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US1719000A - Time recorpeb - Google Patents

Time recorpeb Download PDF

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US1719000A
US1719000A US1719000DA US1719000A US 1719000 A US1719000 A US 1719000A US 1719000D A US1719000D A US 1719000DA US 1719000 A US1719000 A US 1719000A
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Prior art keywords
card
cam
hammer
type
rock
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    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C1/00Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
    • G07C1/02Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data
    • G07C1/04Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data wherein the time is indicated in figures
    • G07C1/06Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data wherein the time is indicated in figures with apparatus adapted for use with individual cards

Definitions

  • Sheets-Sheet 12 Filed Dec.-29. 1922 C. M. CROOK TIME RECORDER 4 Filed Dec. 29. 1922 1s Sheets-Sheet 1s Patented July 2, 192 9,
  • ' -My invention relates toworkmens time --recorders. More specifically it relates to-a type of time recorder which operates a card having anumber of columns thereon desig- .natedfln and Out and also having spaces arranged one above the, otheron the card forija number of days, usually enough to take care of a half month.
  • the card usually has a column for In in the morning; Out
  • One of the objects of my latencies to '55 provide an improved time recorder of the type mdicated, above, having. shiftable type mechanism controlled by time controlled mechanism.
  • a further object of my invem tion is toprovid e shiftable time controlled I Y type mechanism in which the transmission for i the type mechanism is operable in any posi tion to which it is shifted.
  • a further 011- ect of my invention is to provide a time recorder of the type indicated above in which various mechanisms which go to make' up v the machme are mounted on sub-frames which are detachable as a unit.
  • a further object of my invention is to provide improvedmeans for positioning the card ver--'70 tically.
  • a further object ofv my invention is to provideimprovecl'means for preventing blurring of the typing.
  • a further object of my invention it to provide an improved time recorder of the type indicated above,
  • Flg. -1 is-a perspective view of the com plete machine, showing a card about to be inserted;
  • Fig. 2 is a front elevation of the recorder with the casing removed;
  • v Fig. 3 is a vertical sectional view of the machine on theline 3;3 ofI ig. 2;
  • Fig. 4 is a vertical sectional view of the machine on theline 4.
  • Fig. 5 is a top plan view of the machine;
  • Fig. 6 is a horizontal sectional view looking up substantially on the line 6-6 of Fig. 2;
  • Fig. 7 is a vertical sectional view substantially on the line 7 7 of Fig. 2;
  • Fig. 8 is a vertical sectional view substan-- tially on the line 8 8 of Fig. i;
  • Fig. 9 is a horizontal sectional view looking up substantially on the line 9 9 of 2;
  • Fig. '10 is a verticalsectional view substantially on the line 10-1(). of Fig.
  • Fig. 11 is a vertical sectional view substantially on the line 11-11 of Fig.
  • Fig. 12 is a vertical sectional view substantially on the line 1212 of Fig. 8
  • Fig. 13 is a vertical sectional View substantially on the line 13-13 of Fig. 5;
  • Fig. 14 is a vertical section substantially on the line14 14 of Fig. 3;
  • Fig. 15 is a vertical sectional view substantially on the line 1515 of Fig. 2;
  • FIG. 16 is a sectional view showing a form of ball bearing used.
  • timecontrolled mechanism A (Figs. 4 and 5) 0p erable by the workman for typing on a card B the time of day at which the workman arrives or departsytime controlled mechanism C (Fig. 11) forsliifting the printing mechanism laterally from in to out position or vice versa at predetermined intervals; mechanism D. (Figs. 1, 3 and 4) operable by the workman (when authorized by the foreman) for manually shifting the printing mechanism laterally when desired from in to out position or vice versa time controlled mechanism E (Figs. 7 and 12) operable once a day for causing the vertical position of. the card to be varied from day to day to cause the dates to be typed in the proper space on the card B; and indicating means F (Figs. 1, 2,
  • This card B (Fig. 1) has a space 20 for the workmans name, and a space 21 for the workmans number, and is ruled to provide a number of horizontal rows for the different days, and a number of vertical columns headed Morning in; Morning out; Afternoon in; Afternoon out; Overtime in; Overtime out.
  • Morning out Morning out
  • Afternoon in Afternoon out
  • Overtime in Overtime out.
  • the card shown has sixteen horizontal rows.
  • This type mechanism comprises a laterally shiftable carriage 22 mounted to be shifted laterally on supporting and guide rails or rods 23 and 24 respectively.
  • a pair of grooved wheels or rollers 25 mounted on the carriage 22 and straddling the guide rail 23 form the main anti-friction support for the type carriage.
  • the auxiliary rollers or wheels .26 and 27 which engage the guide rod 24 serve to additionally support andposition the type carriage in its travel. fiche guide rollers 26 which engage the underside of'the guide rod 24 hold the front portion of the type carriage against upward'displacement while the guide rollers 27 which engage the rear side of the guide rod 24 hold the type carriage 22 against forward tipping movement.
  • This ball bearing construction shown in detail in Fig. 16, comprises a pair of cup members 27 and 27, which telescope together to form a ball race, and a pair of spiders 27 e and 27, which fit between and embrace the ball race, and the legs of which interfitwith each other and may be clinched over as indicated at 27 and 27, to secure the entire construction in position in the opening of the supporting plate in which the ball bearing is mounted.
  • the type carriage (shown removed from the rest of the mechanism in Fig. 13) comprises three type wheels 28, 29 and 30, respectively, the type wheel 28 being provided with characters indicating the days of the week; the type wheel 29 being provided with characters indicating the hours of the day; and the type wheel 30 provided with characters indicating the minutes of the hour. 0
  • This time controlled mecha- 'nism comprises an electromagnet- '38, (enerized periodically, usually once a minute) iaving an armature 39 pivotally mounted at.
  • pawl 42 meshingwith the elongated pinion 34 preing the armature 39 upon de-energization of the electromagnet 38, to cause the pawl 42 to actuate the'ratchet Wheel 44, (Figs 2 and A spring pressed pawl 47 is provided, engag ing the underside of the ratchet wheel 44, to prevent backward movement of this ratchet wheel.
  • the pawl 42 is provided with a downwardly extending arm 48,'which engages a stop 49, to prevent overtravel of the ratchet wheel. This arm 48, engaging the stop 49, at the latter part of'the movement of the arm 41, holds the pawl 42' firmly in en-.- I I I ring. in or out, say between the hours of mid- .125
  • roller .70' mountejd onithe lower end of the rock lever 56', and gradually restores this rock I lever tooriginal position," thus. returning i the type carriage to its original position ready .to start the next day.
  • This return pperation of the type carriage may takeiplace during; the hourswlien there. are no workmen'comof the day, so that the.
  • cam pieces can beset 1 1 30 '53 independent-lyiot the time 'controlled n ech- I As this compound cam is thus slowlyf rolief which extend through plate 73 and through arcuate slots (not 'shown) in the various cam pieces, and are threaded into a rear clamping disc 75, the various cam pieces being set in the desired position and clamped between the two clamping discs or plates 73 and 75, by means of the clamping screws 74.
  • the t-ransn-iission means from the elongated pinion 34, to the compound cam 69 comprises a spur gear 76, (Fig. 11) meshing with the elongated pinion 34, a bevel pinion 77, rotatable with the spur gear 7 6, a bevel gear 78, meshing with the bevel pinion 77 a spur pinion 79, rotatable with the bevel gear 78, a spur gear 80, meshing with the spur pinion 79, a spur pinion 81, rotatable with the spur gear 80, a spur gear 82, meshing with the spur pinion 81. and a shaft 83 on which the spur gear 82 is mounted, and onwhich the compound cam 69 also is mounted so that this compound cam 69 rotates with the spur gear.
  • a torsion spring 91 extends between the rock levers 86 and 87, and normally holds the arms 92 and 93 of these rock levers against the stop 95, and thus normally holds the pins 96 and 97 on these rock arms 86 and 87 engagement with the rock arm 88.
  • either one of the rock levers 86 or 87 can be moved to operate the rock arm 88 when desired by means of the rock member 84, which. has a pin 98 thereon, located between the extensions or arms 92 and 93, so that when this rock member 84 is turned in one direction it will bring the rock lever 86 into engagement with the rock arm 88, and when it moves in the other direction, it will bring the other rock lever 87 into engagement with the rock arm-88.
  • the transmission 66 from the elongated clockcontrolled pinion 34 to the compound cam 69 is mounted between a pair of substantially parallel plates '99 and 100, which in turn are mounted on a supporting casting or bracket 101, secured to the main side plates 102 and 103 of the machine.
  • a clock dial 104 may be mounted in front of the bracket 101, the hands 105 and 106 beingdrivon from a spur pinion 107 mounted to rotate with the bevel gear 78, by suitable transmission not necessary'to be described in detail.
  • I provide a pointer 108 on the type carriage 22, which co-operates with an indicating plate 109 mounted on the bracket 101, this indicating plate 109 bearing the designation Morning in, Morning out, Afternoon ir", Afternoon out, Overtime in and Overtime out.
  • This enables the workman to know in what positionthe type carriage 22 is set, and enables him to shift the type carriage, when he has the authority of the superintendent, to bring the type carriage to the proper position.
  • the hammer mechanism is probably best shown in Figs. 3, 4, and 12, although it is also shown in Figs. 2, 5, 6, and 8.
  • the hammer 110 is withdrawn from the type wheels against the tension of the coil tension springs 111, when the Workman presses down on the handle 112 and is suddenly released at-a certain point in the movement of the handle, to permil; the hammer to snap forward under the action of the springs 111, to cause the elongatedrubber face 33 of the hammer to snapthe card B, over against the inked ribbon 113, which runsbctween the type wheels and the card B.
  • the springs 111 do not directly bring the hammer face against the card, the final impact movement of the hammer being effected solely by the-momentum of the hammer, and indeed against the action of a pair of springs 114, which act immediately after the impact together at, 115, (Fig. 12) these two pivetally 5 Stop means-hereinafter described in detail are provided for limiting the distance to which the springs 111 can move the lower 7 portion 118 of the hammer.
  • F i 12 shows the-shoulders 116 and 117 slightly apart, showing that the lower portion 118 of the hammer has come to a stop, and that the upper portion 119 has swung forward due to its own momentum against.
  • @rwhich'cooperates with the rigid metal stop members comprises a metal pocket 124 rigidly secured to the hammer, in which is seated a'eushion 125 of rubber-or similar suitable material, the rubber extendiiigsome distance.
  • the gradual lifting movement of the rec levers 133 is: eifected by thefgradually i a, clined forward portion-of .thecam'fportionjsj 130, the sudden drop being etfoted'whenthe rollers 132"ride -off the" abrupt 'cre s tflofgthe cam portion 130 a'nd' drop'down-onto he sueceeding cam portion. 5 'j i
  • the printing on the f card would be apt to be blurred, as the type both above and below the'printingpoint might make a partial impression on the card,
  • the lower strip 139 is offset slightly 'with respect to the flexible strip 140, the plate 139 being slightly further forward than the plate l4 0.
  • the purpose of this is topreventithe lower edge of the card B from catching on'the upper edge of the flexible plate 139 as it is'being inserted.
  • the flexible plate 140 will steer the lower edge of 30 the card so that it will clear the-upper edge of the flexible plate 139 when, it is being inserted into the cardholder. 'Uard holding and positioning mechanism.
  • I will now'describe the'ineans for holding and positioning the card, shown more particularly in Figs. 3, 4, 7, 8 and 12 and also shown in Figs. 2, 5 and 9.
  • This comprises a pair of spaced vertical guides 142 and I 143, having grooves 144 to receive the vertical side. edges 1 of the card B, a pivotedcard rest 145 mounted on a rock shaft 145, to oscillate therewith having a series of steps or rests 146, on which the lower edge of the card B rests, and time controlled mechanism 147 (Fig: 7), forcontrolling the movement of the pivoted card rest 145', so that on each succeeding day .a difler ent rest or step 146 will be brought into posi tion for the lower edge of the card to re'ston,
  • the card will be inserted less far into the machine to cause -'the printin to be done in the proper place.
  • This 0100 controlled mechanism 'for causing a limited pivotal movement of the card rest 145 comprises a spiral cam 148,;1nounted' on a shaft 149, and engaging a'pin-or stud'1-50,
  • This transmission mechanism 152 from the time controlled ratchet wheel 44, previously referred to, 'to the spiral'cam 148 comprises a pinion 153 (Figs. 2 and 7) ,mounted on the ing with the pinion 155,- an adjustable cam member 157, adjustably'mounted on the spur portion engageable by the cam member i 157, a downwardly extending awl 161 pivotally connected at 162 with t e rock'lever 158,- a ratchet wheel 163 which is given a stepby-step movement by the downwardly extend-" ing pawl member161, a shaft 164 on which the ratchet wheel 163 is'mounted a'spur gear 165 mounted on the 'shaft164 to rotate with meshing with the spur gear, 165, and mount:
  • the construction is designed so that the large gear 156'revolves' once each day. This .brings the cam member 157 into engagement with thedownwardly projecting follower portion 160 of the rock lever 158 once each day, and thus lifts this rock lever 158 once .every day.
  • a coil tension spring 168 is provided, connected at 169 to an upward exten- '-sion 170 of the rock lever 158, for returning this rock lever 158 after it has been lifted by the cam member 157 and after this cam memher 157 has-moved far enough along to allow 160 drops down, the rock lever 158 falls and gives a downward movement to the pawl 161, which in turn advances the ratchet wheel 163 one step and throughthe transmission pre- 4 supporting the lower edge of the card B which is to be inserted.
  • a pawl 171 is provided, pivoted M172,
  • the pawls 171 and 161 are held in operative relation with respect to the ratchet wheel 163 by means ofa coiltension spring 173, connecting the two .pawls.
  • this pawl member In'order to prevent-the ratchet wheel 163 from running ahead of the pawl 161, after this pawl has completed its movement, this pawl member is provided with a downwardly extending finger 174, which engages the shaft 164, to positively hold the pointer the pawl 161 in engagement with the ratchet'wheel 163 and thus prevent overthrow of the ratchet wheel.
  • the cam member 157 is adjustably mounted on a dial 175 secured to rotate with the gear lar rib portion as indicated 'at 178, the clampmaeeo 156, this dial being-provided with numbers to indicate the hours of the day, so'fthat the cam member 157 can be set Wherever desired to cause the shifting of the card rest 1315 to take place at any time of day desired, prefer ably during a time when the machine will not be in use.
  • This cam member-157 comprises a metal stamping shaped to provide a clamping portion 176 (Fig. 9) which straddles the edge of the dial, as shown in Fig. 9, a clamping screw 177 being provided extending through one side ofithe' clamping portionof the cam and threaded-into the other;
  • the dial 175 is provided at its periphery with an annuing portion 1760f the cam member heingprovided with bumped inportions 179 and 180. interfitting with this annular rib 8, to assist in positioning the cam member 157-with respect to the dial 175.
  • a notched disc 181 (Figs. 7' and 8)' is secured to the dial l75," t'he. cammember 157 having a point 182, which can be fitted into one of the notches on the notched disc 181.
  • the adjustable cam 157 can be shifted to any position about the periphery of the dial 175 and can be held in this adjusted position by means of the clamping screw 177. 'llh-us the cam'member 157 can beset so as to cause thecard rest 145 to be shifted at any desiredtime of'day-or night. i
  • This indicating cylinder 183,] isgiyena step-by-step movement correspondingto the" link188, andhaving a segmental gear por tion 190 on its other ,arm191, and a pinion:
  • the cards are made out with spaces for 16 days, so that the card for the first half of the month will run from-one to 16 and the. card: for the second half of the month will run. from 17 to theend'of the month.
  • the indicating cylinder 18,3 has two columns, the firsticolumn containingthe numhers'froin 1 to "lo and-the through the opening 'I S'i'indicates the dz Y the month, and 'forthe'secondhalf-of the month, the-number in the right llillTCl'CQlillllll visible through the opening 184 indicates the day of the month;
  • the openinglSi is wide enough so that both columns are visible but the observer will of course know which column to'read.
  • this ribbon-feed mechanism comprises a pair of spools 1.961 and 197, (Figs. 5 and provided for slowlyfeeding the. ribbon 113 back and forth, this mechanismbeing described and claimed in my copending' application, 578,517,.filllduly -29, 1922.
  • a general- 8 'to which theendsfof the ribbon 113 are 4 secured, andmechanism operable by the handle 112, for giving a step-by-step motion to one or thefother of the spools, the feed being automatically shifted from onespool to the other at the endofthe travel of theribbcn.
  • Thismechanism comprises a link 198, (Figs.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Time Recorders, Dirve Recorders, Access Control (AREA)

Description

July 2, 1929- C. M. CROOK TIME RECORDER Filed Dec, i922. 13 Sheets-Sheet 1 W AM c. M. CROOK TIME RECORDER July 2, 1929.
13 Sheets-Sheet 2 Filed Dec. 29. 1922 l llllllll C. M. CROOK TIME RECORDER July 2, 1929.
Filed Dec. 29. 1922 15 Sheets-Sheet 6' y 1929- c. M. CROOK 1 TIME REGOFQDER Filed Dec. 29. 1922 13 Sheets-Sheet 4 1424 [4 if Z61? July 2,1929. 0
TIME
Filed Dec. 291 1922 CROOK nngonnm 13 Sheets-Sheet 5 July 2, 1929.
c. M. CROOK TIME RECORDER Filed Dec. 29'. 1922 13 Sheets-Sheet 6 l l l J 1| July 2, 1929,
' c. M. ciaooK TIME RECORDER Filed Dec. 29. 192g 13 Sheets-Sheet v I 13 Sheets-Sheet 8 y c. 'M. CROOK TIME RECORDER Filed Dec. 29. 1922 c." M. hooK TIME RECORDER Jul 2, 1929.
Filed Dec. 29. 1922 13 Sheets-Sheet .10
mwf w ffi My 2,1929, I c. M. C QQK Lmma TIMERECORDER Filed Dec. 29. 1922- 13 Sheets-Sheet ll Q. N: CROOK TIME RECORDER July 2, 192%.
13 Sheets-Sheet 12 Filed Dec.-29. 1922 C. M. CROOK TIME RECORDER 4 Filed Dec. 29. 1922 1s Sheets-Sheet 1s Patented July 2, 192 9,
rice.-
"oiIAItLEs M. cItooIr, or cn'IcAeo, ILLINOIS, AssIeNon. 'ro s'rRoi/I'BnRG ranc'rmc COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or MAINE.
TIME' RECORDER.
Application filed December 29, 1922. Serial No. 609,573.
' -My invention relates toworkmens time --recorders. More specifically it relates to-a type of time recorder which operates a card having anumber of columns thereon desig- .natedfln and Out and also having spaces arranged one above the, otheron the card forija number of days, usually enough to take care of a half month. The card usually has a column for In in the morning; Out
in the morning; In in the afternoon; Out
in the afternoon; In for overtime; and Out for overtime. V The workman on coming in in the morning inserts his .card-into the machine, and
operates a lever or other suitable operating means, which will cause to be typed in the proper place onthe card the time at wh ch the Workman comes in. Similarly on gomg out at noon, he inserts the card into the nachine, and operates the lever, causingthetime at which he goes out at noon to be printed or typed on the card; and so on for the other columns for'afternoon in, afternoon out? and so forth. Means are provided whereby at a certain time in the morning, a shift will be made which will cause the'type to be done in the Out column rather than in the In column, the time of this shift being arbitrarily demeans are provided operable automatically: once a day for causing the vertical position of the card to-be varied from day to day,to
cause the date to-beprinted'in theproper;
place on the card.
One of the objects of my latencies to '55 provide an improved time recorder of the type mdicated, above, having. shiftable type mechanism controlled by time controlled mechanism. A further object of my invem tion is toprovid e shiftable time controlled I Y type mechanism in which the transmission for i the type mechanism is operable in any posi tion to which it is shifted. A further 011- ect of my invention is to provide a time recorder of the type indicated above in which various mechanisms which go to make' up v the machme are mounted on sub-frames which are detachable as a unit. A further object of my invention is to provide improvedmeans for positioning the card ver--'70 tically. A further object ofv my invention is to provideimprovecl'means for preventing blurring of the typing. A further object of my invention it to provide an improved time recorder of the type indicated above,
which will be durable and eficient in use. Further objects will appear in the detailed description to follow'and from the appended I 30 termined, at a time when it is presumed that kclaims.
most of the workmenwill be in and th t after this time call or the'majority of jt 1e cards should be typed inthe Out coluinn. Inthe event, however, that a workman 35 comes in very late, after this automatic shift has taken place,.he would'still want to have his card typed in the In column to show the time he arrived, rather than in the Out column wherev the shift would naturally 40 cause it to be placed.
In the event of such late arrival, the workman goes to the foreman, and secures from him a key which enables him-to manually make a shift which will enable him to have his card printed in the In column rather than in theOutcolumn.
In order that the times of arrival and departure will be printed on different lines on different succeeding days, time controlled,
In the drawings, in which an embodiment of'my invention is shown,
Flg. -1 is-a perspective view of the com plete machine, showing a card about to be inserted;
Fig. 2 is a front elevation of the recorder with the casing removed; v Fig. 3 is a vertical sectional view of the machine on theline 3;3 ofI ig. 2;
Fig. 4 is a vertical sectional view of the machine on theline 4. l of Fig. 2-; Fig. 5 is a top plan view of the machine; Fig. 6 is a horizontal sectional view looking up substantially on the line 6-6 of Fig. 2;- Fig. 7 is a vertical sectional view substantially on the line 7 7 of Fig. 2;
Fig. 8 is a vertical sectional view substan-- tially on the line 8 8 of Fig. i;
Fig. 9 is a horizontal sectional view looking up substantially on the line 9 9 of 2;
Fig. '10 is a verticalsectional view substantially on the line 10-1(). of Fig.
Fig. 11 is a vertical sectional view substantially on the line 11-11 of Fig.
Fig. 12 is a vertical sectional view substantially on the line 1212 of Fig. 8
Fig. 13 is a vertical sectional View substantially on the line 13-13 of Fig. 5;
Fig. 14 is a vertical section substantially on the line14 14 of Fig. 3;
Fig. 15 is a vertical sectional view substantially on the line 1515 of Fig. 2; and
'Fig. 16 is a sectional view showing a form of ball bearing used.'
Referring now to the drawings in detail, the
construction shown therein comprises timecontrolled mechanism A (Figs. 4 and 5) 0p erable by the workman for typing on a card B the time of day at which the workman arrives or departsytime controlled mechanism C (Fig. 11) forsliifting the printing mechanism laterally from in to out position or vice versa at predetermined intervals; mechanism D. (Figs. 1, 3 and 4) operable by the workman (when authorized by the foreman) for manually shifting the printing mechanism laterally when desired from in to out position or vice versa time controlled mechanism E (Figs. 7 and 12) operable once a day for causing the vertical position of. the card to be varied from day to day to cause the dates to be typed in the proper space on the card B; and indicating means F (Figs. 1, 2,
and 7) operable once a day for indicating the datecorresponding to tliespace on the card B which will receive the impression.
In order to enable the construction and operation of themachine to be better understood, a description of the card on which it operates will now be given.
This card B (Fig. 1) has a space 20 for the workmans name, and a space 21 for the workmans number, and is ruled to provide a number of horizontal rows for the different days, and a number of vertical columns headed Morning in; Morning out; Afternoon in; Afternoon out; Overtime in; Overtime out. As stated above, there are usual- 1y enough horizontal rows on the card to provide for a half month. The card shown has sixteen horizontal rows.
Type mechanism shiftable for In and Out.
laterally may be determined arbitrarily by the foreman or superintendenha suitable time controlled mechanism being provided whereby the automatic shift is efiected at the desired time.
As indicated above, means operable by the workman (when authorityis obtained from the foreman or superintendent) are provided whereby the type mechanism may be shifted manually independently of the automatic shifting.
The hiftable type mechanism itself will first be described before describing the automatic control and the manual control for shifting it, referring to Figs. 2, 3, 4, 5,10 and 13.
This type mechanism comprises a laterally shiftable carriage 22 mounted to be shifted laterally on supporting and guide rails or rods 23 and 24 respectively. A pair of grooved wheels or rollers 25 mounted on the carriage 22 and straddling the guide rail 23 form the main anti-friction support for the type carriage. The auxiliary rollers or wheels .26 and 27 which engage the guide rod 24 serve to additionally support andposition the type carriage in its travel. fiche guide rollers 26 which engage the underside of'the guide rod 24 hold the front portion of the type carriage against upward'displacement while the guide rollers 27 which engage the rear side of the guide rod 24 hold the type carriage 22 against forward tipping movement. Because of the provision of these rollers 25, 26 and 27, very little force is required to-shift the type carriage laterally, so that it can easily be shifted by means of amagnetically operated secondary clock mechanism. This here stated also that ball bearings are provided for all of the rotatable arts. Because of this provision, very little orce is required to rotate these parts, and the magnetically operated secondary clock mechanism is able to operate the clock driven parts readily in addition to shifting the type carriage.
This ball bearing construction, shown in detail in Fig. 16, comprises a pair of cup members 27 and 27, which telescope together to form a ball race, and a pair of spiders 27 e and 27, which fit between and embrace the ball race, and the legs of which interfitwith each other and may be clinched over as indicated at 27 and 27, to secure the entire construction in position in the opening of the supporting plate in which the ball bearing is mounted.
The type carriage (shown removed from the rest of the mechanism in Fig. 13) comprises three type wheels 28, 29 and 30, respectively, the type wheel 28 being provided with characters indicating the days of the week; the type wheel 29 being provided with characters indicating the hours of the day; and the type wheel 30 provided with characters indicating the minutes of the hour. 0
These type wheels are driven from a spiir. gear 31, mounted on the carriage, this pinior being clock controlled, and suitable trans? will cooperate with the characters on the type proper characters to represent the day of the week, the hour of the day and the minute of 'the hour, will be presented at the proper time .for cooperation withthe elongated hammer face33,
: It is here stated that this hammer face-is elongated in order that some portion of it wheel, no matter to What lateral position the I type carriage may be shifted;
' 'struction of thetype carria'g'e,it is stated that itIcomprisesa sub frame 35 having a pair'ot J spaced.side-plates136 and 37, on which. the guiding and supporting rollers 25.26, and 27-, are -m o'unted and between which the type- In order to connect up the driving gear I I I I .riage 22-"lateiially-eomprises a'l1or'iZontal,- rack 8 0 forthe type wheels i vith-theclock controlled mechanism, l provide an'elongate'dpi'nion 34, with which the type. wheel, drive gear- 31 "n 1ehe's, this type, wheel 1 {drive gear. 31. being .1. shiftable laterally along the elongated pinion,
as the typefearriage iss'hifted. r
" .In order-to give, ageneral-ide'a of the-conwheels 28, 29j'and 30, are 'mounte ch-and onviously described, and a spring 46*?for returnw'hieh the transmission32' froni jthe type .wheel drivegear .typefwheels is mountedx- Y I .The timecontrolled mechanism for opera-t- .ing the elongated drive pinion 34 will now be. described, referring particularly to Figs. 2,-
3, 4, 5, 6 -and 7.-j 3 This time controlled mecha- 'nism comprises an electromagnet- '38, (enerized periodically, usually once a minute) iaving an armature 39 pivotally mounted at.
40, an upwardly eiitendingarm 41., mounted to oscillate with the armature39, a pawl 42, pivotally mounted at43 on the upper end ofthevertic'al arm v41, a ratchet wheel'44, driven by the pawl 42, ashaft 45, on .which the ratchet wheel 44 is mounted, extendingacross from one side to the other of the maohine,a
spurgear 46, mounted'on the shaft 45, and
meshingwith the elongated pinion 34 preing the armature 39 upon de-energization of the electromagnet 38, to cause the pawl 42 to actuate the'ratchet Wheel 44, (Figs 2 and A spring pressed pawl 47 is provided, engag ing the underside of the ratchet wheel 44, to prevent backward movement of this ratchet wheel. The pawl 42 is provided with a downwardly extending arm 48,'which engages a stop 49, to prevent overtravel of the ratchet wheel. This arm 48, engaging the stop 49, at the latter part of'the movement of the arm 41, holds the pawl 42' firmly in en-.- I I I ring. in or out, say between the hours of mid- .125
gagement with theiratchet wheel, and will not permit the ratchet wheel to travel ahead spur gear 5'1-meshing with,the-rack'fil) a spur fllei 'i l the'elongat d' pinion to the type wheels, I
may be so designed that each "osc illationof the armature'of the electroinagfi-Tet'will cause.
the minute type wheel to be' \.advanced one i v. I
minute. 1 g
,I will now describe a sel-f contained unit whichcomprises the time" controlled mechanism for controllingfthef lateral shift of'fthe type carriage, the'm anu'alicontrol for 'the lat h f e y e ar esel ndth 7 .f' and hands of the cl'ock'; describin ve temechanism, reference. mad larly to Figs.-'1f,'2, 3,5,'9, 10 and-11 5O mounted-imthe'.frontfof the car age,'-.a
pinion 52rotatable with the spur gear:5 l,sfw
61, 62- and 63, for controlling ther ockf lever 56. ,a coil tension spring .64, (Fig. 11)), 'for" holding the point 65 ofthejrock lever-'tfi over against thefc'am. pieces 58,- 59, et'c .',-t'raijsmis sion 66 between the elongated pre-' viously'referred to and thecam p eces 58, 59, etc, a manually operable but-ton 6-1, and,
transmission means 68.,betweeh this m nuall operable knob 01' button 67' and the rocklever' 53,-whi'ch'doesnot interfere givith the ftime 1 controlled operation ofthe'ro'ck le'verand 3 a .which can be used to operate this rock'lever trolled-elongated pinion 34 and; the compo il n'd 'cam 69 comprising the cam pieces 58, 59',{e't'c,,*"l; it is so designed that this compound cam .69
will be rotated once every twenty-four hours.
tated, the point 65 of the rock lever ,56'will 1 successively drop-from one cam piece'on to l' v the following camfpiece, eaehdrop of this arm effecting a shiftof the type-carriage After the point 65;.ofthe crock? le'ver h as' 1115 'droppedfofi from the last cam piec e'63, cam- I piece 58 comes ,into, engagement :with the v;
roller .70' mountejd onithe lower end of the rock lever 56', and gradually restores this rock I lever tooriginal position," thus. returning i the type carriage to its original position ready .to start the next day. This return pperation of the type carriage may takeiplace during; the hourswlien there. are no workmen'comof the day, so that the. cam pieces can beset 1 1 30 '53 independent-lyiot the time 'controlled n ech- I As this compound cam is thus slowlyf rolief which extend through plate 73 and through arcuate slots (not 'shown) in the various cam pieces, and are threaded into a rear clamping disc 75, the various cam pieces being set in the desired position and clamped between the two clamping discs or plates 73 and 75, by means of the clamping screws 74.
The t-ransn-iission means from the elongated pinion 34, to the compound cam 69, comprises a spur gear 76, (Fig. 11) meshing with the elongated pinion 34, a bevel pinion 77, rotatable with the spur gear 7 6, a bevel gear 78, meshing with the bevel pinion 77 a spur pinion 79, rotatable with the bevel gear 78, a spur gear 80, meshing with the spur pinion 79, a spur pinion 81, rotatable with the spur gear 80, a spur gear 82, meshing with the spur pinion 81. and a shaft 83 on which the spur gear 82 is mounted, and onwhich the compound cam 69 also is mounted so that this compound cam 69 rotates with the spur gear.
The transmission 68 f1 am the manually operable button 67 to therock lever 53 which carries the gear segment, comprises member 84, (Figs. 4 and 11), mounted on the inside of the cover 85, and oscillatable with the manuall operable knob, a pair of oseillatable levers 86 and 87, oscillatable by means of the rock member 84, a rock arm 88,
located between the oscillatable rock levers 86 and 87, and operable by them alternatively, and a link 89, pivotally connected at one end 90 with the rock arm 88 and at the other end with the rock lever 53 which carries the gear segment 55.
A torsion spring 91 extends between the rock levers 86 and 87, and normally holds the arms 92 and 93 of these rock levers against the stop 95, and thus normally holds the pins 96 and 97 on these rock arms 86 and 87 engagement with the rock arm 88.
However, either one of the rock levers 86 or 87 can be moved to operate the rock arm 88 when desired by means of the rock member 84, which. has a pin 98 thereon, located between the extensions or arms 92 and 93, so that when this rock member 84 is turned in one direction it will bring the rock lever 86 into engagement with the rock arm 88, and when it moves in the other direction, it will bring the other rock lever 87 into engagement with the rock arm-88.
, Thus by turning the manually operable knob 67 in one direction or the other, the rock lever 53 which carries the gear segment can be "oscillated in one direction or the other, and
thus the'type carriage 22 shifted in one direction or the other.
a rockout of This manual adjustment of the type carriage 22 can be effected independently of the time controlled cam controlled movement of the type carriage, because of the spring connection 91 between the rock lever 86 and t e rock lever 87, and because of the fact that the rock lever 56 can be moved away from engagement with the compound cam 69 by. stretching the spring 64 which holds this rock lever 56 against the cam 69.
In order to give a general idea of the structure, it is stated that the transmission 66 from the elongated clockcontrolled pinion 34 to the compound cam 69 is mounted between a pair of substantially parallel plates '99 and 100, which in turn are mounted on a supporting casting or bracket 101, secured to the main side plates 102 and 103 of the machine.
In order to indicate the time ofday, a clock dial 104 may be mounted in front of the bracket 101, the hands 105 and 106 beingdrivon from a spur pinion 107 mounted to rotate with the bevel gear 78, by suitable transmission not necessary'to be described in detail.
In order to indicate the in.and out position of the type carriage, I provide a pointer 108 on the type carriage 22, which co-operates with an indicating plate 109 mounted on the bracket 101, this indicating plate 109 bearing the designation Morning in, Morning out, Afternoon ir", Afternoon out, Overtime in and Overtime out. This enables the workman to know in what positionthe type carriage 22 is set, and enables him to shift the type carriage, when he has the authority of the superintendent, to bring the type carriage to the proper position.
Hammer mecha'n z's Im The hammer mechanism is probably best shown in Figs. 3, 4, and 12, although it is also shown in Figs. 2, 5, 6, and 8. The hammer 110 is withdrawn from the type wheels against the tension of the coil tension springs 111, when the Workman presses down on the handle 112 and is suddenly released at-a certain point in the movement of the handle, to permil; the hammer to snap forward under the action of the springs 111, to cause the elongatedrubber face 33 of the hammer to snapthe card B, over against the inked ribbon 113, which runsbctween the type wheels and the card B.
The springs 111 do not directly bring the hammer face against the card, the final impact movement of the hammer being effected solely by the-momentum of the hammer, and indeed against the action of a pair of springs 114, which act immediately after the impact together at, 115, (Fig. 12) these two pivetally 5 Stop means-hereinafter described in detail are provided for limiting the distance to which the springs 111 can move the lower 7 portion 118 of the hammer. rThis stopping of the movement of they portion 118 of the 10 hammer under the'action of the spring 111- takes place before the hammer face has engaged the card B, so that the remaining movement of the hammer face is due to the -mon1entum of the upper-portion-119, which '15 t causes the upper portion 119 of the hammer:-
to swing forward about its pivot 115, and I against theaction of the springs 114, as indicated in Fig. 12, until the rubber face 33 of the hammer engages the card B, and sna s v it over against-the ribbon 113, causing.t e
day, hour and minute to be impressed on the card. F i 12 shows the- shoulders 116 and 117 slightly apart, showing that the lower portion 118 of the hammer has come to a stop, and that the upper portion 119 has swung forward due to its own momentum against.
the action of the spring's'114'. In order to limit the distance to which the upper portion of the hammer cantravel due to its own momentum, I provide 'a pair of sto s 120 and v 121, (Fig. 8)'one ateach side oft e hammer- -'face,'located in the path of the cushion stop A members 122 and 123,-which are secured to the opposite sides of the upper end of the upper portion 119-of the hammer. (See Figs. s 4 and 8.)' The stop members 120 and 121'are metal pins rigidly'secured to the'side frame members 102 and 103. Each. of the cushion istop members, 'mounted -on the hammer,
@rwhich'cooperates with the rigid metal stop members, comprises a metal pocket 124 rigidly secured to the hammer, in which is seated a'eushion 125 of rubber-or similar suitable material, the rubber extendiiigsome distance.
.45 outwardly beyond the pocket, so as to engage the stop member and limit the distance which the upper end of the hammer can move becau se'of its momentum. These stop memhers not only serve to limit the distance which 5 the hammer can move, but also serve to keep the hammer head in alignment throughout its done. Referring further to this igure 12 it will be seen that as soon as the hammerface length, at the time when the printing is being $5 33 strikes the card B, the upper portion 119 of the hammer will rebound or be jerked back by the tension of the springs 114, until the shoulders 116' and 117 are again in en-" gagement with each other. v r. e0 .-'I. will now-described thetransmissionfrom l thehandle 112 to the lower portion 118 of the fihammer. This comprises a lever 126 formed of'apair -of metal bars secured together, on which the'handle proper 112' is mounted, a
not to hold the following rollers 132-11 '-iiis mounted for pivotal'moveinent, a toothed ratchet wheel-128, mounted on the shaft-.128, pawl mechanism 129 acting-between thealever f126jand ratchet wheel 128, whereby each oscillation of the le'ver,1126' 7o causes a quarter turn of the ratchet 'wheel 128, a pair of (mu wheels129, (Fig-.1 4)-=-e'ach I having four similar cam portions 130, also mounted on the shafti'128 and rotatable with.
theifou'r-toothed ratchet wheel 128,'. 'and; a 1
follower shaft13l, having apair-of rollers V v 132,' }'engageable with the cam-wheelsj'129*-,'-. i and mounted 'on the rock' levers 133, which v gagement with the cam wheels 129*.YAs the cam wheels 129 are rotated',-"'theroclrllevers- 133 are caused to rise gradually and then fall suddenly, the gradual rising movemen eifecting the retraction of the hammer and the's'udden fall permitting the quick s'n'ap ping forward of the hammer under the ac tion of the springs-111. The gradual lifting movement of the rec levers 133 is: eifected by thefgradually i a, clined forward portion-of .thecam'fportionjsj 130, the sudden drop being etfoted'whenthe rollers 132"ride -off the" abrupt 'cre s tflofgthe cam portion 130 a'nd' drop'down-onto he sueceeding cam portion. 5 'j i Thepawl mechanism 12 9 f r vgif e'c rig, step-by-step movement of the ratchet when 128 and cam wheels-129 comprises'fapawl' H 134 ig. 12) pivotally mounted. at-=;135 f" -0n the lever 112, which engages a to oth {of the I ratchetwheel'on the downward inov' nt'.,'
of thehand lever; to eflectthe'stifiking ihovee 0 ment of the hammer-,-and a;'se.coiidpawl'136, .i
also pivoted at-135, whichei 4 es agtpothof tion whereby I prevent the inked 'ribbi'an from blurring the card-when the hammer is,actu- 1'120 atedr- This comprises a thinfiexible, metal plate 139, secured a-t' its lower end tothe type a carriage, (Figs. 10 and 12), extending across the rear of the type wheels to apoint just be a I lo'wthe point where the hammer strikes, and asecond flexible plate 140, extendin the full widthxo'fthe card holder 141 'an secured '1 f thereto, (Fig. 8), this flezrible'stripf? b'eing secured at'its upper edge to the-ca I h 65 shaft 127 (Fig.12) oriwhich the lever 126' e and having its lower free'edge ,extnding, 136
downwardly to a point just above the point where the hammer strikes. As shown in Fig. 12, the upper edge of .the flexible plate 139 and the lower edge of. the flexible plate 140 are between 'the ribbon- 113 and the card B with just space enough between them to per m it the hammer 110 to drive a portion of the cardB between these edges against the ribbon 113. "The two flexible plates thus serve be? tween them to properly position and guide 3 gear 156, a rock lever 158, pivoted at 159,-and having ,a downwardly extending follower the ribbon and to-efi'ectuall'y prevent printing at any place except at that-portion of the card between the lower edge of the flexible plate 140', and theupper edge of the flexible plate 139. I 4
Without these guards, the printing on the f card would be apt to be blurred, as the type both above and below the'printingpoint might make a partial impression on the card,
which would make the card very d'iflicult to' g the ratchet wheel 163, and a spur gear 166,v
- read.
As shown in Fig. '12, the lower strip 139 is offset slightly 'with respect to the flexible strip 140, the plate 139 being slightly further forward than the plate l4 0. The purpose of this is topreventithe lower edge of the card B from catching on'the upper edge of the flexible plate 139 as it is'being inserted. The flexible plate 140 will steer the lower edge of 30 the card so that it will clear the-upper edge of the flexible plate 139 when, it is being inserted into the cardholder. 'Uard holding and positioning mechanism.
I will now'describe the'ineans for holding and positioning the card, shown more particularly in Figs. 3, 4, 7, 8 and 12 and also shown in Figs. 2, 5 and 9. This comprises a pair of spaced vertical guides 142 and I 143, having grooves 144 to receive the vertical side. edges 1 of the card B, a pivotedcard rest 145 mounted on a rock shaft 145, to oscillate therewith having a series of steps or rests 146, on which the lower edge of the card B rests, and time controlled mechanism 147 (Fig: 7), forcontrolling the movement of the pivoted card rest 145', so that on each succeeding day .a difler ent rest or step 146 will be brought into posi tion for the lower edge of the card to re'ston,
so that on each succeeding day,. the card will be inserted less far into the machine to cause -'the printin to be done in the proper place.
This 0100 controlled mechanism 'for causing a limited pivotal movement of the card rest 145 comprises a spiral cam 148,;1nounted' on a shaft 149, and engaging a'pin-or stud'1-50,
I This transmission mechanism 152 from the time controlled ratchet wheel 44, previously referred to, 'to the spiral'cam 148 comprises a pinion 153 (Figs. 2 and 7) ,mounted on the ing with the pinion 155,- an adjustable cam member 157, adjustably'mounted on the spur portion engageable by the cam member i 157, a downwardly extending awl 161 pivotally connected at 162 with t e rock'lever 158,- a ratchet wheel 163 which is given a stepby-step movement by the downwardly extend-" ing pawl member161, a shaft 164 on which the ratchet wheel 163 is'mounted a'spur gear 165 mounted on the 'shaft164 to rotate with meshing with the spur gear, 165, and mount:
ed onvthe same shaft 149 on which the spiral cam- 148 previously referred to'is mounted.
The construction is designed so that the large gear 156'revolves' once each day. This .brings the cam member 157 into engagement with thedownwardly projecting follower portion 160 of the rock lever 158 once each day, and thus lifts this rock lever 158 once .every day. A coil tension spring 168 is provided, connected at 169 to an upward exten- '-sion 170 of the rock lever 158, for returning this rock lever 158 after it has been lifted by the cam member 157 and after this cam memher 157 has-moved far enough along to allow 160 drops down, the rock lever 158 falls and gives a downward movement to the pawl 161, which in turn advances the ratchet wheel 163 one step and throughthe transmission pre- 4 supporting the lower edge of the card B which is to be inserted.
A pawl 171 is provided, pivoted M172,
and engaging the ratchet wheel 163 to prevent backward movement thereof. The pawls 171 and 161 are held in operative relation with respect to the ratchet wheel 163 by means ofa coiltension spring 173, connecting the two .pawls.
In'order to prevent-the ratchet wheel 163 from running ahead of the pawl 161, after this pawl has completed its movement, this pawl member is provided with a downwardly extending finger 174, which engages the shaft 164, to positively hold the pointer the pawl 161 in engagement with the ratchet'wheel 163 and thus prevent overthrow of the ratchet wheel.
The cam member 157 is adjustably mounted on a dial 175 secured to rotate with the gear lar rib portion as indicated 'at 178, the clampmaeeo 156, this dial being-provided with numbers to indicate the hours of the day, so'fthat the cam member 157 can be set Wherever desired to cause the shifting of the card rest 1315 to take place at any time of day desired, prefer ably during a time when the machine will not be in use. This cam member-157 comprises a metal stamping shaped to provide a clamping portion 176 (Fig. 9) which straddles the edge of the dial, as shown in Fig. 9, a clamping screw 177 being provided extending through one side ofithe' clamping portionof the cam and threaded-into the other;
s'icleof the clamping portion, to draw these side portions together, to cause them to firmlygrip the edge of the dial 175. The dial 175 is provided at its periphery with an annuing portion 1760f the cam member heingprovided with bumped inportions 179 and 180. interfitting with this annular rib 8, to assist in positioning the cam member 157-with respect to the dial 175. To further assist in positioning the cam member 157 withre'spect to. the dial 175, a notched disc 181 (Figs. 7' and 8)' is secured to the dial l75," t'he. cammember 157 having a point 182, which can be fitted into one of the notches on the notched disc 181. I p
The adjustable cam 157 can be shifted to any position about the periphery of the dial 175 and can be held in this adjusted position by means of the clamping screw 177. 'llh-us the cam'member 157 can beset so as to cause thecard rest 145 to be shifted at any desiredtime of'day-or night. i
In order to provide .a visible indica r which will show the day of'the month "corresponding. to the position of the card rest 14-5, provide .a rotatable cylinder 183-, hav- I ing on its cylindrical surface a series of numhere corresponding to the days of the month,
these numbers being visible through a sight opening 184 in the'casing 85.
This indicating cylinder 183,] isgiyena step-by-step movement correspondingto the" link188, andhaving a segmental gear por tion 190 on its other ,arm191, and a pinion:
192 meshing with the segmental gear portion 190 and secured tothe shaft 186 on which the indicating cylinder 183 is mounted It will be noted that there are 16 steps or rests on the card rest 145. It will also be noted that the spiral cam 148 contrcls the position of this ca'rd'rest l l5ft'erminates in an abrupt drop," which perm-its'the card 'rest to drop back after-the 16th day to the position which it occupied on the first day.
As indicated above,-the cards are made out with spaces for 16 days, so that the card for the first half of the month will run from-one to 16 and the. card: for the second half of the month will run. from 17 to theend'of the month. It will'be noted that the indicating cylinder 18,3 has two columns, the firsticolumn containingthe numhers'froin 1 to "lo and-the through the opening 'I S'i'indicates the dz Y the month, and 'forthe'secondhalf-of the month, the-number in the right llillTCl'CQlillllll visible through the opening 184 indicates the day of the month; The openinglSi is wide enough so that both columns are visible but the observer will of course know which column to'read. Q In order to return the card rack Had-and the indicating cylinder 183'when the pin 150 on the card rack 145 is ready to drop off from the-high point of the spiral cam 148, 1 provide, a coil tensionspring 193, having one end secured at 19 1 to the frame member 102 second. column containing the numbers'froin 17 to 31. For the first half of the month the nuinber'in the left'h'and co ui'nn visible and its-other end secured to the rock lever 188?, at 195, (Fig. 7).
' Ribbon feed,
Suitable mechanism, not necessary to be described, in detail, is
Serial way, this ribbon-feed mechanism comprises a pair of spools 1.961 and 197, (Figs. 5 and provided for slowlyfeeding the. ribbon 113 back and forth, this mechanismbeing described and claimed in my copending' application, 578,517,.filllduly -29, 1922. In a general- 8), 'to which theendsfof the ribbon 113 are 4 secured, andmechanism operable by the handle 112, for giving a step-by-step motion to one or thefother of the spools, the feed being automatically shifted from onespool to the other at the endofthe travel of theribbcn. Thismechanism comprises a link 198, (Figs. 8 and-12),p ivotally connected at 199 to a rearward extension 200- on the hand lever-126, and transmission mechanism from the link 198 to the riblionspools, whereby the desired operationof the ribbon spools is effected. r y
In order to 'givega general idea of the ,ar-
rangement, ill 1S here stated that the hammer and hammer con-trolling mechanism, the piv' oted card rest and the card holder are mounted betweenthe two; main side frame plates of the machine 102' and :103, these side frame plates being pro edwith hearings or supporting bearing rthe various operating parts. l
I In order to adjust the machine to take care
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553644A (en) * 1951-05-22 Time recorder
US2947817A (en) * 1955-09-26 1960-08-02 Gen Dynamics Corp Clock-calendar circuit
US3827058A (en) * 1971-07-09 1974-07-30 A Brener Punch-card time recording device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553644A (en) * 1951-05-22 Time recorder
US2947817A (en) * 1955-09-26 1960-08-02 Gen Dynamics Corp Clock-calendar circuit
US3827058A (en) * 1971-07-09 1974-07-30 A Brener Punch-card time recording device

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