US1334743A - engstrom - Google Patents

Description

]. ENGSTROM.

COMBINED ADDING MACHINE AND CHECK PROTECTOR.

APPLICATION man mma, 1916.

1 ,334343, Patented Mar. 23, 1920.

1 SHEETS-SHEET I.

l. ENGSTROM.

COMBINED ADDING MACHINE AND CHECK PROTECTOR.

urucmon FILED mus. I9l6- 1,334,743. Patented Mar. 1920.

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0 IIHIHIHI a mmmi I. ENGSTROM.

COMBINED ADDING MACHiNE AND CHECK PROTECTOR.

APPLlCATION FILED JAN. [3, 916.

1,334,743. Patented Mar. 23, 1920.

I SHEETS-SHEET 3.

fit torrwys I. ENGSTROM. comamzn ADDING MACHINE AND CHECK PROTECTOR.

' APPLICATION FILED MN'l3l ISIS. 1,334,743.

Patented Mar. 23, 1920.

7 SHEETS-SHEET 4.

flaw/2Z0)" a/z 72 I. ENGSTROM.

COMBINED ADDING MACHINE AND CHECK PROTECTOR.

APPLICATION FILED MNJS. IQIG.

Patented Mar. 23,1920.

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Wit/265666.- WZWM a I. ENGSTROM.

COMBINED ADDING MACHINE AND cnecx PROTECTOR.

APPLICATION FILED JAN-13,1916.

1,334,743. Patented Mar. 23,1920.

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l. ENGSTROM.

COMBINED ADDING MACHINE AND CHECK PROTECTOR.

APPLICAUDN HLED JAN-13,19l6- 7 SHEETS-SHEET I- UNITED STATES PATENT OFFICE.

IVAN ENGSTROM, or CHICAGO, ILLINoIs, ASSIGNOR zro HEDMAN MANUFACTURING COMPANY, or CHICAGO, ILLINOIS, A CORPORATION or ILLINOIS.

COMBINED ADDING-MACHINE AND CHECK-PROTECTOR.

Application filed January 13, 1916. Serial No. 71,831.

7 '0 all whom it mag concern Beit known t at I, Iv N ENcs'rRorI, a citizen of the United States, residing-at Chicago, in the county of Cook and State of Illinois, have invented certain newlandusefu] Improvements in .Combined Adding Machines and Check-Protectors, .oflwhich the following is a full, clear, concise, and exact description, reference be ng had to the accompan 'ng drawings, forming a part of this specifi dation.

My invention relates to a combined adding machine and check protector and has for its object certain improved constructions and modes ofoperation which will be more full setforth hereinafter.

T e device of myinvention consists generally of a stationary base member to which is pivoted a housingior easing'arranged to contain the several printing segments for printing or cutting upon a check any desired amount. The base; member is provided with an upwardly extending pedestal to which is pivoted an operating lever connected by means of a link to the above mentioned casing, and arranged when operated to bring the casing to other with the several segments against a p aten carried by a stationary base. The housing carries a totalizer,

or adding attachment which is operatively connected with the several segments above mentioned, so that any number set up by the segments in order to print a number upon a check may be carried upon operation 0 the operating lever, into the'totalizer.

A. novel feature of my invention is the provision of mechanism whereby the totalizer may be used in conjunction with the check protector so that a total is made of the checks protected, or the check protector may be used independently of the totalizer, so that the checks which are stam Jed are not included in the total' or are not added into the numeral wheels, or the device may be used as an adding machine proper, that is, certain numbers may be set up by the setting keys and added into the tota izcr with out necessitating operation'of the check protecting means." Iprovide simple and quickly operated means for causing connections and disconnections between the various parts to facilitate the converting of the device of my invention into any one of these three machines.

Each of the segments which contains the Specification of Letters Patent. Patented play, 23, 1920,

printing type, carries a segmental Geneva gear which is stamped of sheet metal.,a 1 id Geneva gears cooperate with Geneva inions which act to transmit motion from t e segmental gears to the totalizer. Since these segmental gears are stamped of sheet metal the cost of manufacture 1s greatly reduced. The Genevagear segements and pinions cooperating therewith are arranged so thatlthe segmental ,gears are allowedto have a certam rotative movement, independent-of the pinions. The segments, or atleast some of them, are provided with indicatin numerals.

running from zero to nine, inclu mg a dol-. lar sign, which is normally in register with the sight opening which permits the operator to ascertain the position to-which the several segments have been set. In moving the segment from the dollarsignto the zero position, movement of the segment must not be imparted to the cooperating pinions and thus to the totalizer, and I have, therefore,

provided a means whereby the segmental 'theform of a gear which is rotated when a number is carried into the totalizer. Cooperating with this gear is a pawl, somewhat similar to an esca ement used in con nection with clocks. his pawl, however, hasno time interval involved in its 0 ration. When the above mentioned gear 1s rotated the pawl is caused to reciprocate into and out of engagement with the' several teeth of the gear. When the machine'isoperated at a low speed this reciprocating pawl operates very slowly, thus requiring very little force to act upon the ear to rorigidly secured j thereto. These segmental late the same. When, however, t e gear is rotated at a higher rate of speed the pawl will be moved mto and out of engagement with its teeth at a corresponding rate of speed. As the pawl is moved into engagement with. the gear it attains a certain 1nertia which must be overcome before the awl is moved in the opposite direction. [he overcoming of this inertia consequently places a load upon its cooperating gear tending to prevent its rotation. As the velocity of the gear is doubled the force required to reciprocate the pawl is increased by the square of the velocity; in other words, four times the force is required to reciprocate the governor pawl when the velocity of its co- 0 eratin g g'ear is doubled. It will be seen, tierefore, that I provide means for automatically placing upon the operating mechaanisrn a load when the machine is operated above a predetermined s eed. When the speed 'is increased, the 10a is increased, and when thespeed is decreased, the load is decreased, thus preventing the operator from o crating the machine too fast and probalily breaking or distortin some of its parts. These overnors di erentiate from a constantfriction drag, in that such a drag exerts upongtheoperating mechanism a load which" is the same whether the machine is operatedat a high or low rate of speed. These governors are new, so far as I am aware, in connection with all kinds of machinery in which a governor or speed limiting device is to be employed.

A: further feature of my invention is the mechanism which goes to make upthe totalizer, the parts being arranged so that practically all of themcan be carried upon two supporting shafts and thus enable the device 'to be placed in a very small space.

To reset the numeral wheels to zero position, when this is desired I provide novel mechanism whereby-this may be done in one o eration and by the manipulation of a sing e member or unit. This device consists of a re-setting lmob' which has a pin and slot connection with the numeral wheel shaft so that the knob may have a certain longitudinal'mo'vement relatively to the shaft, spring means being employed to hold it in a certain side-wise position. This knob is provided with a stop which normally abuts against a sto carried by the casi of the machine, an is normally held in this position. In re setting the numeral wheels, the knob is moved longitudinally of the shaft to disen gage the stops and then rotated, in this instance ina clockwise direction to effect resetting of the numeral wheels. After the knob has been given a slight rotation that is enough to prevent the stops from interfering, the knob may be moved back by its spring and the rotation of the knob continued, regardless of the longitudinal position of the knob relatively to the shaft. hen the numeral wheels have all been returned-to zero the sto s again cooperate and retain the knob inloc ed position.

When the numeral wheels are rotated to their zero position they Ipass through a certain portion of the cyc e where the carryover between the numeral wheels is effected. In order to prevent the carry-over mechanism from being placed in a position to operate upon the next succeeding stroke of the adding machine actuating lever, I provide means operated by the resetting button for causing all of the carry-over mechanism to be rendered inert temporarily, that is, until the numeral wheels have been reset. After the wheels have been reset the carry-over mechanism is again placed in a condition to carry out its function.

To necessitate a complete operation of the mechanism for adding, or for stamp' a check, or for doing both, I provide a r adapted to cooperate with a flip-over pawl which pawl permits movement of therack in but one direction, until the rack has reached a certain predetermined position, whereafter the rack may bemoved inanopposite direction and in this direction only, until it reaches a second predeterminedosition where the flip over awl permits 1; e rack to again return. This pawl is in the form of two tooth arms, one of the armscoiipera'ting with the teeth of the rack at a time. The rack is Cpermitted to move a short distance beyon the point where the flip-over pawl causes one tooth to disengage the rack and the other tooth to engage, so that this additional movement provided for the actuating lever takes care of errors or in accuracies in manufacture.

As herein before referred to the housing or casing is pivoted to the base and is arranged by means of an actuating lever to be moved downwardly against the base. In order to prevent any distortion 'of the mechanism due to the housing bearing upon the base with too great a force, I have provided a positive stop for the actuating lever which stop permits the housing or printing segments contained therein to have the necessary engagement with the base member. but prevents the segments from being forced downwardly beyond a certain point.

. In conjunction with the speed governors which act directly upon the totalizer I; rovide a centrifugal friction governor, w ich is o erate'd directly by the actuating levers of t e machine to serve also as a checkfor.

preventing too rapid operation of the machine.- The centrifugal members. are adapted to frictionally engage a hollow cylindrical member, the greater the speed of operation of the machine, the greater clearly reveal the construction;

enoe-is made to the accompanying drawings wherein, V Figure 1 is a side, elevational view of theg'devieeof my invention; 1

2 s avertical sectional view of Fig.

1, some ofthe :parts being broken away to- .more clearly reveal the construction;

Fig.3 is a front elevational view of the machine, some of the parts being broken away and lllu'strated In section to more Fig. .4 is. a front elevational Fig.- 6 1s a vertical .cross sectional view taken along the lines 66 of Fig.5 looking win-the? direction indicated by the arrows;

Figr? isa cross sectional view taken alongzthe line +7015 Fig. 5'and looking in the direction indicated by then-arrows;

.Fig.-E- 8.,is a cross-sectional view taken 'alon the line 8'8 of Fig. 5. and. lookingin' the irection indicated by the arrows;..

Fig. 9 is a view similar to Fig. 8-showing the cam which'is employed in connection with the highest numeral wheel, this figure also illustrating in dotted lines .the shapes of the cams associated with the numeral wheels disposed between the highest and lowest order numeral wheels;

Fig. 10 is a cross-sectional view of the totalizer mechanism. This view being taken along the line 1010 of Fig. 4 and looking in the direction indicated by the arrows; 1% 1. a

Fig. 11- is a rear view of the mechanism illustrated in Fig. 10;

Fig. 12 is a. vertical sectional view of a portion of the upper shaft of the totalizer mechanism, this view being taken along the line 12.12 of Fig; 11 and looking in the direction indicated by the arrows;

Fig. 13 is another view of the mechanism illustrated in Fig. 10, the operating parts being here shown, in positions different from those illustrated in Fig. 10;

Fig. 14 is a vertical cross sectional view of the upper shaft of the totalizer mechanism, illustrating a numeral wheel and devices whereby the numeral wheel may be reset;

Fig. 15 is a fragmentary detail view of the actuating lever for causing the housing to move toward the stationary base, and devices connected with the lever for operating the totalizer when this is desired. This view is taken along the line 1515 'of Fig. 16;

Fig. 16 is a fragmentary cross-sectional view of the mechanism illustrated in Fig. 15, this view being taken along the line 1616 of Fig. 15 and along the line 16-16 of Fig. 1;

Fig. 17 is a cross sectional view of the view of the totahzer mechanism'which mountedat' centrifugal speed govemorcooperating with the actuating levers;

Fig. 18 is a verticalcross-sectional view of the ratchet mechanism for causing the centrifugalmeansto operateonly in one direction; a I

Fig. 19 is a perspective view of the sheet metal ;;Geneva gear segment employed in connectionrwith each of the printing segments;

Fig. 20isaadetail viewof the numeral wheel .of-highestorder;

Fig: 21 'sa detail cross-sectional View of a 'portion of the mechanism for rendering-the carry-over devices ofthe totalizer temporarily inoperative r r Fig. 221s a vertical cross-sectional: view of the Ire-setting knob;

Fi .23 is .a fragmentary detail View of the rackand! zflip-over pawl for necessitating a complete operation of themachine; and a i Fig. 24 is a detail iew of the mechanism employed-i'for ieausing acharacter to be pr nted immediately adjacent to the left hand end-of a numeral or character which is printcd uponthe'chck.

Similar characters of --refeience refer to similarparts throughout'the several views.

Referring first'to Fig. 1, 25 illustrates the stationary base and 26 the movable housing or caslng whichi's pivoted at 27 to lugs extending upwardly from the base. The base'25 has an upwardly extending pedestal '28 *to which is pivoted at 29 an actuating lever 30 provided with a handle portion' 31. As illustrated in Fig. 2 the housing 26 carries a channel 32 which supports a shaft 33, to which is secured one end of the link 34-, the upper end of the link is pivotally connected at 35 to a forwardlyextend ing portion of an actuating lever 30. A second link 36 is provided,which is somewhat similar to the link 34, as illustrated in F ig. 16. From the construction thus far described it will be s'een"that upon downward movement of the lever 30 the housing 26 will be caused to rotate upon its pivot 27 toward the base 25. The pedestal 28 extends upwardly through an aperture in the housing as illustrated in Fig. 2. To return the housing to its normal position after it has been moved downwardly, I provide a pair of springs, one being illustrated in Fig. 2 at 37, which has its central poition extending 'around the pivot shaft 27, its lower end abutting against the base member and its upper end against abal' 38 connecting the side walls 39 and 40 of the casing.

Secured in the side walls 39 and 40 is a shaft 41 upon which is rotatably mounted a luralitv of printing segments illustrated at 42, 4a, 214, 4.5, 46, 4.7- and 48 (Fig. 3), also provided with serrated type 51, which when moved to operative position engage a stationary platen, or plate, 52 carried by the base. Each of the printing segments is provided with an upwardly extending handle or finger piece 53, so as to permit any one of the segments to be set. Detent mechanism 54: adapted to engage with the notches 55 is provided for each of the segments, spring 56 serving to hold the detent in engagement with the printing segment. Each one of the finger pieces53- carries a Geneva. gear segment ,57, this segment being illustrated inperspective in Fig. 19. 'Each one of these segments cooperates with a Geneva pinion 58 rotatably mounted upon a shaft 59 carriedi bysuitable supports extending from the walls of the casing.

Each one of the Geneva gear segments 57 is formed of sheet metal and bent at an angle to form two walls 57 and 57 disposed at right angles to each other. The wall 57 is cut away at portionsillustrated at 6060 to provide spaces for the wide teeth of the Geneva pinion 58. The wall 57 has stamped therefrom a plurality of fingers 61 which extend outwardly parallel to the wall 57" to engage the narrow teeth of the Geneva pinion 58. When the Geneva segment is in its normal position, that is, the position illustrated in Fig. 2, one of the teeth of the pinion will extend downwardly parallel along the side of the wall 57 the two adjacent wide teeth riding upon the periphery of the se nent. It will be seen by referring to this gure that the Geneva segment is permitted to have a certain rotative movement independent of the Geneva pinion. The fingers 61 and apertures 60 provided in the Geneva segments are spaced according to the positions of the type 51, so that each time one type is advanced two of the fingers 61 will be advanced one step to impart to the pinion 58 one-fifth of a revolution. In order to obtain this result I provide a lost motion connection between the short teeth of the pinion 58 and the finger 61. It will be seen, therefore, that by setting a printing segment from its zero position to its one position the pinion 58 will be given a two-tenths revolution, by moving the segment two points the pinion will receive a four-tenths revolution, etc.

Eachone of the Geneva pinions 58 meshes with a cam gear which is rotatably mounted upon the shaft 71, supported in the end walls 39 and 40. These cam gears consist in a gear provided with twenty teeth, as illustrated in Fig. 7, and with a cam surface 7.0" which is arranged to be engaged by a pin 72 carried by a pawl 73 pivotally mounted at 74 on a disk 75. These disks 75 are of different shapes, as will be presently pointed. out, but the cam gears 70 are simi- 1211' throughout the totalizer. Disposed adjacent to each of the disks 75 is anintermediate-gear 76 which meshes with a gear 77 rigidly secured to a numeral 'WhGBl. The intermediate gears 76 are all provided with two ratchet wheels 78 and 79', except the intermediate gear 76, which is associated with the numeral wheel of lowest order. This gear is provided onlywith ratchet wheel 79; Each of the disks 75' is keyedat 80 to the shaft '71, so as to rotate therewith. Mounted upon the extreme right hand end of'the chart- T1 andfkeyed thereto is'a pinion 81 meshing with a gear segment 82 pivotally, but loosely mounted. upon the shaft 33. The pinion 81 contains 'nlneteeth and a blank so that the segmentmay have movement relative to it when in either extreme position. The'shaft 33 has an arm 83, illustrated in dotted lines in Fig. 1'5, which ex-I tends forwardly-alongtheside of the gear segment 82, the arm- 83 isiprovided wiithI-an aperture 84* which arranged to register with an aperture 85", provided in the gear segment. A connectintgl'pin86is employed to extend' through bo 0f-these aipertures to connect the arm 83 and'segm ent 82 when this is desired. The shaft 33 extends outwardly and has loosely mounted thereon a handle 87 which carries a connector 88 pivoted at 89. This connector 88 has a bifurcated extension 90 which extends between enlarged portions of the pin 86, so that movement of the connector 88 in a count-er clockwisedirection (Fig. 16) causes the connecting pin 86 to move to the left to connect the gearsegment 82 and the arm 83. The right hand end of the pin in" this figure is supported by an ear 91 which extends upwardly from the crank 87. A spring 92 is coiled around the shaft 33 and has oneend attached to the gear segment 82, so that it normally is held in the position illustrated. If the connecting pin 86 is in the position illustrated in Fig. 16 and the crank 87 is pulled upwardly the gear segment 82 will be moved in a clockwise direction (Fig. 15). lVhen the connecting pin is in this position the lever 30 may beoperated without in any way causing movement of the gear segment 82. If, however,the connector 88 is moved to the position illustrated in dotted lines the pin 86 will serve to connect the gear segment 82and the arm 83, so that upon downwardmovement of the-lever 30 the shaft 33 will be given a part rotation in a counterclockwise direction, (Fig. 15) thus imparting to the gear segment 82 a similar movement. Since the gear segment 82 is adapted to mesh with the pinion 81, this pinion will be rotated in a counter clockwise direction on the upward movement of these'gment 82 and a clockwise direction upon the downward movement thereof. The actuating lever 30 has its lower end connected by means of a spring 93 to a post 94 carried by the pedestal 28.

Pins 72 which are carried by the pawl 73 are normally in the position illustrated in F ig. 7, extending between the ends of the cam 70. The pawl 73 is normally in the position illustrated in Fig. 6 ready to enage the ratchet wheel 79. If the cam gear (0 is rotatedvby means of its associated type segment the cam surface 70 will be advanced ahead of the pin 72 and held there 3 until the type segment is again moved to zero. position. .If we assume that a gear-70 is advancedso that it is desired to add four into the totalizer the end 95 of the cam surface will be moved four steps ahead of the pin 72 when, therefore, the shaft 71 is rotated in the direction indicated by the arrow the pawl 73 will engage the ratchet 7 9 and cause rotation of its associated intermediate gear 76. As soon as the pin 72 reaches the incline 95 of the cam 7 0 the engaging end of the pawl 73 will be drawn upwardly so as to disengage the pawl from the ratchet wheel. The pin 72 will then ride upon the outer-periphery of the cam 78 until the shaft 74 a has been given a complete rotation,

whereupon it will be returned through the same path. As has been pointed out the intermediate gears 76 are directly connected with the numeral wheels so that upon rotation of these intermediate gears the numeral wheels are rotated and thus the numbers set up by the finger pieces 53 are recorded.

The carry-over mechanism employed for causing a numeral wheel of higher order to be advanced one step when the numeriil wheel of the next lower order passes through the zero point consists in the mechanism illustrated in Figs. 10 to 13 inclusive. Each of the disks 75, except the one connected with the numeral wheel of lowest order is provided with a cam groove 96 in which rides a pin 97 connected to the lower end of an arm 98 mounted upon the upper shaft 99. Each one of the arms 98 carries an enlarged portion100 to which is pivoted at 101 a latch 102 which normally looks a pawl 103 in the position illustrated in Fig. 10. The pawl 103 is pivoted at 104 to the arm 98 and is provided with a spring 105 acting between the pawl and the member 100 to tend to rotate the pawl 103 in a' the ratchet 78 when the ratchet has been advanced the required amount. The latch 102 has acting upon it a spring 108 which tends to rotate the latch in a counter clockwise direction (Fig. 11). The latch 102 has a cam 109 extending toward its associated numeral wheel and is'arranged' to be operated upon by a pin 110 carried by the numeral wheel.

Rotatably mounted on the member 100 is a lock 111 which has an extension 112 resting against the cam 109.- This lock also carries an arm 113 to which is pivoted at 114 trip finger 115. This finger 115 has a lug 116 to which is secured a. spring 117. The spring 117 coils around a grooved member 118 and is attached at 119 to the arm 98. The trip finger 115 carries a stop 120 abut ting against a pin 121 carried in the arm 113. The spring 117 serves two purposes, one to tend to rotate the lock 111 in a clockwise direction (Fig. 11), and the other to tend to rotate the trip finger 115 in a counter clockwise direction against the pin 121.

The operation of the carry-over mecha-- by means of the gear segment 82 ina direction indicated by the arrow War, the carry-over mechanism will be moved to the position illustrated in Fig. 13. The pawl 103 will be moved toward the ratchet 78, when the pin 97 carried by the arm 98 rides outwardly in the groove 96, but the tooth 106 is not moved'down far enough to cause it to engage one of the teeth of the ratchet gear. en, however, the numeral wheel 125 passes the zero point the pin 110 is moved in the direction indicated by the arrow 5 in Fig. 10 and engages the cam 109 to move the latch 102 to the position illustrated in dotted lines in Fig. 13. When the latch is thus moved the pawl 103 permits the spring 105 to move it downwardly into engagement with the ratchet 78. The ratchet 78 with which it is arranged to be connected is associated with,. or is a. part of the intermediate gear which operates the numeral wheel of next higher order. When the pawl 103 is thus released it assumes the position illustrated in Fig. 13. As the disk 75 is rotated in the direction indicated by the arrow a, (Fig. 10) the tooth 106 of the pawl is moved first to the right and then When the pin 97 again reaches the position illustrated in Fig. 10, which occurs when the shaft 71 has made one complete revolution, the tooth 106 of the pawl is moved to the left until it clears the upper face of the tooth 126. whereupon, the spring 105 causes the tooth 106 to again drop and engage this tooth 126. Upon the return movement of the disk 75 (that is in the direction indicated by the arrow 0 in Fig. 10) the pin 97 is moved along the portion 127 of the groove 96, whereupon the tooth 106 is moved to the right in Fig. 10. This movement of the tooth 106 imparts to the ratchet 78a movement which is vone-tenth of 3, revolution. When the ratchet has made this step the face 107 of the pawl engages the upper face of the next succeeding tooth of the ratchet so that the tooth 106 is positively moved out of the path of the ratchet. When the latch 102 was moved to the position illustrated in dotted outline, the extension 112 of the lock 111 was permitted .todrop, due to t-hespning 117 acting upon it. This drops to a position where the extens'ion-112 h its the stop pin 128 where it will be held. When the extension 112 is moved against this stop pin the beveled portion carried thereby will extend under and engage the cam 1090f the latch-102 and thus securelylo'dk the some in its upper position away from (the pawl 103. The dropping of the arm 11 3 necessarily causes the trip ifinger'115 to drop also into the path of :a. pin 129 carried by the disk 75. If when the disk 75 is moved first in the direotion indicated by the arrow a, pin 129 engages the trip finger l lfi, the trip finger will merely oscillate upon its pivot 114, but cause no movemeirt oftlielock 111; When, ihoweizer, the disk 75 is moved 'backagain,

*that is, in the-direction indicated by arrow c''thepin '129 wil'l engage the straight side of the finger llo and thuslift the member 111, due to the and stop connection 120 and 121. Whenthe lock 111 is thus returned to its original position the latch 102, is, by means 'of the extension 112 of the lodk and the cam 109 of the latch, lifted so that when the extension 112 clears the cam 109 and assumes the position illustrated in Fig. 11, the latch 102 drops downwardly to a in hold the upper end of the pawl 103.

'e several disks 75 are shaped as illustrated in Fig. 9. The disk associated with the first numeral wheel is illustrated at 751, the one cooperating withthe second at 75- 2, with the third at 753, fourth 75--4, fifth 755. and the sixth at 7 5-6. The disk 75-2 is one-te'ntlrof the circui'nference smaller than the disk 75-1, the disk 75'3 one-tenth smaller than the circumferenoeof the disk 7 5-2, and so on. The reason for this construction is that the carryover devices are caused to operate one after the other instead of all simultaneously if each numeral wheel is in a carry-over condition.

Extending parallel to the shaft 71 and inimediately behind the same in a shaft 1330 upon which are mounted a number of reciprocating speed governor pawls 131 each arranged to have angular movement relative to the shaft 130. Each of the pawls 131 comprises an upward arm 132 and a lower arm 133. The upper arm being provided with a. tooth 134 and the lower arm with a tooth 135. Each one of the pawls 131 is disposed directly behind one of the interme- 'stationary and cated. in a correspondingly faster rate of speed and this produces'a greater load tending to prevent rotation of the gear. The

teeth of the pawl 132 are beveled, as indicated, so that engagement of the gear teeth with the same will cause alternate inward and outward movement of the pawl arms. By means of this construction I obtain simple means-tor automaitically placing upon the machine a load when the operator attempts to operate the machine above a. .predetermined speed? I will now describethe mechanism I employ for resetting the numeral wheels to their zero position. Shaft 99 has a slot 136 running the entire length of the shaft. Each of the numeral wheels 125 has pivoted thereto at 137 a pawl 138 which is held in the position illustrated in Fig. 14, by means of the spring 139. When the numeral wheel is rotated by means of the totalizer mechanism the pawl 138 is moved away from the groove 136 in a counterclockwise direction (Fig. 14), so that the groove does not in any way interfere with this operation; The shaft 99 is normally I is supported by the end plates 39 and 40. The right hand end of the shaft 99 extends throughthe plate 40 and carries a pin 140 which extends out into a slot 141 provided in a re-set knob 142 which is mounted on the end of the shaft. The knob 142 is provided with a chamber 143' into which extends a compression spring 144 actin between the knob and a screw 145 carried the shaft. The knob 142 is permitted to ave longitudinal movement relative to the shaft but not angular movement because of the pin and slot connection 140 and 141. The spring 144 normally holds the knob 142 in the osition illustrated in the drawings. The nob 142 has a stop 143 which engages a stop 144 carried by the side wall 140. In resetting the numeral wheels the knob 142 is pulled outwardly to disengage the stops 143 and 144 and then rotated in a clockwise direction. After the stop 143 has passed the stop 144 it is no longer necessary for the operator to hold the knob 142 against the tension of the spring 144, but may permit the spring to act to hold the knob against the side wall 40. As the knob 142 is rotated the shaft is rotated in a counter clockwise direction, as indicated in Fig. 14. As this shaft is rotated the pawls 138 will fall into the groove 136 when the groove reaches the pawl and thus return the numeral wheels to their zero positions.

To temporarily place the carry-over mechanism in an inoperative position while the numeral wheels are being re-set I provide a disk 150 rigidly secured to the shaft 99 and which is cut away at 151 into which cut away portion extends the upper end of a bell crank lever 152. This lever is held in the position illustrated in Fig. 21 by means of a spring 153 which encircles the shaft 99 and which includes a spring convolution 154. The lever 152 is pivoted to a rod 155. The lower end of the bell crank lever 152 is provided with a number of arms 156 and 157, one arm 156 for each of the lifter arms 113 and one arm 157 for each of the pawls 103. When the disk 150 is in the position illustrated in Fig. 21 the. arms 156 and 157 are in the position illustrated in Fig. 10. When, however, the shaft 99 is rotated b means of the re-setting knob 142 the disk 150 causes the bell crank lever 152 to swing in a counter-clockwise direction (Figs. 10

and 21). This swinging will cause the arm 156 to slide in under the arm 113, and the arm 157 to slide in under the face 107 of the pawl 103. Then the bell crank lever is moved to this position there is no possibility of the carry-over mechanism to be set because the arms 156 and 157 securely hold the pawl and lifter against downward movement. After the disk 150 has been given. a complete rotation the notch 151 will again accommodate the outer end of the upper lever arm and permit the arms 156 and 157 to move away from the carry-over mechanism. The stop 143 will prevent rotation of the shaft 99 in one direction, and the side 158 of the notch 151 will prevent rotation of the shaft in the opposite direction. The notch 151 is beveled so that the disk can be rotated in but one direction.

The numeral wheel of the highest order is operated through the numeral wheel of next lower order, by means of a disk 160 which is attached to the numeral wheel of lower order. This disk carries one tooth which when its numeral wheel passes the zero point meshes with at Geneva gear 161.

This Geneva gear meshes in turn with the.

gear 162 (Fig. 20) of the numeral wheel of highest order. The gear 162 is frictionally connected with its numeral'whecl by means of a flat spring 163 which is riveted at 164 to the numeral wheel. This spring lies in a recess, as illustrated. The free end of the spring 163 contains a head 165 which is arranged to extend into any one of ten apertures 166, evenly spaced around the gear 162. This frictional connection between the numeral wheel and the gear causes the numeral wheel to advance one step whenever the gear is advanced. In re-setting, the reset pawl contained by this numeral wheel, which pawl is similar in all respects to the pawl illustrated in Fig. 14, the numeral wheel is rotated in unison with the re-set knob. Since the gear 162 is, however, tightly held by means of the Geneva gear 161 and the one tooth disk 160, the spring .163 will be moved into its recess to disenga e its head 165 from the apertures 166 so that the numeral wheel can be re-set.

Each one of the intermediate gears 76 is provided with a sprin 170 having its lower end secured to the casing and its upper end looped so as to extend between two of its teeth. The purpose of these springs are to frictionally hold the intermediate gears and thus the numeral wheels in any position to which they may be moved. The cover 171 is provided with sight openings 172 through which the numbers of the numeral wheels are visible.

The gear segment 82 has an upwardly extending arm 173, to which is pivoted at 17 4:

a gear rack 175. This rack extends downwardly from the arm 173 and has a strip 176 disposed at right angles to the plane of the arm 173, which carries a pluralit of gear teeth 177. These gear teeth, as ilustrated in Fig. 17, mesh with a pinion 178 rotatably mounted upon a shaft 179, which shaft extends through a slot 180' provided in the rack 175, thus holding the teeth 177 carried by the rack into engagement with the pinion 178. The pinion 178 is secured to, or forms part of, an internal ratchet 17 8 between which, and a worm wheel 180, a dog 181 acts. This dog is pivoted at 182 to the worm wheel 180 and ]S by means of a spring 183 normally held into engagement with the teeth of the internal ratchet 178'. The worm gear 180 meshes with a worm .184 carried by shaft 185 hearing at 186 and 187 in the casing or support 188. This entire governor mechanism is preferably made as a unit, as illustrated,

so that it can by means of screws or similar devices be easily secured to the housing 26. The lower end of the shaft 185 carries two spring arms 189 and 190, the lower end of each spring arm carrying a weight 191. These weights 191 are disposed within a cylinder 192 carried by the support 188, and are rounded on their outer surfaces as illustrated.

When the segment 82 is moved upwardly the rack 175 is moved downwardly and the pinion 17 8 moved in a direction indicated by the arrow. Due to the dog 181 rotation will be imparted to the worm wheel 180 which upon rotation rotates the shaft 185. The rotation of the shaft 185 will, due to centrifugal force, force the weights 191 outwardly against the inner face of the cylinder 192. The friction between the member 191 and the cylinder 192 will depend upon the rate of speed at which the shaft 185 is driven, that is, for low speeds there will be very little friction and for high speeds a considerable amount. Upon the return stroke of the rack 175 the inion 178 will be rotated in a direction reverse to that shown by the arrow, whereupon the internal ratchet will merely ratchet past the dog and have no effect on the worm oted at 209 to the wall 40 and is notched at 210 and 211, into one of which is arranged to extend a detent arm 212 pivoted to the easing at 213. The spring 214 serves to hold the detent in the position illustrated in the drawings, that is toward the flip'over pawl. The rack 200 carries two pins 215 and 216, one disposed at each end of the series of teeth 205. Extending between the pins 215 and 216 and adapted to be operated thereby is an arm 217 extending from the flip-over pawl 208. The rack is cut away or beveled at 218 immediately adjacent to the pin 216 and at 219 immediately adjacent to the pin 215, the function of which will be presently explained. When the crank 87 is moved upwardly, or to the position illustrated in dotted lines in Fig. 23, the rack 200 is moved to the position illustrated in dotted lines in this figure. As the teeth 205 move upwardly past the flip-over pawl the tooth arm 206 will ratchet into and out of engagement with the teeth. Any tendency to move the rack 202 downwardly while the arm 206 is in engement with the teeth 205 will tend to rotate the flip-over pawl in a counter-clockwise direction (Fig. 23) and thus securely' lock the rack against this downward movement. When the crank 87 reaches the position illustrated in dotted lines the pin 216 will engage the arm 217 and impart to the flip-over pawl a slight rotation to a position where the detent 212 will engage the notch 210, as illustrated in dotted lines. This movement of the flip-over pawl will cause the arm 206 to disengage the teeth of the rack and move the arm 207 into engagement therewith. It is to be noted that when the flip-over pawl is rotated by means of the pins 215 and 216 the arm which is brought into engagement with the rack is not caused to immediately engage the teeth thereof. The arm, either 206 or 207, will extend downwardly as illustrated alongside of the beveled portion 218 or 219, but will not have contact therewith. This construction successfully prevents wearing of the engaging faces of the arms 206 and 207. Upon the downward stroke of the crank 87 and rack, the pin 215 will upon the returning of the rack to its normal position rotate the flipover pawl again to the position illustrated in full lines. Since the crank 87 is connected with the segment 82 and with-the shaft 33, when the adding operation is to be done by means of the actuating lever 30, the crank 87 will be rotated upon a downward movement of the lever 30 and thus operate the rack flip-over pawl mechanism.

The pedestal 28 is formed into a channel, as illustrated in Fig. 15, having its front wall cut away at 225 to provide a positive stop for the actuating lever 30. The base 25 is constructed of sheet metal and is arranged to have a slight spring so that when the type segments are moved against it, the base member may move with the segments and not form a dead stop therefor. To prevent distortion of the base or mechanism contained in the housing 26, I provide the positive stop 225 which when the lever 30 is moved to its down position engages the lower edges 226 of the lever. The lever 30 has a channel cross section as illustrated in Figs. 3 and 16. The edges 226 engage the stop 225 immediately after the printing segments touch the platen 52.

The Geneva gears 57 have at their forward end a strip 230 which contains numerals corresponding with the type 51 and which are exposed through a sight opening 231 provided in the front wall of the casing. This sight opening is immediately adjacent a slot 232 through which the finger piece 53 extends. The stationary type member 49 contains the letters CTS, and the stationary member 50 the letters AND. Carried by the shaft 41 and bya rod 41',is a support 233 upon which is slidably mounted a block 234. This block, as illustrated in Fig. 24, carries a T shaped groove 235 into which extends a T 236 of the support 233. The support 233 has aplurality of forwardly extending plates 237, to which are pivoted at 238 four stop bell crank levers 239, 240, 241, 242. The lever 239 has its upper end extending into a slot 243 provided in the segment 48. The bell crank levers 40 extend into a similar slot in the segment 47, the lever 241 into the segment 46, and the lever 242 into the segment 45. The lower ends of the levers 239-242 fit between blocks 244 which blocks prevent distortion of the lower ends of the levers. Carried by the upper face of the block 234 is a pin 245 which normally clears the lower ends of the levers, as illustrated in Fig. 2. The support 233 has secured thereto a plate 246 cut away in portion to form four downwardly extending spring arms 247, one, for each of the bell crank levers. The tendency of these spring arms is to rotate the levers in a counterclockwise direction (Fig. 2). When the printing segments are in, their normal position, as illustrated, this rotation is prevented by the lower wall of the slot 243 which is engaged by the upper arms of the bell cranks. The upper arms of the bell crank levers 239 to 24-2 have downwardly extending engaging ends that portion of its associated arm which passes through the other segments. When, however, a printing segment is set its corresponding bell crank will be rotated by means of the spring plate 246. For example, if the segment 45 is set the lower end of the lever 242 is swung inwardly into the path of the pin 245. Rigidly secured to the base member 25 is an arm 250 which has secured at its forward end a link 251 carrying an inking pad 252. This construction is similar in all respects to the construction illustrated and claimed in my Patent No. 1,242,162, Oct. 9, 1917, and it is not thought necessary to describe this construction here. It will suflice to say that when the casing 26 is moved downwardly the link 251 will move the inking pad away from the printing segments so as to permit the segments to engage the platen. The arm- 250 is slotted at 253 to be engaged by a pin 254 carried by the lower end of the lever 255. This lever is pivoted at 256 to the side wall 39 and extends forwardly to connect with a spring 257, as illustrated in Fig. 24. This spring is formed into the shape of a bell crank lever and has its lower end connected with a sliding block 234. The spring 257 is coiled at 258 through which, coil extends a pivot screw 259 carried by the support 233.

The operation of this mechanism is as follows:

Assuming that the segment 45 has been moved the bell crank lever 242 will be swung inwardly so that its lowerend is in the path of the pin 245. As the housing 26 is moved downwardly and since the arm 250 is stationary so far as the housing is concerned, the lever 255 will be given a counter-clockwise rotation (Fig. 2). This movement of the lever will move the upper arm of the spring 257 toward the lower arm which is connected with the sliding block 234, thus placing a tension in the spring, tending to more the sliding block toward the printin segments. As there is nothing in the pat of the pin 245 except the lower end of the lever 242 the block will be moved in a direction toward the printing segments until the pin 245 engages the lever 242. When this occurs the edge of the block is immediately adjacent the 270 whigh extend below.

moved printing segment of highest order. The block 234 contains the characters Pay it and thus prints this character immediately adjacent the number of the highest significant character. It is to be noted that the block 234 in no way engages the printing segments, so that there is no tendency to distort or bend the segments, all of the tension of the spring 257 being taken up by one of the bell crank levers. In moving the housing upwardly the spri 257 is a ain returned to its original position so fiiat the sliding block is again returned to the position indicated in Fig. 3.

Having thus described my invention, what I claim and desire to secure by Letters Patent of the United States is:

1. A combined check protector and adding machine comprising, a plurality of movable printing members for printing the amount of each check, finger pieces for setting the members, means for actuating the printing members to effect the printing operation, an addin attachment connected with the printing members, devices for causing the adding attachment to total the amount of the checks protected by said printing members simultaneously with the o eration of said actuating means, and mec anism for operating th adding attachment to total any amount set u by the finger pieces without actuating said printin members.

2. In a combined chec rotector and adding machine the combinatlon of a base, a housing pivotally mounted on the base, a plurality of printing members carried by the housing and adapted when moved against the base to print amounts, means for setting the printing members to any desired amount, and adding attachment arranged to be set but not actuated by said setting means, a lever for moving the housing and thus the printing members toward the base to effect" the printing operation, a crank carried by the housing and devices for selectively causin the a ding attach ment to accumulate ti amounts'to which said means has been set when the said lever is actuated or when the crank is actuated independently of said lever.

3. In a combined check protector and adding machine, the combination of a base, a housing pivotally mounted on the base. a plurality of prlnting memlbcrs carried by the housing and adapted when moved against the base to print an amount, means for setting the printin members to any desired amount, an adcing attachment arranged to be set but not actuated by said setting means, mechanism for moving the housing and thus the printing members toward the base to effect the printing operation, a, crank, and devices for selectively causing the adding attachment to accumulate the amount to which the said means hasbeen set when the said mechanism is actuated or when the crank is actuated independently of said mechanism.

4. In a combined check protector and; adding machine the combination of, a base, a housing pivotally mounted on the base, a plurality of printing members carried by the housing and adapted when moved against the base to print an amount, means for setting the printing members to any desired amount, an adding attachment arranged to be set but not actuated by said setting means, a lever for moving the housing and thus the printing members toward the base to effect the printing operation, a crank carried by the housing connected with the adding attachment and arranged when operated to total the amount set up by said means, and means for connecting the lever with the crank to cause operation of the crank when the printing members are moved to printing position.

.5. In a combined check protector and adding machine the combination of, a base, a housing pivotally mounted on the base and arranged to rock thereon, a plurality of printing members carried by the housing and adapted when moved against the base to print an'amount, means for setting the printing members to any desired amount, an adding attachment arranged to be set but not actuated by said setting means, mechanism for moving the housing and thus the printing members toward the base to effect the printin operation, a crank connected with the a ding attachment and arranged when operated to total the amount set up by .said means, and means for connecting the said mechanism with th crank to cause operation of the crank when the printing members are moved to printing position.

6. A device for protecting checks and adding the amounts thereof consisting in the combination of, a base. a housing pivoted to the base so as to rock thereon, a support carried by the base, a manually operated lever pivotally carried by the support, a shaft journaled in the housing and connected with the lever by means of a link, the actuation of the lever serving to rock the housing and oscillate the shaft, printing members carried by the housing, means for setting the printing members, and a totalizer, which is set but not actuated by the said means, operatively connected with said oscillating shaft whereby the totalizer is caused upon the operation of the lever to add the amount set up b the setting means.

7 In a combined a ding machine and check protector the combination of, a base, a housing pivoted to the base so as to rock thereon, a support carried by the base, 2.

manually operated lever pivotally carried by the support, a shaft journaled in the housing and connected with the lever by means of a link, the actuation of the lever serving to rock the housing and oscillate the shaft, printing members carried by the housing, means for setting the printing members, a totalizer which is set but not actuated by the said means, crank mechanism connected with adapted upon actuation to cause the totalizer to add the amount set up by the setting means, and devices for connecting the oscillating shaft with the crank mechanism.

8. A device for protecting checks and adding the amounts thereof consisting in the combination of, a base, a housing pivoted to the base so as to rock thereon, a support carried by the base, a manually operated lever pivotally carried by the support, a shaft journaled in the housing and connected with the lever by means of a link, the actuation of the lever serving to rock the totalizer and the housing and oscillate the shaft, printing members carried by the housing, means for settin the printing members, a totalizer, whic is set but not actuated by the said means operatively connected with said oscillating shaft whereby the totalizer is caused upon operation of the lever to add the amount set up by the setting means, and means for causing complete operation of the oscillating shaft in both directions.

9. In a combined adding machine and check protector the combination of, a base, a housing pivoted to the base so as to rock thereon, a support carried by the base, a manually operated lever pivotally carried by the support, a shaft journaled in the housing and connected with the lever by means of a link, the actuation of the lever serving to rock the housing and oscillate the shaft, printing members carried by the housing, means for setting the printing members, a totalizer which is set but not actuated by the said means, crank mechanism connected with the totalizer and adapted upon actuation to cause the totalizer to add the amount set up by the setting means, devices for connecting the oscillat ing shaft with the crank mechanism, and means connected with the crank mechanism for causing complete operation of the mechanism in both directions.

In witness whereof, I hereunto my name this 8th day of January, 1916.

subscribe A. D.

IVAN ENGSTROM.

Witnesses:

A, G. MCCALEB, ROBERT F. BRACKE.

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