US2305798A - Bookkeeping machine - Google Patents

Description

Filed Aug. 15, 1939 17 Sheets-Sheet 1 dal 443 M m 5 (Jai BOOKKEEPING MACHINE Filed Aug. 15, 1939 17 Sheets-Sheet 2 o oo tala/rm :evaenee W aan .ad Jay/4- Dec.V 22, 1942.

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17 sheets-Sheet 7 Dec. 22, 1942. J. soBxscH BOOKKEIING MACHINE Filed Aug. 15, 193s 17 Sheets-Sheet 8 De@ 22, 1942. J. SOBISCH 2,305,798

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BOOKKEEPING MACHINE Filed Aug. 15. 1939 1'? sheets-sheet 17 Patented Dec. 22, 1942 Booxxnnrnvo MAcmNE Johannes Sobisch, Bielefeld, Germany; vested in the Alien Property Custodian npplicsan August 15,1939, sensi No. 290,207

In Germany August 16, 1938 8 Claims.

The invention refers to a machine for entering bookkeeping, statistical or similar records, and, provided with a device for tabulating and writing numeric values.

ues, the cents values are written in groups of' two digits and are separately entered.

This subdivision has heretofore, for instance in l the case' of calculating-typewriting f machines, been carried out by forming the reading spaces by depressing spacing keys or by interposing point or comma characters. Machines capable of recording the totals have, with the exception of so-called comma spacings, no further 'subdivision of the written numeric values into 'reading groups.

Aside from this, these prior art constructions have the disadvantage that the subdivision of a numeric value in groups depends upon the attention of the operator. This occasionally produces disturbancesdue to the inattention of the operator by occasionally omitting the grouping spaces in tabulating a number of values, and thus produces an unattractive appearance of such tabulations. Especially the lack oi group spaces in automatic totaling renders the reading very difcult.

In bookkeeping and calculating machines the printing devices are provided with a ccrrespond-- ing rigid group division by providing reading spaces or rigidly inserted point Ior comma characters. 'Ihe division for numeric values-v indicating quantities, each containing three numbers, is partly accomplished by suspending for the time being the group of two numbers representing cent values whereby, however, two count- Y ing mechanism digits are lost.

According to the present invention these dis` advantages are avoided by providing a control device cooperating with the digit controller, which .device operates in accordance with a previously-made adjustment which automatically produces the insertion of reading spaces in all columns.

The invention is illustrated in ing drawings, in which v Figs. la, 1b, lc represent a. wiring diagram of the entire arrangement.

the accompanyi ('Ci. 191ml) Fig. 2 represents a supplement of the diagram, Fig. 1.

Figs. 3 through 5 represent a group of Contact cams for controlling certain contacts, shown in Fig. l, ln dierent operating positions. Figs. 6a, 6b represent the mechanism for transferring numeric values or' the like to the typing,

y calculating or other devices.

Figs. 7a, 7b represent thec'olumn width setting l 0 mechanism. i

` Fig. 8 represents a detail of Fig. 6 in plan view.

Fig. 9 represents a detail of Figlia.

Fig. 10 represents the digit sequence setting mechanism. f

Fig. il is a vertical sectional viewJ of the typing mechanism. l

Fig. llais a detailvlew of part of the escapement mechanism of the typing mechanism.

Fig. 12 represents a front view of the indicator device for predetermining the column width and the reading spaces.

Fig. 13 represents the indicator device according to Fig. 12in sectional elevation.

Fig. la represents a drive for the operating elements controlling the reading spaces.- l

Fig. 15 represents a front view of the indicator plate for adjusting the date and the book index values or the like.

Fig. 16 represents a sectional elevation of the Figs. 17o, 17h represent a portion of the blank on which the entries are typed.

Fig. 18 is Aan isometric view of anlmportant part of Figs. 6a, 6b, wherein the Operating elements are shown moved apart for clearness sake. Fig. 19 shows an isometric view of the main part of Fig.- 7, wherein the operating elements are shown moved apart for clearness sake.

Fig. 2u 'represents the mechanisms of the date-key.

Fig. 21 shows particular controlling mechanisms in addition to Fig. 1a. c

Referring first to Figs. 6a, 6b, a. multi-selector 2 is mounted on an intermediate longitudinal wall I ofthe machine. The electrical connections of Athis selector are shown in Figs.' 1a, 1b. The selector is composed o1' six individual selectors 3 through 8 in Figs. 1a, 1b. In Figs. 6a, 6b, the selectors l through 8 are assumedJ to lie one behind the other; the selector 3 does not appear in this view. Accordingly, also the "switching arms 9"through'|4 are mounted on a common axle I5 and prevented from laterally moving d thereon and are electrically insulated therefrom. 5v The contacts IG through 25o! each individual indicating device behind the plate, Fig. 15, and

selector are connected respectively through conductors 26 through 3| to a cable 32 which leads to calculating or perforating or other mechanisms which may be required in the system b ut which are not illustrated here since they have no bearing on the present invention. In the electric connection, as shown in Figs. 1a, 1b, similarly located Contacts |16 through 25 of the individual selectors 3, 4 are connected by conductors 26, 21. The switch arm 9 of the selector -is divided into as many contact fingers as there are contacts in the particular selector, (Fig. la), extending backward from the contact I6 in the direction opposite to the movement of the switch arm. The first finger of the switch arm 9 of the selector 3 lags behind the switch arm I of the next following selector 4 connected with it by one contact distance.

A gear Wheel 33, shown in Fig. 6a keyed to shaft I5, meshes with a rack bar 34 which is guided on Wall I by means of pins 35. The forward end of rack bar 34 is tur-ned at right angles to form a hook 35", shown in Fig. 8, which engages behind a. hook 36 provided at the rear end of another rack bar 31, also slidingly disposed on wall I by means of pins 38. The latter rack bar meshes with a gear wheel 39 which is keyed to shaft 40. On shaft 49 is also fixed a bell crank-shaped contact arm 4| which is disposed to cooperate with contacts 42 through of a spacing switch 52, while the lagging arm 53 of bell crank 4I will contact with the nrst contact 42 when the leading arm 54 of the bell crank has passed the last contact 5| by one contact space.

Both rack bars 34, 31 have for a given distance uniformly-spaced ratchet teeth 55, 56, be-` tween which can engage respectively the springcontrolled pawls 51 and 58 of the double-armed levers 59. 60 pivotally mounted on wall I. In their resting positions, pawls 51. 58 are held outside of the range of rack bars 34, 31 by means of supports 6I, B2 respectively. The double levers 59, 60, which 4are journalled on axles 63, 64 respectively, are connected by means of a coupling bar 66 with a lever 61 pivotally mounted on an axle 65. Lever 61 is actuated by means of a connecting rod 68 from a drive disc 69 which is mounted on one of the drive shafts |31 of the machine. On the respective axles 63, 64, 65 are mounted bell cranks 10, 1|, and 12, and each bell crank can be connected with its appertaining lever 59, 60, 61 by a step and pawl connection 13, 14; 15, 16; 11, 18. Lever 61 is coupled by Way of a link 19 with a lever 80 which is provided with the step sector 8| by which it can actuate a three-armed lever 83. The pawl and step drives 13, 14; 15, 16; 11, 18; 82, 8| are disposed to be actuated, respectively, bv electromagnets 83 through 86, as shown in Figs. 6a, 6b, and l. All pawls are assumed to be spring-controlled, thereby tending to engage their respective steps, but are normally prevented froml such engagement by the armatures of their respective electromagnets.

Three-armed lever 83 is provided at its lefthand end in Fig. 6a with a bent-over end 81 by which the contact group 88 can be actuated. The end 89 of this lever carries a pi'n 90 at its end by which a rocker 9| `pivoted at 9|"I is actuated. Rocker 9| controls a locking pawl 92, the tooth of which is disposed to normally engage the ratchet teeth 56 of rack bar 31. If

pawl 92 is lifted oir the ratchet bar by rocker.

latch. 93 which also engages rocker 9| in the pawl-lifting position. This occurs during a certain period in the operation of the machine. The shank 94 of bell crank 12 has pivotally attached to it a rocking bar 95 which is connected at its other end to a cam 96 which controls a contact group 91. A key 98 is pivotally attached to wall I and spring-controlled as shown. By the depression of this key, a multicontact 99 can be controlled.

Against the forward face of bent-over end 35 of rack bar 34 bears a pin |00 (see Figs. 7a and 8) which is carried by a spring-controlled lever |0| pivotally attached to wall This pin is controlled by the end |02 of a rack bar |03 slidingly mounted on wall I. 'Ihis rack bar carries a rocker |01 pivotally mounted thereon at |01", which rocker is disposed to engage, together with an extension |05 of rack bar |03, the detent |06 of a further rack bar |06. With rack bar |08 meshes a toothed hub of an adjusting lever |08. The end |09 of this lever is bent at right angles and cooperates with the at detents ||0 of the armatures of the several electromagnets ||3 through ||1. As will be explained more particularly later the arrangement, as shown in Fig. 9, is such that in one position of the armature the detent |09 of arm |08 can freely pass through the armature, and in another position of the latter it engages the armature. The electromagnets ||3 through ||1 serve for the limitation of the column width for l0, l0-1, l0- l0-3, etc. digits. The control arm |08 is limited in its motion by a ixed pin I8 which determines its resting position and sets the machine for an effective column width of 10--4 digits. Therefore an electromagnet for setting the column width 10-4 digits is unnecessary. The electromagnet I|1 assigned to the column width 10-5 digits and, in connection with the pin ||8 (as explained later), to the column width 10-9 digits, controls an armature 580 which engages the forked end of rocker 58|. Each armature coacts with its appertaining latch ||9 provided with a step |20. The detent I2I of each latch is located within the range of a corresponding edge |22 of a resetting element |23.

With rack |03 meshes a gear wheel |24 which is coupled by Way of va friction coupling with the pinion |25. 'Ihe pinion in turn meshes with a toothedsegment |26which extends beyond its axle |21 in the opposite direction in the form of a sector |28. The latter carries two spring-controlled pawls |29, |30, which cooperate with steps |3I, |32 respectively of a dog disc |33. This disc is connected by way of a link connection |34, |35 and crank |36'with a drive shaft |31 mounted in the machine. Drive shaft |31 and also shaft |38 (which drives gear 89 in Fig. 6a) are connected by a drive gear not shown here.

The previously-mentioned pawl |30 is controlled by the armature |39 of an electromagnet |40 (see Figs. 7b, 1c). The dog disc |33 acts with its pin |42 upon a drag element |43 to which is connected a lever` |44 disposed to close a contact |45 and, at the same time actuate the resetting element |23 (Figs. 7a, 1c). Toothed segment |26, previously mentioned, carries further a pin |4| engaging the step 59| of drag |43. Contact |45, which is directly connected with a current source, is also connected by means of a wire |46 with an electromagnet |41 (Figs. 1c, 10), the armature |48 of which coacts with the detent arm 2000 of a pawl |49 to control the engagement of the pawl with a notch |50 of a coupling arm tidl of the pand ill?.

' |98 of the same contact group.

asoavos 3 Juniformlyg-spaced ratchet teeth of a ratchet bar 1o |50 which is slidin'gly mounted in the machine and which is also provided with uniform gear teeth which mesh with 'av gear wheel |0I. This gear-"wheel carries a. switch arm |52 which is coordinated (Figaio, 1e), for instance, with the 15 ten-digit contact group |03 through |12 of a column sequence selector.

The left-hand end llt of rack bar l in Fig. lo is disposed so that when the rack bar is shifted, it engages a pin |75 of double-aimed g@ lever |16. This lever carries at its upper end a spring-controlled pawl l'l disposed so that it t can engage a notch |70 in coupling bar tdi. The time at which thisengagement occurs and its electromagnet Edd, which coasts with a datent Deenergiaation of 'electromagnets M1 and ltcauses the pau/ls Mt and l'll to be disengaged from the coupling bar ISI. 30

Contact group iBS-|12 of the column sequence selector has its individual contacts respectively connected by means of conductors to |84 etc. to the switch arms |85, |30 ofthe columns one tol ten, Contact arms Edil; |500 (Fig. 13) are each non-conductively coupled with an adjusting and setting disc ywhich carries an arm |80 which prctrudes through a slot |00 (Fig. 12) of a cover plate lul provided in the ma- 40 Walls me@ mld A 2mm chine. Adjacent to each slot is provided a scale |92'- carrying the numerals El to 9 by which the number of the idle digits of s. column canbe easily recogrnafed. Corresponding with 'the combination system which is determined by the electromagnets itt to lll (Figs. lc, 'lol and pin H8, and whichcrrns the basis oi the disconnecting or elimination of digits, the five highest digit individual contacts i90 through 202 of contact groups |933 through 202 of the column width selector |8'| are short-circuited by bridges 203 and connected by way of a conductor 20d with electromagnets Hl. Theremaining individual magnets H3 through H6 respectively. The switch arm lengages the first contact |93 of its column width selector at a time when the leading contact arm |85 stands lupon the contact tioned groups of contacts with their connections' 'to the conductors 203 are necessary because the velectromagnets are also adjustable by perforations of cards. Theseperiorations are punched by a combination code.

the higher digitsy provision is made for two holes (455,! ll-lfl 442 4439)). Y l

From the contact groups 209 through 2|9 of the' selectors 220 (Fig. 1b) of, for instance, a 70 ten-digit adjusting mechanism 22|, conductors 222`through 232 lead respectively to electromagncts 233 to 242 of a typing mechanism 244, and

The aforemen- Thereby for the digits l to 5 only one hole is provided, whereas for the re one or several further typing mechanisms 2517. With each of the electromagnets is associated an armature 250 (Fig. 11), which in each case controls an individual pawl 259. These pawls are individually supported by bell cranks 260 and are disposed so that they can move with their steps 26| into the path of a crossbar of aball 252, which is carried by two parallel bell cranks 263. .The other arm of each of these bell cranks carries a roller 253B' which cooperates with cam discs 26d ofthe driving mechanism. -The arms 264my of bell crank 260, assigned to the numerals "0 to 3, 9, and the idle stroke release, actuate individual contacts 205 to 210 (see also Figs. la, lb). On the other hand, the bell cranks 200 which are assigned to the numerals "5 to "8 act uponl the double contacts 2H to 274. All individual and double contacts serve for transmitting values to be written to calculating, per

forating or other mechanisms which may be provided in the machine. Ain the present example no such contacts are associated with the typing mechanism 25|. The arms 26de of bell cranks 20d are linked to individual bars Ell which act duration are controlied by the armature ll@ of an 25 upon the mechanism which actuates the typing levers or the like of the typing mechanism. The typing mechanism comprises a set of type bars |00! adapted to print upon a record sheet supported upon a platen roller |035 rotatably mount ed in a carriage |030. The carriage has grooved rollers |0371 at its rear end adapted to travel upon a rod i030 and Wheels i039 at its front end adapted to travel upon a flat bar Mldll. Each type bar will is actuated by an appurtenant key bar |002 throughs bell crank lever |0616. The

' escapement mechanism for the carriage w36 comprises a rack bar 20H5 with which engages a pinL ion 20H xed to an arbor 200B rotatably supported upon set screws 200? Ymounted on 'frame The shaft 2000 also has fixed to. it a ratchet Wheel 2060 with which coacts an escapement dog 20M. This escapenient dog is in' the form of a bell crank lever pivotally supported'upon pivot screws 2003 and carrying upon its upwardly directed arm a fined tooth 20|@ and a pivoted tooth 2085. IThe latter is normally held by a spring lutti one tooth pitch in advance of the fixed tooth 20%. A spring 2002, connected to the arm 20m of the bell crank lever 2004,

. tends to turn the latter in clockwise direction. A

universal bell crank 'member comprising arms 20|'2 and 20H is pivotally mounted at ttul on the frame wall 2006. The arm. 20M bears upon the arm 20|3. of the escapement member, while the arm 20Hv has fixed to its upper end a horizontally extending universal bar 2005. A. stop |095 limits the movement of the two bell crank members under the urge of spring'. 2002. Each key bar |002 is connected by a link |003 to a bell crank lever |004. The upper end of the bell crank lever has a pin and slot connection with a bar |042 supported by a link |098 at its front end and slidably guided in a hole |091 in frame wall 2006 at its rear end. All of' theba-rs |042 bear at theirrear ends against the universal bar 2009, which consequently rocks the escapement member 2004 when each key is actuated. A conventional carriage feed mechanism is provided, comprising a tape |095 connected at |093 to the near frame member of carriage |036 and Wound upon zzoil spring box |095 rotatably mounted at cte end (Fig. 11) of `frame Wall 2005.

Switching arms y215 of the selectors 220 of the adjusting mechanism 22| 'are connected by in-

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