US1059522A - Adding-machine. - Google Patents

Description

A. BORDT.

ADDING MAGBINB. APPLICATION FILED SEPT. 12, 1910.

Patented Apr. 22, 1913.

A. BORDT.

ADDING MACHINE.

APPLICATION 1111111) SEPT. 12, 1910.

1,059,522. Patented Apr. 22, 1913.

8 SHEETS-SHEET 3.

Patented Apr. 22, 1913.

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ADDING MACHINE. APPLICATION IILBD SEPT. 12, 1910.

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Patentd Apr. 22, 1913;

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A. BORDT.

ADDING'MAOHINE;

APPLICATION FILED SEPT. 12, 1910.

.Patented Apr. 22, 1913.

8 SHEETSSHEET 6.

A. BORDT. ADDING MACHINE.

Q I APPLICATION FILED SEPT. 12, 1910.

1,059,522. Patented Apr. 22, 1913. 8 SHBETS-SHEET 7.

A. BORDT.

ADDING MACHINE.

APPLICATION FILED SEPT.12, 1910.

4 I Patented Apr. 22, 1913.

8 SHEETS-'SEEET 8;

- I R tr] 0 4 1 v ?\6 i a WITNESSES I I [NVE/VTOR 6M Adolf Bordt Allan my i To all whom it may conaerit ing the show disks in a UNITED s A Es PATENT ohm on.

mom? BORDT, or MANNHEIM, GERMANY.

ADDING-MACHINE.

Specification of Letters Patent; Application filed September12, 1910. .Serial No. 581,588.

Be it known thatL'Anon'r Bom r, a subject of the German Emperor, and resident of Mannheim, Germany, have invented certain new and useful Improvements. in Adding- Machines, of whichthe follow-ing is a s'p'ecification.

This invention relates to improvements made in addin machines and has for: its several objects, to increase the reliability of operatlon of the adding machine by movositive manner, second, to produce in an absolutely'certain manner, the di engagement of the show disks; third, to improve the printing of the characters by replacing the usual inklng pad" device, the guardplate being removed, Fig.

with. an inkingribbon, fourth,- to obtain a plied against 'the materia upon; fifth, to provide means whereby the regular and uniform printing of the characters by the application of'an invariable force, whereby the printing types are apbeing printed operator. may easily throw the printing mechanism out of operative relation with the adding mechanism; and sixth, to replace the usual zero hiding mechanism with 'a' mechanism for preventing the printing ofthe zeros.

. One of the improvements, which forms the subject matter of this invention com prises a lever mechanism which assures the engagement of the toothed wheels, of the show disks, with the corresponding actuating sector, up to the end of the rearward stroke of the actuating lever, and only allows".

'the disengagement, of the aforesaid teeth,

when the actuating lever has already begun its forward stroke; that is to say, after the complete stop of the mechanism andt-he complete abolition of any motion which might have been'imparted to the moving members. In' known machines of this character, the force imparted by the operator, to the actuating lever, being essentially variable, the printed member was either too dark or too light. One of the devices, described hereinafter, remedies the foregoing defect, by causing'the printing operation to be ac: complished by a constant force which is imparted, after being stored up, by a simple motion of the actuating lever.

-The accompanying drawings, ven, by

way of example, show one form 0 embodyment of the im roved construction ofthe adding machine erein described.

In these drawings Figure 1 shows a fragmental, left side, elevation View, embodying the engaging mechanism at rest, Fig. 2 is a similar view of the -members shown in Fig. 1, but-here shown in the position which they occupy when the actuating lever is at the end of its backward stroke, Fig. 3 is a side elevation view of the printing mechanism and of the ribbon inking device, at rest, Fig. 4 is a similar view of the mechanism shown in Fig. 3, the members of which are shown in their printing position, Fig. 5 is a top plan view of the mechanism shown inFig. 3, Fig. 6 is a front elevation view of the ribbon inking device, Fig. 7 is a rear view of the ribbon inking #485,592, dated March 25, 1909, the engage-- ment of the. toothed wheel 144 with I the toothedsectors '52, at the beginning of the rearward stroke of the actuating lever, is obtained by raising the mechanism com'prisingthe elements 63, 61, 57, etc, which carrice the shaft 54, which constitutes the oscillatory axis of'the toothed sectors 52. .This raising motion is accomplished by means of the segment 70, the rear end (129) of which is inclined, and constitutes a cam, which raises the roller 69, whichis io'nrnaled to the lever 65; the latter being carried by the arm 63. The rotation of the show disks 141 is obtained by means of-the segmental rack 52, which in its rearward movement, engages the toothed wheel 144.; the latter'being in fixed relation to the show disks and rotatable therewith. In its rearward stroke, the'cam 129 is forced under the roller 69, and thereby raises the forward ends of the levers 63 and 65 and the members 61, '54. and 52. The said engagement, between the toothed wheels 144 and the sectors 52, is maintained, in the machine described in the said patent appli-. cation, so long as the roller 69 is supported bly the upper surface 72 ofthe segment 70; t c said on agement ceases as soon as the said roller asarrived at the front end of Patented Apr. 22, 1913.

and with the upper, forward surface 402,

which constitutes a continuation of the track 72 for the roller 69. A pin 403,- which extends laterally from the lever 400, serves as an abutmentfor theroller 69. A. pawl 404 is mounted for oscillation on the arm 75 and is subjected to the action of a spring 405, wh ch is connected therewith and with the arm 400. The said spring 405 has a constant tendency to apply the pawl 404 against the lower surface of the projection 401 in such a manner that, when during the operation, the arm 75 moves back from the arm ,400, a shoulder 406 engages one of the lower edges of the said projection 401.

In the adding machine described in my prior application No. 485,592; the disengagement of the teeth of the toothed sectors 52, from those of the toothed wheels 144, is dependent entirely upon the weightof the movable members thereof, for lowering the said members. In the present form of embodiment, I provide means for effecting the downward movement of the said members,

. by subjecting them to the action of a spring 407, connected to the main frame of the ma chine and to the arm 63.

The members which have just been described are normally in the position shown by Fig. 1, that is, in the position of rest. Then it is desired to make an addition, and o this end, the predetermined key has been depressed, and the operator begins to-mov-e the actuating lever backward, the roller 69.

is raised by means of the incline or cam surface 129, thus bringing the sectors 52 into engagement with the toothed wheel 144, and

said roller rolls along the surfaces 70 and,

402 until the said roller contacts the pin 403. Since, at this moment, the actuating lever 84 has not yet reached the end of its rearward stroke, and the arm 75 continues moving rearward while the arm 400. is held stationary ,,b the roller 69. While continuing its rearward motion, the arm 75 puts the sprrtigmmdenfinsion and causes the shoulder tqengage the projection 401. When this engagement has been eifected,the leve 84 istat' end of its'rearward stroke, and the sectors 52 and wheels 144 are still meshing to ther. a

uring the short moment of rest, existing between the backward and forwardmotions of the lever-e84, the wheels l44lose theirmomentum, which had been imparted thereto, thereby avoiding liability of making an error in exposing the number on the show disks. described, having been brought into position shown by'Fig. 2, if the actuating lever 84 is now brought forward, the arm 75 pushes the arm 400 backward by means of the pawl 402; thereby causing the surface 404 to move away under the roller 69. At the moment when the latter leaves its bearing point on the said surface 402, it is pulled downward by the weight of the -engaging mechanism and by the force of the spring 407. The said roller 69,-in its descending motion, passes down through thespace, existing at this moment, between the projection 401 and the segment 70, and contacts the top of the pawl 404, carrying the latter downward and thus disengaging it from the said projection 401. Thus, the segment is forced against the said projection 401, by means of the spring 405, which brings the arm 400 back into its position to rest. During the foregoing movement, the pawl 404 has moved under the projection 401, and the roller 69 has rolled along against the lower surface of the segment 7 0, which constitutes an arc of a circle eccentric to the upper arcuate surface of the segment 7 0, and thereby forces the said roller downward, and

when it has passed beyond the saidsegment 70. atits forward end, the roller automatically assumes a position opposite the incline 129. This result is accomplished by means of a spring 408, secured to the lever 65, and bearing on the pin 67, which is integral with the arm 63.

The ribbon indicating mechanism, of the printing device, shown in Figs. 6 to 8 of the drawings, is formed of a box-shaped housing 315, in the front wall of which two shafts 316 and 317 are journaled and project out-- Wardlyand inwardly from the said front wall. Each shaft carries 'a disk 318 on its outwardly projecting. part, and each said disk carries a. pin 319. On the outer parts of these shafts are seated the ribbon bobbins or spools 320 and 321, the 'wooden hubs of which are provided-with eccentric apertures The parts of the mechanism which receive the pins 319, whereby the bobbins are held against rotation of the shafts. Tlfe ribbon bobbins are secured on the shafts 316 andv 317 by means of disks 322 which are held on the screw threaded outer ends of the shafts by means of milled nuts 323. The inking ribbon 324 unwinds from one bobbin, for instance from the left hand bobbin, passes over a roller 325, descends thence over a roller 326, passes horizontally to the roller 327 andthence upward to the other bobbin. The rollers 326 and 327 are carried by arms 328 depending from the housing of the inking device. This inking device is pivotally supported above the printing I vided on the hub of the actuating lever 84.

These devices are constructed U respective y,

I V 1335 respectively, keyed :3

1 end of'an' arm an automatic reversing' the shafts 316, 317

1 cause engagement against rotation on the means. a 50 The cam 331 is arranged in such relation to the beak 330 that it allows the entire framework to oscillate downwardly, as the lever 6 nears the end of the rearward stroke, so as to lower the horizontal portion of the inking ribbon, under the printing disks 190, a moment before the latter are lowered into printing contact. During the following forward stroke of the lever 6, the beak 330 moves'upon the ,cam 331, raises the framework of the printing mechanism and causes the inkingribbon 324 to advance, so that its lower horizontal part separates from the character which has ust been printed.

The inking mechanism comprises anautomatic' actuatin device for the ribbon, '(which may also e actuated by hand), and disk for same, actuated by hand). in the follow manner: The inner projecting parts, of

(which may also be bevel gear'wheel' 332 and 333 which are adapted to mesh gear wheels 334 and on a shaft 336, which is rotatablyseated in bearings; the latter being provided in the lateral walls of the housing 315. This shaft may be shifted in. its longitudinal direction so as to alternately of the ' bevel wheels 333 and 335, and of the bevel wheels 332 and 334. The rotation of the. shaft 336 may be obtained eiher by hand (by means of the.

each carr a with the corresponding -milled nut 337, which it carries at its o'uter end), or by a ratchet wheel338, mounted on the shaft 336, so as to provide for the lon itudinal shifting of the shaft through t e hub of the ratchet wheel, which is secured shaft by any. proper I Lateral motion of said ratchet wheel 338, relativ'e to the housing, is prevented by its contact with a wall of the housing 315 and by. contact with a pin 339, in the front wall of the housing 315. The ratchet wheel 338, the backward rotation of which is prevented by a pawl 339, is actuated by a pawl 340, carried by the upper 341, which is adapted to oscillate on a pivot 342 'of the main frame. The

pawl 340 is provided with a counter-weight 343, carrying a in 344 which is normally :,.r1es, near its pivot a lateral arm 345, provided with a head 345',

which has a tendency to constantly press .said head against the peripheryofythaxhub of the actuating;

and to thereby cause following backward 'the housing 315, is a of the ribbon. bobbins,

- each lever 84, because of the coiiperative relation of the hat spring 346 with the stud 347 which is secured in the frame 1. This stud constitutes an abutment for the spring which is secured to the-pivot 342. The head 345: is engaged, toward the completion of the forward stroke of the actuating lever 84, by a shoulder 348, provided on the head of the lever 84, so as toraise the frame 345 the arm 341 to oscillate. The pawl 340 causes the ratchet wheel 338 to advance one tooth; each time the" lever 84 makes a full stroke, During the stroke of the lever 84, the arm 341 oscillates forward, under the action of the spring 346, and causes the awl' 340 to slide River the succeeding tooth o the ratchet wheel 338.

The reversing gear of the ribbon is constructed in the following manner :-Mounted in the lower part of the front wheel of shaft 349, which is parallel to the shafts 316 and 317, and carries an arm 350, the latter being provided at its upper end'with a roller 351, having its periphery in contact with the hubs of the two bevel wheels 334 and 335. The front end of the shaft 349 carries a flat spring 353 which extends upward between the two ribbon winding bobbins; This spring bears on the ribbon, which is being wound on the bob- -bin,'and exerts a tension thereon in proportion to the quantity of ribbon on the bobbin. As this quantity of ribbon increases, the spring finally acquires suflicient force to accomplish the shifting of the shaft 336, through the medium of the shaft 349 and the arm 350, thereby throwing the gearing of the wound bobbin out of mesh and causing the gearing of the unwound bobbin to' mesh and thereby changing the direction of the rotation; of the bobbins. The flat spring 353, at the same time, assumes a. position in contact with the ribbon on the opposite bobbin. In order to produce the said. shifting, at a predetermined and proper moment and in a positive and sudden manner, a special disengag-- mg device is provided which comprises, for

of the ribbon winding bobbins, a latch 354 and 354' respectively, which oscillate on 4 shafts 355 and 355?, secured in the front wall of the housing 315. The flat springs Y356 and 356', secured to the latches and bearing against abutments 356 and 356 respect1ye1y,.have a constant tendency to push. the

latchesinto engagement with a pin 357, se-

cured 'in the front surface of the lever 350, so as to project under the two latches 354 and 354. Mounted on the shaft 349,,jand adapted to oscillate freely thereon,,jbetween' the arm 350 and the front wall of the housing, is a balance beam 361, carrying two pins 358 and 359, each passing through a slot ,provided in the front wall of the housing 315. The pins 358 and 359 project beyond the front surface of the housing, un-

der the ribbon bobbins, so as to be engaged,

by the ribbon bobbin which is being wound up, and to be pushed downward by the ribbon when the bobbin has become nearly filled. The beam 361 also carries, on each of its arms, an upward extension 362 and 363 respectively, each being provided with a pin 364, and 363 respectively, adapted toengage correspondingiatches 354 and 354.

In the position shown by Fig. 7 the arm 350 is held in the left position by the latch 354, while ,the spring 353 having been pushed toward the right side by its contact with the ribbon being wound upon the bobbin 321, is exerting a tension which resists the engagement of said latch 354'. The in creasing quantity of ribbon on the bobbin 321 produces;the'progressire descent of the pin 359, and simultaneously causes the pin 365 to be raised. At a determined moment,

that is when the bobbin 321 is filled, the pin alternately filled. It is obvious that, by suitably operating. by hand, the pins 358 and 359 and the shaft 336, by means of the button 337, the operator may reverse the winding of the ribbon at any desired moment;

In order to assure a correct, even and uniform printing of the column to be added, it is very important. that the printed characters be placed in perfect alinement; and in order to obtain this result. the printing mechanism described in the said patent application, has been improved by the provision of. a rakelike detent 366, carried by a bifurcated frame 367, the outer extension of which comprises furcations 36S and 369 which are each provided at one end with a slot 370, adapted to receive and slide upon the shaft 177 which latter carries the printing disks 190. The

said rake-like detent is intended to push its teeth between certain teeth of the wheels 207, a moment before the printing takes place,

and to thus arrange and secure the printing types in positive and perfect alinement.- The rear extension 371, of the frame 367, is

pivotally connected with a depending arm, 409, which latter is pivotally connected with a shaft 410, secured to the frame 1. The arm" 409 is provided with a rearward extension 411, which, owing to the weight of the memr bers 409 and 367, is constantly applied In statin the ob'ects of the resent invena l P tion, a device has been mentioned which provides forobtaining a regular and uniform printingdf the characters, by application of an invariable force, for producing the printing impact. This device, shown by Figs. 3, 4 and 5, comprises a shaft 414, jourualed in the lower longitudinal members of the main frame, and carrying. near the left side of the machine, an arm 415, the forward end of which is free and carries a roller 416 which bears and rolls on a cam 417, fixed on the main shaft. 74. The right hand end of the shaft 414 projects from the framework and has secured to it, in any proper manner,

the hub 418, of one of the two side bars 419,

which carry the shaft of the type carrying dis s 190. The shaft 414 carries an arm 420 with which a spring 421 is connected,

the latter being secured. at 422, to the main frame. The purpose of said spring is to suddenly lower the type carrying disks 190, when the arc-shapedsurface 423 of the cam 417, leaves the roller 416, during the oscillation of the shaft 74. r r

If the cam 417. was constructed in the usual or known manner, the incline which is necessary for lifting the roller on its areshaped surface, would reduce the impact of the types on the ribbon and on the member being printed upon, and consequently would detrilnentally affect the quality of the printing. It has therefore been necessary to provide a cam of special construction, which, while providing a sufiiciently steep incline for raising the roller on its arc-shaped surface 423 it also allows the spring 421 to act suddenly and to cause the types to perform a'sharp blow and a quick and positive pressure on the ribbon. This special cam is constructed and arranged as follows: Freely mounted on the shaft 74, and adjacent to the cam 417, is a secondary cam 424 having an arc-shaped surfacewhich registerswith the arc-shaped surface 423, of the cam 417,

and projects forwardly beyond the latter when the-machine is at rest and during the rearward stroke of the actua-ting'lever 84. This forward projection is obtained by the action of a spring 425 secured to the hub of the cam "417 and extending through a slot 426, in the cam 417. When, during the operation of the machine, the actuating lever 84 is moved backward, the roller 416 rolls on the two cams 417 and 424 until the front end of the latter cam is reached by the said roller, whereupon the roller falls cated at 324 (see Fig. 4).

a one of the arms I toothed wheels 207, as I -racks 20.7, are also provided with eleven venting printing of the said zeros,

by Figs. 9 and 10 of the drawings. To this suddenly from the front end of the cam 424 and pushes the cam 417 backward against the action of the spring 425 until the entire printing mechanism is arrested by the contact of the type carrying disks against the ribbon 324 which may be suitably arranged above a supporting pad or plate, as indi- In this position the roller 416 rests on the lower part of the incline 427, of the cam 417, and when the actuating lever 84 is oscillated forward, the incline 427 forces the said roller to rise until it reaches the arcuate surface 423, and thus brings the entire printing mechanism back into the position shown in Figs. 3 and 5. Owing to the'repeated shocks to which the printing mechanism issubjected, it might transpire that the types will fail to strike the same place for each character printed, andtherefore a slotted guide 428 is provided on the main frame; and, inthe slot of this guide, the left hand type carrying bar 419- has vertical movement.

In certain cases it may be desirable to. pre-- vent the printing mechanism from acting;

To this end I, have provided, on the rear supporter 413, a small oscillatory lever 429, of which carries a handle 430, the lower arm 429v being so constructed that when it assumes the position shown in dot and dash lines (in Fig. 3), it bears on the cross bar 431 which connects'the rear ends of the carrier 419, and consequently prevents movement of the printing mechanism.

The mechanism shown in the said patent application, for hiding the zeros has been. replaced in the present form of embodiment,- by the following described device, for preas shown end, t e type carrying disks 190 have been divided into eleven equal divisions:- That is, each said disk contains ten types from 0 to 9" inclusive. The space 432, whichis equal to one eleventh of the circumference, intervenes the types 59 and 0. The well as the toothed teeth. It is obvious, however, that for these members 207 and 207 any other appropriate number of teeth may be substituted. I

In order to revent the zeros or Os from striking the rlbbon, and thereby printing before the type carryin' disks have been rotated, it is desirable't t'the spaces 432 are normally in the printing position. Therefore, a supplemental stop lever 433 has been provided, having a hook 433' whlch engages a cross head 50, which is slidable in the slot 45. The cross head 50' is pivotally secured at 50,.to a link 179; the latter being operatively connected with operating mechanism of the machine, by proper means which forms no part of the present inven-' vers 49 are freeto oscillate on the 436, extending 'ously,

'tion and is therefore not described. All the stop levers 433 oscillate freely around a common axis 434, and each lever carries a leftwardly extending pin 435, which rests upon the detent levers 49. These detent lepivot 49', and each has ahooked end 49*, adapted to, iengage the cross head 50-. At the lower extremity of the member 49 is a shoulder 49 which is in contact with a pin 19, which is "carried b an extension 18 of the diagonally slotted p ate 17. Each key 11 carries a pm 11 adapted to enter the diagonal slots 17 in the plate 17, and to move said plate rearwardly, by means of the cam action of the slots 17 and the pins 11'. When the bar 17 is moved rearwardly, the extension 18 land pin 19 are carried therewith, and the latter acts upon the shoulder 49, therebyraising the hooked end of the lever 49. Each of the levers 433 also carries a finger under the adjacent right hand lever 433. Only the lever 433, which is positioned at the extreme right, has no finger 436'. v

his device operates in the following manner: If the operator lowers an elected one of the keys, 11, for instance, the key in the-third row rearward and the third row leftward, the stop lever 49 is raised, as described, and the said lever 433 is raised by means of its pin- 435 contact-in the lever 49 of its corresponding row. '1 e raising of these levers frees the cross-head 50' from engagement withthe hook 433, and. the said cross-head is free to move rearwardly'in the slot45, until it contacts the end def the key which has been lowered. During the raising motion, the lever 433 has raised, by-

means of its finger 436,- the corresponding adjacent rightward lever; and simultanetheextreme right hand lever 433 is also raised. Because of these lifting motions, the cross heads, of these three right hand rows, are allowed to advance in their respective slots 45, until they strikexagafnst the hook of the lever 49, which has stopped them in a position corresponding to the printing of the zeros. It will e easily understood that the type carrying disks 190, which correspond to the two rows of keys leftward of the. row in which the elected *key has been lowered, have their non-printingsp'aces in alinement with the numerals or zeros which are in the printing position, while the disks which correspond to the rows rightward of the elected key, have either azero 'or a numeral in the printing position.

Having now fully described my said in-- vention, what I claim and desire to seep re by, Letters Patent is 1. In an adding with the framework'and the actuatingdever, of show disks, toothed wheels (144) conmachine the combination 55 3 little before the end of the backward stroke of said actuating lever so as to provlde a nected with said show disks, toothed sectors (52), means for positi ely connectlng sald sectors with the sald actuating lever, an 0s- I o cillating carrier for said sectors, means for.

raising the said carrier so as to cause the said sectors to mesh with said toothed wheels, an oscillating arm (400), a projection on said arm adapted to coeperate with said oscillating carrier in such a manner that the latter is held in its raised position until the forward stroke of the said actuating lever has begun, substantially as described. v

2. In an adding machine the combination with the framework. the actuating lever and the shaft carrying it, of show disks, toothed wheels (144:) connected with said show disks, toothed sectors (52), means for posi tively connecting said sectors with said actuating lever, an oscillating carrier, for said sectors, a roller (69) on said carrier, a segment (7 0) keyed on the'shaft of said actuating lever, and adapted to cotiperate with said roller (69) so asto raise the latter and the said oscillating carrier, an arm freely mounted on the shaft of said actuating lever,

' a projection on said arm and adapted to form the continuation of the engaging sur 1 face of the said'segment and" toreceive. the

saidroller (69), a pin (403) provided on said lever and adapted to stop the said roller ('69) a little before the end of the backward stroke of said actuating lever so as to provide an empty space between the aforesaid segment (70) and the projection of said 3. In an adding machine the combination V with the framework, the actuating lever and the shaft thereof, of a plurality ofshow disks, toothed wheels (144) made integral I with said show disks, toothed sectors (52),

means for positively connecting said sectors 'with'the said actuating lever, an oscillating carrier for said sectors, a roller (69) provided on said carrier, a segment (70) keyed on the shaft of said actuating lever and adapted to cooperate with said roller (69) ipso as to raisethe latter andithe said oscillating carrier, an arm freely mounted on the said shaft of said actuating lever, a projec tion on said; arm and adapted to form the continuation of the engaging surface of said segment and to recelve the said roller (69), a-pi'n (403) providedon said lever and adapted to stop the said roller (69) a gap between theaforesaid segment (70) and they projection on said lever a spring controlled pawl (404) pivotally mounted on tension and falls thereby disengaging the said pawl from the said projection, substantially as set forth.

4. In an adding machine the combination with the framework, the actuating lever and the shaft thereof, of a plurality of show disks, toothed wheels (14A) made integral with said disks, toothed sectors (52), means for positively connecting same with said {LC-1.

operating lever, printing disks, and an inking device comprising a frame work carrying ribbon bobbins, said frame work being pivotally connected wit-h thefirst said frame work at a point behind the center of gravity of said inking mechanism, the frame work of said inking mechanism having a beak depending therefrom and adaptedto oscillate therewith on said pivot, a cam operatively connected with said operating lever and adapted to contactihe under surface of said beak for raising andlowering-the latter and thereby allowing the inking mechanism to be alternately lowered into operativerelation with the printing disks and raised out of,

operative relation therewith.

6; In. an adding machine, a

thereon, means for rotating the type carrying disks, a reciprocable detent suspended 111 the frame operatively connected with the disks, means for reciprocating the detent, said detent having guiding meansin contactwith the shaft whereby certain elements of said disks are engaged by the detent for bringing certain of the type into perfect alinement.

7. In an adding machine the combination with the framework, the actuating lever and the shaft of the'latter, of printing disks, :1. carrier for'said disks, a shaft adapted to receive said carrier, a" spring (421) adapted to cause the said carrier to oscillate, a double cam on the shaft'of said actuating lever, and a lever ns and a roller 416 adapted to operatively connect the said cam with said carrier, substantially as and for forth.

8.. In an adding machine the combination with thelactuating lever andthe shaft thereof, of a printing mechanism, and-tanactuating device for said printingmechanismthe said actuating device being composed'of-a lever carrying a roller (416), a main aim frame, a shaft in the frame having type carrying disks ios the purpose set (417) keyed on the shaft of said actuating lever of the machine and having'an are shaped rolling path and an incline for rais-' ing the said roller (416) when the printing device is brought back into its position of rest, and a second cam (424) which is freely mounted on the shaft of said actuating lever and yieldingly connected with the -first one so as to prolongate the are shaped rollingpaths of the latter during the rearward stroke of the said actuating lever and to leave suddenly the said roller 416 when the latter has arrived at the frontend of the' aforesaid rolling path so as to allow first its sudden falLunder the action of the spring v -42 1;and there-after its easy rising on anincline 427 of, the main cam 417 substantially as set forth;

,9. In an adding machine, thecombination with a main frame, of printing disks rotatable in the frame, each printing disk'having ten approximately equally spaced types I 'ran g from nought to nine inclusive and having afrelatlvely wide space between said nought and nine, means for rotating the disks, gmeans including an actuating leverv whereby the disks are rotated, an inking ribbon intervening the said disks and the member to beprinted upon, stop levers operative for retaining the nought of certain disksin operative relation to the ribbon, su'pplemental stop levers for retaining the relatively widespaces ofcertain disks in operative relation, and actuating keys having means connected thereto for stopping and retaining certain numerals of certain of the disks in operative relation to the ribbon.

10. In an adding machine, a main frame, a

multiplicity of printing disks rotatably secured to the frame, each said disk having types thereon ranging from nought'to nine inclusive and having a relatively wide space between .the nought and the nine, disks retaining means comprising a multiplicity of a'multiplicity of supplemenstop levers and the said stop levers and suptal stop levers,

Copies of this patent may be obtained for five cen ing the said plemental levers being varranged longitudinally "and adjacently, means oneach stop lever for raising each adjacent supplemental stop lever, means connected with each of the leftward supplemental ing all of the stop levers to the right thereof,

stop levers for raiswhereby each said disk is adjusted and re- 'tained in a predetermined printing position.

11. In an adding machine, the combination of rotatable type carrying disks, means for rotating the disks, means for retainingeach of the disks in. a determined rotated bers and contacting the under side of the nearest rightward supplemental stop member whereby the latter is adapted to be raised, keys, and means cooperatively connected'with said keys for oscillating the stop levers, whereby said disks are released from retentionof the stop members.

12. In an adding machine the combination with the main frame of the machine,

of a printing, mechanism comprising anoscillating printing frame, means for causprinting frame to oscillate, and a lever adapted to be actuated by hand and'mounted in an oscillatory manner on the said framework of the machine so as to be able to prevent 'Withone of itsjends the oscillation of the aforesaid prln-tmg device, substantially as and for the purpose set.

forth.

In testimony whereof I have' hereunto set.

my hand in presence of two. witnesses.

. ADOLF BORDT.-

Witnesses: V Y

J osEF PFEIFFER, ERNEST L. Ivns.

ts each, by addressing the Commissioner of Patents,

Washington, D. O.

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