US1330278A - Calculating-machine - Google Patents

Description

' F. B. PALMER.

CALCULATING MACHINE.

AP?LICATION FILED MAY 11, 1919.

1 ,330,278. Patented Feb. 10, 1920.

3 sHEETs-s'HEET 1.

B I 0%! ATTORNEZ F. B. PALMER.

CALCULATING MACHINE.

APPLICATION FILED MAY 11, 1919.

1 ,330,278. Patented Feb. 10, 1920.

3 SHEETS-SHEET 2- ITNESSES:

INVENTOR BY '1 I I h I A OR Y F. B. PALMER.

CALCULATING MACHINE.

APPLICATION FILED MAY 17, 1919.

HEET 3 3 SHEETS-S Patented Feb.

INVENTOR Wflfw UNITED STATES PATENT OFFICE.

FRANK B. PALMER, OF DGIRRANOETQN BGROUGE, PENNSYLVANIA, ASSIGNOR T0 WALES ADDING MACHINE COMPANY, OF WILKES-BARBIE, PENNSYLVANIA, A

CORPORATION OF PENNSYLVANIA.

CALCULATING-MACHINE.

Application filed. May 17, 1919.

To all whom it may concern:

Be it known that T, FRANK B. PALMER, a citizen of the United States, residing in the borough of Dorranceton, Luzerne county, Pennsylvania, have invented new and use ful Improvements in Calculating-Machines, of which the following is a specification.

More particularly, this invention relates to automatic non-print mechanism, designed to prevent printing in one or more denominations, and permitting printing in the remaining denominations.

The invention is an improvement in the device shown in U. S. patent to Pentecost, 1,282,282, October 22, 1918, wherein a denominational typecarrier, if shifted to, or past a predetermined point, actuates means to prevent effective operation of the printing hammer associated with another denomination, to thereby eliminate printing of ciphers (or other characters) in such lastnamed denomination.

In the patent, the desired result is obtained by locking the usual printing hammer to render it inactive, such lock being directly actuated by the selected typecarrier.

Objects of this invention are the simplification and improvement of the former inechanism, and reduction in the number of parts employed, togetherwith a consequent reduction in the expense oi manufacture and the labor of assembling and adjusting the device in a calculatin machine, which ends, I attain by utilizing a diiierent principle to arrive at the same result.

Thus, I do not interfere with the activity of the usual arinting hammers, but so arrange the mechanism that such activity is rendered inefiectual.

In so doing, I have provided a novel device which is readily applicable to machines already in use, and is not liable to get out of order or require repairs.

To these and other ends, my invention includes the novel features and combinations of parts iereinatter more fully disclosed and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a longitudinal sectional view through the well-known Wales calculating machine, in connection with which I h ve chosen to illustrate my invention, the elements being in their-normal positions of rest, and certain of Specification of Letters Patent.

, Patented Feb. 10, 1920.

Serial No. 297,801.

the usual parts which are unrelated to the present invention, being omitted;

Fig. 2 is a similar view, showing the positions of the parts at the end of the forward stroke of the main drive shaft;

Fig. 3 is a fragmentary plan view of the keyboard section, the drive members and counters being shown in dotted lines;

Fig. 4 is a detail plan, showing a part of my invention; and

Fig. 5 is a perspective view of a rack detent equipped with neans to enable its con trol by the stops of another denomination.

Many of the principal features of the Wales machine are so complete y disclosed in U. S. patents to Wales, 7 94,205, July 11, 1905, and 797,032, August 15, 1905; and Mc- F arland dz lVales, 880,157, February 25, 1908; that an extended explanation thereof is unnecessary.

Briefly, the machine includes a keyboard having a plurality of denominational rows or banks of numeral keys 117, (Figs 1 and 2) each row comprising individual numeral keys from 1 to 9 respectively (in the decimal system. See Fig. 3.

The keys in each denominational row, individually control the respective stops 115 arranged in files corresponding with their respective rows of keys, to variously arrest the excursions of denominational positioning bars or drive racks 310.

Front arms 312 (Fig. 1) journaled on a cross shaft 300, and rear arms 311 journaled on a cross rod 301', pivota lv support the several positioning bars or drive members 310 for forward and backward reciprocation. Drive springs 383 conveniently connected to the several rear arms 311 and to a restraining and restoring bar 205, tend to ad ance the positioning bars. such advance being normally prevented by the restraining and restoring bar which extends across the machine in front of the several front supporting arms 312 to hold the latter, with the racks 310, in their retired positions, see F ig. 1.

The restraining and restoring bar 205 is supported and operated as follows.

A rock shaft 265 extending across the machine, carries depending fingers 265 1n which the restraining and restoring bar 205 is mounted, and a crank 220 (Fig. 1) havlng a cam slot. 22,0 is secured to .therock shaft 265. A wiper 256 projecting from an arm 210 fasten the main drive shaft 200, traverses the cam slot 22,0 to oscillate the crank 220 and swing the restrainingbar 205 from and toward the front supporting arms 312..

across the machine above the positioning racks 310, carry pinions 435 adapted to en- ;gage with and disengage from the racks by suitable mec ianlsm well-known in the Wales machine and not herein shown.

. Depressing numeral keys 117 in the vari-' ous denominations, to represent an amount to be accumulated on the counters 490, projects the corresponding stops 115 into the paths of the positioning racks310, and displaces the detents 221 corresponding to the denominations wherein keys have been depressed, and overlying their respective files of stops. The detents 221 are each journaled on a cross rod 202 and springs 280' restore .the detents to effective position.

7 Turning the main drive shaft forwardly raises the arm 210 and causes the wiper 256 to traverse the cam slot 220 in the crank 220 to rock the shaft 265 and withdraw the restraining and restoring bar205 relatively to the front supporting arms'312.

. The springs 383 are thus free .to advance the positioning bars 310 until the latter are arrested by'the projected stops 115 or by the detents 221 in denominations wherein no keys have been depressed. The counters A90 remain out of engagement with the positioning racks 310 until near the end of the forward stroke of the main drive shaft and after the racks have completed their advance, whereupon the counters drop to meshtheir pinions ass with the racks (see Fig.2); V

Releasing the main drive shaft at the end of'its forward stroke enablesa mainrestoring'spring 285 to return the shaft and its connected parts to the1r home posltions,

during which return stroke, the restraining and restoring bar 205 presses against the front arms 312 to retire the advanced positioning racks and thereby turn the counters engaged therewith, .to accumulate thereon the amount represented by the dekeys. l i 7 mar the'end of such return stroke, but the racks have been fully retiredythe a-l d'their pinions are disengaged mi hogs-and the keys 117 restored Jbl --8ions 3l1 of'th'e rear sup- -reconnected by links typebars 5145 whose spending to the designations of the respective he s 117 in the relateddenominations.

The drive springs 3.83, they advance their drive members orpositioning bars 310, rock the rearward extensions 3'11 to lift the typec-a-rriers 514C and successively present .the types 561 to the printing line. The stops 115. arrest the drive members 310 and type- "carri'ers 514C to position the types at the printing line corresponding to the depressed k ys, and the detents 221 arrest the positioning bars andtypecarriers when the cipher types areat the printing line.

A recocking bail 509 (Fig. 1) normally holds a series of denominationally arranged printing hammers 510, journaled on a shaft "00 in cocked position against thetensions of driving esp-rings 580. In additiom a universal catch 518 takes over the series of hammers, each of which latter jlSiLlSO provided with a suitably journaled individual latch511 engaged with their respective hammers by springs 58.1.

Displacement of the individual latches .511 is effected by means of trip bars 513, controlled by the extensions 311 '"The extensions 311 normally hold the trip .bars 513 in idle position against the tension of their springs 583. As the'rearward extensions 311 swing upwarely .on the forward stroke of the main drive shaft. to locate the types at the printing line, they release the trip bars 513 to the action oftheir springs 583 which lift and press the bars against the corresponding individual latches .511 to displace the latter relatively to their hammers 510." i

' Normally, the uppermost or cipher type i 561 of each typecarrier 514: lies just :below he printing line, but the positioning bars 3101ha-ve sufficient throw on the forward theliinited. travel thus permitted he rear ward extensions 311 is not sufficient to en able the trip bars 513 to displace the corresponding hammer latches 511. To effect the imprint of ciphers to the right ofa sigiificant digit, the hammer latches 511 each :carry a tail 518 adapted to extend beneath that when the" lastnamed 'latchis tripped, it will strike the tail of the hammer latch im- Vmedi'ately to the rightto trip such latch in case no keys have been depressed in the (16-, nomination corresponding with such right hand hammer latch. V

The recocking bail 509 is also withdrawn during the forward stroke, by means wellknown in the Wales machine, so that the universal catch 5 18 alone retains in cocked position, those hammers wnose latches 511 have been displaced. e

I the adjacent hammer latch to the left so H 1,260,615. March ably, a special detent After the proper types. have been positioned, the universal catch 518 is raised by suitable means (not shown) to release the hammers 510 which, under the influence of their drive springs 580, strike plungers 502 and drive the latter against the positioned types to effect an impression on the paper carried by the platen 2094.

The latches 511 to the left of the digit of highest value set up on the keyboard, remain effective to prevent imprints from the cipher types of their corresponding typecarriers.

Retirement of the positioning racks 310, during the return strokeof the main drive shaft,lowers the rearward extensions 311" which, in turn, retract the trip bars 513 to idle position, to enable the individual ham- Iner latches to become effective, and also lowers the t'ypecarriers 514.

The recocking bail 509 restores the ham- .mers to set position and the universal catch 518 snaps over them.

In machmes adapted for statement and to their latches, as at 554 and arrange a controllable slotted slide 515 through the slot in which the pivoted tail extends, to shift the tail to its effective and ineffective positions, depending upon whether or not it is desired to print characters in a single columnor in two separate columns simultaneously.

Such so-called more clearly in split mechanism is shown U. S- patent to lVilgus 26, 1918, to which reference is made for a more complete explanation thereof.

When the machine is equipped for statement work, it is customary to form the split between the sixth and seventh rows or denominations of a machine having nine de nominational rows of keys, and to equip the keys 117 and the typecarrier' of the ninth row or denomination with month designations. as shown in Fig. 3, the day of the month being set up on thenumeral keys of the seventh and V eighth denominational rows, when the tail 518 is shifted to idle position to form the split.

The three extra keys 1.1.7 (Fig. 3) to complete the twelve month designations may be located alongside and to the left of the keys of the ninth denomination, and con trol stops 115 located closely adjacent the file of stops 115 of the same denomination to control the advance of the corresponding positioning bar 310 and position the proper designating types at the printing line, it belng customary to mount all twelve of the month designating types in the typecarrier appropriated to the ninth bank. Prefer- 221 coacts with the month stops 115, 115

. earlier f rm m h ni m-1..

Furthermore, since digits from 1 to 3 only are required in the typecarrier of the eighth denomination to indicate the day of the month, it is customary to substitute commercial abbreviations, such as BL; DR; CR; etc., in place of the remaining six digits in such denominational typecarrier, although for the sake of increasing the capacity of the machine when used as a normal machine, without the split, I have shown but three such abbreviations. The keys 117 appropriated to these characters, are similarly designated.

A machine thus equipped, and with the split formed between the sixth and seventh 1'0 s of keys, is adapted to perform work, as follows:

Dr 100.00 Jan 31 7.50 Feb 3 21.99

Owing to the formation of the split in the printing section, tripping of the individual hammer latch 511 to the right of the seventh row to effect cipher printing, is interrupted, and if no keys are del ressed in the right hand rows immediately adjacent the seventh *ow, a blank space is left bctween the month designation and the amount, as indicated in the foregoing example. With the shiftable latch tall 518 in effective position, as when the machine is used as a normal machine, displacement of the hammer latch 511 of the seventh row, will in turn, effect the displacement of the hammer latch to the right thereof. and so on.

It is also obvious that the continued tripping operation of the hammer latches to the left of the split is uninterrupted from the ninth to and including the seventh row or denomination.

In view thereof, depression of any of the keys controlling the printing of the commercial abbreintions which, in the present instance, take the places of the seventh, eighth and ninth numeral keys in the eighth denominati-rm, followed by an operation of the main drive shaft, would ordinarily effoot the tripping of the hammer latch in the seventh bank and the consequent imprint of a cipher immediately adjacent the abbro iation. Thus, in the example above given, the first amount would be erroneously I printed a s- The invention disclosed 'in Pentecost 1,282,982. October 22, 1918. is designed to prevent the imprint of such irrelevant cipher immediately to the right of the abl'ir-eviation character, other than a numeral, and the present invention is directed to mechanism to accomplish the same result and constitutes improvement upon the member toshift the latter to efiective position relatively to the printing han'imer of that denomination wherein it is desired to eliminate printing, so that although the corresponding"hammer latch is tripped, the hammer is held against operation.

There are a considerable number of parts required in themannfacture oft-he patented embodiment, and a very nice adjustment is necessary for its' proper operation.

My i" vention materially reduces thenuinber of parts, and requires but lit le adjustment, and I have contrived to attain the same result in a much simpler manner than heretofore.

Thus, I provide the detent 221 appropriate to that denomination wherein the printing is to be eliminated, with a lateral lip 221 extending into the path or paths of one or more of the stops 115 which control the positioning of the type characters in connection with which the printing of ciphers is not desired.

In the present instance, the detent 221 appropriated to the seventh row or denomination carries a lip or projection 221 extending over and into the paths of the three stops'l15 actuated by the three keys 117 (Fig. 3) of the eighth row or denomination, which stops respectively operate to arrest the corresponding positioning bar 310 and the typecarrier 514: to locate the types BL, CR and DR at the printing line.

Obviously, depression of any of these three keys in the eighthdenomination will not only set the appropriate stop 115 (Figs. 3 and 4:) and lift the correlated detent 221, but will also, by contact with the lip 221 displace the detent 221 to which the lip is connected, which last-named detent is associated with the denomination wherein it is desired to eliminate printing.

Also, it is plain that the last-named detentmay be displaced by a larger or smaller number of stops in another denomination,-

depending upon the width of the lip 221 Assuming the depression of one of the character keys 115*, the drive shaft, 'on its forward stroke, withdraws the restraining and restoring bar 205 and frees the entire series" of positioning bars 310 to the action of their springs 383, which advance the bars until the latter are arrested by the stops 115 and 115 projected into their paths or by the effective detents 221 in denominations wherein no keys have been depressed. But depression of any of the .keys llh displaces the'detent in another denomination, and hence the pos tioning bar31'0' corresponding therewith is free to. advance toits extreme forward limit because no stops have been projected in such denomination.

As shown in Fig, 2, the positioning bar 310, in advancing to its extreme forward limit, passes over and past the stop 115 which, .when projected, arrests the positioning bar when the lowermost type 9 is at the printing line, the excess throw of the positioning bar operating to lift the typecarrier 51A connected theretoto locate the lower 'iost type 9 above the printing line andout of the path of its denominational plunger 562 so that although the. corresponding denominational hammer latch 511 has been tripped by its bar 513, and the'haminer 510 fires, its action is inefiective to print a character because 110- character is located at the printing line.

To prevent the dislocation relatively to its support, of the firing pin 562 correspending with that denomination, printingin' which it is desired to avoid, I prefer to stati'onarily mount a dummy. type 5G4: in the corresponding typecarrier 51A, beneath the lowermost type 561, asshown in Figs. 1 and 2. highest position, due to theexcess travel permitted the positioningbar by the displaced rack detent, it locates the dummy type opposite its plunger 562 so that the l. ter, when driven by the hammer, will strike andbe arrested by the dummy type.

The extent of withdrawal of the restraining and restoring bar is sufficient to permit the positioning bar to complete such excessive advance, and in practice, theforward end of thispositioning bar. may be slightly shortened or cut off to prevent its arrest by the familiar bail 20 i, and the front-supporting arm may be recessed, as at 312 to As the typecarrier reaches its insure the completion of the excessive stroke. 1

To compensate for such shortening of the positioning bar so that, under ordinary circumstances, its detent 221' will arrest it, to position the uppermost or cipher type at the printing line, I make the corresponding detent 221 slightly longer to extend farther rearwardly.

Furthermore, in order to afford sufficient clearance for the extreme ascent of the corresponding rearward extension 311, I may cut away the familiar universal? extension- 2 rresting bar 529 as at 529 7 These changes, however, are merely structural. it being plain that other changes may be adopt-ed to provide the necessary clearances, without deviating from my inven tion. I 1

While the herein illustrated embodiment of my invention, discloses a mechanism wherein the drive member is permitted an excess travel to position the regular printing types of the typecarrier above the printing line, and locate dummy" atitheiprinta ing line, to render the impact of the hammer ineffective, the dummy is employed merely to arrest the plunger or firing pin against accidental disengagement with its support, and may be dis iensed with in in- V stances Where the hammers directly impinge against the types. In such instances, the hammer would merely contact the front edge of the typecarrier at the extreme end of it throw.

y The drive member 310 during its retir ment, after such excessive advance, will turn its corresponding counter 4:90 a com plete revolution or semi-revolution, as the case may be, depending upon whether or not the counters carry one or two series of numerals arranged in tandem, and this ro-. tation will trip the usual carrying mechanism to add 1 to the counter of next higher denomination, but since the regisJration on the counters to the left of the split is disregart ed in any event, when printing month designations, such rotation is of no consequence.

Other changes and alterations may be made in the form and arrangement of the parts set forth, without den tic spirit and scope of my invention.

What I claim as new, is V 1. In a'calculating machine, the combination with a plurality of denominational trains of accumulating and printing mech anism, each train including a file of manually-settable stops; a typecarrier provided with a series of types; a hammer to impress the types on the paper; a drive member for the typecarrier; the drive member adapted to coact with the stops; and a detent to arrest the drive member in case no stops are set in the path thereof; the detent adapted to be displaced by any of the stops n corresponding denomination; of means to enable a stop in one denomination to control the drive member in another denomination, whereby to prevent type impressions in the last-named denomination.

2. In a calculating and listing machine, the combination with denominational trains of mechanism, each train including a drive member; a file of stops shiftable into and out ofetfective position, to variously arrest the drive member; a detent displaceable by the stops, to arrest the drive member when no stops are shifted to effective position; a typecarrier and types controlled by the drive member, to position that type at printing line which corresponds with the particular effective stop; and a printing hammer to impress the positioned type; of means to enable a stop in one denominational train to control the excursions of the drive member in another denominational train; and a dummy mounted in the type carrier associated with such last-named drive member, and positioned at the printing line when the excursions of the typecarrier and its drive member are controlled by the stop in another denominational train, to arrest the printing hammer.

3. In a calculating and listing machine, the combination with denominational trains of mechanism, each train including a drive member; a file of stops shiftable into and out of efiective position, to variously arrest the drive members; a detent displaceable by the stops, to arrest the drive member when no stops are shifted to effective position; a typecarrier and types controlled by the drive member, to position that type at the printing line which corresponds with the particular eii'ective stop; and a printing hammer to impress the positioned type; of means operated by a stop in one denominational train, to control the excursions of a drive member in another denominational n whereby the typecarrier associated with the drive member so controlled; positions no type at the printing line.

4:. In a calculating machine, the combination with a plurality of denominational trains of accumulating and printing mechanisms, each train including a file of manually-settable stops; a typecarrier provided with a series of types; a drive member for the typecarrier; the drive member adapted to coact with the stops to position the typecarrier with the proper type at the printing line; a printing hammer; and a detent to arrest the drive member in case no stops are in the path thereof; the detent adapted to be displaced by any of the stops in its corresponding denomination; of means to enable a stop in one denomination to control the drive member in another denomination, whereby the latter is permitted an excessive travel to shift its typecarrier to a position wherein no type are located at the printing line.

5. In a calculating machine, the combination with a plurality of denominational trains of accumulating and printing mechanisms, each train including a file of stops shiftable to and from effective position; a typecarrier having a series of types; means to impress the types when located at the printing line; a drive member for the type carrier, whose excursions are variously arrested by the stops; and a detent to arrest.

the drive member in case no stops are shifted in the path thereof; the detent adapted to be displaced by any of the stops in its corresponding denomination; of means to enable a stop of one denomination to control the drive member of another denomination, including a projection from the detent appropriate to-the denomination whose drive member is to be controlled, which pro ection lies in the path of at least one of the stops in another denomination, and a dummy type mounted in the typcarrier actutypecarrien having a series of types; means.

to impress'the types when .locatedat the printingsline; a. drive memberltor the typecarrier, Whose excursions are variously arrested bythe stops; :anda detent toarrest the drive member in case no stops .are shifted in the path thereof; the .detent adapted tobe displaced byany of the stops in itszcorresponding denomination; of means toenable: a stop of one denomination to controlthe drive member of another denomination, including projection from the detentwappropriated to the denomination Whose drive member. is to be controlled, which projection lies inthe-patlrof at' least one/o1? thestops in.anotherdenomination, to enable'the controllingstop to displace the last named idetent and permit the drive member and typeoarrier correspondingiw-ith such detent, an excesstravel tozshift allthe types in-the typecarrierpast the printing line.

7, Inrazcalculatingmachine the combination with ,a plurality .of denominational trains of accumulating-and printingvmechanism, eachtrain including a row of keys; a 7 file of settable stops controlled thereby; a drive member, the extent of whoserexcursions is regulated bythe stops; a detent displaceable by any of the stopsin its file to arrest the drive member When the stops are inactive; a typecarrier positioned by the drive member relativelyto the printing line, and bearing a row of types corresponding to the designations on the consonant I'OW voft keys; a printing hammer to impress the type positioned 'attheprinting line; va latch to retain the printing hammer inoperative; means to trip the adjacent latch associated With the denominational train of accumulating and printingmechanism' to the right; and a dummy type. on one ofthe typecarriers in addition torthe printing types; of 7 means controlled by one or more stops in one denominational train to displace the detent associated with the drive member of another denominational train, whereby to )ermit themaXim-um advance ofthe drive member and the consequent positioning of its typecarrier relatively to p the printing line to bring the dummy. type opposite the, printing hammer, andthus render the: printing action of the hammer r inefiective.

FRANK Britannia.

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