US1323381A - Vahia - Google Patents

Description

NI. SCHUPPE.

CALCULAHNG MACHINE.

APPLICATION FILED APR 2|, 19w.

Patented Dec. 2,1919.

3 SHEETS SHEET I.

INVENTOR %Xl9fl M. SLHUPPE.

CALCULATING MACHINE) IJIJ.

Pufentwl Dee. 2,1912).

3$HEETS $HEET 2.

APPUCATION TILED APR, 21.

M. SCHUPPE.

CALCULATING MACHNE.

APPLICATION FILED APREI. 1919.

W ATTdTE iv arri s. fit it inle MAX SCHUPPE, OF BROU LYN, NEE YQ"" COMlANY. 0F "iii/"ILEZES-Biki V13, NIA.

:an r FT- Jinks-LL59.

ASSIGNOR TO WALES ADDING MACHINE PEIL'E SYLVAEJIA, A CGBFQEATIOII OI PENNS'. L-

GALCULATIN G-IvljiEI-IIN to novel means to enable. calculating machines to compute fractions as distiirmiished -from cardinal numbers of the decimal systom, and is adapted for any such fractional divisions, as, for instance, the duodecimal, in which bet and. inches, pound. and bushels, pounds and ounces (troy weight), hours and minutes (5 minute intervals) and British pounds and shillings, are computahle, or the sextodecimal system in which drains, ounces and pounds (avoirdimois weight), are computed.

is calculating machines generally, and especially in this country, have been devised to compute according to the decimal system, a fixed construction has devehiped due to a desire to arrange the parts as compactly as possible consistent with good practice, which, while readily lending itself to change where ordinal fractions of greater value than tenths are to be calculated, is not as elastic. where ordinal iractimis of lesser value than tenths are to he accumulated.

This is due in part to the limited number ol' teeth which may he tonne-l on a pin ion of a certain diameter, in a commercially practical machine, and also to the limited clearance or room afforded the various mecln anisms operating to etiect the accumulation of amounts on counters controlled by such pinions.

Consequently, the introduction into machines designed and constructed for operation accordingto the decimal system, of counters arranged to compute according to the duodecimal system, has heretofore, necessitated the extension of the paths oi travel of the. driving memhers for such counters ore and beyond the paths of travel oi the similar driving; members associated with the decimal counters; and such expansion has practically taken up the available clearance provided in such machines.

This condition will'he better understood Specification of Letters .;..Rll3lt. P gni-ed, jfpqgg, 2, jgLji 1915, Serial No. 291,518.

by a concrete illustration. The counters of machines arranged forthe decimal system may he peripherally inscribed with a single set of numerals from 1" to 0- in. ascend-- ing order, or with two sets oi numerals arranged in tandem, or succession from 1 to O in ascending rtlcr.

In the first-instance, the counters are respectively provided with pinions of ten teeth, and a complete revolution is necessary to add amounts to the capacity of the wheels, before the excess 1 is transferred to the counter ot next higher denomination.

in the second instance. the counters are espectively provided with pinions having twenty teeth, and need only make a half revolution to complete the capacity of one denomination and transfer the extra 1 to the counter of next hi her denomination.

As the drive members which turn the counters, reciprocate hack and forth rela tively thereto, it is evident that the length oi stroke of such drive members, in a machine constructed to add ccording to the decimal system, must he at least equal to nine times the circular pitch of the pinion,

in order to turn the counter from its 0 position to its 9 position, the carrying mechanism, in denominations above the units denomination, operating to turn the. counter pinion through tiie remaining step or increment of movement to complete a full revolution of a ten-tooth pinion, or a hall revolution of a twenty-tooth pinion.

it is custoi'uary, therefore, in constructing calculating machines, to provide room for the necessary stroke of the drive members, plus a clearance to insure their proper operation, and in view of such fixed limits, it is only possible, in many instances, to permit the drive members to have but a slightly longer stroke, say, enough to enable the drive members to turn the counter pinions through an angle equal to two additional steps or increments of movement, the correspondingpinions being changed to have twelve or twenty-tom teeth, as the case may he, to calculate twelt'ths, in accordance with the dnodecimal system.

The extension of the stroke of the drive memberfrom a distance equal to nine times the circular pitch of the pinion to a distance equal to eleven times the circular pitch of 7 up the available clearance for the drive inemliers in a achine arranged to :n-ciunulal'e ience, when it is desired to still calout vid accumulating drive members.

t might- )e thought that a pinion ol the ze of the ten-toothcd pinion, tor instance,

V v w v l W 1 lee time ostroke, would I 131111011 through a distance equal to circular pitch, out this is sad because the sine and nnn'her of -h determines the of the pinion,

rmed on the circumot a pinion adapted for ten teeth, would he too nall and line for con'nnercial use in. an add 1g machine, wherein the pin ions and drive members are relatively enhlc and disengageahie, and cr tremc ac- 21C 7 or operation is required to d termine the .k'e ot' the drive member; the angle through which the counter turned thereby, and, in listing machines, the correct positioning of the proper types at the printing line.

One object of the present invention is to increase the range of COIILPU'lLZtlilOHOf which machines designed and built for operation according to the decimal systen'i, shall he capable of extension, by enal'iling the installation in such machines, of means to accun'rulate frac'tiors, the units of which are of lesser value than tenths, Without changing the coi'istruction oth er than in. the particular denominational trains of mechanism directly affected.

I carrying out this object, I have contrl ed. to compound the leverages in such manner that the throw or travel thereof in the space usually provided for the operation of the regular drive members, results in imparti'ng a greaternumher of increments of nioven'ient or steps to the counter, than the regular drive members are capable of imparting; to theircountcrs, which enahlcs the use of pinions and drive members having the same sized teeth as in the decimal ace-uninlating denominations.

To this and other ends, my invention includes certain novel features and combinations of parts, all ofavhich will more full? set forth hereinafter and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is lonq'i' udinal oss-sectional view throu calcr .ing machine, on'

1 in 3,shor-.ingtheusuain'iecha-nisn': for accumulating and listing in accordance with the decimal system;

i i n is a similar View, on line A-11 of .l 23, showing one emhmlimeut olf my in ventii'in as applied to a decimal calculating inacl'iine, for iLCIUHlIlLt-tlllg sixteenth tram tions;

Fig. 25 is a fragmentary to plan view, illustrating the combination oi the sixteenth iliraetion accumulating mechanisn'i, with the decimal accumulal ing mechanism;

l ie. al: a detail side view of the denominational counter for sixteenth traciions;

5 is a detail edge view 01 the same, showing the separate eari'y tripping and total alin" g; members; and

ti is a t liagrz'unmatic riexv oi' the drive mechanism tor the l l'ilt'bltll lill eounte".

The Well known Yl ales calcul ing inaales 880.15? l ehruary if), 1908; B "lm'd 1,0653] 01-. jiugui 3, 1913, and 1,112,516, ()0 toher 3, 1i Wilggus 1,1il2hi1fil3, Inarch 30, 1" and euttarost :t tl lfl, tleptemher l, V v to which r ference is made for a more com 3 etc umlerstandmg: ol the meclnuusni in com ection with \YlllCl'l l have chosen to illusl' ate one emhoduuent ol' my nivimtiou, although the idea. is not cenhneil'm its appli- 4- i H u. M. i \(hlOlL 0 .10 .v a u l|]u(, unc.

Such machine is, in ell'ect, composed a variable number of denoininational trams o'l mechanism. each of which trains includes a I H H 11' numeial keys i t,

deuon'iinational row o: (Figs 1 and 3), a deuoniinational row ol stops 115, the individual members ol which are separately controlled hy the individual keys oi the sai-ne denomination, a denominaion-al counter 490 on which the digits repreen'ted hy the keys, are accumulated, a denominational rack or drive inclnher 310 tor the counter, the rack and counter being relatively engrageahle and disengageahle, a denominational .1yqmcarrier 514 operable syi'ni'hronously with the drive men'iher 310 and equipped with a row of types 561 corresponding to the inscriptions on the denominational row of keys 117, and a denomiualional print-inc hammer 510.

Means to advance and retire the drive racks. and to control the printing hannners, are. also provided.

The nui'ueral-hairing keys 117 of each de non'iinational train arranged in rows from 1 to 9 (see Fig. 3) extending from front to rear of the keyhoa rd, to compute in accordance with the decimal. system. Each key 117.is connected by a lever 116 to an imlividual slop (Fine. 1 anl 3), the stops heino' arranged in files corresponding with, and orally directly behind the rows n i s 11. the upper ends of the upwardly through ape-rtures formed therefor in a suitable housing 113.

Depression of any of the numeral keys 117 against the tension of its spring 180, rocks its lever 116 pivoted at 151, to project its corresponding step 115 above the upper ends of the remaining stops in the same denominational file, and into the path of its denominational rack or drive member 310 sun ported near its forward end, at 3G1 on front arm 31.2 journaled on a cross shaft 300, and at its rear end, at 350, to the upper end of a reararin 311 'ournaled on a cross rod 301.

A latch 114 common to each file of stops 115, and pivoted at 114 locks the projected stop in effective position against the tension of the restoring spring 180.

A restraining and restoring bar 205 supported in fingers 265" depending from a rocking bar 265, lies in front of the entire series of front arms 312 supporting the denominational drive members 310, to nor mally retain the drive men'ibers in their retired positions against the tensions of individual drive springs 383 connected to the rear supporting arms 311 and to the restraining and restoring bar 205, respectively.

In such position, tle front ends of the drive members 310 lie in rear of the rearmost stops 115 of the respective denominational files of stops, the stops in each file bein arran ed at raduated intervals alon b a the line of advance of their corresponding drive members 310, to arrest the latter at various points in their advance.

-In an adding operation, after the numeral keys 117 representing the amount to be accumulated, have been depressed, the main drive shaft 200 (Fig. 1) is turned on its forward stroke, against the tension of the restoring spring 285 connected to a era nk 228 on the main shaft, to withdraw the rcstraining and restoring bar (through mechanism not herein shown, but full disclosed in the above mentioned patents).

The restraining and restoring bar 205 on it: withdrawal, further tensions the drive springs 3S3 to advance the drive members 310 until the latter are arrested by the projected stops 115, or by denominational detentsQ'zZl journaled on a cross shaft 202 and overlying the respective files of stops.

The stops 115, when projected to effective position, displace the corresponding detents 221, the remaining detents operatingto arrest the drive members corresponding with those denominations wherein no keys 117 have been depressed.

In an adding operation, the drive members 310 advance relatively to their denominational counters or numeral wheels 490,

the latter being journaled for independent rotation on a. counter axle 4-00.

individual pinions l- 'lf (inning with each count arc adaptcd to mesh and unmesh with thcir corrzspomling racks or drivc members 2310. Normally the counters H remain discngapjcd from thcir drive mcmhers Sit), Us shown in Fig. l. 'Thc (ll""il'( mcnt and discngagemcnt of thc counter pinions +35 and their drive mcm'bcrs is cli'ccl'cd through mcchanism (not hcrcin shown, but disciosci'l in lv'ilgus 1,1335%) operated by the main drivc shaft 200.

Thus, in an adding operation, as the main drive shaft approaches the end of its forward stroke, and after the drive mcmhcrs 310 have completed their advance, it trips counter-disengagi11g and supporting mechanism not shown) to enable the counters to engage their drive members, such engagement continuing throughout the return stroke of the main drive shaft, during which the restraining and restoring bar 205 prcsscs against the forward arms 312 to retire the drive members 310, until, near the end of the return stroke, and after the drive mcmhers are retired, the main drive shaft acluates the coun-ter-discngaging and supporting means (not shown) to lift the counters out of mesh with their drive members 310.

The drive members 310 during their retircment, turn the counters 190 to register thereon the amount set up' on the keys.

The main drive shaft 200, near the end of its return stroke, operates the usual rock shaft 201 (Fig. 1) to swing tappets 252 can ri-c'd thereby, against cars 114 of the latches 11% to release the latter and free the projected stops 115 and depressed keys 117 to the action of their restoring springs 180.

The counter pinions 13.3, in the present instance, are each equipped with twenty teeth, and the counters are cach inscribed with two sets of digits from 1 through 5 to, and including 0, in ascending order, arranged in tandem or succession at stepped intervals about the periphery thereof, so that if a counter stands with one of its zeros, at the reading line, a half revolution will turn the counter until the zero of the second set of digits appears at the reading line.

In effecting decimal accumulations, it is never necessary to add a digit greater than 9, and hence, the travel of the rack or drive member 310 need never, and in practice, does not exceed the distance necessary to turn the counter from 0 to 9, or a distanoc equal to nine times the circular pitch of the pinion 135, plus a sufficient clearance to accommodate pla of the parts, and to lift the cipher types to the printing line, as is well understood in the art.

Also the housing 113 is of a width to conveniently accommodate a file of but nine stops 115,

Oppositely extending trip arms 411 (Fig,

1) suitably located on the counters operate triggers (512 against the tensions their springs 681, to release the custon'iary carrying members (not shown) for operation, as the counters pass irom 9 to O at the mailing line, whereby to trauisler the 1] to the counter o'l' next higher denomination, all as more clearly explained in the patent to McFarland and il ales 880,15I, I heretofore referred to. In the usual lorm, the laterally turned lip 61''! oi each of the triggers lies in the path of rotation o trip arn'is alll, there being; a trip arm each series oi digits on the counter, t opposite ends of which trip arm lie in a common plane.

.Thc carrying trip arms 11 also operate in the usual il zi-les construction to arrest the counters 190 with the Zeros at the reading line, by contact with the total alinement bar 112 journaled on a cross rod 103 and normally in idle position.

' \Vhen it desired to clear the machine, the total aliriement bar is rocked into the paths of travel of the trip arms 1 to arrest the latter- When the conntc are in their Zero positions, all as set 'lolth in U. S. patent to Bicli'l ord 1,0(39,1 above mentioned.

To ellj'ect the imprint oi amounts set up on the keyboard, each supporting arm 311 (Fig. 1) rocks a. rearward extension 311" thereof, a link 515 connecting each individual extension 311* with its correspoiuling denominational type bar or carrier 5141-, the head of which carries a row or" types 561, the members of which correspond to the inscriptions on the associated row of keys controlling the respective typecarriers.

It is obvious that there must be such relation of the intervals between the stops 115,

the intervals between the numerals on the counters 190, and the intervals between the types 561, that a harmonic motion results, whereby the rack or drive member 310, on its advance, and after its arrest by the vstop controlled by the 3 key, for example, Will have lifted the 'typecarrier 51% to position the 3 t at the printing line, and will also, on its retirement, turn the c unter through an are equal to three times circular pitch, to accumulate the 3 thereon.

o 580, which drive the hamine s again t plunger 672, to force, the lat at c ct an nnpress on elf the types,

ran V the hannncrs are recoclted o} the main (.lllVG shalt during its return stroke, and the drive members 310, during their lfCtll'QlllQllb,

lower the extra nons 311 and type carriers which snap the la ches to eii'ectivc relatively to the rececl-Led hamn The foregoing s the struction and constitutes ent invention only in so with the novel featin'es forth.

Adaptation of the foregoing decimal calculating mechanism to the accinaulation of fractions, as quarters, eighths or other fractional divisions of greater value than tenths, has heretofore been readily accomplished by inscribing the periphery of a counter with two sets of fraction designations, as eighlhs, for instance, arranged in tandem, in ascending order, with ciphers or blank spaces intervening between the two usual a part of the pres c as it combines hereinafter set sets, the fractional designations beingequally spaced about the periphery. Such counter generally occupies the lowest denominational position on the kcylmard, and is equipped with a pinion of the same diameter as the regular pinions 435, but having 1(S equidistant teeth inst ad. of 20, lT cd to inch with a rack similar to the regular dri e; ineaiibers 310 except that it carries 9 teeth S j l11QWl1ill7 larger than the usual 11 teeth on a decimal drive member. Oppositely extending carry-tripping arms on the fractional counter, and similar to the regular tripping arms 411, operate the transfer mechanism to effect the registration of the excess 1 on the counter of next higher denomination when the capac ity of the fractional counter is xceeded.

The 'arrying meehz-raism will thus he tripped at each hall. revolut on oi th counter;

' lcre teeth of the fractional counter is slightly greater than thecircular pitch of theregular counters, and the fractional designations are inscribed at correspondingly greater intervals about the periphery of the fractional counter.

In .addition, the seven stops for arresting the fractional rack or drive member arev 1 drive member beyond the length of stroke of the regular drive members of the decimal accunnilating machine.

To adapt a decimal calculating machine to the accumulation of fractions of-lcsser value-thantenths, however, presents an en- ,tirely different problem, in view-of the limited'space within which the supportingarms 312.311 may swing, and the consequent limit to the stroke of the drive member 310, coupled with the restricted width f the housing 113, which is proportioned for nine stops, and while it is possible, by utilizing the clearances, to equip decimal calculating machines. with means to accumulate according :tow the duodecimal system. .the same principle'is not capable of extension to enable these machines to accumulate sixteenth fractions, owing to the fact that at times it is necessary to turn the counter through I fifteen-sixteenths of a complete circle, by the stroke of the driving rack in a substantially rectilinear line, and the limits are not suiticientl y con'iprehensive to permit such scope of travel of the driving rack.

Therefore, I have changed the construction ofthe counter drive mechanism to enable the latter to operate 'in the restricted change inthe proportions of the frame and major. elements of'the decimal calculating machine to which it is applied.-

Intact, my invention is merely substituted in place of the units or other selected train of dcnon'iinational mechanism of tllc decimal calculating machine.

.Pursuant thereto, I replace the units bank of keys 117 of the decimal calculating ma' chine. with two rows of fraction-dcsignated keys 117 117 .(Fig. 3) the eight odd-numbcrcd fractional keys from 1 to 15, in one row. and the seven evcn-mimlnwed keys from 2 to 14 in the remaining row.

Lc\'ci's,-not shown. but similar to levers 116 connect the keys 117 individually with their respective stops 115. the free ends of which project upwardly in file through the housing 113.

Similarly, levers 116 (Fig. 2) pivoted at- 151 connect the keys 1'17" with the corresponding stops 115 arranged in afile alongside the file stops 115, (Fig. 3) the files of stops 115 and 115. being relatively stag-= the detents, whereby the displacement of either detent will carry the remaining detent with it.

The stops 115 and 115 arrest the ex: curs-ions of a single bifurcated positioning bar or member, one branch 310 of which, coacts with. the: file stops 115, the remaining branch 310 adapted to coactwith the file of stops 115. The branches of the bifurcated positioning member are respectively pivoted intermediate their ends, at 361. to the upper ends of front supporting arms 312' similar to the regular front supporting arms 312, the rear end of the forked or bifurcated positioning member being pivotally connected at 2 to the forwardly projecting arm of a bell crank lever 33 'journalcd on the familiar cross shaft (307. lhis lever is 'cut away or recessed, as at 4, (Fig. 2) to clear the usual shaft (500 on which are journalcd the carrying rockers of the well known \Vales calculating machine, reference being directed to the pending application of A. Pentecost. Serial No. 23.306. filed-April 23, understanding of this mechanism.

A spring 2385" (Figs. 2 and 3) connected at one end to an ear 5 on the bell crank lever 3. and at its opposite end to the restraining and restoring bar 205, operates to advance the lever 3 and positioning mci'nbcr 31!). 310. until the latter is arrested by the dctents 221 or by any of the stops 11.5, 115

in this; connection. I would direct atten- 1015 for a more complete tion to thc fact that tlw'arrcst of either spaced equidistantly about its peripliery'to indicate sixteenth fractions. The counter 4,90?.--is journalefd ,on.;the counter axle 4:00!

in line with therregular counters and carries a pinion i255 of substantially the same diameter as the regular twenty-tooth pinions 435, but having sixteen teeth to mesh embodiment to effect the same result.

"1 310",310 between successively alternate .By arranging the fifteen stops 115", 115 in two files, and staggering the-individual stops of one file relatively to those in the remaining file, a slight increment of ad vance is permitted the dual positioning bar stops in the respective files.

In other words, and as shown in Fig. 3, the rearmo'st stop of the file of stops 115 is- 1 slightly in advance of the rearmost stop in the file of stops 115 and's'o' on.

Obviously, however, the distance .through which the. dual positioning bar. advances from therearmost stop ofthe file 115 to therearmost stop of'the file 115 is considerably less than 'the distance-between the regular stops 115.-

On the other hand, the numerals on the fraction representing counter 490 are;

spaced farther apart-than are the-numerals on the regular-counters 490'and the same is true of the circular pitch of the sixteen "teeth of the fractional pinion 435" as compared with the twenty teeth of the'regular pinions 435. i

The problem is," then, to enable the dual positio-ningmeiiiber (whose respective increments of movement, broadly speaking,- are each of less length than the respective inerements of movement of the regular rack bars 310) to advance the segment or drive mem her 7 through a greater angular distance than that through which the regular rack bars advance.

This means, in effect, that while the same number of teeth on thesegment- 7-,are em-' 'ploy'ed to turn the fraction pinion 435" through two increments of movement, for instance, that are required by the regular rack bars 310 to turn the regular pinions 435 through two increments of movement, yet, because of the greater circular pitch of thefractional counter, its pinion and segcounter, its pinion and drive rack, therfor i-mer.-actu'ally tranverses a greater angular distance than the latter.

In solving this problem, I "have devised a' compound leverage, whereby the slight increments ofmovement permitted the positioning member 310", 310, by the digital stops *,115", are amplified to advance the segment 7 to its proper position relatively to its counter and pinion.

'As is well known, the amount of throw or movement imparted by a' rotating crank to a driven part is at the minimum as the crank approaches-and leaves its two dead center positions, and is greatest as the crank passes. a point half way between its dead center positions.

I utilize this principle in the present instance, the segment 7 corresponding. to the driven member and the lever 3 to, the crank.

Thus it will .be seen thatthe radiu607;' 5,

(Fig. lies at' a considerable angle to the dead center radius '607, 600, when the parts are-in their home positions, shown in Figs. 2 and 6, and further, that the- radius 600, 8 lies at'suJbstantial-ly right angles to a line drawn between the fulcrum 600 of the -toothed'segment and the point 5-at1which the transmitting link 6 is connected to the drive lever 3, 'so that 'immediately the lever 13 commence its advance, it will.'ro'ck the toothed segment] through the 'link 6, on its arc'of travel of greatest activity.

"Ifthe lever-3 .was directly connected to the segment 7, the travel of the latter,-,espe cially when advancing to thehigh'er values of sixteenth fractions, would :slow up, be

cause the radius607, 5, would constantly approach nearer the dead center line 607, 600,;to "avoid which Iinterpose the link 6, connected to the lever'at 5 and to the segment at 8. By means of this connection, I compound the leverages 607, 5, and 600, 8, in such manner that as the radius 607, 5 approaches the dead center line, the radius 600, 8 shifts farther away from its dead center-line, to compensate for any slowing up of the radius 607, 5 andeifect a constant advance of the segment 7.

The fraction counter 490" with its pinion 435 moving with the regular counters 490 and their pinions, drops into mesh with the segi cut 7' at the end'of the forward stroke of tie main shaft 200, and therestraining and restoring -bar 205 by'it contact with the front arm 312', retires the'lever 3, link 6 and segment? in the same manner that it retires the regular rack bars 310.

Because the fractional, counter 490* is arrangcd'to make a complete revolution before a transfer-is efi'ected'onto the counter of next higher denomination (the units counter in this instance) a slight change is necessary in the carry tripping and zero-resetting mechathe respective denominational counters 490,

the opposite ends of each arm 411 lying in the same vertical plane.

As seen in Figs. 3, 1 and 5, the fractional counter 490" carries a radially extending carry tripping meinbe'r M1 to contact. the lip ($12! of the spring-pressed trigger (312 of the -arrying mechanism, the radial member not extending diametrically across the counter. And since the location of the radial tripping member is such relatively to the peripheral arrangement of numerals on the counter, as to trip the carrying trigger (312 at the time when theicountcr passing from 15 to 0 at the line of sight, it. will not arrest the counter with its 0 at the sight opening during .a clearing operation. for which #reason, the counter 490' carries a second radially-extending zero-alining member lil ar 'anged in a plane parallel with the trigger-tripping member 411* so as to avoid contactwith the trigger lip (312 The outer end of the zeroalining member 411 is turned laterally away from the:trigger-tripping member,as shown in Figs. 3 and 5, to contact the total alinemeut bar 412 which, it will be noted, is recessed at 412' in line with the triggertripping finger r11 to allow the latter to pass when taking a total or clearing the ma chine.-

In order to print the fractions set up on the two right hand banks of keys 117}. 117. I provide the lever 3 with a marwardly and downwardly inclined extension 9 (Fig. 2.). A short link 5315 connects the extension at- 10. with the lower end of a ty 'ieearrier, 514, whose head is equipped with a vertical row of types 561 from 1 to 15.

A re ular impression 'mechanism. including a hammer 510. driven by a. sprin and restrained by an individual latcn 511 and the universal pawl 518. strikes a firing pin or plunger 582" to drive the latter against. any of the types 561 which may be. positioned at the printing line on the platen 2094-.

A spring-actuated bar 513" '()i\tl'0ll(l l)y the. extension 9, releases the individual latch 511 in the. same manner as in the regular denominations and heretofore explained.

Preferably, the uppermost. type member which in the other denominations prints a cipher. is'replaced in the fractional denomination by a dummy 563". which makes no impression on the paper when no fractional kev has been depressed. or in totaling. wh n the fractional counter -l-90" is at zero.

()bviously the. positioning of the types 5M at the printing line is controlled by the throw of the long radius (507, 10 regulated by the stops 115-. 115, whereby each slight in crement of advance permitted the dual positioning bar 310, 310 by the successively al ternate stops 115-, 115 is increased to lift, the typerarrier 514; a distance equal to that between the centers of the respectively successive types 561".

it is obvious that my invention is not confined to the calculation of sixteenth fractions only. but may be adapted for the accumulation of any fractional divisions, and may be used in machines equipped to calculate monetarvalues of foreign countries based on other than the decimal system, by alterations in the length of the radius 600, S, or 607, 5, and it is just. as applicable to the calculations of fractions of greater unitary value than tenths, as to those of lesser value.

. Changes may be made in the form and arrangement of the several parts set forth, withoutdeparting from the spirit and scope of myiuvention.

hat I claim as new,

1. In a calculating .maehine, the combination with regular accumulating mechanism, including counter pinions; and driving racks therefor, having a. limited stroke, and witlL which the p inions engage and disengage; of aspecial counter pinion having its teeth arranged at a greater circular pitch than theteeth of the regular counter pinions; an actuating member therefor, having a longer path of travel than the driving racks; a positioning. member having a stroke substantially equal to the stroke of the driving racks; and acompound leverage to connect the positioning member and the actuating member for the special counter pinion. whereby the limited stroke of-the.- positioning member is augmented. when transmitted to the actuating member.

2.111 a calculating machine, the coinbination with a regular accumulating meeha: msm. nn-huling counter pnnons; and drivmg racks with whiclrthe pnnons engage and disengage} of a special counter pinion asso-' ciated in series with the regular counter pinions: :1- pluraiity of rows of keys to control the angular rotation ot'special counter; a plurality of files of stops corresponding with the rows of keys. the stops in one file arranged in staggered relatiolrto the stops in the. :uljacent'lile: a singlepositioning incuibgmlmving branches to (oaet with the respective files of stops: a. swinging means to support the forward end of the positioning member; a Fulcrumed driving lever eon-' nected to the positioning member to shift the latter; an actuating member for the special counter: and a link connection between the driving lever and actuating HIcIRlKl.

23. in a calculating machine. the combination with a regular zu-cunmlatiug mechanisrn, including counter pinions; aii'ddriw ing racks with which thevpnnons engage J l-Kl-LliSQngage of p a special counter pinion associated 1n serles with the regular counter pin'ionsj'; a plurality ofrows ot' keys to control the -angular rotation of the special her, the radius between the fulcrum of the Ipinions; a plurality of rows of keys to con-.

anism, including counter pinions; and drivdriving lever and the point atwhich the link is connected to. the lever, being longer than the radius between the fulcrum of the lever and the point at which the positioning member is connected to the lever.

.4. In a calculating machine, the comb1- nation with a regular "accumulatingmechaing racks =with'which the pinions engage and ,disengage; of a special counter pinion associated in series with the regular counter trol the angular rotation of the special counter; a-plurality of files of stops corresponding with the rows of keys, the stops in 3 the; stops in the adjacent file; a single posi one file arranged in staggered relation to tioning member having branches to coact with the respective files of stops; means to support the forward end of the positioning 40- nected-to.thepositioning member to shift member;" afulcrnmed driving lever conthe. latter; an actuating member for the special counter; and a link connection between the' driving lever and actuatlng memher, the radius between the fulcrum of the driving lever and the point at which the link is connected to the lever, beinglonger than the radius between the fulcrum of the lever and the point at which the positioningmemher is connected to the lever, and the point of connection of the link to the actuating member bearing a" definite'relatlon to the the lever and the point at which the link is .:,connected to the lever.

5. In a calculating machine, the combination with a regular accumulating mechanism, including a series of denominational counter pinions: and driving members therefor, the pinions and driving members adapted for engagement and disengagement; and

denominational files of key-set stops to control the'excursions of the driving. members;

of a special counter pinion associated in series with the regular counter pinions, and having teeth differing in circular pitch from. the teeth of. the-regular counter pinions; an actuating member therefor having teethof a corresponding pitch and adapted to have a longer travel than the drive gmembers for the regular pinions; a plurality of files of key-set stops; a single positioning member having branches to coact with the respective files of stops; a 'fulcrumed'drive lever connected to the positioning member; and a link to connect the-actuatingmember. with the drive lever at. a point further removed from its fulcrum than the point of connection of the positioning member and lever. I

6, In a calculating machine, the combine tion with a regular accumulating mechanism, including a series of denominational coum ter pinions; and driving members therefor, the pinions and driving members adapted for engagement and disengagement andwdeinominational files of key-set stops to control the excursions of the driving members; of a-special counter pinion' associated in series with the regular counter pinions, and having teeth differing incircular pitch from the teeth of the regular counter pinions; an actuating member therefor having'teeth 'of a corresponding pitch and adapted to; have a longer travel than the drive members for the regular pinions; a pluralityoffilesmf key-set stops; a single positioning member having branches to coact with the respective files of stops, the positioning member", having a. maximum excursion substantially equal to the maximum excursion of the regula r driving members; a fulcrumeddrive lever connected to the positioning member; and j a link to connect the actuating membei. with the drive lever at a point farther removed from its fulcrum than the pointof connection of the'positioning member and lever.

7.- In a calculating machine, the combination with a regular accumulatingmechanism, including a series of denominational counter pinions; and driving members therefor, the pinions and driving members adapted for engagement and disengagement; and denominational files of key-set stops to control the excursions of the driving members; of a special counter pinion associated 'in axis of rotation of the actuating member, d series with the regular counter pinions; and

"andto the radius between the fulcrum of having teeth differing in circular pit-ch from the teeth of the regular counter pinions; an actuating member therefor having'teeth of a corresponding pitch and adapted to have a longer-travel than the drive members for the regular pinions; a plurality of filcs of kev-sct stops; the stops in one file arranu'cd ill stz'iggered relation to the stops in the adjacent lile, the intervals between the stops in alternate files being less than the intervals between the stops in the regular denominational files; a single positionin airman (y l' iurl'in )M'E the rear end (11 v 1510x115 to rod excursions a e conntoi- 321111011 may pm. E ad rm 10mm! in positifinmg 11L drive have? gn x Railing mum (x-mire the drive 21min 19 stops "JOSH; 011mg apriated to cad bi branch :1 series of denom mv filed on the aide, and 1 arranged at a pi'udoml-xni110d 1 alenomim Mona] ruvlpl'ocni'uw puns L 6062x113? suppo f biticming membux rive: lever to which I l 1 member is pivscally connect C V 1 i Vance and retire the drive to connect the actuating me,

crumeai Liza i'espocfjiva corrosyxSnding {he pinimzs adapt-- (401mmimvimml 1211*- drive -iever A, n. fulcrum 0'5 L the position]: drive lever. 16, in nation with ing member i 10 pin-inns; and

plum? 11.21101: 0'? any w zziinomo'nt baush! idrive lover; mean Q: r-iiiripp'mgg mm us so :u'lvst the 1 member 14w zero posliimiw: a iructmn and (111% timing mammal I, drive RW and, 1m vim:

than the swim:

sir-(i211.

and member offset "530' gentmppmgg 111 311113, am

the total alinemeng. b

in its zero position, the 'wtni :zlincnlent bin bemx recessed to nernni. the 3: we (1 the C: llv L D acfinnting member therefor having an arcunte Travel; :1 series of files of snfitnblo stops; nv positioning member hm'ing n b nnch nppr printed to each file of stops n. snitabl y' .lcinmed angular drive lever 0 one arm of which the positioning 11101113102;- is pivotnlly connected; in euns 1 0 advance and to retire The drive Raver; and means to mm. neck the actuating member and nnothcr arm of the drive lever.

13M); SCHUPPE.

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