US1874365A - sburlino - Google Patents

Description

3(1), 1932. v P SBURLlNO 1,874,365

CASH REGISTER Filed March 1, 1929 4 Sheets-Sheet l FIG. 1

Hi8 ao: up

Aug. 3o, 1932. P; BURUNO 1,874,365

AsH REGISTER Filed Marh l. 1929 4 Sheets-Sheet 2 Aug. 3o, 1932: P. S'BURUNO 1,874,365

CASH REG ISTER Filed March l, 1929 4 SheetsfSheet 3 Hi' aumunp By Ml Sburlno Aug. 30, 1932. P. sBURLlNo CASH REGISTER Filed March l, 1929 4 Sheets-Sheet 4 Patented Aug. 30, 1932 UNITED STATES PATENT OFFICE PASCAL SBURLINO, OF DAYTON, OHIO, ASSIGNOR TO THE NATIONAL CASH REGISTER COMPANY, OF DAYTON, OHIO, A CORPORATION OF MARYLAND CASH REGISTER Application led March 1,

This invention relates to improvements in key release mechanisms for cash registers and the like, and is more particularly directed to the type shown and described in United f States Letters Patent, issued to B. M. Shipley, No. 1,619,796, on March 1, 1927 and No.

1,602,596, on October 12, 1926.

As illustrated in the foregoing patents, there is provided a keyboard comprising a plurality of rows of amount determining keys for use in setting up the amounts to be registered, and one or more rows of totalizer selecting keys to enable the operator to select the particular totalizer or totalizers on l5 which the items set up on the amount keys are to be accumulated.

Suitable and Well-known mechanism is provided to latch or detain the depressed keys in their set positions, which key-detaining mechanism is actuated near the end of the operation of the machine to release the depressed keys, so that they may restore to their normal positions preparatory to the next operation of t-he machine.

It is also customary to provide a lock for the drive mechanism of the machine which prevents operation of the machine until a special key is depressed to release such machine lock.

Conveniently, the detent-releasing mechanism for the keys of the keyboard is combined with the machine lock releasing mechanism, it being necessary to depress the special key to release the machine lock. Simultaneously with and incident to the release of the machine lock, the detent-releasing mechanism for the keys of the keyboard is shifted in one direction to lock the detents against movement and thereby prevent restoration of the depressed keys or depression of any keys at that time in normal position. Then, near the end of the operation of the machine, the detent-releasing mechanism is shifted in the opposite direction to release the key detents and enable any depressed keys to restore to their normal positions. At the same time, the machine lock is restoredto effective position, after which Y the detent locking andreleasing mechanism returns to 1929. Serial lNo. 343,665.

its normal home position intermediate its extreme limits of movement.

Obviously, the operation of the detent-releasing means near the end of each operation of the machine to enable the depressed keys to restore, necessitates re-depression of the keys in setting up a second amount to be accumulated in the machine, but it is sometimes desired to add the same identical amount a, number of times successively.

This result has generally been eiiected in the prior art, by providing a` special key, depression of which disables the detent-releasing mechanism to prevent itfrom shifting the key detents so that the depressed keys representing the amount to be again added, will be held in their depressed positions.

But in they present machine, due to the combination of the machine-locking mechanism with the detent-releasing mechanism, such disabling of the detent-releasing mechanism would be undesirable, because it would necessitate the provision of a more or less complicated means to insure the efficiency of the machine-release lock, and to guard the detent-release mechanism against improper operation.

Therefore, one of the objects of this invention is to equip a machine with novel means whereby amounts set up on the keyboard may be repeatedly added, by the retention of the depressed keys in depressed position, or whereby different amounts may be successively added, at the will of the operator and Without changing the normal relations between the machine lock and detent release mechanisms.

To accomplish this object, the control of the detent-releasing mechanism is removed from the special machine-lock-releasing key, and is vested in a second special key, as a result of which arrangement, the release of the machine lock through the first-named specialkey permits an operation of the machine, Without operating the detent-releasing mechanism to release the keys, so that the depressed keys remain depressed at the end of an operation preparatory to the repeated accumulation of the amount represented thereby.

But since it is desired that the machine be able tohandle different amounts or items successfully, the machine is so contrived that depression ofthe second-named specialkey renders the detent-release mechanism eii'ective so that the depressed keys will be freed Vto the action of `their restoring means, at the V'end of each operation of the machinethus initiated.

The second-named or non-repeatv Vspecial key is located, in thepr'esent instance, at the left hand side ofthe keyboard where it may not be as conveniently and quickly depressed, andk as-.much of the workperiormedon maa other object of theinvention is 4to provide means which will enable the operatorV to use the iirst-named or yrepeat specialy key tore- Vlease the machine forl operation and yet ef-.

ect kthe restoration of the depressed amount 1 keys at the' end oi .the operation.

thevnon-repeat special key in depressed pof Vith these andiiicidental objects in view,

the inventionconsists of. certain'novel fea tures of construction and combinations of parts, theV essential elements V- of which are setforth in appended claims and a preferred form or embodiment of which is hereinafter described,withreierence to the drawings which accompany andform part of this spec- Y ification.

n the drawings: y Y Y F ig. l is a perspective view of the machine with its cabinet.. Y Y

Fig. 2 isa detail side view of the means to Llatch the special non-repeat keys, when. depressed, in such positions, and also shows4 the control of the detent'releasing means.

Fig. 3 is a detail view of the mechanism controlled .by the non-repeat special key to release the machine lock.

Fig. 4 is a detail side view of the coupling mechanism wlierebyrrthe detent releasing mechanism is rendered eiie'ctive Viior releasing the amount and transaction keys.

Fig. 5 is a detail View of the detent-releasing mechanism, withV the detent for holding sition. Y

" Fig. 6 is a side elevation-of the machine,

`illust-rating parts pertinent to4 the present invention.

` Fig. 7 is a. detailview of the mechanism controlled bythe special non-repeat key forreleasing the machine lock.

VFigf is a cross `sectional View taken to the'rightof one of the amount banks and diierential mechanisms, showing the key devtents and the means to shift the detents relatively tothe keys. Y Y Y r .Y

GENERAL DESCRIPTION vThe well-known machine tot. which theV present invention is shown applied, is pro.

. the machine. chines ofr this type does not require the re- Y Vpeat-ed accumulation of the same` item, an-

leased for operation by depressing the machine release key at the right hand side of ln this invention, the usual detent release mechanism for the amount keysis normally ineffective for .releasing the keys during the operation of the machine', and,tliereiore,.the same'V amount Vcan .be repeated by merely release key... Y

A second machine release key has beenprovided forereleasing the machine' when it is desired to enter an amount only once, that is, when entering Vdifferent amounts successively.` lease key operatespto `couple the' detent-re again pressing the above-.mentioned machine Depression 'of such-'second machine re-Y leasing-'device to itsoperating mechanismso asfto effect therelease ofthe-depressed Y amount keys near theend Vofthe operation of the machine. e I. It. is'often .desirable to entera number of different: amounts successively, and itis ap-V parent that, in general,.r the' righthand Ama-'f chinevreleasekeyis the most convenient to use .for releasing. the. machine.y Therefore," a special key is provided, which,r upon'beingl depressed, .will couple .the detent-releasing mechanism with the machine release, con-f trolled bythe rightrhand machine release bar,

. so that upon operation of suchbar., with-the;

special fkeyvin rits depressed f positionfthe amount key release. mechanism will; be `oper` l ated to enable the amount keys to .restore to normalnear'the end ofJeach operation .ofthe machine initiated by the depression ofthe' right hand machine release bant This special key is located adjacent Y handmacliine releasefbar and is preferably whatis knownintheart asa stayfdown key,-

that is,this key will `remain in vits 'depress-ed.

positivonindeiinitely. Y The special key is only releasablefnear the endof anfoperation of the; initiated by Vdepresi machine which as been sionV of the left handfmachine releasekey.

'DETAILED nnscrlr'iioir Keil/board As shown in Fig. l, the machine is provided f with'six ybanks of amount'keys 30, of thel well Y known type-shown and Vdescribed in tlieabojve'Av mentioned patents.v The machine is -a'lse provided with a bank of clerkskeys'jl, abank of departmentkeys 32, and a bank of special transaction keys 33. The function of the three control banks 31, 32 and 33, forms no part yof the present invention, and therefore, no further mention thereof will be made herein.

The machine is also provided with a machine lock releasing key 34, (Figs. 1 and 6) conveniently located to the right of the control bank of keys. This machine lock releasing key will be referred to as the repeat lock releasing key.

j The usual total lever 37 is located between the row of transaction keys 33 and the right hand or repeat machine release key 34, to

control the machine for total taking opera.

tions.

The machine is also provided with a series of ledger number' keys 38 for use in printing designating numbers, which are not accumulated. The ledger number keyboard and the printing mechanism encased in the extension 39 of the cabinet, form no part of the present invention, and will not be further mentioned.

Operating mechanism The machine can be operated either by yan electric motor (notshown) or by the operating handle (Figs. 1 and 6) sleeved to a pinion 47 meshing with a gear 48 which drives a gear 49 secured to the main cam or drive shaft 50. The ratio of the gears is such that two complete operations of the handle 45 will effect one complete rotation of the drive shaft 50.

Key banks The denominationally arranged amount .keys 30 (Fig. 8) are slidably mounted in key frames 46, supported on cross rods 51 and 52,

extending between the side frames 58 and 59 (Figs. 8 and 6) of the machine, in the usual and well known manner. Each key is p rovided with a pin 53 which, upon depression of the key, cooperates with the usualshiftable detent bar 54 associated with that row in which the key is depressed, to hold the key in its depressed position. Links 57, onlyv one of which is shown, pivotally support the detent bar 54 at its opposite ends, and a spring (not shown) holds the detent bar in, and returns it to, its normal position. Depression of a key 30 presses its pin 53 against the corre- ;.sponding beveled hook of the detent bar 54 to cam the detent bar downwardly until the amount. Y

Machine release mechanism It is customary, as fully set forth in the patents mentioned at the beginning of the specification, to provide means to normally lock the machine against operation.

Such lock includes a detent 91 (Fig. 3) journaled on a'suitably-supported shaft 92, a spring 127 holding the free end of the detent in the path of a stud 89 projecting laterali from a locking arm 90 fast on a release shaft 56 journaled in the opposite side frames 58 and 59. Y

The release shaft 56, at a point adjacent the side frame 59 (Fig. 6) carries an arm 88 having a stud 87 projecting into a slot 126 in a link 86. This link also has formed therein an opening 84 through which projects a pin 124 carried by an arm 122 journaled at 123, to support the link. A strong spring 85 mounted on pilots in the slot 126, presses upwardly against the stud 87 of the arm 88 on the re-l lease shaft 56, to rock the latter clockwise.

But the operation of the release shaft 56 by the spring 85 is normally prevented by the contact of the locking detent 91 (Fig. 3) with the locking arm 90.

This lock is controlled from the machine release key 34, removably mounted on the usual slide 100 slot-ted to accommodate the guide pins 101 which hold it to the side frame 59.

A pin 103 (Fig. 7) on the slide seats in a bifurcation at one end of an intermediate lever 104 pivot-ally supported on a stud 105, the opposite end of the intermediate lever 104 carrying a pin 106 entered in a bifurcation formed in the arm 107 of a bail 109 journaled on the shaft 92.

The remaining arm 108 of the bail 109 is hooked to take over a stud 110 on the arm 114 of a second bail 112 journaled on the release shaft 56, the remaining arm 111 of .such second-named bail 112 being forked to engage a stud 113 on the machine locking detent 91.

Obviously, depression of the machine release key 34 and its slide 100, will rock the intermediate lever 104 against the tension of its restoring spring 115, and the lever 104, through bails 109 and 112, will displace the locking detent 91 from the path of the stud 89 on the locking arm 91 fast on the release shaft 56.

Thereupon the spring 85 (Fig. 6) rocks the arm 88 and release shaft clockwise to one limit of its travel, the stud 87 being shifted to the upper end of the slot 126 in the link 86.

In motor driven machines, the release shaft 56 operates to trip the clutch detent and free the motor for operation, as shown in patent to Shipley, No. 1,619,796, referred to, the motor turning the drive shaft through one rotation, as also shown in such patent.

In crank-operated machines, the opera-tor, after depressing the release key 34, actuates the handle V45v through two rotations, which, through theltrain of gears 47, 48 and 49, imparts'a single rotation to the drive shaft 50.A

f5: Dz'fercatz'al mechanism ,Each denominational bank Vor row of amount 'keys 30 controls its diderential mech-V anism (Fig., 8) to effect the entry of the amounts set up on the keyboard into any one 10.or more selected totalizers 60. Since this f mechanism is well known in the art and is de-V scribed in detail in the above Vmentioned patents, only a very brief description will be given herein.

1'53 f Three lines of totalizers 60 are shown into during a single rotation of the drive shaft.l

Links 65 connect the-several bell crank levers 63 with their respective drivers 64 journaled in hangers 68 supported at intervalsbetween "-the side'frames 58 and 59.

A latch 79 pivotally mounted on each ac-k tuator 61, connects its actuator to the corresponding driver 64. This connection causes y the actuator 61 to be turned clockwise whenl 351 the driver is operated by the cams 62, until Y the latch strikes the inner end of the depressed keyBO, whereupon the latch 7 9 is disengaged from the driver and the differential actuator is arrested in a position .corresponding with '405 the value of the particular key depressed.

the selected ltotalizer' or totalizers 60 are shifted into engagement therewith, whereupon the actuator is returned to its normal or 4.5i home position by the driver 64, in a manner well known in the art. This return-. move- Y ment of the actuator 61 enters the amount on the various totalizers which have been engaged therewith. 1 Y l 1A zero stop pawl 65 is providedrfor each actuator, which pawl normallylies inthe path of a trip 'arm 67 connected to the `latch 79, to disengage the latch, and hence its actuator, from the associated driver64 when 7575i no key 30 is depressed in that key bank. De-

pression of a key 30 shifts a release bar 66 connected by means, not shown, to the Zero stop pawl 65 to rock the latter to its ineffective position. This mechanism is well known @il in the art and no further description thereof it thought necessary.

' The differential positioning of the actuators 61 is Vtransmitted to the indicatingand printing mechanisms through. the usual and S5-well-known beams 70, pivoted at their for-V ward'ends'fto therespective actuators, and bifurcated at their rear ends to embrace studs 69, mounted on connecting links l71 to adjust the latter according to the values of the keys depressed.V Y Y These links 71 are connected at their upper ends to segments 72, adapted to adjust mechanism, not shown, for indicating the amount set up on thefkeyboard', and at their lower ends, the links 71'are connected to arms 7 3 fast with spiral segments 74 journaled on a cross shaft 75 and meshing with spiral gears 76 secured to the individual shafts 77 to set type wheels (not shown) for printing the amounts set upv on the keyboard. This mechanism forms no part of the'present invention,` andv therefore, no further reference thereto will be made.

Near the end of the operation of the nia-- chine, the release-shaft56 (Fig. is restored to its normal intermediate position by a'cani' race 120, formed in the side of the beforementioned gear 48. It will be noted that the cam race 120 has two camming portions, because the gear 48 receives only one-half rotation foreach adding operation of the machine, and therefore, thel camming portions of the race will alternately operate to restore the release shaft 56. Y e

The supporting arm 122 for the link 86 carries aroller 121 adapted to traverse the cam race 120 in the gear 48. Thevstud 124 on the supporting arm normally lies in a notch ofisetfrom th'eopening 84 (see F ig. 6) in the link 86, and theprovision of the 'roll 121 in the cam race 120V prevents the arm 122 from yielding in clockwise direction under the tension of the spring 85. When the gear 48 nearlycompletes a.V half rotation, the cani portion'of thecam race `120 operates upon After the actuator 61 has been positioned,

lthe roller 121 ofthe supporting arm 122 to rock the arm downwardly in clockwise direction and draw the link 86 downwardly to its opposite limit of movement, after which the cam race restores the arm 122 position. Y Y Y y At the time when the camfportion of the race120 acts upon the arm 122, the stud 87 of the arm 88 lies at the upper end ofthe slot 126 inthe link, so that the link 86 will rock the arin 88, together with the release shaft 56 counter-clockwise to the opposite limit of its travel, and then restore the release shaft and its locking arm 90 to their normal positions intermediate their limits of travel. The spring 127 rocks the detentV 91 into the path of the stud 89V on the locking arm 90, as the release shaft 56 passes its normal intermediatel position in'counter-clockwise direction, to arrest and lock the arm 90 and the release shaft 56 in their normal positions to prevent operation of the machine.

to its normal Qontrol Vof lacy .release mechanism VAlso near the end of the operation of the machine, i. e., the single rotation imparted to the drive shaft 50 in adding amounts, it 1s desirable, when listing successive amounts ldiffering from each other, to effect the release of the depressed keys, so. that they may return under the influence of the usual springs (not shown) to their normal undepressed positions preparatory to the succeeding operation.

Torelease the depress-ed keys 30, it is necessary to shift the detent bars 54 downwardly far enough to disengage the hooked portions thereof from the pins 53 of the depressed keys. This effected by the bail (Fig. 8), the arms of which are loosely'mounted on the machine release shaft 56, the bail 55 being rocked in eountcnclockwise direction to contact the arms 78 (Fig. 8) of the detent bar supporting links 57 and rock them in clockwise direction, thereby lowering the detent bars 54 and releasing the depressed keys 30.

But occasionally, it is desired to enter the same amount a number of times successively in the machine, as in making up pay rolls, multiplying by repeated addition and for other purposes.

And the invention herein set forth relates particularly to means to facilitate the resto- ,ration of depressed amount keys at the end of a'single operation, or their retention in depressed positions throughout a plurality of operations.

Heretofore, the release shaft 56 on its counter-clockwise travel, has been utilized to shift the key detent bars 54 to idle position to free the depressed keys for restoration, by a suitable bail fast on the release shaft,

`adapted to contact the usual rearwardly projecting arms 78 of the upper links 57 and cam the detents downwardly.

- ln the present invention, changes have been made in the forms and functions of this and other features, a preferred embodiment of which will be now set forth.

The machine release key 34 of the present invention corresponds to the so-called motor bar of Shipleys Patent, 1,602,596, heretofore referred to, to effect the release of the detent which locks the machine against operation.

In the present machine depression of the release key 34 will release the machine for operation, and the operation will take place without releasing theA key-detent bars 54.

Therefore, the keys 30 Awhich have been depressed, will remain depressed at the completion of the operation, and by again depressing the machinefrelease key 34 and operating the machine, the former amount set up on the keyboard will be again entered in the machine, such repeated entry occurring as often as the machine release key 34 is depressed.

Forvthis reason, the machine release key 34 is called the repeat release key.

N oat-repeat key machine release In order to enable the operator toenter different amounts successively into thema-v chine, a. second machine lock releasing key 35 (Figs. 1 and 2) is mounted on the keyboard, which is called the non-repeat release key, depression of which operates to release the machine for operation.

This non-repeat key 35 is preferably locatedat the left of the bank of amount keys of highest value, and is equipped with a stud 130 (see also Fig. 3) which, in the present instance, extends through and projects from each side of the key shank, When the nons repeat machine release key is depressed, the left hand end of .the stud 130 contacts the forward arm of a lever 131, pivoted on a stud 132 mounted in the frame of the machine. The rear arm of the lever 131 is bifurcated to embrace a stud 133 carried by the left hand arm of a yoke 134 journaled on the release shaft 56. The yoke 134 extends across the entirev amount keyboard, and is provided at its right hand end with an arm 135, adapted to contact the before-mentioned stud -113 on the locking detent 91.

Hence, depression of the non-repeat machine release key 35 will displace the locking detent 91 from the path of the stud 89 on the locking arm 90, to release the machine fo operation. y

VAmount key release As beforefmentioned, the detent bar releasing bail 55 is journaled on the release shaft 56, and hence will not ordinarily be rocked by the shaft when the latter is turned in counter-clockwise direction past its normal position during the operation of the machine, and the amount keys will remain in their depressed positions. However, depression of the non-repeat release key 35 operates means to couple the release bail 55 with the release shaft 56 in the following manner.

The forwardlly extending arm of the lever 131, which is rocked in counter-clockwise direction by the non-repeat release key 35, as above described, carries a stud 140, adapted to contact the shoulder 139 of a depending control arm 141 (Figs. 2, 3 and 4) pivoted on the stud 139I in the key frame. The control arm carries a roller 142 at its free end, with which the arcuate edge of a coupling slide 143 contacts under the influence of a spring 144, coiled around the release shaft 56 and having each endv thereof connected with the coupling 143. The coupling slide 143 is radially slotted to embrace the release shaft k56 and slide radially thereof, the shaft 56 Depression` of the non-repeat release key rocks .the control arm 141 counter-clock- Wise against the coupling 143 to shift the lattei-1 farther over the shaft 56.

' lThe coupling 143 carries a stud145 (Figs. 27and' 4) which, When the coupling 143" is coupling' slidel 143l farther over the release shaft 56 against the tension of the disengaging spring 144, to position the coupling studinthe path of the arm 146. With the .,non-repeat release key 35 depressed tore- -lease the locking detent 91, and maintainv the 'coupling 143felfective, the release shaft 56, when rocked in clockwise direction at the beginning of the operation of the machine, by

the'spri-ng 85', as lheretofore explained, Will vmerely carry With it the coupling slide 143 to -swing the coupling pin 145 away from the arm 146 ofthe detent release bail 55.

' Then, Von the counterclo`ckvviserotation of the release shaft 56, imparted thereto by the cam race 120, (Fig. 6) ,restoring arm 122 and link 86 as heretoforedescribed, the coupling stud 145 (Figs. 2 and 4) will Contact the arm v`146Y of the bail 55, and rock the bail in countercloc'kwisedire'ction to its opposite limit of travel. 'On this coimter-clockwisetravelf of the bail 55, it strikes all of the arms 78-(Fig. 8) of the detent-.supporting links 57 for the amount banks of keys, and shifts the det-ents 54 to release the depressed keyes, as before Vdescribed.

A detent bar 150 (Figs: 2 and 5) supported at its oppositeendsby links 152 and 153, car- 4ries a hook 149 to take overfthe stud 130 on the non-repeat keyv 35 and hold it in its de- 'pressed position. A spring 151 normally tends.- tol urge `the detent' bar 15() upwardly,

Vbut upon depression of the non-repeat key, itsrstud 130-` cams the detent bar downwardly until thefstud passes the'bill'of the hook,

'whereupon the spring 151' restores the-detentA lbar 'to stud 130. .v

A vspring (not shown)V normally' holds .the

position the hook 149 above the non-repeat key 35 in. itsouter or' unde Y pressed' position.

pressed position. Therefore, `When the bail 55 engages therearwardly'extendizng arm of .the link 153 to .shift the detent 150 to idle position', thel non-repeat key 35 Will be re.l

leased andV Will restoreto its normal unde- A @Oued spring 16o (rig. 5)) ilo-ias the release b ail 55 inits normal'position vat the Vclockwise limitrof its travel. One end of the spring= is connected to the release bail 55 andthe other end to a stationary bracket 161,y

mounted-'on the release shaft 56 andthe shaft 92'.4 Therupper end of the bail 55 contacts a stop shoulder 162 on the bracket 161.

When the bail 55 is coupled to the release lshaft 56 through the coupling 143, and the release shaft is operated, the bail 55 is rotated in counter-clockwise direction against the tensionof the spring 160 near the end of l, itheope'ration of the machine. When the release shaft 56, at the end of its operation,

returns to its normal position intermediate the ends of is path of travel, vin clockwise direction, the spring 160 will cause the'bail55 c to returnv to its normal position.v

As heretofore stated, it is easier fora right- .l

handed operator to actuate the release key 34 than the key35. Hence, wherethe Work to be performed on the machine involves the entry of a succession of different items on successive operations of the machine, means is providedV to enable the operator toadjust the mechanism so. that the repeat7 release key 34Will act as a non-repeat release key. To this end, aY special key 36 (Figs. 1,2'and 4) is provided, Whiclnupon being depressed, couples the amount key release mechanism to the machine release mechanism soy that the machine can bereleased by depression of the repeat release key 34 f-or operation When itis desired to enter an amount only once.

The specialkey 36'controls the coupling 143 so that the amount and transactionk keys will be restored at the end of eachY adding opera` tion ofthe machine, when the machine has been released by theusual repeat release key 34. Thekey 3.6 .is a ',stay-dovvn key and once depressed, it remins in depressed position untilithe machine is released for 'operation by theleft hand or non-repeat7 key 35.

The special key 36 Vcarries a stud 170 (Figs. 2 and 4) which cooperates with an inclined Yprojection 171 on a control 'bar 172, pivotally yconnected at its upper end to the coupling control arm 141, Vand at .its lower end to a supporting link173. Depression of the special key 36 shifts the control bar 172 clock- Wise againstthe tension of a spring 174, to rock the control arm 141 against the coupling 143 in exactly the same manner as When y actiiated by the non-repeat key 35, to slide .the coupling farthery onto the release shaft 56 and introduce the coupling stud 145 into the path of the arm 146.(F ig. 2) of the detent-releasebail 55. Thus, When the repeat-i key 34 fis operated, the special key 36 being inV its depressed position, the detent-release bail 55 will be operated' by the release shaft 55'on its counter-clockwise travel, to displace Vthe detent bars 54 and release all of the del vpressed keys 30.`

v A retaining hook 175 (Fig. 2), projecting from a detent bar 169, cooperates With the stud of the special key 36, to retain the Y key in 'depressed position. The detent bar 169 is pivotally supported at one end by a 'ing cam 179, With Which cooperates the stud 130 on the non-repeat release key 35. When the non-repeat key 35`is depressed, the stud 130 Wipes along the cam 179 to shift the detent bar 169 counter-clockwise, thereby disengaging the detaining hook 175 from the stud 17 0 of the special key 36 to free the latter for restoration to normal position.

Spring 130 Wound around a stud 181 of the key frame and upon which the links 152, 173 and 176' are mounted, tends to hold the detent bar 169 in and return it to its normal position with the stud 177 at the upper end .of the slot 178 in the control bar 172.

0 peratz'on The opera'tion of this invention has been heretofore explained, but briefiy recapitalated, whenr the operator desires to repeatedly enter the same amount, he will depress the proper amount keys 30, and select the totalizers by depressing the control keys 31, 32 and 33, after which he depresses the repeat release key 34 and the machine is operated. During such operation, the amount is entered in any one or more of the various tota-lizers, and at the end of the operation, the amount keys remain in their depressed positions, because the release bail 55 is not coupled With the key release shaft 56.

If it isdesired to enter an amount only once, the operator depresses the proper .amount keys 30 and selects the totalizer or totalizers, as before, after which he releases the'machine by depression of the nonre peat key 35. Depression of this key couples the key release bail to the release .shaft 56, so that near the end of the operation lease shaft 56, so that during the operation of the machine, when released by the repeat motor key 34, the bail 55 will be effective to release the depressed amount keys.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form or embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming Within the scope of the claims which follow.

What is claimed as new, is:

1. In a machine of the class described, the' combination with depressible keys; and a detent to maintain the keys depressed; of a normally ineffective device adapted to actuate the detent during the operation of the machine to free the depressed keys; normally wlocked operating mechanism; means to release the operating mechanism for an operation during which the detent actuating device remains ineffective and the keys remain depressed; a second independently operable means to release the operating means for operation; an adjustable member operable by the depression of the last-named release means; and a coupling device adapted to be operated by the adjustable member to couple the normally ineffective detent actuating d evice With the operating mechanism to cause the device to become effective during an operation of the machine.

2. In a machine of the class described, the combination with depressible keys; a detent to maintain the keys depressed; a normally ineffective member to actuate the detent during the operation of the machine to free the keys; normally locked operating mechanism; a machine release key to release the normally locked operating mechanism for an operation during which the detent-releasing member remains ineffective and the keys remain depressed; a second machine release key to release the operating` mechanism for operation; a control operable by the depression of the second-named machine release key; a coupling device adjustable by the control and operated by the operating mechanism; a projection on the coupling device; and an arm on the normally ineffective detent-actuating member adapted to lie in the path of the projection of the coupling device when said coupling device is adjusted by the second-named machine release key.

3. In a machine of the class described, the combination with depressible keys; a. detent to maintain the keys depressed; a normally ineffective member to actuate the detent during an operation of the machine to free the keys; normally locked operating mechanism; a machine release key to release the machine for an operation during Which the detentactuating member remains ineffective, and the keys remain depressed; a special key; a slidable control bar adjustable by the special key; a control member adjusted upon operav tion'offthe slid'able control bar: and a cou- Y plingdevice operable by the control member -vto couple the normally ineffective detent- Afiles actuating member with the operating inechanism to render the detent-actuating member eective during an operation oic the machine. 4. In a machine of the class described, the

Vcombination With depressible keys; a detent to maintain thekeys depressed; a normally inel'ective member to actuate the detent during the operation of the machine and free the keys; normally lockedV operating. mechanism a machine release key to release the normally locked operating mechanism oran operation during which the detent-actuating member remains ineliective, and the keys remain de-` pressed; a special key; a slidable controlbar adjustable by the special key; a control member adjusted upon operation of 'the `slidable Y control bar; a slidablecouplingfdevice ad- Justable by the control member, and operated by the operating mechanism; a projection on thecoupliilg` device; and an arm on the normally inellective ',detent-actuating device adapted to be engaged vby the projection of the coupling device When Asaid coupling de'- -viceis adjusted to enective position by the specialkey. v Y

l5. In a machine of the class described, the combination With a normally'locked operating means; depressible keys; and means to detain t-he keys in their depressed posit-ions of a normally ineective means to actuate'the detaining means and free the depressed keys ;Y means to release the normally locked `operv Vating means to enable an operation of the inachine during which the actuating means Jfor the key-detaining means remains ineective;

' and a second means to release the normally locked operating means, and render eitective the actuating means for the key-detaining 6. `In a machine or" the class described; the combination With a normally locked operat ing means; depressible keys; and means'to detain the keys in their depressed positions; of a normally -inenective means to actuate the detaining means anclffree the keys; means f to release .the normally locked operating vmeans and free the keys; 'a plurality of ma- -nipulative means V,to control the operation'of Ythe operating mechanism; and a coupling device controlled by one of the manipulative means to couple the normallyy inelective actuating 'means With the operating mechanism. j v t Y. 8, In a machine of the class described,V the combination With operating mechanism; depressible`A keys; and means to detain the keys in their depressed positions;of normally ineffective means to actuate the key-detaining means to free the depressed keys; a plurality .of manipulative means to control operation of thesoperating mechanism; a coupling device controlled by vone of the manipulative means to 4temporarily couple'the normally ineffective actuating means With the opera-ting mechanism; and means to prevent the uncoupling ofthe normally ineffective actuating meansl and the operating mechanism.

9. In a machine of the class described, the combination with operatingmechanism; depressible keys; and` means to detain the keys in their depressed positions; of'normally inenective means to actuatethe keyfdetaining ineansto tree the depressed keys; a plural-.90

ity of manipulative means to control operation of the operating mechanism a coupling device controlled by one of the manipulative means to temporarily couple the normally ineective actuating means With the Operatd ing mechanism; and means also under control otthe manipulative means to prevent the iincouplinglof the normally inelective actuating means and the operating mechal nism.

l0; In a machine of the class described, the combination With operating mechanism; deprcssible keys ;Vand means to detain the keys in their depressed positions; of normally ineffective means to actuate the key-detaining Y means to free the depressed keys; a. plural` ity of manipulative means to control operation ofthe operating mechanism; a coupling device controlled by one of the manipulative means to temporarilycouple the normally ineffective actuating means with the operating mechanism; and means tripped by a second depression of the last-namedmanipulative means to prevent the uncoupling ot the normally ineffective actuating means and the operating mechanism;

l1. In a machine of the class described, the combination with operating mechanism;-de pressible keys; and means to detain the keys in their depressed positions; of normally in- Y effective means to actuate the'key-detaining means to free the depressed keys; a normal# ly ineiiective coupling between the actuating means and the operating mechanism; a manipulative device to render the coupling efifective for a single operation of the ina- 'chine; and a second manipulative device controlled by the first-named manipulative device, and operable to `render the coupling efective for successive operations.

l2. In a machine of the class described, the A combination with operating mechanism; depressible keys; and means to detain the keys in their depressed positions; of normally ineffective means to actuate the key-detaining means to free the depressed keys; and separate means to control the operating mechanism, one only of which controlling means renders effective the means to actuate the keydetaining means.

13. In a machine of the class described, the combination with operating mechanism; depressible keys; and means to detain the keys in their depressed position; of normally ineffective means to actuate the key-detaining means to free the depressed keys; a normally ineffective coupling between the operating mechanism and the means to actuate the keydetaining means; separate means to control the operating means; and means operable by one only of the controlling means to render the coupling means effective.

14. In a machine of the class described, the combination with operating mechanism, depressible keys; and means to detain the keys in their depressed positions; of normally ineffective means to actuate the key-detaining means to free the depressed keys; a normally ineffective coupling between the operating mechanism and the means to actuate the keydetaining means; separate means to control the operating means; means normally operable by one only of' the controlling means, to render the coupling means effective; and a special key to render the coupling effective during an operation of the machine initiated by another'ofthe controlling means.

15. In a machine of the class described, the combination `with operating mechanism; depressible keys; and means to detain the keys in their depressed positions; or normally ineffective means to actuate the key-detaining means to free the depressed keys; a normally ineffective coupling between the actuating means and the operating mechanism; a plurality of independently operable means to control the operating mechanism whereby to effect operations of the machine; means interposed between one of the independently operable means and the coupling to render the coupling effective; and a special manipulative member operable upon the interposed4 means to render the coupling effective irrespective of the independently operable means.

16. In a machine cf the class described, the combination with operating mechanism; depressible keys; and means to detain the keys in their depressed positions; of normally ineffective means to actuate the key-detaining means to free the depressed keys; a normally ineffective coupling between the actuating means and the operating mechanism; means to control the operating mechanism to enable an operation of the machine; means interposed between the control means and the coupling to render the latter effective; and a detent to retain the control means in set position, and rel'easable by the means which actuates the key detaining means for the keys.

17. In a machine of the class described, the combination with operating mechanism; depressible keys; and means to detain the keys in their depressed positions; of normally ineffective means to actuate the key-dctaining means to free the depressed keys; a normally ineffective coupling between the actuating means and the operating mechanism; means to control the operating mechanism to enable an operation of the machine; means interposed between the control means and the coupling to render the latter effective; a special manipulative member operable upon the interposed means to render the coupling effective irrespective of the control means for the operating mechanism; and a detent controlled by the control means to retain the special manipulative member in effective position.

In testimony whereof I affix my signature.

PASCAL SBURLINO.

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