US2571645A

US2571645A - Cash register and accounting

Info

Publication number: US2571645A
Authority: US
Publication date: 1951-10-16
Anticipated expiration: 1968-10-16

Description

Get. 16, 1951 ZURBUCHEN 2,571,645

CASH REGISTER AND ACCOUNTING MACHINE Filed 001 16, 1947 4 Sheets-Sheet l MOTOR 3nventor LOUIS E. ZURBUCHEN BY' w HIS (Ittomeg,

Oct. 16, 1951 ZURBUCHEN 2,571,645

CASH REGISTER AND ACCOUNTING MACHINE Filed Oct. 16, 1947 4 Sheets-Sheet 2 3 for LOUIS E. ZUR HEN 23 BY KM/a HIS Gttorneg Oct. 16, 1951 L. E. ZURBUCHEN 2,571,645

CASH REGISTER AND ACCOUNTING MACHINE Filed Oct. 16, 1947 4 Sheets-Sheet 3 Bnnentor LOUIS E. ZURBUCHEN HIS (Ittorneg L. E. ZURBUCHEN CASH REGISTER AND ACCOUNTING MACHINE Oct. 16, 1951 4 Sheets-Sheet 4 Filed Oct. 16, 1947 FIG. 6

Smaentor LOUIS E. ZURBUCHEN BY v HIS (Iltorneg Patented Oct. 16, 1951 CASH REGISTER AND ACCOUNTING MACHINE Louis Emile Zurbuchen, Zurich, Switzerland, as-

signor to The National Cash Register Company, Dayton, Ohio, a corporation of Maryland Application October 16, 1947, Serial No. 780,244 In Switzerland September 8, 1944 Section 1, Public Law 690, August 8, 1946 Patent expires September 8, 1964 1'7 Claims.

This invention relates to improvements in differential mechanisms for cash registers and accounting machines, and particularly to machines having indicator and type wheel setting mechanisms.

The principal object of the invention is to provide a difierential mechanism for entering amounts into accumulators, and simultaneously setting type carriers and indicators, in which the time in the machine cycle during which the type carriers and indicators are set is longer than in similar mechanisms known in the prior art, to slow the movements of the indicators and type carriers to a minimum speed.

A specific object of the invention is to provide a mechanism for setting indicators at a minimum speed, to prevent whipping the indicators and resulting damage thereto.

Another object of the invention is to provide a differential mechanism with a plural beam construction to set indicators and type carriers, which beam mechanism starts setting the indicators immediately the differential is arrested by the manipulative devices controlling it, thus allowing a maximum of time during the machine cycle for setting the indicators, which results in a slower operating indicator setting mechanism.

Another object of the invention is to provide a differential mechanism for setting indicators and type carriers with two beams, connected together at one end to provide a floating pivot, one beam being connected to a diiferentially settable member and the other beam being connected. to the indicator setting member, whereby the beams can be actuated immediately the differentially settable member is positioned under control of the keyboard of the machine.

Another specific object of the invention is to provide a diiferential mechanism having a twopart settable member differentially settable under control of the keyboard, one part of which is locked to set position to start control of the setting of the indicator immediately upon being set, and while the other part is restored to normal position for entering amounts into the accumulator, to thereby give added time during the machine cycle for reducing the speed of setting the indicator into its new position.

With these and incidental obiects in view, the invention includes certain novel features of construction and combinations of parts, the essential elements of which are set forth in appended claims and preferred forms or embodiments of which are hereinafter described with reference to the drawings which accompany and form a part of this specification.

Of said drawings:

Fig. 1 is a cross-sectional view through a machine having an arcuate keyboard and shows one form of the diiferential mechanism.

Fig. 2 is a cross-sectional view of a machine having a fiat keyboard, and shows another form of the differential mechanism.

Fig. 3 is an enlarged view of the difierential mechanism similar to that shown in Fig. 1.

Figs. v4, 5 and 6, each show enlarged views of modified forms of the differential mechanism shown in Fig. 2.

GENERAL DESCRIPTION Cash registers and accounting machines are usually provided with printing and indicating means, which are set to indicate the amount entered. into or taken from the accumulators of the machine, or to indicate any other data. The indicators must indicate the amount registered after the machine has come to rest and until the next machine operation. Cash registers and acmounting machines are fast operating machines and. are required to perform many functions. For these reasons, the time during a machine cycle which can be allotted to setting the indicator is very short, and in many machines is as little as .2 of the entire cycle. This shortness of time results in a very rapid operation of the indicator when being set and when moved to its greatest extent results in whipping to the extent that frequent damage is caused to the indicator. This is particularly so when large indicator wheels are used, where the momentum of the indicator reaches an undesirable acceleration. In the past, damage to indicators has been avoided by certain expedients, such using springs to snub the indicators and thereby reduce the shock thereof when coming to a sudden stop, or by reducing the diameter of the indicator itself.

In some indicator mechanisms the indicator is returned to a zero, or home position, before being set. into a new position. This type of setting requires a sudden stop and reversal of movement after the indicator reaches the zero or home position. The sudden stop and reversal of direction of movement place a great strain on the setting elements, often resulting in damage to the parts.

In indicator setting mechanisms herebefore known, a limit on the size of indicator wheels which can be used is necessary, since the greater the diameter the greater the momentum and the force resulting therefrom, all of which causes greater strain on the setting mechanism.

The differential setting mechanism, which comprises the present invention controls a novel indicator setting mechanism, which can begin to function immediately the preliminary setting under control of the keyboard devices has been completed. This allows a greater period of time during the machine cycle for setting the indicator into its new position and results in a much slower movement thereof. The indicator can be set simultaneously with the performance of other functions of the machine, such as adding the amounts into accumulators. In some machines it is necessary to complete the setting of the indicators before the amounts are added in the machine. In other machines it is necessary to set the indicators after the amounts are entered in the accumulators. In either event, the time for setting the indicators in such machines is very short, by reason of said sequential operations.

In the invention herein disclosed, the actuator for the accumulator is a spring actuated element which is an element separate from the control member for controlling indicator setting. Both the actuator and the control member are set under control of the keyboard devices at the same time. Since the accumulator actuator is spring driven, the indicator control member can be locked in the position to which it is set under control of the keyboard devices immediately after it is set and thereafter the accumulator actuator can be restored home. From this time on the two mechanisms function independently of each other so that they can operate simultaneously. The accumulator actuator can be restored home to enter amounts into the accumulator at the same time that the indicator control member is held in its controlling position.

DETAILED DESCRIPTION In the form of the invention disclosed in Fig. 1, a diiferential amount actuator I0, pivoted on a shaft I I, is controlled in its differential movement by a bank of keys I2, slidably mounted in the key frame I3, carried by a pair of shafts I4. The shafts I 4 are supported by the side frames I 5 of the machine. A zero stop pawl I6 is provided to arrest the differential actuator In in its zero position when no key I2 is depressed in the key bank. V

The usual detents for holding the keys I2 depressed during the machine operation, and springs for returning the keys to their normal positions at the end of the machine operation,

are provided, all as is'well known in the art.

The actuator I0 is provided with a stop lug I! which engages either'the zero stop pawl I6, or the end of a depressed key I 2, during the machine operation. The actuator I0 is normally urged in -a counter-clockwise direction by a spring I8, one

end of which is connected to a stud I9 on the actuator III, and the other end is connected to a shaft 20. The actuator I 0 is normally restrained in the position shown in Fig. '1 by a universal rod 2|, carried by a pair of arms '22, supported on the shaft II. At the beginning of the machine operation the shaft I I is rocked, in a manner well known in the art, from the main cam shaft of the machine (not shown) to rock in the rod 2|, in a counter-clockwise direction to a position shown by dot and dash lines in Fig. 1. Counter-clockwise movement of the rod 2| releases the actuator I 0 to the action of the spring l8 until the lug I'I engages either the zero stop pawl I6, or the end of the depressed key I2. After the actuator ID has been positioned under control of the depressed key a totalizer element 23 is engaged with the actuator II] in a manner well known in the art. Four totalizers 23 are illustrated, any one or more of which may be engaged with the actuator l I] for receiving entries from the actuators I 0. After the totalizer 23 has been engaged with the actuator It, the universal rod 2I is restored to its normal or full-line position (Fig. 1), during which time the amount represented by the differential setting of the actuator I0 is entered into the selected totalizer element 23. 7

Associated with the differential actuator I0 is an indicator setting control member '24, having a flange 25 normally held in engagement with a shoulder formed on the differential actuator II], by a spring I25. The spring I25 is stretched between a stud on the differential actuator Ill and a stud on the indicator control member 24. During the counter-clockwise movement of the actuator II], when being set under control of the keys, the differential actuator I0 carries the differential control member 24 therewith to position the indicator control member into a position commensurate with the setting of the differential actuator I0.

Pivotally mounted on a stud 26, carried by the indicator setting control member 24, is a beam 21 having an anti-friction roller 28 on its free end. The roller 28 projects into a slot 29 of a second beam 30 pivoted on a stud 3I, carried by an indicator setting segment 32, also pivoted on shaft II. The indicator setting segment 32 is provided with teeth in mesh with a pinion 33 mounted on the side of the indicator drum 34, rotatably mounted on the shaft 35.

The indicator setting segment 32 is also provided with teeth meshing with a pinion 36 carried on one end of a sleeve 31, carried by a shaft 38, which sleeve and shaft project into the printer section of the machine (not shown) and has secured thereto a type element for setting up the amount being entered into the totalizer element 23 in the manner well known in the art.

The indicator setting control member 24 is provided with looking teeth 39, and the indicator setting member 32 is provided with locking teeth 40. Normally, that is, when the machine is at rest, a locking member M is in engagement with the teeth 40 of the indicator setting segment 32. The locking member 4| is carried by a pair of arms 42 on the before mentioned shaft 20. During the machine operation, immediately the differential actuator I0 has been adjusted differentially under control of the keys I2, or the zero stop I6, the locking member M is disengaged from the'teeth 40, and moved into engagement with the teeth 39 of the indicator setting control member to lock the indicator setting control member 24 in its adjusted position. The width of the locking member M is such that it enters the teeth 39 before becoming entirely disengaged from the teeth 40. Immediately after the indicator setting "control member 24 has been locked by the locking member 4 I, the universal rod 2| is restored to its home position, to restore the differential actuator ID to its normal position in the manner above described. At this time the spring I25 is stretched to place tension on the control member 24 so that later, during the machine operation, when the locking member 4| is disengaged from the teeth 39, the spring I2 5 restores the indicator control member into its home position where the flange 25 again comes into contact with the shoulder of the differential actuator ID.

Mounted on a rock shaft 43 is a pair of arms 44 carrying a rod 45 for engaging the beams 21 and 3D for setting the indicator setting member in accordance with the positioning of the indicator setting control member 24. Immediately after the indicator setting control member 24 is locked in its set position by the locking member 4|. the rod 45 is rocked downwardly and during this movement engages the

beams

21 and 30, and rocks both beams around their respective pivots 25 and 3| unti1 the central parts thereof are brought into contact with a collar on the shaft Bringing of the

beams

21 and 30 into contact with the collar on the sha t moves the beams into coincident relationship to simultaneously adjust the indicator setting segment 32 in accordance with the position of the indicator setting control member 24.

After the indicator setting member 32 has been positioned by the beams 21 and 3%, the locking member 4| is disengaged from the tooth 35 and is enga ed with tooth M of the indicator setting mechanism, thus holding the indicator 34 in its' newly set position until the next operation of the machine.

As before mentioned the indicator drum 34 remains in the position to which it was last set until a new amount is entered into the machine. Where the new amount entered is different from the amount standing on the indicator drum, it will be necessary to translate the counter-clockwise movement of the indicator control setting member 24 into either a similar directional, or an opposite clockwise, movement of the indicator setting member 32, according to whether the amount is greater or less than said amount standing on the indicator.

In Fig. 1 the indicator control setting member 24 is shown in normal position, but the indicator setting member 32 is shown in such a position that the numeral 5 on the drum 34 is disclosed through the window in the machine casing, and a fifth tooth 40 from the right-hand end of the indicator setting member 32, is engaged by the locking member 4|, the teeth 46, from right to left, corresponding to digits 1 to 9, and the last tooth to the left representing zero indication.

If in the next operation of the machine the new amount entered corresponds to that standing on the indicator, that is, 5 in the present instance, the indicator control setting member 24 will rotate counter-clockwise to a position corresponding to that of the actuator l0, and will then be locked in this position by the locking member 4|, in the manner before described. As the indicator control setting member rotates, the pivot 26 descends and thus lowers the beam 21 toward the collar on the shaft I. In this particular instance, the movement of the indicator control setting member is arrested just as the beam 21 reaches the collar on the shaft H and is thereby brought into alinement with the beam 30. Thus,

when the rod 45 descends, it will contact the nodes of both

beams

21 and 30 simultaneously, but as both are resting on the collar on the shaft N, no movement of either beams or the indicator drum will take place.

In regard to the entry of new amounts into the machine in excess of the amount being displayed by the indicator drum 34, and also for the zero indication, it is arranged that consequent on movement of the indicator control setting member 24 to accord with the setting of the actuator ID, the node of the beam 21 is adjusted to various heights above the node of the beam 30 depending on the value of the digit, or whether it is zero.

In the particular example illustrated, if the new indication is to be zero, the keys |2 will all be normal and there will be no effective movement of the actuator It or indication control setting member 24, when the machine is operated, the actuator being held by the zero stop Hi. In consequence, when the rod 45 descends, it will encounter the node of the beam 21 and press the beam down onto the collar on the shaft During this downward movement of the beam 21 the roller 28. through the slot 29, exerts a clockwise turning movement on the beam 30 about the rod H, which movement is also imparted to the indicator setting member 32 to set the indicator drum to display a zero through the window in the machine casing. The locking member 4| thereafter ascends to engage the final tooth 40 to the left of the member 32 to lock the latter in zero position.

In the event of the uppermost key l2 corresponding to digit 9 being depressed, on the machine operation the actuator l0 and indicator control setting member 24, will take one step counter-clockwise from the normal position as shown, and in consequence the small movement of the pivot 25 of the beam 21, will cause the beam to descend to an equivalent extent, that is, to a lower position than that occupied when the indicator drum was to be set to zero. Therefore, the extent of the downward movement of the beam 21, on depression thereof by the rod 45 will cause the indicator setting member 32 to be rotated in a clockwise direction to an extent suflicient to rotate the indicator drum counter-clockwise to a position where the digit 9 will be displayed in the window of the machine casing.

In view of the foregoing, the manner in which the indicator drum is set to display digits 6, '1, and 8, will be obvious Without further description.

Thus it will be seen that where the new digit to be displayed on the indicator drum is greater than that being indicated, the beam 21 will be set to a position higher than the beam 30 relative to the shaft H, and, on the depression of the beam 21 onto the collar surrounding the shaft H by the rod 45, the indicating-setting member 32 will be rotated clockwise and the indicator drum counter-clockwise to display the digit corresponding to the new entry.

The operations involved, where the new amount to be indicated is below 5, will now be described.

When the new amount is entered, such as by the depression of the key I2, representing the digit 3 as illustrated, the actuator will rotate counter-clockwise until it encounters the depressed key, and will be followed by the indicator control setting member 24. During the counterclockwise movement of the indicator control setting member 24, the beam 21 will descend until it reaches the collar on the shaft without causing any movement of the beam 30. However, on the continued descent of the pivot 26, as the middle of the beam 21 is prevented from further downward movement by the shaft II, the right hand end of the beam 21 will be lifted, and in consequence lift the right-hand end of the beam 30 so that the beam 30 leaves the collar on the shaft I I and its node rises above the node of the beam 21 to an extent depending upon the value of the new digit to be displayed on the indicator drum 34.

When the rod 45 descends, it first encounters the node of, and presses downwardly the beam 30. As the roller 28 on the beam 21 is held, it forms a pivot for the beam 33, and the latter, therefore rotates counter-clockwise about this pivot until the beam 33 is pressed onto the collar surrounding the shaft II whereb further movement is stopped. The counter-clockwise movement of the beam 30 is imparted, through the pivot stud 3I to the indicator setting member "tion until the next operation of the machine.

Thus it will be seen that, for the adjustment of the indicator drum 34 to a position corresponding to a digit of a value lower than that being indicated, the beam 33 is raised above the beam 21, after movement of the latter has been stopped by the shaft I I, to an extent depending upon the difference between the digits, the subsequent downward movement of the rod 45 depressing the beam 39 to impart a counter-clockwise movement thereto, which is also imparted to the indicator control setting member 24, the indicator drum 34 thereby being rotated clockwise to a position where the digit representing the new entry is displayed.-

It is to be noted that the positioning of the differential actuator II] under control of the keys I2 positions the control member 24 into position commensurate therewith. This movement of these two elements is simultaneous during the setting up movement. After the locking member M has engaged the control member 24 it is in position to control the setting of the indicator 34 and the type wheel setting sleeves 3'! independently of any further movement of the differential actuator I5. Therefore the differential actuator II] can be restored to its home position and the amounts entered into the totalizer while the indicators and type wheels are being set up. Since it is not necessary to operate the indicator setting mechanism and the differential actuator at the same time, more time can be allotted to the setting of the indicator during the machine operation, and therefore the rod 45 can be moved with a minimum of speed and this operation resulting in a slower setting movement of the indicator 34. This slower movement is obtained by providing indicator setting mechanism which is controlled and operated entirely independent of any other functions of the machine. This slowing down of the speed of setting the indicator is also obtained by providing the two beams, by means of which the resulting movement is appreciably slowed down.

Figure 3 shows an enlarged view of the form of differential mechanism disclosed in Fig. 1, of a slightly modified construction. In this modification the lug II of the differential actuator is normachine.

mally engaged by a lug 46 on the indicator setting control member 24. The spring I25 is stretched to maintain the shoulder 46 against the lug I I when a, machine is in its normal or home position. Differential adjustment of the differential actuator I0 causes the lug II, engaging the shoulder 46, to carry the differential setting control member 24 into the position controlled by a depressed key. At the beginning of the machine operation, the locking member 4| is engaged with the liner tooth 39 to lock the indicator setting control member 24 and control the adjustment of the indicator 34 and the type carriers in the manner described for the form of invention shown in Fig. 1. Near the end of the machine operation, when the locking member 4| is disengaged from the tooth 39 and into engagement with a tooth 4f], the spring I25 returns the indicator setting control member 24 into positions in which the shoulder 46 again engages the lug II.

From the above it is clear that the setting of the'indicator by the form of the invention of Fig. 3 is accomplished in exactly the same manner as described above for the form of invention disclosed in Fig. 1, the only distinction between the two forms of the invention being in the connections between the difierential actuator I 0 and the indicator control member 24. The structural difference between Fig. 3 and Fig. 1 forms, resides primarily in the control point between the setting of the indicator control member 24. In Fig. 3 form, the control member is provided with a shoulder 46 which engages with the flange I'I, whereas in Fig. 1 the flange 25 engages a, surface on the differential setting segment I0. Otherwise the two mechanisms operate in identically the same manner.

Modified form-flat keyboard In the form of the invention shown in Fig. 2, the invention is shown applied to a machine having a flat keyboard. The differential actuator 50 (Fig. 2) is slidably mounted on two rods 5|, and is controlled in its differential movement by a bank of keys 52 carried by the framework of the The differential actuator 53 is provided with a stud 53 projecting into a slot 54 of a lever 55 slotted at its lower end to pivot on, and slide on, a rod 55. The upper end of the lever 55 is provided with a stud 5I, which is guided along the path of the ends of depressed keys 52 by a slot 58 formed in the key frame 59. A zero stop pawl 30 arrests the lever 55 in a zero position. A spring 6| attached to a stud on the machine frame at one end, and to a stud B2 on the differential actuator 58 at its other end acting through the stud 53, normally maintains the lever 55 in engagement with universal rod 63. The universal rod 63 is carried on a plurality of arms 64 secured to the shaft 35. Upon operation of the machine, mechanism not shown moves the universal rod 63 causing the lever 55 to follow the universal rod until the stud 5? at the upper end thereof engages either the zero stop pawl 53, or the depressed key 52. This differentially positions the totalizer actuator 53 into a position commensurate with the Value of the key 52 which is depressed.

After the differential actuator 50 has been differentially positioned one or more of the totalizers B5 are engaged with the teeth of the actuator 53, whereupon the universal rod 63 is restored to its full-line position in a clockwise direction, which, acting through the lever 55 and stud 53, restores the differential actuator 50 into its home position. During this return movement of the differential actuator 50, the amounts set thereon are entered into the totalizer wheels 65 which are engaged therewith.

Mounted on two rods 66, so as to slide thereon, is an indicator setting control member 61. The member 61 is provided with a projection 68, which is normally held in engagement with a lug 69 on the differential actuator 50 by a spring 10. When the diiferential actuator 50 is moved during its initial movement, the indicator control member 61 is positively positioned therewith so as to position the control member 61 commensurate with the position into which the differential actuator 58 is set under control of a depressed key.

Pivoted on a stud II, carried by the indicator setting conrol member 61, is a beam I2, slotted at its lower end to receive a stud I3 on a second beam I4. The beam I4 is pivoted on a stud I5 carried by an indicator and type wheel setting rack I8. The indicator and type wheel setting rack I6 is slidably mounted on a pair of rods 11. The rack I6 is provided with teeth engaging a pinion I8 secured to the side of an indicator 79. The rack I6 is also provided with teeth meshing with a pinion 80 secured to the end of a sleeve 8|, which projects into the printer section of the machine (not shown) and on which is mounted a type wheel in the usual manner.

The lower edge of the indicator setting rack I6 is provided with locking teeth 82 one of which is normally engaged by a locking bar 83. The lock ing bar 83 remains in looking engagement with a tooth 82 until the differential actuator 58 has been set under control of a key 52, whereupon the lockin bar is disengaged from the tooth 82 and moved into engagement with one of a plurality of teeth 85 provided in the indicator setting control member 61, one tooth 85 being provided for each position of adjustment thereof.

At the beginning of the operation of the machine, when the universal rod 63 is rocked in a counter-clockwise direction to release the differential actuator 50, for differential adjustment under control of the depressed key, the indicator control member 61 is adjusted into a corresponding position. At this time the stud II carrying the upper end of the beam I2 is also positioned into a position commensurate with the setting of the difierential actuator 58 which has been properly adjusted in accordance with the depressed key and locking bar 83 is moved into a corresponding locking tooth 85, to lock the indicator setting control member 61 in its adjusted position. Thereafter the differential rack 50 can be restored to its home position at which time the spring I8 is tensioned. This return movement of the totalizer actuator 58 is independent of any subsequent movement of the indicating setting control element 61.

After the indicating setting control member 61 is locked in its adjusted position, a beam operating rod 88 carried by a plurality of arms 81 on a shaft 88 is rocked in a clockwise direction from the full-line position shown in Fig. 2 to the dot and dash position, during which movement the beam operating rod 86 picks up the beams I2 or I4, depending upon the position in which they are at the beginning of the operation of the machine.

In Fig. 2 the indicator setting member I8 is shown in the position where digit 1 is displayed by the indicator drum I9.

It will be appreciated that, if there has been no entry on the keys 52, that is, not one thereof has been depressed, on the next operation of the machine the indicator control setting member 61 will remain in the position shown, and the looking bar 83 will descend to engage the final tooth 85 to the left and lock the member in this position in which the beam I2 is held against the stop rod 89. Thus the beam I2 is prevented from counter-clockwise movement about the stud II thereby holding the stud I3, and thus the lower end of the beam I4, stationary insofar as lateral movement is concerned.

When the beam operating rod 88 is rotated clockwise, to the position indicated by dot and dash lines, it presses upon the beam I4 to cause it to rotate in a clockwise direction about the stud I3 until it encounters stop rod 89. In consequence, the indicating setting member is moved to the right the full distance of the length of the rack formed by the teeth 82, thereby to rotate the indicator drum I9 counter-clockwise through 344 degrees to bring the facet-bearing cipher O opposite the window of the machine.

In the event of one of the keys 52 being depressed, the indicator control setting member 61 will be set to a position commensurate therewith and in consequence the beam I2 will be moved to the left to an equivalent extent away from the stop rod 89, the beam I2 pivoting about the stud 73 which is fixed by reason of the beam 14 being held against the operating rod 88 in its normal position.

When the operating rod 86 is rotated in a clockwise direction it causes the beam 14 to rotate about its pivot in a counter-clockwise direction, the pin 13 thereby moving in an upward arcuate path and by its engagement with the slot in the beam 72 causes the latter to rotate about its pivot II also in a counter-clockwise movement.

Thus both beams rotate freely, the lower ends moving toward the right until the beam I2 is brought into contact with the stop rod 89, whereafter the lower end of this beam fixes the axis of rotation of the stud I3.

During the continued movement of the operating rod 86, the beam Id is caused to rotate about the axis of the stud 13, and in consequence the upper end of the beam moves to the right carrying the indicator-setting member I6 therewith, the slot in the beam I2 permitting the small downward movement of the stud I3. The indicator setting member I6 is thus moved to the right to an extent necessary to rotate the indicator drum I9 in a counter-clockwise direction to bring the facet thereof bearing a numeral corresponding to the depressed key behind the window in the machine casing.

It will be noted that if the indicator drum I9 is already displaying a digit corresponding to a key I2 which is depressed, the two beams I2 and I4 will be brought into alinement, and when the beam operating rod 88 is operated both beams will be moved simultaneously to contact the stop rod 89 the extremity of movement of the operating rod, and thus no movement of the indicating control setting member will take place and the indicator drum will remain in its set position.

Obviously, where the indicator drum I9 is set to a position greater than 1, but not zero, the beam I4 will occupy a position intermediate between the position as indicated in Fig. 2 and the stop rod 89, whereas in the event of the existence of a zero indication the beam will be against the stop rod.

Assuming that a key I2 is depressed such as to require a change of indication, either from zero to a digit or to a digit of lower value, then, when the indicator control setting member 61 is set, the beam I2 will move to the left beyond the position occupied by the beam I4.

Thus when the operating rod 86 is moved counter-clockwise on the operation of the machine, it first encounters the beam I2 and causes this beam to rotate counter-clockwise about its pivot II, whereby its lower end, through the stud I3 and slot, will move the beam I4 into contact with the stop rod 89;

As the upper end of beam 12 is fixed, the continued counter-clockwise movement of the beam by the operating rod 85, through the stud I3, will exert. pressure on the lower end of the beam I4, and the latter, therefore pivots about the stop rod 89, to move its upper end to the left. This latter movement is imparted to the indicator setting member I6, which in turn rotates the indicator drum in a clockwise direction to take up a position where a facet bearing a numeral corresponding to the depressed key I2 is opposite the window in the machine casing.

It should be noted that the restoring movement of the totalizer actuator 59 and the actual entering of the amount into the selected totalizer element 65 is accomplished independently of any movements of the indicator control slide 61. For this reason the beam operating rod 86 can begin to operate immediately the control rack 67 is locked in its adjusted position, without waiting for any further movement of the totalizer actuator 59 or any other mechanisms which usually are a part of machines of the class to which the invention is shown applied. The advantage of this timing and the mechanism is that more time can be allotted to the operation of the

beams

12 and 14, thus resulting in a slower setting movement of the indicator I9 and avoiding the objections to the usual indicator setting mechanism in which the time allotted for setting thereof is so short that the indicator must be set at a high speed and safeguards therein have to be provided to prevent injury thereto.

Modified jorm-Fig. 4

Fig. 4 discloses a modified form of beam mechanism for obtaining the same results as described for the mechanism shown in Fig. 2. In this form of the invention the beams 95 and 9 6 corresponding to the beams 72 and I9 are pivoted together by a stud 91, thus forming a scissors action. The beam 95 is provided with a stud 98, which projects into a slot in the indicator setting slide 16. In this form of the invention the differential actuator 56 is positioned in the manner above described to correspondingly position the indicator control slide 61. This provides a fixed pivotal point II for the beam 9! after the control slide 61 is locked in its adjusted position by the locking bar 83.

In Fig. 4 the indicator setting member I6 is shown in its extreme left-hand position where the digit 1 on the indicator drum will be displayed through the window of the machine casing. The indicator control setting member 61, however, is shown in its normal position, which is also the position in which the member is locked on the operation of the machine in the absence of a depressed key in the key bank. In the latter circumstances, when the beam operating rod 86 is rocked in a counter-clockwise direction, it rotates the beam 96 and stud 91 in a similar direction about its pivot stud I I. The movement of the stud 9! is imparted to the beam which pivots upon its line of contact with the stop rod 89 in a clockwise direction until the lower end of the beam 96 meets the stop rod and both beams are brought into alinement. The upper end of the beam 95, through the engagement of the stud 98 with the slot in the indicator setting member I6, moves the latter toward the right, which in turn rotates the pinion I8 secured to the indicator drum in a counterclockwise direction to set the drum to a position commensurate with the movement of the member I6, that is, in the example being. described, to display the cipher 0.

The stud 98 and slot connection of the beam 95 and the member I6 permits free reciprocal movement of the stud during its arcuate movement.

It will be appreciated that if a digit greater than the digit 1 is being displayed by the indicator drum, the indicator setting member 15 will occupy a position such that the beam 95 will be disposed at the same intermediate position between the positions of the

rods

86 and 89 as illustrated.

If the value of a new digit entered is greater than that being displayed by the indicator drum, the lower end of the beam 95 will occupy a position between the beam 96 as set in accordance with the depressed key and the rod 89, and in consequence when the beam operating rod 86 is rotated counter-clockwise during a machine operation, it will cause the beam 96 to rotate in a similar direction about its fixed pivot formed by studs II and freely carry with it the beam 95 through the stud 91 until the latter beam contacts the rod 89. On a continued movement of the operating rod 86 the scissors action of the beams will take place as described above to move the indicator setting member to the right to reset the indicator drum in accordance with the new indication required.

Where the indication being given by the indicator drum is to be changed from a higher to a lower digit, and, when the actuator 50 and the indicator control setting member 61 take up positions in accordance with the keys of the key bank which has been operated, the

beams

95 and 96 will assume positions opposite to that indicated in Fig. 4, so that the end of the beam 96 will approach more closely to the stop rod 89 than the corresponding end of the beam 95.

Thus when the operating rod 36 is rotated in a counter-clockwise direction it will first engage with the lower end of the beam 95, whereby both beams will be rotated in a counter-clockwise direction until. further movement of the beam 96 is stopped by contact with a stop rod 99. The position of the stud 9! therefore becomes fixed, and further movement of the rod 86 will cause the beam 95 to rotate in a counter-clockwise movement about the stud 89, whereby the upper end of the beam will move the indicator setting member toward the left and in turn rotate the indicator drum in a clockwise direction to the new displaying position.

Obviously, in the event of a new entry into the machine being the same as, that already being indicated on the indicator drum, two beams will be brought into alinement on the setting of the indicator control setting member 61, and on the operation of the operating rod 86 both beams will be moved freely simultaneously to the stop rod 89, and thus no change of indication will take place.

Modified formFig. 5

Fig. 5 is another modification of the mechanism shown in Fig. 2, and in which the differential actuator 50 also acts as the control member for setting the indicator. In this form of the invention the diiierential rack 50 is provided with looking teeth 65, which are engaged by the locking bar 83 after the differential actuator 50 has been set. In this form of the invention a stud 91, carried by the beam 66, projects into a slot in the beam 95, to provide an equivalent action to the stud 98 engaging the slot in the member 15 (Fig. 4) and the upper end of the beam 95 is pivoted on a stud 15 in the same manner as shown in Fig. 2. In the operation of the beam mechanism shown in Fig. 5, the result is the same as that shown and described in Fig. 4, that is, the beam actuating rod 86, which in rocking in a counterclockwise direction, cooperates with the lower ends of the

beams

95 and 96 and carries them into engagement with the fixed rod 89, whereupon the two

beams

95 and 96 come into coincident relationship with each other to position the indicator setting slide 16 commensurate with the setting of the difierential actuator 50.

Modified form-Fig. 6

Fig. 6 shows an enlarged view of still another form of beam actuating mechanism to obtain the same results described above. In this form of the invention the diiierential slide I is positioned by a, lever like the lever 55 (Figs. 2, 3 and 4) having a stud 51, which comes into contact with the depressed key of the keyboard. The differential actuator I00 is provided with locking teeth IOI which are engaged by a locking member I02 pivoted on a rod I03 after the difierential actuator I00 has been positioned according to the value of the key depressed. The differential actuator I00 is provided with an upstanding ear having a slot I 04 into which projects a stud I05 carried on the upper end of a beam I 06 pivoted to the lower end of a'second beam I01 by a stud I03. The upper end of the beam I01 is provided with a stud I00 which projects into a slot I I0 of an indicator setting rack III having teeth H2 in engagement with a pinion Il3 carried by the indicator II4.

After the differential actuator I00 has been locked in a set position by the lock I02 engaging a tooth IIiI, beam operating roller II5 projecting into circular slots in the beams I06 and I01 is moved in a counter-clockwise direction from the full-line position shown in Fig. 6 to the dot and dash line position.

In Fig. 6 the indicator setting rack I I I is shown in its extreme left-hand position, where the digit 1 is displayed by the indicator drum I I4, and the beam I01 is held against the fixed stop rod IIB.

If no entry has been made by depression of a key in the key bank, on the next operation of the machine the actuator I00 will be held in the position shown by, the locking member I02, and the operating rod H5 in movement in a counterclockwise direction will rotate the beam I06 in a clockwise direction about the axis of the stud I05 carrying the stud in the lower end of the beam I0! with it. The beam I01 is therefore caused to pivot about its line of contact with the stop rod H6 and the upper end of the beam, through the stud I09, moves the indicator setting member toward the right thereby to rotate the indicator drum H4 in a counter-clockwise direction. This action continues until the beam I06 is brought into contact with the stop rod H16 and therefore into alinement with the beam I01, in which position the indicator drum will display the cipher 0 through the window of the machine casing.

It will be appreciated that when any digit greater than 1 is being displayed on the indicator, the beam I 01 will occupy a position intermediate the rods H6 and H5, the distance of separation from the rod I I6 dependin on the value of the digit.

For subsequent entries into the machine of digits greater than that being indicated, the beam I06 will be set to a position to the right of the beam I01 in the positioning of the actuator I00. In consequence, when the operating rod H5 is rotated in a counter-clockwise direction on the operation of the machine, it will first contact the beam I06 whereafter both beams will rotate in an idle clockwise movement until the beam I01 engages with the stop rod II6. As the beam I01 will thereafter be held against further clockwise movement about the axis of the stud I09, whilst the beam I06 continues the said movement, the former beam will pivot about its line of contact with the stop rod II6 until the beam I06 meets the latter. The pivoting movement of the beam I01 about the stop rod causes the upper end of the beam to move the indicating setting member to rotate the indicator drum to display the new digit in the manner above described.

It will be appreciated from the above, that, if the next entry into the machine is in respect to a. digit less than that being indicated, then the actuator I00 will assume a position such that the beam I 06 will overtake and pass to the left of the beam I01. Therefore, on the operation of the operating rod II5 it will first pick up the beam I01 and cause this beam to move the beam I06 into contact with the stop rod I I6 and thus position of the stud I08 will become fixed. The continued movement of the operating rod I05 will cause the beam I01 to rotate in a clockwise direction about the axis of the stud I08 until the beam contacts the rod I I6. The upper end of the beam, through the stud I00, will move the indicator setting member toward the left whereby, through I the rack teeth H2 and the pinion II3, the indicator drum is rotated in a clockwise direction to the extent requisite to display the numeral corresponding to the key of the key bank which is depressed.

Obviously, if the key of the key bank which has been depressed corresponds to the digit already being displayed by the indicator drum, on the operation of the machine, the beams I06 and I01 will be brought into coincidental relationship on the setting of the actuator, and when the rod I I 5 is operated, both beams will move idly and simultaneously to the stop rod H6 and therefore no movement of the indicator drum will take place.

The pin and slot connections I04 and I05 and I09-I I0 provide for free up and down movement of the beams as the beams are being positioned by the rod I I5.

In total, or sub-total taking operations, the long tooth of a selecter totalizer determines the positions of the actuator racks in each of the modifications shown, in the manner well known in the art.

While the forms 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 forms or embodiments herein disclosed, for it is susceptible of embodiment in various forms all coming within the scope of the claims which fol low;

What is claimed is:

1.- In a differential mechanism for machine of the class described having an indicator and a totalizer, the combination of a totalizer actuator, an indicator setting means, manipulative means settable to control the extent of movement of the actuator, means including two levers pivoted together, one of said levers pivoted to the actuator and the other of said levers pivoted to the setting means, means to move the actuator to the position determined by the manipulative means to thereby position the end of the lever pivoted thereto into a position commensurate with the set position of the actuator, and actuating means to move the levers into positions wherein they are in parallel relationship with each other, said parallel relationship being determined by the set position of the actuator whereby the setting means is set into a position commensurate with the set position of the actuator.

, 2. In a differential mechanism for a machine of the class described having an indicator and a totalizer, the combination of a totalizer actuator, an indicator setting means, manipulative means settable to control the extent of movement of the actuator, means including two levers pivoted together, one of said levers pivoted to the actuator and the other lever pivoted to the setting means, means to move the actuator to the position determined by the manipulative means to thereby position the end of the lever pivoted thereto to a position commensurate with the set position of the actuator, lockin means normally engaging the setting means, to lock the setting means against movement until the actuator is set under control of the manipulative means, means to move the locking means out of engagement with the setting means and into engagement with the actuator after the actuator has been set under the control of the manipulative means to lock the actuator in set position, and actuating means operable after the actuator has been locked to move the levers into position where they are in parallel relationship with each other, said parallel relationship being determined by the set position of the actuator whereby the setting means is set into a position commensurate with the set position of the actuator. 3. In a machine of the class described, the combination of a totalizer actuator, manipulative means to control difierential movement of the actuator, a settable member difierentially settable by the totalizer actuator, a first beam having one end thereof pivoted to the settable member whereby said one end of the beam is diiferentially moved by the settable member, an indicator for displaying data corresponding to the differential setting of the totalizer actuator, a driving member connected to the indicator to set the indicator into various positions, a second beam having one end thereof connected to the driving member, means to pivotally connect the first beam and the second beam together at a point non-axial with the said connections of the first beam and the second beam with the setting means and driving member, a locking means having a normal position in locking engagement with the driving member while the settable member is positioned under control of the actuator and a moved position in looking engagement with the settable member, after the settable member has been positioned under control of the actuator,

and means for moving the two beams into coin-.

i6 cidental positions after the settable member has been locked by the locking means to thereby move the driving member into a position commensurate with the set position of the settable memher.

4. In a machine of the class described, the combination of a totalizer actuator, manipulative means to control differential movement of the actuator, a resilient means to operate the actuator in one direction, a settable member differentially settable by the totalizer actuator, means normally restraining the actuator in a home position and operable to release the actuator for operation by the resilient means and to thereafter restore the actuator to the home position, a first beam having one end thereof pivoted to the settable member whereby said one end of the beam is difierentially moved by the settable member, an indicator for displaying data corresponding to the differential setting of the totalizer actuator, a driving member connected to the.

indicator to set the indicator into various positions, at second beam having one end thereof connected to the driving member, means to pivotally connect the first beam and the second beam together at a point non-axial with the said connections of the first beam and the second beam with the setting means and the driving member, respectively, a locking means having a normal position in looking engagement with the driving member while the settable member is positioned under control of the actuator and a moved position in locking engagement with the settable member after the settable member has been positioned under control of the actuator, and means for moving the two beams into coincidental position after the settable member has been locked by the locking means to thereby move the driving member into a position commensurate with set position of the settable member, said last named means operable simultaneously with the restoring movement of the totalizer actuator.

5. In a machine of the class described, a totalizer actuator, an indicator setting member, a stationary stop, a first oscillating bar, two articulated beams located between the stationary stop and said first oscillating bar, one end of one beam being connected to the totalizer actuator and one end of the other beam being connected to the indicator setting member, and a second oscillating bar to control the setting and return movements of the totalizer actuator, said first oscillating bar operable after the totalizer actuator has been set to operate said beams to cause relative movement of both beams until both beams come into contact with said stationary stop, the relative movement so produced causing the indicator setting member to move into a position commensurate with the setting of the totalizer actuator.

6. In a machine of the class described, a totalizer actuator, an indicator setting member, a stationary stop, a first oscillating bar, two articulated beams located between the stationary stop and said first oscillating bar, one end of one beam being connected to the totalizer actuator and one end of the other beam being connected to the indicator setting member, a second oscillating bar to control the setting and return movements of the totalizer actuator, and a locking means to lock the indicator setting member in set position while the totalizer actuator is being adjusted, said locking means being movable from engagement with the indicator setting member and into engagement with thetotalizer actuator atter the totalizer actuator has .-.been set, said first oscillating rbar ioperable after the totalizer actuator hasbeen set to operate-said beams to .cause'relative-movement of both beams until both beams come into contact with said-stationary'stop, the relative movementso produced causing the indicator setting member to move into aposition commensuratewith the setting of the totalizer actuator.

7. In amachine'of the classdescribed, a totalizer actuator comprising a member set under control ofVmanipulative-devices, and a member actuated by the member set under control .of the manipulative devices, an indicator setting member, a stationary stop, a first oscillating bar, two articulated beams located between the-stationary stoptand said first oscillating-bar, one end of one beam being connected to the second member of the totalizer actuator and the one end of the other beam being connected to the indicator settingmember, a lock normally engaged with the indicator setting member while the totalizer actuator members are being adjusted under control of the manipulative devices, said lock being movable into engagement with the second member of the totalizer actuator after the totalizer actuator has been positioned under control of the manipulative devices, and a second oscillating bar to control the setting and return movements of the totalizer actuator, said first oscillating bar operable after the totalizer actuator has been set to operate said beams to cause relative movement of both beams until both beams come into contact with said stationary stop, the relative two articulated beams located between the sta- 1 tionary stop and said first oscillating bar, one end of one beam being connected to the control member and the other being connected to the indicator setting member, and a second oscillating bar to control the setting and return mover merits of the totalizer actuator, said return movement of the totalizer actuator being efiected independently of the movement of the control member set thereby, said first oscillating bar operable after the totalizer actuator has been set to operate said beams to cause relative movement between both beams until both beams come into contact with said stationary stops, the relative movement so produced causing the indicator setting member to move into a position commensurate with the setting of the totalizer actuator.

'9. In a machine of the class described, a totalizer actuator, a control member set under control thereof, a spring to normally maintain an operating connection between the control member and the totalizer actuator, an indicator setting member, a stationary stop, a first oscillating bar, two articulated beams located between the stationary stop and said first oscillating bar, one end of one beam being connected to the control member and one end of the other beam being connected to the indicator setting member, a lock to lock the control member in a position into which it is positioned under control of the totalizer actuator so as to prevent the spring from returning the control member while the totalizer actuator is being restored to its home position, a second oscillating bar to control the setting and return movements of the totalizer'actuator independently of the control membensai'd first oscillating .bar operable after the totalizer actuator has been set and the control member has been locked in a set position to operate said beams to cause relative movement of both beams until the beams both come into contact with said stationary stop, the relative movement so pro duced causing the indicator setting member to move into'a position commensurate with the'setting of the control member as positioned under control of the totalizeractuator.

10. In a machine of 'the class described, the combination of a totalizer actuator, manipulative devices comprising a keyboard, a control member set under control of the totalizer actuator, a spring to cause the control member to follow the differential setting of the totalizer actuator while being set under control of manipulative devices comprising the keyboard, an indicator setting member, a stationary stop, a first oscil- A lating bar, two articulated beams located between the stationary stop and said firstoscillating bar, one end of one beam being connected to the control member and one end of the other beam be ing connected to the indicator setting member, a lock to lock the control member in the position into which it was set under the control of the totalizer actuator, a second oscillating bar to control the setting and return movements of the totalizer actuator, said first oscillating bar operable after the control member has been set under control of the totalizer actuator to operate said beams to cause relative movement of both beams until the beams both come into contact with the stationary stop, the relative movement so pro- .duced causing the indicator setting member to move into position commensurate with the setting of the totalizer actuator, said second oscillating bar operating to control the restoring movement of the totalizer actuator immediatel the control member has been locked in a set position, said first oscillating bar adapted to be restored to its home position after the indicator had been set into its new position and the said spring adapted to restore the control member into contact with the totalizer actuator after the first oscillating bar had been restored to its home position.

11. In a machine of the class described, the combination of a totalizer actuator, a control member normally held in engagement with a totalizer actuator so as to be positioned thereby, a spring to normally maintain the control member in operating contact with the totalizer actuator, said spring permitting return movement of the totalizer actuator independently of the return movement of the control member, an indicator setting member, a stationary stop, a first oscillating bar, two articulated beams located between the stationary stop and said first oscillating bar, one end of one beam being connected to the control member and one end of the other beam being connected to the indicator setting member, a second oscillating bar to control the setting and return movement of the totalizer actuator, said first oscillating bar receiving its setting member to move into a position commensurate with the setting of the control member, said oscillating bars adapted to be restored to their normal positions substantially simultaneously.

12. In a machine of the class described, a totalizer actuator, a control member set under control of the totalizer actuator, an indicator setting member, a stationary stop, a first oscillating bar, a second oscillating bar, said first oscillating bar timed to receive its initial movement after the second oscillating bar completes its initial movement, and both oscillating bars timed to receive their return strokes at substantially the same time, and two articulated beams located between the stationary stop and said first oscillating bar, one end of one beam being connected to the control member and one end of the other beam being connected to the indicator setting member, said second oscillating bar adapted to control the setting and return movements of the totalizer actuator, said first oscillating bar operable after the totalizer actuator has been set to operate said beams to cause relative movement of both beams until both beams come into contact with said stationary stop, the relative movement so produced causing the indicator setting member to move into a position commensurate with the setting of the control member and at substantially the same time the totalizer actuator is being returned to its home position, to thereby reduce the speed of operation of the indicator setting mechanism to a minimum.

13. In a machine of the class described, the combination of a totalizer actuator, manipulative devices comprising a keyboard, a control member set under control of the totalizer actuator, an indicator setting member, a stationary stop,'a first oscillating bar, two articulated beams located between the stationary stop and said first oscillating bar, one end of one beam being connected to the totalizer control member and one end of the other beam being connected to the indicator setting member, a second oscillating bar, a spring for actuating the totalizer actuator into a position as controlled by the manipulative devices, said spring operable to so adjust the totalizer actuator when the second oscillating bar receives its initial movement, and said second oscillating bar adapted to positively return the actuators to their home position upon return movement of the second oscillating bar, said first oscillating bar operable after the totalizer actuator has been set under control of the manipulative devices to operate said beams to cause relative movement of both beams until the beams both come into contact with said stationary stop, the relative movement so produced causing the indicator setting member to move into a position commensurate with the setting of the control member, said oscillating bars operating sequentially during their forward strokes, and substantially simultaneously during their return strokes to permit the totalizer actuator to be restored prior to the restoring movement of the control member, and a spring connecting the control member With the totalizer actuator for effecting the return movement of the control member upon being released by the return movement of the first oscillating bar.

14. In a differential mechanism for a machine the extent of movement of the control member, means including two levers pivoted together, one of said levers pivoted to the control member and the other of said levers pivoted to the setting means, means to move the control member tothe position determined by the manipulative means to thereby position the end of the lever pivoted thereto into a position commensurate with the set position of the control member, and actuating means to move the levers into positions wherein they are in parallel relationship With each other, said parallel relationship being determined by the set position of the control member whereby the setting means is set into a position commensurate with the set position of the control member.

15. In a difierential mechanism for a machine of the class described having an indicator and a totalizer, the combination of a differentially settable control member, an indicator setting means, manipulative means settable to control the extent of movement of the control member, means including two levers pivoted together, one of said levers pivoted to the control member and the other lever pivoted to the setting means, means to move the control member to the position determined by the manipulative means to thereby position the end of the lever pivoted thereto to a position commensurate with the set position of the control member, locking means normally engaging the setting means, to lock the setting means against movement until the control member is set under control of the manipulative means, means to move the locking means out of engagement with the setting means and into engagement with the control member after the control member has been set under the control of the manipulative means to lock the control member in set position, and actuating means operable after the control member has been locked to move the levers into position Where they are in parallel relationship with each other, said parallel relationship being determined by the set position of the control member whereby the setting means is set into a position commensurate with the set position of the control member.

16. In a machine of the class described, a differentially settable control member, an indicator setting member, a stationary stop, a first oscillating bar, two articulated beams located between the stationary stop and said first oscillating bar, one end of one beam being connected to the control member and one end of the other beam being connected to the indicator setting member, and a second oscillating bar to control the setting and return movements of the control member, said first oscillating bar operable after the control member has been set to operate said. 7

beams to cause relative movement of both beams until both beams come into contact with said stationary stop, the relative movement so pro-- duced causing the indicator setting member to move into a position commensurate with the set- 21 and a locking means to lock the indicator setting member in set position to which the control member is being adjusted, said locking means being movable from engagement with the indicator setting member and into engagement with the control member after the control member has been set, said first oscillating bar operable after the control member has been set to operate said beams to cause relative movement of both beams until both beams come into contact with said stationary stop, the relative movement so produced causing the indicator setting member to move into a position commensurate with the setting of the control member,

LOUIS EMILE ZURBUCI-IEN.

22 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Certificate of Correction Patent No. 2,571,645 October 16, 1951 LOUIS EMILE ZURBUCHEN It is hereby certified that error appears in the above numbered patent requiring correction as follows:

In the grant, line 1, name of inventor, for Louis Emile Zurbachen read Louis Em/t'le Zurbuchen; in the printed specification, column 2, line 29, for mounting read counting; column 8, line 60, for shaft 66 read shaft 56; column 14, line 66, for selector read selected and that the said Letters Patent should be read as corrected above, so that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 19th day of February, A. D. 1952.

THOMAS F. MURPHY,

Assistant Oommiasioner of Patents.