US1930237A - fuller - Google Patents

Description

Oct. 10-, 1933. F. L. FULLER 1,930,237

CASH REGISTER Original Filed May 23, 1919 2 Sheets-Sheet l 8 Frederick L. Fuller Hi. 6H0: "a

Oct. 10, 1933. v FULLER 1,930,237

CASH REGISTER Original Filed May 23, 1919 2 Sheets-Sheet 2 Frederick L. Fuller By I MW Patented Oct. 10, 1933 o sH REGISTER V Fuller, Ilion, N. Y., assignor to The Frederick L.

National Cash Register a Company, Ohio, a corporation of Maryland Original application May 23,1919, Serial No.

Dayton,

299,112. Divided and this applicaticnMarch 25, 1927.. Serial No. 178,433

'l'Claims. (01. 235-138) I This is a division of the application for'Letters Patent of the United States, of Frederick L.,Fuller, Serial No. 299,112, filed May 23, 1919, issued into Patent, No. 1,761,718, on June 3, 1930.

One. object of this invention is. to provide a novel form of transfer mechanism for totalizers. The transfer mechanism may be used with a single totalizer, or in connection with a plurality of totalizers. In the present application a plu- IO rality of totalizers and transfer mechanisms are shown, and the transfermechanisms are arranged so as to be operated by a common driving mechanism. The transfer mechanism shown herein, being operated by a single driving mechanism, has its advantages over other types of transfer mechanisms used in connection with a plurality of totalizers in that, in the present case, by the use of the single driving mechanism, the number of parts is materially reduced.

80 Another object of this invention is to arrange the actuators, totalizers and transfer mechanism in such a way as to permit the transfer mecha-' nism to be operated wholly independently of the actuating mechanism. By the use of this confor operating the transfer mechanism; hence, a more reliable transfer is obtained.

Withthese and incidental objects in view, the

invention consists of certain novel features of Fig. 2 shows one of the transfer cams and a part ofthe transfer mechanism for one-ofthe 65, normally in engagement with a shoulder 66 totalizers. l y I a Fig. 3shows the common driving mechanism for all transfer cams.

pinions, and. shows how a carry is made from'a lower to a higher order wheel.

Fig. 5 is aside elevation of the mechanism shown in Fig.4, and in addition shows the transfer pinion aligning pawl. I i

Fig. 6 is a perspective view of the transfer trip mechanism. a r

m s The amount keys 30,.which control the various struction more time may ,be given to the means Fig. 4is an edge view of two orders of totalizer positions of the differential. mechanism, are carried in a key frame 31, (Fig. 1) supported on rods 32.

The key'frame 31 also carries azero stop pawl 33, normally in position to stop the differential mechanism in the zero position'when there is no amount key 30 depressed in that'bank.

By the mechanism shown in the parent case; whenever one of the amount keys 30 is depressed, the zero stop pawl 33 is rocked counter-clockwise to an ineffective position.

Difierentidl mechanism A main operating'shaft 40 carriesa pair of cams 41 and 42, which co-operate with rollers 43 and 44, .9;;

respectively, on a lever 45, pivoted on a shaft driving segments 51, one for each of the denom- I V inational orders of the totalizers. 1

Associated with each segment 51-is a differenso tially adjustable arm 52 having rigid therewith a gear segment 53 arranged to mesh with arack 54, slidably mounted upon the shaft46 and a shaft 56. p I p Loose on the shaft 50 and associated with each of the arms 52,-is an-arm 60 having a right angle flange 61, adapted to co-operate with thezero stop pawl 33 or the shank of a depressed key 30, to stop the differential mechanism either in the zero position or the position corresponding to the value of adepressed key. A lever 62 pivoted on a pin 63 on the arm 52, normally engages the underside of the'flange 61. The lever 62 also carries a stud 64, enteredin a notch in the forward end of the arm 60. I

Also pivoted upon the pin, 63 is a latch pawl on the driving segment 51'. The pawl 65 is also connected to the lever 62 by a pin 67. Afcompression spring 68, between-the differential ,arm

52 and the arm 60 holdsjthepawl 65. infengagement with the shoulder '66 When the partsare in the positionsshown Fig. 1,'byits clockwise movement, the segment 51 rocks the arms 52zand. 60 until the flange l05 611 contacts the shank of the depressed key.

This arrests the clockwise movement of the arm Y 60, but the segment-51 continues to move clockdisengaged from the shoulder 66 on the segment 51.

The pawl 65, when moved as above stated, causes its nose to enter one of the notches 69, appropriate to the depressed key.

The nose of the pawl is now held and locked in the notch 69, due to the fact that the rear end of the pawl is now riding upon the outer periphery of the segment 51.

The above described differential setting of the arm 52 causes its segment 53 to set the totalizer rack 54 to a position corresponding to the value of the key depressed.

In order to allow time for the latch to be disconnected from the driving segment 51 in the zero position, so that the actuating rack will not be moved when no amount key has been depressed, the arm 52 carries a stud 75, (Fig. 1) normally projecting into a slot 76 in the front edge of the rack 54.

It will also be noticed that the segment 53 is not in engagement with the rack 54 when the parts are in their normal positions.

Theslot 76 is arranged so that part of it is concentric with the center of the shaft 50. When the arm 52 is oscillated, the stud 75 slides in this concentric portion until the segment 53 engages an edge 74 of the rack 54. If there has been no key depressed, and the zero stop pawl 33 causes the latch pawl 65 to become disengaged from the segment 51 in the zero position, the arm 52 will be rocked slightly, but not enough to cause the stud 75 to become disengaged from the concentric portion of the slot 76. Consequently, when the latch is disconnected in the zero position, the pin and slot '76 keep the rack 54 from being moved out of normal position.

If any key in the bank has been depressed and the arm 52 is oscillated beyond the zero position, 40'

the pin '75 moves the rack 54 down until the segment 53 becomes engaged with the rack 54. The segment 53then moves the rack 54, thus causing the stud '75 to be disengaged from the concentric portion of the slot 76 and to enter the remaining portion and finally become entirely disengaged from said slot.

After the totalizers have been engaged with the rack 77, on the rear side of the rack 54, the cams 41 and 42 cause the shaft 50 to be oscillated counter-clockwise to its home position. As the segment 51 moves toward its home position, the tail of the pawl 65 again becomes engaged with the shoulder 66 and its nose disengaged from the notch 69. When the pawl 65 moves clockwise, a surface '78 of the segment 51 strikes a pin '79 on the arm 52, thus restoring this arm, and the arm 60 to their normal positions. The pin 75, by its engagement with the slot 76, restores the rack 54 to normal position.

Totalizers There are threelines of totalizers, each line having a plurality of totalizers thereon. Each totalizer comprises a group of wheels 90, the

wheels of likedenomination of the totalizers on the shaft being grouped together. Fig. 4 shows two orders of one of the totalizers and the wheels are marked units and tens, for convenience in describing the transfer mechanism.

.. (Fig. 2) rigid on a shaft 93, mounted for longitudinal movement to select the proper wheels for actuation. However, since the totalizer selecting mechanism forms no part of this particular invention, it is not described herein, and reference may be had to the parent case, Patent No. 1,761,718, if a description of the selecting mechanism is desired.

Mounted on sleeves projecting in the side frames of the machine, is a pair of arms 94, (one only being shown) supporting an aligning bar 95, which aligns all totalizer wheels 90 except those being operated by the racks '77, the bar 95 being notched at points opposite the racks 77.

In order to bridge over the notches in the aligner bars 95 when the totalizer shaft is being moved laterally for selection purposes, an aligner 96 is moved into engagement with the totalizing pinions by means not shown.

Transfer mechanism for totalz'zers Each of the groups comprising a plurality of individual totalizers is provided with a novel form of transfer mechanism which will now be described.

Fast on the main shaft 40 is a cam 100 (Fig. 3) co-operating with a roller 101 on a lever 102, pivoted on a stud 103. The lever 102 carries a pin 104 co-operating with a slot in a sliding bar 105, the lower end of which. is guided on the rod 99. The upper end of the bar 105 is guided by a bracket (not shown) carried by the machine frame. The cam 100, through the lever 102 causes, first an upward movement of the bar 105, holding the bar in this position for approximately one-half of the operation of the machine, and then lowers the bars to its normal position.

The upper end of the bar 105 has a rack 106 meshing with a pinion 10'7 fast on the shaft 108. Also fast on the shaft 108 are a number of disks 109, (Figs. 1 and 2) one co-operating with the transfer mechanism for each of the totalizer wheels (except the units wheel) of the selected individual totalizer. Each of the disks 109 has a cam race 110 co-operating with a roller 111 on a lever 112, pivoted upon a shaft 113, supported in themachine frame. Each of the levers 112 is pivoted to a universal bar 114, the lower end of which is guided by the rod 99.

Each disk 109, lever 112 and 114 is common to the same denominational order for the three lines of totalizers.

The up-and-down movement of the bar 105, previously described, rotates the disk 109 first counter-clockwise and then clockwise to normal position. The races 110 are so arranged that they become effective, to cause a transfer, in succession acting from lower to higher numerical order, so that as they are rotated, the levers 112 will be rocked first clockwise, one after the other, starting with the disk associated with the transfer mechanism for the highest totalizer wheel. When the disks 109 are rotated to normal positions, the levers 112 are rocked counter-clockwise, and the bars 114 raised to their home positions, one after the other, starting with the one associated with the tens wheel.

Each of the universal bars 114 has three lugs 120, (Figs. 1, 2 and 5) which, when the bars 114 are in their normal positions, receive and support pins 121 carried by transfer pawls 122. Each pawl 122 is pivoted at 123 to an arm 124, loosely mounted upon a sleeve 125, through which the shaft 93 slides. These sleeves 125 are held against rotation, while the'shafts 93 are free to slideback and forth therethrough to select the various individual totalizers for operation.

' lever 128.

gaged from the transfer pawls 122.

1,930,287 Thefarm' 124, in addition to" being supported by the transfer pawl 122, asjust described, is also supported at times by a hook 126, (Figs. 1, 5 and, '6) engaging'al'ip 127,011 the arm 124. r

The hook 126 is on the lower end of a twoarmed lever 128, secured to a sleeve 129, loosely mounted upon arod 130; supported by the arms 94, The hook 1261s normally held' in engagement with the lip 127 by a spring 131 stretched between'studs carried by the arm 124 and the Also secured to the sleeve 129 is a trip lever 132, having. a lip 133 with which co-bperates along tooth 134 on' thetotalizer wheel 90. Adjac ent each trip lever 132 rss pinion 135, which meshes with the selected totalizer wheel 90. Whenthe parts are in' their home positions, as

illustrated, thealigner bar 96 is not in engage-.

ment with the totalizer wheels, so that those wheels of the selected'totalizer wouldbe free to move outof alignment were not some aligning means provided. An aligner pawl 136 is provided for each pinion 135, and is held in engagement therewith by a spring 137 stretchedbetween a stud on the pawl and the pin 121 of the transfer pawl 122. t

The operation of the transfer mechanismfduring adding, is' as follows; The cam- 100 (Fig. 3) rotates in the direction of the arrow, and, asbefore'stated, through the lever 102 and bar 105, oscillates the shaft 108 and disk 109 first counter-clockwise, thenclockwise, as viewed in Fig. 2. The disks 109 by their counter-'clockwise'movement'slowerthe bars 114, and as they move downwardlyfthe lugs are moved from beneath the pins 121, and consequently the arms 124 and transfer pawls 122, for all three lines of totalizers, are held in their upper positions by the hooks 126.

As the bars 114 move downwardly, projections 140 thereon engage pins 141 on the aligner pawls 136 and disengage said pawls from the pinions 135. The movements of these parts are so timed that the wheels 90 are in engagement with the racks .77 before the pawls 136 become entirely disening the time the amounts are accumulated upon the selected totalizers.

The pinions 135 always remain in engagement with the totalizer wheels 9!). Therefore, when the totalizer wheels are moved into engagement with the racks 77, the pinions 135 become disen- When this occurs the pawls 122 are rocked slightly counterclockwise by their springs 137 until the pins 121 lie against the rear sides of the bars 114. The engaging movement of the totalizer is not suf- .ficient to disengage the hooks 126 from the lips "127 of the arm 124. The slight upward movement of the shafts 130, however,-raises the arms 124 slightly, during which time the pins 121 slide up the rear edges of the bars 114. I

As viewed in Figs. 1, 2 and 5, the adding movement of the totalizer wheels 90 is clockwise. Considering now particularly Figs. 4 and 5, when the long tooth 134 reaches the lip 133, it cams the trip lever 132 counter-clockwise. This action takes place when the units wheel 90 passes from 9 to zero. The trip lever 132, through the sleeve 129, rocks the lever 128 counter-clockwise and disengages the hook 126 from the lip 127, and the spring 131 rocks the arm 124 clockwise, which carries the transfer pawl 122 downwardly until the'number of parts in the machine.

the pm 121 engages the lug 120, which, it will'be remembered, is in its lowest position at thistima due to the previous downward movementof thebar 114.

To'insure'a positive downward movement of the arm 124, and transfer pawl 122, when the 'hook 126 is disengaged from the lip 127,.means is provided for actuating them in addition to the springs 131. This means comprises an arm 142; of thelever 128, which arm 'co-operates with a lip 143 on the arm 124. Since the arm 142 receives a positive movement by the long tooth 134, engagingthe lip 133, should the spring 131 become s1uggish,-or fail to act for any reason at all, the arm 142 will contact the lip143 and positively move thearm 124 downwardly consequently lowering the transfer pawl 122. There is a clearance between. the lip 143 and the arm 142, which clearance is to provide time for disengaging the hook 26 the lip 127. r After the amount set upon the racks 5977 has'been transferred to and accumulated in the selected totalizenduring which time various of the trip levers 132 may have been actuated to drop their associated transfer pawls 122, as just described, the totalizer wheels 90 are disengaged from the racks 77. When the totalizer wheels 90 reach their normal disengaged positions, the pinions 135 will be above the tripped'transfer pawls 122, and when said pawls are move d upwardly, each pawl engagesa tooth of its associate ed pinion 135 below the one withwhich it is illustrated in contact in Figs. 2 and 5, the pins 121 tions. The bars 114 are thus moved upwardly 195 one after the other, starting with the bar associatedwith the tens totalizer wheel, until they reach their normal home positions, shown in Figs. 2 and 5. During the upward movement of the bars 114, the lugs 120 engage the pins 121 1%! of the transfer pawls 122, and move the latter upwardly a distance sufiicient to engage them with their associated pinions 135 and cause said pinions to move one additional step, which extra movement is transmitted to the associated totalizer wheels 90. The upper surface of each lug 120 is inclined so that it acts as a cam, and thereby insures that the pawl 122 will not become disengaged from pinion 135. As the transfer pawls 122 are lifted to effect the transfer, they 180 also move the arms 124 counter-clockwise thus raising the lips 127 thereof above the hooks 126 whereupon the springs 131 move said hooks beneath the lips 127 to maintain the arms 124 in their normal positions.

From the above description it can beseen that, if a totalizer in each of the three lines of totalizers is being operated, and a transfer takes place, for instance, from the units to the tens order in each of the three totalizers, transfer mechanisms are operated all at one time, by a single bar 114. This arrangement materially reduces Moreover, it will also be noticed that the single driving mechanism, consisting of the cam 100 lever 102, bar 105 and pinion 107 also materially reduces the number of parts in the machine, because this single driving mechanism operates the transfer mechanisms for as many denominational orders as it is desired to have in the totalizers.

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 of embodiment herein disclosed, for it is susceptible of embodiment in various forms all coming with the scope of the claims which follow.

What is claimed is:

1. In a transfer mechanism, the combination of a totalizer element, a transfer carrying arm, a transfer pawl pivoted on the free end of the carrying arm, and means cooperating with the pawl to actuate the carrying arm to cause a carry to be entered and to lock the totalizer wheel against accidental movement at the end of the carry movement.

2. In a transfer mechanism, the combination of a totalizer element, a transfer carrying arm, a transfer pawl pivoted on the carrying arm, a reciprocating member, and a cam on the reciprocating member to actuate the pawl and to cooperate with the pawl at the end of the carry movement to prevent accidental rotation of the totalizer element.

3. In a transfer mechanism, the combination of a totalizer element, a transfer carrying arm, a transfer pawl pivoted on the carrying arm, a reciprocating element, a cam on the reciprocating element adapted to normally maintain the pawl in contact with the totalizer element to prevent rotation thereof, means to actuate the reciprocating element to release the totalizer element for actuation, and a stripping device to determine when the reciprocating element shall cause the pawl to add into the totalizer element.

4. In a transfer mechanism, the combination and a spring between the carrying arm and the tripping means to maintain the tripping means in its supporting position.

5. In a transfer mechanism, the combination of a totalizer element; a carrying arm for effecting carries; a tripping means for the carrying arm; an arm extending into the path of the carrying arm to support the carrying arm; another arm, on the tripping means, adapted to engage and actuate the carrying arm; and means to actuate the carrying arm to enter a transfer and to restore the last-named arm to its normal position.

6. In a transfer mechanism, the combination of a totalizer element, a transfer carrying arm, a projection on one edge of the carrying arm, a tripping element normally projecting beneath the projection, means to withdraw the tripping element from beneath the projection, another projection on an edge of the carrying arm, and an arm on the tripping element to strike the second-named projection when the tripping element is withdrawn from the first-named projection.

'7. In a transfer mechanism, the combination of a totalizer element, a transfer carrying arm, a tripping element normally supporting the carrying arm, means to withdraw the tripping element from its supporting position, and an arm on the tripping element to strike the carrying arm when the tripping element is withdrawn from its supporting position.

FREDERICK L. FULLER.

Images