US2015701A - wheelbarger - Google Patents

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US2015701A
US2015701A US2015701DA US2015701A US 2015701 A US2015701 A US 2015701A US 2015701D A US2015701D A US 2015701DA US 2015701 A US2015701 A US 2015701A
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totalizer
transfer
shaft
cam
arm
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06MCOUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00Design features of general application
    • G06M1/14Design features of general application for transferring a condition from one stage to a higher stage
    • G06M1/143Design features of general application for transferring a condition from one stage to a higher stage with drums
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06CDIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C15/00Computing mechanisms; Actuating devices therefor
    • G06C15/42Devices for resetting to zero or other datum

Description

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@du 1 @3350 A. s. WHEELEARGER TRANSFER MECHANISM FOR A TOTALIZER Filed Feb. 18, 1932 2 Sheets-Sheet l [N VENTOR [/[erf ifii e f mgm 11;, 19335 A. s. WHEELBARGER TRANSFER MECHANISM FOR A TOTALIZER Filed Feb. 18, 1932 2 Sheets-Sheet 2 Patented Oct. 1, 1935 UNETED STATES PATENT- OFFEQE by mesne assignments, to Central United National Bank, Cleveland, Ohio, as trustee Application February 18, 1932, Serial No. 593,743
8 Claims.
This application is a continuation in part of the patent of Albert S. Wheelbarger and Grover C. Coil, nutznhcr 6,118, dated September 6, 1932. In the said patent the totalizer wheel of lower denomination is provided with a transfer tooth which cocks a transfer arm while the totalizer is in mesh with the actuating segments therefor and after the totalizer has been disengaged from the actuating segments this arm is spring actuated to advance the totalizer wheel of next higher denomination one unit. In cases, however, where a large number of transfers will take place practically simultaneously, as where for in stance the operator adds one to the number previously standing on the totalizer wheels, say $99,999.99, no less than seven transfers must take place almost simultaneously. If the machine is made very rugged and out of heavy parts, this transferring in the case cited might require considerable energy and I, therefore, deemed it advisable to eliminate the spring to actuate the transfer mechanism and to substitute in place thereof a series of staggered cams which will successively engage the transfer arms so that the transfer from units to-tens will take place and immediately thereafter the transfer from tens to hundreds, etc. Each one of these arms has a separate cam and all of the cams are connected together so that the correct sequence will take place and each of the transfer arms will be positively actuated by means of these cams.
In the drawings:
Fig. 1 is a side elevational view of one side of the machine with the casing removed;
Fig. 2 is a detailed elevational view of a part of the mechanism to actuate the totalizer cams;
Fig. 3 is a side elevational View, partly in cross section, of the left hand side of the totalizer shown in Fig. 4;
Fig. 4 is a front elevational View, certain parts being fragmentary, of the tootalizer;
Fig. 5 is an elevational view, partly in cross section, on the line 5-5 of Fig. 4 looking in the direction of the arrow;
Fig. 6 is a cross sectional view on the line 66 of Fig. 3; and
Fig. '7 is a side elevational view of one of the transfer arms and associated mechanism.
- ,A crank l is secured to a shaft 2 which carries a gear 3 which drives a gear 4 secured to a shaft 5 which carries a gear 6 which drives a gear 1 secured to a shaft 8, which shaft has secured thereto a box cam 9 provided with a cam race I 0.
The side wall it of the machine carries a fixed pin 12 which extends within the bifurcation 13 of the lower portion of a bar l4 which carries a pin IS on which is mounted a roller E6. The pin l2 serves as a guide for the bar i i. The roller it extends within the cam race it! and as the box cam 9 rotates in the direction of the arrow shown in Figs. 1. and 2 the bar M will be first raised and then lowered. The upper end of the bar i4 is provided with a pin ll which is carried by an arcuate rack l8 pivoted on a shaft H9. The arcuate rack l8 meshes with and drives a pinion 2d mounted on a stud shaft 2! carried by the side wall H. The shaft 2! is also provided with a pinion 22 which meshes with a pinion 23 mounted on a shaft 24 which is carried by arms 25 and 26. The pinion 23 drives a pinion 2i secured to a cam shaft 28. The shaft 28 is supported in the side walls 29 of the totalizer which is moved back and forth so as to bring the totalizer wheels into and out of mesh with the totalizer actuating segments 39, as is well known in the art but which mechanism forms no part of this invention and need not be described. The arms 25 and 25 are necessary inasmuch as the axis of the shaft 2| is a fixed axis for the shaft is supported on the side wall it whereas the axis of the shaft 24 is movable for it partakes of the movement of the totalizer as the frame is moved towards and away from the actuating segments 39. The gearing arrangement described is such that when the crank i is rotated one time, the cam shaft 28 will rotate approximately 324 degrees in a clockwise direction as viewed in Figs. 3 and 5, which rotation is caused by the elevation of the bar I 4. When the bar i4 is lowered by the cam race, the shaft 28 will be rotated in an anti-clockwise direction as viewed in Figs. 3 and 5 the same number of degrees, or back to its home position. It will be noted from viewing Fig. 2 that the lower portion of the cam race as viewed in the said figure forms an arc of a circle for something less than 180 degrees and there is, therefore, a dwell between the clockwise and anti-clockwise rotation of the shaft 28, which dwell takes place while the totalizer wheels are in mesh with the actuating segments 3i! therefor. In other words, the shaft 23 is rotated approximately 324 degrees prior to the time that the totalizer is brought into engagement with its actuating segments (iii, there is then a considerable dwell while the totalizer wheels are in engagement with the totalizer actuating segments 39, the totalizer is then disengaged as will be hereafter described and thereafter the shaft 28 is rotated approximately 324 degrees in an anti-c1ockwise direction so as to effect the carrying operation after the totalizer wheels have been disengaged from their actuating segments 30.
On the front of the box cam 9 as viewed in Fig. 1 is a cam race 3| which receives a roller 32 carried on a stud 33 secured to a lever 34 pivoted on a stud 35. A lever 36 is pivoted on a shaft 31 carried by the side walls The lower end of the lever 36 is provided with a pin 38 and the upper end of the lever 34 is provided with a pin 39 which are connected by a spring 40. The shaft 31 has secured thereto two arms 4| which are bifurcated at their upper ends and receive a bar 42 which extends between the two side walls 29 of the totalizer. By this means the totalizer frames are shifted first towards the actuating segments 30 and then, after the actuating segments 30 are actuated, the totalizer frame is moved to its outer position so as to disengage the totalizer wheels from the actuating segments 38.
When the arms 4| have been rotated counterclockwise so as to move the totalizer frames 28 inwardly the totalizer wheels 43 are brought into mesh with the actuating segments 30 and when the actuating segments are rotated an amount corresponding to the amount set up on the cash register, as is well known in the art, the totalizer wheels 43 will be corresponding actuated. These wheels are loosely mounted on the shaft 44 and each of these wheels is provided with a transfer tooth 45 which is in the position shown in Fig. 4 when the totalizer wheel to which it is attached stands at zero or in the position shown in Fig. 5 when its totalizer wheel stands at 8.
It will be remembered that the shaft 28 is rotated approximately 324 degrees as the totalizer wheels 43 are being brought into mesh with the actuating segments 30.
This shaft 28 is provided with a cam 46 (Fig. 5) which is rotated clockwise as viewed in Fig. 5 until it engages the left hand end of a lever 41, rotating the said lever counter-clockwise. This lever is pivoted on the bar 42 and carries a pin 49 in a depending arm, which pin is connected to a plate 5|] integral with a holding member 5| which underlies all of the transfer arms 52 pivoted on a shaft 53.
An arm 48 is pivoted on the bar 42 and is pulled downwardly by means of a spring 54. This arm 48 is provided with a shoulder 55 and the transfer arm 52 is provided with an arm 56 ,so that when the transfer arm 52 is raised by the cam 46 the upper end of the arm 56 will be just above the shoulder 55 and the arm 52 will be held in its partly elevated position by the holding member 5| holding the nose 66 just above the teeth of the totalizer wheels 43. The arm 52 is provided with a pin 51 which carries a transfer pawl 58 which is urged towards the totalizer wheel 43 by means of a spring 59. A lever 60 is pivoted on a shaft 6| and at its other end is provided with a bifurcation which receives the pin 51. This lever 60 is provided with a transfer lug 62 which is adapted to be engaged by the transfer tooth 45. It will, of course, be understood that there are as many transfer arms and associated mechanisms as there are totalizer wheels with the exception of the over-flow wheels and with the further exception that there is only one holding member 5| which contacts with all of the transfer arms 52.
As soon as the machine commences its opera-- tion the totalizer wheels 43 are moved into mesh with the actuating segments 36 as heretofore described, which movement is accomplished by the roller 32 engaging the edge of the cam race 3|. Almost immediately thereafter the cam race l8 raises the bar M which rotates the cam shaft 28 clockwise for approximately 32 i degrees so that the cam 46 engages the lever 41 raising the holding member 5| so that the upper end of the arm 56 is just above the shoulder 55 and raising the nose 66 of the arm 52 out of the path of movement of the teeth on the totalizer wheel 43. The actuating segments 36 are then rotated as is well known in the art thereby actuating the totalizer wheels 43. If any of the transfer teeth 45 should engage its transfer lug 62 the lever 60 would be raised and through its connection, by means of the pin 51, with the transfer arm 52., the said transfer arm will be rotated clockwise as viewed in Figs. 4 and 5 so as to bring the upper end, of the arm 56 beneath the shoulder 55 and the spring 54 will pull the arm 48 downwardly so that as soon as the transfer tooth 45 passes beyond 3- the transfer lug 62 the upper end of the arm 56 will engage the shoulder 55 and the transfer arm 52 will, therefore, be held in its elevated position. The cam race 3| then actuates the lever 34 and arm 4| so as to move the totalizer frame outwardly and disengage the totalizer wheels 43 from the actuating segments 30. The cam race In now lowers the bar 4 and rotates the cam shaft 28 in an anti-clockwise direction so as to release the cam 46 from the lever il' whereupon a :1.
spring 63 connected to an extension of the arm 56 pulls downwardly any of the arms 52 which are not in their extreme elevated position caused by a transfer tooth having caused its arm 56 to be engaged by the shoulder 55 thereby rotating the holding member 5| to its home position. Any of the arms 52 which are now held in their extreme elevated position by its arm 56 engaging the shoulder 55 will continue to be held in this elevated position but immediately after the holding member 5| has been lowered, transfer cams 54 carried by the cam shaft 28 will engage surfaces 65 on the levers 60 thereby depressing the said levers 68. The upper end of the arms 56 will be cammed out from the shoulders 55 and these transfer arms 52, being now free, are moved downwardly by the cams 64 so that the transfer pawls 58 will engage the teeth of the totalizer wheel of next higher order and rotate it clockwise, as viewed in Figs. 4 and 5, a distance corresponding to one unit. Immediately thereafter the nose 66 of the arm 52 will engage the totalizer wheel 43 and lock it against further rotation which also prevents this wheel from being overthrown. The transfer cams 64 are staggered as r are shown in Fig. 5, there being as many such cams as there are transfer arms. This staggered arrangement is such that the transfer takes place from the units to the tens wheel and immediately thereafter the next cam 64, which might be called the tens cam, causes the actuation of the tens transfer arm which transfers from tens to hundreds and so on. It is to be noted that these cams will be positively actuated and do not rely for their function upon any spring or other yie1dable connection. In describing the transfer mechanism as being positively actuated, it is intended to convey the idea that its function does not rely upon springs for the carrying movement of the transfer arm.
I have also provided a novel resetting mechanism for the totalizer which prevents the machine being operated when the resetting key is in place or while the resetting key is being turned and whereby the resetting key cannot be removed from the totalizer until the totalizer has been completely reset. To this end I have provided a lever 61 which normally extends over the key hole 68 so that in order to insert the key 69 it is necessary to depress the lever 61. This lever 61 is pivoted on the shaft 2| and is provided with an extension I9 which underlies a pin H on a lever I2 pivoted on the shaft I 9 and having an extension I3 which carries a pin I4 which engages an arm I5 secured to a shaft I6. The shaft I6 also has secured thereto an arm II which carries a pin I8 secured to the upper end of a bar I9 which at its lower end is provided with a lug 80 adapted when depressed to engage a recess 8| in a disk 82 secured to the shaft 5 so that if the lever 61 is pulled downwardly so as to insert the key, the shaft 5, and hence the crank I, is locked against rotation.
An outer plate 83 is provided with a barrel 84 which receives the stem of the key 69 and is normally pressed outwardly by means of springs 95. When the key is positioned inwardly so as to overcome the tension of the springs 85 thereby moving the plate 83 inwardly a notch 86 thereof engages a stud 81 in a barrel 88 secured to a cam 89, a Geneva gear 90, Geneva disk 9|, and ratchet 92. The cam 89 as will be noted in Fig. 3 is a circle except that at its upper portion as viewed in Fig. 3 it has a shorter radius than on the lower portion thereof. A pin 93 rides on the periphery of this cam 89 so that as the cam is rotated in a clockwise direction as viewed in Fig. 3 by means of the key this pin 93 will be raised. This pin 93 is carried by the lever 41 and by raising the pin 93 the holding members 5| are also elevated so as to disengage the noses 66 from the totalizer wheels so that the totalizer wheels can be reset. This pin 93 simply rides on the periphery of the cam 89 until the totalizer wheels have been reset, whereupon the shoulder 94 of the cam 89 passes beyond the pin 93 thereby releasing the lever 41 and the spring 63 thereupon pulls the arms 52 downwardly until they engage the shoulders 66 with the totalizer wheels 43. The Geneva gear 99 and Geneva disk 9|, as is shown in Fig. 3, engage a Geneva pinion 95. This pinion is provided with one cut-away tooth and adjacent teeth 96 and 91 will normally engage the periphery of the disk 9| locking the pinion 95 against rotation. When, however, this disk 9| is rotated by means of the key the Geneva gear 90 engages a narrow tooth 98 of the Geneva pinion 95 and starts the Geneva gear 95 to rotating. It is then given one complete rotation and thereby drives the pinion 99 and the shaft 44 to which it is secured one complete revolution. The shaft 44 is provided with resetting pawls IIlII, there being one such resetting pawl for each totalizer wheel, which pawl engages notches IIII in the totalizer wheels and resets them to zero position.
A disk I92 is also secured to the shaft 44, which disk is provided with a notch I93. The normal position of this notch is shown in Fig. 5. A lever I94 is pivoted to a shaft I95, which lever has a nose: I96 which normally rides on the periphery of the disk I92. At its other end the lever I94 is pivoted to the shaft 6 I which is also the shaft on which the lever 99 is pivoted. When the parts are in the position shown in Fig. 5 it is utterly impossible to rotate one of the totalizer wheels by means of a screw driver or other tool because the nose 99 of the arm 52 is projecting between two adjacent teeth of the totalizer type wheel and preventing rotation in a clockwise direction as viewed in Fig. 4 and the pawl 58 prevents rotation in an anticlock direction as viewed in the said figure. The surface IIII (Fig. '7) of the lever 52 is lying directly beneath the cam 64, which cam extends so closely adjacent the surface H9 that it would be impossible to raise the lever 52 a suifi- 5 cient distance to permit the nose 65 to clear the teeth of the totalizer wheels 43. This construction absolutely locks the totalizer wheels against unwarranted manipulation.
The transfer tooth 45 as shown in Fig. 5 is in its ninth position and in Fig. 4 it is in its zero position. It is, therefore, apparent that this transfer tooth will pass beneath the transfer lug 62 on the last part of the resetting movement of the shaft 44. As the transfer tooth 45 reaches the transfer lug 62 the notch I93 is adjacent the nose I06 of the lever I94 and the spring III pulls the nose I96 into the notch I93 thereby rotating the lever I04 clockwise around its pivot I95 thereby elevating the shaft BI and thereby raising the left hand end of the lever 60 as viewed in Fig. 4 so as to raise the transfer lug 62 out of the path of movement of the transfer tooth 45. As soon as the transfer tooth 45 has moved from the positionshown in Fig. 5 to that shown in Fig. 4, in which latter case it is at its reset or zero position. The nose I96 is cammed out of the notch I83 so that the lever I94 is rotated anticlockwise, thereby lowering the shaft 8I and lever 69 so that the transfer lug 62 is again in its 2-0 normal position. Preferably there are two such disks I02 and two levers I94 on opposite sides of the machine, whereas the shaft 5| connects all of the levers 59 so that all of the levers 69 are raised as above described when the transfer tooth is passing from its ninth to its zero position. In the regular adding operation it will be remembered that the lever 52 is raised so as to permit the transfer tooth passing beneath the transfer lug 62 and it is only on the resetting operation that it is necessary to elevate the shaft 6|.
A spring I91 urges a pawl I98 into engagement with the ratchet 92 so as to prevent the key being turned in an anti-clockwise direction as viewed in Fig. 3. When the rotation is completed the springs 85 will position the key 59 outwardly so that it will engage a key hole in the fixed bar I 99 so that further rotation is impossible.
It is, therefore, apparent that in order to insert the key it is necessary to pull downwardly on the lever 91 and this movement locks the machine against operation. It is furthermore apparent that the key is ejected after the totalizer wheels are reset.
I realize that many changes may be made in the specific form of this invention shown and described by way of illustration in this application and. I, therefore, reserve the right to make such changes in the specific form of the invention as shown herein as I may find to be desirable. I, therefore, claim the invention broadly except as I may limit myself by the appended claims.
Having now described my invention, I claim:
1. In a register, totalizer wheels, transfer levers whereby a wheel of lower order will control the actuation of the wheel of next higher order on a carrying operation, cam means whereby said levers are raised initially each time the machine operates, cam means to raise any one or more of said levers a greater distance if a transfer operation is involved, and cam means to depress all of said levers to their initial position and hold said levers in their depressed position until the register isreither again operated or the totalizer is reset.
2. In a register, totalizer wheels, transfer levers whereby a wheel of lower order will control the actuation of the wheel of next higher order on a carrying operation, cam means to raise any lever which will carry on that operation to a greater extent than the levers which will not carry on that operation, and cam means to depress all of said levers to initial position and hold said levers in their depressed position until the register is either again operated or the totalizer is reset.
3. In a machine having a carrying mechanism, a carrying arm, a totalizer wheel, means whereby said arm is moved a predetermined distance on each operation of the machine, means whereby said arm is moved an additional distance when the totalizer wheel moves from its maximum number position to its zero position, a cam, and means whereby said cam thereafter engages said arm so as to positively move said arm to its initial position and lock it in the initial position.
4. In a machine having a carrying mechanism, totalizer wheels, means whereby said carrying mechanism adds a unit to one of the totalizer wheels after the totalizer Wheel of next lower order has passed to its zero position, means whereby said carrying mechanism normally locks all of said totalizer wheels against any movement and means to prevent rendering the last named means inoperative unless the machine is being operated or the totalizer is being reset.
5. In a carrying mechanism, a cam, a totalizer wheel, means whereby said cam actuates said totalizer wheel when carrying, and means whereby said cam normally locks said totalizer wheel against being moved by any tool.
6. In a machine, a carrying mechanism including a totalizer wheel, a resetting mechanism for said totalizer wheel, locking means forming a part of said carrying mechanism whereby said totalizer wheel is normally locked against any movement, means to prevent rendering the last named means inoperative unless the machine is being operated or the totalizer is being reset, and means whereby when either the machine or the resetting mechanism is operated said locking means is rendered inoperative.
'7. In a machine, an operating mechanism, a totalizer wheel, a, key operated resetting mechanism, a carrying mechanism, means controlled by the resetting mechanism to move a part of said carrying mechanism out of engagement with said totalizer wheel shortly after the resetting mech-- anism commences its operation, and means to remove another part of said carrying mechanism out of engagement with said wheel when the resetting mechanism has almost completed its operation.
8. In a register, a totalizer wheel, an arm, a
carrying pawl mounted on said arm and serving as a means to actuate said totalizer wheels on a carrying operation, a nose forming a part of said arm, said nose and pawl serving as a means to prevent said Wheel being rotated when said machine is not in use, and means normally locking said arm against being moved sufficiently to disengage said nose and pawl from said totalizer wheel.
ALBERT S. WHEELBARGER.
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