US2259344A - Multiple totalizer steuctuee - Google Patents

Description

Oct. 14, 1941. w. KIEL MULTIPLE TOTALIZER STRUCTURE 4 Sheets-Sheet 1 Zwenion Filed March 30, 1957 Oct. 14, 1941. w. KIEL MULTIPLE TOTALIZER STRUCTURE 4 Sheets-Sheet 2 Filed March 30, 1937 n 1w n a w 7 m.w\ T J I w? Q \N 5 o a. flaw mw Q m T Q a @N .E o a F V m a I Y -24 .I E a J. .sw Q Mm g Q (X Q Q 8 NN MN o o 4/ 0 o o o g A J w /q Y A 3 m ME w 0d. 14, 1941. MEL 2,259,344

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Patented. Oct. 14, 1941 MULTIPLE 'ro'rauznn srnuo'runa Wilhelm Kiel, Glashutte, Germany Application March 30, 1937, 361481 ,90

Germany March 31, 1938 (Halms.

This invention relates to a calculating apparatus and has particularly to do with the mechanism for operating of totalizer drums.

In existing calculating apparatus, drums are employed which have a large number of totalizers arranged peripherally to be brought into engagement selectively with displaceable members of the calculating apparatus. Numerous devices for operating the totalizer drums are known. For instance, there has been a rotating arm coupled. to the totalizer drum and so arranged that the projections in the periphery of the drums can be brought into the path of the arm by means of the operating keys. These projections selectively lock the totalizers in operative position. This type of device is complex and is not capable of efflcient operation from the paper carriage of the apparatus.

Another old device is that in which spirally arranged projections are connected with the drum to cooperate with a projection operated by the paper carriage. The spiral arrangement of the projections involves mechanical difllculties. Moreover, it is desirable that the projection and a coupling pawl slide relatively to one another while being driven under considerable power. Thiscauses a great stress on the operating parts. The object of the present invention is to provide a simple and eilicient drum controlling broken awayto make the operation of the device more clear.

Figs. 3 to 5 are partial elevations of certain elements of Figs. 1 and 2 showing details of the mechanism.

Fig. 6 is a view similar to Fig. 1 showing the parts just prior to the return operation.

Referring to the drawings, a totalizer drum I, rotatably mounted on a shaft I8, is provided with peripherally spaced totalizers 2. In the device shown, there are fifteen totalizers spaced around the drum. Each of the totalizers 2, when in operative position, is engageable with racks 3 suitably mounted to be operated from the keyboard (not shown) of the machine.

The present invention has to do with the centrol of the movement of the totalizer drum I. The operation of drum I is directly controlled by the paper carriage (not shown) which shifts a stepped bar or rail 4. The rail 4, in the normal movement of the carriage from left to right, moves in the direction of the arrow Z (Fig. 1). Steps 4 4, etc., up to C are arranged in order along the be or rail 4 and a final and highest step 4" is provided adJacent step 4 A follower lever 8 has a contact roller 8 arranged to ride on the steps of rail 8. A spring 5 acts upon the lever 8 to maintain the roller in contact with rail 4. In the position shown in Fig. 1, the contact roller 9 beers on step 8 andthe totalizer drum is correspondingly turned into a position in which the first totalizer 2 may cooperate with the racks 8.

On shaft I8 is also mounted a wheel II having spaced radial projections I2 which correspond in number to the totalizers 2 and which cooperate successively with a hook-like detent I8 (see Figs. 1 and 4), mounted on a shaft 23. Movement of shaft 28 will shift detent I3 either into or out of engagement with the projections I2. If projections I2 are not engaged by detent I8, then shaft I8 may be turned by a motor shaft M acting through a clutch 21 and a belt 28. Clutch 21 is a suitable disengageable type illustrated diagrammatically and arranged to be controlled by a rod 26, movement of which will be later explained.

Movement of control shaft 23 and detent I3 is effected through a lever 22, also secured to shaft 28. At the top of lever 22 is a broad end 2| arranged to be contacted by a slide-member I8 slidable longitudinally of a slide I5. A spring I9 tends to hold slide-member II in the position shown in Fig. 1, thereby tending to hold detent I3 in engaged position. Slide I5 is shii'table longitudinally of a support plate It of the machine frame. A spring II terds to hold slide I5 to the left as viewed in Fig. 2. a rod :4 on slide is extends toward follower-lever 8 and is provided with a bent over end which is contacted by a pin 8' on lever 8. If the paper carriage is shifted so that another step, for example, step 4', is contacting roller 9, lever 8 will be shifted and through pin 8' and rod II will draw slide I5 and slide-member I8 to the right against the action of spring II.

A spring 24, Fig. 4, of greater strength than spring l9, between slide l4 and slide-member ll, tends to turn shaft 23 in a direction to release the prolections |2 of wheel II from the locking action of the detent l3. This release is, however. controlled by stems 20 26, 20 on a bar which isftransversely slidable on plate "5. As viewed in Fig. 1, slide-member l8 bears at one'end on step 20 of bar 20. Bar 20 is movable in a direc-; tion parallel with the operative movement of the paper carriage and rail 4. As soon as slide i6 and slide-member 8 are displaced to the right, as above explained (Fig. 1), by the movement of rail 4 and follower-lever 8, slide-member is will no longer be supported by step 20 of bar 26. Consequently, spring 24 acting on shaft 23 may turn lever 22 and the broad-end 2| will shift slidemember l8 against spring l3. This movement of shaft 23 releases detent l3 from wheel Mounted also on shaft 23 (Fig. 2) isa forked lever 25 connected to previously mentioned rod 26 leading to the clutch 27. During the turning movement of shaft 23 permitted by the displacement of slide l5 to the right, the clutch 21 will be engaged to couple motor shaft M to chain drive 28 and drum shaft Ill. .The drum shaft will then be rotated in the direction of the arrow, Fig. 2.

Slidably splined to shaft I0' is a pinion 29 which meshes with a rack 30 on a slide bar 3|, the latter being slidable lengthwise or plate IS. The drumshaft H), in turning as above described, moves the slide bar 3| in the direction of the arrow 0: in Fig 1. A second rack 32, carried on slide bar 3|, meshes with a pinion 33 mounted on plate l6. Stepped bar 2|! is also provided with a rack 34 which meshes with pinion 33. Movement of the slide bar 3| in the direction of arrow :1: therefore causes an equal movement of stepped bar 20 in the direction of arrow 1; in Fig. 1. This movement lasts until one of the succeeding steps 20 et cetera meets the end of shifted slide-member I8 to take the place of the preceding step. Instantly the contacting step on bar 26 moves the slide-member l8 into the original position thereby shifting broad-end 2|, lever 22 and detent |3 against spring 24. The hook-like detent |3 seizes the succeeding projection l2 on wheel H and holds the drum shaft fast. Simultaneously, movement of shaft 23 opens clutch 21 through movement of fork-lever 25 and rod 26, thereby cutting out the drive between the motor-driven shaft M and drum shaft Hi.

There is arranged between the pinion 33 and a shaft 33', supporting said pinion, a spiral spring 35 which becomes stressed during the movement of the bars 3| and 20 from the initial position. This spring is used,- as will later lbe described, upon return of the paper carriage, to effect return of bars 20 and 3| to their initial positions.

The actuation of the device corresponding to other positions of rail 4 need not be described since they are the same as above described.

The described operating mechanism works with complete safety and allows exceptionally high speed to be obtained, irrespective of whether the operation is from one totalizer to the next in order, or whether any desired number of totalizers are skipped; thus, for example, one can pass from the first to the eighth, tenth or twelfth totalizer. Special regard is required only in respect of the operation involved in passing from the last totalizer to the first, because here care must be taken that the drum does not shift before the described bars and levers for operating the drum again reach their initial positions. When shifting does occur, the drum takes the short way to the home position, i. e., from the fifteenth to the first totalizer.

When the paper carriage has performed its return movement to home or untabulated position, the slide I5 is moved fully to the right by the described contact follower-lever arrangement so that the slide member l8 which is shiftable on the slide |5, is then outside the range of the last step 20 of the bar 20. This movement of slide l6 fully to the right is effected by a step 4 on the stepped rail 4, which is still higher than that of the fifteenth counter and which is arranged on the stepped rail 4 adjacent step 4 in such a way that it is opposite follower 9 when the paper carriage has passed through its return movement. At the same time, a pin l5 upwardly extending from the slide l5 passes and engages a dog 36' on a latch 36 which is pivotally attached to the frame Hi. The slide |5 with the slide-member,

i8 is accordingly held in this extreme right position. Just at the end of the return movement of the bar 26, which will be subsequently explained, a pin 31, on the bar, presses the latch 36 again into the initial position, so that the slide I5 is freed and may shift to the left by action of spring H. v

With the 'slide IS in the above described extreme right position, the slide-member M! will be moved off the last step 20 of bar 20. The detent turns the totalizer drum. As drum and wheel start the movement between the fifteenth and the first positions, a. lateral cam 38 on the wheel (see Fig. 3) engages and shifts a follower-roller 39 on a rod 46 mounted slidably on the frame. A lateral extension 40 on rod 40 normally serves as a lock for a latch 4,| which is-urged toward wheel H by a spring 42. When rod 40 is shifted by cam 38, the extension 40' will be withdrawn from latch 4| which will move toward wheel Hand come in the path of projections l2, thereby locking wheel and drum I after the wheel H has rotated slightly more than half-way from the fifteenth projection toward the first. At this point the follower 39 is about to ride oif cam 38 but the return of the part 46 to its original position is prevented by reason of contact of lateral extension 46' with latch '4|.

The latch 4|, in its movement into the locking position, also moves to the right, a rod 43 disposed under plate Hi. This rod serves to'return latch 4| to its initial position at a later time when slide l6 shifts to its extreme left position and contacts the right end of rod 43. Pivoted on plate I6 is a lever 44 having one end forked over a pin on rod 40, the other end being provided with a pin which rides in an annular groove of an extension on pinion 29. A second lever 46 pivoted on plate l8 also has an end which rides in said annular groove. A

.spring 45 acts on lever 46 tending to hold pinion 29 in engagement with rack 30. When cam 38' shifts rod 40, the pinion 29 is also shifted out of engagement with rack 30 by movement of lever 44. The lever 46, through a shoulder 41, acts to move slide l and slide-member I! to the left a to initial position. In its leftward movement slide l5 contacts and shifts rod 43 which, in turn, moves latch 41 back to original non-locking position. Lateral extension 40' on rod 40 Y may then slip into place to hold latch 4 I. Spring 45 acts on lever 46 to return lever 48, pinion 29, lever 44 and rod 40 back from the position shown in Fig. 6 to the initial position 01' Fig. 1. When latch 4| is released from wheel II, the wheel is free to turn the remainder of the distance from the fifteenth projection to the first. This turning is effected when follower-roller 39 rides down from cam 38 by the action of spring 45 and also by the unbalanclng effect of cam 38 on wheel ll, Further movement is prevented by detent l3 contacting a projection l2, detent I! being already in the proper position for such engagement. Other suitable means may be utilized to effect the final movement of wheel I l and drum l.

The motor shaft M rotates continuously and the totalizer drum rotates whenever the pawl i3 is brought out of engagement with one of the radial projections l2. When thepawl I3 is moved to release position by the shaft 23, the shaft M is simultaneously clutched with the drum shaft l by the engagement of the clutch 21 through the movement of rod 28. If the pawl I: again falls in, the clutch 21 is simultaneously disengaged, so that the shaft M no longer can rotate the totalizer drum I through the chain 28. The drum 1 is prevented from turning backward by the stop 49 on the catch 48, this stop falling in automatically to block the projections II that are present (see Fig. 2). During the return of the parts into the initial position, in-

stead of the drum I being stopped by the pawl l3, the latch 4i serves to stop it by catching on the projections l2 when the rod 40 is actuated by the cam 38. In addition, the catch 48 is provided with the stop 50, against which will rest a projection I! as soon as the projection I2 is held by the latch 4i. Thus any return rotation of the totalizer drum l is prevented in all positions.

I claim:

1. In a multiple totalizer calculating machine of the type in which the totalizers are distributed on the circumference of a drum, a continuously operating power shaft, a drum and drum shaft, disengageable clutch means operably connecting said shafts, a slidable step rail to be shifted longitudinally on said machine, a step control bar slidable on said machine, driving means operably connecting said drum shaft and said control bar, a ratchet disc operably connected with said drum shaft, circumferentially spaced stops on said disc, a pawl for engaging said stops, control means for actuating said pawl to disengage the same and for simultaneously engaging said clutch, and means actuated by said step rail and controlled by said step bar for controlling said control means to effect movement of said drum shaft proportionate to movement of said step rail.

2. In a mu siple totalizer calculating machine of the type in which the totalizers are distributed on the circumference of a drum, a continuously operating power shaft, a drum and drum shaft, disengageable clutch means operably connecting said shafts, a slidable step rail to be shifted longitudinally on said machine, a control bar slidable on said machine and having steps formed thereon, driving means operably connecting said drum shaft and said control bar, whereby said bar is movable proportionately to the turning of said drum shaft, a locking wheel having projections radially spaced. in conformity with the angular spacing of the totalizers on the drum,

an operating shaft, a pawl on said operating shaft adapted to engage and disengage said projections, clutch engaging means operatively con- .nected to said operating shaft, a detent on said operating shaft, and means operatively connected with said step rail, control bar, and detent whereby movement of said step rail releases said detent, to disengage said locking wheel, and engage said clutch thereby permitting momentary movement of said drum shaft and control bar.

3. In a multiple totalizer calculating machine, a totalizer drum having totalizers distributed on the circumference of a drum, a drum shaft, a continuously operating power shaft, disengageable clutch means operably connecting said shafts, a step rail to be shifted longitudinally, a slidable step control bar, driving means between said drum shaft and said control bar, a ratchet disc operably connected with said drum shaft, projections on said disc radially spaced in conformity with the angular spacing of the totalizers on said drum, a locking pawl for engaging said projections, control means for influencing said pawl to cause disengagement of the same from said projections and for simultaneously causing engagement of said clutch, means operatively connected to said step rail, control bar, and control means whereby said control means are responsive to movement of said step rail to permit movement of said locking disc and drum, means for restoring said driving means and control bar to their initial position, and means for disengaging said driving means from said drum shaft whereby said driving means and control bar may be restored to initial position.

4. In a multiple totalizer calculating machine, a totalizer drum having totalizers distributed on the circumference of the drum, a drum shaft, a continuously operating power shaft, disengageable clutch means operably connecting said shafts, a step rail to be shifted longitudinally, a slidable step control bar, driving means between said drum shaft and said control bar, a ratchet disc operably connected with said drum shaft, projections on said disc radially spaced in conformity with the angular spacing of the totalizers on said drum, a locking pawl for engaging said projections, control means for actuating said pawl to disengage the same from said projections and for simultaneously engaging said clutch, means operatively connected to said step rail, control bar, and control means whereby said control means are actuated by movement of said step rail to permit movement of said locking disc and drum, means for restoring said driving means and control bar to initial position and auxiliary locking means rendered effective by 'said disc in a predetermined position thereof for said control bar, a locking wheel operably connected with said drum shaft, circumierentially spaced stepson said disc, one for each totalizer, a pawl for engaging said stops, 9. control means for actuating said pawl to disengage the same and for simultaneously engaging said clutch comprising an operating rod on which said pawl is mounted, and a link connection between said clutch and said rod, spring means urging said rod to a position wherein said clutch is engaged and said pawl is not, means for maintaining said rod in an inoperative position with said clutch disengaged and said pawl engaged comprisinga longitudinal member slidable transversely of itself in response to movement of said step rail and contacting at one end'a member on said operating rod and at the other end one oi a operating rod to disengage said pawl, engage said clutch and shiit said drum and said step bar whereby said longitudinal member will again be contacted by a step on said step bar and shiit said operating rod to an inoperative position and stop said drum, the movement or said drum being thereby proportional to the movement of said step rail and the transverse movement of said longitudinal member.

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