US3026026A - Totalizer control mechanism for adding - Google Patents

Totalizer control mechanism for adding Download PDF

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US3026026A
US3026026A US3026026DA US3026026A US 3026026 A US3026026 A US 3026026A US 3026026D A US3026026D A US 3026026DA US 3026026 A US3026026 A US 3026026A
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totalizer
coupling
follower
during
lever
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    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06CDIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C7/00Input mechanisms
    • G06C7/10Transfer mechanisms, e.g. transfer of a figure from a ten-key keyboard into the pin carriage

Description

March 1962 o. 'HABERKORN TOTALIZER CONTROL MECHANISM FOR ADDING AND CALCULATING MACHINES Filed Aug. 26, 1955 4 Sheets-Sheet 1 FIG. 1
/N VE N 7'02 March 20, 1962 Filed Aug. 26, 1955 O. HABERKORN TOTALIZER CONTROL MECHANISM FOR ADDING AND CALCULATING MACHINES 4 Sheets-Sheet 2 lNVENTOR a /1M March 20, 1962 o. HABERKORN 3,026,026
- TOTALIZER CONTROL MECHANISM FOR ADDING AND CALCULATING MACHINES Filed Aug. 26, 1955 4 Sheets-Sheet :s
IN VENTOR March 20, 1962 o. HABERKORN 3,026,026 TOTALIZER CONTROL MECHANISM FOR ADDING AND CALCULATING MACHINES Filed Aug. 26, 1955 4Sheecs-Sheet 4 INVENTOR United States Patent 3,026,026 TOTALIZER CONTROL MECHANISM FOR ADDING AND CALCULATING MACHINES Otto Haberkorn, Gerstetten, Wurttemberg, Germany, as-
signor to Walther Biiromaschinen Gesellschaft m.b.l-I., Gerstetten, Wnrttemberg, Germany, a firm Filed Aug. 26, 1955, er. No. 530,707 Claims priority, application Germany Sept. 10, 1954 Claims. (Cl. 23560) The invention relates to a totalizer engaging and disengaging mechanism for adding and calculating machines having cam discs secured on a rotating drive shaft, and differential members being advanced by springs during the first half-revolution, and returned by a pick up bar during the second half revolution of said shaft, said differential members being engaged by the totalizer during definite periods of time according to the set function of the machine.
The engagement of the totalizer occurs upon adding and subtracting during the second half-revolution, upon totalizing during the first half-revolution and upon subtotalizing during both half-revolutions. Upon non-add operation no engagement takes place.
The cam discs which are used in the totalizer engaging and disengaging mechanisms moved in one direction enabling greater calculating velocity actuate follower levers which are connected with the linkage for engagement and disengagement of the totalizer.
The adjustment of the totalizer engaging and disengaging mechanism to the different functions of the machine, in known machines if this kind, is performed in such a way that a single follower lever is associated with the the cams of the different functions of the machine and this follower lever is separately adjusted to the different cams. Further it is known to associate a particular follower member with each cam and to selectively couple these follower members with the linkage for engaging the totalizer.
In order to simplify the structure and to increase the reliability of such a control-mechanism, according to the invention, two cam discs one for adding or subtracting and the other for totalizing are provided for, while for substotalizing the cam disc for totalizing is active during the first half-revolution and during the second half-revolution the totalizer is maintained in its engaging position by a supporting member which is released by a projection of the drive shaft at the end of this second half-revolution.
In order to practically perform this idea the linkage for engaging the totalizer will be selectively coupled with follower members oscillated by the concerned cam disc by shifting of a coupling pin within a slot of the linkage, therebyadjusting the coupling-pin opposite to coupling lugs of the follower members of the cams which are located one after the other in the direction of the slot. Particularly, the coupling pin, in its position of rest, is adjusted opposite to the coupling lug for adding or subtracting, respectively, and is adjusted into a second and third shifted position opposite another coupling lug of another follower member for totalizing thereby releasing, in the third shifted position, the supporting lever which is maintained in the first and second shifted position in its inactive position.
The supporting lever is pivoted on the linkage for engaging the totalizer and cooperates by means of its supporting arm with a fixed stop and by means of an arm with said coupling pin, in such a way, that the latter maintains the supporting lever during the two first shifted positions in an inactive position against the action of a spring by means of its blocking arm, while it releases the supporting lever in the third shifting position thereby enice ebling its supporting arm to be moved over the fixed stop at the end of the engaging movement of the totalizer.
Further features of the invention result from the following description of an embodiment of the invention applied to a ten-key-adding-machine.
In the accompanying drawing:
FIG. 1 is a side elevation of the main-mechanisms of the adding machine,
FIG. 2 is a top view of the drive and coupling mechanism for the engaging linkage,
FIG. 3 is a side elevation of the cam disc for adding or subtracting, together with its follower lever,
FIG. 4 is a side elevation of the coupling part of the engaging linkage together with the supporting lever,
FIG. 5 is a side elevation of the cam disc for totalizing with its follower lever,
FIG. 6 is a side elevation of the releasing mechanism for the supporting lever in the active position of that lever,
FIG. 7 is a corresponding view in the released position of the supporting lever.
In the ten-key machine to which the totalizer engaging and disengaging mechanism is to be applied the amount keys 1 (FIG. 1) act by means of their stem ends in a known manner on the set-pins 3 located in a set-pins 3 located in a set-pin slide 2 being slidable in a transverse direction. The lower ends 4 of the set-pins will be brought into the way of projections 5 of differential membets 6 which try to move them, on the action of springs 7, till they abut on the adjusted set pins 3, 4 as soon as they are released in the direction of the arrow 9 by a trans versely arranged pick up or restoring bar 8.
The differential members 6 are connected with a rack 11 which participates in the movement of the differential members and cooperate with intermediate wheels 12, 13 of the totalizer 14.
The totalizer is selectively supported by means of two laterally projecting swinging bolts 15, 16, respectively,
on a rail 17 and may be swung about the supporting swinging bolt by a pull hook 18 so that either the intermediate wheels 12 or the intermediate wheels 13 engage with the diflerential racks 11.
In the first case corresponding to the position of rest of the rail 17 where, as shown in FIGURE 1, the swinging bolt 15 serves as support, the totalizer is adjusted for adding, whilst in the second case the swinging bolt 16 supports the totalizer after shifting the rail 17 into the left end position by means of the subtracting key 19.
The pick-up bar 8 moves at the beginning of the operation of the machine towards the right in the direction of the arrow 9 and releases the differential members 6 enabling them to be adjusted to the value of the adjusted set pins 4. Upon this adjustment movement the intermediate wheels remain out of engagement with the differential racks 11. Prior to the restoring of the pick up bar 8 to the left during the second part of the machine cycle the totalizer will be brought into mesh with the differential racks 11 by means of the intermediate wheels 12 or 13 by moving down the pull books 18 in accordance with the subtraction key '19 being depressed or not, so that upon returning of the differential members 6 by the pick up bar 8 the amount being set in the differential members 6 will be transmitted to the totalizer.
Upon totalizing the downward-movement of the pull hooks 18 takes place at the beginning of the machine operation whereby the rail 17 remains in its position of rest so that upon the following movement towards the right of the pickup bar 8 the differential racks 11 will rotate the wheels 21 by the action of the springs 7 until they are stopped in their zero-position, and the amount being in the totalizer wheels will be transmitted to the 3 differential members 6, 11. The movement of the differential racks '11 is transmitted by means of intermediate wheels 22 to type-segments 23, which are mounted on swing-able levers 24, being released at a suitable moment in order that they swing to the right by the action of springs 25 striking the adjusted types to the platen.
Upon subtotalizing the totalizer 14 will be brought into engagement with the differential racks 11 at the beginning of the machine-operation in the same manner as upon totalizing, however the totalizer must remain engaged during the second part of the machine operation so that upon returning the pick-up bar towards the left, the amount transmitted to the differential racks 11 will be restored into the totalizer wheels 21.
Now, in order to correspondingly move the pull hooks 18 up and down the following control mechanism is provided for. On the main drive shaft 26 two cam discs 27 and 28 (FIG. 2) are secured side by side. Cam disc 27 is destined for adding and subtracting and cooperates with a follower lever '29, shown in FIG. 3 and pivoted on a shaft 31 rotatable in the frame of the machine. A follower lever 32 shown in FIG. 5 cooperates with the cam disc 28 destined for totalizing being also revolubly mounted on shaft 31. Both levers will be held in contact with their cam discs by springs 33 (FIG. 1).
The left hand arms of the two levers are located within the intermediate space between two coupling arms 34 (FIGS. 2 and 4) secured to the shaft 31, which are provided each with a longitudinal slot 35, within which a coupling pin 36 can be shifted which thereby can take up the four shifted positions represented in FIGS. 3 to 5. The coupling pin 36 is fixed to a bar 37 (FIGS. 1 and 2) which is linked to the lower end of a twoarmed lever 38 the upper end of which is pivotally connected to a differ-. ential rail 39 of the setting mechanism for the functions of the machine.
The differential rail 39 is located below a key-row, the keys of which are designated by (subtracting), (nonadding), (subtotalizing), and (totalizing). The shafts of the three left hand keys cooperate with oblique '7 surfaces 41 having different slope, in such a way, that on depressing one of the keys the coupling pin 36 is adjusted by means of the two armed lever 38 and the bar 37 from its right hand position destined for adding into one of the other three shifting positions following towards the left.
In'the position of rest (FIG. 3) the coupling pin 36 is located above a coupling lu'g 42, of the follower lever 29. in the second and third shifted positions following to the left it is adjusted above a broader coupling lug 43 (FIG. of the follower lever 32 for totalizing or subtotalizing, respectively.
In the fourth shifted position lying farthest to the left it is placed out of the way of the coupling faces 42 and 43.
Two arms 44 (FIGS. 1 and 2) are fixed to the shaft 31, which are linked by means of bolts 45 to the lower ends of the pull hooks 18. When the swinging movethe first half revolution and is found in its position of rest during the second half revolution.
The coupling lugs 42 and 43 are moved up and down during each machine operation. If the coupling pin 36 is adjusted above one of the coupling lugs, the totalizer will be correspondingly moved up and down byrneans of the coupling arms 34 and the other leverage in the above mentioned way during adding and subtracting (first shifting position, FIG. 3) and during totalizing (second shifting position, FIG. 5).
Upon subtotalizing (third shifted position, FIG. 5) the totalizer likewise is engaged during the first half-revolution of the drive shaft 31 by the movement of the coupling lug 43, however, at the end of the first half-revolution the totalizer is not disengaged but remains in its engaging position by means of a supporting lever 46 in the following manner (FIGS. :1, 2 and 4.)
The supporting lever 46 is pivoted about a pin 47 between the two coupling arms 34 and is also movable between the two follower levers 29 and 32. It has a hooklike blocking-arm 48 and a supporting arm 49 directed downwardly, which is provided with a recess 51 and is actuated by a spring 52. The recess cooperates with a lug in the form of a shaft 53 (FIGS. 1, 6, 7) on which a two-armed lever 54 is pivoted Which provides at its upper end a pin 55 cooperating with the supporting arm 49. Said lever 54 being connected at itslower 'end with I a follower-lever 58 pivoted about a pin 57 and cooperatlever 46 can rotate about its pivots 47 in a clockwise ment of one of the follower levers 29, 32 is transmitted 7 J wise revolution at each machine operation under the control of a one-revolution clutch. It will be seen from the shape and the arrangement of thec'am discs 27 and 28,
that-the cam. disc 27 for adding or subtracting, respectively, maintains its follower lever 29- during the first half revolution in its position of rest, and, then, .during the second half-revolution, swings it and, at the end of the second half-revolution, returns it into the position of rest. 'The cam disc 28actuates'in an inverse manner on its 1 follower lever 32 upon totalizing. It is swung, during direction upon upward movement of the coupling arms 34 which takes place under the action of the spring 52,
thereby placing its recess 51 on the shaft 53 in its upper- 7 most position, as shown in FIG. 6.
Thereby, during the second half-revolution. of the driv shaft 26, the coupling arms 34 are'maintained in their upper position and the totalizer in its engaging position. At the end of the operation of the machine the tappet 59 engages the roll of the follower lever 58 and swings the latter and thereby by means of the link 56 also the two-armed lever 54 in a clockwise direction, whereby the pin 55 strikes against the supporting arm 46, withdrawing it with its recess from the shaft 53 against the'action of the spring 52, in such a way, that the coupling arms 34 return under the action of their spring into their lower position of rest and the totalizer returns to its' (FIG. 1) the movement of which will be transmitted to the associated sign type wheel 23 by means of an intermediate wheel 22 in such a way, that the function sign corresponding to the adjusted'function will'be printed at the side of the amount.
The described arrangement for a ten-key adding machine may be used without great modification for a full key adding or calculating machine. The totalizer coutrol rnechanism may be accordingly used also with adding and calculating machines inwhichthe periods for What I claim is:
1. In a totalizer control mechanism for adding and calculating machines, -a totalizer, spring actuated differential members cooperating therewith, a pick up bar cooperating with said differential members, a drive mechanism comprising a drive shaft performing one revolution on each cycle of operation of the machine causing a reciprocation of said pick up bar, freeing the differential members during the first half of the revolution for their forward movement and returning said displaced differential members during the second half to their normal position, means for engaging and disengaging said totalizer with said differential members, two cam discs secured to said drive shaft for controlling said totalizer engagement, one for adding, the other for totalizing and subtotalizing, two follower levers each cooperating with one of said cam discs, means for selectively connecting said follower levers with said totalizer engaging and disengaging means, said cam discs being adapted to hold said totalizer in engagement: on adding during said return movement and on totalizing during said forward movement, a supporting member adapted to lock said totalizer in its engaged position during the return movement of said differential members, means for maintaining said supporting member in inoperative position during totalizing, adding, and subtracting cycles, means for rendering said supporting members operative during subtotaling cycles, and releasing means actuated by said drive shaft at the end of the return movement of said differential members for releasing said supporting memher.
2. In a totalizer control mechanism according to claim 1, said means for selectively connecting said follower levers with said totalizer engaging means comprising two spaced coupling arms connected with said totalizer engaging and disengaging means and having a longitudinal slot, a coupling pin shiftable within said slot, a shiftable bar mounting said coupling pin, coupling lugs on said follower levers cooperating with said coupling pin, a rocking shaft having said coupling arms fixed thereto and rotatably mounting said two follower levers, said coupling pin shifting bar being located between said two follower levers and said follower levers being located between said two coupling arms.
3. In a totalizer control mechanism according to claim 1, said means for selectively connecting said follower levers with said totalizer comprising coupling arms connected with said totalizer having a longitudinal slot function setting means, a coupling pin shiftable within said slot, means for adjusting said pin in different shifted positions along said slot, each coordinated to one of the function setting means of the machine, coupling lugs operatively connected with said cam discs and cooperating with said coupling pin, whereby the coupling pin connects the totalizer with the cam disc according to its shifted position, said coupling pin being operatively connected in its first position and position of rest with the adding-subtracting cam disc, in its second and third position with the totalizing cam disc, connecting means between said coupling pin and said supporting member whereby the latter in the first and second shifted position of the coupling pin is maintained in its ineffective condition and in the third shifted position in its effective condition for enabling subtotaling.
4. In a totalizer control mechanism according to claim 1, said means for selectively connecting said follower levers with said totalizer means comprising coupling arms connected with said totalizer engaging and disengaging means having a longitudinal slot function setting means, a coupling pin shiftable within said slot, means for adjusting said coupling pin in different shifted positions along said slot each coordinated to one of the function setting means of the machine, coupling lugs on said follower cooperating With said coupling pin, said means for maintaining such cooperation comprising blocking arm cooperating with said coupling pin adapted to be blocked by the pin being in its first and second shifting position in order to maintain the supporting member in its ineffective position and release it in the following shifted position for subtotalizing enabling it to move into its effective position.
5. In a totalizer control mechanism according to claim 1, said means for releasing said supporting member comprising a tappet secured on said drive shaft, a follower lever cooperating with said tappet, a pin operatively connected with said follower lever and cooperating with said supporting member, whereby the supporting member is moved in its ineffective position by the tappet at the end of the second half-revolution of the drive-shaft.
References Cited in the file of this patent UNITED STATES PATENTS 1,325,195 Goldberg Dec. 16, 1919 1,778,506 Pasinski Oct. 14, 1930 2,071,880 Kammel Feb. 23, 1937 2,181,975 Lee Dec. 5, 1939 2,648,497 Boyden Aug. 11, 1953 2,681,767 Hopkins et al June 22, 1954 2,822,976 Pitman Feb. 11, 1958
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321133A (en) * 1967-05-23 Makoto okuda calculating machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1325195A (en) * 1919-12-16 Gash-register
US1778506A (en) * 1930-10-14 pasinski
US2071880A (en) * 1937-02-23 Printing adding machine
US2181975A (en) * 1935-10-14 1939-12-05 Ncr Co Accounting machine
US2648497A (en) * 1953-08-11 Accumulator drive control
US2681767A (en) * 1950-10-12 1954-06-22 Friden Calculating Machine Co Calculating machine
US2822976A (en) * 1958-02-11 Register engaging mechanism

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1325195A (en) * 1919-12-16 Gash-register
US1778506A (en) * 1930-10-14 pasinski
US2071880A (en) * 1937-02-23 Printing adding machine
US2648497A (en) * 1953-08-11 Accumulator drive control
US2822976A (en) * 1958-02-11 Register engaging mechanism
US2181975A (en) * 1935-10-14 1939-12-05 Ncr Co Accounting machine
US2681767A (en) * 1950-10-12 1954-06-22 Friden Calculating Machine Co Calculating machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321133A (en) * 1967-05-23 Makoto okuda calculating machine

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