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US2070785A
US2070785A US2070785DA US2070785A US 2070785 A US2070785 A US 2070785A US 2070785D A US2070785D A US 2070785DA US 2070785 A US2070785 A US 2070785A
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total
accumulator
cam
arm
shaft
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    • 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06CDIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
    • G06C15/00Computing mechanisms; Actuating devices therefor
    • G06C15/04Adding or subtracting devices
    • G06C15/06Adding or subtracting devices having balance totalising; Obtaining sub-total

Description

Feb. 16,1937. P. CROSMAN REGI S TER Filed March 9, 1935 6 Sheets-Sheet 1 AW @V t @OGOOOOOO 3w @OOOOQQGG W @OOOOOOOO @GOGOOQOG a v\\ @OOOOGOOG OQOOOQ @OGOOOOOO @@GOGOOOGO.
INVENTOR Lori/7 .C ras zza l M :ATTORNEY Feb. 16, 1937. P .CRO$MAN 2,070,785
REGISTER Filed March 9, 1935 6 Sheets-Sheet 2 INVENTOR Feb. 16,1937. L. P. CROSMAN REG I S TER Filed March 9, 1935 6 Sheets-Sheet 5 0 www www &
w @w NW mww Feb. 16, 1937. L. P. CROSMAN 2,070,785
REGISTER Filed March 9, 1955 6 Sheets-Sheet 4 INVENTOR WgQTTORNEY Feb. 1937. C OS AN 2,070,785 REGISTER Filed March 9, 1955 s Sheets-Sheet s Feb. 16, 1937. CROSMAN 2,070,785
REGISTER Filed March 9, 1935 6 Sheets-Sheet 6 INVENTOR Lomzzg Cr-os parz L L/VZh ATTORNEY Patented Feb. 16, 1937 UNITED STATES REGISTER Luring Pickering Crosman, Maplewood, N.
signor to Gardner Company, Orange, N. J., a corporation of Dela-ware Application March 9,
2 Claims.
The invention has relation to means for transferring a total accumulated in oneaccumulator into another or grand total accumulator, and it consists in the novel construction and combination of parts as set forth in the appended claims.
The invention is shown as applied to a listing calculator of the well known Gardner construction, illustrated in U. S. July 12, 1932 to Clyde Gardner, deceased; as modified by the disclosure of U. S. Patent 1,915,296, issued June 27, 1933 to Loring P. Crosman, and by the disclosure of co-pending application Serial No. 10,270 filed by Loring P. Crosman of even date herewith.
In the accompanying drawings illustrating the invention:
Fig. 1 is a plan view of a machine embodying the invention.
Fig. 2 is a vertical section through the keyboard, accumulator and printing mechanism.
Fig. 3 is a right side elevation of the accumulator control mechanism and associated parts.
Fig. 4 is a similar view of the accumulator control mechanism in position assumed upon setting of the total transfer lever.
Fig. 5 is a similar view, showing the parts in position assumed with the transfer total lever set and the total key depressed.
Fig. 6 is a similar view with the parts in position assumed during a transfer total operation.
Fig. '7 is a left side elevation of the machine With the casing removed and parts broken away.
Fig. 8 is a right side elevation of the machine with the casing broken away.
Fig. 9 is a detail right side elevation of parts omitted from Fig. 3.
In the machine illustrated, amounts set up on the digit keyboard 2 I 5 (Figs. 1 and 2) are accumulated in one or in bothaccumulators- 413, either additively by engagement of an accumulator during the upward stroke or subtractively by engagement thereof during the downward stroke of reciprocatory actuating segments 6 I 0. The segments are reciprocated by movement of a rock shaft 30I, preferably driven by electric motor I00, said rock shaft having a cam 3I8, adapted to move a rocking frame BIG, and thereby cooperating with the springs of the segments to effect movement thereof. The extent of movement of each seg-.
ment is limited by engagement of a stop bar 6I5 carried by the segment, with the lower end of a depressed key 2I5, whereby this extent of movement will'correspond to the value of such depressed key. Type bars SII are connected with h egments 6I0, and are raised thereby to Patent 1,867,002, issued 1935, Serial No. 10,271
bring the appropriate type to the printing line. Before the return of the adjusted segments by the' frame GIG, spring type hammers H5 will be released by triggers 70 I to print the item on a record sheet.
Plus and non-add setting The accumulators 413 are set to give the desired registration by means of two cam plates MS, "I (Fig. 3) pivoted in the frame at 420 and 422, respectively, these plates cooperating with cams carried on the shafts 403 of the accumulators. From the position illustrated in Fig. 3, the cam plates 4I9, 42I are rocked toward each other by means of a rocker device 325, (Figs. 4and 6) connected with the cam plates by members 322, 32I, and operated by cam arms 320, 3 I 6, fixed upon the rock shaft 30 I. Rocker device 325, as set for normal operation, provides for movement of plates 4| 9, 42I toward each other, as soon as the machine is put in operation, and before the movement of segments 6I0. At the beginning of the return movement of shaft 30 I, rocker 325 will be operated in a reverse direction, to return the cam plates 4| 9, 42I to the position illustrated in Fig. 3 before the return movement of segments 6I0 is begun. Each of the cam plates 4I9, 42i is' provided with two .cam faces, 452, 454, these cam faces being offset from each other transversely, and lying in different circumferential angular positions. In 30 the position illustrated in Fig.. 3, the cam faces 452 of the plates are opposite the shafts 403, Whereas, upon movement of the plates by rocker 325, the cam faces 454 thereof will be brought opposite the shafts 403. 3
Each shaft 403 is provided with a cam 453, lying in the plane of the related cam face 452, and a cam 455, lying in the plane of the related cam face 454. The shafts 403. may be held in either of three rotated positions, whereby the, high 40 points of cams 453 or 455, or the low points of both cams may be brought opposite the cam faces of the plates 4I9, 42I.
The shafts 403 are urged by spring means (not shown) away from the, segments IiI0, suitable guides in the frame of the machine being engaged by said shafts. Thus, the shafts 403 will hold the accumulators 413 out of mesh with the segments 6I0 unless a cam face 452 or 454 is engaged by a cam 453 or 455, in which case the accumulator will be thrown into mesh with the segments.
It will be seen that the low point position of the cams 452, 454 provide a non-add adjustment for the accumlator 413. To set the accumulators for addition, the cams 453 are rotatedto active position in which the accumulatorsw-ill stand in engagement with the segments 6|!) when the machine is at rest; will be allowed to drop out of mesh with the segments as soon as the ma chine is put, in operation and will be reengaged with the segments at the beginning of the return stroke thereof. It'may be noted that the upper accumulator is set for addition in Fig. 3, the lower accumulator being setfor non-add.
.These settings of the accumulators are controlled by a lever l (Figs. 1 and '7). which, as shown, is set to a position indicated by the letter A on a'display plate shown in Fig. 1. This designation shows that this A or upper accumulator is. set for addition and that the lower or B accumulator is left inactive, or in non-add position, during operation of the machine by the normal operation key H4.
I Total printing A total is taken by releasing the differential stop bars H5 and allowing them to rotate the accumulators subtractively until suitable pins on the accumulatorwheels contact with 0 stop members. This will set'the total in the type 1 bars, and the hammers will be tripped to print normal position, the accumulator wheels being I the total. The bars 6l5 are then reengaged with the oscillating frame and during the return stroke of said frame are moved rearwardly to disengaged from the racks before the return stroke is made, whereby the accumulator which has been totalized will stand at 0.
The machine is set for reverse or subtractive operation by contact of the total key lever 'with a pin 352 (Fig. 4) on rocker control plate 326,
the total key thus holding the plate out of the path of clockwise rotation of the forwardpam follower, so that the accumulators will not be disengaged at the beginning of the operation, by i the action of cam arm"'32ll. On the return stroke of the parts, the forward ca'm follower, coacting with cam arm 320, will disengage the active accumulator from the segments. The described setting of plate 326 also disables the rear cam follower. At the end of the cycle of operation a pin 350 (Fig. 3) will contact with arm 322 and restore rocker 325. Depression of' the total trip the column latches 2 M (Fig. 2), through pin 263 and rocker 221' (Fig. 3), but will also trip a latch 620, through operation of a control arm 62! pivotally connected to said latch. Latch 620 normally engages a lug on total segment 618, preventing movement of said segment ,under the influence of the total spring 68! Upon tripping of the latch, segment 6| 8 will operate a shaft having a spirally arranged row of pins 65l (Fig.
2), acting to trip the latching dogs Bl1 successively from right to left of the machine, the tripping of said dogs releasing the segments and also releasing stop members 6l3, so that they will fall into the path of the 0 stops 451 on the accumulator wheels.
When this zeroizing operation has progressed to the left hand side of the machine, a rearwardly extending arm of the total segment 6I8 will contact with a projection of a rod I30 (Fig. 3) connected at its other end to a trigger I31, adapted to release latch I I2, and thereby engage a clutch connecting rock shaft 3! with motor I00. The
key 218 will not only of the segment levers. The hammers will now be tripped, and upon rearward movement of frame GIG the-segments and total stopswill be restored to normal position.
The total key is locked in depressed position by latch 223, and is released near the end of the cycle. of motor operation by engagement of a finger of rock arm 321 (Fig. 3), driven by parts 324 and 3I6 (Fig. 6) above a click pawl 222 of latch striker 220, the, parts of the total setting mechanism being then restored to, normal position.
The mechanisms above set forth are all described in detail in the patents and application hereinbefore referred to.
Transfer totals Provision is made whereby the setting of a T transfer total lever 6| (Figs. 1- and-'7) will set mechanism into position to be operated by the total key 218 whereby the lower or B accumulator will be thrown into add position during the 'total printing operation, so that the total cleared from accumulator "A and printed on the record sheet will be accumulated as a grand total in B accumulator. v
Lever BI is fulcrumed on a shaft 62 and at its lower end contacts with a pin carried on a crank arm 63 of said shaft, setting of the lever by counter-clockwise movement from the position shown in Fig. '7 serving to rock the shaft 62, against the tension of a spring 64. Shaft 62 is held in rocked position by engagement of a pin of lever 6| with a cam slot 69 of an interlock plate 65, pivoted at 66 in the framing, and provided with a notched portion adapted to register with a pin 61 fixed in the control lever I. If control lever -l is not located-in A" position, pin 61 will not be opposite the notch of plate 65, and said plate will prevent the setting of transfer total lever 6|. The cam walls 68 of the notch of plate also serve as a means for releasing lever (H from 'the lockingv action of cam slot 69. Thus. when it is desired to reset the control lever, the transfer total lever is automatically restored to inactive position.
' In addition to the crank arm 63, shaft 62 is provided with .two arms 10 and 1| (Fig. 3) on the right hand side of the machine. Rocking of shaft 62 by lever GI will move the arm 10 from the position shown in Fig. 3 into that illustrated in Fig. 4, in which position, a dog 12, carried by said arm will be positioned beneath a pin 13 in the total key lever.
With lever 6| set in active position, the depression of total key 218 will,'through engagement of pin 13 with dog 12, rock arm 10, shaft 62 and arm 1| into the position illustrated in Fig. 5. This movement will serve, through a link 14 to raise a hook 15, pivoted to a cam plate 16, into latching engagement with a pin 11 of the cam plate 9, so that the plates 16 and H9 are rigidly connected for operation in unison. Dog 12,.which is connected with the arm 10 by a pivot and alsoby a spring 18, serves to hold the hook 15 in engagement with pin 11 during the subse- 1 and that before the return movement of this frame, with the segments 6I0, plate 4I9 will berocked upwardly, into the position shown in Fig. 6. When hook 15 is engaged with pin 11, this upward movement of plate 4I9 will raise the cam plate 16 therewith, bringing a cam portion 19 thereof into engagement with a collar 80, fixed upon the shaft 403 of the lower accumulator, and forcing said accumulator into meshing engagement with the segments. The return of the segments to normal position will, therefore, add the amount taken from the upper accumulator, andset in the type bars 6| I, into the lower accumulator. The return movement of cam plate 4I9, near the end of the cycle of operation, and the ,release and restoration of total key 218, will allow plate 16 to return to the position illustrated in Fig. 4, under the influence of the springs 64 and 18.
1 Negative totals As set forth in detail in Patent 1,915,296, hereinbefore referred to, amounts accumulated in the higher order accumulator wheels, located to the left of the keyboard are transferred to the printing devices when a total is taken. If the total is negative, the complemental registration in the accumulator will include a 9 in the above-mentioned left hand wheel, and movement of the related type bar from 8 to 9 printing position is utilized to set the true negative total devices in operative position.
The method of converting the complement of a negative total, set in the type bars, to the true negative total is as follows: 1
A set of stops I43 (Fig. 2), yieldably engaging the stop bars 6I5 are locked in position as ad- J'usted thereby in accordance with the complemental registration and the segments 6I0 are restored idly to normal position. The segments are now again released and will be stopped by the stops I43, the accumulator'being meshed during this subtractive stroke of the segments, whereby the complement is subtracted from zero, giving a registration of the true negative total. The segments are again restored idly to normal position by a cycle of operation of frame 6I6, and the stops I43 are released, so that a second zeroizing operation will now transfer the true total to the type bars. The printing of the total, which normally occurs at the end of the first total setting operation has in this case been delayed, and will occur after the true total is set.
In moving from 8 to 9 printing position, the extreme left hand type bar releases setting shaft I46 (Figs. 3 and 8) which will thereupon be rocked counter-clockwise by a suitable spring. Rocking of shaft I46 suspends the operation of the printing and normalizing devices in known manner.
The release of the total key from its latch 223 (Fig. 3) is prevented by an arm I50 connected by link I5I with arm I52 of setting shaft I46, arm I50 being held in the rocked position of the shaft in engagement with pawl 222 mounted on the latch striker 220, so that said pawl may not be operated to actuate the'striker so long as setting shaft I46 remains in rocked position. Total key 218 thus remaining latched in operative position, the subsequent operations will all be of a subtractive nature, and the column latches 2I4 will remain inactive.
The first operation of the totaling mechanism under the influence of spring 6,8I has served to engage the motor clutch, for the purpose of restoring the segments, etc., and in order that a second cycle of the motor drive mechanism may be secured, in which the subtractive operation of the accumulator will occur, the clutch will be held in operative position as follows:
A latch arm I51 (Fig. 8) will be carried downward by shaft I46 out of engagement with a latching pawl I58 mounted on a plate I59, pawl I58 being held upward, to permit the disengagement, by a second latching pawl I10. Plate I59 being released from the latch, will be drawn rear- .wardly by spring pressed member I60 (Fig. 3) and a lug of plate I59 will engage the hook end of link I30 (now in its lower position) connected to the trigger I3I, holding this trigger out of latching engagement with the clutch lever I06.
In order to lock the segment stop members (43 in the positions assumed during the preliminary total taking, the plate I59 is provided with a pivoted extension I63 (Figs. 3 and 8) which, in the rearward movement of plate I59 is held under tension against the pin I64 mounted on one end of an intermediately fulcrumed lever I65.
The consequent relative movement of plate I59 and extension I63 will release latching pawl I53 from the restraint of the second latching pawl I10, the former pawl falling upon latch arm I51. The forward arm of lever I65 operates a locking bail I66, engaging serrations lever being normally operated by a double faced cam I61 secured to arm 3I6 of operating shaft 30I. As arm 3I6 moves forward rocking bail I66 is released, by the action of cam I61, while in the rearward movement of arm 3I6 the cooperating roller of lever I65 will ride the upper face of cam I61, whereby the locking ball is brought into contact with the stops I43. This will be the operation of the parts during the first cycle of mo tor operation, which restores the segments. As the rear end of lever I55 is lifted by cam I61, however, in the return movement of the parts. pin I64 will be lifted free of extension I63, and said extension will immediatiely move under the pin. holding locking bail I66 in engaging position. where it will remain during the subtractive stroke of the second cycle of motor operation, that is to say, while the segments move the wheels subtractively from 0 registering position to the extent allowed by the stops I43. At the end of this stroke a pin I68 in arm 3I6 will engage a seat I69 in extension its extension I63 forwardly, in which position the parts will be held by latching pawl I58, moving into engagement with the shoulder of latch arm I51.
The true negative total being now registered in the accumulator, a second totalizing operation, occurring on the final motor operation cycle and accomplished by the means hereinbefore described, will result in the printing of the true negative total. The total latch is controlled to initiate this second totaling operation as follows:
It has been seen that, because of the negative condition of the accumulator, the total key is held in depressed position, which, ordinarily, would result in the tripping of the total latch 620 1 at the end of the cycle of motor operation (first cycle) which serves to restore the segment levers 6I0. This tripping action would occur because pin I32 in the latch-operating arm 62I (Fig. 3), held depressed by key 218 and arm 229, is contacted by shoulder I33, as rocker cam 3I8 reof the stops M3, the
I63 and will move plate I59 and stores push rod I35 to normal position, tripping pivoted upon an arm I12 of shaft III, said memher lying normally between rocker cam SH! and push rod I35. Shaft I'II is rigid with plate I59, and, as said plate moves rearwardly at the end of the first total setting operation, pivoted member I13 will be carried out of register, with rocker cam 3I8, so that, upon the subsequent return of said cam to normal position, push rod I35 will not be operated. During the subtractive cycle of operation, however, plate I59, being restored to normal position by-pin I68 and part I69, pivoted member I'I3 will be restored to position beneath rocker cam 3I8, and at the end of this cycle the push rod will rock plate I34 and trip the total latch.
This tripping movement of push rod I35 is utilized to restore setting shaft I to normal position. For this purpose shaft I46 isprevided with an arm I'I5.carrying the pawl I' I6 which, as shaft I46 is rocked forwardly is held-by spring I I1 in contact-with a shoulder IIll of push rod I I35. As the rod is moved downwardly, pawl I16 and arm I'I5will1rock the setting shaft back to normal position. Setting shaft I46 and the parts controlled thereby being restored to normal position; and total latch 620 being tripped, an ordinary total taking operation will now occur.
Since the taking of a negative total will involve three reverse operations of the rocker 325, the plate 4 I 9 will be moved at each cycle of operation from the position shown in Fig. 5 to that illustrated in Fig. 6, and if the transfer total lever-6| is set to active position at this time, three additive movements of the lower accumulator will be ef- Iected. Near the end of each of these cycles of operation the plate 9, in moving to its lower position-will contact with the stud of hook I5 and move plate IS also into its lower position. During the first cycle of operation, the complemental registration taken from the upper or A accumulator will be added into the lower or "3 accumulator, and during the second cycle this same amount, which hasbeen locked in the stop members I43 will be added into B accumlator a second time. During the third cycle, the .true negative total taken from A accumulator will be added into Bf accumulator, the result being that, the two last named operations being complemental to each other, and thus cancelling out, the
complemental registration which originally stood in A accumulator will be correctly transferred to the B accumulator. This may be better understood from the following example:
Q i A accumulator "B accumulator method illustrated in the following example:
A accumulator B accumulator It should be noted that'the complement of the original'total above referred to is the complement of a complementally registered total, and
comprises the true negative total.
I claim:
1. In a register, the combination. with' two ac-- cumulators, means including selectively settable elements for adjusting said accumulators for add, subtract or non-add operation, and total printing means including a key operable to clear a total from either appropriately adjusted accumulator and to effect the printing; of normally inactive means adapted to cooperate with said adjusting means to adjust a given accumulator to registera total cleared from the other accumulator, and means settable to hold said normally inactive means in position for operation by the total key.
2. In a register, the combination with two accumulators, means including selectively settable elements for adjusting said accumulators for add, subtract or non-add operation, and total printing means including a key operable to clear a total from either appropriately adjusted accumulator and to effect the printing;. of means including a normally inactive cam adapted to adjust a given accumulator to register a total cleared from the other accumulator, a latch adapted to connect said cam with the first-named adjusting means, a latch engaging device, and means settable to hold said engaging device in position for operation by the total key. x LORING PICKERING CROSMAN.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729392A (en) * 1956-01-03 M butler
US2760722A (en) * 1956-08-28 Two-total credit balance adding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729392A (en) * 1956-01-03 M butler
US2760722A (en) * 1956-08-28 Two-total credit balance adding

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