US2211165A - Electrically controlled accounting system - Google Patents

Electrically controlled accounting system Download PDF

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Publication number
US2211165A
US2211165A US144376A US14437637A US2211165A US 2211165 A US2211165 A US 2211165A US 144376 A US144376 A US 144376A US 14437637 A US14437637 A US 14437637A US 2211165 A US2211165 A US 2211165A
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Prior art keywords
relay
contact
conductor
circuit
punch
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Expired - Lifetime
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US144376A
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English (en)
Inventor
Harold C Robinson
Johnston Leith
Martin L Nelson
Carl P Clare
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Associated Electric Laboratories Inc
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Associated Electric Laboratories Inc
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Priority to BE428238D priority Critical patent/BE428238A/xx
Application filed by Associated Electric Laboratories Inc filed Critical Associated Electric Laboratories Inc
Priority to US144376A priority patent/US2211165A/en
Priority to FR838360D priority patent/FR838360A/fr
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Publication of US2211165A publication Critical patent/US2211165A/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 

Definitions

  • the present invention relates in general to a n electrically controlled accounting system.
  • the main object of the invention is the provision of an improved high speed punch capable of making a larger number of recordings per minute than is possible with the punch shown in the above patent.
  • Another object of the invention is the provision of storage devices for storing registrations in a system of the above type.
  • the card punch shown in the system of Patent 2,018,420, has a movable carriage operable step by step to set settable stops, or pins, in a set-up basket which are locked to control the punches to perforate a card. It is also necessary to return the movable carriage.
  • the step-by-step operation and return movement of the carriage the speed of operation of this card punch in that a definite time is required for complete operation of the punch.
  • the speed of operation is also determined by the number of columns in a record card which are to be punched'since each column of the card requires an additional stepping operation of the carriage. This time limit determines the number of card punches required in a system such as disclosed in the Robinson et in. Patent 2,018,420.
  • a new and improved high speed card punch of simple and reliable construction which does not have the time limiting factors of the punch shown in the above patent.
  • the new card punch while somewhat similar in construction to the punch in the above patent, does not have the movable carriage and the set-up basket which are the time limiting factors.
  • the new punch is less expensive and more reliable in operation because the movable carriage and set-up basket has been removed. Failure of the movable carriage to properly step or failure of the settable stops, or
  • the new high speed punch is also adaptable for use in a manually controlled accounting system.
  • a number of operators each individually controlled 2.
  • card punch by means of the key-boards directly associated with the punches. While the speed of a key-controlled punch is sufficient to keep up with the key actuations performed by the operator, the number of punches required in a large system depends on the number of operators needed to produce the required amount of perforated record cards.
  • one high speed punch is capable of recording the key actuations performed by approximately twenty operators.
  • storage devices are associated with each operators key-board for registering the key actuations. The high speed punch is operatively connected to them storage devices after each registration and the registration on the connected storage device operates the punch to record or punch a card in accordance with such registration after which the storage device and punch are freed for further operations.
  • Fig. 1 is a top view of the improved punch.
  • Fig. 2 is a sectional side view of the punch.
  • Fig. 3 is a top view of the date perforating details of the punch.
  • Fig. 4 is an end view of the date perforating details.
  • Fig. 5 shows a plunger lineswitch and associated masterswitch, a rotary lineswitch and a transmitting distributor indicated by the three rectangles on the left.
  • Fig. 6 shows the circuits of a receiving distributor.
  • Fig. 7 shows a group of pick-up relays, a sequence switch and a storage device individual to the receiving distributor of Fig. 6.
  • Fig. 8 shows a spotter switch and relay, part of the transfer relays, part of the polarized relays and solenoid magnets of the punch, and the circuits of the finder and punch.
  • Fig. 9 shows the circuits of two finger and punch combinations similar to that shown in Fig. 8.
  • Figs. 10 and 11 shows different side views of w the spotter relay and switch lllustrated in Fig. 8.
  • ister device comprises a sequence Fig. 12 shows an operators keyboard or set.
  • Fig. 13 shows one oi the two register devices associated with the key set in Fig; 12. This regswitch and storage condensers.
  • Fig. 14 shows part of the transfer relays, part of the polar relays and solenoid magnets of the punch, and the circuits of the finder and punch.
  • Fig. 15 shows a schematic diagram of the systern shown in detail in Figs. 5 to 9, inclusive.
  • Fig. 16 shows a schematic diagram of the system shown in detail in Figs. 12 to 14, inclusive.
  • the transmitting distributor illustrated in the three rectangles to the left in Fig. 5 is similar to the transmitter shown in Figs. 14, 15, and 16 of Patent 2,018,420.
  • the plunger lineswitch and associated masterswitch and the step-by-step rotary lineswitch are of the well-known type used in automatic telephone systems.
  • the sequence switches are mechanically similar to the rotary lineswitches and therefore step their wipers .on deenergization of their stepping magnets.
  • the receiving distributor is mechanically similar to the receiving distributor shown and described in. Patent 2,018,420.
  • the polarized relays associated with the punches are of the type shown and described in Patent 1,673,884 issued June 19, 1928, to H. C. Pye. While only a few transfer relays are shown in Fig.
  • each sales room has one or more transmitters such as disclosed in Figs. 2, 3, 4, 5, 14, 15, and 16 in the Robinson et a1.
  • Patent 2,018,420 A plunger lineswitch is individually connected to each transmitter. Each plunger lineswitch has access to a plurality of secondary rotary switches which in turn have access to receiving distributors.
  • a sequence switch associated with each receiving distributor has access to a storage device comprising a pinrallty of condenser sets for storing a registration transmitted from the transmitter.
  • a finder switch associated with each improved high speed punch has access to all of the condenser storage devices.
  • the rotary lineswitch hunts for and connects with an idle receiving distributor and after this connection transmission is started.
  • the transmitter and receiving distributors then operate in synchronism 2&1 1,165
  • condenser storage device are charged in accordance with the successive transmitted codes.
  • a finder associated withan' idle punch is operated to find and connect this storage device with the idle punch.
  • Certain of the transfer relays are now operated by the finder to connect each condenser of this storage device to a corresponding polar relay in the punch whereupon thecondensers which are charged discharge to operate the corresponding polar relays.
  • the polar relays in turn operate corresponding punch solenoid magnets which, when the punch plate is operated, cause a card to beperforated in accordance with the operated solenoid magnets.
  • Figs. 1 and--2 The punch shown in Figs. 1 and--2 is somewhat similar in part tothe punch shown in the Lasker Patent 1,985,101 issued December 18, 1934, except that the movable carriage and set-up basket, having the settable stops, have been removed and replaced by anew and novel set-up mechanism.
  • the cards or blank records to be punched are fed one by one from a stack in a magazine I by a reciprocating card picker H0, which feeds the cards through a pre-adjusted throat Hi to pairs of constantly rotating feed rolls 2. From' the feed rolls 2 the cards pass between a pair of matched perforated plates H2 and H3 mounted upon a vertically movable frame 4 and spaced apart to form therebetween a punching chamber.
  • the punching operation is efiected by vertical reciprocation'of said plates relative to selected punches 33 of a set suspended vertically in denominational rows from a stationary perforated plate 8 and positioned to pass through the perforated plates M2 and H8 upon upward movement of the latter to thereby perforate the card, the plates 2 and H3 acting as punch guiding and die members, respectively, as will be clear.
  • the punches 33 are vertically movable in the plate 8 and normally spaced slightly above the card whereby they are normally moved -upwardly and idly by the latter.
  • Reciprocation of the plates M2 and H3 is efiected by means of a cam 5 fast upon a main drive shaft 58, and a rocking lever ll operatively connected to the frame use, as indicated at H5, and having a roller M6 engaging said cam 5.
  • the shaft'iiii is rocked in one direction by a lever Hi9 fast thereon and operated by a cam 8 fast on the main shaft 58 and in the opposite direction by a suitably arranged spring E28. After the card is punched and released by the stops ii, it is fed by rolls 5 to ejecting rolls it,
  • the selecting mechanism in realityoonsists of three assemblages, the solenoid block assembly, the intervening slide-rod assembly, and the punch selecting slide-rod assembly.
  • the solenoid block assembly comprises a substantially rectangular soft iron block 28 drilled for mounting the solenoid magnets 29 as shown in cross-section in Fig. 2.
  • the block 28 is accured to the frame of the punch by means of end bars 39 and 48 mounted on the base plate of the punch frame.
  • Each solenoid magnet 29 is individual to a particular punch 33 and since there are twelve punches 33 in a row there is also a corresponding number of solenoid magnets 29 in a row in block 28.
  • the block 28 may be drilled for a total of 540 solenoid magnets if it is desired to punch a hole in any one of the 540 perforation spaces on a record card.
  • Each solenoid magnet 29 has a plunger 43 which is magnetically operated to the right as shown in Fig. 2 when the winding of the solenoid is energized.
  • the plunger 43 operates the bronze push rod 3
  • the intervening slide-rod assembly comprises two end plates 31 and 38 and two side plates 24 and 26 suitably mounted on the base plate 25 and on the end frame members 34.
  • the side plate 28 is drilled with holes opposite each solenoid push rod 3
  • the slide-rods 21 are slidably inserted in the holes in the side plates and are bent in the shapes shown in Figs. 1
  • the side plate 26 is also secured to the solenoid block 28 by means of studs 32 and machine screws.
  • the punch selecting slide-rod assembly comprises the horizontal slide-rods I8, the vertical slide-rods I6, the plates 23, 2
  • the side plates I2 and I4 are fastened to the end frame members 34 by means of machine screws 36 and lugs 35 on the end frame members 34 directly above the outside edges of the stationary perforated plate 8.
  • the side plate I4 has a rectangular ripening cut' therein to enable the perforated guide plate I5 for the vertical slide-rods I6 to be fastened thereto as shown in Fig. 2.
  • the side plate I2 also has a rectangular opening to provide space for the lower horizontal slide-rods I8.
  • the stepcut member I3 is diagonally mounted between the two side plates I2 and I4 and secured thereto by machine screws.
  • the member I3 has as many steps as there are punches in a row and each stepis drilled with-intersecting horizontal and vertical holes.
  • a vertical hole is drilled for each vertical slide I6 and a horizontal hole is drilled for each horizontal slide I8.
  • the holes for the corresponding vertical and horizontal slide-rods intersect to form a cross or letter T as shown at II in Fig. 2.
  • the perforated, guide plate I5 has a guide hole for each vertical slide rod I6 and is secured to plate I4 and member I3 by machine screws.
  • the vertical slide rods I6 are inserted in the vertical T shaped holes I1 and the guide holes in plate I5 to engage the heads of punches 33.
  • the slide rods I6 are free to move upward with the punches 33 when the same are raised unless obstructed by the horizontal slide rods I8 which have been moved to the right in the horizontal hole I1. 7 i
  • and 23 are held in fixed position by the studs 4
  • and 42 extend from the upper portion 5 of member I3 to-the upper part of plate 2
  • and 23 are secured to the uprightbars 22 which are fastened to the side plate I2 by machine screws.
  • and 23 have guide holes therein through which the horizontal slide 10 rods I8 extend to lineup with their corresponding individual intervening slide-rods 21.
  • Each slide rod l8 has a collar 20 secured thereto and a spring I9 tensioned to maintain the rods I8 in the position shown in Fig. 2 with the collar 15 20 abutting the plate 23 so that the right-hand ends of slide rbds I8 do not obstruct the move ment of the vertical slide rods I 6 when the punches 33 are raised by frame 4 as previously described. 7
  • the date-punching mechanism shown in Figs. 3 and 4 comprises a. perforated plate 53, date selecting pins 54, 55, and 56, and a rotatable looking plate ii.
  • the perforated plate 53 has three rows of holes 51 therein corresponding to the punches 33 and is stamped with abbreviated months opposite the lower row of holes 51, while the other rows of holes correspond to the days of themonth.
  • is rotatably mounted on side plate I2 at 52 to enable the pins 54, 55, and 56 to be manually moved and inserted in the holes corresponding to the desired date. When plate 5
  • , secured at 62 to side plate I4 (Fig. 1) has a curved end which fits into a hollowed portion of plate 5
  • line relay 228 to cause the energization of line relay 228 Atfront contact 249 line relay 228 connects ground through. spring contacts 228 and 258 to maintain magnet 282 of the plunger lineswitch in operated position after-the plunger line relay 2M restores.
  • relay 223 connects grounded conductor i132v to the upper winding of recording relay 225 and at contacts 252 energizes relay 224.
  • Relay. 224 at contact 253 grounds the hold conductor 29!
  • contact 256 prepares a circuit for operating the stepping magnet 234 of the rotary lineswitch
  • contact 255 prepares a circuit for the test chain relay 2.
  • Recording relay 225 upon energizing, at contact 25!
  • test relay 2H5 is short circuited as follows: from grounded trunk conductor 283, associated bank contact and wiper 233, contact 259, back contact 225, contact 255, contact 25!, lower winding of. relay 2M, contact 231, to ground at contact 22!].
  • a branch of this circuit extends from contact 258 by way of contacts 254 and 260 to the interrupter springs 235 and through the winding of stepping magnet 235 to battery. Stepping magnet 236 energizes over this circuit and near the end of its stroke operates the interrupter springs 235 to open its own energizing circuit.
  • Stepping magnet 236 therefore operates in the manner of a buzzer to step the wipers step by step until wiper 233 no longer finds a grounded bank contact.
  • inal energizing circuit of recording relay 225 which, however, is maintained energized from grounded hold conductor 29! by way of its lower winding, and at contact 252 opens the circuit of the slow-to-release relay 224.
  • Relay 224 is made slow to release so as to maintain the hold conductor 29! grounded at contact 253 for a sui- Line relay 223, upon energizing, at contact 25! opens the origficient time to permit ground to be returned back start springs 310, and through the winding of the start-stop magnet 388 to battery.
  • the guard relay 320 alone is energized over this circuit, and the start-stop magnet 350 does not energize because of the high resistance of relay 320.
  • cut-through relay 222 also connected the grounded line conductor !82 to conductor 282 by way of wiper 232, through the upper operating winding "i of line relay 388 to battery. Responsive to this circuit line relay 38! operates its armature and at contacts 30! shunts the associated resistance R to fully energize the bucking winding 2, which just balances the winding 6 but allows the polarizing winding to hold the relay operated.
  • line relay 358 opens the circuit of the slowto-reiease guard relay 325 and completes the circuit for operating relay Sit.
  • line relay 225 prepares a point in the pulsing circuit through the receiving cam springs 325 to 325, inclusive.
  • Relay lil upon energizing over the above traced circuit, at contact 622i completes a circuit
  • Line relay 300 is somewhat similar 1 through the lower winding of two-step relay "3 to cause the latter relay to operate and close only its X contacts 428.
  • Relay 8 operates in its first step and at contact 428 completes a short circuit around its upper winding as follows: from grounded contact 421 through the upper winding of two-step relay 8, X contacts 428, conductor 333, contacts 388, 342, 332, conductor 233, back to grounded conductor 23l'.
  • - Relay 3l8 energizes in response to the operation of line relay 388 and at contact 3 grounds the hold conductor 283 to maintain the line switches in operated position and to maintain ground on conductor 333.
  • relay 3l8 places a shunt around contact 332, at contact 3
  • Relay 223 in the rotary line switch deenergizes shortly after the operation of cut-through relay 222 and at front contact 248 removes one of the multiple grounds from conductor 23l' as well as opening the circuit of relay 224 at contact 282.
  • slow-to-release relay 224 deenergizes to remove ground at contact 233 from conductor 29l' which at this time is grounded by way of conductor 283 and contact 3.
  • relay 224 opens the circuit to the chain relay 2 which now deenergizes to establish the chain circuit to allow other recording switches to switch through.
  • Slow-to-release guard relay 328 deenergizes after an interval and atacontact 32l prepares a point in the circuit for marking this distributor in the banks of the finders associated with the tact 325 disconnects ground from conductor 335.
  • relay 328 grounds conductor 28! to complete the circuit to the line relay in the transmitter shown in Patent 2,818,428 as follows: from ground through cam spring 313, conductor 333, contact 323, conductor 28l, bank contact and wiper 23L contacts 282, 241, 243, and 2
  • the operation of the transmitter line relay causes the operation of the transmitting distributor to transmit grounded code pulses over conductor N32 to conductor 282 for operating line relay 388 in the same manner as described in the aforesaid ill patent.
  • the motor 382 is continuously operated from a source of alternating current and is a synchronously operated motor for rotating the cams at a predetermined speed.
  • the transmitting distributor of the aforesaid patent and the receiving distributor shown in Fig. 6 now operate in synchronism.
  • the receiving distributor Since the transmitting and receiving distributors are now rotating in synchronism, the receiving distributor, due to the rotation of its cam shaft has first momentarily separated the lock spring 311 to unlock any locked pick-up relays, such as 48l to 488, inclusive, shown in Fig. '1; has separated mark springs 381 to remove marking ground from mark conductor to open the circuit of relay 4"; and has separated start springs 318 to open the circuit to the start-stop magnet 388 which now falls back and stops the cam shaft when it has completed one revolution.
  • the lock spring 311 to unlock any locked pick-up relays, such as 48l to 488, inclusive, shown in Fig. '1
  • start springs 318 to open the circuit to the start-stop magnet 388 which now falls back and stops the cam shaft when it has completed one revolution.
  • At contacts 25 opens another point in the chain circuit, at contact 535 connects the grounded lock conductor to the number 5 conductor of send back cable can and at contact see connects the mark conductor to wiper 382 of the sequence switch.
  • Pick-up relay 405 energises in response to the second pulse of the first transmitted code digit and said relay at contact 535 connects the grounded lock conductor to the number 5 conductor of send-back cable dbl and then through cam springs 385 andconductor 363 over the previously traced circuit back to the transmitting distributor.
  • Pick-up relay its, upon'energizing, at contact 353 prepares a point in the circuit forcharging the number 11 condenser of the first set associated with the first bank contact accessible to wiper 382 of the sequence switch and the pick-up relay 365 at contact lih prepares another point in this circuit.
  • the receiving distributor cam shaft has rotated far enough on its first revolution to reclose mark springs 38?
  • grounded conductor 399 is connected to mark conductor to reenergize relay iii and for completing the circuit to charge the storage condenser M of the first set accessible over the first bank con-- tact of wiper 382.
  • Relay til, upon energizing, at contact 63? completes the circuit by way.
  • Stepping magnet 588 energizes and positions its pawl, not shown, preparatory to stepping the wipers of the sequence switch and at'the same time opens its interrupter contacts.
  • the line relay 3% is ac cordingly energized at the time that the number 2 cam closes springs 372 and the number 5 cam closes the cam springs 31%.
  • the loci; cam operates the loci: springs (it? to disconnect grounded conductor 3% from the loci; conductor thereby deenergizing the operated pich up relays its and we.
  • the mark cam separates the cam springs 38? to likewise disconnect grounded conductor see from the mark conductor thereby opening 30 1 tact may be traced as follows: from grounded the cficuit to relay II! and to the condenser ll of the first .set.
  • the condenser ll maintains its charge and relay 4", upon deenergizing. op the circuit to stepping magnet III which accordingly deenerglzes and steps wipers "I to 486, inclusive, one step into engagement with their second bank contacts.
  • line relay 300 is energized by the first ground pulse of the second code to cause the operation of the pick-up relay 402 in a manner similar to that previously described.
  • line relay 300 operates and completes the circuit for energizing pick-up relay 0
  • Another condenser is simultaneously charged with this condenser whenever pick-up relays 402 and 404 are energized over the following circuit: from grounded mark Punch Punch Code Pick-up Condenmagnets magnets Digit trans relays sers operated operated mitted operated charged in 0 to 45 in 40 to column column 4-6 404-406 3-5 403-405 11 XI V 2-4 402-404 11-13 XI-HI V-IX 1-3 401-403 10 X VI 2-6 402-406 10-3 X-IlI VI-IX 5-6 1 I VII 4-5 1-3 I-IlI VII-IX 3-4 403-404 2 11 Vil'I 2-3 402-403 2-3 11-111 VIII-IX 1-2 401-402 3 III I l-G 401-406 Since the codescorresponding to the remaining digits are transmitted and checked in the manner similar to that just described, it is believed that the above chart is sufiicient to show the manner in which the remaining codes are transmitted and received.
  • pick-up relays 404 and 406 are operated, but do not closea circuit to charge any condenser because none is needed.
  • the relay Ill is energized to operate the step magnet 488 oithesequenceswitch so that the wipers or this switch will take one step at the commencement of the next code.
  • pick-up relays 4M and 406 are likewise energized but do not close any circuits to charge a condenser.
  • the switch S is in'Fig. 14 of the Robinson et al. patent has been'changed slightly so as to take one step after each code transmissicnuntil the entire message has been transmitted because, in the instant invention, it is not necessary for the transmitter to wait for a carriage return operation of the punch.
  • the change merely consists in multipling the stopping bank contact to the other multipled bank contacts accessible to the wiper controlling the stepping operation of this switch in a manner apparent from the disclosure.
  • the sequence switch shown in Fig. 7 is stepped one step for each coded digit received to prepare a circuit for charging one or two of the condensers in successive condenser sets of the storage condensers over the bank contacts in the manner previously described:
  • the sequence switch is in its last position, relay H1, at the same time it completes a circuit for energizing stepping magnet 480, also completes a circuit for operating relay 330 as follows: from ground byway of contacts 431 and 438, interrupter contacts of the stepping magnet 480, wiper 48l in engagement with its last bank contact, conductor 394, through the normally closed make-before-break contact 336, through the lower winding of differential relay 330, contact 324 and resistance to battery.
  • Relay 330 energizes before stepping magnet opens its interrupter contact and at contact 336 completes to the first bank contacts accessible to the finders associated with the punches shown in Figs. 8
  • a branch 01 this circuit. also extends through the winding of spotter relay and switch 580 to battery.
  • relay 330 removes the shunt from around contact 3i 2
  • contact 833 grounds conductor 284 by way of contact 3l3 thereby completing the circuit for energizing relay 288 in the rotary lineswitch of Fig. 5 by way of wiper- 28L at contact 334 opens .
  • a further point in the circuit to the guard relay 320 and at contact 335 prepares a point in the circuit for energizing its upper winding.
  • Relay 225 upon deenergizing, at contact 251 disconnects line conductor i 82 from line conductor 282 to deenergize line relay 300 and at contact conductor-"F B! to'deenergize the line relay in the lid.
  • Slowto-release relay did deenergizes after an interval and at contact 359 removes one of the multiple grounds from conductor 28 At contact it?
  • relay tit disconnects grounded conductor 23 from conductor see, thereby disconnecting ground from the mark and lock conductors.
  • the spotter relay and switch is shown in detailv in Figs. and 11.
  • This relay switch comprises the usual relay winding 58d and annature 586 for operating the spring contacts 58E, 582, and 583.
  • Mounted on the heel piece of this relay is a bracket 5' upon which the insulating disc 51B is secured.
  • the bank contacts 1, 2, and 3 extend through punched holes in disc are and are secured thereto in the position shown.
  • a shaft 514! extends through the bracket 5H and disc 5m to which wiper 58% is secured.
  • a ratchet wheel 588 is fastened to the shaft 516 which rotates in a hole in bracket 5' and a hole in bracket 5'83 which is mounted on bracket 5'.
  • a stop spring detent see is mounted on one ear of bracket Ell to hold ratchet 588, shaft 5%, and wiper 58d in set position.
  • a stop 572, mounted on the other car of bracket 51!, is provided to control the stroke of the spring pawl 581? which is mounted on the lower end of the auxiliary armature 585.
  • start relays 528, 525i, and 529 are energized from guarded contacts 585, 582, and 583 over their start leads and back contacts on; their associated test relays.
  • Start relay 6% upon energizing, at contact 52! prepares a point in the circuit for operating test relay 5N3, atcontact 522 completes a self-interrupting circuit for stepping magnet-eil and at contact E523 opens a point in the chain circuit to test relay etc of the second finder to prevent the second finder from seizing the calling distributor.
  • Start relay 52d of the second fin er upon energizing at contact 529 prepares a s ar circuit for its test relay 5 i t, at contact 522' completes a self-interrupting circuit for the stepping magnet 5%, and at contact 523' opens a point in the chain circuit to test relay 5M of the third'iinder to prevent the third finder from seizing the calling distributor.
  • Start relay 52 or the third finder upon energizing, at contact 52i prepares a similar test circuit for its test relay 5 idiat contact 522 completes a self-interrupting circuit ior stepping magnet 5635 and at contact 523 opens a point in the chain circuit to test relay hit of the first finder.
  • test relay did of the first finder is the only test relay which can be energized at this time.
  • the circuit for energizing test relay 5GB may be traced as follows: from grounded conductor 39E, first bank contact and wiper 592, contact 52E, through the lower multipled number 1 bank contacts, wiper 586, through the number 1 multipled bank contacts and through the lower winding of test relay 5m to battery.
  • Relay 3 59 in the receiving distributor energizes over the above-tracedv circuit when conductor 398 is grounded and at contact 365 main tains conductor 28% grounded.
  • Relay upon deenergizing disconnects ground from conductor 395 to remove the marking ground from the bank of the finder and for deenergizing spotter relay 586.
  • contact 3% relay 330 completes the circuit for reenergizing guard relay 32d and-at contacts 5-335 and B36 simultaneously opens the circuits through its upper and lower windings.
  • Guard relay 325 now energizes lit

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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US144376A 1937-05-24 1937-05-24 Electrically controlled accounting system Expired - Lifetime US2211165A (en)

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Application Number Priority Date Filing Date Title
BE428238D BE428238A (enrdf_load_stackoverflow) 1937-05-24
US144376A US2211165A (en) 1937-05-24 1937-05-24 Electrically controlled accounting system
FR838360D FR838360A (fr) 1937-05-24 1938-05-23 Perfectionnements aux systèmes de comptage à commande électrique

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BE (1) BE428238A (enrdf_load_stackoverflow)
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2595889A (en) * 1945-06-22 1952-05-06 Ibm Perforated-tape control of highspeed tabulating-card punches
US2623592A (en) * 1952-12-30 Card reproducing machine
US2917233A (en) * 1955-03-25 1959-12-15 Monroe Calculating Machine Carriage control of electrical readout means
US2967569A (en) * 1958-04-16 1961-01-10 Int Computers & Tabulators Ltd Punching apparatus
US3099512A (en) * 1958-09-19 1963-07-30 Hancock Telecontrol Corp System for recording registered data

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623592A (en) * 1952-12-30 Card reproducing machine
US2595889A (en) * 1945-06-22 1952-05-06 Ibm Perforated-tape control of highspeed tabulating-card punches
US2917233A (en) * 1955-03-25 1959-12-15 Monroe Calculating Machine Carriage control of electrical readout means
US2967569A (en) * 1958-04-16 1961-01-10 Int Computers & Tabulators Ltd Punching apparatus
US3099512A (en) * 1958-09-19 1963-07-30 Hancock Telecontrol Corp System for recording registered data

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Publication number Publication date
BE428238A (enrdf_load_stackoverflow)
FR838360A (fr) 1939-03-03

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