US2442987A - Automatic group control with coordinated sequence checking device - Google Patents

Automatic group control with coordinated sequence checking device Download PDF

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Publication number
US2442987A
US2442987A US552164A US55216444A US2442987A US 2442987 A US2442987 A US 2442987A US 552164 A US552164 A US 552164A US 55216444 A US55216444 A US 55216444A US 2442987 A US2442987 A US 2442987A
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United States
Prior art keywords
contacts
relay
control
circuit
card
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Expired - Lifetime
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US552164A
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English (en)
Inventor
David W Rubidge
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International Business Machines Corp
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International Business Machines Corp
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Priority to NL78118D priority Critical patent/NL78118C/xx
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to US552164A priority patent/US2442987A/en
Priority to GB2216945A priority patent/GB598019A/en
Application granted granted Critical
Publication of US2442987A publication Critical patent/US2442987A/en
Priority to DEI2090A priority patent/DE858461C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • This invention relates to tabulating machines but more particularly to 'the type provided with automatic group control devices.
  • the broad object of the present invention is the provision'of an automatic group control device enabling the customary initiation of total taking operations upon a change in group numbers when the-group numbers follow in the desired sequence which includes a coordinated sequence checking device to verify the preliminary sorting, collating, and handling of cards.
  • the main object of the invention toprovide an automatic group control device and a coordinated sequence checking device which. detects thev out-oi-order position of a card group. with. respect. to its proper numerical position. in a. run. of cards consisting, ofa plurality of successive groups.
  • Another object of the invention is to provide a record sequence checking mechanism effective during record controlled accounting operations to detect errors in sequence, and without requiring visual review of the result sheet when it is completed or considerably later when it is to be used for bookkeeping purposes,
  • a further feature of the invention is the provision of an automatic group control device and coordinated sequence checking device which enables normal total taking operations upon a change in group number, but renders the machine inoperable wheneverthe sequence checking device detects a deviation from the normal numerical sequence of the groups.
  • Another object of the invention is to provide a sequence checking device which suppresses further operations of the machine whenever the numerical progression of successive cards deviates from anascending or a descending progression, depending upon the initial numerical progression of the cardgroups.
  • a further object of the invention is to provide a sequence checking device which prevents total taking operations whenever successive cards are not arranged in the numerical-sequence that data groups are to be listed.
  • a still further object of the invention is to provide aseq-uence checking device which can be selectively conditioned to detect the deviation of a card away from an ascending or a descending numerical sequence of the card groups.
  • a still further object of the invention is to provide a simple and effective group control system which can be utilized apart from the previously referred to sequence checking device.
  • the automatic group control system isshownherein. in connection with a card controlled accounting machine but its embodiment can be. varied and. can be satisfactorily incorporated in other forms of machine where comparison of character data is required, such m'achines being, for example, sorting machines, collating machines,. card punching, machines, address printing machines, etc.
  • the present invention contemplates a system of automatic control wherein the control circuit which determines whether or not' a change in the condition of the machine shall be effected is controlled from a system of magnets, two magnets A and B being provided for each controlling card column which are wired independently to eachof the analyzing brushes for a given card column. These magnets cooperate with a duplex armature construction which is biased to hold the card column are identical on successive cards asin this case at each index point during the cycle,;
  • the two magnets will be energized or-deenergized. If controlling perforations are diiferent in the given column of two successive cards, at the time the first perforation is sensed the circuit of one of the magnets will be closed through said card perforation while the circuit of the other magnet remains open, thus permitting shifting of one of the duplex armatures to open the contacts of the control circuit.
  • the present construction obtains marked advantages over the difierentially wound relay and other forms when used for group control pur poses. Digressingto the former arrangement,
  • an object of the invention to provide a comparing control relay structure that is not sensitive to potential diiferences and corresponding fluxvariations in the two magnets,'
  • this obj ect is' preferably carried out by having the corresponding polepieces of both magnets associated. with a common armature normally biasedto provide difierential airgaps.
  • the normal airgap is disposed between'each magnet A and and one end of the armature it is to attract, whereas due to the angular position of the armature with respect to thepolepiece surfaces, a much'smaller gap, or none at all, is provided between the other end of the said armature and the corresponding polepiece of the other magnet.- This enables the movement of a single armature whenits related magnet is energized but through the polepiece of said magnet the other armature is maintained in its normal position.
  • the first magnet energized provides a superior control which is not unbalanced or changed in any way by the subsequent energization of another magnet.
  • the potential differences or variations in flux density of. polepieces of the two magnets can be varied over avery wide margin and this inherent feature insures the more positive and efficient operation of the group control system, when relays of the novel construction are utilized for this purpose.
  • Fig. 1 is a wiring diagram of the circuits of a well known form of card controlled accounting machine having incorporated therein the automatic group control circuits controlled by the novel form of relay structure, said group control relays having additional contacts and sequence controlling circuits for detecting deviations from the normal sequence of group control numbers.
  • Fig. 2 is a detail showing the control magnets V forming part of the improved control relays and the preferred arrangement of duplex armature and cooperating contacts.
  • FIG. 3 is a timing diagram outlining the timing ,of the cam operated contacts utilized in the on 7 cuit diagram.
  • contacts 3520 will set up a holding circuit for the magnet 342, traceable from line 334, wire 343, magnet 332, contacts 342a, wire 344, contacts 349a, to line 335.
  • the machine "will, as fully described in the aforementioned oneness n'ebf two things: If the autoniati'c resetting switch 356 is open, the machine will stop; if the "auti'ndatic resetting switch is closed' the-machine will automatically enter upon a resetting cycle of operation, not involved in the present operation.
  • the automatic group control circuits herein are modified to work with the novel form'of group control relays forming part of the present inventionandsuch circuits in some'respects are, therefore, slightly diflferent from those embodied in the machineof PatentNo. 1,976;617.
  • the circuit arrangement is alike for each denominational order and the description'will be given in connection with one of such orders.
  • a number-of relay magnets are provided, each having a'pickup winding 359 and a holdingwinding 36%! and two of such relays are provided for each *denominationalor'der.
  • Windings 359 associated with the upper'brushes 'UB terminate in plugboard sockets 3
  • Suitable plug connections may be madefrom :such sockets, such as MS and M1, to the plugboard sockets 300 and 36!, respectively, of the controlling columns of the LB and U3 brushes, respectively.
  • each relay is adjacently mounted so that the polepieces362-are associated with a common armature 565 pivoted-atfill and with'referen'ce to the otherpolepieces 354, these are likewise associated with a --double armature 312 pivoted at 313.
  • Each armature 365 and 31 2 operates buttons314 of insulatingmaterial and abutting the longerconta-ct blades of the -A3or B3 contacts'and the intermediate longer contact blade of the transfer contacts Aland-A2, Bland B2.
  • Any suitable means may be provided to bias the armatures-3'B5- and 312 so-that each normally rests against the polepiece of the-magnetwhich is not adapted t'o-rock-the armature even though. it attracts-it.
  • the resiliency of said longer contact blades bias the armatures 3555 and 312 to the normal positionshownin the drawings.
  • the pickup windings 359 of the A and B magnets will be concurrently energized.
  • the polepiece 364 of the A magnet will magnetically hold the armature 312.
  • Polepiece 36201 the B magnet will, with the same magnetic force, hold the armature 365 in its normal position.
  • the equal magnetic force is derived by transmitting an electrical impulse of the same potential to the pickup windings of the A and B relay magnets preferably by having their windings equal as well as their cores of the same material to provide an equal magnetizing force for attraction of the armatures 365 and 312.
  • the novel construction of the present relay enables, by coordinated novel wiring connections, additional functions to be performed.
  • One of the applications finds special use in tabulating machines to verify a predetermined sequence while taking group totals, allowing the machine. to continue as long as cards pass through in the proper numerical sequence, either ascending, or. descending.
  • the novel construction of this part of machine will be described later and in connection with several examples.
  • Control pickup circuit This circuit for the brushes U3 is traceable as follows: From line 334, cam contacts LHA, LCLg card lever contacts, circuit breakers CB (not shown in detail but which are similar to circuit breaking devices 6
  • the control pickup circuit for the lower brushes is from the line 335, lower card lever contacts 59, circuit breaking devices 6
  • each automatic control relay which consists of the pickup winding 359 and the holding winding 366 will-hereafter be designated as the A or B control relay.
  • the A relay is the one associated with the UB brushes and the B relay for the same denominational order is the one associated with the LB brushes.
  • This form of designation while varying from that of Patent No. 1,976,617, will be found to be more convenient herein in tracing circuits controlled by such relays.
  • each B relay causes, when its pickup winding 359 is energized before the pickup winding 359 of the A relay is energized, the closure of the B3 holding contacts and the transfer of other contacts to open the normally closed Bl' relay contacts and close the normally open B2 contacts.
  • the holding circuit for the holding coil of each B relay is from th: line 334, wire 302, LIZ cam contacts, winding 360 of the B relay, thence through the B3 holding contacts, wire 38! to line 335. It is thus apparent that a similar holding circuit is provided for the B relays for each denominational order.
  • the machine tests the setting or the Al and BI contacts for all denominational or der's. If there is an agreement in all the cone trolling columns the Al and BI contacts for all denominational orders Will have remained closed and a series circuit through such contacts will be closed.
  • the contacts associated with the socalled minor controlling field of the record card will be grouped together and a plug connection 320 is made between the plug socket 3I2 and minor plug socket 3 M. This places the units order contacts Al and BI in the minor holding circuit.
  • the plug connection 321 places the Al and B I relay contacts for the tens and hundreds orders in themaj'or holding circuit.
  • the ultimate object of the group control mechanism is to keep the motor control relay magnet 338 energized if there is agreement in both the minor and major control fields and to cause the energization of magnet 338 if there is a break or a disagreement in either of the two fields.
  • Minor holding circuit Magnet 338 is normally held energized through a circuit set up during the initial resetting cycle of the machine previously outlined in detail. During this cycle cam contacts Pl close and a circuit will be conipleted from the line 334, through carn contacts P1; minor control relay magnet 366; magnet 36! (not utilized in co'nnec tin with the present circuit) wire 368; rnotor controlrelay magnet 338,- Wire 3159,- cam contac'tsLIB, L9; wire 363 to the other side or the line 335'.
  • Minor control relay 366 closes its holdin'g contacts 366a to establish a holding circuit from line 334, contacts 366a, ininor control relay niag'net3fi6; magnet 361,- wire 368,- Inotor control relay magnet 338, wire 3E9, cam contacts LID, L9 Wire 363 to line 335.
  • This circuit is called the-minor holding circuit and remains energized as long as minor classification data on the'rec'ord cardsdoes not change.
  • Major holding circuit Concurrently, the setting up of the minor hold ing circuit, the major holding circuit is also completed upon closure of cam contacts PT, the circuit being established from line 334, cam contacts PT, the major control relay magnet 310, cam contacts L9, wire 363,- to line 335. Contacts 313a when closed,- provide a holding circuit for the major control relay magnet 310 in parallel with the holding circuit of the minor control relay 366 and this circuit remains energized until there is a disagreement in the classification data of' the major control field of the record cards.
  • the Al and B! contacts of the A and B relays respectively; associated with the units column when both closed and when plug connection 320 is made, as shown, short circuit contacts Llfl; the short circuit running from the lower blade of contacts Llll, wire 369, to the contacts of the units column, thence to the Al contacts t me same column; plug socket 312, plug connection 329, plug socket 3M to the upper blade of contacts LID.
  • the major shunt circuit comprises the Al and BI contacts of the tens and hundreds columns used for controlling and short circuits contacts L9;
  • the short circuit extends from the lower blade of contacts L9, plug socket 354, plug connection 320, plug socket 3l2, thence serially through the B! and AI relay contacts of the tens column and further serially through the BI and Al contacts of the hundreds column to plug socket 3l2, plug connection 32!, plug socket 3H5; relay cont'acts UCLe, which are closed while cards are passing the upper brushes, to the upper blade of contacts L9.
  • the group control mechanism herein employed operates in the normal manner to cause minor or major total taking operations or both, depending upon the column in which change in numerical sequence takes place and also provides for continuous listing operations for successive cards which are alike in their group number.
  • each group may consist of one or more cards of the same group number, which prevents total taking operations until succeeding cards bear unlike group numbers. With the present arrangement, total taking operations will be effected only when the upper card bears a higher group number than the lower card. If the reverse condition obtains, the machine will be stopped and the operator will be signalled.
  • the switch S (Fig. 1) is positioned at A (ascending sequence) to make contact with a contact point 316.
  • both the A and B relays of the tens denominational order will be concurrently energized without any change in the position of their 12 respective contacts. This is also trueof the 0 in the hundreds column, After taking the total, the tabulating or listing operations will proceed for all of the cards bearing the group number 23 and listing and total taking operationswill be repeated in succession for the following groups up to the group numbered 25.
  • the B relay will be energized to close the B3 holding contacts to retain the B relay energized as long as the L12 cam contacts remain closed. Energization of the B relay will open the BI contacts and close the B2 contacts, which latter have an additional function now to be described.
  • the BI contacts open the shunt circuit across the LIB contacts, attempting to condition the machine for a minor total taking operation which, as will be evidentlater, is inhibited.
  • the closure of the B2 contacts enables a circuit to be'closed from line 335, wire 363, UCLe contacts now closed, plug socket 3l5, plug connection 32l, plug socket 3I2, thence through the Al and BI contacts of the hundreds order, thence through the Al and Bi contacts of the tens order, thence through the Al contacts of the units order, now closed because the previous energization of the B relay prevents the A relay from being effective to operate its contacts, thence through the B2 contacts of the units order, wire 3", switch contact .point 376, switch lever of switch S; pickup winding of relay 380, wire 318, cam contacts Llfi, to line 334; Referring to Fig.
  • Ahold circuit for relay 380 is provided from the .line 335, wire 38!, through the holding winding of relay 380,
  • Theaforementioned circuit' causes. the maintainedillumination of the distinctive signal, light 384 which is visible to the operator to inform the latter of the deviationfromthe normalnumerical sequence.
  • the relay 330 opens contacts 38% which are in series withthe-SP orstop contacts sothat when such con.- tacts 38th are open the stop circuit of the tabulating machine will be open to terminate machineoperations which would, under the above, circumstances; be a following minor total taking operation
  • relay contacts 3800 close and: are wired in shunt with the L9L
  • relaycontacts38ilc provide the shunt circuit and thus prevent conditioning of the machine to take any-form of rtotal, major, .or minor.
  • the signal light'38A and-the stopping of, the machine will effectively inform the operator so that the reason for the. error can be detected;
  • the occurrence of the card bearing the group. number 25 at theLB brushes and the card bearing th'e group number 24 at theUB brushes prevented" the taking of the total of group 24 whichpreceded the out-of-order card 25.
  • Another out-of-order condition would be the passage of cards in groups 26, 25, 33 and 23-.
  • Card 38-, with respect to card: 25, is in an ascending sequence and normal operations will take place for this card-as it passes the LB brushes. However, following card 26 indicates a descending sequence with respect to card 38 and with this deviation in sequence the detecting mechanism will operate, but preventing in this instance the taking of a total for the out-of-order card group 38;" In either of the above cases the machine stops, this being a signal to the operator of the appearance of an out-of-order card. Further operations of the machine can be effected in various ways by the operator depending upon the manner of operation desired and how the error should be treated. In either case the depressionof button 386 extinguishes the signal light 38: ⁇ and deenergizes relay 380.
  • the A relay will beenergized at the time that the 3 index point'position of the card passing the UB brushes is sensed; thereby energizing the A relaybefore the 2'index point'position of the cardpassing the LBbrushes is. sensed.
  • control circuit the A3 contacts will be closedto provide the holding circuit for the A relay; Concurrently, the Al contacts will be opened and the A2 contacts will close. The closure of the A2 contacts will be ineifective for any control, since it is assumed that the machine is. conditioned for detection of deviation from: ascending numerical sequence.
  • the opening of the Al contacts will, however, open the circuit which would ordinarily be closed through the B2 contacts of the units order, wire 3", etc., when carncontact L16 closes, to cause the energization of the relay 380.
  • the Al contacts in the tens order exercises a superior control to prevent the energization of the relay 380 and the functions .eifected thereby.
  • the opening of the Al contacts opens the shunt circuit across the L9 and Llfl contacts to cause the deenergization of both the major control relay 310 and the minor control relay 3%, thereby causing successive major and minor total taking operations to be carried out in the normal manner.
  • the energization of the A relay in the units order was the instrumentality for effecting the indication of a deviation from the descending numerical sequence. This is not necessarily the case for all examples as is exemplified when cards bearing group numbers l9 and 20 pass the U3 and LB brushes concurrently.
  • the A relay will be energized in the units order, which relay will be ineffective to give an indication of deviation because in the tens order the B relay is previously energized when the 2 index point position is sensed by the LB brushes.
  • the group control mechanism will function to take major and minor totals but the energizing circuit to relay 380 will be ineffective even though in the units order the numerical sequence deviates from a descending sequence.
  • Another similar example would be cards representing 100 and 99 passing the LB and UB brushes, concurrently and respectively.
  • means for analyzing a serial numbering representation on one record and other means for analyzing the serial number representation on a following record means controlled by said analyzing means jointly and responsive to the analysis of serial number representations on successive records for ascertaining whether one record has a serial number representation which is unlike and deviates from the other record in the predetermined serial numbering sequence or conforms to said serial numbering sequence, total taking control means, means controlled by said ascertaining means for causing the operation of the total taking control means when the serial numbers of successive records are ascertained to be unlike, and means controlled by said ascertaining means to prevent the operation of the total taking control means when the serial numbers of successive records are ascertained to be unlike but deviate from the serial numbering sequence.
  • means for analyzing serial number representations on successive records means controlled by said analyzing means for ascertaining whether successive records pertaining to successive record groups are unlike in serial number representations and have serial number representations which conform to or deviate from the predetermined sequence, means to control total taking operations, control means controlled by said ascertaining means for causing the operation of the total taking control means when the serial numbers of successive records are ascertained to be unlike in value, and other means controlled by said ascertaining means to prevent the control means from being effective to cause the operation of the total taking control means when the serial numbers of successive records are ascertained to be unlike in value but deviate from the predetermined serial numbering sequence.
  • means for analyzing serial number representations on successiverecords means controlled by said analyzing means for ascertaining whether successive records have unlike serial number representa tions and deviate from the ascending or descending sequence, means to control total taking oper ations, means controlled by said ascertaining means for-causing the operation of the total taking control means when the serial numbers of successive record groups are ascertained to be unlike, means controlled by said ascertaining means to prevent the operation of the total taking control means when the serial numbers of successive record groups are ascertained to be unlike but deviate from the ascending serial numbering sequence or to prevent the operation of the total taking control means when the serial numbers of successive record groups are ascertained to be unlike and deviate from the descending serial numbering sequence, and means for selectively causing said ascertaining means to effect the

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US552164A 1944-08-31 1944-08-31 Automatic group control with coordinated sequence checking device Expired - Lifetime US2442987A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NL78118D NL78118C (de) 1944-08-31
US552164A US2442987A (en) 1944-08-31 1944-08-31 Automatic group control with coordinated sequence checking device
GB2216945A GB598019A (en) 1944-08-31 1945-08-28 Improvements in or relating to record card controlled machines
DEI2090A DE858461C (de) 1944-08-31 1950-09-23 Buchungsmaschine fuer die Auswertung von Aufzeichnungstraegern, insbesondere Lochkarten, in bestimmter Reihenfolge

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US552164A US2442987A (en) 1944-08-31 1944-08-31 Automatic group control with coordinated sequence checking device

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US2442987A true US2442987A (en) 1948-06-08

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US552164A Expired - Lifetime US2442987A (en) 1944-08-31 1944-08-31 Automatic group control with coordinated sequence checking device

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DE (1) DE858461C (de)
GB (1) GB598019A (de)
NL (1) NL78118C (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738874A (en) * 1949-01-31 1956-03-20 Ibm Record controlled machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL123850C (de) * 1953-04-16
DE952277C (de) * 1954-09-04 1956-11-15 Standard Elek K Ag Schablonenesteuerte Einrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1933349A (en) * 1927-04-22 1933-10-31 Ibm Automatic control system for tabulators
US2159094A (en) * 1934-04-04 1939-05-23 Ibm Tabulating machine
US2195851A (en) * 1936-07-14 1940-04-02 Ibm Card feeding mechanism
US2224769A (en) * 1935-12-12 1940-12-10 Ibm Tabulating machine
US2288823A (en) * 1937-09-25 1942-07-07 Remington Rand Inc Statistical machine
US2335945A (en) * 1940-04-15 1943-12-07 Ibm Record sequence checking device for tabulating machines
US2379828A (en) * 1940-07-24 1945-07-03 Ibm Record controlled machine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1933349A (en) * 1927-04-22 1933-10-31 Ibm Automatic control system for tabulators
US2159094A (en) * 1934-04-04 1939-05-23 Ibm Tabulating machine
US2224769A (en) * 1935-12-12 1940-12-10 Ibm Tabulating machine
US2195851A (en) * 1936-07-14 1940-04-02 Ibm Card feeding mechanism
US2288823A (en) * 1937-09-25 1942-07-07 Remington Rand Inc Statistical machine
US2335945A (en) * 1940-04-15 1943-12-07 Ibm Record sequence checking device for tabulating machines
US2379828A (en) * 1940-07-24 1945-07-03 Ibm Record controlled machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738874A (en) * 1949-01-31 1956-03-20 Ibm Record controlled machine

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DE858461C (de) 1952-12-08
GB598019A (en) 1948-02-09
NL78118C (de)

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