US1534531A - Relayless counter - Google Patents

Relayless counter Download PDF

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Publication number
US1534531A
US1534531A US569078A US56907822A US1534531A US 1534531 A US1534531 A US 1534531A US 569078 A US569078 A US 569078A US 56907822 A US56907822 A US 56907822A US 1534531 A US1534531 A US 1534531A
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US
United States
Prior art keywords
circuit
magnet
card
counter
contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US569078A
Other languages
English (en)
Inventor
Clair D Lake
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tabulating Machine Co
Original Assignee
Tabulating Machine Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tabulating Machine Co filed Critical Tabulating Machine Co
Priority to US569078A priority Critical patent/US1534531A/en
Priority to DED42782D priority patent/DE415053C/de
Priority to FR563876D priority patent/FR563876A/fr
Priority to GB9702/23A priority patent/GB199356A/en
Priority to US722972A priority patent/US1534532A/en
Application granted granted Critical
Publication of US1534531A publication Critical patent/US1534531A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/20—Arrangements of counting devices

Definitions

  • This invention relates to improvements in tabulating apparatus, and more particularly to improvements in the record card circuit, the controlling means therefor and the controlled magnet circuit as were heretofore of. the type employed in electric tabulators shown in Hollerith Patent 945,236 and Lake Patent 1,307,740.
  • the record card circuit controls the energization of the counter magnet and the establishment of its circuit. After the circuit is initially energized the record card circuit is shunted by a suitable relay or other means so that arcing at the index point perforations is obviated by materially cutting down the flow of current in the card circuit. During these periods the magnet circuit is maintained only to be finally interrupted by a supplemental circuit controller or contact device.
  • the card circuit initiates the energizationof the magnet and the establishment of the circuit. Immediately I thereafter both the card circuit and the magnet circuit are automatically broken, and at the end of the cycle the magnet circuit is reestablished leaving the parts in proper condition for a new cycle upon the next closure of the card circuit. This arrangement prevents arcing at the card since ,the card circuit is broken and no current is flowing at the time the brush leaves the index point perforation in the card.
  • the present invention is directed to the provision of a simple arrangement of circuits which will provide for either shunting or actually breaking the card circuit and for maintaining the controlled magnet energized during the card cycle.
  • Fig. 1 shows a diagrammatic view of a conventional tabulating apparatus embodying the invention.
  • Fig. 2 is an enlarged detail of one counter and its associated contacts.
  • Fig. 3 is a similar detail of the other counter.
  • Fig. 4 is a detail showing one form of ball lndex point circuit controller.
  • Fig. 5 is a detail of another form of the record card circuit controller.
  • Fig. 1 of the drawings designates a stack of record cards which are fed by the usual upper and lower feed rolls l1 and 12 past cooperating brushes 13 and contact blocks 14.
  • the index point circuit controlling means may be of the form shown in Figs. 4 and 5.
  • metallic balls are. used to make the contacts through the index point perforations in the cards.
  • Fig. 4 two balls 15 are provided,'each being pressed into contact by means of spring 16.
  • the contact block 14 is suitably recessed to receive one of these springs and the common brush holder bar 17 is recessed to receive the other.
  • Fig. 5 illustrates a similar construction except that one of the balls 15 is 4 eliminated and contact'is made direct] with .contact block 14.
  • These devices are a apted to establish the card circuit when an index ppilnt perforation comes under the ball or
  • the gearing for rotating the feed rolls is shown conventionally at 18 in Fig. 1. This gearing receives its drive from a shaft 20 which by a belt and pulley connection is driven by tabulatormotor 21.
  • a shaft 22 forms the main drive shaft of the tabulator and is shown broken away in the upper part of Fig. 1 and extended into cooperation with two tabulator counters in the lower part of the figure.
  • a similar shaft 23 driven in unison with the card feeding devices carries a number of cams for operating certain contact devices as Will be hereinafter described.
  • the card feeding section of the machine is provided with the usual card lever 24 which closes card contacts 25 when cards are passing under the brushes.
  • start key 27 is depressed which, upon the closure of its contacts, establishes a circuit from line 28 through start key 27, motor relay magnet 29, stop key 30, tabulator motor 21, and back through wire 30*, etc. to source.
  • the energization of motor relay magnet 29 establishes a holding circuit for the tabulating motor 21 through the armature of motor relay magnet 29, line 31,through cam contacts 32 which are closed after the motor has rotated the parts, thence back through wire 28 to source. Cards now pass downwardly through the feed rolls and close the card contacts 25.
  • Cam contacts 33, 34 are make and break cams generally used in tabulating apparatus and serve to establish a circuit 35 to the card lever contacts 25 and to interrupt this circuit once per card cycle.
  • the attraction of the armature of motor control relay 37 establishes another holding circuit for the tabulating motor 21 through a line 38 and thence through motor relay 29 and through the rest of the circuit as previously traced. This holding circuit maintains the machine in operation when cam contacts 32 break once per card cycle.
  • the purpose of the contacts 32 is to interrupt the tabulating operation u n deenergization of motor control relay 3 after the last card has passed through the machine and permitted contacts 25 to open.
  • This circuit thus established shunts the card circuit and prevents arcing at the record card circuit controller when the brushes or their corresponding ball contacts. leave the perforations in the cards.
  • This circuit also maintains counter magnets energized during the remainder of the adding cycle, then break cam 34 opens circuits.
  • lVhat I claim is 1.
  • a tabulating apparatus the combination with a record card having an index point, oi a record card circuit and a magnet circuit, circuit controllers in said circuits, one of said controllers being operated by the i record card to establish both the card circuit and the magnet circuit, a magnet in said magnet circuit, means controlled by said magnet for interrupting the card circuit upon the establislnnent of the magnet circuit and means for concurrently and subsequently maintaining the flow of current in the magnet circuit.
  • a tabulating apparatus the combination with a record card having an index point,.of cooperating record card and magnet circuits, a controlling magnet in its circuit, record card circuit controlling means in its circuit, means for energizing said magnet and establishing its circuit upon the establishment of the record card circuit, means'for thereafter opening the record card circuit before record card operation of the record card circuit controller and for concurrently and subsequently maintaining the magnet circuit.
  • a counter wheel in. combination, a counter wheel, a clutch lever, a counter controlling magnet, an electric circuit including said magnet, record controlled means for establishing said circuit, means controlled by the energization of said magnet for taking the control of the said circuit from the record controlled means,
  • said last mentioned means comprising norand means for interrupting the circuitthrough the said record card controlled means and for providing a closed circuit for the said counter magnet during the adding cycle after the initial operation thereof under the control of the record card controlling means.
  • a tabulating machine in combination with a circuit, a record card controlled means therefor, of a counter wheel and a counter controlling magnet, of a clutch lever controlled but not actuated by said magnet, of contact devices cooperatively associated with said clutch lever, said contact devices having provision for cutting the record card circuit controlling means out of the main supply circuitfor said counter magnet upon the initial energization thereof and for maintaining a separate supply circuit for said magnet during the adding cycle.

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  • Credit Cards Or The Like (AREA)
  • Multi-Conductor Connections (AREA)
  • Lock And Its Accessories (AREA)
US569078A 1922-06-17 1922-06-17 Relayless counter Expired - Lifetime US1534531A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US569078A US1534531A (en) 1922-06-17 1922-06-17 Relayless counter
DED42782D DE415053C (de) 1922-06-17 1922-11-30 Stromkreisueberwachung fuer elektrisch angetriebene Tabelliermaschinen
FR563876D FR563876A (fr) 1922-06-17 1923-03-15 Perfectionnements aux appareils tabulateurs
GB9702/23A GB199356A (en) 1922-06-17 1923-04-09 Improvements in or relating to circuit-controlling devices for tabulating machines
US722972A US1534532A (en) 1922-06-17 1924-06-25 Relayless counter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US569078A US1534531A (en) 1922-06-17 1922-06-17 Relayless counter

Publications (1)

Publication Number Publication Date
US1534531A true US1534531A (en) 1925-04-21

Family

ID=24274013

Family Applications (2)

Application Number Title Priority Date Filing Date
US569078A Expired - Lifetime US1534531A (en) 1922-06-17 1922-06-17 Relayless counter
US722972A Expired - Lifetime US1534532A (en) 1922-06-17 1924-06-25 Relayless counter

Family Applications After (1)

Application Number Title Priority Date Filing Date
US722972A Expired - Lifetime US1534532A (en) 1922-06-17 1924-06-25 Relayless counter

Country Status (4)

Country Link
US (2) US1534531A (fr)
DE (1) DE415053C (fr)
FR (1) FR563876A (fr)
GB (1) GB199356A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547457A (en) * 1945-06-22 1951-04-03 Ibm Drive means for reciprocable type bars
US2581870A (en) * 1946-04-29 1952-01-08 Duba Ab Total transfer mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL213902A (fr) * 1956-06-29
DE1089451B (de) * 1958-05-22 1960-09-22 Karl Schaper Elektrische Programmsteuerung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547457A (en) * 1945-06-22 1951-04-03 Ibm Drive means for reciprocable type bars
US2581870A (en) * 1946-04-29 1952-01-08 Duba Ab Total transfer mechanism

Also Published As

Publication number Publication date
US1534532A (en) 1925-04-21
DE415053C (de) 1925-06-13
GB199356A (en) 1924-07-09
FR563876A (fr) 1923-12-15

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