US2490360A - Perforated record sensing device - Google Patents

Perforated record sensing device Download PDF

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Publication number
US2490360A
US2490360A US768559A US76855947A US2490360A US 2490360 A US2490360 A US 2490360A US 768559 A US768559 A US 768559A US 76855947 A US76855947 A US 76855947A US 2490360 A US2490360 A US 2490360A
Authority
US
United States
Prior art keywords
card
sensing
pins
pin
sensing device
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
US768559A
Other languages
English (en)
Inventor
Reynold B Johnson
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to US768559A priority Critical patent/US2490360A/en
Priority to FR969134D priority patent/FR969134A/fr
Priority to GB20696/48A priority patent/GB653975A/en
Application granted granted Critical
Publication of US2490360A publication Critical patent/US2490360A/en
Priority to DEI2226A priority patent/DE937379C/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/04—Methods or arrangements for sensing record carriers, e.g. for reading patterns by mechanical means, e.g. by pins operating electric contacts

Definitions

  • This invention relates to punching or perforating machines and more particularly to machines of the type in which the punching may be controlled manually or by a previously punched card.
  • the invention is directed to improvements in the type of machine disclosed in F. Lee et al. Patent 1,976,618, granted October 9, 1934 but it is understood that the present improvements may be applied to other forms of machines with equally beneficial results and that the present showing is to be considered illustrative rather than restrictive.
  • the principal object of the invention is to provide a new form of record card sensing or analyzing mechanism which is adapted to sense the perforations of a master or pattern card to control the actuation of the punching mechanism.
  • the master or pattern card is placed in a carriage which reciprocates the card to pass a line of sensing elements, and since the reciprocations are numerous it is desirable to provide a sensing device which is out of contact with the card surface during the periods when the card is in motion to thereby obviate wear of the card surface and possible damage to the Sensing elements.
  • Fig. 1 is a top plan view of the punching and duplicating machine embodying the present invention.
  • Fig. 2 is an enlarged section taken on the lines 2-2 of Fig. 1 showing the sensing elements and their operating devices.
  • Fig. 3 is a portion of an end elevation of parts in Fig. 2 looking in the direction of the lines 3-3.
  • Fig. 4 is a wiring diagram of the electric circuits of the machine showing the manner in which the electrical elements of the invention are incorporated therein.
  • Pattern card It remains in its carriage so that it returns to the right and then accompanies the next blank card on its journey to the left.
  • This card I 0 is provided with perforations in selected columns which it is desired to duplicate in corresponding columns of each card 3.
  • a row or line of sensing pins 10a (see Fig. 2) is located in line with punches 5 and the operation is such that when a column of card If! is beneath pins Illa, the corresponding column of card 3 is beneath the punches 5.
  • the pins Illa at such time will sense the column of card I0 and if a perforation is found therein, a circuit will be completed to energize an appropriate duplicating magnet 60 to effect punching of a corresponding hole in the column of card 3.
  • each of the pins comprises a sleeve Ila in the lower end of which is inserted a tightly wound spring 12a.
  • spring I2a Within the lower end of spring I2a is the sensing point i3a. This construction enables a slight flexure of the lower extremity so that if the card should strike against the side of point l3a, it will yield and snap back in vertical alignment when released.
  • a hook I4a is secured in the upper end of sleeve Ila and engages in an opening of an insulating eyelet IS! in the free end of an armature link 1511 which is pivoted at Ilia to a metallic block Ila.
  • magnet 59 will, asusual, punch a hole in card 3 and as an incident thereto cause opening of contacts I28 before the card car'- riages are escaped to thenext column. Therefore, the circuits traced are broken, to enable re-' tracting of pins Illa, which will occur before the cards move, so that during such'm'ovement the' pins are out of engagement'with-the card.
  • pins lila are magnetically urged into sensing position for each card column sensed and when a hole is encountered, a circuit-is completed thru the magnet core to effectduplicate Where no hole is encountered, the second circuit is of course,- not completed andcarriage advance occurs under key control,-which I punching.
  • a card carriage and devices for advancing the carriage step'by step to present a succession of card columnsto the station in combination withsensing devices at the station, normally biasedoutof engagement with'the card-and means controlledby said advancing devices to cause the sensing devices to descend into engagementwiththe card at each step while the card is atrestand to be in raised position while the card is in motion.
  • a cardsensing device comprising a plurality of sensing pins'located adjacent-Ia card to be' sensed and" normally biased-out of engagement therewithya plurality of magnet arma tures one for each pin, *connected to said pins for moving the same into sensing position, a magriet common to allthe armatures and means-for energizing the magnet” to cause the pins to move concurrently into sensing position, engagementof apin in a hole inthe card enablingthe pin' to move a predetermined extent and engagement of a pin'with an imperforate part of the card limiting the movement of the pin to-alesser extent;
  • each sensing pin is constructed to enable flexure of the contactendout of a straight line, and spring means is providedto bias the end in a straight line.
  • a card sensing pin located adjacent a card to be sensed
  • a magnet armature connected to the pin for moving the same into sensing position, a mag net foroperating the-armature and means for energizing the magnet to cause'thepin to contact the card.

Landscapes

  • Engineering & Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US768559A 1947-08-14 1947-08-14 Perforated record sensing device Expired - Lifetime US2490360A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US768559A US2490360A (en) 1947-08-14 1947-08-14 Perforated record sensing device
FR969134D FR969134A (fr) 1947-08-14 1948-07-12 Machine à poinçonner ou à perforer
GB20696/48A GB653975A (en) 1947-08-14 1948-08-05 Improvements in or relating to card sensing devices for punching machines
DEI2226A DE937379C (de) 1947-08-14 1950-09-29 Anordnung zum Abfuehlen von Zaehlkarten mit Abfuehlstiften

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US768559A US2490360A (en) 1947-08-14 1947-08-14 Perforated record sensing device

Publications (1)

Publication Number Publication Date
US2490360A true US2490360A (en) 1949-12-06

Family

ID=25082842

Family Applications (1)

Application Number Title Priority Date Filing Date
US768559A Expired - Lifetime US2490360A (en) 1947-08-14 1947-08-14 Perforated record sensing device

Country Status (4)

Country Link
US (1) US2490360A (fr)
DE (1) DE937379C (fr)
FR (1) FR969134A (fr)
GB (1) GB653975A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007636A (en) * 1961-11-07 Vossen
US3059847A (en) * 1957-09-25 1962-10-23 Gen Time Corp Data transmission apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1256926B (de) * 1964-03-07 1967-12-21 Olympia Werke Ag Abtastvorrichtung fuer gelochte Aufzeichnungstraeger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3007636A (en) * 1961-11-07 Vossen
US3059847A (en) * 1957-09-25 1962-10-23 Gen Time Corp Data transmission apparatus

Also Published As

Publication number Publication date
GB653975A (en) 1951-05-30
DE937379C (de) 1956-01-05
FR969134A (fr) 1950-12-14

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