US3557948A - Momentum-transfer card brake - Google Patents

Momentum-transfer card brake Download PDF

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Publication number
US3557948A
US3557948A US828861A US3557948DA US3557948A US 3557948 A US3557948 A US 3557948A US 828861 A US828861 A US 828861A US 3557948D A US3557948D A US 3557948DA US 3557948 A US3557948 A US 3557948A
Authority
US
United States
Prior art keywords
card
brake
impact
cards
movable brake
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
US828861A
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English (en)
Inventor
Le Roy E Gerlach
Gary B Woehler
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.)
Unisys Corp
Original Assignee
Sperry Rand 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 Sperry Rand Corp filed Critical Sperry Rand Corp
Application granted granted Critical
Publication of US3557948A publication Critical patent/US3557948A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K13/00—Conveying record carriers from one station to another, e.g. from stack to punching mechanism
    • G06K13/02—Conveying record carriers from one station to another, e.g. from stack to punching mechanism the record carrier having longitudinal dimension comparable with transverse dimension, e.g. punched card
    • G06K13/08—Feeding or discharging cards
    • G06K13/0843—Feeding or discharging cards from or back into the same magazine
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K17/00—Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
    • G06K17/0003—Automatic card files incorporating selecting, conveying and possibly reading and/or writing operations
    • G06K17/0006—Automatic card files incorporating selecting, conveying and possibly reading and/or writing operations with random access selection of a record carrier from the card-file, e.g. the carriers are suspended on the selection device which in part of the card magazine

Definitions

  • the momentum-transfer card brake shown utilizes a mass matched to the mass of the card of documents with which the card brake is associated, with the card brake having an impact means upon which a card in motion empinges.
  • the momentumtransfer card brake is arranged in a housing in a relaxed position, and includes means for stopping the card brake and returning to its relaxed position after impact by a moving card.
  • This invention relates generally to the field of cardand document-handling apparatus. More specifically, it relates to a card-handling device wherein a plurality of end-coded documents are arranged in a stacked side-byside relationship, and are retained on a plurality of retaining pins. Individual ones of the cards or documents are selected by activation of predetermined ones of the retaining pins according to a predetermined code.
  • the document or card is returned at a relatively high rate of speed to a position where it can be engaged by the retaining pins.
  • This invention relates specifically to the momentum-transfer card brake utilized for stopping the returning card in a manner to be most advantageous for the card to be returned to the stack.
  • Cardbraking mechanisms are also known in the prior art.
  • Such prior art braking mechanisms characteristically have utilized springs or spring-biased members for engaging the card as it is returned, for bringing the card to a halt due to the operation of the spring members.
  • Such devices have an inherent disadvantage in that the momentum of the card is slowed by the operation of the spring member, and is accelerated in the reverse direction as the card stops with the spring in a maximum compressed condition.
  • Such a reverse acceleration results in a problem of card dropout, that is, the card failing to be engaged by the retaining pins.
  • this invention relates to a card brake which operates on the principal of momentum-transfer between two bodies, wherein a complete transfer of momentum between an initially moving card and a stationary brake causes the card to be brought to a complete stop while the brake moves on with a momentum equal to that originally possessed by the card.
  • the card thus stopped, is then operated on only by the forces of gravity, for engaging the card-retaining pins, without any acceleration in the reverse direction as is encountered in the spring-type braking mechanism.
  • the momentum-transfer card brake operation is accomplished by selecting the mass of the brake to have a predetermined relationship with the mass of the card.
  • the primary object, then, of this invention is to provide an improved card-handling system. Yet another object of this invention is to provide an improved card-handling system having a improved card brake mechanism. Still a further object of this invention is to provide an improved card brake mechanism for bringing a moving card to a stop without imparting any reverse-direction acceleration thereto. A further object of this invention, is to provide a card brake operating on the principal of transfer of momentum between a moving body and a stationary body.
  • Still another object of this invention is to provide an improved momentum-transfer card brake for use in a document-handling apparatus wherein a plurality of end-coded documents are retained on a plurality of document-retaining pins in a stacked side-by-side relationship, for minimizing damage to the supporting tabs in the end-coded arrangement due to the absence of reverse acceleration, and minimizing card dropout when cards are being returned to the stacked relationship.
  • FIGv I is an illustrative perspective view of the end-coded arrangement of a card that might be utilized in conjunction with this invention
  • FIG. 2 is a diagrammatic view illustrating the relationship of the end-coded portion of a card with a plurality of card-retaining pins
  • FIG. 3 diagrammatically illustrates the relationship of a card being returned to a stack and the location of the momentum-transfer card brake
  • FIG. 4 is a partially broken away side view of the housing and momentum-transfer card brake
  • FIG. 5 is a cross-sectional view taken at line 5-5 in FIG. 4, and illustrates the relationship of the momentum-transfer card brake within the supporting housing. 7
  • FIG. 1 illustrates a partial perspective view of an end-coded document 10 having a width W and a thickness T.
  • the docu ment 10 can be any of several well-known types of documents. for example, punched cards, a magnetic card strip comprised of a plastic-type body having magnetic material coated thereon, or the like.
  • the document I0 has notches l2, 14, I6, and 18 formed in one end thereof. It should be understood that, while four notches are shown, the number is illustrative only, and that manylmore such notches could be used in a practical application.
  • the sides of notches I2 and I6 are unrestricted, thereby indicating that no documents-supporting action is accomplished by these two notches.
  • Notches l4 and 18 have document-supporting tabs 14a and 18a associated therewith respectively. These tabs 14a and 18a operate in conjunction with card-retaining pins to support document I0.
  • FIG. 2 there is shown a diagrammatic representation of card 10 supported at tabs 14a and 18a by card-retaining pins 20 and 22, respectively. It can be seen that card-retaining pins 24 and 26 do not support document 10. Therefore, in order to release document 10 from a stack of documents, it would be necessary only to move pins 20 and 22 out of contact with tabs 14a and 18a, respectively, for permitting document 10 to be slipped out of the stack.
  • a braking mechanism 30 shown generally in relationship with the end-coded portion of document 10, but out of contact therewith, when document 10 is in the retained position on the card-retaining pins.
  • FIG. 3 there is shown a diagrammatic view of a portion of a card-handling apparatus, and illustrates a card-retaining pin 22, and a plurality of cards 10, 32, 34, and 36, which may or may not be supported thereby.
  • the card brake mechanism 30 is shown mounted to support 38.
  • the pin 22 is rotatably mounted at its ends by mounting members 40 and 42.
  • the coded pin drive 44 operates in response to selection signals from a source (not shown) to cause selected ones of the pins to be rotated as described above for the selection of a desired document.
  • FIG. 4 is a side view of the momentum-transfer card brake of this invention, with a portion of the housing 60 broken away for ease of reference, and FIG. 5 is a sectional view taken along line 5-5 in FIG. 4 for illustrating the relationship of the housing 60 and the momentumtransfer card brake 62.
  • FIGS. should be considered in conjunction for a complete understanding of the structural relationship of the momentumtransfer card brake.
  • the housing 60 has a top portion 64, and a pair of parallelly disposed sides 66 and 68.
  • the sides 66 and 68 are mounted on a supporting member 70 housing 60 also has end members 72 and 74 for retaining the momentum-transfer card brake 62 within the housing.
  • the support member 70 has a slot 76 through which the card travels to contact the momentum-transfer card brake 62.
  • a pad 78 is mounted to the top member 64.
  • the pad can be comprised of a resilient material or a spring member for engaging the card brake as it is accelerated upward due to the impact ofa card. This resilient material functions as a cushion for minimizing shock and vibration in the card brake while bringing it to a stop for allowing it to return to its rest position on support member 70.
  • the housing 60 has a length L of approximately the same dimension as the width W of the cards.
  • the card brake 62 is comprised of an upper member 80 and a pair of side members 82 and 84.
  • the side members 82 and 84 are notched along their length for holding an impact-bearing member 86 therein.
  • the impact-bearing member has a length approximately equal the width W of the cards.
  • the impact-bearing member 86 can characteristically be made of leaf-spring material, and is the portion of the card brake that the cards impact when being brought to a stop.
  • the leaf-spring bearing member 86 cushions the impact of the card as it strikes the mechanism, and transfers the energy from the mov ingcard to the card brake 62.
  • a proper selection of the mass of the card brake 62 characteristically is to select the mass of the card brake substantially equal to the mass of the cards with which the card brake will be utilized.
  • the card brake 62 moves upwardly in the housing 60 it will impact the pad member 78, and will be brought to a stop. When stopped, the card brake will be returned to its rest position on support member 70 and will be ready to stop the next card as it is returned to the stack. in this mode of operation, it can be seen that there is little or no reverse acceleration imparted to the card due to the operation of the card brake. Accordingly, the returned card can settle back onto the retaining pins without undue force, thereby minimizing the damage to the supporting tabs and avoiding card dropout.
  • Card brake apparatus for use in card-handling apparatus wherein a plurality of cards are stacked, with each of the cards having a predetermined width and having similar predetermined masses, and wherein individual moving cards are to be stopped and added to the stack, said card brake apparatus comprising: movable brake means having a rest position and arranged for receiving the impact of a moving card, said movable brake means having a mass substantially equal the mass of the card, whereby the momentum of the card is transferred to said movable brake means and the card is stopped while imparting no substantial reverse-direction acceleration to the card; and housing means slidably supporting said movable brake means for returning said brake means to said rest position after impact by the card.
  • said movable brake means includes impact-bearing means for transferring the momentum of the card to said mass olsaid movable brake means and for cushioning said impact, thereby minimizing impact-damage to a card.
  • Card brake apparatus as in claim 2 wherein said impactbearing means comprises leaf-spring means having a length substantially equal the width of the card.
  • said movable brake means includes a pair of sidewall members, each of said sidewall members having a slot extending along their length, said sidewall members being parallelly arranged with said slots being oppositely disposed; a top member for joining said sidewall members together; and leaf-spring means fixedly disposed in said slot for receiving said impact of the card and transferring the momentum of the card to said movable brake means.
  • said housing means includes a pair of parallelly arranged sidewalls for slidably engaging said movable brake means, top means for joining said pair of sidewalls, support means mounted on said pair of sidewalls for supporting said movable brake means in said rest position, and resilient stop means mountedon said top means for stopping said movable brake means following impact and transfer of momentum from the moving card.
  • Card brake apparatus for use in card-handling apparatus wherein a plurality of end coded cards are stacked in a sideby-side relationship on a plurality of selectively actuatable card-retaining pins for individual selection of desired ones of the cards by coded actuation of the card-retaining pins
  • said card brake apparatus including: housing means having a pair of parallelly arranged sides, each of said sides having predetermined length and height dimensions, upper extremities, and lower edge surfaces, top means extending along said length dimension of said sides and joined to said upper extremities, supporting means extending along said length dimension of said sides and joining said lower edge surfaces, said supporting means including a card-receiving slot along said length dimension for receiving the end of a moving card, and stop means mounted intermediate said sides on said top means; and movable brake means slidably disposed in said housing means on said support means and having a length dimension approxi matel y equal the width of the moving card and a mass substantially equal the mass of the moving card, said movable brake means including impact-be
  • said movable brake means includes a pair of sidewall members, each of said sidewall members having a slot extending along their length, said sidewall members being parallelly arranged with said slots being oppositely disposed; top member for joining sidewall members together, and leaf-spring means fixedly disposed in said slots for receiving said impact of the card and transferring the momentum of the card to said movable brake means.
  • Card brake apparatus for use in card-handling equip ment, wherein a plurality of cards are stacked in a side-by-side relationship, each of the cards having an endcoded portion for permitting individual selection of desired ones of the cards for reading or recording thereon, said apparatus including; a plurality of selectively actuatable card-retaining pin means for cooperating with the end-coded portion of the cards for retaining the cards in the stacked relationship; card return means for guiding moving cards to a predetermined portion of said selectively actuatable card-retaining pin means for returning the cards to the stack; and card brake means coupled to said card return means, said card brake means including movable brake means having a rest position and arranged for receiving the impact of a moving card, said movable brake means having a mass substantially equal to the mass of a card, whereby the momentum of the card is transferred to said movable brake means and the card is stopped without imparting substantial reverse-direction acceleration thereto and housing means for slidably supporting said movable brake means, said housing means including a
  • said movable brake means includes a pair of sidewall members, each of said sidewall members having a slot extending along their length, said sidewall members being parallelly arranged with said slots being oppositely disposed; a top member for joining said sidewall members together; and leaf-spring means fixedly disposed in said slots for receiving said impact of the card and transferring momentum of the card to said movable brake means.
  • Card brake apparatus as in claim 9 wherein said housing means includes resilient stop means for stopping said movable brake means following impact and transfer of momentum from the moving card.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
US828861A 1969-05-29 1969-05-29 Momentum-transfer card brake Expired - Lifetime US3557948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82886169A 1969-05-29 1969-05-29

Publications (1)

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US3557948A true US3557948A (en) 1971-01-26

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Application Number Title Priority Date Filing Date
US828861A Expired - Lifetime US3557948A (en) 1969-05-29 1969-05-29 Momentum-transfer card brake

Country Status (5)

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US (1) US3557948A (enrdf_load_stackoverflow)
JP (1) JPS519557B1 (enrdf_load_stackoverflow)
DE (1) DE2025178A1 (enrdf_load_stackoverflow)
FR (1) FR2048636A5 (enrdf_load_stackoverflow)
GB (1) GB1307743A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126227A (en) * 1975-06-16 1978-11-21 Leon Renato S Record filing system
US4436301A (en) 1981-11-02 1984-03-13 Xerox Corporation Document restack transport

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11894154B2 (en) 2022-02-02 2024-02-06 Curio Solutions Llc Modular, integrated, automated, compact, and proliferation-hardened method to chemically recycle used nuclear fuel (UNF) originating from nuclear reactors to recover a mixture of transuranic (TRU) elements for advanced reactor fuel to recycle uranium and zirconium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995366A (en) * 1958-03-17 1961-08-08 Burroughs Corp Document arresting means
US3148879A (en) * 1961-08-31 1964-09-15 Ibm Stacking apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2995366A (en) * 1958-03-17 1961-08-08 Burroughs Corp Document arresting means
US3148879A (en) * 1961-08-31 1964-09-15 Ibm Stacking apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4126227A (en) * 1975-06-16 1978-11-21 Leon Renato S Record filing system
US4436301A (en) 1981-11-02 1984-03-13 Xerox Corporation Document restack transport

Also Published As

Publication number Publication date
DE2025178A1 (de) 1971-02-25
GB1307743A (en) 1973-02-21
JPS519557B1 (enrdf_load_stackoverflow) 1976-03-27
FR2048636A5 (enrdf_load_stackoverflow) 1971-03-19

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