US3002750A - Card feed interruption - Google Patents

Card feed interruption Download PDF

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Publication number
US3002750A
US3002750A US786665A US78666558A US3002750A US 3002750 A US3002750 A US 3002750A US 786665 A US786665 A US 786665A US 78666558 A US78666558 A US 78666558A US 3002750 A US3002750 A US 3002750A
Authority
US
United States
Prior art keywords
throat
cards
card
hopper
vacuum
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
US786665A
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English (en)
Inventor
Wendell J Wheeler
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
Priority to NL246896D priority Critical patent/NL246896A/xx
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Priority to US786665A priority patent/US3002750A/en
Priority to US783921A priority patent/US3002751A/en
Priority to US783941A priority patent/US3007696A/en
Priority to FR813056A priority patent/FR1260018A/fr
Priority to CH8237259A priority patent/CH379175A/de
Priority to GB4419959A priority patent/GB919623A/en
Application granted granted Critical
Publication of US3002750A publication Critical patent/US3002750A/en
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
    • 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
    • G06K13/10—Feeding or discharging cards from magazine to conveying arrangement
    • G06K13/107—Feeding or discharging cards from magazine to conveying arrangement using pneumatic means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06K13/10—Feeding or discharging cards from magazine to conveying arrangement

Definitions

  • Cards can be loaded in the hopperby hand or loaded substantially automatically by an additional continuously loading hopper, commonly referred to as a file feed.
  • This file feed is generally placed above the hopper and the cards are then preloaded in the hopper and positioned above a card weight.
  • the card weigh-t is removed when a suflicient number of cards are in the hopper to permit cards to be picked.
  • elevators positioned adjacent the picker knife or Elevators are small lifters adapted to lift the bottom-most cards above the path of travel of the picking surface on the picker knife or knives. This lifting of the cards interrupts card feeding.
  • a jam may occur in the card transport section, or, if the card feed is used in connection with a card reader, the stacker for receiving the cards after they are read may become full.
  • the elevators are actuated to interrupt card feeding by raising the deck above the feed knives. above the picker knife, the deck of cards are placed. at a substantially greater angle than mentioned above. The bottom-most cards then have a tendency to slide into the throat. Also, the static friction between the cards and the scrubbing action of one card against another as it passes out of the hopper cause the cards to drift into the throat when attempting to stop card feeding at high speeds. The higher the speed of card delivery, the greater the number of cards that can become involved in the Jam.
  • a vacuum assist feed provides such a source although other vacuum sources would also suffice.
  • a vacuum assist feed is one in which vacuum is applied at the critical picking and throat areas to help pull the card down onto the picking knife surface and onto the throat block so as to pass through the throat gap.
  • the air pump which develops the vacuum
  • it was found that the average pressure was generally not suflicient to operate a piston and cylinder arrangement to actuate the elevators and throat barriers.
  • a pistoncylinder arrangement contains so much internal friction that it did not work fast enough for the speeds at which the cards were being fed. The mass was just too great to be able to be operated quickly.
  • an elevator and throat barrier arrangement are provided in combination with a card feed wherein the elevators interrupt card feeding by lifting the cards above the picker knives whenever cards are loaded into an empty hopper, or, when a jam occurs in the card transport section; and the throat barriers are provided to prevent cards from drifting into the throat gap and thereby preventing the picker knife from picking the wrong card when the correct instant arrives for card feeding.
  • a diaphragm is provided that is operated from the exhaust pressure from the pump and also the vacuum from the pump so as to drive both the throat barriers and elevators.
  • FIG. 1 is a schematic view of a business machine such as asorter.
  • FIG. 2 is a perspective View of a-card feed system showing'the position of theelevators and throat barriers.
  • FIG. 3 is a view showing the elevators andthroat barriers-being driven off the same drive.
  • FIG. 4 is a schematic view showing the elevators and throat barriers in combination with a vacuum pump, which pump supplies vacuum at the pickerknives and throat.
  • FIG. 5 is a cross-sectional View showing the details of a diaphragm used in connection with the embodiment of the invention. 7
  • FIG. 1 a schematic view is shown of a sorter ltlto which the inventioncan beapplied.
  • a hopper is shown at 12 which contains adeck of cards 14 which are adapted to be singly removed from the hopper by a picker knife 16and passed over a throat block 17 which defines a throat with the forward portion of the hopper 12.
  • Feed rolls are shown at 18 through which the cards are fed.
  • Sensing means-20 are also provided for sensing the cards so as to operate the appropriate magnet 22, and, in turn chute blade 24, to deflect the cards through the appropriate additional feed rolls 26 into the proper pocket 28. In this manner, cards may be sorted according to the information read by the sensing means 20 which is connected by a suitable electrical system for operating the proper magnet and chute blade to deflect the card into its appropriate pocket28.
  • FIG. 2 where the hopper 12 is shown in greater detail and is constructed in the same manner as other prior hoppers.
  • the hopper contains the hopper front wall 34, hopper side walls 36 (only one shown), and hopper post 38 (only one of which is shown in position). These define the hopper and are slightly larger than the cards so that they can be joggled to avoid card jams. Cutout portions 40 are provided in the hopper front wall to provide clearance for card guide rolls 41 and for the first feed rolls 18.
  • a throat knife blade 42 is shown fixed to the front wall and terminates into a knife edge 43 to form a throat for the throat block 17.
  • The-front wall of the hopper is bent so as to form the upper portion 44 for a throat chute which provides guidance for the card into a card transport section.
  • a bed'plate 46 is provided.
  • the bed plate is concave in the direction shown at 48 and is convex in the direction shown at 50.
  • the details of the bed plate are covered in copending application Serial No. 783,922, filedDecember 30, 1958, and assigned to the assignee of this application, the detailsof which form no part of this invention.
  • the throat block 17 is provided with slots 54 for applying a-vacuum to the cards.
  • the picker knife In order to remove the bottom-most card from the deck of cards in the hopper, the picker knife is oscillated in cutout portions 56 in the bed'plate 46. Thecard is pulled down onto the picker knife by vacuum through slots 58.
  • the details of the manner in which the vacuum is applied to the card, and the details of the vacuum system may be found in copending application Serial No. 783,921, filed December 30, 1958, and assigned to the same assignee as this application. The details of thatsystem form no part of this invention.
  • elevator arms are provided as shown at 60 adjacenteach side of'the picker knives (FIG.
  • Th9 elevators 6tl have a fiat portion 62 for engaging 4 the cards.
  • Each elevator arm '60 isfixed to a shaft'64.
  • Also fixed to the shaft 64 is a link 66 which is adapted to rotate the shaft 64 and, of course, in turn actuate the arms 60.
  • the link 66 is in turn pivotally connected to a clevis 68 which is in turn mounted on the rod 70.
  • throat barriers 72 mounted on opposite sides of the throat block 52 best seen in FIG. 4.
  • the throat barrier 7 2' is mounted on a pin 74.
  • the pin 74' is'slidably mounted in a bushing or the like 76 which forms an abutment for a collar 78 fixed to the pin 74.
  • the other end of the pin 74 is slidably mounted in a slot 80 positioned in a platform 81 positioned on the link arm 82.
  • the pin" 74 is driven upwardly by a spring 79 positioned between the collar 78 and the platforr'n 81-.
  • a-pin' 84 shown-positioned on'the underside of theplatform 81 from the s ring 78. Therefore, when the arm 82 is actuatedupwar'dly;the'platfoi m 81 engages the spring 79'to drive the collar 78 and pin 74 upwardly so as to urge the throat barrierlupwardly.
  • the bushing 76 forms an abutment for the upwardmevement of the pin and barrier 72'.
  • the spring 79 is sufliciently flexibleto be compressed so that thethroat barrierwill not puncture the card.
  • the platform 81 engages the pin 84 to pull the pin 74 and throat barrier 72 downwardly.
  • linkage means are provided to connect the arm 82 to the shaft 84.
  • Such a linkage means can-be in the formof a sector gear arrangement for driving the shaft 84 wherein one sector 86 is fixed to the shaft 64 and the mating sector 88 is fixed to the shaft 84.
  • other linkage arrangements could be used just as effectively. Therefore, whenever the link 66 is actuated, the shaft 64Will be actuated and in turn operate both the elevator-arm 60 and the sectors' 86 and 88 tosimulta'neously drive the throat barrier 72.
  • the rod 70 is' slidably mounted in a housing 90.
  • the housing is constructed of two identical cases each having a cavity 92.
  • a diaphragm 94 which is" held in place by clamping between the two casings.
  • the diaphragm'must not be too flexible yet not too” stifil
  • the diaphragm is constructed of a rubber portion clamped between the casings 90. Washers 98 are clamped to boths'ides' of the rubber diaphragm and are. secured to the shaft or rod 70. This construction forms a rubber sandwich.
  • Ports 100 and 102 are provided to permit the entrance of air under pressure into one or the other side of the diaphragm, or extraction therefrom.
  • an airp'u'mp10'6 which normally supplies a vacuum to the ports 58 in the picker knife. and the ports 54'inthe'throat block,.is utilized.
  • Thevacuum is created by the pump'106' being driven by a motor 104.
  • the vacuum pump 106" is'-provided with a vacuum port 108 and a pressure port 110.
  • the vacuumpump canb'e of any well-known type such as an impeller" or piston and cylinder type.
  • Normally vacuum is supplied to'the slots 54 and 58 through conduit 1'12 extending from the vacuum port 108 of the pump 106.
  • the pressure port 110' of the pump 106 is connected to the conduit 114 the diaphragm 94, the four-way valve 116 is positioned so that the pressure port 110' of the pump is exposed to one side of the diaphragm at 102 so as to provide air under pressure, and at the same time the vacuum from the vacuum port 108 of the pump 106 is applied to the other side of the diaphragm at 100 so as to provide maximum pressure differential.
  • the exhaust pressure of the pump is normally p.s.i., and the vacuum has been found to be approximately six inches of mercury. Six inches of mercury is approximately 3 p.s.i.
  • the normal switches are energized which start the motor 104 and the mechanism including the shaft 118 for oscillating the picker knife 16.
  • the four-way valve 116 is in a de-energized position so that the pressure port 110 is connected to the port 102 (as shown by arrows 120) and the vacuum port 108 is connected to the port 100 (as shown by arrows 122).
  • the two-Way valve 115 is positioned to cut off the vacuum being applied at the throat block and picker knife ports 54, 58.
  • the cards are held above the picker knife and throat gap until the file feed has delivered a suflicient number of cards to the hopper to start the machine feeding into the card transport section.
  • the valve 116 is then energized so that the pressure from the port 110 and the vacuum from the port 108 are reversed on the diaphragm to thereby restore the elevators 62 and the throat barrier 72 to their inoperative or retracted position.
  • the valve 115 is positioned so that the vacuum from the vacuum port 108 is connected to the slots 54 in the throat block 52 and the slots 58 in the picker knife.
  • the four-way valve 116 and two-way valve 115 are immediately actuated either automatically by means for sensing the jam, or, manually by pressing a valve switch.
  • This connects the conduit 112, 113 and vacuum port 108 to the conduit or port at 100 of the diaphragm housing, and the pressure port 110 of the pump to the port 102 so as to actuate the diaphragm, and in turn through the linkage arrangement, the elevator 62 and the throat barrier 72.
  • the throat barriers prevent the cards drifting into the throat and thereby decreases the number of cards involved in the jam.
  • a hopper containing a deck of cards and providing a throat, a picker knife movable back and forth for normally feeding successive cards singly along a defined path and through the throat, projection means normally retracted out of said path and operable into such path to shift the deck to a position in which the picker knife is unable to contact a card and the cards of the deck are out of alignment with the throat thereby to interrupt card feeding, means including a double-acting fluid pressure motor controlling operation of said projection means, a vacuum source, said picker knife having suction ports, and valve means normally positioned to connect the source to the suction ports to attract the card being fed and also connect the source to one side of said motor to cause the latter to maintain said projection means in its retracted position, said valve means being operable to another position to disestablish such connections and connect said source to the opposite side of said motor to actuate said projection means to deck-shifting position.
  • a mechanism for singly feeding cards from a deck means including a back-and-forth moving picker means and a stationary throat defining portions of a card feed path along which the cards normally are advanced successively by said picker means, projection means normally retracted out of said path and movable into said path to shift the deck to a position in which the cards are out of alignment with the throat and will not be contacted by said picker means, a vacuum source, means including a fluid pressure motor operatively connected to the projection means for controlling positioning of the projection means, first valve means for controlling connection of the source with suction ports in the picker means and at the throat, second valve means controlling connection of the source with the motor, and means operatively connecting said first and second valve means so that when the second valve means is positioned to cause said motor to operatively actuate said projection means to deck-shifting position said first valve means will be operated to cut off the source from said suction ports.

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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)
US786665A 1958-12-30 1958-12-30 Card feed interruption Expired - Lifetime US3002750A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
NL246896D NL246896A (fr) 1958-12-30
US786665A US3002750A (en) 1958-12-30 1958-12-30 Card feed interruption
US783921A US3002751A (en) 1958-12-30 1958-12-30 Card feeding machine
US783941A US3007696A (en) 1958-12-30 1958-12-30 Card arrester
FR813056A FR1260018A (fr) 1958-12-30 1959-12-15 Mécanisme d'alimentation en cartes
CH8237259A CH379175A (de) 1958-12-30 1959-12-28 Einrichtung zum Vereinzeln von eine Aufzeichnung tragenden Karten
GB4419959A GB919623A (en) 1958-12-30 1959-12-30 Improvements in card feed mechanisms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US786665A US3002750A (en) 1958-12-30 1958-12-30 Card feed interruption

Publications (1)

Publication Number Publication Date
US3002750A true US3002750A (en) 1961-10-03

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Application Number Title Priority Date Filing Date
US786665A Expired - Lifetime US3002750A (en) 1958-12-30 1958-12-30 Card feed interruption

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Country Link
US (1) US3002750A (fr)
FR (1) FR1260018A (fr)
NL (1) NL246896A (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081945A (en) * 1976-11-15 1978-04-04 The Mead Corporation Packaging machine for use with cartons of different sizes with minimum adjustment
EP0074470A1 (fr) * 1981-09-16 1983-03-23 Bernhard Brüne Méthode et dispositif pour l'acquisition automatique des données
WO1990002091A1 (fr) * 1988-08-26 1990-03-08 Datacard Corporation Appareil d'alimentation a tremie
US11529169B2 (en) 2012-09-28 2022-12-20 Covidien Lp Optical trocar visualization system and apparatus
US11642153B2 (en) 2020-03-19 2023-05-09 Covidien Lp Instrument seal for surgical access assembly
US11717321B2 (en) 2020-04-24 2023-08-08 Covidien Lp Access assembly with retention mechanism

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US958764A (en) * 1909-12-14 1910-05-24 Internat Engineering Company Ltd Apparatus for delivering sheets of paper one by one from a pile.
US1432032A (en) * 1921-10-01 1922-10-17 Smithe Machine Co Inc F L Safety stop for blank pickers
US2151177A (en) * 1937-10-22 1939-03-21 Remington Rand Inc Tabulator drive control
US2192616A (en) * 1938-05-06 1940-03-05 Ibm Keyboard actuator
US2327172A (en) * 1940-01-11 1943-08-17 Robert H Mcclintic Pneumatic actuating mechanism for electrically operated typewriters
US2705143A (en) * 1954-03-10 1955-03-29 Henry B Greenwood Skip-feed mechanism

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US958764A (en) * 1909-12-14 1910-05-24 Internat Engineering Company Ltd Apparatus for delivering sheets of paper one by one from a pile.
US1432032A (en) * 1921-10-01 1922-10-17 Smithe Machine Co Inc F L Safety stop for blank pickers
US2151177A (en) * 1937-10-22 1939-03-21 Remington Rand Inc Tabulator drive control
US2192616A (en) * 1938-05-06 1940-03-05 Ibm Keyboard actuator
US2327172A (en) * 1940-01-11 1943-08-17 Robert H Mcclintic Pneumatic actuating mechanism for electrically operated typewriters
US2705143A (en) * 1954-03-10 1955-03-29 Henry B Greenwood Skip-feed mechanism

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4081945A (en) * 1976-11-15 1978-04-04 The Mead Corporation Packaging machine for use with cartons of different sizes with minimum adjustment
EP0074470A1 (fr) * 1981-09-16 1983-03-23 Bernhard Brüne Méthode et dispositif pour l'acquisition automatique des données
WO1990002091A1 (fr) * 1988-08-26 1990-03-08 Datacard Corporation Appareil d'alimentation a tremie
US5009411A (en) * 1988-08-26 1991-04-23 Datacard Corporation Input hopper apparatus
US11529169B2 (en) 2012-09-28 2022-12-20 Covidien Lp Optical trocar visualization system and apparatus
US11642153B2 (en) 2020-03-19 2023-05-09 Covidien Lp Instrument seal for surgical access assembly
US11717321B2 (en) 2020-04-24 2023-08-08 Covidien Lp Access assembly with retention mechanism

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Publication number Publication date
FR1260018A (fr) 1961-05-05
NL246896A (fr)

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