GB1368849A - Method and apparatus for detecting the presence of overlapped planar members - Google Patents

Method and apparatus for detecting the presence of overlapped planar members

Info

Publication number
GB1368849A
GB1368849A GB2576772A GB2576772A GB1368849A GB 1368849 A GB1368849 A GB 1368849A GB 2576772 A GB2576772 A GB 2576772A GB 2576772 A GB2576772 A GB 2576772A GB 1368849 A GB1368849 A GB 1368849A
Authority
GB
United Kingdom
Prior art keywords
switches
detecting
planar members
heading
loops
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
Application number
GB2576772A
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.)
Optical Recognition Systems Inc
Original Assignee
Optical Recognition Systems Inc
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 Optical Recognition Systems Inc filed Critical Optical Recognition Systems Inc
Publication of GB1368849A publication Critical patent/GB1368849A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • B65H7/06—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed
    • B65H7/12—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation
    • B65H7/125—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors responsive to presence of faulty articles or incorrect separation or feed responsive to double feed or separation sensing the double feed or separation without contacting the articles
    • 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
    • G06K13/06—Guiding cards; Checking correct operation of card-conveying mechanisms
    • G06K13/067—Checking presence, absence, correct position, or moving status of cards
    • 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
    • G06K7/02—Methods or arrangements for sensing record carriers, e.g. for reading patterns by pneumatic or hydraulic means, e.g. sensing punched holes with compressed air; by sonic means ; by ultrasonic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Controlling Sheets Or Webs (AREA)

Abstract

1368849 Feeding sheets OPTICAL RECOGNITION SYSTEMS Inc 2 June 1972 [11 Jan 1972] 25767/72 Heading B8R A double sheet feed is detected by each sheet 31, 32, closing a vacuum part 23, 24, causing two pressure responsive switches 13, 14, to change state and provide an output signal which may serve to stop the machine. In order to avoid a false response to a wrinkled document, circuitry is provided which requires that both switches 13, 14, be opened simultaneously for a predetermined minimum period of time before an output indication is produced. The loops 21, 22, in the fluid circuits prevent paper dust reaching the switches.
GB2576772A 1972-01-11 1972-06-02 Method and apparatus for detecting the presence of overlapped planar members Expired GB1368849A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21700472A 1972-01-11 1972-01-11

Publications (1)

Publication Number Publication Date
GB1368849A true GB1368849A (en) 1974-10-02

Family

ID=22809296

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2576772A Expired GB1368849A (en) 1972-01-11 1972-06-02 Method and apparatus for detecting the presence of overlapped planar members

Country Status (2)

Country Link
US (1) US3773321A (en)
GB (1) GB1368849A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6460528A (en) * 1987-08-31 1989-03-07 Juki Kk Cloth pickup device
DE4005910A1 (en) * 1990-02-24 1991-09-05 Heidelberger Druckmasch Ag ARC SEPARATOR IN A PRINTING MACHINE
US5437375A (en) * 1993-12-30 1995-08-01 Unisys Corporation Double-document detection systems
US5419546A (en) * 1994-02-15 1995-05-30 Unisys Corporation Double-document detection arrangement
US5439506A (en) * 1994-02-15 1995-08-08 Unisys Corporation Separation process for a check processor
GB9414540D0 (en) * 1994-07-19 1994-09-07 At & T Global Inf Solution Apparatus for assessing the condition of a bank note
US6086064A (en) * 1998-09-28 2000-07-11 Xerox Corporation Object position/presence sensor and method for detecting object position or presence
US6027113A (en) * 1998-10-29 2000-02-22 Banctec, Inc. Multiple document detection system
FR2807347B1 (en) * 2000-04-07 2002-05-24 Mannesmann Dematic Postal Automation Sa ACOUSTICAL PROCESS FOR DISCRIMINATION OF PAPER AND PLASTIC ENVELOPES
JP4775046B2 (en) * 2006-03-15 2011-09-21 コニカミノルタビジネステクノロジーズ株式会社 Paper conveying apparatus and image forming apparatus
FR2986447B1 (en) * 2012-02-02 2019-04-12 Solystic SINGLE FLAT OBJECT SORTING MACHINE WITH MULTIPLE SOCKET DETECTION
US9196503B2 (en) * 2012-08-23 2015-11-24 Michael Xiaoxuan Yang Methods for fabricating devices on semiconductor substrates

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2843882A (en) * 1955-06-08 1958-07-22 Us Rubber Co Evener
US2992822A (en) * 1958-10-24 1961-07-18 Burroughs Corp Multiple item detector for document handling machines
GB939269A (en) * 1960-10-15 1963-10-09 K D G Instr Ltd Improvements to thread measuring devices
US3504911A (en) * 1967-10-25 1970-04-07 Xerox Corp Vacuum powered multiple document detector
US3627303A (en) * 1969-05-07 1971-12-14 Harris Intertype Corp Machine control circuit

Also Published As

Publication number Publication date
US3773321A (en) 1973-11-20

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees