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GB1342656A - Multiple sheet detection system - Google Patents

Multiple sheet detection system

Info

Publication number
GB1342656A
GB1342656A GB2600971*A GB2600971A GB1342656A GB 1342656 A GB1342656 A GB 1342656A GB 2600971 A GB2600971 A GB 2600971A GB 1342656 A GB1342656 A GB 1342656A
Authority
GB
United Kingdom
Prior art keywords
circuit means
signal
april
photo
output signal
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
GB2600971*A
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.)
Xerox Corp
Original Assignee
Xerox 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 Xerox Corp filed Critical Xerox Corp
Publication of GB1342656A publication Critical patent/GB1342656A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/70—Detecting malfunctions relating to paper handling, e.g. jams
    • G03G15/703—Detecting multiple sheets
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Controlling Sheets Or Webs (AREA)

Abstract

1342656 Photo-electric apparatus XEROX CORP 19 April 1971 [6 April 1970] 26009/71 Heading G1A Sheets separated from the tops of a plurality of poles and fed over plates 45, Figs. 1 and 2, to a xerographic copying machine 20 pass a detection station comprising a lamp DS1 and a photo-electric element V1 to detect the presence of two superposed sheets, the plates 45 being apertured to allow the passage of light, and the element V1 producing an output signal to machine control when double feed is detected. An electronic circuit (see Division G1) controlled by the element V1 comprises first circuit means to generate electrical signals representative of sheet feed condition, second circuit means to store a process signal supplied from the first circuit means and third circuit means to compare the stored signal with a succeeding signal to generate an output signal when double feed occurs.
GB2600971*A 1970-04-06 1971-04-19 Multiple sheet detection system Expired GB1342656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2576670A 1970-04-06 1970-04-06

Publications (1)

Publication Number Publication Date
GB1342656A true GB1342656A (en) 1974-01-03

Family

ID=21827953

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2600971*A Expired GB1342656A (en) 1970-04-06 1971-04-19 Multiple sheet detection system

Country Status (7)

Country Link
US (1) US3614419A (en)
BE (1) BE765366A (en)
CA (1) CA930052A (en)
DE (1) DE2116803A1 (en)
FR (1) FR2089733A5 (en)
GB (1) GB1342656A (en)
NL (1) NL7104413A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237378A (en) 1977-12-28 1980-12-02 Brandt-Pra, Inc. Photoelectric apparatus for document counting and overlap detection
GB2194040A (en) * 1986-07-23 1988-02-24 Ratby Eng Co Ltd Paper feed control apparatus

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873843A (en) * 1973-11-29 1975-03-25 Mohawk Data Sciences Corp Document detection apparatus
US4593533A (en) * 1974-12-05 1986-06-10 Alsenz Richard H Method and apparatus for detecting and controlling the formation of ice or frost
US4072854A (en) * 1975-07-30 1978-02-07 Glory Kogyo Kabushiki Kaisha Sheet counting apparatus
US4011447A (en) * 1976-02-09 1977-03-08 Henderson George R System for detecting the edges of a moving object employing a photocell and an amplifier in the saturation mode
US4353197A (en) * 1977-07-08 1982-10-12 Opex Corporation Content activated envelope extraction
US4124968A (en) * 1977-07-08 1978-11-14 Opex Corporation Content activated envelope extraction
DD135817B1 (en) * 1978-04-17 1981-09-30 Albrecht Johne Capacitive control and evaluation device
SE430547B (en) * 1979-07-26 1983-11-21 Lundblad Leif DEFINITION OF DOCUMENT OUTPUT
US4286149A (en) * 1979-08-09 1981-08-25 Ncr Canada Ltd - Ncr Canada Ltee Apparatus and method for detection of overlapping objects
US4398711A (en) * 1979-12-31 1983-08-16 Ncr Corporation Currency dispenser monitor
DE3270835D1 (en) * 1982-03-01 1986-06-05 Christian Pierre Bourg Sheet collator
DE3230524C2 (en) * 1982-08-17 1987-04-09 Agfa-Gevaert Ag, 5090 Leverkusen Device for detecting two or more superimposed film sheets
US4608704A (en) * 1982-11-10 1986-08-26 Brandt, Incorporated Method and apparatus for counting sheets which may be fed in skewed and/or overlapping fashion
US4707599A (en) * 1982-11-10 1987-11-17 Brandt, Incorporated Method and apparatus for counting sheets which may be fed in skewed and/or overlapping fashion
US4703172A (en) * 1982-11-10 1987-10-27 Brandt, Incorporated Method and apparatus for counting sheets which may be fed in skewed and/or overlapping fashion
DE3467887D1 (en) * 1984-01-24 1988-01-14 Komori Printing Mach Double sheet detection method and apparatus of sheet-fed rotary press
US4709914A (en) * 1985-02-07 1987-12-01 Brandt, Inc. Electronic controller for dispensers and the like
DE3565819D1 (en) * 1985-03-21 1988-12-01 Komori Printing Mach Double sheet detection method and apparatus of sheet-fed rotary press
US4798646A (en) * 1985-11-12 1989-01-17 Somar Corporation Film peeling apparatus having film end detector
JPS6365961A (en) * 1986-09-08 1988-03-24 シャープ株式会社 Document shredder
GB9315145D0 (en) * 1993-07-22 1993-09-08 Ncr Int Inc Apparatus for indicating the thickness of record media
US5659396A (en) * 1995-06-07 1997-08-19 Electrocom Automation L.P. Dichotomous scan system for detection of edges of objects and overlapped objects having relatively uniform surfaces
US5614710A (en) * 1995-06-07 1997-03-25 Electrocom Automation L.P. Dichotomous scan system for detection of overlapped objects
GB9723306D0 (en) * 1997-11-05 1998-01-07 Ncr Int Inc System for detecting superposed sheets
US6241244B1 (en) * 1997-11-28 2001-06-05 Diebold, Incorporated Document sensor for currency recycling automated banking machine
US6463824B1 (en) * 2000-02-29 2002-10-15 S-B Power Tool Company Right angle attachment for power hand tool
US8234845B2 (en) * 2006-04-27 2012-08-07 Pitney Bowes Inc. Method of sensing pack insertion at crease line of envelope
CN112317558B (en) * 2020-09-04 2023-01-17 中国第一汽车股份有限公司 Rapid electrical detection system and method for sheet number of stamping automatic line

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3026419A (en) * 1959-05-11 1962-03-20 Ibm Overlap detector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4237378A (en) 1977-12-28 1980-12-02 Brandt-Pra, Inc. Photoelectric apparatus for document counting and overlap detection
GB2194040A (en) * 1986-07-23 1988-02-24 Ratby Eng Co Ltd Paper feed control apparatus

Also Published As

Publication number Publication date
DE2116803A1 (en) 1971-10-28
NL7104413A (en) 1971-10-08
BE765366A (en) 1971-10-06
US3614419A (en) 1971-10-19
FR2089733A5 (en) 1972-01-07
CA930052A (en) 1973-07-10

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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