GB1355781A - Apparatus for detecting postage stamps - Google Patents

Apparatus for detecting postage stamps

Info

Publication number
GB1355781A
GB1355781A GB1359072A GB1359072A GB1355781A GB 1355781 A GB1355781 A GB 1355781A GB 1359072 A GB1359072 A GB 1359072A GB 1359072 A GB1359072 A GB 1359072A GB 1355781 A GB1355781 A GB 1355781A
Authority
GB
United Kingdom
Prior art keywords
serrations
photo
detector
stamp
tuned
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
GB1359072A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1355781A publication Critical patent/GB1355781A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C3/00—Sorting according to destination
    • B07C3/10—Apparatus characterised by the means used for detection ofthe destination
    • B07C3/14—Apparatus characterised by the means used for detection ofthe destination using light-responsive detecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C1/00—Measures preceding sorting according to destination
    • B07C1/20—Sorting according to orientation, e.g. according to position of stamp

Landscapes

  • Sorting Of Articles (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

1355781 Photo-electric detection of postage stamps H HUDLER 23 March 1972 [30 March 1971] 13590/72 Heading G1A Postage stamps on items of mail are detected photo-electrically by scanning the stamp serrations. Light from a source 3 is incident at grazing incidence on the letter, moved at constant velocity V on belt 1. The photo-detector nears the light reflected from the edges of the serrations via a slit, which is oriented parallel to the illuminated sides of the serrations. Alternatively, to avoid errors due to the letter-detector distance variations, two crossed cylindrical lenses may be used with a slit in front of the detector, Figs. 2b, 2c (not shown). To cover the area within which under international regulations the stamp should be stuck, a staggered array of photo-cells may be used, connected with respective circuits to an OR-gate which operates a switch to allow only the photo-cell output which corresponds to detection of serrations to pass, Fig.4 (not shown). The output circuit of the (or each) detector 4 comprises an amplifier tuned to the frequency which will be generated by the passage of serrations across the field of view of the detector. When the amplitude of the amplifier is above a certain threshold (A) Figs. 5a-c (not shown) and it lasts above this threshold for a certain duration (until B) as tuned by a timer 6, in the form of a resistance-capacitance integrator circuit, or a counter of a preset member of pulses, it is evident that a stamp has been detected and switch 8 is actuated. Shorter interference pulses either do not reach threshold A or do not last as long as B. The detection device is orientable to be able to detect the brightest reflections, and the light source is rotatable in correspondence. If stamps have different serration pitches e.g. in accordance with value, a plurality of amplifiers tuned to different frequencies are used and checking and sorting according to value is possible.
GB1359072A 1971-03-30 1972-03-23 Apparatus for detecting postage stamps Expired GB1355781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT269171A AT306412B (en) 1971-03-30 1971-03-30 Device for machine recognition of unprepared postage stamps

Publications (1)

Publication Number Publication Date
GB1355781A true GB1355781A (en) 1974-06-05

Family

ID=3538756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1359072A Expired GB1355781A (en) 1971-03-30 1972-03-23 Apparatus for detecting postage stamps

Country Status (6)

Country Link
US (1) US3780310A (en)
AT (1) AT306412B (en)
BE (1) BE781441A (en)
DE (1) DE2215140C3 (en)
GB (1) GB1355781A (en)
IT (1) IT950721B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2403132R1 (en) * 2011-08-31 2013-07-04 Rubio Claudio Garcia TOOTH PHOTOELECTRIC METER

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT355358B (en) * 1978-06-06 1980-02-25 Hudler Heinz DEVICE FOR MACHINE DETECTION OF PERFORATED, NOT PREPARED STAMPS
US4782238A (en) * 1987-10-20 1988-11-01 Eastman Kodak Company Apparatus for generating edge position signals for use in locating an address element on a mailpiece
JPH01131968A (en) * 1987-11-17 1989-05-24 Nec Corp Stamp detector
GB8830422D0 (en) * 1988-12-30 1989-03-01 Alcatel Business Systems Postage stamp and dispensing system therefor
US5150175A (en) * 1991-03-13 1992-09-22 American Research Corporation Of Virginia Optical imaging system for fabric seam detection
DE4222908C2 (en) * 1992-07-11 1994-11-17 Licentia Gmbh Process for localizing address areas on postal items
JP4281321B2 (en) * 2002-10-15 2009-06-17 日本電気株式会社 Non-standard-size mail sorting, sorting and stamping processing equipment
AT501375B1 (en) * 2005-01-27 2007-04-15 Oelzant Helmuth Ing STAMP DETECTION DEVICE

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2936886A (en) * 1954-10-05 1960-05-17 Reed Res Inc Stamp sensing letter sorter
US2908825A (en) * 1956-12-10 1959-10-13 Midwest Automatic Control Co Photoelectric counter
GB1066841A (en) * 1963-01-14 1967-04-26 Douglas William Ballantyne Mui Improvements in or relating to gauging apparatus
US3414732A (en) * 1965-10-19 1968-12-03 Milgo Electronic Corp Counter for folded paper objects
US3488511A (en) * 1966-10-25 1970-01-06 Tokyo Shibaura Electric Co Automatic identifying apparatus of postage stamp indications
CH482252A (en) * 1969-04-16 1969-11-30 Landis & Gyr Ag Method and device for the detection of a surface structure with a preferred optical direction, in particular for the detection of gravure printing for checking the authenticity of banknotes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2403132R1 (en) * 2011-08-31 2013-07-04 Rubio Claudio Garcia TOOTH PHOTOELECTRIC METER
US8717554B2 (en) 2011-08-31 2014-05-06 Claudio GARCIA RUBIO Photoelectric meter for stamps perforations

Also Published As

Publication number Publication date
IT950721B (en) 1973-06-20
DE2215140B2 (en) 1974-12-05
US3780310A (en) 1973-12-18
DE2215140A1 (en) 1972-10-05
BE781441A (en) 1972-10-02
AT306412B (en) 1973-04-10
DE2215140C3 (en) 1975-08-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee