GB1274449A - Sorting apparatus and a method of sorting - Google Patents

Sorting apparatus and a method of sorting

Info

Publication number
GB1274449A
GB1274449A GB4940269A GB4940269A GB1274449A GB 1274449 A GB1274449 A GB 1274449A GB 4940269 A GB4940269 A GB 4940269A GB 4940269 A GB4940269 A GB 4940269A GB 1274449 A GB1274449 A GB 1274449A
Authority
GB
United Kingdom
Prior art keywords
amplifier
oct
sorting
photodiode
division
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
GB4940269A
Inventor
John Barry Watson
William Storey Maughan
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.)
Gunsons Sortex Ltd
Original Assignee
Gunsons Sortex Ltd
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 Gunsons Sortex Ltd filed Critical Gunsons Sortex Ltd
Priority to GB4940269A priority Critical patent/GB1274449A/en
Publication of GB1274449A publication Critical patent/GB1274449A/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
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • B07C5/3425—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain
    • B07C5/3427—Sorting according to other particular properties according to optical properties, e.g. colour of granular material, e.g. ore particles, grain by changing or intensifying the optical properties prior to scanning, e.g. by inducing fluorescence under UV or x-radiation, subjecting the material to a chemical reaction
    • 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
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/04—Sorting according to size
    • B07C5/10—Sorting according to size measured by light-responsive means

Landscapes

  • Amplifiers (AREA)

Abstract

1,274,449. Transistor switching circuits. GUNSONS SORTEX Ltd. 7 Oct., 1970 [8 Oct., 1969], No. 49402/62. Heading H3T. [Also in Division G4] When a photodiode 20 (Fig. 4) in sorting apparatus (see Division G4) detects radiation a leakage current flows from a power supply 99 into the virtual earth, established at the photodiode anode by field effect transistors 84, 86, amplify 92 and feedback elements 96, 98. This results in a negative signal at the output of amplifier 92, which after amplification, drives switching amplifier 95 into saturation at one end of its dynamic range. When no radiation is detected the amplifier 95 is saturated at the other end of its range. Compensation for the zero signal offset voltage is effected by means of potentiometer 100.
GB4940269A 1969-10-08 1969-10-08 Sorting apparatus and a method of sorting Expired GB1274449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4940269A GB1274449A (en) 1969-10-08 1969-10-08 Sorting apparatus and a method of sorting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4940269A GB1274449A (en) 1969-10-08 1969-10-08 Sorting apparatus and a method of sorting

Publications (1)

Publication Number Publication Date
GB1274449A true GB1274449A (en) 1972-05-17

Family

ID=10452225

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4940269A Expired GB1274449A (en) 1969-10-08 1969-10-08 Sorting apparatus and a method of sorting

Country Status (1)

Country Link
GB (1) GB1274449A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458804A1 (en) * 1979-06-05 1981-01-02 Hanusse Gerard Appts. to measure and control liq. flow rate - counts and measures drops released by dropper nozzle
FR2498089A1 (en) * 1981-01-22 1982-07-23 Rech Geolog Miniere METHOD AND APPARATUS FOR AUTOMATICALLY SORTING PACKAGING MIXTURES AND THE LIKE USED OR NOT
GB2174195A (en) * 1985-04-25 1986-10-29 Developia Systems Ab An arrangement and a method for the measurement of the weights and/or dimensions and/or volumes of articles
EP0208363A1 (en) * 1985-07-12 1987-01-14 Metallgesellschaft Ag Device for sorting scrap
EP0358627A2 (en) * 1988-09-06 1990-03-14 Reinhold Hakansson A method and apparatus for grading objects in accordance to size
US4914672A (en) * 1988-07-14 1990-04-03 Embrex, Inc. Method and apparatus of distinguishing between live and dead poultry eggs
US5010247A (en) * 1988-10-07 1991-04-23 Spandrel Establishment Method of classifying objects according to shape
US5178023A (en) * 1990-03-14 1993-01-12 Robert Bosch Gmbh Method and apparatus for sealing a packaging container overpressure valve
US5206699A (en) * 1988-05-06 1993-04-27 Gersan Establishment Sensing a narrow frequency band of radiation and gemstones
NL9300596A (en) * 1993-04-05 1994-11-01 Aweta Bv Method and device for measuring shape parameters of objects.
WO2006000001A1 (en) * 2004-06-29 2006-01-05 Binder + Co. Ag Detection device for identifying objects in a material stream

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2458804A1 (en) * 1979-06-05 1981-01-02 Hanusse Gerard Appts. to measure and control liq. flow rate - counts and measures drops released by dropper nozzle
FR2498089A1 (en) * 1981-01-22 1982-07-23 Rech Geolog Miniere METHOD AND APPARATUS FOR AUTOMATICALLY SORTING PACKAGING MIXTURES AND THE LIKE USED OR NOT
EP0057139A2 (en) * 1981-01-22 1982-08-04 Bureau De Recherches Geologiques Et Minieres Method and device for sorting mixtures of packages and similar goods, whether or not used
EP0057139A3 (en) * 1981-01-22 1982-08-25 Bureau De Recherches Geologiques Et Minieres Method and device for sorting mixtures of packages and similar goods, whether or not used
GB2174195A (en) * 1985-04-25 1986-10-29 Developia Systems Ab An arrangement and a method for the measurement of the weights and/or dimensions and/or volumes of articles
EP0208363A1 (en) * 1985-07-12 1987-01-14 Metallgesellschaft Ag Device for sorting scrap
US5206699A (en) * 1988-05-06 1993-04-27 Gersan Establishment Sensing a narrow frequency band of radiation and gemstones
US4914672A (en) * 1988-07-14 1990-04-03 Embrex, Inc. Method and apparatus of distinguishing between live and dead poultry eggs
EP0358627A2 (en) * 1988-09-06 1990-03-14 Reinhold Hakansson A method and apparatus for grading objects in accordance to size
EP0358627A3 (en) * 1988-09-06 1992-08-12 Reinhold Hakansson A method and apparatus for grading objects in accordance to size
US5010247A (en) * 1988-10-07 1991-04-23 Spandrel Establishment Method of classifying objects according to shape
US5178023A (en) * 1990-03-14 1993-01-12 Robert Bosch Gmbh Method and apparatus for sealing a packaging container overpressure valve
NL9300596A (en) * 1993-04-05 1994-11-01 Aweta Bv Method and device for measuring shape parameters of objects.
WO2006000001A1 (en) * 2004-06-29 2006-01-05 Binder + Co. Ag Detection device for identifying objects in a material stream
US7639352B2 (en) 2004-06-29 2009-12-29 Binder + Co. Ag Detection device for identifying objects in a material stream

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees