GB1091958A - Method of sorting objects - Google Patents

Method of sorting objects

Info

Publication number
GB1091958A
GB1091958A GB3039365A GB3039365A GB1091958A GB 1091958 A GB1091958 A GB 1091958A GB 3039365 A GB3039365 A GB 3039365A GB 3039365 A GB3039365 A GB 3039365A GB 1091958 A GB1091958 A GB 1091958A
Authority
GB
United Kingdom
Prior art keywords
penetrant
objects
bearings
sprays
photo
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
GB3039365A
Inventor
Wilfred Richard Cass
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 GB3039365A priority Critical patent/GB1091958A/en
Publication of GB1091958A publication Critical patent/GB1091958A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/91—Investigating the presence of flaws or contamination using penetration of dyes, e.g. fluorescent ink

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Sorting Of Articles (AREA)

Abstract

1,091,958. Photo-electric flow detection. GUNSON'S SORTEX Ltd. July 15, 1966 [July 16, 1965], No. 30393/65. Heading G1A. To sort imperfect objects having flaws in their otherwise impermeable surfaces from perfect ones, liquid penetrant is applied to all objects and is retained in the flaws upon its subsequent removal from the unflawed parts of the objects' surface: a photo-electric device by being responsive to light having a characteristic particular to that reflected by the penetrant then detects the flawed objects as it views each one in turn. The penetrant may be coloured with a fluorescent dye and be viewed under ultraviolet light, or the penetrant may have a colour readily distinguishable from the surface colour of the objects. The objects, which may be ball-bearings, are fed on to the upper run (2) of a conveyer by a loading device (3) comprising a pair of discs (4, 5) having peripheral holes. The bearings are de-greased by sprays (8) and the penetrant is supplied by sprays (6, 7) above and below the conveyer surface penetrant is washed off by sprays (9, 10). The bearings are dried by a heater (12) and talc or silica powder is directed on to them by sprays (15, 16) to absorb or adsorb penetrant from a flaw. Surplus powder is removed by compressed air through devices (17, 18) and the bearings drop from the end of the conveyer on to one of two slat conveyers (27, 28) in baths (25, 26) by passing through a photoelectric examining device (19), comprising an ultraviolet source and a pair of photo-cells (21, 22) which are connected to control a pneumatic separating device (24) directing the bearings into the appropriate bath. At least one of the photocells is responsive to the fluorescent light.
GB3039365A 1965-07-16 1965-07-16 Method of sorting objects Expired GB1091958A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3039365A GB1091958A (en) 1965-07-16 1965-07-16 Method of sorting objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3039365A GB1091958A (en) 1965-07-16 1965-07-16 Method of sorting objects

Publications (1)

Publication Number Publication Date
GB1091958A true GB1091958A (en) 1967-11-22

Family

ID=10306971

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3039365A Expired GB1091958A (en) 1965-07-16 1965-07-16 Method of sorting objects

Country Status (1)

Country Link
GB (1) GB1091958A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013036A1 (en) * 1978-11-02 1980-07-09 SKF Industrial Trading & Development Co, B.V. A method of optical inspection for surface defects and the use of apparatus for carrying out said method
GB2446865A (en) * 2007-02-21 2008-08-27 Dean William Dredge Temporary coating for revealing surface imperfections
CN113281347A (en) * 2021-05-14 2021-08-20 上海群力紧固件制造有限公司 Automatic permeation detection system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0013036A1 (en) * 1978-11-02 1980-07-09 SKF Industrial Trading & Development Co, B.V. A method of optical inspection for surface defects and the use of apparatus for carrying out said method
GB2446865A (en) * 2007-02-21 2008-08-27 Dean William Dredge Temporary coating for revealing surface imperfections
WO2008102126A1 (en) 2007-02-21 2008-08-28 Dean William Dredge Method and composition for surface coating
CN113281347A (en) * 2021-05-14 2021-08-20 上海群力紧固件制造有限公司 Automatic permeation detection system

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