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GB864035A - Improvements relating to gauging the thickness of travelling film - Google Patents

Improvements relating to gauging the thickness of travelling film

Info

Publication number
GB864035A
GB864035A GB3416357A GB3416357A GB864035A GB 864035 A GB864035 A GB 864035A GB 3416357 A GB3416357 A GB 3416357A GB 3416357 A GB3416357 A GB 3416357A GB 864035 A GB864035 A GB 864035A
Authority
GB
United Kingdom
Prior art keywords
roll
nozzle
gauging
film
thickness
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
GB3416357A
Inventor
Henry Hans Allen
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.)
Acordis UK Ltd
Original Assignee
British Celanese 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 British Celanese Ltd filed Critical British Celanese Ltd
Priority to GB3416357A priority Critical patent/GB864035A/en
Publication of GB864035A publication Critical patent/GB864035A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B13/00—Measuring arrangements characterised by the use of fluids
    • G01B13/02—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness
    • G01B13/06—Measuring arrangements characterised by the use of fluids for measuring length, width or thickness for measuring thickness
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
    • G01B5/06—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness
    • G01B5/068—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness for measuring thickness of objects while moving
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/32—Details specially adapted for motion-picture projection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding Of Webs (AREA)

Abstract

864,035. Pneumatic gauging. BRITISH CELANESE Ltd. Nov. 1, 1957, No. 34163/57. Class 106 (2). Apparatus for gauging the thickness of film 13 whilst it is travelling comprises a cylindrical roll 10 and a pneumatic proximity gauge, the nozzle 22 of which forms part of a rigid structure 19, 20, having feet 29 adapted to contact the film 13 where it is running over the roll 10 and serving to position the structure 19, 20, so that the air jet is always directed substantially along a diameter of the roll, and the nozzle 22 is maintained at a substantially constant distance from the surface of the roll 10, in spite of any slight eccentricity of the roll. The structure 19, 20 is supported by leaf springs 17 from a carriage 15 able to move parallel to the axis of the roll 10. The pins 28 carrying the feet 29 are axially adjustable, being locked in position by screws 31, and the nozzle 22 is also adjustable, being locked in position by screw 26. The pressure variations in the air flowing through the nozzle 22 may be indicated by a single pressure gauge or by a differential system using a fixed reference orifice in parallel with the nozzle 22, differential pressures only being indicated or recorded.
GB3416357A 1957-11-01 1957-11-01 Improvements relating to gauging the thickness of travelling film Expired GB864035A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3416357A GB864035A (en) 1957-11-01 1957-11-01 Improvements relating to gauging the thickness of travelling film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3416357A GB864035A (en) 1957-11-01 1957-11-01 Improvements relating to gauging the thickness of travelling film

Publications (1)

Publication Number Publication Date
GB864035A true GB864035A (en) 1961-03-29

Family

ID=10362181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3416357A Expired GB864035A (en) 1957-11-01 1957-11-01 Improvements relating to gauging the thickness of travelling film

Country Status (1)

Country Link
GB (1) GB864035A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113804083A (en) * 2021-09-25 2021-12-17 华能澜沧江水电股份有限公司 Tile key thickness measurement and calibration device and method for adjusting tile gap
CN116026261A (en) * 2023-03-30 2023-04-28 钛玛科（北京）工业科技有限公司 Method and device for measuring thickness of sheet membrane by utilizing pressure difference change

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113804083A (en) * 2021-09-25 2021-12-17 华能澜沧江水电股份有限公司 Tile key thickness measurement and calibration device and method for adjusting tile gap
CN116026261A (en) * 2023-03-30 2023-04-28 钛玛科（北京）工业科技有限公司 Method and device for measuring thickness of sheet membrane by utilizing pressure difference change

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