GB1555706A - Filament bend testing - Google Patents

Filament bend testing

Info

Publication number
GB1555706A
GB1555706A GB4520776A GB4520776A GB1555706A GB 1555706 A GB1555706 A GB 1555706A GB 4520776 A GB4520776 A GB 4520776A GB 4520776 A GB4520776 A GB 4520776A GB 1555706 A GB1555706 A GB 1555706A
Authority
GB
United Kingdom
Prior art keywords
fibre
bend
cone
groove
bend testing
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
GB4520776A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB4520776A priority Critical patent/GB1555706A/en
Priority to AU30114/77A priority patent/AU3011477A/en
Priority to CH1314077A priority patent/CH630728A5/en
Publication of GB1555706A publication Critical patent/GB1555706A/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
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/26—Investigating twisting or coiling properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/08—Testing mechanical properties
    • G01M11/088—Testing mechanical properties of optical fibres; Mechanical features associated with the optical testing of optical fibres
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/36—Textiles
    • G01N33/365—Textiles filiform textiles, e.g. yarns

Abstract

In order to achieve a pure bend stressing in one plane in a method of bend testing a fibre by repeatedly winding-on and unwinding a weight-loaded fibre section (12), the bend-test device has a cone (10) as winding mandrel whose axis of rotation (14) is inclined to the horizontal at an angle which is equal to the pitch angle of a groove (18) incorporated in the mandrel so that the weight-loaded fibre always enters the groove in a vertical part. The fibre is fixed to the cone on one end of the groove by means of a clamp (19) and can be brought out through a bore in the axis (14) so that if the test piece is an optical fibre, the attenuation of the fibre, for example, can be measured during the bend testing. The cone (10) is driven by a motor (11), and sensors (24, 25) determine when the end positions have been reached and reverse the direction of rotation. <IMAGE>
GB4520776A 1976-10-29 1976-10-29 Filament bend testing Expired GB1555706A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB4520776A GB1555706A (en) 1976-10-29 1976-10-29 Filament bend testing
AU30114/77A AU3011477A (en) 1976-10-29 1977-10-27 Filament bend-testing
CH1314077A CH630728A5 (en) 1976-10-29 1977-10-28 Bend-test device for a fibre and method of operating it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4520776A GB1555706A (en) 1976-10-29 1976-10-29 Filament bend testing

Publications (1)

Publication Number Publication Date
GB1555706A true GB1555706A (en) 1979-11-14

Family

ID=10436300

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4520776A Expired GB1555706A (en) 1976-10-29 1976-10-29 Filament bend testing

Country Status (3)

Country Link
AU (1) AU3011477A (en)
CH (1) CH630728A5 (en)
GB (1) GB1555706A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU651687B2 (en) * 1991-05-20 1994-07-28 Sumitomo Electric Industries, Ltd. Method for screening optical fiber and apparatus for carrying out method
CN103076240A (en) * 2012-12-20 2013-05-01 苏州希普拉斯新材料有限公司 Rubber and plastic material cracking resistance testing device
CN110320113A (en) * 2019-07-19 2019-10-11 三峡大学 A kind of interface Tu Yan undisturbed sample torsion shear apparatus and method
CN115266044A (en) * 2022-09-23 2022-11-01 国网湖北省电力有限公司 Photoelectric test fixture and early warning method thereof
CN116609204A (en) * 2023-07-11 2023-08-18 四川科润汇鑫新材料科技有限公司 Fiber board bending test device and method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU651687B2 (en) * 1991-05-20 1994-07-28 Sumitomo Electric Industries, Ltd. Method for screening optical fiber and apparatus for carrying out method
CN103076240A (en) * 2012-12-20 2013-05-01 苏州希普拉斯新材料有限公司 Rubber and plastic material cracking resistance testing device
CN103076240B (en) * 2012-12-20 2015-08-05 苏州希普拉斯新材料有限公司 Rubber-plastics material cracking resistance proving installation
CN110320113A (en) * 2019-07-19 2019-10-11 三峡大学 A kind of interface Tu Yan undisturbed sample torsion shear apparatus and method
CN110320113B (en) * 2019-07-19 2021-08-31 三峡大学 Soil-rock interface undisturbed sample torsional shear test device and method
CN115266044A (en) * 2022-09-23 2022-11-01 国网湖北省电力有限公司 Photoelectric test fixture and early warning method thereof
CN115266044B (en) * 2022-09-23 2022-12-23 国网湖北省电力有限公司 Photoelectric test fixture and early warning method thereof
CN116609204A (en) * 2023-07-11 2023-08-18 四川科润汇鑫新材料科技有限公司 Fiber board bending test device and method
CN116609204B (en) * 2023-07-11 2023-09-26 四川科润汇鑫新材料科技有限公司 Fiber board bending test device and method

Also Published As

Publication number Publication date
CH630728A5 (en) 1982-06-30
AU3011477A (en) 1979-05-03

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee