GB910903A - Fluid-pressure-operated relief valve - Google Patents

Fluid-pressure-operated relief valve

Info

Publication number
GB910903A
GB910903A GB4223959A GB4223959A GB910903A GB 910903 A GB910903 A GB 910903A GB 4223959 A GB4223959 A GB 4223959A GB 4223959 A GB4223959 A GB 4223959A GB 910903 A GB910903 A GB 910903A
Authority
GB
United Kingdom
Prior art keywords
fluid
pressure
relief valve
operated relief
dec
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
GB4223959A
Inventor
Edward Francis Herbert Hillie
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB4223959A priority Critical patent/GB910903A/en
Publication of GB910903A publication Critical patent/GB910903A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves

Abstract

910,903. Pipe couplings. DOWTY MINING EQUIPMENT Ltd. Dec. 6, 1960 [Dec. 11. 1959], No. 42239/59. Class 99(1). [Also in Group XXIX] To pressurise a pit prop 1, Fig. 1, a pressure line connector is applied to the right end of housing 2 and thereby shifts a check valve 17 which moves a pin 13 to lift a ball valve 8 off a diaphragm spring seat 3.
GB4223959A 1959-12-11 1959-12-11 Fluid-pressure-operated relief valve Expired GB910903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4223959A GB910903A (en) 1959-12-11 1959-12-11 Fluid-pressure-operated relief valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4223959A GB910903A (en) 1959-12-11 1959-12-11 Fluid-pressure-operated relief valve

Publications (1)

Publication Number Publication Date
GB910903A true GB910903A (en) 1962-11-21

Family

ID=10423495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4223959A Expired GB910903A (en) 1959-12-11 1959-12-11 Fluid-pressure-operated relief valve

Country Status (1)

Country Link
GB (1) GB910903A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317467A (en) * 1980-07-10 1982-03-02 Illinois Tool Works Inc. Two-way pressure relief valve
CN108278388A (en) * 2015-11-23 2018-07-13 吴红平 The preferable two-position two-way solenoid valve of voltage regulation result and its working method
CN108591150A (en) * 2015-11-23 2018-09-28 朱保生 The preferable two-position two-way solenoid valve of voltage regulation result and its working method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317467A (en) * 1980-07-10 1982-03-02 Illinois Tool Works Inc. Two-way pressure relief valve
CN108278388A (en) * 2015-11-23 2018-07-13 吴红平 The preferable two-position two-way solenoid valve of voltage regulation result and its working method
CN108591150A (en) * 2015-11-23 2018-09-28 朱保生 The preferable two-position two-way solenoid valve of voltage regulation result and its working method

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