GB930692A - Improvements in automatic gas shut-off valves - Google Patents

Improvements in automatic gas shut-off valves

Info

Publication number
GB930692A
GB930692A GB414661A GB414661A GB930692A GB 930692 A GB930692 A GB 930692A GB 414661 A GB414661 A GB 414661A GB 414661 A GB414661 A GB 414661A GB 930692 A GB930692 A GB 930692A
Authority
GB
United Kingdom
Prior art keywords
pivoted
arms
links
valves
arm
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
GB414661A
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.)
BLACKMAN KEITH Ltd
Original Assignee
BLACKMAN KEITH 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 BLACKMAN KEITH Ltd filed Critical BLACKMAN KEITH Ltd
Priority to GB414661A priority Critical patent/GB930692A/en
Publication of GB930692A publication Critical patent/GB930692A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves

Abstract

930,692. Valves. KEITH BLACKMAN Ltd., and E. E. TAVENER. May 2, 1962 [Feb. 3, 1961], No. 4146/61. Class 135. A gas-shut-off valve in which flow between an inlet 11, Fig. 1, and an outlet 12 is controlled by a diaphragm 18 loaded by a weight 19 or a spring. This loading is always augmented by a spring 24 between the outer ends of two arms 21 pivoted on the diaphragm cover, which arms are connected by a toggle comprising two links 22 each pivoted on a separate one of the arms 21 and joined to a plunger 23 abutting the weight 19. A leak 15 may permanently interconnect the inlet and outlet; the leak may be replaced by a tube 13 embodying a manual valve 14. In a modification, one arm only is pivoted, which arm 21, Fig. 4, is rotatably connected to another link 29 attached to the plunger, the joint between these links incorporating a roller 27 which acts as a follower for a cam 26 supported by the fixed arm 21. The cam may be replaced by links as in Fig. 1.
GB414661A 1961-02-03 1961-02-03 Improvements in automatic gas shut-off valves Expired GB930692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB414661A GB930692A (en) 1961-02-03 1961-02-03 Improvements in automatic gas shut-off valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB414661A GB930692A (en) 1961-02-03 1961-02-03 Improvements in automatic gas shut-off valves

Publications (1)

Publication Number Publication Date
GB930692A true GB930692A (en) 1963-07-10

Family

ID=9771622

Family Applications (1)

Application Number Title Priority Date Filing Date
GB414661A Expired GB930692A (en) 1961-02-03 1961-02-03 Improvements in automatic gas shut-off valves

Country Status (1)

Country Link
GB (1) GB930692A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125402A (en) * 1985-11-15 1992-06-30 National Research Development Corporation Powered respirators
CZ304401B6 (en) * 2012-01-19 2014-04-16 První Brněnská Strojírna Velká Bíteš, A. S. Fuel nozzle controller with bypass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125402A (en) * 1985-11-15 1992-06-30 National Research Development Corporation Powered respirators
CZ304401B6 (en) * 2012-01-19 2014-04-16 První Brněnská Strojírna Velká Bíteš, A. S. Fuel nozzle controller with bypass

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