GB704560A - Improvements in or relating to under-water valves for breathing apparatus - Google Patents

Improvements in or relating to under-water valves for breathing apparatus

Info

Publication number
GB704560A
GB704560A GB16278/51A GB1627851A GB704560A GB 704560 A GB704560 A GB 704560A GB 16278/51 A GB16278/51 A GB 16278/51A GB 1627851 A GB1627851 A GB 1627851A GB 704560 A GB704560 A GB 704560A
Authority
GB
United Kingdom
Prior art keywords
valve
spring
pin
wearer
casing
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
GB16278/51A
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.)
Siebe Gorman and Co Ltd
Original Assignee
Siebe Gorman and Co 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 Siebe Gorman and Co Ltd filed Critical Siebe Gorman and Co Ltd
Priority to GB16278/51A priority Critical patent/GB704560A/en
Publication of GB704560A publication Critical patent/GB704560A/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
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0413—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of closure plates

Abstract

704,560. Relief valves. SIEBE, GORMAN & CO., Ltd., DAVIES, Sir R. H., and DAVIS, R. W. G. April 16, 1952 [July 9, 1951], No. 16278/51. Class 135 In a spring-loaded relief valve having manually operable means to adjust the loading of the spring to two independent working settings, the means are located exterior of the valve casing to enable the settings to be changed without dismantling the valve. As used with under-water breathing apparatus, the valve comprises a twopart casing 2, 4, Fig. 1, clamping between its parts a breathing bag 1, and housing a valve closure member 24 loaded by a spring 29. The upper end of the spring abuts an operating member 20 having a pin 30 engageable in an L-shaped slot 31, Fig. 3, formed in a sleeve 16 screwed to the casing. The loading of the spring is initially adjusted by the sleeve 16 which is then locked in position by a nut 17. When the pin 30 engages the top of the vertical limb of the slot 31 the valve is adjusted to its lower working setting and air is automatically permitted to escape whilst the wearer of the apparatus ascends to the surface. On reaching the surface the wearer depresses and rotates the member 20 to bring the pin 30 into engagement with the horizontal limb of the slot 31 to set the valve at its higher setting. At this higher setting further escape of air is prevented, except under abnormal conditions, and the bag 1 keeps the wearer afloat.
GB16278/51A 1951-07-09 1951-07-09 Improvements in or relating to under-water valves for breathing apparatus Expired GB704560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB16278/51A GB704560A (en) 1951-07-09 1951-07-09 Improvements in or relating to under-water valves for breathing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB16278/51A GB704560A (en) 1951-07-09 1951-07-09 Improvements in or relating to under-water valves for breathing apparatus

Publications (1)

Publication Number Publication Date
GB704560A true GB704560A (en) 1954-02-24

Family

ID=10074435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16278/51A Expired GB704560A (en) 1951-07-09 1951-07-09 Improvements in or relating to under-water valves for breathing apparatus

Country Status (1)

Country Link
GB (1) GB704560A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177183A (en) * 1985-07-05 1987-01-14 Mpl Pumps Limited Vent/relief valve
US4805664A (en) * 1985-08-01 1989-02-21 Mattei Spartaco F Spa valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2177183A (en) * 1985-07-05 1987-01-14 Mpl Pumps Limited Vent/relief valve
GB2177183B (en) * 1985-07-05 1989-07-19 Mpl Pumps Limited Valve
US4805664A (en) * 1985-08-01 1989-02-21 Mattei Spartaco F Spa valve

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