GB245517A - Improvements in and relating to valve mechanism - Google Patents

Improvements in and relating to valve mechanism

Info

Publication number
GB245517A
GB245517A GB2393624A GB2393624A GB245517A GB 245517 A GB245517 A GB 245517A GB 2393624 A GB2393624 A GB 2393624A GB 2393624 A GB2393624 A GB 2393624A GB 245517 A GB245517 A GB 245517A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
engage
seat
hand
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
GB2393624A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Priority to GB2393624A priority Critical patent/GB245517A/en
Publication of GB245517A publication Critical patent/GB245517A/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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves

Abstract

245,517. British Thomson-Houston Co., Ltd., and Halliwell, R. F. Oct. 9, 1924. Addition to 177,224. Stop-gear.-An emergency valve of the kind described in the parent Specification in which the valve is retained open by fluid pressure after being opened by hand but after automatically closing can only be re-opened by hand, is retained in the open position by a leaky piston having a valvelike sealing-surface adapted to make the piston fluid tight at one end of its movement. The valve spindle I has a threaded part 1<1> adapted to engage a nut formed in a sleeve 2 connected to the piston 3 and slidably but non-rotatably mounted in a boss 5 supported by a web 6 from the casing 7. A bevel wheel 11 is mounted on the spindle 1<1> and engages a corresponding wheel 12 adapted to be rotated by a hand wheel 14 for opening the valve. The piston fits loosely in a cylinder 4 supplied with pressure fluid through a port 8 and has a sealing-surface 9 adapted to engage a seat on the casing. To open the valve the hand wheel is first rotated in one direction to cause the surface to engage its seat and then in the other direction to move the main valve off its seat.
GB2393624A 1924-10-09 1924-10-09 Improvements in and relating to valve mechanism Expired GB245517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2393624A GB245517A (en) 1924-10-09 1924-10-09 Improvements in and relating to valve mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2393624A GB245517A (en) 1924-10-09 1924-10-09 Improvements in and relating to valve mechanism

Publications (1)

Publication Number Publication Date
GB245517A true GB245517A (en) 1926-01-11

Family

ID=10203705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2393624A Expired GB245517A (en) 1924-10-09 1924-10-09 Improvements in and relating to valve mechanism

Country Status (1)

Country Link
GB (1) GB245517A (en)

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