GB850450A - Improvements relating to vent valves for compressed fluid braking apparatus - Google Patents

Improvements relating to vent valves for compressed fluid braking apparatus

Info

Publication number
GB850450A
GB850450A GB33169/58A GB3316958A GB850450A GB 850450 A GB850450 A GB 850450A GB 33169/58 A GB33169/58 A GB 33169/58A GB 3316958 A GB3316958 A GB 3316958A GB 850450 A GB850450 A GB 850450A
Authority
GB
United Kingdom
Prior art keywords
valve
passage
piston
pistons
brakes
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
GB33169/58A
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.)
Compagnie des Freins et Signaux Westinghouse SA
Original Assignee
Compagnie des Freins et Signaux Westinghouse SA
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 Compagnie des Freins et Signaux Westinghouse SA filed Critical Compagnie des Freins et Signaux Westinghouse SA
Publication of GB850450A publication Critical patent/GB850450A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T15/00—Construction arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/00 or B60T13/00
    • B60T15/02—Application and release valves
    • B60T15/36—Other control devices or valves characterised by definite functions
    • B60T15/54—Other control devices or valves characterised by definite functions for controlling exhaust from triple valve or from brake cylinder

Abstract

850,450. Vent valve for fluid pressure brakes. COMPAGNIE DES FREINS ET SIGNAUX WESTINGHOUSE. Oct. 17, 1958 [Oct. 26, 1957], No. 33169/58. Class 103 (1). A vent valve device for compressed fluid braking apparatus, comprises chambers 6, 7 for connection to an auxiliary reservoir and a brake cylinder respectively, and connected by a passage 5 closable by a valve 11 controlled by a piston 8b coaxially slidable in a piston 8a which normally closes a vent passage 12 between chamber 7 and atmosphere, the pistons being exposed to atmosphere on one side and on the other to brake pipe pressure acting to maintain valve 11 open and passage 12 closed, and a manually operable member 19 by which the pistons can be moved to close valve 11 and open passage 12. With the apparatus on a railway vehicle, the brakes are normally applied on separation of the vehicle from the train, to release the brakes, operation of member 19 moves pistons 8a, 8b via plunger 20 against springs 14, 21 to uncover port 13 and connect passage 12 to a reduced diameter portion 15 of piston 8a, ports 18 and atmospheric chamber 22 to vent the brake cylinder only to release the brakes, the passage 5 being closed by valve 11. The pistons are held raised by escaping fluid acting on the lower face of piston 8a and by auxiliary reservoir pressure acting on the lower face of valve 11 which is fixed by rod 9 to piston 8b. When a truck has been reconnected with a train, the brake pipe pressure rises and acts through a connection, not shown, to lower the pistons 8a, 8b, close passage 12 and open valve 11. The rod 9 is a loose fit in bore 10, permitting the venting of chamber 10a to atmosphere via duct 9a, sealing rings 11a prevent fluid escaping to duct 9a from the auxiliary reservoir when valve 11 is closed.
GB33169/58A 1959-05-15 1958-10-17 Improvements relating to vent valves for compressed fluid braking apparatus Expired GB850450A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR794734A FR75719E (en) 1959-05-15 1959-05-15 Bleed valve for releasing automatic pressurized fluid brakes
FR1185216T 1959-10-07
FR806900A FR76385E (en) 1959-05-15 1959-10-07 Bleed valve for releasing automatic pressurized fluid brakes
FR863152A FR79869E (en) 1959-05-15 1961-05-29 Bleed valve for releasing automatic pressurized fluid brakes

Publications (1)

Publication Number Publication Date
GB850450A true GB850450A (en) 1960-10-05

Family

ID=27445127

Family Applications (3)

Application Number Title Priority Date Filing Date
GB33169/58A Expired GB850450A (en) 1959-05-15 1958-10-17 Improvements relating to vent valves for compressed fluid braking apparatus
GB16434/60A Expired GB955414A (en) 1959-05-15 1960-05-10 Improvements relating to a vent valve device for compressed fluid braking apparatus
GB33110/60A Expired GB920351A (en) 1959-05-15 1960-09-27 Improvements relating to vent or release valve devices for compressed fluid braking apparatus

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB16434/60A Expired GB955414A (en) 1959-05-15 1960-05-10 Improvements relating to a vent valve device for compressed fluid braking apparatus
GB33110/60A Expired GB920351A (en) 1959-05-15 1960-09-27 Improvements relating to vent or release valve devices for compressed fluid braking apparatus

Country Status (7)

Country Link
BE (1) BE571571A (en)
CH (2) CH362710A (en)
DE (3) DE1181262B (en)
FR (4) FR1185216A (en)
GB (3) GB850450A (en)
LU (2) LU39205A1 (en)
NL (4) NL120790C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967591B2 (en) 2011-02-24 2015-03-03 Wabtec Holding Corp. Trip cock fault detector
CN107554511A (en) * 2017-09-22 2018-01-09 眉山中车制动科技股份有限公司 A kind of hand relieving valve and stress reduction device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU38566A1 (en) * 1959-05-15
NL264289A (en) * 1960-05-07
FR1295404A (en) * 1961-04-11 1962-06-08 Westinghouse Freins & Signaux Automatic purge valve for triple valve
FR1323595A (en) * 1962-02-26 1963-04-12 Westinghouse Freins & Signaux Automatic purge valve
CH447260A (en) * 1965-11-02 1967-11-30 Oerlikon Buehrle Holding Ag Automatic purge valve

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE578573C (en) * 1932-05-07 1933-06-15 Knorr Bremse Akt Ges Release device for air brakes
DE640850C (en) * 1935-10-20 1937-01-15 Knorr Bremse Akt Ges Release device for air brakes
DE847919C (en) * 1950-12-19 1952-08-28 Oerlikon Buehrle Ag Triggering device for indirectly acting air brakes
LU38566A1 (en) * 1959-05-15

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8967591B2 (en) 2011-02-24 2015-03-03 Wabtec Holding Corp. Trip cock fault detector
CN107554511A (en) * 2017-09-22 2018-01-09 眉山中车制动科技股份有限公司 A kind of hand relieving valve and stress reduction device
CN107554511B (en) * 2017-09-22 2024-01-23 眉山中车制动科技股份有限公司 Manual relief valve and pressure relief device

Also Published As

Publication number Publication date
LU38566A1 (en)
FR1185216A (en) 1959-07-31
GB955414A (en) 1964-04-15
NL122010C (en)
BE571571A (en)
LU39205A1 (en) 1961-03-21
NL120790C (en)
DE1286064B (en) 1969-01-02
DE1181262B (en) 1964-11-12
FR75719E (en) 1961-08-04
CH362710A (en) 1962-06-30
NL256227A (en)
FR79869E (en) 1963-02-08
DE1160489B (en) 1964-01-02
GB920351A (en) 1963-03-06
NL251180A (en)
CH363997A (en) 1962-08-31
FR76385E (en) 1961-10-06

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