GB190007575A - An Improvement in Controlling Valves for Steering and such like Engines. - Google Patents

An Improvement in Controlling Valves for Steering and such like Engines.

Info

Publication number
GB190007575A
GB190007575A GB190007575DA GB190007575A GB 190007575 A GB190007575 A GB 190007575A GB 190007575D A GB190007575D A GB 190007575DA GB 190007575 A GB190007575 A GB 190007575A
Authority
GB
United Kingdom
Prior art keywords
valve
valves
controlling
steering
steam
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
Inventor
James Lewis Boothman
Walter Graham
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190007575A publication Critical patent/GB190007575A/en
Expired legal-status Critical Current

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  • Mechanically-Actuated Valves (AREA)

Abstract

7575. Boothman, J. L., and Graham, W. April 24. Steering-gear.-In steering and like engines with piston controlling-valves there is considerable leakage, unless the valves are made so tight that they are difficult to move. The invention relates to means for shutting off the working fluid whenever the controlling-valve is in its neutral or stop position. The piston controlling-valve h, the ends of which communicate through passages on each side of the slot with which the operating-lever i engages, govern the steam-supply ports f, g, and the exhaust port e, live steam being admitted to the controlling-valve casing at c, d. At each end of the casing, shut-off valves m, n are provided, in the centre of each of which is a pilot or relief valve l, o acted on by a closing-spring. The valves prevent admission of steam to the piston controlling-valve h except when it is moved towards one end or other of its stroke ; when so moved it actuates first one of the small pilot or equilibrating valves l, o and then the corresponding valve m or n.
GB190007575D 1900-04-24 1900-04-24 An Improvement in Controlling Valves for Steering and such like Engines. Expired GB190007575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190007575T 1900-04-24

Publications (1)

Publication Number Publication Date
GB190007575A true GB190007575A (en) 1901-02-16

Family

ID=32148194

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190007575D Expired GB190007575A (en) 1900-04-24 1900-04-24 An Improvement in Controlling Valves for Steering and such like Engines.

Country Status (1)

Country Link
GB (1) GB190007575A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445585A (en) * 1946-02-15 1948-07-20 Keller Tool Co Pneumatic hoist and reversing valve mechanism therefor
US2865339A (en) * 1955-11-10 1958-12-23 Arthur E Bishop Variable ratio power steering apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445585A (en) * 1946-02-15 1948-07-20 Keller Tool Co Pneumatic hoist and reversing valve mechanism therefor
US2865339A (en) * 1955-11-10 1958-12-23 Arthur E Bishop Variable ratio power steering apparatus

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