GB220898A - Improvements in reducing valves - Google Patents

Improvements in reducing valves

Info

Publication number
GB220898A
GB220898A GB753324A GB753324A GB220898A GB 220898 A GB220898 A GB 220898A GB 753324 A GB753324 A GB 753324A GB 753324 A GB753324 A GB 753324A GB 220898 A GB220898 A GB 220898A
Authority
GB
United Kingdom
Prior art keywords
valve
chamber
pressure
leading
piston
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
GB753324A
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
Priority to GB753324A priority Critical patent/GB220898A/en
Publication of GB220898A publication Critical patent/GB220898A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
    • H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
    • H05B41/295—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices and specially adapted for lamps with preheating electrodes, e.g. for fluorescent lamps
    • H05B41/298—Arrangements for protecting lamps or circuits against abnormal operating conditions
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/04—Control of fluid pressure without auxiliary power
    • G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
    • G05D16/103—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger the sensing element placed between the inlet and outlet
    • G05D16/106—Sleeve-like sensing elements; Sensing elements surrounded by the flow path
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/14—Control of fluid pressure with auxiliary non-electric power
    • G05D16/16—Control of fluid pressure with auxiliary non-electric power derived from the controlled fluid

Abstract

220,898. Edwards, G. T., and Blakeborough, R. A. March 25, 1924. Addition to 207,004. Pressure-regulating valves.-A pressure-regulating valve having a differential piston 4<1>, 4<2> arranged to work in a cylindrical member 2<1> depending from the cover 2 of an enlarged part of the casing 1<6> is controlled by an auxiliary valve f actuated by a piston k subject to reduced pressure. A passage a<1> leading to the main actuating chamber a is connected by a pipe b to a chamber c<1> in the auxiliary valve casing c. The cylindrical auxiliary valve f has an annular groove f<1> and works in a liner having ports d, e leading to the chamber c<1> and to an inlet pipe i controlled by a cock h and a port c<3> leading to a chamber c<2> connected by a pipe g to the outlet side of the main valve. The auxiliary valve is connected by a lever j to the plunger k which is loaded by weights so that when the reduced pressure rises, the valve f is moved downward so as to admit inlet pressure to the actuating chamber and thus close the main valve. When the pressure falls, the valve rises and connects the actuating chamber to the outlet side of the main valve or to exhaust. In a modification the piston valve f is replaced by two spring loaded lift valves actuated by a common spindle.
GB753324A 1924-03-25 1924-03-25 Improvements in reducing valves Expired GB220898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB753324A GB220898A (en) 1924-03-25 1924-03-25 Improvements in reducing valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB753324A GB220898A (en) 1924-03-25 1924-03-25 Improvements in reducing valves

Publications (1)

Publication Number Publication Date
GB220898A true GB220898A (en) 1924-08-28

Family

ID=9834926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB753324A Expired GB220898A (en) 1924-03-25 1924-03-25 Improvements in reducing valves

Country Status (1)

Country Link
GB (1) GB220898A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527851A (en) * 1944-11-30 1950-10-31 Gen Controls Co Fluid control valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527851A (en) * 1944-11-30 1950-10-31 Gen Controls Co Fluid control valve

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