GB845918A - Improvements in fluid pressure relief valves - Google Patents

Improvements in fluid pressure relief valves

Info

Publication number
GB845918A
GB845918A GB412257A GB412257A GB845918A GB 845918 A GB845918 A GB 845918A GB 412257 A GB412257 A GB 412257A GB 412257 A GB412257 A GB 412257A GB 845918 A GB845918 A GB 845918A
Authority
GB
United Kingdom
Prior art keywords
bore
ram
valve
spring
carrier
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
GB412257A
Other languages
English (en)
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.)
Dowty Mining Equipment Ltd
Original Assignee
Dowty Mining Equipment 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 Dowty Mining Equipment Ltd filed Critical Dowty Mining Equipment Ltd
Priority to GB412257A priority Critical patent/GB845918A/en
Priority to FR1205185D priority patent/FR1205185A/fr
Priority to DED27372A priority patent/DE1107168B/de
Publication of GB845918A publication Critical patent/GB845918A/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
    • F16K17/0406—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 balls
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves
    • 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
    • F16K17/0466—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 with a special seating surface

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Earth Drilling (AREA)
  • Safety Valves (AREA)
GB412257A 1957-02-06 1957-02-06 Improvements in fluid pressure relief valves Expired GB845918A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB412257A GB845918A (en) 1957-02-06 1957-02-06 Improvements in fluid pressure relief valves
FR1205185D FR1205185A (fr) 1957-02-06 1958-02-06 Perfectionnement aux soupapes de décompression
DED27372A DE1107168B (de) 1957-02-06 1958-02-06 UEberdruckventil fuer hydraulische Grubenstempel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB412257A GB845918A (en) 1957-02-06 1957-02-06 Improvements in fluid pressure relief valves

Publications (1)

Publication Number Publication Date
GB845918A true GB845918A (en) 1960-08-24

Family

ID=9771168

Family Applications (1)

Application Number Title Priority Date Filing Date
GB412257A Expired GB845918A (en) 1957-02-06 1957-02-06 Improvements in fluid pressure relief valves

Country Status (3)

Country Link
DE (1) DE1107168B (de)
FR (1) FR1205185A (de)
GB (1) GB845918A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142123A (en) * 1983-06-24 1985-01-09 Teves Gmbh Alfred Pressure limiting valve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB743199A (en) * 1952-12-11 1956-01-11 Dowty Hydraulic Units Ltd Improvements in hydraulic pit props
BE526791A (de) * 1953-02-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2142123A (en) * 1983-06-24 1985-01-09 Teves Gmbh Alfred Pressure limiting valve

Also Published As

Publication number Publication date
FR1205185A (fr) 1960-02-01
DE1107168B (de) 1961-05-25

Similar Documents

Publication Publication Date Title
US3825222A (en) Charging pipe union
US3782689A (en) Control means for hydraulic jack
US3422864A (en) Self-locking connector for fluid transfer
CA1276593C (en) Energy absorbers
US20200032920A1 (en) Pneumatic diaphragm actuator and safety valve
US2781728A (en) Pneumatically powered hydraulic pump
GB845918A (en) Improvements in fluid pressure relief valves
GB1005171A (en) Improvements in vehicle suspension systems
US4091838A (en) Pressure relief valve
DE811107C (de) Grubenstempel, bestehend aus zwei ineinanderschiebbaren Rohren
US3675953A (en) Ball joint
US2670172A (en) High-pressure valve
US4237769A (en) Relief valves and mine props incorporating the same
DE1655973A1 (de) Hydraulisch daempfendes Stuetzbein fuer Kraftfahrzeuge,insbesondere Vorderachsbein
GB927765A (en) Improvements in or relating to telescopic hydraulic pit props
US3000358A (en) Hydraulic props or struts
US3404868A (en) Hydraulic jack
US3148860A (en) Fluid valves
US3142156A (en) Telescopic hydraulic props
US3012403A (en) Hydraulic jack
GB1332152A (en) Fluid pressure relief valve assembly
GB851904A (en) Fluid pressure relief valve
US3148714A (en) Liquid charging devices for hydraulic pit props
GB899122A (en) Improvements in or relating to fluid pressure control valves
GB809897A (en) Shaft sealing arrangement