GB556257A - Improvements in or relating to hydraulic apparatus - Google Patents

Improvements in or relating to hydraulic apparatus

Info

Publication number
GB556257A
GB556257A GB1031042A GB1031042A GB556257A GB 556257 A GB556257 A GB 556257A GB 1031042 A GB1031042 A GB 1031042A GB 1031042 A GB1031042 A GB 1031042A GB 556257 A GB556257 A GB 556257A
Authority
GB
United Kingdom
Prior art keywords
relating
hydraulic apparatus
hydraulic
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
GB1031042A
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.)
SMITH S JACKING SYSTEMS Ltd
Original Assignee
SMITH S JACKING SYSTEMS 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 SMITH S JACKING SYSTEMS Ltd filed Critical SMITH S JACKING SYSTEMS Ltd
Priority to GB1031042A priority Critical patent/GB556257A/en
Publication of GB556257A publication Critical patent/GB556257A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • 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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/02—Bearing surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
GB1031042A 1942-07-23 1942-07-23 Improvements in or relating to hydraulic apparatus Expired GB556257A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1031042A GB556257A (en) 1942-07-23 1942-07-23 Improvements in or relating to hydraulic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1031042A GB556257A (en) 1942-07-23 1942-07-23 Improvements in or relating to hydraulic apparatus

Publications (1)

Publication Number Publication Date
GB556257A true GB556257A (en) 1943-09-27

Family

ID=9965511

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1031042A Expired GB556257A (en) 1942-07-23 1942-07-23 Improvements in or relating to hydraulic apparatus

Country Status (1)

Country Link
GB (1) GB556257A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314684A (en) * 1964-08-31 1967-04-18 Ajem Lab Inc Sealing surfaces and methods of preparing same
US3440703A (en) * 1964-08-31 1969-04-29 Ajem Lab Inc Method of preparing metal sealing surfaces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3314684A (en) * 1964-08-31 1967-04-18 Ajem Lab Inc Sealing surfaces and methods of preparing same
US3440703A (en) * 1964-08-31 1969-04-29 Ajem Lab Inc Method of preparing metal sealing surfaces

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