GB190000A - Improvement in or connected with hydraulic jacks - Google Patents

Improvement in or connected with hydraulic jacks

Info

Publication number
GB190000A
GB190000A GB3276121A GB3276121A GB190000A GB 190000 A GB190000 A GB 190000A GB 3276121 A GB3276121 A GB 3276121A GB 3276121 A GB3276121 A GB 3276121A GB 190000 A GB190000 A GB 190000A
Authority
GB
United Kingdom
Prior art keywords
crutch
improvement
hydraulic jacks
spring
ram
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
GB3276121A
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 GB3276121A priority Critical patent/GB190000A/en
Publication of GB190000A publication Critical patent/GB190000A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F13/00—Common constructional features or accessories
    • 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
    • E21D15/54—Details of the ends of props

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Rehabilitation Tools (AREA)

Abstract

190,000. Law, E. Dec. 6, 1921. Jacks. - A spring - supported plunger E is mounted in the ram A of an hydraulic jack so, that its head G normally projects beyond the crutch F. When the weight of the load ceases to be taken by the crutch, the spring C will force the ram downwards and free the crutch from the load so that the jack can be readily removed.
GB3276121A 1921-12-06 1921-12-06 Improvement in or connected with hydraulic jacks Expired GB190000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3276121A GB190000A (en) 1921-12-06 1921-12-06 Improvement in or connected with hydraulic jacks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3276121A GB190000A (en) 1921-12-06 1921-12-06 Improvement in or connected with hydraulic jacks

Publications (1)

Publication Number Publication Date
GB190000A true GB190000A (en) 1922-12-14

Family

ID=10343606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3276121A Expired GB190000A (en) 1921-12-06 1921-12-06 Improvement in or connected with hydraulic jacks

Country Status (1)

Country Link
GB (1) GB190000A (en)

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