SE317791B - - Google Patents

Info

Publication number
SE317791B
SE317791B SE241269A SE241269A SE317791B SE 317791 B SE317791 B SE 317791B SE 241269 A SE241269 A SE 241269A SE 241269 A SE241269 A SE 241269A SE 317791 B SE317791 B SE 317791B
Authority
SE
Sweden
Application number
SE241269A
Inventor
O Jahr
N Ahlgren
Original Assignee
O Jahr
N Ahlgren
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 O Jahr, N Ahlgren filed Critical O Jahr
Priority to SE241269A priority Critical patent/SE317791B/xx
Publication of SE317791B publication Critical patent/SE317791B/xx
Priority to DE19691961283 priority patent/DE1961283A1/de
Priority to GB1297777D priority patent/GB1297777A/en
Priority to FR7003326A priority patent/FR2030441A1/fr
Priority to CA074,516A priority patent/CA946820A/en
Priority to JP1515870A priority patent/JPS5026822B1/ja

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F3/00Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25Constructional features
    • B66F3/30Constructional features with positive brakes or locks

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
SE241269A 1969-02-21 1969-02-21 SE317791B (xx)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE241269A SE317791B (xx) 1969-02-21 1969-02-21
DE19691961283 DE1961283A1 (de) 1969-02-21 1969-12-06 Hebezeug
GB1297777D GB1297777A (xx) 1969-02-21 1969-12-08
FR7003326A FR2030441A1 (xx) 1969-02-21 1970-01-30
CA074,516A CA946820A (en) 1969-02-21 1970-02-11 Jack assemblies
JP1515870A JPS5026822B1 (xx) 1969-02-21 1970-02-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE241269A SE317791B (xx) 1969-02-21 1969-02-21

Publications (1)

Publication Number Publication Date
SE317791B true SE317791B (xx) 1969-11-24

Family

ID=20259909

Family Applications (1)

Application Number Title Priority Date Filing Date
SE241269A SE317791B (xx) 1969-02-21 1969-02-21

Country Status (6)

Country Link
JP (1) JPS5026822B1 (xx)
CA (1) CA946820A (xx)
DE (1) DE1961283A1 (xx)
FR (1) FR2030441A1 (xx)
GB (1) GB1297777A (xx)
SE (1) SE317791B (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE31206E (en) * 1972-01-12 1983-04-12 Method of lowering and raising loads by means of a jack assembly and lifting element
SE354635B (xx) * 1972-01-12 1973-03-19 N Ahlgren
AT388418B (de) * 1984-04-24 1989-06-26 Upravlewnie Montazhu Demontazh Hydraulischer kraftmechanismus
CN1332873C (zh) * 2005-07-08 2007-08-22 花周建 防坠落穿心式液压上升和下降千斤顶
WO2009132024A1 (en) 2008-04-22 2009-10-29 Lift Systems, Inc. Integrated wedge lock arrangement
CN103332637B (zh) * 2013-03-06 2015-07-08 中国电力科学研究院 一种钢绞线预紧装置
CN103466501B (zh) * 2013-09-10 2015-10-28 中国核工业华兴建设有限公司 一种预应力张拉千斤顶
CN110550569B (zh) * 2019-09-03 2020-12-18 郑州大学 一种推拉式辅助支撑装置

Also Published As

Publication number Publication date
GB1297777A (xx) 1972-11-29
CA946820A (en) 1974-05-07
DE1961283A1 (de) 1970-09-10
FR2030441A1 (xx) 1970-11-13
JPS5026822B1 (xx) 1975-09-03

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