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

    • 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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/30—Constructional features with positive brakes or locks

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Jigs For Machine Tools (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 (enrdf_load_stackoverflow)

Priority Applications (6)

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

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=20259909

Family Applications (1)

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

Country Status (6)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE354635B (enrdf_load_stackoverflow) * 1972-01-12 1973-03-19 N Ahlgren
USRE31206E (en) * 1972-01-12 1983-04-12 Method of lowering and raising loads by means of a jack assembly and lifting element
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
US8322687B2 (en) 2008-04-22 2012-12-04 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
CA946820A (en) 1974-05-07
JPS5026822B1 (enrdf_load_stackoverflow) 1975-09-03
GB1297777A (enrdf_load_stackoverflow) 1972-11-29
DE1961283A1 (de) 1970-09-10
FR2030441A1 (enrdf_load_stackoverflow) 1970-11-13

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