JPS55155863A - Base jack - Google Patents

Base jack

Info

Publication number
JPS55155863A
JPS55155863A JP5802780A JP5802780A JPS55155863A JP S55155863 A JPS55155863 A JP S55155863A JP 5802780 A JP5802780 A JP 5802780A JP 5802780 A JP5802780 A JP 5802780A JP S55155863 A JPS55155863 A JP S55155863A
Authority
JP
Japan
Prior art keywords
base jack
jack
base
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.)
Pending
Application number
JP5802780A
Other languages
Japanese (ja)
Inventor
Eritsuku Gosutoringu Piitaa
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.)
C Evans and Sons Ltd
Original Assignee
C Evans and Sons 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 C Evans and Sons Ltd filed Critical C Evans and Sons Ltd
Publication of JPS55155863A publication Critical patent/JPS55155863A/en
Pending 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
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/20—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like, spaced apart at intervals
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/061—Shores or struts; Chocks telescopic with parts held together by positive means by pins
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/061—Shores or struts; Chocks telescopic with parts held together by positive means by pins
    • E04G25/063—Shores or struts; Chocks telescopic with parts held together by positive means by pins with safety devices to avoid the accidental loss or unlocking of the pin, e.g. chains attaching the pin to the prop
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G25/00—Shores or struts; Chocks
    • E04G25/04—Shores or struts; Chocks telescopic
    • E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
    • E04G25/065—Shores or struts; Chocks telescopic with parts held together by positive means by a threaded nut

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
JP5802780A 1979-05-03 1980-05-02 Base jack Pending JPS55155863A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7915463A GB2048333B (en) 1979-05-03 1979-05-03 Props

Publications (1)

Publication Number Publication Date
JPS55155863A true JPS55155863A (en) 1980-12-04

Family

ID=10504938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5802780A Pending JPS55155863A (en) 1979-05-03 1980-05-02 Base jack

Country Status (14)

Country Link
JP (1) JPS55155863A (en)
AU (1) AU5758780A (en)
BE (1) BE882973A (en)
BR (1) BR8002647A (en)
CA (1) CA1138018A (en)
DE (1) DE3016586A1 (en)
ES (1) ES250429Y (en)
FR (1) FR2455665A1 (en)
GB (1) GB2048333B (en)
HK (1) HK41583A (en)
NL (1) NL8002359A (en)
NZ (1) NZ193489A (en)
SE (1) SE8002969L (en)
ZA (1) ZA802345B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0648685A (en) * 1993-04-09 1994-02-22 Matsuo Eng Kk Wedge type jack device
JPH0656393A (en) * 1993-04-09 1994-03-01 Matsuo Eng Kk Wedge type jack unit

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2675551B1 (en) * 1991-04-22 1993-08-06 Rennepont IMPROVEMENTS ON SHAFT NUTS.
GB2441108A (en) * 2006-08-23 2008-02-27 Colebrook Bosson Saunders Prod A collar for attachment to a monitor support arm mounting post
CN101864971B (en) * 2010-05-28 2011-08-31 河北理工大学 Portable rapid telescopic supporting post
CN103133019A (en) * 2011-11-23 2013-06-05 王琼 Flexible shield support with adjustable height
CN103423563A (en) * 2013-08-19 2013-12-04 常熟通润汽车零部件股份有限公司 Height-adjustable safety bracket
CN108117003B (en) * 2016-11-29 2019-07-16 中国国际海运集装箱(集团)股份有限公司 Adjustable supporting and lift truck
CN109184757A (en) * 2018-08-28 2019-01-11 郑光茂 Small mine pillar
CN109267767B (en) * 2018-11-12 2023-10-17 贵州师范大学 Building support frame structure
CN111576925B (en) * 2020-04-29 2021-11-05 浙江东新建设有限公司 Quick building steel support frame and implementation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0648685A (en) * 1993-04-09 1994-02-22 Matsuo Eng Kk Wedge type jack device
JPH0656393A (en) * 1993-04-09 1994-03-01 Matsuo Eng Kk Wedge type jack unit

Also Published As

Publication number Publication date
ZA802345B (en) 1981-04-29
GB2048333B (en) 1982-12-15
BR8002647A (en) 1980-12-09
NZ193489A (en) 1982-09-14
ES250429Y (en) 1981-02-16
NL8002359A (en) 1980-11-05
FR2455665B3 (en) 1982-03-12
FR2455665A1 (en) 1980-11-28
GB2048333A (en) 1980-12-10
SE8002969L (en) 1980-11-04
HK41583A (en) 1983-10-21
ES250429U (en) 1980-09-01
AU5758780A (en) 1980-11-06
BE882973A (en) 1980-10-24
CA1138018A (en) 1982-12-21
DE3016586A1 (en) 1980-11-06

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