GB2012335A - Props - Google Patents

Props

Info

Publication number
GB2012335A
GB2012335A GB7835891A GB7835891A GB2012335A GB 2012335 A GB2012335 A GB 2012335A GB 7835891 A GB7835891 A GB 7835891A GB 7835891 A GB7835891 A GB 7835891A GB 2012335 A GB2012335 A GB 2012335A
Authority
GB
United Kingdom
Prior art keywords
double wedge
tubes
wedge clamp
props
effected
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.)
Withdrawn
Application number
GB7835891A
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
Publication of GB2012335A publication Critical patent/GB2012335A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E04G25/08—Shores or struts; Chocks telescopic with parts held relatively to each other by friction or gripping
    • 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
    • E21D15/52—Extensible units located above or below standard props
    • E21D15/523—Extensible units located above or below standard props with hydraulic or pneumatic control
    • 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
    • E04G2025/047—Shores or struts; Chocks telescopic which telescoping action effected by a piston

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Supports For Pipes And Cables (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Clamps And Clips (AREA)

Abstract

A telescopic prop comprising inner and outer tubes 1, 2 is extended by an hydraulic jack 6 arranged between wedge clamps 7, 8 on the tubes 1, 2 respectively. Coarse adjustment is effected by means of a temporary double wedge clamp 3. A second support plate 15 may be held in place by another double wedge clamp 13. <IMAGE>
GB7835891A 1977-09-10 1978-09-07 Props Withdrawn GB2012335A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LB457877 1977-09-10

Publications (1)

Publication Number Publication Date
GB2012335A true GB2012335A (en) 1979-07-25

Family

ID=19720865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7835891A Withdrawn GB2012335A (en) 1977-09-10 1978-09-07 Props

Country Status (2)

Country Link
DE (1) DE2839371A1 (en)
GB (1) GB2012335A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020211107A1 (en) * 2019-04-18 2020-10-22 东北大学 Artificial ore pillar for underground support and construction method therefor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9310107U1 (en) * 1993-07-07 1993-11-18 Dietrich Rolf Plasterer tripod
DE29514636U1 (en) * 1995-09-12 1995-11-23 Thomae Uwe Ceiling-high shut-off device
CN110230396B (en) * 2019-05-23 2021-05-11 浙江宝盛建设集团有限公司 Support changing method for pouring positioning and early-dismantling formwork of large-span beam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020211107A1 (en) * 2019-04-18 2020-10-22 东北大学 Artificial ore pillar for underground support and construction method therefor

Also Published As

Publication number Publication date
DE2839371A1 (en) 1979-03-22

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)