GB1001562A - Fluid-pressure loading attachment for mine roof bars and mine roof support assemblies provided therewith - Google Patents

Fluid-pressure loading attachment for mine roof bars and mine roof support assemblies provided therewith

Info

Publication number
GB1001562A
GB1001562A GB3994560A GB3994560A GB1001562A GB 1001562 A GB1001562 A GB 1001562A GB 3994560 A GB3994560 A GB 3994560A GB 3994560 A GB3994560 A GB 3994560A GB 1001562 A GB1001562 A GB 1001562A
Authority
GB
United Kingdom
Prior art keywords
mine roof
fluid
support assemblies
loading attachment
pressure loading
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
GB3994560A
Inventor
John Dunbar Kibble
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents 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 Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Priority to GB3994560A priority Critical patent/GB1001562A/en
Publication of GB1001562A publication Critical patent/GB1001562A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/0206—Hydraulically operated extension devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Tents Or Canopies (AREA)
  • Actuator (AREA)

Abstract

1,001,562. Setting devices for mine roof supports. COAL INDUSTRY (PATENTS) Ltd. Nov. 21, 1961 [Nov. 21, 1960], No. 39945/60. Heading E1E. A portable hydraulic attachment for urging a cantilever roof bar 5 against a mine roof consists of a lever 7, 9, 10 which is adapted to be removably attached to the pivot 4 of the roof bar 3 and which is actuated by a bellows or jack 13, 14 formed integral therewith. Reference has been directed by the Comptroller to Specifications 885,293 and 856,720.
GB3994560A 1960-11-21 1960-11-21 Fluid-pressure loading attachment for mine roof bars and mine roof support assemblies provided therewith Expired GB1001562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3994560A GB1001562A (en) 1960-11-21 1960-11-21 Fluid-pressure loading attachment for mine roof bars and mine roof support assemblies provided therewith

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3994560A GB1001562A (en) 1960-11-21 1960-11-21 Fluid-pressure loading attachment for mine roof bars and mine roof support assemblies provided therewith

Publications (1)

Publication Number Publication Date
GB1001562A true GB1001562A (en) 1965-08-18

Family

ID=10412348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3994560A Expired GB1001562A (en) 1960-11-21 1960-11-21 Fluid-pressure loading attachment for mine roof bars and mine roof support assemblies provided therewith

Country Status (1)

Country Link
GB (1) GB1001562A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383868A (en) * 1965-02-03 1968-05-21 Rheinstahl Wanehim G M B H Mechanical movable prop assemblies
GB2196371A (en) * 1986-10-15 1988-04-27 Gullick Dobson Ltd Constant pressure mine roof support canopy extension

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383868A (en) * 1965-02-03 1968-05-21 Rheinstahl Wanehim G M B H Mechanical movable prop assemblies
GB2196371A (en) * 1986-10-15 1988-04-27 Gullick Dobson Ltd Constant pressure mine roof support canopy extension
GB2196371B (en) * 1986-10-15 1990-05-09 Gullick Dobson Ltd Mine roof supports

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