GB1482466A - Tubular mine roadway support stilts - Google Patents

Tubular mine roadway support stilts

Info

Publication number
GB1482466A
GB1482466A GB2958674A GB2958674A GB1482466A GB 1482466 A GB1482466 A GB 1482466A GB 2958674 A GB2958674 A GB 2958674A GB 2958674 A GB2958674 A GB 2958674A GB 1482466 A GB1482466 A GB 1482466A
Authority
GB
United Kingdom
Prior art keywords
leg
stilt
tube
mine roof
july
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
GB2958674A
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.)
SCHWARZ HOLYWELL Ltd
Original Assignee
SCHWARZ HOLYWELL 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 SCHWARZ HOLYWELL Ltd filed Critical SCHWARZ HOLYWELL Ltd
Priority to GB2958674A priority Critical patent/GB1482466A/en
Publication of GB1482466A publication Critical patent/GB1482466A/en
Expired 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
    • E21D15/22—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure
    • 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
    • E21D15/48—Chocks or the like

Landscapes

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

Abstract

1482466 Yieldable mine roof support stilts SCHWARZ HOLYWELL Ltd 4 July 1975 [4 July 1974] 29586/74 Heading E1E A mine roof support comprises a stilt in which is received a support leg 2, the stilt comprising two axially connected tubular portions 1 and 3, of which the upper tube 1 has a diameter slightly larger than the leg 2, so that the leg is a sliding fit therein, and the lower tube 3 has a diameter smaller than the leg, the junction of the two tubes forming a ledge 4 on which the leg 2 initially rests, and the load of the mine roof in use thrusting the leg 2 into the smaller tube 3 and expanding the tube, the stilt thus providing a controlled rate of yielding. The leg 2, as shown, is an I-section rolled steel joist, and if its web and flanges are of different widths, the tubes 1 and 3 may be of oval section. The stilt may have a base plate 5.
GB2958674A 1975-07-04 1975-07-04 Tubular mine roadway support stilts Expired GB1482466A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2958674A GB1482466A (en) 1975-07-04 1975-07-04 Tubular mine roadway support stilts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2958674A GB1482466A (en) 1975-07-04 1975-07-04 Tubular mine roadway support stilts

Publications (1)

Publication Number Publication Date
GB1482466A true GB1482466A (en) 1977-08-10

Family

ID=10293881

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2958674A Expired GB1482466A (en) 1975-07-04 1975-07-04 Tubular mine roadway support stilts

Country Status (1)

Country Link
GB (1) GB1482466A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194809A (en) * 1986-09-09 1988-03-16 British Steel Corp Energy absorption joint
GB2353544A (en) * 1999-08-24 2001-02-28 Cleveland Rockbolt Company Mining roof support
CN102182475A (en) * 2011-04-29 2011-09-14 安徽省皖北煤电集团有限责任公司百善煤矿 I-shaped steel support system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194809A (en) * 1986-09-09 1988-03-16 British Steel Corp Energy absorption joint
GB2194809B (en) * 1986-09-09 1990-02-14 British Steel Corp Energy absorption joint
GB2353544A (en) * 1999-08-24 2001-02-28 Cleveland Rockbolt Company Mining roof support
CN102182475A (en) * 2011-04-29 2011-09-14 安徽省皖北煤电集团有限责任公司百善煤矿 I-shaped steel support system

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee