GB1024262A - A mine roof hydraulic support element - Google Patents

A mine roof hydraulic support element

Info

Publication number
GB1024262A
GB1024262A GB3208263A GB3208263A GB1024262A GB 1024262 A GB1024262 A GB 1024262A GB 3208263 A GB3208263 A GB 3208263A GB 3208263 A GB3208263 A GB 3208263A GB 1024262 A GB1024262 A GB 1024262A
Authority
GB
United Kingdom
Prior art keywords
support element
hydraulic support
mine roof
aug
piston
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
GB3208263A
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 GB1024262A publication Critical patent/GB1024262A/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
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props

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)
  • Actuator (AREA)

Abstract

1,024,262. Hydraulic pit props. H. ZILLER. Aug. 14, 1963 [Aug. 16, 1962], No. 32082/63. Heading E1E. The telescopic components 1, 4 of an hydraulic pit prop are interconnected by a rolling sealing element 3 adapted to take on the U-shaped configuration shown when the prop is half extended. The upper member is provided with a piston 7 which is located between guide tubes 5, 6 carried by the lower member 1 and carries abutment stops 16b, 16c engaging a pin 15 mounted on the tube 6. The sealing element is clamped between plates 11, 12 and the piston 7 provided with a spherical seating 17 for a roofbar 18 positioned by three springs 19.
GB3208263A 1962-08-16 1963-08-14 A mine roof hydraulic support element Expired GB1024262A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEZ0009593 1962-08-16

Publications (1)

Publication Number Publication Date
GB1024262A true GB1024262A (en) 1966-03-30

Family

ID=7620970

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3208263A Expired GB1024262A (en) 1962-08-16 1963-08-14 A mine roof hydraulic support element

Country Status (1)

Country Link
GB (1) GB1024262A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136506A (en) * 1983-03-15 1984-09-19 Roger Durrant Improvements in and relating to linear actuators

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136506A (en) * 1983-03-15 1984-09-19 Roger Durrant Improvements in and relating to linear actuators

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