[go: up one dir, main page]

GB1356008A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
GB1356008A
GB1356008A GB4341171A GB4341171A GB1356008A GB 1356008 A GB1356008 A GB 1356008A GB 4341171 A GB4341171 A GB 4341171A GB 4341171 A GB4341171 A GB 4341171A GB 1356008 A GB1356008 A GB 1356008A
Authority
GB
United Kingdom
Prior art keywords
sleeve
mine roof
base
sept
plates
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
GB4341171A
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 GB4341171A priority Critical patent/GB1356008A/en
Publication of GB1356008A publication Critical patent/GB1356008A/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
    • E21D15/50—Component parts or details of 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)
  • Tents Or Canopies (AREA)

Abstract

1356008 Mine roof supports COAL INDUSTRY (PATENTS) Ltd 12 Sept 1972 [17 Sept 1971] 43411/71 Heading E1P In a mine roof support, see Figs. 1 and 2 of Prov. Specification (not shown), comprising a series of telescopic legs upstanding from a base and each mounted thereon by a guide mounting having a central bore through which the leg extends to protrude into the base for support therein by resilient means, a replaceable strengthening sleeve is located between the guide mounting and the base. The sleeve consists of plates 12, 16 interconnected by a tubular member 20 and plates 26 which may be apertured to enable one sleeve to be connected to another by means of a tie-bar. The component parts of the sleeve may be welded together and the sleeve connected in position by bolts passing through holes 14, 18 as shown.
GB4341171A 1971-09-17 1971-09-17 Mine roof supports Expired GB1356008A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4341171A GB1356008A (en) 1971-09-17 1971-09-17 Mine roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4341171A GB1356008A (en) 1971-09-17 1971-09-17 Mine roof supports

Publications (1)

Publication Number Publication Date
GB1356008A true GB1356008A (en) 1974-06-12

Family

ID=10428638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4341171A Expired GB1356008A (en) 1971-09-17 1971-09-17 Mine roof supports

Country Status (1)

Country Link
GB (1) GB1356008A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297994A1 (en) * 1975-01-15 1976-08-13 Banyaszati Kutato Intezet Telescopic hydraulic pit prop - has tube from valve housing with radial ribs to inside of upper prop section

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297994A1 (en) * 1975-01-15 1976-08-13 Banyaszati Kutato Intezet Telescopic hydraulic pit prop - has tube from valve housing with radial ribs to inside of upper prop section

Similar Documents

Publication Publication Date Title
GB1267033A (en)
IT1011345B (en) OSCILLATION SHOCK ABSORBER FOR ELASTIC SUSPENSION OF VEHICLES WITH A HYDRAULIC SHOCK ABSORBER WORKING DEPENDING ON THE LOAD
GB1429799A (en) Mine roof supports
BE771087A (en) MOUTON DIESEL PERCUSSION SPRAY
GB1468987A (en) Mining shield support apparatus
GB1356008A (en) Mine roof supports
GB980443A (en) Improvements in roof bar arrangements and self-advancing roof supports
GB1248694A (en) Improvements in mine roof support assemblies
GB1259559A (en)
GB1251096A (en)
GB1148916A (en) Mine roof supports
GB1249412A (en) Improvements in or relating to mine roof supports
ES399232A1 (en) Stabilizer, in particular for the chassis bearing a crane. (Machine-translation by Google Translate, not legally binding)
GB998731A (en) Improvements in or relating to workholders having roller beds
GB1217566A (en) Improvements in or relating to self-advancing underground roof supports
GB1491466A (en) Self-advancing mine roof supports
GB1216953A (en) Improvements in support assemblies for mineral mines
GB1536138A (en) Mine roof support
SU550272A1 (en) Part orientation method
ZA713506B (en) Drilling bolt holes
GB1436416A (en) Mine support
SU699853A1 (en) Borehole tool for electric-pulse drilling holes
SU1093394A1 (en) Device for obtaining ferrite charge
GB1021296A (en) Improvements in yielding mine arch support structures
GB1391331A (en) Mine roof supports

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees