GB1552223A - Adjustable prop and a locking mechanism therefor - Google Patents

Adjustable prop and a locking mechanism therefor

Info

Publication number
GB1552223A
GB1552223A GB1905975A GB1905975A GB1552223A GB 1552223 A GB1552223 A GB 1552223A GB 1905975 A GB1905975 A GB 1905975A GB 1905975 A GB1905975 A GB 1905975A GB 1552223 A GB1552223 A GB 1552223A
Authority
GB
United Kingdom
Prior art keywords
locking mechanism
mechanism therefor
adjustable prop
prop
adjustable
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
GB1905975A
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.)
John A I
Moxhan J H
Original Assignee
John A I
Moxhan J H
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 John A I, Moxhan J H filed Critical John A I
Priority to GB1905975A priority Critical patent/GB1552223A/en
Publication of GB1552223A publication Critical patent/GB1552223A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
GB1905975A 1976-08-06 1976-08-06 Adjustable prop and a locking mechanism therefor Expired GB1552223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1905975A GB1552223A (en) 1976-08-06 1976-08-06 Adjustable prop and a locking mechanism therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1905975A GB1552223A (en) 1976-08-06 1976-08-06 Adjustable prop and a locking mechanism therefor

Publications (1)

Publication Number Publication Date
GB1552223A true GB1552223A (en) 1979-09-12

Family

ID=10123076

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1905975A Expired GB1552223A (en) 1976-08-06 1976-08-06 Adjustable prop and a locking mechanism therefor

Country Status (1)

Country Link
GB (1) GB1552223A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360283A (en) * 1979-09-20 1982-11-23 Ingenium Ingenieurgesellschaft fur Mehrzweckbauten Industrieanlagen und Gelandenutzung mbH, Bau-Kommanditgesellschaft Telescopic structural support
EP2318618A1 (en) * 2008-08-15 2011-05-11 Sei-Won Lee Construction support
WO2011101716A3 (en) * 2010-02-19 2012-06-14 Council Of Scientific And Industrial Research A device for roof support of underground mine/tunnel

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360283A (en) * 1979-09-20 1982-11-23 Ingenium Ingenieurgesellschaft fur Mehrzweckbauten Industrieanlagen und Gelandenutzung mbH, Bau-Kommanditgesellschaft Telescopic structural support
EP2318618A1 (en) * 2008-08-15 2011-05-11 Sei-Won Lee Construction support
EP2318618A4 (en) * 2008-08-15 2014-01-22 Sei-Won Lee Construction support
WO2011101716A3 (en) * 2010-02-19 2012-06-14 Council Of Scientific And Industrial Research A device for roof support of underground mine/tunnel
CN102844523A (en) * 2010-02-19 2012-12-26 科学与工业研究会 A device for roof support of underground mine/tunnel
CN102844523B (en) * 2010-02-19 2014-09-24 科学与工业研究会 A device for roof support of underground mine/tunnel
US9267375B2 (en) 2010-02-19 2016-02-23 Council Of Scientific & Industrial Research Device for roof support of underground mine/tunnel

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Legal Events

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