GB1404594A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
GB1404594A
GB1404594A GB1557572A GB1557572A GB1404594A GB 1404594 A GB1404594 A GB 1404594A GB 1557572 A GB1557572 A GB 1557572A GB 1557572 A GB1557572 A GB 1557572A GB 1404594 A GB1404594 A GB 1404594A
Authority
GB
United Kingdom
Prior art keywords
ram
mine roof
roof supports
advancing
support
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
GB1557572A
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.)
Gullick Dobson Ltd
Original Assignee
Gullick Dobson 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 Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Priority to GB1557572A priority Critical patent/GB1404594A/en
Priority to DE19732315185 priority patent/DE2315185B2/en
Publication of GB1404594A publication Critical patent/GB1404594A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith

Abstract

1404594 Advancing mine roof supports GULLICK DOBSON Ltd 21 March 1973 [5 April 1972] 15575/72 Heading E1P The advancing ram 22, 23 of a mine roof support, see Figs. I and 2 (not shown), is mounted in a telescopic beam 17, 18 which in turn has the outer beam 17 journalled in the base of the support and the inner beam 18 connected to the conveyor, the piston 23 of the ram being connected at 25 to the beam 18 and the cylinder 22 of the ram being anchored at 24 to the beam 17. A holding down ram is provided and attached as to a point 27 on the beam 18 to-gether, if desired, with horizontally positioned rams which act sideways on the beam 17, 18.
GB1557572A 1972-04-05 1972-04-05 Mine roof supports Expired GB1404594A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1557572A GB1404594A (en) 1972-04-05 1972-04-05 Mine roof supports
DE19732315185 DE2315185B2 (en) 1972-04-05 1973-03-27 Reversing device for a self-advancing pit lining element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1557572A GB1404594A (en) 1972-04-05 1972-04-05 Mine roof supports

Publications (1)

Publication Number Publication Date
GB1404594A true GB1404594A (en) 1975-09-03

Family

ID=10061583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1557572A Expired GB1404594A (en) 1972-04-05 1972-04-05 Mine roof supports

Country Status (2)

Country Link
DE (1) DE2315185B2 (en)
GB (1) GB1404594A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133626A (en) * 1989-05-11 1992-07-28 Crucible S.A. Mobile stope support apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2540048C2 (en) * 1975-09-09 1984-01-26 Klöckner-Werke AG, 4100 Duisburg Device with a rear cylinder for a shield support frame traveling with a face conveyor and with a push piston gear for lifting the coal face end of the bed sleeper while moving back
GB2062735B (en) * 1979-11-09 1983-08-10 Dobson Park Ind Coal face support
DE3225615A1 (en) * 1982-07-08 1984-01-12 Gosudarstvennyj proektno-konstruktorskij i eksperimental'nyj institut ugol'nogo mašinostroenija "GIPROUGLEMAŠ", Moskva Mechanised support assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5133626A (en) * 1989-05-11 1992-07-28 Crucible S.A. Mobile stope support apparatus

Also Published As

Publication number Publication date
DE2315185B2 (en) 1974-05-16
DE2315185A1 (en) 1973-10-18

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Legal Events

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