GB1218113A - Improvements to support piers for mines - Google Patents

Improvements to support piers for mines

Info

Publication number
GB1218113A
GB1218113A GB05099/68A GB1509968A GB1218113A GB 1218113 A GB1218113 A GB 1218113A GB 05099/68 A GB05099/68 A GB 05099/68A GB 1509968 A GB1509968 A GB 1509968A GB 1218113 A GB1218113 A GB 1218113A
Authority
GB
United Kingdom
Prior art keywords
mines
advancing
support piers
props
mine roof
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
GB05099/68A
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.)
Bennes Marrel SA
Original Assignee
Bennes Marrel SA
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 Bennes Marrel SA filed Critical Bennes Marrel SA
Publication of GB1218113A publication Critical patent/GB1218113A/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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • E21D23/085—Advancing mechanisms forming parts of the roof supports acting on a conveyor or a guide for the mining machine
    • 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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/48—Analogue computers for specific processes, systems or devices, e.g. simulators
    • G06G7/57—Analogue computers for specific processes, systems or devices, e.g. simulators for fluid flow ; for distribution networks

Abstract

1,218,113. Advancing mine roof supports. BENNES MARREL S.A. 29 March, 1968 [3 April, 1967], No. 15099/68. Heading E1P. In an advancing mine roof support assembly comprising four props incorporated in a rectangular frame each prop is connected to the advancing jack 7, 8 by a chain 10 whilst the forward props 1 are connected thereto by additional chains 17, the chains being arranged as shown.
GB05099/68A 1967-04-03 1968-03-29 Improvements to support piers for mines Expired GB1218113A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR48489A FR1526170A (en) 1967-04-03 1967-04-03 Improvements to support piles, especially for mines

Publications (1)

Publication Number Publication Date
GB1218113A true GB1218113A (en) 1971-01-06

Family

ID=9694705

Family Applications (1)

Application Number Title Priority Date Filing Date
GB05099/68A Expired GB1218113A (en) 1967-04-03 1968-03-29 Improvements to support piers for mines

Country Status (3)

Country Link
US (1) US3550383A (en)
FR (1) FR1526170A (en)
GB (1) GB1218113A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5842517A (en) * 1997-05-02 1998-12-01 Davis-Lynch, Inc. Anti-rotational cementing apparatus

Also Published As

Publication number Publication date
FR1526170A (en) 1968-05-24
US3550383A (en) 1970-12-29

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