FR2263370A1 - Mine gallery roof support - has top member connected to swinging boom by cylinder operated intermediate arm - Google Patents

Mine gallery roof support - has top member connected to swinging boom by cylinder operated intermediate arm

Info

Publication number
FR2263370A1
FR2263370A1 FR7407886A FR7407886A FR2263370A1 FR 2263370 A1 FR2263370 A1 FR 2263370A1 FR 7407886 A FR7407886 A FR 7407886A FR 7407886 A FR7407886 A FR 7407886A FR 2263370 A1 FR2263370 A1 FR 2263370A1
Authority
FR
France
Prior art keywords
roof support
intermediate arm
boom
member connected
top member
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.)
Granted
Application number
FR7407886A
Other languages
French (fr)
Other versions
FR2263370B3 (en
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
Priority to FR7407886A priority Critical patent/FR2263370A1/en
Publication of FR2263370A1 publication Critical patent/FR2263370A1/en
Application granted granted Critical
Publication of FR2263370B3 publication Critical patent/FR2263370B3/fr
Granted 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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement

Abstract

A mine gallery roof support device has a sledge (1) carrying a boom (2) which can be raised and lowered by swinging about a pivot point (3) on the sledge, by the operation of a jack (4) between them, so that a roof support (5) can be maintained against the roof, parallel to the roof, this action being assisted by an intermediate arm (6) between the upper end of the boom and the roof support. This intermediate arm pivots about a hinge (7) nearly in the middle, and connects to the roof support by another hinge (8) one end, while the opposite end is connected at another hinge (10) to the piston of a nearly horizontal actuator cylinder (9) connected to the boom, in turn connected to the boom by a pivot pin (11) at its other end.
FR7407886A 1974-03-04 1974-03-04 Mine gallery roof support - has top member connected to swinging boom by cylinder operated intermediate arm Granted FR2263370A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7407886A FR2263370A1 (en) 1974-03-04 1974-03-04 Mine gallery roof support - has top member connected to swinging boom by cylinder operated intermediate arm

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7407886A FR2263370A1 (en) 1974-03-04 1974-03-04 Mine gallery roof support - has top member connected to swinging boom by cylinder operated intermediate arm

Publications (2)

Publication Number Publication Date
FR2263370A1 true FR2263370A1 (en) 1975-10-03
FR2263370B3 FR2263370B3 (en) 1976-04-09

Family

ID=9136004

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407886A Granted FR2263370A1 (en) 1974-03-04 1974-03-04 Mine gallery roof support - has top member connected to swinging boom by cylinder operated intermediate arm

Country Status (1)

Country Link
FR (1) FR2263370A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114387A (en) * 1976-07-07 1978-09-19 Dowty Mining Equipment Limited Mine roof support
FR2456210A1 (en) * 1979-05-08 1980-12-05 Gewerk Eisenhuette Westfalia ELONGATE FORMING DEVICE COMPRISING A VISOR CAPABLE OF PIVOTING WITH RESPECT TO THE ROOF
CN114104969A (en) * 2021-11-12 2022-03-01 郑州合新智能装备有限公司 Tunnel frame canopy machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4114387A (en) * 1976-07-07 1978-09-19 Dowty Mining Equipment Limited Mine roof support
FR2456210A1 (en) * 1979-05-08 1980-12-05 Gewerk Eisenhuette Westfalia ELONGATE FORMING DEVICE COMPRISING A VISOR CAPABLE OF PIVOTING WITH RESPECT TO THE ROOF
CN114104969A (en) * 2021-11-12 2022-03-01 郑州合新智能装备有限公司 Tunnel frame canopy machine

Also Published As

Publication number Publication date
FR2263370B3 (en) 1976-04-09

Similar Documents

Publication Publication Date Title
GB1432640A (en) Article handling apparatus
GB1534562A (en) Track laying tractor with movable boom which can be tilted laterally
GB1278513A (en) Counterweighted excavators or like machines
FR2263370A1 (en) Mine gallery roof support - has top member connected to swinging boom by cylinder operated intermediate arm
GB1330093A (en) Grab bucket assembly
GB988844A (en) Hydraulically actuated shovel machines
GB1227715A (en)
ES269665A1 (en) Mechanical shovel capable of working as a lifting device or loader
FR2413505A1 (en) STABILIZER ASSEMBLY
GB1509522A (en) Elevating devices
CN207361641U (en) A kind of portable color coil of strip hanging apparatus
GB1396043A (en) Lifting jack
GB1379427A (en) Crust breaking machine
GB1487119A (en) Lifting devices
ES464787A1 (en) Roof support
GB1079187A (en) Multipartite capping or mine roof supports
FR2293614A1 (en) Mechanism swinging arm through large angle - has two actuator cylinders operated in sequence to share swinging action
GB1175243A (en) Support Link for a Loader Lift Arm and the Combination of said Link and a Bucket Loader.
GB767302A (en) An improved excavator
FR2330812A1 (en) Hydraulic excavator with lifting tackle arrangement - carries free fall tool such as ball at its free end
FR2374505A1 (en) Mine gallery roof material removing tool - has tool holder swung on head which is swung at end of support arm
CN2187677Y (en) Single body hydraulic prop beam clamping device
EP0200139A3 (en) Driving device for a door with a wing being pivotable around an intermediate horizontal pivot
GB1517512A (en) Turnover apparatus
FR2265970A1 (en) Hydraulic prop for mines - has vertically pivoting arm for supporting roof plate universally mounted on floor base