FR2360742A1 - Advancing pit prop for deep seams - has side support with opening and flap for delivery of cut material onto conveyor - Google Patents

Advancing pit prop for deep seams - has side support with opening and flap for delivery of cut material onto conveyor

Info

Publication number
FR2360742A1
FR2360742A1 FR7617162A FR7617162A FR2360742A1 FR 2360742 A1 FR2360742 A1 FR 2360742A1 FR 7617162 A FR7617162 A FR 7617162A FR 7617162 A FR7617162 A FR 7617162A FR 2360742 A1 FR2360742 A1 FR 2360742A1
Authority
FR
France
Prior art keywords
flap
pit prop
delivery
opening
cut material
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
FR7617162A
Other languages
French (fr)
Other versions
FR2360742B1 (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 FR7617162A priority Critical patent/FR2360742A1/en
Publication of FR2360742A1 publication Critical patent/FR2360742A1/en
Application granted granted Critical
Publication of FR2360742B1 publication Critical patent/FR2360742B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK 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 OR ROCK 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Abstract

An advancing pit prop. is designed for exploitation of seams higher than the pit prop. itself. The pit prop. has a floor member (1) supporting a roof member (4) with a telescopic cylinder (6) between them, and a cranked carrier structure (7) at the rear, designed to hold back fallen material (13) which may be cut from a higher level. The lower, sloping part of the carrier structure incorporates a sliding flap (27) which can be raised by a cylinder (28) to allow the cut material to pass through onto the floor members. A conveyor (29) can be installed on the floor member to carry away the material which has passed through. Other variations of design show different types of flap and different operating devices, e.g. a swinging flap.
FR7617162A 1976-05-21 1976-05-21 Advancing pit prop for deep seams - has side support with opening and flap for delivery of cut material onto conveyor Granted FR2360742A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7617162A FR2360742A1 (en) 1976-05-21 1976-05-21 Advancing pit prop for deep seams - has side support with opening and flap for delivery of cut material onto conveyor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7617162A FR2360742A1 (en) 1976-05-21 1976-05-21 Advancing pit prop for deep seams - has side support with opening and flap for delivery of cut material onto conveyor

Publications (2)

Publication Number Publication Date
FR2360742A1 true FR2360742A1 (en) 1978-03-03
FR2360742B1 FR2360742B1 (en) 1978-11-17

Family

ID=9174064

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7617162A Granted FR2360742A1 (en) 1976-05-21 1976-05-21 Advancing pit prop for deep seams - has side support with opening and flap for delivery of cut material onto conveyor

Country Status (1)

Country Link
FR (1) FR2360742A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388989A1 (en) * 1977-04-26 1978-11-24 Bennes Marrel Movable support for mine gallery - has hinged beam with support head carried on base hydraulic ram operated with spoil hopper
EP0033152A1 (en) * 1980-01-25 1981-08-05 Centrum Mechanizacji Gornictwa "Komag" Mining roof support, in particular shield-type support
DE3107955A1 (en) * 1980-05-06 1982-01-21 Központi Bányászati Fejlesztési Intézet, 1027 Budapest DEVICE FOR UNDERGROUND MINING, ESPECIALLY FOR THE EXTRACTION OF MIGHTY FLOORS
DE3841061A1 (en) * 1987-12-08 1989-06-22 Karagandinskij Polt Institut Mechanised support section

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2388989A1 (en) * 1977-04-26 1978-11-24 Bennes Marrel Movable support for mine gallery - has hinged beam with support head carried on base hydraulic ram operated with spoil hopper
EP0033152A1 (en) * 1980-01-25 1981-08-05 Centrum Mechanizacji Gornictwa "Komag" Mining roof support, in particular shield-type support
DE3107955A1 (en) * 1980-05-06 1982-01-21 Központi Bányászati Fejlesztési Intézet, 1027 Budapest DEVICE FOR UNDERGROUND MINING, ESPECIALLY FOR THE EXTRACTION OF MIGHTY FLOORS
DE3841061A1 (en) * 1987-12-08 1989-06-22 Karagandinskij Polt Institut Mechanised support section

Also Published As

Publication number Publication date
FR2360742B1 (en) 1978-11-17

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Legal Events

Date Code Title Description
CD Change of name or company name
TP Transmission of property
ST Notification of lapse