ZA773680B - Improvements in or relating to roof supports - Google Patents

Improvements in or relating to roof supports

Info

Publication number
ZA773680B
ZA773680B ZA00773680A ZA773680A ZA773680B ZA 773680 B ZA773680 B ZA 773680B ZA 00773680 A ZA00773680 A ZA 00773680A ZA 773680 A ZA773680 A ZA 773680A ZA 773680 B ZA773680 B ZA 773680B
Authority
ZA
South Africa
Prior art keywords
relating
roof supports
roof
supports
Prior art date
Application number
ZA00773680A
Other languages
English (en)
Inventor
A Valantin
Original Assignee
Charbonnages De France
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 Charbonnages De France filed Critical Charbonnages De France
Publication of ZA773680B publication Critical patent/ZA773680B/xx

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
    • E21D23/08—Advancing mechanisms
    • E21D23/081—Advancing mechanisms forming parts of the roof supports
    • E21D23/087—Advancing mechanisms forming parts of the roof supports acting directly on the walls of the seam
    • E21D23/088—Advancing mechanisms forming parts of the roof supports acting directly on the walls of the seam by means of wheels, rollers, caterpillars, belts or worm screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D55/00—Endless track vehicles
    • B62D55/08—Endless track units; Parts thereof
    • B62D55/104—Suspension devices for wheels, rollers, bogies or frames
    • B62D55/116—Attitude or position control of chassis by action on suspension, e.g. to compensate for a slope
    • 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
    • E21D23/0017—Pile type supports

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)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Handcart (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Bridges Or Land Bridges (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
ZA00773680A 1976-06-29 1977-06-20 Improvements in or relating to roof supports ZA773680B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7619718A FR2356809A1 (fr) 1976-06-29 1976-06-29 Pile mobile de soutenement continu

Publications (1)

Publication Number Publication Date
ZA773680B true ZA773680B (en) 1978-05-30

Family

ID=9174977

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00773680A ZA773680B (en) 1976-06-29 1977-06-20 Improvements in or relating to roof supports

Country Status (12)

Country Link
US (1) US4109473A (fr)
JP (1) JPS532911A (fr)
AT (1) AT354386B (fr)
AU (1) AU509978B2 (fr)
BE (1) BE856175A (fr)
CA (1) CA1056170A (fr)
DE (1) DE2727655C3 (fr)
ES (1) ES460189A1 (fr)
FR (1) FR2356809A1 (fr)
GB (1) GB1571444A (fr)
PL (1) PL112642B1 (fr)
ZA (1) ZA773680B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1596737A (en) * 1978-05-31 1981-08-26 Dobson Park Ind Track assemblies
FR2459360B1 (fr) * 1979-06-21 1986-04-18 Tim Tech Ind Minieres Systeme pour creuser des galeries souterraines
FR2461095A1 (fr) * 1979-07-06 1981-01-30 Charbonnages De France Portique de soutenement continu glissant a grande ouverture de passage et chapeau glissant
FR2461094A1 (fr) * 1979-07-06 1981-01-30 Charbonnages De France Portique de soutenement glissant
FR2465626A1 (fr) * 1979-07-13 1981-03-27 Charbonnages De France Dispositif d'immobilisation au sol d'un chassis a chenille sans fin
DE3543060C1 (de) * 1985-12-05 1987-02-05 Hemscheidt Maschf Hermann Fahrbarer Unterstuetzungsaufbau
AT388971B (de) * 1986-01-22 1989-09-25 Voest Alpine Ag Auf raupen verfahrbarer abstuetzbock
JP2657249B2 (ja) * 1986-11-25 1997-09-24 東レ・ダウコーニング・シリコーン株式会社 密着性向上剤
CN110667716B (zh) * 2019-10-10 2021-03-09 北京瑞盈智拓科技发展有限公司 一种自调平底盘及车辆

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2826898A (en) * 1948-10-06 1958-03-18 Joy Mfg Co Apparatus for mine roof control
BE535086A (fr) * 1954-01-25
DE1030282B (de) * 1954-03-04 1958-05-22 Eisengiesserei A Beien Rahmenartiges Ausbauglied, insbesondere fuer den Strebausbau
DE1092413B (de) * 1959-03-28 1960-11-10 Beien Maschfab Hydraulisches Strebausbauelement
DE1139084B (de) * 1960-07-13 1962-11-08 Maschf Fahrbares, rahmenartiges Strebausbauglied
DE1171859B (de) * 1960-09-10 1964-06-11 Albert Hamel Abstuetzvorrichtung fuer gebraeches Hangende

Also Published As

Publication number Publication date
DE2727655A1 (de) 1978-01-12
AU2652677A (en) 1979-01-04
DE2727655B2 (de) 1981-02-26
ES460189A1 (es) 1978-05-16
AT354386B (de) 1979-01-10
JPS532911A (en) 1978-01-12
CA1056170A (fr) 1979-06-12
AU509978B2 (en) 1980-06-05
PL199211A1 (pl) 1978-01-30
US4109473A (en) 1978-08-29
FR2356809B1 (fr) 1982-07-02
GB1571444A (en) 1980-07-16
ATA424377A (de) 1979-06-15
BE856175A (fr) 1977-12-27
DE2727655C3 (de) 1981-12-03
PL112642B1 (en) 1980-10-31
FR2356809A1 (fr) 1978-01-27

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