GB1007113A - Improvements in or relating to pressure fluid ram devices - Google Patents

Improvements in or relating to pressure fluid ram devices

Info

Publication number
GB1007113A
GB1007113A GB1730163A GB1730163A GB1007113A GB 1007113 A GB1007113 A GB 1007113A GB 1730163 A GB1730163 A GB 1730163A GB 1730163 A GB1730163 A GB 1730163A GB 1007113 A GB1007113 A GB 1007113A
Authority
GB
United Kingdom
Prior art keywords
conveyer
ram
piston
bar
belt
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
GB1730163A
Inventor
Jeffrey William Seddon
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 Ltd
Original Assignee
Gullick 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 Ltd filed Critical Gullick Ltd
Priority to GB1730163A priority Critical patent/GB1007113A/en
Publication of GB1007113A publication Critical patent/GB1007113A/en
Expired 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0065—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices driven, or automatically, e.g. electrically-hydraulically controlled
    • 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086—Armoured conveyors shifting devices

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)
  • Mechanical Engineering (AREA)
  • Framework For Endless Conveyors (AREA)

Abstract

1,007,113. Pushing and pulling jacks. GULLICK Ltd. March 18, 1964 [May 2, 1963], No. 17301/63. Heading B8J. A conveyer C in a mine is pushed over by a short double-acting ram, comprising a cylinder 14 and piston 15, carried on a base 10 on which are hydraulic props 11, 12 supporting a roof bar 13. After pushing over the conveyer C the ram is used to advance the base 10 up to the conveyer. An elongated rigid bar 16 is attached to the conveyer C at 17 and extends into the base 10 in which it is free to slide. A belt 16a with a small amount of slack is attached to the bar 16 at each end 18, 19 and passes between a ram 22 and an anvil 23 of a clutching device with an hydraulic cylinder 21. To advance the conveyer pressure fluid is fed to the cylinder 21 so that the belt 16a is clamped between the ram 22 and anvil 23. A sequence valve (not shown) then allows pressure to build up behind the piston 15 so that the belt 16a and bar 16 are advanced a short distance equal to the stroke of the piston 15 thus advancing the conveyer C. At the end of this stroke ram 22 is released and piston 15 retracted without moving the belt 16a or bar 16. This cycle is repeated until the conveyer has been advanced step-by-step the required amount. To draw the base 10 carrying the props 11, 12 and roof bar 13 up to the conveyer C the action of the piston 15 is reversed with respect to the action of the ram 22. The several necessary short strokes of piston 15 and ram 22 are caused to take plaee automatically by valve mechanisms (not shown).
GB1730163A 1963-05-02 1963-05-02 Improvements in or relating to pressure fluid ram devices Expired GB1007113A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1730163A GB1007113A (en) 1963-05-02 1963-05-02 Improvements in or relating to pressure fluid ram devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1730163A GB1007113A (en) 1963-05-02 1963-05-02 Improvements in or relating to pressure fluid ram devices

Publications (1)

Publication Number Publication Date
GB1007113A true GB1007113A (en) 1965-10-13

Family

ID=10092777

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1730163A Expired GB1007113A (en) 1963-05-02 1963-05-02 Improvements in or relating to pressure fluid ram devices

Country Status (1)

Country Link
GB (1) GB1007113A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107323470A (en) * 2017-06-15 2017-11-07 山西煤炭进出口集团科技发展有限公司 A kind of certainly mobile piston shoes of step-by-step movement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107323470A (en) * 2017-06-15 2017-11-07 山西煤炭进出口集团科技发展有限公司 A kind of certainly mobile piston shoes of step-by-step movement
CN107323470B (en) * 2017-06-15 2023-04-18 山西煤炭进出口集团科技发展有限公司 Stepping self-moving sliding shoe

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