GB1082663A - Improvements relating to control means of mine roof supports - Google Patents

Improvements relating to control means of mine roof supports

Info

Publication number
GB1082663A
GB1082663A GB2312/64A GB231264A GB1082663A GB 1082663 A GB1082663 A GB 1082663A GB 2312/64 A GB2312/64 A GB 2312/64A GB 231264 A GB231264 A GB 231264A GB 1082663 A GB1082663 A GB 1082663A
Authority
GB
United Kingdom
Prior art keywords
carried
control means
switch
improvements relating
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
GB2312/64A
Inventor
Frank Town
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.)
Dobson Ltd W E & F
WE&F Dobson Ltd
Original Assignee
Dobson Ltd W E & F
WE&F Dobson 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 Dobson Ltd W E & F, WE&F Dobson Ltd filed Critical Dobson Ltd W E & F
Priority to GB2312/64A priority Critical patent/GB1082663A/en
Priority to DED46240A priority patent/DE1245293B/en
Priority to BE658326D priority patent/BE658326A/xx
Priority to FR2271A priority patent/FR1421042A/en
Publication of GB1082663A publication Critical patent/GB1082663A/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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • 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
    • E21D23/12—Control, e.g. using remote control
    • 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
    • E21D23/12—Control, e.g. using remote control
    • E21D23/14—Effecting automatic sequential movement of supports, e.g. one behind the other
    • E21D23/144—Measuring the advance of support units with respect to internal points of reference, e.g. with respect to neighboring support units or extension of a cylinder
    • 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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/26—Hydraulic or pneumatic control
    • 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)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)

Abstract

1,082,663. Hydraulic rams. W. E. & F. DOBSON Ltd. Jan. 14, 1965 [Jan. 18, 1964], No. 2312/64. Heading F1P. The supply of hydraulic fluid to a horizontal ram cylinder 1 for advancing a coal face conveyer is cut-off at the end of the outward stroke by the closure of an electric switch 4 or a pilot valve effected when a coil spring 17 carried by the piston 16 moves a cam slide 9 carried by the cylinder end block 12 to displace a plunger 6 also in said block 12 and connected to the switch 4. A similar switch 3, plunger 5 and cam slide 18 carried by the opposite cylinder end block are actuated by a spring-biased striker 24 carried by the piston 16.
GB2312/64A 1964-01-18 1964-01-18 Improvements relating to control means of mine roof supports Expired GB1082663A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB2312/64A GB1082663A (en) 1964-01-18 1964-01-18 Improvements relating to control means of mine roof supports
DED46240A DE1245293B (en) 1964-01-18 1965-01-14 Hydraulic back cylinder for backing off expansion units arranged along the coal face
BE658326D BE658326A (en) 1964-01-18 1965-01-15
FR2271A FR1421042A (en) 1964-01-18 1965-01-18 Control device for mine roof support support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2312/64A GB1082663A (en) 1964-01-18 1964-01-18 Improvements relating to control means of mine roof supports

Publications (1)

Publication Number Publication Date
GB1082663A true GB1082663A (en) 1967-09-06

Family

ID=9737334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2312/64A Expired GB1082663A (en) 1964-01-18 1964-01-18 Improvements relating to control means of mine roof supports

Country Status (4)

Country Link
BE (1) BE658326A (en)
DE (1) DE1245293B (en)
FR (1) FR1421042A (en)
GB (1) GB1082663A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113217068B (en) * 2021-04-28 2024-08-16 太原理工大学 Detection device and method for working face, terminal and storage medium

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922583C (en) * 1942-12-13 1955-01-20 Gerhard Werner Method and device for laying face lifting equipment and / or face building components
DE938003C (en) * 1951-09-12 1956-01-19 Eugen Muething Setting device for multi-part pit punches
FR1307469A (en) * 1961-12-01 1962-10-26 Dobson Ltd W E & F Hydraulic pressure amplifier, applicable or incorporated in a mine ceiling support device

Also Published As

Publication number Publication date
FR1421042A (en) 1965-12-10
DE1245293B (en) 1967-07-27
BE658326A (en) 1965-04-30

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