GB774109A - Improvements in or relating to mine roof support assemblies - Google Patents

Improvements in or relating to mine roof support assemblies

Info

Publication number
GB774109A
GB774109A GB1771053A GB1771053A GB774109A GB 774109 A GB774109 A GB 774109A GB 1771053 A GB1771053 A GB 1771053A GB 1771053 A GB1771053 A GB 1771053A GB 774109 A GB774109 A GB 774109A
Authority
GB
United Kingdom
Prior art keywords
mine roof
tongue
wedge
relating
roof support
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
GB1771053A
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.)
EISENWERK WANHEIM GmbH
Original Assignee
EISENWERK WANHEIM GmbH
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 EISENWERK WANHEIM GmbH filed Critical EISENWERK WANHEIM GmbH
Publication of GB774109A publication Critical patent/GB774109A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B15/00—Wheels or wheel attachments designed for increasing traction
    • B60B15/26—Auxiliary wheels or rings with traction-increasing surface attachable to the main wheel body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
    • B67D7/06—Details or accessories
    • B67D7/08—Arrangements of devices for controlling, indicating, metering or registering quantity or price of liquid transferred
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/08—Cap joints for obtaining a coal-face free of pit-props
    • E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

774,109. Mine roof supports. EISENWERK WANHEIM GES. June 25, 1953 [April 21, 1953], No,. 17710/53. Class 20(2) Mine roof supports, comprising members I, II connected end to end by tongue 2 and fork 3, are pivoted together by a bolt 8 engaging a slot 4 in the tongue which has two faces 7a, 7b one of which is adapted to be engaged by a wedge 10 in a kidneyshaped hole 9 which allows the wedge, by means of a reduced part 10b, to be moved past the end of the tongue 2 to the other end of the holes. The wedge has projections 10d, 10e at the ends to prevent removal. The members I, II are of box section and have teeth to engage mine props.
GB1771053A 1953-04-21 1953-06-25 Improvements in or relating to mine roof support assemblies Expired GB774109A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1092757X 1953-04-21

Publications (1)

Publication Number Publication Date
GB774109A true GB774109A (en) 1957-05-08

Family

ID=7722056

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1771053A Expired GB774109A (en) 1953-04-21 1953-06-25 Improvements in or relating to mine roof support assemblies

Country Status (3)

Country Link
BE (1) BE525250A (en)
FR (1) FR1092757A (en)
GB (1) GB774109A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091088A (en) * 1958-05-30 1963-05-28 Vanwersch Aloys Support bar for underground workings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091088A (en) * 1958-05-30 1963-05-28 Vanwersch Aloys Support bar for underground workings

Also Published As

Publication number Publication date
BE525250A (en) 1956-05-11
FR1092757A (en) 1955-04-27

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