BE482083A - - Google Patents

Info

Publication number
BE482083A
BE482083A BE482083DA BE482083A BE 482083 A BE482083 A BE 482083A BE 482083D A BE482083D A BE 482083DA BE 482083 A BE482083 A BE 482083A
Authority
BE
Belgium
Application number
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.)
Publication of BE482083A publication Critical patent/BE482083A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/46—Telescopic props with load-measuring devices; with alarm devices
    • E21D15/465—Telescopic props with load-measuring devices; with alarm devices with essential hydraulic or pneumatic details
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/005—Props; Chocks, e.g. made of flexible containers filled with backfilling material characterised by the material
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Safety Valves (AREA)
  • Actuator (AREA)
BE482083D 1947-04-24 BE482083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10974/47A GB641894A (en) 1947-04-24 1947-04-24 Improvements in or relating to pit-props

Publications (1)

Publication Number Publication Date
BE482083A true BE482083A (en)

Family

ID=9977734

Family Applications (1)

Application Number Title Priority Date Filing Date
BE482083D BE482083A (en) 1947-04-24

Country Status (4)

Country Link
US (1) US2474464A (en)
BE (1) BE482083A (en)
FR (1) FR965222A (en)
GB (1) GB641894A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1068200B (en) * 1959-11-05
US2721051A (en) * 1949-04-07 1955-10-18 Lobbe Armin Hydraulic pit props
NL152226B (en) * 1949-04-07 Glaverbel METHOD AND APPARATUS FOR MANUFACTURING FLAT GLASS, IN ADDITION TO FLAT GLASS MANUFACTURED USING THIS METHOD.
US2695764A (en) * 1949-10-01 1954-11-30 Grebe Konrad Mine prop
US2830563A (en) * 1954-03-26 1958-04-15 Burton B Burckhalter Automatic jack leg
DE1131625B (en) * 1955-08-13 1962-06-20 Kronprinz Ag Hydraulic pit ram
DE1127841B (en) * 1955-08-13 1962-04-19 Kronprinz Ag Hydraulic pit ram
US2973178A (en) * 1956-10-29 1961-02-28 Schwarz Hermann Kg Two-part metallic mine prop
BE570316A (en) * 1957-08-13
US3463559A (en) * 1967-02-20 1969-08-26 Int Harvester Co Hydraulic track adjuster for tractor
US4142449A (en) * 1976-02-03 1979-03-06 Thyssen Industrie Ag Hydraulic mine prop
DE202004012138U1 (en) * 2004-08-02 2004-10-07 Dbt Gmbh Stamp head storage between cap and stamp of a shield removal frame
AU2013206571A1 (en) * 2012-08-17 2014-03-06 Mine Support Products (Pty) Ltd Prop
CN103670459B (en) * 2013-11-30 2015-08-05 河北工业大学 A kind of hydraulic prop for mine pressure real-time monitor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US752201A (en) * 1904-02-16 Fluid-pressure jack
US1418336A (en) * 1919-01-13 1922-06-06 Harold I Stage Pneumatic drill column
US1744673A (en) * 1927-06-10 1930-01-21 Timothy C Pomeroy Hydraulic jack

Also Published As

Publication number Publication date
FR965222A (en) 1950-09-06
GB641894A (en) 1950-08-23
US2474464A (en) 1949-06-28

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