GB972367A - Hydraulic roof-support for mines - Google Patents

Hydraulic roof-support for mines

Info

Publication number
GB972367A
GB972367A GB18072/61A GB1807261A GB972367A GB 972367 A GB972367 A GB 972367A GB 18072/61 A GB18072/61 A GB 18072/61A GB 1807261 A GB1807261 A GB 1807261A GB 972367 A GB972367 A GB 972367A
Authority
GB
United Kingdom
Prior art keywords
cap
valve
incorporates
props
mines
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
GB18072/61A
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.)
EBERHARD VON CAMPENHAUSEN
WILLLY EGGEMANN
Original Assignee
EBERHARD VON CAMPENHAUSEN
WILLLY EGGEMANN
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 EBERHARD VON CAMPENHAUSEN, WILLLY EGGEMANN filed Critical EBERHARD VON CAMPENHAUSEN
Publication of GB972367A publication Critical patent/GB972367A/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
    • E21D23/0069—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 without essential advancing shifting devices
    • 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
    • E21D15/15—Means counteracting entry of dirt; Built-in cleaning devices
    • E21D15/155—Built-in cleaning devices
    • 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
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props

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)
  • Structural Engineering (AREA)
  • Prostheses (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

972,367. Hydraulic pit props. W. EGGEMANN, and E. VON CAMPENHAUSEN, [trading as HERMANN SCHWARZ KOMM.- GES.]. May 18, 1961 [May 21, 1960], No. 18072/61. Heading E1E. An hydraulic pit prop, Fig. 1, comprising an upper piston 11 sliding within a lower cylinder 10 is provided with an axially disposed pressure pipe 20 for the supply of pressure fluid thereto and a clamp 24 for detachably receiving a control cap, Fig. 2, for connection to a mains supply or a control cap, Fig. 3, having built in pump means 32, 33. The cap, Fig. 2, incorporates an inlet valve 29 and a combined safety and release valve 26 whilst the cap of Fig. 3 incorporates a like valve unit 26 and a check valve. A group of props may be mounted to form a frame and the caps thereof interconnected to a common control device, see Figs. 5 and 6 (not shown).
GB18072/61A 1960-05-21 1961-05-18 Hydraulic roof-support for mines Expired GB972367A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH27933A DE1132878B (en) 1960-05-21 1960-05-21 Hydraulic support element for pit construction

Publications (1)

Publication Number Publication Date
GB972367A true GB972367A (en) 1964-10-14

Family

ID=7430954

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18072/61A Expired GB972367A (en) 1960-05-21 1961-05-18 Hydraulic roof-support for mines

Country Status (4)

Country Link
DE (1) DE1132878B (en)
FR (1) FR1289337A (en)
GB (1) GB972367A (en)
NL (1) NL264813A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL300061A (en) * 1963-08-19

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2136080A (en) * 1934-09-19 1938-11-08 Sullivan Machinery Co Hydraulic abutment device
FR1075691A (en) * 1953-03-16 1954-10-19 New prop
DE1023436B (en) * 1955-11-24 1958-01-30 Hermann Schwarz Kommanditgesel Hydraulic pit ram
BE557875A (en) * 1956-05-28
DE1024465B (en) * 1957-05-23 1958-02-20 Kronprinz Ag Hydraulic pit ram

Also Published As

Publication number Publication date
NL264813A (en)
DE1132878B (en) 1962-07-12
FR1289337A (en) 1962-03-30

Similar Documents

Publication Publication Date Title
GB1126940A (en) A multi-stage telescopic hydraulic pit prop
GB1010905A (en) Hydraulically operated mine prop
GB961983A (en) Hydraulically operable mine prop
ES374955A1 (en) Method and apparatus for controlling the expansion and retraction of a telescopic cylinder assembly
GB972367A (en) Hydraulic roof-support for mines
GB977800A (en) Improvements in or relating to mine roof supports
GB846730A (en) Improvements in or relating to hydraulic mine supporting devices
GB794064A (en) Improvements in or relating to hydraulic pit props
GB894292A (en) Improvements in or relating to hydraulic props, particularly pit props
GB846783A (en) Improvements in or relating to mine supports
GB956482A (en) A hydraulic pit prop
GB937290A (en) Valve assembly, for deep drilling scavenging pumps in particular
GB980581A (en) Improvements in hydraulic roof supports or chocks for mines
GB1022443A (en) Improvements in or relating to load supporting props assemblies
GB1060500A (en) Improvements in or relating to yielding roof supports for mines
GB980822A (en) Improvements in and relating to props or jacks
GB902188A (en) Improvements in or relating to hydraulic supports
GB943658A (en) A new or improved colliery arch
GB834976A (en) Improvements in or relating to pit props and like support elements
GB1022442A (en) Improvements in or relating to load supporting props
GB1006710A (en) Yielding-arch mine roof support system
GB1052405A (en)
GB1026136A (en) Hydraulic pit prop with extended lift
GB876483A (en) Improvements in or relating to hydraulic pillar supports for mines
GB1112940A (en) Hydraulic prop