FR1175441A - hydraulic prop for supports - Google Patents

hydraulic prop for supports

Info

Publication number
FR1175441A
FR1175441A FR1175441DA FR1175441A FR 1175441 A FR1175441 A FR 1175441A FR 1175441D A FR1175441D A FR 1175441DA FR 1175441 A FR1175441 A FR 1175441A
Authority
FR
France
Prior art keywords
supports
hydraulic prop
prop
hydraulic
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
Other languages
French (fr)
Inventor
Hans Hemscheidt
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.)
Hemscheidt Hermann Maschinenfabrik GmbH and Co
Hermann Hemscheidit Maschinenfabrik GmbH and Co
Original Assignee
Hemscheidt Hermann Maschinenfabrik GmbH and Co
Hermann Hemscheidit Maschinenfabrik GmbH and Co
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 Hemscheidt Hermann Maschinenfabrik GmbH and Co, Hermann Hemscheidit Maschinenfabrik GmbH and Co filed Critical Hemscheidt Hermann Maschinenfabrik GmbH and Co
Application granted granted Critical
Publication of FR1175441A publication Critical patent/FR1175441A/en
Expired legal-status Critical Current

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
    • E21D15/50—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
    • E21D15/517—Extension elements

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)
FR1175441D 1956-04-09 1957-03-22 hydraulic prop for supports Expired FR1175441A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1175441X 1956-04-09

Publications (1)

Publication Number Publication Date
FR1175441A true FR1175441A (en) 1959-03-26

Family

ID=7729709

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1175441D Expired FR1175441A (en) 1956-04-09 1957-03-22 hydraulic prop for supports

Country Status (1)

Country Link
FR (1) FR1175441A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972651A (en) * 1975-04-09 1976-08-03 Nasa Solar-powered pump
FR2503688A1 (en) * 1981-04-10 1982-10-15 Gewerk Eisenhuette Westfalia HYDRAULIC PRESSER CYLINDER FOR PRESSURE RIPAGE OF TUBES AND THE LIKE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972651A (en) * 1975-04-09 1976-08-03 Nasa Solar-powered pump
FR2503688A1 (en) * 1981-04-10 1982-10-15 Gewerk Eisenhuette Westfalia HYDRAULIC PRESSER CYLINDER FOR PRESSURE RIPAGE OF TUBES AND THE LIKE

Similar Documents

Publication Publication Date Title
FR1183500A (en) Compositions for laundry
FR1178174A (en) hydraulic mine prop
FR1181300A (en) hydraulic prop
FR1186287A (en) hydraulic prop
FR1149799A (en) Volie for boat
FR1174801A (en) hydraulic prop for mines
FR1175441A (en) hydraulic prop for supports
FR1161695A (en) Extension for props
FR1152314A (en) Hydraulic cylinders
FR1185896A (en) Support for getters
FR1151486A (en) Self-scrubber for hams
FR1201393A (en) Hydraulic machine
FR1196318A (en) hydraulic prop for mine
FR1175837A (en) Improvements made to extendable beams to support formwork
FR1185396A (en) Tubes for high stress
FR1166381A (en) adjustable prop for constructions
FR1187010A (en) Composite support for wells
FR1179862A (en) Frame for film-plan
FR1159874A (en) Handguards for cycles
FR1172249A (en) Hydraulic coupler
FR1181886A (en) telescopic hydraulic prop
FR1187688A (en) Improvements to hydraulic props for mines
FR1180410A (en) Caving valve for hydraulic mine prop
FR1160342A (en) Calendar for horticulturalists
FR1177675A (en) Mine prop valve