FR1193513A - étançons - Google Patents

étançons

Info

Publication number
FR1193513A
FR1193513A FR1193513DA FR1193513A FR 1193513 A FR1193513 A FR 1193513A FR 1193513D A FR1193513D A FR 1193513DA FR 1193513 A FR1193513 A FR 1193513A
Authority
FR
France
Prior art keywords
prop
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
English (en)
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.)
Acrow Engineers Ltd
Original Assignee
Acrow Engineers 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 Acrow Engineers Ltd filed Critical Acrow Engineers Ltd
Application granted granted Critical
Publication of FR1193513A publication Critical patent/FR1193513A/fr
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
    • E21D15/512—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)
  • Reciprocating Pumps (AREA)
FR1193513D 1957-03-22 1958-03-21 étançons Expired FR1193513A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB947557A GB882246A (en) 1957-03-22 1957-03-22 Improvements in and relating to props

Publications (1)

Publication Number Publication Date
FR1193513A true FR1193513A (fr) 1959-11-03

Family

ID=9872682

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1193513D Expired FR1193513A (fr) 1957-03-22 1958-03-21 étançons

Country Status (3)

Country Link
BE (1) BE596046Q (fr)
FR (1) FR1193513A (fr)
GB (1) GB882246A (fr)

Also Published As

Publication number Publication date
BE596046Q (fr) 1961-04-14
GB882246A (en) 1961-11-15

Similar Documents

Publication Publication Date Title
CH362151A (de) Tazitron
FR1181864A (fr) étançons
FR1183327A (fr) étai
AT208633B (de) Selbstverkäufer
FR1193513A (fr) étançons
FI29019A (fi) Barkspade
FI28956A (fi) Äggförpackning
FR1186071A (fr) étai télescopique
FR71092E (fr) étai télescopique
ES61865Y (es) Fosforera-calendario
ES63308Y (es) Bolsa-percha
AT198981B (de) Pfluggrindel
ES58405Y (es) Interruptor-conmutador
ES58614Y (es) Antetrén-universal
ES58719Y (es) Frasco-envase
ES59046Y (es) Toalla-bolso
ES59622Y (es) Bolsa-estuche
ES59795Y (es) Llave-llavero
ES59893Y (es) Recipiente-horno
ES60032Y (es) Anillo-junta
ES60074Y (es) Esclerómetro
ES60353Y (es) Calzoncillo-faja
ES61045Y (es) Construocones
ES61283Y (es) Tarjeta- sobre
AT199534B (de) Malschloß