FR1006841A - Automatic retaining device for telescopic element - Google Patents

Automatic retaining device for telescopic element

Info

Publication number
FR1006841A
FR1006841A FR1006841DA FR1006841A FR 1006841 A FR1006841 A FR 1006841A FR 1006841D A FR1006841D A FR 1006841DA FR 1006841 A FR1006841 A FR 1006841A
Authority
FR
France
Prior art keywords
retaining device
telescopic element
automatic retaining
automatic
telescopic
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)
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.)
FIXATOR ETS
Original Assignee
FIXATOR ETS
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 FIXATOR ETS filed Critical FIXATOR ETS
Application granted granted Critical
Publication of FR1006841A publication Critical patent/FR1006841A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/30—Constructional features with positive brakes or locks
    • 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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/36—Telescopic props with parts held relatively to each other by friction or gripping by a tiltable collar surrounding one or both parts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR1006841D 1949-12-01 1949-12-01 Automatic retaining device for telescopic element Expired FR1006841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1006841T 1949-12-01

Publications (1)

Publication Number Publication Date
FR1006841A true FR1006841A (en) 1952-04-28

Family

ID=9566113

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1006841D Expired FR1006841A (en) 1949-12-01 1949-12-01 Automatic retaining device for telescopic element

Country Status (1)

Country Link
FR (1) FR1006841A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006815B (en) * 1955-09-08 1957-04-25 Hermann Schwarz Kommanditgesel Device for stripping off offset backs or the like on pit punches
US2839319A (en) * 1955-09-19 1958-06-17 Gen Motors Corp Rod clamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1006815B (en) * 1955-09-08 1957-04-25 Hermann Schwarz Kommanditgesel Device for stripping off offset backs or the like on pit punches
US2839319A (en) * 1955-09-19 1958-06-17 Gen Motors Corp Rod clamp

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