FR648667A - Vérin tracteur spirale - Google Patents

Vérin tracteur spirale

Info

Publication number
FR648667A
FR648667A FR648667DA FR648667A FR 648667 A FR648667 A FR 648667A FR 648667D A FR648667D A FR 648667DA FR 648667 A FR648667 A FR 648667A
Authority
FR
France
Prior art keywords
tractor cylinder
spiral
spiral tractor
cylinder
tractor
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)
Inventor
Gabriello Osanni
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 filed Critical
Application granted granted Critical
Publication of FR648667A publication Critical patent/FR648667A/fr
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
    • B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
FR648667D 1928-02-11 1928-02-11 Vérin tracteur spirale Expired FR648667A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR648667T 1928-02-11

Publications (1)

Publication Number Publication Date
FR648667A true FR648667A (fr) 1928-12-12

Family

ID=9002838

Family Applications (1)

Application Number Title Priority Date Filing Date
FR648667D Expired FR648667A (fr) 1928-02-11 1928-02-11 Vérin tracteur spirale

Country Status (1)

Country Link
FR (1) FR648667A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102627244A (zh) * 2012-03-27 2012-08-08 昆山中慈工控科技开发有限公司 井下通过电缆线作业利用液体压力增力的电动千斤

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102627244A (zh) * 2012-03-27 2012-08-08 昆山中慈工控科技开发有限公司 井下通过电缆线作业利用液体压力增力的电动千斤

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