FR1399411A - Flèche extensible pour grue - Google Patents

Flèche extensible pour grue

Info

Publication number
FR1399411A
FR1399411A FR979494A FR979494A FR1399411A FR 1399411 A FR1399411 A FR 1399411A FR 979494 A FR979494 A FR 979494A FR 979494 A FR979494 A FR 979494A FR 1399411 A FR1399411 A FR 1399411A
Authority
FR
France
Prior art keywords
crane
extendable boom
extendable
boom
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
FR979494A
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.)
DROTT Manufacturing CORP
Original Assignee
DROTT Manufacturing CORP
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 DROTT Manufacturing CORP filed Critical DROTT Manufacturing CORP
Priority to FR979494A priority Critical patent/FR1399411A/fr
Application granted granted Critical
Publication of FR1399411A publication Critical patent/FR1399411A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
FR979494A 1964-06-24 1964-06-24 Flèche extensible pour grue Expired FR1399411A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR979494A FR1399411A (fr) 1964-06-24 1964-06-24 Flèche extensible pour grue

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR979494A FR1399411A (fr) 1964-06-24 1964-06-24 Flèche extensible pour grue

Publications (1)

Publication Number Publication Date
FR1399411A true FR1399411A (fr) 1965-05-14

Family

ID=8833119

Family Applications (1)

Application Number Title Priority Date Filing Date
FR979494A Expired FR1399411A (fr) 1964-06-24 1964-06-24 Flèche extensible pour grue

Country Status (1)

Country Link
FR (1) FR1399411A (fr)

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