GB383732A - Improvements in or relating to derricks or like lifting apparatus - Google Patents

Improvements in or relating to derricks or like lifting apparatus

Info

Publication number
GB383732A
GB383732A GB30032/31A GB3003231A GB383732A GB 383732 A GB383732 A GB 383732A GB 30032/31 A GB30032/31 A GB 30032/31A GB 3003231 A GB3003231 A GB 3003231A GB 383732 A GB383732 A GB 383732A
Authority
GB
United Kingdom
Prior art keywords
compressed air
derricks
air
reservoir
relating
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
GB30032/31A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB383732A publication Critical patent/GB383732A/en
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
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/06—Cranes in which the lifting movement is done with a hydraulically controlled plunger

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

383,732. Derricks. MARCHAUT, P. J., 28, Rue de la Briche, St-Denis, Seine, France. Oct. 29, 1931, No. 30032. Convention date, Jan. 10. Addition to 383,730. [Class 78 (iv).] The derrick described in the parent Specification is adapted for hoisting the load by compressed air or hydraulic mechanism. As shown in Fig. 1, a reservoir 39 is charged with compressed air by a compressor driven by the ship's engine 40 or by an auxiliary motor. A pipe line 41 leads the compressed air through branches 42 to various points on the deck. In a modification, Fig. 2 (not shown), the air reservoir 39 is connected to a number of reservoirs containing water which is forced by the air-pressure through branch-pipes to the operating points. The device is particularly suitable for salving hydroplanes.
GB30032/31A 1931-01-10 1931-10-29 Improvements in or relating to derricks or like lifting apparatus Expired GB383732A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR383732X 1931-01-10

Publications (1)

Publication Number Publication Date
GB383732A true GB383732A (en) 1932-11-24

Family

ID=8895532

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30032/31A Expired GB383732A (en) 1931-01-10 1931-10-29 Improvements in or relating to derricks or like lifting apparatus

Country Status (1)

Country Link
GB (1) GB383732A (en)

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