GB703554A - Improvements in or relating to cranes - Google Patents

Improvements in or relating to cranes

Info

Publication number
GB703554A
GB703554A GB3051750A GB3051750A GB703554A GB 703554 A GB703554 A GB 703554A GB 3051750 A GB3051750 A GB 3051750A GB 3051750 A GB3051750 A GB 3051750A GB 703554 A GB703554 A GB 703554A
Authority
GB
United Kingdom
Prior art keywords
lift
jib
pivoted
rate
pipe
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
GB3051750A
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.)
EDWARD ARTHUR THORP
REGINALD WAGHORN BRIAN HARVEY
Original Assignee
EDWARD ARTHUR THORP
REGINALD WAGHORN BRIAN HARVEY
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 EDWARD ARTHUR THORP, REGINALD WAGHORN BRIAN HARVEY filed Critical EDWARD ARTHUR THORP
Priority to GB3051750A priority Critical patent/GB703554A/en
Publication of GB703554A publication Critical patent/GB703554A/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
    • B66C2700/062—Cranes in which the lifting movement is done with a hydraulically controlled plunger mounted on motor vehicles

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

703,554. Load-handling appliances. THORP, E. A., and HARVEY, R. W. B. Dec. 14, 1951 [Dec. 14, 1950], No. 30517/50. Classes 78 (3) and 78 (4) A crane in which the jib is pivoted about a movable fulcrum so as to give a lift in a substantially vertical straight line is provided with a variable drive which gives a substantially constant velocity ratio to lift, i.e. for any given rate of power input the rate of lift is substantially constant. The jib a, b, c is connected to links g and h pivoted to a self propelled carriage d, so that on raising the jib, the load moves in a substantially vertical path, the rate of ascent being constant for a given power input. The lift is effected by a multi-telescopic ram k pivoted at 1 to the carriage and supplied with fluid from a prime mover r. The fluid passes to a pipe s to a non-return valve to a pipe q connected to the ram and returns along pipe u to a tank w. The lift may otherwise be effected by gearing connected to the pivot j.
GB3051750A 1950-12-14 1950-12-14 Improvements in or relating to cranes Expired GB703554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3051750A GB703554A (en) 1950-12-14 1950-12-14 Improvements in or relating to cranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3051750A GB703554A (en) 1950-12-14 1950-12-14 Improvements in or relating to cranes

Publications (1)

Publication Number Publication Date
GB703554A true GB703554A (en) 1954-02-03

Family

ID=10308912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3051750A Expired GB703554A (en) 1950-12-14 1950-12-14 Improvements in or relating to cranes

Country Status (1)

Country Link
GB (1) GB703554A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182790B (en) * 1962-03-23 1964-12-03 F Potain & Cie Sa Ets Device for erecting a collapsible crane
DE1238169B (en) * 1961-05-09 1967-04-06 British Crane & Excavator Corp Mobile jib crane with a tractor
DE1294216B (en) * 1962-07-05 1969-04-30 Masera Arturo Hydraulic servomotor with telescopic piston, especially for cranes
DE2508872A1 (en) * 1975-02-28 1976-09-09 Zaklad Doswiadczalny Dzwigow S Crane with articulated arm and hydraulic drive - has hydraulic actuators for moving arm by parallelogram lever system
FR2537183A1 (en) * 1982-12-06 1984-06-08 Orenstein & Koppel Ag MECHANICAL SHOVEL BOWL

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1238169B (en) * 1961-05-09 1967-04-06 British Crane & Excavator Corp Mobile jib crane with a tractor
DE1182790B (en) * 1962-03-23 1964-12-03 F Potain & Cie Sa Ets Device for erecting a collapsible crane
DE1294216B (en) * 1962-07-05 1969-04-30 Masera Arturo Hydraulic servomotor with telescopic piston, especially for cranes
DE2508872A1 (en) * 1975-02-28 1976-09-09 Zaklad Doswiadczalny Dzwigow S Crane with articulated arm and hydraulic drive - has hydraulic actuators for moving arm by parallelogram lever system
FR2537183A1 (en) * 1982-12-06 1984-06-08 Orenstein & Koppel Ag MECHANICAL SHOVEL BOWL
GB2134070A (en) * 1982-12-06 1984-08-08 Orenstein & Koppel Ag Boom forming part of the equipment of an excavator

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