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GB933693A - Improvements relating to elevating platforms and the like particularly for workmen - Google Patents

Improvements relating to elevating platforms and the like particularly for workmen

Info

Publication number
GB933693A
GB933693A GB202060A GB202060A GB933693A GB 933693 A GB933693 A GB 933693A GB 202060 A GB202060 A GB 202060A GB 202060 A GB202060 A GB 202060A GB 933693 A GB933693 A GB 933693A
Authority
GB
United Kingdom
Prior art keywords
turntable
boom
platform
raising
pivoted
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
GB202060A
Inventor
Spencer Fernley Geary
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.)
Wharton Engineers Elstree Ltd
Original Assignee
Wharton Engineers Elstree Ltd
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 Wharton Engineers Elstree Ltd filed Critical Wharton Engineers Elstree Ltd
Priority to GB202060A priority Critical patent/GB933693A/en
Publication of GB933693A publication Critical patent/GB933693A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G1/00—Scaffolds primarily resting on the ground
    • E04G1/18—Scaffolds primarily resting on the ground adjustable in height
    • 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
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/042—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations actuated by lazy-tongs mechanisms or articulated levers
    • 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
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Operation Control Of Excavators (AREA)

Abstract

933,693. Mobile platforms for workmen. WHARTON ENGINEERS (ELSTREE) Ltd. April 20, 1961 [Jan. 20, 1960], No. 2020/60. Class 20 (2). A platform 6 for workmen is mounted on a boom 4 which is pivotable about a pivot 40 on a turntable 10, the platform being maintained horizontal during raising by links 45 and steps 51, Fig. 7, also being similarly maintained horizontal and providing access to the platform at all stages of raising. The steps 51 are pivoted at one end between the two members 42 forming the boom 4 and are pivoted at the other to links 52 pivoted at either end to the turntable and the platform. The platform 6 is rotatable by means of a hand wheel and endless chain on a turntable on the frame 5 by which it is pivotally mounted on the end of the boom and links 45. Rollers on the turntable engage above, below and on the circumference of a machined ring 8, Fig. 4 (not shown), on the base, two further rollers one engaging the top of the ring below the boom and the other beneath the ring opposite the boom assist in taking the weight of the boom. Mounted on the turntable 10 are an engine and hydraulic pumps for raising the boom by rams and turning the turntable either way by an hydraulic motor. The rotation of the turntable may be by hand and may be limited by stop valves. A decelerator valve prevents dangerous pressures in the hydraulic system due to the momentum of the turntable if the control valve is abruptly closed. The turntable is held by a brake automatically controlled by the control valve. A hand pump may be used to operate the rams for raising the boom. A ratchet, Fig. 12 (not shown) prevents collapse of the boom. The boom and turntable may be controlled from the platform 6. The apparatus is mounted on a railway truck 1.
GB202060A 1960-01-20 1960-01-20 Improvements relating to elevating platforms and the like particularly for workmen Expired GB933693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB202060A GB933693A (en) 1960-01-20 1960-01-20 Improvements relating to elevating platforms and the like particularly for workmen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB202060A GB933693A (en) 1960-01-20 1960-01-20 Improvements relating to elevating platforms and the like particularly for workmen

Publications (1)

Publication Number Publication Date
GB933693A true GB933693A (en) 1963-08-08

Family

ID=9732181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB202060A Expired GB933693A (en) 1960-01-20 1960-01-20 Improvements relating to elevating platforms and the like particularly for workmen

Country Status (1)

Country Link
GB (1) GB933693A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357517A (en) * 1965-12-27 1967-12-12 Elmer A Wagner Mobile scaffold
JPS492303A (en) * 1972-04-22 1974-01-10
EP0381629A1 (en) * 1989-01-31 1990-08-08 Omar Cavattoni An extensible movable bridge assembly for use in building tunnels
EP0525903A1 (en) * 1991-07-15 1993-02-03 SPEZIALFAHRZEUGAUFBAU UND KABELTECHNIK GmbH Mobile working platform with flexible work position
FR2771398A1 (en) * 1997-11-25 1999-05-28 Louis Armel Jaunasse Support for work platform on vehicle hoist

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3357517A (en) * 1965-12-27 1967-12-12 Elmer A Wagner Mobile scaffold
JPS492303A (en) * 1972-04-22 1974-01-10
JPS5147236B2 (en) * 1972-04-22 1976-12-14
EP0381629A1 (en) * 1989-01-31 1990-08-08 Omar Cavattoni An extensible movable bridge assembly for use in building tunnels
EP0525903A1 (en) * 1991-07-15 1993-02-03 SPEZIALFAHRZEUGAUFBAU UND KABELTECHNIK GmbH Mobile working platform with flexible work position
FR2771398A1 (en) * 1997-11-25 1999-05-28 Louis Armel Jaunasse Support for work platform on vehicle hoist

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