GB933693A - Improvements relating to elevating platforms and the like particularly for workmen - Google Patents
Improvements relating to elevating platforms and the like particularly for workmenInfo
- 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
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.
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)
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 |
-
1960
- 1960-01-20 GB GB202060A patent/GB933693A/en not_active Expired
Cited By (6)
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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