GB1394265A - Multi-stage hoist and control system therefor - Google Patents
Multi-stage hoist and control system thereforInfo
- Publication number
- GB1394265A GB1394265A GB5330572A GB5330572A GB1394265A GB 1394265 A GB1394265 A GB 1394265A GB 5330572 A GB5330572 A GB 5330572A GB 5330572 A GB5330572 A GB 5330572A GB 1394265 A GB1394265 A GB 1394265A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- valve
- cylinders
- shows
- conduits
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- Geology (AREA)
- Actuator (AREA)
- Movable Scaffolding (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Fluid-Pressure Circuits (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
1394265 Telescopic hoists S W BUSHNELL JNR 17 Nov 1972 [17 Nov 1971] 53305/72 Heading B8H [Also in Division F1] A hoist platform 15, Fig. 1, is raised by telescopic cylinders 11, 12, 13 which are supplied with compressed gas through conduits 18, 22 sequentially so that the lower cylinder 11 is overpressurized to render it more rigid before the third cylinder is extended and pressurized. Fig. 1A shows a circuit for sequentially pressurizing cylinders 11, 12 by opening a valve 36 and then a valve 37 by depressing foot pedals 39 located on the load platform. When a valve is opened cylinder 12 is depressurized causing cylinder 13 to retract. At the bottom of its travel cylinder 13 opens a spring loaded valve 31 so that cylinder 11 is depressurized and cylinder 12 is retracted. Fig. 1B shows a circuit which has only one valve 50 for extending the cylinders. A restrictor 55 ensures that extension and pressurization take place sequentially. Fig. 1C shows an arrangement in which a valve 60 causes extension of cylinder 12 and pressurization of cylinder 11. When this is complete a high pressure sensor 63 opens a valve 64 to complete the raising of the platform. Fig. 2 shows an arrangement in which the spring loaded valve 31 is omitted. Figs. 2A-2F (not shown), illustrate control circuits with different degrees of automatic action during extension and retraction. Figs. 3 and 4 show embodiments with four cylinders and three supply conduits. Figs. 5 and 6, (not shown), illustrate arrangements with five cylinders and two conduits.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US19956671A | 1971-11-17 | 1971-11-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1394265A true GB1394265A (en) | 1975-05-14 |
Family
ID=22738091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5330572A Expired GB1394265A (en) | 1971-11-17 | 1972-11-17 | Multi-stage hoist and control system therefor |
Country Status (5)
Country | Link |
---|---|
US (1) | US3734464A (en) |
JP (1) | JPS5551839B2 (en) |
DE (1) | DE2256188A1 (en) |
FR (1) | FR2160517A1 (en) |
GB (1) | GB1394265A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2173548A (en) * | 1985-02-25 | 1986-10-15 | Ralph Haber Hoyeck | Hoisting device |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3832937A (en) * | 1972-12-29 | 1974-09-03 | Up Right Inc | Pneumatic telescopic hoist having three or more steps of extension |
US3958098A (en) * | 1974-09-03 | 1976-05-18 | Sumitomo Shipbuilding & Machinery Co., Ltd. | Apparatus for automatic and vertical fillet welding |
DE2525752C2 (en) * | 1975-06-10 | 1984-06-07 | Stabilus Gmbh, 5400 Koblenz | Height-adjustable chair with a change in the angle of the backrest or seat |
US4023650A (en) * | 1975-08-20 | 1977-05-17 | Eaton Corporation | Hydraulic systems for two speed lifting |
US4258609A (en) * | 1977-10-11 | 1981-03-31 | Conway John P | Dual speed hydraulic piston assembly |
JPS5890018U (en) * | 1981-12-11 | 1983-06-18 | 共同電気株式会社 | Bus duct plug-in fixture installation device |
GB2176845B (en) * | 1985-06-21 | 1989-04-26 | 600 Group Plc The | Improvements in telescopic devices such as crane jibs |
US5219429A (en) * | 1992-08-10 | 1993-06-15 | Shelton Bill E | Hydra-lift system |
US5377432A (en) * | 1992-10-29 | 1995-01-03 | Japanic Corporation | Deep excavator |
DE102011106214A1 (en) * | 2011-06-07 | 2012-12-13 | Brötje-Automation GmbH | end effector |
DE102015009177A1 (en) | 2015-07-09 | 2017-01-12 | Broetje-Automation Gmbh | Method for producing a fiber-metal laminate component of an aircraft |
CN114275716B (en) * | 2020-06-10 | 2023-04-25 | 广东博智林机器人有限公司 | Lifting device and plastering equipment |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US165472A (en) * | 1875-07-13 | Improvement in elevators | ||
US332418A (en) * | 1885-12-15 | Morey | ||
US3279755A (en) * | 1965-01-11 | 1966-10-18 | Redeman Corp | Multi-stage hydraulic hoist |
US3534659A (en) * | 1967-09-29 | 1970-10-20 | Buford L Payson | Telescopic hoist |
-
1971
- 1971-11-17 US US00199566A patent/US3734464A/en not_active Expired - Lifetime
-
1972
- 1972-11-16 JP JP11515572A patent/JPS5551839B2/ja not_active Expired
- 1972-11-16 DE DE2256188A patent/DE2256188A1/en active Pending
- 1972-11-16 FR FR7240643A patent/FR2160517A1/fr not_active Withdrawn
- 1972-11-17 GB GB5330572A patent/GB1394265A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2173548A (en) * | 1985-02-25 | 1986-10-15 | Ralph Haber Hoyeck | Hoisting device |
Also Published As
Publication number | Publication date |
---|---|
JPS4862159A (en) | 1973-08-30 |
JPS5551839B2 (en) | 1980-12-26 |
FR2160517A1 (en) | 1973-06-29 |
DE2256188A1 (en) | 1973-05-24 |
US3734464A (en) | 1973-05-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1394265A (en) | Multi-stage hoist and control system therefor | |
GB1356517A (en) | Light weight telescoping boom | |
GB1308600A (en) | Mobile cranes with safety devices | |
GB1102274A (en) | Hydraulic jack | |
GB1310454A (en) | Cranes having telescopic booms | |
GB1347834A (en) | Automobile hoist | |
FR2306930A1 (en) | Forklift truck attachment - comprises self levelling working platform on telescopic boom derricking on fork slide | |
GB1365026A (en) | Extendable mechanism | |
GB741150A (en) | Improvements in mine roof supports | |
GB1248261A (en) | Improvements relating to jacking apparatus | |
GB1117438A (en) | Improvements in or relating to jacking apparatus | |
GB966227A (en) | Load handling truck | |
GB823586A (en) | Improvements in or relating to mine roof supports | |
GB1402214A (en) | Device for feeding a hydraulic load element mounted on a telescopic structure by means of two jacks | |
GB1178365A (en) | Improvements in or relating to Mobile Cranes. | |
GB1416212A (en) | Machines having a component movable in extend and retract directions by at least one hydraulic cylinder | |
JPS5465977A (en) | Baffer for bucket elevator type unloader against ship | |
GB1179257A (en) | Improvements in or relating to Self-Levelling Loading Devices. | |
ES459207A1 (en) | Overhead maintenance platform lifting mechanism - has boom sections telescoping in both directions urged by single hydraulic ram | |
GB1421096A (en) | Pneumatic telescopic hoist having three or more steps of extension | |
GB935843A (en) | A travelling support frame for the support of galleries in mines | |
GB871100A (en) | Mobile crane | |
FR2224659A1 (en) | Safety mechanism for telescopic boom crane | |
GB1241027A (en) | Slewing crane | |
GB930622A (en) | A loading device for hauling loads by means of cargo booms |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |