GB771282A - Hydraulic telescopic hoisting apparatus - Google Patents

Hydraulic telescopic hoisting apparatus

Info

Publication number
GB771282A
GB771282A GB22669/55A GB2266955A GB771282A GB 771282 A GB771282 A GB 771282A GB 22669/55 A GB22669/55 A GB 22669/55A GB 2266955 A GB2266955 A GB 2266955A GB 771282 A GB771282 A GB 771282A
Authority
GB
United Kingdom
Prior art keywords
cylinders
rings
platform
aug
fitted
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
GB22669/55A
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.)
SOGENI GENERALE PER L Soc
Original Assignee
SOGENI GENERALE PER L Soc
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 SOGENI GENERALE PER L Soc filed Critical SOGENI GENERALE PER L Soc
Publication of GB771282A publication Critical patent/GB771282A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/26—Adaptations or arrangements of pistons
    • B66F3/28—Adaptations or arrangements of pistons telescopic
    • 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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/16—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks
    • B66F7/18—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by one or more hydraulic or pneumatic jacks by a single central jack

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)
  • Reciprocating Pumps (AREA)

Abstract

771,282. Platform hoists. SOGENI SOC. GENERALE PER L'INDUSTRIA. Aug. 5, 1955 [Aug. 7, 1954], No. 22669/55. Class 78 (3). An hydraulic platform hoist comprises telescopic cylinders 5, 10, 15 housed in a cylinder 1 fixed in the ground and into which oil under pressure is delivered through a pipe 3 by a pump, the cylinder 15 being fitted at its upper end with a ring 21 connected by bolts 22 to a bracket 23 supporting the lifting platform 24. The cylinders 5, 10, 15 are formed with metal rings 6, 11, 17 which, when these cylinders slide outwardly, serve as guiding slippers and also as stops to engage rings 7, 12, 18 on the cylinders 1, 5, 10 respectively. These latter rings are fitted with packing rings 9, 14, 20. When the platform reaches its maximum height, a valve (not shown) set for a predetermined pressure, actuates a switch to stop the pump.
GB22669/55A 1954-08-07 1955-08-05 Hydraulic telescopic hoisting apparatus Expired GB771282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT771282X 1954-08-07

Publications (1)

Publication Number Publication Date
GB771282A true GB771282A (en) 1957-03-27

Family

ID=11316135

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22669/55A Expired GB771282A (en) 1954-08-07 1955-08-05 Hydraulic telescopic hoisting apparatus

Country Status (1)

Country Link
GB (1) GB771282A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417670A (en) * 1966-04-18 1968-12-24 Parker Hannifin Corp Hydraulic ram
FR2362297A1 (en) * 1976-08-20 1978-03-17 Telehoist Ltd ADVANCED TELESCOPIC DEVICES
US4303005A (en) * 1979-07-16 1981-12-01 The Heil Company Hydraulic cylinder assembly
US6450083B1 (en) * 2001-01-22 2002-09-17 Dawson Hydraulics Inc. Telescopic hydraulic hoist

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3417670A (en) * 1966-04-18 1968-12-24 Parker Hannifin Corp Hydraulic ram
FR2362297A1 (en) * 1976-08-20 1978-03-17 Telehoist Ltd ADVANCED TELESCOPIC DEVICES
US4303005A (en) * 1979-07-16 1981-12-01 The Heil Company Hydraulic cylinder assembly
US6450083B1 (en) * 2001-01-22 2002-09-17 Dawson Hydraulics Inc. Telescopic hydraulic hoist

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