GB1175591A - Improvements in or relating to Lifts - Google Patents

Improvements in or relating to Lifts

Info

Publication number
GB1175591A
GB1175591A GB3586/67A GB358667A GB1175591A GB 1175591 A GB1175591 A GB 1175591A GB 3586/67 A GB3586/67 A GB 3586/67A GB 358667 A GB358667 A GB 358667A GB 1175591 A GB1175591 A GB 1175591A
Authority
GB
United Kingdom
Prior art keywords
lift platform
lift
platform
pressure
hydraulic
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
GB3586/67A
Inventor
Robert Andrew Wright
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3586/67A priority Critical patent/GB1175591A/en
Priority to US700306A priority patent/US3498415A/en
Publication of GB1175591A publication Critical patent/GB1175591A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Structural Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1,175,591. Hydraulic lifts. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES. 24 Jan., 1968 [24 Jan., 1967], No. 3586/67. Headings B8H and B8L. A ship-board lift installation incorporates a lift platform 1, with a turntable 18, movable vertically in guides 2 between different decks of the ship and comprises a lift driving arrangement with chains 3 to support the lift platform 1 and which pass over sprockets 4, the lower sprockets being driven by hydraulic motor units 5 synchronized by a shaft 8. The motor units 5 are supplied with pressure fluid by reversible main variable delivery pumps 9 themselves driven by electric motors 10. The driving system includes an hydraulic accumulator 11, consisting of vertical cylinders 12 providing an oil reservoir with a common feed pipe connected to their lower ends, their upper ends being connected to pressurized gas reservoir 13 consisting of vertical cylinders 14 of air or nitrogen. The arrangement is such that the pressure of the fluid at the pump inlet, when the lift platform 1 is in its highest position, Fig. 4, is at least 60% of the pressure at that inlet when the lift platform 1 is in its lowest position, Fig. 3. Lowering of the lift platform 1 causes oil to be fed from a storage tank 15 back into the accumulator 12, Fig. 5. Figs. 3 to 5 refer to an unloaded lift platform 1, Figs. 6 to 8 (not shown), illustrate conditions with a loaded platform.
GB3586/67A 1967-01-24 1967-01-24 Improvements in or relating to Lifts Expired GB1175591A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3586/67A GB1175591A (en) 1967-01-24 1967-01-24 Improvements in or relating to Lifts
US700306A US3498415A (en) 1967-01-24 1968-01-24 Lifts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3586/67A GB1175591A (en) 1967-01-24 1967-01-24 Improvements in or relating to Lifts

Publications (1)

Publication Number Publication Date
GB1175591A true GB1175591A (en) 1969-12-23

Family

ID=9761145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3586/67A Expired GB1175591A (en) 1967-01-24 1967-01-24 Improvements in or relating to Lifts

Country Status (2)

Country Link
US (1) US3498415A (en)
GB (1) GB1175591A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1553107A (en) * 1975-05-17 1979-09-19 Nisso Sangyo Kk Working base elevating apparatus
FR2586407B1 (en) * 1985-08-22 1987-10-30 Alsthom DEVICE FOR HOLDING A CABLE WITH ALTERNATIVE MOVEMENT WITH ENERGY STORAGE IN AN OLEOPNEUMATIC ACCUMULATOR AND CABLE LIFT WITH PERMANENT LOAD COMPENSATION.
US5049022A (en) * 1988-02-03 1991-09-17 Wilson Jack S Parking structure
CA2017054C (en) * 1990-05-16 1999-08-10 Jack S. Wilson Automatic storage and retrieval system
DE19651348A1 (en) * 1996-12-10 1998-06-18 Mannesmann Rexroth Ag Hydraulic drive for lifts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US793907A (en) * 1904-04-09 1905-07-04 William H Reeves Hydraulic elevator.
GB295518A (en) * 1927-09-06 1928-08-16 Ewen Henderson Mitchell Improved means for embarking and stowing motor and other wheeled vehicles on ships and other vessels
US2107210A (en) * 1932-05-18 1938-02-01 Palm Blake Elevator construction
US2269786A (en) * 1941-04-28 1942-01-13 Vickers Inc Power transmission
US3047095A (en) * 1960-05-06 1962-07-31 American Can Co Pallet elevator
US3163005A (en) * 1962-11-19 1964-12-29 Jersey Prod Res Co Apparatus for use on floating drilling platforms

Also Published As

Publication number Publication date
US3498415A (en) 1970-03-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee