GB1008493A - A safety device for a lift - Google Patents

A safety device for a lift

Info

Publication number
GB1008493A
GB1008493A GB3039963A GB3039963A GB1008493A GB 1008493 A GB1008493 A GB 1008493A GB 3039963 A GB3039963 A GB 3039963A GB 3039963 A GB3039963 A GB 3039963A GB 1008493 A GB1008493 A GB 1008493A
Authority
GB
United Kingdom
Prior art keywords
switch
platform
spring
bars
electromagnet
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
GB3039963A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB1008493A publication Critical patent/GB1008493A/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
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
    • B66F7/04—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars hydraulically or pneumatically operated

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Types And Forms Of Lifts (AREA)

Abstract

1,008,493. Safety devices for garage lifts. A. A. DE KONING and K. K. K. DE KONING. July 31, 1963 [July 12, 1963], No. 30399/63. Heading B8H. The lifting platform of a garage lift is provided, on the underside, with insulated conductor bars 13 connected to a capacitative switch 14 incorporated in the lift control circuit whereby the descent of the platform is halted when the bars approach or contact an obstruction. To lower the platform, the lever 8 of a valve 9, located between the lifting ram 7 and reservoir 10, is turned to the broken line position 8<SP>1</SP> against the action of a spring 18, thereby closing a switch 19. Closing of the switch 19 closes the circuit of an electromagnet 15 which pushes out a locking bolt 16 against the action of a spring 17 to hold the lever 8 in the position 8<SP>1</SP>. When the bars 13 engage or approach an obstruction, the switch 14 interrupts the control circuit, the electromagnet 15 is de-energized, the bolt 16 is withdrawn by the spring 17 and the valve 9 is closed by the spring 18. A switch 20 in parallel with switch 14 is mounted on the platform to eliminate the influence of the floor on the bars 13 and is closed on engaging a fixed cam 21 to maintain the electromagnet 15 energized when the switch 14 opens as the platform approaches its lowermost position.
GB3039963A 1963-07-12 1963-07-31 A safety device for a lift Expired GB1008493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL295245 1963-07-12

Publications (1)

Publication Number Publication Date
GB1008493A true GB1008493A (en) 1965-10-27

Family

ID=19754870

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3039963A Expired GB1008493A (en) 1963-07-12 1963-07-31 A safety device for a lift

Country Status (6)

Country Link
AT (1) AT245203B (en)
BE (1) BE635664A (en)
CH (1) CH422269A (en)
DE (1) DE1203438B (en)
DK (1) DK116619B (en)
GB (1) GB1008493A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107975283A (en) * 2017-12-27 2018-05-01 上海萨逸检测设备制造股份有限公司 A kind of inversion type through insurance device for cantilevered garage parking
CN112239173A (en) * 2020-10-10 2021-01-19 杭州中车车辆有限公司 Integral underground car lifting jack and control device thereof

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE981268C (en) * 1943-03-25 1900-01-01
GB913718A (en) * 1958-04-28 1962-12-28 Plessey Co Ltd A safety device for a machine tool
DE1828805U (en) * 1960-12-23 1961-03-30 Masch Trepel K G PROTECTION DEVICE FOR HYDRAULICALLY OR ELECTRICALLY DRIVEN LIFTING TABLES.
DE1838876U (en) * 1961-06-20 1961-10-05 Focke Wulf Ges Mit Beschraenkt DEVICE TO PROTECT THE OPERATOR'S FEET AGAINST PINCHING WHEN LOWERING THE LOAD SUPPORTING MEMBER OF OILHYDRAULIC LIFTING TABLES.
DE1867576U (en) * 1962-11-27 1963-02-21 Trepel K G Maschinenfabrik SAFETY DEVICE FOR LIFTING TABLES.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107975283A (en) * 2017-12-27 2018-05-01 上海萨逸检测设备制造股份有限公司 A kind of inversion type through insurance device for cantilevered garage parking
CN112239173A (en) * 2020-10-10 2021-01-19 杭州中车车辆有限公司 Integral underground car lifting jack and control device thereof
CN112239173B (en) * 2020-10-10 2021-12-24 杭州中车车辆有限公司 Integral underground car lifting jack and control device thereof

Also Published As

Publication number Publication date
BE635664A (en) 1963-11-18
DK116619B (en) 1970-01-26
DE1203438B (en) 1965-10-21
AT245203B (en) 1966-02-25
CH422269A (en) 1966-10-15

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