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GB1422200A - Device for lifting loads step-by-step especially heavy loads - Google Patents

Device for lifting loads step-by-step especially heavy loads

Info

Publication number
GB1422200A
GB1422200A GB3759775A GB3759775A GB1422200A GB 1422200 A GB1422200 A GB 1422200A GB 3759775 A GB3759775 A GB 3759775A GB 3759775 A GB3759775 A GB 3759775A GB 1422200 A GB1422200 A GB 1422200A
Authority
GB
United Kingdom
Prior art keywords
loads
lifting
especially heavy
stack
heavy loads
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
GB3759775A
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
Priority to GB3759775A priority Critical patent/GB1422200A/en
Publication of GB1422200A publication Critical patent/GB1422200A/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
    • B66F1/00—Devices, e.g. jacks, for lifting loads in predetermined steps
    • B66F1/02—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts
    • B66F1/04—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed
    • B66F1/08—Devices, e.g. jacks, for lifting loads in predetermined steps with locking elements, e.g. washers, co-operating with posts the posts being toothed and the devices being operated by fluid pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Abstract

1422200 Step-by-step lifting devices D V H JOHANSSON 30 April 1973 37597/75 Divided out of 1422199 Heading B8J The device for lifting or lowering loads stepby-step described and claimed in Specification 1,422,199 is modified in that upstanding supports are formed by U-beam sections 2a stackable one on another. In use at the end of a lifting stroke a further section 2a, shown dotted, can be added at the top of the stack before the jack 3 is retracted and thus the stack can be increased in height until the desired height is reached.
GB3759775A 1973-04-30 1973-04-30 Device for lifting loads step-by-step especially heavy loads Expired GB1422200A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3759775A GB1422200A (en) 1973-04-30 1973-04-30 Device for lifting loads step-by-step especially heavy loads

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3759775A GB1422200A (en) 1973-04-30 1973-04-30 Device for lifting loads step-by-step especially heavy loads

Publications (1)

Publication Number Publication Date
GB1422200A true GB1422200A (en) 1976-01-21

Family

ID=10397643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3759775A Expired GB1422200A (en) 1973-04-30 1973-04-30 Device for lifting loads step-by-step especially heavy loads

Country Status (1)

Country Link
GB (1) GB1422200A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460881A1 (en) * 1979-07-05 1981-01-30 Resmastservice Ab DEVICE FOR LIFTING LOADS, IN PARTICULAR HEAVY LOADS STEP BY STEP USING ONE OR MORE CURVES
WO1999014152A1 (en) * 1997-09-16 1999-03-25 Applied Power Inc. Hydraulic staging jack
CN110422793A (en) * 2019-08-09 2019-11-08 东莞市鑫峰建筑机械有限公司 Hydraulic lifting assembly and hydraulic jacking equipment
CN112744600A (en) * 2021-01-08 2021-05-04 湖南翰坤实业有限公司 Ordered discharging mechanism for square tubes
CN112830412A (en) * 2020-12-31 2021-05-25 上海同力建设机器人有限公司 Semi-automatic quick hand change lifting device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2460881A1 (en) * 1979-07-05 1981-01-30 Resmastservice Ab DEVICE FOR LIFTING LOADS, IN PARTICULAR HEAVY LOADS STEP BY STEP USING ONE OR MORE CURVES
WO1999014152A1 (en) * 1997-09-16 1999-03-25 Applied Power Inc. Hydraulic staging jack
US6155536A (en) * 1997-09-16 2000-12-05 Applied Power Inc. Hydraulic staging jack
CN110422793A (en) * 2019-08-09 2019-11-08 东莞市鑫峰建筑机械有限公司 Hydraulic lifting assembly and hydraulic jacking equipment
CN112830412A (en) * 2020-12-31 2021-05-25 上海同力建设机器人有限公司 Semi-automatic quick hand change lifting device
CN112830412B (en) * 2020-12-31 2022-04-05 上海同力建设机器人有限公司 Semi-automatic quick hand change lifting device
CN112744600A (en) * 2021-01-08 2021-05-04 湖南翰坤实业有限公司 Ordered discharging mechanism for square tubes
CN112744600B (en) * 2021-01-08 2022-03-25 湖南翰坤实业有限公司 Ordered discharging mechanism for square tubes

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee