GB206395A - Lifting jack - Google Patents

Lifting jack

Info

Publication number
GB206395A
GB206395A GB3430522A GB3430522A GB206395A GB 206395 A GB206395 A GB 206395A GB 3430522 A GB3430522 A GB 3430522A GB 3430522 A GB3430522 A GB 3430522A GB 206395 A GB206395 A GB 206395A
Authority
GB
United Kingdom
Prior art keywords
pawl
plug
engaged
piston
lifting jack
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
GB3430522A
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.)
SILVIO RAGAZZINI
Original Assignee
SILVIO RAGAZZINI
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 SILVIO RAGAZZINI filed Critical SILVIO RAGAZZINI
Priority to GB3430522A priority Critical patent/GB206395A/en
Publication of GB206395A publication Critical patent/GB206395A/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
    • B66F1/06—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 actuated mechanically

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)

Abstract

206,395. Ragazzini, S. Dec. 15, 1922. Jacks.-The lifting pillar a of a jack is provided with racks c, d one of which is engaged by the nose f<1> of a pivoted actuating handle f and the other of which is engaged by a pawl e mounted eccentrically in a rotatable disc g. An arm i, Fig. 4, attached to the disc is normally held in position between studs l by a spring m, but can be released by a member o connected to the handle f when it is desired to release the pawl e for lowering. The tubular pillar a is closed by a plug u and contains a perforated piston s mounted on a rod q fixed to the base. The space between the piston and plug is filled with a viscous fluid.
GB3430522A 1922-12-15 1922-12-15 Lifting jack Expired GB206395A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3430522A GB206395A (en) 1922-12-15 1922-12-15 Lifting jack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3430522A GB206395A (en) 1922-12-15 1922-12-15 Lifting jack

Publications (1)

Publication Number Publication Date
GB206395A true GB206395A (en) 1923-11-08

Family

ID=10363980

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3430522A Expired GB206395A (en) 1922-12-15 1922-12-15 Lifting jack

Country Status (1)

Country Link
GB (1) GB206395A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113833243A (en) * 2021-10-19 2021-12-24 国网山东省电力公司济南市长清区供电公司 A auxiliary device for electric power engineering construction

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113833243A (en) * 2021-10-19 2021-12-24 国网山东省电力公司济南市长清区供电公司 A auxiliary device for electric power engineering construction
CN113833243B (en) * 2021-10-19 2023-02-24 国网山东省电力公司济南市长清区供电公司 A auxiliary device for electric power engineering construction

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