GB190519548A - An Improved Hauling and Lifting Lever Jack. - Google Patents

An Improved Hauling and Lifting Lever Jack.

Info

Publication number
GB190519548A
GB190519548A GB190519548DA GB190519548A GB 190519548 A GB190519548 A GB 190519548A GB 190519548D A GB190519548D A GB 190519548DA GB 190519548 A GB190519548 A GB 190519548A
Authority
GB
United Kingdom
Prior art keywords
casing
pawl
lever
lifting
pawls
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
Other languages
English (en)
Inventor
Benjamin Trewhella
William Trewhella
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
Application granted granted Critical
Publication of GB190519548A publication Critical patent/GB190519548A/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)
  • Load-Engaging Elements For Cranes (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
GB190519548D 1905-09-27 1905-09-27 An Improved Hauling and Lifting Lever Jack. Expired GB190519548A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190519548T 1905-09-27

Publications (1)

Publication Number Publication Date
GB190519548A true GB190519548A (en) 1906-04-12

Family

ID=32199800

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190519548D Expired GB190519548A (en) 1905-09-27 1905-09-27 An Improved Hauling and Lifting Lever Jack.

Country Status (2)

Country Link
DE (1) DE193639C (enrdf_load_stackoverflow)
GB (1) GB190519548A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE193639C (enrdf_load_stackoverflow) 1907-12-24

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