GB190519547A - Improved Lever Jack. - Google Patents

Improved Lever Jack.

Info

Publication number
GB190519547A
GB190519547A GB190519547DA GB190519547A GB 190519547 A GB190519547 A GB 190519547A GB 190519547D A GB190519547D A GB 190519547DA GB 190519547 A GB190519547 A GB 190519547A
Authority
GB
United Kingdom
Prior art keywords
casing
rod
trewhella
stumps
jacks
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 GB190519547A publication Critical patent/GB190519547A/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)
  • Transmission Devices (AREA)
  • Ladders (AREA)
GB190519547D 1905-08-07 1905-09-27 Improved Lever Jack. Expired GB190519547A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US197427XA 1905-08-07 1905-08-07
GB190519547T 1905-09-27

Publications (1)

Publication Number Publication Date
GB190519547A true GB190519547A (en) 1906-01-18

Family

ID=37685718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190519547D Expired GB190519547A (en) 1905-08-07 1905-09-27 Improved Lever Jack.

Country Status (2)

Country Link
DE (1) DE197427C (https=)
GB (1) GB190519547A (https=)

Also Published As

Publication number Publication date
DE197427C (https=) 1908-04-15

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