GB144265A - An improved ratchet lifting jack - Google Patents
An improved ratchet lifting jackInfo
- Publication number
- GB144265A GB144265A GB13233/20A GB1323320A GB144265A GB 144265 A GB144265 A GB 144265A GB 13233/20 A GB13233/20 A GB 13233/20A GB 1323320 A GB1323320 A GB 1323320A GB 144265 A GB144265 A GB 144265A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- lifting jack
- ratchet lifting
- improved ratchet
- 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
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)
- Handcart (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Knitting Machines (AREA)
Abstract
144,265. Ottolenghi, A. June 3, 1919, [Convention date]. Jacks. - Consists chiefly in pawl-operating mechanism for ratchet lifting-jacks. The rocking lever 6 is pivoted to the casing of the jack, one end of the pivot carrying a pivoted rod 9 which is slotted to receive the free ends of springs 11 projecting inwards from the pivots of the pawls 4. When the rod 9 is in the position shown in Fig. 2 the pawls are engaged; they are disengaged by swinging the rod downwards.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT144265X | 1919-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB144265A true GB144265A (en) | 1920-10-07 |
Family
ID=11145051
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB13233/20A Expired GB144265A (en) | 1919-06-03 | 1920-05-13 | An improved ratchet lifting jack |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB144265A (en) |
-
1920
- 1920-05-13 GB GB13233/20A patent/GB144265A/en not_active Expired
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