GB282557A - Improvements relating to lifting jacks - Google Patents
Improvements relating to lifting jacksInfo
- Publication number
- GB282557A GB282557A GB43127A GB43127A GB282557A GB 282557 A GB282557 A GB 282557A GB 43127 A GB43127 A GB 43127A GB 43127 A GB43127 A GB 43127A GB 282557 A GB282557 A GB 282557A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stays
- pillar
- lifting pillar
- lifting
- struts
- 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
- B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
- B66F3/08—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated
- B66F3/16—Devices, e.g. jacks, adapted for uninterrupted lifting of loads screw operated actuated through bevel-wheel gearings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
282,557. Butlers Ltd., and Reeves, A. Jan. 6, 1927. Jacks. - To provide additional support to the lifting pillar of a jack when in the extended position, stays or struts are provided which interconnect the lifting pillar and the body. The lifting pillar b is operated by a screw c and ratchet mechanism f and has a lug or lugs p at or about its centre adapted to engage a collar l which is slidable on the pillar and has depending stays or struts k extending into the casing a. In operation, when the lifting pillar has been raised to half its maximum height, the lugs engage the collar and lift the stays, thus giving additional rigidity to the jack during its further extension. Specification 282,556 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB43127A GB282557A (en) | 1927-01-06 | 1927-01-06 | Improvements relating to lifting jacks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB43127A GB282557A (en) | 1927-01-06 | 1927-01-06 | Improvements relating to lifting jacks |
Publications (1)
Publication Number | Publication Date |
---|---|
GB282557A true GB282557A (en) | 1927-12-29 |
Family
ID=9704217
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB43127A Expired GB282557A (en) | 1927-01-06 | 1927-01-06 | Improvements relating to lifting jacks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB282557A (en) |
-
1927
- 1927-01-06 GB GB43127A patent/GB282557A/en not_active Expired
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