Claims
- 1. A lifting and lowering device for attachment to a goods container having ISO castings or the like fitments, the device comprising a hollow post, a leg slidably housed within the post and having a foot for contacting the ground when lifting or lowering the container, power-operated means connected to effect sliding of the leg relative to the post, upper and lower twist locks carried by the device on one side thereof for lockably engaging the ISO castings or the like of a container to which the lifting and lowering device is to be attached, one of said twist locks being adjustable in position length-wise of the post, said upper twist lock being rotatable between a locked position and an unlocked position, operating means mounted on the post spaced below the upper twist lock and connected to it to effect rotation of the upper twist lock between said locked and unlocked positions, means engagable by a mechanical machine to enable the device to be positioned on a container, and ground-engaging means mounted on the device and adapted when the leg is retracted to contact the ground at positions off-set from the foot to render the device stable when free-standing.
- 2. A lifting and lowering device according to claim 1, wherein said ground-engaging means comprises splayed non-extendable legs secured to the post, which legs, when the sliding leg is retracted, contact the ground so that the center of gravity of the device is central above the three points at which the foot and the non-extendable legs contact the ground.
- 3. A lifting and lowering device according to claim 1, wherein said ground-engaging means comprises auxiliary legs mounted on a framework lockable to and detachable from the post.
- 4. A lifting and lowering device according to claim 1, wherein the ground-engaging means comprises a platform extending from the foot on the side of the post remote from said locking devices.
Priority Claims (2)
Number |
Date |
Country |
Kind |
21146/76 |
May 1976 |
GBX |
|
3152/77 |
Jan 1977 |
GBX |
|
Parent Case Info
This is a continuation, of application Ser. No. 798,861 filed May 20, 1977 now U.S. Pat. No. 4,148,511.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
3447697 |
Morey et al. |
Jun 1969 |
|
3586183 |
Shaffer |
Jun 1971 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
798861 |
May 1977 |
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