Crucible handling device
OwnerRawley T. Gregoryinventor
Life of this patent
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Abstract
The invention is a device that is used to securely hold a crucible for lifting by a lifting device. It has a circular frame with a top bracing leg that ensures straight vertical lifting and proper alignment of the rigging. The frame diameter is slightly larger than the crucible. Vertical pieces extend downward from the top of the frame. At the bottom end of each of these vertical pieces, a hinged piece is attached. On the hinged pieces, a bottom rigging retainer is attached. The bottom rigging retainer allows the rigging to freely pass through it. The bottom rigging retainer with the hinged piece forms a loop through which the rigging is thread. The rigging securely holds the bottom of the crucible. A lifting device is attached to the riggings to lift the crucible. The frame can be made adjustable to fit many sizes of crucibles.
Claims15
A handling device for lifting a crucible with a diameter that releasably attaches the crucible to lifting device for lifting and lowering comprising:
- a. a frame that has leg pieces each with a center end and an outward end and whose length is slightly larger than the radius of the crucible and the leg pieces are attached together at a point at the center end and, the frame has vertical pieces, each with a top and bottom end and each of the vertical pieces' top end attaches to the outward end of the leg piece such that when the frame is centered over the crucible the frame is slightly larger than the crucible's diameter and hinged pieces attached to the bottom end of each of the vertical pieces and each hinged piece has a bottom ringing retainer and the frames heights is approximately the crucible's height;
- and,
- b. rigging adapted to pass through the bottom rigging retainer;
- and
- c. a top rigging retainer means that is adapted to allow the rigging to pass through it attached to the top of the frame;
- and,
- d. a means for attaching rigging to the lifting device;
- and,
- e. a means for attaching the frame to the lifting device;
- and
- f. whereas the lifting device is attached to the frame and the frame is then positioned over the crucible and said frame is lowered by the lifting device and positioned over the crucible and lowered and said means for attaching the frame to the lifting device is detached and said rigging is attached to the lifting device, and the lifting device begins to lift enabling the frame and the rigging to securely grab the crucible and as said lifting device continues the crucible is lifted.
A handling device for lifting a crucible that releasably attaches the crucible to lifting device for lifting and lowering comprising:
- a. the frame comprises:
- (1). a leg piece with ends;
- and
- (2). a upper ring with a diameter that is slightly larger than the diameter of the crucible and each end of the leg piece is attached to the upper ring and the leg piece passes through the center of the circle formed by the ring;
- and
- (3). vertical pieces, each with a top and bottom end and each of the vertical pieces is attached to the upper ring near the top end of the vertical piece and two of the vertical pieces attach to the leg piece at the leg piece's ends, and,
- (4). hinged pieces attached to the bottom end of each of the vertical pieces and each hinged piece has a lower rigging retainer;
- and
- b. rigging;
- and,
- c. a top rigging retainer means that is adapted to allow the rigging to pass through it attached to the top of the frame;
- and,
- d. a means for attaching rigging to the lifting device;
- and,
- e. a means for attaching the frame to the lifting device;
- and
- f. whereas the lifting device is attached to the frame and the frame is then positioned over the crucible and said frame is lowered by the lifting device and positioned over the crucible and lowered and said means for attaching the frame to the lifting device is detached and said rigging is attached to the lifting device, and the lifting device begins to lift enabling the frame and the rigging to securely grab the crucible and as said lifting device continues the crucible is lifted.
Dependencies are inferred from the claim text.