Multi-purpose lifting and mounting assembly
OwnerRussell C. Hanscominventor
Life of this patent
Estimating the term…
Abstract
A convertible boom is supported by an upstanding post and base frame. The boom is provided with appropriately located connectors so that it may be attached to the upper portion of the post to form a hoist or it may be connected proximate the bottom of the post to create a jacking device. In both cases, a portable jack is used to actuate the boom. The end of the boom may be equipped with a rotatable and tiltable cradle having extendable arms. The upstanding post may be provided with a rotatable workpiece mount which includes a plate having a plurality of outwardly projecting pins which extend through slotted connector rods. The rods can be arranged in a variety of positions to facilitate connection to a workpiece.
Claims8
A lifting and mounting apparatus comprising:
- a base frame;
- an elongated upright member having a bottom portion connected to said frame;
- first support means located on the base frame proximate said bottom portion;
- second support means located on the upright member above said bottom portion and upper pivot connection means located about the top portion of said upright member;
- a lifting beam having an attachment end portion and a pivot end portion adapted for connection to said upright member wherein said attachment end portion includes a cradle means adapted to be releasably connected thereto;
- said cradle means comprising a
- pivot rod extending beyond the end of the attachment end portion in a direction generally coextensive with the longitudinal axis of said lifting beam interconnecting said cradle with said attachment end portion;
- a carriage member comprising an elongated beam extending transversely of said rod and mounted thereon for rotation about its normal axis, said rod freely extending through the carriage member to a terminal end having a first bracket immovably attached thereto;
- second bracket means immovably attached to said carriage member in a manner coextensive with and offset from said first bracket means;
- and,
- adjustable linkage means interconnecting said brackets for regulating the angularity of said carriage member about said normal axis;
- said lifting beam further including pivot connection means located intermediate of said end portions;
- and,
- a jack unit adapted to be secured to said first or second support means and said pivot connection means for raising and lowering said beam.
Dependencies are inferred from the claim text.