Portable roof winch
OwnerGeorge J. Steinhageninventor
Life of this patent
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Abstract
A portable roof winch comprising a collapsible frame that is adjustable to accommodate the slant of a roof, an extensible beam consisting of two telescoping parts one of which is pivotally mounted on the frame on a vertical axis and the other part being moveable with respect to the pivot and having a manually operable winch mounted thereon at a location adjacent to and spaced from the free end of the moveable part, together with a seat for an operator on the moveable part beyond the winch. A cable is taken up on the winch, extends along the beam and is passed over a pulley at the free end of the fixed beam part. A load engaging hook is attached to the end of this cable.
Claims7
In a portable roof winch,
- a. a collapsible frame for erection on a roof and including a bar which assumes a horizontal position when the frame is erected;
- b. an extensible beam secured to said bar by a pivotal mounting and comprising two telescopic parts one of which is secured to said pivotal mounting and presenting a free end and the other of which is moveable relative to said pivotal mounting and having a free end;
- c. a pulley on the free end of said part which is secured to the pivotal mounting;
- d. a manually operable winch carried by the telescopic part that is moveable relative to said pivotal mounting and located adjacent to but spaced from the free end of that telescopic part;
- e. an operator's seat on the telescopic part on which said winch is mounted between the free end of that part and the winch;
- f. mechanism for holding said telescopic parts of the extensible beam in an adjusted position;
- and
- g. a cable that is taken up on said winch passes over said pulley, and has a free end with load engaging means thereon whereby counterbalance is supplied by the weight of an operator sitting on the seat.
Dependencies are inferred from the claim text.