Fire escape – ladder – or scaffold – Self-sustaining – Scaffold horse
Patent
1994-08-15
1995-07-25
Bray, W. Donald
Fire escape, ladder, or scaffold
Self-sustaining
Scaffold horse
144287, 269289MR, F16M 1100, B25H 100
Patent
active
054354110
ABSTRACT:
A dual purpose roll work stand, adapted to support elongated material and permit the user to easily move the material across the stand surface, includes a base member mounted to a vertical support which can be adjusted to raise or lower the height thereof, a row of discrete ball bearing units mounted to the upper surface of the base member to permit the material rested thereon to be move in any direction and a roller disposed between two brackets that are rotatably secured to the ends of the base by two knurled knobs. The roller may be positioned directly above the upper surface of the base to support the material thereon and moved unidirectionally perpendicular to the axis of the roller. The brackets may be rotated from the upright position along side the base to allow the material to be supported on the ball bearing units and moved omnidirectionally.
REFERENCES:
patent: 4974651 (1990-12-01), Carmon et al.
patent: 5247976 (1993-09-01), Matthews
patent: 5299656 (1994-04-01), Grill
patent: 5337875 (1994-08-01), Lee
Bray W. Donald
Power Tools Specialists, Inc.
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