Stone working – Splitting – shearing – and punching
Patent
1996-10-21
2000-07-25
Rose, Robert A.
Stone working
Splitting, shearing, and punching
125 25, 125 38, 451342, 83678, B28D 132
Patent
active
060925175
ABSTRACT:
An apparatus which is rugged and simple to use, and which can finish shot-crete to an acceptable flatness and finish is disclosed. The efficient mechanical apparatus eliminates the need for skilled hand finishing of concrete or another slurry sprayed on a wall. Labor costs are dramatically reduced to a fraction of generally accepted hand finishing costs. Finished appearance is much improved. The apparatus comprises: a frame; a shearing means which preferably is a revolving drum, to shear the slurry, slidably mounted on a carriage on the frame; carriage motivating and control means for moving the carriage on the frame; and, frame support means for spacing and positioning the frame adjacent to a side of the wall. A preferred aspect of this invention provides for a frame support means which comprises a track mounted on the wall and a tracking member positioned on a top side portion of the frame. When the lower portion of the frame is moved outwardly, the frame may be slid along the wall so that it is positioned to finish another portion of the wall.
REFERENCES:
patent: 2326264 (1943-08-01), Stetler
patent: 4199905 (1980-04-01), Neidigh et al.
patent: 5240503 (1993-08-01), Levy et al.
patent: 5403133 (1995-04-01), Kim
Gallinger G F.
Nguyen George
Rose Robert A.
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