Stone working – Dressing – Rotary cutter
Patent
1979-11-13
1981-03-17
Whitehead, Harold D.
Stone working
Dressing
Rotary cutter
51 5B, 125 26, B28D 118
Patent
active
042560780
ABSTRACT:
Unfinished bricks are placed lengthwise on the inlet end of a first horizontal frame section, and are pushed one after another toward a discharge station at the opposite end of the section by a plurality of spaced flight bars, which are carried by an endless chain that travels beneath an elongate slot in the center of the first frame section. Four separate grinding operations are performed on each brick as it travels toward the discharge station. At the first station opposite sides of the brick are ground to provide the desired brick width; at the second station two parallel slots are ground in its bottom surface; at the third station a radius groove is cut in one side of each of the two bottom slots; and at the fourth station the top of the brick is ground or rounded off at each end. At the discharge station each brick is pushed at right angles onto a second frame section where flight bars push them transversely between two rotary cutters which cut inclined surfaces on opposite ends of each brick, after which the finished brick is pushed at right angles onto a conveyor belt mounted on a third or discharge frame section which extends parallel to the first frame section.
REFERENCES:
patent: 1945490 (1934-01-01), Oldham
patent: 2958163 (1960-11-01), Cammerzell
patent: 3292310 (1966-12-01), Lefevre
patent: 3918210 (1975-11-01), Mori
The R. T. French Co.
Whitehead Harold D.
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