Stone working – Dressing – Rotary cutter
Patent
1981-03-04
1983-07-19
Whitehead, Harold D.
Stone working
Dressing
Rotary cutter
51 80A, 125 26, B28D 118
Patent
active
043938566
ABSTRACT:
Apparatus for milling building blocks comprise a first arrangement for milling said blocks at a first side thereof, and a second arrangement for milling said blocks at a second side thereof. Apparatus are located between the mentioned first and second arrangements for accelerating the blocks after their milling at the first side. Apparatus further are located between one of the mentioned first and second arrangements and the accelerating apparatus, for turning the blocks for their milling at a second side thereof by 180.degree. about an axis extending parallel to the direction of transportation of the blocks.
REFERENCES:
patent: 2958163 (1960-11-01), Cammerzell
patent: 3575155 (1971-04-01), Byrd
patent: 3895722 (1975-07-01), Pluntz
patent: 3918210 (1975-11-01), Mori
patent: 4164279 (1979-08-01), Dubuit
patent: 4165006 (1979-08-01), Brusa
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