Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1990-02-15
1992-02-04
Rachuba, M.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 76R, 125 12, 125 1301, B24B 700
Patent
active
050850083
ABSTRACT:
A production line, continuous feed, high volume output apparatus for cutting, grinding, and/or polishing concrete or fired masonry units into finished masonry building materials. A conveyor belt moves the masonry units from an input station through a processing station where the masonry units are subjected to abrasion treatment by a rotating working head. The working head may take the form of saw blades or one or more horizontal cylindrical drums disposed above the conveyor path with the axis of the horizontal cylindrical drums normal to the conveyor path. The height of the working head above the conveyor path is adjustable. In the drum form of the working head, an abrasive, such as synthetic diamonds is mounted in a matrix in a spiral array. Lateral movement of the masonry units off of the conveyor path is restrained by adjustable guide rails. During abrasion treatment the position of the masonry units on the moving conveyor belt is additionally sustained by horizontal rollers spring-biased downwardly onto the tops of the masonry units from the tray to which the working head is rotatably mounted. Optionally, vertical rollers spring-biased horizontally against the sides of the masonry units also sustain the masonry units during abrasion treatment. A fluid under pressure is used to evacuate dust, cuttings, and heat from the working head and the finished masonry units.
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patent: 4708309 (1987-11-01), Walter
Gledhill Scott
Jennings Gilbert M.
Powell Arthur T.
Stock Norman R.
Rachuba M.
Versicut, Ltd.
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