Scott D Gledhill

US Patent:

50850083, Feb 4, 1992

Filed:

Feb 15, 1990

Appl. No.:

7/480244

Inventors:

Gilbert M. Jennings - St. George UT
Scott Gledhill - Salt Lake City UT
Norman R. Stock - St. George UT
Arthur T. Powell - Lehi UT

Assignee:

Versicut, Ltd. - St. George UT

International Classification:

B24B 700

US Classification:

51 74R

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.