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US 3,940,229 AGranted
Apparatus for manufacturing rough faced bricks
AssigneeColumbia Machine, Inc.
InventorJohn R. Hutton
Life of this patent
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AssigneeColumbia Machine, Inc.
InventorJohn R. Hutton
Estimating the term…
Apparatus for manufacturing a brick having a roughened side surface including interconnected, upright, side plates defining a mold cavity having generally the shape of a brick to be formed. A bottom plate is shiftable vertically from a position against the lower edges of the side plates to form a bottom for the mold and a position spaced a distance therebelow. A power-operated pusher mounted above the side plates is shiftable downwardly into the region between the side plates for forcing a brick formed in the mold outwardly through the bottom of the mold when the bottom plate is lowered. One of the side plates has a lip projecting substantially normally outwardly therefrom into the path along which a side of a brick will be moved as it is forced from the mold. This lip scrapes a side of the brick to produce a roughened surface thereon.
Apparatus for manufacturing a brick having a roughened side surface, said apparatus comprising a mold including a plurality of interconnected side plates defining a cavity therebetween having substantially the shape of a brick to be formed and adapted to receive material for molding into brick shape, said side plates having a set of edge margins defining an opening therebetween through which a formed uncured brick may be discharged from the mold, one of said side plates having an elongate lip rigidly secured thereon adjacent said opening, said lip extending substantially parallel to said edge margin of the plate and projecting substantially normally into the path along which a side of a brick moves on being discharged from said mold operable to tear a portion of the material forming said brick from the surface of the brick as it is discharged from the mold to produce an irregularly roughened surface for said brick.
Dependencies are inferred from the claim text.