(under the class definition) Apparatus comprising means especially designed to contact the walls of a cavity in a work piece and impart a shaping or smoothing action thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262, for an encasing shaping surface and a trowel axially movable therein.
365, for a press shaping couple comprising a roll mounted internally of a cooperating drum; see the search notes thereunder.
418, for a female mold and a rotating male shaping member.
426+, for a relatively moving female mold and internal shaping member. 459, for profile tools, per se.
SEE OR SEARCH CLASS
15, Brushing, Scrubbing, and General Cleaning, appropriate subclasses, for means cleaning the interior of a hollow work and for trowels for shaping a flat or single dimension surface.
118, Coating Apparatus, appropriate subclasses, especially
105, for machines for applying and troweling a lining to hollow work.
