(under subclass 49) Implement provided with a guide#, and with means to prevent exposure of the tool* beyond a predetermined distance from the opening in the implement.
(1) Note. The means to limit tool projection may include (a) a part which is movable to and from the use position of the tool so as to engage and locate the tool end of the piece at said use position, or (b) a part engageable with the tool end of the piece, or with a surface which is not part of the implement (e.g., a work surface), for locating the piece preliminary to operation of advancing means for moving the
tool end a predetermined increment of advance through the opening.
SEE OR SEARCH THIS CLASS, SUBCLASS:
58, for an implement including means for reinforcing the tool end of a piece of solid material for rubbing contact extending from an opening in a support.
65, for an implement having means to feed the solid material in a step-by-step manner for a plurality of predetermined increments.
