Portable drawing apparatus
OwnerLloyd E. Clarkeinventor
Life of this patent
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Abstract
A drafting set, including a drawing board and a T-square, the board having a foldable easel on its rear side for supporting the board in various adjustable positions, the T-square including a slidable shoe on its outward end for bearing against an edge of the board which is opposite an edge against which the T-square crosshead bears, and permanent magnet means holding the shoe and crosshead from falling away from the board edges.
Claims3
A portable drawing apparatus, comprising in combination, a drawing board and a T-square assembly slidable thereupon, said T-square assembly being comprised of a T-square and a shoe slidable on an outward end of said T-square;
- said drawing board including a foldable easel adjustably mounted on a rear of said board, said easel comprising two generally U-shaped wire frames, a central leg of each said frames being pivotally connected to a same pair of feet, the ends of one said frame being selectively received in a row of holes near one end of a rear of said board, while the ends of the other said frame is selectively received in a row of inclined notches of a slot near an opposite end of a rear of said board.
Dependencies are inferred from the claim text.