Abstract: A rack structure mounted to a vehicular hitch socket is provided to include a first support tube received within the hitch socket, with a second support tube pivotally mounted in a selective latching arrangement relative to the first support tube, with a third support tube fixedly and orthogonally mounted to the second support tube containing a plurality of hook legs thereon for engaging a bicycle frame for support of the bicycle relative to the rack apparatus.

Abstract: The drafting instrument of the invention (10) disclosed herein generally compromises a planar body in a quadrilateral, symmetrical form, having four perimeter sides (22,24,26 and 28), interconnected end to end to form a quadrilateral configuration and show an open space (40) in the interior of the body, and of which two pairs of sides are right angles to each other and positioned opposite and symmetrical to each other on the planar body. The instrument is provided in two primary embodiments, the first, adapted from a 45 degree triangular instrument, where side intersections of the present invention comprises a 135 degree, a 90 degree, a 45 degree and a 90 degree interior angle, respectively and the second adapted from a 30/60 degree triangular instrument, where side intersections of the present invention comprise a 150 degree, a 90 degree, a 30 degree and a 90 degree interior angle, respectively.