IT1225717B - Parallelograph and universal drafting device - Google Patents

Abstract

In the drawing TABLE 1:- the universal drafting device FIGURE A with view C and section D+D and the parallelograph Figure B with views E and F are shown. The parallelograph seen from the rear Figure B has the task of transferring a line Figure 1 in a parallel manner to the front view Figure 2. The universal drafting device seen from the front Figure A mainly consists of a T square consisting of 2 millimetred arms at a right angle Figure 3, of the handhold Figure 4, of the base support Figure 5 with a graduated section at 90 degrees and movable clips.The universal drafting device Figure 3, 4 and 5 by means of movable clips Figure 7 slides along the line Figure 1 of the parallelograph in this way giving a traverse movement. Having in this way obtained parallel and traverse movements and by means of the T square Figure 3, which in turn rotates by 90 degrees, it is possible to draw on the surface straight, parallel, perpendicular lines and graduated sloping lines, facilitating the creation of technical drawings.