On this day in 1905 George Ring was granted the patent for Drafting Table. U.S. Patent No. 795,065.
This invention provides a flat-topped table of any required size, and upon the table there is a mounted rectangular frame, the frame surrounding the table and carrying hinged sliding rules, one of which is adapted to be used in ruling vertical lines and the other in ruling horizontal lines, and at each end of the frame a bar is mounted which is arranged parallel to the end of the frame and which carries a laterally-extending sliding rod upon which is mounted an adjustable head, and upon the head at each end of the table a ruler or rod is pivotally mounted, these rulers or rods serving, respectively, to facilitate in the making of the two sets of lines converging to vanishing points which are necessary in making perspective views.
