Attachments to drawing boards for fastening and stretching drawing paper

摘要

411,245. Drawing - boards. GWILLIAM, V. C. E. MARTEN-, c/o Westminster Bank, Ltd., Southsea, Hampshire. Feb. 28, 1933, No. 6118. [Class 11.] A drawing-board P has attached to the top edge and underside a longitudinal trough G having a curved bottom in which is loosely disposed a roll of drawing or tracing paper, and is provided with means for clamping paper thereto comprising longitudinal eccentrically mounted rollers or cylinders A, B situated at and extending along the top and bottom vertical edges. The rollers are moved by handles D, E, the roller B coacting with the edge of the board, and the roller A coacting with a resilient strip M of polished brass or other rustless metal which may be V-shape in cross section and is attached either to the edge of the board or to the trough G. The rollers A, B are covered with leather, rubber, &c., to give a better gripping action. The rollers A, B are mounted in brackets C secured to the board screws, and the trough is secured to one of the brackets. The trough is provided with a hinged lid J. Specification 411,245 is referred to.