Patent for a new and improved sash fastener. This design consists in "[t]he combination, with a window-sash, of the spiral spring, its inner end resting in the socket, its other in the thimble, locking-plate having the hinge-nib working in the perforation, and [the] thimble receiving and covering the outer end of said spring, and handle, said lock-plate and handle fitting and working in [the] groove and [other] perforation, [a] cover-plate countersunk in the face of said sash, covering said lock-plate, and provided with the perforation and opening" (lines 1-11).