”No. 57,386.—William H. Sangster and Justin C. Ware, Titusville, Penn.—Valve for Steam Engines.—August 21, 1866.—A bent tube forms tho valve, its open ends moving on the seat in connection with the ports; a lip on each end of the valve pusses through the port into the cylinder and is struck by the piston, which thus actuates the valve and reverses the steam.

Claim.—The steam-chest, the steam cylinder, and the sliding pipe G, constructed and aranged to operate in the manner and for the purpose herein specified.”

Reference Data:

Commissioner of Patents Annual Report, by United States Patent Office, 1867, pages 1097-98