Method Of Making Metal Packing-Rings

Author:  Wilcox, M. L.
Source:  US Patent 1,116,776
Doc ID:  1914001
Year of Publication:  1914
Abstract:  
To whom it may concern: Be it known that I, Melvin L. Wilcox, a citizen of the United States, residing at Fint, in the county of Genesse and State of Michigan, have invented certain new and useful improvements in methods of making metal packing rings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. This invention is a mothod of making metal packing rings for use in engines and similar machines and is especially adapted for the making of piston rings for internal combustin ingines. In this class of engines it is of importance that the poston rings shall fit the cylinder accruately and that all points around the periphery of the ring shall exert equal outward pressuer against the cylinder.