This folder contains correspondence and other documents pertaining to a patent infringement suit, which, when settled on November 29, 1911, sustained Edison's key crushing-roll patents. Most of the documents are by Edison's counsel Louis Hicks, and some contain marginalia by Edison. Also included is a letter by Walter S. Mallory of the Edison Portland Cement Co. concerning the introduction of new pulleys at the cement works in Stewartsville, New Jersey, in 1907.

All of the documents have been selected except for duplicates.

Other documents relating to this case can be found in Harry F. Miller File, Group 2: Allis-Chalmers Case Settlement in Part V of the microfilm edition and in Edison v. Allis-Chalmers Co. et al. in the digital edition.