Locomotive Stoker Co. v. Elvin Mechanical Stoker Co.

MORRIS, District Judge.

Locomotive Stoker Company charges the Elvin Mechanical Stoker Company with infringement of claims 1 and 2 of its Street patent, No. 1,130,443, and claims 1, 3, 5, 8, 9, and 10 of its Gee patent No. 1,082,419. The suit is upon final hearing. The defenses are invalidity and noninfringement. Both patents relate to improvements in stokers for conveying fuel from tender to locomotive and distributing it- over the grate in the locomotive fire box.

[ 1 ] Defendant’s mechanism is made in substantial conformity to Elvin patent, No. 1,267,644, and comprises a screw conveyer, by…