Us684346a Grindingmill Google Patents
GRINDING-MILL. SPECIFICATION forming part of Letters Patent No. 684,346, dated October 8, 1901. Application filed January 26, 1900. Serial No. 2,874. and capable of application to various forms of grinding-mills. In the accompanying drawings, which form a part of this application, Figure 1 is a transverse section through a feeding-box of a.