GB264324A - Improvements in or relating to grinding, crushing, pulverizing, mixing and separating machines - Google Patents

Abstract

264,324. Rees, D. J. Jan. 20, 1926. Ball-and-ring mills; roller-and-ring mills.-In a grinding, crushing, pulverizing, mixing, and separating machine of the type in which a shaft rotates a carrier plate, spider, or arms to which is attached one or more roll-heads, pushers, balls, or other suitable, grinding heads which crush, grind, or mix the materials against a ring or die, resilient means is interposed between the driving- member and the grinding-head or similar device and carries or supports the head and gives it a positive directional drive. The resilient means may consist of one or more springs of laminated or leaf type secured to the driving-shaft of the machine and to which the grinding-head or similar device is attached. As shown in Fig. 1, the shafts h of the roll-heads are carried by a spring carrier g secured to the lower end of the driving-shaft a. The carrier consists of a casting formed with two parallel grooves in which are held two curved springs l by means of inverted channel-shaped members m and keys n.. The shafts h are mounted on transverse shafts k carried by the springs l. In a modification, Fig. 3, the grinding-rollers v are mounted on transverse shafts w at the outer ends of pairs of laminated springs u secured to the arms of a spider t keyed to the driving-shaft s. The die-ring 0, y may rotate in the opposite direction to the shaft a, s.