2. GYRATORY CRUSHERS
CRUSHING 2. GYRATORY CRUSHERS The original patent for the gyratory crusher was granted to Phile tus W. Gates in 1881. This ... the design was modified to eliminate the impact of material on the bottom shell. Spider. There are two types of spider designs in current use and both provide the support for the spider bushing. The type manu factured by AllisChalmers features a 360D circular rim ...