US264179A Stone and ore crusher Google Patents
Instead of the fiat fixed jaw-plate in common use in stone and ore crushers of this class, I use a cylindrioaljaw, as shown at L, which is preferably constructed in sections, L, as in-' dicated in the drawings, but may consist of a single casting, and may have a smooth crushing-surface, as shown in Fig.3, or a corrugated crushing-surface, as shown in Fig. 4; or the surface may be furnished ...
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