Patent ID: 6729566
Filing Date: 2004-05-04
Classification: B02C

Abstract:
Crusher machinery in the category of a shredder, crusher, hammer mill or ring mill, and for use for crushing material, said crusher machinery comprising a shaft, a housing with support structure for holding said shaft in position for rotation therein, said shaft being multi-sided, said multi-sided shaft having four equally spaced substantially flattened surfaces integrally formed into a square shaft substantially along its length, said shaft holding at least one support spider thereon, said at least one support spider having a spider base, said spider base having an opening therein which is also square, and having a size greater than the four flattened surfaces of the square shaft so as to be accommodated thereon, a pair of spider arms, one of each spider arm extending from opposite sides of said spider base and being connected thereto, a series of rods extending transversely through the spider arms and said rods provided for folding a hammer to each of the spider arms during usage, there being integral extensions provided projecting from either end of the square shaft, said extensions being circular in configuration and provided for mounting said square shaft within the support structure of the machinery, an arcuate grate provided beneath the square shaft and its mounted spider base, spider arms, and hammers, said grate provided for holding any material to be crushed in the housing when impacted during usage of the crusher machinery.