Modular blades for tire shredder

A primary shredder for reducing tires to rubber chunks comprising,

• intermeshing rotary shears, each shear having a plurality of cutting wheels on parallel axes, each wheel having an axially rotatable core rotationally driven by an axially extending hub, the core having a radially extensive central portion and with radially less extensive lateral shoulders on opposite sides of the central portion,
• a plurality of inwardly truncated pie-piece shaped segments supported by the shoulders and fastened to the central portion of the core and whose outer periphery extends beyond the radially extensive central portion as a pair of serrated disks, the outer periphery of each segment capped by a removable two-piece blade, each blade having a removable outwardly facing blade member and an inwardly facing blade member to which the outwardly facing blade member is fastened, the combined width of the blade members approximately equal to the width of a pie-piece segment,
• whereby shearing action between intermeshing cutting wheels occurs at least between the outwardly facing removable blade members.

A shearing tool for a rotary shear comprising, an axially rotating hub carrying annular cutters for shearing of tires against a similarly rotating hub, each cutter having a plurality of two piece blades at an outer periphery of each annular cutter, the blades having a first top segment working against the similarly rotating hub and a side-by-side relation to a second segment, whereby the side-by-side first and second segments are independently replaceable from a cutter.

In a shearing tool for a rotary shear of the type having an axially rotating hub carrying annular cutters for shearing tires against a similarly rotating hub, the improvement comprising,

• a two-piece blade radially outward of the axially rotating hub and mounted on a support with a first circumferential removable blade segment working against a similarly rotating hub and a second circumferential removable blade segment in side-by-side relation to the first segment.