Horizontal comminuting machine particularly for recyclable heavy wood randomly carrying non-shatterable foreign pieces

A horizontal comminuting machine comprising a frame having front and rear ends and spaced apart side walls having a generally horizontal axis mounted on said frame on a laterally extending shaft projecting beyond the ends of said drum;

• bearings journalling said shaft on said frame, comminuting members projecting from the drum;
• a drive connected to power said drum and move said comminuting members in a path of rotation;
• a crosswisely extending anvil mounted on said frame adjacent the path of rotation of said comminuting members to coact therewith in reducing said material;
• a feed works connected with said frame, including a feed surface on which said material is supported and a power driven feed wheel having a generally horizontal axis generally parallel to said drum axis mounted above said feed surface to move said material to said drum;
• a front to rear extending swingable yoke connected to said feed wheel for swinging said feed wheel in a vertical path toward and away from said feed surface;
• said yoke having rearwardly extending arms with releasable clamps thereon and a power operated drive for swinging said yoke about the axis of said drum, the improvement wherein:
• a) yoke mounts are fixed on said frame to pass the drum shaft adjacent of said shaft bearings, each of said yoke mounts having a sleeve around which one of said yoke arms is clamped and pivotally received, there being a peripheral clearance maintained between said sleeves and shaft to avoid imposing load on said shaft.

In a horizontal comminuting machine for reducing recyclable waste wood and other comminutable material or wood which may have non-reducible tramp objects incorporated with it;

• a) a frame having spaced apart side walls;
• b) a generally laterally extending horizontal rotary drum journaled on said frame between said side walls and having a plurality of peripherally spaced comminuting members traveling in a continuous work contacting path;
• c) a drive connected with said rotary drum for moving said comminuting members in said path;
• d) a feed works connected with said frame for delivering said material forwardly to said rotary drum in a longitudinal material feed stream;
• e) an endwisely removable lead anvil with multiple anvil edges spanning said side walls and having end parts, protruding through said side walls;
• f) retention parts consisting essentially of yieldable shear parts normally interconnecting the anvil end parts and side walls to maintain the anvil in an operative position adjacent the path of the comminuting members and yielding when undue pressure is exerted on the anvil to permit the anvil to move from an operative position adjacent said rotary path of the comminuting members to a removed position more remote from said path;
• g) an array of additional and individual separately endwisely withdrawable anvils positioned on said frame downstream from said lead anvil and extending generally in planes generally tangential to said path;
• said additional anvils being configured with laterally spaced apart fore and aft projections, with the projections on said adjacent additional anvils being in confronting alignment to compositely form a grate with openings therein, said additional anvils spanning said frame and said projections having lateral anvil edges, and there being elongate openings of a size and shape in said side walls to permit endwise individual removal of said lead anvil and said additional anvils from said side walls, as well as tangential rearward sliding retraction movement of said additional anvils, said additional anvils having end parts projecting through said openings and being only retained normally in operative position by external shear fasteners interconnecting said side walls and said projecting end parts.

In a comminuting machine for reducing waste wood and other comminutable material which may have non-reducible tramp objects incorporated with it:

• a) a frame having spaced apart side walls;
• b) a generally laterally extending rotary drum journaled on the frame between the side walls and having a plurality of peripherally spaced comminuting members traveling in a continuous work contacting path;
• c) a drive connecting with said rotary drum for moving said comminuting members in said path;
• d) a feed works connected with said frame for delivering said material forwardly to said rotary drum in a fore to aft moving longitudinal material feed stream;
• e) an endwisely removable lead anvil, retractable in a slide path with a dominating vertical component and having anvil edges generally spanning said side walls, said lead anvil having endmost parts protruding through said side walls;
• f) retention parts consisting essentially of yieldable shear parts normally interconnecting said lead anvil endmost parts and side walls to maintain the lead anvil in operative position adjacent the path of the comminuting members and yielding when undue pressure is exerted on the lead anvil and the shear parts are sheared to permit the lead anvil to move from an operative position adjacent said path of the comminuting members to a retracted position more remote from said path;
• g) an array of additional individual, endwisely separately withdrawable anvils positioned on said frame rearwardly of said lead anvil and extending conjunctively in a general tangential path relative to said drum;
• and
• h) said side walls having aligned openings which are of a size and shape in at least one side wall to permit separate endwise removal of said lead anvil and additional anvils through at least one of said side walls, said additional anvils having end parts projecting through said aligned openings, and fastener parts interconnecting said additional anvil end parts with said frame, said additional anvils being only retained in operative position by said fastener parts.