Conveyor system for shredder

A method of preventing clogging of a shredder which includes a shredding section and a hopper located adjacent thereto, the shredder also including a pair of endless conveyors arranged to move material from the hopper to the shredding section, the first conveyor being located along the floor of the hopper and the second conveyor being an elongate conveyor arranged at an acute angle of incline with respect to the first conveyor, a nip being formed between the floor conveyor and a first end of the second conveyor, the method including the steps of:

• loading material into the hopper;
• driving both conveyors in a direction to cause the material to move toward the nip;
• and
• selectively causing one of the conveyors to reverse direction while the other conveyor continues to move in the direction required to move material toward the nip.

A mobile yard and garden waste shredder comprising:

• a frame mounted on wheels;
• a hopper on the frame adapted to receive the waste to be shredded and including an endless conveyor on its floor;
• a drive system for moving the floor conveyor to transport waste to a first end of the hopper;
• a rotatable hammer mill located at the first end;
• means for rotating the hammer mill to shred waste conveyed thereto;
• a second conveyor mounted to the frame and inclined at an acute angle with respect to the floor conveyor, a first end of the second conveyor being generally adjacent the hammer mill and being spaced apart from the floor conveyor;
• a drive system for moving the second conveyor to assist in moving waste toward the hammer mill;
• and
• means for selectively reversing the direction of movement of one of the conveyors.

A shredder comprising:

• a shredding section including a rotatable hammer mill mounted on a shaft;
• a hopper adjacent the shredding section for receiving material to be shredded, the floor of the hopper being an endless conveyor;
• a drive system for the floor conveyor arranged to move a load carried thereon to the shredding section;
• a second endless conveyor being inclined with respect to the floor conveyor at an acute angle and spaced apart therefrom to form an infeed nip to the shredding section;
• a drive system for the second conveyor arranged to assist in moving a load toward the nip;
• means for sensing the rotational speed of the hammer mill;
• and
• means for stopping at least one of the conveyors when the rotational speed of the hammer mill drops below a predetermined set speed.