Combination vibrating cutter head and crusher
OwnerWilliam P. Mayinventor
Life of this patent
Estimating the term…
Abstract
A cutter head, or excavating bucket; having a forward edge formed for penetrating earth formations, and which may be in the form of teeth; for earth working operations, especially for dredging operations, and the like, and having a vibrator mechanism associated therewith for enhancing the penetrating action of the forward edge of the cutter into an earth formation. Associated with the cutter is a crushing structure which crushes large boulders taken by the cutter down to smaller sizes. The material taken by the cutter, including the crushed boulders, can be removed from the cutter and crusher by water which is drawn therethrough with he material being delivered to a refuse place or to a further processing station.
Claims14
In an earthworking device comprising in combination, an excavatig bucket having a vibrating cutting head, said bucket having a bottom wall extending in the fore and aft direction and open on the forward end, said vibrating cutting head extending across the bottom edge of the bucket at the forward end, support means for connecting the cutting head to the bucket for vibratory movement of the cutting head with respect to the bucket, a vibrator connected to the cutting head and operable for vibrating the cutting head to facilitate penetration of the cutting head into an earth formation, said bucket having a top wall extending in the fore and aft direction, said bottom wall and said top wall being in the form of jaw members, said top wall being oscillatable toward and away from the bottom wall for crushing boulders, said top wall converging with said lower wall in the rearward direction, and said bucket having a rearward opening for removing material including any crushed boulders from the bucket.
A method of working earth formations, especially formations containing rocks and boulders, which comprises;
- presenting a crusher excavating bucket having a cutting edge, a bottom wall and top wall, to a formation, vibrating the cutting edge while advancing it into the formation, receiving the material dislodged by the vibrating cutting edge between the bottom wall and top wall of the bucket, oscillating the the top wall relative to the bottom wall to crush any boulders in the dislodged material which are greater than a predetermined size, and withdrawing the dislodged material including any crushed boulders therein from the side of the crusher which is opposite the cutting edge.
Dependencies are inferred from the claim text.