Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1983-06-10
1984-08-28
Eickholt, E. H.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
37141R, 37DIG18, 172 40, 172816, 173 49, 173100, 30277, E02F 376
Patent
active
044675399
ABSTRACT:
A front end loader has a loading bucket secured to a tractor and a transversely elongate cutter blade closely spaced forward of a lower front edge of the bucket. Improved apparatus for reciprocating the blade in forward and aft directions relative to the front edge of the bucket is disclosed. A force transmitting beam has a resonant frequency with at least one node and first and second anti-nodes at the resonant frequency. A source of vibrations at or near the resonant frequency is coupled to the beam near the first anti-node to vibrate the second anti-node about a neutral position. The beam is secured near one node so as to locate the neutral position of the second anti-node in spaced relationship from the cutting blade within striking distance thereof. The second anti-node thus applies unidirectional force impulses to the blade in a forward direction as the second anti-node vibrates to drive the blade intermittently forward.
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Eickholt E. H.
Resonant Technology Company
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