E - Fixed Constructions – 01 – C
Patent
E - Fixed Constructions
01
C
94/52
E01C 23/12 (2006.01)
Patent
CA 1179541
RESONANTLY DRIVEN PAVEMENT CRUSHER ABSTRACT OF THE DISCLOSURE A pavement breaker including a mobile carrier vehicle is disclosed. A beam is provided having a resonant frequency with a pair of nodes spaced from the input and output ends of the beam and anti-nodes at each end and at the center. An oscillator is fixed to the input end of the beam to vibrate the beam at at least near its resonant freqency. The beam is mounted to the carrier vehicle at the node near the input end of the beam. A weight is superim- posed over the beam at the node near the output end and has a bearing surface adapted to bear downwardly against the beam at that node. The weight is coupled to the vehicle to control the vertical position of the weight. A tool depends from the output end of the beam, and strikes the surface on which the vehicle rests at the vibration frequency of the beam as the tool vibrates responsively to vibrations of the beam. The reaction force generated by the tool is substan- tially absorbed by the weight and not transmitted to the carrier vehicle. The tool is preferably provided with three segments, a middle segment which lies substantially hori- zontally while the beam is stationary, and forward and rear segments which are inclined upward. The forward section allows the tool to follow the ground, while the orientation of the real tool enhances the breaking action of the tool.
396971
Fetherstonhaugh & Co.
Resonant Technology Company
LandOfFree
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