Boots – shoes – and leggings
Patent
1983-03-24
1985-10-08
Smith, Jerry
Boots, shoes, and leggings
364154, 364155, 364500, 364551, 73660, 73672, 74 87, 366128, 404103, 404117, 404122, B06B 116, E01C 1928
Patent
active
045464251
ABSTRACT:
A method is disclosed for providing optimal compaction of various materials by controlling the vibration amplitude of an adjustable amplitude vibratory roller. The vibration amplitude is automatically reduced when excessively high jolting forces are sensed by transducers carried by the roller or its frame. The apparatus for carrying out the method includes a continuously adjustable eccentric element in the vibratory roller, at least two signal transducers mounted on the roller drum or frame and axially separated, to generate signals representing the vibrational movement of the roller. A regulating system responsive to the signals from the signal transducers reset the adjustable eccentric element to vary the vibration amplitude and provide optimal compaction.
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patent: 4320643 (1982-03-01), Yasuda et al.
patent: 4330738 (1982-05-01), Paramythioti et al.
patent: 4454780 (1984-06-01), Goehler et al.
Dynapac Maskin AB
MacDonald Allen
Smith Jerry
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