B - Operations – Transporting – 06 – B
Patent
B - Operations, Transporting
06
B
74/19
B06B 1/16 (2006.01)
Patent
CA 1089254
* ABSTRACT OF THE DISCLOSURE Two eccentric weights of a vibrator are mounted, respectively, on two coaxial shafts, one of which is a hollow shaft mounted on the other shaft. The two shafts can be connected for rotation in unison, and can be separated for relative rotation to alter the angular rela- tionship between the weights In the embodiment dis- closed, mechanism is provided to alter the angular rela- tionship between the weights while both shafts continue to rotate. An electric clutch is connected between the driven shaft and the hollow shaft to connect the two coaxial shafts for rotation in unison, and a brake is pro- vided to slow the rotation of the hollow shaft after the clutch is disengaged.
334260
Fetherstonhaugh & Co.
Fmc Corporation
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