B - Operations – Transporting – 65 – G
Patent
B - Operations, Transporting
65
G
198/51
B65G 33/00 (2006.01) B06B 1/16 (2006.01) B65G 27/32 (2006.01)
Patent
CA 1293949
ABSTRACT A spiral elevator is described for conveying prod- uct from one level to another level up a spiral track. The elevator is powered by a two-mass system having an exciter resiliently supported on the vertical tube. The exciter has a pair of parallel shafts with a vibration generating member mounted on each shaft. A motor is provided for driving each shaft independent of the other shaft. Controls are provided for controlling the vibratory forces generated by the vibra- tion generating members to vary the vibratory forces from substantially zero unbalance to a desired level of unbalance to convey product from the inlet to the outlet of the spiral track.
557399
Finlayson & Singlehurst
General Kinematics Corporation
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