G - Physics – 05 – D
Patent
G - Physics
05
D
74/100
G05D 13/64 (2006.01)
Patent
CA 1131938
TITLE APPARATUS FOR SYNCHRONIZING SPEED AND ANGULAR POSITION OF POWER-DRIVEN MACHINES ABSTRACT OF THE INVENTION The invention provides a simple, yet highly accurate device for synchronizing the speeds of two power-driven machines having separate, variable speed power-drives. A pair of shafts are re- spectively connected to the two machines and mounted in opposed concentric relationship for rotation in opposite directions at rates respectively proportional to the speed of rotation of the two machines. A differential unit is connected between the two shafts, such unit having equal size input and output sun gears respectively connected to the shafts. The planetary output of the differential unit is connected to a speed control element for at least one of the motors respectively driving the machines to vary the speed of such machine to bring it into rotational synchronization with the other machine. In accordance with a modification of the invention, if angular synchronization is also desired, a one-way clutch is provided between one of the shafts and its respective machine which is disengageable by a minimal torque produced by a difference in the rotational speed of the two shafts, and re-engages only in a fixed angular posi- tion when the two shafts are again brought into rotational synchronization.
355605
G. Ronald Bell & Associates
Owens-Illinois Inc.
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