B - Operations – Transporting – 30 – B
Patent
B - Operations, Transporting
30
B
341/91
B30B 15/00 (2006.01) B30B 15/14 (2006.01)
Patent
CA 1178695
ABSTRACT The present invention relates to a speed control and indication system for a mechanical press (2). In order to enable the press to operate at its full running speed on the first cycle thereof after actuation of the clutch (9), the flywheel (6) is driven at a speed higher than the set running speed so that as the mechanical inertia of the drive mechanism will cause the press to slow down to its set running speed. The control circuit modifies the speed control voltage after actuation of the clutch so that the press continues to run at the set speed even after the mechanical inertia is overcome. The signal from the tachometer (24) to the speed meter (28) is modified before actuation of the clutch so that it provides a reading at the set running speed of the press even though the flywheel is running at a nigher speed. After the clutch is actuated, the true tachometer voltage is fed to the speed meter so that it continues to indicate the true running speed of the press.
410227
Olding Michael J.
Schoch Daniel A.
Macrae & Co.
Minster Machine Company (the)
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