Power control of a stone cutting machine having cutting chains

Details Power control of a stone cutting machine having cutting chains Power control of a stone cutting machine having cutting chains

1978-03-03

1980-01-01

Whitehead, Harold D.

Stone working

Sawing

Endless

5116591, B28D 108

Patent

active

041811151

ABSTRACT:
In a stone cutting machine having a cutting chain rotated by a motor and a separate power feed for the machine, the power consumption of the drive motor is monitored. When the power consumption falls below a minimum, a control signal is generated to increase the feed, and when the power consumption exceeds a fixed maximum, a control signal is generated to decrease the feed. In generating the control signal, the power consumption is scanned only over a pre-determined period, which for power consumption beneath the minimum is approximately twice as long as for the power consumption above the maximum.

REFERENCES:
patent: 4038962 (1977-08-01), Tessner
patent: 4075792 (1978-02-01), Schreiber

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