Cutoff saw

Details Cutoff saw Cutoff saw

1972-04-19

1976-01-06

Thesz, Jr., Joseph M.

Registers

Platform operated

Platform actuated traffic counters

235 92DM, 235 92R, G06M 700, G06M 302

Patent

active

039314987

ABSTRACT:
Logs which are to be divided into standard length blocks are first measured and their total length is displayed visually on an electronic readout device. Based on this length measurement, an operator selects one of several standard lengths and causes the log to advance relative to a cutoff saw where it is then cut. Total length measurement is determined by presetting a counter with a count representing maximum possible log length, down counting the counter when the trailing edge is detected and stopping the count when the leading edge reaches a reference position. Movement of the log is obtained from a tachometer generator mounted to rotate with a conveyor drive and an electronic circuit converts the output of the tachometer generator into pulses each representing a predetermined and convenient unit of length measurement.

REFERENCES:
patent: 3549870 (1970-12-01), Lay
patent: 3562498 (1971-02-01), Darling
patent: 3666928 (1972-05-01), Burke
patent: 3678253 (1972-07-01), Johnston

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