G - Physics – 05 – D
Patent
G - Physics
05
D
341/7, 342/13.3
G05D 13/62 (2006.01) G05D 22/02 (2006.01)
Patent
CA 1098995
ABSTRACT OF THE DISCLOSURE Hold speed setting control method and apparatus are provided, a method of holding speed settings of continuous drying process equpment con- veying products being dried, when this equipment is being controlled by an automatic speed control monitoring computer apparatus, is disclosed and comprises: determining automatically when the dryer conveyor has stopped, determining automatically the dryer conveyor has been stopped for a full pre- determined initial shutdown period, holding the speed settings of the dryer, if the dryer remains shut down throughout the initial predetermined period, until at least a time has elapsed during which a length of the conveyor support- ing the products overly dried within the dryer, has been moved out of the conveyor when operations are again resumed, and the hold speed setting control apparatus for addition to or inclusion in automatic speed control monitoring computer apparatus, which in turn regulates continuous drying process equip- ment conveying products being dried, according to the invention comprises: a means to receive pulses from a speed indicating means indicating the speed of a dryer conveyor; a means to sense the stopping of the signal being received from a speed indicating means and to signal the start of a timer means, a means to time an initial time period during which no attempt is made to hold a speed and/or temperature setting, and if the time is exceeded to signal the need for holding a speed and/or temperature setting of continuous drying process equip- ment, and a meaans to determine how long the speed setting will be held after a shut down, generally at least the time required to move out products overly dried on a stopped conveyor length within the otherwise continuous drying process equipment, and thereafter to return the control of the continuous drying process equipment to the automatic speed and/or temperature control monitoring computer apparatus.
338751
Emigh Arthur W.
Ward Donald D.
Frayne & Company Robert
Ward Systems Inc.
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