Weighing scales – Weigher responsive material control – Feed
Patent
1974-08-05
1976-06-01
Hix, L. T.
Weighing scales
Weigher responsive material control
Feed
177 25, 177 50, 23515133, 177 70, G01G 1304
Patent
active
039602257
ABSTRACT:
A scale position compensation means for a conveyor belt material transport system, the system including a conveyor belt having a tail end and a discharge end, belt drive means, and a weight signal generating means. Belt travel signal generating means produce a belt travel signal representing the change of belt position. The weight signal generating means produce a first digital weight signal representing a weight of material associated with a portion of the belt adjacent to a first reference point located between the tail and discharge ends. The scale position compensation means are responsive to the first digital weight signal and the belt travel signal to produce a second digital weight signal representing a weight of material associated with the above-mentioned portion of the belt when it is adjacent to a second reference point located between the first reference point and the discharge end. The compensation means comprise a memory for storing the first digital weight signal for a time interval having a duration related to the rate of change of belt position and to the distance between the first and second reference points.
REFERENCES:
patent: 2997175 (1961-08-01), Gordon
patent: 3165195 (1965-01-01), Sass et al.
patent: 3225848 (1965-12-01), Wise et al.
patent: 3311182 (1967-03-01), Rusnack et al.
patent: 3477529 (1969-11-01), Burn et al.
patent: 3494507 (1970-02-01), Ricciardi
patent: 3868643 (1975-02-01), Bullivant
Hyer Frank S.
Karosas Raymond
Hix L. T,.
Hyer Industries, Inc.
Miska Vit W.
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