Weighing scales – With total register – Integrator of steadily flowing fluent material
Patent
1975-12-16
1979-01-16
Hartary, Joseph W.
Weighing scales
With total register
Integrator of steadily flowing fluent material
198504, 235 92WT, 364567, G01G 1114
Patent
active
041344650
ABSTRACT:
An apparatus for cumulatively measuring the weight of a continuous bulk material conveyed by a belt conveyer, comprising; a pulse generator operatively coupled to the conveyer for generating pulses of the frequency associated with the conveyer speed; a decimal counter for counting the speed associated pulses; a full scale detector coupled to the decimal counter; a load cell operatively coupled to the conveyer for providing an analog signal representative of the weight of the material within a predetermined span of the conveyor; an analog-to-digital converter responsive to the full scale output for converting the analog signal into a bit parallel coded digital signal; logical processing means for modifying the number of pulses obtainable from the decimal counter within one full scale of the counter as a function of the bit parallel coded digital signal and a cumulative counter for counting the pulses thus modified of the pulse number. Preferably, the decimal counter, the logical processing means and the analog-to-digital converter each comprises the most significant digit portion and the less significant digit portions, and the outputs from the most and less significant digit portions of the decimal counter are separately withdrawn for processing to be applied to the cumulative counter, whereby high precision of measurement is attained with a simplified structure.
REFERENCES:
patent: 3559451 (1971-02-01), Hyer
patent: 3578955 (1971-05-01), Kloven
patent: 3610908 (1971-10-01), Karosas
patent: 3714401 (1973-01-01), Yano
patent: 3724720 (1973-04-01), Bullivant
patent: 3754126 (1973-08-01), Williams
patent: 3979055 (1976-09-01), Fathauer
patent: 3985266 (1976-10-01), Wright
Kimura Hitoshi
Takahama Hisataka
Hartary Joseph W.
Kubota Ltd.
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