Balance with clock-like display

Details Balance with clock-like display Balance with clock-like display

1984-01-09

1986-05-27

Goldberg, E. A.

Weighing scales

Weigher responsive material control

Feed

177164, 177173, G01G 1302, G01G 2314

Patent

active

045910111

ABSTRACT:
An optical display is provided to guide the operator during metering of a substance to a desired value. The desired value is entered into a computer and the substance to be metered is applied to a balance. The display is in the form of a clock having a coarse and fine indicator hand. During the coarse metering at the start of the metering cycle, the coarse metering hand is rotated at a first rotational speed relative to the metering rate, i.e. the rate at which the substance is being applied to the balance. During the fine metering phase, namely when the weight on the balance approaches the desired weight, either the same or another hand moves at a rotational speed relative to the metering rate which exceeds the first rotational speed, thereby expanding the sector over which the hand moves while a given amount of the substance is being applied. This greatly facilitates the operator's control over the process and decreases the possibilities that excess weight is added.

REFERENCES:
patent: 942942 (1909-12-01), Sonander
patent: 2121227 (1938-06-01), Haegele
patent: 2926010 (1960-02-01), Kennaway et al.
patent: 3266583 (1966-08-01), Hale
patent: 3407890 (1968-10-01), Fellows
patent: 3422916 (1969-01-01), Muller

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