Weighing scales

Details Weighing scales Weighing scales

1975-05-09

1976-06-08

Hartary, Joseph W.

Weighing scales

Illuminated

Projected

353 40, G01G 2332

Patent

active

039616762

ABSTRACT:
A weighing scales has a base and a platform supported by the base and adapted to support an individual. A transmission mechanism within the base is responsive to movement of the platform for causing pivotal translation of a graduated transparency. A beam of light from a light source is projected along an optical path through the transparency and reflected to a projection screen carried by the platform for read-out of weight. The light source is carried on a support plate which is mounted to the base by means disposed at two points on a line at least substantially parallel to the optical axis and coincident with the optical axis substantially at a fixed axis of the graduated transparency. The transparency is pivotally mounted on the support plate and presents a convex face toward the light source.

REFERENCES:
patent: 2364837 (1944-12-01), Williams
patent: 3512594 (1970-05-01), Grusin et al.
patent: 3547212 (1970-12-01), Grusin

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