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How does a Mechanical Scale work ? (Spring Scale)

The two types of scales: a Hanging Scale and a Floor Scale. The Hanging Scale using a Rack and Pinion Gear and two springs to tell us how far much weight is on the scale. The Pinion Gear turns and ...
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Spring Scale

Hanging spring scale with a "Chatillon / Iso-Seal / Type-4700 / Win-Holt / Equipment Corp." inscription. scale housing: 61 cm x 38.7 cm x 10.8 cm; 24 in x 15 1/4 in x 4 1/4 in ...