Balance

Details Balance Balance

1975-11-06

1977-05-10

Hartary, Joseph W.

Weighing scales

Beam

Coarse and fine sliders

177250, G01G 132, G01G 2126

Patent

active

040222896

ABSTRACT:
A balance beam having a short arm carrying a weighing pan and a long arm whose weight counteracts the torque exerted by the pan on the beam has a longitudinal edge extending over both arms and notched at uniform intervals. A rider weight is movable along the beam for alternative engagement with the notches in the two arms, the spacing of the notches being greater than in an otherwise equivalent balance having notches in the long arm only, and manufacturing tolerances in the making of the notches thus have a smaller effect on the precision of the balance.

REFERENCES:
patent: 1077517 (1913-11-01), Fey
patent: 1779263 (1930-10-01), Seederer
patent: 2473084 (1949-06-01), Williams

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