Egg scale

Acme Egg grading scale. The specialty Mfg. St.Paul Minn,USA. Patented by N.E.Chapman, No 1499153, 1924. Aluminum beam, weights and pan; painted sheet metal base. The sheet aluminum weights are pivoted on the beam fulcrum pin. As the beam tilts, it collects weights one after the other until there are sufficient to balance the load. Arc fixed to base is graduated 10 - 30 oz per dozen. Unequal arm, weight lifting type. 


Another version of this balance had the graduations marked on the end of each weight, not on the arc.

Exit to the Start-Frame