Acme egg grading scales
Acme egg grading scales were produced by Specialty Manufacturing Company, St. Paul, Minnesota. In 1922, Acme inventor N.E. Chapman filed for a patent for what he referred to as an egg grading device. The patent was granted in June 1924. Early Acme egg scales were of aluminum construction. Each scale has nine fins that are lifted to determine an egg's weight. The weight of the egg lifts individual fins that rise until the precise weight of the egg is determined
Picture No
11042030
Media ID
46876473
Size
6000px x 4004px
(4.6MB)
Credit
(c)Maurice Collins Images Collection /Mary Evans Picture Library
Source
Photograph of an original object in the Maurice Collins Collection
Date
1924
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Acme Antiquarian Collectable Contraption Eggs Ephemera Gadget Gimmick Gizmo Grade Grades Grading Measure Measurement Measures Measuring Quirky Scales Scaling Specialty Weighing Weights Widget
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