Computing Scale-Poise - External
U.S. Patent number: 487,824; Filed: Feb. 15, 1892; Issued: Dec. 13, 1892; Inventor: J. W. Culmer; Assignee: The Computing Scale Company
«In 1892, J.W. Culmer filed a patent for a device he called a "Computing Scale-Poise". The patent describes the devices as follows: "My said invention comprises a sliding device which contains in itself the computing mechanism, the operation of which is effected by the sliding of such device upon the scalebeam of a weighing-scale or the movement of such device in its adaptation for computing the value of articles otherwise measured."»
[Fonte: TechRepublic]
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