Weighing scale
The balance (also balance scale, beam balance and laboratory balance) was the first mass measuring instrument invented. In its traditional form, it consists of a pivoted horizontal lever with arms of equal lengththe beamand a weighing pan suspended from each arm (hence the plural name ""scales" for a weighing instrument). The unknown mass is placed in one pan and standard masses are added to the other pan until the beam is as close to equilibrium as possible. In precision balances, a more accurate determination of the mass is given by the position of a sliding mass moved along a graduated scale. Technically, a balance compares weight rather than mass, but, in a given gravitational field (such as Earth's gravity), the weight of an object is proportional to its mass, so the standard masses used with balances are usually labeled in units of mass (e.g. g or kg).
Computing-Tabulating-Recording Company
The Computing Scale Company of America was a holding company, organized in 1901 and amalgamating as subsidiary companies The Computing Scale Company, Dayton, Ohio; The Moneyweight Scale Company, Chicago, Illinois; The W.F. Simpson Company of Detroit, Michigan; and The Stimpson Computing Scale Company of Elkhart, Indiana.
In 1891, Edward Canby and Orange O. Ozias, two businessmen from Dayton, Ohio, purchased the patents for the newly invented computing scale and incorporated the Computing Scale Company for the production of commercial scales.