RARE dial-reading model Christian Becker Chainomatic Analytical Balance For Sale

About this item:

This scale was used by the University of Rochester until recently. It has a crack in the front left corner that does not affect the operation of the scale and can only be noticed up close. The dial-reading model is very rare. If you have any questions, please ask before offerding.

Use/History (excerpt from Humboldt University article)

Thechain-weightbalance allowed more rapid determination of small weights by substituting a precision chain weight for the small (<100 mg) weights of the traditional balance. Thus, once the operator came to within 100 mg of the desired weight, he/she would no longer need to arrest the beam, open the balance case, add additional weights, close the case, release the beam and observe its swing, etc. greatly speeding the determination of exact weights.This instrument also has a notched beam allowing up to 1 gm of additional mass(for a total of 1.1 gm) to be added without opening the case.

Thechain-weightbalance was patented by Christian Becker in 1915.1Christian Becker introduced aluminum cased balances such as the current model in 1950,replacing the older mahogany cased versions.