Balance weight

(engineering) a weight used in machines to counterbalance a part, as of a crankshaft Also called bobweight
Historical Examples

Variation in height may be obtained by moving the planes and the balance weight.
The Bradys After a Chinese Princess Francis Worcester Doughty

C C is the bed plate and D the balance weight, F the rod leading to quadrant and lever on foot plate.
How to Become an Engineer Frank W. Doughty

A balance weight w, Fig. 907, is necessary to counterbalance the weight of the angle plate.
Modern Machine-Shop Practice, Volumes I and II Joshua Rose

This beam is braced with iron, and has segmental ends with a piston at one end, and a balance weight at the other.
The Progress of Invention in the Nineteenth Century. Edward W. Byrn

The forks between which the belt runs are also provided with a balance weight.
Scientific American Supplement, No. 613, October 1, 1887 Various

This arm striking against the ratchet detent releases the balance weight, and the belt is at once brought on to the loose pulley.
Scientific American Supplement, No. 613, October 1, 1887 Various


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