balance weight

This arm striking against the ratchet detent releases the balance weight, and the belt is at once brought on to the loose pulley.

The forks between which the belt runs are also provided with a balance weight.

The slings seen under the boiler are for hanging a concrete balance weight; this will weigh about 20 tons.

The ball or balance-weight of a clock's pendulum; the weight attached to the plumb-line.

This beam is braced with iron, and has segmental ends with a piston at one end, and a balance weight at the other.