. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . h modifica-tions which it is claimed render the wearing parts more accessible and more easily stationary jaw is held in place by flat iron bars, having eyes forged on their ends, slip-ping over shafts in the top and bottom of the jaw. By taking out pins in the ends of theupper shaft, and loosening the nuts holding the upper flat iron bars at the back of the rock-breaker, the latter can be slipped off the
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . h modifica-tions which it is claimed render the wearing parts more accessible and more easily stationary jaw is held in place by flat iron bars, having eyes forged on their ends, slip-ping over shafts in the top and bottom of the jaw. By taking out pins in the ends of theupper shaft, and loosening the nuts holding the upper flat iron bars at the back of the rock-breaker, the latter can be slipped off the upper jaw-shaft, and the jaw, pivoting on thelower shaft, can be opened and lowered, making it easy to replace the shoe, die, and cheek-plates. A spring is placed beneath the loose babbitt-lined gib, bearing against the lowerpart of the eccentric of the pitman-shaft, taking up lost motion and jDreventing heating andpounding. The tension of the spring is regulated by a wedge, placed beneath it, and ad-justed by means of nuts on the outside of the pitman. The shoes and dies are composed ofalternate layers of wrought-iron and hardened machine-steel bars placed horizontally on. Kioiu ciu^lur. 576 ORE-CRUSHING MACHINES.
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
