Sentence Examples with the word rotary engine

Probably the most successful one has been a rotary engine invented by Mr Arthur Rigg.1 In this engine the stroke, and therefore the amount of water used, can be varied either by hand or by a governor while it is running; the speed can also be varied, very high rates, as much as 600 revolutions a minute, being attainable without the question of shock or vibration becoming troublesome.