Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 433
empered. The pulleys are made of cast steel, which posesses sujjerior durabilityand lightness. The blast wheel is made entirely of cast steel, by means of which it isconstructed on a principle which jjroduces the strongest blast with the smallest amountof power. I am putting more labor and expense… … This Blower is adapted for foundries and large forge establishments, and combines thegreatest possible degree of durability and economy of power, makes no noise when runningat its highest rate of speed, and is manufactured regardless of expense. The materials usedin the running parts of these…
