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 432
jJl-3V5i_ fl … Made expressly for Iron Foundries, and wili produce a stronger blastwith the same amount of power, than any other blower. The running parts of this Blower are made of cast steel. The shaft is made of toolsteel and tempered. The pulleys are made of cast steel, which posesses sujjerior durabilityand…
