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 135
This regulator is designed to reduce and controlthe pressure of steam as used for various pur-poses in manufacturing and steam-heating, and isclaimed to be especially adapted to paper dryers,English can-dryers, slashers, &c., and is beingadopted and approved v^herever it is desirable toregulate…
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