Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 698
e ram, and isheld in position by a stud carrying a guard.This valve is encased by the air-vessel, andaccess is had to it through a door. The bodyof the waste-valve is of cast iron, stronglyribbed, and is guided at its upper end bywings sliding within the bore of the valve-seat, and at its lower end…
Mechanical engineering -- Dictionaries
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