Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 218
^fc/^- JMimd Fig. 199. may be changed from composition to rubber by merely re-moving bolt, and substituting one for the other without re-moving the seat. This is of great advantage where a pump isto be used for hot water after being used for cold water. Pump Paris.
Hydraulic machinery · Pumping machinery
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
