The Artisan, or, Mechanic's instructor : containing a popular, comprehensive and systematic view of the following sciences ... also biographical notices of eminent scientific men, enriched by portraits : with many interesting and valuable articles relating to the mechanical and useful arts : the whole intended as a companion to the institutes (1825)
Carey, George G · London : Printed for William Cole · leaf 105
THE ARTISAN. and capable of being tamed in a socket the most common and approved kinds of formed in the pipe, so as to open or shut valves. the passage of the fluid, and sometimes to form a communication with either of two … The figure A is the common clack valve : B, a double clack valve, consisting of two semicircular valves; C, a pyramidical valve, consisting of four triangular pieces ; D, a circular valve, turning on an axis ; E, a steam valve of metal, sometimes called a T valve; F, a valve of veiled silk or…