nges held pletely equipped forges in the country. Here, too, in together by bolts, and the upper part of the casing hav- this painting, is partially accomplished the illustration ing an inlet connecting with the main reservoir, while of methods scarcely known to the uninitiated. Drop the lower part… … PH1s519 (> class machinery, : PELHAM’S ENGINEER'S GRADUATING VALVE. / is largely attri- Vit which the main valve turns has a service port and an butable to uni- outlet port leading to the outer air, a face port in the formly excellent valve registering with the service port, while a port drop…
Internet Archive · Public domain (published before 1931). Free to use for anything.