. Machinery and processes of the industrial arts, and apparatus of the exact sciences. DUBOYSS WATER METER. 223 Fiff. section in Fig. 70. The contrivance consists of two basin-shaped vesselsapplied to each other so as to enclose between them a cavity, whichis divided by a flexible diaphragm of India-rubber. To the central partof this diaphragm is fixed a weight D with a double metallic disk, includ-ing between its parts the sheet of rubber, and adapted in form to thecentral bases of the weight and its disk are-kept in position by a rod ywhich passes through thebases, and serve
. Machinery and processes of the industrial arts, and apparatus of the exact sciences. DUBOYSS WATER METER. 223 Fiff. section in Fig. 70. The contrivance consists of two basin-shaped vesselsapplied to each other so as to enclose between them a cavity, whichis divided by a flexible diaphragm of India-rubber. To the central partof this diaphragm is fixed a weight D with a double metallic disk, includ-ing between its parts the sheet of rubber, and adapted in form to thecentral bases of the weight and its disk are-kept in position by a rod ywhich passes through thebases, and serves to guidethe movement of the dia-phragm. At M and N arethe apertures for the recep-tion and discharge of thewater. It is seen, by thedirection of the arrows inFig. 70, that if water entersthrough the duct ME it willpress upon the under surface Of the diaphragm aud disk, Duboyss Water Meter—interior. gradually filling the entire vessel, the water above the diaphragm mean-while escaping through FN, so that finally the flexible diaphragm willapply itself closely against the upper surface of the vessel. During this pr
Size: 1770px × 1412px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, booksubjectmachinery, booksubjectscientificappa
