. The sanitary news : healthy homes and healthy living : a weekly journal of sanitary science. Fig. cup being very light, is readily lifted outof the mercury by the inflowing air the momenta partial vacuum is formed in the pipe—and isso shown in Fig. 2—but drops back into thewater the moment the demand for air Fig. 2. The mercury seal will resist a pressure on thesewer side, of one-quarter pound to the squareinch, and is equal to a water seal of seven mercury holding cup fits over, and is lockedto the body or cylinder by a bayonet joint, andthe body is in turn attach
. The sanitary news : healthy homes and healthy living : a weekly journal of sanitary science. Fig. cup being very light, is readily lifted outof the mercury by the inflowing air the momenta partial vacuum is formed in the pipe—and isso shown in Fig. 2—but drops back into thewater the moment the demand for air Fig. 2. The mercury seal will resist a pressure on thesewer side, of one-quarter pound to the squareinch, and is equal to a water seal of seven mercury holding cup fits over, and is lockedto the body or cylinder by a bayonet joint, andthe body is in turn attached to a spud solderedin the crown of the trap. The body also dipsinto the mercury, and thus forms an absolutelygas-tight joint. Lugs are cast on the body, sothat the whole may be secured to the adjacentwall to sustain the inlet and trap firmly in place. The murcury holding cup, body and collar,are of cast iron, and the inverted cup valve ispressed out of sheet steel. All the parts aremade rustless, by the Bower Baiff process,which affords complete immunity from corro-sion. It is simple, reliable, economical, andaffords perfect security against syphonage; ad- 6o THE SANITARY NEWS. [Vol. VIII,.No. 120 mits air freely- when the sewage is passing,allows the waste pipe to fill with fresh air afterevery flush, and tends to
Size: 1936px × 1291px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1800, bookdecade1880, bookidsanitarynewsheal08chic
