Mechanical Contracting & Plumbing January-December 1908 . tile pipe, thenceiiirough the broken stone medium—-which, of course, provides a large aerat-ing surface to accelerate purification—into the upper line, thence into the upjierpart of the tank and finally by way ofthe house drain and the vent stack intothe outer atmosphere above the the relatively warm temppra- ture of the plumbing system in thehouse will assist in bringing about thedesired movement of air. After the tile pipes are imbedded inthe broken stone a thin mattress of salthay or other material is used before theea
Mechanical Contracting & Plumbing January-December 1908 . tile pipe, thenceiiirough the broken stone medium—-which, of course, provides a large aerat-ing surface to accelerate purification—into the upper line, thence into the upjierpart of the tank and finally by way ofthe house drain and the vent stack intothe outer atmosphere above the the relatively warm temppra- ture of the plumbing system in thehouse will assist in bringing about thedesired movement of air. After the tile pipes are imbedded inthe broken stone a thin mattress of salthay or other material is used before theearth is thrown back into the trench, asa means for keeping the earth fromreaching and clogging the spaces be-tween the broken stone. The tanks asinstalled in the Haworth residences arebuilt in sections, which fact facilitatesinstalation, and when the job is finallycompleted nothing is visible, the trenchbeing covered with the lawn and thetank being located only by a manholecover flush with the ground surface. Noattempt will be made to outline sizes,. Two Elevations of Biological Tank. the pictures sufficing to give a generalconception of the wmk. The conditionsof the character of the soil, the topo-graphy of the site and the size and char-acter of the occupancy of the buildin-;govern to a large extent the detailed fig-ures, which are given by tlie companywhich Ml-. Ashley has established toauthorize and govern its instalation. Detail Parts of System. An accompanying diagram will serveto indicate the general features of thetank. The main body is substantially alarge iron pipe, built in two parts, onefitting into a flanged recess of the third or top part brings the top ofthe tank to the ground surface. Afterthe excavation for the tank is made, con-crete is spread over the bottom of theexcavation, and the iron pipe constitut-ing the tank is then lowered in the concrete bottom and within the tank is added a further supply of con-crete in order to insure a wa
Size: 1524px × 1640px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., book, bookcentury1900, bookdecade1900, bookidmechcontract1908toro
