A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 75
the return of either liquidor gas, and the liquidarourid the ball keepsthe seat gas-tight. The specific gravityof the ball is butslightly greater thanthat of water, so thata veiy slight head ofwater in B will raise theball. This trap is par-ticularly suitable forclean-water fixtures, such as basins… … ^22mmmm2L Fig. 37. 16 PLUMBING AND GAS-FITTING. 65 gas-tight joint with its seat and prevent the passage of drainair to the building. This trap, and all other traps having the water wayrestricted by mechanical appliance, such as check-valves, areliable to chokage by accumulating hair, small pieces…
Architecture · Building
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