Mechanical Contracting & Plumbing January-December 1912 . ell me of some manner of quick-ly and accurately cutting a washer forany sized union by any other means thanthe ever ready pocket knife? Apprentice. There is a small machine especiallydesigned for this purpose, and if ap-prentice will write us we will mostcheerfully furnish him with the addressof the manufacturer. Other than that,he can make use of a hammer and theunion itself. Place the rubber over thatpart of the union over which the unitingring slips and, holding the rubber (orleather) firmly in place, hammer therubber with the hamme
Mechanical Contracting & Plumbing January-December 1912 . ell me of some manner of quick-ly and accurately cutting a washer forany sized union by any other means thanthe ever ready pocket knife? Apprentice. There is a small machine especiallydesigned for this purpose, and if ap-prentice will write us we will mostcheerfully furnish him with the addressof the manufacturer. Other than that,he can make use of a hammer and theunion itself. Place the rubber over thatpart of the union over which the unitingring slips and, holding the rubber (orleather) firmly in place, hammer therubber with the hammer until the ironof the union cuts through the rubberthus quickly, easily and accurately get-10 ting a perfectly fitting washer for thatparticular union. The gasket for aflange union may be obtained after thesame fashion. TRAPPING THE RAIN LEADER. Editor Plumber and Steamfitter,—Should the rain leader be trapped, andif so what is best kind of a trap touse? House Owner. We believe that it is customary totrap the rain leader when it drains into RMNLEADER. Fig. 2. the sewer. In drawing number two, wehave shown how this may be accomplish-ed and have also shown an increaserwith a wire protector at the intake endof the rain leader. THE DEPTH AT WHICH WATERMAINS SHOULD BE PLACED. Editor Plumber and Steamfitter,—How deep should the water supply pipesbe buried in order to avoid their freez-ing? M. L. F. Unless some covering be used to pro-tects the pipes against the frosts actionthey should be buried below the line ofthe action of the frost. In some cases PLUMBER AND STEAMFITTER (according to the climate) this would befrom four to six feet deep, while inothers they might have to be buriedsome twelve feet deep or more. Weknow of no uniform rule in this respect. PRESSURE EXERTED WHEN WA-TER FREEZES. Editor Plumber and Stcamfitter,—When water freezes in a pipe, howmuch does it swell and about what isthe pressure exerted? G. H. S. The increase in volume is about tenper cent., and the a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplumbin, bookyear1912
