. The street railway review . ve bearing or rubbing surfaces whichslide one upon the other; this class includes ordinary slip joints,all forms of ball and socket joints, finished slip joints with steamengine stufling-box fit, and balanced joints. In the other classarc the expansion joints which depend upon the bending of metalfor their action, and in this class are copper bends and variousforms of the Wainwright expansion joint. The construction of the Wainwright joint is very well shown inthe illustration. There are two heavy end flanges to which are fast-ened the flanged ends of a corrugated
. The street railway review . ve bearing or rubbing surfaces whichslide one upon the other; this class includes ordinary slip joints,all forms of ball and socket joints, finished slip joints with steamengine stufling-box fit, and balanced joints. In the other classarc the expansion joints which depend upon the bending of metalfor their action, and in this class are copper bends and variousforms of the Wainwright expansion joint. The construction of the Wainwright joint is very well shown inthe illustration. There are two heavy end flanges to which are fast-ened the flanged ends of a corrugated tube of soft copper. Insideof the corrugated tube is a straight tube of hard copper fastened tobrass rings at its ends, and on this are carried the inside equalizingrings wliich are of cast iron. Outside the corrugated tube are otherrings, made of cast iron on large joints and brass on the smallersizes. The Wainwright joint depends for its action on the bendingof the copper in the corrugations and the equalizing rings ensure. W JOINT. that no one corrugation shall d<i more than its share of the bending,so that when once properly installed the joint will last a long requires absolutely no attention when once put in position. Each corrugation will provide for 3-16 in. motion, or 14 in. underfavorable circumstances if occasion require. The regular sizes varyfrom 12 to 30 in. in length and are for pipes from ij/ to 16 in. indiameter; one joint will take care of the expansion in 100 ft. ofsteam pipe under ordinary variations of temperature. Mr. Wm. R. Billings, treasurer of the Taunton Locomotive Man-ufacturing Taunton, to whom we are indebted for thedata, writes us that the business in these joints has increased veryrapidly since the improvements found in the equalizing rings andslip tube were applied. The largest joints the company has evermade of this pattern are of a nominal diameter of 30 in., and weremade from 32-in. seamless dr
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
