. American engineer and railroad journal . Rail Plan and Elevation of Steam Heat Conduit. shows it connecting a locomotive and tender. The joints inthe pipe are made by swiveling elbows. A nipple, with anenlarged end. is inserted in the bore of the elbow, and is freeto turn therein, but is held in place by a cup nut, againstwhich the shoulder, or enlargement of the elbow, bears. Aring of vulcanized rubber is inserted between these surfacesto make the steam-tight joint and to proyide for taking upwear. While adapted to and used for a large number of pur-poses requiring flexible connections, the
. American engineer and railroad journal . Rail Plan and Elevation of Steam Heat Conduit. shows it connecting a locomotive and tender. The joints inthe pipe are made by swiveling elbows. A nipple, with anenlarged end. is inserted in the bore of the elbow, and is freeto turn therein, but is held in place by a cup nut, againstwhich the shoulder, or enlargement of the elbow, bears. Aring of vulcanized rubber is inserted between these surfacesto make the steam-tight joint and to proyide for taking upwear. While adapted to and used for a large number of pur-poses requiring flexible connections, the most severe test has Malleable Iron- Composition. Section of Swivel Joint. been made in connecting locomotives and tenders for steamheating. In this exacting service the arrangement has givenexcellent satisfaction for a period of a year and a half. Itwears well and does not leak. The construction is shown inthe engravings. Metallic Rod metallic packing is for piston rods and value stems. Itconsists of two concentric rings of anti-friction metal, each of which is split longitudinally to put it in place, and the endsare formed into conical bearing surfaces. The inner ring isdivided circumferentially into two abutting portions, and theouter one is encircled by a flat steel spring to keep the packingtogether and to assist in making it tight. When applied to airpump piston rods the packing is inserted in the regular stuff-ing box with a gland of such length that when brought to abearing on the packing the flange of the gland is not quite incontact with the end of the stuffing box. When put into ser-vice the nut is gradually tu
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
