. American engineer and railroad journal . Journals 51<. x 10 ins. Hack—Diameter .. .. 40 ins. Journals 7 V2 X 12 ins. Wheel Base. Driving 13 ft. 8 ins. Rigid 13 ft. 8 ins Total engine 33 ft. 9% ins. Total engine and tender 62 ft. 10^ ins. Weight. On driving wheels 140,800 lbs. On truck (front) 27,680 lbs. On truck (back) 46,700 lbs. Tolal engine lbs. Total engine and tender (about) lbs. motives. The following is quoted from a letter from to the journal mentioned: Of course, at first sight it appears an impossibility to putthe ring over the flange of the , t
. American engineer and railroad journal . Journals 51<. x 10 ins. Hack—Diameter .. .. 40 ins. Journals 7 V2 X 12 ins. Wheel Base. Driving 13 ft. 8 ins. Rigid 13 ft. 8 ins Total engine 33 ft. 9% ins. Total engine and tender 62 ft. 10^ ins. Weight. On driving wheels 140,800 lbs. On truck (front) 27,680 lbs. On truck (back) 46,700 lbs. Tolal engine lbs. Total engine and tender (about) lbs. motives. The following is quoted from a letter from to the journal mentioned: Of course, at first sight it appears an impossibility to putthe ring over the flange of the , the internal diameterof the ring being smaller than the outside diameter of theflange; but it is exactly the same thing as putting a half-crown through a hole the size of a shijling cut in a piece ofpaper. There is not the slightest difficulty in it. Of course,the rings have to be properly proportioned so as to get elas-ticity enough. I believe that having in view the early develop-ment of superheated steam, it becomes compulsory to have. \ SOLin PISTON WITH THREE SOLID KINGS. floating rings, and also compulsory that they should be uncut,so that any pressure of steam behind the ring should not pressthe ring against the inside of the cylinder. It has hithertobeen thought that to have a solid floating ring one must havea junk ring, which adds weight and complication, and thingsthat may work loose. A clearance of three or four or fivethousandths of an inch is sufficient between the outside edgeof the ring and the cylinder. A floating ring has the greatadvantage of accommodating itself to the form of a cylinder,which is not round throughout its whole length, as we allknow, and in this respect the solid floating ring is very super-ior to the solid piston without any packing ring, which, ofcourse, cannot accommodate Itself to any ovaling of thecylinder. 444 AMERICAN ENGINEER AND RAILROAD JOURNAL.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
