. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . uffller, ashell provided with an inlet and an outletand a muffling element, inclosed and fill-ing the shell, and consisting of a helically SLIDING DOORS. Mr. C. M. Donaldson, Chardon, Ohio,for many years road inspector for theB. & O. railroad, has patented an impor-tant improvement in sliding doors. By aningenious arrangement ofhanging devices the door iseasily operated, and, combiningstrength and durability, it isimpossible for the door tobuckle, bind or drag and can-not leave the track when
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . uffller, ashell provided with an inlet and an outletand a muffling element, inclosed and fill-ing the shell, and consisting of a helically SLIDING DOORS. Mr. C. M. Donaldson, Chardon, Ohio,for many years road inspector for theB. & O. railroad, has patented an impor-tant improvement in sliding doors. By aningenious arrangement ofhanging devices the door iseasily operated, and, combiningstrength and durability, it isimpossible for the door tobuckle, bind or drag and can-not leave the track when onceplaced in position. The ex-terior frame is made of anglemetal, and is divided into pan-els by vertical and horizontalbars. The panels are filled byplates. Attached to the car area series of hangers carryinganti-friction rollers upon whichthe door is suspended by sup-ports, which present minimumTriction surfaces and enable the door to has patented means for heating feed waterfor locomotive boilers. The chief fea-tures of the device are means to dividethe draft in its passage from the smoke. LOCOMOTIVE FEED WATER HEATER. arch of the locomotive and to cause the■draft to pass through smoke chambers atthe sides of the boiler and to return tothe smoke-stack, meanwhile having givenup heat sufficiently to heat the feedwater in the pipes situated within the•chambers. Means are also provided forcollecting cinders at the bottom of thechambers and emptying the same. Mud■drums are also attached to the appara-tus which can be blown out at inter-vals.
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
