Identifier: locomotiveappli00kirk (find matches)
Title: Locomotive appliances
Year: 1901 (1900s)
Authors: Kirkman, Marshall M. (Marshall Monroe), 1842-1921
Subjects: Locomotives
Publisher: New York and Chicago, The World railway publishing company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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the adjoining build-ing. The volume and temperature of the air is imme-diately under the control of a single individual, whilelocal requirements can be met by the adjustment ofdampers, as shown and described. The exhauststeam from the fan engine is utilized in the heater, sothat the cost of operating the fan is greatly reduced.Live steam is supplied to the remainder of the heater.It is, however, customary in ordinary mill practicewhere there is ample quantity of exhaust steam toutilize it in the heater, as can always be readily donewithout producing back pressure on the main engine. SMOKE JACKS FOR ENGINE HOUSES. Although of comparatively recent adoption, thereare but few engine houses of any importance not nowequipped with some form of drop jack; that is, withtelescope pipe which permits its being lowered tocompletely cover the locomotive stack. If properlyconstructed, such a jack not only prevents the escapeof all smoke and gases into the engine house and LOCOMOTIVE APPLIANCES. 433
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434 LOCOMOTIVE APPLIANCES. locomotive cab, but also increases the natural draftand prevents creosote or drippings from falling on thefront end and headlight. Proper inspection and repair work cannot be accom-plished on locomotives where the engine house is sofull of smoke and noxious gases, as was often the casewith the old form of stationary non-dropping smokejacks. The smoke jack should also be provided with adamper, so that the draft may be shut off when anengine is without fire, for a strong draft at such timesproduces a sudden cooling of the flues, flue sheet andfire-box, and often causes them to leak. The accompanying engraving shows one design oftelescoping smoke jack. It will be seen that the telescope portion is counter-balanced by suitable weights hung near the wall.The damper is located just above the ball-bearinghood, which fits tightly into the locomotive stack.The smoke jack here shown has a swinging joint, sothat no breakage could occur by moving the enginefrom under it

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