. Railway age gazette . ased Glass column receives the steam connection, thus protecting thereflex surfaces of the glass from erosion when steam is blownthrough the gage. Large plugs seating against copper gas-kets close the top and bottom of the registering reflex glass is held in place by means of a backingpiece bearing against the soft metal casing on the back face ofthe glass. Horizontal and vertical sections through the backingpiece are shown in the engraving. Pressure is exerted againstthe backing piece by a single set screw acting againsta heavy single leaf spring, thus insur
. Railway age gazette . ased Glass column receives the steam connection, thus protecting thereflex surfaces of the glass from erosion when steam is blownthrough the gage. Large plugs seating against copper gas-kets close the top and bottom of the registering reflex glass is held in place by means of a backingpiece bearing against the soft metal casing on the back face ofthe glass. Horizontal and vertical sections through the backingpiece are shown in the engraving. Pressure is exerted againstthe backing piece by a single set screw acting againsta heavy single leaf spring, thus insuring a uniform bearing October, 1914 RAILWAY AGE GAZETTE, MECHANICAL EDITION S43 pressure at all points between the backing piece and theglass, as well as between the glass and the frame. The jointbetween the glass and the frame is sealed by the soft metalcasing which forms a gasket unaffected by steam or hotwater. The joint between the backing piece and the glassis sealed in the same manner and all portions of the glass. Column and SfeamBlotv Off Passa^e^yau Sections Through Registering Column of Pressurioi<d Water Glass except the reflex surfaces are entirely free from contact withsteam or water. It is claimed that by this constructionshould the glass be cracked or broken into several piecesthe external pressure against the metal casing around theedge of the glass locks the pieces together so that it is im-possible for them to be blown out of the frame. Glasses sages through the backing piece shown in the longitudinalsection. The boiler fittings are designed for uniform strengththroughout. All joints are sealed by means of copper cocks are used, thus providing straight passages whichare easily kept clean. Owing to the fact that pressure onthe metal casing holds the glass in position when it is broken,it has not been considered necessary to restrict the size ofpassages to meet the requirements of safety. In order toreduce to a minimum the probability of false in
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1913
