. Science of railways . Fig. Air and Steam Couj>ier. The construction, manner of attaching and oper-ation of this device may be described as follows: Theapparatus is interchangeable, there being no rightsand lefts. The coupling head consists of a castingwith openings on its face to receive the registeringgaskets, and a coupling spring riveted thereto, asshown on the plan view (Fig. 1), On the elevation 557 558 LOCOMOTIVE APPLIANCES. view (Fig. 2) is shown a cast-steel bracket rivetedto the under side of the drawbar, to which a slot-ted hanger, in which the coupling spring rests,
. Science of railways . Fig. Air and Steam Couj>ier. The construction, manner of attaching and oper-ation of this device may be described as follows: Theapparatus is interchangeable, there being no rightsand lefts. The coupling head consists of a castingwith openings on its face to receive the registeringgaskets, and a coupling spring riveted thereto, asshown on the plan view (Fig. 1), On the elevation 557 558 LOCOMOTIVE APPLIANCES. view (Fig. 2) is shown a cast-steel bracket rivetedto the under side of the drawbar, to which a slot-ted hanger, in which the coupling spring rests, anda chain arm to support the coupling head, arebolted. The gaskets are so placed in the head thatneither is touched by tlie opposite one until thecou]3ling is made. This protection is effected bya tongue ^nd groove, on which tongue the facerides until the gaskets are in position to register,when the tongue drops into the Elevation Fig. Air and Steam Coupler. The outer end of the coupling head, having ^^ Vand wedge-shape guides, is directed both verti-cally and horizontally by the outwardly bentspring on the opposing members. This coupling-spring performs the double function of guide andclamp to hold the head firmly together whencoupled. As will be seen on the elevation views, the headsare tapped to receive the air pipes to which con-nection is made to the train and signal pipes by ashort hose. The steam attachment is so arraneed that it can LOCOMOTIVE APPLIANCES. 559 be readily removed or attaclied without affectingthe air connections. An automatic drip at thelowest point of the steam attachment provides forall condensation. As will be seen on the plan views, the slottedhanger is provided with a spring buffer which pos-itively insures the air coupling under all condi-tions where the car couplers mil operate, andwhich maintains the coupling point of the aircoupler in advance of the car coup
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