. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ^^^^-^■^^ - z u•J o m ^ u I L) s zuua:uzu SUPPLY. FIG. 6. chamber for any given brake pipe re-duction that would be developed in abrake cylinder, having the proper , for a like reduction. .\s the pressure in chamber g is al- io INDEPENDENT BRAKE VALVETO AUTOMATIC BRAKE VALVE. cylinder pressure. In emergency, applica-tions the valves and pistons take the posi-tion shown in Fig. 5. Emergency. autcHmatic air. Equalizing piston 26 moves to the ex- 220 RAILWAY AND LOCOMOTIVE .ENGIN
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ^^^^-^■^^ - z u•J o m ^ u I L) s zuua:uzu SUPPLY. FIG. 6. chamber for any given brake pipe re-duction that would be developed in abrake cylinder, having the proper , for a like reduction. .\s the pressure in chamber g is al- io INDEPENDENT BRAKE VALVETO AUTOMATIC BRAKE VALVE. cylinder pressure. In emergency, applica-tions the valves and pistons take the posi-tion shown in Fig. 5. Emergency. autcHmatic air. Equalizing piston 26 moves to the ex- 220 RAILWAY AND LOCOMOTIVE .ENGINEERING May, 1906. treme rigiu, equalizing slide valve 31 un-covers port h entirely, so that the ap-plication and the pressure chambers willequalize quickly, main piston 10 and sup-ply valve 5 will move instantly to theright, and the brakes will apply with a The equalizing piston docs not op-erate in independent brake applica-tions. The position of the main pistonand of the supply valve in an independentapplication is shown in Fig. 8. and theirpositions in independent release and in. ^^^^^^^N \\V\\VV\\\\\\\\v\\\\-v c - z u■J o m * u Iu > < m u TO INDEPENDENT BHAKE VALVETDAUTOMATIC BRAKE VALVE. force about 20 per cent, greater than infull service application. This increased braking force in emer-gencies is obtained, as already stated,by connecting the brake value equaliz-ing reservoir with the application cham-ber, fhus increasing the pressure in thelatter about 20 per cent. When full emergency brakecylinder pressure is obtained,main piston 10 and supply valve5 move back to the lap posi-tion, as showri in Fig. 6,Emergency lap, automatic air. If the brakes are releasedwith the independent brakevalve, after being applied inservice ;. ^ inc automaticbrake valve, the ■ valves andpistons take the positionshown in Fig. 7. That is, theequalizing piston and slide valvereturn to the lap position, an3main piston 10 and supply valve5 return to release position, theapplicati
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
