. Science of railways . arrangement of the water supplypipe and the pressure of the steam. It is constructed in such a way that the tubesand other parts can be easily taken out for cleaningor repairs. By unscrewing the cap at the lowerend the combining and delivery tubes may easilybe removed. The overflow valve is closed by aquick-acting cam, requiring only a one-half turnof the extension rod, or by a screw stem, if desired. Operation.—Open the overflow, water and steamvalves. Regulate for quantity with water use as a heater, or when the water supply isabove 106 degrees, close the ove
. Science of railways . arrangement of the water supplypipe and the pressure of the steam. It is constructed in such a way that the tubesand other parts can be easily taken out for cleaningor repairs. By unscrewing the cap at the lowerend the combining and delivery tubes may easilybe removed. The overflow valve is closed by aquick-acting cam, requiring only a one-half turnof the extension rod, or by a screw stem, if desired. Operation.—Open the overflow, water and steamvalves. Regulate for quantity with water use as a heater, or when the water supply isabove 106 degrees, close the overflow valve. Asthe temperature rises toward the limit the capacityis reduced. NATHAN SIMPLEX INJECTOR, The Simplex injector is termed an automatic in-strument and will restart, picking up the waterafter interruption from any cause such as watersurging in the tank when supply is low. It is alsoself-regulating, controlling the water without wasteat the overflow with a varying pressure of steam LOCOMOTIVE APPLIANCES. 251. 109 Screw Formof Ove flow Valve Fig. Class K Self-Acting Injector. Non-Lifting.— (Sectional View). LIST OP PARTS. 2k. Combining Steam Delivery Ring for Copper Water Ring for Copper Steam Ring for Copper 3a. Delivery Union for Iron Water Union for Iron Steam Union for Iron 4a. Delivery Coupling 4b. Water Coupling Steam Coupling Inlet Valve (old style).8 7. Delivery Tube. 88. Body. 89. Cap at end of Body. 90. Waste Pipe (Cam Pat- tern). i. 98. , Cam to Close Waste for No. through No. 9 0 and No. 9 opposite No. 9 over No. 9 8 and No. Water for No. 9 for No. for No. Pipe (Screw).Waste over No. Valve. 232k. Cap over 231. 256 LOCOMOTIVE APPLIANCES. from 200 pounds down to 50
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