The Norwalk Air Compressor (1888) . discharge valve on theIntake Air Cylinder. The amount of compression which is performed in theIntake Air Cylinder is always uniform for the reason that the pressure pro-duced here is simply the pressure required to compress the air into thesmaller or compressing cylinder. Hence there being a uniform dischargepressure for this cylinder it is a simple matter to adjust a positive movingdischarge valve to open at the exact and proper point of discharge. Thisarrangement has proved to be highly gratifying and we have adopted it forall our Compressors except the ve
The Norwalk Air Compressor (1888) . discharge valve on theIntake Air Cylinder. The amount of compression which is performed in theIntake Air Cylinder is always uniform for the reason that the pressure pro-duced here is simply the pressure required to compress the air into thesmaller or compressing cylinder. Hence there being a uniform dischargepressure for this cylinder it is a simple matter to adjust a positive movingdischarge valve to open at the exact and proper point of discharge. Thisarrangement has proved to be highly gratifying and we have adopted it forall our Compressors except the very smallest. In the cut is also shown, on the inside of the wheel, ratchet notcheswhich are engaged by a pawl when it is desired to move the Compressor byhand. A hand lever is furnished which operates the driving pawl. There isno possibility of the lever or other parts becoming caught in the wheels orrods, as the pawl falls away automatically if the lever is withdrawn and ispushed aside if the Compressor is started by the steam. i8. 10COCO H 0 u 0 •p r >- ? 19 1^ Pattern of 1885. The improvements introduced in this pattern required no alteration in thegeneral features of the machine, but covered many important points in thedetails, where experience showed that changes might be made either for thebetterment of the working of the Compressor or for other advantage to theuser. An automatic Pressure Regulator of new and patented design is repre-sented attached to the steam cylinder. This attachment is shown and de-scribed in detail on pages 38 and 39. New pattern Lubricators are placed onthe air cylinders, having sight feed and fine adjustment. The oil drops atany rate desired, at intervals of seconds or minutes. We also again call atten-tion to the Corliss Suction and Discharge Valves. Their more extensive usestill further demonstrates their great desirability. We therefore continuetheir employment. ^f 20
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectdivisio, bookyear1888
