. Science of railways . as to the number of drops per minuteat which he should set the feeds, or through not starting thelubricator in sufficient time before leaving the terminal. Thispractice will result in distortion of the valve motion through dryvalves, waste of fuel, loss of time and speed and the necessity ofracing the feeds in order to get the valves back into properworking condition. The use of the oil valve, the regulating valves having beenonce adjusted, makes the starting of this lubricator an instan-taneous operation and insures the correct amount of operator knows
. Science of railways . as to the number of drops per minuteat which he should set the feeds, or through not starting thelubricator in sufficient time before leaving the terminal. Thispractice will result in distortion of the valve motion through dryvalves, waste of fuel, loss of time and speed and the necessity ofracing the feeds in order to get the valves back into properworking condition. The use of the oil valve, the regulating valves having beenonce adjusted, makes the starting of this lubricator an instan-taneous operation and insures the correct amount of operator knows that as soon as the lubricator has reached itsproper temperature, the oil will feed at the rate required. The adjustment of the lubricator feeds in night service or■where the device is inconveniently located is always a matter ofmore or less difficulty. As the oil valve does away with the open-ing and closing of the regulating valves and the necessity forobserving the sight feed features when starting and stopping the. Fig. 13. 448 LOCOMOTIVE APPLIANCES. device, it becomes a great convenience to the operator, as underall conditions, night or day, he can by the sense of touch alone,place the lever handle of this valve in any one of its threepositions shown in Fig. 13. The differences between the No. 22 lubricator and the No. 21are as follows: An oil valve has been introduced to perform the functions ofthe feed regulating valves in starting, stopping or throttling thedevice, except that it does not control the amount of oil deliveredfrom each nozzle until the Regulating valves have been set. Thisvalve has a lever handle and index plate on which are shown threepositions: * Closed, Pump, and * All open. In the*Closed position of the valve, the valve handle is vertical andpointing upward. All feeds are shut off. In the Pumpposition, the handle is horizontal and pointing to the right, and theair pump feed alone is working. In the All open position,the handle is vertical, pointing d
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