. American engineer and railroad journal . ication of the air cylinders of locomotive air pumps the Detroil I ■ Company lias designed a I I > ti chment which gives the engineer complete and convenient control of the lubrication ofhis pump. It consists of three parts: first, the emergency valve,which takes the place of the plug in the bottom of a Detroitlubricator. Next comes the sight feed fitting, which is equippedwith regular bulls-eye glasses and ran he located at any con-venient point in the boiler head within reach of the third fitting is a check valve connection, which ta
. American engineer and railroad journal . ication of the air cylinders of locomotive air pumps the Detroil I ■ Company lias designed a I I > ti chment which gives the engineer complete and convenient control of the lubrication ofhis pump. It consists of three parts: first, the emergency valve,which takes the place of the plug in the bottom of a Detroitlubricator. Next comes the sight feed fitting, which is equippedwith regular bulls-eye glasses and ran he located at any con-venient point in the boiler head within reach of the third fitting is a check valve connection, which takes theplace of the present oil cup on the air cylinder and is providedwith a ball check seating upwards, and prevents the compressedair from entering the oil delivery pipe. The illustration showsthe arrangement and connections for these fittings. The location of the sight feed fitting should be such as to givea gradual incline to the pipe leading to the check valve, so thatthe oil can flow by gravity to the pitnip. There must, however,. r^r^u be a trap between the lubricator and sight feed fitting to preventthe water from entering the supply pipe after all the oil has beenfed from the reservoir. To provide for this the oil supply pipeis extended upward from the emergency valve to about the sameheight as the upper part of the oil reservoir. Provision is made for a double sight feed fitting for use withcompound or duplex pumps. The makers of this device do notadvise a constant feed of oil to the cylinders, but recommendthat not more than ten drops of oil be fed at any one time andthese at intervals, according to the judgment of the engineer. 900,000 Patents.—The nine hundred thousandth patent fromthe United States Patent Office was issued September 29. Itwas granted too Charles D. Seeberger, of Yonkers, N. Y., andrefers to an improvement on traveling stairs, such as are usedin hotels and other large buildings. Mr. Moore estimates thatthe one millionth patent will be reached
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
