. American engineer . curve shows the rate of flowat any time during the chart cycle. The integrating deviceconsists of a stationary flow-rate planimeter driven by the chartpaper. The angular position of the planimeter wheel is deter-mined by a cam connected to the shaft of the recording penand moving with this pen. The planimeter dials read in arbi-trary units, which, multiplied by a constant furnished with the 507 RAILWAY AGE GAZETTE, MECHANICAL EDITION. Vol. 87, No. 9. meter, gives the flow in the desired unit. This device is ex-tremely simple and there is practically no danger of its getti
. American engineer . curve shows the rate of flowat any time during the chart cycle. The integrating deviceconsists of a stationary flow-rate planimeter driven by the chartpaper. The angular position of the planimeter wheel is deter-mined by a cam connected to the shaft of the recording penand moving with this pen. The planimeter dials read in arbi-trary units, which, multiplied by a constant furnished with the 507 RAILWAY AGE GAZETTE, MECHANICAL EDITION. Vol. 87, No. 9. meter, gives the flow in the desired unit. This device is ex-tremely simple and there is practically no danger of its gettingout of adjustment. For pipes less than 2 in. in diameter, an orifice tube, whichis a brass pipe tapered internally from both ends and so as toform a restricted opening at the middle of the tube, is providedand must be incorporated in the pipe line. One leg of the U-tube is connected to the orifice tube near its end and the otherleg to its middle point where the greater velocity at the orifice UNITED STATES AIR BRAKE. Float and One of the Magnets of the Flow Meter. will give a reduced pressure in the pipe leading to the meet the requirements of different classes of service andthe various conditions met with, this meter is made in fourdifferent ways—as a recording or curve-drawing instrument;with both indicating scale and recording chart; with recordingchart and integrating dials; and with indicating scale, recordingchart, and integrating dials. It is manufactured by the GeneralElectric Company, Schenectady, N. Y. OSMAN BOILER CHECK In an article in the August issue of the Railway Age Gazette,Mechanical Edition, describing the Osman regrinding and pres-sure equalizing boiler check, it was stated that this device ismanufactured by the Swenson Valve Company, Decorah, is incorrect, as the rights for the manufacture and saleof the valve are controlled by G. H. Osman, who is superintend-ent for that company. Aerial Railway in Colombia.—By permission of the Co
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
