. Railway mechanical engineer . duced as much as possible by mounting the spindle of thecam upon anti-friction rollers. Accuracy is also promoted bythe use of a large, powerful float, and where an enclosed weirchamber is employed, and the float stem must pass through apacking gland, the latter should be of the self-aligning type. The pen carriage is provided with large rollers or wheels,which rest upon horizontal ways, so that the cam follower whichis attached to the pen carriage moves diametrically to the camdisc. The construction is such that the cam follower cannotbe accidentally displaced
. Railway mechanical engineer . duced as much as possible by mounting the spindle of thecam upon anti-friction rollers. Accuracy is also promoted bythe use of a large, powerful float, and where an enclosed weirchamber is employed, and the float stem must pass through apacking gland, the latter should be of the self-aligning type. The pen carriage is provided with large rollers or wheels,which rest upon horizontal ways, so that the cam follower whichis attached to the pen carriage moves diametrically to the camdisc. The construction is such that the cam follower cannotbe accidentally displaced from the cam slot. The chart beingdriven uniformly by a clock, the pen not only records the rate offlow at each instant, but the area luider the pen trace is propor-tional to the total flow for any elai)sed period. Many users,however, desire to obtain the total flow directly, without the useof a planimeter, and for this purpose an integrating attachmenthas been added. Only one clock is employed, a powerful, weight-operated pen-. dulum movement, making 80 beats per minute, as against the 240or 300 usual with hair-spring escapements. This flow recorder, while originally designed for use with V-notch weirs, may be used with rectangular weirs or submergedorifices. It is regularly supplied in connection with the Coch-rane V-notch meters and metering heaters, manufactured bythe Harrison Safety Boiler Works, Philadelphia, Pa. The Chicago & Alton has increased the working time at itsshops at Bloomington. 111., from eight to nine hours a day. On July II. , the Grand Trunk Pacific bad completed theinstallation of oil-burning locomotives on the mountain sectionsof its line and they were operated for the first time in passengerservice. Oil is being used for fuel over 719 miles of mainline, from Jasper to Prince Rupert, B. C. The railway department of the American Federation of Laborhas issued a notice officially calling off the strike of the me-chanical department unions which was dec
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
