. The street railway review . at any moment there is occasion totake up any wear on the edges of the plates in contact with thejournal. The cylinder never has to be removed from the planer,and there is no occasion for re-babbitting. The above companys No. 156 new cabinet smoothing planer con-tains this excellent feature, and a new patent solid or sectional feedroll, a table moving on inclines operated by two parallel screwsmounted on ball bearings, all run on shafts insteads of studs, andchip breakers w-hich rise with the circle of the knives. June 15, 1905.; STREET RAILWAY REVIEW. 385 A Devic
. The street railway review . at any moment there is occasion totake up any wear on the edges of the plates in contact with thejournal. The cylinder never has to be removed from the planer,and there is no occasion for re-babbitting. The above companys No. 156 new cabinet smoothing planer con-tains this excellent feature, and a new patent solid or sectional feedroll, a table moving on inclines operated by two parallel screwsmounted on ball bearings, all run on shafts insteads of studs, andchip breakers w-hich rise with the circle of the knives. June 15, 1905.; STREET RAILWAY REVIEW. 385 A Device for Measuring the Deflection ofTrack Rails. IIV 1)11. ALFRED GRADENWITZ. Ilic nuiiiy close invi-stigatioiis which arc nnw beiiiK made. dI ihcrapidity of wear and llic relative stability of track work call forspecial measuring devices of which the accompanyinR illustrationdepicts a useful form. The essential parts of this device, other than the main framework nr f, are the inlcrfninurleil llr^t and second class. DKVICE FOR MEASURINi; TRACK , DEFLECTION. levers A and F, respectively, and the scale G with its telltalemarker II. One end of the lever A is fitted with a small rollerwhich is designed to rest snugly against the underside of the headof the rail whose deflection it is wished to measure. The end ofthis lever on the opposite side of the fulcrum from the roller isin contact with a vertical strut which conveys any movement inlever A to the underside of lever F at a point close to its ful-crum. It is seen that by this arrangement any slight verticalmovement of the contact roller at the end of lever A is con-veyed to lever F, and by reason of the varied lengths of the leverarms, such movement is greatly magnified and proportionate de-flections of the rail arc thus read on the enlarged scale G which isbuilt as a portion of the arc of a circle whose radius is the leverarm F. When such deflections are made and the pointer moved upwardon the scale the telltale m
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
