. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . 4-nt 1 diameter and 12 inches long,and will turn out about 150 6-inch bolts This form of bolt can l)C pro-duced in larger quantities in ,1 given timeby other known methods, but this methodhas a distinction of reducing the torsionalMr:iin mi ilu- internal (ibirs nl the bar toa minnumn. We also find that more of these boltsare in perfect repose after being screwedin position in the boiler, than is the casewith other forms of bolts which we haveused at this point, for the reason that a
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . 4-nt 1 diameter and 12 inches long,and will turn out about 150 6-inch bolts This form of bolt can l)C pro-duced in larger quantities in ,1 given timeby other known methods, but this methodhas a distinction of reducing the torsionalMr:iin mi ilu- internal (ibirs nl the bar toa minnumn. We also find that more of these boltsare in perfect repose after being screwedin position in the boiler, than is the casewith other forms of bolts which we haveused at this point, for the reason that an t*- * *^^-J[ —^ T>=, 1 r It l^^ %^Vw^^HlWQHIi^HBHR ^«B s ■iiMlBi hi mi < *! Wi L jj^S 19b^^^^^^SS^ IHI 19 ■1 1 H H FRONT OK HPRIGHT,S AUTOMATIC STAYBOLT BACK OF lilRIGHTS AUTOMATIC STAYBOLT CUTTER. in 10 hours, including all regrinding andsetting of cutting tools. The form of reduction, midway be-tween the two threaded ends of the bolts,can be varied to suit different require-ments. The main feature of the machine,aside from the automatic feature, is theaccuracy with which the lead in thethread is maintained, it not exceedingmore than 3 to 5-10,000 error in 12 inches,after the machines had been in serviceabout two years. excessive amount of leverage cannot beapplied when screwing the bolt in. Incase the thread is crossed when bolt en-tered the inner sheet, which we find wasvery frequently the case with othertypes of bolts. Eight of these machines have been com-pleted at the Juniata shops and others arenow in course of construction. They arethe invention of Mr. A. W. Epright,Scale Inspector of the Pennsylvania at Altoona, Pa. Fast Time on the Pennsylvania. One day last month the St. Louis ex-press ran from Harrisburg to Morrisvill
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
