. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . reduction inthi- top rake ai ■ I is always ac-companied by an increase in the netamount of power consumed The lawconnecting the variations of the two quan-tities appears to be of the nature of astraight line law for all qualities of steelmachined. There are therefore no criticalvalues of the rake angles in regard topower consumption as there arc in regardto durability and cutting power Students at Real strike among the railway men inGreat Britain last September brought outa large num
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . reduction inthi- top rake ai ■ I is always ac-companied by an increase in the netamount of power consumed The lawconnecting the variations of the two quan-tities appears to be of the nature of astraight line law for all qualities of steelmachined. There are therefore no criticalvalues of the rake angles in regard topower consumption as there arc in regardto durability and cutting power Students at Real strike among the railway men inGreat Britain last September brought outa large number of what are usually calledgentlemen of leisure whose services wereeagerly accepted by the railway managers,and no doubt the kid-gloved aristocratshad some effect in hastening the settle-ment of the strike that threatened toparalyze the transportation system of theUnited Kingdom. Probably in emulationof this example all sorts and conditionsof men took to railroad work in therecent strike among certain classes of rail-way men in America. Quite a number ofcollege students showed an eagerness to. Photo by International Film N UNIVERSITY OF PENNSYLVANIA 4 i The color of the turnings formedby a high-speed lathe roughing tool whenworking on steel is not necessarily a trueindex of the condition of maximum cut-ting efficiency. Thus in the case of hardcolor which isd with maximum cutting efficiencyis a pale blue, whilst a mild steel turningwhich is removed under the conditions ofmaximum efficiency is practically un-colored, apart, of course, from the naturalgri y color of the steel. STUDENTS IN RAILWAY YARDS try their hand at railroading, and. apartfrom the merits or demerits of the con-. it cannot be other than beneficialto the students to realize what a realdays work is. Of course, the lessonwould have been more impressive if theexperiment had occurred in the dog dayswith the thermometer about 100 deg. F.,and the foot plates with their sizzlingaugmentation of heat superinduced by
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
