. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . -tities of self-hardening steel into cutterlengths. This class of steel gives mostsatisfaction when cut off cold. The ordi-nary shop practice has been to cut thesteel off hot or to break it off on ananvil. The objection to the lattermethod is that the break is liable to bevery irregular, resulting not only in aloss of steel, but also in increased grind-ing, with attendant waste of time andwear of emery wheels. After experi-menting with various methods of doingthis work, the Armstrong Brothers
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . -tities of self-hardening steel into cutterlengths. This class of steel gives mostsatisfaction when cut off cold. The ordi-nary shop practice has been to cut thesteel off hot or to break it off on ananvil. The objection to the lattermethod is that the break is liable to bevery irregular, resulting not only in aloss of steel, but also in increased grind-ing, with attendant waste of time andwear of emery wheels. After experi-menting with various methods of doingthis work, the Armstrong Brothers ToolCompany have developed the machinehere illustrated, which in a slightly dif-ferent form has been in practical use intheir works for about two years. Apatent has been applied for. The cutting is done by a disc of specialgrade tool steel revolving at high attempt to cut soft steel or ordinarycast steel with a disc results in a roughdragging cut, with flaring lips, whichbind the disc to such an extent as toreduce its speed to a point where it isineffective, if it does not actually stop. ARMSTRONG O I I MACHINE. is provided with a length gauge, and isconveniently adjustable for steel of dif-ferent sizes or depth of cut. The cut-ting disc is provided with a neat guard,which can easily be swung back out ofthe way when changing the disc. The grinding disc is made of boilerplate, and is provided with an adjustabletable, so located that the operator willnot interfere with cutting off long barsof steel. Each machine is equipped with coun-ter shaft, one cutting disc, one grindingdisc, one breaking block, one press foremery discs, one dozen emery cloth discsassorted, one pound lubricating greaseand one can special cement for attachingemery cloth to grinding disc. to the sawyers of the world. Upon re-quest this useful little book, which isfully illustrated, will be sent free ofcharge to any sawyer or other person in-terested, by the J. A. Fay & Egan Co.,of 44S West Fr
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
