. American engineer and railroad journal . d set for grind-ing bevel cutters. In Fig. 6 is shown a large inserted tooth-face mill in the sliding head that is probably the most difficultcutter to handle on any grinder without using special sliding head arrangement on this machine makes this avery simple operation. This machine has a capacity for all styles of cutters up to 14ins. diameter and 14 ins. long. It is designed distinctivelyas a cutter and reamer grinder to fill the long felt want for amachine capable of grinding heavy cutters of large diameterand long face, which are-use
. American engineer and railroad journal . d set for grind-ing bevel cutters. In Fig. 6 is shown a large inserted tooth-face mill in the sliding head that is probably the most difficultcutter to handle on any grinder without using special sliding head arrangement on this machine makes this avery simple operation. This machine has a capacity for all styles of cutters up to 14ins. diameter and 14 ins. long. It is designed distinctivelyas a cutter and reamer grinder to fill the long felt want for amachine capable of grinding heavy cutters of large diameterand long face, which are-used on the large column and planertype milling machines, also the large diameter inserted toothcutters. The machine will take care of all styles and sizes ofcutters, including plain, straddle, form and end mills, beingmade especially stiff and heavy to eliminate vibration whichfrequently occurs in most of the lighter grinders. The machine is provided with two columns, one of whichhas a knee, with saddle and table, which has 6 ins. of verti-. FIG. 1.—BECKER-RRAINARD CUTTER AND REAMER GRINDER. FIG. 2.—SHOWING THE MACHINE ARRANGED EOR MOTOR DRIVING. bar inserted in place of the head stock center and tail stock re-moved. Cutters are ground by sliding them on the bar in frontof the wheel, which insures a cutter ground straight and truewith the hole. On the right hand side is a novel arrangementfor grinding the end mills, or the side teeth of straddle millsand inserted tooth cutters. This sliding head can be swivelledfor grinding bevel or dovetail mills, and is provided with aplunger finger, which is always set on the center. The objectin this arrangement is to do away with many of the devicesordinarily used for this work, and it is also unnecessary to useany other than a 7-inch emery wheel, as shown. In Fig. 2 the machine appears as arranged with motor driv-ing. This is a view of the model which is on exhibit at theBecker-Brainard Milling Machine Companys space No. 13, Ma-chinery
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
