. Railway mechanical engineer . Cutter Heads, Blades and Gages foiGages for Testing Adjusting the Heads;Turned Bolts where the machinist reams threaded, and placed at tlie engirthe holes and drives them in. The group of machine tools devoted to the linishing of boltsis made up of one 3-in pointer, a 4-spindIc bolt turner, a boltalterer, one triple head bolt cutler, one 1-l-in. and one I()-in. en-. 1 liis has lour heads and is shown in one of the cutter heads are located in the base of the andthe bolts are driven into them by revolving spindles. The cut-ter heads ar
. Railway mechanical engineer . Cutter Heads, Blades and Gages foiGages for Testing Adjusting the Heads;Turned Bolts where the machinist reams threaded, and placed at tlie engirthe holes and drives them in. The group of machine tools devoted to the linishing of boltsis made up of one 3-in pointer, a 4-spindIc bolt turner, a boltalterer, one triple head bolt cutler, one 1-l-in. and one I()-in. en-. 1 liis has lour heads and is shown in one of the cutter heads are located in the base of the andthe bolts are driven into them by revolving spindles. The cut-ter heads are fitted with removable blades which are adjustedfor diameter and taper by means of plug gages. A set of hollow-gages are also provided by which the turned bolts may be testedboth as to the correctness of size and taper. The bolts are fin- Four-Head Bolt Turning Macliine i,ine lathe, two center drills, and two nut facers. One of theillustrations shows a pile of rough bolts as received from thebolt header. They are first pointed in order that they willproperly enter the cutter head of the bolt turning machine. Muffactr Bot CuHf Lu a C=i !ZZ> Nuf Facer -* D spiral Onnder Bo!i Ali-erer \ CZ] Orinding Group of Machine Tools for Finishing Engine Bolts ished with one cut, no roughing cut being the aver-age time required being less than one and one-half minutes foreach bolt. When a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
