. Railway mechanical engineer . - convenient and practical form of face shield hasbeen developed at the Columbus shops. It is made largelyof fiber which is light and a non-conductor of heat and elec- annealed iron wire and for ovcrliead work steel wire with ahigh melting ])oint. A CROSSHEAD FACING TOOL The inner surfaces on the sides of are difficultto machine in a .«lotter. Nevertheless on account of the diffi-culty of reaching these ])oints with an ordinary lathe toolthe surfaces are usuallv slotted out. The illustration below. Tool Which Cuts the Time for Machining Crossheads sh
. Railway mechanical engineer . - convenient and practical form of face shield hasbeen developed at the Columbus shops. It is made largelyof fiber which is light and a non-conductor of heat and elec- annealed iron wire and for ovcrliead work steel wire with ahigh melting ])oint. A CROSSHEAD FACING TOOL The inner surfaces on the sides of are difficultto machine in a .«lotter. Nevertheless on account of the diffi-culty of reaching these ])oints with an ordinary lathe toolthe surfaces are usuallv slotted out. The illustration below. Tool Which Cuts the Time for Machining Crossheads shows a tool used in the Bloomington shops of the Chicago& Alton which makes it possible to finish both of the insidesurfaces on crossheads at one setting. The body of the tool is designed to pass through the cross- k- 60 , .20 -1018 ZjV- Q 41 _j^ isiy i^__J^_ ^ ^0-__j^_eo_
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
