. Railway mechanical engineer . d, an operation cheaply performed by planinga number of liners at the same time. They are held at theproper angle in a planer chuck using suitable beveled blocksand feeding the tool across all the liners at once. To assist inholding the liners six holes are punched for welding, the driving boxes are planed to the standardwidths between shoe and wedge faces called for by the blueprints. Washout plugs are quickly and accurately turned and B § 1 B^^y fc| &Bk V^ -• vm 5 1 v eg trx*» ; t| ^H%< **W*^^ SSJCi^l - * Fig. 2—Heavy Cuts Are Taken With
. Railway mechanical engineer . d, an operation cheaply performed by planinga number of liners at the same time. They are held at theproper angle in a planer chuck using suitable beveled blocksand feeding the tool across all the liners at once. To assist inholding the liners six holes are punched for welding, the driving boxes are planed to the standardwidths between shoe and wedge faces called for by the blueprints. Washout plugs are quickly and accurately turned and B § 1 B^^y fc| &Bk V^ -• vm 5 1 v eg trx*» ; t| ^H%< **W*^^ SSJCi^l - * Fig. 2—Heavy Cuts Are Taken With a Piloted Boring Bar cored out to a bell shape to reduce the weight and permitquick center punching for the tail stock center. The threading tool is a hobbed chaser (as shown on topof the tool post) held in a block fitted to take the place of theregular tool post. Grinding this tool at an angle furnishesa turning edge to precede the threading chaser. By meansof an adjustable stop, the carriage travel can be regulated,. Fig. 3—Method of Machining Washout Plugs permitting the taking of several cuts and yet maintaining thesize where a number are made of the same size. The taperis obtained by setting over the tail stock, as this method hasbeen found to give the best results. The strips, shown at anangle on the side of the tool block, have been provided tohold the hinged guard, protecting the workman from flying 179 180 RAILWAY MECHANICAL ENGINEER Vol. 95, Xo. 3 brass chips. The average production, working on a quantityshop order, is 100 plugs in eight hours. An interesting method of solving a difficult shop problem
Size: 1769px × 1412px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
