. Electric railway journal . UGH RAIL AND ABUTTING ENDS OF ARM RAILS CUT READY FOR WELDING. INTERSECTION WELD COMPLETE torch, a thermit welding outfit and an Atlas trackgrinder. After making a few welds and finding the operationa success, we built a concrete bed for doing such proved to be very convenient and insured themaking of curve crosses true to angle and 1 shows the welding bed. As we use thermitfor all combination joints we do all such work on thissame bed. In fabricating a curve cross, we first make a templateto correspond with the ball of the rail of the desire
. Electric railway journal . UGH RAIL AND ABUTTING ENDS OF ARM RAILS CUT READY FOR WELDING. INTERSECTION WELD COMPLETE torch, a thermit welding outfit and an Atlas trackgrinder. After making a few welds and finding the operationa success, we built a concrete bed for doing such proved to be very convenient and insured themaking of curve crosses true to angle and 1 shows the welding bed. As we use thermitfor all combination joints we do all such work on thissame bed. In fabricating a curve cross, we first make a templateto correspond with the ball of the rail of the desiredcross. The edges of the template that correspond withthe gage line are painted red. In laying out the tem-plate we take as the through rail the one having themaximum traffic. This is bent to the proper curvatureand bolted to the welding bed with the point of inter-section over the pit. The rail for the intersecting armsis first bent accurately to the proper radius and thenthe pieces are cut of ample length to make the wax mold must be extended under the bearing parts ofthe intersecting rails to provide support for the load,and the weld must extend under the acute-angled pointsso as to support them. The wax when worked slightlywarm is not at all difficult to handle or to work tothe required shape. 146 Electric Railway Journal Vol. 53, No. 3 We have found a small trowel and a farriers knifeto be the best tools for working the wax pattern intofinal shape. By knowing how much the wax weighsbefore starting and how much it weighs after thepattern is finished, it is easy to determine just howmuch thermit is required. The flask is made up of four pieces of sheet ironcut at the ends to the shape of the rail. This flaskmust extend down 4 in. below the base of the railand must permit 4 in. of sand to intervene betweenthe flask and the weld. The sand used must be silicasand with sufficient fire clay added to make it tampto a solid mass. It is not necessary to give any detailsof the
Size: 1407px × 1776px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
