The process is generally used in the reclamation of broken engine frames, damaged cylinders, broken spokes in driver wheels, cracked valve chamber bushings, broken steam and exhaust pipes and air pump heads; in mending cracks, cutting out and welding patches on side sheets of fire boxes, flue sheets and door collars; in welding front end doors when damaged, engine truck frames and cradles, frame braces and brackets, tender bolsters, guides, and pedestals. The process is used to some extent also in building up worn diamond crossings and frogs. Both cutting and welding are used in the upkeep and repair of steel cars.
At the scrap yard the welder cuts up old boilers and other scrap for salvaging.
PLAN No. 1141. ELECTRIC RAILWAYS
Applications of the process by electric railways are similar to those by steam railways. There are, however, more opportunities for doing welding at the table. Of such a nature are restoring of armature bearing housings and frame heads, worn axle seats for motors and axle caps, journal boxes, pinion seats and keyways, brush holders, trolley bases, and third-rail shoe castings. Heavy broken parts such as truck frames, drawheads, brake hangers and body bolsters are repaired. To some extent the process is used also in bonding rails and in welding steel trolleys. Most of the work is handled in the shop, where, however, electric welding is coming into more general use, owing to the availability and economy of electric power.
PLAN No. 1142. SHIPBUILDING
Extensive use is made of the process in cutting all kinds and shapes of steel plate. Hydrogen is very generally used, instead of acetylene, and welding machines have been introduced. Welding proper is more generally applied in reclamation work, damaged or broken parts of the ship and of its machinery and propellers being often welded by this process.
Electric arc welding is fast coming to the front in this field, except for cutting where the gas process can not be replaced.
PLAN No. 1143. AUTOMOBILE INDUSTRY
Oxy-acetylene welding of automobile parts is not in general very difficult, but as in all other welding mastery of fundamentals is here also essential to success. The work is varied in character, including cast iron, aluminum, steel, and wrought iron welding.
The process is extensively used in the repair of automobiles, and to a lesser degree in their manufacture. Both the industry itself and the repair work provide excellent fields for the prospective welder.