E - Fixed Constructions – 01 – B
Patent
E - Fixed Constructions
01
B
327/57
E01B 29/46 (2006.01) B23K 11/00 (2006.01) B23K 11/04 (2006.01)
Patent
CA 1314945
ELECTRIC FLASH-BUTT WELDING MACHINE AND METHOD OF PROVIDING A WELDED JOINT BETWEEN ADJACENT ENDS OF RAIL SECTIONS Abstract of the Disclosure A mobile electric flash-butt welding machine comprises machine frame, undercarriages supporting the machine frame on a railroad track, and a drive for propelling the machine frame along the track. The machine frame carries a hydraulic fluid supply pump, an electric current generator, a motor for operating the pump and the generator, a longitudinally, transversely and vertically adjustable electric flash-butt welding head for selectively welding together the adjacent rail section ends of a respective one of the track rails, the welding head comprising two welding head halves movable towards and away from each other in a direction of the rail, hydraulic cylinders for moving the two welding head halves in said direction, a pair of clamping and welding jaws on each welding head half, and a hydraulic clamping cylinder connecting the jaws of each pair. The machine frame also carries a welding control connecting the pump and generator to the hydraulic cylinders and jaws respectively for hydraulically and electrically operating the clamping and welding jaws, and an apparatus for tensioning or longitudinally sliding the rail, the apparatus being associated with the welding head for encompassing the welding head in a horizontal plane passing through the rail and comprising two pairs of rail clamping jaws for engaging adjacent rail section ends immediately ahead of, and behind, the welding head, and a hydraulic cylinder-piston arrangement extending in the direction of the rail and comprising respective operating cylinders connecting the pairs of rail clamping jaws for operation thereof.
589363
Gruber Leopold Rudolf
Oellerer Friedrich
Theurer Josef
Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.b.h.
Riches Mckenzie & Herbert Llp
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