B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
B23K 11/00 (2006.01) B23K 11/04 (2006.01) B23K 11/36 (2006.01) B23K 37/02 (2006.01) B23K 37/04 (2006.01) E01B 11/50 (2006.01)
Patent
CA 2418677
A welding unit (1) for executing mobile electric-resistance welding operations on a track consists of a control device (7) and two unit halves (5,6) movable in the longitudinal direction of the rails by means of compression cylinders (9), each unit half comprising a pair of clamping jaws (10) movable towards one another in a pivoting motion (12) by means of a clamping cylinder (13). The clamping jaws are movable towards one another with the aid of the clamping cylinder (13) from a mounting position, suitable for the passage of a rail head (15), into a welding position (16) in which the clamping jaws (10), for executing the welding operation, abut against rail webs (17) of both rails (2) to be welded. A feeler device (18) is provided for detecting the correct welding position (16) of the clamping jaws (10), as defined by the end of the pivoting motion (12) and application of the clamping jaws (10) to the rail webs (17), and is designed for emitting a control signal required for continued execution of the welding process.
Gruber Leopold
Theurer Josef
Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.b.h.
Riches Mckenzie & Herbert Llp
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