Electric heating – Metal heating – Rail bond
Patent
1978-08-28
1980-07-29
Goldberg, E. A.
Electric heating
Metal heating
Rail bond
219 55, 219101, B23K 1102
Patent
active
042152607
ABSTRACT:
An apparatus for welding two profile or section rods by means of electrical resistance welding, especially an apparatus for welding two rails. There is provided for each of the profile or section rods a clamping device having contact electrodes for infeeding the welding current. Both of the clamping devices are displaceable relative to one another in the direction of the profile or section rods, in order to exert a pressure force at the weld joint. To prevent distortion or displacement of the end regions of the profile sections directly neighboring the weld joint, a centering device is arranged between both of the clamping devices. This centering device can be brought into engagement with the end section of both the one as well as the other profile rod and fixedly retains such end sections. The centering device can comprise two similarly constructed pivotal arms rotatable about a common centering shaft. The pivotal arms each having a centering mouth at their free end, the form of which is essentially matched to the profile or contour of the profile or section rods which are to be welded together.
REFERENCES:
patent: 3541295 (1970-01-01), McGuire
patent: 3982091 (1976-09-01), Zollinger
Goldberg E. A.
H. A. Schlatter AG
Kleeman Werner W.
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