Method and device for the aluminothermic welding of long workpieces
DE932891C
Grinding device for processing grooved and vignole rails
DE848658C
Process to keep the rails at a desired distance from one another during rail butt welding
DE866298C
Arrangement for guiding the automatic welding machine during the automatic build-up welding, especially of flat grooved rails, frogs and crossing systems
DE843342C
Method to avoid web cracks when welding rails with perforated ends
DE829029C
Special device for automatic build-up welding on worn tram rails, especially curved rails
DE844628C
Converter aggregate for electric rail surfacing
DE829028C
Grooved insert for the rail overlay welding
DE923906C
Carburetor for pressurized liquid fuels
DE923904C
Carburetor for pressurized liquid fuels
DE806857C
Achieving a fine structure in the weld zone of workpieces welded using the Thermit method
DE862704C
Procedure for preheating of workpieces to be welded aluminothermally
