|
DE890013C
|
|
Elbows, especially for large pipelines, and processes for their manufacture
|
|
DE693851C
|
|
Process for increasing the durability of ribbed metallurgical furnaces, in particular Siemens-Martin furnaces
|
|
DE692432C
|
|
Core for the production of cast hollow bodies
|
|
DE669825C
|
|
Core for the production of cast hollow bodies
|
|
DE663195C
|
|
Coke gas-fired Siemens-Martin furnace
|
|
DE534388C
|
|
Device for corrugating square tubes for partial chamber boilers
|
|
DE557604C
|
|
Process for the electric butt welding of pipes in which the weld seam is enclosed by bodies that prevent burrs
|
|
DE486761C
|
|
Bump bench for the production of seamless tubes or the like with movable guide bodies for the mandrel
|
|
DE509040C
|
|
Tube pulling bench (tube pushing bench) with guide bodies designed as a pendulum for the mandrel and the mandrel shaft
|
|
DE485892C
|
|
Pipe drawing bench
|
|
DE599790C
|
|
Hot drawing bench (hot drawing bench) plant
|
|
DE481590C
|
|
Process for welding longitudinal seams, in particular pipes, using water gas
|
|
DE466570C
|
|
Hot drawing bench
|
|
DE491290C
|
|
Process for operating hot-drawing bars for pipes
|
|
DE541144C
|
|
Process for the production of closed tubular pressure vessels, boiler parts or the like with disk-shaped floors
|
|
DE453929C
|
|
Drawbench for hollow bodies with guidance of the mandrel shaft through movable guides
|
|
DE406771C
|
|
Log furnace
|
|
DE450981C
|
|
High-pressure container with a special rigid insert that supports the manhole closure
|
|
DE596652C
|
|
Steam heating pipe arrangement for ovens
|
|
DE495004C
|
|
Hot drawing bench with exchangeable mandrel bars
|
