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DE801894C
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Grinding device for sealing surfaces of the seat rings in the housing of gate valves
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DE691865C
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Bending device for rounding tubes from sheet metal
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DE707485C
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Process for removing the burr on the weld seam of electrically welded pipes formed from steel band into a pipe
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DE685457C
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Arrangement for the axial displacement of two electrode rollers arranged on a common axis for electrical welding devices
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DE693225C
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Rolling mill with several frames containing one behind the other and alternately vertical and horizontal rolls
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DE652422C
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Plug rolling mill with bar bed and guide bridges arranged in it
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DE671362C
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Plug rolling mill with feed carriage
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DE661016C
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Tubular glazing mill with movable mandrel bar abutment
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DE685247C
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Hot drawing bench for multiple drawing of tubes in one heat
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DE646765C
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Device for regulating the temperature of pipes that are expanded by pulling a mandrel
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DE646766C
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Press for pressing out, in particular, steel and iron pipes
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DE597641C
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Material for molds for the production of steel blocks
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DE593003C
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Electric control circuit for hydraulic presses with automatic control of the valves by an electric motor driven camshaft
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DE568642C
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Hydraulic press
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DE544663C
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Mandrel bar lock for rolling mills for expanding pipes
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DE514243C
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Pin lock for tube rolling mills
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DE540045C
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Hot drawing bench with device for multiple drawing of tubes in one heat
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DE578845C
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Press for the production of nozzle stones for converter floors
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DE577929C
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Cold straightening machine with hyperboloidal rollers
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DE608410C
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Plug rolling mill in which a guide for the rolling stock is arranged between the return rollers and the rollers
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