Tube slitting traveler

Details Tube slitting traveler Tube slitting traveler

1995-11-27

1996-11-19

Hughes, S. Thomas

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

294265, 29727, 29 33T, 292835, 72186, B23P 1526

Patent

active

055750656

ABSTRACT:
A tube traveler and slitter for extracting a tube from a heat exchanger tubesheet and slitting the tube longitudinally into two segments includes two spaced apart deforming rolls having a nip between the peripheries defining a passageway. The periphery of each roll is serrated and has a cylindrical central portion of a larger diameter than the remainder of the periphery, and a cylindrical portion spaced from the central portion at each end of the roller, a truncated conical surface being between the cylindrical portions. The rollers extract and deform the tube into a configuration having a flattened central portion and a bulbous configuration at each edge. A rotary slitter blade is positioned for engaging and slitting each edge longitudinally. The axis of rotation of the slitter blades is downstream from the axes of rotation of the rolls.

REFERENCES:
patent: 2372795 (1945-04-01), Rodeck
patent: 3474655 (1967-05-01), Fulkerson
patent: 3921482 (1975-11-01), Osborn
patent: 4044444 (1977-08-01), Harris
patent: 4698196 (1987-10-01), Fabian
patent: 4815201 (1989-03-01), Harris
patent: 5070608 (1991-12-01), Gray
patent: 5293682 (1994-03-01), Hahn et al.

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