Pipe cutting apparatus and method

Metal treatment – Compositions – Heat treating

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266 57, 266 60, B23K 704, B23K 710

Patent

active

042227950

ABSTRACT:
Apparatus for cutting and beveling pipe comprising a horizontally positioned and movable member, roller means to support and axially rotate a horizontal pipe parallel to the member, a photocell scanner mounted on the member and positioned to follow a profile template circumscribing a pipe on the roller means, drive means, responsive to a signal from the photocell scanner, adapted to move the member horizontally in either axial direction as the photocell scanner follows the profile template, a cutting torch pivotally supported by a mounting on the member and positioned to cut through a pipe, rotating axially on the roller means, in a cutting path having the same profile as the template, a support on the member movable axially of a pipe on the roller means, a second photocell scanner mounted on the movable support and positioned to follow a bevel contour template circumscribing a pipe on the roller means, an arm extending from the support and pivotally connected with the cutting torch, and drive means, responsive to a signal from the second photocell scanner, adapted to move the support and arm in either axial direction as the said photocell scanner follows the bevel contour template thereby orienting the cutting torch at an angle to cut a pipe wall with a bevel.

REFERENCES:
patent: 3409282 (1968-11-01), Livers
patent: 3430938 (1969-03-01), Blackburn
patent: 3614077 (1971-10-01), Blackburn
patent: 4127256 (1978-11-01), Jacobs
patent: 4143862 (1979-03-01), Krieg

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