Guide system for flame cutting of pipe

Details Guide system for flame cutting of pipe Guide system for flame cutting of pipe

1982-01-22

1983-11-08

Stallard, W.

Metal treatment

Compositions

Heat treating

266 54, 266 56, B23K 704

Patent

active

044140410

ABSTRACT:
A guide system for a gas cutting torch used to bevel the ends of pipe in preparation for welding includes a circular sleeve with integral spacer bars coacting with a radial screw for fixing the circular sleeve coaxially around a pipe to be bevelled; the sleeve has an end bevelled at the same angle at which the pipe is to be bevelled; an adjustable follower or torch-holding stepped-spool engages the sleeve bevel to reproduce that bevel angle on the pipe end and engages a groove around the sleeve adjacent the sleeve bevelled end for axial constraint of the gas cutting torch; the coaxial circular form of the stepped spool permits a user to rotate a gas cutting torch about the axis of the flame for better maneuverability without disturbing smoothness of cut; the groove structure defines an open "V"-section groove to permit rocking the torch for burning an initial hole adjacent to but clear of the area to be bevelled.

REFERENCES:
patent: 1352381 (1920-09-01), Reynolds
patent: 1991117 (1935-02-01), Porteous et al.
patent: 3856283 (1974-12-01), Johnson
patent: 4273313 (1981-06-01), DeNardo

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