Manual pipe bevelling tool

Claim 1

A pipe bevelling tool comprising an elongate hollow shaft, an expanding mandrel on one end of said shaft, means extending through said shaft for expanding said mandrel to internally grip the pipe to be beveled, a cutting head journalled for rotation on said shaft and having a cone shaped hollow recess on the end thereof adjacent the pipe to be beveled, a plurality of slots formed in said recess, a cutting blade removeably mounted in each of said slots in said recess, means on said shaft for moving said cutting head in a pipe bevelling direction, a plurality of handles extending radially outwardly on said head for rotating said head with said cutters in engagement with the pipe to be beveled, said mandrel including a plurality of equi-spaced mandrel slots formed in the mandrel end of said shaft with each of said mandrel slots parallel to and spaced from a radius of said shaft, said mandrel slots each having the end thereof closest to the end of said shaft opposite said mandrel sloping outwardly toward the end of said shaft opposite said mandrel, said shaft having a conically shaped end portion at the mandrel end thereof, an internal jaw mounted in each of said mandrel slots for sliding longitudinal and radial movement therein, said jaws each having a beveled end for engaging the outwardly sloping end of said mandrel slot and a sloping portion for engaging the conically shaped portion of said shaft whereby endwise sliding movement of said jaws causes said jaws to move outwardly of said mandrel slots into internal engagement with said pipe, and resilient means securing said jaws in said mandrel slots.