| 摘要 |
A pipe cutter for forming end cuts in pipe, having a pair of annular torch holding members and an annular gear track connected to said members, and an annular vertically adjustable supporting member in which said torch holding members are concentrically mounted, said supporting member being rotatably mounted on vertically adjustable stands, and said stands being mounted on a pivotal base. The torch supporting members, having a cutting torch mounted thereon and a motor for rotating said torch supporting members, are mounted on said vertical supporting member, on rollers, said rollers being provided with braking means to control the speed of rotation of said supporting members. A torch holder, which adjustably holds the cutting torch in the desired position, the torch being suspended from said holder and having means for yieldably maintaining the horizontal position of the torch relative to the torch holder mounted on the vertical supporting members, reciprocates on a plate secured to the torch supporting member, a motor on said plate providing rotation to a threaded shaft on which said torch holder is mounted.
|
