| 摘要 |
A pipe straightening apparatus comprising a first set of rotatably mounted elements which define, at least in part, a first passageway through which a pipe can be constrained to pass, so as to straighten the pipe, wherein the first set of rotatably mounted elements are arranged such that when a pipe translates within the first passageway, relative to the apparatus, the first set of rotatably mounted elements roll along the pipe, relative to the pipe, in a direction which has a component in the circumferential direction of the pipe and a second set of rotatably mounted elements which define, at least in part, a second passageway through which a pipe can pass, wherein the second set of rotatably mounted elements are arranged such that when a pipe translates within the second passageway, relative to the apparatus, the second set of rotatably mounted elements roll along the pipe, relative to the pipe, in a direction that is substantially parallel to the longitudinal axis of the pipe. |
