| 摘要 |
An apparatus for heating a length of pipe and/or sleeve mounted thereon includes a main frame defined by a pair of posts for mounting on the pipe on each side of the area to be heated and a guide bar extending between the top ends of the posts parallel to the pipe; a screw extending between the posts above the pipe in the use position; a carriage mounted on the screw for movement longitudinally of the pipe when the screw is rotated; a bifurcated heater carrier frame, the arms of which are pivotally connected to the carriage for rotation between an open position and a closed position in which the heaters surround the pipe and any sleeve mounted thereon, whereby, with the heaters in operation, the carriage and consequently the heaters can be moved along the pipe to heat the latter uniformly.
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