| 摘要 |
A triple roll entry guide where the guide has two sets of operation, a first which operates as a standard triple roller entry guide. Here the guide functions as a standard guide wherein three levers are pivoted about a work product axis to guide the work product into the reduction rolls of the mill. The guide will accept a predetermined size range of work products. In this instance the rollers of the guide overcome the force holding the levers in their usual working position and force the levers to assume a new position which the work product is accepted in the guide. This is the second method of operation, and in it the levers of the guide are "preloaded" so that the guide functions as a standard guide under prescribed conditions. Under conditions which lead to the acceptance of a work product of a larger diameter in the predetermined size range the levers of the guide overcome the force which limits the maximum position of the levers of the guide and the work product is accepted by the guide.
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