Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 659
power should be applied to the shaft h of one of the rolls in any desired manner, although itmay be applied to the shafts of one of the intermediate wheels. The dotted lines ij in sections,represent the inclination of the axis of the rolls, and the intermediate wheels form the axis roundwhich they… … When the rolls are set in motion a loop or ball of iron m, in a highly heated state, is dropped in be-tween them, at their upper end, the frame-work being left open above for that purpose, and the slightinclination of the axis of the three rolls from the vertical plane, as indicated by the dotted…
Mechanical engineering
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