GB855196A - Improvements in roller apparatus for rotatably supporting cylinders - Google Patents

Abstract

855,196. Work-holders. YATES PLANT Ltd. July 10, 1958 [April 10, 1957], No. 11681/57. Class 83 (3). A work-holder for rotatably supporting cylindrical work 6, comprises rolls 3, 5, and means for angularly adjusting the axis of at least one of the rolls to produce a component-offorce opposite to the direction of any " creep," and thus prevent axial movement of the work. In Fig. 1, the wheels of roll 5 are journalled on the ends of a shaft 4 which bears in the eccentric bores of collars 8 resting on opposite sides of a frame 1. Adjustment of the collars, and thus of the angle of shaft 4, is by levers 9 on the collars, which bear in levers 7 arranged to pivot on the frame to the broken-line position for larger work. Alternatively, a driven-roll may be skewed, and the rolls may have rubber tyres, or one may have a spherical rim. In Fig. 3, a pair of rolls 10 on each side of the work may be skewed oppositely, each roll consisting of four wheels journalled between carriers 12 which pivot on a shaft 13. This is carried at each end in a self-aligning bearing in a slide 14, adjustable in a guide 15 by a collar 19 fixed to an eccentric pin 20 on a shaft 21. The shafts 21 are connected by arms 22 and a link 23, and a further arm 24 on one of the shafts 21 is turned by a hand wheel 27 and a lead screw 26 to rotate the shafts and thus rock-shafts 13 in opposite directions substantially about their mid-points.