GB191510876A - - Google Patents

Abstract

10,876. Nicolai, G. July 29, 1914, [Convention date]. Roller mills.-Three-roll mills of the sugarcane type, having hydraulic-pressure compensation bearings for the top roll or the two lower rolls, have the bagasse bridge arranged so that it can be adjusted for varying feed during running, the cutting-edge being pressed against the second roll, and the predetermined ratio between the feed and discharge gaps maintained constant. The roll bearings are also formed with spherical surfaces, so as to allow of uneven feed. Fig. 1<a> shows the arrangement when the hydraulic,pressure compensation is applied to the top roll. The support B for the bagasse bridge is mounted in bearings 1 at each end so as to be capable of horizontal movement by intervening connexions and screw 22, and vertical movement by the wedge 6, the cutting- edge K being maintained in contact with, the roll by means of the parallel links 10, 11, one of which is adjustable in length. In the form in which the hydraulic-pressure compensation is applied to the lower rolls, the lower bearing 1 of the bridge B is replaced by an eccentric arrangement of shafts adjustable by a pawl and lever, the lower link of the parallelogram being changed to an adjustable link connected between one eccentric and the horizontal adjusting-screw on the bearing of the first lower roll. The bagasse bridge is adjustably mounted on its support by means of set-screws and may have an hydraulic compensation. The bearings for the rolls are provided with bushes shaped to receive bearings the outer faces of which are spherical, the centre of the sphere being the axis of the roll, so that the rolls can adjust under, the pressure obliquely without throwing undue strain on the bearings.