Patent GB-190607754-A (GB)
Title: Improvements in Wire Card Grinding and Dressing Machines.
Inventor: DRONSFIELD JAMES
Filed: 1906-03-31
Granted: 1907-02-21
Abstract: 7754. Dronsfield, J. March 31. Grinding wire cards.- In a machine of the same general type as that described in Specification No. 24,311, A.D. 1894, [Abridgment Class Spinning], for grinding and dressing wire card fillettin or card clothing mounted on a cylinder revolving between fixed bends, the grinding- heads are so constructed as to support the grinder-shaft, the traversing-motion, and the setting-motion in each case, and are compactly arranged so that a greater number than usual can be accommodated round the bend. The screwthreaded traversing-shaft is mounted in a sleeve on which slides a boss having arms to transmit the motion to the grinder, which slides on a separate shaft. A device is provided to prevent the grinders from being set up too far. The rollers mounted in a machine may be of uniform type or may be adapted to needle - point, side-grind, surface, or burnish the cards. The grinder-shafts s are carried in bearings supported by brackets c, Fig. 4, carried by fixed bends b, Fig. 1, one each side of the cylinder A on.which the wire card is mounted. The bracket c carries an auxiliary bracket d which rotates about its centre d<1> and is supported by a circular bearing d<2>. The shaft s is supported in a jaw in these auxiliary brackets d, one of which, to enable the ends of the grinder to be set up independently, carries an additional bracket e, revolubly adjustable about the centre d<1> by a screw e<2> and fixed by a bolt c<1>. The ends of the shaft s are mounted in bearing sleeves f secured by pinching-screws,f and slidably removable to facilitate the lifting of the grinder-shaft out of its support. Each grinder is set up by a hand-wheel q' which operates a worm p and wormwheel o. The worm-wheel is connected to a pinion n which meshes with sector racks m on the brackets d and causes them to rotate about the centre d'. The pinions n on both brackets c for each grinder are connected by a shaft h<1> supported in brackets g extending from the brackets c. In the case of a grinder extending across the width of the card cylinder, a traversing - motion such as that described in Specification No. 24,311, A.D. 1894, [Abridgment Class Spinning], is fixed to studu. In the case of a narrow or boss grinder, the shaft h<1> becomes the traversing-motion shaft and is screw-threaded as in Fig. 11. It is mounted in a sleeve i having ends j, one of which acts as a bearing for the shaft h<1> and the other as a bearing- sleeve through which the shaft extends. The outer end of the shaft is provided with a driving-pulley and the setting-up pinions n are attached to the endsj. A boss k, Fig. 9,.is mounted on the sleeve and carries swivelling rings l, to which are attached arms l<1> which embrace the grinder, slidably mounted on the shaft s, and cause it to traverse as the boss k is moved by its connexion with the screw-threaded shaft h<1>. Stops v<1>, Fig. 1, on the shaft h<1> are provided to engage with a fixed stop v', say the end of the screw q<3> to prevent the grinders being set up too far. The grinder is set np by ear and the stop v<1> is fixed in position by a set-screw v<3>. The grinder is then turned back and is ready for use, its final position being limited by the stop v<1>.