Patent GB-1187829-A (GB)
Title: Spindle for Spinning or Twisting Machine.
IPC: D01H7/22
Filed: 1967-11-16
Abstract: 1,187,829. Mounting spinning-spindles; brakes. SPINDELFABRIK SUSSEN, SCHURR, STAHLECKER & GRILL G.m.b.H. 16 Nov., 1967 [27 Dec., 1966], No. 52250/67. Heading DID. [Also in Division F2] In a spindle-arrangement for a spinning or twisting machine having a brake comprising a pair of levers acting radially on the wharve, and mounted, together with their actuating- means on a stationary brake support, a bifurcated plate is secured to the support and is slidable from one side into transverse grooves in the spindle bearing, or in a part integral with or secured thereto, and engages at least at two points radially into these grooves. The grooves may each be a part of a common annular groove which may be provided in the bearing housing itself, or in the upper flange by which the bearing housing is secured on the spindle rail, or which may be provided between the flange and a cap screwed on to it. In Fig. 1, the plate 5a is the lower member of a U-shaped sheet-metal brake support 5 and takes the form of two resilient arms 6a, 6b terminating in surfaces 6a 2 , 6b 2 , which by the resilience of the arms, are forced into a groove 2b to locate the support. The groove is formed in a flange 2a which cooperates with a nut 3 to secure the housing on the ring-rail. The support is additionally located by surfaces 6c 1 , 6c 2  and a projection 6d which are forced respectively into the groove and a recess because the surfaces 6a 2 , 6b 2  engage the groove on the far side of the axis E3. The outer edges of the central web 5c of the support serve as pivots for two brake-arms 7a, 7b having shoes 7e, 7f, urged by a spring 8 to a position when they engage with an eccentric at 9 which normally holds them out of engagement and which are applied when the eccentric is rotatedby a handle 9c. In modifications of this form, (a) 'the handle may be mounted above the support; (b) the base plate may be rivetted relative to the support for interchangeability; (c) each of the surfaces 6a 2 , 6b 2 , may engage over an arc centrally of the axis E3 (Fig. 6, not shown) and may be formed by bending the arms 6a, 6b, after they are slid into position (Fig. 7, not shown); (d) the surfaces 6c 1 , 6c 2  may have between them a concave -projection (76c 3 , Fig. 7, not shown) which engages a recess milled into the groove; (e) the spring shown may be replaced by a coil spring with its ends engaged in recesses in the ends of the brake-arms (Fig. 9, not shown) (f) one of the brake-shoes may be provided with an integral or other catch for retaining the wharve; (g) the operating cam may be formed with an extra lobe so that it may be used for releasing the catch and allowing the rotating part of the spindle to be removed; and (h) the housing flange is formed with opposite lateral flats and the bifurcated plate is slid into grooves in these flats and have terminal projections which prevent its unintentional withdrawal. In Fig. 15, the bearing housing has no upper flange, and is retained by a bracket 153 caused by tightening a screw 151 to press the housing against one side of the bore through the spindle rail 151. The bifurcated plate 156 of the brake support 155 is held by a groove 152b of the housing and is prevented from turning by a projection 156c &c., which engages a slot in the bracket. In Fig. 16, the housing flange 162a has a shoulder 162b, and a threaded upstanding annular flange 162b 2 . Inside the flange is a collar bearing 164c securing the spindle in position when a sleeve 164d is compressed by a cap 162c screwed on the flange 162b 2 . The bifurcated plate of the bearing housing is held on the groove formed between the lower edge of cap 162C 1  and the upper edge 162b 1  of the flange 162a.