| 摘要 |
1,236,207. Work steadies. J. KLADICH. 22 Aug., 1968 [11 Sept., 1967], No. 41291/67. Heading B3T. A self-centering steady rest 10 for use on a lathe and which is mounted in a support frame 22 securable to the lathe bed 16 comprises a non- rotatable housing 20 clamped in the frame 22 and a sleeve 48 with a collet 42 therein which are together rotatable in the housing in bearings 54. The collet is axially displaceable in the sleeve, to effect gripping and release of a workpiece W, by way of a knurled ring 84 located at the rear end of the housing and which threadably engages the end of the collet. A hand actuated cam and pin device 106, 108 and 98 is provided to clamp the sleeve against rotation whilst the ring 84 is operated to effect gripping of the workpiece by the collet and ratchet pawl 90 is provided at the rear end of the housing within the knurled ring 84 to ensure retention of the collet in its gripping. The ratchet pawl is released to permit the release of the workpiece from the collet. |
