| 摘要 |
<p>1,113,531. Lathe details; centres. T. BOWERS & CO. (TOOLMAKERS) Ltd. 22 Dec., 1965 [13 Jan., 1965], No. 1500/65. Headings B3B and B3T. An adjustable centre device for a lathe tailstock designed to facilitate taper turning comprises a centre element 11 mounted on a slide block 2 which slides on a slide plate 7 carrying a taper spigot 18 for attachment of the device to a lathe tailstock. An adjusting screw 3 which engages a nut 5 secured to the slide plate 7 is used to set the centre element 11, suitably graduated scales being provided to indicate the amount of offset. Locking screws 16 clamp the members 2, 7 together when the centre element 11 is in the offset position. A spirit level may be provided to ensure that the device is set so that the centre element 11 is displaced in a horizontal plane. In a modification (Fig. 5, not shown), the adjusting screw operates on a nut attached to the sliding member carrying the centre element.</p> |
