| 摘要 |
1,030,032. Chucks. S-P MANUFACTURING CORPORATION. Feb. 7, 1964 [Feb. 7, 1963]. No. 5290/64. Heading B3B. [Also in Division F2] A lever or wedge-operated or scroll chuck comprises a jaw-carrying body 14 adjustable radially on a means 50 for mounting the chuck on a spindle. The jaws are operated by a drawbar 13 and levers 29. The jaws are adjustable according to the location of keys 19. A dust bushing 33 has a bore for guiding a boring bar. The spindle 11 has a conical spigot 52 engaged by the ring 50 loosely secured to the chuck body 14. Numbered screws 60 in a ring 42 are used to adjust the chuck until a workpieee therein is concentric with the spindle. |
