| 摘要 |
<p>1,265,317. Toothed gearing. ROTAX Ltd. 11 April, 1969 [29 April, 1968], No. 20135/68. Heading F2Q. [Also in Division G1] A device for measuring the relative displacement of two parts 10, 12 comprises a screw threaded shaft 17 secured to part 10 and serving as a rack, and a pinion 19 mounted on the part 12 and operating indicating means 20. The pinion 19 may be in two spring-loaded parts to prevent backlash. The shaft 17 may be turned occasionally to allow even wear.</p> |
