| 摘要 |
999,090. Screw and riut gearing; valves; shaft couplings. ROTORK ENGINEERING CO. Ltd. July 8, 1964 [July 25, 1963], No. 26460/64. Divided out of 919,154. Headings F2Q, F2U and F2V. In a motion transmitting mechanism, e.g. for a valve actuator 10, a flange 15 of a nut 14 is drivingly connected to the end 16 of a rotatable drive shaft 12, e.g. by axial keys or dogs on the shaft end engaging slots in the flange 15, the flange 15 and shaft end 16 being held in engagement by a flange 23 of a sleeve 19 threaded to the shaft, a driven spindle, e.g. a valve spindle (not shown), being drivingly connected with the nut either by a screw thread 26 for axial movement, or by a keyed connection (not shown) for rotation, in response to rotation of the drive shaft. The main body of the nut may lie inside the hollow end of shaft 12, or may form an extension of the shaft. |
