| 摘要 |
1,103,016. Bearings; lubricating. SOCIETE GENEVOISE D'INSTRUMENTS DE PHYSIQUE. 14 Oct., 1966 [26 Oct., 1965], No. 45976/66. Heading F2A. A slide 1, Fig. 1, having a pocket 3 therein which is supplied with pressurized fluid, is supported by a member 2, the pressurized fluid being supplied from a source 6 and which is connected to the pocket 3 via a throttle 5 and a pipe 4, the pipe 4 being connected by means of a pipe 9 to a by-pass 7 provided with a safetyvalve 8 so that in the event of the throttle 5 becoming blocked, the pocket 3 is supplied with pressurized fluid from the by-pass 7. In a modification, the throttle 5, Fig. 2, and the safety-valve are combined. The throttle 5 is formed in a valve-body 12 which is slidably received in a tube 10 and connects to a pocket 3 via a bore 18 in the valve-body 12, a chamber 15 in the slide 1 and a passage 17 therein. The valve-body 12 is provided with a frusto-conical surface 13 which is forced against an end of the tube 10 by means of a spring 14 in the chamber 15. The other end of the tube 10 has a drainscrew 11 therein which, when screwed inwardly, opens the valve formed by the surface 13 and the tube 12. In use, pressurized lubricant is supplied at 6, is passed through a pipe 16, through the annular space between the tube 10 and the valve-body 12 and through the throttle 5 &c. to the pocket 3. In the event of the throttle 5 becoming blocked, the valve-body is forced downwards against the action of the spring 14 and lubricant passes between the surface 13 of the valve-body 12 and the tube 10 to the chamber 14 from where it passes through the passage 17 to the pocket 3. The valve-body 12 vibrates when the valve opens and acts as a sound warning to indicate that the throttle is blocked. |
