| 摘要 |
1,114,703. Positive couplings; universal joints. UNITED ENGINEERING & FOUNDRY CO. 4 Aug., 1965 [10 Aug., 1964], No. 32557/64. Heading F2U. A roller 27 is connected to a coupling sleeve by tapered keys 31, 32 engaging correspondingly converging internal surfaces of the coupling sleeve and engaging flats on the roller. The keys are urged outwardly by springs 35 to permit easy entry of the roller, the keys being retained in position in the absence of a roller, by holders 37, 38 secured to the sleeve and engaging shoulders formed on the sides of the keys. The coupling sleeve is formed with internal teeth 22 co-operating with a toothed member 12 to form a universal joint, the sleeve being urged to the left by a spring 14 to a position limited by a ring 23 in the absence of a roller. Lubricant seals 24 are provided. |
