GB353061A - Transmitting element for clutches - Google Patents

Abstract

353,061. Friction clutches. RUSSELL MANUFACTURING CO., Middletown, Connecticut, U.S.A.-(Assignees of Tower, E. V. J. ; Ferguson Avenue, North Syracuse, New York, U.S.A.) April 16, 1930, No. 12040. Convention date, March 8. [Class 80 (ii).] A friction clutch disc for use on motor vehicles is resiliently connected to its hub by radial bundles of leaf springs 32 placed in recesses in the disc and hub, the open ends of which are outwardly curved to relieve the springs of shearing stresses. The sheet-metal disc 13 has on each side an attached ring 27 bent outwardly to straddle the sides of the hub 12, or the disc itself and one attached ring may be bent in a similar manner. An additional loose connection 29, 30 is provided between the disc and the hub. Where the torsional-vibration periods of the motor under driving and coasting conditions differ, the curvature of the appropriate recess surfaces may be varied accordingly. The disc 13 has openings 14 defining non-radial spokes 15, the rim portion consisting of arcuate sections 17 each disposed in advance of a spoke in the direction of rotation and connected to the next spoke by a flexible bridging-strip 20. This construction facilitates cooling and is stated to damp out vibration in the disc. The rim has portions 23, 24, 25 bent out alternately on opposite sides to ensure progressive engagement of the attached facings 45. The disc may be built up, with separate spokes. Specification 353,885 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the leaf-spring vibration-damper is omitted. This subject-matter does not appear in the Specification as accepted.