GB719590A - Improvements in or relating to anti-vibration mounting devices - Google Patents

Abstract

719,590. Resilient mountings. WELLS & CO., Ltd., A., and UNITED - CARR FASTENER CORPORATION. Aug. 14,1953 [Aug. 25, 1952; Oct. 20, 1952], Nos. 21277/52, and 26261/52. Class 108(3) An anti-vibration mounting comprises a columnar member 11 passing centrally through an annular base-member 10, and resiliently supported at both its ends, the resilient support for one end, at least, comprising a set of helical springs 12 arranged with their axes on the surface of a cone, and damping sleeves 16 frictionally engaging the exterior or interior surfaces of some, at least, of the springs 12. The invention is described as applied to a mounting of the kind forming the subject of Specification 571,026. The sleeves 16, shown, are of metal, and are split so that they can be sprung into position over the terminal portions of the springs. When the sleeves 16 are to be disposed within the interior of the spring, the sleeve is positioned within the spring before the terminal portion is formed at one end. Alternatively, the sleeves may be continuous and formed of "Vinylite" (Registered Trade Mark), wire gauze, or a silicone material. Axial movement of the e mounting is limited by plates 18. Radial movement is limited by a cylindrical sheet-metal member 19 having spring fingers 20. Alternatively, Fig. 3 (not shown), the member 11 may be formed with a cylindrical enlargement. In a further modification, Figs. 6, 7 (not shown), a plate secured to the member 10 by eyelets, has an aperture surrounding the member 11. Spring fingers turned over from the rim of the aperture, serve to limit relative radial movement of the members 10, 11. In the latter construction, each conically disposed set of springs 12 is secured to a respective plate 10, each of which are rigidly secured by the eyelets.