Gaskets

摘要

377,690. Joint-making packing. DETROIT GASKET & MANUFACTURING CO., 1579, East Milwaukee Avenue, Detroit, Michigan, U.S.A. April 27, 1931, No. 12412. Convention date, Sept. 26, 1930. [Class 12 (iii).] A metal insert plate is embedded in the gasket material, and is provided with tangs and cavities, punched from opposite sides. The gasket is reinforced about its edges, and preferably the reinforcement engages the tangs. Asbestos, cork, rubber or other treated composite fibrous matter may be compounded with a waterproofing agent such as suitable oleates, rubber mixtures, stearates, resinates, asphalts, bitumens adapted to stand heat, pressure, and gaseous action. A cylinder-head gasket is shown in Fig. 1. The reinforcement 10 coinprises a copper, steel, or alloy-metal strip which embraces one surface of the gasket with its ends covering the edges 12, Fig. 2. Both surfaces of the gasket may be covered. In a modification, the reinforcing strips may enclose a part or the whole of the inner gasket edges. The bolt holes and water openings have a reinforcement 15. The reinforcement is applied by pressure at any desired point, and may have tangs or spaced connecting-portions. A layer of reinforcing material may be secured upon one or both sides of the gasket by tangs. A number of layers of gasket 26 may be built up, with interposed inserts 27, Fig. 16. The finished article may be covered with graphite, bronzing or aluminium powder, &c. associated with a binding to form a heat-resisting, external coating. The Specification as open to inspection under Sect. 91 (3) (a) describes a construction with ferrule-shaped reinforcements suitable for a carburetter and manifold joint, and states that a plain, flat insert secured by reinforcements may be used. The tangs and cavities may be eliminated, the asbestos sheets being glued to the insert and held by reinforcements. This subject-matter does not appear in the Specification as accepted.