Abstract: A method of manufacturing a bonded friction product, such as an automobile brake shoe, and apparatus therefor, includes forming a plastic inner lining element of uncured or green thermosetting resin binder containing friction modifiers and reinforcements and bonding the element to a shoe platform by way of an adhesive resin in a heat and pressure regime which cures the resin binder and adhesive. The need for a closed mold and/or venting stops is avoided by a stabilizing press (50) which includes a heated bed (53) between guide plates (56, 57) that has a recess (52) of less thickness than the lining element (16) to receive such lining element in its green state. The guide plates are spaced slightly further apart than the width of a shoe platform which is, having been preheated, brought down onto the lining element and pressed by a pneumatic ram (70), the loosely sliding shoe body (11) comprising a non-sealing closure member of the press.

Abstract: A brake shoe, in which a friction lining is secured to a platform of a shoe body solely by a thermosetting adhesive resin cured at elevated temperature, has a friction material including fibrous reinforcement materials and an uncured thermosetting binder, roll formed to define a green lining element which is sandwiched with the adhesive between the platform and a bearing surface that applies small constraining pressure by way of the major faces but not minor faces. The resins of the adhesive and lining element are cured together in situ on, and into intimate conformity with, the platform. The constraining pressure is preferably long enough to overcome any tendency for the curing friction material to expand in thickness or fall in density due to evolution of gases therein, by easy escape of gases from the unconstrained minor faces permitting the small constraining pressure on the major surfaces.

Abstract: Textile fabrics, yarns and cords are impregnated with rubber, resin and particulate materials by dipping in an aqueous dispersion comprising an aqueous rubber latex, resin and the particulate material, the dispersion further containing a very minor amount of a water-soluble silicate, such as sodium silicate. After drying, the products can be used as reinforcement for mechanical rubber goods and friction materials such as clutch facings and the like.