Gkn Floform Limited

Gkn Transmissions Limited

John S Waite

Leslie G Fisher

A method of making a center electrode for a spark plug comprising uniting together, by heating and without the use of brazing materials, slugs of copper and nickel alloy and then extruding the united slugs to form a central electrode having a copper core and a nickel alloy sheath.

Method of making a spark plug electrode

A method of making a universal joint outer member affording a cavity with axially extending grooves in the wall thereof for receiving torque transmitting balls, comprising fitting into a preformed outer member, of light weight material, one or more wear resistant elements which define the grooves, and subjecting the assembly to an extrusion operation to secure the groove-defining elements in position and form the outer member to size.

Universal joint outer member

A method of making a mount for a solid state semi-conductor comprising a mounting part secured to a body element comprising the steps of positioning a mounting part in contact with a body element, applying heat to the body element in the region of the inter-face between the body element and the mounting part by conduction from the mounting part for a time and at a temperature to cause melting of the body element in the region of the inter-face and consequently to cause bonding of the mounting part to the body element.

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Welshpool, United Kingdom

John S Waite