United Technologies Corporation

United States of America As Represented by the Secretary of the Air Force

Myron C Starr

Fred L Honeycutt, Jr

James R Loftis

A hinge assembly includes a hinge pin which passes through interfitting knuckles of two leaves which are to be hinged. An L-shaped tab lock has, in one embodiment, one leg trapped between a pair of the knuckles and another leg which passes through a slot in the head of the hinge pin and is folded over to prevent axial movement of the pin relative to the tab lock and knuckles. Preferably a flat on the side of the pin head abuts a flat surface on one of the leaves to prevent movement of the pin relative to that leaf.

Hinge assembly having an L-shaped locking tab

A method for adding a residual compressive stress to the rim of a turbine disk by heating the disk to a uniform high temperature, then insulating the rim from the remainder of the disk and cooling to a temperature wherein the rim yields in tension.

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Jupiter, FL, United States of America

Myron C Starr