Abstract: An improved adjustable wrench (10) having a body (12) that is divided into a handle portion (14) and a head portion (16). The head portion has an opening (20) defined by a first jaw member (22), a second jaw member (24), and a back portion (26). The first jaw member has a planar surface (32) that is spaced a predetermined distance from, and is parallel to and facing, a corresponding planar surface (34) on the second jaw member. A plurality of inch-increment shims (50) and a plurality of metric-increment shims (52) and an adapter shim (54), each having a hole (56) near one end, are pivotably coupled by a bolt (40) to the first and second jaw members. The bolt divides the opening into a shim-storage region (64) and a fastener-receiving region (62).

Abstract: An improved outgoing mail signal device for use on rural mailboxes which are partially enclosed by decorative structures such as those composed of brick (or stone) and mortar. The device comprises a support bracket mounted to the door of the mailbox and a signal arm pivotably coupled to the bracket. In operation, the signal arm is rotated up to a stable, over-centered, raised position to indicate the presence of outgoing mail. Upon opening the door, the signal arm returns to the lowered position automatically under the action of gravity. The device has only two stable rest positions, fully raised and fully lowered, for unambiguous signaling. To a viewer located to the side of the mailbox, the signal arm is highly visible when in the raised position and hidden from view when in the lowered position.

Abstract: Gas turbine engine coatings must often be removed during engine maintenance and repair. The techniques utilized to accomplish this task, machining, chemical stripping, machining followed by chemical stripping, or grit blasting, frequently result in component damage or destruction. Liquid jet erosion can be utilized to remove seals, coatings, or portions thereof without damaging the engine hardware.

Abstract: Gas turbine engine coatings must often be removed during engine maintenance and repair. The techniques utilized to accomplish this task, machining, chemical stripping, machining followed by chemical stripping, or grit blasting, frequently result in component damage or destruction. Liquid jet erosion can be utilized to remove seals, coatings, or portions thereof without damaging the engine hardware.