The present invention provides an improved shackle having particular utility in underwater salvage operations. The present invention discloses a shackle that has a generally U shaped body that is comprised of a bow portion and first and second spaced apart arms. Each arm has an end portion with an opening for receiving a shackle pin. The shackle pin is sized and shaped to simultaneously fit through the shackle pin openings, and end portion of the pin having external pin threads. A nut provides a...

In a shackle the shackle arms are bored to receive a pin and the pin and the bore through which the pin first enters, are shaped so that a plate, initially convex toward the pin may be flattened over the end of the pin and anchor itself in recesses in the shackle to retain the pin.

The present shackle is especially constructed for securing a wing to the fuselage of an aircraft or of a spacecraft. For this purpose the elements of the shackle intended for taking up pressure and tensile forces as well as the elements providing the necessary structural stability are made of fiber compound materials such as carbon or boron fibers.

An improved shackle apparatus that introduces improvements to the basic shackle design to allow for easy release under load, a high strength to weight ratio, and low wear on sliding surfaces. Easier release under heavy load is accomplished with a nonsymmetrical trigger hole design. The contour of the trigger hole pushes the fid to the side of the trigger, thus producing greater leverage on the trigger that would have been applied with the same amount of force as originally applied to the fid. In...

A shackle assembly is shown to include a shackle bracket, wear pads, a shackle stop, shackle plates and elastomer bushings. The shackle bracket includes legs forming portions thereof, which serve as contact surfaces for the wear pads and the shackle plates. By providing conical and lateral stiffness, the shackle bracket legs allow for the use of a more versatile elastomer bushing. The elastomer bushing preferably includes voids vertically separated with respect to each other and the elastomer la...

A safety shackle having a modified U-shaped design comprising first and second arms, first and second cusps, a first slot disposed between the first arm and the first cusp and a second slot disposed between the second arm and the second slot, and a working area disposed between the first and second cusps. A designated chain link is introduced with within one of the slots and is locked within the slot by orienting the contiguous chain links in a plane perpendicular to the designated chain link, t...

An "arrest" handcuff has the usual ratchet and pawl mechanism for closing the wrist aperture. In order to deadlock the pawl a runner is shifted by means of a manual push-button so that a stump on the runner then overlies a nose portion of the pawl. To release the deadlocking and pivot the pawl clear of the ratchet the runner must be shifted in the reverse direction, which movement is normally blocked by a lever pack operating on a stump extending from the runner. A correct key, however, can lift...

An apparatus and method of articulating a vehicle is disclosed using a rotatable shackle connected to the frame and the suspension system of the vehicle. As one side of an axle is moved to a different levels from the other side, the shackle rotates, allowing the vehicle to articulate and assisting the spring eye of a leaf spring suspension system to remain substantially in its resting position. Pivoting connections may be provided where the rotatable shackle is connected to the frame, where the ...

A padlock shackle made of an inner core of ductile nickel-titanium alloy, outer casing of hardened stainless steel, and an intermediate layer of a composite of tungsten carbide particles in a nickel-titanium alloy matrix which is bonded to the nickel-titanium alloy core and mechanically bonded to the stainless outer casing.

A snap shackle has a body formed on one side with an attachment such as a swivel eye and on the other side with a C-shaped arm having an outer end forming a pivot for a complementarily shaped pivotal arm whose free end in turn is engageable against the shackle body to form another eye. A latch constituted as a stirrup pivotal about an axis parallel to the pivot axis of the pivotal arm is mounted on the shackle body and has a bight that can engage in a holding position over the free end of the pi...