Abstract: Clamps are provided for clamping a length of pipe to the trough of a pipe handling apparatus. The clamps comprise two arms pivotally coupled to the trough on opposite sides thereof. The arms are movable to open and closed positions by two piston rods pivotally coupled to the arms and which are actuated by two cylinders pivotally coupled to the trough on opposite sides.

Abstract: A system for transferring lengths of pipe laterally between a pipe rack and a pipe handling apparatus. the system comprises two spaced apart arms located on one side of the pipe handling apparatus next to the rack. Each arm has one end pivotally coupled to support structure such that its opposite end may move upward and downward. The two arms are located in line with each other for pivotal movement about generally parallel axes respectively. A trough capable of supporting a length of pipe is pivotally coupled to each of the arms at their opposite ends such that the trough will move upward and downward with the opposite ends of the arms. A rotary actuator is provided for tilting the trough laterally in opposite directions. In addition, two hydraulic cylinders provided for moving the arms about their axes respectively for moving the opposite ends of the arms and the trough upward and downward.

Abstract: In a lightweight aircraft having a principal longitudinal load-carrying member, a wing structure mounted on the load-carrying member, a tail rudder and elevator assembly mounted on the load-carrying member, a propeller mounted on the load-carrying member for rotation about the member's longitudinal center line, an engine mounted on the load-carrying member, and means drivingly connecting the engine to the propeller.

Abstract: A storage system for securely holding lengths of pipe or the like and which comprises a plurality of pairs of rails having ends removably coupled to a pair of stanchions at different levels for holding a plurality of rows of pipe. Means is provided for removably connecting together the ends of the resulting two vertical rows of rails opposite the stanchions for securely holding the pipe and to allow the pipe to be removed and restacked. The storage system is capable of receiving modules of pipe.

Abstract: A system for transferring lengths of pipe laterally between a pipe rack and a pipe handling apparatus. The system comprises two spaced apart arms located on one side of the pipe handling apparatus next to the rack. Each arm has one end pivotally coupled to support structure such that its free end may move upward and downward. The two arms are located in line with ech other with their free ends facing in opposite directions. A lug is connected to each arm close to but spaced from its free end. The lugs extend from their arms outward toward the rack and are employed for holding a length of pipe. A fluid actuated cylinder system is provided for moving the free ends of the two arms upward or downward together for transferring a length of pipe between the rack and the pipe handling apparatus.

Abstract: A balance weight for counterbalancing vehicle wheels having a rim flange and a protruding lip to receive the weight composed of a body having a mass of heavy metal and a clip or adhesive to position the weight on the wheel. The body has a front wall facing outwardly from the wheel and at least one cutout area is provided on the front wall for receiving an additional weight. The additional weight is held in the cutout area by the walls. The additional weight can be adhesively secured to the first weight.

Abstract: An apparatus for performing a work function on a workpiece comprising a stationary base, a rotatable base mounted on the stationary base, a hydraulically actuated mechanism for rotatably displacing the rotatable base relative to the stationary base, a lower arm member pivotally mounted on the rotatable base, a hydraulically actuated mechanism for angularly displacing the lower arm member relative to the rotatable base, an upper arm member pivotally mounted on the lower arm member, a hydraulically actuated mechanism for angularly displacing the upper arm member relative to the lower arm member, a wrist assembly mounted on the upper arm member, a hand member universally mounted on the wrist assembly, a hydraulically actuated mechanism for angularly displacing the hand member relative to the wrist assembly, a mechanism disposed on the hand member for mounting a work tool, the stationary and rotatable bases including a rotary fluid slip ring assembly, and an assembly for transmitting fluid between the stationary

Abstract: The apparatus is employed for transferring pipe to and from the floor of a drilling rig. It comprises a stationary trough located below the rig floor and a movable trough aligned with the stationary trough. The movable trough has a vertically movable rear end supported to be moved between lower and upper positions and an opposite front end slidably supported by structure at the rig floor. In the lower position the vertically movable front end of the movable trough is next to the stationary trough and in the upper position, it is above the stationary trough. The movable trough is employed for lifting and lowering pipe between the stationary trough and the rig floor. Clamps are employed for clamping the pipe to the movable trough when it is lifting or lowering pipe.

Abstract: A friction drive wheel, particularly for obtaining a rotary drive for a hydraulic pump or electrical dynamo on a pipeline inspection pig, has a hub with a central hole and keyway for mounting on a axle. Attached to the hub is a rim in which are mounted bundles of bristles in ferrules. The bundle axis is at an acute angle to the radius of the wheel so that the bristles will act as a leading strut. A flange stop may be provided to limit deflection of the bristles.

Abstract: An article of improved wear characteristics and composed of a relatively low wear resistant base metal coated by a particulate refractory metal having a melting point of at least 1490.degree. C. deposited within the near-surface region thereof comprising a base metal or alloy of relatively low wear resistance, a refractory metal deposited within said near-surface region, said refractory metal being selectively deposited in the form of discrete particles, and the particles being idiomorphic or blocky or equiaxial or spheroidal or acicular or dendritic and a plurality of these particles having dimensions of less than 10 micrometers, a plurality of the particles being contiguous to form clusters of the particles that are spaced from each other. The clusters of particles may form microscopic regions of refractory metal which in turn may produce macroscopic regions of refractory metal having the appearance of a continuous coating.

Abstract: A treatment of atherosclerosis by the application of external electromagnetic energy capable of the generation of heat and biophysical alterations in intracellular particles and particles within atherosclerotic plaques to induce resolution of the atherosclerotic plaques. This process allows for the selective treatment of the atherosclerotic plaque without damaging the normal blood vessel by the compartmentalized alteration of biophysical properties within the atherosclerotic lesion.The process comprises introducing minute particles into the interior of atherosclerotic plaques and the cells involved in the lesion. These particles being injected intravenously while suspended in an appropriate solution are of a size generally having a diameter of approximately 1 micron or less and one of a material with properties such as ferromagnetic, paramagnetic or diamagnetic so as to be inductively heated when subjected to a high frequency alternating electromagnetic field.