Abstract: The conveying and off-loading apparatus, used in machines for the automatic selection and distribution of products, comprises a conveyor for transporting individual products from examination stations to discharge stations along a path, including an elongate flexible closed-loop belt and a plurality of rollers distributed on the conveyor. The rollers have axes extending transversely to the longitudinal extension of the conveyor, and adjacent rollers define between one another elongated holders for individual products. Forks rotatably support the rollers on the chain and are adapted to allow small vertical oscillations of the rollers, as the weight of the product and its holder is lifted from the chain and transferred to a level section of the ramp associated with a weighing device at an examination station. The forks are mounted along the chain and oscillate about an axis parallel to the path. The rollers are selectively tiltable for off-loading a product from the conveyor at one of the discharge stations.

Abstract: A centrifuge conveyor is provided with improved hard surfacing wherein assemblies of backing members and wear-resistant members are welded by the backing member to the conveyor. An assembly may be made unitary by providing a hole in either or both of the wear-resistant member and the backing member and securing them with means extending through the hole or holes. In the event that repair is necessary, an individual assembly may be replaced by welding technique, or the backing tile may be left in place and only the wear-resistant member replaced by removing and replacing the securing means. Each fragile wear-resistant member is braced against deflection at its outer portion through its backing member to the conveyor. The embodiments employ a plurality of wear-resistant members, each such member being accurately pressed from sintered tungsten carbide.

Abstract: A centrifuge conveyor is provided with improved hard surfacing wherein unitary subassemblies of backing tiles and wear-resistant members are welded by the backing tile to the conveyor. A subassembly is made unitary by the interengagement of the wear-resistant member to an undercut groove in the backing tile and by bonding with a heat reactive adhesive or grout applied to the interengaging parts. Each fragile wear-resistant member is braced against deflection at its outer portion through its backing tile to the conveyor. The preferred embodiment employs a plurality of wear-resistant members per backing tile, each such member being accurately pressed to its intricate, interlocking shape from sintered tungsten carbide.

Abstract: An improved anode is disclosed for high resistivity, cathodic protection systems in which D. C. current is impressed from the anode. The anode includes a cable comprising a conductor with an insulating jacket, with a mesh or expanded metal sheet of platinum - clad - niobium formed about and gripping the insulating jacket. The platinized mesh is electrically connected to the conductor at an enclosed terminal along the length of the cable.

Abstract: In a decanter centrifuge having the heavy phase discharge weir a greater radial distance from the bowl axis than the light phase weir, a slender feed cone is provided to minimize turbulence from feed entering for separation and the baffle is of annular construction mounted on the feed cone. The baffle is made in sections which overlap circumferentially to prevent liquid flow in axial direction, and which also adjustably overlap in radial direction in order to permit selective adjustment of its outside diameter.

Abstract: Boat's engine speed and direction of rotation of the engine's propeller shaft are remotely controlled at the helm. Movement of hand control knobs through a semicircular area controls the full range of speed of the engine as well as its forward-neutral-reverse actuator. The knobs rotate a pulley structure which steps up rotation to flexible shafts. The stepped-up rotation of the flexible shafts is converted to linear motion by ball screw cylinders having output members connected to the engine's speed and propeller shaft actuators.

Abstract: A hard surface on reactive metal such as a titanium member is weld deposited in an inert gas atmosphere using a welding rod tubing made of the same metal as the member and filled with tungsten carbide particles.

Abstract: A silverless gold alloy consists of about 50-58% gold, 0.5-10.5% indium, 0.5-8.5% tin or 1.0-3.0% gallium, and the balance palladium. This alloy has physical properties similar to ADA Spec. No. 5 for Type IV dental casting gold alloys; and it may have porcelain fused thereto for making dental prosthetic appliances, with little chance that the porcelain will be stained.

Abstract: Adamantane derivatives such as .beta.-(1-adamantyl)-.alpha.,.alpha.-dimethylethylamine hydrochloride, .beta.-(1-adamantyl)-.alpha.-methylethylamine hydrochloride, d-.beta.-(1-adamantyl)-.alpha.-methylethylamine hydrochloride, and 1-.beta.-(1-adamantyl)-.alpha.-methylethylamine hydrochloride have anorectic activity.The hydrazine derivatives of the above compounds are antihypertensive agents, and monoamine oxidase inhibitors.

Abstract: This invention relates to centrifugal separators but more particularly to a solid bowl centrifugal separator for separating a coarse solids fraction, a fine solids fraction and one or two liquid fractions having different specific gravities from feed comprising a liquid-solids mixture. The present invention relates to a solid bowl centrifugal separator which comprises an elongated bowl tapered at both ends and mounted for rotation about an axis. Coaxially mounted within the bowl is a helical screw conveyor having portions of opposite pitch to transport each of the two solids fractions towards their respective discharge ports located in the tapered ends of the bowl. Means are also provided for the discharge from the bowl of two liquid fractions of differing specific gravity. Each of the fractions is discharged into separate segments in the collector casing.

Abstract: The interior of a centrifuge is cleaned without disassembly by the steps of flushing the interior of the bowl, introducing a cleaning liquid to the bowl, and rotating the bowl at a low speed in which the centrifugal force and the gravitational force on the cleaning liquid are approximately equal. With this method, the bowl, an axial screw conveyor arranged coaxially within the bowl, and the surfaces of other parts within the bowl are all cleaned by the turbulent body of cleaning liquid. Optionally, the centrifuge bowl may be rotated unidirectionally, or it may be turned for a period of time first in one direction and then for an additional period of time in opposite direction. As a further option, the axial screw conveyor may be rotated at maximum speed differential from the rotational speed of the bowl in order to increase internal turbulence and thereby intensify agitation and scouring by the cleaning liquid.

Abstract: An improved head immobilizing device for use with panoramic x-ray machines is provided. The improvements reside principally in a mechanism for adjusting the level of the chin rest in vertical direction and for securing the same by means of a screw device employing two threads of different pitch. The arms which engage the sides of the patient's head are positioned by movement of horizontal, spaced rods driven by a simplified drive mechanism employing either an H-shaped plate contacting rollers on the rods or a drive member connected to the rods by means of links.

Abstract: A decanter centrifuge has a screw conveyor within an imperforate bowl defining a helical chamber. The conveyor is provided with a baffle extending in generally axial direction between the screw flights, thereby dividing the helical chamber within the bowl into a separating zone and a heavy phase discharging zone. The outer portion of the baffle defines with the bowl a restricted passageway which permits the underflow of separated heavy phase material from the separating zone to the heavy phase discharging zone. Pressurizing means, preferably means for maintaining the inner surface of the separated light phase layer inwardly of the weir surface of the heavy phase discharge port, helps advance the separated heavy phase material through the restricted passageway and toward the port through which heavy phase material is discharged.