Abstract: A Single Fluid Reactor with an inner zone that includes a solid neutron moderator, which can have through holes defined therein. This solid neutron moderator can have a relatively small diameter, which can range, in some embodiments, from less than one meter to about 1.5 meter. The solid neutron moderator effectively creates an inner zone with a neutron profile that is far more thermalized than if the solid neutron moderator were absent. The surrounding layer of salt surrounding this inner zone has a much harder neutron spectrum.

Abstract: A Single Fluid Reactor with an inner zone that includes a solid neutron moderator, which can have through holes defined therein. This solid neutron moderator can have a relatively small diameter, which can range, in some embodiments, from less than one meter to about 1.5 meter. The solid neutron moderator effectively creates an inner zone with a neutron profile that is far more thermalized than if the solid neutron moderator were absent. The surrounding layer of salt surrounding this inner zone has a much harder neutron spectrum.

Abstract: A molten salt breeder reactor that has fuel conduit surrounded by a fertile blanket. The fuel salt conduit has an elongated core section that allows for the generation of electrical power on a scale comparable to commercially available nuclear reactors. The geometry of the fuel conduit is such that sub-critical conditions exist near the input and output of the fuel salt conduit and the fertile blanket surrounds the input and output of the fuel salt conduit, thereby minimizing neutron losses.

Abstract: A molten salt breeder reactor that has fuel conduit surrounded by a fertile blanket. The fuel salt conduit has an elongated core section that allows for the generation of electrical power on a scale comparable to commercially available nuclear reactors. The geometry of the fuel conduit is such that sub-critical conditions exist near the input and output of the fuel salt conduit and the fertile blanket surrounds the input and output of the fuel salt conduit, thereby minimizing neutron losses.

Abstract: Apparatus for reducing dust emissions from particulate commodities such as wheat or coal using a curved loading spoon connected to the discharge from a loading spout. The curved loading spoon turns particulate commodities delivered at a rate above a predetermined delivery velocity against a curved outer wall causing dust arising from the particulate commodities to be re-entrained within the commodities as they are diverted from a straight path by the curvature. Also described are an optional flap designed to rest just above the surface of the commodities stream adjacent the outlet, and a converging duct located upstream of the curve loading spoon and arranged to direct commodities against the curved outer wall adjacent the inlet.

Abstract: There are disclosed methods for inhibiting dynamin-dependent endocytosis in cells comprising treating the cells with an effective amount of a compound of formula (I), or a dimeric tyrphostin, physiologically acceptable salt, or prodrug thereof. Compounds useful in the methods described are also provided. The inhibition of dynamin-dependent endocytosis of cells is applicable to the treatment of epilepsy and neurological disorders and conditions.

Abstract: Method and apparatus for the separation of particles from a particulate suspension. The apparatus comprises a rotating flotation drum (10) with a feed distribution chamber (13). Particulate suspension feed enters the chamber through a delivery pipe (20). The feed passes through holes (21) into the particle collection chamber (22). Air is passed into the particulate suspension through a porous inner wall (29) and a froth is generated. The froth and particulate suspension pass into a froth cleaning chamber (32). The froth is washed by being sprayed from a washwater distribution pipe (47). Froth is removed from the drum by a froth scraper (49) through a froth removal chute (50). Unfrothed particulate suspension passes through openings (40) into a weir chamber (41) and is removed through a launder (45).

Abstract: A blind rivet setting device which automatically feeds blind rivets into a rivet table, then sets the rivet by pulling and detaching the mandrel. The rivet feed mechanism includes a thin strip or ribbon of flexible material capable of holding the mandrel tips pierced therethrough and evenly spaced apart. The strip is drawn through a transverse feed slot formed through the rivet table generally orthogonal to the longitudinal axis of the device. A spring biased retracting device continuously pulls the strip through the feed slot so that the next rivet in succession facing the rivet table is automatically drawn into axial alignment within the rivet table ready for positioning and setting into a work surface. A worm gear with eccentric output drives a connecting rod for pulling and fracturing each mandrel from the rivet body. A flywheel connected between a motor drive and the worm gear arrangement enhances mandrel pulling capacity.

Abstract: A method of operating a plurality of minerals separation flotation cells (1,2) each having a feed inlet (9,14) a values outlet (11) and a gangue outlet (12,15), and each flotation cell being located at substantially the same level. A feed box (3) is located alongside the flotation cells (1,2) which are connected in series such that the outlet (7) from the feed box (3) is connected via a first pump (8) to the feed inlet (9) of a first flotation cell (1), the gangue outlet (12) from the first flotation cell (2) is connected via a second pump (13) to the feed inlet (14) of the next flotation cell (2), and so on until all of the flotation cells are connected in series. Each flotation cell also has a recycle outlet (19) from the lower part of the flotation cell arranged to return a predetermined proportion of the material flowing through that flotation cell to the feed box (3).

Abstract: A magazine for compactly holding and feeding therefrom a quantity of blind rivets to a specially configured rivet table of a blind rivet setting device. The magazine, as part of an automatic rivet feed mechanism, contains a thin elongated strip or ribbon of flexible material holding the mandrel tips pierced through the strip evenly spaced apart. The strip is drawn from the magazine through a transverse feed slot formed through the rivet table generally orthogonal to the longitudinal axis of the device. A spring biased retracting device continuously pulls the strip through the feed slot so that the next rivet in succession facing the rivet table is automatically drawn into axial alignment within the rivet table ready for positioning and setting into a work surface.

Abstract: A tape picking device for use in threading a reel-to-reel tape drive, for picking a tape leader from a supply tape pack and automatically retracting from the tape pack upon completion of threading, without the use of electrical actuators. The device includes a an integral element that is lightly contacted by the threaded tape under tension, to pivot the picking device clear of the tape pack. The tape-contacting element may also be a tape-cleaning bar, or may be simply a tape guide, located on either side of the tape. A mechanical actuator is used to lift the picking device well clear of the tape pack for tape loading and unloading operations.

Abstract: A pencil for electrosurgical generators includes a push button switch structure useful in selectively bridging spaced printed circuit contacts in spite of oxidized film on the contact surface. A movable concave disk has a sharp peripheral edge that is forced against the contact surface during switch actuation to cut through the oxidized film and reliably bridge the contacts. The disk is carried by an axial projection forming part of a resilient dome surrounding the projection. The dome includes a radial flange which is compressed against the printed circuit board by an annular member projecting axially inwardly from the housing wall around the outside of the dome. The closed end of the dome is connected to the flange by a frusto-conical connecting wall adapted to flex to permit the closed dome end to be pushed toward the open dome end during switch actuation.

Abstract: Compositions, including hydrocarbon elastomeric block copolymers, such as styrene-ethylene-butylene-styrene and styrene-butadiene-styrene with mineral oil and essentially linear (i.e. non-cross-linked) polysiloxanes are made transparent by using polysiloxanes which are miscible with mineral oil. A preferred polysiloxane is polymethyloctyl siloxane. Transparent films, bags, tubes and other articles, especially useful in medical applications, such as catheters, blood tubes and blood bags, can be processed from the compositions.

Abstract: This invention provides tubings formed of a polymeric composition comprising a thermoplastic elastomeric hydrocarbon black copolymer and a polysiloxane having a kinematic viscosity of 20 to 10.sup.6 centistokes at room temperature, the polysiloxane constituting from about 0.1 to 12 percent by weight of the composition. The tubings can be used in medical applications.

Abstract: A sterile handle cover is disclosed for covering a lamp handle of a surgical lamp to provide a sterile surface for adjustment of the lamp by an operator. The handle cover comprises a grip portion defined by a first and a second end. An end wall is integrally attached proximate the first end of the grip portion to form a hollow container open at the second end. A protector is connected to the second end of the grip portion and extends radially outwardly for protecting the hand of the operator from contacting portions of the surgical lamp proximate the lamp handle. A plurality of ribs are disposed in the grip portion for frictionally engaging the lamp handle of the surgical lamp to maintain the position of the handle cover thereon.

Abstract: A composition of matter composed of a thermoplastic elastomeric hydrocarbon block copolymer having 0.1 to 8 percent polysiloxane, or silicone oil, uniformly distributed throughout. The composition exhibits improved surface, elasticity, and tensile strength characteristics as well as superior processibility. The block copolymer may take the form of styrene-ethylene-butylene-styrene in which the styrene blocks have a molecular weight of 5,000 to 40,000 and the ethylene-butylene block has a molecular weight of 20,000 to 500,000. Uniformly dispersed mineral oil may constitute 10 to 60 percent of the composition's total weight which may also include less than 45 percent polypropylene. Combining the copolymer with the silicone oil occurs under the influence of a pressure of 1,500 to 2,500 p.s.i. such as provided by extrusion blending. The resulting elastomeric composition may extrude in sheets as thin as 0.015, 0.010, or even 0.005 inch, which a puller may thin even further.

Abstract: An electrosurgical generator, having particular utility in surgical procedures on human joints, is provided with an output impedance in the range of 600 to 2,500 Ohms in order to efficiently transfer energy to the high impedance joint. The relatively high output impedance permits much lower power settings to be empolyed than are required by conventional electrosurgical generators so that little or no damage results in surrounding tissue. In the preferred embodiment, the output impedance range is 900 to 1,400 Ohms and is provided by an isolation transformer in which the turns ratio is selected to obtain the desired generator output impedance across the transformer secondary winding.

Abstract: A composition of matter composed of a thermoplastic elastomeric hydrocarbon block copolymer having 0.1 to 8 percent polysiloxane, or silicone oil, uniformly distributed throughout. The composition exhibits improved surface, elasticity, and tensile strength characteristics as well as superior processibility. The block copolymer may take the form of styrene-ethylene-butylene-styrene in which the styrene blocks have a molecular weight of 5,000 to 40,000 and the ethylene-butylene block has a molecular weight of 20,000 to 500,000. Uniformly dispersed mineral oil may constitute 10 to 60 percent of the composition's total weight which may also include less than 45 percent polypropylene. Combining the copolymer with the silicone oil occurs under the influence of a pressure of 1,500 to 2,500 p.s.i. such as provided by extrusion blending. The resulting elastomeric composition may extrude in sheets as thin as 0.015, 0.010, or even 0.005 inch, which a puller may thin even further.

Abstract: A multi-track magnetic recording tape and a corresponding method for providing an early warning of end-of-tape conditions and an indication of load-point conditions, without the use of inter-track markers. The recording tracks are divided into two sets located on separate halves of the tape, and the sets of tracks are longitudinally offset with respect to each other, to provide a half-width unrecordable region at each end of the tape. A tape marker is located in each of the unrecordable regions, each marker serving as a load-point marker for use with one set of tracks, and as an early-warning marker for use with the other set of tracks.

Abstract: This invention provides a composition of matter composed of a substantially uniform mixture of a thermoplastic elastomeric hydrocarbon black copolymer and 0.1 to 12 percent by weight of the composition of a polysiloxane. The composition exhibits improved surface, elasticity, and tensile strength characteristics as well as superior processibility. The block copolymer may comprise blocks of styrene-ethylene-butylene-styrene in which the styrene blocks have a molecular weight of 5,000 to 40,000 and the ethylene-butylene block has a molecular weight of 20,000 to 500,000. Mineral oil and polypropylene are preferably dispersed in the composition. Combining the copolymer with the polysiloxane typically occurs under the influence of a pressure of 1,500 to 2,500 p.s.i. or above, such as provided by extrusion blending. The resulting elastomeric composition may be extruded into sheets as thin as 0.015, 0.010, or even 0.005 inch, which a puller may thin even further.