Abstract: A safety system for overhead hoisting cranes is provided which incorporates a overload release coupling in the high speed drive shaft between the prime mover and the gear reducers driving one or more hoist drums with a dual reeving and a safety brake acting on the high speed drive shaft at the gear reducers and controlled by an overrunning clutch and a control means.

Abstract: A surgical blood vessel holding device is described having shank means in a middle region with a holder on one end and a narrow prong on the other end. The prong is provided with a hook extending laterally from the side thereof. The prong is adapted to be inserted into the open end of a blood vessel until the hook reaches the distal end of the vessel. The hook then pierces the vessel wall, allowing the device to dispose the end of blood vessel in facing relationship with respect to an opening in the wall of another blood vessel. The blood vessel can be locked onto the hook. Thereupon, suturing of the vessels is initiated, but not completed. The prong is then unhooked and removed and the suturing process is completed without the device to provide a continuous blood flow path between the two blood vessels.

Abstract: A rigid frame supported resistor for dynamic braking of electric and diesel-electric locomotives has certain of the frame elements cushioned or insulated from each other and the resistance ribbon insulated and cushioned from the frame. Organic insulating material in molded or sheet form, preferably a copolymer, such as a polyester resin, protected by a metal heat shield, may be used for structural frame members, or for cushioning and insulating metal structural frame members. The organic insulating resistant is supplemented by ceramic insulating material in locations subject to high heat.

Abstract: The service life of torches used for water injection plasma arc cutting and like water cooled devices is increased by treating cooling and injection water of high dissolved solids content so as to lower the dissolved solids content of the water until its Ryznar Stability Index is in the range of about 5.5 to about 7.5.

Abstract: The invention relates to a whippable, non-homogenized cream having a fat content of 20 to 30% by weight and a pH of 6.2 to 6.5, which contains0.2 to 0.4% by weight of at least one emulsifying agent consisting of a mixture of distilled monoglycerides in a carrier, wherein the weight ratio of saturated fatty acids to unsaturated fatty acids in the fatty acid ester is between 80:20 and 20:80,0.2 to 0.4% by weight of at least one binder based on starch, as well as0.03 to 0.06% by weight of carragheenate as a stabilizer, and to a method wherein at least one of said emulsifying agent, said binder, said carragheenate and at least one organic and physiologically acceptable acid are dispersed in milk and the amount of non-homogenized cream required to achieve the desired fat content in the final product.

Abstract: A vehicle wheel having claws which automatically extend whenever the wheel strikes an obstacle and automatically retract when the obstacle is overcome is disclosed. The wheel also includes a ratchet type clutch mechanism which permits the wheel to be manually turned while the wheel drive shaft is fixed, thereby preventing damage. The wheel includes a spindle having at least one claw pivotally attached to the spindle. A wheel body is fitted over the spindle having one aperture for each claw attached to its front face and a circle of teeth on its back face. A hub having at least one radially extending arm is attached to the shaft or axle which turns the wheel. A tooth is provided on each arm to engage the teeth on the spindle. A wheel body is fitted over the spindle having one aperture for each claw attached to the spindle which apertures are sized and positioned so that a claw may pass through the aperture when the spindle is rotated relative to the body.

Abstract: The device comprises a plurality of elongated filamentary loops extending outwardly from a central column in one or more tiers, the filaments having hooks backed by offset barriers at their free ends. The column is preferably hollow. The device is inserted into a passageway such as a vein with the loops held back toward the column and biased to open when released, and hook into the vein wall to form a network or web to engage and hold blood clots in the vein. The device anchors itself in place without injury to the wall of the passageway. It is self-centering and self-cleaning. Preferably the device is inserted over a wire guide threaded through the column and introduced into the vein through a hollow needle puncture.

Abstract: An electrical connector block is provided having a housing with a pair of generally parallel sidewalls extending from a base member and separated by a trough open on the side opposite the base member, a groove on each sidewall opposite the trough and spaced from the open side of the trough, a cap member having depending arms adapted to slide along the sides of the parallel sidewalls over the open trough, said arms having inturned flanges engaged in the grooves of the sidewall, at least one screw member threadingly engaged in said cap member and carry a clamp member pivoted on the end thereof between the sidewalls for clamping a wire between the clamp member and base member.

Abstract: A safety device for overhead garage and like door structures having a counterbalance spring structure including a coil spring which includes a safety cable extending through the open center of the coil spring and adjustably anchored at each end to the garage structure so as to be placed under sufficient tension to contain the spring against substantial horizontal or vertical movement in the event of breakage.

Abstract: A power control device for an adjustable hydrostatic pump with a lever controlling a control valve piston and a pressure measuring piston loaded with feed pressure acting on said lever to control the pressure feed to a servo piston is provided wherein the pressure measuring piston loaded with feed pressure is mounted in a structural member slidable with the servo piston and slides lengthwise of the lever and the control valve piston is biased by resilient member toward the pressure measuring piston.

Abstract: Bulk materials containing volatile constituents are calcined in a two-stage process comprising a first heating stage at de-volatilizing temperature but below calcining temperature during which the material is turned over and mixed to accelerate its bulk heating rate without substantially accelerating local heating rate. The first heating stage is followed by a second heating stage at calcining temperature. A rotary hearth furnace adapted for the above process is divided into outer and inner connecting annular heating zones and has rabble means for turning over and mixing the charge in the outer zone and rabble means for transporting the charge through both zones.

Abstract: A hydraulic fluid seal, a pressure plate and gear pump are provided in which two spaced adjacent surfaces are sealed, one surface having a groove opening toward the other surface, a sealing member adapted to fit in said groove and a plastically deformable interference member in the sealing member having a section such that it will plastically deform before the seal surface of the sealing member.

Abstract: A hydraulic arrangement with a pressure medium source and at least two consumers connected to it is provided in which the sum of the streams consumed by the consumers can be greater than the maximum delivery stream of the pressure medium source, where one of the consumers is preferred and receives the full stream required by means of a special device and a second consumer is connected to a multiway valve that is controlled by control pressure, whereby, in order to arrive at a small cost-favorable multiway valve, the multiway valve in the device that causes the preference of the consumer is located between a low-pressure medium source and the control pressure chamber of an additional multiway valve that is hydraulically controlled against spring force and is installed in front of the second consumer, and that the spring-side control pressure chamber of this multiway valve is acted upon by the pressure in the control pressure line and the opposite control pressure chamber of this multiway valve is acted upon wi

Abstract: Metal powder of the desired composition having a particle size of -80 mesh is charged into an extrusion container, preferably a piece of carbon steel pipe, in successive layers about two inches thick. Each layer is compacted after deposition by a high energy rate forming ram so as to raise the tap density of the powder to about 80% of theoretical. An inner cover plate is then placed loosely on the compacted powder in the extrusion container, and is not attached to the container shell. On top of this inner plate is placed an outer cover plate which is welded to the container shell. Both plates are also of carbon steel, but are much thicker than the container wall. The container so prepared is heated in a heating furnace to a temperature below the melting temperature of the container and the powder alloy thus raising the density of the powder to about 90-93% of theoretical.

Abstract: A high pressure low volume grease pump is provided having a pump and a surrounding distributor adapted for sequentially distributing grease to a plurality of outlets and a reservoir delivering grease to the pump and receiving grease from any outlet not connected to a gland.

Abstract: A control drive is provided for the drive of a vehicle, whose steering is effected by a differential driving of the drive wheels of the two sides of the vehicle, where the drive wheels of each vehicle side are driven through a hydrostatic drive unit, whose final control element is connected with a servo piston capable of sliding in an operating cylinder and is acted upon from both sides, in which case the servo piston is acted upon from one side for controlling the travel speed and the control pressure determining the travel speed is reduced for effecting a turn on one side of the vehicle for large turning radii, and for smaller turning radii a pressure is additionally built up on the opposite side of the servo piston, the said pressure being derived from the control pressure determining the travel speed on the other side of the vehicle.

Abstract: An electric conductor suitable for use in an overhead electrical and optical transmission system comprises a layer or layers of helically wound wires, at least one elongate compartment within and extending throughout the length of the conductor and, loosely housed in the elongate compartment, at least one optical fibre ribbon structure comprising a plurality of optical fibres and flexible elongate reinforcing elements of resilient material arranged side by side and embedded in an elongate body of plastics material, each resilient reinforcing element being set in such a form that the ribbon structure follows a path of smoothly curved undulations whose axes of curvature lie parallel to one another and normal to the longitudinal axis of the ribbon structure.

Abstract: An optical fibre ribbon structure suitable for use in an optical cable or other application where there is a risk that optical fibres will be subjected to a tensile force comprises a plurality of optical fibres and flexible reinforcing elements of resilient material arranged side by side and embedded in an elongate plastics body. Each resilient reinforcing element is set in such a form that the ribbon structure follows a path of smoothly curved undulations whose axes of curvature lie parallel to one another and normal to the longitudinal axis of the ribbon structure. When the undulting ribbon stucture is subjected to a tensile force, the ribbon structure straightens in a lengthwise direction against the action of the resilient reinforcing elements thereby reducing the tensile force otherwise applied to the optical fibres. When the tensile force is removed, the ribbon structure returns towards its original undulating form.