Abstract: A method for cold forming a metallic billet into an article having divergent members with a single hit comprises depositing the billet centrally within a die cavity between a first member and a second member. The first and second members are hydraulically urged toward one another at an equivalent velocity until the divergent portions of the die cavity are filled. The forming velocity is between about 30 percent and about 60 percent of the normal forming velocity for the material comprising the billet.

Abstract: A ski boat for producing a relatively small, well-defined wake and a relatively smooth working table includes a V-shaped keel section. The angle of the "V" increases towards the stern of the hull. A chine panel is mounted at each of the outboard edges of the keel section. A secondary chine is located on each side of the keel section, being parallel to the centerline of the V-shaped keel section and following the contour of the keel section. A concave depression panel is located at the stern of the boat, extending forwardly therefrom into the keel section.

Abstract: A method and apparatus for removing metal from a metal containing solution employing an electrolytic cell by introducing a plurality of streams of the metal containing solution into the bottom region of the cell at an acute angle to the radius of a right cylindrical cathode in the cell, and withdrawing solution from the bottom region of the cell approximately at the center of the cathode. The streams of metal containing solution flows in spiral paths along the cylindrical cathode from the bottom region of the cell upwardly toward the top region of the cell to create a vortex effect. The processing by electrolytic removal of the metal on the cathode is improved by the continuous replenishment of solution along the cathode. From the top region of the cell the processed solution moves inwardly and falls toward the bottom region of the cell where it is collected into a central pool and removed from the electrolytic cell.

Abstract: An integrally formed releasable joint connector has a central bridge member with two bosses flexibly connected to the central bridge member and projecting in opposite directions from the opposite ends of the central bridge member. The two bosses are each generally cylindrical with an H-shaped transverse cross-section and are adapted to be received in and frictionally grip hollow structural members, such as tent poles, hollow frame members of a display counter, and the like.

Abstract: Apparatus is disclosed including a compact thermionic generator formed with an outer cathode cylinder and an axially concentric inner anode cylinder. The cylinders are sealed and evacuated and provided with external electrical connections leading to the cathode and anode cylinders. A thermoelectric generator formed of a folded length of thermocouples is nested within the anode cylinder with respective ends thermically and electrically coupled to the cathode and anode cylinders. Sufficient heat applied to the outer cylinder causes the thermionic emission from the cathode to anode cylinders to be enhanced by the positive potential applied to the anode cylinder from the internal thermoelectric generator which is also responsive to the applied heat to generate the positive potential relative to the potential of the cathode cylinder. A generator system is also disclosed in which a pair of these generators is interconnected by a solid state switching circuit to an output load via intermediate charging capacitors.

Abstract: A method and apparatus are provided for cold forming a metal article having varying lateral cross-sections. A hydraulically operated, longitudinally movable force applying member is adapted to apply force to a slug during formation. A die cavity is defined by a frame defining a central bore and a plurality of channels extending radially from the central bore. The central bore is coaxial with the force applying member. A plurality of die nibs, each having a first end and a second end with the first end being mounted in the central bore, are mounted in the channels. At least one of the nibs being slidably mounted within one of the channels. The second end of the slidable member is inclined and engaged by a cam bar secured to the force applying member. The sliding nib is urged toward the central bore to enclose the die cavity as the force applying member is moved to a force applying position.

Abstract: The specification discloses an adjustable fireplace adapter panel (10) for covering an opening to a fireplace and for receiving a stovepipe to utilize the fireplace and the chimney thereof as an exhaust system for a stove. The panel (10) includes a main panel (16) with an aperture (18) formed therein. Plate (20) is mounted on main panel (16) covering the aperture (18) and aperture (22) is formed in the plate (20) within a perimeter defined by aperture (18). Plate (24) is mounted on plate (20) covering aperture (22) and an aperture (26) is formed in plate (24) within a perimeter defined by aperture (22) for receiving a stovepipe.

Abstract: A deflecting member construction is disclosed for a bag having an end closure which has a filling passageway at one end of the end closure through which a bulk material is conveyed into the bag. The deflecting member has an elongated section extending into the bag from the inner end of the passageway. The section has two longitudinally extending folded under flaps and is folded back at one end.

Abstract: The passage of human urine through a bed of adsorbent material results in the adsorption from the urine of antineoplastic substances as determined by in vitro tissue culture techniques utilizing human tumor cells. The adsorbent yields two antineoplastic fractions upon sequential elution. Elution of the low-molecular weight antineoplastic fraction is accomplished by elution with cold aqueous acetone at slightly alkaline pH. Thereafter, elution of the high molecular weight antineoplastic fraction is accomplished by elution with a cold aqueous acetone-glycerol mixture at slightly alkaline pH.The antineoplastic activities of these fractions are determined by tissue culture techniques employing a variety of human neoplastic cells. Furthermore, the high molecular weight fraction, the antineoplastic urinary protein, also inhibits the progression and causes regression of certain human tumor cells implanted in the nude mouse.

Abstract: A solar energy concentrating device for concentrating the intensity of solar radiation impinging on a solar collector includes a plurality of adjacently positioned tapered solar energy passageways having solar energy reflecting walls. These tapered solar energy passageways are disposed in an arcuate array to form a solar energy concentrating device. The convex side of the concentrating device is the outer surface of the concentrating device through which solar energy enters the tapered solar energy passageways, and the concave side of the concentrating device is the inner surface of the concentrating device from which concentrated solar energy emerges from the concentrating device. A solar collector is located to the concave side of the concentrating device so that the concentrated solar energy leaving the concentrating device will impinge on the solar collector.

Abstract: A lignin product-containing binder and a process for its production are described.The lignin product consists of chlorolignin which has been treated with strong alkali (NaOH) for preferably 0.5-3 h. at 50.degree.-100.degree. C. and a pH of 10-13.5. The alkali-treated chlorolignin product can be used on its own as a binder component or, preferably, together with phenol-formaldehyde. The weight ratio phenol/lignin product is suitably from 4:1 to 1:4.

Abstract: The specification discloses a tone changer for a guitar (12) having a multiple pull actuator mechanism (14). One or more of the guitar strings are tightened in response to pulling a lever arm (22) away from the guitar (12), or by pushing the lever arm (30) towards the guitar (12), or by pulling the lever arm (26) upwardly in a rotational plane parallel to the rear side of the guitar (12). Straps (16) and (18) are connected between the lever arms (22) and (26), respectively, and are connected at their other end to the performer for selectively imparting an appropriate force on the lever arms. An extension arm (32) is connected to the lever arm (30) for engaging the performer to push the lever arm inwardly towards the guitar (12).

Abstract: Disclosed is a dental tool for obturating stripped root canals, comprising an elongated rod-like body having a shank or handle and a working portion with radially outwardly extending shoulders or flutes facing away from the shank and making an angle with the longitudinal axis of the body of about 90.degree. or less. The diameter of the shoulders or flutes may be progressively diminished from adjacent the shank toward the end of the working portion to provide a taper, and in another embodiment the shoulders are continuous and spiraled. In use, the tool may be linearly and angularly reciprocally mounted in a power operator, and may be heated for softening the obturating materials, such a gutta-percha. The reciprocation of the tool, particularly the linear reciprocation, forces the shoulders into compressive contact with the softened material and, when adequate density is attained, backs out of the root canal naturally through reverse action without specific operator effort.

Abstract: A weight lifter's belt fabricated from leather which is lined with a thin layer of foamed flexible plastic having a Shore A Durometer hardness of between about 10 and 25, the liner being attached to the inner surface of the belt by a flexible adhesive. The liner, as outlined above, provides added comfort to the wearer and effects heat retention in the back and back muscles of the wearer and enhances blood circulation in the lower back to improve lifting performances.

Abstract: A method and apparatus are provided for controlling the movement of a reciprocatory hydraulically driven element of a metal forming machine between extended and retracted positions. Two piston members, having different sized working areas are slidably mounted in two reservoirs which are in communication with one another at a location other than their respective inlets. The system provides fast and slow movement of the element utilizing a single source of pressurized hydraulic fluid.

Abstract: A system is provided for loading concrete blocks, carried on pallets, into a kiln. The kiln includes a front end wall and a rear end wall and a plurality of guideways extending from the front end wall to the rear end wall. The guideways are arranged in a grid pattern of horizontally aligned layers and vertically aligned tiers. The pallets are inserted into a selected guideway. A laterally movable main frame carries a vertically movable subframe which includes an arcuate conveyor. An elevator delivers pallets to the subframe which inserts the pallets into the selected guideway. The main frame and subframe are indexed for exact alignment with the selected guideway.

Abstract: A device for measuring lengths of yarn and the like has an elongated base member with a first fixed position post and a second movable post. The second post is moved toward and away from the first post to a preselected position for measuring lengths of yarn and the like. A complete turn of yarn encompassing both posts measures the desired length of yarn.