Abstract: A universally attachable tray assembly adapted to be secured to table edges of various configurations including on the surface thereof a set of instructions regarding a particular card game, chip recesses for storing betting chips and a drink recess. The underside of the tray is provided with an orthogonal mounting surface arranged as a rectangular strip extending transversely across the tray bottom, the rectangular strip including a plurality of vertical slots formed therein for receiving securing fixtures. The vertical slots are separated by a dimension equal to the dimension separating a plurality of screw holes and slots formed in the surfaces of an angulated mounting bracket which may thus be secured in any angular arrangement to adapt to the edge configuration of the table.

Abstract: A hand held electrically driven cutter assembly for removing casts from the body of a patient includes a vertically articulatable bottom plate insertable between the cast and the body surface which on the interior of the cutter assembly forms a switch in series with a trigger switch connected to the main power. Two circular cutters, inclined relative each other, are disposed above and ahead of the bottom plate to open up a kerf therefor. The power to the cutters is transmitted through a pulley and gear combination to be driven by an electric motor. It is this electric motor that is series connected to the bottom plate switch and power will be applied to the cutters only upon upward urging of the cutter assembly.

Abstract: A ball bushing for linear motions comprising a circumferentially extending cage member disposed between an outer sleeve and a shaft or the like. The outer sleeve is characterized by a novel structural arrangement providing ease in mounting. The outer sleeve is a self-contained unit which is easy to handle and suitable for mounting in housings in a manner allowing prestressing of the bushing. The cage has a plurality of circumferentially spaced axially oriented grooves which define closed paths for the rolling elements and includes at least one path in which the rolling elements are loaded. The cage also has at one axial end a projection defining an abutment shoulder for the sleeve. The sleeve comprises a plurality of longitudinal sections of a predetermined length to overlie the grooves in the cage. Adjacent the sections have complementary grooves and ridges formed therein permitting assembly by relative axial displacement to form a closed sleeve encircling the cage.

Abstract: A lamp includes a light source having a center and a light diffuser disc having two opposite faces and supported at a distance from the light source. One face of the light diffuser disc is provided with a prism structure which is symmetrical with respect to a normal that passes through the center of the light source and that is perpendicular to the faces of the light diffuser disc. The prism structure is formed of a plurality of prisms extending parallel to one another; each prism has a frontal flank oriented towards the normal and a rear flank oriented away from the normal. The angle of inclination of the frontal flanks gradually decreases from prism to prism in a direction away from the normal, while the angle of inclination of the rear flanks gradually increases at a decreasing rate, from prism to prism towards an upper limit value in a direction away from the normal.

Abstract: A steel powder suited for powder metallurgical purposes consists of an amorphous to compact-grained, essentially dendrite-free material with irregularly cornered particle shape. Such a steel powder may be produced by causing molten steel to form at least one discrete, relatively thin film on a relatively cold metal surface of great cooling capacity, causing the thin film to solidify extremely rapidly on the metal surface to form a brittle amorphous to compact-grained, in principle completely dendrite-free steel film, and crushing or grinding the brittle film into a powder of an irregularly cornered particle shape.

Abstract: A steel flake product, suitable for being crushed or ground to form a steel powder for powder metallurgical purposes, consists of a plurality of relatively thin, brittle and easily crushed, substantially dendrite-free steel flakes of amorphous to compact-grained structure. Such steel flakes are produced by causing molten steel to form at least one discrete, relatively thin flake-shaped layer on a relatively cold metal surface of great cooling capacity, moving rapidly and substantially across the direction of delivery of the molten steel. Due to the great cooling capacity the layer is made to solidify extremely rapidly.

Abstract: A ball bushing comprising a sleeve, a cage, inside the sleeve adapted to be mounted on a shaft member or the like. The ball bushing has formed therein a number of closed ball paths, the balls being loaded between the sleeve and the shaft in a section or zone of each ball path. The sleeve has a number of longitudinal profiles countersunk in relation to a circle circumscribing the sleeve. The profiles define internal raceways for the loaded balls. The sleeve is also characterized by a generally uniform or constant cross sectional shape along its entire length.

Abstract: An improved reinforcing material for concrete and comprising a multitude of relatively short and substantially straight steel flakes. The steel flakes are of a shape tapering towards the ends of the flakes, and they have a thickness of about 0.1 mm to about 0.5 mm, a maximum width of at least about ten times the thickness, but at least about 2 mm, and a length of at least about 100 times the thickness. They are intended to be uniformly distributed and in principle randomly orientated in the concrete. The most preferred dimensions are: thickness 0.1 to 0.2 mm, maximum width 4 to 6 mm, and length 20 to 80 mm.

Abstract: A power driven shaver of the type that includes a housing that has a prime mover therein, with one end of the housing supporting a transverse thin curved shield. The shield has a number of longitudinally and circumferentially spaced slots therein that are of such dimension that whiskers may extend therethrough. A number of helical shaped blades are rotated by the prime mover in close proximity to the interior surface of the shield, with the blades serving to sever inwardly projecting portions of the whisker by a rotating slicing action. The present power driven shaver is free of vibration, and exerts no uncomfortable pulling action on whiskers as they are severed, or the whiskers as they are cut are not compressed or pinched.

Abstract: An improved reinforcing material for concrete is manufactured by causing molten steel to impinge upon a relatively cold metal surface of great cooling capacity, moving rapidly substantially across the direction of delivery of the molten steel, to form at least one discrete relatively thin flake-shaped layer of molten steel on the metal surface, causing the layer to solidify on said metal surface to form a steel flake, and mutually adjusting the parameters which determine the shape and the dimensions of the steel flakes so as to give the flakes a shape tapering towards the ends of the flake and a thickness of about 0.1 mm to about 0.5 mm, a maximum width of at least about ten times the thickness but at least about 2 mm, and a length of at least about 100 times the thickness.

Abstract: A device for transforming a reciprocating linear movement into a rotary movement comprising a first member adapted for reciprocating axial movement relative to a turnable second member, means for displacing said reciprocating first member in opposite linear directions, at least a pair of annular sleeves disposed in a space between said first and second members, each sleeve having a frustoconical tapered surface confronting and adapted for torque transmitting engagement with a corresponding tapered surface on one of said members, the surface of each sleeve opposite the frustoconical surface confronting a surface of the other one of said members and guide means including at least one helical groove in one of said confronting surfaces and a guide element engageable in said grooves, actuation of said one member linearly in one axial direction causing engagement with the frustoconical surface of one sleeve to prevent turning relative to said one member and through said guide means rotation of said other member, ac

Abstract: A coupling for transmitting torque between at least a pair of rotatable members, said members having spaced apart, complementary peripheral surface portions of non-circular cross section, coupling means comprised of elastomer and metal layers and consisting of at least two sections in abutting side by side relation, one surface portion of said coupling means abutting the peripheral surface portion of one of said members and another surface portion of said coupling means abutting the peripheral surface portion of said other member whereby rotation of one member effects through said coupling means rotation of said other member.

Abstract: The pant or body portion of a pair of tights or panty hose is produced on a dual-cylinder knitting machine using oscillatory motion of the two cylinders. Subsequently the leg portions of the tights are produced using continuous motion of the two cylinders, one leg portion being formed within the other leg portion.

Abstract: A manual steering wheel or the like is connected through a rotatable flexible cable and a double-acting free wheeling clutch to a rotatable element controlling the position of a steering member such as a boat's rudder. A servo motor is also connected through the clutch to the rotatable element, and starting, stopping, and the direction of operation of the motor are controlled by electric pole changing spring contacts associated with the wheel. The connection of the steering wheel to the rotatable element is directly through the free wheel element of the clutch, while the servo motor is connected to the rotatable element through the other rotary element of the clutch. This permits the servo motor normally to drive the rudder in response to steering wheel motion, but direct manual steering is enabled should the servo motor operate too slowly or not at all.

Abstract: A control unit and dispensers for a gasoline station providing for prepayment at a single control of fuel dispensing at each of a plurality of dispensers, and automatic payout of change whenever a customer does not take all of the gasoline paid for. A control unit for introducing credits into a selected dispenser and removing credits from the dispenser (i.e., debiting the selected dispenser), and recording credits and debits.

Abstract: A device for use in maintaining that portion of a poster between upper and lower edge portions thereof in a flat configuration. First and second rigid frame piece assemblies removably engage upper and lower horizontal edge portions of the poster and are disposed to the rear thereof. First end portions of first and second elongate members engage the first and second frame assemblies with the elongate members situated to the rear of the poster, and with the elongate members being of sufficient length that the second end portions thereof overlap. The overlapping second end portions are frictionally and adjustably engaged by holding means to permit the device to be moved from a first to a second position, and when the poster device is in the second position, that portion thereof between the first and second end portions is slightly tensioned and disposed in a flat configuration whereby the poster and the device may be suspended from a wall by a conventional picture hanger.

Abstract: A ball bushing which comprises a sleeve and a shaft, and balls arranged therebetween. The balls are guided in a cage and, between the sleeve and shaft there are arranged load-carrying strips for the balls, characterized in that the sleeve of the ball bushing is shaped with a number of preferably circular envelope surface extending ridges showing a continuous cross-section basic profile. The interior of the sleeve is of polygon shape and in the middle of the polygon surfaces there are the apertures provided with a bottom intended to receive load-carrying strips for the balls in the loaded zone and also intended to center the cage element which in a corresponding manner is of polygon shape.

Abstract: A table tennis assembly including a table having a flat upper surface, a transversely disposed net that divides the surface into two playing areas, a ball, and a pair of paddles that include ball striking surface that is characterized by at least the periphery of the flat upper surface, the net, the ball and the striking surfaces of the paddles having a fluorescent material thereon. The fluorescent material is selected from a group that comprises organic compounds, dyes, and inorganic compounds that emit light visible to the human eye when exposed to electromagnetic radiation in the infra-red or ultra-violet range. When the assembly that includes the fluorescent material is exposed to radiation to which the fluorescent material is responsive, the table, net, ball and paddles are illuminated to the extent that table tennis may be played in the dark.

Abstract: Sponge iron is produced by a process including a charging step during which an iron oxide is arranged as a stationary bed in a furnace chamber, a heating step during which a hot, preferably non-reducing atmosphere is cased to flow through the stationary bed, and a reduction step during which a hot reducing atmosphere is caused to flow through the stationary bed to reduce the iron oxide to sponge iron. Optionally, there is a final cooling step during which cold non-oxidizing atmosphere cools the sponge iron. The relatively hot atmosphere which has just passed through the stationary bed is counter-currently heat exchanged with the relatively cool fresh atmosphere about to enter the furnace chamber.

Abstract: A ball bush unit, comprising a number of ball races with balls, a holder for the balls and a casing surrounding essentially the holder and the balls, the casing and the holder showing a longitudinal slot, with the characteristic that for tightening the bush against the axle an arched washer provided with a screw is arranged on at least one side of the slot.