Abstract: An articulated gliding ring is provided in which a plurality of elongated members, which may be curved or straight, are pivotally joined to form a closed ring of circular or polyhedric contour, each of the elongated members having, throughout the major portion of its length an airfoil contour. The articulated structure permits the gliding ring to be projected by back-hand delivery of the open ring, or over-hand delivery of the elongated ring grasped at one folded joint; and has the further advantage of permitting the ring to be folded to compact, pocket size for storage and transport. The most compact folding is made possible by disconnecting one of the pivot joints, and by employing straight rather than curved elongated members.

Abstract: An ice skateboard comprising an elongated platform having secured to the front and rear portions of the underside conventional skateboard trucks, with transverse axles supported by a structure facilitating slight controllable swinging movement of the axle in response to the shifting of weight on the platform, wherein each of the front and rear axles rotatably supports at opposed ends thereof elongated skate blade mounting units in a manner to be parallel to the center line of the platform, and each of the mounting units bearing a skate blade protruding in a direction away from the platform, the exposed edge of each blade having a front to rear contour of slightly convex curvature and a transverse contour of markedly concave curvature providing closely spaced ice gripping edges, and the mounting units for said blades being so fashioned as to provide a cant to the blades of at least 5.degree., thereby convergently orientating the mounted blades.

Abstract: A resilient safety extension is provided for highway barriers of the type having a broad base and upstanding central portion with opposed convergently tapered surfaces and a length which is infinitely variable, in the form of an elongated resilient member having an inverted generally U-shaped transverse configuration provided by a top portion and spaced downwardly extending portions adapted to straddle the upstanding portion of the highway barrier, the downwardly extending portions being convergently tapered to provide inner surfaces closely interfitting with the upstanding portion of the barrier and outer surfaces which are slightly divergent in the direction of the top portion, and the thickness of the downwardly extending portions being variable by amounts of the order of 2 inches to provide sinusoidally curved outer surface patterns, repeating at approximately 24" intervals longitudinally of the safety extension.

Abstract: A shock-absorbing and motorist warning highway barrier is provided comprising a plurality of elongated upstanding units adapted to be joined in end to end relation, each unit comprising an outwardly flared base and an upstanding central portion having interfitting protrusions at opposed ends thereof facilitating end to end coupling of adjacent units, opposed side surfaces of the upstanding portion having a plurality of transversely aligned and longitudinally spaced recesses to receive resilient cylindrical members in a manner to protrude substantially from such surfaces, the cylindrical members being insertable and removable through the top of the unit and being secured in place by a cover member having downward protrusions interfitting with the aligned recesses in said unit. In preferred adaptations each unit may have a sinusoidal contour in the longitudinal dimension incorporating two sine curves, and/or the recesses and cylindrical members mounted therein may be outwardly inclined about 5.degree. to 10.

Abstract: A unitary, essentially cylindrical, rigid closed ring member is provided for use with pneumatic tires having spaced mounting beads at the inner diameter for engagement with edge flanges of a circumferentially divided two-part wheel rim, the wheel rim providing an essentially flat central bearing surface joining the flanges in bead receiving portions which may be angled 5.degree. or 15.degree.

Abstract: A sectional shock-absorbing and motorist warning highway barrier is provided in the form of multi-component sections about four feet in length, and adapted to be joined together in end-to-end relation to form a continuous barrier, each section being made up of four vertically aligned horizontal components, providing a top component, and two mid-components of uniform thickness, and a flared bottom component, such components having offsets at opposed ends thereof for aligning successive sections with such offsets having transverse apertures for receiving bolts in securing together successive sections, abutting surfaces of the horizontal components having aligned offsets of semi-spherical contour to receive spherical plastic bumper members protrudingly and rotatably supported in the assembled section. The horizontal components are fashioned from concrete, suitably encased in plastic shells, and the spherical plastic bumper members may be either air filled, or filled with water or sand for added weight.

Abstract: A corticotomy osteotome is provided comprising an elongated body having a cutting end and an anvil end adapted for engagement with a mallet in advancing the cutting end, wherein the cutting end is of T-shaped cross-sectional form with the cross head of the T providing bearing surfaces for engaging outer surfaces of the bone cortex, and a rib extending perpendicularly and centrally of the bearing surfaces which protrudes from the bearing surfaces a distance approximately equivalent to the thickness of the bone cortex, the rib terminating in a tapered cutting edge extending perpendicularly to the bearing surfaces and being spaced inwardly from the leading edge of such bearing surfaces, and the upper surfaces of the body being smoothly rounded and tapered in the direction of the leading edge of the bearing surfaces permitting the leading edge to lift the periosteum from the bone cortex and support it in spaced relation to the cortex as the osteotome is advanced to cut the cortex, and the anvil end being engagabl

Abstract: An improved rain gauge in which a large rain collector feeds collected rain into a receptacle having 1/5 the cross-sectional area, and in which a float and counterweight connected by a flexible strand passing over a pulley mechanism creates electrical impulses with each 1/100 inch of rainfall added to the receptacle, and in which the receptacle is periodically emptied by a syphon device of generally U-shaped contour providing intake leg and discharge leg, wherein complete emptying of the syphon tube is facilitated by incorporating within the discharge leg thereof a small diameter tube closed at the top end, open at the bottom end, and having a plurality of small holes spaced longitudinally thereof, whereby air entering the small tube and passing through the longitudinally spaced holes therein, serves to equalize air pressure and permit the full discharge of liquid from the syphon tube.

Abstract: A football kicking practice device comprising similar frame parts joined by a front top transverse member to be disposed in parallel vertical orientation, with such frame parts including horizontal rearwardly extending portions joining vertical downwardly extending portions, in turn joining downwardly inclined portions extending to a point of vertical alignment with the top transverse member, and further joining downwardly extending vertical portions terminating with structure at the lower ends for supporting the frame in vertical orientation, and a large rectangular net with a peripheral sleeve along three sides thereof slidably engagable with the frame structure, whereby the net as assembled to the frame hangs in a manner to provide a forwardly and downwardly bulged upper portion, blending with a lower hanging and forwardly inclined trough portion.

Abstract: A collapsible mixing drum is provided in which two similarly contoured, frustoconical members, one of which is open and the other closed at the small end, and both of which are provided with a plurality of circumferentially spaced and inwardly offset stiffening and mixing ribs, terminating in radial wall portions at the large ends of the frustoconical members, the radial wall portions having aligned apertures to receive axially oriented fasteners, are detachably joined together through clamping engagement with an annular ring member having on opposed radial surfaces thereof aligned grooves for sealably receiving circumferential edges of the large ends of the frustoconical members, and the outer surface of the ring member being contoured to provide a circumferential groove, gear teeth, or a combination thereof to facilitate rotational support and/or rotational driving of the assembled drum.

Abstract: A manually operated portable mixing device is provided in which a frame of knockdown construction provides means for rotatably supporting a mixing drum of centrally expanded cylindrical contour in a manner to dispose the drum axis at an angle of about 20 degrees with respect to a support surface, the drum having a large circular opening at one end and being closed at the opposed end, roller means at the rear of the frame engaging an annular groove on an axially protruding bearing member at the closed end of the drum, roller means at the front of the frame engaging outer surfaces of the drum adjacent the open end thereof, a three-sided frame extension of a size to be closely spaced from the periphery of the rotatably supported open drum end, the lower rear portion of the frame detachably supporting wheels in a manner to be slightly elevated with respect to a support surface, and the drum at the centrally expanded portion thereof, having four detachably mounted and radially extended hand-grip members at 90.

Abstract: An aqueous, non-alkaline, foamable bathroom cleaner that is particularly effective in removing lime soap residues and hard water salt deposits from sinks, bathtubs, shower enclosures and metal surfaces, and in maintaining toilet bowls clean when incrementally added to the flush water, comprising:1. One to 30 percent by weight of an alkyl or alkylethoxy sulfate,2. One to 15 percent by weight of a long chain alkyl diethanolamide,3. One to 40 percent by weight of a short chain alkylbenzene sulfonate,4. Two to 30 percent by weight of nitrilotriacetate or amineacetate,5. 0 to 12 percent by weight of a conventional nonionic to anionic sulfonate surfactant,6. 55 to 90 percent by weight of water, and7. Mineral acid (sulfuric or hydrochloric) to adjust the pH within the range of pH 3-7.

Abstract: A hand-operated mixing device is provided in which a mixing drum, having an open end, a closed end and divergently tapered circumferential walls extending from the ends to an enlarged diameter portion intermediate the ends, an annular groove at the outer periphery of the enlarged diameter portion, and the closed end having a detachably mounted crank member terminating in a bearing shaft coaxial with the drum axis, the drum being detachably mounted on a light-weight frame having at the forward portion thereof transversely spaced rollers for engagement with the annular groove, and at the rear portion thereof a bearing orifice detachably receiving the bearing shaft of the crank handle, the positioning of the rollers and bearing orifice being such as to orient the drum axis at an angle of about 10-20" to the horizontal to thereby elevate the open end of the drum, the light-weight frame being of knockdown construction having parts of such dimension as to permit packing when disassembled in a container adapted to c

Abstract: An improved drain shield for eave gutters is provided in the form of screen sections adapted to be assembled in end-to-end relation along an eave gutter, such sections being of a width to overlie the gutter and first course of shingles and to extend under the second course of shingles for mounting purposes, such screen sections being formed of woven wire screening suitably having aligned square openings measuring approximately 1/4-inch on the side, each screen section being deformed intermediate its front and rear edges and at a location to align with approximately the middle one third of the first course of shingles to dispose one line of said square openings perpendicular to the plane of the screen section, the portion of the screen section overlying the gutter thereby being raised approximately 1/4-inch above the mounting portion, the perpendicularly disposed line of openings providing means for diverting water into the gutter while causing leaves and other debris to be carried over and discharged beyond t

Abstract: A sailboarding equipment vehicle is provided in the form of a rackcart comprising an upstanding frame elongated at the base in a forward to rearward direction with spaced wheels at the forward end and a kick stand at the rear end of the base, the upstanding portion of the frame being offset slightly from the vertical to provide inclined support for a sailboard having a center edge portion resting on the base of the frame, the upper portion of the frame having an elongated tubular part supporting a longer rotatable member extending front to rear of the frame with a hand grip portion protruding from the rear of the frame, clamp member joined to the rotatable member at portions thereof externally of the tubular part protruding from the board side of the frame having a downwardly offset portion providing a board clamp in one position of rotation thereof, the rotatable member being releasably secured in different positions of rotatable adjustment, outer extremities of the board clamp member providing hook portions

Abstract: A tennis game and training apparatus comprising a pair of relatively low tables adjustably spaced from a substantially higher and wider net structure to form an assemblage which provides, on a small scale, playing surfaces generally proportional to playing surfaces of a regulation tennis court, whereby side and underhand ball stroking in use of the apparatus affords practice and training for playing on a regulation court. A typical apparatus incorporates a unique net structure 36-inches high and 18-inches deep, and two tables measuring 6-feet in width, 4-feet in depth and 21-inches in height, adjustably spaced from the net structure to dispose remote table edges approximately 12 to 17-feet apart. Each table surface is divided transversely into three equal size playing areas, with the central playing area being added respectively to the left and right playing areas for designating the left and right service courts.

Abstract: D-Limonene-based aqueous cleaning compositions for hard and/or flexible substrates are provided wherein the normally water-immiscible d-limonene is stabilized in clear aqueous solution by the combined effect of carefully selected and proportioned surface active agents, and a coupling agent, suitably in the form of a glycol or a lower alkyl glycol ether. One or more surfactants can be employed with a glycol or glycol ether as the coupling agent. Preferred formulations contain selected anionic, nonionic, or mixed anionic-nonionic surfactants. The compositions can also contain small amounts of additives adapting the compositions to particular uses. The new cleaning compositions contain by weight, 78 to 96 parts of a d-limonene/surfactant/water mixture containing 10-60% d-limonene, 10-30% surfactant, and 20-70% water, coupling agent in the amount of 2-10 parts by weight, and 2-12 parts of additives adapting the compositions to particular uses.

Abstract: A combination sling and therapy device is provided in the form of an elongated tubular member of pliable material, open at one end and closed at the other end, and having a slit portion extending throughout the major portion of its length incorporating adjustable fastener means whereby the tubular member can closely envelop an arm and cast assemblage from a point adjacent the fingers to at least the elbow of the user, an elongated band member having opposed ends engaging spaced portions of the tubular member, said band member being of a length to extend over the shoulder of a user and having adjustable means for providing the desired angular support for the forearm and cast, the closed end of said tubular member having a puppet-like characterization in which protruding movable lip portions are positioned to receive the thumb and fingers of the user, and at least for encouraging periodic manipulation of the thumb and fingers.

Abstract: A pet litter collecting device is provided as a two part receptacle holder and scoop assemblage, said receptacle holder comprising an elongated tubular handle having at one end a fixedly mounted coplanar triangular frame with the remote side of the triangular frame being perpendicular to the axis of said tubular handle, the dimensions of said triangular frame being such as to correspond with the perimeter of the open end of standard plastic sandwich bags whereby folding over the bag edge can securely envelope said frame, hook means at the juncture of said frame and handle for tensionally anchoring a bag edge in engagement with said frame, said scoop comprising an elongated hand grip portion telescopically and detachably fitting within said tubular handle and having at one end thereof a detachable scoop element, with an operative portion disposed perpendicularly to the hand grip member at one side of the axis thereof, the width of said operative portion being somewhat greater than its height and less than the

Abstract: A support device is provided for nursing bottles and young child amusement items comprising a body encircling, resilient and adjustable strap having secured to a center, front portion thereof one end of a pliable, but non-extendible, band member approximately 9-inches long, the other end of said band member being fixedly secured to one side of a frustoconically contoured elastic loop member adapted to interlockingly engage the neck portion of nursing bottles and undercut portions of amusement devices.The body encircling strap has free ends joined at the back of the wearer by a "Velcro" fastener or other adjustable fastener means permitting easy under-the-arm or over-the-shoulder attachment to, or detachment from, a young child; and the elasticity of the frustoconical elastic loop member permits easy adult attachment to, and detachment from, nursing bottles and appropriate child amusement items.