Abstract: A solid-phase immunoassay support is provided by treating a test tube liner such as a preformed soft gelatin capsule half with a coupling solution comprising a fixative, a bifunctional coupling agent and a bioactive protein which selectively reacts with the substance which is the subject of the immunoassay. The support is particularly applicable to the radioimmunoassay (RIA) technique for determining the presence and concentration of minute amounts of protein antigens in biological fluid samples and can be readily inserted in an appropriately sized test-tube for easy and quick assays.

Abstract: The invention provides that in inserting a resin impregnated liner into a pipeline or passageway and shaping same to the passageway surface, followed by curing of the resin to form a rigid lining inside the pipeline or passageway, there are placed in the passageway reinforcing circumferential coils or members which bond to the liner and provide extra resistance to compressive hoop stress.

Abstract: An invalid device comprises four vertically disposed support legs, each support leg including a pair of adjustable inner and outer telescoping leg portions; at least one cross member extending between the vertically disposed support legs; and at least one clamp for connecting each end of the cross members to the vertically disposed support legs, each clamp including a first section having a bore extending entirely therethrough for receiving the outer telescoping leg portion of a support leg and a slit extending therealong for connecting the exterior of the first section with the bore, two flange members connected along the first section on opposite sides of the slit for receiving at least one cross member, and each flange member including a through aperture such that a bolt, rivet or the like extending through the cross member and the through apertures will bias the flange members toward each other so as to fixedly retain the at least one cross member between the flange members and so as to compress the first

Abstract: A scraper and scrubber includes a hollow, elongated cylindrical body having an outer surface; a plurality of parallel, circumferentially spaced, V-shaped channels having a first depth extending in the longitudinal direction on the outer surface to form a plurality of parallel, circumferentially spaced ridges extending in the longitudinal direction on the outer surface between adjacent channels; a plurality of V-shaped helical grooves having a second, smaller depth extending at an acute angle to the channels and intersecting the ridges to form pointed, substantially pyramid shaped structures on the ridges, the substantially pyramid shaped structures formed on each ridge being offset with respect to the substantially pyramid shaped structures formed on adjacent ridges.

Abstract: An irrigating cannula fittable to a connecting pipe at the forward end of a handpiece and adapted to extract the lens nucleus for use in extracapsular cataract extraction, wherein a small-diameter tube extending from a fitting is provided with a flat insertion piece projecting laterally from the forward end of the tube and having a flow outlet which is open at the forward end of the piece and communicates with the channel of the tube, and a restraining piece extends from the connection of the base end of the insertion piece to the tube in a direction opposite to the insertion piece.

Abstract: An arrangement of interlocking telescoping members, having particular applicability with invalid devices, such as walking canes, foldable walkers and the like, includes an outer telescoping member having a plurality of longitudinally arranged apertures; an inner telescoping member telescopically received within the outer telescoping member, the inner telescoping member including a single aperture; a push button extending outwardly through the aperture of the inner telescoping member for engagement with one of the longitudinally arranged apertures of the outer telescoping member; a spring disposed within the inner telescoping member and secured to the push button for outwardly biasing the push button through the aperture of the inner telescoping member; and a plastic, resilient sleeve snuggly surrounding the outer telescoping member at least about the longitudinally arranged apertures so as to provide a pinch free adjustment, to prevent rattle between the telescoping members, and with the sleeve being capable

Abstract: A tissue paper box includes a plurality of side walls, a bottom wall and a top wall which define an enclosure for containing tissue papers; the top wall being cut-away to define a paper outlet through which the tissue papers can be removed; the side walls being collapsible to provide the tissue paper box in compact form after at least some of the tissue papers are removed therefrom; and at least one elastic strip secured to interior surfaces of the walls of the box for biasing the tissue papers toward the paper outlet, the at least one elastic strip being at least partly removable through the paper outlet when all of the tissue papers are removed from the box, to be wrapped around the box so as to maintain the box in the collapsed, compact form.

Abstract: An ice cream sandwich machine includes a nozzle having a discharge end from which ice cream is extruded; a wafer infeed and delivery assembly cooperating with said nozzle and comprising a pair of wafer trays for feeding wafers against opposite sides of the extruded ice cream and paired, vertically reciprocable wafer pusher blade means cooperating therewith to urge corresponding pairs of said wafers downward for applications to the extruded ice cream bar; an index wheel positioned below the nozzle and having a plurality of pockets therein for receiving the wafers and the ice cream in the assembled form of a sandwich; and a wafer agitator assembly including wafer impact arms for periodically impacting the wafers in the wafer trays, and control arms fixedly connected with respect to the wafer impact arms for controlling the periodicity and impact force of the wafer impact arms of the wafers in the wafer trays in response to periodic movement of the pusher blade means.

Abstract: A surgical finger assembly for control of bleeding of a lacerated blood vessel comprises a finger tip member prepared from pliant material and having a first pliant major surface dimensioned to conform to substantially the entire lacerated area of said blood vessel in a continuous compressive manner and a second opposite major surface; and an elongated handle defining at one end thereof a support section for attachment to the finger tip member at the second major surface, and the remainder of the handle defining a handle section for manipulating the said surgical finger assembly.

Abstract: An improved combined weighing apparatus is provided for weighing vegetables and fruits, confectionary articles, secondary products, perishables and other articles having high variations in single weight with high accuracy to produce packages having a predetermined weight. System for measurement of feeded products and for combination of weights which is equal or most approximate to the target value are improved in a way to eliminate the dead time of combining operation during weighing time for increasing the speed of combining operation while maintaining high accuracy.

Abstract: A mediator substance exhibiting inhibitory effect upon anabolic enzyme activity in mammals, is prepared by a method comprising gathering a sample of macrophage cells from a mammal, incubating a portion of the macrophage cells with a stimulating material that is associated with an invasive event, and inducing the macrophage cells to produce the mediator substance. The stimulator materials, for example, may include endotoxins, trypanosomes and the like, and the enzymes that may be observed range from lipoprotein lipase, acetyl Coenzyme A carboxylase and fatty acid synthetase, to the inducers for red blood cells growth and differentiation. The mediator substance may be utilized to raise antibodies which would in turn find utility in testing for the presence or amount of various invasive stimuli, such as infection and the like. Testing procedures and appropriate materials in kit form are also contemplated.

Abstract: The fire proofing web is laid on a roof surface, in addition to the usual roof and insulating webs. It is intended to suppress or at least delay the occurrance of surface fires covering an area. At the same time, it is intended to form a vapor barrier. For that purpose, it includes, as the carrier web, an aluminium foil between two plastic foils. A glass fiber fleece with a content of crystalline-bound water is applied to a plastic foil as a lining thereon. In the event of a fire, the water evaporates and the resulting water vapor prevents or delays a surface fire or fire penetration.

Abstract: The present invention relates to a composite yarn product, having improved strength and resistance to distortion and fracture in use, in combination with improved texture and appearance. The composite yarn product comprises strands of a composite resin laminate prepared from at least three film layers, with a centrally colored substrate prepared from a synthetic resin film, and paired outer films individually formed and adhesively attached to the substrate by heat and pressure. The film layers are bonded together by an adhesive composition. The adhesive composition comprises a first component and a second component, the first component including a resin material selected from acrylonitrile-butadiene copolymers, and butadiene-styrene copolymers. The first component is prepared in an organic solvent system. The second component contains an epoxy resin such as a bisphenol A-derived diepoxide, and a vinylchloride-vinylacetate copolymer, prepared in a like organic solvent system.

Abstract: A spiral staircase comprising a central hollow column of circular cross-sectional shape and a plurality of treads, said column having a plurality of apertures in its wall spaced spirally, each said tread having a curved locking plate at its inner end which lies contiguous with the outer face of the column and a locking pin projecting radially inwardly from the locking plate and extending through a respective aperture in the wall of the hollow column, each said locking pin having surfaces defining an upwardly extending slot which accommodates portion of the column wall, one of said slot surfaces bearing against the inner face of the column thereby inhibiting tilting of that tread.

Abstract: An intermittently operated apparatus for decorating cylindrical cans, each can having a cylindrical surface and a rim, includes a rotatable mandrel wheel; a plurality of mandrel assemblies mounted on the mandrel wheel which hold the cans on the mandrel wheel; a surface applicator roll having a length which extends past the bottom of each can and which applies a coating of varnish to the cylindrical surface of each can; a supply assembly for supplying the varnish to the surface applicator roll; a freely rotatable rim applicator roller having a tapered surface positioned in contact with the bottom rim of each can and with that portion of the surface of the surface applicator roll that extends past the bottom of each can, such that the rim applicator roller is driven by the surface applicator roll and varnish is transferred from the surface applicator roll to the tapered surface of the rim applicator roller and then to the bottom rim of each can at the same time that varnish is applied by the surface applicator

Abstract: An ice cream sandwich machine includes an index wheel having a plurality of pockets for receiving ice cream sandwiches; and a conveyor assembly cooperating with the index wheel, comprising spaced endless conveyor chains having a plurality of lugs mounted thereon for removing the ice cream sandwiches from the pockets, and a conveyor track means for receiving the removed ice cream sandwiches, the conveyor track means including a fixed conveyor track formed by parallel, spaced, fixed guides connected together by a plurality of cross-bars and the fixed guides including free ends spaced from the index wheel to provide a drop-out zone for the removed ice cream sandwiches, an adjustable conveyor track formed by two parallel, spaced, adjustable guides having slots therein to provide slidable movement of the adjustable guides over the cross-bars and with respect to the fixed guides between a first position adjacent the index wheel for receiving the removed ice cream sandwiches and a second position spaced from the ind

Abstract: A musical drum includes a generally spherical shell of a ceramic material having a thickness less than 3/8 of a inch as defining a resonant cavity therein; the shell having a bottom and an upper end; the shell being cut-out at the upper end thereof to define a first opening having a size sufficiently small to be entirely covered by the palm of a hand; the shell being cut-out, at a position between the first opening and a plane substantially mid-way between the bottom and the upper end, to define a second opening smaller than the first opening; and the shell being cut-out at a position below the plane to define a third opening for insertion of a microphone.