Abstract: The invention is a method of hydrostatic weighing of a human body and a kit for use in hydrosatic weighing. The method comprises filling with water and closing a container which the person being weighed can grasp, having the person being weighed grasp the filled and closed container and sink himself in a pool of water, remove from the container a quantity of water just sufficient to suspend himself between the bottom of the pool and its surface when he has exhaled as much air as possible from his lungs, determine the weight of water needed to refill the container and determining the density of the water, e.g., by taking its temperature.

Abstract: An air oven having a heating space accessible through a hinged door provided with material holding means for holding, and optionally rotating, materials to be cooked solely by hot air supplied by electric heaters in a recirculating duct that removes air from the heating space at one end thereof, passes it over the heaters to heat it to high temperature suitable for rapid cooking of the materials to be cooked and introducing the hot air into the other end of the heating space to envelop with swirling action the materials to be cooked. The swirling motion is imparted to the air in the heating space by introducing it through a nozzle plate having nozzles directing the jets of air flowing through them at an angle in two planes at right angles to each other with respect to the axis of rotation of the material holding means. Preferably part of the air in the heating space is removed and exhausted to atmosphere through a filter to take out odors and particles before exhausting the air.

Abstract: The process of producing ethynyl aromatic compounds which are useful as intermediates in the preparation of 3-dimensional carbon-carbon structures for aerospace and military applications and as starting materials in the preparation of organic semi-conductors. The ethynyl aromatic compounds may be any of the classes illustrated in FIGS. 1, 2 and 3 of the drawing. Starting compounds for the process may by any compound from the classes illustrated in FIGS. 4, 5 and 6. The starting compound is reacted in the presence of a Friedel-Crafts catalyst in a suitable solvent with an acyl compound from the class illustrated in FIG. 7 to yield a compound within the classes illustrated in FIGS. 8, 9 and 10. The carbonyl groups in this compound are reduced to yield a corresponding alcohol. Each hydroxy group in the alcohol is converted to an easily eliminatable group, e.g., by reacting it with methane sulfonyl chloride, when subjected to basic conditions.

Abstract: A cast, low density metal disk for anti-skid devices which has a periphery of sufficiently small width that when it contacts the wet side wall of a tire on a vehicle it spreads the film of water to each side and leaves an essentially dry area of contact between the disk and the tire instead of hydroplaning on it. The periphery preferably is covered with an anti-skid material, e.g., rubber. Chains are pre-turned or twisted in the same direction a tire tends to turn them when rolling over them to avoid further twisting with consequent shortening in use and they are given a non-circular, e.g., square cross section to increase their anti-skid properties. The chains are welded at one end to a steel ring which is removably fastened to the under surface of a disk by bolts.

Abstract: The invention relates to modular building construction and to modules for use therein. The modules may be used for floor, wall, ceiling and roof construction in single story and multi-story buildings. The floor, ceiling and roof modules are constructed of at least two sheets of rigid, foamed plastic material such as polyurethane and polystyrene of the same width and length which are offset laterally with respect to each other by 50% of the width and length, thus providing floors, ceilings and roofs of staggered construction. The spaces left in the upper layer by the offset are filled in by partial sheet of the same plastic material of the same thickness so that all the edges of the sheets of the assembled floor, ceiling or roof modules are aligned.

Abstract: A self-service beverage dispenser which includes a cabinet, a plurality of dispensing heads mounted in upper portion of the cabinet and a support for bottles to receive the beverages that are dispensed from the dispensing heads. The support for the bottles includes a trough carried by the cabinet beneath the dispensing heads to receive and to carry away beverages spilled into the trough and a perforated positioning platform for a succession of bottles forming a screen cover for the spill trough. A support for a succession of bottles to receive beverage from a dispensing head. Optionally a positioning bracket secured to the cabinet is provided beneath each nozzle for holding a bottle with the filling opening in the neck thereof out of direct alignment of the gravity induced stream of beverage flowing from a dispensing head.

Abstract: A self-service system for refilling customer furnished bottles from bulk storage. The system is designed for small neck bottles and includes a nozzle or an attachment that is too large to be received in a bottle neck and a detachable funnel that is loosely suspended below the nozzle. The apex discharge of the funnel is sized to be received in the bottle neck.

Abstract: Improvements in the art of hair bleaching relating particularly to packaging of and packages for bleach materials in dry, powdered form contained in unit quantity enclosed within a flexible plastic bag which itself is enclosed within a moisture proof can. The can may be large enough only for one such bag of powdered bleach or large enough for a plurality of such bags. Auxiliary materials such as liquid developer to be united by manipulation of the bag with the powder to form a paste, a cap for the head, gloves for the hands, etc., may be included within the package. The bag is preferably provided with an opening through which the developer may be introduced and the paste discharged, and it may be surrounded by a ring that is threaded to receive a threaded cap to close the opening to make the bag dust-proof during storage of the powder and manipulation to make paste. The cap may have a tip with a discharge passageway through which the contents of the bag may be discharged, e.g.

Abstract: The invention relates to a combustion method and apparatus for carrying out this method.The method comprises establishing (a) a combustion zone of hot embers above and near a grate and (b) a column of particulate fuel above and resting on said hot embers, supplying combustion air to said combustion zone only, flowing products of combustion generated at the interface between said hot embers and particulate fuel and in said hot embers downwardly through said grate, then upwardly in heat exchange relation to air in a space to be heated, and finally to exhaust.The apparatus comprises means for holding a column of particulate fuel above a grate, means for flowing air into a combustion zone above and adjacent to said grate at the bottom of said column only, and means for flowing products of combustion downwardly through said grate then upwardly through a heat exchange zone to exhaust.

Abstract: The present invention relates to apparatus for and a method of instrumental detection. The apparatus comprises in combination (a) an instrumental detector such as a chromatographic, spectrophotometric, fluorimetric, electrometric determination detector, and the like for analyzing an analyte and (b) a hollow dialysis fiber for eliminating such materials as insoluble and soluble polymeric materials and polymer bonded portions from the sample to be detected that would foul the instrumental detector so that the material delivered to the eluent stream flowing to the instrumental detection means is essentially free of such contaminating materials.

Abstract: Apparatus for and method of open-tube supercritical fluid chromatography.

Abstract: A projection device comprising a film projector and a loop box for a continuous film in which the projector includes a sprocket for feeding the continuous loop of film through a film gate which may be of the customary type. The loop box comprises a frame having transversely and longitudinally spaced upper and lower shaft supports, a plurality of shafts journaled in each of said upper and lower shaft supports, a plurality of pulleys rotatably mounted on each of the shafts by means of ball bearings and means to drive each shaft in the direction which the rollers mounted thereon move when the film loop is advanced through the film gate by the drive sprocket.

Abstract: Contaminating particles in lubricating oil have a density higher than the density of the oil. The present invention provides a device for removing the contaminating particles by settling out the heavier particles and separating them from the oil.The device comprises means to establish laminar horizontal flow and means to withdraw sinking particles vertically over the bottom surface of the horizontally flowing oil. In its preferred embodiment the device has a pressure tight cylindrical settling chamber over a hemispherical sump which are separated by a foraminous partition of elongated, slender vertical passages.

Abstract: The planter comprises a container for soil having a bottom wall with an aperture, a base having a top wall with an aperture, a tubular member having a liquid tight connection with said walls surrounding said apertures holding said walls in spaced axial alignment, a foraminous support ring connected to said top wall within said base surrounding the aperture, a soil retaining closure for the lower end of said support ring, a transparent water receptacle in said base having a liquid tight, removable connection therewith, thereby forming a water reservoir of substantial volume, and a sight opening in said base below the liquid tight connection for viewing the contents of the receptacle. The container, base and tubular member are a unitary, injection molded, opaque plastic article of attractive color and finish. In use the container and tubular member are filled with soil in which seeds, cuttings, transplants and the like can be planted and watered.

Abstract: The present invention relates to a tool or device for use in hair color altering procedures having means for parting the hair and for dispensing and spreading hair color altering liquids into the hair, particularly in the root area.In a preferred form the device is in the form of a closure means with a cylindrical, internally threaded collar to secure it in liquid tight relation to a squeeze bottle. A long, slender and preferably tapering parting tool extends upwardly from the closure means around a discharge outlet. The axis of the parting tool may be aligned with or offset from the axis of the collar, or be tilted in or out with respect to that axis. Attachments may be used on the parting tool to improve its liquid spreading ability. The squeeze bottles may be non-symmetrical or symmetrical about an axis aligned with the axis of the collar and of cylindrical or conical shape, with or without a shoulder at the neck end.

Abstract: The invention relates to a number of different devices that are useful in selectively altering hair color by the application of hair color altering liquids to selected portions of the hair of men and women. These include applicators that are adapted for use with, or are actually used with, squeeze bottles to hold the hair color altering liquids such as bleaches, tints, toners and the like, combs with absorbent jackets to hold such liquids by absorption and to yield them up to the hair as the comb is passed through it, and clamps to control the length of the hair to which liquids are applied by these or other methods of application.

Abstract: A hair treatment device comprising an elongated spreading means, a parting tip extending outwardly in the same general direction as the long dimension of the spreading means and a handle for manipulating the device to form tresses and then to spread liquid thereon with good control when moved transversely of the axis of the tip and spreading means. The handle may be an integral part of the device but preferably is a separable squeeze bottle to dispense hair treating liquids through a passageway in the device connecting the bottle to at least one exterior discharge orifice. The discharge orifice may be in the tip, the spreading device or both and the device may include a valve for directing liquid selectively to one or the other orifice, or both, or for blocking the passageway to both, in which case a pressure relief valve may be provided.

Abstract: The invention comprises a method of and apparatus for forming in a liquid a solution of another material which may be in solid, liquid or gaseous phase.The method comprises establishing two zones of mixing with a partial rotating separator between them to cause rotation of the liquid around an axis and circulation within each zone due to the rotation of the separator and causing agitation within each zone by a plurality of axially extending rods which rotate in the liquid adjacent to the rotating separator.The apparatus is a dissolver comprising a tank, a separator capable of rotating in the tank at various levels above the bottom thereof which is provided with a plurality of axially extending rods above and below the separator.