Abstract: An eductor-mixer system in which pressurized working fluid is discharged through a nozzle as a concentric, high speed jet flowing past the end of an inlet tube into a mixing chamber for generating a vacuum thereby to positively draw a pressure transportable material through the inlet tube and into the mixing chamber and for mixing with the working fluid to form a dispersion with the walls of the mixing chamber being spaced from the projected path of the jet. A bypass is disclosed for the flow of pressurized working fluid around the nozzle thereby to control the amount of material drawn into the eductor-mixer. A recycle system is also disclosed which withdraws a portion of the mixed dispersion and recirculates it through the nozzle for shearing as it passes through the nozzle. Additional material and/or working fluid may be added so as to vary the concentration level or quality of the resulting dispersion.

Abstract: An article of hospital furniture having bottom, top and side walls and a closure for closing an opening at the front of the article, the closure being adapted to be pulled open from a closed position. The closure comprises a front panel and an elongate flexible gripping member secured to the periphery of the panel. This member extends along edges of the panel and around corners of the panel and is of frictional material to facilitate pulling the closure open by exerting pressure on the member and pulling it forwardly.

Abstract: Method of and apparatus for fabricating spiral wrapped cartridge cases or the like, in which an expandable bladder positioned within the interior of the cartridge case is initially expanded by application of hydraulic fluid at relatively low hydraulic pressure levels and at relatively high flow rates until the bladder substantially fills the cartridge case and then is pressurized at relatively high hydraulic pressure levels to form the cartridge case within a die cavity. Hydraulic pressure is applied to the bladder by a hydraulic pressure generator which is powered solely by the closure of the platens of a conventional industrial press between which the die and the pressure generator are mounted. The pressure generator shifts automatically from its low pressure to its high pressure mode of operation as the press platens close.

Abstract: A closed system for filling a container with a load of powdered, granular, or other dry fluent material and for unloading the load substantially without the emission of dust to the atmosphere. The container has an opening in its top which may be sealingly secured to a filling head during during filling and closed by a removable cover. The filling head is connected to a dust receiver for removing dust laden air displaced from within the container as the load is delivered to the container. The container used with this system may be adapted for fluidized unloading of the powder substantially without the release of dust.

Abstract: Apparatus for automatically sewing workpieces along edges of each workpiece extending in different directions, in which a workpiece is automatically turned when it has been stitched along one edge for stitching it along the next edge, by blowing air on the workpiece to swing it around, using the needle of the sewing machine as a pivot, and in which workpieces are automatically entered in the sewing machine for being stitched and automatically removed after they have been stitched.

Abstract: An air motor comprising a cylinder, a piston, and a valve mechanism for controlling the supply and exhaust of air to and from opposite ends of the cylinder, the valve mechanism comprising a D-valve and an actuator for the D-valve operable by the pressure air for driving the piston, movement of the actuator being controlled by valves at opposite ends of the cylinder for exhausting air from opposite ends of the actuator, these exhaust valves being operated by the piston, and the motor having means operable by the piston at each end of its stroke for restricting the exit of air from the cylinder to cushion the piston and prevent it from striking the ends of the cylinder.

Abstract: Safety apparatus for a bacon press or the like including a transparent safety door movable vertically between a raised retracted position in which a slab of bacon or other work to be pressed may be readily placed in the press and in which a pressed slab of bacon or the like may be removed from the press, and a lowered position in which access to the movable parts of the press is blocked. Movement of the safety door from its raised to its lowered position initiates operation of the press. Partial opening of the door during operation of the press immediately stops the press. The door is automatically raised at the end of an operating cycle of the press. The safety apparatus also includes the provision of safety screens which may be readily raised and locked in their raised position to permit access to the press and which may be readily lowered.

Abstract: The method of manufacturing coiled springs from hot-rolled steel rod (as distinguished from drawn wire) wherein round steel rod is formed by hot rolling with the gauge of the rod within a tolerance of .+-.0.010 inch and the rod not out of round more than a maximum of 0.015 inch, oil tempering the rod as produced in the hot rolling operation, without drawing it, by passing it through an austenitizing step, an oil quenching step and a tempering step, and winding springs from the oil tempered rod.

Abstract: A portable lighting fixture for use with a patio umbrella and the like in which the umbrella is supported by a center pole having struts extending outwardly therefrom to the underside of the umbrella when the umbrella is in a raised position. A base has a slot therein extending inwardly from an edge of the base toward the center thereof for receiving the pole to removably install the base below the underside of the umbrella about the pole. The base is supported by the struts when installed. At least one electric light source is mounted on the base. Power is supplied from a source of electrical energy to the light source thereby to illuminate the area beneath the umbrella.

Abstract: A jack for positioning and supporting a large industrial machine or other object on its foundation. The jack comprises a base to be supported on the foundation, a support member having a cylinder bore therein, and a ball mounted on the base, the lower end of the piston bearing on the ball to permit limited swivel movement. The support member has a generally flat, upwardly facing end face to engage the object from below and a lower downwardly facing end face which is supported by hardened grout and which extends out beyond the base. The support member is tapered from its lower to its upper end face providing a tapered surface which is sufficiently rough to mechanically interlock with the hardened grout thereby to inhibit upward movement of the support member with respect to the foundation.

Abstract: Methods of manufacturing pants from heat-settable textile material, with molding of the material for a good fit, in which two flat tubes of such material are assembled, seamed to form a crotch seam, applied to a mold shaped to impart appropriate form to the tubes for a better fit, and heated to set the tubes in the form of the mold; and the molds used in carrying out said methods. According to a first embodiment, the material in the crotch section of the tubes is left intact until after molding, being then cut out. According to a second embodiment, the material in the crotch section of the tubes is cut out before molding.

Abstract: The treatment of nylon fabric for wettability, with the treated fabric capable of withstanding a substantial number of launderings without undue loss of wettability, involving exhaustion of a condensation product of ethylene oxide with an aliphatic primary amine having between about 16 and about 18 carbon atoms in a ratio of about 16 moles ethylene oxide per mole of said primary amine, quaternized with methyl sulfate, onto the fabric under relatively intense agitation.

Abstract: A box containing a roll of material such as a rope of tubular plastic netting, the roll having a passage extending through it axially. Each end of the box has a triangular aperture through it. When the roll rests on a first side of the box the apertures line up with the passage through the roll. In this position an arbor is inserted through the passage and the apertures. To dispense the material the box is turned over so that a second side, the side opposite the first side, is on the bottom. The arbor now rests on arbor-supporting edge portions of each aperture. The distance between each arbor-supporting edge portion and the second side is greater than the radius of the roll, so the roll is suspended above the second side of the box by means of the arbor. The roll then rotates freely in the box, permitting material to be unwound.

Abstract: A hand-propelled cultivator implement having a frame with a wheel journaled on the front of the frame for rollingly supporting the implement as it is moved over the ground. A cage is provided on the frame for rigidly mounting a selected cultivating tool on the frame in a cultivating position for cultivating the soil as the cultivator is moved over the ground and for permitting quick change of one cultivating tool for another. The cultivating tool mounting arrangement further includes a locking member manually movable from a retracted position in which a cultivating tool may be removed from its cage and replaced by another tool and a locking position in which the locking member positively retains the cultivating tool within the cage. In another embodiment, a plurality of tools are rigidly mounted on a rotatable turret, the latter being positively retained in any selected one of a plurality of positions by a movable locking member.

Abstract: Apparatus for jumpering a first battery to a second battery. First and second jumper cables are connected to terminals of the batteries, each jumper cable being connected between corresponding polarity battery terminals to form an electrical path therebetween. A normally open set of contacts of a relay are series-connected with one of the jumper cables to hold the circuit path between the batteries open while the cables are being connected. This prevents the creation of sparks at the terminals of either battery. The relay is energized after the cables are connected to close the contacts and complete the circuit path between the batteries whereby one of the batteries may supply power to a load normally supplied by the other battery. The set of contacts are enclosed to prevent any sparks created during closure of the contacts from igniting any gases generated by the batteries.

Abstract: A unit for dispensing chilled cans and bottles of beverage on a first-in, first-out basis. The unit comprises a walk-in cooler having a ceiling, a floor, and front, rear and side walls, the front wall having an offset portion extending generally horizontally forwardly and then vertically downwardly for providing a counter at the front of the cooler outside the cooler and a recess below the counter inside the cooler. The counter has an opening therein closed by a door. The unit also includes a receptacle for holding a supply of chilled cans and bottles of beverage inside the cooler, the receptacle having an inlet through which cans and bottles are loaded into the receptacle, and an outlet through which cans and bottles are removed from the receptacle. The receptacle is in the recess below the counter opening with the outlet directly beneath the counter opening for removal of the cans and bottles from the receptacle and out of the cooler via the opening.

Abstract: Apparatus for stirring a mass of grain stored in a bin, the bin having a cylindrical wall, a roof and a track extending in a circle around the inside of the wall in a horizontal plane above the level of the grain in the bin. The apparatus comprises a beam swingable in a generally horizontal plane above the grain about the central vertical axis of the bin. The inner end of the beam is suspended from the roof of the bin and the outer end has a carriage removably mounted thereon having wheels adapted to be driven along the track for effecting a sweep of the beam around the bin. A plurality of augers spaced at intervals along the length of the beam and extending downwardly therefrom are rotatable on their axes for moving the grain upward so that during a sweep of the beam around the bin the grain is stirred, aerated and blended for controlling moisture variation in the grain from bottom to top.

Abstract: A formulation which may be applied to a substrate to produce a flexible, high temperature, thermally stable and color stable film thereon. The formulation comprises a poly(1,3-imidazolidine-2,4,5-trione) polymer, a free radical scavenger in an amount sufficient to inhibit cleavage and cross-linking of the polymer by action of oxygen thereon, and a solvent for the polymer. Also disclosed are a method for applying a flexible, high temperature, thermally stable and color stable color coating to a polyimide substrate; the substrate so coated; and an insulated conductor assembly having a polyimide insulative cover and an imidazolidine trione based-top-coating over the cover.

Abstract: 5-Gluconamido-2,4,6-triiodo-N-methylisophthalamic acid, 3-acetamido-2,4,6-triiodo-5-trishydroxymethylacetamido-benzoic acid, related compounds and salts and esters thereof are useful as x-ray contrast agents. The corresponding acyl halides are useful as intermediates.

Abstract: Methods of and apparatus for feeding items (or groupings of items) one after the other to apparatus, such as a flight conveyor, which cycles continuously at a steady cycling rate are disclosed with an item being fed to the apparatus during a portion of each cycle thereof and with the items being randomly delivered to the means feeding the items at an average rate. The method and apparatus of this invention involve feeding a selected number of items one at a time from each of the backlogs of accumulated items and conveying them forward for placement on the apparatus in timed relation to the cycling rate of the apparatus.