Abstract: A screw tube assembly is disclosed for use in a screw jack or the like. The screw tube assembly comprises a hollow tube member in one end of which is formed a recess so as to reduce the tube member wall thickness. Into this recess an annular bushing is inserted. A tip portion of the recessed tube wall is crimped over the received bushing outer end to lock the bushing in the tube against axial movement. A chordal portion of the bushing and overlying tube is then displaced radially outwardly to form an external tube assembly key and to lock the bushing in the tube member against rotational motion.

Abstract: A valve for hot melt adhesives is provided with a spring pressed piston urged open by adhesive pressure. A nozzle on the valve has an outlet channel of predetermined volume. Upon termination of fluid pressure the piston retracts through a volume less than the predetermined nozzle outlet channel volume to suck back a limited amount of adhesive to prevent dripping of adhesives.

Abstract: There is disclosed a pill dispenser having a base member with a plurality of compartments formed therein for holding pills, a cover member rotatably supported on the base member in superposed relation to said compartments and having a pill exit opening alignable with a compartment to dispense a pill contained therein. The dispenser further includes locking arrangement having a releasable actuator member operable to free the cover member for rotation relative to the base member. The pill dispenser also may include an indexing calendar or dating member rotatably attached to the base member with markings corresponding to the pill compartments.

Abstract: There is disclosed a novel dispensing unit and system for the controlled, metered dispensing of one or more liquid products. The unit which serves to provide an important part of the system is designed for use with an arrangement wherein pressurized liquid products are delivered to the unit for controlled, metered dispensing. The unit is characterized primarily by the employment of metering chambers defined partially by flexible diaphragms. In conjunction with each said chamber, there are provided an inlet and outlet passage arrangement and a valve arrangement for controlling the supply and discharge of liquid product from said metering chamber. The unit includes a selectively operable control arrangement provided for opening and closing the valving arrangement, and also alternately pressurizing and venting the metering chamber diaphram with respect to a pressurized medium.

Abstract: Disclosed is a method and apparatus for recycling asphalt concrete roadways. The apparatus includes means for heating the roadway and applying emulsified asphalt thereto prior to scarifying the heated surface. The surface is then scarified so as to loosen the heated asphalt. The scarified material is then treated with asphalt and, if desired, a rejuvenating agent. They are mixed thoroughly to form a hot mix of asphalt concrete from the old road material. New material is added, and mixed with the old material by a pug mill rotor. The combined rejuvenated hot mix is further mixed and leveled by means of screws and then compacted substantially by a vibrating screed. The screed has a continuous bottom plate and a plurality of relatively movable upper sections which are connected by turnbuckles adapted to be adjusted for bending the bottom plate of the screed to conform to the contour of the road crown. Final compaction of the road surface is obtained by rollers.

Abstract: A semi-disassemblable toy vehicle is disclosed and claimed. In general, the vehicle includes a body having a hinged, openable hood and a hinged, openable trunk lid. When the toy user opens the trunk lid, a trunk compartment recess is disclosed, in which a tool box is carried. Within the tool box are a number of wrenches and a screwdriver. After obtaining the tools to work on the vehicle, the playing child can open the hood. Under the hood is an engine compartment recess, in which are an engine, a radiator and a battery representation. Battery caps and a radiator cap can be moved between open and closed positions by applying the appropriate manual dexterity. The wrenches can be used to tighten and loosen spark plug representations carried by the engine. The screwdriver can be used to loosen and tighten an air filter carried atop the engine. While these parts can be loosened, they cannot be entirely removed, thereby obviating the well known propensity of children to loose toy parts.

Abstract: An analysis instrument for measuring selected constituents present in a sample of a material such as a bulk commodity includes a test cell to receive the sample. The test cell comprises a capacitor whose electrical properties are modified in accordance with the dielectric constant of the sample, which dielectric constant is a function of the contents of the sample. A hopper is mounted above the test cell for holding a quantity of the commodity to be tested and doors forming a bottom of the hopper are selectively openable to introduce the material from the hopper into the test cell. A strike off mechanism is provided for striking off the sample level with the top of the test cell to assure a constant volume of sample material therein. Weight and temperature sensors are provided for measuring the weight and temperature of the sample. An unloading mechanism is provided for rotating the test cell to remove the sample therefrom upon completion of the measurements.

Abstract: There is disclosed a silo door system designed to adapt older silo constructions for automated unloading, or to be employed as a general door system, if desired. The system includes a number of apertured panel sections clamped to the silo wall in aligned relationship, with door members for selectively closing said apertures. In addition, there is disclosed a double arm unloader chute positioning means for maintaining alignment of an unloader discharge chute with the apertures in said panel sections.

Abstract: An auxiliary release apparatus for use with a hydraulic pressure releasable brake having a principal source of hydraulic pressure comprises an auxiliary source of hydraulic pressure selectively connectable to the brake for releasing the brake when the principal source of hydraulic pressure is not operating. The auxiliary release apparatus includes a shuttle valve and a relief valve for automatically disconnecting the auxiliary source and reconnecting the principal source of hydraulic pressure from the brake when the principal source of hydraulic pressure is operating. The auxiliary source of hydraulic pressure includes a cylinder, a hand pump comprising a handle and a piston connected to the handle and disposed in the cylinder, a fluid supply reservoir and suitable connection lines between the fluid supply and the cylinder. The relief valve also regulates the amount of pressure provided to the brake by the hand pump.

Abstract: A fast clamp chisel trip apparatus is disclosed for use with a chisel plow having a frame with a tool attached thereto with means for lowering and raising the tool to positions for working and for transporting said plow, respectively. The embodiment of the apparatus disclosed includes means for holding the tool in a rigid position for plowing while the plow is in its work position, said means being adapted to remove the tool from this rigid position whenever the tool, while in the process of plowing, encounters any force of resistance greater than a predetermined force. Also included are means for setting said predetermined force into the apparatus, and means for returning the tool to its rigid position for plowing when the source of said resistance force has been by-passed.

Abstract: A one-piece molded plastic hinge member for a washing machine or other appliance door having integral starter attachment means for mounting to the appliance without auxiliary fasteners, an integral pintle for pivotal connection to a door, an upstanding stop element for limiting movement of the door, and an integral upstanding pad portion for preventing direct contact between the door and an adjacent part of the appliance.

Abstract: A sludge filter is disclosed of the type having an open-topped tank adapted to receive a quantity of sludge, and one or more filter panels vertically disposed within the tank. A hose connection extends between each panel interior and the tank exterior to draw filtrate from the panel interiors to sewer or other discharge lines. The panels comprise hollow, flexible, bi-walled, slick-sided, artificial cloth filter bags carried over open frameworks of appropriate size. The frameworks each include a top frame member having a length sufficient to extend over the tank sides and thus support the depending framework and bag within the tank.

Abstract: A process for the production of alcohols and esters comprises hydroxylating a saturated hydrocarbon at between about 20.degree. and about 130.degree. C. with an oxygenated amine. The amine may be a hydroxylated secondary amine or an oxide of a tertiary amine. The reaction medium includes a Lewis acid and a salt of divalent or trivalent iron.

Abstract: Reefing apparatus for a sail of a sailing boat makes use of a hollow boom for the sail. The boom has a lengthwise slit in the top extending over the length of the sail footrope and contains a tubular shaft which can rotate within the boom and to which the footrope is attached. A second shaft is located within the tubular shaft and is coupled to the tubular shaft by a spring, which is stressed on rotation of the tubular shaft relative to the second shaft.The sail is rolled up on the tubular shaft and within the boom. When the sail is raised, it is unrolled from the tubular shaft and drawn through the slit, the spring being progressively stressed. When the sail is to be reefed, the halyard is appropriately slackened, when the sail is drawn into the boom by the action of the spring and rolled on the tubular shaft, until the required reduced sail area is obtained.

Abstract: A chisel plow and a cold flow shoe for dispensing ammonia fertilizer into an earthen field are disclosed. The shoe includes a vapor tube for receiving ammonia vapor, and a liquid tube for receiving ammonia liquid from sources which can be mounted upon the plow. The vapor tube defines an orifice for dispensing the received ammonia vapor in a rearward direction into a trench formed by the plow chisel. The liquid tube defines a liquid dispenser orifice located immediately above and to the rear of the vapor dispensing orifice. Liquid ammonia is thus dispensed atop the previously dispensed ammonia vapor as the plow chisel moves through the ground and forms the trench. As earth collapses atop the dispensed ammonia, the ammonia is retained in positions located immediately adjacent growing crop plants, or adjacent those locations where plants will be grown. Effective, efficient ammonia fertilization is thus provided.

Abstract: A security hinge is disclosed which includes a pair of leaves, having respectively, at least a pair of spaced end knuckles and at least one immediate knuckle disposed therebetween. Each knuckle includes a central axial bore, the bores being aligned co-axially. A pair of pins are provided, each pin having a head portion disposed in an end knuckle bore for rotation in unison therewith and a body portion thereof disposed within an intermediate knuckle bore to maintain the leaves in assembly and permit relative rotation therebetween the pin and intermediate knuckle. Stop means, are provided interiorly of the bores, against which the heads of the respective pins abut, thus preventing the pins from being driven completely through the end knuckle bores in the axially inward direction. Since the pins are recessed within the bores, and one prevents the other from being forced out of the bores in the axially outward direction, unauthorized disassembly of the hinge is precluded.

Abstract: This application discloses a method of wet grinding crude phosphate rock containing clay minerals and the like impurities. The procedures of the invention produce a rock slurry of enhanced fluidity and a desired degree of economy; and the principles of the invention may be applied to rock slurries after size-reduction. The method of the invention contemplates introducing coarsely sized, crude phosphate rock with component clay minerals or the like into a grinding mill together with a suitable quantity of water and with an amount of a calcium-free alkaline amendment or additive material which is adequate to establish and maintain a pH of at least about 8.5 in the mixture.

Abstract: An air pressure monitor includes an electro-mechanical sensor comprising a flexible diaphragm whose deflection is proportional to the air pressure applied thereto, and a variable inductor including a coil and a movable core inside of the coil, the movable core being attached to the flexible diaphragm for movement in response to the deflection thereof to adjust the inductance of the coil in proportion to the air pressure applied to the diaphragm. The monitor further comprises electrical circuits including a first oscillator circuit including the coil for producing a pressure signal at a frequency proportional to the pressure in response to the inductance of the coil, and a second oscillator circuit for producing a reference signal at a frequency corresponding to the frequency produced by the first oscillator when the pressure is substantially zero.

Abstract: An article is hardened or tempered in a localized zone. Where the article is a thread-forming device the zone is that part of its thread that does the thread-forming in the workpiece. The hardness of the remainder of the body of the article is left unchanged. The localized hardening is carried out by a method that includes high frequency induction heating only of the zone followed by quenching of the zone whereby the hardened zone is a skin of predetermined depth. A machine for making articles in accordance with the method comprises means for delivering the articles in succession to an induction heating element, a mechanism for advancing the articles through the heating element for progressive heating of the surface of the article in the localized zone to a predetermined depth, a quenching manifold for applying a spray of quenching liquid to the heated article, and means for removing the heated articles from the heating element and conveying them to the quenching manifold.

Abstract: A reflux deaeration system is disclosed which removes air from water used in producing carbonated beverages. Carbonating gas under relatively high pressure is conducted from a beverage carbonating mechanism to a water conduit for mixing with the water. In accordance with the qualitative principles of Dalton's Law, the introduced carbonating gas drives out air dissolved in the water.