Abstract: The spray head consists of a body in which two similar superposed and coupled valves are mounted (16,27). The shank (12) of the upper valve is rigid with a control knob (5) provided with a nozzle (14). The body further encloses a pressure-reducing device. The body has an orifice (36) connecting a compressed-gas reservoir to the lower valve, an orifice connecting the pressure-reducing device to the vessel and an orifice (23) connecting the vessel to the upper valve. The pressure-reducing device comprises a slide-type regulation valve. The spray head may be secured detachably or not to the compressed air reservoir, and also to the vessel.

Abstract: A sanitary water barrel for use on construction job sites and the like. This system employs a substantially standard barrel that has been modified to accept a replaceable plastic liner. The exterior of the water barrel near the upper end thereof is provided with radially extending hook members to engage with apertures placed near the upper periphery of a replaceable liner. The liner is provided with an integral spout which is passed through an opening in the side wall of the barrel. A weight- and spring-biased closure mechanism normally bears against the spout of the liner as it leaves the barrel causing the closing of the spout and therefore prevents water leakage therefrom. Water is caused to flow by raising a lever on the valve when desired. These special liners can be fabricated in a roll type fashion similar to garbage bags with perforated tear lines provided to separate each individual liner unit.

Abstract: A valve for applying a flowable material in which it is desired to provide a sharp cutoff in application of the material includes a valve body with a chamber therein in communication with a source of the material to be applied. A movable piston is positioned within the valve body and there is a passage in the piston opening to the chamber with the passage terminating in an application opening. A movable valve stem is positioned to open and close upon the passage chamber opening to control the flow of material to the passage and application opening. A negative pressure is created at the application opening at or immediately after closure of the valve stem upon the passage chamber opening to thereby provide a sharp cutoff in the application of the material from the opening.

Abstract: This relates to a dispenser for paste-like products wherein there is a pump chamber disposed between a container for the product and a dispensing opening and the pump chamber and an adjacent duct have associated therewith flow control inlet and outlet valves. The principal feature resides in the provision of a separate insert which is telescoped between a container and a head member and which insert defines a pump cylinder and a discharge duct and carries and inlet valve element and an outlet valve element. The inlet valve element is integrally formed with the insert while the outlet valve element may be selectively formed integrally with the insert or as a separate insert which may be readily incorporated within the primary insert.

Abstract: A variable speed ratio system for the controlled dispensing of a plurality of non-compressible fluids at high pressure, principally for use in reaction injection molding processes. Each of the pistons in two or more displacement cylinders that contain the fluids to be mixed is connected via a rack gear to the piston of a hydraulic driving cylinder, all hydraulic cylinders being connected to a common source of pressure. A variable speed change gear train connected to each rack gear will control the speed ratios of the displacement pistons irrespective of the fluid viscosities or mixing orifice sizes while the gears are subjected to only the differences in forces acting on the displacement piston rods.

Abstract: A device for illuminating an area immediate to the dispensing orifice of a compressible eye drop dispenser. A miniature light source is held in a fixed, predetermined relationship with respect to the dispenser and provides a collimated beam of light which projects onto, and illuminates, the dispensing orifice.

Abstract: A flaked ice dispenser comprises a hopper for reception of a mass of small particles of ice, the hopper having a circular upper portion and a polygonal shaped lower portion the corners of which extend outwardly of the upper portion, an impeller which is rotatable in the hopper and has a conical body and equally spaced arms extending radially therefrom, and an ice diverting assembly at an outlet from the hopper. The round upper hopper portion allows ice in that portion to rotate without substantial resistance, the corners of the lower portion allow for displacement of ice therein from the main mass thereof, and the diverting assembly facilitates movement of ice through the outlet. The dispenser enables flaked ice to remain in free flowing form without agglomeration and to be readily dispensed.

Abstract: An alumina slurry supply system for use in conjunction with a polisher or grinder apparatus or the like for preparing the surfaces of metallurgical specimens, the system comprising an alumina slurry reservoir, a recirculation pump disposed in the reservoir, an applicator arm for dispensing the abrasive slurry to a platen or lapping wheel of the polisher or grinder apparatus, a first conduit for receiving slurry pumped from the reservoir, a second conduit connected to the first conduit for recirculating the slurry to the reservoir, a third conduit leading from the first conduit to the applicator arm, a valve in the third conduit movable between an open position to supply abrasive slurry to the applicator arm and a closed position in which all abrasive slurry pumped from the reservoir is recirculated thereto, and a timer for controlling the operation of the valve.

Abstract: A plate is attached to a rail which moves vertically in a housing. The housing includes a brake which rubs on one side of the rail; on the other side, there is a roller. A leaf spring is positioned between the housing and the roller. When the rail moves vertically in one direction, the roller is pushed progressively harder against the rail. This squeezes the rail against the brake, creating a braking force on the rail that increases, to maximum, in relation to distance the rail moves. This arrangement may be used as a buffer for an elevator cab or counterweight in an elevator.

Abstract: A lift door control apparatus including a door locking mechanism and a release mechanism for releasing the door locking mechanism. The release mechanism comprises a release arm coupled to the shaft of an electromagnetic actuator. When the actuator is de-energized it is held in a first position in which the arm is engageable with a floor ramp when the lift car is at a floor. When the actuator is energized the arm is held in a second position in which it is held out of engagement with any floor ramp. Two finger members are mounted on the actuator shaft and arranged to be moved towards one another at their mounted ends so that their free ends engage one another and move outwardly away from the shaft when the actuator is de-energized and the release arm engages a floor ramp. This movement provides a release impetus to the door locking mechanism. The door locking mechanism may include a spring for mechanically operating the lift door operating mechanism in the event of power failure.

Abstract: A system for metered dispensing of a product comprising a hermetically-sealed package containing sealed therein product to be dispensed, together with a pressurizing agent and a pump for dispensing the product. The pump discharge pressure of which is substantially independent of the internal pressure of said package.

Abstract: A particulate material dispenser comprising an elongate, vertically extending body defining an upwardly opening material holding compartment, an elongate, laterally extending semi-cylindrical chamber at the bottom of the body and opening upwardly into the compartment and an elongate, laterally extending vertical discharge opening with front, rear and end edges at the bottom of said chamber, an elongate rotor with a plurality of circumferentially spaced, longitudinally extending, radially outwardly projecting webs with outside edges and defining a plurality of circumferentially spaced radially outwardly opening material receiving and transporting pockets of predetermined volume, is positioned in and extends longitudinally of the chamber with the outside edges of two adjacent webs at the lower half of the rotor in sliding sealing engagement with the inside surface of the chamber adjacent the front and rear edges of the opening and with the pocket therebetween communicating with the opening, a spring is position

Abstract: A dispensing pump of the pressure accumulating type includes an assembly of a pump body and a separate piston member, the body including a closure cap for securing the assembly in fluid tight communication with the opening of a container of flowable product to be dispensed, a plunger/accumulator forming a variable volume pump chamber together with the piston and being reciprocable relative thereto, and a plunger head surrounding the plunger. The plunger has a vent seal for opening and closing a vent chamber defined around the piston. The closure cap is of a hard and durable material, while the separate piston is softer and more compliant which gives its lip seal good definition which avoids pump chamber leakage as it precisely conforms to the inner diameter of the plunger and to any irregularities thereof.

Abstract: A device for separately storing multiple mixable components prior to use and allowing for, at a subsequent date, their mixing. The device or system being ideally suited for dispensing whip cream in flavors and corresponding colors or epoxy and hardener. The device has two separate containers from which metered proportions are mixed when needed.

Abstract: An applicator for spraying material such as fertilizer on a vegetative surface for use in domestic horticultural purposes. The applicator has a pump for supplying liquid to spray nozzles, which pump is driven on rotation of the applicator wheels. The applicator is normally pushed over the ground using a handle. The pump drive axis and wheel axis are co-axial and the wheel is supported on a single one piece shaft which also forms the drive shaft for the pump without an intermediary coupling. This provides a compact and efficient machine. The pump is mounted on a bearing housing for the shaft into which housing and a bearing housing on the other side of the machine fit the ends of the handle, giving a strong handle support.

Abstract: A method and apparatus for dispensing liquid compositions. The apparatus includes a reservoir for containing the liquid at a low temperature, transfer means to a circulating loop at a higher temperature, means for coincidentally heating and mixing the liquid in the loop and means for dispensing the liquid from the loop. The invention is particularly useful for dispensing liquid adhesive and coating compositions, including thermosetting polymers, heat sensitive polymers or plastisols and other dispersed liquid systems. In addition, mixtures of polymeric liquids with other components such as gases, solvents or liquid blowing agents may be employed with uniformity of composition for dispensing foams or atomizable paints.

Abstract: A system for pumping liquid materials with reciprocating pumps driven by hydraulically operated motors, wherein the pressurized hydraulic oil which is used to drive the hydraulic motors is supplied via reciprocating proportioners. The reciprocating proportioners are driven by a reciprocating air motor operated under predetermined air pressure. The system operation is characterized in that, under blocked output pressure conditions, the air motor will inherently stall and thereby limit the pressure of the hydraulic oil acting to drive the hydraulic motors, which therefore limits the pumping pressure applied to the reciprocating pumps, and limits the output pressure of the pumped liquid materials.

Abstract: A positive-displacement volumetric metering depositor particularly but not exclusively useful in food production equipment has a continuously-rotating cylinder with a diametrically-disposed metering piston or plunger having the general form of an elongated, relatively narrow rectangular geometric solid of a desired height which moves cyclically across the diametral cylinder passage during its rotation to receive a measured volume of media at the top of cylinder rotation and discharge such volume at the bottom of cylinder rotation. Cams and cam followers control such cyclic piston movement, and are adjustable to vary the volume of the measured charge by changing the relative positions of a pair of complementary component piston parts together defining the composite metering piston.

Abstract: An apparatus for a controlled supply of a powder to a mold for continuous casting has a vibrating conveyor with a delivery edge and a retaining wall carried by the vibrating conveyor. The retaining wall extends along the delivery edge and defines a flow control gap therewith, the retaining wall causing the powder to pile up thereat and to exert a conveying pressure on the powder flowing through the gap. The flow control gap has a height varying in inverse relation to the conveying pressure.

Abstract: A device for storing and dispensing mercury and tablets comprising:(a) a housing having a main discharge port;(b) a normally closed mercury reservoir extending from the housing, the reservoir including a discharge port;(c) a tablet container extending from the housing, the container having a discharge port;(d) a passageway within the housing, part being below the mercury discharge port and another being above the main discharge port, the passageway being adapted to receive a slidable member, the slidable member being adapted to slide within the passageway between first and second positions;(e) a vent including a passage communicating with the interior of the mercury reservoir near the top and with the passageway when the slidable member is not in the first position, but is sealed from the passageway when the slidable member is in the first position;(f) a mercury metering cavity within the slidable member to receive mercury from the reservoir through the discharge port when the slidable member is in one of the