Abstract: A method of preparing a carbonated beverage by driving dissolved air from the water to be carbonated. 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.

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 gearhead for a shearer type mining machine comprising an elongate arm pivotally attachable at or about its mid-position to a shearer type mining machine to provide an arm pivot axis extending laterally with respect to the longitudinal axis of the arm, to one or each end of a mining machine, the arm carrying at or towards each end a spiral vane cutting drum, the adjacent drum peripheries being spaced apart to define a nip and the drums being rotatable about axes parallel to the arm pivot axis and being contra-rotatable, the vane or vanes of one drum being of opposite hand to the vane or vanes of the other drum. Mineral loading means is located within the nip provided by said drums, said mineral loading means may be in the form of an auger, a cowl, a paddle chain, or some other type of transporting mechanism, for assisting removal of the cut mineral.

Abstract: Feeder apparatus is provided for delivering a pre-determined amount of feed to hogs and like livestock. The apparatus includes a feed transporting and dispensing conveyor with which are associated a plurality of feeder units; each unit receives and temporarily stores the feed. Each unit includes a feed receiver body. A boot extends from the body and defines a discharge opening. A pear-shaped stopper valve carried in the boot fits into and onto the discharge opening to obstruct the flow. A stopper valve pull system acts to draw the stopper valve away from the discharge opening, thereby permitting feed flow; if desired, this pull system can be connected to a timer so as to discharge the feed at a pre-selected moment. The stopper valve includes a semi-spheroidal element adapted to fit into and onto the discharge opening and a conical element adapted to be drawn through the feed pile so as to discourage feed bridging and hang-up within the feeder unit body.

Abstract: A method and apparatus for heating an animal waterer of a type having an enclosed housing with a plurality of nipple valves extending outwardly of the housing for allowing animals to drink directly therefrom. The heat sink coupling is disposed interiorly of the housing and is connected to a water supply line at one end and a nipple valve at the opposite end. A rigid heater and a control means for such heater contacts the coupling; and heat is supplied to the coupling when the heater is activated. The control means senses the temperature at the outer surface of the coupling in the vicinity of the seating surface of the nipple valve and activates and deactivates the heater based on such temperature.

Abstract: A detector for a movalbe member such as a rotatable shaft includes a sensor and an alarm having a normal and a signaling condition. The sensor includes one or more magnetic pole pieces attached to the shaft whose rotational speed is to be detected, to rotate in unison therewith, and a pick-up including a coil mounted adjacent the shaft for producing an electrical signal in response to the rotating magnetic pole pieces. An electrical circuit is provided, connected between the coil and the alarm for switching the alarm between its normal and signaling conditions in response to a predetermined value of the electrical signal. The position of the coil with respect to the shaft and magnetic pieces is adjustable for selectively producing the predetermined switching value of the electrical signal in response to different rotational speeds of the shaft.

Abstract: A pulley comprises a hub and a pair of generally annular sheet metal members having central openings for receiving a portion of the hub and oppositely faltered margins for defining a groove to accommodate a belt. The hub includes a shouder portion of sufficient axial length to extend through the openings of the sheet metal members. A leading end part of the shoulder portion is flared over upon insertion through the openings for grippingly engaging the first and second sheet metal members. A plurality of radially alternating lands and grooves in the hub axially trail the shoulder portion, and a radial array of alternating slots and projections in the first and second sheet metal member openings engage the lands and grooves. Alternatively, a generally annular welding plate is provided having a central opening including a plurality of inward projections for engaging the hub grooves, and a plurality of welding projections for weldable attachment to one of the sheet metal members.

Abstract: The dental prophylactic right angle hand piece of the knob type includes conventional driving and driven members, with the driven member including an integral collar and an integral serrated knob to which the dental application or cup is releasably secured for preventing the cup from slipping under pressure. The collar forms an effective seal between the head of the hand piece and the cup to prevent bacteria from entering the interior of the hand piece. With such a construction the hand piece can be operated forwardly or backwardly without the cup slipping or falling out of the hand piece.

Abstract: A bonding material is disclosed for use in securing an orthodontic device, such as an orthodontic bracket, to a tooth. A pre-measured amount of an alphacyanoacrylate resin is provided in a syringe-like collapsible container. A pre-measured amount of an inert, finely divided particulate filler is provided in a bi-layered open-scrim cellulose package. In use, the filler package is placed between the orthodontic device and the tooth, and the resin is applied to the filler and filler package. Heat can be applied to shorten the resin cure time.

Abstract: A potted transformer winding and a method of manufacturing the same are disclosed. The method of manufacture includes the steps of inserting a temporary core pin in a hollow bobbin, winding a first coil of wire on the bobbin, placing a bobbin sleeve over the bobbin, and winding a second coil of wire on the sleeve to form a transformer winding assembly. Other sleeves and coils can be provided if desired. The transformer winding assembly is located in the interior of a casing, the casing and winding are heated, the casing interior and winding are subjected to a vacuum, and a potting compound is introduced into the casing interior in continuation of the vacuum and heat. The potting compound then flows between the core pin and the bobbin to form an electrically insulative coating inside the bobbin hollow. After the casing, winding and potting compound have cooled, at least one hole is formed in the casing adjacent an end of the pin and the pin is removed from the bobbin casing.

Abstract: The cables on a compound bow are provided at the ends thereof with double ears, hooks or anchors whereby a new bow string may readily be applied before the old string is removed or severed.

Abstract: There is disclosed a device for performing medical procedures such as curettage, or the like, employing the use of an evacuated vessel, a cannula or similar form of medical implement and a valve arrangement for selectively applying the vacuum to the cannula. An improved vacuum indicator is included within the vessel for providing a positive visual indication as to the presence or absence of an acceptable vacuum level therein. In addition the disclosed embodiment includes a vial or the like for the collection of tissue samples within the vessel, a cover structure for the vessel including a shoulder for engaging the inner periphery of the vial and one or more resilient fingers in concentric arrangement with the shoulder for positively engaging a complementary flange or shoulder formed about the outer periphery of the vial.

Abstract: There is disclosed herein a one-piece check valve for use in an applicator tip for fluid substances, or the like, comprises a reed portion and a valve seat portion and an interconnecting integral hinge section, permitting the respective portions to be folded over and engaged in superposed relation. Further, the valve includes a flange segment also preferably formed in halves adjacent the inlet sections of the reed and seat portions. The respective portions are molded as an integral unit, and upon assembly, the respective reed and valve seat portions are folded over at the hinge portion so that the reed portion seats on the seat provided by the valve seat portion, and the flange segment halves abut to form a valve inlet and an abutment shoulder extending outwardly of the inlet for engaging complimentary retaining shoulders, flanges or the like of the applicator or other fluid carrying device.

Abstract: A Bb brass horn is provided with a bell which is threaded on to the remainder of the instrument. This provides a thickening of the metal at the position of attachment and hence a relatively rigid ring circumferentially about the bell, enhancing the tonality of the instrument. The bell is detachable for storage and carrying in a relatively flat case resembling an attache case, the axis of the bell being perpendicular to the plane of the body of the instrument. The piston valves are positioned centrally of the circle or ring of the instrument for improved balance.

Abstract: A method and apparatus utilized in conjunction with a wire galvanizing apparatus assures a bright finish on the coated wire. This method and apparatus includes passing the wire through a water quenching bath immediately following the emergence of wire from the molten zinc galvanizing bath of a conventional galvanizing apparatus. A pair of pressure pads grips the wire at its entrance to the water quenching bath for substantially sealing the water quenching bath against water leakage into the adjacent molten zinc galvanizing bath. A heating apparatus is directed at the wire prior to its entrance to the pressure pads to assure that the zinc coating is still in a molten condition as the wire enters the water quenching bath.

Abstract: There is disclosed, a disposable, preferably pregelled electrode construction for the transcutaneous application of electrical pulses to provide a stimulus thereby producing involuntary neuromuscular contractions. The electrode is comprised of a base section formed from non-conductive material such as cellular plastic foam. At least two closed-bottom reservoir chambers are formed in the base section for housing a quantity of electrolytic gel, with a cellular sponge-like pad disposed in each chamber and saturated with said electrolytic gel. An electrical terminal assembly is provided for each reservoir chamber in the form of a two-piece snap-type fastener mounted to the base section through the bottom wall of the chamber. Each terminal assembly includes an inner eyelet in surface engagement with the gel pad, and an outer stud engaged with said eyelet for connection to an electrical lead from a pulse generator.

Abstract: In the manufacture of O-rings by compression molding, the mold parts are so shaped as to provide the O-ring with a flattened sealing surface along the outer and inner peripheral portions of the ring, with the mold parting line along one margin of each sealing surface. Optionally the ring may be provided with additional annular flattened sealing surfaces at the upper and lower peripheral portions of the ring body.

Abstract: The invention contemplates a flow control valve that provides emergency sealing action upon inadvertent, thermally induced failure of the primary seal. The body of the valve includes an annular shoulder that is disposed adjacent an annular seat; and an annular collar of substantially incombustible corrosion resistant, nongalling material is specifically mounted on the shoulder, the collar including a first portion hermetically connected to the shoulder and a second, lip like portion free to move with respect to the shoulder and normally spaced from the selectively positionable valve element. This collar and more specifically the lip portion thereof is provided with prestressed regions normally situating the lip portion proximate the body shoulder and in position wherein said lip portion will not interface with the movable valve element.

Abstract: Sensors are positioned adjacent a roadway. Such sensors conveniently comprise pressure switches connected to two speed hoses to be run over as in a traffic counter. Alternately, photo-optical, acoustical, or magnetic field sensors can be used. The sensors are spaced a predetermined distance apart in the direction of travel, and provide information to a logic system to measure the speed of vehicles traveling along the roadway. The logic system is connected to a simple readout sign displayed for observation by drivers of vehicles along such roadway, which sign indicates whether a vehicle is traveling at a proper rate, or too fast or too slow, or too close to a preceding vehicle. A modified motion picture camera is provided adjacent the roadway to film a vehicle that is moving too rapidly, and a modified film editing device is provided for counting the frames exposed, and thereby to determine the speed of such vehicle. This latter device preferably reads out direct in miles per hour.