Abstract: A game call of the type known as a mouth call, has a plurality of generally elongatedly rectangular, planar, thin, flexible diaphragms secured at opposite short edges in a frame, the diaphragms lying adjacent one another in substantially the same plane, each of the diaphragms having a trailing and a leading long edge, the trailing edge of the diaphragms being substantially parallel to and spaced from the leading edge of the next successive diaphragm.

Abstract: A quick action band saw blade tensioning device is disclosed. The band saw blade tensioning device is used in a band saw machine having at least upper and lower band saw supporting wheels operatively rotatably mounted to a supporting frame. The band saw blade tensioning device includes a wheel support pivotally mounted to the supporting frame about a wheel support pivotal mount, one of the upper and lower band saw supporting wheels being rotatably mounted to the wheel support about a wheel support rotatable mount, and an adjustable device for pivotally moving the wheel support and its rotatably mounted band saw about the wheel support pivotal mount so as to apply a greater or lesser tensioning force to the band saw as desired. The adjustable device includes an elongated wire spring which is attached to the pivoting wheel support to provide the desired tensioning force to the band saw blade. Tension is maintained by clamping the deflected spring into place.

Abstract: A method and apparatus for treating preselected areas of metallic ladder rungs wherein such metallic spaced rungs are moved in a path substantially normal to the longitudinal axes of the rungs with preselected areas of the spaced rungs passing through a controlled longitudinally extending heating zone to heat such preselected areas to a desired annealing temperature.

Abstract: A lighted turn and stop signal for rear mounted, eye level use on an inside shelf of an automobile is disclosed. The unit includes an elongated housing having spaced end compartments and an intermediate compartment, with one open side for each compartment, which together serves as the rear side of the unit when mounted on the inside rear shelf of an automobile. A light is provided in each compartment which is shielded from the other compartments and visible from each open side. The lights in the end compartments are electrically connected to the automobile left and right turn signal indicators while the light in the intermediate compartment is electrically connected to the automobile brake pedal. An elongated material strip extends across the open sides of the compartment and is operatively associated with covered lens covers for the open side of each compartment.

Abstract: An exhaust gas recirculation (EGR) valve for controlling the amount of exhaust entering the intake manifold of an internal combustion engine. The EGR valve comprises a universal base so that a single base may fit many makes and models of vehicles, a diaphragm valve having two ports facing opposite directions protruding from the top of said valve, making connection of a vacuum hose to the EGR valve easier, and a back pressure transducer wherein the transducer has means to alter the vacuum required to close the valve.

Abstract: A push-button padlock having a swivel-only shackle, the free end of which is receivingly engaged by a sleeve that is reciprocable into the padlock body housing upon actuation of a thumb latch member projecting through the housing, preferably through a hole in the front face. The shackle is an inverted J-shaped shackle with the longer end entrained in the padlock body where it engages a latching mechanism which includes the thumb latch and shackle sleeve members. The thumb latch is preferably of breakaway construction and the sleeve may be rotatable. A locking mechanism of any desired type to selectively lock and unlock the latching mechanism may be employed. One preferred locking mechanism is of push-button type, and another preferred locking mechanism is a key lock mechanism, both of which are operative to selectively lock and unlock the latching mechanism that may be employed.

Abstract: A drive circuit controls application of alternating current power to a load. The drive circuit includes an oscillator which applies a high frequency signal to a first input of a logic gate. A control signal is applied to a second input of the gate to enable the gate. A first capacitor is connected to the output of the logic gate. A rectifier connected to the first capacitor rectifies the signal from the first capacitor. A low-pass filter connected to the rectifier removes the high frequency components from the signal. A solid state switch has a switching input connected to the low-pass filter output, which switches the device into a conducting state. This circuit is particularly suited for use where many solid state switches share the same common terminal.

Abstract: A punch press die (D) is used to construct rotor laminations (RL) and stator laminations (SL) for a dynamoelectric machine (1). A cavity (17) is formed in the die for a punch (15) to travel through and stamp a slot (5) in a strip (3) of material. Opposing side walls (21A, 21B) of the die form the cavity and each side wall has a longitudinal groove (25A, 25B). Each groove is inclined across the face of the wall from one end to the other, the grooves being inclined in opposite directions. In the preferred embodiment, the grooves are oriented about the center-lines of their respective side walls and have a co-planar point (MP) mid-way along their length. Material clinging to the striking face (24) of the punch (115) as it moves through the cavity tends to expand into the grooves and is drawn off from the face of the punch.

Abstract: A method and apparatus for making a rotor assembly for an electric motor wherein the rotor core of the assembly includes a stack of annular laminations having fixed molded annular end rings on opposed faces thereof with a rotor shaft extending through the core and fixed thereto by a molded rotor hub shaped in cup-like fashion at one end thereof to cooperate in forming an oil return member therewith.

Abstract: A protective sleeve for the needle of a hypodermic syringe includes a formed resilient plastic body. The body is split longitudinally to form slightly greater than a semicylinder. The body is snapped onto the barrel of a hypodermic needle before or after the needle is used. It may be slid longitudinally over the needle to protect against accidental puncture by the needle after the needle is used and locks into this position.

Abstract: A dynamoelectric machine in the form of an electric motor which can be easily converted between normal motor operation and remote actuation through a simple conversion device. The conversion device includes a remotely located on/off actuator for operating a switch attached to the motor. The switch is mounted to the motor through a simple bracket arrangement, and jumper wires are used to permit the switch element is be interposed in the electrical circuit of the motor without special tools by regular field personnel.

Abstract: A hatch cover assembly (1) for a railway car (C). A hatch cover (7) is hingedly mounted to a roof (R) of the car for pivotal movement of the cover to open and close a hatch. The axis about which hinging movement occurs is perpendicular to the center line (CL) of the car. A locking strap (31) is rotationally mounted to the cover for movement between a cover locking position and a cover unlocking position. The longitudinal axis of the strap when the cover is in its locking position is also perpendicular to the center line of the car. A latch mechanism (61) adjacent the cover latches the strap in its cover locking position to prevent movement of the strap.

Abstract: A switched reluctance motor has its stator poles divided into at least three phases, each phase having its own independently switchable phase windings wound around the corresponding stator poles. First switch elements control application of power to the windings of the first phase, second switch elements control application of power to the windings of the second phase, and third switch elements control application of power to the windings of the thirds phase. For low speed operation of the motor, the switch elements for each phase are controlled to apply power to its respective phase windings from a selected turn-on angle to a selected turn-off angle. The maximum difference in low speed operation between the turn-on angle and the turn-off angle for each phase is no greater than the angle subtended by adjacent stator poles as measured from the geometric center of the stator.

Abstract: Detoxification apparatus (1) for disposing of toxic waste material by incineration includes a closed reactive vessel (3) having an inlet (5) and an outlet (7). Waste material is introduced into the vessel in a fluid state and a laser (19) produces a high energy laser beam within the vessel. The waste material passes through the beam and the beam energy creates very high temperatures within the material that incinerates the toxic waste. The detoxified material is removed from the vessel for further processing.

Abstract: An absorbent pad for meat and poultry products and the like and a method for constructing same is disclosed. The absorbent pad includes upper and lower plastic film layers, at least one of which is perforated, and an intermediate absorbent layer disposed between the layers. The intermediate absorbent layer includes a series of juxtaposed and overlapping absorbent material fibers with superabsorbent granules dispersed throughout the absorbent layer and supported by the absorbent material fibers within interstices thereof. The superabsorbent granules are capable of absorbing and suspending liquids therein while being retained and supported by the absorbent material fibers even when the absorbent material fibers have liquid therein. The upper and lower film layers are attached to one another at least partially along opposite marginal edge portions thereof to retain the absorbent layer between the upper and lower layers.

Abstract: A modular workstation includes a work surface disposed at a height comfortable for a standing user, a back panel and first and second end panels. A file drawer is secured beneath the work surface. Optionally at least one book holder for suspending books for ready use is disposed in the file drawer. A shelf is secured to the workstation and disposed above the work surface generally at eye level of a standing user of the workstation and optionally a plurality of book holders are disposed on the shelf and pivotably secured thereto. Each book holder is pivotable from a resting position on the shelf to a reading position in which the book holder is suspended from the shelf. A display device for a computer is disposed on the shelf generally at eye level of the standing user and a keyboard is operatively connected to the display. The keyboard is disposed in a housing on the work surface and a lock is provided for locking the keyboard housing on the workstation.

Abstract: A rotor assembly for a permanent magnet motor includes a set of laminations forming a rotor body, each lamination having a first magnet slot therein. A generally rectangular permanent magnet is disposed in the magnet slot, the magnet slot of each lamination being shaped so as to receive the rectangular permanent magnet through all the skewed laminations with a minimum air gap. A method of making an assembly such as a rotor includes the steps of providing an assembly body made of ferromagnetic material defining at least one magnet slot therein. The slot is at least partially filled with a mixture of magnetizable particles in a binder. The mixture is compressed and then cured, to bond the magnetizable particles together in the slot, and the bonded particles are then magnetized in the slot to form a magnet in situ in the slot without an air gap.

Abstract: An absorptive device is disclosed as including a liquid permeable absorptive member which overlies a liquid impervious barrier member. The liquid permeable absorptive member has an outer facing layer of synthetic thermal plastic fabric and an inner backing layer with a material blend of thermal plastic and cellulosic fibers. The synthetic thermal plastic outer facing layer is ultrasonically welded to the thermal plastic fibers of the blended material inner backing layer to join the layers together while allowing liquid communication throughout the layers. The absorptive device further includes protective pockets/handles for lifting, folding and removing the absorptive device from a surface without exposure to the contents thereof.

Abstract: A fluid detecting alarm system includes a source of electric current, an alarm electrically connected to the source, a normally open switch electrically connected to the alarm for de-energizing the alarm when the switch is open and energizing the alarm when the switch is in current-conducting condition, and a medium, responsive to the presence of the fluid, for causing the switch to conduct current. In particular, a self-contained liquid water detecting system has a well with a mouth opening through a lower wall of a case. The switch takes the form of two electrodes, spaced apart, and bridged by a dry pulverulent salt, substantially nonconductive when dry and conductive when wet. The open mouth of the well is closed by an adhesive coated foraminous sheet, to retain the salt but to permit liquid water to pass through to wet the salt to cause it to conduct sufficiently to energize the alarm.