Abstract: A ventilation system for use with devices which produce airborne impurities, particularly cooking grills, deep fat fryers and the like. A first blower supplies untempered makeup air. A first plenum, which includes a first perforated wall having a plurality of openings therein, supplies air from the first blower, via a duct, into space beneath an upper front portion of a hood. A second plenum, which includes a second perforated wall having a plurality of apertures therein, supplies air from the first blower, via a duct, into space beneath the hood to cool air and impurities, which may include flue gas, moving upwardly in space adjacent the second perforated wall, the apertures in the second perforated wall being positioned to discharge air substantially horizontally into this space. A second blower is provided for exhausting air and impurities from the hood via a duct and an exhaust plenum.

Abstract: A leaf stripping machine for tobacco and the like which consists of a framework with a large pinwheel rotatably mounted on a vertical plane at one end of the framework and a stripping implement with a V-groove mounted on a track oriented perpendicular to the plane of the pinwheel. A plurality of tines project horizontally from the face of the pinwheel near its perimeter so that the stock of a tobacco plant or the like can be skewered thereupon. After securing a plurality of plants on the tines, the pinwheel is rotated to position each plant one after another to engage the stripper. When the stripper is driven forward its V-groove defoliates the stalk. When the swath of tobacco is removed, then the stripper operator extracts the stalk from the pin and places it on a pile at the back end of the machine. The pinwheel is then rotated and the operation repeated.

Abstract: A pneumatic thread undercutter to sever both the needle thread and the bobbin thread in a lock stitch type sewing machine. The apparatus works in conjunction with a pneumatically controlled sewing machine, and includes a frame disposed beneath a sewing area surface, a pneumatic cylinder carried on the frame having an extensible rod upon which a moving blade is operatively connected so as to translate in a reciprocal lateral manner. The moving blade includes a cutting notch, a pull hook and anvil hook orifice cooperating with a ramp area on a bobbin case to engage both the bobbin thread and needle thread such that one thread is cut before the other. A stationary knife is included to cut the second of the two threads so that at the end of a predetermined sewing endeavor the thread attached to a work piece can be expeditiously cut and a second work piece can be engaged in a rapid manner.

Abstract: A drilling head of the claw-type which eliminates the need for a pilot bit. The configuration to be described hereandafter causes the drill head to run more smoothly and straighter than those claw-type drills having a pilot. The structure includes a threaded stem portion for threadedly affixing the drilling head to a drive source, a platform extending from the stem portion upon which plural drill bits are affixed on a top face thereof in which the platform is formed from three sectors of pyramid shape, and the recess on the top face of the sectors is provided with further bits for cutting outside of the drill head itself.

Abstract: An apparatus for beveling a marginal edge of a sheet of glass which includes a table having a top opening in which a support plate for the glass sheet to be bevelled is disposed with a grinding wheel mounted on the table over the support plate, the grinding wheel being fixed to a shaft drivably connected by a belt to a drive motor on the table and the shaft being rotatably mounted in bearings supported on an adjustment device mounted on the table by means of which the horizontal, vertical and angular positions of the shaft and therefore the grinding wheel may be set together with a guide on a support plate which the marginal edge of the glass sheet to be bevelled engages as the glass sheet is moved slidably on the support plate with the glass sheet marginal edge in grinding engagement with the peripheral edge of the grinding wheel.

Abstract: Disclosed herein is an ostomy leakage represser adapted to place a diversion pouch in good sealing engagement with a stoma implanted in the user, the represser being suitably fashioned to provide pressure along a lower surface of the stoma so as to effectively eliminate any leakage that normally occurs. The represser includes a belt connected to a body portion having substantially triangular shape, an apex of a body portion provide with a circumferential lip having in a preferred form an open gap along a top area adapted to frictionally engage an annular spacer provided on most diversion pouches, the body portion suitably formed to provide pressure on an area below the stoma so that a good seal is effected between a flanged opening on the diversion pouch while simultaneously providing a pressure area below the stoma to assure complete drainage.

Abstract: A water power unit for a dam which includes a downwardly directed conduit for directing water from the body of water from the body of water retained by the dam to a water turbine or the like for generating power, the conduit including an upstanding U-shaped section having a bight portion extending above the level of the body of water together with a pump for pumping water entering the conduit around a check valve in the conduit to initially fill the conduit U-shaped section with water so that an increase is obtained as water flows in the conduit to increase the power output of the turbine together with a siphon action obtained within the U-shaped section during the operation of the turbine for further power increase.

Abstract: A vacuum responsive injection system for engines which includes a vacuum conduit extending from a carburetor to a crankcase ventilation valve, injection means in said vacuum conduit connected to a metering means through a tube, the metering means is operatively attached to a liquid containing reservoir having an alcohol water mixture, the metering means includes an air bleed which allows the ratio of liquid to air to be finely varied so that upon demand by the engine through the vacuum, the fluid formed from alcohol, water and air mist can be introduced within the engine for increased mileage, less oil consumption, and removal of carbon.

Abstract: Disclosed herein is a portable respirator and method of using same which includes a container having an enlarged opening that is flared outwardly, adapted to fit over the mouth area of a person requiring resuscitation, a plurality of unrestricted fenestrations closely placed together and disposed at an end of the container remote from the enlarged opening, in which the fenestrations are grouped in such a manner that a palm area of a rescuer's hand can cover all fenestrations and thereafter applying the same hand's fingers along a resilient deformable body portion from the opening to the fenestrations so that when the palm area occludes the fenestrations. Deforming the body portion will provide an air pulse into the mouth of a person to be rescued. Optimally, the person to be rescued nostrils are closed with the other hand so that the air pulse will have maximum impact.

Abstract: A spring device for a shoe such as a skate shoe having a sole plate provided with threaded bolts for mounting wheels which includes a unitary strip of spring metal having upper and lower portions arranged in vertically spaced, parallel relationship and having a length corresponding generally to the distance between the toe and heel of the shoe, the upper and lower portions being interconnected by a rearwardly and downwardly inclined intermediate portion with apertures in the upper portion for accommodating the bolts so that with the use of nuts the upper portion may be detachably mounted on the sole plate thereby providing a spring action for movement on the ground by the wearer of the shoes.

Abstract: Disclosed herein is a counterbalance weight system for use with exercising machines in order to negate the weight that is intrinsic to a weight lifting structure, so as to provide a true indication of the amount of work being done. The machine is defined by a framework which supports a plurality of weights the magnitude of which is selectively adjustable, an area to accommodate a user so as to lift the weights, and counterbalance weights operatively connected and opposing the preceeding structure so that the weight of the associated hardware necessary to perform the exercise is effectively cancelled out, and the weights lifted and selectable are solely that which constitutes the work of the exercise.

Abstract: An lower abdominal twist machine including a frame having weights slidably mounted in a cage with the weights drivably connected to a rotatably mounted seat for an individual together with a handgrip on the frame which is grasped by the individual in a seated condition on the seat so that the seated individual grasping the handgrip may twist the lower portion of the body in either direction rotating the seat against the resistance offered by the weights thereby exercising the abdominal region of the individual's torso.

Abstract: A circuit for limiting transient intermodulation distortion in a amplifier system including an operational amplifier having a gain stage and a feedback network connected between the gain stage and the amplifier feedback port together with a pair of oppositely poled diodes, connected in parallel and coupled by means of capacitors between the amplifier output port and feedback port to limit the operational amplifier going to the supply rails under non-linear conditions thereby reducing the slew rate recovery time and therefore the amount of transient intermodulation distortion.

Abstract: Apparatus for exercising the inner and outer thigh muscles of an individual which includes a frame having a seat and a weight cage of a weight movable upwardly from a rest position with pivotally mounted leg receiving frames for accommodating the legs of an individual on the seat movable independently in an arcuate path from a predetermined rotary position corresponding to the rest position of the weight by lateral movement of the individual's legs with a chain and sprocket drive for drivably connecting each leg receiving frame to a respective D-shaped cam connected in turn to the weight so that pivotal movement of each of the leg receiving frames from the predetermined rotary position moves the weight upwardly to provide resistance to such lateral leg movement thereby exercising the inner and outer thigh muscles of the individual.

Abstract: A snow shuttle for use in winter recreation upon hills and the like in which the shuttle includes a forward steering section, a frame area pivotally connected thereto, a seating area disposed upon the frame, and a braking apparatus similarly carried on the frame so that the shuttle can be controlled both by steering and braking. Ribs are provided on the bottom face of the steering mechanism and the frame for added stability and control.

Abstract: Disclosed herein is an upper abdominal sidebend machine including a base frame which carries a weight supporting cage thereon, a seating area supported by the base, a roller trackway which revolves about the seat having an upwardly extending transverse track which supports a pair of upwardly extending pads thereon whose displacement from a center area on the roller is adjustable so that an exercisor may loop one arm over the pad and one arm in front of the pad to provide an exercise in which rotation about the seat does work on the upper abdomen. The roller is connected by means of a sprocket to a plurality of weights through chains and sprockets and a cam so that the twisting motion that one undergoes in performing the exercise can be met with weighted resistance to reduce the number of repetitions required in conditioning this area of the body.

Abstract: An inclined static deoiler and conditioner for treating ore such as coal, phosphate, and the like which combines with liquid to form a slurry prior to froth floation which includes in combination a trough having plural baffles therein which are oriented to cause turbulence in the slurry. End walls on the trough are provided having an inlet and outlet adapted to fasten to piping in which the maximum flow rate is determined by the piping diameter such that liquid entering in the trough is assured of staying substantially at or below the vertical height of the baffles. The through flow within the device is controlled by angulation of the trough which is variable, and baffle configuration.