Abstract: A device for teaching the art of blow form molding of plastics is disclosed. The teaching device is portable and sealable, having a housing with a lid. Pressurized gas enters the housing and is directed through an orifice in a housing shelf upward into the lid. Starter plastic is placed on the shelf. A mold is held in the lid and the plastic assumes the shape of the mold as it is blown upward through the orifice into the lid. The lid has a central opening to allow the students to see the process of blow forming of plastics as it occurs. The device has a carrying handle, flanges to fasten it to a work surface, and locking toggle handles to assure a tight seal of lid and housing.

Abstract: A rear mounted utility box with a dumping pivot for a lawn and garden tractor is disclosed. A removable housing rests on a horizontal U member of a frame. A vertical plate for attachment of the frame to a yoke is mounted on one of its faces to the U's crossbar. There is a backward extending bracket attached at generally a right angle to the plate's lower edge. A pair of struts, one each spanning from generally the free end of each U member's legs to the bracket supports and stabilizes the frame. A mounting yoke with two arms is attached to the plate's other face at the plate's upper edge. One arm is connected to the tractor's frame generally beneath the tractor's seat, and the other arm serves as a stop for the housing. There is a pivot pin and pivot seat, a lock for releasably locking the housing to the frame, and a stop to limit the pivot. When the lock is released, the housing is free to pivot through the pivot seat until limited by the stop, thereby placing the housing in a dumping mode.

Abstract: This invention is a detector of volumetric leak rate from a closed system, and includes a level testing unit, a pressure vacuum pump and a safety can connected together by lines fitted with valves and gauges.

Abstract: An auxiliary mobility guide adapted to be mounted on the tip end of a cane for a sightloss person is disclosed. The mobility guide includes a frame with at least one C bracket, each C bracket having two horizontal legs connected by a vertical leg. An arm projects upwardly from the top of the vertical leg, thereby forming an inclined plane approximately equal to that plane at which sightloss users place a guide cane with respect to the ground. A bracket mounted on the arm's upper side is adapted to adjustably overfit the tip end of a cane. One freely swiveling and rollable wheel assembly is adapted to be received and retained by each C bracket. The assembly's wheel fits freely below the frame's lower horizontal leg.

Abstract: In a bellows-actuated thermostatic steam trap (A) having a bellows (41) carrying a valve member (45) of a valve (45/22) for opening and closing the trap, the bellows is disposed between connections (20/21 and 30/31) which are identical to one another so as to be selectively connectable in a steam flow line with the valve (45/22) disposed either downstream of, or upstream of, the bellows (41). The trap includes a metal housing (11/12), the mass of which constitutes at least 70% of the mass of the trap. The trap operates, when connected with the valve disposed downstream of the bellows, in a first mode in which, in normal operation, the trap discharges condensate at a temperature close to saturated steam temperature. When connected with the valve disposed upstream of the bellows, the valve operates in a second mode in which in normal operation condensate is discharged at a temperature significantly below steam temperature.

Abstract: A motor driven leg exerciser, for passive exercising of the knee, with foot and hand operated override controls is disclosed. The exerciser has an adjustable framework, an adjustable leg support, and a movable footrest which includes an override switch, a motor with housing, and controls for user and therapist. In operation, the motor drives a chain driven rod back and forth in an arc to move the leg support. As the rod reaches each end of its arc, it activates a directional switch which in turn stops the motor, causes the device to pause for a predetermined length of time, and reverses the direction of the rod. This series of motor stoppage, pause and reversal of direction are also activated by a pressure operated switch in the footrest, and by a hand held control.

Abstract: A tamper proof cartridge for use in nonelectric thermostatic valve sensors is disclosed. The usual cartridge includes a temperature sensor, operably connected to a push rod and an upper elongated stem by a spring. The upper stem terminates in an orifice sealer. The upper stem and sealer are of predetermined measurements to sealingly fit a valve orifice with a seat face. The improvement includes a lower extension of the upper stem extending below the orifice which terminates in an additional orifice sealer. The lower extension is of a predetermined length to insure that the additional orifice sealer permits flow of heat while the temperature sensor is operational and calls for the orifice to be open. The additional sealer is of sufficient width to seal the orifice. The disconnection of the sensor will cause the spring to urge the stem upward causing the additional orifice sealer to then sealingly fit the orifice, thereby restricting the heat from flowing through the valve.

Abstract: A thermostatic steam trap, which operates either as a blast trap or a liquid expansion trap, depending solely on reversal of inlet and outlet function, has a generally cylindrical housing containing an internal cavity. The housing has two parts, the first of which contains a passage leading to a valve seat and the second of which contains a passage leading, via a plurality of bores, to the cavity. Within the cavity is a bellows, filled with a volatile liquid, having a valve on its top which mates with the valve seat and connected at its bottom to the second housing part. The connection is pivotal to permit self-centering of the valve. Either passage can serve as an inlet depending on which operating modality is desired.

Abstract: A process is disclosed for treating terneplate scrap contaminated with combustibles, such as found in automobile gas tanks, to reduce the alloy content of the scrap to a sufficient level to permit the scrap to be reprocessed in an electric furnace. In the process, the contaminated terneplate metal is introduced into the feed end of a degreaser maintained at about 200 degrees F. by live steam. The degreaser includes a cutting device for downsizing the metal scrap and a vaporized caustic spray, combining with the live steam, to emulsify the residual combustibles. The metal feed exits the degreaser and is dryed while the vaporized emulsion is advanced to a condensor and separator for recycling the caustic to the degreaser and the hydrocarbons to storage. After drying, the metal feed is introduced into a glass bead blaster which removes the lead and tin from the metal feed, thereby leaving a scrap metal feed with a lead and tin percent sufficiently low to be suitable for use as a charge in a steel making furnace.

Abstract: A protective traffic barrier designed to divert motor vehicle traffic away from an object or roadway is disclosed. A base with wedge-shaped projections extending vertically from the base impedes the movement of a motor vehicle across the barrier. The shape of the base may be designed to fulfill a particular function including an opening to allow the barrier to fit over an object to be protected. A resilient, preferably plastic, cover encapsulating the base protects people or animals from contact injury with the wedge-shaped projections while allowing the projections to penetrate a vehicle tire. The cover may be coated with various materials to enhance visibility of the barrier by motor vehicle operators.

Abstract: An adjustable weight lifting device including an angled longitudinal bar fitted with an arm brace at its proximal end, and a stop at its distal end. On the longitudinal bar between the arm brace and the longitudinal bar's angle is a slidably mounted crossbar which the user grasps with his hands. Adjustable handles may be placed on the crossbar to provide different exercises for the arm muscles. A slidable carriage assembly to receive supplemental weights is mounted on the longitudinal bar between its angle and its distal end. The user achieves variety in his exercise by adjusting the crossbar, the handles and the carriage assembly, and by adding supplemental weights.

Abstract: An improvement for use in a coal stoker is disclosed. The improvement device is used with a common stoker generally including a hopper operatively connected to and aligned with a base box forming an ash pit. The base box, through its sides sloping downward from the hopper, supports a ramp. The lower part of the ramp is a perforated fire grate while the upper section is a plate that extends through the hopper bottom. A fan effecting a forced draft through the grate is operatively connected to a motor. The improvement comprises a linear reciprocation action carpet that overlies generally the length and width of the plate. The carpet's movement is effected by its connection to the motor. When coal is fed into the hopper and the movable carpet is activated by the motor, the carpet will move in a linear reciprocating direction. The coal falling on the carpet from the hopper will continually advance in an even flow from the carpet's leading edge onto the perforated grate.

Abstract: A modified manual synchronized automobile transmission for use in racing cars eliminates second gear and imparts initial rotary motion from the engine to the output shaft via a by-pass of gearing including a normally disengaged clutch. Brief engagement of the clutch causes power to feed through this by-pass gear train for just so long as the clutch is engaged and, depending on the setting of interlocked collar selector forks, will cause reverse motion of forward motion in low gear. When the car is in racing modality and moving forward in low gear, it is then possible, without further reference to the clutch, to place the main gear train in direct drive, linking the main drive shaft of the motor and the output shaft of the transmission to achieve "lock up". The invention obviates the need for a flywheel. The invention may be practiced by physical modification of an existing manual synchronized transmission.

Abstract: A glove including a brace to prevent ulnar collateral ligament injuries to the thumb is disclosed. A pocket within the layers of the glove retains the brace. The brace is a modified dorsal thumb spica beginning distal to the wrist and extending generally to the end of the thumb. The brace extends across the dorsal side of the hand, allowing free range of motion of the metacarpophalangeal joints of the second through fifth digits. The brace terminates distally from the wrist on the palmar side proximate the palmar crease. The thumb portion is contoured to resist radial deviation and extension of the thumb, but permit flexion of the metacarpophalangeal and interphalangeal joints of the thumb towards the fingers.

Abstract: A carrying case for a pre-drawn hypodermic syringe is disclosed. The carrying case is constructed of a flexible, resilient material and includes a liner made of an elastic material such as foamed polyester. The liner includes a cutout portion adapted to cradle a pre-drawn and capped syringe. The overall case is of a size and dimension only slightly larger than the syringe itself and is intended to be carried in the purse or the pocket of a diabetic to be used for the injection of insulin.In use, the syringe is extracted from the case by the user applying his thumbs to deform the lining and casing, and cause the syringe to pop up so that it may be readily grasped.

Abstract: A process is disclosed for treating tin scraps such as tin cans and home scrap, to reduce the tin content of the scrap to a sufficient level to permit the scrap to be reprocessed in an electric furnace. In the process, the scrap metal is first shredded, or chopped, to a managable size which is then utilized as a charge to a kiln. The kiln is maintained as an oxidizing atmosphere. The beginning feed end temperature is not less than 2000 degrees F. The temperature is reduced to not less than about 1650 degrees F. to convert a part of the iron-tin alloy into its epsilon phase. The kiln temperature is then further reduced to not less than 1400 degrees F. to further convert a part of the iron-tin alloy to form the zeta phase. The epsilon and zeta phases additionally produce an oxide laden dust that is then removed. As the charge moves through the kiln, the temperature is further reduced to not less than 900 degrees F. to form the eta phase of the iron-tin alloy and additionally a metallic scale formation.

Abstract: A process is disclosed for treating iron or steel base scraps such as automobile scrap vehicles to reduce the alloy content of the scrap to a sufficient level to permit the scrap to be reprocessed in an electric furnace. The process treats the entire scrap vehicle. In the process, the vehicle is first shredded, or chopped, to a manageable size which is then utilized as a charge to a kiln. The kiln is maintained as an oxidizing atmosphere at about 1700 degrees F. at the feed end to cause zinc oxide and cuprite to be formed, which are then removed as dust. As the charge moves through the kiln, the kiln atmosphere is gradually changed from oxidizing, through neutral, to reducing, and the kiln temperature is raised to about 1900 degrees F. at the discharge end. These conditions cause formations of the metallic form of copper, nickel, chromium, lead and zinc as a brittle scale. Aluminum forms a melt which adheres to the scale.

Abstract: An internal combustion engine fuel economizing device is disclosed. A cylinder having an inlet and an outlet is installed between the fuel pump and the carburetor. Fuel discharged from the fuel pump enters the cylinder inlet through an inlet conduit. The fuel stream is filtered by a filtering device located within the inlet conduit. The fuel is concentrated in the cylinder by the fuel pump pressure, and exits the cylinder through an outlet conduit. At the terminus of the outlet conduit is a restricted opening which creates a pressure drop. The pressure drop changes the fuel stream to a liquid-vapor phase which enters the carburetor for mixing with air prior to combustion in the engine.

Abstract: A pair of rotatably attached auxiliary eyeglasses is disclosed in combination with a pair of standard wire-framed eyeglasses. The auxiliary eyeglasses are attached to the standard eyeglasses by a connecting mechanism of a sleeve circumferentially and rotatably surrounding a wire bar. Auxiliary eyeglasses are fastened to the wire bar and may be rotated down over the conventional eyeglasses or flipped up and out of the wearer's vision. The auxiliary eyeglasses are held in the "up" position by a detent on the center of the sleeve which frictionally snaps over a resilient crosswire on the auxiliary eyeglasses and then prevents the auxiliary eyeglasses from slipping back down over the conventional eyeglasses.