Abstract: A trestle leg assembly comprising a foldable pair of legs which may be opened out and locked into A-frame configuration. Angles are bolted to horizontal plates welded to the tops of the legs, and the bolt holes are located so that when the upright legs of the angles are positioned back to back, they clamp the sides of a standard 2.times.4, and when they are placed face to face they grip the edges of a 2.times.4 lying flat.

Abstract: A solar trough reflector including two forms with identical surfaces, preferably convex parabolic curves. The form members are carried on a longitudinal slideway in which at least one is free to slide. Positive mechanical means, such as a threaded screw, moves the slide to adjusted position on a slideway. Gripping means hold a flexible sheet with a reflecting surface tightly around the convex surfaces and then the adjusted means moves the slidable form away from the other to tension sheet. The entire slideway is pivoted on support members so that the trough so formed may be tilted to receive the direct rays of the sun.

Abstract: A Fire Safe Seal for a valve having a metallic seat ring slidable in a cylindrical internal surface with an elastomer ring sealing between the seat ring and the internal surface. An elastomer seal ring or even a highly finished surface on the leading face effects a seal with the valve closure member. An emergency seal ring having a forwardly extending, sharp annular lip with an internal chamfer is engageable, when forced, over a complementary chamfer around the trailing end of the seat ring and into the clearance around the seat ring to seal it off. A spacer ring of a heat destructible material is interposed between the emergency seal ring and the seat ring to render the emergency ring inactive normally.

Abstract: A box forming machine wherein box blanks move along a slideway while glue wheels rotating below the slideway apply spots of glue to each carton blank before it reaches the folding station. A carriage, which is slidable over the slideway, has pusher fingers to push the blank and also carries a rack which engages a gear on the glue wheel shaft. The pitch diameter of the gear is equal to the outer diameter of the glue wheel so that the box blank, and the glue applying surfaces of the glue wheels move at precisely the same speeds at any given instant whereby the glue is applied in precise areas determined by the shape of the glue applying surfaces.

Abstract: Apparatus for detecting a rate of pressure rise in a pipeline higher than an acceptable level, comprising a monitor conduit which is connected between the pipeline and a monitor chamber of uniform cross-section with a spring-biased piston or diaphragm therein. The invention contemplates means for producing a signal proportionate to the flow through said monitor conduit and, hence, to the rate of pressure change in the pipeline. One embodiment includes a device which senses the difference in pressure between the pipeline and the monitor chamber and delivers a signal when that difference becomes excessive. In another embodiment, a liquid reservoir at atmospheric pressure is connected to fill the monitor chamber on the other side of the diaphragm, so that the liquid pressure in the monitor chamber is proportionate to the rate of change of pressure in the pipeline and, when this pressure becomes excessive, an energizing signal is generated to relieve the surge.

Abstract: A pipeline swing check valve comprising a fabricated valve body with a fabricated cylindrical hub member welded therein. The clapper is hinged, not to the body, but directly to the hub member or some part thereon so that it can be mounted and adjusted for proper seating without handling the entire valve, and then installed with the hub member as a unit.

Abstract: A device for recording and monitoring medical procedures, particularly during emergency treatment, including a keyboard with several groups of keys, one group representing different medical treatments, another representing different medications, another representing various dosages, as for example in c.c.'s and one representing numerical digits. When the keys are depressed a signal is transmitted to a microprocessor which routes it to a LED digital display for visual confirmation. Then, an "Enter" key, which is pressed at the time the treatment is actually effected, transmits the signals representing treatment, dosage, etc. selected by the depressed keys to the microprocessor which transmits the data, along with signals representative of the time of day from a clock circuit, simultaneously to a thermal printing device and to a tape recorder. In the meantime, signals from an external electrocardiogram machine are continuously being transmitted to the tape recorder to be recorded on a second channel.

Abstract: A crepe cooking machine including a cylindrical metallic drum with a row of metallic cooking pads around its circumference. Infra-red burners inside the drum are supported on the shaft of the drum by mounting them on a rotary bearing. A tray for batter is supported adjacent the lower quadrant of the drum on the ascending side thereof and a transfer roll rotating therein applies batter to the cooking pads. The tray is supported on a spring-mounted movable platform and a cam follower on the platform rolls along the surface of the drum to maintain the transfer roll a fixed distance from the surface of the pads for uniform crepe thickness. A conveyor driven from the drum and positioned on the descending side thereof receives the cooked crepes.

Abstract: A hand tool particularly adapted for compressing an automobile shock absorber spring to facilitate repairs. The tool comprises a handle with a hook pivoted at the end thereof adapted to engage under a spring coil. An arm is pivoted near one end thereof intermediate the ends of the handle, and a downwardly facing hook on the end of the arm is adapted to engage over a higher coil of the spring. By pushing the handle with the hooks engaged, the hooks or jaws are brought closer together and a short extension of the arm swings across the handle, camming back a lock sleeve slidable thereon. When the arm extension and handle are in alignment, the lock sleeve is extended by a small spring to enclose the arm extension and prevent movement thereof. The compressed coil spring exerts a force on the jaws trying to separate them. This forces the arm extension tightly against the inner surface of the lock sleeve, holding the sleeve firmly in place against inadvertent retraction.

Abstract: Wall structure modules comprising a plurality of narrow, substantially ceiling high panels of integral sandwich construction with a thickness of insulation molded between two thicknesses of light weight concrete. There are tongue and groove configurations along opposite sides of the panels conditioning them to be nested together. A full-height steel stud is encased in each exterior panel and has a small bracket at the top exposed for attachment of a top plate, which fits over the panels of a complete wall section to unitize it. Interior panels are similar but the steel studs are full height in every other panel only. A transverse channel extends across the bottom of each panel on the inside, the lower flange of which is secured to the sub-floor. In the assembled wall these channels are aligned to serve as a conduit for plumbing and electrical wiring.

Abstract: A cargo carrier adapted to fit a wide range of models, makes and styles, including pickup trucks. A pair of side rails, preferably channels, are supported on legs which are to be bolted to the truck side panel. At the tops of the legs are angle mounting brackets, each with a horizontal portion which hooks over the lower flange of the channel member and an upright portion which is bolted to the web of the channel member. The front legs are bolted through a selected one of a series of bolt holes in the channel to adapt to the particular truck bed length. Load-carrying cross bars are of tubular construction and have threaded nuts welded in the ends thereof so that they may be bolted to the channel members. The channel members are in at least two sections with an intermediate, extender section being optional for long truck beds. The all-bolted construction facilitates packing and shipping for on-site assembly.

Abstract: A device for winding up elongated flexible belts comprising a reel of generally square cross-section rotatably mounted on a frame member and extending laterally from one side thereof. A crank extends from the other side and a pair of guide rollers are aligned with the reel parallel to the axis thereof and spaced closely enough to prevent twisting of the belt and to re-orient lengths of the belt which were previously twisted. The frame member is secured onto a mounting bracket so that the crank can be operated from either the right or left hand side.

Abstract: A hydraulic tool comprising a cylinder which is open at one end with a piston extending partially therein, but having a substantial portion extending outside. A lateral bore through the extending portion accommodates intake and exhaust check valves, but the bore is sealed off between them, forming an inlet chamber. Surrounding the inlet and exhaust ports and sealed at its opposite ends to the piston and cylinder, respectively, is a flexible, extendable sleeve forming an annular reservoir. A transfer duct extends from the inlet chamber to a pressure chamber formed between two seals around the piston, and a longitudinal bore opens into the inlet chamber from the extending end of the piston to slidably accommodate a manually-operated pump plunger.

Abstract: A pipeline surge relief system including a relief valve of the type that opens when line pressure exceeds pressure in a pilot chamber. A bleed valve, which is operable to evacuate the pilot chamber is opened when pipeline pressure acting against a diaphragm or piston overcomes an opposing reference signal or pressure. The reference pressure is normally maintained at the pipeline pressure by a pressure differential valve which opens to a source of fluid pressure when reference pressure falls below line pressure. However, the differential valve has limited flow capacity so that, in the event of a surge, flow of the reference pressure fluid lags behind the pipeline fluid, whereby reference pressure does not build up as rapidly at bleed valve and is overcome by pipeline pressure to open the bleed valve.

Abstract: In a valve structure wherein a cylindrical hub extends through a circular opening in the valve body into the interior, the metal around the opening is swaged outward to form a generally cylindrical weld joint portion and the hub has a skirt around it with an annular edge which is disposed adjacent to and aligned with the annular end of the swaged joint portion. A full penetration butt weld between the two annular edges secures the hub in place.

Abstract: This invention relates to a diet supplement for enhancing the coat of felines and canines. More specifically, this invention relates to a formulation consisting of a primary component, capsicum tetragonum, which is mixed with kelp and a gelatinous material. The formulation is especially useful during those periods of time when the felines or canines shed their coats. The primary effect of this formulation is to enhance the growth of the coat and intensify the color thereof during the life of the feline or canine.

Abstract: An anti-glare device for the display tube of a computer terminal or other video display tube wherein illuminated messages or images are presented on a highly reflective surface, comprising a microweave screen of fine black filaments in a fine mesh mounted in a flexible frame so that the screen conforms to and maintains contact with, the display tube. The frame is secured so that the screen covers the terminal tube, and substantially conforms to the surface thereof. The filaments are preferably approximately 0.0025 inch in diameter and there are approximately 150 filaments per inch.

Abstract: In a hydraulic riveter wherein an extension on a piston carries a jaw holder containing an annular array of gripping segments with conical outer surfaces slidable on a conical inner surface of the holder, a second piston is slidable in a bore and is operative to force the segments along the wedging surface to grip a rivet. A fluid passageway brings the bore into communication with the cylinder, so that as pressure builds up in the cylinder to increase pulling force, the second piston is forced against the gripping segments with increasing force to build up clamping force on the rivet in direct relation to the pulling force of the tool.