Abstract: An inorganic alkali halide is employed in a binder system to catalyze the reaction between glyoxal and polyhydroxyl compounds while permitting a controlled reaction rate and control of properties. The binder system has shown good utility as a foundry core binder.

Abstract: The hydraulic valve which controls the hydraulic cylinders in a dump body mechanism has its control member coupled by a cable to the dump body to automatically shift the valve from its "raise" to its "neutral" condition when the dump body reaches its uppermost position when being raised. Two lever arms are pivotally attached to the valve body adjacent to each other, the first lever arm being coupled to the valve control member and to a manual control lever, and the second lever being coupled to the dump body cable. A first abutment is attached to the second lever in position to engage the first lever to move it from its "raise" to its "neutral" position in response to movement of the second lever caused by a pull on the dump body cable.

Abstract: A slotted resilient wedging sleeve is slideably mounted on one end of a solenoid plunger in position to wedgingly coact with an inwardly chamfered edge on the adjacent axial end of the solenoid bobbin when the plunger is drawn into the bore of the bobbin by current flow through the coil. A compression spring on the end of the plunger urges the sleeve into wedging engagement with the chamfered edge and causes the inner periphery of the sleeve to take up any play between the bobbin and plunger, thereby eliminating buzzing of the plunger.

Abstract: A magnet is attached to an interior surface of a rotary clothes dryer in a manner to provide a magnetic field which is located within the interior of the dryer drum which induces electric currents in clothes which are tumbling in the dryer to neutralize static electric charges in the clothes.

Abstract: A gelatinized amylaceous material, modified with a nitrogen containing compound such as urea, is combined with a synthetic resin, and the mixture is used as a binder which is particularly useful in producing compression molded particle board.

Abstract: A roll of reinforcing wire mesh is mounted behind the last concrete hopper on the frame of a movable concrete plank-laying machine. The wire mesh is guided forwardly between an upper portion of the hopper and the lower end of a concrete-delivering chute so that the concrete passes through the wire mesh and into the hopper. A guiding plate connected to an upright wall of the hopper guides the wire mesh downwardly beneath the hopper where its direction is reversed so that it is laid on the concrete plank while concrete is discharged thereover from the hopper.

Abstract: A cam rise hinge has a swingable strap portion which is cammed up relative to a stationary butt portion when a door on which the strap portion is mounted is swung towards its open position. A coiled wire torsion-compression spring is positioned and mounted so as to be compressed and simultaneously twisted when the strap portion is cammed up. This generates two different forces aiding each other and gravity in swinging the strap portion and door back toward closed position.

Abstract: Two relays and a push-to-start switch are mounted together on a common frame within a common housing. The cores and coils for the devices are mounted in spaced parallel relationship on the frame. Three legs which extend from one side of the frame are supported adjacent an edge of an insulated terminal strip which latter supports the terminals, contacts, and contact arms for the devices. Two legs which extend at right angles to the first-mentioned legs and which are bent from spaces therebetween are received by slots in a base plate which is also slotted to receive portions of the terminal strip and the frame to support the same. Recesses are formed in the housing member adjacent to the base plate to allow insulated conductors to enter the housing. The recesses contain teeth that bite into the insulation over the conductors to prevent them from being moved longitudinally.

Abstract: An inverted discharge chute, positioned in the interior of a silo opposite the unloading openings thereof, comprises an upright series of oppositely-disposed side wall panels each hinged to a side of the unloading opening of the silo and normally projecting inwardly thereof. An upright series of retainer panels removably connects the opposed side wall panels to form the inner end of the inverted chute, the side wall panels being swingable outwardly to cover the adjacent opening portion when the retainer panel is removed.

Abstract: Folding apparatus includes an endless grooved belt mounted for movement along a linear folding path opposite a second endless belt which is V-shaped in cross-section for coaction with the groove of the grooved belt to thereby create a fold in sheet material therebetween.

Abstract: Two panels each having an opaque background with an array of transparent dots therein are superimposed in front of a light source. The array of transparent dots in one panel is arranged to form a rectangular grid while the transparent dots in the other panel are positioned along the diagonal lines of the rectangular grid. Three transparent dots are positioned along the diagonal line between diagonally opposite pairs of transparent dots on the rectangular grid. The transparent dots along the diagonal lines are arranged to form three separate patterns, each of which may be a letter, a word or group of words, a picture, or a design. One of the panels is periodically reciprocated along the diagonal lines relative to the other panel, which causes the three separate patterns to be illuminated in sequence, each illuminated pattern being extinguished before the next pattern is illuminated.

Abstract: A conveyor flight is connected to a roller link conveyor chain by a pair of spaced pins which project transversely from the chain. The pins are removably supported in transverse sleeves of the chain and have end portions which are removably received in spaced parallel bores in the end of the flight, with grooved portions which project into opposite sides of a transverse opening in the flight. A latch member on the flight has a portion projecting into the transverse opening, and said latch portion is dimensioned to releasably engage the exposed grooves in both pins to releasably latch the flight to the pins. The opposite sides of the latch portion are notched adjacent to the grooves in the pins, and the notched portions are positioned to be moved into alignment with the pins, when the latch member is manually depressed, to release the pins so that the flight can be quickly detached.

Abstract: An electric coil is coupled across a pair of normally closed electric contacts which are attached to two electric terminals. The contacts and terminals are supported by pockets in an insulating base member which also supports a bobbin upon which the electric coil is wound. Each terminal is supported within its pocket by a pair of spaced legs having projecting spurs which bite into the margins of the pockets and prevent the terminals from being withdrawn. An armature is pivotally mounted over one end of the coil, and an actuating arm is attached to the armature for opening the contacts in response to a predetermined amount of movement by an object in contact with the actuating arm. This energizes the coil by removing the short circuit around it and causes the armature to buzz until the coil is de-energized.

Abstract: A cover flap is permanently, hingedly attached along one edge to the inner portion of an accessory side panel, the latter carrying a needlepoint foundation canvas. The flap is dimensioned to cover the inner surface of the canvas and there is means for removably securing the free portion of the flap in canvas-covering position. In one embodiment, the side panel is laminated, and the cover flap is formed by a portion of the inner side panel lamination, which portion is outlined by a U-cut.

Abstract: The lead frame for a thick film circuit has inwardly extending strip portions of substantial area which are positioned and dimensioned to substantially match and overlie selected thick film conductors to increase the current carrying capacity thereof and to act as mounting elements and heat diffusers for diodes, SCRs (silicon controlled rectifiers) and other heat-generating components.

Abstract: A plurality of flat rectangular wire frames are attached in spaced-apart relationship to a horizontal support rod and depend downwardly therefrom. Alternate pairs of frames are so spaced apart as to form vertical tie-receiving slots for preknotted ties. Lower tie-supporting rods are attached to and extend between the bottom corners of the frames to connect lower portions of the frames and provide stops for the lowermost tie in each tie-receiving slot.

Abstract: A carrying rack is supported at the front of a motorcycle over the headlight by two front supporting arms which embrace the headlight therebelow, and have lower ends positioned to be secured by standard lower pinch bolts. Rear supporting arms partially encircle the motorcycle instruments and are attached adjacent the handlebars through the use of bolts present on the motorcycle. The supporting arms include interchangeable extensions to adapt the arms to various types and makes of motorcycles.

Abstract: A solenoid coil is connected in series with an electric motor. The spring which urges the solenoid plunger away from the coil is of such strength that it will yield to the magnetic attraction of the coil when the motor-starting inrush current is flowing through the coil, but will not yield when the motor-running current is flowing through the coil. Thus the solenoid plunger reciprocates each time the motor is started. The solenoid plunger is formed of a flat sheet of magnetic material curled into the shape of a hollow cylindrical shell. The solenoid frame has a forked portion through which the plunger extends, the forked portion having sufficient depth to minimize side loading of the plunger. An end of the frame is also shaped to act as a spring in holding the solenoid parts in assembled relationship.

Abstract: A flat plate has means for connecting a fish bait to the rear portion thereof and has a link swingably attached to the front portion thereof with an eye on the end of the link for attachment to a trolling line. An upstanding fin projects from the top of the plate and has a slot located in the forward portion of the fin and extending obliquely rearwardly of the plate for receiving and detachably holding the link in a position which causes the plate to dive when it is drawn through the water. The sides of the slot are flexible and there is an adjustment screw to adjust the amount of force required to detach the link from the slot.

Abstract: A plurality of elongated opaque holders with elongated openings therein are removably connected together at their longitudinal edges by light excluding joints, there being a light source behind the interconnected holders. Opaque strips bearing translucent indicia are removably connected to the holders over the openings. The indicia may specify items of merchandise. Pre-curled plastic film tapes bearing numbers are movably mounted at one end of each opaque strip to display the price for the item. The pre-curled tapes are mounted behind holder portions having window openings through which the numbers are visible and through which the pre-curled tapes can be manually contacted to conveniently change the prices.