Abstract: A method is disclosed for coating bullets to reduce the "leading effect" thereof on the gun bores of firearms by coating each bullet, prior to loading, with a dry film lubricant composition, the lubricant composition including molybdenum disulfide dispered in a suitable carrier such as a synthetic resin dissolved in a volatile hydrocarbon solvent which evaporates on exposure to the atmosphere leaving a thin coating on each bullet. The lubricant coating has a further advantage in that it does not clog the mechanism of automated machines for loading bullets into shell casings therefor.

Abstract: Method and apparatus for sorting and classifying lumber in which multiple signals relating to length and quality of the lumber are fed to a computer which is programmed to select optimal cut-off length and optimal quality and to feed these selections to cutting or sorting apparatus for appropriate operations to be performed on the lumber.

Abstract: An electrostatic precipitator having an inner electrode extending along the axis of a tubular outer electrode. The inner electrode includes an elongated support electrode connected to a disc shaped discharge electrode having a transverse dimension larger than the transverse dimension of the support electrode. A high potential applied between the outer electrode and the support and discharge electrodes produces a relatively thin, radially and circumferentially uniform electrostatic field between the discharge electrode and the outer electrode, and a non-corona producing electric field between the support electrode and the outer electrode. A particle entrained gas is directed into the outer electrode at the discharge electrode end. The particles are charged by the thin, intense electrostatic field adjacent the discharge electrode, and are subsequently accelerated toward the outer electrode by the electric field extending between the support electrode and the outer electrode.

Abstract: Vapor explosions caused by contact of two liquids having differing temperatures, such as occurs in a chemical recovery furnace containing molten smelt when water accidentally contacts the molten smelt, are prevented by subjecting the water/molten smelt interface to sufficient radiation to prevent such explosions by creation of multiple bubble nuclei which result in non-explosive nucleate boiling.

Abstract: A "beam stroker" type of honing machine which can, at the operator's option, be power stroked by means of a double-acting pneumatic cylinder or manually stroked. Both travel limits can be varied by the operator. A hydraulic double-acting cylinder system functions to limit the stroking speed and has a needle valve adjustment to vary the speed.

Abstract: The interconnectable border frames with protrusions and grooves are also provided in an improved wooden form for panels which can be combined to form the essential roof, wall, and floor components of a complete building. The floor and wall panels uniquely provide for selectivity in the location of the floor panels along the vertical height of the wall panels.

Abstract: A multi-purpose weight lifting type exercising device is disclosed for lifting weights with a cable supported by an upright frame. An exercise beam is pivotally connected for vertical movement to a cross member of the frame, the cross member secured to the frame intermediate the upper and lower end. On the free end of the exercise beam is an adjustable exercise bar which can be employed in a first position for standing military press bar and in a second position as a bench press bar. The exercise beam is secured to a vertically displaceable weight member positioned beneath and secured to the exercise beam. A cable secured at one end to the weight member through the exercise beam extends through a cable guide member secured to the frame. The outer end of the cable is secured either to an exercise bar employed for rowing exercises, shoulder shrugs, etc. or to an extension cable which leads to a leg exercising machine secured to a bench.

Abstract: A board game of skill which has an upper transparent stationary surface, a transparent first movable underlying member with a partial direction-movement pattern, a lower opaque second underlying movable member which has a complimentary partial direction-movement pattern in one of a number of varied positions. The uppermost stationary transparent surface is provided with peg holes for moving pegs or pieces along color coded allowed direction-movement patterns formed by the two movable underlying members. Selection of the underlying member position to determine the alignment of the partial direction-movement patterns and the number of movements allowed is determined from random selection dice mounted in a centrally supported revolvable dice box.

Abstract: A winch transmission and control which through selective energization of separate parts of the transmission enables the winch to automatically change to a different output speed, produce a fully braked condition, or a freewheeling condition. Reversing of the direction of the drum occurs through reversing the direction of the power input motor to the transmission. A unique, single lever hand control is operatively associated with means for energizing the clutch mechanisms which control the various parts of the transmission as well as control the reversibility and stroke of a pump which drives the input motor. The hand control assures a proper correlation between braking and powering of the drum. Another unique feature is a combination cable guide and external structural tie bar for a hollow drum of a towing winch used on a towing vehicle for strengthening the winch drum case. Another unique feature is a technique for installing large, slow-speed ball bearings in a bearing race.

Abstract: Circuit means for keying the transmitter of a flasher type depth sounder when the flasher arm motor is off. An alarm circuit is included in the depth sounder which sounds an alarm if the vessel moves away from a preset depth. When the flasher arm motor is on, a pulse is supplied by a magnet on the flasher arm passing over a pickup coil in the circuit. When the flasher arm motor is off, the pulse generating circuit is designed to provide a transmitter keying signal as well as to reset the alarm.

Abstract: A hyperbolic geometry model formed by several pieces of flexible material joined along their edges in a predetermined manner. In one embodiment, the pieces are polygons arranged so that the sum of the angles about each vertex or corner exceeds 360.degree.. In a second embodiment the pieces are elongated strips joined edge-to-edge about a center line with the inner strips being comparatively straight and the strips away from the center line having a progressively decreasing radius of curvature. In a final embodiment the pieces are arcuate strips joined edge-to-edge about a center point with the radius of curvature of the strips progressively increasing to a finite limit away from the center point. The resulting hyperbolic geometry model is a sheet of flexible material which, because of its increasing fullness away from the center of the model, exhibits geometric properties which illustrate the characteristics of a hyperbolic plane.

Abstract: A self contained solar beacon for reflecting sunlight over a large number of widely scattered reflection paths. The beacon includes three reflector arrays secured to the outer ends of respective horizontal reflector shafts which extend radially from a central mounting plate. The mounting plate is rotated about a vertical axis by an electric motor which is connected to the mounting plate through a drive shaft. The reflector shafts are rotatably carried by the mounting plate, and their inside ends terminate in respective friction discs which roll along a stationary friction plate. Consequently, as the motor rotates the mounting plate, the reflector arrays simultaneously move along a horizontal, circular path while rotating about their radial axes. This combination of reflector array movement coupled with the large number of individual reflectors in each array produces a large number of widely scattered reflection paths.

Abstract: A system for controlling the moisture content of moisture absorbing fruit products to achieve a uniform moisture content of the product. The continuous flow of raw product in chip, diced, extruded or comminuted form initially enters a rotating reel where the product is tumbled and exposed to a high-humidity environment for increasing the moisture content beyond a target value. The added humidity can be in the form of steam or water spray. The product continuously flows from the reel wherein moisture is added to a drying reel which reduces the moisture content of the product to specific target values. Although the original moisture content of raw fruit product entering the system may vary considerably, contact between product during mixing in the moisture adding and drying reels causes the final product to assume uniform and consistent characteristics.

Abstract: A coupling for air and electrical connections between a vehicle and a trailer having two telescopically connected cupped sections with concentric sealed air passages when the sections are interconnected. Both the electrical and pneumatic connections are made simultaneously with the telescopic interconnection.

Abstract: A continuous system for disinfecting waste water streams, such as sewage and streams containing organic matter and removing suspended solids therefrom is disclosed. A waste water stream is passed into an electrolytic cell open to the atmosphere and between a series of electrically charged parallel electrode plates. A controlled amount of electrolyte such as sodium chloride is added to the waste water stream before it passes through the electrolytic cell. During passage between the electrode plates a foam is generated which entrains suspended selected nutrient solids contained in the waste water stream, the foam removed by skimming and/or suction means. The treated water discharged from the electrolytic cell is filtered to remove additional non-nutrient suspended solids not entrained with the foam. A portion of the treated water from the electrolytic cell is recycled and reinjected into the influent stream.

Abstract: A modular rack is formed of two identical end members each with three vertically spaced openings. The end members are interconnected by tubular storage compartments which fit within each of the openings. A rectangular display card is fitted into a vertical slot laterally adjacent each of the end openings in at least one of the end members with the display card being adapted to carry a sample of the merchandise within the adjacent compartment. Additional rack units can be stacked on top of one another or can be connected together in endwise adjacency. When racks are connected in endwise adjacency the vertical slots of the two abutting end members can be coaligned so that a splicing board can be interfitted into the slots to lock the abutting end members together.

Abstract: A hydraulic flocculation system having a first stage tank receiving a liquid through an elbow conduit having an upwardly directed outlet. Liquid from the first stage tank flows into a pair of second stage tanks through respective elbow conduits also having upwardly directed outlets. Liquid is discharged from each of the second stage tanks into a third stage tank through respective elbow conduits having an upwardly directed outlet. Each outlet of the conduits is covered by a plate which slidably receives a plurality of upstanding rods secured to the conduits so that the plate can move toward and away from the outlet as the flow through the conduit varies. The plate acts as a constant pressure-loss valve to produce a head loss which is proportional to the weight of the plate in order to maintain the G-factor of the system relatively constant as the flow rate of liquid through each of the conduits varies.

Abstract: A system for testing the dental pulp of a tooth by electrically stimulating the pulp with a pulsating signal having a continuously increasing amplitude. The system includes a probe having an electrode adapted to the tooth, and a contact device for sensing when the probe electrode makes contact with the tooth and for increasing the amplitude of the stimulus from an initial value. The intensity continues to increase as long as the probe electrode is in contact with the tooth. The electrical stimulus may be generated by a voltage controlled pulse generator driving the primary of a transformer, with the secondary of the transformer connected to the electrode probe. The transformer has a relatively low cutoff frequency so that the amplitude of the signal across the secondary is proportional to the pulse width of the incoming signal. Consequently, as the control voltage to the voltage control pulse generator increases, the amplitude of the pulses across the secondary also increases.

Abstract: A combustion apparatus having primary and secondary combustion chambers burns waste wood with an optional third chamber. The third chamber is used to blend the combustion products down to the desired process temperature. High pressure swirl air is admitted tangentially to the primary chamber above a burning fuel pile. The swirl air reacts with a small proportion of the pyrolized gases to maintain a steady temperature at the exit from the primary chamber. The swirl air also centrifugally separates particulate matter from the gas stream leaving the primary chamber. The total quantity of underfire and swirl air is closely controlled to maintain substoichiometric conditions in the primary chamber. Secondary air complete combustion of the pyrolized volatiles in the secondary chamber. The secondary air is admitted tangentially to establish a rotating mass of relatively cool combustion air adjacent to the walls of the secondary combustion chamber.

Abstract: A system is provided for automatically clamping a cable drum in the event of mechanical failure of the drive train that connects the cable drum to its prime mover. The system monitors the mechanical continuity of the drive train by comparing the number of revolutions of the prime mover with the number of revolutions made by the cable drum in the same time interval. The system actuates a caliper disc brake mounted with the drum if a discontinuity of the drive train is detected. In the electrica system, shaft encoders are used on both the cable drum axle and prime mover shaft. The cable drum encoder is selected such that the number of pulses it produces per revolution of the cable drum is approximately equal to the number of pulses produced by prime mover shaft encoder per revolution of its shaft divided by the speed reduction ratio of the drive train.