Abstract: An extensible flat belt conveyor has a fixed section (1) and at least two extension sections (2) and (3). A chain (18) is carried over sprockets (21) and (22) on the portion (2) adjacent the fixed section (1), and its lower traverse is fastened to the fixed section while its upper traverse is fastened to the movable section (3). When a chain sprocket (22) is driven the movable section (3) travels twice as far and as fast as the section (2). A control module (25) is carried on the extending end of movable section (3), and is wired back to the fixed section (1) by an electrical cable (30) which extends through saddles (28) outstanding from the chain (18).

Abstract: This face protecting mask is intended to be used in general medicine and more particularly in surgery. In its preferred embodiment, the mask has a shell or top portion provided with an elastic band fitted in the rear portion of the trim thereof; a downward front shield provided with an eye-window covered by a strip of a transparent flexible material and a mouth-opening placed below the eye-window and closed by a wad of filtering material; two side protection flaps connected to the front shield; two pairs of string for tying the mask; means for preventing mist from forming on the transparent window; and means for keeping the front shield away from the operator's face.

Abstract: The present invention is a locking mechanism to prevent relative axial movement of concentric machine parts. In this invention, opposing annular grooves in the concentric members create an annular recess across the interface of the concentric members in which a deformable ring sits. By this configuration, the deformable ring engages the annular grooves in the concentric members and mechanically inhibits the concentric members from relative axial movement.

Abstract: This invention discloses a particle separator adapted for use in a pressurized lubrication system for mechanical drives to separate debris particles from the fluid. Fluid tangentially injected into the housing impinges on the inner cylindrical wall in a manner which develops a downwardly directed spiral flow pattern, which generates a centrifugal force which firstly causes the entrapped gases to coalesce substantially in the center of the flow pattern and secondly selectively propels debris particles to the outer reaches of the pattern where the debris particles are segregated and trapped in a debris channel for subsequent removal from the system. A debris exit extends tangentially through the cylindrical wall. Apparatus for detecting and indicating the presence of debris particles, e.g. a magnetic particle detector, eddy current sensor, or optical particle detector, is preferably connected to the debris outlet. Outlets for the injected fluid and separated gases are also provided.

Abstract: A failure protected optical fluid monitor is disclosed that uses, in combination, a single prism paired systems of light sources and light detectors to determine whether or not liquid in a container is present at a predetermined level. A pair of light sources and coordinated photodetectors are fitted behind the flat end of a conical prism and each light source is adapted to direct a beam of light through the flat rear surface of the prism onto an angled face of prism. If a liquid is in contact with the conical surface of the prism, most of the light is refracted at the prism's surface and exits into the liquid. Under these conditions the light detector are not activated. If no liquid is in contact with the conical surface of the prism, the light beams will be totally internally reflected at both conical surfaces of the prism and will exit on the opposite sides of the prism from the light source parallel to its initial direction. Each light beam is then detected by a photodetector.

Abstract: A linear capacitance displacement transducer for measuring absolute displacement is formed from a coaxial variable capacitor and a precision capacitance measuring electronic circuit. The plates of the coaxial capacitor are attached to the members of an assembly whose displacement relative to one another is to be determined. Linear displacement of the members causes a linear displacement between the capacitor plates which is reflected in a linear capacitance change. A capacitor controlled oscillator utilizes the coaxial variable capacitor at its input. The capacitor controlled oscillator whose period of oscillation is been determined by the capacitance and locked in phase with changes of capacitance is utilized as a precision measure of capacitance. The period of the square wave output of the oscillator is a linear function of the capacitance of the variable capacitor at any time. The transducer may be adapted to determine the absolute position of a piston rod in a hydraulic cylinder.

Abstract: A system for supercharging an internal combustion engine. In the present invention, waste heat from an internal combustion engine heats surrounding coolant water to make steam. Steam then passes through a steam compressor, which feeds a high-velocity stream of steam to the intake manifold of the combustion chamber of the engine. This stream draws air and fuel vapor to it, and the resulting supercharged mixture is injected into the combustion chamber of the engine. The high-pressure super-charged mixture exerts pressure on the piston during the intake stroke, increases the pressure inside the combustion chamber, absorbs more heat during combustion, and gathers the engine's waste heat into a high-energy exhaust stream. As a result, the fuel burns more efficiently, less heat is lost from the combustion chamber, engine knocking decreases, thermal stress is reduced, fewer nitrogen oxide pollutants are produced, and the exhaust stream may be used for by-product power generation.

Abstract: An electronic circuit utilizing a parallel tuned resonant circuit and time variant frequency multiplying to eliminate undesired response changes of the tuned circuit due to temperature is disclosed. The electronic circuit illustrated permits accurate measuring of the change of inductance in a parallel tuned circuit where such change of inductance is due to an input parameter to be measured. The inductive component being measured may be located in environmental conditions which include a large variation in ambient temperature. While normally such wide temperature variations may substantially interfere with the measurement of the value of the inductance in question, the disclosed invention provides for compensation of such undesired changes so that the actual change of the inductance can be monitored without interference.

Abstract: This invention is a device for orally directing air while wearing an air mask. In the invention, a tube extends from outside the air mask, through the air mask, and into the mask wearer's mouth. The tube is fitted with means to seal its passage through the mask and may also include a one-way valve to prevent aspiration through it. In a preferred embodiment, the invention is manufactured separately from an air mask and may be reused after the air mask becomes worn out.

Abstract: This invention is an annular or garter spring having a welded overlapping region. In this invention, the end tips of a straight spring fit within the spaces between coils at the opposite end of the spring. This result is reached by first hooking an end tip of the spring through the first whole coil at the opposite end of the spring, then placing the opposing end tip between the first and second full coils of the first side of the spring. The coils at the ends of the spring are then clamped to so that each end tip aligns alongside the first full coil of the opposite end of the spring. When that position is reached, the spring will form a virtually perfect ring, and the intertwined coils may be welded together to maintain the garter spring shape.

Abstract: A magnetic sensor for the collection and measurement of ferrous particles through the use of an electronic tuned circuit is disclosed. The sensor contains an electrical inductance along with an integral magnet to attract ferrous particles suspended in the fluid. The ferrous particles collecting on the magnetic surface of the sensor causes a change in the inductance of the integral coil which is measured by an electronic circuit. The electronic circuit operating in conjunction with the sensor utilizes a parallel tuned resonant circuit and time variant frequency multiplying to eliminate undesired response changes of the tuned circuit due to the temperature change of the sensor. The sensor may be located in environmental conditions which include a large variation in ambient temperature. The disclosed invention provides for compensation of such undesired changes caused by temperature change so that the actual change of the inductance in the sensor can be monitored without interference.

Abstract: This device is an electronic module activated by a vehicle's existing brake light switch which, when electrically connected to a motor vehicle's brake light circuit, will flash the brake lights several times before continuous illumination. In the preferred embodiment described, the brake lights flash each time the vehicle's brakes are applied.

Abstract: A stretch frame in combination with a fabric anchoring member is formed from a lower section having a concave upper surface and a transparent flexible plastic upper section. Fabric is grasped between the sections when they are drawn compressably together. The curved surface grasps the fabric ends without damaging the fabric which is particularly advantageous with hemmed ends. The clear upper section allows the artist to visually observe the coloration of the fabric ends. The anchoring members are mounted on light weight side frame members to form a frame easily handled and placed on the artist's easel.

Abstract: A manually operated device to aid in docking a boat by clasping a dock bollard or in clasping other stationary pole-like objects. This invention comprises two outwardly rotating semicircular jaws, linked by a linkage mechanism, that clasp together and latch together to encircle an object such as a dock bollard or stationary pole. Release of the bollard or pole is accomplished by twisting the clasping device so that the sides of the jaws detach themselves from the latching position.

Abstract: A diagnostic debris sensor operating on the inductive pulse is triggered by ferrous particles floating by or attracted to a permanent magnet within a pulse-sensing coil and the entire sensor at that, the pulse-sensing coil is equipped with a second winding for either continuous monitoring or an occasional push-to-test checking of the pulse-sensing coil.