Abstract: A thumbless boxing glove is disclosed with a mitt section defined by a soft padded back portion and a palm portion. The back portion and palm portion define an inner cavity for receiving the entire hand of a boxer. A flexible strap is secured within the inner cavity for restricting movement of a boxer's thumb to a position for proper clenching about the boxer's fist. The palm portion is cut away to provide a longitudinally extending opening theein. Lacings bridge the opening and connect the margins thereof for tightening the glove about the boxer's hand. The lacings are secured to the soft padded back portion at a point beyond the palm portion to draw the back portion into a fist conformation upon tightening the lacings.

Abstract: A device for holding a saw chain during sharpening of the chain cutters which prevents wobble by gripping both the cutter train and the drive train of the saw chain.

Abstract: A spinner is disclosed for use with a model airplane, or the like, which has a propeller on a propeller shaft, the propeller being disposed between a thrust plate fixed to the propeller shaft and retaining means such as a propeller nut threaded onto the propeller shaft. A base plate has an axial passage for receiving the propeller shaft and the propeller nut holds the base plate between the thrust plate and the propeller for conjoint rotation therewith. An air piercing nose cone is releasably mounted to the base plate and has radial openings for receiving the shanks of the propeller blades. A locking ring is rotatably mounted on the base plate for rotation relative thereto about the axis of the propeller shaft between a locking position and a release position. The nose cone has at least one interior stud having a radial notch for engagement by a locking edge of the locking ring when in said locking position to releasably hold the nose cone on the base plate for conjoint rotation therewith.

Abstract: A liquid or gaseous impervious barrier is disclosed for use in composite structures, such as pressure vessels or the like, which include a juncture at which a first filament wound laminate meets a second member, such as a second laminate or a fixed boss or fitting. The juncture is capable of separating upon flexing of the first and second laminates or members. The barrier includes a flexible member disposed between the first and second laminates at the juncture thereof, with the barrier member being sealed, as by bonding, to the first and second laminates to prevent moisture penetration about the barrier member. The barrier member is split from the exterior thereof partially therethrough to accommodate any separation at the juncture due to flexing of the first and second laminates. A folded film sheet is disposed in the split in the barrier member to prevent the split portions thereof from adhering to each other.

Abstract: A compact, portable, clinical instrument dedicated to hemoglobin determination employs an L.E.D. light source with a peak output wavelength of about 553 nanometers and a yellow-blocking filter with a long wavelength cut-off not longer than about 565 nanometers. Thus, the relative amount of energy incident upon the blood sample in the 540 nm. hemoglobin absorption band is maximized. In addition to the L.E.D., the photodetector and the amplifying, inverting, log conversion, digital conversion, display and power supply regulation circuits are also exclusively solid-state. The display is of the reflective or liquid crystal type, and the power supply regulator is a sophisticated integrated circuit containing the equivalent of many discrete components. As a result, current consumption is minimized, and battery life and instrument accuracy are maximized. As an alternative illumination source, an infra-red L.E.D. can be employed, and the instrument is then capable of blood turbidity measurement.

Abstract: An electrically actuated locking mechanism is disclosed which employs a reciprocating lock bolt actuated by a solenoid in response to a momentary electrical signal. The lock bolt engages a latch means when extended to the locking position, and the latch means may be disengaged to unlock the device by either electrically or mechanically actuated release means.

Abstract: This is a desk top tray set comprising trays and connector-spacer members for connecting the trays in vertically stacked relationship two or more tiers high. Each tray has a versatility that makes it universally applicable either for individual use or for positioning anywhere in the vertical stack. That is to say, a given tray, when equipped with removeable and replaceable plugs for the upwardly facing bayonet ports thereof, can be used individually or as the topmost tray in a vertical stack. When the bayonet plugs are removed, however the tray can be used in the interior or at the bottom of the stack. Moreover the plugs, once removed can again be replaced, and the tray thus restored to the top of the stack or to individual use. The tray is also designed to receive connector bayonets plugged in from above or below, so that each tray can be used at the top, in the middle, or at the bottom of the stack.

Abstract: A photopolymerizable composition and photosensitive elements produced therefrom are disclosed. The photopolymerizable composition includes: (a) a monomer component, (b) a polymer component, (c) a photopolymerization initiator, and (d) an activator.The monomer component contains at least one water soluble, monofunctional unsaturated ethylenic monomer or the combination of such a monomer and at least one polyfunctional unsaturated ethylenic monomer.The polymer component includes a partially saponified water soluble, polyvinyl acetate polymer compatible with the monomer components. The polyvinyl acetate polymer contains both acetyl and hydroxyl groups and has a polymerization degree of from 300-2000. The degree of saponification of the polymer is desirably in the range of 65 to 99 percent.

Abstract: A landscaping bed divider is disclosed for forming a boundary between adjacent landscaping areas and for preventing grass or the like from rooting between adjacent areas. The divider is formed as an elongated structure having an enlarged upper section, and a flange section extending lengthwise along the upper section and depending downwardly therefrom for insertion in the ground whereby the upper section is located above the top surface of the ground and the flange section forms a barrier between adjacent landscaping areas. Upwardly and outwardly diverging lips are formed integrally with the flange section intermediate the ends thereof for securing the flange section in the ground. The flange section is corrugated above the securing lips and is a plane section below the securing lips. The corrugations define vertical reinforcing ribs on the flange section, and the plane section below the securing ribs defines a lead-in portion to facilitate locating and inserting the divider structure in the ground.

Abstract: A cuffed endotracheal tube and method designed for insertion of the tube through the mouth of a patient to provide a passage for artificial respiration. The device includes an elongated flexible air tube having proximal and distal end portions. A pair of enlargements encircle the tube intermediate the proximal and distal end portions. The lower of the enlargements is sized and shaped to fall short of fully occupying the cavity defined by the wall of the trachea and rests at or below the opening defined by the lower lateral surfaces of the larynx. The upper of the enlargements is sized and shaped to fully occupy the cavity defined by the wall of the pharynx and seals the opening defined by the superglottic structure of the glottis. At least the upper of the enlargements is an inelastic inflatable-deflatable cuff secured to the tube proximal to the lower of the enlargements. The device further includes separate inflation means for each cuff permitting the cuff to be inflated independently of any other cuff.

Abstract: An expandable syringe comprising a bag having an opening through which liquid may pass. A closed end tubular view stem projects outwardly from the bag opening and has an orifice in the side thereof in fluid communication with the interior of the bag. A nozzle has a female coupler sized to be movably mounted about the valve stem. The nozzle coupler has a valve seat against which the valve stem closed end may operationally engage in controlling the flow of liquid between the bag and nozzle. The bag may comprise a corrugated container or a shell having first and second openings and flexible pocket mounted to the shell sealing the first opening and sized for maneveur into and out of the shell through the first opening to displace liquid out of the shell. A nozzle or sprinkler cap may be detachably mounted to the shell over the second opeing.

Abstract: A sealing assembly is disclosed for effecting a sealing joint between relatively rotatable elements which include a stationary element and a rotatable shaft passing through the stationary element. The sealing assembly includes a stationary seal integral with or secured to the stationary element, the stationary seal having an annular sealing surface surrounding the rotatable shaft. A rotatable seal ring surrounds the shaft and has an annular sealing surface for engaging and cooperating with the annular sealing surface of the stationary seal to establish a seal therebetween. A rotatable collar is secured to the shaft for rotation therewith, and at least one selectively adjustable spring assembly is mounted on the collar for biasing the seal ring against the stationary seal to effect the sealing joint.

Abstract: A solid state clock for an automobile or the like, which includes display means in the form of a vacuum fluorescent display. Current is supplied from the automobile battery to the display through an integrated circuit or "chip". The voltage from the battery is doubled by an inductor coil coupled between the battery and the integrated circuit. An electrical switching means in the form of a transistor is coupled between the integrated circuit and the inductor coil for supplying converted frequency thereto. A second switching transistor and a Zener diode is provided to regulate the duty cycle of the first transistor to maintain the voltage to the display substantially constant.

Abstract: A liquid level control system is disclosed for use with a swimming pool or the like having a pool reservoir, a main drain or outlet, usually at the bottom of the reservoir, and an outlet located at a predetermined water maintenance level for the pool. The system includes fluid amplifier means positioned relative to the pool reservoir for sensing an interface between liquid and gas, or water and air, at the surface of the water in the pool and developing a fluid pressure signal when the interface falls below a predetermined level. Liquid circulation means, including a skimmer at the surface of the water in the pool reservoir is provided for circulating water from the pool reservoir between the outlet and an inlet. A portion of the water circulated by the circulation means is channeled to the fluid amplifier means for operating the same. Fluid valve means is provided which is responsive to the fluid pressure signal developed by the fluid amplifier means.

Abstract: A method of assembling a pressure sensor is disclosed. The sensor includes an aneroid capsule and an electrical circuit secured to opposite sides of a first insulator. The capsule and circuit are electrically interconnected. Second and third insulators are assembled on opposite sides of the first insulator bearing against respective ones of the aneroid capsule and the electronic sensing circuit. The subassembly so formed then is partially inserted into the open end of a hollow can having a closed opposite end with a port therein. A vacuum is applied to the port to suck the subassembly into the hollow can.

Abstract: An antenna for the short-range reception of an emitted signal comprises at least two independent sectors for the coarse location of an emission-beam source in two predetermined directions. Each sector is constituted by a waveguide having a single open face oriented in the intended direction of surveillance. A microwave diode is placed within each sector at right angles to, and at the geometrical center of, the supporting wall of the waveguide which is associated with the diode. The frequencies detected by the antenna are within the range of 10.sup.9 Hz to 30.times.10.sup.9 Hz.

Abstract: An expandable syringe comprising a bag having an opening through which liquid may pass. A closed end tubular valve stem projects outwardly from the bag opening and has an orifice in the side thereof in fluid communication with the interior of the bag. A nozzle has a female coupler sized to be movably mounted about the valve stem. The nozzle coupler has a valve seat against which the valve stem closed end may operationally engage in controlling the flow of liquid between the bag and nozzle. The bag may comprise a corrugated container or a shell having first and second openings and flexible pocket mounted to the shell sealing the first opening and sized for maneveur into and out of the shell through the first opening to displace liquid out of the shell. A nozzle or sprinkler cap may be detachably mounted to the shell over the second opening.

Abstract: A dynamometer and method for determining the power of a prime mover includes drive means mounted for rotation by a prime mover, and oscillatory means adapted to move in a linear reciprocal manner. Translation means are provided whereby the rotary motion of the drive means is transformed to linear reciprocal movement of the oscillatory means, the force imposed on the oscillatory means by the translation means being directly proportional to the angular force imposed by the drive means on the translation means. Means are further provided for applying a variable resistive force to the oscillatory means in opposition to movement thereof in one direction without generating significant amounts of friction heat, movement in the one direction being caused by the translation of motion from the drive means. The amount of resistive force imposed on the oscillatory means is correlated with the rotary speed of the drive means to determine the torque of the drive means and the power of the prime mover.

Abstract: The photosensitive composition contains a water-soluble graft copolymer of a partially hydrolyzed polyvinyl acetate grafted with acrylonitrile and optionally another vinylic monomer, a polymeric emulsion and a diazo compound. This composition possesses high resistance to solvent, abrasion and moisture and a favorable water-dissolubility as well.