Abstract: A motor drive system and linkage arrangement for a hand prosthesis, wherein the prosthesis has at least one finger member extending generally tangentially with respect to a worm gear wheel secured to the prosthesis and driven by a drive motor and a worm gear located longitudinally within the finger to engage the teeth of the tangential worm gear wheel. When the drive motor runs the worm gear, the finger moves around the worm gear wheel toward or away from another finger member and/or a natural finger to open and close the prosthesis hand's grip. In an alternate embodiment, the drive motor and worm gear arrangement contained in one finger is connected by a linkage to the root portion of at least one other motorless finger mounted for pivotal movement on the prosthetic hand.

Abstract: Apparatus for cleaning a moving web, such as paper, paper board or cardboard, prior to printing or processing wherein a tacky wiper cloth engages the moving web to collect contaminating particles. The wiper collection surface is renewable and the apparatus firmly holds the wiper in contact with the web yet is releasable during web threading procedures.

Abstract: A smart module circuit board carries a programmable microprocessor and a plurality of relay type interface circuits for use in organizing relatively high voltage input devices and output devices into a complex system wherein a programmed combination of input device signals determines when and if to energize one or more output devices in the system. The interface circuit comprises input and output stages which operate on logic level voltages and which are decoupled by opto-couplers from a relatively high voltage energization circuit which passes through a relatively high voltage electrical device. The energization circuit comprises a triac which is operated by the output stage in response to outputs from the microprocessor, a manual switch connected in parallel with the triac so that a given electrical load device can be manually activated and a multi-colored LED for indicating the conditions of the input and output circuits individually and in combination.

Abstract: An overvoltage protection circuit passes all the normal operating voltages and limits the peak voltage increase during a lightning impulse to a level comparable to the battery voltage. Normal operating voltages of 200 V peak are passed and under lightning impulse conditions the voltage increase is limited to about 90 V. The circuit has first and second protectors connected in series, the first protector being a standard thyristor protector and the second being a gated bidirectional thyristor connected to a diode and a capacitor.

Abstract: A molded plastic pail and a snap-on closure having a flared skirt the bottom of which is manually engaged for removal purposes. A peripheral ring structure integral with the pail sidewall immediately underlies the skirt of the closure when in the sealing relationship with the pail thereby to block access to the skirt. However, a section of the rib structure essentially midway between the bail ears includes a break away panel connected to the rib structure by frangible webs and a living hinge so that it may be pivoted outwardly and downwardly away from the pail wall to afford access to a sufficient portion of the closure skirt to permit removal. The break away section thereafter serves as an integral handle to facilitate pouring from the container.

Abstract: A self-wringing mop is disclosed comprising an elongate handle with distal and proximal ends, a sleeve slidingly and rotatably disposed on the handle, and a swab both connected to the sleeve and removably threadingly connected to the distal end of the handle. The mop further includes indicia thereon, the indicia identifying at least a direction of rotation of the sleeve necessary to wring the swab.

Abstract: An improved coal pulverizer classifying system including a classifier cone extension to protect coal flow into the pulverizer from the annular fine-lifting airflow from the pulverizer throat. The classifier cone extension replaces traditional intermittent discharge structure, improving flow through the classifier system and reducing the disruptive effects of the discharge on the annular flow from the pulverizer throat. The pulverizer feedpipe outlet is located in the classifier cone extension, but above the throat of the extension to prevent interference between the feedpipe and the flow of coal through the extension. In a preferred form an adjustable clearance cone is mounted for vertical adjustment on the lower end of the feedpipe.

Abstract: A sensor detects the absolute angular position of a rotatable clamp arm between full opened and full closed positions. The sensor is coupled to a clamp arm pivot shaft to provide output signals corresponding to the absolute position of the clamp arm. One or more programmable angular position set points are setable at angular positions in advance of the full open and full closed positions of the clamp arm. Outputs are generated when the clamp arm reaches and/or exceeds each set point.

Abstract: A process for recovering quantities of carbonyl compound material from spent solvent-in-water emulsions derived from paint overspray treatment and capture systems in which the spent solvent-in-water emulsion is removed from the paint overspray treatment and capture system and fed into a reaction vessel. The reaction vessel employed includes an outer housing defining a reaction chamber and a plurality of mixing blades movably positioned in the reaction chamber. The surface area of the mixing blades are maintained at a temperature sufficient to generate volatilized carbonyl compound. The interior of the reaction vessel is maintained under a vacuum. The spent solvent-in-water emulsion is processed in the reaction vessel for an interval sufficient to generate volatilized carbonyl compound.

Abstract: An extrusion die for use in producing aluminum alloy articles of extruded shapes or tube having a void with defined internal dimension, said die comprising:i) a die plate with at least one die cavity defined by a first die bearing surface which defines an external shape for such extruded article;ii) an extruding mandrel secured in said die cavity and having a second die bearing surface which defines an internal shape for such extruded void;iii) a truing mandrel positioned beyond said mandrel second die bearing surface for correcting internal shape of such void and providing such defined internal dimension, said truing mandrel having a forming surface defining an external dimension relative to an external dimension of said extruding mandrel for correcting of internal shape where said truing mandrel external dimension is at least equal to a lower limit for finish tolerance on such internal dimension, said truing mandrel forming surface being spaced from said extruding mandrel bearing surface by a reduced portio

Abstract: An apparatus assembles a heat exchanger core having first and second side plates. The first and second side plates cooperate with first and second end plates to sandwich a plurality of layered tubes and fin plates therebetween. The apparatus includes a lifting mechanism for stacking the tubes and fin plates with respect to one another to define a layered stack having opposite sides and opposite ends. A side plate assembling mechanism associates the first and second side plates on opposite sides of the layered stack. An end plate assembling mechanism associates the first and second end plates on opposite ends of the layered stack.

Abstract: Materials not releasing gaseous organic materials during use are used as a dry-type sealing material such as a gasket disposed upon mounting an air filter to an opening of a ceiling or the like, a wet-type sealing material filled and used in a gap for connecting wall materials or partitionings, a vinyl chloride sheet or a vinyl chloride cloth as a facing material for walls and floors. Specifically, a carboxylic acid ester having a molecular weight of not less than 400 is used as a plasticizer, a phenolic compound having a molecular weight of not less 300 is used as an antioxidant, an aliphatic hydrocarbon having not less than 19 carbon atoms (for example, microcrystalline wax) is used as a lubricant, and an alkylamine ethylene oxide adduct having a molecular weight of not less than 350 is used as an antistatic agent.

Abstract: A cutting tool and shank is disclosed, the shank including a seat for receiving therein the cutting tool, the seat having at least two non co-planar surfaces. The cutting tool and shank further include a spring-biased ball projecting from either the shank or the cutting tool and engageable with a cavity provided within the other of the shank or cutting tool so as to urge the cutting tool into the seat of the shank. A detent element may also be provided which, according to one embodiment of the present invention, comprise a groove formed in one of the cutting tool or the shank, and a flange formed in the other of the cutting tool or the shank, the flange being receivable within the groove to restrain the cutting tool on the shank. The cutting tool may comprise a cartridge including at least first and second mateable halves. According to this embodiment, a bolt releasably engageable with the shank may be provided for removably capturing the first and second halves of the cartridge in a mated condition.

Abstract: An improved step aerobic platform comprises a single handrail having an integral foldable seat that locks in an upright position when in use, and can be retracted and folded between legs of the handrail when not in use.

Abstract: A film drive mechanism for positioning film relative to an aperture in a riser block of a photographic printer. The mechanism provides the usual ability to adjust each frame of film in the X axis paralleling the direction of film movement, adjust each frame in the Y axis transverse to the direction of film movement, crop each frame by selectively varying the size and configuration of the riser block aperture, and selectively move each frame between portrait and landscape formats. Additionally, a mechanism is provided to rotate each frame of film relative to the aperture in the riser block so as to correct for exposures made with cameras that are not level.

Abstract: The invention relates to a device for securing decorative strips and spectacle lenses with one another or for fastening decorative strips on frames. The fastening herein occurs by means of a tongue and groove system. So that the decorative strips do not fall out of the groove or tongue, the groove or, respectively, the tongue is terminated by a lateral stop element. This stop element is connected for example by means of screw or snap connections with a spectacle frame.

Abstract: A kettle includes a water tank, an electrical element under the bottom of the tank, connecting members to be connected to an electrical power supply and arrangements for regulating the operation of the element. The regulator arrangements and the connecting members include pins to be inserted in a connection module. Electrical connecting wires for connecting the pins are accommodated inside the connection module.

Abstract: A system for housing secondarily contained flexible piping comprises a flexible conduit resistant to mechanical stresses, the conduit adapted to surround the secondarily contained flexible piping. The conduit comprises a metallic core and a thermoplastic jacket. The secondarily contained flexible piping comprises an inner supply pipe, wherein the inner pipe is comprised of a first, inner layer fabricated from nylon, a second, intermediate layer comprising a nylon reinforced wrap, and a third, outer layer comprising a polyethylene material, the nylon inner material, the nylon wrap and the polyethylene outer layer being extruded simultaneously to form the inner pipe.

Abstract: An electrical power cable includes a central ground conductor surrounded by an insulating material layer. An inner grounded shield is formed on the surface of the ground conductor or between the ground conductor and line and neutral conductors. A plurality of insulated line conductors and a plurality of insulated neutral conductors are circumferentially disposed in an annular arrangement about an insulation layer on the inner shield. The plurality of line and neutral conductors are each disposed circumferentially side-by-side in separate groups of line and neutral conductors. The total cross-sectional area of each group of line conductors and neutral conductors is substantially equal to the total cross-sectional area of a single large conductor of equivalent ampere rating. An outer shield is disposed about the line and neutral conductors and covered by an outer insulating layer.

Abstract: An apparatus is disclosed for automatically cutting stock material for a grid. The apparatus comprise at least one saw assembly positionable to selectively cut the stock material into individual grid elements for the grid, a conveyor system operable to present the stock material for cutting by the at least one saw assembly, and a computer controller operable to generate instructions directing the operation of the conveyor system and the positioning of the at least one saw assembly so as to automatically cut the stock material into the grid elements.