Abstract: A visor for mounting on a helmet adapted to be worn by an individual, includes a substantially transparent visor having an inner concave surface, and, with reference to an orthogonal, right-handed xyz Cartesian coordinate system of spatial reference having its origin located on the inner concave surface and its z-axis parallel to the line of sight of the individual wearing the helmet, the inner concave surface being defined by a cross-section of the visor in the x-axis of reference, which is symmetrical about both the origin and the y-z plane of reference, having one-half of the cross-section of the visor in the x-axis of reference being a first circular segment containing the origin at one end and connected to its opposite end to one end of a first paraboloid segment which is connected at its opposite end to one end of an elliptic segment whose opposite end forms a side boundary of the visor, and by a cross-section of the visor in the y-axis of reference having a second circular segment, one end of which for

Abstract: Dryer-added fabric conditioning articles and methods utilizing a fabric softener agent and a polymeric soil release agent. More specifically, damp fabrics are commingled with softener active and polymeric soil release agent in an automatic clothes dryer and are provided with a soft, antistatic finish and soil release benefits concurrently with the drying operation. The softening and antistatic soil release agents herein are preferably employed in combination with a dispensing means adapted for use in an automatic dryer.

Abstract: A "dry" two sided vertical structural butt glaze system for window structures wherein a modular frame assembly is fabricated and glazed off-site. The assembly is installed in the window structure from the building interior and is provided with gasket strips which seal the exterior butt joint between adjacent panels of the frame assemblies. Exterior scaffolding and caulking operations are eliminated.

Abstract: The invention relates generally to products useful for home laundering, and more particularly to a product which incorporates a prespotter with a detergent and having one or more of the following separate functions: detergency, fabric softening, stain removal, bleaching, and bluing; with the advantage being that both the detergent and the prespotter are uniquely packaged together as one product, negating the need to purchase and store separate products for each end use function, and also, unavoidably providing presentation of the prespotter to the detergent user at the time of laundering. The invention also concerns methods of use of such products during laundering.

Abstract: Novel imidazolinium compounds, and a method of using the compounds for softening and conditioning fibers, hair and skin and as surfactants, and debonders for cellulose pulp having the general formula: ##STR1## wherein R.sub.1 is an n-alkyl, branched alkyl, alkenyl, branched alkenyl alkadienyl or branched alkadienyl group containing 8 to 21 carbon atoms; R.sub.2 is a radical selected from the group consisting of (a) --OH, (b) amide radicals each of which has the structure ##STR2## (c) a substituted imidazolinium group which has the structure: ##STR3## R.sub.3 is a radical which has the structure ##STR4## or --OR.sub.5 ; R.sub.4 is an alkyl or alkenyl group containing 1 to 17 carbon atoms; R.sub.5 is R.sub.1 or mono or dialkyl phenyl; A is an integer of from 0 to 20 and B is an integer of from 0 to 20 and A+B>0; x is either chlorine or bromine are provided.

Abstract: An energy-recycling scissors lift includes a platform, base and a pair of scissors linkages, each having a first and second scissors legs. One end of each second scissors leg is pivotally attached to the base and the other end translations along the platform. One end of each first scissors leg is pivotally attached to the platform and the other end translates along the base. A bridge structure connects each of the second scissors legs together. A sealed gas cylinder, attached to the base and the bridge structure, moves the platform to an extended position above the base. Energy is stored in the sealed gas cylinder as the platform and supported object descends to a retracted position. A compensating device is attached to the scissors lift to compensate for the overforce caused by the sealed gas cylinder. One form of the compensating device adjusts the position of the sealed gas cylinder to vary the force exerted on the platform. Other compensating devices are equalizing springs and spring reels.

Abstract: Weatherstripping is produced continuously by two or more spaced apart tufting heads, which may be operating at different stitch rates. The or each strip of weatherstripping comprises at least two rows of tufts sequentially inserted by two tufting heads. Heated dies may be located between the tufting heads for transforming rows of tufts inserted by the first tufting head at least partially into film to form barrier fins. The knuckles of the tufts are flattened, a secondary backing applied, and then individual strips of weatherstripping separated by ultrasonically slitting, all as a continuous process enabling weatherstripping of various constructions to be efficiently and economically produced by tufting.

Abstract: A method of manufacturing weatherstripping comprises forming a row of pile fiber on a substrate, compressing the row widthwise between a pair of dies, heating the row while so compressed, and cooling the heated row. In this way the sides of the row can be heat set for appearance, or formed into a continuous film, or the whole row converted into a barrier fin in the form of a film, depending upon the degree of compression and the temperature. Preferably the row is formed by tufting and the dies disposed immediately downstream of the tufting station. Pile fiber of conjugate polyethylene and polypropylene is advantageous in forming such films which are integrally attached to the substrate by pile fiber roots extending from the base of the film into the substrate.

Abstract: Devices for holding mining and road maintenance cutter bits, wherein said devices for holding comprise a cutter bit support block, a clevis and a support block locking mechanism whose geometries have been adapted such that the cutter bit support block can be fixedly and rigidly held in a channel in the clevis by the support block locking mechanism, which has a locking bolt. The support block locking mechanism and the clevis have means for interacting and cooperating such that each abuts with, and applies a downward pressure to, a lower body portion of the support block and thereby drives downward facing longitudinal shoulders on the support block into abutment under pressure with upward facing abutment shoulders of two longitudinal walls forming the channel in the clevis.

Abstract: A lubricant free low cost overload release clutch having a spring housing with an integral hub, a detector ring containing fixed detent bullets for engagement with springs in the housing on one side, and a bullet detent housing on the other side, together with spider cushion and shaft housing engaged for rotary turning with the bullet detent housing in response to the rotation of a shaft in the shaft housing. The release clutch responds to preset torque limits determined by spring tension. After a disengagement caused by excess torque, the clutch will reset by further rotation of the detent housing.

Abstract: An adapter is provided in the form of a holder into which a fitment dispenser is removably received; the adapter is removably mounted on the neck of a capped container for removably suspending the dispenser within that neck. The adapter typically has frictional interfit with the dispenser which may be tubular. The container typically contains a first composition, and the fitment dispenser typically contains a second composition which is to be dispensed at the time access is gained to the first composition in the container via its neck, for use in cleaning process.

Abstract: An expandable multi-purpose utility shelter (10), designed in several sizes, which is quickly erectable by two to six persons, depending upon the size of the shelter. The structure has a sturdy metal frame (12, 16) with a durable fabric cover attached to the inside of the frame. The frame (12, 16) comprises a series of ribs (12) which can be very quickly and easily extended from a compact folded configuration needed for easy transportation to a full-size shelter at erection. Adjacent ribs (12) are connected by a single reinforcing member (16) or by X-shaped reinforcing members (16a) on each side of the shelter. These reinforcing members serve as force transmitting means for opening and closing the shelter (10) and keeping adjacent ribs (12) stabilized and spaced equidistant. Individual reinforcing members are pivotally connected to the lower portion of one shelter leg and rollably or slideably connected to the upper portion of a next adjacent shelter leg.

Abstract: An expandable multi-purpose utility shelter (10), designed in several sizes, which is quickly erectable by two to six persons. The structure has a sturdy metal frame (12, 16) with a durable fabric cover (11) attached to the inside of the frame. The frame (12, 16) comprises a series of ribs (12) which can be very quickly and easily extended from a compact folded configuration needed for easy transportation to a full sized shelter at erection. Adjacent ribs (12) are connected by a single reinforcing member (16) or by X-shaped reinforcing members (16a) on each side of the shelter. These reinforcing members serve as force transmitting means for opening and closing the shelter (10) and keeping adjacent ribs (12) stabilized and spaced equidistant. Individual reinforcing members (16 or 16a) are pivotally connected to the lower portion of one shelter leg and rollably or slidably connected to the upper portion of a next adjacent shelter leg.

Abstract: An apparatus comprising a valve body having first, second and vent ports and a generally tubular valve element having a peripheral wall with first, second and vent openings in the peripheral wall leading to the interior of the tubular valve element. The valve element is mounted in the valve body for rotational movement between first and second rotational positions and for axial movement between first and second axial positions. A pressure sensor is exposed to the fluid pressure within the valve body. In the first rotational position of the valve element, drip flow is provided between the first and second ports, and in the second rotational position, the vent port is open to provide communication between the pressure sensor and the atmosphere. To provide flush flow between the first and second ports, the valve element is moved to the second axial position.

Abstract: A method and apparatus for tufting weatherstripping involves forming a barrier fin on a substrate, advancing the substrate with the barrier fin extending downwardly from the underside thereof past a tufter head, and passing the downwardly extending barrier fin through a channel in the needleplate of the tufter head while the substrate passes over and is supported by the needleplate. A row of tufts is then tufted along one or both sides of the barrier fin. The barrier fin may be formed by folding the substrate, adhering a strip to the underside of the substrate, or by forming a film from a row of previously inserted tufts. Preferably, the substrate is guided transversely to ensure alignment of the barrier fin or fins between the rows of tufts.

Abstract: The invention relates generally to products useful for home laundering, and more particularly to a product which incorporates a prespotter with a detergent and having one or more of the following separate functions: detergency, fabric softening, stain removal, bleaching, and bluing; with the advantage being that both the detergent and the prespotter are uniquely packaged together as one product, negating the need to purchase and store separate products for each end use function, and also, unavoidably providing presentation of the pre-spotter to the detergent user at the time of laundering. The invention also concerns methods of use of such products during laundering.

Abstract: A method of manufacturing weatherstripping includes tufting synthetic yarn into a primary backing fabric to form tufts on one side thereof and tuft "knuckles" on the other side. Then, the tuft knuckles are contacted with a heated surface of controlled temperature to deform and flatten them, the combined thickness of the primary backing and the tuft knuckles thus being reduced and the tufts being more securely attached to the primary backing. Preferably, there is relative motion between the tuft knuckles and the heated surface to effect a smearing of the tuft knuckles onto the primary backing. The flattened tuft knuckles may form a thin continuous strip adhering to the primary backing and locking the tufts thereto.

Abstract: The method of washing articles in an automatic dishwasher includes the steps:(a) providing a first volume of a first treating component for use in the dishwasher,(b) providing a second volume of a second treating component in close transported association with the first volume, but isolated therefrom, for presentation at the time of use of said first component,(c) one of said first and second components consisting essentially of nonionic surfactant, and the other of said first and second components consisting essentially of chlorine release agent, and(d) separating some of said second component from said close association with the first component and employing same in the dishwasher at the time of adding said first component to the dishwasher.

Abstract: An improved process, optimizing quality and growth rate with independent control of residual stress, is disclosed for the growing of membranes for use as X-ray lithography mask blanks. The process comprises providing a mounting fixture and a low-cost substrate material thereon, cooling the substrate to about the boiling point of hydrogen by passing a liquid coolant in contact with the fixture, depositing by a low-temperature plasma-enhanced method a thin membrane onto the cooled substrate, removing the substrate and the thereon deposited membrane from the fixture, and allowing the substrate thermally to expand by gradually assuming ambient room temperature, whereby the membrane will acquire optimum tensile stress. Preferably, the low-cost substrate is low grade industrial silicon and the membrane is formed of boron nitride, silicon carbide, silicon nitride, amorphous silicon, diamondlike carbon, aluminum oxide, beryllium and silicon oxide.