Abstract: A railroad switch point indicator comprising a mounting plate mountable to a railroad switch point, a tubular housing mounted to the mounting plate, a piston slidably disposed in the housing and extendable to variably engage an associated railroad rail, a bias spring operatively connected to the piston for biasing the piston in an axial direction with respect to the housing and the railroad switch point, and a signal mechanism operatively connected to the piston for indicating the positional status of the switch point via an attitude of a signal flag. When the switch point is engaged with a rail, the flag is in a first attitude. When the switch point is disengaged from the rail, the flag is in a second attitude. When the switch point is positioned incorrectly, i.e., damaged, the flag may be in a third attitude intermediate between the first and second attitudes, indicating alarm.

Abstract: A spring-loaded clip for removably attaching a catheter hub to the skin of a patient. The clip includes first and second needle members pivotably connected on a common axis and closable with their respective arcuate needle elements interlocked within the skin of a patient. A bias spring urges the first and second needle elements into a preferred position, preferably the closed position. Each needle member includes a lever for use in opening and closing the clip and also includes a grasping element for capturing a catheter hub as the clip closes. Preferably, the needle elements are curved through about 120°, are sharpened to a point at a first end, and are joined to a pivot element at the opposite end. No separate conventional suturing of a catheter hub to a patient is required.

Abstract: An improved catheter system having a hub including a self-suturing mechanism comprising a circular needle rotatably slidable in a circular groove in the hub. The needle is sharpened to a point at an end and preferably is also formed into a tang for use as a handle. The hub is flattened on a side to be adjacent to the skin, defining a hub flat thus truncating the groove through, for example, 60° thereof. After the catheter is positioned in the blood vessel, the flat is pressed against the skin. The circular needle is rotated through an angle such that the circular needle passes through a portion of the skin, thereby “self-suturing” the hub to the skin of the patient. The hub is thus firmly attached to the patient, and no separate suturing is required. De-suturing of the catheter requires only reverse rotation of the circular needle.

Abstract: A flower pot assembly including at least one axle and two wheels near a lower region of a pot-shaped element. The axle is located from the bottom of the pot by a distance greater than the radius of the wheels such that the wheels are not in contact with the surface on which the assembly rests. Tipping of the flowerpot assembly brings the wheels into contact with the surface, and further tipping frees the bottom of the pot from contact with the surface. In this attitude, the assembly may be readily wheeled to a new location. A vertical handle, preferably detachable, is attached to a side above the axle to facilitate tipping and moving. The element may be cylindrical, conical, rectangular, or any other convenient shape. Preferably, the element is tapered to facilitate stacking of pots without wheels for shipping and storage.

Abstract: A wheel cover system comprising a first bearing element mountable to a vehicle's wheel or rim, and a second bearing element rotatable on the first element supportive of a wheel cover assembly that, when mounted to the vehicle, is non-symmetrical in appearance about a first vertical plane extending through the axis of rotation and containing the gravitational direction. The wheel cover itself is also non-symmetrical in shape and/or mass about a second plane extending through the pivot axis of the wheel cover and coincident with the first plane. Balance is provided by weights to the wheel cover on opposite sides of the second plane at differing radial distances from the center of rotation. The weights may differ in mass. In a currently preferred embodiment, the asymmetrical shape of a wheel cover is in the form of an indicium such as a number, alphabetic letter, abstract symbol, or combinations thereof.

Abstract: An adjustable framing tool 10 for laying out hip and valley rafters 216. A planar body 12 has a measuring edge 14 and first and second scribing edges 16,18 disposed at right angles to the measuring edge. An arm assembly 20 comprising first and second parallel arms 22,24 disposed on opposite sides of the planar body is rotatably mounted on the planar body. The arm assembly extends across an arcuate slot 40 in the planar body centered on the pivot of the arm assembly. A thumb screw 42 selectively positions the arm assembly at any rotational position. The measuring edge is numbered in increments from 0 to 12, the length of the measuring edge being equal to 12 times the secant of the angle c formed by the hip or valley rafter 218 with the nearest common rafter 208. The slot is numbered in increments expressed as the pitch of the main roof 202.

Abstract: A closed blood pressure cuff including a ring-shaped inflatable bladder having an inner portion for making direct contact with a user's arm and an outer portion having a fixed circumference outside the inner portion. The bladder is formed of non-distensible material, preferably by joining a tubular starting element. The inner portion of the bladder is not constrained during inflation and thus can readily conform to a subject's limb, the outer portion accommodating an upper limit of arm circumference within the cuff. The cuff may include a stiffener attached to the outer portion of the bladder to automatically adjust the shape of the bladder during inflation. The stiffener may be in the form of a continuous layer or may comprise a plurality of axial ribs, allowing the cuff to be folded when not in use. The cuff may be generally cylindrical or may be tapered.

Abstract: A combination compacting and smoothing asphalt finishing machine comprising primary finishing elements which may be either compacting tires or smoothing rollers. The primary elements are driven and steered by engine and hydraulic mechanisms conventionally. The machine further comprises secondary asphalt finishing elements which complement the primary elements, being either smoothing rollers or ganged rubber tires. The secondary elements are pivotably attached to the frame of the machine. In a first position, the secondary elements are not in contact with the asphalt layer or with the primary elements and the weight of the machine is borne only by the primary elements. The secondary elements are hydraulically actuable and may be pivoted into a second position wherein only the secondary elements are in contact with the asphalt layer and are in driving contact with the primary elements which are thus raised from contact with the asphalt layer.

Abstract: A pier system having tethered deck sections that are selectively separable from supporting pile bents to prevent damage to the pier system during storm events. The pier system includes a plurality of deck sections supported above water by pile bents and engaged therewith in normal use mode by selective attachment mechanisms. In deployment mode, the attachment mechanisms are disengaged to allow the deck sections to be removed from the pile support systems by storm action. The tethers allow the decking sections to float free but remain close to the pile bents. The system may be reassembled into normal use mode following the storm event.

Abstract: A system for wiping a windshield of a vehicle in a rectangular field, comprising a wiper arm, a wiper blade assembly operationally attached to the wiper arm, and means for rotating and translating the wiper arm to cause said wiper blade assembly to track in a linear path across the windshield. The system includes a three-gear train for moving a pivot point on the wiper arm along a circular path centered on a virtual pivot point. The system is especially suited for wiping low aspect ratio windshields.

Abstract: A method for controlling a steam boiler or oil heater for maximum fuel efficiency by systematically finding the most fuel-efficient combination of input control values. A characteristic multi-dimensional look-up table is created by temporarily operating the process at all the possible functional combined settings of a plurality of input operators and recording for each combination of settings the resulting output values of a plurality of process parameters, for example, steam flow, steam pressure, and exhaust composition. Input combinations resulting in either non-functional process or unacceptable output values are eliminated. Steam flow rate is the primary output control parameter. A selected value of steam flow rate is the primary control setpoint for the process. If several combinations of input values can cause the process to meet the primary control setpoint, the combination using the minimum fuel flow is selected as optimal.

Abstract: An improved flare burner for burning combustible gases in petroleum and petrochemical installations. A cylindrical shell has a closed bottom and an open top. A central opening in the bottom is connectable to a source of the gas to be burned. A plurality of linear steam/gas tubes is disposed within the shell, each tube extending to the open end of the shell and also extending through the shell bottom. A lower steam distribution sub-assembly below the shell bottom includes individual steam jets adjacent the ends of the tubes for educting air to the upper end of the tube. A pilot gas sub-assembly for igniting the flare gas is disposed within the shell. Gas to be burned is passed into the interior of the shell through the bottom opening and moves to the open end. Steam injected into the steam/air tubes educts air, and air and steam exit the tubes and mix with the gas to create a combustible mixture. The pilot light assembly provides an open flame which ignites the mixture.

Abstract: A system for cleaning a moving substrate includes a rail mounted adjacent to the substrate surface and substantially transverse to the direction of movement thereof. A carriage for supporting a contact cleaning roller (CCR) is deployed on the rail for allowing axial translation of the CCR transversely of the substrate while in rolling contact therewith. Two renewal stations for cleaning the CCR are mounted adjacent the rail, one outboard of each substrate edge. The CCR is at least twice as long as the width of the substrate and is axially oscillable for a distance sufficient that all portions of the CCR surface may be cleaned by the renewal stations during one oscillation cycle of the CCR while the CCR maintains continuous contact with the substrate across the full width thereof. The CCR mounted on the carriage may be a primary CCR and the substrate may be a continuous web or sheet, or the CCR mounted on the carriage may be a secondary CCR and the substrate may be a primary CCR or other process roller.

Abstract: A system for cleaning particles from a moving web by engagement with contact cleaning rollers, wherein the web may be moved selectively out of contact with the cleaning rollers to prevent damage to the web surface, such as adherance, stripping, or ferrotyping, resulting from stationary contact with the cleaning rollers. The system includes contact cleaning roller assembly disposed adjacent to and transverse of the web path. Preferably, such assembly includes a rotatable turret supporting a plurality of rotatable contact cleaning rollers, preferably three rollers positioned equilaterally. The turret is positioned relative to the basic web path such that, in a non-operative mode, the web is not in contact with the cleaning rollers, the web path bypassing the cleaning rollers. Thus, during periods of maintenance or other downtime, the web first surface is protected from being damaged by stationary contact with the cleaning rollers.

Abstract: Solid inorganic particulate salts having increased hardness are produced by incorporating a novel additive composition comprised of ammonium sulfate and a naphthalene sulfonate compound.

Abstract: There is provided a process for the gas phase production of an ethylene-propylene or ethylene-propylene-diene rubber in the presence of a single site or single-site like catalyst (e.g., metallocene) catalyst system and an inert particulate material comprising pretreating the inert particulate material with trialkylaluminum (e.g., tri-isobutylaluminum) before commencing polymerization.

Abstract: There is provided a method which reduces fines while maintaining the bulk handling advantages of granular or particulate elastomers such as those produced in gas phase processes and which affords continuous bulk handling of synthetic rubbers or elastomers such as those produced in solution and/or suspension processes. The method comprises (1) feeding an crumb form elastomer or a granular elastomer which contains fines along with optionally one or more filler materials to a mixer/extruder where it is masticated and melted into a compound; (2) pumping the compound through an orifice of the mixer/extruder, and (3) cutting and forming the compound into shaped pellets ranging in size from about 0.5 to 30 mm.

Abstract: An improved system for passenger safety in a front-end vehicle collision, whereby the kinetic energy of a passenger may be reduced before the passenger is exposed to the crash deceleration. An array of variably momentum-responsive electrical sensors mounted in the forward portion of the vehicle senses the onset of a front-end collision and sends one or more crash signals to the passenger compartment. A passenger seat is mounted on translating means permitting rearward motion and has a harness to secure a passenger to the seat. Beneath the seat, attached between the floor of the vehicle and the frame of the seat, is an array of pairs of linear actuators, each actuator being powered by an explosive charge and each pair being electrically connected uniquely to one of the momentum sensors.

Abstract: The disclosure of this application relates to compositions based on alkylene-alkyl acrylates and silanol condensation catalysts which are useful in the preparation of water-curable, silane modified alkylene-alkyl acrylate copolymers, capable of extrusion about wires and cables.

Abstract: A process of modifying ethylene polymers by reacting granular ethylene polymers having a density of about 0.87 to about 0.92 gram per cc and a pore volume of about 0.1 to about 1 cc per gram with a gaseous chlorinating agent to produce elastomeric, granular, chlorinated polymers having a tensile modulus of less than about 2,000 psi and a crystallinity of less than about 10 percent.