Abstract: A process for the catalyzed oligomerization of ethylene to a product rich in linear C.sub.4 olefins using a catalyst composition made by incorporating a major amount of HAMS-1B crystalline borosilicate molecular sieve composited in an inorganic matrix or an amorphous, silica-alumina support with minor amounts of a nickel compound and a zinc compound and calcining the result to form a composite containing supported zinc and nickel oxides.

Abstract: An electronic apparatus for sensing the percentage of different blood constituents in arterial blood. Light of a plurality of separate wave lengths is sequentially made to pass through a portion of the body, either by direct transmission or scattering so that the pulsatile blood flow modulates the intensity of the light. A signal processing circuit functioning in accordance with the Lambert-Beer Law is used to determine the percentage of different blood constituents from the fluctuations component of the logarithm of the light absorption. The sampling of the separate wave lengths is time-multiplexed through a common channel, thus obviating the need for a separate channel of similar electronics for each constituent to be monitored. The signal processing circuitry is also effective to compensate for noise due to ambient light or other stray sources, thus improving the overall accuracy.

Abstract: In accordance with a first arrangement, a non-coherent, pulse radar transmitter emits N-sequential signals of differing frequencies at predetermined time intervals, the transmitted pulses being directed toward a given target area of interest. Further included is a radar receiver for detecting and processing the composite radar return signal samples of N differing frequencies which are reflected from a plurality of point scatterers located in the area of interest. The varying D.C. interference signal of the plural radar return signal samples occasioned by the differing frequencies are detected and a one-dimensional Fourier transformer is performed on that composite radar return signal samples to facilitate target identification. A programmed processor is used to dervie a plurality of feature characteristics from the Fourier transform of the detected radar return signals and the features so computed are compared with features characteristic of known potential targets on a best-match basis.

Abstract: A tocodynamometer for measuring intra-amniotic pressure through the abdominal wall of obstetric patients, including a force transducer resiliently mounted in a housing, a precompressed coil spring between the housing and an outer backplate, and an attachment on the outer backplate for fastening thereto a belt tensioner for holding the apparatus against the patient adjacent the uterine wall.

Abstract: There is provided portable scaffolding units useful in pairs or more having an angled main leg attached to a walkway support T-brace leaning against the wall or surface being worked. The T-brace rests against the work surface held with no-slip pliable ribbed facing and by an adjustible nailer. The positioning of a raised work walkway is side supported by angled braces affixed to both sides of the walkway support T-brace. The main leg and the angle braces are both adjustible in length and affixed with leveling feet for holding the structure firmly on uneven or soft ground. Safety brackets are supplied to hold a safety rail at a sufficiently high position above a plank walkway to prevent step-back accidents.

Abstract: High-temperature joints formed from metallized ceramics are disclosed wherein the metal coatings on the ceramics are vacuum sputtered thereon.

Abstract: The present invention concerns novel immunoprecipitating autologous antibodies which recognize the Class 1 gp90 antigen on melanoma cells. These antibodies, optionally tagged with a chromophoric or radioactive label and immobilized on an inert support, may be used to recognize and isolate the gp90 antigen from melanoma cell extracts. Monoclonal antibodies to melanoma may be screened with the gp90 antigen for those which recognize epitopes other than the FD antigenic system.The cell line containing the gp90 antigen which has been cultured in vitro is a source of gp90 antigen for generation of monoclonal antibodies which will be useful in analyzing the gp90 antigen for those epitopes which may be of diagnostic value in immunoassay of melanoma.

Abstract: A solid lubricant such as MoS.sub.2 is applied to certain carbon and stainless steels after surface voids have been produced in the material by one or two annealings before final cold working the material to finished size. The latter operation imbeds or includes the lubricant into the material and thereby provides a superior lubricated steel for piston rings, shaft, valve stem, spring, stranded wire, and the like applications. The technique involved may also employ corrosion inhibiting agents to increase resistance to corrosion of the steel as well as to impove its lubricity.

Abstract: A flexible electrode catheter for rapid endocardial insertion has a "J"-shaped curved configuration. A wing extends laterally from the catheter at the proximal end, and has an established relationship between the lateral direction of the wing and the direction of the curve, allowing the physician to control the orientation of the distal end during and after insertion within the heart. The wing may then be used to stabilize the electrode by taping to the patient's skin. The curved end is opened between 20.degree.-50.degree. from the longitudinal axis of the catheter.

Abstract: Regioselective and stereoselective synthesis of trans-internal olefins is effected with transition metal catalyst complexes having pairs of associated active sites. Photolytic conditions are generally employed.

Abstract: A method of treating the surface of a metal sliding contact which involves the immersion of the metal contact in an acid bath, in the presence of an electrolytic current to produce pockets bounded by crystalline projections. A lubricant is applied to the contact to fill the pockets therein and the crystalline projections are bent over to trap the lubricant.

Abstract: A latch member is mounted on the free swinging edge of a door and a mount is supported from a door frame toward which the door free swinging edge is moved to the closed position. The mount is supported for oscillation about an axis paralleling the door frame portion and an elongated hasp has one end pivotally supported from the mount for oscillation about an axis normal to the axis of oscillation of the mount and the other end of the hasp includes structure for latchingly engaging the latch member. In addition, the latch member is supported from a door edge mounted support and the longitudinal mid portion of the hasp and the mount include co-acting structure operable to interlockingly engage with each other and lock the door in the closed position. The hasp, when the end thereof remote from the mount is engaged with the latch member, is operative to allow slight movement of the associated door toward the open position and to prevent the door from being further opened.

Abstract: Electrode catheters for rapid endocardial insertion and for interconnection with a pacemaker include a flexible conductor having an outer, electrically insulating sheath about the conductor with a curve, bend or other portion at the distal end of the catheter. A wing extends laterally from the catheter at the proximal end, and has an established relationship between the lateral direction of the wing and the curve, bend or other portion allowing the physician to control the orientation of the distal end after insertion to permit the desired positioning of the curve, bend or other portion within the heart. The wing may then be used to stabilize the electrode by taping to the patient's skin.

Abstract: A pacing electrode for rapid endocardial insertion for pacing from the right atrium of a patient and for interconnection with a pacemaker includes a flexible conductor having an outer, electrically insulating sheath about the conductor with a flexible curve at one end of the conductor and an exposed terminal along the flexible curved end. The terminal is adapted for making electrical contact with an inner heart surface, preferably within the right atrium. The curved end of the electrode is straightened during insertion through the circulatory system, and thereafter permitted to resume its curved configuration after entering the heart. A wing extends laterally from the sheath at a position outside the patient's body after the curved end has been inserted into the heart.

Abstract: A water spray system applied directly to cooking units in a kitchen rather than to the ventilating duct for the cooking units. The system may be a wet system with water pressure maintained at spray nozzles which open in case of fire, or an open head, or dry, system controlled by thermostats and a solenoid water valve. Safeguards are provided against loss of water pressure, surges in the water supply line, flare ups after partial cooling of the thermostats, closing of a solenoid gas valve supplying gas burners in the cooking units as a result of momentary outages in the electric service supplying the control circuits, and other contingencies.

Abstract: An apparatus and related method for implanting pacemaker electrodes and similar devices within a patient include an introducer with a tapered end adapted to extend into the patient's body, and a hollow, tubular sleeve having a first portion with an inner dimension greater than the outer dimension of the introducer and a second portion at one end of the sleeve which extends parallel with the introducer and in close engagement therewith, with a gradual taper along the sleeve between the first and second portions. The sleeve has a longitudinal slit along the first portion and through the taper, but short of the forward extremity, to permit the sleeve to be peeled away from the pacemaker electrode after introduction. The introducer and sleeve include corresponding hub and flange arrangements which provide a means for locking the two elements together to prevent inadvertent motion of the sleeve with respect to the introducer as the two elements are being inserted into the patient.

Abstract: An improved apparatus for applying substances, some of which can be highly viscous in nature, to desired surfaces is disclosed. The applicator (10) can include a housing (12) defining a closed plenum (40) which is filled with a fluid medium. The housing (12) is mounted for rotation about an axis, and an applicator shoe (28) is mounted at a first end (14) of the housing (12). A duct or tubular member (22) is disposed radially inwardly from the shoe (28) with respect to the axis of rotation. Centrifugal delivery conduits (32) are provided to afford fluid communication between an interior passageway (26) of the tubular member (22) and a chamber (38) formed in the shoe (28). As the housing (12) rotates about the axis, substance introduced into the interior passageway (26) of the duct (22) is centrifugally impelled to the shoe (28) through the conduit means (32).

Abstract: An apparatus and related method for implanting pacemaker electrodes and similar devices within a patient include an introducer with a tapered end adapted to extend into the patient's body, and a hollow, tubular sleeve having a first portion with an inner dimension greater than the outer dimension of the introducer and a second portion at one end of the sleeve which extends parallel with the introducer and in close engagement therewith, with a gradual taper along the sleeve between the first and second portions. The sleeve has a longitudinal slit along the first portion and through the taper, but short of the forward extremity, to permit the sleeve to be peeled away from the pacemaker electrode after introduction. The introducer and sleeve include corresponding hub and flange arrangements which provide a means for locking the two elements together to prevent inadvertent motion of the sleeve with respect to the introducer as the two elements are being inserted into the patient.

Abstract: An apparatus and method are disclosed for implanting a pacemaker within a patient with a minimal amount of incision. The pacemaker comprises an encapsulated pulse generator having a receptacle and an electrode having an electrode tip and an electrode connector plug. The electrode connector plug is receivable in the receptacle of the encapsulated pulse generator. A needle is inserted through the exterior skin of the patient to puncture the subclavian vein. An introducer sleeve which is severed or is severable along the length thereof, is inserted into the puncture in the subclavian vein. The introducer sleeve may be introduced through the needle or on the outer surface of a needle, or through the use of a guide wire passed through the internal portion of the needle after the needle is removed. The electrode tip is inserted through the introducer sleeve to enter the vein of the patient. The electrode is moved along the vein to enter the heart of the patient.

Abstract: For use in combination with a machine that has an endless conveyor for conveying a file folder to a tang assembly station and thence away therefrom, folder tang assembly apparatus that includes a frame, a feed assembly for indexingly feeding a plurality of webs having folded tangs nearly punched thereoutof, a stationary die plate, a stripper bar above the die plate, a pressure pad for each web reciprocally mounted in a die plate aperture to press the web against the stripper bar, tang punches reciprocally extended in the pressure pad for punching a tang out of a web, through a stripper bar aperture, and against a folder, a cinching device for each web to cinch the tang to the folder when the punches move the tang against the folder, a tang location quill carried by one of the tang punches for each web to properly locate the tang to be punched out of the web, a power operated lower die shoe for reciprocating the punches, and piston cylinders for moving the pressure pads to press the webs against the stripper p