Abstract: The partition system disclosed herein incorporates apparatus for generating a speech masking acoustic field. Respective speakers are mounted near the bottom of each of a plurality of partition panel segments defining each work space and are aimed horizontally. These speakers are driven by respective signals which are subjectively incoherent as to frequencies of interest in the masking spectrum, thereby to provide a sound field without perceptible discontinuities.

Abstract: Apnea monitoring apparatus and method for detecting the cessation of airflow through the nostrils of a human being. The apparatus includes tubing having an opening in a wall thereof and one end adapted for connection in a sound-receiving manner to the human ear. The tubing is supported around the periphery of the top of a feeding bottle near the nipple so that the opening in the tubing is within the airflow. With this arrangement breathing sounds can be clearly heard so that the cessation of breathing is evident.

Abstract: A sensitive direct immunoassay system is provided for the detection of an antigen associated with hepatitis in body fluids. A single antibody which reacts with a hepatitis antigen or antigens and which is bonded to an insoluble member, is incubated with a test sample. During this first period of incubation a portion of an antigen present in the test sample will combine with the antibody immobilized on the insoluble member. The antibody bonded member, to which antigen is attached, is then washed and incubated with an enzyme tagged antibody reagent. During the second incubation, the tagged antibody reacts with antigen fixed to the antibody member in the first incubation. Thus, an immobilized "sandwich" is formed of an insoluble member- antibody-antigen-enzyme tagged antibody. After the second incubation, the member is washed again to remove unreacted enzyme antibody reagent. The member is then exposed to a substrated which is converted by the enzyme to produce an end product.

Abstract: Disclosed is an interface assembly for use in conjunction with a test contactor assembly for integrated circuit (IC) electronic devices and the like. The test contactor assembly has at least one row of flexible contacts that are each secured at a lower end to a base. A conductive plate is also secured to the base and extends in a generally parallel, closely spaced relationship to each row of contacts. The dimensions of the plate and its spacing from the associated contacts produce a distributed capacitance with respect to each contact in the row such that a fast-rising test signal launched in a contact encounters a generally "characteristic" or purely resistive impedance that is frequency independent. The interface assembly, which connects the test contactor assembly to a test circuit, has a contactor board secured to the base of the contactor assembly. A pattern of conductive stripes is carried on at least one face of the board.

Abstract: An immunoassay for a specific antibody, particularly Graves' disease-specific antibody, in which interfering reactions by the reactive ends of similar antibodies are eliminated by the step of occluding the interfering reactive ends with an antibody against the interfering reactive ends.

Abstract: Novel compounds having the general formula ##STR1## wherein X is hydrogen or halogen, Y is hydrogen, halogen, methoxy or alkyl having 1 to 3 carbon atoms, Z is hydrogen, alkylcarbonyl having 2 to 6 carbon atoms or benzoyl, and R is hydrogen, alkali metal or alkyl having 1 to 5 carbon atoms, are disclosed. These compounds exhibit excellent hypolipidemic activity and little or no side effect.

Abstract: There have been prepared novel benzo[a]phenazine derivatives of the formula ##STR1## wherein R.sup.1 is hydrogen or methoxy, R.sup.2 is hydrogen, methyl, acetyl, haloacetyl or substituted aminoalkyl, and R.sup.3 is ethoxy or substituted amino. These compounds are useful as antimicrobiological agents.

Abstract: The compounds of the formula ##STR1## wherein R is alkyl having 1 to 4 carbon atoms or nitratoalkyl having 2 or 3 carbon atoms, and R' is nitratoalkyl having 2 or 3 carbon atoms, are disclosed. These compounds are useful as therapeutic agents for cardiovascular disorders such as coronary artery disease, cerebral artery disease, hypertension and the like.

Abstract: Interchannel crosstalk in an existing dual channel pacer designed for bipolar leads is reduced by inserting a switching circuit between the pacing leads and the pacer terminals. In one embodiment, in each channel an isolation resistance and buffer amplifier in series with the lead electrodes, respectively, are shunted during stimulation. In another embodiment, the lead electrodes are connected to a pair of differential amplifiers which are bypassed during stimulation on a given channel.

Abstract: The invention is to provide an improved process for preparing polyolefins having predetermined properties, in particular, melt index and/or density by polymerizing olefin in the presence of a Ziegler catalyst and hydrogen. The parameters corresponding to the concentrations of olefin and hydrogen, participating in the properties, in the gas phase of reactor are detected by high-speed gaschromatography. The detected signals are applied to a computer.The feed volumes of olefin and hydrogen into the reactor are controlled by means of an operation control output, and the respective concentrations in the reactor are controlled. Consequently, the resulting polyolefins possess extremely stable and uniform properties.

Abstract: In a lithium oxyhalide battery having an anode containing lithium, calcium or a combination thereof, a non-aqueous electrolyte containing an oxyhalide such as thionyl chloride, sulfuryl chloride or phosphorous oxychloride and a cathode, the improvement comprising:(a) addition of a tetraaza-[14]-annulene complex to the cathode.

Abstract: An instruction memory for a microprocessor based cardiac pacer is equipped with code means defining improved pacing routines for accomplishing a programmably selectable 2:1 block mode in which every other atrial sense output is automatically ignored above a programmed maximum atrial rate. The 2:1 block option is preselected via the initialization routine. The atrial refractory period becomes programmable by equating it with the programmed maximum rate interval. As an alternative to 2:1 block mode, the pacer also offers VVI fallback pacing routine which can be automatically substituted for the main pacing routine. While atrial tachycardia continues to be monitored during the fallback routine, the criteria for resuming normal pacing are made different from the criteria for entering the fallback routine. In addition, before exiting the fallback routine, the R-R interval is lengthened by an amount to shift the phase of R-waves relative to P-waves.

Abstract: Herein disclosed is an ironless rotor winding for a cup-shaped electric motor. A winding portion is wound through one terminate face of an imaginary column. Another winding portion is wound onto the periphery of the imaginary column at an angle of inclination with respect to the axis of revolution of the column. A further winding portion is wound at the other terminate face of the imaginary column along the peripheral edge of the column. Thus, the overall rigidity of the ironless rotor winding can be increased. In an alternative, the winding portion wound onto the circumference of the imaginary column at an angle of inclination with respect to the axis of revolution is composed of a first segment having a smaller angle of inclination, and a second segment having a larger angle of inclination. Herein also disclosed are method and machine for making the such ironless rotor winding.

Abstract: A lead for connecting a source of electrical signals to an internal organ of the body. The lead includes a small diameter lead body of carbon filaments surrounded by a stiffening sheath. The stiffening sheath allows the lead with an attached electrode to be guided to the desired internal organ through the vascular system. After the electrode is properly positioned, the sheath is peeled away from the carbon filament lead means of longitudinal grooves extending the length of the lead. The external stiffening sheath eliminates the need for the carbon lead to have a hollow interior for accepting a stylet. The disclosed lead is of small diameter which is particularly advantageous for multiple lead systems.

Abstract: A rotary cutter for a printing press directs a web between a knife cylinder and an opposed anvil cylinder. The outer surface of the knife cylinder mounts one or more knife blade assemblies each having a sandwich construction. Each assembly includes at least one and usually two blades separated by a spacer bar. The assembly also includes a perforator blade and an ejector bar located on opposite sides of the spacer bar and set in recesses formed on the sides of the spacer bar. The perforator blade has laterally spaced sets of chisel-like teeth that impale trim pieces cut by the blades. The ejector bar reciprocates radially within the assembly to remove the trim piece from the teeth. The assembly is held together by two sets of bolts that allow the location of the blades to be set independently. A set of half rings each carrying radially projecting locating dowels are nested in circumferential grooves formed in the knife cylinder. Each ring is aligned against locating pins mounted in the knife cylinder.

Abstract: To avoid the necessity of piston rings in a piston-cylinder set, it is prsed that the cylinder liner be surrounded by a band consisting of a fiber composite whose thermal expansion in a radial direction is less than that of the cylinder liner, the impediment to expansion presented by the band varying over the length of the cylinder housing; that the piston be constructed with a cap consisting of a piston head facing the combustion chamber and an essentially cylindrical piston skirt adjacent to the cylinder bearing surface, and a force-transmitting core that contains the bearing for the piston pin and the spherical pressure pad; that a force-transmitting connection rotationally symmetrical to the piston's longitudinal axis be provided above the spherical pressure pad; that the cap be connected at the lower edge of the piston skirt to the force-transmitting core, but otherwise no contact be provided between cap and force-transmitting core except in the area of the force-transmitting connection; and that both cy

Abstract: There is disclosed a solid ultrasonic delay line which comprises a delay medium having two parallel major faces and at least three end faces intersecting the major faces, an input transducer bonded to one of the end faces and polarized in a direction parallel to the major faces for transmitting an ultrasonic signal in a shear mode into the delay medium, and an output transducer bonded to one of the end faces for converting the ultrasonic signal having propagated through the delay medium into an electrical signal. The input and output transducers have boundary surfaces lying flush with the two major faces of the delay medium, the major faces and the boundary surfaces being ground to a surface roughness which is one-twentieth or smaller of the wavelength of the ultrasonic signal propagating through the delay medium.

Abstract: A rotary cutter for a printing press directs a web between a knife cylinder and an opposed anvil cylinder. The outer surface of the knife cylinder mounts one or more knife blade assemblies each having a sandwich construction. Each assembly includes at least one and usually two blades separated by a spacer bar. The assembly also includes a perforator blade and an ejector bar located on opposite sides of the spacer bar and set in recesses formed on the sides of the spacer bar. The perforator blade has laterally spaced sets of chisel-like teeth that impale trim pieces cut by the blades. The ejector bar reciprocates radially within the assembly to remove the trim piece from the teeth. The assembly is held together by two sets of bolts that allow the location of the blades to be set independently. A set of half rings each carrying radially projecting locating dowels are nested in circumferential grooves formed in the knife cylinder. Each ring is aligned against locating pins mounted in the knife cylinder.

Abstract: A solid fuel burning heating apparatus, used as a parlor stove, is also used for cooking. The stove is provided with a self-clearing top smoke chamber having a top cover over an aperture. A cooking tray is supported in the aperture when the stove is operating. The tray has a surface for holding coals and an opening communicating between the aperture and the interior of the stove. A perforate cooking surface is supported above the tray.