Abstract: A seam welding apparatus is provided which automatically senses and adjusts the position of a welding torch in triaxial X, Y and Z directions and controls the position so as to maintain a predetermined position of the torch with respect to an irregularly shaped workpiece such as elliptical shapes. The apparatus also provides for continuously sensing and adjusting the surface speed of the workpiece so as to maintain a predetermined constant speed. A slope/speed sensor is also provided for sensing surface speed and slope of the workpiece. A method of continuously sensing triaxial position and surface speed of the workpiece adjacent the torch and adjusting the position of the torch and speed of the workpiece so as to maintain a desired position and speed is also provided.

Abstract: Discrete four-channel photographic (optical) motion picture sound-tracks are disclosed that are compatible with existing monophonic and stereo variable area (SVA) theatre projection equipment. Six track and four track embodiments are disclosed. In the four track embodiments 4-4-4 matrix encoding is employed in producing the sound-track. Apparatus for recording and reproducing the compatible four-channel sound-tracks are also disclosed.

Abstract: Apparatus for reproducing motion picture photographic (optical) sound-tracks is disclosed in which significant information regarding track placement, slit illumination, azimuth and impulse noise is derived by dynamically processing and comparing the signals obtained by reading each half of a bilateral sound-track. In a further embodiment a pair of detector elements monitors the septum between two tracks in order to detect lateral film misalignment.

Abstract: A motion picture loudspeaker system is described in which the loudspeaker elements are integral with an acoustical boundary wall such that the characteristics of the vented box woofers are optimized. In order to overcome high reflection problems as sound from the tweeters is reflected by the motion picture screen and the acoustical boundary wall, frequency dependent acoustical absorptive material is attached to the wall to inhibit high frequency reflections with minimal effect on the bass optimization. The system includes the use of a steep slope crossover netowrk having a crossover frequency such that there is a first order match of the woofer and tweeter dispersion at the crossover.

Abstract: Novel compounds are provided which have the formula ##STR1## where R is a substituent having at least five multivalent atoms. The compounds are reversible inhibitors of hydrolytic enzymes, and offer potential as drug and pesticide synergists and antagonists. Some are extremely potent inhibitors of juvenile hormone esterases. The compounds having the single 1,1,1-trifluoro-3-substituted thiopropan-2-one moiety can be immobilized to solid supports and used as ligands in affinity chromatography.

Abstract: A technique of temperature measurement wherein an object or environment to be measured is provided with a phosphor material layer that emits at least two optically isolatable wavelength ranges whose intensity ratio depends upon the object or environment temperature, the emitted radiation being brought to a detector by an optical system that may include an optical fiber. Several specific applications of this technique are disclosed, such as temperature monitoring of electrical equipment and industrial processing, medical temperature instrumentation including the use of disposable elements that contain a small quantity of the temperature dependent phosphor, special and multiple probes, the use of liquid phosphors, and a phosphor paint for monitoring surface temperatures.

Abstract: A continuous form for making one or more index sheets comprises an elongated strip of material perforated along a first line or a first set of lines transverse to the length of the strip. When the strip is split along the first set of lines a plurality of individual sheets are obtained. At least one sheet is perforated along a second line which is so positioned on such sheet that when it is split along the second line an index sheet of predetermined shape is obtained.

Abstract: A plasma arc cutting torch housing defines a chamber which has an outlet at the end of the housing. The torch also includes an electrode in the chamber near the outlet and means in the chamber for separating the gas flowing towards the outlet of the housing into a primary gas flow adjacent to the electrode for generating a plasma and a secondary gas flow away from the electrode for cooling the torch and the workpiece. The electrode has a centrally disposed bore therethrough for conveying gas. Inserts in the bore at opposite ends of the electrode burn away so as to expose the centrally disposed bore and thereby automatically quench operation of the plasma arc so as to prevent damage to the torch. In the preferred embodiment, the electrode has a centrally disposed transverse bore and a pair of transverse bores intermediate the central bore and the electrode ends. In an alternate embodiment, the pair of transverse bores are eliminated and gas is conducted by means of an annular gas distributor.

Abstract: An optical temperature measuring instrument for detecting illuminescense of phosphor temperature sensing elements, wherein a two or more point temperature calibration system allows compensating for different temperature sensor characteristics, and a single optical system is utilized for simultaneously reading the temperatures of a plurality of temperature sensors in a multiplexing arrangement.

Abstract: Apparatus of the carousel type, which is disposed at a turning point of a conveyor belt, comprising a stationary central part which includes a vertically placed drum round which a frame has been suspended so as to be concentrically rotatable, the said frame carrying a number of vertically displaceable rod-shaped members which communicate with means for the supply of spraying water and each of which is also provided with spraying means for squirting the water supplied into the interior of the carcass and with at least one dilator for keeping the neck aperture of the carcass being treated sufficiently wide open to ensure proper flushing of the spray water.

Abstract: A welding gun apparatus to supply welding wire, electrical power, and shielding gas to a working area includes a connector plug with a conduit stop therein. The conduit stop is fittedly received within a bore in the connector plug and is of unitary one-piece construction so as to provide a fluid-tight fit therewith.

Abstract: A method for removing inorganic sulfides from finely ground, non-sulfide minerals is provided. A polymeric agent having a molecular weight of from about 1,000 to about 300,000 and with a plurality of xanthate groups per molecule is admixed into an aqueous suspension including inorganic sulfides and non-sulfide minerals. The polymeric agent adsorbs onto the inorganic sulfides and maintains them as a dispersion while the remaining minerals are selectively separated, as by flocculation.

Abstract: In a welding gun apparatus, an improved electrical power conductor assembly in which electrical conduit wire may be readily secured to a cable connector body while the structural integrity of the conduit wire is maintained. Conduit wire is fastened to the connector body by means of an axially movable connector sleeve which secures the wire against a tapered mandrel on the connector body. A pressure nut threadably adapted to the connector body controls the axial position of the connector sleeve.

Abstract: A hand-held "Mouse" contains an optical system for detecting the number of patterns crossed by its movement across a periodic optical pattern. The optical system is limited to detecting the distance traveled by the mouse across the pattern, a mechanical displacement device within the mouse being utilized to detect the direction of movement. Signals from the optical distance detector and the mechanical direction detector are combined to drive the cursor in a controlled direction across a cathode ray tube or other display device.

Abstract: The time-base corrector of this invention corrects the time-base of audio signals reproduced from video tapes without correcting the time-base of video signals which are associated with the audio signals. Reference signals such as the horizontal synchronizing pulses which accompany video information are used for correcting the time-base of audio signals if such reference signals have been subjected to substantially the same time compression or expansion as the audio signals. In the preferred embodiment, the reproduced audio signals are sampled and written into a sampled data delay and read out of it by means of a control circuit. The control circuit receives as input the undistorted reference signal and the reproduced reference signal which has undergone time compression or expansion. The control circuit derives a write clock signal with a frequency equal to k times the frequency of the distorted reference signal.

Abstract: In a welding gun apparatus, an improved welding gun quick connector assembly in which supply conduits may be quickly and easily connected and disconnected from a connector body. Supply conduits are securely retained by circumferentially overlapping flanges fastened down with a screw threadably adapted to a passage in the connector body. A seal intermediate between supply conduits and connector body is provided to prevent fluid and gas leakage.

Abstract: Liposomes of uniform size are produced by forming liposomes in relatively random sizes, and extruding the liposomes under pressure through a uniform-pore-size membrane to force at least some of the liposomes into smaller sizes. Extrusion may be repeated to increase uniformity of the liposomes. The liposomes may contain an encapsulated drug.

Abstract: A universal multilayer circuit prototyping board is provided having a predefined universal pattern of socket pin perforations which accommodates all standard DIP integrated circuit packages at virtually any position on the board. The universal board allows high density circuit packing while maintaining excellent electrical performance with high speed circuits.