Abstract: This invention relates to compositions and the synthesis thereof of novel phosphorous esters of bisphenols which are effective broad spectrum acaricides and insecticides.

Abstract: In an optical recording system, a media disk for writing information has a plurality of information tracks with preformatted clock location indications written on the tracks. Writing is accomplished by making a written indication at a predetermined location between preformatted clock locations where the predetermined location is representative of the particular data to be written. Proper location of the preformatted clock location indicia on adjacent tracks provides for proper track crossing information when track addressing occurs as well as proper address location on particular tracks.

Abstract: An article having a primed surface or improved electric charge transfer properties is disclosed. The surface has discrete sites of inorganic materials thereon.

Abstract: A transformer has a primary and a secondary. The primary is supplied by a source and is divided into permanent and selectable turns. Switch circuitry is connected by taps to the segments to selectively energize or de-energize them. The secondary is connected by a rectifier and filter to a voltage regulator which supplies a constant voltage to a load. Circuitry senses the voltage drop across the voltage regulator and comparator circuitry compares the series regulator voltage drop to reference values. The comparator generates error signals whenever the voltage drop falls outside of a desired range above the drop-out voltage of the regulator. The error signal is transmitted to an up/down counter which correspondingly increases or decreases its count. The count of the up/down counter is decoded by switch control circuitry to open and close the appropriate switches S.sub.1 -S.sub.6 to energize the desired turns of the primary to bring the series regulator voltage drop back within the desired range.

Abstract: The non-linear alternating current transducer includes a current transformer core (14, 50 or 80) comprising a yoke (14, 50 or 80) for receiving a line conductor (20 or 110) and a secondary winding (22 or 86). The yoke (14, 50 or 80) has an air gap (19, 56 or 101-105) configured to provide a non-linear magnetic circuit response for changes in current through the line conductor (20 or 110). The non-linear magnetic circuit response provides a logarithmic voltage output across the secondary winding (22 or 86). The current transformer (12) is used in a control circuit (10) for sensing, monitoring and interrupting current in the line conductor (20 or 110) such that a trip coil is energized to open the circuit whenever current is sensed above a predetermined current. Also, the logarithmic response provides for high gain at low currents and low gain at high currents to that a very uniform percentage-of-reading accuracy is obtained with a meter operating off of the secondary winding.

Abstract: A bus contention circuit, is employed for each unit of a system capable of seizing use of a bus, wherein the units are arranged in a priority order. Priority resolution is accomplished by registering a request to seize use of the bus from any unit where either (1) no other requests are so registered or (2) the requesting unit is of lower priority than a unit whose request is already registered. When the bus becomes available for use, use is allocated to the unit with highest priority whose request is already registered.

Abstract: A single reel magnetic tape cartridge includes a leader block for interfacing with an automatic threading system in a tape drive. The leader block has a slot in its leading surface that precedes an enlarged receiving cavity. The cavity and slot interface with a coupling device in a positive connection to unwind the tape from the reel into the tape drive.

Abstract: A PC board supported by a frame has an electronic chip secured thereto. The chip has a pair of heat exchange fins. Each fin projects through a groove and into a channel of a cooling module intermediate a cooling surface of the cooling module and an expansible conduit. Each expansible conduit is totally contained within one of the channels of the cooling module and has an expanded condition and a collapsed condition. When the conduits are in their collapsed condition, the fins can be inserted through the grooves and moved along the channels of the cooling module. When the conduits are in their expanded condition, they press against the fins to force the fins against the cooling surfaces of the cooling module to cool the chip. When the expansible conduits are collapsed, the fins can be withdrawn from the cooling module channels as the PC board is withdrawn from the frame.

Abstract: A manufacturing process for making a finer ferrite powder which can then be used to make a very dense block of the ferrite ceramic. The process for making the powder includes the steps of co-precipitation of an aqueous solution of metal ions and an ammonium oxalate solution. The co-precipitation particles are separated, washed and dried. The particles are low-temperature calcined and then vibro-energy or ball milled and dried. The particles are fluffed and broken up in a blender and pressed into a mold for sintering and pressing in a hot isostatic press procedure. The ferrite blocks are then post annealed in an oxygen atmosphere and cooled to form a dense magnetic ceramic particle. Preferably the process is for use in the production of nickel-zinc ferrite used for magnetic heads.

Abstract: A plurality of flangeless reel hubs store webs of a flexible material from a slitting operation. To quickly remove the filled reels from the individual clutch members, the inner driven diameter of the hub of the reel includes elongated diamond-shaped teeth. These teeth match with slots in the individual driving clutches. The teeth are centered and driven by the shaped slots which align and positively drive the reel. Relief cutouts are provided to accommodate the compression pressure against the hub by the many layers of web material wound under high tension onto the outer circumference of the reel hub. A single shaft with slots to match the teeth in the reel can be used to align the reels, and individual vacuum columns can accommodate the tension differences between the individual webs.

Abstract: Esters of 3,5-dibromo-4-hydroxybenzonitrile can be prepared in high yields from 4-cyanophenol in a single solvent. In this manner, the 3,5-dibromo-4-hydroxybenzonitrile intermediate need not be isolated, and therefore the bromination and esterification reactions can be performed in one reactor. Preferably, the bromination is accomplished with bromine chloride in the presence of 1,1,2-trichloroethane followed by esterification with an acid chloride in the same solvent.

Abstract: This invention relates to chewing insect toxicant compositions comprising (1) a 1-(mono-substituted phenyl)-3-benzoyl urea compound in admixture with (2) an amount sufficient to enhance the chewing insect toxicity of said urea compound of a phosphorous-containing compound. This invention is also directed to chewing insect toxicant compositions comprising an acceptable carrier and as the active toxicant an effective amount of the composition of this invention as well as to a method of controlling insects by subjecting them to an effective amount of the composition of this invention.

Abstract: Esters of 3,5-dibromo-4-hydroxybenzonitrile can be prepared in high yields from 4-cyanophenol by reacting said phenol with preformed bromine chloride in 3% aqueous hydrogen bromide and then azeotropically distilling off the solvent/reaction medium with an aromatic hydrocarbon which then serves as the esterifying solvent medium for reaction with an acid halide. In this manner, both reactions can be accomplished without removing the product of the bromination reaction from the reaction vessel, i.e., a solids separation step is avoided.

Abstract: Novel phosphorous esters of substituted phenols have been found to exhibit insecticidal and miticidal activity.

Abstract: Timber support poles are given desired breaking properties to reduce the deceleration of a vehicle that collides with the pole by cutting one or more recesses in the pole, and filling the recesses with a polymeric filler composition.

Abstract: Vapor-sorbing particle-filled sheet material having a low insulation value and useful for providing reduced-stress vapor-sorbing garments. The sheet material comprises at least one permeable support fabric attached to a fibrous web which comprises a coherent mass of melt-blown fibers and vapor-sorptive particles dispersed in the mass of fibers.

Abstract: This invention relates to novel esters of benzofuranyl acids, novel intermediates therefor, synthesis thereof, and the control of pests.

Abstract: New sorbent sheet products are prepared comprising a coherent web of entangled blown fibers prepared by extruding liquid fiber-forming material into a high-velocity gaseous stream and an array of super absorbent polymeric particles dispersed within the web.