Abstract: Programmatic detection of time-gap defects in computer system hardware where data is corrupted without detection by the computer system. A detection module initiates data transfers between devices in a computer system. An interrupt service routine interrupts the process by inserting a delay into the data transfer. The detection module then checks for time-gap defects by determining if data was corrupted which went undetected by the computer system. The detection module may repeat the data transfer and insert successively longer delays until a time-gap defect is detected or until a maximum delay value is reached. The results of any time-gap defects found may be output to a user. The length of the delays inserted into a data transfer may be determined dynamically using an iterative search technique to more rapidly converge on time-gap defects. Both bisection and Fibonacci search methods are examples that may be used.

Abstract: An apparatus for positioning a workpiece guiding fence relative to a rotary cutter projecting through the top surface of a work table, comprising a plurality of major components, primarily formed by aluminum extrusions, including a base element securable to the work table surface and having upstanding guiding ribs, an elongated hollow carriage slidably mounted on said ribs and defining a partially cylindrical elongated recess mounting an elongated lead screw. A fence is secured to one end of the carriage. A threaded segment is mounted on a force transmitting element which is moved laterally to engage the threaded segment with the lead screw by a pivoted camming lever having three positions. In the first position, the threaded segment is disengaged from the lead screw, permitting unrestricted longitudinal movement of the carriage relative to the base.

Abstract: A workpiece guiding fence for a woodworking machine having a rotating vertical axis cutting tool comprises a fence support of hollow rectangular configuration defining a chamber which is connectable to a vacuum source for removal of dust and chips. A three part fence structure comprises a forward fence portion, a rearward fence portion, and an insert portion are adjustably positionable on the fence support. The insert portion is fabricated from a cuttable material and is moved into full engagement with the rotating cutting tool to provide a recess conforming to the configuration of the cutting tool. When a workpiece is guided along the aforedescribed three part fence, dust and chips produced by the cutting operation are withdrawn into the fence support by the vacuum source.

Abstract: A method and an apparatus for sampling a reference signal so as to generate an error signal indicative of a phase error between an actual sampling phase and a desired sampling phase. The desired sampling phase is displaceable from an optimum sampling phase, so as to facilitate the sampling of an NTSC color burst signal or to effect hue control during sampling of the modulated chroma sub-carrier. The reference signal is sampled at the frequency of said signal and a plurality of said samples are accumulated. After said samples have been accumulated, said accumulation is multiplied by the sine or by the cosine of the phase displacement angle between the optimum sampling phase and the derived sampling phase.

Abstract: Method and apparatus for the fixturing and positioning of objects such as workpieces or lenses in a repeatably presettable position relative to, for example, a cutting tool or other optical components includes a fixed base (40), a carriage (20) and a lead screw (30) rotatable with respect to the fixed base. The carriage (20) translates relative to the base and moves objects attached to it. The exact position of the carriage is indexed by first pressing a button (80A) to release an inside threaded concave cylindrical clamping piece (64) between the carriage and the lead screw and manually moving the carriage (20) to a desired location dictated by a scale (42A, 42B) on the fixed base (40) to relocate to a course number of thread pitch spacings.

Abstract: A woodworking fence includes a dovetail slot into which a stop block and a push fixture each having a dovetail protrusion are in slidable engagement. Operation of a thumbscrew extending through the stop block wedges the block protrusion into firm fixed engagement with the fence dovetail slot. A bottom section of the stop block is undercut to form a relieved space which prevents accumulation of chips resulting from a cutting operation. A workpiece is pushed into a cutter by the push fixture which slides along a work surface and is kept in alignment by the push fixture dovetail protrusion sliding in the fence slot. The push fixture is relieved away from the work surface to avoid damage to the push fixture as the cutting tool cuts the portion of the workpiece adjacent to the push fixture. An erasable polycarbonate strip is disposed on the fence and has a permanent arrow locating the center of the cutting tool, to assist in locating the workpieces and stop block.

Abstract: A template system has a series of individual joint-forming templates partially die-cut in a transparent flexible plastic sheet reverse-side printed with a series of linear indicia parallel to each other indicating the position of each cut to be made in a first workpiece. A second series of linear indicia parallel to each other and different in physical appearance in color, line weight or line type, dotted or solid, than the first series of indicia, indicate the position of each cut to be made in a second workpiece. The executed cuts on the two workpieces results in an interfitted joint between the workpieces such as a dovetail or box joint. A number of bands or templates are contained on a plastic sheet which are adhesively mounted on a paper substrate.

Abstract: The catalytic alkylation of primary and secondary amino groups in linear polyamines using an "activated" copper catalyst.

Abstract: An entertainment structure principally intended to comprise a cinematic auditorium. The structure has a horizontally disposed floor or decking support plate on which seating for members of an audience is arrangable and support means on which the support plate is rotatably mounted. Orientation varying means are operable to tilt the support plate, from the horizontal, in a required direction; while drive means are operable to rotate said support plate on said support means about an upwardly extending axis. The structure also includes a drive system operable to actuate said orientation varying means, and control means operable to control actuation of said drive means and said drive system for varying the angular disposition and tilt of said support plate with respect to said axis. In presentation of a cinematic programme, viewers perception of the action is enhanced by such rotation and tilting being synchronized and in concert with visual and aural action of the programme.

Abstract: A process for preparing alkyldimethylamines which comprises passing through a fixed bed, containing a copper catalyst, optionally chromium oxide, and an oxide of a Group I metal, selected amounts of dimethylamine and an alcohol or mixtures of alcohols.

Abstract: A process for preparing alkyldimethylamines which comprises passing through a fixed bed, containing a copper catalyst and, optionally, chromium oxide, mounted on magnesium aluminate spinel support, dimethylamine and an alcohol or mixture of alcohols.

Abstract: Radiation-curable coating compositions and inks which have as a component a polymerizable monomer or a mixture of polymerizable monomers, said monomer or monomers being represented by the formula: ##STR1## where Z represents a divalent aromatic, aliphatic or cycloaliphatic radical such as the following: ##STR2## and R is substantially an unsaturated monovalent organic radical of a polyfunctional polyethylenecally unsaturated ester.

Abstract: Radiation-curable vehicles, and compositions containing such vehicles, for use in inks, paints, coatings, or similar compositions, such vehicles being operative without the inclusion of photo-initiators or photo-decomposible materials to accelerate the cure, and comprising condensation products of aldehydes and ketones, and such compositions being substantially free of acrylic or allylic moieties.

Abstract: Radiation-curable coating compositions and inks which have as a component a polymerizable monomer or a mixture of polymerizable monomers, said monomer or monomers being represented by the formula: ##STR1## where Z represents a divalent aromatic, aliphatic or cycloaliphatic radical such as the following: ##STR2## and R is substantially an unsaturated monovalent organic radical of a polyfunctional polyethylenecally unsaturated ester.

Abstract: The compound N-trimethylbenzyl diethylenetriamine and its use in a disinfectant and cleansing composition containing a surfactant selected from the group consisting of anionic, cationic and non-ionic surfactants.

Abstract: A method of disinfecting hard surfaces by applying thereto N-trimethylbenzyl ethylenediamine, and the use of said compound in admixture with anionic, cationic or non-ionic surfactants to provide a disinfectant and cleansing composition.

Abstract: Antimicrobial 1,2,4,5-tetrasubstituted benzenes having the structure: ##SPC1##Wherein R and R' may be methyl, or a halogen when R'" is --CH.sub.2 --; or R and R', taken together, may be methylene dioxy; R" may be methyl or nitro; R'" may be absent or may be --CH.sub.2 -- or --CH=; and X is the residue of a substituted amino or a polyamino radical.

Abstract: Esters of the formula ##STR1## wherein X is chlorine or bromine and B is a benzyl group of the formula ##STR2## where Y and Z may be the same or different and are selected from the group consisting of hydrogen, halogen, lower alkyl, lowr alkoxy, phenyl, phenoxy, lower alkyl phenyl, lower alkyl phenoxy, halophenyl and halophenoxy, are prepared by transesterification between BOH and a compound of the formula ##STR3## wherein L is a lower alkyl radical of between 1 and 4 carbon atoms, using as catalyst an organometallic compound selected from (RO).sub.4 Ti and R'.sub.2 SnO, where R and R' are alkyl radicals of between 1 and 6 carbon atoms.Useful organometallic catalysts include tetrabutyl titanate, tetraisopropyl titanate, and dibutyl tin(IV)oxide. About 1% by weight of the total charge of reactants is catalyst.The process is conducted at 100.degree.-200.degree. C.