Abstract: A heat sensitive recording material, comprising a) at least one colour forming compound, and b) at least one developer of the formula  wherein R1 is unsubstituted or substituted phenyl, naphthyl or C1-C20alkyl, X is a group of the formula A is unsubstituted or substituted phenylene, naphthylene or C1-C12alkylene, or is an unsubstituted or substituted heterocyclic group, B is a linking group of formula —O—SO2—, —SO2—O—, —NH—SO2—, —SO2—NH—, —S—SO2—, —O—CO—, —O—CO—NH—, —NH—CO—, —NH—CO—O—, —S—CO—NH—, —S—CS—NH—, —CO—NH—SO2—, —O—CO—NH—SO2—, —NH═CH—, —CO—NH—CO—, —S—, —CO—, —O—, —SO2—NH—CO—, —O&m

Abstract: A heat sensitive recording material comprising a recording layer formed on a substrate and containing at least one colourless or light-coloured colour former and at least one colour developer, the material being characterised in that the recording material gives a blue image, and the colour developer being at least one compound represented by the formula (1) wherein R1 is unsubstituted or substituted phenyl, naphthyl or C1-C20alkyl, X is a group of the formula (a), (b), or (c), A is unsubstituted or substituted phenylene, naphthylene or C1-C12alkylene, or is an unsubstituted or substituted heterocyclic group, B is a linking group of formula: —O—SO2—, —SO2—O—, —NH—SO2—, —SO2—NH—, —S—SO2—, —O—CO—, —O—CO—NH—, —NH—CO—, —NH—CO—O—, —S—CO—NH—, —S—CS—NH—, —CO—NH—SO2—, —

Abstract: The railroad trackwork switch assembly of the present invention is essentially comprised of a relatively fixed conventional stock rail, a conventional switch point relatively movable into and out of abutting engagement with the stock rail, a target magnetic field source array, a controller housing element affixed to the switch stock rail and containing a Hall-effect sensor array, and electrical/electronic circuitry interconnecting the invention Hall-effect sensor array element to a power source and to an external switch closure condition signal visual display.

Abstract: A monophase solid solution comprising a plurality of color formers selected from the group consisting essentially of the fluoran type, phthalide type, phenoxazine type, phenothiazine type, rhodamine lactam type, leuco-auramine type, triphenylmethane type, spiropyran type, benzoxazine type, quinazoline type of color formers and mixtures thereof, preferably wherein the color forming materials are selected from the fluoran and phthalide type of color former and mixtures thereof.

Abstract: The invention relates to crystalline salts of the compound (E)-7-[4-(4-fluorophenyl)-6-iso-propyl-2-[methyl(methyl-sulfonyl)amino]pyrimidin-5-yl]-(3R,5S)-3,5-dihydroxyhept-6-enoic acid of formula (I),as well as processes for their manufacture, pharmaceutical compositions containing them, and their uses.

Abstract: A liquid short-chain polymer of the general formula RaSi(OH)b or (R)aSiHb(OH)c is deposited on a substrate, where a+b=4 or a+b+c=4, respectively, a, b and c are integers, R is a carbon-containing group and a silicon to carbon bond is indicated by Fourier Transfer Infrared analysis. The short-chain polymer is then subjected to further polymerization to form an amorphous structure of the general formula (RxSiOy)n, where x and y are integers, x+y=4, x≠0, n equals 1 to ∞, R is a carbon-containing group and a silicon to carbon bond is indicated by Fourier Transfer Infrared analysis.

Abstract: Disclosed are a novel crystal form of the fluoran compound represented by formula (I) as characterised by specific X-ray powder diffraction pattern and melting range; process for the preparation of said novel crystal form and recording materials comprising the said crystal form.

Abstract: A head rest sleeve for receiving a head rest support rod having a diameter within a known tolerance range is formed of a resilient material and has a body having an axial bore. Integral with the inside of the body and disposed thereabout are at least two pairs of compressible crush ribs which protrude radially and extend the length of the body. The distance of protrusion of the ribs corresponds to the minimum possible diameter of the support rod. Located between each pair of ribs and integral therewith is a web which protrudes radially a distance corresponding to the maximum possible diameter of the support rod. When the support rod is inserted into the sleeve, the rod frictionally engages the crush ribs uniformly along its length and, when the diameter of the support rod is greater than the minimum possible diameter, compresses the ribs a uniform distance to allow the support rod to be moved in the sleeve.

Abstract: A process for the scrubbing of species of an element of Group 3, 4 and 5(b) of the Periodic Table from a gas stream. The process comprises contacting the gas stream with an aqueous solution of hydrofluoric acid (HF) or a solution containing the hydrogen fluoride ion HF.sub.2.sup.- and an oxidizing agent.

Abstract: A method for the production of a keto acid having the general formula ##STR1## wherein R1 and R2 independently represent a straight or branched chain alkyl of 1-18 carbon atoms, a cycloalkyl of 4-8 carbon atoms or a phenyl, each of which may be substituted by at least one substituent selected from the group consisting of halogen atoms and alkyls having 1-4 carbon atoms, an aralkyl of 7-10 carbon atoms, alkoxyalkyl having 2-20 carbon atoms, tetrahydrofuryl alkyl, alkylcarboxy alkyl, alkylcarboxy benzyl, or R1 and R2 together with the adjacent nitrogen atom may form a heterocyclic ring, or one of R.sub.1 and R.sub.2 is hydrogen, but R1 and R2 may not simultaneously be methyl or ethyl or benzyl which comprises reacting a m-amino phenol having the general formula ##STR2## wherein R1 and R2 are the same as above, with phthalic anhydride, in an organic solvent in an amount of less than 0.5 parts by weight per part of m-amino phenol.

Abstract: A method for the purification of a keto acid having the general formula ##STR1## wherein R1 and R2 independently represent a straight or branched chain alkyl of 1-18 carbon atoms, a cycloalkyl of 4-8 carbon atoms or a phenyl both of which may be substituted by at least one substituent selected from the group consisting of halogen atoms and alkyls having 1-4 carbon atoms, an aralkyl of 7-10 carbon atoms, alkoxyalkyl having 2-20 carbon atoms, tetrahydrofuryl alkyl, alkylcarboxy alkyl, alkyl carboxy benzyl, or R1 and R2 together with the adjacent nitrogen atom may form a heterocyclic ring, or one of R.sub.1 and R.sub.2 is hydrogen, which comprises slurrying the keto acid with an alcohol solvent, maintaining the slurry at elevated temperature in a sealed vessel until the Rhodamine impurity has dissolved, cooling and isolating the pure keto acid by filtration.

Abstract: The apparatus provides a locking mechanism for an armrest of an automobile or similar motor vehicle to a structural pin or post. The mechanism includes a cap with a lateral slit into which a button and spring are assembled. The spring outwardly biases the button which is limited in its outward travel by a detent arrangement which maintains the outer portion of the button flush with the cap. In this arrangement; the spring further engages a circumferential slot on the structural pin or post thereby locking the armrest to the structural pin or post. However, in order to remove the armrest from the structural pin or post, the user pushes the button inwardly, thereby compressing the spring and moving the spring out of the circumferential notch thereby unlocking the armrest from the structural pin or post and allowing the free removal thereof.

Abstract: A process for preparing an antifungal azole compound of formula (I) by reacting an epoxide with hydrazine to from a hydrazino compound which is subsequently reacted with an iminoether. The amidrazone product is subsequently reacted with an orthoformate to provide the antifungal azole. The azole, known as ZD0870, shows good activity against human fungal infections including Candida albicans, Cryptococcus neoformans and Aspergillus fumigatus.

Abstract: An automobile decklid pop-up bumper for assembly with an apertured workpiece, such as the framework of an automobile engine compartment having an aperture and a helical internal marginal portion defined around the aperture, includes a housing with an enlarged end portion for engaging the automobile hood and a shank portion extending from the enlarged end portion adapted to be received through the aperture. The shank portion has a helical thread for threadingly engaging the helical marginal portion around the aperture when the bumper is assembled with the workpiece. The housing has an axial bore with a portion of reduced radius within the enlarged end portion. The portion of reduced radius defines a shoulder.

Abstract: Press-type apparatus for thermally bonding thermoplastic sheet material workpieces is provided with a pair of opposed platen assemblies which each include an inflatable set of compliant diaphragm members, a pair of opposed heat sources which may be brought into and retracted from contact with the diaphragm members, and a source of pressurized fluid for inflating the diaphragm sets and for cooling the heated workpieces. The method for operating the press-type apparatus basically involves both heating and cooling the assembled workpieces while they are simultaneously being retained in a condition of being clamped by the inflatable sets of the diaphragm members.

Abstract: Press-type apparatus for thermally bonding thermoplastic sheet material workpieces is provided with a pair of opposed platen assemblies which each include an inflatable set of compliant diaphragm members, a pair of opposed heat sources which may be brought into and retracted from contact with the diaphragm members, and a source of pressurized fluid for inflating the diaphragm sets and for cooling the heated workpieces. The method for operating the press-type apparatus basically involves both heating and cooling the assembled workpieces while they are simultaneously being retained in a condition of being clamped by the inflatable sets of the diaphragm members.

Abstract: Improved methods for reproducing an image are disclosed. Images are created using dots or patterns which are substantially quasiperiodic and thereby eliminate Moire interference patterns. In multi-color applications, the disclosed methods simplify the color overlay process. Also disclosed are patterns for creating half-tone images which do not exhibit Moire interference patterns when overlaid. Electronic display apparatus using these patterns are also disclosed.

Abstract: Improved methods for reproducing an image are disclosed. Images are created using dots or patterns which are substantially quasiperiodic and thereby eliminate Moire' interference patterns. In multi-color applications, the disclosed methods simplify the color overlay process. Also disclosed are patterns for creating half-tone images which do not exhibit Moire' interference patterns when overlaid. Electronic display apparatus using these patterns are also disclosed.

Abstract: This invention relates to portable machines for welding together individual thermoplastic sheets in situ. The machine heats different and opposing thermoplastic sheets using independently controlled electric, radiant heat sources and then compresses the sheets beneath an endless compression belt to complete the weld thus forming a unitary membrane.

Abstract: Improved methods for reproducing an image are disclosed. Images are created using dots or patterns which are substantially quasiperiodic and thereby eliminate Moire interference patterns. In multi-color applications, the disclosed methods simplify the color overlay process. Also disclosed are patterns for creating half-tone images which do not exhibit Moire interference patterns when overlaid. Electronic display apparatus using these patterns are also disclosed.