baber/WOPTO huggingface dataset:
Patent GB-1181769-A (GB)
Title: A process for the production of Aromatic Monoalkoxyaldehyde Acetals
Inventor: ROOS ERNST
IPC: C07C43/30
Filed: 1968-09-24
Abstract: 1,181,769. Aromatic monoalkoxy aldehyde acetals. FARBENFABRIKEN BAYER A.G. 24 Sept., 1968 [17 Oct., 1967], No. 45224/68. Heading C2C. The invention comprises compounds of the Formula I wherein x represents an integer from 2 to 5, y represents an integer from 1 to 3 and R represents an optionally unsaturated aliphatic hydrocarbon radical C 1-20  containing up to two double bonds or one triple bond, or a cycloaliphatic C 5-12  radical optionally substituted by alkyl C 1-8  radicals, or an araliphatic radical C 7-12 , or the radical of a polyalkylene glycol which contains terminal hydroxy groups from 2 to 6 carbon atoms in the alkylene group and up to 33 ether oxygen atoms in the chain. They are prepared by reacting a compound of the formula wherein x represents an integer from 2 to 5 and an alcohol of the formula R(OH)a or an alkali metal alcoholate thereof, wherein R is defined as above and a represents an integer from 1 to 6, in the presence of an alkaline condensation agent, e.g. alkali metal hydroxide at a temperature of from 0 to 200‹ C. The compounds of Formula I have herbicidal activity.
Patent GB-1197409-A (GB)
Title: Improvements to Air Heaters
Inventor: DENIS JEAN-PIERRE
IPC: F23M20/00
Filed: 1968-09-24
Abstract: 1,197,409. Tubular heat exchangers. J.-P. DENIS. 24 Sept., 1968 [17 Jan., 1968], No. 45275/68. Heading F4S. In an air heater of the type wherein a plurality of horizontal glass tubes 1 are received in tube end plates 2, the inner face of each plate 2 is protected from corrosion by a suitably apertured sheet 3 of deformable plastics material. The diameter of the apertures in the sheet 3 is chosen to be less than the external diameter of the tubes 1 to ensure food fluid tightness. Each sheet 3 is attached to the plate 2 by rivets or screws 4 in grooves 5 which house joints 6 between adjacent plates. Glue may additionally be used if required. The tubes are joined at 7 to the end plates. In use air to be heated passes through the tubes and is heated by waste gases flowing over the tubes. Any deposits covering the surfaces of the tubes are removed periodically by washing with water.
Patent GB-973326-A (GB)
Title: Concrete sewers
IPC: E03F3/04
Filed: 1962-11-30
Abstract: 973,326. Conduits. A. HORN. Nov. 30, 1962 [Dec. 1, 1961], No. 45512/62. Heading E1C. A concrete sewer 1 has one or more longitudinal shallow trough seatings on the top thereof for supporting one or more subsoil drain or filter pipes of smaller diameter. In one form shown (Fig. 1) there is a single seating formed by a trough 11, with faces 12, for a pipe 50, with projecting edges supported by webs 15, webs 16 at the foot of the sewer 1 enabling it to be supported by the flanges 16. In a modified form the longitudinal edges of the seating have walls or ledges, which may have a tongue- and-groove joint with the sewer 1, which are then porous single-grain concrete. In another modification (Fig. 4) the sewer 1 and seating 30 are separate parts with co-operating locating ridges 10 and grooves 39. In a further modification the sewer 1 has a seating defined on one or each side.
Patent GB-1200935-A (GB)
Title: Improvements in rare earth phosphors activated with bismuth
IPC: C09K11/83
Filed: 1967-10-06
Abstract: 1,200,935. Luminescent materials. GENERAL ELECTRIC CO. 6 Oct., 1967 [31 Oct., 1966], No. 45686/67. Heading C4S. Luminescent material is essentially of the formula R 1 - <SP>w-y</SP>Bi<SP>w+3</SP>A<SP>y</SP>ZO 4 , wherein A is one or more of Sm, Dy, Al and Er, R=Y, Gd or Y+Gd, Z=V<SP>+5</SP>+P<SP>+5</SP>, with V<SP>+5</SP> > 0, and with p<SP>+5</SP> > 0 and up to 40 atom per cent of Z, w is greater than 0À000025 and less than 0À1, e.g. 0À01 to 0À03, and y is from 0 to 0À01. For instance, Z may contain up to 10 atom per cent P<SP>+5</SP>, balance essentially all V<SP>+5</SP>. In the preferred preparation, activator is incorporated with Y 2 O 3  by a precipitation procedure producing a mixed oxalate to be fired at 830‹ C. to form the oxide. The coprecipitated oxide and pentoxide (V 2 O 5 .P 2 O 5 ) mixed in stoichiometric proportions are fired at 1000‹ C. Additional 1 to 2 mol. per cent above stoichiometric proportions ensures compensation due to volatilization. Excess pentoxide is removed by washing the ground mixture in a sodium hydroxide, sodium carbonate or ammonia solution, dried, and reheated at 1100‹ C. Excitation by short and long U.V. radiation, electrons and X-rays, and uses in lamps, lasers, and C.R.T.'s are disclosed.
Patent GB-1000040-A (GB)
Title: Improvements in or relating to the grinding of material in grinding mills
IPC: B02C17/16
Filed: 1961-12-21
Abstract: 1,000,040. Grinding mills ; continuous discharge mixers. F. O WIENERT. Dec. 21, 1961, No. 45775/61. Headings B1C and B2A. A grinding mill having an elongate shell containing freely movable grinding bodies in at least one grinding zone, a shaft extending longitudinally through the mill and a rigid disc fixed thereto obliquely disposed with respect to the shaft axis and disposed in said grinding zone and which disc upon relative rotational movement of the shell and shaft imparts to the grinding bodies arcuate tumbling movement about the shaft axis simultaneously with oscillatory axial movement. The mill shown comprises a drum 14 having partitions 18 with apertures 19 to form communicating grinding zones 20 each containing one or more rotors 36 mounted on a shaft 32 and in the form of inclined discs 37 which may have apertures. The discs may be circular or elliptical, may taper towards their outer edges and may be provided with reinforcing plates. The partitions, which may have additional apertures, may be thicker at their outer edges and may have curved or angular faces. The zones 20 contain grinding balls 75 and different zones may contain different ball sizes. The balls may be replaced by pebbles or by lumps of the material being ground. A grate 40 is provided at the discharge end of the drum. In operation, either the shaft 32 or the drum is rotated or both are rotated in opposite directions or in the same direction but at different speeds. In a modification, Fig. 2 (not shown), the end walls of the drum are inclined to the drum axis and the partitions are parallel to the drum end walls. In another modification, Fig. 7 (not shown), the partitions, and the rotor discs, are parallel to each other and the inclination of the partitions to the drum axis may be the same as, or different from, that of the rotor discs. In a furher modification, Fig. 8 (not shown), the ends of the drum are frusto-conical and the grinding zones are of different shape. In a still further modification, Fig. 9 (not shown), the drum has a single partition and each grinding zone contains a plurality of rotor discs. Other modifications are described. For example, if the mill drum is not to be rotated, the rotor shaft may be parallel to but below the drum axis and/or a portion of the drum may be non-symmetrical and/or non-cylindrical. Further, the mill may be used for mixing materials in which case the grinding bodies in some of the zones 20 may be omitted.
Patent GB-1115988-A (GB)
Title: Improvements in heat exchangers
IPC: F28D9/00
Filed: 1965-11-03
Abstract: 1,115,988. Hollow-plate heat exchangers. G. H. F. MADDOCKS. 2 Nov., 1966 [3 Nov., 1965], No.46659/65. Heading F4S. A heat exchanger element 8 comprises two parallel .faces, tubes 9 extending between the faces, closed and open edge sections 11 and 10 on two sides and top and bottom respectively, and raised rim portions 13. The sections 11 may be straight or arcuate as shown. For a gas to gas exchanger, the tubular members may have sinuous cross-sections so that ducts are formed extending for most of the length between the open edge sections, and such that there is no line of sight path along these ducts. Filler strips of plastics may be included filling the space between the outermost tubes and the closed sections 11 to limit the volume of fluid flowing between the openings 10 in paths least affected by the tubular members 9. The elements may be formed in one piece by electroforming or electroless methods, nickel being the preferred material, and may have protective coatings of silver, gold or rhodium. In a heatexchanger unit, two examples of which are described, the elements are stacked spaced by their rim portions 13 and joined by soldering, brazing, or epoxy resin. The tube elements 9 may be displaced between adjoining elements to form a sinuous flow path.
Patent GB-1389449-A (GB)
Title: Mixing machines
IPC: B29B7/48
Filed: 1971-10-08
Abstract: 1389449 Mixing apparatus BEKEN ENG Ltd 10 Aug 1972 [8 Oct 1971] 46897/71 Heading B1C A mixer for dough and other viscous materials has a pair of intermeshing helical mixing blades 3 and a discharge duct 6 the lower portion 9 of which is shaped to form a shoot, and a discharge control member in the form of an inclined plate 11 carried by sleeves 10 slidable on the shafts 2. The plate 11 is biassed to the closed position by adjustable weights 15 and cables 13 passing over pulleys 14, or by an adjustable spring. One or more cutting wires 20 or blades (22, Figs. 3 and 4, not shown) split the material lengthwise and cut it into pieces. A powder or liquid lubricant may be introduced through the aperture 23 in plate 11. In a modification, Fig. 3, the discharge control plate (16) is pivoted and biassed by a weight (19) adjustable along a lever (18), and the lubricant is metered from a hopper (24) by an injection nozzle (25) and adjustable valve (26).
Patent GB-1528575-A (GB)
Title: Oscillators for use with ultrasonic transducers
IPC: B06B1/02
Filed: 1975-10-16
Abstract: 1528575 Transistor oscillator DAWE INSTRUMENTS Ltd 16 Oct 1975 [30 Oct 1974] 46929/74 Heading H3T In an oscillator, feeding, e.g. an ultrasonic transducer via the secondary winding 11 of a transformer, the primary winding 10 shunted by a capacitor 16 is in the collector circuit of a transistor 20, and a feedback winding 12 is connected via a tuned circuit across the base-emitter terminals of the transistor: reverse current spikes through the collector-emitter circuit of the transistor are eliminated by diode 18 in series with the collector while consequent attenuation of amplitude of oscillation is prevented by a reverse diode 19 to the emitter. The transistor swings with maximum efficiency from maximum-voltage-minimum current to the opposite across or through the collector-emitter terminals. The series tuned circuit of capacitor 25, variable inductor 24 and fixed indicator 26 is tuned to match the tuned circuit 14, 15 feeding transducer 13, and capacitor 16 is similarly selected. Bias current to the base of the transistors is supplied by resistors 22 and 9. The current waveforms at the collector and at capacitor 16 with no diodes, with diode 18, with diode 19 and with both, and the collector voltage waveform with both diodes are illustrated (Fig. 2, not shown).
Patent GB-1279283-A (GB)
Title: Water-soluble disazo dyestuffs and their complex metal compounds and process for preparing them
IPC: C09B62/495
Filed: 1969-09-24
Abstract: 1279283 Disazo dyes and their complex metal compounds FARBWERKE HOECHST AG 24 Sept 1969 [25 Sept 1968] 47051/69 Heading C4P The invention comprises water-soluble disazo dyestuffs, and their 1:1- copper, -1:2- chromium and 1 : 2-cobalt complexes, which correspond in the metal-free form to the Formula I: where D is a diazo component radical of the benzene or naphthalene series having in the o position to the azo group a substituent capable of forming a metal complex or capable of being transformed under the conditions of metallization into such a substituent, K is a coupling component radical of the benzene, naphthalene or pyrazolone series, R is a hydrogen atom or an alkyl group, X is linked to D and/or K by a grouping -NR- and represents the grouping or where R<SP>1</SP> is hydrogen or an alkyl group, R<SP>11</SP> is hydrogen, alkyl or phenyl, Y and Y<SP>1</SP> are fluorine or chlorine, m is 0 or 1 and n is 1 or 2. The dyes of Formula I may be prepared (a) by diazotizing a dyestuff of Formula 4 and reacting the product with a coupling component K, at least one reactant carrying a group -NR-X, and optionally converting the dyestuff to its 1: 1-copper, 1 : 2-chromium or 1: 2-cobalt complex, (b) coupling a diazotized component D with a dyestuff of the Formula 5 at least one reactant carrying a group-NR-X, and optionally converting the dyestuff to its 1: 1-copper, 1: 2-chromium or 1: 2-cobalt complex, (c) diazotizing a 1: 1-copper, 1 : 2- chromium or 1 : 2-cobalt complex of a dyestuff of Formula 4 and coupling the product with a coupling component K, the dyestuff obtained containing at least one grouping NR-X, or (d) acylating dyestuffs of the Formula 6 before or after conversion into a metal complex, with an acid halide to introduce the group X. Reference has been directed by the Comptroller to Specifications 1,097,361, 1,103,423, 1,123,804 and 1,245,267.
Patent GB-1294152-A (GB)
Title: A turret lathe
IPC: B23Q1/26
Filed: 1970-10-02
Abstract: 1294152 Turret slides INDEX WERKE KG HAHN & TESSKY 2 Oct 1970 [2 Oct 1969] 47087/70 Heading B3T In a turret lathe means is provided for effecting transverse displacement of the turret slide during the operation of the machine, the means comprising two oppositely lying wedge members 26 which are attached to the turret slide 14 and located between the slide and the slideway 12 and are displaceable in the longitudinal direction of movement of the slide thereby causing transverse displacement of the slide. The central region of each wedge member is provided with a tooth block 28 which meshes with a toothed sector 30 attached to the lower end of an operating rod 32. The respective rods 32 extend into a housing 36 on top of the turret slide and each carry an actuator member 40 biased by a spring 42 and which engage a sleeve 48 which is mounted on a shaft 50 mounted in the housing 36. The sleeve is drivingly connected to the indexing mechanism of the turret for synchronous operation therewith. An extension 52 of the sleeve 48 has a projection 54 which is engageable with a stop-ring 56 having six adjusting screws 58 mounted in an end-plate 60 on the housing 36 and which can be adjusted to control the traversing movement of the turret slide. In operation, the projection 54 bears against a given adjusting screw and the position of the wedge members can be adjusted by rotating the screw 58 which actuates the member 40 by way of the stop-ring and sleeve to pivot the toothed segments engaging the wedge members. When the slide moves back in operation, the wedge blocks come into contact with fixed stop members 72 after a given traverse whereby the movement of the wedges is checked while the slide continues to move as far as an end stop 80. The checking of the wedges effects axial displacement of the sleeve 48 to disengage the projection from the stop-ring. When the slide again moves forward after indexing of the turret and sleeve 48 the actuating members 40 are pivoted by the springs 42 to effect engagement of the next adjusting screw 58. At the same time the wedge members 26 are displaced thereby effecting transverse movement of the turret.
Patent GB-1142834-A (GB)
Title: Portable hand tool
IPC: B26D7/00
Filed: 1966-10-21
Abstract: 1,142,834. Cutting appliances. LOCTITE CORP. 21 Oct., 1966 [12 Nov., 1965], No. 47252/66. Heading B4B A hand tool 10 for use in the construction and repair of 0-rings from flexible rubber-like rod material composes a rod severing station 12 and bonding stations 16, 18. The station 12 comprises a number of guide holes 20 which are bisected by a slot 28 for receiving a cutting blade. The stations 16, 18 are formed by V-grooves 32, 34 in flared ends of the tool. The tool has a scale 30 for measuring the amount of rod-like material to form a particular 0-ring of the desired size. Indicia are provided adjacent the holes 20 for indicating the diameter of the rod-like material. Severing of the material to the required length is effected by passing a cutting blade through the slot 28 past the supporting hole 20. The cut rod is then removed and a quick hardening cement, adhesive or other bonding agent applied to the ends thereof which are placed in aligned abutting relationship within groove 32 or 34 and held therein during the hardening of the bonding agent.
Patent GB-1405146-A (GB)
Title: Pre-fabricated bridge constructions
IPC: E01D15/133
Filed: 1972-10-13
Abstract: 1405146 Sectional bridges BATAAFSE AANNEMING MAATSCHAPPIJ NV 13 Oct 1972 [15 Oct 1971] 47390/72 Heading E1G [Also in Division F2] In a bridge assembly wherein a deck extends between at least two bridge main girders 3 each consisting of successive sections extending along the bridge length and conjoined as by bolted flange connections 5, 6, the deck consists of abutting deck sections 2 which are shorter, in the direction of bridge length, than the girder sections and are rigidly connected thereto, while each girder section comprises a rigid hollow triangular prismatic framework 3a..c of beams, trusses or plates, the framework being triangular in cross section transverse of the bridge with the triangle base parallel to the bridge deck.  Bolted connections. As shown each end of each deck section has a pair of lower and upper apertured brackets 25, 26 seating over and clamped to frusto-conical pins 23, 24 on lower and upper plates 21, 22 on the girder. Each bracket aperture, Fig. 5, has clearance around its respective pin 23 or 24 and is centred by a ring of tapered depending fingers 31 or 32 which are forced down (and so expanded) between pin and aperture as a securing bolt 37 or 38 threaded in the respective conical pin is tightened. To connect the main girder sections end to end each set of aligned holes in the flanges 5, 6 receives Fig. 6 (not shown) a split sleeve (8) which is expanded by a bolt (14) drawing together a cup (10) and tapered plug (13).
Patent GB-1195838-A (GB)
Title: A Method of Producing Photographic Images
Inventor: WILLEMS JOZEF FRANS
IPC: G03C1/485
Filed: 1966-10-24
Abstract: 1,195,838. Processing photographic silver halide materials. GEVAERT-AGFA N. V. Oct.3, 1967 [Oct.24, 1966], No.47633/66. Heading G2C. Carbazic acid, bicarbamic acid, substituted carbazic acid and bicarbamic acids and watersoluble salts thereof are used as foggants in photographic silver halide reversal processes. They may be present in the developer used in the second development stage of a black-and-white or colour reversal process or in a processing solution with which the material is treated before the said second development, and may partially or completely replace the usual overall light exposure. Direct-positive images may be obtained by imagewise exposing an internal latent image emulsion and developing with an energetic surface developer in the presence of compounds liberating iodide or bromide ions e.g. KI, the developer containing one of the above foggants or the material being treated with a solution of one of the above foggants before the surface development.
Patent GB-1009556-A (GB)
Title: Production of xylene
IPC: C07C2/76
Filed: 1962-12-18
Abstract: Xylenes are produced by passing a charge of C8 acyclic hydrocarbons free from unsaturates and rich in 2,2,4-trimethyl pentane at 510-594 DEG C. and pressures up to atmospheric over a catalyst comprising eta-alumina and 15-25% of chromium oxide (see parent Specification), separating the effluent from the dehydrogenation zone into an aromatics fraction, a C8 hydrocarbon fraction rich in C8 acyclic hydrocarbons including 2,2,4-trimethyl pentane and C8 monoolefins, and a C4 fraction containing isobutylene, dimerizing the isobutylene to form diisobutylenes, hydrogenating the dimer and the C8 fraction to produce fresh charge free from unsaturates and rich in 2,2,4-trimethylpentane, and recovering from the aromatics fraction a C8 concentrate rich in p-xylene.  The C4 fraction with or without a fresh C4 charge containing isobutylene may be extracted with cold sulphuric acid and the extract containing isobutylene may be dimerized with a sulphuric acid catalyst, e.g. at 24-38 DEG C.
Patent GB-1097970-A (GB)
Title: Coumaranyl-n-methyl-carbamic acid esters and their use in insecticidal compositions
Inventor: HEISS RUDOLF
IPC: C07D307/86
Filed: 1965-11-23
Abstract: The invention comprises the compounds of formula <FORM:1097970/C2/1> wherein R is H or CH3.  The compounds are prepared by reacting compounds of formula <FORM:1097970/C2/2> with (a) methyl isocyanate; (b) an excess of phosgene to give the corresponding chloroformic acid esters and then with methylamine; or (c) an equivalent amount of phosgene to give the bis-(7-coumaranyl)-carbonate and then with methylamine.  The compounds are used in insecticidal compositions (see Divisions A5-A6).  2,3 - Dimethyl - 7 - hydroxycoumaran is prepared by reacting catechol with crotyl bromide to yield catechol monocrotyl ether, rearranging this by heating to 180 DEG  C. to yield 3-alpha-methyl-allyl-catechol and treating this with HBr in glacial acetic acid.ALSO:Insecticidal compositions containing as active ingredients coumararyl-N-methyl carbamic acid esters of formula <FORM:1097970/A5-A6/1> wherein R is H or CH3.  The compositions may be in the form of solutions, emulsions, suspensions, powders, pastes. Specified auxiliaries include liquids, e.g. water, xylene, benzene, chlorobenzenes, paraffins, methanol, butanol, ethanolamine and dimethylformamide; solids, e.g. kaolin, alumina, talc, chalk, silicic acid and silicates; emulsifiers, e.g. polyoxyethylene-fatty acid esters, polyoxyethylene fatty alcohol ethers and alkyl or aryl sulphonates; dispersing agents, e.g. lignin, sulphite waste liquors and methylcellulose.  In Examples the effect of the compositions on mosquitoes, house flys, moth and butterfly caterpillars, aphids, spider mites and horse radish beetles and their larvae is described.