baber/WOPTO huggingface dataset:
Patent GB-495906-A (GB)
Abstract: 495,906. Drying paper &c. BELL, J. W. Sept. 29, 1937, No. 26333. Convention date, Oct. 6, 1936. [Class 96] [Also in Group XIII] A web 11 of paper &c. to be dried passes through a narrow slot 15 into a chamber 14, around steam-heated drying rolls 10, and out through a narrow slot 16, the steam evolved from the wet paper being withdrawn at 22 at a rate less than it is evolved so that the excess escaping through slots 15, 16 prevents ingress of air, and the withdrawn steam after compression by a compressor 20 being delivered through pipes 18, 19 to the drying rolls 10 as the heating medium together with steam from an auxiliary source, e.g. boiler 17, as required to compensate for that escaping at 15, 16. The steam from the boiler is supplied through valve 28, pipe 23, and the compressor 20. The web may be supported by the usual belts or bands in its passage over rolls 10. The chamber has heatinsulated walls, is provided with plates 33 to ensure even flow of steam therefrom, and is provided externally with hoods 29, 30, and conduits 31 over the slots to remove the escaping steam.
Patent GB-1243370-A (GB)
Title: Novel indoline spiro-pyran compounds
IPC: G03C1/685
Filed: 1968-10-21
Abstract: 1,243,370. Indoline spiro-pyrans. COMPAGNIE DE SAINT-GOBAIN. 21 Oct., 1968 [24 Oct., 1967], No. 49761/68. Heading C2C. The invention comprises compounds of the formula wherein X represents the oxygen or nitrogen atom, R 1  represents an aliphatic C 1-4  radical or a phenyl or benzyl radical optionally substituted, R 2  and R 3  represents aliphatic C 1-4  radicals and R 4 -R 7  represent a hydrogen, fluorine, chlorine or bromine atom or a methyl, methoxy or phenyl radical and where They are prepared by condensing a Fischer base of the formula with an appropriately-substituted salicylaldehyde. Examples disclose the preparation of 1,3,3 - trimethyl - 2 - indoline 2<SP>1</SP> - spiro 8<SP>1</SP>- methyl coumarine (7, 8, b) pyran, of 1,3,3-trimethyl 2-indoline 2<SP>1</SP>-spiro 6<SP>1</SP>,7<SP>1</SP>-dimethyl chromone (7, 8, b)-pyran and of 1,3,3-trimethyl 2- indoline 2<SP>1</SP>-spiro quinoline (7, 8, b)-pyran.
Patent GB-1180453-A (GB)
Title: Improvements in or relating to Reciprocating Metering Pumps
IPC: F04B49/12
Filed: 1967-11-06
Abstract: 1,180,453. Reciprocating pumps. AMERICAN MACHINE & FOUNDRY CO. Nov. 6, 1967 [Nov. 18, 1966], No. 50323/67. Heading F1A. The stroke of a reciprocating pump is regulated by varying the suction or return stroke by means of an eccentric stop. An actuator 48 is secured to an abutment member 54 which in turn is secured to a stud embedded in a pump diaphragm 28. The actuator 48 is biased towards air actuating cam 44 by a spring 62, the return stroke being regulated by the engagement of the member 54 with an eccentric portion 82 on the hub 80 of an adjustment knob 76 which is spring-loaded into engagement with an indicator knob 70 secured to the pump housing. Inward movement of the knob 76 disengages teeth 84 so that the eccentric portion 82 may be adjusted to vary the return position of the member 54 and hence the suction stroke of the diaphragm. The cam 44 is driven by an electric motor 34 through gearing 36.
Patent GB-1432637-A (GB)
Title: Sulphurised lubricant additives their preparation and compositi ons containing them
IPC: C10N30/06
Filed: 1973-10-30
Abstract: 1432637 Sulphurized esters INSTITUT FRANCAIS DU PETROLE 30 Oct 1973 [3 Nov 1972 1 Dec 1972] 50393/73 Heading C2C [Also in Division C5] Sulphurized ester additives for lubricating oil are prepared by totally esterifying or transesterifying at least one aliphatic monocarboxylic or dicarboxylic acid, or derivative thereof which is capable of undergoing esterification or transesterification, with at least one ethylenically unsaturated branched chain aliphatic monohydric alcohol containing at least 8 carbon atoms per molecule, the ethylenically unsaturated alcohol being used optionally in admixture with a minor proportion of at least one saturated aliphatic monohydric alcohol; and sulphurizing the ester product. Preferred unsaturated alcohols are those prepared by condensing formaldehyde with a C 8 -C 20  branched chain monoolefin such as propylene or isobutylene oligomers, and C 8 -C 24  alcohols prepared by reduction of the aldehyde group of an α,#-unsaturated branched-chain aliphatic aldehyde by aldolization-crotonization of at least one aliphatic aldehyde having the formula in which R is a straight-chain saturated alkyl radical and X is H or a straight-chain saturated alkyl radical. Sulphurization by heating with elemental sulphur in the presence of zinc oxide or a secondary amine and the product may be reacted with a small proportion of P 4 S 3 . Unsaturated branched chain alcohols are prepared by reacting paraformaldehyde in glacial acetic acid with propylene trimer or tetramer and with isobutene dimer, and by hydrogenation of the aldehyde group of α,#-unsaturated aldehydes prepared by aldol condensation of n-heptanal, n-butanal, a mixture comprising n-hexanal, n-heptanal, n-octanal, 2-methylpentanal, 2-methylhexanal and 2-methylheptanal, and a mixture comprising n-nonanal, n-decanal, 2-methyloctanal and 2-methylnonanal, these mixtures being derived from the oxo process on C 5 -C 7  and C 8 -C 9  α-olefins respectively. Esters are prepared from the above alcohols, in some cases along with 2-ethylhexanol, isononanol, n-heptanol or a mixture of n-hexanol., n-octanol and n-decanol, using variously oleic, adipic, dodecanedioic, isononanedioic, azelaic or nonanoic acids, tall oil fatty acids and maleic anhydride.
Patent GB-1112746-A (GB)
Title: Circuit arrangement for a multi-stage, regular crosspoint arrangement
IPC: H04Q3/00
Filed: 1966-11-11
Abstract: 1,112,746. Automatic exchange systems. INTERNATIONAL STANDARD ELECTRIC CORPORATION. 11 Nov., 1966 [17 Nov,. 1965], No. 50567/66. Heading H4K. In a multistage relay switching network having a plurality of crosspoint matrices per stage, each matrix has associated therewith a marking relay whose contacts are connected in series with all the energizing coils of the relays in that matrix. During route finding, one matrix in each stage is selected and the corresponding marking relays are operated and thereafter operating potentials are applied to the relevant network inlet and outlet (the latter having been chosen from a plurality of possible outlets if necessary) whereby those crosspoint relays in the single path between the inlet and outlet come up and hold via their own contacts. The network trunking is such that each matrix in one stage has access to each of the matrices in the succeeding stages via one link only. Particular description.-Fig. 2 depicts an m x n matrix having a relay KP at each crosspoint. In all stages except the first, each matrix has an associated marking relay H and each column of a matrix has an individual busying relay Z. The crosspoint relays of a column are each connected via a decoupling diode Gl in series with a contact h, e.g. h1 in column C1, of the matrices' marking relay. As can be more clearly seen in Fig. 3, completion of the path search operation results in the h contacts in the chosen matrices being operated whereby, when potentials + U and - U1 are applied to the ends of the network, one KP relay is brought up in each stage. The H relays are released whereupon the two column busying relays Z come up and the path is then held by means of earth in the feedbridge VS1 and - U2 in the line circuit TS1. In order to prevent undue current surges through the Z relays, the by-paths e.g. Ql, h, z around these relays may include resistors so that as soon as a KP operates a low current starts to flow through its Z relay (Fig. 4, not shown).
Patent GB-1281929-A (GB)
Title: Improvements in or relating to bottle closures
Inventor: KARLAN JAC HOWARD
IPC: B65D41/48
Filed: 1969-10-15
Abstract: 1281929 Bottle caps J H KARLAN 15 Oct 1969 50649/69 Heading B8T A flexible soft elastomeric closure cap 10 has a base 13 with depending inner and outer annular skirts 14, 17 respectively. The outer skirt 14 has an inwardly facing annular groove 15 with a breadth to depth ratio of, at the most, 4. The inner skirt 17 is at least as long as its internal diameter at the base, its thickness is not more than half the depth of the annular groove 15 in the outer skirt 14, and its free end, when not constrained by the inside of the bottle neck is flared outwardly. Internal gas pressure inside the bottle 11 forces the internal skirt outwards to seal against the inside of the bottle neck as well as forcing the base to dome outwards clamping the external skirt 14 more securely around the bottle lip. The skirt 14 may be extended by a collar 19 which may be adhered to the bottle neck and which has a circumferential weakening groove or perforations 20. Tabs (23), Fig. 3 (not shown), with strengthening beads (25) and webs (24) extend radially outwards from the external skirt 14 to lift off the closure. The closure is formed of thermosetting material.
Patent GB-507154-A (GB)
Abstract: 507,154. Commutator switching arrangements. STEVENS, A. H. (Schimkus, K. E.) Dec. 9, 1937, No. 34099. [Class 38 (ii)] [Also in Group XXXVII] A mercury interrupter comprises vessels 10 joined by a capillary tube 12 the apparatus being filled with mercury except for air bubbles 16. When a circuit is completed through electrodes 14 the mercury at a point in the capillary tube volatilises and breaks the circuit. On condensing the circuit is remade, and so with suitable dimensions of the apparatus and circuit, rapid interruptions of current are produced. A modification is described in which a third mercury vessel is interposed in the middle of the capillary tube and thus produces alternate interruptions in the two halves of the tube. The interrupter is described in its application to producing high-tension direct current from a car battery for a radio set. In Fig. 3 the interrupter 11 causes interruptions in the circuit of the primary 25 of a step-up transformer, the secondary current being rectified by a valvo 32 and smoothed at 36. A full-wave rectifier system is also described.
Patent GB-510321-A (GB)
Abstract: 510,321. Nitrogenous condensation products; dyeing processes ; making leather. JOHNSON, G. W. (I.G. Farbenindustrie Akt.-Ges.). Jan. 27, 1938, No. 2653. [Classes 2 (iii) and 15 (ii)] [Also in Group VIII] Nitrogenous' condensation products of the type of amino-aldehydes are obtained by treating ammonium salts other than ammonium cyanide with formaldehyde and one or more other aldehydes containing hydrogen directly attached to the carbon atom vicinal to the aldehyde group. The reaction may be effected by heating the mixture or at room temperature or while cooling. Specified ammonium salts are the chloride, sulphate, phosphate, formate, acetate, benzene sulphonate and phthalate. The formaldehyde may be replaced by agents supplying formaldehyde, e.g., hexamethylene tetramine or paraformaldehyde. The other aldehyde may be acetic, crotonic, butyric, valeric, isohexyl, or oleyl aldehyde, or phenyl .acetaldehyde, 3-phenyl propionaldehyde or hexahydrobenzaldehyde. The products may be neutralized with ammonia and treated with further amounts of the aldehydes. The products precipitate synthetic and natural tanning substances from their solutions (including sulphite cellulose waste liquor) and also acid dyestuffs, and may be used'for fixing tanning agents and dyestuffs.
Patent GB-1537479-A (GB)
Title: Prosthetic joints
IPC: A61F2/00
Filed: 1975-12-12
Abstract: 1537479 Prosthetic joint T G WADSWORTH 8 Dec 1976 [12 Dec 1975] 51118/75 Heading A5R A prosthetic elbow joint comprises an ulnar part I provided with a securing shank 1 and a head 3 in the form of a segment of an annulus with a centre A on the joint axis, the lateral surfaces of the segment being each provided with a rectangular groove 4 bounded by rectangular section projections, the projections 30 in use of the joint locating in cutouts 12 at the base of a groove H formed in a femeral part 10. The two parts slide relative to each other as the joint is flexed. The part 10 is semi-cylindrical with grooved keys 14, 16 which are cemented in reamed apertures in the humerus H. A further joint part 19 attached to the radius R has a head formed with a concave part-spherical surface which bears on a convex surface of the part 10. The parts 1 and 10 are made of cobalt chrome and part 9 of high density polyethylene.
Patent GB-1284349-A (GB)
Title: Amplitude limiter
Inventor: GOTOH TADAMASA
IPC: H03G11/02
Filed: 1970-10-28
Abstract: 1284349 Amplitude limiters TOKYO SHIBAURA ELECTRIC CO Ltd 28 Oct 1970 51189/70 Heading H3T An amplitude limiter 37 comprises two parallel connected diodes D 11 , D 12  of opposite polarities in shunt with the output of an amplifier 33 and two serially connected diodes D 13 , D 14  of opposite polarities connected in series with the output, biasing means R 4 , R 5 , C 2  on diodes D 13 , D 14  being such that the impedance of the series diodes increases with increasing signal. The limiter presents a substantially constant input impedance to the output of the amplifier. Chokes 41, 42, by-pass any low frequencies. The amplifier may be of common base, collector or emitter configuration.
Patent GB-1441154-A (GB)
Title: Fuel element for a nuclear reactor
IPC: G21C3/08
Filed: 1973-11-05
Abstract: 1441154 Fuel elements KERNFORSCHUNG mbH GES FUER 5 Nov 1973 [14 Nov 1972] 51258/73 Heading G6C A fuel element for a nuclear reactor, especially a gas-cooled reactor, has a cladding tube 1 on which are arranged "roughness elements", (i.e. elevations on a surface which influence only the boundary layer of the coolant flow) in the form of rows 3 of cooling fins 5 at right angles to the axial direction 4, the fins 5 of adjacent rows 3 being offset relative to each other. In one embodiment, the distance between the rows 3 is equal to twice the height of the individual fins 5, and the distance between a fin 5 of one row 3 and an adjacent fin 5 of another row 3 positioned on the same surface line is equal to four times the height of the individual fins 5. The lateral clearance of the fins 5 of a row 3 is equal to or smaller than the length of the fins. The fins 5 may be circular segments of a square, rectangular or trapezoidal cross-section formed by spark erosion. Alternatively, they may be formed by opposed thread cutting so as to have a rhombic cross-section. Typically, the fins 5 are 0.8 mm high, 3.0 mm long with a clearance between individual fins in a row of 2.9 mm and a spacing between rows of 1.6 mm.
Patent GB-1470447-A (GB)
Title: Screw-driver comprising a motor and change-speed gearing
IPC: B25B21/00
Filed: 1974-11-27
Abstract: 1470447 Screwdrivers for self-drilling screws METABOWERKE KG CLOSS RAUCH & SCHNIZLER 27 Nov 1974 [17 Jan 1974] 51324/74 Headings B3N and B3C A pistol grip screwdriver comprises an electric motor (Fig. 1, not shown) connected through a manually controlled two speed gearing 3 and a spring-opened dog coupling 4 to a holder 5 for self-drilling screws. The coupling 4 is engaged when the screw in the holder is pressed against a workpiece. Gear 11 on the motor shaft drives a pinion shaft 8 whose fixed pinions 9, 10 are selectively engaged by pinions 14, 15 of change wheel 12 which is axially displaceable but rotationally fixed on output shaft 13. Wheel 12 is displaced by fork 17, which engages channel 16 and is itself displaced along fixed pin 18 by an integral rack engaged by a pinion 21 rotatably mounted in tool casing 7. Pinion 21 is rotated by handle 22 which may be held in either of two gear-engaging positions by a spring loaded ball detent arrangement 27.
Patent GB-1370385-A (GB)
Title: Treatment of thermopiles
IPC: H01L35/34
Filed: 1972-10-18
Abstract: 1370385 Welding by pressure; brazing NUCLEAR BATTERY CORP 18 Oct 1972 [18 Oct 1971] 52158/73 Heading B3R [Also in Division H1] The disclosure is, identical with that of Specification 1,370,382 (see Division G6), but the claims are directed to a method of treating a thermopile. The thermopile, which is an assembly of semiconductor elements mutually spaced by insulation but electrically connected together, is subjected to compressive loading and a capacitative discharge of 2À0 watt-seconds or more. This is said to heat micro-cracks in the semi-conductor, thereby reducing the terminal-to-terminal resistance of the thermopile. Brazing.-A header (Fig. 2) comprises an endplate 82, closing the container of a thermoelectric generator, one or a pair of niobium terminals passing through a respective bore in the plate 82 and sealed in a respective aluminium oxide plug which, itself, is sealed in the bore. The plug is of annular configuration and, prior to sealing in the bore, is washed with a molymanganese slurry which is oxidized in wet hydrogen at 1400 C. to alloy with the alumina. Surfaces of the plate 82 and terminal 86 to be joined to the plug are coated with nickel and a silver-copper or gold-copper brazing alloy is used to connect the parts together. The endplate 82 may be of niobium, tantalum or titanium. The header forms the subject of the claims of Specification 1,370,386 (see Division H2) whose disclosure is identical with that of the present Specifications 1,370,383 and 1,370,385 are also mentioned.
Patent GB-1084529-A (GB)
Title: Superconducting winding for direct or alternating current
IPC: H01F6/06
Filed: 1964-12-24
Abstract: 1,084,529. Transformers and inductors; electric coils. COMPAGNIE GENERALE D'ELECTRICITE. Dec. 24, 1964 [Dec. 30, 1963], No. 52486/64. Headings H1P and H1T. A superconductive winding for a transformer, reactor or electromagnet is formed by a thin layer of superconductive metal, compound or alloy 2 (Fig. 3) on a sheet or strip of insulating material 1 which is wound on itself to form a cylindrical or pancake coil. The insulating sheet 1 may carry alternate layers of non- superconductive material such as aluminium and superconductive material such as lead, niobium, niobium-zirconium or niobium tin and may be made of ethylene polyterephthalate. Current is led into and out of the coil by aluminium cylinders 3, 4. Two coils in series may be formed by suitable shaping of the insulating sheet (Fig. 5, not shown).
Patent GB-1526298-A (GB)
Title: Production of dyed images on aluminium or aluminium alloy plates
IPC: G03F7/022
Filed: 1975-12-24
Abstract: 1526298 Diazide materials for forming dyed aluminium or aluminium alloy plates FUJI PHOTO FILM CO Ltd 24 Dec 1975 [27 Dec 1974] 52867/75 Heading G2C A method of producing a dyed image on an aluminium or aluminium alloy plate e.g. as nameplates, comprises (i) imagewise exposing a material comprising an aluminium or aluminium alloy plate having an aluminium oxide layer 5 to 20 microns thick and coated with a light-sensitive layer containing an o-quinone diazide, (ii) removing the exposed areas of the layer with alkaline developer (iii) treating the material with acid e.g. phosphoric or sulphuric (iv) dying the bared areas of the oxide film and (v) removing the remaining diazide layer. The pores of the oxide layer are sealed by dipping in boiling water. Steps (i) to (iv) can be repeated to obtain a multi-colour image, the first dyed image being protected by a polyvinyl alcohol layer. The light-sensitive layer may also contain dyes or pigments and an alkali-soluble resin e.g. a phenol or cresol formaldehyde resin, a styrene-maleic anhydride copolymer or shellac. Numerous oil soluble dyes for dying the oxide layer are listed. The oxide pore size produced on anodizing is 50 to 350.
Patent GB-1376029-A (GB)
Title: Method for producing oil pitch and coke
IPC: C10B55/02
Filed: 1972-11-16
Abstract: 1376029 Oil, pitch and coke; cracking OSAKA GAS CO Ltd 16 Nov 1972 [27 Nov 1971] 52869/72 Heading C5E Oil, pitch and coke are produced by heating crude oil or distillation residue thereof having a Conradson carbon residue of 0À1 to 25% by wt. and containing 5 to 80% by wt. of substances boiling at at least 600‹ C., in the presence of a powdery carbonaceous substance having a Conradson carbon residue of at least 50% by wt. such that the weight of carbon residue in the total amount of the carbonaceous substance is in the range of one-tenth to ten times the weight of carbon residue in the total amount of the oil or residue, at 350‹ to 600‹ C. under an increased pressure of at least 2 kg./cm.<SP>2</SP> gauge to produce oil, pitch and coke, and separating the pitch and coke from the oil. The powdery substance may be coal, coke, graphite, active carbon, carbonized resin powders or mixtures thereof, with a particle size of not more than 5 mm. The pitch obtained may be further heated at 350‹ to 510‹ C. under an increased pressure of 2 to 35 kg./cm.<SP>2</SP> and separated from the reaction mixture.
Patent GB-1473308-A (GB)
Title: Process for coating cementitious substrates
IPC: E04D1/16
Filed: 1973-11-15
Abstract: 1473308 Resin coatings on cementitious surfaces MONIER RESEARCH & DEVELOPMENT PTY Ltd 10 Feb 1975 [15 Nov 1973 (2)] 53046/73 and 53047/73 Heading B2E A building element (e.g. tile, slab or cladding) having a formed cementitious surface is coated with a non-saponifiable film-forming coating material dissolved in a non-aqueous solvent with or without plasticisers and/or pigments, the coating being applied e.g. by pouring, dipping, brushing or preferably spraying, before at least the surface of the element has undergone any curing or loss of water. Suitable cementitious surface material is Portland cement optionally mixed with sand and/or coarse aggregate. Alternatively such cementitious material is coated with a cementitious surface layer e.g. of mortar, or of Portland cement optionally mixed with a pigment. Suitable film-forming materials are acrylic and vinyl polymers and copolymers, chlorinated rubber, chlorinate polyethylene, and chlorinated polypropylene. Polyesters and paraffins are mentioned as plasticisers.
Patent GB-1374507-A (GB)
Title: System and device for continuous cutting and reducing rod segments
IPC: A24C5/28
Filed: 1972-11-16
Abstract: 1374507 Continuous-rod cut-off AMP Inc 16 Nov 1972 [18 Nov 1971] 53069/72 Heading A2C A continuous cigarette rod B is first cut into multiple cigarette length segments and these segments are then further cut into single cigarette lengths S while remaining in alignment and in motion with the continuous rod B. The cutter comprises two (or more) blades 13, 14 mounted for rotation about an axis oblique to the longitudinal axis of the rod B. The blades 13, 14 angularly offset by 180‹ from each other relative to their axis of rotation, blade 14 cutting double length segments for subsequent bisection by blade 13 into single lengths S. The rod B is guided by a fixed intermediate tube 30 and two reciprocable cutting guide tubes 17. The tubes 17 are each supported by long leaf springs (20, 21) to the frame of the machine in known manner, and are reciprocated separately by two crank mechanisms 28, 124 and 29, 224 respectively in out of phase syncronism.
Patent GB-1094148-A (GB)
Title: Improvements in or relating to mixers
IPC: B01F15/00
Filed: 1965-12-14
Abstract: 1,094,148. Discharging from mixers. MASCHINENFABRIK BUCKAU R. WOLF A.G. Dec. 14, 1965 [Dec. 15, 1964], No. 53132/65. Heading B1C. A mixing device comprises two mixing elements (shown as shafts 3a, 3b with vanes 4) disposed within and mounted on the end walls (2) of a trough-shaped vessel which is divided longitudinally into two sections along its base. Each section, comprising a piece of the divided base and an attached side wall, is pivotally mounted on the adjacent shaft and is pivoted by a hydraulic piston and cylinder 10, the two sections being moved apart for emptying the vessel. The sections may be made of a frame 7 lined with a flexible plastics material 9 and the shafts driven to move material in the trough in opposite directions. More than two elements may be used with the two sections pivoting about the outermost elements.