baber/WOPTO huggingface dataset:
Patent GB-1242972-A (GB)
Title: Improvements in or relating to the construction and manufacture of gear members
IPC: B29C70/70
Filed: 1969-10-10
Abstract: 1,242,972. Moulding gear-wheels. USM CORP. 10 Oct., 1969 [11 Oct., 1968], No. 49765/69. Heading B5A. [Also in Division F2] A method of making a gear member comprises the steps of (a) providing a mould cavity having mould surfaces including a circular series of gear teeth, (b) placing within the cavity closely adjacent to the teeth and uniformly spaced therefrom a preheated rigid metal annular member of generally uniform cross-section (c) introducing heated thermoplastic material under pressure into the mould cavity to envelope substantially the entire annular member and (d) removing the completed gear member from the mould cavity, in step (b) the annular member being pre-heated to a temperature above that of the heated thermoplastic material in order to retard and control the rate of cooling of the thermoplastic material as it sets. Preferably the metal ring is of steel or sintered iron and the thermoplastic material an acetal. The gear may be the torque reaction member in a harmonic drive mechanism.
Patent GB-1167178-A (GB)
Title: Fuel Cell.
IPC: H01M8/08
Filed: 1966-11-10
Abstract: 1,167,178. Fuel cells. SIEMENS A.G., and VARTA A.G. 10 Nov., 1966 [13 Nov., 1965], No. 50527/66. Heading H1B. In a fuel cell provided with single-layer, hydrophobic, gas diffusion electrodes each having a spectrum of pores of various sizes, liquid electrolyte in electrolyte spaces between adjacent electrodes and in contact with the porous hydrophobic layer of each of those adjacent electrodes, a gas space in communication with the porous hydrophobic layer of each electrode through a porous hydrophobic zone, each gas space containing gas under pressure less than the hydrostatic pressure of the liquid electrolyte, the hydrostatic pressure being such that the liquid electrolyte enters at least some of the pores of the porous hydrophobic layer of each electrode against the capillary depression of the pores, the gas pressure and the capillary depression of the pores of each porous hydrophobic zone on the liquid electrolyte are such that the electrolyte cannot penetrate into the gas spaces. In the embodiment shown in the drawing electrolyte 4 and 5 penetrates at least some of the pores of the porous, hydrophobic layer 1 of a hydrophobic, gas diffusion electrode 10 in the form of a disc or plate. Gas is fed to the electrode by a tube 6 and residual gas is removed by a tube 7. Porous hydrophobic inserts or zones 2 and 2<SP>1</SP> (which may encircle the entire edge or periphery of electrode 10) have pores such that the sum of the gas pressure and the capillary depression of the pores of inserts or zones 2 and 2<SP>1</SP> prevent the electrolyte entering tubes 6 and 7.
Patent GB-1430667-A (GB)
Title: Supersonic centrifugal compressors
IPC: F04D21/00
Filed: 1973-11-02
Abstract: 1430667 Centrifugal compressors COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 2 Nov 1973 [6 Nov 1972] 51025/73 Heading F1C In a supersonic centrifugal compressor comprising a disc 1 having blades 2 and extending beyond the blades to form a plane circular ring 3, and a fixed front housing part which also extends beyond the blades to define with the disc extension a deceleration zone, the trailing edge of each blade is formed such that the part 18 of the blade proximate the front housing part lies downstream of the normal 20 to the fluid-flow centre line 15 the point of intersection of the trailing edge with this line. The trailing edge may be rectilinear, oufwardly concave or part convex, part concave Figs. 3, 4 and 5 respectively, (not shown).
Patent GB-1170433-A (GB)
Title: Apparatus for Generating Short-Pulse Charged-Particle Beams
IPC: G21K1/08
Filed: 1966-11-15
Abstract: 1,170,433. Pulse circuits. K. K. HITACHI SEISAKUSHO, and HITACHI DENSHI K.K. 15 Nov., 1966 [15 Nov., 1965], No. 51075/66. Heading H3P. [Also in Division G6] In a short-pulse charged particle beam generating apparatus the particle source 1 is supplied with accelerating pulses from the secondary winding of a pulse transformer 7, the control electrode 6 is supplied with similar pulses from a coaxial winding 10 on the same (or a separate) pulse transformer, the remote end of the coaxial winding being supplied with shorter-duration control pulses of opposite polarity to the accelerating pulses supplied to the control electrode 6, and arranged so that only the very short duration extremity of the control pulses are effective in allowing the charged-particle beam 2 to pass through the aperture in the accelerating electrode 5. The invention is applicable to the provision of 4ns pulses of electrons or ions in linear accelerators and may be used in the measurement of time of flight of neutrons. The coaxial cable 10 is terminated in a matching resistor 14. Power from source 11 is supplied to the chargedparticle source 1 via a double wound secondary winding 9. In Fig. 6 (not shown), separate pulse transformers are used to supply the source 1 and control electrode 6. In Fig. 4a (not shown) the short duration control pulse is generated by differentiating the output of a resistive loaded triode. Alternatively (Fig. 4b, not shown), the pulse may be derived from the cathode of a triode having its anode circuit shunted by a L.C. pulse-forming network. Expressions are given for the relative amplitude of the pulses.
Patent GB-1533265-A (GB)
Title: Position sensing apparatus and method
IPC: B23K26/04
Filed: 1975-12-15
Abstract: 1533265 Optical positioning of workpiece GENERAL ELECTRIC CO 15 Dec 1975 [19 Dec 1974] 51259/75 Heading G1A To position the surface of a workpiece 10 with respect to a given point and so determine the extent of a machining operation light from source 14 reflected by the surface is focused on to a photo-sensitive detector 24, the displacement of the focused light spot from reference point 32 on the detector surface corresponding to movement of the workpiece surface from the optical axis intersection 28. The source may be a helium/neon gas laser. The axis intersection may be initially positioned within the workpiece and a grinding wheel (44) Fig. 5 (not shown) applied until the reflected light spot is incident on point 32. Alternatively the light source may be directed along the same axis as a drilling laser beam by a movable mirror or fixed beam-splitter (62) Fig. 6 (not shown). The size of the drilled holes, which is dependent on the position of the workpiece with respect to the laser focusing lens (58), may be monitored by an image scanner (82) Figs. 7 and 8 (not shown) and any necessary corrections to the drilling laser intensity or focus offset made for subsequent holes in the workpiece. A filter (88) for ambient light rejection may be provided on the reflected light axis.
Patent GB-1337204-A (GB)
Title: Energy-dissipating bumpers for automotive vehicles
IPC: F16F9/342
Filed: 1971-11-04
Abstract: 1337204 Shock absorbers GENERAL MOTORS CORP 4 Nov 1971 [16 Nov 1970] 51281/71 Heading F2S [Also in Division B7] An energy-dissipating bumper (see Division B7) for an automotive vehicle body comprises an impact-receiving member or bumper bar 16 having an extension 18 which is fixed to an annular elastomeric mounting element 28, itself fixed within one end of a closed dashpot cylinder 24 containing fluid 32 and adapted for attachment to the vehicle body 10. On bumper bar 16 receiving an impact, extension 18 moves telescopically inwardly of the cylinder 24 against the shear resistance of the element 28 so that fluid 32 is expelled through an orifice 36, forcing out a plug 38, and the element 28 acts to elastically return the bar 16 and extension 18 to their original extended position, as shown in Fig. 2. In an alternative form, Fig. 4, the orifice 36 is replaced by an orifice 42 in end cap 34 of the extension 18, the effective size of orifice 42 being reduced as the extension 18 telescopes inwardly of the cylinder 24 by a tapered metering rod 40 affixed to end cap 26 of the cylinder 24. The orifice 42 communicates with a chamber 44 within the extension 18, the chamber being bounded by a piston 46 acted on by a compression spring 48 to dissipate energy as fluid is forced into chamber 44.
Patent GB-1416438-A (GB)
Title: Sectional structural members
IPC: E02D5/28
Filed: 1972-11-08
Abstract: 1416438 Piles; metal structural members METALLURGIQUE ET MINIERE DE RODANGE-ATHUS SA 8 Nov 1972 [28 Jan 1972] 51550/72 Headings E1H and E1K A metal structural member 1, e.g. for forming a hollow pile, has in cross-section, at least two arms 3 terminating in end portions 4 of polygonal shape defining a plurality of surfaces 5, 6, 7 which may be abutted against the corresponding surfaces of further identical members to form closed structures comprising, in the example shown, two, three, Fig. 3 (not shown) or four, Fig. 4 (not shown) members, a welding fillet being located in the chamfers formed by the surfaces 6, 7 or a further pair of surfaces 9.
Patent GB-1390945-A (GB)
Title: Polyesters their production and their use
IPC: H01B3/42
Filed: 1972-11-09
Abstract: 1390945 Polyesters; unsaturated polyester resins BAYER AG 9 Nov 1972 [10 Nov 1971] 51770/72 Headings C3R and C3P Novel polyesters have in their chain at least 10 weight per cent of repeating units of formula in which the isopropylidene groups are linked to the ring B in the m- or p-position to each other and to the rings A and C in the m- or pposition to the ester forming -CO- radicals, and R<SP>1</SP> and R<SP>2</SP> are the same or different and are each a hydrogen, methyl, ethyl, carboxyl, or phenoxy carbonyl radical or an alkoxy radical having up to 12 carbon atoms. Examples describe the production of polyesters from (1) α,α<SP>1</SP> - (4<SP>1 </SP>- methoxy - carbonyl - phenyl) - pdiisopropylbenzene and neopentyl glycol, (2) α,α<SP>1</SP> - bis - (4 - chlorocarbonyl - phenyl) - pdiisopropylbenzend and α,α<SP>1</SP>-bis-(4-hydroxyphenyl)-p-diisopropylbenzene (3) α,α<SP>1</SP>-(4- phenoxycarbonylphenyl) - p - diisopropylbenzene condensates with trimethylol propane, ethylene glycol, 1,2-propylene glycol, 2:2-bis- (p - hydroxyethoxyphenyl) - propane, 4:4<SP>1</SP>- dihydroxydiphenyl ether, dihydroxy diphenyl, 4:4<SP>1</SP>-dihydroxydiphenyl sulphone.
Patent GB-1204020-A (GB)
Title: Improvements in and relating to electric charge amplifiers
IPC: G06G7/186
Filed: 1968-11-01
Abstract: 1,204,020. Circuit assemblies. VIBROMETER A.G. 1 Nov., 1968 [2 Nov., 1967]. No. 51949/68. Heading H1R. [Alos in Division H3] The feedback path of an electric charge amplifier contains a resistor and capacitor in parallel each being selected by a respective switch 2, 1 from respective sequences of resistors R 1 -R 10  and capacitors C 1 -C 5 , the ratio of the values of any two consecutive resistors being the reciprocal of the ratio of any two consecutive capacitors in the same switching directions, and the two switches 1, 2 being coupled by a clutch. The clutch consists of a spring-loaded pin (9, Fig. 3, not shown) in a knob 5 which operates the capacitor switch 1, the pin engaging notches (11) in a knob 6 operating the resistor switch 2; so that when knob is turned to change a capacitor C 1 -C 5  and adjust sensitivity, the knob 6 is automatically turned to select an appropriate resistor R 1 -R 10  to maintain the RC product constant. Switch 2 is operable by knob 6, independently of knob 5, to change the time constant RC; and it is possible to select any one of six sets of five consecutive resistors from the sequence R 1 -R 10  to correspond to the five capacitors C 1 -C 5 , thereby providing six time constant settings for any one of five sensitivity settings. The sensitivity is read from a scale over which a pointer 14 on knob 5 moves, and the time constant is indicated on a scale on the knob 5 visible through a window 13 in knob 6.
Patent GB-1529198-A (GB)
Title: Jewellery articles
IPC: A44C11/00
Filed: 1976-12-06
Abstract: 1529198 Chain BRACELON (BIRMING- HAM) Ltd 6 Dec 1976 [19 Dec 1975] 52038/75 Heading A3H [Also in Division B3] A chain is made of closed links 13 interconnected with one another and rigidly secured one to another at the points of contact 12.
Patent GB-1030550-A (GB)
Title: Improvements in or relating to rubber compositions
IPC: C08L95/00
Filed: 1964-12-22
Abstract: A rubber composition comprises 100 parts cis-1,4-polybutadiene, between 15 and 100 parts of asphalt and between 0.5 and 5 parts of a monocarboxylic acid chosen from straight-chain aliphatic monocarboxylic acids having 6 to 14 carbon atoms inclusive, branded chain aliphatic monocarboxylic acids having 6 to 18 carbon atoms inclusive, cycloaliphatic monocarboxylic acids having from 5 to 18 carbon atoms inclusive and aromatic monocarboxylic acids having from 7 to 18 carbon atoms inclusive. Specified acids include the preferred benzoic, octanoic and naphthenic acids.  The composition may also contain between 3 and 15 phr of an aliphatic hydrocarbon polymer of an aliphatic hydrocarbon polymer of molecular weight between 500 and 20,000, e.g. polyethylenes, polyterpenes, butadiene-styrene copolymers containing up to 25% styrene and polybutenes.  The usual vulcanization additives may be present and the composition vulcanized.
Patent GB-1066549-A (GB)
Title: Refractory bodies and compositions and methods of making the same
IPC: C04B37/00
Filed: 1964-12-22
Abstract: A refractory body comprises a primary phase containing a solid solution of Mo in ZrB2 and a secondary phase containing Si, B and C. It is made by pressing and sintering a mixture of 70-94% ZrB2, 5-20% MoSi2 and 1-10% BC.  The mixture may be pressed at up to 50,000 psi and sintered at above 2000 DEG C or may be hot pressed at more than 2000 psi and above 2000 DEG C.  In the latter case the pressure may be lowered at the same time as or before the temperature is decreased.  The material may be used for coating oxidizable surfaces, e.g. by arc-spraying or flame spraying. Surfaces coated may be ZrC, C, SiC, stainless steel, and refractory foams of ZrC, TaC, TiC, WC, NbC, SiC.
Patent GB-1466057-A (GB)
Title: Holder cards for coins or the like
IPC: G09F1/02
Filed: 1972-11-11
Abstract: 1466057 Coin holders ASSOCIATED PAPER INDUSTRIES Ltd 11 Feb 1974 [11 Nov 1972] 52186/72 Heading A4T [Also in Division D1] A holder card for coins or the like comprises a card having at least one hole for receiving the coin, etc., the hole having a dimension slightly smaller than that of the coin to be held and the card being sufficiently resilient in its own plane to grip the coin on pressing it into the hole. The card is preferably formed of paper or cardboard impregnated with an acrylic elastomer, preferably mixed with silica gel and polyvinyl alcohol; and the card may be impregnated in two stages, with the hole(s) being cut at an intermediate stage. Pigments may also be incorporated.
Patent GB-1214397-A (GB)
Title: An improved method for continuously manufacturing reinforced plastics material board
IPC: B29C70/00
Filed: 1968-11-06
Abstract: 1,214,397. Impregnated fibrous laminates; laminating. NITTO BOSEKI CO. Ltd. 6 Nov., 1968 [8 Nov., 1967], No. 52663/68. Heading B5N. Fibre-reinforced plastics laminates are made continuously by successively applying to a strippable film 1 a layer of liquid heat-hardenable synthetic resinous material and a fibrous mat 6; passing the assembly over an upwardlycurved path 9 whilst applying pressure by a driven roller 10, by squeeze rollers 12, 13 and by parallel threads 14, each of which is attached to a fixed member 15 and terminates with its free end beyond rollers 12, 13; introducing strippable film 15 and heating at 18 to cure the resin. Film 1 may be of cellulosic plastics and the resin may be a polyester or epoxy resin solution applied by pipe 4 and doctor blade 5. The threads 14 may be flat-faced steel wires or nylon fibres, may be spaced at 10-40 mm. and may extend 30-50 cm. beyond rollers 12, 13. Mat 6 may be of chopped strand glass fibres. A plurality of laminating devices may feed uncured laminates into a single furnace 18.
Patent GB-1448268-A (GB)
Title: Cyclopentane derivatives
IPC: C07C401/00
Filed: 1973-11-13
Abstract: 1448268 Prostaglandin intermediates MAY & BAKER Ltd 11 Nov 1974 [13 Nov 1973] 52695/73 Heading C3S [Also in Division C2] Trimethylsilyl esters of acids of the Formula III wherein R<SP>1</SP> is propoxymethyl, 2-ethoxyethyl and 3-methoxypropyl and the symbols R<SP>6</SP> together form an ethylene linkage, are prepared by reacting the free acids with hexamethyldisilazone and trimethylchlorosilane.
Patent GB-1454829-A (GB)
Title: Socket-mounted fire sensors
IPC: G08B17/113
Filed: 1974-12-06
Abstract: 1454829 Stud and socket fastenings CERBERUS AG 6 Dec 1974 [7 Dec 1973] 52879/74 Heading E2B [Also in Division H2] A fire-sensor comprises a socket element A for mounting on a support, and a sensor element B including fire sensing and detection means, removably securable to A, and a movable locking member 5 located in one of the elements to co-operate with a recess 8 in the other, and prevent disengagement of the elements upon engagement of the locking member in the recess. The socket and sensor element may have bayonet type engagement and the locking member may be a plug with or without a spring, a permanent magnet or a spring-loaded wedge-shaped catch. The direction of movement of the locking element or catch is at right angles to the direction of movement of the sensor element for engagement. A removal tool C consists of a sleeve 9 which can be pushed over element B to lift the locking member 5 from the slot 8, the inner layer 10 of rubber or foam resiliently clamping the sensor B so that the latter can be rotated for disengagement.
Patent GB-1166818-A (GB)
Title: N-Hydroxyamides of Substituted Phenylacetic Acids, Salts thereof and their preparation
IPC: C07C47/575
Filed: 1966-11-25
Abstract: 1,166,818. N-Hydroxyamides of phenylacetic acids. MADAN A.G. 25 Nov., 1966 [9 Dec., 1965; 7 Nov., 1966], No. 52909/66. Heading C2C. The invention comprises compounds of formula wherein R 1  is alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl or arylcycloalkyl, R 4  and R 5  are each hydrogen, halo, alkyl, cycloalkyl, dialkylaminoalkyl, or pyridyl, one of R 4  and R 5  alternatively being hydroxyl when the other is hydrogen, and R 2  and R 3  are either two halogens, or one halogen and one hydrogen, or one halogen and one alkyl, or, when at least one of R 4  and R 5  is not hydrogen, two hydrogens; and the alkali metal, alkaline earth metal and ammonium salts thereof. The compounds of Formula I are prepared by reacting a compound of formula (wherein R 6  is alkyl) with hydroxylamine. The alkali metal and ammonium salts are prepared by direct salification of the compounds of Formula I, or the alkali metal salts are obtained by performing the reaction of a compound of Formula II with hydroxylamine in the presence of an alkali metal base. The alkaline earth metal salts are obtained from the alkali metal or ammonium salts by reaction with an alkaline earth metal salt. Ethyl 3,5 - dibromo - 4 - butoxyphenylacetate is prepared from 3,5-dibromo-4-hydroxyacetophenone via 3,5 - dibromo - 4 - hutoxyacetophenone, 3,5 - dibromo - 4 - butoxyphenyl thioacetomorpholide and 3,5 - dibromo - 4 - butozyphenylacetic acid. Ethyl 3-(chloro or fluoro)-4- butoxyphenylacetate is prepared from o-(chloro or fluoro)-phenol via o-(chloro or fluoro)-butoxybenzene, 3 - (chloro or fluoro) - 4 - butoxyacetophenone and 3 - (chloro or fluoro) - 4- butoxyphenylacetic acid. Ethyl 3 - chloro - 4- allyloxyphenylacetate is prepared from ochlorophenol via o - allyloxy - chlorobenzene, 2- chloro - 4 - chloromethyl - allyloxybenzene and 4- allyloxy - 3 - chlorobenzyl cyanide. Ethyl α - (p - butoxyphenyl) - propionate is prepared from p - butoxy - benzyl cyanide via α - (pbutoxyphenyl) - propionitrile. Ethyl α - (pbutoxyphenyl) - butyrate is prepared from pbutoxy - benzyl cyanide via α - (p - butoxyphenyl) - butyronitrile. Methyl p - butoxymandelate is prepared from p-hydroxybenzaldehyde via p-butoxybenzaldehyde, the cyanohydrin thereof, and the iminoester hydrochloride obtained from the cyanohydrin by reaction with methanol and hydrogen chloride. Compounds of Formula I and their alkali metal, alkaline earth metal and ammonium salts are stated to possess anti-inflammatory, analgesic, antipyretic and antispasmodic activities and may be made up with suitable carriers into pharmaceutical compositions.
Patent GB-1503637-A (GB)
Title: Process for the preparation of pigments of dispersibility and their use
IPC: C09B69/10
Filed: 1976-12-20
Abstract: Organic pigments grafted with organic polymers are prepared, the pigment being grafted with at least one organic vinyl monomer in an aqueous phase in the presence of an anionic or cationic emulsifier and a reducing agent. The organic pigments obtained may be used for pigmenting organic plastics.
Patent GB-1467460-A (GB)
Title: Process for preparing salts of aromatic amines
IPC: C07C215/40
Filed: 1974-12-09
Abstract: 1467460 Para-phenylene diamine salts SUMITOMO CHEMICAL CO Ltd 9 Dec 1974 [10 Dee 1973] 53210/74 Heading C2C Salts of p-phenylene diamines of the formula wherein R 1  is hydrogen or C 1  to C 6  alkyl, R 2  is C 1  to C 6  alkyl, #-hydroxyethyl, #-alkoxyethyl or #-alkylsulphonylaminoethyl, and the benzene nucleus A may be further substituted by C 1  to C 4  alkyl, C 1  to C 4  alkoxy or halogen, are prepared in the form of crystals having a particle size of more than 0À5 mm. mean diameter by reacting from 1À00 to 1À3 equivalents of an inorganic acid per equivalent of the p-phenylenediamine with said p-phenylene diamine in an alcohol or a mixed solvent of an alcohol and water at 30‹ to 100‹ C., stirring the mixture and recovering the required product.
Patent GB-1459194-A (GB)
Title: Construction form support member
IPC: E04G17/18
Filed: 1973-12-08
Abstract: 1459194 Supporting floor shuttering COMPOSITE CONSTRUCTION SYSTEMS INC 8 Dec 1973 [8 Dec 1972] 53232/73 Heading E1S An elongate floor shuttering support member 15 which is telescopically adjustable in length has a pin 19 at each end which in use is engaged in a recess 21 or hole in a structural beam. End tubes 91 carry pivotally mounted end blocks 95 which are forced down by a screw 99 operated by a lever 101, thereby in turn forcing the end tubes 91 up and wedging them against central tube 90. This allows dropping of the support member 15 from the floor shuttering after the concrete has set.