baber/WOPTO huggingface dataset:
Patent GB-1205001-A (GB)
Title: Photographic flashlamp unit
IPC: G03B15/04
Filed: 1968-08-23
Abstract: 1,205,001. Flash-cubes. SYLVANIA ELECTRIC PRODUCTS Inc. Aug.23, 1968 [Aug.23, 1967], No.40502/68. Headings G2A and G2L. A flashcube comprises a number of percussively ignitable flash-bulbs, the primer cups 10 of which extend through respective apertures in the base 22 of the cube and are supported laterally by a back-up ring 30 on the base. The cube has a centre post 24 adapted to engage in a suitable socket on a camera, the latter being provided with a locking finger 26 adapted to co-operate with a groove 12 in the primer cup of the bulb which is to be fired to secure this bulb in position.
Patent GB-1495307-A (GB)
Title: Etching processes
IPC: C23F1/20
Filed: 1976-07-30
Abstract: 1495307 Etching process MARCONI CO Ltd 30 July 1976 [4 Oct 1975] 40694/75 Heading B6J An aluminium, cadmium or zinc layer, provided as an overlay upon a substrate (such as glass) bearing a conductive pattern of metal oxide (such as tin or indium oxides), is etched with an acid etchant to which an oxidizing agent has been added to suppress the etchant effect upon said metal oxide of nascent hydrogen released during the etching of the metal. Preferably solutions of sulphuric acid are used to which chromic acid, potassium permanganate or ceric sulphate have been added.
Patent GB-1463192-A (GB)
Title: Horn speaker
IPC: C21D1/48
Filed: 1974-01-16
Abstract: 1463192 Horn loudspeakers ONKYO KK 16 Jan 1974 [17 Jan 1973] 40730/76 Divided out of 1463191 Headings H4J and H4X The horn of a horn speaker (shown in simplified form in Fig. 1, having two sound passages) has for the or each sound passage a substantially straight principal axis extending therethrough. The or each passage has an inlet and a mouth parallel to one another. The cross-sectional area of the or each sound passage taken along planes perpendicular to its principal axis increases at a substantially constant rate of area expansion from the inlet plane to the mouth plane in the direction of the principal axis. The or each passage is defined by a plurality of walls 91, 92, 94, 95 (Fig. 3). Walls 91, 92 are curved and parallel to each other when considered in successive cross-sections apart from their terminations at the inlet and mouth planes (which as described are rectangular) and define between them a virtual curved surface. The centre line 93a (Fig. 2a) of this virtual curved surface substantially coincides with the substantially straight principal axis. The most direct paths on the virtual curved surface from the centre of the inlet plane to points where the virtual curved surface meets the mouth plane are virtual curved lines 93b, 93c &c. (Figs. 2b, 2c) which increase progressively in effective length as the distance of the points from the centre line increases. The other walls 94, 95 defining the or each sound passage are straight and parallel lines when considered in successive cross-sections. The curvature of the virtual curved lines progressively increase as their distance from the centre line increases. The curvature of the two walls when considered in cross-section is at a maximum at substantially the mid-portion of its principal axis (Fig. 3b). The horn may have two sound passages symmetrically disposed loudspeakers using such horns have a wide range of directivity and good low frequency reproduction.
Patent GB-1369505-A (GB)
Title: Apparatus for the detection of marks applied to strip material
IPC: G06K7/10
Filed: 1971-09-06
Abstract: 1369505 Photo-electric control arrangement AGFA-GEVAERT A G 6 Sept 1971 [5 Sept 1970 (2)] 41380/71 Heading G1A An apparatus for detecting marks applied to a running strip such as a film for cutting purposes comprises means for guiding laterally the strip, devices for scanning a plurality of areas situated adjacent to one another across the strip, each of which devices includes means for illuminating a different said area and a photo-electric transducer arranged to receive light reflected from that area, and means for emitting a signal at a single common output when a threshold output is exceeded by the output from one of the transducers. The width of the areas is chosen to be less than the width of a mark. The light from a lamp 6a, Fig.2 the filament of which is located at one of the foci of an elliptically curved reflecting surface 7 is directed through a window 10 in a support plate 5 on to the marked surface of strip 2 at a point which is the other focus of the ellipse, and diffusely reflected light from the strip passes through bore 8 to photovoltaic cell 9. The cells 9, Fig.4, are connected in common to a transistor amplifier 20 and an operational differential amplifier 34 via impedance transducers 17, 18, the threshold value being applied by potentiometer 34. The output from cell 9 due to lamp 6 is maintained constant in the absence of a mark by transistors 24, 27, and a change in the light intensity due to the presence of a mark is retarded by capacitor 26. The time related average value of the signals from the various transducers is obtained by capacitor 30 across the emitter of transistor 20. Diodes 19 isolate the transducers by permitting cut off of the others by the largest amplitude signal.
Patent GB-1395307-A (GB)
Title: Ferrites
IPC: C04B35/26
Filed: 1973-09-03
Abstract: 1395307 Lithium ferrites AMPEX CORP 3 Sept 1973 [14 Sept 1972] 41389/73 Heading C1J A ferrite has the formula wherein R is one or more ferrite-forming metals other than Li, Nb and Fe, a and c are each greater than zero, b is zero or greater than zero a + b + c + x = 3, a + n6 + 5x + 3c = 8 and x is from 0À005 to 0À015. Examples 1-5 describe the preparation of Li 0À51 Nb 0À01 Fe 2À48 O 4 , Li 0À48 Ni 0À06 Nb 0À01 Fe 2À45 O 4À00 , Li 0À41 Co 0À02 Ni 0À06 - Zn 0À12 Nb 0À01 Fe 2À38 O 4À00 , Li 0À38 Co 0À025 Ni 0À075 Zn 0À16 - Nb 0À01 Fe 2À35 O 4À00 , and Li 0À31 Co 0À03 Ni 0À07 Zn 0À27 - Cu 0À03 Nb 0À01 Fe 2À28 O 4À00 . The ferrites may be used in memory cores.
Patent GB-1085244-A (GB)
Title: Improved method and apparatus for treating plastic materials to improve the adehsion of printing inks thereto
IPC: B29C59/10
Filed: 1964-10-13
Abstract: 1,085,244. Discharge apparatus for treating plastics materials. A. V. EISBY. Oct. 13, 1964, No. 41714/64. Heading H1X. Plastics foil 8 passing over a counter electrode 27 is treated to improve the adhesion of printing inks by subjection to voltages having a frequency of the order of 20-50 kc./s. applied to electrode(s) 26, the voltages having a waveform (Fig. 4) which rises steeply to a point a at about 25 kv. when a spark occurs, the voltage then falling to a value about one quarter of the sparking voltage and maintaining a current of the order of 0À5 amp. to the foil for the remainder of the half-cycle. The negative halfcycle b may be limited to -the form c in known manner. The electrode 26 comprises layers of steel or other metal 1 mm. thick, supported at a spacing of 0À5 to 1 mm. from the foil surface. Roller 27 has a tubular insulating covering 28 provided with a metallic layer 29 covered by an inner layer 30 of insulating material containing electrically conductive pulverous material and an outer layer 31 of insulating material, e.g. ceramic, having a higher dielectric constant (8 to 30) than the foil 8, and covered by a lacquer or oil coating 32. The capacitances of the various layers are such that the bulk of the power dissipation occurs in the foil. Two electrodes 26 mounted on opposite sides of the roller 27 may be connected to the output winding of an impulse transformer (Fig. 1, not shown) to form a resonant circuit with a Q greater than 50. The transformer has an open ferrite core and a non-tuned primary fed through power amplifiers from a controllable frequency generator. Both sides of the foil may be treated by employing, two roller electrodes (Fig. 5, not shown). Alternative electrode constructions (Figs. 6 and 7, not shown) enable partly closed plastics bottles to be treated. Two electrodes may be mounted on a carriage (Fig. 8, not shown) provided with supporting rollers and a handle for manual movement along more rigid flat foils.
Patent GB-1192141-A (GB)
Title: New Amines and process for their manufacture
IPC: C07D213/82
Filed: 1968-09-03
Abstract: 1,192,141. Pyridine derivatives. CIBA Ltd. 3 Sept., 1968 [8 Sept., 1967; 19 July, 1968], No. 41846/68. Heading C2C. Novel compounds of formula in which R 1  and R 2  are aryl and R 3  is pyridyl (the aryl and pyridyl radicals may optionally be substituted) and their acid addition salts are prepared by reducing (a) a compound of formula or (b) a compound of formula wherein one of X 1 , X 2  and X 3  is =O and the other two are each two H atoms and converting the products of (a) and (b) into their acid addition salts if desired. Intermediates isolated are compounds of formula prepared by reacting R 1 N(R 2 )H with acrylonitrile, compounds of formula prepared by reduction of the above nitriles (III) and compounds of Formula (II) prepared by reacting IV with R 3 -CHO. Pharmaceutical compositions comprise a compound (I) or one of its acid addition salts together with a suitable excipient, are administered topically, enterally or parenterally and have anti-inflammatory activity.
Patent GB-876585-A (GB)
Title: Improvements in and relating to rubber
IPC: C08L21/00
Filed: 1959-12-11
Abstract: A rubber vulcanizate comprises a major proportion of a rubber and a minor proportion of a curing agent comprising an interpolymer of sulphur and an unsaturated organic compound containing at least one carbon-to-carbon double bond.  Specified rubbers are natural rubber, balata and gutta percha, polybutadiene, polyisoprene, poly-2, 3-dimethylbutadiene polychloroprene, copolymers and terpolymers of 1, 3-dienes with isobutylene, styrene, acrylonitrile, methyl, ethyl and butyl acrylate, methyl methacrylate, 2-vinyl pyridine and 4-vinyl pyridine, e.g. 35-butadiene-35 styrene-30 acrylonitrile, 67-butadiene-33 acrylonitrile and 97 isobutylene-3 isoprene. Polyester-urethanes, polyetherurethanes and polyesteramide urethanes may also be used.  Specified organic unsaturated compounds are styrene, alpha-methyl styrene, divinyl benzene, isobutylene, di-isobutylene, ethylene, propylene, butadiene, isoprene, vinyl acetate, vinyl chloride, methyl vinyl ether and numerous others. Sulphur or the usual sulphurizing agents, vulcanization additives and aids may be present and the vulcanizate may be cured.
Patent GB-958469-A (GB)
Title: Improvements relating to coatings for electrical conductors
Inventor: WEISS PHILIP
IPC: C08G63/137
Filed: 1962-11-08
Abstract: A bath liquid for coating electrical conductors comprises a solution of (a) a polyester having an acid number below 2 which is the reaction product of an aliphatic dibasic acid and an aliphatic trihydric alcohol, and (b) pyromellitic dianhydride, hexahydrophthalic anhydride, or an acid or ester thereof. Wires are dipped in the solution and then heated to effect cross-linking and cure the coating. In examples wires are coated with cresol solutions containing polyesters prepared from adipic acid and trimethylolpropane, and pyromellitic dianhydride and hexahydrophthalic anhydride. Other materials mentioned are succinic acid, sebacic acid, glycerol, trimethylolethane, ethylene glycol, pentane diol, neopentyl glycol, bis-(2-hydroxy-ethyl) ether of hydroquinone, 1, 4-hydroxy-methyl benzene, 2, 5-(hydroxy methyl)-p-xylene, 1,4-dimethanol cyclohexane, bis-(2-hydroxy-ethyl) ester of isophthalic acid, propylene glycol, butane glycol and hexane glycol.
Patent GB-1245947-A (GB)
Title: Method of making gelatin-containing compositions
Inventor: WHITELEY THOMAS EDWARD
IPC: G03C1/09
Filed: 1968-09-05
Abstract: 1,245,947. Coating. EASTMAN KODAK CO. 5 Sept., 1968 [8 Sept., 1967], No. 42325/ 68. Heading B2E. [Also in Divisions C3 and G2] Substrates are coated with a composition made by mixing an aqueous solution of gelatin with a latex polymer containing a watersolubilizing group and adding an inorganic polyvalent metal salt. In one embodiment, the substrate is coated with a layer of mixture containing the gelatin and latex polymer and the polyvalent metal salt is incorporated by overcoating the layer with a composition containing the salt. In examples, (1) cellulose acetate is coated with a composition containing gelatin, ethyl acrylate/acrylic acid copolymer, Zn(NO 3 ) 2  and saporin (the Zn(NO 3 ) 2  may be replaced by CdCl 2 , Cd(NO 2 ) 3 , Co(NO 3 ) 3 , MnCl 2 , MnSO 4 , ZnCl 2 , Bi(NO 3 ) 2  SH 2 O ,  ammonium, chlorothodite or dipotassium hexachloroplatinate); (2) cellulose acetate is coated with a similar composition containing n-butyl acrylate/acrylic acid copolymer, butyl acrylate/ sulphopropyl acrylate copolymer or ethyl acrylate/sulphopropyl acrylate copolymer and CdCl 2  and (3) polyethylene terephthalate is coated with a similar composition containing n-butyl acrylate/acrylic acid copolymer and Zn(NO 3 ) 2 .
Patent GB-1159648-A (GB)
Title: Shaft Bearings for Counter-Rotating Propeller Shafts
IPC: F16C17/24
Filed: 1967-09-18
Abstract: 1,159,648. Securing bearings in shafts; bearings. STAL-LAVAL TURBIN A.B. 18 Sept., 1967 [16 Nov., 1966], No. 42328/67. Headings F2A and F2U. A bearing between contra-rotating shafts is so mounted in one of the shafts as to accommodate changes in radial dimensions of the bearing due, for example, to frictional heating. As shown an inner shaft 1 is journalled in a bearing 3 having axially resilient flanges 4, 5 having conical faces 6, 7 frictionally engaging corresponding faces provided in the bore of the outer shaft 2. The flanges 4, 5 are biased together by a number of circumferentially spaced spring washers 11 associated with bolts 13; spacer sleeves 12 limit the minimum distance between the flanges. The heat generated by shaft rotation would cause an increase in the radial dimension of the bearing but this is prevented until the stresses in the bearing reach a level corresponding to the prestressing of the springs, whereafter flexing of the flanges and sliding at the frictionally engaging surfaces occurs. The bearing will remain centred in shaft 2. In a modification the flanges are provided on the shaft 2.
Patent GB-1212299-A (GB)
Title: Nuclear reactor containment system
IPC: G21C9/012
Filed: 1969-08-27
Abstract: 1,212,299. Reactors. WESTINGHOUSE ELECTRIC CORP. 27 Aug., 1969 [23 Sept., 1968], No. 42705/69. Heading G6C. In a pressurized water nuclear power plant, the containment system immerses the reactor in coolant in the event of a failure of the primary coolant system. The steam generating loops, 22, are heated by the core, 13, inside the pressure vessel, 10. An accident in a loop produces a pressure drop in 10 and the contents of accumulator tank, 30, connected to the loop, are directed into 10 automatically. Additionally, water from a refuelling storage tank may be directed into the loops 22 and through the spray heads, 50, within the containment structure, 31. In the event of a rupture of vessel, 10, coolant leaves the reactor and enters the clay well, 11. To prevent core melt down a further supply of borated water is automatically admitted into 11 from storage tanks, 58. During an accident, water collects in the sump 64 and is pumped into the stand-pipe, 66, so as to flood the well, 11. In an alternative form, the tanks 58 are not used and the borated water is stored in the lower part of well 11.
Patent GB-1195085-A (GB)
Title: Improvements in or relating to a Cutting Tool.
Inventor: KOHLER ALFRED
IPC: B23C5/22
Filed: 1967-09-20
Abstract: 1,195,085. Milling cutters. A. KOHLER. 20 Sept., 1967 [22 Sept., 1966], No. 42819/67. Heading B3K. A milling cutter has a plurality of interchangeable cutting teeth arranged in an annular or helical series around the rim of a body member, the teeth being clamped on opposed flank faces and held so that the foot of each tooth is clear of the adjacent peripheral part of the body member. The cutter may have a single annular series of teeth (Figs. 1, 2, not shown) or a series of transverse rows of teeth 7 which may be aligned annularly by annular collars or helically by means of a helical spacing member 8. Alternatively a transverse row of teeth may be formed in a cutting plate 11 and the cutting plates arranged in series around the body. The clamping rings 9, 10 or 12 . . . 15 are threaded on the body and preferably, as shown, clamp the teeth on a dovetail shaped root portion. The teeth may abut each other in the peripheral direction or be spaced by suitable spacer members; alternatively spaced recesses for the teeth may be provided in the cutter body. Resilient rings 16 may be interposed between the bases of the teeth and the cutter body.
Patent GB-1361728-A (GB)
Title: Apparatus for controlling the temperature of the intake air of an internal combustion engine
IPC: F02M31/06
Filed: 1972-09-18
Abstract: 1361728 Heating intake air FILTERWERK MANN & HUMMEL GmbH 18 Sept 1972 [21 Sept 1971] 43128/72 Headings G3P PIE P3 P9A3 P9X and P24KX In I.C. engine intake air temperature control apparatus a control valve 14, Fig. 1 in an air filter intake pipe co-operates with a pneumatic servomotor 17 to close a hot air passage 13 and open a cold air passage 12, the control space 19 being connected through pipes 21, 22 and a metering orifice 31, Fig. 2 (not shown), with the intake manifold 2, a ventilating valve 32 being activated in dependence on ambient temperature through a bi-metallic thermostat 37, a non-return valve, operable by a second bi-metallic thermostat above a predetermined temperature, between the servomotor and the ventilating valve, the air from the ventilating valve to the servomotor being shut off below the predetermined temperature.
Patent GB-890669-A (GB)
Title: Vehicle cleaning equipment
Inventor: JENNINGS GEORGE ARTHUR NEVILLE
IPC: B60S3/06
Filed: 1959-12-18
Abstract: 890,669. Vehicle cleaning equipment. SPARKBROOK DEVELOPMENTS Ltd. Dec. 19, 1960 [Dec. 18, 1959], No. 43185/59. Class 138 (1). Vehicle cleaning equipment comprises a vertical or near vertical rotary brush 9 carried in bearings on arms 6, 7 pivoting about an axis 5, slightly inclined to the vertical, so that when a vehicle is moved appropriately past the equipment the brush and arms tend to swing towards the side of the vehicle, and the movement is controlled by a spring assembly 16, so that within an appreciable range of movement of the brush the latter applies a substantially constant force against the side of the vehicle. The brushing unit comprises a platform 1 mounted on wheels 2 with a superstructure 3 supporting a spindle 5 which carries arms 6, 7, these, in turn, supporting a rotatable shaft 8 of a brush 9. An electric motor 10 drives the bush 9 through belts 11, 12 and the vehicle may be sprayed with water from nozzles in pipes 14, 15. A pair of brushing units is arranged so that the vehicle is cleaned as it is driven between them. In each brushing unit a spring assembly 16 is connected between the arms 6 and the superstructure 3 and comprises two opposed compression springs which are adjusted so that they assist the tendency of the brush to swing towards the vehicle when the arms lie in a vertical plane containing the axis 5. and oppose this tendency when the arms swing away from this plane. The angular outward movement of the arms 6 7 is limited by an adjustable stop 23.
Patent GB-978282-A (GB)
Title: Improvements relating to disc-seal electron tubes
IPC: H01J19/46
Filed: 1961-12-04
Abstract: 978,282. Discharge tubes. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 4, 1961 [Dec. 7, 1960], No.43282/61. Heading H1D. A high - frequency disc-seal electron tube is assembled from prefabricated grid and cathode sub-assemblies, rod-shaped spacers 21, Fig. 4, being provided within the tube between the grid ring 7 and a reference surface on the cathode sub-assembly to determine the grid-cathode spacing. An annular gap between grid ring 7 and the adjacent wall 24 of the cathode sub-assembly is sealed by a soldering operation. As shown, metal or ceramic spacers 21 are secured to grid ring 7 and abut against an annular disc, Fig. 7, sealed into the wall of the cathode space, or against a ceramic base-plate 15, Fig. 2, or against a ledge formed in wall 24, Fig. 4. Alternatively, the spacers 21 may be secured to the cathode reference surface and abut against the grid ring. The wall 24 is grooved to accommodate the solder 30 and is metallized for sealing to grid ring 7 or wall 32, Fig. 7. Wall 24 may be recessed at 38 to accommodate the adjacent grid-assembly wall. An anode of further grids may be similarly located with reference to grid 4 or one or more other reference surfaces by use of spacers which may project through adjacent grids.
Patent GB-979084-A (GB)
Title: Improvements in or relating to the prevention of discolouration in sodium chloride
IPC: B01J2/30
Filed: 1962-11-16
Abstract: Blue coloration of sodium chloride which has been treated with ferrocyanide or ferricyanide is prevented by the addition of magnesium or calcium hydroxides, carbonates or silicates, or mixtures thereof.  The latter compounds may be added before, simultaneously with, or after the alkali metal ferrocyanide or ferricyanide treatment; CO2 may be blown through while blending with hydroxides. Al(OH)3 may also be used in addition to the above calcium and magnesium compounds.  After treatment, there is no coloration, even after contact with iron over long periods, e.g. 3 months.  In examples, 20 mg. potassium ferrocyanide and 80-260 mg. coloration preventing substance are added per kg. salt.
Patent GB-1501318-A (GB)
Title: Method of producing a bactericidal active monochlorotriazine dye
IPC: A01N43/66
Filed: 1976-10-20
Abstract: 1501318 Preparation of bactericidal monochlorotriazine dyes NI INST PO PERERA ISKUSSTVEN I SINTETICHE VOLOKON and INST KHIM AKAD NAUK TADZHIX SSR 20 Oct 1976 43500/76 Heading C4P Bactericidal active monochlorotriazine dyes are prepared by reacting a dichlorotriazine dye with a bactericidal compound containing one or more hydroxyl or amino groups at 20-40‹ C. in an aqueous, organic, or aqueous-organic medium whereby one chlorine atom in the triazine ring is replaced by the bactericidal compound. Preferred bactericidal compounds include 2,2' - hydroxy - 3,3',5,5',6,6' - hexachloro - diphenylmethane, leromycetin, the sodium salts of p-aminobenzenesulphamide or sulphacetamide. The products may be salted out from aqueous medium or reprecipitated from a dimethylformamide reaction medium. The dyes are applied to stockings, socks, shoe cloth, filters and medical personnel clothing.