baber/WOPTO huggingface dataset:
Patent GB-365806-A (GB)
Title: Improvements in or relating to illuminating apparatus for photographic and other purposes
IPC: G03B15/06
Filed: 1931-01-30
Abstract: 365,806. Light reflected by troughshaped reflectors. BOARDMAN, R. V., 1, Beverley Road; East Ham, London. Jan. 30, 1931, No. 3096. [Classes 75 (iii) and 75 (iv).] Supporting.-Apparatus for illuminating a photographic studio, shop window or the like comprises a group of trough-shaped reflectors each containing one or more lamps and pivotally connected together at or close to their longer front edges so as to adjust the relative angular positions of their front openings that they present a concave or convex surface to an object being illuminated, means being provided at or in close proximity to their front edges for supporting and/or retaining the reflectors in their desired angular positions. The lamps of one reflector may be of greater intensity than those of an adjacent reflector, mica or other heat-resisting partitions may be arranged transversely between the lamps, and the reflectors may be formed with ventilation apertures. In the form shown in Fig. 1, two metal reflectors 11, 12 with white inner surfaces. are suspended from a roller or overhead bar 17 by means of chains 18 and are connected by pivot pins 13. A stay 23 pivoted to the reflector 11 is connected by a pin-and-slot 25 with the reflector 12 and a thumb-nut 26 is provided for maintaining the desired angular relationship. Two reflector groups 91, 92, Fig. 5, may be pivotally connected end to end by ball-andsocket or other joints 93, 94. Fig. 7 shows two reflectors 100, 101 pivoted at 103, 104 to a common vertical spindle 102 carried by or formed as a downward extension of a horizontal arm 105 the lower surface of which is notched to engage a cross-pin 107 on a part 108 rotatably suspended from a carriage 109 having wheels 110 running on a rail 111. The pivots 103, 104 may be provided with spring washers' or other frictional means. In other modifications described and illustrated in the Specification, the reflectors are carried by U-shaped frames which are provided with pulleys and adjusting cords or wires and supported by an adjustable standard or suspended from an overhead rail, or they may be suspended solely by means of pulleys and adjusting cords or wires.
Patent GB-1240402-A (GB)
Title: Process for manufacture of laminated sections
IPC: B31C1/00
Filed: 1969-01-20
Abstract: 1,240,402. Laminated packages. SOC. ANON. SEPROSY, SOC. EUROPEENNE POUR LA TRANSFORMATION DE PRODUITS DE SYNTHESE. 20 Jan., 1969 [24 Jan., 1968], No. 3104/69. Heading B5N. [Also in Divisions B8 and F2] Laminated sections are made by winding a layer of pliable sheet material 5 e.g. paper or fabric and a plastics film 3 onto a former 1, transferring the multilayered member to a separate enclosure and heating to effect welding between the layers. Preferably the first and last few turns on the former 1 are of the plastics material 3 in order to yield a section impervious to liquids. To avoid unwinding of the section before the welding glue may be applied to the final layer. A label or other printed matter may be sealed under the outer plastic layer(s). A packaging container may be made by fitting the ends of the section with a top and/or bottom of a similar laminated material by force fitting, stapling or crimping and then heating to the fusion temperature of the plastics film. The plastics material is preferably polyethylene or polypropylene.
Patent GB-1169584-A (GB)
Title: Stabilized Chlorofluoroalkane Composition
IPC: C07C17/42
Filed: 1967-01-20
Abstract: 1,169,584. Stabilized chlorofluoroalkanes. DAIKIN KOGYO K.K. 20 Jan., 1967 [21 Jan., 1966 ; 3 June, 1966], No. 3105/67. Heading C2C. [Also in Divisions C4 and C5] Stabilized chlorofluoroalkane compositions comprise CCl 3 F, C 2 Cl 3 F 3  or C 2 Cl 4 F 2  and 0À1 to 5% by weight of ethylene oxide, propylene oxide, butadiene monoepoxide or isoprene 1,2- epoxide. The compositions may additionally contain 0À01 to 0À1% by weight of nitromethane when the content of epoxide is 0À1 to 3À0% by weight.
Patent GB-868566-A (GB)
Title: Cracking of olefins
IPC: C07C4/06
Filed: 1960-01-29
Abstract: Olefins are cracked in the presence of bromine to give mixtures of either a diolefin and a paraffin or two new olefins; the cracking occurs at a position beta to the double bond.  A diluent may be present, e.g. steam, carbon dioxide, nitrogen, hydrogen paraffins or C2-C4 olefins in amounts of 0,5-15 mols per mol of olefin.  Bromine or a bromine producing compound, e.g. ethyl bromide, 2-bromopropene, n-butyl bromide, n-propyl bromide, a -bromotoluene, bromobenzene, bromochloromethane, 1,2-dibromoethane, hydrogen bromide or ammonium bromide, is added in an amount to provide 0,5-50% mol based on the olefin and may be introduced dissolved in the olefin or water when steam is used as the diluent.  Temperature may be 300-1000 DEG C., pressure 10 mm. Hg to 500 p.s.i.g., and cracking times of 0,001-3 seconds corresponding to GHSV of 3,600,000-1,200.  The production of isoprene from 2- and 3-methylpentene-2 is exemplified and lists of materials are given for the production respectively of 2-, 3- and 4-methylpentadiene-1,3, 2,3-dimethylbutadiene-1,3, 2-ethylbutadiene-1,3, butadiene, isoprene, piperylenes, propylene, isobutylene, butene-1 and -2, 2-and 3-methylbutene-1 and 2-methylbutene-2, pentene-1 or 2, and 2,3-dimethylbutene-1 or -2.
Patent GB-858378-A (GB)
Title: Method of removing iron impurities from aluminium surface
IPC: C23F1/44
Filed: 1959-01-30
Abstract: A solution for the removal of iron impurities from aluminium or aluminium alloy surfaces contains a soluble citrate ion together with either a soluble nitrate ion or a soluble sulphite ion, the pH value of the solution being below 2.75 in the former case, or below 7.0 in the latter.  The surfaces may be treated by immersion or by spraying, and the solutions may be used at ambient or elevated temperatures.
Patent GB-598181-A (GB)
Title: A process for the coating of metal powders
IPC: C23C10/08
Filed: 1945-02-12
Abstract: In a method of coating metallic powders with another metal having a melting point above 500 DEG  C., the metal powder, which is not more electro-positive than aluminium, is heated in the presence of the vapour of a halide, preferably the chloride, of the coating metal. The halide of the coating metal may be produced by heating it in the presence of ammonium chloride, a hydrogen halide, preferably hydrogen chloride, a gaseous organic halide or the vapour of a normally liquid or solid organic halide and an oxidizing gas which does not react with the metal powder except by oxidation, carburization or decarburization.  The coating metal may be chromium, molybdenum, tungsten, titanium, zirconium, niobium, tantalum, manganese, aluminium, cerium or silicon and the coated powders may be cobalt, nickel, iron, steel, copper, tungsten, molybdenum, aluminium, tungsten carbide or molybdenum carbide.  The temperature of the treatment is between 400-1400 DEG  C.  Specification 577,504 and U.S.A.  Specifications 1,853,369 and 1,992,549 are referred to.
Patent GB-882431-A (GB)
Title: Improvements in or relating to control devices operable by radiated electromagnetic signals
IPC: E05F15/20
Filed: 1959-02-02
Abstract: 882,431. Inductive control I.F. apparatus. GENERAL MOTORS CORPORATION. Feb. 2, 1959 [Feb. 14, 1958], No. 3596/59. Addition to 843,511. Class 40(5). In a radio frequency control system and modification of that described in the parent Specification wherein a relay controls the power supplied to an apparatus in response to an actuating and a restraining voltage of opposite polarity derived respectively from an unmodulated operative signal and an unmodulated interfering signal. In the embodiment described a radio signal from a car is used to control a motor opening garage doors. A receiver comprises tuned R.F. stages T1, T2 and a detector T4, and an aerial coil 28. A control relay 2 is in the anode circuit of the second section of valve T4. A line 96 from transformer 16 provides A.G.C. When the received signal is unmodulated it is detected at grid 92 of T4. If the signal is modulated, it is detected on grid 92, and a series of pulses on line 112 is applied to grid 120 of T3, whence it is rectified by diode 156 to produce a negative voltage on line 162 which opposes the actuating voltage. The relay releases at the end of a signal, and is not operated by a modulated signal, e.g. in the form of noise. The amount of negative restraining voltage applied to line 162 in the presence of a modulated signal is determined by resistors 160 and 164, 110 and 168. The relay is not restrained by the instantaneous ambient noise produced by its own operation, by making the relay contol circuit insensitive for a short time period until such noise disappears, e.g. by fitting a back contact 6 on the relay 2. This, when opened, permits a capacitor 146 to charge, producing a positive pulse, applied to grid 18 of T4. This additional operating pulse maintains the valve conducting and the relay actuated.
Patent GB-324244-A (GB)
Title: An improved hand carrier for electric accumulators and the like
IPC: H01M2/10
Filed: 1929-02-04
Abstract: 324,244. Barnes, W. T. Feb. 4, 1929. Parcel and like carriers.- A carrier for electric accumulators and other articles comprises a pair of closedended frames each comprising long and short limbs bent at right-angles, the long limb b<1> of the lower frame sliding through loops formed in the short limb a<2> of the upper frame, to which is attached the handle d. The short limb b<2> of the lower frame may be kinked outwardly to prevent transverse relative movement of the frames. The device may be enclosed with an accumulator in a carton and used as a carrying means for the package.
Patent GB-621413-A (GB)
Title: Improvements in or relating to methods of manufacturing permanent magnets
IPC: H01F13/00
Filed: 1947-02-07
Abstract: 621,413. Heat treating magnets; alloys. JESSOP & SONS, Ltd., W., and OLIVER, D. A. Feb. 7, 1947, No. 3626. [Classes 72 and 82(i)] In a method of manufacturing a permanent magnet of the kind employed in electric apparatus with metal vanes or drums which need damping, formed from a magnetic alloy and having a coercive force of 200 oersteds or greater, a ring casting is heated to a temperature above the Curie point and cooled to below the Curie point at a controlled rate, during which cooling two semi-circular leakage fields are applied in such manner that the path of the magnetic flux is divided between two diametrically opposite neutral points one portion passing through each semi-circular segment of the casting. As shown, the ring casting 1 may be mounted between two elliptical pole pieces 5 disposed within coils 7 and 9 and heated to a temperature of 1200‹C. by an induction coil and then cooled, the rate of cooling being controlled and a heavy direct current passed through the coils 7 and 9 so that a magnetic field passes through the casting. When the temperature has dropped to 500‹C. the coils 7 and 9 are deenergized, the casting removed and, after cooling, a radial slot may be cut in it. The casting may be heated in any type of furnace and the poles of the electromagnet may have small posts projecting upwardly between which the casting is placed. A sheet of asbestos or other insulator may be placed between casting and pole to prevent local cooling of the casting. A suitable alloy consists of carbon .06 per cent, Ni 11.5 per cent, Al 8.0 per cent, Cu 4.0 per cent, Co 21 per cent, the balance being iron and unavoidable impurities. Specification 605,113 is referred to.
Patent GB-458059-A (GB)
Title: Improvements in station-indicators for radio receivers
IPC: H03J1/04
Filed: 1936-02-06
Abstract: 458,059. Adjusting wireless apparatus. FABBRICA ITALIANA MAGNETI MARELLI, 22, Corso Venezia, Milan, Italy. Feb. 6, 1936, No. 3687. Convention date, Feb. 6, 1935. [Class 37] A tuning indicator comprises two or more diaphragms 4, 5 adjustable by the tuning gear in opposite directions, the sets of holes 6, 7 and those 3 on an opaque map 2 being arranged so that a through aperture is produced when any one station is tuned in, or the map may be of translucent material without apertures. Illumination is effected from the rear. Instead of plate diaphragms, ribbons may be employed.
Patent GB-1455656-A (GB)
Title: Visor
IPC: F16C11/10
Filed: 1974-01-28
Abstract: 1455656 Ball-and-socket joints L BROWN 28 Jan 1974 03751/74 Heading E2F [Also in Division B7] A vehicle visor is provided with a ball-andsocket joint in which the ball is provided with first engaging means 14, 15 and the socket is provided with second engaging means 16, the first and second means releasably and resiliently engaging each other to hold the ball in a particular orientation with respect to the socket. In the embodiment shown spring-biased balls 14, 15 in the ball 2 engage in indentations 16 in the socket, but alternatively the spring-biased balls may be provided in the socket and the indentations or apertures provided in the ball (Fig. 2 not shown). In an alternative embodiment, Fig. 3 (not shown), the socket (50) is formed in a pressing (51) of spring steel, the resilient nature of the socket obviates the need for spring-biased balls. In a further alternative embodiment, Figs. 4a and 4b (not shown), the socket (72) itself is not provided with indentations or protuberances, but a plate (74) secured to the base thereof is provided with a resilient arm (80') having an indentation or protuberance.
Patent GB-1531431-A (GB)
Title: Method for the control of micro-organisms
IPC: A01N43/80
Filed: 1975-01-29
Abstract: 1531431 Control of fungi IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Jan 1976 [29 Jan 1975] 3814/75 Heading A5E A method for controlling the infection of materials by micro-organisms comprises treating the material with an N-alkyl-1, 2-benzisothiazolin-3-one in which the alkyl group contains from 1-3 carbon atoms. The preferred compound is N-methyl-1, 2 benzisothiazolin-3-one. The method is particularly effective for protecting aqueous oil emulsions, water-based paints and adhesives, and industrial water systems.
Patent GB-1083564-A (GB)
Title: Electrical sliding contact assemblies
IPC: H01R39/00
Filed: 1966-01-27
Abstract: 1,083,564. Collectors. LITTON INDUSTRIES Inc. Jan. 27, 1966 [Feb. 24, 1965], No. 3818/66. Heading H2E. Brush 35 contacting walls 13, 14 forming V-shaped groove 12 of slip-ring 31 has the shape shown so that it sits farther from the apex of the V than does the known ball-shaped brush of similar size. The brush is therefore less likely to be pushed away from the walls by the accumulation of debris. Moreover, because of the relatively low radius of curvature of the brush at the points of contact 33, 34, wear particles, dust &c. tend to be wiped away instead of being trapped. Additional brushes, e.g. 36, of different widths, may be used with the same slip-ring.
Patent GB-1011378-A (GB)
Title: Motor vehicle parking brake mechanism
IPC: B60T1/00
Filed: 1964-01-30
Abstract: 1,011,378. Positive detents. FORD MOTOR CO. Ltd. Jan. 30, 1964 [May 21, 1963], No. 3918/64. Heading F2E. A parking brake mechanism for a motor vehicle transmission comprises a gear 74 mounted on the transmission output shaft 12, a lever 82 pivotally mounted at 88 in a stationary structure 10 and carrying a tooth 94 engageable with the gear 74, a wedge member 112 pivotally mounted on pin 110 in the structure 10 and in engagement with the lever 82, the reaction of the lever on the wedge member being absorbed by contact of the wedge with the structure 10, and a driver-operable linkage 134, 162, 164 connected to the wedge member 112 and operative to rock the wedge member to rock the lever so that the tooth 94 engages the gear 74. As shown, a cam 164 is mounted on a shaft 166 which carries the driver's control lever and when moved to the full-line position shown applies the parking brake by moving a pin 160, pivotally connecting the link 156 to the element 162, from the surface 174 into the recessed portion 172. The movement of the elements 162, 134 thereby cause the wedge member to rotate and force the lever 82 to engage the teeth of the parking gear 74. The elements 162, 134 are connected with lost motion, the element 162 passing through a sleeve 142 on the element 134, a pin 146 and a spring 152 on the element 162 engaging opposite ends of the sleeve. If the cam 164 is moved to apply the brake when the tooth 94 is opposite a tooth on the gear 74 the element 162 will move but the element 134 is prevented from moving so that the spring 152 is compressed. As soon as the shaft 12 is rotated slightly the wedge member 112 and lever 82 are forced by the spring 152 to rotate so that tooth 94 enters a gap between the teeth of gear 74.
Patent GB-538421-A (GB)
Title: A new or improved instructional or amusement appliance
IPC: G09B11/00
Filed: 1940-03-04
Abstract: 538,421. Drawing boards; toys. LOBB, J. B. March 4, 1940, No. 4006. [Classes 11, 132 (iii) and 146 (ii)] An instructional or amusement appliance comprises a board having an aperture or space for a number of displaceable pictures, one of which is displayed and is drawn or copied on a surface on the board. The front board 1, Fig. 1, has an aperture 13 exposing pictures on discs 6, 7, disc 6 having an aperture 6a which when in alignment with aperture 13 exposes disc 7. These discs have holes or notches 11, 9 actuated through slots 14, 15. A recess is formed as a blackboard 16 and a receptacle for drawing paper or as a tray 25, Fig. 6, for assembling dissected. pieces 29. Board 1 may have recesses 26 for actuating the discs. The discs may be actuated by coaxial knobs. Spring members 12, 10 hold the discs in adjusted position. In a modification, the board is provided with an endless band mounted on rollers. The board is recessed to receive a box 1a containing crayons, or a box in which the board is normally housed may be formed with compartments for the drawing materials. The pictures may be packed one behind another for individual removal.
Patent GB-1115865-A (GB)
Title: Signalling system
Inventor: WRIGHT ESMOND PHILIP GOODWIN
IPC: H04J3/12
Filed: 1965-01-29
Abstract: 1,115,865. Data transmission systems. STANDARD TELEPHONES & CABLES Ltd. 28 Jan., 1966 [29 Jan., 1965], No. 4032/65. Heading H4P. In an error-correcting data transmission system, a cyclically repeating test signal series is transmitted whenever there is no other data to transmit. The system described employs a central station at which terminates a number of transmission channels. An arrangement of gates, Fig. 1 (not shown), permits the connection of any line to another. Transmission takes place in both directions between the central station and the out-station, the data being sent in blocks, followed by an error signal indicating whether or not the block sent in the other direction was received correctly. The terminal stations in the central station comprise ferrite stores from which the data is read for transmission. The data as transmitted is also stored in that store but in a different address. The returned error signal causes repetition of all, half, or none of the stored block, as appropriate. Any test signals stored are not retransmitted. In the event of a prolonged error condition, stand-by transmit and receive channels replace the normal channels.
Patent GB-309070-A (GB)
IPC: C08L95/00
Filed: 1929-02-06
Abstract: 309,070. Chemische Fabriken Dr. K. Albert Ges. April 4, 1928, [Convention date]. Emulsions, making.-An emulsion for making roads is made by mixing a binding medium such as prepared tar (tar pitch in anthracite oil), tar and bitumen, or bitumen alone with a watery dispersion or emulsifying agent such as sulphite cellulose waste liquor and stone fragments or gravel. All the constituents are added before any emulsification takes place.
Patent GB-793169-A (GB)
Title: Improvements in or relating to aerial systems
Inventor: THORNE THOMAS GEORGE
IPC: G01S13/60
Filed: 1950-02-16
Abstract: 793,169. Aerials; radar. MINISTER OF SUPPLY. Jan. 30, 1951 [Feb. 16, 1950], No. 4053/50. Class 40 (7). The speed of an aircraft is determined by the Doppler beat frequency produced by reflected ground signals from a transmitter in the craft. The aerials are designed to reduce the effect of changes in both the ambient temperature and transmitter frequency upon the Doppler frequency and comprise two parallel, slotted, wave guides producing respectively a forward and backward directivity pattern and constructed of dissimilar metals mounted on dissimilar metal supports. As shown, the slot radiators 13 in waveguide 4 are all excited in the same phase and produce a directivity pattern 15, directed forward at an angle of 60 degrees to the horizontal. The slots 14 in waveguide 5 are arranged so that alternate radiators are excited in opposite phases and produce a directivity pattern 16 directed backward at an angle of 60 degrees to the horizontal. It is shown that with a charge in the transmitter frequency the two aerials produce equal and opposite changes in the Doppler frequency. Changes in temperature produce Doppler frequency changes of opposite sign and nearly equal magnitude, the resultant small error being further reduced by constructing the waveguides and their supports of different materials.
Patent GB-553220-A (GB)
Title: Carrier current communication systems
IPC: H04J1/10
Filed: 1942-03-27
Abstract: 553,220. Carrier multiplex systems. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). March 27, 1942, No. 4066. [Class 40 (iv)] In a system involving a long multiplex line, some of the channels are branched from the line at normal repeater points or at repeaters specially provided for the purpose and taken to subscribers' lines or telephone exchanges. The multiplex system may be of the type in which the low frequency channels have individual first carrier frequencies and groups of intermediate frequency channels modulate a common second carrier but, in the arrangement shown, the first carrier frequency is the same for all channels and the second carriers are individual. In all cases, the first carrier is transmitted with one side band to the second modulator and is used at the receiving end for generating the second demodulating frequency and is interrupted to convey the usual signals necessary for the establishment of a connection. Any of the stations may be supplied in known manner with operating current over the main or branch cables which may be coaxial. Circuit arrangements. Speech from branch line 34 passes toafirstmodulator38. One side-band is selected by a filter 40 to a point of which a connection is taken from the first-stage crystal-controlled oscillator 39. The output of the filter is amplified and fed to a crystalcontrolled second modulator 43 the output being taken to the appropriate path of the repeater in the main circuit. Signals such as dialling signals act on apparatus 60 to cause the output of filter 40 to be short-circuited. Currents for the channel shown arriving at the main circuit repeater are selected roughly at 48, amplified at 49. and filtered at 50 and undergo their first demodulation in a crystal-controlled mixer 51. The output is separated by filter 55 and crystal 52 into side-band and carrier and the latter controls the oscillator 53 of the second modulator 54. The rectified speech-band is taken from this to the low frequency line and the unmodulated carrier is rectified at 59 and taken to the control circuit 60. The crystals for the tubes 43, 51 are kept at a constant temperature in a chamber 71. Resistances 45, 46, 76 and 47, 48, 81 are chosen to make the through circuit and the individual tapped off circuits independent of variation in the number of channels tapped off.