baber/WOPTO huggingface dataset:
Patent GB-621068-A (GB)
Title: Improvements in or relating to engine cowls for aircraft
IPC: B64D33/08
Filed: 1946-09-17
Abstract: 621,068. Cooling aircraft engines. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Sept. 17,1946, No. 27811. Convention date, Dec. 19, 1945. [Class 4] [Also in Group XXVII] A ring 5' behind the cowl 1 of an aircraft engine defines a passage for air from the outside of the cowl and, by a venturi effect, aspirates air through the cowl 1. The ring 5<SP>1</SP> is radially extensible under the control of the pilot and normally forms a continuation of the cowl 1. Two mechanisms for operating the cowl are described. In one (Fig. 6), each of the segments 8, 8 is carried at its extremities by levers 13, 14 and 28, the latter being secured to the axle 27 of an electric motor. The lever 13, 14 is connected for operation with the lever 28 by a toothed sector 26 engaging teeth 25 on a circular rack 24 having further teeth 23 adapted to operate a toothed sector 22 connected by a linkage 21, 19 to the lever 13, 14. In the other operating mechanism, the two segments 8, 8 are guided to move diametrically outwards under the force of a fluid-pressure jack. Flaps 31 ensure continuity between the fixed and moving parts 7, 8 of the ring 51.
Patent GB-1234933-A (GB)
Title: Ventilating nozzle
Inventor: SNOW JOHN DOUGLAS
IPC: F24F13/14
Filed: 1967-06-16
Abstract: 1,234,933. Ventilators. ROTHERHAM & SONS Ltd. 14 June, 1968 [16 June, 1967], No. 27855/67. Heading F4V. A ventilating nozzle for a motor vehicle comprises a housing 1 containing a directionally adjustable nozzle member 2 and upstream thereof, two rectangular butterfly valve members 4, 5 mounted on pivots 6, 7, the valve members being simultaneously rotatable in opposite directions and by equal angular amounts between extreme open and closed positions. As shown, the valve members 4, 5 are rotated by intermeshing gear quadrants or wheels 8, 9 which are connected to the pivots 6, 7 respectively and by a lever 12 which is pivoted at 13 and joined by a pin-andslot arrangement to the gear 8 and/or 9. The lever 12 projects from the mouth 3 of the housing at one side thereof, and is moved independently of the member 2. The nozzle member itself is a set of fixed horizontal vanes and a set of vertical vanes adjustable about a vertical axis by a quadrant-shaped member.
Patent GB-809802-A (GB)
Title: Improvements in continuous thermal process of making carbon black
Inventor: ANTONSEN RANDOLPH
IPC: C09C1/54
Filed: 1956-09-12
Abstract: Carbon black is obtained by the thermal dissociation of gaseous hydrocarbons in a continuous process by passing the hydrocarbon into an unobstructed heat-insulated reaction zone, into which hydrogen heated to above the dissociation temperature of the hydrocarbon is simultaneously introduced.  The hydrogen produced in the process is preferably employed, and should be heated to at least 2400 DEG  F. The products are cooled and the carbon black is recovered in a suitable collector.  In the Figure, hydrocarbon gas is preheated, preferably to 1500-1800 DEG  F., by passing through a preheater 12, before entering the reaction chamber 10 via duct 14.  Hydrogen enters via duct 16 from the pebble heater 34, where it is heated <PICT:0809802/III/1> to 3000-4500 DEG  F.  The pebble heater 34 may be heated by burning hydrogen from the process, and the air required for the combustion may be preheated in the recuperator 20, through which the products of the process pass before being cooled in cooling section 18 prior to separating the carbon black in cyclones 22 and bag filter 25.  The type of carbon black obtained may be altered by diluting the hydrocarbon gas with an inert gas, by altering the proportions of hydrogen and hydrocarbon and their temperatures, and by varying the degree of their mixing in the reactor.
Patent GB-177752-A (GB)
Title: Apparatus for combustion of liquid fuel
IPC: F23C99/00
Filed: 1921-10-21
Abstract: 177,752. Becker, E. Oct. 21, 1921. Addition to 177,204. Liquid-fuel furnaces.-In the apparatus desscribed in the parent Specification the combustion-supporting air is divided into two streams, both of which are given a conical form, one passing over the cover 7 of the annular disc 1 through a grating 4 and the other through an annular slot 9 formed between the brickwork 3 and the disc 1. Part of the upper air stream passes through openings 8 in the cover 7 to the interior of the disc 1. The grating 4 consists of inclined concentric rings a, b, c, and a conical centre piece d. The grating may be formed in one piece or of separate rings, each ring having radial arms resting on the next outer ring. The disc 1 is provided with feet 2 by which it is supported on the brickwork 3.
Patent GB-1026438-A (GB)
Title: Method of an apparatus for seperating fibre particles from fired tea leaves and tea particles
Inventor: LEA KENNETH MANTON
IPC: A23F3/06
Filed: 1964-07-07
Abstract: 1,026,438. Electrostatic separation. BOMBAY BURMAH TRADING CORPORATION Ltd. July 7, 1964, No. 28020/64. Heading B2J. Fibres are extracted from fired tea leaves and particles by feeding the tea down a vibrated board B 1  towards an insulated rotated roller 1 on which a static electric charge is produced, scraping off the fibres attracted on to the roller by a board B 2 , and collecting the leaves and particles falling off or past the roller on a board B 3 . Roller 1 is of wood with a P.V.C. covering 2, and drives by friction a felt covered roller 6, the rubbing between the two rollers producing the static charge. The higher moisture content of the fibres is responsible for the fibres being attracted to the roller 1 more strongly than the leaves and particles. Board B 1  is covered by a metallic sheet 12 except near roller 1. In. Fig. 4 (not shown), three such separators are arranged in vertical cascade, the rollers 1 and the mechanism vibrating the boards B 1  e.g. eccentrics, all being driven by a single motor.
Patent GB-209813-A (GB)
Title: Improvements relating to the strapping and sealing of boxes, packing cases and the like
IPC: B65B13/02
Filed: 1922-10-16
Abstract: 209,813. Inkpen, R. S. Oct. 16, 1922. Seals and seading. -Relates to the strapping and sealing of boxes, packing- cases, &c. Bands A, Fig. 3, of hoop iron &c. are tightened around the box &c. and clips Care forcibly contracted so as to indent the overlapping ends of the bands, and to form the joint shown in Fig. 5. The end or ends of the bands may be bent over the clips, as shown in Fig. 9. The clips are of sufficiently stout wire to enable them to remain in the contracted position and may be of round, square, rectangular, trapezoidal, semicircular, or crescent cross-section. The indentation may be effected by pliers having suitably formed jaws or by means or a device shown in, Fig. 12, comprising a frame T with a jaw V coacting with a corresponding jaw V<1> on a sliding bar W. The bar is actuated by toggle levers 1. 2 from a lever 6 on a floating fulcrum 7 on a link 8 pivoted at 9.
Patent GB-1256207-A (GB)
Title: Improvements in or relating to diversity radio receivers
IPC: H04B7/08
Filed: 1970-06-10
Abstract: 1,256,207. Diversity reception. LICENTIA PATENT-VERWALTUNGS G.m.b.H. 10 June, 1970 [30 July, 1969], No. 28073/70. Heading H4L. In a diversity reception system, a plurality of aerials provide signals BB1 to BBn which are supplied to a combining device KB. Filters Fl to Fn select noise signals in a band above that of the wanted signals from the outputs BB1 to BBn, which are amplified, RV1 to RVn. An auxiliary signal of predetermined frequency, e.g. 1 Me/s., is generated at G and supplied via amplifier ZV to the amplifiers RV1 to RVn. Filters W1 to Wn separate the noise signals from the auxiliary signals in the outputs of amplifiers RV1 to RVn, the noise signal being used to control the gain of the amplifiers so that the output level of the noise signals is approximately constant. The auxiliary signals are rectified at GR1 to GRn and fed as control signals to the bases of the transistors TR1 to TR3 respectively, in the combiner KB, together with the signals BB1 to BBn. The D.C. outputs from GR1 to GRn are also supplied to diodes D1 to Dn which are provided with a fixed negative bias, e.g. - 5 volts and whenever the greatest of these outputs reaches 5 volts this voltage is applied to control the gain of amplifier ZV and maintain it constant. In a modification, transistors are substituted for the diodes D1 to Dn.
Patent GB-821389-A (GB)
Title: Improvements in or relating to feedwater heaters
IPC: F22D1/02
Filed: 1957-09-05
Abstract: 821,389. Heating feedwater. BROWN BOVERI & CIE A.G. Sept. 5, 1957 [Sept. 10, 1956], No. 28081/57. Class 64(1) Superheated steam 7 bled from a turbine is cooled in three stages in three groups E, K, U of feedwater heaters, being first desuperheated in counterflow heaters E which are by-passed by a portion of the feedwater flowing in a pipe 5 throttled at B, then, secondly, condensed in feedwater heaters K and, finally, cooled further, as condensate, indicated by broken lines, flowing, in series and in counterflow to the feedwater, in heaters U which are bypassed by a portion of the feedwater, flowing in a pipe 2 throttled at A. As indicated, the feedwater heaters E, K, U are of one type, different numbers being provided in each group to obtain a required relationship of heat exchange surface.
Patent GB-427079-A (GB)
Title: A process for concentrating formic acid
IPC: C07C51/487
Filed: 1934-10-01
Abstract: Formic acid is concentrated by combining it with a weak organic base, preferably an aromatic or heterocyclic base so as to form an acid or neutral salt, then distilling off the water with an entraining agent as an azeotropic mixture, and finally distilling off the formic acid as an azeotropic mixture with the same entraining agent.  Suitable organic bases are diethylaniline, dimethylaniline, quinoline, pyridine and picoline, and suitable entraining agents are hydrocarbons such as toluene and their halogen derivatives.  In examples 35 per cent formic acid is combined with diethylaniline, quinoline or pyridine, and then distilled with toluene, the water passing off at 84 DEG  C. and the acid at 87 DEG  C.
Patent GB-386377-A (GB)
Title: Improvements relating to baking tins
IPC: A21B3/13
Filed: 1931-10-12
Abstract: 386,377. Bread-making. OWEN, H., 60, St. Aubyn Street, Devonport. Oct. 12, 1931, No. 28266. [Class 28 (i).] Rectangular baking tins are provided with semicylindrical fluted covers resting with their own weight on the dough. Four tins A are shown, connected together by flat bands B and angle strips E, and provided with covers C suspended from angle strips D which, at the beginning of the baking operation, rest on the ends of the tins, lifting therefrom as the dough expands.
Patent GB-1214779-A (GB)
Title: A rapidly setting portland cement composition and process of forming a modified portland cement
IPC: C04B22/00
Filed: 1969-06-04
Abstract: 1,214,779. Cement compositions. PORTLAND CEMENT ASSOCIATION. 4 June, 1969 [11 June, 1968], No. 28370/69. Heading ClH.  A rapid set cement composition contains 1- 30% of 11CaO.7Al 2 O 3 .CaX 2 , X being halogen. 1-12% of CaSO 4  can also be present. The halo compound can be added directly to the cement or it can be formed in situ by heating cement ingredients containing an excess of A1 2 0 3  with, e.g. CaF 2  or CaCI 2  the temperature for the fluoride being 1275-1400‹ C. and for the chloride being 1380-1510‹ C. The product can be used as is, or blended with ordinary cement. Lightweight aggregates, e.g. pumice, expanded perlite or verniculite or normal ones, e.g. sand or gravel can be bonded with the cement.
Patent GB-1442922-A (GB)
Title: Process for the production of a phenolic resin foam
IPC: C08J9/00
Filed: 1974-06-26
Abstract: 1442922 Rigid phenolic resin foams DEUTSCHE TEXACO AG 26 June 1974 [30 June 1973] 28423/74 Heading C3C A rigid phenol-formaldehyde resin foam is prepared by incorporating into a mixture consisting of a phenol-formaldehyde resin solution, hardener and expanding agent prior to foaming, an aqueous dispersion of a copolymer consisting of at least one fumaric acid diester, at least one vinyl aromatic hydrocarbon and, optionally, at least one polymerizable olefin, and foaming and hardening the mixture at room temperature. The composition preferably contains 5-30% by weight, based on the dissolved solids content of the resin solution, of the copolymer and the composition is foamed and hardened preferably in a mould. The phenolic resin solution may be an alkaline condensed, aqueous phenolformaldehyde resin solution having a phenol/ formaldehyde mole ratio of 1 : 1À1-3 and a viscosity of 1000-6000 cps, and a solids content of 70-80% by weight. The preferred copolymer is obtained by polymerization of a mixture consisting essentially of (1) 50-90 parts by weight of at least one fumaric acid diester of C 3-6  tertiary and/or secondary aliphatic alcohols (e.g. diisopropyl fumarate), (2) 0 or 1-10 parts by weight of at least one C 2-8  olefin (e.g. propylene), (3) 3-25 parts by weight of at least one vinyl aromatic monomer (e.g. styrene) and (4) 5-20 parts by weight of at least one fumaric acid diester of C 4-8  primary aliphatic alcohols (e.g. di-n-butyl fumarate). In the examples, the foams are obtained from phenol-formaldehyde resin, pentane and (1), (2) copolymer of fumaric acid diisopropyl ester/fumaric acid di-n-butyl ester/styrene/propylene as an aqueous dispersion hardened with (1) HCl, (2) phenolsulphonic acid. Comparative examples utilize the base composition of (1), HCl hardener and (3) no additive, (4) epoxide, (5) polyester, (6) polyacrylate, (7)- (8) polyvinylacetate.
Patent GB-405075-A (GB)
Title: Improvements in and relating to sheet metal containers
IPC: B65D25/16
Filed: 1932-10-12
Abstract: 405,075. Linings for sheet-metal cans &c. AKT.-GES. FUR PATENT - UND INDUSTRIEWERTE, Glarus, Switzerland. Oct. 12, 1932, No. 28429. Convention date, Oct. 12, 1931. [Classes 66 and 94 (i).] An air-tight tin is provided with an inside lining of corrugated cardboard having an inside flat overlayer. The tin comprises a body 1 with seamed bottom 3 and is provided with a bottom covering 6, and body covering 4. After filling the top covering 5 is placed on the product and the end 2 seamed on. In a modified form the top and bottom coverings extend over the full area of the tin and are spaced apart by the side covering. The contents may be enclosed in a paper bag, a paper disc being placed under the lid, and seamed over with it. The tin may be evacuated and filled with an inert gas, and the outer surface of the corrugated cardboard may be treated with a moisture or oxygen absorbing agent. Both sides of the corrugated cardboard may be faced, and the inside flat overlayer of the cardboard may be perforated. Reference has been directed by the Comptroller to Specification 337,440, [Class 94 (i), Packing &c.].
Patent GB-152682-A (GB)
Title: Improvements in and relating to surface measuring apparatus
IPC: G01B5/26
Filed: 1920-10-08
Abstract: 152,682. Krupp Akt.-Ges., F. Oct. 21, 1919, [Convention date]. Surface areas, computing. - Apparatus for measuring the surface area of a piece of leather &c. comprises two bars A secured in parallel by pins a<1> on a fixed base, and a guide-bar B having cruciform-shaped members b<1> with spherical projections b<2> adapted to engage oppositely disposed and equidistant holes a<2> formed in the two bars A. The distance between the holes corresponds to the width of the strips into which the surface is to be divided. A measuring-wheel D adapted to slide along the bar B is provided to sum up the various widths of the surface, the area being obtained by multiplying this total by the distance between the holes a<2>.
Patent GB-1275637-A (GB)
Title: Pilot chute controlled inflation system for parachutes
Inventor: SNYDER STEPHEN LOUIS
IPC: B64D17/02
Filed: 1969-06-05
Abstract: 1275637 Parachutes S L SNYDER 5 June 1969 [11 Feb 1969] 28586/69 Heading B7G A pilot chute is connected to a parachute by one or more reefing lines each of which passes through a plurality of guides spaced apart on the surface of the parachute canopy, such that the rate of opening of the parachute is restricted, so reducing opening shock. As shown in Fig. 2 a pilot chute 24 is connected to the canopy 12, 14, 16 by a reefing line 20 through guides 22 each in the form of a ring attached to the canopy (Fig. 9, not shown). Immediately after the pilot chute 24 has opened, the guides 22 are closely spaced the parachute being still closed (Fig. 1, not shown), and the drag of the pilot chute 24 exerted through the reefing lines slows the opening of the parachute, by slowing the movement apart of the rings. Also, as the parachute opens, the distance between the outer guides, on parts 12, 16 of the canopy increases hence, decreasing the distance between pilot chute 24 and the parachute 12, 14, 16 until, when theparachute is fully opened the pilot chute 24 becomes enclosed by inverting of the bag 26 which originally held the parachute. The parachute may be of designs other than the one shown and part of the reefing line or lines between the respective guides 22 may lie within the canopy.
Patent GB-1399263-A (GB)
Title: Tuning mechanisms for radio frequency tuners
IPC: H03J1/14
Filed: 1972-06-19
Abstract: 1399263 Radio tuners with fine tuning MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 19 June 1972 [18 June 1971 (4)] 28693/72 Heading H3Q [Also in Division F2] In a tuning mechanism for a radio frequency tuner including a rotor 26 for varying the tuning of the tuner, a control shaft 10, a gear train 20, 33, 25 and 34 between the shaft 10 and the rotor and a detent mechanism 16, 17, 18 to enable the shaft 10 to be positioned in a stepby-step fashion, a manually operable fine tuning shaft 11 provided with a cam 35 and a cam follower 37 associated with the cam moves the position of the rotary axis of one gear 25 of the train relative to the rotary axis of another gear 34 of the train so as to move the rotor 26 by planetary movement of one gear with respect to the other. In the T.V. tuner shown the shaft 10 drives via gears 20, 33, 25 and 34, the rotor 26 of a variable capacitor 27. The rotor 26 is moved in a step-by-step fashion due to the detent mechanism which includes a cam 16 and a ball 18 recessed in a spring 17. Anti-backlash gears 33 and 34 each consist of a pair of gearwheels 24, 29 spring loaded by a spring 32, 41. Fine tuning is obtained by rotating a sleeve 11 which rotates a cam 35. This moves a lever 37 so as to pivot a support lever 21 about the control shaft 10. The gears 33 and 25 are mounted on the support lever 21 so as to rotate in a planetary manner about the gears 20 and 34 to cause fine rotary adjustment of the rotor 26. The cam 35 is frictionally held in the adjusted position by a leaf-spring (60, Fig. 1, not shown).
Patent GB-976261-A (GB)
Title: Direct print photographic materials
IPC: G03C1/49
Filed: 1962-07-26
Abstract: 976,261. Photographic silver halide materials. EASTMAN KODAK CO. July 26, 1962 [Aug. 1, 1961], No. 28746/62. Heading G2C. Photographic silver halide material developable by uniform exposure to light contains a mercapto compound and a salt of copper. The salt may be cupric sulphate, copper acetate or copper nitrate. Compounds specified are o-mercapto benzoic acid, oxazoline-2-thiol, 5-acetamido-2-mercapto-thiazole, 2-mercapto-4-phenyl-thiazole, 2- mercaptobenzoxazole, 1-methyl-2-mercapto-imidazole, 1-isoamyl-2-mercapto-imidazole, 2-mercaptobenzimidazole, 5-amino-2-mercapto-1, 3,4- thiadiazole and its acetyl derivative, 3-mercapto- 1, 2, 4-triazole and its 5-methyl derivative, 1- phenyl-, 1-m-carboxyphenyl-and 1-(3-methylsulphonamide-phenyl)-5-mercaptotetrazole, 4, 5- diamino-2-mercapto-pyrimidine, 1, 4-bis(2 mercaptoethyl) piperazine, 5-p-chlorophenyl-2-mercapto-1, 3, 4, (4H)-thiadiazine, 5, 6-dimethyl-3-mercapto-1, 2, 4-triazabenzene, 4-mercapto-1, 2, 3, - -triazanaphthalene, 2, 4-dimercapto-6-phenyl-dihydro-s-triazine, 3-mercapto-1, 2, 3a-triazaindene, 4-mercapto- 6-methy-1, 3, 3a, 7-tetrazaindene, 6-hydroxy 3-mercapto-5-methyl- 1, 2, 3a, 4, 7-pentazaindene and 7-methyl-6-thiopurine. Specification 635,841 is referred to.
Patent GB-1417144-A (GB)
Title: Internal combustion engines
IPC: F02M23/00
Filed: 1972-06-20
Abstract: 1417144 Purifying I.C. engine exhaust gases KINEMATICS Ltd 18 June 1973 [20 June 1972] 28768/72 Heading B1W [Also in Divisions Fl and G3] A valve 24 in a flow passage between the air intake, e.g. the air cleaner 22, and a position in the ehxaust system where exhaust gas pressure changes occur during engine operation, e.g. the exhaust manifold 18, permits air flow into the exhaust system when the pressure therein is sub-atmospheric and a restricted recirculation of exhaust gas to the air intake when the pressure in the exhaust system is super-atmospheric. At least some of the air fed to the exhaust system will be drawn into the engine cylinders. The valve 24 comprises an apertured disc 50, e.g. stainless steel with an outer ring of apertures (52), Fig. 3 (not shown), which are obstructed and unobstructed respectively with the disc engaging the limiting surfaces 46 and 40 of the valve chamber 36. A central group of apertures (54) in the disc 50 are not obstructed by the surface 46. A water container 60 is connected to the throat of a venturi 56 in the air and exhaust gas flow passage for water addition to the air or exhaust gas flow in the passage. The disc 50 may oscillate between the surfaces 40 and 46 during certain engine operating conditions to provide a pulsating flow of exhaust gas or air to the intake or exhaust system. An afterburner or catalytic converter may be provided in the exhaust system downstream of the valve 24. Dimensions and numbers of disc apertures are given in the Specification.
Patent GB-340257-A (GB)
Title: Improvements in and connected with fire prevention devices for kinematograph film apparatus
IPC: G03B21/18
Filed: 1929-09-23
Abstract: 340,257. Kinematograph apparatus. COWIE, F., 5, St. George's Avenue, Ealing, London. Sept. 23, 1929, No. 28779/29 and 9842/30. [Class 97 (i).] A fire-prevention device for film-winding apparatus comprises a gravity influenced nipping or snuffing device mounted on the spool container and normally retained in open position by the tension of the film, the device engaging with an extended length of the film when the tension is released. In one form of construction a casing p, Fig. 1, having a slot n for the passage of the film and bearing a lip u to one side of the slot, is mounted on the spool container b. A swinging jaw j pivoted to the casing at i bears a lip k corresponding to the lip u so that on release of the tension on the film the lip k closes on the lip u. In the construction shown in Fig. 6 a swinging plate 2, which may be spring-urged, is provided with a roller 7 bearing on the film and a wedge-shaped projection 8 which is adapted to enter the slot 9 through which the film passes to the take-up spool. Any pull on the film after it is severed causes the wedge 8 to grip the film more tightly in the passage 9. The plate 2 also provides a tortuous path for the flame to traverse.
Patent GB-1107431-A (GB)
Title: Digital frequency divider with an adjustable divider factor
IPC: G06F7/68
Filed: 1965-07-07
Abstract: 1,107,431. Electronic counters. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. 7 July, 1965 [11 July, 1964], No. 28795/65. Heading G4A. The nines-complement of a predetermined count is set up manually at 20 and entered into counters 9, 10, 11 via stores 17, 18, 19. Initially output r of flip-flop 14 is energized so that input pulses pass limiter 12 and AND gate 13, the rear edge of each pulse stepping the counter 9. When the counters register 997 leads a-f, i are all marked so that the beginning of the next pulse, via lead k, operates AND gate 15. Flip-flop 14 changes over to disable 13 but opens AND gate 16 to the pulse corresponding to the predetermined count which restores the counters 9-11 to their starting points. An output is also taken from 16. Slower-acting counters 10, 11 may be used for the higher denominations, Fig. 4, with flip-flops 22, 21 reversing at counts of 900 and 90, respectively. The higher denomination may operate in pure binary code as shown by leads g, h.