baber/WOPTO huggingface dataset:
Patent GB-1262386-A (GB)
Title: Improvements in or relating to mobile monopulse radar systems
IPC: G01S13/52
Filed: 1969-10-09
Abstract: 1,262,386. Moriopulse radar. THOMSON CSF. 9 Oct., 1969 [15 Oct., 1968], No. 49719/69. Heading H4D.  A monopulse radar receiver comprises an MTI system fed from a phase detector having a reference input from a wave generator and a sum echo signal input wherein the sum signal is phase modified by an amount proportional to the angular displacement of the target and the radar boresight. In an airborne MTI this reduces the clutter bandwidth enabling a clutter rejection filter of smaller bandwidth to be used, thus lessening the adverse effects of the filter on target returns when a low repetition frequency is used to give a large unambiguous range. The phase is modified to make the phase between successive echoes of a target equal to that between successive echoes of a target situated on the boresight. This difference in phase is: #V c  sin G cos S dGdt, for an aircraft in substantially level flight where V c  is the aircraft velocity; S, G are the elevation and azimuth bearings of the boresight; dG is the azimuth angular displacement of the target from the boresight. In one embodiment, Fig. 3, the phase modification is introduced directly into the sum channel by a varactor-type variable phase shifter P which produces a phase shift corresponding to the product of JV c  sin G cos Sdt and dG which is derived from a Hall effect multiplier M 2 , the integral being taken over four successive transmitter pulses and being reset by pulses from a divide-byfour clock H. dG is produced by phase comparison of #+f# and #-f#, where # and # are the sum and difference signals. The modified sum signal passes to an arrangement comprising a phase detector D 2  having an echo input carrying the modified sum signal and a reference input connected to a wave generator CO, synchronized by the sum signal delayed by a pulse length. The output of the phase detector passes to a conventional anti-clutter device AC comprising cascade connected delay lines before passing to the MTI display through a switch controlled by clock H. In a second embodiment (Fig. 4, not shown) the final MTI arrangement is identical but the phase modification is produced in an adder having two inputs, one being the sum signal delayed by #/2 and the other being the output of a multiplier having inputs #V c  sin G cos S dt, derived as before and the difference signal.
Patent GB-1016201-A (GB)
Title: Mixer
IPC: A47J43/08
Filed: 1963-12-17
Abstract: 1,016,201. Domestic mixers. SUNBEAM CORPORATION. Dec. 17, 1963 [Dec. 31, 1962], No. 49802/63. Heading B1C. [Also in Division H2] A hand-held battery-operated domestic food mixer is driven by a permanent magnet D.C. motor 11 the speed of which can be varied by means of a block of magnetic material 102 ; the position of the block 102 can be adjusted across the poles of the magnet 96, forming a variable magnetic shunt, by means of a thumb wheel 6 which also actuates the on-off switch. Power is derived from six rechargeable nickelcadmium batteries 13 ; a transformer 45 and  silicon-diode rectifier 47 (see Fig. 13, not shown) are provided in the inner casing for recharging. Entry of a mains connecting plug into the opening 53 depresses a plunger 57 to operate a switch disconnecting the batteries from the motor ; a wall mounting bracket incorporating such a plug is described (see also Fig. 11, not shown). The beaters may be ejected by pressure on the upper part of the casing end plate 7, which is pivotable at 24 and has a finger 22 acting on a beater ejection member 19 which bears on shoulders 30 formed on the beater shafts 8.
Patent GB-1306980-A (GB)
Title: Process for preparing zeolitic bodies having high strength character istics
IPC: C01B39/20
Filed: 1970-10-21
Abstract: 1306980 Zeolites W R GRACE & CO 21 Oct 1970 [22 Oct 1969] 50051/70 Heading C1A Zeolites having a silica-alumina ratio of 2 or in the range 2-7 and a particle diameter greater than 200 Á are prepared by hydrothermally crystallizing particles of calcined clay having the desired particle size in the presence of nucleation centres having sizes of 0À01 to 0À05 Á and the chemical composition of zeolites and if necessary sodium silicate may be added to give the desired silica-alumina ratio in the product. Crystalline nucleation centres are prepared by mixing solutions of sodium aluminate, sodium silicate and sodium hydroxide, cooling to 0‹ C., allowing the solution to come to 20‹ C. at which it is maintained for 16 hours prior to heating to 90‹ to 100‹ C. for 6 hours. Amorphous centres may be prepared in a similar manner except that the heating is eliminated and period at 20‹ C. is shorter. The zeolite can be exchanged with CaCl 2  to give a calcium zeolite.
Patent GB-1095892-A (GB)
Title: Apparatus for the investigation of wear, friction and oxide layers
Inventor: BAIST WALTER
IPC: G01N3/56
Filed: 1964-12-10
Abstract: 1,095,892. Testing wear and friction. WINTERSHALL A. G. Dec. 10, 1964, No.50431/64. Headings G1N and G1S. Apparatus for the investigation of wear, oxide layers and friction comprises a rotatable disc 10 and a tiltable frame 4 carrying a pin 3 which engages the surface of the disc. The pin 3 has a relatively large diameter cylindrical body 1 with, at least at one end, a cylindrical extension of smaller diameter and short in length. The pin is clamped in a frame 4 which is rotatable about an axis 4", the rotatable disc 10 being so mounted that its plane passes through axis 4". The pressure with which the pin engages the disc is controlled by a weight 7. The pin may be finely adjusted into engagement with the disc by a rod 8 and nut 8'. Lubricant may be applied to the disc by a tube 9" and collected from it through a conduit 9'. The measurement of wear may be made electrically by means of a circuit Fig. 2 (not shown) comprising a battery, meter and switch. The apparatus may also be used for the investigation of the oxide layers formed on the disc.
Patent GB-1474130-A (GB)
Title: Ethylene-vinyl acetate copolymer-containing adhesive compo sitions
IPC: C09J7/10
Filed: 1974-11-26
Abstract: 1474130 Laminates SHOWA DENKO KK 26 Nov 1974 [30 Nov 1973] 51135/74 Heading B5N [Also in Division C3] Laminates may be prepared by interposing between sheet materials films of hot melt adhesive compositions comprising by weight (A) 100 parts of ethylene/vinyl acetate copolymer or a mixture of such copolymer with polyethylene, the copolymer or mixture containing 1 to 40% vinyl acetate, (B) 1 to 100 parts of chlorinated or chlorosulphonated polyethylene, (C) 0À05 to 100 parts of normally solid unsaturated carboxylic acid and (D) 0À005 to 10À0 parts of organic peroxide, optionally together with (E) phenolic antioxidants and/or (F) acid acceptors, and heating the resulting composite under pressure. Examples describe the preparation of laminates from aluminium foil and polyethylene or plasticized polyvinyl chloride films; wood and polyester films; and polyethylene, plasticized polyvinyl chloride and polyester films with copper plates, galvanized iron plates and glass sheets using adhesive compositions comprising (A) ethylene/vinyl acetate copolymer and optionally polyethylene; (B) chlorinated or chlorosulphonated polyethylene; (C) maleic, fumaric, crotonic, itaconic, citraconic or 2-methylene glutaric acid; (D) t - butyl peroxystearate, dicumyl peroxide 2,5 - dimethylhexane - 2,5 - dihydroperoxide, 2,5 - dimethyl - 2,5 - dibenzoylperoxyhexane, dibenzoyl peroxide or 1,1-bis-t-butylperoxy- 3,3,5 - trimethylcyclohexane; (E) 2,6 - dit - butyl - 4 - methylphenol, 4,4<SP>1 </SP>- thio - bis- (3 - methyl - 6 - t - butylphenol), 1,3,5 - trimethyl - 2,4,6 - tris - (3,5 - di - t - butyl - 4- hydroxybenzyl)benzene, 2,2<SP>1 </SP>- methylene - bis- (4 - methyl - 6 - t - butylphenol), 2,6 - di - tbutyl - 4 - methoxyphenol, p - cresol, phenol or pentaerythritol tetrakis - (3,5 - di - t - butyl - 4- hydroxyphenylpropionate); and (F) dibutyl tin maleate, dibutyl tin dilaurate or calcium and barium stearates.
Patent GB-1043487-A (GB)
Title: The stabilization of materials which are sensitive to oxidation
IPC: A23K30/00
Filed: 1964-12-17
Abstract: Fats, oils and soaps are stabilized by the addition of antioxidants of the general formula <FORM:1043487/C4-C5/1> wherein R1, R2 and R3 each represent a methyl group, R4 represents an alkyl or acyl group, R5 represents an alkyl group, n is 0, 1, 2 or 3, and the broken lines denote that the methyl groups attached thereby are optional. Examples describe stabilized compositions containing (4) sunflower oil, (5) pork lard, (6) arachis oil, (8) and (9) peanut oil, and (12) safflower oil.ALSO:Vitamin-A palmitate is stabilized against oxidation by the addition of N-methyl-b -tocophenyl amine.ALSO:The invention comprises a stabilized composition of an oxidation sensitive material, for example, a vitamin preparation or a cosmetic preparation, containing said material in admixture with 0.001 to 10% by weight of an amine of the general formula <FORM:1043487/A5-A6/1> wherein R1, R2 and R3 each represent a methyl group, R4 represents an alkyl or aryl group, R5 represents an alkyl group, n is 0, 1, 2 or 3 and the broken lines denote that the methyl groups attached thereby are optional. Examples describe vitamin preparations.ALSO:The invention comprises an antioxidizing agent containing from 0.01 to 50% by weight of an amine of the general formula <FORM:1043487/B1-B2/1> wherein R1, R2 and R3 each represent a methyl group, R4 represents an alkyl or aryl group, R5 represents an alkyl group, n stands for 0, 1, 2 or 3 and the broken lines denote that the methyl groups attached thereby are optional, in association with a compatible excipient or carrier which is known per se.  The invention also comprises a stabilized composition of an oxidation-sensitive material containing said material in admixture with from 0.001 to 10% by weight of an amine of the above general formula.  Examples are given.
Patent GB-1463350-A (GB)
Title: Light guide contact
IPC: G02B6/40
Filed: 1974-12-05
Abstract: 1463350 Optical fibre termination BOWTHORPE-HELLERMANN Ltd 5 Nov 1975 [5 Dec 1974] 52718/74 Heading G2J The terminal consists of a sleeve 10 dimensioned to accept the bundle 14, and an end element 12 having a tapered bore 12a and a parallel bore 12b accepting the optic fibre bundle. The sheath 14b is stripped as shown and the cable adhesively secured in the sleeve. The element 12 is then threaded on before the adhesive sets.
Patent GB-1508051-A (GB)
Title: Combustion apparatus
IPC: F23D11/34
Filed: 1975-06-04
Abstract: 1508051 Mixing apparatus MITSUBISHI PRECISION CO Ltd 4 June 1975 [4 June 1974 5 Feb 1975] 52919/75 Divided out of 1507929 Heading B1C [Also in Division F4] A combustion apparatus comprises means for forcing a liquid fuel and liquids into a stream G 1  of high pressure gas to form a mixed finely divided fluid, a nozzle 32 and an impact disperser 34 against which the mixture collides to more finely divide the mixture passing into the combustion chamber 18. In operation, high pressure gas G, passes through valves 12, 14, Fig. 1 through a nozzle 24 where it is mixed with liquid fuel and water which are forced into the nozzle through conduits 28 and 30 respectively and the mixture passes through nozzle 32 where it is swirled along streams A1-A4, and passes into chamber 18 through an angle α. The liquid fuel and water may be pumped along conduits 28, 30, or differences in pressures between conduit 10 and nozzle 24 may be used to cause the flow, the pressure in conduit 10 being controlled by a valve 14 and a threeway cock (58) Fig. 2 (not shown). The flow through conduits 28, 30, can be controlled by a temperature sensor 60, and a combustionstate sensor 62, which are connected to a monitor 64 to control valve 14 and flow controls R 2 , R 3  which are connected to valves 46, 48. Air supply G, is controlled by a device R 4 . Various shapes of disperser are described Figs. 3-5 (not shown), one of which Fig. 4, provides for air (B) to be delivered to the combustion chamber and one of which Fig. 5, is axially adjustable.
Patent GB-1436440-A (GB)
Title: Speech analysis
IPC: G10L25/90
Filed: 1973-11-15
Abstract: 1436440 Vocoders; delta modulators INTERNATIONAL BUSINESS MACHINES CORP 15 Nov 1973 [29 Dec 1972] 52961/73 Headings H4R and H3H [Also in Division G4] The pitch period of voiced speech is determined (e.g. for vocoding and speech/speaker recognition) by sampling, quantizing and coding the analogue speech signal by means of an adaptive delta modulator 10 which for each sampling interval produces one delta bit and one sign bit which are each fed to respective current and time-shifted recycling stores 11, the binary representations of features of the data (e.g. 1st and 2nd derivatives, equivalent to slope and curvature of the data) are compared 12 according to a predetermined key to control a counter 13, the interval between the beginning of comparison and regaining the initial count corresponding to the pitch period. The delta and sign bits are generated (Fig. 4) from the audio input 14 by quantizers 16, 18 sampled at rate f s  (20 kHz). The effective step size of quantizer 16 is automatically adapted to the speech by multiplying 24 the delta stream by a signal 23 representing the average level of speech over a previous short interval and subtracting 15 the product from the speech. This reduces the redundancy of delta bits for large amplitude speech and improves resolution for small amplitude speech. The step size motor signal may be transmitted with the data. Each store defines a "window" (25, Fig. 1, not shown) longer than the expected pitch period and feeds the current and time-shifted bit streams in time multiplex to the extractor 12 where two or three successive bits of both the delta and sign streams are examined to evaluate whether the slope and curvature of the stream is positive, negative or zero (Figs. 5, 6, not shown). The results of the examination are then compared, one slope bit with one curvature bit according to the predetermined key (Fig. 7, not shown) to produce zero or decrement commands to the counter if either bit of a pair is zero or the bits are of opposite sign respectively. If the bits are the same, the product of the current and time-shifted sign bits determines incrementing or decrementing commands. The counter reaches a peak of similar count to that at the start when the end of the pitch period is reached. Alternatively or additionally, the third and fourth derivatives may be used in the examination and comparison operation.
Patent GB-1176438-A (GB)
Title: Quartz-Halogen Lamps
Inventor: AUDESSE EMERY G
IPC: H01K1/18
Filed: 1968-11-08
Abstract: 1,176,438. Electric incandescent lamps. SYLVANIA ELECTRIC PRODUCTS Inc. 8 Nov., 1968 [8 Nov., 1967], No. 53138/68. Heading H1F. In a quartz halogen lamp the lead-in wires 4, 5, which are at least partially embedded in a supporting quartz rod 6 are encircled by short coils of wire 7, 9 in the region of embedment to ensure a more secure joint. A wire 10 supporting the midpoint of the filament is also embedded in the rod 6 and encircled by a coil 8. The wires 4, 5, 10 are made of tungsten and are respectively 35 mils, 28 mils and 18 mils in diameter, and each coil is made of tungsten wire about half the diameter of the wire it encircles and is hot crimped thereon. The coils may be wound with the turns touching (100% pitch) or with a 200% pitch so that the quartz flows between the turns. The lamp contains a bromine-nitrogen atmosphere.
Patent GB-1149050-A (GB)
Title: Production of photographic materials
Inventor: WOOD HENRY WALTER
IPC: G03C1/06
Filed: 1966-12-07
Abstract: 1,149,050. Coating photographic materials. ILFORD Ltd. Nov.24, 1967 [Dec.7, 1966], No.53173/66. Heading G2C. Photographic materials in which at least one of the layers is a gelatine layer, e.g. a gelatine silver halide emulsion layer, are made by depositing said gelatine layer on a support from aqueous solution or emulsion, setting the layer by chilling it and drying the layer, the aqueous solution or emulsion being characterized in that it contains a minor proportion of a sodium cellulose sulphate which has a degree of substitution of 2À2 to 2À7 and has a viscosity in the range of 20 to 160 centipoises as a 5% by weight aqueous solution at 20‹C. When the compound is used in a silver halide emulsion a speed increase is sometimes obtained.
Patent GB-1123780-A (GB)
Title: Improvements in or relating to hunting and sporting weapons
Inventor: FREITAG GUNTHER
IPC: F41A17/74
Filed: 1966-12-05
Abstract: 1,123,780. Sporting weapons. ERNST-THALMANN-WERK SUHL VEB. 5 Dec., 1966, No. 54354/66. Heading F3C. A multi-barrelled hunting and sporting weapon is provided with a safety device which comprises an operating member 18 slidable between two triggers 5, 6 and having two control pins 16, 16a, one projecting from each side of the member 18, the pins 16, 16a co-operating with two spring- loaded safety catches 12, 13 pivotally mounted on a triggerplate. During cocking of the weapon which is brought about by the " breaking " of the weapon, the bolt (not shown) urges the member rearwardly over its guide pins 7, 19 such that the catches 12, 13 are released by the pins 16, 16a, hooks 12a, 13a of the catches lodging in safety recesses 1b, 2b in hammers 1, 2 respectively. At the same time a safety pin 17 on the member 18 blocks the triggers 5, 6 (Figs. 1, 4, not shown). A pivoted spring-loaded sear 8, 9 co-operates with each hammer 1, 2 in the cocked position after the safety catches are engaged, if either of the co-operating parts of the sear and hammer fail when the weapon is cocked the safety device cannot be retracted because of the combined pressures of the hammer springs 4 and the safety catch springs 15, 15a.
Patent GB-539151-A (GB)
Abstract: 539,151. Refrigerating. DETROIT LUBRICATOR CO. Feb. 27, 1940, No. 3630. Convention date, March 8, 1939. [Class 29] [Also in Group XXXV] Compression machines. The circuit of the driving motor 2 is closed when the pressure or temperature of the condenser 8 falls unduly as the, result of low atmospheric temperature, to ensure that the cooling water does not freeze and that refrigerant does not flow from the evaporator and convey oil to the compressor suction due to closing down of the machine under normal low pressure control. The motor switch 47 is normally controlled in response to changes in suction pressure conveyed through a pipe 29 to a chamber 28 around a bellows 25 carrying a rod 30 actuating levers 35, 42 and a contact arm 45 in opposition to an adjustable spring 37. The condenser or delivery pressure is conveyed through a conduit 58 to a chamber 57 around a bellows 56 carrying a rod 59 adapted when the pressure is low to raise one end of a lever 60 and through an arm 66 to close the contact arm 45. An adjustable spring 74 engages the lever 60. In a modification the bellows 56 is influenced by a thermostat in the condenser. The cooling-water valve 87 is controlled by the condenser pressure, and the expansion valve 13 by a thermostat 14 near the evaporator 10.
Patent GB-1390622-A (GB)
Title: Esterification process
IPC: C07C69/34
Filed: 1971-11-19
Abstract: 1390622 Esterification of dibasic acids BRIGGS & TOWNSEND Ltd 17 Nov 1972 [19 Nov 1971] 53963/71 Heading C2C Alkyl esters of dibasic acids are obtained by reacting an alkanol, which is more volatile than water (i.e. methyl, ethyl and propyl alcohols), with a dibasic organic acid or functional derivative thereof under esterification conditions, distilling off the residual alkanol/water mixture and separating this mixture into a water-rich fraction which is removed and an alkanol-rich fraction which is returned to the esterification reaction mixture, said esterification and fractionation being carried out under super-atmospheric pressure (e.g. 10-100 p.s.i.g.). The concentration of alkanol in the esterification reaction mixture is preferably from 50% to 500% in excess of the stoichiometric amount required to produce the diester. The preferred acid starting material is a mixture comprising glutaric, adipic and succinic acids together with H 2 SO 4 , HNO 3  and Cu and V catalyst materials (A.G.S. acid), which mixture is a by-product of adipic acid manufacture. Using A.G.S. acid the esterification and rectification are generally carried out until the original acid value of 800- 850 falls to below 50 mg. KOH/g. in the esterification reaction mixture.
Patent GB-1335053-A (GB)
Title: Die suitable for use in a method of applying a layer of tin or tin alloy to a copper or copper alloy wire by hot dipping and such a method using the die
IPC: C23C2/08
Filed: 1970-11-12
Abstract: 1335053 Coating a copper wire with tin by hot dipping SIEMENS AG 12 Nov 1970 [13 Nov 1969(4)] 53974/70 Heading C7F A Cu or Cu alloy wire which is coated with Sn or Sn alloy by hot dipping is passed through a die of e.g. diamond, ruby or stainless steel having recesses around its inner surface, these being between 3 and 15 recesses per m.m. of the circumference of the die. The die may be between 20 and 120 cm above the bath, and it may be heated, e.g. electrically, to 180 to 220C.
Patent GB-1476776-A (GB)
Title: Syringes
IPC: A61M5/46
Filed: 1974-12-13
Abstract: 1476776 Syringes R A J WILLIAMS 9 Jan 1976 [13 Dec 1974] 53998/74 Heading A5R A syringe particular for producing extradural anaesthesia has a cylinder 1 with a plunger 4 at one end, a nozzle 7 for the socket 9 of a needle 8 at the other end, and a collar 6 surrounding the nozzle and having a lateral extension 14 for a sleeve 15 in which a probe 16 slides, the probe being provided with graduations 16a, 16b which indicate the rate of penetration of the needle into flesh by their movement passed a fixed point on the cylinder. Alternatively this rate may be determined by movement of the rear end 18 of the probe passed graduations 19 on the cylinder. The probe may have a rounded front end 17 and have its resistance to sliding through the sleeve 15 altered by a screw cap 20.
Patent GB-1095849-A (GB)
Title: Process for the production of cyclobutane-1,2-dinitrile
Inventor: RUNGE JURGEN
Filed: 1966-12-02
Abstract: Cyclobutane-1,2-dinitrile is produced by irradiating acrylonitrile, with or without the addition of a polymerization inhibitor or a neutral solvent, with visible light and/or U.V. light and separating the cyclobutane-1,2-dinitrile from the resulting mixture there being added to the acrylonitrile as photo-sensitizer benzaldehyde or a derivative thereof, or g -pyrone or its homologues or benzo derivatives.  The photo-sensitizer may be a benzaldehyde of the general formula <FORM:1095849/C2/1> in which R1 and R2 are the same or different and each represents hydrogen or a halogen or an alkyl, aryl, cyano or ester group.  Preferred photo-sensitizers are p-tolualdehyde, p - bromo-benzaldehyde, 2,6 - dimethyl - g  - pyrone and xanthone.
Patent GB-1300459-A (GB)
Title: Improvements in differential dead-weight gauges
Inventor: SWIFT KENNETH GEOFFREY
IPC: G01L7/16
Filed: 1970-11-17
Abstract: 1300459 Pressure gauges BUDENBERG GAUGE CO Ltd 14 Oct 1971 [17 Nov 19701 54717/70 Heading G1L In a differential dead weight gauge a dead weight piston 1 is rotated by a spindle 11 driven by an electric motor and reciprocated in a cylinder 2, a high-pressure fluid is provided via an inlet 14 to an annular space 15 at one end of the piston 1 and a low-pressure is supplied via inlet 16 to a chamber 17 to the other end of piston 1 and the piston 1 and cylinder 2 is tilted about pivots 19 by a screw jack 20, 22 by bevel gears 23 to alter the dead weight of the piston 1.