baber/WOPTO huggingface dataset:
Patent GB-1390994-A (GB)
Title: Intrusion alarm detection systems
IPC: G01S13/56
Filed: 1972-09-26
Abstract: 1390994 Doppler radar JOHNSON SERVICE CO 26 Sept 1972 [26 Jan 1972] 44469/72 Heading H4D An intrusion alarm detection system, for detecting bodies in a protected area, radiates signals at, e.g. microwave frequencies (2-45 GHz), and responds to Doppler signals reflected from a moving body in the protected area, such that an alarm is enabled when a single cycle of a Doppler signal having an amplitude exceeding a certain level and a frequency less than a predetermined frequency is detected. To reduce response to spurious signals, and to improve detection of both slow and fast moving persons, only Doppler signals having a frequency of less than, e.g. 5À5 Hz are selected above a preset amplitude, by a low pass filter which may be digital or analogue. The signal transmitted from antenna 22, to reflect from target 30, and be received at 24, is mixed with the received signal from receiver 23 in mixer 25, in which the Doppler signal is extracted and is then amplified by amplifier 26, which signal is fed to filtering and detection circuit 27 (see Fig. 2), where an alarm signal is generated to trigger alarm 28. A Schmitt trigger circuit 35 is set to operate on receiving Doppler signals in excess of an amplitude set by potentiometer R1, and provide an output signal V<SP>+</SP> at A as long as it is triggered. The presence of signal A immediately triggers monostable 40 to produce a pulse B, adjusted in time duration to be equal to a half wavelength of the highest Doppler frequency to be detected, by delay circuit adjustment 49. Signals A and B are gated in exclusive OR gate 42. When the duration of the signal A is longer than that of signal B, i.e. corresponding to a frequency less than the frequency, say Fe predetermined by means of adjustment 49, and therefore required to trigger than alarm 28, signal B cuts off, leaving one signal V<SP>+</SP> on gate 42, thereby producing an output signal C from gate 42, which enables NAND gate 43, since signal A is also fed to the other input thereof. Inverter 44 then produces a trigger pulse for monostable 46 which triggers the alarm circuit 28. When signal A has a duration less than monostable 40, i.e. corresponding to a frequency higher than the cut-off frequency Fe of the digital filter (see Fig. 2A), signal B triggers exclusive OR gate 42 after A cuts off, but signal C is solely applied to gate 43 which is not enabled in the absence of signal A. In a further embodiment an active low pass filter (Fig. 5, not shown), is fed by amplifier 26, and has a finite roll-off above the cut-off frequency, of steepness dependent on the number of stages in the filter circuit. The filter feeds a level detector circuit, e.g. a Schmitt trigger which in turn may trigger the alarm circuit 28, when Doppler signals greater than a certain amplitude level preselected as indicative of the detection of a moving body within the protected area, are passed by the filter.
Patent GB-1320437-A (GB)
Title: Starting aids provided with a burner for heating the air for  combustion of diesel engines
IPC: F02N19/06
Filed: 1971-09-24
Abstract: 1320437 Starting; heating combustion air ROBERT BOSCH GmbH 24 Sept 1971 [28 Sept 1970] 44601/71 Headings F1B and F1K Combustion air heating device for a diesel engine comprises a combustion chamber 14 through which combustion air flows in parallel with the flow through the main induction pipe 10' . Air enters the device through a filter 11 and is controlled by a valve 15. An electromagnetic valve 17 controls the flow of fuel from a pump 18 to an injection nozzle 16. The airfuel mixture is ignited by a spark plug 20. The valve 15 can be operated automatically when the engine is being started or is running light, the pump, valve, nozzle and spark plug can be energized at the same time.
Patent GB-1166130-A (GB)
Title: Improvements in or relating to plug contacts
IPC: H01R31/02
Filed: 1967-10-03
Abstract: 1,166,130. Two part couplings. CURT WINEMAR A.B. 3 Oct., 1967 [3 Oct., 1966], No. 44882/67. Heading H2E. A flat plug 6 and mating socket 1 are formed from sheet metal, the plug being provided centrally embossed with transverse ribs 7a, 7b, and the socket being constructed with flanges 3 having lips 3a. A stop 8 formed in the socket cavity co-operates with ribs 7a. As shown, two plugs 6 may be formed integrally with a socket, while socket 1 is adapted for connection to a cable.
Patent GB-1202743-A (GB)
Title: Process for the manufacture of new derivatives of dimeric aliphatic alcohols
IPC: C08G59/50
Filed: 1967-10-03
Abstract: 1,202,743. Derivatives of dimeric aliphatic alcohols. SCHERING A.G. 3 Oct., 1967 [5 Oct., 1966], No. 45008/67. Heading C2C. Bis - # - cyanoethyl ethers of dimeric aliphatic alcohols are obtained by reacting the dimeric aliphatic alcohol with acrylonitrile in the presence of a catalyst; the product may subsequently be hydrogenated in the presence of a nickel or cobalt catalyst to form the corresponding bis - y - aminopropyl ether of the dimeric aliphatic alcohol. The cyanoethylation reaction may be effected under conventional conditions employing a catalyst such as sodium hydroxide; the hydrogenation may also be effected by conventional methods, preferred catalysts being nickel on kieselguhr and Raney cobalt. The dimeric aliphatic alcohol starting materials are alcohols obtainable by dimerization of unsaturated aliphatic alcohols or by reduction of dimeric fatty acids or their esters. In the example the dimeric aliphatic alcohol starting material employed has an OH number of 200-205, an iodine number of 25-40 and a saponification number of 0-5, and is obtained by dimeriza tion of tall oil fatty acid followed by hydrogenation.
Patent GB-1201928-A (GB)
Title: Process for the electrolytic production of olefin oxides
IPC: C25B3/23
Filed: 1967-10-04
Abstract: 1,201,928. Electrolytic production of olefin oxides. FARBEN FABRIKEN BAYER A.G. 4 Oct., 1967 [14 Oct., 1966], No. 45200/67. Heading C2C. [Also in Division C7] Olefin oxides are electrolytically produced from olefins, e.g. ethylene, propylene, butylene, or halogenated mono-olefins, e.g. allyl chloride, using a diaphragm cell 1 with an aqueous electrolyte containing an alkali metal halide e.g. NaCl and/or KCl, wherein the electrolytically produced halogen in the anolyte is reacted with water and an olefin or halogenated monoolefin introduced, e.g. with an inert paraffin gas through a pipe 10, into the anode compartment so as to be prevented or restricted from entering the region 5a between the anode 2 and cathode 3, preferably on the cathoderemote side (region 5b) of the anode, to form the corresponding halohydrin, which is subsequently dehydrohalogenated with the OH ions produced in the catholyte to form the olefin oxide, e.g. by passing the electrolyte through the diaphragm 4 or reacting it with the catholyte outside the cell. After separation of the olefin oxide formed, the electrolyte is recycled to the anode compartment. Slots 6 may be provided in the anode 2 to enable the electrolyte to circulate between the gas-filled and gasfree regions 5b, a of the anode compartment, the upper slot being provided with a deflector 7. The anode may be of graphite, or Ti coated with a Pt group metal on either or both sides preferably to regularly divide up the anode surface into electrolyte-permeable and-impermeable regions, the uncoated parts being protected with an oxidic layer. Instead of plates, wire gauzes or expanded metal may be used for the anodes. The cathode 3 is preferably a wire gauze of iron or steel. The diaphragm 4 may be of asbestos, polyfluorohydrocarbons, polyolefins, e.g. poly-ethylene, -propylene, -butylene, polystyrenes, polyacrylonitrile, P.V.C. or copolymers of vinyl and vinylidene chloride, in the form of porous plates or woven fabrics. Specification 1,201,380 is referred to.
Patent GB-958959-A (GB)
Title: Spectrometer
IPC: G01J3/28
Filed: 1960-05-24
Abstract: 958, 959. Generating oscillations photoelectrically. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES. May 24, 1960 [April 20, 1960], No. 45480/63. Divided out of 958,957. Heading G1A. [Also in Division G2] In the focal plane of a collimator 138 of the spectrometer having a dispersive device D is positioned a Newton ring system formed by a lens 131 and a plate 132 and an image of this ring is formed by a lens 139 in super position with the Newton ring system formed by a plate 137 and a lens 136. This plate and this lens are relatively movable so as to provide in the focal plane of the lens 139 a complementary ring system. The variable flux emanating from the output device is focused by lens 134 on a radiation detector 135 coupled to an amplifier tuned to the frequency at which the plate 137 and lens 136 are moved. In an alternative the lens 131 and plate 132 are relatively moved.
Patent GB-1405290-A (GB)
Title: Seamless knit lower body garment and method of making same
IPC: D04B9/46
Filed: 1972-09-03
Abstract: 1405290 Knitted garments PILOT RESEARCH CORP 3 Oct 1972 [4 Oct 1971] 45609/ 72 Heading A3V [Also in Division D1]  A seamless lower body garment comprises two legs 10, 11 consisting of successive complete courses, a panty portion comprising fashioned extensions 14, 15 formed of partial courses extending upwardly from each leg and fashioned front and rear gussets 16, 17 integral with these fashioned portions and having upper selvage edges B1, B2 forming the edges of a waist opening. Elastic yarn may be fed into the fabric adjacent the waist opening. A panty, panty girdle or the like may be knitted, the legs being short and hemmed or tights may be knitted.
Patent GB-1114841-A (GB)
Title: Improvements relating to micro-wave devices
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01P1/22
Filed: 1963-11-20
Abstract: 1,114,841. Waveguide switches; semiconductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 17 Nov., 1964 [20 Nov., 1963], No. 45831/83. Headings H1K and H1W. A variable-impedance semi-conductor device is insulated from the wall of a waveguide or the outer conductor of a co-axial line by means of an insulant having high thermal conductivity, e.g. beryllia or alumina. The semi-conductor element shown is of flat rectangular form and comprises a series of wafers 3 each having a low conductivity region enclosed between high conductivity regions of different types. A voltage is applied to the element across the centrally located conductor 4 and the broad walls of the waveguide. Heat is conducted away from the element by means of one or more blocks 6 of beryllia which contact the face or faces of the element and the walls of the guide 2. The conductivity may be varied to provide a short or open circuit across the guide. In a modification, the element is located across the mouth of a quarter-wavelength stub which is filled with the heat-conductive insulant. An element of cylindrical form may be located between the ends of two inner conductor sections of a co-axial line. The element is surrounded by an annulus of insulant.
Patent GB-1047764-A (GB)
Title: Fluid tight seals
IPC: F16J15/06
Filed: 1963-11-21
Abstract: 1,047,764. Seals; bolts; washers; pipe joints. C. R. FOGG, and P. S. BUNCH. Nov. 21, 1963 [Nov. 26, 1962], No. 45914/63. Headings F2B, F2G and F2H. A seal member adapted to coact with a second member in forming a seal comprises a series of projections spaced apart so as to form a series of grooves, and elastically deformable sealing material which is contained within the grooves in a quantity to completely fill the grooves and is confined under pressure by the projections as the members are tightened together. The sealing material, which may be in liquid or solid form, is preferably P.T.F.E., vinyl resin, polyethylene or lead. The projections may be formed under the head of a countersunk or hexagon-headed bolt, Figs. 1 and 3 (not shown), and on screwing the bolt into engagement with the member 16, the peaks 21 of the projections break through the thin layer of sealing material covering the peaks and contact, preferably with deformity, the face of the member 16; the grooves may be U or V-shaped in cross-section. In other embodiments, the projections may be formed on both sides of a washer, Figs. 7 to 9, and Fig. 10 (not shown), or gasket, Figs. 11 and 12 (not shown). The invention may also be applied to pipe joints and in Fig. 13 (not shown), projections are formed on the conical spigot of a spigot and socket joint. In a butt-joint, Fig. 14 (not shown), the projections may be formed on both pipe flange faces which are arranged to be clamped on each side of an intermediate washer.
Patent GB-1461381-A (GB)
Title: Water taps or faucets sorter for vegetables and the like
IPC: F16K3/04
Filed: 1972-10-06
Abstract: 1461381 Valves H & D E WATTS Ltd 3 Jan 1974 [6 Oct 1972] 46188/72 Heading F2V A tap for a washbasin, bath &c. comprises an angularly movable valve member 7 having a cavity 14 containing a seal 13 which is urged by water pressure into engagement with a surface 9 when it is in alignment with an inlet 6. The valve is opened by turning the member 7 until a kidney shaped opening 12 is opposite the inlet. A downwardly extending lug 24 on a handle 11 co-operates with an arcuate stop 23 on a bushing 19 to limit the angular movement. Lugs 20 on the bushing engage slots in the valve body 1 so that by turning the bushing through 180 degrees the direction in which the valve opens may be reversed. The bushing may be adjusted axially by a threaded collar (26, Fig. 4) on the valve body. In a further embodiment, the closure member has two seals (14, Fig. 7) and two kidney-shaped openings (12) to cooperate with a pair of inlets 6, Fig. 5) in a removable cartridge (1) having an arcuate slot co-operating with a radial screw (32) to limit angular travel. The co-operating surfaces of the closure member and seat may be spherical in each of the embodiments described. A pair of taps may be used in a mixer fitting to supply a common outlet.
Patent GB-1407173-A (GB)
Title: Pollution-free gas turbine system
IPC: F02C7/30
Filed: 1973-10-08
Abstract: 1407173 Electrostatic separation PETROLITE CORP 8 Oct 1973 [7 Dec 1972] 46807/ 73 Heading B2J [Also in Division Fl] The invention relates to a gas turbine plant which is adapted for use with untreated liquid fuel containing an alkali metal salt, the oil being treated in an electric treater so that treated oil is passed to the combustion section. The plant shown comprises compressor 12, combustion equipment 13 and turbine 14 which drives the compressor also load 17. Air is supplied to the compressor 12 by means of a pre-compressor 26, and fuel is supplied to the combustion section through inlet 15; an air preheater 19 is provided through which turbine exhaust gases may be passed to preheat the air. Fuel is supplied to the combustion section from a treater 31 which has a treated oil outlet 36, 37. Untreated oil is supplied through line 32 and fresh water through line 33 to a mixer valve 34 from which the oil/water emulsion passes to a distributor 48 in the electric treater 31. The treater comprises a pair of electrodes 49, 53 which create an electric field 46 whereby the emulsion is separated, the interface between the liquids being indicated at 43; the salt is separated and is removed with the effluent water through outlet 38. The treated oil is discharged through line 37 and pump 44 to the combustion section. In accordance with the invention the effluent water containing salt is discharged through spray nozzle 64 into the turbine exhaust gases being thereby vaporised and discharged to atmosphere. The fuel pump 44 is controlled in dependence on temperature of the exhaust gases within stack 27, the temperature being sensed at 28. The temperature of the exhaust gases is also utilised to control a valve 69 which controls flow of turbine exhaust gases through the air preheater 19. The mass flow of exhaust gases to the stack is sensed at 67, the resulting signal being utilised to control a valve 63 and thus the flow of effluent water to the injector 64. The flow of effluent water is also controlled by a valve 39 in dependence on the level of the oil/water interface 43 in the treater. An effluent water storage tank 61 is provided. Additives may be supplied to the treater 47 through line 30.
Patent GB-1324107-A (GB)
Title: Method and device for installing valve seats in cylinder heads
IPC: B25B27/00
Filed: 1970-10-02
Abstract: 1324107 Replacing valve seats; assembling force fits J PARRY 2 Oct 1970 [2 Oct 1969] 47026/70 Headings B3T and B3U A device for replacing valve seats in the cylinder heads of internal combustion engines comprises a pilot pin 42; Fig. 4, slidable in the bore of a valve guide 15, and adapted to be locked therein by a nut 51, and a cutter assembly 54, which is guided on pin 42, so as to machine the seat 68 concentric with the bore of guide 15. A new seat 72 is then inserted, this operation being carried out by an assembly which includes a flange 78, Fig. 5, secured to a sleeve 74 slidably mounted on pin 42, the sleeve being impacted so as to drive the seat home by a hammer 82. Prior to the machining of the seat the top of guide 15 is machined flush with a boss 38 of the cylinder head by a facing tool 37, Fig. 3, which is guided in the bore of the guide by a pin 28, and is rotated by a chuck 36. The initial insertion of the guide 15 is by a drive rod 16, Fig. 1, which forces the guide into the head, and up to an adjustable stop 22.
Patent GB-1518807-A (GB)
Title: Light-duty liquid dtergent compositions having enhanced skin mildnes properties
IPC: C11D1/14
Filed: 1975-11-14
Abstract: 1518807 Liquid detergent compositions PROCTER & GAMBLE CO 14 Nov 1975 [15 Nov 1974] 47051/75 Heading C5D Light-duty liquid detergent compositions, suitable for manual dish washing, comprise (A) from 8 to 35% by weight of a sulphated alkyl ethoxylate of formula R 1 -(C 2 H 4 O) n OSO 3 M wherein R, is linear alkyl or alkyl containing 25% maximum of C 1 -C 3  branching in the 2-position, R 1  having a mean chain length of 10-15 carbon atoms, at least 65% by weight of R 1  having a chain length within Œ C atoms of the mean, n having a value of 3.5 to 6À5 average, provided (a) the total weight of components in the alkyl ether in which n = 3 to 7 is not less than 60% of the total ethoxy portion, and (b) that the total weight of the components of the alkyl ether in which n = 1 or 2 is not more than 16% by weight of the ethoxy portion, and M is an alkali metal, ammonium, alkyl- or alkanolammonium cation, (B) from 1 to 5% by weight of a watersoluble primary C 10 -C 16  alkyl sulphate, and (C) water, provided that the composition contains from 0.05 to 1.0% by weight of alkaline earth metal ions, as water-soluble salt. The alkaline earth metal ions may be provided by neutralization of primary alkyl sulphuric acids to produce component (B), or may be added separately as inorganic salts. The compositions may contain C 1 -C 3  alkanols, butoxylated gelatine, amine oxide surfactants, alkyl glyceryl ether sulphonates and minor components.
Patent GB-1467707-A (GB)
Title: Process and apparatus for preparation of thin walled cylindrical vessels
IPC: B21D22/28
Filed: 1974-10-31
Abstract: 1467707 Making hollow-ware; cupping TOYO SEIKAN KAISHA Ltd 31 Oct 1974 [31 Oct 1973 18 Sept 1974] 47165/74 Headings B3A and B3Q In wall-ironing drawn cups to form containers, the effect of a lubricant supplied to the side wall of a cup is enhanced by ultrasonically vibrating the side wall. This is done by vibrating the ironing punch and/or the dies which are formed with peripheral recesses 46, Fig. 7A and Figs. 7B-7E (not shown), or with holes 46<SP>1</SP>, Fig. 7F, so as to provide separate or substantially separate segments each of which is engaged by a vibrator 43 arranged preferably with its axis substantially perpendicular to the entry angle #, Fig. 9, of the die. From four to twenty-four vibrators may be used with a variety of different horns 44, Fig. 10A-10D (not shown). Besides the usual material, black plate or composite sheet with a resin layer may be processed. A preferred apparatus, Fig. 6, comprises 2-4, e.g. 3, wall-ironing dies 24a-24c through which a drawn or redrawn cup is pushed by a punch 23 which is operated hydraulically or by cam or crank. The punch is also given ultrasonic vibrations by a horn 51 and vibrator 50 electrically connected to a vibration generator 52. Each die has a number of vibrators 43a-43c electrically connected to a generator 45. Mineral or plant oils, polysiloxanes or polyolefins which may be emulsified with water or a surface wetting agent are supplied from a source 35 to sprays 33a-33c in front of the dies and returned through a pipe 36. A cooling device may be attached to the source 35, and the punch also may be cooled through interior voids. An end doming die 37 is provided and a stripper 38 operated by an air cylinder 40 to hold the container as the punch withdraws. Necking and flanging operations now follow to complete the can body.
Patent GB-1520110-A (GB)
Title: Heat exchanger
IPC: F28D19/04
Filed: 1975-10-31
Abstract: 1520110 Rotary heat exchanger BRITISH STEEL CORP 31 Oct 1975 [31 Oct 1974] 47199/74 Heading F4K A rotary heat exchanger comprises a rotatable disc-like matrix 12, Fig. 1, in communication with passages 28 and 24 (respectively for hot waste gas and cooled waste gas) and passages 22 and 26 (respectively for cool air and heated air). Seals are provided at the end of each passage and adjacent the matrix so as to prevent leakage between the passages 26 and 28 and between the passages 22 and 24. Each seal has a straight portion 30 and an arcuate portion 32 and comprises a series of blocks 34 Fig. 3, around the perimeter of its passage, each block 34 being pneumatically urged into contact with the matrix 12. A gas for purging the matrix is introduced thereto between the seals of two adjacent passages. As shown the purging gas is introduced through a conduit 48, Fig. 4, to a space 66 between sealing blocks 34 of the seals of adjacent passages. The blocks 34 are of hard material and may comprise a ceramic, silicon carbide, silicon nitride, alumina or a high temperature resistant metal. The blocks are so shaped that each block of a seal interfits with the next in line so as to prevent gas leakage but allow limited pivoting therebetween (Figs. 5 to 7, not shown). The matrix disc may have an overall diameter of 15 ft. with circular cross-section passages 14 of ¢-inch diameter, the sealing blocks 34 at their sealing surfaces 42 being 1 inch thick. In a modification there are two pairs of gas passages opening on to each end face of the matrix.
Patent GB-1465126-A (GB)
Title: Capacitor and dielectric impregnant composition
IPC: H01B3/20
Filed: 1974-11-04
Abstract: 1465126 Dielectric composition MONSANTO CO 4 Nov 1974 [5 Nov 1973] 47534/74 Heading C5F [Also in Division H1] A liquid dielectric composition comprises (i) at least one ketone having a boiling point greater than 150 C. and having the structure wherein R 1  and R 2  have a combined carbon atom content of less than 20 and are individually alkyl, alkoxyalkyl, phenoxyalkyl, cycloalkyl, alkenyl, phenyl, thienyl, pyridyl, naphthyl, substituted phenyl or substituted naphthyl where each substituted aromatic radical contains no more than 18 carbon atoms; R 1  and R 2  can further be part of the same moiety in a cyclic ketone wherein R 1  and R 2  together provide 4 or more contiguous carbon atoms; R 3  and R 4  are each H or C 1 -C 8  alkyl; n is 0 or 1 and m is 0 or 1-6 provided that if n and m are both 1 then neither R 3  and R 4  can be H; and (ii) 0À001-8 wt. per cent of an epoxide stabilizer. The composition may also contain (iii) an ester of a carboxylic acid, or alkyl benzene, alkyl naphthalene, alkyl biphenyl, alkyl polyphenyl, an alkaryl ether, a diaryl alkane, diaryl ether or alkyl derivatives thereof. A preferred composition comprises (i) dimethyl benzophenone, (ii) 3,4 epoxycyclohexylmethyl- 3,4 - epoxycyclohexane carboxylate and (iii) isopropylbiphenyl.