baber/WOPTO huggingface dataset:
Patent GB-1142736-A (GB)
Title: Improvements in or relating to electromagnetic relays
IPC: H01H50/28
Filed: 1967-08-16
Abstract: 1,142,736. Attracted armature relays. SIEMENS, A.G. 16 Aug., 1967 [18 Aug., 1966], No. 37671/67. Heading H1N. An electromagnetic relay having an E-shaped core and yoke 1 with a coil 3c on the central limb 1a and a U-shaped armature 2 mounted on a frame spring 4 has a projection 3a, on its coil former 3, against which the armature 2 and spring 4 bear, when the relay is de-energized, and the bias and retaining force at the armature pivot are preset by bending the spring 4 through an angle α before assembly of the relay. The former 3 is accurately located on the core limb (1a) by internal projections (Fig. 1a, not shown). The legs of the U-shaped armature 2 engage conical projections on yoke limbs 1b and rock about these in operation. The spring 4 is riveted to the core and yoke 1 at 5 and is bent round the yoke to form an earth plug connector 4c.
Patent GB-1037201-A (GB)
Title: Decoder for pulse code modulation systems of communication
Inventor: REEVES ALEC HARLEY
IPC: H03M1/66
Filed: 1963-09-25
Abstract: 1,037,201. Digital-to-analogue converters. STANDARD TELEPHONES & CABLES Ltd. Sept. 25, 1963, No. 37714/63. Heading G4H. In a p.c.m. decoder for a system using a non- linear code in which a first combination of digits represents the amplitude level of the signal within an amplitude range and the remaining digits denote the range in which that amplitude appears, the incoming code group, in which the first three digits represent the amplitude level and the fourth digit denotes the range, is supplied via AND gate 1, Fig. 2, which selects the first three digits. A damped tuned circuit 2 which produces oscillations at a frequency equal to the bit rate of the incoming digits and with peak amplitudes descending in the ratio 2: 1 is shock-excited just prior to the arrival of the first digit and the oscillations are sampled by each digit via an AND gate 3. Assuming that the first three digit pulses are present they will appear in time slots 1, 2, 3, Fig. 3(A) and a second tuned circuit 4 will be excited and produce waves (b), (c), (d) of constant amplitude, the addition of these waves producing waveform (f), Fig. 3B, extending to time slot 4. At time slot 5 damping is applied so that the amplitude at time slot 6 is half that at time slot 5. An AND gate 5 is opened at time slot 4 and the fourth digit pulse, if present, is caused to open via delay network 6 a gate 7 the timing being such that when digit 4 is present, time slot 5 will be selected by gate 5 and if this digit is absent time slot 6 will be selected. Various procedures for dealing with a code involving eight amplitude ranges in which digits 4, 5, 6 are used to denote the range are also described
Patent GB-987067-A (GB)
Title: Thermoplastic joins
Inventor: DAVIES JOHN DOUGLAS HARVARD
IPC: B29C65/48
Filed: 1961-10-23
Abstract: 987,067. Seaming non-metallic sheet material. DISTILLERS CO. Ltd. Dec. 21, 1962 [Oct. 23, 1961], No. 37972/61. Heading B5K. The join between surfaces of thermoplastic synthetic resin films forming a container comprises a plurality of discontinuous perforations or depressions which are staggered so that the perforations or depressions in one row are opposite spaces in adjacent rows and the area of the perforations or depressions form at least half of the area of the join, channels between the films in the area of the join being sufficiently small that capillary action prevents liquid from passing through the join. Suitable films are polyethylene, polypropylene, polyvinyl chloride and polystyrene and may be between 0.005 and 0.010 inches thick. Apparatus for effecting the joining comprises a pair of heated, flat metal plates between which the films to be joined are compressed. One or both of the plates has a surface formed with discontinuous projections which may form a series of dots in the zone of the join or which may be arranged in a series of knurled ridges, ridges having a herringbone configuration or a combination thereof. Polystyrene film having a thicknes of 0.005 inch can be seamed at a temperature between 100‹ and 170‹ C. under a pressure of between 0.5 and 20 p.s.i. with a dwell time of between 0.5 and 20 seconds.
Patent GB-1518337-A (GB)
Title: Enzyme carrier regeneration
IPC: B01J31/00
Filed: 1975-09-16
Abstract: 1518337 Regenerating enzyme supports CORNING GLASS WORKS 16 Sept 1975 [18 Sept 1974] 37990/75 Heading C1A [Also in Divisions C2 and C3] The porous inorganic support is recovered from a spent enzyme composite by pyrolizing at 500-900C and then contacting the material with an aqueous citrate solution. The preferred support material consists of MgO-Al 2 O 3  having incorporated therein 0À84-12À0% MgO, the particles having a pore diameter of 100-1,000, average particle size of 4-200 US mesh. The citrate solution preferably consists of 0À1 M sodium citrate solution maintained at pH 6À0-10À0 and is contacted for at least 15 minutes. The process is particularly applicable to the recovery of supports from spent composites in which the absorbed enzyme is glucose isomerase. After recovery, a fresh enzyme may be absorbed on the support.
Patent GB-1285095-A (GB)
Title: Piezo-electric thickness vibrator
IPC: H03H9/17
Filed: 1970-08-06
Abstract: 1285095 Piezo-electric resonators PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 6 Aug 1970 [9 Aug 1969] 38000/70 Heading HIE A trapped energy piezo-electric thickness vibrator comprises a discal-shaped body 1 of material having a high electromechanical coefficient of coupling K with a central electroded area and which is characterized by having a maximum dimension a (where a is the effective electrode area produced by the superposition of one electrode on the other). The material is chosen such that the coefficient K (K<SP>2</SP> = (mech. energy out)/(elec. energy in)) is at least 0.15 e.g. an alkaline earth metal titanate, lead titanate or lead-titanate zirconate. The high K leads to a relatively wide frequency spacing between the series resonance and parallel resonance with the cut-off frequency f c  of the region outside the electroded region greater than but close to the parallel resonance of the fundamental of the inner region. The vibrator is made such that width of the outer annular region is at least equal to the dimension a of the effective electroded area and a is given by the relationship a< (Ad/K) where d is the thickness of body 1 and A is a constant depending upon the polarization of the body and taking the values: A=6 (thickness shear, thickness twist modes); A=4 (thickness extension, thickness compression modes); A = 30 (thickness radial shear mode). Providing the relationship for a is satisfied the anharmonic overtones are stated to lie at frequencies above the cut-off frequency f c  and so are suppressed. The vibrator shown in Fig. 9a has one electrode of larger area than the other, the effective electroded area being determined solely by the smaller electrode 2 and the inter-electrode capacity does not depend upon the precise positioning of the electrodes on the body surface. The crystal is tuned by adding material to the larger electrode at least over the extent of the effective electroded area. Electrical contact to the crystal is made by means of three circumferentially-spaced spring contacts X on electrode 12 and by one spring Y on electrode 2. The springs X contact the electrode 12 close to the edge of the crystal to minimize mechanical damping. In further embodiments (Figs. 10, 11, not shown) an alternative electrode configuration and multiple vibrators on a single crystal are disclosed.
Patent GB-327172-A (GB)
Title: Improvements in or relating to packing machinery
Inventor: GEORGE DEARSLEY
IPC: B65B35/26
Filed: 1928-12-27
Abstract: 327,172. Dearsley, G., and Molins Machine Co., Ltd. Dec. 27, 1928. Packeting by wrapping- up.-In a packing-machine, the articles 1 are fed from a vertical stack in a magazine 2 by a pair of camshaped members 6, one of which is shown. The members are shaped so that the lowermost article is fed along the table 3 at an accelerating speed to the position shown, at this point a pusher piece 4 on an endless chain 5 engages the packet at its greatest speed and moves it away. The pusher pieces pass between the cone-shaped pieces, and the portion 7 acts as a gradually descending support for the stack until one of the leading edges again commences a feeding stroke. The spindle of the member 6 may be disposed beneath the front edge of the magazine so that the removal is completely effected by this member.
Patent GB-882198-A (GB)
Title: Improvements in or relating to flexible hose
IPC: F16L11/14
Filed: 1957-12-05
Abstract: 882,198. Flexible conduits. POWER AUXIIARIES Ltd. (Dunbar Kapple Inc.). Dec. 5, 1957, No. 38321/59. Divided out of 882,196. Class 99(2). [Also in Group XXII] A method of making smooth-walled, pervious flexible tubing comprises braiding a length of tubing from groups of wires arranged side-byside in band fashion so as to produce tubing consisting of inter-woven bands of adjacent wires, and flattening the curvature of the individual wires as each wire crosses a band of parallel wires of another band by compressing the wall of the tubing between substantially flat parallel surfaces. As shown, in Fig. 6, the tubular braid liner 56 is placed on a mandrel 64 and the assembly is compressed between plates 66, the liner being shifted circumferentially by a small amount to bring each longitudinal portion of the liner under the plates in turn. The flexible hose shown in Fig. 1 comprises an annularly or helical corrugated tube 42 of sheet metal, synthetic plastic or other organic material, having stubs 46 secured to end fittings 48 mounting flanges 50, the tube being reinforced by an external sheath 52 of wire braid. Specification 787,171 also is referred to.
Patent GB-911841-A (GB)
Title: New copper complexes of monoazo dyestuffs containing halogeno-triazine groups
Inventor: BERRIE ALISTAIR HOWARD
IPC: C09B62/095
Filed: 1958-11-28
Abstract: The invention comprises copper complexes of azo dyes of formula <FORM:0911841/IV (b)/1> wherein A is a benzene radical having X in ortho-position to the azo group, B is the radical of a coupling component having Y in ortho-position to the azo-group, X is the radical -(CO)nO- where n is 0 or 1, Y is a hydroxyl, amino or mono-substituted amino group and Z is a halogen atom.  They are prepared by reacting together a cyanuric halide and a water-soluble copper complex of a monoazo compound which in its copperfree state is of formula:- <FORM:0911841/IV (b)/2> wherein A, B, X and Y are as defined above, using 1 mol of the cyanuric halide for each acylatable amino group in the monoazo compound.  The aminoazo compounds and copper complexes thereof are produced by conventional processes, including the use of nitro- or acylamino-substituted diazo components followed by reduction or hydrolysis to amino groups.  The azo group may be protected during reduction by chroming, the metal atom being later removed, e.g. by oxalic acid.  Many suitable components are specified.  The dyestuffs give a wide variety of shades on cellulose fibres using, for example, the process of Specification 797,946. In an example the copper complex of 1-phenylamino-7- (31-amino- 21-hydroxy-phenylazo) -8-naphthol-3 : 51 : 6-trisulphonic acid (obtained by reducing the dyestuff 6-nitro-2-aminophenol-4-sulphonic acid --> 1-phenylamino-8-naphthol-3 : 6-disulphonic acid with aqueous sodium sulphide and coppering the product obtained with copper sulphate in aqueous acetic acid) is dissolved in water and added to a suspension of 1 molar proportion of cyanuric chloride with addition of sodium carbonate and cooling, sodium chloride being added to precipitate the dyestuff.  Further additional components specified in examples are 4-acetylamino-2-aminoanisole, 5-nitro-2-aminophenol or -aminobenzoic acid, 4-acetylamino-2- aminophenol-6-sulphonic acid, 2-nitro-5-amino-terephthalic or -4-methoxybenzoic acids, 2 : 5-dimethoxy- 4-acetylaminoaniline, 6-acetylamino-2- aminophenol-4-sulphonic acid and 4-acetylamino-2-aminobenzoic acid; 2-acetylamino- or -phenylamino-5-naphthol- 7-sulphonic acid, 2-naphthol-3 : 6-disulphonic acid, 1-amino- or -benzoylamino-or -butylamino-8-naphthol- 3 : 6-disulphonic acid, 2-naphthol- 6 : 8-disulphonic acid, 1-naphthol- 3 : 6-disulphonic acid, 2-amino-8-naphthol- 3 : 6-disulphonic acid, 2-amino-5-naphthol- 1 : 7-disulphonic acid, 1-naphthylamine-4-sulphonic acid, 1-(41-sulphophenyl)-3-methyl-5-pyrazolone and 1-acetoacetylaminomethyl-5-pyrazolone and 1-acetoacetylamino-benzene- 4-sulphonic acid.  Specifications 838,337 and 842,933 are referred to.
Patent GB-929732-A (GB)
Title: Improvements relating to kilns
IPC: A23B4/052
Filed: 1959-11-16
Abstract: 929,732. Preserving food; smoking devices. G. SORENSEN, and N. E. KAISER. Nov. 16, 1959 [Nov. 14, 1958], No. 38776/59. Class 49. [Also in Group XI] A portable food smoking device comprises a closed smoking chamber, Fig. 5, with a sliding lid 11 and food-supporting grate 10, Fig. 3 (end view), and a separate support, Fig. 1, which is constructed to contain or fit inside the smoking chamber when the device is not being used. In use, wood flour or shavings are placed on the base 8 of the smoking chamber and heated, e.g. by a spirit burner placed in the interior of the support, to provide smoke.
Patent GB-1009048-A (GB)
Title: Latches for car doors
IPC: E05B85/26
Filed: 1961-10-31
Abstract: 1,009,048. Door latches. P. MATTHEY [trading as BOCKLENBERG & MOTTE]. Oct. 31, 1961 [Nov. 3, 1960], No. 38840/61. Heading E2A. A door latch comprises a keeper 3 mounted on a door frame and having a pin 4 which engages in a catch 1 to turn the catch into a latching position, the catch bearing 2 or catch housing having an inclined surface 5 which wedges against an inclined surface of an abutment 6 on the keeper. The abutment 6 may be lined with a resilient block or alternatively the inclined surface of the catch bearing or catch housing may be resilient.
Patent GB-958148-A (GB)
Title: Improvements in and relating to filters for liquids
IPC: B01D37/04
Filed: 1961-10-31
Abstract: 958,148. Valves. D. N. MANTON. Oct. 29, 1962 [Oct. 31, 1961], No. 38843/61. Heading F2V. [Also in Division B1] In a liquid filter comprising a helix mounted between inlet and outlet ports of a housing (see-Division B1) the spaces between the turns of the helix are adjustable so as to regulate the flow of liquid. The liquid flow is radial, preferably from the interior to the exterior of the helix. A housing 1 (Fig. 3) is provided with inlet and outlet ports 2, 3 respectively and hinged cover 8, and contains a compression spring 26 mounted at one end upon a ring integral with the housing and at the other end upon a plate 12. This plate is provided with projection 28 which slides in ring 27 of the housing and bears upon a cam 30 carried by spindle 29. Sealing ring 31 provides liquid-tight seal between spindle and housing. By turning formation 32, and thus spindle 29, and cam 30, the axial position of the projection 28, and thus the degree of extension of the spring may be altered. Concentric helices may be used.
Patent GB-339802-A (GB)
Title: Improved metal-melting furnace
IPC: F27B14/14
Filed: 1929-12-20
Abstract: 339,802. pneulec, Ltd., and Parry, H. J. Dec. 20, 1929. Crucible furnaces; discharging. - A vertical groove g is formed in the furnace lining to allowa crucible e with a side tapping spout h to be lowered into position. The spout rests on a ferrule m inserted in a bell mouth j fitted in the furnace wall and having an extreme lip f. The spout is formed with a shouldered inner end n, and is cast into the crucible. The discharge of molten metal is controlled by a tapered plug, and a cold air pipe v is directed into the mouth to freeze the metal around the plug. Heating gases may be deflected over the metal in the crucible by a lip r.
Patent GB-1539366-A (GB)
Title: Vanadium pentoxide catalyst
IPC: C07B61/00
Filed: 1977-09-19
Abstract: The ammoxidation of a compound, which contains at least one alkyl group, to give a corresponding nitrile yields very good results when a novel catalyst is used. This catalyst consists of a porous support which has a surface of more than 50 m<2>/g and a porosity of more than 0.4 cm<3>/g and which contains vanadium oxide and an alkali metal compound essentially within the pores. The ratio of the weight of vanadium oxide to support is 0.3:1 to 3:1, and the molar ratio of vanadium to alkali metal is between 2:1 and 30:1.
Patent GB-1260778-A (GB)
Title: Improvements in or relating to optical glasses with a high refractive index and a strong dispersion
IPC: C03C3/07
Filed: 1970-08-13
Abstract: 1,260,778. Optical glass compositions. ERNST LEITZ G.m.b.H. 13 Aug., 1970 [14 Aug., 1969], No. 39046/70. Heading C1M. Optical glass is fused from a mixture comprising in percentages by weight 28 to 40% of SiO 2  and GeO 2 , the proportion of GeO 2  exceeding 0% but not exceeding 20%, 14 to 40% of TiO 2 , 12 to 30% of oxides of Li, Na, K, Rb and Cs, 10 to 30% of PbO and up to 5% of B 2 O 3 , the balance, if any, consisting of other compatible constituents and impurities. Optionally the mixture may also contain up to 10% of WO 3  and up to 15% of Ta 2 O 5 . Examples are given.
Patent GB-1303145-A (GB)
IPC: G01N21/03
Filed: 1970-08-13
Abstract: 1303145 Sample cell F HOFFMANN-LAROCHE & CO AG 13 Aug 1970 [9 Sept 1969] 39134/70 Heading G2J In an optical measuring instrument in which the transmission of radiation by a liquid sample across a gauge distance is determined; the liquid sample is contained in a flexible container 1, introduced between fixed parallel windows 12, 13 and deformed by shoes 21, 22 moved up to fixed shoes 23, 24 to force the walls of the cell with intimate contact with the windows 12, 13. A wetting agent may be applied to the contact planes to assist intimate contact. Radiation is directed through diaphragm 15 and focussed by line 16 into a suitable detector.
Patent GB-902714-A (GB)
Title: Synthetic rubber vulcanisation
IPC: C08K5/38
Filed: 1960-11-15
Abstract: A butadiene copolymer is vulcanized using glycol bis-thioglycollic ester as the vulcanizing agent. Butadiene-acrylonitrile is the specified butadiene copolymer.  The ester may be reacted with the copolymer in the solid phase in the form of one of its mono-amine salts, e.g. the mono-cyclohexylamine salt, or the vulcanization may take place in an inert solvent, e.g. chloroform, in the presence of a catalyst, e.g. paramenthane, tertiary-butyl peroxide or hydroperoxide or carbon black, the latter acting as an absorbent catalyst.  Sulphur may also be present either in amount between 0,2 and 0,4 or between 2 and 4%.
Patent GB-918498-A (GB)
Title: Mercury-indium-thallium alloys
IPC: C22C7/00
Filed: 1961-11-02
Abstract: An alloy capable of remaining liquid at low temperatures and for use in thermometers and thermostats has a percentage composition within the following range:- .Hg.68.5-74 .Tl.13.1-15.5 .In.14.3-16.7 The alloy is prepared by dissolving In and Tl in Hg, cooling the resultant amalgam to not more than 2 DEG  F. above the eutectic temperature (-82 DEG  F.) and filtering to remove compositions outside the desired range.
Patent GB-927002-A (GB)
Title: Improvements in and relating to vehicle axle standstill detectors
Inventor: KERSHAW JOHN WILLIAM GREENWOOD
IPC: F16F9/28
Filed: 1960-11-16
Abstract: 927,002. Fluid-pressure brakes. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Sept. 8, 1961 [Nov. 16, 1960], No. 39299/60. Class 103 (1). [Also in Group XXXII] In a device for detecting standstill or rotation of a vehicle axle below a predetermined speed level a shaft 1, adapted to be rotated by the vehicle axle, has spaced cam means 2, 3 thereon arranged to act alternately on opposite ends of a rocker arm 18 to oscillate the arm about an intermediate rocking point, dashpot means 15 being associated with each end of the arm to inhibit return of the arm after actuation by the association cam means such that at speeds above a predetermined speed level the rocking point is displaced from its standstill position by the action of the dashpot means to actuate valve or switch means. Due to the action of the dashpot devices 14, at a speed below a predetermined level the movement of the stems 12, 13 of the dashpot devices 15 is so arranged that the centre portion of the rocker arm 18 and the stem 19 are in the raised position shown in Fig. 1 so that a valve 21 is lifted off its seat 28 and chamber 22 is connected to a source of air under pressure via inlet connection 32, apertures 30 in valve 21 and thence to outlet connection 33. At speeds above a predetermined level, a cam will leave its lever before the associated stem is able to rise to its fullest extent and thus the other stem will be depressed by its lever during the return of the first stem. This results in the rocker arm 18 being displaced downwardly with the valve stem 19 held in its lowermost position by a spring 20 and a valve 21 is seated on its valve seat 28 such that the chamber 22 is open to atmosphere via open axial passage 23 in the valve stem 19. Specification 927,001 is referred to.
Patent GB-1017108-A (GB)
Title: Improvements in or relating to radio navigation systems utilizing satellites
IPC: G01S11/10
Filed: 1962-10-17
Abstract: 1,017,108. Radio navigation. C.S.F. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Oct. 17, 1962 [Oct. 31, 1961], No. 39369/62. Heading H4D. In a radio position-finding system utilizing transmissions from an earth satellite, the latter transmits a carrier wave, frequency-stabilized by a clock 1, which is amplitude-modulated by three audio frequencies; at the receiver a clock 11, running in synchronism with clock 1, controls a local oscillator 10 to afford an output frequency equal to that of the trans. mitted carrier wave and also controls oscillator unit 43 which afford output frequencies equal to those of the transmitted modulation audio frequencies. Unit 9 compares the local " carrier-frequency " wave with the Doppler-shifted received carrier from the satellite and feeds a frequency meter 24; and phase comparators 31, 32, 33 afford distance measurement. A mathematical and graphical explanation is included, Fig. 8 (not shown).
Patent GB-1493374-A (GB)
Title: Photographic apparatus
IPC: G03D3/00
Filed: 1974-09-10
Abstract: 1493374 Photographic apparatus PHOTO-ME Ltd 4 Sept 1975 [10 Sept 1974] 39411/74 Heading G2A Photographic apparatus comprises a camera and, arranged below it, a circular array of processing tanks having a film carrier which receives exposed film from the camera and lowers it into each tank in turn, and as the carrier moves down into each tank a rod also moves down with it, the rod actuating a number of agitator blades. Fig. 2 shows one of the processing tanks 8, into which dips a carrier 9 attached to a main carrier 5, which can rotate from one tank to the next, lowering carrier 9 into each in turn. Carrier 9 supports a cut-off length 10 of exposed film. A rod 12 is so positioned that as carrier 5 descends it engages rod 12 and pushes it downwards. The rod has a flotation ball 25 at its lower end, so that as carrier 5 retracts upwards rod 12 also moves upwards again. A number of blades 13 each have one end freely resting in a groove 15 of a body 11 secured to the tank wall, and are hinged at their mid-points to constricted portions 14 of the rod 12. Thus as rod 12 moves up and down the blades 13 pivot upwards and downwards and so agitate the liquid in the tank.