baber/WOPTO huggingface dataset:
Patent GB-1486337-A (GB)
Title: Stereophonic pick-up cartridges
IPC: H04R9/12
Filed: 1974-12-19
Abstract: 1486337 Moving coil pickups SONY CORP 19 Dec 1974 [22 Dec 1973] 55034/74 Heading H4J Moving coil pickup has a stylus 4 mounted on a cantilever 3 with an arm 5 movable in response to vibration of the stylus 4 and displacing a diaphragm 16 having a coil 12 attached to its surface and located in the gap of a permanent magnet yoke assembly 11, 13, 15. As described the cantilever 3 is attached at one end to two arms 5R and 5L, Fig. 2, extending at 90 degrees relative each other, to bear on the diaphragms 16R and 16L on two transducer units to provide stereophonic output signals. The two permanent magnets of the transducer units are combined in one rectangular unit 11, Fig. 4, having two bores, 18R, 18L, with a similar rectangular plate 15 with bores 19R and 19L providing the outer polepieces of the transducers and the inner polepieces 13R and 13L being formed on a rectangular plate 13. The diaphragms 16R, 16L, are of butyl rubber, the coils 12R and 12L of 20 micron diameter aluminium wire, the permanent magnets are Samarium cobalt, and the cantilever of aluminium or carbon fibre tube supported by a suspension wire 8 and a butyl rubber damper 6.
Patent GB-1448248-A (GB)
Title: Transfer tissue electrical pulse generators particularly for ignition systems  for gas turbine engines
IPC: B41M5/10
Filed: 1973-11-28
Abstract: 1448248 Transfer tissue LAMSON INDUSTRIES Ltd 28 Nov 1973 [18 Dec 1972 12 Sept 1973] 55136/73 Heading D2B A transfer tissue for the preparation of imaging deposits in a contact electrographic duplicating process consists of a base member coated on one side with a pressure-transferable coating containing (a) a solid particulate carrier, (b) an active imaging agent in excess of that absorbed 'by the carrier and selected from non-drying polamide resins having an amine number greater than 300, safflower oil fatty acids, and oleic acid, (c) a bonding agent to releasably hold the active imaging agent and the carrier to the base member. The base member may be paper, plastics, or fabric web or sheet or tape. The particulate carrier may be a pigment and the bonding agent may be a wax. A non-drying extender e.g. spindle oil or petroleum jelly or dibutyl phthalate, which functions both as a plasticiser and active imaging agent, may be incorporated in the coating.
Patent GB-1185821-A (GB)
Title: Improvements in or relating to Optical Display Devices
Inventor: HONICK KENNETH ROBERT
IPC: G01S1/02
Filed: 1965-12-29
Abstract: 1,185,821. Aircraft instruments. MINISTER OF TECHNOLOGY. 29 March, 1967 [29 Dec., 1965], No. 55149/65. Heading B7W. [Also in Divisions G2 and G5] A mechanical-optical device for producing a variable grid pattern on a viewing screen as a flight path control aid particularly for use with helicopters or V.T.O.L. aircraft, comprises variable speed rotary means and variable reflecting or refractory means, producing a set of rays of light which are projected as movable lines on to screen 21, the line spacing being variable with altitude, the convergence or divergence of the lines indicating the aircraft altitude, and the speed at which the lines move across the screen indicating aircraft speed, a second similar system producing a second set of lines normal to the first to form the grid. Collimated light from source 4 is passed through radial slits la in disc 1, rotatable by variable speed reversible motor 2 behind the slit 6a in mask 6. The resulting spaced rays are directed at grazing incidence on to screen 21 by flexible spring-steel mirror strip 11 whose curvature is variable to the convergence &c. of the projected lines. Mirror 11 is held fixed at its centre by pin 12 while its ends slide in mirror holders 14a, 14b one or both of which are displaceable by reversible motors 17 and 20. The spacing of the spaced rays leaving slit 6a is variable by moving disc 1 on bracket 10 relative to mask 6 by means of motor 8. Compass points are arranged round the circular projection screen on which a cross indicates the aircraft position.
Patent GB-1101610-A (GB)
Title: A process for the bulk preparation of vinyl chloride polymers and copolymers
IPC: C08F14/06
Filed: 1965-12-30
Abstract: A two-stage bulk polymerization process for vinyl chloride in one piece of apparatus comprises polymerizing the monomer in a first stage with a rapid-decomposition catalyst with rapid agitation to a monomer-polymer conversion of 7 to 15% in the presence of sufficient only of a first-stage catalyst to obtain that degree of conversion, and further polymerizing the monomer in a second stage with slow agitation in the presence of a second stage catalyst having a lower rate of decomposition than the first stage catalyst under the prevailing reaction conditions. Rapid catalysts include acetyl cyclohexylsulphonyl peroxide, diisopropyl peroxydicarbonate, and di- and tri-chloracetyl peroxides. Slow catalysts include lauroyl peroxide and azobisisobutyronitrile.  Mixtures of monomers can be used.  The two catalysts can be added together at the start of the reaction.
Patent GB-1424679-A (GB)
Title: Catalytic process for the manufacture of 4,4-bipyridyls
IPC: C07D309/32
Filed: 1972-12-01
Abstract: 1424679 4,4<SP>1</SP> - Bipyridyls IMPERIAL CHEMICAL INDUSTRIES Ltd 19 Nov 1973 [1 Dec 1972] 55534/72 Addition to 1192135 Heading C2C A 4,41-bipyridyl is produced by reacting a 4,4<SP>1</SP>-bi-(4H)-pyran or a 4,4<SP>1</SP>-bipyrylene and ammonia in the vapour phase at an elevated temperature in the presence of a dehydrogenation catalyst. The product is 4,4<SP>1</SP>-bipyridyl if the unsubstituted bipyran or bipyrylene is used as starting material. Bipyridyl carrying substituents, e.g. alkyl groups, are obtained if the correspondingly substituted bipyran or bipyrylene is used. Suitable dehydrogenation catalysts are, for example, silica or alumina or mixtures thereof optionally impregnated with an oxide or a salt of a metal of variable valency, e.g. nickel nitrate.
Patent GB-1529680-A (GB)
Title: Central heating systems
IPC: F24D19/10
Filed: 1975-12-12
Abstract: 1529680 Valves BRITISH GAS CORP 12 Dec 1975 [24 Dec 1974] 55664/74 Heading F2V [Aslo in Division F4] In a central heating system comprising a radiator circuit and a calorifier circuit connected to single primary and return flow pipes 3, 4 leading to and from a boiler 1, a diverter valve 9 is provided for selectively apportioning the fluid flow between the two circuits. As shown, a thermostatic diverter valve is provided with a temperature sensor 16 which is located in the hot water storage cylinder 8 and is connected by a capillary tube 17 to a sealed compartment 18 in the diverter valve housing which includes actuator bellows 19. When the temperature in the calorifier increases, the valve member 22 closes the outlet port A to the calorifier whereby the flow from the inlet C passes through the outlet B to the radiator circuit. The valve is adjustable by means of a screwed stop member 23 which effectively varies the volume of the space 18 when rotated by a control knob 15. Alternatively, the diverter valve may be located in the return flow pipe 4, Fig. 2 (not shown), and the temperature sensor may be located in the valve body, Fig. 4 (not shown). An electric switch, Figs. 5-8 (not shown), actuated by the valve stem 22 or by a calorifier temperature sensor, may be provided in series with the boiler thermostat switch. Alternatively, unnecessary boiler cycling may be prevented by a differential pressure switch across the pump 2, Figs. 9, 10 (not shown). In a further embodiment, Fig. 13 (not shown), the hot water storage cylinder is replaced by a domestic water heat exchanger.
Patent GB-1113200-A (GB)
Title: Improvements in or relating to a.c. operated flame control devices
IPC: F23N5/12
Filed: 1966-12-14
Abstract: 1,113,200. Burner flame control devices. DANFOSS A.S. 14 Dec., 1966 [8 Jan., 1966], No. 55940/66. Heading F4T. In an A.C. operated flame control apparatus having a flame sensing probe 1 and a trigger circuit comprising a capacitor C 1  charged in dependence on ionic current, a glow discharge tube 11 and an energizing element of a relay assembly the capacitor C 1  is charged by the ionic current during the first half cycle which in turn charges a second capacitor C 2  with a time constant such that the ignition voltage of the glow tube is only attained at the beginning of the third half-cycle, and the energizing element is a controlled rectifier 14 passing in the same sense as the probe, its gate electrode being influenced by the voltage derived from ignition of the glow tube. The relay assembly consists of a D.C. relay 15 shunted by a capacitor 16.
Patent GB-1412445-A (GB)
Title: Liquid-ring gas pump
IPC: F04C19/00
Filed: 1972-12-06
Abstract: 1412445 Liquid-ring pumps SIHI GmbH ZUG 6 Dec 1972 [6 Dec 1971] 56343/72 Heading F1C In a liquid-ring gas pump, at least one dirt outlet aperture 8 is disposed in the immediate vicinity of the corner of the working chamber between its periphery and its end face and leads out of the chamber, the aperture being provided with an entrance damming or checking the liquid flow. To effect the damming, a recess 9 is provided, the recess being tapered before the aperture 8 and provided with a transverse wall 11. The liquid withdrawn through the aperture 8 contains dirt which has collected at the periphery of the pumping chamber by centrifugal action. If this liquid is to be used again or returned to the pump the dirt may be removed by filtering or precipitation. The liquid flow may be controlled by an adjustable restrictor.
Patent GB-1165769-A (GB)
Title: Improvements in and relating to Apparatus for Sampling an Atmosphere
Inventor: FITOUSSI LUCIEN
IPC: G01N1/22
Filed: 1967-12-14
Abstract: 1,165,769. Gas analysis. COMMISSARIAT A L'ENERGIE ATOMIQUE. Dec. 14, 1967 [Dec. 14, 1966], No. 56854/67. Heading G1B. Apparatus for the determination of particles present in the atmosphere in dispersed form e.g. radio-active particles comprises a box 1' containing a turbine 2' for drawing in a sample of the atmosphere through apertures 16, a filter 4' for retaining the particles and a sonic neck 5', the sample leaving by way of apertures 10', a motor 3' driving the turbine 2' at a speed corresponding continuously to the speed of sonic flow of the sampled atmosphere through the neck 5'. In this way a constant flow-rate is maintained. The radio-active particles collected in the filter 4' may be monitored by a detector 18 in a cap 17 sensitive to radiation emitted from the particles and connected to a pulse counting unit 19 and an alarm signal 20 which lights when the radiation intensity exceeds a given value. An indicator 23 may be provided to show the time during which the apparatus has been operating and the box 1' also contains batteries or accumulators at 11' for driving the motor 3'. In a simplified embodiment, the cap 17 and indicator 23 are omitted. If desired the filter 4' can be replaced by a cartridge of activated carbon for absorption of iodine or for use in detecting chemical vapours if the filter is replaced by paper impregnated with a suitable reagent.
Patent GB-1379388-A (GB)
Title: Quinoline compounds
IPC: C07D215/06
Filed: 1970-12-11
Abstract: 1379388 Dihydroquinolines AGFA-GEVAERT 8 Dec 1971 [11 Dec 1970] 57873/72 Divided out of 1379387 Heading C2C The invention comprises compounds of the general formula in which Z atoms necessary to close a naphthalene, anthracene, dibenzofuran, dibenzothiophene, benzofuran, benzothiophene, indene, xanthene or fluorene nucleus; or a nucleus of the following group, optionally substituted by alkyl or alkoxy benzene, carbazole, indole, phenothiazine, phenoxazine and quinolin-2-one. R<SP>1</SP> is a C 1 -C 4  alkyl group, and X is an alkylene group, a substituted alkylene group or an alkylene chain interrupted by a bivalent aromatic group. Particularly preferred are compounds in which Z represents atoms forming a benzene or fluorene ring system, R<SP>1</SP> being methyl and X an ethylene group. The compounds of the invention may be prepared by reacting an appropriate dihydroquinoline, or related compound modified in the aromatic ring system represented by Z, with a dihaloalkane Hal-X-Hal in the presence of a strong organic base. Many suitable dihalo compounds are listed.
Patent GB-1205719-A (GB)
Title: Pharmaceutically active derivatives of 4-phenylbicyclo[2.2.2]octane and oct-2-enecarbinols and carboxaldehydes
Inventor: ALDRICH PAUL EDWARD
IPC: C07C39/21
Filed: 1968-12-06
Abstract: 1,205,719. 4 - Phenyl - bicyclo [2.2.2] octane and oct-2-ene-1-carbinol and -carboxaldehyde derivatives. E.I. DU PONT DE NEMOURS & CO. 6 Dec., 1968 [8 Dec., 1967], No. 58118/68. Heading C2C. Novel 4 - phenyl - bicyclo [2.2.2] octane and oct-2-ene-1-carbinol and -carboxaldehyde derivatives of the general formula wherein A is a single or double bond; R 1  is a hydrogen atom or a hydroxyl, methoxy, ethoxy, propoxy or butoxy group or a group of the formula RCOO-, in which R is a C 1-12  alkyl group; and R 2  is a -CHO or -CH 2 OR 3  group, in which R 3  is a hydrogen atom or a monoacyl group derived from a pharmaceutically acceptable mono- or di-basic carboxylic acid, are prepared (a) when R 2  is a -CH 2 OH group, by reduction of a 4-phenyl-bicyclo [2.2.2] octane or oct-2-ene-1-carboxylic acid derivative of the general formula above, wherein R 2  is a -COOH or -COO alkyl group; or (b) when R 2  is a - CHO group, by treatment of a 4-phenylbicyclo [2.2.2] octane or oct-2-ene-1-carboxylic acid of the general formula above, wherein R 2  is a -COOH group with either (i) lithium metal in methylamine, followed by slowly adding ethyl alcohol and evaporating the liquid, dissolving the residue in water, and followed by acidification to precipitate out the desired carboxaldehyde, or (ii) phosphorus pentachloride, phosphoryl chloride or thionyl chloride and converting the acid chloride so obtained to the corresponding carboxaldehyde by either hydrogenating it with a catalyst, such as palladiumon-barium sulphate, in the presence of a regulator, such as quinoline-sulphur, or treating it with a mercaptan in pyridine to give a thiol ester and reducing the thiol ester in the presence of deactivated Raney nickel. 4 - Phenylbicyclo [2.2.2] oct-2-ene-1-carboxylic acid ethyl ester is prepared by reaction of acetophenone with diethylethoxymethylene malonate in ethanol in the presence of sodium ethoxide under a nitrogen atmosphere, followed by reaction of the resulting intermediate with anhydrous hydrogen fluoride and reaction of the obtained 3-carbethoxy-6-phenyl-2H-pyran-2- one with ethylene under pressure and with heating. Pharmaceutical compositions effective for preventing pregnancy in animals comprise, as active ingredient, a 4-phenyl-bicyclo [2.2.2] octane or oct-2-ene-1-carbinol of the general formula above, together with a pharmaceutically acceptable diluent or carrier, and may be administered orally, rectally or parenterally.
Patent GB-1273323-A (GB)
Title: Refrigerant condenser-compressor unit
IPC: F24F1/00
Filed: 1970-12-10
Abstract: 1,273,323. Refrigerating. AMERICAN STANDARD Inc. 10 Dec., 1970 [31 March, 1970], No. 58566/70. Heading F4H. A substantially flat condenser coil CC and a compressor CP are mounted as outdoor unit in a housing separate from the remainder of a refrigeration circuit (not shown) and the motor MO of a fan PF having horizontally mounted blades is mounted below the condenser to direct air from a lower inlet of the housing through the condenser to an upper outlet covered by a fixed or adjustable grille GR. The fan is supported in a venturi panel VN and supports a protection grille PG. The compressor is mounted in a chamber of the housing and is separated from the condenser by walls PD, TW of different shapes in different embodiments.
Patent GB-1192849-A (GB)
Title: Doctor Blade Mechanism
IPC: B41F9/10
Filed: 1968-12-11
Abstract: 1,192,849. Printing apparatus. JAMES TALCOTT Inc. 11 Dec., 1968 [15 Jan., 1968], No. 58898/68. Heading B6C. To obtain an even contact of doctor blade 21 and rotogravure printing cylinder 20 along their length, in spite of distortion imposed on printing cylinder 20 by impression cylinder 59, blade 21 is distorted by bending jaws 22, 23, between which it is held, in a direction normal to the plane of the undistorted blade 21. When the blade 21 contacts the printing cylinder 20 along their length movement together of support 24, jaws 22, 23 and blade 21 causes blade 21 to exert on printing cylinder 20 the pressure required for a smooth wiping action. The blade 21 is of steel, and when it is first inserted in jaws 22, 23 is held by magnets 30 until the jaws are closed. Bending of the jaws 22, 23 is by a jacking action of non-rotating but axially movable screw 43 as threaded worm-wheel 47 rotates on it, impelled by worm 41 and hand wheel 39. Provision of jaw-bending means at points spaced along the jaws enables connection of both symmetrical distortion of blade 21 when printing cylinder 20 is in contact with a fullwidth impression cylinder 59 and asymmetrical distortion when printing cylinder 20 is used with a half-width impression cylinder 59.
Patent GB-1261629-A (GB)
Title: A process for the manufacture of pyrocatechol derivatives
IPC: C07C43/205
Filed: 1969-12-04
Abstract: 1,261,629. Pyrocatechol derivatives. F. HOFFMANN-LA ROCHE & CO. A.G. 4 Dec., 1969 [9 Dec., 1968], No. 59234/69. Heading C2C. Pyrocatechol derivatives of formula wherein P<SP>1</SP> 1  and R<SP>1</SP> 2  each represent a C 1-6  alkyl, or C 7-14  aralkyl group or P<SP>1</SP> 1  and R<SP>1</SP> 2  together represent a C 1-6  alkylene group; and R<SP>1</SP> 3  and R<SP>1</SP> 4  each represent a C 1-6  alkyl or C 7-14  aralkyl or R<SP>1</SP> 3  and R<SP>1</SP> 4  together represent a C 1-6  alkylene group or R<SP>1</SP> 1 , R<SP>1</SP> 2 , R<SP>1</SP> 3  and R<SP>1</SP> 4  each represent a hydrogen atom, are prepared by hydrogenating a furan compound of formula (wherein R 1 -R 4  are the same as above with the exception that these radicals do not represent hydrogen atoms), or a corresponding all-cis tetrahydro derivative thereof of formula wherein R 1 , R 2 , R 3  and R 4  have the same significance as in Formula II, in the presence of a palladium oxide, palladium chloride, hydrogenated palladium chloride or oxide catalyst in an organic ether or organic ester solvent and, if desired, treating the hydrogenation product obtained with an ether hydrolysing agent. The furan compounds of Formula III used as the starting material may be prepared by reacting a compound of formula wherein R 1 , R 2 , R 3  and R 4  have the same significance as in Formula II, its antipode or racemic mixtures thereof with a strong acidic agent.
Patent GB-1275136-A (GB)
Title: Improvements in or relating to magnetisable support members
Inventor: TEILLARD PIERRE LEOPOLD
IPC: H01F7/02
Filed: 1969-12-04
Abstract: 1275136 Releasable fastenings P L TEILLARD 4 Dec 1969 [13 Dec 1968] 59360/69 Heading E2A [Also in Divisions B6 and H1] A magnetic board for retaining magnetised or magnetic objects comprises abutting or spaced narrow parallel strips of magnetic or magnetised material interposed between two sheets of flexible synthetic material, e.g. vinyl chloride, welded together along the edges. Suction pads, clamps, ribs or other securing means may be provided on the underside to engage a table, and the board may operate as a table mat, writing pad holder, or graph chart holder.
Patent GB-1274990-A (GB)
Title: Fibrillation of striated films
IPC: D01D5/42
Filed: 1970-12-23
Abstract: 1,274,990. Film fibrillation. HERCULES Inc. 23 Dec., 1970 [23 Dec., 1969], No. 61167/70. Heading B5B. Apparatus for fibrillating striated films comprises a rotatable cylindrical threaded member 1 having at least two sets of diametrically opposed helical threads, adjacent sets of threads 2, 3 being left-handed and right-handed, respectively, and having an equal number of threads which are staggered in one set with respect to the other so that the threads 4 of one set abut the grooves between the threads 5 on the other set. In a typical operation (Fig. 2) a uniaxially oriented striated film 10 is drawn by pull rolls 11 from a supply roll (not shown) between idler rolls 12 and is contacted with the rotating threaded fibrillation device 13. Preferably the fibrillation roller has two sets of threads, the total number of threads/inch being the same as the number of striations/inch on the film. The number, N, of reversals of thread direction per linear inch of film travel is given by the formula N = (RW)/V, where R is the number of reversals per revolution of the device, W is the r.p.m. of the device and V is the speed of travel of the film in inches/min. For the production of continuous filaments N is at least 10 and preferably 15, for an incompletely fibrillated film of net-like structure N is preferably less than 10. The apparatus is suitable for fibrillating any striated film material, suitable polymeric materials being polyolefins, polyethylene terephthalate, nylon, polymethyl methacrylate and polyvinylacetate. The following abridgments are included in this series since the Specifications were, through an error, not allotted to this Group. References to them will be found in the indexes to this volume.
Patent GB-2022199-A (GB)
Title: Slip clutches for timers
IPC: F16D7/04
Filed: 1978-06-03
Abstract: A mechanical clutch designed to drive up to a predetermined torque and then to slip comprises two parts - a circular ratchet (Figure 4) having a circular series of radially-inwardly facing teeth 24 and a composite spring and detent member (Figure 3) comprising a pair of open bow-shaped frameworks with protrusions 20. Drive is normally conveyed from the ratchet to the spring and detent member through protrusions 20, but when the torque rises above a predetermined level the bow- shapes distort to release the protrusions 20 from the teeth.   <IMAGE>
Patent GB-2000026-A (GB)
Title: Hair Preparations Containing Vinyl Pyrrolidone Copolymer
IPC: A61K8/00
Filed: 1978-06-05
Abstract: Hair preparations containing a copolymer of 99.5 to 45 mole per cent of vinyl pyrrolidone and 0.5 to 50 mole percent of dilower-alkylaminoalkyl acrylate or methacrylate, and method of setting and conditioning hair therewith. The acrylate is CH2 = CR<1>-COOR<2>-NR<3>R<4> where R<1> is H or CH3, R<2> is C1-20 alkylene and R<3> and R<4> are, independently, C1-4 alkyl
Patent GB-2001594-A (GB)
Title: Conveying apparatus for use in ring dumps
IPC: B65G65/28
Filed: 1978-07-13
Abstract: Conveying apparatus for use in a ring dump-for storing and/or mixing bulk material comprises a feed conveyor 3 for conveying the material to the dump 1, the conveyor 3 being pivotable about the centre 2 of the dump and being supported by a support 12 movable on a circular track 13. A discharge conveyor 4 serves to remove material from the dump and convey it to a delivery station at the centre of the dump, the conveyor 4 comprising a travelling bridge 23 which is subdivided at the track of the feed conveyor support into an outer take- up portion 30 and an inner transfer portion 31 carrying respective discharge conveyor parts. The part 31 of the travelling bridge which extends into the path 13 of movement of the feed conveyor support 12 in operation of the discharge conveyor is movable out of the path 13 to allow the feed conveyor 3 to pass. The clearing of the path of the feed conveyor support is effected by pivoting or displacing the part 31 of the travelling bridge 23 or its conveyor part. <IMAGE>