baber/WOPTO huggingface dataset:
Patent GB-1365087-A (GB)
Title: Method for preparing acrolein and acetic anhydride
IPC: C07C51/56
Filed: 1971-12-13
Abstract: 1365087 Acrolein; acetic anhydride BAYER AG 13 Dec 1971 [12 Dec 1970 3 May 1971] 57743/71 Heading C2C Acrolein and acetic anhydride are prepared by heating a diacetoxypropene to 50-300‹ C. in the presence of at least one acid and/or at least one halide of a metal of one of Groups II to VIII or of B, Si, As, Sb or Te. Liquid or gas phase may be used. The diacetoxypropene may be obtained by reacting propylene, O 2  and acetic acid in the presence of a noble metal catalyst to give allyl acetate which is then reacted in a second stage with O 2  and acetic acid in the presence of a noble metal catalyst. Alternatively propylene may be reacted with O 2  and acetic acid in the presence of a noble metal catalyst to give diacetoxy-propene and allylacetate, the latter being separated and recycled.
Patent GB-1213277-A (GB)
Title: Improvements in or relating to electroplating methods and apparatus
Inventor: HUMPAGE JOHN
IPC: H01F10/06
Filed: 1966-12-24
Abstract: 1,213,277. Magnetic structures. PLESSEY CO. Ltd. 11 Dec., 1967 [24 Dec., 1966], No. 57867/66. Heading H1H. [Also in Division C7] In making a logical device, a Be/Cu wire 1 (or a hollow cylinder or strip) is electroplated with a thin film of Ni/Fe alloy (80% Ni, 20% Fe). In order to create a preferred direction of magnetization at right angles to the wire in the electroplated film, an alternating current may be superimposed on the electrodepositing current in the wire.
Patent GB-1333317-A (GB)
Title: Substituted glutaronitriles as antijungal agents
IPC: A01N/
Filed: 1971-12-20
Abstract: 1333317 2-Halo-2-halomethyl glutaronitriles MERCK & CO Inc 20 Dec 1971 [28 Dec 1970] 59048/71 Heading C2C [Also in Division A5] 2 - Chloro - 2 - chloromethylglutaronitrile and 2 - bromo - 2 - bromomethylglutaronitrile are prepared by reacting 2-methyleneglutaronitrile with chlorine and bromine respectively.
Patent GB-1388729-A (GB)
Title: Safety cap for containers
IPC: B65D51/18
Filed: 1972-12-21
Abstract: 1388729 Safety closure TAKEDA YAKUHIN KOGYO KK 21 Dec 1972 [25 Dec 1971] 59156/72 Heading B8T A safety bottle cap of synthetic resin has a screw cap A with protrusions 6 which fit into holes 21 in a ratchet element C. An outer cover B has flexible tongue portions 11, a rein 9 which latches on to the bottom of the screw cap and toothed portions 13 which engage flexible ratchet teeth 15 in the screw direction of the screw cap A. The outer cover B is free to revolve relative to the screw cap A and ratchet element C in the unscrew direction as flexible tongue portions 11 keep the protrusions 12 clear of the holes 20 in the ratchet element C and the toothed portions 13 are shaped to ride over the flexible ratchet teeth (15), Fig. 3 (not shown). To open the bottle cap the outer cover B is pressed and turned in the unscrew direction. In doing so the portions 12 engage in the holes 20 so that the unscrewing action is transmitted from the outer cover B to the screw cap A. In a modified version the engagement between the outer cover B and the ratchet element C is provided by ratchets (12<SP>1</SP>) and (20<SP>1</SP>) respectively, Fig. 7 (not shown). An alternative form of ratchet tooth (15<SP>1</SP>) can be used Fig. 12 (not shown), and the flexible tongue pieces 11 may be replaced by a sponge or a coil spring.
Patent GB-1383300-A (GB)
Title: Interpolymers formed with unsaturated organo silicon compounds
Inventor: BOND WILLIAM C JR
IPC: C08F210/00
Filed: 1971-12-23
Abstract: 1383300 Silicon containing interpolymers COPOLYMER RUBBER & CHEMICAL CORP 23 Dec 1971 [30 Dec 1970 17 June 1971] 59970/71 Heading C3P An interpolymer is produced by the interpolymerization of (1) ethylene, (2) a monoolefinic hydrocarbon or halohydrocarbon having 3 to 20 carbon atoms, (3) a polyene and (4) an ethylenically unsaturated organosilane RnSiX 4-n  in which X is a highly hydrolysable group which is not primary or secondary amino and does not contain oxygen, R is hydrogen or an alkyl, aryl, alkaryl, arylalkyl, alicyclic or heterocyclic group which is substituted by halogen or unsubstituted and in which at least one of the R groups contains an aliphatic group having an olefinic carbon to carbon double bond and n is a number from 1 to 3, the unsaturated silane being present in the reaction mixture in an amount of from 0À01 to 1% by weight of the monomers present. The interpolymerization may be carried out in an inert organic solvent in the presence of a Ziegler catalyst. In the examples ethylene, propylene, 5-ethylidene-2-norbornene and norbornenyl trichlorosilane are reacted in hexane using ethyl aluminium sesquichloride and VOCl 3  in the presence of pyridine and butylperchlorocrotonate.
Patent GB-1151067-A (GB)
Title: Surface Effect Machines.
Inventor: BERTIN J H
IPC: B60V1/00
Filed: 1966-04-29
Abstract: 1,151,067. Air cushion vehicles; endlesstrack vehicles; propelling vehicles. BERTIN & CIE. 29 April, 1966 [30 April, 1965], No. 60088/68. Divided out of 1,151,065. Headings B7H and B7K. [Also in Division F2] An air cushion vehicle has a frame 1 and a perforated plate 7 connected to the frame by a central tie 57 and by a peripheral flexible wall 3. Air or other fluid is supplied through a pipe 11 to inflate the wall 3 and to form the cushion. The diameter of the inflated wall may be restricted by a hoop 56, but is preferably at least as great as the diameter of its peripheral connection to the frame. The tie may be a cable as shown, or an articulated rod. There may be a plurality of frames pivotally mounted on a vehicle chassis preferably each with an independent air supply. The walls may form cushions between the frame and a belt which is either endless or is wound on drums mounted at the ends of the chassis (Fig. 3, not shown) and driven to propel the vehicle.
Patent GB-1292467-A (GB)
Title: Adhesively mountable emblem and method of making the same
Inventor: LARSEN WALTER CHARLES
IPC: B60R13/00
Filed: 1969-12-15
Abstract: 1292467 Adhesive signs MINNESOTA MINING & MFG CO 15 Dec 1969 61064/69 Heading G5C [Also in Division B8] A metallic emblem 10 is applied to one face of resilient mounting material 18 which has opposed faces coated with pressure sensitive adhesive 22, 20, the second coating 20 being protected by a release liner 24. Whole or part of the periphery of the emblem has a rib 16 protruding from its underside 14 which serves to sever the mounting material 18, but not the liner 24, when the emblem is applied, e.g. by an hydraulic press 34. Short ribs 28 may be provided spaced about the periphery and extending from the rib 26 a distance equal to the thickness of the liner 24 to ensure that the liner is not cut by the rib 26. If the emblem has an aperture 30 it is bordered by a rib 32 protruding from the surface 14 to the same extent as the ribs 28. The rib 32 thus severs both the mounting material and the liner 24. After emblems have been applied to a strip of mounting material, the excess material is stripped from the liner, and the mounting material and liner removed from any apertures 30 by an air knife 40. When an emblem is to be used it is removed from the liner and mounted, e.g. on a car by the adhesive coating 20. The emblem may be diecast or moulded in zinc. The mounting material 18 may be of neoprene, vinyl or polyurethane, and the release liner of silicone coated paper. In a modification, only the two ends of each emblem are provided with ribs 26 and are applied to spaced strips of mounting material on release liners.
Patent GB-1248600-A (GB)
Title: Automobile headlights
Inventor: LEVIN ROBERT E
IPC: G02B3/04
Filed: 1968-12-30
Abstract: 1,248,600. Vehicle headlamps. G.T.E. SYLVANIA Inc. 30 Dec., 1968 [29 Dec., 1967], No. 61742/68. Heading F4R. [Also in Division G2] In an automobile headlight in which a lamp 8, Fig. 4 (not shown) is placed at the first focus of an ellipsoidal reflector 1 and an aperture 9 is placed at the second focus thereof, a lens 3 is positioned with its rear focal point F 1  coinciding with the aperture 9, the lens having a rear spherical surface 2 of radius R whose apex is the origin of coordinates x, y, spaced a distance D from F 1  the lens also having a thickness E and refractive index Á and a front surface 4 conforming to the equation:- where for and where # is given in parametric form in the following two equations in which α is a dummy variable:- These equations represent a family of curves giving an additional degree of freedom to enable the lens to effect partial control of lateral chromatic aberrations or limit the sensitivity of the lens performance to errors occurring in pressing the aspheric surface.
Patent GB-2029433-A (GB)
Title: Printing Inks
IPC: C09D4/06
Filed: 1978-07-31
Abstract: A printing ink comprises:   (a) a binder system containing (i) one or more polyethylenically unsaturated photopolymerizable monomers, and optionally one or more monoethylenically unsaturated photopolymerizable monomers; and (ii) one or more epoxy resins soluble in the photopolymerizable monomers;   (b) a photoinitiator for the photopolymerizable monomers;   (c) a cold curing catalyst for the epoxy resin; and   (d) a colorant.   The ink may be prepared from a two-part pack, one part of which contains the epoxy resin and the other the curing agent therefor, the remainder of the ingredients being present in either or both packs. In use, the ink is printed upon a substrate, especially a polyolefin substrate, exposed to the action of actinic light to convert the printed ink to a tack- free condition, and then allowed to age by the cold curing of the epoxy resin with the curing agent therefor.
Patent GB-2004269-A (GB)
Title: Accelerators or catalysts
IPC: C04B7/147
Filed: 1978-09-06
Abstract: An accelerator or catalyst for solidifying hydraulic blast furnace slag includes or consists of steel mill slag in particular LD steel mill slag, optionally containing gypsum e.g. phosphogypsum. It can be used to form hardenable mixtures containing hydraulic blast furnace slag.
Patent GB-2003717-A (GB)
Title: Roll baler with crop-cutting means
IPC: A01D90/04
Filed: 1978-09-07
Abstract: A roll baler, for agricultural stalk crops, having a cylindrical pressing chamber (1) with an inlet (9) for crop to be baled and an outlet (4) for bale discharge, has cutting means (8), for cutting up crop to be baled, provided in the path of crop to be conveyed, especially by an elevator (6), to the inlet of the pressing chamber. Cutting up of the crop before baling promotes precompacting and higher density of the bale but also facilitates breaking up the bale for use. <IMAGE>
Patent GB-2060781-A (GB)
Title: Solar energy power plant
IPC: F03D9/25
Filed: 1978-10-09
Abstract: The conversion of Solar Energy into Mechanical Energy is obtained by means of a rotary fluid motor which drives a 24 V DC alternator, the fluid being solar heated. A Vertical Windmill of double H configuration and variable geometry, drives a 2.5 KVA alternator, the solar and wind systems being assembled as a power plant. The cooling coil may be used to supply hot water. <IMAGE>
Patent GB-2011134-A (GB)
Title: Data processing system including a cache store
IPC: G06F12/0862
Filed: 1978-11-24
Abstract: A data processing system includes a main memory system, a high speed buffer cache store, a central processor unit (CPU) and an Input/Output processor (IOP) all connected to a a system bus. Apparatus in the cache store reads all information on the system bus into a first in, first out buffer comprising a plurality of registers, a write address counter, a read address counter and a means for selectively processing the information. The cache store is word oriented and further comprises a directory, a data buffer and associated control logic. The CPU requests data words by sending a main memory address of the requested data word to the cache store. If the cache store does not have the requested data word apparatus in the cache store requests the data word from the main memory system, and in addition, the apparatus requests additional data words from consecutively higher addresses. If the main memory system is busy, the cache store has apparatus to request fewer words. The cache store is organized in levels. Data from a particular portion of main memory is transferred to these levels on a first in-first out basis. Apparatus in the form of round robin logic circuitry makes the first in-first out level selection. Apparatus also exists for resetting the round robin count during the initialization procedure. Apparatus in the cache store monitors each communication between system units to determine if it is a communication from a system unit to the main memory system which will update a word location in main memory. If that word location is also stored in the cache store then the word location in the cache store will be updated in addition to the word location in main memory.
Patent GB-2015550-A (GB)
Title: Reclamation of siloxanes
IPC: C07F7/21
Filed: 1978-12-22
Abstract: A method of reclaiming siloxanes comprises dissolving siloxane polymers and mixtures thereof, such as silicone rubber vulcanizates or mixtures of silicone rubber with conventional additives and fillers, in an amine. The solution is heated to boiling with agitation; 1 to 10% by weight of alkali metal hydroxide may be added, together with quaternary ammonium and phosphonium bases. The amine is removed by distillation or pressure reduction and the low molecular weight products are removed under reduced pressure by alkali metal hydroxide catalysis. The resulting monomers may then be used as a starting material in the preparation of polysiloxanes. Fillers contained in the original mixture may be recovered and re-used.
Patent GB-2012863-A (GB)
Title: >Improvements in and Relating to Sliding Clasp Fasteners
IPC: A44B19/12
Filed: 1978-12-22
Abstract: The invention is concerned with the attachment to a textile tape 2 of a continuous row 1 of fastener members made of a plastics monofilament. Grooves 7 are pressed into the upper arms 5 of the fastener members and have steep side walls receiving looper thread loops 8 of either single needle or two needle double chain stitching 3. Pressing of the grooves also forms projections 11 adjacent the base of the grooves and extending longitudinally of the tape. The stitching straddles these projections thereby locating the fastener members securely transversely of the tape. Sockets may also be formed underneath the grooves so that each upper arm is supported from the corresponding lower arm. <IMAGE>
Patent GB-2018973-A (GB)
Title: Solar Heating Apparatus
IPC: F24S10/40
Filed: 1979-01-10
Abstract: A solar heat collector includes a metal tube (1) extending from end to end of a surrounding glass tube (2) and connected to it at each end by a hermetic seal. An expansion bellows (4) is incorporated in at least one of the tubes or of the seals. The space between the tubes is evacuated and accommodates a fin or fins (3) separate from but in thermal contact with the metal tube and thermally isolated from the glass. <IMAGE>
Patent GB-2022863-A (GB)
Title: Speed Regulator for Fuel Injection Internal Combustion Engines
IPC: G05D13/66
Filed: 1979-06-08
Abstract: In a governor in which the mass of fuel injected is corrected for variations in the temperature of the fuel a regulating lever (25), is coupled to a fuel pump control member (28) which is operable by means of a governor sleeve (17) via a guide lever 22. A force-transmitting element (31) is acted upon by a governor spring (29), against movement by the governor sleeve (17), towards a full load stop 32. Upon a rise in the fuel temperature, the full-load stop (32) is adjustable, in a direction to increase the fuel flow, by means of a transducer (48) of a correction device (39), which expands in dependence upon the fuel temperature. <IMAGE>
Patent GB-2024498-A (GB)
Title: Method of Treating Radioactive Waste Material
IPC: G21F9/30
Filed: 1979-06-22
Abstract: A method of treating radioactive waste material, particularly a radioactive sludge, comprises separating solid material from liquid material, compressing the solid material and encapsulating the solid material in a hardenable composition such as cement, bitumen or a synthetic resin. The separation and compaction stages are conveniently effected in a tube press.
Patent GB-2023391-A (GB)
Title: Fruit harvester
IPC: A01D46/28
Filed: 1979-07-19
Abstract: A fruit harvester comprises a mobile frame which straddles a row of raspberry canes and carries vertical shaking drums for shaking raspberries onto catching plates 16 mounted on a sub-frame movable relative to the main frame 11 to follow irregularities of the crop row or steering line, and a pair of soft resilient guide belts 23 and 24 abutting against the crop row and locating the catching plates 16 relative to the crop, wherein the belts 23 and 24 are driven about pulleys 31 and 29 in the opposite sense to the movement of the machine so that the crop-abutting portions of the belts remain substantially stationary relative to the crops with which they are in contact. Crop operating means other than fruit catching means may be located similarly. A single sided crop operating means may be located against a crop row. <IMAGE>
Patent GB-2028034-A (GB)
Title: Time-delay relay systems
IPC: H02H1/00
Filed: 1979-07-25
Abstract: A time relay comprises a device (1) arranged to produce an output whose frequency represents a parameter (I) to be monitored, a comparator (4, 5) responsive to the output (F) of said device for producing an output (IN) when the value of the monitored parameter exceeds a setting value, and timing means (6-9) for operating the relay 3 when the comparator output persists for a time which is a function of the value of the monitored parameter. The device 1 is suitably a Carrier Domain Magnetometer (C.D.M.) monitoring a current I and the timing means 6-9 suitably includes a digitally addressable memory (8) in which the time-current characteristic is stored (fig. 2, not shown). <IMAGE>
Patent GB-2053967-A (GB)
Title: Selective plating of pin or socket connectors
IPC: C25D5/02
Filed: 1979-07-26
Abstract: A method of selectively plating components with precious metal e.g. pin or socket connectors with gold is described so as to reduce the amount of precious metal used to get good contact when components are mated. The components 3 to be plated are placed in recesses 2 in a non- conducting medium 1 and plating solution is passed through the recesses e.g. via inlet 8 and outlet 11 forcing the components into contact with a cathode plate 6 at the bottom of the recess. A high rate and highly selective plating is achieved. <IMAGE>
Patent GB-2028426-A (GB)
Title: Pressure Relief Valve Apparatus
IPC: F16K17/04
Filed: 1979-07-27
Abstract: An isolating apparatus for installation between the annular seating surface of the inlet nozzle of a fluid pressure relief valve and the corresponding surface of the inlet flange to which the relief valve is to be connected, comprises a support body having a cylindrical portion 64 which in use extends into the interior of the inlet flange a radially extending annular flat flange portion 62 at one end and a scored reverse buckling rupture disk 68 which is seal welded to the other end of the cylindrical portion to isolate the interior of the relief valve from the interior of the vessel or system being protected. <IMAGE>
Patent GB-2030315-A (GB)
Title: Catadioptric Infra-red Lenses
IPC: G02B17/08
Filed: 1979-08-03
Abstract: An infra-red lens which achieves good correction over a flat field of view while employing all spherical surfaces and only a small number of elements of infra-red transmitting material is a catadioptric lens consisting of a front surface primary concave mirror 1 gas spaced from a Mangin secondary mirror 2 of infra- red transmitting material and having an internally convex reflecting surface R3, and at least one positive meniscus element 3 of infrared transmitting material gas spaced from and with its convex surface R5 facing the Mangin secondary mirror and located at or near a central aperture 4 in the primary mirror 1. The lens can be used as an objective lens at infra-red wavelengths, notably 3 to 5.5 microns or 8 to 14 microns. Preferably baffles 5, 6 are provided to obstruct unwanted radiation paths. <IMAGE>
Patent GB-2029114-A (GB)
Title: Dielectric lens
IPC: H01Q17/00
Filed: 1979-08-08
Abstract: A foamed plastics dielectric lens 16 having a comparatively low dielectric constant of between 1.05 and 1.5 serves to produce a plane wave of uniform phase and is provided on one surface with means 30 to control extraneous energy contributed by reflections from the face of the lens, comprising two layers of high-performance absorber material 34,36. The lens is particularly suitable for use in an antenna test facility, the amplitude characteristics in the test region being controlled by appropriate selection of the source antenna. Radiation- absorbent wall lining material is also provided in the test facility to eliminate amplitude distortion. This makes possible testing under far-field conditions in test cells of modest size. The lens can be a plano- convex or meniscus lens and can be manufactured from any plastics having a suitable dielectric constant, by either blowing the plastics in a suitable mould, or by machining from a preformed foam block. The absorber layers are loaded with conductive carbon to provide desired insertion loss and attached to the face of the lens by a coupling section 32. <IMAGE>
Patent GB-2036669-A (GB)
Title: Thrust vectoring nozzle
IPC: F02K9/84
Filed: 1979-11-30
Abstract: A thrust vectoring nozzle assembly for a propulsion unit such as a rocket engine in a missile, with the nozzle part pivotally supported on an end part of the propulsion unit which is adjacent the combustion chamber, four actuator rams (34) being provided to compensate the force which, in use, tends to separate the nozzle from the propulsion unit and also to provide control of the angular position of the nozzle, each ram being double acting and subject on one side (46) through line (48) to a force dependent on combustion chamber pressure and transmitted through a pressure amplifier (52) connected at the low pressure side (56) with the combustion chamber and at the higher pressure output side (50) with the rams, the other side (58) of the rams being connected with control means (60-68) to set the angular position of the nozzle through displacement of the ram pistons. <IMAGE>
Patent GB-2038703-A (GB)
Title: Making facemasks
IPC: B29C45/14
Filed: 1979-12-14
Abstract: A method of forming a disposable facemask for medical purposes to carry out the administration of gases to a patient provides a relatively soft, pliant surface that readily conforms to the patient's anatomical features in a gas- tight fit. The mask, as formed, comprises two parts; a semi-rigid cone backing to which there is affixed a mask cushion as by solvent bonding, adhesive bonding or mechanical means. The cushion may also be molded directly onto the cone. The cushion is produced by injection molding a thermoplastic compound of a predetermined hardness. The thermoplastic compound is first combined with a blowing agent, and the mixed compound is then fed to an injection moulding machine 18 and heated to breakdown the blowing agent to give off a gas, such as nitrogen. The heated, plasticised material is then injection molded into a mold 38 of the desired configuration. The molding conditions, such as the venting thereof, are controlled to cause formation of a small, relatively uniform cellular structure within the body of the finished cushion. <IMAGE>