baber/WOPTO huggingface dataset:
Patent GB-511175-A (GB)
Title: Improvements in automatic calculating apparatus
IPC: G06G7/34
Filed: 1937-11-11
Abstract: 511,175. Calculating-apparatus. BRITISH. THOMPSON-HOUSTON CO., Ltd. Nov. 11, 1937, No. 31030. Void. Convention date, Nov. 11, 1936. [Class 106 (i)] 'The Specification obscurely and broadly sets forth apparatus purporting to solve at least two equations with at least two unknown quantities, the application being particularly to gunnery problems. It is stated that inertia difficulties in the apparatus are avoided by usunig a valve circuit such as shown. Apparently on sighting a target the time of flight of a shell thereto is used as a first approximation to set the circuit in the valve 1. "The laws for the individual motions of the target are contained in the characteristics of the individual tubes and in the characteristics of the circuits and -can be changed and re-shaped from case to case with simplle known means." When the circuits far the two valves are balanced.the currents flowing in the circuits are stated to give the quantities sought.
Patent GB-875494-A (GB)
Title: Casting process for complicated parts
IPC: B22D15/02
Filed: 1959-09-11
Abstract: 875,494. Making cylinder heads. FORD MOTOR CO. Ltd. Sept. 11, 1959 [Oct. 4, 1958], No. 31083/59. Class 83 (2). In a method of making cylinder heads for internal combustion engines, partial castings are formed in permanent moulds and then assembled by adhesives, welding or bolts, the joint between the partial castings being planar. A cylinder head is cast in two parts, a lower casting 1 and an upper casting 2, Fig. 1, which are joined by an epoxy resin along the contacting faces 4, 5, assisted by bolts if necessary. In the lower part are the inlet channels 6 and the valve seat locations 8 and also the outlet channels and their valve seat locations. The valve stem passage 9 and water cooling channels 10 and 11 are formed partly in the upper and partly in the lower casting. The die is formed from a number of plates, a support plate 17, lateral plates 19, 20 and a cover plate 18, Fig. 3, which plates also support the cores. For example, the core 23 is slidably mounted in a recess 38 in the plate 19, and cores 29, 30 form part of the plate 18. Cores 31-34 form hollow spaces for weight reduction. Fig. 3 also shows the interfitting of three cores 23, 24 and 25 at the surfaces 26, 27, 28. A sand or wax core 35<SP>1</SP> may be used in conjunction with and supported by the permanent cores 24<SP>1</SP>, 25 and 40 as shown in Fig. 6. The relative simplicity of the casting of a part only of a cylinder head enables items such as supporting brackets for a rocker shaft or camshaft bearing supports to be cast integral with the upper part of the head.
Patent GB-260123-A (GB)
Title: Improvements in or relating to oil storage cabinets
IPC: E04H1/12
Filed: 1925-12-10
Abstract: 260,123. Smith. F. W., and Macleod, A. W. Dec. 10, 1925. Cabinets.-A protective cabinet for a barrel &c. d comprises a rectangular or circular casing a having a door h which forms part of the lower periphery of the cabinet. The door h may be hinged, sliding or portable and when open, permits the casing to be wheeled into position over the barrel &c. to be protected. Slotted pins k are provided on the inner side of the door, which engage in holes l in the casing and are looked therein from inside the cabinet by cotters j. An upper vertically sliding door b is provided giving access to the interior and is locked at e. Wheels or castors c support the casing. In order to prevent the cabinet from being lifted off the barrel &c. a cross-shaped bar or plate o is placed thereunder and secured to internal hooks p by chains n. An external lock may be provided for the door h.
Patent GB-209883-A (GB)
Title: Improvements in lace curtain machines
IPC: D04C5/02
Filed: 1922-11-15
Abstract: 209,883. Morton, W. Nov. 15, 1922. Lace; lace machines.-To vary the quality of the fabric without changing the wheel known as the " quality wheel " the jacquard is provided with, preferably, three additional needles 7 and lifting hooks 8 and the jacquard cards are punched with the corresponding additional holes. The lower end 8<a> of each hook 8 is connected by a cord, or chain 13 to one arm of a bell-crank 15 the other arm of which is connected by a cord &c- 18 to the pawl 22 which normally operates a. " quality wheel " 26 on the shaft of the take-up roller. When it is desired to produce effects such as D, Fig. 4, the wheel 26 is caused to. remain stationary at intervals by the action of the jacquard. This enables the effects D to be of high quality i.e. closely bound together by the ties E while the ties F intermediate of the effects. D are of a more open character.
Patent GB-229795-A (GB)
Title: Improvements in advertising signs, posters and the like
IPC: G09F15/02
Filed: 1923-12-12
Abstract: 229,795. Moser, W. E. Dec. 12, 1923. Maps, charts, and diagrams.-A poster, map, &c. is cut into sections, each section being provided with a protective front of celluloid or the like and a coloured backing which projects slightly when the edges are folded three times, as shown in Fig. 7. A metal plate 23. which may be of aluminium, is also folded in at the edges and retains a cardboard packing 21. Guides 11, Figs. 1 and 3, in the supporting frame receive the sections, and these guides together with the vertical projecting edges of the coloured backing of each section may represent the lines of a leaded window.
Patent GB-797845-A (GB)
Title: Method of preparing weather-proof, tinted, zinc sulphide pigments
IPC: C09C1/06
Filed: 1955-11-01
Abstract: Weatherproof, coloured, light-fast zinc sulphide pigments are prepared by mixing compounds of iron, nickel, copper and cobalt or mixtures of two or more of said compounds with the zinc sulphide pigment prior to calcining in such amounts that the metal content thereof lies between 0.1 and 2 per cent by weight based on the weight of zinc in the pigment.  The metal compounds may be added as soluble salts to the solution from which the zinc sulphide is to be precipitated or to the already precipitated zinc sulphide either as insoluble compounds or as soluble compounds from which insoluble compounds are then precipitated. Precipitation may be carried out in the presence of chlorides, i.e. from solutions of zinc chloride, zinc chloride and zinc sulphate, or zinc chloride or zinc sulphate to which is added sodium chloride.  Calcination should be carried out in the absence of oxygen and air should be excluded during the precipitation and drying stages.  The pigments may be incorporated in polyvinyl acetate emulsion paints.
Patent GB-868618-A (GB)
Title: Improvements in and apparatus for the production in a converter of steel which may have a high carbon content
IPC: C21C5/32
Filed: 1958-10-01
Abstract: 868,618. Steel manufacture. KLOCKNERHUTTENWERK HASPE A. G. Oct. 1, 1958 [Oct. 9, 1957; June 30, 1958], No. 31309/58. Class 72 A process for the production of steel in a converter comprises dephosphorizing a charge of pig-iron by blowing a gas of high oxygen content on to the surface of a primarily-formed slag and then decarbonizing the melt by an oxidizing gas at least a portion of which is blown through the metal. As shown, a converter having the usual bottom tuyeres b and windbox a is charged in the horizontal position and a highly oxidizing gas is blown on to the surface of the slag from tuyeres d, arranged in the side of the converter, until the melt is dephosphorized. The converter is then tilted towards the vertical and blown through the bottom tuyeres, the angle of tilt being such that some of the tuyeres are below the surface of the melt. The slag may be formed by blowing through the bottom tuyeres with a gas containing only enough oxygen for the formation of the slag. Specification 840,242 is referred to.
Patent GB-1470604-A (GB)
Title: Structures for resting on the bed of a body of water
IPC: E02B17/02
Filed: 1974-07-16
Abstract: 1470604 Offshore structure C G DORIS (COMPAGNIE GENERAL POUR LES DEVELOPPEMENTS OPERATIONNELS DES RICHESSES SOUS-MARINES) 16 July 1974 [25 July 1973] 31343/74 Heading E1H A structure 4 designed to support a marine platform comprises a vertical internal wall 5 defining a central cavity 8 having an open and lower end and an external wall 6 defining a space between the two walls. Partitions 7a-7l extend vertically in the space to define compartments some of which have walls extending above the internal and external walls to form hollow pillars 7a, 7e, 7i which support the platform. Base walls 9 form the bottom of at least some of the compartments. In the embodiment shown the vertical partitions are each cylindrical.
Patent GB-1003858-A (GB)
Title: Improved process for the purification of caprolactam
Filed: 1962-08-15
Abstract: A process for the purification of crude caprolactam, obtained by the nitrosation of cyclohexyl compounds containing a tertiary carbon atom such as hexahydrobenzoic acid or its functional derivatives, comprises dissolving the caprolactam in water, followed by at least one alkaline treatment of the crude caprolactam solution, distillation of the product obtained after evaporation of the water, a reduction of the distilled product, and a final oxidation of an aqueous solution of the reduced product.  In one embodiment, the process further comprises an alkaline treatment of the oxidised solution and a subsequent distillation of the product obtained after evaporation of the water.  In a second embodiment, the process comprises a basic treatment of the crude caprolactam solution followed by distillation of the product obtained after evaporation of the water, a reduction of the distilled product, a basic treatment of the reduced product and, finally, oxidation of the latter. Intermediate filtration steps may additionally be performed. Examples are given.  Specifications 904,302, 904,413 and 912,034 are referred to.
Patent GB-927645-A (GB)
Title: Improvements in or relating to disc brakes
Inventor: CHOUINGS LESLIE CYRIL
IPC: F16D55/00
Filed: 1960-09-12
Abstract: 927,645. Disc brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Sept. 5, 1961 [Sept. 12, 1960], No. 31386/60. Class 103 (1). In a spot-type disc brake wherein the brake disc is secured at its outer edge to the wheel or other member to be braked, friction pads 27 are arranged in two pairs and are slidably mounted in openings in a fixed carrier 16, two U-shaped yoke members 29, 31 each act on the outer sides of the pads on one side of the disc , and actuating means, such as piston and cylinder means 32, 39 urge the yoke members towards each other so as to apply the pads to the brake disc, the actuating means being arranged on one side of the disc and connected to the yoke member of the other side of the disc by tension members in the form of pull rods 36 passing through the central opening in the brake disc. The annular brake disc 13 is notched at its periphery to engage lugs 14 and held in position by set-screws 15 on spider arms 12 integral with wheel hub 10. When liquid under pressure acts in cylinder 32 the latter and the piston are moved in opposite directions, the piston 39 applying a thrust to the yoke member 29 and the cylinder applying a pull through the pull rods 36 to the yoke member 31 so that the friction pads are pressed simultaneously against opposite sides of the brake disc. Instead of using a piston and cylinder device for applying the brake a cam or wedge may be provided between the yoke member 29 and a member to which the pull rods 36 are attached.
Patent GB-581998-A (GB)
Title: Improvements in or relating to radio aerial systems
IPC: G01S1/02
Filed: 1942-12-11
Abstract: 581,998. Directive wireless signalling. COCKCROFT, J. D., CHICK, D. R., EASTWOOD, W. S., and OXFORD, A. J. H. Dec. 11, 1942, No. 31421/45. Divided out of 581,980. Drawings to Specification. [Class 40 (v)] A plurality of aerials are connected to spaced points on a feed line and the point of connection between the feed line and the radio apparatus is continuously varied, thus varying the effective lengths of feed line between the component aerials and the apparatus and thereby the directional characteristics of the system. Each component aerial may comprise an active dipole resonant at the signal frequency in combination with a plurality of director dipoles in front of and a reflector behind it. The invention is described with reference to the searchlight control system described in Specification 581,980. Specifications 581,996 and 581,999 also are referred to.
Patent GB-193494-A (GB)
Title: Improvements in boxes or receptacles for gas mantles of the inverted type
IPC: B65D5/02
Filed: 1921-11-24
Abstract: 193,494. Sutton, C. J. Nov. 24, 1921. Boxes made from special blanks; fittings, internal.-A box for an inverted incandescent gas mantle is produced by folding either of the blanks shown in Figs. 1 and 5, the blanks differing only in the number of sections of which the centre panel c is composed. The left-hand panel, which comprises a ledge m for covering two lugs of the mantle ring, is folded first, the right-hand one next, and the centre panel, the attached or cutout lug c on the front of which is adapted to engage and retain in position the third lug of the mantle-ring, is folded last about the hinge line a<4> to form the bottom, front, and tuck-in piece c<4>, Fig. 5, or bottom, front, outer top cover, and tuck-in piece c', Fig. 1.
Patent GB-1263712-A (GB)
Title: Battery charging systems for road vehicles
Inventor: COLEMAN GEORGE ALAN
IPC: H02J7/24
Filed: 1968-07-02
Abstract: 1,263,712. Automatic voltage control. JOSEPH LUCAS (INDUSTRIES) Ltd. June 9, 1969 [July 2, 1968], No.31453/68. Heading G3R. A battery charging system for a vehicle of the type wherein an alternator 11 supplies the battery 16 through a main rectifier 12 and supplies its field winding 28 through auxiliary rectifiers 17, is characterized by the interposition of the ignition switch 15 between members 17, 28 and by the provision of a transistor voltage regulator, whose transistors 21 and 25, 27 oscillate in an ON/OFF manner to intermittently energize the winding 28 and whose voltage sensing and comparison circuit 18, 19, 21, 22, 24 is connected across the battery 16 as shown. In addition to providing accurate sensing of the battery voltage, this connection ensures that the circuit fails safe if the connection between members 16, 18 is broken, such breakage removing the base current from transistor 25 to turn off transistors 25, 27. ON/OFF oscillation of the regulator transistors is provided by the positive feedback circuit 31, 32 and temperature compensation is obtained by choosing the resistor 22 in relation to the base-emitter characteristics of the transistor 21. The negative feedback resistor 30 may be omitted in some applications of the regulator.
Patent GB-1203845-A (GB)
Title: Silver halide developing agents
Inventor: MCBRIDE CLARENCE EDWARD
IPC: G03C1/42
Filed: 1968-07-02
Abstract: 1,203,845. Photographic silver halide developing agents. EASTMAN KODAK CO. July 2, 1968 [July 13, 1967], No.31519/68. Addition to 1,143,674. Heading G2C. [Also in Division C2C] Photographic silver halide developing solutions and photographic silver halide light-sensitive elements contain as on developing agent a bridged 5:8-dihydro-1:2 -dihydroxynaphthalene or bridged 5:6:7:8-tetrahydro-1:2-dihydroxynaphthalene, especially those of the formula: - where R and R<SP>1</SP> are each H, alkyl, aryl, -OH, alkoxy, -SO 3 H, halogen, amino, this or a heterocyclic group; R<SP>2</SP>, R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> are each H, aryl or alkyl and X is O, CH 2  or C 2 H 4  which may be substituted. When the compounds are present in the elements they also behave as antifoggants.
Patent GB-537045-A (GB)
Title: Improvements relating to fuel injectors for internal combustion engines
IPC: F02M53/04
Filed: 1939-12-05
Abstract: 537,045. Fuel injectors. HALLEWELL, &.. and BLACKSTONE & CO., Ltd. Dec. 5, 1939, No. 31542, [Class 7 (iii)]. '.I The nozzle or nozzle holder, or both, are surrounded by a closed vessel containing cooling-liquid arranged to be cooled in turn by the cooling-system of the combustion chamber. Fig. 3 shows the nozzle 5 and holder 6 surrounded by a jacket formed by two sheet-metal shells 3, 4. Packing-washers 8, 9 are provided against the inner wall 1 of the cylinder jacket, and a gland at the outer wall 2 with packing 17 or 18. Where the injector is horizontal, the outer shell 4 may be enlarged towards the outer wall 2. Distilled water may be used as the cooling agent, and an air space is left within the jacket for expansion.
Patent GB-1122939-A (GB)
Title: Purification of pivalolactone
Inventor: GAUTIER PIETER ANTOINE
IPC: C07D315/00
Filed: 1967-07-10
Abstract: Pivalolactone is purified by intimately mixing the lactone at a temperature of from 5 to 95 DEG  C. with an aqueous alkaline medium having a pH of 8 to 13.0, subjecting the mixture to phase separation, removing the aqueous phase and subsequently intimately mixing the lactone with demineralized water followed by phase separation and removal of the aqueous phase. The alkaline medium is preferably a solution of one or more oxides, hydroxides or carbonates of alkali and/or earth alkaline metals, ammonium compounds or bicarbonates of alkali metals.  The demineralized water has a pH of between 3.5 and 8.5 and comprises not more than 8 x 10-30% by weight of alkali or earth alkali metal compounds.  The use of water immiscible solvents such as aliphatic or halogenated aliphatic or aromatic hydrocarbons or aliphatic or halogenated aliphatic ethers is advantageous. The purified product can be further purified by distillation and stabilized by the addition of di- or tri-nitrophenols or the addition products of boron trihalides and Lewis bases.  Reference has been directed by the Comptroller to Specification 1,072,238.
Patent GB-262824-A (GB)
Title: Method of and means for protecting the silvering of glass
IPC: C03C17/38
Filed: 1926-12-13
Abstract: 262,824. Soc. Anon. des Manufactures des Glaces et Produits Chimiques de St.-Gobain, Chauny, et Girey. Dec. 14, 1925, [Convention date]. Omamenting.-Synthetic resin, such as a phenol formaldehyde condensation product, is dissolved in denatured ethyl alcohol having a boiling point of less than 210‹ F. and is applied to the silvered surface in the form of a layer. The glass is then heated to a temperature of about 200‹ F. to polymerize the resin, the temperature being maintained for about two hours to cause the resin to retain a certain amount of plasticity. The solution is applied to a glass plate e by means of a nozzle d connected by a tube b to a tank a, excess solution flowing into a gutter f.
Patent GB-744533-A (GB)
Title: Improved wringer
Inventor: ANDREW LESLIE WALTER
IPC: D06F45/00
Filed: 1952-12-12
Abstract: 744,533. Wringers. NORTH THAMES GAS BOARD. Jan. 14, 1954 [Dec. 12, 1952], No. 31615/52. Class 138 (2). A wringer is carried by two hinged arms 12 received in tubular sockets 4 provided in the top plate 3 of a washing-machine or washboiler, so that when the arms 12 are fully inserted they are held straight and rigid whilst, when partly withdrawn, the arms can be folded, the sockets 4 being slotted (at 5) to receive pins 13 projecting from the arms and so arranged that they engage stops which prevent complete withdrawal of the arms from the sockets unless the lower portions of the arms are tilted ralatively to the axes of the sockets as seen in Fig. 2 (not shown). The stop for each pin 13 is provided by the top plate 3. When folded the wringer may be covered by a table top.
Patent GB-881075-A (GB)
Title: Improvements in bogies for road vehicles
Inventor: CHAPLIN WILLIAM DAVID
IPC: B60G5/02
Filed: 1959-09-16
Abstract: 881,075. Arrangement of wheels and axles. CRANES (DEREHAM) Ltd. Aug. 17, 1960 [Sept. 16, 1959], No. 31637/59. Class 108(2). A road vehicle bogie has at each side of the vehicle an axle 13 of Z plan formation incorporating journals 132, 133 for transversely spaced wheels, 11 12, each axle being carried by a beam 18 connected to the frame 10 by a pivot 19 and a spring unit 21, 22. The axle is provided with brackets 14, 15 terminating in cylindrical members 141, 151 oy which it is supported for rotational movement about a longitudinal, axis in brackets 16, 17 carried by the beam 18. In a modification, the latter is of channel section and has one end connected to the frame by a laminated spring. Specification 698,529 is referred to.
Patent GB-865018-A (GB)
Title: Improvements relating to back-stop arrangements in devices having moving parts with restricted return movement
Inventor: PEDLEY DAVID
IPC: H01H50/30
Filed: 1958-10-03
Abstract: 865,018. Electromagnetic relays. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 30, 1959 [Oct. 3, 1958], No. 31687/58. Class 38 (5). [Also in Group XXXVI] A relay having a spring or gravity-biased armature 3 has a back-stop comprising two permanent magnets 9, 10 carried by the armature contact arm 4 and frame 8, respectively. In the normal position the like poles of the magnets repel each other to balance the return force of the spring 7. The magnets may alternatively be aligned or parallel bar magnets.
Patent GB-626500-A (GB)
Title: Improvements in centrifugal gas separators
IPC: B01D45/14
Filed: 1946-10-25
Abstract: 626,500. Centrifugal separators. AKTIEBOLAGET SEPARATOR. Oct. 25, 1946, No. 31729. Convention date. Nov. 2, 1945. [Class 23] [Also in Group XXVI] A centrifugal gas separator in which gas is fed tangentially into the outer part of a stationary separating chamber so that it describes in the said chamber a rotational movement about the centre axis, the gas passing through the separating chamber at increasing angular velocity and being discharged from it at its central part is characterized by the provision of a rotary screw-shaped worm or scroll with one or more threads, located in the separating chamber and intended for the separate discharge from it of particles floating in the gas. The gas to be purified is led through the volute 37, Fig. 2, and the variable aperture 6 into the separating chamber 1, the angular position of the sleeve 2 controlling the size of the aperture 6 thus determining the inlet velocity of the gas into the chamber or the throughput. The worm 7, Fig. 1, is mounted for rotation in the chamber 1 and the relative angular speeds of the gas and the worm at different radii will determine the axial directions of discharge of the gas and the separated particles at these positions. Thus if the angular speed of the gas is greater at all radii than that of the worm the gas will be displaced in one axial direction but if the speed of the gas is less than that of the worm the displacement will be in the reverse direction. As an intermediate condition the gas may be displaced in one axial direction at one radius and in the reverse direction at a different radius. Outlets 33a, 10a and 33b, 10b are provided for the cleaned gas and outlets 22a, 22b are provided for the discharge of dust particles into the sludge spaces 12a, 12b. One or more passages 17a, 17b may also be provided at different radii for the discharge of particles of different separability or size. Various other modifications are described.