baber/WOPTO huggingface dataset:
Patent GB-1515697-A (GB)
Title: Electrical accumulator
IPC: H01M10/34
Filed: 1975-10-02
Abstract: 1515697 Gas-tight accumulator OLLE LINDSTROM AB 2 Oct 1975 [3 Oct 1974] 40293/75 Heading H1B A gas-tight accumulator, when in charged condition, has a positive electrode of Ag oxide and a negative electrode of Fe; when discharged the positive electrode is Ag and the negative electrode Fe with hydroxides of Fe on its surface; the accumulator is claimed with or devoid of electrolyte; gases developed in the cell are able to contact both the negative and positive electrodes. As shown, cans 1 and 5 of Ni-plated steel coact with seal 6 of vulcanized neoprene or heat-curable epoxy resin to make the cell gas-tight; both the positive electrode 4 and negative electrode 3 may be porous, having pore size 50-100 Á and 15-20 Á respectively. On the electrode 4, the electrolyte may occupy 5-10% of the total volume, and gas 20-40%; the electrolyte may be 1-10 molar KOH, optionally containing gel-former and zincate. The ratio of number of equivalents in the negative electrode : positive electrode may be 1-0À7 : 1, and Cd may be added to the iron. The separator 7, carried on polystyrene ring 8, may be cellulose, "Cellophane" (Registered Trade Mark), nylon, polypropylene or rubber, or alternatively a 3-layer separator may be used, containing (a) ZrO 2  or MgO, (b) asbestos and (c) nylon or polypropylene in the layers.
Patent GB-989230-A (GB)
Title: Cooling system for rotary internal combustion engines, pumps and compressors
IPC: F02B55/10
Filed: 1961-11-13
Abstract: 989,230. Cooling rotary I.C. engines. CURTISS WRIGHT CORPORATION. Nov. 13, 1961 [Nov. 14, 1960], No. 40459/61. Heading F1F. An internal combustion engine of the Wankel type has coolant passages 54, 60 in the peripheral walls 20 and end walls 22, 24 of the housing respectively. The coolant, which preferably is also used as a lubricant, enters the housing at 66. Most of the coolant flows along the passage 54 past the spark plug 46 and exhaust port 50 to a manifold 70, but a small proportion flows direct to the outlet 74. At the manifold 70 the flow is split into three branches, one returning past the inlet 48, where it heats the unburnt charge, to the outlet 74 and through passages 76 (see Fig. 4), one to each end wall where the coolant is circulated as shown by the arrows before returning to the outlet 74. The distribution of the flow 13 controlled by restrictions 73 and 78 (Fig. 1) and 80 (Fig. 4). The passages 54, 60 are preferably deeper than they are wide, are located as close to the inner surface of the walls as possible, and their dividing walls taper away from the working chambers to provide more efficient heat transfer. Each of the periphera1 wall 20 and end walls 22, 24 may be made in two parts such as 56, 56 and 62, 64, respectively, the passages then being formed as grooves in the inner parts 58, 64.
Patent GB-1274103-A (GB)
Title: Improvements in manicuring appliances
IPC: A45D29/14
Filed: 1969-08-13
Abstract: 1,274,103. Manicuring appliance. ROBERT BOSCH G.m.b.H. 13 Aug., 1969 [20 Sept., 1968], No. 40459/69. Heading A5R. [Also in Divisions Fl and F4] A manicuring appliance comprises an electric motor 2 and a battery 18 in a housing having a removable front part 35, manicuring tools 48, 56 insertable in a driver 60 attached to the motor, the front part 35 of the housing being arranged to cover the driver 60 and accommodate the tools The manicuring appliance includes another electrical appliance preferably a pocket lamp or torch located in the front part 35, such that when the front part is in position only the torch can operate and when it is removed only the motor can operate. The torch and motor are controlled by a common slider switch 27. Conducting strips 25 and 26 are connected to the battery, strip 25 also being connected to the motor 2 and ending in an extension 23. Conducting strips 41, 42 extend from a bulb 38 along the front part and round a tongue 36, in parallel relationship. When the front part is attached to the housing, strip 42 contacts extension 23 and spring strip 26 is brought into contact with strip 42 when switch 27 is moved forwards, to illuminate the bulb 38. Another flat strip 21 extends from the motor substantially parallel to strip 25 so that when the front part 35 and tongue 36 are removed, switch 27 can be moved forwards and pressed downwards to bring spring strip 26 into contact with strip 21 and thus bring the motor 2 into circuit. The manicuring tools include a foldable fan 48, file 56 having three steel, riveted discs, a brush, and polishing and grinding tools (not shown). The tools have shanks 57 which are locatable in bores in a tool carrier 43 removable located in the front part 35, for storing. The tools can be held in a bore 62 of the driver 60 by means of an indentation 67 in the shanks which cooperate with a ball 64 located in a drilling 63 perpendicular to and partly intersecting with the bore 62. A rubber ring 66 closes the drilling 63.
Patent GB-1170027-A (GB)
Title: Improvements in Portable Engine Driven Chain Saws
IPC: B27B17/00
Filed: 1968-08-26
Abstract: 1,170,027. Sawing. PARTNER A.B. 26 Aug., 1968 [9 Oct., 1967], No. 40597/68. Heading B5L. [Also in Division F2] A portable engine-driven chain saw comprises a handle yoke 5 extending along a position of the circumference of the engine housing in a plane substantially at right angles to the plane of the saw chain guide bar 2, and a protective member 6 which is substantially U-shaped with side portions 7 displaceably connected with the yoke and arranged with a spacing to receive the operator's hand whereby, in use, the member is disposed in front of the operator's hand to prevent the hand moving forwardly. The member may be formed in the shape of a hood of leather, plastic or the like. The side portions are spaced apart sufficient to receive the operator's hand and are formed with hole 8 which freely permit the member to move away the yoke. A strap 9 extends between the side members and is grasped at the same time as the yoke to hold the member in position. In another embodiment, the strap 9 is replaced by a loop which is engaged by the index finger of the operator. In the event of a throw-back, the member prevents the operator's hand being removed from the yoke and touching the saw chain.
Patent GB-945428-A (GB)
Title: Esters of tricarboxylic acids
Inventor: PERRY ROBERT HOOD
IPC: C07C69/34
Filed: 1961-11-14
Abstract: Tri-esters of 1, 2, 4 butane tricarboxylic acid, particularly tributyl, triamyl, diamyl octyl, dioctyl amyl, trioctyl and tridecyl esters, are prepared by passing a mixture of ozone and oxygen through a solution of 4-vinyl-1-cyclo-hexene in a C1 to C4 primary alkyl alcohol or a C1 to C4 alkyl carboxylic acid solution until the ozone concentration in the tail gas is from 15 to 50% of the ozone concentration of the charge gas. The peroxidic product is oxidised under acid conditions to 1,2,4 butane tricarboxylic acid which is recovered and esterified with one or more C1-C15 alkanols to the triester.ALSO:Triesters of 1,2,4-butane tricarboxylic acid, particularly tributyl, triamyl, diamyl octyl, dioctyl amyl, trioctyl and tridecyl esters (see Division C2) are used as lubricants or may be added to lubricating oil fractions or to enhance the lubricating properties of high viscosity liquid hydrocarbon polymers.
Patent GB-1441505-A (GB)
Title: Cylinder head gasket
IPC: F16J15/12
Filed: 1974-09-20
Abstract: 1441505 Seals GOETZEWERKE FRIEDRICH GOETZE AG 20 Sept 1974 [20 Sept 1973] 41125/74 Heading F2B To obviate the use of loose reinforcing rings in the edge bindings of cylinder head gaskets, ring-forming parts 12-15 are joined integrally with the main portions 10 and 11, of the blank, which is stamped out from sheet metal. The parts 12-15 are folded through 180 degrees to overlie the main portions 10 and 11, before the latter are bent round the edges of openings in reinforced asbestos sheet (5, Figs. 3 and 4, not shown).
Patent GB-917161-A (GB)
Title: Improvements in or relating to the tuning of television receivers or the like
IPC: H01F21/04
Filed: 1960-12-01
Abstract: 917,161. Inductances. COLE Ltd., E. K., and TINGEY, P. A. Nov. 17, 1961 [Dec. 1, 1960], No. 42147/60. Class 38 (2). [Also in Group XXXVI] A television tuner comprises a pair of inductively coupled coils 1, 2 the effective length of which is variable by metallic sleeves 6, 7 joined at 8 so as to move together. As described, the coils are formed by depositing copper on an insulating former 3 and cutting a spiral groove through the copper. Groove width is varied so that there is always the same amount of copper beneath each sleeve even though the pitch of the groove is varied to provide different frequency coverage. To assist in tracking screw-adjusted earthed plates 9 are provided.
Patent GB-1243123-A (GB)
Title: Improvements in or relating to the manufacture of contraceptive sheaths
Inventor: RICHARDSON JOHN PHILIP
IPC: B29C65/74
Filed: 1969-08-19
Abstract: 1,243,123. Seaming non-metallic sheet material. L. R. INDUSTRIES Ltd. 14 Nov., 1969 [19 Aug., 1969], No. 41322/69. Heading B5K. [Also in Division A5] A contraceptive sheath is manufactured by cutting and welding two superimposed layers of synthetic thermoplastic film material along a line conforming to the profile of the sheath body and subsequently cutting the two layers to form the open end of the sheath. As shown, the film 1 in the form of a flattened seamless tube is fed intermittently from a supply reel 2 by a feed roller 3 on to an endless conveyer belt 5 the upper run 5A of which passes over a support plate 6. A cutting and welding tool 7 is mounted on pistons 15 for vertical reciprocation above the plate 6 and is formed with a rib 8 conforming to the profile of the sheath to be formed. The rib 8 has a cutting edge 8A and a welding face 8B spaced therefrom so that the film layers are first cut and then, immediately thereafter, welded. The rib 8 is heated by connection by leads 9 to a source of radio frequency electric current. An unheated cutter 11 is provided on the tool 7 and, during a cutting and welding operation, severs the sheath body formed in a previous welding operation. The blade 11 is cooled by the circulation of water through a line 16 to internal passages in the plate 6. In modifications, the superimposed film layers are formed by longitudinally folding a single thickness web of a plough (14), Fig. 5 (not shown), or by supplying two separate superimposed webs. Specified plastics materials are polyethylene, polypropylene, ethylene-propylene copolymers, polyethylene terephthalate, polyvinyl chloride, polyvinylidene chloride, nylon and polycarbonates.
Patent GB-899162-A (GB)
Title: Process for the preparation of pressed bodies from particulate ores or ore mixtures
IPC: C22B1/24
Filed: 1960-12-01
Abstract: Powdered ore, e.g. iron ore or roasted zinc ore, is briquetted by mixing it with a minor amount of bitumen, pressing to form briquettes and subsequently heating the pressed bodies to 250-400 DEG C., preferably in a non-oxidising atmosphere.  Heating is preferably for not more than one hour and may be carried out using cooled flue gases.  Coke may be incorporated in the mixture to be pressed.
Patent GB-1415947-A (GB)
Title: Spinning machines for producing and reeling synthetic fibres
IPC: D01D5/08
Filed: 1973-09-04
Abstract: 1415947 Spinning machine AUTOMATIK APPARATE-MASCHINENBAU H HENCH GmbH 4 Sept 1973 [11 Sept 1972] 41416/73 Heading B5B A spinning machine comprises at least one row of spinning units1 and 2 in Fig. 1, comprising one or more rows 3 of spinnerets 4 arranged in conjunction with a blowing channel 8, a spinning channel 10 and treatment, stretch and windup rolls 12 to 18 such that the row of spinnerets 3 lie in a plane transverse to the longitudinal direction of the maching X-X but parallel to the blowing channel and roller axles. Further rows of spinning units may lie alongside the first row, the drive for the spinneret melt pumps being taken across the machine in a transverse direction from the first row to each pump or set of pumps in the second and subsequent rows.
Patent GB-893528-A (GB)
Title: Improvements in and relating to the manufacture of cast members adapted to form parts of combustion chambers
IPC: B22D19/00
Filed: 1959-12-07
Abstract: Diesel engine cylinder head comprises .3,25 - 3,5%.C .2,0 - 2,5%.Si .0,4 - 0,8%.Mn .0,% max..S .0,05% max..P .0,3% max..Cr .0,3% max..Ni .Balance Fe. Inserts in the head comprise .up to 0,10%.C .0,25 - 0,5%.Mn .up to 0,05%.S .up to 0,04%.P .Balance Fe..
Patent GB-1117655-A (GB)
Title: Method and means for producing continuous foamed layers or webs
Inventor: KILLEN DENNIS
IPC: B29C44/36
Filed: 1965-09-30
Abstract: 1,117,655. Continuous discharge mixers. VIKING ENG. CO. Ltd. 13 Sept., 1966 [30 Sept., 1965]. No. 41484/65. Heading B1C. [Also in Division B5] A mixing head for the formation of a band of polyurethane foam on a conveyor belt has an outlet large enough to allow of the required flow rate at a velocity low enough to prevent air intrapment, and a restriction comprising smaller parallel tubes 6 subdividing the outlet tube 2 to ensure that the outlet is full over its whole cross-section. The conveyor belt is unconfined so that the foam can expand freely as at 5. In order to obtain uniform velocity and distribution of the mixture 4 and promote its flow especially along a horizontal conveyor the tubes may be adjusted so that they are nearer the conveyor or one side of the outlet than the other in order to submerge them in the emerging liquid; the tubes at the centre or at one side may be smaller than the others. Conveniently the outlet may be 4 inches in diameter and the smaller tubes “ inch, and positioned # inch from the conveyor. The parallel passages may be a sheet metal honeycomb structure.
Patent GB-935367-A (GB)
Title: Improvements relating to servo mechanical transmission systems
Inventor: KAY ANTHONY GILBERT
IPC: G05D3/20
Filed: 1960-12-05
Abstract: 935,367. Electric selective signalling systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 5, 1961 [Dec. 5, 1960], No. 41763/60. Class 40 (1). The invention provides an apparatus in which a digital input results in a corresponding rotation of an output shaft. Considering a four digit input 1, the first two digits are fed of a comparator 11 which is also fed by a counter 5 which repeatedly counts to 100. A sampling pulse is generated at the instant of equality. The stator of a synchro 8 is fed with A.C. of frequency equal to the repetition frequency of the counter 5. From its rotor is obtained an A.C. voltage which is sampled at 14 by the sampling pulse from the comparator. If the sampled voltage is not zero motor 15 operates to move the rotor of the synchro. Each sampling pulse causes the rotor to be moved a little so that the sampled voltage is gradually reduced to zero. Motor 15 also drives an output shaft 2. The third digit is converted by unit 13 to a bias voltage which biases at 21 the zeio level of the rotor output. The second and third digits are used to control the shaft in a similar circuit to that described above, this being done after the shaft has been positioned in accordance with the first two digits. The fourth digit provides a bias voltage in this case.
Patent GB-1107232-A (GB)
Title: Process for producing high purity aluminium nitrate solutions
IPC: C01F7/66
Filed: 1966-09-20
Abstract: A substantially iron-free solution of aluminium nitrate is produced by heating at 160-220 DEG  C. an aluminous ore with a weight ratio of Al2O3 to Fe2O3 of between above 10 : 1 and 20 : 1 with an amount of 15% to 30% aqueous nitric acid less than that theoretically required to convert all the alumina in the ore to aluminium nitrate.  The heating is carried out until the weight ratio of Al2O3 to Fe2O3 in the solution is at least 2,000 : 1 and the iron-containing precipitate is then separated from the aluminium nitrate solution. Specified aluminous ores are bauxite and clay.  The heating may be carried out under an autogenous pressure of 5.6 to 17.5 kg./cm.2, for 1/2 to 2 hours with between 60% and 85% of the theoretical amount of nitric acid.  After obtaining the purified solution, it may be concentrated to produce Al(NO3)3.9H2O crystals containing an Al2O3 to Fe2O3 weight ratio of at least 5,000 to one, which may be used to produce cellgrade alumina.
Patent GB-1093258-A (GB)
Title: Adjustable shelving
Inventor: CADWALLADER FRANCIS ARTHUR
IPC: A47B57/42
Filed: 1965-10-06
Abstract: 1,093,258. Shelving. CADWALLADER Ltd. Oct. 5, 1966 [Oct. 6, 1965], No. 42481/65. Heading A4B. A shelving assembly comprises channel section uprights 10 each with a series of vertically elongated slots 102, and shelf brackets 13 each having a hook at its rear end for engaging over the bottom edge 101 of a slot 102. A transverse plate 133 welded to the rear edge of the bracket 13 bears on the front face 101 of the upright 10 and has a depending tongue 134 engaged with a further slot 102.
Patent GB-1402497-A (GB)
Title: Double sensor
IPC: G01P15/08
Filed: 1973-09-13
Abstract: 1402497 Measuring angular velocity and deceleration TELDIX GmbH. 13 Sept 1973 [13 Sept 1972] 43141/73 Heading G1N A sensor unit for attachment to a wheel mounted on a non-rotating shaft 21 (Fig. 1) incorporates an inertia mass 7 and switch contacts 10, for indicating when the deceleration exceeds a pre-set value, and a toothed rotor 22 associated with a toothed stator 31 carrying circumferentially disposed magnets 34 and a toroidal coil 36, for measuring the angular velocity. The sensor unit has a base 3 with a cylindrical extension 20 which is screwed on to a wheelhub for rotation with the wheel. The inertia mass 7 is mounted on bearings 6 on a centre pin 5 attached to the base 3. A pin 8 protrudes from the mass 7 to rotate normally with spring contacts 10 on the base 3. If the deceleration exceeds a pre-set value the springs 10 are deflected by the pin 8 to close switch contacts and send a signal via pin 11 and leaf spring contacts 12. The stator of the angular velocity sensor comprises a tubular portion 32 extending into the shaft 21, and a disc portion 31 carrying magnets 34 and toroidal coil 36, between iron discs 37, 38, the latter having an outer toothed edge 40. The rotor 22 has a matching inner toothed edge 23 and is biased by spring 24 against housing base 3, with a groove 26 engaging a lug 25 of the base 3, so that the rotor rotates with the housing 3. Connections are made through spring contacts 12, 13 and a plug and socket arrangement 47 to leads in a cable 46.
Patent GB-931070-A (GB)
Title: Engraving apparatus
IPC: B23Q35/128
Filed: 1960-11-29
Abstract: 931,070. Copying by scanning. ANCIENNE MAISON TURQUETIL. Nov. 29, 1960 [Nov. 30, 1959 (2); Oct. 27, 1960], No. 43222/62. Divided out of 927,088. Class 40 (3). [Also in Group XXIV] In connection with a system comprising synchronously rotated cylinders carrying a master pattern to be scanned and a sheet to be engraved, a mechanical coupling arrangement effects a momentary stoppage of the engraving cylinder during each revolution for the short period, when overlapping portions of the master pattern are being scanned, and increases the velocity of rotation of the engraving cylinder relatively to that of the master cylinder throughout the remainder of each revolution so as to preserve the general synchronism of the two cylinders. The driving shaft 201 secured to the transmitting cylinder has a reduced section 203 with a centring spigot 204 engaging a recess in the reduced end 202 of the driven shaft carrying the cylinder to be engraved, and to which is secured a forked member 217 holding between its tines a shaft 216 located between the tines of a bifurcated member 209 adjustably secured by screws 208 to a flange 207 of a sleeve 206 secured to the extension 203 of the driving shaft 201. An extended portion of the shaft 216 is formed with cam rollers 214, 215 engaging the surfaces of two archimedean spiral cams 212, 213 secured to a fixed sleeve member 210 in which the shaft extension 203 is freely rotatable. The driven shaft 202 is rotated at a slightly greater speed than the driving shaft 201 by the engagement of the shaft 216 with the forked members 209, 217 secured respectively to the driving sleeve 206 and the driven extension 202 and its engagement with the surfaces of the spiral cams 212, 213, and at the end of a revolution, the rotation of the driven shaft is temporarily discontinued whilst the shaft 216 drops from the high portions of the cams 212, 213 indicated in Fig. 3 (not shown), to the lowest position indicated in Fig. 2. The scanning and engraving devices may be of the type described in Specification 927,088.
Patent GB-1448277-A (GB)
Title: Method of hydrostatic extrusion and a machine for carrying out the method
IPC: B29C48/06
Filed: 1973-09-19
Abstract: 1448277 Extruding KOBE STEEL Ltd 19 Sept 1973 [19 Sept 1972 29 June 1973] 43894/73 Heading B3P In a hydrostatic extrusion process a pressure medium is used which can be inserted into the press container in lump form so as to avoid the cooling of the billet caused when a liquid pressure medium is introduced into the container. The pressure medium may be grease such as soap type greases, complex greases, non-soap type greases, or waxes of fats or mixtures of solid lubricants such as molybdenum disulphide, graphite, lead oxide, p.t.f.e. with grease or wax. In one embodiment, Fig. 1, the lump 3 is introduced into the container 1 from a cylinder 5 by a pusher rod 7. The container is preferably heated to below the drop point of the medium and may be cooled during extrusion to keep the temperature down. The billet 11 and die assembly 8, 9 are positioned in front of the retracted container 1, Fig. 1B, which is advanced over them, Fig. 1C, and the stem 2 is then advanced to pressurize the medium 3 and effect extrusion of the billet, Fig. 1D. The lump of pressure medium 3 has an axial groove formed in it by a projecting rod (15), Fig. 2 (not shown), on the pusher plate (6) to allow air trapped between it and the stem 2 to escape. The pusher rod 7 may be hollow, Fig. 5 (not shown), to receive a mandrel (119) when hollow sections are to be extruded. In a further embodiment, Fig. 6, the lump 3 of pressure medium, the billet 11 and the die assembly 8, 9 are arranged in alignment to be received by the container 1 as it is advanced thereover. In a final embodiment, Fig. 7, the lump loading device 28 and the billet loading device 29 are provided on a slide 26 moved to bring each device successively into the centre line CL of the press. The lump 28f is loaded by an hydraulic cylinder 28a from a cylinder 28b. The billet 30 is loaded into the die 29b by an hydraulic pusher 31. The cylinder 28b is reloaded with a pressure medium lump 28f remote from the centre line CL, Fig. 9 (not shown). A pad of heat insulating cloth of silica glass fibres or rubber may be used behind the billet.