baber/WOPTO huggingface dataset:
Patent GB-1301709-A (GB)
IPC: C07C37/60
Filed: 1970-12-23
Abstract: 1301709 Phenols RHONE POULENC SA 23 Dec 1970 [30 Dec 1969] 61220/70 Heading C2C The invention comprises a process for hydroxylating a compound of the formula where R and R<SP>1</SP> are H or alkyl of 1-4 carbon atoms, wherein the aromatic compound is treated with hydrogen peroxide, in the presence of a catalytic amount of a strong acid having a pK H 2 O value below - 0À1, the content of water in the reaction medium being initially below 20% by weight of the aromatic compound/ water/hydrogen peroxide mixture.
Patent GB-1334860-A (GB)
Title: Base tube for a lamp having a pinch seal
IPC: H01K1/46
Filed: 1970-12-29
Abstract: 1334860 Caps for electric incandescent lamps EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG 29 Dec 1970 [29 Dec 1969] 61626/70 Heading H1F A base tube for a pinch-sealed lamp is formed in two separate interfitting parts, one of which, Fig. 2, comprises a clip 2 for securing a supply cable 20 and the other of which, Fig. 3, comprises a U-shaped part 11 adapted to engage over the clip 2 and a pair of slots 12 adapted to receive spring tongues 5 on the first part. The conductors which project from the pinch are welded to a tongue 3 on the first part and to the end of the cable 20 respectively. Cooling apertures 4 allow air to circulate around the pinch.
Patent GB-623783-A (GB)
Abstract: 623,783. Condensers. STANDARD TELEPHONES & CABLES, Ltd., BARNARD, R. M., WOOLTORTON, E., and BROUGHTON, J. DELVES-. Feb. 27, 1947, No. 5682. Drawings to Specification. [Class 37] An electric condenser comprising one or more sheets of metal-coated dielectric laminae is provided with a covering by dipping in a solution of vitreous enamel and subsequently firing to obtain a hard protective coating which also relieves the sheets from strain due to supporting the condenser by its lead-out wires. Sheets of mica may be used, each sheet being coated with silver on both sides and each coating extends over the end and covers the margin on the reverse side. A silver bearing paste such as that in Specification 607,853 and containing an intimate mixture of about 2 per cent by weight of lead borate is preferably used and the coated plate fired at a temperature of approximately 550‹ C. Rounded wire leads preferably of silver-plated copper are threaded through holes formed in each end margin as seen in Figs. 2, 3 and 4 (not shown). Where a stack of mica sheets is used, the ends of the stack are coated with an electrical and mechanical bonding material such as the silver bearing paste mentioned above, but having a higher lead borate content. Specification 607,846 also is referred to.
Patent GB-1287959-A (GB)
IPC: B65D88/78
Filed: 1969-12-22
Abstract: 1287959 Floating offshore-structures INSTITUT FRANCAIS DU PETROLE DES CARBUARANTS ET LUBRIFIANTS 22 Dec 1969 [24 Dec 1968] 62403/69 Heading EIH In a bottomless tank 13 for crude oil L a foating horizontal partition 1 prevents the ambient water H mingling with the oil and is furnished with flexible skirts 2 to seal the perimeter thereof and openings for oil pipes 10, 11 and a drain pipe 12. The partition may be made of polyethylene or two sheets of glass in resin laminated material with a layer of foamed polyurethane therebetween, and may be fabricated from tongued-and-grooved strips 7. To allow water 9 in suspension within the oil to escape each strip tapers inwardly and has a central row of openings 8. Each skirt may be made of polyethylene or a polyvinyl chloridepolypropylene compound and formed to the desired shape on a mold or matrix, Figs. 6 to 8 (not shown), before it is fixed to the partition. In horizontal cross-section the tank and the partition may be circular or polygonal.
Patent GB-663669-A (GB)
IPC: F23D11/30
Abstract: 663,669. Oil burners. AKTIEBOLAGET GOTAVERKEN. May 18, 1949 [May 25, 1948], No. 13258/49. Class 75(i) In an oil burner having an atomizing device located in an air supply passage 2, a flame protecting screen 8, having an unperforated portion extending from a section near to a position in front of the oil discharge opening 6, surrounds the atomizing device and has apertures 11, 12 in its forward end ahead of the oil discharge opening 6 to direct a part of the main portion of combustion air, passing outside the screen, inwardly transversely of the direction of the fuel oil jet. An outwardly directed guide 13 deflects air from the main air stream into apertures 11, 12 the rear series 11 of which are of a larger diameter and at a greater circumferential spacing than the front series 12. Combustion air is passed to a point near the oil discharge opening 6 through openings 16 and an annular aperture 9 formed between a slanting wall 10 and a protective sleeve 7 surrounding a rotary conical fuel catching member 5. The amount of fuel injected into the combustion air through orifice 6 is adjusted by the axial movement relative toeach other of the nozzle 4 and member 5. The diameter of the outlet opening in member 14 may be larger or smaller than the diameter of screen 8.
Patent GB-670542-A (GB)
Abstract: 670,542. Electrolytic polishing. ROLLSROYCE, Ltd. Aug. 22, 1950 [Aug. 22, 1949], No. 21791/49. Class 41. In a process of anodic polishing or removal of surface metal from a blade for an internalcombustion turbine engine a supplementary anode is provided adjacent to the blade tip whereby the amount of metal removed from the blade tip is reduced. In the arrangement shown, blades 7 are held in a vice-shaped member 6 suspended by hooks 5 from a bar 3 which. is connected to the positive terminal of a source of current. Two steel plates 9 are suspended from bars 4 connected to the negative terminal. A metal bar 11 which forms a supplementary anode is also suspended from the bar 3. Those portions of the bar which are not immediately adjacent to the tips of the blades 7 are insulated from the electrolyte by a suitable wax. For polishing blades of nickel chromium alloy the electrolyte may be composed of 52 per cent phosphoric acid, 22 per cent sulphuric acid, and 26 per cent water, the current density used being from 4 to 10 amps. per square inch.
Patent GB-674116-A (GB)
Abstract: 674,116. Electric analogue calculating systems. INTERCHEMICAL CORPORATION. Aug. 5, 1947 [July 8, 1944], No. 2418/51. Divided out of 674,025. Class 37. Computing apparatus for obtaining the product of a number of factors comprises means for generating a number of series of rectangular waves at irrationally related frequencies and for making the effective length of the impulses in each series correspond to one of the factors to be multiplied, and means for measuring the percentage of time during which impulses occur simultaneously in all the series. The system is based on the theory that if an event a occurs for 1/n of the time and that if an event b occurs for 1/m. of the time then the events a, b will occur simultaneously during 1/m.n of the time. In the circuit shown in Fig. 1 a voltage c corresponding to one of the factors to be multiplied is fed to the grid of a valve v of stage 3 which is also fed with triangular waves of a predetermined frequency from a stage 2 of the circuit, the valve v of stage 3 being biased to generate a high-frequency oscillation when the sum of the voltage c and that of the triangular wave exceed a predetermined value. The modulated or interrupted high-frequency is applied to a detector (stage 4) feeding a power amplifier (stage 5) whose output is in the form of a train of square waves in which the effective or proportionate length of the positive-going impulses is representative of the quantity c. An inverter stage, such as stage 6, is employed to derive square waves corresponding to the quantity or factor 1-c. The different series of square waves, representative of the respective factors and generated at different and irrationally related frequencies, are applied simultaneously to a valve V, Fig. 2, biased to be cut off unless the positive parts of the waves are present simultaneously on its grid. A voltage corresponding to a fixed factor Xcm is applied to the screen grid of the valve V. The output of the valve V is applied by a load resistance L to a filter R-C whose time constant is sufficiently long to filter out the various frequencies and the beat frequencies, are sufficiently short to allow for the rate of successive calculating operations. The D.C. voltage produced at X<SP>1</SP> corresponding to the average plate current is the measure of the product of the quantities fed into the system.
Patent GB-2011343-A (GB)
Title: Silage Cutter with Stock Bin
IPC: A01F25/20
Filed: 1978-06-23
Abstract: In a silage cutter with stock bin 1 for hitching to the three-point linkage with hydraulic power lift and P.T.O. shaft of a tractor by an arm 13 with roller cutter and a vertically-adjustable stock bin 1, the arm is horizontally and vertically slewable at right angles to the direction of travel of the tractor, and preferably independently of the stock bin. The roller cutter is preferably narrower than the associated stock bin. The stock bin may be pivoted on supporting bars 3 at the end thereof facing the tractor and is preferably retained in its filling position by a pawl 63 with the help of a latch plate 66, whereby through release of the pawl, the stock bin can be lowered to the bottom of a silo with its discharge end turned to the roller cutter. <IMAGE>
Patent GB-2028189-A (GB)
Title: Multiple spindle inclined drilling machine
IPC: B23B39/16
Filed: 1978-08-14
Abstract: A multiple spindle inclined drilling machine includes a base 13 having a bed 15 inclined at an acute angle and with guideways 53 upon said bed. A slide 51 is reciprocally mounted upon said ways and is connected to a piston rod 41 of a cylinder assembly 42 mounted upon said base for effecting reciprocal movements thereof. A multiple spindle head 47 is mounted upon said slide. An apertured fixture adapter 89 is mounted upon said bed and lies in a plane at right angles thereto. A rotative drive mechanism 27 is mounted upon said bed and has a variable speed output shaft 37. A plurality of drive spindles 85 with individually mounted drills 87 is adjustably supported upon and within said head and connected to said drive mechanism. An upwardly and rearwardly inclined fixture mounting plate 93 spans and is secured to said adapter for supporting a workpiece mounting fixture. A series of variably located drill guide bushings 97 are nested within said fixture and arranged in a predetermined pattern for receiving the drills upon the plurality of prelocated spindles. <IMAGE>
Patent GB-2028274-A (GB)
Title: Crosscut sampler for pneumatic conveying systems
IPC: G01N1/20
Filed: 1978-08-21
Abstract: An apparatus for drawing off a representative sample of granular or particulate material flowing along a conveying pipe of a pneumatic conveying system includes a sample collecting head (27). In order to assist in obtaining a truly representative sample, the collecting head (27) is provided with a closure (42) which is movable to open and close the entry slot (41) of the sample collecting head. The sample collecting head (27) is movable across the entire width of the flow passage and in the end positions of its movement is clear of the flow passage. <IMAGE>
Patent GB-2014190-A (GB)
Title: Carbothermic reduction of alumina
IPC: C22B21/02
Filed: 1978-11-17
Abstract: A process for the production of aluminium in two steps:  2Al2O3 + 9C = Al4C3 + 6CO (ii> and  Al4C3 + Al2O3 = 6Al + 3CO (iii) Reaction (ii) takes place in a materials addition chamber 1 and reaction (iii) in a high temperature chamber 2. Slag is circulated between the chambers via conduits 3, 4 by the action of gas generated in reaction (iii) in the conduits. Aluminium production in the high temperature chamber and slag circulation rate are independently controllable by the provision of independent heat sources. <IMAGE>
Patent GB-2035288-A (GB)
Title: A method of coating articles with an abrasion-resistant porcelain-enamel and articles produced by the method
IPC: C23D5/00
Filed: 1978-11-30
Abstract: In order to provide on a metal substrate a coating having a degree of hardness up to 7 and even higher according to MOHS or DIN 51 150, class A-AA with the same energy as the conventional porcelain-enamel- and glaze method the following components in percentages by weight     from 10% to 70% Al2O3 Aluminium oxide     from 10% to 30% SiO2 Silicon oxide       up to 5% V2O5 Vanadium pentoxide       up to 5% P2O5 Phosphorus pentoxide       up to 12% R2O Alkali metal oxide       up to 20% ZrO2 Zirconium oxide       up to 20% TiO2 Titanium oxide are sintered together at temperatures between 800 DEG C and 1000 DEG C, cooled- down,the glassy solidified mass is milled to desired fineness, blended with porcelain enamel or glaze frits up to 50% by weight, proper mill additions being added, the substrate is dipped or flowed in the slip or slip is sprayed thereon, this coating is then fired at a temperature, depending on the substrate material, between 550 DEG  and 1200 DEG C.
Patent GB-2041033-A (GB)
Title: Stilts for Use with Underground Mine Supports
IPC: E21D15/22
Filed: 1978-12-21
Abstract: A stilt for use with an underground mine roof support (1) comprises an open ended box section (3) and two elongate deformable elements (5) each connected to the box by bolts (7) and connected together by a bolt (13) for engagement by the roof support (1). Each element (5) comprises an endless band having at least two vertically spaced energy absorbing portions (18, 19) which absorb the energy by "rolling" downwards within the box section (3). Slots (9) enable the initial height of the stilt to be adjusted. The yield load can be varied by using endless elements (5) of different thicknesses. <IMAGE>
Patent GB-2041105-A (GB)
Title: A sealed support bearing
IPC: B62D5/22
Filed: 1979-01-23
Abstract: A sealed support bearing for a shaft of a power steering unit of a vehicle comprises a cylindrical housing 20 with a cylindrical bronze bearing 22 coaxially located in it. One side of the bearing is open to the operating oil from the steering unit itself, but passage of this oil right through the bearing is restricted or prevented by a coaxially arranged natural or synthetic rubber sealing ring 24 located on, that side of the bearing remote from the main body of the steering unit itself. A scraper ring 28 on the side of the sealing ring remote from the bearing prevents ingress of dirt and moisture to the bearing. In this way the operating oil of the steering unit is used to lubricate the bearing thereby to increase its life and in the end reduce leakage of the oil. <IMAGE>
Patent GB-2043512-A (GB)
Title: Continuous flash butt-welding
IPC: B23K11/04
Filed: 1979-02-13
Abstract: Workpieces are brought together by rectilinearly oscillating at least one of them along the line of bringing them together, with the amplitude in the movement of the one workpiece towards the other workpiece greater than that in the opposite direction, and voltage is applied during the bringing together for flashing. After flashing an upset force is applied. An hydraulic drive to generate the oscillatory motion comprises a means (8) for feeding hydraulic fluid alternately into two chambers (6 and 7) of a hydraulic cylinder (2) through two hydraulic lines (9 and 10) serving alternately as respective inlet and outlet. The lines are interconnected by two hydraulic conduits (19 and 20), each incorporating a throttle (21 and 22 respectively) and a check valve (23 and 24 respectively). The throttles (21 and 22) are adjusted so that the hydraulic fluid volume admitted into the hydraulic cylinder (2) to move the workpiece towards the other workpiece is greater than the hydraulic fluid volume admitted to move the same workpiece in the opposite direction.   <IMAGE>
Patent GB-2014574-A (GB)
Title: Lactam Compounds
IPC: C07D499/88
Filed: 1979-02-15
Abstract: beta -Lactam compounds of the formulae   <IMAGE> are disclosed in which R represents a carboxyl or esterified carboxyl group and X represents an sulphonyloxy group. Processes for preparing the compounds and intermediates of use in their preparation are also disclosed. The compounds are of value in the preparation of further  beta -lactam compounds, for example of formulae   <IMAGE> in which R is a carboxyl or esterified carboxyl group, and R<1> is the residue of a sulphur nucleophile. Compounds of formula (I) are also disclosed, together with processes for their preparation, pharmaceutical compositions containing them and intermediates of use in their preparation. The compounds of formula (I) are of value as antibiotics or as  beta -lactamase inhibitors.
Patent GB-2507235-A (GB)
Title: Ships radar
Inventor: BARTON DAVID K
IPC: F41G7/22
Filed: 1979-02-16
Abstract: A ships radar for use on a naval vessel is utilized to combine search, navigational and tracking functions. Targets are sensed within a spherical coordinate system utilizing a phased array antenna 201, rotated continuously in azimuth by a motor 213 and electronically steered in elevation, and a pulse radar with returns processed by a monopulse receiver. Each pulse consists of a first part at a first frequency fo and a second part at a second frequency fo + 400 Mhz. A program changes fo stepwise, (e.g. over the range 8620 to 8980 MHz by 40 MHz increments), changes the relative pulse lengths of the said first and second parts, and staggers the pulse repetition frequency. These measures ensure substantial reduction of interference effects arising from reflections from the surface of the sea and the actions of the sea upon the ship.
Patent GB-2019192-A (GB)
Title: Dehydration of organic tissue
IPC: A23B7/06
Filed: 1979-02-19
Abstract: Organic tissue is contacted with an aqueous solution of carbon dioxide or a precursor thereof, prior to dehydration by the application of heat and/or reduced pressure, thereby generating gaseous carbon dioxide in the tissue and inhibiting shrinkage during drying.
Patent GB-2014911-A (GB)
Title: Ink Jet printer
IPC: B41J2/175
Filed: 1979-02-20
Abstract: In an ink jet printer having at least one printing head 20,21,22,23 mounted on a carriage 9, each printing head 20,21,22,23 is connected to a stationary ink container 8 through a respective flexible conduit 16,17,18,19 which is substantially straight at least when the carriage 9 is in each of its extreme positions. The conduits are so positioned that, during the movement of the printing means, they can be maintained as closely as possible to the vertical, thereby minimising the effect on the flow of ink through the conduits due to the movement of the carriage. <IMAGE>
Patent GB-2016502-A (GB)
Title: Novel chemical compounds
IPC: G03C8/10
Filed: 1979-02-26
Abstract: The preparation of phthalocyanine dyes is described. These dyes are useful in dye diffusion transfer processes. The dyes have the general formula:-  (M)n-Pc-[L-R2-N=N-R1]p where M is a metal and n is 0 or 1, Pc represents a phthalocyanine complex, L is a linking group, R1 is a substituted aromatic or heterocyclic ring containing a ballasting group, R2 is an optionally further substituted aromatic or heterocyclic ring and p is 1 - 4. A typical dye has the formula:-   <IMAGE>
Patent GB-2017288-A (GB)
Title: Fluid Fuel Fire Heaters for Heating Water or a Gas
IPC: F24H1/28
Filed: 1979-03-27
Abstract: A fluid fuel fired heat exchanger for heating a fluid, such as water or a gas, comprises a plurality of heat exchange tubes 12 each having a double walled structure over at least part of their length which defines an annular space 33 separating the heating fluid namely combustion gases from the fluid to be heated. The provision of an annular insulating space 33 prevents the temperature of the combustion gases falling below their dew point and thereby reduces condensation and corrosion. <IMAGE>
Patent GB-2046339-A (GB)
Title: Method of constructing aerated concrete wall elements
IPC: E04B2/84
Filed: 1979-04-03
Abstract: A method of constructing an aerated concrete wall or other non- horizontal panel comprises erecting formwork (2,3) to define one side only of the wall or panel, preferably positioning reinforcement (4) adjacent the formwork and then spraying aerated concrete against the formwork to form the wall or panel with any reinforcement embedded therein. The concrete is left to set and the formwork removed when the concrete is sufficiently hardened to be self supporting. Preferably the aerated concrete which is sprayed incorporates a plasticer and is sprayed in a succession of passes over the formwork. The first and/or final passes may be of non-aerated concrete. <IMAGE>
Patent GB-2020267-A (GB)
Title: Cement Composition
IPC: C04B28/02
Filed: 1979-04-24
Abstract: A cement composition comprises cement, a pozzolan material, fine aggregate, air, water, at least one alkali metal constituent selected from the group consisting of sodium, potassium, and lithium ions, and at least one anionic constituent which is capable of forming complexes with ferric ions, is soluble in water, and forms a calcium salt which is also water soluble, wherein the alkali metal constituent is present in an amount up to approximately 4.0 percent by weight, in terms of the equivalent weight of sodium ions, of the pozzolan material; the anionic constituent is present in an amount up to approximately 6.0 percent by weight, in terms of the equivalent weight of chloride ions, of the pozzolan material; and the cement composition is further characterized by: (a) having a solid volume ratio of cement to the pozzolan material within the range of approximately 0.05 to 2.0; (b) having a ration of the volume of pasta (pozzolan material, cement, air, and water) to the solid volume of fine aggregate within the range of approximately 0.75 to 2.5; and (c) having a ratio of the solid volume of cement to the volume of mortar (cement, pozzolan material, water end fine aggregate) less than about 0.19. As an alternative to the alkali metal and anionic constituents may be used calcium chloride. The pozzolan material may be trass, volcanic ash, pumice, slag, diatomaceous earth, silicious clay, calcined shale and fly ash. The alkali metal constituent and anionic constituent may be constituted by various alkali metal salts. Additives such as plasticisers may be present. <IMAGE>
Patent GB-2022272-A (GB)
Title: Camera indicator
IPC: G03B17/20
Filed: 1979-06-05
Abstract: In a camera having housing 1 and cover 3 slidable between open and closed positions, an illuminated indicator situated in recess 1d of housing 1 is visible (in both open and closed positions) in eyepiece lens 7 of a viewfinder situated in cover 3, with the aid of mirror 11 also situated in cover 3. Cover 3 is slidable to the open position to reveal a lens and/or effect film transport. The indicator may be in the form of one or more light-emitting diodes indicating the ambient light conditions or operational readiness of a photoflash or in the form of an illuminated displaceable scale indicating aperture, exposure or light intensity. <IMAGE>
Patent GB-2023401-A (GB)
Title: Cigarette making machine
IPC: A24C5/18
Filed: 1979-06-11
Abstract: A cigarette making machine comprises an air pervious band, a channel through which tobacco is showered towards the band with the aid of an air stream to form a cigarette filler stream on the band, the air stream being induced at least partly by suction acting through the band to hold the tobacco against the band, whereby there is also suction pressure in the channel at the end adjacent to the band, characterised by a partly-tubular casing (20) which covers the cigarette filler stream (11A) as it leaves the shower channel (10), and inclined air inlets (20A, 20B, 22) which are arranged to introduce air streams into the part-tubular casing direction having components in the direction of movement of the cigarette filler stream. <IMAGE>