baber/WOPTO huggingface dataset:
Patent GB-340805-A (GB)
Title: Improvements in and relating to electric telemetering systems
IPC: G08C19/00
Filed: 1930-01-17
Abstract: 340,805. Electric signalling systems. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Stewart, C. E. ; 4033, Marshall Road, Drexel Hill, Pennsylvania, U.S.A.) Jan. 17, 1930, No. 1728. Convention date, Jan. 18, 1929. [Class 40 (i).] In a system for transmitting the indications of an integrating meter situated at a remote station, impulses produced at a rate dependent upon the quantity integrated are totalized at the remote station, and indications of the number of impulses totalized during a time interval are then transmitted to the central station at the will of the operator. As shown an integrating device 1 operates a commutator 4 which produces impulses at a rate dependent upon the quantity integrated. The impulses actuate a polarized relay 10 which operates the stepping magnet 17 of a step-by-step switch 12 adapted to drive through gearing 81, 8 a contact 11 which normally co-operates with a contact 11a on a second step-by-step mechanism 18. The contact 11 is thus displaced by an amount dependent upon the quantity integrated during a desired time interval. When the operator at the central station A desires to determine the reading of the integrating device, key 20 is operated to energize a polarized relay 25 which operates a relay 29 and thereby energizes the stepping magnet 28 of switch 18. The magnet 28 and relay 29 interact to operate the switch step-by-step until the contact 11a again engages contact 11 and relay 25 is operated by reverse current to interrupt the cyclic operation of magnets 28, 29. During the follow-up operations of the switch 18, impulses of alternate polarity are transmitted over the wipers 21, 22 and line wires 31 to operate the relay 23 which operates the driving magnet 32 of the counting device 24. The remote and central stations may be connected through selective switching mechanism of the type described in Specification 307,469, [Class 40 (i), Electric signalling systems &c.].
Patent GB-1493381-A (GB)
Title: Microwave filters
IPC: H03D7/14
Filed: 1975-02-12
Abstract: 1493381 Microwave filters EMI Ltd 12 Feb 1975 [15 Jan 1974] 01862/74 Heading H1W A microwave filter comprises a coupled slot line, the members of which are joined by a further (stub) slotline dimensioned to discriminate between odd and even propagation modes. A coupled slot line consists of two parallel slot lines which will support odd and even modes of propagation; e.g. the line 1, 2 can support an even mode signal denoted by the brokenline vectors and an odd mode denoted by the full-line vectors. A joining line 3 (the configuration of which is unimportant) may have a length equal to an odd number of half-wavelengths, in which case it presents a shortcircuit to the odd-mode energy, and an open circuit to the even-mode energy at junctions 5. Thus the circuit provides a band-pass filter for the odd-mode energy and a band-stop filter for the even-mode energy. If the length of line 3 is equal to an even number of half waves, the opposite effect is achieved. In application to a mixer circuit, a local oscillator signal is launched on line 1, 2 in the even mode from junction 7, whilst a modulated signal is launched on the line in the odd mode from terminals 4, 4. The signals are mixed in diodes 8. The filter prevents propagation of the local oscillator signal towards terminals 4, 4 whilst providing a pass band for the modulated signal originating at these terminals.
Patent GB-547048-A (GB)
Title: An improved process for the catalytic treatment of relatively high boiling hydrocarbons
IPC: C10G11/18
Filed: 1941-02-12
Abstract: 547,048. Catalytically cracking oils. STANDARD OIL DEVELOPMENT CO. Feb. 12, 1941, No. 1898. Convention date, Dec. 30, 1939. [Class 32] In processes for the catalytic conversion of hydrocarbon oils to gasoline &c. of the kind in which a suspension of oil vapours and solid finely divided catalyst is passed through a heated reaction zone whereafter the catalyst is separated, e.g. in a cyclone separator, from the cracked vapours, regenerated and returned to the process for admixture with fresh oil stock, the majority of the catalyst, e.g. 96 per cent. is separated from the oil vapours in a cyclone separator while the remainder is separated by cooling the vapours leaving the cyclone separator to obtain a condensate which is used to wash the residual vapours free from catalyst. Crude oil fed through a line 1 is vaporized in coil 4 and with or without passage through a separator 7 is mixed with catalyst from a hopper 12 in an injector 10. The mixture is passed through a heated tubular reactor 15 and 'the cracked products are separated from the most of the catalyst in a separator 17. The vapours are then cooled from 850 to 600 F. by passage through a coil in a vessel 2 through which crude oil entering at 1 is circulated. The mixed vapours and condensate pass through 19 to a scrubber tower 20 through which the condensate is circulated by lines 25, 25a so as to wash the vapours in countercurrent, thus removing residual catalyst. Part of the condensate with entrained catalyst may be fed back to the cyclone separator 17 by pump 26. The purified vapours are fractionated in a tower 22 to recover gasoline and heavy fractions condensing in the tower may be fed back either through line 34 to tower 20 or through cooler 32 and line 33 to mix in line 19 with the cooled products entering tower 20. Specification 543,838 is referred to.
Patent GB-1416753-A (GB)
Title: Methods of manufacture of colour picture tubes
IPC: H01J9/227
Filed: 1973-01-15
Abstract: 1416753 Colour television tubes RCA CORPORATION 15 Jan 1973 [14 Jan 1972] 1937/73 Heading H1D In a photographic method of fabricating the phosphor pattern of the screen of a shadow  mask colour tube, in which a photosensitive coating is exposed to a small area light source through the shadow mask, misregister is reduced by exposing a central zone of the screen predominantly but not wholly to a light source positioned at a second order colour centre, and an outer zone of the screen, predominantly but not wholly to a light source positioned at a first order colour centre. Optical intensity filters are employed to permit the exposure of one or the other zone, and preferably for each exposure an appropriate correcting lens is employed further to reduce misregister throughout the relevant zone. Different lighthouses, or a simple, adjustable lighthouse may be employed for the two exposures, and preferably a longer light. source is used for the outer zone, to ensure adequate exposure at the edge of the screen despite a decrease in size of the mask apertures in that region. Exemplary calculations are provided for a case in which, for the exposure of the outer zone, the light source position and the shadow mask contour are chosen to eliminate degrouping error at the corners of the screen. The exposure is then carried out without the use of a correcting lens, whereafter the misregister at other points in the outer zone is determined by employing the screen in a colour tube, and the resulting data employed to design a correcting lens for minimizing misregister throughout the remainder of the outer zone. Reference is made to the possibility of exposing the whole screen to the second order source, but only the outer zone to the first order source, whereby distorted dots are produced in the outer zone to ensure full beam spot landing. The method may be employed for a dot or line screen, and for black-matrix and non-matrix screens.
Patent GB-868739-A (GB)
Title: Improvements in or relating to inflatable boats and the like
Inventor: NICHOLL GEORGE WILLIAM ROBERT
IPC: B63B7/08
Filed: 1959-01-19
Abstract: 868,739. Inflatable craft. AVON INDIA RUBBER CO. Ltd. Jan. 5, 1960 [Jan. 19, 1959], No. 1953/59. Class 113. The thwart 5 of an inflatable craft is constructed of an independent separately inflatable component which is detachably secured to the bottom 4 of the boat, e.g. by canvas straps 6 and toggles 7.
Patent GB-109925-A (GB)
Title: Improvements in and relating to Washing Machines.
Inventor: PATTERSON THOMAS ALLISON
IPC: D06F5/04
Filed: 1917-02-09
Abstract: 109,925. Patterson, T. A. Feb. 9, 1917. Washing-machines with axially-moving plungers and dollies. - The clothes-pounder consists of a dished plate 26 to which are attached a number of conical, plungers 31. It is reciprocated by means of a rod 24 and a lever 21 which is pivoted to a standard 18 rotatably mounted in a socket 17, so that the pounder, together with the cover 10, may be lifted and swung laterally to obtain access to the tub. The clothes rest on a perforated false bottom 28 to promote circulation of the washing- liquid.
Patent GB-798131-A (GB)
Title: Improvements in or relating to stringed musical instruments
IPC: G10D3/18
Filed: 1956-01-21
Abstract: 798,131. Stringed musical instruments. MICHEL, J. Jan. 21, 1957 [Jan. 21, 1956], No. 2085/56. Class 88 (2). A shoulder-pad comprises a layer 21 of rubber or the like secured to a curved plate 20 which carries near one end a pin 18, fitting into a socket 17 in a mounting member 16, and near the other end a strut 26 adjustable in height which rests against the back of the instrument or is clipped over the rim 35. A screw-threaded rod 30 is hinged to the strut 26 and engages the bifurcated end of the mounting member 16, being locked in position by a nut. The mounting member 16 is secured to a plate 13 which is clamped to the instrument together with a chinrest 12 by means of turnbuckles 14.
Patent GB-489310-A (GB)
Title: Apparatus for treating liquids by centrifugal force
IPC: B04B9/06
Filed: 1937-01-25
Abstract: 489,310. Centrifugal separators. JEFFERIES, E. J., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Jan. 25, 1937, No. 2216. [Class 23] Liquids are freed from finely divided solids during their passage through a vertical cylindrical rotor 1 having conical external ends 5 resting in conical surfaces 6 having a slightly different angle from that of the ends 5. Compressed air or other gas is supplied through the connections 10 to the annular chambers 9 and it issues from the narrow passages 11 as jets which impinge upon the sides of grooves in the ends 5 and so cause the rotor 1 to rotate. The surfaces 6 are supported by flexible plates 12 and the lower surface is also supported by a plate 13. The liquid for treatment is fed from a pipe 14 to the inlet 4 and the annular passage 17 by which it is conducted to the periphery of the rotor chamber. The outlet 3 has a larger diameter than the inlet 4 of the feed device, and conducts the purified liquid to the chamber 18 with a discharge pipe 19. The rotor has two parts with a screw joint 20 and radial baffles 21 prevent the liquid from slipping.
Patent GB-727412-A (GB)
Title: Display plate and method of manufacturing the same
IPC: G09F7/16
Filed: 1952-01-28
Abstract: 727,412. Signs. STEWART, J., and JARDINE, T. S. Jan. 28, 1953 [Jan. 28, 1952], No. 2226/52. Drawings to Specification. Class 3 (2). [Also in Groups XV and XVI] A display plate is made by interposing a sheet of metal foil between a heated embossed representation of a given device or legend and a sheet of transparent thermo-plastic material, pressing the sheet of transparent material against the sheet of metal foil and the embossed representation to cause the embossed representation to form recesses in the sheet of transparent material and at the same time to cut pieces of metal foil the shape of the representations from the sheet which are pressed into the transparent material to lie at the bottom of the recesses, interposing a sheet of ornamental material between the transparent material and a backing sheet, the recessed face of the transparent sheet being against the ornamental material and bonding the transparent sheet, the ornamental sheet and the backing sheet together. The recesses may be filled with a sealing material before bonding and after bonding the edges of the sheets may be sealed with a weather-proofing material. The backing sheet may be opaque, transparent or translucent and the transparent sheet may be coloured. The ornamental material may be of tartan material.
Patent GB-800906-A (GB)
Title: Process and plant for separating particles of solid material into fractions according to specific gravity
IPC: B03B5/44
Filed: 1957-01-22
Abstract: 800,906. Separating granular materials. STAMICARBON, N. V. Jan. 22, 1957 [Jan. 27, 1956], No. 2312/57. Class 82(2) In a hydrocyclone separator system using a magnetic suspension, in which the separated fractions are screened, the rinsed throughput of the screens again screened on finer screens and this throughput supplied in a magnetized condition to a static thickener, the thickener operates under an overload such that of the non-magnetizable particles coarser than the average size of the magnetizable particles of the medium, the majority are discharged at the overflow, at least part of which is treated to recover magnetic particles by magnetic separators. Feed is supplied with medium at 1 and passes into a hydrocyclone 3. Coal is discharged at B and shale at C after passing over screens 4, 6 and 9, 12, the latter being vibrating screens. The rinsed-off throughput is again screened on finer screens 16, 20 and the overflow supplied to magnetic separators 19, 24. The magnetic fractions recovered from the separators 19, 24 are recycled to the vibrating screens. Non-magnetic particles are rejected at D, E. In a modification (not shown) screens 4, 9 feed their underflow to further screens of the same type, the underflow of which goes to the thickener 15 and the overflow joins the underflow of the appropriate vibrating screens 6 or 9. By using coarse screens in the first stage of this embodiment less wear occurs on the fine screens below. Specifications 791,520. 791,857, 791,858 and 791,859 [all in Group I] are referred to.
Patent GB-1350591-A (GB)
Title: Containers for pressurised fluids
IPC: B65D77/30
Filed: 1970-01-19
Abstract: 1350591 Container closures; packaging liquids; portable containers J H GAUNTLET 19 April 1971 [19 Jan 1970 13 May 1970 11 June 1970] 2403/70 23041/70 and 28330/70 Headings B8T B8C and B8D A thin-walled container for pressurized fluid, e.g. beer, has a slot 14 in its side wall closed by an internal flap 15 of resilient plastics which may be joined to the wall at 16 by spot-welding or an adhesive. The slot 14 is opened by pressing the container wall at 17 to fill the container or to discharge fluid, Fig. 3 (not shown); and the wall may also be of resilient plastics, e.g. p.v.c. A protective sleeve 18 has a tear-out portion 19. The container is moulded in halves which are joined by spin-welding or ultra high frequency welding. The flap 15 may be coated with oil or wax as a sealant.
Patent GB-1453412-A (GB)
Title: Convection heater for fluids
IPC: F23N1/02
Filed: 1975-01-21
Abstract: 1453412 Regulating fuel fired liquid heaters C E SMALLING 21 Jan 1975 2488/75 Heading F4B In a fluid heater comprising an elongated horizontal housing with a primary combustion chamber 12, a secondary combustion chamber 14 and a heat exchange section 16, the temperature of the gases sensed at 94 near the outlet of the secondary combustion chamber 14 is used to operate a valve 96 in the supply line of pressure fluid to linked pressure operated valves 38, 40 controlling the primary and secondary air supply to a mixing chamber 24. A secondary air fan 56 supplying air to chamber 14 may be controlled at the same time. A pilot burner supply, controlled by valves 90, 92 is taken from the main fuel supply line, which has a trip valve 86.
Patent GB-251680-A (GB)
Title: Improvements in the production of artificial filaments
IPC: D01D5/04
Filed: 1925-01-30
Abstract: 251,680. Levy, L. A. Jan. 30, 1925. No Patent granted (Sealing fee not paid). Apparatus for making filaments. - In a process of semi-dry spinning of artificial filaments, the latter are extruded into a closed or nearly closed chamber through which is circulated air which may be heated. After leaving the chamber, the solvent remaining in the filaments is removed by passage through a setting-bath which may be heated. As shown, the filaments bare extruded at a nozzle c into a closed chamber a containing in its lower part the setting-bath e ; the filaments are withdrawn from the chamber and are subsequently collected in a centrifugal box or wound up on bobbins or on a cap-spinning or similar machine. Alternatively, the setting-bath may be arranged outside the chamber. According to the Provisional Specification, the spinning solution may be cellulose acetate in acetone, and the spinning nozzles may be of the construction described in Specification 213,138.
Patent GB-1212975-A (GB)
Title: Improvements in or relating to percussive tools
Inventor: LAST ANTHONY EDWARD WALTER
IPC: B25D9/14
Filed: 1967-01-19
Abstract: 1,212,975. Percussive tools. BRITISH STEEL PILING CO. Ltd. 18 Jan., 1968 [19 Jan., 1967], No. 2831/67. Heading B4C. [Also in Division E1] A percussive tool operable by a compressible fluid comprises a differential area ram piston 6 reciprocable in a cylinder 2 having at least one fluid port at each opposite end region, a valve 30 for alternately connecting one port 26 to a fluid supply line 41 and effecting communication between the ports, the other port being spaced from the associated end of the cylinder, and exhaust ports 28. As illustrated the tool is a pile driver or extractor and the fluid is air. In operation compressed air admitted via the line 41 causes the differential valve piston 46 to move to the position shown. The line 41 then communicates with the port 26, and the piston is forced upwardly. When the exhaust ports 28 are closed by the piston, the air above the piston is compressed and when the pressure of that air reaches 45 lb./sq. inch the valve piston is displaced downwardly thus permitting the ports to communicate. The piston still continues to rise under its inertia thus raising the pressure of the air in the region of the cylinder above the piston and closes the port associated with the inlet conduit 24 before the air pressure above the piston is sufficient to reverse the piston motion. During downward movement the air pressure falls to 46 lb./sq. inch when the ports 28 are uncovered, thereby releasing air under pressure and-allowing the valve piston to be displaced by compressed air to the position shown. The piston stem 12 strikes an anvil block 22 which is attached to the cylinder by a resilient wire strap passing through aperture 21a. For raising or extracting a pile the tool is inverted and attached to a pile by wire bridles in which case the hammer piston is in an end position opposite to that shown. In order to commence reciprocation of the hammer piston, compressed air is admitted via conduit 48 and one-way valve 49 to the cylinder to raise the piston 6 until ports 28 are uncovered whereupon operation of the tool will commence.
Patent GB-193636-A (GB)
Title: Improvements in cracking devices
IPC: A47J43/26
Filed: 1922-01-31
Abstract: 193,636. Kroon, J. P. H. Jan. 31, 1922. Nut-crackers.-A cracking-device is so formed that the points at which the article to be cracked is gripped are in close proximity to the fulcrum or fulcra of the handles. Fig. 1 shows a form in which a handle 1 is provided with jaws or gripping-surfaces 2, 3 and arcuate pieces 4, 5 at each end, one serving for large and the other for small nuts. Both of the arcuate ends are forked and provided with fixed journals 6, 7. The parts of the journals lying between the two links of the forked ends are flattened. The other handle 8, which is provided with a gripping-surface 9, is slotted at 10 so as to form a hook to engage the journals 6, 7. In the form shown in Fig. 2, the handle 8 is provided with two bores 11<1>, 11<11> connected by a slot so arranged that the journal 6 may be engaged by either bore. In the form shown in Fig. 3, the distance between the cracking-surfaces may be altered by turning the member 15 through a right-angle so that it may pass through a hole 14. In a further modification, the member 2 is permanently hinged to the member 8 and carries hinged to it an additional crack. ing-surface, which may be brought under the cracking-surface. 9. Fig. 5 shows a form in which cracking-surfaces are formed on both sides of the member 8, the distance between the cracking members being varied by turning the loose handle 8.
Patent GB-815107-A (GB)
Title: Improvements in or relating to resinous compositions
IPC: C08G63/695
Filed: 1956-01-30
Abstract: Polymerizable silicone polyester compositions comprise a solution in a vinylic solvent of a reaction product of (1) a siloxane containing the units <FORM:0815107/IV (a)/1> in which X is ZOR1 or (YOOC)aR11, where Z is hydrogen or an acyl radical, R1 is a divalent saturated aliphatic hydrocarbon radical, Y is hydrogen or an alkyl radical, R11 is a divalent or trivalent saturated aliphatic hydrocarbon radical, the ZO or the (YOOC) groups being attached to a carbon atom at least three carbon atoms away from the silicon, a is 1 or 2, n is from 0 to 2, and R is a monovalent hydrocarbon or halogenated hydrocarbon radical free from aliphatic unsaturation; and (2) a dihydric alcohol or acyl ester thereof, and a dicarboxylic acid, anhydride or ester, at least one of these alcohol, ester or acid compounds containing aliphatic unsaturation.  The proportions of the reactants are 0.01 to 20 per cent by weight of (1) and 80 to 99.99 per cent of (2).  The siloxane may contain up to 80 mol. per cent of copolymerized units of the formula <FORM:0815107/IV (a)/2> in which A is a monovalent hydrocarbon or halogenated hydrocarbon radical or a halophenoxy methyl radical and m is from 0.9 to 3. The amount of vinylic solvent is not more than 50 per cent by weight of combined (1) and (2).  The siloxanes, except those where Z is acyl, are described in Specifications 769,496 and 769,497. Suitable vinylic solvents are styrene, vinyl toluene, divinyl benzene, vinyl acetate, methyl methacrylate, isoprene, butadiene, chloroprene, diallyl phthalate and other diallyl esters of dicarboxylic acids, triallyl cyanurate, diallyl glycol carbonate, diallyl benzene phosphonate, glycol methacrylates, vinyl chloride, vinylidene chloride, allyl alcohol and acrylonitrile. Specified dihydric alcohols and ester derivatives are ethylene-, diethylene-, triethylene-, propylene-and hexylene-glycols, butanediol-1,4, isopropylidene bis - (p - phenyleneoxypropanol - 2) and 1,4-dihydroxy-butene-2, and their acetates, formates and propionates.  Examples of dibasic acids and their derivatives are maleic, fumaric, succinic, adipic, phthalic, tetrahydrophthalic, azelaic, malonic, tetrachlorophthalic chlorendic, diphenic, stilbene dicarboxylic, tolane dicarboxylic and dibenzyl dicarboxylic acids and some of their anhydrides and alkyl esters. Limited amounts of mono-, tri- and tetra-hydroxy alcohols and mono- and tri-carboxylic acids may be included.  The compositions may be cured by heat alone but are preferably cured at room temperature by the action of catalysts such as peroxides, azo compounds, or metal salts such as cobalt octoate, hexoate or naphthenate.  Pigments and fillers such as silica, glass fibres and organic fabrics may be added.  The compositions are useful as protective coatings, electrical insulation and moulded and laminated articles.  Specification 769,498 also is referred to.