baber/WOPTO huggingface dataset:
Patent GB-1100309-A (GB)
Title: Ejectors
IPC: F04F5/46
Filed: 1965-07-26
Abstract: 1,100,309. Ejectors. R. C. SCHLICHTIG. July 26, 1965, No.31819/65. Heading F1E. In an ejector having liquid or gaseous inducing fluid, the inducing fluid passageway 14, Fig. 1, leads into a curved compartment 12 which leads into a discharge passage 32. The inducing fluid from source 34 passes via duct 36 into passageway 14 and the liquid or gaseous induced fluid from source 40 passes via duct 38 into an induced fluid passageway 30 which leads into the inner side of the curved compartment 12. In modifications the fluid inlet ducts extend from plates 24, 26 on both sides of plate 16 and the plates 24, 16, 26 may be formed as an integral moulding. In another embodiment the induced fluid passage (84), Fig. 3 (not shown) is curved and leads into a curved mixing compartment (82) which in turn leads into a discharge passage (114) which curves successively in opposite directions. In a modification a discharge connection similar to the connection 129, Fig. 4, may be fitted. In another embodiment the medial plate 128, Fig.4, is wedged shaped and the inducing fluid passage 122 is convergent/divergent. In a modification the secondary passage may be curved convergent/divergent. In another embodiment the ejector 190, Fig. 5 is of annular shape. In another embodiment a non-return valve (230), Fig. 7 (not shown) is arranged in the induced fluid supply passage. In another embodiment the discharge passage (247), Fig. 9 (not shown) is shortened and combustion of an inducted gaseous fuel takes place in a curved mixing compartment (12). In all embodiments the passageways may be of circular cross-section.
Patent GB-1269826-A (GB)
Title: Air flotation system for conveying web materials
Inventor: FRASER WILLIAM ANDREW RUET
IPC: B65H20/10
Filed: 1969-06-24
Abstract: 1,269,826. Feeding webs. EGAN MACHINERY CO. 24 June, 1969 [29 July, 1968], No. 31913/69. Heading B8R. [Also in Division F4] In its travel from dispensing apparatus 10 to reeling apparatus 11 a web W is supported by a flotation system including nozzles 50 connected to a blower 51; gas, e.g. air, issuing from each nozzle coacts with the web W and with curved exit surfaces of the nozzle to form a flow pattern producing a region of low pressure whereby the web remains stable a short distance from the support nozzle. A suitable form of nozzle, which utilizes both the Venturi and Coanda effects to achieve the desired flow pattern, is described with reference to Figs. 5 to 7 (not shown). As shown, the web W is supported by the nozzles 50 within, but out of contact with, a dryer 12 furnished with upper drying means 32 and lower drying means 34 connected to blowers (37), (41), Fig. 2 (not shown), the air discharged by the nozzles 50 and the means 32, 34 being withdrawn by an exhaust blower 46. The dryer may be of the arch type, where the web passes through in a bowed configuration, and the nozzles 50 may be located above or below the web (Figs. 3 and 4, not shown), or on both sides of the web. In another embodiment the flotation system is used to support the web in its passage from coating apparatus to a laminating unit (Fig. 8, not shown).
Patent GB-321063-A (GB)
Title: Improvement connected with wire mattresses
IPC: A47C23/145
Filed: 1928-11-02
Abstract: 321,063. Myer & Co., Ltd., H., and Meyer, L. H. Nov. 2, 1928. Mattresses, - In underlays for coiled-wire mattresses comprising wire or other ropes E, Fig. 5, passed from end to end and connected together at intervals by helical springs C, the springs are secured to clips or hooks A having comparatively long bearing surfaces to avoid cutting the ropes. The springs C have hooked ends D engaging holes in the clips A which may have flared ends B'. The plates A may be formed with tongues or projections which can be bent over to form hooks to engage the coils D of the springs.
Patent GB-429156-A (GB)
Title: Improvements in or relating to tins, canisters and like receptacles for the package of paint, confectionery, foodstuffs and the like
IPC: B65D51/18
Filed: 1934-11-07
Abstract: 429,156. Tins &c. FEAVER, Ltd., J., and WILLIAMS, F. W., 120, Tower Bridge Road, London. Nov. 7, 1934, No. 32030. [Classes 66 and 125 (iii)] In a tin, canister &c. having a replaceable lid 2 and an anti-pilfering capsule 4 underlying or overlying it and formed with a tear-out strip, the tab-opening 8 of the strip is sealed by a sealing element 7 air-tightly applied across the opening beneath the tab. The capsule may be of thin metal, the sealing element being then also of metal and soldered in place, or, as shown, the capsule may be of metal backed with paper and the sealing element, similarly constituted, adhesively attached.
Patent GB-689459-A (GB)
Title: Improvements in turntables for model railways
IPC: A63H19/34
Filed: 1949-12-14
Abstract: 689,459. Turntables for toy railways. PINDER, T. Dec. 1, 1950. [Dec. 14, 1949] No. 32041/49. Class 132 (iii). A model electric railway turntable, wherein the weight of a vehicle is used to turn or assist in turning the turntable, comprises a table 1 which remains stationary until a variation in the centre of gravity of the table and vehicle tilts the table slightly to disengage its stop 7. The table then rotates as' a result of the co-action of a, screw thread 3 and a projection on a pivot sleeve 2, until at the completion of the turning movement a stop 8 runs up a ramp 10 and engages locating means at the approach track 9. After the vehicle has run off, the table is raised by a spring 6 and turns back to its normal position. The lateral inclination of the table pivot axis (see Fig. 2) increases the inertia of the loaded table during the final stage of the table turning motion and ensures alignment of the table rails with the approach rails. Modifications, Figs. 3, 4, 5 (not shown) include improved electrical contact from the table to the approach rail. Switching means for the table rails are specified for two-rail and three-rail systems. Specifications 556,783 and 591,389 are referred to.
Patent GB-1019630-A (GB)
Title: A method of and apparatus for determining whether or not the quantity of inert gas present in the gas discharge electrodes of a fuel cell is above a particular value
IPC: H01M8/04537
Filed: 1962-08-07
Abstract: 1,019,630. Fuel cells. ACCUMULATORENFABRIK A.G., and SIEMENS-SCHUCKERTWERKE A.G. Aug. 7, 1962 [Aug. 5, 1961], No. 30267/62. Heading H1B. A fuel cell supplied with a fuel gas in axis flow through a number E 1 -E 4  of electrodes all connected electrically in parallel has a circuit in which the voltage drop across similar resistances R 1  and R 4  are compared by a differential relay Re, the difference being a measure of inert gas in the last electrode. A valve V is operated by the relay to purge the gas line. In a modification a magnetic device employing the Hall-effect is used as the comparator to reduce resistance losses.
Patent GB-506048-A (GB)
Title: Improvements in or relating to magnetron discharge tube arrangements
IPC: H01J25/58
Filed: 1937-11-22
Abstract: 506,048. Magnetrons. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Nov. 22, 1937, No. 32126. Convention date, Nov. 21, 1936. [Classes 39 (i) and 40 (v)] In circuit arrangements employing a magnetron with a split anode system having a number of segments divisible by four, the segments are differently grouped electrically as regards the control and output frequencies so that the same segments act simultaneously as control and output electrodes, and the electron source or sources are arranged peripherally to or outside the discharge space, surrounded by the anode system. The arrangement is particularly adapted for multiplication of high frequencies, and the magnetron comprises four anode segments A1 ... A4, two pairs being connected by the Lecher wire systems a, b, which are themselves joined to form the system c, which is connected to the control oscillator o. The system c is tuned to one quarter of the wave-length of the oscillator o or a multiple thereof, and the systems b, c are tuned to one half this wavelength or a multiple thereof. The two systems a, b are also tuned by the aid of bridges B to one quarter of the output wavelength or a multiple thereof. The output circuit N supplies an aerial or other device V such as a further frequency multiplier. Electrons are supplied to the space within the anodes by one or more sources K and follow the paths indicated before being collected by the electrode N. By injecting direct current energy, the arrangement may be made to act as an amplifier as well as a frequency multiplier. The tube acts as a 2-segment magnetron as regards the input or control and as a 4-segment magnetron as regards the output, the effect being explained with reference to a tube with four perforated output segments in front of two semicircular control segments. The angular velocity of electrons about the central electrode N may be equal to or 3-or 5 times, the angular velocity of the control field. The frequency of the output circuit may be that of, or a harmonic of, the frequency of rotation of electrons. A prior arrangement using in similar manner the segments of a magnetron with central cathode is described, reference being made to radially inturned flanges on two anode segments. Specification 488,094, is referred to. The Specification as open to inspection under Sect. 91 comprises also modifications in which the magnetron operates as a 2-segment tube for both control and output, the plane of the gaps in the control and output systems being mutually perpendicular, and in which the anode system has 3 or 6 segments. This subject-matter does not appear in the Specification as accepted.
Patent GB-733990-A (GB)
Title: Improvements in recovery of tin from tin bearing materials
Inventor: LICHTY LYALL JOHN
IPC: C22B25/00
Filed: 1953-11-19
Abstract: Tin is extracted from materials, containing not more than 20 per cent tin and which are oxygen compounds of tin, iron, silicon, aluminium, calcium and magnesium in which the combined weight of lime, alumina, magnesia and iron oxide is greater than that of silica and the ratio of iron to tin is not less than 1.5-1, by melting a finely-divided mixture of the material and a reducing agent comprising silicon in amount equal or greater than that theoretically required to reduce all the iron oxide in the material to iron, whilst controlling the composition of the mixture (e.g. by the addition of lime) to produce a basic slag. The tin is then recovered from the reaction mass as an alloy containing equal amounts of tin and iron.  The amount of silicon used is preferably not more than is theoretically necessary to reduce the combined weights of iron oxide and tin oxide, computed as ferrous oxide and stannic oxide, to metal.  The silicon may be used as such or as ferrosilicon and may also include aluminium, calcium or magnesium, e.g. calcium carbide or calcium silicide may be mixed with ferrosilicon.  An alloy of approximate composition: Si 66.5 per cent; Al 8 per cent; Fe 25 per cent, is a preferred reducing agent.  The iron-tin alloy produced may be melted with ferrosilicon and the melt cast, the tin then being found at the bottom of the casting.  The upper part consisting of ferrosilicon is crushed and re-used.  U.S.A. Specification 1,518,742 and 1,826,552 are referred to.
Patent GB-158782-A (GB)
Title: Improvements appertaining to the driving and carrying or like supporting rollers forthe woven wire conveyers in drying and carbonizing machines
IPC: D06C7/04
Filed: 1919-12-23
Abstract: 158,782. Crowther, H., and Garside, W. J. Dec. 23, 1919. Driving-drums.-Driving or idler rollers c for woven wire conveyers a are formed with grooves c<1> of sufficient size to receive the relatively fine warp wires b without touching them. The grooves may be formed by applying rings to the roller.
Patent GB-770281-A (GB)
Title: Improvements relating to the production of combustible mixtures for internal combustion engines
IPC: F02M31/00
Filed: 1953-11-23
Abstract: 770,281. Gasefying fuels ; cooling and mixing charge ; utilizing unvaporized fuel. DAIMLER-BENZ AKT.-GES. Nov. 23, 1953 [Nov. 21, 1952], No. 32424/53. Classes 7 (2) and 7 (3). Combustible mixture containing fuel in vapour form is produced by supplying heat to the fuel or combustion air before the formation of the mixture or to the mixture during formation of the mixture for the purpose of producing a superheated vapour of the fuel and removing heat again after the formation of the mixture so that the mixture is brought to or below the saturation condition and the fuel is converted into a fine mist or saturated or supersaturated vapour. A plurality of fuel may be used. The fuels may be so selected according to type and composition by weight that in accordance with their partial pressures they have the same or substantially the same saturation temperature (i.e. that their weight fractions are approximately in the same ratio as their saturation pressures at the respective saturation temperature). The fuel may first be coarsely atomised and the coarse droplets then separated out by air sifting or winnowing i.e. particularly by centrifugal action. The fuels employed may have a saturation temperature below atmospheric temperature (e.g. 17‹) so that complete or substantially complete evaporation is possible without additional supply of heat. A fuel composed of 70 per cent. octane and 30 per cent. heptane may be used. By selection of the constituents of the fuel a mixture with the lowest possible saturation temperature can be obtained. The supply of heat can be regulated in dependence on the temperature of the mixture before admission to the engine. For the supply of heat use may be made of engine cooling water exhaust gases or an electric starting heater. The cooling of the mixture containing evaporated fuel may be effected by mixing therewith colder gases or by evaporation of a liquid. In Fig. 2 mixture is compressed at 12 cooled by cooling air which is supplied at 13 and sweeps around the outside of the rotor 14. Also the mixture is cooled by expansion in a stage 15. The compressor can be driven by the engine or independently. In Fig. 4 two or more fuels are injected separately. For example octane is first injected then for example heptane is injected. Owing to the cooling produced by the second injection the fuel injected first is partly precipitated as mist. In Fig. 5 a return pipe 33 particularly for octane and a return pipe 33' particularly for heptane may be provided. Air sifting may be used in conjunction with evaporation or formation of a mist by heating or by compression and expansion. The fuel injection arrangement of Fig. 4 may be used in conjunction with the compression and expansion arrangement of Fig. 2.
Patent GB-413936-A (GB)
Title: Improvements in and relating to photographic printing apparatus
IPC: G03C5/10
Filed: 1933-11-21
Abstract: 413,936. Photographic printing-apparatus. BOROVSKY, N., 13, Rue de l'Arc de Triomphe, Paris. Nov. 21, 1933, No. 32457. [Class 98 (ii).] Apparatus for photographic printing of the kind in which printing is effected by the aid of light reflected from the original comprises in combination a transparent glass plate, associated with means to hold an original and printing paper on one side thereof, an opalescent or frosted plate spaced away from the other side of the transparent plate, and means for illuminating by reflected rays the opalescent plate on that side away from the transparent plate with light rays preferably of yellow-orange colour of which the spectrum contains neither blue, indigo nor violet. As shown, the apparatus comprises a box 1 having a cover 2 in which is located a plate 7 having springs 11 pressing the original and sensitized paper against a transparent plate 8. The lamps 9 have a darkyellow orange filter giving yellow-orange light of which the actinic rays have a wavelength range of from 700 to 490 ÁÁ, and of which the spectrum contains neither blue, indigo, nor violet. Reflectors 10 on the lamps project the light on to a reflecting surface 13 whence it is reflected on to the opalescent or frosted plate 14. A switch and current-connecting device may be provided near the bottom of the box 1.
Patent GB-1388164-A (GB)
Title: Control valve
IPC: F23N5/10
Filed: 1972-07-12
Abstract: 1388164 Control valves for gas burners ROBERTSHAW CONTROLS CO 12 July 1972 [14 July 1971] 32668/72 Heading F4T [Also in Division F2] A control valve assembly for gas burner apparatus comprises a diaphragm defining a main valve member 16, Fig. 1, between inlet 12 and outlet 14, a rotary plug valve 24 having a through passage 26 for controlling main gas flow and an arcuate groove 30 for delivering gas to pilot burner passage 32, and a safety valve 80 operated by a dual lever mechanism. When it is desired to light the pilot burner, knob 44 is rotated to align cavity 46 with protrusion 48 and thereby suitably position the groove 30 as shown. Depression of knob 44 causes a flange 40 to abut and rotate a lever 66 and thereby force armature 54 of magnetic holding device 52 upwardly against action of spring 56, the valve 80 remaining closed due to the pressure differential thereacross. However, on further rotation of the lever 66, the arm 70 thereof abuts valve lever 72 and thereby forces the valve 80 slightly off its seat, causing collapse of the presure differential and subsequent opening of the valve 80 by a torsion spring 76. The pilot burner is then ignited, and a thermoelectric voltage generated by a neighbouring thermocouple energizes the magnetic holding device 52 to maintain the valve 80 open after release of knob 44. A method of calibrating the dual lever mechanism by bending of arm 70 is described in connection with Figs. 5 and 6 (not shown). An alternative dual lever mechanism is described with reference to Figs. 7 to 9 (not shown).
Patent GB-1234815-A (GB)
Title: Method of producing photographic images using photoconductive media
IPC: G03C1/705
Filed: 1968-07-10
Abstract: 1,234,815. Forming conductivity images. ITEK CORP. July 10, 1968 [July 13, 1967 (3)], No.32800/68. Heading G2H. Latent conductivity images developable by means of the liquid redox systems described in Specification 1, 043, 250 into negatives images of the original are obtained by (i) imagewise or uniformly exposing a photo-conductive layer to bandgap light e.g. U. VI, (ii) allowing the layer to decay until it is substantially non-conductive and then (iii) respectively uniformly or imagewise exposing to light of a wavelength longer than said bandgap light e. g.  green light. Latent images developable to positive images may be obtained if after step (iii) the layer is again decayed and then uniformly exposed as in step (iii). The images may also be developed with monomers polymerized in the latent image areas e. g. acrylamide/ methylene bisacrylamide to give relief images or liquid developers as described in Specification 935, 621. The photo-conductive layer may be dye sensitized, the dye being subsequently removed by alkaline sulphites or bisulphites. In the examples the photo-conductive layer is TiO 2  dispersed in polyvinyl alcohol or an acrylate binder.
Patent GB-821395-A (GB)
Title: Improvements in alkyl aryl vinyl silicone elastomers
IPC: C08K3/36
Filed: 1957-10-22
Abstract: The physical properties of a cured silica-filled alkyl aryl vinyl siloxane elastomer are improved by subjecting the uncured siloxane to a smearing or wiping and shearing mixing operation at a temperature above 25 DEG  C.  The operation may be effected in a dough-mixer or Banbury mixer and during the addition of the filler to the siloxane; alternatively the filler may first be compounded with the siloxane and the mixture then treated as above.  Generally, the aryl radicals, e.g. phenyl, xylyl, benzyl, tolyl and chlorophenyl, comprise 2 to 20%, the vinyl radicals 0.05 to 2%, and the alkyl radicals, e.g. methyl, ethyl and propyl, 78 to about 98% by weight of the total Si-bonded organic radicals. In the examples, comparative physical properties are given of a methylphenylvinyl siloxane gum (a) doughmixed at 150 DEG  C., (b) compounded on a rubber mill, with finely-divided silica and diphenylsilane diol, and when cool mixed with bis-(2 : 4-dichlorobenzoyl)-peroxide and cured.  The physical properties are further improved by using dimethylcyclopinacoxysilane <FORM:0821395/IV (a)/1> together with the diphenylsilane diol.  Other curing catalysts specified are benzoyl peroxide and t-butyl perbenzoate.  Uses.-For making gaskets, tubing, insulation and shock-absorbers.
Patent GB-949287-A (GB)
Title: Dry solid curing salt composition
Inventor: SAIR LOUIS
IPC: A23B4/023
Filed: 1962-08-28
Abstract: A dry solid curing salt composition for dissolution in water to prepare pickling brine, or for addition to an aqueous mass of meat before, during or after comminution, comprises soluble substances e.g. sodium chloride, sodium nitrate, sugar dextrose, sodium cyclamate, sodium isoascorbate, glycerol, sodium citrate, and, as essential constituents, sodium or other alkali metal nitrite and not more than 32% of a lactone which slowly hydrolyses when dissolved in water to yield acid.  The quantity of lactone e.g. glucono-, lactobiono-, or maltobiono-delta lactones, is such as to effect and maintain, in the presence of meat, a pH of from 5 to 7 in the aqueous mass or water in which the composition is dissolved.  The composition may also include an alkaline substance to neutralise any free acid liberated from acidic substances included in the dry composition which would otherwise decompose the nitrite in the composition before it can be used.
Patent GB-1256134-A (GB)
Title: Pipe handling and centering apparatus for well drilling rigs
IPC: E21B19/24
Filed: 1969-06-30
Abstract: 1,256,134. Drilling rigs. BYRON JACKSON Inc. 30 June, 1969 [3 July, 1968], No. 33023/69. Heading E1F. A floating drilling rig has the pipe string 26 held in a master gimbal bushing G in a central opening in the platform or ship, so that the pipe string is relieved of rolling and pitching stresses. Further stands of drill pipe are carried in a derrick (Fig. 2b, not shown) which has fixed rackers through which a drill pipe stand 49 can be lowered down the axis of the derrick. To allow the stand 49 to be connected to the string 26, the upper end of the string 26 is centralised, i.e. aligned with the derrick axis, by means of bars 107-110 which form a square around it, and close in under the action of hydraulic rams such as 136 and 128. Preferably each bar is moved by two rams, one pivoted to each end of the bar, and the rams are operated in two sets (e.g. the rams for the bars 107, 108 form one set and those for the other two bars form the other set). Each set is supplied from one pump under the control of a position detector which operates a valve to stop the bars when they are a pipe radius away from the axis. The position detector (Figs. 9-11, not shown) consists of a housing containing a number of microswitches operated by abutments (156) on a rotary arm. The arm is fixed to a drum which is spring-biassed to rotate in one direction, and connected by a cable to one of the centering bars, so that as the bar is extended to centre the drill string the drum is rotated and the arm sweeps over the microswitches. The microswitches operate to close a hydraulic valve, one particular microswitch being used for the retract stroke, and a number of microswitches for the extend stroke, that appropriate to the pipe rise in use being switched into the control circuit. Hydraulic and electrical circuitry for controlling the rams is described.