baber/WOPTO huggingface dataset:
Patent GB-175791-A (GB)
Title: Apparatus for delivering and spreading stone "chippings," gravel, or the like
IPC: E01C19/20
Filed: 1920-12-02
Abstract: 175,791. Jones, E., Davies, E., and Evans, S. Dec. 2, 1920. Gravel and like distributors. - Apparatus for delivering and spreading stone chippings, gravel, and the like on roads, comprises a hopper d secured to the tail of a horse or motor driven wagon and fitted with guides (not shown) which feed the material in the hopper towards an opening or openings e in the base of the hopper. The openings e are fitted with closure plates l shown as mounted to slide and provided with rack teeth r engaged by toothed quadrants q on a rod p, the manipulation of which rod effects the opening or closing of the apertures e. The plates may, however, be hinged instead of sliding. Below and loosely suspended from lugs on the bottom of the hopper are end plates f connected by oppositely inclined shelves or louvers h arranged to overlap as shown, and fitted with baffle or stop plates k, or otherwise partly encased. The number of shelves may be varied.
Patent GB-1457762-A (GB)
Title: Gas turbine engine type hot gas generators gas turbine engines
IPC: F02C7/277
Filed: 1973-07-18
Abstract: 1457762 Gas turbine plant RANKEL TURBINES Ltd 16 Oct 1974 [18 July 1973]  34275/73 Heading F1G The invention relates to a gas turbine type gas generator comprising a compressor 2, a combustion chamber 17 and a turbine 3, a chamber 9 surrounding the turbine stage, it being arranged that air delivered by the compressor flows through the chamber on its passage to the combustion chamber. The gas generator assembly comprises a base-plate 4 on which the compressor stage 2 and the turbine unit 3 are mounted. A cover 8 is associated with the base-plate to define the chamber 9 in which the compressor stage 2 and the turbine stage 3 are located. Air enters the compressor through inlet 12 and discharges through outlet 20 into the chamber 9, the air then passing over the turbine stage 3 to the combustion chamber 17. The combustion chamber comprises an outer casing 17 and an inner flame tube 18, air passing from the chamber 9 through openings 19 in a support member 5 on which the turbine stage 3 is mounted; the air passes to the annuler jacket space 22 thence into the flame tube. Combustion gases discharge from the flame tube into the turbine through inlet 6, the exhaust gases discharging from the turbine through outlet 14. The assembly is mounted on a fuel tank 29 and incorporates a hydraulic turbine starter 31 to which fuel under pressure is supplied as working fluid by pump 32 driven by motor 33, the fuel being supplied through line 34 to the starter turbine and discharging therefrom back to the tank 29. The starter turbine 31 is shown in Fig. 2 and comprises a rotor 51 secured on a shaft 52, the shaft being disposed within an  outer sleeve 54 rotatably mounted in bearings 56, 56; the shaft is connected to the sleeve by a pin and slot assembly 58, 57 whereby the shaft may move axially with respect to the sleeve but is constrained to rotate therewith. The end of the shaft is formed with face teeth which upon axial movement of the rotor 51 and shaft 52 engage corresponding face teeth on the compressor rotor 42. Thus when fuel is directed on to the blades of the starter turbine 52, the turbine rotor is moved axially also rotationally whereby the main compressor and turbine assembly 42, 38, 41 is rotated. The bearings 39, 40 of the compressor air turbine assembly are lubricated by fuel supplied through passages 44, 45, 46. A deflection plate 21 is disposed adjacent one side of the turbine unit 3 and perforated screens 27, 28 are disposed above and below so as to define a sub-chamber 26 through which air flows across the turbine unit. The sub-chamber may be filled with wire wool or gauze to increase heat transfer to the air-flow.
Patent GB-813910-A (GB)
Title: Improvements in or relating to liquid cooled grinding wheel assemblies
IPC: B24B55/02
Filed: 1955-11-30
Abstract: 813,910. Grinding. GEAR GRINDING MACHINE CO. Nov. 30, 1955 [Jan. 24, 1955], No. 34336/56. Class 60. A porous grinding wheel A has coolant liquid, e.g. water, supplied thereto from a cavity E in the spindle B, through radial ports F and a helical groove G which extends into chambers C<SP>2</SP>, C<SP>3</SP> formed by recesses in the clamping plates C, C<SP>1</SP>; sealing rings H, H<SP>1</SP> are provided. A hollow extension member I screwed into the spindle is surrounded by a non-rotating member J; ball bearings K, K<SP>1</SP> and packing L are provided ; the hollow member I communicates with a chamber J<SP>1</SP> in the member J to which coolant liquid is supplied through conduit M.
Patent GB-927806-A (GB)
Title: Improvements in stells or staking devices for mines
Inventor: ROOK JACK
IPC: B66F3/24
Filed: 1960-10-10
Abstract: 927,806. Pushing jacks. A. G. WILD & CO. Ltd. Jan. 3, 1962 [Oct. 10, 1960], No. 34591/60. Class 78 (3). A stell for use in mines in conjunction with a conveyer-advancing floor jack 20, 22 comprises a telescopic upper portion 10, 10<SP>1</SP> adapted to be adjusted by hand and a lower portion consisting of a second hydraulic jack 11 12 coupled to the control valve 31 of the floor jack for simultaneous actuation. The upper and lower parts of the stell are connected by a block 13 to which one or more spring-loaded balancing plungers 24 are attached. The upper part of the stell is positioned by pin and slot engagement means and is provided with a serrated roof cap 16.
Patent GB-391253-A (GB)
Title: Improvements in or relating to the production of projections on the surface of extruded rubber articles
IPC: B29C37/00
Filed: 1931-12-15
Abstract: 391,253. Extruding rubber articles. GARE, T. and GARE, G., c/o Hazel Grove Rubber Co., Bramhall Moor Lane, Stockport. Dec. 15, 1931, No. 34699. [Class 87 (ii).] Ribs formed on extruded rubber articles by the extrusion nozzle are converted into studs by moving moulds which operate before the articles have attained their final degree of elasticity. The extrusion nozzle 1 is formed with longitudinal internal ribs 4 and has a projecting lip 2 which is detachably secured thereto by screws 23 and forms a guide channel 3 to support the tyre &c. extruded from the nozzle 1. A wheel 5 is adjustably mounted in slots 7 in a bracket 8, detachably fitted on the nozzle 1. The periphery of the wheel 5 has a number of blunt cross ribs 12, 13 which are pressed into the surface of the extruded rubber to mould it. The ribs 12, 13 may either be offset or may extend right across the wheel. If more than one surface is required to be moulded, as in pedal rubbers, several wheels 5 may be employed and the lip 2 may be dispensed with. The nozzle 1 and wheel 5 may be heated by a burner or jacket. Either revulcanized waste rubber or fresh rubber dough may be used.
Patent GB-1015057-A (GB)
Title: Improvements in and relating to optical masers or lasers
IPC: H04B10/291
Filed: 1962-09-11
Abstract: The active medium of a laser comprises a glass containing from 0.01 to 30% of a fluorescent material, the term glass being used to mean any transparent non-crystalline, organic or inorganic host material. The fluorescent material may be one or more of the elements neodymium+++, praseodymium+++, samarium++, samarium+++, europium++, europium+++, uranium+++, terbium+++, holmium+++, erbium+++, thulium+++, dysposium+++, ytterbium+++ and cerium+++.  The doping material may be added to organic glasses either as free ions or as compounds such as neodymium acetate, neodymium chloride or neodymium chelate.  The host material may be a true glass such as schott glass, soda lime glass, barium crown glass, flint glass, lead glass or arsenic trisulphide glass.  Other true glasses are sodium borate, aluminium zinc phosphate, lead silicate, sodium borosilicate, germanate and beryllium fluoride glass.  Alternatively, the host material may be an organic glass including plastics solid at room temperature such as methyl methacrylate, acrylics and vinyl chlorides. Other glassy materials are glycerine and other devitrified sugar substances, or mixtures of organic solutions which form clear solid glasses when cooled to a low temperature such as E.P.A. (ether, isopentan and alcohol).
Patent GB-794803-A (GB)
Title: Process for converting naphthalic acid into naphthalene-2:6-dicarboxylic acid
IPC: C07C51/41
Filed: 1956-11-15
Abstract: A modification of the process for the conversion of naphthalic acid into naphthalene-2 : 6-dicarboxylic acid claimed in the parent Specification is characterized in that the reaction is carried out in the presence of a gas or vapour, inert at the reaction temperature, other than carbon dioxide.  Gases and vapours specified are nitrogen, the inert gases, methane, ethane, propane and benzene vapour.  The process may be conducted in the presence of an inert liquid such as diphenyloxide.  Cadmium fluoride may be present as a catalyst.  In an example, di-potassium naphthalate and cadmium fluoride are heated under pressure of nitrogen, the product dissolved in water and naphthalene-2 : 6-dicarboxylic acid obtained by acidification.
Patent GB-176876-A (GB)
Title: Improvements in means for heating sheets in feeding and delivering them to and from machines
IPC: B41F23/00
Filed: 1920-12-13
Abstract: 176,876. Doyle, J. E. Dec. 13, 1920. Drying - apparatus in printing - machines.-An electrical device for heating sheets in feeding and delivering them to and from machines, comprises an incandescent body consisting of a plurality of independently energizable units. In one form, heating units A, B, C, D, Fig. 4, are mounted in a casing 26 fixed in proximitv to a pair of rollers delivering printed sheets to diagonal rotating rollers which carry the sheets against an adjustable side guide and so to folding-rollers, the sheets therefore passing over the heaters in an inclined direction. Each unit comprises two superimposed porcelain members 28, 30, Fig. 10, the latter carrying in grooves 31 a resistance wire 35 connected to terminal screws, to the lower ends of which are brazed leads 34 carried in the two end grooves of the lower member 28. U- shaped covers 37 are screwed to the casing at the junctions of the units. Switches 40, Fig. 11, controlling the current for the pairs of units I, C and A, B respectively, may be so positioned that any one or any group of the units may be energized. Fig. 3 shows one heater H fixed bv clamps to the frame 101 over the heater, and another H<1> clamped on a travelling carriage 116 reciprocated by rods 111, 114, grippers 118 on the carriage receiving the sheets from the tapes 107 and delivering them to the table 108. A modified form of heater, Fig. 16, may be applied to the machine shown in Fig 3 and secured, so as to be adjustable with respect to the path of the sheet, by clamps 224, 225, to a depending bar 221 of the carriage 116. a series of webbed fingers H23 fixed to the bar supporting the sheets as they pass over the heating-units. The latter consist of coils 256 wound on insulating spools 254 provided with terminals 255 and adapted to be sprung into position between the terminal ends 241, 242 of spring arms 240, 243 passing through insulating insets 232, 234 in a copper shield 231 carried by concave extensions 230 of the clamps 224. The inner surface of the shield 231 is polished and acts as a heat radiator. The arms 240, 243 are connected respectively to bars 248, 251 connected in turn to the leads 250, 252 of a current supply, the bars 248 being bent to avoid the fingers 223. This modified form may also be clamped to a fixed bar in the position of the heater H, Fig. 3 with a fly-bar delivery in place of the carriage delivery.
Patent GB-421761-A (GB)
Title: Cowling for aircraft engines
IPC: F01P7/02
Filed: 1933-12-13
Abstract: 421,761. Cooling cylinders. ARMSTRONG SIDDELEY MOTORS, Ltd., and REYNOLDS, R., Park Side, Coventry. Dec. 13, 1933, No. 35054. [Class 7 (ii)] [See also Group XXXIII] An air-cooled star-stype aircraft engine 13 is surrounded by an annular sheet-metal cowling 12 approximating in shape to an N.A.C.A. cowling or Townend ring and which is provided with a radial flange 17 of single thickness or of V or other section in order to prevent excessive flow of air along the inside wall of the cowling, the flange being attached to a circular band 18 lying flat over the cylinder heads. An gap 15 between the cowling and fuselage 14 forms the exit for the flow of air which enters through the open end 19 of the cowling. The flange 17 is cut away to receive the valve mechanism or rocker casings. The cowling may be built up in two or more sections.
Patent GB-605528-A (GB)
Title: Improvements relating to windows permitting the transmission of sound
IPC: E06B7/30
Filed: 1945-12-28
Abstract: 605,528. Sound-transmitting diaphragms. PEDERSEN, J. B. M. Dec. 28, 1945, No. 35057. Convention date, Dec. 14, 1943. [Class 40 (iv)] [Also in Group X] A transparent or other sound-transmitting window is glazed by a film, of viscose or cellulose acetate for example, which is tensioned by a frame pressed against it by springs or other means. As shown, the film 8 is clamped between the frames 6 and 7 and tensioned by the movable frame 3 which is slidable on the guides 4 to and from the fixed frame .2 and pressed against the film by the springs 5. The frame 2 is secured to the outer or setting frame 1, both being clamped over the flange the like of an opening. A cover 9 protects the film when not in use. The frames are preferably circular. Hand-operated adjusting means may be substituted for the springs, or a coil spring of the same diameter as the frame 3 may be substituted for it and the springs.
Patent GB-1075949-A (GB)
Title: Improvements in closures for containers
IPC: B65D41/48
Filed: 1964-08-26
Abstract: 1,075,949. Container closures. P. S. VAN BAARN. Aug. 26, 1964 [Oct. 21, 1963], No. 35066/64. Heading B8T. A container closure of a resilient material comprises a lid 7 to embrace and seal the container mouth and an anchor band 4 permanently engaged around the container neck 18 below the lid 7, the lid 7 being attached to the anchor band 4 by a hinge 3 and the lid 7 being provided with a plurality of annular sealing ribs each simultaneously engageable with a separate zone of the container neck 18 to minimize leakage. The lid 7 is provided with two ribs, 14 and 16, engageable with a groove 15 and the rim 17 respectively to provide two seals, and an internal skirt 19 having a rib 20 provides a third seal as shown. Initially the lid 7 and the anchor band 4 are joined along their circumferences by a tear strip. A resilient catch is provided comprising a single lug 12 and a pair of lugs 10, the lugs having interongageable ears to hold the lid open (Fig. 4). The positions of the lug 12 and the lugs 10 can be reversed. In a modification (Fig. 6), the catch is instead provided by a plate or prong (21) depending from the inside of the lid 7, which, when the lid is open, presses against the rim 17 and thus supports the lid.
Patent GB-1190797-A (GB)
Title: Process and Device for the Wet Treatment of Liquid-Permeable Materials
IPC: D06B3/20
Filed: 1967-07-31
Abstract: 1,190,797. Treating a web with liquid. VEPA A.G. 31 July, 1967 [30 July, 1966; 31 Aug., 1966], No. 35066/67. Heading D1L. A web of textile material is treated with a liquid by passage round the lower or upper side of a gravity flow sieve drum partially or completely immersed in a liquid. Before or after passing round the lower side, the material may 'be pulsated with liquid by an element 19 (Fig. 3) or sprayed with liquid from tubes 20 (Fig. 5). When passed round the upper side, the material may be sprinkled with liquid from a container 22 (Fig. 4).
Patent GB-783944-A (GB)
Title: Organic sulphur compounds and compositions containing the same
IPC: C07D341/00
Filed: 1955-12-07
Abstract: The invention comprises an addition product of 1 mol. of trithiane and 1-2 mols. of a sulphenyl chloride RSCl, in which R is a hydrocarbon radical of 1-10 carbon atoms and contains at least one halo- or nitro-substituent, obtained by mixing the compounds with or without a solvent.  In examples trithiane gives addition products with trichloromethane sulphenyl chloride, containing about 1.65 mols. of the latter, chloromethane sulphenyl chloride, 4-chlorobenzene sulphenyl chloride, and 2-nitrobenzene sulphenyl chloride; the products make insecticidal compositions. Other derivatives of the sulphenyl chloride component include dichlorobenzene-, chloro-alkylbenzene-, chlorocyclohexane -, nitro - alkylbenzene -, nitro - chloro - benzene - and nitro - chlorophenylmethane-sulphenyl chlorides.ALSO:Biological toxicants (insecticides, herbicides, fungicides, pastericides) comprise addition products of trithiane and sulphenyl chlorides of formula R.SCl in which R is a hydrocarbon radical of 1-10 carbon atoms and is substituted by halogen or nitro (see Group IV (b)), and liquid or solid diluents.  Examples give solutions of the adduct of trithiane and trichloromethane sulphenyl chloride in cyclohexanone for emulsions with emulsifying agents for spraying, and in a non-toxic solvent for bacteriostatic, fungicidal, and insecticidal tests; the adduct of 2-nitrobenzenesulphenyl chloride and trithiane is tested in aqueous solution.
Patent GB-1391266-A (GB)
Title: Gear pumps
IPC: F04C15/00
Filed: 1971-07-27
Abstract: 1391266 Rotary positive-displacement pumps JOSEPH LUCAS (INDUSTRIES) Ltd 25 July 1972 [27 July 1971] 35316/71 Heading F1F An externally meshing gear pump comprises two pairs of bearings, each pair engaging opposite sides of a respective one of the gears, and each bearing, Fig. 4, having a part-cylindrical surface 24 centred on the gear axis and a flat surface 25, the surface 24 being undercut from an axial line X down to the flat face 25. The undercut surface 26 thus formed is also part-cylindrical and has a radius of curvature equal to that of surface 24 but centred on an axis Y offset from the gear axis. The flat faces 25 of adjacent bearings 18, 20 engage each other. The line X forms a line pivot on the wall of the respective bore and the resultant force P on the bearing from the high pressure side 14 acts on the bearing about line X to urge the face 25 firmly against the engaging face 25 of the adjacent bearing.
Patent GB-782282-A (GB)
Title: Improvements in or relating to variable tuning control systems
Inventor: TATE CLIFFORD EDWARD
IPC: H03J7/30
Filed: 1954-12-07
Abstract: 782,282. Automatic frequency control systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Aug. 15, 1955 [Dec. 7, 1954], No. 35360/54. Class 38 (4).  The tuning dial calibration of a superhet receiver is automatically corrected at each of the check points provided'by a crystal oscillator, by temporarily locking the dial each time a check point is reached during manual tuning and automatically tuning the receiver (independently of the dial setting) by means of an erroractuated servomotor until aligned with the appropriate crystal harmonic frequency. The tuning dial (not shown) is driven from a cam disc 10 which is manually controlled through a friction disc 9 and handle 8. The cam disc 10 carries as many projections 11 as there are check points round the dial (one only is shown for simplicity) and corresponding locking- notches 12. The receiver is conventional and has R.F. stages 1 and local oscillator 5 tuned by a shaft 6 driven via a differential 30 by the disc 10. On reaching a check point, cam projection 11 changes over contact 13 to the position shown so that relay A is momentarily energized. as condenser 21 charges. Relay contact A1 energizes a solenoid 18 which pulls the detent 16 into the locking notch 12, and a slow-release relay B which prepares a holding circuit over contact B1, switches in the crystalcontrolled multivibrator 22 over contact B2, and connects a frequency discriminator 23 to the I.F. stage 3 over contact B3. The amplified error signal from the discriminator 23 energizes a relay C which maintains the relay B and solenoid 18 over contact C1, and energizes a clutch 27, 28 over contact C2 so that a reversible servomotor 25, also energized from the discriminator ,23 can derive the receiver tuning through the differential 30 to remove any error. In the absence of an error signal, relay C releases thereby releasing relay B and solenoid 18 and the automatic control system is disconnected. It is stated that the receiver may be remotely controlled through repeaters.
Patent GB-1383549-A (GB)
Title: Optical communications systems
IPC: G02B6/42
Filed: 1972-07-28
Abstract: 1383549 Lasers POST OFFICE 9 July 1973 [28 July 1972] 35372/72 Heading H1C In a laser in which a resonator is formed by first and second reflective surfaces, a bloomed coating is deposited on the second surface to reduce the reflectivity to such an extent that the lasing action just terminates, and a reflective surface formed by the end of an optical waveguide is positioned near the second surface to restore the lasing action. A GaAs laser 2 which may be a heterostructure is shown in Fig. 2, one end 1 being reflectively coated with silver, aluminium or a multiple dielectric layer and the other end having a deposited bloomed coating 3 approximately #/4 thick. Positioned adjacent the coated,end is a dielectric waveguide 6 which may be a clad fibre with a tapered end as shown, the planar end surface 8 of the fibre providing a reflective surface for restoring the lasing action. To optimize the optical coupling the end of clad optical fibre 6 may be tapered as shown in Fig. 3a so that the core 7 terminates before the cladding. Alternatively an imtapered dielectric optical waveguide, Fig. 3b (not shown), having a large difference in refractive indices of the core and cladding may be used, the end of the core alone providing the reflecting surface. This waveguide may be of circular cross-section or of flattened cross-section such as elliptical, Fig. 4b (not shown). With all forms of coupling between waveguide and laser disclosed the lasing region within the semi-conductor is substantially reduced.
Patent GB-677714-A (GB)
Title: A method of moulding reinforced concrete
IPC: E02D29/00
Filed: 1947-12-31
Abstract: 677,714. Consolidating concrete by vibrators. KEYSER, C. DE. Dec. 31, 1947 [Nov. 6, 1942], No. 35407/47. Class 86 The reinforcing wires 1, Fig. 1, of reinforced concrete are vibrated to ensure homogeneity of the concrete by means of bars 2, in contact with the wires and vibrated by a vibrator 6 and which are finally left in the concrete. The vibrator 6 also vibrates the shuttering. The invention is shown applied to a beam and a column. One or two bars 2 may be interlaced with a row of wires as in Figs. 3, 4 (not shown). In Fig. 5 the vibrations are transmitted indirectly, the bars 2 being in contact with bars 23, which form an additional reinforcement, and are connected by bars 3, 4 to the vibrator 6. The invention is shown applied to the construction of an air raid shelter, Fig. 7 (not shown), in which a number of vibrators is used which may be controlled from a single control post. The application to a bridge is also shown.
Patent GB-926360-A (GB)
Title: An oil-cooler arrangement for internal combustion engines cooled by forced air convection
IPC: F01P11/08
Filed: 1960-10-17
Abstract: 926,360. Centrifugal blowers. BAYERISCHE MOTOREN WERKE A.G. Oct. 17, 1960 [Oct 17, 1959], No. 35497/60. Class 110 (1). [Also in Groups XIII and XXVII] A tubular oil cooler 7 for an I.C. engine is wound helically in coils around the inside wall of the casing 1 of the blower that supplies air, through ducts 5 and 6, to cool the engine cylinders. The coils are offset axially from the blower impeller 3 and are formed integrally with inlet and discharge pipes 8, 9 passing through the casing cover 2 within plastic or rubber grommets 16. The coils are held in place by clips 12 lined with resilient material. Each clip 12 is fastened at one end to the casing 1 by a screw and clamped at the other end between the casing 1 and the cover 2.