baber/WOPTO huggingface dataset:
Patent GB-1357519-A (GB)
Title: Combustion boilers
IPC: F24H9/00
Filed: 1970-04-29
Abstract: 1357519 Liquid heaters; combustion air control H E BOULTER 23 April 1971 [29 April 1970] 20495/70 Headings F4A F4T and F4W A combustion boiler comprises a combustion chamber 75, Fig. 8, a fuel burner, a fan 71 arranged to impel air for combustion into chamber 75, a heat exchanger 76 in which a liquid (water) is arranged to be heated by the hot combustion gases, a substantially air-tight enclosure 70 surrounding the chamber 75, fuel burner, fan 71 and heat exchanger 76, and a balanced flue inlet/exhaust system comprising an air inlet duct 73 communicating with fan 71 (via the interior of enclosure 70) and an exhaust duct 74, the ducts 73 and 74 extending from the upper part of enclosure 70 to terminal openings lying closely adjacent to one another. The ducts 73 and 74 are parallel, with outlet duct 74 within inlet duct 73, and an automatic air controller is provided at 72. A similar controller for controlling the supply of combustion air to chamber 75 is shown in Fig. 1 and comprises a movable controller plate 18, pivoted at a horizontal pivot 16, controlling air flow through the inlet duet by varying the effective size of an aperture at the lower edges of side walls 14. The plate 18 is biased towards an open position, in this case by an adjustable weight 21, and is movable automatically in a direction to reduce air flow in response to an increased air flow or increased pressure drop across the aperture in the direction of air flow.
Patent GB-305599-A (GB)
Title: Improvements in and process for the production of alumina, sodium carbonate and hydrochloric acid
IPC: C01F7/26
Filed: 1927-08-03
Abstract: 305,599. Gareau, N. J. Aug. 3, 1927. Sodium carbonate; hydrochloric acid.-Calcined clay briquettes are supplied to a tower 10 up which passes a stream of hot gases from a furnace 13 accompanied by sulphur oxides obtained as products of decomposition from the hearth of the furnace and nitrogen oxides, and down which water is sprayed by a pipe 9. Sulphuric acid is formed and reacts with the clay to form aluminium sulphate. The silica, becomes dehydrated. The briquettes are removed from the base of the tower and are lixiviated with water containing sulphuric acid to form a solution of aluminium sulphate which is dried and calcined on the hearth of the furnace 13 to yield a product of the formula Al2O3SO3. The porous mass is ground with sodium chloride and small coal and formed into briquettes which are heated to about 300‹ C, and treated with steam to yield hydrochloric acid and are afterwards heated to a red heat in a balling furnace when sodium sulphate is reduced to sulphide with evolution of carbon dioxide which is led into the furnace 13. The briquettes are treated at a high temperature with steam yielding sodium aluminate and sulphuretted hydrogen which on burning forms sulphur dioxide which is passed into the furnace 13. The fused mass of sodium aluminate is lixiviated, when magnesium separates as insoluble magnesium aluminate. The solution of sodium aluminate is treated with the scrubbed gases issuing from the top of the tower 10 forming a precipitate of alumina and a solution of sodium carbonate. Specifications 23918/03 and 2655/04 are referred to.
Patent GB-221628-A (GB)
Title: Improvements in machines for automatically trimming and cleaning the bristles of brushes
IPC: A46D9/02
Filed: 1923-08-13
Abstract: 221,628. Briton Brush Co., Ltd., and Page, E. B. Aug. 13, 1923. Brush cleaners; brush-making machines.-A conveyor carries a series of brushes which are brought successively into contact with appliances for trimming and cleaning the bristles. As shown, a pair of endless chains 1 passing over sprocket wheels 2, 3 driven through the medium of a pulley 5 and a belt, are supported on parallel guide rails 6 which are adapted to support brushes 7 with the bristles depending. The brushes are fed into the machine at one end and are pushed along the guide rails by cross-pieces 15 on the chains 1. The brushes pass under presser bars 8 to which pressure is imparted from springs mounted in pockets 9 on a pair of castings 10. The pressure may he varied by the employment of screwed spindles 11 rotated by means of a handwheel 14, a chain 12 and sprocket wheels 13. The trimming and cleaning devices, driven mainly through the medium of a countershaft 23, comprise a rotary drum 17 with tines 18 for combing the bristles, a rough trimming cutter 20, two rotary brushes 21, and a further trimming cutter 22. Each cutter has a fixed blade and a rotating blade. The height of the cutters may be adjusted by mounting the guide rail 6, chains 1 and sprockets 2, 3 so that they may be raised or lowered with respect to the cutters.
Patent GB-294115-A (GB)
Title: Improvements in or relating to remote electric metering systems
Filed: 1928-07-16
Abstract: 294,115. Associated Electrical Industries, Ltd., (formerly Metropolitan-Vickers Electrical Co., Ltd.), (Assignees of Conrad, F.). July 15, 1927, [Convention date]. Current and pressure meters; pressure and current at distance places, measuring; meters with rectifiers.-The current or pressure of an alternating-current circuit is measured at a distance by rectifying a current proportional to the current or pressure to be measured and supplying the rectified current to a direct-current measuring-instrument. Apparatus is shown for measuring on a distant instrument 8, the current supplied by an alternating-current generator 3 to a load 4. This current may be proportional to some other quantity to be measured, and the instrument 8 may be calibrated in terms of that quantity. A rectifying unit 6 is supplied from a current transformer 5, the rectified current being supplied to the distant instrument 8, for example through telephone wires. The rectifying unit 96 comprises a number of devices 9, which preferably consist of copper or other metal plates coated with a compound of the metal, such as cuprous oxide, on which is placed a second electrode comprising one or more sheets off a soft conductor such as lead foil. On this is placed another plate of copper and the elements are pressed together. Specification 194,653, [Class 38 (ii), Electric currents, Converting &c.], is referred to. The Specification as open to inspection under Sect. 91 (3) (a.) states also that the rectified current may be supplied to an integrating or graphic meter. This subject-matter does not appear in the Specification as accepted.
Patent GB-1136018-A (GB)
Title: Improvements in or relating to cryogenic vaporizers
IPC: F17C9/02
Filed: 1966-05-10
Abstract: 1,136,018. Heat exchanger tubes; revaporizers. GENERAL DYNAMICS CORP. 10  May, 1966 [13 May, 1965], No. 20575/66. Headings F4P and F4S. A cryogenic vaporizer comprises a circular row of vertically extending, externally finned heat exchange tubes interconnected in series or in parallel to form a flow path between an inlet 10 and outlet 12. A plurality of fins is associated with each tube and these extend vertically and are formed from a single sheet, this being bent into the shape of a regular triangle having a pipe such as 52 as apex with the two sides (58, 59) defining the apex being made to extend past the pipe to form diverging fins 60 and 61. The pipes are preferably made of brass and the fins of copper or any other metal having a thermal conductivity which increases with decreasing temperature. Flowing through the compound exchanger, the outer wall of which is defined by arranging side-by-side the bases of all the triangular fin members, is a stream of air at ambient temperature, this being provided by a fan (80) disposed above said exchanger. A liquefied gas supplied to inlet 10 is said to be efficiently vaporized before reaching the outlet 12, this efficient heat transfer being attributed to both the arrangement of the fins and their conductivity. Both factors are said to reduce ice formation on the fins.
Patent GB-1337240-A (GB)
Title: Method and apparatus for controlling paper web caliper
IPC: D21F7/06
Filed: 1972-05-03
Abstract: 1337240 Papermaking apparatus MIDLAND-ROSS CORP 3 May 1972 [12 May 1971] 20586/72 Heading D2A Variations in the thickness of a web of paper 7 passing through a calender are removed by selectively directing hot or cold air against the surface of a roll 3 of the calender so as to respectively expand or contract the roll diameter at a region corresponding to an undesired thick or thin part of the web, while simultaneously directing cold or hot air, respectively, against regions of the roll surface adjacent the first said region. A blower 41 supplies air which passes via a heater 45, e.g. steam coils, and a cooler 49, e.g. cooling coils, to respective hot and cold air ducts 9, 11 connected to nozzles 13 by valve controlled conduits, the valves being selectively operable to darect hot or cold air through the nozzles against the roll 3. Each valve is connected via a rack and pinion drive to a remotely controlled pneumatically operated rolling diaphragm operating device 23. The nozzles are disposed in a casing 33 into which cold air is passed from the duct 11 to provide overpressure in the casing to keep out dust. The maximum temperature of the hot and cold air are 350F and 90F respectively.
Patent GB-1114002-A (GB)
Title: Improvements relating to electro-magnetic transducer heads
Inventor: SMITH HUBERT COLIN
IPC: G11B5/11
Filed: 1965-05-15
Abstract: 1,114,002. Recording and play-back B.S.R. Ltd. 12 May, 1966 [15 May, 1965], No. 20613/65. Heading G5R. An electromagnetic transducer ring-type head of the kind comprising two C cores 11, 12, contained within a screening canister 20 and having two coils 18 wound astatically thereon in series is provided with two steel screws 24, 25 adjustably mounted in the canister base in line with the legs of the cores, for varying the reluctance of flux paths from an external source through the cores. This enables hum to be reduced or eliminated.
Patent GB-446319-A (GB)
Title: Improvements in or relating to means for testing temperatures
IPC: G01K11/12
Filed: 1935-07-20
Abstract: 446,319. Thermometers. CHAPMAN, A. W., 184, Tom Lane, Fulwood, Sheffield. July 20, 1935, No. 20671. [Class 97 (iii)] An aqueous solution, which is relatively stable at ordinary temperatures but undergoes a progressive change in hydrogen ion concentration at higher temperatures, and an indicator which progressively alters in colour as the hydrogen ion concentration varies are contained in a glass or other receptacle and indicate by their change in appearance whether or not a given temperature has been reached or the period during which it has been maintained. The test material may be an aqueous solution of ethylene chlorohydrin with a buffer salt such as disodium hydrogen phosphate or sodium borate to control the rate of variation in ion concentration, the indicating part comprising a mixture of the dyes aniline blue, alizarin red S, brilliant yellow and chloro-phenol red or phenol red. At normal temperatures the indicator is red but when heated becomes brown (if chloro-phenol red is used and orange in the case of phenol red), then yellow, then yellowish green and finally a bright green. A pellet or powder of fusible material may be included in the receptacle.
Patent GB-766704-A (GB)
Title: Safety attachment for pedal cycles
IPC: B62M3/12
Filed: 1954-07-15
Abstract: 766,704. Reflectors. GALLAWAY, H. D. M. Oct. 17, 1955 [July 15, 1954], No. 20676/54. Class 3 (2). A reflector 1 for attachment to a cycle wheel is provided with tongues 2, 3 adapted tc engage adjacent spokes. The reflector may be made of metal which is polished or plated to render it reflecting or may be made of plastic material which has reflecting plates secured thereto or reflecting material plated thereon.
Patent GB-883935-A (GB)
Title: Photographic process and composition
Inventor: MORSE MEROE MARSTON
Filed: 1960-06-13
Abstract: 883,935. Photographic processes and compositions. INTERNATIONAL POLAROID CORPORATION. June 13, 1960, No. 20692/60. Drawings to Specification. Class 98(2). The silver halide transfer-reversal process, in which a complex formed from unexposed portions of an emulsion layer is caused to transfer to a receiving sheet and there produce a visible silver image, is effected in the presence of cysteine to render such image blue-black rather than sepia. The composition for this comprises an aqueous alkaline solution containing specified proportions of developing agent, silver halide solvent and the cysteine; hydroquinone and hypo together with sodium sulphite and sodium carboxymethyl cellulose being used in an example. The composition or processing fluid may itself contain the silver-precipitating agent (nuclei) for image formation. Specifications 684,592, 703,231, 714,412, 732,420, 776,634 and 811,579 are referred to.
Patent GB-727305-A (GB)
Title: Optical glass
IPC: C03C3/068
Filed: 1953-07-27
Abstract: 727,305. Glass. ZEISS-STIFTUNG, C., [trading as JENAER GLASWERK SCHOTT & GEN.]. July 27, 1953 [Aug. 8, 1952], No. 20720/53. Addition to 725,206. Class 56. The glass of the parent Specification is modified by replacing part of the B 2 O 3  by SiO 2  in such amount that the SiO 2  content exceeds the 4 per cent due to the optional addition referred to in the parent Specification but not in such amount as to cause the B 2 O 3  content to be lower than 36 per cent parts by weight.
Patent GB-1422844-A (GB)
Title: Method of and apparatus for coating strips of aluminium or  aluminium alloy with a soldering alloy
IPC: C23C2/32
Filed: 1973-05-02
Abstract: 1422844 Coating Al or Al alloy strip by hot-dipping SOC ANON DES USINES CHAUSSON 2 May 1973 [4 May 1972] 20758/73 Heading C7F An Al or Al alloy strip is coated with a brazing alloy containing e.g. Pb, Sn, Zn, Cd, Ag or Al, by hot-dipping in a bath at least one wall of which, has the strip passing close to it and is vibrated ultrasonically, e.g. by piezo-electric vibrators. The strip may be scraped or brushed or passed over a bending roller on entry into the bath and excess metal may be removed by wipers or gas jets. The vat may be of triangular cross-section, and its walls may be cooled.
Patent GB-962076-A (GB)
Title: Filtering process
IPC: B01D35/16
Filed: 1962-05-30
Abstract: In a method of drying filter residues in apparatus comprising a plurality of filter discs mounted on a vertical hollow rotatable shaft, the residue is partially dried on the filter elements before it is dislodged by high speed rotation of the shaft, and consequently falls to the bottom of the housing where it undergoes final drying. During partial drying of the residue the shaft may be rotated slowly, and agitating and disintegrating means, e.g. a bar or vanes attached to the bottom of the shaft, may be provided to break up the residue in the bottom of the housing.  The filter elements may be rotated intermittently, or continuously, whereby residue falls continually into the bottom of the housing.  Partial drying of the residue is effected in a known manner, e.g. by heating the filter elements internally by steam coils or electrical means, by blowing hot air, or gas, across, or from within, the filter elements, or by electrically heating the interior of the housing.  Final drying of the residue in the bottom of the housing may be effected by hot air or gas, which may be introduced into the housing tangentially.  The housing may be of cylindrical shape with a conical lower portion.
Patent GB-1390462-A (GB)
Title: Decorative stratified panels and similar objects
IPC: B44C5/04
Filed: 1972-05-04
Abstract: 1390462 Decorative object BERCHER SA PUBLICITE GENERALE 4 May 1972 20913/72 Heading B6G A decorative object comprises (a) a transparent support of glass or polymethyl methacrylate, (b) coloured flat cross-linked polyester resin elements adjacent the support and (c) a colourless polymethyl methacrylate outer layer covering and holding in place the polyester resin elements, the outer layer having been polymerized in situ, the layer (c) and elements (b) being on at least one of the two surfaces of the support (a). The polyester elements may be cut out of plates of polyesters having different colourings and thicknesses when the plates are in pregelled state. Alternatively, the elements may have been obtained by selectively removing parts of a polyester resin layer poured on to the support in a pregelled condition. Only one face of the support plate may be treated, or there may be applied on to the other face of the plate a coloured or white pigmented translucent coating of polymethyl methacrylate. For observation by transparency the decorative panel may be given a smooth surface by applying a final polymerizable layer optionally containing a substance having ultra-violet radiation absorption properties and which may be coloured or colourless. Alternatively the decorative panel may be given an irregular surface on either or both faces by the application of a polymethyl methacrylate layer containing protruding irregular gravel-like bodies of coloured or colourless crushed polymethyl methacrylate. The irregular surface layer may be coated with a thin layer of a solution of accelerated hardening methyl methacrylate. The objects may be viewed by direct observation in which case a non-transparent decorative panel may be fixed on a light-coloured surface or the rear face of the panel may be coated with a polymethyl methacrylate containing a white pigment. The object may further contain one or two sets of (a) a film of polymethyl methacrylate on the polyester resin elements (b) and (e) a continuous or discontinuous layer of coloured polymethyl methacrylate superposed on the film (d), the film (d) having been polymerized before application of the following layer (e), said set or sets being interposed between the layer (c) and elements (b).
Patent GB-1145704-A (GB)
Title: A bicycle attachment
IPC: B61D15/10
Filed: 1965-05-19
Abstract: 1,145,704. Railway cycles. T. KITCHIN. 4 July, 1966 [19 May, 1965], No. 21124/65. Heading B7E. A railway bicycle, pedal or powered, comprises fore and aft frames 7 and 4 respectively, supporting an outrigger wheel 1 or wheels and pivotally connected to lugs 10 on the cycle head and to a bracket 6 on the rear fork. Arms 13, 14 mounting lateral wheel keeping rollers 11, 12 are swingable in a fore and aft direction and limit stops (6A) and (15A) are provided, Fig. 4 (not shown). When the outrigger is not in use frame 7 is disconnected from the wheel frame 3 and the frames 4 and 7 pivoted forwardly and collapsed to the Fig. 4 position. A collar 17 mounts a swing bar which may be secured by a wing nut to lock the front wheel on the rail.
Patent GB-923545-A (GB)
Title: Exposure measuring device
IPC: G03B7/12
Filed: 1959-06-19
Abstract: 923,545. Photographic cameras. AGFA A.G. June 19, 1959 [June 28, 1958], No. 21210/59. Class 98 (1). In an exposure measuring or regulating device including a photoelectrically operated moving coil galvanometer with pivoted pointer and a rotary exploratory member for said pointer, the axis of the said exploratory member is parallel or approximately parallel to the plane of deflection of the pointer and the said member has for contact with an edge of the pointer a stepped helical surface which is so designed that each separate projecting step edge extending across said surface is parallel or approximately parallel to the contacting edge of the pointer at the position of contact thereof with that step edge. On depression of a release 11 in a camera as shown, a toothed rod 8, 9 is spring-pushed down, and a hollow cylindrical exploratory member 3, which is directly connected to at least one of the setting members for diaphragm and shutter speed, is rotated by gears 6 and 7 until one of its steps 4 engages a vane 20 of the pointer 18 of an exposure meter galvanometer 14, excessive deflection of the pointer 18 being prevented by a support surface 19. Further depression of the release 11 against the loading of a spring 12 then causes a control extension 13 to release the shutter (not shown). Galvanometer 14 is rotatably mounted for adjustment by a knob 16 in terms of film sensitivities, the knob and camera casing 1 respectively bearing co-operating scale and index mark. Abutment surfaces 21 and 22 at the extremities of the stepped surface 4 prevent effective movement of the exploring member 3 when light conditions are not suitable for photography. Specification 781,016 is referred to.
Patent GB-505067-A (GB)
Title: Improvements in or relating to hair drying apparatus
IPC: A45D20/22
Filed: 1938-07-18
Abstract: 505,067. Hair - drying apparatus. LECLABART, J. July 18, 1938, No. 21271. Convention date, Jan. 3. Addition to 494,549. [Class 81 (ii)] In hair-drying apparatus as described in the parent Specification, having ribs in the lower portion to break up the gyratory current of air into eddies, holes 1( communicating with the outer air tire provided either leading through the hollow ribs 3 or adjacent one side o: them, in both cases pre ferably opening on the side of the ribs opposite to that against which the air impinges. The suction of the eddies causes air to be drawn into the helmet to condition that inside and to allow the wearer to hear external sounds. The latter effect is enhanced by the apertures 12 in the flange of the helmet.. Slidably mounted strips 13 having holes 14 corresponding to those in the helmet are mounted on the outside and serve to adjust the apertures of the holes, being fastened by screws 16.
Patent GB-378629-A (GB)
Title: Improvements relating to mechanical stone breakers and the like
IPC: B02C13/26
Filed: 1931-07-25
Abstract: 378,629. Impact pulverizers. WESTWOOD, J. J., WESTWOOD, W., and DAWES, E. H., of Westwood, Dawes, & Co., Enville Street, Stourbridge, Worcestershire. July 25, 1931, No. 21329. [Class 59.] In an impact pulverizer each set of hammers k is mounted in non-rotatable connection on a shaft n on the rotor, the shaft being supported rotatably in bearings o provided in the sideplates e of the rotor. The rotor comprises side-plates e mounted on a shaft g and with wear plates f form the sides of the disintegrating chamber. The hammers k are spaced apart by discs r and the hammer heads m are reversible and are secured by a rod p. The upper part of the mill casing is formed by short lengths of rails b, stepped at the ends and secured to the casing side-plates a. Tapering blocks d form a boundary for the side-plates e of the rotor and the centre of each side-plate a is removed to facilitate removal of the hammers when replacement is necessary, The material is fed in through a hopper c and is discharged through the bottom of the casing.
Patent GB-1298491-A (GB)
Title: Foam dispensing device
IPC: B65D47/06
Filed: 1970-05-04
Abstract: 1298491 Dispensing liquids by gaseous pressure SCHERICO Ltd 4 May 1970 [5 May 1969] 21368/70 Heading F1R [Also in Division B1] A dispenser for foam comprises a container 12 for foamable liquid 48, a porous foam-forming element 32, a nozzle 34 and a check-valve 46 allowing gas to pass only inwards and defining a separate flow-path from that of the outgoing foam. The container 12 is flexible and resilient and when it is squeezed the flap valve 42 closes, foam forming liquid passes up the dip tube 24 and mixes in passageway 28 with air forced up through the passageways 26 to form a spray which passes through aperture 30 and impinges on porous element 32 whereby a foam is generated. In another embodiment, Fig. 5 (see also Figs. 4 and 6-10 (not shown)) the check-valve is a ballvalve 74, the foam forming element is a wire mesh 62 and the dispensing nozzle is integral with a cap 54 which can be rotated to put the  aperture 70 and chamber 58 out of register with the ball-valve and foam forming element respectively. Air passes up slots 66 in a bore 69 which receives the dip tube 68 and mingles with liquid from the dip tube to form a spray as before. Preferred dimensions for the various passageways are given. The apparatus is especially suitable for use in conjunction with a nozzle up to about 30 cm long to introduce a foamed medicament into a body cavity.