baber/WOPTO huggingface dataset:
Patent GB-566278-A (GB)
Title: Improvements in or relating to means for the indication of infra-red radiation
IPC: H01G2/00
Filed: 1943-06-21
Abstract: 566,278. Light-sensitive cells. ROTHSCHILD, S., and CATHODEON, Ltd. June 21, 1943, No. 13505. [Class 40 (iii)] [Also in Group III] The light-sensitive material for a cell for detecting or measuring infra-red radiation by variations of conductivity or electromotive force comprises any one or any mixture of the following compounds, namely sulphides of zinc and cadmium, and cadmium selenide, the selected compound or mixture of compounds having been heated in the presence of a halide salt and a trace of a metal compound in an inert atmosphere up to a temperature of about 1000‹ C. For detecting or measuring the infra-red radiation by variations of dielectric constant, the material selected is zinc-cadmium sulphide or cadmium sulphide. The material may be applied over spaced wire coils wound in double-spiral formation on a mica plate. The material may be mixed with a non-conducting binder such as polystyrene solution. The coated plate 1, Fig. 2, may be enclosed in an evacuated glass bulb 14, and may be heated by a coil 13 to reduce time lag. A suitable cadmium selenide is prepared by passing sulphur dioxide through a warm solution of sodium carbonate to saturation. Red selenium is mixed with this solution until no more dissolves. A solution of pure cadmium sulphate is slowly dripped into the selenium solution until an orange colouration appears. The mixture is boiled for about 20 minutes and then left standing for 2 hours. The precipitate of cadmium selenide then formed is filtered, washed and dried. This process differs from the process described in Specification 522,860, in that a high-pressure oven is not used. Specification 311,662, [Class 40 (iii)], also is referred to.
Patent GB-135283-A (GB)
IPC: B21B1/02
Abstract: 135,283. Gasche, F. G. Nov. 19, 1918. Rolling.-Metal ingots are treated to form blooms by pushing the heated ingots in a plastic state through a preferably closed die, the walls, sides, or faces of which are formed of members in the form of centrallymounted rolls free to rotate about fixed axes. As shown, a heated ingot is pushed between a pair of rolls 13, 13<1> formed with V-grooves 15, 15<1> which produce a pass of square or diamond shape, which shape is given to the bloom. Two sets of rolls 'may be arranged in tandem for successively treating the same ingot.
Patent GB-973705-A (GB)
Title: Low noise amplifier system
IPC: H03F7/04
Filed: 1961-04-14
Abstract: 973,705. Parametric amplifiers; radarreceiving systems. STANDARD TELEPHONES & CABLES Ltd. April 14, 1961 [April 21, 1960], No. 13574/61. Headings H3B and H4L. In a parametric amplifier, which may comprise a semi-conductor diode of variable capacity, the idling frequency fp-fs of a first amplifier is used as the output to add the conversion gain (fp-fs)/fs to the gain due to negative resistance. The output is converted back to the original signal frequency fs by similar amplifiers and is made independent of the pumping frequency fp and of an auxiliary frequency f 2 . Stabilization of the pumping frequency is then of less importance. In Fig. 1, an output f 1 =fp-fs is derived from an amplifier 1 driven by a pumping frequency fp and fed by a signal fs. A second amplifier 5 driven by the same pump and fed with a fixed frequency f 2  has an output f 3 =fp-f 2 . Outputs f 1 , f 3  are mixed in a mixer 6 which has an output f 4 =fs-f 2  or f 2 -fs. Output f 4  is amplified in a third amplifier 7 using frequency f 2  for pumping. The output frequency f's is, the same as the original signal frequency fs. Diversity receivers.-Two amplifying circuits, each like the circuit of Fig. 1, have a common pump oscillator 15. The outputs f 4  of the two circuits receiving signals fs 1 , fs 2  are combined in phase in a combiner 22. Amplifier 26 is also common to the two circuits and corresponds to amplifier 7 of Fig. 1. The two outputs f 4  fed to the combiner 22 are kept in phase by a phase comparator 25 which compares the phases of the two outputs and controls auxiliary oscillators 18, 19 producing auxiliary frequencies f<SP>1</SP> 2 , f 2  to keep the output f 4  in phase. Delay lines may be included in amplifiers 23, 24 feeding the combiner 22 to enable the time delays in the two paths to be made equal. The signals fs 1 , fs 2  may be derived from the channels of a space diversity system, of a frequency diversity system of a time diversity system, or of an angle diversity system. A quadruple diversity combining system is described.
Patent GB-552994-A (GB)
Title: Improvements in or relating to the reinforcement of asbestos-cement sheets
IPC: B28B1/52
Filed: 1941-10-22
Abstract: 552,994. Reinforced asbestos-cement sheets. HURDEN, E. Oct. 22, 1941, No. 13594. Drawings to Specification. [Class 96] [Also in Group X] Corrugated asbestos-cement sheets are reinforced by flexible metal tapes, or bands, e.g. as soft tough wire, inserted parallel with the corrugations and where strengthening is or may be needed, and which are sinuous or coiled, as to allow the reinforcement to yield and gradually take up strain without breaking if the asbestoscement should break. Specifications 281,443, [Class 87 (i)], and 371,956 are referred to. Reference has been directed by the Comptroller to Specification 371,956.
Patent GB-1169494-A (GB)
Title: Foam Destruction Device.
IPC: B01D19/02
Filed: 1968-03-21
Abstract: 1,169,494. Mixing and aeration of liquids. AFICO S.A. 21 March, 1968 [13 April, 19671, No.13613/68. Heading B1C. [Also in Division C6] A foam destruction device for a reaction vessel comprises a chamber within the vessel having an upper opening, a lower opening, an upwardly and outwardly flared interior wall and a base, and a rotatable impeller disposed within or below the base of the chamber; the perimeter of the upper opening is above the normal level of liquid in the reaction vessel during operation so that no bulk liquid flows from the outside of the chamber to the inside. The impeller may be a propeller 3, Fig. 1, mounted on a tubular shaft 4 rotated independently of a shaft 5 for a stirrer (not shown), or a lifter turbine 12, Fig. 2. Deflectors 15 direct the flow of foam towards the interior of the funnel. The gap e, Fig. 1, separating the funnel from the wall of vessel is between 0.10 and 0.15 the interior diameter of the vessel. Mention is made of the fermentation or culture of aerobic microorganisms on liquid or semi-liquid substrates.
Patent GB-563935-A (GB)
Title: Improvements in or relating to autographic registers and like recording apparatus
IPC: B41L5/00
Filed: 1942-09-29
Abstract: 563,935. Autographic registers. WILLIAMS, W. P. (Standard Register Co.). Sept. 29, 1942, No. 13679. [Class 106 (i)] [Also in Group XV] A recording apparatus for producing in sequence upon a common record sheet duplicate entries of indicia entered in any one of a plurality of entry spaces upon an individual record sheet of an interchangeable plurality thereof, comprises a device for progressively feeding the common record sheet to present the succeeding sequential record receiving spaces thereon into record receiving position, a carrier for the individual record sheet adjustable longitudinally bf the common record sheet so a,s to present a selected record space on the inserted individual record sheet in record receiving position, and means automatically ensuring that the succeeding sequential record receiving space of the common record sheet is then in registry therewith in the record receiving position, there being a stratum of transfer material interposed between the respective sheets. A ledger card and a customer's duplicate 36 are inserted into the enlarged opening 33 of a carrier 30, movable over a folded record strip 14. The carrier is moved longitudinally to bring the appropriate space under the usual writing space 4 and a record is made on the top card 36 and through carbons on the lower card and the record strip. A plate 39 prevents removal of the cards 36 when in recording position, and when the carrier is returned to change the cards, it actuates a spring-pressed pawl 20 to step on a ratchet 19 to advance the record strip and the carbons. The upper carbon 15, Fig. 8, may be interleaved with a flap 38 on a central tongue 35 so as not to interfere with the cards on insertion.
Patent GB-200971-A (GB)
Title: Improvements in or relating to sprinkler heads
IPC: A62C37/12
Filed: 1922-05-15
Abstract: 200,971. Whelan, J., and Asling, D. I. May 15, 1922. Fusible sprinkler heads, of the type adapted to be operated either by the heat of a fire or by the heat of an electric resistance connected to a distant switch, comprise a cap 4 pivoted to a lever 18 and attached by a fusible seat 5 of solder &c. to a dome-shaped head 2, the electric heater 7 being connected to leads 10 and wound around a grooved insulating-ring on a member 6, which is surrounded by a heat-retaining insulating-cup 9. A plug 12 of porcelain &c. is normally retained by a spring 14 and a wax filling 13. When the fusible seal 5 melts, the lever 18 turns about its pivot 18a on a flange 3 under the action of a spring 21 and removes the cap 4 from the head 2, the pressure of the water expelling the wax 13 and plug 12. A spreader 17 is carried by a bracket 16 depending from the flange 3.
Patent GB-445227-A (GB)
Title: Improvements in or relating to electro-magnetic coils
IPC: H01F17/04
Filed: 1935-05-10
Abstract: 445,227. Inductances. BOSCH AKT.- GES., R., 4, Militõrstrasse, Stuttgart, Germany. May 10, 1935, Nos. 13759, 13760, and 13761. Convention dates, May 14, 1934, Nov. 13, 1934, and Jan. 30, 1935. [Class 37] A high-frequency coil has a coil body of insulating material with which engages a screwthreaded core of finely divided insulated magnetic particles. As shown in Fig. 1, the coil body 8 has internal projections 9 engaging a screw thread moulded on the core 10 so that this may be screwed along for varying the inductance of the coil 11. The projections 9 may consist of guide-pins, of one or more threads, or of depressions pressed in the tube 8 from the outside. In the construction shown in Fig. 2, slots 14, 15 are formed in the tubular coil-carrier 12 in which a wire fork 24, or a U-shaped yoke of hard paper or other insulating material is inserted so as to engage the threads on the core 18, which may be adjusted by inserting a screwdriver in a slot 20. The slots 14, 15 are staggered to correspond with the threads of the screw. The fork 24 may be replaced by one or more springy wire pieces 44,. Fig. 9, bent into not more than a semicircle. The tubular coil-carrier 39 may be inserted into a U-shaped insulating piece 40, into the legs of which the ends of the wire 44 may be secured.
Patent GB-655159-A (GB)
Title: Improvements in or relating to methods and means for the recording and reproduction of sound
IPC: G11B7/00
Filed: 1947-05-23
Abstract: 655,159. Recording and reproducing sound. ANGLOCENTROP INDUSTRIAL & RURAL CRAFT CO., Ltd., and KAROLY, P. May 23, 1947, No. 13897. [Class 40 (ii)] The current representing a complex sound is analysed by filters to obtain a plurality of predetermined frequency components, which are rectified, the rectified signals being recorded in contiguous strips on a carrier. For reproduction, the records are used to modulate light from alternating sources falling on a light-responsive sound reproducing device. In one reproducing device the record comprises a strip 9, Fig. 2, bearing a plurality of contiguous records, for example of variable density or variable width, 20 ... 24, Figs. 4, 5. A rotating drum 12 carries endless sound tracks which produce currents in the photo-electric cell 13, of frequencies corresponding to the recorded spectral components and the amplitude of which is controlled by the record strip 9, passing a strip 7 illuminated by lamp 4 and optical system 5, 6. The amplitudes of the sound tracks on drum 12 may vary logarithmically with frequency. The record may alternatively have its control images arranged in separate successive lines, like printed text. The sound frequency generation may be generated by producing sinusoidal light oscillations on the screen of a cathoderay tube. Specification 412,206 is referred to.
Patent GB-107137-A (GB)
Title: Improvements in or relating to Toys.
Inventor: MCCART JOHN
IPC: A63H3/18
Filed: 1916-10-02
Abstract: 107,137. McCart, J. Oct. 2, 1916. Mechanical toys. - Relates to acrobatic toys and comprises the representation of a human figure with its arms extended in opposite directions and movable in a vertical plane so as to throw a small figure from one hand to the other over the head of the main figure. The arms 3 of the main figure are pivoted at 4 to the front of the body portion 1, and the small figure is pivoted to the bent end 15 of a wire 9 which crosses either arm or hand 7, engaging the upper side thereof, and is pivoted at 10 to the back of the body 1. By jerking upon the finger-ring 14 at the end of the cord 12, which is connected by cords 11 to the inner ends of the arms 3, the rod 9 and the small figure 8 are thrown from one hand to the other of the main figure. Cleats 5 secured to the body 1 limit the downward movement of the arms 3.
Patent GB-846483-A (GB)
Title: Improvements in or relating to processes for the production of low permeability carbon
Inventor: BOYLAND DONALD ARTHUR
Filed: 1957-05-02
Abstract: The permeability of a carbon or graphite body is decreased by the deposition thereon of carbon from a gaseous or vaporous carbon compound by thermal decomposition.  The carbon may also be deposited within the pores of the body.  The body is then heated to a sufficient temperature to drive off any volatile matter in the carbon deposit and optionally to a sufficient temperature, e.g. 3,000 DEG C., to graphitise the deposit.  The body may be heated by passing an electric current therethrough, by induction, or in a resistance furnace.  The carbon compound may be acetylene, methane, propane, a mixture of 0.25-1 part of acetylene to 1 part of methane, or benzene. In the case of the above gaseous carbon compounds the heating may be at a temperature of 500-1500 DEG C. for a period of up to 2 hrs. Deposition and graphitisation may be repeated alternately a number of times.  Increased pressure and catalysts may be employed.  The surface coating of deposited carbon may be burnt off, and deposition repeated to increase the degree of impregation.  Two examples are given, one involving the passage of propane through a graphite body in the form of a hollow cylinder closed at one end, and the other involving the passage of a mixture of equal volumes of acetylene and methane over a graphite cylinder.ALSO:The permeability of a carbon or graphite body is decreased by the deposition thereon of carbon from a gaseous or vaporous carbon compound by thermal decomposition.  The carbon may also be deposited within the pores of the body.  The body is then heated to a sufficient temperature to drive off any volatile matter in the carbon deposit and optionally to a sufficient temperature, e.g. 3000 DEG C., to graphitize the deposit.  The body may be heated by passing an electric current therethrough, by induction, or in a resistance furnace.  The carbon compound may be acetylene, methane, propane, a mixture of 0.25-1 part of acetylene to 1 part of methane, or benzene.  In the case of the above gaseous carbon compounds the heating may be at a temperature of 500-1500 DEG C. for a period of up to 2 hours.  Deposition and graphitization may be repeated alternately a number of times.  Increased pressure and catalysts may be employed.  The surface coating of deposited carbon may be burnt off, and deposition repeated to increase the degree of impregnation.  Two examples are given, one involving the passage of propane through a graphite body in the form of a hollow cylinder closed at one end, and the other involving the passage of a mixture of equal volumes of acetylene and methane over a graphite cylinder.
Patent GB-737333-A (GB)
Title: Improvements in, or relating to, fluid mixing valves
Inventor: BARKER CLIFFORD LEWIS
IPC: G05D23/13
Filed: 1953-05-20
Abstract: 737,333. Valves. WALKER CROSWELLER & CO., Ltd. May 12, 1954 [May 20, 1953], No. 14120/53. Class 135. In a fluid mixing valve in which a valve is adjusted by a knob 5 mounted on a spindle 6, a reduction gear within the knob is interposed between the knob and spindle. The knob is splined to an internally coned cap 11 movable axially and rotatably on the spindle and pressed by spring 14 on to balls 18 freely carried by a cage 17 secured to the spindle, the balls also frictionally engaging a casing boss 16. A bimetal 4 is interposed between the spindle and the valve.
Patent GB-772773-A (GB)
Title: Glass fiber filled alkyd resin composition
IPC: C08K3/00
Filed: 1955-05-16
Abstract: A stable, air-permeable thermosetting composition comprises an unsaturated polyester, a catalyst and a filler comprising 25 to 65 per cent glass fibres, 5 to 30 per cent ground mica and 5 to 35 per cent of clay, ground calcium carbonate or finely divided silicates. The polyesters may be derived from various polyhydric alcohols and maleic, fumaric, itaconic, citraconic or mesaconic acids and may be modified or unmodified.  A monomer such as diallyl phthalate, styrene, or its derivatives, acrolein, triallyl cyanurate, methacrylates, acrylates, or vinyl or allyl esters (see U.S.A. Specification 2,632,751 may also be included. Specified catalysts are organic peroxides such as benzoyl peroxide, and organic ozonides. Other fillers such as tale, calcium or magnesium silicates and antimony oxide may also be present and other ingredients used in the examples are titanium dioxide, iron oxide, zinc stearate and beechwood chips distillate.  In the preparation of the composition the glass fibres are added last to the softened resin containing the other fillers.  The moulded compositions are useful in electrical insulation.  Specification 721,341 and 722,628 also are referred to.
Patent GB-1450516-A (GB)
Title: Method and apparatus for aeration of biodegradable waste material
IPC: C02F3/12
Filed: 1975-04-07
Abstract: 1450516 Aerating liquids REN VAND INC 7 April 1975 [10 April 1974] 14170/75 Heading B1C [Also in Division C1] Pressurised turbulent sewage etc. is injected with compressed air in a confined zone. then conveyed to a zone having a mixing area and a gas-separation area separated from one another by a back-pressure creating means. In Fig. 1, sewage from holding tank 10 is pressurised by pump 20 into confined zone 28 where it is injected with air from compressor 40, then passed through conduits 42, 48 to pipe 52 having mixing area 54; back-pressure valve 62, gas-separating area 56, gas outlet 66, and aerated sewage outlet 68. Foaming is said not to occur. Figs. 2 and 3 (not shown) are details of Fig. 1. In Figs. 4-6 (not shown) a similar apparatus is held above the sewage level in tank 10. Figs. 7 and 8 (not shown) show alternative air-injection and turbulence creating means.
Patent GB-769075-A (GB)
Title: Improvements in and relating to ceiling panels and ceiling constructions incorporating such panels
IPC: E04B9/32
Filed: 1955-05-17
Abstract: 769,075. Ceiling panels; ventilating. BENJAMIN ELECTRIC, Ltd. May 17, 1955 [Aug. 2, 1954], No. 14209/55. Class 20(3), 20(4) and 137 Lightweight, translucent, plastic, panels 12, made e.g. of vinyl chloride acetate and preferably corrugated as shown, are suspended by rods 14 to form a sub-ceiling 11 below a main ceiling 15, the space between the two ceilings being used to accommodate flourescent lights 13. and as a channel for supplying ventilation air to the room below. Cross-shaped couplings 16, and T-shaped couplings 17 for use adjacent a wall, are mounted on the lower ends of the rods 14 and have V-shaped arms which support between them members 18 of corresponding section to form a series of squares. The two outer corrugations of each panel form part of a peripheral trough 19 which has marginal flanges 22 for overlying the near sides of the adjacent supporting members. 18 to support the panel. A series of outwardly extending projections 23, formed by shaping the outer walls 21 of the troughs 19, have outer faces which engage beneath the adjacent sides of the respective members 18 and prevent the displacement of the panels. To provide channels for the flow. of air from the space above the ceiling 11 to the room space below portions of the marginal flanges 22 can be pressed upwardly to provide transverse grooves 25, Fig. 5. Alternatively projections may be provided on the flanges 22 which contact the adjacent sides of the supporting members and maintain the flanges 22 spaced above the supports 18.
Patent GB-528671-A (GB)
Title: Improvements relating to calenders for the production of sheets of caoutchouc and similar materials
IPC: B29B7/68
Filed: 1939-05-12
Abstract: 528,671. Calendering machines. MEYER, H. May 12, 1939, No. 14214. Convention date, May 3, 1938 [Class 87 (ii)] For varying the inclination in the horizontal plane of one or more of the rollers 1, Fig. 1, of a calendering machine, the bearing brackets 3, Fig. 3, of the supporting pins 2 are provided with spherical surfaces which engage correspondingly shaped surfaces on the outer bearing members 4, and pairs of vertically displaceable wedgeshaped elements 5, with vertical inner and inclined outer surfaces, guided in grooves in the bearing members 4, are adjustable by screw spindles 6 driven by worm wheels 7 and worms, rotation of the common axle 9 moving the wedges in the appropriate opposite directions. Independent height adjustment means of usual type are provided.
Patent GB-1502875-A (GB)
Title: Apparatus for the detection and/or determination of nose and/or throat irrantants
IPC: A61B5/08
Filed: 1975-04-08
Abstract: 1502875 Apparatus for detecting nose irritants CARL HEYER GmbH 8 April 1975 [24 April 1974] 14256/75 Heading A5K In an apparatus for examining patients for the purpose of detecting allergies and other irritations of the nose-throat region, a gas mixture is supplied from a source 1 to a nose nozzle 6 via a gas-conditioning device 4, control valve 3, flow meter 2 and supply conduit 5, the pressure being measured by pressure gauge 7 having an adjusting knob 8, the air temperature by transducer 11 and the nose temperature by thermoelectric element 9. In operation air is introduced from source 1 to the patient and the flow rate on maximum inspiration is measured. Allergens are then introduced from an arrangement 16 or from an inhalation device 13 via a threeway selector valve 15 to the air supply and with the pressure constant the flow rate on maximum inspiration is again measured. A substantial decrease indicates a positive reaction to the allergen. The positive reaction can also be indicated by keeping the flow rate constant and observing a substantial increase in the pressure, or by observing an increase in the temperature indicated by instrument 10 connected to thermoelectric element 9. A thermostatic controller 12 connected to transducer 11 and controlling a heater in the air-conditioning device 2 controls the air temperature.