baber/WOPTO huggingface dataset:
Patent GB-1095133-A (GB)
Title: Monitoring apparatus
IPC: A61B5/022
Filed: 1965-02-17
Abstract: 1,095,133. Monitoring blood pressure. AIR-SHIELDS Inc. Feb. 17, 1965 [Nov. 3, 1964], No. 6888/63. Heading A5K. Monitoring equipment for blood pressure comprises a pulse-sensitive transducer adapted to be associated with an artery and to produce electrical impulses synchronously with pulses therein, fluid-pressure-operated means for restricting the flow of blood in an artery at a point upstream of the transducer upon admission of fluid at a pressure above a predetermined value, supply means for supplying operating fluid to the pressure-operated means at a pressure above the predetermined value, pressure-indicating means connected to the pressure-operated means to indicate the blood pressure in the artery, valve means for connecting the supply means to the indicating means and to the pressure-operated means, means for operating the valve means and for disconnecting the supply means after the pressure in the pressure-operated means has exceeded the predetermined value, and means for bleeding off pressure from the pressure-operated means to a value below the predetermined value, and a control circuit responsive to the detection of each of a plurality of pulses by the transducer to operate the valve means to reconnect the supply means and thereby reestablish the pressure above the predetermined value. Preferably the equipment also provides indication of pulse rate and patient's temperature. Figure 2 is a diagrammatic illustration of the mechanical system of a preferred embodiment of the invention, and Figure 3 is a schematic illustration of the preferred electronic control circuitry thereof.
Patent GB-713487-A (GB)
Title: Improvements in vinyl amino ether polymers and their preparation
IPC: C08F16/28
Filed: 1952-03-18
Abstract: Vinyl aminoethyl ethers of the formula <FORM:0713487/IV (a)/1> where R1 and R2 each represent hydrogen or the same or different saturated or unsaturated aliphatic hydrocarbon radicals, preferably methyl or ethyl, or R1 and R2 together with the adjacent nitrogen atom represent the atoms required to complete a heterocyclic nucleus, are polymerized by reacting with boron fluoride in a proportion of more than one molecule of boron fluoride per molecule of amino ether and removing the boron fluoride from the product, preferably by treating with an aqueous solution of an alkali metal hydroxide.  The boron fluoride is preferably used in the form of a complex with an aliphatic ether such as diethyl ether, and the amino ether is preferably polymerized in solution in an organic solvent such as benzene or diethyl ether, the boron-fluoride-ether complex being preferably also used in such a solution.  Specifications 443,978 and 608,202 are referred to.
Patent GB-884346-A (GB)
Title: Method of refrigerating foodstuffs
IPC: F25D13/06
Filed: 1960-02-29
Abstract: 884,346. Cooling peas and berries. STAL REFRIGERATION A.B. Feb. 29, 1960 [March 19, 1959; Nov. 26, 1959], No. 7023/60. Classes 29 and 64(2) Products such as peas, bilberries or strawberries are cooled or frozen while maintained in a fluidized bed. As shown the products form a bed 3 on a perforated bottom 2 through which fans 6 force gaseous fluidizing medium cooled by exchangers 5. The products are fed into one half of the bed by shoot 9, the bed being divided by a central partition 10 for most of its length, and flow along the bed, round the end of partition 10 and back along the bed to outlet shoot 11. The bed is further subdivided by partitions 12. The partitions 10, 12 and/or the side walls of the bed may constitute refrigerated plates. The perforated bottom may be vibrated. In a modified form the bed bottom is imperforate but has spaced apertures in its bottom through which spouts of fluidizing medium enter. The products may be precooled or mixed with other bodies, e.g. balls of artificial material.
Patent GB-234223-A (GB)
Title: An improved resistance for use in wireless telegraph and telephone apparatus
IPC: H01C10/06
Filed: 1924-03-19
Abstract: 234,223. Gardner, C. H. March 19, 1924. Variable resistances; inductances.-These are constructed so that a uniform motion of the operating-knob varies the travel of the point of contact between a contact member and the coil at a gradually decreasing speed. A curved metal strip 5 is rocked by a cam 8, operated by a knob 11. so that the point of contact between the strip 5 and a resistance coil 2 travels from one end of the coil to the other, the cam being so shaped that the travel is initially rapid and then decreases. The strip 5 is guided by pins 6 on the insulating core 1 passing through slots in the strip, and is pressed against the resistance coil 2 by a spring 7. A grid leak may be formed by substituting for the wire a highly resistant medium on the core.
Patent GB-1426967-A (GB)
Title: Method of rapidly forming a photographic image
IPC: G03C1/765
Filed: 1974-02-15
Abstract: 1426967 Rapid processing of photographic silver halide materials FUJI PHOTO FILM CO Ltd 15 Feb 1974 [15 Feb 1973] 7082/74 Heading G2C [Also in Division C3] An exposed photographic light-sensitive material having at least one silver halide emulsion layer and an uppermost layer containing a gelatine derivative which is a reaction product of gelatine with a monofunctional compound capable of reacting with an amino, imino, carboxyl and/or hydroxy group in said gelatine and containing a functional group which is -NCO, -NCS, -NHCOSO 3 M, -NHCS.SO 3 M, -SO 2 X, -COX, -X, -COOR<SP>3</SP>, or where R<SP>1</SP> and R<SP>2</SP> are H or alkyl of 1-8C, R<SP>3</SP> is aryl having an electron-attracting group in o or p-position, X is halogen, A is an electron-attracting group which activates a vinyl group, B is an atom or group forming a vinyl group by eliminating  an acid and M is an alkali-metal, is processed by development at a temperature of at least 30C. The top coat layer of gelatine derivative prevents or reduces reticulation. The gelatine derivative may be one obtained by reacting gelatine with an isocyanate or isothiocyanate or a bisulphite adduct thereof, an acyl aziridine or a 1-substituted -3-(2)- chloro-ethyl) -urea, a vinylsulphonyl or vinylcarbonyl compound or acrylonitrile or a 1-sulphato -or -bromo-2-acyl-ethane, a sulphonyl halide, a carboxylic acid halide, a carboxylic acid anhydride, an epoxy-propane, epichlorhydrin or a 1-halo-2- hydroxy propane, a halotriazine, a haloacetic acid, a carboxylic acid containing an ortho- or paranitrophenyl group or a maleimide. The photographic material may be a black-and-white or colour material and may contain other additives. The further processing e.g. bleach-fixing and stabilizing may also be conducted at 30 C or over.
Patent GB-590588-A (GB)
Title: Improvements in or relating to indicator devices for use with totalisators, score indicators or the like
IPC: A63B71/06
Filed: 1945-03-21
Abstract: 590,588. Displaying. DEGEN, A. A. C. March 21, 1945, No. 7113. [Class 3 (i)] [Also in Group XXXVIII] An indicator device for displaying figures or symbols, especially for totalisators, comprises a plurality of hinged flaps or plates located, at points equidistant around the periphery of a drum, on axes parallel to the axis of the drum; the figures being shown in part on the flap and in part on the periphery of the drum. The drum comprises two side-plates 15 of 10-sided regular form which are spaced apart by 10 flat, rectangular plates 16 secured around the periphery of the side-plates. Extending between the sideplates 15 at each of the corners are ten spacer rods 17 on which flaps 18 are hinged. These flaps normally lie flat against the periphery of the drum, but in the case of that section of the drum at the moment under display the plate in position 1 is rotated on its hinge so that its top edge swings forward above the vertical drum face, whilst in a similar manner the plate in the position 10 is moved below the drum face. The upper portion of the figure is painted on the flap in the position 1, the middle portion on the periphery of the drum, and the lower portion on the flap in the position 10. Specification 199,515, [Class 3 (i)], is referred to.
Patent GB-791806-A (GB)
Title: Paint
IPC: C04B28/26
Filed: 1954-03-12
Abstract: A paint comprises sodium silicate and/or potassium silicate, aluminium oxide, calcium hydroxide and/or barium sulphate, a pigment and a vehicle, which may be water over and above that present in the sodium or potassium silicate, or an organic dispersant.  The organic dispersant may comprise one or more of the following materials: formalin, petroleum, kerosene, turpentine, linseed oil, trichlorethylene, castor oil, olive oil, chlorinated naphthalene, glycerol phthalate resin, dibutyl phthalate, benzine, paraffin, carnauba wax and beeswax. The pigment may be iron oxide or chromium oxide.ALSO:To a water paint comprising sodium and/or potassium silicate, aluminium oxide, calcium hydroxide and/or barium sulphate, a pigment, and a vehicle (see Group III) there is added 1-30 per cent of a mixture of glycerol phthalate resin, turpentine and kerosene. The pigment may be iron oxide or chromium oxide.
Patent GB-491891-A (GB)
Title: Improvements in mechanically operated direction indicators for motor vehicles and the like
IPC: B60Q1/34
Filed: 1937-03-12
Abstract: 491,891. Road - traffic signals on vehicles ; operating devices for Bowden and like transmissions. WALKER, K. March 12, 1937, Nos. 7318 and 14141. [Class 118 (ii)] [Also in Group XXXI] A control unit for operating direction indicators through Bowden wires or like transmission comprises means for moving bars connected with the wires in horizontal directions in the same plane, the coupling of the control handle with one wire automatically moving the connecting units of the other wire out of the path of the control handle. To operate the left-hand indicator the handle 20 is swung to the left about pivot 21. The selector 17 moves to the right and is swung anticlockwise by contact between surfaces 23, 26 so that slot 28 engages pin 7 of bar 5. The selector 17, in moving anticlockwise, moves clear of pin 8 of bar 6 so that the right-hand indicator is not moved. Continued movement of the handle 20 to the left moves the bar 5 to the right and the wire 9 is moved to operate the direction indicator. At the same time conducting segment 32 on handle 20 engages contact 30 and completes a circuit for lighting the left-hand pilot lamp 38 visible through opening 42. When the handle is restored to its central position the bar 5 is forced to the left by engagement between slot 28 and pin 7 and is held in neutral position by spring 15. To operate the right-hand signal the handle is moved to the right and bar 6 is moved in a manner similar to that described above. The segment 32 contacting with contacts 30 and 31 also may cause lamps in the signal arms to be lit. The tell-tale lamps 38, 39 are held in position by covers 40, 41, and may be used as spares for the lamps in the indicators.
Patent GB-784483-A (GB)
Title: Improvements in and relating to fishing vessels
IPC: B63B35/18
Filed: 1956-03-09
Abstract: 784,483. Fishing vessels. VOITH GES., J. M. March 9, 1956 [March 22, 1955], No. 7414/56. Class 113. A fishing vessel has the propulsion installation and the rudder installation near the bows and the net trawling installation 3, 4, 5, 6 near the stern. The propulsion metallation may comprise a vane wheel propeller 2 or two such propellers side-by-side, and the propulsion and rudder installations may be combined to form one unit.
Patent GB-164830-A (GB)
Title: Improvements in apparatus for playing race games of the roulette type
IPC: A63F9/14
Filed: 1920-03-12
Abstract: 164,830. McQuire, W., McQuire, K. D., and McQuire, L. A. March 12, 1920. Race games, mechanical.-Apparatus for playing a race game comprises a disc 1, Fig. 1, divided into sectors having recesses 2 for counters and mounted upon a base having a hollow pillar 3 and adapted to be placed upon the turntable of a gramophone, the pillar being provided with a spindle 4 having loosely mounted thereon rotatable arms 5 which may pass each other freely and which carry adjustable weights 7 for varying their speed of rotation and figures of racehorses 6. The arms are attached to blocks 9, Fig. 2, which are loosely supported upon the spindle by loose sleeves 10 and washers 11. In playing the game, the apparatus is placed upon the rotating turntable of a gramophone and the turntable is suddenly stopped so that the arms continue to rotate promiscuously before coming to rest, the winning racehorse being that closest behind the finishing point. In a modification, the blocks carrying the arms may be supported upon fixed sleeves the lower ends of which are pressed into slots formed in the spindle. When a gramophone is not available, the apparatus may be supported upon a stand and rotated by hand by means of a nut screwed upon the upper end of the spindle.
Patent GB-171966-A (GB)
Title: Improvements in means for supplying steam boilers with feed water
IPC: F22D1/42
Filed: 1921-03-08
Abstract: 171,966. L'Auxiliaire des Chemins de Fer et de l'Industrie. Nov. 23, 1920, [Convention date]. Feed-water, supplying.-Feed-water is supplied to a heater 2 by a pump 4 in tandem with the pump 5 that withdraws the water'from the heater and forces it into the boiler, an open expansion vessel 3 being connected to the top of the heater and to the feed tank or to the supply pipe 9 to ensure sufficient pressure for the working of the pump 5 and to provide for overflow from the heater. The pump supplying water to the heater is of greater capacity than the pump withdrawing water. The pipe 10 connecting the expansion vessel with the supply pipe is flared at its connection with the vessel. The water may be heated by exhaust steam.
Patent GB-1190514-A (GB)
Title: V-Triazolyl Coumarins
IPC: C08K5/3475
Filed: 1968-02-15
Abstract: 1,190,514. v-Triazolyl coumarins. J. R. GEIGY A.G. 15 Feb., 1968 [16 Feb., 1967], No. 7486/68. Heading C2C. [Also in Divisions C3, C5 and D1] Novel v-triazolyl compounds of the general Formula (I) wherein A represents a tetramethylene group optionally substituted by C 1-4  alkyl groups, or C 5-6  cycloalkyl ring condensed with a benzene ring optionally substituted by C 1-4  alkyl groups, the benzene ring of which can be optionally non-chromogenically substituted, Y represents an optionally substituted mononuclear carbocyclic or heterocyclic aryl group conjugated with the coumarin group, R 1  and R 4  independently represent hydrogen or C 1-4  alkyl, and R 2  and R 3  independently represent hydrogen, C 1-4  alkyl or C 1-4  alkoxy are prepared by splitting off one molecule of water from oxime hydrazones of an α-diketone of the Formula (II) by the action of acid agents. The condensation is carried out with protonic acids or acid anhydrides, optionally with heating. In another method of preparation triazole oxides of the general Formula (V) obtained by oxidizing the aforementioned oxime hydrazones of α-diketones, are reduced by known methods. In addition 7-triazolyl-3- phenyl coumarins, according to the invention are prepared by condensing a 2-hydroxy-4- triazolyl benzaldehyde of the general Formula (VI) or a derivative thereof, with an optionally ring-substituted phenylacetic acid or with a functional derivative of this acid, using known cyclizing techniques. In the examples the first two methods of preparation are employed and illustrative examples prepare 2-[3-phenylcoumarinyl-(7)]-4,5-tetramethylene-v-triazole. The compounds of the invention have useful optical brightening properties. The starting materials used in the first two methods are prepared by reacting, in any order, 7-hydrazino-3-phenyl coumarin, hydroxylamine and α-diketones. The following are isolated: cyclohexane - 1,2 - dione - [3 - phenylcoumarinyl - (7)-hydrazone]-oxime prepared from 3-phenyl-7- hydrazinocoumarin and isonitrosocyclohexane, tetralin - 1,2 - dione - [3 - phenylcoumarinyl -(7) - hydrazone] - oxime from 3-phenyl-7-hydrazino - coumarin and #-isonitroso-α-tetralone. In addition the N-oxides, 2-(3-phenylcoumarin - (7) - yl) - 4,5 dihydro - 8 - chloronaphtho [1,2-d]-v-triazole oxide and 2-(3-phenylcoumarin - (7) - yl) - 4H - indero [2,3 - d] - v - triazole, oxide are prepared by oxidizing 7- chlorotetralin-1,2-dione-[3-phenylcoumarin-(7)- yl] - oxime and indan - 1,2 - dione - [3 - phenyl - coumarinyl-(7)-hydrazone]-oxime with copper sulphate in pyridine.
Patent GB-268333-A (GB)
Title: A new or improved strainer device for domestic purposes
IPC: A47J43/22
Filed: 1927-03-18
Abstract: 268,333. Caillat, A. I. A., and Bellier, E. March 29, 1926, [Convention date]. Funnel strainers. - A strainer for domestic purposes is so connected to a drip cup or saucer that, though normally in position over the drip cup, it can be moved aside for use. A drip cup 4 is supported by an angleiron extension 2 of a handle 1. The strainer 5 is carried by an arm 6, pivoted on the part 2 and provided with a trigger 8 which can be pressed in against the action of a spring to bring the strainer into the position shown in Fig. 5. When the trigger is released the spring brings the strainer back over the cup 4.
Patent GB-100594-A (GB)
IPC: F16C33/42
Filed: 1916-05-29
Abstract: 100,594. Deutsche Star Kugelhalter Ges. May 15, 1915, [Convention date]. Ball bearings.-A cage for thrust ball bearings comprises a ring with inturned flanges b and a base a arched inwardly between the flanges, and perforated to receive the balls.
Patent GB-640417-A (GB)
Title: Improvements relating to time base circuit arrangements
IPC: H03K4/20
Filed: 1948-03-12
Abstract: 640,417. Sawtooth generating circuits. HALL, A., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 12, 1948, No. 7599. [Class 40 (vi)] In a circuit for generating recurrent voltage sweeps, in which the anode current of a valve transfers to the screen-grid at the end of the sweep the suppressor-grid is coupled to the screen-grid through a transformer so that when the transfer occurs the suppressor grid is driven negatively to cut-off the anode current and thus produce the flyback. As shown, the valve is arranged in a Miller sawtooth generating circuit having a feed-back capacitor C1. The secondary of the transformer is shunted by a capacitor C2 to delay the decay of the suppressor voltage until the fly-back has been completed. Diode D2 determines the anode voltage at the beginning of the sweep and diode D1 prevents the suppressor grid becoming positive. Specification 639,689 is referred to.
Patent GB-565588-A (GB)
Title: Improvements in or relating to apparatus or mills for treating or grinding malt
IPC: B02B3/10
Filed: 1943-05-13
Abstract: 565,588. Malt - crushing mills. PORTEUS, G. May 13, 1943, No. 7618. [Class 59] In malt-crushing mills, the grains are fed by a roller fluted circumferentially to a fluted plate feeding them to the nip of the crushing rollers. The circularlyfluted roller 5 is immediately beneath the usual longitudinallyfluted roller 4 in the mouth of the feed shoot and feeds.the grains to a fluted plate 6 directing them to the nip of the crushing rollers 2.
Patent GB-1520935-A (GB)
Title: Laser device
IPC: H01S3/036
Filed: 1976-02-26
Abstract: 1520935 Lasers; gas discharge tubes RCA CORPORATION 26 Feb 1976 [27 Feb 1975] 07711/76 Headings H1C and H1D In a gas discharge laser, the surface of a hollow cathode is protected from ion bombardment sputtering by a protective coating of a vaporizable metal held at its vaporization temperature, the metal coating being sputtered off during laser operation and then recoated on the cathode from its vapour phase to maintain a substantially constant protective coverage of the cathode surface. A gas discharge tube 10 with windows 16, 20 at the Brewster angle and external resonator mirrors 26, 28 is shown in Fig. 1, the gas discharge tube comprising a metal, e.g. molybdenum, cathode tube 12 sealed to glass tubular members 14, 18 containing tubular anodes 22, 24. The gas tube contains helium, and lasing is produced by cadmium vapour vaporized from the cathode. The cathode is maintained at the vaporizing temperature by heating or cooling means associated with a copper block 40 fitted on the cathode tube, temperature regulation being effected by a thermostat 42a heating coil 46 being shown. An alternative form of gas discharge tube is shown in Fig. 2, and comprises a copper or alloy tube 54 with a molybdenum cathode lining sleeve 70, insulating ceramic spacers 60, 62, and apertured anode cups 56, 58 supporting resonator mirrors 61, 63. A thermostat 80 controls heating or cooling of the tube 54 and lining sleeve 70. A plurality of recesses 84 is provided in the tube or sleeve which contain the cadmium vaporizing material, the recesses being connected to the bore of the gas discharge tube by passageways 86 to permit metallic diffusion during laser operation. Other vaporizing materials which need not contribute to lasing action may be used with suitable lasing gases to protect the cathode, such materials including zinc, strontium, lead, antimony and selenium.
Patent GB-1426431-A (GB)
Title: Development of direct-positive silver halide elements
IPC: G03C1/485
Filed: 1972-02-18
Abstract: 1426431 Photographic direct-positive image development AGFA-GEVAERT 12 Feb 1973 [18 Feb 1972] 7743/72 Heading G2C A direct-positive image is produced by imagewise exposing a photographic material comprising at least one direct-positive silver halide emulsion layer containing electron-traps and uniformly fogged radiation-sensitive silver halide grains and developing the exposed emulsion using a silver halide developing agent, the degree of fogging of the grains being such that a test portion of the grains when coated as an emulsion on a support to give a maximum density of at least 1 upon processing for 6 minutes at 20 C in a developer comprising 2.5g N-methyl-p-aminophenol sulphate, 30g anhydrous sodium sulphite, 2À5g hydroquinone, 10g sodium metalorate, 0À5 g KBr and water to make 1 litre has a maximum density which is at least 30% greater than the maximum density of an identical coated test portion which is processed for 6 minutes at 20‹C in the above developer after being bleached for 10 minutes at 20‹C in a bleach composition comprising 50mg KCN, 3À47 ml glacial acetic acid, 11À49g sodium acetate, 119mg KBr and water to make 1 litre, and development being effected using a developer composition or a development activating composition which is free of halide ions. The emulsion may be of the type which comprises electron traps by the presence in the emulsion of an electron accepting or desensitizing compound. The silver halide grains may have in their interior centres promoting the deposition of photolytic silver. The material may be one that is described and claimed in U.K. patent no 1416996. Development may be effected using a viscous processing composition comprising a thickening agent (see Ex 5), or using a synergistic combination of hydroquinone and N-methyl-p-aminophenol sulphate or 1-phenyl-3-pyrazolidinone, or ascorbic acid and 1-phenyl-3-pyrazolidinone. The material may contain a colour coupler (see Ex 4) and the development may comprise colour development. The maximum density obtainable by a given development of direct-positive images formed with silver halide grains having a low degree of fogging can be increased by this process.
Patent GB-971314-A (GB)
Title: Treatment of ferrous metal
Inventor: LAWRENCE FREDERICK BRIAN
IPC: C21C1/00
Filed: 1962-02-28
Abstract: In a cupola used for the production of molten ferrous metal, a high temperature zone is produced in the coke bed by the introduction of oxygen or oxygen-enriched air through auxiliary tuyeres separate from the main tuyeres and a gaseous suspension of a reducible siliceous material is fed into the zone to increase the silicon content of the molten metal.  Sand is the preferred siliceous material although crushed quartz, ground flint and ground granite may be used.  The material may be suspended in the oxygen or oxygen-enriched air producing the hot zone or is preferably suspended in air and fed into the hot zone through a consumable or non-consumable lance.  Fluxes may also be introduced through the same gas stream.  Specification 914,904 is referred to.