baber/WOPTO huggingface dataset:
Patent GB-210883-A (GB)
Title: Improvements in processes and apparatus for disinfecting purposes
IPC: A61L2/26
Filed: 1922-11-10
Abstract: 210,883. Compagnie du Gaz Clayton, and Clayton, T. A. Nov. 10, 1922. Disinfecting-chambers; vaporizing by heat or combustion; vapours, delivering.-A disinfecting agent that has been employed, in conjunction with heat, for the treatment of clothing and the like in a closed chamber or stove is subsequently used in a cooler condition for the superficial disinfection of rooms, and the destruction of vermin. Sulphurous gases are preferably employed, and the gases may be cooled by means of air supplied to support the combustion of the sulphur. Apparatus for the execution of the process comprises a generator so constructed that either step in the process can be carried out independently. Hot sulphurous gases generated in the generator a enter the closed chamber or stove h by way of the pipe b<1> and, having circulated in the chamber, pass into the room to be treated by way of the pipes b<2>, c, g. Air for combustion of the sulphur is drawn in at e<2> and cools the gases in the pipe c before entering the generator through the pipe f. If the cold gases are not required for use they may be led from the pipe g into an absorbent solution or into the atmosphere; if cold gases only are required, the, valves b<3>, b<4> are shut and valve b<5> opened, the gases then passing direct from the generator to the cooler d. The generator and its connections, together with the chamber h, may be mounted on a truck for transport. To accelerate the heating of the chamber, the pipe b<1> may be continued to form a radiator inside the chamber, and the generator may be placed within the chamber so that its operation is controllable from without. In the latter case a vessel arranged to be fed from outside the chamber with an additional disinfecting agent such as formaldehyde may be placed on the generator.
Patent GB-877452-A (GB)
IPC: A47B88/04
Filed: 1957-10-02
Abstract: 877,452. Drawers. BECKER, O. A. Oct. 2, 1957 [Oct. 2, 1956; April 23, 1957], No. 30856/57. Addition to 835,739. Class 52(1). The drive of motor operated drawers in a desk or cabinet is so arranged as to give approximately the same impelling or braking thrust to each side of the drawer. In one embodiment a rack 614, centrally mounted beneath the drawer is driven by a pinion 612 on a shaft 611 turned by a chain drive 609 from the motor shaft 615. The rack and pinion may be replaced by a central endless chain to which the drawer is attached e.g. at the rear end. Each drawer moves on runners 647 on which are mounted, (Fig. 3) a sprocket 670 engaging a lower fixed chain 671 secured to bracket 646 on the desk, and an upper fixed chain 673 secured to bracket 672 on the drawer. Between the motor shaft 615 and the chain drive is a mganetic reversing clutch (Fig. 2 not shown), and between the chain drive and shaft 611, carrying pinion 612, is a magnetic clutch. On disengaging the latter, internal brake pads 645 act on drum 639. Selection of the appropriate control button 602, 603 simultaneously operates the motor and the appropriate clutch. The front 674 of the drawer is spring mounted on channel member 678 so that injury or damage is not caused if an object is trapped between the drawer and desk. Alternatively the front of the drawer may be of flexible plastic. Ball catches retain the drawers shut and air buffers prevent damage to the drives as the drawer reaches the fully closed position.
Patent GB-1589884-A (GB)
Title: Digital transducers for measuring
IPC: G01D3/02
Filed: 1977-07-25
Abstract: The relationship between a physical measured value, e.g. water quantity in m<3>/sec, and the output signal pulse frequency f(Hz) of a measuring device, is graphically represented by a straight line (fg), which because of various effects does not pass through the origin of the co-ordinate system of the representation. This is a particular disadvantage if the measured value is represented by the frequency of a sequence of pulses, and the pulses are counted by counters. By superimposing (adding or subtracting) correction pulses over the converter pulses, the straight line is displaced (fgkorr), so that it passes through the origin, and the relationship between measured value and number of pulses is changed, so that it is directly proportional. The requirements for correct superimposition, and an electronic circuit for this purpose, are explained. <IMAGE>
Patent GB-871173-A (GB)
Title: Improvements in indicating arrangements for hydraulically or pneumatically actuated valves
IPC: F16K31/122
Filed: 1958-09-30
Abstract: 871,173. Valves. KLEIN, SCHANZLIN & BECKER A.G. Sept. 30, 1958 [Oct. 8, 1957], No. 31135/58. Class 135. An indicating arrangement for an hydraulically or pneumatically activated valve having a piston and cylinder control assembly comprises an indicator device associated with each of the control medium lines to the central assembly and adapted to be operated by the control medium discharged from the assembly during operation thereof. The supply-exhaust lines 7 and 8 of the cylinder 3 of a piston 2 which actuates a valve 1 are controlled by a pair of cocks 5, 10 which are connected to remotely situated indicator tanks 12, 16 each having sight glasses 13, 17 so that as the piston moves one or other of the indicators 12, 13 or 16, 17 receives the fluid discharged from the cylinder 3 and indicates such movement. In a second embodiment only one indicating tank and one selector cock are used, the tank being emptied before each operation of the valve 1. The direction in which the piston is moving is in this case indicated by the position of the selector cock. The indicator may be a dial gauge. If air is used as the control medium the air discharged from the cylinder bubbles through a liquid-filled sight glass.
Patent GB-1274651-A (GB)
Title: Improvements in or relating to flow measuring devices
Inventor: FOWLER GORDON
IPC: G01F1/36
Filed: 1968-06-28
Abstract: 1,274,651. Measuring fluid-flow. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. June 18, 1969 [June 28, 1968], No.31151/68. Heading G1R. In a rate of fluid-flow measuring device a fluidflow restricting member 3 axially movable in a tapered or stepped bore 5, by a hand wheel 24, to constrict the gap between the member 3 and bore 5 passages 12, 13 are provided in the member 3 to measure the pressure differential of the fluidflow upstream and downstream of the gap by pressure gauges attached to the ends of tubes 9, 10 to provide an indication of the fluid-flow rates through the constriction. (For figure see next page)
Patent GB-785154-A (GB)
Title: Patient table for an x-ray installation
IPC: A61B6/04
Filed: 1955-11-01
Abstract: 785,154. X-ray apparatus. SMIT-RONTGEN, N. V. Nov. 1, 1955 [Nov. 2, 1954, No. 31225/55 Addition to 751,307. Class 98(1) In the X-ray tiltable table described in the parent Specification, an electric motor 15 is mounted on the table 11 and actuated means, such as the screw-threaded rod 12, movably mounted on. the table 11 to displace it with respect to its support 9, an internally toothed sector 4 centred on the tilt axis and fixed to the base 2, a toothed rack 19 mounted longitudinally on the table, and two pinions 20, 21 connected together to rotate about a common axis cn the support 9 and respectively engaging the toothed segment 4 and the rack 19.
Patent GB-1112584-A (GB)
Title: Process for preparing thin semiconductor crystals
IPC: C30B25/00
Filed: 1965-07-22
Abstract: AIIIBV type semi-conductor compounds where A=Ga or In, and B=As and/or P are prepared as strip-like dendrites or in acicular form by heating, e.g. to ~1000 DEG  C. a non-gaseous starting material in one part (A) of a reaction vessel to form a gas, for a time sufficient to establish equilibrium, thereafter cooling another part (B) of the reaction vessel which does not contain solid by at least 100 DEG  C. to produce crystals of the product while at least maintaining the temperature of part A.  The starting material may be the semi-conductor material itself or the individual component elements with a transport medium in elemental form (see below) or compounds of one of the component elements with the transport medium, the other being present as the element, and includes as additive in an amount 1-2 atom per cent of the Ga or In, one or more "heavy metals," e.g. Ni, Zn, Cu, Ag, Sn or mixtures thereof when dendrites are to be formed or one or more elements of the group VIb of the Mendeleef Periodic Table, i.e.S, Se, Te when acicular crystals are to be formed. The transport medium may be bromine or iodine.  The starting material may be used in such an amount that no solid remains when heated. The vessel may be heated in a furnace having two zones, differing in temperature by at least 100 DEG  C. and cooling is then effected by moving the vessel from entirely within the high temperature zone to partly within the cooler zone.  Part B may also be cooled by means of a cooling gas or a cooling coil.  Part B of the vessel preferably has a large cross-section relative to part A, and is also preferably spherical.
Patent GB-1000453-A (GB)
Title: Improvements in the manufacture of phosphoric acid
Inventor: ROBINSON NORMAN
IPC: C01B25/22
Filed: 1961-08-31
Abstract: <PICT:1000453/C1/1> A continuous process for making phosphoric acid in a series of vessels comprises adding phosphate rock to the first vessel, adding sulphuric acid to the system so that it is diluted before entering the first vessel and circulating the reaction mixture with agitation in each vessel, withdrawing a part of the reaction mixture for separation of the product and recirculating the remainder from the last vessel to the first vessel, the holding time in the first vessel being greater than that in the other vessels.  The sulphuric acid may be added subsequent to the first vessel but is preferably added to the recycle line.  The holding time in the first vessel may be up to 5 times that in the other vessels, preferably about double the time and this may be achieved if the first vessel has a greater volume than the others, for example they may be 20-70% or preferably about 50% of the volume of the first vessel.  Suitable phosphate rock is of the reactive type, e.g. Morocco phosphate rock which may be coarsely ground or the less reactive Kola or Palabora types which may be coarsely or finely ground to about 100 mesh BSS. Preferably three vessels are employed and the recycle ratio which is the weight of slurry recycled to the weight of phosphate rock and sulphuric acid fed in is from 6: 1 to 24: 1, preferably 12: 1.  A slight excess of sulphuric acid is advantageously employed, the recycled slurry preferably containing 1-5% by weight of H2SO4.  A suitable apparatus is illustrated in the accompanying drawing in which the vessels 1, 2 and 3 are joined by conduits 4 and 5. The phosphate rock is fed in by means 12.  A recycle line 7 is provided also a pump 8 and mixing head 9 for the introduction of sulphuric acid.  A line 10 lends to a filtration unit 11. Examples are given of the use of such an apparatus.  An additional vessel may be provided communicating with 1, 2 or especially 3 so that the product may be withdrawn therefrom.
Patent GB-320537-A (GB)
Title: Improvements in illuminated signs
IPC: G09F19/18
Filed: 1928-10-29
Abstract: 320,537. Brown, G. W. Oct. 29, 1928. Optical - projection apparatus, applications of; prisms and like elements, rotating.-A changing sign comprises an optical-projection system enclosed in a casing s, the transparencies h being mounted on a turntable j the axis of which is parallel to the plane of the screen g, and two inclined mirrors f, e reflecting the light beams within the casing. The upper end of the stem k about which the turntable rotates carries an adjustable mount e<1> for the objective and for the mirror e, which is also angularly adjustable. The turntable is intermittently actuated by a, motor m which through gearing m<1>, m<2>, m<4> turns a lever which at each revolution engages one of a number of circumfenentially arranged studs o on the turntable. Notches j<1> receive a spring- pressed roller to register the turntable. The motor and gearing are mounted on a bridge r spanning the table j so as to be detachable as a unit. The speed of the motor is controlled hy rheostat q or potentiometer. The screen g is a tightly strekhed tinted sheet of cellulose having a matt surface, protected if desired by glass &c. Ventilators s<1>, tare provided in the casing.
Patent GB-966576-A (GB)
Title: Improvements in or relating to rotary electric machines
Inventor: RAWCLIFFE GORDON HINDLE
IPC: H02K17/06
Filed: 1961-08-31
Abstract: 966,576. Winding layouts for dynamo-electric machines. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 9, 1962 [Aug. 31, 1961], No. 31320/61. Drawings to Specification. Heading H2A. The principle of pole-changing by poleamplitude modulation is extended to singlephase machines by using two of the usual threephase windings connected to the single-phase supply, these two windings being physically disposed for elimination of the unwanted pole number, and the third winding being used for capacitor starting. The elimination of the unwanted pole-number may be achieved by the relative spacing of the two windings round the machine, or by suitable chording of the windings. The modulation is done in known manner by reversal of half of each winding, with or without pole suppression or reduction which may be achieved by coil-omission or coil-bucking in the modulated connection. The two connections may include series and parallel, star and delta arrangements. The waveform may be improved by the use of fractional slot winding, i.e. having an irregular number of slots per pole per phase.
Patent GB-497304-A (GB)
Title: Improvements in or relating to a heater for hair waving devices
IPC: A45D4/08
Filed: 1937-11-15
Abstract: 497,304. Hair -waving appliances. KAHLHOFER, H. Nov. 15, 1937, No. 31341. [Class 131] For use in producing permanent waves, a heat-retaining clip adapted to be heated prior to its application to the curler 2 comprises two hollow pivoted jaws 7 shaped as shown and filled with asbestos, glass wool or other heat-retaining material. The end walls 6 of the two jaws make contact along the whole or a substantial part of their length, and the width of the clip does not exceed that of the protective clamp 1. Handles 8, 30 with finger buttons and springs 10, 31 of various forms are described. The walls 5, 6 may be made of the heat-retaining material. The asbestos or other material in the hollow jaws is preferably compressed by a specially-shaped piston.
Patent GB-246112-A (GB)
Title: An improved projectile for guns, machine guns, ordnance and the like
IPC: F42B10/42
Filed: 1925-12-11
Abstract: 246,112. Blumer, H. Jan. 17, 1925, [Convention date]. Projectiles are made with a profile corresponding to the following formula, namely x<3> (x-2a) + a<2> y<2>/b<2> = o, where a and b are constants, x = length along axis of projectile measured from the tail end, and y = radius of projectile. The rear part of the projectile may be provided with ribs c.
Patent GB-1256316-A (GB)
Title: Stencil blanks for duplicating machines
IPC: B41N1/24
Filed: 1970-06-29
Abstract: 1,256,316. Printing stencils. KONTOR KEMI A.S. 29 June, 1970 [11 July, 1969; 29 April, 1970], No. 31353/70. Heading B6C. A duplicator stencil blank adapted to be imaged by heat action comprises a film of plastics material treated with at least one substance which influences the surface activity of the film and with at least one substance which promotes the rapidity of imaging of said film under heat action. Examples of substances which may be used to influence the surface properties of the film are the sodium salt of isobutylene naphthalene sulphonic acid, dibutyl amides of fatty acids, poly-dimethylsiloxane, methyl - silicon - polymers, tetraalkylsilane polymers and like substances covered by the technical term of "silicones". Other surface agents are polyethylene glycols and ethanolized alkyl - guanidine - amine - complexes. Suitable substances for promoting rapidity of imaging are di-octyl-phthalate, tricresyl-phosphate, trixylyl phosphate and polyphenyl-chlorides or di-cyclohexyl-phthalate in solid form. The film material may be polyvinyl chloride and other polyvinyl derivatives, polystyrene, co-polymers of styrene and methylmethacrylate and/or butadiene, polymethylene and polypropylene may be used.
Patent GB-254188-A (GB)
Title: Improvements in electrodes for use in electrolytic systems for protecting boilers and the like
IPC: C02F1/48
Filed: 1925-12-14
Abstract: 254,188. Kirkaldy, A. Dec. 14, 1925. Incrustation and corrosion, preventing.-An electrode for use in the electrolytic protection of boilers comprises a metallic tube threaded to screw into the boiler shell and adapted to enclose a conductor connecting a terminal and an anode. The tube 3 is separated by an insulating sleeve 13 from the conductor 12 which has a threaded end 11 to engage a fitting 9 connected by a rod 24 with the anode 26. Flanges 7 and 17 on the tube 3 and fitting 9 respectively are secured by bolts 18 insulated by mica discs 33, 36 and layers 37 of copper gauze saturated with a non-conducting and moisture proof composition. A porcelain distance piece 27 surrounds the fitting 9 and the rod 24. Specifications 224,238 and 225,222 are referred to.
Patent GB-338310-A (GB)
IPC: H04B1/08
Filed: 1929-10-17
Abstract: 338,310. Sachsenwerk Licht - und Kraft-Akt.-Ges. April 13, 1929, [Convention date]. Loud-speakers.-In a combined :gramophone, wireless receiver or amplifier, and cone loud. speaker, the cone h is arranged below and coaxially with the gramophone turntable h<1>, the driving motor k of which is housed within the cone whilst the wireless apparatus is accommodated in a compartment surrounding the outside of the cone. In the form shown, the motor k is surrounded by a conical baffle p attached to the motor-board b and the sound waves pass between the cones p, h and are emitted through openings m in the gramophone cabinet.
Patent GB-967519-A (GB)
Title: Improvements in or relating to nuclear fuel components
Inventor: HOOPER ALAN THOMAS
IPC: G21C3/32
Filed: 1962-08-16
Abstract: 967,519. Fuel elements. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Aug. 15,1963 [Aug. 16, 1962],No. 31569/62. Heading G6C. A nuclear reactor core component comprises an annular column of spines, at least some of which support fissile bodies, each spine being joined by  links to at least one of the adjacent spines so as to allow relative articulation therebetween. Thus, spines 6 have short tubular ceramic or graphitic fuel bodies 5 mounted on them, and are joined together by links 7 spaced apart by the fuel bodies. The annular fuel column is mounted in an annular coolant passage 4 formed by an outer hexagonal section column 1 of ceramic moderator (it may alternatively be of square or triangular section) and an inner tube or rod 3, the tube may enclose a control rod. Alternatively, the core may be in the form of a solid block with a lattice of cylindrical holes, each adapted to receive an inner rod or tube. The links have projections 7c for centring the assembly in the coolant channel. The coolant channel walls are preferably formed with helical grooves to encourage helical flow of the coolant. The links may also be arranged on helical paths for the same reason. A fuel element incorporating the invention (Fig. 5) includes a top cap 18 which supports a metal liner 17a within the inner tube. At the bottom of this tube is mounted a locating core 23 which in turn retains a spring 22. The spring 22 acts on an axially slidable ring 25 which compressively urges the inner tube 17 and the outer hexagonal column  10 against the top cap 18. Three compression rods 19 urge a ring 30 upwardly against the bottom of the fuel supporting spines 14 which thereby are forced into abutment with the top cap 18. The outer tube includes a steel extension 10a.
Patent GB-482970-A (GB)
Title: Improvements in the manufacture and production of alcohols of high molecular weight
IPC: C07C31/18
Filed: 1936-11-18
Abstract: High-molecular-weight hydroxylated condensation products are prepared by condensing crotonaldehyde, or an aldehyde capable of being converted into crotonaldehyde, by means of an alkali alcoholate and hydrogenating the resulting products.  There may also be present during the condensation substances having a reactive hydrogen atom and/or a polymerizable double linkage, such as acetone, methyl ethyl ketone, methyl vinyl ketones, cyclopentanone, cyclohexanone, formaldehyde, isobutylene, di-iso-butylene, vinyl ethers, vinyl esters, acrylic esters, acrylic nitrile, and maleic acid.  Suitable condensing agents include sodium methylate, potassium methylate, lithium methylate, sodium ethylate, sodium butylate, mono- and di-sodium glycolate dissolved in methanol, ethanol and butanol.  The hydrogenation may be effected in the presence of cobalt, copper or precious metals.  The products may be used as assistants for the textile, tanning and related industries, as synthetic resins, plastic masses or softening agents.  In examples: (1) crotonaldehyde is condensed by means of a solution of sodium or sodium hydroxide in methanol and the product hydrogenated in the presence of nickel; (2) crotonaldehyde is condensed in the presence of acetone by means of a solution of sodium in butanol and the product hydrogenated; (3) crotonaldehyde is condensed in the presence of maleic anhydride, cyclohexanone, methyl ethyl ketone, ethyl acrylate, vinyl ethyl ketone, di-iso-butylene, phenol, paraformaldehyde, or phenol and paraformaldehyde, by means of a solution of sodium in methanol.
Patent GB-1123858-A (GB)
Title: Dry-cleaning solvent composition
Inventor: LEVY SHELDON GARY
IPC: C11D3/43
Filed: 1967-07-10
Abstract: A dry cleaning solvent composition comprising an anionic or nonionic organic detergent and as a stabilizer a benzotriazole having the formula <FORM:1123858/C4-C5/1> wherein R is an alkyl radical having from 1-18, preferably 1-4 carbon atoms, and n is 0 or an integer from 1 to 4, preferably 0 or 1.  The organic detergent is preferably an alkylamine, alkylbenzene sulphonate or an aryl phosphate ester-ethylene oxide adduct.  The dry cleaning solvent may be perchloroethylene or dry cleaning naphtha.  The amount of stabilizer in the composition may be from 10 to 250 parts per million parts of solvent and detergent.
Patent GB-813817-A (GB)
Title: Improvements in or relating to mixers
Inventor: FORD DENIS SPENCER
IPC: B01F7/00
Filed: 1956-10-18
Abstract: 813,817. Mixing appliances. PREMIER COLLOID MILLS Ltd. Oct. 17, 1957 [Oct. 18, 1956], No. 31704/56. Class 86 A rotatable stirring device comprises a cylindrical shell 2 having a number of slot-like apertures 2a for the passage of liquid, while the central core 3 has a corresponding number of vanes 3a each of which is preferably arranged adjacent to the trailing edge of its corresponding slot 2a. The arrangement ensures that there is no drag in the liquid within the shell, which would result in inefficient passage of the liquid through the slots. Specification 664,464 is referred to.
Patent GB-1074124-A (GB)
Title: Improvements in electric devices which have a sealed envelope of vitreous or ceramic insulating refractoy material
IPC: H01J5/42
Filed: 1963-08-12
Abstract: An electric device having electrodes or terminals contained in a sealed envelope of vitreous or ceramic refractory material has, for each electrode or terminal, a lead-in conducting member comprising, in hermetic association with the envelope, a hermetic body of particles sintered or fused together, the particles consisting of a core of electrically insulating or poorly conducting refractory material having a coating of a refractory electrically conducting material thereon.  Each particle core may be of alumina, silica, titanium oxide or silicon carbide and the particle coating may be rhodium, molybdenum or tungsten.