baber/WOPTO huggingface dataset:
Patent GB-188639-A (GB)
Title: Device for regulating the flow of liquid in artillery brakes during the return to battery
IPC: F41A25/02
Filed: 1922-10-05
Abstract: 188,639. Compagnie des Forges et AciÚries de la Marine et d'HomÚ- court. Nov. 11, 1921, [Convention date]. Recoil apparatus.-Relates to hydro-pneumatic apparatus of the kind having a floating piston 12, Fig. 1, separating the air space 11 from the space 2 into which the liquid passes, on recoil, from the brake cylinder 1 by way of a spring-controlled valve 4. According to the invention, the floating piston carries a stem 13 of variable cross-section which acts during run-out to close gradually the entrance 8 to the passage 9 through which the liquid returns to the cylinder 1, a non-return valve 10 preventing liquid passing through the passage 9 during recoil. In the form shown in Fig. 1, the passage 8 is throttled by a tapered or grooved stem 13 on the piston 12; whilst in the form shown in Fig. 4, the stem 13 engages the arm 17 of a spring-controlled valve 16 in the passage 8. Alternatively, a rack on the stem 13 may engage teeth on the valve 16. Fig. 6 shows a modification which enables the run-out to be completed without shock even when there is excess of liquid in the cylinder 2. In this construction the first part of the run-out control movement is effected by the stem 13 as before, the piston 12 then contacting with a sliding spring-controlled sleeve 20 the end 24 of which is slotted to control the flow of liquid through a port 25.
Patent GB-387630-A (GB)
Title: Non-return valve adapted to avoid back-firing in internal combustion engines
IPC: F02M1/00
Filed: 1932-09-30
Abstract: 387,630. Preventing backfiring. SPAGLIABDI, R., 135, Via Garibaldi, Cornigliano, Genova, Italy. Sept. 30, 1932, No. 27245. [Classes 7 (ii) and 7 (iii).] A non-return valve for preventing backfiring comprises a casing a having flanges 1 shaped to correspond with, and adapted to be inserted between, the flanges on the carburetter and induction pipe, and a bore, within the casing, terminating in a conical seat b on which is adapted to seat a slotted, frustro-conical portion 5 of a valve member formed with an upper cylindrical part 2 freely slidable in the bore, and a lower conical or round end d which closes the bore, a wire gauze 3 being nested in the valve member and secured by a split ring 4. The gauze prevents passage of flame before the pressure generated has had time to close the valve.
Patent GB-634147-A (GB)
Title: Plant for cereal-grinding such as flour mills
IPC: B02C11/08
Filed: 1945-10-17
Abstract: 634,147. Grinding cereals. HUTCHINS, C. A., and HOVIS, Ltd. Oct. 17, 1945, No. 27265. [Class 58] [Also in Group II] A plant for cereal-grinding (such as a flour mill) comprises the combination with an enclosed mill unit, such as a roller mill 12, a centrifugal dressing machine, a plansifter or a purifier, of an air-conditioning apparatus 13, an air circulation device (such as a fan) 14 and conduits 161, 191 connecting these to the mill unit to supply conditioned air to the mill unit to replace the humid air withdrawn from the mill unit by an exhaust system and so ensure that the air in the mill unit and passed on to other (and cooler) operating parts of the plant will be in a condition to prohibit the deposit of moisture in the plant. As shown in Fig. 1, roller mills 12 are connected in parallel, the air inlet being taken from a common manifold 16 and the exhaust from an exhaust diffuser 18 connected to a manifold 19 which leads via a suction-filter dust collector 15 and the fan 14 to the conditioner 13. The conditioned air supply pipes 161 lead, to a conditioned air diffuser 17 in each roller mill. As shown in Fig. 2, the diffuser 17 tapers internally from a maximum section at the inlet to a minimum at the other end which is closed at 171, the outlet for the air consisting of a longitudinal tapering slot 172 with its narrow end nearer the inlet 170. As an alternative. the slot may be of uniform width and in another alternative the conduit may be of uniform section with a longitudinal tapering slot having its narrow end nearer the air inlet. The exhaust diffuser 18 comprises two tapering and contiguous conduits 183, 184 with a longitudinal tapering slot 185 connecting them, the narrower end being nearer the inlet 182 and also another longitudinal tapering slot 186 for admission of exhaust air from the mill casing the narrow end being nearer the exhaust outlet 181. Alternatively, the conduits 183, 184 may be tapering and contiguous as shown but the slots 185, 186 may be of uniform width. In another alternative, the diffuser 18 may comprise two parallel and contiguous uniform sectioned conduits in which the slots are tapered so that the narrow end of the one between the conduits is nearer the inlet and of the other nearer the exhaust outlet. The longitudinal slots may have baffle plates on the outside to reduce the velocity of the air drawn towards the exhaust diffuser from inside the mill. A valve 20 is provided to regulate the flow through the fan and air conditioner by by-passing part of the conditioned air into the exhaust diffuser to balance the quantity exhausted from the machine with the amount admitted. Specification 634,209 is referred to.
Patent GB-772435-A (GB)
Title: Improvements in or relating to sintered metallic bodies and their manufacture
IPC: C22C32/00
Filed: 1952-10-30
Abstract: A sintered metallic body consists of a major constituent composed of a basis metal or an alloy of two or more basis metals, and a minor constituent which is a complex composed of the atoms of a metal and a non-metal which are capable of forming a compound substantially insoluble in the major constituent or of two or more such complexes, said complex or complexes having been formed during sintering and being in a state of incipient precipitation in zones distributed uniformly throughout the major constituent the said state being stable at and below the sintering temperature.  The basis metal or metals may be one or more of the metals Fe, Al, Cr, Co, Cu, Mg, Mo, Ni, Ta, Ti, W, Zr and the minor constituent one or more of the silicides, borides, nitrides, carbides and oxides of Ti, Zr, V, Nb, Ta, Cr, Mo, W and Te.  The body is preferably made by sintering together mixed powders in which the metal and non-metal of the minor constituent are present as compounds or alloys of each with one or other of the basis metals.  For example a mixture of powders of Ni-Ti alloy, Ni-Si alloy and Ni may be sintered to give a body containing a Ti-Si complex.  A body containing a Ti-B complex may be made similarly.  The complex or complexes preferably from 2-10 per cent of the metallic body.  The production of a Co-W alloy containing a Ti-B complex under similar conditions is referred to in the Provisional Specifications.
Patent GB-1413611-A (GB)
Title: X-ray spectrometer
IPC: G01N23/225
Filed: 1973-06-08
Abstract: 1413611 X-ray spectrometers; electron beam apparatus SOC NATIONALE DES PETROLES D'AQUITAINE 8 June 1973 [8 June 1972] 27396/73 Heading H1D [Also in Division H5] An X-ray spectrometer apparatus comprises a cold cathode electron source 1 producing a beam of electrons which is deflected at 22 and focused at 21 on to a rotating sample 13<SP>1</SP>, a curved crystal 14 for analysing the X-rays from the specimen and focusing them on the inlet slit of a gas flux counter 15. The electron source, Figs. 6 and 7 (not shown), comprises a cold cathode (4) in the form of a circle or line and an anode (2) having an aperture (3) shaped as a circle or line, the arrangement being such as to produce a beam having a narrow rectangular cross-section, e.g. 0À5 mm. by 20À0 mm. Fig. 11  (not shown) depicts a sample holder for powder consisting of an annular channel and blades arranged to smooth the powder as the holder rotates. An electrostatic focusing arrangement, Fig. 13 (not shown), comprises successively narrower slits through which the beam passes, the slits being at adjustable negative potentials.
Patent GB-288562-A (GB)
Title: Differential protective systems for electrical machinery and apparatus
IPC: H02H3/28
Filed: 1927-10-15
Abstract: 288,562. Allmõnna Svenska Elektriska Aktiebolaget. April 12. 1927, [Convention date]. Cut - out arrangements.-In a balanced protective system of the Merz- Price type for machines and apparatus, in order to make the current transformers 2<1>, 2<11> with the differentially-connected secondaries 4<1>, 4<11> available for other purposes (such as the operation of measuring instruments or other relays) similar auxiliary secondaries 3', 3<11> are wound in the same sense on each transformer and these auxiliary secondaries are connected together for circulating current in the measuring instruments &c. The relay 5 is set so that the maximum current arising from inherent differences in the characteristics of the transformers due to equal currents through both of them is inadequate to operate the relay. Further, to avoid incorrect release the current transformers are so chosen that their magnetizing current corresponding to the secondary voltage necessary to effect release of the relays is of the same order of magnitude as the release current.
Patent GB-616764-A (GB)
Title: Improvements in and relating to electric follow-up control systems
IPC: G05D3/14
Filed: 1946-09-12
Abstract: 616,764. Electric correspondence control systems. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 12 1946, No. 27442.. Convention date, Nov. 30, 1943. [Class 40 (i)] In a follow-up control system, positional correspondence between the controlled object and the pilot device is effected by coarse and fine controlling means producing periodically varying control voltages which are selectively transferred to effect control in response to the magnitude of the disagreement and in which the coarse control voltage is de-phased relative to the fire control voltage and an A.C. voltage is applied to the coarse control circuit to neutralise the de-phase voltage component at zero disagreement. As shown, the object 10 is driven into positional correspondence with device 11 by D.C. motor 12 which is supplied from the constant speed, armature-reaction excited generator 13 driven by A.C. motor 15. Control field windings 13c, 13d of machine 13 are connected in the anode-cathode circuits of an amplifier comprising beam power amplifier valves 16, 17 which are self-biassed by resistor 18 and supplied with anode voltage from the A.C. source 20 through the secondaries 19a, 19b of transformer 19. The grids 16b, 17b are energized in phase with their respective anodes but 180 degrees out of phase with each other by the parallel connected secondaries 22a, 22b of the transformer 22, the primary of which is supplied from the A.C. source 25 through the selsyn transmitter 26 and similarly constructed receiver regulator 27. The rotors and stators of both 26, 27 have single and three-phase windings respectively. The rotors of 26, 27 are connected by gear trains of the same ratio to the device 11 and the object 10 respectively to effect fine control thereby. Coarse control is effected by the transmitter 29 and receiver regulator 30 which are of identical design to the transmitter 16 and regulator 27. The error output from 30 is applied to transformer 31, the secondary 31b, of which is connected to the grids 16b, 17b, through neon tubes 32, 33. When the error between 10, 11 is less than seven degrees, the voltage developed at the winding 31b is large enough to cause the gas in tubes 32, 33 to become conducting, thus connecting the coarse control units 29, 33 to the grids 16b, 17b. To prevent the synchronizing of 10 and 11 at 180 degrees relative displacement, the secondary 19c of transformer 19 is connected in series with the primary 31a of transformer 31, and the transmitter 29 and receiver regulator 30 are misaligned by an angle 90/n, where - n is the ratio between the coarse and fine systems, so that the misalignment and injected voltages are mutually neutralising at zero deflection.
Patent GB-1406338-A (GB)
Title: Combustion method and apparatus for materials containing a radioactive isotope tracer
IPC: F23C99/00
Filed: 1973-06-08
Abstract: 1406338 Processing radio-active material PACKARD INSTRUMENT CO Inc 8 June 1973 [19 June 1972] 27486/76 Heading G6R [Also in Division F4] In a method of burning a radio-active material in a combustion chamber 10, the material is placed in a combustible cup-like container 10a which is held in an open ignition basket 11, oxygen is supplied at 12, and heat is supplied to basket 11 so as to burn completely the container and material. The material burned may contain radio-active tracers, the combustion products being analysed to determine their hydrogen and carbon isotope content. If the starting material is an aqueous liquid, butane diol may be added as a fuel. Finely powdered phosphorus sesquisulphide may be placed round the rim of the container 10a to promote ignition. The basket 11 may be formed from coiled wire through which electric current is passed to supply heat. The wire may be made of Nichrome (Registered Trade Mark) and the coils may be more closely spaced at the base, so that more oxygen is supplied to the top than to the base of the container 10a. The air in the enclosure 23 may be heated by heater 25 to prevent condensation of combustion products on the walls of combustion chamber 10. Reference has been directed by the Comptroller to Specification 1,222,588.
Patent GB-352809-A (GB)
Title: An improved device for regulating the flow of liquid
IPC: B23Q5/54
Filed: 1930-09-15
Abstract: 352,809. Wrenches. JONES & LAMSON MACHINE CO., Springfield, Vermont, U.S.A.-(Assignees of Flanders, R. E. ; Cherry Hill, Springfield, Vermont, U.S.A.) Sept. 15, 1930, No. 27548. Convention date, Oct. 10, 1929. [Class 61 (iii).] The gland nut 21 of a metering device is adjusted by means of members 31, 34; the member 34 is slidably mounted in a keyway in the member 31 and has a projection 36 adapted to extend through a slot in the rotary valve 15 and engage a notch in the inner wall of the gland nut, which may be rotated by turning the driving pulley 25 of the rotary valve. The projection 36 may be disengaged after the removal of the member 31. Specifications 23206/99 and 7674/03, [both in Class 83, Metals, Cutting &c.], are referred to.
Patent GB-1153450-A (GB)
Title: Improvements in or relating to an Ejector Unit
IPC: F04F5/46
Filed: 1966-06-20
Abstract: 1,153,450. Ejectors. SIEMENS-SCHUCKERTWERKE A. G. June 20, 1966 [June 19, 1965], No.27552/66. Heading F1E. An ejector comprises an ejector unit which includes a mixing member M, Fig. 3 supporting a nozzle member Tr so that the nozzle exit is adjacent a mixing space having an inlet opening S 3  and an uninterrupted straight passage extends axially from the nozzle exit to an upstream end of the unit, the passage having only an axial inlet upstream of the nozzle exit, and sealing O 2  between the ejector unit and a surrounding housing G 2  which is formed in a single movement of insertion of the unit into the housing. The sealing may be formed by silicone rubber O-rings. Induced fluid enters socket S 2  or via a by-pass socket S 1  when the ejector has been used to start a liquid ring pump. In other embodiments four parallel ejectors are arranged in a common housing Fig. 5 (not shown) or are arranged with their inlet and outlet sockets inter-connected by manifolds (R 2 , R 3 ) Fig.2 (not shown). The housing, mixing member and nozzle member may be of synthetic plastics e. g. polyester or epoxy resin with glass fibre reinforcement and/or a filler.
Patent GB-830937-A (GB)
Title: Method of isotope concentration
IPC: B01D59/32
Filed: 1956-09-10
Abstract: <PICT:0830937/III/1> The N15 isotope is concentrated by bringing gaseous nitric oxide into contact with an aqueous oxyacid or liquid oxide of nitrogen in which the atomic ratio of oxygen to nitrogen is greater than 1, so that the liquid is enriched by exchange of N15, wherein the gaseous nitric oxide is produced by reaction of the enriched liquid with a reducing agent, and recovering NO, or oxyacid, or liquid oxide enriched with N15.  6-12 molar aqueous nitric acid is passed from 34 into exchange column 10, which may have spaced perforated plates 12 and packing 14, or conventional bubble plates, and which may be operated at atmospheric pressure and room temperature, although a pressure of 2 atm. is also referred to.  NO enters in countercurrent at 24.  The HNO3 flows to reflux chamber 16, where it is reduced by gaseous SO2 from 40.  The aqueous sulphuric acid may be withdrawn at 44, while the oxides of nitrogen. also formed, pass to condenser 18, maintained at say 3 DEG  C., to condense less volatile components and allow the NO to pass into exchange column 10 to transfer N15 to the HNO3 therein.  The liquid from condenser 18 flows back to reflux chamber 16.  The NO gas depleted in N15 evolved from column 10 passes to reactor 26, which may be packed with raschig rings, and is converted therein, by air entering at 30 and water entering at 28, to aqueous nitric acid.  N15 enriched HNO3 may be withdrawn at 52, or enriched NO at 54.  It is stated that the reduction is controlled so that the composition of the gases passed to column 10 is about the same, as regards the various oxides of nitrogen, as that in equilibrium with the HNO3 in the column.  NO2. in particular, is catalytic for the exchange, and the partial pressure thereof is maintained at that in equilibrium with the HNO3 by adding H2O to the reflux chamber, by controlling SO2 addition in response to a colour detector at the top of column 16 working on the intensity of NO2 coloration, or by the condenser temperature.  Liquid dinitrogen tetroxide (N2O3), when the exchange column temperature is 3-5 DEG  C., or liquid dinitrogen tetroxide (N2O4), when the exchange column temperature is below 21 DEG  C., may be used in place of aqueous nitric acid.  In Fig. 2 (not shown), a plurality of units, as in Fig. 1, each having a packed stainless steel exchange column, a packed glass lined steel reflux chamber and a condenser, are provided, through which HNO3 and NO pass in countercurrent in series.  A portion of the HNO3 leaving each exchange column passes to the reflux chamber for reduction with SO2, and the NO formed passes back to the column, while the remaining HNO3 passes to the next exchange column in the series.  The HNO3 formed from the N15 depleted NO from the first column is used in an additional tower to scrub the NO from the first column.
Patent GB-501260-A (GB)
Title: Improvements in or relating to sheet metal vehicle doors
IPC: B60J5/04
Filed: 1938-09-22
Abstract: 501,260. Vehicle doors. BUDD MANUFACTURING CO., E. G. Sept. 22, 1938, No. 27617. Convention date, Sept. 23, 1937. [Class 103 (ii)] [Also in Group XXII] The inner panel of a sheet metal vehicle door comprises an upper section A containing the window opening and a lower section B spaced away from the upper section and connected to it by side rails C, D forming parts of the edges of the door. The upper section is formed with a garnish moulding 3 and a depressed flange 2 and the lower section with a depressed flange 11 and strengthening ribs 12. Both sections are suitably flanged at their edges for connection with the outer panel and are further united by corrugated bracing members 21 connected to the flanges 2, 11. The flange on the lock side of the section A is formed with a bead to co-operate with the door post. The side rail C comprises an inner portion 7 and a side portion 8 having an offset to co-operate with the door post and is flanged for connection to the outer panel. The upper part of the rail C is shaped at 7<1> so as to fit under the section A for connection thereto and at its lower end overlies the section B and is bent to conform to the shape of the lower edge of the door. The side rail D is mainly of Z section and is shaped at 20 so as to fit under the section A. Between the sections A and B it is formed with an inturned flange 17a which is flattened out at the portion 17b which overlies the section B. The rail is also flanged and shaped for connec tion with the outer panel and to conform to the shape of the lower edge of the door. As shown in Figs. 2 and 3, pairs of upper and lower sections A and B are stamped from blanks and are separated by cutting along the centre lines. The sections B are formed with offsets 15, 16 which fit the parts 7, 17b of the side rails.
Patent GB-1154781-A (GB)
Title: Manufacture of Photographic Materials
IPC: A44B19/36
Filed: 1966-06-21
Abstract: 1,154,781. Sensitizing photographic lightsensitive materials. EASTMAN KODAK CO. June 21, 1966 [June 21, 1965], No.27678/66. Heading G2C. Photographic light-sensitive materials, such as silver halide, zinc oxide or titanium dioxide materials, are optically sensitized by the addition of a sensitizing composition containing a waterinsoluble spectral sensitizing dye dispersed in an aqueous hydrophilic colloid, the average dispersed dye particle size being less than one micron diameter. The composition is made by dissolving the dye in an organic solvent, dispersing the solution into the aqueous hydrophilic colloid and removing the solvent from the dispersion by evaporation or by forming an emulsion of the solution in the colloid and allowing the solvent to dissolve into the aqueous colloid. Solvents specified include methanol, acetone, pentanol-2, n-butanol, 2-methyl-propanol, cyclohexanol, cyclohexanone, ethyl acetate, benzene and #-phenoxyethanol. The solvent may be saturated with dye at an elevated temperature before being dispersed in the colloid and a surface-active agent may be present. The sensitizing composition may be added to a silver halide emulsion, to a binder-free silver halide layer or to zinc oxide or titanium oxide.
Patent GB-1260010-A (GB)
Title: Purification of butylenes
Inventor: PINE LLOYD ALBERT
IPC: C07C7/177
Filed: 1969-06-02
Abstract: 1,260,010. Purifying n-butenes; co-dimerization. ESSO RESEARCH & ENG. CO. 2 June, 1969 [26 June, 1968], No. 27737/69. Heading C5E. Fractions rich in n-butylenes are obtained from mixtures of n- and iso-butylenes by contacting the mixtures with a supported nickel oxide catalyst above ambient temperature under conditions sufficient to polymerize (particularly dimerize) the isobutylene but insufficient for substantial conversion of the n-butylenes, the catalyst employed being one, the formation of which is finished in an acidic medium. The process may be carried out in more than one stage. Silica-alumina is a preferred catalyst support.  The purified n-butylenes obtained as above may be co-dimerized with propylene, using a supported nickel oxide catalyst but under more severe conditions than for the purification, to produce C 6-8  fractions predominating in heptenes. Reference has been directed by the Comptroller to Specification 1,171,950.
Patent GB-801525-A (GB)
Title: Improvements relating to synthetic enamel coatings for electrical conductors
IPC: H01B3/44
Filed: 1955-09-29
Abstract: An electrical insulating composition comprises polytetrafluoroethylene and fibrous glass in an amount ranging from 5 to 25 per cent by weight of the polymer.  The glass fibres preferably have diameters of from 0.1 to 1.0 microns and lengths of from 0.2 to several microns.  The composition is generally made by mixing the fibres with an aqueous slurry of polytetrafluoroethylene.  The composition is used for coating wire.