baber/WOPTO huggingface dataset:
Patent GB-241413-A (GB)
Title: Improved process for the extraction of nitrogen compounds from the air
IPC: C01B21/20
Filed: 1924-12-10
Abstract: 241,413. Spõth, C. Dec. 10, 1924. Nitric acid. - Water or other liquid which yields hydrogen and oxygen when dissociated is introduced into the electric arc in the fixation of nitrogen from air by means of an electric discharge. The apparatus shown in the Figure is enclosed in a casing 1 into which electrodes 2, 3 extend. The electrode 3 is hollow and the liquid is introduced into it through a supply pipe 4. Within the electrode is a metal pin-valve 5 which by rotation of a screw 6 enables the flow of water 6 to be controlled. Water in a vessel 8 fulfils the double purpose of cooling the electrode 2 and also the walls of the casing 1, the cooling water being supplied through pipe 10,.passing through outlets 9 and down the walls of the casing and finally being withdrawn as nitric acid at 12. Air is admitted to the furnace through holes 11. Dilute aqueous solutions of salts or acids and alcohol are examples of liquids which may be injected into the arc instead of water. Copper, cadmium and alloys thereof when used for the electrodes act as catalysts in the fixation process.
Patent GB-957769-A (GB)
Title: A substituted benzamide and pharmaceutical compositions containing it
IPC: A61K31/16
Filed: 1962-08-02
Abstract: The invention comprises 3,5-dimethoxy-4-n-butoxy-benzamide and the preparation thereof by reacting 3,4,5-trimethoxybenzamide with sulphuric acid and reacting the thus-obtained 3,5-dimethoxy-4-hydroxy-benzamide with n-butyl bromide. An example is given.ALSO:A sedative, tranquillizing or analgesic composition comprises 3,5-dimethoxy-4-n-butoxy-benzamide and a pharmaceutical carrier. It may also contain a barbiturate, the sleep-inducing effect of this being increased.  Tablets, pills and suppositories are referred to.
Patent GB-686628-A (GB)
Title: Improvements in or relating to automatic firearms
IPC: F41A3/82
Filed: 1950-12-05
Abstract: 686,628. Automatic firearms. PATCHETT, G. W., and STERLING ENGINEERING CO., Ltd. Dec. 5, 1950, No. 29763/50. Class 92(ii) To increase the energy imparted to the bolt 2 and firing pin 6 of an automatic firearm two springs 12, 13 of differing compression values are provided, these springs being coaxially and telescopically mounted and being. combined with a coaxial abutment cap 8 slidable in a recess 7 of the bolt. The cap provides an abutment for the rear end of the inner spring 13 and for the forward end of the outer spring 12, and in the construction shown has a flange 9 which lightly engages the cylindrical wall of the recess 7 and forms the abutment for the spring 12. In a modification the firing pin is integral with the bolt 2.
Patent GB-484883-A (GB)
Title: Improvements in or relating to electric modulating apparatus
IPC: H03C1/58
Filed: 1937-11-01
Abstract: 484,883. Modulating apparatus. SIEMENS & HALSKE AKT.-GES. Nov. 1, 1937, No. 29856. Convention date, Oct. 31, 1936. [Class 40 (v)] In known modulator arrangements comprising at least four rectifiers G1-G4 in a balanced bridge, unbalance due to dissimilarity causing a current of frequency equal to that of one of the input voltages to appear in the output, is compensated for by supplying to the primary of the output transformer and/or the secondary of an input transformer suitable oscillations to neutralize the undesired component. In the arrangement shown, carrier frequency F in the output R2 is compensated by the impedance R connected from input terminal 15 to one end of output transformer II. The same compensation could be effected by con.- necting terminal 16 through a suitable impedance to the secondary of the signal input transformer. The impedance R may be of any form and may consist of two portions, for instance a resistance connecting points 15 and 9, and a condenser connecting points 15 ane 10. If R has an inductive component, this may be supplied by the leakage inductance of the transformer windings.
Patent GB-369161-A (GB)
Title: Improvements in or relating to electric resistances
IPC: H01C1/148
Filed: 1931-10-28
Abstract: 369,161. W i r e resistances. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 28, 1931, No. 29935. Convention date, Feb. 7. [Class 37.] Contact caps are fitted to the ends of a heating element, in which resistance wire 12 is wound round an insulating former 10 and embedded in enamel 13, by spraying thereon a non-oxidizable metal of suitably high melting point. The construction ensures hermetical sealing of the wire, and so prevents oxidation occurring.
Patent GB-1521761-A (GB)
Title: Investigating an object with radiation
IPC: G01N23/04
Filed: 1975-07-16
Abstract: 1521761 High resolution imaging MAXPLANCK-GES ZUR FORDERUNG DER WISSENSCHAFTEN EV 16 July 1975 [17 July 1974 31 Jan 1975 19 March 1975] 29940/75 Heading H4F Apparatus for producing an image of an object 5 irradiated by, for example, X-rays, gamma rays, U.V. or electron radiation, comprises a target 6, for emitting light in response to radiation received after interaction with the object 5, a television camera (coupled to a monitor) or image intensifying tube 9, and an optical magnifying system 7 for directing the image at the target 6 on to the camera or intensifying tube and for equalizing the resolution of the two. The radiation may be collimated by crystal 3 or may be directed directly through the object (Fig. 2, not shown). Alternatively the radiation may pass through a small gap for shaping the beam.
Patent GB-959525-A (GB)
Title: Improvements in or relating to heat-curable silicone compositions
IPC: C08L83/04
Filed: 1962-08-03
Abstract: A heat-curable composition consists essentially of (1) hydroxylated organosilicon polymers selected from (A) organopolysiloxanes in which the organic radicals are monovalent hydrocarbon (saturated or unsaturated) or substituted (preferably halogenated) hydrocarbon radicals, and (B) polymers containing: <FORM:0959525/C3/1> units, wherein X is divalent radical composed of C and H atoms and not more than one O atom which, if present, is in a: <FORM:0959525/C3/2> group, and Y is an organic radical as at (A), the polymers containing at least 20H groups per molecule and an average of 1.95 to 2.05 monovalent organic radicals per Si atom and having an average of at least 400 Si atoms per molecule, (2) at least 10%, by weight of (1), of a modified silica filter-comprising finely divided hydrophobic particles having a surface area of at least 100 m2/g, each particle consisting essentially of a polymeric siliceous substrate composed of (A) 50 to 100 mol per cent of units of the formula SiO2, and (B) 0 to 50 mol. per cent of units of the formula RSiO1.5, wherein R is an alkyl radical of 1 to 5 C atoms or a phenyl radical, there being (C) organosilyl units of the formula R1R11Si= or R12R11Si-, wherein R1 is an alkyl radical of 1 to 5 C atoms or a phenyl radical, and R11 is an alkyl radical of 1 to 5 C atoms or a 3,3,3,-trifluoropropyl or phenyl radical, in an amount such that the molar ratio of (C) units to total (A) and (B) units is not in excess of 0.6, the organosilyl units being attached to Si atoms in the surface of the substrate through Si-O-Si linkages. and (3) at least 0.1%, by weight of (1), of cyanoguanidine. The modified silicas used may be those made by the methods disclosed in Specifications 699,759 and 783,868. Filler extenders such as diatomaceous earth may also be added. If desired, from 0.1 to 2.0% by weight of the polymer, of an organic peroxide and, as a thermal stabilizer, from 0.1 to 50% of an organic silicate, may be added. The composition can be cured by heating at 160 DEG  to 200 DEG C. for 10 to 15 minutes, but by using a large amount of cyanoguanidine and using hot air vulcanisation, a tough sponge is obtained. Examples are given of the above composition. In Example (4), the mixture of a hydroxy-terminated dimethylpolysiloxane, a trimethylsilyl-modifie silica filler, ethylpolysilicate and cyanoguanidine, vulcanised at 150 DEG C. in a hot air oven to an elastic sponge. Specification 925,433 also is referred to.
Patent GB-1525524-A (GB)
Title: Internal combustion engine having exhaust gas recirculation and exhaust gas reactor
IPC: F01N3/26
Filed: 1976-07-19
Abstract: 1525524 Exhaust reactors NISSAN MOTOR CO Ltd 19 July 1976 [25 July 1975] 30018/76 Heading F1B The exhaust gas from an I.C. engine having exhaust gas recirculation (E.G.R.) is maintained in the thermal reactor 44 for sufficient time to cause complete reaction by the double chamber design having an effective volume of 1À5 to 5À0 times the engine displacement. Thermal insulation 52  surrounds the outer chamber well 48 and is present between the head and the exhaust passage liner 42. The engine may be the torch ignition type Fig. 1 (not shown) and the exhaust gas recirculation system may supply either or both of the inlet passages to the main and auxiliary chambers respectively Fig. 2 (not shown).
Patent GB-505030-A (GB)
Title: Improvements in and relating to thermionic amplifiers
IPC: H03F1/04
Filed: 1937-11-03
Abstract: 505,030. Valve amplifying circuits. REDIFFUSION, Ltd., and ADORJAN, P. Nov. 3, 1937, No. 30105. [Class 40 (v)] The input circuit of the rectifier supplying a thermionic amplifier includes a saturable core choke, the saturating winding of which is in the output circuit of the rectifier whilst the effect of the standing current in the output circuit is neutralized by an additional winding. The invention is described to eliminate distortion in a class B parallel push pull amplifier fed by a class A amplifier, the whole of the anode supply passing through the saturating winding whilst the anode current to the class A amplifier only passes through the neutralizing winding. The class B amplifier comprises valves V1-V4 connected in parallel push-pull which are driven by push-pull connected triodes V5, V6. through transformer T1, some or all the secondaries of which are shunted by condenser resistance combinations C1, R1 to prevent the secondaries resonating at 15-20,000 c.p.s. and coupled with chokes HFC to eliminate parasitic oscillations. Grid bias of the final valves is obtained from a power unit GB whilst resistances R2, R3 in the grid circuits of the driver valves ensure that the valves are biassed back by grid current if the valves are overloaded. The anode current is supplied from the gas filled rectifiers V7, V8 having the usual smoothing chokes L1 and condensers C2. A saturable core choke L is included in the circuit to the primary winding of transformer T3, the saturation being controlled automatically by means of a second winding La through which is passed the whole or part of the D.C. output of the rectifier, the second winding being connected between the smoothing, condensers C2 to prevent the introduction of A.C. 'into the circuit. The magnetization of the core due to the standing current is decreased, preferably to zero, by passing a constant current through a third winding Lb of the choke; the constant current being conveniently obtained from the anode current of the class A amplifying valves V5, V6. For convenience the choke L may be divided as shown, some of the winding being connected in parallel and some in series. Delay switching is provided by switches SW1, SW2, the first switch controlling the filament supply and the second the high tension supply. When switch SW2 is closed a motor driving cam SW3 is started which, after an interval of say 2¢ minutes closes by means SW4, the primary circuit of high tension transformer T3 through resistance R4 and after a further 15 secs. shorts out R4 by switch SW5.
Patent GB-828113-A (GB)
Title: Hand knitting apparatus
IPC: D04B39/00
Filed: 1957-09-25
Abstract: 828,113. Knitting-machines. PALIZ-HOLDING A.G. Sept. 25, 1957 [Sept. 26, 1956], No. 30110/57. Class 74 (2). As the cam lock of a hand knitting- machine is traversed, a toothed wheel 23 or 23<SP>1</SP> is rotated by engagement with the teeth 14 of a knockover comb or of a separate rack and that rotation is transmitted to the appropriate one of fabric take-down rollers 27, 28, Figs. 1 and 3, or of rollers 27<SP>1</SP>, 28<SP>1</SP>, Fig. 5. In Figs. 1 and 3, the wheel 23 is secured to one end of a shaft 22, to the other end of which is fixed a bevel pinion 21 which drives pinions 19, 20 secured to shafts 17, 18 on which the rollers 27, 28 are loosely mounted. As the cam lock is traversed, the friction between rollers and fabrics drags the rollers along their shafts until buttress teeth on the trailing roller are clutched to and driven by coacting teeth 29 (say) on the roller shaft and similar teeth on the leading roller are brought out of engagement with the corresponding coacting teeth 30 (say) on its shaft. Thus, the trailing roller is rotated to pull down the fabric under the advancing needles. A rod 33 prevents winding of a hanging thread on the rotating roller or entangling of a thread in the clutch teeth. If the rollers are so positioned that it is the leading one that must be rotated, the toothed clutches will be located at the inner, adjacent ends of the shafts 17, 18 and the gear 21 will be mounted at the same end of the shaft 22 as is the wheel 23. In Fig. 5, the rollers 271, 28<SP>1</SP> are fixed to their shafts 171, 18<SP>1</SP> and the drive transmitting shaft 221 is borne in a bracket 24<SP>1</SP> pivoted at 34 so that, as the lock is traversed, the reaction between toothed wheel 23<SP>1</SP> and the teeth 14 swings the bracket into that position in which a pinion on shaft 22<SP>1</SP> engages only that one of pinions 19<SP>1</SP>, 20<SP>1</SP> which is associated with the trailing roller. The pair of rollers may be replaced by a single roller which is long enough, or which has sufficient axial movement to ensure that it is always beneath the advancing needles. The rollers may be urged against the fabric by springs 26; or they may be made of a yieldable material. The surface of the rollers may be grooved axially or helically, or may bear protuberances or brushes. As the lock is traversed, the needles swing the leading one of cams 101, 102, about pivot 110, or 111, against the action of a weak spring, from the position in which its tip engages a rail 115 into that position in which it engages a cam 103; and the needles are then retracted by that leading earn and cam 103, and are advanced by the trailing cam.
Patent GB-963365-A (GB)
Title: Improvements in and relating to etching copper plates
IPC: C25F3/02
Filed: 1961-08-22
Abstract: Copper plates, e.g. for photo-engraving, are etched and the copper dissolved after a masking pattern has been applied to the plate, using as electrolyte a soluble persulphate preferably of alkali metal or ammonia, and applying a voltage below that of copper deposition, e.g. in the range 0.3-1V. Preferably a solution containing 10-45% of ammonium persulphate is used, at temperatures up to 100  DEG F., using a mercury cathode.  A trace of mercury as activator may be present in the electrolyte. Specifications 867,573 and 873,583 are referred to.
Patent GB-376138-A (GB)
Title: Improvements in cable connectors
IPC: H01R4/22
Filed: 1931-10-31
Abstract: 376,138. Sleeve couplings ; cable end sleeves. SCHLEPER, J. F., 144, Keizersgracht, Amsterdam. Oct. 31, 1931, No. 30251. [Classes 36 and 38 (i).] A connector of the kind described in Specification 194,956, [Class 138 (i), Washing and cleaning buildings &c.], for joining flex or capping a cable core, comprises a tapering screwed sleeve 3 with a bell mouth 4 to guide the wires thereinto, and an insulating cap 1 that screws on a thread 5 located rearwardly of the bell-mouthed portion of the sleeve. The cap 1 has a flared opening 2 corresponding to the bell mouth 4. The sleeve 3 may be formed of a helical spring.
Patent GB-446097-A (GB)
Title: Improvements in and relating to web roll supports
IPC: B65H16/02
Filed: 1934-10-23
Abstract: 446,097. Feeding webs. CLEMO, F. A., 9, Kingsway, London.-(Wood Newspaper Machinery Corporation; 501, 5th Avenue, New York, U.S.A.) Oct. 23, 1934, No. 30345. [Class 100 (i)] A web-roll supporting device having pairs of web-roll supporting arms mounted for conjoint rotation about a common axis is characterized in that one arm of at least one pair is adjustable in a direction longitudinal of the axis independently of all the other arms. As shown, two pedestals 10 support a powerdriven rotatable shaft 11 which has fixed thereto a central frame 12 having three slotted sides. Three web rolls are supported by three pairs of arms 14, each arm having a T-slot adapted to slidably engage one of the sides of the frame 12. Each arm has provided in the T-slot a screw-threaded projection 15 adapted to project into one of the slots of the frame 12 and to be engaged by a screw 16. The screws 16 can be rotated through gearing 18 from motors 20 mounted on the frame 12. Operation of any of the six motors 20 will rotate its screw 16 to cause one arm 14 to move forward or backward along the shaft 11.
Patent GB-333792-A (GB)
Title: Improvement in process of and apparatus for cleaning the tubes of water tube boilers
IPC: F28G3/16
Filed: 1929-10-07
Abstract: 333,792. Weis, H. T. Oct. 25, 1928, [Convention date,]. Cleaning, fluid-pressure processes for.-Relates to apparatus for cleaning the tubes 12 of watertube boilers of the kind wherein cleaning fluid is supplied to a tube 13 which is formed with nozzles 19 and is rotatably mounted in the combustion chamber of the boiler. The nozzles 19 are normally closed by valves 28 which open when highpressure cleaning water, or water and air, is admitted to the tube 13, but which allow low-pressure cooling water to circulate therethrough from an inlet 16 to an outlet 17 during the intervals between cleaning. The inlet and outlet pipes 16, 17 are provided with valves 37, 38 respectively which are opened when the cooling water, controlled by a valve 18 in the inlet pipe, is circulated; when however the cleaning water valve 31, and, if desired, an air valve 32<1> are opened the outlet valve 38 is closed. The valves 28 are each disposed within a two-part housing 19, 22 and are normally held on a seating 26 in the inner part 22 by a spring 30. The cleaning tube is rotated from a pulley 35 through suitable gearing, swivelling joints 15 being provided between the said tube and the inlet and outlet pipes 16, 17.
Patent GB-270978-A (GB)
Title: Improvements in joint fastenings for wood and the like
IPC: E04B1/49
Filed: 1926-12-02
Abstract: 270,978. Peterz¾n, T., Andersin, B. S., and Mikonsaari, A. W. Dec. 2, 1926. Pins, dowel; pinning or dowelling.-In carpenters' joints, particularly for joining boards placed edgewise together, a plate 1 having diametrically opposite teeth or rows of teeth is inserted in slots cut in the boards with the teeth in the position 2a and is rotated when the boards are in position till the teeth are in the position 2<b>. A semi-circular aperture 14 is cut in each board by the tool which cuts the slot to allow the introduction of a tool for engaging a square hole in the plate. The plate may be corrugated and the hole for engagement with the teeth may be eccentric when one of the boards is narrow. The slots may be formed with shoulders for engagement with the teeth.
Patent GB-1148168-A (GB)
Title: Pigment compositions
Inventor: PORTER ROY
IPC: C08J3/22
Filed: 1966-07-07
Abstract: 1,148,168. Rosin-modified phenolic resins, composition, nitrocellulose composition. IMPERIAL CHEMICAL INDUSTRIES Ltd. 16 June, 1967 [7 July, 1966], No. 30573/66. Addition to 978,242. Headings C3F and C3R. [Also in Divisions C4-C5] In the solid pigment composition of Specification 978,242, the resin is an unesterified rosin-modified phenolic resin, particularly a phenol-formaldehyde resin. The pigment may be organic, inorganic or carbon black, and a number are listed. In Examples 1 and 8 the compositions are dispersed in a paint containing TiO 2  and a 69% oil length linseed pentaerythritol phthalate alkyd resin; in Examples 10(a) and (b) printing inks are produced using media comprising (a) an esterified modified rosin and ethanol, and (b) nitrocellulose, a short oil length non-drying alkyd resin, methyl ethyl ketone, and ethyl acetate. In Example 1 the phenolic resin is prepared from wood rosin, cresol, paraformaldehyde and magnesium oxide.
Patent GB-1466683-A (GB)
Title: Suspensions in non-aqueous fluid media
IPC: C09D7/45
Filed: 1974-07-10
Abstract: 1466683 Non-aqueous suspensions KUSOMOTO CHEMICALS Ltd 10 July 1974 [16 July 1973] 30575/74 Headings C3B C3P and C3R A non-aqueous fluid composition contains finely-divided solid particles and (I) an amide wax and (II) an emulsifiable polyethylene wax, where wax (I) has m.p. 100-160 C. and is obtained by reaction of amines with organic acid(s) comprising 30-100% moles by hydrogenated castor-oil fatty-acid; and where wax (II) has acid No. 2-50, softening point 95-120 C., density of 0À92-0À98, and penetration of 1-20. The waxes improve the rheological and suspension properties. Also present in the composition may be oil-modified or petroleum-resin-compounding alkyd resins, epoxy, epoxyester, polyvinyl-butyral, butyrated melamine, and/or polybutene resins, or unsaturated-polyester/styrene. Conventional paint additives may be present. Waxes (I) and (II) may be incorporated separately or as a mixture, as powder or as a dispersion.
Patent GB-1335509-A (GB)
Title: Method for the treatment of irradiated nuclear fuel elements
IPC: G21C19/34
Filed: 1972-06-30
Abstract: 1335509 Treating spent nuclear fuel elements EUROPEAN ATOMIC ENERGY COMMUNITY 30 June 1972 [4 Aug 1971] 30676/72 Heading G6R An irradiated nuclear fuel element, consisting of an elongated can containing a number of coated fuel rods is treated by introducing a molten alloy into the space between the can and the rods. The alloy has a melting point of 700 C. or higher and a boiling point above 1000 C. and may be, for example, Al-Mn, Cu-Mg, Cu-Si, or Cu-Sn. The alloy solidifies and provides means for stiffening the fuel element for transportation, and for conducting heat from the rods to the can. The fuel element may be a fast reactor element which is subsequently cut open and leached with a molten oxidizing salt solution.
Patent GB-1080044-A (GB)
Title: Closure for a container
IPC: F16J13/02
Filed: 1965-07-20
Abstract: 1,080,044. Container closures. DUNLOP RUBBER CO. Ltd. July 20, 1965 [Aug. 5, 1964], No. 30728/65. Heading B8T. A container closure comprises two peripherally bonded resilient plates 1, 2, one of which carries a valve 3 through which a pressure medium may be passed into the enclosed chamber 7, thereby forming an inflated body 8 of reduced effective diameter. On insertion into the container mouth the pressure may be released; increasing the effective diameter again through the radial resilience of the plates, and forming a tight fit in an annular groove in the container wall. The plates may be of metal soldered around their peripheries, or of rubber bonded together peripherally by vulcanization. The valve 3 may be of the non- return type, and may be removed after insertion of the closure into the container mouth, thereby effecting permanent closure of the mouth.