baber/WOPTO huggingface dataset:
Patent GB-960565-A (GB)
Title: Magnetic powder clutches
IPC: F16D37/02
Filed: 1963-01-29
Abstract: 960,565. Seals. V. O. ISAKOV, and A. F. LOOZKOV. Jan. 29, 1963, No. 3676/63. Heading F2B. Sealing means for the shaft 2 of a magnetic clutch comprises a labyrinth seal which is formed between a rotatable ring 3 and a non- rotatable ring 4 and is surrounded by a magnetized ring 5 itself surrounded by a non- magnetic ring 6. The rings 3 and 4 are of ferromagnetic material, the former ring being carried in a ferromagnetic cap 1 secured to the shaft 2 and the latter being fixed in a housing 7 of non-magnetic material. The passage of magnetic powder particles 8 through the gap 9 between the ring 5 and cap 1 is restrained by the effect of the magnetic field due to the ring 5, which field is prevented from by-passing the gap 9 by the ring 6.
Patent GB-215437-A (GB)
Title: A method of renewing the filaments of thermionic valves employed in radio telegraphy and telephony
IPC: H01J9/50
Filed: 1923-02-07
Abstract: 215,437. Longe, J. M., and Evans, P. V. Castell-. Feb. 7, 1923. Vacuum tubes.-A method of renewing a thermionic filament consists in opening the bulb at the pip 4, supplying air under pressure through a rubber pipe applied at the aperture so as to turn outwards the edges of holes 7 pierced by a blowpipe flame, severing the ends of the filament supports 3 by inserting a tool through the holes and attaching to the shortened supports extension pieces 8 to which a new filament is secured either before or after placing the pieces in position on the supports. The extension pieces 8 consist of soft wire such as nickel formed at the end into two or more turns of a helix 9 by winding on a mandrel of the same diameter as the supports. The helices are slipped over the supports and pinched thereto. The filament may be punched' into the bent or split ends of the pieces 8.
Patent GB-311356-A (GB)
Title: Improvements in and relating to wireless receiving apparatus
IPC: H03F3/02
Filed: 1928-02-07
Abstract: 311,356. Oliver, F. Feb. 7, 1928. Thermionic detectors and amplifiers.-Wireless receiving apparatus, comprising two or more valves with iron-cored chokes as inter-valve couplings, is operated without a high-tension source. Fig. 2 shows the system applied to a four-valve wireless receiver, comprising a detector valve followed by three amplifying-stages. A choke-coil a is connected in the plate circuit of each valve between the plate f and the low-tension positive lead. Each plate is connected to the following grid j through a condenser c. The choke-coils a may be wound on separate iron cores, or on a common core b. A further condenser o may be connected between the plates of two of the valves. The Specification also describes a two-valve receiver with a single intervalve coupling (Fig. 1, not shown).
Patent GB-790342-A (GB)
Title: Improvements relating to brazing fins to tubes
IPC: F28F1/42
Filed: 1956-02-07
Abstract: 790,342. Tubular heat exchange elements. BROWN FINTUBE CO. Feb. 7, 1956 [Feb. 16, 1955], No. 3782/56. Class 64(3) [Also in Group XXII] A heat exchanger tube 10 is provided with spaced longitudinal or helical fin members 11 brazed to the external surface of the tube. Transverse or longitudinal fins Fig. 7 may in addition be brazed to the inner surface of the tube. Specification 789,774 is referred to.
Patent GB-161029-A (GB)
Title: Improvements in or connected with fluid-pressure meters and engines
IPC: G01F3/16
Filed: 1920-02-07
Abstract: 161,029. Macgill, W. A., and Macgill, C. D. Feb. 7, 1920. Combined fluid-actuated and mechanical gears; slide valves, cylindrical and piston. - Fluid-pressure engines and meters are provided with a reciprocating controlling- valve D, Figs. 1 and 2, having portions E, with which the piston F contacts near the end of its stroke to impart an initial movement to the valve in order to shut off completely the supply from ports A and to shut off wholly or in part the exhaust through ports B. The piston is caused to impart a supplementary movement to the valve either by the expansion of the acting fluid in the cylinder where such is an elastic fluid, or in the case of liquids, by the expansion of air contained in cham. bers C and compressed during the entrance of the liquid. The supplementary movement of the valve partly opens the supply ports, and the entering fluid, by its action on the parts E, imparts a final movement to the valve, so that the supply and exhaust ports are fully opened. The portions E reciprocate in annular extensions of the cylinder, which are connected by a pipe G. In a modification, the piston reciprocates on the trunk D<1>, Fig. 3, connecting valves D, and contacts with collars H on the trunk to produce the initial and supplementary movements of the valves.
Patent GB-1260503-A (GB)
Title: Message display system
IPC: H04L12/18
Filed: 1969-02-04
Abstract: 1,260,503. Matrix displays. STEWARTWARNER CORP. 4 Feb., 1969 [5 Feb., 1968], No. 3814/71. Divided out of 1,260,501. Heading G5C. The subject matter of this Specification is identical with that described in Specifications 1,260,501 and 1,260,502 namely a travelling message display system having a plurality of display elements but the claims are concerned with the provision in the system of a multistage buffer storage and timing means responsive to the rate of receipt of information signals for controlling the read out rate from the buffer storage to display element actuating means and the rate at which data is shifted through the buffer storage.
Patent GB-419411-A (GB)
Title: Improvements in embrodiery and like needles
IPC: D05C15/06
Filed: 1934-02-06
Abstract: 419,411. Embroidery needles. CLUCAS, E., 41, Corporation Street, Manchester. Feb. 6, 1934, No. 3820. [Class 112.] A hollow eye-pointed embroidery needle a is secured in a hollow cylindrical holder b. The stop collar d for determining the length of the loops is carried on a hollow member c fitting over the needle and having a screwthreaded part inside the handle. The collar is therefore adjustable along the needle for determining the length of the needle-loops by turning the handle, after the manner of a propelling pencil.
Patent GB-1418765-A (GB)
Title: Semiconductor devices
IPC: H01L23/482
Filed: 1973-01-25
Abstract: 1418765 Semiconductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 Jan 1973 [28 Jan 1972] 3836/73 Heading H1K In a semiconductor device, series resistors between a plurality of regions of one conductivity type and a common connection conductor are formed from a strip shaped resistive  zone, the region contacts and conductor contacts alternating in the axial direction of the resistive zone. In the transistor embodiment shown, emitter series resistors are formed from a zone 13 diffused into the collector 10, the connection conductor 33 being comb shaped with teeth 32 contacting zone 13. The emitters 12 have electrodes 16 which are combined in pairs to contact the zone 13 alternately with teeth 32, the parts of zone 13 between teeth 32 and electrodes 16 constituting the resistors. The device also includes a base zone 11 with conductors 14 interdigitated with electrodes 16. Instead of a diffused zone, zone 13 may be a metal strip, e.g. of titanium lying on an insulating layer on the collector, or may be of a metal forming a Schottky barrier with the collector. The body may be of silicon, and include an epitaxial layer forming the collector, the insulating material being of silicon oxide, the regions being formed by diffusion or ion implantation. The electrodes may be of aluminium. The invention is said to be applicable to diodes and thyristors.
Patent GB-1389819-A (GB)
Title: Shaping of plastics materials in cavities
IPC: B29C65/42
Filed: 1971-02-04
Abstract: 1389819 Jointing QUINTON HAZELL (HOLDINGS) Ltd 4 May 1972 [4 Feb 1971] 3978/71 Heading B3V [Also in Division F2] A method of joining together, by means of a separate insert of softenable plastics material, a plurality of members which are not softenable at the softening temperature of the plastics material, the members at least in part defining in combination a cavity having an entrance, comprises introducing into or presenting to the entrance of the cavity a solid plastic slug of size and shape not conforming to that of the cavity, applying directly to the slug simultaneous high frequency mechanical vibrational energy and pressure directed inwardly of the cavity to cause the slug to soften and take up the shape of the cavity either wholly or partially, and thereafter discontinuing the application of energy and pressure to allow the plastic material to set or harden. Various embodiments, e.g. securing inner bearing members to housings, securing cams to shafts, or securing plates together, in which the above method is used are shown in the Figures. During the securing of the plates together, the slug may be initially partially supported in a hole in a pilot member which is removed after the insert is formed.
Patent GB-552657-A (GB)
Title: Improvements in and relating to gaseous electric discharge lamps
IPC: H01J61/54
Filed: 1942-03-26
Abstract: 552,657. Thermal switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 26, 1942, No. 4004. Convention date, March 28, 1941. [Class 38 (v)] [Also in Group XL] In a discharge lamp with thermionic cathodes 11 which require preheating at starting a bimetal switch 15 is mounted inside the lamp the contacts 16, 19 being contained in a capillary tube 17 open to the discharge space. The bimetal 15, Fig. 3, of the switch is arranged in the form of a semi-circle around one cathode 11 with the diameter inclined at 40 degrees to the vertical through the contacts, the upper one of which moves without finding on its enclosing tubes. The switch is in a series circuit through the cathodes, a supply source and an inductance; when the cathodes are sufficiently heated the switch opens to cause a starting discharge. The cathode not near the bimetal switch has two associated anodes one connected to each end of the cathode; the cathode 11 has an associated coiled anode 14 at one end, the bimetal being connected to the other end. At this end in addition to the leads 20 from switch contact 19 and cathode 11, there is a third lead 23 also connected to the cathode used in the preliminary processing and then cut short. The filling is mercury with a starting gas at a few millimetres. In a modification the lead connecting the bimetal switch to the far cathode is housed in a ceramic or glass sheath within the envelope a similar sheath enclosing the lead to this cathode. The envelope may have a fluorescent coating.
Patent GB-1262843-A (GB)
Title: Process for the manufacture of anthraquinone compounds
IPC: C09B62/004
Filed: 1970-01-28
Abstract: 1,262,843. Anthraquinone dyestuffs. CIBAGEIGY A.G. 28 Jan., 1970 [28 Jan., 1969], No. 4121/70. Heading C4P. The invention comprises dyestuffs of the general formula wherein X is H or an acyl radical. X may be the acyl radical of a triazine, pyrimidine, quinoxaline- or benthiazole carbonylic acid which may be substituted or the radical of an optionally unsaturated halo-aliphatic carbonylic acid. They are prepared by acylation of the corresponding amino compound or by sulphonation, preferably using 5 to 15% oleum at 50-70 C., of the corresponding anthraquinone 2,3<SP>1</SP>-disulphuric acid containing the group -NHX where X is H or acyl and when X is H the product may then be acylated. A halotriazine may be further substituted before or after reaction with the amino compound and when the acylating agent is an α,#-dibromopropionyl halide hydrogen halide may be split off by reaction with alkali before or after sulphonation. The products dye cellulose, cotton, wool and mixed wool fabrics, silk, leather, polyamides and polyurethanes in blue and olive shades.
Patent GB-198308-A (GB)
Title: Improvements in printing inks
IPC: C09D11/10
Filed: 1923-02-13
Abstract: 198,308. Alchemic Gold Co., Inc., (Assignees of McElroy, W. J., and Clarke, J.). June 16, 1922, [Convention date]. Ink.-Metallic-pigment inks for use with heated dies &c. for stamping book covers, labels, &c.. and applicable also for ordinary printing, are made with a vehicle consisting of a synthetic resin binder, such as coumarone resin, dissolved in a neutral solvent, such as terpineol, or a mixture of terpineol and a small proportion of resin oil.
Patent GB-253171-A (GB)
Title: Improvements in and relating to carburetted air lamps
IPC: F23D3/00
Filed: 1925-04-06
Abstract: 253,171. Thomson, W., and Law, G. J. April 6, 1925. Carburetted-air lamps. - In a carburetted-air lamp of the type in which the air to be carburetted is drawn into a central tube in the body of the lamp and passes partly direct and partly through a hydrocarbon-container into a mixing chamber or tube below the burner, three perforated dished discs H<1>, H<2>, H<3> are mounted on a spindle M inside a mixing tube D, the top disc having straight perforations and the others, right- and left-hand curved slits respectively so as to cause a thorough mixing of the air and vapour when passing up the mixing tube towards the burner A, and the two upper discs may be given a partial rotation by means of an arm N to accelerate the mixing of the air and vapour at starting. The invention is described in connection with a carburetted-air lamp in which an air tube C is screwed into a hydrocarbon-container P and has soldered to its bottom a base cap E in which is rotatably mounted the mixing tube D to the top of which is soldered a sleeve B. The mixing-tube D together with the sleeve B may be given a partial rotation by means of an arm F attached to the top of the sleeve so as to control (1) the amount of fresh air passing from the open end of the sleeve B into the container P through shutters C<2>, B<1> in the air tube C and the sleeve B respectively, (2) the amount of fresh air passing from the space between the air tube C and the mixing tube D into the mixing tube through shutters E<1>, D<1> in the base cap E and the mixing tube D respectively, and (3) the amount of carburetted air passing from the container P into the mixing tube D through shutters E<2>, D<2> in the base cap E and the mixing tube D respectively.
Patent GB-571275-A (GB)
Title: Improvements in or relating to iron blue pigments
IPC: C09C1/26
Filed: 1943-03-16
Abstract: 571,275. Iron blue pigments. INTERCHEMICAL CORPORATION. March 16, 1943, No. 4276. Convention date, Feb. 23, 1942. [Class 95] An iron blue pigment is produced consisting of an intimate mixture of ferric-ferrocyanide particles and nickel ferrocyanide particles, the nickel compound preferably being present from 2-20 per cent. by weight. The admixed particles may have deposited therein small amounts of nickel in the form of a basic water-insoluble compound. This coating may be carried out by the use of a water-soluble nickel salt (e.g. chloride, sulphate, acetate) and a basic compound. Preferably, from 0.5-10 per cent. by weight of a non-volatile water-insoluble filmforming liquid such as mineral or fatty oils is deposited with the nickel coating, but such a deposit is not essential.
Patent GB-197060-A (GB)
Title: Soluble preparations of colloidal sulpharsenites
IPC: A61K47/42
Filed: 1922-02-14
Abstract: Colloidal mercury and silver sulpharsenites are obtained in neutral solution or in solid soluble form suitable for the treatment of syphilis, by reacting upon an alkali sulpharsenite with a mercury or silver compound in presence of a protalbinate or lysalbinate which acts as a protective colloid.  Mono-mercury sulpharsenite, As2S3HgS and tri - mercury sulpharsenite As2S33HgS are obtained by dissolving arsenic trioxide in sodium sulphide, adding hydrochloric acid, and pouring the mixture into a solution of sodium protalbinate and mercuric chloride, adding more hydrochloric acid, and evaporating to dryness, the proportions of sodium sulphide and mercuric chloride being different in the two cases.  Mono-silver sulpharsenite As2S3Ag2S is obtained by dissolving arsenic trioxide in sodium sulphide, adding sulphuric acid, and pouring the mixture into a solution of sodium protalbinate and silver nitrate, adding more sulphuric acid, filtering off the precipitate, and after washing, dissolving in dilute soda and finally evaporating to dryness at 100 DEG  C.
Patent GB-1188891-A (GB)
Title: Picolines
Inventor: CANE STANLEY
IPC: C07D213/10
Filed: 1968-01-27
Abstract: 1,188,891. Picolines. BP CHEMICALS (U.K.) Ltd. 17 Jan., 1969 [27 Jan., 1968], No. 4378/68. Heading C2C. α-Picoline and #-picoline are produced by reacting acetaldehyde and ammonia in the vapour phase at elevated temperature over a fluidized catalyst which is alumina or silicaalumina with at least 5% by weight of a modifier which is one of the metals zinc, cadmium, tin, lead, tungsten. nickel, cobalt, chromium, molybdenum, iron and copper or a compound thereof. The preferred modifiers are the fluorides and oxides of the specified metals especially cadmium fluoride, lead fluoride, cadmium oxide and zinc oxide. The reaction is preferably carried out at 300-550‹ C.
Patent GB-383614-A (GB)
Title: Improvements in toy and comic figures
IPC: A63H3/28
Filed: 1931-02-12
Abstract: 383,614. Toy figures ; sound-producing. MœLLER, H., 65, Humboldstrasse, Nuremberg, Germany. Feb. 12, 1931, No. 4474. Convention date, Jan. 12. Void [Published under Sect. 91 of the Acts]. [Class 132 (iii).] The operation of a sound-producing device in a toy figure simultaneously actuates articulated members thereof, for example, the eyes, ears, and mouth. The figure is stamped from sheet metal 21 which may be printed, sprayed or covered with plush 19 and has a sound producer 1 and sound guide 2 forming the trunk framework. When the plate 1 is manually depressed a bell-crank lever 4, pivoted at 6, is rocked, causing, through further levers 8, 9, 10 respectively, the lower jaw 12 to open about its pivot 11, a tongue 14 to be projected through the aperture thus formed, and ears 16 to be moved, the operating hand being hidden by a ruff 18. A further link 17 may move the eyes and eye-lashes. By allowing the links to have a certain amount of play they may be caused to function slowly or quickly and at different moments. It is stated that the various levers may be operated independently and their motion produced by compressed air. The sound guide 2 and the head 19 may each separately or both together be stamped from sheet metal and pinned together.
Patent GB-710205-A (GB)
Title: Improvements in or relating to carrier-wave telephone systems
IPC: H04J1/04
Filed: 1952-02-20
Abstract: 710,205. Multiplex systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 20, 1952 [Feb. 23, 1951], No. 4499/52. Class 40 (4) In a carrier multiplex system, the frequencies of carriers used for pilot signals are higher than the frequencies in the basic group of intelligence channels formed by the first stage of frequencytransposing modulation, lie between the upper and lower limits of the total band which comprises the frequencies of all the transposed intellgience channels transmitted from sending to receiving station, and do not fall within any of the bands occupied by the said transposed intelligence channels. As shown, twelve 0-4 kc./s. intelligence channels are formed into a basic group 1 by means of channel carriers having frequencies of 12, 16, ..., 56 kc./s. Group carrier frequencies of 300; 348, ..., 492 kc./s. are then used to form five groups. into a basic super-group 2, and sixteen such super-groups are arranged in a basic hypergroup (Fig. 1c) in such a way that the supergroup carriers fall in the centres of the gaps between the super-groups and so may be used for pilot signals. The super-group carries frequencies and other pilot carrier frequencier are all multiples of 288 kc./s., and all the carriers required are derived from a 144 kc./s. oscillator by means of frequency division and/or multiplication and/or mixing, Fig. 2 (not shown). If a 124 kc./s. COIF oscillator is to be used, this may be synchronized by mixing the 144 kc./s. oscillations with the 20 kc./s. channel carrier.
Patent GB-138938-A (GB)
Title: Improvements in refrigerating apparatus
IPC: F25B17/00
Filed: 1920-02-13
Abstract: 138,938. Delaygue, C. Feb. 13. 1920. Refrigerating, absorption machines for; coldaccumulators.-In ammonia apparatus working on the reversing system and comprising a generator-absorber 1 and a condenser-evaporator 13, Fig. 1, connected by a pipe 6, 6<1>, 6<11> for the return of the vapour during ubsorption, the vapour given off during generation is led into the inclined branch 6<1> through a vertical pipe b fitted with a ball valve 4. The pipe b is of smaller diameter than the pipe 6<1> and projects into the latter so as to form a lip d to direct any liquid in the pipe 6' away from the pipe b. The lower end a of the pipe 6 is perforated and is located near the wall of the vessel 1, so that the apparatus may be slightly tilted, for example to pass back into the vessel 1 any liquid collected in the pipe b, without allowing any substantial quantity of liquid to enter the pipe 6. The branch 6" of the connecting pipe leads into the top of the condenserevaporator 13, which is of annular form and enlarged at the top, as shown, to provide a large surface for evaporation. A regulating-valve 12 is provided on the branch 6<1>. In a modification, Fig. 2, for use with refrigerating chambers or wagons, the generator-absorber 1 is heated by steam or ccoled by water passing through a pipe 27, and the evaporator 51 is separate from the condenser 50. The apparatus may be portable and be connected temporarily to an evaporating- coil permanently fitted in a cooling-chamber 60, or in a casing containing an uncongealable liquid which will serve in place of ice as a cooling- medium. The condenser comprises a coil cooled by water in a surrounding vessel 52, and the evaporator may consist of a flat or a helical coil, a cylinder, or a gilled pipe. The evaporator is connected directly with the generator-absorber through a pipe 56 fitted with valves 54, 25, which are opened to permit the evaporator to be drained before disconnexion, and a valve 53 is provided between the condenser and the evaporator. The strong liqucr described in Specification 140,356 is employed in the generator.