baber/WOPTO huggingface dataset:
Patent GB-148770-A (GB)
Title: Apparatus for mechanically solving spherical triangles
IPC: G01C21/02
Filed: 1920-07-10
Abstract: 148,770. Mouren, L. J. L. Feb. 26, 1919, [Convention date]. Spherical-trigonometry calculators.-The principle on which the apparatus works is explained by the diagram in Fig. 4 in which, given the elements a, b, and C of the spherical triangle, a circle of centre O and radius O A = R is drawn and ares are set out as follows, Q O I being a diameter, Q A = I A<1> = a, Q B = b, Q C<1> = I C = C. It can be shown that if A B intersect Q I in K. and a line S S<1> through I be taken such that S I = S<1> I = ¢ R and S K = S<1> K<1> = 3/2 R and C K<1> cut the circle in M; then arc I M = A + B in the spherical triangle. Similarly, if the linkage K S S<1> K<1> be brought to the position H<1> T<1> T H where H is the intersection of A<1> B and Q I, and C<1> H<1> intersect the circle in N, then Q N = A - B in the spherical triangle. The apparatus is constructed as shown in Fig. 5, in which gear wheels corresponding to O A, O B carry pins 6, 5, respectively, for setting the angles A, B, and a similar wheel C carries a pin 7 for setting the angle C. Straight links 1 and 8 grooved on each side take studs 5, 6, K, K<1>, 9 and 7 on the gears. Link 1 thus gives A B of the diagram, Fig. 4; K slides in the groove in the link and in a straight slot in a wall perpendicular to the plane of the paper and forming the diameter Q O I of the diagram. A link S S<1> equal to radius R connects links K S = K<1> S<1> = 3/2 R, thus positioning the bar R to correspond with C M of the diagram. C being set as given for the spherical triangle gives the reading of stud 9 on the gear M as A + B. A similar construction above the central plane P0 gives stud 15 on a gear N corresponding to O N in the diagram, making N read A - B. The gears C, C' move equally and are geared to a shaft operated from a setting head with pointer, and differential gear is used to combine the movements of gears M and N and give direct reading of A and B for the spherical triangle. Solution of the triangle from data A, B, c is got by means of the supplemental triangle. In a simplified modification, a graduated plate is employed and corresponding positions of points H H<1>, and K K<1> marked similarly in pairs enable the mechanical linkage to be dispensed with, the calculation being performed by stretching a thread successively in positions A B reading K, taking K<1> by thread to C giving M and reading on the scale M/2 and so on.
Patent GB-454810-A (GB)
Title: Improvements in wheels and in the construction thereof
IPC: A63H17/26
Filed: 1935-07-20
Abstract: 454,810. Making wheels. CHANCE, J. R., and CHANCE & CO., Ltd., J. R., Cato Street North, Saltley, Birmingham. July 20, 1935, No. 20688. [Class 83 (ii)] [See also Group XXIV] Wheels, especially hand steering-wheels for toys, are made up of identical sheet metal pressings so as to be capable of being made by one set of press tools, and a core or liner 19 pressed or stamped out from flat metal of much greater thickness. The rim 12 is left hollow. The centre parts of the spokes and the hub are raised at 15 to accommodate the core.
Patent GB-145302-A (GB)
Title: Improvements in or relating to oil burners
IPC: F23D11/12
Filed: 1919-08-22
Abstract: 145,302. Cotera, F. Aug. 22, 1919. Spray burners. - An oil burner more particularly for use on locomotives, comprises four compartments 2 and 3 for oil and 4 and 5 for steam; these are employed in pairs, one pair 2 and 4 having a larger capacity than the other pair 3 and 5, so that when a smaller flame is required the pair having a smaller capacity is brought into use. The fuel conduit 16 leading to a by-pass 17 opening into compartment 3 is provided with a valve 18 having ports 19, 20 (port 19 being larger than port 20), which on rotation of the valve open in turn the passages 16 and 17 respectively and the steam conduit has a similar valve controlling the large and small inlets to compartments 4 and 5. The discharge openings 10 and 14 are independently controlled by slide valves 11 and 15 held to the burner by threaded members 12.
Patent GB-1066703-A (GB)
Title: Imitation cream composition
Inventor: DENT LIONEL JAMES
IPC: A23L9/20
Filed: 1965-05-17
Abstract: An imitation cream concentrate to be diluted with water for use, comprises, by weight, 40-70% of fat, the fat consisting of hardened or unhardened palm kernel oil and/or coconut oil, 20-50% of water, 10-40% of sugar, whole or separated milk powder, and/or a soluble starch derivative and up to 5% of at least three emulsifying or whipping agents.  The emulsifying agents specified include microcrystalline cellulose, methyl cellulose, methylethyl cellulose, ethylhydroxy ethyl cellulose, sodium caseinate, albumen, polyoxyethylene sorbitol monostearate, tristearate and oleate, propylene glycol monostearate, polyglyceryl monostearate, sorbitol palmitate and monostearate, monoglycerides of fatty and unsaturated fatty acids, and lecithin.  Other substances specified include sucrose, dextrose, sodium alginate, trisodium citrate, salt, butterfat, groundnut oil, soyabean oil, cottonseed oil, saccharin.
Patent GB-696223-A (GB)
Title: Improvements in or relating to bells
IPC: G10K1/064
Filed: 1950-08-22
Abstract: 696,223. Bells. GILLETT & JOHNSTON, Ltd., and COOMBES, C. H. Aug. 30, 1951 [Aug. 22, 1950], No. 20746/50. Class 13. In a bell, e.g. for use on police cars, the clapper 17 and its actuating mechanism including a rotary electric motor M are mounted within the bell 12 on a bracket 13 which also supports the bell. The clapper 17 is urged towards the bell by a spring ,26 and is actuated by a snail cam 27 driven by the motor M. The clapper is eccentrically mounted on a lever 18 to allow for adjustment.
Patent GB-1017936-A (GB)
Title: Improvements in and relating to methods of cleaning anode supports in point-contact diodes
IPC: H01L29/00
Filed: 1963-05-24
Abstract: Anode supports of a point-contact diode which consist of copper coated nickel-iron are cleaned electrolytically in a solution of ammonium carbonate or ammonium acetate to which dissolved oxygen may be added, by anodic action to remove the copper from selected areas, e.g. those which are to be located within the transistor envelope. Nickel and iron salts formed by attack on the base metal are removed from the supports by washing in a solution of potassium ferro- or ferri-cyanide. Reference is made to the prior use of ammonia or ammonium chloride solutions for the electrolytic treatment.
Patent GB-183852-A (GB)
Title: Improvements in or relating to two stroke cycle internal-combustion engines
IPC: F02B25/00
Filed: 1922-07-29
Abstract: 183,852. Babin, J. July 30, 1921, [Convention date]. Valves; regulating.-In a two-stroke engine in which highly compressed air is admitted, with liquid or gaseous fuel, to the cylinder and burns at constant pressure during the power stroke, the exhaust gases being compressed on the return stroke, the air charge is divided, one portion entering the cylinder 21 through a passage 24 and through an annular port 25 controlled by an annular valve 26, and the other portion entering through a passage 27 and a mechanically-actuated valve 30. The engine may be regulated by varying the period of admission of fuel and air and the quantity of each used.
Patent GB-325459-A (GB)
Title: Improvements in sliding clasp fasteners
IPC: A44B19/32
Filed: 1929-07-08
Abstract: 325,459. Waschiczeck, F., and Schubert, O. and Schubert, R., (trading as Schubert & Sohn, 0.). July 8, 1929. Sliding-clasp fasteners.- The clasp elements 3 are embedded in rubber or like strips 2, and the rubber fills the gaps between the fastener elements.
Patent GB-409646-A (GB)
Title: Improvements in agricultural implements
IPC: A01B63/24
Filed: 1932-07-25
Abstract: 409,646. Implements for working land. CHARRUES MELOTTE SOC. ANON., Gembloux, Belgium. July 25, 1932, No. 20938. Void [Abridged as open to inspection under Sect. 91 of the Acts,Aug.23, 1932]. [Class 6 (i).] In a hoe comprising one or more tools each mounted on a tool-carrier provided with a wheel engaging the ground, a coulter is provided in front of each tool in a vertical plane. The tool-carrier 3 may consist of a jointed parallelogram provided with a spring 3<1>, the wheel 6 being mounted in a fork 5 on the toolcarrier, and the hoeing-tool 2 being adjustably secured by a clamping-screw 3<11>. The coulter may consist of a disc 7 on the axle of the wheel 6, or of a knife blade mounted on the fork 5 in such a manner that it may be adjusted as to height and inclination, being secured by pins passing through holes. The coulter 7<11> shown in Fig. 3 is connected to the tool 2 by a rigid member 10 and is provided with a slot 11 to allow of being adjustably secured by a screw 12.
Patent GB-275423-A (GB)
Title: Improvements in aircraft
IPC: B64C39/00
Filed: 1926-08-25
Abstract: 275,423. Gaddis, F. Aug. 25, 1926. Machines supported by rotary propellers; propelling; steering and balancing.-An aircraft is supported by two rotary propellers comprising blades 16 capable of sliding through two longitudinal shafts 17 and having their edges guided by pairs of eccentric guides 14 supported above the machine frame. The guides 14 are so shaped that rollers on the edges of the blades are always in contact therewith. Similar propellers are mounted on transverse shafts 24 on each side of the aircraft body the blades 23 of which have guides 20 rotarily mounted on the body and on supports 21. Quadrants 41 on each of the guides 20 are engaged by pinions 42 on two manuallycontrolled transverse shafts 43 to enable the direction of thrust of these propellers to be varied and so obtain forward propulsion. The shafts 17 are rotated in opposite directions by chain gear 31 from an engine shaft 28 and a counter shaft 28' geared thereto. The rear transverse shaft 24 is driven from the shaft 28 through a clutch and bevel gear and the forward shaft 24 is geared by a chain and sprockets to the rear shaft. The two control shafts 43 also are geared together by chain and sprocket gear. Shock absorbers, applications of.-The body of the machine is boat-shaped and has four spring buffers 11.
Patent GB-949198-A (GB)
Title: An electric current converter with interphase transformer
IPC: H02M7/06
Filed: 1960-06-15
Abstract: 949,198. Converting. LICENTIA PATENTVERWALTUNGS-G.m.b.H. June 15, 1960 [June 15, 1959], No. 21013/60. Heading H2F. A current converter comprises two parallel partial converters interconnected by an interphase transformer whose windings are electrically separated, i.e. not parts of a tapped choke. As shown a converter comprises a three-phase transformer having a primary winding 1 and two secondary windings the ends of the first secondary winding being connected to the cathodes of rectifying elements 3a whose common anode connection forms the negative D.C. terminal, and the ends of the second secondary winding being connected to the anodes of elements 3b whose common cathode connection forms the positive terminal. The star point of the first secondary winding is connected to this positive terminal through a first winding of the interphase transformer and the star point of the second secondary winding is connected to the negative terminal through a second winding. The windings of the interphase transformer may be single turns passing through a cylindrical magnetic core which may be in two parts. A twelve-pulse embodiment in which the partial converters are polyphase bridge connections of rectifiers connected to star and delta secondary windings respectively is disclosed (Fig. 7, not shown). The rectifying elements may be semi-conductor elements, switch contacts or single anode Hg arc valves (not multi-anode valves). The connections may be altered to give a polyphase bridge fed by two parallel connected transformer secondary wingings (Fig. 3b, not shown).
Patent GB-170556-A (GB)
Title: Improvements in electrical circuit-breakers
IPC: H01H1/54
Filed: 1921-08-08
Abstract: 170,556. Metropolitan - Vickers Electrical Co., Ltd., (Assignees of Aalborg, C.). Oct. 18, 1920, [Convention date]. High-potential switches; mechanical switches with contacts reinforced electromagnetically; contacts; sparking, preventing, and arc-rupturing devices.-High tension switches are provided with main brush contacts 8, 9 secured to conductors 3, 4 and adapted to be bridged by a movable contact bar 5 secured by bolts 6 to an operating rod 7. Shunt contacts are provided, the fixed contacts 10, 11 being secured to the terminals 12, 13 and the movable contacts 14, 15 are attached by bolts 16, 17 to brackets 18, 19 pivoted on pins 20, 21 within the bridging member 5. Springs 22, 23 are connected between the inner ends of the brackets 18, 19 and fixed pins 24, 25, and a flexible strip connection 26 joins the contacts 14, 15. The interaction between the magnetic field set up in the zone between the conductors 3, 4 and the currents carried by the switch tends to distort or spread apart the contact members, and consequently presses the brushes 8, 9 more firmly into engagement with the bar 5. A similar interaction tends to force the shunt contacts apart, but as the field also acts upon a greater area of the flexible shunt strip 26 resting on the inner ends of the brackets 18, 19, the resultant electromagnetic forces will assist the springs 22, 23 to keep the shunt contacts together until the main contacts have moved apart a distance sufficient to prevent sparking. Stops 27, 28 limit the movement of the brackets 18, 19.
Patent GB-1325848-A (GB)
Title: Method of electrically welding a capacitor electrode to a capacitor housing and a capacitor thus manufactured
IPC: H01G13/00
Filed: 1972-05-05
Abstract: 1325848 Welding by pressure PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 May 1972 [8 May 1971] 21024/72 Heading B3R [Also in Division H1] Metal strip 17 electrically connected to or integral with one electrode of capacitor roll 15 is clamped between pin 7 supporting roll 15 and the bottom of metal housing 1 and is welded to the bottom of housing 1 by passing current through pin 7, strip 17 and the housing by means of welding electrodes 19, 21, the roll being then displaced slightly from the bottom and secured within the housing. To prevent welding between pin 7 and strip 17, at least one of the abutting surfaces of strip 17 and the housing are profiled to provide a lower contact area and so a higher current density than between the other abutting surfaces, e.g. the housing bottom may have a spherical raised portion (Fig. 3, not shown). The capacitor may be a wet, dry, or solid electrolytic capacitor wherein an aluminium cathode is connected to an aluminium housing. A circumferential indentation formed below composite sealing disc 9, 11 fixes the roll and pin in place (Fig. 2, not shown).
Patent GB-661823-A (GB)
Title: Cooking vessel with cast-on reinforcing plate, especially for use on an electric range
IPC: A47J36/02
Filed: 1949-08-12
Abstract: 661,823. Saucepans &c. for electric hot-plates &c. GRIGAR, O., and STILLER, P. Aug. 12, 1949 [Aug. 17, 1948; July 26, 1949], Nos. 21041/49 and 21042/49. Class 66. A saucepan &c. 1, e.g. drawn from sheet-iron and enamelled over the whole of the inside and most of the way down the outside walls, has a base-plate 3 vertically flanged at 4, made and secured by casting aluminium or copper &c. on the unenamelled outer part of the saucepan, the walls being grooved at 5 to anchor the baseplate in place. In a modification, the groove is omitted, and a foot-ring spot-welded on, to provide a gore-section, circular pocket to receive sand &c. to act as cushioning when the base-plate shrinks on cooling after being cast on.
Patent GB-995179-A (GB)
Title: Improvements in or relating to typewriters
IPC: B41J3/36
Filed: 1963-05-27
Abstract: 995,179. Typewriters. B.S.D.C. (ENGINEERS) Ltd., and E. C. BRACE. May 19, 1964 [May 27, 1963], No. 21042/63. Heading B6F. Type-lever machines; aligning for impression. -In a typewriter, particularly a portable typewriter, each type-head 28 and the type guide 16 have means which engage immediately before the type face makes impact with the platen 12 so as to cause the type face to strike the platen perpendicularly thereto, and the pivots 20 of the type levers 19 are tangents to an arc lying in a horizontal plane 27 with its centre 26 vertically below the place of interengagement of the means on the type head and guide. The interengaging means may comprise a projection 33, Fig. 3, on the type-head and a similarly-shaped hole 35, Fig. 2, in the guide 16, or vice versa, or in place of the hole 35, a pair of small spring-pressed pivoted arms 37, Fig. 12 (not shown), with a V-gap between them may be mounted on the guide 16. The key levers 21 are mounted on pivots 22 and are connected to their type-levers 19 by links 23, and each key lever 21, link 23 and type lever 19 assembly is disposed in a slot 24 in the key-bar quadrant 15. Type-lever construction; types, securing on carriers.-Each type head 28 has suitably angled shanks 36, Fig. 6, for connection to its type-lever 19. Platens.-The platen 12 may be fixed or rotatable, or may be a bar which can have an arcuate section.
Patent GB-1005820-A (GB)
Title: Improvements in guided missiles
Inventor: BOYDELL TIMOTHY GORDON BEVON
IPC: F42B15/01
Filed: 1958-07-01
Abstract: 1,005,820. Photo-electric direction finders. DE HAVILLAND AIRCRAFT CO. June 24, 1959 [July 1, 1958], No. 21122/58. Heading H4D. The infra-red sensing system of a guided missile is mounted in a transparent nose-piece and is protected from spurious target radiations, such as reflections of the sun from the inner surfaces of the nose-piece, by a screen in the nosepiece. Fig. 5 shows, exploded, a screen for a nose-piece in the shape of an octagonal pyramid. It consists of two main vanes 8, 9 at rightangles, slotted into the rear of which are two subsidiary vanes 12, 13 at 45 degrees to the main vanes. Surrounding vanes 12, 13 and the rear parts of vanes 8, 9 is an octagonal shroud 16 which tapers toward the rear. The whole screen is located in the nose-piece by a wire support whose arms 20 engage notches in the shroud. Fig. 2 shows the screen in place in a nose-piece containing a sensing system 1 mounted on gimbals. The nose-piece is built up from eight flat transparent segments 6. The Figure also shows how the screen, which is blackened, cuts off internal reflections in the nose-piece.
Patent GB-1087611-A (GB)
Title: Apparatus for stimulating the flow of gravity-fed granular material
Inventor: SILVEY WILLIAM JAMES
IPC: B65D88/70
Filed: 1963-05-27
Abstract: 1,087,611. Agitating coal in hoppers. SENIOR ECONOMISERS Ltd. Aug. 19,1964 [May 27, 1963], No. 21139/63. Heading B8A. Gravity-fed coal is agitated by a reciprocating piston g which introduces agitating air at i. Thus piston g works within casing a in bearings d and t mounted therein, and is operated by compressed air introduced at y so that the piston head h reciprocates within the hopper and at the same time discharges air at i when the piston is within the hopper. Additionally the piston is given a rotary movement. This is effected by sleeve o which is equipped with pins r mounted therein by means of bearings q and engaging slots 8 formed spirally in the part k of piston g. The sleeve o co-operates with spring m. Operation.-As the piston moves leftwards under the pressure of air introduced at y, the sleeve o remains free but as the piston moves further leftwards the spring m tightens its grip upon sleeve o so that the sleeve becomes fixed and the piston is compelled to rotate as it goes further forward. In this way the air jet at i is directed into the coal at different angles and facilitates the flow thereof.
Patent GB-250092-A (GB)
Title: Safety and signalling arrangement for trains
IPC: B61L3/10
Filed: 1925-08-24
Abstract: 250,092. Christensen, N. C., and Christiansen, H. H. A. Aug. 24, 1925. Electrical systems, automatic; track apparatus actuating train contacts and actuating signals on trains. - When one train approaches another standing at a station, a warning signal is given on both trains by means of train-operated track contacts arranged in pairs and serving as both circuit closers and conductors co-operating with current collectors on the train, the standing train operating one pair to prepare both alarm circuits which are closed by the approaching train operating another pair. The circuits on the trains are in parallel. A hand-operated switch (not shown) may be provided at the station, whereby a signal may be given to an approaching train when no train is standing at the station. Each pair of contact devices comprises fixed spring-mounted contact bars such as 2, 4, Fig. 2, and movable co-operating contacts 1, 3 carried by pivoted arms 17 which pass below the track rails 13, their inner ends carrying conducting treadles 18 depressed by corresponding rollers 19 on the train. The train-carried alarm devices (not shown) are connected between the rollers 19. The contacts 1 - - 4, Fig. 1, are disposed at the station, and similar contacts 5 - - 8 and 9 - - 12 are placed at a distance from the station. Bars 6, 2, 10 are connected to one another and the movable contact 1 is connected to one pole of a battery 27. The other pole of the battery is connected to bars 8, 12 which are both connected to bar 4. The standing train closes contacts 1, 2 and 3, 4. A train approaching from the left closes contacts 5 - - 8. Parallel circuits are thus closed over the alarm devices. A train approaching from the right similarly operates contacts 9 - - 12.
Patent GB-1406153-A (GB)
Title: Continuous process for refining sulphide ores
IPC: C22B5/08
Filed: 1973-05-04
Abstract: 1406153 Refining sulphide ores MITSUBISHI KINZOKU K K 4 May 1973 [4 May 1972] 21266/73 Heading C7D Metal sulphide ore (e.g. copper, nickel or cobalt ore) is refined to produce crude metal by (a) changing into a smelting furnace 1 together with air, flux (e.g. silicic ore) and fuel to produce a melt comprising a matte and a slag and adding thereto a blister furnace slag from step c, (b) feeding the melt from the smelting furnace to a separator 2 so as to separate the matte and the slag and to discharge them separately therefrom and (c) changing the matte together with flux (e.g. lime) and air into a blister furnace 3 to produce a white metal and/or a crude metal and a blister furnace slag which is recycled to step a, the white metal where formed being subjected to a further refining step (e.g. electrolysis, reduction, flatution or the use of a second blister furnace) to produce crude metal. The raw material may be fed continuously in roasted form to the smelting furnace and the residence quantities of matte, slag, white metal and crude metal in the various stages maintained constant by equilibrating the rate of transfer of the melt between the various process steps (e.g. by the use of overflow weirs and an adjustable damper 9) and the rate of feeding of flux, air and optionally coolant e.g. cold scrap to the blister furnace. A reducing agent e.g. coke or pyrites may be added to assist separation of the matte and slag in separator 2 and the recycling of the blister furnace slag to the smelting furnace may be achieved by means of a bubble pump, bucket conveyer, electromagnetic means or gravitational means in which the matte from separator 2 is transferred to blister furnace 3 by forced means. The exhaust gases from 1 and 3 and separator 2 may be collected and utilized in sulphuric acid manufacture.