baber/WOPTO huggingface dataset:
Patent GB-376831-A (GB)
Title: Improvements in illumination appliances
IPC: F21V5/00
Filed: 1931-04-17
Abstract: 376,831. Prismatic reflectors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and PEIRCE, M. W., of General Electric Co., Wembley, Middlesex. April 17, 1931, No. 11473. [Class 75 (ii).] In a reflector comprising a plurality of prisms in close juxtaposition and adapted to reflect light outwardly, the reflecting face of one or more of the prisms consists of two or more parts inclined to each other at a small angle. In the form shown in the Figure, the refracting faces A<2> B<1>, A<3> B<2> are made parallel to the incident rays so that all such rays fall directly on the reflecting surfaces A<1> C<1> B<1>, A<2> C<2> B<2> which are so formed that the rays reflected by one prism are not intercepted by the next prism.
Patent GB-973874-A (GB)
Title: Process for the drying of solid products mixed with or dissolved in liquid
Inventor: KOLSCH HERBERT
IPC: F26B17/10
Filed: 1961-03-29
Abstract: 973,874. Drying processes. CHEMISCHE WERKE BUNA VEB. March 29, 1961, No. 11488/61. Heading F4G. A solid material or product mixed with or dissolved in a liquid is dried by mixing it with steam which acts as a propellant for conveying the material through a zone whereat the steam is superheated to a temperature sufficient to evaporate the liquid from the solid. Material is fed from a worm to a chamber 2 where steam is fed through a pipe 8 to carry the material through a superheater 4 to a cyclone 5 and a filter 6 where the separated solid is extracted. If the material is moist with a liquid other than water, vapour of that liquid can be used in the same way as the steam.
Patent GB-477133-A (GB)
Title: Arrangement for placing the parts of a lock in position
IPC: E05B17/00
Filed: 1937-04-22
Abstract: 477,133. Making locks. HALLER, P. April 22, 1937, No. 11530. Convention date, April 22, 1936. [Classes 83 (ii) and 83 (iii)] [Also in Group XXV] A device to facilitate filing the pins of a revolving barrel lock to conform to the profile of a key 3 consists of a holder 8 made to grip the barrel 2. The key 3 is inserted in barrel 2, and roughly cut pin 5 is placed in position and filed down flush with the barrel. Fig. 3 shows a method of filing the casing pins to length and consists of a block 10 in which are drilled holes equal in length to the finished length of pistons 5 and 6. The finished pin 5 is placed in the hole and roughly cut pin 6 is placed above it and filed flush with the surface.
Patent GB-827608-A (GB)
Title: Improvements in variable speed power transmission mechanisms
IPC: F16H61/662
Filed: 1956-04-16
Abstract: 827,608. Variable-speed gear. KRAUS, C. E. April 16, 1956 [Jan. 6, 1956], No. 11533/56. Class 80 (2). A friction gear variable automatically with the load and having no other control, comprises pairs of input and output toric races 11, 12 and 16, 17, each tracked by three sets of rollers, each set consisting of three substantially coaxial rollers 23, 24, 25 which, for ratio shift, are precessed about a common fixed pivot-pin 26 lying on one side of all the rollers, by the load acting at the contact points of the rollers to turn them individually and independently about parallel axes formed by pins 38, 42, 45b, arranged in a common plane at right-angles to the shift axis 26, and each lying in a plane axially spaced from that of the contact-points of the corresponding roller, whereby drive torque produces the processional turning moment of the roller about its pin. Each pin 38 &c. connects a roller-supporting bearing-ring 39, 43, 46 to a bracket 36, 41, 45, individually pivoted on the pin 26. As shown in Fig. 2, anticlockwise movement of each roller 23 about its pin 38 in response to increase in load, is resisted by a helical compression spring 57 acting downwards on a rod 50, slidable in an offset bracket 52 and pressing on the bearing ring 39 of the corresponding roller 23. Load reduction permits the springs 57 to expand and cause clockwise pivoting of the rollers. The pivotal movement causes the rollers to precess in the appropriate direction about the common pivotal axis 26 to a new ratio position in which the springs 57 again balance the load. In Figs. 10-16, not shown, the load-responsive springs 57 are replaced by pairs of pistons acting oppositely on each roller support ring and backed by fluid or rubber trapped in a cylinder block. The input races 11, 12 are urged apart by a sprag 13 or by diaphragm springs, and the output shaft 21 carrying the output races 16, 17, may, for automotive use, drive the load 20 through a planetary reverse gear 22. Specification 763,514 is referred to.
Patent GB-774042-A (GB)
Title: Ceramic vacuum tube
Inventor: SORG HAROLD EDWIN
IPC: H01J21/36
Filed: 1955-04-21
Abstract: 774,042. Thermionic valves. EITELMcCULLOUGH, Inc. April 21, 1955, No. 11553/55. Class 39(1). A valve, particularly a double-valve consists of two ceramic end discs 2 and a ceramic cylindrical wall 4 carrying a two-sided cathode 13 supported by radial leads 16. The end walls are metallized to form anodes 8 and the ceramic parts are joined together by brazed metallized joints which act as leads to external contact rings 11. The grids 24 are mounted in rings 27 gripped in inner recesses between cylinder 4 and additional cylinders 26 joined by metallized joints 30. The grids may be omitted for a double diode or additional pairs may be added for double-tetrodes or -pentodes. The cathode consists of two cups welded together over three pins 16 but insulated from a fourth pin which acts as free lead to the heater. In a modification to allow for heat expansion and easier assembly, tangential straps 23, Fig. 4, are interposed between the cathode stubs 22 and contact pins 16.
Patent GB-400258-A (GB)
Title: A powder for use in melting metals especially metals used in typecasting machines and stereotyping foundries
IPC: B41B11/52
Filed: 1932-04-22
Abstract: A powder for refining lead, tin, or alloys of lead and tin with or without antimony comprises 37 parts pure finely powdered ammonium chloride, 14 parts common salt, 11 parts calcium chloride, 25 parts carbon, and 14 parts pure naphthalene, the parts being by volume. The carbon is preferably inert animal carbon or other inert carbon such as lampblack or gas carbon black.  The powder is mixed with the metal at a temperature between 300-750 DEG  F. and is particularly for refining alloys used in type-casting machines and stereotyping foundries comprising approximately 4-6 per cent tin, 12-13 per cent antimony, and 80-85 per cent lead.
Patent GB-920499-A (GB)
Title: Improved humidity-responsive device
IPC: G01N27/12
Filed: 1959-04-06
Abstract: 920,499. Measuring electrically. MINNEAPOLIS-HONEYWELL REGULATOR CO. April 6, 1959 [April 7, 1958], No. 11586/59. Class 40 (1). A resistance hygrometer comprises a ceramic base of aluminium silicate on which are spaced electrodes and which are impregnated with lithium fluoride or lithium carbonate. As described, the ceramic raw material, kaolin or kaolinite, is ball-milled with methocel and water, dried at about 110 C., pulverized, pressed into tiles and fired at about 1200 C. Blanks are cut to size and conductive silver electrodes provided on the surface by silk screening with silver paste. Next the blanks are cleaned by successive immersions in distilled water. The blank is impregnated with lithium fluoride or carbonate by immersing in a boiling solution of the appropriate salt for about 5 minutes or by repeated dipping in a saturated solution of the salt and is then aged for 1 month at room temperature and 60% relative humidity for lithium fluoride and 95% for lithium carbonate.
Patent GB-1306148-A (GB)
IPC: H02P9/38
Filed: 1970-03-11
Abstract: 1306148 Automatic voltage or power factor control FUJI DENKI SEIZO KK 11 March 1970 [13 March 1969] 11646/70 Heading G3R [Also in Division H2] The field winding 6 of a synchronous generator 2 is supplied with a combined voltage derived from voltage and current transformers 3, 4 respectively sensing the terminal voltage and load current of the generator, the combined voltage being rectified by a bridge containing thyristors 5 which are normally controlled to maintain the generator voltage, reactive power or power factor at a predetermined value but which are made fully conductive in the event of a short circuit on the bus-bars 1 to ensure operation of the protection system and synchronization of the generator after recovery. Normally the firing signals for the thyristors 5 are derived from a regulator 10 and a controller 11 through the contacts 16a of a relay 16 responsive to the voltage of the bus-bars 1, the regulator 10 producing an error signal dependent on the deviation of the voltage, reactive power or power factor from the predetermined value. If the voltage of bus-bars 1 falls below a certain value corresponding to a condition wherein the members 10, 11 would cease to produce firing signals for the thyristors 5, the relay contacts 16a change over to provide such signals from signal generators 15 which are energized by the combined voltage through a transformer 14. Each generator 15 produces a rectangular waveform of time duration substantially equal to that of each half cycle of the output voltage of transformer 14, application of the waveform to a pulse transformer 5a producing a firing signal substantially coincident with the start of each half cycle, Fig.3 (not shown). The combined voltage for energizing the signal generators may be obtained from instrument transformers 7, 8 supplying an error detector 9, Fig. 4 (not shown). Alternatively the generators may be energized by the voltage derived from the current transformer  4.
Patent GB-371163-A (GB)
Title: A process for dyeing or colouring celluloid or shaped articles thereof
IPC: C08K5/00
Filed: 1931-04-20
Abstract: Unspecified types of dyes, dyeing with; azo dyes.--Celluloid (i.e. nitrocellulose plastics) and shaped articles thereof are dyed or coloured by treatment with a fine aqueous dispersion of a dyestuff which is insoluble or sparingly soluble in water such as is used for dyeing cellulose acetate.  Specified dyestuffs are (a) nitramines such as nitranilines, nitronaphthylamines, and nitrodiphenylamines, e.g. 2 : 4-dinitro-4<1>-oxydiphenylamine; (b) azo dyes such as 3 - methyl - 6 - oxy - 4<1> - acetylaminoazobenzene, 3-methyl-6 - oxy - 4<1> - methoxyazobenzene, aminoazobenzene, aminoazotoluene, 2 : 5-dichloro-4<1>-aminoazobenzene, 4-nitro-4<1>-aminoazobenzene, 4-nitro-2<1>-methyl-5<1> - methoxy - 4<1>-aminoazobenzene, 4-nitro-2<1> : 5<1>-dimethoxy-4<1>-aminoazobenzene, 2-methoxy-4-nitro-4<1>-diethylaminoazobenzene, and the products obtained by coupling diazobenzene with 1-phenyl-3-methyl-5-pyrazolone, 1-(2<1>-chloro) phenyl-3-methyl-5-pyrazolone, 2 : 4-dioxyquinoline or methylketol or by coupling diazotized 2-nitro-4-chloraniline or 3-nitro-4-aminotoluene with 3-methyl-5-pyrazolone; (c) indophenols such as those obtainable by simultaneous oxidation of 2 : 6-dichloro-4-aminophenol and diethylaniline or dimethylaniline; (d) aminoanthraquinones such as the 1-methyl-2-amino-, 1-amino-4-oxy-, 1 - amino - 4 - methoxy-, 1 : 4-diamino-, 1 : 4 : 5 : 8-tetramino-, 1 : 4-di (oxyethylamino)-5 : 8-dioxy-, 1 - amino - 4 - phenylamino- and 1 - methylamine - 4 - phenylamino-derivatives of anthraquinone.  In an example celluloid articles such as buttons, buckles &c. to be coloured are subjected to a preliminary purification by treatment in a bath of dilute ammonia solution at about 40 DEG C. and are then coloured by introduction into a bath at 45 DEG  C. containing an aqueous solution of Marseilles soap in which the dyestuff aniline --> 1-(2<1>-chloro) phenyl-3-methyl-5-pyrazolone is emulsified, raising the temperature to 60-70 DEG  C., maintaining at this temperature for \ba1/2\be hour, rinsing and drying, e.g. by rubbing with dry soft sawdust.
Patent GB-1171746-A (GB)
Title: Device for Adjusting the Setting of the Price per Unit of Weight in a Weighing Machine having a Follow-up Device
IPC: G01G19/41
Filed: 1968-03-11
Abstract: 1,171,746. Weighing apparatus. W. KRAUT [trading as BIZERBA-WERKE WILHELM KRAUT K.G.]. March 11, 1968 [March 30, 1967], No. 11732/68. Heading G1W. A weighing machine is provided with a device which is for adjusting price per unit weight settings and which comprises separate setting levers for coarse and fine values of price per unit weight, the setting levers acting additively on a common feeler 24 in a follow-up device 15 of the machine. As shown, a setting lever 46 associated with a coarse price per unit weight scale 45 is mounted on a slidable member 48 which when the lever 46 is moved to a selected digit on the scale 45 is adjusted along a toothed bar 47 until a roller 49 on the member 48 engages with a notch on the bar corresponding to the digit. The member 48 is linked by rope drives 51, 43 and a forked member 42 carrying the feeler 24 to a slide 23 which is positioned, in accordance with the movement of the member 48, along a bar 16 of the follow-up device 15, a catch device 28 being provided which allows the slide 23 to be moved along the bar 16 only when the follow-up device 15 is in its lowest position. Adjacent to the coarse scale 45 is arranged a fine price per unit weight scale 53 having an associated setting lever 54 and a slidable member 56 which is provided with a roller 39, the roller 39 bearing on an inclined plane 38 forming part of a slidable carriage 33 carrying the forked member 42. On setting the lever 54 suitably on the scale 53 the consequential movement of the member 56 causes the carriage 33 through the roller 39 and plane 38 to be moved horizontally on support rollers 34, 35, 36 so as to cause horizontal movement of the slide 23 on the bar 16. With the follow-up device 15 in its lowest position and the levers 46, 54 suitably set on the scales 45, 53 a load is placed on a scale pan (6, Fig. 1, not shown) at one end of a pivotally supported beam 1 which deflects to a position indicative of the load. The beam 1 is held by a clamping device 58 in its deflected position and the follow-up device 15 is then allowed to move vertically upwardly by a spring 59 until the free end of the feeler 24 engages the beam 1, the movement of the follow-up device 15 causing movement of a scale 21 which directly indicates the price value of the load against a reading mark 22. Optical means may be provided for reading the price value of the load.
Patent GB-1375355-A (GB)
Inventor: ARITA SHIGERU
IPC: H01L27/112
Filed: 1973-03-13
Abstract: 1375355 Semi-conductor devices MATSUSHITA ELECTRONICS CORP 13 March 1973 [14 March 1972] 11901/73 Heading H1K In a method of manufacturing a series-gate Si MOS integrated circuit having a plurality of gate electrode strips 7, 8, 9, 10 each of which has associated therewith a plurality of pairs of source and drain regions diffused using the gate electrode arrangement as a mask, at least one pair of source and drain regions 13, 14 is interconnected by a previously provided diffused region 28 of the same conductivity type as the regions 13, 14. The gate electrode 3 may be of Mo or polycrystalline Si.
Patent GB-238295-A (GB)
Title: Improvements in liquid coolers or evaporators used for refrigerating purposes
IPC: F25B39/02
Filed: 1924-05-14
Abstract: 238,295. Chew, L., and Jennings, W. F. May 14, 1924. Refrigerating, compression machines and processes for. - In a liquid cooler or evaporator for refrigerating purposes comprising a battery of pipes enclosing tubes through which brine or other liquid to be cooled passes, the pipes are inclined to the horizontal, the ammonia or other refrigerant is admitted at the base of the elevated end of the battery, and the upper parts of both ends of the battery are connected to a horizontal receiver or gas-liberating chamber, so that the ebullition of the refrigerant causes it to circulate continuously and rapidly. The pipes a are connected to top and bottom headers b, c provided with conduits d, and condensed refrigerant is admitted through an expansion valve e and pipe f. The conduits d are connected to the horizontal receiver g by pipes h, i and a stop valve j. The receiver g may be provided with a level-indicating glass k. The liquid to be cooled passes through tubes n within the pipes a in a zig-zag course from the inlet o<1> at the top to the outlet p<1> at the bottom, chamber 3, 5, 7, 9 being formed in cover plates o, p to connect the ends of adjacent sets of tubes n. There may be one or more tubes n in each pipe a, but preferably seven. The gas or vapour from the chamber g may pass to the compressor through a tubular chamber t containing a coil s through which the refrigerant passes from the condenser to the valve e. By this means the gas is dried and the refrigerant cooled.
Patent GB-710540-A (GB)
Title: Improvements in or relating to cylinder-moulds of paper on board making machines or the like
IPC: D21F1/60
Filed: 1952-05-12
Abstract: 710,540. Cylinder-moulds of paper-making machines..DORRIES AKT.-GES., O. VORM. MASCHINEN-FABRIK BANNING & SEYBOLD. May 12, 1952 [May 11, 1951], No. 12000/52. Class 96 The shell of a cylinder mould 1, Figs. 3 and 4, of a paper-making machine is mounted on end-spiders, and is drilled at 19 with rows of holes which are widened at their outer portions, as by counter. sinking to an oval form tapering to the narrower inner portions, the spacing (centre to centre) of the holes in any row being less than the widths of the mouths of the holes measured along the row, and the spacing between the centre-lines of adjacent rows being greater than the widths of the mouths of the holes measured circumferentially, so that ridges 23 are formed. Holes of adjacent rows may be staggered. A three-cylinder machine is described, the zone of each shell not immersed in, or covered by pulp being blocked-off by a coverbox.
Patent GB-149441-A (GB)
Title: Improvements in housing and to planning methods therefor
IPC: E04H1/02
Filed: 1919-05-13
Abstract: 149,441. Sanders, W. E. May 13, 1919. Dwellings, arrangement of.-The houses on an estate are arranged in isolated centralized groups or sets, the houses a in each group radiating so as to form geometrical patterns as shown, and the groups are disposed so as to provide open views in nearly all directions. Private ways or approaches e, f lead to the groups from a public or general road g.
Patent GB-1285674-A (GB)
Title: Engine temperature indicating apparatus
IPC: G01K3/00
Filed: 1971-04-29
Abstract: 1285674 Measuring temperature electrically FORD MOTOR CO Ltd 29 April 1971 [22 June 1970] 12032/71 Heading G1N [Also in Division G4] In motor vehicle, a temperature gauge comprises a deflection instrument 64 arranged to pass a current dependent on the temperature of engine or cooling fluid and has provision (e.g. thermo-switch 68) for making a discrete change in said current at one or more predetermined temperatures. As described, the instrument 64 may be operated by a bi-metallic strip (not shown) and normally provides deflection determined by the resistance of thermistor 66, responsive to engine temperature. If the engine temperature becomes excessive thermo-switch 68 closes so as to provide a discrete change in the deflection of instrument 64. A buzzer 72 may be included as an audible warning. Diode 70 prevents operation of the buzzer 72 except when thermo-switch 68 is closed. In Fig.1 (not shown) the instrument 64 is connected in a network of resistors and diodes including a three-position thermo-switch having one contact closed when the engine is excessively cold and a further contact closed when the temperature is excessive.
Patent GB-1045427-A (GB)
Title: Improvements in metallurgically bonded composite metal structures
IPC: B23K20/00
Filed: 1965-03-22
Abstract: 1,045,427. Making composite metal articles. REVERE COPPER & BRASS INCORPORATED. March 22, 1965 [April 7, 1964], No. 12051/65. Heading B3A. A composite metal structure, e.g. a rod or a tube, is made from cold workable materials which can be metallurgically bonded together, by placing the concentric metal components of the composite one inside the other, subjecting the composite to a preliminary cold drawing operation to seat the outer component firmly on the inner component, subjecting the composite to a first cold drawing operation to reduce the cross-sectional area of the composite to an extent limited only by the cold working properties of the materials of the composite, subjecting the cold drawn composite to a first annealing operation wherein the composite is heated to the annealing temperature of the metal component having the highest annealing temperature and is held at this temperature for a length of time sufficient to anneal all of the components of the composite, and thereafter subjecting the composite to at least one additional cold drawing operation and annealing operation to reduce the diameter of the composite to the desired degree and to create a metallurgical bond at the interface of the metallic components of the composite structure. The example describes the bonding of stainless steel to cupro-nickel alloy, but other metals which may be used are steel and other ductile ferrous alloys, copper, brass and other ductile cuprous alloys, nickel alloys, tin alloys or titanium and titanium alloys. Before assembly the surfaces of the metal components to be bonded together are thoroughly cleaned and may be plated with metal, e.g. copper or silver by electro-deposition. In making a threelayer composite the inner component may be wound with a tape of the second metal and placed inside the outermost tubular component.
Patent GB-242886-A (GB)
Title: A mechanical device for opening an egg without bruising the yolk
IPC: A47J43/14
Filed: 1925-05-09
Abstract: 242,886. McGee, M. May 9, 1925. Eggs, opening.-Uncooked eggs are opened by a device comprising two hinged cups a, a<1> each carrying a semicircular sliding blade b, b<1> guided in slotted lugs and having a limited inward motion against springs. The egg is placed in a cup, the opposing cup is closed, the blades b, b<1> are pressed into the shell and, before the blades are released, the cups are opened, thereby separating the shell portions and permitting the contents to be collected. Finger clips are attached to the spring hinge joint to facilitate the opening of the cups.
Patent GB-759645-A (GB)
Title: A telephone system with linefinders
IPC: H04Q3/00
Filed: 1954-04-27
Abstract: 759,645. Automatic exchange systems. LICENTIA PATENT-VERWALTUNGS-GES. April 27, 1954 [April 27, 1953], No. 12120/54. Class 40 (4). In a system in which a line-finder tests over the calling subscriber's loop, the line-finder connects into the test circuit a resistance-condenser combination to prevent rapid build-up of charge in the bell condensers of idle subscribers, which would otherwise cause unwanted tinkling of the bell. The satellite exchange shown has no batteries of its own and is provided with three main exchange lines VL<1>. . . VL<3> to which access is obtained over relay selectors, only the control circuit RW<1> of the first being shown. Battery is normally connected at the main exchange to both legs of VL<1> so that A and B are normally operated. When a subscriber T<1> closes his loop, a chain circuit is completed over the wire An for the relay D in the control circuit (say RW<1>) associated with the first free exchange line, to battery over the b-leg of VL<1>. Relay D disconnects A from the a-leg of VL<1> so connecting the selector control circuit to the a-leg. The main exchange then supplies pulses to the circuit RW<1> to step the relay switch, the testing circuit over the lead Pr being connected up by D which also connects up the resistance-condenser circuit C<1>, W<1>, W<2> in parallel with the subscriber's line circuits. The condenser C<1> in series with the resistor W<1> reduces the rate of rise of potential in each subscriber's line circuit. The condenser discharges over W<2> between each step. Completion of the connection takes place in known manner. Specification 759,589 is referred to.