baber/WOPTO huggingface dataset:
Patent GB-1442524-A (GB)
Title: Superconductive switches
IPC: H01L39/14
Filed: 1974-05-14
Abstract: 1442524 Cryogenic switch SIEMENS AG 14 May 1974 [14 May 1973] 21399/74 Heading H1N An electrical switch for shortcircuiting a superconductive coil has contacts 6, 7 which contain stabilized superconductive material and has drive means in the form of spring bellows 10, 13, for closing and opening the contacts. These bellows are fed with a cryogenic medium, preferably liquid helium, from a cryostat through pressure lines 12, 14, one connecting respectively with each bellows. The switch body may be in the form of two telescoping cylinders, so that to close the contacts 6, 7 one bellows 10 is expanded carrying a moving contact 7 with it into contact with a fixed contact 6 whilst to open them the second bellows 13 is expanded moving the two body cylinders apart to carry the one bellows 10 and its associated contact away from the fixed contact 6. In a second embodiment, Fig. 2, not shown, a single bellows is pressurized to open the contacts and they are closed by a spring when the pressure in the bellows is relieved. The superconducting material in the contacts is stabilized by being in good electrical contact with normally conductive material, as superconductive wires in a copper matrix.
Patent GB-644326-A (GB)
Title: Improvements in universal tight packing susceptible of acting at the same time as a tight bearing and tight centering element
IPC: F16J15/36
Filed: 1947-08-06
Abstract: 644,326. Stuffing-box substitutes. DOBROSAVLJEVIC, S. Aug. 6, 1947, No. 21415. Convention date, Aug. 8, 1946. [Class 122(v)] [Also in Group XXXIV] A packing arranged between inner and outer components A, E, of a machine and which permits rotary and axial displacement of the components relative to one another, is secured to or contacts one of the components E, and bears against an abutment B on the other, and comprises at least one resilient diaphragm 1 secured between two concentric rings 2, 3, one or both of which have a contact face G and a convex face against which the diaphragm can bear when it is deformed. The packing is assembled under tension due to axial resilient deformation of the diaphragm so that the ring 2 engages the component E, the face G of the ring 3 being held continuously against the abutment B thus ensuring fluid tightness though permitting relative rotational movements between the components. The face G is held in engagement with the abutment with a pressure resulting from the resilient tension of the diaphragm 1 and the pressure P of the fluid itself, although the resilient tension of the diaphragm alone is sufficient. Various embodiments are shown including the use of elastic washers with the diaphragm, the provision of lubricating passages on the face G, and the use of several packings in one unit (Fig. 42) which may be used as an elastic and fluid-tight bearing or thrust block (see Group XXXIV).
Patent GB-990429-A (GB)
Title: Nuclear reactors
Inventor: CAMPBELL RONALD HUGH
IPC: G21C5/06
Filed: 1962-06-04
Abstract: 990,429. Nuclear reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 21, 1963 [June 4, 1962], No. 21433/62. Heading G6C. In a nuclear reactor of the kind using hexagonal fuel elements clustered so as to be in contact with one another except at interspaces permitting coolant flow over the elements, a full-group fuel assembly 14 of the core comprises six similar sub-group fuel assemblies 15 arranged symmetrically to define a void, each sub-group assembly comprising 21 fuel elements 17 arranged in a hexagonal group of 19 with the appendage of 2 fuel elements to that side of the hexagonal group facing the void. Each fuel element (Fig. 2) comprises an outer graphite sleeve 19, a graphite sheath 20 and fuel inserts 21 stacked on a graphite spine 22. The fuel inserts 21 are of short cylindrical form and are a loose fit in the sheaths 20 which in turn are a loose fit in the sleeves 19 so that spaces exist along which a purge gas can flow to sweep away fission products. The sleeves 19 contact each other at projections 23 and thereby define Y- shaped channels 24 along which coolant gas can flow. A control rod assembly 16 disposed within the void (Fig. 3) has a graphite sleeve 25 which acts as a guide tube and also serves to support adjacent fuel elements 17, while inside the guide tube is a control rod 26 made up of inner and outer graphite sleeves 27, 28 between which is a boron carbide cylinder 29. In the reactor described, the innermost fuel element of each subgroup fuel assembly is replaced by a dummy graphite rod 18 which may be removed to allow access to the bottom of the assembly by a grab whereby the assembly can be removed from the reactor core. A steel pressure vessel 10 encloses the reactor core which has an outer graphite reflector made of arch blocks 11 and spaced from an inner graphite reflector made of basically hexagonal blocks 12. Specification 967,203 is referred to.
Patent GB-422713-A (GB)
Title: Improvements in and relating to electric converting apparatus
IPC: H02M7/51
Filed: 1933-07-31
Abstract: 422,713. Converting. BRITISH THOMSON - HOUSTON, CO., Ltd., Crown House, Aldwych, London.-(Assignees of Morack, M. M. ; 900, Union Street, Schenectady, New York, U.S.A.) July 31, 1933, No. 21497. Convention date, July 30, 1932. [Class 38 (ii)] A parallel type inverter has a circuit independent of the normal grid circuit for impressing on the grids of the valves a transient negative potential to secure a rapid deionization of the valves. Energy is transmitted from the D.C. circuit 10 to the A.C. circuit 11, by means of the transformer 12, vapour discharge valves 15, 16 and the commutating condenser 17. The grids of the valve are influenced from an A.C. circuit 21 by means of a transformer 20 and resistors 19, but are also connected to opposite plates of the capacitor 17 through contact rectifiers 22, 23. If, for example, the valve 15 is conducting the capacitor 17 is charged up and then when the grid potential reverses polarity, the valve 16 is rendered conducting, and the valve 15 quenched by the discharge of the capacitor 17 causing the anode to become negative. At the same time, this negative potential is applied between the cathode and the grid of the valve 15, and current flows through the contact rectifier 22 rapidly to deionize the valve. In modifications, (not shown), in order that a fraction of the voltage of the capacitor 17 may be utilized, a resistance potentiometer or a capacitance potentiometer is connected across the capacitor 17. Specification 378,062 is referred to.
Patent GB-662209-A (GB)
Title: Improved tile cutter
IPC: B28D1/22
Filed: 1949-08-19
Abstract: 662,209. Scoring tiles. WHALE, C. V. Aug. 21, 1950 [Aug. 19, 1949], No. 21635/49. Class 124 A tool for scoring tiles comprises a steel shaft 1 of substantially rectangular section with a cemented carbide tip 3, the shaft and tip being bevelled at approximately 45 degrees to form a cutting edge 3a lying in the same plane as the side face 5 of the shaft, and ground on two other faces to form cutting points 3b, 3c at the ends of said edge. The tip 3 is located in its slot by means of a lip 4 preparatory to welding ot brazing.
Patent GB-502325-A (GB)
Title: Improvements relating to food-storage cabinets
IPC: A47B71/00
Filed: 1938-07-21
Abstract: 502,325. Cabinets. WRENCH, A. E. July 21, 1938, No. 21650. [Class 52 (i)] Rigid panels 10 with rubber gaskets 11 are detachably secured to the faces of a meat-safe or like cabinet to cover the gauze 8 and joints of the framework.
Patent GB-151227-A (GB)
Title: Improvements in confectionery coating machines
IPC: A23G3/22
Filed: 1919-06-05
Abstract: 151,227. Marks, E. C. R., (National Equipment Co.). June 5, 1919. Drawings to Specification. Coating confectioners' goods.-In a machine for coating articles with chocolate &c., the material is drawn from the supply tank bv a pump or other means which is reversible in order to return excess material from the pipe system to the tank when the coating operations are finished. The invention is described in connexion with the coating-machine forming the subject of Specification 150,799.
Patent GB-1148144-A (GB)
Title: Fluidic systems
IPC: F16L55/24
Filed: 1967-05-10
Abstract: 1,148,144. Solvent addition to pressure fluid of a fluidic system. GENERAL ELECTRIC CO. 10 May, 1967 [3 June, 1966], No. 21705/67. Heading G4P. A fluidic system is characterized in that means are provided to inject a small amount (0À001 to 1À0%) of a suitable solvent into the pressure fluid whereby a build-up of condensate in the fluidic elements is avoided. The Specification discusses the choice of solvents, e.g. dilute acids for hard water to prevent calcium deposits or distilled water for air supplies contaminated by salt spray, and illustrates an atomizer for adding kerosene to a "factory" air supply.
Patent GB-962092-A (GB)
Title: Improvements relating to fluid mixing valves
Inventor: CLASSEN HANS-HEINRICH
IPC: F16K7/02
Filed: 1963-05-30
Abstract: 962,092. Valves. ROKAL G.m.b.H. May 30, 1963 [Feb. 26, 1963],No. 21718/63. Addition to 962,091. Heading F2V. In a modification of the hot and cold water mixing valve of the parent Specification, wear upon the resilient cylindrical obturating gasket is reduced by using an intermediate member which reciprocates between the parts upon an eccentric formed on the rotatable member. Resilient cylindrical gasket 13 is fixed to casing 2 and pressed against ports 9 and 10 by hollow slide 22 guided between a pair of webs 28, and reciprocated upon the eccentric 29 at the end of rotated member 1. The webs 28 are secured between the face of the mixing chamber 11 and gasket securing ring 26 and web extensions 30 engage beneath the slide 22. In an alternative embodiment a horseshoe shaped intermediate member 23 having cylindrical outer surfaces 31 and 32 is rocked about pivot 33 into sealing engagement with either of ports 9 and 10 by an extension 34 of the member 1, eccentric to the stem axis of rotation.
Patent GB-597723-A (GB)
Title: Improvements in and relating to lubricants and to brake and clutch impregnating materials
IPC: F16N15/00
Filed: 1945-08-24
Abstract: A composition or dressing which functions as an abrading or polishing agent as well as a lubricant for dissimilar relatively hard and soft contacting friction clutch surfaces, comprises a lubricating grease containing finely divided solid particles (other than sulphur) of greater hardness than the harder surface, p  e.g., 300 parts by weight of lubricating grease containing either one and a half parts by weight of colloidal levigated alumina or one part by weight of levigated alumina, 12 parts by weight of lithopone, and 3 parts by weight of rotten stone.  The alumina is the oxide and not the gelatinous precipitated hydroxide and is therefore an abrasive and polishing agent.  The lubricant may be imbedded in the softer discs to prevent wear thereof by the harder discs.
Patent GB-721143-A (GB)
Title: Improvements in means for packing flowers
IPC: B65D5/50
Filed: 1950-09-04
Abstract: 721,143. Packing flowers. CHAPLIN, P. H. Sept. 4, 1951 [Sept. 4, 1950; Nov. 10, 1950], Nos. 21751/50 and 27536/50. Class 18. A means for packing flowers comprises transverse upstanding ridges 5 formed with a number of notches 7 for receiving the calyx of a flower, the notches of successive ridges being in longitudinal rows. The notches in successive ridges may be progressively deeper to accommodate the stems of flowers held in the preceding notches. The ridges may be formed from a sheet of paper with ridges formed by transverse crimping, or of corrugated cardboard with ridges formed by transverse folding. The ridges may be formed by bending from the plane of a sheet tongues cut from that sheet, the tongues being in transverse rows, gaps between the tongues in each row constituting the notches. The ridges may be formed by independent strips, or by a strip bent in serpentine fashion. The notches may be substantially figure of eight shaped, the lower loops becoming wider in successive ridges. The sheet may constitute the bottom of the box. Specification 721,187 is referred to.
Patent GB-1338022-A (GB)
Title: Striking machine
IPC: B25D11/10
Filed: 1971-04-19
Abstract: 1338022 Percussive tools RENHOLMENS MEKANISKA VERKSTAD AB 19 April 1971 [13 Feb 1970] 21936/71 Heading B4C In a percussive machine, impacts are applied to a tool holder 23 by a hammer 17 raised, against bias of spring 25, by a cam mechanism and subsequently released. An arm 12 pivotally attached at 13 to the hammer carries at one end a roller (10) (Fig. 2, not shown) and at the other end a shock-absorber 28 which limits counterclockwise pivoting of the arm. The roller (10) coacts with cam surface 9 of a rotatable cam plate driven in use via a shaft 3 by a drive motor of the machine. The motor may be an electric, hydraulic, or pneumatic motor or an I.C. engine. Alternatively the machine does not include a motor in which case the shaft 3 is driven from an external source. Guides 19 and a guide sleeve 20 guide the hammer which thus moves rectilinearly. The cam surface 9 illustrated provides two strokes of the hammer for each revolution of the cam plate. Other cam plates may be used which provide a single or more than two strokes per revolution.
Patent GB-1358683-A (GB)
Title: Liquid flow control devices
IPC: F16K31/34
Filed: 1971-08-09
Abstract: 1358683 Fluid pressure servomotor systems H G JONES 9 Aug 1971 [7 May 1970] 21966/70 Heading G3P A liquid-level-control servo valve, comprises a main, two-part valve member 11, 12 and a float controlled pilot valve member 6, the latter controlling the pressure within a pilot chamber SC. In the fully open state of the pilot valve, the pilot chamber SC is vented at a greater rate than it is supplied with fluid from the inlet 3, such supply being by way of a bleed hole 14 and around a tapered pin 15 while prospects into the bleed hole. Thus, the main valve member is moved away from its seat 4b by the inlet pressure acting thereon and so the inlet 3 and outlet 4 are placed in communication with one another. As the float 8 rises, so the pilot valve 5, 6 closes and the pressure within pilot chamber SC rises until firstly, part 12 of the main valve member engages the seat 4b and then secondly, part 11 flexes to engage an upstanding rim of the seat. With only part 12 engaged on the seat, a restricted flow between the inlet 3 and outlet 4 tubes place through four passages 12c on the part 12, the part being slidably mounted on a stem 13 extending from the valve member part 11. The provision of the tapered pin 15 is sent to prevent blockage of the bleed hole 14 by foreign matter.
Patent GB-1178037-A (GB)
Title: Reel for Supplying Welding Wire
IPC: B65H75/14
Filed: 1967-05-11
Abstract: 1,178,037. Metal reels. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 11 May, 1967 [14 May, 1966], No. 21982/67. Heading B8M. A reel for supplying welding wire comprises a cylindrical sheet metal sleeve 2, a plurality of metal strips 1 secured at intervals around the curved surface of the sleeve and having bentover parts 4 which extend radially outwards of the sleeve in the manner of flanges, and at each end of the sleeve a sheet metal plate 6 secured to the sleeve and extending across the end thereof, each plate 6 having a shaft-receiving aperture 8 and a fixing aperture 9. The edges of each plate 6 may be flanged as at 7. The fixing aperture 9 locates the reel with respect to a reel holder arranged in welding apparatus in which the wire on the reel is to be used.
Patent GB-1584510-A (GB)
Title: Switching arrangement
IPC: H03K3/02
Filed: 1978-05-24
Abstract: A circuit arrangement (T1, T2, R1-R6) for producing a pulse (terminal m0) for setting the electronics of an electronic apparatus when said apparatus is connected to the supply voltage (VUG) for the first time or when, after a failure of the supply voltage (VUG), said supply voltage does not return until the voltage of a battery (B), which is operated in the buffering mode and is used for supplying standby power to the electronics via a DC/DC converter (DC), falls below a predetermined value. <IMAGE>
Patent GB-1347108-A (GB)
Title: Apparatus for growing single crystals
IPC: F27D11/02
Filed: 1971-04-19
Abstract: 1347108 Crystal pulling NIPPON ELECTRIC CO Ltd 19 April 1971 [18 Feb 1970] 22070/71 Heading BIS In a crystal pulling process, having a heater surrounding a melt contained in a crucible, the A.C., which energises the heater, also supplies a rotary magnetic field to stir the melt. Either a high frequency inductive heater or a resistive heater may be so connected to a polyphase supply as to provide the required rotation of the magnetic field. A resistive heater may be in the form of a vertically slotted highly purified graphite sleeve 4 and be so provided with terminal connections as to form three resistors in delta configuration. In another form, slots run spirally to a common termination (4a, Fig. 7, not shown) which constitutes the centre point of a star configuration. The graphite may be coated with SiC or, alternatively, the heater may be constructed of Wo or Mo. A reversing switch (37, Fig. 5, not shown) may be used to reverse the direction of rotation of the magnetic field. In an example a silicon rod is prepared containing 10<SP>17</SP> atoms of Sb per c.c.
Patent GB-937856-A (GB)
Title: Regenerators for industrial furnaces
Inventor: KIESSEWETTER FRITZ DIPL ING
IPC: C13K1/10
Filed: 1961-06-19
Abstract: Magnesia bricks containing 0,1-0,5% of one or more boron compounds (calculated as B2O3) are employed in regenerators in industrial furnaces e.g. tank furnaces for glass manufacture.  The boron may be introduced by impregnating the bricks, but preferably by mixing boric acid, alkaline earth metal borates or borax into the refractory batch from which the bricks are made.  Thus such boron compounds may be added to sintered or unsintered magnesia which is then formed into bricks, after sintering if necessary.  The bricks are resistant to rehydration, have good thermal shock resistance and high refractoriness under load.  The regenerator may be a grate checkerwork.  Application 21483/1900 and U.S.A.  Specification 2,571,101 are referred to.
Patent GB-207502-A (GB)
IPC: D01D10/04
Filed: 1923-09-03
Abstract: 207,502. Kaufmann, W., and Sinkwitz, R. Nov. 25, 1922, [Convention date]. Drawings to Specification. Commingling jets.-The Specifi,cation as open to inspection under Sect. 91 (3) (a) describes an atomizer consisting of two nozzles arranged at an adjustable angle so that the jets of water impinge upon each other and form a fan-like spray. This subject-matter does not appear in the Specification as accepted.
Patent GB-679374-A (GB)
Title: Process for the production of new copolymers of vinyl phenols
IPC: C08F16/02
Filed: 1949-08-26
Abstract: Copolymers are made by copolymerizing a mono-vinyl phenol having at least one unsubstituted carbon in the o- or p-position with an acetal or semi-acetal of an unsaturated aldehyde, e.g. acrolein, a -alkyl-, a -aryl- and a -haloacroleins, with methyl, ethyl, iso- or n-propyl and n-butyl alcohols.  Vinyl phenols specified are o-, m- and p-vinyl phenols, 3-vinyl-5-methyl-, 2-vinyl-3-methyl-, 3-vinyl-4-methyl-, 2-vinyl-4-methyl-, 2-methyl-4-vinyl- and 2-vinyl - 6 - methyl - phenols.  A third monomer, e.g. styrene, a -methyl styrene, nuclear alkyl- or halo-styrenes, vinyl and vinylidene halides, acrylic, a -methacrylic and a -chloracrylic acids and their esters and nitriles and methyl vinyl ketone may be present.  Polymerization is preferably effected in the presence of a peroxide, e.g. benzoyl or lauroyl peroxide, or perester catalyst, with or without heat or ultra-violet irradiation, in the presence or absence of a solvent for both the monomers and polymers, at low temperature using aluminium chloride as catalyst, or in emulsion, using persulphates with or without sodium sulphite as catalyst.  The fusible soluble copolymers, e.g. in the form of filaments, foils, coatings or mouldings, may be hardened by hydrolysis with mineral acids, by heating above 100 DEG  C. or by ultra-violet irradiation, whereby the aldehyde groups are liberated and cross-linking occurs.  In an example, films of the copolymer, cast from a solution in benzene and methylated spirit, were converted to the infusible, insoluble state by heating at 130 DEG  C. for 14 hours or by immersion in hydrochloric acid.
Patent GB-531745-A (GB)
Title: Improvements in or relating to cascade diffusion pumps for the production of high vacua
IPC: F04F9/00
Filed: 1939-08-01
Abstract: 531,745. Diffusion pumps. DISTILLATION PRODUCTS Inc. Aug. 1, 1939, No. 22254. Convention date, Aug. 9, 1938. [Class 71] In a cascade diffusion-pump employing a mixed organic fluid, the thermal decomposition products of the least-volatile constituents of the fluid are prevented from impairing the vacuum by collecting those constituents in a heated chamber arranged to discharge vapour through a jet other than the lowest-pressure jet. The pump shown in Fig. 1 comprises a casing 2 containing cylinders 12, 14, 16, provided with high, intermediate, and low pressure jets 22, 24, 26, and a cylinder 40 leading to the jet 22. The spaces between the cylinders form annular boilers 34, 36, 38 of approximately equal area, and another boiler 42 is formed by the cylinder 40. The boilers are heated by a resistance 46 so arranged that the temperature increases uniformly towards the centre. The cylinders 12, 14, 16, 40 are formed with openings 47, 48, 50, 52 so arranged that the fluid flows in a tortuous path through the boilers 34, 36, 38 to the boiler 42. Baffles may be arranged in the boilers. The least-volatile constituents of the fluid flow through the boilers 34, 36, 38 into the boiler 42 and are discharged as vapour through the highpressure jet 22. In a modified form of pump, passages in connection with the cylinders and a baffle in the inner cylinder are so arranged that the least-volatile constituents of the fluid are discharged as vapour through the intermediatepressure jet 24. Specification 473,978 is referred to.
Patent GB-1368872-A (GB)
Title: Open-top refrigerated display units
IPC: A47F3/04
Filed: 1972-05-11
Abstract: 1368872 Display cases LINDE AG 11 May 1972 [12 May 1971] 22263/72 Heading F4H An open-top refrigerated display case includes a reversible fan 4 such that air is forced through a passage 9a beneath the goods display area 3 in one direction during the refrigeration cycle, and in the opposite direction during a defrost cycle. A baffle 8a is provided to prevent heated air in the defrost cycle from entering the display case. The fan drive 5 and a heating device 12 are controlled by a thermostat.