baber/WOPTO huggingface dataset:
Patent GB-999273-A (GB)
Title: Semiconductor amplifiers
IPC: H01L21/00
Filed: 1961-11-13
Abstract: 999,273. Semi-conductor devices. INTERMETALL GES. FUR METALLURGIE UND ELEKTRONIC m.b.H. Nov. 13, 1961 [Nov. 11, 1960], No. 40590/61. Heading H1K. A semi-conductor amplifier utilizing a controllable tunnel effect comprises a semi-conductor 1 comprising a heavily doped zone p+, a weakly doped zone n, the latter having a strongly doped region n + near its surface, and means for applying an electric field perpendicular to the surface, thereby varying the width of the space charge region in the neighbourhood of the p + n+ junction. Thus the distance through which tunnelling has to take place is varied by the applied field. As shown, the field is applied by an electrode 8 separated by an insulating layer 7 which may be applied by an oxidation process or by vapour deposition of quartz or silicates, and the electrode 8 may be applied by vapour deposition. Alternatively the electrode 8 may be a point contact or a fine line along the p-n junction. In a further embodiment for introduction into the wall 17 of a waveguide, weakly doped n-type germanium 18, having a strongly doped surface layer 19, is provided with specks 29 of p + material produced e.g. by vapour coating with indium or tin-gallium alloy and heating in a slightly oxidizing material to cause the p+ material to contract into small spheres, which become alloyed into the material 18. Thus a plurality of junctions of the type described above are formed, and the tunnelling at these junctions is controlled by the transverse electric field of the wave in the guide, to vary the longitudinal current in the semi-conductor 18. This variation is superimposed on the wall current of the waveguide leading to amplification of the wave. In a further embodiment, Fig. 3 (not shown) a similar device is incorporated in a resonant cavity to provide amplification of standing waves or for use as an oscillator.
Patent GB-1154648-A (GB)
Title: Data Transmission System.
Inventor: PIERRET JEAN-MARC
IPC: H04L25/497
Filed: 1967-09-05
Abstract: 1,154,648. Digital transmission systems. INTERNATIONAL BUSINESS MACHINES CORP. 5 Sept., 1967 [21 Sept., 1966], No. 40619/67. Heading H4P. Each bit of data to be transmitted is encoded as a main pulse followed and preceded by several "echo" pulses of lower amplitude than the main pulse, the encoding being such that no main pulse coincides with any echo pulse. In the system described each input bit of duration T, Fig. 2 (part shown), produces a main pulse A of duration T/2, two echo pulses a1, a<SP>1</SP>1 of opposite polarity to pulse A, and two smaller echoes a3, a<SP>1</SP>3 of the same polarity, the echo pulses being spaced as shown and having a duration T/2. An input bit of opposite state produces the inverse signal. The transmitted signal is the sum of the encoded bits. The encoder, Fig. 3a (not shown), comprises a shift register fed by the input bits and giving a parallel output. The final stage of the register controls a switched potential divider which passes a pulse representing the main pulse to a first gate. The echo pulses appear at the output of a second gate, one input of which is obtained from a potential divider fed by the outputs of switched dividers controlled by other stages of the register. The gates are enabled alternately for a period T which is 90 degrees out of phase with the input bits. Thus the gates respectively pass two main pulses or two echo pulses when enabled. The gates' outputs pass via an OR gate to the transmitter. At the receiver the original data is recovered by sampling the received signal at times 2nT and 2nt + T/2.
Patent GB-1254555-A (GB)
Title: Color temperature switching circuit for television receivers
IPC: H04N9/70
Filed: 1968-08-27
Abstract: 1,254,555. Television. R.C.A. CORPORATION. 26 Aug,. 1969 [27 Aug., 1968], No. 40979/68. Heading H4F. In a colour television receiver for low-colourtemperature colour and high-colour-temperature monochrome reception a colour-temperatureswitching circuit comprises a transistor 50 across a red-control variable resistor 48. The transistor is forward biased during colour reception by a rectified signal, from a colour killer circuit 9 via transformer 53 and rectifier 63, charging capacitor 65, and provides a lowresistance shunt across the variable resistor 48, thus increasing the red drive to the kinescope 48 and lowering the colour temperature. During monochrome reception, diode 59 loads the primary of transformer 53 greatly diminishing the signal in the secondary so that capacitor 65 is not charged sufficiently to forward bias the transistor 50 which thus exhibits a high impedance across the variable resistor 48 decreasing the red drive to the kinescope 18 and giving a high colour temperature. The controlling signal can alternatively be derived from a separate signal source or the horizontal circuitry instead of from the colour killer circuit. In a second embodiment the colour temperature switching circuit reduces the magnitude of the green and blue drives during colour reception, thereby effectively increasing the red drive, by connecting the transistor 50 across a variable resistor between the red control variable resistor and the common junction between the green and blue control variable resistors, Fig. 2 (not shown).
Patent GB-937018-A (GB)
Title: Unbreakable and impervious ring, of moulded synthetic material, for package cans
IPC: B65D17/50
Filed: 1960-11-29
Abstract: 937,018. Tamper-proof closures. SATRAMETAL S.A. Nov. 29, 1960 [Dec. 2, 1959], No. 41058/60. Class 125(3). [Also in Group V] A tamper-proof plastic sealing ring 1, having a strip 8 adapted to be torn off on pulling a tab 9, has the part 11, Fig. 5, of the strip 8 adjacent the base 10 of the tab 9 progressively reduced in thickness so that the outer surface of the part 11 is tangential to a circle coaxial with the ring. The ring 1 is moulded by a mould having a stationary part 16 and two sliding parts 17, 18, the tangential portion 11 facilitating removal of the part 17 after moulding is completed. The tab 9 is roughened to facilitate gripping and the end 13 of the reduced thickness part 11 is V-shaped, Fig. 5, to facilitate initiation of tearing. The upper and lower ends of the ring 1 are gripped by turned-over portions 4, 2, on the lid; alternatively the ring may be glued or soldered to the container and lid, which may be of metal or plastics materials. Specification 869,726 is referred to.
Patent GB-1458049-A (GB)
Title: Process for preparing aryl-substituted pyridones
IPC: C07D405/04
Filed: 1973-12-18
Abstract: 1458049 Process for aryl-substituted pyridones AFFILIATED MEDICAL RESEARCH Inc 18 Dec 1973 [18 Dec 1972 19 July 1973] 41074/75 Divided out of 1458048 Heading C2C The invention comprises a process for making compounds (I) (where A is an optionally substituted aromatic or hereroaromatic group and R3 to R 6  are H, alkyl or optionally substituted aryl) by reacting (II) or (III) with AX (X is halogen), preferably in the presence of an alkali metal carbonate and finely divided copper. Pharmaceutical preparations having uricosuric and analgesic actions contain (I) as active ingredient.
Patent GB-874778-A (GB)
Title: Improvements in and relating to cobalt alloys
IPC: C22C19/07
Filed: 1959-12-03
Abstract: A chromium-tungsten cobalt-base alloy comprises the following composition by weight: Cr 19 to 22%, W 11.5 to 13.5%, Mo 0 to 3%, Fe 0 to 3%, Ni 0 to 1%, C 0.01 to 0.25%, B 0.001 to 0.15%, N2 0 to 0.06%, Mn 0 to 1%, Si 0 to 1%, with Co as balance.
Patent GB-1472165-A (GB)
Title: Wheel speed sensor module assembly
IPC: G01P3/488
Filed: 1975-10-08
Abstract: 1472165 Angular velocity sensors ROCKWELL INTERNATIONAL CORP 8 Oct 1975 [27 Nov 1974] 41265/75 Heading G1N The angular velocity of a wheel is determined by an electromagnetic transducer comprising a toothed member 20 rotating with the wheel and a magnetic pick-up unit housed in a casing 12 which fits snugly in a bracket 14 supported by friction in a frame 16 which is attached by a bracket to the wheel axle. The friction is produced by rubber caps 32 on posts 30 extending from the back wall 26 of frame 16 which are pushed into openings 38 in the casing 12. Additional friction is provided by fingers 44 and springs 46 on the side walls 40 of the bracket 14. When the wheel and rotor 20 are assembled on the axle, the rotor is pushed against wear ribs 50 on the front surface 18 of the housing 12 and this axial spacing is subsequently retained by the friction support for the housing.
Patent GB-936057-A (GB)
Title: Polymer compositions and their preparation
Inventor: WOLSTENHOLME PETER FRANK
IPC: C08K9/04
Filed: 1961-11-20
Abstract: A composition comprises a blend of a synthetic organic thermoplastic polymer and a filler having an average particle size between 5 and 100 microns, said filler comprising a sulphate of a Group II metal in association with a higher fatty acid or a salt or an ester thereof. The polymer may be derived from ethylene and/or propylene, butylene, styrene, vinyl chloride or acrylonitrile and optionally may be blended with elastomers such as natural or synthetic rubber.  The preferred fillers are those associated with Group II metal salts, preferably calcium or barium sulphate associated (i.e. coated or coprecipitated) with calcium or barium stearate.  The compositions also may contain stabilizers (phosphite, phenolic, or sulphur compounds) and/or peroxide cross-linking agents, and may be used in the production of pipe. Specifications 789,116, 799,392, 799,823, 801,031 and 867,566 are referred to.
Patent GB-1060294-A (GB)
Title: Controlling an impression roller, of an addressing or like printing machine
IPC: B41L47/46
Filed: 1963-10-21
Abstract: 1,060,294. Printing machines. ADREMAWEHKE G.m.b.H. Oct. 21, 1963 [Oct. 26, 1962], No. 41529/63. Headings B6C and B6D. [Also in Division F2] When a guard member 19, comprising a bar extending parallel to, and substantially along the entire length of, an impression roller 10 of an addressing machine, contacts an obstruction the impression roller is raised clear of the material the impression. The impression roller is carried by a link 6 pivoted on an axle 9 of a carriage 1 movable to and fro on a guide rail 2 and is rotated as the carriage moves by means of gears comprising a pinion 3, meshing with a fixed rack 4 and rigid with a pinion 11 which meshes with a gear-wheel rigid with the roller 10. A lever 7 pivoted at 20 to the link 6 is pivoted at one end to a lever 8 pivotally mounted on the carriage 1 to form an elbow linkage. In one end position of the carriage, as shown, a pin 5 on the gear 3 engages the link 6 to hold the roller 10 in a raised position. As the carriage moves to the left, Fig. 1, the pin 5 moves to allow a tension spring 12 to straighten the elbow linkage and thus lower the roller 10. On the return stroke, a roller 14 on a rocking arm 13 engages the end 17<SP>1</SP> of a fixed switching rail 16, causing a second roller 15 to move downwards to engage an extension 18 of the lever 8, thus bending the elbow linkage and raising the impression roller.
Patent GB-1509667-A (GB)
Title: Centrifuge container
IPC: G01N33/48
Filed: 1976-10-06
Abstract: 1509667 Collapsible container for centrifuge INTERNATIONAL BUSINESS MACHINES CORP 6 Oct 1976 [13 Nov 1975] 41551/76 Heading B2P  An annular flexible, collapsible centrifuge container for fluid, e.g. blood, separable into fractions according to density comprises an outer expansible fluid chamber 11, Figs. 1 and 2, in the form of an interrupted annulus, an inlet tube 19 extending from within the central opening 7 of the annular container to one end 17 of the chamber and a plurality of outlet tubes 33, 35, 37 extending radially inward from the other end 21 of the chamber to the central opening 7, the openings of the outlet tubes in the chamber being disposed at different radial distances from the central opening. The container is formed from two annular pieces 1a, 1b of flexible plastics, e.g. PVC, sealed together by heat and pressure to form fluid - tight welds at 3, 5, 9, 13, 15. The inlet tube 19 and the outlet tubes 33, 35, 37 are moulded, welded or sealed through the weld 9. The container 1, Fig. 4, may be used as a disposable bag in a centrifuge in the rotor 47 of which it is mounted on a flexible membrane 43 which covers an annular recess 44 to which fluid is supplied under pressure through channels 55, 56 to support the membrane. A cover 41 secured to the rotor may have a recess 40 on its lower surface to accommodate the annular chamber 11 when the latter is expanded by fluid to be separated. Whole blood to be processed may be fed to the chamber 11 via a tube 20, a rotary seal 52 and the inlet tube 19. Plasma, white blood cells and red blood cells are respectively withdrawn from the regions 27, 29 and 31 of the enlarged end 21 of the chamber through the outlet tubes 33, 35, 37, the rotary seal 52 and tubes 34, 36, 38 respectively.
Patent GB-1400197-A (GB)
Title: Tobacco smoke filter additive
IPC: B01J20/28
Filed: 1972-09-07
Abstract: 1400197 Tobacco-smoke filters BRITISHAMERICAN TOBACCO CO Ltd 7 Sept 1972 [26 Jan 1972] 41616/72 Heading A2C The filters, which have selectively enhanced filtering efficiency towards hydrogen cyanide and hydrogen sulphide, comprise a carrier of fibrous or filamentary cellulose acetate on which is supported a stabilized mixture comprising a plasticizer, zinc oxide, and either sodium carbonate, potassium carbonate or a mixture thereof, the molar ratio of zinc oxide to carbonate salt being from about 25 to 1 to 1 to 25. In the examples, the zinc oxide and the carbonate are milled with a plasticizer comprising a mixture of triethylene glycol diacetate and polyethylene glycol to form a stable dispersion which is then sprayed onto a bloomed cellulose acetate tow and the tow formed into filter rods.
Patent GB-1279525-A (GB)
Title: Hardening of epoxy resins
IPC: C08G59/50
Filed: 1970-09-01
Abstract: 1279525 Curing epoxy resins INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 1 Sept 1970 [2 Sept 1969] 41801/70 Heading C3B [Also in Division C2] Epoxy resins are hardened by amines of formula: R<SP>1</SP>-NH-R<SP>2</SP>-NH 2  in which R<SP>1</SP> is a C 1-4  alkyl or an aralkyl or aryl radical and R<SP>2</SP> is a C 5-12  alkylene radical, aralkylene, arylene or xylylene radical. Preferred examples are N- methyl-p-xylylenediamine and N-methyldecamethylenediamine, the preparations of which are described (see Division C2). The compositions may be hardened at room temperature, followed by a post-cure, e.g. at 120‹ C.
Patent GB-1493390-A (GB)
Title: Durable textile treating adducts
IPC: D06M15/37
Filed: 1974-09-27
Abstract: 1493390 Textile treating adducts; copolymers E I DU PONT DE NEMOURS & CO 27 Sept 1974 [27 Sept 1973] 42050/74 Headings C3R and C3P [Also in Divisions D1-D2] Adducts useful in textile treatment comprise a first component (I) for improving the functional performance (e.g. oil and water repellancy, soil release, antistatic properties and durable press) and a second component (II) which has a durabilizing effect on the improved properties conferred by I; I and II are chemically bonded and II, which constitutes 5-50% by weight of the adduct is selected from esters, urethanes and amides having 1-10 repeating units and polyethylene glycol or a derivative thereof. II has a melting point of 100-300 C. and a solubility parameter differing by at least one unit from the solubility parameter of I. Examples of I are polyfluorinated compounds which impart oil and water repellancy and ethoxylated long chain aliphatic alcohols. Exemplified adducts are prepared (1) from hexa(methoxymethyl)melamine, polyethylene glycol of M.W. 550-2000, a compound R(OC 2 H 4 ) n H (R=C 10-16  straight chain alkyl and n=10-20) and oligomeric ethylene glycol terephthalate; (2) from hexa(methoxymethyl)- melamine, C n F 2n+1 CH 2 CH 2 OH (n=4-14), polyethylene glycol of M.W. 200-2000 and oligomeric ethylene glycol terephthalate; (3) a copolymer of wherein the fluorinated monomer is component I and the first mentioned monomer component II; (4) an adduct of hexa(methoxymethyl)- melamine, polyethylene glycol, (as above) and as component II and (5) a polyurethane derived from methylenebis(4-phenylisocyanato) (component II), a diisocyanate OCNCH 2 (CH 2 ) 34 CH 2 NCO, ethylene glycol, polyethylene glycol (M.W. 1000) and the monomethyl ether of polyethylene glycol M.W. 550.
Patent GB-993931-A (GB)
Title: Releasable couplings for safety ski bindings
IPC: A63C9/08
Filed: 1963-10-24
Abstract: 993,931. Ski bindings. H. MARKER. Oct. 24, 1963 [Oct. 31, 1962; March 27, 1963], No. 42061/63. Heading A6D. [Also in Division G1] A safety ski binding comprises cables 4, 5 which are detachably connected by coupling members 1, 2 behind the heel. The cable ends 7 are resiliently supported in the coupling members by springs 8 and one cable end supports a release member 9 which, under abnormal tension in the cable engages a stop 25 whereby a stop on an adjustable rod 18 is moved to operate a spring-biased latch 14 to release the two members 1, 2. An indicator 27 is arranged to be moved by the release member 9 to indicate the amount of travel of the cable in order that the latch may be released. In an embodiment the indicator is formed by a rotatable cylinder having a helical groove engaged by a release rod on the cable end. In a further embodiment the release member comprises an adjustable screw engaging directly a spring- biased latch member.
Patent GB-1412670-A (GB)
Title: Coking oven doors
IPC: C10B25/16
Filed: 1973-09-07
Abstract: 1412670 Hammer-blow coking furnace door G WOLFF JNR KG 7 Sept 1973 [16 Sept 1972] 42084/73 Heading C5E A hammer-blow coking furnace door equipped with a sealing edge member around its periphery for engagement with an oven head frame, the sealing edge member being held in place solely by frictional pressure applied by bolts clamping the member against the side of the door and by cam edges or surfaces on at last some of the bolts engaging the back of the member, each cam edge or surface extending about the axis of the respective bolt to present a working portion of continuously increasing radius over the greater part of the circumferential extent of the bolt. Each cam edge or surface corresponds to a spiral centred on the respective bolt axis and the greater part of the circumferential extent of the bolt may be substantially 270 degrees. Each bolt may include a co-axial disc-like portion extending radially beyond the cam edge or surface between the cam surface and the head of the bolt. Each bolt head may be formed as a polygonal bolt head. The remaining bolts may be hook bolts. The two opposite sides of the door may be equipped with cam bolts whose cam edges or surfaces are of opposite hands. For each cam bolt, the cam edge or surface and the threading for the nut retaining the bolt may be so handed that the bolt is self-locking.
Patent GB-1486452-A (GB)
Title: Account metering system particularly for use in a computer-controlled postage meter
IPC: G06Q30/00
Filed: 1974-09-27
Abstract: 1486452 Accounting system PITNEYBOWES Inc 27 Sept 1974 [16 Oct 1973] 42109/74 Heading G4T [Also in Division B6] An accounting arrangement, e.g. for printing a postage amount on a label to be attached to an item of mail and for forming a total of the amounts printed, includes electronic input means for presenting a postage amount to a printer which prints the corresponding symbols, and includes electronic accounting means connected between the input means and the printer for forming an account of the amounts printed. The accounting means includes a memory which has a very small current drain so that stored data remains intact for a long time in the event of battery operation due to power failure. The embodiment disclosed employ a computer (not described) for determining the postage amount and presenting signals representing this amount to a postage printer and signals representing the addressee to an address printer. The address printer may also be in the tamper-proof housing containing the postage printer. The accounting means is connected to the postage printer via a tamper-proof cable if these parts are in separate housings. The electrical circuitry is so arranged that a print command can be generated by the computer only if the postage printer type wheels have been correctly set and if the user's credit balance is sufficiently large. When the print command is issued it causes the postage printer to print and causes (a) a register holding the credit balance to be decreased by the postage value, (b) a register holding the accumulated total to be increased by the postal value, and (c) an item counter to be incremented by one. The credit balance register is increased by a fixed amount when a normally looked switch is manually actuated. The switch can be unlocked by, for example, keying in a code that is supplied by the Post Office when the fixed amount is paid to it. Further circuitry senses operating voltages in the arrangement and causes shut-down if the voltages lie outside a certain range. Standby batteries ensure that stored data is not lost and that any operation involving change in the contents of the registers is completed prior to shut-down.
Patent GB-1274109-A (GB)
Title: Water-soluble monoazo dyestuffs and process for their manufacture
IPC: C09B62/44
Filed: 1969-08-25
Abstract: 1,274,109. Water-soluble monoazo dyes. FARBWERKE HOECHST A.G. 25 Aug., 1969 [24 Aug., 1968], No. 42270/69. Heading C4P. Water soluble monoazo dyes have the general formula wherein A is the residue of a coupling component of the benzene, naphthalene, acetoacetic acid arylamide, pyrazolone or quinoline series, and X is -CH=CH 2  or -CH 2 -CH 2 -Y where Y is OH or an inorganic or organic residue capable of being split off by an alkaline agent. Groups which may be represented by Y include halogen atoms, alkyl or aryl sulphonic acid ester groups, phenoxy- or dialkylamino groups, and thiosulphuric acid ester, phosphoric acid ester or sulphuric acid ester groups. The dyes are obtained conventionally by diazotization and coupling and if the resulting dye contains a group of formula -SO 2 -CH 2 -CH 2 -OH the hydroxyl group is optionally esterified with a sulphating or phosphorylating agent. The dyes give yellow and red shades on leather, wool, silk or polyamide or cellulose fibre materials.
Patent GB-1482000-A (GB)
Title: Self-sealing electrical capacitors
IPC: H01G4/224
Filed: 1974-09-30
Abstract: 1482000 Capacitors ROBERT BOSCH GmbH 30 Sept 1974 [1 Oct 1973] 42304/74 Heading H1M A self-healing electrical capacitor comprises a capacitor body 10 in housing 27, body 10 comprising a wound roll of metallized polypropylene films, the body having a protective coating 19, 20 at least at the end faces of the roll to prevent ingress of moisture or oxygen at these vulnerable zones, and the capacitor being unimpregnated. Leads 21, 22 welded to contact coatings 17, 18 pass through the protective coatings, e.g. cured silicone rubber, lead 22 being lead through roll former 11. As shown the protective coatings extend on to the side of the roll and the inside surface of the roll former. The capacitor may incorporate a cut-out mechanism actuated by extension of corregation 31 or increase of internal pressure. In an alternative embodiment (Fig. 6) the former is removed, the roll flattened, lead 22 is lead through a fabric tube 35 prior to complete encapsulation in, e.g. epoxy resin 34. The protective coating may alternatively be epoxy resin applied by heating the body in a bath containing epoxy resin powder (whilst sintering). Outer unmetallized turns of the polypropylene film may be welded together.