baber/WOPTO huggingface dataset:
Patent GB-1318595-A (GB)
Title: Radiation detector
IPC: H01L31/0203
Filed: 1970-09-21
Abstract: 1318595 Semi-conductor devices PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 Sept 1970 [24 Sept 1969] 44792/70 Heading H1K A radiation detector comprises a central cavity around which is present a radiation sensitive junction between two regions of opposite conductivity types, which may be separated by an I-type region, the body being secured inside a sealed housing by means of a rigid pin forced into the cavity. As shown, Fig. 1, a cylindrical crystal Cl comprises coaxial layers 1, 2 of opposite conductivity types separated by an I-type region 3, and has a central through bore 4. The crystal is mounted by means of a tubular pin 5a forced into the bore 4, the pin having a disc like head 5b which is secured in a header 7 by means of an external clamping ring 8. The pin 5a may be tapered as shown or may have longitudinal slots so that it grips the wall of the bore, and may be of a metal such as Al, an insulating material such as a ceramic with metallized outer faces, or of the same material as the crystal C1. The pin 5a provides the contact to the inner layer 2 and its head 5b may be insulated from the crystal by a ring 6. An insulated lead 10 is passed through the tubular pin 5a and bore 4 and connected to the outer layer 1 at the upper face edge of the crystal. A cover 12 of metal or ceramic is placed over the crystal and secured to the header 7. In a second embodiment, Fig. 2 (not shown) the crystal is provided with a blind bore (24) into which is inserted a pin (25) the head of which is directly secured to the centre of the header (26). Contact to the outer layer (21) of the crystal is provided at its lower edge. Mention is made of Ge detectors containing Li as a compensating impurity operated in vacuo at liquid nitrogen temperatures. The cross-sectional shape of the crystal may be parallelepiped, preferably square, or trapezoidal instead of circular.
Patent GB-1409102-A (GB)
Title: Fluid ejector arrangements
IPC: B05B1/02
Filed: 1972-09-28
Abstract: 1409102 Spinneret W C HERAEUS GmbH 28 Sept 1972 [30 Sept 1971] 44849/72 Heading B5B A device for ejecting fluids, in particular a spinneret for melt-spinning fibres from organic polymers, has at least one exit passage which is orientated, in the vicinity of its mouth, perpendicularly to the exit face at the mouth. The exit face is covered with a crystalline layer at least 2 Ám. thick consisting of crystals the longest dimension of which is substantially perpendicular to the exit face at the mouth and each of which has a diameter which is small compared with its length. The crystals may be of a metal selected from Ti, Va, Ni, Ta, Cr, Mo, W, Fe, Co, Ni, Au, Ag, Cu, Al and platinum group metals.
Patent GB-1517567-A (GB)
Title: Polyester filaments and fibres with dyeability
IPC: C08L67/00
Filed: 1975-10-30
Abstract: 1517567 Polyester fibres having improved dyeability BAYER AG 30 Oct 1975 [23 Jan 1975] 44905/75 Heading C3R A polyester fibre having improved dyeability comprises from 85 to 97% by weight of polyethylene terephthalate or poly-1,4-cyclohexylene dimethylene terephthalate and from 3 to 15% by weight of polybutylene terephthalate.
Patent GB-1269304-A (GB)
Title: Improvements in or relating to brushless d.c. motors
Inventor: CASADAY WILLIAM MADISON
IPC: H02P6/24
Filed: 1970-09-22
Abstract: 1,269,304. Electric motors; control of electric motors. SPERRY RAND CORP. 22 Sept., 1970 [26 Sept., 1969], No. 45002/70. Headings H2A and H2J. A brushless D.C. motor comprises a stator winding 11, a permanent magnet rotor 13, a rotor position sensor, first and second groups of commutating switches responsive to the sensor to sequentially connect sections of the stator winding to first and second poles respectively of a D.C. supply, and a dynamic braking arrange. ment whereby during braking the first group of switches 19, 21, 23, are opened to disconnect the winding from the first pole of the supply and the switches of the second group 25, 27, 29, are closed to provide return paths for currents induced in the winding. The rotor position sensor is optical and includes a phototransistor, e.g. 17, 51, associated with each switch. Under normal running conditions switches in the two groups are operated in pairs sequentially to produce a rotating field in the winding 11. A transistor 67 is connected in circuit to limit the starting current to a safe value. Under braking conditions, with switch 49 in the downwards position, the switches 19-23 are maintained in the open condition by shunting the phototransistor output signals to earth through resistor-diode combinations such as 47. At the same time the switches 25-29 are kept closed, by supplying them with positive voltage over resistor-diode combinations 71, 73, 75, to provide for currents induced in the winding 11 a path comprising output transistors, e.g. 65, in the switches, current limiting transistor 67 and diodes 77, 79, 81. The switch 49 would normally be in the form of logic circuitry providing running and braking signals.
Patent GB-1378233-A (GB)
Title: Polyesteramides and process therefor
IPC: C08G69/00
Filed: 1972-10-02
Abstract: 1378233 Laminates VULCAN MATERIALS CO 2 Oct 1972 [20 Oct 1971] 45274/72 Heading B5N [Also in Divisions C2 and C3] Laminates are made by bonding several layers of glass-fibre cloth with a solution of a polyesteramide (P) in styrene. On curing in the presence of Co naphthenate and MEK peroxide, the styrene acts to crosslink (P). The glass-fibre cloth may have been pretreated with methacrylatochromic chloride in isopropanol. Polyesteramide (P) may have repeating unit or where R<SP>1</SP> is alkylene, arylene, aralkylene, or optionally substituted with one or more of F, Cl, Br, and/or C 1 -C 15  alkyl or alkoxy; R<SP>2</SP> and R<SP>3</SP> are independently H, alkyl, or aryl, B<SP>4</SP> is aminoalkyleneoxy or oxyalkyleneamino, R<SP>5</SP> is ethylenically unsaturated alkenylene and R<SP>6</SP> is alkylene or alkenylene.
Patent GB-1523919-A (GB)
Title: Removing combustible materials from engine exhaust
IPC: F01N3/18
Filed: 1975-10-31
Abstract: 1523919 Regulating air/fuel mixture ratio; timing ignition ESSO SOC ANON FRANCAISE 31 Oct 1975 [4 Nov 1974] 45355/75 Heading F1B [ Also in Division F4] In an internal combustion engine, having a snail type afterburner, a choke butterfly valve 24 controlling the air intake to the carburetter is regulated by a manometer capsule 21 connected to the inlet manifold 27 downstream of the throttle 26, so that the air intake is reduced when the engine is idling or at low load. The engine contact breaker 33, Fig. 9, is adjusted by a lever 36 connected between manometer capsules 32a and 32b, connected to either side of the throttle valve 31, so that the ignition is retarded when the engine is idling or under low load by the rotation of the contact breaker 33.
Patent GB-1528147-A (GB)
Title: Temperature or pressure monitoring instrument
IPC: G01D13/06
Filed: 1975-10-31
Abstract: 1528147 Pressure gauges; indicating apparatus METZ MANNHEIM GmbH 31 Oct 1975 [18 Nov 1974] 45541/75 Headings G1J and G1L A pressure or temperature monitoring device comprises a sensor 10 which extends as a function of the monitored parameter, a belt 16 extending over two rollers 17, 18 coupled to the sensor in such a manner as to be displaced an amount proportional to the movement of the sensor, the belt having a characteristic which varies continuously or discontinuously along its length and sensing means 19 ..... 22 which produce an output signal which varies as a predetermined function of the parameter. The characteristic of the belt which varies may be its transparency, reflectivity, porosity or a magnetic property. The sensing means may be reed switches, inducting coils, capacitative sensors, air nozzles or light sensitive. A pressure gauge includes bellows coupled to the belt by a pivoted lever 14 or by a rack and pinion. The belt may carry a pointer, a coloured strip, or a printed scale, for visible analogue or digital display.
Patent GB-1368636-A (GB)
Title: Colour-image display apparatus
IPC: H01J31/20
Filed: 1971-10-01
Abstract: 1368636 Colour television tubes; lasers FUJI SHASHIN FILM KK 1 Oct 1971 [1 Oct 1970] 45921/71 Headings H1C and H1D A colour display device, e.g. for television, comprises a cathode-ray tube wherein the electron beam is modulated by a light beam and impinges on a screen which converts the modulation back into light of the same wavelength. In Fig. 3 red light (6471Š) from a 10 w krypton laser 321 impinges on a thin modulator plate 327 of monocrystalline Al 2 O 3  or of SiO 2  and modulates an electron beam passing through it; when the beam impinges on the screen 313 of polycrystalline Al 2 O 3  or SiO 2  the red light is reproduced. The intensity of the light output may be varied by modulating the intensity of the electron beam, or by modulating the intensity of the light input by means of a modulator 324 which may be of lithium tantalate, or by varying the plane of polarization of the light input. The tube includes two other beams modulated by respective argon ion lasers 322 and 323 operating at 5145Š and 4880Š to provide a three colour display system. In a modification, Fig. 4 (not shown), a single constant electron beam passes in sequence through three modulators so that it is modulated by three light beams; in a further modification, Figs. 5 and 6 (not shown), the single electron beam passes through a single modulator which is modulated simultaneously by three laser beams.
Patent GB-1148947-A (GB)
Title: Tunnel lining
IPC: E21D11/15
Filed: 1966-10-17
Abstract: 1,148,947. Tunnels &c. COMMERCIAL SHEARING & STAMPING CO. 17 Oct., 1966 [12 Nov., 1965], No. 46385/66. Heading E1F. An arcuate tunnel liner plate has flanges 11, 12 on all four sides and a layer 13 of foamed elastomer on the outer face of each flange. The flanges consist of channel members fixed to an arcuate plate 10 and provided with spaced holes 15 to receive bolts for fixing adjacent liner plates together. Washers on the bolts have elastomer sealing surfaces so that when secured in place, the liner is waterproof. Strengthening members 18 may be welded between flanges 11 to take the thrust of jacks moving the excavating head.
Patent GB-1318955-A (GB)
Title: Fuel supply system for an internal combustion engine
IPC: F02M9/133
Filed: 1970-09-30
Abstract: 1318955 Spray carburetters COMPAGNIA ITALIANA WESTINGHOUSE FRENI E SEGNALI 30 Sept 1970 [24 April 1970] 46458/70 Heading F1B A fuel system for an I.C, engine includes a carburetter having a restrictor 34, Fig.2, movable axially along a support rod against the action of spring in response to the incoming air flow. The axial movement of the restrictor varies the values of suction signals delivered through passages 20, 20', 20" into annular space 16; the resultant of these signals being utilized in a control passage 60 of a fluidic regulator 56 to control the amount of fuel delivered through output branch 64 and line 66 to main jets (28, 28'), Fig.1 (not shown), in the wall of a transverse tube 22. A second control passage 58 receives through line 72, a reference pressure signal originating at conduit 40, During warm running of the engine a valve 74 delivers the reference signal to the passage 58 via a calibrated restriction 78, but for cold starting the valve 74 is positioned so that the restriction 78 is by-passed whereby the mixture is enriched. On rapid opening of throttle valve 14, the inertia of restrictor causes a time lag during which an enriched mixture is supplied for prompt response by the engine. Fuel is delivered from a tank 50 through a filter 54 to the regulator 56 by a pump 52. Surplus fuel is returned to the tank through line 68. A line 80 delivers fuel through calibrated restrictor 82 to progression line 86 and idling line 84 having an adjustable restrictor 84'. Passage 46 and line 88 drain off any fuel droplets from the region of tube 22 during idling. Air delivered through lines 90, 92 is used to emulsify the main fuel and the idling and progression fuel. The number and arrangement of the passages 20, 20', 20" and the contour of the restrictor 34 may be varied. For example the restrictor 34 may have an elliptical or polygonal cross-section and be arranged to rotate upon axial movement along its support rod, e.g. by providing a helical guide along the rod.
Patent GB-949025-A (GB)
Title: Improvements in forced recirculation steam generators
IPC: F22B37/70
Filed: 1962-12-11
Abstract: 949,025. Forced flow steam boilers. H. VORKAUF, and LA MONT INTERNATIONAL ASSOCIATION Ltd. Dec. 11, 1962 [July 27, 1962], No. 46669/62. Heading F4A. In a forced recirculation boiler having a plurality of circulating pumps 3, the pumps discharge through respective pipes 4 into a common mixing vessel 5, the boiler feedwater supply also entering the vessel through a pipe 6 fitted with a perforated end piece 8. The streams of circulating water and the feedwater mix thoroughly in the vessel 5 and pass to a header 1 whence the water at even temperature flows into the evaporating tubes 2. In a modification, Fig. 2, the vessel 5 is dispensed with, a mixing chamber being formed within the distributer header 1<SP>1</SP> by a longitudinal perforated plate 7 and an end plate 7<SP>1</SP>. Feedwater enters through a pipe 6 and flows through the perforations in the plate 7 to mix with the circulating water entering through pipes 4.
Patent GB-1531976-A (GB)
Title: Thermoplastic graft copolymers
IPC: C08G81/00
Filed: 1975-11-12
Abstract: 1531976 Grafting pre-formed polymers E I DU PONT DE NEMOURS & CO 12 Nov 1975 [13 Nov 1974 (3)] 46738/75 Headings C3K C3M C3P and C3R Graft copolymers are formed by reaction between (A) a trunk copolymer of at least two polymerizable monomers, at least one of which contains amine-reactive sites selected from an anhydride group, a vicinal pair of carboxyl groups and a carboxyl group adjacent to a C 1-20  alkoxy-carbonyl group, and at least one of which is free from such sites and (B) at least one side-chain polymer (from a given list) containing one primary or secondary amine group, the remainder of said polymer being substantially unreactive with said amine-reactive sites. Reaction between (A) and (B) may be effected in the melt or in solution, and more than one (B) reactant may be used so as to form a product with different side-chains. In examples, the following reactants are used:- trunk co-polymers: ethylene/maleic anhydride, ethylene/monoethyl maleate, ethylene/monobutyl itaconate, ethylene/methyl acrylate/monoethyl maleate, ethylene/vinyl acetate/maleic anhydride, ethylene/ethyl acrylate/allyl acrylate/ maleic anhydride, ethylene/ethyl acrylate/ethylene diacrylate/maleic anhydride, ethylene/vinyl acetate/monomethyl maleate, ethylene/3- methylbutene/maleic anhydride, styrene/maleic anhydride, ethyl acrylate/maleic anhydride, ethyl acrylate/monoethyl fumarate, ethyl acrylate/butyl acrylate/monoethyl fumarate, and EPDM(maleic anhydride adduct; and sidechain copolymers (all amine-terminated): various nylons derived from caprolactam or laurolactam or mixtures thereof, polyethylene oxide, polypropylene oxide, polypivalolactone, polystyrenes polymethyl methacrylate used alone, and the following used in sequence: polycaprolactam + polyethylene oxide, polymethyl methacrylate + polyethylene oxide, polystyrene + polyethylene oxide, and polymethyl methacrylate + polystyrene. Applications.-The above products may be blended with other materials for various purposes. In Examples, (34-35) grafts from nylons and ethylene/vinyl acetate/maleic anhydride or ethylene/3-methylbutene/maleic anhydride copolymers are added to hydrogenated wood rosin ester to form adhesives; (40) a graft from ethylene/3-methylbutene/maleic anhydride and polyethylene oxide is blended with polypropylene, and the blend melt spun to form an anti-static fibre; (45, 48-51) blends are formed of PVC and grafts of ethylene/vinyl acetate/maleic anhydride copolymer with polymethylmethacrylate; and (69 and 71) blends are formed of polyethylene, nylon-66 (or polycaprolactam), and grafts from ethylene/maleic anhdride copolymer and polycaprolactam.
Patent GB-1119727-A (GB)
Title: Improvements in or relating to the manufacture of toilet seats
Inventor: SMITH KENNETH EDMOND
IPC: B29C41/04
Filed: 1965-11-06
Abstract: 1.119,727. Closet seats. ROBERT McARD & CO. Ltd. 18 Jan., 1967 [6 Nov., 1965], No. 47134/65. Heading E1C. [Also in Division B5] Toilet seats are moulded by centrifugal and/or gravitational forces in a two part mould, preferably divided in the plane of the seat undersurface and on which surface integral spacing buffers or ribs may be moulded in situ. into which mould thermoplastics powder e.g. polyethylene or polypropylene, or a plastisol is placed and which is then heated to a temperature of 150-200‹C whilst simultaneously being rotated about at least two axes at right angles. The mould is rotated whilst being cooled. The seat is formed with a hollow cross section at least at the parts thereof of greater overall thickness.
Patent GB-1158298-A (GB)
Title: Improvements in and relating to Contact Carbon Bushes and Equipments Comprising such Brushes.
IPC: H01R39/58
Filed: 1967-10-17
Abstract: 1,158,298. Brushes for dynamo-electric machines. CELLO-PAK A/S. 17 Oct., 1967 [18 Oct., 1966], No. 47270/67. Heading H2A. A carbon brush has embedded therein, at the limit of permissible wear, an insulated conductor 4, so that when the brush wears away as far as the conductor, the insulation on the latter is eroded and contact is effected from the brush through a slip ring 2 to the conductor and thence through a relay 5 to a source of supply, so that the relay operates and either provides remote indication that the limit of brush wear has been reached or else switches off the supply to the machine on which the brush is mounted. In an alternative arrangement the conductor 4 is replaced by an insulated conductive foil mounted on the surface of the brush.
Patent GB-1018132-A (GB)
Title: Improvements in or relating to the formation of coatings on germanium bodies
Inventor: WILKES JOHN GEORGE
IPC: C23C8/16
Filed: 1963-11-29
Abstract: A GeO2 coating having a tetragonal crystal structure is formed on unmasked areas of a Ge body, the mask comprising an oxide of silicon which is finally removed.  The Ge body is coated with SiO2 by passing a stream of argon containing tetra-ethoxy silane over the body heated to 600-700  DEG C.; parts of the coating are masked with a resist; the unmasked SiO2 coating is removed with hydrofluoric acid, exposing the Ge base; the resist is removed and the body heated in a pressure vessel containing a water and oxygen atmosphere having an initial pressure of 30-150 kg./cm.2 to form the GeO2 coating as described in Specification 1,018,132, after which the SiO2 mask is removed as before.  The SiO2 may be replaced by silicon monoxide deposited by an evaporation technique and largely converted to SiO2 during heating.
Patent GB-1418812-A (GB)
Title: Temperature control for electrically heatable window
IPC: B60S1/02
Filed: 1973-10-12
Abstract: 1418812 Heated windscreen SIERRACIN CORP 12 Oct 1973 [13 Oct 1972] 47729/73 Heading H5H To avoid breakage during handling, a thermal switch 28 controlling a heated windscreen is mounted in thermal contact with a power supply lead 17 (e.g. a bus-bar) at a position beyond the edge of the windscreen. As shown, the heated screen comprises a carrier film 24 of polyethylene terephthalate to which a transparent resistive film is applied, sandwiched between a pair of polyvinyl butyral interlayers 23 which are bonded to external glass sheets 22. The film conductor is divided into two halves by a vertical scribe line (Fig. 1, not shown) and is supplied from two phases of a three phase alternator (the third phase supplying the rear window) by three bus-bars, two of which extend in contact with both halves of the conductor and the other of which extends over half of the conductor. The three bus-bars have leads 11, 17 and 14 separated by scribe lines by which they are connected to alternator 27. One of them preferably has an increased resistance section formed as shown by reducing its cross-sectional area at 32; or by inserting a high resistivity material, e.g. nichrome, chromel or Inconel, in the copper bus lead so that the heat dissipation in that section of the lead approximates to that in the windscreen. The thermal switch 28, which is mounted in thermal contact with this section thus senses the same temperature as in the screen. Alternatively by utilizing the known relative power dissipation characteristics of the bus lead 17 and the heated screen, the operating temperature of the switch 28 may be set to take account of the temperature difference between bus lead 17 and screen. Where the thermal environment of the screen and bus lead 17 differ a heat sink may be mounted on the thermal switch or adjacent the lead 17 to equalize the thermal environment. The important feature, namely that the thermal switch lies outside the edge of the screen is achieved by providing the bus lead connecting portions in a tab 12 which comprises a pair of flexible plastics sheets 26 sandwiching the projecting bus leads 11, 17 and 14 and extending between the interlayers 23 to the edge of carrier 24.
Patent GB-1442831-A (GB)
Title: Ploughs for winning mineral
IPC: E21C27/34
Filed: 1973-10-12
Abstract: 1442831 Mineral-mining ploughs GEWERKSCHAFT EISENHUTTE WESTFALIA 12 Oct 1973 [14 Oct 1972] 47793/73 Addition to 1188254 Heading E1F The present plough involves modifying the plough of Specification 1188254 by now supporting the arcuate shaped, movable, floor cutter-carrying members 21 of the plough on the central section 10 instead of the end sections 12 of the articulated sword plate of the plough.
Patent GB-1399534-A (GB)
Title: Automatic cassette changing mechanism for a tape recorder or reproducer
IPC: G11B15/68
Filed: 1972-10-20
Abstract: 1399534 Cassette changers PIONEER ELECTRONIC CORP 20 Oct 1972 [26 Oct 1971 (3)] 48518/72 Heading G5R A magazine 2 containing a plurality of cassettes A1, A2, ... standing on edge one behind the other is moved towards and away from an upright tape deck 3 so that the foremost cassette A1 is carried over a cassette-discharge aperture 27, 28 into engagement with the deck 3 but on withdrawal is allowed to drop through the aperture. As shown, release of a solenoid 23, Fig. 2, allows springs 26 to pull the magazine 2 towards the deck 3 so that a lever 20 leaves a stop 22 and allows spring 13 acting on a plate 12 to push the cassettes forward in the magazine. Pins 17c moving in inclined slots 18a, Fig. 1, withdraw claws 17a from the magazine, and the foremost cassette A1 is pushed against the front 2d of the magazine and then engaged with the deck 3. A solenoid 11, Fig. 6, brings a magnetic head 7 and a pinch roller 8 into operation for recording or playback and also, through levers 34, 36, causes a plate 30 to push any previouslydischarged cassette off a platform 29 on to guide pins 31, Fig. 1. On release of solenoid 11 and re-energization of solenoid 23, the magazine 2 is withdrawn from the deck 3 and the claws 17a are inserted behind the foremost cassette A1 which is released to drop through the aperture 27, 28 on to the platform 29.
Patent GB-1077448-A (GB)
Title: A process for the production of xanthophyll containing materials from pyrethrum residues
IPC: A23L1/275
Filed: 1964-12-01
Abstract: Xanthophyll is made by alkaline saponification of its esters contained in the waxy residues from pyrethrum extracts.ALSO:Feedstuffs, especially poultry feeds, and foodstuffs contain as colouring agent, xanthophyll obtained by alkaline saponification of the waxy residues of pytethrum extracts.  Specified foodstuffs are cheeses, margarine, salad dressings (e.g. French dressings), prepared cake mixes and carbonated beverages.