baber/WOPTO huggingface dataset:
Patent GB-1115087-A (GB)
Title: Manufacture of cast press tools
Inventor: YOUNG EDGAR JAMES
IPC: B22D19/06
Filed: 1965-12-09
Abstract: 1,115,087. Composite articles. VAUXHALL MOTORS Ltd. 6 Oct., 1966 [9 Dec., 1965], No. 52278/65. Heading B3F. In producing a casting having specified areas required to be smooth, such as a cast press tool 18 having bolt holes or slots 2, sheet metal inserts 3 are embedded in a pattern made of a combustible material, e.g. expanded polystyrene, the pattern is invested in moulding sand and molten metal is poured to burn away the pattern and fill the mould cavity and solidify around the inserts 3. Tabs on the inserts assist in attaching them to the casting and holes may also be provided therein. In a modification, part or all of the pattern may be removed from the mould before pouring, the inserts 3 either being held in position by remaining portions of the pattern (Fig. 5, not shown), by wire sprigs (19), (20) (Fig. 8, not shown), or by fillets of the mould material formed around the inserts. Fig. 4 (not shown) shows a combustible pattern set in moulding sand (8) within a flask (9) and having a cope (11) on top provided with a splash basin (13), gate (12), a riser (15) and vents (16), (17). A runner (14) is provided in the top of the moulding sand (8).
Patent GB-1239790-A (GB)
Title: Poromeric material
Inventor: SEMENZATO DORINO
IPC: D06N3/00
Filed: 1968-11-05
Abstract: 1,239,790. Laminates. MONTECATINI EDISON S.p.A. 5 Nov., 1968 [7 Nov., 1967], No. 52293/68. Heading B5N. A poromeric material used as synthetic leather comprises a backing fabric and intermediate and outer foamed layers of vinyl chloride polymer containing immiscible polymeric material in the form of flakes or fibres, the intermediate layer being less foamed than the outer layer. A blowing agent and '' kicker " are used in lower percentage in the intermediate layer than in the outer layer. The backing fabric is a compact cloth, jersey or non-woven web and is of polyamide, cotton, cellulose, modified cellulose or wool fibres. The immiscible material is polyethylene, polypropylene, ethylene/propylene copolymer or epoxy resin. The foamed layers may also contain plasticizers, stabilizers, fillers and pigments. The material may be made by a transfer process using a release paper substrate.
Patent GB-1061140-A (GB)
Title: Improvements relating to the after-combustion of exhaust gases from internal combustion engines
IPC: F01N3/22
Filed: 1965-12-09
Abstract: 1,061,140. Treating exhaust gases. DAIMLER-BENZ A. G. Dec.9, 1965 [Dec. 10, 1964], No. 52309/65. Heading F1B. The supply of secondary air to exhaust gases prior to treatment in a catalytic device 4 is controlled by a temperature responsive device 9 so that the air is not admitted until a predetermined catalytic bed temperature is reached. The device 9, which may be a bi-metallic coil, controls a throttle valve 7 in the secondary air pipe 6 leading to an injector 10. The valve may start to open at e. g. 200C., and be fully open when a normal operating temperature of 240C., is reached. Alternatively the device 9 may control a secondary air pump.
Patent GB-1504558-A (GB)
Title: Pressure evaluation apparatus
IPC: A61F13/04
Filed: 1976-11-24
Abstract: 1504558 Sensing constrictive pressure of plaster casts etc R J P EVANS 24 Nov 1976 [22 Dec 1975 (2)] 52310/75 and 52311/75 Heading G1N(E) In a pressure sensitive device for determining the pressure exerted on areas of the skin by appliances such as plaster casts &c., an expansible and deflatable envelope 16, Figs. 1 and 4 is employed. Opposite surfaces 17 and 18 of the envelope each contain a grid also Fig. 3 (not shown) of electrical contacts 30, 32. The grids are in contact when the envelope is deflated. In use the envelope is slipped between the plaster cast &c. and the skin. The envelope is then slowly inflated by pumping a bulb 7 attached to a housing 1 containing a pressure gauge and a battery (3) Fig. 2 (not shown). The battery is connected in series with an indicator lamp 5 and the contacts 30, 32. Thus the lamp will eventually go out when the envelope has been sufficiently inflated. At this point the pressure within the envelope could be said to be equal to the pressure exerted by the plaster cast &c. This pressure may be measured by the gauge 2 which is connected to the envelope by a separate conduit 22, Fig. 2 (not shown) from a conduit (24) supplying the pressure from the bulb 7.
Patent GB-1528638-A (GB)
Title: Electrical resistance heating elements
IPC: F24F1/02
Filed: 1975-12-23
Abstract: 1528638 Electric resistance heaters FRITZ EICHENAUER 23 Dec 1975 [28 Dec 1974] 52715/75 Heading H5H A heating element for a fan heater comprises a resistance wire 1 formed into a meander in a series of parallel planes and supported by at least one plate 2, one of the bights, 12, being extended to provide a tapping point for a low voltage device (e.g. a fan motor of 12 or 24v.), the extended light 12 being retained in a further insulating plate 7 parallel to the plate 2. The extended bight is kinked at 14 and held between two coaxial, shaped, cooperating bushings 13, 15, the outer bushing being retained in aperture 11 in plate 7. A lead may be attached to a bushing or to a soldering tab retained on the plate 7 by the bushing. Two supporting plates 2 are apertured (at 3, 3 . . .) and the apertured plates pushed over the tips of the bights of the meander to support the wire. Plates 2 and plate 7 are maintained in position by spacers 5 at ends of the plates.
Patent GB-1286838-A (GB)
Title: Process for organic synthesis
IPC: C09K23/00
Filed: 1969-10-29
Abstract: 1286838 Reaction of immiscible reactants NEBRASKA ECONOMIC DEVELOPMENT DIRECTOR OF 29 Oct 1969 [28 Jan 1969] 53011/69 Addition to 1180103 Heading C2C In the synthesis of organic compounds from immiscible reactants one of which is soluble in water a transparent emulsion is formed in the presence of water and an emulsifying agent and the reaction is carried out between the reactants. The reactants may be liquid or solid and dissolved in separate solvents, with water as a solvent for the water-soluble reactant. The emulsifying agent may be in a concentration of 10 to 40% and the emulsion heated. Examples describe the preparation of sucrose esters, dihydroxy stearic acid, and an acetal of lauryl alcohol and dextrose.
Patent GB-1305474-A (GB)
IPC: G01L1/12
Filed: 1970-11-09
Abstract: 1305474 Measuring pressure and weighing electrically MEIDENSHA KK 9 Nov 1970 [3 Dec 1969 14 Oct 1970] 53110/70 Heading G1N [Also in Division H1] A pressure measuring device comprises a core of magnetic laminations 11 provided with holes 16a, 16b, 17a, 17b to accommodate an exciting winding 18 and a detecting winding 19 which are at 90 degrees to each other and 45 degrees to the load direction P, the core having a magnetic anisotrophy developed by cooling it from the Curie temperature say 600 C. at say 10 C. /hour in a hydrogen filled oven in the presence of a magnetic field supplied by a D. C. fed winding in the holes 16a, 16b.  The core has end plates 13a, 13b, and some of the laminations may be non-magnetic stainless steel to extend the load range Fig. 8, (not shown). In operation, load P distorts the flux pattern produced by the A.C. fed winding 18, thereby providing an output in winding 19. Fig. 11 discloses weighing arrangement utilising the device in a Royer inverter. The core has additional feedback windings 25a, 25b for the inserter, and an output is derived in winding 19 when stress occurs. The inverter is fed from a D.C. supply 27, and in a conveyor weighing arrangement, a rate of flow measurement is obtained by having this D.C. derived from a tachogenerator whose output is dependent on conveyer speed.
Patent GB-1338944-A (GB)
Title: Moulded foam plastics articles having zones of differing density
IPC: B29C44/04
Filed: 1971-11-16
Abstract: 1338944 Foamed moulded plastics BAYER AG 16 Nov 1971 [18 Nov 1970] 53118/71 Headings C3C and C3R [Also in Divisions B5] In a process of moulding a foamed plastics article having zones of differing density, a fibrous fleece, i.e. a non-woven fabric is inserted in a mould cavity and air is sucked therefrom before introducing a foam-forming reaction mixture into the cavity which reacts to form the foam. The fleece may comprise fibres of synthetic resin, metal, boron, carbon or glass and the reaction mixture may comprise a polyurethane, an epoxy resin, vinyl-formaldehyde resin or polyamide.
Patent GB-1333579-A (GB)
Title: Method and apparatus for simulating motion
IPC: G02B27/06
Filed: 1970-11-10
Abstract: 1333579 Animated displays PHOTOMOTION CORP 10 Nov 1970 [17 Nov 1969] 53439/70 Heading G5C In a display device, the effect that an object is seen to be moving, e.g. a circle rotating, is produced by placing a first transparent sheet having on one surface thereof uniformly spaced opaque dots at one frequency over a second transparent sheet having on one surface a pattern comprising areas of opaque dots at frequencies which mutually differ and which differ from said one frequency such that moirÚ patterns are formed, and moving one sheet with respect to the other to cause the moirÚ patterns to move. An apparent depth may be introduced into the display device by forming opaque dots on both sides of the second sheet in areas other than in the areas in which the pattern is formed, the frequency of the dots on one side of the sheet being slightly different than the frequency of the dots on the other side and both the frequencies being significantly different from and not a multiple of the frequencies of the dots on the first sheet and forming the pattern on the second sheet.
Patent GB-1430614-A (GB)
Title: Radiation sensitive scanning system
IPC: G06V10/12
Filed: 1973-11-21
Abstract: 1430614 Scanning system INTERNATIONAL BUSINESS MACHINES CORP 21 Nov 1973 [18 Dec 1972] 53978/73 Heading H4F [Also in Division G1] To compensate for variations in the sensitivities of the individual photo-diodes in a photodiode array, e.g. a self-scanned linear array 25 of photo-diodes analysing light reflected from a moving document 14, the array is initially arranged to scan a standard background or white level which may be in the form of a document or a bedplate, and the resulting sensitivity video signal which represents non-uniformity in sensitivity and in illumination is stored and used to correct subsequent video information signals. The integrated 30 sensitivity video signal has a fixed grey level signal from source 32 subtracted, 35, therefrom, is digitized in A-D converter 40 and stored in memory 50, e.g. a shift register. During scanning of an information document these stored signals are read-out from the memory 50, D-A converted, 55, and added, 60, to the fixed grey level signal from source 32, the difference between resulting sensitivity video signal and the serial video information signal being derived in differential amplifier 65 and then divided by the sensitivity video signal in circuit 70 to produce at output 75 a compensated serial video information signal which may be fed via a threshold circuit to a utilization system such as a recognition, reproduction or processing system. To compensate for photo-diode leakage current non-uniformity, correction signals derived by initially scanning a black level may also be stored and subsequently read-out. Memory 50 and converters 40 and 55 may be replaced by an analogue shift register.
Patent GB-1348811-A (GB)
Title: Production of schottky contacts
IPC: H01L23/482
Filed: 1971-11-22
Abstract: 1348811 Etching SIEMENS AG 22 Nov 1971 [27 Nov 1970] 54054/71 Heading B6J [Also in Division H1] One or more Schottky contacts are formed on one face of a semi-conductor body, e.g. of gallium arsenide by providing an insulating layer, etching this through a photoresist mask to expose contact sites, depositing a thinner layer of chromium over the insulation and exposed sites and then etching away the remaining insulation to remove the overlying chromium. Suitable materials for the insulating layer are silica, which may be etched with a specified aqueous solution of aluminium fluoride and hydrofluoric acid, and alumina, which is etched by 85% phosphoric acid or ammonium fluoridebuffered hydrofluoric acid. The layer is preferably sprayed on to a thickness of 100-500 nm. and annealed whereas the chromium is vapour deposited in vacuo to a thickness of 20-100 nm. Silica may subsequently be deposited to cover the chromium contacts and exposed semi-conductor, apertured over the contacts by etching through a photoresist mask and aluminium vapour deposited through a mask into the aperture to a thickness of 50-150 nm. Wires may be ultrasonically or thermocompression bonded to the aluminium and the body subdivided into single devices.
Patent GB-1410050-A (GB)
Title: Method of constructing a building
IPC: E04B1/35
Filed: 1972-11-23
Abstract: 1410050 Method of erecting buildings H R HOUDIN 23 Nov 1972 [26 Nov 1971] 54178/72 Heading E1S A method of constructing a building involves the steps of forming a rectangular framework 12, supporting same on posts at roof level, temporary supporting the roof trusses 20-26 on the framework, providing temporary protective sheeting 40 external of the periphery of the building to be erected to allow the walls 4 to be built and then allowing the roof loading to be transmitted to the walls by removing the framework 12. The protective sheeting may be transparent or translucent and is secured to posts 38 having inclined arms 39 fixed to the framework 12, the latter including beams of articulated construction to facilitate removal. The sheeting is also fixed to a framework along the end walls and anchored by means of cables for details of which together with minor details concerning the roof trusses, foundations, anchorages etc the Specification should be referred to.
Patent GB-1088344-A (GB)
Title: Control circuit
IPC: G05B19/04
Filed: 1965-12-21
Abstract: 1,088,344. Resistance welding circuits. SQUARE D. CO. Dec. 21, 1965 [Dec. 24, 1964], No. 54231/65. Heading H2H. A timing circuit particularly for timing operations of an electric resistance welder comprises a number of bi-stable stages incorporating NOR circuits equal to the number of operations, each stage incorporating a discharge resistor R8-R11 for a common capacitor C2 charged to a determined voltage, and arrangements to switch the stages sequentially at a determined discharge voltage. Capacitor C2 is charged through a unijunction transistor U1 which blocks when the capacitor has reached the source voltage of- 20 volts less the voltage drop of about 2 volts across U1 The capacitor C2 also receives a charge to balance leakage through a resistor R34. Closure of a switch SW1 causes the output of a NOR circuit N1 to become " 1 " hence N2 gives a "0 " output and N3 a " 1 " output. This energizes a welder solenoid 15 causing the electrodes to advance. The change of N2 output provides a positive pulse through a diode D4 to N4 which switches to provide a " 1 " output signal causing N5 to conduct and provide a " 0 " signal. The squeeze period is now timed by the discharge of capacitor C2 through resistor R8. When the potential across C2 falls to a determined value unijunction transistor U1 conducts to recharge it which causes N14 to switch and supply a " 0 " output which is passed through a lead 56 to a NOR circuit N16 (not shown) which gives a " 1 " output through lead 55 to N21, the " 0 " output signal from which switches N22 to a " 1 " output. A signal from a NOR circuit N24 (Fig. 2, not shown) through a lead 61 then causes N22 to provide a " 0 " output causing the positive charge of a capacitor C4 to be delivered through diode D5 to N5 to give a "1 " output which open circuits R8 and through a diode D6 to change over N6, N7 connecting the resistor R9 across the capacitor C2 timing the squeeze interval. The other resistors R10-R12 are similarly connected sequentially through bistable pairs N8-N13.
Patent GB-1472318-A (GB)
Title: Device for silencing gaseous flow in a duct
IPC: F01P11/12
Filed: 1974-12-23
Abstract: 1472318 Noise damping in blower air inlet ducts MASCHINENFABRIK AUGSBURGNURNBERG AG 23 Dec 1974 [22 Dec 1973] 55466/74 Heading B7B [Also in Division F1] Noise in a gas carrying duct 6, Fig. 1 (e.g. for supplying cooling air to a radiator 5 of an I.C. engine 3 of an omnibus 1) is absorbed by elements 8, 9, which each comprise a core 18, 19 of sound absorbent material (such as foam, glass wool or mineral wool) coated with a water and oil repellent material which itself is partly surrounded by a perforated metal sheet 28, 29 having a U-shaped cross-section. Each element 8, 9 is releasably mounted in one or two guide channels 10, 11.
Patent GB-1220889-A (GB)
Title: Electric vacuum-cleaner
IPC: A47L9/14
Filed: 1968-11-22
Abstract: 1,220,889. Vacuum cleaners. PHILIPS GLOEILAMPENFABRIEKEN N.V. 22 Nov., 1968 [27 Nov., 1967], No. 55552/68. Heading B1T. When the lid 7, 24 of an electric vacuum cleaner is shut as shown, it retains in place a support plate 13 integral with the end closure plate 10 of the dust bag 8, which communicates via a tube 11 with the inlet tube 22 of the cleaner. As described, plate 13 is retained in a chamber defined by walls 19, 20. To remove the dust bag, lid 7, 24 is opened and plate 13 is raised, tube 11 being removed through a slot 21 in wall 19, see Fig. 4. The base of the chamber may be open at 23 to allow leaked dust to fall out; or it may be provided with a rubber strip to catch the dust. Plate 13 is of guasi-trapezoidal cross-section (Fig. 4) and of wedge-shaped longitudinal section (Fig. 1).
Patent GB-1367142-A (GB)
Title: Bag settler for bag filling machines
IPC: B65B1/22
Filed: 1971-12-02
Abstract: 1367142 Vibrating bags during filling BLACK PRODUCTS CO 2 Dec 1971 [16 April 1971] 56057/71 Heading B8C A bagging machine comprises bag-supporting saddles 41 connected via bars 19 to a weighing mechanism 16, 17, the saddles being vibrated by reciprocating rods 40 connected to the saddles through double acting coil springs 55, 56 so as to minimize the effect of the vibration on the weighing mechanism. An arm 44 depends from each saddle 41 and is pivoted to levers 45, 50 pivoted to a plate 25 carried by the respective bar 19. The end of each lever 45 carries a collar through which a respective rod 40 passes, the springs 55, 56 being disposed between the collar 53 and nuts 57 on the rod 40. Yokes 38 on the rods 40 surround eccentric cams 37 keyed to a shaft 34 rotated by a motor 34. Hooks 21 on the bars 19 engage a floating frame 14 supported by leaf springs (not shown) on the frame of the machine. The floating frame 14 also supports a filling spout 13 connected to a hopper 12 by flexible tubing.
Patent GB-1195757-A (GB)
Title: Improvements Relating to Colour Television Receivers
Inventor: GRAY REGINALD EDWARD
IPC: H04N9/20
Filed: 1968-12-02
Abstract: 1,195,757. Colour television. BRITISH RADIO CORP. Ltd. 2 Dec., 1968, No. 57134/68. Heading H4F. Relates to apparatus for increasing the proportion of either red or blue in the displayed picture of a tri-gun colour television tube while leaving at least the green substantially unaffected, said apparatus comprising means for altering the D.C. voltage level applied to the red or blue guns without affecting that applied to the green gun, said three guns being supplied by a common D.C. voltage generator. As shown in Fig. 1 the apparatus comprises a resistance network, terminal 10 being connected to the output of the high-tension D.C. voltage generator and terminals 23, 24 and 25 being connected to the first anodes of the green, red and blue guns respectively. Since the potentiometer 20 is arranged to have a very much higher resistance than that of resistors 12 and 13, movement of the slider of this potentiometer, for example to the left, will cause the potential at point A to increase very much more than the corresponding decrease at point C. Hence movement to the left causes the first anode potential of the red tube to increase without substantially affecting that of the green and blue tubes. Fig. 2 (not shown) illustrates an alternative arrangement in which a centre-tapped potentiometer is employed in place of potentiometer 20.
Patent GB-1343504-A (GB)
Title: Acrylic fibre tow suitable for preparing carbonized fibre
IPC: D01F6/18
Filed: 1971-12-13
Abstract: 1343504 Carbon fibres TOHO BESLON KK 13 Dec 1971 [25 Dec 1970 (2)] 57814/71 Heading C1A [Also in Division B5] Carbon fibres are obtained by heating fibres of acrylonitrile copolymer at 2,500‹ C. for 2 hours in argon, after a heat treatment at 250‹ C. for 10 hours. The acrylonitrile fibres contain less than 5% by weight of a comonomer such as methylacetate. The fibres also contain from 10 to 50% by weight of moisture and, preferably from 0À1 to 1À0% of zinc.
Patent GB-1164030-A (GB)
Title: Improvements in or relating to Power Actuators for Power Actuated Waveguide Switches
Inventor: KING TERENCE EDWARD
IPC: H01P1/12
Filed: 1967-12-21
Abstract: 1,164,030. Waveguide switches. MARCONI CO. Ltd. 29 Aug., 1968 [21 Dec., 1967], No. 58085/67. Heading H1W. The rotor of a waveguide switch is actuated by a toggle which is driven between two extreme positions by a pair of solenoids acting through a pin-and-slot mechanism. The switch (not shown) may be of the kind comprising a stator in which four mutually perpendicular passages are selectively coupled in pairs by an internal rotor having two curved waveguide passages. The rotor is rotatable between two extreme positions 90 degrees apart and is mounted upon a shaft 6 to which is keyed a lever 7. A second lever 9, pivoted at 11, forms with the lever 7 a toggle which is movable between two extreme positions determined by adjustable stops 12. The toggle is driven by a pin-and-slot mechanism 18, 21, the slot 21 being arranged in a rocking plate 16 freely rotatable on the shaft 6. The plate is rocked by one or other of two solenoids 14 connected to a power supply by a two-way switch. As the toggle approaches its extreme position, it opens one or other of two normallyclosed limit switches 19 each connected in series with a respective solenoid 14, the effect being to open the circuit of the solenoid just energized and to set the circuit of the other solenoid. The lever 9 has an extension to facilitate manual operation.
Patent GB-1216350-A (GB)
Title: Fluid filter
IPC: B01D46/02
Filed: 1967-12-22
Abstract: 1,216,350. Gas filter. AMERICAN AIR FILTER CO. Inc. 22 Dec., 1967 [23 Dec., 1966], No. 58414/67. Heading B1T. [Also in Division D1] A gas filter is made up of at least one pair of vacuum-moulded sheets (Fig. 2, not shown) of rigid material with opposed furrows formed therein, which form a row of elongated pockets between each pair of sheets when the sheets are welded together, the edges 22 of sheet pairs at the inlet end of the filter being turned over and possibly welded to form a composite structure whose edges may be clamped in place in a housing (Fig. 1, not shown) by separate frames (9, 10). The sheets are stored separately and built up as required. Mouths 18 opening into each pocket have converging portions 23. The sheet material comprises 15-25% phenolic resin and a fibrous mixture which is made up of 15-30% heat-bondable fibres, such as polyester or a copolymer of vinyl chloride with acryloritrile or vinyl acetate, of diameter 16 to 20Á, 20-45% non- heat-bonding fibres such as nylon, Orlon or Dacron (Trade Marks), of diameter 10 to 60Á and 25-50% cellulosic fibre, such as cotton, wood pulp or alpha-cellulose, of diameter 10 to 20Á. The fibres do not exceed # inch in length.