baber/WOPTO huggingface dataset:
Patent GB-1136739-A (GB)
Title: Drill bit for the hydraulic jet drilling of wells
IPC: E21B7/18
Filed: 1966-12-13
Abstract: 1,136,739. Boring earth &c. GULF RESEARCH & DEVELOPMENT CO. 13 Dec., 1966 [27 Dec., 1965], No. 55772/66. Heading E1F. A drill bit for the hydraulic jet drilling of wells comprises a body 18 rotated on drill string 16 and formed with chamber 40 closed by plate 34 which is protected by an abrasion-resistant plate 46, there being nozzles 50 passing through plates 34, 46 at various angles. Thus an abrasive-laden liquid supplied down the string to the nozzles will cut a central hole, an outer groove larger than the body, and one or more intermediate grooves. Stand-off bars 48 ensure the jets are at an optimum distance from the bottom of the bore, and also physically engage and break the ridges left between the grooves. The abrasive liquid carries the cut and broken material into the borehole around the string, V-shaped recesses 44 facilitating its passage, to the surface where it is treated and re-used. The nozzles 50, plate 46 and bars 48 may be of tungsten carbide.
Patent GB-1358438-A (GB)
Title: Process for the manufacture of a semiconductor component or an  integrated semiconductor circuit
IPC: H01L21/205
Filed: 1971-12-01
Abstract: 1358438 Semi-conductor devices SIEMENS AG 1 Dec 1971 [1 Dec 1970] 55853/71 Heading H1K A semi-conductor layer 12 is deposited directly on an insulating substrate 2 only where it is required for a finished component or integrated circuit. The rest of the substrate surface is masked so that whereas the layer 12 deposits as monocrystalline material the semi-conductor material 13 depositing on the mask is polycrystalline and porous, allowing the mask to be subsequently removed, together with the polycrystalline material 13, by etching. The mask may be of SiO 2 , Si 3 N 4  or metal, the latter being useful in facilitating heating of the substrate by absorption of radiation when the semi-conductor material 12, 13 is to be deposited by high vacuum vaporization. In the form shown the mask comprises a layer 8 of SiO 2  overlying a layer 7 of Si 3 N 4 , the latter being retained flush with the semi-conductor material 12 in the finished structure. Other methods of depositing the semiconductor material 12, 13 are cathode sputtering and deposition from a gaseous semi-conductor compound. The semi-conductor 12, 13 may be Si, Ge or GaAs, the substrate 2 being magnesium oxide, beryllium oxide, spinel or sapphire.
Patent GB-1215016-A (GB)
Title: Method of desensitizing fertilizer grade ammonium nitrate and the product obtained
Inventor: PORTER SAMUEL JOHN
IPC: C05C1/02
Filed: 1967-12-14
Abstract: 1,215,016. Stabilizing ammonium nitrate. S. J. PORTER. 14 Dec., 1967, No. 56768/67. Headings C1A and C1B. A flame- and detonation-stable fertilizer grade NH 4 N0 3  having a N content of at least 33% is an integral, intimate and uniform mixture comprising 5-10% of an ammonium o-, m-, pyro- or poly-phosphate, up to 35% of which may be replaced by KCl or (NH 4 ) 2 SO 4 , and may be obtained by adding the phosphate (&c.) to the ammonium nitrate, a liquid phase being developed at some stage during the mixing process. Various procedures described are (a) crystallization of the product from a mixture obtained by adding ammonium phosphate, solid or as a concentrated solution, to an ammonium nitrate solution; (b) spraying a similar mixture in a prilling tower; (c) adding ammonium phosphate, solid or concentrated solution, to molten ammonium nitrate immediately after formation but before further treatment; (d) spraying a powder or a hot concentrated solution of ammonium phosphate on to a moving belt carrying ammonium nitrate as a melt or as crystals or prills; and (e) adding dry phosphate to moistened nitrate in a mixer, mixing and drying.
Patent GB-1356099-A (GB)
Title: Bonded fibre products
IPC: D04H1/00
Filed: 1969-11-20
Abstract: 1356099 Bonded fibre laminates E F NEVILLE 19 April 1971 [20 Nov 1969 27 Nov 1969] 56779/69 and 58056/69 Heading B5N [Also in Divisions D1 and B2] A laminate comprises a continuous layer of synthetic polymer fibres of less than # inch length, preferably 1/16 to “ inch, held in a coherent mass of intermingled fibres by a bonding medium and attached solely by adhesive means to a non-metallic backing other than fibres bonded together, the bonding medium extending throughout the thickness of the layer. The fibres may be waste nylon, rayon or acrylonitrile plus some wool or cotton. The binder is a natural, acrylic or other synthetic latex and may be vulcanized. The backing may be a foamed sheet, a woven or knitted fabric or a paper sheet. The laminate may be embossed. Preferably the laminate is produced by the apparatus claimed in Specification 1,356,100. In the embodiment of Fig. 1 the fibres are conveyed by duct 13, passed through a vibrating sieve 15 and collected upon a backing carried on conveyer belt 10. Resin is sprayed by guns 14 arrayed or reciprocated transversely across the conveyer and the fabric calendered between rolls 16, 17. Heaters may be stationed between the calender 16, 17 and take up roll 20. A coating of foam latex may be applied to the resin-fibre layer or to the backing and excess foam removed by a doctor blade. In the embodiment of Fig. 5 the fibres are air laid from hopper 40 through vibrating sieve 41 on to a backing placed on moving platform 33. Resin is applied by reciprocating spray 44. The laminate may be embossed by plate 51.
Patent GB-1212928-A (GB)
Title: Typewriter or like printer
IPC: B41J29/50
Filed: 1968-12-02
Abstract: 1,212,928. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 2 Dec., 1968 [9 Jan., 1968], No. 57057/68. Heading B6F. In a typewriter in which the letter-spacing may be either one of two different pitches the margin stop mechanism is coupled to the escapement rack so that the stops may be set accordingly. As shown a spherical type-head 12 is mounted for relative movement to a platen 11 and is mounted on a carrier 13 having an escapement pawl 17 co-operating with a double toothed rack 16 and a projection 64 for engagement with a margin stop 41. The teeth 25, 26 on the rack 16 may be set so that one series of teeth co-operates with the pawl 17 by the operation of a letter-space-setting lever 35 having an over dead-centre biasing spring mechanism 30, 32. Movement of the lever 35 is transmitted via linkage 85, 83, 84 so that an elongated bail 81 moves transversely from the position shown in full, to the dotted line position. The bail 81 is positioned below a double toothed rack 42, the teeth 51, 56 corresponding to the two different letter-spaces. Slidably mounted on the rack is the margin stop assembly 41 including a control member 43 and a double pawl 67 with pins 65, 66 for respective engagement with the teeth 51, 56. The pawl is biased into engagement with the respective side of the rack 42 by an overcentre spring mechanism 71 according to the setting of the bail 81. To set the margin stop the control member 43 is pressed inwardly to release the pawl 67 by engagement of pins 99, or 73 according to how the pawl 67 is set and moved sideways to reposition the margin stop assembly 41 on the rack 42.
Patent GB-1172419-A (GB)
Title: Polyester Accelerators
Inventor: RUDOLPH HANS
IPC: C08F283/01
Filed: 1967-12-15
Abstract: 1,172,419. Coating. FARBENFABRIKEN BAYER A.G. IS Dec., 1967 [16 Dec., 1966], No. 57070/67. Heading B2K. [Also in Division C3] Substrates are coated with a material which hardens at ambient temperature on addition of a hydroperoxide polymerization catalyst and which comprises in admixture (i) an unsaturated polyester, (ii) an ethylenic monomer copolymerizable therewith, (iii) a cobalt accelerator and (iv) an additional accelerator consisting of a mono- or diester of acetoacetic acid with benzyl alcohol or a mono- or polyhydric alcohol that has a straight or branched, saturated or unsaturated carbon chain with up to six carbon atoms substituted by at least one hydroxyl group that remains unesterified by acetoacetic acid or by at least one dialkylamin, N-morpholin or alkoxy group. In the Examples a wood veneer which has been bleached and primed with nitrocellulose (butanol-moist), ethyl acetate, butyl acetate and cyclohexanone hydroperoxide is coated.
Patent GB-1361358-A (GB)
Title: Resistance-typ temperature sensor
IPC: G01K7/18
Filed: 1972-12-15
Abstract: 1361358 Temperature sensors VYZKUMNY USTAV ORGANICKYCH SYNTEZ 15 Dec 1972 [15 Dec 1971] 57960/72 Heading H1K A temperature sensor is made by weaving a temperature sensitive resistance wire with electrically non-conductive fibres to form a fabric, sandwiching this between further sheets of fabric and encapsulating the composite structure in resin. In the described embodiment, Fig. 2, platinum wire of À043 mm. diameter is woven with glass warp and weft fibres of .08 mm. diameter, the wire forming a serpentine the ends of which are connected to contacts of thicker platinum wire or, as shown, platinum foil 3 at the edge of the fabric. The fabric and platinum foil contact strips are mounted within a glass fabric frame which is disposed between glass fabric sheets 7, 8, the latter being provided with apertures at 9 which allow attachment of connectors 5 while preventing the contacts being pulled out. The assembly is coated with silicone resin, bent to the required form and the resin cured under high temperature and pressure. Two or more resistance wires may be woven into the same sheet of fabric and/or several sensors mounted on one another and moulded into a unit by the curing step.
Patent GB-1321936-A (GB)
Title: Self-service food warmer
IPC: A47J39/02
Filed: 1971-12-14
Abstract: 1321936 Dispensing food BARBECUE KING INC 14 Dec 1971 [14 Dec 1970] 58083/71 Heading A4T [Also in Division F4] A self-service food warmer comprises uprights A supporting shelves B each having, together with lower shelf 25, an electric heater D within it. The shelves may be adjusted to be horizontal or forwardly sloping by means of removable screws C connecting with the uprights, the heating and cables from controls switch on the top F and at 37 are led through the hollow uprights which may have extensions or support in grooves 26, 27 glass walls G partially surrounding the shelves with a front and/or rear opening or a front door. Top F also carries heating lamps I. Frozen food is placed on racks 29 in a base oven 28 heated by electric heater 31 and blowers 32, and when at a required temperature the food is maintained at this temperature by being transferred to the shelves B. (For Figure see next page)
Patent GB-1115760-A (GB)
Title: Precipitation hardenable tantalum base alloy
IPC: C22C27/02
Filed: 1966-12-29
Abstract: A precipitation-hardenable Ta-base alloy consists, by weight, of W, optionally with Mo and/or Re, in a total amount of 7-10%, the W content being at least 5%, Re when present not exceeding 3%, and Mo when present not exceeding 2%; Zr 0.25-1%, with the proviso that all or part of this element may be substituted on an atom-to-atom basis by Hf (which may thus range from 0.5-2%); nitrogen 0.04-0.1%; Ta balance except for impurities.  The latter may comprise C, oxygen, Si, Fe and S in a total amount less than 0.1%: C and oxygen should each not exceed 100 p.p.m., and preferably their combined total should not exceed this amount. Precipitation-hardening is effected by solution-treatment for one hour at 1700 DEG -2000 DEG C., quenching to room temperature e.g. in He, and ageing for one hour at 800 DEG -1325 DEG C.
Patent GB-1348390-A (GB)
Title: Pressure-sensitive record material
IPC: B41M5/10
Filed: 1971-12-15
Abstract: 1348390 Pressure-sensitive record sheets NATIONAL CASH REGISTER CO 15 Dec 1971 [6 Jan 1971] 58253/71 Heading D2B A pressure-sensitive record sheet comprises a substrate having a coating of polymeric film material which includes minute, encased droplets of marking liquid and binder material for binding the encased droplets to each other and the substrate, free spaces being left in the binder material such that the coating may be compressed on application of pressure to a first stage without release of marking liquid and then to a second stage with release of marking liquid. The droplets may or may not be encapsulated. The voids in the binder material may be caused by the addition of hollow spherical particles, polymeric foam, or by forcing gas e.g. air into the material. The coating may include fillers such as siliceous materials, asbestos fibres, polymeric fibres, starch granules, expanded or unexpanded polymeric micro-beads, and cellulosic fibres. Conventional binder materials may be used. The marking liquid may be an ink, chromogenic dye e.g. CVL containing liquid, or chromogenic dye developer e.g. phenolic resin containing liquid. The latter two liquids may be encapsulated and incorporated in the same coating to provide a "self-contained" sheet. Alternatively, the chromogenic dye and its developer may be coreacted using separate sheets. The developer may be applied only to portions of sheets where it is desired to have an image appear. The coating may be multi-layered, one layer containing an ink of a different colour from that of another layer. An intermediate layer of ink-resistant material, e.g. polyvinyl alcohol for oil-based inks, may be provided between the two layers. In this way, it is possible to obtain one colour on the uncoated surface of the coated sheet through migration of ink through the substrate, and a different colour on a separate copy sheet. An opaque overcoat may be applied to the coating on the substrate for masking purposes. The marking fluid may contain a magnetic or fluorescent substance. The substrate may be made of paper, polyethylene terephthalate film, a glass fibre felted sheet, or polystyrene synthetic paper.
Patent GB-1394960-A (GB)
Title: Deep drawing of rinsing tables
IPC: B21D22/24
Filed: 1973-12-17
Abstract: 1394960 Deep drawing sink unit tops SMG SUDDEUTSCHE MASCHINENBAU - GmbH 17 Dec 1973 [18 Dec 1972] 58286/73 Headings B3A and B3R A sheet metal sink with two basins is made by applying fluid pressure to pre-draw the basins in one direction and then reverse drawing them hydro-mechanically. The metal sheet 7 is clamped by a holder 9 against a block 1 having two chambers filled with fluid 2 through a non-return valve 3. At least one piston 8 pressurizes the fluid 2 to pre-draw the basins, Fig. 1, after which they are reverse drawn, Fig. 2 (not shown), by upper dies 10 having lubrication ducts 11. During reverse drawing, the sheet 7 slips beneath the holder 9 except at the web 5.
Patent GB-1216090-A (GB)
Title: Semiconductor devices
IPC: H01L23/473
Filed: 1967-12-22
Abstract: 1,216,090. Electroluminescence. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 Dec., 1967 [28 Dec., 1966], No. 58418/67. Heading C4S. [Also in Division H1] A radiation emitting diode is provided with means for cooling the surface through which the radiation is emitted. Cooling the region through which the radiation passes shifts the absorption characteristic to lower wavelengths. In a first embodiment, Fig. 1 (not shown), one face of a body of semi-conductor material containing a PN junction is placed in contact with a large transparent block of alumina or beryllia. The region of the device contacted by the block is lightly doped and the junction is provided by diffusing a more highly doped region of the other conductivity type into the opposite face of the wafer. The cooling block may be smaller in size and provided with fins. In a second embodiment, Fig. 3, a body 1 of semi-conductor material, having a diffused region 3 forming a PN junction 2 with the bulk 4 of the body which is lightly doped, is mounted in a housing so that the face 7 of the body 1 through which the radiation is emitted is cooled by means of a liquid flowing within a transparent quartz cover 9. A reflecting surface 5 is deposited on the diffused region 3 and is contacted by a silverplated copper pin 12. The edge of the body 1 is soldered to a nickel-copper bush 6 forming the second electrode of the diode and to which the cover 9 and conduits 11 are attached by means of epoxy resin 10. The cooling liquid may be methylene iodide. The cover 9 may be provided with fins which may be arranged to prevent the liquid from circulating in which case it is cooled by the fins. The semi-conductor body may be of GaAs.
Patent GB-1256080-A (GB)
Title: Improvements in or relating to a gas discharge device
IPC: H01J11/12
Filed: 1968-12-10
Abstract: 1,256,080. Gas discharge matrix displays. OWENS ILLINOIS Inc. 10 Dec., 1968 [19 Jan:, 1968], No. 58506/68. Heading G5C. A gas discharge device comprises a display and memory panel including a crossed array of external conductors 12, 13 on dielectric members 14, 16 enclosing an ionizable gas, means 29 for supplying a periodic alternating sustaining voltage to the conductors means 60 for producing unidirectional pulses of relatively short duration compared to the sustaining voltage cycle, and an addressing circuit 61 acting to add a first of the unidirectional pulses to the sustaining voltage to ignite a discharge and to add a subsequent pulse to stop the discharge. On ignition wall charges collect on dielectric surfaces 17, 18 and produce a field opposed to the applied sustain voltage V s . Write or erase D.C. pulses are supplied to selected conductor pairs to actuate desired gas cells of the panel; these pulses are superposed on the sustain voltage. The erase effects are obtained by suitably modifying the wall charge by modifying in turn the slope of the net applied voltage waveform. As described, addressor 61 operates through pulse generators 60-12 and 60-13, each comprising a transistor switch (Q 2 ) in series with the diode-shunted primary of a transformer (T 1 ) whose secondary (42) supplies the required high voltage actuating pulses, Fig. 2 (not shown). Three modes of modifying the waveform to extinguish a "cell" are disclosed, Figs. 5-7 (not shown).
Patent GB-1311708-A (GB)
Title: Headbox in particular for a paper-making machine of other machine
IPC: D21F1/00
Filed: 1970-12-11
Abstract: 1311708 Headboxes J M VOITH GmbH 11 Dec 1970 [13 Dec 1969] 59166/70 Heading D2A A headbox comprises a discharge nozzle 20 defined by lips 21, 22 supported by walls 1, 2 each of which has at least a portion formed as a hollow beam having disposed within it a loads relief beam, and a pressure chamber between the beams which can be pressurised, e.g. with water, so that the loading on the wall due to the pressure in the headbox is transmitted to the load relief beam. The wall 1 is adjustable by means 5 and the associated load relief beam 10 is separated from the wall by the pressure chamber 12. The wall 2 has two portions formed as hollow beams 30, 31 which have associated load relief beams 32 separated from the wall by pressure chambers 34. The ends of the beams 32 are connected to the wall 2 by welding or flexible tie plates, Figs. 2 and 3 (not shown), and spacers 38, 39 are provided so that in the event of failure of pressure in the chambers 34 the wall 2 is supported directly on the beams 32. The headbox has an inlet chamber 6, an overflow trough 9 and perforated rollers 7.
Patent GB-1234870-A (GB)
Title: Container applicator
Inventor: SCHWARTZMAN GILBERT
IPC: B65D47/10
Filed: 1969-12-08
Abstract: 1,234,870. Reservoir pads. G. SCHWARTZMAN. 8 Dec., 1969, No. 59804/69. Heading A4K. A liquid applicator comprises an airtight container 16 of plastics material integral with an annular flange 14 which retains a pad of resilient material in position, said container having a frangible portion 18. A closure cap 34 is provided with a projection 39 which is used to pierce the pad and frangible portion 18 when it is desired to use the applicator. In two further embodiments (Figs. 4-6, not shown), the end wall of the container is provided with a plug (118, 218) which is either pushed into the container by a projection on the closure cap or by pressure on the resilient pad.
Patent GB-1330029-A (GB)
Title: Surface-modified cellulose
IPC: D06M15/61
Filed: 1971-12-23
Abstract: 1330029 Nitrogen-containing salts of cellulose acids PROCTER & GAMBLE CO 23 Dec 1971 [28 Dec 1970] 59984/71 Heading C3A An adsorbent material comprises a waterinsoluble cellulosic substrate having an anionic surface on which is chemisorbed at least 0À1% by weight of a nitrogen compound of either the general Formula I or the general Formula II In these formulµ R<SP>1</SP> is an alkyl or alkanoyl group of from 6 to 22 carbon atoms, R<SP>2</SP> is an alkyl or alkanoyl group of from 1 to 22 carbon atoms, R<SP>3</SP> and R<SP>4</SP> may be the same or different and are alkyl or alkanoyl group of from 1 to 4 carbon atoms, no more than one of the groups R 1 , R 2 , R 3  and R 4  being alkanoyl, X<SP>(-)</SP> is fluoride, chloride, bromide, iodide or hydroxide, y is an integer of from 1 to 4, z is an integer greater than 1 and R<SP>5</SP> is hydrogen or an alkyl or alkanoyl group of from 1 to 22 carbon atoms. In any one compound R<SP>5</SP> may represent more than one substituent group, but at least 5% of them must be alkyl or alkanoyl groups of from 6 to 22 carbon atoms. Disclosed cellulosic substrates are succinic acid ¢-ester (formed by reacting cellulose with succinic anhydride), phosphorylated cellulose, phosphatoethylated cellulose, sulphatoethylated cellulose and carboxymethyl cellulose. The exemplified embodiments are products obtained by reacting stearoylated polyethylenimine with phosphorylated, sulphatoethylated, carboxymethylated and succinated cotton.
Patent GB-1433950-A (GB)
Title: Method and apparatus for producing radiographs
IPC: G03C5/16
Filed: 1973-12-28
Abstract: 1433950 Producing radiographs EASTMAN KODAK CO 28 Dec 1973 [2 Jan 1973] 60063/73 Heading H4F A radiograph is produced by exposing a stimulable temporary image storage medium (such as an infra red stimulable phosphor or thermoluminescent material) to an X-ray image, scanning the medium with radiation (e.g. infra-red or heat) to stimulate the medium and cause emission of further radiation where the medium has been exposed to the X-ray image, and scanning a photosensitive element with radiation modulated as a functon of the further radiation emitted by the corresponding point of the stimulated image stcrage medium. The resulting radiograph may thus have a smaller format than the X-ray image and may for example be produced on microfilm. Preferably the further radiation comprises light in the visible, infra-red or ultra-violet ranges which is incident on an image intensifier whose modulated light output is scanned over photosensitive material in synchronism with the scanning of the image storage medium. The scanning may be effected by placing the exposed image storage medium and the photo-sensitive material on respective axially movable and rotatable drums, or on the flat beds of respective X-Y scanners. The Specification includes examples of phosphors which are transparent to their own emitted radiation and have the required image retentivity. The image intensifier may be replaced by a photo-multiplier tube, resulting video signal output being recorded on magnetic tape, displayed on a CRT the face plate of which is exposed to a microfilm or used to modulate a light source (e.g. visible or ultraviolet) which is scanned across the photosensitive recording material. Alternatively direct electron beam recording of the image on a film may be employed or the phosphor output may be recorded electrostatically with a discharge tube. Reference is also made to scanning the storage medium with infra-red or heat and collecting the emitted electrons to form a video signal which is displayed on a CRT and recorded.