baber/WOPTO huggingface dataset:
Patent GB-1522958-A (GB)
Title: Fabrication of semiconductor devices
IPC: H01L27/082
Filed: 1975-09-08
Abstract: 1522958 Semiconductor devices FAIRCHILD CAMERA & INSTRUMENT CORP 8 Sept 1975 [29 Oct 1974] 36831/75 Heading H1K In oxide-isolated semiconductor devices, in particular integrated injection logic devices comprising a lateral and a vertical complementary bipolar transistor, prior to the formation of an oxide in a groove 14, Fig. 5B, formed in a silicon epitaxial layer 12, Fig. 5D, on a silicon substrate 10 of a conductivity type opposite to that of the epitaxial layer 12, an impurity is selectively applied to the groove defining the device region so as to form in subsequent oxidation of the groove a guard ring 30, 32, 33 of a conductivity type opposite to that of the epitaxial layer in the device region everywhere along the interface of the oxide-isolation region and the device region except adjacent the base region of the lateral bipolar transistor and except adjacent the emitter contact of the complimentary vertical transistor. This is achieved by forming a selfaligned silicon-dioxide base mask 17 over the boundary of the base of the lateral transistor (PNP) with the groove and over the boundary of the groove with the emitter contact region of the vertical transistor (NPN) prior to the oxidation of the groove and diffusion of the guard ring P-type impurity. The emitter region (35), Fig. 6 (not shown) of the lateral PNP and the base region (36) of the vertical NPN are formed in a single ionimplantation step using standard photo-masking techniques. Similarly, collector regions (37a, 37b), Fig. 7 (not shown) and emitter contact region (38) of the vertical NPN are formed in a single ion-implantation or diffusion step, this being followed by further doping of P- type impurity in the emitter region (35) and the base region (36) to provide a heavily doped emitter region (35) and a base contact (40), Fig. 8 (not shown). In a modified integrated injector logic device, the base region of the vertical NPN comprises high concentration P-type sub-regions (61, 62, 63), Fig. 15 (not shown), alternated with low-concentration P- type sub-regions (65, 66) thereby improving the # of both the transistors. A buried region 11 of the conductivity type same as that of the epitaxial layer may be provided. It is stated that the guard ring optimizes the # of both the transistors. In place of an integrated injection logic device, FETs, Schottky devices &c. may be formed.
Patent GB-886235-A (GB)
Title: Improvements in presses for the consolidation of textile slivers
Inventor: DOOTSON HAMER
IPC: B30B9/30
Filed: 1957-11-27
Abstract: 886,235. Baling presses. NEWHILL & EARNSHAW Ltd. April 16, 1958 [Nov. 27, 1957], No. 36937/57. Class 94(1). A baling press for slivers which are supplied to it coiled in a can 15 having a false bottom 18 to which is fixed an axial spindle 16, comprises a vertically movably gripper for engaging the spindle and drawing it through a presser plate so that the coil is compressed between the plate and the rising false bottom. The gripper is supported on a head 1 movable vertically on a pillar 11, and as the head descends, the spindle 16 is guided by a cone 3 into the jaws, Fig. 3 (not shown) which are closed by a lever 9. The head then rises, raising the bottom 18 and coil, and the presser plate 23 swings inwards to engage the spindle in its slot 23b. At the top of the head's travel a cord a is tied round the bale and presser plate, using slots in the latter and in the bottom 18, and the jaws open permitting the members 16, 18 to fall. The presser plate, carrying the bale beneath it, now swings sideways and an ejector device 24 moving relative to it engages the cord to push the bale clear of the plate 23 to fall on an exit conveyer &c.
Patent GB-998661-A (GB)
Title: Improvements in or relating to mobile refuse treatment units
Inventor: CONRAD EUGEN VON
IPC: C05F9/02
Filed: 1963-09-19
Abstract: <PICT:0998661/C1/1> A vehicle for treating refuse is provided with a loading crane 8, conveyer belt 10, magnetic roller 11, screen 12, conveyer belt 15 for undersize material, hopper 16 and pug mill 17 for oversize material and diesel electric generator 18.  The loading crane and the vehicle drive and stearing are hydraulically operated by an infinitely variable drive.
Patent GB-787785-A (GB)
Title: Shaft coupling
IPC: F16D3/18
Filed: 1955-12-23
Abstract: 787,785. Shaft couplings; universal joints. DE-AIAG-ZUG GES. Dec. 23, 1955 [Jan. 7, 1955], No. 36970/55. Class 80 (2). A shaft coupling or universal joint for use between the gear-shaft of a winch and a shaft fast with the axially movable armature shaft of a motor, in which at least one of the coupled shafts is axially displaceable with respect to a main coupling &c. member, is formed with a hollow space in which is situated a mass of absorbent material constituting an oil reservoir, sealing means making the hollow space oiltight although in communication with the working faces of the displaceable shaft &c., the walls of the hollow space being in part resilient. In one form, a shaft coupling between shafts 1, 2, Fig. 1, has the shaft ends formed with teeth 1a, 2a engaging internal teeth 3a on a coupling member 3. The hollow centre of the coupling member 3 contains two rubber sponges 5, 6 forming the oil reservoirs. The inner ends of the sponges engage a resilient hollow member 4 in communication with the ambient atmosphere through a hole 3c. Seals 1b, 2b prevent oil escaping from the coupling member 3. Axial movement of the shaft 1 or the shaft 2 with respect to the coupling member 3 causes the walls of the hollow resilient member 4 to move in and out, as the ends of the shafts pump up and down the cylinder formed by the coupling member, so that oil is not pumped out past the seals. In another form, a universal joint between shafts 1, 2, Fig. 2, has a coupling member 8 fast en the shaft 2 connected by a resilient intermediate layer 9 to an internally splined coupling sleeve 7 for the shaft 1. The resilient member 9 is formed with a membrane 11 comprising a resilient wall for a hollow space containing the absorbent sponge 6. The space 8a at the back of the membrane 11 is open to the atmosphere through a hole 8b. Axially movement of the shaft 1 with respect to the coupling member 7 forces the membrane 11 in and out. As a modification, the resilient wall of the hollow space may be formed by a spring-loaded piston.
Patent GB-821718-A (GB)
Title: Electro-erosion of metals
Inventor: ADCOCK JOHN LEWIS
IPC: B23H7/38
Filed: 1956-12-05
Abstract: 821,718. Boring holes by electro-erosion. WICKMAN Ltd. Nov. 21, 1957 [Dec. 5, 1956], No. 37137/56. Class 83 (4). Holes of 0.065 inch diameter or less are formed in a metal workpiece by spark erosion using a tubular electrode through which clean dielectric fluid is forced to the spark gap, the electrode being supported in a guide closely adjacent the surface of the workpiece and a trepanning action being avoided. The workpiece is preferably of sintered tungsten carbide, the electrode is of brass and the dielectric is kerosene supplied at a pressure of 80 lb. per square inch. To avoid trepanning, the electrode bore has a diameter not more than twice the length of the spark gap. If the bore is eccentric trepanning may be avoided by rotating the electrode. The electrode and workpiece may be vibrated relative to each other. The Provisional Specification states that the dielectric fluid is supplied from an air-pressurized tank. Specific examples are given.
Patent GB-368783-A (GB)
Title: Improvements in or relating to the regeneration of caustic alkali waste liquors and to apparatus therefor
IPC: C01D1/38
Filed: 1930-12-09
Abstract: In the recovery of caustic alkali from waste lyes by dialysis through a membrane into water or dilute alkali, the liquids being caused to flow vertically in the same or counter directions on each side of the membrane, the sum totals of the pressures on the two sides of the membrane are maintained substantially equal by means of a compensating pressure.  In particular, the osmotic pressure produced on one side of the membrane is counterbalanced. The compensation may be effected by regulating the hydrostatic pressures on the two sides of the membrane, the velocities of the liquids through the compartments and/or the density of the liquid into which the alkali diffuses.  The pressure regulation may also be effected by moving the membrane towards one side of the dialysing chamber to obtain a different cross-sectional area for the flowing solution in each compartment.  If the above compensating means do not lead to a pressure balance at all points of the membrane one or both compartments may be tapered towards the top or towards the bottom. The circulation of the liquids may be promoted by both supply and discharge pumps; the supply pumps may be replaced by stand-pipes with hydrostatic pressure heads. In general, the velocity of the water at the entrance to its compartment is greater than at its exit and the velocity of the waste lye is correspondingly greater at its exit than at its entrance.  When regenerating waste lye from the manufacture of viscose, using a parchment paper membrane, a lye containing less than 0,02 per cent hemicellulose can be obtained.
Patent GB-1107811-A (GB)
Title: Improvements in and relating to structures incorporating thin metal membranes
Inventor: BROGDEN DONALD
IPC: C25F3/02
Filed: 1963-09-20
Abstract: Sheet-like membrane structures comprise metallic support means with a multiplicity of holes therethrough in mechanically inseparable intimate contact with at least one membrane of gas-permeable metal which closes each of said holes to passage of gas otherwise than by diffusion through the membrane.  The structures may be formed by depositing (e.g. electrolytically) the gas-permeable metal on a non-perforate support and selectively removing e.g. by etching, portions of said support to form the holes.  Specified materials are Pd or Pd/Ag alloy membranes on Ag of Ni supports.  After formation, a Pd or Pd/Ag on Ni structure may be heat treated at 800 DEG C. to cause diffusion of Ni into the membrane and prevent, when used for diffusion of hydrogen absorption and consequent disruption near the edges of the holes. The alloying metals may be deposited as separate layers or simultaneously and subsequently subjected to alloying heat treatment, or deposited as alloys.  If desired, an impressed pattern may be imparted to the support structure, and the membrane material coated thereon.  By covering the opposite side with resist material and then removing the latter at the high parts of the pattern followed by etching, curved membrane structures positioned within the thickness of the support means, are formed. In another embodiment, the membrane is sandwiched between two support members, said membrane and at least one support member being electro-chemically deposited. Etching of both support members exposes the membrane.  Support members may be roughened before deposition whereby the gas-permeable surfaces are increased in area.ALSO:Sheet-like membrane structures suitable for separating gases, comprise a metallic support means with a multiplicity of discrete holes therethrough and at least one member of gas permeable metal in mechanically inseparable intimate contact therewith which closes each of said holes to passage of gas otherwise than by diffusion through the membrane.  The membrane sandwiched between parts of the support.  The support may be in the form of a perforated plate and may be flat or of tubular or dished form and the individual portions of a membrane or individual membranes may be of curved form.  Various materials are specified: thus Pd membranes may be supported on Ni supports, (which may result in the Ni modifying the Pd) or Ag supports.
Patent GB-1392097-A (GB)
Title: Intercell connections for storage batteries
IPC: H01M50/529
Filed: 1972-08-10
Abstract: 1392097 Intercell connectors for lead-acid batteries CLYDE BATTERIES PTY Ltd and CENTURY STORAGE BATTERY CO Ltd 10 Aug 1972 37427/72 Headings B3R R2K R2F R6 and R14 Plates of like polarity in battery cells are electrically connected by connectors 3, 4 and plates in adjacent cells are connected by means of lugs 5, 6 on connectors 3, 4 arranged to lie adjacent each other and separated by intercell partition 7, at least one lug having a spigot 9, Fig. 16, fitting into hole 8 through the partition and at least one lug having a receptacle such as 10 so positioned as to accomodate the flash resulting from fusing the lugs together. As shown there is an annular shoulder 14 round the base of the spigot and this may alternatively or additionally be provided around the entry to receptacle 10. This receptacle may alternatively be in the spigot and a number of combinations of these alternative arrangements is disclosed, Figs. 2 to 15, 17, (not shown). Fusion is brought about by pressing the lugs together while passing electric current, the adjacent surfaces of the lugs further being brought into sealing engagement with the partition wall. In another embodiment a web (25) separates the fusion surface from the receptacle (Fig. 17). Reference has been directed by the Comptroller to Specification 1000611.
Patent GB-908919-A (GB)
Title: Improvements in and relating to valve devices
IPC: F16K1/36
Filed: 1960-11-01
Abstract: 908,919. Valves. NORDISKA ARMATURFABRIKERNA A.B. Nov. 1, 1960 [March 3, 1960], No. 37570/60. Addition to 893,370. Class 135. The lift valve described in the parent Specification is modified by providing a recess 8 in the part 1.
Patent GB-1479808-A (GB)
Title: Cleaning device for gramophone records and pickup styli
IPC: G11B3/58
Filed: 1975-09-12
Abstract: 1479808 Cleaning records; brushes combined with cleaning pads R WITTNER 12 Sept 1975 [13 Sept 1974 14 March 1975] 37628/75 Headings A4F and A4K A device for cleaning records and pick-up styli comprises a pad 28 e.g. of foam having a recordcleaning surface 12 and attached to a hollow element 10, a trough 16 which can be secured to the element 10 to enclose the surface 12 when the pad is not in use, and a stylus brush 14 detachably connected to the element 10. As shown the stylus brush 14 has a head 44 normally enclosed in a space 38 in the element 10 but which can be withdrawn for use. The handle 40 of the stylus brush 14 may incorporate further bristles 46 for cleaning the pad 28. The I-section handle 40 is slidably received and retained in a groove 36 in the element 10. In a modification Figs. 7-9 (not shown) the element 10 has an inclined surface (70, 74, 76) to retain the brush head 44 in the space 38 when not in use. The pad 28 may be impregnated with an anti-static liquid.
Patent GB-1129003-A (GB)
Title: Improvements in or relating to capacitor testing equipment
Inventor: DAVIES ERIC
IPC: G01R31/01
Filed: 1966-08-25
Abstract: 1,129,003. Testing capacitors. MARCONI CO. Ltd. May 31, 1967 [Aug. 25, 1966], No.38205/ 66. Heading G1V. A capacitor 1 being tested for leakage current is inserted in series with a resistance 5 and the voltage across the latter is fed through an amplifier 9 to a threshold device 11, e.g. Schmitt trigger circuit or Zener diode, which is triggered when the leakage current exceeds an acceptable value and feeds an output pulse through a differentiating circuit 12 to a two-state circuit 13 so that operation of the latter indicates failure of the capacitor. If the capacitor 1 is of the thin film kind the number of temporary failures of the capacitor insulation in a given time is indicated by a counter 21 which counts the number of times a two state circuit 13 is triggered, 13 being a monostable circuit or a bi-stable circuit having either a manual resetting arrangement or an automatic resetting arrangement which operates after a predetermined time delay. Lamps 16, 17 indicate which state the circuit is in at any given time and a third lamp 18 indicates permanent failure of the capacitor. A resistance 4 limits the current through the resistance 5 in the event of total failure of the capacitor insulation and a resistance 19 can be switched into circuit to permit calibration of the threshold device 11.
Patent GB-1454892-A (GB)
Title: Hot forged scrap metal piglets
IPC: C22B1/00
Filed: 1975-09-19
Abstract: 1454892 Making ferrous piglets from scrap SERFCO INTERNATIONAL Ltd 19 Sept 1975 38578/75 Heading B3A [Also in Division C7] In a process for hot forging scrap metal, e.g. cast iron or steel, in which the scrap is first cleaned by passing it through a furnace, the scrap is partly cleaned before entering the furnace. The scrap is passed through a chipper and is then graded for size or composition and the forged scrap may be coated with sodium silicate. Before or after the furnace additives may be incorporated, e.g. C, Ni, Cr, Mo, P, Ti, V, Zr ferrosilicon, ferrosilicon Mg, soda ash, fluospar or limestone. The forged scrap is formed into piglets suitable for use as a furnace charge.
Patent GB-1015308-A (GB)
Title: Improvements in rug cleaning devices particularly for attachment to rotary floor polishers
IPC: A47L11/164
Filed: 1964-09-22
Abstract: 1,015,308. Rug cleaning devices. GENERAL ELECTRIC CO. Sept. 22, 1964 [Oct. 8, 1963], No. 38608/64. Heading A4F. In a rug cleaning device preferably for attachment to a rotary floor polisher cleaning liquid introduced into a container 33 is foamed by a rotary agitator 34, which draws air into the container, e.g. through holes in its lid 47, and which is driven by a rotary applicator 15 adjacent which the foam passes to the rug, e.g. through a shoot 57. In the illustrated embodiment the applicator 15 is one of two which are mounted on a floor polishing machine in place of the brushes, and each of which comprises spokes 18 (not shown) radiating from a central hub to an outer rim. The lower surface 27 of each applicator is convex so that the foam flows into the spaces between the spokes 18, and the applicator 15 which drives the agitator 34 carries a peripheral resilent band 24 (not shown) for driving engagement with the knurled end 40 of the agitator shaft 35. The cleaning liquid is fed to the container 33 through a flexible tube 50 from a tank mounted on the handle of the floor polisher.
Patent GB-1393822-A (GB)
Title: Textured protein
IPC: A23J3/26
Filed: 1972-08-18
Abstract: 1393822 Protein product GENERAL MILLS Inc 18 Aug 1972 38700/72 Heading A2B [Also in Divisions B5 and C3] Untextured protein dough, for example soy, peanut, cottonseed, sesame seed, or brewer flakes, is extruded as a continuous rope, cut into pieces, propelled in a confined path through zone under gaseous pressure and temperature sufficient to texturise the protein, and then removed to a lower pressure zone where the pieces are expanded. The figure shows a suitable apparatus, protein material from a hopper 33 being worked into a dough in screw extruder 28, the rope issuing from nozzle 37 being cut into pieces by cutter 40, steam under pressure being supplied from source 12. Construction 19 maintains the pressure in zone 17, and the texturised pieces then expand when they issue into ambient surroundings at 42. The product may be used as a meat analog.
Patent GB-362186-A (GB)
Title: Improvements relating to inflatable rubber articles
IPC: B63C9/15
Filed: 1930-12-24
Abstract: 362,186. Swimming belts. MAcLELLAN & CO., Ltd., G. and BEAVEN, E., Glasgow Rubber Works, Shuna Street, Mary hill, Glasgow. Dec. 24, 1930, No. 38800. [Class 77.] An inflatable tube (e.g., according to the earlier Provisional Specification, a swimming belt) made of rubber &c. is fitted with a valveless inflating tube 5, which, after inflation, is folded as shown in Fig. 3 and then tucked into the closely adjacent unitary pocket 6, Fig. 4. The tube 5 may be reinforced near its junction with the article.
Patent GB-1480847-A (GB)
Title: Controlled withdrawal of catalyst from pressurized reaction zones
IPC: C10G35/12
Filed: 1974-09-05
Abstract: 1480847 Discharging and charging catalyst U O P INC 5 Sept 1974 [6 Sept 1973] 38812/74 Heading B1F Catalyst is withdrawn from a pressurized reaction zone 1, e.g. being used for hydroprocessing hydrocarbons, by (a) passing catalyst downwards through conduits 19 into a liquid filled hopper 24, (b) passing liquid hydrocarbon upwards through conduit 19 to stop the flow of catalyst, (c) equalising the hydrostatic pressure between hopper 24 and liquid-filled lock hopper 28, e.g. with pressurized fluid from 29 by opening valves 30 and 35, and then transferring the catalyst to hopper 28 via conduit 27 by opening positively sealing valve means 26. (d) closing valve 26 and (e). Hopper 24 may be vertically segmented as shown in cross-section in Fig. 2 with equal-volume segments. The hydrocarbon passed up conduits 19 may have a lower boiling point range than the charge stream 2. The withdrawal of the catalyst may be associated with a process for charging catalyst into reactor 1 in which catalyst is fed into lock hopper 6 from 4 with valve 8 closed and purged with liquid, a relatively large amount of catalyst compared with that withdrawn in a single operation through conduits 19 is then passed from hopper 6 via open valve 8 to hopper 13 containing low boiling point hydrocarbon liquid, with valve 17 closed, and then opening valve 17 until all the catalyst from hopper 13 has passed to the reactor.
Patent GB-1263704-A (GB)
Title: Production of cellular metal structures
Inventor: JERVIS ROY
IPC: C23C10/00
Filed: 1968-08-14
Abstract: 1,263,704. Electrolytic production of metal cellular structures. DUNLOP HOLDINGS Ltd. Aug.13, 1969 [Aug.14, 1968], No.38827/68. Heading C7B. A cellular structure is produced by electroplating iron on to a conductive porous substrate, e.g. an agglomerate of fibres such as felted material, natural sponge or synthetic resinous foam such as polyurethane foam, and thereafter alloying the foam by contacting it at elevated temperature with an alloying componant or precursor thereof. The substrate may be inherently conductive, i.e. by inclusion of a conductive additive therein, or maybe providedwith a conductive coating, e.g. by chemical deposition. The alloying element may be C; Si; N; Be; Zn; Cd; B; Al; Ti; Zr; Sn; Cr; Mo; W; Co or Ni. Various methods of alloying the iron foam are described. The resulting structure may be heated to ash out the substrate.
Patent GB-390147-A (GB)
Abstract: 390,147. Wheel tyres. HOLSTRUP, S. A. H., 3, Abel Cathrinesgade, Copenhagen. June 27, 1931, No. 18630. Convention date, Aug. 19, 1930. Void [Published under Sect. 91 of the Acts]. [Class 144 (i).] To avoid side-splash, the outer wall of a tyre is formed with a conical flange 4 which joins the actual tread through a cylindrical zone 3.
Patent GB-974021-A (GB)
Title: Plastic compositions based on polychloronaphthalenes
IPC: H01B3/30
Filed: 1962-10-16
Abstract: Compositions finding application as dielectric substances and as non-inflammable coatings comprise chlorinated polyethylene, ethylenevinyl acetate copolymer and polychloronaphthalenes. Optional ingredients such as plasticizers and stabilizers, e.g. epoxidized soybean oil, also may be present.
Patent GB-990090-A (GB)
Title: Electron discharge device
IPC: H01J19/42
Filed: 1962-10-17
Abstract: 990,090. Electric discharge tubes. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 17, 1962 [Nov. 15, 1961], No. 39328/62. Heading H1D. An indirectly heated cathode comprises at least two elements having facing planar surfaces with emissive material only on the facing surfaces to provide a construction somewhat like a " hollow cathode " and improve the transfer characteristic of the tube. As shown, Fig. 1, a diode has two cathode elements 22, 23, of rectangular nickel tube joined at the top and bottom by straps 24 and having coatings 30 on the inner face of bariumstrontium oxide. A tubular anode 16 of aluminium clad steel is carried on mica supports 28. Figs. 4, 5 (not shown) illustrate a tetrode with a similar cathode comprising three parallel rectangular tubes providing two pairs of facing surfaces. Figs. 6, 7 (not shown) provide graphs of transfer characteristics of a tetrode and a diode.