baber/WOPTO huggingface dataset:
Patent GB-885875-A (GB)
Title: Electrolytic capacitors
Inventor: KINGSTON BRIAN WILLIAM
IPC: H01G9/00
Filed: 1960-10-12
Abstract: 885,875. Capacitors. STANDARD TELEPHONES & CABLES Ltd. Oct. 12, 1960, No. 34936/60. Class 37. In order to prevent the formation of a semiconductive oxide on the tantalum lead-out wire 2 of an electrolytic capacitor during its manufacture, a silicone rubber washer 5 is passed over the wire and secured by a blob 6 of an epoxy resin or a silicone elastomer before the oxide layer is formed. The capacitor has a sintered tantalum anode 1, a tantalum dioxide dielectric layer 4, the semi-conductive oxide layer 7 being of manganese dioxide and formed on the dielectric by immersing the electrode in a solution of manganous nitrate and decomposing the salt. The assembly is then coated with carbon 8 and a cathode 9 of a silver paste or solder. The anode may alternatively be a wire or foil.
Patent GB-1477876-A (GB)
Title: Pattern identification system
IPC: G06V10/75
Filed: 1974-08-08
Abstract: 1477876 Character recognition systems TOKYO SHIBAURA ELECTRIC CO Ltd and T IIJIMA 8 Aug 1974 [8 Aug 1973] 34946/74 Heading G4R The pattern to be recognized is compared with reference patterns in each of K categories to identify the unknown with one of the categories. Each category comprises M first and N second reference patterns. The inner product between the unknown and the reference patterns is determined optically or electrically for each category. The results are applied to squaring, adding, and comparing circuitry to identify the pattern. The M reference patterns in any one category represent certain variations of the pattern represented by that category (e.g. O) and the N patterns represent patterns in other categories (e.g. D, Q) that are closely similar to the category. The operations performed by the system ensure a tolerant discrimination with respect to those pattern components within a category which are not readily confused with those of another category, but ensure a severe discrimination with respect to those components which are readily confused. In any one category the M first patterns are orthonormal one to another, and the N second patterns are orthogonal to the first patterns and orthonormal to one another but are included in categories easily confused with this category. Reference is made to the identification of sounds. In one embodiment the unknown pattern f is applied to each of K category circuits. Fig. 5 shows a circuit. Circuits 511-51M and 541- 54N respectively calculate the inner products between f and reference patterns #1-#M and #1-#N. The resulting inner products a1-aM, b1-bM are squared to provide c1-cM and d1-dN. The squares are summed, giving ik, jk. The square of the norm off is calculated and a multiple of the result added to jk to give pk. If ik is greater than pk it is deemed that the unknown pattern f is represented by the pattern An alternative embodiment (Fig. 12, not shown) employs K circuits, each comprising means for calculating the sums i1-iK of the squares of the inner products of f and the MK first reference patterns, and the sums j1-jK of the squares of the inner products off and the NK second reference patterns. The values tr of ir-jr are determined and the maximum tr found in order to identify the pattern. In a third arrangement, Fig. 13, the inner products are determined by applying the optical unknown pattern f to reference pattern filters #1-#M and #1-#N (only three shown) for one category. The filters are viewed by photocells which provide inner product signals to the squaring circuits of Fig. 5. Each filter may carry K reference patterns and present them in turn to the unknown pattern f.
Patent GB-1480336-A (GB)
Title: Ledgers for cigarette and similar rod making machines
IPC: A24C5/28
Filed: 1974-10-08
Abstract: 1480336 Cutting continuous cigarette rod MOLINS Ltd 8 Oct 1974 [23 July 1973] 35095/ 73 Heading A2C A ledger for a continuous rod making machine, for supporting the rod during cutting comprises two rotary members arranged to rotate at the same speed and in the same direction about parallel axes, and a connecting member which is pivotally connected to the rotary members and carries a rod support which supports the rod during each cutting stroke, the connecting member including a resiliently flexible portion to accommodate any error in the distance between the pivot axes of the two rotary members. As shown in Figs. 1 to 4, two spaced U-section support members 4, 6 are secured by screws 8, 10 to a carrier member 12 secured to one end of a connecting member 14. Screws 8, 10 pass through horizontal slots in members 4, 6 so that the positions of the support members can be adjusted. During cutting the knife passes through the gap between members 4, 6. Connecting member 14 comprises a relatively thin and flexible bowed portion which has, at its opposite ends, integral annular portions 14A, 14B by which it is pivotally secured to two rotating members 16, 17. Specification 1332689 is referred to.
Patent GB-1329688-A (GB)
Title: Electrochemical lithium-selenium power-producing cell
IPC: H01M4/74
Filed: 1971-07-27
Abstract: 1329688 Cell with molten metal active material UNITED STATES ATOMIC ENERGY COMMISSION 27 July 1971 [21 Sept 1970] 35185/71 Heading H1B A re-chargeable cell comprises a cathode 11 of molten selenium disposed in a cup 14 of niobium and an anode 12 of molten lithium disposed in a nickle-iron alloy cup 17. The electrolyte 13 comprises a disc of a fused salt consisting of a eutectic of lithium fluoride, lithium chloride and lithium iodide mixed with a lithium aluminate filler. To prevent the selenium permeating the electrolyte the disc 13 is coated with the eutectic salt. The cathode current collector 16 comprises a mesh of niobium formed into corrugated shape. The anode current collector 19 comprises sintered stainless steel permeated with the lithium. The cell is sealed in a vacuum-tight manner by an L-section ring 20 of a nickel-iron alloy, a glass or ceramic seal 21 and a ring 22 of boron nitride, beryllium oxide, aluminium nitride or alternating layers of stainless steel and thoria.
Patent GB-522123-A (GB)
Title: Improved lubricants and their manufacture
IPC: C10M137/10
Filed: 1938-12-05
Abstract: 522,123. Lubricating-compositions. DU PONT DE NEMOURS & CO., E. I. Dec. 5, 1938, No. 35451. Convention date, Dec. 3, 1937. [Class 91] [Also in Group IV] A lubricating composition consists of oil or grease incorporating a small proportion of an alkyl thiophosphite containing at least one alkyl radicle attached directly to a sulphur atom, each such alkyl radicle containing 1-6 carbon atoms. Amounts of 0.02 to 10 per cent. are added. Examples mention triethyl trithiophosphite, triamyl trithiophosphite, butyldiamylthiophosphite, trilauryl trithiophosphite, trimethyl trithiophosphite, trihexyl trithiophosphite and several others. Specification 454,215 is referred to.
Patent GB-918906-A (GB)
Title: Pressure ratio switch
IPC: H01H35/26
Filed: 1961-10-02
Abstract: 918,906. Fluid actuation of switches. KOLLSMAN INSTRUMENT CORPORATION. Oct. 2, 1961 [Oct. 7, 1960], No. 35519/61. Class 38 (5). A pressure ratio switch includes diaphragms 16, 17, spaced from one another to define three pressure chambers, and carrying contacts 21, 23, movable into engagement under predetermined pressure ratio conditions in the three pressure chambers. Two cup-shaped members 10, 11 joined by a screw-ring 19 serve to adjust the distance Z between the contacts 21, 23, and thereby to set the pressure ratio at which the contacts engage. In a Mach number switch the setting is a function of the Mach number at which the contacts are to close.
Patent GB-911948-A (GB)
Title: Hand protecting handle
IPC: A45F5/10
Filed: 1959-10-20
Abstract: 911,948. Bag &c. handles. FRANGES, H. M. Oct. 20, 1959 [Oct. 20, 1958], No. 35577/59. Class 133. A handle grip 10 for fitting to one or more cord loop handles 16 comprises a pliable lower body portion 12 with two upwardly extending side walls 11 which define a groove seating the loop(s) and are provided with slots 13 extending from the side walls upper edge down to the lower portion 12. The grip 10 is preferably injection moulded from wood pulp or a synthetic resinous plastics material. One loop handle e.g. of a carrier bag may be embedded in the lower portion 12, while a central slot 13<SP>1</SP> is larger than the remainder to accommodate a cross-loop of a package. Inwardly-facing lugs 21 of differing shapes are provided at the ends of each side wall 11 to retain the cord loops.
Patent GB-445258-A (GB)
Title: Apparatus for the electrical precipitation of suspended particles from gaseous fluids
IPC: B03C3/88
Filed: 1935-12-23
Abstract: 445,258. Electrical precipitation apparatus. LODGE-COTTRELL, Ltd., George Street, Parade, Birmingham.-(Siemens- Lurgi-Cottrell-Elektrofilter-Ges. f³r Forschung und Patentverwertung; 101, Nonnendammallee, Siemensstadt, Berlin) Dec. 23, 1935, No. 35582. [Class 39 (i)] Two or more electrical precipitators 3, 4, 5 are superposed in a flue 1 and are separately provided with independent conduits 11, 8, 9, 10 for the collection and removal of the precipitate while the gas to be cleaned flows directly without lateral diversion through the successive precipitators. As shown, the collecting conduits of the upper precipitators lead to the outside of the flue. Alternatively, the collecting conduits may pass through the fields of the precipitators lower in the arrangement, or through their collecting electrodes which are made hollow.
Patent GB-1380793-A (GB)
Title: Multilayer anti-reflection coating
IPC: G02B1/11
Filed: 1972-07-29
Abstract: 1380793 Anti-reflection coatings BARR & STROUD Ltd 16 May 1973 [29 July 1972] 35607/72 Heading G2J A multi-layer, dielectric coating is applied to a transparent substrate, the coating comprising at least four separate layers and being five quarter wavelength in optical thickness. Adjacent layers have different refractive indices which are related in accordance with one of four detailed formulae set out in the Specification. At least three of the layers are one quarter wavelength in thickness and the others are a multiple of one quarter wavelength in thickness.
Patent GB-1151016-A (GB)
Title: Improvements in or relating to Temperature Control of Superheated Steam.
IPC: F22G5/12
Filed: 1967-08-03
Abstract: 1,151,016. Treating a gas with a liquid. KALLE-REGULATORER A.B. 3 Aug., 1967 [28 Sept., 1966], No. 35667/67. Headings B1R B2F [Also in Divisions F2 and F4] A valve for introducing a controlled flow of cooling water under pressure into a conduit to desuperheat a flow of steam therein comprises a cylinder 4 having a nozzle 6 and nozzle-like passages 15 helically spaced around the cylinder and tangential to the inner surface thereof, and a piston 11 slidable in the cylinder which when moved from the nozzle 6 successively uncovers passages 15 to permit flow of water from an inlet 10 in an outer jacket 8 into the cylinder bore and helically out of nozzle 6. The jacket 8 is mounted in a curved portion of the steam conduit. The piston 11 is operated by a lever (20) (Fig. 3, not shown), which may be actuated by a servomotor responsive to the steam temperature. A nosepiece 14 on the piston 11 may close the nozzle 6.
Patent GB-391401-A (GB)
Title: Improvements in and relating to surge indicators
IPC: G01R13/04
Filed: 1932-12-16
Abstract: 391,401. Protective arrangements. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitõts- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Dec. 16, 1932, No. 35755. Convention date, Dec. 16, 1931. [Class 38 (iv).] In order to indicate the number of discharges that have taken place across a spark gap f, Fig. 1, in the earth conductor a of a lightning or surge conductor A, the gap is shunted by a condenser c in series with a choke coil d, the condenser being normally kept charged to the potential of a directcurrent source b. On the' occurrence of a discharge, the gap / is rendered conducting and allows the condenser c to discharge. After the discharge has taken place, the condenser is again charged from the source b through a resistance e and a relay g operating a counter. The choke coil d may be replaced by a resistance. In an alternative arrangement, a resistance or choke coil is inserted in the earth conductor a in place of the spark gap f, which is connected in series with the choke coil d, in the shunt circuit. In a further modification, Fig. 3, a spark gap with three electrodes i<1>, i<2>, i<3> is employed, the electrodes i<1>, i<2> being connected by a high resistance k in order to keep the surge conductor at earth potential at one side..
Patent GB-460337-A (GB)
Title: Differential feed device for carrier arm sewing machines
IPC: D05B27/08
Filed: 1935-12-27
Abstract: 460,337. Sewing-machines. MAUSERWERKE AKT.-GES. Dec. 27, 1935, No. 35844. Convention date,. Dec. 31, 1934. [Class 112] The differential feed mechanism of a feedoff-the-arm machine is arranged with parts moving longitudinally of the arm to minimize vibration at high speeds. The main feed dog 2 is carried on a bar 20 clamped to a carrier 15 by a screw clamp 22. The carrier 15 has arms spread as wide as the machine arms 1 permits. These arms are pivoted at 16 on arms 17, 18 of a member 19, pivoted in a transverse shaft 12. The member 19 carrying the arms 17, 18 has a rigid arm 11 pivoted to an arm 10 of which the other end is adjustably secured in a slot 14 of the lower arm 7 of a double-armed lover 5 pivoted at 8, to permit adjustment of the length of the feed stroke. The arm 5 transmits feed movements to the dog 2 by its connection 7 to an eccentric 6 on the main shaft 4. The bifurcated auxiliary feed dog 3 is carried in a sleeve 21 surrounding the bar 20 and clamped to an arm 24 by screw clamps 27, 28. The arm 24 is adjustably secured in an arcuate slot in an arm 23 upstanding from the member 19 carrying the arm 11, and rocked by the main feed eccentric 6. By altering the position of the end of the arm 24 in the slot, the degree of differentiation of the feed is altered.
Patent GB-871305-A (GB)
Title: Improvements in or relating to drafting film
IPC: C08J7/046
Filed: 1959-10-22
Abstract: 871,305. Coated polyester films. DU PONT DE NEMOURS & CO., E.I. Oct. 22, 1959 [Nov. 19, 1958], No. 35890/59. Class 140. A dimensionally stable translucent drafting film comprises a flexible, biaxially-oriented, highly polymeric polyester film substantially composed of the polyesterification product of a dicarboxylic acid and a dihydric alcohol having on at least one surface, in order: (i) a thin layer of an adherent film-forming, essentially hydrophobic organic copolymer, and (ii) a thin layer of a water-soluble urea-, melamine-, or thiourea-formaldehyde resin, or their cationic-modified, aliphatic mono- and polyamine modified and guanidine modified forms containing uniformly dispersed, finely-divided discrete particles of a water-insoluble, translucence-producing, solid inorganic toothing agent having an average particle size from 0.1 to 10 microns. The copolymer may be a vinylidene chloride-acrylic ester-itaconic acid copolymer containing said ingredients in the respective amounts of 35 to 96%, 3.5 to 64.5% and 0.5 to 25%, by weight. The layer of watersoluble resin may be applied to both surfaces of the film and may contain barium sulphate, a liquid aliphatic glycol plasticizing agent, e.g. ethylene glycol, and a Werner complex of chromic chloride with a fatty acid of 12 to 25 carbon atoms. The polyester film may be of polyethylene terephthalate, and may have a thickness of from 75 to 250 microns and exhibit a shrinkage in both longitudinal and in a direction 90 degrees thereto of not more than 0.2% when heated under no significant tension to a temperature of 120 C. for a period of 5 minutes. The water-soluble resin is applied as an aqueous solution containing the toothing agent, to the hydrophobic copolymer coating on the polyester film, and the coated film is dried by heating it for 20 to 40 seconds at 70 to 95 C., and cured by heating it from 110 to 125 C. for 3 to 5 minutes. Specified toothing agents are silica, ground glass, titanium dioxide, chalk, talc, diatomaceous earth and magnesium carbonate. Specifications 578,079, 718,422, 766,290 and 786,176 are referred to.
Patent GB-1104015-A (GB)
Title: Process and apparatus for displacing scum in continuous casting moulds
IPC: B22D43/00
Filed: 1966-08-11
Abstract: 1,104,015. Continuous casting-machines. UNITED STATES STEEL CORPORATION. 11 Aug., 1966 [1 Sept., 1965], No. 36051/66. Heading B3F. In the continuous casting of a rectangular sectioned bar in a mould 12 the scum floating on the surface of the molten metal is blown to the end walls 14 of the mould by jets 17 of inert gas, e.g. argon or nitrogen, so that the scum inclusions in the solidified bar occur at its edges only and can be removed without having to treat or condition the sides of the bar. The jets 17 may be preset before a casting operation by a plate (20) (Fig. 4, not shown) temporarily set into the mould (12) and having spot marks (21) (Fig. 3, not shown) thereon to which the jets 17 are aligned.
Patent GB-1276405-A (GB)
Title: Photographic composing apparatus
Inventor: SINNOTT DAVID JOHN
IPC: B41B17/10
Filed: 1970-07-24
Abstract: 1276405 Photographic type-composing apparatus STAR-NEW ERA Inc 24 July 1970 36073/70 Heading B6W To permit a required character in continuously rotating font 4 to be illuminated as it passes a predetermined position the characters in the font are counted as they pass detector 5 and light source 1 is flashed when the count associated with a required character is reached. An aperture 18 may be associated with each character, the detector 5 being arranged to sense the apertures and transmit the information to counter 6. Each line of characters to be composed is read from a tape and stored in a memory 13. Each character of the line is assigned an identifying count which is fed to circuit 7 where it is compared with the count in counter 6. The intensity of light source 1 may be monitored and controlled by sensor 2b which receives a portion of the beam from beam splitter 2a. The beam is deflected by pentaprism 4d, through the required character, through lens 8 and on to movable mirror 9 which deflects the beam on to film 16 movable to provide line spacing. The mirror-moving mechanism 10 receives character width and spacing information and is arranged to delay flashing the light source until the mirror is in position.
Patent GB-523665-A (GB)
Title: Improvements in and relating to the production of starch products
IPC: C08B30/12
Filed: 1938-12-10
Abstract: 523,665. Starch products; adhesives ; filaments ; films. CORN PRODUCTS REFINING CO. Dec. 10 1938, No. 36083. Convention date, Dec. 10, 1937. [Classes 70 and 121] [Also in Group IV] A water-resistant adhesive is made by reacting starch with an alkali and then treating it with formaldehyde, e.g., formalin, and an acid substance, preferably in such amount as to give a pH value not substantially higher than 2. The term starch includes raw starch or starch containing materials, and hydrolysed starch from gelatinized starch to dextrines and British gum. Alkalis specified include ammonia, sodium hydroxide, triethylamine. The acid substance may be a mineral or organic acid or an acid salt or acid reactant such as sodium bisulphate, aluminium sulphate or acetyl chloride. The product may be obtained as a powder, filament, film or sheet and may be applied to or incorporated into other bodies or materials, and may be used as an adhesive, a size, an impregnating material or a coating material, water-resistance being obtained on heating. Films may be made by spreading a paste in thin layers and heating to form highly water-resistant transparent films. The product may be used to coat or bond paper, cloth or wood veneer or to produce moulded objects from wood pulp, wood flour, wood fibre, bagasse, cotton linters or cork powder. Specifications 332,680; [Class 121], and 522,732 are referred to.
Patent GB-784840-A (GB)
Title: Improved method of producing composite yarns
IPC: D02G3/26
Filed: 1954-02-01
Abstract: 784,840. Yarns and threads. RHODIATOCE SOC. PER AZIONI. Feb. 1, 1954, [Feb. 12, 1953], No. 36111/55. Divided out of 784,839 -[Group IV(a)] Class 120(3) A composite yarn of continuous filaments having "strong covering power" i.e. an optical effect giving an impression of intense colour tone, is produced by doubling and subsequently intertwisting two or more single yarns (of equal or different counts) of continuous filaments which are untwisted or have "spinning twist" i.e. not more than 50 turns per metre, so that the filaments are disposed in parallel, at least one of the single yarns being coloured or capable of having colour imparted to it, e.g. it may contain an intermediate which may subsequently be developed to dyestuff, or it may have a dyeing affinity different from the yarn with which it is twisted. Coloured and colourless yarns may be doubled, or yarns of brilliant coloured filaments may be doubled with opaque or semi-opaque coloured yarn obtained by known processes while spinning or subsequently, and such filaments may be glossy or matt. Constituent yarns may be of cellulose acetate or viscose rayon and melt-dyed.
Patent GB-842483-A (GB)
Title: Protective device for preventing over-travel of follower devices
Inventor: SINDELAR JAROSLAV
IPC: G05D3/14
Filed: 1957-11-20
Abstract: 842,483. Control of motors. TESLA, NARODNI PODNIK. Nov. 20, 1957, No. 36146/57. Class 38 (3). Relates to a servo system in which the motor drives the indicator of a registering instrument having a restricted range, the motor being adapted to be stopped at a limiting position until the control signal reverses whereupon the motor is free to seek a new balance-point within the range of the instrument. Contacts 4 and 6 are closed when the indicator reaches a limiting position in one direction of movement, a D.C. control signal being applied to a polarized relay 7 whereby contacts 8 are closed. This causes a brake 10 and a signalling device 11 to be energized, the brake stopping the motor until the control signal is reversed and the relay 7 is de-energized. A relay 14 may be provided to disconnect the servomotor at the same time as the application of the brake. The system may be modified for operation with A.C. control signals by the provision of a phasedetector in circuit with the coil of the polarized relay, Figs. 2, 3 (not shown).
Patent GB-522606-A (GB)
Title: Improvements relating to telephone systems
IPC: H04M3/40
Filed: 1938-12-12
Abstract: 522,606. Operators' telephone sets. SIEMENS BROS. & CO., Ltd., and CHITTENDEN, P. A. Dec. 12, 1938, No. 36163. [Class 40 (iv)] To minimize the unbalancing effect on a connection involving repeaters of the association of an operator's set, the microphone TR of the latter is fed through an inductance such as the pilot relay PL and is shunted by a circuit consisting of the primary I of the line transformer, a resistance RR and a condenser QA in series. The receiver R is associated via an amplifier VA, the input transformer of which is associated as shown with resistances RPA, RCL and a condenser QC, with a third winding III of the line transformer. With specified values for the components the impedance looking into the secondary of the line transformer is about 3000 ohms at mean speech frequencies and sidetone is suppressed. In the arrangement shown the speaking key CSK of a connecting circuit causes the operation of its .relays S, SK and that of the common relay MS to insert the splitting keys PAK, PCK in the talking circuit and connect up the operator's set and to sub-. stitute resistance RTS for the resistance RTN in the bridge circuit including condenser QTN across the talking circuit. Operation of the splitting keys associates the operator's set with one side of the connection only, bridges the talking circuit on that side by resistance RTS and condenser QD in series and bridges the talking circuit on the other side by resistance RBL and condenser QE in series. Operation of the monitoring key CMK causes the operation of M, MO, MS to cause the correction of the receiving circuit only.