baber/WOPTO huggingface dataset:
Patent GB-1352413-A (GB)
Title: Data storage and retrieval system
IPC: H04L25/49
Filed: 1971-04-27
Abstract: 1352413 Decoding recorded signals HONEYWELL INFORMATION SYSTEMS Inc 27 April 1971 [28 May 1970] 11662/71 Heading G4C An alternating electrical signal generated in response to a succession of binary digits stored in a succession of cells on a record medium is differentiated, the polarity of the differentiated signal being detected to derive clock signals to sample the signal in both first and second halves of each cell, a comparator comparing the sampled signals in each half to generate an output signal indicative of the binary digit. In the embodiment of Fig. 1, for signals on a magnetic record in double frequency code, clock signals C1, C2 are derived by applying the output of a comparator 32 which is a square wave signal representing the polarity of the signal from read head 24 after differentiation via a pulse processor 34, phase detector 40, voltage controlled oscillator 42 and bi-stable to oneshots 46, 48. The output of the comparator 32 is also fed to a two-stage shift register 38, storage being controlled by the output of the oscillator 42 twice per cell time, one of two AND gates 50, 51 being enabled when there is no change in the input signal during the cell time to switch via an OR gate 55 a bi-stable 53, the set and reset inputs of which are connected via an inverter 37 and directly, respectively, to the OR gate. The bi-stable 53 is clocked at the second pulse of the voltage controlled oscillator 42 in each cell time by the signal C1. The state of the twostage shift register is also examined at the first pulse of the voltage controlled oscillator in each cell time by a second bi-stable 52, clocked by the signal C1 and since a transition should always precede this pulse (there being a transmission at each cell boundary) switching of the bi-stable to its "1" state indicates an error. In a modification (Fig. 3, not shown) for retrieving a signal in phase modulation code, AND gates (50<SP>1</SP>, 51<SP>1</SP>) are enabled when the states of the two stage shift registers (38<SP>1</SP>) are 0, 1 and 1, 0 respectively, the gates being connected to the set and reset input of a bi-stable (53<SP>1</SP>) clocked by the signal C1. An error bi-stable (52<SP>1</SP>) receives the outputs of the two AND gates via inverters (71, 72) and a third AND gate (75), the output of which is fed directly and via an inverter (70) to the set and reset input of the bi-stable (52<SP>1</SP>). It is stated that the apparatus may be used with, inter alia, magnetic and thermoplastic recording tables, magnetic disc, drum or thin film, punched tape or cards and optically readable code.
Patent GB-1103214-A (GB)
Title: Magnetic tape transport
IPC: G11B5/48
Filed: 1965-03-19
Abstract: 1,103,214. Adjusting magnetic heads. RADIO CORPORATION OF AMERICA. 19 March, 1965 [1 April, 1964], No. 11843/65. Heading G5R. A magnetic tape transport providing adjustment of sets of read and write heads comprises a support having a first portion 34, movable relative to a frame 10, and carrying a block of read heads R and a second portion 38, movable with respect to the first portion, and carrying write heads W. Movement of the portions of the support is permitted by the notches 24, 36, adjustment being effected by screws 28, 30 and 40, 42.
Patent GB-435980-A (GB)
Title: Improvements in or relating to the stereophonic reproduction of sound
IPC: H04S1/00
Filed: 1935-04-17
Abstract: 435,980. Reproducing music &c. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Friebus, R. T. ; 15, Marion Road, Montclair, New Jersey, U.S.A.) April 17, 1935, No. 11848. Convention date, April 26, 1934. [Class 40 (iv)] In a sound-reproducing system employing two or more spaced microphones feeding spaced loud-speakers over separate channels, the apparent lateral position of the sound source is dependent mainly on the relative strengths of the direct waves received by the microphones, while the apparent " fore and aft " position is dependent mainly on the relative strengths of the direct and reflected waves received by the microphone nearest to the source. In order to simulate any desired positional effects, such as movement of the source, each channel is connected to the microphones so as to receive currents corresponding to both direct and reflected sound energy in variable proportions. Fig. 1 shows two channels 13, 14 feeding loud-speakers 15, 16 and each receiving currents from microphones 10, 11 through independently variable volume control devices 22, 23, 26, 27. It is explained how the volume controls may be adjusted to simulate movements of a single performer and of an orchestra on the dummy stage 12. One or both of the microphones may be moved while the controls are being manipulated. Fig. 4 shows three channels 51-53 feeding spaced loud-speakers 66-68 and each receiving currents from a " close-up " microphone 60 and a " distant " microphone 63 through separate volume controls 54, 55. In addition, auxiliary " off-stage " loudspeakers 69, 70 may be connected to the outer channels 51, 53 in parallel with the loudspeakers 66, 68, each having a separate volume control 71-74. This arrangement is useful to simulate the passage of a band across the dummy stage. In Fig. 7, each of the two channels 90, 91 receive currents from a " closeup " microphone 60 and a "distant" microphone 63 as in Fig. 4 and also a proportion of the currents in the other channel through a volume control 92 or 93. Each channel feeds two loud-speakers 66, 94 located one above the other through volume controls 72, 96. The arrangements may be adapted for recording and subsequent reproduction, a separate record or sound track being made for each channel.
Patent GB-497539-A (GB)
Title: Improvements in or relating to means for supporting the springs of spring seating surfaces
IPC: A47C23/053
Filed: 1938-04-21
Abstract: 497,539. Spring upholstery. GARNETT, N. April 21, 1938, No. 11930/37. [Class 52 (iv)] The lower ends of conical upholstery springs 1 are mounted in gaps 3 formed in a continuous helical spring 2 and are held therein by a locking wire 4.
Patent GB-1012624-A (GB)
Title: Alloxazines and the 5-n-oxides thereof
Inventor: GOLDNER HERBERT
IPC: C07D475/14
Filed: 1963-03-26
Abstract: The invention comprises alloxazine - 5 - N-oxides of the formula <FORM:1012624/C2/1> where R1 and R2, the same or different, represent hydrogen atoms or straight or branched chain-alkyl groups and R3 represents a hydrogen atom or an alkyl or alkoxy group, and the preparation thereof and of alloxazines of the formula <FORM:1012624/C2/2> by reacting a 4-anilinouracil of the formula <FORM:1012624/C2/3> with nitrous acid or an ester thereof to give the corresponding 5-nitroso compound, which undergoes a cyclization reaction to give an alloxazine of the Formula (I), which reacts with excess nitrous acid or nitrous acid ester to give the compounds of the Formula (II). The mixture of compounds of the Formulae (I) and (II) may be reduced with hydrogen to give compounds of the Formula (I).  In a modification of the process the 4-anilino-5-nitroso-uracil is isolated and cyclized to give compounds of the Formula (I) by heating.  Compounds of the Formula (III) may be prepared by reaction of the appropriate 4-chlorouracil with an amine of the formula <FORM:1012624/C2/4> or by transamination of the appropriate 4-amino-uracil with compounds of the formula <FORM:1012624/C2/5>
Patent GB-627355-A (GB)
Title: Improvements relating to flyers for use in spinning and twisting frames
IPC: D01H7/26
Filed: 1947-05-03
Abstract: 627,355. Textile spinning and twisting flyers. MACKIE & SONS, Ltd., J., and MACKIE, J. P. May 3, 1947, No. 11978. [Class 120 (ii)] [Also in Group XXII] A flyer of the type having a substantially cylindrical body portion comprising separate legs connected by a ring at the bottom and eyelets for conducting the yarn to its circumference and inwardly to the bobbin at the bottom has a projecting lip provided on each leg in such a position that the yarn can be passed within the lip in its travel down the flyer. The legs b may be straight, as shown in Fig. 5, or diagonal and the eyelets o, p may be lined with an insert of hard material, such as a tungsten carbide alloy. The lips q may extend continuously into the base ring c or break off above the ring, as shown in Fig. 2. Instead of one lip two or more may be provided, and the flyer may be tapered or expanded at the bottom. The flyer may be made from a stamping, or by die-casting, preferably using a light alloy, or the body portion may be made from a cylinder whose walls are partly cut away to leave legs (see Group XXII). Specification 590,236 is referred to.
Patent GB-795326-A (GB)
Title: Heat exchanger
Inventor: HARDY LEWIS EMPSAL
IPC: F22D1/02
Filed: 1956-04-19
Abstract: 795,326. Tubular heat exchangers. SENIOR ECONOMISERS, Ltd. Feb. 22, 1957 [April 19, 1956], No. 11980/56. Class 64(3) A heat exchanger tube or a sleeve adapted to be fitted on to a heat exchanger tubes, is formed with two diametrically opposed longitudinal fins 2 and a plurality of longitudinally spaced transverse fins 3 of substantially triangular form, positioned on opposite sides of the longitudinal fins 2, either in opposed pairs or relatively staggered. When formed as a sleeve, the element may be made of cast iron or light alloy shrunk or cast on to a steel tube. In an economizer described, a plurality of tubular elements are mounted horizontally in vertical rows with the tubes in adjacent rows relatively staggered, the fins 2, either in opposed pairs or relatively alignment and the triangular tube fins 2 of one row fitting between but not intermeshing with those of adjacent rows.
Patent GB-763004-A (GB)
Title: Improvements in or relating to the de-aeration of liquids
Inventor: GILBERT I I ALBERT
IPC: F02M55/00
Filed: 1954-04-26
Abstract: 763,004 Centrifugal separators. NAPIER & SON, Ltd., D. April 19, 1955 [April 26, 1954], No. 12072/54. Class 23 [Also in Group XXVIII] In a separator, particularly for de-aerating liquid from a fuel injection pump, comprising a separator chamber, an air outlet from the upper part of the chamber, a liquid outlet from the lower part of the chamber, and at least one inlet passage which discharges liquid tangentially into the chamber, at least one wall of the passage is resiliently urged towards the other wall to maintain a constant rotary velocity of the liquid within the chamber despite fluctuations in supply of liquid. The chamber 26 has an annular liquid inlet chamber 35, an annular liquid outlet 32, and an air outlet 28. Springs 36, mounted on fixed blocks 37, are arranged to form one wall of the inlet chamber, the inlet passages being formed between the free end of a spring and an adjacent block. The air outlet connects the chamber 26 with a further chamber 29 housing a float 42 carrying a valve member 41 which opens a port 20 when sufficient air has collected in the chamber 29. Liquid from the float chamber passes through a fine screen 43 to a series of ducts 46, 47 on the blocks, and is discharged into the inlet passages to return to the chamber 26. Make-up liquid is supplied tangentially to the chamber 26 by ports 13, the supply of make-up liquid being arranged to maintain a constant pressure in the separator.
Patent GB-834380-A (GB)
Title: A method of producing purified silicon halide
IPC: H01L21/205
Filed: 1958-04-16
Abstract: Boron trichloride is removed from silicon tetrachloride by the formation of an addition compound with one or more of the following: cyanogen chloride, propionitrile, cyanamide, nitrobenzene, diamethylaniline, azobenzene, caprolactam, benzaldehyde, methylethylketone, dimethylglyoxime, valerolactone, dioxane, diethylphosphine, triphenylchloromethane, tri, phenylfluoromethane, phosphorus oxychloride-phosphorus trichloride, phosphorus pentachloride, ferric chloride, and aluminium trichloride, The silicon tetrachloride is thereafter distilled.  It may be drawn off from the reaction vessel through a quartz tube to the distillation vessel by means of a weak suction pump connected to the distillation vessel.  Reaction may be effected at a temperature of -70-50 DEG  C., preferably 0-20 DEG  C. The resulting silicon tetrachloride may be decomposed to form silicon by high-frequency induction heating optionally in the presence of a gaseous reducing agent, and may be absorbed in an already formed drop of silicon adhering to a carrier moving so as to effect crystallization of silicon on to the carrier.
Patent GB-527888-A (GB)
Title: An improved process for the treatment of regenerated cellulosic materials
IPC: D06Q1/08
Filed: 1939-04-22
Abstract: 527,888. Embossing processes. CALICO PRINTERS' ASSOCIATION, Ltd., LANTZ. L. A., and INGHAM, J. S. April 22, 1939, No. 12180. [Class 100 (ii)] [Also in Group IV] Regenerated cellulose material is impregnated with a solution containing formaldehyde and an acid catalyst consisting of a non-volatile acid compatible with formaldehyde, sufficiently strong to promote reaction between formalidehyde and cellulose at a temperature not exceeding 105‹C. but used at a concentration insufficient to cause such reaction at temperatures up to about 60‹C. during the time requisite for drying the material at such temperatures. The impregnated material is dried in such manner that substantially no reaction takes place between the cellulose and formaldehyde during the drying step, and is then subjected to a mechanical treatment to modify its form or appearance and so to impart an ornamental effect without any previous conditioning. It is heated at a temperature above the drying temperature but not exceeding 105‹C., and is finally washed and dried. The mechanically produced effects are thus rendered fast to washing. The mechanical treatment includes embossing. The regenerated cellulose material may be in the form of fibres, yarns, fabrics, or foils. The formaldehyde concentration may be 15 per cent. or less. The catalyst may be an aromatic sulphonic acid, e.g., benzene sulphonic acid or a hydroxy-, amino-, carboxy-, or halogensubstituted benzene sulphonic acid or a corresponding naphthalene derivative, or phosphoric, phosphorous or pyrophosphoric acid, or hydroxymethene sulphonic acid, mono, di-, or trichloracetic acid, oxalic, maleic, malonic, tartaric, or citric acid. These acids have a dissociation constant between 3 x 10-1 and 1 x 1<SP>-4</SP>, Stronger acids, e.g., sulphuric acid, may be used at appropriately low concentrations. Ethylene glycol, diethylene glycol, glycerol, or glycerol diacetate, may be added to the impregnating liquor. To accelerate drying, powerful ventilation may be used or the air may be passed over calcium chloride or silica gel. Pattern effects may be obtained on fabrics or foils. Staple fibres may be mechanically crinkled or curled. In an example, viscose rayon taffeta is impregnated with formaldehyde solution containing naphthlene-2 sulphonic acid and then dried at 55-60‹C. It is cooled, embossed, heated to 90‹C., washed in dilute soda solution, rinsed and dried.
Patent GB-1242501-A (GB)
Title: Suction device for collecting and removing shaved beard from the shaving elements of an electric shaver
IPC: B26B19/44
Filed: 1969-03-07
Abstract: 1,242,501. Electric shavers. MISTRELETTRICA S.R.L. 7 March, 1969 [8 March, 1968], No. 12204/69. Heading B4B. [Also in Division B2] A suction device for collecting and removing cut hair from an electric shaver comprises a trough 501 for cut hair positioned below the shaving members (not shown), a hair suction fan 512, a centrifugal hair separator chamber 506, and a hair collecting chamber 508 with a discharge door 509. A common motor M drives the fan 512 and inner shaving cutter members, and a duct 515 delivers the airborne hair to the chamber 506, clean air leaving through an ejection duct 518 for cooling the cutting members and the user's face, while hair is deposited against a foamed polyurethane filter pad 510.
Patent GB-1491535-A (GB)
Title: Hydrofoil
IPC: B63B1/28
Filed: 1975-03-24
Abstract: 1491535 Hydrofoil craft T STABA 24 March 1975 [25 March 1974] 12225/75 Headings B7A and B7V The hull 13 of a hydrofoil craft has a pair of laterally spaced keels 27 extending substantially along its full submersible length. The bottom surface of the hull between the keels is downwardly concave in transverse section and outwardly extending adjustable hydrofoils 15, 17  are mounted on each keel. A steering system for four propellers 21, 23, each with a rudder 55 is described with reference to Fig. 4 (not shown).
Patent GB-272024-A (GB)
Title: New pyrazolone dyestuffs from amino derivatives of 3-carboxy-4-hydroxy-diphenyl sulphide
Filed: 1926-05-12
Abstract: 272,024. British Dyestuffs Corporation, Ltd., and Mendoza, M. May 12, 1926. Pyrazolones.-The hydrazines obtained by reducing the diazo compounds of the amino derivatives of 3-carboxy-4-oxydiphenyl sulphide described in Specification 260,058 are condensed with esters of #-ketonic acids to yield pyrazolones. In examples, the hydrazine from 2<1>- amino-3-carboxy-4-oxy-4<1>-sulphodiphenyl sulphide is condensed with acetoacetic ester and oxalacetic ester to yield the corresponding 3-methyl- and 3- carboxy-pyrazolones. Azo dyes which dye wool in greenish-yellow to reddish-orange shades little changed by afterchroming are obtained by coupling the above pyrazolones with diazo compounds: the products may also be used for chrome-printing on cotton. In examples, (1) the 3-methylpyrazolone from 2<1>- amino-3-carboxy-4-oxy-4<1>-sulphodiphenyl sulphide is coupled with diazotized sulphanilic acid, 2: 5- dichlorsulphanilic acid, naphthionic acid, aminoazobenzene, and benzene-azo-1-naphthylamine=6 (or 7) -sulphonic acid, and with tetrazotized benzidine, and (2) the corresponding carboxypyrazoline is coupled with diazotized sulphanilic acid, 2 : 5-dichlorsulphanilic acid and naphthionic acid.
Patent GB-673266-A (GB)
Title: Bottom dumping container
IPC: B65D90/62
Filed: 1950-05-17
Abstract: 673,266. Drop-bottom skips; vehicle fittings for loading and unloading. DEMPSTER BROS., Inc. May 17, 1950. [June 13, 1949] No. 12293/50. Class 78 (iv). The bottom wall 16 of the dumping container shown has walls 18, telescoping outside the walls 11 of the container and forming with the bottom wall 16 a shoot which is pivoted at 15 to a wall 12 of the container. An extension 23, 24 of the shoot is pivoted to the bottom wall by a hinge 22 which may be constrained by friction so that the extension is held in any position to which it is moved, and the movement of the extension is limited by co-operating stops 26, 27. Lifting pins or eyes 29, 28 are secured respectively to the wall 23 of the shoot and to a point on the wall 12 below the level of the upper edge of the wall 23 when the box is closed. Further lifting pins or eyes 31, 32 are secured on the walls 12, 13 of the container above this level. The bottom wall 16 and the wall 13 adjacent the hinge 15 are reinforced at 14. The container may be carried on a truck provided with lifting equipment, of the type shown in Specifications 605,864, 547,537 and 507,079, in position to discharge its contents laterally.
Patent GB-979514-A (GB)
Title: Improvements in contact with connection shank
IPC: H01R12/72
Filed: 1963-03-28
Abstract: 979,514. Two-part couplings. ELCO CORPORATION. March 28, 1963 [April 30, 1962], No. 12353/63. Heading H2E. A contact for making connection to the tracks of a printed circuit board comprises a bifurcated mating section 12, a body section 14, and a tapered connection shank 16, the body 14 having legs 36 for mounting on and soldering to the printed-circuit board. Contact arms 20, 22 are chamfered at their inner edges 28 to provide contact surfaces 30 which engage with corresponding chamfered surfaces on a similar mating contact oriented perpendicularly to the first contact. A dimple 34 on body section 14 may be used to fix each contact 10 to a plastic strip or into a contact-protector. A soldering opening may be provided in the body section 14 (Fig. 3, not shown) or in a connection tab, Fig. 5. The alternative embodiment shown in Fig. 5 has two tapered connection shanks 254, 256, and its mating section 212 lies at an angle to its body section 14, an inclined slot 250 and vertical slot 252 being provided to allow twisting of the front mating section 212.
Patent GB-1379195-A (GB)
Title: Flame scarfing apparatus
IPC: B23K7/06
Filed: 1973-03-15
Abstract: 1379195 Scarfing GRIESHEIM GmbH 15 March 1973 [15 March 1972] 12407/73 Heading B3V Slag is prevented from flowing on to the upper and lower surfaces 30, 42 of a workpiece 14 whilst its side surface 12 is being flame scarfed by directing a pressure medium on to the edge 40 bounding the side face 12 and upper workpiece surface 30 and positioning the lower end 44 of the oxygen duct 16 of the scarfing torch 10 above the lower workpiece surface 42, e.g. by 5-10 mm. The slag is prevented from flowing on to the upper surface 30 by a jet of compressed air from a nozzle 32 connected by an arm 28 to the torch 10. The nozzle 32 is hinged at 38 to the arm 28 to enable the angle with the scarfing direction to be varied, e.g. 80 degrees, whilst the arm 28 is hinged at 36 to permit adjustment of the angle of inclination α, e.g. 25 degrees. The torch 10 is kept at a constant distance from the side and upper surfaces 12, 30 by rollers 48, 22.
Patent GB-270761-A (GB)
Title: Improvements in or relating to sawing machines for stones
IPC: B28D1/06
Filed: 1927-05-09
Abstract: 270,761. Thiverny, D. May 8, 1926, [Convention date]. Sawing.-The rectangular saw-frame 2 of a stone-sawing machine is partly counterbalanced by weights 27 attached to a drum 22 on the same axle as drums 20 which sustain slides 4 from which the frame is hung by links 3. The reciprocation of the frame is effected by a crank 12 and connecting-rod 13, driven from an electromotor 6 or other source of power, and actuating a sliding frame 14 which engages the saw frame by means of vertical slides 28, 29. The saw blades are mounted between lateral extensions 31 of the frame 2, which surrounds the supporting framework, and an additional saw blade may, if desired, be attached to one end of the frame. The whole device may be arranged to run on wheels. A chain 39 and suitable gearing on the drum shaft 21 provides for hand adjustment of the height of the saw frame.
Patent GB-184775-A (GB)
Title: Improvements in railway rail ties & fasteners
IPC: E01B9/58
Filed: 1922-05-03
Abstract: 184,775. Pokorny, A. Aug. 16, 1921, [Convention date]. Sleepers, securing rails to; creeping of rails, preventing; rails.-Rails 2 are secured under the lips 3, Fig. 3, of sleepers 1 by a bar 4 pivoted centrally to the sleeper and having at each end an enlargement 6 for a spring 8 and block 9 with a serrated end engaging serrations 12 on the inner face of the rail web. The block 9 has a pin 11 projecting through a slot 10 in the part 6. The Specification as open to inspection under Sect. 91 (3) (a) comprises also an arrangement, Fig. 4, (Cancelled) in which a block 12 for each rail is secured to the sleeper 1<a> by three bolts 13, two of which pass through the rail flange to prevent creep, and an arrangement, Fig. 6, (Cancelled) in which the sleeper 1<b> has at each end two integral rail-engaging flanges 3<b>, bolts being dispensed with. This subject-matter does not appear in the Specification as accepted.
Patent GB-234114-A (GB)
IPC: C10J3/30
Filed: 1925-05-13
Abstract: 234,114. Bismarck-H³tte [Firm of], (Assignees of Stokowy, H.). May 13, 1924, [Convention date]. Ash-pits; grates.-The combustion chamber f of a producer is separated from the ash-pit by an arched floor g with peripheral openings, and a rotary grate or fuel-support h is arranged above the arch. A water-sealed ashpan i is fixed to the shaft h<1> rotating the grate, and air is supplied through a central pipe l.