baber/WOPTO huggingface dataset:
Patent GB-749440-A (GB)
Title: Improvements in or relating to electrical calculating equipment
Inventor: WEIR DONALD ADAMS
IPC: G06F7/504
Filed: 1952-12-09
Abstract: 749,440. Digital electric calculating-apparatus. STANDARD TELEPHONES & CABLES, Ltd. Dec. 9, 1952, No. 31170/52. Class 106 (1). In an electrical binary serial adder the carry condition is determined in response to a pair of binary ones in the same digital place of the two numbers to be added and is maintained until a pair of binary zeroes occur in the same digital place, and each digit of the sum is determined by a single evaluation involving the corresponding digits of the numbers being added and the presence or absence of the carry condition. In a practical embodiment two cold-cathode, gasdischarge tube trigger pairs F1, F2 are controlled by a plurality of diode gating arrangements in which the points A1 become positive and the points A0 are at earth potential for each " 1 " digit in the first number, these potentials being reversed for each " 0 " digit; the points B1 and BO are subjected to similar voltages in respect to the digits of the second number. The state of the trigger pair F2, in which only one tube can be conducting at a time, determines the voltages at C1 and C0 representing " carry 1 " or " carry 0." The development of these voltages is delayed slightly by the arrangement of rectifiers, resistors and capacitors at the cathodes of the tubes. The controlling gates include entry for a clock pulse " P," and are separated by buffer rectifiers MR5. Output signals representing the digits of the sum are taken at points D0, D1, at the cathodes of tubes F1. The sign of each number is indicated by " 0 "=plus or " 1 "=minus in the highest (i.e. last) digital place, and a pulse Pn is delivered at this time to restore the trigger pair F2 to " 0 " state if AO and BO appear also. Application of a positive voltage to the subtraction terminals SUB serves to convert the digit signals of a number entering on the pair of channels N1, N0 to a complementary representation at B1, B0, the cathodes of a hard valve trigger pair CF. In this case a " fugitive one " is added in by a signal at a terminal Sp; this is derived from the SUB signal and serves to register " 1 " in the carry-registering trigger pair F2 before the start of the next algebraic addition.
Patent GB-1275734-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: FRENCH TOM
IPC: B29C33/42
Filed: 1968-06-29
Abstract: 1275734 Moulding tyres DUNLOP HOLDINGS Ltd 26 June 1969 [29 June 1968] 31199/68 Heading B5A [Also in Division B7] A tyre moulding matrix comprises a plurality of ribs 2 for forming the main drainage groove of the tyre, a plurality of shorter pins 3 and a plurality of longer pins 4, the pins being so arranged that pattern produced thereby changes as the tread wears from a first pattern to a second pattern which is distinctively different from the first. The second pattern may form the letters of a word. In a second embodiment the patterns consists of slots produced by knife blades 8, 9 (Fig. 2). The bases of the longer pins 4 or knife blades 9 may be enlarged to form bulbous bases in the holes or slots. Wire letters may be attached to the knife blades by a weak adhesive or thin textile threads so that after moulding the letters remain embedded in the tyre tread.
Patent GB-440754-A (GB)
Title: Improvements relating to receptacles for tobacco ash
IPC: A24F19/04
Filed: 1934-10-31
Abstract: 440,754. Smokers' ash-receptacles. SALE, F., Progress Works, Summer Lane, Birmingham. Oct. 31, 1934, No. 31207. [Class 130] An ash-receptacle a has an aperture normally closed by a valve member g having a stem h passing through the base of the receptacle, so that the member g falls and opens the aperture when the receptacle is lifted off a supporting surface i. As shown, the stem h passes through a tube b which limits the downward movement of the member g. The latter engages an aperture in a removable lid c secured to the receptacle by means of interengaging projections d and recesses in the rims of the lid and the receptacle.
Patent GB-159669-A (GB)
Title: Improvements in and relating to vibration dampers, shock absorbers and the like
IPC: B62K25/16
Filed: 1919-12-13
Abstract: 159,669. Middleton, A. L. Dec. 13, 1919. Spring devices.-A shock-absorbing device for vehicles comprises a stirrup-shaped lever a pivotally mounted on a part of the frame d and provided with a hole e to receive a wheel-axle, the lever working in conjunction with a curved laminated spring f, one end of which is connected to a stud or bolt g protruding through an aperture l in the lever, the other end being coiled round a bolt h inserted in one of a number of holes i provided on the lever for adjusting the tension of the spring f. A stud j bears against the inner surface of the spring.
Patent GB-651694-A (GB)
Title: Production of coloured filaments and fibres
IPC: D01F6/62
Filed: 1948-12-03
Abstract: Coloured filaments and fibres are produced by spinning polyethylene terephthalate in which is dissolved an organic colouring matter stable at the temperature of the spinning process.  Suitable colouring matters mentioned include substituted aminoanthraquinones, for example 1 : 4 - di - p - butylanilino - 5 : 8 - dihydroxy-anthraquinone, and vat dyestuffs of the indigo, thioindigo and anthraquinone series, for example 6 : 61 - dichloro - 4 : 41 - dimethyl - thioindigo.  Many other dyestuffs are specified, and mixtures of dyestuffs may also be used.  Other substances, such as those described in Specification 504,714, may also be incorporated with the molten polyethylene terephthalate.  In one example, a mixture of 1 : 5 - dibenzoyl - amino - anthraquinone, 6 - p - toluidino - 3 - methyl - anthrapyridone and 1 : 4-di-(p-butylanilino)-5 : 8-dihydroxyanthraquinone is mixed with polyethylene terephthalate chips, dried at 160 DEG  C. under vacuum, and charged into a grid spinning apparatus at 270 DEG  C.  The spun yarn is stretched to 5.5 times its own length and bright green fibres of high fastness to wet treatments and to light are obtained. Specifications 527,532, 533,307, 596,688 and 610,137 also are referred to.  The Provisional Specification refers to the use of axine dyestuffs and contains an additional example.  Specifications 460,255 and 560,988 also are referred to.
Patent GB-709404-A (GB)
Title: Improvements in pipe coupling devices
Inventor: WEST ROBERT SCOTT
IPC: F16L19/05
Filed: 1952-12-11
Abstract: 709,404. Pipe joints. LAMONT & CO., Ltd., J. H. Dec. 11, 1952, No. 31373/52. Class 99 (1). In a joint in which a flared pipe end 9 is compressed on to a tapered olive or spigot 8 by a nut 3 and backing ring 12, the nut is of the conventional form having flats between radial end faces of which one is formed by an internal flange 6 having an outwardly tapered bore 11, and the backing ring has inner and outer conical faces and an external radial flange 12a which engages a recess 5 so as to retain the ring in the nut. The device is also applicable to the type of joint in which a conical-ended sealing ring is compressed on a cylindrical pipe end. Specifications 395,536, 560,248, and 578,501 are referred to.
Patent GB-360169-A (GB)
Title: Improvements relating to means for controlling the working pressure of hydraulic presses
IPC: B30B15/22
Filed: 1930-10-20
Abstract: 360,169. Hydraulic presses. SIEMPELKAMP, E., 69, Hohenzollernstrasse, and SIEMPELKAMP, E., 114, Bismarckstrasse, both in Krefeld, Germany, (trading as SIEMPELKAMP & CO., G.) Oct. 20, 1930, No. 31377. Convention date, May 31. [Class 69 (ii).] In an hydraulic press having a piston d, Fig. 1, working in a cylinder communicating with the press cylinder and adapted to operate means for stopping or byepassing the supply pump when a predetermined pressure is attained, the loading of the piston d is adjustable in relation to scales showing the size of the surface to be pressed and the reciprocal of the desired specific pressure thereon. The loading arrangement may comprise a weight g adjustable on a lever e relative to one scale, the fulcrum of the lever being adjustable relative to the other scale. In a modification, the lever fulcrum is fixed and the weight g is adjusted relatively to the appropriate scale on a rotatable drum n, Fig. 2. Forms are also described in which the weight is replaced by an adjustably tensioned spring.
Patent GB-1471665-A (GB)
Title: Dry strippable wall-coverings
IPC: C08K5/00
Filed: 1973-07-03
Abstract: 1471665 Foamed olefine polymers/antioxidant films IMPERIAL CHEMICAL INDUSTRIES Ltd 28 June 1974 [3 July 1973] 31565/73 Heading C3C A dry strippable wallcovering comprises a foamed film having 40-90% by volume of the foam cells as open cells and a bulk density of less than 0À5 g. cm.<SP>-3</SP>, the film comprising a blend of low density (viz. less than 0À934 g. cm.<SP>-3</SP>) polyethylene and a different crystalline olefine homopolymer or copolymer of two or more olefines, and containing 0À05-0À5% by weight of an anti-oxidant. In the examples blends of the olefine polymer, titanium dioxide; 2 - hydroxy - 4 - octyloxy benzophenone or 2,2<SP>1</SP>,4,4<SP>1</SP> - tetrahydroxy benzophenone as U.V. light stabilizer; and tris-(3,5-di-t-butyl-4- hydroxybenzyl) - isocyanurate, pentaerythritol tetra - #- 3,5 - di - t - butyl - 4 - hydroxyphenyl propionate, 1,1,3 - tris - (2 - methyl - 5<SP>1</SP> - tbutyl - 4 - hydroxyphenyl) - butane or dilauryl thiodipropionate as anti-oxidant were extruded into foamed films using pentane as blowing agent and nitrogen as nucleating agent by the process of Specification 1,220,053 and the films were optionally discharge treated.
Patent GB-976168-A (GB)
Title: Electric motor brush-box
Inventor: CROCKETT DAVID ROBERT
IPC: H01R39/41
Filed: 1962-08-17
Abstract: 976,168. Brush holders for electric motors. AMP Inc. July 26, 1963 [Aug. 17, 1962], No. 31614/62. Heading H2A. An electric motor brush-box comprises a generally rectangular cross-section sheet metal body 1 defining a channel from whose base 3 are struck out in an opposite direction to the channel sidewalls 2 a pair of lugs 4 each of which forms one sidewall of a common U- section ferrule portion for crimping about an electrical conductor. The body also has a struckout resilient tongue 7 by which it is retained in an insulating brush holder 8 provided with a ferrule-receiving channel 12.
Patent GB-651698-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/02
Filed: 1948-12-07
Abstract: 651,698. Suction cleaners. BRITISH VACUUM CLEANER & ENGINEERING CO., Ltd., and BARBER, D. MURRAY-. Dec. 7, 1948, No. 31684. [Classes 8(i) and 8(ii)] A suction cleaning apparatus comprises a tubular casing 1, Fig. 1, supporting a motor driven fan 2 in its upper portion, a downwardly-opening filter bag 8 mounted in the lower portion of said casing and extending upwardly from the lower end of the casing, a cyclone chamber 12 surrounding the portion of the casing accommodating the filter bag and in open communication with said bag 8, said chamber 12 having a tangentially disposed inlet 17 adapted for the attachment of a flexible hose 18, Fig. 3, carrying a suction nozzle, and a container 14 below the cyclone 12 chamber and bag 8 for collecting the particles and dust removed from the air passing through the apparatus. A motor control switch 26 is mounted on the nozzle end of the suction hose and the nozzle comprises a tubular member 23 slotted or notched at the end 23 to prevent closure thereof by the bottom of a hole being cleaned of swarf produced during machining operations. An adjustable vent may also be provided in the body of the nozzle.
Patent GB-1351343-A (GB)
Title: Methods of preparation and use of a vaccine from bacteroides nodosus
IPC: A61K39/02
Filed: 1971-07-06
Abstract: 1351343 Vaccine preparation NEW ZEALAND INVENTIONS DEVELOPMENT AUTHORITY 6 July 1971 [6 July 1970] 31684/71 Heading A5B [Also in Division C6] A process for preparing a vaccine effective against Bacteroides nodosus Beveridge (Mraz) infection in sheep and other ruminant animals involves anaerobically cultivating the microorganisms in the presence of carbon dioxide in a nutrient culture medium containing separately added L-arginine or a salt thereof e.g. the monohydrochloride, recovering from the cultured medium antigens that induce protection against Bacteroides nodosus infection and incorporating the recovered protective antigens in a vaccine in a conventional manner. The vaccines may be prepared from the bacterial cells, the supernatant fluid or the two combination.
Patent GB-1428114-A (GB)
Title: Collapsible articles
IPC: A47F5/13
Filed: 1972-07-06
Abstract: 1428114 Racks MODERN METHODS & MATERIALS Ltd 4 July 1973 [6 July 1972] 31728/72 Heading A4H [Also in Division F2] A shoe rack or similar piece of furniture consists of upright members 10 supporting a series of transverse members 14, 16, 18 having at their ends resilient hook formations 22 which are inserted into socket formations 30 each constituted by a pair of spaced elements forming apertures of unlike size which define a predetermined degree of taper which is more gradual than that of the hook formations prior to insertion, so that upon insertion the hooks are held tightly in the socket formations. The shoe rack shown has uprights formed from wire each carrying three socket formations 30, each formation consisting of two lengths of wire bent as shown so that each wire provides a socket defining portion at each of its upper and lower ends. The unlike spacings of the upper and lower ends of the two wires defines a taper such that resilient hook portion 22 of each end of each of the transverse members 14, 16, 18 fits tightly in the corresponding socket formation. Each of the members 14, 16, 18 is provided with shoe supports 20 and is formed from wire as shown.
Patent GB-1430221-A (GB)
Title: Process for recovering resorcinol and hydroquinone in mixture
IPC: C07C37/72
Filed: 1973-07-04
Abstract: 1430221 Recovering resorcinol and hydroquinones SUMITOMO CHEMICAL CO Ltd 4 July 1973 [5 July 1972] 31870/73 Heading C2C The invention comprises a process for recovering a mixture of resorcinol and hydroquinone from a solution resulting from cleavage of oxidation products of diisopropylbenzene with an acidic catalyst and successive distillation of the cleavage products to remove components having a lower boiling point and components having a higher boiling point than the mixture of resorcinol and hydroquinone, which comprises treating the solution at 0-150‹ C. with at least one organic solvent which is an aromatic hydrocarbon, aromatic hydrocarbon having at least one C 1  to C 4  alkyl substituent, or aliphatic hydrocarbon, or with a mixture of at least one organic solvent as defined above and water.
Patent GB-937131-A (GB)
Title: Variable-speed gear for draft or like control in the continuous processing of materials
Inventor: GROGAN GEORGE
IPC: D02J1/22
Filed: 1958-10-07
Abstract: 937,131. Feeding webs. COTTON, SILK & MAN MADE FIBRES RESEARCH ASSOCIATION. Oct. 5, 1959 [Oct. 7, 1958], No. 31911/58. Class 100 (1). [Also in Group XXIV] A variable speed gear for use in a processing machine such as a textile sizing frame wherein a textile material passes between two sets of rollers and stretch is applied or shrinkage allowed during processing by adjusting the relative speeds of the two sets of rollers, comprises in one form a shaft 11 fast with a driving roller and carrying a sun gear 13 meshing planet pinions 18, 22 mounted in a carrier 15, further planet pinions 19, 23 fast with the planet pinions 18, 22 meshing a sun gear 14 on a shaft 12 fast with a driven roller, the driving shaft carrying a sprocket 26 driving through a chain to a sprocket 27 fast on the input shaft of a continuously-vaiiable-ratic expanding wheel positive gear 29, in turn driving through a sprocket 28, &c. to the carrier 15 which is itself in the form of a further sprocket. Manual adjustment of the continuously-variable ratio gear 29 by means of a knob 30 controls the ratio between the shafts 11, 12 and the associated rollers, a dial 31 indicating the ratio. In another form, Fig. 3 (not shown), the expanding wheel gear 29 is replaced by a continuously-variable ratio friction disc gear, and the chains, sprockets, &c. are replaced by trains of meshing gears (see Group XXIV).
Patent GB-1402014-A (GB)
Title: Linear motor
IPC: H02K41/025
Filed: 1972-07-07
Abstract: 1402014 Endless belt conveyers SIEMENS AG 7 July 1972 [8 July 1971] 32038/72 Heading B8A [Also in Division H2] The rotor of a linear induction motor comprises a flexible strip of insulating material having electrical conductors incorporated therein, portions of the conductors being non- permanently connected together. The rotor forms a flexible conveyer belt F and the conductors take several alternative forms. They may be coils Sp having a length equal to the stator S pole pitch #p, the coils being of uninsulated copper wire such that the turns are electrically interconnected in a flexible manner. The coils may be arranged parallel to the direction of motion either end-to-end (Fig. 1) or overlapping (Fig. 2, not shown) or may be inclined to the direction of motion (Fig. 3, not shown). In another embodiment (Fig. 4, not shown) two braided or stranded wires run generally parallel along the two edges of the belt, each crossing zig-zag fashion to the other edge at distances equal to the stator polepitch. Alternatively the conductors may form a flattened braided tube (Fig. 5, not shown). Where the conductors connect together, they may be coated with metal having superior corrosion resistance and/or electrical properties. They are also preferably surrounded by a flexible tension absorbing material Z.
Patent GB-483932-A (GB)
Title: Improvements in or relating to wringing machines
IPC: D06F45/16
Filed: 1937-12-18
Abstract: 483,932. Clamps. ACME WRINGERS, Ltd., and BURT, J. W. Dec. 18, 1937, No. 32104/36. [Class 61 (ii)] [Also in Group VIII] A wringing-machine clamp bracket is provided. with a jaw 4 having a groove 5 of approximately dovetail form in cross-section with an arcuate inner face, a similarly shaped rubber pad 6 having a plane outer face being accommodated in the groove. The adjustable jaw 4a is provided with a rubber pad 6a.
Patent GB-224747-A (GB)
Title: Improvements in brakes for controlling the swinging out and/or the lowering of a life-boat
IPC: B63B23/18
Filed: 1923-12-22
Abstract: 224,747. Fatrweather, H. G. C., (Rotterdamsche Machinefabriek Braat). Dec. 22. 1923. Boat-lowering gear.-A centrifugal brake for controlling the swinging out and lowering of a lifeboat comprises a braking-surface 5 fixed on the winch coaxially with respect to the main shaft 3 on which is mounted a spider 8 carrying weighted brake shoes 15 secured by blade springs 10 and adapted to be thrown outwards by centrifugal force into contact with the braking surface. Essential features of the construction are that the springs are of U-formation, and secured within the springs are blocks 13 which support the springs when the shoes 15 are pressed against the braking- surface. Specification 207,498 is referred to.
Patent GB-446298-A (GB)
Title: Improvements relating to display cabinets and shelving
IPC: F16B12/30
Filed: 1934-11-10
Abstract: 446,298. Cabinets. PARNALL & SONS, Ltd., Soho Foundry, Birmingham, and GABB, A. H., 3, Western Road, Horfield, Bristol. Nov. 10, 1934, No. 32391. [Class 52 (i)] A sheet-metal back-plate 6 for a cabinet or like structure is attached to inwardly directed flanges on angle iron uprights by screw studs 5 projecting from the uprights and passing through elongated holes in the back plate and fitted with nuts 7.
Patent GB-1002483-A (GB)
Title: Shaft sealing device adapted to be inserted into a bore
IPC: F16J15/3204
Filed: 1964-08-10
Abstract: 1,002,483. Shaft seals. W. SCHAEFFLER, and G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER O.H.G.]. Aug. 10, 1964 [Aug. 13, 1963], No. 32427/64. Heading F2B. A shaft seal comprises a sealing disc 1 of elastic material held in a U-shaped crosssection metal disc 2 the limbs 4, 5 of which are parallel, or substantially parallel, to one another and inclined relatively to the seal axis 6. When the seal is inserted in a bore 12, Fig. 5, of a shaft housing it may be deformed, as shown in the lower half of the figure, by a tool 15 or other means so that the outer periphery of the disc 2 is seated firmly against the bore and to assist such seating the outer periphery of the disc may have a sharp edge 7 or be knurled. The disc 1 has a sealing lip 3.
Patent GB-776153-A (GB)
Title: Improvements in electrical connecting plugs
Inventor: MILNER REGINALD CONRAD
IPC: H01R13/68
Filed: 1953-11-23
Abstract: 776,153. Two-part couplings. ENFIELD CABLES, Ltd. Nov. 17, 1954 [Nov. 23, 1953], No. 32461/53. Class 38 (1). The moulded rubber body 1 of a fused plug has a bore 8 extending from the rear face of the plug and terminating in an elongated opening 10 in the pin-carrying face 6. Slidable in the bore 8 is a cylindrical fuse-holder 11 having a transverse bore 12 to receive a cartridge fuse 4. After insertion of the fuse, the holder is pressed into the plug from the position shown until the end caps of the fuse engage contacts 9, the lower end of the holder forming a cover 13 for the opening 10. To eject the holder, pressure is applied to the cylindrical end thereof, a flange 14 engaging a shoulder 15 in the body to limit the movement of the holder. The body of the plug may be made of rigid material and according to the Provisional Specification the fuseholder may be held in the plug by a spring.
Patent GB-897204-A (GB)
Title: Preparation of chromium carbonyl
Inventor: SHIPMAN LESLIE SEED ALAN JOHN
IPC: C01G37/00
Filed: 1959-09-25
Abstract: Chromium hexacarbonyl is prepared by treating a chromium/iron alloy, containing less than about 40% by weight of chromium, in the presence of an aromatic sulphonic acid, e.g. b -naphthalenesulphonic acid, a substituted b -naphthalenesulphonic acid, or benzenesulphonic acid, and of an alkali metal (e.g. sodium or potassium) hydroxide, with CO at temperatures between 200 DEG C. and 300 DEG C. and pressures above 500 atmospheres, preferably between 2,000 and 3,000 atmospheres.  The CO must be free from oxygen and the b -napththalene-sulphonic acid is advantageously freshly prepared.  In Example 1, chromium steel turnings containing 12 to 14% by weight chromium are heated in a silver-lined pressure bomb with b -naphthalene-sulphonic acid and sodium hydroxide at 250 DEG C. under a pressure of 3,000 atmospheres of oxygen-free CO for 10 hours.  The product is steam-distilled and the solid chromium hexacarbonyl separated from the liquid iron pentacarbonyl by filtration.  Examples 2 to 4 are similar.  The preparation of chromium carbonyl by reacting CO with chromic chloride in the presence of Li, Na, K, a Grignard reagent, or lithium aluminium hydride in a solvent such as pyridine or ether is referred to.  Iron, cobalt, nickel, rhodium, osmium, ruthenium, iridium, vanadium, and manganese carboxyls are also referred to.  The Provisional Specification also refers to the use of chromium itself or a mixture thereof with another metal, and of naphthoic and picric acids.  Rhenium carbonyl is also referred to.
Patent GB-383431-A (GB)
Title: Improvements in polyphase current distribution circuits for mercury vapour rectifiers
IPC: H02M7/06
Filed: 1931-11-25
Abstract: 383,431. Rectifying alternating current. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Nov. 25, 1931, No. 32718. Convention date, Jan. 15. [Class 38 (ii).] In order to ensure under light load conditions such current distribution in the anodes of a polyphase mercury vapour rectifier g that at all times two ariodes are conducting, the transformer p feeding the rectifier is additionally loaded with saturated core chokes d providing a circuit for third harmonic currents. The chokes may be connected to an auxiliary winding h on the main transformer cores, or between phases of the main secondary, Fig. 3 (not shown). The invention may also be used for securing overlap of the conducting periods of the anodes in arrangements in which the main transformer windings are in zig-zag or other connection which would not normally produce such overlap.