baber/WOPTO huggingface dataset:
Patent GB-301027-A (GB)
Title: Improvements in talking machines
IPC: H04R1/16
Filed: 1928-11-20
Abstract: 301,027. Barthelemy, R., and Gondet, H. Nov. 23, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Gramophone pick-ups ; diaphragms. - Sound vibrations from a record are transmitted to an electromagnetic or microphonic pick-up through a medium such as glycerine and alcohol enclosed between a diaphragm actuated by the, stylus-bar and a diaphragm forming the armature of a magnetic pick-up or connected to a plate of the microphone, the object being to eliminate vibrations higher than those of acoustic frequency and needle scratch, and also to avoid reaction of the emitting or loud-speaker diaphragm on the pickup diaphragm. Fig. 1 shows an electromagnetic pick-up with diaphragm armature M<1> and a spaced diaphragm M<2> connected with the stylus arm, the space L between the diaphragms being filled with the glycerine or other liquid which may be soaked in spongy material or sheets of paper. The varying currents set up in the windings of the coils S on the permanent magnet may be amplified by a valve system, Fig. 2, wherein a condenser C in the circuit of the coils S assists in the elimination of high-frequency currents.
Patent GB-184415-A (GB)
Title: Improvements in hopper dredgers, hopper barges and the like
IPC: B63B35/30
Filed: 1921-12-19
Abstract: 184,415. Simons & Co., Ltd., W., Brown, W., and Brown, W. Dec. 19, 1921. Dredgers.-In hopper dredgers and hopper barges fitted with trunk valves as described in Specification 14591/15, a construction of valve seat which facilitate ready renewal consists in extending the sides of the hopper 1 to the ship's bottom, the lower part of the walls being vertical and leaving a rectangular passage in the shell plating. A rectangular plate carrying a valve seating 6 is supported in the passage between upper and lower angle-irons 4, 5. Renewable wear-pieces 7 extend round the lower edge of the rectangular passage.
Patent GB-446961-A (GB)
Title: Method of and apparatus for producing hollow metal bodies
IPC: A47G1/20
Filed: 1935-12-09
Abstract: 446,961. Expanding and corrugating tubes. ROECKNER, M., 23, R³ckertstrasse, M³lheim, Ruhr, Germany. Dec. 9, 1935, No. 34063. Convention date, Dec. 10, 1934. [Class 83 (iv)] In producing metal tubes of large diameter from heated small diameter tubular blanks by centrifugal force, the interior of the blank is loaded with balls or rods to allow of a reduction in the speed of revolution corresponding to the increase in the unit mass of the blank. The blank A is loaded with shot &c. B, centred by pivoted arms E and closed by end plates C pressed by conical cams L. The tube is rotated by supporting rollers G and the centrifugal force causes the expansion of the tube. Rollers M limit the expansion and may be shaped to impart longitudinal corrugations to the tube. In a modification the ends of the tube are expanded to the final diameter before the centrifugal expansion is effected.
Patent GB-931881-A (GB)
Title: Improvements in or relating to injection moulding machines
IPC: B29C45/30
Filed: 1960-10-05
Abstract: 931,881. Electric heating elements. BRITISH INDUSTRIAL PLASTICS Ltd. Oct. 5, 1960 [Oct. 15, 1959], No. 34092/60. Class 39 (3). [Also in Group V] An electric heating element for an injectionmoulding machine (see Group V) comprises a tubular metal sheathing 25, housing a helicallycoiled resistance wire 26, and having an insulating filling 27 of a ceramic material or asbestos wool. The metal sheath may be used as the electric return.
Patent GB-754088-A (GB)
Title: Improvements in or relating to devices which include secondary-emission electronic tubes for independently establishing and maintaining one (or more) electronic signal transmission path (s)
IPC: H03K17/54
Filed: 1954-11-25
Abstract: 754,088. Electric-discharge tube switching circuits. TELEFONAKTIEBOLAGET L.M. ERICSSON. Nov. 25, 1954 [Dec. 4, 1953], No. 34263/54. Class 40 (6). Fig. 3 shows a switching circuit in which the individual pulses of a time-multiplexed pulse train 1, 2, 3 ... n from a source M are switched to outputs T I, T II, &c. in dependence upon the voltages applied to the dynodes of secondary-emission electric discharge-tubes I, II, &c. When the D.C. voltage applied to a given dynode in a tube which has been rendered conductive by a voltage applied between its control-grid and cathode from switch circuit S I, S II, &c. is near the lower point of stability S1 (Fig. 2), the application of a signal to the dynode produces no corresponding output at the collector electrode. When the D.C. voltage is near the upper point of stability S3 (Fig. 2), a signal applied to the dynode produces an output at the collector. Thus by selection of the D.C. supply voltages Vo1 ... Von and the dynode loads Ra1 ... Ran selected pulses from the multiplexed pulse source M will generate an output pulse at the collector output terminals T I, T II, &c. so that any number of input sources may be connected to a given output or any number of outputs connected to a given input.
Patent GB-410878-A (GB)
Title: Improvements in or relating to metallic foil products and their manufacture
IPC: D21H19/04
Filed: 1932-12-03
Abstract: 410,878. Compound sheet materials. CROWDEN, G. P., 7, Heather Walk, Edgware, Middlesex. Dec. 3, 1932, No. 34318. [Class 140.] A compound sheet material is made by applying metal foil to both sides of a sheet of asbestos paper or asbestos felt which has been coated on both sides with molten bitumen, and uniting the layers by pressure. Heat may also be used if the bitumen has been allowed to solidify, for example the material may be passed first through heated and then through cold rollers. Specification 307,144, [Class 140], is referred to.
Patent GB-1077737-A (GB)
Title: Elastic-thermoplastic copolymers with good thermal-and light-stability
Inventor: OTT KARL-HEINZ
IPC: C08L25/12
Filed: 1964-08-21
Abstract: Thermoplastics moulding materials consisting of polymerized conjugated diene and copolymerized styrene and acrylonitrile (or alkyl derivatives thereof) are stabilized by means of 0.1-4% by weight of the materials of a mixture of (a) 1-80% of 2,21-methylene-bis-4-methyl -6-cyclohexylphenol and (b) 99-20% of zinc sulphide.  The thermoplastic materials may be formed by blending the diene polymer with a styrene-acrylonitrile copolymer, or by grafting styrene and acrylonitrile on to the diene polymer and, if required, blending the product with separately prepared styrene-acrylonitrile copolymer.  Examples describe stabilizing thermoplastic materials made by latex-grafting styrene and acrylonitrile on to polybutadiene and blending the products with separately prepared styrene-acrylonitrile and alpha-methylstyrene-acrylonitrile copolymers.
Patent GB-1071908-A (GB)
Title: Smoke exhauster
IPC: F23L17/06
Filed: 1965-08-11
Abstract: 1,071,908. Chimney cowls. L. SPINELLI. Aug. 11, 1965, No. 34332/65. Heading F4J. A chimney cowl comprises a vertical pipe 1 with upwardly and outwardly extending walls 3, 4 forming thermal chambers 21, 22 and serving to deflect air currents A, B into airflow passages 16, 17 provided with louvres 12-15 to deflect additional air currents C, D, E, F inwardly and upwardly and thus draw the flue gases X, Y, out through openings 18, 19. A cover arranged above the pipe 11 is bent downwardly and outwardly from its centre and extends beyond the outer extremities of the walls 3, 4 to ensure condensates are fed into the air-flows. Heated air I, H rising from the thermal chambers 21, 22 adds to the chimney pull.
Patent GB-344040-A (GB)
Abstract: 344,040. Calculating-apparatus. WOODS, W. B., 225, Tottenham Court Road, London.-(Ellis Adding Typewriter Co.; 338, Elizabeth Avenue, Newark, New Jersey, U.S.A.) Nov. 29, 1929, No. 36589. [Class 106 (i).] Adding and subtracting apparatus.-The control of a calculating-machine for subtracting is effected by the carriage-position or by the usual control key, each being capable of setting the controlling-mechanism independently of the other. The paper carriage bar 1 carries the adjustable stop 2 adapted to depress a lever 4 and so, through a link 8, lever 12 and link 15, rotate a lever 14 clockwise to shift the usual subtraction-setting bar 16. The subtraction key 18 may also be depressed manually to produce this same motion of the lever 14, a spring-urged latch 19 then entering a notch k in the key-stem and carrying the lever 14 with it by means of an overlapping ear d. To permit restoration of the bar 16 by depression of the sub-total or total key 24, 25, acting on lever 14 through a lever 21, despite the position of the carriage, a yielding spring connection is provided at 10 between the lever 4 and the link 8. Specification 28253/08, [Class 106, Registering &c.], is referred to.
Patent GB-852478-A (GB)
Title: Improvements in or relating to straight-bar knitting machines
IPC: D04B11/32
Filed: 1957-11-05
Abstract: 852,478. Knitting-machines. MONK (SUTTON IN ASHFIELD) Ltd., S. A., and MONK, B. A. Jan. 16, 1959 [Nov. 5, 1957], No. 34408/57. Class 74 (2). Mechanism is provided in a straight-bar machine for carrying a welt transfer bar 1, having a preformed welt thereon, from a conveyer 4 and delivering it into the slides 14 of automatic welt transferring mechanism, and for carrying the empty bar back from the slides, after the welt has been transferred to the needles, and repositioning it on the conveyer. The conveyer 4 has brackets 3 supporting in an open ended slot the ends of a welt bar for each division of the machine. The conveyer after having been loaded at a loading point conveys the welt bars so that one is positioned above each needle bar. In this position the ends of each welt bar is engaged by a slotted carrier 1-1 pivoted to a chain 6 and suitably weighted so that as the chain moves around sprockets 7, 8, 9, driven from an electric motor through a shaft 10 carrying sprocket 7, the bar 1 is lifted from the conveyer brackets 3 and carried down to the slides 14 in which it engages in slots. The chain continues to move downwardly to disengage the carriers from the bar and until the carriers are clear of the welt transferring mechanism, whereupon the motor is stopped and the chain remains stationary. The welt transferring operation is then completed and the slides return to their original position carrying the empty welt transfer bar. The motor is then driven in the reverse direction and the carriers 11 again engage the ends of the welt bar disengaging them from the slides 14 and carrying it back to the conveyer and depositing it in the brackets 3. The electric motor may be controlled from the pattern chain of the machine or from a separate pattern chain or control drum and may transmit its drive through a friction clutch. Also limit switches may be incorporated in the drive to the shaft 10, which may be a chain drive, to control the movement of the carrier chains 6. Specification 814,107 is referred to.
Patent GB-777744-A (GB)
Title: Improvements in and relating to a self-winding time-piece
IPC: G04B5/14
Filed: 1954-11-29
Abstract: 777,744. Watches. TAVANNES WATCH CO., SOC. ANON. Nov. 29,1954 [Nov. 28,1953], No. 34492/54. Class 139. A self-winding time-piece comprises a cam controlled by an oscillatory weight, two pivoted levers each having a roller spring urged to engage the cam, a pawl carried by each lever to actuate a ratchet in the winding train. In the first embodiment the oscillating weight 1, Figs. 1 and 2, is connected to a plate 3 which is mounted on a spindle 2 supported by bearings 4, 5 in the centre of the movement. A central heart-shaped cam flange 3a of the plate 3 co-operates with two rollers 10 carried by pivoted levers 11 urged counterclockwise by springs 13. Each lever 11 carries a double-toothed pawl 15 urged by a spring 17 into engagement with a gear 16 mounted on a plate 7 fixed to a bridge 6. The gear 16 drives the barrel ratchet 40 through gears 18, 19. In the second embodiment, Fig. 3, a plate 21a fixed to the weight 21 carries a ring 22 the internal surface of which is heartshaped and co-operates with two rollers 23 each carried by a lever 24 urged counterclockwise by a spring 25. Each lever 24 carries an actuating pawl 26. In another example, Fig. 5 (not shown), the arrangement of cam and levers is similar to that of Fig. 1 but each pawl actuates a separate ratchet coaxial with a pinion which meshes with a centrally located gear of the winding train.
Patent GB-387084-A (GB)
Title: Improvements in and relating to golf and the like balls and the materials therefor
IPC: A63B37/08
Filed: 1931-12-12
Abstract: 387,084. Golf balls. DUNLOP RUBBER CO., Ltd., 32, Osnaburgh Street, London, TWISS, D. F. and NEALE, A. E. T., Fort Dunlop, Birmingham. Dec. 12, 1931, No. 34496. [Class 132 (ii).] The liquid core of a golf ball is produced by employing two or more substances which undergo mutual liquefaction when brought into contact one with another. The core is formed by filling hemispherical or part spherical containers each with one of the substances, covering the substance with a film of gelatine or rubber solution and uniting, the containers forming the permanent spherical encasement for the ball. The substances are preferably so chosen that liquefaction takes place at normal temperatures. One substance may be an aqueous gel, for example, silicic acid, agar agar, starch, starch acetate, gum tragacanth, algin, Iceland moss, gelatine, pectin, or other suitable material, in which event the other substance or mixture of substances employed is selected for its marked solubility in water and preferably contains an acid radical of the lyotropic series, for instance sodium thiosulphate, sodium acetate, ammonium chloride, ammonium thiocyanate or potassium thiocyanate. Alternatively the substances may comprise camphor and either salol or a dihydroxy benzene such as catechol. The casing is formed of a substance impervious to the substances used or is smeared internally with an impervious substance such as nitro- or acetvl-cellulose. Examples are given using a 10 per cent gelatin jelly as one substance, and ammonium nitrate or a mixture of ammonium and zinc nitrates as the other. Specification 361,628 is referred to.
Patent GB-1515389-A (GB)
Title: Vehicle headlamps
IPC: F21V5/00
Filed: 1975-08-20
Abstract: 1515389 Vehicle headlamps CIBIE PROJECTEURS 20 Aug 1975 [23 Aug 1974] 34626/75 Heading F4R A set of headlamps comprises at least one right-hand and at least one left-hand headlamp having optical axes which are substantially parallel to one another and to a central longitudinal plane extending between them, the headlamps having front lenses which are symmetrically inclined to the central plane and have regions of prismatic elements for lateral spread of the light beam, each element having a pair of mutually inclined surfaces one of which is inclined to the optical axis and the other of which is substantially parallel to the optical axis.
Patent GB-1401984-A (GB)
Title: Methylsulphonated amine derivatives
IPC: D06M13/322
Filed: 1972-07-25
Abstract: 1401984 Leather treatment SANDOZ Ltd. 25 July 1972 [27 July 1971] 34704/72 Heading C6C [Also in Divisions C2 and D1] Textiles of natural or synthetic fibres, leather and paper are treated, to provide softness, antistatic soil repellancy and bactericidal properties with a compound of Formula:- in which R is a C 5-22  hydrocarbon radical which may be substituted, R 1  and R2 are each H or C 1-4  alkyl which may be substituted, provided that at least one of R2 and R 1  or the R 1 's is hydroxyalkyl, carboxyalkyl, CH 2 SO 3 -M<SP>+</SP>, (CH 2 CH 2 O)pH, (CH 2 CH(CH 3 )O)pH, CH 2 CH 2 CN or CH 2 CH 2 CONH 2 , p is 1-10, X is CONH, COO, O or S, m is 0-6, each n is 1-8, a is O or 1, and M<SP>+</SP> is H<SP>+</SP>, an ammonium cation or an equivalent of a metal cation (with the proviso that when X is CONH then m is not zero), or with a quaternary ammonium derivative thereof (see Division C2). These compounds are also of use as fat liquoring agents for leather.
Patent GB-1465647-A (GB)
Title: Convulcanization of conjugated diene-containing butyl with  halobutyl and butyl rubber
IPC: C08L23/22
Filed: 1974-08-07
Abstract: 1465647 Curable rubber blends EXXON RESEARCH & ENG CO 7 Aug 1974 [31 Aug 1973] 34748/74 Heading C3P Curable blends comprise (1) 5 to 95 weight per cent of conjugated diene-containing butyl rubber and (2) 95 to 5 weight per cent of butyl rubber or halogenated butyl rubber. (1) may be derived by dehydrohalogenating halogenated butyl rubber. The halogenated butyl rubber may be chlorinated or brominated. The compositions may contain carbon black and may be cured by heating with sulphur-containing curing systems or with polyfunctional dienophiles, e.g. polyacrylic and polymethacrylic esters of polyols. The compositions have high green strengths and may be used for making vehicle tyre inner tubes.
Patent GB-582480-A (GB)
Title: An arrangement for separating materials, especially dust or the like from air or gases containing dust
IPC: B01D45/14
Filed: 1938-11-29
Abstract: 582,480. Centrifugal dust separators. LOFTHEIM, T. B. Nov. 29, 1938, No. 34802. [Class 23] The separator comprises conical compartments separated by blades on a central rotating shaft, dust-laden gas passing longitudinally through the compartments, the cross-sectional areas of which increase with the distance from the axis of rotation. Fig. 3 shows one form in which each element of the rotor has radial arms carrying blades 14, the elements, including a casing ring 13, being driven by a shaft 16. Dust-laden gas enters at 9 and clean gas is delivered through an outlet 25. The gas flow may be reversed. Dust particles are discharged through slots 15 into a chamber 18 which may lead to a single outlet 19, or a number 20-24. A guide-piece 17 preferably does not rotate. In a further arrangement, Figs. 4 and 5, the elements are provided with spiral-shaped guide walls forming cone-like channels arranged approximately radially around the shaft 35 in a rotating housing 31. Dust particles leave through slots 34 and clean gas through outlets 30 leading to a housing 32.
Patent GB-1508254-A (GB)
Title: Voltage dependent resistor and its manufacturing process
IPC: H01C7/102
Filed: 1976-08-20
Abstract: 1508254 Varistor MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 20 Aug 1976 34908/76 Heading C1J [Also in Division H1] A varistor comprises a polycrystalline high resistance layer 2 including at least zinc silicate and/or zinc antimonate formed on a sintered body 1 consisting mainly of zinc oxide and itself having non-linear voltage-dependent properties, and a non-crystalline insulating layer 3 formed on the polycrystalline layer 1. A mixture containing silicon and antimony oxides, carbonates or hydroxides is applied to the zinc oxide-containing body 1 which is fired to sinter the body I and to form the compounds of the layer 2. A paste containing glass frit is applied on the layer 2 and baked to form the insulating layer 3. Various specified metal oxides may be included in the zinc-oxide containing body I and the polycrystalline high resistance layer 2 e.g. Bi 2 O 3 , CoO, MnO and Sb 2 O 3 . The layer 3 protects the varistor from contamination by moisture or chemically active atmospheres.
Patent GB-613852-A (GB)
Title: High pressure shut-off valve
IPC: F16K5/18
Filed: 1945-12-27
Abstract: 613,852. Rotary valves. DEHN, S. G. (Parker Appliance Co.). Dec. 27, 1945, No. 34967. [Class 135] In a rotary plug valve the plug has a rectangular recess 28 for a sealing element comprising a slidable rectangular block '29 with a curved face 30 to engage the plug bore 9 and a recess 31 to accommodate an axially slidable disc 34. The block 29 and the disc 34 may be pressed apart by a spring 36 accommodated in a pressure chamber 32 formed by recesses in the block and the disc. An aperture 33 is formed in the block 29 and an aperture 39 may connect the back of the disc with the passage 11 which is off-set from the axis of the plug. In the closed position of the valve, if the curved face 30 is exposed to the pressure side thereof, pressure fluid entering by the aperture 33 acts on the base of the recess 31 to keep the valve sealed. The recess 31 is slightly greater in depth than the disc 34. If, however, pressure fluid enters by the other side of the valve, it leaks round the curved surface of the plug or enters by the aperture 39, if provided, into the back of the recess 28 and acts on the full area of the block 29 and the disc 34 to seal the valve. A sealing ring 38 is provided in a groove in the disc 34 and similar sealing rings 15, 26 are provided to seal the lower end of the plug and its stem 21 respectively. The plug rotates against end bearing rings 19, 20 and bushings 17, 22 are provided for a trunnion pin 18 and the stem 21 respectively. Specification 589,849 is referred to.
Patent GB-1030533-A (GB)
Title: Austenitic stainless steel alloy
IPC: C22C38/58
Filed: 1964-08-26
Abstract: A completely austenitic stainless steel has the following percentage composition: .Cr.12-30 .Ni.6-30 .Mn.up to 14 .C.up to 0.2 .Si.up to 1 .Mo.up to 5 .Cu.up to 3 .N.0.06-0.2 .B.0.0005-0.01 .Nb.0.005-0.04 Mo may be substituted by twice its weight of W and Nb may be substituted by twice its weight of Ta.
Patent GB-490043-A (GB)
Title: The manufacture of ortho- and para-n-substituted aminoarylsulphones
Filed: 1937-12-21
Abstract: N-substituted o- or p-aminoaryl sulphones are obtained by the action of primary or secondary amines on halogenated sulphones of the formula RSOR1, where R is an aryl radicle containing halogen in o- or p-position to the sulphone group, and R1 is an alkyl, aralkyl or aryl radicle.  Further substituents, e.g. alkyl, oxyalkyl or aryl groups, or additional halogen atoms, but not nitro groups, may also be present.  If the radicle R contains halogen both in m-position and also in o- or p-position to the sulphone group, the halogen in m-position is unaffected by the process, and in this case N - substituted halogenamino sulphones are obtained.  Examples are given in which (1) 4-chlorophenylmethyl sulphone and methylamine yield 4-methylaminophenylmethyl sulphone; 3 : 4 - dichlorophenylmethylsulphone similarly yields 3-chloro-4-methylaminophenylmethyl sulphone, while 3 : 4-dichlorophenylmethyl sulphone and ethanolamine yield 3-chloro - 4 - oxyethylaminophenylmethyl sulphone; (2) 4-chlorophenylmethyl sulphone and dimethylamine yield 4-dimethylaminophenylmethyl sulphone; (3) 2 : 5 - dichlorophenylmethyl sulphone and aniline yield 2-phenylamino-5-chlorophenylmethyl sulphone; if p-toluidine or b -naphthylamine is used in place of aniline, 2-p-tolylamino- or 2-b -naphthylamino-5-chlorophenylmethyl sulphone is obtained; (4) 4-chlorophenylmethyl sulphone and cyclohexylamine or benzylamine yield 4-cyclohexylamino- or 4-benzylamino-phenylmethyl sulphone; (5) 4-chlorophenylmethyl sulphone and piperidine yield 4-piperidinophenylmethyl sulphone; (6) 4 : 41-dichlorodiphenyl sulphone and methylamine or dimethylamine yield 4 : 41-di(methylamino)- or 4 : 41-di(dimethylamino)-diphenyl sulphone. Halogenaryl sulphones for use as starting materials are obtainable from halogenaryl sulphochlorides, (a) by reducing these to sulphinic acid salts and treating the latter with alkylating, aralkylating or arylating reagents, or (b) by condensing them with hydrocarbons or their substitution products in the presence of aluminium chloride. Alternatively, aryl sulphochlorides not containing nuclear halogen may be condensed with halogenaryl compounds in the presence of aluminium chloride.