baber/WOPTO huggingface dataset:
Patent GB-1134120-A (GB)
Title: Process for pressure welding using gas heating
Inventor: STRAKOSCH WALTER ANDERS HANS
IPC: B23K5/00
Filed: 1966-07-04
Abstract: 1,134,120. Welding by pressure. VEREINIGTE NE - METALL - HALBZEUGWERKE HETTSTEDT VEB. 4 July, 1966, No. 28048/66. Heading B3R. In welding together solid bars of copper and copper base alloys having a cross-sectional area of at least 1000 mm.<SP>2</SP> the ends of the bars are tapered, the bars are mounted in the clamps of a press, a sleeve is provided around each bar with space between the sleeves and the tapered ends to allow for an upset bulge of metal, the tapered ends are heated by gas burners and the heated tapered ends are pressed together to form a weld and produce an upset bulge. Copper bars 1 of square cross-section have their ends 2 tapered at 60 degrees and are mounted in a press to be brought together with sleeves 3 about their ends spaced to allow the copper ends to be upset to form an upset. The tapered ends of the copper bars are heated by gas burners to approximately melting temperature and are then butted. Undesirable oxide inclusions are forced into the upset, which may be machined off after welding.
Patent GB-533205-A (GB)
Title: Improvements in and relating to the production of heat-insulating materials
IPC: C04B24/08
Filed: 1939-10-18
Abstract: 533,205. Heat - insulating compositions. TURNER & NEWALL. Ltd. Oct. 18, 1939, No. 28153. Convention date, March 25. [Class 22] In forming heat-insulating materials by moulding under pressure moistened magnesia which may contain asbestos, or calcium carbonate, diatomaceous-earth &c. the shrinkage during drying and the density of the product are reduced by the addition of a small proportion of an insoluble soap. The soap may be formed in situ by mixing a soluble soap with the slurry and afterwards adding alum, or aluminium, chromium, iron, calcium, strontium; barium or zinc salts.
Patent GB-770334-A (GB)
Title: Drying-plates for use during earthenware, pottery and similar manufacture
IPC: B65D19/00
Filed: 1954-09-30
Abstract: 770.334. Drying pottery &c. PARISH, R. Aug. 23, 1955 [Sept. 30, 1954], No. 28171/54. Class 34(2) A potter's board or drying plate consists of a rectangular or other shape aluminium alloy platform 1 with chamfered comers and a central orifice 2 and' legs 3. In a modification (Fig. 6) a flanged hole 2 houses a flush-fitting disc or insert 4 provided with orifices 5.
Patent GB-1011441-A (GB)
Title: Electron gun
IPC: H01J29/48
Filed: 1963-07-16
Abstract: 1,011,441. Electron guns. KENTUCKY ELECTRONICS Inc. July 16, 1963 [Aug. 20, 1962], No. 28174/63. Heading H1D. In an electron gun assembly the tubular cathode 40, Fig. 8, in sliding fit engagement at its larger end 82 with a cathode base sleeve 42 which has a portion 92 of reduced diameter where it is fixed to a ceramic ring 44. The arrangement is such that a reduced portion 84 of the cathode is spaced from the sleeve 42 where the sleeve engages the ceramic ring. As shown, the sleeve 42 has a shoulder 90 and an outturned lip 94 engaging opposite sides of a reduced portion 96 of the ceramic ring. The ceramic ring is held in a mounting ring 46. The cathode base sleeve 42 is made of non-electron emissive material or is provided with a non- emissive coating 43 and the ceramic ring is formed with a ridge 98 and a valley 100 to avoid the formation of a leakage path. Holes 95 are provided in the cathode base sleeve for testing the spacing between the cathode 84 and the first grid 52 by the throughput of air during assembly. The grid 52 is corrugated, the corrugations permitting, where the grid engages the support ring 46, the escape of heat. The escape of heat is also facilitated by supporting the flat central portion of the grid by webs from the main body of the electrode. In another embodiment, Fig. 5, the first grid 20 is positioned relative to the cathode by a ceramic spider 80. In all embodiments the gun includes a second grid which may be planar or frusto-conical and complementary to the grid 52 shown in Fig. 8.
Patent GB-601901-A (GB)
Title: Improvements in or relating to the manufacture of ethylcaproic acid, esters thereof and compositions containing said esters
IPC: C08K5/10
Filed: 1945-10-26
Abstract: Alpha-ethyl caproic acid free from colour is obtained by hydrogenating alpha-ethyl-betapropyl acrolein to obtain a mixture of alphaethyl hexaldehyde and the unchanged acrolein, treating said mixture with molecular oxygen, separating by fractional distillation an alphaethyl caproic acid fraction substantially free from alpha-ethyl beta-propyl acrolein and the corresponding acid, but containing traces of heptan-3,4-dione, and removing said diketone. The removal of the ketone may be effected by oxidation, e.g. with oxygen, which may be used with ultra-violet radiation, with hydrogen peroxide, or with a reagent which reacts with the keto group or groups of the diketone, e.g. semicarbozide, phenylhydrazine, or sodium bisulphite.  In an example, alpha-ethyl betapropyl acrolein is hydrogenated with Raney nickel in the liquid phase, the product is fractionally distilled, and an a -ethylhexaldehyde fraction containing 1.7 per cent of the acrolein is oxidized with oxygen without a catalyst; a coloured alpha-ethyl caproic acid fraction obtained therefrom which has been separated from unsaturated compounds, is then treated with hydrogen peroxide.  Specification 601,900 is referred to.
Patent GB-283584-A (GB)
Abstract: 283,584. Daisa, A. Jan. 15, 1927, [Convention date]. Signs; l e t t e r s , numerals, and the like. -A combined sign and shop window illuminator comprises a source of light 4 mounted in front of the window and surrounded by a reflector 1 of cylindrical, parabolic or other suitable section, which prevents the passage of light rays towards the street, with the exception of those entering a transparent sign casing 3 with interchangeable signs projecting towards the street. The part a, b of the source may be silvered to increase the lighting effect in the casing 3, or a small mirror may be fitted in this position. Several lights or. several casings 3 may be fitted to one reflector.
Patent GB-1065352-A (GB)
Title: Improvements in and relating to rotary cutting tools with inserted blades
IPC: B23C5/22
Filed: 1964-03-06
Abstract: 1,065,352. Milling cutters. FUTURMILL Inc. March 6, 1964 [March 6, 1963], No. 28603/66. Divided out of 1,065,351. Heading B3K. A milling cutter comprises blocks 34 of predetermined length for abutting a seat 30 on the cutter body and a straight edge of an insert 44 to set the insert in position. The blocks 34 are secured by differential screws 40. The inserts are clamped by wedges 52 and screws 54. Three different sizes of blocks are available. In a modified cutter, the blades 66, Fig. 5 (not shown), have a positive rake. The blocks can be rotated or reversed if damaged.
Patent GB-771819-A (GB)
Title: Dynamo-electric machine with bare collector leads
IPC: H01R39/34
Filed: 1955-10-07
Abstract: 771,819. Slip-ring connections for dynamoelectric machines. ALLIS-CHALMERS MANUFACTURING CO. Oct. 7, 1955 [Oct. 19, 1954], No. 28677/55. Class 35. The connections between the rotor windings and slip rings on the machine shaft include bare conductors separated by an insulating strip and disposed in ar insulating sleeve located ir an axial bore in the rotor shaft. As shown, the shaft 6 is bored to take the insulating tube 18 and has radial bores accommodating studs screwed at their inner ends into the conductors 15, 16 and connected at their outer ends two to the sliprings and two to the windings, the studs connected to the winding being inside the hydrogen filled casing and the others outside the casing. Sealing and insulating rings surround the studs in the radial bores and the conductors are separated by an insulating strip 19.
Patent GB-1362375-A (GB)
Title: Composite material for the production of air filters
IPC: B01D39/16
Filed: 1971-06-18
Abstract: 1362375 Fibre coated filter paper; air filter I T T INDUSTRIES Inc 18 June 1971 [20 June 1970] 28744/71 Headings BIT and B2E A composite filtering material includes a filter paper and a plurality of fibres attached thereto by adhesive and projecting from a side of the paper. The filtering material may be fabricated by deposition of an adhesive in a predetermined pattern onto a surface of filter paper and bringing fibres into contact with the adhesive such that they project therefrom Reference is made to the deposition of rayon fibres about 1 mm. long and 0.3-0.4 mm. diameter onto sheet filter paper, which may thereafter be cut and pleated to provide air filters suitable for use in I.C. engines. Blowing or electrostatic action may be used to orient the fibres into projecting portions.
Patent GB-655750-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P7/26
Filed: 1948-11-05
Abstract: 655,750. Automatic voltage and speed control systems; converting. GENERAL ELECTRIC CO., Ltd., and DALE, S. H. Nov. 5, 1948, No. 28834. [Classes 38 (ii) and 38 (iv)] [Also in Group XXXVII] The speed and direction of rotation of a D.C. motor supplied by a full-wave connected pair of grid phase-shift controlled gas-filled triodes, are controlled by comparing the output voltage of the triodes with a variable and reversible reference voltage. In reversing, the motor is braked to a stand-still by the triodes acting as an inverter. The voltage applied to the armature of the motor 10 is compared with a portion of a reference voltage (obtained from battery 32) tapped off potentiometer 30. Any error is amplified by a direct coupled valve amplifier 24 and controls a saturable reactor 50 forming part of a phase-shifting network controlling the output of the triodes 12. Motor speed depends upon the setting of potentiometer 30. To reverse the motor, switch 40 is closed so that the anode timing of the triodes is retarded approximately 180 electrical degrees, reversing contactors 21, 22, 33, 34 are changed over to reverse the polarity of the motor supply and of the reference voltage, and switch 40 is reopened. The anode timing advances through a small angle so that whilst the motor acts as a generator, the triodes act as an inverter. The slider of the potentiometer 30 is then moved to the centre tap, when the motor will stop. Further movement accelerates the motor in the reverse direction. The slider is moved with constant velocity to maintain constant armature current. In a modification, the measured voltage is taken from the motor side of contactor 21, 22, the contactor 33, 34, is omitted, and a switch is provided to reverse the polarity of the error signal fed to amplifier 24. In a further modification, Fig. 2 (not shown), a rheostat coupled to the potentiometer 30 reduces the motor field current when the potentiometer reaches the normal limits of travel.
Patent GB-1312806-A (GB)
Title: Developer material
IPC: G03G9/08
Filed: 1970-06-15
Abstract: 1312806 Electrophotography XEROX CORP 15 June 1970 [19 June 1969] 28848/70 Heading G2H A carrier for a dry developer comprises a core material and a resin coating, the core material comprising 95-99 parts of iron, 0À5-2 parts of carbon, 0À5-2 parts of manganese, 0À5-2 parts of silicon, 0À03-0À1 parts of aluminium, 0À1-0À05 parts of phosphorus, and 0À02-0À05 parts of sulphur. The resin may be natural, thermoplastic or thermo-setting. The carrier has a particle size of 50-1, 000 microns and a density of at least 7 gm/cc. 1 part of toner to 10-200 parts of carrier are employed. Toners and coating resins are specified.
Patent GB-694658-A (GB)
Title: Apparatus for raising or lowering heavy loads in mining pits
Inventor: BRAUER SOPHUS
IPC: B66B15/08
Filed: 1950-11-24
Abstract: 694,658. Winding-apparatus. DEMAG AKT.-GES. Nov. 24, 1950. No. 28861/50. Class 78(v). In means for lifting or lowering heavy loads in mining operations, e.g. for replacing the winding-rope 3 of a mine cage, a winch 5 is mounted on a wheeled vehicle 6 which is disposed above a pulley 7 anchored to the ground. The axle 8 of the pulley 7 is mounted detachably in brackets 9 adjacent to which are guides 10. The pulley and axle may be raised through these guides and deposited in the vehicle when the operation is finished. The winch comprises drums 15, 16 driven by a compressed air motor 18 through gears 17. The new rope is wound on storage drums 25 from which it is passed over the sheave 24 to the drums 15, 16 and is wound several times round them before passing to the sheave 7. A brake disc 30 is provided on the first gear of the train 17 and fluid-pressure actuated pawl- and-ratchet gear is provided in connection with each drum 15, 16 to prevent rotation when desired. A braking device also is provided for the drum 25. A drum 19 for an auxiliary cable may be disposed between the drums 15, 16. The controls are arranged so that they can all be operated from a single position.
Patent GB-165006-A (GB)
Title: Improvements in multicylinder fluid pumps
IPC: F04B1/22
Filed: 1920-10-13
Abstract: 165,006. Vernet, P. Oct. 13, 1920. Cam-actuated pumps; assembling parts; buckets; multiple-acting bucket pumps; delivery reservoirs; valves, arrangement of; valves, facilitating removal of.-A pump for liquids and gases comprises a number of cylinders a arranged parallel to the rotary shaft b, which carries a drum b<1> provided with a number of cam-grooves b<2> adapted to engage an equal number of rollers c<1> on the pistons c, so that, as one roller leaves one groove, the next roller enters the next groove. Each cylinder may be single-acting or double-acting. In the double-acting form shown, each cylinder has a delivery valve e at each end, and the piston has two inlet valves d guided in caps d<2> which hold the cup-leathers d<3> in position. The valves e are guided in screw-caps e<2> closing the ends of the cylinders. The liquid enters the cylinders at the centre, and is delivered into chambers f communicating with cylinders g provided with a delivery pipe. The cylinders g contain tubes g<1> provided with screwed nipples g<2> which engage shoulders g<5> on the cylinder g, so that the tubes g<1> serve as tierods for holding the two parts of the pump together. When used for pumping gases, it is preferable to dispense with the valves d and to form - at the base of each cylinder an inlet port controlled by the piston.
Patent GB-248457-A (GB)
Title: Improvements in the manufacture of metallic articles
IPC: B21C29/00
Filed: 1924-12-03
Abstract: 248,457. Western Electric Go., Ltd., (Western Electric Co., Inc.). Dec. 3, 1924. Modifying physical characteristics of metals.- Articles such as cable sheaths are made from an alloy produced in accordance, with Specification 248,458 by placing said alloy in ingot form in an extrusion press, extruding the alloy at a ' temperature not greater than the eutectic fusing temperature and causing the extruded alloy continuously to surround a moving core whilst maintaining the said temperature substantially constant. In an example, a lead-antimony alloy containing 2.5 per cent of antimony and the rest lead is extruded at a temperature of 240‹ C. The sheath may be quenched directly after extrusion, or may be cooled after extrusion and then aged.
Patent GB-691403-A (GB)
Title: Improvements in polysubstituted ureas
IPC: C07C275/30
Filed: 1950-11-28
Abstract: Methylol derivatives of ureas of the formula R-NH-CO-NR1R11 (where R is haloaryl and R1 and R11 are monovalent acyclic or alicyclic hydrocarbon radicals) are modifiers for urea-formaldehyde polymers.ALSO:The invention comprises tri-substituted ureas of the formula R-NH-CO-NR1R11, where R is haloaryl and R1 and R11 are monovalent acyclic or alicyclic hydrocarbon radicals.  These may be made from haloaryl primary amines by treatment with phosgene to give the carbamyl chloride, heating the latter to form the isocyanate and condensing the product with the appropriate secondary amine. Examples show the preparation of the following: 3-(p-chlorophenyl) - 1 : 1 - diethylurea, 3 - (m - fluorophenyl) - 1 : 1 - di - n - butylurea, 3 - (p - chlorophenyl) - 1 : 1 - dicyclohexylurea, 3 - (p-chlorophenyl) - 1 : 1 - di - n - octylurea, 3 - (o - chlorophenyl) - 1 : 1 - diethylurea.  In other products mentioned the haloaryl groups are o-, m- and p-chlorophenyl, p-bromophenyl, p-iodophenyl, m-fluorophenyl, 2 : 4-dichlorophenyl, 2 : 4 : 6 - trichlorophenyl and 4 - chloro-1-naphthyl; R1 and R11 are dimethyl, diethyl, di-isopropyl, di-n-butyl, diallyl, methylethyl and dicyclohexyl.  It is also stated that the aryl group may be tolyl, xylyl, xenyl or methylnaphthyl and R1 and R11 may be oleyl, dodecyl, octadecyl, methyl-cyclohexyl or decahydronaphthyl.  In preferred compounds, R contains 1-3 chlorine atoms and R1 and R11 are alkyl with 1-4 carbon atoms.  The ureas may be nitrated, sulphonated or converted into methylol derivatives.
Patent GB-207806-A (GB)
IPC: H02K11/00
Filed: 1923-11-20
Abstract: 207,806. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Butcher, C. A.). Dec. 2, 1922, [Convention date]. Protective or safety devices, auxiliary; indicators and alarms, applications of; field magnets, dampers on poles of.-A dynamo-electric machine, such as a synchronous converter, having amortisseur windings on the stationary pole members, is provided with a device responsive to the current traversing the amortisseur windings for indicating abnormal operation of the machine. The protective arrangement shown in the Figure comprises a current transformer 7 in circuit with the connecting bars 6 of the damping conductors 5, and the secondary of the transformer is connected to a time-limit relay 8, which may be of the thermal type comprising a bimetallic strip through which is passed the current in the amortisseur windings. If the armature fails to start, or falls out of step by reason of overload, a heavy current circulates in the amortisseur winding, and after a definite time interval, the relay 8 will close the circuit of a trip coil 9 on the circuitbreaker 3.
Patent GB-469750-A (GB)
Title: Reflector apparatus and method of making same
IPC: F21V7/00
Filed: 1935-10-24
Abstract: 469,750. Vehicle &c. lamps. AVERY, J. M. Oct. 24, 1935, No. 29340. Void. Convention date, Oct. 29, 1934. [Classes 75 (iii) and 75 (iv)] A vehicle or like lamp comprises a casing 35, a central parabolic trough-shaped reflector 43, two side reflectors 51 which may form parts of a parabolic trough at right angles to the central reflector, and a square or rectangular front glass or lens 41. It may be fitted with a point or elongated source of light, preferably an electric light bulb 48 with a rectilinear filament 47 disposed along the focal line of the reflector 43, with or without an auxiliary filament above and to one side of the main filament. The parabolic trough forming the side reflectors 51 may have its focal line passing through the image of the filament 47 in the reflector 43. Fig. 7 shows a half trough-shaped reflector 43 having its focal line passing through the centre of curvature of a hemispherical reflector 55, the top being fitted with a wall 62 which may have a reflecting lower surface. Fig. 10 shows the reflector 43 fitted over its upper half with a rearwardly facing reflector 64. The reflecting surface 43 may be stamped from sheet metal, the reflecting surfaces 51 may be stamped or die cast, and all the surfaces may be formed with interengaging lugs and recesses, the joints afterwards being soldered, brazed, or welded. The lamp casing 35 may be formed integrally with or secured to the mudguard 38 or any other part of a vehicle.
Patent GB-409279-A (GB)
Title: New or improved switching or control arrangements for use in connection with toy vehicles, mechanical toys and the like
IPC: A63H17/26
Filed: 1932-10-21
Abstract: 409,279. Mechanical switches without quick action. LINES, W., and LINES BROS,, Ltd., Tri-ang Works, Morden Road, Merton, London. Oct. 21, 1932, No. 29418. [Class 38 (v).] A switch or other mechanism on a clock. work toy motor car or similar clockwork toy is operated by a rod or shank c which is slidably mounted in, and frictionally gripped by a bush or sleeve a of rubber or other distortable material adapted to be forced into an aperture in a dashboard or panel b. In the form shown, the rod c is formed with a looped end c<2> to which one lead d of an electric lighting circuit is connected, the other lead d<1> of the circuit being-connected to a fixed contact f<1>. Alternatively the rod c may be used for operating a lever adapted to apply a brake to the rear wheels of the vehicle, or to stop and start the clockwork motor of the vehicle.
Patent GB-702183-A (GB)
Title: Improvements in or relating to nail and like brushes
IPC: A46B15/00
Filed: 1951-12-17
Abstract: 702,183. Brushes; handles. COSBY, E. L. H. Sept. 23, 1952 [Dec. 17, 1951], No. 29530/51. Classes 19 and 61 A nail or like brush has a back portion made of waterproof material in the shape of a major portion of a sphere, groups of bristle knots being fitted to a chordal face and the back being of hollow construction with a sealed air cavity such that the brush floats in water. The brush shown is made in two parts sealed together, a key and keyway 21 being provided to prevent relative rotation. The back is such that on a horizontal surface it comes to rest with the bristles slanting downwards and flats may be provided around the lower edge of the back to prevent rolling and at such an angle that the bristles are just out of contact with the surface. The lower element of the stock may alternatively be locally thickened or otherwise weighted to make the brush roll to a particular position. Specification 422,700 is referred to.
Patent GB-1465512-A (GB)
Title: 2-2-methyl-1-propen-1-yl-1,3-dioxans useful as perfumes
IPC: C07D319/06
Filed: 1974-07-04
Abstract: 1465512 Propenyl dioxans BASF AG 4 July 1974 [6 July 1973] 29608/74 Heading C2C The invention comprises propenyl dioxans of the general Formula (I) in which each of R<SP>1</SP>-R<SP>6</SP> is hydrogen, methyl or ethyl and the total number of carbon atoms in the substituents R<SP>1</SP>-R<SP>6</SP> does not exceed 4. They may be produced by reacting dimethyl acrolein with a diol of formula in the presence of an acid catalyst, e.g. sulphuric or sulphonic acid. Preferably the water formed in the reaction is continuously removed and this may be achieved by carrying out the reaction in a boiling solvent which permits continuous entrainment of the water. Suitable solvents are, for example, hydrocarbons and chlorinated hydrocarbons. For purposes of comparison 2- [1<SP>1</SP> - propen - 1<SP>1</SP>- yl] - 4 - methyl - 1,3 - dioxan is prepared by an analogous method.
Patent GB-432542-A (GB)
Title: Improvements in or relating to the manufacture of aromatic amines
Filed: 1933-10-26
Abstract: The Specification relates to the manufacture of diarylamines by heating primary aromatic amines with a suitable catalyst in a closed apparatus at substantially constant super-atmospheric pressure, while the charge is kept boiling.  The process is described with reference to aniline, using hydrochloric acid or ammonium chloride as catalyst, but is stated to be applicable also to the production of phenyl-a -naphthylamine and p-ethoxyphenyl-a -naphthylamine from a -naphthylamine with aniline or p-phenetidine respectively, and to the production of toluidines, xylidines, naphthylamines and phenetidine.
Patent GB-335743-A (GB)
Title: Improvements in the ventilation of closed motor car and motor coach bodies and the like
IPC: F24F13/08
Filed: 1929-10-02
Abstract: 335,743. Suddards, T. D. Oct. 2, 1929. Addition to 320,529. Ventilating closed vehicles.- In a ventilator for closed motor cars and the like comprising a louvre D adapted to be secured in the aperture usually occupied by the rear window, and an associated deflector plate B within the vehicle, there is provided a hinged flap C for controlling the opening at the upper end of the deflector plate. The flap C is preferably mounted to move stiffly, or may be provided with locking means. The louvre, flaps may be movable and connected for simultaneous operation as by a member F and may be operatively connected with the flap C for adjustment from, within the vehicle by cables or the like. In a further modification the flap C is pivoted about its longitudinal axis.