baber/WOPTO huggingface dataset:
Patent GB-1470937-A (GB)
Title: Electrical machine stator windings
IPC: H02K3/28
Filed: 1975-04-17
Abstract: 1470937 Winding layouts in dynamo-electric machines G M KHUTORETSKY A I VORONTSOV L A DROZDOVA and B S YANIK 17 April 1975 15794/75 Heading H2A A dynamo-electric machine, e.g. a turbogenerator, has a six-phase stator winding formed of two three-phase windings electrically shifted relative to each other, the like phases of the two windings being wound in opposite directions so that one three-phase winding is wound clockwise, while the other is wound anti-clockwise. This winding layout is said to reduce the possibility of corona discharge. In the stator winding disclosed, the two three-phase windings are phase displaced by 30 degrees and their leadouts are brought out at different ends of the stator.
Patent GB-293448-A (GB)
Title: Improvements in or relating to rubber tyres
IPC: B60C7/18
Filed: 1928-05-30
Abstract: 293,448. Long, J. F. July 7, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Metallic s pring bodies and cores.- A rubber tyre 10 is formed with a series of radial apertures 12 within each of which is fitted a compression spring 15 of rustless steel bearing on the rim 11 and against a plate 14 embedded in the tyre.. The cavities are reinforced bv tubular liners 13, and the rim is formed with apertures 16 for the escape of dust and moisture.
Patent GB-395854-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/46
Filed: 1932-06-06
Abstract: 395,854. Dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Soc. GÚnÚrale de Constructions Electriques et MÚcaniques Alsthom ; 146, Avenue des Champs Elysees, Paris.) June 6, 1932, No. 15990. Convention date, June 5, 1931. [Class 35.] Exciting ; polepieces and yokes. - In a machine with multiple exciting windings, such as a generator with independently excited, shunt and anticompound series windings for welding, projections are provided on the yoke or polepieces or both forming a magnetic shunt by which flux can be passed outside some of the windings on the occurrence of a sudden change in the external circuit. The Figure shows such an arrangement in a bipolar machine, projections 8 on the poles 3 co-operating with projections 9 on the yoke to pass flux clear of the independently excited and shunt windings 5, 6 on the occurrence of a sudden change in the current in the anticompound series winding 7.
Patent GB-1024188-A (GB)
Title: Brush
IPC: A46B1/00
Filed: 1964-04-17
Abstract: 1,024,188. Brushes. C. GROTH. April 17, 1964 [April 18, 1963], No. 16025/64. Heading A4K. A brush comprises a body 1 with a rim 3 and a rib 7 between which the ends of a foam overlay 12 are clamped. The body 1 is injection moulded integrally with the bristle material 2 from polyethylene. The rib 7 may either be detachable or moulded integrally with the body 1, and extra supporting ribs 16 may be provided, Fig. 5, (not shown).
Patent GB-117374-A (GB)
Title: Improvements in Caps for Rock Drills and similar Fluid Pressure Operated Tools.
Inventor: BARSTOW FRED AVELING
IPC: E21B17/04
Filed: 1917-11-05
Abstract: 117,374. Barstow, F. A., and Mairet, F. F. Nov. 5, 1917 Loose tools and bits, retaining.-A cap a for rock drills or like tools has a front opening comprising a central circular portion a' larger than the shank b<1> of the drill b, but smaller than the collar b<2> thereof, and two or more sidewardly arranged pockets a<2> whereby the cap may be passed over a drill having a cutting edge b<3>, and, if so provided, spiral blades b<4> of greater width than the collar b<2>. For drills having cutting edges wider than the nose of the machine, wings a<3>, Fig. 8, may be provided on the cap a to accommodate the pockets a<2>. In a modification, the cap is made open-ended and pegs project inwards to a point corresponding with the circumference of the opening a<1>. The cap may be attached to the machine by bayonet joints c, d and locked by a spring e, Fig. 1, or by a screw joint, locked by a plunger f, Fig. 6, pressed by a spring f<1> and prevented by a shoulder f<2> from falling through the cap when the latter is removed from the machine.
Patent GB-1138199-A (GB)
Title: Carrying case for a portable typewriter
IPC: B41J29/13
Filed: 1966-04-13
Abstract: 1,138,199. Copy-holders. ANTARES S.p.A. 13 April, 1966 [14 April, 1965], No. 16106/66. Heading B6W. [Also in Division A4] In a carrying case for a portable typewriter, walls 7, 8, 9, 11 are integral with a base 3, to which the typewriter is secured, a rigid handle 21 is secured to the wall 7, and an outer case cover 4 and an inner typewriter cover 18 are detachably secured to the unit formed by the walls and base. A drawer 24 slidably received between the base 3 and a bottom plate of the typewriter is held closed by yieldable projections on the front of the cover 4 and a spring-urged plate 26, pivoted within the drawer, presses on sheets of paper stored in the drawer. The drawer may be removed and the plate 26 located vertically for use as a copy holder.
Patent GB-574926-A (GB)
Title: Improvements in electric conductors
IPC: H01B5/04
Filed: 1944-08-24
Abstract: 574,926. Electric cables. BOLTON & SONS, Ltd., T., ALKINS, W. E., and SLATER, W. F. Aug. 24, 1944, No. 16112. [Class 36] In an electric cable, the core 1, Fig. 1, is interlocked at spaced points with a helically wound sheath 6. The core may be made of the same material as the outer sheath, or of some material of high tensile strength, e.g., steel, while the sheath may be made of copper, aluminium or an alloy of high electrical conductivity. The spaced points are formed by pips 4, 5 on the edge or side of the core, and in a modification the core is U-shaped with the pips pressed out of the bend of the U ; or again, the U-shaped core may hold a flat strip on which the pips may be formed. A further modification provides for depressions in the core and interlocking projections on the sheath. Fig. 4 shows two sheaths wound helically, and preferably in opposite senses, the projections 9 engaging one or both sheaths 11, 12. In the former case, the sheaths are interlocked by pips and depressions 13, 14.
Patent GB-102937-A (GB)
Title: Mechanical Retarding Device applicable to Electric Supply Meters.
IPC: G01R11/60
Filed: 1916-11-10
Abstract: 102,937. British Westinghouse Electric & Manufacturing Co., (Assignees of Muratori, A.). Dec. 18, 1915, [Convention date]. Permanently-applied; energy-absorbing elements, -A mechanical retarding-device is applied to ordinary electric supply meters in order to register only the excess above a definite load. A weight P is adjustable along one arm of a cranked lever pivoted at 0, and connected by a thread E to a loose pulley c on the meter spindle. A pin p on the pulley is engaged, driven for a half-revolution, and released in turn, by pins b<1>, b<2> on a ring pivoted at right-angles to the pins b<1>, b<2> on a collar D<2> fixed to the spindle, and oscillated by a fixed cam-surface l<1>. A spring m bears against the pulley c.
Patent GB-918929-A (GB)
Title: Improvements in or relating to process for the manufacture of therapeutic useful preparations of iron
IPC: C08B31/00
Filed: 1960-05-06
Abstract: A therapeutically useful ferric hydroxide-partially depolymerized dextrin complex is obtained by mixing an aqueous solution of a water soluble dextrin fraction having an average intrinsic viscosity at 25 DEG C. of from 0,025 to 0,075 with an aqueous solution containing ferrous or ferric ions or a suspension of ferrous or ferric hydroxide and an excess of alkali, heating the reaction mixture to form the ferrous or ferric complex and in the former case oxidizing to give the ferric complex.  The initial dextrin is preferably obtained by roasting starch in the presence of an acid.  In a typical example (No. 2) dextrin is heated in water at 75 DEG C. and firstly ferric hydroxide solution and then caustic soda solution added slowly. After cooling the pH is adjusted to 6,2 and ethyl alcohol added and the solution rendered isotonic by the addition of sodium chloride and then filled into ampoules.  Phenol may be added as a preservative. Specification 748,024 is referred to.ALSO:A therapeutically useful ferric-hydroxide-partially depolymerized dextrin complex is obtained by mixing an aqueous solution of a water soluble dextrin fraction having an average intrinsic viscosity at 25 DEG  C. of from 0.025 to 0.075 with an aqueous solution containing ferrous or ferric ions or a suspension of ferrous or ferric hydroxide and an excess of alkali, heating the reaction mixture to form the ferrous or ferric complex and in the former case oxidizing to give the ferric complex.  The complex may be prepared from dextrin obtained by roasting starch with acid as described in Group IV (a).  It may be rendered isotonic with sodium chloride and filled into ampoules with 0.5% of phenol as a preservative.  Specification 748,024 is referred to.
Patent GB-256196-A (GB)
Title: Improvements in bombs for throwing by hand or firing from bomb throwers
IPC: F42C15/30
Filed: 1926-06-28
Abstract: 256,196. Pantoflicek, B. July 30, 1925, [Convention date]. Projectile fuzes. - A time fuze 1 is ignited by a cap 10 struck by the pin 9 of a spring striker 8, when this is released by the dislodgment of a weight 2 by centrifugal force if the bomb is thrown by hand, or by the pressure of the propellent gases admitted behind the weight through holes 5 if the bomb is discharged from a bomb-thrower. The projectile is spaced away from the wall of the gun barrel by lugs 4 to permit the passage of the propellent gases around the projectile to the holes 5. The weight 2 normally confines balls 6 which hold the spring striker cocked. During transport, the weight is locked by a safety pin 14, and after the removal of this, the weight is kept in place by the balls 6, which lie in front of a shoulder 16 on the weight.
Patent GB-124154-A (GB)
Title: Improved Drawing Table.
IPC: A47B27/18
Filed: 1918-10-10
Abstract: 124,154. Naamlooze Vennootschap W. J. Ahrend & Zoon's Industrieen Handelsvereeniging. July 25, 1918, [Convention date]. Addition to 114,119. Drawing-desks.-Relates to the spring-friction device of the pivoted telescopic members for adjusting the drawing table or desk described in the parent Specification. The table top is carried by parallelogram links provided with a counterweight and connected to the rod 4 which is frictionally held in adjusted position in the tubular part 6 of the telescopic devices by a spring 9 situated between a friction shoe 10 and a serew-cap 8 adjustable on a sleeve 7. A clamping-screw 12 is provided to hold the parts more rigidly in adjusted position, when desired.
Patent GB-204663-A (GB)
Title: An improved crystal receiver set for wireless signalling
IPC: H04B1/08
Filed: 1923-06-26
Abstract: 204,663. Dean, L. L. R. June 26, 1923. Receiving sets, construction of.-A complete receiving set is contained in the casing of a telephone receiver. As shown, the crystal 6 co-operates with an adjustable point 7, but a two-crystal detector may be used or the crystal may be movable eccentrically with respect to a fixed point. A variable condenser 10 and inductance 8 are arranged as shown. The adjusting handles pass through insulating bushes. A second telephone may be provided and may contain a condenser. The condenser or inductance may be fixed and a variometer may be provided. Specification 208,414 is referred to.
Patent GB-499196-A (GB)
Title: Improvements in the treatment of textile materials, foils and the like derived from cellulose
IPC: D06M15/423
Filed: 1937-06-15
Abstract: The resilience, and particularly the resistance to creasing, of materials comprising filaments, fibres, foils and the like having a basis of a cellulose organic ester or ether is increased by impregnating the materials with formaldehyde and urea or a urea-like substance, drying the materials at a temperature not substantially above 50 DEG  C., and heating the impregnated materials, the whole process being effected without the addition at any stage of a condensing agent.  Examples of urea-like substances are thiourea, guanidine, biuret, dicyandiamide, and alkyl or aralkyl substituted ureas such as monomethyl-, monoethyl-, methyl-ethyl-, phenyl-ethyl-, phenyl-methyl-, and benzyl-urea.  Cellulose esters and ethers mentioned are cellulose acetate, whether acetone-soluble, partially saponified, or of high acetyl content, nitro-cellulose acetate, cellulose propionate, cellulose butyrate, methyl, ethyl, propyl and benzyl cellulose, ethyl cellulose acetate and oxyethyl cellulose acetate.  A lower aliphatic alcohol, ketone, or ester, for example, methyl or ethyl alcohol, acetone, methyl ethyl ketone, or ethyl acetate, may be present as a swelling agent in the impregnating bath. Softening agents such as glycerol may also be present in the impregnating bath.  Effects obtained by mechanical distortion of the materials, for example, by embossing, beetling, or imparting crimp or curl, are rendered more permanent by the process of the invention. The resistance of materials to the action of water and aqueous liquids is increased and their dye affinities may also be modified, enabling them, for example, to be dyed with acid dyes and rendering them resistant to basic dyes.  According to the Provisional Specification, the resiliency of materials comprising filaments, fibres, ribbons, foils and the like having a basis of cellulose acetate or other water-resistant inelastic filament-forming base is increased by impregnating them with urea or a urea-like substance and an aldehyde such as formaldehyde, acetaldehyde, benzaldehyde, acrolein or furfurol, under conditions which do not favour condensation before or during impregnation, and subsequently effecting condensation in the materials in the course of a heating step, preferably after drying the materials at a low temperature.  It is not essential for the bath to be exactly neutral during impregnation and it may be of pH value between 4 and 9.  Moreover, acid or alkaline condensing agents may be introduced by any suitable means.  Specification 485,199 is referred to.
Patent GB-755051-A (GB)
Title: Improvements in or relating to electric motor control apparatus suitable for calculating systems
Inventor: CUTLER ALBERT ERNEST
IPC: G05D3/14
Filed: 1954-06-04
Abstract: 755,051. Electric analogue calculating systems. COMMUNICATIONS PATENTS, Ltd. June 4, 1954, No. 16597/54. Class 37. [Also in Group XXXVII] An A.C. control signal is applied through a resistor 13 to a summing amplifier 4 the output of which energizes a winding 5 of a two-phase motor 6 having another winding 7 connected to a source of constant amplitude and quadrature phase. The motor operates an indicator 8 through gear-box 9, and drives a two-phase generator 10 having a winding 11 connected to a source of constant amplitude, and a winding 12 in which is induced a voltage proportional to the speed of the motor. This winding provides a feed-back voltage which is added to the control signal applied to the amplifier through resistor 13. By a suitable choice of the resistor 3, the value of the positive feed-back signal may be made such that, over a limited range, the motor speed is proportional to the time integral of the control voltage and the displacement of the indicator 8 is proportional to the second time integral of the voltage. Furthermore, the arrangement is such that, for a given value of the control voltage, the torque of the motor is substantially independent of its speed. The system may be used for computing the pitch, roll, and heading angles of an aircraft.
Patent GB-1387910-A (GB)
Title: Method of preparing an iron oxide pigment base
IPC: C09C1/24
Filed: 1972-04-11
Abstract: 1387910 Iron oxide pigments SOC DES MINES ET FONDERIES DE ZINC DE LA VIEILLE MONTAGNE SA 11 April 1972 [3 May 1971] 16678/72 Heading C1A An iron oxide pigment base is prepared from a sulphate solution derived by leaching zinc residues and containing ferrous and zinc sulphates, by heating the solution to about 90‹ C., adding a zinc oxide containing material to raise the pH to above 2, blowing in air to precipitate the hydrolysable impurities and some iron, separating the mother liquor, maintaining it at about 90‹ C. and adding sufficient zinc oxide containing material to obtain a pH between 1À7 and 2À5, blowing in dispersed air to precipitate iron in the form of goethite and treating this precipitate with a basic medium, e.g. aqueous sodium bicarbonate, to remove sulphate ions. The goethite precipitate may be washed at 90‹ C. with aqueous alkali and then washed with water and either dried at not more than 150‹ C. to obtain a yellow pigment or calcined for at least 4 hours at 700-750‹ C. to obtain a red pigment; alternatively, the precipitate may be reduced by hydrogen under pressure in 5N sodium hydroxide for 4 hours at 175-250‹ C., washed in water and dried at not more than 150‹ C. to obtain a black pigment.
Patent GB-116031-A (GB)
Title: Improvements in and relating to Oil and like Transport Tanks.
IPC: B61D5/00
Filed: 1917-11-15
Abstract: 116,031. Harding & Son, E., Harding, E., and Harding, E. Nov. 15, 1917. Tanks.-Transport tanks for oil &c. are provided with dished ends b and partitions e<1>, e<2>, the ends being secured by hoops c which are shaped to form grooves for the reception of lifting-straps d, and the tank body being slightly thickened at its ends. Each compartment is provided with a drawing-off pipe and cock, and with a cover f having a vent f<1>, and the side tank-supporting bars i<1> are provided with wooden bars j.
Patent GB-916441-A (GB)
Title: Door assemblies
IPC: E06B3/01
Filed: 1961-05-09
Abstract: 916,441. Door - operating appliances. RICHARDS - WILCOX CANADIAN CO. Ltd. May 9, 1961 [May 14, 1960], No. 16831/61. Class 65 (1). A door assembly for closing an opening having a portion of a greater height than the remainder of the opening in the wall of a building such as an aircraft hangar comprises an upper door sub-assembly for closing the upper part of the portion and a lower door separate from the upper door for closing the remainder of the opening and the lower part of the portion, a counterweight being associated with the upper door sub-assembly to urge the latter towards its open position and means being provided responsive to movement of the lower door to permit the counterweight to open the upper door sub-assembly as the lower door is opened and to close the upper door subassembly against the action of the counterweight as the lower door is closed. In a first embodiment (Figs. 1 and 4), the upper door sub-assembly comprises a pair of similar hollow doors 33, 34 slidable horizontally on a track 14 and each provided with a counterweight 40 suspended therein on a cable 45 which is anchored at 46 to the door structure and after passing around a pulley 42 attached to the counterweight and a pulley 43 attached to the door is anchored at its other end to the building. The lower door comprises six leaves 17-22, three of which open to each side, the inner doors 19, 20 being notched at 49 to engage horns 50 on the respective upper doors 34, 33 so that as the lower door leaves close the upper doors are pushed closed against the action of-their counterweights. Each horn has a projecting pin 57 which enters a slot 56 in the respective notch so that wind loads exerted on the upper doors are transferred to the lower door leaves. In a second embodiment (Fig. 7) a single vertically-slidable upper door 61 is suspended by a cable 88 which is anchored at both ends to the door and passes over pulleys 85, 87 on the cross beam 63 and a pulley 80<SP>1</SP> carried by the counterweight 81. A second cable 77 anchored to the counterweight passes over pulleys 84, 78 and is secured to a trolley 73 movable along a channel 71 which also guides a lower door leaf 66. The trolley has a depending lug 75 engaged by an abutment 76 on the door leaf, so that as the lower door closes the counterweight is raised and the upper door closes under its own weight.
Patent GB-561750-A (GB)
Title: Improvements in the manufacture of precipitated silica
IPC: C01B33/193
Filed: 1942-11-27
Abstract: 561,750. Non-gelatinous silica. COLE, Ltd., E. K., and EVANS, J. N. I. Nov. 27, 1942, No. 16833. [Class 1 (ii)] Silica in non-gelatinous form composed substantially of easily dispersed particles having a diameter of less than 5 microns and suitable for use in the manufacture of luminescent silicates for electric discharge lamps is precipitated from sodium or potassium silicate solutions having a ratio of Na2O (or K2O) to SiO2 greater than 1 mol. of Na2O (or K2O) to 2 mols of SiO2 in presence of a buffer salt, the concentrations of Na2O (or K2O) silica and buffer salt, and the temperature being regulated accordingly. The precipitation may be caused by the addition of a strong acid, or a, mixture of strong and weak acids, or a strong acid and a salt of a weak base, or by a weak acid where the buffer salt is a salt of a weak acid, or by a salt of a weak base where the buffer salt is a salt of a weak base, or, in particular where the buffer salt is ammonium chloride or ammonium nitrate, by the addition of hydrochloric acid or nitric acid, the silicate solution being sodium silicate.
Patent GB-235026-A (GB)
Title: Improvements in and relating to regulating devices
IPC: G05D13/00
Filed: 1924-07-14
Abstract: 235,026. British Arca Regulators, Ltd. (Aktiebolaget Arca Regulatorer). July 14, 1924. Addition to 116,074. Thickness of paper, regulating. -In a modification of the apparatus described in the parent Specification for automatically adjusting a regulating device controlling a fiuid or electric current the speed of machinery &c., the servomotor operating the device has two liquid conduits provided with discharge nozzles each having before it a cap movable by that which is to be regulated to vary the liquid-pressure in the conduits which are arranged so that the liquids in them act on the servomotor in opposite directions to neutralize the effect of fluctuations of pressure in the liquid-supply to the servomotor. The float of a steam-trap, Fig. 3, is connected to a lever 38 carrying caps 39 in front of which are nozzles 37 of two conduits 36 communicating with opposite sides of a diaphragm 33 connected . to a discharge valve 30. Liquid is supplied to the nozzles from the trap chamber by a branch pipe 34 having throttling devices 35. In other applications, a piston takes the place of the diaphragm 33 and the lever 116, Fig. 7. carrying the nozzle caps is controlled by a spring 117 and a bellows 118 connected, for example, to a steam pipe in order to regulate a steam reducing valve. In the servomotor shown in Fig. 7, the regulating device is connected by a wheel 107, chains 108, piston rods 106 to a servomotor comprising cylinders 105 supplied with liquid by branch pipes 102 controlled by valves 103 secured to a diaphragm 111 in a chamber 110 through which liquid passes by way of passages 109 in the valve stems to the nozzles 114. Liquid is discharged from the cylinders through pipes 120.