baber/WOPTO huggingface dataset:
Patent GB-2462948-A (GB)
Title: Measuring phase angle of a rotor in an electric motor
Inventor: BURKE RICHARD
IPC: H02P6/18
Filed: 2009-10-15
Abstract: A control system for an electric motor includes a first control device 64 arranged to control current in a first coil set 60 and a second control device 64 arranged to control current in a second coil set 60. A controller is arranged to instruct the first control device to control current in the first coil set to generate a torque on the rotor to allow rotation of the rotor. A measurement is then made of a characteristic associated with the second coil set resulting from the rotation of the rotor from the torque generated by the first coil set while substantially no current is flowing in the coils of the second coil set. The characteristic may be the back-emf, and may be used to determine the phase angle of the rotor, and the motor may be a hub motor for use in the wheel of a vehicle. The electric motor may also be an electric generator.
Patent GB-218749-A (GB)
Title: Improvements in liquid controllers for two and three phase slip-ring motors
IPC: G05B11/01
Filed: 1923-04-12
Abstract: 218,749. West & Co., Ltd., A., and West, A. April 12, 1923. Controllers, liquid.-In a liquid resistance controller of the type in which the electrodes are caused to move in a horizontal or nearly horizontal path, an inner casing 13, 14 surrounds the stationary electrodes 4 in order to induce a regular circulation of electrolyte in the tank, which is cooled by water pipes 8. In the construction shown, the movable electrodes 1 are mounted on a sliding carrier 2. The controller is intended for use with three-phase slip-ring motors.
Patent GB-347443-A (GB)
Title: Improvements in golf clubs
IPC: A63B53/02
Filed: 1930-04-01
Abstract: 347,443. Golf clubs. HORSBURGH, T., 76, Baronscourt Terrace, Edinburgh. April 1, 1930, Nos. 10259 and 15998. [Class 132 (ii).] In a metal shafted golf club wherein the club head E is attached to the shaft A by means of a solid metal end-piece B, one end of which is inserted in the shaft and the other end externally screwed to engage an internal thread in the unsplit socket D of the club head, the end-piece B is secured within the shaft by welding, brazing or soldering. In the case of an "iron" club, the internal thread is cut in the metal of the socket, but in the case of a " wooden " club an internallythreaded metal sleeve F is recessed into the head. The outer surface of the sleeve may be threaded in the opposite sense to the end-piece B or may be provided with a feather. The upper end of the socket may be protected by a metal ferrule G.
Patent GB-375890-A (GB)
Title: An improved apparatus for treating wood with fluids for preserving and other purposes
IPC: B27K3/06
Filed: 1931-04-07
Abstract: 375,890. Drying wood. POUND, F., 3, Brancaster Road, Newbury Park, Essex. April 7, 1931, No. 10280. [Class 34 (ii).] Apparatus for drying wood with hot air, of the type in which the fluid is forced into one end of the log while suction is simultaneously exerted on the other end, comprises two annular supports arranged at each end of the log connected by a number of adjustable tierods. A log 10 is mounted in a fluidtight manner by annular washers 17, 18, between flanged tubular members 13, 14 connected by adjustable tie-rods 19. The tubular members 13, 14 are joined to chambers 11, 12, connected respectively by pipes 20, 23 to a force pump and a vacuum pump. The chambers 11, 12, which may be mounted on movable carriages 26, are also provided with a valve-controlled air outlet pipe 21 and a drain pipe 25. The assembly may be mounted in an outer chamber 27 provided with a detachable cover-plate 28 and supplied by a pipe 29 with a fluid such as air or water under pressure in order to prevent extrusion of the impregnating fluid through cracks in the log. The apparatus may be modified so that a number of logs may be simultaneously treated.
Patent GB-291927-A (GB)
Title: Improvements in or relating to electric arc lamps for therapeutic and other purposes
IPC: A61N5/06
Filed: 1927-04-14
Abstract: 291,927. Baron, C. E., and Myers, R. P. April 14, 1927. Arc lamps.-In an arc lamp, particularly for sun-ray treatment, and of the type wherein the electrodes are operated by the movement of a metal tube 7 under the action of a heating coil 10 surrounding the tube, the tube is directly connected to one end of a pivoted lever t, the other end of which carries rods x to which are attached the clutches y operating the upper electrodes k. The lamp comprises two arcs connected in series with one another and the heating coil. A base-plate a carries on columns b a top plate c fitted with the lamp terminals d, e. The lower tungsten electrodes h, i are mounted in holders g secured to the base-plate by rods f. The upper carbon electrodes are carried by holders l, m sliding in tubular guides n, o and pass through lower supporting guides q, r. The lower end of the brass tube 7 abuts a screw 9 fitted to a base 5 rigidly secured to the base a by rods 4, and the upper end is rigidly secured to a member 6 secured to the forked end of the lever t. The lever t is pivoted in a bracket z mounted on the plate c and passes through a guide 11 fitted with an adjustable stop 12. A device which stops the lamp after a predetermined consumption of the electrodes and conseqnently a predetermined time comprises a stop 18 mounted on the guide n and operated through bevel gearing 15, 16 and a screwed spindle 17 by a shaft 14 fitted with a dial.
Patent GB-107830-A (GB)
Title: A New or Improved Valve for Water Taps, Air or Steam Cocks and the like.
Inventor: FORRISTER EDWIN MARTIN
IPC: F16K1/36
Filed: 1916-07-24
Abstract: 107,830. Forrister, E. M. July 24, 1916. Closure members. - Relates to lift valve members of the type comprising an inverted metal cup and a flexible washer forming together a chamber into which fluid has access to force the flexible washer against the valve seating during the normal closing operation. The washer c, Figs. 2 and 12, is formed with an upstanding flange c<3> and with a central hole c<1> to receive the securing stud or pin d; an interposed collar or washer e is notched to provide a passage into the chamber. The inside of the cup b may be grooved to make a better watertight joint between the cup and the washer. The securing stud d may be detachable, as shown in Fig. 2, or integral with a loose nut m, as shown in Fig. 12.
Patent GB-1510271-A (GB)
Title: Method of assembly of nonmagnetic current-conducting components
IPC: B23P19/00
Filed: 1976-03-16
Abstract: 1510271 Dynamoelectric machines INST FIZIKI AKAD NAUK LATVIISKOI SSR and SPETSIALNOE KONSTRUKTORSKOE BJURO MAGNITNOI GIDRODINAMIKI INST FIZIKI AKAD NAUK LATVIIKOI SSR 16 March 1976 10538/76 Heading H2A [Also in Division B3] Non-magnetic conductive components, e.g. rings 1, 2, 3, may be assembled in a desired arrangement by placing the components in a primary alternating magnetic field B so that areas embraced by the contours of currents i 1 , i 2 , i 3  induced in the components lie in planes perpendicular to the magnetic field B, and when viewed along the axis of the field at least partially overlap in each adjacent pair of components; the induced currents i 1 , i 2 , i 3  excite a secondary magnetic field pattern b 1 , b 2 , b 3 , and the components move relative to one another under the effect of electrodynamic forces produced by the interaction of the primary and secondary magnetic fields.
Patent GB-345115-A (GB)
Title: Improvements in composite metallic gland packings
IPC: F16J15/26
Filed: 1930-04-03
Abstract: 345,115. Stuffing-boxes. TUCK & CO., Ltd. and WEIR, J. S. C., 61, St. Mary Axe, London. April 3, 1930, No. 10572. [Class 122 (v).] A packing element for stuffing-boxes comprises a pair of antifriction metal rings a with their inclined faced d disposed parallel and connected by layers b of fabric &c. The surfaces d may be serrated to increase adhesion between the rings a and fabric b.
Patent GB-1470571-A (GB)
Title: Dispensing instrument and method
IPC: A61M31/00
Filed: 1974-03-08
Abstract: 1470571 Catheters; syringes POPULATION RESEARCH INC 8 March 1974 [9 March 1973 31 Jan 1974] 10593/74 Heading A5R A uterine catheter tube 441 has an expandable member 443 at or near the dental end, the expandable member being made of soft, relaxed, flexible, elastic material having a low modulus of elasticity e.g. rubber, and being of sufficient size relative to the dimensions of the catheter tube to expand longitudinally of the catheter tube at least as far as one end thereof, whereby the expandable member can be expanded to substantially fill the uterine cavity and conform to the shape thereof. The instrument comprises a tube 441 insertable into the uterus and through which a balloon 443 on the innermost end may be inflated via apertures 448 from a container 459 by actuating a piston 463. One or more tubes 453 extend through the tube 441 to an outlet passage 452 in a head 417 at the innermost end of the tube 441 and convey medicaments from one or more containers 474 to the outlet passage 452 on operating a piston or pistons 477. The pistons 463, 477 controlling the inflation of the balloon and the dispensing of the medicaments are operated under the control of a single actuator 468 or a pistol grip trigger (320) Figure 27 (not shown) so that the balloon is first partially inflated, the medicament is then dispensed and, finally, the balloon is inflated sufficiently to fill the uterus and thus drive the medicament into the Fallopian tubes. The actuator 468 is initially connected to the plungers 486, 514 of the pistons 463, 477, respectively, by links 501, 518. On first projecting the actuator 468 the plungers 486, 514 are moved to displace the piston 463 and partially inflate the balloon and to project the medicament container 479 so that its forward end is pierced by a needle 472 which communicates with the dispensing tube 471. On continued movement of the actuator, the link 501 is moved away from the actuator but the plunger 514 continues to be displaced to cause discharge of medicament via the tube 471. The link 518 is then. disconnected from the actuator and the first link 501 reconnected so that projection of the plunger 486 recommences and inflation of the balloon is completed. The inflation fluid may be atmospheric air which enters the container 459 through a hole 466. Two medicament containers may be discharged simultaneously using a bifurcated plunger (514A) Figure 37 (not shown). The head (651) may include a chamber in which the contents of the two containers are mixed before discharge. The medicament and inflation fluid containers (44, 51, 53) Figure 1 (not shown) may be separate and independently operable, each container, Figures 4 to 19, (not shown) comprising a sealed cylinder or collapsible container from which the contents are ejected by a manually operable piston which also causes a needle to pierce a wall of the container. The containers may be contained in the same or separate housings. The balloon may be fully expanded to fill the uterus before the fluid is dispensed into the uterus.
Patent GB-691494-A (GB)
Title: Improvements relating to well drilling tools
IPC: E21B31/107
Filed: 1951-05-07
Abstract: 691,494. Jars. STOW, G. R. S. July 11, 1951 [May 7, 1951], No. 10679/51. Class 85 A cable drill-tool comprises a drill stem 10 on which is threaded and welded a hollow cylindrical extension 13, the bore of which is greater in diameter at the lower part 16 than at the upper part 17, and a cylindrical jar and rope socket member 20 having lower and upper parts 21, 22 making sliding fits within the lower and upper parts 16, 17 respectively of the extension 13 from which it projects at all times so that the shoulders 18 and 23 on the extension 13 and member 20 engage when the latter is in the upperm'ost position. The projecting upper end of the member 20 is hollowed cut to form a socket to receive a mandrel 28 that is passed through a slot 29 and attached to a rope 27 passed into said socket through a bore 24. Hard steel inserts 32, 35 may be secured on the shoulders 18, 23, whilst drainage holes 26, 31 are formed in the walls of the rope socket and extension. Bayonet lugs 19 are provided at the upper end of the extension 13, and grooves 30 on the upper end of the member 20 to enable the tool to be recovered in the event of the rope breaking.
Patent GB-975355-A (GB)
Title: Production of neutral terephthalic acid esters
Inventor: SCHENK WALTER
IPC: C07C69/82
Filed: 1963-03-19
Abstract: Neutral esters of terephthalic acid are produced by a process in which a neutral salt of terephthalic acid is converted in aqueous solution into an acid salt and the said salt is reacted with an alkanol, an alkanediol or a 1, 2-epoxide to yield a neutral terephthalic ester and a neutral terephthalate, which may be re-used in the process. The starting material is preferably an alkali or alkaline-earth terephthalate, e.g. disodium or dipotassium terephthalate or calcium terephthalate, but other terephthalates may also be used, e.g. cadmium terephthalate or diammonium terephthalate. The conversion of the initial neutral salt into an acid salt may be effected by treating the neutral salt with an acid of higher acidity than terephthalic acid or with the corresponding anhydride. Specified reagents for this purpose are hydrochloric, sulphuric and phosphoric acids, carbonic acid or carbon dioxide, formic, acetic, benzoic and p-toluenesulphonic acids, phthalic acid or its anhydride, acetic anhydride and succinic anhydride.  Specified esterifying agents with which the acid terephthalate may be reacted are methanol, ethanol, propanol, butanol, ethylene glycol, 1,3-propylene glycol, 1,4-butylene glycol, 1,6-hexanediol, ethylene oxide and propylene oxide. The esterification may be effected in the presence of a catalyst, e.g. zinc borate, silica gel, aluminium oxide or a cobalt sinter catalyst. In Example 1, an aqueous solution of dipotassium terephthalate is treated with phthalic anhydride to yield a precipitate of potassium hydrogen terephthalate, which is filtered off and then heated to 320 DEG C. with methanol to yield a precipitate of dimethyl terephthalate and dipotassium terephthalate, which is separated by dissolving the salt in water; the phthalic anhydride used for treating the original solution may be replaced by a mixture of benzenecarboxylic acids obtainable by the oxidation of crude xylene, or the original precipitation may be carried out with carbonic acid, as described in Specification 816,248. Example 2 describes a similar process in which the original precipitation is effected with benzoic acid and the esterification is effected with methanol at 310 DEG C. in the presence of zinc borates. Example 3 describes the esterification of monopotassium terephthalate with ethylene oxide to yield bis-b-hydroxyethylterephthalate, and in Example 4 a continuous method of effecting this esterification is described.
Patent GB-1492354-A (GB)
Title: Toy building element
IPC: A63H33/06
Filed: 1976-03-17
Abstract: 1492354 Toy building elements H A FOLLEY 17 March 1976 [24 March 1975] 10827/76 Heading A6S  A toy building element 10 comprises a rectangular hollow body whose upper face 16 includes flanged connecting studs 18, 22, respectively projecting upwardly and downwardly, the bottom face 26 of the body being open. When two elements 10 are interlocked one downwardly projecting stud 22 rests between four adjacent upwardly projecting studs 18 on the other element, the wedgeshaped flange 24 of the stud 22 and those 20 of the studs 18 mutually engaging behind each other. The elements 10 are of a flexible plastics material. The height of the sides and ends 12, 14 of the element 10 is less than or equal to the sum of the heights of the studs 18, 22 plus the thickness of the top face 16. Stiffening members 38 join alternate ones of the downwardly projecting studs 22 to each of the sides 12.
Patent GB-260498-A (GB)
Title: Improvements in holders for writing sheets or pads
IPC: B41L3/02
Filed: 1926-04-24
Abstract: 260,498. Bisang, A. X., and R³egg, H. J. April 24, 1926. Book-keeping: manuscript pads; hand-rests.- A device for holding loose sheets during the writing of duplicated entries in book-keeping comprises a base plate a with offset members h secured at the corners to receive spring-pressed plungers g which clamp the corners of the sheets k, and with studs l to engage apertures in the sheets. A spring i on the stem of each plunger bears upon a disc m provided in its underside with an indiarubber pad n in contact with the paper. To enable the plunger to be held in its raised inoperative position, its stem is provided with a cross-bar h which can be passed through a slot e in the plate b when the plunger is raised, whereupon rotation of the plunger positions the ends of the pin upon the top of the plate b. A hand-rest q slidable and rotatable upon a rail p on the right-hand side of the plate a serves to hold the sheets down and may be used as a ruler.
Patent GB-333525-A (GB)
Title: Apparatus for recording sound waves on metal cylinders
IPC: G11B3/00
Filed: 1929-04-08
Abstract: 333,525. Steinbrecher, F. April S, 1929. No Patent granted (Sealing fee not paid). Phonographic recorders.-Apparatus for recording sound comprises a motor driven rotary cutter 7 arranged to traverse a helical sound track on the metal cylinder 8 and influenced by an armature 9 mounted between the poles 3 of a permanent magnet 2 in such a manner as to be oscillated under the control of sound currents in a coil 10 surrounding the armature, the armature being mechanically coupled to the cutter spindle 7 so as to cause the latter to oscillate bodily in an axial direction.
Patent GB-851118-A (GB)
Title: Improvements in and relating to fluid seals
Inventor: MACASKILL JOHN
IPC: G01M3/28
Filed: 1956-04-10
Abstract: 851,118. Stuffing-boxes. BRITISH THOMSON-HOUSTON CO. Ltd. April 10, 1957 [April 10, 1956], No. 10897/56. Classes 122 (3) and 122 (5). [Also in Group XXXV] A fluid seal for a member, such as for example a stud 5 in the electrical connection between the slip rings and rotor coils of a hydrogen-cooled turbo-alternator, and comprising sealing washers 11 and 12, an enclosed space between the washers, and a passageway leading to the space is tested by connecting the passageway with a source of fluid under pressure or evacuating means and detecting any leakage by a pressure gauge. Insulated conductors 1, 2 extend from the slip rings, located outside the gas tight alternator housing, through a, central bore 3 in the rotor shaft and are electrically connected to the rotor coils by studs 5 and 5a extending through opposite radial bores 6 in the rotor shaft. Leakage of hydrogen passed the stud 5 is prevented by the rubber washers 11 and 12 which are compressed by tightening a screwed plug 15, between a separating insulating washer 13 and further insulating washers 10 and 14 respectively. The washer 13 has grooves 18 and 19 in its inner and outer peripheral surfaces respectively interconnected by radial passages. 20, the inner groove 18 also being connected by a diametrical bore 21 with the inner end of an axial passage 22 in the stud 5. During operation of the alternator the outer end of passage 22 is sealed by a rubber plug 23 compressed by a stud 24. To test the sealing washers 11 and 12, the stud 24 and plug 23 are withdrawn and the outer end 26 of stud 25 is connected to a source of hydrogen at a pressure greater than that of the coolant hydrogen whereby, if either of the washers is leaking, an indication is provided by a decrease in the reading of a pressure gauge associated with the hydrogen source. The stud 5a is connected and sealed in an identical manner to stud 5. Alternatively to the passages 21 and 22 being provided in the stud, they may be located in the rotor shaft and communicated with the outer groove 19.
Patent GB-243976-A (GB)
Title: Improvements in bituminous emulsions
IPC: C08L95/00
Filed: 1925-02-05
Abstract: 243,976. Wailes Dove Bitumastic, Ltd., and Shaw, R. Feb. 5, 1925. Emulsions, making. - Coloured bituminous emulsions are obtained by mixing the bituminous materials and colouring matter with water in the presence of blue clay. According to an example, 3 parts of blue clay are mixed with 3 parts of water, and a mixture of 2 parts of coal tar pitch with 1 part of coal tar heavy oil is added. The colouring is effected by the addition of 5-10 per cent of ferric oxide or 5 per cent of chrome oxide, and 2 per cent of asbestos fibre may also be added. Reference has been directed by the Comptroller to Specification 117,785, [Class 140, Waterproof &c. fabrics].
Patent GB-581215-A (GB)
Title: Improvements in or relating to electric circuit-breakers and switches of the explosion pot type
IPC: H01H33/75
Filed: 1944-06-09
Abstract: 581,215. Oil-blast switches. CANTIE SWITCHES, Ltd., and HELLER, B. June 9, 1944, Nos. 11041 and 19438. [Class 38 (v)] In an oil circuit breaker in which the explosion pot 15 is integral with the expansion chamber 16, 17, which may contain baffles, three fixed contact fingers 18 with arcing tips 19 are secured to the base 21 of a cupbracket 11 supporting an insulating tube 10, a closure cap 13 for which receives a movable contact 22 which also passes through a partition 14 separating the explosion pot 15 from the expansion chamber 16, 17. A flange 28 on cap 13 is separated from a flange 27 on partition 14 by a plate 29 apertured at 30 to provide communication between the parts 16, 17 of the expansion chamber. Three large holes 33, with ball valves 36, and two smaller holes 34, in flange 27 connect the pot 15 with the chamber 16, 17 until the movable contact is withdrawn from the hole 23 in plate 14. The arc-gases pass between the contacts 18 and a wall 37, which extends across the tube and half embraces the contact 22, and escape through the holes 33, 34 and a tortuous passage 32 to atmosphere. Any oil thrown into chamber 16 is returned through the holes 34. In a modification, Figs. 3, 4 (not shown), the wall 37 has several lateral passages formed therein which communicate with the holes 33, 34 and are uncovered by the withdrawal of the contact 22. Specification 571,995 is referred to.
Patent GB-1024700-A (GB)
Title: Flexible winding tape
IPC: H02K3/30
Filed: 1964-03-16
Abstract: Insulating winding tapes for high voltage electrical machines and parts comprise a porous carrier, e.g. a fabric or unwoven web, especially a fabric of glass continuous filaments, polyester fibres or mixtures of these, mica flakes or mica paper, and a coating of an epoxy resin containing no plasticizer, having an epoxy equivalent of 150-400, a viscosity of at least 500 cps at 50  DEG C. (preferably 70,000-90,000 cps), and an adhesion temperature lower than 80  DEG C., and containing a hardener comprising an anhydride such as hexahydrophthalic anhydride or methyl-endo methylene tetrahydrophthalic anhydride, or a latent hardener such as BF3 or dicyandiamide.  The resins used may be derived from bis-phenols but preferably are those containing glycidyl-phenylethyl groups.