baber/WOPTO huggingface dataset:
Patent GB-248658-A (GB)
Title: Improvements in and relating to mixing machines and the like
IPC: B28C5/18
Filed: 1925-10-01
Abstract: 248,658. Mitchell, O., and Ransome Machinery Co. (1920), Ltd. Oct. 1, 1925. Rotary mixers.-In concrete mixing machines of the conical, rotary, tiltable drum type, the stationary shaft 3 on which the drum 1 is mounted is provided with fixed mixing members 8 in addition to the blades 7 carried by the drum. The members 8, which are curved, are adjustably secured to flanges 9 on a bush 10.
Patent GB-1094475-A (GB)
Title: Variable resistors
Inventor: RUSHTON DEREK
IPC: H01C10/34
Filed: 1963-06-20
Abstract: 1,094,475. Variable resistors. JOSEPH LUCAS (INDUSTRIES) Ltd. Sept. 17, 1964 [June 20, 1963], No. 24532/63. Heading H1S. A variable resistor is formed by a printed circuit on at least one of a pair of facing plates 16, 17 (Fig. 2), resilient contact arms 19, one of which moves over the printed resistance arrangement while the other moves over a contact segment on the other facing plate, being carried by a wheel 22 on spindle 10 between the plates. The wheel 22 may have a knurled edge for finger operation. Each facing plate may have a longer and a shorter contact arm moving over it the long arms 18, 19 being connected together and the short arms 20, 21 (Fig. 3, not shown), also being connected together. In such an arrangement one plate carries a printed resistor (or set of resistors in series) with printed contact pads over which the associated longer contact arm moves and also a printed arcuate segment contacted by the shorter contact arm and connected to a terminal. The other plate also carries a resistor connected by the associated shorter contact arm through an arcuate contact segment, the longer contact arm being connected to a second arcuate segment which is connected to a terminal. This segment, the resistor and one of the contact arms may be omitted.
Patent GB-839862-A (GB)
Title: Improvements in or relating to porous polystyrene
Inventor: BRAMSTANG TAGE EWALD
IPC: C08J9/00
Filed: 1956-08-10
Abstract: Polystyrene compositions comprise 6 to 14% by weight of the polystyrene of a flame-proofing substance comprising a mixture of chlorinated paraffin wax and antimony trioxide, the chlorinated paraffin wax preponderating.  Preferred ranges are 5 to 10% of wax and 1 to 4% of antimony trioxide.  The polystyrene may be expanded highly porous, non-inflammable material suitable for heat-insulating purposes.  Specification 785,993 is referred to.ALSO:Non-inflammable highly porous polystyrene is prepared by expanding compositions comprising polystyrene and 6 to 14% by weight of a flame-proofing substance comprising chlorinated paraffin wax and antimony trioxide, the wax preponderating. Preferred ranges are 5 to 10% of wax and 1 to 4% of antimony trioxide.  The expansion may be effected by known methods either continuously or discontinuously, and the product used for heat insulating purposes.  Specification 785,993 is referred to.
Patent GB-502030-A (GB)
Title: Improvements relating to motor vehicle front wheel mountings
IPC: B60G7/00
Filed: 1937-09-09
Abstract: 502,030. Vehicle spring-suspensions. MORRIS MOTORS, Ltd., and ISSIGONIS, A. A. Sept. 9, 1937, No. 24585. [Class 108 (ii)] [Also in Group XXXI] A mounting for independently-sprung steering-wheels comprises a wheel-axle member a secured to the wheel axle, a steering post b passing through the member a, a pair of coupling pieces c in screw-thread engagement with opposite ends of the post, and a pair of parallel motion or like links d connected to the coupling pieces and to the chassis. The screw-threads serve both as pivotal connections and to hold the coupling pieces c on the post b. In the construction shown, the pieces c are connected to the suspension links d by screw-threaded pins g carried by the links d and engaging screwed sockets in the pieces c. Plain pivots g may be provided. Lubrication is effected by means of a nipple k leading into a bore h connected to grooves i, j in the screw-threaded pivots. The ends of the post b are closed by caps m, and dust is excluded by rubber or like sleeves m and washers q. The suspension links d may be single or double. For heavy vehicles they are of the wishbone type as shown, the two arms of the upper link being welded together and those of the lower link being connected by a plate o.
Patent GB-890194-A (GB)
Title: Improvements relating to substituted amino-sulphonic acids
Filed: 1960-07-14
Abstract: The invention comprises N-methyl-N methoxyamino, sulphonic acid and salts thereof, and their preparation by reacting an alkali-metal nitrite with an alkali-metal bisulphite and sulphur dioxide at below 5 DEG C. to form hydroxyimidodisulphonate, methylating to a methoxyimidodisulphonate, hydrolysing in the presence of a strong acid to an N-methoxyaminosulphonate, and methylating in the presence of a strong base, or alternatively by sulphonating N-methylhydroxylamine and methylating the product N-methylhydroxyaminosulphonic acid in the presence of a strong base. The acids may be hydrolysed by strong acid to methylmethoxyamine or salt thereof which may be isolated and in turn be hydrolysed and reacted with an aryl isocyanate to yield 3-aryl-1-methoxy-1 methylurea.  The compounds have pesticidal and herbicidal properties and may be applied as aqueous emulsions or with carriers as granules.ALSO:Herbicidal compositions comprise N-methyl-N-methoxyamino sulphonic acid and salts thereof (Group IV (b)) and they may be used in the form of aqueous, oil-in-water or water-in-oil, emulsions, or admixed with carriers to form granules. A derivative e.g. methyl-methoxyamine sulphate may be hydrolysed and reacted with an aryl isocyanate to produce 3-aryl-1-methoxy-1-methyl-urea which may also be useful herbicides. An example describes an emulsion of ammonium N-methylmethoxyaminosulphonate in water with fuel oil containing a fatty alcohol amine sulphate.  Woody vines and brush and general annual and perennial weeds are controlled.
Patent GB-316040-A (GB)
Title: Improvements in or relating to sliding and folding doors and the like
IPC: E05D15/26
Filed: 1928-08-28
Abstract: 316,040. Aldam, E. H. Aug. 28, 1928. Sliding doors.- The end leaves b of hingedsliding doors, windows, &c., are hinged to the side of the door opening by means of a folding flap comprising two or more hinged parts h, g, by which the door is allowed to move into a folded position adjacent to the opening and side wall and at right-angles to the opening. The flaps h, g, may be connected by an adjustable flexible member to prevent them getting into line. The pivoting points f<1>, h<1>, are approximately in line with the track. A recess may be provided in the side walls to house the leaves when folded, or floor stops may be provided to retain the leaves in the folded positions. The leaves are hinged by butt hinges x and suspended by trolleys C - - C<2>, and are guided below, preferably by pairs of rollers d, Fig. 5, carried by plates d<1> fixed to the hinge pins.
Patent GB-1102034-A (GB)
Title: Improvements in or relating to ultransonic wave transmission systems
Inventor: FAIR IRVIN ERNEST
IPC: H01Q3/44
Filed: 1965-06-11
Abstract: 1,102,034. Electromechanical delay lines. WESTERN ELECTRIC CO. Inc. 11 June, 1965 [11 June, 1964 (2)], No. 24733/65. Heading H3U. An ultrasonic dispersive delay line comprises a wedge-shaped block 10 e.g. of glass or metal, having edges 11, 12 to which piezo-electric transducers are bonded. The transmitter transducer comprises a tapered crystal 16 and electrodes 17, 18; similarly, the receiver transducer comprises a tapered crystal 24 and electrodes 22, 23. A source 15 applies to the electrodes 17, 18 pulses having multifrequency components extending over the range f 1 -f 2,  these frequencies having corresponding wavelengths #1-#2, the thickness of the crystal #1 #2 16 at its ends being made equal to -and -, the 2 2 crystal 24 having similar dimensions. The tapered shape of the crystals causes them to resonate at different points along their length in response to a particular frequency component. Thus, the frequency f 1  causes the remote end of the bar to resonate and the signal to traverse a length l 1  in the block 10 and be received by the resonating remote end of crystal 24. Similarly, the frequency f 2  is transmitted between the near ends of the crystals and traverses a distance l 2  in the block 10; the intermediate frequencies being transmitted between intermediate points along the crystals. Owing to the difference between the lengths l 1  and l 2  due to the wedge shape of the block the different frequency components are delayed by correspondingly different amounts. In another embodiment (Fig. 4, not shown), the transducer crystals are not tapered and the receiver transducer has one electrode formed by a ladder-like array 42 having cross-pieces 46, 47, the spacing between adjacent crosspieces varying along the length of the electrode and being such as to introduce phase changes of 360 degrees at adjacent cross-pieces for particular frequency components. Thus, at the far end of the array 42 the frequency f 1  produces phase changes of 360 degrees in adjacent cross-pieces 47 and at the near end the frequency f 2  produces phase changes of 360 degrees in the oross-pieces 46 and a signal is generated at 25. No signal is generated at 25 by the frequencies f 1 , f 2  from intermediate points along the array since the phase changes are other than 360 degrees and the effects cancel each other out.
Patent GB-787926-A (GB)
Title: Application of strip coating to cathodes
IPC: H01J9/04
Filed: 1955-08-30
Abstract: 787,926. Cathode materials and processing. SYLVANIA ELECTRIC PRODUCTS, Inc. Aug. 30, 1955 [Aug. 31, 1954], No. 24913/55. Class 39(1). A cathode is coated with an emissive layer by a transfer of the layer from a flexible backing member on which it is initially formed. The backing member 10 may be thin metal, or calendered paper, and the coating applied by any usual method. It consists of a triple carbonate suspended in a binder, of which a number of alternative compositions are specified. A dual-density coating is preferred, a second, less dense, coating being added to the first. When required for use, the structure is cut up into strips 14, and then into separate leaves 16. The tubular cathode sleeve is wetted in a solution which will dissolve the binder, and then is laid on the leaf, as in Fig. 3. On contact, the coating comes away from the backing member, and wraps round the cathode, as in Fig. 4. Alternatively, the coating may be detached from the backing member first, and then the wetted sleeve laid on it ; or the sleeve may be laid on dry, and the liquid applied subsequently. The coating may be applied directly to a heater wire to form a directly heated cathode, or to the face of a flat button cathode. The coated backing member may be conveniently rolled up for storage, and is also suitable for use in automatic assembly.
Patent GB-484773-A (GB)
Title: Slide valve
IPC: F16K31/50
Filed: 1937-09-13
Abstract: 484,773. Slide valves. WENNERBY, A. O. L. Sept. 13, 1937, No. 24917. Convention date, Jan. 29. [Class 135] A slide valve which has spaced valve seats 2 pressed into sealing engagement with the valve member comprises a valve member divided into two halves 6, 7 by a plane perpendicular to a rotary screwed spindle 4 which is prevented from axial movement and has right- and lefthand threaded portions on opposite sides of the valve passage whereby the two halves of the valve may be moved toward and away from each other to control the valve passage. The middle portion of the spindle is of reduced diameter so as to offer the least possible resistance to the passing fluid when the valve is open. The spindle 4 has a bearing pin 5 at its lower end and is restrained against upward movement by a collar or offset portion thereon. The valve seats 2 are provided with piston rings 8 and are pressed against the valve member by resilient rings 9 aided by the pressure of the fluid to be passed through the valve. The halves of the valve member may be guided by keys or slots in the valve casing or by pins in one of the halves entering bores in the other half. The valve spindle may be located near the side of the valve casing.
Patent GB-171223-A (GB)
Title: Improvements in or relating to anti-friction devices for sliding doors
IPC: E05D15/06
Filed: 1920-08-30
Abstract: 171,223. Elliott & Sons (Reading), Ltd., S., and Lyons, C. Aug. 30, 1920. Rectilinear-motion bearings.-The rollers e of sliding doors, panels &c. are mounted on ball bearings carried in two cones on a rivet of squared or other section secured in a channel member extending along the whole or part of the bottom sash of the door and, if desired, of the top sash also. The bottom of the channel between the rollers is closed by a strip or bar b<1> to exclude dust. The edge of the glass may be protected by a shield d secured in openings in the bar b<1>.
Patent GB-1096637-A (GB)
Title: Sieve drum treatment device
IPC: F26B13/16
Filed: 1966-06-06
Abstract: A textile treating apparatus comprises one or more rows of sieve drums in an insulated chamber, the fans of at least some of the drums adjacent to the entrance to the chamber are eccentrically mounted relative to the end walls of the drums in order to have larger diameter fans and thereby greater suction within these drums.  Side portions of the side walls of the drums having eccentrically arranged fans are stationary and allow relative rotation thereto of the drum jacket.
Patent GB-162631-A (GB)
Title: Improvements in locks
IPC: E05B9/08
Filed: 1920-08-31
Abstract: 162,631. Wycherley, A. J. April 30, 1920, [Convention date]. Locks, revolving- barrel; preventing drilling of.-To prevent the release of a cylinder lock by violence applied to the face-plate so as to turn the barrel as a whole, the outer barrel 13 is surrounded by a fitting, as shown in Fig, 5, having its end 6 non-cylindrical, preferably rectangular, to fit a corresponding aperture in the door. The opening in the part 6 is of the form shown at 8, 9, 10 to fit the lock. The near portion of the fitting may be made wholly or in part of hardened steel to prevent drilling for the passage of a tool to grip and turn the connector 16.
Patent GB-1195478-A (GB)
Title: Improved Polymers from Essentially Water-Insoluble Unsaturated Liquid Monomers and process for preparing same
Inventor: NELSON ALFRED RICHARD
IPC: C08F14/06
Filed: 1968-05-27
Abstract: 1,195,478. Polymerization process. DOW CHEMICAL CO. 27 May, 1968 [29 May, 1967; 4 April, 1968], No. 25188/68. Heading C3P. A water-insoluble, ethylenically unsaturated liquid monomer forming polymers insoluble in their monomer are formed by polymerizing the monomer to 1-20% conversion with a continuous monomer phase (in bulk or water in monomer dispersion), adding water to form a monomer in water dispersion and completing polymerization. The following monomer feeds are exemplified: vinyl chloride, vinyl chloridevinylidene chloride, vinyl bromide, vinylidene chloride-vinyl chloride-methyl methacrylateacrylic acid and vinylidene chloride-vinyl bromide. When the first stage is effected with water present a monomer soluble dispersing agent is added, e.g. sorbitan monostearate or tristearate. A cellulosic dispersing agent is used and a monomer-soluble catalyst, e.g. isopropyl peroxycarbonate and/or lauroyl peroxide. The products are highly uniform spherical particles with a dry density of 0À35-0À80.
Patent GB-253143-A (GB)
Abstract: 253,143. British Thomson-Houston Co., Ltd., (Assignees of Hall, C. I.). June 5, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Ele c tromagnetic switches; mercury switches.-Relates to regulating systems in which the operation of a thermal, pressure, or like switch 11 causes the energization of one of two electromagnets 16, 17 and the consequent movement of a switch member 14 to its other position in which the operating electromagnet is cut-out of circuit and another circuit, e.g. to a motor 10 opened or closed. According to the invention, the switch 14 is a mercury or like switch having sufficient delay action due to the inertia of the mercury &c. to prevent the operating electromagnet being cut out before it has completed its stroke. The mercury switch comprises a vessel 21 which may be exhausted or filled with non-oxidizing gas, and contains a globule of mercury adapted to bridge either contacts 18 or contacts 19. The inner contacts 18, 19 are connected through a band 26 with a lead 29. With the parts in the position shown, a circuit is completed from a supply line 12 through the motor 10, contacts 18, lead 29 to the other line 12. When the temperature conditions are such that the thermal element 11 engages the contact 30 a parallel circuit is closed through electromagnet 17 and contacts 18, and the mercury switch is tilted into its other position, a device 28 ensuring a quick and positive action. The mercury flows to the other end of the tube breaking the circuits of the electromagnet 17 and the motor 10 and preparing a circuit through contacts 19 and electromagnet 16 which is eventually closed when the thermal element 11 engages the contact 31.
Patent GB-212498-A (GB)
Title: Apparatus for projecting pictures on a screen
IPC: G03B33/00
Filed: 1923-10-11
Abstract: 212,498. General Electric Co., Ltd., and Dean, B. Oct. 11, 1923. Lantern shutters. - Pictures on a translucent carrier are projected on to screens by placing within the carrier, which is cylindrical, a source of light, and for modifying the pictures by colouring or adding clouding effects rotary members are disposed within the carrier and arranged to be moved independently. The carrier b consists of two members d, e, on the outer of which landscapes &c. are reproduced and on the inner one pictures of clouds. The cylinders d, e are rotated independently. A stationary picture or a moving panorama may thus be produced on the screen or background of a stage. A number of semicylindrical members, differing in character and colour are arranged so that they can be raised or lowered independently to modify the effects produced, and may be such that parts of the picture are obscured when between the source of light and the cylinders d, e.
Patent GB-921824-A (GB)
Title: Improvements in and relating to vertical conveyors
Inventor: CUTTLE GEOFFREY
IPC: B66B17/26
Filed: 1960-08-21
Abstract: 921,824. Operating the doors of skips in skip hoists. SIMON-CARVES Ltd. Aug. 15, 1961 [Aug. 21, 1960], No. 25397/60. Class 78 (4). The vertically-sliding door 16 of a skip 15 in a skip hoist is opened, upon movement of the skip, by a fixed abutment 31 on the framing. In the form illustrated, two abutments 31 engage stops 38 on a carriage 24 running in guides 23 and connected by chains 22 passing over pulleys 21 on the skip to the door 16. The door is guided by rollers 18, or by sliding members, engaging guides 20. The abutment 31 is preferably carried on a rubber mounting 31c. If the skip is over-wound the carriage 24 is retracted by a curved portion 23a of the guides 23.
Patent GB-789187-A (GB)
Title: Improvements in horizontal bearing, facing and milling machines and like machine tools
IPC: B23B39/02
Filed: 1955-09-05
Abstract: 789,187. Boring, facing and milling machines. INNOCENTI SOC. GENERALE PER L'INDUSTRIA METALLURGICA E MECCANICA. Sept. 5, 1955 [Sept. 6, 1954], No. 25405/55. Class 83 (3). A horizontal boring, facing and milling- machine has an attachment for extra boring and milling spindles secured to the front face of a horizontally-sliding head. The casing 1 of the attachment is secured to the end-flange 2 of a sliding-head 3 and carries an offset vertical spindle 5 driven by worm-gearing 12, 11, from an auxiliary power take-off-shaft 17 through a clutch 16. The spindle 5 carries a milling- cutter 8 at its lower end. A further milling- cutter 21 is carried on a sleeve 6, mounted in the attachment, surrounding the normal boring- bar 19 and driven from the drive for this bar. When the machine has a rotating work-table, turning-tools 24 may be secured in rests on the lower face of the attachment, and a boring-bar 25 may be secured in a socket on the attachment. In a modification, the vertical spindle milling-cutter drive may be taken from the sleeve drive and the power take-off-spindle used to drive a socket extending through the front face of the attachment for a boring or milling- tool.
Patent GB-761245-A (GB)
Title: Improvements in and relating to electric transformer windings
Inventor: MCDONALD DUNCAN
IPC: H01F27/36
Filed: 1953-09-15
Abstract: 761,245. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 19, 1954 [Sept. 15, 1953], No. 25523/53. Class 38 (2). A transformer comprises high voltage and low voltage windings 3, 2, each wound in coaxial series - connected cylindrical layers on a core 1, one end of each winding being connected to a common cylindrical earthed screen 6 located between the windings, the windings being reversely wound, i.e. the bottom ends of each layer is connected to the top end of the layer outside it in one winding and inside it in the other. The winding layers become progressively shorter in the axial direction as the voltage increases towards the line ends of the windings. Line shields 5, 8 may be located outside the outer winding and inside the inner winding. The interlayer connections and line shields may be in the form of frusto-conical shields, and the common shield may be composed of two such shields, Fig. 5 (not shown). There may be a tertiary winding inside the inner winding or outside the outer winding. By the invention, better use of the core window is made and the space between the windings, and consequently the transformer reactance are reduced.
Patent GB-705104-A (GB)
Title: Improvements relating to combined electric switches and connecting means
IPC: H01R13/707
Filed: 1951-11-01
Abstract: 705,104. Tumbler switches. COOK, F. L., and WILLIAMS PROPRIETARY, Ltd. Nov. 1, 1951 [Nov. 2, 1950], No. 25557/51. Class 38(5) [Also in Group XXXVI] In a combined socket-outlet and manuallyoperable switch therefor, the switch is of the deadcentre, snap-action type comprising a pivoted actuating member 18, acting through a compression-resisting spring toggle 22 on a pivoted contact carrier 19, which may carry a single contact 19<SP>1</SP> or a contact bridge. The body 10 of the socket has a lever 23 pivoted intermediate its ends thereon, one end of the lever bearing on a laterally-displaceable jaw of a U-shaped socket contact 11 and the other end projecting into the path of the contact carrier 19. Whilst a plug is detached from the socket, the lever 23 is pressed by a spring 25 against carrier 19 and prevents actuation of the switch, the spring 25 being stronger than the spring of the toggle 22, but on insertion of a plug, lever 23 is rotated away from the carrier 19 by the displaceable socket contact jaw and permits the switch to be operated. Withdrawal of the plug with the switch "on" causes lever 23 under the pressure of spring 25 to move carrier 19 to the " open" position and preferably actuate member 18 to its "off " position.