baber/WOPTO huggingface dataset:
Patent GB-272899-A (GB)
Title: Improvements in and relating to differential or wheatstone bridge circuit arrangements
IPC: G01R17/10
Filed: 1927-06-10
Abstract: 272,899. Rio, A., and Levy, L. June 15, 1926, [Convention date]. Thermionic amplifiers.-The ratio arms of a Wheatstone bridge are replaced by differential or opposed electromotive forces E, E<1>, Fig. 3, either- or both of the resistances 1, 2 constituting the other arms comprising the plate-filament gap of a valve. The resistance 1 to be measured may be replaced by a voltage drop along a resistance, When the bridge is unbalanced, a potential is applied to the grid-filament circuit of a valve 5, the plate circuit of which contains a galvanometer 6. The connection to the filament may be effected by means of a potentiometer resistance 8 as shown in Fig. 3, or direct to one end of the filament. The connections to the grid and filament may be interchanged. The resistance 1 may be the resistance of one or more selenium cells or other photo-electric cells, or the platefilament resistance of a triode forming part of another differential circuit arrangement. A switch may be provided by means of which the resistances 1, 2 may be interchanged. Fig. 5 shows a circuit arrangement in which the resistance to be controlled is that of the plate-filament gap of a valve in an amplifying system 14 of high or low frequency. Such a circuit is stated to amplify without distortion because the differential system controlling the plate-filament variations of the valve 12 contains neither impedance nor capacity. A loud speaker 15 may be connected in the plate circuit of the triode 5.
Patent GB-766366-A (GB)
Title: Improvements in or relating to holders for photographs, motor vehicle licences, and the like
IPC: B60R13/10
Filed: 1954-05-26
Abstract: 766,366. Picture frames. ACKERHALT, R., and BICK, O. J. April 5, 1955 [May 26, 1954], No. 15518/54. Class 11. [Also in Group XVIII] A holder for a motor vehicle licence, a photograph or an identity card comprises a frame 1 a centrally apertured masking plate 4 which is secured, as by gluing, to the frame for retaining the photograph 6 or the like therebetween, and a magnet 10 in or on the frame for positioning purposes. The rim 2 of the frame is interrupted to enable the photograph and a window 5 of transparent plastic material to be positioned. The magnet is glued to a cover plate 9 which is cemented to the frame 1. The frame may be made of resilient or rigid plastic material and, if desired, at least partially covered with leather, leather substitute or synthetic resinous material. The plate 4 may be made of flexible or resilient material or compressed cardboard treated to resemble leather. The holder may have a hook or clip, fixedly or adjustably mounted thereon, for supporting a bag or gloves.
Patent GB-568518-A (GB)
Title: Improvements in or relating to rotary pumps and fluid pressure motors of the vane type
IPC: F01C21/08
Filed: 1943-09-23
Abstract: 568,518. Rotary pumps and engines. COCKBURN, D. H. Sept. 23, 1943, Nos. 15638 and 15639. [Class 110 (ii)] In a pump or engine of the outwardly - sliding vane type, packing members 22, shaped as in Figs. 3 and 7 are mounted in the tips of the vanes 21, or the members 22 may themselves be mounted in recesses in the rotor, and act as vanes. Passages 42, 43, in the members 22, and 35 in the vanes, allow fluid under pressure to pass to recesses 34 at the bases of the vane slots 20. The casing comprises a ring 11, end facings 12, 13, carrying bearings 15, 16, and a flange 29 for securing the pump to a support. Each member 22, which may be of metal or synthetic resin, rocks relatively to its vane, a slight clearance 37 being allowed for pressure fluid to pass to the rear of 22. In place of one continuous passage 42 along the member 22, two or more longitudinal grooves, each with a passage 43, may be enough. Alternatively a number of holes may be provided along the face of each member 22. Fig. 7 shows a means for anchoring a member 22 in its vane ; the tips 47, 48, are pressed over as shown. The rotor may rock slightly, longitudinally, on shaft projection 52, or barrel-shaped parts 63, Fig. 9. Opposite pairs of vanes may be connected by thrust rods 55, Fig. 8, bearing on intermediate members 57, 58, 59. The bearing surface between the rotor 19 and the shaft 17 is provided by a circumferential bulge 65, Fig. 9, which fits inside the rotor. Grooves may be formed in the end walls adjacent one or both points 25, 26, so as to permit fluid to flow into and out of the space at the inner part of each rotor groove. One or more loosely fitting pins or like fastenings may be used to connect each member 22 with its vane so as to prevent their coming apart when the pump is inoperative. The capacity of the pump or motor may be varied, by adjusting the eccentricity of the rotor within the casing. The first Provisional Specification refers to springs being used to help thrust out the vanes.
Patent GB-680842-A (GB)
Title: Improvements in wads for sporting cartridges
IPC: F42B7/08
Filed: 1950-06-22
Abstract: 680,842. Cartridge wads. ESTEBAN, J. F. REYNOLDS-. June 22, 1950 [June 23, 1949], No. 15646/50. Class 9(i) A wad for a shot cartridge comprises two cork discs 1, 2 with stems 3, 4 between which is placed a ring 5 of felt impregnated with paraffin. When the discs are pressed on to the felt ring, the stems 3, 4 compress the underlying part of the ring to form an annular rib 8 surrounding an air space 6. In modifications the stems 3, 4 may be frusto-conical or have a stepped profile. To make the felt rings, bands of the required width and length are cut from felt 4 to 5mm. thick and put in a paraffin bath at about 70‹C. The bands are then fed between two rollers to remove excess paraffin. From the rollers they pass to a heated tube where they are bent to form a cylinder the edges being held together by the paraffin. The felt tubes then pass to two spaced cold tubes and as they emerge are cut into rings. The wads are assembled by placing the elements in a plate, which is then heated to render the felt rings malleable, the cork discs are then placed in position and the assembled wads passed through a cold press.
Patent GB-1381953-A (GB)
Title: Fire fighting compositions
IPC: A62D1/02
Filed: 1972-04-05
Abstract: 1381953 Foamable fire-fighting composition NATIONAL FOAM SYSTEM INC 5 April 1972 [6 April 1971] 15650/72 Heading A5A An aqueous foamable concentrate for use in fire-fighting comprises a water-soluble fluorocarbon surfactant and a water-soluble silicone surfactant, the fluorocarbon surfactant having a hydrophobic perfluorinated carbon chain acyclically connected to a hydrophilic moiety and being anionic, amphoteric or cationic, the silicone surfactant being anionic, nonionic or amphoteric and having a silicone moiety containing two to seven silicon atoms and a hydrophilic moiety for every one-half to four silicon atoms in the silicone moiety, its silicone moiety being otherwise fully methylated, and the resulting mixture of surfactants having 20 to 80% by weight of the fluorocarbon surfactant provided that when the silicone surfactant has a hydrophilic moiety for every one to one and a half Si atoms in the silicone moiety and at least two hydrophilic moieties attached to the same Si atom the resulting mixture of surfactants has from 7-80% by wt of the fluorocarbon surfactant. The concentrates may be diluted 16-35 times in use. Optional ingredients include a hydrophilic resin, (e.g. natural or synthetic gum or copolymers of maleic anhydride and ethylene or methyl vinyl ether) a buffer (e.g. tris (hydroxymethyl) amino methane) a foam-building surfactant (e.g. Na lauryl sulphate or a betaine) an alcohol or glycol solvent, and an acetylenic glycol surfactant.
Patent GB-1119380-A (GB)
Title: Process for preparing a crystalline uniformly sized granular detergent composition
IPC: C11D3/08
Filed: 1967-04-05
Abstract: A process for preparing a crystalline particulate granular detergent composition comprises forming a precursor slurry containing from 20-70% by weight of an alkali metal trimetaphosphate, from 20-45% by weight of water and from 0-25% by weight of a foaming agent, adjusting the temperature to from 140-212 DEG  F., adding a strong base (one giving a pH of at least 10.2 in a 1% by weight solution in distilled water at 25 DEG  C.) to the slurry in an amount of from 1.5 to 3 mole equivalents of hydroxyl ion per mole of alkali metal trimetaphosphate thus forming a tripolyphosphate salt and hydrating the tripolyphosphate and vaporizing water in the final slurry to give a foamed mass comprising a detergent composition containing hydrated tripolyphosphate salts; which process further comprises adding and mixing homogeneously into said precursor slurry, substantially contemporaneously with the addition of said base a granular silicate compound which remains partially undissolved before and during the above hydrating-foaming stage said silicate compound being added in a weight ratio of silicate to alkali metal trimetaphosphate of from 0.02:1.0 to 2.5:1.0 and having an SiO2:Na2O molecular ratio of from 1:2 to 2:1 at the time of addition to the precursor slurry.  Suitable foaming agents, if used, are surface active agents.  Defoaming silicones may also be added to the precursor slurry before or simultaneously with the addition of the base and the silicate compound.  The detergent slurries may also include the traditional additives usually desired in detergent compositions including builder salts.
Patent GB-1129635-A (GB)
Title: Improvements relating to false ceilings
IPC: E04B9/30
Filed: 1966-04-07
Abstract: 1,129,635. False ceilings. E. O. V. EKMAN, B.- BRUNDIN and C. O. A. EKMAN [trading as LICENTIA, EKMAN & BRUNDIN]. 7 April, 1966 [12 April, 1965], No. 15675/66. Heading E1W. A sheet 4 of plastics foil is held stretched within a frame surrounding a room to form a false ceiling by the engagement of a border of Ithe sheet within a longitudinal channel in the frame facing into the room. which channel is formed with a shoulder 13 facing the base of the channel, the border being of resilient plastics material and having in use, a U-shaped cross-section with an upper thinner flange 5 fixed to the sheet 4 and with a lower thicker flange 6 the free edge of which engages the shoulder 13. Tension of the sheet 4 causes the border to tilt in the channel so that the base of its U-section wedges against the upper wall 10 of the channel. The border may be of a preformed U-section or may be bent into U-form when inserted into the channel. The thickness of the free edge of the flange 6 may be greater than the height of the shoulder 13 to enable a pointed tool to be engaged with the flange 6 in order to disengage the border from the slot to dismantle the ceiling. Reference has been directed by the Comptroller to Specification 1,008,531.
Patent GB-107709-A (GB)
Title: Improvements in or relating to Lamps.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: F21V33/00
Filed: 1916-11-02
Abstract: 107,709. Jackson, W. J. Mellersh-, (Pearson, W. E., and O'Neill, H. G.). Nov. 2, 1916. Lamps combined with mirrors and powder-puff cases.-A portable lamp has means for turning the light on or off, a flat or convex mirror for observing the features of the face &c., and a reflector, preferably forming part of the lamp cover, for directing the rays from the light source to the face &c. being observed. Fig. 3 shows a battery lamp provided with a convex observation mirror M<1>, which, together with its hinged frame 22, forms the cover of a powder-puff chamber 21 formed on the battery . case, the frame being held in position by a spring locking-clip 26.
Patent GB-1471924-A (GB)
Title: Decorative lamp
IPC: F21S13/12
Filed: 1974-04-09
Abstract: 1471924 Lamps FAROY Inc 9 April 1974 15745/74 Heading F4R A decorative lamp comprises a candleholder 20 carrying a design and an outer shell 10 made of frosted or etched glass, the candleholder being spaced from the shell so that light from a candle flame 26 casts an image of the design on to the inside surface of the shell, the image being visible from the outside.
Patent GB-109690-A (GB)
Title: Improvements in Constructional Steel and Iron Work.
Inventor: GUEST WILLIAM
IPC: E04H12/10
Filed: 1916-11-06
Abstract: 109,690. Guest, W., and Lenox, H. Nov. 6, 1916. Girders and beams; columns; roofs.-Constructional ironwork for buildings, towers, gantries, platforms, hoists, &c. is made up of units each consisting of a plate A, Fig. 1, with flanges B, C extending round its periphery and having holes B', C<1> to receive bolts for securing the units together and to strengthening plates E, F in the manner shown in Figs. 2, 3, and 4 to form various types of columns, girders, beams, &c., or for securing them to angle pieces G, Fig. 6, in the erection of roofs of buildings &c. The plate A may be corrugated at A<1> as shown.
Patent GB-833858-A (GB)
Title: Improvements in and relating to transformers or choking-coils
IPC: H01F27/28
Filed: 1958-05-16
Abstract: 833,858. Transformers. SMIT & CO.'S TRANSFORMATORENFABRIEK N.V., W. May 16, 1958 [May 28, 1957], No. 15873/58. Class 38 (2). Coils 3 and 4 (Fig. 1) of a transformer or choke winding are connected in series by a thin elastic strip member 5 which is under light tension so that, if the coils are contracted owing to shrinkage of the insulation, the strip 5 will not bend and thus reduce its insulating distance from one of the coils. The strip 5, which is arranged in the cooling space 2, may be a strip of metal plate notched and slotted as shown in Fig. 2 or may be made of a number of wires secured together by welding or soldering to form a strip as shown in Fig. 3.
Patent GB-1181685-A (GB)
Title: Control System
Inventor: SOBOTTA WERNER
IPC: B64C1/00
Filed: 1967-04-06
Abstract: 1,181,685. Automatic control. VEREINIGTE FLUGTECHNISCHE WERKE G.m.b.H. April 6, 1967 [April 6, 1966], No.15922/67. Heading G3R. In a system in which a control member for a variable is automatically regulated to eliminate error between the magnitude of the variable and a desired magnitude, input and/or feedback impedance associated with an operational electronic control amplifier is automatically varied in dependence on the magnitude of the error or variations of the control member. In Fig.7, deviations in the attitude of an aerial body 14 are detected by a gyro 13 signals from which are applied through one resistor R 1  to an amplifier 15 in opposition to signals, representing a desired attitude, applied through another input resistor R 1 . The output of amplifier 15, which thus varies with the attitude error, is applied to a rudder 17, having a limited range of movement, which corrects the attitude. Input and feedback impedances provide differential and integral components of control. The amplifier feedback is derived from a potential divider which includes a resistor 19 having two sliders, one, 20, of which is moved in dependence on attitude as detected by the gyro, and the other, a double slider 22, 22a, of which is moved in dependence on the desired attitude setting. The sliders occupy the position shown when the attitude is correct but more relative to one another, when there is error, to increase the feedback and reduce the gain with increase of error so that the gain is as high as possible without instability. In another arrangement, without an integral component of control, the amplifier feedback is through a fixed resistor and the input resistors are each provided with two sliders which are moved in dependence on the actual and desired values of attitude to vary the gain. Variation of the amplifier input and/or feedback impedance in dependence on deflection or rate of deflection of a control member such as a rudder is referred to.
Patent GB-1281482-A (GB)
Title: Improvements in or relating to stone bases
Inventor: AXELSSON HELGI
IPC: A47B13/02
Filed: 1970-04-03
Abstract: 1281482 Tables, stands, furniture feet H AXELSSON 3 April 1970 15994/70 Headings A4H and A4U [Also in Divisions B6 and F4] A stable base for a household article is produced by removing a portion of stone in its original natural form to define a single resting plane surface (defined as a resting surface in a single plane cutting the stone through one or more portions so that if there is more than one such portion then each of the portions will simultaneously rest on the surface on which the stone is arranged) and making a bore in the base to receive the household article. The household articles mentioned are a standing lamp, standing ashtray, a chair, a table, a flowerpot holder, a newspaper holder, a candlestick, a book support, a penholder or a fireplace tool holder. As shown in Fig. 4 an electric lamp base comprises stone having its lower portion removed by sawing to form a resting plane surface which is covered by layer 2 of felt, plastics or rubber. An upright bore 3 to accommodate the stem of the lamp and a second bore 4 is provided, insulated cable being drawn through the bores and the stem.
Patent GB-1034922-A (GB)
Title: Telecommunication exchange apparatus
Inventor: TRUEMAN ROY
IPC: H04Q11/04
Filed: 1963-04-24
Abstract: 1,034,922. Automatic exchange systems. ERICSSON TELEPHONES Ltd. March 26, 1964 [April 24, 1963], No. 16071/63. Heading H4K. In a time division multiplex exchange an incoming call is supervised by a terminating unit which comprises at least two circulating stores, one of which stores contains a pulse circulating at the time position allotted to the call and the other of which exchanges signals with the highway when it is connected thereto under control of the circulating pulse. An incoming call on the junction i/c J is routed through switches K, L to a terminating unit TSu. The latter seizes a register TR via switch E, reverts a " seizure " signal to the junction and then repeats incoming digits to the register. When all the digits have been received, a marker MKR is taken into use and the called party's line is marked, whereby he can be connected over the multiplex highways between switches A, C, L and K to the junction. Since each subscriber is allotted a fixed pulse position and only has access to a limited number of highways it may be necessary for the marker to seize anotherTSU to complete the connection, the original TSU and register dropping out when this has been achieved. The TSU holds all the switches in the speech path and it controls all forward and backward signalling, e.g. ringing, N.U., equipment engaged, busy, reply, class of service &c. and for this purpose it " splits " the highway at position X in order that the relevant signals only pass in the correct direction. Party line stations are rung by signals of different frequencies. The TSU contains provisions for call-tracing, for controlling the operation of a coin and fee check circuit (not described), for ringing PBX subscribers and for releasing PBX and main exchange equipment in dependence upon whether the calling or called party hangs up first. The TSU also returns special tones to subscribers who fail to disconnect themselves after a conversation. The pulse-circulating store comprises two regenerative stores ST1 and ST2 (Fig. 3a). Initially, the required pulse is inserted into store ST1. One or more time frames later the pulse is inserted into store ST2 (input SO1 of gate G36) and is deleted from ST1. During a later time frame the pulse is reinserted into store ST1 (gate G37) and thereafter the pulse is available at both outputs SO1 and SO2 once each time frame. This pulse serves to recirculate any information contained in the other circulating stores of a TSU and in conjunction with the various timing pulses generated by the central pulse source (not shown) it controls the various gates located between the stores and the highway.
Patent GB-819762-A (GB)
Title: Improvements in systems for extracting heat from gas cooled nuclear reactors
Inventor: FOLL JEAN LE
IPC: G21D5/04
Filed: 1957-05-21
Abstract: 819,762. Nuclear reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 21, 1957 [May 28, 1956], No. 16128/57. Drawings to Specification. Class 39(4). In a gas cooled reactor, the thermal energy generated by the reactor is transferred to a steam boiler by the coolant, carbon dioxide gas. The latter, after leaving the reactor drives a gas turbine which is coupled to the pump circulating the cooling gas. The gas is cooled before entering the pump. In one embodiment, two heat exchangers are incorporated in the cooling gas circuit. The first, situated between the reactor coolant outlet and the gas turbine superheats the steam from the boiler. The second, situated in the turbine exhaust heats the cooling gas prior to entry to the reactor.
Patent GB-553801-A (GB)
Title: Improvements in and relating to electro-magnetic induction apparatus
IPC: H01F30/12
Filed: 1941-12-15
Abstract: 553,801. Transformers ; reactors. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 15, 1941, No. 16137. Convention date, Dec. 18, 1940. [Class 38 (ii)] A polyphase transformer or reactor has its core structure built up from a number of wound strip elements 14, 15, 16 equal in number to the number of phase windings 11, 12, 13 each core element linking a different pair of windings. The smaller elements 15, 16 may be spaced apart as shown to provide a ventilating duct 24 and to prevent cross-over of flux. The reluctance of the different flux paths may be equalized by making cuts in the strip during assembly, a larger number of cuts 33 being made in the smaller elements, and a smaller number of cuts 34 being made in the larger element 14. Specifications 537,596 and 545,229 and U.S.A. Specification 2,199,116 are referred to.
Patent GB-534331-A (GB)
Title: Improvements in or relating to grip-and-release devices
IPC: B64D1/06
Filed: 1939-06-01
Abstract: 534,331. Fastenings ; hooks. GOODE, J. A. R. June 1, 1939, No. 16157. [Classes 44 and 89 (ii)] A catch comprises a pair of pivoted claws 1, 11 and an axially slidable cam member 3 between them for effecting their opening and closing against gravity or spring action.
Patent GB-1105132-A (GB)
Title: Improvements in or relating to control systems for electric motors
Inventor: PAYNE IVAN SALISBURY
IPC: B60L11/18
Filed: 1964-04-20
Abstract: 1,105,132. Control of D.C. motors. LANSING BAGNALL Ltd. 14 April, 1965 [20 April, 1964], No. 16217/64. Heading H2J. When thyristor SCR1 is fired, the rising load current from battery 11 to motor 10 induces a voltage in transformer T to charge capacitor C1 through diode D2. Firing of thyristor SCR2 discharges the capacitor to turn off thyristor SCR1 and terminate the current-pulse to motor 10. The thyristors are fired alternately in a cyclic manner to provide a pulsing current supply to the motor. The transformer is wound so that the rate of increase of the magnetic field bears a substantially linear relation to the rate of increase of current at the onset of each pulse. Inductance L1 prolongs the discharge pulse of the capacitor. Diode D3 and resistor R2 assist in discharging the reverse charge on the capacitor at the end of each pulse.
Patent GB-682343-A (GB)
Title: New anthelmintic compositions
IPC: A61K38/46
Filed: 1950-06-29
Abstract: The invention comprises a proteolytic enzyme having a disulphide group in its molecule, together with cysteine or a salt thereof and a solid diluent of the type commonly used in pharmacy in the production of tablets, pills and dragees.  Such compositions have anthelmintic properties.  An example is given of papain with cysteine hydrochloride.ALSO:The invention comprises a proteolytic enzyme having a disulphide group in its molecule, together with cysteine or a salt thereof and a solid diluent of the type commonly used in pharmacy in the production of tablets, pills and dragees.  Such compositions have anthelmintic properties.  An example is given of papain with cysteine hydrochloride.