baber/WOPTO huggingface dataset:
Patent GB-794926-A (GB)
Title: Improvements in and relating to aircraft braking mechanism
Inventor: SAVERY RALPH
IPC: B64C25/42
Filed: 1955-10-20
Abstract: 794,926. Aircraft skid brakes. DOWTY EQUIPMENT, Ltd. Oct. 19, 1956 [Oct. 20, 1955], No. 30033/55. Class 103 (1). In a skid brake fitted to an aircraft undercarriage system, the friction pad 15 which is adapted to engage the ground is provided with holes 18 through which liquid coolant is supplied from an accumulator cylinder 22 when pneumatically-actuated separator piston 24 is moved to the right; the flow of liquid coolant from cylinder 22 being controlled by a solenoidoperated valve 26 which allows a predetermined maximum rate of discharge so that the latent heat of vaporization is related to the heat generated by friction. The friction pad 15 is attached to shoe 10 by bolts 17 extending into backing plate 16 to which the friction pad 15 is bonded. Transverse slots 29 are provided in the friction pad to reduce the tendency of disintegrated material to enter the liquid feed holes and cause clogging.
Patent GB-783098-A (GB)
Title: Improvements in electric surge and lightning arresters
Inventor: DANNENBERG KURT
IPC: H01T1/16
Filed: 1954-10-19
Abstract: 783,098. Faults testing. E.M.P. ELECTRIC, Ltd. Oct. 13,1955 [Oct. 19, 1964], No. 30040/54. Class 37. [Also in Group XXXV] An electric surge or lightning arrester including a non-linear resistor element in series with a sparkgap wherein the ratio between the height and diameter of the resistor element lies within certain limits set out in the Specification, has the material of the non-linear resistor chosen for a given application on the basis of its response to a test current waveform, which waveform comprises a very steep rise and an exponential fall. Thus the behaviour of the resistor element in regard to its thermal qualities and follow-through current can be predetermined and therefore the service for which it is suitable foreshadowed. A series of six waveforms is shown and on the basis of the response of a resistor element to one or other of these waveforms it can be determined whether the element is suitable for use as a distribution, line or station type arrester.
Patent GB-459809-A (GB)
Title: Improvements in the manufacture of valves for internal combustion engines
IPC: F01L3/02
Filed: 1935-10-31
Abstract: 459,809. Uniting by fusion; making cased valves. COVERLEY, R. H., Glenroy, Clarence Road, Derby. Oct. 31, 1935, No. 30129. [Classes 83 (ii) and 83 (iv)] [See also Group II] In coating with an alloy the seating or other parts of the head of poppet valves, an apparatus is employed, which provides for a slow rotation of the valve G, Fig. 1, while metal from a rod J<1> is fused on to the surface by a blow-pipe J, and heat is conducted away rapidly by members G<1>, E of copper or the like. Rotation of the valve is obtained from an electric motor through a belt C<2> gear box C3, worm C, worm wheel C<1> clutch D, D<2> and shaft D3 on which is mounted the copper member E. In a recess of the member is mounted the second copper member G<1> having a projecting part E<1> for interfitting and having a shaped projection G<2> corresponding to the recess in the valve head. A bracket H<2> supports a screw H<1> engaging a recess in a centring piece H temporarily fixed on the valve stem. Should the valve head be flat a temporary projection is provided on the valve head for engaging a recess in the copper block in contact therewith. When coating the top surface of the valve head a holder L, Fig. 2, is employed.
Patent GB-1270760-A (GB)
Title: Improvements relating to quick setting portland cement compositions
IPC: C04B28/04
Filed: 1970-06-22
Abstract: 1,270,760. Cement compositions. ALPHA PORTLAND CEMENT CO. 22 June, 1970 [18 July, 1969], No. 30167/70. Heading C1A. A cement composition of at least 4000 Braine and containing 1-2À2% S as SO 3  also contains 0À1-0À4% of an additive of an ethanolamine and at least one of an acetate, HAc<SP>-</SP> and Ac 2 O. The clinker is ground with the additive.
Patent GB-1196804-A (GB)
Title: Method of Continuously Casting Metals or Alloys.
IPC: B22D11/06
Filed: 1967-06-30
Abstract: 1,196,804. Continuous casting. IIT RESEARCH INSTITUTE. 30 June, 1967 [16 Sept., 1966], No. 30178/67. Heading B3F. Metal is cast between a pair of rollers 11, 12 and a pair of moving walls 21, 22 which engage with the rollers to prevent lateral spread of the metal or alloy. The rollers are grooved at each end to engage the walls 21, 22 which are either in the form of bars or of belts of steel strip. The rollers and the belts are watercooled and at least the rollers are driven. Guide belts 24, 25 may also be provided to feed the molten metal to the rollers.
Patent GB-1451263-A (GB)
Title: Digital modulation generator
IPC: H01Q3/38
Filed: 1974-07-08
Abstract: 1451263 Radio navigation EMERSON ELECTRIC CO 8 July 1974 [5 Oct 1973] 30180/74 Heading H4D A radio navigation beacon, and in particular, a TACAN beacon, is digitally implemented, whereby the, e.g. 36 antennae of the beacon, are fed by respective channels each comprising a digital storage register 20, a digital to analogue convertor 40 and a modulator 42, the registers 20a-20n being supplied by a common digital read only memory 25 containing a series of binary coded incremental modulation signals, the memory being addressed in the correct sequence (16), in synchronism with the directing of the resultant incremental modulation signals to the correct storage register, such that each register contains the full modulation data, correct in phase for its respective antenna. A clock pulse generator 11 provides pulses at a frequency of 54 KHz to a sector address register 15 and a memory address sequencer 16. The latter produces in binary form on leads 22, counts representing 0, 10, 20 .... 350 degrees for the first 36 clock pulses, which counts cause memory 25 to produce the corresponding 1 degree increments in the modulation waveform, Fig. 5. Since the 0 degree increment should be fed to the 1st antenna channel, the 10 degree increment to the 2nd antenna channel &c., the 36 clock pulses cause sector address register 15 to sequentially enable the storage registers 20a.... 20n, the last clock pulse also causing the advancement by 1 degree of the read-out sequence from 16. The nezt 36 clockpulses from generator 11 thus cause sequencer 16 to produce counts representing 1, 11, 21, ....35 degrees with consequential action of the mercury 25 and distribution of the read-outs thereof to the storage register. Thus after one complete cycle of 12960 clock pulses all 36 incremental modulation signals, correctly relatively phase-staggered by 10 degrees round the ring of antennae, have been produced. The completion of the cycle Fig. 3, as signalled by sequencer 16 controls the generation of the north reference, auxiliary reference and identity tone signals from means 17, 18.
Patent GB-738941-A (GB)
Title: Improvements in feelers for scanning or treating work pieces or materials by ultrasonic vibrations
IPC: G10K11/00
Filed: 1953-11-02
Abstract: 738,941. Ultrasonic couplings. REALISATIONS ULTRASONIQUES. Nov. 2, 1953 [Nov. 7, 1952], No. 30189/53. Class 40 (4). An ultrasonic probe head comprises a transducing element 1, e.g. a piezo-electric quartz crystal, and a protecting panel 4 of metal or the like between the transducing element 1 and the workpiece, damping elements 2 and 3 being provided on both sides of the transducing element 1. The inner damping element 2 consists of a layer of a plastic material having an acoustic impedance substantially equal to that of the transducing element 1. The outer damping element 3 is adhesive and may comprise several layers of plastic materials of progressively increasing acoustic impedances, and a further set of layers 5 may be carried on the outer face of the protecting panel 4, the outermost layer having a number of hollows 6 which may. retain a film of oil in order to improve contact between the probe head and the workpiece. The object of the invention is to eliminate disturbances caused by reflection of the ultrasonic vibrations at the various interfaces.
Patent GB-483696-A (GB)
Title: Improvements relating to coin-freed vending machines
IPC: G07F9/10
Filed: 1937-11-04
Abstract: 483,696. Coin-freed article-delivery apparatus. FITZPATRICK, H. J. (Maatschappij van Berkel's Patent N. V.) Nov. 4, 1937, No. 30198. [Class 27] In a coin-freed article-delivery machine in which the articles are stored in piles in magazines, the magazine 11, for the articles A is covered in front by a plate 12 which is pivotally mounted at 17 on the door 14 of the machine, the door being pivoted at 16 to the machine frame. The article retaining plate comprises a glass plate 12 mounted in a frame 13 and the door consists of a glass plate 14 carried in a frame 15. The pivots 17, 16 are arranged in juxtaposition and may be horizontal or vertical The plate 12 is normally held rigid with the door by a spring catch 18 which is released when access tc the space between the door and plate is desired for cleaning or other purposes. The plate 12 may be arranged to cover the fronts of several magazines.
Patent GB-1319684-A (GB)
Title: Hoists
IPC: B66C13/26
Filed: 1970-06-22
Abstract: 1319684 Automatic speed control RICHIER 22 June 1970 [ 20 June 1969] 30282/70 Heading G3R A hoist is driven by an asynchronous motor 2 which is coupled to an eddy-current brake 3. A tachometer 6 responds to the speed of the motor and sends a signal to comparator 7 which also receives a reference signal from potentiometer 8. The error signal from the comparator is applied to a thyristor circuit 9 for controlling the motor voltage and to a rectifier circuit 10 which determines the voltage applied to the brake, and thus the braking torque. The torque changes rapidly with speed at low speeds to ensure stable operation, particularly with small loads. In this manner, the load is raised and lowered at set speeds. A current detector 15 is connected to a voltage regulator 16 which prevents sudden changes in the motor voltage when the potentiometer 8 is adjusted abruptly. In a modification, the brake is formed by an auxiliary stator winding arranged concentrically with the main stator winding of the motor. For lowering light loads, the auxiliary winding may have a smaller number of poles than the main winding, which provides the braking component.
Patent GB-305717-A (GB)
Title: Improvements in method of purifying sewage and analogous liquids
IPC: C02F1/52
Filed: 1927-11-11
Abstract: 305,717. Dallyn, F. A. Nov. 11, 1927. Treating-materials; aerating. - Sewage and analogous liquids are purified by incorporating a floc which will absorb molecular oxygen supplied and release atomic oxygen to effect the adsorption of foreign substances, the coagulation of certain compounds, and the oxidation and dispersion of the organic matter. The floc is composed of iron and aluminium compounds; the hydrates of iron and aluminium occurring in many waters may be utilized. The mass is thoroughly agitated by mechanical means or compressed air to induce the maximum absorption of air. The iron compound liberates the atomic oxygen, and the aluminium compound acts concurrently to effect the adsorption, coagulation and precipitation of unoxidized substances. More oxygen and a sterilizing agent such as chlorine may also be introduced. The residue sludge may be aerated and returned to the first treatment tank. Specifications 13702/09, 20556/11 and 167,454 are referred to.
Patent GB-737404-A (GB)
Title: Liquid fuel injection pumps
Inventor: EVANS FRASER MACKIE
IPC: F02M41/12
Filed: 1952-11-29
Abstract: 737,404. Fuel-injection pumps. C.A.V., Ltd. Nov. 6, 1953 [Nov. 29, 1952], No. 30309/52. Drawings to Specification. Class 102 (1). The subject-matter of this Specification is substantially the same as that described in Specification 737,403 but the claims differ. Specification 697,542 is referred to.
Patent GB-538865-A (GB)
Title: Improvements relating to knitted fabrics and manufactured knitted articles
IPC: D04B1/08
Filed: 1939-11-18
Abstract: 538,865. Treating knitted goods to reduce laddering. BREW, H. E. Nov. 18, 1939, Nos. 30312/39 and 7497/40. Drawings to Specification. [Class 15 (ii)] [Also in Groups IX and VIII] Knitted goods having anti-laddering properties a.re formed from a composite yarn which is comprised of at least one inert foundation filament and at least one potentially adhesive binding filament twisted together with a low degree of twist, the goods being subjected to treatment which will render the binding filament or filaments tacky or adhesive and will cause mutually-contacting adhesive parts to unite while, in general, not causing the adhesion of an adhesive part to the inert filament; the degree of twist in the composite varn is such that there are sufficient contacts of adhesive parts with each other to prevent laddering while allowing sufficient relative freedom between the component filaments of the yarn to maintain the desired elasticity. The binding filaments may be potentially adhesive throughout their whole length or at some parts only, and may be rendered potentially adhesive by a coating, e.g. of a natural or synthetic resin ; or a filament potentially adhesive throughout its length may have a resin applied at intervals. The union between the potentially adhesive parts of the binding filament may be effected by heat and pressure or by the application of a gelatinizing agent, the action of the agent being controlled by a diluent, which may be appreciably more volatile than the agent. The binding filament may be formed from cellulose esters, mixed esters or ethers, from polyamide' and vinyl resins or from natural or synthetic rubbers, or these potentially adhesive substances may be applied as a sheath, coating or impregnation to a filament of inert material, e.g. viscose. Examples of gelatinizing agents and diluents and of knitted goods and their treatment are given. Thus, a fabric made from a foundation filament of viscose and a binding filament of cellulose acetate, each having 2 turns per inch and twisted together in the opposite direction with 4 turns per inch, is immersed for 30 seconds in a bath of 4-6 parts by volume of dimethyl phthalate and 96-94 parts by'volume of benzene at a normal temperature and pressure ; the fabric is then dried by evaporating so that the air-dry fabric contains about 15 per cent. by weight of the dimethyl phthalate, is subjected to a hot pressing treatment for 0.25 minute or thereabouts at 135‹ C. and to an after-treatment of 10 minutes duration in a 0.5-1 per cent. soap solution at 70‹-80‹ C., and is finally dried. Specification 501,436 is referred to.
Patent GB-1397650-A (GB)
Title: Electrographic recording
IPC: G03G15/05
Filed: 1973-06-27
Abstract: 1397650 Imagewise charging AGFAGEVAERT AG 27 June 1973 [28 June 1972] 30532/73 Heading G2H [Also in Division B6] An imagewise charge is applied through a slit in a stationary electrode assembly to a moving web 1 supported by a wedge-shaped stationary counterelectrode 3 and wetted with conductive liquid at the line of contact with electrode 3. The electrode assembly comprises a continuous discharge electrode 10 and a diaphragm comprising four flat electrodes 11-14, at least one of which is subdivided into a plurality of conductive strips along which a signal voltage is conducted, Fig. 2 (not shown). The liquid may be supplied from a channel 5 within electrode 3 using a reservoir closed by an adjustable flexible membrane, Fig. 1 (not shown), or a wick, Fig. 3 (not shown), or using a moistened pad situated between the web and electrode 3, Fig. 4 (not shown). The liquid may be water, benzyl alcohol, diethylene glycol monoethyl ether, ethylene glycol, methyl alcohol, ethyl alcohol, ethylene chloride or ethyl acetate. The web may be of cellulose triacetate, cellulose acetobutyrate, polyethylene, polystyrene, polyvinyl chloride, polyisobutylene, polytetrafluoroalkylene or a polycarbonate or polyterephthalate. It may have a thickness of 10-60 Ám.
Patent GB-292015-A (GB)
Title: A new or improved apparatus for the electrolytic production of metallic sheets and similar articles
IPC: C25D1/04
Filed: 1927-11-14
Abstract: 292,015. Sch³tte, J. C. F. A. Nov. 14, 1927. Electrolytes, agitating; electrodes; cells.- Apparatus for the deposition of metal sheets comprises a cell 1 having a lead lining 2 serving as cathode in which is mounted an annular perforated vessel containing scrap, ore, or other anode material 31. Electrolyte is driven through the anode material towards the cathode by a propeller 5 secured to a shaft 6 on which is keyed a bevel pinion 22 driven by a bevel wheel 24. The inner wall 8 of the anode container is secured to a disc 60 provided with a sleeve 61 supported by pins 36 on a hollow shaft 35 driven by bevel wheels 37, 38. The outer wall 9 is secured to a disc 33 provided with a sleeve 32 supported by pins 34 on a hollow shaft 13' driven by bevel wheels 14, 16. Gear-shifting means are provided by which either of the walls may be rotated while the other is stationary, or both may be rotated in the same or in opposite directions. The two walls are electrically connected by a sliding spring 35<a>. A lead plate 4a, not electrically connected is mounted in the bottom of the cell to provide beneath it a space in which sludge may collect. In a modification, the anode container merely rotates as a whole.
Patent GB-174457-A (GB)
Title: Improvements in brakes for road vehicles and the like
IPC: F16D51/04
Filed: 1920-10-30
Abstract: 174,457. Scott, A. A. Oct. 30, 1920. Band.-The band is mounted upon a fixed rim having flanges for retaining the band and is expanded by a sliding wedge also formed with flanges for retaining it in position with respect to inclined surfaces on the ends of the band. The band 3, which may be of spring steel with a braking-surface of fibre or leather, is mounted between flanges c, d on a fixed rim 10 which it grips in the disengaged position and is expanded by a wedge 6 engaging the inclined surfaces of pieces 5, 5<a> on the ends of the band. Figs. 1 and 2 show the wedge arranged to be moved radially with respect to the band 3 and drum 2 by means of a direct pull connection attached at 7. As shown in Fig. 8, the wedge is moved axially by means of a lever 13. An arrangement in which the levers 13 of a pair of brakes are connected for simultaneous actuation to a single pull rod is shown. The wedge 6 is guided on the pieces 5, 5<a> by flanges h. The band is held against rotation by a pin 9 thereon passing through a slot x in the rim 10.
Patent GB-849445-A (GB)
Title: Improvements relating to moderator structures for nuclear reactors
Inventor: ACFORD RONALD FREDERICK CHARLE
IPC: G21C5/08
Filed: 1956-10-09
Abstract: 849,445. Nuclear reactors. ENGLISH ELECTRIC CO. Ltd. Oct. 4, 1957 [Oct. 9, 1956], No. 30810/56. Drawings to Specification. Class 39(4). In a nuclear reactor the moderator consists of vertical columns of carbon blocks mounted to permit Wigner growth and to reduce neutron streaming. In each column, separation between blocks is effected by a pair of carbon tubes between each two blocks. The directions of minimum Wigner growth of the blocks and tubes are all mutually at right angles, those of the blocks being parallel to the column axis, e.g. vertical and those of the tubes being horizontal and perpendicular to each other. Fuel channels extend axially through the columns and the blocks and tiles have mutually engaging keys and keyways which are off-set so as not to intersect the fuel channels. The tiles extend beyond the vertical faces of the blocks and engage the edges of tiles in adjacent columns to space the columns apart. The keys and keyways are cut so as to give adjacent blocks in a column a relative angular displacement so that no direct passage exists between columns horizontally and neutron streaming is reduced.
Patent GB-1481377-A (GB)
Title: Internal shoe drum brake
IPC: F16D65/54
Filed: 1975-07-23
Abstract: 1481377 Adjusting internal shoe-drum brakes for wear D BA SA 23 July 1975 [17 Sept 1974] 30827/75 Heading F2E In a wear adjusting arrangement of the kind in which an adjusting lever 26 pivoted at 28 near the actuated end of a brake shoe has a toothed sector 30 normally engaged by a pawl 32 pivoted at 34 adjacent the other end of the same shoe, a locking member 46 having a surface of friction material prevents rotation of the pawl when that surface is in contact with the drum. Over-adjustment is thereby prevented. As shown (Fig. 2) the locking member is formed entirely of friction material, is forcefitted in an aperture 44 in the pawl, is retained axially by a plate 48 and is movable in a slot 50 in the brake shoe. A strut 40 (Fig. 1) extends between lever 26 and the other shoe 14, the lever and shoe being urged into engagement with the strut by spring 42. On operation of actuator 20, the tendency of lever 26 to rotate is prevented by the locked pawl, and the shoe travel to take up wear is accommodated by spring 42. On release of braking pressure, the spring causes the shoes to retract and lever 26 to rotate counter-clockwise, the consequent clockwise rotation of pawl 32 causing member 46 to remain in contact with the drum. If such rotation is sufficient the pawl and lever move relatively by one or more teeth. The strut 40 may extend between the adjusting lever and backing plate in which case each shoe may be provided with such a lever, an individual actuator and an individual fulcrum. The actuator may be hydraulic or mechanical.
Patent GB-451265-A (GB)
Title: Improvements in lamps or valves with a gaseous atmosphere and applications thereof
IPC: H04B10/00
Filed: 1934-10-27
Abstract: 451,265. Railway signals. VIEL, E., 11, Boulevard de Chezy, Rennes, France. Oct. 27, 1934, Nos. 30870, 30871, 30872, and 30873. Void [Abridged as open to inspection under Sect. 91 of the Acts, April 29, 1935]. Drawings to Specification. [Class 105] [See also Groups XL and XXXVIII] An electric gas-discharge tube has its control electrode connected to a conductor rail and is controlled by the locomotive of a train as by induction or high-frequency currents to control relays and so the signals, Fig. 12 (not shown). Details of the discharge tube are specified.
Patent GB-856773-A (GB)
Title: Improvements in and relating to gaseous discharge lamp circuits
Inventor: CHAPMAN DONALD FREDERICK
IPC: H05B41/232
Filed: 1958-09-26
Abstract: 856,773. Supply systems for space-discharge apparatus. THORN ELECTRICAL INDUSTRIES Ltd. Sept. 10, 1959 [Sept. 26, 1958], No. 30874/58. Class 38 (4). A gaseous discharge lamp circuit arrangement having improved starting facilities includes A.C. mains supply terminals N, L across which are connected two circuits: a first circuit comprising a transformer primary 2-3 and a choke G connected in series; a second circuit comprising a first filament A of lamp F, a first transformer secondary 1-2 and a capacitor C. The circuit arrangement is completed by a third circuit comprising the second transformer secondary 3-4 connected in series with the second filament B of lamp F. On switching terminals N, L into the A.C. supply, a momentary surge of current occurs through the second circuit whilst capacitor C is charging up, resulting in the application across the lamp of a high-voltage ionizing pulse for assisting starting. Another embodiment includes a tapped choke G and a discharge resistor connected across capacitor C. Further embodiments differ in the connectionpoint of the choke to the transformer, and in the connections between the capacitor C, secondary 1-2 and filament A, but in all the capacitor, secondary and filament form a series circuit between the terminals L, N. The circuit may be adapted to feed a plurality of lamps in series, by providing the transformer with further isolated secondary windings for supplying the intermediate lamp filaments.