baber/WOPTO huggingface dataset:
Patent GB-1419893-A (GB)
Title: Apparatus for measuring the time taken for the consumption  of a quantity of liquid by a consuming device such as fuel fed  to an internal combustion engine
IPC: G01F9/00
Filed: 1973-04-19
Abstract: 1419893 Consumption indicator; photoelectric apparatus H LIST 19 April 1973 [19 April 1972] 19042/73 Heading G1A and G1W A device for measuring the fuel consumption of an engine comprises a balance beam 1 pivoted at 2, a fuel container 3, a counterweight 8 for counterbalancing the empty container, a counterweight 10 for counterbalancing the weight of fuel to be consumed in a test, and a pair of photo-electric beam position sensors. Each sensor comprises a phototransistor 24, 25 and an optic fibre strand 17, 18 the light beam of which is arranged to be interrupted by a screen 15, 16 mounted on the beam, the strands 17, 18 having an oval cross section in the region of the screens. At the start of a test, the beam is in the position shown in Fig. 2 against an upper stop 14. As the fuel is consumed, the beam 1 rotates clockwise to deposit counterweight 10 on stops 13. At the same time, screen 15 interrupts the beam of strand 17 and a time recorder is switched on. When a further weight of fuel equivalent to counterweight 10 has been consumed, the beam rotates further so that screen 16 interrupts the beam of strand 18, and the time recorder is switched off. The container 3 may be filled automatically under the control of the beam position sensors, filling commencing when the beam of strand 18 is interrupted by screen 16, and ending when the beam of strand 17 ceases to be interrupted by screen 15. Instead of the screens 15 and 16 being arranged to interrupt the light beams of strands 17, 18 as the beam 1 rotates, they may be arranged to cease to interrupt the light beams. As shown in Fig. 1 the electrical part of the device may be isolated by a screen 28. Each photo-transistor may be mounted in a temperature compensation circuit Fig. 3 (not shown) which includes a pair of further photo-transistors which are blackened and which are thermally coupled to the photo-transistor by a metal block. The output from the photo-transistor may be taken via a Darlington pair of transistors arranged as an emitter follower impedance converter (Fig. 3)
Patent GB-672856-A (GB)
Title: Pneumatic direction indicator for vehicles
IPC: B60Q1/36
Filed: 1950-07-31
Abstract: 672,856. Road-traffic signals on vehicles. JONG, C. H. DE. July 31, 1950. [Aug. 13, 1949] No. 19068/50. Class 118 (ii). A direction indicator of the type operated by suction from the vehicle engine comprises a tubular metal holder 1 fixed in the side wall 4 of a vehicle body and carrying a cylinder 10 of coloured glass or synthetic resin adapted to slide to and fro in the holder 1. An insulating member 11 fitted to the inner end of cylinder 10 has a central opening to fit slidingly but air-tightly over a metal core 5 rigidly fixed in the end of holder 1 by means of an insulating bush 6 and nuts 7. The free end of the core 5 carries a lamp 16 and piston 8 having a flexible sleeve 9 in sealing engagement with the cylinder 10. The core 5 has a central bore which opens into the cylinder 10 at the hole 17 adjacent the piston 8 and is connected externally via a control valve to the engine suction. The cylinder 10 moves outwardly on application of suction via the hollow core 5, and compresses a helical spring 12 which acts between the piston 8 and end member 11. On release of the suction the spring 12 thus returns the cylinder 10. to its unoperated position shown. The spring 12 also serves as one connection to the lamp 16 by means of contact strip 15 in the end member 11 which contacts the holder 1 as soon as the cylinder 10 moves outwardly. The return circuit of the lamp is by way of the core 5 and nuts 7.
Patent GB-760277-A (GB)
Title: Improvements in cigarette or cigar holders
IPC: A24F13/10
Filed: 1954-06-30
Abstract: 760,277. Tobacco pines: cigar and cigarette holders COLIBRI LIGHTERS, Ltd., and LOWENTHAL, H. June 6, 1955 [June 30. 1954], No. 19213/54. Class 130. A member 7, Fig. 2, is slidable within a holder in one direction for stub ejection and oppositely for ejection of a filter element 3 through the mouthpiece end of the holder when the mouthpiece 5 is detached. In use, withdrawal of the mouthpiece 5 from an opaque shield 4 on a body part 1 exposes a transparent casing 2, or a normally hidden transparent part of the casing, for examination of the filter element 3 therein. Telescoping of the parts 1, 5 from the position shown causes movement of the member 7, in the form of a doubleended plunger having an oval shaft non- rotatively sliding in the casing 2, to the left against a spring 13 for stub ejection, whilst withdrawal of the mouthpiece 5 as described above draws the plunger 7 to the right against a spring 12 to the Fig. 4 position where by relative rotation of the parts 1. 5 cigarette-gripping ribs 15 may be brought out of register with normally co-acting plunger grooves so that the spring 12 is maintained compressed and on unscrewing the mouthpiece 5 from the casing 2 this may be depressed against the spring 13 to cause filter element ejection by the plunger. According to the Provisional Specification (a) a displaceable opaque sheath may be mounted over a transparent filter-holder portion of a cigarette holder and (b) in a construction similar to that of Fig. 2 a radial plunger may be depressed against spring action to hold the plunger 7 to the right during filter ejection, and the parts 1, 2 are preferably non-rotatably connected as by being non-circular or by having a pin-andslot connection
Patent GB-1424701-A (GB)
Title: Adaptive equalizer for use in phasemodulation transmission system
IPC: H04L27/01
Filed: 1973-04-24
Abstract: 1424701 Adaptive transversal equalizers INTERNATIONAL BUSINESS MACHINES CORP 24 April 1973 [26 April 1972] 19403/73 Heading H4R An adaptive equalizer for PSK-modulated data includes a transversal filter whose action is modified by an error signal represented by the product of a function of the difference between a reference amplitude and a sampled amplitude of the equalized signal envelope, and a signal representative of a characteristic of the equalized signal. The equalizer (Fig. 1, not shown) has a digital delay line (3) whose multipliers (M) are adjusted by correlation of the sign of the error signal SIGN e(t) and the sign of the received data x(t) available at the output of a register (8) controlled by timing signals at a multiple of the data rate. The summed (4) multiplier outputs are converted to analogue form in delta coder (5) and fed to the error signal generating circuit (Fig. 2). Here the signals are transposed to a higher frequency band in modulator 9 to assist subsequent phase detection, one sideband filtered out 11 and the remaining signal S(t) fed via squarer 12 and zero-crossing detector 13 to a coincidence detector 16 enabled by clock signals derived 15 from the rectified 14 signals S(t). The detector feeds a phase detector 17 and delta decoder 18 to recover the data. The rectified signals S(t) compared with the reference signal A REF when enabled 21 by the output of detector 16. It is stated that non-distorted, received PSK data has an envelope exhibiting minima midway between data intervals and of amplitude equal to the maximum amplitude of the data carrier (F T ). Line distortion causes blurring of these points so envelope sampling is taken at “ period of the data carrier after the first zero cross - ing in the interval. The detector 16 therefore enables the time-out circuit 21 which in turn enables the comparator “ period later. The sign of the error SIGN dR is multiplied in exclusive-OR gate 23 with SIGN S derived by delaying and limiting the equalized data S(t) and utilizing its sign since S(t) is rectified and squared. The product represents SdR/R which approximates to the actual error signal sufficiently to achieve convergence. In a modification, analogue techniques are employed by measuring the envelope error and multiplying by SIGN s(t) in an analogue multiplier replacing gate 23 for correlation directly with the signs of the equalizer taps.
Patent GB-381585-A (GB)
Title: Improvements in or relating to the annealing of metal wire in coiled form
IPC: C22F1/08
Filed: 1931-07-06
Abstract: 381,585. Annealing. SHOTTER, G. F., 14, The Ridgeway, Friern Barnet, Middlesex, and BENNETT, A. H., 16, The Ridgeway, Cuffley, Hertfordshire. July 6, 1931, No. 19410. [Class 72.] In the annealing of coils of wire, the coils 21 are contained in an annular box 43 which surrounds a cylinder 33 of heat-insulating material and rests on a base 35 of the same material. The cylinder 33 surrounds the primary winding 31 of a U-shaped transformer 1 having an armature 3 which is pivoted at 5 to the leg 7 of the transformer and adapted to contact with and be locked to the upper end of the other leg 9. The box 43 is provided with a lid 45 and water seal 46, the lid 45 having a gas inlet 45 and the box 43 an outlet 49. Any non-oxidizing gas such as coal gas may be used. The primary circuit of the transformer may be provided with an automatic control which switches off the current when the desired temperature has been reached or has been maintained for a desired period. After the wire has been annealed, the box 43 is removed and the wire allowed to cool in the inert atmosphere in the box. Specifications 106,332, [Class 39 (iii), Heating by electricity], 167,871, [Class 72, Iron &c.], and 323,835, [Class 39 (iii), Heating by electricity], are referred to.
Patent GB-422347-A (GB)
Title: Improvements in and relating to method of manufacturing metallic material
IPC: C21D1/04
Filed: 1933-07-10
Abstract: Metallic material, especially that for use as magnetic core material and in permanent magnets, is subjected to mechanical working while forming part of a magnetic circuit extending substantially completely through ferromagnetic material.  The work is preferably heated to above the magnetic critical temperature and allowed to cool below that temperature during working.  An alloy having a critical temperature of 1470 DEG  F., for example, may be worked while cooling from 1600 to 1700 DEG  F., or higher, down to 1050 to 1100 DEG  F., or slightly lower.  The process is applicable to silicon steel, to iron alloys containing chromium, examples of alloys being given in which the chromium content varies between 12 and 18 per cent of chromium or to a stainless steel having 18 per cent of chromium and 8 per cent of nickel, the process in such alloys being stated to increase the resistance to corrosion.  The reduction may, if desired, only be of the order of 1 to 3 per cent.  The material may be subjected to a stretching action while under the influence of the magnetic field, to remove irregularities while slightly increasing the length.
Patent GB-1223512-A (GB)
Title: A multi-ratio gearbox incorporating a hydraulic torque convertor
IPC: F16H59/46
Filed: 1969-04-16
Abstract: 1,223,512. Change-speed control. ETABS. HENRI J. DE TABET. 16 April, 1969 [14 May, 1968], No. 19482/69. Heading F2D. [Also in Division G1] Variable-ratio gearing incorporating an hydraulic torque converter C followed by a plurality of mechanical stages T, R1, R2, R3 which provide different ratios is provided with signal lamps R, V, alarm 36, and a locking system 51 which are controlled by three pressure-sensitive switches 35, PA and PB subject to the pressure collected by a Pitot tube 15 which is tangentially disposed with respect to a drum 16 fixed to the output shaft 2 of the converter C to sense its speed. The mechanical stages (operated remotely from an hydraulic distributer (6) comprise an epicyclic gear train T from which one of two velocity ratios can be selected through a clutch T1 or T2 and three further trains R1, R2, R3 which can be used selectively in each state of the train T to provide six different ratios. While running at one of the three ratios for which the clutch T1 is operative, slide valve D directs the Pitot pressure to switch PA and at, say, 1670 r.p.m. the contacts PA1 close to energize a relay RA; but while running with the clutch T1 inoperative for the other three ratios, the valve D directs the Pitot pressure to the switch PB and at, say, 1510 r.p.m. the contacts PB1 close to energize the relay RB. Energization of the relay RB (or RA) causes the armatures of the pair of electromagnets EB1, EB2 (or EA1, EA2) carrying a bar 61 (or 62) to move to locking position e.g. inhibiting movement of the gear shift lever 52 from position 4 to 3 but allowing movement to position 5.
Patent GB-1378704-A (GB)
Title: Hydration of acetylenic compounds
IPC: C07C5/22
Filed: 1972-04-26
Abstract: 1378704 Removing acetylenes from a C 4  stream; isomerizing cis butene-2 ENTREPRISE DE RECHERCHES ET D'ACTIVITES PETROLIERES ELF 26 April 1972 [27 April 1971] 19484/72 Heading C5E A butadiene cut rich in butenes is treated with steam in the vapour phase at 180-300‹ C. in the presence of a solid catalyst formed by mixing orthophosphoric acid with SiO 2  powder and heat-drying the mixture, the CaO content of the catalyst being 1-50 wt. per cent, whereby acetylenic and allenic compounds in the feedstock are hydrated and cis butene-2 is isomerized  into trans butene-2 and butene-1. The volume  ratio of steam to allenic and acetylenic com-  pounds is at least 6 : 1. The catalyst may be regenerated after each of up to 3 treatments by heating at 480-500‹ C. while passing  therethrough a stream of air containing 3-4 vol. per cent steam. For further use the catalyst may be reimpregnated with orthophosphoric acid.
Patent GB-362332-A (GB)
Title: Improved tooth brush
IPC: A46B9/04
Filed: 1931-08-15
Abstract: 362,332. Toothbrushes. MEAD, C. J., 43, Torrington Square, London. Aug. 15, 1931, No. 19495. [Class 19.] A toothbrush, Fig. 1, comprises a substantially U-shaped stock B outwardly splayed and converging, with alternate rows of long and short bristles F, E, projecting inwards on each side so as to form an open V, the long bristles F on one side being opposite the short ones E on the other. Bristles C also project inwards from the base to form a stop member and prevent the brush contacting with the gums.
Patent GB-578021-A (GB)
Title: Improvements in and relating to scramble or boarding nets adapted for use in boarding and disembarking from vessels
IPC: B63B17/00
Filed: 1943-11-22
Abstract: 578,021. Rope ladders. BRITISH ROPES. Ltd., and RICHARDSON, F. Nov. 22, 1943, No. 19506. [Class 20 (ii)] A boarding or disembarkation ladder for a vessel comprises a rope net, preferably of square mesh, with upper and lower booms and also with further intermediate booms, ropes passing freely through holes or eyes in the booms and being knotted below the lowermost boom to facilitate the drawing up of the ladder and its extension. The booms 1, 2 have each three blocks 4 to hold off the ladder from the ship's side. Gathering ropes 5 knotted &c. below the bottom boom 3 pass freely through the other booms and terminate in loops 6 at their upper ends. The warp and weft ropes of the net pass alternately through each other and are secured to each other by a hitch at each point of intersection. The warp ropes 7 may be continuous, passing from the upper boom, through the remaining booms, thence turning under the bottom boom and returning to the upper boom &c. Loops 12 may be left under the bottom boom to serve as hand grips.
Patent GB-787601-A (GB)
Title: Shaped articles formed from acrylonitrile polymers
IPC: C08L1/26
Filed: 1955-07-06
Abstract: Fibres, films and other shaped articles are obtained by extruding a solution of a polymer or copolymer of acrylonitrile containing also a cyanoethyl ether of cellulose into a coagulating medium, employing the wet- or dry-spinning technique.  Inclusion of the cellulose ether increases the water absorption and also the decomposition temperature of the polyacrylonitrile article. The solution employing, for example, dimethyl formamide, dimethyl acetamide, tetrahydropyran, tetrahydrofuran, morpholine, ethylene carbonate, an organophosphonate or a sulphone, as the solvent, may be extruded at 25-150 DEG  C. into hot air or other inert gas or into water, aqueous ammonium chloride or sodium thiocyanate, triethanolamine, ethylene glycol, glycerine, dilute sulphuric acid or an aqueous solution of the spinning solvent, at 25-150 DEG  C.  The articles may be washed and stretched in secondary baths or in steam and heat-treated at 100-180 DEG  C. in the relaxed condition.  Copolymers of acrylonitrile with vinyl acetate, styrene, vinyl chloride, the vinyl pyridines, isobutyne, dimethyl fumarate, methyl methacrylate, methacrylonitrile and acrylic acid and its esters may be employed.  The cyanoethyl ether of cellulose is preferably prepared from viscose rayon by soaking the rayon in aqueous caustic soda, refluxing the alkali cellulose so obtained with acrylonitrile, neutralizing with acetic acid, cooling and finally adding methanol to precipitate the ether.
Patent GB-601528-A (GB)
Title: Pipe bowl cleaner
IPC: A24F9/10
Filed: 1945-07-31
Abstract: 601,528. Pipe-bowl cleaners. PALUDAN, D. H. July 31, 1945, No. 19561. Convention date, July 13, 1943. [Class 130] A pipe-bowl cleaner has cutters 2, 4, 6 and 8 which extend mainly in the axial direction of the cleaner and are pivoted at one end by rivets 9 and 10 to supporting strips 1, 3, 5 and 7 which are fixed rigidly to a member 11 containing slots 12. Projections 13 on the cutters pass through the member 11 into guides 14 cut in the guiding member 15 which may be rotated to swing the cutters inwards or outwards for adjustment. Locking is effected by the screw 17 and the nut 18 which clamp the members 11 and 15 together.
Patent GB-1518366-A (GB)
Title: Rf amplifier
IPC: H03G5/02
Filed: 1976-05-12
Abstract: 1518366 F.E.T. amplifiers MOTOROLA Inc 12 May 1976 [6 June 1975] 19585/76 Heading H3T A RF amplifier has a step-up transformer 103 connected via a F.E.T. attenuator, having series and shunt elements 23-25, to the gate of a F.E.T. amplifier 67, the drain output of which is connected to a step-down output transformer 14. The F.E.T. 67 operates in the depletion mode and AGC signals are applied to inputs 39, 41 of the attenuator 12. The output of the RF amplifier may be connected to the input of a mixer stage. As the input signal level increases the series FET 23 increases in impedance and the shunt FET's 24 and 25 decrease in impedance so as to attenuate large undesired signals, intermodulation and cross-modulation products which are eliminated. The input and output transformers 11 and 14 may have a series of flat winding strips embedded in synthetic insulating material (Figure 2, not shown). The attenuator can in addition be manually controlled.
Patent GB-404979-A (GB)
Title: Improvements in domestic coal scuttles
IPC: F24B15/00
Filed: 1932-07-12
Abstract: 404,979. Coal boxes. BAXTER, A. E., Wellfield, Lees Lane, Little Neston, Wirral, Cheshire. July 12, 1932, No. 19649. [Class 52 (i).] A coal box fitted with an internal grating B has an inverted scoop-like shield C projecting inwardly over the opening in the lower compartment. The grating may be mounted on rotatable eccentrics F so that it may be shaken.
Patent GB-1195173-A (GB)
Title: Improvements in and relating to Gravure Resist Film.
Inventor: YACKEL EDWARD CARL
IPC: G03F7/06
Filed: 1968-04-25
Abstract: 1,195,173. Photographic stripping films. EASTMAN KODAK CO. April 25, 1968 [April 26, 19671, No. 19660/68. Heading G2C. A photographic stripping film comprises a temporary film support coated with a stripping layer of a latex of a water-insoluble fusible polymer and gelatine glue of viscosity less than 5 c.p.s. and an unhardened gelatine silver halide emulsion layer. The film may also contain a gelatine anti-halation layer between the stripping layer and the emulsion. Specified polymeric latices are styrene/butadiene copolymer, vinylidene chloride/acrylonitrile copolymer, ethyl acrylate/ acrylonitrile copolymer, polyvinyl chloride, polyacrylonitrile and methyl methacrylate/vinyl chloride vinyl isobutyl ether copolymer. The stripping layer may also contain gelatine of viscosity of greater than 9 c.p.s. The stripping film may be used as a gravure resist film as set out in Specification 943, 874, the stripping film and temporary support being removed by water after imagewise exposure and tanning development of the silver halide emulsion.
Patent GB-425738-A (GB)
Title: Improvements in electrolytic condensers
IPC: H01G9/08
Filed: 1934-07-04
Abstract: 425,738. Electrolytic condensers. ELEKTRIZITATS - AKT. - GES. HYDRAWERK, 32, Drontheimerstrasse, Berlin. July 4, 1934, No. 19737. Convention date, July 5, 1933. [Class 37] To obtain large capacity, without the use of wide foils in an electrolytic condenser a number of cylindrical wind ings 10, 11 are electrically connected and disposed axially one above the other in a single casing 9. The windings may be connected in parallel or, as shown in the Figure, in opposition, in which case the electrolytes are separated by a further insulating casing 18. In another modification the windings are similarly insulated and are connected in series.
Patent GB-135909-A (GB)
Title: An Improved Exhaust Valve for Internal Combustion Engines and Means of Operating same.
Inventor: THOMAS WILFRED LLOYD
IPC: F01L7/06
Filed: 1918-11-29
Abstract: 135,909. Thomas, W. L. Nov. 29, 1918. Valves; valve-gear; regulating. - In a two. stroke-cycle engine, exhaust ports h in the cylinder head are controlled by an oscillating disk valve j worked from a grooved cam r by a lever o and links s, m. The connexion between the links s and m is adjustable to vary the effective length of the arm m and the extent of opening of the ports h. The charge is drawn into the crank chamber and transferred to the working cylinder through piston-controlled ports f, d.
Patent GB-600092-A (GB)
Title: Improvements in or relating to rocker arm assemblies
IPC: F16H51/00
Filed: 1945-08-01
Abstract: 600,092. Making levers. WINTER, J. R. Aug. 1, 1945, Nos. 19760, 19761 and 19762. Convention dates, July 19, 1944, Oct. 27, 1944 and March 10, 1945. [Classes 83 (ii) and 83 (iv)] [Also in Group XXVII] Flanging ; jointing by stamping.-A rocker arm assembly comprises an arm having a tubular hub element extending through an opening therein which is rigidly connected to the arm by annular, bulbed heads formed on the element and engaging opposite sides of the arm. In Fig. 1 a laminated rocker comprises a sheet-metal stamping bent on itself and welded to form cylindrical ends 11, 16 for a pin 22 and threaded stud 25 engaging the operating cam and valve stem. A tubular element 28 is locked in the opening 27 by outwardly bulbed beads 30 formed by compressing the element 28 axially in dies. An oil groove 50, formed by the inner edges of the laminations, results from distortion during the stamping operation.
Patent GB-422481-A (GB)
Title: Improvements in and relating to television and the like transmission systems
IPC: H04N5/073
Filed: 1933-07-12
Abstract: 422,481. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd., Blyth Road, Hayes, Middlesex, CORK, E. C., 53, Stoneleigh Drive, Worcester Park, and MANIFOLD, M. BOWMAN-, Heathcot, Worplesdon Station, both in Surrey. July 12, 1933, No. 19763. [Class 40 (iii)] A synchronizing signal of sinusoidal form modulates a carrier oscillation 22 which is fed, together with the picture signals, to a single transmission channel 26. The carrier oscillation is above the highest frequency in the picture signals, together with which it modulates a carrier 24. An oscillation at line frequency is produced by light from scanning mirrors 8 passing through a sinusoidal opening 13 to a cell 14, and an oscillation at the frame frequency is produced by a generator 19 on the shaft driving a kinematograph film 1. At the receiver the carrier wave of the synchronizing signals is selected by a filter, and a detector obtains the two synchronizing signals which are separated by a filter to control respective generators of saw-tooth oscillations, Fig. 2 (not shown).