baber/WOPTO huggingface dataset:
Patent GB-652047-A (GB)
Title: Improvements in or relating to sound recording apparatus for motion picture films
IPC: G11B7/00
Filed: 1948-02-12
Abstract: 652,047. Optical sound recording apparatus. GES. ZUR FORDERUNG DER FORSCHUNG AN DER EIDG. TECHN. HOCHSCHULE. Feb. 12, 1948, No. 4154. Convention date, Feb. 18, 1947. [Class 40 (ii)] In an electrodynamic bifilar oscillograph for optical sound recording the bifilar loop, which carries a recording mirror, oscillates in correspondence with the sound oscillations about a mean position determined by a member mounted on the bifilar loop and rotated electrodynamically. In Fig. 1 a bifilar element 5 tensioned by a spring 10 and located in the magnetic field between members 3 of magnetic material adjacent magnet poles 9, has clamped to it a relatively heavy copper frame 2 carrying a winding 4. The frame is insulated from the bifilar element at 8 and two sides of the frame are respectively located in the gaps between poles 9 and members 3. Electrical signals corresponding to the sound to be recorded on a motion picture film are applied to the bifilar element, the portion of which within frame 2 has a high natural frequency of oscillation and deflects a mirror 1, thereby moving (Fig. 2, not shown) the image of a triangular aperture relative to a slit to effect variable width recording. A signal corresponding to the envelope of the audio signals is applied to winding 4 which, owing to the inertia, eddy-current and/or liquid damping of frame 2, has a low natural frequency of oscillation and produces an additional deflection of mirror 1 to minimize the width of the recording to reduce ground noise. In the circuit, Fig. 3, for energizing coil 4, which is connected to terminals 26, the audio signals are applied at terminals 31 and through a transformer 17 to a full-wave rectifier valve 18 producing across a condenser-resistance network 19, 20 a D.C. voltage, varying with the envelope of the audio signals, having a build-up time shorter than its decay time, which is limited by a biassed diode 22 and amplified by a pentode 24 before application to coil 4. To eliminate the effect on frame 2 of low frequencies applied to the bifilar element, a component of the audio signals is derived through a potentiometer 29 and applied to coil 4. The addition of first and second derivative components to the current in coil 4 is referred to.
Patent GB-935681-A (GB)
Title: The production of aromatic and olefinic hydrocarbons
IPC: C10G69/06
Filed: 1962-02-02
Abstract: Olefins having 2-4 carbon atoms and aromatic hydrocarbons are obtained by thermal or catalytic cracking of a liquid hydrocarbon cracking stock, recovering C2-C4 olefins, hydrogenating C5-200 DEG C. product to saturate olefins without affecting aromatics, separating the aromatics and recycling the non-aromatics to the cracking process.  The cracking stock may be a crude petroleum or petroleum distillate or a tar or oil from degasification or gasification of solid fuels, particularly a light gasoline.  After thermal cracking the gaseous products are separated and the 60 DEG -200 DEG C. liquid product selectively hydrogenated.  If acetylenes or dienes are present these are preferably hydrogenated first to olefins at low temperature using a platinum metal catalyst to prevent polymerization in the subsequent hydrogenation over a cobalt-molybdenum catalyst. The aromatics may be separated by distillation or solvent extraction preferably after removing material boiling below 77 DEG C. and above 150 DEG C. which are recycled with the non-aromatics.
Patent GB-1386713-A (GB)
Title: Antiskid braking system
IPC: B60T8/46
Filed: 1973-01-26
Abstract: 1386713 Antiskid braking systems FIAT SpA 26 Jan 1973 [10 Feb 1972] 4214/73 Heading F2F An antiskid braking system for a vehicle having a source of hydraulic pressure such as an engine driven pump 10 drawing fluid from a reservoir 12 and passing it via a modulator 16 and valve 26 to a wheel cylinder 30 the valve 26 being controlled by a circuit 34 sensitive to wheel rotational behaviour, has a discharge distributer 40 connected to the reservoir and the valve and having an inlet port 403 connected to an outlet port 401 by a permanently open passage 44 with a restrictor throttle therein and by a further passage 415 which is opened or closed in dependence on the instantaneous pressure in the circuit. A piston 406 slides within a bore 404 against a spring 410 having a calibrated threshold pressure and the piston has an axial passageway 408 provided with a constriction formed by a disc 409 with a small orifice 411. An annular groove 412 communicates with passageway 408 via a radial passage 413.
Patent GB-870358-A (GB)
Title: Improvements in and relating to holders for lipsticks and like cosmetics
Inventor: LEVY ELIZABETH
IPC: A45D40/02
Filed: 1959-02-06
Abstract: 870,358. Lipstick holders. CRYSTAL PRODUCTS CO. Ltd. Nov. 27, 1959 [Feb. 6, 1959], No. 4228/59. Class 18. A lipstick &c. holder comprises a tubular member 1 in which a sleeve 2 slides and a lipstick carrying cup 3 located within the sleeve 2 and detachably fixed to the member 1, whereby the sleeve 2 may be moved to and fro over the stick 4 and cup 3 to expose or cover the stick. A tongue 5 on the cup 3 projects through a longitudinal slot 7 in the sleeve 2 and co-operates with an L-shaped slot 6 in the member 1 to detachably retain the cup 3 therein. The member 1 is held in a casing 10 to form a shoulder extrusion over which a cover 9 slides. Projections 11 retain the cover in place.
Patent GB-470962-A (GB)
Title: Improvements in or relating to the atomisation of fuel in carburetters for internal combustion engines
IPC: F02M1/00
Filed: 1937-02-12
Abstract: 470,962. Spray carburetters. ABRAMSON, A. Feb. 12, 1937, No. 4246. Convention date, Nov. 2, 1936 [Class 7 (iii )] The fuel entering the induction pipe by the starting - nozzle 4 ad jacent the throttle 2 i directed along a channe 6 and against a baffle 7, to obtain a more com plete and uniform atom ization.
Patent GB-622317-A (GB)
Title: Improvements in magnetic deflecting coil circuits
IPC: F16H1/20
Filed: 1947-02-14
Abstract: 622,317. Sawtooth generating circuits. STANDARD TELEPHONES & CABLES, Ltd. Feb. 14, 1947, No. 4303. Convention date, Feb. 20, 1946. [Class 40 (vi)] A magnetic deflecting coil circuit has the voltage across the coils maintained more nearly according to a predetermined law by means of a pick-up coil coupled to the deflecting coils and supplying a voltage to the deflecting coil supply circuit to correct for variations from the predetermined law. The Figure shows a magnetic deflecting coil circuit for a cathode-ray tube. A sawtooth voltage is produced across capacitor 14 by charging it from the H.T. supply and periodically discharging it through valve 12 at intervals controlled by the blocking oscillator stage 2. The sawtooth voltage is amplified by valve 20 to produce a sawtooth current through the deflecting coils 29, the diodes 33 and resistor 34 damping out high frequency parasitic oscillations in the coil circuit. The pickup coil 35 is magnetically coupled to the deflecting coils 29 and the potentiometer 37 is set so that when the voltage across the deflecting coils is constant during the forward sweep, this voltage and that across the pick-up coil balance out. If the voltage across the pick-up coil during the forward sweep tends to change, a voltage is applied to the suppressor grid 23 to oppose this change. During the flyback period rectifier 40 conducts, thus shorting the pick-up coil 35 and preventing the flyback from being adversely affected by the linearizing circuit.
Patent GB-1533979-A (GB)
Title: Thermally conditioning molten glass
IPC: C03B5/23
Filed: 1975-01-31
Abstract: 1533979 Thermally conditioning glass PILKINGTON BROS Ltd 21 Jan 1976 [31 Jan 1975] 4359/75 Heading C1M Molten glass passing from a refining zone 14 to a shaping operation is thermally conditioned in zone 15 to render it suitable for the shaping, there being no return flow in conditioning zone 15 (due to zone 15 being shallower than refining zone 14), the glass being conditioned by selective cooling at or near the inlet to zone 15 so that the passage through zone 15 completes the conditioning and provides a desired temperature profile. The selective cooling may be by fluid-cooled pipes 30 immersed in the melt and by similar pipes 26 located at the inlet (27) to zone 15. The position of the fluid-cooled pipes may be adjusted in response to the temperature profiles obtained by monitoring thermocouples 35 to achieve the desired profile. Fluid-cooled stiners 22 may also be provided, either in the forwardflowing glass in the refining zone (as shown) or in the zone 15 (Figs. 4 and 5, not shown).
Patent GB-248360-A (GB)
Title: Improvements in or relating to the treatment of metallic oxides
IPC: C01F7/027
Filed: 1926-02-16
Abstract: 248,360. Aluminum Co. of America, (Assignees of Horsfield, B. T.). March 2, 1925, [Convention date]. Abrading and sharpening compositions.- Alumina is converted into hollow globules and purified by injecting a gas at high velocity into a stream of the molten oxide. A crude material such as clay or bauxite may be melted with enough carbon to reduce the iron, titanium, and silicon to an alloy and leave a small excess of carbon, say 1 per cent, in the alumina, the alumina being then treated with a jet of air or steam as above described. The excess of carbon is oxidized, leaving the alumina globules substantially pure. The globular product may be used as an abrasive.
Patent GB-737903-A (GB)
Title: Limb exercising device
IPC: A63B23/035
Filed: 1953-02-18
Abstract: 737,903. Exercising devices. HOTOS, L. Feb. 18, 1953, No. 4546/53. Class 132(1). The links supporting element 15 of a limb exercising device is hinged to a supporting frame 9 so as to swing about a vertical axis and is made up of two portions 16, 17 hinged together, again so as to swing about a vertical axis, means being provided to control and limit the relative pivoting respectively of the two portions 16, 17 and of portion 16 and frame 9 and further means being provided for suspending the limb being exercised from the element. Frame 9 is clamped to a bar 2 and comprises a U-shaped bracket 10 having arms 12, 12<SP>1</SP> with bearings 14 which carry a vertical end piece 18 of portion 16 which comprises two end pieces 18 and two horizontal members 19. A ring 21, having perforations 22 is joined to the end of arm 12 and portion 16 may be held by a pin passing through a perforation in the lower member 19 and one of the perforations 22. If a pin is placed in one of the perforations 22 without passing through member 19, it will limit the swinging of portion 16. Similarly portion 17, comprising one end piece 181, a horizontal member 19<SP>1</SP> and a bent member 24, is mounted in bearings 14<SP>1</SP> of the same construction as bearings 14, including the means for preventing or limiting relative movement. In addition, a pulley 34 is keyed to the upper end 20 of the piece 18 or 18<SP>1</SP>, so as to trim with it, and a cable 36 is secured to the perimeter of the pulley and extends through a block 38 terminating in a lower end 39 on which blocks may be placed. A plurality of hooks 25 depend from members 19, 19<SP>1</SP> by which a sling or the like may be suspended to support the limb. A spade plate 27, secured to member 19<SP>1</SP> as shown, may be provided against which the limb presses or the foot may be clamped to a rod secured to member 19<SP>1</SP>.
Patent GB-361738-A (GB)
Title: Improvements in or relating to dry electric rectifiers
Inventor: GEEL WILLEM CHRISTIAAN VAN
IPC: G03B42/02
Filed: 1931-02-13
Abstract: 361,738. Static contact rectifiers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel, Eindhoven, Holland. Feb. 13, 1931, No. 4584. Convention date, March 8, 1930. [Class 37.] A dry contact rectifier is provided with a cathode consisting, at least in part, of a metal of the first subgroup of the fourth principal group of the periodic system. The cathode is formed of one of the metals zirconium, titanium, hafnium, thorium coated with a layer of one or more compounds of the constituent metal. A zirconium plate may be formed with a coating of zirconium nitride or zirconia or a mixture of these compounds by heating or by chemical or electrolytic means described in the Specification and analogous processes are used with the other metals. The anode is made of a compound containing a negative constituent formed by one of the elements of the halogen, oxygen or nitrogen groups or a mixture of these compounds. Cuprous sulphide containing free sulphur, copper iodide containing free iodine, sulphides of lead, molybdenum, tungsten, and iron, iron hammer scale and phosphorous are mentioned in this connection, as also are the oxides of manganese and cadmium, silver chloride containing free iodine, and lead dioxide. The drawing shows the rectifier unit in which the cathodes a are coated at b as described and placed in contact with the anodes c, the unit being connected for full wave rectification.
Patent GB-1533915-A (GB)
Title: Device for adjusting the inclination of a vehicle's headlamps
IPC: B60Q1/064
Filed: 1976-02-05
Abstract: 1533915 Adjusting vehicle headlamps FAUSTO CARELLO & C SpA 5 Feb 1976 [6 Feb 1975] 04597/76 Heading F4R A device for adjusting the inclination of two groups of vehicle headlamps, each of which groups comprises at least one headlamp 1 or 2, includes a single double acting hydraulic cylinder 22 with a piston 31 slidably mounted therein to define two chambers 27, 28 the volumes of which vary inversely to one another, two transducers 9, 10 each comprising an hydraulic inlet connected to a respective one of the chambers and a mechanical outlet 20 connected to a respective headlamp, and manually operable adjustment means for controlling the axial position of the piston. The adjustment means comprise a control knob 39 connected to a pinion 38 engaged with a rack 34 on the piston. The transducers may be arranged, as shown, in mutually opposed directions but in a modification they are mounted in the same direction and one of the rods 5 and 6 connecting the mechanical outlets 20 to the headlamps is linked to its respective headlamp by way of a rocker arm or other reversing element. A non- return valve may be provided at the inlet of at least one of the transducers, the valve being of the type which closes when the pressure difference exceeds a predetermined value.
Patent GB-1101974-A (GB)
Title: Reinforcing bar
IPC: E04C5/03
Filed: 1965-02-03
Abstract: 1,101,974. Reinforcing bars. FISCHER & CO. and W. HUFNAGL. 3, Feb., 1965 [3, Feb., 1964], No. 4687/65. Heading E1K. A reinforcing bar has one or more helical ribs and one or more helical ribs of opposite hand. The parts of one helical rib may be off set from each other on opposite sides of parts of the other rib. Parts of the ribs may vary in height, width and pitch.
Patent GB-544577-A (GB)
Title: Improvements in or relating to compositions for use in agriculture or horticulture
IPC: A01N59/02
Filed: 1940-03-13
Abstract: 544,577. Sulphur nitride. ARNOLD, M. H. M., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 13, 1940, No. 4693. [Class 1 (ii)] [Also in Group VI] A mixture for treatment of plants and seeds for control of fungi, insects &c. comprise sulphur nitride S, N 4  and iminosulphur S,NH both in solid phase; sulphur also may be present. Inorganic fillers such as anhydride and chalk may be added. The mixture may be produced by reacting ammonia with chlorides of sulphur dissolved in an organic liquid, e.g. carbon tetrachloride, separating the precipitate and returning the liquid to the process whereby after a number of cycles a substantial proportion of iminosulphur is obtained in the precipitate which also contains sulphur nitride and sulphur.
Patent GB-791719-A (GB)
Title: Improvements in or relating to the production of cyclic hydroxamic acids of the pyridine series
IPC: C07D213/89
Filed: 1956-02-15
Abstract: The invention comprises compounds of the formula: <FORM:0791719/IV (b)/1> (wherein R and R1 are hydrogen or alkyl groups of 1 to 8 carbon atoms and R11 is a hydrocarbon group of 4 to 10 carbon atoms) and their preparation by reacting a compound of the formula: <FORM:0791719/IV (b)/2> (wherein the lower alkyl groups have from 1 to 8 carbon atoms) with a Grignard reagent R11Mg-(halogen) and treating the resulting compound of the formula: <FORM:0791719/IV (b)/3> with hydroxylamine or an acid addition salt thereof under hydrolysing conditions, the reaction with hydroxylamine or a salt thereof preferably being performed in methanol and the hydrolysis preferably being effected with ammonium hydroxide.  In examples: (1) n-hexyl magnesium bromide and 2 : 5-dimethoxy-2 : 5-dihydrofuroic acid methyl ester give 2 : 5-dimethoxy - 2 - (a  - oxo - n - heptyl) - 2:5 - dihydrofuran which on standing with hydroxylamine hydrochloride in methanol followed by hydrolysis with ammonium hydroxide gives 1:5 - dihydroxy - 6 - (n - hexyl) - 2 - pyridone: (2) the corresponding cyclohexyl compounds are similarly prepared. Reference is also made to the preparation of the corresponding n-butyl, n-amyl, n-octyl, n-decyl and n-phenyl compounds and to replacement of the 2 : 5-dimethoxy - 2:5 - dihydrofuroic acid methyl ester by a 3 and/or 4-(lower alkyl)-substituted derivative thereof, e.g. the 4-methyl, 3:4-dimethyl, 3-isopropyl and 3-tertiary butyl substituted derivatives; and to conversion of the 1 : 5 - dihydroxy - 2 - pyridones of the invention to the corresponding 5-hydroxy-2-piperidones of the formula: <FORM:0791719/IV (b)/4> by high pressure hydrogenation in the presence of Raney nickel.
Patent GB-657390-A (GB)
Title: Improvements in pneumatic door engines
IPC: E05F15/50
Filed: 1949-02-22
Abstract: 657,390. Pneumatic single-stroke apparatus. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Feb. 22, 1949, No. 4773. Convention date, March 17, 1948. [Class 8(ii)] In a door engine comprising a main cylinder 5, Fig. 1, having an admission and exhaust valve blocks 6, 7 at each end, and a hollow piston rod 9 slidable through block 7 and carrying ring piston 12 forming with a plug 10 at the end of the rod 9 a differential piston assembly, the outstroke of which is effected when equal pressure is exerted on both sides and the return stroke when the pressure at the greater side is exhausted to atmosphere, each of the blocks 6, 7 is provided with a valve device each comprising a main air port 22, 37 a constantly open bleed port 20, 35, Fig. 2, a movable valve 23, 38 able to close said main port 22, 37, a constantly effective loading spring 25, 39 for said valve 23, 38, a movable valve holder 24, 40 for the valve 23, 38, a constantly effective loading spring 28, 43 for said valve holder 24, 40 and a cushioning spring 31, 14 able (but not constantly able) to overcome the constantly effective loading spring 28, 43 for the said valve holder. To effect the outstroke from the position shown, compressed air admitted at a duct 18 to the valve block 6 first unseats the valve 23 to allow air to flow along a tubular thrust rod 29 and an orificed collar 30 to the interior of the rod 9 and thence behind the piston 12. As the latter approaches the end of its stroke a flange 15 abuts the valve holder 40 to close the valve 38 and confine the release of air to the bleed port 35. To effect the return stroke air is exhausted from the blade 6 and pressure supplied to block 7. At the end of the stroke the valve 23 closes the port 22 so that air release is confined to the bleed duct 20.
Patent GB-490396-A (GB)
Title: Improvements in or relating to television transmitting or receiving systems
IPC: H04N5/14
Filed: 1937-02-18
Abstract: 490,396. Television. WHITE, E. L. C., and RATSEY, O. L. Feb. 18, 1937, No. 4856. [Class 40 (iii)] The amplitude of picture signals is varied while the amplitude of synchronizing signals is maintained constant by a circuit including a unilaterally conducting device. In one embodiment, the mixed signals are applied to 3, 4, Fig. 1, bridged by a resistance 5 in series with a diode 6 biassed to conduct on application of synchronizing signals so that the resistance 5 is in series for picture signals and the diode is in shunt for synchronizing signals ; the output is taken from 8, 9, the pixture signals varying according to the slider on resistance 5, while the synchronizing signals are of constant amplitude. This circuit may be used for fading out one picture while holding it in synchronism and changing the transmitter for fading in another picture. Alternatively, two such circuits each associated with a different transmitter may be ganged so that when one picture is faded out, another may be faded in. Owing to the finite resistance of the diode 6, it is impossible to reduce the picture signals to zero ; the circuit may therefore be modified so that the tapping 30, Fig. 3, is taken to the grid of a valve 31 whose cathode is biassed from a resistance 34 across the input 3, 4, so that when the tapping 30 is at its lowest point, the potentials on the grid and cathode of the valve are equal and no output occurs at 35, 36. In this circuit, however, the resistance 34 cannot be made too high as it must be tapped for biassing the valve 31, and the resistance therefore is a load on the input. A further modification employs two valves 37, 38, Fig. 4, the anode current of valve 38 providing a potential across resistance 39 for biassing valve 37 so that the grid and cathode of valve 37 are at the same potential when the tapping 30 is at its lowest point. In another embodiment, the mixed signals are amplified in one channel and the synchronizing signals are isolated and amplified in another channel, the two channels feeding a single channel, Fig. 2, (not shown) ; if necessary, the mixed signals may be stabilized as described in Specification 449,242 and limited to provide a fixed amplitude and level of synchronizing signal. The invention is also applicable to the multiplex signalling system disclosed in Specification 470,495. Specification 419,441 also is referred to.
Patent GB-384266-A (GB)
Title: Improvements in and relating to methods of starting multicylinder vehicle motors
IPC: F01L13/00
Filed: 1931-02-16
Abstract: 384,266. Starting. HUMBOLDTDEUTZMOTOREN AKT.-GES., 149, Deutz- Mulheimerstrasse, Deutz, Cologne, Germany. Feb. 16, 1931, No. 4911. Convention date, Feb. 17, 1930. Void [Published under Sect. 91 of the Acts]. [Class 7 (v).] In starting a multi-cylinder Diesel engine which is rotated by external means, with the compression relieved and the fuel pumps disconnected, the reinstatement of compression and of the fuel supply is effected in transitional stages and simultaneously in all cylinders. The head d of each cylinder c is provided with inlet and exhaust valves e, f and a fuel-injection valve g connected to a fuel pump h, the plunger i of which is actuated by a cam and lever p. The pivot of the lever p is adjusted by means of an eccentric lever z to regulate the fuel charge. A decompression valve x on each cylinder is opened at starting by a lever u connected also by a link s to a wedge q which lifts an overflow valve o on each fuel pump. On moving the lever u to intermediate positions over a quadrant y, and finally to the position shown in Fig. 3, the valves x, o are brought simultaneously and in stages to the normal running position, thus reinstating compression and the fuel supply in stages. An electrically heated incandescent body may be provided for effecting ignition in the partial compression stages. Specification 1424/12, [Class 7 (v), Internal-combustion engines, Starting &c.], is referred to.