baber/WOPTO huggingface dataset:
Patent GB-1429347-A (GB)
Title: Apparatus for classification or filtering of material suspended in a liquid
IPC: B01D35/22
Filed: 1973-03-12
Abstract: 1429347 Cleaning filters; screening apparatus CELLECO AB 12 March 1973 [29 March 1972] 11853/73 Headings B1D and B2H An apparatus for the classification or filtering of a suspension comprising e.g. cellulose fibres, comprises a fixed strainer 2, a fixed nozzle 5 positioned such that its spray covers only part of the strainer 2 and a reflector (e.g. plate 9) below the strainer 2, which reflector lies in surface-to-surface contact with strainer 2 at least during cleaning of the strainer so that liquid sprayed from nozzle 5 is reflected and the solids collected on strainer 2 are carried to outlet 7. In Fig. 1 the reflector is plate 9 which is moved upwardly by hydraulic cylinder 12 to cover the whole strainer 2 when the strainer is to be cleaned. In Figs. 2 and 4 (not shown) the reflector comprises rotating arms which cover parts of the strainer successively. During filtration of a suspension sprayed from nozzle 5, the filtrate containing fine particles is discharged from chamber 4 maintained under vacuum, through outlet 6 and the larger particles retained on strainer 2 are discharged through outlet 7.
Patent GB-162285-A (GB)
Title: Improvements in or relating to furnaces for electric heating
IPC: F27D11/02
Filed: 1921-04-25
Abstract: 162,285. Pehrson, A. H. April 26, 1920, [Convention date]. Drawings to Specification. Electrode furnaces. - The Specification is limited to a rotary furnace consisting of an horizontal cylinder of large diameter provided with lateral cylindrical or conical drum shaped extensions of a less diameter. The electrodes are introduced through the wall of the cylinder around the extension which may be used for charging. The Specification as open to inspection under Sect. 91 (3) (a) describes an electric furnace in which pairs or groups of electrodes of uniform thickness are brought into contact and are maintained in contact by hand or by automatic devices. Means is provided to permit the substitution of new electrodes when the old ones are nearly consumed. Meters are preferably used with each pair of electrodes to facilitate the control of the voltage. A high current density is used so that heat generated through the resistance of the electrodes themselves contributes to the general heating effect. This subject-matter does not appear in the Specification as accepted.
Patent GB-1063894-A (GB)
Title: Quinazolinedione derivatives
IPC: C07D211/14
Filed: 1964-03-20
Abstract: Novel compounds of the Formula I, wherein R1 represents a halogen atom or a nitro, amino or acylamino group; n represents a number from 0-6 inclusive; m represents a number from 0 to 4 inclusive, so that the radicals R1 are the same or different; and R2 represents a di-C1- 4 alkylamino, unsubstituted, phenyl substituted, substituted phenyl substituted or phenalkyl substituted piperazinyl, pyridyl, unsubstituted or phenyl substituted piperidyl, unsubstituted, phenyl substituted, or substituted phenyl substituted piperazinium, morpholinyl or unsubstituted or substituted benzodiazepinyl and pharmacologically acceptable salts thereof, are prepared by reacting an o-aminobenzamide of the Formula II with phosgene, or with ethyl chloroformate to give the corresponding ethoxy-carbamoyl derivative of the Formula III which is cyclized by heating preferably to a temperature above its melting point, or, where R1 represents a nitro group in the 6-position, by dehydrating an urea of the Formula IV and, if desired, converting a resulting piperazinyl compound into a piperazinium compound and, if desired, converting a free base into an acid addition salt thereof.  <FORM:1063894/C2/1> <FORM:1063894/C2/2> <FORM:1063894/C2/3> <FORM:1063894/C2/4> o-Aminobenzamides of the Formula II may be prepared by reacting a suitable primary amine with isatoic anhydride or a substituted derivative thereof.  1 - Methyl - 2,3,4,5 - tetrahydro - 1,4 - benzodiazepine and its hydrochloride may be prepared by the action of formaldehyde and formic acid on N-methyl-N-phenylethylenediamine.  4 - Cyanomethyl - 1 - methyl - 2,3,4,5 - tetrahydro - 1,4 - benzodiazepine may be prepared by reacting 1 - methyl - 2,3,4,5 - tetrahydro-1,4-benzodiazepine with sodium bisulphite and formaldehyde and then with potassium cyanide. N - [3 - (4 - Phenyl - 1 - piperazinyl) - propyl]-N1 - (2 - carboxy - 4 - nitrophenyl)urea may be prepared together with 1-[3-(21-amino-51-nitrobenzamido) - propyl] - 4 - phenylpiperazine by reacting 1 - (3 - aminopropyl) - 4 - phenylpiperazine with 6-nitroisatoic anhydride.
Patent GB-343382-A (GB)
Title: Improvements in or relating to convertible bodies of motor vehicles
IPC: B60J7/10
Filed: 1930-04-15
Abstract: 343,382. Road vehicle opening tops. DUVIVIER, R., 54, Rue Jean-Jaures, Perret, Levallois, Seine, France. April 15, 1930, No. 11965. Convention date, April 26, 1929. [Class 108 (i).] In road vehicles the movable roof comprises a cover 51, Fig. 1, having lateral rods 53 and slides between marginal parts 50a and parts 54a carried by members 54 pivoted at 55. When it is desired to secure the movable roof and tension it transversely the members 54 are forced outwardly by means of screws 57. Channels 52 communicating with external gutters 60 are provided. The movable roof is secured and tensioned longitudinally by means of a frame 71 pivoted to the top of the wind screen the movable roof being attached to the frame 71 which is then moved angularly by worm or like gearing. The movable roof preferably comprises two lateral rigid portions 60, 61 pivoted together at 62 and also connected by elastic or flexible material 63 so that it may be retracted into a housing 64 at the rear of the vehicle.
Patent GB-848489-A (GB)
Title: Apparatus for production of carbon black
IPC: C09C1/50
Filed: 1958-04-16
Abstract: <PICT:0848489/III/1> A plant for the production of carbon black includes three-way valves (see Group XXIX) each having an inlet 14b for connection to a conduit 14 conveying the products from a furnace 10, and alternative outlets 22 for connection to a conduit 23 collecting the products from the several furnaces, and 24 for connection to a vent pipe.
Patent GB-1097214-A (GB)
Title: Modulating system
IPC: H04N9/66
Filed: 1965-03-22
Abstract: 1,097,214. Amplitude modulation; transistor amplifying circuits; colour television. RADIO CORPORATION OF AMERICA. March 22, 1965 [April 3, 1964], No. 12116/65. Headings H3R, H3T and H4F. In a modulation system producing unwanted output signals at the modulation frequency and at the carrier frequency, the modulation signal is eliminated by combining with it a modulation signal of opposite polarity, and the carrier signal is eliminated by deriving from it a D.C. control signal which is fed back and combined with the modulation frequency. In a colour television system, Q and I video signals are separately amplified in amplifiers 6, 8 and are fed to chopper modulator 13, 14 where they are modulated with sub-carrier signals having the same frequency and quadrature related phases. The resulting outputs are added and fed to a mixing amplifier 23 which produces an output modulated in amplitude and phase. The Q and I video signals are also added and phase inverted in unit 12 to provide a video signal at the input of the mixing amplifier 23 which can be adjusted to cancel out any video frequency signals present at the modulator outputs. Any residual signal at sub-carrier frequency is fed via limiter 27 to a sampling circuit where it is sampled, during periods when no modulation is present, to produce D.C. signals proportional to the relative levels of I and Q sub-carrier components. These signals are then combined with the respective video signals so as to produce signals at the modulator outputs which cancel the residual sub-carrier signals. The required modulated signal, comprising only sidebands is fed to output 26. The video amplifier comprises transistors 4, 5 with negative feedback applied from the emitter of transistor 5 to the base of transistor 4 via a resistor (2400 Q).
Patent GB-1284023-A (GB)
Title: Magnetic stores and methods of producing them
IPC: G11C19/10
Filed: 1970-03-13
Abstract: 1284023 Magnetic storage devices LICENTIA PATENT - VERWALTUNGS - GmbH 13 March 1970 [14 March 1969] 12236/70 Heading H3B A woven memory matrix has anodized aluminium or aluminium alloy drive wires as the warp and weft. The wires may be anodized before or after weaving, and in either case the anodized layer insulates the wires from one another. The layer is rendered hole free by heating in steam and then the woven matrix is dipped in a molten resin or glass adhesive. The excess adhesive is removed in a centrifuge, and the stable matrix thus produced is plated with gold or copper by a vapour deposition or an electroless process. A nickel-iron magnetic film is then electrodeposited on to the plated layer, while a current is passed through the warp or weft to establish an easy axis of magnetization. To prevent interaction between adjacent storage sites, the film and the gold or copper layer is etched away to leave magnetic material only adjacent the wire cross points. Alternatively, the gold or copper may be deposited only at the cross points. A magnesium-aluminium alloy having 1-5% Mg is preferable.
Patent GB-638472-A (GB)
Title: Improvements in or relating to wrenches, screwdrivers and the like
IPC: B25B19/00
Filed: 1948-05-04
Abstract: 638,472. Wrenches; screwdrivers. ATHERTON, H. May 4, 1948, No. 12257. Addition to 609,168. Drawings to Specification. [Class 61 (iii)] [Also in Group XXII] In an impact wrench or screwdriver having an archimedean driven fly-wheel as described in the parent Specification, the ratchet teeth on each ratchet nut and the dogs on the driving tube and on the tool shaft are equal in number and are spaced equiangularly and the helix threads on the tool shaft and in the ratchet nuts are arranged in predetermined position with respect to the dogs on the tool shaft and the ratchet teeth on the ratchet nuts respectively, and the actuating pawls of the ratchet are arranged in predetermined position with respect to the dogs on the driving tube, so that correct engagement between the dogs on the tool shaft and driving tube is ensured in all instances. According to a further modification, the fly-wheel or driving tube is provided with flats engageable by the operator's thumb to prevent rotation of the fly-wheel so that the device may be used as an archimedean screwdriver. Means for retaining a screwdriver bit or the like within the chuck consists in providing the shank of the bit with an annular groove which is engageable by balls forced into position by a sleeve slidable upon the outside of the chuck.
Patent GB-1097201-A (GB)
Title: Electrical pulse generator
Inventor: FITCH RICHARD ANTHONY
IPC: H03K3/57
Filed: 1964-03-24
Abstract: 1,097,201. Semi-conductor pulse circuits. NATIONAL RESEARCH DEVELOPMENT CORPORATION. March 23, 1965 [March 24, 1964; Dec. 15, 1964], Nos. 12270/64 and 51114/64. Heading H3T. [Also in Divisions F1 and H2] In a pulse generator, particularly for ignition systems of internal combustion or jet engines or for the ignition of gas or oil burners, a step-up transformer (TX1) is energized for constant periods of time by a switching device (T3) and arranged so that an opening of the switching device, a capacitor (C2) becomes charged and is later discharged by a triggered discharge device (T4) so as to generate a pulse. Fig. 1 shows an ignition circuit for an I.C. engine in which transistor T1 is normally conductive and transistors T2, T3, T5 normally non-conductive. Each time the conventional cam-shaft-driven contact S 1 is opened, T5 is turned on, turning off T1 which forms with T2 a monostable circuit. Transistors T2, T3 are thus turned on for a time determined by the values of capacitor C1 and resistor R1. The primary inductance of transformer TX1 is thus charged during this period. At the end of the time period, T3 is turned off so that the energy in transformer TX1 charges capacitor C2 via diode D1. Thyristor T4 is triggered next time contacts S1 open, discharging C2 via TX2, thus generating a spark of oscillatory nature in a spark plug (not shown) connected to capacitor C5. Transformer TX2 may have a non-linear ferro-magnetic core. The operation is improved by the temperatureresistance characteristics of lamp L1 which may be the ignition indicator lamp. Generating constant-energy pulses.-A Zener diode Z prolongs the unstable period of the monostable circuit when the supply voltage is low so as to allow more time for the primary current to transformer TX1 to build up and thus stabilize the energy in each pulse. Switch S2 may be closed at low triggering frequency to convert the circuit T1 . . . T3 into a free running oscillator. Pulse generators with multiple discharging circuits.-In Fig. 4 (not shown) a common circuit T1 . . . T3, TX1, C2 may be triggered by individual contacts S1 (one for each cylinder); C2 being successively discharged by individual circuits comprising transformer TX2 and thyristor T4 mounted adjacent each spark plug. The contacts S1 may be replaced by a dynamoelectric device having multiple pick-up coils or by a plurality of photo-transistors energized from a single beam of light extending radially from a rotating shaft.
Patent GB-773166-A (GB)
Title: Shoes
IPC: A43B13/14
Filed: 1955-04-28
Abstract: 773,166. Boots &c. MILLER, W. B. and MILLER, V. E. April 28, 1955, No. 12323/55. Class 17 (2). In backless-shoes or sandals, with or without a back strap, the heel 13 is caused to cling to the foot by a spring wire shank stiffener which tends to elevate the heel. Two such stiffeners 21, 28, 19 and 24, 27, 25 may cross at the junction of the shank and ball of the shoe and be fixed between the liner 23 and the sole as by points 22. The stiffeners are set with a right angular relationship between the parts 21, 19 and 24, 25, respectively, to elevate the heel 13. The crossed parts 27, 28 may be enclosed in a sleeve or covered by a pad.
Patent GB-1122113-A (GB)
Title: Device for regulating the delivery speed of a carding machine
IPC: D01G15/36
Filed: 1966-03-21
Abstract: 1,122,113. Control of A.C. motors. ZINSERTEXTILMASCHINEN G.m.b.H. 21 March 1966 [20 March, 1965], No. 12329/66. Heading H2J. [Also in Division G3] A device which senses the amount of carded band in a store between a carding machine and a drawing frame provides signals for stardelta switching of a three-phase motor which drives the carding machine, whereby the stored amount is kept within predetermined upper and lower limits. The driving motor is started in the delta-connection by energizing deltaswitch 42 and main contactor 41, relay 43 shunting a safety fuse in the motor circuit for a period determined by relay 45. At this stage, the delivery speed of the carding machine is higher than the take-up speed of the drawing frame so that the stored amount increases. Closure of contact 59-1 indicates that the storedamount has reached a maximum, relay 48 responding to energize timing relay 49 for switching off the motor driving the carding machine provided that the drawing frame has not started. If, on the other hand, the drawing frame is switched on, relay 46 is energized to close star-switch 44. whereby the speed of the carding machine decreases to a value smaller than that of the frame After a period determined by the relay 47, the star-switch is opened and the motor is switched to the deltaconnection.
Patent GB-1308676-A (GB)
Title: Screw conveyor and screw therefor
IPC: B65G33/00
Filed: 1970-03-13
Abstract: 1308676 Screw conveyers METZELER AG 13 March 1970 [13 March 1969] 12335/70 Heading B8A A conveyer screw comprises flight sectors 3 of steel or other rigid material, secured, as by welding, to a shaft 1. Rubber flight sectors 4 are secured to the sectors 3 by bolts 7 and are joined to each other, at chamfered zones 5, by adhesive. The overall diameter of the screw, in a plane perpendicular to the screw's axis, is slightly greater than the diameter of the internal cavity of the conveyer body.
Patent GB-592382-A (GB)
Title: Improvements in or relating to virus vaccines
IPC: A61K39/12
Filed: 1945-05-16
Abstract: An aldehyde (such as formaldehyde)-killed virus vaccine is produced in dessicated form by adding to such vaccine while still in the liquid state an aldehyde-reactive reagent which does not destroy the virus vaccine antigens, freezing the thus treated vaccine, and thereafter dessicating it while maintaining in the solid state the material being dessicated.  Suitable reagents include sodium bisulphite and/or sodium sulphite, sodium sulphamate and amino acids e.g. glycine and other protein hydrolysates such as alanine, glutamic acid, hippuric acid, histidine, lysine, aspartic acid and taurine. Other salts of sulphurous and sulphamic acids such as potassium, calcium and amine salts and substituted sulphamates, e.g., sodium phenyl sulphamate may be used.
Patent GB-554095-A (GB)
Title: Improvements in or relating to the production of high octane motor fuels by the catalytic heat treatment of hydrocarbons
Filed: 1940-07-31
Abstract: 554,095. Hydrogenating and dehydrogenating hydrocarbons. STANDARD OIL DEVELOPMENT CO. July 31, 1940, Nos. 12422, 12423 and 12424. Convention dates, Sept. 8, 1939, Oct. 21, 1939 and Oct. 28, 1939. Addition to 543,968. [Class 2 (iii)] Hydrocarbon fractions boiling within the gasoline range are reformed to produce stabilized fuel of high octane rating and low gum content by treatment with catalysts in two stages in the first of which reaction conditions are arranged so that dehydrogenation takes place and hydrogen is evolved during the reaction while in the second stage the reaction conditions are such that hydrogenation occurs. The two stages may be carried out in one reaction vessel. In the dehydrogenation zone the temperature is maintained at 850-1050‹F. pressure up to 500 pounds per sq. inch, and the quantity of hydrogen introduced is 1,000- 4,000 cubic ft. per barrel of oil, the feed rate being 0.1-3 volume of oil per volume catalyst per hour. In the hydrogenation stage the temperature is lowered to 600-850‹ or to 400-600‹F. where strongly hydrogenating catalysts are used, e.g. oxides or sulphides of Group VI with or without aluminium oxide or those of zinc, magnesium, nickel, cobalt, iron. The total pressure is generally maintained the same but is increased with increasing temperature or with active catalysts e.g. to 3,000 pounds per sq. inch. Catalysts of the same type may be used in each reaction zone provided that reaction conditions are controlled so that in the first zone they act as dehydrogenation catalysts and in the second zone as hydrogenation catalysts. Oil and hydrogen from tanks 1, 7 are heated in coils 5, 11, mixed in line 13 and fed into reactor 14, charged with catalyst 15. The dehydrogenated products and hydrogen are then passed through a heat exchanger 17 to the second catalyst chamber 19 from which the hydrogenated products are recovered through cooler 23 to high pressure separator 24 from which the liquids are passed with reduction of pressure to fractionator and stabilizer tower 26 from which gasoline is recovered to tank 31. Hydrogen separated in 24 is washed with absorber oil to recover rich constituents in absorber plant 33, 34 and then recycled. Provision is made for regenerating used catalyst by a mixture of air and inert gases supplied from tanks 50, 52. In Fig. 2 the two stages are carried out in one reactor 115, dehydrogenating conditions being maintained at the entrance to the chamber 115 while hydrogenating conditions are maintained at the exit end by introducing hydrogen through pipe 116. The extent of the hydrogenation zone may be varied by operations of valves 118 controlling the position at which the hydrogenating gases are supplied. Specification 527,975 is referred to.
Patent GB-420571-A (GB)
Title: Improvements relating to electrical transmission systems for multiple carrier frequency currents
IPC: H04B3/32
Filed: 1934-04-25
Abstract: 420,571. Two - way transmission. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. April 25, 1934, No. 12513. Convention date, May 18, 1933. Drawings to Specification. [Class 40 (iv)] [See also Group XL] Spiral quad cable is employed for carrier signalling, both pairs of a quad being used for transmission in the same direction and the frequency bands in one pair being more or less staggered in relation to those in the other pair. The phantom circuit may be employed to carry further channels in the same direction, a staggered relation then being necessary between the frequency bands in all three circuits. Preferably, the quads for each direction are screened, singly or as a group, from those for the other or are carried in separate cables. These measures may be employed only at the ends of the cable.
Patent GB-377735-A (GB)
Title: Improvements in internal-combustion engine air-compressor aggregates
IPC: F04B35/00
Filed: 1931-04-28
Abstract: 377,735. Air compressors ; two-stroke engines. AKTIEBOLAGET ATLAS DIESEL, Stockholm. April 28, 1931, No. 12534. Convention date, May 8, 1930. [Class 7 (ii).] In a portable motor compressor for supplying pneumatic tools such as rock drills, the under, closed side of the compressor acts as a pump for supplying the scavenging air for the engine driving the compressor. A combined compressor and scavenge pump cylinder may be arranged at each end of the cylinder. In the arrangement shown the compressor is of the coaxial two stage type, with pistons 17, 18. The Specification as open to inspection under Sect. 91 (3) (a) also states that the upper side of the pump may supply the scavenge air and the lower the air for outside use. This subjectmatter does not. appear in the Specification as accepted.
Patent GB-668186-A (GB)
Title: Improvements in or relating to variable resistances or potentiometers
IPC: H01F21/00
Filed: 1949-05-12
Abstract: 668,186. Variable resistances. EGEN ELECTRIC, Ltd.; and KING, A. E. May 12, 1950 [May 12, 1949], No. 12638/49. Class 37. [Also in Group XXIV] A variable resistance or potentiometer in which a slider is moved by a rotatable shaft with a helical groove is so arranged that when the slider reaches either extremity of the groove it becomes disengaged therefrom by continued turning of the shaft. Two end brackets 1, 2 of insulating material are rigidly connected by two metal brackets 3, 4, the latter of which has a terminal tag. Also supported by the end brackets is a resistance wire 5 wound on a former and connected to a terminal at each end. The end brackets have bearings for a shaft 6 rotatable by a knob 7. A nickel silver or other slider 8 is formed with a turned-up tag which engages a helical groove in the shaft 6. One end of the slider rests on the resistance wire 5 whilst the other end rests on the bracket 4, the resilience of the slider maintaining electrical contact and also holding the tag in the groove. On turning the knob 7 the slider 8 moves along the resistance wire 5 until it reaches the end of the groove in the shaft, whereupon continued rotation of the shaft causes the tag to ride out of the groove without causing any breakage of the parts. When the knob 7 is rotated in the opposite direction the tag again enters the groove. Alternatively the slider 8 may be arranged above the shaft 6 and be carried by a U-shaped member adapted partly to encircle the shaft, this member being provided with a protuberance extending into the groove.