baber/WOPTO huggingface dataset:
Patent GB-1360989-A (GB)
Title: Fire-lighting compositions
IPC: A62D1/00
Filed: 1971-10-04
Abstract: 1360989 Powdered fire extinguishants CHUBB FIRE SECURITY Ltd 4 Oct 1971 [5 Oct 1970] 47296/70 Heading A5A A pulverulent composition useful for firefighting comprises the product of reacting at elevated temperature a mixture of (i) a cyanate and (ii) a carbonate, sesquicarbonate or bicarbonate, either (i) or (ii) being an ammonium salt and the other an alkali or alkaline earth metal salt. The mixture may be heated to at least 100‹C under 150-400 p.s.i.g. for at least one hour, and the product ground and optionaly mixed with known additives, e.g. water-repellent and free-flow agents, additives, to promote foam-compatibility and other firefighting agents, e.g. NaHCO 3  and/or monoammonium phosphate. The Example uses potassium cyanate and ammonium carbonate.
Patent GB-1362949-A (GB)
Title: Aircraft
IPC: F16L39/04
Filed: 1970-10-06
Abstract: 1362949 Aircraft fuel tanks HAWKER SIDDELEY AVIATION Ltd 4 Oct 1971 [6 Oct 1970] 47499/70 Heading B7W  An aircraft has a bomb-bay rotary door 21 constructed as a long-range fuel tank. To enable fuel to be drawn from the tank each end wall is formed with an annular body 6 fixed by ring 7 and screws 10 to the respective end wall diaphragm 1 concentrically with the door pivot 3, the body 6 having an inwardly-facing cavity into which fits a stator 5 which is restrained from rotation by a link 11 connecting the stator to fixed aircraft structure. The stator carries a bearing 9 and a seal 15 and is formed with an annular cavity 8 which constitutes a fluid flow passage between fuel pipe 12 from the tank interior and pipe 13 leading to the engine fuel supply system. A similar connection is provided for the tank venting system 28. Electrical cables may pass through pivot 3 and an arrangement is described (Fig. 6, not shown) in which further cables are encased in a flexible conduit which is secured to link 11, and wound round pivot 3 before passing through an elbow pipe into the tank. There may be a plurality of liquid withdrawal connections, for withdrawing liquid from the compartments of a divided tank (Figs. 7, 8, not shown).
Patent GB-1453284-A (GB)
Title: Rectifier units for alternating current generators
IPC: H02K11/04
Filed: 1973-10-12
Abstract: 1453284 Rectifier units ROBERT BOSCH GmbH 12 Oct 1973 [14 Oct 1972] 47767/73 Heading H1K [Also in Division H2] In a rectifier unit for an A.C. generator, a plurality of output diodes are carried by two heat sinks in the form of discs with projections at the outer peripheries thereof, the discs overlying one another with the projections on one disc disposed between the projections on the other disc. In the 3-phase motor vehicle generator of Fig. 1 (not shown), a rectifier unit (13) includes a pair of heat sinks 23, 31, Fig. 2, each comprising a disc 24 with a set of peripheral projections 25 having radial portions 26 and axial portions 27, the projections being interpersed as illustrated. The heat sinks include apertures 28 for mounting the diodes of the rectifier unit, diodes (14a, 14b, 14c) connected to a positive terminal (17) being on heat sink 23 and diodes (15a, 15b, 15c) connected to a negative terminal (18) being on heat sink 31. The heat sinks are spaced apart by an insulating plate 32, and the assembly is held together by rivets 33. The discs 24 each include a cut-out sector 37 for mounting a brush holder (not shown) or voltage regulator (21, Fig. 1), and each has notches 35 therein for mounting a circuit board 36. The terminals of the diodes are joined to conductive plates (43, Fig. 4, not shown). Further diodes (16a, 16b, 16c) of the generator are joined to a conductive insulated strip (45, Fig. 4). In the unit of Figs. 5-7 (not shown) heat sinks (23, 31) are provided with a floating mounting by insulated clamping pieces (47, 48).
Patent GB-1035147-A (GB)
Title: Manufacture of unsaturated aliphatic carboxylic acids
Inventor: OHARA NAOJI KURATA TAKASHI
IPC: B01J27/057
Filed: 1964-11-25
Abstract: Unsaturated carboxylic acids, e.g. acrylic and methacrylic acids are prepared by oxidizing an a -olefine in the vapour phase at from 200 DEG  to 500 DEG  C. with molecular oxygen in the presence of a catalyst of empirical formula <FORM:1035147/C2/1> wherein v is from 1 to 16, w from 1 to 3, x from 6 to 24, y from 0.2 to 4 and z from 11 to 152.  The catalyst may be in the form of a mixture of oxides or heteropolyacid salts and may be on a conventional support.  Examples describe the treatment of propylene and isobutylene.ALSO:Catalysts for use in a process for the oxidation of a -olefines in the vapour phase at between 200 and 500 DEG C. to unsaturated aliphatic carboxylic acids have the empirical formula CovSnwMoxTeyOz where v is from 1 to 16, w from 1 to 3, x from 6 to 24, y from 0.2 to 4, and z from 11 to 152.  The catalyst may be a mixture of oxides or of a heteropoly acid salt and a metal oxide and may be supported on silica, diatomaceous earth, alumina, silicon carbide, titanium oxide or zirconium oxide.  Examples describe the preparation of acrylic and methacrylic acids by adding ammonium chloride followed by stannic chloride to a warm aqueous solution of ammonium pararmobybdate, filtering and working the product, then adding cobalt nitrate and tellurium nitrate to a boiling aqueous solution of the product which is finally pelleted and dried at 400 DEG C. Acrylic and methacrylic acids are prepared using the above catalyst and the tellurium and stannic components are varied in ratio.
Patent GB-1185190-A (GB)
Title: Servo systems for controlling the the positions of a movable member
IPC: G05D3/18
Filed: 1967-10-24
Abstract: 1,185,190. Automatic control systems for tape transports AMPEX CORP. Oct. 24, 1967 [ Oct. 27, 1966], No. 48200/67. Heading G3R. In a magnetic tape transport system of the type comprising two reels each controlled by a respective servomotor system responsive to the deviation from a desired position of a loop of tape in an associated vacuum chamber, Fig. 1 (not shown) a combined signal representative of the loop position and its rate of change is compensated by a signal representative of the motor current to over-ride the component due to loop velocity and so ensure that the position component becomes the primary controlling factor in the error signal. As shown a loop position signal, preferably derived by an optical sensor generally similar to that described in co-pending Specification 1,169,440, is compared with a reference signal 47, 48 to provide an error signal and is differentiated by an R.C. circuit 50, 51 to provide a rate of change signal, these two signals being applied to an operational amplifier 42 having a conventional feedback circuit 54, 55. The output signal of amplifier 42 is differentiated by an R.C. circuit 58, 59, 60 to provide a signal which is combined, through a "level-adjust" resistor 62, with a signal representative of the current taken by a D.C, motor 40 when driving the reel in one direction, e.g. a forward current. The combined signal is applied to a second operational amplifier 44 which provides an inverted output signal largely representative of loop velocity during the start of acceleration and deceleration intervals and has a feedback circuit comprising a resistor 61 and a decoupling capacitor 64 forming a low pass filter. The output of amplifier 44 is combined, through a second low pass filter comprising members 70, 72, with a signal representative of "reverse" current of the motor 40 and the resultant signal is applied to a phase splitter circuit 74 whose two outputs respectively control "forward" and "reverse" Schmitt triggers 76, 77 which in turn control silicon controlled rectifiers 80, 81 for energizing the "forward" and "reverse" windings 84, 85 of the motor 40. Resistors 78, 79 delay operation of the triggers until selected amplitudes of signal are reached. The low-pass filters 61, 64 and 70, 72 respectively integrate the "forward" and "reverse" current signals in the same sense and act to decouple these signals under operating conditions of repeated change. The system described thus compensates for rate of change of the loop and lag in the motor response during acceleration or deceleration in either direction of rotation.
Patent GB-1024756-A (GB)
Title: Evaporation of liquids which contain dissolved solids
IPC: C02F1/10
Filed: 1963-12-06
Abstract: 1,024,756. Evaporation systems; distillation of water. LUMMUS CO. Dec. 6, 1963 [Dec. 10, 1962], No. 48289/63. Heading BIB. A solution of dissolved solids is concentrated in evaporation unit 10, e.g. a multiple-effect evaporator, whence the concentrated solution flows through line 12 to submerged combustion unit 13 where the solution is further concentrated by contact with hot combustion gases to give a slurry, the slurry is conveyed through line 19 to filter or centrifuge 18, the mother liquor is returned via line 21 to unit 13, and the hot gases and vapours, withdrawn from unit 13 through line 22, are used as heating medium in evaporation unit 10. The system may be used to produce distilled water and salt from saline water which is introduced into multipleeffect evaporator 10 through line 9. Distilled water is withdrawn from evaporator 10 through line 11. Compressed air in line 16 is mixed with fuel supplied through line 17, and the mixture is conducted to the burner of unit 13. The hot gases and steam leaving the unit 13 flow through line 22 into the heating element of one of the effects of evaporator 10, and the condensed water is withdrawn through line 23. The now cooled gases are passed through line 24 to turbine 25 for driving air-compressor 15. Salt is discharged from the system via line 20.
Patent GB-1390524-A (GB)
Title: Hydroxyquinoline derivative
IPC: C07D215/30
Filed: 1972-10-20
Abstract: 1390524 5 - Fluoro - 8 - bismuthohydroxyquinoline PECHINEY UGINE KUHLMANN 20 Oct 1972 [20 Oct 1971] 48343/72 Heading C2C 5 - Fluoro - 8 - bismuthohydroxyquinoline of formula may be prepared by reacting 5-fluoro-8-hydroxyquinoline with a bismuth salt. In the example a solution of 5-fluoro-8-hydroxyquinoline in acetone is added to a solution of bismuth nitrate in water containing dilute nitric acid and the combined solution is then neutralized to pH 6À5-7À0 by addition of aqueous sodium carbonate. Pharmaceutical compositions for oral or rectal administration having antiparasitic and bacteriostatic activity comprise 5-fluoro-8- hydroxyquinoline together with a pharmaceutically acceptable carrier.
Patent GB-1027227-A (GB)
Title: Improvements in or relating to endless-tracks for land vehicles
IPC: B62D55/275
Filed: 1962-12-21
Abstract: 1,027,227. Endless tracks. K. GERLACH and H. GERLACH. Dec. 21, 1962 [Dec. 21, 1961], No. 48373/62. Heading B7H. The links of an endless track for vehicles comprise hollow steel or light alloy members 1 through which pass rods 5 having torsion resisting rubber coatings, those in adjacent links being joined together by connecting members 5<SP>1</SP>. On their upper sides, the links are provided with sprocket-engaging guide members 2 of light alloy having hard wearing sleeves 3, and rubber coatings for engagement with the track guide rollers. On their lower sides, the links are provided with ground engaging members 10 having ribs 8, 9 between which may be fitted rubber or steel chocks. The members 1 may be formed integrally or of two interfitting halves shrunk in place and welded together. In modifications, each track link may comprise two separate members 1, Fig. 6 (not shown), or the members 1 may be formed integrally with the ribs 8, 9 or may have the connecting rods 5 at different elevations. The ground engaging shoes may extend across the links.
Patent GB-1322559-A (GB)
Title: Aurmatic devices for controlling the braking system of vehicles and preventing the locking of road wheels
IPC: B60T8/36
Filed: 1970-10-12
Abstract: 1322559 Antiskid braking systems REGIE NATIONALE DES USINES RENAULT and AUTOMOBILES PEUGEOT 12 Oct 1970 [17 Oct 1969] 48377/70 Heading F2F An antiskid braking system has a sensor 46 which compares two signals having their magnitudes proportional to the instantaneous speed of the wheel and its real ground speed respectively to determine slip above a predetermined value and energizes a solenoid 43 of a modulating unit 26 controlling the supply of vacuum from a source 38 to a servo unit 5 which has a diaphragm 19 operating a rod 8 operating in turn a valve 11 so that when wheel lock is imminent the valve 11 shuts off pressure from the master cylinder 11 as rod 8 is withdrawn and expansion of the volume available to the fluid acting on the brakes causes their release. Wheel speed is measured by means of a wheel-driven tachogenerator 50, 51 and vehicle speed is measured by a Doppler effect probe 53.
Patent GB-1373358-A (GB)
Title: Radar systems
IPC: G01S13/87
Filed: 1971-10-19
Abstract: 1373358 Pulse radar; transponders SIEMENS AG 19 Oct 1971 [22 Oct 1970] 48560/71 Headings H4D and H4L    A secondary radar system comprises primary and secondary radar transmitters 1, 11 respectively, a transponder 25 replying only after reception of a pulse from the primary radar so that the passive echo due to the primary radar and information from the transponder interrogated by the secondary radar appear simultaneously adajacent each other on P.P.J. 8. Transmitter 1 sends pulses via amplifiers &c. 2 and transmit-receive switch 3 pulses PS (Fig. 3, not shown) being emitted via aerial 4. Received echo pulses are passed via switch 3 to converter 5, coupled to heterodyne oscillator 6, delay 7 and finally P.P.J. 8. Transmitter 11 supplies amplifiers, &c. 12 and stage 14 for coding the interrogation signals, the code being provided by generator 13. The resulting signals are passed via transmit-receive switch 15 to aerial 16 mechanically coupled to aerial 4, emitting signals AS (Fig. 3, not shown). The response signals are passed via switch 15 to converter stage 17 coupled to heterodyne oscillator 18. The signals are decoded at 19 and set to P.P.I. 8 the information being presented as shown adjacent the echospot. Delay 7 may be necessary to ensure that the echo signal is presented to the P.P.J. at the correct time. The transmitters 1, 11 are controlled by pulse generator 20, a delay 21 being inserted to arrange or specific delay between the primary and secondary radar pulses and also possibly to make the repetition frequency of the primary radar an integral multiple of that of the secondary radar. The transponder 25 has an aerial 26 receiving the interrogation signals and receiving section 27, 28. The required information held in store 30 is coded, if the interrogation signal is valid, by 29 and stored in 31. At the same time a signal from 29 is sent to AND gate 37. Aerial 33 receives the primary radar pulse filter 34 removing any secondary radar interference. The signal is demodulated in 35 and passed via threshold detector 36 to AND gate 37. After a time period the information in 31 is transmitted via aerial 32. Fig. 4 (not shown) illustrates schematically the reception at 25 of interrogation signal AS<SP>1</SP> after transit time t 2 , transfer of coded reply RT into store 31 between times t 5  to t 6 , reception of primary radar pulse PS<SP>1</SP> and transmission of reply RT<SP>1</SP> after the predetermined time period t 4 <SP>1</SP> to t 7 .
Patent GB-1236775-A (GB)
Title: Process for the production of modified silica and silicates
IPC: C09C3/10
Filed: 1968-10-14
Abstract: 1,236,775. Organically modified silicas and silicates. DEUTSCHE GOLDUND SILBERSCHEIDEANSTALT. 14 Oct., 1968 [12 Oct., 1967: 2 Dec., 1967], No. 48579/68. Heading C1A. [Also in Division C3] Organically modified silicas or silicates are produced by impregnation from an aqueous emulsion or dispersion of a water-insoluble, inert, colourless high melting point wax or plastics material having a softening range above 75 C. which is added to an aqueous suspension or dispersion of the silica or silicates during and/or after the precipitation of silicas or silica gels or silicates from alkali metal silicate solutions with acids or metal salts, after which the mixture is filtered and the filter cake washed, dried and finely ground. 0À5 to 15% by weight of wax or plastics material is preferably added, and impregnation may be promoted by intensive mixing. Examples of waxes and plastics materials are both natural and synthetic waxes, polyethylene, polyvinyl chloride and "Teflon" (Trade Mark). Sources of silica used in the examples are water glass to which sulphuric acid or aluminium sulphate is added, or soda water glass to which sulphuric acid is added. In one embodiment the wax or plastics material in emulsion or dispersion form is added to a finely divided silica or silicate that has been redispersed in water, provided such silica has been obtained by the aforementioned precipitation process. The products are suitable for use as delustrants in lacquer films (see Division C3).
Patent GB-1164225-A (GB)
Title: Electrical Multiple Connector
Inventor: SINCLAIR WILLIAM
IPC: H01R13/42
Filed: 1967-10-27
Abstract: 1,164,225. Multiple sockets. ERICSSON TELEPHONES Ltd. 26 July, 1968 [27 Oct., 1967], No. 48882/67. Heading H2E. An electrical jack connector (capable with slight modification of being formed as a plug member, see below) comprises an insulating body 3 having a plurality of pairs of slots, such as 11, 12 and 21, 22, for receiving resilient metal strips 31, 32 that act as the jack members. Each wall, e.g. 13, that separates a pair of slots is integral with the body 3 and extends beyond the body on each side, the portion 14 on one side increasing in thickness as it leaves the body so as to form a pair of wedge surfaces. The resilient strips 31, 32 are inserted from side 2 of the body until shoulders abut side 2 and allow lip portions 34 to pass over the end of wedge portion 14, thus locking the strips in position. The plug member has metal strips 42, 41 mounted on insulating member 47 and may be formed from a construction similar to that of the plug body. The resilient strips, Fig. 1 (not shown), are punched out from flat strip and require no pretensioning as the spring tension is acquired by virtue of the wedge 14.
Patent GB-1063257-A (GB)
Title: Spark ignition systems
Inventor: ADAMS DEREK STANLEY
IPC: F02P3/05
Filed: 1964-12-02
Abstract: 1,063,257. Ignition systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 28, 1965 [Dec.2, 1964; March 10, 1965], Nos. 48946/64 and 10108/65. Heading F1B. In an ignition system energy derived from a battery is stored in an inductor and then used to produce a spark, the amount of energy stored being determined by a current sensing device which stops current flow from the battery to the inductor when the current flowing in the inductor reaches a predetermined value. As shown when the control circuit 28 receives a pulse from the generator 27 it assumes a state in which it supplies a signal to the switch 14 to turn the switch 14 on. The capacitor 24 has been previously charged and now discharges through the primary winding 23 of the ignition transformer and the main terminals of the switch 14 so that a spark is produced at the appropriate plug. While the switch 14 is on current flows through the inductor 16 and the current sensing device 17 and when the current flowing through the device 17 reaches a predetermined magnitude a signal is fed from the device 17 to the control circuit 28 to cause the circuit 28 to assume an alternative state in which the signal applied to the control terminal of the switch 14 is altered so that the switch 14 is turned off. The energy stored in the inductor 16 now charges the capacitor 24 and the cycle is repeated when a further pulse is received by the control circuit 28. The switch 14 may comprise a transistor or a gate controlled switch which latter term is explained in the Specification. A temperature sensitive resistor may be included in the circuit. The invention is further described with reference to circuit diagrams of Figs. 2 to 7 (not shown).
Patent GB-978247-A (GB)
Title: Improvements in synchronous induction motors
IPC: H02P1/50
Filed: 1963-12-12
Abstract: 978,247. Synchronous motors. FIRST ELECTRIC CORPORATION OF SOUTH AFRICA Ltd. Dec. 12, 1963 [Jan. 7, 1963], No. 49077/63. Heading H2A. The wound rotor 12 of a synchronous induction motor is D.C. excited during normal running from an additional winding and rectifiers 15 also carried on the rotor. The additional winding is excited by field winding 14 when the brushes 13 are raised in the usual way after the starting sequence.
Patent GB-1313232-A (GB)
Title: Polyester imides
IPC: H01B3/30
Filed: 1971-10-22
Abstract: 1313232 Coated wire CELLA-LACKFABRIK DR C SCHLEUSSNER GmbH 22 Oct 1971 [24 Oct 1970] 49228/71 Heading B2E [Also in Division C3] Cu wire is electrically insulated by coating with a lacquer containing a poly(ester imide) and solvent naphtha, xylenol, or cresol, and butyl titanate. The poly (ester imide) is derived from a tricarboxylic acid, an aromatic diamine, and a polyol.
Patent GB-1430566-A (GB)
Title: Isolation of proteins
IPC: C07K14/415
Filed: 1974-11-15
Abstract: 1430566 Separating proteins from vegetable materials NESTLE SA 15 Nov 1974 49494/74 Heading C3H A process for isolating cytoplasmic proteins from aqueous vegetable materials containing chloroplastic and cytoplasmic proteins involves adding chitosan to the vegetable material to form a flocculate of the chloroplastic proteins and a supernatant, separating the flocculate and recovering a fraction containing cytoplasmic proteins from the supernatant. According to the preferred features the chitosan is added as a 3% solution in acetic acid in an amount corresponding to 0À02-0À15 grams chitosan per gram of crude protein, flocculation is effected at a pH of 5-3 to 6À5 and at a temperature below 40 C., e.g. 10-20 C., and the cytoplasmic protein is recovered from the supernatant by a heat coagulation treatment (80 C. for 2 minutes), by precipitation at a pH of about 4À0 or by ultrafiltration, and dried to a powder. Chitosan may itself be recovered from the chloroplastic fraction by suspending the latter in an aqueous medium at a pH of 4-5 centrifuging the suspension and precipitating the chitosan from the centrifuged suspension by adjusting the pH to a value of about 7. Examples relate to the isolation of proteins from (1, 2) a green juice obtained by mincing and pressing a mixture of alfalfa (84%) and rye grass (16%), and (3) juice obtained from fresh spinach. Other vegetable materials, including beetroot tops, are also mentioned.