baber/WOPTO huggingface dataset:
Patent GB-1083267-A (GB)
Title: Flap systems for aircraft
Inventor: ALLCOCK ALASTAIR WILLIAM RODNE
IPC: B64C21/02
Filed: 1964-12-11
Abstract: 1,083,267. Aircraft trailing edge flaps. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Dec. 13, 1965 [Dec. 11, 1964], No. 50618/64. Heading B7G. [Also in Division F2] An aircraft wing trailing edge blown flap has a discontinuity in its surface to promote separation, and means are provided for shielding the discontinuity from the flow over the flap. The flap 2 described may have in its nose a notch 5 which is covered by the wing shroud until the flap is lowered to more than, say, 60 degrees; or a passage (6, Fig. 3, not shown), leading from the nose to the lower surface, which is normally closed by the wing shroud; or a step (9, Fig. 4, not shown) below which the nose is cut away to form a passage through which air can flow from the lower to the upper surface when the flap is lowered sufficiently; or a spoiler plate may be pivotally mounted on the flap nose and spring biased to extend away from the flap surface when it is not constrained by the shroud. The discontinuity is intended to produce an increase in drag and reduction in lift after landing or aborted take-off. The aircraft may be a jet flap aircraft.
Patent GB-1196756-A (GB)
Title: Improvements in Aerofoils.
Inventor: LEMOIGNE PIERRE MARCEL
IPC: B64D17/52
Filed: 1967-11-07
Abstract: 1,196,756. Parachute canopy vents; aircraft wing slots; sails. P. M. LEMOIGNE. 7 Nov., 1967 [18 Nov., 1966], No. 50640/67. Headings B7G, B7V and B7W. [Also in Division F2] A member subject to an airflow (e.g. a parachute canopy, an aerofoil of a flying device, or a sail of a ship) has a passage therethrough from the high pressure to the low pressure side, the passages having a cross-section which varies along its length. In one form shown in Figs. 9 and 10, a parachute gore 6 has an opening from L to L<SP>1</SP> through which air enters a "blister" 28 where it departs through a nozzle formed by a panel 24 overlying a part 22 of the gore, to flow along the low pressure surface. The blister "28" is made up of a lenticular panel 28 and two trapezoidal panels 30, 32, alternatively rectangular and trapezoidal panels may be used.
Patent GB-1515140-A (GB)
Title: Process for preparing water-dilutable heat-curing coating compositions
IPC: C09D163/00
Filed: 1975-12-10
Abstract: 1515140 Coating composition CIBA-GEIGY AG 10 Dec 1975 [12 Dec 1974 1 Oct 1975] 50663/75 Heading C3B Water dilutable, heat curable, coating compositions are prepared by: (a) reacting an aromatic polyglycidyl ether (I) (M.W. 360-500) with polyethylene glycol(II) (M.W. 400-800) in the presence of 0-20% by wt., based on the combined weight of I and II, of a polyhydric phenol (III) to form a water dilutable OH- containing adduct; (b) adding 5-50% by wt. of solids of an aminoplast (IV) or phenoplast curing agent, and (c) dilating with water to bring the total solids in the range 10-80% by wt. and to yield a stable aqueous composition containing no particles >0À1 micron. I may be a diglycidyl ether of bisphenol A or of bisphenol F. III may be bisphenol A. IV may be hexamethoxymethylmelamine or a methylated urea/formaldehyde condensate. The molar ratio of I : II + III may be in the range 1 : 1 to 3 : 1. Reaction may take place at 200-300C and the OH-containing adduct may have an epoxy value of 0À001-0À10 epoxy equivalents/ 100 g.
Patent GB-1339656-A (GB)
Title: Control circuit and lock valve for pivot axle lockout rams
IPC: B60G17/005
Filed: 1971-11-03
Abstract: 1339656 Preventing lateral canting RUSTONBUCYRUS Ltd 3 Nov 1971 [5 Nov 1970] 51052/71 Heading B7D A control circuit in an excavator carrier or like vehicle having an hydraulic propulsion motor 8 and an oscillating axle 1 with hydraulic lockout rams 5 comprises a connecting line 6 between the rams 5, a normally-closed lock valve 7 in the line 6, and actuating means connected between the motor 8 and lock valve 7 for automatically opening the valve when the motor is activated. Whenever the motor 8 is supplied with pressure fluid from a pump 11 through a control valve 10, a line 14 is pressurized through a shuttle valve 13 to actuate the lock valve 7. The lock valve 7 is also actuated through a line 24 whenever a control valve 20 is operated for supplying pressure fluid from a pump 19 to a ram 18 for lowering outriggers 15. The lock valve 7 comprises inlet passages 26 for the line 6, respective spring-loaded check valves 28 facing the inlet passages, and a pair of shuttle spools 32 which move away from one another in a bore 27 to unseat the check valves 28 when pressure fluid is applied at an inlet passage 35 through the line 14, so that the inlet passages 26 communicate through the check valves 28 and a by-pass passage 33. The line 24 is connected through an inlet passage 36 to the by-pass passage so pressure fluid therefrom can open the check valves 28 directly. The propulsion motor may alternatively be electric, and the lock valve may be opened electrically.
Patent GB-1133955-A (GB)
Title: Improvements in or relating to a tractor-mountable loader
IPC: E02F3/34
Filed: 1965-12-02
Abstract: 1,133,955. Shovel loaders. INTERNATIONAL HARVESTER CO. 2 Dec., 1965 [23 Dec., 1964], No. 51179/65. Heading E1F. A hydraulic power system for a tractormountable loader having a vertically swing- able boom is such that high pressure, low speed actuation of the boom swinging means 16 occurs during the initial part of the full range of upward movement of the boom and low pressure, high speed actuation of the boom for the rest of the upward movement. The system involves a first pump 26 of which the output is constantly available to operate the means 16. There is also a second pump 24 operating at a lower pressure but higher volumetric output than the first pump 26. The delivery of the second pump is only available to operate the means 16 when the pressure of delivery from the first pump to a control valve 36 falls below a predetermined value to cause the valve to connect the pumps 24, 26 in parallel to the means 16. The delivery pressure of the pump 26 to the valve 36 is regulated by a check valve 62 that is operated by a linkage 64, 66, 68 on ithe boom reaching a certain position in the upward swing thereof.
Patent GB-1441695-A (GB)
Title: High strength steel
IPC: C22C38/12
Filed: 1974-11-27
Abstract: 1441695 Steel TOWMOTOR CORP 27 Nov 1974 [4 March 1974] 51397/74 Heading C7A High strength steel for making rolled beam or channel comprises:- C 0À28-0À34% Mn 1À2- 1À6% Nb 0À01-0À02% Si 0.15- 0À6% V 0À06-0À08% P preferably less than 0À04% S preferably less than 0À05%, the balance, apart from residual impurities (such as nitrogen), being iron. The steel is used for making a fork lift truck mast channel in a particular example.
Patent GB-1445608-A (GB)
Title: Hot water beverage makers
IPC: H02H5/08
Filed: 1973-11-07
Abstract: 1445608 Water heaters DANFOSS AS 7 Nov 1973 [8 Nov 1972] 51731/73 Heading F4A In a hot water beverage maker, a water tank 1 is connected by way of a cold water pipe 8 to a water inlet of an electrically heated heat exchanger 10 having connected thereto a riser pipe 11 discharging into a coffee pot 13, the heat exchanger 10 being connected in series with a PTC resistor 17 thermally connected by thermal resistance T T1  and R T2  to the cold water pipe 8 and the heat exchanger respectively such that the current flow in the heating element 9 falls to a low value when the temperature of the PTC resistor rises above a predetermined change over value. The PTC resistor 17 may be located, attached to, though electrically insulated from, a metal bridge member 18 on which the inlet pipe 8 and heat exchanger 10 are soldered (Fig. 4). Alternatively, a disc-like PTC resistor (22) may be located beneath the heating element of a warming plate (12) of the coffee maker (Fig. 7, not shown).
Patent GB-1080009-A (GB)
Title: Benzimidazoles
IPC: C07D235/10
Filed: 1964-12-21
Abstract: Novel 2-trichloro methyl benzimidazoles of the formula <FORM:1080009/C2/1> (where X is hydrogen or one or more nuclear substituents selected from halogen, hydroxy, acyloxy, alkyl, alkoxy, alkythio, haloalkyl, nitro, amino, and substituted amino groups, preferably in the 5(6)-position or the 5- and 6-positions) are prepared by reacting a monosalt of the selected o-phenylenediamine with an alkyl trichloroacetimidate, and nitrating if the nitro derivative is required.  Veterinary preparations.-The compounds of the invention have anthelmintic properties and aqueous suspensions of powders of them may be used as veterinary anthelmintics.  Methyl trichloracetimidate is prepared from trichloracetonitrile and methanol in the presence of anhydrous K2CO3.
Patent GB-1240723-A (GB)
Title: Electric discharge machines
IPC: B23H1/02
Filed: 1968-10-31
Abstract: 1,240,723. Electro-erosion. SEIBU DENKI KOGYO K.K. 31 Oct., 1968 [2 Nov., 1967], No. 51768/68. Heading B3V. [Also in Divisions H3-H5] An electric discharge machine includes a variable resistor VR for carying the amplitude of current through the machining gap E-W while maintaining constant the ratio of amplitude to duration of current flow. In one embodiment Fig. 1, a capacitor C is connected between a branch circuit B including a resistor RL and a semi-conductor switch T 2a  in series with the gap E-W and a branch circuit A which includes a resistor R and a semi-conductor switch T whereby the branches A and B are rendered alternately conductive and non conductive. The slider N of the variable resistor VR is connected to a D.C. source. The switches may be transistors, reverse blocking triode thyristors, turn-off thyristors or bi-directional diode or triode thyristors. When switch T 2a  is fired, a discharge occurs across the gap and the capacitor C is charged through resistors VR and R if the slider N is connected to terminal 3.. When the capacitor C is almost fully charged, the switch T 1  is fired to cause switch T 2a  to be non-conductive and the discharge to cease. The capacitor is then charged through resistor RL and when switch T 2a  is again fired, a discharge occurs across the gap. In another embodiment Fig. 4, the potential at point a rises due to capacitor C 1  whilst the switch T 2d  is conductive. The switch T 1d  is subsequently caused to be turned on, whereupon the potential at point b is lowered and the switch T 2d  turned off. The switch T 2d  is subsequently switched on again via capacitor C 2 .
Patent GB-1529030-A (GB)
Title: Process for removing mercury from aqueous media
IPC: C25B1/36
Filed: 1976-12-13
Abstract: 1529030 Extracting mercury from aqueous media HOECHST AG 13 Dec 1976 [11 Dec 1975] 51911/76 Heading C1A Mercury is extracted from an aqueous medium, e.g. from an amalgam electrolysis cell, having at least 2 moles of C1- per mole of Hg, by treatment with an organic phase substantially immiscible with water and containing a mineral acid salt of an amine R 1 R 2 R 3 N where R 1 -R 3  are C 8-13  alkyl, and the Hg is recovered from the organic phase by treatment with aq.NaCl soln. containing sufficient NaOH to convert all amine salt present to free amine. Continuous procedures are described.
Patent GB-1398948-A (GB)
Title: Separating agent
IPC: B29C33/60
Filed: 1973-11-09
Abstract: 1398948 Mould release agent HENKEL & CIE GmbH 9 Nov 1973 [11 Nov 1972] 52126/73 Heading C5F A separating agent, for the release of polyurethane foams from moulds, comprises a solution of a neutral magnesium salt of an α-sulphocarboxylic acid of chain length 8-26 carbon atoms in a mixture of 30-70 parts by volume of water and 70-30 parts by volume of a solvent comprising a C 1 -C 4  aliphatic alcohol. The solvent may also contain acetone or methylethyl ketone in a volume not more than the volume of the alcohol. The magnesium salts may be used in amount 0À1-3 wt. per cent of the solution, and may be prepared by sulphonation of the corresponding fatty acids with SO 3  and neutralization with Mg(OH) 2 , MgO or MgCO 3 .
Patent GB-1401505-A (GB)
Title: Electrical circuitry for providing a measure of frequency  of a cyclically varying input signal
IPC: G01R23/02
Filed: 1972-11-10
Abstract: 1401505 Frequency to voltage converters KNORR BREMSE GmbH 10 Nov 1972 [10 Nov 1971] 52133/72 Heading H3A A frequency to voltage converter comprises a first circuit 1-5 for producing a first intermediate signal Uc whose magnitude is at a given point of each cycle of the input signal proportional to the duration of the last preceding such cycle, a second circuit 6, 7 responsive to the signal Uc to produce a second intermediate signal Usp whose magnitude is maintained equal or proportional to the magnitude of Uc at the given point in the relevant input cycle, a third circuit 8, 9 responsive to the signal Usp to produce a pulse train having a pulse duration proportional to the magnitude of Usp and an Rc circuit 11, 12 connected to receive the pulse train to produce an output voltage proportional to the input frequency. In operation, a first monostable circuit 1 is responsive to the trailing edge of an input signal Uf to produce a pulse U 1  which renders an FET6 conducting during its pulse duration to transfer the peak voltage of Uc stored at capacitor 4 to another capacitor 7. A second monostable circuit 2 is responsive to the trailing edge of pulse U 1  to produce a further pulse of short duration to quickly discharge the capacitor 4 via a switch 3. The capacitor 4 starts charging again via a current source 5. A monostable multivibrator 9 has its output repetition rate controlled by an astable multivibrator 8 and its output mark to space ratio controlled by the voltage Usp via a voltage to current converter 10. If the input signal fails or its frequency falls below an acceptable value, the charge voltage across capacitor 4 increases and the circuitry 22-30 act in such a manner to increase the voltage Usp to a limiting value so that the final output Ua falls sufficiently low for activating an anti-skid control system in a vehicle whose wheel speed is being measured.
Patent GB-1357839-A (GB)
Title: Differential pressure responsive switch
IPC: B60T8/26
Filed: 1972-11-13
Abstract: 1357839 Pressure differential responsive indicators BENDIX CORP 13 Nov 1972 [13 Dec 1971] 52237/72 Headings F2E and F2F In a pressure differential responsive switch, two piston portions 48, 61, joined by a stem 80, are acted upon by pressure fluid in respective chambers 58, 72 in respective circuits of a dual hydraulic brake system, the stem having a land part 94 bounded by two ramps 86, 88; an electrically non-conductive body 95 secured to the switch housing 26 has a cylindrical bore 100 containing an electrical terminal 106, fixed at one end thereto and its other end connected to an indicator, and a plunger 114 having an axial projection 120 with a spherical head 122 and a cylindrical head on the other end, the spherical head contacting the land part when the pressures in the two circuits are equal so that a clip associated with the plunger is maintained out of contact with the terminal, but, upon a pressure differential occurring across portions 48, 61, the spherical head slides down one of the ramps, aided by resilient means located in the cylindrical bore 100, to allow clip-terminal contact to actuate the indicator until the pressures are subsequently equalized. The piston part 48 is exposed to fluid in a front wheel disc brake circuit which includes a metering valve 24, and the piston part 61 is exposed to fluid in a rear wheel drum brake circuit. The plunger 114 has the clip 134, Fig. 2, riveted to the cylindrical head 116, the clip having inwardly projecting prongs 140 with outwardly arcuate ends 144 which, when a pressure differential occurs, are biased by a spring 124 to contact a head 108 of the terminal thereby connecting a visual indicator to earth via the housing 26, the indicator being connected to a power source. Fig. 5 shows a similar clip which is located at the upper end of the spring 124 whose prongs when the plunger 114 is on the land part 80, are held away from the terminal head 108 by an extension 250 of the plunger pressing against the inner prong surfaces.
Patent GB-1493809-A (GB)
Title: Push button keyboard members
IPC: H01H21/00
Filed: 1974-12-04
Abstract: 1493809 Mechanical switches TEXAS INSTRUMENTS Inc 4 Dec 1974 [17 Dec 1973] 52466/74 Heading H1N [Also in Division B6] A keyboard assembly comprises an integral member including keys each defined by a U- shaped slot in the member, each key consisting of a raised button 34, a lever portion 42, and an integral hinge portion 40. Each key includes a projection 38 for engagement with a convex metal disc 20 through an insulating layer 24 the disc being deformable to close a conductive path between contact elements 14, 18.
Patent GB-1237078-A (GB)
Title: Copper-base alloy foil heat exchanger elements
Inventor: JACKSON RUSSELL JOHN
IPC: F28F21/08
Filed: 1967-11-17
Abstract: 1,237,078. Copper alloy heat exchanger elements. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. Oct.28, 1968 [Nov. 17, 1967], No. 52485/67. Heading C7A. Heat exchanger elements are made from a foil 0À01-0À001" thick rolled from an alloy comprising:- the balance, apart from impurities such as less than 0À01% P and less than 0À05% Mg, being Cu. Alloys containing both Cd and Sn are claimed. Use:- Vehicle radiators.
Patent GB-1160376-A (GB)
Title: Improved Compression Ignition Engine.
Inventor: EYZAT PIERRE
IPC: F02B23/06
Filed: 1966-11-23
Abstract: 1,160,376. Fuel injection engines. INSTITUT FRANCAIS DU PETROLE, DES CARBURANTS ET LUBRIFIANTS. Nov. 23, 1966 [Nov. 23, 1965], No. 52510/66. Heading F1B. The frusto-conical throat 4 of a precombustion chamber 3 is almost closed at top dead centre by a similarly shaped boss 8 on the piston which is surrounded by an annular combustion chamber cavity 10, the fuel being injected as a conical sheet through the gap between the boss 8 and throat 4. The residual volume of the space 5 in the cylindrical top dead centre is at least 70% of the total residual volume including that of the precombustion chamber. At full load fuel enters both the cavity 10 and the chamber 3; at part load the time of injection is delayed so that a smaller proportion of the fuel enters cavity 10. Helical grooves 13, 14, may be formed in the throat 4 and boss 8. In Fig. 3 (not shown) the chamber 3 is situated eccentrically and the injector is arranged to inject a greater proportion of fuel to the larger part (5a) of the main combustion chamber.
Patent GB-1350408-A (GB)
Title: Fluid pressure operated sequence valve
IPC: F15B13/04
Filed: 1971-11-17
Abstract: 1350408 Pneumatic motor control circuits ROSS OPERATING VALVE CO 17 Nov 1971 [18 Dec 1970] 53382/71 Heading F1P [Also in Divisions F2 and G4] Clamps A, B and C are extended in turn and then all retracted in response to successive manual actuations of a valve 101. The circuit comprises three valves 11a, 11b, 11c, each of which provides a pulse on a first outlet 14a, b, c in response to a first pulse at its inlet 13a, b, c. Each valve 11a, b, c, has a spool which is moved rightwards by the first pulse applied to its inlet so that the next and any subsequent pulses applied to its inlet are directed to the second outlet 15a, b, c. The second pulse applied to valve 11c (i.e. the fourth pulse of a sequence) moves all the spools leftwards and retracts all the clamps.
Patent GB-1362487-A (GB)
Title: Means for generating a flat-topped pulse with sine-squared rise and fall characteristics
IPC: H03K4/92
Filed: 1972-11-20
Abstract: 1362487 Pulse shaping WESTINGHOUSE ELECTRIC CORP 20 Nov 1972 [13 Dec 1971 53486/72 Heading H3P An arrangement for generating pulses having sine squared rise and fall characteristics comprises: means responsive to first and second pulses to generate sine squared rise and fall pulses of predetermined duration; means for generating a rectangular pulse coincident at its initiation with the termination of the rise pulse, and coincident at its termination with the initiation of the fall pulse; and means for summing the pulses. The first of the two pulses causes resonant circuit 12 to ring and produce a sine squared signal which is fed to gating circuit 18, 20. The two pulses are fed to delay 14 and pulse stretcher 16 to produce gate control signals which are sufficiently delayed to open the gate at rising and falling portions of the sine squared signal, and which are of such a width that the gate remains open for the predetermined time. The output from stretcher 16 is also fed via steering circuit 32 to trailing and leading edge detectors 34, 36 which produce set and reset pulses for a bi-stable 38, whose output provides the rectangular pulses. The resulting pulses are then summed in amplifier 40.
Patent GB-1327278-A (GB)
Title: Bladed turbine rotors
IPC: F01D5/08
Filed: 1970-11-13
Abstract: 1327278 Welding by fusion; soldering MOTOREN-UND TURBINEN-UNION MUNCHEN GmbH 13 Nov 1970 [15 Nov 1969] 54275/70 Heading B3R [Also in Division F1] Gas turbine blades 3, 4 are attached to a rotor 8 by triangular shaped retaining segments 1, 2 secured together at their line of abutment 13 and having flanges 9, 10 secured to the sides of the rotor rim. The join at 13 may be by brazing or electron beam welding, the runout 14 of the weld seam possibly forming a tack weld for the adjacent segment 15. Securing of flanges 9, 10 to the rim may be effected by filling annular recesses in the sides of the rim with solder or brazing material 16, 17 prior to assembly of the blades and, after assembly, heating the rotor in a furnace to melt the solder or brazing material. In the arrangement shown the blades 3, 4 are integral with their respective retaining segments 1, 2, but in a modification (Figs. 3, 4, not shown) the blades and segments (30, 31) are separate and the latter have aerofoil slots (32, 33) through which the working portions of the blades protrude. The blades have individual or common semi-annular platform like root portions (24, 25) which are held against the rotor rim by the retaining segments (30, 31). The blades may be of sintered material or filaments in a matrix filler.
Patent GB-1206706-A (GB)
Title: Improvements in or relating to coating compositions
IPC: C09D191/00
Filed: 1968-11-19
Abstract: 1,206,706. Electrodepositable coating compositions. VIANOVA KUNSTHARZ A.G. 19 Nov., 1968 [20 Nov., 1967], No. 54924/68. Heading C4A. [Also in Division C7] Electrodepositable coating compositions comprise water, a water-miscible solvent, and a product obtained by reacting 10-25% by wt. of a dienophile with 90-75% of a polymerized hydroxy-free drying and/or semi-drying fatty acid ester or mixed ester of such an acid and a rosin acid, the polymerization having been effected to increase the viscosity of the ester 3-30 times, and neutralizing the adduct with a nitrogen base. The solvent is preferably one containing no primary hydroxy groups e.g. acetone, M.E.K., t-butanol, t-pentanol, diacetone alcohol, dioxan, tetrahydrofuran, diethylene glycol diethyl ether, dimethyl sulphoxide or dimethyl formamide; minor amounts of secondary alcohols e.g. i-propanol, sec.- butanol, 1-butoxypropan-2-ol, dipropylene glycol or cyclohexanol can be used. The ester is preferably a naturally-occurring drying or semidrying oil, particularly in admixture with dehydrated castor oil. The dionophile is preferably maleic acid or anhydride, fumaric acid or itaconic acid. The nitrogen base may be ammonia, triethyl- or trimethylamine, diethyl-, di-isopropyl- or dibutylamine, morpholine, N-methylmorpholine or piperidine. The dienophile and ester are heated together at 160- 220 C. In Examples 1, 2 and 4 the compositions are pigmented with red iron oxide.