baber/WOPTO huggingface dataset:
Patent GB-416510-A (GB)
Title: Improvements in and relating to methods of and means for supporting electric discharge devices
IPC: H01R33/76
Filed: 1933-03-17
Abstract: 416,510. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and TAYLOR, J. H., Clovelly, Dalkeith Avenue, Bilton, Rugby. March 17, 1933, No. 8155. Drawings to Specification. [Class 39 (i).] A device having a base or cap with contact pins thereon, more particularly a large thermionic valve, is provided with a radial flange on the base, which flange, when the base is passed through an aperture in a support, engages the support and may be bolted thereto. Connection to the pins is established by conductors provided with thimbles, which are slipped over the pins and are held by solder or set-screws, or make a sliding fit.
Patent GB-230288-A (GB)
Title: Improvements in flushing cisterns
IPC: E03D1/30
Filed: 1924-04-01
Abstract: 230,288. Shanks, W. April 1, 1924. Valve-discharge water-waste preventers. - A dash-pot A is interposed between the stem 2 of the discharge valve 1 and a rod 3 connected to the operating rod 4. The dash-pot consists of a perforated piston 7 in a cylinder 5 having a a leak-hole 6. A washer 9 forms a non-return valve with the holes 8. The device is applicable to the cistern described in Specification 180,828.
Patent GB-609571-A (GB)
Title: Improvements in or relating to sulphonamides
IPC: C07D239/69
Filed: 1946-03-16
Abstract: 2-(p-Aminobenzene sulphonamido)-pyrimidine is prepared by condensing a benzene sulphonyl-guanidine, which is substituted in the p-position by an amino group or a group which is convertible to an amino group, with propinal or its acetals.  The p-substituent where necessary is then converted to an amino group. Substituents capable of conversion into an amino group are acylamino- (convertible by hydrolysis), alkylidene-amino-, nitro-, nitroso-, azo- and azido- (convertible by reduction) and carbonamido (convertible by Hoffman degradation). Reaction may be carried out with or without a solvent, but preferably with a condensing agent, e.g. alkali metals or alcoholates, mineral acids, carboxylic acid anhydrides or nitrogenous bases.  In examples: (1) 2-(p-aminobenzenesulphonamido)-pyrimidine is prepared by the reaction of p-acetylaminobenzenesulphonyl-guanidine with propargyl acetal in the presence of sodium ethoxide followed by hydrolysis of the acetyl group; (2) the above process is carried out without the use of a condensing agent.
Patent GB-511488-A (GB)
Title: Improvements in and relating to nuts
IPC: F16B37/04
Filed: 1939-03-15
Abstract: 511,488. Screw nuts or sockets. UNITEDCARR FASTENER CORPORATION. March 15, 1939, No. 8297. Convention date, March 21, 1938. [Class 89 (i)] A nut or socket member adapted to be attached to a supporting part such as a metal plate has two internally-threaded yieldable parts 7 adapted to extend through an aperture in the plate and connected at the end 8 inserted through the aperture, means being provided whereby the parts 7 engage the plate for assembling the nut member therewith. Flanges 9 on the free ends of the parts 7, together with side projections 11 form notches 12 which snap over the edge of the plate when the nut is pushed into the aperture therein.
Patent GB-1260972-A (GB)
Title: Process for the alkylolation of hydantoins
IPC: C07D233/72
Filed: 1970-02-20
Abstract: 1,260,972. Alkylolation of hydantoins. RHEINPREUSSEN AG. FUR BERGBAU UND CHEMIE. 20 Feb., 1970 [10 March, 1969], No. 8334/70. Heading C2C.  Hydantoins are alkylolated by introducing an alkylene oxide into the molten hydantoin or into a solution of the hydantoin in a solvent that does not react with the alkylene oxide. When a molten hydantoin is reacted it is preferably at least 5‹ C. above its melting point and in solution a temperature of at least 50‹ C. is preferred. The addition of more than 4 moles of alkylene oxide per mole of hydantoin is preferably performed in the presence of an alkaline catalyst. In the examples 5,5-dimethylhydantoin is reacted with ethylene oxide to give (i) 3-(#- hydroxyethyl)-5,5-dimethylhydantoin and (ii) 1,3 - di - (# - hydroxyethyl) - 5,5 - dimethylhydantoin.
Patent GB-591880-A (GB)
Title: A process for coating surfaces with materials of high melting point
IPC: C23C4/06
Filed: 1945-04-04
Abstract: Surfaces, particularly metal surfaces, are coated with a metal or material of high melting point (i.e. above 2700 DEG  C.) such as the carbides of tungsten, tantalum, titanium, zirconium, by spraying from a metallizing gun-the powdered high melting point material forming a core in a tube of a comparatively low melting point (i.e. below 1750 DEG  C.) metal such as steel, copper, brass. The tube is fed to the gun in the usual manner, and the issuing stream, a mixture of molten metal and high melting point powder, impinges on the surface to be coated, the powder being retained thereon by the molten metal which coats the particles.  Surfaces mentioned are armour plate, motor cylinders and valves.
Patent GB-847253-A (GB)
Title: Instrument approach and landing system for aircraft
Inventor: BEGOVICH NICOLAS ANTHONY
IPC: G01S1/60
Filed: 1957-03-13
Abstract: 847,253. Radio navigation. HUGHES AIRCRAFT CO. March 13, 1957, No. 8357/57. Drawings to Specification. Class 40(7). In an aircraft landing system, the runway is indicated by longitudinal and transverse high frequency radio scanning beam which respectively provide azimuth and elevation readings of craft position. The angular positions of the beams are functions of frequency. The longitudinal beams are a series of vertical planes while the transverse beams are each a sector of a conical surface, the cone apex being at the elevation antenna, at the side of the runway, with the core axis vertical. The intersection of the planes azimuth beam and the conical elevation beam is a hyperbola. The elevation antenna is tilted towards the azimuth antenna in order to place the hyperbola arm, nearest the azimuth antenna, on the runway surface. The angular position of the craft relative to the runway is determined, at the craft, by measurement of the frequency of the incident radiation. The radar echo from the craft provides monitoring signals at the ground transmitters. The beam scanning is effected by means of a frequency shift antenna formed by a folded, rectangular section waveguide with slot radiating elements cut in the narrow hole. The backward wave transmitter and receiver oscillators are electronically tuned, by a series of step voltages applied between the helix and cathode, to produce the successive radiation beam movements.
Patent GB-326028-A (GB)
Title: Improvements in movable steps for vehicles
IPC: B61D23/02
Filed: 1929-03-14
Abstract: 326,028. Peters & Co., Ltd., G. D., and Arthurton, R. I. D. March 14, 1929. Steps.- In a railway or like vehicle a set of steps carried by a swinging structure 4 is adapted to be moved into and out of its operative position by means of a rotary operating-shaft 14 connected to the swinging structure by links 11 and levers 13, the steps being turned upwardly about their pivots as the swinging structure is moved in. wardly beneath the vehicle body. The swinging structure is held against collapse in its operative position by means of lugs 17 on the links and levers 11, 13. During the movement of bringing the structure 4 and the steps 7, 10 beneath the vehicle, the intermediate step 9, shown fixed to the links 11, turns upwardly on its pivots and a similar movement of the lower step is effected by the short levers 19 and links 20. Springs &c. may be used to maintain the steps in their inoperative position and the step control may be effected by pneumatic, or electric motor, or mechanical means e.g. on the opening and closing of the door.
Patent GB-1138727-A (GB)
Title: Improvements in and relating to machines having magnetically operated valves
Inventor: PEILLON FRANCOIS
IPC: F16K15/08
Filed: 1966-02-25
Abstract: 1,138,727. Valves. COMMISSARIAT A L'ENERGIE ATOMIQUE. 25 Feb., 1966 [26 Feb., 1965], No. 8423/66. Heading F2V. [Also in Division F1] A machine, e.g. a piston engine or a pump, comprises a piston 6 reciprocable in the bore of a cylinder having a head 5 which includes a valve seat 4 and a valve closure element 1 movable relative to the seat, the valve element, cylinder and piston each including part of a magnetic circuit consisting of two magnetizable elements, e.g. the element 1 and a plate 7 in the piston, and a magnetic means, e.g. a permanent or electromagnet 8, the reluctance of the circuit being such that, at a point of travel of the piston remote from the closure element, the position of the closure element is dictated by means other than the magnetic means, the reluctance being reduced as the piston with its associated part of the circuit apparoaches the seat until the magnetic force is such as to dictate the positioning of the closure element. The closure element 1 may be flat, conical, cylindrical or in the form of a resilient strip and may be made from ferronickel alloy. The valve seat 4 may be made of bronze and the head 5 and piston 6 of aluminium. The means, other than the magnetic means, dictating the position of the closure element, comprises resilient means and/or the ambient air pressure. In another embodiment the magnetic means is formed at the end of a finger (9, Fig. 2, not shown), integral with the piston and one of the magnetizable elements is constituted by two rings (7a and 7b) provided on a disc (7) forming part of the cylinder head. In a further embodiment the magnetic means comprises a bipole (10, Fig. 3, not shown) carried by the piston, and in this case the valve seat is magnetizable.
Patent GB-215697-A (GB)
Title: Improvements relating to coupling or connecting devices for lubricating apparatus
IPC: F16N21/04
Filed: 1923-03-24
Abstract: 215,697. Benton & Stone, Ltd., and Milner, C. E. March 24, 1923. Cup-leather overlap joints.-A grease gun comprises a body a having a freely rotatable head f mounted thereon for attachment to a nipple d, while a ring of balls or rollers l is provided between the rear flange of the head and a collar k on the body. The front face of the head is arranged with an internally screwed aperture g adapted to engage an externally threaded portion h of the nipple, a cup-leather e being provided in the body a to secure fluid-tightness. The body is also provided with the usual internal valve b.
Patent GB-697286-A (GB)
Title: Flexible coupling between tail cone and jet pipe of a gas turbine engine
IPC: F02K1/04
Filed: 1950-04-04
Abstract: 697,286. Locking nuts. BOYD, W., PASHLEY, A. E., and ROE CANADA, Ltd., A. V. April 3, 1951 [April 4, 1950], No. 8449/50. Class 89 (i) [Also in Groups XXVI and XXVIII] A nut 37 is locked in position by a spring-actuated plunger 32 having a head 36 adapted to engage projections 37a on the nut. A rivet 34 prevents the plunger from rotating.
Patent GB-231529-A (GB)
Title: Manufacture azo-dyestuffs
IPC: C09B29/20
Filed: 1925-03-30
Abstract: Monoazo dyes are produced, either in substance, or in the form of lakes, or upon the fibre, by coupling with 2 : 3-oxynaphthoic arylides the diazo compounds of 2-amino-4-aroylamino-1-alkyloxy or -aralkyloxy-benzenes not containing a free hydroxyl, sulphonic, or carboxylic group; such compounds are the 2-amino-4-benzoylamino-1-anisol and its derivatives substituted in the benzoyl group by chlorine, alkyloxy, alkyl, &c., or the corresponding bodies in which the methoxy group of the anisol is replaced by ethoxy, benzyloxy, &c.  The dyeings on the fibre are fast to light and kierboiling.  According to examples (1) diazotized 2-amino-4-benzoylamino-1-anisol is coupled with 2 : 3-oxynaphthoic-5-chlor-2-anisidide in presence or not of a substratum such as barium sulphate; (2) cotton is prepared with 2 : 3-oxynaphthoic-4-chlor-2-toluidide or -5-chlor-2-anisidide and dyed or printed with diazotized 2-amino-4-benzoylamino-1-anisol; claret-red tints are obtained.  Specifications 6379/12; and 17279/13, [Class 15 (ii), Dyeing, Processes &c. for], are referred to. 2-Amino-4-aroylamino-1-alkyloxy- or -aralkyloxy-benzenes are produced by condensing aroyl chlorides with 2-nitro-4-amino-1-alkyloxy- or aralkyloxy-benzenes and reducing; or, particularly in the case of the aralkyloxy compounds, by aroylating 2-nitro-4-amino-1-oxybenzenes, alkylating or aralkylating, and reducing.  The production of 2-amino-4-benzoylamino-1-benzyloxybenzene is described.ALSO:Azo dyes are produced upon the fibre, by coupling with 2 : 3-oxynapthoic arylides the diazo compounds of 2-amino-4-aroylamino-1-alkyloxy or -aralkyloxybenzenes not containing a free hydroxyl, sulphonic, or carboxylic group; such compounds are the 2-amino-4-benzoylamino-1-anisol and its derivatives substituted in the benzoyl group by chlorine, alkyloxy alkyl, &c., or the corresponding bodies in which the methoxy group of the anisol is replaced by ethoxy, benzyloxy, &c.  The dyeings on the fibre are fast to light and kierboiling.  According to examples cotton is prepared with 2 : 3-oxynaphthoic-4-chlor-2-toluidide or 5-chlor-2-anisidide and dyed or printed with diazotized-2-amino-4-benzoylamino-1-anisol; claret-red tints are obtained.  Specifications 6379/12, [Class 2 (iii), Dyes &c.], and 17279/13 are referred to.
Patent GB-1028067-A (GB)
Title: Method of dry-cleaning
IPC: B01D37/02
Filed: 1965-02-26
Abstract: In a process of dry cleaning using perchlorethylene solvent and a detergent and recycling the solvent after filtering, the solvent passing through the filter is maintained at a degree of water saturation of not more than 50% and an acid number of not more than 0.16.  The detergent may be a petroleum sulphonate salt.  Impurity may be removed from the solvent to control its acid number by distilling a portion of the solvent and/or by adding a non-caking adsorbent to the solvent before the filter. The adsorbent may be magnesium oxide, magnesium silicate, absorbent carbon, or diatomaceous earth. p  In the embodiment of Fig. 1 (not shown), used solvent is discharged from coin-operated machines 10 and 12 through filter baskets 28 and 30 into a tank 26 fed with adsorbent through inlet 70.  From tank 26 it is pumped to a filter tank 48 having inlet pressure gauge 60.  The filtered solvent passes through an outlet pressure gauge 62 and a constant flow valve 50 to a storage tank 14 for reuse after recycling through a bed of decolorizer 54.  A rise in pressure of gauge 62 to a predetermined value indicates need for renewal of the filter.  Water and residual solvent are removed from hot drying air in a condenser 32 and the solvent recycled from a water separator 34.
Patent GB-1510461-A (GB)
Title: Radar display system
IPC: G01S7/22
Filed: 1975-04-23
Abstract: 1510461 Radar displays A C COSSOR Ltd 23 April 1975 [25 Feb 1974] 8489/74 Heading H4D In a radar display system radar returns in polar co-ordinates are stored and read out for display as a spiral scan. In Fig. 3 the spiral scan area is restricted to central portion 22 of screen 24 of the display tube. During each scan period the beam spirally scans the central portion 22 for 60% of the scan period and displays primary targets at close range. The beam, during the remainder of the scan period is caused by a signal generator to follow an erratic but controlled path to display primary and secondary targets at a range greater than the boundary of portion 22 whereafter the beam returns to the central position ready for the next scan period. In Fig. 6 a complete terminal area traffic control installation comprises a primary radar aerial 31, TX/RX 30 with 400 Hz synchronzing trigger 34 which also controls range gate 36 and polar time bases 38. Echo signals from targets at ranges less than a predetermined range R corresponding to the boundary of spiral scan area 22 are routed by ranged gate 36 to be written into spiral scan converter 40 under the control of polar timebases 38 at aerial 31 scan rate. The signals are stored in converter 40 which may be a double gun storage tube or a digital memory and read out at 50 Hz under the control of spiral time bases 42. An offset circuit 48 may be provided to displace the scan area 22 from the centre of the P.P.I. display (see Figs. 4, 5, not shown). Symbol generator 50 receives data from processor 52 representing primary targets at a range greater than R in digital form and secondary radar data from TX/RX 32 via processor 54. Symbol generator 50 moves the scanning beam, e.g. in order of bearing, to each target location and develops simultaneous deflection and video waveforms for this purpose. Symbols identifying each target, e.g. alphanumeric, are thereby displayed. Modifications are described, e.g. a variable range resulting in a compressed spiral scan area, a plurality of displays driven by one scan generator, the linear ramp function producing the spiral scan substituted by a step function, and a digitally generated spiral, are referred to.
Patent GB-693433-A (GB)
Title: Process for obtaining tar free from water in the gasification of fuels of high water content
IPC: C10J3/80
Filed: 1950-04-05
Abstract: 693,433. Recovering dry tar from producer gas or water gas. SCHUSSL, F. April 5, 1950 [April 11, 1949], No. 8554/50. Class 55(i) In the gasification with air or oxygen and steam of fuels containing over 25 per cent of moisture, a water free tar is obtained by preheating the gasifying agents by mixing them with hot combustion products to such an extent that the gases leaving the producer or generator are at a sufficiently high temperature to allow tar to be separated without simultaneous condensation of water. A producer 1 is fed with wet lignite at the top and with air mixed with hot combustion products at the bottom. The combustion products are made in a burner 5 supplied with air through a pipe 4 and oil, or part of the tar produced, through a pipe 9 and are injected into the main air supply pipe 2 through a pipe 6. The gases generated leave the producer through a pipe 7 at a high temperature and pass to an electrofilter 8 wherein tar is removed whilst the gas temperature remains well above its dewpoint. Specifications 249,236, [Class 55(i)], and 476.879 are referred to.
Patent GB-526494-A (GB)
Title: Improvements in or relating to modulating circuit arrangements
IPC: H03F1/06
Filed: 1939-03-17
Abstract: 526,494. Modulating systems. TELEFUNKEN GES. FœR DRAHTLOSE TELEGRAPHIE. March 17, 1939, No. 8611. Convention date, March 17, 1938. [Class 40 (v)] Relates to modulation systems in which positive power is economized by operating the carrier valve at approximately saturation point, and a supplementary valve is used to supply energy during positive modulation periods to the carrier valve. According to the invention, this energy is supplied to the carrier valve at an harmonic frequency which is delivered at the fundamental frequency to the transmitting aerial or other load. As shown in Fig. 2, the grid of the carrier valve T is supplied with carrier frequency from CD, and with harmonic frequency from a frequency doubler DB which is also coupled to the grid of the supplementary valve R2. Modulating signals are applied to both valves from the transformers Ul, U2, and power is supplied, during the positive half-cycles through circuits L4,C4; L3C3; and L2C2 (which are tuned to the harmonic frequency) to the load R, which is tuned to the fundamental. During negative half-cycles, the valve R2 is cut off, and the valve T delivers comparatively little power to the load. In a modified arrangement (Fig. 3, not shown) one auxiliary valve supplies harmonic energy to the carrier stage during positive half-cycles, whilst a second auxiliary valve absorbs power at harmonic frequency from the carrier stage during the negative half-cycles. The first auxiliary valve is kept slightly " open " during non- modulation, and the second auxiliary valve then serves to ensure straight-line modulation.
Patent GB-678635-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K9/08
Filed: 1950-04-06
Abstract: 678,635. Electric incandescent lamps with internal screens. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 6, 1950 [April 13, 1949], No. 8761/50. Class 39(ii) In a lamp for use in a vehicle headlight and of the kind comprising at least two filaments, one of which is associated with a cup-shaped screen to produce a dipped beam, both filaments are located on the longitudinal axis passing through the lamp cap, one in front of the other, and the screened filament 3, which is located substantially in the plane of the two lateral edges of the screen 4, has the shape of a V with its apex pointing towards the lamp cap 5. As shown the main filament 2 is also V-shaped, with its apex directed away from the lamp cap. The positions of the filaments 2, 3 relative to the lamp cap may be reversed, i.e. the screened filament 3 may be the one nearer to the cap. The angle subtended between one of the arms of the V-shaped filament 3 and the axis of the lamp lies between 15 degrees and 60 degrees and is preferably 30 degrees; one arm of the V may be longer than the other.
Patent GB-147258-A (GB)
Title: Improved means for steering two wheeled trailers
IPC: B62D13/00
Filed: 1919-04-07
Abstract: 147,258. Hekking, A. L. P. April 7, 1919. Steering-gear.-Relates to coupling appliances for tractors and two-wheeled trailers of the kind provided with steering adjustments for the trailer, and consists in the use of an additional coupling or corrector rod adjustably connected at one end to the tractor frame or to a part swinging with the tractor steering-wheels and connected at the other end to the steerable trailer wheels. The steering arm of the trailer-wheels (not shown), is connected by a corrector-rod 10 to an arm 6 pivoted at the end A<1> to the tractor chassis, the rod 10 being adjustably connected to the arm 6 as by a nut working on a screw 7 carried by the arm. By fixing the arm 6 relatively to the tractor a simple steering corrector is formed while a compound corrector is formed by pivoting the arm to the chassis, as shown, and connecting it by a second rod 4 to the tractor steering-wheel arm 5. The position of the rod 10 is adjusted for forward or backward driving by means of a toothed wheel 22 on the propeller shaft which drives a second wheel 21 on a shaft 19 connected by gearing 13 adapted to rotate the screw 7 and traverse the nut and rod 10. The wheels 21, 22 are engaged by movements of the change speed lever 26 through linkage 24 and a pivoted fork 25, or other suitable mechanism, forming with a screw-andnut device 27 an automatic release mechanism to disengage the wheels when the rod 10 has completed its movement. The corrector 10, Fig. 7, may be connected to a crank-arm 35 on a shaft 36, rotatable by hand wheel gearing 39 to swing the crank outwards and so vary the position of the rod. This construction can be converted into a compound corrector by mounting the crank-arm on: a swinging support connected to the tractor steering-arm.
Patent GB-1521245-A (GB)
Title: Method and apparatus for blood film preparation
IPC: G01N33/483
Filed: 1977-03-02
Abstract: 1521245 Preparing microscope specimens PERKIN-ELMER CORP 2 March 1977 [22 March 1976] 08800/77 Heading G2J Apparatus for the preparation of blood smears on microscope slides comprises a rotatable slide holder 21 mounted on a carriage 27 in an enclosure 29, a motor 145 for spinning holder 21, preferably at 3,500 rpm, and an assembly for forming a water curtain around holder 21, said assembly including a deflector 125 and a spreader 127 defining an annular gap therebetween, so that when water is supplied to coupling 131 a curtain of water is formed around the holder 21 to collect blood particles and aerosols spun off the slide. The carriage 27 may be withdrawn from enclosure 29 to allow removal of the slide, the deflector 125 being pivoted at 133 so that it will not obstruct the holder 21.