baber/WOPTO huggingface dataset:
Patent GB-1484849-A (GB)
Title: Water based coating composition and method of making same
IPC: C09D167/00
Filed: 1976-05-03
Abstract: 1484849 Coating composition WHITTAKER CORP 3 May 1976 [12 June 1975] 17932/76 Heading C3B A water-thinnable coating composition comprises: (I) a low M.W. (#700) water dispersible ester prepared from at least one polycarboxylic acid and at least one polyol; (II) an amine salt prepared from (a) an aliphatic amine and (b) a COOH-containing ester prepared by reacting an aromatic, hydrogenated aromatic or saturated aliphatic dicarboxylic acid with a half-ester of an epoxy resin and a monocarboxylic acid; (III) cross-linking agent reactive with OH-groups having 4-6 reactive groups per molecule (e.g. hexamethoxymethylmelamine or tetramethylolurea); and (IV) a water miscible coupling solvent. The wt. ratio I : II : III ranges from 2 : 1 : 0À5-0À3 to 1 : 2 : 0À5-0À3. An example of I is prepared from (by wt.) 375 parts triethylene glycol, 370 parts phthalic anhydride and 300 parts trimethylolethane. A typical compound for use in II is prepared by first reacting a diglycidyl ether of bisphenol A with benzoic acid and reacting the resultant half-ester with succinic anhydride; the amine salt may be obtained by reaction with diethylethanolamine. Examples of IV are diacetone alcohol, 2-butoxyethanol and 2-ethoxyethyl acetate. Uses.-Coating food and beverage cans.
Patent GB-1426699-A (GB)
Title: Hydraulic circuit including a priority system for series connected hydraulic systems
IPC: B66F9/22
Filed: 1974-04-24
Abstract: 1426699 Power steering systems CATERPILLAR TRACTOR CO 24 April 1974 [10 May 1973] 17967/74 Heading B7H In an hydraulic circuit having serially arranged steering and implement valves 82 and 148 a valve 190 between these valves is operative to maintain a pressure differential between the steering and implement circuits sufficient to ensure proper working of the steering circuit at all times. Valve 82 has inlet and work parts 89, 90, 92 controlled by spool 116 and includes a further spool with orifices 109 which opens the inlet to a discharge port 98 and line 144 as set out in Specification 1,051,690. Line 144 connects the inlet 146 of the open centre valve 148 and a pressure relief valve 180. Valve 148 has work parts 154, 156 controlled by valve 172 and a spool 152. Valve 190 is connected by a part 206 in a chamber 208 to the pump pressure line 78 and has inlet and outlet parts 198, 200, controlled by a spool 220 apertured at 228, 230, connected to lines 144, 176. The spool is spring loaded at 222 and is moved against the springs by pressure in chamber 208. In an example the steering valve pressure is limited to a predetermined value of 2750 p.s.i., relief valve 180 is set to open at 2040 p.s.i. and valve 190 is set to start opening at 2200 p.s.i. When the engine is operating at high idle with the steering circuit at relief pressure of 2750 p.s.i., valve 190 opens sufficiently to limit pressure in the implement circuit to 610 p.s.i.
Patent GB-672798-A (GB)
Title: Alloy and container made therefrom
IPC: A61J1/00
Filed: 1949-07-07
Abstract: Weakly acid liquids, for example pharmaceutical preparations are stored in a container the walls of which are made of an austenitic alloy comprising Cr 20-26 per cent; Ni 15-25 per cent; Mo 1-3 per cent; C not exceeding 0.06 per cent and the remainder iron, the alloy being free from precipitated carbides.  In order to ensure complete solution of carbides, satisfactory cold working properties and a suitable grain size, preferably 5 to 8 A.S.T.M. standard, the alloy may be annealed for at least 1 1/2 minutes at at least 1950 DEG F. and then cooled within 3 minutes to below 800 DEG F.  Before exposure to the weakly acid liquids the container may be exposed to a concentrated solution of an inorganic acid, the concentration of which is preferably at least 30 per cent of saturation, at an elevated temperature, e.g. 70 DEG C. up to the boiling point of the acid.  The concetrated acid may be HNO3, H2SO4 or HCl or mixtures of two or more of these with or without organic liquids such as acetic acid. Examples are given of suitable treating compositions in some of which NaCl is also included.
Patent GB-613200-A (GB)
Title: Improvements in aileron or rudder control devices for aircraft
IPC: B64C13/02
Filed: 1946-06-15
Abstract: 613,200. Controlling aircraft. HELLIWELLS, Ltd., and PICKRELL, S. H. June 15, 1946, No. 18045. [Class 4] An aileron and rudder control and trimming device comprises a rotary tube b2 to which the ailerons are connected and which incorporates a quick pitch screw d engaging a sleeve e<SP>1</SP> to which the rudder is connected. The device is primarily intended for rudder or aileron trimming with the control system described in Specification 600,371, in which the ailerons and rudder are jointly operated by rotation of the tube b<SP>2</SP> through transverse pivotal movement of a universally mounted control lever, fore-andaft movement of the latter operating the elevators. The rudder is trimmed by rotation of the control lever which is connected to a flexible cable a, the rotary movement of the lever causing longitudinal, non-rotary, movement of the screw d by which the sleeve e<SP>1</SP> is turned to adjust the rudder. The aileron and rudder connections may be reversed.
Patent GB-120899-A (GB)
Title: Improvements in Telegraphy.
Inventor: DIXON THOMAS BULLITT
IPC: H04L5/14
Filed: 1918-11-04
Abstract: 120,899. Dixon, T. B. Nov. 1, 1917, [Convention, date]. Duplex telegraphs.-The disturbing effects on the home receiving instrument, due to lack of balance between the main and artificial lines of a duplex system, are neutralized by the action of an opposing current or currents having the same time and energy factors as the disturbing current. In the arrangement shown in Fig. 1, a neutralizing coil 15 is rigidly attached to the signalling coil 14 and is shunted across an adjustable resistance 6 inserted between the right-hand key 1 and the usual adjustable resistance 7. The direction of the current through the coil is controlled by a switch 19. In a modification, the coils 14 and 15 are mounted on the same former and the coil 15 has only a few turns compared with the coil 14. The coil 15 is connected in series with a suspended coil in order that the circuit of the coil 15 may have the same self-induction factor as that of the circuit of the coil 14. In the modification shown in Fig. 4, two neutralizing coils 15f and 15f<1> are connected in series with inductances 15<g> and 15<h> and with reversing switches 20<a> and 20<b>. In the modification shown in Fig. 5, a single neutralizing winding 15 is employed adapted to be connected across either the resistance 6<a> or the resistance 6<b> by means of reversing switches 20<c> and 20<d>, one of which is closed when the other is open. The circuit of the winding 15 contains a condenser 15i adapted to be shunted by an adjustable resistance 15<j> in series with a plug switch 15k. In the modification shown in Fig. 3, a differentially wound relay 26 is provided with a disturbanceneutralizing winding 15<c> connected in circuit with an inductance 15d, a condenser 15e, and a reversing-switch, and in shunt to an adjustable resistance 6.
Patent GB-862793-A (GB)
Title: An improved hand-operated cultivating tool
IPC: A01B1/16
Filed: 1959-05-27
Abstract: 862,793. Planting tools. BOND, A. F. Dec. 23, 1959 [May 27, 1959], No. 18073/59. Class 6(2). A hand-operated, rotary cultivator comprises a shaft 1 provided with a hand grip 4 and a cranked handle 3 at its upper end and a spike 1a at its lower end. Four tines 6 fixed to the lower end of the shaft extend radially outwards from the shaft and have their lower, hooked ends terminating above the level of the spike 1a In use, the spike 1a is driven into the ground to anchor the device, which is then rotated with the aid of the handle 3, the tines being thereby made to cultivate the soil and hook up weeds. In a modification, the cranked handle is U-shaped, with a rotary cap at the top for one hand and a grip in the bend of the U for rotating the device with the other hand.
Patent GB-808419-A (GB)
Title: Liquid fuel control means for aircraft engines
Inventor: YOUNG JOHN MICHAEL CRISPIN
IPC: F02C7/22
Filed: 1955-06-23
Abstract: 808,419. Gas turbine plant. LUCAS (INDUSTRIES) Ltd., J. June 25, 1956 [June 23, 1955], No. 18164/55. Class 110 (3). [Also in Group XXIX] A liquid fuel control means for an aircraft jet-propulsion or turbine engine having a barometrically controlled throttle a in series with a manually operable throttle r in a main fuel passage c, comprises a passage v by-passing the throttles between the inlet and outlet of passage c and containing a restricted orifice w, a third throttle 7 connected to the manual throttle, and a servo-control valve 12 actuated in response to the pressure difference across the third throttle or the orifice, for controlling a servo mechanism adjusting the rate of supply of fuel by a pump (not shown) to the combustion chamber of the engine. An evacuated bellows n and a bellows o exposed to atmosphere actuate a hinged valve j controlling a leak-off from a cylinder b supplied with pressure from the by-pass via a restriction h whereby the pressure in chamber b positions the piston and valve a, follow-up between the valves a, being through the spring p. Thus valve a closes the main passage as atmospheric pressure falls with increasing altitude. The bellows 2 actuating a valve 12 controlling the leak off from the spring-loaded side of a piston (not shown) connected to passage 11 and supplied with pressure on the unloaded side and both sides being connected through a throttle, is exposed to the pressure difference across the throttle 7 controlling the end of the by-pass passage in the same way as the manual valve r, to which it is connected at 8, controls the main fuel passage t. If the bellows 2 is connected across the orifice w the valve 7 controls oppositely to valve r. Increase of pressure difference across throttle 7 moves the piston to reduce the delivery from a variable delivery pump, throttles the delivery or opens a valve by-passing the pump. In another embodiment the manual throttle r is placed upstream of the throttle a.
Patent GB-318331-A (GB)
Title: Improvements in television and telephotographic apparatus
IPC: H01J31/42
Filed: 1928-06-22
Abstract: 318,331. Roberts, C. E. C. June 22, 1928. Vacuum tubes.-In a television transmitter an optical image is projected by a lens L on to the photo-electric surface of a cathode K. The density of the electrons in the elementary pencils which form the stream E varies according to the intensity of illumination of the surface elements from which the pencils originate. The stream E is caused to oscillate in two dimensions by electromagnetic or electrostatic means so that the elementary pencils pass successively through the aperture a in the anode A, which thus constitutes the scanning aperture for the picture. The pencil emerging from the aperture falls upon an electrode C which is connected to the grid of a thermionic valve or other means for controlling the outgoing signals. In modifications, a wire passing through the aperture a may be substituted for the electrode C, (Fig. 3, not shown); or the apertured screen A may extend across the valve, a separate anode being provided either in front of, or behind it, (Fig. 4, not shown); or the incident light F may pass through a further aperture in the screen A, so as to fall on the cathode in a more nearly perpendicular direction (Fig. 5, not shown). The cathode may be rotatable so that the effective part of its surface is subject to continuous change (Fig. 7, not shown). In a further modification, Fig. 6, the pencil of electrons emerging from the aperture a may pass through an aluminium or other window g into an ionization chamber G. More than one simultaneous projection of the image may be made on photo-electric surfaces of the same or different materials and these projections may be used for the production of coloured images. According to the Provisional Specification the cathode stream from the picture may be encased in a more powerful stream which serves to generate synchronizing signals.
Patent GB-146294-A (GB)
Title: Improvements in magneto electric generators
IPC: H02K21/22
Filed: 1920-07-02
Abstract: 146,294. Quick Action Ignition Co., (Assignees of Oglesby, R. A.). Feb. 17, 1916, [Convention date]. Magneto-electric machines.-A circular permanent magnet 1, Fig. 1, having an air-gap 6 and soft-iron pole-pieces 2, is rotated outside one or more armatures 5 secured to a disk 16 which may be rocked round by a handle 25 to advance or retard the spark supplied to an internal-combustion engine. The armature has extended pole-pieces 3, the widths of which are such as to cause momentary short-circuiting of the magnet across a polepiece 3 before the rush of flux takes place through the armature core 4. The armature may be of the high-tension type, as shown, or of the lowtension type, the primary contact 23 being broken when a rotating cam 19 rides upon one arm 22 of a lever controlled by a spring 24; a condenser 26 is carried by the disk 16. A balance weight 31 may be secured to the magnet in the air-gap 6. For the ignition of a multi-cylinder engine, a number of armatures may the fixed to the disk as shown in Fig. 10, one half being cn one side of the disk and the other half on the other side; the two halves are in staggered relation with each other.
Patent GB-1171284-A (GB)
Title: Improved Diverting Apparatus
Inventor: SMITH JOHN HENRY WILLIAM
IPC: B41D5/00
Filed: 1966-04-26
Abstract: 1,171,284. Roller conveyers. J. H. W. SMITH, and J. R. SPENCER. 21 April, 1967 [26 April, 1966], No. 18233/66. Heading B8A. Apparatus for selectively diverting articles from one path of travel to another path of travel comprises a pair of spaced sets of rollers 13, 14 to advance said articles against a vertical displaceable stop 49 whereupon an electric circuit is completed to selectively drive a pair of spaced endless chains 33 with rods 48 extending therebetween in a direction transverse to said one path of travel to laterally displace to either side the article to said other path of travel. Alternatively, the chains 33 are not driven and on lowering of the stop 49 the articles will continue on said one path. The stop 49 is governed by cam means 49a, 50 at the lower end thereof driven from a common drive source in synchrnization with the rollers 13, 14 and a further cam 59, 61 controlling a stop 60 situated at the entrance to the apparatus to with-hold articles until the apparatus is clear. Disposed in front of the stop 49 is a plate 62 engageable by the articles and pivotal about an axis 64 whereby the lower end may close a switch 69 and through a three-way selector switch, not shown, energize the motor 47 driving the endless chains 33. The initial rollers of a conveyer means 74 to which the articles are fed are also driven in synchronization with the rollers 13, 14.
Patent GB-253854-A (GB)
Title: Process for improving artificial fibrous materials
IPC: D06M15/05
Filed: 1925-07-17
Abstract: 253,854. Lilienfeld, L. June 17, 1925, [Convention date]. Addition to 231,806. Yarns and threads, treating with liquids, gases, and vapours.-Artificial textile materials such as viscose silk, cuprammonia silk, denitrated nitrosilk. and acetate silk, are improved as regards their strength by treatment with a solution of a cellulose thiourethane in which at least one hvdrogen atom of the amino group is replaced by an alcohol radical; the preparations of and the manner of using such solution is described in the parent case and in 'Specifications 231,801. 248,246, [both in Class 2 (ii), Cellulose &c.], and 248,994. The material may be treated when in the form of threads, skeins, cops, &c., consisting of artificial textile material alone or mixed, with cotton, silk, wool, &c. The cellulose thiourethane solution may be applied by passage of the material therethrough, or by spraying, or by contact with moistened rollers, or by other methods; and the material may be passed through one or more pairs of rollers, or otherwise pressed, in order to distribute the solution uniformly. The impregnated material is afterwards treated with a precipitating agent or is dried preferably at a raised temperature, the method selected depending on the character of the solvent employed in making the original solution; or a combination of these methods may be employed. The material may be stretched during the impregnation process or afterwards, for instance, during the drying at a raised temperature. To render the treated material highly flexible it may be treated with the vapours of a solvent for the thiourethane or of an agent that imparts plasticity, for instance, to the vapours of aqueous pyridine.
Patent GB-482561-A (GB)
Title: Electronic power amplifier
IPC: H03F3/44
Filed: 1937-07-01
Abstract: 482,561. Valve amplifying circuits. KRAMOLIN, L. L. DE. July 1, 1937, No. 18338. Convention date, July 3, 1936. Addition to 415,079. [Class 40 (v)] An amplifier comprising two or more discharge paths, arranged in series, as described in the parent Specification, is further characterized by the feature that in a power or output stage the voltage drop across the lower electrode system is made smaller than that across the upper electrodes. This may be ensured by the provision of a space-charge grid to lessen the resistance of the lower set of electrodes. Or a lateral control electrode H, Fig. 2, may be provided to make the amplification-factor of the lower system less than that of the upper system. As shown in Fig. 3, a " virtual cathode " E is formed at E and co-operates with the upper control grid G and anode F, which are widely spaced apart. Both sets of electrodes may be contained in one glass tube.
Patent GB-328156-A (GB)
Title: Improvements in the purification of highly concentrated nitric acid
IPC: C01B21/46
Filed: 1929-06-14
Abstract: 328,156. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). June 14, 1929. Nitric acid.-Concentrated nitric acid is freed from sulphuric acid by adding oxides, hydroxides, carbonates, nitrates, &c. of di. or tri-valent metals which form nitrates soluble in concentrated nitric acid. These give insoluble sulphates which are precipitated. Suitable metals are magnesium, aluminium, iron, zinc, manganese, and nickel. Concentrated nitric acid may be freed from the above metals by adding sulphuric acid or soluble sulphates to precipitate their sulphates.
Patent GB-274119-A (GB)
Title: Improvements in wave collectors or antenn? for radio telegraphic and telephonic signals
IPC: H01Q15/20
Filed: 1927-07-11
Abstract: 274,119. Guillaix, M. July 9, 1926, [Convention date]. Aerials. - An aerial conductor is so constructed as to have the largest possible surface by the successive folding of one or more metallic strips and central apertures are provided for the insertion of a supporting cable. The strips may consist of smaller strips or bands themselves waved, plaited or twisted. The Figure shows two strips 8, 9 folded and having central apertures for the cable 1. The strips may be secured by washers 4 and a tube 2 clamped to the cable or by making the holes fit the cable tightly. Connection may be made by a clip attached to one of the strips or from the central cable when the latter is a bare conductor. The Specification, as open to inspection under Sect. 91 (3) (a) comprises also the use of cutting or insertion to obtain numerous surfaces in different planes. This subjectmatter does not appear in the Specification as accepted.
Patent GB-296516-A (GB)
Title: Improvements in or relating to high frequency electrical apparatus of the type employing multiple electrode vacuum electric discharge devices
IPC: H03D11/02
Filed: 1927-07-11
Abstract: 296,516. Brown, W. J., and Metropolitan-Vickers Electrical Co., Ltd. July 11, 1927. Thermionic generators and heterodyne receivers. -In valve apparatus for short waves an alternating potential is impressed on the grid of the valve and a negative, zero or slightly positive potential on the anode. The Figure shows a receiving valve 1 connected to an oscillatory circuit formed by conductors 3, 5, adapted to generate oscillations when a positive potential is applied to the grid. An oscillating valve 16 is connected to a tuned circuit 14, 15, the voltage across which is applied to the grid 4 of the valve 1 which consequently works as a super-regenerative receiver. Adjustment of the frequency of the circuit 14, 15 may, if the incoming signal is supersonically modulated, give a beat between the supersonic modulation and the quenching frequency to give an audible frequency as described in Specification 291,619. Specifications 250,748, 268,028 and 268,029 are referred to.
Patent GB-243418-A (GB)
Title: Improvements in and relating to paving and surfacing material
IPC: C04B20/10
Filed: 1924-08-01
Abstract: 243,418. Ramsden, C. E. Aug. 1, 1924. Continuous paving.-A green paving and surfacing material to be rammed or rolled with or without a binding medium and suitable for tennis courts and paths consists of granular material of low porosity coated or superficially impregnated with a colouring matter which is fixed or formea by a firing operation. The granular material may be crushed or ground flint, quartz, quartzite, ganister, sandstone, silica rock feldspar, Cornwall or china stone, slag, or other silicious material. The colouring matter may be chromium compounds such as chromate or bichromate of soda or potash; for example, 56 lbs. bichromate dissolved in 8 galls. water may be used per ton of flint. A reducing agent such as carbon, charcoal, or sulphur may be added to the crushed flint and an adhesive or thickening medium may be added to the chromium solution, and such medium may be of a reducing character. Starch, gum, glue, dextrine, or the like. may be used as the thickening medium. The mixture of granular material and colouring matter is burnt or fired and the product, which is only loosely aggregated. may be washed after cooling. The binding medium if used in laying the coloured granular material may be such as to produce a masts like. concrete or bituminous paving, or merely a low degree of adhesion such as in gravel. Suitable binding media are resinous, oily, or bituminous materials such as rubber, rubber latex, fatty oils, and oxidized, blown, or polymerized fatty oils, and the binder may be. applied as a solution or emulsion to the granular material before or after laying. As an example, 20 galls. of blown linseed oil or rubber latex may be used per ton of granular material. Specification 222,192 is referred to.
Patent GB-317583-A (GB)
Title: Devices for removing and replacing electric bulb lamps
IPC: H01K3/32
Filed: 1928-07-02
Abstract: 317,583. Grant, J., and Grant, W. H. July 2, 1928. Reachers.-A device for removing and replacing electric lamps comprises cushion screws C carried by a felt lined split ring B of springy material mounted on arms A<1> of a tube A of similar material. An adjustable cushion buffer L is provided and this may also be used as in Fig. 3 to remove broken lamps. A cord E attached to each end of the ring B and passing freely through bushes F in the opposite ends may be used to increase the grip. A fork-member mounted at right angles on the end of a rod may be used to withstand the upward pressure on freely suspended lamp-holders.