baber/WOPTO huggingface dataset:
Patent GB-858902-A (GB)
Title: Improvements in or relating to hydraulic pumps
IPC: F04B49/22
Filed: 1957-03-15
Abstract: 858,902. Reciprocating pumps. BOCHUMER GESELLSCHAFT FUR GRUBENAUSBAU UND TECHNIK. March 15, 1957 [March 19, 1956], No. 31835/60. Divided out of 858,901. Class 102(1). A reciprocating pump comprises radially arranged pistons and cylinders in a housing 2, which are reciprocated relatively to one another by an electric motor 43. Each cylinder is provided with a non-return inlet valve and the inlets are throttled by a rotatably adjustable valve plate 54 in direct dependence on the power input to the motor 43. The valve plate 54 is rotated in the required direction by a motor 63 actuated by a relay 65 operated by leads 66 from a power meter 68 connected to the motor 43 by leads 67. The power meter has a pointer 69 which moves over a scale 70 as the power input to the motor 43 varies and when this contacts either of the detectors 71, 71a the relay 65 is operated to actuate the motor 63 to rotate the valve plate in the required direction to control the throttle opening which is variable between a maximum and 5% of this value. Instead of the contacts 71, 71a photo-electric cells may be provided.
Patent GB-729589-A (GB)
Title: Improvements in or relating to voltage reference networks
IPC: H02P9/32
Filed: 1952-12-16
Abstract: 729,589. Automatic voltage-control systems. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Dec. 16, 1952 [Dec. 22, 1951], No. 31840/52. Class 38 (4). In an automatic voltage-control system for an alternator in which the field of an A.C. exciter is controlled by a magnetic amplifier in response to the difference between the alternator voltage and a reference voltage, the reference voltage is produced by a saturable choke with a permanent magnet bias which is arranged to pass a constant current from a variablevoltage source. The alternator 10 is excited over rectifier 34 from an A.C. generator 28, the field of which is energized via transductor 110, 112 and rectifier 126 from the output of an auxiliary A.C. generator 40. Transductor 110, 112 is controlled by a transductor 88, 90, the input to which is the resultant of the opposed voltages across resistors 84, 86. A voltage proportional to the rate of change of field current of generator 28 is obtained from resistor 130 and transformer 132 and also controls transductor 88, 90. Across resistor 84 there is a voltage proportional to alternator output obtained from potential transformers 78, 82 and rectifier 60. Across resistor 86 is a constant reference potential obtained by rectifying the voltage drop across an adjustable resistor 76. This is energized from the alternator output via a saturable choke 68 which, due to its permanent magnet bias, passes a constant current over a limited range of input voltages. In a modification, Fig. 2 (not shown), the output of a threephase rectifier connected to the three-phase alternator output is used instead of the output of the single-phase rectifier 60.
Patent GB-409773-A (GB)
Title: Improvements in or relating to the production and use of diphenyl derivatives
IPC: C07G99/00
Filed: 1932-11-10
Abstract: Wetting, cleansing and penetrating agents suitable for use in the treatment of textiles, leather and other fibrous materials are obtained by condensing a hydroxydiphenyl with an alcohol and treating the product with sulphuric acid.  The wetting &c. agents may be used in carbonising, mercerising, cleansing and sizing, in impregnating textiles with latex and in bleaching with sodium hydrosulphite.  In an example, a mixture of o- and p-hydroxydiphenyl is condensed with n-butyl alcohol and after sulphonation, neutralised with sodium carbonate, caustic soda or caustic potash.  In a similar manner, products obtained by condensing the following diphenyls and alcohols are sulphonated, i-propyl, i-butyl and n-amyl alcohol with a mixture of o- and p-hydroxydiphenyl, n-butyl alcohol and p-hydroxydiphenyl and n-butyl alcohol and o-hydroxydiphenyl.  The condensation and sulphonation of the following compounds is also mentioned, cyclohexanol, benzyl alcohol and octyl alcohol with a mixture of 85 per cent o- and 15 per cent p-hydroxydiphenyl and n-butyl alcohol with the crude hydroxydiphenyl obtained as a residue on distilling phenol prepared by the benzene sulphonation-fusion process.
Patent GB-911715-A (GB)
Title: A device for the remote indication of the liquid level in containers
IPC: B65D90/48
Filed: 1960-09-15
Abstract: 911,715. Indicating liquid levels. VANDONI, R. Sept. 15, 1960 [Sept. 15, 1959], No. 31871/60. Class 123 (1). In a device for remotely recording the level of liquid in a tank 14 and also providing high and low level alarms three small-bore copper tubes 11-13 extend from within the tank to a recording instrument 10. The pressure within the pipe 12 is transferred to a gauging- liquid reservoir 19 in the instrument casing 15 communicating, through a pipe 20, with an indicating chamber 21 the front wall of which is formed as an instrument dial 16 having a zig-zag logarithmic scale 17. The temperature of the gauging liquid, consisting, e.g. of coloured oil, is maintained constant by a heater 22 which is carried by the wall of the chamber 19 and is preferably thermostatically controlled, an expandible compensating chamber 23, under the influence of bimetallic rods 26, equalizing temperature fluctuations in the indicating chamber 21. The pipes 11, 13 communicate respectively with overflow and low-level warning devices 32, 31 in the casing the mouth 35 of the pipe 11 being fitted with a float-operated clock valve 36. The warning devices 31, 32 incorporate membranes, not shown, for actuating warning discs 37, 38 which may have associated mercury contacts for audible warning means. A magnetically-controlled valve 34 for opening or closing a branch pipe 33 leading from the pipe 13 is actuated by an oil burner, not shown, and branch pipes 40, 41 leading respectively from the pipes 13, 11 are controlled by the plate of a valve 42.
Patent GB-429331-A (GB)
Title: Improvements in belt conveyors
IPC: B65G39/16
Filed: 1934-11-06
Abstract: 429,331. Endless belt conveyers. NAYLOR BROS., Ltd., and NAYLOR, W., Bank Street, Golborne, Lancashire. Nov. 6, 1934, No. 31872. [Class 78 (i)] Mechanism for automatically maintaining the position of the belt comprises brackets 3, 9, 10 which are mounted to rotate about vertical axes and connected by links 11, and the central one of which carries an arm 4 supporting a roller 5 in such a position that it is engaged by the edge of the belt when the latter is deflected.
Patent GB-669561-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of cigarettes which have mouthpiece portions such as filter plugs
IPC: A24C5/52
Filed: 1948-12-09
Abstract: 669,561. Cigarette-making machines. MOLINS, D. W., RUAU, F. F., and MOLINS MACHINE CO., Ltd. Dec. 8, 1949 [Dec. 9, 1948], No. 31913/48. Class 130. [Also in Group XXX] In a cigarette-making machine wherein a continuous tobacco filler is fed to a device 19 which forms spaces in the filler and inserts stubs therein, the tobacco showered on to a conveyer 2 is passed through an arcuate shroud 6 and fed as a loose stream by a paddle wheel 5 on to a conveyor 4 which carries it into a confining passage 7 and delivers it on to a more slowly moving band 10,' whereby the tobacco stream is compacted endwise in the passage 7. The compacted stream, compressed into cylindrical shape by rollers 16, 17, passes to an intermittently rotating fluted drum 19 which inserts the stubs as described in Specification 669,557, the resulting composite filler passing on to a cigarette-paper web 21 which is wrapped therearound by a garniture 23 to form a composite rod. Specification 440,182 also is referred to.
Patent GB-762440-A (GB)
Title: Arrangement for preventing the after-glow of the steady luminous spot after the switching-off of television sets employing cathode-ray tubes
IPC: H04N3/20
Filed: 1954-11-05
Abstract: 762,440. Cathode-ray tube circuits. STANDARD TELEPHONES & CABLES., Ltd. Nov. 5, 1954 [Dec. 14, 1953], No. 32046/54. Class 40(7) Switch S2 closes when the main supply switch S1 is opened and raises the potential of the grid of cathode-ray tube B (normally determined by brightness potentiometer Pl) towards the cathode potential whereby the increased beam current rapidly discharges the capacity of the tube's anode supply and causes the fluorescent spot to disappear before the scanning circuits have ceased to operate. The arrangement prevents damage to the screen of the tube due to a stationary spot persisting whilst supply circuit capacities discharge and the tube cathode cools. In a second embodiment, Fig. 2 (not shown), the switch is arranged to remove a short-circuit from across a resistor included between the end of the brightness potentiometer and earth so as to cause the grid potential to rise towards H.T. In a third embodiment, Fig. 3 (not shown), the video stage V is directly connected to supply the cathode-ray tube grid instead of the cathode as shown in Fig. 7 (not shown), and the switch is arranged to open the circuit of the brightness potentiometer, which is here connected to the cathode, so that the cathode falls to earth potential whilst the grid remains at the anode potential of the video stage. The switch may be operated by a relay the winding of which is included in the tube heater supply circuit.
Patent GB-767865-A (GB)
Title: Improvements in or connected with boxes or containers
Inventor: CHAMP ARTHUR CLAUDE
IPC: A63H13/20
Filed: 1954-11-05
Abstract: 767,865. Containers; boxes. WYATT & CO., Ltd. Oct. 17, 1955 [Nov. 5, 1954], No. 32082/54. Classes 18 and 66. [Also in Group XV] A container or box 1 is mounted so as to rotate on an additional base 6 and may be decorated to represent a merry-goround. The push-on lid 2 has a part 3 formed as a truncated cone.
Patent GB-409423-A (GB)
Title: Improvements in the manufacture of varnishes, lacquers, paints and like surface coating compositions
IPC: C09D101/18
Filed: 1932-11-14
Abstract: Coating-compositions are made by dissolving a resin, gum, drying oil, nitrocellulose or other film-forming material in a vehicle consisting of a hydroformed solvent made by destructive hydrogenation in the vapour phase of a hydrocarbon.  The solvents are made by treating hydrocarbons boiling below 650 DEG  F. in vapour phase with hydrogen at 930--1050 DEG  F. under a pressure of preferably 50--200 atmospheres and in the presence of a catalyst consisting of the oxides or sulphides of metals in the VI group mixed with alkaline earth oxides as promoters.  The resulting hydroformed oils are distilled to yield the desired fraction boiling about 122--320 DEG F.  The hydrocarbons treated may consist of petroleum distillates such as gas or burning oils from California or naphthenic base crude oils, or oils derived by extracting distillates with sulphur dioxide, or phenol.  The hydroformed solvents may be mixed with or replace benzene, toluene, xylene or turpentine in paints, varnishes or lacquers; or in admixtures with aliphatic ketones, alcohols such as amyl, butyl, and isopropyl alcohol, or their esters to form a vehicle for cellulose ester lacquers.  For examples, a lacquer is prepared by dissolving nitrocellulose in a vehicle consisting of hydroformed solvent, butyl acetate, butyl alcohol, ethyl acetate and dibutyl phthalate and/or castor oil.  Ester gum or phthalic-glyceride resins may be added.  A varnish is made by mixing gum dammar or kauri gum, rosin, linseed oil, and tung oil with lime, lead oxide and hydroformed solvent.  Turpentine and pigments may be added. Specification 261,039, [Class 95], is referred to.ALSO:Coating-compositions are made by dissolving a cellulose ester in a vehicle consisting of a hydroformed solvent made by destructive hydrogenation in the vapour phase of a hydrocarbon, and distilling the resulting oils to produce a fraction boiling about 122--320 DEG F.  The hydroformed solvents may be used in admixture with aromatic solvents such as benzene, toluene or xylene or with aliphatic ketones, alcohols such as amyl, butyl, isopropyl alcohol or their esters, to form vehicles for lacquers. For example, a lacquer is prepared by dissolving nitrocellulose in a vehicle consisting of hydroformed solvent, butyl acetate, butyl alcohol, ethyl acetate and dibutyl phthalate or castor oil.  Ester gum or phthalic-glyceride resins may be added together with turpentine and pigments. Specification 261,039, [Class 95], is referred to.
Patent GB-211250-A (GB)
Title: Improvements in and appertaining to firelighters, fuel briquettes and the like
IPC: C10L11/04
Filed: 1922-11-25
Abstract: 211,250. Gardner, D. Nov. 25, 1922. Composition fuel. - A firelighter or f u e l briquette comprising tiers of bars a, b, is constructed from a. single block of material, one or more channels or draught courses being cut from or formed in both the upper and lower faces of the block, the upper and lower channels being at right-angles to and in communication with each other. The firelightes may be cut from a wooden block and dipped in inflammable liquid or may be moulded from a mixture of combustible materials such as coal dust, sawdust, paper, chippings, tar, resin, and paraffin. The Provisional Specification describes a firelighter made up of separate bars nailed or otherwise secured together. Reference has been directed by the Comptroller to Specifications 11355/02 and 7441/05.
Patent GB-916888-A (GB)
Title: Improvements in and relating to the epitaxial deposition of semi-conductor material
IPC: C30B25/02
Filed: 1960-09-20
Abstract: 916,888. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Sept. 20, 1960 [Dec. 31, 1959], No. 32266/60. Class 37. [Also in Group II] In a method of making a semi-conductor with a narrow PN junction (e.g. a tunnel diode) by the deposition of for instance N-type germanium on a substrate of, for instance, P-type germanium, a halide decomposition process is used (see Group II). The process is carried out in a closed container which has three zones which can be temperature-controlled by coils 2a, 2b and 2c. In a first period of time the substrate is etched by the carrier (e.g. iodine) which also attacks the source 3. In a second period of time germanium is deposited on the substrate from vapour 6. Specification 916,887 is referred to.
Patent GB-767781-A (GB)
Title: A process for unloading projectiles containing fusible explosives
Inventor: LOUIS GASTON
IPC: F42B33/06
Filed: 1954-11-08
Abstract: 767,781. Breaking-up shells. INDUSTRIAL DEVELOPMENT CO. (ESTABLISHMENTS). Nov. 8, 1954, No. 32323/54. Class 9 (2). To recover fusible explosive from shells, a heating device is introduced into the shell, the heating means being either an electrical resistance or tubes circulating hot fluid, which fluid may be oil, water or steam. Fig. 1 shows an electric heating device comprising a resistance wire, e.g. of chromo-nickel, mounted on a refractory support B, and housed in a cylindrical steel tube C soldered to an angle-iron D, which is fixed on a support M. The angle-iron D may be replaced by other shapes of irons or a cone or funnel may be used for the iron D. An inoxidizable material, not attacked by the explosive, such as aluminium alloy, may be used to coat the tube C and iron D. The projectile P, its fuze and booster having been removed, is inverted over the device with the end of the tube C in the neck of the shell. A heat-insulating cap F of fibreglass or other suitable material is then placed over the shell, the shell being free to descend as the explosive flows into a receiver H, and the circuit, which contains a thermostat G, is completed. By means of the thermostat the temperature of the device is maintained at the level appropriate to the nature of the explosive. Coincidence of a mark I on the tube C indicates that the shell is empty. A stop pin may be used instead of the mark I. Mechanical, pneumatic or hydraulic means may be used to control the descent of the shell. The tube C is not necessarily cylindrical, but may be of square, hexagonal or other section. Several shells may be emptied simultaneously as in Fig. 3, the operation being carried out in a chamber K divided by blast walls J into compartments each housing a shell and heating device. Thermocouples in conjunction with a photo-electric cell L may be used to switch off the current should the temperature of the projectile P or explosive T rise beyond a given limit. The photo-electric cell automatically switches off the current as the chamber K is entered.
Patent GB-221403-A (GB)
Title: Improvements in propeller or like pencils
IPC: B43K21/08
Filed: 1923-12-27
Abstract: 221,403. Bina, F. C., and Barrey, F. F. Dec. 27, 1923. Pencil holders.-In a pencil holder the propelling-mechanism is supported independently of the barrel and cap by means of a nozzle detachably secured to the front end of the barrel and through which the lead is propelled by rotating the barrel relativelv to the nozzle. The rear end of the barrel, which is formed of a plain tube 2, is closed by a screw cap 5 to provide, if desired, a receptacle for refills. Screwing into the front end of the barrel is a flanged part 6 of of the nozzle, to which is secured the lower end of a coiled wire or flat strip of metal 7. Rotatably mounted on the spiral 7 is a slotted tube 8 secured to the pointed section 9 of the nozzle, which is rotatable relatively to the part 6, the tube 8 being prevented from downward movement through the spiral by a shoulder or a washer 14. The lead propeller 10, which may be in the form of a piece of wire, or of a tube split at the front end to grip the lead, is slidably mounted in the tube 8, and is provided at its upper end with two lugs 12, 13 projecting through the slot in the tube between adjacent coils of the spiral 7. The pointed section 9 of the nozzle may be split to grip the lead.
Patent GB-535800-A (GB)
Title: Improvements in or relating to the floating of fluorspar values from fluorspar ore
IPC: B03D1/02
Filed: 1939-12-15
Abstract: 535,800. Concentrating ores. ALUMINUM CO. OF AMERICA. Dec. 15, 1939, No. 32326. Convention date, April 19. [Class 82 (ii)] Fluorspar values are floated from ground fluorspar ore by a process in which an initial fluoride-lifting froth at a relatively low hydrogen ion concentration is followed by a succeeding frothing operation at a higher hydrogen ion concentration on the concentrate from the first operation. The ore is crushed to pass a screen of 65 meshes to the inch pulped with water, and mixed with a collector such as oleic acid or sodium oleate, the pH value is adjujsted to about 9 to 10.5 by addition of an alkali, and the pulp heated by steam to 30‹ to 50‹C. A depressor for calcite such as tannic acid and a clay disperser such as sodium silicate are added if desired. The mixture is agitated and aerated and the fluorspar-bearing froth is collected and re-pulped with water and is acidified prior to aeration to a pH value of 6.4 to 7. This operation may be repeated 90 to 95 per cent. of the calcium fluoride being recovered in the final concentrate. Specifications 319,685, [Class 82 (ii)], and 392,664 are referred to.
Patent GB-284972-A (GB)
Title: An improved reversible cuff or the like
IPC: A41B7/10
Filed: 1927-12-01
Abstract: 284,972. Chorlton Bros., Ltd., and Davidson, G., H. Dec. 1, 1927. Shirt cuffs.-A reversible shirt cuff is made by taking a previously prepared piece of material of which the ends have been turned in to form the ends of the cuff, folding the piece longitudinally. as shown in Fig. 5, seaming the layers together at h approximately along the centre, and attaching one of the five flaps p to the shirt sleeve. The other flap p<1> remains free to occupy the position shown in Fig. 5, or to be turned together with the lower half of the cuff about the seamed line h to occupy the position shown in Fig. 1.
Patent GB-306994-A (GB)
Title: Process for obtaining creams and pastes from aqueous dispersions of rubber or rubber-like materials
IPC: C08L7/00
Filed: 1927-12-01
Abstract: 306,994. Dunlop Rubber Co., Ltd., and Davies, R. C. Dec. 1, 1927. Latex, treating ; indiarubber compositions. - Cellulose xanthate gel is added to rubber &c. latex or aqueous dispersions of rubber &c., with agitation or stirring until the mixture creams and becomes viscous. The xanthate should contain 25-30 per cent of cellulose and may be added in varying amounts in the form of a rubber-like mass containing a minimum amount of water, 10 per cent producing a final product which is elastic, while 50 per cent, calculated on the dry rubber content, produces leather-like products. Stabilizers, protective colloids, fillers, dyes, vulcanizing agents, anti-ageing compounds, softeners, &c. may be added either to the gel or dispersion, or to the cream during or after formation. The cream may be used in operations involving moulding, dipping, spreading, spraying, extrusion, impregnating, and, after thinning, for electrophoretic processes. The cream may also be milled into rubber, serving as a medium for the introduction of cellulose xanthate or ingredients such as carbon black into the mix. The cream may also be coagulated in the usual manner.
Patent GB-1190998-A (GB)
Title: A Cooling Medium Admission Hot Blast Fitting
IPC: C22C21/00
Filed: 1967-07-14
Abstract: 1,190,998. Valves. SIEGERLANDER KUPFERWERKE G.m.b.H. 14 July, 1967 [14 July, 1966,], -No. 32424/67. Heading F2V. [Also in Division C7] A slide valve plate for use in a hot blast producer comprises a hollow disc 1 to which cooling water is fed through inlet 2, is led to the centre of the plate by pipe 3, leaves the central area by slits 5 in wall 4, is guided radially outward by ribs 6 and leaves the plate by outlet 7. The plate is made of an Al-Ti alloy containing at least 0À15% titanium (see Division C7).
Patent GB-279675-A (GB)
Title: Improvements relating to the mounting of instruments and the like on motor vehicles
IPC: B60K37/02
Filed: 1926-12-22
Abstract: 279,675. Lucas, Ltd., J., Lucas, 0., and Egginton, W. H. Dec. 22, 1926. Clocks and recording instruments, mounting.-The intermediate plate in the device described in !Specification 257,446 is formed with tongue pieces b, d, the former for fixing the plate relative to the glass cover and the, latter for,fixing it relat.ive to the carrier plate.
Patent GB-511736-A (GB)
Title: Improvements in optical systems for stereoscopic recording apparatus having a double objective
IPC: G03B35/10
Filed: 1938-11-09
Abstract: 511,736. Steroscopic optical systems. ZEISS IKON AKT.-GES. Nov. 9, 1938, No. 32549. Convention date, Nov. 19, 1937. [Class 97 (i)] Two objectives 2, 3 of a stereoscopic camera are mounted in a common rotatable holder 1 by rotation of which the plane of convergence of the viewing directions can be obtained without appreciable displacement of the images in the direction of a line joining the centres of the objectives. When used for example to record side-by-side images on horizontally running film 5 using prisms 6 and 7, a rotation of the holder produces a longitudinal displacement of the images in opposite directions, to vary the plane of convergence but the accompanying transverse displacement is negligible. The holder 1 is geared to a disc 4 which indicates' the distance of the plane of convergence. The adjustment of the holder 1 may be coupled to the focusing adjustment.
Patent GB-1302269-A (GB)
IPC: C07C7/163
Filed: 1970-07-06
Abstract: 1302269 Purifying olefins PRODUITS CHIMIQUES PECHINEY SAINT GOBAIN 6 July 1970 [7 July 1969] 32591/70 Heading C5E [Also in Division B1] Unsaturated impurities, for example diolefins and acetylenes, present in a gaseous mono-olefin, for example ethylene, are selectively hydrogenated in the presence of a catalyst which comprises (a) support material having a surface area of up to 150 m.<SP>2</SP>/g. and comprising alumina and, optionally, silica, (b) from 100 to 800 weight parts per million of palladium, (c) from 50 to 1000 weight parts per million of vanadium and, optionally (d) material selected from copper, silver, gold, chromium, molybdenum, tungsten, iron, cobalt, nickel, ruthenium, rhodium and rare earth metals. Examples relate to the selective hydrogenation of acetylene impurity present in ethylene