baber/WOPTO huggingface dataset:
Patent GB-802267-A (GB)
Title: Gyromagnetic resonance magnetometer and gradiometer
Inventor: VARIAN RUSSELL HARRISON
IPC: G01R33/022
Filed: 1955-07-04
Abstract: 802,267. Magnetic tests. VARIAN ASSOCIATES. July 4, 1955, No. 19297/55. Class 37. A magnetometer operating by gyro magnetic resonance comprises two volumes 3, 4, Fig. 1, of an appropriate material such as an alkali metal in ammonia or diphenyl-pictyl-hydrazyl in lengths of waveguide 16, 17 disposed in local magnetic fields acting respectively with and against the field to be measured. These lengths of waveguide form parts of magic T's controlling a retro-active path of Klystron oscillators such as 25, the arrangement being that the oscillators do not oscillate until the " noise " at the larmer frequency in the specimens unbalance the magic T which then provides feed-back so that the Klystrons continuously generate oscillations at the gyromagnetic resonance frequency. The outputs are applied to a mixer and the beat frequency is used as an indication of field strength. As shown in Fig. 4 gradient, rather than field strength, can be measured with the aid of two magnetometers a fixed distance apart in a line parallel with the direction of the unknown field. The individual magnetometers operate in the same way as those in Fig. 1, but the local fields are provided by permanent magnets with high permeability polepieces and coupled by yokes of high remanence and one of the magnetometers has an adjusting member 120 for balancing purposes. The beat-frequency currents from the two magnetometers are mixed at 131 and the resulting beat frequency indicates the magnetic gradient. In another arrangement, Fig. 3 (not shown), magnetometers at different positions on the earth's surface transmit their output signals by radio to a central station at which they are compared by heterodyning with the output of a local magnetometer. A stable oscillator at the central station provides a standard.
Patent GB-691097-A (GB)
Title: Improvements in or relating to a control for a power operated machine
IPC: H02P29/00
Filed: 1951-08-16
Abstract: 691,097. Controllers. LONG CO., W. E. Aug. 16,1951 [Oct. 30, 1950], No. 19347/51. Class 38(iii) [Also in Group II] A control for a power operated machine such as a mixer includes a power cut-off, a timer for the cut-off, a load measuring device including an instantaneous load indicator and a peak load indicator and means effective upon separation of the indicators for setting the timer in operation. As described, for automatically stopping a dough mixer at the correct stage of gluten development, there is provided a load measuring device 19, such as a watt meter, having an indicating pointer 18 and a friction pointer 20 which carry contacts 21, 22 in the circuit of a solenoid switch 16. When the load on the mixing machine drops the contacts 21, 22 open, thereby closing the switch 16 and setting into operation a timer 14. If the contacts 21, 22 remain open for a period selected in setting the timer, the timer will close the circuit 15 for a solenoid coil 13 and open a switch 12 in the circuit of the motor 10, but if the contacts 21, 22 close before this period of time has elapsed the switch 16 will again open and the timer 14 will reset for another operation and this will continue as the indicating pointer vacillates until the contacts 21, 22 remain open for the required period. In an alternative embodiment, Fig. 2 (not shown), the load measuring device acts through an intermediate power device, such as a servomechanism.
Patent GB-308130-A (GB)
Title: Improvements in and relating to machines for washing bottles, jars and the like receptacles
IPC: B08B9/36
Filed: 1928-07-04
Abstract: 308,130. Powley & Sons, Ltd., R., and Powley, M. July 4, 1928. Bottles, jars, and the like, washing, - Each bottle, placed in turn upon a tray 16, is fed automatically into the machine to pass over a rotating brush 5, and is then moved transversely for engagement externally with brushes 1, 1<a> and finally discharged on to a tray 16<a>. The brushes 1, 1<a>, driven by means of a belt 11<a> from a shaft 10, are partly immersed in water in a tank 4. The brushes 5 are carried by spindles 5<a> provided with pulleys 8 so that they can be driven by a common belt 9 from the shaft 10. The spindles 5<a> are supported rotatably by discs 6 on a shaft 7. The discs are intermimently rotated by means of a crank 11 driven from a shaft 12 and provided with a roller for engagement with recesses 13<a> in a wheel 13 secured to the shaft 7. Each bottle placed on the tray 16 is drawn over the adjacent brush 5 by means of an arm 17 secured to a slide rod 17<a> which is moved, against the action of a spring 19, through the medium of an arm 18 having a pin.and-slot connection with an eccentric 20 on a shaft 20<a>. The bottle during its inward movement engages one of a number of centring members 15 fixed to slide rods 15a. The bases of the bottles are supported in recesses 14<a> on a wheel 14 fixed to the shaft 7 so that the bottles move in a circular path with each partial revolution of the shaft 7. The brushes 1, 1<a> engage the outside of the adjacent bottles during pauses in the intermittent movement. As each bottle comes to rest in alignment with the tray 16<a>, it is ejected from the corresponding brush 5 by a centring member 15, the slide rod of which is moved outwardly by means including an arm 21 and an eccentric 22.
Patent GB-530864-A (GB)
Title: Improvements in processes for cooling and evaporating liquids by direct contact withair and other gases
IPC: B01D1/14
Filed: 1939-07-04
Abstract: 530,864. Cooling and evaporating liquids by direct contact with gases. SYMONDS, E. S. July 4, 1939, No. 19465. [Class 64 (i)] In a liquid cooler or evaporator, using air &c. as the cooling medium, two or more aircurrents, 7, 8, Fig. 1, each flow through part only of the cooler, the liquid, passing in continuous flow, making contact with one air current after another. The air entering at 7 passes through the filler layer 2 in the same direction as the liquid, while that entering at 8 passes through a layer 3 in the opposite direction. In a modification the fan 9 is replaced by a chimney draught. A further modification comprises counter-current flow in each stage, air being prevented from passing through the intermediate trays 11, 12, Fig: 4, by siphons 13, or other means which do not obstruct the liquid flow.
Patent GB-629407-A (GB)
Title: Improvements in or relating to apparatus for measuring electrically properties of powdered, granular and like materials
IPC: G01N27/22
Filed: 1946-06-28
Abstract: 629,407. Capacitance measurements. MARCONI INSTRUMENTS, Ltd., and HAMPSON, J..A. June 28, 1946, No. 19467. [Class 37] A cell structure for use in making repeated measurements of electrical properties, particularly the dielectric constant, of powdered or granular materials, comprises two compartments in communication with one another, at least one compartment being fitted or formed with electrodes. As shown in Fig. 2, two compartments 14, 15 of insulating material are formed with a keyway slide 10 so that one can be slid on the other. Each compartment is provided with internal electrodes 6, 7, 8 constituting electrodes of a guarded condenser to which connections may be made through contacts 16. The cell is adapted to be mounted in a holder 17 having contacts positioned to co-operate with the contacts 16 of whichever compartment is inserted therein. The compartment 15 is formed at its lower end with a constriction 18 forming a communication between the two compartments. The compartment 14 is dimensioned to act as a scoop or volumetric measuring unit. The two compartments are separated and the lower compartment 14 filled with the material to be tested. The compartment 15 is then slid into position, its end face levelling off excess material in the compartment 14. The cell is then placed in the holder 17 and a capacitance measurement taken. The cell is then removed, inverted, replaced with the compartment 15 downwards and another measurement taken. In modifications the constriction 18 is replaced by a tap or cook operated by hand or mechanically. Air ducts may be provided to facilitate the release of air from the bottom compartment to the top during the flow of the material. In another modification, one compartment is wider than the other, allowing greater spacing of the electrodes therein. In the construction shown in Fig. 10 the two compartments 31, 32 are of metal and constitute electrodes co-operating with electrodes 34, 35 which are mounted on central pillars 36 to constitute guarded condensers. The compartments communicate through a constriction 28 controlled by a pistontap 29 which is biassed by a spring 30 to the closed position.
Patent GB-1312655-A (GB)
Title: Light-sensitive copolyesters
IPC: C08F2/00
Filed: 1970-04-23
Abstract: 1312655 Cinnamylidenemalonate esters EASTMAN KODAK CO 23 April 1970 [23 April 1969] 19542/70 Heading C2C [Also in Divisions C3 and G2]  Diethyl cinnamylidenemalonate is obtained by condensing cinnamaldehyde with diethyl malonate in the presence of piperidine in methylene chloride as solvent. The product is purified (>99% pure) by stripping off solvent and distilling in vacuo. The corresponding dimethyl ester is made by condensing cinnamaldehyde with dimethyl malonate in the presence of piperidine, quinoline, cinnamic acid and a molecular sieve, in benzene solution. It is obtained in a purity greater than 99% by crystallization from methanol.
Patent GB-1145384-A (GB)
Title: Improvements in or relating to phototypesetting apparatus
IPC: B41B27/28
Filed: 1966-05-03
Abstract: 1,145,384. Photographic type-composing apparatus. HARRIS -INTERTYPE CORP. 3 May, 1966 [7 May, 1965], No. 19575/66. Heading B6W. [Also in Division H2] In a photographic type-composing apparatus of the sort disclosed in Specification 1,008,146 a stepping motor, 57, Fig. 1, has an output member movable in equal steps, for the transport of film 130, under the control of digital spacing information; a first circuit 55 directs this spacing information as control pulses to motor 57; a selectively operable energy absorbing mechanism is connected to the motor output member for retarding movement thereof and a second circuit 185 operates the energy absorbing mechanism in response to the cessation of digital spacing information. Spacing pulses from space computers 145, justification computer 48 or tabulate control 175 are transmitted to motor 57 and also to OR gate circuit 180, where they establish a D.C. level. When the pulses stop this level drops and a signal passes over line 182 to circuit 185 (including a multivibrator circuit) which produces a single pulse to energize coils 220, Fig. 6. These coils on armature 215 thus form a magnet which then moves on spring plate 217 against brake disc 210. The time constants of the brake control circuit may be such that the pulse delivered to the coils has a short rise time but a longer decay time to enable the stepping motor to reach its proper position.
Patent GB-796722-A (GB)
Title: Burning of limestone
IPC: C01B32/50
Filed: 1956-06-25
Abstract: Limestone is burnt in continuous vertical kilns by heating with a liquid or gaseous fuel, and characterized in that a quantity of solid fuel, preferably coke, is added to the limestone, such that the amount of heat supplied by the solid fuel is greater than 10 per cent, preferably 20-30 per cent, of the total heat consumed. The carbon dioxide content of the issuing gas is greater than if no solid fuel were added.  Thermal efficiency is increased.
Patent GB-1087429-A (GB)
Title: Filter web
Inventor: HARTMANN KARL
IPC: B01D39/08
Filed: 1965-05-10
Abstract: A filter web consists of monofils or multifilament twisted threads woven, or knitted, or of extruded mesh fabric of synthetic resin, the web being flocked on one or both sides after being provided with a binder.  The web may be calendered after being flocked.  The material of the threads may be polyamides, e.g. polycaprolactam, polyurethanes, polyesters, polycarbonate, polyvinyl cyanides, polyvinyl chlorides, polyvinylidene chlorides, and polyolefines.  The binder may be a flock adhesive, e.g. based on polyacrylamide, and may be applied by spraying, dipping or with a wiper blade or spatula. Air may be blown through the web immediately after application of the adhesive to preserve the porosity.  Flocking may be performed by mechanical, electrostatic, or combined methods.  Application of a polyamide flock is described.  Fibre flock may be striated before the adhesive dries.  The monofil fabric may be fixed by heat on a tentering frame.
Patent GB-389500-A (GB)
Title: Suspensions and methods of producing same
IPC: A23L29/20
Filed: 1931-07-08
Abstract: Stable suspensions of insoluble solids are obtained by distributing throughout a liquid discrete and discontinuously associated particles of gel, such particles maintaining the solids in suspension.  Liquids such as fruit juices may be treated in this way to secure uniform distribution of the solid particles from the fruit.  Gels may be made from agar, gelatine or pectin, and may be rendered more elastic by addition of sugar or glycerol. The gel may be made separately and then dispersed in the juice; or the gel-forming substance may be added, with agitation, to the liquid which contains substances causing gel formation.  Or an agar solution heated to 40-45 DEG  C. may be added to a fruit juice mixture at 20 DEG  C. with rapid agitation.  Specification 284,278, [Class 14 (ii), Beverages &c.], is referred to.ALSO:Stable suspensions of substantially insoluble solids in liquid media are obtained by distributing throughout the medium discrete and discontinuously associated particles of gel, such gel particles being adapted to maintain the solids in suspension in the liquid.  Liquids containing plant juices and plant solids such as citrus fruit juices, berry juices, and tomato juice may be prepared in this way, the solids being evenly distributed throughout the juice.  Gels may be made from agar, gelatin, and pectin.  Sugar or glycerol may be added to give greater elasticity.  The gel is made mixed with the fruit juce &c. and then mechanically dispersed.  If necessary the juice is then deaerated.  Alternatively, the gel forming substance may be added to the liquid medium containing insoluble solids, in the presence of constituents adapted to form a gel from the gel-forming substance and the liquid agitated so as to distribute the gel thus formed throughout the liquid.  In an example, pectin, sugar, citric acid crystals, and hot water are made into a jelly which is added to lemon juice containing considerable amounts of lemon pulp, concentrated lemon juice, sugar, and water. A grapefruit or orange syrup may be made in the same way.  In another example a gel base is made with water, crystalline citric acid, sugar and pectin and mixed with fresh orange juice, citric acid crystals, sugar and water.  A tomato juice is made by dissolving agar in a heated portion of the juice, cooling and setting to a tender gel which is broken up and dispersed in the tomato juice.  An agar solution at about 40-45 DEG  C. is added to a mixture containing sugar, acid, and juice at 20 DEG  C., with rapid agitation until the gel formed is broken up and distributed throughout the medium. Specification 284,278, [Class 14 (ii), Beverages &c.], is referred to.
Patent GB-953874-A (GB)
Title: Fuel supply control for vertical take-off aircraft
Inventor: LAWRENCE OWEN NAPIER
IPC: B64C29/00
Filed: 1960-06-03
Abstract: 953,874. Gas turbine jet propulsion plant. JOSEPH LUCAS (INDUSTRIES) Ltd. May 23, 1961 [June 3, 1960], No. 19685/60. Headings F1G and F1J. [Also in Division B7] The fuel supply line to two groups of turbojet engines comprises a chamber 1 having an inlet 2 and two coaxial outlets 3, 4, for conveying fuel to the two groups of engines respectively, and a shuttle 5 in the chamber is connected to a control lever 8 so that movement of the lever will move the shuttle into one or other outlet to reduce the supply of fuel to the corresponding group of engines. The shuttle 5 is on a rod 6 pivotably mounted on the chamber 1 by a plate 7 flexibly sealed to the chamber.
Patent GB-945840-A (GB)
Title: Improvements in or relating to a spherical bearing assembly for electric machines
IPC: H02K5/167
Filed: 1960-06-03
Abstract: 945,840. Lubricating spherical bearings. PHILIPS ELECTRICAL INDUSTRIES Ltd. June 3, 1960 [June 6, 1959], No. 19760/60. Heading F2A. A spherical bearing assembly for an electric shaver or the like comprises a shaft 5 having a ball 2 thereon seated in a bearing plate 1, the bearing surfaces being lubricated by an oilabsorbent pad 3 held against the ball by a spring 4, and the oil being supplied from a chamber 9 in the plate, through ducts shaped as at 11 or 12. The shaft may have a flange at 13.
Patent GB-141094-A (GB)
Title: Improvements in the manufacture of piston rings
IPC: B23P15/06
Filed: 1918-11-30
Abstract: 141,094. Allen, R. Nov. 30, 1918. Rings.-Relates to the manufacture of pistonrings and consists in improvements in the apparatus for peening described in Specification 100,907, and in apparatus for removing the burr and rounding the edges of a piston-ring prior to peening. The piston-ring c, Fig. 1, is placed in a recess formed by two dies b, b<1> and is peened by a die d which is expanded by a descending plunger e having an extension e<2> moving in a hole in the bed-plate a. The plunger e is carried by a plate e<1> sliding on guide-rods f and acted on by springs g. The plate e<1> carries an upper die h by means of studs i passing through holes in the plate and surrounded by springs i<1>. The die h may carry a tool for marking the position of the split in the ring, or may carry a tool for severing the ring. The die d is formed with peripheral serrations which act on the ring c, the serrations being flatter in the neighbourhood of the split in the ring. The die d may be divided in one place only and may have radial cuts to increase its flexibility. Alternatively, the die may consist of segments held together by springs d<1>, d<2>, or by a spring ring formed with an internal bead entering a groove in the external periphery of the die or held in position by balls engaging recesses in the spring and in the die. In the apparatus fcr removing the burr &c. shown in Fig. 11, the ring c is pressed between a fixed die k<1> carried by the bed-plate m and a die k carried by a block l sliding on rods n and having a guiding-projection. The die may be formed, as shown, to rouad only diagonally opposite edges at one pressir.g, or to round all four edges simultaneously.
Patent GB-735971-A (GB)
Title: Improvements in change speed devices
IPC: F16H15/42
Filed: 1953-07-17
Abstract: 735,971. Variable-speed gearing. PERNOLLET, J. G., and BOYER, Y. A. July 17, 1953 [July 19, 1952; Feb. 20, 1953; June 15, 1953], No. 19841/53. Class 80 (2). Automatically-variable friction gearing comprises opposed co-planar driven and driving cones 1, 2 and an interposed ring structure composed of inner and outer rings 7, 8 which are rotatable relative to each other on roller bearings 9 against the action of springs 22, the ring 7 carrying rollers 16 engaging inclined slots 19, in, or inclines on the edges of, the ring 8 so that such relative rotation is accompanied by relative axial movement. Ring 8 is positioned by rollers 39a, 39b, 40a, 40b in a fork 38 pivoted on a carriage 44 slidable through pairs of rollers 58, 59 on a guide rail 45 parallel to the adjacent generatrices G<SP>1</SP>, G<SP>2</SP> of the cones. Fork 38 is pivoted through a spindle 60 secured therein and having a ball-and-socket engagement at 61 in the carriage 44 and having an arm 62 having a bull-and-socket engagement at 63 in the carriage, so that the pivotal axis C<SP>1</SP>, C<SP>2</SP> is inclined. A spring 47 tends, through the fork, to maintain ring 8 at right-angles to the generatrices G<SP>1</SP>, G<SP>2</SP>. Cone 1 is mounted in fixed bearings 51, 52. The small end of core 2 is mounted in a swivel bearing 53 and the bearing 54 for the large end is spring-loaded in a radial slot 55 in the casing. Change of load produces relative rotation between rings 7, 8 with consequent relative axial movement so that, due to the pressure between the cones and rings, the composite ring tends to tilt about the axis C<SP>1</SP>, H of spindle 60. Due, however, to the inclination of the pivotal axis C<SP>1</SP>, C<SP>2</SP>, such tilting is accompanied by tilting about axis C<SP>1</SP>, V, and the composite ring, fork and carriage accordingly move by precession along the guide 45 to a new position of equilibrium.
Patent GB-750135-A (GB)
Title: Improvements in or relating to glass fiber size
IPC: C09D5/23
Filed: 1952-08-06
Abstract: A composition for sizing glass fibres comprises an organic solvent solution or aqueous dispersion of a film forming resinous polymer and a water-soluble polysiloxanate in which some or all of the organic substituents are unsaturated radicals having less than six carbon atoms in straight chain arrangement such as allyl, methallyl, ethallyl, vinyl, propenyl, butyne, crotenyl and allenyl, the remaining substituents being short chain substituted or unsubstituted aliphatic, aromatic or heterocyclic radicals or hydrogen atoms.  The polysiloxanates may be obtained, for example, by adding trichloroallyl silane or dichlorodiallylsilane or a mixture thereof to an ice-cold aqueous solution of sodium hydroxide.  The solution should contain about 3 per cent silane and the pH should be about 11-12.  The film-forming resinous material may be an acrylate polymer, polyvinyl acetate or a butadiene/styrene copolymer, in amount from 1-5 per cent by weight of the size composition. Plasticisers and lubricants such as fatty acid amines and amides may be present, including amides from polyamines such as the reaction product of a fatty acid with tetraethylene pentamine modified with up to five methallyl groups substituted on nitrogen.  For use the sizes are adjusted to pH 5-8.  In an example a polyvinyl acetate dispersion containing 55 per cent solids and dibutyl phthalate are dispersed in water to form a mixture containing 3 per cent polyvinyl acetate dispersion and 0.5 per cent plasticiser.  The pH is brought to 3-4 and sodium vinyl polysiloxanate added in an amount to form 0.1 to 1.0 per cent of the composition, the pH being finally adjusted to 6 with sodium hydroxide.ALSO:Glass fibres are sized with an organic solvent solution or an aqueous dispersion of a film-forming resinous polymer and a water-soluble polysiloxanate in which some or all of the organic substituents are unsaturated radicals containing less than six carbon atoms in straight-chain arrangement, the remaining substituents (if any) being short-chain substituted or unsubstituted aliphatic, aromatic or heterocyclic radicals or hydrogen atoms. Suitable resinous polymers are polyacrylates, polyvinyl acetate and butadiene-styrene copolymers.  The solids content of the size may be up to 20 per cent, with a resin/polysiloxanate ratio of 1 to 5 parts resin to 0.1 to 1 parts polysiloxanate.  The size may contain plasticisers such as dibutyl phthalate, tricresyl phosphate, dioctyl phthalate and triglycol-di-2 ethylhexoate, and lubricants such as long-chain amines and amides, which may be substituted on the nitrogen atom by methallyl groups.  In an example an aqueous size containing 3 per cent by weight of a 55 per cent polyvinyl acetate dispersion, 0.5 per cent dibutyl phthalate and 0.1-1.0 per cent sodium vinyl polysiloxanate is applied to glass fibres by a roll at a pH of 5-8.