baber/WOPTO huggingface dataset:
Patent GB-1030366-A (GB)
Title: Modified bulk polymerization process
IPC: C09D127/04
Filed: 1964-04-16
Abstract: A modified bulk polymerization process for the preparation of rubber-modified polyvinyl aromatic materials comprises polymerizing with agitation in an initial polymerization zone a solution comprising 70 to 97% of a polymerizable mixture and 3 to 30% by weight of an inert alkyl aromatic diluent having a boiling point between 110 DEG  and 200 DEG  C., the polymerizable mixture comprising 65 to 98% of styrene or an alkyl, halo or alkylhalo derivative thereof, up to 5% of additives and 2 to 30% of rubber, the polymerization being carried out at a temperature below 140 DEG  C. until a conversion of 10 to 45% of monomer to polymeric material is obtained, then passing the reaction mixture to at least one static polymerization zone wherein the mixture is polymerized at a temperature from 100 DEG  to 220 DEG  C. until a conversion of 85 to 100% of monomer to polymer is obtained, and passing the resulting polymeric material to a devolatilization zone at a temperature of 140 DEG  to 260 DEG  C. and a pressure of 5-760 mm. Hg. abs. to remove unreacted polymerizable material and alkyl aromatic diluent. Alkyl aromatic diluents specified are ethylbenzene, diethylbenzene, methyl ethylbenzenes and xylenes. Rubbers specified are natural rubber, gutta-percha, copolymers of butadiene with styrene or acrylonitrile, polybutadiene and polyisoprene.  Additives specified are lubricants, e.g. paraffin wax, mineral oil and esters of higher fatty acids, and antioxidants, e.g. trisnonylphenyl phosphite or butylated hydroxytoluene. Also present in the polymerizable mixture may be peroxide catalysts and mercaptans.
Patent GB-1015594-A (GB)
Title: Food carrying trays
IPC: A47J39/02
Filed: 1963-12-20
Abstract: 1,015,594. Trays; article carriers. C. H. BLACKBURN, and A. H. BODY. Dec. 20, 1963, No. 15953/62. Headings A4A and A4G. A metal tray, for carrying a meal at least a part of which is to be served hot, has side walls with out-turned upper edges, and the base has at least two holes each of which receives a removable dish or plate seated on the margin of the hole. The holes in a tray may be surrounded and/or covered by an insulating member on which another tray seats. Individual trays or a tier of trays are loaded on a stand or trolley for transport the lowest tray of a tier being seated on a heat-insulating tray e.g. of glass fibre. For transporting a tier of trays a metal framework or basket having a loop which incorporates a spring and passes over the tier is provided.
Patent GB-1043250-A (GB)
Title: Improvements in and relating to methods of producing visible images copy media
IPC: H01L21/00
Filed: 1963-04-23
Abstract: 1,043,250. Electrophotographic processes. ITEK CORPORATION. April 23, 1963 [May 14, 1962], No. 15990/63. Heading G2H. [Also in Division H1] A method of producing a visible image using a photoconductive material containing a metal, comprises exposing the material to an image pattern to render the photoconductive material capable of causing chemical reaction at portions corresponding to the image, and then reversibly developing activated portions by contacting at least these portions with a liquid redox system to form reaction products defining a visible image. In one example, a glass slide coated with titanium dioxide was exposed by a mercury lamp to an object slide. The exposed slide was developed in a solution of hydroquinone in methanol saturated with silver nitrate. Other silver salts, e.g. Ag ClO 4  or mercurous or mercuric salts can be used in place of silver nitrate. In other examples, images on zinc oxide coated paper were developed with a solution of methanol, silver nitrate, nitric acid, and hydroquinone, or a solution containing methylene blue in methanol.
Patent GB-372965-A (GB)
Title: Apparatus for charging, discharging and turning the material in rotary-hearth furnaces
IPC: F27B9/16
Filed: 1931-06-04
Abstract: 372,965. Rotary-hearth furnaces. I. G. FARBENINDUSTRIE AKT.-GES., Gruneburgplatz, Frankfort - on - Main, Germany. June 4, 1931, No. 16161. Convention date, Aug. 29, 1930. [Class 51 (ii).] Charges, agitating and conveying.-In apparatus for agitating and conveying the charge in a rotary-hearth furnace of the kind comprising a water-cooled arm carrying rabbling or conveying members and mounted, externally of the furnace, on a carriage or the like by which it may be moved radially of the hearth, the rabbling or conveying members which penetrate the charge are also water-cooled. In the form shown in Fig. 1, the device comprises a worm conveyer a the helix n of which is hollow and traversed by the cooling water supplied through the shaft s. The conveyer is mounted on a radially-movable carriage b by which its insertion and withdrawal through an aperture h in the wall of the furnace k is effected and on which is arranged a motor and associated gearing for driving the conveyer at the desired speed. Fig. 2 shows a further construction in which the device comprises one or more ploughlike members r traversed by the cooling water supplied through the arms p and arranged to be reciprocated radially of the hearth l in an external supporting frame o. The worm a and ploughs r may be used in combination in the same furnace, the ploughs, in this case, being preferably formed merely as rabbling members which have no conveying action on the charge.
Patent GB-420687-A (GB)
Title: Improvements in or relating to frequency modulating arrangements
IPC: H03C3/24
Filed: 1933-06-06
Abstract: 420,687. Thermionic modulating- circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. June 6, 1933, No. 16272. Convention date, June 4, 1932. [Class 40 (v)] A valve of the kind described in Specification 418,132 is used as a variable-resistance element in a system of frequency-modulation. The frequency of the oscillator valve V1 is determined by a tuned circuit comprising a coil L and two condensers C1, C2 in parallel. The condenser C2 is in series with a valve V2 having an electron density - regulating grid G1 and a velocity-regulating grid G2, carrying fixed potentials. Modulating signals from the transformer T are applied to the control grid G, to vary the internal impedance of the valve V2, and therefore the frequency of the tuned circuit L, C1, C2.
Patent GB-130219-A (GB)
Title: Modulating Method and Apparatus for High Frequency Electrical Signalling.
IPC: H03C1/52
Filed: 1918-10-07
Abstract: 130,219. Western Electric Co., (Western Electric Co.). Oct. 7, 1918. Wireless telegraphy; wireless telephony.-High frequency carrier oscillations are modulated by currents of signalling frequency by impressing the carrier oscillations symmetrically on a pair of circuits which are influenced differentially by the signal currents, the modulated oscillations being impressed differentially on the outgoing circuit. As shown in Fig. 1, the circuit of the oscillation generator 40 is coupled to a common branch of the grid circuits of two vacuum tubes 3, 4. The circuit 42 of the signal currents is coupled to a coil 45 placed across the two condensers 12, 13 of the grid circuits. The plate circuits of the tubes 3, 4 include coils 46, 47 which exert opposite influences on the outgoing circuit 50, so that no current is produced in the circuit 50 unless signal currents are passing in the circuit 42. When, however, the signal circuit 42 is active, modulated oscillations are produced in the outgoing circuit 50. In a modification, shown in Fig. 2, the signal currents in the circuit 42 operate a differential microphone 61 so as alternately to increase and reduce the resistance in the parallel circuits 51, 52, the common branch of which is coupled to the oscillation generator 40. Coils 46, 47 in the circuits 51, 52 are coupled differentially to the output circuit 50. Specifications 102,503 and 130,432 are referred to.
Patent GB-568775-A (GB)
Title: Improvements in electrical cable manufacture
IPC: H01B7/16
Filed: 1943-10-05
Abstract: 568,775. Electric cables. CHAMNEY, R. M. Oct. 5, 1943, No. 16335. [Class 36] A cable insulated with particulated material, such as sand or fused silica, is formed by passing a metal strip and one or more conductors through a die 1 where the strip is formed into a U-shaped trough, under a hopper p and then through a second die 2 where the trough is closed into cylindrical form. Die 1 has a member e of constant cross-section and an aperture f for the conductor, the groove c starting as a semicircle and ending U-shaped. Die 2 has a member j which effects the closing of the strip and provides an inverted groove j<1> starting as a rectangle and ending as a semicircle. Die 2 carries an adjustable smoother q for the material which is fed from the hopper p under its own head. An electric heater m may be provided below the hopper to drive off moisture from the granulated material. The metal strip may be of copper and after closing its edges are soldered or welded, the cable being then bound with a steel tape. Specification 555,152 is referred to.
Patent GB-1377002-A (GB)
Title: Gas purifier unit
IPC: B01D47/02
Filed: 1972-04-10
Abstract: 1377002 Gas purifyer CONTROL RESEARCH PRODUCTS Inc 10 April 1972 16421/72 Heading B1R A gas purifyer comprises a container with a cylindrical portion 12 having a gas outlet 14, cleansing liquid outlet 18 and a downwardly directed conical baffle 20 which has a plurality of gas openings 44 so inclined to the upper surface of the baffle 20 so that all the gas streams issuing therefrom have a tangential component of motion rotating in the same sense whereby the helical passage of gas bubbles through a body of cleansing liquid 32 above the baffle 20 gives the liquid a circulatory motion about the axis of the container; the gas purifyer also containing a lower body of cleansing liquid 36 between which and the baffle 20 is formed a gas space 42 extending across the container into which gas is fed from duct 40 at sufficient pressure to prevent liquid 32 descending and to force gas through the openings 44, and an imperforate portion 26 extending from the apex of the baffle 20 to form a connection between the bodies of liquid 32 and 36. The gas openings 44 may be of circular or slit cross section and comprise openings 78, deflector plates 80 (see Fig; 3) preferably at 45 to the baffle surface, and optionally lower plates parallel to plates 80. Cleansing liquid is fed onto the baffle 20 from tangentially arranged inlets 30 which imparts a further circulatory motion to liquid 32. In a second embodiment (Fig. 5) a second baffle 124 whose deflector units 136 impart to the gas a motion opposite to that of the baffle 20 is provided coaxially with the baffle 20. A layer of bubbles 34, 146 is preferably allowed to form on the upper body of liquid.
Patent GB-153347-A (GB)
Title: Improvements in or relating to mountings for high angle guns
IPC: F41A27/24
Filed: 1919-06-30
Abstract: 153,347. Dawson, Sir A. T., and Buckham, Sir G. T. June 30, 1919. Mountings for high-angle fire. Consists in an arrangement wherein the gun and cradle are elevated about a trunnion axis near the centre of mass of the system for normal elevations against land targets or for following-up aerial targets, and about a second trunnion axis in the normal vicinity of the gun breech for the large elevations required when changing from land to aerial targets. The elevating-gear for the latter purpose may be electrically-driven. Fig. 3 shows the gun at maximum elevation. The gun A and cradle B are trunnioned at B<1> in the cheeks of an inner carriage D, which is pivoted on trunnions D' in the pedestal mounting C. A handoperated elevating-gear F, F<2>, B<2> swings the gun and cradle on the trunnions B<1>. The carriage D, together with the gun and cradle are elevated about the trunnions D' by an elevating-gear E, E<2>, C<2> by an electric motor E mounted on the inner-carriage D. A gunner's platform H is suspended on each side of the mounting from the axis E<3> of the elevating-pinion E<2>, and is connected to the pedestal C by a parallel-motion link H<2>. The gunner on the further platform operates the training hand-wheel, which is mounted on the inner carriage D, and is connected to the training-worm by a telescopic shaft.
Patent GB-660508-A (GB)
Title: Improvements relating to stands for clothes drying and the like
IPC: D06F57/04
Filed: 1949-06-21
Abstract: 660,508. Garment stands. M. G. A. INDUSTRIES. Ltd., KING, D. J., and CROMPTON, F. 1. June 21, 1950. [June 21, 1949] No. 16460/49. Class 52 (v). [Also in Group I] A stand for supporting clothes comprises a vertical post A with an upstanding pin on which is rotatably mounted a head comprising two spaced horizontal plates D D<SP>1</SP> connected by a tubular socket D<SP>2</SP> which fits freely over the pin. Pins E rigidly attached to arms F Fl F<SP>2</SP> pass through holes in the plates, the pins E attached to the arms F F<SP>1</SP> being freely rotatable in the holes and the pin E attached to the arm F<SP>2</SP> being welded to the plate D<SP>1</SP>. The arms F F<SP>1</SP> can thus be swung to a folded position close to the arm F<SP>2</SP>. The arms have cord grip devices G attached thereto each grip having loops G<SP>1</SP>. Each cord is attached to a loop G<SP>1</SP> on the arm F<SP>1</SP> passed through the loops on the other arms and attached to the other loop G<SP>1</SP> on the arm F<SP>1</SP>. In a modification tubular guides for the cords pass through the arms the cords being knotted at each side of the guide. The post is inserted in a socket B provided with a plunger 17 which can be raised by bars M<SP>1</SP> to remove foreign matter.
Patent GB-1437663-A (GB)
Title: Thermosetting powder coatings
IPC: C09D5/03
Filed: 1974-04-16
Abstract: 1437663 Powder coating composition UNION CARBIDE CORP 16 April 1974 [23 April 1973] 16593/74 Heading C3B A thermosetting powder coating composition comprises: (I) a polymer containing 50-95% by wt. of vinyl chloride, 1-25% by wt. of glycidyl acrylate or methacrylate and optionally one or more other ethylenically unsaturated monomers and (II) a crosslinking agent for the glycidyl group; substantially all the particles having a size between 1 and 75 Á. An example of I is a 80/10/10 vinyl chloride/vinyl acetate/ glycidyl methacrylate terpolymer. II may be a polyol or polycarboxylic acid. A curing catalyst, e.g. a stannous carboxylate may also be present. II may be present at 0À1 to 1 equivalents per epoxide equivalent of I. Conventional pigments, dyes, fillers, stabilizers, flow control additives and other adjuvants may be present.
Patent GB-169252-A (GB)
Title: Water-cooling the cylinder head of heat-driven engines
IPC: F02F1/14
Filed: 1920-06-19
Abstract: 169,252. Madler, F. L. June 19, 1920. Cylinders, cooling.-Communication between the water jacket of the cylinder barrel a and of the head e is made through channels c in the flange d, and the joint is made water and gas tight by packing f, g, the packing g being compressed by a band of metal h. When, as shown in Fig. 3, the jacket k is of sheet metal, its joints are also kept water-tight by packing g.
Patent GB-517667-A (GB)
Title: Improvements in or relating to radio landing systems for aircraft
IPC: G01S1/02
Filed: 1938-06-03
Abstract: 517,667. Directive wireless signalling. THIEMANN, W. H. A. (Bendix Aviation Corporation). June 3, 1938, No. 16643. [Class 40 (v)] In a blind-landing system, the machine is maintained in true flight so that it is aerodynamically stable at all times until it makes contact with the ground. This is contrasted with the usual gliding descent, followed by stalling into a three-point landing. An automatic gyro-control of known type is used, once the machine has entered the radio beams, to hold it on its forward course and to keep a fixed rate of descent along a path which finishes practically parallel with the ground, so that the attention of the pilot can be kept fixed on the two main " course " indicators, with occasional vernier adjustment of the gyrocontrols. Fig. 10 shows the approach path from a point 44 to the main beacon 12. Then to a point 45 on beam from the runway localizer 13, over the landing-field 11 and marker beacon 21, to an arbitrary point 46 where the pilot turns and heads directly back to the landing beam. He now throttles down and flies by instrument. An extra marker beam 48 may be provided to warn the pilot should he over shoot the correct landing-point. In the runway localizer beam shown in Fig. 5, the carrier-wave from a source O is split into channels 16, 17, of equal frequency but different phase ; each phase is separately modulated at 18 by characteristic signals and is then fed to crossed frame aerials 20, and radiated in the usual way. A radiogoniometer 19 regulates the displacement of each radiated field in space. The landing beam transmitter is shown in Fig. 4 and radiates a field with various lines such as 27, 28, 29, Fig. 3, of constant field-strength. Fig. 6 shows the receiving installation on the craft. Course-indicating signals received by the aerial 30 are passed through filter circuits 32, tuned to the modulation frequencies, and operate the " azimuth " needle 33 of a crosspointer indicator 34. Another aerial 35 feeds signals from the landing beam to a " descent " pointer 38 on the same instrument, this pointer keeping level along a landing-line of constant field-strength. Marker-beacon signals are registered by a separate indicator 37. The horizontal dipole is preferably mounted about 15 ft. above the landing-wheels of the machine, this ensures that the machine makes the proper angle of contact with the ground, at a point before the various lines of constant field-strength merge together. The landing-path, and the point of contact, can both be varied, either by regulating the sensitivity of the receiver, or by adjusting the height of the dipole aerial 35 by means of a pivoted supporting-frame 42 (Fig. 8 not shown).
Patent GB-1033447-A (GB)
Title: Ion sources
IPC: H01J27/26
Filed: 1965-04-21
Abstract: 1,033,447. Ion sources. CSF.-COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 21, 1965 [April 27, 1964], No. 16692/65. Heading H1D. In an ion source in which a plasma is produced in an enclosure 1 by ionization of a gaseous substance, ions are extracted from the enclosure through one or more grids 6 having extraction holes of a width, in metres, not greater than 2R, where R is the thickness of the ion sheath 9 surrounding the plasma 8 and equals 195 (T/n p )<SP>1/2</SP>, T being the temperature in K. of the enclosure, and n p  the number of ions or electrons per cubic metre of the plasma. As shown, Cs, K, Li, Rb or Na vapour from heated reservoir 5 is ionized by contact with the heated Ta, W, Mo or Re walls 2 of enclosure 1, and ions are extracted by a negatively biased electrode 7 through circular, square, rectangular or triangular holes in grids 6. The thickness of the grids 6 may equal the width of the holes therein. Using a Cs reservoir at 425 K. and Ta walls 2 at 1600 K., R is about 20 Á and ion currents of 40 mA/cm.<SP>2</SP> are obtained, but with W walls 2 at 1800 to 1900 K. an ion density of 0À5 to 1A/cm.<SP>2</SP> is possible.
Patent GB-1060285-A (GB)
Title: Improvements in or relating to electronic position repeater devices
IPC: B66B1/16
Filed: 1965-04-21
Abstract: 1,060,285. Lift control systems; mechanical garages. LA TELEMECANIQUE ELECTRIQUE. April 21, 1965 [April 21, 1964; March 22, 1965], No. 16763/65. Headings B8E and B8L. [Also in Division H3] In a position indicator for a lift system or the like, the direction of movement is represented by complementary signals S1, S2, whilst signals a relating to the actual position of the moving object are resolved into main signal I and complementary signal I. In the approach zone to one of the stops P1-P5, I is zero and #I unity, whilst, in the intervals between stops, I is unity and #I is zero. The four signals are applied to AND-gates G1-G4, the arrangement being such that if the signals S1 and #I are at unity, for example, the gate G1 supplies an output voltage and the others do not. The intervals between stops are associated with assemblies Int1-Int5, the first interval comprising AND- gates I 1 -IV 1 , NOR-gates N1C 1 , N1P 1 , and flip-flop BA1. These assemblies are connected in parallel between rigid conductor bars H1- H4, the conductors H1, H2, transmitting registering signals for the directions s 1 , s 2 , respectively, and the conductors H3, H4, transmitting erasing signals for these directions. The assembly Int 1  supplies complementary signal A, A, for regulating the displacement of the moving object, its direction of motion, or speed. The AND-gate In comprises diodes d1-d3 having their cathodes connected to a source of negative voltage and providing a zero output signal if one or more of the inputs receive a zero signal. The NOR-gate N1C n  comprises transistor Tra receiving signals from gates In, IIn, the output signal being unity when neither of the inputs is at unity. Transistors Tra, Trb are connected to transistors Tr2, Tr1, in flip-flop BAn from which signals Xn, #Xn are taken. A winding e provides a delay in changing-over the condition of the flip-flop when the input signal is altered.
Patent GB-781939-A (GB)
Title: Improvements in hydroforming
IPC: F28C3/10
Filed: 1955-06-10
Abstract: Heat is supplied to a hydroforming zone containing a fluidized bed of powdered hydroforming catalyst by charging highly heated shot of greater size and density than the catalyst and allowing the shot to gravitate through the <PICT:0781939/IV (a)/1> catalyst, thus heating it, withdrawing catalyst and shot from the reactor, causing the shot and catalyst to flow into a transfer line in communication with a regenerator effecting at least a partial separation of the mixture, by means of gravity, into a catalyst stream and a shot and catalyst stream, returning the separated catalyst stream to the hydroforming zone, conducting the separated shot and catalyst stream to the regenerator wherein the shot and catalyst stream is subjected to oxidative regeneration, and maintaining in the regenerator a higher ratio of shot to catalyst than in the hydroforming zone.  The shot material is preferably mullite in the form of microspheres having an average particle size of 300-700 microns.  The catalyst which preferably consists of 10 per cent of molybdenum oxide and 90 per cent of alumina has a particle size of about 60-80 microns.  In a preferred embodiment, preheated virgin naphtha containing 30-40 volume per cent of naphthenes is fed through line 2 to a reactor 1 containing catalyst and shot which is constantly removed through well 3 and U-bend 5 at the bottom of which the catalyst is largely separated and returned to the reactor via pipe 7.  The shot together with some of the catalyst is lifted by air injected through pipe 8a through riser 9 into a regenerator 6 in which the particles are regenerated and then returned to the reactor via pipe 12.  The fines from the regenerator pass through a cyclone Cy by which fines are removed and returned to the bed c1 through dip pipe d1.
Patent GB-129293-A (GB)
Title: Improvements in or relating to Apparatus Suitable as Reciprocating Engines, Pumps, Compressors or for the Hydraulic Transmission of Power.
Inventor: CAUT FRANCOIS LOUIS
IPC: F16H39/02
Filed: 1919-07-04
Abstract: 129,293. Caut, F. L. Oct. 8, 1915, [Convention date]. Oscillating - cylinder pumps; radial - cylinder pumps; valves and cocks, arrangement of.- Apparatus capable of use as an engine driven by air, vapour, or steam, as an air compressor, as an element. in a power-transmitting gear with change-speed and reverse for a motor car, and as a brake, comprises oscillating radial cylinders 2 provided with pistons 4, the flat rods 5 of which are connected by pins 6 to a grooved sleeve 7 surrounding the crank pin of a shaft journaled in ball or other bearings 14 in a crank casing forming part of the side plates 15, 16 against which the hollowed sides of the cylindrical blocks 2 bear. The cylinders are provided with ports 20, 21, which communicate with the inlet and outlet through annular recesses 18, 19 in a peripheral ring 1 arranged between the plates 15, 16.