baber/WOPTO huggingface dataset:
Patent GB-870862-A (GB)
Title: Pressure centrifuge apparatus and process utilizing the same
IPC: B04B15/08
Filed: 1958-02-14
Abstract: During the manufacture of polyethylene polymerization occurs at low pressure at a temperature of 250 DEG -350 DEG F. in a cyclohexane carrier liquid in the presence of a solid catalyst.  The resultant mixture is passed through a centrifugal separator system (see Group II), the polyethylene and catalyst particles being respectively contained in the overflow and underflow from the separator.  To prevent polyethylene depositing the temperature within the separator is above 230 DEG F., and to prevent the cyclohexane and polyethylene boiling within the system the pressure is maintained at 100 p.s.i.g. To minimize migration in the separator of catalyst particles from the underflow to the overflow, the underflow is maintained at a temperature of 5 DEG F. below that of the overflow by cooling and returning part of the underflow to the separator.
Patent GB-452032-A (GB)
Title: Process for the production of photographic sound records
IPC: G11B7/00
Filed: 1935-02-15
Abstract: 452,032. Optical sound-recording and re-recording processes. I. G. FARBENINDUSTRIE AKT. - GES., Frankfort - on - Main, Germany. Feb. 15, 1935, No. 4926. Convention date, Feb. 20, 1934. Drawings to Specification. [Class 40 (ii)] A process for producing optical soundrecords consists in recording simultaneously on a film a plurality of sound tracks each representing a record of the same complete subject, one of the sound tracks being a normal sound record having the normal frequency characteristic whilst the higher frequencies in the other sound track or tracks are accentuated by distortion in such a manner that in copying while reducing to a definite scale, e.g. from a standard film to a 16 mm. sub-standard film, a reduced sound record is obtained in which all frequencies are reproduced approximately equally faithfully. All the tracks are preferably produced with the same microphone and with at least the same main amplifier. The necessary distortion may be effected by inserting a finely adjusted distortion device in front of one of the final amplifier stages, by constructing one of the sound recorders so that it produces a second sound record having a frequency characteristic modified in the desired manner or by inserting a special final stage of amplification in front of one of the recorders. Specification 450,314 is referred to.
Patent GB-421374-A (GB)
Title: Improvements in or relating to printers' galleys
IPC: B41B1/28
Filed: 1934-02-15
Abstract: 421,374. Printers' composing-appliances. PHILO, B. J., 72, Constitution Hill, Norwich. Feb. 15, 1934, No. 4988. [Class 100 (iii)] Galleys; locking - devices.-A galley having spring locking means comprises a movable intermediate bar a, which is connected to one of the sidebars by springs b. The springs are held in compression, to permit the type to be inserted, by spring clips d, secured to the side-bar and engaging in recesses in the intermediate bar. The clips can be raised by levers operated by means of rings f, in order to release the intermediate bar and to allow it to close on the type. Bars c serve to hold down the springs. Projections g on the intermediate bar provide a hold for the fingers. The galley is constructed of aluminium.
Patent GB-291138-A (GB)
Title: Improvements in and relating to the electrodes of secondary batteries
IPC: H01M4/76
Filed: 1927-02-22
Abstract: 291,138. Hart Accumulator Co., Ltd., and Schofield, W. Feb. 22, 1927. Electrodes.-A storage battery electrode consists of a number of conductors 5 surrounded by active material contained in tubes formed by two abutting sheets of corrugated insulating material 2. The latter are provided with slots to allow access of electrolvte to the interior of the tubes, and the conductors 5 are provided with washers 6 to prevent settling of the active material within the tubes. The sheets 2 are provided at intervals with flat portions 8 through which rivets pass and ebonite strips 7 embrace the edges of the sheets. The conductors 5 are joined at their ends by bars 4, and the sheets 2 are joined by bars 9 which may be burned to the bars 4. The sheets 2 may be provided with horizontal and' vertical corrugations and the slots and corrugations may be formed in one' operation while thematerial is soft and before vulcanization.
Patent GB-750959-A (GB)
Title: Improvements in or relating to hot oil heaters
IPC: F24D7/00
Filed: 1954-02-22
Abstract: 750,959. Liquid boilers. SWANEY, R. C. Feb. 22, 1954 [Feb. 27, 1953], No. 5139/54. Classes 64(1) and 64(2). A heater for oil for an industrial heating system comprises a cylindrical shell 14 having end walls 30, 32 and containing a heating tube 16 or tubes extending from one end wall to the other, a flow pipe or pipes 54, 56 connected to an inlet in the shell at a point spaced from both end walls 30, 32 and a return pipe 68 opening into the shell through one end wall 32 half way round from the flow pipe inlet. The part of the return pipe 68 adjacent to the end wall 32 is parallel to the axis of the shell 14, so that the returning oil is directed towards the opposite end wall 30. The oil boiler shown has a single horizontal heating tube 16 which receives hot gases from an oil burner through an inlet 22. The flow pipes 54, 56 are connected to a header 52 at the top of the shell 14. Alternatively, a flow pipe extends through an end wall 32 to a point between the end walls. The bottom of the shell 14 is connected to the bottom of an expansion tank 12 by a pipe 42. Vent pipes 80, 82 extend from the boiler shell and header 52 to the tank 12. Drain pipes 74, 76 are connected to the tank 12 and pipe 42. In a modification, the outer shell has a vertical axis and a number of vertical fire tubes connect the end plates.
Patent GB-221734-A (GB)
Title: Improvements relating to railway signalling apparatus of the double wire transmission type
IPC: B61L5/16
Filed: 1924-02-29
Abstract: 221,734. Kershaw, A. G., and Westing house Brake &. Saxby Signal Co., Ltd. Feb. 29, 1924. Visual outdoor signals.-Two or three position signals operated from a rotatable cam disc 3 connected by a double wire transmission 5, 6 from the cabin-levers are provided' with means for disconnecting one wire if the other breaks and for returning automatically to its normal position the camdisc under these conditions. The transmission wires 5, 6 are secured to one end of a member 17 disposed' in a recess in the groove on the edge of the disc 3, and having a hooked end 18, held by a pin 19 fixed on the wheel. If the wire 5 breaks, the tension on the wire 6 rocks the lever 17 about the pin 19 and subsequently disengages the hook from tne pin 19 leaving the disc 3 free for restoration to normal position by its counterweight 14. Fig. 5 shows a modification of the apparatus for actuating one of two signals by rotation of the disc 3 in opposite directions. In this case, the disc is restored to normal if either of the wires 5, 6 breaks. Both wires are attached to the same catch 30, which has a projection 31 engaged between pins 32 on the disc 3.
Patent GB-710677-A (GB)
Title: A device for displaying moving pictures
IPC: G03B15/08
Filed: 1952-02-28
Abstract: 710,677. Moving picture apparatus. PALLIES, H. Feb. 28, 1952 [March 8, 1951], No. 5265/52. Class 97(1) Pictures carried on a zig-zag band 2 (Fig. 3) are brought successively behind a window in a casing 1 by successive half turns of a frame 7 under control of an escapement. The frame is carried on a central rod driven by a rubber belt 6 from a pulley 3 from the side of which is frictionally driven a roller 4 on a spindle carrying an escapement wheel 5 which, at each turn, releases a rod 8 lying in the plane of the frame 7 and secured to the central rod.
Patent GB-748084-A (GB)
Title: Improvements relating to the manufacture of continuous board material
Inventor: KINNEAR FRANCIS LEONARD
IPC: C08L97/02
Filed: 1953-02-25
Abstract: 748,084. Making fibre-board. BARTREV, Ltd. Feb. 25, 1953, No. 5302/53. Class 96. Fibre-board is made from sawdust, or wood chips, &c., with 10 to 12 per cent of water, and 5 to 10 per cent of a thermosetting, hygroscopic resin of low curing temperature, e.g. urea-formaldehyde which may be applied as a dry powder or as an atomized spray, by mixing <SP>1</SP>/ 3  to <SP>1</SP>/ 2  of dry cold sawdust &c. with the whole of the resin, and the rest of the sawdust with live steam to raise its temperature to 100‹ C. and its moisture content to 20 to 24 per cent; and thereupon blending the two mixes at 55‹ to 75‹ C. for 4 to 6 minutes. The blended mixture, after passing a magnetic metal detector, is conveyed to a hopper 1, and to a spreader as disclosed in Specification 665,275, [Group V], or in Specification 704,346, [Group XXX], whereat it is heated, e.g. to 100‹ C., by a high-frequency heater 3 as disclosed in Specification 605,806, [Group XI], and passed to a caterpillar press B, as disclosed in Specification 665,276, comprising metal bands 2 and 4 backed by endless chains of platens 5 and 6. The process ensures good mixing whilst avoiding premature curing or lump adhesion. Specification 684,350, [Group V], also is referred to.
Patent GB-1459513-A (GB)
Title: Diaphragm member
IPC: F02D35/00
Filed: 1974-02-05
Abstract: 1459513 Fluid-pressure servomotor systems FRAM CORP 5 Feb 1974 [5 Feb 1973] 05326/74 Heading G3P [Also in Divisions F1 and F2] In a fluid-pressure controlled valve 10, a diaphragm closure member 80, controlling a seating on the end of a passage 58 in a tube 56, is combined with a differential pressure sensitive diaphragm 74 to form an integral diaphragm member 72. The closure member diaphragm 80 is essentially planar and the pressure sensitive diaphragm 74 flares outwardly from a central joining post 84 almost to its outer perimeter so as to be rigid over almost its entire operative area, which is considerably greater than that of the diaphragm 80. The diaphragm 80 closes a chamber 44 and is biased towards an open condition by a helical spring 102. The diaphragm 74 closes a chamber 24 and is subject to the over-riding influence of a piston 104 having a flexible wall 106 sealed to the valve housing to form a chamber 28. The piston is biased towards the diaphragm 74 by a spring 116 which is stronger than the spring 102. The two diaphragms form between them a chamber 88. A restricted bleed passage 86 is provided in the central post of the diaphragm member to connect the chambers 44 and 88. In use in a system, Fig. 6, for the control of exhaust gas re-circulation in an internal combustion engine, a valve 226 admits exhaust gas from a passageway 224 into the inlet manifold when vacuum from a reservoir 236 is admitted to a vacuum motor 228, controlling valve 226, as a result of the diaphragm 80 moving away from its seating to provide a connection between passages 58, 62 in tubes 56, 60 respectively. Chamber 24 is connected, via passage 36 in tube 34, to a Venturi 208 in a carburetter 204. Chamber 88 is connected via passage 54 in tube 52 with a point in the carburetter air intake between the carburetter and an air filter 212. Over-ride chamber 28 is connected via passage 40 in tube 38, with the inlet manifold 202 so that if there is insufficient vacuum in the inlet manifold 202 to overcome the biasing spring 116, the diaphragm member 72 is locked with the valve diaphragm 80 in the closed position. Vacuum reservoir 236 is connected to the inlet manifold 202 via a check-valve 238 which closes if pressure in the manifold rises above that in the reservoir. Provided the vacuum in the manifold is high enough to withdraw the over-ride piston 104, the diaphragm 74 will respond to the pressure differential between the air intake and the Venturi throat. Thus the degree of vacuum fed to the motor 228, and hence the degree of opening of the valve 226, is proportional to the rate of flow through the carburetter.
Patent GB-153512-A (GB)
Title: Improvements in or relating to ignition devices for internal combustion engines and the like
IPC: H01T13/24
Filed: 1920-02-23
Abstract: 153,512. Pickard, W., and Dobson, D. R. Feb. 23, 1920. Sparking-plugs.-Plugs of the type in which the central electrode and its insulation constitute a piston-like member slidably mounted in the plug body, are fitted with a gland nut l which forms a positive but adjustable stop limiting the movement of the electrode and, consequently, the degree of separation of the contacts f, d. Scales are provided on the gland and casing for affording a fine adjustment of the spark-gap, the parts being secured in position by a lock-nut m. To facilitate cleaning of the contacts, a rotary motion may be given to the piston by providing an oblique or helical slot therein for engagement by a pin projecting from the gland. The piston member consists of a central electrode f, mica wrapping and washers g<1>, g, and metallic sleeve c grooved for the reception of piston-rings e<1>.
Patent GB-230616-A (GB)
Title: Improvements in or relating to devices for spraying oil and other fluids
IPC: F23D11/24
Filed: 1924-03-03
Abstract: 230,616. Burton, A. E. March 3, 1924. Joints and connections.-A device for spraying oil or other liquid, more particularly for use where the nozzles are used intermittently and are exposed to heat, such as in spraying oil into the carburetting chambers of a water-gas plant, has the spraying nozzle mounted normally within a cylindrical heat screen B from which it is projected by the pressure of the liquid and into which it is retracted when the liquid supply is cut off. The nozzle is carried on a movable pipe A within bhe guard cylinder B having a rear extension in which fits the hollow piston E carried by the pipe A. A rod F attached to the piston carries a plate f<1> which compresses a spring G in the cylinder C. Oil &c. under pressure is admitted through the port H and forces the piston E to the left until the plate f<1> reaches the position f<3> while at the same time oil passes through ducts c<2> into the pipe A and thence to the nozzle. Oil is admitted into the cylinder C through ports d<2> and to the back of the plate f<3> through notches cut therein.
Patent GB-443271-A (GB)
Title: Improvements in or relating to leaded lights
IPC: C03C17/00
Filed: 1935-05-02
Abstract: 443,271. Uniting by electro-deposition. GIBBS, A. W. L., Kendal Works, Lowestoft. May 2, 1935, No. 5499. [Class 41] [See also Group X] The H-section cames of leaded lights have rounded grooves and after joining by soldering are coated electrolytically with a strengthening or decorative metal by first cleaning in pickle and by successively depositing copper, nickel and chromium or other suitable base and rare metals successively. The cames are cleaned and burnished after the deposition of each metal and an ornamental effect may be produced by protecting portions with a wax or varnish coating. The glass is sealed in the cames by pressing on the rounded bases and by the deposited metal.
Patent GB-578530-A (GB)
Title: Improvements in or relating to conical or double conical springs for use in upholstery and furniture in general
IPC: A47C23/043
Filed: 1944-03-27
Abstract: 578,530. Springs. MORRIS, W. E. March 27, 1944, No. 5638. Drawings to Specification. [Class 108 (iii)] A conical or waisted upholstery spring is formed from wire of oval or substantially oval cross-section with the major axis in the direction of the axis of the spring. The wire end may be welded to the adjacent convolution, and the wire formed of less malleable material than would be necessary if the connection were made by means of a loop, tie or knot. The wire may be formed by pressing wire of circular section.
Patent GB-661479-A (GB)
Title: Improved valve mechanism particularly for hydraulic shock absorbers
IPC: F16F9/34
Filed: 1949-03-02
Abstract: 661,479. Valves. GENERAL MOTORS CORPORATION. March 2, 1949 [March 12, 1948] No. 5679/49. Class 135 [Also in Group XXXII]. A spring-loaded valve device opening in either direction and applicable to hydraulic shock absorbers comprises a valve member 30 guided and urged towards a seat 23 by radial spring fingers 37 formed integrally with a ring 35 which is held by an inturned flange 36 on the body 20 of the device, and a ported piston valve member 40 operating in a bore of the member 30 and loaded by a spring 44. A notch 34 in the member 30 provides a permanent restricted opening.
Patent GB-1116565-A (GB)
Title: Tool for electrical wrapped connection
Inventor: BATTLEMUCH PETER WILLIAM
IPC: H01R43/033
Filed: 1966-02-09
Abstract: 1,116,565. Wrapping electric terminals. ERICSSON TELEPHONES Ltd. 5 Dec., 1966 [9 Feb., 1966], No. 5778/66. Heading B3E. A method of manufacturing a tool for making an electrical wrapped connection, the tool comprising a hollow cylindrical rotor 11 having in its external surface a rectilinear wire feed groove 13 parallel to the longitudinal axis of the cylinder, includes forming the wire feed groove 13 by a grinding process. A sleeve 14 passed over the rotor 11 may be subsequently reduced to a desired external diameter.
Patent GB-124818-A (GB)
Title: Improvements in or relating to Internal Combustion Engines.
Inventor: RUSTON JOSEPH SEWARD
IPC: F02B57/08
Filed: 1916-04-20
Abstract: 124,818. Ruston, J. S., and Chorlton, A. E. L. April 20, 1916. Cylinders, combustion chambers of.-The power of engines of the revolving radial cylinder type is increased without increasing the face area, or the surface presented by the engine when revolving, by increasing the stroke of the piston without increasing the length of the cylinder, and providing a combustion chamber external to the cylinder and at its side. The combustion chamber E is preferably disposed 'between adjacent cylinders as shown, and is connected to the cylinder A by a constricted passage E<2>. The chamber E may be formed integral with the cylinder cover C; or it may be connected to the cylinder by welding, or secured by means of bolts K and a strap L.
Patent GB-1149124-A (GB)
Title: Differential gear assemblies
Inventor: STOTT THOMAS CHARLES FELIX
Filed: 1967-02-07
Abstract: 1,149,124. Differential gearing. VAUXHALL MOTORS Ltd. 18 Jan., 1968 [7 Feb., 1967], No. 5915/67. Heading F2D. In a differential gear, particularly for a motor vehicle, slip is resisted by pumping hydraulic fluid through one of two restricted orifices according to the direction of rotation of the output gears. In the embodiment shown in Figs. 1 and 2, a pair of bevel gears 16, 18 carried by a driven casing 10 mesh with output gears 20, 22 on shafts 24, 26. Shaft 24 carries a ring of gear teeth 28 arranged eccentrically with respect to a ring of internal gear teeth 30 which rotate in casing 10 to form a pump in conjunction with an arcuate member 32. Passages 36, 38 lead from the pump to chambers 40, 42 each of which has a pair of apertures controlled by spring-loaded intake and relief valves 44, 48 respectively, valves 44 having restricted delivery orifices 46. Whenever there is relative rotary movement between shaft 24 and casing 10, fluid is drawn in through one of the apertures 46 and its associated valve 44 and pumped out through the other aperture which produces a resistance to the flow of fluid increasing with the speed of relative rotary movement. Relief valves 48 prevent too great an increase in hydraulic pressure. Alternatively, the pump may be of the vane or plunger type. Fig. 6 shows another embodiment wherein the differential is of the type having three pairs of planetary gears 50, 52, the gears of each pair overlapping and meshing with each other and with the output gears. The gears together form a total of nine gear pumps communicating by passages 56, 58 in casing 10 with the chambers 40, 42.
Patent GB-847518-A (GB)
Title: A process for the production of boron hydrocarbons
IPC: C07F5/02
Filed: 1957-02-21
Abstract: Boron hydrocarbons are produced by heating a boron alkyl containing two or more carbon atoms in the alkyl residue to a temperature of at least 100 DEG C. with an ethylenically unsaturated hydrocarbon, corresponding to the hydrocarbon radicals of the boron hydrocarbon to be produced.  The reaction is assisted by removing the olefine which is formed during the reaction.  When a readily volatile compound is used or formed in the reaction it is convenient to carry out the reaction under pressure in a closed vessel.  The reaction can also be carried out in an inert solvent such as a saturated aliphatic or an aromatic hydrocarbon, or an ether, or in an excess of the olefine used as a reagent.  Examples describe the preparation of boron triethyl, boron tri-decyls, boron tri-(2-phenylpropyl), boron trihexadecyl, boron tri(cyclohexyl) and boron tri-bicyclo-(2,22, 1)-heptyl.  Boron tri-decyl is titrated with perbenzoic acid to form a nonalkyl boric acid dialkyl ester.
Patent GB-1044267-A (GB)
Title: Polyureas
Inventor: MULLER ERWIN
IPC: C08G18/32
Filed: 1964-02-12
Abstract: A stable dispersion of a polyurea in an organic liquid polyhydroxy compound is prepared by reacting an organic diisocyanate and a primary diamine, secondary diamine, hydrazine or a difunctional hydrazide wherein the number of NCO groups are substantially equivalent to the number of N atoms having bonded thereto hydrogen atoms which hydrogen atoms are more reactive with respect to the -NCO groups than the -OH groups of the liquid organic polyhydroxy compound which has at least two primary, secondary or tertiary -OH groups, a M.W. of at least 500 and an OH number of less than 225, in which compound the process is carried out.  The organic diisocyanate may be aliphatic, cycloaliphatic, aromatic or heterocyclic.  The polyhydroxy compound may be a polyester, polyalkylene ether, polythio ether, polyacetal or aliphatic polyol. In examples (1) tolylene diisocyanate and hexamethylene diisocyanate were reacted separately with hydrazine hydrate in polypropylene glycol ether; (2) tolylene diisocyanate was reacted with N-methyldipropylene triamine in polypropylene glycol ether; (3) tolyelene diisocyanate was reacted with tolylene 2,4 diamine in polypropylene glycol; (4) tolylene diisocyanate was reacted with ethylene diamine in polypropylene glycol.  In all the examples the mixtures were heated with stirring for an hour and viscous stable emulsions were obtained.
Patent GB-991044-A (GB)
Title: Multi-coloured paints and method of preparing them
Inventor: HONDO HEIJIRO
IPC: B05D5/06
Filed: 1963-02-14
Abstract: One component of a paint of at least two colours, comprising a disperse phase of easily visible pigment-containing disperse units of coat-forming ingredients, is prepared by adding a non-solvent medium for (a) cellulose derivatives, (b) solid resins or (c) mixtures of cellulose derivatives and solid resins homogeneously with stirring to a solution type paint comprising (A), (a), (b) or (c) as its coat forming ingredient, (B) a solvent miscible with the non-solvent medium as its solvent ingredient, and (c) a pigment, in such a way that the whole of the pigment is included in the precipitated coatforming ingredients.  Two or more of such components are mixed to form a multi-coloured paint.  The solvent preferably comprises a mixture of (1) a solvent of slow evaporation rate and (2) a solvent of greater evaporation rate than solvent (1).  The non-solvent medium should preferably have a greater evaporation rate than solvent (1). Suitable solution type paints include cellulose, ethyl cellulose and acetylcellulose lacquers, and polyvinyl acetate, polyvinyl chloride, acrylic ester, methacrylic ester and polyamide resin paints.  The non-solvent medium may be water, an alcohol or a coal tar or petroleum fraction.  In one of the examples butanol and then water were sequentially added with stirring to each of two differently coloured lacquers, each comprising nitrocellulose, pigments, soybean oil degenerated alkyd resin, mixed solvents and cobalt and lead driers.  In another example, butanol, mineral spirits and water were sequentially added with stirring to each of two paints comprising an acrylic ester resin, mixed solvents and pigments. In both examples the thus prepared components were mixed to form a multicolour paint.