baber/WOPTO huggingface dataset:
Patent GB-952487-A (GB)
Title: A colour signal recording and reproducing system
IPC: H04N11/08
Filed: 1961-03-07
Abstract: 952,487. Colour television. SONY CORPORATION. March 7, 1961 [March 7, 1960], No. 8327/61. Heading H4F. Luminance and chrominance signals are recorded alternately at line rate in a magnetic recorder and during reproduction are derived through switch means and a one-line duration delay circuit so as to re-establish continuous sequences of luminance and chrominance signals. The invention is described as applied to an apparatus utilizing signals in accordance with the N.T.S.C. standards. Red, green and blue signals from camera 1, Fig. 1, are converted in a matrix 2 to Y, Q and I signals at terminals 4, 5 and 6, respectively. The Y signal is restricted to 3 mc/s. bandwidth, Fig. 2A, whilst the Q signal is modulated on a 2.25 mc/s. carrier in a stage 10 and added to the I signal to form a chrominance signal, Fig. 2B. Delay equalizing circuits 11 and 12 are provided in the Y and I channels. A switch 16 operated at line frequency by synchronizing signals from source 17 applies the luminance signal Y and the chrominance signal I and Q to a magnetic recorder 20. In reproducing apparatus, Fig. 4, the output of the recorder, Fig. 3A, is applied to an arrangement comprising switch means SW, which is operated at line rate by synchronizing signals separated from the reproduced signals by separator circuit 28, and a one-line duration delay circuit 24. The result is a continuous sequence of luminance signals, Fig. 3B, comprised alternately of original and delayed signals Y and Y<SP>1</SP>, together with a continuous sequence of chrominance signals, Fig. 3C, comprised alternately of delayed and original signals I<SP>1</SP>+ Q<SP>1</SP> and I+Q. The chrominance signal is separated into its I and Q components by a stage 27, the Q channel including a demodulator 32. Equalizing delay circuits 25 and 38 are included in the Y and I channels. A matrix 26 converts the Y, I and Q signals to R, G and B signals which are applied to a colour picture reproducer 37.
Patent GB-308085-A (GB)
Title: Improvements in or relating to thermionic generators and the like
IPC: H03B5/10
Filed: 1928-03-19
Abstract: 308,085. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). March 19, 1928. Thermionic generators and amplifiers.-Thermionic oscillation generators, of the self-excited or separately-excited types, have one or more discharge tubes connected in the grid-leak circuit, the breakdown voltage of these tubes being at least equal to the required minimum negative grid voltage, and a voltage source at least equal in value to the breakdown voltage is connected in parallel with the tube or tubes. As shown in Fig. 2, the grid circuit of the valve 1 is coupled through the coil 6 to a master oscillator. The grid leak path comprises a choke coil 7, a resistance 8, and one or more sets of glowdischarge tubes 9, 15 with separate series resistances 18, 19. When the valve 1 is in operation, the grid becomes more and more negative until the tubes break down. Should the valve cease to operate, the grid is held negative by the transformer 14 and rectifier 13 which are connected. in series with a resistance 12 across the discharge tubes 9, 15. The transformer 14 may be fed from mains. The negative bias is smoothed by a condenser 26. A battery may replace the transformer 14 and rectifier 13. For the selfexciting oscillator shown in Fig. 3, the glowdischarge tubes may be replaced by a triode valve 21, the grid 23 of which is negatively biased by a battery 25 so as to pass current only when the grid voltage of the main valve 1 has reached a required value.
Patent GB-808462-A (GB)
Title: Systems responsive to changes in the viscosity of a flowing liquid
IPC: G01N11/08
Filed: 1957-03-13
Abstract: 808,462. Automatic viscosity control systems. FOXBORO CO. March 13, 1957 [March 15, 1956], No. 8348/57. Class 38 (4). [Also in Groups XXIX and XXXVI] In a device for measuring and controlling viscosity two flow meters are used, one responsive only to speed of flow and the other to speed of flow and viscosity, the response of one meter being held constant so that the other gives an output which is a direct indication of viscosity. As shown, the fluid under test, which may be a pulp suspension in water, flows in a pipe 10; the viscosity may be varied by adding water under the control of valve 12. Part of the flow enters a measuring pipe 10b which contains an electric induction flow gauge producing an electric output dependent only on flow, and a differential pressure gauge producing an output dependent on both flow and viscosity. Differential pressure device 27 responds to the pressure across nozzle 16 to produce a pneumatic signal which through a conventional control instrument 29 adjusts a valve 17 to vary the flow to maintain the differential pressure constant. The change of flow velocity is sensed by the induction gauge 15 the change in indication of which indicates the change of viscosity of the liquid and is indicated at 23 and may adjust, through pneumatic connection 24, water valve 12 to maintain the viscosity in the supply pipe constant. In a modification (Fig. 3, not shown) the position of the differential pressure gauge and the induction flow gauge are interchanged, valve 17 being operated by the induction gauge and valve 12 by the differential pressure gauge.
Patent GB-1129436-A (GB)
Title: Improvements in or relating to bonded bodies of foamed material, and processes and arrangements for their manufacture
IPC: A47C27/15
Filed: 1967-02-22
Abstract: 1,129,436. Mattresses &c. SEMPERIT OSTERREICHISCH AMERIKANISCHE GUMMIWERKE A.G. 22 Feb., 1967 [29 June, 1966], No. 8402/67. Heading A4M. [Also in Division B5] Foamed material, suitable for use as upholstery, consists of a layer (1) of foamed rubber latex having inserts (2) of foamed plastics material, e.g. foamed polyurethane, on one face in place of the usual cavities.
Patent GB-724714-A (GB)
Title: Propylene glycol bis(bromoacetate)
IPC: C07C69/63
Filed: 1953-03-26
Abstract: The invention comprises a -propylene glycol bis-(bromoacetate) The compound is prepared by reacting one molecular proportion of a -propylene glycol with at least two molecular proportions of monobromoacetic acid, preferably at a temperature between 50 DEG  and 150 DEG  C. and in the presence of an esterification catalyst. Concentrated phosphoric and sulphuric acids and toluene sulphonic acid are the catalysts mentioned.  Preferably the reactants and catalyst are mixed in a water-immiscible solvent, e.g. toluene or ethylene dichloride and conveniently the reaction is carried out at the boiling point of the reaction mixture when the water produced and the solvent are distilled off and the latter is recycled.  In an example a -propylene glycol and monobromoacetic acid are dissolved in ethylene dichloride, and heated with a sulphuric acid catalyst water, solvent being distilled off and the latter recycled.  The product may be used in plastic or herbicidal compositions (see Group VI).ALSO:a -Propylene glycol bis (bromoacetate) (see Group IV (b)) is soluble in organic solvents and an active ingredient in contact herbicidal compositions.
Patent GB-1487818-A (GB)
Title: Overhead transportation system
IPC: E01B25/00
Filed: 1975-02-28
Abstract: 1487818 Railway systems; elevated railways C B ELORZA 28 Feb 1975 [5 April 1974] 8489/75 Heading B7L An overhead transportation system comprises a plurality of pillars 2 carrying upper and lower track rails 3 of U-shaped transverse cross-section with their open sides facing each other, both rails being engaged by guide wheels 8 and the lower rails by traction wheels 10 of a train of articulated vehicles 5, wherein one end of each vehicle 5 is connected to the adjacent vehicle 5 at that end by a vertical pivot shaft 9 and the other end of each vehicle is connected to the adjacent vehicle 5 at that end by a horizontal shaft 11, whereby the vehicles can negotiate horizontal and vertical curves in the track. Pairs of rails 3 may be provided on opposite sides of the pillars and pairs of rails 3 may be arranged above each other at each side of the pillars to support trains one above another. Seats 12 are provided in each vehicle 5 and are tiltable independently of the vehicle body by hydraulic drives. Wheels 13 are provided on the vehicles 5 to engage platforms at stations.
Patent GB-767211-A (GB)
Title: Improved method of bushing machine and other parts and bush assemblies therefor
Inventor: CROSS ROLAND CLAUDE
IPC: B21K1/04
Filed: 1954-03-24
Abstract: 767,211. Bolt-hole bushes. CROSS MANUFACTURING CO. (1938), Ltd. March 25, 1955 [March 24, 1954], No. 8591/54. Class 89 (1). [Also in Group XXXIV] A bolt-hole bush for lining a hole 2 in a machine or other part 1 to receive a pin, bolt, &c., comprises a wire coil 4 providing on its exterior a screw-thread 3 engaging a similar thread in part 1, and on its interior a parallel bore 5. A groove may be formed in the face 5a of the wire along the entire length of the coil to serve as a lubricant reservoir.
Patent GB-964819-A (GB)
Title: Improvements relating to the gasification of solid fuel
Inventor: STEVENS BRIAN GEORGE
IPC: C10J3/08
Filed: 1962-03-06
Abstract: A process for gasifying fuel, e.g. pulverized coal, coke, lignite, or peat, comprises bringing the fuel into close contact with liquid slag in a rotating bowl-shaped container 1, Fig. 1, which is divided into two chambers 18 and 19 by a partition 17 so that the slag passes under each chamber in turn.  Steam for gasification is supplied to the slag and fuel in one chamber, and air to the other, to burn the remainder of the fuel and provide heat for the process.  The gaseous products are withdrawn separately at 20, 21 down the two chambers. The excess slag that is not kept up by the rotation of the container is removed at the slag outlet 37.  The gaps between the moving parts are adjustable and may be kept clear of slag by steam jets. The steam and air may be supplied through the partition 17.  Variations of the apparatus <PICT:0964819/C4-C5/1> are described in which the excess slag is removed at the rim of the container by the rapid rotation of the container or by the splashing caused by the injection of the reactants. Specification 666,119 is referred to.
Patent GB-861571-A (GB)
Title: A new derivative of toluene-3:4-dithiol and methods of preparation and use thereof
IPC: G01N31/22
Filed: 1956-03-22
Abstract: The invention comprises S-diacetyltoluene-3,4-dithiol which is made by treating dithiol in caustic soda with acetic anhydride at 0 DEG C. in an inert gas atmosphere.  From the above diacetate dithiol may readily be liberated and used to detect and estimate metals either with or without the addition of hydrogen sulphide. A solid mixture useful for the above purpose comprises thioacetamide, or other source of hydrogen sulphide and 0.1-25%, preferably 0.5-5%, of diacetyldithiol.ALSO:The invention comprises S-diacetyltoluene-3,4-dithiol, from which dithiol may readily be liberated, for use in the detection, estimation, separation and purification of metals and their compounds.  In aqueous solution dithiol, and in some instances its S-mono- or di-acetates, form highly coloured complexes with thiophilic metals.  Liberation is effected by treatment with alcoholic potash and standard solutions for volumetric analysis may be prepared.  The use of the diacetate as a source of dithiol, has the advantage that reactions may be effected in acid and alkaline media.  The reagent also aids in the coagulation of precipitated metal sulphides and sulphur and may thus be used in conjunction with hydrogen sulphide, which may be supplied from a solid source such as thioacetamide, as an aid to coagulation. 1-8-Dimercapto-naphthalene may also be present as a coagulant. Precipitates are also obtained from solutions of metal compounds in aqueous pyridine.  Complexes of the following metals are described:-palladium (ii), tellurium, gold, tungsten (vi), rhenium (vii), osmium, rhodium, arsenic, iridium, ruthenium, germanium, copper (i) and (ii), mercury, silver, antimony, tin, molybdenum, platinum, bismuth, cobalt, lead, cadmium, thallium, nickel, zinc, iron (ii), gallium, indium, manganese and vanadium. Examples illustrate detection, estimation, separation and purification processes applied to certain of the above metals and their compounds and the purification of sodium chloride from potassium compounds, magnesium sulphate from heavy metals, bismuth chloride from tellurium and the removal of iron, nickel, copper and cobalt from sodium or potassium carbonates, barium, sodium or potassium hydroxides and di- or tri-sodium or potassium phosphates.ALSO:S-Diacetyltoluene-3,4-dithiol, from which toluene-3,4-dithiol may readily be liberated, is used as a dressing for ores prior to flotation.
Patent GB-611540-A (GB)
Title: Improved method of manufacturing a selenium blocking-layer cell
IPC: H01L21/10
Filed: 1946-03-22
Abstract: 611,540. Asymmetrically-conducting resistances. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 22, 1946, No. 8918. Convention date, July 24, 1941. [Class 37] To prevent spreading or uneven formation of the selenium layer during the heating process when the selenium is converted to the crystalline stage, a covering layer is formed on the surface of the selenium by washing in a basic liquid which dissolves selenium, such as quinoline or a solution in water of alcohol having an alkaline reaction. These liquids slightly dissolve the selenium superficially and cause the appearance of a blocking layer whilst converting the surface layer into the crystalline form which remains intact during the heating process and contains the lower layers of selenium when passing through the liquid stage. Specification 522,755 is referred to.
Patent GB-1246874-A (GB)
Title: Lead screw and nut mechanism
IPC: F16H25/20
Filed: 1969-02-19
Abstract: 1,246,874. Screw-and-nut gearing. GERBER SCIENTIFIC INSTRUMENT CO. 19 Feb., 1969 [28 Aug., 1968], No. 8983/69. Heading F2Q. The carriage 26 of a co-ordinate plotter is operated by a lead screw 10 engaging two drive nuts 16 carried by bearing supports 18, 20, one or both of the nuts being capable of rotation to eliminate backlash. As shown both nuts are releasably secured to the supports by bolts 52 passing through arcuate slots in the nuts which permit limited rotary adjustment of the nuts. The latter may be made from plastics material.
Patent GB-1363965-A (GB)
Title: Process and apparatus for the continuous dearsenification of poly phosphoric acid
IPC: C01B25/24
Filed: 1972-02-28
Abstract: 1363965 Gas/liquid contact to dearsenicate polyphosphoric acid KNAPSACK AG 28 Feb 1972 [3 March 1971] 9046/72 Heading B1F [Also in Division Cl] Polyphosphoric acid is dearsenicated by treatment with hydrogen sulphide by passing the polyphosphoric acid via 1 into packed tower 2 where it flows down at such a rate as to remain in tower 2 for 1-5 hours and is contacted there by hydrogen sulphide introduced through pipe 5, and the treated polyphosphoric acid is then passed via 8 to degasification tower where residual hydrogen sulphide is removed by compressed air from nozzles 11 in gas pipe 10, the temperature being maintained in the apparatus by heating jacket 14 at 80-140‹C, and dearsenicated polyphosphoric acid is withdrawn at 13 and subjected to filtration.
Patent GB-726111-A (GB)
Title: Improvements in or relating to fibre treating machine
IPC: D01B9/00
Filed: 1953-04-02
Abstract: <PICT:0726111/IV (c)/1> <PICT:0726111/IV (c)/2> <PICT:0726111/IV (c)/3> <PICT:0726111/IV (c)/4> <PICT:0726111/IV (c)/5> In a fibre-treating machine comprising an elongated trough, fibre stalks are moved across with their length along the trough, the stalks being gripped at one end by a narrow wheel and liquid is arranged to flow over the stalks and through the trough to affect degumming, washing or bleaching.  Stalks 251, Fig. 2, are passed through the machine by means of an endless belt 50 passing over a roller 20 which is driven from a motor 178, gear-box 181 and chains 188, 194 and 199, Fig. 3. The belt is supported by further rollers 36...42 and formed into troughs 136...139, Fig. 1, by thin-spoked rubber - tyred wheels 116...119, pressing against the surface.  Paddles 169 mounted on a chain 168, Fig. 4, are driven from a shaft 151 rotated by a chain 214.  A pipe 219 with a large nozzle 222 leads treatment fluid over the stalks gripped at their ends by wheel 117, the paddles being moved at a rate in excess of the liquid flow to build up crests and hollows.  A second pair of paddles, Fig. 5, and associated chain 176 are also driven from the shaft 151 while two similar pairs of paddles and chains 164, 172 are driven from a second shaft 140 rotated by chains 202, 212.  As the stalks progress through the machine they are gripped first at one end by wheel 116, then at the opposite end by wheel 117, the end gripped alternating with wheels 118 and 119.  In a similar manner each of the chains and associated paddles rotate to drive the liquid away from the end of the stalk which is being gripped. After passage under a spring-loaded roller 51 the stalks leave the machine.  A projecting lip 225 catches the liquid leaving the side of the belt 50, Fig. 4, which passes through a filter 230 to a tank 11 from which it is pumped through pipe 238 to recirculate through pipe 216.  The paddles 169 may have an alternative construction, Fig. 7 (not shown).
Patent GB-1247795-A (GB)
Title: Process for increasing the molecular weight of elastomers
IPC: C08C19/44
Filed: 1969-02-20
Abstract: 1,247,795. Increasing molecular weight of active elastomers. FIRESTONE TIRE & RUBBER CO. 20 Feb., 1969 [11 March, 1968], No. 9344/69. Heading C3P. The molecular, weight of an alkali-metal active elastomer, obtained by polymerization of a diene in the presence of an alkali metal or hydrocarbyl derivative thereof, is increased by treatment with a phosphazene of formula (PNCl 2 ) n , where n is 3 or 4. In examples the polymers obtained using n-butyl lithium as catalyst and treated with the phosphazenes are polybutadiene, polyisoprene, butadienestyrene, isoprene - styrene copolymers and butadiene - isoprene - styrene terpolymer; polybutadienes obtained using n-butyl compounds of sodium, potassium, rubidium or cesium and similar treated are also exemplified.
Patent GB-590146-A (GB)
Title: Improved raking mechanism for the screens of sewage and like apparatus, and means for automatically cleaning the raking device
IPC: E02B8/02
Filed: 1945-04-16
Abstract: 590,146. Straining liquids. FARRER, Ltd., W. E., and DAVIS, C. April 16, 1945, No. 9395. [Class 16] Rake mechanism for cleaning screens in apparatus for treating sewage, trade wastes &c. comprises a reciprocating carriage carrying a pivotally-mounted or angularly-movable raking device which is caused by a cam or projection to be moved towards the bars of the screen at or near the end of its downward movement, being returned in its operative position by a catch or retaining device until it is released or caused to swing back from its screen-raking position at or near 'the end of its upward movement, or after it has left the screen. In the construction shown, a raking device 3 for removing screenings from the bars 1 of a screen is mounted on a carriage 2 which is reciprocated between guides 4 by means comprising a cable 17, a winding drum 18, and a reversible electric motor 19. The carriage comprises side members 5 connected by crosstubes 6, 7. The raking device 3 is pivotally mounted on the tube 7 and comprises two sideplates, each in the form of a bell-crank lever, the lower arms 11 of which are joined by a bar 12 provided with prongs 13. Fixed to the tube 7 is a rake-cleaning plate 15. As the carriage 2 moves downwardly the raking device 3 is in the inoperative position until a roller 20 comes into contact with a stop 21 on the guide 4, whereupon the raking device is moved so that the prongs 13 engage the screen 1, the device 3 being held in the operative position by means of a catch 23. The stop 21 prevents further downward movement of the carriage 2 so that the cable 17 slackens allowing a balance weight 30 hung from a roller 29 to fall and operate a reversing switch 32. The carriage then moves upwardly until a tappet 33 thereon engages a reversing switch 34. Towards the end of this upward movement a cam 25 engages the catch 23, releasing the raking device which is moved by a balance weight 14 to the inoperative position. In a modification the screen is vertical and cam means on the carriage guides are provided for moving the raking device positively into the operative and inoperative positions.
Patent GB-571022-A (GB)
Title: Improvements relating to flexible pipe connections or conduits
IPC: F16L27/10
Filed: 1943-06-11
Abstract: 571,022. Exhaust systems. CHICAGO METAL HOSE CORPORATION. June 11, 1943, No. 9450. Convention date, June 11, 1942. [Class 7 (ii)] [Also in Group XXVIII] A flexible pipe for hot gases, particularly an aircraft engine exhaust pipe, comprises rigid sections 20, 27, a corrugated or other flexible section 23 connected -to the rigid sections and a tubular baffle 22 rigidly connected to the section 20 to protect the flexible portion from the hot gases. The baffle 22 may be slightly tapered in the direction of flow of the gases. More than one flexible section may be provided. In a modification, the baffle 20a, Fig. 4, is integral with and of the same diameter as the pipe section 20 and has a collar 40 to which the flexible section 23 is welded, openings 43 being provided therein for the admission of cooling air.
Patent GB-496025-A (GB)
Title: Sighting instrument for measuring angles
IPC: G01C1/00
Filed: 1938-03-28
Abstract: 496,025. Sighting - apparatus for measuring angles. KARIKOSKI, A. A. March 28, 1938, No. 9458. [Class 97 (ii)] Sighting means, e.g. telescopes or pairs of sighting vanes, are carried respectively by a ring shaped frame 1 hinged to or adapted to be attached to the base plate of a stand and having its opening provided with a transparent plate 11 and by a plate 14 rotatable on the frame 1. As shown, each sighting vane is provided with a pin 13 for using when the frame 1 is detached from the stand and applied to a chart. The frame 1 or plate 11 is provided with a ring of graduations 2 and the plate 14 with co-operating verniers 20, 21. Diameter lines 12, 12a are marked on the plates 11 and 14 respectively. The base plate of the stand may have a recess containing a magnetic compass.
Patent GB-844073-A (GB)
Title: Improvements in or relating to hydraulic servo-assisted steering-gears for automobiles
IPC: B62D5/24
Filed: 1957-03-22
Abstract: 844,073. Vehicle power steering. REGIE NATIONALE DES USINES RENAULT. March 22, 1957 [March 29, 1956], No. 9478/57. Class 79(5). A power - assisted steering mechanism comprises a cylinder in which two communicating chambers 40, 41 are formed by a piston 28, a valve 27 controlling the pressure in the chamber 41, and a valve 21 controlling the pressure in the two chambers. Fluid from a pump 2 is supplied through a regulating valve 5 and a line 7 to the chamber 41 from which it passes through an opening "j" controlled by the valve 27 to the chamber 40. The latter is connected to the return side of the pump through a bearing 20, an opening 51 controlled by the valve 21, a passage 47, a space 43 and a line 12. Rotation of the steering column in one direction closes the valve 27 to produce an increase in pressure in the chamber 41 and displace the piston 28 to the right while rotation in the opposite direction closes the valve 21 and causes the piston to move to the left by virtue of the difference in area between its two faces. The piston is connected to the rack 30 of the steering gear and steering is effected manually until the steering resistance is sufficient to overcome the loading of springs 26 and 33 for the valves. A valve 11 permits the fluid to circulate within the casing 8 during manual actuation in the event of a pressure failure. Alternatively, the valve 5 may be arranged to connect the line 7 to a reservoir 4 when there is no output from the pump. A safety valve 10 is provided.