baber/WOPTO huggingface dataset:
Patent GB-1350724-A (GB)
Title: Ramp generator for a chart recorder
IPC: H03K4/56
Filed: 1972-05-03
Abstract: 1350724 Locating faults in cables TEKTRONIX Inc 3 May 1972 [28 June 1971] 20528/72 Heading H4D [Also in Division G1] Recording-apparatus includes a (slow) ramp generator 18 which comprises driving means 16 driving recording media 12 and a detector 52, 54 detecting its speed, a converter 64 producing an analogue signal 65 proportional to the output 55 of the detector, an integrator 82, 84 integrating a signal applied to its input, a comparator 66 comparing the outputs of the converter 64 and integrator 82, 84 to produce an error signal 67 and feed back means 70, 72, 76 for applying the error signal 67 to the input of the integrator to control its input signal. When a switch 50 is closed a motor 16 drives a record strip 12, a cam 52 coupled to the motor 16 actuates a pulse generator 54 to produce pulses 59 of width 10 ms at a frequency proportional to the speed of the strip 12 and the pulses 59 are counted by a six stage binary counter 60. The counter 60 is reset whenever the switch 50 is closed to start the motor 16 and control circuit 20 stops the motor 16 when a count of 60 is reached. Normally closed switches 74, 86 are opened by control circuit 20 at a count of 50 and a slow ramp signal 19 having 50 calibrating points appears at output 88. In place of the cam 52, holes (116) along an edge of the strip 12 cooperating with contacts (118, 120) may be used to switch the pulse generator 54. To produce sampling signals, fast and slow ramp signals 23, 19 from generators 22, 18 are applied to a strobe comparator 26 which produces an output signal 29 whenever they coincide. In response to the signals 29, signal sampling means 32 provides samples of input data, the magnitudes of which are recorded on the strip 12. Applied to time domain reflectometry for measuring signal propagation characteristics of a high frequency transmission line 10 or a transient response to an electronic apparatus, the line 10 may be a coaxial cable transmitting television signals which is to be tested, e.g. to locate discontinuities. Signals from any desired portions of a coaxial cable 10 can be recorded on the strip 12 by adjusting the amplitude and the D.C. offset level of the slow ramp signal.
Patent GB-1364332-A (GB)
Title: Process for the preparation of hexaalkoxyphosphazenes
Inventor: BIK J
IPC: C07F9/6593
Filed: 1972-05-03
Abstract: 1364332 Preparing hexaalkoxyphosphazenes AKZO NV 3 May 1972 [17 May 1971] 20533/72 Heading C2P Hexaalkoxyphosphazenes are obtained by (1) reacting PCl 5  and NH 4 Cl in the presence of chlorobenzene as solvent, (11) separating the solid components from the reaction mixture and reacting the liquid portion with an alkanol and pyridine to form a mixture containing hexaalkoxyphosphazene and pyridine hydrochloride, (iii) treating the latter mixture with an alkali metal hydroxide in water, (iv) separating the resulting aqueous fraction containing pyridine from the organic fraction, (v) separating the organic fraction into hexaalkoxyphosphazene and a chlorobenzene-rich liquid phase, (vi) extracting pyridine from the aqueous fraction with the chlorobenzene rich liquid phase, and (vii) distilling the resulting extract to recover pyridine. The distillation of the extract is suitably effected in such manner as to yield a fraction consisting almost entirely of chlorobenzene and a fraction containing chlorobenzene and at least 90 per cent by weight of the pyridine which fractions can be re-used in the process. The process may be carried out batchwise or in a continuous manner and the PCl 5  may be used as such or formed in situ from PCl 3  and Cl 2  in the presence of chlorobenzene. A detailed example is given of the production of hexaalkoxyphosphazene, the process being described with reference to a flow diagram.
Patent GB-154307-A (GB)
Title: Improvements in fuel feeding and distributing devices for gas producers
IPC: C10J3/30
Filed: 1919-08-21
Abstract: 154,307. Nielsen, H., and Marshall, F. D. Aug. 21, 1919. Charging.-In a fuel-feeding device for gasproducers comprising a hopper having an inverted truncated conical bottom d, fuel is pushed from a rotary table f by adjustably-fixed scrapers i, and is deflected bv an inverted cone k on to a rotary distributor l having the form of the portion of a cone cut off by a plane oblique to the axis. The rotary shaft g, the table and distributor, and the lower portion of the hopper casing may be hollow for the circulation of cooling- water.
Patent GB-414770-A (GB)
Title: Improvements in dyeing acetyl-cellulose and mixed materials containing acetyl-cellulose
IPC: D06P3/42
Filed: 1933-01-04
Abstract: Cellulose acetate, dyeing; dye preparations.--Acetylcellulose or a mixed material containing it is dyed in an acid bath, prepared with water of any hardness, by means of water-insoluble dyestuffs finely dispersed with a water-soluble condensation product (or a water-soluble salt thereof) from a b -halogen-derivative of ethane sulphonic acid or from isethionic acid, ethionic acid or carbyl sulphate and an aliphatic carboxylic acid or a halide thereof containing more than 8 carbon atoms in the molecule.  The condensation products may be obtained as described in Specification 366,916.  In an example, a mixed fabric of acetate artificial silk and natural silk is dyed with a preparation obtained by mixing a blue aminoanthraquinone dyestuff insoluble in water, e.g. Setacyl Direct Blue 2 GS, the condensation product from oleic acid chloride and isethionic acid, an acid wool azine dye, e.g. Novazol Blue B and Glauber salt. Specification 412,945 also is referred to.  The Specification as open to inspection under Sect. 91 comprises also the use of condensation products from hydroxy-, amino- or halogen-derivatives in general of ethane sulphonic acid and specifies taurine.  This subject-matter does not appear in the Specification as accepted.
Patent GB-583406-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L37/086
Filed: 1944-10-24
Abstract: 583,406. Pipe couglings; expelling fluff. SCOVILL MANUFACTURING CO. and WINTER, W. J. Oct. 24, 1944, No. 20631. [Classes 8 (ii) and 99 (i)] [Also in Group XXIX] In a detachable pipe coupling of the type in, which a spigot 12 is secured with a socket 13 by means of pawls 31 pivotally attached to the socket engaging a groove 30 in the spigot, the groove is considerably wider than the thickness of the pawls to ensure relative axial movement between spigot and socket after coupling. A valve member 23 is held by pressure in the pipe 21 against the resilient seat 20 when coupling is effected. Further movement of the spigot into the socket raises the valve from its seat by engagement of the spigot end with the projection 20. The coupling may be used in an air line for blowing fluff from cotton bobbins, an adapter 36 having a' nozzle 37 to centre the bobbin on a seating washer 38 being secured to the spigot 12. The adapter may be of socket formation in which the bobbin is located on a seating washer. The adapter and spigot may be integrally connected. Specification 477,348 is referred to.
Patent GB-182017-A (GB)
Title: A device for removing stones and other foreign bodies from between the twin tyres of road-vehicles
IPC: B60S1/68
Filed: 1921-08-04
Abstract: 182,017. Smith, G. Le Blanc-. Aug. 4, 1921. Tools for removing stones from tyres.-A prizing-tool for removing stones that have become wedged between twin tyres consists of a bar 1, bent at one end 4 and at the other end provided with a handle 3 by which it is turned.
Patent GB-953458-A (GB)
Title: An improved mould release agent
IPC: B29C33/64
Filed: 1960-06-13
Abstract: A hardenable composition comprises a mixture of a silicone resin and an alkyl zirconate of general formula Zr(OR)4 where OR is an alkoxy radical. Specified silicone resins are organo-polysiloxanes the organic radicals of which are methyl or methyl and phenyl radicals with a ratio R/Si of between 1.3 and 1.8.  The example discloses the admixture of a mixture of methyl and phenyl siloxanes with ethyl orthosilicate, butylzirconate and toluene, the mixture being mixed with a chlorinated hydrocarbon as propellant and used in aerosol form for coating steel moulds.ALSO:Steel moulds are coated with an aerosol containing as propellant a chlorinated hydrocarbon together with a mixture of methyl and phenyl siloxanes, ethyl orthosilicate, butyl zirconate and toluene.
Patent GB-356374-A (GB)
Title: Improvements in charge-mixing devices for internal combustion engines
IPC: F02M1/00
Filed: 1930-07-09
Abstract: 356,374. Mixing and atomizing charge ; admitting auxiliary charges ; regulating. WOOLLISCROFT, J. H., 1, King Edward Street, Liverpool. July 9, 1930, No. 20761. [Classes 7 (ii) and 7 (vi).] A charge - mixing and atomizing device comprises a ported cage located within the inlet pipe, and containing a number of loose balls capable of freedom of movement within the cage. The cage 1, Fig. 1, is screw-threaded at 4 to receive two elbow fittings 2, 3 through which the mixture passes. The lower end of the cage is conical, and ported, and carries the balls 8, the upper end also being ported. The balls are displaced by suction and provide spaces for the passage of mixture; they also become coated with fuel and thus provide means to facilitate starting and acceleration. In a modification, Fig. 4, the lower end of the cage is formed with helical blades 9 to whirl the mixture, and the wall of the cage may have ports 10 opening into a chamber 11 communicating with the atmosphere or the carburetter float chamber so that additional air or fuel may be admitted. The inlet pipe to chamber 11 may be provided with a non-return ball valve. In a further modification, the cage has a flange adapted to be clamped between the flanges of the carburetter and induction pipe. The whole device may be heated by hot water, hot air, or electrically. By suitably choosing the number of balls, the device may function as a governor, the balls rising on increased flow to close more or less the slots in the upper end of the cage.
Patent GB-959262-A (GB)
Title: A process for the production of cellular polyurethane plastics
IPC: C08G18/64
Filed: 1962-05-30
Abstract: A process for the production of cellular polyurethane plastics comprises reacting an organic polyisocyanate with a polyester containing hydroxyl groups in a reaction mixture containing a blowing agent, the polyester being prepared by reacting.  (a) a polyhydric alcohol and (b) a monosaccharide or oligo-saccharide having at least 4 carbon atoms in the molecule with (c) a polycarboxylic acid. A polyhydroxyl compound not prepared from a mono- or oligo-saccharide may also be included in the reaction mixture. The polyester may be a halogenated compound obtained by using an unsaturated polycarboxylic acid in a first step and then halogenating the product. The polycarboxylic acid used to prepare the polyester may be mixed with a monocarboxylic acid containing 5 to 20 carbon atoms in the molecule. Listed are monosaccharides (tetroses, pentoses, hexoses and heptoses), disaccharides, trisaccharides, tetrasaccharides, degradation products (of M.W. below 3,000) of starches and cellulose, modified mono- and oligosaccharides and their glycerides, cyclic acetals or acylates. As polyhydric alcohols are specified saturated and unsaturated diols, glycerol, trimethylol-ethane or propane, pentaerythritol, mannitol, sorbitol, hydroxy alkylated polyphenols. Suitable mono polycarboxylic acids are also listed.  The polyesters preferably have an acid number below 50 and a hydroxyl content of from 3% to 20%. They may be used together with polyesters, polyhydric polyalkylene ethers, polyhydric polythio-ethers and polyacetals. Aromatic, aliphatic and heterocyclic polyisocyanates specified include those containing azo, sulphone, alkoxy, NO2, and Cl groups and also p-isocyanatophenyl phosphoric and thiophosphoric acid tri-esters.  Blowing agents which can be used alone or in conjunction with water are azo compounds, hydrocarbons, halogenated methanes or ethanes and vinylidene chloride. As catalysts amines, tin (II)-acylates, dialkyl-tin-acylates, acetylacetonates of heavy metals and molybdenum glycollate. Emulsifiers and silicones may also be added. In Example (1) polyester used is prepared from diethylene glycol, adipic acid and cane sugar in the presence of titanium tetrabutylate. Others are obtained from (A3) diethylene glycol, cane sugar and adipic acid reacted in the presence of titanium tetrabutylate and HBF4 and then further reacted with rape oil fatty acid; (A4) diethylene glycol, cane sugar and phthalic acid with HBF4; (A5) as (1) but using sebacic acid; (A6) the product of (A3) which is further reacted with bromine. In Example (8) a polyester from diethylene glycol, adipic acid and lactose is reacted with permethylated diethylene triamine, dibutyl tin dilaurate, polysiloxane polyalkylene glycol ester, aqueous sodium castor oil sulphate and diphenylmethane -4, 41- diisocyanate to give a foam; (9) glucose replaces the lactose of (8).
Patent GB-1287165-A (GB)
Title: Circuit arrangement for rhythmic selective operation of separate magnets of a group
IPC: B41J9/50
Filed: 1970-04-30
Abstract: 1287165 Selective operation of electromagnets PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 30 April 1970 [3 May 1969 6 May 1969] 20868/70. Heading H3T [Also in Division G4] Magnets 5<SP>1</SP>, for example of the column of punches of a mosaic type printer, are selected by triggerable semi-conductor switches 5 and energization is controlled, e.g. via amplifier and switch circuit 3, 4, by a monostable circuit 1<SP>1</SP>, 1<SP>11</SP> having a timing resistor 7 connected to the energizing supply for the magnets so that if the supply voltage decreases due for example to an increase in the number of magnets in use over a period of time, the duration of energization is increased. More uniform printing is thus obtained. Further uniformity is provided if the timing circuit also includes a transistor 10 controlled by a summing circuit 10 providing a voltage indicating the number of magnets being selected.
Patent GB-206219-A (GB)
Title: Improvements in and relating to combined tractor and trailer vehicles
IPC: B62D13/00
Filed: 1922-07-31
Abstract: 206,219. Page, G., and Dewing, L. July 31, 1922. Drawings to Specification. Braking.-In a six-wheeled vehicle in which a load-carrying body is supported by means of turntables upon a four-wheeled tractor and a twowheeled trailer, the trailer wheels may be braked by a flexible connection led through the forward turntable pivot or guided between V rollers underneath the pivot.
Patent GB-1116010-A (GB)
Title: Improvements in gardening implements
Inventor: ASQUITH BRIAN ANTHONY
IPC: A01G3/06
Filed: 1966-05-12
Abstract: 1,116,010. Shears; handles. BRADES SKELTON & TYZACK Ltd. 27 April, 1967 [12 May, 1966], No. 21110/66. Headings B4B and B4K. A pair of edging shears comprises a pair of blade members 10, 11 pivotally connected about an axis 9, each blade member having an arm 10a or 11a terminating in a tang 12 of rectangular cross-section which is a force fit in a rectangular bore 13 in a plug 14 of a resilient synthetic plastics material, e.g. polypropylene, the plugs, which are of circular cross-section, being a force fit in the open ends of metal handles 15. Each plug has an enlargement 16 providing a shoulder 17 to limit the extent by which the plugs can be moved into the bores of the handles and the enlargements also afford co-operating stop means limiting the extent by which the handles can be moved together. Each tang has a shoulder 18 arranged to contact an end face 19 of the associated plug 14 to limit the extent by which each tang can be moved into the corresponding bore of the associated plug.
Patent GB-927418-A (GB)
IPC: B62D11/12
Filed: 1961-06-12
Abstract: 927,418. Motor vehicle driving gear. P. P. RICHARD. June 12, 1961 [Aug. 12, 1960], No. 21115/61. Class 79(2) [Also in Group XXIV] A track-laying tractor has an engine supercharged by a compressor driven by a differential inserted between the engine and its load, the engine driving a torque converter through epicyclic gearing. By this means, a wide range of driving speeds can be obtained. In the Figure, the output shaft 2 of an engine 1 drives the planet carrier 3 of an epicyclic gear, the sunwheel 6 of which drives a supercharger 9 through gears 7, 8, while the ring gear 4 is connected to a useful output shaft 5. This shaft drives the planet carrier 10 of a further epicyclic gear, the sun wheel 12 of which is connected to a shaft 16 driving the vehicle endless track mechanism. The ring gear 11 drives the impeller 15 of an hydraulic torque converter, the turbine 13 of which is connected to shaft 16. Driving of the supercharger by the first epicyclic gear enables the engine to drive shaft 5 at full power within a speed range with a maximum about two and a half times the minimum. The second epicyclic gear and torque converter arrangement permits the ratio between the speeds of shafts 5 and 16 to vary by a factor of about 1À6 in dependence on the load so that the speed of shaft 16 may vary between a maximum of about four times the minimum, in dependence on the load, and manual changespeed gearing is unnecessary.
Patent GB-1479660-A (GB)
Title: Fuel ignition systems
IPC: F23N5/20
Filed: 1974-05-14
Abstract: 1479660 Burner controls SINGER CO 8 May 1975 [14 May 1974] 21203/74 Heading F4T A fuel ignition control circuit comprises switching means B1, operable upon actuation to cause fuel to be supplied to a burner 14 and to cause ignition of the fuel at the burner, a capacitor 34, actuating means 36 operable to feed the charge from the capacitor to the switching means B 1 to cause actuation of the latter when the capacitor is fully charged and maintain the switching means B1 actuated for as long as the current fed by the capacitor 34 to the switching means B1 remains above a predetermined level, flame sensing means 62 responsive to the presence of a flame at the burner to supply the switching means B 1 with energizing current from a power source 10 and to disconnect it from the capacitor and thereby to maintain the switching means actuated for as long as the flame is sensed, and means 26, 28, 32, for continuously supplying a charging current to the capacitor, the charging current supplied having a level below the predetermined level, whereby if no flame is sensed before the energizing current from the charging means B1 is deactivated. In operation, A.C. source 10 charges capacitor 34 through half wave rectifier 26, 28, and resistor 32, with thermostat switch 40 open, and gas valve 2 closed. When the ambient temperature drops, switch 40 closes and capacitor 34 discharges through a relay A which is energized for a predetermined period, and its contacts A1, A2, close to thus supply current from source 10 through contacts B2, and line 82, to both igniter 12 and valve control unit 4. Valve 2 opens and the burner 14 is ignited. If necessary repeated attempts to ignite upon failure of the burner to light can take place by actuation of a reset switch 36. Flame detector 62 energizes safety relays B, C to operate contacts B1, B2 and C1 to control igniter 12 and gas valve 2.
Patent GB-973842-A (GB)
Title: Improvements in and relating to piezoelectric potential generating devices
IPC: F23D14/34
Filed: 1963-03-12
Abstract: 973,842. Piezo-electric generators. CLEVITE CORPORATION. March 12, 1963 [March 30, 1962], No. 21241/63. Divided out of 973,841. Heading H2A. The subject-matter of this Specification is identical with that described in Specification 973,841 from which it is divided, but the claims are concerned with the volume displacement force multiplying means for applying compressive stress to the piezo-electric element. Specification 970,101 also is referred to.
Patent GB-674796-A (GB)
Title: Improvements in or relating to commutator-motor brush-holders
IPC: H01R39/38
Filed: 1950-08-29
Abstract: 674,796. Brush-holders for dynamo-electric machines. GIAMBONINI, G. Aug. 29, 1950 [Sept. 1, 1949], No. 21330/50. Class 35. In a brush assembly a brush t is acted upon by a pressure-arm a pressing on a metallic sleeve m supported by an insulating elastic insert within a metallic hollow cylinder z freely seated in the brush top, the lead l being connected to the cylinder z. The latter, which has an opening (not shown) for the passage of the free end of the arm d contains a rubber damping-piece h supporting the sleeve m on which the arm d bears. In a modification, the sleeve z has a retaining rib engaging a loop at the free end of the arm a to hold the latter in position as the brush wears away. The insert h insulates the pressure mechanism from the contact-sleeve m.
Patent GB-469159-A (GB)
Title: Improvements in and relating to apparatus for gravity determinations
IPC: G01V7/08
Filed: 1936-08-04
Abstract: 469,159. Automatic control systems. LINDBLAD, A. R. Aug. 4, 1936, No. 21425. Convention date, Jan. 20. [Class 38 (iv)] [Also in Group XIII] Temperature.-An apparatus for determining the force of gravity, of the kind in which a weight'is balanced by a spring or an electric or magnetic field, is placed in a constant temperature enclosure of known type. The movable body 1 is balanced by springs 2 and carries a plate 3, which forms a condenser with another plate 4. The variation in the capacity of the condenser is measured in known manner to indicate variations in the force of gravity. To prevent temperature variations, the apparatus is enclosed in a vessel 5 of good conductivity and large heat capacity, which is provided with a heating winding 6. A bimetallic switch enclosed in the vessel 5 controls the grid potential of a thermionic valve 10, the anode current of which actuates an electromagnetic switch 12 controlling the heating winding 6. The vessel 5 may be filled with a hydrocarbon.
Patent GB-320161-A (GB)
Title: Process of making regenerated cellulose structures
IPC: D01F2/06
Filed: 1928-07-24
Abstract: 320,161. Dunlop, S., (Morse, E. H.). July 24, 1928. Cellulose xanthates, processes for making films and filaments from.-The manufacture from viscose of films, bands, threads &c., but particularly of films, is effected by passing the film &c. through an acidified coagulating solution and then subjecting it to dilute acid under such conditions that the acidity increases as the treatment proceeds, the use of conveying bands or the like being avoided. Thus, a film from viscose may be passed into a coagulating bath comprising a slightly acid solution of ammonium sulphate and thence through three regenerating baths containing successively increasing concentrations of sulphuric acid and decreasing concentrations of salt; the baths are regenerated constantly or intermittently. Suitable baths and conditions of treatment are described. Alternatively, the film may be passed through a single bath in counterflow to a regenerating and coagulating solution, the bath being supplied with acid at the end at which the film leaves and the composition of the bath being suitably adjusted at intermediate points, for instance by addition of salts. After regeneration, the film may be passed through washing, desulphurizing, bleaching, dyeing, and softening baths, as required.
Patent GB-1403187-A (GB)
Title: Extraction of metals
IPC: C22B7/00
Filed: 1972-05-09
Abstract: 1403187 Production of metals HELD AUFBEREITUNGSVERFAHREN GmbH 28 July 1972 [15 Sept 1971 9 May 1972] 43030/71 Heading C7D Metal is extracted from metal-containing material by mixing particles of the material with organic matter and transferring the mixture to a high temperature zone. The amount of organic matter and the temperature of the zone are such as to cause an enothermic reaction to occur in the mixture and to heat the metal produced to at least its melting point the initial temperature of the zone being below the said melting point. The reaction mixture may be compacted and formed into plastic envelopes. Alternatively it may be fed to the furnace as a viscous stream or slurry The organic material may be liquid such as oil, or solid, such as coal, or organic waste products may be used. The production of iron, cobalt, nickel, manganese, tungsten, gold, silver, vanadium titanium, chromium, copper, molybdenum and platinum is referred to.