baber/WOPTO huggingface dataset:
Patent GB-864386-A (GB)
Title: Improvements relating to the compounding of synthetic resins and rubbers
Inventor: SAUL WALTER
IPC: C08J3/21
Filed: 1956-09-14
Abstract: A non-coherent composition based on a thermoplastic synthetic resin or on a rubber is made by distributing, through the particles of a substantially-liquid-free filler, a solution or dispersion comprising a thermoplastic readily fused synthetic resin, not being a partial polyvinyl acetal resin, or a rubber, together with a vaporizable vehicle therefor, but not containing a liquid plasticizer, and heating the mixture to a temperature sufficient to cause at least the greater part of the vehicle to be vaporized, and at least a part of the resin or rubber to be attached to the particles of filler, without effecting agglomeration of the mass.  The filler may be any of those referred to in the parent Specification, preferred fillers being powdered limestone, whiting, precipitated chalk, clay, granite dust, brick dust and asbestos fibres.  The synthetic resin may be polyvinyl chloride or a copolymer of vinyl chloride with vinyl acetate and/or vinylidene chloride in which the vinyl chloride units predominate, a naphthalene-formaldehyde resin, an ester of oxidized colophony or polystyrene, and the rubber may be a butadieneacrylonitrile copolymer, a butadienemethylethyl ketone copolymer or neoprene.  The vaporizable vehicle may be water or an organic solvent such as a hydrocarbon.  The non-coherent compositions may be converted to coherent compositions by compounding with further ingredients if necessary and applying heat and if necessary pressure. In an example a non-coherent composition is formed by spraying a mixture of asbestos fibres and finely-ground limestone with a butadiene-acrylonitrile copolymer latex and heating to drive off the water, the resulting dry fibrous powder being added to a mixture of tar, aggregate and other fillers, heated, applied to a substrate and rolled to produce a fuel-resistant surface suitable for airfield runways.
Patent GB-645019-A (GB)
Title: Improvements relating to the dynamic braking of induction motors
IPC: H02P3/24
Filed: 1947-10-21
Abstract: 645,019. Automatic current control systems. MULLIGAN, J. W., and METROPOLITANVICKERS ELECTRICAL CO., Ltd. Oct. 21, 1947, No. 28140. [Class 38 (iv)] [Also in Group XXXVII] Relates to the dynamic braking of induction motors, one motor-winding being excited with direct-current and the other winding connected to a load resistor. The direct-current excitation is maintained substantially constant at a minimum value when the alternating-current output to the load resistance is below a predetermined value, and is varied so that the ratio of rotor current to stator current is maintained substantially constant when the alternating current output is above said predetermined value. In Fig. 1 (not shown) a torque motor is supplied during braking with a current representative of that in the rotor circuit of the induction motor, and is adapted to adjust a resistor and so control the excitation and output of a direct-current exciter supplying the stator winding of the induction motor. The ratio of rotor to stator current is maintained substantially constant by means, for example, of suitably grading the adjustable resistor or by an appropriate arrangement of the mechanical coupling between the torque motor and resistor. The rheostat or other means controlling the output of the exciter is arranged so that, when the rotor current falls below a certain value, a pre-determined minimum field strength is maintained in the exciter. In Fig. 2 currents respectively representative of the rotor current of the induction motor and the direct exciting current are applied to separate windings of a relay BR, which, if the two currents are not balanced, operates to close a reversing switch RS. This switch then appropriately energizes a control motor CM for a rheostat SR so that the output of a direct-current exciter E is varied to restore the balance of the two currents. The balancing relay and motor-adjusted rheostat may be replaced by a voltage regulator which is adapted successively to short-circuit steps in a shunt field rheostat for the exciter. In another arrangement the two currents are balanced by applying any difference therebetween to a valve amplifier which controls a metadyne exciter.
Patent GB-1000296-A (GB)
Title: Improvements in or relating to self-oscillating mixer circuits
Inventor: HAMPSON LEONARD WILLIAM
IPC: H03D7/08
Filed: 1961-08-03
Abstract: 1,000,296. Thermionic valves. MULLARD Ltd. Aug. 3, 1961, No. 28241/61. Heading H1D. [Also in Division H3] A self-oscillating frequency changer utilizes a mixer valve having a planar cathode 2 surrounded by a control grid 1 and a screen grid 3 and having two independent anodes 4, 5 each co-operating with a respective side of the cathode, one anode being included in the oscillator circuit and the other being connected to an IF circuit. The valve may have in addition a screen 5 and the grids may be of " frame grid " form.
Patent GB-1089783-A (GB)
Title: Improvements relating to the continuous measurement of relative speed between two rotating members
Inventor: HARTLEY KENNETH ALISON
IPC: G01P3/60
Filed: 1963-07-17
Abstract: 1,089,783. Speed difference determination. COURTAULDS Ltd. July 17, 1964 [July 17, 1963], No. 28250/63. Heading G1A. To determine the difference in speed (or a function thereof) between two members each is connected to a device producing pulses at a rate proportional to its speed, the pulse trains so produced are applied to trigger a bi-stable circuit in opposite directions and the time the circuit is in one of its stable states determined. As described the arrangement is used to measure the amount that yarn stretches during sizing. The yarn is fed from a supply drum 1 over feed roller 2 to the sizing and drying plant 4 from which it is drawn out over take-up roller 5 on to winding up beam 6. The stretch of the yarn is related to the difference in speed with which it passes over the rollers 2 and 5. Slotted discs 8 and 9 are shown directly coupled for rotation with these rollers and each disc is positioned between a light source and a photo-transistor. The output pulses from the detectors are amplified and fed to trigger a bi-stable circuit in apposite directions. Resultant pulse output signals may be derived from either side of the bi-stable circuit and in the circuit described Fig. 2 (not shown), the output from one side is applied to a circuit giving a meter indication of a mean potential representing the on-off time ratio of waveform whilst that from the other side is applied to a similar circuit feeding a recorder. An inter-connection between the circuits compensates for the switching time of the bi-stable circuits. To avoid troubles due to low beat frequencies between the two pulse trains it is preferred to make one pulse train have a slightly higher repetition rate than the other for the same speed of the two members. The resulting error in the indicator can be removed by applying a steady bias potential. Instead of the discs 8 and 9 being directly mounted on the shafts of rollers 2 and 5 they may be mounted on spindles carrying friction wheels which can be brought into contact with the rollers.
Patent GB-772107-A (GB)
Title: A coal breaker or the like
IPC: B02C4/08
Filed: 1955-10-04
Abstract: 772,107. Coal &C breakers. TEESINK, G., and TEESINK. W., [trading as VEN- "NOOTSCHAP ONDER FIRMA MASCHINEFABRIEK GEB. TEESINK VORHEEN F. L. N. KOOY]. Oct. 4, 1955 [June 17, 1955], No. 28263/55. Class 59 A coal breaker or the like comprises parallel 'rollers 3, 4 provided with breaking studs 8, the rollers each having a perimeter defined wholly by flat surfaces and being so coupled together that on rotation thereof ,the flat surfaces move symmetrically with respect to the median plane between the rollers. The rollers may be triangular or of polygonal shape in cross-section. The studs on each pair of co-operating surfaces of the rollers are staggered axially relatively to each other. The rollers may each. be built up from plates welded together along their meeting edges; alternatively, the rollers may be built up of a series of plates of the same cross-sectional shape as that of the rollers. The studs are screwed into screw threaded holes in the rollers. The broken coal &c. passes through a discharge opening 9 on to an endless conveyer 10.
Patent GB-997868-A (GB)
Title: Anti-theft device for motor vehicles
IPC: B60R25/00
Filed: 1963-07-18
Abstract: 997,868. Anti-theft devices. A. W. BURTON. June 16, 1964 [July 18, 1963], No. 28450/63. Heading B7J. A device for preventing operation of the gear lever of a motor vehicle comprises a hardened steel arm 10 formed at one end for pivotal connection to a fixed part of the vehicle and at the other for receiving the lever 21 such that the lever may be locked in the reverse position. The lever 21 may be retained by a separate padlock 23 passed through apertures 18 in the limbs of a fork 16 which embraces the lever, or locking means may be carried by the arm. As shown the arm 10 is pivoted on a bracket 12 secured to the floor of the vehicle in such a position that the arm can lie on the floor beside the driver's seat 19 when not in use.
Patent GB-353767-A (GB)
Title: Improvements relating to braiding machines
IPC: D04C3/00
Filed: 1930-09-24
Abstract: 353,767. Braiding- machines. BILLARD, F., 107, Rue de SÞze, Lyons, France. Sept. 24, 1930, No. 28569. Convention date, Oct. 12, 1929. [Class 74 (i).] Each carrier comprises a hollow central tube 37 to which are attached plates 41 42 and shoulders 40 for engagement with the raceways, a creel frame 38 and a let-off device 44. The arrangement of the parts 38, 44 on opposite sides of the parts 40, 41, 42 tends to reduce top-heaviness. The yarns pass through the tubes 37 and through a funnel with impregnating material to the braiding-point. Four or more bobbins or caps are mounted in each frame, and yarn can be drawn off them simultaneously.
Patent GB-680508-A (GB)
Title: A process for the catalytic hydrogenation of unsaturated hydroxy acids and their esters and the resulting hydrogenated products
IPC: C11C3/12
Filed: 1950-11-22
Abstract: Aliphatic unsaturated hydroxy carboxylic acids and their esters are hydrogenated by causing the initial material to flow by gravity in a thin film over a stationary heavy metal hydrogenation catalyst arranged in a reaction space, while passing through the reaction space a gas consisting of or containing free hydrogen or a substance yielding hydrogen under the reaction conditions, e.g. hydroaromatic compounds such as methylcyclohexane.  The hydroxyl group is not reduced.  Specified catalysts are iron, cobalt, nickel, platinum, palladium and other Group 8 metals and copper and manganese.  A very advantageous catalyst is nickel on alumina, all or part of the nickel being precipitated as the silicate which is then partly reduced to nickel, c.f. Group III.  Many carriers are specified, representative being sintered kieselguhr, magnesium carbonate, barium sulphate, active carbon and particularly natural or synthetic aluminas such as white bauxite.  Elevated pressure such as at least 10 atmos., e.g. 50, 100 or 150 atmos., is preferably used and temperatures of 150-180 DEG  C.  Ricinoleic acid or castor oil are specified and in an example the latter is hydrogenated in the presence of a nickel silicate on alumina catalyst at 100 atmos. and 175 DEG C.ALSO:Aliphatic unsaturated hydroxy carboxylic acids and their esters are hydrogenated by causing the initial material to flow by gravity in a thin film over a stationary heavy metal hydrogenation catalyst arranged in a reaction space, while passing through a gas consisting of or containing hydrogen or a substance yielding hydrogen under the reaction condition such as a hydroaromatic compound, e.g. methylcyclohexane.  The hydroxyl group is not reduced.  Specified catalysts are iron, cobalt, nickel, platinum, palladium or other Group 8 metals and copper and manganese.  A very advantageous catalyst is nickel on alumina, all or part of the nickel being precipitated as the silicate which is then partly reduced to nickel. Many carriers are specified, representative being sintered kieselguhr, magnesium carbonate, barium sulphate, active carbon and particularly natural or synthetic aluminas such as white bauxite. Ricinoleic or castor oil are specified. Elevated pressures and temperatures are used.  In an example sodium metasilicate solution is added to a solution of soda followed by a boiling nickel nitrate solution, the precipitate thus obtained is filtered off, washed, dried, pulverized, redried, mixed with pulverized heated white Surinam bauxite and a small quantity of graphite, compressed and reduced at 275 DEG C in a stream of hydrogen, the catalyst so made being used to hydrogenate castor oil at 100 atmos. at 175 DEG C.
Patent GB-603701-A (GB)
Title: Machine for treating objects by means of jets of abrasives, in particular with a view to their cleaning
IPC: B24C3/04
Filed: 1945-10-29
Abstract: 603,701. Sand-blasting. ETABLISSEMENTS A. SISSON. Oct. 29, 1945, No. 28588. Convention date, Sept. 7, 1943. [Class 60] A machine intended for treating objects by means of jets of abrasives, in particular with a view to their cleaning, comprising a chamber or tunnel provided with the abrasive-projecting means into which are brought the objects-to be treated, mounted upon a horizontal platform located upon a carriage, is characterised in that the chamber is traversed by a running track upon which there travel at least two carriages preferably coupled together, the carriages being located alternately one inside the chamber for treatment of the objects mounted upon its platform and the other or others outside the chamber for the removal of the treated objects and the reloading of its platform or their platforms. The blasting chamber 1 is traversed lengthwise by a track 3 on which run the carriages 2; the chamber is provided at its ends with vertical counterweighted doors 4, and an inspection window 6, the work being illuminated ; centrifugal throwers 8, 9-preferably constructed as described in Specification 510,681-are provided, arranged to give crossing streams ; compressed air jets may be used. Spent abrasive is collected in hopper 14 and raised by bucket elevator 15 to separator 16 whence the abrasive is fed again to the throwers. The carriages 2 can be coupled by hooks 24 to a chain 21, movement of the chain being effected by hand wheel 26 or by power means ; each carriage is provided with a rotatable work-carrying table 19, and when a carriage is in the centre of the chamber, a toothed crown on the table 19 engages a pinion which can be operated by a handle 30 so that the operator can turn the table to vary the presentation of the work to the jets.
Patent GB-1460440-A (GB)
Title: Ampicillin anhydrate
IPC: A61K31/43
Filed: 1973-06-15
Abstract: 1460440 Ampicillin anhydrate GLAXO LABORATORIES Ltd 7 June 1974 [15 June 1973] 28690/73 Heading C2C Novel anhydrate of ampicillin the infra-red spectrum of which is characterized by two sharp separate peaks of medium strength at approximately 3287 and 3420 cm.<SP>-1</SP>, may be obtained by heating ampicillin trihydrate to a temperature of above about 100‹ C. in a reaction zone in the presence of water vapour saturated at said temperature. The trihydrate may be heated by contact with a hot waterimmiscible liquid which is chemically inert to and does not dissolve the ampicillin, e.g. a liquid hydrocarbon or halohydrocarbon, or the trihydrate may be heated in a sealed container.
Patent GB-636772-A (GB)
Title: Improvements in or relating to tool holders for lathes and like machine tools
IPC: B23B27/16
Filed: 1947-10-28
Abstract: 636,772. Tool - holders. DAVIES, SEAFIELD, Ltd., and SEAFIELD, A. Oct. 28, 1947, No. 28712. [Class 83 (iii)] A tool-holder for a lathe &c. comprises jaws 12, 13, forming a socket to hold in ball-andsocket fashion a ball-device 16, 17 which is recessed to accommodate a tool 23, and a bolt 25 or the like passing through the jaws and the ball-device for clamping the tool in the balldevice and the jaws about the ball-device, there being a substantial clearance between the bolt and the hole therefor to allow tilting of the ball. The two parts of the ball-device 16, 17 are hinged about a headed pin 22 which may be replaced by a second tool. One or both of the jaws 12, 13 may be hinged to the shank 10, or both jaws may be offset above the shank.
Patent GB-1369970-A (GB)
Title: Process for producing 7-aminodesacetoxy-cephalosporanic acid
IPC: C07D501/18
Filed: 1973-06-18
Abstract: 1369970 Producing 7-amino-desacetoxycephalosporanic acid TOYO JOZO KK 18 June 1973 [17 June 1972] 28747/73 Heading C2A [Also in Division C3]  7-Amino-desacetoxycephalosporanic acid or an alkali metal salt thereof is produced by N- deacylating 7-phenoxy-acetamido- or 7-phenylacetamido - 3 - methyl - #<SP>3</SP> - cephem - 4 - carboxylic acid or an alkali metal salt thereof by treatment in aqueous solution with a deacylating enzyme from Arthrobacter simplex ATCC 15799, Kluyvera citrophila ATCC 21285, Proteus rettgeri ATCC 9250 or Micrococcus sp. NRRL B-2753. The enzyme may be in the form of a cultured whole broth, the filtrate thereof, the separated cells or a separated enzyme preparation consisting of the enzyme adsorbed on a suitable carrier (e.g. diatomaceous earth, an ionexchange resin or an ion-exchanging cellulose derivative). The deacylation is suitably effected at pH 7 to 8 and 20 to 45 C., by incubating the aqueous acylamino-cephalosporin solution with the enzyme preparation or, in the case of the carrier-bound enzyme, by passing the solution through a column thereof. The product may be isolated by precipitation with acetone.
Patent GB-408680-A (GB)
Title: Improvements in and relating to the manufacture of wheels for railway vehicles
IPC: B60B17/00
Filed: 1932-10-14
Abstract: 408,680. Vehicle wheels. GLOUCESTER RAILWAY CARRIAGE & WAGON CO., Ltd., and GIBBINS, F., Bristol Road, Gloucester. Oct. 14, 1932, No. 28776. [Class 144 (i).] A light-weight metal wheel for railway vehicles comprises two discs B spaced by a sleeve C and welded directly to the axle A. The outer flanged edges of the discs are connected by rivets G with spacing-washers H and welded to the tyre D.
Patent GB-997758-A (GB)
Title: Improvements in electric radiators
Inventor: WESTLE GORDON AYRE BARKER
IPC: F24C7/06
Filed: 1960-08-19
Abstract: 997,758. Flex-stowing means for electric radiators. PORTSMOUTH AVIATION Ltd. July 25, 1961 [Aug. 19, 1960], No. 28831/60. Heading H5H. An electric radiator, e.g. of the type described in Specification 997,759, has a reflector having a rearward opening compartment disposed in the rear thereof and, located close to and opposed to, a projection about which the flex for at least most of its length can be coiled so that, when so coiled, parts of the convolutions of the flex are accommodated within the compartment. As shown the projection has extensions 11d for assisting retention of the flex when coiled on the projection. The compartment may be provided with a handle 12.
Patent GB-464432-A (GB)
Title: Improvements in or relating to sliding friction bearings
IPC: F16C33/10
Filed: 1935-10-18
Abstract: 464,432. Cylindrical journal bearings. AKTIEBOLAGET NOMY. Oct. 18, 1935, No. 28842. Convention date, Oct. 20, 1934. [Class 12 (i)] A cylindrical journal bearing has a rotating collar 2 operating with the non-rotating ring element 3. The contacting surface 6 of these is supplied with lubricant by passages 28 leading from annular grooves 31. The groove 34 is inclined to the axis of the shaft. Axial thrust is supported by the rings 11 which are carried by the caps 10, these bearing against the cardan rings 20. Specification 462,602 is referred to.
Patent GB-207003-A (GB)
Title: Apparatus for facilitating the stowage of bulk cargoes in ships
IPC: B63B27/22
Filed: 1922-10-25
Abstract: 207,003. Donaldson, J. Oct. 25, 1922. Loading-hoppers; shoots.-In order to spread coal, ore, or the like evenly in a ship's hold and keep the vessel in trim, a loading-hopper A supported on uprights above the main hatchway is divided by a partition A<4> into two equal compartments which may deliver direct to the hold as shown, or to two flexible shoots B by which equal amounts of cargo are delivered to the hold on either side of the fore-and-aft centre line. The material is delivered from a feedway shoot A<3> on to the wedge-shaped edge of the partition A<4>, which breaks large lumps and divides the stream equally. As shown, the loading-hopper is delivering direct to the centre of the hold through orifices A<5> and nozzles A<6>. For delivering to the sides of the hold, the nozzles A<6> are raised bv chains A<7>, the feed ends B<4> of the shoots are brought beneath the hopper, and the nozzles A<6> lowered to keep the shoots in place. The delivery ends C of the shoots are connected to any of a series of openings along the parts D of the hold. The shoots are constructed of open-ended tapering sections connected by chains B<1>, B<2> attached to handles on the sections. The top section B<4> is fitted with wheels B<6> running on rails B<7> secured to the underside of the hopper. The Provisional Specification describes mounting the partition A<4> pivotally so that it may be rocked to loosen the material if the outlets have become choked.
Patent GB-1536356-A (GB)
Title: Method for the cooperative incineration of solid and liquid waste products and a furnace for performing the method
IPC: F23G7/04
Filed: 1976-07-13
Abstract: 1536356 Incinerators ATLAS AS 13 July 1976 [14 July 1975] 29021/76 Heading F4B In a furnace for incinerating solid and liquid waste comprising a first chamber 10 provided with a burner 12 for liquid waste and a second chamber 20 having a grate 22 for solid waste and wherein the two chambers 10 and 20 are interconnected by a duct system, solid waste within the second chamber 20 is heated and incinerated by hot combustion products from the first chamber 10, said combustion products being returned to said first chamber through a damper controlled duct 48 with the aid of an ejector 52 provided in said return duct 48. The combustion products finally leaving chamber 10 are subjected to secondary combustion in a chamber 16 before being discharged to a flue (not shown) through outlet 18. The combustion products, together with additional combustion air, leaving chamber 10 are conveyed to a space 40 at one side of chamber 20 through a damper controlled duct 36 and from there to a space 44 beneath the grate and a space 46 at the other side of said chamber 20. As shown, the entire furnace is surrounded by an air casing 28 supplied by a blower 30. Primary combustion air is supplied to chamber 10 through ducts 32 and secondary combustion air to chamber 16 through ducts 34. Additional combustion or cooling air may be introduced into chamber 20 through a duct 42. All the air required for combustion purposes and for operation of the ejector 52 is derived from the air casing 28. The air supply to the various parts of the furnace is independently controllable with the aid of dampers. Solid waste is introduced in chamber 20 through an opening 26 normally closed by a hatch 24. If necessary additional liquid fuel may be supplied to burner 12.