baber/WOPTO huggingface dataset:
Patent GB-519216-A (GB)
Title: Improvements in magnetic speed changers
IPC: H02K49/06
Filed: 1938-09-20
Abstract: 519,216. Magnetic clutches. BEECHLYN, J. T., and WALKER CO., Inc., O. S. Sept. 20, 1938, No. 27463. [Class 35] - A speed-changing mechanism comprises three magnetic members arranged within one another and separated by clearance gaps, the two inner members being independently rotatable, a circumferential series of uniformly spaced teeth 33 on the outer member 25 is opposed to an annular series of unround teeth 28 on the intermediate member 20, these teeth being connected by narrow integral bridges 23. The tooth pitch of the outer and intermediate members differ so that circumferentially disposed nodes of low magnetic reluctance areproduced and salient poles on the inner rotor 27 move in unison with the nodes during rotation of the intermediate member. As shown, the speed changer and an induction motor 9 are housed in a common casing 10, the rotor of the motor being mounted on a hollow shaft 12 and the inner rotor 27 on a central driving shaft 11. The rotor 27 has a cylindrical portion spaced from the intermediate member by a clearance. gap 43.. The intermediate member 20 consists of a laminated core secured to a magnetic member 18 by tie rods 21 of copper, having enlarged central portions, which are insulated from the core and from each other at the end 19. Conducting rods 6 are also provided between the teeth of the stationary outer member 25, the purpose of these rods being to reduce, by eddy current action, reverse-torques on the rotor 27. The inner rotor 27 is solid and is made of pure iron of high conductivity. The pole faces or the whole of the polar portion may be coated with copper providing a highly conductive path for eddy current so as to reduce hysteresis loss in the poles. The system is magnetized by a stator coil 24. In a modification a second flux path is established duplicating the arrangement of magnetizing coil 24, and air-gaps 43, 34.
Patent GB-1335601-A (GB)
Title: Hydropneumatic suspension systems
IPC: B60G17/04
Filed: 1971-06-11
Abstract: 1335601 Valves; self levelling units HOESCH AG 11 June 1971 [13 June 1970 7 May 1971] 27542/71 Headings F2S and F2V [Also in Division B7] In a vehicle suspension system comprising hydropneumatic suspension units 10 communicating through level control valves 101, 106 with a high pressure line 14 from an accumulator 13 charged by a pump 12 and with a return line 15 to a reservoir 16, respective fluid flow retarders 17, 18 are connected into the lines 14, 15 to prevent flow through the lines 14, 15 for a predetermined period following opening of the valves 101, 106 so that there is no level regulation under transient changes of suspension level due to dynamic loads. Non-return valves 19 and a valve 31 opening at a fixed or adjustable predetermined pressure are connected into the return line 15 upstream and downstream respectively of the retarder 18. Each fluid flow retarder, Figs. 2, 4, comprises a cylinder 20 having an inlet 202 and containing a piston 22 and piston rod 24, a chamber 30 attached to one end wall 21 of the cylinder for accommodating the pistonrod having an outlet 301. When the pressure at the inlet 202 exceeds that at the outlet 301 due to opening of one of valves 101, 106 in the unit 10, the piston descends at a controlled rate as fluid from space 204 flows into space 203 through a restricted orifice 223 and non-return valve 23 in the piston. After a predetermined interval a bell-shaped valve member 27 abuts the end wall 21 and is raised from a seat member 25 on the piston-rod 24 so that fluid from the space 204 can flow to the outlet 301 through passages 251, 241 in the piston-rod. This reduces pressure in the space 204 whereupon a plate valve 26 opens to uncover bores 221 in the piston and allow uninterrupted flow between the inlet 202 and outlet 301. When the regulating operation is complete, a spring 29 returns the piston 22 to the initial position, the plate valve 26 allowing fluid to flow from the space 203 into the space 204 through the bores 22 and into the chamber 30 through a passage 224 in the piston and the passage 241. In a modification, Fig. 5 (not shown), the passage 224 is replaced by a radial passage (2251) in the piston-rod. In other embodiments, Figs. 7-9 (not shown), the piston is axially displaceable on the piston-rod to control flow through the passage, and in Fig. 10 (not shown) flow through the passage is controlled by an auxiliary piston valve. In Fig. 6 (not shown) the retarders are combined structurally with the accumulator and reservoir respectively.
Patent GB-1504234-A (GB)
Title: Method for transporting coal
IPC: C10L5/00
Filed: 1976-07-02
Abstract: 1504234 Transporting solids in liquid AMERICAN MINECHEM CORP 2 July 1976 [3 July 1975] 27723/76 Heading F1R [Also in Division B2] A method of transporting coal comprises dispersing fine particles of coal and ash in water to form an aqueous slurry; agitating the aqueous slurry with a liquid lyophobic to water and ash and lyophilic to coal to agglomerate the fine particles of coal; separating the agglomerated, coal particles, dispersing the separated, agglomerated, coal particles in a carrier liquid to form a transport slurry; pumping a stream of the transport slurry to transport the coal; and thereafter separating the agglomerated, coal particles from the transport slurry. The agglomerating liquid is preferably light oil, fuel oil, kerosene, creosote, filtered anthracene oil, hydrogenated filtered anthracene oil, lubricating oil or chlorinated biphenyls, and the carrier liquid is preferably petroleum or water. A binder liquid, e.g. heavy hydrocarbons, may be agitated with the agglomerated coal particles, which have been separated from the transport slurry to form pellets.
Patent GB-1352192-A (GB)
Title: Production of polymer particles
IPC: C08C2/06
Filed: 1971-06-14
Abstract: 1352192 Production of polymer particles from solutions thereof SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 14 June 1971 [15 June 1970] 27745/71 Heading BIB Polymer particles are produced from a solution of the polymer in an organic solvent by introducing the solution through inlet 8 into a stream of superheated steam or other hot gas or vapour, at a temperature higher than the maximum boiling point of the solvent, which is flowing through an elongated cylindrical casing 1 provided with an adjustably mounted element with one portion enlarged which forms an annular space 9 with the inner wall of the central zone of the casing, whereby the solution is subjected to high shear. A mixture of steam, vaporized solvent and polymer particles flow out of the lower end of the casing into a suitable separator, e.g. a cyclone separator. If the steam to polymer solution weight ratio is between 1.4 and 2.6, the residual solvent in the product is less than 2%. The shear rate of the feed solution may be changed by sliding adjustment of the element in casing 1. The polymer solution may be a solution of polystyrene, polybutadiene, polyisoprene, or a styrenebutadiene copolymer in a low-boiling hydrocarbon solvent such as mixed pentenes, mixed pentanes, cyclohexane, toluene and mixtures thereof.
Patent GB-1514495-A (GB)
Title: Damp proof courses
IPC: E04B1/64
Filed: 1975-07-02
Abstract: 1514495 Damp-proofing masonry DOW CORNING Ltd 25 June 1976 [2 July 1975] 27786/75 Heading DIP [Also in Division C3] An aqueous composition comprising water having dissolved therein a water soluble hydrolysis product of one or more silanes of the general formula RSi(OR') 3  in which R is an alkyl (1-4C) or vinyl radical and R' is a methyl, ethyl, propyl or methoxyethyl radical, is introduced into a masonary structure by way of one or more holes therein, to form a damp proof barrier. The composition may be buffered to a desired pH value e.g. 2-5.5 prior to use and may further comprise a water soluble alcohol e.g. methyl, ethyl or isopropyl alcohol. The composition may be gravity fed or injected under pressure into the masonry, which may be already wet. An alkaline substance may be injected to assist curing stone, brick or concrete may be treated.
Patent GB-1133871-A (GB)
Title: Drive system including an hydraulic turbo coupling
IPC: F16H61/64
Filed: 1966-06-22
Abstract: 1,133,871. Hydrodynamic couplings. A. BINAUT. 22 June, 1966 [22 June, 1965], No. 27841/66. Headings F2C, F2D and F2L. A coal plough and a conveyer therefor are driven independently by controllable hydrodynamic couplings which are driven in parallel by an electric motor 1. Liquid is supplied to the inner periphery of the couplings by a pump 20 through independently controlled valves 22. Liquid is exhausted from the couplings through peripheral ports controlled by ring valves which are adjusted axially by servos 11 controlled by the respective valves 22. The plough is driven by way of a reduction and reversing gear 16, a servo 19 controlling the reversing gear being operable only when the associated hydraulic coupling is empty.
Patent GB-685680-A (GB)
Title: Improvements in diving apparatus
IPC: B63C11/44
Filed: 1947-02-18
Abstract: 685,680. Submarine exploration. MUNGUET, O. F. Feb. 18, 1947 [March 25, 1946], No. 27985/51. Divided out of 685,601 [Group XXVII]. Class 68(ii) A diver's cradle or conveyance for use in making submarine explorations comprises a framework carrying wheels or runners and having mounted thereon the one or more internal combustion engines as in Specification 685,601, [Group XXVII], or any other type of internal combustion engine modified for operation under water. One or more regeneration chambers as, in Specification 685,601 may be provided and the propulsive apparatus may provide power for operating tools on the framework.
Patent GB-900963-A (GB)
Title: Improvements in or relating to leads for pencils
IPC: C09D13/00
Filed: 1958-09-01
Abstract: 900,963. Pencil leads. SCHWANHAUSSER, E., and SCHWANHAUSSER, G., [trading as SCHWAN-BLEISTIFT-FABRIK, SCHWANHAUSSER & CO.]. Sept. 1, 1958, No. 28016/58. Class 146 (3). A burnt pencil lead composition (i.e. one comprising basically a mixture of graphite and clay which has been fired at a high temperature) has incorporated therein one or more polar fatty substances containing two or more polar groups in the molecules thereof to improve the adhesion of the composition to smooth surfaces, the fatty substances containing, when triglyceride esters, one or more polar groups in addition to the ester groups. Such fatty substances preferably contain carboxyl, hydroxyl or amino groups and include mono- or tri- -hydroxy stearic acid or alkane triols, polydiols, e.g. derivatives of ethylene and propylene glycol, esters and ethers of polydiols, e.g. adipic acid esters, and esters of stearic acid with sorbitol, e.g. sorbitol tri-hydroxy stearate. The following examples are given :- Example I. 85 parts by weight of finest ground graphite and 15 parts of clay are shaped into rods, fired and impregnated with hydroxystearic acid or its triglyceride. Example II. 40 parts of the finest ground crystalline graphite, 15 parts of carbon black, 35 parts of the finest ground amorphous graphite and 10 parts of clay are shaped into rods, fired and impregnated with a stearic acid sorbitol ester. Example III. 85 parts of graphite end 15 parts of clay are shaped into rods, fired and impregnated with a polydiol having a molecular weight of 500-3000 and a beeswax-like consistency.
Patent GB-505762-A (GB)
Title: Improvements in and relating to the manufacture of electric cables
IPC: H01B3/18
Filed: 1937-10-14
Abstract: 505,762. Cables. SWALLOW, J. C., PERRIN, M. W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 14, 1937, No. 28021. [Class 36] [Also in Groups IV and VIII] A high tension cable is insulated with solid polymers of ethylene or with a fibrous material impregnated therewith. The polymers may be prepared as described in Specification 471,590, [Group IV]. The polymers may be extruded at 120-130‹ C. from a nozzle on to the core, and may be cooled by air blast or by a liquid as they leave the nozzle : or, tapes or ribbons of the polymers produced as described in Specification 474,426, [Group IV], may be wound on the core ; or, the core may be covered with paper impregnated with the polymers as described in Specification 491,804, [Group IV]. A lead sheath may then be extruded over the insulation or, if the latter is extruded, the sheath may be extruded simultaneously therewith. The cable may be armoured.
Patent GB-872560-A (GB)
Title: Oxirane compounds
IPC: C07D301/06
Filed: 1957-09-05
Abstract: Alkenyl aromatic and heteroaromatic compounds are contacted with molecular oxygen in the presence of a catalyst comprising bromine and a metal oxidation catalyst at a temperature in the range of 50-115 DEG C. and at sufficient pressure to maintain a liquid phase to give the corresponding oxirane compounds.  The alkenyl aromatic and heteroaromatic compounds used as starting materials are compounds having an aromatic nucleus, or a heterocyclic nucleus of aromatic character, to which is attached an alkenyl group.  Suitable aromatic nuclei are, for example, benzene, naphthalene and phenanthrene nuclei and suitable heteroaromatic nuclei are, for example, pyridine, furane and thiophene nuclei. Among the starting materials which may be used are styrene, vinyl naphthalene, vinyl diphenyl, vinyl pyridine, vinyl phenol, chlorostyrene, bromostyrene, nitrostyrene, aminostyrene, propenyl benzene, butenylnaphthalene, butenyl diphenyl, vinyl diphenyl ether and propenyl pyridine.  Preferred metals for use in the catalyst are manganese, cobalt, nickel, chromium, vanadium, molybdenum, tungsten, tin and cerium.  The metal and the bromine may be present in the catalyst in elemental, combined or ionic form. Suitable bromine compounds which may be added are, for example, ammonium bromide, potassium bromate, tetrabromoethane and benzyl bromide.  The metal may be supplied in the form of a salt or as an organic complex, e.g. an acetylacetonate, 8-hydroxyquinolate or an ethylene diamine tetraacetate. Preferably the catalysts are used in an amount of 0.1-10% based on the alkenyl compound.  A solvent may be used, e.g. a non-acid organic compound, e.g. chlorinated polyphenyls, biphenyl, diphenyl ether or naphthalene or a monocarboxylic acid having 1-8 carbon atoms in the molecule.  The oxygen may be used alone or in the form of gaseous mixtures.ALSO:Catalysts for use in the preparation of oxirane compounds comprise bromine and a metal oxidation catalyst.  Both the bromine and the metal may be present in combined, elemental or ionic form. Preferred metals are manganese, cobalt, nickel, chromium, vanadium, molybdenum, tin and cerium and may be present in the form of a salt or of an organic complex, e.g. an acetylacetonate, 8-hydroxyquinolate or an ethylene diamine tetraacetate.  Examples of suitable catalysts are manganese acetate and ammonium bromide; powdered manganese metal and ammonium bromide; cobalt acetate and ammonium bromide; manganese acetylacetonate and ammonium bromide; manganese 8-hydroxy quinolinate and ammonium bromide; a manganese complex of ethyl diamine tetraacetic acid and ammonium bromide; manganese borate and ammonium bromide; manganese chloride and ammonium bromide; manganese acetate and potassium bromate; manganese acetate and free bromine; manganese acid and tetrabromoethane; manganese acetate and benzyl bromide; the material obtained by evaporating a mixture of cerium hydroxide, ammonium bromide and hydrobromic acid to dryness; and similar mixtures obtained by using tungstic acid, ammonium molybdate or Raney nickel instead of cerium hydroxide.
Patent GB-170597-A (GB)
Title: Improvements in and relating to auxiliary apparatus for use in connection with book-keeping
IPC: B41L3/02
Filed: 1921-10-22
Abstract: 170,597. Wilkensen, W. Oct. 23, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Book-keeping; block and sheet holders.-An appliance for use in connection with book-keeping comprises a base-plate 1 to which a writing-plate 9 is hinged, a journal 11 being housed beneath the plate 9 in a recess 10 in the plate 1 and one leaf of the journal 11 being turned over the free edge of the plate 9 on to its upper surface, so that simultaneous entries may be made on the leaf and on loose sheets supported on the plate 9 with carbon sheets between them. The free edge of the plate 9 may be supported on a ledge 12 in the recess 10, and a second plate 13, hinged to the plate 1, may be held by means of one or more springs or a bolt 14 with its free edge resting on the edge of the plate 9, or on a leaf of the journal 11 and a carbon sheet on the plate 9. The loose sheets may be held on tables 3, 4, adjustable along guides 2 at either side of the plate 1 by means of rollers 7 on the tables pressed by springs 6 against sets of pins 8 on the plate 1, the distance between consecutive pins being equal to that between the lines on the sheets used.
Patent GB-359154-A (GB)
Title: Improvements in processes for creping paper
IPC: B31F1/12
Filed: 1930-09-22
Abstract: 359,154. Craped paper and compound sheet material. ROWE, W. W., R.F.D. No. 1, Indian Hill, Cincinnati, Ohio, U.S.A. Sept. 22, 1930, No. 28310. Grant of Patent opposed. [Classes 96 and 140.] Paper is craped by applying it to a roll to which it adheres by reason of a film of waterproof thermoplastic material such as asphalt or other bitumen, the temperature o the roll being controlled to give the necessary adhesion to crape the paper as it is stripped from the roll. Burlap or other backing material may then be applied. Kraft or other paper 1a is coated by rolls 4, 5 with heated bitumous material 3, the spacing between the rolls 4, 5 being adjustable and controlling the thickness of the coating. The coatted paper 16 which may be cooled by the air and by a water-cooled drum 7 passes to a roll 9 which is heated, preferably by electricity and which may have thermostatic control, the paper being pressed on the roll 9 by an adjustable roller 10 preferably of rubber and craped off by a doctor 11. The craped paper 1c passes over heated bars or driven rolls 15, 16 to rolls 13, 14 which may be heated, which rotate at a greater surface speed than that of delivery of the paper 1c and which apply a backing of burlap &c. led over rolls 18, 19. In an alternative method, heated bitumen is applied by a train of rolls to a watercooled temperature controlled roll to which the paper is applied by a pressure roller and craped off by a doctor.
Patent GB-1357704-A (GB)
Title: Aromatic polyimides with chains comprising hydroxymethylene  groups and their preparation
IPC: C08G73/10
Filed: 1972-06-16
Abstract: 1357704 m - Phenylene - bis(4 - hydroxymethylenephthalic) acid INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 16 June 1972 [17 June 1971] 28373/72 Addition to 1258882 Heading C2C [Also in Division C3] m - Phenylene - bis(4 - hydroxymethylenephthalic) acid (I) s made by hydrogenating the Na or K salt of bis-m-(3,4-dicarboxybenzoyl) benzene acid (II) n methanol or ethanol in the presence of Pd deposited on charcoal, at 60‹ C. and 10-100 kg./cm.<SP>2</SP> H 2  pressure. The preparation of (II) is described in the parent Specification 1,258,882.
Patent GB-689768-A (GB)
Title: Shut-off gate for open end of a transit mixer
IPC: B28C5/42
Filed: 1951-12-04
Abstract: 689,768. Mixing appliances. JAEGER MACHINE CO. Dec. 4, 1951, [March 9, 1951], No. 28398/51. Class 86. In combination with a rotatable mixing drum having an end opening, a charging hopper is supported at the end thereof in fixed position and extending into a portion of the drum opening, and a shut-off gate is movably suported adjacent the hopper for substantially closing the remaining portion of the opening. As described a hopper 14, Fig. 1, supported in fixed position by a stationary frame 11, extends into the upper portion of an opening 12 in the end of a rotatable mixing drum 10. A substantially semi-circular gate 25, Fig. 3, swing- ably mounted upon a shaft 21, carries a flexible sealing member 28 which, in the closed position of the gate, engages in sealing relationship with a ring 13 secured to the mixer 10 around the opening 12 to close the lower portion of the opening. The gate 25 is connected by means of members 32, 33 to an operating lever 34 by which means the gate may be swung between the closed position and an open position in which it is spaced away from the drum opening 12 to permit discharge of material from the drum. A spout member 23 rigid with the frame 11 is provided to direct the flow of discharged material. The flexible sealing member 28 may be made of rubber.
Patent GB-1086418-A (GB)
Title: An electric a.c. generator in combination with a regulator
IPC: H02J7/14
Filed: 1965-07-06
Abstract: 1,086,418. Dynamo - electric machines. DUCATI ELETTROTECNICA S.p.A. July 6, 1965 [July 6, 1964], No. 28523/65. Heading H2A. [Also in Division G3] In a three-phase A.C. generator and regulator combination, for battery recharging, the generator comprises a rotor containing permanent magnets and a stator having three Y- connected power windings 1, 2, 3, connected to a three-phase rectifier arrangement formed by three rectifier diodes 4, 5, 6 and three controlled rectifiers 7, 8, 9, and three auxiliary Y-connected windings 11, 2<SP>1</SP>, 3<SP>1</SP>, controlling the conduction of the rectifiers 7, 8, 9. With the battery 29 charged, Zener diode 25 and transistor 22 conduct to hold transistor 20 non- conducting and no bias is applied to the grids of the rectifiers 7, 8, 9. When the battery is undercharged Zener diode and transistor 22 are non-conducting and transistor 20 conducts; current then flows through the control winding 19 of three saturable transformers 16, 17, 18 which cause triggering of the rectifiers 7, 8, 9 via diodes 10, 11, 12 so connecting the D.C. output of the generator to charge the battery. The auxiliary windings 1<SP>1</SP>, 2<SP>1</SP>, 3<SP>1</SP> of the generator are connected in phase opposition to the power windings and are arranged as near as possible to the air gap (Fig. 2, not shown).
Patent GB-935158-A (GB)
Title: Fluid fuel combustion apparatus
Inventor: HARTLE CLIFFORD EDWARD
IPC: F23D17/00
Filed: 1961-08-08
Abstract: 935,158. Fluid fuel burners. NU-WAY HEATING PLANTS Ltd. July 23, 1962 [Aug. 8, 1961], No. 28546/61. Class 75 (1). A fluid fuel burner comprises a head 10 having a forwardly divergent orifice 11, an annular gas conduit 14 disposed at the rear end of the orifice 11 and having radially inward discharge apertures 16, and a duct 19 supplying air to the orifice 11 and to an annular passage 12 which surrounds the orifice 11 and which communicates with the forward end of the orifice through an annular port 13 or a series of radial ports. The gas conduit 14 is connected to a supply pipe 15. A further annular gas conduit 17 supplied by a pipe 9 is disposed at the rear end of the annular passage 12 and has radially inward discharge apertures 18. A disc 22 having an aperture 23 and air swirl louvres 24 is mounted at the rear end of the orifice 11. One or more liquid fuel burner nozzles 20 may be directed into the orifice 11 and one or more ignition electrodes 21 are provided.
Patent GB-376574-A (GB)
Title: Improvements in or relating to apparatus for straining liquids or gases
IPC: F01M11/03
Filed: 1931-10-14
Abstract: 376,574. Filters or strainers. VICKERSARMSTRONGS, Ltd. and WARDLE, J., Vickers House, Broadway, Westminster. Oct. 14, 1931, No. 28588. [Class 46.] A strainer for liquids and gases comprises a casing having an axial outlet D and containing a substantially solid former A abutting against the outlet end wall of the casing and formed with longitudinal grooves A<1> communicating directly or by passages A<2> with the outlet ; a straining wire is wound helically about the former which is held by a screwed inlet cap D<2> ; a bridge piece or spider C which may be integral with the former is interposed between the cap and the former.