baber/WOPTO huggingface dataset:
Patent GB-1514474-A (GB)
Title: Tyre and wheel assemblies
IPC: B60C7/00
Filed: 1974-08-23
Abstract: 1514474 Tyre and wheel assemblies DUNLOP LTD 13 Aug 1975 [23 Aug 1974] 37159/74 Heading B7C In a tyre and wheel assembly, Fig. 9, the tyre tread portion 1 is wider than the remainder of the tyre and is reinforced over substantially the whole of its width by a substantially inextensible reinforcing belt 2, and, as considered in cross-section, the sidewalls 3, 4 of the tyre are each in lengthwise compression and each extend radially and axially outwardly between the wheel rim and tread portion such that the longitudinal centreline of the sidewall is straight over substantially the whole of its length. The sidewall compression occurs as a result of mounting the tyre on the wheel rim, and may be created by axially displacing the inner edges of the sidewalls from positions D 1 , D 2  to positions C 1 , C 2 , Fig. 1, on mounting the tyre, which causes shortening of the sidewalls as shown and hence compression since the tread portion cannot expand to accommodate the sidewall displacements. When the tyre is mounted on the wheel shown in Fig. 9 the sidewalls 3, 4 are axially displaced by turning screws 13 to force apart plates 8, 9 on which the sidewalls are seated, and then the plates are secured in position by bolts 11 and spacers 12 to hold the sidewalls under compression. The tyre may be non-inflated or inflationary air may be used provided that its pressure is not such as to cause decompression of the sidewalls. Each sidewall may have a portion of reduced thickness adjacent its inner periphery and/or adjacent its outer periphery and may be thickened at its junction with the tread portion as shown in Fig. 7. The surfaces of each sidewall may be curved in cross-section as shown in Fig. 7. Each sidewall may consist wholly of a rubber harder than that of the tread portion and the bead portion of each sidewall may be without a reinforcing core. The longitudinal centreline of each sidewall may be at an angle of 25-70 degrees to the rotational axis of the assembly. The belt 2 may comprise two steel cord plies having equal and opposite cord angles of 10-80 degrees with respect to the circumferential, or alternatively three cord plies of which one ply has a cord angle of 90 degrees and the others equal and opposite angles of 10-45 degrees. Extra reinforcement may be provided at the edges of the belt 2, either by folding the belt ply edges or by providing at the belt edges further strips of cord fabric with angled cords or windings of circumferential cord. In one embodiment, Fig. 4a the tyre is provided internally with an additional pair of sidewalls.
Patent GB-921049-A (GB)
Title: Organo-silicon compounds
Inventor: LINDSAY WILLIAM STANLEY
IPC: C07F7/10
Filed: 1959-11-04
Abstract: A liquid organosilicon compound, believed to be a cyclic silazane, is made by reacting a n-butyltrihalogenosilane with ammonia.  The reaction is preferably effected in an inert, anhydrous, liquid medium such as a hydrocarbon, ether or halogenated hydrocarbon.  The hydrogen halide formed as a by-product is neutralized, e.g. by having an excess of ammonia present.  In the example, dry gaseous ammonia was passed into a benzene solution of n-butyl trichlorosilane at 40 DEG C. until no further precipitation of NH4Cl took place, and the filtrate, after filtering off the NH4Cl, was evaporated under reduced pressure and then distilled to yield a liquid corresponding to the formula (C4H9Si)15(NH)18.
Patent GB-760308-A (GB)
Title: Improved process for producing ethylene dichloride
IPC: C07C17/02
Filed: 1954-12-30
Abstract: <PICT:0760308/IV(b)/1> A process of producing ethylene dichloride comprises introducing ethylene and cholrine into a body of liquid consisting primarily of ethylene dichloride, and removing a vapour containing ethylene dichloride as its major constituent from the reaction zone. Chlorine and ethylene are fed by lines 10 and 12 into a reactor 14 containing liquid ethylene dichloride, at its boiling-point, which contains 0.035 to 0.5 per cent by weight of anhydrous ferric chloride.  Boiling temperature is maintained by the heat of reaction of the ethylene and chlorine, and ethylene dichloride vapour is removed by a pipe 22, liquefied in a condenser 26, the gaseous phase being removed in a separator 28, while liquid ethylene dichloride flows down a pipe 32.  A part of the condensate is returned by a pipe 34, to maintain a constant liquid level in reactor 14, while the remainder passes by a pipe 36 to a stripping column 38, down which it flows in contact with ethylene dichloride vapour from a reboiler 40, which vapour removes dissolved gases from the downstream of reactor crude and then passes to condenser 44, the gases being vented and the condensed ethylene dichloride returned through a pipe 48 as reflux.  A bottoms product of liquid ethylene dichloride is removed by pipes 56 and 58 to a still 62, where high-boiling chlorinated hydrocarbons are removed as bottoms through a pipe 64.  Ethylene dichloride is removed by a pipe 72 to a condenser 73 and separator 74, a portion of liquid ethylene dichloride being returned as reflux by a pipe 76, while the remainder is removed through a product outlet 78.
Patent GB-302931-A (GB)
Title: Arrangement for exciting synchronous machines
IPC: H02K19/28
Filed: 1928-12-21
Abstract: 302,931. Siemens - Schuckertwerke Akt.-Ges. Dec. 23, 1927, [Convention date]. Exciting. - For exciting a synchronous machine, a rectifier arranged on the rotating magnet supplies continuous current to the field winding and is supplied by alternating current induced in an auxiliary winding on the rotor whereby the use of slip rings is avoided. As shown the exciting winding b is supplied from a winding d through rectifier c which is of the dry metal type comprising, for example, layers of copper and copper oxide. The winding d is inductively coupled with an auxiliary stator winding e having a number of poles differing from that of the main winding a so as to produce a field rotating at a different speed. The auxiliary rotating field may be set up by utilizing the higher harmonics of the supply voltage, which harmonics may be strengthened by placing the auxiliary stator winding e on a highly saturated iron core. The winding e may be supplied from separate mains of different frequency. According to the Specification as open to inspection under Sect. 91 (3) (a), either of the windings d, e may be on a highly saturated core. Regulating resistances may be placed in the circuits of the windings a, e, and the machine may be compounded. This subject-matter does not appear in the Specification as accepted.
Patent GB-1141566-A (GB)
Title: Foamed plastics containers
Inventor: WEBER WALTER OWEN
IPC: B65D5/42
Filed: 1967-08-17
Abstract: 1,141,566. Moulding windows in articles. HAVEG INDUSTRIES Inc. 17 Aug., 1967, No. 37837/67. Heading B5A. [Also in Division B8] Transparent windows are produced in a container having walls made of a foamed thermoplastic polymer provided with at least one outer solid skin of the same polymer, by compressing the wall in the region intended to form the window to destroy the cellular structure in that region. As shown in the figure, a vacuum formed cup having a single non-foamed outer skin 44 has a window 40 formed therein by compression between an outer die 46 and an inner die 48, 50. In an alternative embodiment, not shown, a series of windows can be formed by pressing a chain against the surface of the wall of the container.
Patent GB-1519307-A (GB)
Title: Devices for the upright maintenance of the body of a machine
IPC: A01D75/28
Filed: 1975-09-15
Abstract: 1519307 Maintaining a harvester body upright INSTITUTUL DE CERCETARI SI PROIECTARI DE MASINI AGRICOLE 15 Sept 1975 37853/75 Heading AIF [Also in Division G3] A device for maintaining the body of a harvester-thresher upright is characterised by the fact that in order to achieve a continuous variation of the speed of the righting movement it uses a pendulum 6 which activates a flow controller B which controls an adjustable valve A the latter taking a part of the flow of a pump 1 proportional to the tilting angle of the body, the absorbed flow passing first through the valve A and then the controller B and the rest of the flow of the pump passing through an electrically activated distributor 2 to hydrostatic cylinders 4 which right the body. In the embodiment the pendulum 6 is fixed to a rotary slide 13 in the controller, Fig. 4, causing a back pressure at f in the adjustable valve Fig. 2 to move the slide 10 thereof and inhibit flow through the valve A. Also fixed to the coupling is a ferromagnetic core which when the pendulum is tilted one way increases the coupling between two coils (L1, L2) Fig. 6, (not shown) and a transistor (To) starts oscillating. The collector voltage is rectified and subsequently amplified and used to excite an electromagnet (3) which operates the distributor 2 to direct flow to the cylinders 4 to right the body and switch off the circuit. When the pendulum tilts the other way it operates an identical circuit actuating the cylinders in the opposite sense. A horn (22) and a light (23) in the control circuit, Fig. 5 (not shown) operate to warn if the maximum rate of the machine has been exceeded or if the circuit has a fault.
Patent GB-1300799-A (GB)
Title: Improvements relating to sound recording and reproducing apparatus
Inventor: COX FREDERICK JOHN GOODHALL
IPC: G11B5/56
Filed: 1970-08-06
Abstract: 1300799 Supporting magnetic heads SHEPPERTON STUDIOS Ltd 17 June 1971 [6 Aug 1970] 38055/70 Heading G5R To reduce vibration, a magnetic head 20 is embedded together with its supporting bracket structure 31, 34 in a rigid block 25 of potting material. As shown, the polepieces 22 of the head 20 project from the upper surface 26 of the block 25, which has rounded edges 28. Before potting, the head 20 is adjusted for azimuth and wrap and is then fixed by means of screws 32, 37. A magnetic screen and one or more further heads may be embedded in the block 25.
Patent GB-1356180-A (GB)
Title: Tertiary phosphine oxides and a process for their preparation
IPC: C07F9/53
Filed: 1971-08-13
Abstract: 1356180 Tertiary phosphine oxides FARBWERKE HOECHST AG 13 Aug 1971 [13 Aug 1970 30 Dec 1970 7 July 1971 (2)] 38231/71 Heading C2P The invention comprises tertiary phosphine oxides of the general formula wherein R and R<SP>1</SP> which may be the same or different, represent an alkyl or cycloalkyl group having up to 12 carbon atoms and R<SP>2</SP> represents a hydrogen atom, an alkyl radical having up to 4 carbon atoms or a cycloalkyl radical having from 4 to 8 carbon atoms, these radicals R<SP>2</SP> being unsubstituted or substituted by one or more hydroxyl groups, alkoxy groups of up to 4 carbon atoms or acyloxy groups of up to 4 carbon atoms, R<SP>3</SP> represents a hydrogen atom, an alkyl radical having up to 5 carbon atoms, hydroxyalkyl, alkoxyalkyl or acyloxyalkyl radical, the alkyl moieties of which have up to 4 carbon atoms, R<SP>4</SP> represents a hydrogen atom or an alkyl radical having up to 4 carbon atoms, a represents an integer of from zero to 4 and Z represents an alkyl radical having up to 4 carbon atoms or a cycloalkyl radical having from 4 to 8 carbon atoms, which radical is substituted by at least one OH or alkoxy, acyloxy or alkylmercapto group of up to 4 carbon atoms each, or wherein two of such substituents are combined together to form a ring, or Z is a group - OR<SP>5</SP> or -NR<SP>6</SP>R<SP>7</SP> in which R<SP>5</SP> is alkyl having up to 4 carbon atoms, an alkanoyl radical of up to 4 carbon atoms or a carbamoyl group and when a is other than zero R 5  may also represent a hydrogen atom, R 6  is H, an alkyl radical having up to 4 carbon atoms or an alkanoyl or carboalkoxy radical of up to 4 carbon atoms, R<SP>7</SP> is H or alkyl having up to 4 carbon atoms and R<SP>6</SP> and R<SP>7</SP> together with the N atom may stand for a 4- to 7-membered heterocyclic radical, with the proviso that when any one of the substituents on the P atom (as appropriate to its definition) is an alkyl or hydroxyalkyl group of more than nine carbon atoms neither of the other two substituents is an alkyl or hydroxyalkyl group having up to 3 carbon atoms. The compounds are obtained by reacting a secondary phosphine oxide of the general formula (R)(R<SP>1</SP>)P(O)H at 50-250‹ C. in the presence of a free radicalforming agent as catalyst and/or during exposure to ultra-violet light, with an olefinic compound of the formula Preferred free radical-forming agents are di-tbutyl peroxide and azobisisobutyronitrile and the reaction is suitably effected under an inert gas. The products are useful for flame-proofing flammable material and as corrosion inhibitors. They also have insecticidal and fungicidal properties and for this purpose they may be used in admixture with an inert carrier or diluent.
Patent GB-1382629-A (GB)
Title: Cell or battery driven electric timepieces
IPC: H01M/
Filed: 1972-08-17
Abstract: 1382629 Electronic timepieces DAINI SEIKOSHA K K 17 Aug 1972 [20 Aug 1971] 38462/72 Heading G3T A battery powered electric timepiece is provided with a light-emitting element (diode) 5 visible from the exterior of the timepiece and to indicate the battery condition. The indicator element is additional to any time-displaying light-emitting elements which may be provided in the timepiece. In the particular embodiment described the timepiece includes an electromechanical transducer 4 driving hands and driven by pulses derived from an oscillator 1 via a frequency divider 2 and shaping circuit 3. The same pulses energize the indicator element 4. When the amplitude of the pulses drop below the threshold of the indicator diode element 4 the element ceases to emit light, indicating that the battery voltage is below a predetermined level.
Patent GB-841327-A (GB)
Title: Improvements in and relating to the production of filaments of synthetic linear polymers
IPC: D01D5/253
Filed: 1956-12-18
Abstract: Filaments of non-circular cross-section are obtained by melt-extruding synthetic linear polymers through non-circular, preferably branched, spinneret orifices in which the ratio of maximum to minimum dimensions is at least 4 to 1 and the overall area of which is not less than 0,1 sq. mm., the filaments being wound without stretching at a speed corresponding to the desired reduction in their cross-sectional area from the spinneret to the winding device. Preferably the cross-sectional area of each orifice is at least 65 times that of the unstretched filament. The orifices may have the shape of stars each with 6-equal branches.  Specified polymers are those derived from caprolactam, 11-aminoundecanoic acid and hexamethylene adipamide. Specification 710,087 is referred to.
Patent GB-992120-A (GB)
Title: Improvements in cutters for grass and other vegetable matter
Inventor: HANSOM BERNERD STEPHEN
IPC: B60V3/02
Filed: 1961-10-28
Abstract: 992,120. Rotary-scythe mowers. WILKINSON SWORD Ltd. Jan. 23, 1963 [Oct. 28, 1961], No. 38667/61. Heading A1F. [Also in Division B7] A cutter for grass or other vegetable matter is supported on a cushion of air. As shown, the cutter comprises an internal combustion engine or electric motor 12 driving a rotary cutter member 20 and a compressor disc 12 (these may be driven by separate motors) having blades 15a which direct air from a grille 19 through an annular duct 14 between an inner casing 11a and an outer casing 10 to an annular, inwardly directed opening 14a. The hover height may be varied by varying the speed of the motor 12 or by varying the width of the opening 14a, and the cutter may be propelled by an appropriately directed jet of air from the compressor. A compartment may be formed within the housing 11 for receiving cut grass or other vegetable matter, connected to the bars 11b by a duct.
Patent GB-1402566-A (GB)
Title: Imidazolidines
IPC: C07D233/50
Filed: 1972-08-18
Abstract: 1402566 Hypotensive medicines BOEHRINGER INGELHEIM GmbH 18 Aug 1972 [20 Aug 1971] 38709'72 Heading A5B [Also in Division C2] Pharmaceutical compositions having hypotensive activity comprise, as active ingredient, a 2-phenyliminoimidazolidine of the general formula: wherein each of R 1  and R 2  is a hydrogen, chlorine or bromine atom or a -trifluoromethyl, cyano, methoxy, methyl or ethyl group and each of R 3  and R 4  is a hydrogen atom or a C 1-3  alkyl, C 5-7  cycloalkyl or C 3-5  alkenyl group, with the proviso that where one of R 3  and R 4  is a hydrogen atom, the other is not a hydrogen atom or a methyl or ethyl group, a tautomeric amine, or a physiologically compatible acid addition salt thereof, in association with a pharmaceutical carrier or excipient and optionally further physiologically active substances, e.g. diuretics, saluretics or analgesics. They may be administered orally, rectally, parenterally or enterally, e.g. as granules, tablets, capsules, suppositories, solutions, emulsions, coated tablets, pills, syrups, suspensions, powders or drops.
Patent GB-1135242-A (GB)
Title: Improvements in or relating to packing means for conductors in stator slots of dynamo-electric machines
Inventor: WOOD HARALD ISBISTER
IPC: H02K3/48
Filed: 1965-09-13
Abstract: 1,135,242. Securing coils for dynamo electric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 19 Aug., 1966 [13 Sept., 1965], No. 38941/65. Heading H2A. Insulated conductors are secured in slots in a dynamo-electric machine stator by tubes of resilient material, also housed in the slots, which are inflated to apply forces to the conductors. As shown, insulated conductors 3 are assembled in slots 2 together with packing 6<SP>1</SP> ,  6<SP>11</SP>, 7 and inflatable tubes of silicone rubber 8, 10 and the mouths of the slots closed by wedges 5. Tubes 8, 10 are connected to a pressurized fluid supply through a common manifold and inflated to apply forces to the conductors. Tube 8 applies a radial force, and tube 10, through the action of wedge shaped packing 7, applies a tangential force to the conductors. The fluid may be a viscous non-setting liquid or alternatively, may be compressible in which case the tubes are sealed after inflation. In a modification a single tube (11) lying between the conductors may replace the tubes 8, 10, Fig. 5 (not shown). Alternatively, the wedge-shaped packing and tube 10 may be replaced by a single shaped tube (9), Fig. 2 (not shown).
Patent GB-1505044-A (GB)
Title: Process for preparing dialkyl pentaerythritol diphosphite
IPC: C07F9/6574
Filed: 1976-09-20
Abstract: 1505044 Preparing dialkyl pentaerythritol diphosphites BORG-WARNER CORP 20 Sept 1976 38958/76 Heading C2P A dialkyl pentaerythritol diphosphite is obtained by reacting an alkanol having 10 to 20 carbon atoms with dichloropentaerythritol diphosphite in the presence of an HCl acceptor. Preferred alkanols are decyl and octadecyl alcohols. The reaction is generally carried out in a solvent and an example is given in which the alcohol used is stearyl alcohol and the reaction is carried out in toluene in the presence of triethylamine as HCl acceptor. The products are useful as stabilizers for vinyl polymers, e.g. vinyl chloride polymers and polyolefins.
Patent GB-1286238-A (GB)
Title: Apparatus for sharpening lawnmowers
Inventor: DAVIDSON HAROLD EDWARD
IPC: B24B3/42
Filed: 1970-08-13
Abstract: 1286238 Sharpening lawnmowers H E DAVIDSON and T C SPARGO 5 Aug 1971 [13 Aug 1970] 38966/70 Heading B3D Apparatus for sharpening lawnmowers comprises a slide 1 attachable to the underside of the bottom plate of a lawnmower and substantially parallel thereto, a carriage 2 slidable on the slide and adapted to carry a grinding-wheel A, guide means 31 on the carriage engageable with each of the blades of the lawnmower cutting cylinder individually to retain the edge of the blade in register with the periphery of the grinding- wheel as the carriage is moved along the slide, and means 42 for adjusting the position of the grinding-wheel in relation to the centre of rotation of the cutting cylinder when the apparatus is attached to a lawnmower. The slide 1 consists of a flat strip 4 having edge flanges 3 and the carriage 2 has a flat base 5 and end flanges 6 which slide on the strip 4 and flanges 3. The slide is secured to the bottom plates by fixtures 7 which have elongated holes 9 for receiving the holding bolts of the bottom plate of the lawnmower and edges 10 which are aligned with the fixed blade. Each fixture has lugs 11 which engage one of the flanges 3 of the slide and lugs 12 movable by a screw 15 to engage the other of the flanges to clamp the slide to the fixtures. The carriage 2 has a pair of support plates 20 mounting a pivot 21 for a carrier 22 having a clamp 23 for holding a portable electric drill having the grinding wheel A mounted on an arbor held in its chuck. The carrier is adjustable about the pivot 21 by a screw 42 which abuts the carriage. A back-plate 25 is also mounted on the pivot and has an aperture 26 providing clearance for the nose of the drill chuck and a recess 32 in the periphery of the plate accommodates a blade of the cutting cylinder of the lawnmower. A dished guard 40 with a flange 30 fits on the back-plate and has a gap 31. One side of the blade engaging the end 33 of the gap, and a stepped portion 34 on the flange receives a movable guide 35 which can be clamped in position by a screw 38 with its end 36 engaging the other side of the blade to provide a guide for the blade as the carriage is moved along the slide. The back-plate is locked in position on the carrier by a screw 28 passing through a slot 27, and the depth of cut of the grinding-wheel is determined by the screw 42.
Patent GB-1498165-A (GB)
Title: Magnetic recording media
IPC: G11B5/708
Filed: 1975-09-23
Abstract: 1498165 Magnetic recording media SONY CORP 23 Sept 1975 [2 Oct 1974] 38966/75 Headings C3P and C3R [Also in Division B2] Magnetic recording media comprise a flexible non-magnetic film base, e.g. polyethylene terephthalate, and a magnetic layer formed thereon comprising magnetizable particles dispersed in a resinous binder, said magnetic layer either containing or being coated with a lubrieating agent of formula (RCOO) n Si(CH 3 ) 4-n  in which n is 1, 2 or 3, and R is a C 7-17  aliphatic group. In Examples 1-3, the magnetic layer comprises γ-Fe 2 O 3 , vinyl chloride/vinyl acetate copolymer, a polyurethane resin, carbon black, lecithin, and one of many different silicon compounds of the above formula. Example 4 is similar except that the silicon compound is omitted from the layer and is instead coated on to the formed layer from isopropanol solution.
Patent GB-338040-A (GB)
Title: Gas reversing device for re-generative coke ovens
IPC: C10B21/14
Filed: 1929-12-20
Abstract: 338,040. Collin & Co. Dec. 27, 1928, [Convention date]. Addition to 211,112. Valves, reversing and like; cleaning and preventing incrustation. - The gas-reversing valve for regeneration coke ovens according to the parent Specification is modified by the provision, in the spigot k, of passages j which communicate with the atmosphere and are so disposed that, during the period when the bore i is disconnected from the distributing ducts b, c, air is admitted to the latter to burn away any incrustation therein.