baber/WOPTO huggingface dataset:
Patent GB-1388364-A (GB)
Title: Moulding of hollow spherical bodies
IPC: B28B1/20
Filed: 1973-06-29
Abstract: 1388364 Centrifugal casting of hollow spheres H HAASE 29 June 1973 [1 July 1972 1 June 1973] 31118/73 Heading B5A [Also in Division B1] A hollow spherical body such as a pressure tank or oil container is moulded by feeding unmixed moulding components into a mould having a substantially spherical mould cavity, rotating the mould simultaneously about at least two axes to mix the components, and then increasing the speed(s) of rotation about the said axes to centrifugally mould the body. The speed(s) can then be increased even further. The moulding material comprises concrete, or polyester resin with sand and a filler. The mould comprises two halves 15, each having a flattened portion 16 for ease of standing. The mould is removably attached by clamps (not further disclosed) to the inner, 3, of concentric rings (1-3). The inner ring 3 is journalled by trunnions 7, 7<SP>1</SP> to the middle ring 2, which is journalled by trunnions 6, 6<SP>1</SP> to the outer ring 1, itself journalled by trunnions 4, 4<SP>1</SP> to supports 5, 5<SP>1</SP>. The middle and outer rings 2, 1 support rotatable, articulated areas 10, 10<SP>1</SP>, 12, 121 or endless belts or chains having bevel wheels at their ends. Rotation of the outer ring 1 on trunnions 4, 4<SP>1</SP> by a pulley/chain system 22 driven by a variable speed motor, is transmitted via bevel wheels 11, 11<SP>1</SP> and rotatable arms 10, 10<SP>1</SP> to the middle ring 2. The rotation is in turn transmitted to the inner ring 3 and mould 15 by bevel wheels 13, 23 and rotatable arms 12, 12<SP>1</SP>. The arms 10, 10<SP>1</SP>, 12, 12<SP>1</SP> include shear pins to limit their power and are releasably coupled by couplings 14<SP>1</SP>. The rings can be locked together by bolts 17, 18, and include balance weights 19. A steel ring or rubber collar (20) (see Fig. 2, not reproduced), is supported in the mould 15 to define a removable cover for the moulded body. In an alternative embodiment (see Figs. 3, 4, not reproduced), two rings only are used, with the outer rotating at #2 of the speed of the inner.
Patent GB-756295-A (GB)
Title: Improvements in frames for bicycles, in particular for bicycles having an auxiliary engine
Inventor: MENNESSON BERNARD RENE
IPC: B62H1/02
Filed: 1954-10-28
Abstract: 756,295. Cycle frames. SOC. D'APPAREILS DE CONTROLE ET D'EQUIPEMENT DES MOTEURS S.A.C.E.M. Oct. 28, 1954 [Nov. 14,1953; Sept. 13, 1954], No. 31184/54. Classes 136 (1) and 136 (3). In a bicycle frame comprising a down tube 1 which slopes downwardly and curves towards the horizontal so as to terminate at its rear end above the bottom bracket, and a rear triangular unit consisting of horizontal fork arms 4, oblique rods 5 and a seat pillar element 6, the seat pillar element is constituted by a sheet-metal piece of " U " section having its convexity turned towards the front, this piece acting as a mudguard for the rear wheel of the bicycle, the horizontal fork arms 4 comprising each, in front of the convexity of the seat pillar element 6, an extension which is fixed to the rear portion of the tube 1, this rear portion being engaged between the extensions. As shown in Fig. 1, the flanges 7 of the seat pillar element extend downwardly to act as supports for the bottom bracket shell 3. The frontward extensions of the arms 4 are welded through brackets 10 to the side plates 7. Transverse bars 11 are welded to the tube 1 and to the frontward extensions. As shown in Figs. 6 and 7 the seat stays 5 are of U-section and the fork arms 4 of an inverted L-section. The tube 1 is fixed to the extensions of the arms 4 by transverse bolts 12, 13, spacer sleeves 14, 15 and 16 being interposed. A gusset 70 is connected to the tubular element 1 and to the fork arms 4 by the bolt 13. A stand 9 is pivoted at 8 to the seat pillar element.
Patent GB-882195-A (GB)
Title: Improvements relating to oscillators incorporating transistors
Inventor: LAMONT KEITH
IPC: H03C3/24
Filed: 1957-10-07
Abstract: 882,195. Frequency modulation; transistor oscillator circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 19, 1958 [Oct. 7, 1957], No. 31322/57. Classes 40(5) and 40(6). In a transistor phase-shift oscillator TR3, TR4 the feedback path includes a parallel-T or bridged-T network R10, C5, C6, R9 the shunt path of which includes the collector/emitter or collector/base path of a transistor TR2 whose resistance is varied by a modulating voltage to produce a corresponding phase shift and frequency modulation of the oscillator. A second and negative feedback path C11, R15 to transistor TR3 may include a thermistor TH heated at W3, W4 by an input dependent on the amplitude of an amplifier succeeding the oscillator TR3, TR4 so that the oscillation amplitude is stabilized. The modulating frequency may be derived from an oscillator TR1, Cl, CH 1 . Variable resistors R3, R11 may control the modulation frequency swing and oscillator amplitude respectively, and Resistor R16 may adjust the centre frequency. The system may generate a 2000 c.p.s. tone frequency wobbled at 10 c.p.s., by oscillator TRI, for telephone and like calling systems. The main oscillator may alternatively comprise three transistors, or an aperiodic positive feedback path and a frequency dependent negative feedback path, the latter varied by the modulation.
Patent GB-1360068-A (GB)
Title: Device for rectifying long undulations of railway rails
IPC: E01B31/17
Filed: 1971-07-05
Abstract: 1360068 Rail grinding SPENO INTERNATIONAL SA and FRANK SPENO RAILROAD BALLAST CLEANING CO Inc 5 July 1971 [14 Aug 1970] 31325/71 Heading B3D A device for rectifying long undulations of railway rails comprises an array of grinding wheels 2-5 on a rigid frame 1, the frame being oriented in use in the direction of the rail 6, the distance between rotational axes of the end wheels of the array being greater than the length of the longest undulation to be rectified and the distances between axes of adjacent wheels being less than that length. The frame is driven along the rail by a suspension comprising means permitting it to pivot about an axis at right angles to the rail length and so constructed and arranged that the moment about the frame pivot axis of the forces at right angles to the rail length pressing the wheels against the rail and the force applied by the rail opposing movement of the frame along it is substantially zero. The frame 1 may be pivoted on trunnions (7), 8 at rail level from support rods 10 and (9), Fig. 2 (not shown), borne by the chassis 11 of a rail vehicle, the wheels 2-5 being driven adjacent wheels in opposite directions by gears 13-16 from a motor 12. Two supporting jacks 17, 18 allow adjustment of the grinding pressure. Alternatively, Fig. 4 (not shown), a frame (19) may support grinding wheels (23-25) disposed at an angle for treating shoulder regions of the rail (21), and a second frame (26) may support grinding wheels (27-29) for working in a substantially vertical plane on the inner face of the rail head. Also, Figs. 6-7 (not shown), a set of grinding wheels (33-36) may be rotatable about horizontal axes set obliquely of the rails for peripheral action on the rail surface 42.
Patent GB-267585-A (GB)
Title: Improvements relating to electric heaters
IPC: H05B3/16
Filed: 1925-12-11
Abstract: 267,585. Thermo Path Co., Ltd., and Meersch, A. E. M. van der. Dec. 11, 1925. Wire resistances, embedded and mounted on flat or curved surfaces. - An electric heating- resistance is composed of a wire wound into a helix which is again wound into a second larger helix or into loops &c. which are mounted on an insulating backing from which the loops or coils of the larger helix stand out. This may be effected by covering the backing 3 with a layer of insulating cement 4 in which a portion of each of the large coils 2 is embedded. In another form the doubly-coiled wire is placed round the grooved edge of a disc and secured by cement as described above.
Patent GB-738628-A (GB)
Title: Process for the production of polymerisation products
IPC: C08F4/00
Filed: 1953-11-12
Abstract: Organic monomers are polymerized in the presence of a catalyst comprising an inorganic salt of sulphinic acid together with a salt of an organic base and optionally an oxygen-containing compound and/or a small quantity of a heavy metal, e.g. copper, or salt thereof and/or alcohols, e.g. methanol.  The polymerization is preferably effected in bulk and in the presence of polymers. Salts of sulphinic acids mentioned are the sodium, potassium or magnesium salts of benzene sulphinic acid, p-toluene sulphinic acid and octyl sulphinic acid.  The salts of organic bases may be formed if desired in the polymerizable mixture, from organic and/or inorganic acids and the chosen base.  The acid may be present in excess and when an unsaturated organic acid is employed it may participate in the polymerization reaction.  Specified bases are aniline, ethylaniline, benzyl methyl amine, p-toluidine, dimethyl-p-toluidine, diphenylamine, 4,41-tetramethyl diamino diphenyl methane, p-amino-dimethylaniline, m-phenylene diamine, monomethyl, monobutyl, benzyl, cyclohexyl, dibutyl, benzyl methyl, triethyl, and diphenyl amine, 2-dimethyl aminothiazol, 4,5-diethyl imidazole, betaine, octyl isothiourea, and methyl - phenyl - ethanol amine.  Acids mentioned are acrylic, methacrylic, formic, oxalic, acetic, trichloracetic, sulphuric, nitric, p-toluene sulphonic, phosphoric, and maleic.  The monomer may be butadiene, chlorobutadiene, phenyl acetylene, styrene, divinyl benzine, vinyl chloride, vinyl acetate, diallyl diglycol carbonate, triallyl cyanurate, acrylic or methacrylic acid or their esters, e.g. methyl methacrylate, amines, or nitriles, or crotonic acid.  Specified oxygen-containing compounds are oxygen, air and p,p1-dichlorobenzoyl peroxide.  The process may be employed in dentristry.  Specifications 710,534, 710,535, and 734,848 are referred to.
Patent GB-1055893-A (GB)
Title: Magnetic logic systems
Inventor: MORRIS DAVID JOSEPH
IPC: H03K17/82
Filed: 1963-08-09
Abstract: 1,055,893. Magnetic storage devices. ENGLISH ELECTRIC CO. Ltd. Aug. 7, 1964 [Aug. 9. 1963], No. 31495/63. Heading H3B. A magnetic OR or INHIBIT circuit comprises input cores 10, 11 coupled by a common transfer winding to an output core 12, each core having " reset," " set " and " prime " possible distributions of the magnetic flux about a major aperture 10a, 11a, 12a, and minor input and output apertures 10b, 11b, 12b and 10c, llc, 12c. The output core in turn is coupled to a further magnetic core (not shown). Initially a pulse in reset windings 13 to 15 establishes a unidirectional flux about the major aperture of each core. When a set pulse is applied to an input winding of a core local fluxes are produced about the input and output apertures, and as the local flux about the output aperture is produced by flux reversal in the core portion between this aperture and the major aperture no output is induced in the common transfer winding. The priming windings are continuously energized and cause the flux about an output aperture to reverse immediately a core is set. An output is induced in the common transfer winding whenever a core is primed or reset; this output being effective to set the core in the next stage. A two-phase sequence of reset winding energization is used so that the set pulse condition is passed sequentially from the input to the output stages and beyond. Hold windings in each stage are energized at the same time as the succeeding stage is reset to prevent backward movement of the read-out information. The common transfer winding is wound in the same sense through both output apertures of the input cores for operation as an OR gate, and is wound in opposite senses for operation as an INHIBIT (viz. A.B or B.A) gate.
Patent GB-487595-A (GB)
Title: A method of treating water so as to prevent the effects of hardness
IPC: C02F1/48
Filed: 1936-11-18
Abstract: 487,595. Electrolytic treatment of water. FREEBORN, A. G. Nov. 18, 1936. No. 31512. [Class 41] Water is treated to overcome the effects of hardness by using a source of unidirectional current discharge in the water, and a cathode or earth in contact with the water spaced from said source, the electromotive force of the said source being so predetermined that there is a substantially constant potential difference between said source and cathode which is only a small portion of one volt. The source or anode should be so disposed that as much as possible of the water comes into contact with it, and the potential difference should not exceed twelve millivolts. Smooth D.C. or D.C. containing a ripple may be used. Apparatus for carrying out the invention may be inserted in a water main or storage tank, and the cathode generally constitutes a part of a main water system of pipework. An apparatus suitable for use in a water main shown in the Figure, comprises an outer, tubular, earth-connected cathode 1, a tubular anode 5 closed at one end except for an air vent 7, and inlet and outlet extensions 2 and 3, all being insulated one from another. The water enters at 2, passes between anode and cathode, and enters holes 14 in the anode, leaving at 3. Alternatively the anode may have a plurality of narrow slits and part of the outer tube 1 may also be used as an anode by insulation from the rest of the tube 1 and connection by a bridge member to the anode 5. In an apparatus suitable for, a storage tank, the water traverses a circuitous path over a plurality of anode plates in an insulating container placed in the tank, and so arranged that water entering or leaving the tank passes through it ; the plates extend completely across the container with the exception of narrow gaps arranged alternately on opposite sides. The cathode comprises a plate secured in the base or other part of the container. According to the Provisional Specification alternating voltages may be used. Specification 427,766 is referred to.
Patent GB-618128-A (GB)
Title: Improvements in and relating to lamp holders for circular lamps
IPC: H01R33/08
Filed: 1946-10-23
Abstract: 618,128. Electric lamp fittings. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 23, 1946, No. 31527. Convention date, Oct. 23, 1945. [Class 75 (iv)] [Also in Group XXXVI] A lamp holder for an endless tubular electric lamp, such as a circular fluorescent tube, having an electrical contact base in its periphery comprises an elongated supporting bracket 5 provided at its ends with two arms 6, 7 of insulating material having curved surfaces adapted to fit around part of the lamp, one arm 6 being provided with a connector 18 [see Group XXXVI] to engage the contact pins on the lamp and the other arm 7 being biased into engagement with the lamp. The arm 6 is clamped between the channel sections 9, 10 of the bracket 5 whilst the arm 7 which has a frictional button 24 to maintain the lamp in position is pivoted on a pin 25 in the channel section 10 and is urged by a U-spring 26 into engagement with the lamp. As shown in Fig. 10, the arm 7 is carried by a rod 47 capable of sliding and pivoting against the action of a coiled spring 51. Alternatively the bracket 5 may be a sheet metal channel section accommodating the electric conductors and forming a guideway for a supporting arm slidable against the action of a compression spring. A socket for the starting switch of the fluorescent lamp may be mounted in the bracket 5 adjacent to the lamp contact base. A plurality of lamps can be supported by providing a corresponding number of pairs of arms, 6, 7 on the bracket 5 or by mounting a plurality of brackets 5 one above the other on a vertical supporting stem. The connector 18 engaging the lamp contact pins is made of resilient rubber allowing limited movement of the contact sleeves 19 when removing the lamp. The supporting arms 6, 7 may engage the outer walls of the lamps.
Patent GB-428380-A (GB)
Title: Improvements in spanners and the like
IPC: B25B13/20
Filed: 1933-11-13
Abstract: 428,380. Wrenches. BULGARINI, M. C. R., 36, Via dei Monti Parioli, Rome. Nov. 13, 1933, No. 31556. [Class 61 (iii)] The sliding jaw c of a wrench is locked on the shank b by a stirrup e located in an opening d in the jaw and pivoted to a lever f engaged by a projection h on the jaw and having a heel part engaging the edge of the shank ; the back pressure of the jaw on the lever and the action of the spring g tilts the stirrup e and locks it on the shank. The gripping action of the stirrup is released by means of a pivoted pressure plate i having a rib k adapted to enter between the stirrup e and the edge of the opening d.
Patent GB-1509636-A (GB)
Title: High-impact non-ageing aes-polymers
IPC: C08L25/00
Filed: 1976-07-29
Abstract: 1509636 Styrene polymer/graft polymer compositions BAYER AG 29 July 1976 [30 July 1975] 31633/76 Heading C3M A moulding composition comprises (A) 10 to 90 parts by weight of a graft polymer produced by polymerization of styrene or styrene and acrylonitrile, the styrene being at least partially replaceable by alpha-methylstyrene, in the presence of an EPDM rubber, or a mixture of EPDM rubber and a saturated rubber. The polymerization being carried out in at least one aromatic, optionally halogen substituted hydrocarbon as solvent at a temperature above 80‹ C. and (B) 90 to 10 parts of a styrene homopolymer or a copolymer of a styrene with acrylonitrile or methacrylonitrile. Examples are given in which styrene, or alpha-methyl styrene, and acrylonitrile are grafted on to EPDM rubber, or a mixture thereof with ethylene-vinyl acetate copolymer, and at least one of the graft polymers is mixed with styrene-acrylonitrile copolymer.
Patent GB-828972-A (GB)
Title: Ear insert hearing aid
IPC: H04R25/02
Filed: 1957-10-10
Abstract: 828,972. Hearing aids. SONOTONE CORPORATION. Oct. 10, 1957 [Oct. 10, 1956; Jan. 15, 1957], No. 31755/57. Class 40 (4). An outer section 26, Figs. 1 and 2, is of such a size as to fit the user's outer ear cavity and contains a microphone 80, a transistor amplifier 30 (using a printed circuit), and a battery cell 76, and a receiver 70 of smaller crosssection is eccentrically arranged in relation to the outer section 26 so as to adjoin the user's ear canal. The receiver may be embedded in a member 16 individually moulded to fit the concha of the user's ear, with a channel portion 18 extending into the ear canal, or it may have a flexible sound-outlet duct 118 fitting within the ear canal, Fig. 7. In one construction, Fig. 5, the outer section is rotatable relative to the receiver 70<1> in order (by means of a cam member 138 secured to the receiver) to operate an on-off switch 104 and a volumecontrol rheostat 120 and to eject the battery cell 76<1>. In a modification, Figs. 8-13 (not shown), the battery (held by a spring clip) and volume control are accessible through openings in the casing of the outer section. Feed-back between receiver and microphone is suppressed by a magnetic shield 88 and a layer of soundinsulating material 86, Fig. 2.
Patent GB-361547-A (GB)
Title: A new or improved support for plants and flowers
IPC: A01G9/12
Filed: 1930-10-23
Abstract: 361,547. Treatment of growing plants. MARROW, M. S., West Barns House, Dunbar, East Lothian. Oct. 23, 1930, No. 31851. [Class 6 (ii).] In flower and plant supports comprising a surround or grid-like member 1 and supporting-rods 4, the surround 1 is constructed in one piece with rigid and fixed interlacing or crossing wires 2 to form open meshes, and the rods 4 have hook-like upper ends 3 for engagement with the surround 1. The rods 4 have pointed ends 5 for driving into the ground and may be crimped or corrugated. The hook ends 3 may be of an open coil type. The surrounds may be of circular, triangular, square, or other formation and may be made of galvanized iron wire, plated brass, or other material. The surround may be supported at a desired height above the soil either by driving the rods into the ground to the necessary extent, or by providing additional hooks other than of coil type at intermediate points so as to support the surround at a level lower than the upper ends.
Patent GB-1282720-A (GB)
Title: Improvements in or relating to the toughening of glass
IPC: C03B27/00
Filed: 1969-06-24
Abstract: 1282720 Toughening glass TRIPLEX SAFETY GLASS CO Ltd D G GIDDINGS and D D MURPHY 29 Dec 1969 [8 Jan 1969 24 June 1969] 1262/69 and 31952/69 Heading C1M Glass (e.g. soda-lime-silica sheets) of thickness 4-12 mm. is toughened by heating to near its softening point (e.g. 650-740‹ C.) and cooling rapidly with an oil which contains 0À01 to 0À07% by weight of a liquid whose boiling point is lower than the flash point of the oil. The oil is preferably maintained at a temperature above the boiling point of the said liquid and below the flash point of the oil, any of said liquid lost by vaporization being replaced. The said liquid may be carbon tetrachloride, toluene, benzene, methanol, ethanol, t-butyl alcohol, acetone or xylene. The oil is preferably one which has a flash point of 220-310‹ C. and a viscosity of 300-1000 centistokes at 38‹ C. The toughened glass preferably has a central tensile stress of 500-120 kg./cm.<SP>2</SP> and a surface compressive stress 2-4 times the tensile stress.
Patent GB-281337-A (GB)
Title: Improvements in and relating to the treatment of hydrocarbons with liquid sulphur dioxide
IPC: C10G21/10
Filed: 1927-11-28
Abstract: 281,337. Allgemeine Ges. fur Chemische Industrie. Nov. 26, 1926, [Convention date]. Mineral and tar oils, purifying.-In the purification of hydrocarbons by liquid sulphur dioxide. reduced pressures and cooling of the liquefied dioxide are produced by jet apparatus instead of by compressors and pumps as described in Specification 275,884. In the continuous apparatus shown, cooled oil from a pipe 1 is treated in countercurrent in a. mixer 2 with liquid dioxide from a condenser 3 and a cooler 4. The purified oil overflows by a pipe 7 and a pump 8 to heated dioxide evaporators 9, 10, 11, a pump 23, and an oil receiver, while the extract flows through a pipe 12 to a pump 13, heated dioxide evaporators 14, 15, 16, a pump 24, and a receiver. The dioxide vapour expelled from the stills 9, 14 is under pressure, and is used to operate jet apparatus 17, 18 which reduce the pressure in the stills 10, 15, 11, 16, and so ensure complete removal of dioxide therefrom, and also reduce the pressure in the cooler 4, causing evaporation and cooling of the liquid dioxide. The vapour passes to the water-cooled condensers.