baber/WOPTO huggingface dataset:
Patent GB-1395077-A (GB)
Title: Producing a container of reinforced plastics material
IPC: B65D13/00
Filed: 1972-09-08
Abstract: 1395077 Wound vessels GEOBRA BRANDSTATTER GmbH & CO KG 8 Sept 1972 [11 Sept 1971] 41944/72 Headings B8G [Also in Divisions D1 and F4] A method of producing a generally spherical container of reinforced plastics material comprises slowly rotating a curved plate 2, a spherical former 22 and a dished portion 8, with an orifice to form the container mouth, about an axis 23 while winding at least one curable plastics-impregnated roving 4 about the former, curved plate and dished portion, circumferentially in a plane lying at an angle other than 90 degrees to the axis 23 by means of a winding arm 29, 30. The container so formed can have the edges of the curved plate and dished portion cranked inwards as at 14, Fig. 2, or may have the spherical portion 1 of the container cranked outwards over them as at 10. An exterior reinforcing overlay 12, 16 may be provided at the join of the end pieces with the spherical portion. Overlay 16 also has lugs 20 to secure a neck 21. As shown two rovings of e.g. glass fibre are wound simultaneously by winding legs 29, 30. Bobbins 43 for the rovings and impregnating vats 39 are arranged to rotate synchronously with the winding arms to avoid tangling the rovings. The plastics material may be e.g. polyester or epoxide resin. The interior and exterior of the vessel may be covered with a layer of reinforced plastics material which is sprayed on.
Patent GB-952828-A (GB)
Title: Bearing slippers for articulated spindles
IPC: F16D3/26
Filed: 1962-11-07
Abstract: 952,828. Universal Joints. H. J. SCHWARTZ. Nov. 7, 1962 [Nov. 10, 1961], No. 42051/62. Heading F2U. A bearing slipper 4 for articulated spindles comprises a centre section 4a to which are resiliently connected two end sections 4b and 4e. Two such slippers are held between the flattened end of a driving spindle 3 and the head 1 of a driven spindle, each slipper having an arcuate projection to co-operate with a slot in the head 1, and a bore to hold a pinned spindle 6. Resilient spring plates 9, Fig. 3, serve to join the bearing slipper sections.
Patent GB-1150606-A (GB)
Title: Method and Circuit for Speed Control of Asynchronous Motors Fed by Static Frequency Convertors
IPC: H02P27/06
Filed: 1966-09-22
Abstract: 1,150,606. Control of A.C. motors. RUMANIA, MINISTRY OF MACHINE BUILDING INDUSTRY. 22 Sept., 1966 [30 Sept., 1965], No. 42286/66. Heading H2J. [Also in Division G3] One or more asynchronous motors 9 are supplied through a static frequency converter 8, the output frequency of which is controlled by speed control signals from an unspecified device 1 (integrated at 2) and subject to a maximum current control, and the r.m.s. voltage output is controlled by an independent motor flux retroactive loop 14, 15, 16. The current control is inoperative until the maximum value set on 10 is reached; thereafter the frequency is adjusted to maintain this value. Reversal may be effected by change of sign of the control signals from 1, the frequency being first reduced, and a circuit 17 changes the phase sequence of 8 when the control signal crosses a threshold value.
Patent GB-1284343-A (GB)
Title: Improvements in piezoelectric vibrators
IPC: H01L41/18
Filed: 1970-09-03
Abstract: 1284343 Piezo-electric crystals NIPPON ELECTRIC CO Ltd 3 Sept 1970 [3 Sept 1969 13 Dec 1969] 42304/70 Heading HIE A piezo-electric vibration comprises an LiTaO 3  single crystal plate having an orientation (zxtwl)#/#/# in which the z axis is parallel to one of the three axes of symmetry of the crystal # in which 68<#<113; 22<#<57; and 0<#<50À4 or 130À5<#<180. The temperature coefficient for crystal orientations within these ranges can be <20 p.p.m./ C. and the electromagnetic coupling coefficient can exceed 10%. The temperature coefficient is within 20 p.p.m./ C. where # and # lie within the polygonal area ABCDEFG, and within the area HIJKLMNO the temperature coefficient is within  10 p.p.m./ C. Within the hatched area the temperature coefficient is less than  1 p.p.m./ C. The electromechanical coupling factor becomes larger as # approaches zero and in a preferred range 0<#<1À5. Tables are given of electromechanical coupling coefficient, temperature coefficient # specific inductive capacity for different orientation crystal plates.
Patent GB-1304767-A (GB)
IPC: H02K3/34
Filed: 1970-09-04
Abstract: 1304767 Making dynamo-electric machines ISKRA-ZAVOD ZA AVTOMATIZACIJO V ZDRUZENEM PODJETJU ISKRA KRANJ 4 Sept 1970 [8 Sept 1969] 42365/70 Heading B3A A method of making squirrel-cage rotors comprises insulating the conductors with pulverized thermoplastics material prior to inserting them in the rotor slots. The material may be polyvinylchloride, polypropylene, polyamide, polycarbonate or polytetraethelene fluoride. The conductor bars are hardened and then heated to the sintering temperature of the thermoplastics material used. The heated conductors are immersed in a bath having the thermoplastics powder in suspension and it adheres to the conductors. Alternatively the powder may be applied by spraying.
Patent GB-1056090-A (GB)
Title: Rolling mill
Inventor: ECKHERT JOHN EDWARD
IPC: B21B13/14
Filed: 1965-10-06
Abstract: 1,056,090. Rolling mill. T. SENDZIMIR. Oct. 6, 1965, No. 42513/65. Heading B3M. [Also in Division F2] In a cluster-type rolling mill having work rolls 13, 14 backed by castors 25-32 which in turn are backed by a mill frame 11 through saddle elements 38; the rolls and strip are cooled by sprays 35, 36 and castors 25-32 are lubricated by forcing metered amounts of airoil mist through passages 47 in each castor shaft 42, into passages 50, 48, 49, and thence to the rollers 46 in the castors. Intermediate rolls 15-24 are provided between the work rolls and the castors. Each of the castors comprises an arcuate saddle-element 38 received in an arcuate seat in a frame 11 and extending from the saddle element is a plurality of collars 40 keyed to shaft 42. Supported between the collars are roller bearings 43, the outer races 45 of which engage the intermediate rolls. Oil mist is supplied to a manifold 61 by a Venturi type-oil fog generating unit 75, Fig. 2 (not shown), and as it passes through passages 50, sharp-edged orifices 79 act to recombine the small oil particles into larger particles, which are then blown into bearings 43. In a modification, each work roll is backed up directly by a pair of castors.
Patent GB-1139438-A (GB)
Title: Improvements in rotary-piston engines
Inventor: ERWIN JOHN RICHARD
IPC: F02B53/08
Filed: 1966-09-26
Abstract: 1,139,438. Rotary-piston engines and pumps. GENERAL ELECTRIC CO. Sept. 26, 1966 [Oct. 8, 1965], No.42829/66. Heading F1F. A rotary-piston I. C. engine comprises a block 10, Fig. 1, containing a pair of parallel cylinders 12, 14 wherein eccentric cylindrical pistons 22, 24 are rotatable in a planetary manner and are separated from each other by a roller 34 that is in sliding contact with two sliding-rocking vanes 36, 46 so as to effect sealing between the cylinders, the pistons and the roller being supported by three parallel rotatable-shafts 59 that are coupled to one another either by a link (58), Fig. 7 (not shown) engaging with eccentric pins 62 on the ends of the shafts, or by a train of toothed gearwheels (64, 65), Fig. 8 (not shown). The vane 46 is kept permanently in contact with the roller 34 by a compression-spring 44 whereas the vane 36 serves as a valve-member and is periodically raised, Fig. 4, by a linkage system 41, which is synchronously coupled to the link (58), or the gear-wheels (64, 65), so as to permit transference of compressed air or fuel-air mixture from one cylinder to the other. The shafts 59 may be coupled to one another by a further link (60), Fig. 7, engaging with further eccentric pins on the other ends of the shafts, which pins are arranged relative to the pins 62 so as to render the two links out-of-phase with each other and so facilitate starting. In operation, air or fuel-air mixture is drawn into the cylinder 14 through a passage or port 48 and is compressed by the piston 24 while the vane 36 is held in contact with the roller 34, the compressed air or mixture being thereafter transferred to the cylinder 12 while the vane 36 is raised during a period when the volume of the space between the pistons is least. Subsequently, the vane 36 is brought back into contact with the roller and either fuel is injected into the compressed air by a nozzle 54 or the mixture is ignited by a spark-plug, the expanded products of combustion being ejected from the cylinder 14 through a passage or port 50. A plurality of such engines may be disposed in tandem and arranged to operate out-of-phase with one another while driving a common poweroutput shaft, Fig. 9 (not shown). The engine may be modified to operate as a pump or compressor, the vane 36 then being rendered permanently in contact with the roller 34 and the pistons being arranged to effect pumping or compression in two stages. Alternatively, each piston effects pumping independently of the other and inlet and outlet ports are furnished in each cylinder, the vane 36 again being permanently in contact with the roller. The engine may be operated as a hydraulic or pneumatic motor. When the engine is employed as a compressor it may comprise a single cylinder and piston e. g the cylinder 14 and the piston therein.
Patent GB-1020286-A (GB)
Title: Differential amplifier
IPC: G06G7/14
Filed: 1962-11-13
Abstract: 1,020,286. Transistor amplifying circuits. ADAGE Inc. Nov. 13, 1962 [Nov. 13, 1961], No. 42984/62. Heading H3T. A differential amplifier comprises two signal channels, each including an amplifier 10, 12, respectively, Fig. 1, the power supply for each amplifier being connected to a corresponding reference terminal 18, 30, respectively; terminal 30 is earthed. A resistor R 1  connects the active output terminals of the two amplifiers while a second resistor R 2  interconnects the reference terminals 18, 30, one end being also connected to a source of reference potential, i.e. earth. The differential amplifier output is taken across this latter resistor R 2 . The amplifiers 10, 12 are of high gain, the two inputs being applied between active input terminals 20, 32, respectively and terminals 36, 40; reference terminals 18, 30 are connected to amplifier input terminals 22, 32, respectively, to provide negative feedback which reduces the gains to unity and renders the input impedances high. The power supply for each amplifier, comprises a positive source 14, 26, respectively, and a negative source 16, 28 with common connections to the respective reference terminals 18, 30. In a simplified modification (Fig. 2, not shown) one amplifier is omitted, the input from the second channel which must be capable of working into a low impedance, being connected between the corresponding end of resistor R 1  and earth. In another embodiment, each input feeds into a D.C. amplifier 58 (Fig. 3, not shown) via a network 56. The output of each D.C. amplifier is fed to the base of a corresponding transistor 64, to form an amplifier of the type disclosed in Specification 1,002,632, the outputs of the two amplifiers being interconnected as in the arrangement of Fig. 1.
Patent GB-1481734-A (GB)
Title: Open end spinning machine
IPC: D01H1/16
Filed: 1974-10-04
Abstract: 1481734 Open end spinning, openers MASCHINENFABRIK RIETER AG 4 Oct 1974 [19 Oct 1973] 43095/74 Headings DID and D1N Open end spinning machine has a plurality of units including rotor, opener roller, sliver feed roller and drive elements therefore are arranged in a housing which is lowerable into a non-operative position for detaching the drive transmitting elements from associated drive components of the machine, the housing being interlockable in its operative position and, after lowering, completely removable from the machine by a further shifting motion. As shown, the spinning unit is dismountable from the machine frame by rotating eccentric cam 18, 19 so as to lower the unit and thus permit both heads 16 to emerge from slots 17. The belt drives to the rotor and opening roller, air suction lines 11, 12 to the rotor, dirt separator, and electric supply 26 are disconnected by the lowering motion. A lever system (33, 35, 36 and 37, Fig. 2 not shown) may lift the drive belt off the rotor shaft and brake the rotor shaft. A magnetic clutch may interrupt the drive to the feed roll on yarn breakage.
Patent GB-1374995-A (GB)
Title: Optical arrangement
IPC: G02B6/42
Filed: 1971-09-16
Abstract: 1374995 Light guides RANK ORGANISATION Ltd 13 Sept 1972 [16 Sept 1971] 43200/71 Heading G2J [Also in Division G5]  An optical display device, e.g. for road signs, comprises a plurality of light guides, e.g glass fibre bundles 3, grouped together at one end 4 for illuminating by a light source, and arranged at the other end in a pattern (8) lying in a plane 7, and means 9, e.g. a screen, for diffusing or scattering emergent light, located near the plane 7. The bundles 3 have plugs 6 adapted to be inserted, preferably removably, in apertures 7a in a support 7. In modifications, a reflector (11) surrounds the pattern (8), Fig. 5d (not shown), and a reflector (12) may divide the pattern Fig. 6b (not shown) or surround each bundle 3, Fig. 6c (not shown). The end 4 may be divided into two groups for alternative illuminating by the same or different sources to produce interpenetrating figures, Fig. 7 (not shown), and colour filters (18, 19) may be located at the end 4 between the light source 1 and the bundles 3, Figs. 9, 11 (not shown).
Patent GB-862829-A (GB)
Title: Improvements relating to firearms
IPC: F41A9/54
Filed: 1959-12-21
Abstract: 862,829. Cartridge-belt guides. BOFORS A. G. Dec. 21, 1959 [Jan. 31, 1959], No. 43413/59. Class 92. A firearm in which a belt of rounds is fed from a non-elevating magazine through a channel through a trunnion 2 on an elevating part of the firearm has the outer end of the channel, which is in the form of two oppositely disposed sectors of 90 degrees, connected by guiding walls as at 5, 6 and 7 to an oblong slit 4 at its inner end the slit allowing a round to pass only if its axis is positioned parallel with the direction of ramming.
Patent GB-1327218-A (GB)
Title: Fuel cell batteries
IPC: H01M8/24
Filed: 1970-09-10
Abstract: 1327218 Fuel cells SIEMENS AG 10 Sept 1970 [11 Sept 1969] 43439/70 Heading H1B A fuel cell comprises a stack of components A, B arranged alternately, Figs. 3, 4, showing cross-sections along lines C, D and E, F, respectively, of Fig. 1. The stack is completed at each end by a similar-shaped component C, Fig. 5 to form a battery having components in the order CABAB ... AC. Resin is east around the stack to form an insulating casing (not shown). The reactants comprise oxygen which flows through apertures 20 in lugs 1, 6; hydrogen which flows through apertures 20 in lugs 3, 4 and KOH or H 2 SO 4  electrolyte which flows through apertures 20 in lugs 2, 5. Component A comprises diaphragms 7, 8, support structure 9 and sealing frame 10. Component B comprises diaphragms 11, 20, anode 13 and cathode 14, spacers 15, 16, sheet metal conductor 17 and sealing frames 18, 19. Certain of the apertures 20 have channels 21, 22, 23 as shown, for conveyance of the gas or electrolyte to the electrolyte spaces and gas spaces in the components A, B. Thus, channels 21 convey electrolyte, channels 22 convey hydrogen and channels 23 convey oxygen. The component C corresponds to the anode electrode of component B at one end of the stack and the cathode electrode of component B at the other end of the stack and, as shown in Fig. 5, corresponds to anode 13. The materials used for the components A, B, C may be silimar to those described for the components of the fuel cell of Specification 1,327,217, with the exception that when the electrolyte is H 2 SO 4 , the cathodes may consist of powdered activated carbon and the anodes may consist of powdered tungsten carbide.
Patent GB-1245804-A (GB)
Title: Improvements in or relating to process for recovering rhenium values from ion exchange materials
IPC: C01G47/00
Filed: 1968-09-12
Abstract: 1,245,804. Recovering rhenium values. KENNECOTT COPPER CORP. 12 Sept., 1968 [13 Nov., 1967], No. 43509/68.. Heading C1A. Rhenium values are recovered from an aqueous solution containing rhenium and other metals by contacting the solution with an ion exchange medium to effect the transfer of rhenium values from the aqueous solution to the ion exchange medium, removing the rhenium from the ion exchange medium by contacting the medium with an aqueous solution of a thiocyanate thereby effecting the transfer of rhenium values to the thiocyanate solution and recovering the rhenium bearing thiocyanate solution. The thiocyanate solution is preferably an aqueous solution of ammonium, potassium or barium thiocyanate. The ion exchange medium may be a quaternary ammonium chloride in kerosene or an anionic exchange resin. The thiocyanate is preferably a solution of ammonium thiocyanate and the recovered rhenium bearing ammonium thiocyanate may be evaporated to ammonium perrhenate. The solution is preferably evaporated until crystals of ammonium perrhenate begin to form, and is then cooled. The concentration of the thiocyanate may be such that in contact with the rhenium bearing ion exchange the corresponding perrhenate is precipitated.
Patent GB-1236140-A (GB)
Title: Lubricating composition
Inventor: BERGERON KATHARINE SONNTAG
IPC: C10M169/00
Filed: 1969-09-03
Abstract: 1,236,140. Lubricating grease. K. S. BERGERON. 3 Sept., 1969 [6 Jan., 1969], No. 43630/69. Heading C5F. A lubricating composition comprises by weight: at least 1 % of a fish oil-based lead soap, at least 0À5% of a sulphur-modified sperm oil and a base lubricant sufficient to make 100% total. The base lubricant may be a grease comprising a mineral or synthetic oil thickened with Al, Ba, Li, Na or complex Ca soaps or a clay. Suitable synthetic oils are polybutylene and dioctyladipate. The mineral oils may contain brightstocks. The sperm oil may be sulphurized or sulphonated.
Patent GB-1018561-A (GB)
Title: Improvements in or relating to apparatus for charging aerosol containers with propellant
IPC: B65B31/00
Filed: 1962-11-19
Abstract: 1,018,561. Bottling. PRECISION VALVE CORPORATION. Nov. 19, 1962 [Nov. 30, 1961], No. 43668/62. Heading B8T. An adapter, for pressure charging an aerosol container 1 provided with a valve 5 having a valve stem 6 on which is mounted a push button 7, comprises an upper section 8 and a lower section 9 relatively movable against the action of springs 42. When the adapter is introduced to the container 1 downward movement of a head (Fig. 6, not shown) will cause the lower section 9 to bear firmly on the container, and tubular extension 37 of the upper section 8 will slide downwardly relatively to the lower section within a wall 43 of the lower section. Under downward movement a gasket 46 will be compressed between a resilient part 38 of the tubular extension 37 and the valve 5 to hermetically seal a chamber C. Screw-threaded studs 40 received in an upper part 13 of the lower section 9 pass loosely through a lowermost part 12 of the upper section 8 and have heads 41 which engage and keep stationary a ring 48 whilst the casing of the upper section moves downwardly. Pins 50 are carried in the ring 48 and engage rods 52 connected to a slide 15, which is forced against the action of a spring 17 away from the base of the upper part 10 of the upper section when the adapter is pressed downwardly. Upper valves 2 are thus raised from their seats 23 to allow passage of propellant from the head h (Fig. 6) through passage 16 into passages 25. The plunger 28 is forced by pressure of the propellant away from lower valve seat 31, thus propellant flows via the chamber C, push button and valve stem into the container.
Patent GB-870104-A (GB)
Title: Improvements in magnetic recording
Inventor: GOLDMARK PETER C
IPC: G11B5/00
Filed: 1959-12-23
Abstract: 870,104. Magnetic recording-apparatus. MINNESOTA MINING & MANUFACTURING CO. Dec. 23, 1959, No. 43790/59. Drawings to Specification. Class 40 (2). A method of recording sound signals on a magnetic tape comprises separating the signals into upper and lower frequency bands and applying the separated signals to opposite faces of the tape, each band being recorded with a highfrequency bias voltage of optimum value for that band. In the embodiment described, the lower frequency band is applied to the back face of the tape with a head having a somewhat larger gap than normal and carrying a bias voltage higher than that used with a head carrying a full frequency band. A narrow gap head carrying the upper frequency band applies the signals to the normal recording surface of the tape and the bias voltage is adjusted to an optimum value and applied in opposite phase to that supplied to the low-frequency head.
Patent GB-1179440-A (GB)
Title: Oil-Burner Pump and Drive Motor
IPC: H02K5/10
Filed: 1967-09-27
Abstract: 1,179,440. Electric motors driving pumps. LICENTIA PATENT - VERWALTUNGS G.m.b.H. 27 Sept., 1967 [30 Sept., 1966], No. 43918/67. Heading H2A. An electric motor which mounts the hub 2 of a driven oil burner pump 1 in a bore of its bearing bracket 4 has in the end of such bore an annular oil-collecting chamber 9 which is disposed around the end of the motor shaft and is open towards the outside of the bracket at least at one point 10, and projecting with its outer circumference beyond the inner cylindrical wall of the chamber is a centrifuge ring 8 to throw off leakage oil emerging at the pump shaft 5. This prevents such oil damaging the motor bearing 12 especially when the unit is vertically disposed, and as shown the ring 8 is combined with a coupling member 6, and a felt sealing washer 11 is also provided.
Patent GB-937934-A (GB)
Title: Wet-strength papers and methods of producing them
IPC: D21H17/43
Filed: 1959-12-31
Abstract: 937,934. Paper. ROHM & HAAS CO. Dec. 31, 1959 [Jan. 6, 1959], No. 44423/59. Class 96. Porous paper prepared wholly or in part from natural cellulose fibres has its wet strength increased by impregnation, e.g. by dipping, of the substantially dry paper with an aqueous dispersion consisting essentially, i.e. substantially entirely, of a water-insoluble copolymer dispersed in water, and drying and heating of the impregnated paper. The copolymer contains a minor proportion of units corresponding with at least one of: maleic acid, aconitic acid, and their anhydrides, salts and partial amide salts; the balance of the copolymer consists of units corresponding with at least one of: acrylonitrile, vinyltoluene, and esters of acrylic and methacrylic acid. The copolymer is dispersed throughout the mass of the paper. The salts which may be used in the polymer are those of alkali metals, ammonia, or watersoluble amines. The paper used may be sized, e.g. with rosin and papermaker's alum, and may contain also artificial fibres, e.g. of cellulose rayon, cellulose acetate, nylon, polyethylene, terephthalate, acrylonitrile copolymers, copolymers of vinyl chloride and vinyl acetate, or copolymers of vinylidene chloride with vinyl chloride or acrylonitrile, and may be tissue paper or creped. They may subsequently be impregnated with aqueous dispersions of gums, resins, pigments and fillers.