baber/WOPTO huggingface dataset:
Patent GB-1446061-A (GB)
Title: Rf oscillator frequency control utilizing surface wave delay lines
IPC: H03B5/32
Filed: 1973-10-08
Abstract: 1446061 Oscillators; frequency modulation; surface wave devices TEXAS INSTRUMENTS Inc 8 Oct 1973 [30 Oct 1972] 46879/73 Headings H3R H3T and H3U In an oscillator using a surface-wave delay line to determine the frequency of oscillation, the number of interdigital spaces in and separation between the transducers of the delay line are so chosen that zero phase shift occurs approximately at the centre of the resonance curve and so as to permit a narrow resonance curve to ensure oscillation can take place at only one frequency, i.e. so that there is only one point of zero phase-shift within the pass-band. Amplifier 10 comprising a transistor in common-emitter connection is back-coupled over surface-wave delay line 24. The collector 40 of the transistor is coupled to the delay line 24 via an impedancematching resonant # network comprising inductor 54 and capacitors 52, 50, the output from the oscillator being taken from a tap 56 on inductor 54. The output from the delay line 24 is coupled to the base 42 of the transistor by means of an impedance-matching resonant # network comprising inductor 64 and capacitors 60, 62. Base bias for the transistor is derived from a potentiometer comprising resistors 36, 38 and a temperature-sensitive resistor 34 which provides temperature compensation. The oscillator may be frequency-modulated by application of the modulating signal from terminal 68 to the base 42 of the transistor. The Specification describes how the pass-band and phase response of the surface-wave delay line can be separately controlled by variation of the spacing between the input and output transducers and the number of electrodes provided in each transducer (Figs. 2a-2c, not shown).
Patent GB-1007843-A (GB)
Title: A dimeric bis(cyclopentadienyl)butene and process for its preparation
IPC: C08G63/676
Filed: 1962-12-12
Abstract: Dimeric 1,4-bis-(cyclopentadienyl)-butene-2 is prepared by heating the monomer to 70-150 DEG  C.  The monomeric 1,4-bis-(cyclopentadienyl) -butene-2 may be prepared by reacting 1,4 - dichlorobutene - 2 with cyclopentadienyl potassium or sodium or with cyclopentadienyl magnesium bromide when the whole reaction mixture may be heated to 70-150 DEG  C. to obtain the dimer.  The Specification describes but does not claim the preparation of dimeric a ,a 1-bis-(cyclopentadienyl)-para-xylone by adding tertiary butanol to a suspension of sodium in anhydrous tetrahydrofuran after which monomeric cyclopentadiene followed by a ,a 1-dichloro -para-xylene are added, the reaction mass is neutralized with acetic acid and the above dimer recovered by distillation under reduced pressure. Specifications 1,007,841 and 1,007,842 are referred to.
Patent GB-1174186-A (GB)
Title: Refining of copper melts
IPC: C22B15/14
Filed: 1967-10-16
Abstract: 1,174,186. Supplying oxygen to rotary furnaces. MESSER GRIESHEIM G.m.b.H. 16 Oct., 1967 [19 Oct., 1966], No. 47050/67. Heading F4B. [Also in Division C7] Copper melt 10, e.g. of scrap, is fire-refined in revolving reverberatory furnace 1 by injection of oxygen 13 below flame 12. The oxygen is supplied through water-cooled lance 4, which travels on carriage 5, and is emitted from downwardly inclined nozzle 6. Flame 12 is derived from gas, pulverized coal, and/or oil. The oxygen first encounters melt 10 by which it is deflected to the lower side of flame 12 which is thereby maintained at a higher temperature than the remainder of the flame.
Patent GB-1513278-A (GB)
Title: Apparatus for filling valve bags with powdered or granular material
IPC: B65B1/18
Filed: 1975-11-14
Abstract: 1513278 Hoppers HAVER & BOECKER 14 Nov 1975 [22 March 1975] 47122/75 Heading B8S A device for filling bags 33 with powdered or granular material comprises a rotatable silo 10 having a non-rotatable cover 4, material being supplied to the silo 10 from a supply silo 15 through a filling nozzle 18 which is offset from the silo axis, the silo being provided with pipes 32 for filling the bags 33. Rotation of the silo 10 is effected by means of a central shaft 5 which is driven in rotation about its longitudinal axis by a motor (not shown), an overflow pipe 11 which is an integral part of the silo 10 and which surrounds the shaft 5 being provided to permit excess material in the silo 10 to pass therefrom. Adjusting screws (12-14) provide for the horizontal and vertical adjustment of the silo 10 and pipe 11 relative to the central shaft 5, Fig. 3 (not shown).
Patent GB-1158136-A (GB)
Title: Improvements in or relating to Bottle Cleaning
IPC: H03B19/18
Filed: 1966-10-21
Abstract: 1,158,136. Washing bottles. SEITZ-WERKE G.m.b.H. 21 Oct., 1966 [22 Oct., 1965], No. 47131/66. Heading B8T. Cleaning liquid is supplied from a jet-pipe 10 by a pair of nozzles 17, 18 to each compartment 19 of a bottle basket 13. The jet-pipe 10 is split into two passages (15, 16), Fig. 3 (not shown), each passage supplying one of each pair of nozzles 17, 18, and being supplied with cleaning fluid alternately by a rotating valve 22. The valve may be turned by a geared motor. Alternatively a reciprocating valve may be used. The flow of cleaning fluid into the bottle compartments 19, alternating from the pairs of nozzles 17, 18 displaces the bottles 12 within the compartments, enabling labels to be loosened and removed.
Patent GB-1211091-A (GB)
Title: Improvements in a floating platform for open sea
Inventor: WIPKINK JOHANNES
IPC: B63B35/44
Filed: 1967-10-19
Abstract: 1,211,091. Floating offshore platform. INGENIEURSBUREAU MARCON N.V. and SCHEEPSBOUWBELANGEN N.V. 19 Oct., 1967 [1 Sept., 1967], No. 47718/67. Heading E1H. A floating platform comprises vertical columns 3 carried by floaters 1 and supporting a work-deck 5 and a joint 8 of bracings located between the columns with bracings emanating from the joint to upper and lower points of the columns. A vertical bracing 11  connects the joint 8 with a joint of deck girders (in the deck, not shown). The platform has five columns 3 disposed at the comers of a pentagon with the bracings between two adjacent, columns of the five omitted to leave an open face above which a drilling rig is mounted. In a modification, there are only three columns.
Patent GB-1207306-A (GB)
Title: Container closuring
Inventor: ADCOCK EDMOND PHILIP
IPC: B29C65/02
Filed: 1966-10-25
Abstract: 1,207,306. Container closuring; packaging. UMTED GLASS Ltd. 20 Oct., 1967 [25 Oct., 1966], No. 47845/66. Headings B8C and B8T. [Also in Division H5] Containers having a metal cap and a cover membrane squeezed between the cap and container neck are conveyed under an induction coil system which heats the cap to soften thermoplastic material included in or on the membrane, or on the container's lip. This causes removable adherence to the container. The inductance system may consist of two coils, one, 4, oblong and one, 5, circular, the latter lying within the former. The containers move into the influence of the larger coil 4 causing moderate heating of the cap prior to passing under the small coil 5, which gives a momentary boost of heat to soften the thermoplastic material to its sealing condition. This condition is maintained long enough for sealing to take place by the influence of the downstream tail of the larger coil, the heat generated by this coil alone not being capable of causing softening. The arrangement thus avoids scorching the cap's lacquer finish. A resilient pad can be fitted in the cap, and lightly attached to the membrane, to increase the pressure on the membrane, but detaching from it when the cap is removed.
Patent GB-1118350-A (GB)
Title: Improvements in or relating to crankshafts
Inventor: POPE JOSEPH ALBERT
IPC: F16C3/10
Filed: 1965-12-11
Abstract: 1,118,350. Producing metal articles; welding by fusion. MIRRLEES NATIONAL Ltd. 29 Nov., 1966 [11 Dec., 1965], No. 47875/65. Headings B3A and B3R. [Also in Division F2] A prefabricated crankshaft is built-up from units consisting of crankwebs, main journals and crankpins joined at complementary engageable faces by electron beam welding, the welding beam being traversed to cover the area of the faces. As shown, the webs 10 are each formed with half main journal and crankpin portions 11 and 12 resp., whilst in Figs. 2 to 4 (not shown) the main journals and crankpins are separatively formed and welded to bosses or faces on the crankwebs. In Fig. 5 (not shown) the crankwebs are bored to receive the ends of the main journals and crankpins, the mating surfaces then being electron beam welded, whilst in Fig. 6 (not shown) an end flange and crankweb may be joined to a journal by the combination of bore and face welds, Figs. 7 to 10 (not shown) illustrate toothed or splined connections, between relative components, which are traversed by the electron beam and thus welded together. The process is carried out in a high vacuum chamber the beam and/or assembled parts being moved to provide the relative traversing of the faces to be welded.
Patent GB-1455940-A (GB)
Title: Solid electrolyte electrical cells
IPC: H01M6/18
Filed: 1974-11-06
Abstract: 1455940 Solid electrolyte cells DAINI SEIKOSHA KK 6 Nov 1974 [12 Dec 1973 (2)] 48055/74 Heading H1B An electrical cell comprises positive active material 3, negative active material 5 and a solid electrolyte 1, electrically conductive material being inserted in the positive active material. The electrically conductive material may be powdered silver or copper mixed with the positive active material or with both the positive and negative active material. Alternatively, as shown in Fig. 6 the electrically conductive material may be a stainless steel wire 10 welded or soldered to a stainless steel disc 11 and a stainless steel disc 12. The discs 11 and 12 are welded to the cathode cap 6 and the anode cap 7 respectively. The positive active material consists of powdered cupric sulphate pentahydrate, cupric sulphate tri-hydrate and graphite. The negative active material is sodium or sodium alloy and the electrolyte is #-alumina. The conductive material may alternatively be pieces of metal, metal net or pieces of wire. Reference has been directed by the Comptroller to Specification 1,373,340.
Patent GB-1031760-A (GB)
Title: Improvements in or relating to high frequency electric ovens
Inventor: ELVY MONTAGU TERRELL
IPC: H05B6/66
Filed: 1962-12-20
Abstract: 1,031,760. Microwave ovens. PYE Ltd. Dec. 11, 1963 [Dec. 20, 1962], No. 48187/62. Heading H5H. A microwave oven 1 (Fig. 3, not shown) has a row of microswitches 7 at least one of which must be closed, e.g. by the presence of a dish 8, before energy can be supplied. A shelf 5 may have a ridge 13 to retain the dish against the switches, or the door may be arranged to serve this purpose.
Patent GB-1511269-A (GB)
Title: Method of making a catheter with x-ray opaque markings
IPC: A61M25/16
Filed: 1975-11-24
Abstract: 1511269 Catheters SHERWOOD MEDICAL INDUSTRIES Inc 24 Nov 1975 [20 Dec 1974] 48202/75 Heading A5R A catheter 10 having an X-ray opaque marking 20, is produced by extruding a plastics tube having a lumen 14, coating a selected surface area of the tube with a liquid including a plastics material and an X-ray opaque material, and solidifying the coating in situ. The marking 20 is in the form of a ring extending around the most proximal of a plurality of eyes 14 in the distal portion of the catheter. The catheter tube may comprise polyvinyl chloride, the marking being applied by applying polyvinyl chloride and tungsten in a cyclohexanone solvent, the solution then being solidified by air-drying. Alternatively, a plastisol of polyvinyl chloride mixed with tungsten powder is applied to the tube, the liquid coating of tungsten and plastisol being heat cured in situ to solidify the coating. The plastisol may include polyvinyl chloride and di-octylphthalate. The tube may alternatively comprise polyurethane or silicone rubber, the coatings containing tungsten powder mixed with polyurethane or silicone rubber respectively. A modified form of catheter (22), Fig. 2, (not shown), has an enlarged frustoconical proximal end (24) and three dots (26) of X-ray opaque material on the distal end portion thereof, the distal tip of the catheter also having an X-ay opaque coating (28). Alternatively, the X-ray opaque marking may be in the form of a peripheral ring (32), Fig. 3, (not shown), or a strip (34) Fig. 4, (not shown), extending lengthwise on the catheter. Barium sulphate or tin may alternatively be used instead of tungsten, and the polyvinyl chloride may contain stabilizers and softeners. Fillers and pigments may be added to the liquid coating.
Patent GB-1439216-A (GB)
Title: Ink-jet printers
IPC: B41J2/075
Filed: 1973-10-19
Abstract: 1439216 Ink jet printers OKI ELECTRIC INDUSTRY CO Ltd 19 Oct 1973 [24 Oct 1972 28 Dec 1972] 48738/73 Heading B6F [Also in Division G4] In an ink jet printer, an ink stream 108 is directed between charging plates 109, 110, and at least one pair of deflection plates 111, 112 supplied with a periodic waveform voltage such that successive charged droplets in a group of droplets are deflected by increasing amounts. A further pair of deflection plates 113, 114 may be provided, set to deflect the droplets in a direction perpendicular to that of the plates 111, 112, and may be supplied with a periodic waveform of longer period. The droplet generator may be continuously moved, the deflection plates acting in the direction of movement being switched off or removed entirely. The charge on a droplet may be adjusted according to the charges on neighbouring droplets to compensate for errors resulting from differing pneumatic resistance.
Patent GB-1347749-A (GB)
Title: Side-lift loaders
IPC: B66F9/10
Filed: 1971-10-20
Abstract: 1347749 Masted lift trucks ROBERT BOSCH GmbH 20 Oct 1971 [21 Oct 1970] 48751/71 Heading B8H The mast 11 of a side-operating lift truck is moved into and out of a recess in the vehicle frame by means of a ram 20 and a parallelogram linkage 15, 16. The mast is mounted on a beam 14 which is provided with rollers 22 running on tracks 23 and which is connected by the parallel links 15, 16 to members 17, 18, pivoted on the truck frame and interconnected by a link 19. The mast is provided with a ground-engaging roller 36 which is raised from the ground when the mast is fully retracted into the recess in which position the rollers 22 on the beam 14 are raised up an inclined portion 25 of the tracks 23.
Patent GB-1029338-A (GB)
Title: Outboard propulsion apparatus
IPC: F02B61/04
Filed: 1964-12-03
Abstract: 1,029,338. Outboard propulsion apparatus. YANMAR DIESEL ENGINE CO. Ltd. Dec. 3, 1964 [Dec. 6, 1963], No. 49239/64. Heading B7V. [Also in Division F1] An outboard propulsion apparatus has the engine lubricating oil sump and the oil cooler arranged side-by-side in an intermediate body portion of the apparatus so that the water jacket section 5 of said lubricating oil cooler is disposed adajcent said oil sump 1, a partition 29 (provided with fins 19) separating the sump 1 from the oil cooler, and means (inlet 25, pump 11 on driving shaft 27, outlets 21, 23) for circulating cooling water through the water jacket section 5 of the oil cooler so that the cooling water flowing through said section can simultaneously cool the oil in the cooler core 3 of the oil cooler and the oil in the sump 1.
Patent GB-1511569-A (GB)
Title: Circuit for frequency to voltage conversion
IPC: G01R23/06
Filed: 1975-12-01
Abstract: 1511569 Measuring density MMG AUTOMATIKA MUVEK 1 Dec 1975 49279/75 Heading G1G [Also in Division H3] A circuit arrangement suitable for producing a linear relationship between a measured parameter e.g. density measured by a fluid and gas density probe of the oscillating type, and an output voltage by controlling the input output characteristics of a frequency to voltage converter to compensate the non-linearity introduced by the measuring device, wherein the f#v converter comprises a conventional linear converter e.g. a diode pump of the cup and bucket type, feeding a D.C. amplifier with the amplifier output and a constant voltage sourve U T  connected in series to provide a supply voltage for the converter variable in dependence upon the input frequency. The input output characteristic may be further adjusted by varying the gain of amplifier E e.g. by varying R5 and by causing resistors R  10 , R  11  to progressively shunt R 6  at higher output voltage levels.
Patent GB-1094094-A (GB)
Title: Improvements in or relating to burners for gaseous fuel
IPC: F23D14/06
Filed: 1964-12-03
Abstract: 1,094,094. Burners. B. E. ARTHUR. Dec. 3, 1964, No. 49290/64. Heading F4T. A burner comprises an inverted bowl 22, secured at its centre to a burner pipe 18, with a bowl shaped burner cap 24 mounted on it and spaced therefrom providing a uniform gap 26, the burner cap having perforations 30 about a continuous substantial part of its periphery 28 so that a ring of ignited gas issuing from the perforations is discontinuous at a section 32 of the periphery thereby allowing secondary air to enter inside the flame to complete the combustion. In the embodiment shown the burner is intended to screw into a pressure bottle containing for example propane, and the gas flowing out of the nozzle 16 mixes with primary air entering apertures 20 before burning.
Patent GB-998662-A (GB)
Title: Device for stabilization of electric voltage
IPC: G05F1/12
Filed: 1963-12-13
Abstract: 998,662. Voltage stabilizers. CESKOSLOVENSKA AKADEMIE VED. Dec. 13, 1963 [Dec.19, 1962], No. 49360/63. Heading G3X. A voltage stabilizer comprises a body 1 of anisotropic dielectric material, e.g. triglycine sulphate, which has non-linear dielectric properties along an axis 6 and linear dielectric properties at right angles to this axis, and which is provided with electrodes 2, 3 to form one capacitor and electrodes 4, 5 to form a second capacitor. The capacitors are connected in series to form a non-linear capacitive voltage divider by joining electrodes 3 and 4; the electrodes 2 and 5 are connected to an , unstabilized input voltage, and a stabilized output voltage is taken from electrodes 4 and 5. In operation variations in input voltage cause compensating variations in the capacitance of capacitor 4, 5 which constitutes the non-linear section of the voltage divider whereby the output voltage remains substantially constant.
Patent GB-1179100-A (GB)
Title: Method of and Apparatus for Connecting the Wires of Two Groups of Wires.
IPC: H01R43/042
Filed: 1967-11-01
Abstract: 1,179,100. Crimping pliers. AMP Inc. 1 Nov., 1967 [23 Nov., 1966], No. 49545/67. Heading B4W. [Also in Divisions B3 and H2] Wires of a group of juxtaposed wires are connected to corresponding wires of another group of juxtaposed wires by a method comprising separating the wires of each group to form a gap between the wires at a position inward of first ends of the wires, juxtaposing the groups with the gaps in coincidence and simultaneously electrically connecting e.g. by crimping, the separated portions of the wires of one group to the separated portions of the corresponding wires of the other group on either side of the gaps and severing each wire of each group between its first end and its connection to the corresponding wire of the other group. In joining the separated portions of two pairs of wires, one wire of each pair (i.e. corresponding wires), is located between one of a pair of dies 62, 62<SP>1</SP> and an anvil 78 defining two anvil surfaces (80, 80<SP>1</SP>) (Fig. 2, not shown) in such a way that it is held at one side of the crimping pliers in a wire guide of lesser depth and at the other side in a wire guide of greater depth. The wire guides e.g. guides 100, 102, are provided for locating each of the four wires, and are arranged in pairs of which of each pair one guide has a greater depth than the other. Resilient wire retaining members e.g. members 104, 106, are provided in each guide. The other wire of each pair is similarly located between the other die 62, 62<SP>1</SP> and anvil 78. Connectors 30, 30<SP>1</SP>, which have insulating coatings on their exterior surfaces, are positioned on the anvil surfaces and the levers 44, 46 squeezed. As the dies move together towards the anvil the free ends of the wires are severed by the cooperation of the dies 62, 621 with shear bars 82, 82<SP>1</SP>, 84, 84<SP>1</SP>, and the connectors are crimped at the cross-joint of the corresponding wires. A modified form of the pliers is used for connecting wires which do not extend towards, but are juxtaposed with, each other.
Patent GB-1104869-A (GB)
Title: Thread-cutting apparatus for circular knitting machines
IPC: D04B35/00
Filed: 1966-11-04
Abstract: A yarn cutting device of a circular knitting machine comprises a stationary cutter co-operating with the continuous cutting edge of a rotating circular cutter arranged substantially horizontally inside the needle circle.  The cutter may be mounted concentrically on a transfer dial above or below the transfer jacks; in which former case the dial is lowerable to ensure the yarns are cut close to the fabric.  Alternatively the cutter may be eccentrically mounted above the needle cylinder.
Patent GB-1448024-A (GB)
Title: Drain valve
IPC: F01M11/04
Filed: 1973-10-25
Abstract: 1448024 Valves BLSCHWARY 25 Oct 1973 [30 Oct 1972] 49804/73 Heading F2V A drain valve comprises an inlet 22, an outlet 24, a piston valve member 23 actuated by a flexible cable 29, and a deflector 36 to redirect fluid flowing from the outlet. The piston may be locked in the open and closed positions (Figs. 1 and 5, not shown). The cable is secured to a rack 30 of the piston so as to allow the latter to rotate.
Patent GB-1125252-A (GB)
Title: Method of making synthetic diamond crystals
IPC: B01J3/06
Filed: 1966-11-08
Abstract: 1,125,252. Synthetic Diamonds. TOKYO SHIBAURA ELECTRIC CO. Ltd. 8 Nov., 1966 [20 Nov., 1965], No. 49897/66. Heading C1A. Synthetic diamonds are prepared by heating a carbonaceous material to at least 1200 C. under a pressure of at least 50,000 atmospheres in the presence of a catalyst which includes at least one of the elements titanium, hafnium and zirconium, and at least one of the elements copper, silver and gold, and does not contain iron, nickel, cobalt, platinum, palladium, ruthenium, osmium, iridium, rhodium, chromium, manganese or tungsten. The carbonaceous substance may be for example, graphite, amorphous carbon, coal, coke, charcoal, or an organic substance such as coal tar, pitch, wood, paper, napthalene or paraffin, and the catalyst, may contain several metals or metal compounds such as carbides, the elements or compounds being if a mixture or alloyed. The reaction time is between 5 and 20 minutes. The diamonds formed are colourless and have a grain size ranging from tens of microns to 0À4 mm. They are substantially free from crystallites.