baber/WOPTO huggingface dataset:
Patent GB-1438657-A (GB)
Title: Electrical connectors
IPC: H01R4/24
Filed: 1972-08-23
Abstract: 1438657 Electrical connectors POST OFFICE 22 Aug 1973 [23 Aug 1972] 39283/72 Heading H2E A connector comprises a portion having a mouth 12, a tongue 18 for movement through the mouth and means, e.g. a concave portion on the end of the tongue (Fig. 3, not shown) to assist in locating an insulated conductor 24 across the mouth. In use, Fig. 4, tongue 18 is moved, e.g. by pliers, through the mouth to force the conductor past the edges of the mouth which so strip lengths of insulation from the conductor and make an electrical connection to the conductor. In Fig. 6, not shown, three tongues are provided, a central one (46) to strip off the conductor insulation and make a connection, an end one (54) to chop off the unwanted end portion of the wire and one (56) adjacent the point where the wire enters the connector which deforms the wire and acts as a strain relief device. In Fig. 5, not shown, a plastics terminal block has posts (36) between which connectors can be pushed, the posts being such that insertion of a connector causes it to be compressed and strip the insulation from a wire; more than one wire may be provided in each connector. In Fig. 12, not shown, associated grooves in the mouth receive separate wires so that on insertion of the tongue (168) associated lengths of the two wires are stripped and brought into electrical connection.
Patent GB-1394192-A (GB)
Title: Fan inlet throat
IPC: F04D29/54
Filed: 1972-08-23
Abstract: 1394192 Axial-flow and centrifugal fans SVENSKA FLAKTFABRIKEN AB 23 Aug 1972 [26 Aug 1971] 39304/72 Heading F1C A fan inlet throat comprises at least one pair of rings 2, 3 of different internal diameter and arranged close to one another with the ring 2 of greater internal diameter disposed upstream of the ring 3, the rings being connected by an annular plate 1 having its outer and inner diameters substantially corresponding to the respective internal diameters of the rings 2, 3, the resultant abrupt reduction of flow area creating a toroidal vortex 8 rolling against the annular plate, and the axial length L of the two rings and the internal diameters D 2  and D 1  of the rings 2 and 3 respectively being such that:- The invention may be applied to a centrifugal fan, the ring 3 then either being spaced axially from the impeller or protruding into the impeller eye.
Patent GB-1492680-A (GB)
Title: Process of preparing a lasable gaseous mixture
IPC: F01K9/04
Filed: 1975-09-25
Abstract: 1492680 Lasers AVCO EVEREST RESEARCH LABORATORY Inc 25 Sept 1975 [17 Oct 1974] 39408/75 Heading H1C A laser gas mixture of CO 2 , N 3  and H 2  for use in a flowing gas, electron beam sustainer stabilized, gas discharge laser, is prepared by burning a hydrocarbon fuel in the presence of air under such conditions that substantially all the air is consumed to produce products of combustion including CO 2 , N 2  and H 2 , the rerequired gases being then substantially separated from the remaining combustion products and collected. The fuel may be gasoline, kerosene, fuel oil, JP4 or JP5, and exhaust gases from a turbine may be used provided excess air is removed by an after burner. Any water vapour present in the combustion products is removed by cooling in a water-cooled heat exchanger and a dry ice bath; any residual smoke being removed with the condensate. The gas may be stored under pressure before use or be applied directly to the discharge section of the laser through a compressor. The active gas may include a proportion of CO.
Patent GB-338417-A (GB)
Title: Thread-cutting mechanisms for sewing machines
IPC: D05B57/00
Filed: 1929-12-27
Abstract: 338,417. Fairweather, W., (Singer Manufacturing Co.). Dec. 27, 1929. Thread-cutters and thread-end holders.-Thread-cutting and nipping mechanism for a two-thread machine such as described in Specification 4417/08 located to one side of the needle-hole in the throat-plate, has a thread bender to carry the underthread into range of the movable blade of the cutter. The invention is illustrated as applied to a straight buttonhole sewing machine. The needle vibrates laterally and works through a slot 11 in the throat-plate 12. The last stitch is made, as is usual, as close as possible to the thread-cutter and nipper, which comprise stationary cutting and nipping blades 16, 17 between which are pivoted at 18 the movable cutting and nipping blades 19, 20 respectively. The cutter 19 has an actuating arm 21 to engage the operating push bars 23, 24. The movable nipper blade 20 is pivoted to the cutter blade. The device is mounted by screws to the under side of the guide rib of the cross slide 7, close to the slot 11 but out of alignment therewith. A thread bender 28, pivoted at 27 on the plate 7, is therefore provided to bring the under-thread t into range of the cutting and nipping mechanism. The bender has a horizontal slot 29 providing top and bottom legs 30, 31, Fig. 7, straddling the movable blades 19, 20. The legs have thread-catching fingers 32, 33 to convey the thread to the cutters and nippers. The arm is actuated by a link connection 34 with a slide bar 35 carrying a stud 36 embraced by the end 37 of a lever 38 operated by the rock shaft 43.
Patent GB-1113721-A (GB)
Title: Rolling mill or calender
Inventor: O'BRIEN JEREMIAH WAGNER
IPC: B21B37/68
Filed: 1964-09-29
Abstract: 1,113,721. Papermaking. UNITED ENGINEERING & FOUNDRY CO. 14 Sept., 1965 [29 Sept., 1964], No. 39689/64. Heading D2A. [Also in Division B3]. A rolling mill or calender comprises from two to six stands, the first two 10, 11 Figs. 1 and 2 of which have working rolls 14, 15, supported in chocks 18, and back up rolls 16, 17 supported in chocks 22, the chocks being urged apart by piston assembles 25, 27. Entry guides 23, 24 for strip S are provided for each stand, and means are provided between the stands which detect any camber on the strip, and cause the piston assemblies 25, 27 on one end of the rolls to be actuated, so as to increase the pressure on the other side, so that the latter side of the strip is stretched, to thus correct the camber, and allow the strip to pass through guide 24. In operation, pressure is supplied to piston assemblies 25, 27 through control valves (33) (41) Fig. 5 (not shown), and the rolls are balanced. Once the strip enters stand 10 its load cell 42 is actuated to thus initiate the operation of the camber detecting means. If the strip is cambered the required valve (33) or (41) is actuated, and the rolls are tilted. When the strip passes through stand 11, its load cell 42 is actuated and the rolls are returned to a balanced pressure. The camber detecting means comprises a platform 40 Figs. 2 and 3, supporting a pair of opposite hand screwed shafts 43, 44, driven through a  chain drive 47 by a motor 49, and frames 45, 46 which can be transversed along the shafts in opposite directions. Each frame carries two pivotable arms 52, 53 having strip engaging rollers 54, 55 at one end, and bell crank levers at the other end, connected to links 58, 59. Connected to the latter are rods 63, 64 which carry brackets 67, 68 at their ends, which brackets form part of a pneumatic hydraulic controller 69. When rollers on one side of the strip are displaced due to a camber, at least one of the brackets 67, 68 is displaced, and this movement is detected by controller 69, which then actuates valve 33, or 41 to tilt the rolls, and correct the camber. In a mill Fig. 6 (not shown) camber on the strip (S) as it leaves the mill to be sheared by a side trimming shear 72, is corrected as described above.
Patent GB-1473147-A (GB)
IPC: A47K7/03
Filed: 1974-09-13
Abstract: 1473147 Pads MINNESOTA MINING & Mfg CO 13 Sept 1974 [14 Sept 1973] 40094/74 Heading A4F  A pad particularly for bathing the human body comprises a core of solid soap surrounded by a seamless edgeless envelope of crimped, stiff, resilient synthetic organic fibres of at least 3cm long. The pad being of a size capable of being readily held in the palm of the user. The pad may be formed by surrounding a sphere of soap with a bath of crimped loose fibres and needling the fibres with felting needles predominantly tangentially to unite them and also normal to the soap to cause slight entanglement therewith. Alternatively a ball of loose fibres is formed into an integral spherical form by needling and then melted soap can be injected or impregnated into its interior to form a solid core. Several suitable plastics fibres are specified for use in the envelope.
Patent GB-1079649-A (GB)
Title: Improvements in or relating to cooling systems for vehicle internal-combustion engines
Inventor: MIDDLESWORTH TOMMY A
IPC: F01P3/18
Filed: 1964-10-02
Abstract: 1,079,649. Cooling motors. INTERNATIONAL HARVESTER CO. Oct. 2, 1964, No. 40173/64. Heading B7H. [Also in Division F1] The engine of a combine harvester is provided with a fan situated between the engine 14 and radiator and driving cooling air towards the engine side of the radiator through a guide duct 41, the fan having connected thereto a rotating screen 30 which filters the air drawn in by the fan. The screen 30 is connected to the fan blades and fits closely within an entry hole (46), Fig. 4 (not shown), in the end of the duct 41, a transverse baffle (47) serving to damp out rotation in the cooling air stream inside the duct. The radiator does not extend above the top of the engine 14.
Patent GB-1111327-A (GB)
Title: After-treatment of polymers
IPC: C08G2/00
Filed: 1965-09-22
Abstract: The thermal stability of oxymethylene polymers containing oxyalkylene groups having adjacent carbon atoms is improved by heating the polymer in solution in an aqueous liquid containing 50 to 99% of trioxane to a high enough temperature to cause the polymer to dissolve.  Part of the water may be replaced by an organic hydroxy compound and the solvent effect may be modified by the addition of ethers, ketones or esters.  It is preferred to conduct the treatment at a pH of 7 or higher, i.e. in the presence of a strong base.  The copolymer used in the examples is one of trioxane with 2% ethylene oxide.
Patent GB-914138-A (GB)
Title: An improved pole wheel construction for dynamo-electric machines
IPC: H02K1/28
Filed: 1960-11-28
Abstract: 914,138. Rotor constructions. MASCHINENFABRIK OERLIKON. Nov. 28, 1960 [Dec. 8, 1959], No. 40847/60. Class 35. Rotor poles 1 are attached to a hub by means of dovetails 3 which are separated by incisions 4 to prevent the spread of cracks. Similar incisions perpendicular to the longitudinal axis of the hub divide the mating dove-tail in the hub into sections. End plates may be used to prevent any part becoming detached.
Patent GB-1127014-A (GB)
Title: Correction of screw position for effect of roll bending of a rolling mill
Inventor: O'BRIEN JEREMIAH WAGNER
IPC: B21B37/38
Filed: 1964-10-08
Abstract: 1,127,014. Automatic control of rolling. UNITED ENG. & FOUNDRY CO. Sept.23, 1965 [Oct. 8, 19641, No. 41169/ 64. Heading G3R. [Also in Division B3] In a rolling mill, signals related to the force between the rolls, the roll pass setting, and the bending force applied to prevent bowing of the rolls, are utilised to maintain a constant distance between the rolls. In Figs. 1, hydraulic thrusters 23, 26 apply forces through links 21, 24 to extensions of backup rolls 15, 16 of a rolling mill so as to counter the bending moments imposed on the rolls by material being rolled. Roll gap setting is by screws 28 having fine adjustment by hydraulic thrusters 30 operating worms 31. In Fig. 2, transducers 41, 28, 27 responsive to the hydraulic pressure applied to thrusters 23, the position of screws 28, and the stress in the mill, respectively, produce electrical signals which are combined in appropriate proportions and senses to produce a signal representative of material thickness which is compared with a signal representing desired thickness set by a potentiometer 62. Any difference operates a hydraulic valve 66 to correct the thickness by controlling hydraulic screw-down motors 30. With a switch 72 in the position shown, an appropriate combination of signals from transducers 41 and 27 operates a hydraulic valve 37 to maintain correct compensation of bending moment by controlling thrusters 23 and 26. With switch 72 in its other position, compensation may be controlled manually by operating a potentiometer 74.
Patent GB-981640-A (GB)
Title: Improvements in or relating to containers made from synthetic organic thermoplastic materials
Inventor: PRICE DENNIS WARREN
IPC: B29C49/00
Filed: 1962-11-01
Abstract: 981,640. Moulding decorated thermoplastic containers. METAL BOX CO. Ltd. Oct. 9, 1963 [Nov. 1, 1962], No. 41418/62. Heading B5A. A method of producing an exteriorly decorated container of synthetic organic thermoplastic material, e.g. polyethylene, polystyrene or rigid polyvinyl chloride, comprises making a preform, printing on an exterior portion of the preform and heating it to a temperature at which it will be deformable, and reforming the preform in a mould by application of internal pressure. The preform is preferably made by blow moulding. The printing may be applied by offset printing, a screen process or transfer labelling. Part of the finished container may be of smaller cross-section than the original preform since shrinking occurs on heating. The internal pressure may be provided by air, hydraulic or mechanical pressure. The temperature of the mould may be controlled during reforming of the container.
Patent GB-1112737-A (GB)
Title: Improvements in or relating to a high-voltage potential divider
IPC: H03H7/24
Filed: 1966-09-16
Abstract: 1,112,737. Accessories for cathode-ray oscilloscopes. MICAFIL A.G. 16 Sept., 1966 [17 Sept., 1965], No. 41485/66. Heading H4T. In the oscillographic measurement of high surge voltages (i.e. between 1 kv. and several mv.) the oscilloscope K.O. is connected to the voltage source terminal H by means of a coaxial line L and a potential divider having a high_ voltage section comprising resistors R d , D, C and a medium voltage section comprising resistors B, A, the resistors being so chosen that, for a desired division ratio, the impedance (resistance) at the junction N of the medium voltage section when terminal H is earthed, is equal to the characteristic impedance Z of the line L which, preferably, is also equal to the input impedance (resistance) R E  of the oscilloscope. Resistor R d  of the high-voltage section acts as a damping resistor and a guard ring R is connected to the junction of R d  and D and has a size chosen to give a desired distribution of capacitance along the potential divider.
Patent GB-1246440-A (GB)
Title: Aquarium frame
Inventor: VOSS JOSEF
IPC: A01K63/00
Filed: 1970-08-28
Abstract: 1,246,440. Aquarium frame. J. VOSS. 28 Aug., 1970 [14 Oct., 1969], No. 41509/69. Heading A1A. An aquarium frame is formed by generally L-section bars (Fig. 4) mitred together at the corners (Fig. 3) and held in position by corner inserts 30 (Fig. 8) having 3 mutually perpendicular arms 31a, b and c. The arms are inserted into the ends of the angular cavities 17 formed in the bars by longitudinal flanges 15 and are retained by portions 16a of the flanges being pressed into recesses 33 in the arms. The arms have longitudinal grooves 13 opening inwards to accommodate sealing strips (20) against which panes 4 rest. The joints between the panes are sealed on the inside by flexible adhesive 4a.
Patent GB-1393290-A (GB)
Title: Travelling wave shedding looms
IPC: D03D47/26
Filed: 1972-09-08
Abstract: 1393290 Travelling wave shed looms WIRKMASCHINENBAU KARL-MARX-STADT VEB 8 Sept 1972 41720/72 Heading DIE In a travelling wave shedding loom, the shaft 6 carrying the discs 2 which pick the shuttle and beat-up the weft is in two parts 6, 28 which are coupled together in the zone where the shaft passes through a shuttle receiving and transport drum 3 as described in Specification 1376681, so that the drum 3 and shaft part 28 are displaceable away from the weaving areas, to allow removal of shaft 6 and disc 2. The shaft parts are coupled by a dog coupling 27 with an eccentric pin arrangement to prevent recoupling 180‹ out of phase.
Patent GB-944483-A (GB)
Title: Improvements in or relating to tedders
IPC: A01D78/00
Filed: 1961-11-22
Abstract: The subject matter of this Specification is the same as that of Specification 944,481 but the claims differ.  Specifications 944,482, 944,484, 944,485, 944,486 and 944,487 also are referred to.
Patent GB-1278828-A (GB)
Title: Improvements in or relating to the production of nitric acid
Inventor: MARZO-RODRIGO LUIS
IPC: C01B21/26
Filed: 1969-08-22
Abstract: 1278828 Oxides of nitrogen; nitric acid L MARZO-RODRIGO 22 Aug 1969 42029/69 Heading C1A Nitric acid is prepared by catalytic oxidation of superheated NH 3  vapour with compressed air, followed by cooling, and absorption of NO 2  in water to yield HNO 3 , wherein NH 3  is superheated by indirect heat exchange with a secondary stream of compressed air from a compressor, this air thereafter being passed through the product HNO 3  solution to bleach it and then mixed with the oxidation reaction gases to oxidize NO present to NO 2  prior to absorption, and the tail gases from the absorber are used to cool, in a heat exchanger, the hot reaction gases from the catalytic oxidation stage, and then passed to a turbine for operating the compressor. The superheating of NH 3  may be supplemented by controlled indirect steam heat exchange. The tail gases may be heated by indirect exchange with the exhaust gases from the turbine before being used to cool the oxidation reaction gases. The final oxidation of NO to NO 2  is preferably carried out before the dew point of the gases is reached.
Patent GB-1071358-A (GB)
Title: Musical instrument
IPC: G10H3/20
Filed: 1964-10-16
Abstract: 1,071,358. Electrophonic vibrophone. D. H. STEMBER. Jan. 17, 1966 [Oct. 16, 1964], No. 42287/64. Heading G5J. When cord-mounted bar 1 is struck by a hammer or mallet, manipulated by the player of the vibrophone-type instrument of which it is part, electromagnetic transducer 2 causes speaker 5 to emit sound while bar 1 vibrates. Mixer unit 3 and controllable gain amplifier 4 combine with controllable frequency oscillator 6 to vary the effect obtained. Associated controls include an on-off switch, volume and tone controls, an oscillator rate control, an oscillator rate modulation switch and a by-pass control which enables the oscillator to be wholly or partially by-passed. Bars 1 may be of aluminium or aluminium alloy and may have damping means on their outer ends to facilitate the use of four mallet techniques. The instrument may be powered by mains or battery current and the speaker and amplifier incorporated in the instrument may be replaced by an external mains-fed amplifier. Optionally the transducers associated with each bar may be replaced by a long coil common to each row of bars.
Patent GB-1135736-A (GB)
Title: Reinforced panel for forms for casting concrete walls
Inventor: BOWDEN GEORGE FRANCIS
IPC: E04G9/02
Filed: 1966-09-23
Abstract: 1,135,736. Formwork panel. SYMONS MFG. CO. 23 Sept., 1966, No. 42638/66. Heading E1S. A panel for formwork for casting walls comprises a plywood facing 120 and a rectangular frame 122 reinforced by transverse bars 124 each consisting of a flat base on which is a diagonal rib 150. The bar is formed by folding a flat strip along diagonal lines. The panels are connected together by wedges in slots in T-bolts in slots in the panel frames. One end of each rib is below one such connection and the other end above the connection on the other side of the panel. The formworks on each side of the wall to be cast are connected together by slotted ties 18.
Patent GB-882740-A (GB)
Title: Process and device for heat-sealing film or sheet materials
IPC: B29C53/48
Filed: 1959-12-16
Abstract: 882,740. Seaming non-metallic sheet materials. ATELIERS DE CONSTRUCTIONS MECANIQUES C. & A. HOLWEG. Dec. 16, 1959 [Jan. 5, 1959], No. 42758/59. Class 42 (1). Also in Group XI] A process for sealing film or sheet materials composed of or coated with a thermoplastic resin, comprises separately heating by radiation opposing material surface portions which are to be sealed together and bringing these portions into contact under pressure to effect a seal. As shown, two sheets 1 and 2 to be sealed along their longitudinal edges pass one each side of a heating element 4, being held away from the element by guide means not shown, and are then pressed together by rollers 5, only one of which is shown. Preferably the heat supplied to the material to be sealed is controlled automatically in dependence on the rate at which the material is being sealed. For this purpose the electric heating element is fed from a circuit including a self-saturated magnetic amplifier connected in series with the element and with a source of current, the amplifier comprising a base control circuit which is so fed as to supply enough heat to perform the welding operation at the set speed, and a varying control circuit associated with a tachometric dynamo driven synchronously with the material and supplying to the circuit a current responsive to the speed of travel of the material so that the quantity of heat furnished by the element remains proportional to the operative speed. A premagnetizing circuit is preferably associated with the amplifier so as to cause the same to be operative on the straight portion of its characteristic curve.
Patent GB-1466008-A (GB)
Title: Moulds for the continuous casting of molten metal
IPC: B22D11/055
Filed: 1974-10-03
Abstract: 1466008 Continuous casting INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAISE 3 Oct 1974 [19 Oct 1973] 42865/74 Heading B3F Molten metal, e.g. steel, is fed continuously into a mould 1 and the molten core of the casting is put in motion by an electromagnetic inductor 24, located between a jacket 5 and a casing 13, to be cooled by liquid which flows (from an outermost space 12) beneath a ring 14 which seals the inductor space 16, into the inner space 6 between the mould 1 and jacket 5 before passing out at the top into the inductor space 16 and discharged through a pipe 17. The inductor 24 comprises six coils 25 fitted on a tube 26 of resin-impregnated asbestos and separated by annuli 28 with through-ducts 29 interconnecting the two parts of the space 16 divided by the inductor. The six coils are connected in pairs to constitute three delta arrangements in the manner of a linear motor stator. They may also be impregnated with resin so that the assembly 25, 26, 28 is a rigid cylinder. Water is introduced at pipe 32 at 4 kg./cm<SP>2</SP>. pressure into an external casing 4, flows at 6- 10 m./sec. in the space 6 and its temperature is raised by less than 10‹ C. before it flows out. The mould is of Cu or Cu-Ag alloy and, like its stainless steel jacket 5, is of square crosssection, but the other main members are cylindrical.
Patent GB-955867-A (GB)
Title: A process for dyeing leather and articles composed thereof
IPC: A43D95/06
Filed: 1961-12-01
Abstract: Articles of leather are dyed by first subjecting the leather to a shot- or sand-blasting treatment in a suitable machine and thereafter applying to it a dye solution, stain or lacquer. After the shot- or sand-blasting and before the dyeing the leather surface may be sponged or washed with an alcoholic solution of nitrocellulose or methylcellulose.  The process is particularly applicable to leather shoes.  The dye, solution or lacquer is preferably applied by means of an air-operated spray gun or nozzle and the article so treated allowed to dry.  Further applications can then be made as required.