baber/WOPTO huggingface dataset:
Patent GB-1337528-A (GB)
Title: Printing h'mer
IPC: B41J9/38
Filed: 1972-08-21
Abstract: 1337528 Selective printing PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 Aug 1972 [24 Aug 1971] 38917/72 Heading B6F Hammer mechanism.-A hammer 3 supported on two leaf springs 4, 5 has a "printed circuit" moving coil 2 fastened thereto. The hammer is arranged in a permanent magnetic field so that upon passing a current through the coil, the hammer moves to cause impression. The substrate 1 for the printed circuit coil 2 is a ferromagnetic material, preferably an oxide ceramic material (ferrite). The coil may be formed on both sides of the substrate (Figs, 2 and 3) and may be proud of the surface or formed in recesses (Fig. 4). For producing the permanent magnetic field, oxide ceramic permanent magnets are preferred. The coil surface is coated with a temperature-resistant layer which may consist of a glaze provided during the burning-in process subsequent to forming the circuit. This surface safeguards against short circuiting.
Patent GB-858840-A (GB)
Title: Apparatus for orientating cans
IPC: B65G47/256
Filed: 1958-12-03
Abstract: 858,840. Orientating cans. HYGRADE FOOD PRODUCTS CORPORATION. Dec. 3, 1958 [Dec. 5, 1957], No. 38955/58. Class 78 (1). Cams 10 roll down a track 14 (shown in plan) with their rims supported on rails 15, 16 and pass contacts 20, 21. As they do so, the cans which present a conductive end to the contacts establish a circuit which causes extensions 17, 18 of the rails 15, 16 to be withdrawn so that the can falls on to a lower track 19 (not shown). Cans presenting non-conductive ends to the contacts roll through reversing guides and then re-joining the others. A switch 22 in the path of the cans ensures that the circuit remains open until the end surface of the can engages the contacts thus eliminating faulty actuation due to insulation being rubbed off the rim of a can.
Patent GB-1215529-A (GB)
Title: Nautical ice-breaking structures
Inventor: ALEXANDER SCOTT ERIC
IPC: B63B35/08
Filed: 1968-08-15
Abstract: 1,215,529. Ice-breaking. ALEXBOW CANADA Ltd. 15 Aug., 1968 [15 Aug., 1967], No. 39020/68. Heading B7A. A low structure 10 for ice-breaking comprises two relatively inclined surfaces 21 for deflecting ice and a vertical blade 23 for splitting it. In Fig. 2, surfaces 21 have portions facing upwardly and forwardly and upper curved portions 22. The surfaces 21 intersect in a vertical plane, blade 23 extending upwardly from the line of intersection. The blade has tapered ends and is of uniform height in the region of the water level. A bottom plate (20, Fig. 3, not shown) joins the bottom edges of the surfaces 21. A hollow portion 11 contains tanks for ballast and has a slot (12) to receive a bow of a vessel which will push the structure 10 ahead of it. Alternatively a bow of a vessel is formed with the deflecting surfaces and blade.
Patent GB-1506385-A (GB)
Title: Windscreen wipers
IPC: B60S1/40
Filed: 1975-09-05
Abstract: 1506385 Windscreen wipers TRICO - FOLBERTH Ltd 5 Sept 1975 [7 Sept 1974] 39184/74 Addition to 1414304 Heading A4F A connector as described and claimed in Parent Specification or Specification 1414304 is used with an adapter 20, having parallel arms 22, 24 linked by a band 26, to enable the connector to be used with wiper arms of different sizes. The adapter, which is perferably of resilient plastics, may have flanges 34, 36 Fig. 4 to fit around the sides of a narrow wiper arm 30. The provision of a throat defined between adapter surfaces 28 provides a map fit of the adapter 20 around the pivot pin 8 of the connector.
Patent GB-1162360-A (GB)
Title: Improvements in or relating to the Manufacture of a Non-Woven Fabric
IPC: D04H11/04
Filed: 1967-08-29
Abstract: 1,162,360. Pile fabrics. W. R. GRACE & CO. 29 Aug., 1967 [28 Dec., 1966], No. 39515/67. Heading D1K. Particulate thermoplastic material 5 is spread on a conveyor 1, or on a rubber or fibreglass backing carried by the conveyor, and passes under a heater 4 before pile is impressed in it. Pile yarns or fabric 10 is forced into a slotted roller 7 by a blade 12 and pressed into the molten thermoplastic by the rotating roller. In an alternative, flock pile is embedded into the plastics. The fabric is passed over a cooling zone and may be embossed and/or printed by a roller 32. The method ensures that the backing is unorientated.
Patent GB-1484568-A (GB)
Title: Shuttering device
IPC: E04G11/34
Filed: 1974-08-12
Abstract: 1484568 Shuttering for concrete pack walls in mines CEMENTATION MINING Ltd 12 Aug 1974 [14 Aug 1973] 39524/73 Headings E1E E1F and E1S Shuttering for a concrete pack wall in a mine comprises a vertically telescopic concrete containing wall 3, 6 mounted on a mobile base 1, and hydraulic jacks 4 for extending and retracting the upper wall portion 6, which jacks 4 are connected between the base 1 and a roof-supporting member 10 at the top of the wall portion 6, the shuttering thus serving to support the mine roof whilst the concrete contained therein is setting, and means for advancing the shuttering. The shuttering extends around three sides of a rectangle, and defines a concrete-receiving space with the edge of the previously set portion of the pack, after it has been advanced. The base I includes runners 2, and is advanced by hydraulic rams 8. The lower and upper wall portions 3, 6 may be of steel plate, or the upper portion may be of strong belting.
Patent GB-960724-A (GB)
Title: Improvements in refuse collecting vehicles
Inventor: GIBSON GEORGE THOMAS
IPC: B65F3/08
Filed: 1961-11-06
Abstract: 960,724. Tipping dustbins into refuse vehicles. JOHN GIBSON & SON Ltd. Feb. 5, 1963 [Nov. 6, 1961; July 2, 1962], Nos. 39598/61 and 25200/62. Heading B8E. Bins are re-used and tipped into a vehicle by a cradle which supports a plurality of bins and which is raised in guides to discharge the bins into a rear opening normally sealed by a panel. An apron is provided to cover each bin on the cradle. The cradle 15 has rollers 16a running in guides 13, and is raised by a cable 24 operated by a winch 26. Further rollers mounted on the cradle 15 enter curved guides 13b when the rollers 16a enter the ends 13a of the guides 13 so that the bin is discharged into the vehicle opening normally sealed by a panel 27. The cradle has a platform 20, a vertical wall 21 and triangular side walls 22 and is provided with pairs of arms 30, 30a mounting a flexible rubber or like apron 32 to cover each bin 33 whatever its height. The arms 30, 30a are pivoted to brackets 29 and have pivotally attached thereto arms 34 provided with rollers 38 running in channels of beams 37 extending between members of the cradle. Springs 36 normally hold the arms 34 down so that the arms 30, 30a hold the apron 32 over the mouth of the bin but when the cradle is lowered from the dotted line position shown to its lowest position stops 35 contact the arms 34 so that the apron 32 is raised to allow removal and replacement of a bin. As the cradle is raised and tipped rollers 30b on the arms 30, 30a contact the plate 27 to open it and the vehicle opening is then sealed by contact of the platform 20 and side walls 21.
Patent GB-972628-A (GB)
Title: Filter devices for gases
IPC: F02M35/024
Filed: 1963-10-10
Abstract: 972,628. Gas filters. GENERAL MOTORS CORPORATION. Oct. 10, 1963 [Oct. 18, I962], No. 39962/63. Heading B1T. A gas filter assembly is formed of an annular filter element 10 of open-cell polyurethane foam clamped between housings 12, 14. Air flows inwards through pipe 19, into space 20, through 10 to the outlet 22. The element is supported on a perforated screen 30 to which it is secured by the annular bead 36.
Patent GB-941073-A (GB)
Title: Processes and apparatus for the impregnation of fibrous webs
Inventor: TOOTH ALAN JOHN
IPC: D04H1/655
Filed: 1960-11-21
Abstract: 941,073. Treating fibrous webs. PORTALS Ltd., and A. J. TOOTH. Feb. 9,1962 [Nov. 21, 1960], No. 39992/60. Heading D1L. Impregnating liquid (e.g. emulsions of polyvinylacetates or of polybutadiene styrene copolymers, on solutions of sodium carboxy methyl cellulose) is applied to a fibrous web 11 by firstly applying the liquid to a travelling web-supporting band 12 (e.g. of wire mesh) and then bringing the web into close contact with the band. In Fig. 1, the band 12, driven by roller 14 at a speed equal to or slightly in excess of the speed of the web 11, has the liquid applied thereto by a transfer roller 15 driven at a surface speed equal to that of belt 12 which it contacts or closely approximates (0 to 0.030 inches). The liquid is, in turn, applied to the transfer roller by means 16 which may, as shown in Fig. 2a take the form of an applicator roller 30 contacting the transfer roller and dipping into a bath 31 of the liquid (which may be heated electrically at 32 for ease of application). In another form, further rollers may be inserted between applicator roller 30 and transfer roller 15. In a further form, transfer roller 15 dips directly into the liquid bath and an air doctor is provided to remove excess liquid therefrom. In Figs. 1 & 2a smoothing rollers 17, 33 are provided and may be driven at a surface speed considerably greater than that of their associated roller while roller 33 may additionally be caused to oscillate parallel to the axis of roller 30. Adjustable doctors 34 limit the width of the liquid layer on roller 34 to be equal to the width of the web 11. Rollers 19 are spring urged towards belt 12 in an adjustable manner to press web 11 thereagainst. In Fig. 3 the supporting band 45 runs through the liquid in tank 48, the excess liquid being removed by an air doctor 48 (having adjustable slot plates 49) and by a pair of resiliently covered (e. g. rubber) rollers 50 pressed against the band in an adjustable manner. The band 12 or 45 may be of wire mesh, perforated stainless steel, perforated films of polyvinyl chloride or polyethylene or it may be of natural or synthetic fibres or paper in similar porous material coated with an inert, non-stick substance such polytetrafluorethylene or silicone compounds.
Patent GB-1448911-A (GB)
Title: Valve assembly for controlling vehicle transmissions
IPC: F16H63/30
Filed: 1974-09-13
Abstract: 1448911 Change-speed control HURTH VER4VALTUNGS GmbH 13 Sept 1974 [19 Sept 1973] 39998/74 Heading F2D A rotary distributor valve member 23 actuated by a lever 24 to direct pressure liquid selectively to ratio-establishing clutches in a vehicle gear-box, e.g. forward and reverse clutches, has disposed within it a pressure regulating valve spool 17, 18 with a projection extending axially from the distributor for actuation by a piston (not shown). Pressure fluid enters a housing 27 at 9 and passes through a filter 10 to a port 11a, through a surface channel covered by a lid (not shown) to a port 11c connected to the space between the spool lands 17, 18 and thence past a control edge 17a to ports leading to chambers 49, 50 on diametrically opposite sides of the valve member 23. When the member 23 is turned clockwise from the position shown in Fig. 3 a forward clutch is pressurized from the chamber 50, and a reverse clutch is exhausted through a chamber 51 and passage 52, these connections being reversed when the member 23 is turned the other way. Should the pressure delivered to either clutch exceed a predetermined amount a passage 21 interconnecting the chamber 49 and a chamber at the right-hand end of the regulating valve causes the latter to be moved against a loading spring 16 so that the control edge 17a exercises a throttling effect, the pressure in the clutch then falling due to leakage. The projection at the right-hand end of the regulating valve may be engaged by a piston (not shown) subject to the pressure in a hydraulic braking system of the vehicle to cause either clutch to be disengaged when the brakes are applied. A projection 45 locates the valve member 23 in the bore and allows it to be turned between positions determined by a detent 26. A pump (not shown) which feeds the connection 9 with pressure fluid also supplies, through a cooler, a hydrodynamic torque converter at the input to the gearbox.
Patent GB-949600-A (GB)
Title: Electrode
IPC: H01M4/36
Filed: 1961-11-09
Abstract: 949,600. Accumulators. VARTA A.G. Nov. 9, 1961 [Dec. 16, 1960], No. 40221/61. Heading H1B. The electroohemical mass of a lead accumulator contains at least one lead compound (e.g. lead sulphate) in an elongated or acicular form. When treated this material reacts with litharge which is also present and forms a matted composition which is stated to prevent cracking of the plate.
Patent GB-1513879-A (GB)
Title: Process for the production of high molecular weight unsaturated hydrocarbon polymers having an increased proportion of vinyl groups and/or substituted vinyl groups
IPC: C08F36/00
Filed: 1975-10-02
Abstract: 1513879 Cobalt-containing diene polymerization catalyst CHEMISCHE WERKE HULS AG 2 Oct 1975 [3 Oct 1974] 40291/75 Heading C3P Conjugated dienes are polymerized in the presence of a catalyst comprising (a) a cobalt compound, (b) an organoaluminium compound and (c) a phosphorus compound of the formula (RO)3P, where each R is an optionally halogenated and/or alkylated diaryl or condensed aryl group or a halogenated monocyclic aryl group, and optionally (d) an H-acid compound. The catalyst favours the production of diene units with side-chain unsaturation. The examples refer to the production of polybutadiene or polyisoprene using as (c) tris(2- or 1-naphtyl)- phosphite, tris(2 - chlorophenyl)phosphite, or tris(o - phenyl - phenyl)phosphite, and in most cases (d) H2O.
Patent GB-1398406-A (GB)
Title: Preparation of cyclic ketone
IPC: C07C49/395
Filed: 1972-08-31
Abstract: 1398406 Cyclopentanone derivative ROURE BERTRAND DUPONT SOC ANON 31 Aug 1972 [1 Sept 1971] 40419/72 Heading C2C 2 - n - Pentyl - 3 - (2 - oxopropyl) - 1 - cyclopentanone is prepared by hydrolysing and decarboxylating a compound of the formula where R is a hydrocarbyl group, under pressure with water in an initially substantially neutral medium. The starting material may be prepared by condensing 2-n-pentyl-cyclopent-2-en-1-one with a compound of the formula
Patent GB-1245571-A (GB)
Title: Improvements relating to rocket motor control systems
IPC: F02K9/82
Filed: 1966-09-09
Abstract: 1,245,571. Deflecting propulsion jets. BRITISH AIRCRAFT CORP. Ltd. 11 Dec., 1967 [9 Sept., 1966], No. 40442/66. Heading B7G. A rocket motor control system includes at least one pair of diametrically opposed fluid switches arranged around the periphery of the rocket motor exhaust nozzle, each switch comprising a main duct 14 extending from the combustion chamber 11 and through which passes a fraction of the main efflux, two branch ducts 19, 20 connected to the main duct 14, and means for repeatedly switching fluid flowing in the main duct 14 between the two branch duets 19, 20, the branch duct 20 discharging into the exhaust nozzle 12 to deflect the efflux and the branch duct 19 discharging into an annular manifold 21 having vents to the atmosphere so spaced and of such a size that a pressure substantially exceeding atmospheric is maintained in the branch duct 19 while fluid is flowing through the branch duct 20. With a lower pressure in the branch duct 19, there would be a risk of the fluid in the branch duct 20 being entrained into the branch duct 19 resulting in a breakdown in the switching action. A pair of horizontally opposed fluid switches may be used for controlling the yaw of the rocket and a pair of vertically opposed fluid switches for controlling its pitch. The vents in the manifold 21 comprise spill holes 33 positioned midway between adjacent switches. In operation the fluid is switched from one branch duct to the other by fluid impulses injected into the fluid stream alternately through passages 22, 23. These fluid impulses are derived from a fluid amplifying device in which a nitrogen supply provides a power stream of gas which is accelerated through a throat portion into one of two branch ducts 25, 26. The switching between the two branch ducts 25, 26 is obtained by injecting impulses of nitrogen through jets arranged on opposite sides of the throat portion. Normally the switching of the fluid streams between the two branch ducts 19, 20 is made so rapid that the flight path of the missile is a straight line. Should this flight path require correction the period of discharge into the nozzle 12 is then extended at the expense of the period of exhaustion to the atmosphere although the total period of the alternations remains unchanged. This may be effected by varying the markspace ratio of the fluid impulses injected through the passages 22, 23.
Patent GB-1429015-A (GB)
Title: Dropped centre axle for vehicles
IPC: B60B35/14
Filed: 1973-08-29
Abstract: 1429015 Motor vehicle axles HAMWORTHY ENG Ltd 16 May 1974 [29 Aug 1973] 40625/73 Headings B7D and B7H The casing 1 of a dropped centre driving axle for a double deck bus has a removable cover 8 located outboard of and axially aligned with each dropped quarter shaft 7, and the flange 10 of the wheel hub 2 has a cut-out 4 so that after removal of the brake drum 11 and lower brake shoe 13 the shaft 7 can be pulled from the the housing by an extraction tool screwed into a bore 15. The shaft 7 drives the hub 2 through gears 4, 5, an outer quarter shaft 3 and epicyclic gears located inside the hub.
Patent GB-1002494-A (GB)
Title: Improvements in or relating to copper drossing
Inventor: DAVEY THOMAS RONALD ALBERT
IPC: C22B13/06
Filed: 1962-10-26
Abstract: <PICT:1002494/C6-C7/1> The copper-drossing of lead bullion is effected by feeding the bullion into a vessel with an upper portion maintained at a high enough temperature to prevent substantial formation of accretions on its walls and a lower portion which is drastically cooled to form an accretion containing particles of impurities such as copper, copper sulphide, copper arsenide in a matrix of solid lead, drawing off relatively cold, drossed lead from the bottom of the vessel, periodically interrupting the cooling and melting the accretions so that particles of impurity float to the top of the lead and dissolve in a matte layer and tapping off the matte layer at intervals.  As shown in the drawing impure lead bullion is introduced into the upper insulated part of the vessel on a spiral ramp 3 to form a pool of molten lead from which melt lead is drawn off through outlet 9 at the bottom of the vessel.  The lower uninsulated conical part of the vessel is cooled by water sprays 8a. On shutting off the water sprays the accretions melt and impurities rise to dissolve in the matte layer on the surface of the melt and this matte layer is periodically tapped from outlet 4.  A tangential burner 5 is provided for melting any accretions which may form in the upper part of the vessel.
Patent GB-1122598-A (GB)
Title: Barium and strontium hydroxide monohydrates and their production
IPC: C01F11/02
Filed: 1965-09-27
Abstract: A monohydrate of barium or strontium hydroxide is made by evaporating an unsaturated solution of the hydroxide until there is obtained a constant boiling point slurry of the monohydrate crystals suspended in a saturated solution of hydroxide mother liquor and recovering the crystals.  The initial solution may contain less than 58.8% wt. of BaO (i.e. it has a hydrate number greater than 5) and boiling may be continued until the saturated Ba(OH)2 liquor has an equivalent hydrate number of 4.5 to 5.0.  Boiling may be discontinued when the solids content of the Ba(OH)2 slurry is 15-50% wt.  Alternatively, water may be flashed out of the saturated Ba(OH)2 solution, the super-saturated solution then being fed to a crystallizing chamber containing seed crystals of Ba(OH)2H2O, where further crystals are grown in situ.  The crystals may be removed by a heated centrifuge or filter and then cooled in an inert atmosphere.  The mother liquor may be recycled if desired.  The evaporation may be performed under increased pressure, e.g. 1.68 or 2.5 atm., until a saturated solution of equivalent hydrate number of 3.8 or 2 respectively is obtained, the pressure is then released, e.g. by a spray nozzle, to form Ba(OH)2.H2O. The evaporation may be also performed under reduced pressure. The invention can be used to prepare mixtures of Ba and Sr hydroxide monohydrates or as a means of separating them from each other.  The Ba(OH)2.H2O. produced may have a monoclinic biaxial positive crystalline structure and a bulk density of at least 90 lbs./cub. ft. At least 90% wt. of the particles can be -20 to +100 Tyler mesh with less than 1.5% wt. being -200 mesh. The refractive indices of the monohydrate may be 1.594 along the a -axis, 1.620 along the b -axis, and 1.648 along the g -axis. The crystals may have a diameter of 0.2 to 1.5 mm.
Patent GB-1154650-A (GB)
Title: Heavy Duty Cable with Metal Sheath.
IPC: H01B7/32
Filed: 1967-09-07
Abstract: 1,154,650. Cables. KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE A.G. 7 Sept., 1967 [8 Sept., 1966], No. 40965/67. Heading H1A. At least part of the paper insulation of an electric cable, having a metal sheath as neutral conductor, is impregnated with a salt which is dissociated in solution. The salt may be potassium alum. If, however, the metal sheath is of aluminium and the salt is, for example, ammonium chloride, only the inner layers of paper insulation are impregnated to avoid corrosion. Alternatively, the outermost layer may be impregnated with a salt which is inert to the material of the sheath.
Patent GB-912616-A (GB)
Title: Improvements in or relating to circuitarrangementsfor supplying a voltage of constant value to a load
IPC: G05F1/613
Filed: 1958-12-19
Abstract: 912,616. Automatic voltage-control systems. SIEMENS SCHUCKERTWERKE A.G. Dec. 19, 1958 [Dec. 20, 1957], No. 41124/58. Class 38 (4). In a D.C. voltage stabilizer of the shunt transistor type, the transistor is either directly controlled by a Zener diode, or forms part of a bi-stable circuit which is switched by an auxiliary transistor controlled by a Zener diode. In one embodiment, Fig. 1, a transistor 7 is connected in series with a resistor 8 across the output of a bridge rectifier 4 and a resistor 3 is included in the A.C. input to the rectifier. A Zener diode 9 is connected between base and the negative line so that any increase in output voltage is compensated by an increase in the current passed by transistor 7. In a second embodiment, Fig. 2, the shunt transistor 11 forms a bi-stable pair with a second transistor 13, and is rendered conducting or non-conducting according to whether or not the portion of the output voltage tapped off a potential divider 21, 22 exceeds the reference voltage of a Zener diode 20 which controls a third transistor 17. The diode 20 is maintained conductive by a higher voltage supply from the input terminal via a resistor 23. In a third embodiment, Fig. 3 (not shown), the Zener diode controlled transistor is of NPN type and is coupled to the shunt transistor by an amplifier; overall positive feedback providing the switching action.
Patent GB-1428049-A (GB)
Title: Automatic steering control for vessels
IPC: B63H25/04
Filed: 1973-09-01
Abstract: 1428049 Automatic steering N O CLARK 29 Aug 1974 [1 Sept 1973] 41251/73 Heading B7V A boat is kept on a constant heading by detecting the angle B between a reference direction and a towed line 5 and operating the steering gear to reduce the angle to zero. The reference direction may be that of another line 2 towing an object 3 by which the line 5 is towed. Alternatively the line 5 may be attached directly to the boat, the reference direction then being the boat's longitudinal axis or a line at a known leeway angle thereto. The towing line 5 is fixed to a support 12 pivoted about a vertical pin 13 in a tube 10 on the towed object 3 (which consists of an upright wooden plate 7 with a weight 8). Magnets 15 on the support 12 operate proximity switches if the support 12 moves from the centre of the tube. The switches are connected by wires 2 to the boat and lead to the steering gear. Alternatively an analog signal representative of the angle may be generated, using electrical, hydraulic or pneumatic equipment.