baber/WOPTO huggingface dataset:
Patent GB-1088490-A (GB)
Title: Electronic device
IPC: F02P7/03
Filed: 1965-11-19
Abstract: 1,088,490. Machines with permanent magnets; core construction. MOTOROLA Inc. Nov. 19, 1965 [Dec. 16, 1964], No. 49307/65. Heading H2A. [Also in Division F1] A spark ignition device for I.C. engines comprising a wedge-shaped magnetic pole plate coupled to the engine crank-shaft for rotation therewith and one or more pick-up coils for generating a pulse when the magnetic pole plate passes the coil or coils with a diminishing gap, in order to produce a firing spark at a point of time determined by the angular velocity of the crank-shaft, is characterized in that the generally wedge-shaped portion of the magnetic pole plate is followed by a stepped portion to diminish the gap between the associated pick-up coil and the magnetic pole plate at a rate substantially greater than that provided by the wedge-shaped portion. As shown, the flywheel 47 of a 4-cylinder, 4-stroke I.C. engine is provided with a pair of shaped flux-varying elements 45, 46, which, on rotation of the flywheel, induce voltages in an inductance winding 52 surrounding a polepiece 53. The rate of decrease of distance between element 45 and tip 53 rises suddenly at the position where the step portion joins the sloping portion of the element, and this sudden rise produces a corresponding peak near the end of the curve representing voltage versus angle #. This peak lies above the critical (spark-initiating) voltage, and as the speed of flywheel 47 increases, the peak voltage is greater, and the curve crosses the critical-voltage level sooner. Thus, spark advance is provided for. The winding 52 is connected to a level detector consisting of a diode connected across the winding and a Zener diode connected in series with the winding. At or above the critical voltage an output is produced from the level detector; this output energizes a pulse generator which feeds an electronic steering circuit. The latter consists of a pair of transistors interconnected with appropriate resistors, diodes and capacitors to form a flip-flop. This flip-flop steers the pulses alternately to two semi-conductor controlled rectifiers, each controlling the D.C. energization of two spark-gaps located in two of the engine cylinders; only one of these cylinders, in each case, is ready to be fired: the other is on exhaust stroke. To ensure synchronization of pulses with cylinders at the outset, a magnet 71 on the underside of the flywheel operates a reed switch 72 of a synchronizer (which includes a switch-holding coil); this synchronizer controls the supply of power to the pulse generator and the electronic steering circuit. In a modified circuit, two diametricallyopposite induction units are associated with one flux-varying element on the flywheel, and each unit is associated with its own level detector and, optionally, pulse generator; (the electronic steering circuit is here unnecessary). In this modification there may, as an alternative, be the flux-varying elements as before, but each is arranged to act on one only of the induction units. Reference has been directed by the Comptroller to Specification 926,523.
Patent GB-1172684-A (GB)
Title: Improvements in or relating to Electric Storage Heaters.
Inventor: UNWIN MICHAEL JOHN MAX
IPC: F24H7/02
Filed: 1966-11-03
Abstract: 1,172,684. Thermal storage heaters. UNWIN, DYER & UNWIN Ltd. 26 Oct., 1967 [3 Nov., 1966], No. 49323/66. Heading F4U. Expanded fired clay is used as the thermal storage medium in unit storage heaters or in storage heating systems incorporated in the walls or floors of a building. The medium may be particulate, with a surface porosity lower than its internal porosity. The particulate material may be mixed with cement to form storage blocks. Electric heating elements surrounded by ceramic sleeves are employed. Preferred densities and particle sizes for the storage medium are disclosed.
Patent GB-1236064-A (GB)
Title: Improvements in or relating to fire extinguishing compositions
Inventor: WHELDON ALBERT GORDON
IPC: A62D1/00
Filed: 1968-10-19
Abstract: 1,236,064. Fire extinguishing slurries. DISTILLERS CO. (CARBON DIOXIDE) Ltd. 27 Oct., 1969 [19 Oct., 1968], No. 49685/68. Heading ASA. A slurry of solid CO 2  in a liquid fireextinguishing agent for fire-fighting purposes is produced by mixing liquid Co 2  and the liquid extinguishant under pressure such that a solution of one in the other is formed, and releasing the solution at a lower pressure when the slurry is required. Bromochlorodifluoromethane (BCF) is preferred. The two liquids are pumped into a container maintained at 30‹ to -80‹C., e.g. in a ratio 3:1 CO 2 :BCF by volume. The solution may be released via a cyclone separator.
Patent GB-1016339-A (GB)
Title: Improvements relating to apparatus for automatically measuring a predetermined length from a greater length of material
IPC: B65H61/00
Filed: 1963-12-17
Abstract: 1,016,339. Measuring continuous lengths of material. J. HANDA AND GOSHI KAISHA TAKAHATA KOGYOSHO. Dec. 17, 1963, No. 49807/63. Heading G1M. In apparatus for measuring automatically a predetermined length of material there is provided means for advancing the material, a wheel adapted to engage the material and to rotate with the advance of the material, a rotatable counting device indicating by a series of dial members the number of revolutions of the wheel, an adjustable indexing member having dial members coaxial with the corresponding dial members of the counting device, electrical switching means movable from an open to a closed position in response to comparable dial members of the counting device and the indexing member and means responsive to said coincidence for stopping the material advance. In one embodiment, see Figs. 1, 2 material is wound round the wheel 1 and index members 18, 19 set to a predetermined position on scales 14, 15 by knobs 22, 23 through seams 26, 24, 20, 38 and 23, 27, 21, 37 respectively. In this position switches S 1 , S 2  are open, S 5  is closed and subsequently S 3  and S 4  are closed. Rotation of wheel 1 causes movement of needle 6 through gears 4, 5 and 7 and consequently of needle 10 through reduction gears 8, 9, 11. When needles 10, 6 have moved to the positions indicated by index members 18, 19, switches S 1  and S 2  are closed simultaneously due to the positions of brushes 38, 39 on shafts 7, 11 of the needles 6, 10 and a relay R activated to stop the motor H. To restart the cycle, knob 47 is depressed against spring 49 to engage gear 50 with gears 42, 43 mounted on shafts 7, 11, thus rotating the gears 42, 43 and subsequently needles 6, 10 to their starting positions. Simultaneously insulating rings 32, 33 are separated from brush members 38, 39 breaking the relay R and the motor is re-started. In a modification (Figs. 5-7, not shown) the insulator rings 32, 33 are substituted by rings 52, 53 formed with arcuate insulated sectors 54, 55. The zero-returning means may comprise (as shown in Fig. 16) a spring-loaded shaft 146 provided with worms 150, 157 engageable with gears 42, 43, rotation of the shaft moving needles 6, 10 to their zero-positions. In a further embodiment, (Figs, 14, 15 not shown) a one-way clutch device is employed. Alternatively, as shown in Fig. 26, when the switches S 1  and S 2  are closed motor 412 is actuated causing rotation of shaft 146 through gear 415 and subsequent rotation of gears 42, 43 though worms 150, 151 switches S 1  and S 2  being opened and needles 6, 10 returned to zero-position.
Patent GB-1324923-A (GB)
Title: Process for making permanent magnets
IPC: C22C19/07
Filed: 1971-10-28
Abstract: 1324923 Sintered permanent magnets BROWN BOVERI & CO Ltd 28 Oct 1971 [13 Nov 1970] 50100/71 Heading C7D Rare earth metal hydride power e.g. 5-20 wt. per cent is added to a powdered intermetallic compound consisting of at least one 3a transistor element e.g. Fe, Co, Ni and at least one rare earth metal and the mixture is sintered to form a permanent magnet. The preferred intermetallic compound is R 2 CO 1   7  or RCO 5  where R is Y, La, Ce, Pr, Nd or Sm and the mixture is preferably milled to 5 micron size prior to hydrostatically pressing in a magnetic field and then vacuum degassing at 400-500‹ C and sintering in inert gas at 900-1100‹C. The intermetallic compound and hydride may contain the same or different rare earth metals.
Patent GB-1103377-A (GB)
Title: Improvements in or relating to electromagnets
IPC: H01F7/20
Filed: 1965-11-25
Abstract: 1,103,377. Electromagnet. P. D. COOK. 19 July, 1966 [25 Nov., 1965], No. 50221/65. Heading HIP. A yoke 1 of magnetic material has mounted therein two polepiece supports 2 and 3, each of which carries a polepiece 6 surrounded by coils 4 and 5 respectively. The gap 7 between the polepieces may be adjusted, using the hand wheels 8. The supports have a pin-and-slot arrangement to prevent them rotating. An adjustable hollow rose shim 15 is screwed on to the body portion 11 of the polepieoe, the polepiece screwing into the support. A hole extends through both supports and polepieoes for viewing or illuminating a specimen held between the poles. Alternatively a polepiece having a blind threaded hole may be attached to one of the supports using a bolt passing through the support to engage the blind hole.
Patent GB-1140613-A (GB)
Title: Improvements in or relating to sodium vapour discharge lamps
IPC: H01J61/35
Filed: 1966-11-10
Abstract: 1,140,613. Metal-vapour lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 10 Nov., 1966 [13 Nov., 1965], No. 50454/66. Heading H1D. An outer transparent envelope enclosing the discharge tube of a sodium-vapour lamp has a preferably internal coating layer of doped In 2 O 3  containing from 1À5 to 3À7 atom per cent of dopant relative to the quantity of In, which layer is permeable to sodium light but reflects IR radiation. The dopant may be Sn or F in amounts of 2À3 At. per cent of Sn or 2 At. per cent of F relative to the quantity of In. The thickness of the layer is between 0À2 and 0À5 Ám., preferred values being 0À31 and 0À46 Ám. at which permeability maxima to sodium light occur. The outer envelope is tubular and evacuated and has a terminal at each end. The discharge tube filling consists of sodium plus neon plus a slight addition of argon.
Patent GB-1248438-A (GB)
Title: Method for making ferritic stainless steel sheet having excellent workability
IPC: C22C38/18
Filed: 1968-10-25
Abstract: 1,248,438. Heat-treating stainless steel. NIPPON STEEL CORP. Oct. 25, 1968 [Oct. 27, 1967], No.50676/68. Heading C7A. A hot-rolled ferritic stainless steel sheet is heat-treated at above 900‹C. and quenched to form a martensitic structure, which is then tempered below 760‹C. under such conditions that the martensite is not decomposed. The steel is then conventionally cold-rolled and annealed. The process is particularly applied to a steel containing in percentage by weight:- C less than 0À15 Cr 13 - 25 Si less than 1 Mn less than 1 Fe balance. Preferably the initial heating temperature does not exceed 1100 degrees, while the steel may be finally annealed below 860‹C.
Patent GB-1319436-A (GB)
Title: Simulator apparatus for electric pulse radiation and light propagation of nuclear weapon explosions
IPC: G08B17/12
Filed: 1971-11-04
Abstract: 1319436 Simulator apparatus IMPULSPHYSIK GmbH 4 Nov 1971 [24 Nov 1970] 51244/71 Heading F3C [Also in Division H2] A simulator apparatus for electric pulse radiation and light propagation of nuclear weapon explosions has an aerial circuit comprising an inductance 12, a storage capacitor 13 in parallel with a spark gap 15, the latter being connected through a switch 16 to a high voltage source 63, a first flash apparatus 3 which is fed by the capacitor discharge, and a first electronic delay element 2 which is triggered by the operation of the spark gap 15 for the delayed triggering of the flash apparatus 3. A second flash apparatus 5 is provided and is fed by capacitor discharge. The apparatus also has a second delay element 4 which is triggered by the operation of the first flash apparatus 3 for the delayed triggering of the second flash apparatus 5. The electromagnetic pulse is supplied from a rod aerial 11, connected to the inductance 12, and capacitor 13, the whole being connected to a case 7 which receives the simulator apparatus. The rod aerial 11 radiates a voltage vector when the switch 16 is olosed and, when the spark gap 15 becomes operative, the delay element 2, connected in series therewith, is started so that, after the delay period has elapsed a firing pulse is supplied to a firing electrode 31 of a serially connected flash lamp 32. A storage capacitor 33, having previously been charged from a high voltage apparatus 64, is connected in parallel to the lamp 32 and is discharged. A radiation surge pulse passes through condenser lens 34, the latter being located in front of a window 9 of the case 7. A sensor, (not shown) receiving the simulated initial flash of a nuclear weapon explosion is positioned in front of the case 7. In order to test eye protection shutters against the initial flashes of nuclear weapon explosions the further delay element 4 is coupled to the flash lamp circuit and starts when the lamp 32 becomes operative to supply a firing pulse to a firing electrode 51 of a flash lamp 52 of the second flash apparatus 5 after a pre-defined delay period has elapsed. The lamp 52 is connected in parallel to a capacitor 53 which has been charged by a high voltage apparatus 65, and is provided with a condenser lens 54 which is located in from of a window 10 in the case 7. In use the closing of the switch 16 causes a first light flash to be passed through the window 9 but a second exceptionally bright light will be prevented from being perceived in the window 10 if the protective shutters (not shown) are functioning correctly.
Patent GB-1123342-A (GB)
Title: Improvements in or relating to stabilizing apparatus for ships
IPC: G05D1/08
Filed: 1965-01-30
Abstract: 1,123,342. Stabilizing ships. H. D. FANSHAWE. 30 Jan., 1965, No. 51268/63. Heading B7M. A ship is stabilized by continuously transferring back and forth between two spaced ports of the ship two separate constant quantities of liquid, the transference of the two quantities of liquid taking place in a phase relationship determined by the degree of stabilization required. The stabilizing apparatus comprises two units (Fig. 5) disposed side-by-side and each consisting of two spaced main tanks 1A, 1B for stabilizing liquid 16, a conduit 2 interconnecting the tanks and submerged when the unit contains the requisite quantity of liquid, a subsidiary tank 3A, 3B connected to the top of each main tank via a valve 4A, 4B, a vacuum pump 6 for exhausting the space above, to change the level of, liquid in one main tank with respect to the level of the liquid in the other, and roll sensing means 5 operable to operate the valves 4A, 4B of the two units in a phase relationship determined by the roll sensing means, corresponding tanks of the two units having capacities and space relationships such that the two units are capable of providing similar stabilizing effects. In Fig. 5 the subsidiary tanks 3A, 3B are open to atmosphere; in Fig. 4 (which shows one unit only) they are closed and contain gas, means for creating and controlling a gas pressure difference between them comprising a cylinder 11 with opposite ends connected to respective tanks 3A, 3B, and a piston 12 movable in the cylinder by power means 13 operated by a servodevice 15 under the control of a liquid-level sensing device 14 in each subsidiary tank.
Patent GB-1448229-A (GB)
Title: Sewing machine
IPC: D05B19/00
Filed: 1973-11-07
Abstract: 1448229 Sewing machines SINGER CO 7 Nov 1973 [29 Nov 1972] 51654/73 Heading D1G Stitch-forming instrumentalities of a zig-zag sewing machine are controlled by pattern means in the form of a removable interchangeable cassette with means to adjust a part of the machine which remains fixed and a part which is movable during stitching of a pattern. As shown the cassette includes a pair of drivable cam discs 118, 119 which engage followers 96 and 84 to control the feed dogs and needle jogging of the machine and two control surfaces 123 and 124 engageable by fingers 73 and 67 to adjust the height and whether the mean needle position is to the left or right or at the central position. The cams are driven by rotation of an axially movable splined shaft 145 of the machine. The splined shaft 145 is lowered manually by depressing a push button 152 or automatically on insertion of a cassette when an arm 172 is pivoted by the front of the cassette against the base of the holding means 148 of the shaft. The shaft is released when the arm 172 enters a recess 190 at the side of the cassette body. The arm 172 also lowers a pin 174 against a lever 175 to throw-out the followers as the cassette is being inserted.
Patent GB-1448593-A (GB)
Title: Manufacture of magnetic discs with thin magnetic coatings
IPC: G11B5/84
Filed: 1973-11-09
Abstract: 1448593 Magnetic coated recording discs BASF AG 9 Nov 1973 [10 Nov 1972] 52063/73 Heading B2E Magnetic recording discs are produced by coating a non-magnetic metal base disc with a dispersion of finely divided magnetic pigment and finely divided non-magnetic pigment having a Moh's hardness of at least 6 in a solution in an organic solvent of a binder, drying the coating, and optionally curing, and subsequently grinding and polishing, the non- magnetic metal base disc prior to application of the magnetic coating being provided with a hard, non-magnetic intermediate layer which can be ground and polished, by applying a dispersion of a finely divided non-magnetic pigment having a Mohs hardness of at least 6 in a curable binder which provides firm cohesion of the non-magnetic pigment particles and good adhesion of the intermediate layer to the non- magnetic metal base discs. Suitable non-magnetic pigments are aluminium oxide, chromium oxide, quartz, cerium dioxide, alpha-iron oxide and titanium dioxide. The curable binder may be polyurethanes, or mixtures thereof with polycarbonates, curable epoxy resins and curable amino, melamine or phenolic resins, curable epoxy resins and their mixtures with polyaminoamides, or with curable melamine-formaldehyde precondensates or phenol-formaldehyde precondensates or mixtures of curable N-methylol acrylamide or N-methylolmethacrylamide copolymers with curable soluble amino or phenolic precondensates. A preferred binder is a mixture of curable epoxy resins or polyepoxide compounds as curable precondensates of phenols or alkylphenols and formaldehyde. The weight ratio of pigment to binder may be 0.5-1 to 5-1. Preferably the intermediate layer is ground and polished prior to application of the magnetic coating. Suitable non- magnetic pigments for the magnetic coating are silicon carbide, boron carbide, aluminium oxide or silicon dioxide.
Patent GB-1528190-A (GB)
Title: Segmented bipolar electrode assembly and its use in electrolytic filter press cells
IPC: C25B11/02
Filed: 1975-12-22
Abstract: 1528190 Bi-polar electrodes BASF WYANDOTTE CORP 22 Dec 1975 [23 Dec 1974] 52303/75 Heading C7B A bi-polar electrode for a filter press cell has the anodic 14 and cathodic 12 surfaces formed as segments 22, 24 which are mechanically and electrically inter-connected across a non-conducting barrier 16 such that each segment of each electrode is connected to at least two segments of the other electrode. Rectangular segments with stiffening flanges 26 are preferred. The construction simplifies assembly and reduces current differentials during use. Conventional connection bosses (not shown) are used at points 24 in the exploded view of Fig. 3.
Patent GB-1531629-A (GB)
Title: Marine vessels
IPC: B63B5/14
Filed: 1976-12-15
Abstract: 1531629 Marine vessels A A YEE 15 Dec 1976 52390/76 Heading B7A The hull of a vessel such as a barge, made of a cementitious material, e.g. reinforced concrete, has a generally cellular structure comprising annular (preferably cylindrical, as shown) walls 46 extending vertically from the hull bottom 22 at the bow and stern and also beneath and between holds 40 and also has a top deck 24 and at least one intermediate deck 36, the annular walls being interconnected by, e.g. webs 4 and partition walls 52. Partitionwalls 44 and side walls 26 may be buttressed and interconnected by semi-cylindrical walls 60, 62' and partition walls 64. Hatch coamings 42 may be reinforced with "gussets" 50, (72), Fig. I (not shown). Ventilation and access openings and holes 66, 68, 70 may be formed in the walls 60, 62, 64. Another embodiment, Figs. 5-7 (not shown), differs mainly in that the vessel is adapted for liquefied gas storage and has internal walls buttressed by semi-cylindrical walls. In a further embodiment, Figs. 8-11 (not shown), the vessel has a single hold and the partition walls 44 are omitted.
Patent GB-1375089-A (GB)
Title: Fryers
IPC: A47J37/12
Filed: 1972-11-14
Abstract: 1375089 Apparatus for frying F WENGER 14 Nov 1972 [15 Nov 1971] 52474/72 Heading A4D A deep-fat fryer comprises a pan which is of elongate generally rectangular shape in any horizontal cross-section over substantially the whole of its depth and which has one of its narrower side walls stepped to define a shelf 6 extending over approximately one third of the length of the pan, a heating element 9 disposed at a distance below the free edge of the shelf approximately equal to the distance of the free edge of the shelf from the top of the pan, and a removable cooking basket 7 having a rectangular shape in any horizontal cross-section below the free edge of the shelf which substantially conforms to the horizontal cross-sectional shape of the pan at the same level. As shown, the pan comprises upper, intermediate, and lower pan portions 5, 3 and 4. In use, the basket may be grasped by a handle 8 and manually shaken while resting the basket on a transverse bar 11. A lever 13 actuates an aperture 14 for emptying the pan. A receptacle 15 is provided beneath the pan. The heating element 9 is connected to a connection box 10, and a control panel 16 having a thermo - stat, automatic time switch and indicator lights is provided.
Patent GB-1485498-A (GB)
Title: Butterfly valves for pipes
IPC: F16K1/22
Filed: 1974-12-05
Abstract: 1485498 Valves; pipe couplings APPLICATIONS MECANIQUES ET ROBINETTERIE INDUSTRIELLE 5 Dec 1974 [11 Dec 1973] 52588/74 Headings F2V and F2G A butterfly valve for plug-in connection to a plastics domestic water supply pipe has its cast metal casing 1 embedded in an elastomeric material, holes 2 being provided through the casting. The elastomeric material may be applied by moulding. The butterfly is either of coated metal or reinforced plastics. Annular lips 16, 17 of asymmetric cross-section prevent leakage from the valve and provide a seal against entry into the valve of external liquid respectively. Alternatively they may be provided on the external surface if the valve provides a male connection to the pipe. Fig. 3 shows how the valve may be connected to a pipe 21 by means of a sleeve 22, a spacing member 23 and a sliding sleeve 24, all made of plastics material. The sleeve 24 and sleeve 22 are locked together by pins 25 which engage in lugs 26, 27 in the sleeves 22 and 24 respectively. To remove the valve the pins are withdrawn, the sleeve 24 slid to the right and the spacing member 23 withdrawn.