baber/WOPTO huggingface dataset:
Patent GB-1229256-A (GB)
IPC: H02M3/156
Filed: 1968-11-15
Abstract: 1,229,256. Automatic control of current and voltage. RCA CORPORATION. Nov. 15, 1968. [Nov. 28, 1967], No.54229/68. Heading G3R. The voltage and current supplied to a mercury arc lamp 32 from a rectifier 12 is regulated by the control circuit shown, in which a series transistor 24 is switched on or off according to the output of a differential amplifier 61 comprising a transistor 54, to whose base is applied a signal from a reference voltage circuit 46, 50, 52, and a transister 56 to whose base is applied a composite signal from a current sensing resistor 22 and a capacitor 74, the latter member providing a measure of the voltage applied to the lamp by way of a saturable transformer 28 whose primary winding 26 is series-connected between the transistor 24 and the lamp 32. The regulating circuit shown functions as a ballast during the warm-up period of the lamp, so that excess current is prevented and the voltage and current of the lamp arrive at their stabilized operating point in the usual way, Fig. 2 (not shown). Transistors 76, 78 form a current amplifier to switch the transistor 24 on or off according to the control voltage applied to the base of transistor 56, the resistors 60, 81 respectively acting as threshold devices for the transistors 76, 78. The secondary windings 68, 84 of the transformer 28 are arranged so that with current increasing in the primary winding 26 no charge is stored on the capacitor 74 by the winding 68 and turn-on drive current is applied to the transistor 24 from the winding 84 by way of members 82, 85, 86. With current decreasing in the winding 26, the capacitor 74 is charged and the transistor 24 is turned off, the diode 86 being of the slow acting capacitive type to cause rapid turn-off of this transistor. Variations of input voltage at supply terminals 10 are compensated by the circuit comprising members 48, 64, 66.
Patent GB-1232727-A (GB)
IPC: H01L21/225
Filed: 1969-11-26
Abstract: 1,232,727. Semi-conductor device. SIEMENS A.G. 26 Nov., 1969 [27 Nov., 1968], No. 57766/69. Heading H1K. A p-type zone of varied depth in an n-type zone of a silicon crystal is made by diffusing boron into the n-type zone and thereby forming a layer of boron oxide glass on a surface of the crystal, heating the crystal in a moist atmosphere, removing areas of the boron oxide glass photolithographically using a photovarnish mask and heating the crystal to 900‹ to 1300‹ C. whereby the portions of the p-type zone beneath the residual parts of the glass are diffused further into the crystal. A p-type silicon body 1 has an epitaxial n-type layer 2 grown thereon and a boron-oxide glass layer (3, Fig. 2, not shown) is grown thereon by a transport reaction with B 2 O 3  as a source in a stream of Ar or N 2  or with B 2 H 6 . A p-type zone (4) is formed by diffusion of boron into the epitaxial layer 2. The body is heated in a moist atmosphere to make the glass more readily etchable, a photoresist mask applied and the exposed glass portions etched away 15 using HF+NH 4 F. The body is heated again to diffuse boron from the remaining glass portions 13 further into the n-type layer 12. Optionally a further oxide layer may be formed over the boron oxide layer prior to heating in a moist atmosphere by pyrolysis of tetraethoxysilane. The device formed is a junction-gate FET and may comprise one of many in an integrated circuit.
Patent GB-1232959-A (GB)
IPC: G21D5/08
Filed: 1970-04-27
Abstract: 1,232,959. Nuclear power plant. SULZER BROS., Ltd. 27 April, 1970 [13 May, 1969], No. 20040/70. Heading G6C. In a nuclear power plant, a gas turbine is operated by carbon dioxide gas heated, in a heat exchanger, by the reactor helium gas coolant. The heat exchanger 3, in the pressure vessel 1 is heated by the circulation of helium by the fan 4 through the core 2. Carbon dioxide from 3 flows through the turbine 10 and is returned to 3 by the compressor 13 driven by 10. A recuperator 11 and a cooler 12 are included in the carbon dioxide circuit which may operate either partially or wholly above the saturation condition.
Patent GB-1250849-A (GB)
IPC: B22C1/02
Filed: 1969-03-07
Abstract: 1,250,849. Foundry mould composition. SIVYER STEEL CASTING CO. 7 March, 1969, No. 12198/69. Heading C3N. A material for producing shell moulds and shell cores comprises silica sand, a thermosetting resin binder and a mineral additive chosen from kaolinite, e.g. hydrated kaolin clay, dickite, talc, brucite, boehmite and diaspore, the material being without or substantially without free water and the weight of the additive being “-3% by weight of the silica sand. Substantially without free water means that there is no water present in the mixture other than that which is chemically combined with the clay or absorbed from the atmosphere by one of the other ingredients. The thermosetting resin employed is customarily a phenolic resins.
Patent GB-1251407-A (GB)
IPC: A63F1/00
Filed: 1969-10-15
Abstract: 1,251,407. Card games. PHILOGRAPH PUBLICATIONS Ltd. 14 Oct., 1970 [15 Oct., 1969], No. 50580/69. Heading A6H. Apparatus for playing a game comprises a set of rectangular or hexagonal cords C all identically marked with two or three uniformly arranged intersecting lines R, B each line being distinguished from the other lines by being of a different colour or pattern, the aim of the game being to form a row of a predetermined number of cards presenting a straight line of one colour.
Patent GB-1251659-A (GB)
IPC: F16L21/025
Filed: 1968-10-17
Abstract: 1,251,659. Pipe joints; junction pieces. G. W. GIBLING. 25 Sept., 1969 [17 Oct., 1968], No. 49308/68. Heading F2G. A two-piece pipe coupling, e.g. for connection between a soil pipe and a W.C. outlet pipe, comprises relatively rigid tapered pipe 30 inserted in an annular sleeve between an inner wall 24 and an outer wall 25 of a flexible sleeve 20. The outer wall 25 of the flexible sleeve 20 has a series of circumferential ribs 28 to engage the soil pipe. For outlet pipes of smaller diameter, the flexible sleeve 20 may be provided with a series of axially spaced radially inwardly projecting washers (32), Fig. 6, (not shown), which grip the outside of the outlet pipe, or the flexible sleeve may be provided with a coaxial inner sleeve (22B), Fig. 10, (not shown). The rigid pipe may be of copper or rigid polyvinylchloride and the flexible material may be plasticized polyvinyl chloride or rubber.
Patent GB-1253088-A (GB)
IPC: A63H18/02
Filed: 1969-01-16
Abstract: 1,253,088. Curved and banked track section. MATTEL Inc. 16 Jan., 1969 [19 Dec., 1968], No. 27941/70. Divided out of 1,253,084. Heading A6S. Apparatus for use with a toy vehicle comprises an accessory including a frame having a track portion formed in a curve (e.g. a 90‹ curve 26) between the two ends, the track being banked substantially away from a horizontal plate at each end (e.g. at an angle of 20‹). When there are means at each end for connection to adjoining tracks (connectors 146, 148) the adjoining tracks are thus twisted into a gradually changing banking orientation. The track portion may be supported on the floor, or in an elevated position on a trestle 140 by means of a bracket and channel attachment means, see Specification 1,253,086, in which latter position adjoining track portions are more easily twisted into the banking angles existing at the ends (of the curve).  Normally the curve sections are banked at their centres 156 at an angle (e.g. 55‹) greater than those at the ends 152, 154. A 180‹ curve accessory is also described (Fig. 8, not shown).
Patent GB-1258533-A (GB)
IPC: F16D55/00
Filed: 1970-01-29
Abstract: 1,258,533. Disc brakes. ALFRED TEVES G.m.b.H. 29 Jan., 1970 [5 Feb., 1969], No. 4234/70. Heading F2E. In a spot-type disc brake assembly including a rotatable brake disc 28, a non-rotatable brake carrier 1 having a part projecting across the edge of the disc and formed with an opening through which brake pads 7, 10 and pad carriers can be inserted on either side of the disc, an actuating unit 15 fitting into a recess in the brake carrier and acting directly on one of the brake pads 7 and a yoke plate 14 which embraces the carrier and actuating unit and applies the reaction force of the unit to the brake pad on the far side of the disc from the carrier, the yoke plate is guided in grooves 20, 21 in the brake carrier and grooves 17 in the actuating unit and is located in the far side brake carrier pad, e.g. by a pin 23 projecting into a recess in the carrier plate of the pad 10, resilient means such as a wire spring 29 pressing the yoke plate against a surface of the grooves to prevent rattling of the yoke plate. As shown, pins 13, passing through holes in the plate 4 and crosspiece 11, engage in slots in the pad carrier plates, and the yoke is arranged to slide parallel to the disc axis.
Patent GB-1289418-A (GB)
IPC: E01C11/10
Filed: 1970-06-30
Abstract: 1289418 Waterstops ACME HIGHWAY PRODUCTS CORP 30 June 1970 [30 June 1969] 31586/70 Heading E1B A resilient waterstop is provided with an internal truss structure which includes a pair of cross bars 46, 48 each terminating at and supporting one of the corners between the top walls 28, 30 and the side walls 22, 24. As shown, further cross bars 50, 52 support the corners between the bottom walls 38, 40 and the side walls.
Patent GB-1290112-A (GB)
IPC: F16C33/46
Filed: 1971-01-01
Abstract: 1290112 Bearings FEDERAL-MOGUL CORP 1 Jan 1971 [9 March 1970] 127/71 Heading F2A A roller bearing assembly comprises a window cage 16 in which the cross-bars have two pads 30 extending into an associated window, which pads terminate in seats 32 past which the roller can be snapped into the cage; circumferential grooves 34 extend through the cross-bars in line with the pads and thus define the radial location of the seats. The inner race ring may be channel shaped, as shown, with the cross-bars of the cage tapering radially inwardly, or the outer race ring may be channel shaped (Fig. 5, not shown), in which case the cross-bars taper radially outwardly.
Patent GB-1290964-A (GB)
IPC: B29C35/04
Filed: 1970-10-06
Abstract: 1290964 Moulding tyres KOBE STEEL Ltd 6 Oct 1970 [6 Oct 1969] 47400/70 Heading B5A A tyre press includes a stationary mould section M2, a movable mould section M1, a bladder B supported and controlled by a central mechanism, and an arm 16 with rollers Which, when the section M1 is raised by a drive means, is moved to a position below the cured tyre suspended from the central mechanism and is then raised and tilted to discharge the tyre on to a conveyer C. The arm is operatively connected to the said drive means, and for this purpose the arm is attached to a frame 8 with cam followers 10-12 engaging guide grooves 13-15 in plates 17 on both sides of the press. A cable 9 extends from the frame and over pulleys 6, 7 to a reel driven via a clutch from a pinion 2 engaging a crank gear 1 which effects the drive of the mould section M1. Thus when the press has been opened via the drive gear 1 the clutch is engaged to take up the cable and thereby operate the arm 16. On disengagement of the clutch the frame falls by gravity, which may be supplemented by spring loading, to the position of Fig. 2.
Patent GB-1295029-A (GB)
IPC: H01K1/38
Filed: 1971-04-19
Abstract: 1295029 Electric lamp; discharge lamps PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [11 April 1970] 26606/71 Headings H1D and H1F In an electric filament or gas discharge lamp comprising a tubular envelope sealed at one end having one or more filaments or electrodes secured to stiff conductors and/or supports passed through a common supporting member and secured to sealing foils fixed in the pinch seal and wherein the common supporting member is secured to the wall of the lamp, the foils fixed in the seal extend into the envelope and the point of connection between the conductor or support and a foil lies outside the pinch. A halogen lamp having two tungsten filaments 15, 17 and molybdenum reflector 19, conductors 5, 7, 9 and foils 23, 25 and 27 has a supporting member 3. The point of connection between the conductor or support and a foil may lie in the supporting member.
Patent GB-1295820-A (GB)
IPC: A61F13/56
Filed: 1971-10-18
Abstract: 1295820 Packages SEMPERIT AG 18 Oct 1971 [21 Oct 1970] 48314/71 Heading B8C A package comprises one or more articles 3 packed in a closed flexible envelope having fingers and thumbs portions and adapted after unclosing and removal of the article or articles to be used as a glove. The article or articles may be a machine spare part or parts and may also include a second glove. The envelope which may be made from textile fabric, leather or synthetic resin material may consist of a single folded foil or two layers of foil joined along their peripheries by welding or gluing. A cardboard hanging device 5 is attached to the waist portion 4 which is sealed along a tear-off seam 7.
Patent GB-1303053-A (GB)
IPC: G01R31/26
Filed: 1969-08-11
Abstract: 1303053 Testing semi-conductor devices JOSEPH LUCAS (INDUSTRIES) LTD 19 June 1970 [11 Aug 1969] 40006/69 Heading GIU Wafers, each containing a plurity of semiconductor devices, e.g. diodes, are sequentially tested by conveying them in turn first to a test station 13 and then on to a control station 14 where the test results are displayed, this display occurring whilst the next wafer is being tested at station 13. The display comprises a plurality of light-conducting rods, one for each diode in the wafer, whereby a spot of light is shone on each faulty diode. The operator views the wafer at the control station through a half-silvered mirror, so that the faulty diodes can be marked for rejection. The wafers are conveyed from a loading station 12 to the test and control stations 13, 14 on a rotatable support 11.
Patent GB-1307185-A (GB)
Title: Mould for continuous and semicontinuous casting
IPC: B22D11/059
Filed: 1971-04-22
Abstract: 1307185 Continuous casting V N BOBKOVSKY T G GORBUNOVA A V EMYASHEV S N ZELENOV A A LUZENBERG V M ORLOV V K SVYATOSLAVOV G S OSINTSEV I V SMIRNOV and V S ARTEMIEV 22 April 1971 10661/41 Heading B3F [Also in Division C1] A water-cooled mould 1 contains a graphite sleeve 3 bearing a layer 4 of co-deposited pyrolytic graphite and at least one carbideforming element, e.g. from groups III-V of the periodic system. Elements such as B, Hf, Nb, Si, Ti, Ta, V or Zr may be used. The graphite lining 3 is ground into the mould 1 and may include a mandrel 5 having fins 7 (with spaces 8 between) by which it is supported. The mandrel bears a layer 6 similar to the layer 4. The layers 4, 6 are produced by passing through the lining 3 a gas-steam mixture containing methane and at least one carbide-forming element, e.g. Si in combined form in SiCl4. They are machined to give smooth surfaces. Cur or Sn-phosphor bronze may be cast.
Patent GB-1308936-A (GB)
Title: Thermostatically controlled valve
IPC: F16K31/68
Filed: 1970-10-06
Abstract: 1308936 Valves RANCO CONTROLS Ltd 6 Oct 1970 47552/70 Heading F2V Thermostatic valve, e.g. for the passenger compartment heating system of a motor vehicle, where the valve controls the flow of hot coolant from the engine through an air heater, comprises a body 20, 21 with inlet and outlet 3, 3a, and a valve member 5, 7 movable by a stem 6 which extends out of the body. The free end of the stem is engaged by a temperature responsive expansible power means 28, 29 supported in a housing 25 which is mounted for axial movement without rotation. The range is set by a rotatable actuator 34 which surrounds the housing 25 and serves to adjust the housing and thence the power means 28, 29 axially. As shown, legs 26 of the housing 25 engage between splines 24 on the body 20. These legs have projections 41 engaged in a recess 42 in the actuator 34 which has cam tracks 32 engaging pegs 31 on the body 20. The two-part body 20, 21 is of plastics material, e.g. nylon, the parts being weldable, e.g. by friction welding at an interface 22 in a selected angular relationship between flanges (40, 46), Fig. 1 (not shown), to suit different mounting arrangements. The actuator 34 is operated by a Bowden cable.
Patent GB-1317122-A (GB)
Title: Panel mounting of electrical components
IPC: H02B1/044
Filed: 1971-04-29
Abstract: 1317122 Catch fastenings THORN ELECTRICAL INDUSTRIES Ltd 29 April 1971 12213/71 Heading E2A [Also in Divisions F4 and H2] An electrical component such as an indicator lamp or fuse is mounted in a holder 16 which can be inserted into a housing 14 through an aperture 17 in a panel 12 to which the housing is secured and removed from the housing when the component requires replacement, the holder being retained in the housing with its front face flush with the surface 13 of the panel by means of a latching mechanism which can be released by pressing the holder inwardly. Resilient means are provided for urging the holder outwardly when the latch is released. The latch comprises an abutment element 28 on one end wall of the holder 16 and a pawl 26 which is pivotally mounted on the corresponding wall of the housing 14 and is biased in an anti-clockwise direction (Figure 4) by a spring 29. When the holder is pushed into the housing against the force exerted by the resilient means (which are preferably the spring-loaded electrical contacts to the component) a claw 30 at the free end of the pawl rides up the inclined edge 33 of the abutment element 28 until it snaps over a tooth 34 on the element and engages a tooth 35 provided on the holder at a position spaced from the element to arrest rotation of the pawl. When the pressure on the holder is relaxed the resilient means cause the holder to move a short distance outwardly to the position shown in Figure 4 whereupon the claw 30 is released from the tooth 35 and abuts against a tooth 32 on the element 28. When it becomes necessary to remove the holder from the housing it is pressed inwardly until the claw 30 clears the end of the tooth 32, thereby releasing the latch and allowing the resilient means to force the holder out of the housing. Complete ejection is prevented by the engagement of the claw 30 with a ramp 40 on the holder, removal being effected by gripping the projecting portion of the holder with the fingers and pulling it out. The holder is pivoted to one end of a link 41 slidable in a track 42 in the housing so that when it has been removed from the housing it can be turned to the position shown in Figure 2.
Patent GB-1323680-A (GB)
Title: Liquid-fuel burner
IPC: F23D11/08
Filed: 1969-11-07
Abstract: 1323680 Liquid fuel burners; electric igniters LANDON KINGSWAY Ltd 22 Oct 1970 [7 Nov 1969] 54586/69 Headings F4F and F4T A liquid fuel burner for use in or adjacent to a combustion chamber comprises an impeller 24 for delivering combustion air to the chamber and a rotatable fuel feed member 20 comprising a hollow frusto-conical tubular member 21 having a flared portion or flange at its upper end with a cap 22 secured thereto to form circumferentially spaced passages 21a so that when the member 21 is rotated about a vertical axis liquid fuel from a reservoir 15 rises up the internal wall of the member and is flung out through the passages 21a into the impeller blades. The passages 21a are formed by ribs provided on the flange and/or the cap, or alternatively they are formed by drilling. The member 21 is connected to the impeller 24 by an apertured disc 28, and also to the rotor 19 of an electric motor 17 for rotation therewith. The burner is initially lit by electrical ignition means which may be a H.T. device 32 or a glow coil.
Patent GB-1332300-A (GB)
Title: Battery charging circuit
IPC: H02J7/00
Filed: 1970-11-17
Abstract: 1332300 Magnetic current-threshold detectors PAGE ENG CO (SUNBURY-ON-THAMES) Ltd 17 Nov 1970 [17 Nov 1969] 56139/69 Heading H3B [Also in Division H2] In a battery charging circuit a remanent core pulsed periodically into saturation is used to determine whether the charging current which acts in the opposite sense to the pulses exceeds a certain threshold, changes of the core flux being detected by an output winding. As shown a toroidal core 11 encircles a charging current conductor 16 extending from a motor driven generator 17 to a battery 18, and carries an output winding 19 and a winding 12 which is pulsed by a multivibrator pulse generator 13. The induced output winding voltage obtained when the charging current is such as to partially demagnetize the core is rectified at 21, this voltage being then applied through transistors 22 and 23 to a relay 27. The threshold at which the relay operates is determined by a Zener diode 24 in association with an adjustable potential divider 25. The core may optionally include a threshold-determining bias winding.
Patent GB-1336848-A (GB)
Title: Dual controls for motor vehicles
IPC: B60K23/00
Filed: 1969-11-24
Abstract: 1336848 Dual control pedal BRITISH SCHOOL OF MOTORING Ltd 23 Nov 1970 [24 Nov 1969] 57461/69 Heading B7H A dual control vehicle has a supplementary vehicle control pedal which is detachably mounted on a pedal support and has detachably secured thereto a linkage for transmitting movement of the pedal to an accelerator, brake or clutch mechanism. As described the pedal is an accelerator pedal 5 having welded thereto an inverted U-shaped member 9 which enables it to be hooked over a shaft 2 mounted in a frame 1 fixed to the vehicle floor. Two washers 3 welded to the shaft 2 prevent horizontal sliding movement of the pedal on the shaft 2. A supplementary accelerator cable 8 having a nipple 14 can be attached to the pedal 5 by sliding the cable 8 down a slot 7 until the nipple 14 is trapped in a recess 15. The cable 8 passes through a grummet 12 on the bulkhead 13 and a cap 16 can be screwed on to the grummet 12 over the nipple 14 when the pedal 5 has been removed. Also mounted on the shaft 2 are clutch and brake pedals (only one 10 being shown) which are connected to the main pedals by Bowden cables 11.
Patent GB-1342339-A (GB)
Title: Electrolytic refining of copper
IPC: C25C1/12
Filed: 1969-09-19
Abstract: 1342339 Electro-refining copper BRITISH COPPER REFINERS Ltd 18 Dec 1970 [19 Sept 1969] 46236/69 Addition to 1067297 Heading C7B Copper is electrolytically refined by immersing unrefined electrodes, made by cutting a continuously cast copper strip into lengths having the required superficial area, in series in an electrolyte solution, e.g. aqueous CuSO 4  acidified with H 2 SO 4 , contained in a tank whose inner surface e.g. lining is of an insulating, inert polymeric material, e.g. PVC, polythene, polypropylene, acrylonitrile-butadiene-styrene copolymer (or modification thereof), or other polymer containing at least C and H, and passing D.C. through the solution maintained at at least 54‹C to cause Cu from one electrode to be dissolved and deposited as pure Cu on another electrode. Intermediate bipolar unrefined electrodes may be suspended from a bar by straps or hooks, or so supported to be totally immersed in the solution as described and claimed in Specification 1342338, the last electrode may be of pure Cu and thinner. The D. C. may be reversed for short periods.