baber/WOPTO huggingface dataset:
Patent GB-1303338-A (GB)
IPC: H01L27/06
Filed: 1970-10-06
Abstract: 1303338 Semi-conductor devices WESTING- HOUSE BRAKE ENGLISH ELECTRIC SEMI-CONDUCTORS Ltd 20 July 1971 [6 Oct 1970] 47432/70 Heading H1K A semi-conductor device comprises a transistor and a thyristor in a single body, the thyristor, as shown, including anode region 33, the central part of region 34 as base, the central part of region 36 as gate, and an annular cathode region 38, the transistor including an annular part of region 34 as collector, an annular part of region 36 as base and an annular region 37 as emitter, the thyristor anode 33 and transistor collector 34 being commonly connected to an external lead via a conductive base 36, and transistor base 36 and thyristor cathode 38 being commonly connected to an external lead 14 by a lead 39. Signal generators may be connected between leads 9 and 14 and between leads 11 and 14 to provide "turn off" and "turn on" pulses respectively, the thyristor acting to switch the transistor current. The transistor emitter region 37 may have radially inwardly directed fingers which interdigitate with the base region 36, the contact to region 36 following the fingers. In one embodiment a single signal generator may be used, a diode needed for that configuration being provided by a further region in region 36, of the opposite conductivity type thereto, and the portion of region 36 adjacent thereto. In the latter embodiment, the regions are no longer annular. Alternatively the thysistor only may be switched so as to operate the transistor.
Patent GB-1306355-A (GB)
IPC: G02B6/42
Filed: 1969-06-26
Abstract: 1306355 Connector for light-transmitting cables GENITO-URINARY MFG Co Ltd 17 June 1970 [26 June 1969] 32207/69 Heading G2J [Also in Division E2] A connector for a light-emitting apparatus comprises a generally cylindrical socket 18 formed with three through bores inclined so that their axes converge on a point at a distance from the socket, and three pins 19 for reception in respective bores, each plug being connected at one end to a light transmitting cable (23), Fig. 4 (not shown) and having a flange 22 at or near that end. The socket has a rotatable ring 20 having an inwardly extending flange (21), Fig. 2 (not shown) which engages the flanges 22 and which has an acurate cut out portion to enable one plug at a time to be withdrawn. The socket may be mounted on an apparatus 11 with a lamp 14 at the point of convergence of the inserted pins.
Patent GB-1307838-A (GB)
Title: Apparatus for and a method of reducing the effect of noise in the output current of a photoemissive cell
IPC: H03F3/387
Filed: 1969-07-17
Abstract: 1307838 Reducing noise in a photo-emissive cell circuit VICKERS Ltd 18 May 1970 [17 July 1969] 36163/69 Heading G1A A method or apparatus reducing the effect of noise in a photo-emissive cells output current including the steps of feeding the current to an integrator capacitor, repeatedly discharging the capacitor and amplifying the signal produced. In an embodiment, Fig. 3, a photo-multiplier tube charges an integrator capacitor 1 that is repeatedly discharged via a transistor S1 which is switched on for a 1 Ás period every 100Ás by a series of clock pulses introduced at A. The resulting waveform Fig. 26 (not shown) is amplified by means of the combination of a F.E.T. 7 an operational amplifier 9, a shunt synchronous demodulator 10 and a further operational amplifier 11 as shown. The amplified waveform is subsequently fed into a further F.E.T. 12 acting as a switch and in series with a small resistor. The F.E.T. switch is normally open, but when a 'sample hold' signal is applied at C the switch is closed allowing a capacitor 14 to charge or discharge to the level of the output amplifier 11. A further amplifier 13, a voltage follower of high input impedance (allowing the capacitor 14 to retain its charge), provides the output waveform of the system Fig. 2c (not shown).
Patent GB-1311135-A (GB)
Title: Drafting instrument
IPC: B43L13/04
Filed: 1970-10-22
Abstract: 1311135 Scribing JAMES WEBB & SONS (ENGS) Ltd 21 Sept 1971 [22 Oct 1970] 50107/70 Heading B4X [Also in Division G1] A draughting instrument, for marking out a pattern, e.g. on to which may be projected an image of a tool whose form is to be checked, has a portion 13 guided by ball race rollers 15, 17 along an edge of a steel table 11 having at least two mutually perpendicular edges, and a measuring portion 14 having inch and metric scales 24, 25 and on which a carriage 21 supporting a scriber 29 is slidable, the portion 14 having rollers 18, 20 such that it can be moved over a drawing sheet 12 arranged on the table. The sheet may be a plastics material which is dimensionally stable despite temperature variations. In use, the carriage is set in position and locked by means of a bracket 26 and screw 27, and the scriber is finely adjusted using adjustment screw 28 and vernier scales 22, 23. The height of the scriber is thus adjusted to scribe the sheet 12 to the required depth, and the guide portion is moved along the edge 16 thereby guiding the scriber over the sheet.
Patent GB-1311240-A (GB)
Title: Nuclear fuel element with multiple fuel tubes
IPC: G21C3/332
Filed: 1971-10-06
Abstract: 1311240 Fuel elements UNITED NUCLEAR CORP 6 Oct 1971 [21 Jan 1971] 46373/71 Heading G6C In a nuclear fuel element having an array of parallel fuel tubes restrained from bowing and vibration by spacer devices in predetermined spaced relation along the length of the fuel tubes, the spacer devices are prevented from shifting lengthwise of the fuel tubes by employing at least one of the fuel tubes as a capture tube, the walls of which are continuous from end to end and have at least one pair of external lugs for each spacer device formed integrally with the walls of the tube, the lugs of each pair being spaced apart lengthwise of the tube and engaging the opposite edges of projecting sections of a spacer device. The spacer devices each comprise a rigid, thin metallic band which surrounds the fuel tubes 7 and is divided internally into a number of cells by two sets of spaced, parallel, rigi i metallic strips 10, 11 intersecting each other at right angles, and by two sets of parallel pairs of resilient members 12, 12a and 13, 13a intersecting each other and the rigid strips 10 at right angles. Each fuel tube 7 is contacted by the spacer devices at four points 90 degrees apart, two of these contacts being with beads formed on the rigid strips 10, 11 and the other two with the resilient members 12, 12a and 13, 13a. The (or each) capture tube 15 is similar to a fuel tube 7 but has at each of a number of positions spaced along its length four pairs of lugs 16, 17, 18 and 19 projecting from the surface of the tube at right angles to one another. The cells 20 through which the capture tube 15 passes differ from the remaining cells of the spacer devices in that the central portions of the rigid strips 10, 11 are pressed inwardly to form ledges 21, 22 of the same width as the resilient members 12, 13, the latter having inwardly bowed portions 23, 24. The upper and lower lugs of each pair of lugs 16, 17, 18 and 19 engage respestively the upper and lower edges of ledges 21, 22 and bowed portions 23, 24, During assembly, the capture tube 15 is inserted with the flat surfaces between adjacent lugs parallel with the sides of the cell 20 and is then rotated through 45 degrees. The capture tube 15 is closed by end plugs and filled with fuel pellets except for a void space adjacent the upper end plug, there being an insulation disc having a central aperture for the passage of fission gases above the uppermost pellet, and a coil spring between this disc and the top end plug. A suitable material for the sheathing of the capture tube is stainless steel or a zirconium alloy.
Patent GB-1313471-A (GB)
Title: Game apparatus
IPC: G07F17/34
Filed: 1971-09-25
Abstract: 1313471 Chance apparatus W ROBSON 25 Sept 1971 44781/71 Heading A6H A chance apparatus for selecting a pair of letters of the alphabet and intended for use on a petrol station forecourt includes a pair of cycle wheels having soldered around their rims brass shims 1. Each shim (1) is marked with the 26 letters of the alphabet. The wheels are each provided with a 26-tooth gear wheel (2) fixed fast to their hubs and are mounted on free-wheeling units (3), each free-wheeling unit (3) being provided with an actuating member (4) linked to a rotary drive shaft (A) by a pivoting link (8A9) and a drive pin (7). The shaft (A) is rotated by hand, the extent of rotation being limited by offset pins (C) and an interposed bar (B), to set the wheels spinning. After spinning the shaft (A) is returned to its original position by springs (not shown) and the wheels are braked by a device comprising a braking pin (8) attached by a member (6) to the shaft A. The pin (8) seats against the gear wheel (2) having 26 teeth thereby to bring the wheels to rest in one of 26 positions. The selected letters are visible through peep holes cut in a plastics shield (O).
Patent GB-1322894-A (GB)
Title: Temperature measurement
IPC: G01K1/14
Filed: 1969-07-26
Abstract: 1322894 Thermocouples DUNLOP HOLDINGS Ltd 20 July 1970 [26 July 1969] 37659/69 Heading H1K [Also in Division G1] Apparatus for measuring temperature of an article 1 (e.g. a tyre) comprises a temperature sensitive device 7, 8 or 9 secured to a reciprocatable device 4, 5 or 6 and having a needle-like sheath whereby, in use; the reciprocatable device can be actuated to embed the sheath in the article for temperature measurement. As shown, thermocouples 7, 8, 9 which may be iron/constantan thermocouples mounted in metallic sheaths may be provided with stops 13-15 to limit penetration into a tyre. The thermocouples 7, 8, 9 are connected to associated piston-cylinder arrangements which are controlled by solenoid valves V 1 -V 3  and are mounted on plates 16, 17, 18, the plates 16, 17, 18 being adjustably supported by way of screw and slot arrangements on a base plate 2 which itself is slideable, by a manually operable screw arrangement, on a framework 3. In use, the apparatus is located adjacent a tyre 1 on a test machine or on a vehicle and, in the case of a test machine, the tyre is rotated for a predetermined period of time by drive rollers or wheels and at the end of such time the temperature at various locations within the tyre is determined.
Patent GB-1331053-A (GB)
Title: Lathes with automatic tool change facilities
IPC: B23Q3/155
Filed: 1969-10-09
Abstract: 1331053 Lathes; tool changing ALFRED HERBERT Ltd 2 Oct 1970 [9 Oct 1969] 49569/69 Headings B3B and B3T In a machine tool such as a lathe, having tool changing means, there is provided a rotary tool magazine 16 on which are mounted a plurality of tool carriers 19 from which successive tools can be transferred by a transfer unit 45 and located in a tool mounting 17 on the machine slide 15 in readiness for operation. Each of the tool carriers on the magazine has a guide track 19a with which a tool, having a complementary track portion, is clampably engageable. The tool mounting 17 has a corresponding guide track which is alignable with that on the tool carrier, whereby the tools can be moved by the transfer means 45 from the carrier to the mounting and vice versa, the transfer means moving parallel to the track. The transfer means is provided with a further guide track 51 which is perpendicular to the alignable track and which is engageable with a further portion of a tool when the transfer means is in co-operation with the magazine and by the engagement between the complementary tracks, the respective tool is moved by the transfer means. The tool mounting 17 on the slide 15 is provided with an annular toothed ring which is engageable with a corresponding ring on the tool. A fluidactuated piston displaceable along an axis at right angles to the guide track is further provided in the slide 15 at the tool mounting, whereby the tool may be drawn towards the mounting to engage the co-operating toothed rings and thus rigidly clamp the tool to the mounting. The piston has a tapered portion which engages balls which are urged radially against an abutment to wedge the piston in the clamped position. Fluid pressure applied to the reverse side of the piston effects release of the piston prior to a tool changing operation and which is retained in the released position by a spring. Prior to clamping the tool in the mounting it may be rotated about the axis of the piston by a fluid actuated rack member 36 to permit the orientation of the tool in any required position. When the tool to be clamped in the mounting is of the rotary type, drive means 41 is provided by way of gearing from a fluid motor on the machine slide 15. In an alternative embodiment shown in Fig. 4, the magazine is in the form of a plurality of trolleys 160 movable along a continuous track 161 which is located behind the bed 111 of the lathe. The track is interrupted at one position only and which can be bridged to permit the traverse of the tool carriers on the trolleys by a reciprocatable transfer means 163, the bed being provided with a window 174 with a shutter 175 which is opened and closed by an actuator to permit the transfer of tools to and from the magazine to the tool mounting 117 where the tools are clamped as previously described.
Patent GB-1331475-A (GB)
Title: Dialysis apparatus
IPC: C08L21/00
Filed: 1970-11-26
Abstract: 1331475 Multi-unit dialyser for milk &c MOLKEREIGENOSSENSCHAFT DAHLENBURG E GmbH 26 Nov 1970 [23 Jan 1970] 50997/72 Divided out of 1331474 Heading B1X A dialyser comprises units 9, 10 &c to which dialysate is pumped from a feed tank 6 by a pump 7, dialysate returning to the feed tank 6 through conduits 13, 14 &c and an evaporator 21 selectively connectable through valves 19, 23 in circuit with the feed tank 6 for concentrating the dialysate, condensate from the evaporator 21 being supplied to a tank 26 which collects water or other solvent from the dialyser units 9, 10 &c through conduits 29, 28 &c and from which water is pumped through a conduit 12 to the dialyser units. The dialysate, which may be skim milk or whey, may be initially concentrated in an evaporator 2, and part of the water with diffusate (sugar and salt in the case of dialysis of milk) from the tank 26 is fed to an evaporator 43. The condensates from the evaporators 2 and 43 are also fed to the tank 26. Heat exchangers 103, 104 may be provided in the conduits for the supply of dialysate and water to the dialyser units. Dialysate from the feed tank 6 (containing albumin in the case of dialysis of milk) may be pumped through a cooler 31 for further processing. The dialyser units may be arranged in pairs, Fig. 2 (not shown), the pairs being arranged one above the other and being supported by cross-members secured to a pair of vertical columns 48 one of which is shown in Fig. 3. Each unit comprises a tank 56 in which members 89 support a number of semi-permeable tubes 78 which are compressible and are fitted into the members 89 through slots in the peripheries of the latter. The tubes are connected in pairs at their ends by U-shaped tubes 79 so as to form one long tube the ends of which are connected through tubes 81, 82 to inlet and outlet conduits 84, 83. Water or other solvent is supplied through a conduit 96 which feeds through branches 100, 101, 102 into pipes 93, 94, 95 which surround the latter with clearance. The pipes are open at their other ends and the arrangement is said to produce a uniform -supply of solvent to the tank, from which it flows through an overflow pipe 99. The pipes 93, 94, 95 rigidly support the members 89 and their ends are carried by members 80, arrangements being provided on the assembly for lifting a unit of pipes 93, 94, 95 end tubes 78 from its tank, and supporting it, for maintenance purposes.
Patent GB-1335541-A (GB)
Title: Colour measuring devices
IPC: G01J3/50
Filed: 1970-01-19
Abstract: 1335541 Photo-electric colorimeters PAINT RESEARCH ASSOCIATION 6 Jan 1971 [19 Jan 1970] 2520/70 Heading G1A [Also in Divisions G2 and G3] In a device for measuring the colour of a surface 14 illuminated by a lamp 36 (e.g. via a fibre optic light guide 34), reflected light is collected by a sensing head 12 and conducted by a plurality of light guides 16-21 to a detector head 22, at least one light guide having associated therewith a filter chosen so that the detector output is representative of one of the three primary tristimulus values X, Y, Z defined by the Commission Internationale de l'Eclairage. By dispensing with the filter(s), and illuminating the surface with light from a monochromator, the device may be used as a spectrophotometer. The sensor head comprises a hemispherical shell through the top of which the input light guide protrudes with a plurality of output fibre optic guides arrayed symmetrically about the input Figs.3-5 (not shown). The detector head comprises two mutually rotatable cylinders 23, 24. The outer cylinder contains ports 23a receiving the output light guides. The inner cylinder contains two rows of apertures 24a each containing filters 26. These filters are arranged in four sets, two sets to each row. A different filter set is positioned by either rotating or axially moving the inner cylinder. A diffusing screen 33 is placed between the guide ends and a photo-multiplier 32. To measure the colour of a surface the sensing head is placed adjacent the surface and, with a particular filter set in position, the photomultiplier output indicated on a digital voltmeter and a counter 52 indicates one tristimulus value. The other values are measured with other filter sets. The colorimeter is calibrated by illuminating the detector head directly by the lamp 36, which is supplied from a stabilized source, via a light guide 40. A movable slit 42 is provided adjacent the lamp for this purpose. There may be additional subtractive filters 25, 46, 48. Automatic process control in paint manufacture is described Fig.7 (not shown). Variable capacity pumps (74-77) controlled by a central control unit (84) supply differently tinted bases to a mixer (78). On its way from the mixer to a storage vessel a portion of the paint is diverted to a constant level device Fig.6 (not shown) and its colour detected by the colorimeter. The colorimeter output is supplied via a computer (83) to the control unit, which adjusts the speeds of appropriate pumps to maintain the paint colour constant. The colorimeter may be used to monitor the colour anodizing of aluminium and in other processes such as paper manufacture, ceramics, textile dyeing and heat treatments such as hardening or annealing.
Patent GB-1343161-A (GB)
Title: Fuel tank filler cap
IPC: B60K15/04
Filed: 1972-05-26
Abstract: 1343161 Locking fuel tank filler cap TUDOR ACCESSORIES Ltd 26 May 1972 [8 July 1971] 32223/71 Heading B8T A locking fuel tank filler cap for motor vehicles comprises a cylinder lock 9 rotatable in a bore 6 by means of a key (not shown) to release the cap, the clearance between the cylinder lock 9 and the bore 6 being sealed by a rubber or plastics U-section ring 10 which permits air flow into the tank but prevents outflow of air or fuel vapour from the tank. The cylinder lock 9 carries two eccentric pins 20 and 21 engaging sockets 22 and 23 in bolts 13 and 14 which are spring-loaded to engage under the inturned flange 34 of the filler pipe 33 but which are retracted by rotation of the cylinder lock 9. The cap is prevented from rotating by recesses in the flange 34 receiving projections 26 and 27 on the cap. The sleeve 4 of the cap is inserted into the sealing ring 35 and pushed into the filler pipe 33, the bolts 13, 14 being thereby pushed inwards by their chamfered faces 17 until clear of the ring 35 when they spring outwards. In Fig. 3 (not shown), the filler pipe has an out-turned flange (34<1>).
Patent GB-1343342-A (GB)
Title: Fluid control valve
IPC: F16K31/06
Filed: 1971-09-16
Abstract: 1343342 Valves MACLAREN CONTROLS Ltd 16 Sept 1971 43307/71 Heading F2V In a valve having two closure members 6, 12 co-operating with two concentric seats 45, a downward thrust on spring-loaded valve stem 7 causes both closure members 6, 12 to move off their seats if electromagnet 18 is energized to couple coaxial stems 16, 13. On current failure the electromagnet releases armature 15 to allow closure 12 to seat under the action of spring 20. Actuation of stem 7 may be by hydraulic motor or solenoid. Other embodiments having hinged valve member and gate valve members are described.
Patent GB-1347470-A (GB)
Title: Memory cells
IPC: G11C15/04
Filed: 1970-12-22
Abstract: 1347470 Bi-stable circuits; data storage matrices MARCONI CO Ltd 9 March 1972 [22 Dec 1970] 60821/70 Heading H3T Each bi-stable memory cell of a storage matrix is controlled by two column wires A, B, and one row wire C, a path 14, 15, between the column wire A and the row wire C being primed when the bi-stable 1, 2, stores ZERO and a path 16, 17 being primed when the bi-stable stores ONE, an interrogation pulse on the C wire switching the primed path for non-destructive read out to the wire A or B, or an interrogation pulse on the A or B wire switching the primed path to non-destructively read the cell state to wire C. The bi-stable comprises cross-coupled MOS transistors 1 and 2 with transistors 4 and 5 as drain loads. ZERO is stored if 2 conducts with 1 cut off, MOS transistor 15 being primed to conduct between A and C but MOS transistor 17 being cut off between B and C. If wire C is pulsed at -20 volts, transistor 8 turns on with transistor 14 following to complete the path between A and C and indicate the zero state. If ONE is stored, 17 is primed and the pulse on the C wire is steered to the B wire by the switching of transistor 11 followed by 16. An alternative mode of reading out is effected by pulsing wire A or B with -20 volts so that the switching on of transistor 9 or 12 does or does not couple the pulse to wire C, according to the state of the bi-stable, by switching transistor 14 or 16. To write ZERO into the cell with a fast switching time, wires A and C are pulsed with -20 volts. This switches transistors 8 and 9 to conduct and drive transistor 2 of the bi-stable to conduction, the concurrent switching of transistors 11 and 13 shorting 2 to discharge stray drain capacitance and drive 1 off. To write ONE wires B and C are pulsed to produce a complementary switching action. A matrix of such cells is produced as an integrated circuit on a silicon substrate to provide an associative memory.
Patent GB-1349802-A (GB)
Title: Hydraulic dock leveller
IPC: B65G69/28
Filed: 1971-03-11
Abstract: 1349802 Dock levellers BLUE GIANT EQUIPMENT OF CANADA Ltd 11 March 1971 53440/70 Divided out of 1349801 Heading B8E The description and drawings are substantially identical with those of the parent Specification 1,349,801, but the claims differ.
Patent GB-1355185-A (GB)
Title: Speed made good indicator for yachts
IPC: G01P5/02
Filed: 1970-06-19
Abstract: 1355185 Measuring speed of yachts electrically E M I Ltd 17 Sept 1971 [19 June 1970] 29762/70 Heading G1N Apparatus for measuring the speed of a yacht in the windward direction when the boat has to tack in order to proceed in that direction comprises a fluxgate 10 Fig. 3b mounted on the boat's compass card 8 which measures the angle # between the yacht and the wind, enabling the component of the boat's speed in that direction to be calculated. The compass card 8, carrying the fluxgate 10 aligned N-S, is initially adjusted correctly with respect to the compass 9 for the boat heading into the wind. The yacht, in accordance with a tacking manoeuvre, is then rotated through an angle #, and the ratio of the two fluxgate outputs is equal to cos #. The forward speed V. of the yacht is measured by a standard log (not shown) and the product Vs cos #, obtained by a Hall plate element or otherwise indicates on a meter the speed in the desired direction. A further fluxgate can be used to determine V. sin #, the distance travelled off course. The apparatus may be used to measure the speed in any other predetermined direction.