baber/WOPTO huggingface dataset:
Patent GB-1122867-A (GB)
Title: Improvements in stretch draw forming
Inventor: BATES CONRAD ROY
IPC: B21D43/02
Filed: 1966-07-07
Abstract: 1,122,867. Stretch - forming; shearing. JOSHUA BIGWOOD & SON Ltd. 30 June, 1967 [7 July, 1966], No. 30519/66. Headings B3E, B3Q and B3W. A method of stretch-draw forming continuous strip metal 11 comprises feeding the strip between a pair of tensioning means 19, 20 one on each side of a pair of drawing dies 15, 17, tensioning the portion of strip between the means 19, 20 beyond its elastic limit, drawing the portion between the dies to form an article, releasing the tensioning means and freeing the portion from the dies, then moving the strip to feed a further portion between the dies and carry the formed portion beyond the tensioning means 20 so that it may be cut from the remainder of the strip, and continuously repeating the above steps. A coil-breaker 12, which may shape the strip transversely, is disposed between a reel 10 of the strip and the intake gripper 19. The grippers 19, 20 may be as described in Specification 893,001, or have jaws as described in Specifications 809,619, 739,291 and 614,186. As shown, the jaws 21 of gripper 19 are closed hydraulically, along inclined guides 21a, those of gripper 20 being operated hydraulically in a direction perpendicular to the strip. Both sets of jaws 21, 22 are moved apart by fluid-pressure cylinders 28 to tension the strip, and are then lowered, by cylinders 27, to wrap the strip around the lower die 15. Instead of moving the jaws hydraulically, they may be operated by other means, and at least one rib (25), Fig. 2 (not shown), and a co-operating groove (26) are provided on the jaws 22. Operation.-After tensioning the strip, the tension is reduced to a value still above the elastic limit before the grippers are lowered. The upper die is now lowered, strip-tension preferably being kept constant by the escape of fluid from the cylinders 28. After releasing the tension, raising the top-die 17 and the grippers and opening the grippers, a pull-out device 31 is inserted between shear blades 30 to grip the end of the strip and pull the worked part of the strip on to a conveyer 32 for removal after operation of the shear, which may have two pairs of blades, one for severing each side of a gripped zone of the strip.
Patent GB-1198982-A (GB)
Title: Fuel Systems for Gas Turbine Engines
Inventor: MOWBRAY DORIAN FARRER
IPC: F02C7/232
Filed: 1966-07-07
Abstract: 1,198,982. Gas turbine engine fuel systems. JOSEPH LUCAS (INDUSTRIES) Ltd. Oct. 3, 1967 [July 7, 1966j, No.30554/66. Heading F1G. A gas turbine engine fuel system comprises a pair of pumps 12, 11 connected respectively to main and pilot burner conduits, a fuel flow control device 14 in the main burner conduit, a non- return valve 17 disposed in a passage interconnecting the two conduits to permit flow from the main to the pilot burner conduit, and a valve 15 in the main burner conduit downstream of the control device 14 and opening to permit flow of fuel to the main burners 16 when a predetermined pressure in the main burner conduit is reached, the opening of the valve 15 being modified in accordance with the pressure drop created in the main burner conduit by the control device 14. This pressure drop, which occurs between a passage C and a point A in the main burner conduit, acts on the valve 15 to assist its opening. When the valve 15 opens the non-return valve 17 closes and thereafter the pump 12 supplies only the main burners 16.
Patent GB-950470-A (GB)
Title: Improvements in or relating to means for giving a warning of deviation from a predetermined course
Inventor: GILLIE JOHN CALDER
IPC: G01C17/26
Filed: 1960-09-06
Abstract: 950,470. Magnetic compasses. JOHN LILLEY & GILLIE Ltd. Aug. 21,1961 [Sept. 6, 1960], No. 30629/60. Heading G1F. Vessels provided with automatic steering have an independent monitoring device for warning when the vessel deviates from the preset course by more than a certain angle. The magnetic compass 10 is mounted in gimbals 11 whose outer journals are mounted in a rotatable graduated verge 12. When the vessel is on its set course, the graduation on verge 12 corresponding to the true course being steered is set against the local variation on scale 13 provided on the instrument casing 13a. The arcuate member 14 of brass or other non-magnetic material located on the 90 degrees-270 degrees line of the verge 12 is now at right angles to the magnetic meridian and if the compass card is not in the meridian, due to local attraction, it is corrected by suitably rotating a small magnet 15, carried by member 14, about the horizontal axis 17 parallel to the 0 degrees-180 degrees meridian on verge 12. If the vessel now goes off course by more than a predetermined amount, a member 18 on the compass card actuates one or other of the switches or contact devices 19, 20 on the compass bowl, or vice versa, to actuate an alarm or indicator device. The magnet 15 may be replaced by twin magnets hinged together.
Patent GB-460323-A (GB)
Title: Improvements in or relating to magnifying glasses
IPC: G02B25/00
Filed: 1935-11-06
Abstract: 460,323. Magnifying - glasses. KERSHAW, N., KERSHAW, C., and SOHO, Ltd. Nov. 6, 1935, No. 30634. [Class 97 (i)] In a magnifying-glass comprising a single lens mounted in a frame having a handle, the handle is adapted to be collapsed or folded into a position alongside the edge of the lens or within the side or sides of the frame. The lens 1 is mounted between two rings 2 each having a broad flange 2x of such thickness that a channel is formed between the flanges. The handle 3 is formed in two parts which are pivoted between the flanges at 4, 4 so that when folded about their pivots they enter the channels between the flanges 2x, as in Fig. 2. The handle parts are retained in alignment when in their open position by a tongue-and-slot connection 3x.
Patent GB-666543-A (GB)
Title: Improvements in and relating to linear ball bearings
IPC: F16C29/12
Filed: 1949-11-29
Abstract: 666,543. Rectilinear-motion bearings. DEXTER & CO. (HIGH WYCOMBE), Ltd., and McVEY, G. Nov. 29, 1949, No. 30647/49. Class 12 (i). A rectilinear motion ball-bearing as for flame-cutting and wood-working machines, and as claimed in Specifications 655,961, 662,366 and 665,579, has guideways forming an endless ballcircuit in which the bearing balls are not subjected to load. As shown, the movable bearing-member 2 comprises three I-section bars 3 ... 5 spaced by top and bottom ties 6 secured by bolts 7, and its racetrack for bearing balls 17 comprises pairs of cylindrical rods 9 secured by screws 10 to an outer groove in each bar 3, 5. The stationary bearing member 1 has two carriers 12 supporting their racetracks comprising pairs of rods 13 similarly secured in grooves by screws 15, a flange 11 of the member 1 having springs 21 housed in adjusting cap nuts 22 to exert a predetermined pressure on the bearing prior to securing of the carrier by bolts 19. The guideways 25 comprise pairs of cylindrical rods 26, 28 similarly secured by screws 31 to the inner grooves of the outer bars 3, 5 and to the inner bar 4, respectively, and pairs of J-shaped end rods 27, 29 arranged to feed the balls 17 around the guideway and sawtrack circuit, the curvature of the end rod loops being such as to slightly widen the ball gap 18 between the guideway tracks. In modifications, each guideway may comprise a tube consisting of one straight and two looped ball feeding/receiving sections, or the latter may comprise semi-circular grooves in two adjacent half-blocks at each end of a straight tube. To facilitate ball flow the ends of the inner track rods 9 may be tapered.
Patent GB-1234985-A (GB)
Title: Improvements in and relating to methods of manufacturing semiconductor devices
IPC: H01L29/00
Filed: 1968-06-27
Abstract: 1,234,985. Semi-conductor devices. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 27 June, 1968 [30 June, 1967], No. 30766/68. Heading H1K. A Zener diode has an abrupt PN junction J 2  between two regions 25e, 29 respectively diffused from opposite sides of part of the semi-conductor body containing the diode. The embodiment shown is an integrated circuit comprising a Zener diode and an NPN transistor formed in two N-type epitaxial layers 24a, 24b on a P-type Si substrate 21. The diode has a P+ region 25e formed by rediffusion through the upper layer 24b of boron prediffused into the surface of the lower layer 24a. A contact region 25 is formed by merging the region 25e with a surface-diffused P-type region. The N+ region 29 of the diode is formed by diffusion of phosphorus into the surface of the upper layer 24b. The base and emitter regions 26, 27 and the collector contact region 28 of the transistor are diffused into the layer 24b, and the collector region also includes a low resistivity region 23 formed by redistribution of arsenic from a pre-diffused region in the layer 24a. P + type isolation walls 22 are produced by redistribution from regions prediffused into the substrate 21 and each of the layers 24a, 24b. Isolation may alternatively be effected by means of grooves. The Specification also discloses integrated circuits containing one or more Zener diodes combined with PNP transistors, field effect transistors and other components such as capacitors or resistors. In certain arrangements two epitaxial layers of opposite conductivity type may be provided, in which case the device isolation may be partly effected by the junction between the layers. Various arrangements are described to facilitate such isolation. In one embodiment (Fig. 9, not shown), the abrupt junction (J 9 ) of the diode coincides substantially with the boundary between the two epitaxial layers (94a, 94b), the lower diode region (95) being formed by the redistribution of impurities in a pre-diffused zone in the surface of the substrate (91).
Patent GB-772092-A (GB)
Title: An improved process for making welding electrodes
Filed: 1954-10-26
Abstract: A process for making a welding electrode consisting of a wire core coated with a pulverulent flux containing alkali silicate as a binder, is characterized in that the coating material is heated and then pressed on to the wire core which also is heated.  The heating of the core may be effected by the drawing or straightening of the core.  The coating material may be heated out of contact with air. The material may be pressed on to the core by means of a screw press which mixes and conveys.  The temperature inside the screw press may exceed the boiling point (at 1 atmosphere) of the liquid ingredients of the material.
Patent GB-672687-A (GB)
Title: Improvements relating to control systems for direct current motors
Inventor: GHALIB SELCHOUK AHMED
IPC: H02P7/30
Filed: 1948-11-29
Abstract: 672,687. Control of D.C. motors. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Dec. 5, 1949. [Nov. 29, 1948] No. 30934/48. Class 38 (iii). [Also in Group XXXV] In a, speed control system for a separately excited D.C. motor 1, the armature is supplied by a bridge rectifier 5 connected to an a.c. source 6 through a saturable reactor 8 correctively controlled acccording to the motor speed. The control winding 14 is energized by the resultant of the armature voltage opposed by a reference voltage across potentiometer 17 and a voltage proportional to armature current (obtained across potentiometer 13 from a current transformer 10 and rectifiers 12). A winding 18 in series with the armature provides positive feedback. In an alternative arrangement the winding 14 is connected in series with a. tachometer generator and the reference potentiometer 17. It is also stated that acceleration, torque, or angular position of the motor may be controlled.
Patent GB-282966-A (GB)
Title: Apparatus for recording the number and condition of coins in paper covered coin rolls
IPC: G07D9/06
Filed: 1926-12-07
Abstract: 282,966. McKey, E. J., and Bruton, J. J. Dec. 7, 1926. Roller-and-sheet recording-apparatus. - A device for marking on the paper wrapper of coin rolls a series of marks equal to the number of coins contained therein comprises an apertured casing with a heavy block base 1, Fig. 2, carrying a platen 14 of bar steel and pairs of spring- arms supporting spools 3, 3<1> for an ink-ribbon or other copying material held flat on the platen by rollers 12, 13. The spool 3<1> is turned by a device 17 having a finger rod 19 and a ratchet wheel engaged by a pawl for preventing retrograde movement. A record, as shown in Fig. 5, is produced on the wrapper by striking it a sharp blow on the ink-ribbon. A duplicate of the record is obtained by passing a record-strip 21 across the platen at right angles to the inkribbon, the record-strip 21, as shown in Fig. 3, being mounted in slots 22 in a recess of the base block 1.
Patent GB-390239-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B7/282
Filed: 1931-11-09
Abstract: 390,239. Cables. JOHNSON & PHILLIPS, Ltd., Charlton, and PYNE, A. P., 7, Kidbrook Park Road, Blackheath, both in London. Nov. 9, 1931, No. 31037. [Class 36.] An exposed cable having rubber insulation is protected from the weather by a covering of material impregnated with a medium comprising oil and a lead compound adapted to harden through oxidation, an oil resistant layer preferably being disposed between the rubber insulation and the protective covering. In the construction shown, a conductor 1 has rubber insulation 2, preferably of the rubber compound known under the registered Trade Mark " Semaphite," over which is applied two or more layers 3 of varnished cambric retained by a wrapping of paper 4 impregnated with linseed oil. A covering 5 and braiding 6, each of cotton impregnated with a mixture of red or white lead with linseed oil and paraffin wax, completes the cable. An earth screen may be provided between the varnish cambric layers 3 and the impregnated paper wrapping 4.
Patent GB-673015-A (GB)
Title: Improvements in the manufacture of reinforced concrete elements
IPC: B28B23/04
Filed: 1949-12-03
Abstract: 673,015. Prestressed concrete. SCHROEDER, W., and BOENNINGHAUS, R. Dec. 3, 1949 [Oct. 1,.1948), No. 31118/49. Class 20(iv). Prestressed concrete elements, e.g. slabs, props, beams, joists, columns, box girders, piles, railway sleepers, are made continuously in a train of moulds 7, each mould being placed, in succession, around tht wires 15 at A and connected, e.g. by hooks, to the next forward mould, so that the moulds pass over the roller way 6 to' a concrete charger 9, a vibrator 10 and a heating tunnel 11 in which the concrete sets. The traction on the wires is applied by an opposed pair of belts 13 which grip opposite faces of a concrete member from which the mould has been stripped at B, the bond of the wires and concrete being sufficient for this purpose. The wires between concrete members are then severed. The moulds are returned to position A by a conveyer 8. The wires 15, single or stranded, are supplied from superposed narrow drums on a frame 1, and pass over guides 2 through friction clamps 3 on to brake drums 4, which determine the tension. The wires are presented by rollers 16 to a guide 17 which positions them relatively to the moulds. The tensions of the wires are indicated by meters 5 of known. kind. The clamps 3 each comprise two jaws which are grooved to engage the wire slidably, one jaw being spring-loaded towards the opposed jaw, and both jaws being chamfered at their entrance ends so that joins in the wire can pass through the clamp. The clamps apply sufficient drag to enable the brakes 4 to function, the brakes each comprising a drum 22, Fig. 4, which is grooved to receive the wire and is engaged internally by brake blocks 24 pressed outwardly by springs. When the wire tension overcomes the brake friction, . the drum 22 rotates to allow the moulds and wires to feed forwards, but it maintains the tension in the wire. The apparatus is started by laying a dummy train, e.g. of iron or concrete members, on the roller way 6 and in the belts 13, the wires 15 being connected to the last member of the dummy train. When the first concrete member reaches the belts 13, the process may continue normally. The roller way may have a slight downward inclination.
Patent GB-1039028-A (GB)
Title: A gusseted multiply bag
IPC: B65D30/20
Filed: 1963-08-07
Abstract: 1,039,028. Bags. WEST VIRGINIA PULP & PAPER CO. Aug. 7, 1963 [Aug. 13, 1962], No. 31133/63. Heading B8K. A gusseted, multiply bag is formed from a blank cut from a web 13 of plies of material which web is cut so that front and rear walls 16, 22 and panels 18, 20 of gusseted side walls are displaced longitudinally relative to each other to provide rectangular bag end closure areas 27-29 which areas are folded over and are attached, as by gluing, to the front or rear wall. In the embodiment of Fig. 1 three plies are transversely displaced relative to each other before being adhered together at 15 to form the web 13. The blank is folded and joined along edges 14 to form a tubular blank, after which glue is applied to the areas 27- 29, the blank is folded about line a-a and sealing of the lower bag end is effected. The upper end of the bag is sealed in a similar manner.
Patent GB-306576-A (GB)
Title: Improvements in valves for use with heaters for liquids
IPC: F23N1/08
Filed: 1927-11-21
Abstract: 306,576. Tillett, A. J., and Clarkhills, Ltd. Nov. 21, 1927. Fluid-actuated fuel valves for water heaters.- In an interconnected gas and water valve arrangement for hot-water geysers, the valve 2 of the water valve unit 1 is connected to the rock shaft 6 leading to the gas valve, which is connected to an arm 14, by an elongated ring 4 on the upper side of the valve 2 and a hook on a detachable internal arm 5. This connection gives a degree of lost-motion which allows of the free seating of both valves. The rock shaft 6 passes out through a gland and packing 9, 10 and is restrained axially by a collar 13 and an adjustable bearing-member 11, 12.
Patent GB-358305-A (GB)
Title: Improvements in or relating to portable weighing machines for locomotives and other rail vehicles
IPC: G01G19/04
Filed: 1930-10-20
Abstract: 358,305. Weighing-apparatus. BROSCOMBE, H., 7, Willow Crescent, Halton, and KELLETT, A. F., 24, York Place, both in Leeds. Oct. 20, 1930, No. 31358. [Class 143.] Locomotives and vehicles, ascertaining distribution of weight on wheels of.-In a portable weighing machine of the balance arm type for locomotives and other rail vehicles, the supporting frame 11 of the machine is adapted to engage the inside of the rail and to overhang, the pit between the rails, whilst one end of the balance arm 18 is adapted to engage the flange of the wheel 22 to raise it when the other end of the balance arm is acted upon by a pump 23. As shown, two weighing machines are employed and the adjacent ends of the two frames 11 are coupled by a slotted link 30 to prevent them rising. When one machine only is employed, the end of the frame is prevented from rising by a pair of toggle arms engaging the opposite sides of the pit. The outer ends of the frames may rest upon the sill of the pit or upon a chair. The fulcrums 17 are adjustable horizontally and vertically to accommodate different conditions, and the pumps 23 of known type extend downwardly into the pit and are connected to the balance arms and frames by stirrups 28. The pump gauges 26 may be calibrated to indicate weights directly.
Patent GB-1440575-A (GB)
IPC: F02C9/00
Filed: 1972-07-05
Abstract: 1440575 Clutch control; positive clutches; shaft coupling LUCAS INDUSTRIES Ltd 27 June 1973 [5 July 1972] 31386/72 Headings F2L F2C and F2U [Also in Division F1] An actuator device for use in the fuel control of a gas turbine engine comprises a input member 14 clutchable through interengaging teeth 27 to an output member 19 and a further input member 13 clutchable to the output member 19 through a single dog tooth 28 engagable in a recess 29 of the member 13. The output member 19 is urged by a spring 26 towards engagement with input member 13, a ball 30 holding this clutch 28, 29 disengaged and clutch 27 engaged when it is engaged with the raised part of a fixed face cam 31. In operation, with a control lever 16 set for automatic engine control, a lever 15 of the input member 13 is positioned such that ball 31 holds clutch 27 engaged (levers 15 and 16 being interconnected) and the input is to input member 14 from an electric servomotor 25 via a worm engaging a worm-wheel 23, the output member 20 being connected to the engine fuel control valve. The servomotor 25 may maintain a speed of the engine set by lever 16 using a feedback to a controller 18. On failure of the automatic system the lever 16 is moved to a manual part of its range of movement which moves lever 15 and cam 31 so that ball 30 allows spring 26 to urge member 19 towards input member 13, clutch 27 remains partially engaged. Clutch 28, 29 is only engaged and clutch 27 disengaged when the tooth 28 registers with recess 29, i.e. when the position of lever 16 corresponds to the position of lever 20. Movement of lever 16 can now be transmitted directly to lever 20.
Patent GB-1387342-A (GB)
Title: Gas burners
IPC: F23Q9/00
Filed: 1972-07-05
Abstract: 1387342 Ignition apparatus BRITISH GAS CORP 6 July 1973 [5 July 1972] 31525/72 Headings F4F and F4T An aerated gas burner comprises a burner head 1 having an outwardly-flared upper portion 3, with a burner port or a series of ports 5 formed adjacent thereto and an ignition tube of short length supported in a wall of the burner head predominantly beneath the flared portion so that a gas-air mixture enters the tube upstream of the burner port(s), the tube having an air inlet 9 through which air is drawn from outside the burner head by the flow of gas-air mixture along the tube. A spark-ignition apparatus 14 may be located adjacent the outer end of tube 7, as shown, or within the tube downstream of the air inlet 9. The ports 5 are formed in a cap 4 covering the open end of the flared portion 3 of the head. A vertical crosslighting slot 15 may be provided to ensure ignition at the burner ports 5. The sparkignition apparatus may be replaced by an incandescent filament.
Patent GB-630555-A (GB)
Title: Improvements in packing apparatus
IPC: B65B25/06
Filed: 1945-11-22
Abstract: 630,555. Feeding sheets. GERSTENBERG, A. Nov. 22, 1945, No. 31534. Convention date. Aug. 17, 1942. [Class 100 (i)] [Also in Group XVII] In an apparatus for applying paper wrappers to articles such as moulded pats of butter (see Group XVII), the wrappers 91 are stacked on a plate 107 resting on the rod 108 of a piston 109 in a cylinder 110. When a wrapper is removed from the top of the stack, the rod of a piston 111, which rod contacts the top of the stack, is lowered to admit compressed air from a pipe 113 to the cylinder 110 so as to raise the plate 107, the top of the stack thus being maintained at a given level. Normally, a small amount of air is admitted to the cylinder and escapes through a narrow hole 115. The uppermost wrapper is removed from the stack and delivered to the wrapping station by suckers 86 running on rollers 87 on rails 88, the rollers 87 sinking into indentations 90 in the rails to bring the suckers into contact with the sheet. The suckers are carried on the rod 85 of a piston 84 reciprocated by the admission of compressed air to a cylinder 83 alternately through pipes 82 and 89.