baber/WOPTO huggingface dataset:
Patent GB-258920-A (GB)
Title: An improved arrangement of connections for the protection of power networks against overload
IPC: H02H7/30
Filed: 1925-04-03
Abstract: 258,920. Marks, E. C. R., (Voigt & Haeffner Akt.-Ges.). April 3, 1925. Cut-out arrangements; induction. relays.-In overload cut-out systems the overload relays on making contact cut in voltage-retarded relays having a time element depending on the voltage at the point to which they are connected so that only the switches directly adjacent to the fault are opened. Where there are a number of switches in a station they may be controlled by a common set of voltageretarded relays or by a single relay. In the distributing stations of a ring main system current or power directional relays are also provided so that only the switches directly supplying the fault current are opened. As shown in Fig. 2 having a circuitbreakers a in an incoming main conductor and b in an outgoing conductor of a ring main sub-station, overload relays c on operation close switches d, l the former setting voltageretarded relays f in operation and the latter preparing the operation of directional relays g. After running down the relays close an auxiliary switch h and the directional relays g so that the circuit-breakers are opened, the coil i being energized only if the current is in the outgoing direction. In the system shown in Fig. 1 the overload relays first cut in auxiliary relays e which on operation place the drop-relays t on voltage, the relays e completing their own maintaining circuits. In this case a further definite time-lag relay k is provided to deal with cases where on overload the reduction in voltage is so small that the drop-relays f cannot come into operation or where these relays fail to operate. the relay k being connected in parallel with the relays f. This relay further ensures after operation of any relay c with its corresponding auxiliary relay e that no further auxiliary relay may be closed during the operation of relay k as the lower contacts of this relay are in series with the contacts i of relays e. The construction of the voltage retarded relays employed is shown in Fig. 3 the coils ml - - m4 normally producing. a rotating field holding up the weighted contact arm q. On operation of the auxiliary relay p the arm falls retarded by the action of the coils m1, m3 on the relay disc, the action of the coils being suitably modified by series resistances o, n. The directional relay shown in Fig. 2 has a wattmeter element which moves the insulating plate u in front of one of the fixed contacts w so that on energization of the operating solenoid v the movable contact carried thereby can only engage the unshielded contact. For duplicate bus-bar systems the auxiliary relay p is arranged to prevent the dropping of the arm q in case the bus-bars to which the voltage-retarded relay is connected become dead. Specification 103,947 is referred to.
Patent GB-1236906-A (GB)
Title: Frequency discriminator circuit
Inventor: SPIRO HANS WILHELM
IPC: H03K5/22
Filed: 1969-02-19
Abstract: 1,236,906. Frequency switches. INTERNATIONAL BUSINESS MACHINES CORP. 19 Feb., 1969 [1 March, 1968], No. 8967/69. Heading H3A. A frequency discriminator circuit for producing an output signal of a first voltage level when signals above a predetermined frequency are applied to the circuit and an output signal of a second voltage level when signals below said predetermined frequency are applied to the circuit comprises a relaxation circuit T3, T4 having a predetermined relaxation time, a threshold circuit T5, T6 connected to the relaxation circuit to provide an output signal whenever the relaxation circuit relaxes past a predetermined voltage, a latch circuit T7, T8 to receive the output signals from the threshold circuit and reset means T2 to reset the latch every time signals above said predetermined frequency are applied to the circuit. Negativegoing input pulses at E are differentiated by capacitor C1 and the positive-going spike corresponding to the trailing edge of the input pulse turns transistor T4 on and transistor T3 off. Capacitor C2 charges through resistor R4 until T3 turns on again, after which the collector of transistor T4 rises as C2 charges through resistor R5 until the next input pulse. The amplitude of the resulting sawtooth thus produced at the collector of T4, Fig. 4, is inversely proportional to frequency and when it exceeds a threshold set by transistor T6 transistor T5 switches to "set" bi-stable circuit T7, T8. If the frequency of the input signal increases above a predetermined value, the amplitude of the sawtooth becomes too small to switch transistor T5, and the next input pulse is fed via transistor T2 to reset the bi-stable circuit.
Patent GB-1160315-A (GB)
Title: Discontinuous Laminate
IPC: B29C59/10
Filed: 1967-02-24
Abstract: 1,160,315. Plastics laminates. E. I. DU PONT DE NEMOURS & CO. 24 Feb., 1967 [26 Feb., 1966], No. 8995/67. Heading B5N. [Also in Divisions G1 and H1] A laminate comprises two sheets of monaxially oriented film which have their directions of orientation substantially at right angles, and which are bonded together only over a portion of their surface area, the balance of the area being unbonded to produce discontinuities in the lamination. The films, which may be of stretched ethylene-butene copolymer, may be unbonded along one set of parallel strips, or along two perpendicular sets of parallel strips, or in discrete square areas (see Fig. 1). The areas over which the films are bonded may be determined by applying a pattern of rubbery adhesive to these areas or by subjecting them to an electrical or chlorine treatment so enabling these areas to be caused to adhere at a temperature below the melting point of the film material. In one embodiment film 19 is subjected to a corona discharge over part of its area by passing it around a drum 14, the surface of which is formed by a patterned electrode 15, and which is parallel to an electrode 22 connected to a high voltage high frequency source 23. The film 19 is laminated by heated pressure rolls to a second film which has been subjected to electrical treatment over the whole of its surface.
Patent GB-984562-A (GB)
Title: Improvements in or relating to apparatus for separating sheets from a stack of sheets
IPC: B65H3/10
Filed: 1960-03-15
Abstract: 984,562. Feeding sheets. B. V. ROSSWALL. June 12, 1961 [March 15, 1960], No. 9160/60. Heading B6B. Apparatus for separating sheets such as bank notes from a stack 33 and feeding them to counting means comprises a rotatable drum 16 having one or more ports 19 in its periphery communicating with a source of suction, said port or ports being centrally disposed with respect to the width of the stack. Pile tables and supports.- The sheets are supported on edge on a table 27 movable along vertically adjustable, inclined rails 31. Alternatively, the table is formed with slides engaging slideways in the base 10. Springs 35 urge the table towards the drum. Arms 34, laterally adjustable on a back-plate 32, are provided to maintain the stack in position. Separators.-The drum is mounted on a rotary, tubular shaft 13 and has a radial passage communicating at its inner end with an aperture in the shaft 13 and at its outer end with a port 19 in a rubber pad flush with or projecting slightly above the periphery of the drum. The shaft has a stationary inner valve sleeve 20 furnished with an arcuate slot of about 180 degrees extent. Said slot co-operates with the aperture in the shaft. The sleeve is connected to a source of suction. One end of the sleeve projects beyond the side wall 11 and is fixed to a slotted plate 22, adjustable in position by means of a clamping member 25, whereby the angular position of the sleeve may be varied. A second suction drum 16a rotatable in the opposite sense is provided, so that if double feed occurs, the second sheet is separated from the first drum and passed via a shoot 59 to a stack 60. The drum may have more than one port 19 and two such drums may be spaced a short distance on the shaft 13. A U-shaped member 43 adjustable vertically and horizontally in block 36 is provided with arms 46 to assist in preventing double feed.
Patent GB-194564-A (GB)
Title: Improved apparatus or means for lifting, hoisting and transporting goods
IPC: B66D1/16
Filed: 1922-03-30
Abstract: 194,564. Clayden, A. March 30, 1922. Jib cranes.-Comprises a modified construction of hoist of the type described in Specifications 135,880 and 167,509, [Class 78 (v), Winding and paying-out apparatus &c.]. In the present construction a jib j is rotatable round a tubular, lattice, or solid standard d on two collars f fitted with ball-bearings. The standard is carried by a portable, fixed, or elevated platform a. A turret r at the head of the standard carries guide pulleys for the winding-ropes and a toothed member t adapted to be engaged by a spring pawl on the jib to lock the latter against rotation. The pawl is operated by a cranked rod connected to the control rope n. The load-engaging means may comprise lifting-dogs of the type described in Specification 154,480 or 169,752. In operation, a pull maintained on the control rope n lifts a clutchoperating lever against the action of a weight. Release of the control rope de-clutches the winding-drum, applies the brake, and releases the locking-means to allow the jib to be rotated.
Patent GB-168834-A (GB)
Title: Improvements in the electric drive of submarine boats
IPC: B63H23/24
Filed: 1917-06-27
Abstract: 168,834. Soc. Anon. Italiana G. Ansaldo & Co. June 27, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Systems for continuous-current motors only.- In electric propelling systems for submarines, two motors d<1>, e<1> of different power are mounted on each propeller shaft and current is supplied frcm two equal batteries a<1>, a<2>. For low speeds, the low-powered motor e<1> is supplied from one of the batteries; at intermediate speeds the armature of the higher powered motor d<1> is connected across both batteries, while for top speed both armatures are connected across the two batteries. The fields are independently excited and have regulating rheostats. The switching may be effected by a single lever or handwheel, and may ba through servomotors. Reversing switches for the armatures or fields are provided.
Patent GB-725198-A (GB)
Title: Improved self-unloading bin
IPC: B65G53/22
Filed: 1953-04-17
Abstract: 725,198. Pneumatic conveyers. FULLER CO. April 17, 1953 [May 7, 1952], No. 9407/53. Class 78 (1). Finely-divided material, e.g. flour, stored in a bin 1, Fig. 1, is directed to a discharge aperture 12 in its side by the inclined gaspermeable bottom 6 and after passing therethrough is directed by a conduit 18, which also has a gas permeable bottom, into a pneumatic conveyer 17. The bottom 6 is inclined to the horizontal at an angle of from four to fifteen degrees and is connected to the vertical side walls 3 by inclined walls 8, 9, Fig. 2, having short vertical sections 8<SP>1</SP>, 9<SP>1</SP>. The inclination of the walls 8, 9 is greater than the angle of repose of the unaerated material. The lower part 10 of the rear wall 5 of the bin is inclined so that it makes an angle of not greater than ninety degrees with the bottom 6. The lower part 11 of the front wall 4 is inclined similarly. The bottom 6 is preferably of canvas of low gas permeability and forms the top of a plenum chamber 13 into which gas is passed through a pipe 15. The conduit 18 converges to a section 19 which contains a gate valve 24. This valve can be adjusted manually to vary the depth of material. The plenum chambers 22, 21a below the gas permeable bottoms of the parts 18, 19 are separated by a wall 23. The chamber 22 forms a continuation of the chamber 13. The section 19 is connected to the conveyer conduit 17 by a casing 27 which contains a cut-off gate 28. This gate is actuated by fluid pressure and is closed automatically when pressure in the conduit 17 falls below a predetermined pressure on account of an excess of material therein.
Patent GB-167523-A (GB)
Title: Improvements in signalling devices for road vehicles
IPC: B60Q1/34
Filed: 1920-04-01
Abstract: 167,523. Bradley, H. E. April 1, 1920. Order apparatus. - A stopping and turning signalling-device for road vehicles consists of a casing 14, Fig. 5, the top and sides of which have large openings 20 normally covered by semaphore wings 21 which are swung outwards on hinges 23 to display the required indication " stop on the upper wing and arrows for turning to the right or left on the side wings. Each wing is swung outwards by means of a link 26 and a lever 27 pivoted to the core 32 of an electromagnet 33, and having the armature 34 of the electromagnet fastened to it. The wings are normally kept closed by spring-pressed plungers 35. The casing contains a lamp 17 which illuminates a number-plate 36 fastened below the casing ,and any signal wing that is swung outwards; its rear end is closed by a lens 16 to serve as a tail light. A partition 19 in the casing serves as a reflector. The switch mechanism for operating the wings, Fig. 7, is fixed to the steering-wheel casing 12. A lever 46 carrying a contact and a projecting knob 54 may be moved on to any one of three contacts 43, 42, 44. The scheme of circuits is shown in Fig. 3. A lamp 50 is provided in front of the driver which is lit when the contacts 63, 64 are closed by levers 27, and so indicates to the operator that one of the signal wings has been swung outwards.
Patent GB-375785-A (GB)
Title: Improvements in or relating to television systems
IPC: H04N7/14
Filed: 1931-03-28
Abstract: 375,785. Television. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Parker, R. D. ; 1309, East 22nd Street, Brooklyn, New York, U.S.A.) March 28, 1931, No. 9470. Convention date, March 29, 1930. [Class 40 (iii).] In a combined telephone and two-way television system in which an observer 4 is enclosed in a compartment associated with transmitting and receiving scanning discs 2, 8, the telephone instruments, viz. a microphone 27 and a loudspeaker 26, are placed out of range of the scanning discs. The object is scanned by light from a source 1 passing through an apertured disc 2, a lens 50, directing prism 5 and a blue filter 6, which prevents the object being dazzled. Light-sensitive cells 18, connected in parallel to an amplifier 40, are located in the walls of the compartment. The observer 4 sees the received image through a lens 9, adjustable vertically. The microphone 27 and loudspeaker 26 are mounted behind a screen 22 in the same plane and with their axes parallel to prevent interference. The compartment is preferably built so as to damp the sounds from the loud-speaker. The loud-speaker is located in the plane of the image and a screen 34 prevents the noise of the motors driving the scanning discs reaching the microphone. Specification 375,422 is referred to.
Patent GB-595851-A (GB)
Title: Improvements in or relating to devices for adjusting a member controlling a characteristic of an electric oscillating circuit
IPC: H01F21/04
Filed: 1945-04-16
Abstract: 595,851. Cams. MEFINA SOC. ANON. April 16, 1945, No. 9479. Convention date, May 5, 1944. [Class 80(iii)] [Also in Group XL] A transmission device interposed between an operating member and a movable element (e.g. a condenser) of a radio circuit, comprises a conical helical cam of which either the axial or the radial pitch varies progressively, the cam being engaged by a disk mounted on a radial axis and capable of sliding and rotary movement thereon. As shown, the cam 41 is fixed on a shaft 17 and is rotated by a driving-pulley 46 between limits determined by a pin 48 engaging stops 47. The condenser &c. is adjusted against spring pressure by the axial movement of the shaft 17 caused by the cam bearing against a disk 43 which is mounted on a radial axis 44 fixed in the casing and is free to rotate and to slide under the control of a spring 45. Instead of bearing against the radial face of the cam, the disk may enter a channel in that face. In a modification, the cam 41 is secured to the casing, and axis 44 of the disk 43 is secured to the operating shaft 17. The Specification as open to inspection under Sect. 91 comprises other forms of transmission mechanism. In Fig. 1 (Cancelled) a rod 17 carrying movable cylindrical condenser plates 19 is moved longitudinally against a spring 26 by a helical cam 21 rotated by a cord 23 and pulleys 22, 24, the latter being secured to a control knob 27. In another modification, Figs. 3-5 (Cancelled) not shown, the pulley rim 22 is itself of flat spiral form and the movable condenser plates are formed as coaxial half-cylinders fixed to the pulley shaft and interleaved with similar stationary plates. In Fig. 6 (Cancelled) the driving cord is wrapt on a helical groove on a conical drum 35, and rotation of the shaft 17 causes an axial traverse by virtue of a screw thereon engaging a fixed pin 35. The drum 36 may be circular and the screw of progressive pitch. This subject-matter does not appear in the Specification as accepted.
Patent GB-567546-A (GB)
Title: Improvements in and relating to gas turbine arrangements
IPC: F01D5/08
Filed: 1941-07-25
Abstract: 567,546. Gas turbines, BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). July 25, 1941, No. 9482. [Class 110 (iii)] A gas turbine wheel 10 on an aircraft delivers its exhaust in a direction transverse to the slip-stream and the forward portion of the hot gases is kept from being carried over the wheel surface by a dished cover 23. An air conduit 24 takes in air at 21 and directs it on to the trailing portion of the turbine wheel. The cover 23 and conduit 24 are supported by brackets 29, 30. The conduit 24 may have two inlets disposed on either side of the gas inlet 19. The gas inlet may have a controlled byepass escape. The whole may be covered with a suitable fairing and may be supported at three points asymmetrically arranged. The dished cover may be double-walled with cooling air admitted to its interior.
Patent GB-498502-A (GB)
Title: Improvements in or relating to a method of building construction to effect insulation from ground moisture
IPC: E04B1/64
Filed: 1937-04-03
Abstract: 498,502. Floors; walls. GUNS, L., and PEJCHAR, F. April 3, 1937, No. 9525. Void. Convention date, July 6, 1936. [Class 20 (iv)] A floor construction comprises iron girders 2 supported upon, and extending beyond the outer face of, a foundation wall 1, and hollow bricks 3 carried by the girders 2 in such a manner as to leave a gap corresponding to the thickness of the lower flanges of the girders 2 between the bricks 3 and the foundation wall 1. The bricks 3 are also supported partially upon iron members 9 to render that part of the floor immediately above the foundation wall 1 capable of carrying a superposed masonry wall 4. Concrete 8 is cast upon the bricks 3, and the facing-layer 6 provided on the masonry wall 4 is insulated from the facing layer 5 provided on the foundation wall by an insulating strip 7 of mortar &c.
Patent GB-1081594-A (GB)
Title: Amplitude expandor
IPC: H03F1/30
Filed: 1966-03-04
Abstract: 1,081,594. Expanders. INTERNATIONAL STANDARD ELECTRIC CORPORATION. March 4, 1966 [March 10, 1965], No. 9542/66. Headings H3T and H4R. Expander for a telecommunication system, Fig. 1, includes a pair of transistors Trs 2 and 3 connectedin push pull to amplify the signals from the emitter circuit of transistor Trs 1 in which the gain of the transistors Trs 2 and 3 is controlled by varying their emitter base bias with a signal derived by rectification, in diode G1r, of the signal at the collector of transistor Trs 1. Resistor R1 may comprise a network, Fig. 2, including thermistor NTC which provides compensation for the variation with temperature of the gain of transistors Trs 2 and 3.
Patent GB-920795-A (GB)
Title: Improvements in or relating to nuclear reactors and fuel alloys therefor
IPC: G21C3/52
Filed: 1961-03-16
Abstract: 920,795. Nuclear fuel. UNITED STATES ATOMIC ENERGY COMMISSION. March 16, 1961 [April 25, 1960], No. 9631/61. Class 39 (4). A nuclear fuel alloy consists of 8 to 12 atomic per cent iron, about 2 atomic per cent carbon, and the balance plutonium. The alloy is used in molten form in a tantalum carbide-coated tantalum container. If cracks occur in the coating, the carbon in the alloy forms tantalum carbide with the tantalum of the container, so that the coating is self-healing. The coating may be formed by heating the alloy in an uncoated tantalum container. The alloy may be prepared by heating plutonium and iron in a graphite mould under vacuum, or from plutonium, iron and iron carbide. Specification 860,161 is referred to.
Patent GB-610154-A (GB)
Title: Spark plugs and methods of making the same
IPC: H01T13/34
Filed: 1946-03-29
Abstract: 610,154. Casting composite articles. GENERAL MOTORS CORPORATION. March 29, 1946, No. 9710. Convention date, April 2, 1945. [Class 83 (i)] [Also in Group XXVII] A sparking plug includes a tubular central electrode which is closed at its lower exposed end and has a shank of smaller diameter than the bore of the insulator and the space between the shank and said bore and the interior of the electrode are filled with a good heat conducting material such as silver. As shown, a tubular electrode 34 of nickel, tungsten, stainless steel or other heat and corrosion - resistant material has a shank of smaller diameter than a bore of the insulator 20. The electrode is held in the insulator by a material 54 of good thermal conductivity which is preferably silver, but may be copper or other material, and this material fills the interior of the electrode and the annular space between the shank and the bore. An annular knurl on the end of the electrode prevents the silver &c. flowing out of the annular space. A coil 52 of nickel positioned above the electrode is held in place by the silver. The electrode is drilled at 48 to provide openings so that the silver &c. may pass from the inside of the electrode to the annular space. Silver is preferably cast in place as follows. With the electrode in place in the insulator, silver in the form of a wire or rod of smaller diameter than the bore of the electrode is introduced into the bore and the coil 52 inserted in place. The insulator is then placed in a furnace and heated until the silver becomes molten. The whole assembly is then centrifuged with the electrode tip extending horizontally outward so that the silver fills the electrode bore and passes into the annular space. Specification 492,315, [Group XXVII], is referred to.
Patent GB-1221069-A (GB)
Title: A vehicle headlamp comprising an adjustable reflector
Inventor: CIBIE PIERRE
IPC: F21V17/00
Filed: 1968-02-28
Abstract: 1,221,069. Vehicle headlamps. P. CIBIE. 28 Feb., 1968 [3 March, 1967], No. 9714/68. Heading F4R. The adjustable reflector 4 of a vehicle headlamp is mounted within the lamp casing 3 in such a manner that the axis of the beam emitted by the reflector always passes through a fixed point 0 on or adjacent the lens. Preferably, the reflector is provided with abutments 4a which move on a spherical or cylindrical guiding surface 3a on the casing under the control of an adjusting screw 6. Alternatively, the abutments may be formed on the casing and the guiding surfaces constituted by fins on the reflector.