baber/WOPTO huggingface dataset:
Patent GB-1323020-A (GB)
Title: Process for the preparation of 1-substituted 4-amino-3-pyrrolin- 2-ones
IPC: C07D207/38
Filed: 1971-12-31
Abstract: 1323020 Pyrrolinones LONZA Ltd 31 Dec 1971 [25 March 1971] 60968/71 Heading C2C Pyrrolinones (or their hydrohalide salts) of the general formula in which R 1  and R 2 , which may be the same or different are H atoms or aryl, substituted aryl or heterocyclic radicals, or R 1  may also be a straight-chained or branched C 1-12  alkyl radical, are prepared by reacting a γ-haloacetoacetamide of the general formula in which R 2  has the same meaning as above and X is a halogen atom, with an amine of formula R 1 NH 2 , in which R 1  has the same meaning as above, at a temperature of 70-110‹ C., in the presence of an inert organic solvent able to dissolve the reaction components. The free pyrrolinone may be liberated from its hydrohalide salt by treatment with an alkaline reagent.
Patent GB-1241370-A (GB)
Title: Stopper device for a camera shutter
Inventor: TODA KATUHIKO
IPC: G03B19/18
Filed: 1969-12-24
Abstract: 1,241,370. Cinematographic apparatus. CANON K.K. Dec. 24, 1969, No.62874/69. Heading G2E. A device for stopping an electrically operated shutter of, e.g., a cine camera, in the closed position and for holding the shutter securely closed, comprises a rotatable disc 1 to the shaft of which the shutter is directly connected, the disc having a notch 4 and carrying a stopper pin 3; an operating arm 11 having a first detent 12 engaging the notch 4, the arm 11 closing a switch 16 in the shutter driving circuit whenever the detent 12 is out of engagement with the notch; a stopper arm 9 having a second detent 10 engaging the pin 3; and a release arm 6 for moving the detents 10, 12 out of engagement with the members 3, 4. As shown, the arms 6, 9 are joined, but in a second embodiment Figs.6-11 (not shown), they are not. When the release arm 6 is pressed in the direction a, the arms 9, 11 are raised so that the switch 16 is closed and this disc 1 is free to rotate. At the end of an exposure shot the arm 6 is returned to the position shown under spring action, the arm 9 also returns to the position shown, but does not engage the pin 3, and the arm 11 engages the circumference of the disc 2 which continues to rotate until the notch 4 comes beneath the detent 12, thus allowing the arm 11 to open the switch 16. Simultaneously the pin 3 abuts the detent 10, thus stopping the disc 2, while the detent 12 and notch 4 prevent rebound.
Patent GB-646974-A (GB)
Abstract: 646,974. Boxes. FARROW, E. S. FELLOWES-, and VISUAL EDUCATION, Ltd. June 11, 1948, No. 15779. [Class 18] A box formed to simulate a book has three transverse partitions 4 separating removable alloy containers 6 holding short lengths of film.
Patent GB-697414-A (GB)
Abstract: 697,414. Linear-dimension gauges measures of length. SOC. ANON DES CHANTIERS ET ATELIERS DE CONSTRUCTION DE LYON. July 4, 1951, No. 15848/51. Class 106 (ii). [Also in Group XXX] A device for measuring the two end diameters and the length of pieces of timber comprises a trough into which each piece of timber falls, whereby a pair of pointer arms 26, Fig. 1, near the ends of the piece are lifted up over a scale to give the diameter, while to measure the length a stop 28, Fig. 2, on an endless rope 27 is moved into contact with one end of the piece, the rope being graduated from the stop so that the length can be read off at the other end. The trough consists of spaced pairs of fixed and movable arms 23, 25 respectively, arms 25 being locked during measurement and unlocked after measurement to release the piece.
Patent GB-746830-A (GB)
Abstract: 746,830. Pneumatic despatch apparatus. LAMSON ENGINEERING CO., Ltd. April 14, 1954 [Dec. 3, 1952], No. 30699/52. Class 78 (1). In pneumatic conveyer systems in which articles, e.g. tickets, are drawn through the system 10 by suction to a discharge point normally closed by a flap 38 which, upon interruption of the air flow by the closure of a valve 26 in the system, opens to release the article, the valve and the flap are controlled by a common operating means comprising a solenoid 12 having a core 32 which at one end is connected to the valve and at the opposite end co-operates with the flap in such a way that upon energization of the solenoid, the core moves the valve to the open position to allow air to flow through the system and moves the flap into sealing engagement with the terminal compartment. A spring 28 returns the valve to the closed position when the solenoid is deenergized. An arm 39 secured to the flap carries a roller 34 which is disposed in the path of the end of the core of the solenoid. The compartment 8, into which the tickets fall, communicates with the compartment 9 housing the valve and solenoid by a baffle-plate assembly comprising a channel 22 provided with airflow apertures 23. Air passes out through the tube 25.
Patent GB-2024180-A (GB)
Title: Catalytic oxidation of SO2 to SO3
IPC: C01B17/765
Filed: 1978-06-30
Abstract: In a process for the production of sulphuric acid by burning sulphur in air and catalytically oxidising the SO2 in the resulting gases to SO3 by passing a mixture of SO2 and oxygen through a plurality of catalytic reaction layers at elevated temperature to effect a two- stage conversion whereof the first stage includes a plurality of reaction layers, separating by interstage absorption the SO3 in the gaseous product of the first stage, recycling the gaseous residue of the interstage absorption to the second stage of the conversion, and separating by final absorption the SO3 in the gaseous product of the second stage, the gaseous residue of the interstage absorption is preheated in passing to the second conversion stage by a heat- exchanging relationship with, successively, the gaseous product of the last layer of the first conversion stage and the gaseous product of the penultimate layer of the first conversion stage, and the gaseous product of the first stage is cooled in passing to the interstage absorption by a heat-exchanging relationship with successively the gaseous residue passing to the second conversion stage and air to be used for sulphur combustion.
Patent GB-2001636-A (GB)
Title: Prostaglandin amides
IPC: C07C235/74
Filed: 1978-07-21
Abstract: Pharmaceutically useful compounds are amido derivatives of known prostaglandins having a 6- oxo and a 9 alpha -hydroxy or hydroxymethyl group, and 6,9-lactones thereof, and a 6-hydroxy, 5-halo and 5,6-didehydro analogues of the lactones.
Patent GB-2026080-A (GB)
Title: Jam cleat with movable clamping jaws
IPC: F16G11/10
Filed: 1978-07-24
Abstract: A jam cleat, particularly for sailboats, comprises two movable clamping jaws 13 which between them form a clamping gap 23. The jaws 13 have one or more rollers 17 which cooperate with the sheet, the rollers having a toothed formation and an axially symmetrical addendum envelope. The rollers 17 are freely rotatably mounted on spindles 16 which extend parallel to the plane of movement of the clamping jaws. The sheet is pressed into the clamping gap 23 by rotating and separating the rollers 17, and it is held in the gap in mating relationship therewith and in a positively mechanical manner, but can be readily released therefrom. Under the usual load, the sheet is locked in the direction of pull 22, and in the opposite direction the sheet can be easily retightened. An additional effect is that of reducing or avoiding damage to the sheet. A plurality of pairs of rollers may also be present. An adjustable supporting surface and a likewise adjustable guide element for the sheet are provided as possible accessories. <IMAGE>
Patent GB-2003723-A (GB)
Title: Kettles
IPC: A47J27/212
Filed: 1978-09-12
Abstract: A whistling kettle is provided with a water level indicator comprising a glass tube 4, the upper, closed end portion of which projects upwardly from the body of the kettle to expose to view an indicator 7 attached to a float 5. A calibrated scale 8 is arranged alongside the exposed upper portion of the tube. The tube is open at its lower end to the interior of the kettle, so that the float (and indicator) are positioned in the tube in accordance with the water level and the tube includes a vent 9. <IMAGE>
Patent GB-2006833-A (GB)
Title: Corrosion Resistant Screws and Methods of Making Them
IPC: C23C8/26
Filed: 1978-09-26
Abstract: A method of making a screw of corrosion-resistant steel and having hardened entering end portions including the steps of forming a screw of a suitable corrosion-resistant steel, forming on that part of the formed screw which is not to be hardened a substantially gas-impervious metallic layer, and subjecting the screw to a gas capable of reacting with the steel to produce a case hardening of the steel at that part of the screw which is to be hardened.
Patent GB-2030105-A (GB)
Title: Level-luffing crane
IPC: B66C23/12
Filed: 1978-09-27
Abstract: A crane assembly for level luffing has a base support 1, 2 from which a tower 4 extends upwardly. A jib 6 is pivotally mounted on the tower 4 for derricking movement and has a first part 7 extending forwardly of the pivotal mounting 5 and a second part 8 extending rearwardly of the pivotal mounting 5. Derricking of the jib structure is by lines 13 reeved between the second part 8 and the base support 2 but mechanical or hydraulic derricking is possible. A hoist line 19 from a hoist winch drum 20 is reeved to provide a level luffing system through a first hoist sheave 21 mounted on the base support and a second hoist sheave 22 mounted on the second part 8 of the jib prior to extending by way of a jib head sheave 18 on the first part 7 to a hoist block. To reduce bending moments in the tower 4 the falls in the hoist and derricking lines 13 and 19 between the base support 2 and the second jib part 8 are preferably approximately parallel to the tower 4. Two hoist lines can be provided, both having the level luffing facility, for grab operations. <IMAGE>
Patent GB-2013724-A (GB)
Title: Method for sputtering cadmium stannate films
IPC: C23C14/08
Filed: 1978-10-18
Abstract: Cadmium stannate films are sputtered in an oxygen plasma onto a substrate, using a target of cadmium- tin metal alloy having a mole ratio cadmium to tin of 1.7:1 to 2.5:1. Either RF or DC sputtering may be employed and an inert gas may be used with the oxygen. The substrates may be silica or glass.
Patent GB-2009660-A (GB)
Title: Pipe Moulding Apparatus
IPC: B28B21/82
Filed: 1978-11-28
Abstract: Pipe moulding apparatus for moulding a pipe having an internal socket at one end, the apparatus including a tubular mould 11 for moulding the main pipe body, an outer mould end member 35 formed with a spherically curved inner annular surface 24 extending from one end of the tubular mould, and an inner mould end member 15 co-acting with the outer mould end member to produce a generally cylindrical socket at said one end of the pipe body. The inner member 15 is adjustable in orientation while keeping its outer rim in contact with the spherical surface 24, to mould the socket at any desired angle to the pipe axis. <IMAGE>
Patent GB-2019549-A (GB)
Title: Gas-fired space heaters
IPC: F24H3/06
Filed: 1978-11-30
Abstract: A gas-fired space heater comprises a fuel gas burner assembly (13), a fuel gas inlet (36) to the burner, a supply of combustion air (72) to the burner to generate hot combustion gases, a heat exchanger (15) for directing the combustion gases to a flue gas outlet by way of the heat exchanger and for means (18) for passing space air in heat exchange relationship with the combustion gases to extract heat from these gases. The burner assembly includes an orifice in the gas inlet of preselected restricted size to provide a reduced amount of fuel gas to the burner that is less than that supplied without the restriction and means for restricting flow of combustion gases to the heat exchanger at a rate less than that which would occur without the means for restricting so as to reduce the amount of normal secondary air flowing to the burner so that the reduction of gas input to the burner and reduction of secondary air to the burner reduces the heat loss expelled with the flue gas and raises the efficiency of the space heater by thereby increasing the ratio of heat exchange surface, which is in the illustrated embodiment kept constant, to the heat input to the heater, which in the illustrated embodiment is reduced. <IMAGE>
Patent GB-2041031-A (GB)
Title: Board
IPC: C04B28/04
Filed: 1978-12-15
Abstract: A process for producing a fibre- reinforced product from an aqueous slurry by forming a layer on the surface of a rotary sieve, from which the layer is subsequently removed, includes the step of forming the aqueous slurry from water, an inorganic binder and from 1 DIVIDED 2 to 20% by weight of reinforcing fibres 2 (referred to the finished product) together with a minor proportion of auxiliary non- asbestos fibres having a Canadian Standard Freeness in the range 20 to 300 DEG , the reinforcing fibres comprising a non-vitreous non- asbestos reinforcing staple fibres, in particular carbon fibres.
Patent GB-2011411-A (GB)
Title: Nitrogen-Containing Compounds, Their Preparation and Pharmaceutical Compositions Containing Them
IPC: C07D471/04
Filed: 1978-12-28
Abstract: Compounds of the general formula   <IMAGE> where R-R<4> are hydrogen or various organic groups and n is 0 or 1 are of interest as chemical intermediates; some also exhibit a number of pharmacological activities. The compounds may be made by hydrolysis of corresponding amino or substituted amino compounds to introduce the -OR group. They can be formulated for pharmaceutical use in conventional manner.
Patent GB-2014388-A (GB)
Title: Transistor bridge circuit
IPC: H03K17/66
Filed: 1979-01-17
Abstract: A bipolar transistor circuit to drive an associated load 14, such as a stepping motor, possibly by a high current flow thereto, comprises a bridge circuit, with the load to be connected between the mid-points of two pairs of series connected bipolar transistors T2, T3, and T4, T5. The bases of transistors T3 and T4 are respectively connected between the components of series combinations each of a bipolar transistor and a resistor T1, R1, and T6, R2, and the four series combinations are each connected between supply rails 10 and 11. The bases of transistors T1, T3, T5 and T6 are connected to an associated pulse source or sources 12, 13, 15 and 16 capable of driving ON and OFF the relevant transistors. With three different possible combinations of source outputs, current flows in either of the two directions within the transistor circuit and the load, or the load is isolated. <IMAGE>
Patent GB-2024031-A (GB)
Title: Replaceable filter cartridge
IPC: B01D27/10
Filed: 1979-04-11
Abstract: Hydraulic shock is alleviated in a replaceable filter cartridge by providing at least one deformable gas- filled pocket 14 therein. <IMAGE>
Patent GB-2022013-A (GB)
Title: Correction Medium for Image Recording
IPC: C09D9/00
Filed: 1979-04-27
Abstract: A correction medium for imaging materials which are based on a chemical colour reaction between an initial dye product and Lewis acid, which comprises a dispersion in a liquid dispersing agent of a binder and a reducing agent. The correction medium ensure decolourisation of e.g. a wrongly typed character and enables re-typing in the same position.
Patent GB-2048508-A (GB)
Title: Retroreflective marking tape
IPC: E01F9/08
Filed: 1979-05-02
Abstract: A retroreflective marking material comprises a sheet having at least some light-transmitting portions, a light- refracting surface on one side, and a plurality of trihedral light-reflecting units 35a, b of three mutually perpendicular facets on the other side adapted to be adhered to a working site 10 by adhesive 15. The light-reflecting units are oriented to reflect light having relatively high angles of incidence with respect to the sheet. The marking material may be used as a tape for marking roads. The sheet or tape may have light-receptors 34 which rise above the tape and are spaced apart along one direction of the tape, and the trihedral light-reflecting units are substantially opposite the light-receptors. Preferably, the light-reflecting units have the shape of a triangular-based pyramid, and the marking material retroreflects light in two opposite directions. <IMAGE>
Patent GB-2050022-A (GB)
Title: Intruder Alarm
IPC: G08B13/16
Filed: 1979-05-02
Abstract: An intruder or breaking glass alarm has a transmitter 102 to transmit ultrasonic wave burst into a detection zone. A receiver 103 converts the reflected components, from objects in the zone, into analogue signals which are digitised 108 and stored in a microprocessor system 115. A self-adaptive variable gain circuit progressively increases the gain of an amplifier 106 in the receiver initially to provide digital signals representing an optimum reference reflection characteristic. These signals are stored in a RAM. Then, on each subsequent burst of transmitted energy, the reflected components are also stored in the RAM. For comparison with the reference characteristics. If more than a predetermined number of mismatches occur in a sequence of comparisons, an alarm is given. The microprocessor systems may be programmed not to give an alarm for mismatched signals occuring within a given time band or bands, thereby allowing personnel to work in an authorised area. <IMAGE>
Patent GB-2034088-A (GB)
Title: A method and a device for identifying chemical samples
IPC: G01N35/00
Filed: 1979-10-10
Abstract: Chemical samples to be transferred between first and second receptacle magazines (1, 2) are identified by providing the first magazine (1) with a visual and machine readable coding (6), providing the second magazine (2) with a settable visual and machine readable coding (6), setting the coding of the second magazine to correspond to that of the first magazine and then machine checking the codings for correspondence prior to transfer. <IMAGE>
Patent GB-2034847-A (GB)
Title: Lockable Nut
IPC: H01R13/74
Filed: 1979-10-25
Abstract: A lockable nut, especially for use in an electrical connector, has a groove (46) extending across one end face of the body of the nut (30), so that when the grooved face of the nut is positioned against a mounting panel, a hole is formed through which a safety wire may be passed for securement to the panel. The groove (46) does not intersect the central opening of the nut. The groove (46) may be curved. <IMAGE>
Patent GB-2066935-A (GB)
Title: Acetylene transporter
IPC: F17C13/08
Filed: 1979-11-29
Abstract: A vehicle for transporting acetylene having a plurality of pressurizable cylinders permanently mounted thereon, provided with common inlet and outlet conduits located directly on the vehicle. <IMAGE>
Patent GB-2046026-A (GB)
Title: Method and apparatus for the corona discharge treatment of webs, and webs treated therewith
IPC: H01T19/00
Filed: 1980-01-25
Abstract: Apparatus for the corona discharge treatment of a travelling web 4 such as a plastics or cellulose film comprises a pair of spaced conductors 2, 3 with an associated alternating voltage power supply 1 and set at such a distance apart that the possibility of spark or arc discharge is avoided, at least one conductor 2 having mounted thereto an electrode member 5 extending towards the other conductor to define a gap 7 across which a corona discharge can be formed. The electrode member 5 consists of a dielectric material having a dielectric constant of at least 8, preferably at least 80, and may consist of a plate with an edge directed towards the other conductor. Preferably the plate is formed of one or more ceramic tiles based upon a titanium and/or zirconium compound. In another form the electrode member consists of a row of rods or two or more rows of spaced rods in staggered relationship. <IMAGE>
Patent GB-2072966-A (GB)
Title: Battery discharge warning system
IPC: B60R16/03
Filed: 1980-03-10
Abstract: A battery discharge warning system particularly suitable for use in vehicles to warn of an electrical load on the system when the charging current is not operative, comprises a first set of inputs (1-6) for monitoring the condition of load circuits; a second input (7) for monitoring the condition of the ignition circuit, and a latch circuit (G2, I1, D3) arranged to latch to an "ON" condition only when both inputs are "ON", so as to give rise to a warning actuating signal which is arranged to be inhibited as long as there is an "ON" signal at the second input (7), the latch circuit being arranged to unlatch only when an "OFF" signal appears at the first input. <IMAGE>
Patent GB-2056818-A (GB)
Title: Traffic route testing in a telecommunications network
IPC: H04M3/36
Filed: 1980-07-08
Abstract: In a telecommunications network, for traffic route testing, there is a central unit per network section (which section may include several exchanges) and which controls a number of remote units distributed over the network section at the exchanges thereof by transmitting to them all data needed for a sequence of test calls via a switched line. The remote units each stores in its memory the data sent from the central unit, and they each perform their own test calls independently under control of the stored data and store the test results in their memories. These results are periodically requested by the central unit. A data connection between the central unit and one of the remote units is needed only during the data input and the request of results, and the remote units work independently during the substantially longer test phase. Hence only a small number of line circuits and modems are needed in the central unit, and nevertheless a large number of simultaneous test calls can be performed in a network section. The central control can be handled by a processor of small capacity since it does not perform any real- time work.
Patent GB-2085661-A (GB)
Title: Compact core for an inductive device
IPC: H01F27/255
Filed: 1980-10-08
Abstract: A tripod shell-type core 11, 12 for a transformer or transducer has a central leg 11c, 12c which is trapezoidal or triangular in cross-section. The side legs 11a, 11b, 12a, 12b, protrude above the central leg and are triangular in cross-section having inclined surfaces opposing the angularly inclined surfaces of the central leg. For a given amount of iron in the legs, this gives a better utilisation of space when a coil 14 on a trapezoidal or triangular bobbin 13 is inserted around the central leg, and results in a more compact transformer or transducer. The core may be of ferrite material, and the opposing surfaces may be curved (Fig. 8 not shown).   <IMAGE>
Patent GB-2067476-A (GB)
Title: Combined scissors and pencil sharpener
IPC: B43L23/00
Filed: 1981-01-09
Abstract: A pair of scissors which are suitable for use by schoolchildren are moulded entirely from a plastics material so that a conical cavity may be formed in one of the bows which opens towards the rear of the scissors and is provided with an adjacent seat area upon which a pencil sharpener blade may be fixed, thus forming an integral pencil sharpener. The blades of the scissors comprise a pair of opposed jaws which are moulded in the same moulding as the shanks and bows of the scissors and which are each provided with a recess into which a cutting blade is fitted. The cutting blade is formed separately by stamping from a plastics material at 90 DEG  to give the cutting edge. The jaws are so formed that the cutting blades are concealed, when the jaws are closed, to the extent that only a thin strip of the reverse edge to the cutting edge is exposed. The cutting blade may have a curved surface whose radius of curvature corresponds to the bevelled surface of conventional scissors. <IMAGE>