baber/WOPTO huggingface dataset:
Patent GB-2015559-A (GB)
Title: Detergent bars
IPC: C11D1/12
Filed: 1979-02-28
Abstract: Detergent bars containing 20 to 70% by weight of acyl isethionates are improved in slip properties by adding an ethoxylated sorbitan ester. Preferably the amount of ester is from 5% to 30% by weight of the bar.
Patent GB-2016671-A (GB)
Title: Vehicle Coloured Light Units
IPC: F21V9/08
Filed: 1979-03-05
Abstract: A vehicle lamp unit for giving a coloured light, e.g. a direction indicator lamp, has the coloration produced by a colour filter (4) located behind an apertured mask (6) so that the colouration is largely hidden when the lamp is switched off. The filter and mask surround the illumination source (1) in the manner of a hood. The filter is formed with a series of part- cylindrical lenses (7) that have lines of focus (8) in the region of respective elongate apertures (5) of the mask to prevent illumination loss due to the mask. The lamp unit has a parabolic reflector (9) or a prism disc for the light emergent from the mask to produce a parallel beam that is dispersed in the required pattern by the cover glass (10) of the lamp unit. <IMAGE>
Patent GB-2017775-A (GB)
Title: Improved bleaching procedure
IPC: D06L4/24
Filed: 1979-03-19
Abstract: The adverse effects of dissolved organic material in the aqueous phase of pulp suspensions during bleaching using mixtures of chlorine dioxide and chlorine are overcome by applying the chlorine dioxide and chlorine serially to the pulp in two steps without an intermediate wash. An aqueous solution of chlorine dioxide or an aqueous solution of chlorine dioxide and chlorine may be used in the first step and chlorine is used in the second step. The novel processes decrease the consumption of bleaching chemicals. The process is especially useful when effected as the first stage of a multi-stage bleaching and purification operation.
Patent GB-2023603-A (GB)
Title: Pesticidal imidazolines, and their preparation and use
IPC: C07D233/22
Filed: 1979-06-14
Abstract: Pesticidal imidazolines of formula   <IMAGE> wherein X is O or NH; and Y is Br, F, I, -NO2, -OR, -CO2R, -CONR<1>R<2> or -SO2NR<1>R<2>, and, when X is NH, Y may also be Cl, CN or C1-4 alkyl, in which R is a C1-18 alkyl group, and each of R<1> and R<2> is hydrogen or a C1-18 alkyl group and acid additions salts thereof are provided. Methods are described for preparing the pesticides, together with intermediates formed in the preparative methods. Pesticidal formulations containing the pesticides and their use are also described. The pesticides may be used against Arthropods, e.g. against Acarina.
Patent GB-2024489-A (GB)
Title: Repetition Mechanism for a Grand Piano Mechanism
IPC: G10C3/16
Filed: 1979-06-25
Abstract: A repetition mechanism for a grand piano mechanism comprises a wippen (1) pivoted at one end in a wippen arm (3), a hopper (2) pivoted to the other end of the wippen (1), a repetition lever (6) pivoted to a repetition lever arm (5) projecting from the mid part of the wippen (1), a repetition spring (16, 17) of spring steel wire bent or wound round a post (15) on the repetition lever arm (5) and having ends extending apart, one end (17) sliding by abuting a continuously adjustable abutment element (19, 20) on the repetition lever (6) adjacent the hopper (2) and the other end (16) engaging the hopper (2) to bias it towards the wippen (1). <IMAGE>
Patent GB-2028454-A (GB)
Title: Braked Rotary Machines
IPC: F16P3/08
Filed: 1979-08-10
Abstract: A rotary machine such as a spin dryer or washing machine has means to ensure that the rotating drum (not shown) therein has ceased to rotate before a closure member (not shown) giving axis to the drum is opened, and comprises an operating member (not shown) having three positions, in the first of which it prevents access to the drum in the second position it also prevents access to the drum and applies a braking toggle linkage mechanism 14, 15, 16, 17 and in a third position allows the closure member to be opened in order to gain access to the drum. Movement from the second to the third position is prevented by reaction torque between co-operating brake elements 12, 13 when the operating member is in the second position tending to straighten the toggle linkage 15, 16, 17 until the drum has ceased to rotate thereafter movement to the third position is possible as the toggle linkage 15, 16 is moved into a collapsed condition. <IMAGE>
Patent GB-2057860-A (GB)
Title: Dishwasher
IPC: A47L15/42
Filed: 1979-10-09
Abstract: A dishwasher 4 provided with a flat reservoir 1 positioned between wash chamber 3 and the outer casing, said reservoir containing water for delivery to a salt container to form a saline solution for the regeneration of an ion exchanger, is characterised in that a rotary valve 12 is provided at the base of the reservoir so that a predetermined amount of water may be delivered to the salt container, said valve being settable via the interior of the wash chamber. <IMAGE>
Patent GB-2054053-A (GB)
Title: Steam Engines
IPC: F01K15/02
Filed: 1979-10-22
Abstract: The engine rotor, Fig. 1, is enclosed in a casing, Fig. 2, above an H.P. boiler, with a steam control valve interposed. The rotor drives a ship's propeller or a locomotive axle via bevel gearing. <IMAGE>
Patent GB-2040564-A (GB)
Title: Method of fabricating MOSFETs
IPC: H01L29/78
Filed: 1979-11-21
Abstract: A method for fabricating an integrated circuit semi-conductor device comprised of an array of MOSFET elements having self-aligned or self-registered connections with conductive interconnect lines involves the formation on a substrate 22 of a thick oxide insulation layer 30 surrounding openings therein for the MOSFET elements. A gate electrode 38 within each opening is utilised to provide self-registered source and drain regions 42, 44 and is then covered on all sides and on its top surface with a dielectric layer. After source-drain diffusions, a relatively thin dielectric protective layer is initially applied to the entire device prior to the application of an upper insulative layer. When oversized windows are etched in the upper insulative layer the protective layer prevents overetching of the gate dielectric layer, thus preventing shorts or leaks between conductive and active areas and providing self-aligned contacts with minimum spacing from adjacent conductive area. <IMAGE>
Patent GB-2070584-A (GB)
Title: Process for Producing N-alkyl- N-acyl-2,6-dialkylanilines
IPC: C07D307/68
Filed: 1979-12-08
Abstract: An improved process for producing N-alkyl-N-acyl-2,6- dialkylanilines of the formula   <IMAGE> wherein R1 and R2 independently of one another are methyl or ethyl, R3 is 1-methoxycarbonylethyl, 2- methoxyethyl, 2-ethoxyethyl, 2-n- propoxyethyl or 1-methyl-2- methoxyethyl, and R4 is chloromethyl, methoxymethyl or 2-furyl, by reaction of a N-alkyl-2,6-dialkylaniline of the formula   <IMAGE> wherein R4 and R2 have the meanings given above, with an acid chloride of the formula  R4-CO-Cl wherein R4 has the meaning given above, which process comprises adding the N-alkyl-2,6-dialkylaniline at 20 to 80 DEG C to a solution of the acid chloride in an inert solvent; subsequently evacuating the reaction vessel, in the same temperature range, to a pressure of 300 to 100 Torr; and after addition of water, layer- separation and removal of the organic solvent by evaporation, obtaining the N-alkyl-N-acyl-2,6-dialkylaniline of the above formula in the form of a melt.
Patent GB-2065702-A (GB)
Title: Electrolytic acid regveneration in regenerated cellulose manufacture
IPC: C08B16/00
Filed: 1979-12-11
Abstract: A method of producing regenerated cellulose comprising regenerating cellulose by acidifying and alkaline cellulose solution, passing the regenerated cellulose through an acid bath 5 to remove residual alkali therefrom, washing the regenerated cellulose with a countercurrent of washing water 7, passing liquid from the acid bath through the anode compartment 10 of an electrolytic cell, and the washing water through the cathode compartment of the said cell, the said cell being provided with an ion- selective membrance cell 11 divider to define the said anode and cathode compartments, and electrolysing the solution in the cell to raise the acidity of the anolyte and lower that of the catholyte to produce a less acidic aqueous effluent. <IMAGE>
Patent GB-2065299-A (GB)
Title: Object measuring arrangement
IPC: G01B11/02
Filed: 1979-12-13
Abstract: Object measuring arrangements provide two dimensional measurements of the position and dimensions of a projection of an object 4 imaged on an electronic scanning device 10 the measurements being substantially independent of the object position in three dimensions over a range of positions comparable with the object dimensions. An optical parallel projection system is provided, having a large diameter fresnel lens 5 and in its focal plane an objective lens 8, in which a projection of the object is made onto a television camera photocathode 9 at a constant scale. A usefully extended depth of focus is obtained by thresholding the camera signal output. A signal processing device makes the measurements from the relative positions of object edge signals in the camera raster 11. <IMAGE>
Patent GB-2044490-A (GB)
Title: Constant amplitude controller with feedback control for a vibratory feeder apparatus
IPC: H02K33/00
Filed: 1980-01-21
Abstract: There is disclosed a constant amplitude controller with feedback control for a vibratory feeder apparatus wherein a controlled rectifier is used to rectify A.C. line voltage applied to a feeder soleniod and to control the voltage to the feeder solenoid. Triggering of the controlled rectifier is accomplished by a bias control signal which is composed of an A.C. phase shift voltage superpositioned by a variable D.C. bias voltage. Mechanical coupling is provided between the solenoid and a transducer which provides feedback to control logic circuitry. In the control logic circuitry, the signal received from the transducer is compared with a signal received from an operator adjusted potentiometer. In this manner, the desired amplitude of the vibrator apparatus is compared with the actual amplitude of the vibrator apparatus and, if there is a discrepancy, the control logic circuitry modifies the amount of control voltage being transferred by the controlled rectifier.
Patent GB-2056677-A (GB)
Title: Thermally-responsive actuators
IPC: H01H61/01
Filed: 1980-08-06
Abstract: An override mechanism comprises a member (6) which is adapted to be moved into an overriding condition, by a spring (12) against a valve stem 9, but is normally held against such movement by an actuator (14) retaining the spring (12) in the compressed condition. The actuator (14) comprises a spring of shape memory effect material which when heated maintains an expanded configuration, as shown, to retain the spring (12); however if the heating is discontinued, the actuator loses its stiffness and allows the spring (12) to expand and move the member (6). In the embodiment shown the shape memory effect material is formed as a spring having hollow coils within which an electrical heating wire (14B) is provided; in another embodiment such a spring has solid coils and is encased in a heating sleeve. <IMAGE>
Patent GB-2081783-A (GB)
Title: Flood-stop
IPC: E06B9/00
Filed: 1980-08-13
Abstract: A flood-stop panel slides into channels attached to the wall either side of a doorway. The side and bottom channels would be permanent fixtures, so that before or during flood conditions the owner of a flood-stop would acquire instant protection by simply sliding the flood-stop panel into position. <IMAGE>
Patent GB-2059598-A (GB)
Title: Inductive rotational speed or position transducers
IPC: F02P7/067
Filed: 1980-09-26
Abstract: A transducer comprises an iron disc (S) rotatable relative to an inductive sensor (T) and having a plurality of mutually congruent segments (s) each comprising a tooth and an adjacent tooth gap, and at least one segment (S1) whose tooth (10) has a circumferential length different from that of the teeth (1 to 6) in the other mutually congruent segments, whereby rotational speed and/or angular position of a shaft can be determined. <IMAGE>
Patent GB-2061805-A (GB)
Title: Moulding apparatus
IPC: B29C33/20
Filed: 1980-10-22
Abstract: Apparatus on which the mould parts are mounted in a moulding machine (1) comprises a frame (2), a fixed plate (3) and a movable plate (5). In one embodiment the fixed plate (3) and the frame (2) are spaced apart with the movable plate (5) disposed therebetween. One or more screws (8) extend between and are rotatable in the fixed plate (3) and the frame (2), and pass through nuts (7) attached to the movable plate (5). The screws (8) are driven by motors (9) so as to move the movable plate (5) towards or away from the fixed plate (3). The fixed plate (3), the movable plate (5) and the frame (2) are vertically arranged with the screws (8) horizontal. In another embodiment the fixed plate is mounted on top of the frame, both being horizontally disposed, and the movable frame is disposed horizontally above with the screws extending vertically. <IMAGE>
Patent GB-2069702-A (GB)
Title: Liquid sample measuring system and sample cards therefor
IPC: G01R27/22
Filed: 1980-10-23
Abstract: A system for measuring a parameter of a liquid sample, such as the hematocrit and an approximation of hemoglobin for a blood sample, basically comprises an instrument and a disposable sample card 12. The instrument is a hand-held, battery-operated device measuring a parameter such as blood conductivity. The instrument accepts the disposable sample card, and has provision for digital displays for readouts. There are no external switches on the instrument, and power is automatically applied when the disposable sample card is inserted into the instrument. The disposable sample card 12 may be a micro-volume conductivity cell precision molded from plastic with built-in stainless steel electrodes 22,24. It comprises a planar base portion on which is defined a capillary tube. First and second electrodes are disposed within the capillary tube in a spaced relationship and define a volume within the capillary tube, which consitutes the conductivity cell. The instrument comprises an electronic portion for processing data obtained from the liquid sample on the sample card, a front-end mechanism 43 for positioning the sample card within the instrument, and a digital display for displaying the results of a parameter measurement made in the instrument. <IMAGE>
Patent GB-2067966-A (GB)
Title: A steering mechanism, more particularly for marine craft
IPC: B63H25/10
Filed: 1981-01-23
Abstract: The invention consists of a steering mechanism 10 for marine craft which is fitted directly to the rudder stock 13. The mechanism comprises a top cover plate 22, a central frame member 11 fixedly mounted on the craft, and a lower base plate 31 which are rotatably interconnected by a central bolt 27. The rotatable cover plate 22 is provided with a horizontal steering wheel 42 and is drivably connected with the base plate 31 through an epicyclic gearing which reverses the drive and consists of a central pinion 23 on the cover plate 22, a ring gear on the base plate 31 and intermediate gears 18 carried by the fixed frame member 11. <IMAGE>
Patent GB-2068857-A (GB)
Title: Motor vehicle axle casings
IPC: B21K1/26
Filed: 1981-02-02
Abstract: An axle casing is formed from a unitary workpiece (1) and has a central portion (7) from which casing tubes (9) extend. The casing tubes are shaped to a varying cross-section by alternate reduction and ironing steps by means of external dies (3) and internal drawing discs (5). The central portion (7) can be pressed flat and provided with a spherical section opposite an aperture to accommodate a driving mechanism. The axle casing is thereby formed with a uniform strength and is light weight. <IMAGE>
Patent GB-2096089-A (GB)
Title: Container opening and emptying machine
IPC: B65B69/00
Filed: 1981-04-03
Abstract: A machine for opening and emptying containers, such as cartons or sacks, containing particulate material comprises axially spaced cutters 12 for cutting the container into a plurality of discrete pieces, and a screw conveyor 16 for conveying such pieces over a screen (17) to separate the container pieces from the particulate material which passes through the screen. The cutters extend into grooves of a container feed conveyor 14 to ensure complete severance of the container pieces. The screw conveyor and screen (17) are inclined upwardly from the base of a hopper 10, the material passing through the screen dropping into a chute (20) to be collected by a horizontal screw conveyor 21. <IMAGE>
Patent GB-2078965-A (GB)
Title: Processing transducer signals
IPC: G01N27/90
Filed: 1981-05-20
Abstract: Measurement apparatus receives a signal from an eddy current transducer (20) excited by a generator. A signal generator (21) generates a signal at a predeterminable reference level which is combined with the transducer signal to produce a measurable signal at output (23). The output of the signal generator (21) is determined by amplitude controls (29, 30) in accordance with control coefficients applied via data bus 43. The output of the signal generator (21) may be predetermined iteratively in a calibration phase preceding measurement. The present invention overcomes the problem of providing an inactive matched eddy current transducer to balance the signal provided by the measurement transducer (20). A second transducer (49) may be switched (50) to replace the signal generator (21) to enable positioning of the measurement transducer (20) with respect to a workpiece. <IMAGE>
Patent GB-2101820-A (GB)
Title: Starter circuit for a fluorescent tube lamp
Inventor: BYATT STEPHEN WILTON
IPC: H05B41/04
Filed: 1981-06-08
Abstract: A starter circuit for a fluorescent strip lamp having preheated electrodes has an SCR which is fired at progressively later times in successive half cycles of the a.c. supply mains. The SCR is connected across the d.c. diagonal of a rectifier bridge (D1-D4), the a.c. diagonal of which is connected between the tube electrode heaters. The SCR is fired by a pulse from a diac D connected from the junction of a resistor and a capacitor R3, C3 connected in series across the SCR voltage. The charging current for the capacitor is reduced by a transistor T1, in parallel with the capacitor, and the conductivity of the transistor, which is determined by a CR circuit connected to its base, is progressively increased thereby delaying the time of the firing pulse. Ultimately, if the lamp fails to ignite, the transistor draws sufficient current to prevent the triggering of the diac. <IMAGE>
Patent GB-2078268-A (GB)
Title: Continuous Treatment of a Cloth
IPC: D06B3/20
Filed: 1981-06-23
Abstract: Continuous treatment of a cloth, such as a pretreatment, dyeing or print dyeing wherein the cloth 3 to be treated is soaked in an air vessel 1 with treatment liquid, air within the vessel 1 being maintained at high pressure but at ordinary temperatures. The resultant cloth is then fed through a transfer passage 8 into a steamer vessel 2 where the cloth is subjected to a wet-heat treatment, the interior of the steamer vessel 2 being maintained at conditions of superatmospheric pressure with steam at about 100 DEG C. The transfer passage 8 is provided with rolls 8l which guide the cloth without subjecting the cloth to any squeezing action, and is also provided with an arrangement 8a to prevent mixing of air from vessel 1 and steam from vessel 2. This arrangement 8 includes two pressure reducing chambers 8b and 8c arranged in series and exhaust pipes 8h and 8l gradually to bleed air or steam as appropriate from the associated chamber. A cloth inlet to the air vessel 1 and a cloth outlet from the steamer chamber 2 are fitted with respective seal mechanisms 9 and 10. <IMAGE>
Patent GB-2105927-A (GB)
Title: A switching circuit
Inventor: FRANKS PATRICK DANIEL
IPC: H03K17/567
Filed: 1981-07-16
Abstract: A switching circuit has a load current path which comprises a series arrangement of a Thyristor (THY1) and a transistor (TR1). The gate electrode of the Thyristor (THY1) and the gate or base electrode of the transistor (TR1) are coupled with a common switching signal input. This arrangement enables efficient turn-off of the thyristor. <IMAGE>
Patent GB-2102043-A (GB)
Title: Process and apparatus for jacking conduits in ground containing ground water
Inventor: WEISS RICHARD
IPC: E21D9/00
Filed: 1981-07-16
Abstract: A conduit (not shown) is jacked into ground containing water from an excavation 1 using a sealed pressure- type cutter shoe 13. The excavation 1 is formed by driving in sheet piles 3 and excavating within the piles 3, allowing the ground water to flow in up to water table level 6. A concrete base 7 is then cast underwater and when set, the water is pumped out, a floor 8 and frame wall 10 having opening surrounded by an annular lip seal are then installed together with jacks 16 and cutter shoe 13. The cutter shoe 13 is sealed to opening in frame wall 10, the shaft piles in front of the opening are raised and the cutting shoe is forced into the ground, followed by sections of the conduit. The cutter shoe 13 has a sealed bulkhead (not shown) having a window and a sealed opening for a worm conveyor.   <IMAGE>
Patent GB-2092339-A (GB)
Title: Data recording system
IPC: G06Q10/00
Filed: 1981-09-29
Abstract: A recording device is described for use by Milk Marketing Board inspectors, and a modified version for use by farmers, to allow information relating to milk yield/cow and a history of each animal to be kept and delivered for subsequent processing. The apparatus comprises a hand-held unit having a keyboard and displays with internally a microprocessor, and memory for storing data. The unit may include a label printer to allow bottles to be labelled as they are filled with samples from the cows. Information from a herd is sent to a central processing unit, into which it can be fed directly. A copy of the information gathered may be retained by the farmer. <IMAGE>
Patent GB-2089075-A (GB)
Title: Water activated diving timer
IPC: G04G21/08
Filed: 1981-11-03
Abstract: An electronic timer for use by divers for measuring elapsed time during dives uses a digital display (1) of elapsed time, driven by a conventional timing circuit (2) and turned on by current flowing through the water between two electrodes (5) situated on the device. Timing therefore starts automatically when the diver enters the water, and stops when he leaves it. The timer is powered by a battery (3). <IMAGE>
Patent GB-2095232-A (GB)
Title: Recovery of purified monosodium glutamate
IPC: C07C227/28
Filed: 1982-01-29
Abstract: A process for the recovery of further pure monosodium glutamate from a discoloured monosodium glutamate mother liquor obtained by crystallizing and separating pure monosodium glutamate from a monosodium salt solution of glutamic acid comprises (a) contacting the monosodium glutamate mother liquor with a weak base anion exchange resin in the hydroxide form, whereby at least some of the coloured material present is separated from the mother liquor, and (b) crystallizing and separating pure monosodium glutamate from the at least partially decolourized mother liquor resulting from (a). The process provides a simple and not too expensive technique for recovering the further pure monosodium glutamate.