baber/WOPTO huggingface dataset:
Patent GB-2122996-A (GB)
Title: Process for the preparation of 1,1-dichloro-4-methyl-1,3-pentadiene
Inventor: SOOS RUDOLF
IPC: B01J31/02
Filed: 1982-11-10
Abstract: A process for the preparation of 1,1-dichloro-4-methyl-1,3-pentadiene of 97-99 % purity from a mixture of trichloro-methyl pentenol isomers of formulae II <IMAGE> and III <IMAGE>of optional ratio by acetylating the compounds with acetic anhydride, reduction with zinc dust, thereafter by isomerization with a sulphonic acid. The process involves the following steps: that after the acetylation and subsequent reduction of the trichloro-methyl pentenol, the diene of the formula IV <IMAGE>present in the raw product or distilled mixture is transformed into the isomer of formula I <IMAGE>by isomerization with methane sulphonic acid, acetoxy sulphonic acid and/or p-toluene sulphonic acid at 40-130<o>C, whereafter the contaminations present - mainly consisting of trichloro pentene isomers -, are reacted with alkali hydroxides in the presence of water and alkanol.
Patent GB-2132025-A (GB)
Title: A receiver for a phase comparison radio navigation system
Inventor: PRATT ANTHONY RICHARD
IPC: G01S1/30
Filed: 1983-11-11
Abstract: A receiver for a phase comparison navigation system has a plurality of channels for receiving phase related signals which are different multiples of a fundamental frequency. The signals are fed to respective mixers (12A to 12D) for conversion to respective intermediate frequencies prior to phase comparison. Each mixer (12A, 12B, 12C and 12D) receives a respective local oscillator signal of predetermined phase from a respective numerically controlled oscillator (34A, 34B, 34C and 34D) clocked by a common reference oscillator (38) of frequency fr, the frequency of each local oscillator signal being determined by a binary number Ni supplied to the oscillator by selector means (36A, 36B, 36C or 36D). In the preferred embodiment, each numerically controlled oscillator comprises two multiple bit latches and a binary adder which repeatedly adds Ni to the contents of the second latch until a threshold is reached. This produces a signal of frequency   <IMAGE> where m is the bit capacity of the adder. By altering Ni, the local oscillators can be relatively easily adjusted to any of a range of inter-related frequences whilst maintaining a defined phase relationship. Thus signals from a large number of transmitter chains can be received with relatively low hardware complexity and cost. <IMAGE>
Patent GB-2132503-A (GB)
Title: Packing element for a biological filter or for use in mass transfer
Inventor: HYPPONEN ALPO
IPC: B01D53/84
Filed: 1983-12-02
Abstract: A horizontally positioned packing element for a biological filter or for use in mass transfer, comprising one or more rims providing trickling faces (1, 2) along which a liquid or gas is arranged to flow in contact with another medium, e.g. oxidizing air. Trickling faces (1,2) are angled at 1 DEG -50 DEG , preferably 5 DEG -15 DEG , with respect to the intended main flow direction of the liquid or gas to be treated. The diameter of said packing element is greater than its height. At least one side of the packing element is provided with a depression (8). The number of rims may be 1-5, and these may be circular, elliptic, or square in cross-section, or may be a continuous wound spiral, the rims are joined by webs (4), and may have reinforcing webs (3), all of these being rounded off at their extremities (5). <IMAGE>
Patent GB-2149143-A (GB)
Title: Method and apparatus for metering milk
Inventor: FOX PAUL CHRISTOPHER
IPC: A01J5/01
Filed: 1984-02-06
Abstract: A metering apparatus comprises a pipe (10) through which milk is fed from a farm vat (11) to a tanker mounted collection vessel (12). In the pipe (10) is arranged a meter (13), for example a turbine flow meter for metering the milk. Valves (V2, V3) are arranged downstream and upstream of the meter (13) respectively. Upstream of the valve (V3) there is arranged a reservoir vessel (14) into which is passed milk from the vat (11) by means of a hose (15). A venting pipe (16) leads, via a valve (V1) from the top region of the reservoir vessel (14) to the storage vessel (12) above an inlet (18) to the vessel (12). The apparatus and method of operation is such that the meter (13) meters only milk, and not air, the valves being controllable in response to probes (P1 to P4) to prevent milk with entrained air from being metered. <IMAGE>
Patent GB-2136878-A (GB)
Title: Pumping station having means to prevent back syphonage
Inventor: HAWES STEPHEN MICHAEL
IPC: F04D9/00
Filed: 1984-03-06
Abstract: A pumping station in which water is pumped from one level to another comprises a water discharge pipe 5 terminated by a generally horizontal section 8 adapted for disposition in a waterway and arranged to be movable vertically to adapt to differing water level in the waterway and which is sufficiently buoyant so that at least part of the interior thereof lies adjacent to or above the water level when water is not being discharged through the pipe, whereby air is drawn into the pipe to prevent back syphonage. However, when the pump 4 (which may be a floating pump) is operating, the discharge of water through upwardly-directed outlets in the section 8 causes the pipe to sink. The pipe may be made of high density polyethylene. <IMAGE>
Patent GB-2139126-A (GB)
Title: Rolling mill and work roll backup system therefor
Inventor: VERBICKAS ROBERT CHARLES
IPC: B21B13/14
Filed: 1984-04-12
Abstract: A rolling mill is disclosed in which the work roll (26) has a vertical backup roll (30) in substantially the same vertical plane as the work roll axis and a lateral backup system which transmits lateral force components to a substantially rigid frame (10). The lateral backup system includes a lateral backup roll (40, 41), a bearing roller (43, 44) and a mounting structure (46, 47) which rotatably supports the lateral backup roll (40, 41) in contact with the work roll (26) and the bearing roller (43, 44) outboard of and in contact with the lateral backup roll (40, 41), the mounting structure having a surface (54, 55) in contact with the frame (10). A support (48, 49) for the mounting structure is adjustable to permit the alignment of the central axes of the work roll (26), lateral backup roll (40, 41), bearing roller (43, 44) and the contact point with the frame (10). The surface (54, 55) in contact with the frame (10) is preferably curved. <IMAGE>
Patent GB-2157902-A (GB)
Title: Windscreen wiper motor protection circuit
Inventor: BEESLEY MARK
IPC: H02H7/093
Filed: 1984-04-17
Abstract: A motor protection circuit for a windscreen wiper motor incorporating a limit switch which is actuated periodically in use whenever a wiper blade driven by the motor is at a parking position includes a timer (R2 C1) which is reset whenever the limit switch (11) is actuated but runs whenever the limit switch is not actuated whilst the motor is energised. The timer controls an interrupter (Q1, 12, 12a) to disconnect the motor from its supply if the limit switch remains unactuated for a predetermined time. A further timer (R10, C2) operates the interrupter if the limit switch remains actuated for a predetermined time while the motor is energised. <IMAGE>
Patent GB-2140255-A (GB)
Title: Demodulation circuit for a biphase signal
Inventor: SCHOLZ WERNER
IPC: H03M5/12
Filed: 1984-04-18
Abstract: A demodulation circuit for biphase signals for the recovery of a data signal from a biphase signal distorted during the transmission, in which a pair of bits or pair of eyes of the biphase signal, formed from two successive bits, corresponds to each bit of the data signal, comprises a demodulator so constructed that only one bit of the pair of bits is evaluated each time by comparison with the clock frequency of the data signal or with an adjacent pair of bits, equalization of the biphase signal is effected in such a manner that in an equalisation circuit (2) only the first or only the second eye of the pair of eyes is opened as wide as possible and the demodulator (6) only evaluates this eye. <IMAGE>
Patent GB-2139179-A (GB)
Title: Improvements in trailers
Inventor: SMETHURST MICHAEL ERNEST
IPC: B62D53/06
Filed: 1984-04-24
Abstract: A trailer includes a load receiving platform (2), and at least two wheels (4,5) mounted on wheel mounts (6), the wheel mounts (6) being arranged for movement with respect to the load receiving platform (2) from a first position (Fig. 2) where the wheels (4,5) project downwardly below the load receiving platform (2) to a second position (Fig. 3) where the wheels (4,5) do not project downwardly below the load receiving platform (2). Tow-bar (8) is rigid with member 11, allowing platform (2) to be dropped to ground level as shown by hydraulic cylinder (10) acting on the trapezium linkage. <IMAGE>
Patent GB-2167607-A (GB)
Title: Ribbed sheet metal case
Inventor: CASLAVA FRANTISEK
IPC: H02K5/18
Filed: 1984-11-20
Abstract: A ribbed sheet metal casing 6, in particular a frame for a rotating electrical machine, has longitudinal discontinuous welds 5 at the points of ribs 2 on the inner surface of the casing 3 6 to maintain the integrity of the ribs. This reduces energy consumption, labour requirement and speeds up manufacture and enables larger lots in series manufacture of such casing compared to prior art techniques. <IMAGE>
Patent GB-2163618-A (GB)
Title: Gray code angle encoder
Inventor: YOUNG WILLIAM MOULD
IPC: G01S1/70
Filed: 1985-08-16
Abstract: A reference beacon comprises a radiation source 3 coupled to a modulator 7,10 arranged so that the radiation source will emit a rotating directional beam which is Gray encooled with its direction of emission by switching it 'on' and 'off' to represent successive one bits of the code per rotation. <IMAGE>
Patent GB-2164217-A (GB)
Title: Inductive loop frequency control
Inventor: BARTLETT DAVID WILLIAM
IPC: H03L7/085
Filed: 1985-08-30
Abstract: An inductive loop 33 is excited by an oscillator 10 whose frequency is maintained at a reference value, tuning being effected by combining antiphase oscillator signals X, Y in various proportions and coupling the resultant back to the signal X over a capacitance 40; the effect of the capacitance 40 on the oscillator frequency is thereby variable about zero in either direction. The proportion of the signal Y is varied step-wise initially for coarse tuning: the loop oscillation frequency X is compared at 32 with the reference value, set by a divider 30, and if the error 58 is out of limits a VCO (within block 32) is energised to clock a binary counter 18 to select combinations of weighting resistors 42a-d and alter the proportion of signal Y fed therefrom, in combination with a fixed proportion of signal X over resistor 48, to an amplifier/inverter 20 and the capacitor 40. As the frequency error comes within limits, the clock VCO is slowed to a stop, but the error signal continues to control an attenuator/inverter 22 to provide an inverted signal Y of corresponding amplitude, which is fed back to give continuous fine tuning. The loop error signal is hereafter used to monitor small loop inductance changes caused e.g. by vehicles to be detected. <IMAGE>
Patent GB-2167766-A (GB)
Title: Methane conversion
Inventor: GAFFNEY ANNE M
IPC: B01J23/10
Filed: 1985-04-11
Abstract: A method for synthesizing hydrocarbons from a methane source which comprises contacting methane with a reducible oxide of Pr, Tb, Ce, Fe or Ru. The oxide is preferably combined with an amount of alkali and/or alkaline earth metal which is sufficient to improve the selectivity to higher hydrocarbon products. The oxide is reduced by the contact which is carried at about 500 to 1000<o>C. Reducible oxides are regenerated by oxidizing the reduced composition with molecular oxygen.
Patent GB-2169275-A (GB)
Title: Zeolite catalysts
Inventor: LE VAN MAO RAYMOND
IPC: C07B61/00
Filed: 1986-01-02
Abstract: Improved yield in light olefins and aromatics from methanol conversion on Zn and Mn loaded ZSM-5 pentasil zeolite and composite pentasil zeolite-asbestos catalysts, the Zn content thereof ranging from 0.1 to 1.0% wt/wt and the Mn content thereof ranging from 0.2 to 5.0% wt/wt of the metal content. The light olefins/aromatics ratio in the products varies with the Mn content in the catalyst, the cumulative light olefinic and aromatic production being kept constant at a high value (higher than 80% at 450 DEG C).
Patent GB-2170873-A (GB)
Title: Disc brakes
Inventor: UTHEMANN WOLFGANG
IPC: F16D65/097
Filed: 1986-02-06
Abstract: To prevent rattling of a carrier plate 2, on which a pad 3 of friction material is fixed, against guides not shown for guiding the plate to and from the rotating disc there is provided a wire spring, free ends of which press upwardly against a support structure, the spring pressing the plate 2 downwardly on to the guides. The wire spring has diverging arms 7 connected together by two lengths 6, passing through an opening 8 in the plate 2, and by a part 5, near the far face of the plate, which extends laterally from and beyond the opening. The lengths 6 of the wire spring are held in the opening 8 by a holding member 9 which can be hollow and formed with an internal shoulder to locate an indicator of wear of the brake. <IMAGE>
Patent GB-2181467-A (GB)
Title: Elongate sections
Inventor: DEELEY GEOFFREY THOMAS
IPC: E04C3/04
Filed: 1986-07-21
Abstract: A member formed of sheet metal and suitable for use as a beam has a transverse cross-section which is generally Z-shaped. A web 11 of the member includes a flat central part 12 and, adjacent to each flange 20,22 a respective part 13, 16 inclined to the central part. Each inclined part is connected with the central part of the web by a respective intermediate part 15, 18 which projects from the central part in the same direction as does the adjacent flange. <IMAGE>
Patent GB-2194185-A (GB)
Title: Insertion of T-nuts in sheets
Inventor: TAYLOR CHRISTOPHER NORMAN
IPC: B23P19/00
Filed: 1986-08-01
Abstract: A T-nut 9 is retained by a magnet 3 over a punch 1 and driven through a workpiece 19 of laminar material. A plug of the material is expelled through a bore 18 in a fixed die 14 and, when the punch 1 is retracted, the T-nut 9 is left tightly held in the resulting hole in the workpiece. <IMAGE>
Patent GB-2183428-A (GB)
Title: Pattern forming apparatus
Inventor: SETO KUNIO
IPC: G06T11/00
Filed: 1986-10-01
Abstract: To form a variety of patterns e.g. white patterns on a black background, hatched patterns, shadowed patterns, original pattern data, either text or graphics, is produced by an image reader and stored in a first image memory. This original image is then subjected to transformation by magnification, translation, rotation and shading to form elements of the required pattern. These elements are stored in further respective image memories. The original pattern and the elements are then combined using logic functions to produce the required pattern. The production of a hatched pattern is shown in Figure 7, and Figure 8 shows a combination of hatching, white-on-black and shadowing. <IMAGE>
Patent GB-2185159-A (GB)
Title: Cable connectors
Inventor: HOLLICK DAVID JOHN
IPC: H01R4/24
Filed: 1987-01-07
Abstract: A cable connector for use in providing electrical contact between a main cable (4) and a service cable (34) comprises projections (8) and/or (24) for piercing the insulation of the main cable. The connector comprises a C-shaped member (2) partially surrounding the main cable (4), a first U-shaped member (16) engaging the arms (12) of the C-shaped member and a second U-shaped member inverted with respect to said first U-shaped member (20) and partially surrounding the service cable. A bolt 32 urges a pressure plate (26) which is positioned between the arms of the second U-shaped member (20), towards the bight of the second U-shaped member (20) until no further movement is possible. Continued pressure causes the second U-shaped member (16) to move towards the bight of the C-shaped member (2) such that the insulation on the mains cable (12) is pierced by the projections (8,24). Ridges 22 are provided for gripping a stripped service cable. However, insulation piercing projections may be provided for use with an unstripped service cable. <IMAGE>
Patent GB-2207105-A (GB)
Title: Improvements relating to accumulation conveyors
Inventor: BENTLEY DAVID
IPC: B65G13/075
Filed: 1987-06-05
Abstract: The invention concerns improvements relating to accumulation conveyors, and in particular to a brake for such conveyors. The brake includes a brake roller 5 associated with each zone of drive rollers, and a dog clutch arrangement having a first dog clutch part 13 which is pivotable within predetermined angular limits against a bias of resilient means 24, 25 which dog clutch part 13 is engageable and disengageable with from a mating dog clutch part 12 on the brake roller. The brake further includes a priming lever 6a and an actuating lever 7a which are connected by respective linkages for simultaneous movement with the priming and actuating levers of the drive rollers of the zone, such that when the actuating levers are set to disengage the drive to the rollers, the brake lever 7a is set to cause the brake roller to be braked. <IMAGE>
Patent GB-2213357-A (GB)
Title: A self-propelled spraying vehicle
Inventor: JAGGERS STEPHEN CRAIG
IPC: A01M7/00
Filed: 1987-12-11
Abstract: A self-propelled spraying vehicle (2) for spraying weeds between rows of trees or plants, which spraying vehicle (2) comprises a reservoir (4) for containing a liquid to be sprayed, a shield member (10) through which the liquid from the reservoir (4) is sprayed, and a steering member (14) by which the spraying vehicle (2) is steered by a person walking behind the spraying vehicle (2), the shield member (10) being such that it extends substantially to ground level so that it defines an area of the ground to be sprayed. <IMAGE>
Patent GB-2214191-A (GB)
Title: Reversibly photochromic printing inks
Inventor: AMON ALBERT
IPC: C09D11/02
Filed: 1988-01-12
Abstract: Photochromic printing inks are disclosed which are in particular used for the printing of security documents. Prints are normally nearly colorless and become colored when energy irradiated, such as by ultraviolet light. This photocoloration is reversible. The printing inks contain photochromic compounds which are protected against oxygen and other ink components. Methods are described to prepare the inks, to print security documents, and to detect counterfeiting.
Patent GB-2271845-A (GB)
Title: Polarisation image detection systems
Inventor: KALAWSKY ROY STEPHEN
IPC: G02B27/28
Filed: 1988-01-22
Abstract: A polarisation image detection system producing an image illustrating structural information of a viewed scene which is representative of the degree of linear polarisation comprises a detector system which enables more information to be extracted from the scene, the system comprising an optical arrangement having an optical axis (4) about which a retarder (1) and a linear polariser (2) can be independently rotated, for producing a focussed image on a detector. This arrangement can be expressed mathematically in terms of Stokes parameters and Mueller matrices, and the expression can then be solved to provide three different polarisation images representative of the viewed scene. <IMAGE>
Patent GB-2215179-A (GB)
Title: Holder for cigarette packet and matches
Inventor: LEE DAVID
IPC: A24F15/18
Filed: 1988-02-11
Abstract: A holder for a packet of cigarettes comprises an open topped sleeve (10) and a pull out drawer (13) to hold a supply of matches. The packet is placed in the holder with the packet lid protruding above the upper end (11) of the sleeve (10) allowing removal of the cigarettes. A striking surface (15) is provided on an external face of the sleeve (10) by which matches can be ignited. <IMAGE>
Patent GB-2211884-A (GB)
Title: Cord fastener
Inventor: ANSCHER JOSEPH
IPC: F16G11/10
Filed: 1987-09-10
Abstract: A fastener for releasably clamping cords which includes a housing (12) having a cavity (36) therein and a movable element (52) disposed in the cavity (36) defining one or two cord passages (68, 70) and further including a spring (54) attached to the housing (12) so that the passage is restricted by the movable element (52).
Patent GB-2208592-A (GB)
Title: Telescopic support member with locking member
Inventor: BLASS CLIVE
IPC: F16B7/14
Filed: 1988-06-09
Abstract: An adjustable support member in which an inner tube (3) is slidably and telescopically mounted in an outer tube (1). Relative axial movement between the inner tube (3) and the outer tube (1) is prevented by a locking mechanism actuated by a movable end cap (6) connected by an actuator rod (9) to a cup (8) mounting balls (12) which protrude through holes therein. A cone (4) is fitted into the free end of the inner tube (3). A spring (7) acts against a collar (11) fitted to the actuator rod (9) to draw the cup (8) towards the cone (4) thereby forcing the balls (12) to jam against the inside surface of the outer tube (1) and axially fix the position of the inner tube (3) relative to the outer tube (1). <IMAGE>
Patent GB-2206190-A (GB)
Title: A method and apparatus for cooling foodstuffs
Inventor: SADD PETER ALLEN
IPC: A23L3/36
Filed: 1988-06-13
Abstract: A method and apparatus for cooling or heating, e.g cooking, foodstuffs in which foodstuffs are exposed to a succession of cooling or heating zones along a conveyor track (27) which is preferably of a generally spiral shape. Air used for cooling is humidified. Cooling results in a lower average value to the weight loss than has hitherto been possible. <IMAGE>
Patent GB-2225845-A (GB)
Title: Ice bank coolers
Inventor: REED PETER SUTHERLAND
IPC: F25D16/00
Filed: 1988-11-24
Abstract: An ice bank cooler has air lines (5) from which bubbles issue for agitating the water as it is frozen by a heat exchanger (4). Apertures for these bubbles are at the bottom of the air lines and the pressure in those lines is maintained at least equal to the external pressure, so that water does not enter and damage the air lines. <IMAGE>
Patent GB-2216417-A (GB)
Title: New uses of 4-(3-phosphono-2-propenyl)-2-piperazinecarboxylic acid
Inventor: DIXON ARNOLD KEITH
IPC: A61P25/24
Filed: 1989-03-07
Abstract: The compound of formula I   <IMAGE> or a hydrate thereof or pharmaceutically acceptable salt thereof is useful in the treatment of disorders characterised by reduced drive and/or social withdrawal, sleep disturbances or migraine.
Patent GB-2218647-A (GB)
Title: A board game
Inventor: BULL PETER JAMES
IPC: A63F3/04
Filed: 1989-03-31
Abstract: Apparatus for playing a board game comprising a playing surface (11) marked to represent the major geographical features of a physical region, such as a country (12, 13), with a plurality of routes (16, 17, 18) across the board from one or a plurality of starting positions to a destination, the routes being regularly sub-divided into areas (16a, 17a, 18a) representing units of distance, a plurality of player tokens, and means for determining the number of distance-representative units to be moved by a player's token at each turn, including a plurality of question-and-answer cards (19) having an image on one face and instructions to the player on the other, the card determining the number of distance-representative units of a route to be displaced during a given turn for correct answering of the question. Other question-and-answer cards (20), play money (21), and dice may be used. <IMAGE>