baber/WOPTO huggingface dataset:
Patent GB-2051793-A (GB)
Title: Process for producing sebacic acid
IPC: C25B3/29
Filed: 1980-05-27
Abstract: In a process for producing sebacic acid from adipic acid comprising three steps, i.e. (1) half-esterification of adipic acid with methanol to yield monomethyl adipate, (2) electrolytic condensation of the monomethyl adipate to yield dimethyl sebacate, followed by separation and purification of the dimethyl sebacate and (3) hydrolysis of dimethyl sebacate to yield sebacic acid, the desired sebacic acid can be produced with easy recovery of an alkali metal salt of monomethyl adipate and easy separation of the dimethyl sebacate by removing the methanol from the electrolytic solution containing dimethyl sebacate after the electrolytic condensation after or at the same time that water is added to the electrolytic solution, separating the residual solution into oily and aqueous layers, obtaining dimethyl sebacate from the oily layer, recovering the alkali metal salt of monomethyl adipate as a monomethyl adipate solution from the aqueous layer by addition of monomethyl adipate to the aqueous layer before or after removal of water by evaporation from the aqueous layer, and recycling the monomethyl adipate solution to the electrolytic condensation step.
Patent GB-2067596-A (GB)
Title: Process and apparatus for the separation and re-use of dust material from the effluent gases of aluminium fusion electrolysis furnaces
IPC: B03D1/02
Filed: 1981-01-15
Abstract: In aluminium fusion electrolysis processes, valuable constituents namely cryolite, chiolite and aluminium oxide in the effluent gases are recovered and re-used by separating dust from the effluent gases and separated dust is subjected to a flotation step wherein the valuable constituents contained in the flotation slurry are separated and dried and recycled. The dust may be separated by a wet separation process using a scrubbing zone, or in a dry separation process in a filter unit.
Patent GB-2092047-A (GB)
Title: Apparatus for securing components by means of high frequency vibrations
IPC: B29C65/64
Filed: 1981-01-31
Abstract: Apparatus for securing components to plastic workpieces, comprises an ultrasonically-vibrated horn (10) which is vertically displaceable with respect to a holder device (16) for holding the components by means of a collet (28) whereby the horn tip (14) serves to push the component out of the collet (28) into engagement with a workpiece and apply ultrasonic vibrations to the component. Clearance is provided between the horn (10) and the holder device (16) so that only indirect contact therebetween is possible, i.e. through the intermediary of the component. <IMAGE>
Patent GB-2093285-A (GB)
Title: Battery Charger/Controller
IPC: B60L11/18
Filed: 1981-02-12
Abstract: This invention is a battery charger/battery driven motor controller which uses a common battery (11) and chopper (21) in two different modes of operation. In a charging mode the chopper is connected in series with the primary winding (25) of a transformer to provide high frequency chopping of the rectified charger supply, and the secondary voltage 15 is rectified and used for charging the battery. In the motor/controller mode of operation the same chopper (21) is used to control the current in a series motor (13, 17). There are alternative driver circuits (28) and (29) for the chopper (21) in the two modes. <IMAGE>
Patent GB-2101895-A (GB)
Title: Mandatory minute volume ventilator
Inventor: MANLEY ROGER EDWARD WENTWORTH
IPC: A61M16/00
Filed: 1981-06-23
Abstract: A mandatory minute volume ventilator (MMV) comprises a patient inhalation channel (1) for connection at one end (2) to a prescribed minute volume source and at the other end (3) to the patient, and an exhalation channel (21) for connection to the patient at one end (22) and to conventional exhaust means (29) at the other end (23). The inhalation channel (1) has a single bellows (11) coupled to a volume determining device (13) and, downstream of the bellows, parallel channels respectively containing a normally-closed remotely controllable valve (6) and a normally-closed demand-responsive valve (10). The parallel channel containing the controllable valve (6) also contains a manually adjustable flow metering valve (5). The expiration channel (21) additionally contains a series connected normally-open remotely controllable valve (25). The MMV further comprises a microprocessor (7) programmed to operate the two remotely-controllable valves (6) and (25) in relation to certain prescribed inputs so as to ensure that the patient breathes the mandatory minute volume whilst permitting him to take spontaneous breaths. These inputs comprise a signal from the bellows volume determining device (13) via an A/D converter (35), a signal from a tidal volume setting device (41) via an A/D converter (42), signals representing the on-off states of the valves (6), (10) and (25) and, in the preferred arrangement, a signal from an inspiration-pause setting arrangement, comprising a setting potentiometer (36) and A/D converter (37), a clocked counter (39) and a comparator (38), which arrangement has the function of prescribing a delay in the opening of the valve (25) after valve (6) shuts, these two valves normally being in opposite states. By continuously tracking the volume changes in the bellows (11) the microprocessor (7) computes such quantities as minute volume, tidal volume, inspiration flow, inspiration time, breathing frequency, percentage inspiration time, inspiration time/expiration time-ratio and the corresponding spontaneous breathing parameters and all these values may be displayed simultaneously, or by selection, on a suitable display monitor (32). The microprocessor (7) may also be programmed to operate an alarm (43) when any of the above parameters fall below or exceed respective predeterminable limits. <IMAGE>
Patent GB-2082653-A (GB)
Title: Apparatus for signalling within a borehole while drilling
IPC: E21B47/18
Filed: 1981-08-10
Abstract: A down-hole signal generator for a mud-pulse telemetry system comprises a flow constrictor defining a throttle orifice for the mud passing along a drill string, a throttling member displaceable with respect to a casing 10 to modulate the mud pressure for the purpose of transmitting measurement data up the drill string, and a turbogenerator incorporating an electrical generator 44 within the casing 10. The flow constrictor and casing 10 form an integrated unit which is installed within a drill collar and is retrievable by drawing it up the inside of the drill string. The throttling member is displaced by a pump 52 according to the torque required to drive the rotor 42 of the generator 44 which is dependent on the electrical load of the generator 44. <IMAGE>
Patent GB-2108155-A (GB)
Title: Process and device for gaseous atmosphere separation in plants for heat treatment under pressure
Inventor: WANG ROBERT
IPC: C23C2/00
Filed: 1981-09-11
Abstract: A process for the separation of gaseous atmospheres in heat treatment plants under atmosphere, especially in dip metal coating plants; this process being characterized by the fact that the gaseous atmosphere separation is performed near to the coating metal bath 14 and to the heat treatment furnace 12 by injecting a gas flow into an enclosed space 10 connecting the heat treatment furnace 12 to the metal bath 14 in such a way that a part of this gas flow through vestibule 20 is conveyed to the furnace 12 and the other part through vestibule 22 sweeps the bath 14 neighbouring zone, collects coating metal vapors, is then exhausted and treated. The metal vapours are condensed by heat exchangers 28, 30 as the gas is exhausted. <IMAGE>
Patent GB-2101117-A (GB)
Title: New O-substituted oxime derivatives of 2-amino-thiazol-4-yl-2-hydroxyimino acetic acid
Inventor: VIGNAU MICHEL
IPC: A61K31/546
Filed: 1979-03-30
Abstract: The invention relates to O-substituted oxime derivatives of 2-amino-thiazol-4-yl-2-hydroxyimino acetic acid of the general formula:   <IMAGE> wherein R16 represents a protecting group for the amino radical and R'i represents: a radical -CX-R'13 in which R'13 represents an alkyl radical having from 2 to 4 carbon atoms, an alkoxy group having from 1 to 4 carbon atoms, a phenyl radical or a radical -(CH2)n-NR''2R''3, in which n represents 0 or an interger of from 1 to 4 and R''2 and R''3, which may be the same or different, each represent a hydrogen atom or an alkyl radical with the proviso that both R''2 and R''3 do not both represent hydrogen when n is zero, or R''2 and R''3 together with the intervening nitrogen atom represent a phthalimido, piperidino or morpholino group, and X is oxygen or sulphur;  a radical -CX-NH2; a radical -CHR'4-CO2A''', in which R'4 represents a phenyl or cyano radical and A''' represents an easily-cleavable ester group,  a radical   <IMAGE> a radical -(CH2)n'-R'5, in which n' is an integer of from 1 to 4 and R'5 represents an alkoxy radical having from 1 to 4 carbon atoms, a radical Alk-S(O)ns- in which Alk represents an alkyl radical containing from 1 to 4 carbon atoms and ns is 0, 1 or 2, or an acyl radical having from 2 to 4 carbon atoms; a radical -(CH2)n2-CN in which n2 is 2, 3 or 4; a radical -(CH2)n'-CX'-NH2, in which X' represents a sulphur atom or, when n' is an integer other than 1, an oxygen atom,  a radical   <IMAGE> in which R'7 represents a methyl or amino radical;  a radical   <IMAGE> a radical   <IMAGE> in which the positive charge is satisfied by an external anion or internally; a radical -(CH2)n'-R5a in which R5a is a halogen atom, or a radical -S-Rar in which Rar represents a phenyl radical or a 5- or 6-membered aromatic heteroatoms selected from sulphur, nitrogen and oxygen, the phenyl and heterocyclic radicals being optionally substituted by one or more radicals selected from amino, nitro and cyano radicals and alkyl radicals having from 1 to 4 carbon atoms; a radical Rb which is a radical -(CH2)n'-R5b in which R5b represents an imidazolyl, morpholinyl or N-alkyl piperazinyl radical, the N-alkyl radical containing from 1 to 4 carbon atoms;  a radical -(CH2)n'-N3; or a radical -(CH2)n'-NR18R19 in which R18 represents a group removable by acid hydrolysis or by hydrogenolysis or an alkyl radical having from 1 to 4 carbon atoms and R19 represents a hydrogen atom or an alkyl radical having from 1 to 4 carbon atoms, or R18 and R19 together with the intervening nitrogen atom form a phthalimido group.   The derivatives are useful in the preparation of certain cephalosphoranic acids as described in Application Serial No. 2,017,702.
Patent GB-2111549-A (GB)
Title: Lining water closet pans
Inventor: ROBINSON DIGBY RICHARD
IPC: A47K11/10
Filed: 1981-12-10
Abstract: A disposable paper lining for the lower part of a W.C. pan comprises a shallow cone which is stiff enough to maintain its shape initially when placed in the pan but which can easily be-flushed away. The conical liner 9 can be provided in a folded-flat two- layer condition for sale in a pack. <IMAGE>
Patent GB-2091987-A (GB)
Title: Pants
IPC: A61F13/15
Filed: 1982-01-29
Abstract: Pants particularly for babies comprise an inner waterproof layer (1) and an outer fabric layer (2) surrounding the inner layer. The two layers are joined together at least in the region of the leg openings (4) and elastication is provided in the region of each leg opening in the form of an elastic or rubber band (6) disposed in a freely floating fashion around the leg opening. Preferably the inner waterproof layer is cut to a greater width than the outer fabric pant so that it extends outside the leg opening in the region of the crotch (5). <IMAGE>
Patent GB-2096338-A (GB)
Title: Liquid developers for electrostatic images
IPC: G03G13/10
Filed: 1982-03-01
Abstract: A composition for developing latent electrostatic images comprising a dielectric carrier liquid (e.g. an aliphatic hydrocarbon), charged toner particles and spacer particles having their smallest diameter greater than twenty microns and greatest diameter less than seventy microns disseminated therethrough. The spacer particles are adapted to form an air gap between the developed electrostatic image on a photoconductor, or dielectric support, and the medium to which the developed image is to be transferred. The population of the spacer particles is such that their interparticle distance on the photoconductor is four millimeters or less. The spacer particles may be formed of any desired material e.g. polyacrylate, polyethylene, polycarbonate or actual starch, insoluble in the carrier liquid, and have any desired shape. A tetrahedral pyramidal shape or spherical shape is preferred. The toner particles may have a low charge to mass ratio and an average diameter of 5  mu .
Patent GB-2101479-A (GB)
Title: Cot rocking apparatus
Inventor: PENFOUND ROGER GRAHAM
IPC: A47D9/02
Filed: 1982-03-09
Abstract: Apparatus for rocking a cot, which apparatus comprises means (1) adapted to receive a cot (4), and an electrically operated drive unit (5, 6) for producing a rocking motion of the cot. The cot may be mounted on rockers having a convex lower surface, suspended from a framework or mounted on a pivot arrangement. <IMAGE>
Patent GB-2097478-A (GB)
Title: Magnus effect rotor
IPC: F03D3/00
Filed: 1982-03-26
Abstract: The rotor has end plates 18 to minimise spanwise flow of the boundary layer, which end plates are not secured to the rotor drum 15 to rotate therewith but are fixed against rotation on a stationary axle 17. The rotor may be used for lifting surfaces such as wings, propeller blades and rudders, and for the propulsion of ships using incident winds. <IMAGE>
Patent GB-2095547-A (GB)
Title: Beds
IPC: A61G7/002
Filed: 1982-03-29
Abstract: A hospital bed, couch or a reclining chair comprises a frame (11) supporting a mattress platform (15) comprising four articulated sections of which one (17) forms a backrest, one (16) is fixed and two (19, 20) together form a knee break, the backrest and the knee break being movable independently of one another between lowered positions and raised positions. The knee break and the backrest have associated therewith counter-balance means (27, 28) urging them to the raised positions and brakes such as 29 operative to lock the sections in the lowered and desired raised positions. The counter-balance means comprise a gas spring (34) for the knee break and a combined gas and coiled compression spring for the backrest. The brakes are releasable by handles (32, 31) on the frame to permit movement of the knee break and the backrest. <IMAGE>
Patent GB-2099004-A (GB)
Title: Process for preparing polyolefins
IPC: C08F4/62
Filed: 1982-05-14
Abstract: A catalyst for the polymerisation of olefins in high yield to produce polymers having good particle shape, high bulk density, narrow particle size distribution and a reduced proportion of fines, comprising a solid component and an organometallic compound, said solid component comprising a substance obtained by contacting with each other (i) the reaction product of a silicon oxide and/or an aluminium oxide and at least one compound selected from the group consisting of ethers, esters and ketones and (ii) a substance obtained by having a titanium compound and/or a vanadium compound supported on a magnesium halide and/or a manganese halide.
Patent GB-2100220-A (GB)
Title: Barrel reclaimers
IPC: B65G65/20
Filed: 1982-06-07
Abstract: A barrel reclaimer 12 for loose material which is stockpiled in arcuate form supported at one end through a trolley or trolleys 13 on a rail 14 extending arcuately at the outer side of the arcuate stockpile and at its other end on a mast, column or tower 2 at the stockpile arc centre and conveying means extending the length of the barrel frame interior is arranged to convey material in the direction towards the mast, column or tower. A rotatable boom 4 with a conveyor 5 deposits material to form the pile 1. <IMAGE>
Patent GB-2124094-A (GB)
Title: Toy vehicle
Inventor: LAU KAM HOI
IPC: A63H17/00
Filed: 1982-07-28
Abstract: A toy vehicle having four ground engaging wheels 3, 4 and driven by a spring motor, in which a lever 9 is pivotally mounted and rotated by a cam 7 driven by the motor, the free end 11 of the lever engaging the ground near the front of the vehicle to "rear" the front, and a slew wheel 16 near the rear of the vehicle then contacting the ground, to slew the vehicle onto another course. <IMAGE>
Patent GB-2124569-A (GB)
Title: Vehicle electrical power supply arrangement
Inventor: BEECH IEVEN RAYMOND
IPC: E21F9/00
Filed: 1982-08-03
Abstract: A vehicle e.g. for use in coal mines, chemical or petrol refining works or in corrosive atmospheres has a pantograph (3) which moves a movable connector blade (13) into engagement with discrete conductor elements (8) supported adjacent a linear conductor (1) and biassed away from it by elastomer (7). The blade (13) serially forces the elements (8) into contact with the conductor (1) to give an electrically conductive path to a vehicle carrying the pantograph. The arrangement can be purged by gas fed through ducts (12, 13) to exclude dirt, moisture and other contaminants. <IMAGE>
Patent GB-2128384-A (GB)
Title: A compact alpha-numeric keyboard
Inventor: NASIRUDDIN BADRU
IPC: H03M11/10
Filed: 1982-08-28
Abstract: The proposed system allows a particular key to replace two, three or more keys on a keypad for inputting data into an information processing machine. An appropriate circuit counts the number of quick strokes (one or more) on a key; it also differentiates between quick multiple strokes against normal repeat strokes on the same key. This arrangement therefore provides the possibility of alternative data inputs from one physical key, and makes for very compact alpha-numeric keypads. <IMAGE>
Patent GB-2107403-A (GB)
Title: A bypass system for a steam turbine
Inventor: BINSTOCK MORTON HARVEY
IPC: F01K7/16
Filed: 1982-09-06
Abstract: A bypass system for a steam turbine wherein the temperature of the steam bypassed around the high pressure turbine (12) is accurately controlled by measuring the inlet and outlet temperatures of the boiler reheater (32) and generating an adaptive set point. The set point value is used to govern operation of a spray valve (84) which admits cooling water to the bypass steam path (74). The bypass system also includes, a throttle pressure control (150) wherein the outlet throttle pressure of the boiler is controlled by controlling admission of steam into the bypass path (74) by means of a bypass valve (72) independently of steam flow during turbine start-up. When the turbine (10) is fully operational the throttle pressure control is effected by a comparison of the actual throttle pressure with the desired throttle pressure set point plus some bias. <IMAGE>
Patent GB-2112673-A (GB)
Title: One-piece core plate for a transformer, or the like, and a method and tool for the production thereof
Inventor: DEBUS FRIEDRICH
IPC: H01F27/245
Filed: 1982-09-09
Abstract: A one-piece core plate for a transformer, choke or the like has one or more windows (2,3). To permit one section (8) of the plate to be introduced into a coil or coil former, a slit 9,10 extends from the or each window outwardly. To form an air gap at the slit, at least two deformations (11,12; 13,14) are formed in the plate for each window at positions remote from the slit. <IMAGE>
Patent GB-2108407-A (GB)
Title: Epoxide polymerisation reactor
Inventor: ALBER FERDINAND
IPC: B01J19/18
Filed: 1982-10-18
Abstract: A reactor for use in the continuous synthesis of epoxide resins which occur in the conversion of phenols or halogenated phenols, epichlorohydrin, alkali hydroxide and possibly additives comprises a circular stator 1 and a circular rotor 2 with a driving shaft 2 having surfaces which face each other and with meshing tooth elements 3 which are positioned thereon and which are arranged as toothed circles, the stator 1 being part of a fixed housing surrounding the rotor and the stator having inlets 5, 6 for the starting products, and an outlet 7 for the reaction mixture and a cooling jacket 8 fed through coolant inlets 9. <IMAGE>
Patent GB-2112283-A (GB)
Title: Improvements in or relating to fire-safety systems
Inventor: MOSS CYRIL H
IPC: G08B17/00
Filed: 1982-11-24
Abstract: This invention relates to fire- safety systems for multi-storey buildings, and provides means for clearing smoke from communal units in the building when a fire occurs. The system includes a plurality of fan control units (numbers 1 to 12) each serving to control a pair of fans (P1 to P24). The system also includes a plurality of smoke detectors (SD1 to SD17) connected in groups to detector control units (1 to 11). Each of the fan control units is arranged so that it can deenergise the fans connected thereto, or energise them to run either at low speed or at high speed. The fan control units and the detector control units are interconnected in such a way that, when the mains supply is first connected to the system, all the fans are run up to high speed in succession from the ground floor upwards. Assuming that no smoke is detected by any of the detectors, the fans will then drop back to low speed or stop in accordance with the condition of manual control means in each fan control unit. As soon as smoke is detected, however, by any of the smoke detectors, all the fans will run up to high speed, again commencing from the ground floor upwards. All the fans will reach high-speed operation irrespective of whether they were previously stopped or running at a low speed. <IMAGE>
Patent GB-2112353-A (GB)
Title: An apparatus for winding video tape on reels of a cassette
Inventor: KUBO YOSHIHARU
IPC: G11B23/113
Filed: 1982-12-14
Abstract: An apparatus for winding video tape on reels (4) of a cassette comprises a transfer means (2, 3) for transferring a pair of reels (4) removably mounted on a tray, a rotating arm (3) for transferring a tray in the transfer position (1) of the transfer means (2, 3) to the winding position (5) and another tray in the winding position (5) to the transfer position (1), and a winding means (17-23) for winding video tape on the reels (4) mounted on the tray and transferred to the winding position (5) by the rotating arm (3). <IMAGE>
Patent GB-2121082-A (GB)
Title: Roof weatherproofing element
Inventor: PUGH NORMAN J
IPC: E04D1/36
Filed: 1983-05-23
Abstract: A construction element for weatherproof joining of adjacent roof sections comprises a rigid base, preferably of reinforced fibre glass, which is in use attached to roof battens 12. Centrally of the base is a keyed band 3 for receiving mortar to bed adjacent tiles or slates 10, 13. On each side of the band (3) is a channel defined by two longitudinal ridges 5, 6. The ridges (5, 6) prevent any water leaking between adjacent tiles or slates from entering the roofspaces and direct such water downwardly to the roof guttering. <IMAGE>
Patent GB-2121654-A (GB)
Title: Track identification code recording method
Inventor: POLLOCK WILLIAM A
IPC: G11B27/30
Filed: 1982-04-01
Abstract: In a magnetic disc for a magnetic disc storage system, at least one of the surfaces of the disc being coated with a magnetic material, the disc being adapted to be mounted on a spindle for rotation relative to a magnetic transducer positioned for recording data on and retrieving data from the surface, a plurality of concentric annular tracks (2, 1, 0, 15) being defined on the surface of the disc, each of the tracks being divided into a plurality of sectors, each such sector having associated therewith prerecorded data for identification thereof, the prerecorded identification data including a track identification code, the track identification code being a unit distance code, there is disclosed a method for recording the unit distance track identification code wherein the code has a first uni-directional clock transition (61) at a fixed time in each bit cell and a second uni-directional transition (N-N) at a variable time in each bit cell, the time of the second transition relative to the first transition determining whether the data bit is a one or a zero.