baber/WOPTO huggingface dataset:
Patent GB-2045557-A (GB)
Title: Combining electrical signals
IPC: H04B7/08
Filed: 1979-03-23
Abstract: Two nominally-similar electrical signals, e.g. the outputs of a diversity receiver, are combined by measuring the phase difference at a plurality of frequencies, storing the resultants, and phase shifting the signals to place them in phase at all the frequencies. The amplitudes are likewise compared and adjusted. The correction is made using a Fourier transform circuit (18) fed with stored phases (6) and amplitudes (17) at the various frequencies. The weighting coefficients of a transversal filter (23) are controlled by the output of the Fourier transform circuit (18). If the phase difference becomes excessive, one input signal is inverted. <IMAGE>
Patent GB-2047141-A (GB)
Title: Mould production
IPC: B22C7/02
Filed: 1979-04-17
Abstract: A process for the production of moulds comprises producing a pattern from a combustible material, surrounding the pattern with mould forming material, rendering the mould forming material form stable and igniting the pattern to burn the pattern out, to leave a cavity conforming to the shape of the pattern. The pattern may be formed from wood pulp slurry to which may be added materials to improve combustibility, dimensional stability and rigidity thereof.
Patent GB-2032953-A (GB)
Title: Accelerated Fermentation Process
IPC: C12N1/38
Filed: 1979-04-26
Abstract: The fermentation time for wort is reduced by as much as 25-50% by adding an anti-foaming agent to the wort during fermentation to control the foam level, the anti-foaming agent being an ethanolic extract of ground malt; and continuously vibrating the wort to promote the escape of carbon dioxide.
Patent GB-2021819-A (GB)
Title: Temperature control system
IPC: G01N25/48
Filed: 1979-05-01
Abstract: A temperature control system for a heater surrounding an enclosure and powered by an AC supply, comprises a circuit for generating a constant slope ramp signal having a variable height and period directly related to the value of AC line voltage to compensate for fluctuations in said value. A comparator IC3 (Figure 2) generates a disabling signal whenever the ramp signal equals or exceeds a temperature error signal. For the duration of each disabling signal, a zero-crossing circuit IC4 is prevented from generating control pulses. When the ramp signal is less than the temperature error signal produced by a circuit including a platinum resistance thermometer R15, a control pulse is generated each time the AC line voltage crosses the zero-voltage point; each control pulse switches on a triac TR at the beginning of a half-cycle of AC line voltage, thereby energising a heater R13 connected in series with the triac. The triac trigger circuit is coupled to a zero crossing detector circuit via an optical link including light emitting diode D1 and SCR-PH. The heater may surround an enclosure of a differential thermal analysis instrument. <IMAGE>
Patent GB-2026027-A (GB)
Title: Bacterially produced animal feedstuff
IPC: A23K1/00
Filed: 1979-07-13
Abstract: The feedstuff has a pH of 4.0 to 5.0, a dry solids content of 20.9 to 37% by weight and a crude protein content of 5.8 to 8.8% by weight, and is obtained by fermentation of a nutrient medium containing sources of carbohydrates, proteins, mineral salts and manure or poultry droppings, using a bacterial leaven consisting of thermophilic bacteria of the genus Lactobacterium or Streptobacterium and mesophilic bacteria of the genus Streptococcus, Azotobacterium, Shermanni, Bacterium acidi propionicum, Escherichia coli or Pseudomonas produced by way of a long-term symbiosis and adaptation of the bacteria to a nutrient medium containing sources of carbon, nitrogen, mineral salts and biologically active compounds. The fermentation is preferably at 5 to 35 DEG C for 7 to 14 days.
Patent GB-2028655-A (GB)
Title: Compositions for rectal administration
IPC: A61P31/04
Filed: 1979-07-16
Abstract: A pharmaceutical composition for rectal administration comprises 7-[D(-)-  alpha -(4-ethyl-2,3-dioxo-1- piperazinylcarboxamido)-p- hydroxyphenylacetamido]-3-[5-(1- methyl-1,2,3,4-tetrazolyl)thiomethyl]-  DELTA <3>-cephem-4-carboxylic acid or its pharmaceutically acceptable salt, an oily base, and a nonionic surfactant and/or an anionic surfactant and/or a salt of bile acid and is well absorbed in a living body and maintained in a high concentration in blood for a long period of time.
Patent GB-2030104-A (GB)
Title: Wrapping roller assembly for coin wrapping machine
IPC: G07D9/06
Filed: 1979-09-17
Abstract: A wrapping roller assembly for use in a coin wrapping machine includes three wrapping rollers (1, 2, 3) for holding and turning thereamong a stack of coins to be wrapped, and a movable wrapping paper guide plate (24) which is supported on the shaft (5) of one of the wrapping rollers (3) so as to be movable along the outer circumference of that wrapping roller and serves to guide the leading end of wrapping paper (21) onto the outer circumference of the coin stack. An annular portion (25) of at least one of the wrapping rollers e.g. roller (3), is made of metal for discharging any static electricity on the wrapping paper, whereas the remaining annular portions are made of rubber. <IMAGE>
Patent GB-2034939-A (GB)
Title: Integrated Constant Current Source
IPC: G05F3/24
Filed: 1979-09-18
Abstract: A constant current source comprises a first MOS transistor (T1) which is operated at saturation by means of a fixed potential (UG1) connected between its gate and one of the electrodes of the source-drain path, and whose other electrode in the source-drain path passes a constant current via a current source output (Ua). A second MOS transistor (T2), which is also operated at saturation, has its source-drain path connected between the source-drain path of the first MOS transistor (T1) and the current source output (Ua): its slope exceeds that of the first MOS transistor (T1). <IMAGE>
Patent GB-2036767-A (GB)
Title: Foamed polymeric material based on bitumen and castor oil
IPC: C08G18/64
Filed: 1979-02-28
Abstract: A composition of matter comprising the reaction product of a bitumen and a fatty oil e.g. asphalt and castor oil, and a process of preparation therefor. The reaction product is combined with a ployhydroxy compound and a polyisocyanate, and allowed to react in the presence of a blowing agent, such as water, to form a foamed polymeric material. A particularly suitable blowing agent comprises a mixture of dibutylphthalate and ethanol, the use of which obviates the necessity for a surfactant in the reaction mix.
Patent GB-2044842-A (GB)
Title: Fuel injection pumping apparatus
IPC: F02D41/40
Filed: 1979-11-20
Abstract: A fuel injection pumping apparatus includes a stepped body 11 with a nozzle head 13 mounted at the narrower end and an electromagnetic actuating means 34a located in the wider end. A pumping plunger 26 is mounted in a bore 25 in a valve mounting 24 having a flange located against the step defined between the wider and narrower portions of the body. The mounting also carries an inlet valve element 27 having a head 28 which is spring biased into contact with a seating. The valve element is engaged by the plunger towards the end of its movement to terminate flow of fuel from the nozzle. During the return stroke of the plunger under the action of a spring 38 fuel enters the bore 25 from a chamber 33. <IMAGE>
Patent GB-2038995-A (GB)
Title: Improved flap shapes for an upper surface blowing powered lift system
IPC: B64C9/00
Filed: 1979-12-18
Abstract: In an aircraft having two engines (22) mounted forwardly of the wing and discharging jet exhaust over the wing for augmented lift, a trailing edge flap (34) is positioned directly behind each engine. Each flap has a stowed position for cruise, a rearwardly and downwardly extending position for maximum deflection of the jet exhaust downwardly for STOL operation, and intermediate positions. The upper surface (38) of each flap is curved with the radius of curvature increasing along the chord length from the forward knee (40) of the flap to the trailing edge (42). Each flap is moved from its stowed position, to its fully deployed position in a manner such that its upper surface forms a smooth and continuous extension of the fixed rear portion (60) of the wing upper surface Vortex generators (35) on the upper wing surfaces forward of flaps generate vortices in the jet exhaust that travels over the flap upper surfaces. <IMAGE>
Patent GB-2071166-A (GB)
Title: Driving drafting rollers
IPC: D01H1/22
Filed: 1980-01-10
Abstract: In a textile yarn spinning machine the number of spinning stations can be increased by providing two sets of three lower drafting rollers 4, 5, 6; 11, 12, 13 each of which terminates at an intermediate position along the machine. The ends of each set of the lower drafting rollers are interconnected by drive transmission means each of which is driven by drive means which are interconnected by a driving belt 21 extending along the machine and drivingly contacts a plurality of yarn take-up spindles. <IMAGE>
Patent GB-2039802-A (GB)
Title: Pneumatic Drills for Agriculture
IPC: A01C15/04
Filed: 1980-01-21
Abstract: The air by which the material (e.g. seeds or fertilizer) is pneumatically conveyed by a blower from the source of supply to the point of use is kept dry by having a number of slots 8 in the blower casing and/or at a bend 10 in the ducting 6 through which entrained globules of water are expelled. Each slot 8 is provided with an invariably- bent lip 12. <IMAGE>
Patent GB-2068267-A (GB)
Title: Method for removing particulate matter from a gas stream
IPC: B01D53/50
Filed: 1980-01-29
Abstract: A method for removing particulate matter, for example fly ash, from a gas stream which may contain a noxious gas, for example sulphur dioxide, by injecting charged particles into the gas stream to form a large charged surface area to induce charges on the entrained particulate matter. The injected material may be an adsorbent or an absorbent such as nacholite and may be reactive with the noxious gas in the gas stream. The charged particles contained in the gas stream together with the injected particles are passed through a filter bed of granular medium such as silica rock. As a result of the electrical charge as well as inertial impact forces, the particles become attached to the medium which is continuously removed and replaced after it has captured the particulate matter. The medium, together with attached sorbent additive and particulate matter, may then be either cleaned and recycled or incorporated into a product, for example aggregate for asphalt, the manufacture of which generated the particulate matter. <IMAGE>
Patent GB-2042138-A (GB)
Title: Firesafe fluid control valve
IPC: F16K5/06
Filed: 1980-02-11
Abstract: A valve member 17 when positioned so as to prevent fluid flow through a passage 11 in a valve body 10 engages a ring 14 made of flexible resilient fluorocarbon synthetic resin material, the ring 14 providing a fluid- tight seal between the valve member 17 and a seat 12 on the body 10. In the event of the ring 14 failing, the valve member 17 engages a back-up ring 15 made of a high temperature, non- metallic material which is non-galling, such as graphite. The high temperature properties of the ring 15 thus enable the valve to remain fluid-tight when shut even if the flexible ring 14 is destroyed by fire. The ring 15 can be compression- formed in situ into a shape which ensures close contact with the valve member 17. In the event of the ring 15 also failing, the valve member 17 comes into contact with a metallic ring 13 from which it is normally spaced and thereby restricts the flow of fluid through the valve. This arrangement can be applied to butterfly-type valves as well as to ball-type valves. <IMAGE>
Patent GB-2069755-A (GB)
Title: Probes for making electrical connections to microminiature solid state devices
IPC: H05K3/20
Filed: 1980-02-15
Abstract: A plate (1) has a rib (4) on its surface. The plate and the rib, which may be formed from conductive material or from insulating material coated with a conductive layer, are cut along the broken line (7) using a laser to form an arrangement of probes for making electrical connection to solid state devices. Each probe (10) comprises a flexible, planar strip (11) and a raised tip (12). To obtain good planarity of the probe tips the plate is mounted on an insulating support before it is cut along the broken lines (16) to isolate the probes electrically from each other. <IMAGE>
Patent GB-2049412-A (GB)
Title: Rocking bed
IPC: A47C21/00
Filed: 1980-04-22
Abstract: A rocking bed (1) comprising a frame (2) of substantially rectangular configuration in plan view and adapted for supporting a bed spring net and a matress. The end members (4) of the frame (2) are provided at the bottom with curved parts (9) intended to rest on the floor surface. At their respective ends the parts (9) have movable, e.g. pivoted feet (10) adapted to be moved from a retracted position where the bed (1) is allowed to rock to an extended position where the movable feet (10), by protruding downwards from the parts (9) to abut the floor surface, prevent the bed (1) from rocking. <IMAGE>
Patent GB-2080430-A (GB)
Title: I.C. engine starter motor pinion assembly
IPC: F02N11/00
Filed: 1980-07-16
Abstract: Starter motor (11) drives pinion shah (14) which carries movable cylindrical member (15), coupled thereto by a helical spine coupling (14a/15a), pinion gear (16) fitted for free rotation on the pinion shaft, and unidirectional clutch (19) provided between the pinion gear and the movable cylindrical member which are coupled together for axial movement in unison. To prevent pinion gear (16) from premature detachment from a ring gear (23) of the internal combustion engine before the stable running condition of the internal combustion engine is reached, the device further includes: a pinion gear retreat- prevention member (27) provided on the outer periphery of the movable cylindrical member (15) and axially fixed in position but radially movable relative to the movable cylindrical member; and a lock member (29) provided at a position in the vicinity of the pinion gear retreat-prevention member so as to be engageable, when it is radially displaced by centrifugal forces, with the pinion gear retreat- prevention member. <IMAGE>
Patent GB-2081989-A (GB)
Title: DC-DC converter
IPC: H02M3/335
Filed: 1980-08-07
Abstract: In a DC-to-DC converter of the so-called fly-back type, the input DC drives a transistor (2) in a pulsed manner via a pulse width modulator (7). The transistor current flows in the primary of a transformer (4), and one secondary drives a filter plus rectifier unit (5) to give the DC output. Regulation is effected by a comparator (9) which compares the DC output with a reference, the result of the comparison exercising a control on the pulse width modulator (7). On initial switch-on, the transistor (2) is driven from a minimal pulse generator (1) via an OR gate (3) whose other input is driven from the pulse width modulator. To build up to the required output level, there is another secondary on the transformer whose output is used to control the pulse width modulator. It should be noted that the invention is also applicable to DC-to-DC converters of the so-called forward type. <IMAGE>
Patent GB-2060336-A (GB)
Title: Ploughs
IPC: A01B79/00
Filed: 1980-09-15
Abstract: A plough comprises a lifting member (8), a turning device (9) and a conveyor (19). The conveyor (19) rotates to drive the furrow slice through the turning device (9). As it passes through the turning device (9) the furrow slice is turned and deformed such that, when re-deposited in its own furrow, its central region is elevated relatively to its sides (Figure 4). The turning device may be rotated in operation, or it may be stationary. Its axis (a) may be inclined to the horizontal. <IMAGE>
Patent GB-2091557-A (GB)
Title: Toxicity reduction
IPC: A01N25/32
Filed: 1981-01-22
Abstract: The mammalian toxicity of an aqueous formulation of a toxic agricultural chemical, such as chlormequat, diquat or paraquat, is reduced by adding to the chemical a coating agent that acts to seal the chemical to the leaf of a plant; the coating agent being added in an organic phase that is of lower specific gravity than, and is substantially immiscible with, the aqueous formulation. <IMAGE>
Patent GB-2068456-A (GB)
Title: Internal combustion engine throttle valve control linkage
IPC: F02D11/10
Filed: 1981-01-22
Abstract: The maximum opening of the butterfly 17 by the pedal 10 is limited by a follower 19 engaging a cam 20 operated by an electric motor 21, a spring 15 accommodating separation of the links 14, 16 due to greater pedal depression. Springs 9 and 22 provide pedal and butterfly return bias and the cam portions 20a and 20b provide respectively small and large follower displacement for a given motor rotation. A microprocessor circuit 23 receives pedal and butterfly position and engine and vehicle speed signals to provide economy butterfly settings and a desired idling speed. <IMAGE>
Patent GB-2102282-A (GB)
Title: Bed back rest apparatus
Inventor: DE PARKER P C
IPC: A47C20/04
Filed: 1981-05-22
Abstract: A bed back rest unit including an inflatable unit (9) which serves to control the inclination of a back rest plate (2) with respect to a base plate (6). The inflatable unit (9) is constituted by an inflatable bladder, ball or the like article made of rubber or plastics material. The inflatable member is preferably provided with ears which are firmly anchored to the base plate, one ear (12) connecting with an air inlet pipe (18). A multiway switch controls a solenoid valve which allows the user to lift or lower the back rest plate or to hold it in a required position. <IMAGE>
Patent GB-2091090-A (GB)
Title: Castors
IPC: B60B33/02
Filed: 1981-06-16
Abstract: There is disclosed a castor assembly comprising a central supporting body having a downwardly opening bore and a transverse cradle at the lower end of the base; a T shaped axle piece with its stem slidably housed in the bore and the arms thereof in the cradle; a wheel rotatably coupled to each arm; a coil spring in the bore acting on the stem for pushing the hubs of the wheels against braking fins extending from the cradle housing when no compressive load is applied, but releasing the wheels when loaded; and a housing surrounding the wheel and supporting body and effective to conceal from view the wheels and to engage with a peripheral edge against the wheels to prevent these latter from axially disengaging from the axle piece. <IMAGE>
Patent GB-2082996-A (GB)
Title: Reservoir for Feeding Rod-like Articles
IPC: B65G21/18
Filed: 1981-07-13
Abstract: A variable capacity reservoir for cigarettes or similar rod-like articles, in which an helical support surface 22 is reversibly drivable from a storage position (24), in which it is compactly stored with adjacent helical turns closely spaced, to an operative position (26), in which adjacent helical turns are spaced apart to allow a stack of the articles to be conveyed. Pairs of pinch rollers (28) engaging the inner edge of the strip (22) are provided for moving the strip. The strip (22) may be made up of a series of substantially annular sections, each of which has been severed along a substantially radial line, and with adjacent sections joined to each other in stacked formation. <IMAGE>
Patent GB-2106322-A (GB)
Title: Electric tilt switch
Inventor: ARNOLD ARTHUR J
IPC: H01H35/02
Filed: 1981-09-25
Abstract: A tilt switch comprises a fixed contact (12), a movable contact (14) biassed towards the fixed contact (12), actuating means (16), and rolling means (20) positioned on a guide path (19) and movable, by tilting of the switch between a first position in what it holds the movable contact (14) out of engagement with the fixed contact (12) and at least one other position in which it permits the movable contact (14) to engage the fixed contact (12). <IMAGE>
Patent GB-2090435-A (GB)
Title: Control system for clothes drier
IPC: D06F34/08
Filed: 1981-12-22
Abstract: The present invention relates to a control system for a clothes drier. The system comprises a device for detecting a certain predetermined intermediate rate of humidity, said device being based on measurement of the conductivity of the clothes, associated with which is a time-lag device intended to obtain the desired final rate of humidity and a selector for this final rate of humidity desired by the user. It also comprises a device for measuring successive rates of humidity existing before the predetermined intermediate rate of humidity is reached, a device for determining the slope of the curve of evolution of the conductivity of the clothes, as a function of time, a device for memorizing said slope and means for determining the time still required to obtain the desired final rate of humidity, as a function of said slope. <IMAGE>
Patent GB-2113306-A (GB)
Title: Rotary positive-displacement fluid-machines
Inventor: KNIGHT LLOYD GARNET
IPC: F04C9/00
Filed: 1982-01-07
Abstract: A pump has a rotor 6 in the form of a cylindrical permanent magnet within which the flux is orientated axially thereof so that it can be rolled along the inner peripheral wall of a pumping chamber within a stator 1 by a rotating magnetic-field produced by a polyphase winding (not shown) in the latter. Fluid is thereby displaced by the rotor from an inlet port 2 to an outlet port 3. The magnetic field may be a "stepping" one, instead of rotating. Alternatively, the rotor revolves around the chamber without rotating about its own axis, a spring- loaded vane 5 then being replaced with a flexible vane attached to both the rotor and the stator, Figure 2 (not shown). <IMAGE>
Patent GB-2093544-A (GB)
Title: Improvements in vehicle braking systems
IPC: B60T8/32
Filed: 1982-02-10
Abstract: A vehicle anti-skid braking system, particularly for motor cycles, employs a pilot brake 10 for the purpose of generating operating power for the anti-skid system. The pilot brake is mounted for limited movement about pivot 11 so that torque reaction moves it to actuate, for example, a fluid pressure pump 37, 38. Such a pump actuated by the pilot brake may be used to control application, release and re-application of a main brake via port 21 or may act only to return to a master cylinder via port 20. fluid released from the main brake during an anti-skid operation. A skid responsive solenoid 30 moves a valve member 25 between seats 26 and 27. <IMAGE>
Patent GB-2114411-A (GB)
Title: Flexible fishing sinker
Inventor: LEE DO-HAE
IPC: A01K95/00
Filed: 1982-02-11
Abstract: A flexible fishing sinker which is expansible, contractible and deformable according to various underwater conditions comprises a flexible tube (1) which is made of sort rubber or sort synthetic resin material and which is filled with a number of small-sized solid metallic balls (2) and a liquid lubricant (3). In the event that the sinker is caught among rocks or seaweeds, it expands, contracts or gets deformed in such a manner that it can escape in the pulling direction of the fishing line without any difficulty. <IMAGE>
Patent GB-2096826-A (GB)
Title: Semiconductor integrated circuit devices
IPC: H01L21/312
Filed: 1982-03-01
Abstract: In a semiconductor integrated circuit device having a polyimide-type resin film 16 formed on a semiconductor substrate 1 and an aluminum wiring layer 17 formed on the surface of the polyimide-type resin film the wiring layer 17 contains between 0.1% to 10% by weight silicon to increase corrosion resistance. Alternatively nickel or boron may be used in place of silicon. <IMAGE>
Patent GB-2100066-A (GB)
Title: Outside television broadcast van
IPC: H04N5/28
Filed: 1982-05-24
Abstract: A television outside broadcast van contains sound and video equipment constructed as a plurality of self-supporting units 1 to 10 detachably secured together in a selected one of a plurality of different possible arrangements. To this end the units have standardized companion dimensions, permitting the same units to be adapted to the interior of vans of different dimensions by re-arrangement of their relative positions. <IMAGE>