baber/WOPTO huggingface dataset:
Patent GB-2022299-A (GB)
Title: Multi-processor systems using microprocessors
IPC: G06F13/37
Filed: 1979-06-05
Abstract: In a multi-processor system a plurality of microprocessors (1,2) are coupled to a common system bus (10). A master processor (2) has a hold input (33) (HOLD) for bus requests from other processor(s), and an output (34) (HOLDA) for the emission of an acknowledgement confirming that no further access to the system bus by the master processor will take place for the duration thereof. A second slave processor (1) has a transmitter (BUS REQ) for the emission of bus requests requesting access to the system bus to the hold request input of the master processor, and a receiver (BRPI) for receiving the acknowledgements from the acknowledgement output of the master processor which inform the slave processor of its entitlement to access to the system bus. The slave accesses the bus only during receipt of the acknowledgement. Where more than one slave processor is provided the acknowledgement signal from the master processor is fed to a first one of the slaves and is forwarded to successive slaves until it reaches the slave which made the bus request. Alternatively to save time logic may be provided to route the acknowledgement directly to the requesting slave. <IMAGE>
Patent GB-2041705-A (GB)
Title: Computer
Inventor: LEININGER STEVEN
IPC: H03M11/20
Filed: 1979-07-20
Abstract: The computer system of this invention has, as the heart of the system, a CPU1O for providing most data processing by the system under control of a ROM16 which contains only instructions and other data for the CPU. The system also includes RAM18, a keyboard, a video terminal, and a port device in the form of a tape recorder/ player. A master clock 30 initiates timing used throughout the system. A multi- line data bus 14 interconnects the CPU and the different memories of the system including the keyboard and the video RAM. Bi-directional communication is possible on the data bus. The addressing of these different memories is by way of an address bus 12 from the CPU, which is a uni-directional bus. Data to be operated upon is basically stored in the RAM. The keyboard is used for inputting data to the CPU and the video terminal is used for displaying data. Features of the present invention include a special reset scheme for the CPU, a multiplexing scheme for addressing the RAM, a technique for simply altering the control to provide capabilities of different capacity memories, alternate display of characters to provide, for example, either a 32-character line or a 64-character line, an improved keyboard selection scheme, and improved video processing means. <IMAGE>
Patent GB-2055202-A (GB)
Title: Seismic reflection data collection
IPC: G01V1/20
Filed: 1979-07-25
Abstract: The existing common depth point method (CDP) of collecting seismic reflection data has some drawbacks like distortion of signal in stacking, and lack of control of statics and normal move-out in areas of very weak signal, it does not always produce a useful shallow seismic section because of muting, and it is expensive, especially for high multiplicity data. In order to overcome these difficulties seismic reflection data relating to one or more shots or shot arrays (SP) is collected using a number of seismometer groups (G) placed very close to each other at a short, optimum, and preferably constant off-set (CSO). The traces of the recording groups are summed after statics and normal move-out corrections, and the resulting trace is assigned to the mean depth point. Shooting is carried out along various lines in a prospect for continuous profiling using short or long shot point interval as necessary. The seismometer groups may be placed on both sides of a respective shot point or only on the side thereof in the direction of progression along the traverse. If no CDP data exists already for the prospect, some lines are first shot by the CDP method to select the various recording and processing parameters and also for use in the interpretation of the data collected. <IMAGE>
Patent GB-2028115-A (GB)
Title: Floor cleaning device
IPC: A47L13/46
Filed: 1979-08-03
Abstract: A floor cleaning device comprises a holding plate 1 from which bristles 7 project downwardly and penetrate into a floor cleaning pad 3, the bristles being of different length, and the longest bristles having enlarged heads 6. This arrangement ensures that the cleaning pad can be held springily, so that it can follow irregularities in the floor, and that the cleaning pad does not fall off when the holding plate is lifted up from the floor. The plate may be circular and rotated, or it may be rectangular and reciprocated by means of a motor. Alternatively, the device may be operated manually. The pad may be made of plastics fibre fleece, and may contain an abrasive material. <IMAGE>
Patent GB-2057228-A (GB)
Title: Method and means for adaptively filtering near-stationary noise from an information-bearing signal
IPC: H04R25/00
Filed: 1979-08-17
Abstract: An input signal containing information such as speech or music as well as near-stationary noise is applied in parallel to a noise-analysis circuit (102) and a noise-reduction circuit (104), each of which comprises a plurality of bandpass filters (130) covering the range of frequencies associated with the information. The absolute value, or a function thereof, of the output of each bandpass filter (130) in the noise- analysis circuit (102) is produced and smoothed. The presence of near- stationary noise in the input signal is determined by examining the nature of the smoothed signal in each band. If noise is detected, the noise-analysis circuit (102) identifies spectral parameters of the information and/or noise in each band using the smoothed signal therein. In the preferred embodiment of the invention, the bandpass filters of the noise-reduction circuit (104) have gain elements that are adjusted in accordance with the identified parameters to minimize, under some continuous minimization criterion, the effect of the noise in the input signal thus enhancing intelligibility of the information therein. Minimization can be such that the gain- to-parameter relationships are similar to those in Weiner or Kalman filtering theory with a-priori knowledge of the noise, or of the noise and information, except that in this case, a-priori knowledge of the noise is acquired via identification and is not preassumed. <IMAGE>
Patent GB-2058105-A (GB)
Title: Continuous cooking of mixtures containing suspension of starch or similar hydrocolloids
IPC: C08B30/16
Filed: 1979-09-05
Abstract: A process Starch or like hydrocolloid suspensions e.g. of flexible confectionery licorice are continuously cooked and gelatinised in a controlled manner by feeding a slurry to a first of a series of vessels where it is warmed and allowed to swell, fed to a second vessel and subjected to partial gelatinisation, delivered to a third vessel in series where gelatinisation is brought to a predetermined degree and then arrested, and fed to a further vessel where the total solids content is adjusted to a predetermined level. An apparatus for carrying out the process consists of a series of cylindrical vessels or chambers arranged end-to-end, each of which has a rotary mixing and forwarding device which mixes the ingredients and conveys the mixture to the next vessel. Each vessel or chamber may be provided with means for admitting further ingredients and for the controlled addition of heat, for example by steam.
Patent GB-2033662-A (GB)
Title: Fluid flow actuated switches
IPC: H01H35/40
Filed: 1979-09-19
Abstract: The fluid flow switch comprises a valve member 6,7 which is biassed by resilient means 8 into a position blocking the delivery channel 1 of a pump to an outlet 4, but which is displaceable by the fluid pressure out of that position (as shown). Flow is indicated by opening of contacts 9,6, the valve member 6,7 being electrically conducting, and sensed via contact 11 and the body of the pump. The valve member may be separable into two parts 6,7, separation of the ball 7 in a reduced diameter bore 5a occurring at a much higher pressure at which the ball 7 acts as a pressure relief valve to the pump inlet 2. <IMAGE>
Patent GB-2033633-A (GB)
Title: Ideographic coding
IPC: G10L15/00
Filed: 1979-10-01
Abstract: Ideographic character selection and recording is accomplished by apparatus that encodes outputs of individually operable devices each corresponding to an unique character identifier component, for example phonetics. That encoding is used to address a data store containing whole characters or keys thereto organised in sets according to particular ones, preferably combinations, of the character identifier components. A limit of less than 7 device operations is envisaged for data store address completion. A visual display unit will then show all contents of a selected set for selection of the particular one character being entered by said devices. Data identifying that character is then added to an encoded multi- character message, and may simply be printed out locally or transmitted to some more sophisticated utilisation means, such as printing machinery or transmission facilities. <IMAGE>
Patent GB-2062090-A (GB)
Title: Fuel Economising Apparatus
IPC: F02M23/03
Filed: 1979-10-01
Abstract: Fuel economising apparatus for a motor vehicle, comprises inlet means (15 to 17) for admitting additional air into the inlet manifold downstream of the carburettor (13), means for advancing the ignition timing, means (19, 20) for operating the air inlet means and the ignition advancing means simultaneously, and a linkage including a cam device (21), connecting said control means to the engine throttle control (11). A damper unit (19) forming part of the control means brings the economising apparatus into operation when the throttle opening is held constant at vehicle speeds of 30 to 70 m.p.h., and restores the engine to normal operating conditions during acceleration of the vehicle. <IMAGE>
Patent GB-2059840-A (GB)
Title: Crimping device
IPC: B21D39/04
Filed: 1979-10-08
Abstract: A crimping device which may be used on pipe fittings comprises a plurality of dies or die-holders 11 disposed round an axis, camming means 4a for driving the dies or die-holders towards the axis by a camming action so that an article between the dies or die-holders can be crimped, a hydraulic actuator 1 for causing axial relative movement between the dies or die-holders and the camming means, and a hollow stop screw 18 for adjusting the stroke of the hydraulic actuator so as to adjust the radial spacing which would exist between the dies or die-holders when the actuator has completed its stroke. <IMAGE>
Patent GB-2059842-A (GB)
Title: Holding device for a workpiece
IPC: B23K37/04
Filed: 1979-10-09
Abstract: To enable heavy workpieces to be orientated into any desired position without re-clamping, more particularly for welding seams horizontally from above, as is most favourable, a clamping plate or table (3) is pivoted for unrestricted rotation about an axis (5) at the free end of a cantilever arm (2) supported from a stand (1) for rotation about a horizontal axis (13) by flange elements (14, 15) which are adjustable with respect to one another in two directions at right angles to balance a workpiece and the cantilever and table assembly with reference to the axis (13). Electric or hydraulic motor drives (7 and 12) controlled by limit switches may be used to selectively rotate the table and the cantilever arm to bring a workpiece into any desired orientation. A construction in which the cantilever (2) is replaced by a beam stand (1) is also described. <IMAGE>
Patent GB-2065371-A (GB)
Title: Electrical switch
IPC: H01H23/12
Filed: 1979-12-11
Abstract: A snap-action switch has a springy metal strip (1) held in a frame so as to be bowed. Transverse to the strip (1) but clear of it when the switch is in a non actuated position is a rod 5 which supports a pivotable operating element (10), which has operating portions (11, 12) extending towards the springy strip (1). In the non-operated position the operating element (10) is horizontal with its operating portions (11, 12) clear of or resting on the strip (1). To operate either way, the end of the element (10) is depressed, which pushes the strip (1) under the depressed end flat, and bows the other half of the strip outwards. Contacts are provided on tongues (6 and 7) integral with the strip (1), which move as the spring (1) snaps to cause engagement with stationary contacts. The operated positions can be momentary (as shown), i.e. the switch resets on release, or locked. <IMAGE>
Patent GB-2045398-A (GB)
Title: Pressure limiting valve
IPC: B62D5/06
Filed: 1979-12-20
Abstract: The valve for supplying pressure medium to a steering stabilizing unit for a trailing axle of a vehicle in dependence on the loading of a plurality of reference points of the vehicle is provided with two pistons 25, 26 the one of which is subjected to the higher fluid pressure acting to supplement the loading by spring 15 on the self-lapping valve 11, 12, 23 to regulate the pressure at outlet 19. A minimum outlet pressure is determined by the pre-compression of spring 15 by the adjusting device 33. <IMAGE>
Patent GB-2068720-A (GB)
Title: Cleaning apparatus
IPC: A46B17/08
Filed: 1980-01-15
Abstract: Cleaning apparatus, respectively cleaning device therefore with a holder 8 provided with a grip 9 in the longitudinal direction ofwhich a strip of elastic material 11 projecting from this holder is provided, whereby a brush 10 is mounted parallel to this strip of elastic material, at the rear end of which brush a supply line provided with a number of supply openings for supplying a cleaning liquid to this brush is provided, which supply line can be connected to a source of cleaning liquid under pressure. <IMAGE>
Patent GB-2050190-A (GB)
Title: Improvements in or relating to a process for recovering material from a solution
IPC: C07D213/82
Filed: 1980-04-14
Abstract: In the crystallization of a material from a liquid solution thereof wherein normal rapid cooling tends to produce a non-filterable solid, the mixture of material and liquid is subjected to a high shear force field to produce a filterable slurry of the material, with the mixture being subjected to the shear force either during the cooling or subsequent thereto. The process is particularly applicable to recovering nicotinamide from a supersaturated aqueous solution thereof.
Patent GB-2055979-A (GB)
Title: Method of Harnessing Tidal Power
IPC: F03B13/26
Filed: 1980-04-23
Abstract: An airtight canopy C of a flexible but non-stretching air tight material is provided under which air is compressed by a rising tide (and a partial vacuum is formed by a falling tide) and from (or to) which a flow of compressed air (or uncompressed air) can be regulated and conducted by pipes and valves f, g, to (or from) a place where it can be used for industrial purposes. The air tight canopy is anchored to the sea bed in such a way that its perimeter is below the level of the water at all times. That part of the canopy that is required to be kept above the level of the water is held there by means of an interior pylon H or pylons and/or pontoons I and/or balloons filled with a gas that is lighter than air. <IMAGE>
Patent GB-2051929-A (GB)
Title: Petroleum recovery
IPC: C09K8/88
Filed: 1980-06-04
Abstract: Recovery of petroleum from a subterranean reservoir is assisted by contacting the petroleum in the reservoir with a thin film spreading agent which is a polyether polyol or an acylated derivative thereof and which at 25 DEG C: (a) is less than about 1% by volume soluble in water and in isooctane; (b) has a solubility parameter in the range of between 6.9 and about 8.5; and (c) spreads at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm.
Patent GB-2054802-A (GB)
Title: Flow control apparatus
IPC: A61M39/22
Filed: 1980-06-18
Abstract: A flow control apparatus useful in liquid flow systems for blood pressure monitoring has a flow passage with an inlet (30) and outlet (34) provided in a housing (22). A control means having a conical valve seat (33) and ball member (35) for restricting flow through the seat is provided in the inlet (30) of the passage. A valve plunger (38) slidably located within the housing (22) is resiliently biased against a second valve seat (28) provided in the passage walls of the housing. The plunger (38) includes a marine bore capillary passage (54) which effectively bypasses the second valve seat (28), thus permitting a first low flow between inlet (30) and outlet (34) when valve plunger (38) is seated against second valve seat (28). When the plunger (38) is moved from its seat (28), a second higher flow is established for flushing the device. This second higher flow rate is controlled by the valve control means (33, 35) in the inlet of the passage to prevent excessively high flow rates. <IMAGE>
Patent GB-2081373-A (GB)
Title: Actuator for operating barriers
IPC: E01F13/06
Filed: 1980-07-01
Abstract: An actuator intended for opening and closing a passenger admission gate 13 in public transport systems comprises a rotating crank 9 connected by a connecting rod 10 to the gate pivot 12 whereby the gate may be swung between closed and open positions. The crank is driven by a solenoid operated wrap-spring clutch (7) (Figure 1, not shown) having a two-stop collar which limits movement to one-half revolution per engagement, thus successive electrical signals to the solenoid cause alternate opening and closing of the gate. The connecting rod 10 includes opposed coil springs arranged so that movement of the gate may be delayed by relatively low forces during crank movement. The gate is locked in the closed position by a rocking lever (15) (Figure 3, not shown) which is disengaged by a cam (17) (Figure 3, not shown) connected to the crank and rotating with it. <IMAGE>
Patent GB-2056170-A (GB)
Title: Reducing surface states in a field-effect transistor
IPC: H01L21/28
Filed: 1980-07-21
Abstract: A method of manufacturing a field-effect semiconductor device having an electrode structure (13A, B, C) overlying a dielectric layer comprising a first layer (7) sealed by an overlying layer (9) wherein apertures (11) are formed in the sealing layer prior to forming the electrode structure to allow better access of gas to the substrate (1) during a subsequent annealing process to reduce fast surface states at the substrate/first layer interface. <IMAGE>
Patent GB-2065749-A (GB)
Title: Grader
IPC: E02F9/02
Filed: 1980-10-03
Abstract: A land grader for towing as a trailer behind a tractor comprises a horizontal frame 1 to the underside of which is transversely mounted a scraper blade. The frame has a tractor hitching arrangement at the front end and at the rear end is provided with a pair of depending arms 8 each of which carries a land wheel 9. The arms are connected to the ends of an axle 6 journalled in the frame. The axle may be rotated by a hydraulic ram 12 to alter the angular position of the arms relative to the frame so as to adjust the height of the blade. In one embodiment the blade may be rotated in a horizontal plane relative to the longitudinal axis of the frame and may also be canted in a vertical axis. <IMAGE>
Patent GB-2067276-A (GB)
Title: Process for the Development of Underground Store for Fluid
IPC: B65G5/00
Filed: 1981-01-09
Abstract: A method of storing fluid products in underground cavities in water- saturated permeable rock strata which avoids any leakage of stored fluid into the strata as a result of flow of water towards the cavities requires the cavities to be subject at their roof to a hydrostatic load which is greater than the sum of the fluid storage pressure and a shape parameter dependent on the geometry of the cavity. The shape parameter may be determined theoretically or experimentally on a model. <IMAGE>
Patent GB-2091781-A (GB)
Title: Apparatus for releasably anchoring a body in a desired location
IPC: E21B47/00
Filed: 1981-01-23
Abstract: The invention provides apparatus for releasably locating a transducer housing (1) in a borehole (2) formed in rock strata, the housing providing a support member of the apparatus. A wedge arrangement is provided comprising a first wedge component (10) resiliently urged towards the housing by a resilient bias (11) and a second wedge component co-operable with the first wedge component, the second wedge component being connected to an activating arm (34) movable in one direction to cause the wedge arrangement to urge the first wedge component against its resilient bias to anchor the housing in the borehole and movable in another direction to release the housing. <IMAGE>
Patent GB-2093292-A (GB)
Title: Apparatus and methods for analogue-to-digital conversion and for deriving in-phase and quadrature components of voltage and current in an impedance
IPC: G01R15/09
Filed: 1981-02-18
Abstract: In a dual slope analogue-to- digital converter an acquisition period formed by a number of fixed intervals determined by the magnitude of the input signal is followed by a conversion period which consequently has a comparatively small variation in length. Thus a problem is overcome since the large range of conversion periods encountered in previous converters is very much reduced. During the acquisition period an integrator 52, 53, 54 integrates an input signal under the control of a comparator 55, 56 and during the conversion period the integrator integrates a reference signal under the control of a comparator 57. The fixed intervals form a geometric progression, allowing a floating point digital output and efficient automatic control of ranges when the converter is used in a component meter. A phase sensitive detector has input corrections, provided via gain- control operational amplifiers, to switch means which connects them alternately with selectable phase to an output amplifier, under control of a reference signal (Fig. 4, not shown). Two different phases, differing by 180 DEG , are used in turn for each measurement, to permit subsequent elimination of D.C. offsets by subtraction. A component meter employing the converter and the phase sensitive detector is also described. <IMAGE>
Patent GB-2076634-A (GB)
Title: Production of knitted garments
IPC: A41D1/00
Filed: 1981-02-18
Abstract: A succession of seamless tubular garment blanks 11 are knitted integrally on a cylindrical knitting machine, each blank 11 including at one end thereof a welt or selvedge 12 forming part of a knitted elasticated portion 13 which is destined to form an elasticated waistband in the finished garment. The elasticated portion 13 is separated from the next succeeding blank 11 by a steam- soluble draw thread 14. After knitting, the blanks are flattened, pre-shrunk and separated in a single steam- treatment operation. An end of each blank remote from portion 13 is then shaped (25-29) by a cutting machine, and the blank centre-crease (30) folded in a conventional manner. Because the welt or selvedge 12 of each blank is knitted in finished form, there is no need for a separate hemming operation and the make-up of the garment is therefore improved. <IMAGE>