baber/WOPTO huggingface dataset:
Patent GB-2191653-A (GB)
Title: Differential pulse code modulation
Inventor: LEVY DAVID FRASER
IPC: H03M3/04
Filed: 1986-06-10
Abstract: A differential pulse code modulation apparatus comprises error signal generating means 10 for receiving an input data signal X(i) comprising successive words and operative to produce therefrom an error signal E(i) of which successive words each represent a difference between a word of the input data signal and a predicted value therefor, a compander 20 for compressing and expanding the error signal E(i) to produce a received signal RX, an adder 16 for adding successive words of the received signal with successive words of a predicted value signal X(p) representing the above-mentioned predicted values to produce a received error signal X(o), and a predictor 28 responsive to the received error signal X(o) to produce the predicted value signal X(p), the predictor comprising a plurality of adders AO etc. and a plurality of delay elements LO etc. and being operative during each of a plurality of successive clock periods to form a word of the predicted value signal X(p) by weighting and summing together a plurality of words of the received error signal, the adders being distributed among the delay elements such that, in each clock period, the adders all operate substantially simultaneously with one another. Because the adders all operate together increasing the number of stages of delay elements and adders does not increase the time required to predict a signal. The time needed may be reduced still further by forming the subtractor 10 as a plurality of subtractors and delay elements (Fig. 9). <IMAGE>
Patent GB-2184678-A (GB)
Title: Lathe
Inventor: MARTINEZ MIGUEL A
IPC: B23B21/00
Filed: 1986-07-24
Abstract: The lathe has a fixed horizontal headstock and tailstock (3) and a bed (1) having guides (7) and (8) on which a carriage (2) is mounted for horizontal movement. A tool post (5) with a cutter (6) is mounted on a transverse carriage (11) for transverse movement towards and away from a workpiece guided by a guide (10) on the carriage (2). The toolpost and guide (10) are located to the rear of and above the headstock and tailstock and the guide (10) is inclined downwardly and forwardly so that the cutter attacks the workpiece from the rear upper zone. This improves the accessibility of the machine for the operator and makes it easier for him to observe the cutter during machining. The front face of the bed and guides (7) and (8) are located to the rear of the headstock and tailstock and inclined forwardly and downwardly. This facilitates fall of the chips and their extraction by means of an exhauster of the parallel type or towards the pit of the lathe. The plane through the centre of gravity of the toolpost (5) in its working position, falls between the guides (7) and (8) to increase stability. <IMAGE>
Patent GB-2192348-A (GB)
Title: Scrubber/degasser apparatus
Inventor: MOJONNIER HARRY GRINDLEY
IPC: B01D19/00
Filed: 1987-01-30
Abstract: A scrubbing/degassing apparatus comprises a degassing column 20 for removing extraneous gaseous matter from water; and a flow control arrangement 30 for controlling a flow of water to the degassing column 20. The flow control arrangement 30 comprises an upper reservoir 32 mounted above the degassing column 20 for receiving a supply of water, a controllable valve 26 responsive to predetermined control signals for regulating the flow of water to the upper reservoir 32, a level sensing means 28 operatively coupled with the upper reservoir 32 and responsive to the level of water therein for producing said predetermined control signals in a predetermined systematic fashion in accordance wiih this level, and structure 40 defining an adjustable orifice of selectively variable size intermediate the upper reservoir 32 and the column 20 for delivering water from the upper reservoir to the column; the rate of flow of water from the upper reservoir 32 to the column 20 being controlled by the level of water in the upper reservoir 32 set by the level sensing means 28 together with the selected size of the adjustable orifice 40. <IMAGE>
Patent GB-2189971-A (GB)
Title: Agricultural transplanter
Inventor: LANGLOIS PETER
IPC: A01C11/02
Filed: 1987-04-21
Abstract: An agricultural transplanter comprises a sub-frame 2 mounting a carousel 9 comprising a hollow shaft 15 serving as a module discharge shute terminating in outlet orifice 16 and a rotor 18 divided by webs 21 into compartments 20. Plate 22 welded to rotor 18 has lugs 23. Driving wheel 11 is ground-engaging and concentrically mounted therewith and fixed thereto are studs 33 which engage a flange 39 terminating arm 64, which forms part of a transmission system. Upon contact between a stud 33 and flange 39, arm 64 is displaced to tension spring 57 so that it stores drive and pusher plate 50 is displaced in a direction reverse to that of transplanter movement. Displacement of arm 64 also retracts socket 45 from its engagement with a lug 23. Continued motion of driving wheel 11 releases plate 39 from its engagement with stud 33 and enables stored drive in coil spring 57 to return the socket 45 to a next-in-sequence lug 23 so as to drive plate 22 and carousel 9 in a clockwise direction. A module manually introduced by an operator into one of compartments 20 is brought into register with a rectangular opening 17 in shaft 15 and discharged via the shute to shoe 10. Rotation of carousel 9 is accompanied by retraction of arm 49 and pusher plate 50 in readiness for a repeat cycle of the operations already mentioned. <IMAGE>
Patent GB-2215018-A (GB)
Title: Liquid heaters
Inventor: HAMMOND BRIAN WILLIAM
IPC: F24H1/18
Filed: 1988-08-04
Abstract: A heater (10) of the kind which includes a vessel (11) in which liquid is contained, and means (20) to heat the liquid in the vessel has an inlet (13) by which liquid can be fed into the vessel, an outlet (18) through which liquid may flow to a point of delivery (19), the inlet comprising a supply conduit (13) connected to a liquid supply, means (14a) to mix gas with liquid flowing along the supply conduit (13), a gas trap (25) to collect gas passing with the liquid from the supply conduit within the vessel, means (30) to release gas collected by tap (25) into the vessel, at least when the liquid flow along the supply conduit (13) is stemmed, whereby an expansion space (32) is created in the vessel into which liquid can expand during subsequent heating, the expansion space (32) being vented from the vessel; via outlet (18). <IMAGE>
Patent GB-2227514-A (GB)
Title: A device for securing together two elongate members end-to-end
Inventor: SMITS MARINUS ALBERTUS LUCIA
IPC: E04G7/20
Filed: 1988-11-29
Abstract: A device A for securing together two elongate members, for example scaffolding tubes, has a portion 1 like a circular cylinder with a slot 11 extending along it. Portions 2 and 3 extend from the portion 1 on opposite sides of the slot 11 and lead to inwardly-directed portions 4 and 5. Two bolts 7, each with a shank having a square portion 8, pass through square holes in the portion 2 and round holes in the portion 3 and carry nuts 12 which can be tightened so that portion 1 grips two elongate members inserted in opposite ends of the portion 1. Ridges 14 and 15 formed in the device A increase the area of contact with the elongate members <IMAGE>
Patent GB-2212512-A (GB)
Title: Iron-, cobalt- and nickel-base alloy having low contents of sulphur, oxygen and nitrogen
Inventor: OTOTANI TOHEI
IPC: C22C19/03
Filed: 1989-01-23
Abstract: The alloy contains 0.005 to 7.0% aluminium, 0.005 - 7.0% silicon, 0.0005 - 0.005% magnesium, 0.0001 - 0.005% calcium, 0.0001 - 0.002% oxygen, 0.0001 - 0.002% sulphur, and 0.0005 - 0.003% nitrogen. The alloys are made by:   (a) holding a molten alloy in a container selected from the group consisting of a lime crucible, a lime crucible furnace, a converter and a ladle lined with a basic refractory consisting of 15-85% of calcium oxide (CaO), and 15-75% of magnesium oxide (MgO), wherein said alloy consists essentially of at least one major ingredient selected from the group consisting of iron (Fe), nickel (Ni), and cobalt (Co); (b) adding at least one additive, based on the molten alloy, into said molten alloy in an atmosphere selected from the group consisting of a non-oxidizing atmosphere and a vacuum, wherein said additive is selected from the group consisting of aluminum (Al), aluminum alloys, silicon and silicon alloys; (c) desulphurizing, deoxidizing and denitrifying said molten alloy under an atmosphere selected from the group consisting of a non-oxidizing atmosphere and a vacuum. h
Patent GB-2220998-A (GB)
Title: Motor vehicle automatic transmission including two countershafts
Inventor: KASHIWASE HAJIME
IPC: F16H3/08
Filed: 1989-05-30
Abstract: An automatic transmission for a motor vehicle has a torque converter (1) which couples an engine output shaft to a gear train (4-30), the gear train couples the torque converter to an output drive shaft (22) and the drive shaft is coupled to drive wheels of the vehicle. The gear train consists of a main shaft (4) coupled by means of at least two change ratio gears (7-9) to corresponding counter gears (10, 11, 13, 14) mounted on a pair of counter shafts (5, 6) mounted to rotate in parallel with the drive shaft. Any one of the counter gears can be engaged by means of hydraulic clutches (17, 18, 19, 20) with the associated counter shaft which is coupled to the output drive shaft (22). A reverse gear selector (28) is mounted on the output drive shaft. The output drive shaft (22) carries a gear (23) meshing with a ring gear of a differential. 
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Patent GB-2237103-A (GB)
Title: Central heating radiators
Inventor: FOWLER ALAN JAMES
IPC: F24H9/12
Filed: 1989-09-05
Abstract: An airlock/liquidlock for use in preventing fluid loss from a central heating radiator during repair and/or replacement of valves has an open-ended through passage, the ratio of the length of the passage to its diameter being such that fluid does not flow through the passage when the valve is removed. The device may be an integral part of the radiator or screwed thereinto. <IMAGE>
Patent GB-2225139-A (GB)
Title: Method for spectrum matching
Inventor: CHADWICK A T
IPC: G01N30/86
Filed: 1989-11-15
Abstract: A method for matching one spectrum to another, when one spectrum has smoothly varying positional and amplitude instrumental distortions which are superimposed on amplitude differences which represent intersample variations, comprises creating a one-to-one mapping (as shown) between peaks in the two spectra which maximises the correlations between the local structures around the peaks and simultaneously minimises the curvature of the distortions. <IMAGE>
Patent GB-2239454-A (GB)
Title: DNA corresponding to miscanthus streak virus gene
Inventor: CHATANI MASAAKI
IPC: C12N15/83
Filed: 1989-12-29
Abstract: An isolated or cloned infectious circular DNA corresponding to gene of Miscanthus streak virus, linear DNA derived from the circular DNA, and DNA fragments thereof, are promising as starting material for construction of vectors for gene recombination of plants, and as probes for screening similar DNAs.
Patent GB-2234050-A (GB)
Title: Indicating state of water storage tank of heating/water heating apparatus
Inventor: GLEDHILL HOUGHTON AINSWORTH
IPC: F24D19/10
Filed: 1990-06-19
Abstract: An apparatus for providing domestic hot water comprises a water storage tank 10, and a boiler 12 for heating the water in the tank. The boiler has its own thermostat 38 which switches the boiler and its pump 36 on and off depending upon the temperature of the water issuing from the boiler. The storage tank has its own thermostat 40 which also controls the boiler such that as long as the storage thermostat is satisfied the boiler is switched off. An indicator means such as a neon lamp 42 is provided to indicate to an installer an undesirable situation, not readily noticed when installation is being effected, wherein the boiler switches off without the store thermostat being satisfied; the lamp 42 is extinguished when the store thermostat 40 is satisfied. <IMAGE>
Patent GB-2238765-A (GB)
Title: Support apparatus for a movable track
Inventor: BIRD WILLIAM JOSEPH
IPC: E21F17/06
Filed: 1990-07-07
Abstract: Support apparatus indicated generally at 10 comprises track means indicated generally at 12 and runners 14, 16. The runners 14 hang from a track 22 to support an article hung below. The runners 16 are permanently attached to a fixed support 18 to allow a track 20 to hang from them. The runners 14 can move along the track 22, and the runners 16 can move relative to the track 20. Consequently, the tracks can be moved relative to the fixed support 18, and the article being supported can be moved relative to the tracks and the fixed support. The apparatus is for particular use in a mine roadway, the runners 14 being attached to a cable feeding power to a machine which can be advanced along the roadway. <IMAGE>
Patent GB-2237144-A (GB)
Title: Multilayered leadframe with interdigitated leads
Inventor: JONES KENNETH L
IPC: H01L23/50
Filed: 1990-09-28
Abstract: A leadframe for accomplishing electrical connection to an electronic device is formed of two or more layers, each having a set of leads extending therefrom. The segments are assembled one above the other so that the leads of one set are interdigitated with the leads of the other set along the length of the leads. The effective lead spacing of the leadframe is therefore less than that for any of the segments and is less than 0.254mm in some portion of the interdigitated region. The approach is particularly useful for stamped leadframe segments, because a minimum lead spacing for any segment is determined by the stamping operation. <IMAGE>
Patent GB-2237441-A (GB)
Title: An improved water cooled nuclear reactor and pressuriser assembly
Inventor: GARDNER FREDERICK JAMES
IPC: G21C15/18
Filed: 1990-10-17
Abstract: A water cooled nuclear reactor (10A) comprises a reactor core (14), a primary water coolant circuit (18, 20) and a pressuriser (44A) arranged as an integral unit in a pressure vessel (12). The pressure vessel (12) is divided into an upper chamber (28) and a lower chamber (30) by a casing (26), the reactor core (14) and primary water coolant circuit (18, 20) are arranged in the lower chamber (30) and the pressuriser (44A) is arranged in the upper chamber (28). A plurality of spray pipes (58) interconnect a steam space (48) of the pressuriser (44A) with the downcomer (20) of the primary water coolant circuit (18, 20) below a heat exchanger (32). A plurality of surge ports (54) interconnect a water space (46) of the pressuriser (44A) with the primary water coolant circuit (18, 20). The surge ports (54) have hydraulic diodes (56) so that there is a low flow resistance for water from the water space (46) of the pressuriser (44A) to the primary water coolant circuit (18, 20) and high flow resistance in the opposite direction. The spray pipes (58) provide a desuperheating spray of cooled water into the pressuriser (44A) during positive volume surges of the primary water coolant. The pressuriser arrangement may also be applied to integral water cooled reactors with separate pressurisers and to dispersed pressurised water reactors. The surge ports also allow water to flow by gravity to the core in an emergency. <IMAGE>
Patent GB-2238971-A (GB)
Title: Reducing mill
Inventor: BORTOLI H L
IPC: B21B17/14
Filed: 1990-10-24
Abstract: Flat strip is rolled into a tubular intermediate product, and is then passed through a reducing mill having a plurality of passes, each pass comprising at least three work rolls 30, 31, 32 engaging the workpiece at angularly spaced positions in a common plane. The final product may be welding rod. <IMAGE>
Patent GB-2242643-A (GB)
Title: Method and apparatus for bundling and removing stacks of pieces cut from layups of sheet material
Inventor: GERBER HEINZ JOSEPH
IPC: B26D7/06
Filed: 1990-12-12
Abstract: The method and apparatus provide for stacks of pattern pieces cut from a layup of sheet material by a cutting tool 19 to be bundled by fasteners inserted by a bundler 21. The cutting tool 19 and bundler 21 may both be mounted to a two-axis carriage system and share a common controller 40 which guides the cutting tool in response to control data, the bundler inserting fasteners into locations in the layup determined from the same data, preferably outside the stitching line. Fasteners (50a-e, Fig 5C) fed through the bundler 21 by a wheel (84 Fig 3) are pushed individually into a stack through a channel section needled (88, Fig 7) which has been driven through the layup into a bristle base 18. Alternative fasteners (100a or b Figs 9A, B) are staples with barbed legs. The controller then provides the exact locations of the inserted fasteners to an automatic take-off device 140 which thereafter seizes the cut stacks of pieces by means of the fasteners and removes them from the layup. Identifying information may be printed upon, or a label applied to, the fastener within the bundler or by a separate printer before or after insertion of a fastener in the layup. Bundling and take-off may take place at a separate station from the cutting. <IMAGE>
Patent GB-2243160-A (GB)
Title: Molded ceramic articles and production method thereof
Inventor: KUWABARA MITSUO
IPC: B23K35/22
Filed: 1991-02-12
Abstract: A method of producing a molded ceramic article comprises the first step mixing powdery raw materials and a liquid additive, thereby obtaining a mixed raw material, the second step press-molding the mixed raw material obtained in the first step in a hydrostatically applied condition of pressure, thereby removing an excess of the liquid additive to obtain a preform, and the third step calcining the preform obtained in the second step to obtain a molded ceramic article. The molded ceramic article comprises, as a principal component, copper and, as essential components, Cr and Ni within composition ranges of 0.1 </= Cr </= 2 wt. % and 0.1 </= Ni </= 10 wt.% and further at least one additive component selected from the group consisting of the following composition ratios: 0 < Fe < 5 wt. %, 0 </= Co < 5 wt.%, 0 </= Al < 10 wt.%, 0 </= Ti < 20 wt.%, 0 </= Mo < 3 wt.%, 0 </= Si < 3 wt.%, 0 </= V < 3 wt.%, 0 </= Mg </= 1 wt.% and 0 </= C < 5 wt.%, and has at least one composition range selected from the group consisting of the following composition ratios: 0< O2 < 10 wt.%, 0 < N2 < 5 wt.% and 0 < B < 10 wt.%. <IMAGE>
Patent GB-2241715-A (GB)
Title: Filter paper of fibrlls plus filter-active particles
Inventor: BREITBACH PETER P
IPC: D04H1/42
Filed: 1991-02-19
Abstract: In a filter bed 11 for the solid/fluid separation of media which contain substances which attack or dissolve cellulose, for example cellulase-containing enzymes, there is provided a wet laid paper of filter active particles and polyolefin fibrid particles 12, which are matted and anchored in one another, which structure may contain in addition up to 20 weight percent of narrower fibrid polyolefin fibres and/or polyolefin fibres which have a fibre length of up to 5mm and which have lust started to fibrillate, in order to strengthen the sheet formation. The filter-active particles, in particular kieselguhr particles and/or perlite particles having grain sizes of 5 to 100 microns, are embedded in this cellulose-free fibre matrix. <IMAGE>
Patent GB-910395-A (GB)
IPC: H05B3/34
Abstract: 910,395. Electric pads or blankets. WILLIAMS (APPLIANCES) Ltd., FREDERICK. April 5, 1961 [July 5, 1960], No. 23935/60. Class 39 (3). ' In an electrically heated pad or blanket the heating element 17 is interposed between two layers 14 and 18 of synthetic thermoplastic material, e.g. polyvinyl chloride foam or wadding contained between outer layers 13 and 19 of fabric, e.g. cotton, cotton/rayon mixture or wool mixture which are joined together and to the thermoplastic layers by fusion of the latter produced by welding along spaced lines 21, e.g. by a dielectric welding machine. The layers are assembled on a jig (Fig. 4) comprising an aluminium plate 10 having two sets 11 and 12 of pointed steel pins which penetrate the layers and around which the element 17 is wound. A mains lead 16 is attached to a canvas square 15 placed between the layers 14 and 18.
Patent GB-2254915-A (GB)
Title: An electric oven
Inventor: CHANG KWEI TANG
IPC: F24C15/00
Filed: 1991-04-15
Abstract: An electric oven comprises control unit 1 four alloy channelled posts 2 connected thereto at the four corners thereof for mounting three glass panels 3, cross bars and corner connectors (not shown), a front panel 4 and a base 7. A rack 5 is fastened inside the oven for holding foods. Two paw means 41 and two spring means 51 are connected between the rack and the front panel so that the front panel can be rotated to an open position. A grease collector 6 can be drawn out for cleaning and then pushed back into place. <IMAGE>
Patent GB-2248202-A (GB)
Title: Process and apparatus for finish grinding
Inventor: WOLTERS MARTIN
IPC: B24B19/12
Filed: 1991-07-08
Abstract: A process for the finish grinding of the eccentric cam faces on the cams 2 in a camshaft 1, more particularly a vehicle engine camshaft, has the camshaft 1 driven at a constant rotary speed about its axis, and optionally also reciprocated in its axial direction. The finish grinding is effected with the aid of at least one finishing grindstone 5, which is urged under a prescribed contact pressure against the cam face. Within each revolution of the cam 2 the contact pressure is reduced by a certain decrement on reaching the peak of the cam 2. The decrement is so selected that the material removal rate becomes approximately constant over the entire cam periphery. Also described is an attachment for a finish grinding machine for carrying out the process. <IMAGE>
Patent GB-2258353-A (GB)
Title: Excess current protection in coaxial cable
Inventor: BRAITHWAITE IAN
IPC: H01R13/68
Filed: 1991-08-01
Abstract: An excess current-protected coaxial cable has a circuit-breaking device (e.g. a fuse) and a low-pass filter (L1, L2, C) connected in its shield conductor. Alternatively, the circuit-breaker and filter may be ioined in series with terminals for connection between the shields of two coaxial cables. The inner conductor may also be fused, and a neon lamp may show whether the first fuse has blown. <IMAGE>
Patent GB-2246522-A (GB)
Title: Drive arrangement for a treadmill
Inventor: VANJANI GOVIND WADHUMAL
IPC: A63B22/02
Filed: 1991-08-01
Abstract: A drive arrangement for a treadmill includes an electric motor having a stator winding and an armature winding connected in series with each other and in parallel with a rectified power source that has a DC component and an AC component. The series-connected (universal) motor is capable of producing torque for driving the endless belt of the treadmill from both the AC component and the DC component of the power source. Speed control circuitry of the type normally used with DC motor drives can be employed, while reducing the degradation in motor performance which would occur if a DC motor is used due to the presence of the AC component in the rectified power source. Other features include the use of a speed measuring device (tachometer) mounted adjacent a rotating shaft of the motor to provide direct feedback of motor speed to the speed control circuitry. <IMAGE>
Patent GB-2247497-A (GB)
Title: Hinge assemblies
Inventor: HAMMERTON JOHN VICTOR
IPC: E05F1/06
Filed: 1991-08-22
Abstract: A self-closing or self-aligning hinge assembly for a door comprises a first member 1 including an inclined cam surface 5 and a second member 7 rotatably mounted on a pivot spindle 3 extending from the cam surface 5. A cam follower 9 is carried by and movable with respect to the second member 7 in the axial direction of the spindle 3 and is biased towards the cam surface 5 by a spring 17. In use of the hinge assembly with one of said members mounted in a fixed position adjacent a door frame and the other mounted on the door the cam follower 9 moves generally axially of the spindle 3 and there is no vertical movement of the door as it swings between open and closed positions. <IMAGE>