baber/WOPTO huggingface dataset:
Patent GB-2012081-A (GB)
Title: Photocopying
IPC: G03G15/00
Filed: 1978-12-15
Abstract: The charging property of the photoconductive drum of a photocopier is measured before each copying cycle and the result used to control image density during the copying cycle, i.e. by varying the charging and/or developing means. As shown, the copier comprises photoconductive drum 1 having an outer insulative coating, primary charger 2, secondary charger 3, illumination source 12 of adjustable intensity, a variable diaphragm, flush exposure lamp 6 and developer tray 7. Before the copying cycle, a non-image area of the drum is uniformly exposed to constant intensity light source 26 (at the middle level of source 12) and the surface charge on the drum measured by meter 14, as a result of which a suitable potential difference between drum 1 and tray 7 is maintained during the development step of the copying cycle. <IMAGE>
Patent GB-2012116-A (GB)
Title: A waveguide coupling arrangement
IPC: H01P1/02
Filed: 1979-01-04
Abstract: The invention relates to compensating the point of discontinuity between two axially-aligned adjoining rectangular waveguides (1, 2) which are rotationally offset about their common axis. The compensation is effected by a plate (3) arranged between the waveguides which plate has an aperture therethrough which corresponds substantially to the common adjoining cross-section of the waveguides (1, 2) but has two projections (6, 7) which extend symmetrically of the bisector of an angle ( alpha ) formed between the shorter cross-sectional axes of the waveguides. <IMAGE>
Patent GB-2041711-A (GB)
Title: Fishing lure
IPC: A01K85/14
Filed: 1979-02-14
Abstract: A fishing lure adapted for trolling in waters being fished comprises an elongated section of concavo-convex curvature in a longitudinal plane and having laterally extending flute sections of concavo-convex curvature in transverse planes generally perpendicular to the longitudinal plane of the lure and having line- and hook- fastening openings positioned to provide optional spinning or wobbler action of the lure in the water. <IMAGE>
Patent GB-2021875-A (GB)
Title: Electrical Connectors
IPC: H01R4/24
Filed: 1979-03-23
Abstract: An electrical connector includes a first member (1) disposed, in use, at least partly within a bore in a second member (2) and defining together with the second member (2) a cavity (7) into which a conductor (5,6) can be inserted. After insertion, relative rotation of the members causes them to close on the conductor and establish a generally radially oriented clamping force. The first member (1) is made of resiliently deformable substantially laminar material and has a curved configuration in cross-section transverse to the longitudinal axis of the bore. Preferably the first member is of spiral configuration. <IMAGE>
Patent GB-2018216-A (GB)
Title: Tipping containers
IPC: B65G65/24
Filed: 1979-04-05
Abstract: Apparatus for supporting and dispensing the contents of drums or other containers comprises a supporting frame 10, a carrier 14 for the drum or like container 19 pivotally mounted at 15 on the supporting frame 10. When the carrier 14 is tilted manually to different angular positions relative to the supporting frame 10 friction means 13 operate automatically to retain the carrier 14 in any desired tilted position. The friction means preferably includes a friction disc 13 mounted at the pivot 15 and the carrier 14 may incorporate a ramp 24 to facilitate mounting of a container 19 on the carrier 14. <IMAGE>
Patent GB-2018632-A (GB)
Title: Sheet processing
IPC: B05C9/06
Filed: 1979-04-12
Abstract: Sheet material is treated successively with at least two liquids by supporting the sheet material 1 face upwards and advancing it horizontally through at least a first and a second treatment zone 5, 6. The The face of the sheet material is flooded with a first liquid in the first treatment zone and with a second liquid in the second treatment zone. At the downstream end of the first treatment zone a first textured resilient roll 11 removes from the face of the sheet all but a thin uniform layer of liquid and at the upstream end of the second treatment zone a second roll 13, preferably also resilient and textured, prevents the second treatment liquid flowing upstream. The sheet material is still wet where it encounters the second roll. The preferred roll texture is formed by a fine, close-pitch helical groove. <IMAGE>
Patent GB-2019409-A (GB)
Title: High protein, solid dietary food product, hydrolysed gelatine
IPC: A23L1/305
Filed: 1979-04-17
Abstract: A solid, high protein dietary food product comprising a gelatin hydrolysate containing high molecular weight polypeptides preferably of molecular weight greater than 2,000, is described. The gelatin hydrolysate is prepared by controlled enzymatic, acid or alkali hydrolysis of animal collagen or of gelatin obtained from animal collagen.
Patent GB-2028985-A (GB)
Title: Improvements in and relating to boilers
IPC: F22B31/00
Filed: 1979-07-05
Abstract: A vertical boiler particularly suitable for fluid bed combustion coal firing, includes a furnace 10 arranged within an outer shell 12, the space between the furnace 10 and the she 12 containing water to be heated. The combustion gases from the furnace 10 flow through tubes 36 to a chamber 40 at the top of the boiler shell 12 and then make one or more passes through a second set of tubes 42 surrounding the furnace 10 before being discharged from the boiler. Thermic syphons are provided in the form of tubes 24 open to the water within the shell and extending into the furnace 10 to assist in the heat exchange. <IMAGE>
Patent GB-2028698-A (GB)
Title: Fastener driving slotted body
IPC: B25B21/00
Filed: 1979-08-31
Abstract: A tool for driving a vine eye hook screw-threaded fastener into a wall or ceiling of a building consists of a body portion 10 having a shank 12 which is insertable into the chuck 14 of a drill and having a slot 16 extending longitudinally along the centre line thereof into which the eyelet of the fastener is inserted through an opening 20 in one side of the body. The opening 20 is formed at the end of the slot remote from the shank so that the eyelet end of the fastener is slid into the enclosed portion of the slot 16 in order to drivably engage the fastener with the body portion of the tool. Consequently, on rotation of the tool by the drill, the fastener is also rotated and the screw- threaded end thereof can be driven into the wall or ceiling of the building at the desired position thereon. <IMAGE>
Patent GB-2032051-A (GB)
Title: Spring
IPC: F16F1/14
Filed: 1979-09-04
Abstract: A wire spring (30) comprising two load-bearing portions (31, 32) linked by a central portion (33). An applied load on the load-bearing portions (31, 32) induces torsion within the central portion (33). Each load-bearing portion may have a rectangular configuration (as illustrated) or may be triangular, circular, or circular-segmental. A plurality of such springs may be attached to a core to form a spring unit or arranged so that the load- bearing portions co-operate to form a "composite" spring which may be used in a cylindrical upholstered article such as a pouffe. <IMAGE>
Patent GB-2065956-A (GB)
Title: Battery Manufacture and Equipment Therefore
IPC: B29C48/08
Filed: 1979-12-21
Abstract: A method of manufacturing a battery plate pack comprises assembling a stack of battery plates interleaved with separators, and positioning the resultant assembly adjacent a stationary plastics extrusion nozzle 6. The assembly is then traversed over a path such that the side and bottom edges of the pack are moved progressively past the nozzle while the latter extrudes on to the pack edges a sealing strip of plastics material which extends continuously from one upper corner of the pack around to the other upper corner thereof. <IMAGE>
Patent GB-2044283-A (GB)
Title: Process for preparing dye solutions
IPC: C09B11/02
Filed: 1980-01-28
Abstract: Hydrophohic organic solvent solutions of diphenylmethane derivatives of the formula   <IMAGE> can be prepared efficiently by reacting a diphenylmethane derivative of the formula   <IMAGE> with a sulfinic acid of the formula R5-SO2H in a hydrophobic organic solvent in or out of contact with an aqueous medium containing the sulfinic acid, R1 R2 R3 R4 and R5 are each alkyl, cycloalkyl, aralkyl or aryl group which may be substituted, X and Y are each halogen, alkyl, alkoxy, cyano, nitro or substituted amino, m and n are each 0 or 1 or 2. The solutions are used in making microcapsules for pressure sensitive papers.
Patent GB-2048019-A (GB)
Title: Code conversion in data transmission systems
IPC: H04B10/00
Filed: 1980-04-17
Abstract: A data transmission system including a transmitting station (13 to 15 and T) wherein three-state signals (Fig. 3A, not shown) representing data are converted to two-state signals (Fig. 3D, not shown) so that the data can be transmitted via a transmission line adapted to transmit only two- state signals such as a fibre optic transmission line. <IMAGE>
Patent GB-2054816-A (GB)
Title: Warning beacons for vehicles
IPC: B60Q1/26
Filed: 1980-07-31
Abstract: A beacon lamp for motor vehicles incorporates a steady light source and a flashing light source operable simultaneously or alternatively through switches or a two way switch, the continuous beam being supplied by a gas filled incandescent bulb 6 and the intermittent flashing beam by a zenon gas tube 5. <IMAGE>
Patent GB-2061232-A (GB)
Title: Counting bank notes
IPC: G07D7/12
Filed: 1980-09-29
Abstract: A table-top machine for counting used notes includes a feed hopper 1 with means for lateral positioning of wads of notes, before these are passed one by one to counting means and to a length checker constituted by two rows of photoelectric elements arranged transverse to the path of the notes. The lateral positioning means is made up of two guides on click-stopped carriages, linked by a cable passing over pulleys. The notes are checked individually by an infra-red detector, a metal strand detector and a double feed detector triggered by the lower transparency of two superimposed notes. After counting, the wad is reconstituted. <IMAGE>
Patent GB-2085653-A (GB)
Title: Semiconductor logic circuits
IPC: H01L29/80
Filed: 1980-10-16
Abstract: A velocity saturated pull-up load for a compound semiconductor MESFET in a logic circuit comprises a mesa 11 of active material such as gallium arsenide supported on a substrate 12 and provided with a pair of closely spaced ohmic electrodes 13. The saturation current corresponds to the mesa dimensions and the electrode spacing. The electrode spacing, typically 1 micron, is such that the load is velocity saturated at an applied voltage less than the operating voltage of the transistor. <IMAGE>
Patent GB-2088118-A (GB)
Title: Improvements in or relating to the manufacture of electric batteries
IPC: H01M50/466
Filed: 1980-11-21
Abstract: An electric storage battery comprising a stack of plates (20, 24) alternating in polarity, separated by a one-piece separator (10) formed from a sheet of flexible electrically insulating material folded about a fold (12), then folding back and forth about equispaced folds (14, 16) to form closed-bottomed and sided pockets (18) and compartments (22) between each of the pockets (18). Into each pocket is inserted a plate (20) one polarity, plates (24) of the opposite polarity being inserted one in each of the compartments (22). The stack of separated plates is then inserted in a cell compartment in a battery casing, and a connecting rod secured to the lugs of plates (20) of one polarity and another rod secured to lugs of the other plates (24). Ribs (26), for predetermining the spacing between plates, may be provided on the surface(s) of the separator (10). A facing of non-woven polyester or glass (not shown) may be provided as a lining for the separator. <IMAGE>
Patent GB-2065627-A (GB)
Title: Process for the manufacture of an iron ore sinter
IPC: C22B1/08
Filed: 1980-12-09
Abstract: A method of reducing the alkali content of an iron ore sinter, particularly a basic sinter, including the step of adding to the reaction medium of a conventional sintering process one or more halogen containing compounds selected from the group of compounds comprising halogen gas, a suitable heavy metal halide, hydrohalic acid, and a suitable organic halide.
Patent GB-2087734-A (GB)
Title: Electronic display apparatus for use with the game of darts
IPC: F41J3/02
Filed: 1980-12-16
Abstract: An electronic calculator for calculating dart scores is provided with an additional numerical display. The display comprises three display areas which provide the scores required from each of three darts to end a game when a player has a particular total left. For example if he has 145 left the three display areas may show 57, 48, 40 the last being double 20 and therefore an appropriate finishing shot. Alternative combinations are stored in memory and are displayed upon selection. <IMAGE>
Patent GB-2091093-A (GB)
Title: Tufting upholstery
IPC: B68G7/08
Filed: 1980-12-30
Abstract: For tufting upholstery, an empty tufting needle is inserted from the back, a tuft head 10 is inserted in a receptacle 11 in the needle and retained by a latch 6 and lip 13, and the needle is withdrawn, the tuft head being released after being drawn through the upholstery. The latch 6 positively retains the tuft head and is axially retracted, or rotated, to release the tuft head. <IMAGE>
Patent GB-2068545-A (GB)
Title: Temperature-responsive actuating elements
IPC: G12B1/00
Filed: 1981-01-30
Abstract: A heat operated actuator comprises a plunger 4 which is slidably urged towards its operative position (shown in Fig. 2) by a first spring 12 of shape-memory-effect material when heat is applied to the spring. A bias spring 10 urges the plunger towards the retracted position. A latching member 24 is shown urged into engagement with an annular recess 20 in the plunger, so as to hold it in the operative position by a second SME spring 34 which acts against the force of another bias spring 28 when heat is applied to it. A heater for each of the SME springs is connected in parallel across a power supply via a switch 48, the heater for the first SME spring having a microswitch 62 connected in circuit with it. The microswitch is actuated by the latching member to disconnect the heater from the supply when the latch is engaged. <IMAGE>
Patent GB-2072428-A (GB)
Title: Internally connecting flexible switch
IPC: H01H13/702
Filed: 1979-01-09
Abstract: A flexible touch switch has normally conductive material 62 inserted in apertures 72 in a spacer layer 18, for making electrical contact between electrical pathways 50, 60 carried by contact-carrying layers 16, 20. <IMAGE>
Patent GB-2078025-A (GB)
Title: Excess voltage arrester
IPC: H01T1/14
Filed: 1981-05-13
Abstract: An excess voltage arrester (1 to 21) provided with an overheating protection device comprising a resilient electrically conductive first member (23) in a flexed condition and a second member (25) of heat softenable electrically insulating material associated with the first member such that on overheating of the arrester the second member softens allowing the first member to move in an attempt to return to its natural shape, and thereby establish an electrically conductive path through itself between the arrester electrodes. <IMAGE>
Patent GB-2245660-A (GB)
Title: Cooled aerofoil blade
Inventor: TUBBS HENRY
IPC: F01D5/18
Filed: 1981-06-23
Abstract: A rotary aerofoil blade suitable for a gas turbine engine is provided with a closed cycle cooling system which contains sodium. The blade has an aerofoil portion (11) which comprises an aerofoil cross-section core member (15) enclosed by a correspondingly shaped sheath member (16). The core member (15) and sheath member (16) are both attached to the aerofoil blade platform but are otherwise spaced apart from each other so that a continuous gap (17) is defined between them. The continuous gap (17) constitutes a part of the closed cycle cooling system and in operation a major portion thereof contains liquid sodium. Since the gap is continuous, efficient cooling of the working surface of the aerofoil portion (11) is achieved and additionally the sodium provides damping of any relative movement in bending between the core and sheath members (15 and 16). <IMAGE>
Patent GB-2083804-A (GB)
Title: A method of dewatering slurry
IPC: C02F11/00
Filed: 1981-09-18
Abstract: A method of dewatering slurry in a centrifuge comprises adding to the slurry a rapidly hardening additive. The rapidly hardening additive is preferably cement.
Patent GB-2107402-A (GB)
Title: Wind driven apparatus
Inventor: FARAG FADEL MIKHAIL
IPC: F03D9/00
Filed: 1981-10-08
Abstract: The apparatus comprises a casing 2 carrying vanes 6, 7 and supported from a shaft 3 rotatably mounted in bearings 9, 10. Shaft 3 also carries a fan 8 to propel air through the casing 2 when the latter rotates. The apparatus may drive a dynamo. <IMAGE>
Patent GB-2107957-A (GB)
Title: Gramophone record cutter
Inventor: MARTIN JOHN
IPC: H04R9/16
Filed: 1981-10-20
Abstract: A stereo disc cutting device comprises two electro-mechanical moving coil units (12, 14) the coils of which are each fed in use with a respective one of two stereo input signals, a cutting stylus holder (18) mechanically connected to the coils by means of two rods (20) converging at an angle of 90 DEG , and a back plate (42) supporting the coil units and the stylus holder. The stylus holder includes a metal tube (Fig. 2) one end of which is solid and secured to the back plate and the other end of which is closed by a block (41), the solid end having a portion of reduced cross- sectional dimensions to increase flexibility of the holder to drive movements of the rods and the block being grooved to receive and retain the ends of the rods (20d). <IMAGE>
Patent GB-2090339-A (GB)
Title: Damping vibration in turbomachine blades
IPC: F01D5/16
Filed: 1981-12-03
Abstract: The blade is provided with a vibration damper for damping a predetermined vibration of the blade comprising a closed chamber 14 within the aerofoil portion 13 adjacent the tip of the blade, and liquid 15 within the chamber 14. The volume of liquid 15 is less than the volume of the chamber 14. The chamber 14 is shaped, positioned, and aligned relative to the blade, so that in use the liquid 15 is constrained to form a column which oscillates the chamber 14 in radial directions and in the same directions as the vibration to be damped. The volume, mass, and viscosity of the liquid are all chosen in relation to the frequency vibration (WB) of the vibration to be damped and the rotor speed (WB) so that, in use, the length (L) of the column of liquid is such that   <IMAGE> wherein R = the blade tip radius. In this way the liquid 15 is caused to oscillate, under centrifugal loads, at a natural frequency which matches, or is close to, the resonant frequency of the vibration to be damped. <IMAGE>
Patent GB-2116913-A (GB)
Title: A decorative accessory for electrical apparatus
Inventor: GRANT RONALD SIDNEY
IPC: B44C1/18
Filed: 1982-03-19
Abstract: An accessory 5 for covering part of a television housing is a pvc sheet formed to have a shape similar to that of the housing and, having at each of its free ends, an inwardly projecting ridge 7 which engages with the housing. The decorative surface 6 of accessory 5 contributes to, and thereby can be used to change, the overall appearance of the television. <IMAGE>
Patent GB-2121647-A (GB)
Title: Signalling arrangement for telephone equipment
Inventor: ELKINS C EDWARD
IPC: H04M11/00
Filed: 1982-05-27
Abstract: Each of a number of remote subscriber telephones is connected through its own pair of lines, including ground lines, to a central office in the usual way. Each of many or all of the subscriber telephones has near it a special subscriber end equipment for doing a local job and connected across the related subscriber telephone. In the central office where the ground lines merge into a ground line going to one side of the standard direct current battery, supplying the remote subscriber telephones, there is a modulator in series in the ground line and effective to vary the voltage across the regular line pairs at a frequency or frequencies other than the voice frequency range but effective to actuate all of the special subscriber end equipments.
Patent GB-2102129-A (GB)
Title: Fluid flow meters using Wiegand effect devices
Inventor: ELLIS FREDERICK ALBERT CHARLES
IPC: G01P3/481
Filed: 1982-07-16
Abstract: A single bar magnet 18 is mounted at one end of a paddle wheel impeller 14 of a tangential flow hydraulic fluid indicator. A Wiegand effect module 23 is located in a recess 24 formed in an outer surface of the casing. The module 23 is separated from the chamber 12 by a thin portion of the casing and the magnet 18 is located at the adjacent end of the impeller 14. The axis of rotation of the impeller 14 passes between the ends of the magnet 18. The Wiegand effect device is orientated so as to be substantially parallel to the plane of rotation of the bar magnet 18 so that the changes in the flux conditions in the Wiegand effect device caused by rotation of the magnet induce pulses in the sensing coil associated with the Wiegand effect device, the frequency of the pulses representing fluid flow. <IMAGE>
Patent GB-2127423-A (GB)
Title: Oxidatively stable polyimide compositions
Inventor: MANWILLER CARL HARDING
IPC: C08K3/04
Filed: 1982-09-24
Abstract: Graphite-filled polyimide compositions of excellent high temperature stability are obtained through use of graphite having less than 0.15 weight percent of any of the reactive impurities ferric sulphide and the oxides and sulphides of barium, calcium and copper. There may be from 5 to 75 volume percent of graphite in the polyimide composition.
Patent GB-2130807-A (GB)
Title: Slip rings for electrical machines
Inventor: SCHOBER GERHARD
IPC: H01R39/08
Filed: 1982-11-18
Abstract: A slip ring for an electrical machine, particularly a 3-phase generator, comprises two rings which are disposed concentrically of one another, an outer ring (1) and an insulating bush (2), recesses (4) provided between these two parts being filled with a liquid, hardening compound. The outer ring may be sintered metal or carbon. <IMAGE>
Patent GB-2131969-A (GB)
Title: Stereoscopic viewers
Inventor: WEHNER CHARLES DOUGLAS
IPC: G02B27/22
Filed: 1982-11-25
Abstract: A stereoscopic viewing aid, for example, in the form of a book, in which first and second stereograms are printed on adjacent pages of the book and a mirror is disposed between them so that by adjusting the position of the stereogram and the mirror stereoscopic viewing is achieved. Flat supports for the stereograms may be hinged together and to the mirror. <IMAGE>
Patent GB-2111534-A (GB)
Title: Making photoresponsive amorphous alloys and devices by reactive plasma sputtering
Inventor: SHAW MELVIN P
IPC: H01L29/04
Filed: 1982-11-30
Abstract: A reactive plasma is formed between at least one solid phase material target (44) having one or more elements (Si) to be incorporated in the deposited alloy body and a substrate (28) spaced therefrom. The reactive plasma is formed from a gas including at least fluorine or a fluorine containing compound which etches the element(s) from the target which react with the fluorine and are deposited on the substrate with the fluorine. Other structural, compensating or altering elements can be added during the deposition, either simultaneously or sequentially. The deposition rate can be controlled by the introduction of oxygen into the plasma and removal rate of the element(s) can be controlled by the introduction of hydrogen. The deposition rate can be further controlled by varying the bias on the target. The deposits can be used as doped semi conductors for solar cells, photoelectric diodes and photocopying materials. <IMAGE>