baber/WOPTO huggingface dataset:
Patent GB-2021284-A (GB)
Title: Improved method of electrophotography and apparatus for practicing the same
IPC: G03G15/05
Filed: 1979-04-04
Abstract: The invention relates to increasing the effective speed of a photoconductor. The charged photoconductor is deliberately imagewise under exposed to provide a weak latent image of low contrast which is insufficient to make a satisfactory copy. The latent image, however, is sufficient in contrast to enable an optical mask or shield to be provided over the image by toning it. The background or non-image areas of the photoconductor are discharged by ins a blanket illumination of low intensity. The optical mask prevents the image areas from discharging while enhancing the contrast of the weak latent image. The enhanced image is easily developed by any known developing method. The means for producing the optical shield or mask is a development station using usual or special development tone is, which may be liquid-carried or be in dry powdered form. A salient feature of the apparatus is the means for applying developer to the weak latent image. This must be biased to a voltage above that of the background areas and below the potential of the image areas. This ensures that the background areas are unmasked or unshielded while the image areas are masked.
Patent GB-2048462-A (GB)
Title: Fireplace units
IPC: F24B1/183
Filed: 1979-04-11
Abstract: A fireplace unit (10 Fig. 1) comprises a firebox 14 open on one side, a flue outlet 31 and a water heating manifold 25 positioned inside the firebox and in the path of hot gases travelling to the flue outlet. Heat transfer devices (29 Fig. 3) e.g. heat pipes extend partly within and partly outside the manifold 25. The manifold may be connected into a domestic hot water or central heating system. The firebox may be mounted in a fire housing 11 and spaced therefrom to form an air passageway, so that air may convect through the passageway. <IMAGE>
Patent GB-2025219-A (GB)
Title: Conveyor belt framework
IPC: A47F9/04
Filed: 1979-06-19
Abstract: Conveying means, particularly for use in shop checkouts, comprises an endless belt (11) on spaced rollers (9 and 10) and drivable by a motor, and an inclined receiving surface (21), the belt rollers and motor being carried by a support structure (8) which is removably supported on a floor-mounted chassis (1,2), and a frame (14) surrounding the support structure being removably carried thereby. An edge surround (22) may extend around the receiving surface (21) and a further endless belt may be interposed between the first belt and the receiving surface. The framework is constructed for ease of assembly and disassembly. <IMAGE>
Patent GB-2024594-A (GB)
Title: Crop cleaning device for combine harvesters
IPC: A01F12/44
Filed: 1979-07-06
Abstract: Separated crop material falls from an axial flow threshing and separating apparatus 10 (drum 14 in housing 12) on to a cleaning screen 24 in the form of a foraminous conveyor belt carrying chaff to the rear, assisted by a blower 26. Crop falling through the downstream, separating basket part 22 of the housing 12 is fed by a return device in the form of a conveyor 30, forwardly to the middle of the screen 24. The conveyor 30 may also be foraminous to assist cleaning. It and/or the screen 24 can be vertically vibrated to assist cleaning. <IMAGE>
Patent GB-2027830-A (GB)
Title: Antiskid brake control system
IPC: B60T8/72
Filed: 1979-08-06
Abstract: An antiskid brake control system for a wheeled vehicle has a second order lead network 28 in parallel connection with a deceleration detector 26. The deceleration detector includes both a current threshold level and a voltage threshold level, the deceleration rate of a wheel having to exceed both thresholds to result in a brake control signal to the modulator 30 and a brake control valve 34. The lead network (Fig. 3) includes a first differentiator 114, 112, and a second differentiator 120, 122, producing an output which is the second derivative of the wheel speed. The lead network, deceleration detector, and a modulator all feed a summing circuit 32 which includes a switching circuit providing the system with two distinct characteristic gains. Also included is a circuit for linearly discharging certain capacitors in the system. Also included are locked wheel, touchdown protection, and low speed drop-out circuitry to regulate the application and release of antiskid control at touchdown and upon the occurrence of preselected vehicle activities. <IMAGE>
Patent GB-2033007-A (GB)
Title: Exhaust turbine driven compressor for IC engines
IPC: F02B37/18
Filed: 1979-10-01
Abstract: A housing 20 of an actuator A1 for a waste gate valve device is integral with a housing 21 of an air compressor to enable more compact construction and to avoid overheating of a diaphragm 23 in the actuator A1. When the air pressure in a section 22 of the compressor reaches a certain level, the diaphragm 23 opens the waste gate valve, which is similar to the prior art valve (6) in Fig. 2 (not shown). <IMAGE>
Patent GB-2033308-A (GB)
Title: Improvements in or relating to boats
IPC: B63B15/02
Filed: 1979-10-11
Abstract: To convert a dinghy into a sailboat, a rudder 15 is releasably mounted to a transom by releasable rudder mounting means, leeboard support means such as a transverse beam is attached to the gunnels and a pair of leeboards 23 are pivotally attached to the support means so that they are located directly opposite to each other and may be pivoted between an operative and retracted position. The invention also includes within its scope apparatus for use in the conversion as well as a sail boat so produced. <IMAGE>
Patent GB-2062072-A (GB)
Title: Method of and Apparatus for the Construction of Mixed or Augered-in-place Piles
IPC: E02D5/46
Filed: 1979-10-31
Abstract: A grout and a solidification accelerator such as sodium silicate are pumped into the ground through respective longitudinal passageways (44, 45) in a rotary drill shaft (14), each passageway having a different outlet or outlets (46, 47) formed at or adjacent the drilling end of the drill shaft (14). The grout and the solidification accelerator are proportioned to provide a hardening time suitable for the particular formations penetrated by the drill shaft, and the proportioned fluids are blended with the cuttings in place for construction of a mixed-in-place pile. For production of an augered-in-place pile an auger screw (56) is employed which has the two fluid passageways (44b, 45b) formed therethrough. <IMAGE>
Patent GB-2042600-A (GB)
Title: Strand Break-Out Device
IPC: D01H13/16
Filed: 1980-01-15
Abstract: A member (24) has pins (38) forming a passage means to which component strands converge during travel to a doubling spindle and on which the strands may bear to apply force to the member. The member is pivotally mounted on a support (28) so that it may move freely on the support between limits of displacement from a mean, stable disposition. If a strand breaks the force applied by the remaining strand moves the member beyond the respective limit whereupon the member moves to a further position wherein the pins distort the path that the remaining strand would otherwise take. This distortion is such as to cause the remaining strand to break. <IMAGE>
Patent GB-2073134-A (GB)
Title: Sleeve for Squeeze-tube
IPC: B65D35/02
Filed: 1980-02-22
Abstract: A metallic tubular container for free-flowing liquids has an elastic tubular plastic cover 3. The cover enables the tube to be opened without squeezing the metal tube to eject liquid. The cover may be formed to act as a stand, Fig. 5. <IMAGE>
Patent GB-2049947-A (GB)
Title: Improvements in or relating to imaging systems
IPC: G01R33/36
Filed: 1980-03-10
Abstract: In known NMR imaging apparatuses the GR field gradient, which rotates in the plane of the examined slice, has a zero crossing at the centre of the slice and demodulation is at the Larmor frequency for the zero-crossing. To avoid image artefacts it is proposed to demodulate the detected resonance signals at a frequency which is for a part of the plane lying outside the body slice. In one embodiment this is achieved by arranging the zero- crossing outside the slice, preferably on straight line 27 tangential to circle 28 lying outside the body 23 about axis 24. Control is effected from precalculated coil currents or precalculating fields at probe positions and adjusting the coil currents to give the expected fields. Alternatively the zero-crossing may be maintained at the centre and demodulation may be at a different frequency. It is then desirable to measure the resonance frequency in the absence of the field gradient across the slice. The resonance signals are effectively further demodulated at that measured frequency. The effective demodulation is preferably achieved by complex multiplication of the two signals. <IMAGE>
Patent GB-2073126-A (GB)
Title: Coin packaging machine including means for detecting and correcting irregularly stacked coins
IPC: G07D9/06
Filed: 1980-04-08
Abstract: A coin packaging machine of the type in which a packaging sequence is controlled by one revolution of a cam shaft (46) is provided with a device (22, 24) for detecting an irregularity in a predetermined number of stacked coins inside a stacking cylinder (16), a mechanism for accepting the output of the irregularity detection device (22, 24) at a predetermined timing and for reversing the rotation of the cam shaft (46) when the irregularity is detected, a mechanism (26) for preventing the removal of the coins from said stacking cylinder (16) during the reverse rotation of the cam shaft (46) and within a predetermined time after the return thereof to its initial position, and a mechanism for supervising the output of the irregularity detection device (22, 24) during the reverse rotation of the cam shaft (46) and within said predetermined time and for rotating the cam shaft (46) normally if the irregularity has been eliminated before the expiry of said predetermined time. <IMAGE>
Patent GB-2048190-A (GB)
Title: Method and apparatus for lifting the forward part of a self- propelled combine harvester
IPC: A01D41/12
Filed: 1980-04-09
Abstract: A method of lifting the forward part of a combine harvester for the purposes of fitting and removing the drive wheels, wherein the inclined conveyor 7 is pivoted towards the ground to such an extent that the distance of the front axle 3 from the ground is greater than the radius of the drive wheels. <IMAGE>
Patent GB-2052007-A (GB)
Title: Converting reciprocating linear motion to rotary motion
IPC: F16H19/04
Filed: 1980-04-24
Abstract: An open-ended container (10) is immersed in water with its open end directed downwardly and has a closable vent (14). A weight (16) is provided such that when the container is filled with water the effective weight causes the container (10) to sink. Supplying compressed air through a pipe (36) with the vent closed causes the container (10) to float upwardly until the vent (14) is opened. A reciprocating movement is obtained and is converted, by selective engagement of a pinion (30) with teeth (26 or 28), to rotation always in the one direction of the pinion (30) and therefrom to an output shaft. Alternatively the conversion may be obtained by movement of a piston (52) in an hydraulic cylinder (50) causing movement of an hydraulic fluid through a twin-feed turbine (68), providing unidirectional rotation of shaft (70). The reciprocating motion may be derived from a closed float (60) immersed in a body of water having a changing level, such as the sea. <IMAGE>
Patent GB-2050938-A (GB)
Title: A method for the production of sawblades, and blades produced by the method
IPC: B23D65/00
Filed: 1980-05-07
Abstract: A sawblade is manufactured by a swaging or cold-forging operation so as to be either complete with teeth 6 and relief indentations 8 on the side surfaces of a blade body 2 or with relief indentations 18 and a seat 20 in which a separately formed toothed insert 22 can be fastened, e.g. by soldering, brazing or welding. <IMAGE>
Patent GB-2075830-A (GB)
Title: Portable, inflatable chamber pot
IPC: A47K11/06
Filed: 1980-05-13
Abstract: A portable inflatable chamber pot is made of plastics or rubber and is made strong enough to support the body weight. The chamber pot has a solid base and inflatable sides, and is circular in shape. A valve is provided at the side of the pot and a separate, small air pump is used to inflate it.
Patent GB-2056600-A (GB)
Title: Actuator mechanisms
IPC: F16D65/56
Filed: 1980-06-20
Abstract: A spring or direct fluid brake actuator has a tubular transmitting member 17 threadedly coupled to an output member 23 for transmitting a force thereto from a piston 3, an adjustment element 26 is carried on a helical thread 24 on the transmitting member 17 such that excessive linear movement of the element with the member 17 during a forward actuation stroke results in rotation of element 26 relative to both members and subsequent return movement results in rotation of the transmission member relative to the output member in a sense to reduce subsequent such excessive movement. As shown, element 26 has external ratchet teeth 25 engageable with a pawl 40, which permits rotation of element 26 only during a forward stroke - suitable clutch means may also be provided. Member 23 is shown as a tension rod - it could be a compression rod. For resetting purposes, a pin 31 is withdrawn by means of a lever 32. <IMAGE>
Patent GB-2079599-A (GB)
Title: Medical preparations comprising peat extract
IPC: A61K35/10
Filed: 1980-07-12
Abstract: Topical medicinal preparations comprise an ethanol extract of peat wax resin, obtained by ethanol extraction of peat wax resin at the ethyl alcohol boiling point, and a pharmaceutical vehicle.
Patent GB-2065311-A (GB)
Title: Particle study device aperture cleaning systems and methods
IPC: G01N15/12
Filed: 1980-12-12
Abstract: Residue left within the internal surfaces of the apertures of a particle study device (10) in which particles in suspension are passed through one or more microscopic apertures (14) to generate particle related signals for study of the particles in the suspension is cleared by applying energy through the apertures sufficient to boil the fluid therein. The energy is applied to the electrodes (28) (30) (32) of the device (10) in the form of a D.C. current at a constant magnitude level for a continuous predetermined length of time, generally between passages of the particle suspensions being monitored with the fluid suspension at rest. <IMAGE>
Patent GB-2077390-A (GB)
Title: Vibratory conveyors
IPC: B65G27/30
Filed: 1981-02-13
Abstract: A vibratory conveyor including a material-carrying member 10 pivotally mounted in position above a base 15 is connected by a drive link 30 to a balancing member 14 pivotally mounted below the base, the drive link being pivotally mounted to the base intermediate its ends. The connection of the drive link to the material-carrying member and to the balancing member includes a resilient member to provide a yielding connection serving to reduce torque on startup. <IMAGE>
Patent GB-2070900-A (GB)
Title: Water purification apparatus
IPC: C02F1/32
Filed: 1981-02-20
Abstract: Organic matter which may be contained in purified feed water, e.g. distilled or deionized water, is at least substantially removed by processing the water in apparatus having an upright cylindrical housing 1 containing a coaxial tubular ultraviolet lamp 4. The ultraviolet radiation causes almost all of the organic matter to be oxidized to carbon dioxide which can escape through vent 13. A circulating loop 3 connected to the housing ensures repeated exposure of the water to the radiation, while also serving as a sight-glass. The end of a timed cycle is indicated by a timer-controlled signal lamp or other indicator, but the ultraviolet lamp and the circulation loop continue to operate, to prevent possible contamination. <IMAGE>
Patent GB-2072481-A (GB)
Title: A method of brining cheese
IPC: A01J25/16
Filed: 1981-03-26
Abstract: A method of brining cheese is disclosed in which, after the pressing of the curd composition and optional circulation of the cheeses formed, these are subjected to a brine treatment by flowing a brine solution over the cheeses. The cheeses thus treated are pre-dried and subsequently cured. Suitable apparatus comprises a plurality of at least locally liquid-permeable tiers on which the cheeses may be placed. <IMAGE>
Patent GB-2074895-A (GB)
Title: Agitator mill
IPC: B02C17/16
Filed: 1981-04-23
Abstract: An agitator mill comprises a grinding vessel 2 defined by a cylindrical wall 17 within which an agitator including a cylindrical wall 15, 16 is mounted for rotation. The wall 15, 16 divides the grinding vessel into two coaxial chambers 11, 12. Within the inner chamber is a coaxially disposed central column 10 defined by two cylindrical walls 13, 14. Projections 25, 26 extend outwardly from the walls 14 and 16 respectively but the inner surface of the cylindrical wall of the agitator has no such projections. In use, material to be ground enters the inner chamber through the central column and is preground by the action of grinding bodies in the inner chamber which are brought into motion by the projections 25 and frictional engagement with the inner surface of the cylindrical wall of the agitator. The partially ground material then passes to the outer chamber 12 and is ground further by additional grinding bodies therein. <IMAGE>
Patent GB-2080360-A (GB)
Title: Post-terminal Wall for Tanks
IPC: E04H7/20
Filed: 1981-07-11
Abstract: Enclosure walling made up of a series of interconnected building blocks 1 at least some of which have an open-ended recess 5 in the front face which communicates with a corresponding recess on adjacent blocks. Reinforcement, for example steel bar reinforcement 12, extends along these recesses and is in a tensioned state around the enclosure thereby exerting a force on the walling which places the wailing in compression to resist pressure from material contained within the enclosure. The blocks are preferably recessed in a rounded manner in order to reduce localized stress build-up. Adjacent blocks are connected by a torque 4 and groove 3 connection, the groove 3 containing reinforcement bars. A through-bore may be provided for the front to back of the blocks for receiving a pipe or other service. <IMAGE>
Patent GB-2110421-A (GB)
Title: Apparatus for dynamic analysis of analog signals
Inventor: OWENS DR ALAN
IPC: G01D1/00
Filed: 1981-07-17
Abstract: Apparatus for dynamic analysis of a plurality of analog electrical signals and particularly for fatigue analysis of a structure subject to mechanical stress, comprises a control module, and a data acquisition unit containing a plurality of data acquisition modules to which input analog signals from sensors are fed. Each data acquisition unit includes a specially arranged analog to digital converter, random access memory, microprocessor, programmable read- only memory, and input/output port communicating with the control module. The control module includes a microprocessor for control purposes, a programmable read-only memory, and input/output port communicating with the data acquisition modules for acquiring data therefrom and for sending control information thereto. A further input/output port on the control module allows communication with an external computer for further processing of acquired data. A battery ensures retention of data stored in memory in absence of main power supply.
Patent GB-2105950-A (GB)
Title: Telephone data interface
Inventor: ASKEW DAVID WILLIAM
IPC: H04M11/06
Filed: 1981-08-06
Abstract: A telephone subscriber's terminal is provided which is connected to a line to a telephone exchange, e.g. a PABX, and also connected to a computer, when the terminal is in use. It also has access to a remote control unit (8). Thus it can function as a telephone, or as a computer interface, or both. When functioning as a computer interface, conversion (4, 5) is provided between the digital format used by the computer and the format used over telephone lines, usually MF. <IMAGE>
Patent GB-2104060-A (GB)
Title: Fluorinated hexene diamine derivatives
Inventor: BEY PHILIPPE
IPC: C07D209/48
Filed: 1981-08-19
Abstract: Novel fluorinated alkenylene diamine derivatives are inhibitors of decarboxylase enzymes involved in polyamine formation and have the following general Formula I:-   <IMAGE>  wherein:-      Ra represents hydrogen or R2, where R2 is as defined below. Rb represents hydrogen or also, when Ra is hydrogen, R2, where R2 is as defined below;      Rc represents hydrogen or -COR3, where R3 is as defined below;      R1 represents hydrogen or C1-C6 alkyl; each R2 independently represents C2-C5 alkylcarbonyl, phenylcarbonyl, phenyl-(C1-C4 alkyl) carbonyl, or an aminocarboxylic acid residue derived by removal of an hydroxy group from the carboxy moiety of an L-aminocarboxylic acid; R3 represents hydroxy, or also, when Ra and Rb are both hydrogen, C1-C8 alkoxy, -NR4R5, where R4 and R5 are as defined below, or an aminocarboxylic acid residue derived by removal of a hydrogen atom from the amino moiety of an L-aminocarboxylic acid;      R4 and R5 independently represent hydrogen or C1-C4 alkyl; m represents 1 and n represents 0 or m represents 0 and n represents 1; and      p represents 1 or 2, and pharmaceutically acceptable salts thereof.
Patent GB-2109166-A (GB)
Title: Printed circuit boards
Inventor: KNIGHT MICHAEL JOHN
IPC: H05K1/03
Filed: 1981-11-06
Abstract: Sheet material comprising fibres and an elastomeric binder is used as the substrate for printed circuits. The fibres are preferably vitreous fibres present in an amount from 20 to 70 wt % of the sheet.
Patent GB-2115108-A (GB)
Title: Rotary valves
Inventor: GIORGIO CALDINI
IPC: F16K35/00
Filed: 1982-01-21
Abstract: A valve is provided with a tamper- proof operable part (18) rotation of which moves the valve member (14). The operable part (18) may be removed from a valve member driving spigot (19) and replaced thereon in a different position in which movement of the operable part (18) is prevented by abutment between pin (29) and a notch in the part (18). <IMAGE>
Patent GB-2118300-A (GB)
Title: Method of immunoassay
Inventor: SCARISBRICK JAQUELINE
IPC: G01N33/577
Filed: 1982-02-12
Abstract: The invention relates to a method of immunoassay for prolactin, characterised in that monoclonal IgG antibodies are used. The method preferably comprises the use of two different monoclonal antibodies which bind respectively at different antigenic sites on the prolactin molecule. One antibody is labelled and the other is immobilised on a water-insoluble carrier material, whereby an immunochemical complex comprising labelled antibody, prolactin and immobilised antibody is formed.
Patent GB-2093348-A (GB)
Title: Pharmaceutical composition for implantation
IPC: A61L27/54
Filed: 1982-02-15
Abstract: The present invention relates to a pharmaceutical composition for implantation in a natural, pathological or artificial cavity in body tissue. The composition comprises CaSO4 (e.g. as gypsum or plaster of Paris), and at least one antibiotic substance selected for its ability to be slowly released from the CaSO4 and to maintain antibiotically effective concentrations in fluid in the cavity for a period of up to several weeks. The preparation of the composition comprises mixing plaster of Paris (calcium sulphate, hemihydrate) with the desired antibiotic substance or substances and water, optionally adding auxiliary agent(s) and allow the slurry obtained to set in moulds, or in situ. The antibiotic is fusidic acid and/or gentomycin.
Patent GB-2104710-A (GB)
Title: Standby heat removal system for a nuclear reactor using flow diodes
Inventor: COOPER MARTIN HOWARD
IPC: G21C1/02
Filed: 1982-03-22
Abstract: A nuclear reactor using flow diodes (19) to limit reactor core coolant flow through an emergency flow path (12) during normal reactor coplant flow, and to allow unhindered natural circulation around the path with opposite direction when normal reactor coolant flow stops. The emergency flow path may be a separate circuit with a heat exchanger (Figure 3), or may include the core blanket as a heat sink with reverse flow (Figure 4).