baber/WOPTO huggingface dataset:
Patent GB-2000422-A (GB)
Title: Seed drills
IPC: A01C7/04
Filed: 1978-06-12
Abstract: A precision seed drill capable of performing most seeding techniques, that is conventional or direct seeding, narrow or wide row spacing, random or precision seeding, comprises at least one device for opening-up the soil to take the seed, for example a slit cutting disc (1) followed by an inclined pair or slit-widening discs (9); a precision seeding mechanism (3) adjacent each soil opening-up device; and seed conduit for feeding seed to each mechanism (3) from a seed storage hopper (4). The seeding mechanism (3) comprises a vertical plate rotatable about a horizontal axis, and provided with apertures in which seeds are held by suction until release. <IMAGE>
Patent GB-2009995-A (GB)
Title: Recording and reproducing still pictures on video tape
IPC: H04N1/21
Filed: 1978-09-08
Abstract: In order to record and reproduce individual still pictures on and from oblique tracks on a stationary magnetic video tape, without requiring additional non-interlacing generators and without losses in vertical resolution, in addition to the normal rotating video head or heads used for recording/reproducing the interlaced fields (one per track) of moving pictures, on the moving tape, at least one further rotating video head 2 is provided, so that the apparatus includes two video heads 1,2 which we offset axially and circumferentially relative to one another and which, when the tape is stationary, record or reproduce two oblique side-by-side tracks corresponding to the two fields of a complete picture. The azimuth angle of the recording gap 3 of head 2 is different to that of the recording gap 4 of head 1 to avoid cross-talk, and the two still picture tracks are recorded without a guard band therebetween. Figure 1 shows a head arrangement for a 360 DEG  tape wrap apparatus, but the invention is also applicable to 180 DEG  tape wrap arrangements. <IMAGE>
Patent GB-2006171-A (GB)
Title: Transferring articles between sterile environments
IPC: B65B55/00
Filed: 1978-09-27
Abstract: A method and apparatus for discharging into a sterile environment (22) the sterile contents (10) from a sealed container (11) having a wall portion of heat-sealable plastics film. Said wall portion is contacted face-to-face with a heat-sealable plastics sheet (28) separating the sterile environment from the external environment. A heated cutting element (88) on the sterile side contacts the materials (11,28) and simultaneously forms a cut and seals the materials together along the cut. The contents (10) are discharged through the opening formed by the cut into the sterile environment (22). The container (11) preferably contains one or more articles (10) to be discharged and a tubular former (13) through which the articles can pass and which provides a counter-abutment for the heated cutting element (88). <IMAGE>
Patent GB-2005383-A (GB)
Title: Mounting pulley drives to shafts
IPC: F16H37/02
Filed: 1978-10-02
Abstract: A drive arrangement for a harvesting machine comprises a variable ratio pulley 2 on the shaft 5 of the threshing cylinder. To provide ready options of direct drive or reduction gear drive, the pulley is coupled to the shaft either by a coupling bell 22 splined at 42 to the shaft and bolted at 30 to the pulley boss 10, or by a planetary gear (60) Figure 2 (not shown) with a sliding sleeve (74) splined to the shaft, a sun wheel (86) bolted (at 100) to the pulley hub in place of the bell, planet gears on a carrier (72) and a fixed ring gear (84). In one position (direct drive), outer splines on the sleeve (74) engage the sun wheel (86); in another position (speed reduction) these splines engage the carrier (72). It is a simple operation to unbolt the coupling bell and bolt on the reduction gear, or vice versa. <IMAGE>
Patent GB-2010728-A (GB)
Title: Forceps for grasping and applying a fallopian tube plug and a plug
IPC: A61F6/22
Filed: 1978-11-17
Abstract: Two jaws 4, 5 have their free ends angled towards one another through a right angle to define, in the closed position, a passage 6 opening out to form a chamber 7, of enlarged cross-section, the passage fitting around a neck 9 on the plug. A fallopian tube plug comprises a cylindrical shaft 12, of plastics material which is provided on its circumference with a plurality of axially spaced and annular skirts 13 and a skirt-free neck 9 by which the plug is grasped by the forceps. <IMAGE>
Patent GB-2009787-A (GB)
Title: Low Thermal Expansion Nickel- Iron Base Alloy
IPC: C22C38/00
Filed: 1978-12-05
Abstract: A castable nickel-iron base alloy suitable for high temperature service and characterized by low thermal expansion and freedom from notch sensitivity and deleterious microshrinkage in castings. The alloy consists essentially of at least 16% nickel, at least 10% cobalt, up to 5% columbium, up to 3% tantalum, up to 2.5% titanium, up to 2% aluminum, at least 0.06% boron, up to 0.1% carbon, and the balance iron.
Patent GB-2029808-A (GB)
Title: Closing Containers having Screw-threaded Necks
IPC: B65D51/16
Filed: 1978-12-07
Abstract: In order to prevent "missiling" of the cap of a bottle or other screw-top container intended to contain a carbonaceous beverage, the screw- thread ridge 11 of the cap and/or the container has one or more transverse notches 12 in its length so as to relieve the gas pressure as the cap is removed. The radial depth of the notches may conveniently be equal to the radial height of the screw-thread ridge in which it is formed. Notches in adjoining turns of the ridge may be circumferentially staggered. <IMAGE>
Patent GB-2013829-A (GB)
Title: Manufacture or oil-scraper piston rings and other resilient sealing rings with gaps
IPC: F16J9/10
Filed: 1979-02-02
Abstract: In the manufacture of oil-scraper piston rings comprising an expander spring (5) which is itself provided with oil-scraper edges or is mounted within a scraper ring, manufacturing tolerances which result in an unduly wide range of contact pressures are compensated by measuring the tangential force required to close the gap between the ends (6) and (7) of the expander spring, or the corresponding force for the assembly of spring and scraper ring, calculating a length correction based on the deviation of the measured value from a standard, and inserting a spacer (9) of appropriate length (b). The spacer (9) is freely movable in a pin (8) located by engagement of the end (8') between turns of the spring (5). <IMAGE>
Patent GB-2027049-A (GB)
Title: Process for Treating a Sour- Petroleum Distillate
IPC: B01J31/18
Filed: 1979-03-02
Abstract: The sweetening of a mercaptan- containing sour petroleum distillate by contacting with a supported metal phthalocyanine catalyst in the presence of an alkaline reagent at oxidation conditions is carried out using a catalyst which has been prepared by impregnating a solid adsorptive support (such as charcoal) with the phthalocyanine from an aqueous solution and/or dispersion of the phthalocyanine also containing from 5 to 50 wt. ppm morpholine.
Patent GB-2043797-A (GB)
Title: Bladed Rotor for Gas Turbine Engine
IPC: F01D5/22
Filed: 1979-03-10
Abstract: The rotor (15) has fir-tree root fixings at its periphery supporting blades (16). In order to damp blade vibration, the under sides of platforms (20) are engaged by damping weights (36) freely carried on segmental plates (23, 31) secured to the rotor (15) by hollow rivets 28. <IMAGE>
Patent GB-2033955-A (GB)
Title: Flexible Support with Ball and Socket Joint
IPC: F16C11/06
Filed: 1979-04-02
Abstract: A flexible support (1) has a ball and socket joint formed by part- spherical surfaces formed on an internal sleeve (2) and an external sleeve (5). The internal sleeve has an annular layer (3) of elastomer material provided with a rigid internal annular element (4) which defines a part- spherical convex surface. The external sleeve has a plurality of parts (15) which together define the co- operating concave part-spherical surface and which are held together by an external bush (7). <IMAGE>
Patent GB-2026209-A (GB)
Title: Improvements in or relating to methods of and apparatuses for controlling movable energy sources when operated to heat the surfaces of objects
IPC: B23K26/20
Filed: 1979-04-30
Abstract: A method of controlling a movable energy source eg a laser or plasma beam or electric arcs when it is being operated to heat a surface 1 (Figure 9) of an object eg an ingot and to maintain the predetermined temperature of the surface, comprises controlling the velocity (Vi) and power of the energy source (4) as it is moved along a predetermined path (3), in accordance with error signals derived from the difference between predetermined and measured temperatures at different elemental areas (21,...,2i...,2n) of the said surface (1). From the temperature error signals correction values are produced. The power of the energy source (4) is varied in proportion to the average deviation between the measured and desired temperature for each of the elemental areas. The correction values for velocity (Vi) are converted into rectangular coordinate signals (Uy, Ux) representative of the components determined by the law of movement of the source and related to rectangular axes (Y,X), these signals being used to control the velocity. The temperature is measured by a scanner unit 17 coupled optically to a temperature sensor 9. <IMAGE>
Patent GB-2024873-A (GB)
Title: Cosmetic compositions containing certain quaternary ammonium polymers
IPC: A61K8/36
Filed: 1979-06-15
Abstract: Cosmetic compositions in the form of a dyeing or bleaching carrier, a permanent-waving composition or a pre-perm or after-perm lotion are described which contain at least one polymer containing units of the formula:   <IMAGE> in which each R1, each R2, each R3 and each R4, which are identical or different, represents a saturated or unsaturated, substituted or unsubstituted, aliphatic radical, a saturated or unsaturated, substituted or unsubstituted, alicyclic radical, or a substituted or unsubstituted arylaliphatic radical, or R1 and R2 and/or R3 and R4, form together with the nitrogen atom to which they are attached, a ring which can contain a second hetero-atom other than nitrogen, A represents a linear or branched, substituted or unsubstituted, alkylene or alkenylene group optionally containing, in the chain or as a substituent or both, one or more hetero-atoms or one or more arylene groups, X< theta > is an anion of an inorganic or organic acid and m is 2 or 3.
Patent GB-2026693-A (GB)
Title: Determination of Antibiotic Levels in a Medium
IPC: G01N33/02
Filed: 1979-07-25
Abstract: A method of measuring the antibiotic level in a medium and which is particularly applicable to the rapid determination of antibiotic levels in serum and to the rapid testing of antibiotic levels in milk, meat and animal feed, is based on measurement of the initial increase of total or extracellular adenosine triphosphate (ATP) levels in the samples in the presence of antimicrobial agents.
Patent GB-2032113-A (GB)
Title: Device for displaying the residual distance of travel of a motor vehicle
IPC: G07C5/08
Filed: 1979-07-27
Abstract: A device for displaying the distance a motor vehicle can travel with a given quantity of fuel present in the tank has a supply resistor datum source (1) for measuring the quantity of fuel in a fuel tank (3) by means of a float (4), a variable resistor (5) whose resistance is varied by the position of the throttle halve (9) of the engine, a pre-set variable resistor (6) representing the average fuel consumption of the engine, a transistor (7) whose base is controlled by a voltage from an engine speed datum source (10) and a moving coil display instrument (8) and a constant current source (13). The display instrument (8) gives at any instant the distance which the vehicle can travel before the fuel tank is empty. The float level sensor may be replaced by a capacitive level sensor (Fig. 2) and the constant current source may be replaced by a current source whose output is varied from a predetermined value given by the average fuel consumption as a function of the position of the throttle valve and the speed of the engine (Fig. 3). <IMAGE>
Patent GB-2062276-A (GB)
Title: Miniature Microscope
IPC: G02B21/00
Filed: 1979-10-03
Abstract: A convenient pocket size microscope, the size of a packet of cigarettes, and having an inbuilt light source comprises eyepiece and objective lenses 7, 12; a body 2 having a compartment for accepting a battery 10 to power means 9 for illuminating an object to be viewed; and  a lens tube 1 pivotal from a stowed position to a viewing position. The pivotal movement may activated the illuminating means 3 via a switch 8. <IMAGE>
Patent GB-2064154-A (GB)
Title: Improvements relating to the cooling of lasers
IPC: G02F1/03
Filed: 1979-11-17
Abstract: The crystal 3 of an electro-optic modulator for a laser is housed in a fluid tight chamber 1 having an inlet 7 and outlet 8 through which is passed an electrically insulating cooling fluid. The fluid comes in direct contact with the crystal, and may be a fluorocarbon or fluorinated/chlorinated hydrocarbon. <IMAGE>
Patent GB-2040857-A (GB)
Title: Hoist load positioner
IPC: B66D3/20
Filed: 1980-01-22
Abstract: A device for precisely positioning a hoist suspended load which operates by temporarily releasing the hoist brake 4 for a predetermined limited time period without actuating the hoist motor 1 so that the load is lowered through a small incremental distance by the influence of its own weight. A control signal may be generated by a delay timer, a repeat cycle timer, a digital timing device or a device for detecting the degree of movement of the hoist itself. <IMAGE>
Patent GB-2046974-A (GB)
Title: Method and apparatus for the identification of coins and equivalent
IPC: G07F5/08
Filed: 1980-04-03
Abstract: A method and an apparatus for testing and identifying electrically conductive coins and similar. According to the method, the effect of each coin 1 to be tested and identified on a magnetic field, generated by means of coils 101, 201, is measured and compared with a reference value such that a coin is accepted if the measured value is close enough to the reference value. This reference value is determined on the basis of the effect produced by a preselected reference coin 2 on a reference magnetic field generated by coils 102, 201 having the same magnitude as the measurement magnetic field.   <IMAGE>
Patent GB-2050675-A (GB)
Title: Video Copying and Transmission Inhibitor
IPC: G11B20/00
Filed: 1980-04-08
Abstract: A system for transmitting signals from video tapes incorporating means for producing modified field synchronising pulses, giving rise to a delay in the start of vertical drive pulses, whereby the correlation between line and field synchronising pulses is destroyed, and means for recording said modified synchronising pulses on a control track of a video tape recorder to serve thereon as a timing reference, so correlating the tape lateral speed and the scanner head rotational speed of said recorder. <IMAGE>
Patent GB-2076081-A (GB)
Title: Power transmission system
IPC: B60K17/08
Filed: 1980-05-13
Abstract: A power transmission system for a motorised vehicle or the like comprises two aligned drive shafts (18, 18') the remote ends of which are adapted to be universely jointed to respective output shafts (20) and the adjacent ends of which are guided for movement along respective predetermined paths in slots (24, 24') extending generally radially of the axis of rotation of the drive shafts in an intermediate driven flywheel (14). Each shaft extends through a conical bore in a member (27) secured to a housing of the system, the conical bore tapering towards the outer end of the shaft (18). A respective disc- shaped member (28) is coaxially mounted on each drive shaft for engagement with the surface of the conical bore and is axially displaceable along the drive shaft in response to relative rotation between the disc- shaped member and the drive shaft. <IMAGE>
Patent GB-2077640-A (GB)
Title: Improvements in abrasive and polishing sheets
IPC: A44B18/00
Filed: 1980-06-06
Abstract: An abrasive or polishing sheet has a brushed, knitted nylon material secured to it. The nylon has less than 20 loops or curls per square mm. A carrier pad has a material to which the sheet can be attached. The material of the pad has inclined stalks extending therefrom which have unhooked ends. These features result in a very low peel strength between sheet and pad.
Patent GB-2053926-A (GB)
Title: Albumin extraction by affinity chromatography
IPC: A61K38/00
Filed: 1980-07-16
Abstract: Albumin may be separated from mixtures such as blood, plasma or blood protein fractions by affinity chromatography on an immobilised triazine dye of high adsorptive capacity obtained by immobilisation with alkali metal hydroxide. The albumin is preferably adsorbed at pH 6-8 and at above 20 DEG , more preferably 30-40 DEG C and is eluted with a solution containing a carboxylic acid, normally as alkali metal salt. C4-C12 carboxylic acids, especially octanoic, are preferred. The albumin may subsequently be heat treated to improve its agglutination enhancing activity and shows a low tendency to rouleaux formation. Alternatively the separation may be used in conjunction with a plasmaphoresis process, the patient receiving his own albumin as well as red cells.
Patent GB-2057564-A (GB)
Title: Pressure-charged engine systems
IPC: F01P3/18
Filed: 1980-08-21
Abstract: Charge air for an engine (12) is compressed by a compressor (26) of a turbocharger, and supplied to the engine through first and second heat exchangers (44, 46), where it is cooled. The first heat exchanger (44) uses liquid coolant tapped off from the engine cooling circuit (36, 38, 41, 40) through a line (48), from a point downstream of the main radiator (36). The second heat exchanger (46) uses liquid coolant which has been cooled by a separate heat exchanger (56) to a temperature lower than the coolant in line 32. <IMAGE>
Patent GB-2063432-A (GB)
Title: Target Trainer
IPC: F41G3/26
Filed: 1980-10-03
Abstract: A target for simulated weapon training has a screen 2 on which is projected a still or moving picture of a terrain and a target board 3 movable over the screen. The target board is reflective so that it presents the projected image and is itself invincible. However, the target board carries a non-reflective silhouette 4 of a target. The target board also has a light- sensor arrangement responsive to light from the weapon 8. <IMAGE>
Patent GB-2088281-A (GB)
Title: Fabric-reinforced Composite Material for a Flexible-walled Container and Method of Making Said Container
IPC: B29C49/00
Filed: 1980-12-03
Abstract: A composite material (10) for the manufacture of flexible, fabric- reinforced, complex-shaped containers comprises a fabric reinforcement material (12) and at least one facing layer of a polymeric or elastomeric material, (14 or 16) said fabric comprised of yarns capable of changing their effective lengths upon being shaped to a complex mold configuration and thereafter maintained in that shaped condition by curing of the composite material. The method of the invention comprises applying a differential pressure to the fabric reinforced composite (10) in a concave mold (30, 50) having the desired complex configuration to move the composite into the mold cavities as the effective length of the yarns change to conform to the mold (30, 50) and thereafter curing of the composite so as to set the composite (10a) to the mold shape. <IMAGE>
Patent GB-2094067-A (GB)
Title: Single-phase step micromotor
IPC: H02K37/16
Filed: 1981-02-18
Abstract: A single-phase step micromotor comprises a stator having a pair of pole pieces 1 and 2 facing each other by cylindrical surfaces 3 and 4 thereof. Interposed between the stator pole pieces 1 and 2 is a double-pole rotor 9, while arranged between the stator and rotor is a ferromagnetic ring 8 the thickness of which is less than that of the stator pole pieces 1 and 2. The inner diameter of the ring varies along the angular coordinate of the stator to provide a variable gap "a". The rotor poles align with an axis XX when no current is being applied to a winding 6. The invention can be applied to advantage in horology, such as for the manufacture of electronic/mechanical wristwatches with dial display. <IMAGE>
Patent GB-2082490-A (GB)
Title: Rolling guide for steel U type- sheet piling
IPC: B21B1/082
Filed: 1981-03-18
Abstract: A roller guide (20) for both grinding and forming steel U type- sheet piling comprises two tandem inner rollers (35) each disposed adjacent the inner surface of a flange of the piling for bending fingers formed at the end of the flange, and two tandem outer rollers (36) each engaging said fingers. Roller gaps (S) between the inner and outer rollers (35,36) are adjustable, shelves 44,52 for supporting a bottom (5) of the fingers are formed on one or both of the inner and outer rollers, and at least the inner rollers each comprises a roller shaft (37) and a roller body (39) incorporating therein a bearing (38) being in contact with the roller shaft. The roller guide is disposed adjacent the delivery of a finishing roll and the piling is advanced by the roll into the roller guide (20) at a low initial speed. <IMAGE>
Patent GB-2077363-A (GB)
Title: Wafer tip cap for rotor blades
IPC: F01D5/18
Filed: 1981-06-01
Abstract: The tip cap is fabricated from a plurality of chordwisely extending wafers 30, 32. The outermost wafer 30 being of an abrasive material such as silicon carbide embedded in a metal matrix. Convective cooling of the tip is established through the incorporation of laterally extending passages 34 between adjacent wafer elements. <IMAGE>
Patent GB-2078871-A (GB)
Title: High pressure fuel injection pump for diesel engine
IPC: F02M41/14
Filed: 1981-06-16
Abstract: A high pressure rotary distributor fuel injection pump for a diesel engine includes a fuel metering device 2. The fuel metering device 2 includes a cylinder 9 and a shuttle 10 for increasing the accuracy with which the fuel metering is effected, so that metering of the fuel is carried out by adjusting the amount of movement of the shuttle 10. The fuel metering device 2 further includes a four-way valve 8 to enable fuel metering to be carried out each time the shuttle 10 is moved in opposite directions in reciprocatory movement, so that introduction of fuel into one end of the cylinder 9 of the metering device and feeding of the metered fuel from the opposite cylinder end to the pressurizing device 3 can be effected through the four-way valve 8. <IMAGE>
Patent GB-2101313-A (GB)
Title: Stabilising device
Inventor: LACEY DAVID IAN
IPC: B62H1/10
Filed: 1981-07-03
Abstract: A stabilising device for motorcycles consists of an annulus 8 rotatable on ball races 5 mounted on the run 1 of the wheel. The annulus 8 is driven by pawls 10 also mounted on the wheel rim so that the annulus 8 rotates with the wheel in one direction. When the wheel locks the annulus 8 can maintain its movement as the pawls fall away to allow its free passage. The continued rotation of the annulus generates a gyroscopic moment which continues to provide stability even when the wheel has locked. As shown the annulus is located within the tyre. <IMAGE>
Patent GB-2079847-A (GB)
Title: Security containers
IPC: E05G1/14
Filed: 1981-07-09
Abstract: A security container for stacks of paper articles has a device comprising at least one hollow punch operated by at least one explosive cartridge 32 whereby a hole(s) is punched through the stack(s) if the container is tampered with. The cartridge(s) 32 are detonated in response to the removal of a cotter pin 36 from a spring-loaded firing device by pulling a wire 38 or by the operation of an electromechanical device connected to a sensor incorporated in a lock or hinge of the container. Alternatively, a switch automatically closed by tampering with the container, or a time-switch, can be provided to actuate the cartridge(s) directly. The punch(es) are relieved internally and/or externally to facilitate punching. <IMAGE>