baber/WOPTO huggingface dataset:
Patent GB-2007383-A (GB)
Title: Optical compensation
IPC: G03B41/06
Filed: 1978-10-13
Abstract: An optical scanner system such as an optically compensated cine projector has a rotary polygonal reflective device 4 with 24 facets each having orthogonal mirrors 10 and 12. The lower part of the device has radial spoke baffles 22 to remove ghost images, and sprockets 20 over which film 18 passes, extending over at least two or three facets and covering the mirror 12 of each. A long narrow arc lamp 28 illuminates film 18 lengthwise through condensers 24 and 26 (condenser 24 covering two or three frames), and a projection lens 6 forms real images of the virtual images of the film frames formed by the scanner. The top and bottom of the real images are subject to defocussing and motion inherent in the scanner design. To compensate for this: (i) a field flattening lens (40, Fig. 10) is included in the projection system, (ii) vignetting is used to deluminate the top and bottom image portions, (iii) the projection system is telecentric, and (iv) rays to the top and bottom image portions are tangential to the locus in space of focussed image point positions. <IMAGE>
Patent GB-2031352-A (GB)
Title: Improvements in or Relating to Retreading Pneumatic Tires
IPC: B29D30/56
Filed: 1978-10-18
Abstract: In a method of retreading a pneumatic tire, the tire casing is buffed to a predetermined profile to remove the old tread. An uncured cushion or bonding layer 18 having an integral belt 19 disposed therein is wrapped circumferentially around the casing and attached thereto. A precured tread having an integral belt 15 disposed therein is wrapped circumferentially over the cushion layer and attached to the casing and cushioned layer. The tire is then cured to form a unitary structure. <IMAGE>
Patent GB-2009641-A (GB)
Title: Apparatus for Truing Grinding Wheels with an Involute Profile
IPC: B24B53/075
Filed: 1978-11-17
Abstract: The apparatus includes a truing arm (9) carrying three adjustable truing tools (10, 11, 12) mounted on an upper carriage (8) displaceably mounted in an upper carriage guide means. A replaceable, circular segment member (24) is carried by the truing arm (9) and has a radius that substantially equals the base circle radius of the involute teeth. A rolling bar rule (22) has an end (23) that bears against a prismatic mounting block (21) for a slide (16) which is displaceable by a cam 20 and roller 18 in response to displacement of a lower carriage (6) on which the upper carriage (8) is mounted. The rolling bar rule (22) rolls against the peripheral surface (24a) of the segment member (24) with the interposition of a spring steel strip (26), which prevents relative sliding movement between the rolling bar rule and the segment member. <IMAGE>
Patent GB-2010567-A (GB)
Title: Nuclear Fuel Sub-assemblies
IPC: G21C3/344
Filed: 1978-12-04
Abstract: A fast reactor fuel sub-assembly has honeycomb grids for laterally supporting the fuel pins. The grids are of two series and are arranged alternately along the bundle. The grids of a first series provide a discrete cell for each pin but the grids (7b) of the second series have a peripheral group of cells (14) only. The grids of the second series provide intermediate support of the edge pins to restrain bow. <IMAGE>
Patent GB-2014216-A (GB)
Title: Drilling, Workover and Completion Fluids for Wells
IPC: C09K8/14
Filed: 1979-02-05
Abstract: An acid soluble weighting agent for use in drilling, completion and workover fluids for subterranean wells, is selected from fluor-apatite, chlor-apatite, hydroxy-apatite, carbonate-apatite and collophane. It may be used in oil or aqueous drilling fluids for drilling, completing and working over a subterranean well, and can be dissolved by acid.
Patent GB-2015622-A (GB)
Title: Equipment for laying elongate material adjacent a newly exposed rock surface in an underground mine
IPC: E21C35/00
Filed: 1979-02-06
Abstract: Equipment for laying a layer of elongate material, e.g. wire mesh adjacent to a newly exposed rock or mineral surface in an underground mine which is formed by a mining machine cutter as the machine traverses along a working face comprising a support bracket (4) secured to the mining machine (23) and defining slideway (9) along which a slide member (10) can slide in a direction transverse to the direction of machine traverse, the slide member being provided with support arm means (19, 20) for supporting a coil (27) of elongate material. <IMAGE>
Patent GB-2016546-A (GB)
Title: Improvements in or relating to machines for the wet treating of fabrics
IPC: D06B3/10
Filed: 1979-02-07
Abstract: A washing and milling or fulling machine comprises squeezing rollers 4, 11 and a fabric guide roller downstream of a fabric guide frame 2.   A driven belt conveyor 16, acted on by a counter-weighted pressure roller 18 uniformly feeds the continuous and endless fabric web T made by a plurality of pieces of fabric sewn together towards and between the squeezing- rollers 11, 4. A member 21 senses the tension in the web T and increases the speed of one of electric motors 17, 10 driving, respectively, a drive roller 15 for the belts 16 and belts 7 which drive the roller 4 to decrease or increase the web tension as required. If the motor 10 stops suddenly, the fabric accumulates in a member 23 which pivots to operate a micro-switch to stop the machine. In a modification, the belts 16 are omitted and the belts 7 extend around rollers 15, 15'. In another embodiment, Figure 3, means are provided for shifting the upper squeezing-roller 11 in a parallel path from a first position vertically misaligned relative to the lower squeezing- roller 4, to a second position vertically aligned with respect to the lower squeezing roller 4, and vice-versa, so as to improve the operating speed of the machine and to impart a slight fulling to the web T during the washing treatment thereof when the said upper roller 11 is in said first position. <IMAGE>
Patent GB-2042781-A (GB)
Title: Voting apparatus
IPC: G07C13/00
Filed: 1979-02-21
Abstract: The invention relates to a visual display device for use in visually indicating a percentage of responses of a total number of responses. Such a system may be used as a teaching aid or for recording the number of votes cast. The system of the invention comprises a visual display device, such as an overhead projector having an indicator movable on a percentage scale responsive to a plurality of switches 1, 2, 3, preferably push button, each switch being capable of indicating a response on the visual display device, the plurality of switches being incorporable into a first circuit, a control device incorporating a plurality of controls 13-18 each control individually or in combination being incorporable by selector means into a second circuit and each control being adjustable so that when the second circuit is in combination with the first circuit a selectable percentage valve is obtainable from the visual display device. <IMAGE>
Patent GB-2018989-A (GB)
Title: Uric Acid Standard Solutions
IPC: G01N33/96
Filed: 1979-04-12
Abstract: A stable uric acid solution usable as a standard in the determination of uric acid in body fluids comprises a buffer solution to maintain a pH of 6- 7 and a known concentration of uric acid present in the solution as a soluble salt of the major pH- controlling component of the buffer, the component having a pK value of 5-7.5. The solutions can be used as standards in enzymatic or non- enzymatic determinations. Buffers containing weakly basic amines, e.g. imidazole, pyridene or collidine, or organophosphorus compounds, e.g. dimethyl phosphorus, or conjugated oxygen compounds, e.g. pyrilium, may be used.
Patent GB-2022049-A (GB)
Title: Motor-Driven Chain Block
IPC: B66D3/22
Filed: 1979-05-21
Abstract: A motor-driven chain block has a main frame comprising a pair of steel plates 9 and 10, a motor 4, a reduction gear mechanism 6 comprising gears 12, 19, 17 and a sprocket 15 which is driven by the motor 4 through the gears to wind a chain 16. The motor 4 in a housing 4C extends through an aperture 10A in the plate 10 and into a recess 9A in the plate 9. The heavy stator core 4A, is disposed between the plates 9 and 10, ensuring that the weight of the block is sufficiently well balanced to allow it to hang vertically when suspended, the gear mechanism 6, braking mechanism 7, and sprocket 15, all being compactly arranged to give a small and light weight block. Furthermore the tight fit of the stator core 4A in the recess 9A and the motor housing 4C in the aperture 10A produces a particular overall rigidity of the block. <IMAGE>
Patent GB-2024328-A (GB)
Title: Multi-stage centrifugal compressor
IPC: F04D17/12
Filed: 1979-06-15
Abstract: Each stage 1, 2, 3 is driven independently of any other stage by its own drive 4, 4', 4'', such as a D.C. electric motor fed with rectified A.C. current, an internal combustion engine or a turbine. Intercoolers 7, 7', an inlet silencer 5 and, it may be, an outlet silencer are provided. <IMAGE>
Patent GB-2025064-A (GB)
Title: Wheel Alignment
IPC: G01B7/315
Filed: 1979-07-02
Abstract: A system for generating a sequence of steps to instruct a mechanic in aligning the wheels of a vehicle has means 29 for sensing the camber of a wheel 27, means 26 for sensing its rotational position and computer means for calculation of a table of camber corrections at a series of rotational positions. The sensors which include a toe in sensor 44, are carried by a wheel clamp assembly 22. The rotational position of the steering wheel is also supplied so that it can be squared up with respect to the vehicle when the vehicle travels straight ahead. <IMAGE>
Patent GB-2030010-A (GB)
Title: Driving electric kitchen appliances
IPC: A47J44/02
Filed: 1979-08-13
Abstract: Inside one arm of an L-shaped casing is an electric motor (34) which transmits drive via a belt and pulley transmission to a worm and worm wheel transmission accommodated in the second arm: from the arms power take-offs (2, 5) protrude outside to a working space, the driving shafts being perpendicular to each other. The driving device may be used either as a free-standing one, or built into an item of kitchen furniture in which case it can pivot about supporting pins (10) connected to the top of the item of kitchen furniture, and either available to be used or swung into a recess, held in both positions by means of a friction link mechanisms. <IMAGE>
Patent GB-2028996-A (GB)
Title: Plate-type heat transfer apparatus
IPC: F28F3/10
Filed: 1979-08-30
Abstract: In a heat transfer plate having therein a gasket groove 7 with a base and side walls, a compressible gasket 8 fitted into said groove has projections 10 protruding from its base surface and engaging in matching apertures 9 in the base of the gasket groove 7, whereby the gasket is mechanically secured to the plate in a readily releasable manner. <IMAGE>
Patent GB-2032254-A (GB)
Title: Briefs
IPC: A41B9/02
Filed: 1979-10-08
Abstract: A pair of briefs comprising a front panel 5, and a rear panel 16 spaced apart by a crotch panel 17 which has opposed edges secured to the front and rear panels, the front and rear panels each having an upper edge which together surround the waist opening of the briefs, the front and rear panels each having a lower edge, the rear panel being secured along its lower edge to one of said opposed edges of the crotch panel, the other of said opposed edges of the crotch panel being secured to a lower region of the front panel, and a hydrophilic layer which is co-extensive with the crotch panel and which is secured to said opposed edges of the crotch panel. <IMAGE>
Patent GB-2064320-A (GB)
Title: Intra-ocular irrigation fluid
IPC: A61K9/00
Filed: 1979-10-13
Abstract: An intraocular irrigation fluid for replacing the aqueous humour of the eye, comprises an aqueous solution containing sodium chloride, potassium chloride, calcium chloride and N-2- Hydroxyethylpiperazine-N-2- ethanesulphonic acid. Sodium hydroxide may be included to establish a pH value of about 7.25 and magnesium sulphate may also be included.
Patent GB-2039895-A (GB)
Title: 4-Substituted- 2(1H)quinazolinones
IPC: C07C275/50
Filed: 1979-12-07
Abstract: Novel compounds of the general formula:   <IMAGE> wherein R1 is a C4-20 alkyl group or a cycloalkyl group; and X and Y are each a hydrogen or halogen atom, a nitro, loweralkyl, loweralkoxy, aryl, arylalkyloxy, hydroxy, acyloxy, aryloxy, amino, loweralkylamino, diloweralkylamino, amido, loweralkylamido, diloweralkylamido, cyano, COOH, COO loweralkyl, CHO, CH2OH, CH2O acyl or CH2O aryl, and pharmaceutically-acceptable acid addition salts thereof, which are useful in the treatment of hypertension and bradycardia and as a cardiotonic agent, may be prepared by cyclisation. The same use of further compounds of the above formula in which R1 is also H, heterocycloalkyl, COO lower alkyl, CN, COOH, CH2OH, CH (O loweralkyl)2 or NO2, with the proviso that when X and Y are both lower alkoxy R1 is not H, is also claimed.
Patent GB-2039462-A (GB)
Title: Controlling arc welding
IPC: B23K9/08
Filed: 1979-12-07
Abstract: In the automatic control of welding by monitoring the radiation from the back face of a weld being produced by an electric arc directed onto the front face so thereby to detect incipient breakthrough, the sensed radiation providing a signal for controlling the power into the arc and/or the rate of traverse, the control operation is improved by providing a solenoid 30 or annular permanent magnet around the welding head 11 to produce a magnetic field aligned with the arc; this field, in conjunction with the arc current flowing into the workpiece through molten metal in the weld pool causes stirring of that metal so giving a more uniform heat distribution and thereby eliminating or reducing random spikes in the electrical output signal from the radiation sensor. <IMAGE>
Patent GB-2040308-A (GB)
Title: Process for manufacturing smokeless agglomerate fuels, smokeless agglomerate fuels thus prepared and oven for use in this process
IPC: C10L9/08
Filed: 1980-01-18
Abstract: Process for manufacturing smokeless agglomerate fuels from agglomerates of carbonaceous material, in particular coal and/or coke particles and a bituminous binder, which comprises subjecting the agglomerates to an oxidizing heat treatment in at least three stages using hot gas and then cooling the agglomerates, the first stage being a heating and drying step, the second stage being an oxidation step, and the third stage being a finishing oxidation step. An oven suitable for the process may be a travelling grate oven having 3 or more zones.
Patent GB-2071022-A (GB)
Title: A vehicle primarily intended for the transportation of livestock
IPC: B60P3/04
Filed: 1980-02-12
Abstract: The vehicle has a body portion including transverse frame members 12 and a plurality of longitudinally arranged aluminium alloy panels 10 each of which has an integrally formed longitudinally extending stiffening rib 14 of trapezoidal cross-section. The sides and roof of the vehicle have ventilation openings 30, 34, therein, the size of which is sufficient to give 40% ventilation, that is sufficient ventilation for the livestock when the vehicle is parked. As a result of the rigidity of the construction no chassis is required and the rear wheel assembly of the vehicle is attached directly to the load carrying compartment. <IMAGE>
Patent GB-2044165-A (GB)
Title: Extruding cross-linked sheaths around elongate material, in particular electric cables
IPC: B29C48/06
Filed: 1980-02-18
Abstract: The sheath comprises one or more olefin polymers or copolymers crosslinked by means of one or more peroxides, the initially peroxide-free olefin (co)polymer being melted and homogenised in an extruder (2), from which it is delivered to the extrusion die (6) by a further extruder (5), one or more peroxide crosslinking agents being metered into the molten and homogenised material between the extruders (6,5), or in the further extruder (5). The process enables the melted polymer to be filtered, and degassed, prior to the addition of the cross-linking agent, thereby avoiding incipient cross-linking which would otherwise arise with shear heating of the agent(s) during filtering, and thereby also avoiding the distribution of the agent(s) being affected by the degassing. <IMAGE>
Patent GB-2045699-A (GB)
Title: Vehicle boarding platforms
IPC: B60P1/44
Filed: 1980-04-03
Abstract: The platform has a step (10) mounted on a vehicle (12) beneath an entrance thereof. The step (10) is moved between extended and retracted positions by means of a double-acting actuator (20) and is guided by paralleled telescopic members (18). Actuator (20) may be hydraulic or pneumatic; if pneumatic it may be powered from the vehicle air brake pressure source. A mechanism may be provided to indicate to the driver when the step (10) is extended. <IMAGE>
Patent GB-2073728-A (GB)
Title: Compositions for Making Moulds
IPC: B22C1/00
Filed: 1980-04-16
Abstract: A material for use in the manufacutre of moulds comprises plaster of paris or other cementitious material and a material having good heat absorbing qualities and the ability to substantially reduce the density and increase the gas porosity of mould e.g. diatomaceous earth.
Patent GB-2051709-A (GB)
Title: Means for connecting track links of a track for a tracked vehicle
IPC: B62D55/205
Filed: 1980-04-23
Abstract: Means for connecting track links of a track for a tracked vehicle comprise a pin for mounting in a track link, and a connector having a surface for embracing a peripheral surface of the pin, this peripheral surface of the pin being, viewing the pin in cross-section, of a contour which is stepless and which deviates from a circular shape, and the said surface of the connector being of a counterpart contour in relation to said peripheral surface of the pin. The arrangement enables track links to be connected positively and frictionally whilst obviating susceptibility of the pin to cracking. In the Figure a connector for a track of the double joint-pin kind has an opening 13 the wall of which embraces a pin 1 having a stepless cross-section which deviates from a circular shape and the periphery of which is formed by six circular-arc portions having two different radii 3, 4 the centres B of which are mutually offset by 120 DEG and lie eccentrically with regard to the centroid of the cross- section. The wall of opening 13 is of counterpart cross-section as shown. In another embodiment the connection means is for a track of the single joint-pin kind. Other exemplary pin cross-sections have the shape of an octagon having transitional radii, an ellipse, and a tetragon having transitional radii. <IMAGE>
Patent GB-2075833-A (GB)
Title: Injectable solution of sulfamethoxypyridazine and trimethoprim
IPC: A61K47/22
Filed: 1980-05-20
Abstract: An injectable, physiologically acceptable one-phase, long-acting solution, having a pH of 5.7-7.5 comprises 10 - 40% of a mixture of sulfamethoxypyridazine and trimethoprim in a weight ratio of 3.5:1 -7:1 in a solvent comprising 4-hydroxymethyl-1,3- dioxolane and 5-hydroxy-1,3-dioxane.
Patent GB-2077194-A (GB)
Title: Paperhandling in a Printer
IPC: B41J11/20
Filed: 1980-05-27
Abstract: A matrix printer has a platen 6 movable toward and away from the printing head 1 to compensate for variations in thickness of a record medium 4. A bar 2 provides a guide face 3 for the print receiving surface or one medium 4. Sensor arm 13 and roller 15 detect whether the platen 12 is not positioned so the medium 4 is adjacent the face 3. The arm 13 operates a switch 16 which may control means to position the platen 12 or an indication to an operator when the platen is positioned correctly. <IMAGE>
Patent GB-2053168-A (GB)
Title: Packet reservoir
IPC: B65G47/51
Filed: 1980-07-02
Abstract: A reservoir (14), particularly for cigarette packets, stores rectangular arrays of packets (12) on vertically- spaced platforms (18). The reservoir is filled or emptied by moving successive batches of packets transversely off (or onto) a conveyor (10) on which packets are moved in line, e.g. from a cigarette packing machine to a cigarette wrapping machine. When a platform (18) is completely full it is indexed upwards and another platform moved from a store to take its place. The spacing between adjacent platforms (18) in the empty platform store is less than that between platforms in use for supporting packets; this is achieved by supporting the platforms (18) by tapes (20), similar to those of a venetian blind. <IMAGE>
Patent GB-2154802-A (GB)
Title: Tracking correction for radar antenna
Inventor: WALKER DONALD FERGUSON
IPC: H01Q1/42
Filed: 1980-07-11
Abstract: A tracking servo system for a radar antenna enclosed in a radome includes actuator means AC which will respond to command signals, C, to make the antenna move to the required bearing in azimuth and elevation, and corrects bore sight errors due to radome refraction. A pick-off AS measures the position of the antenna, and a look-up table ROM provides corresponding correction signals in the tracking servo. <IMAGE>
Patent GB-2080848-A (GB)
Title: Waterproof coating for floor
IPC: E04D11/02
Filed: 1980-07-26
Abstract: A water proof coating (11) comprising a cured resin as applied to the upper surface of a floor 10 of a multi-storey building. The coating includes aggregate particles (12) which are partly exposed at the upper surface of the coating. The coating prevents water penetration downwardly into lower storeys of the building and may be used when the building is under construction or when upper storeys have been damaged by fire. <IMAGE>
Patent GB-2057779-A (GB)
Title: A flexible tubular casing for electric cable
IPC: H01B7/18
Filed: 1980-08-06
Abstract: A flexible tubular casing which withstands high pressures and high tractive efforts when used with undersea cables is thin, continuous and helically corrugated with deep grooves (3) and is provided with reinforcing wire (4) placed in the grooves of its corrugations. The cross-section of the wire is several times the thickness of the casing and is approximately the same as the distance between the outside surfaces of two consecutive grooves at the mean fibre point of the wire. Jute matting may be located between the corrugations and the wire which may be of part circular or rectangular cross-section (Figs. 2 and 3 not shown). One or more outer layers of reinforcing wires may be wound around the outside of the casing in the same or opposite sense to the helical reinforcing wire (Figs. 4 & 5 not shown). Metal or plastics trips may cover the whole assembly. <IMAGE>
Patent GB-2059623-A (GB)
Title: Instrument for the subjective determination of the refraction of an eye
IPC: A61B3/028
Filed: 1980-09-16
Abstract: The invention relates to an instrument for the subjective determination of refraction of the eye and which comprises a first optical element (3) which forms an image of optotypes (13) in its focal plane on the image side, and a second optical element (4), placed after the former in the optical path, which forms an image of the optotypes on the side towards the eye (7) to be examined. The distance of the object side focal point (F4) of the second element (4) from the image side focal point (F'3) of the first element (3) is variable for the purpose of determining the refraction. The instrument makes it possible to determine the refraction value both for a spherical correction and for a cylindrical correction. <IMAGE>