baber/WOPTO huggingface dataset:
Patent GB-1283760-A (GB)
Title: Improvements in or relating to optical comparison systems
IPC: G01N21/956
Filed: 1969-12-30
Abstract: 1283760 Optical comparators THOMSON CSF 30 Dec 1969 [31 Dec 1968] 63379/69 Heading G2J In an optical comparison system for comparing a master object with a reproduction the objects e.g. printed circuit boards, are carried on holders and an image switching device operates at a variable speed to enable alternate viewing of the images which are superimposed by two mirrors at least one being semi-transparent. In one embodiment the system comprises a semitransparent mirror 3, a mirror 5, and eye-pieces 1 contained in a mounting 2 which can move along the optical axis "O" on an inclined plane 8 of a support 9. The objects are carried on holders 4, 6 which can rotate about axes Y 1 , X 1 , X 2  and have their parallelism maintained by a rigid link 7. Translational motion perpendicular to the axis 'O' is also possible. In Fig. 2 (not shown) the image switching is by the cross-polarization of polarizers (11), (12) positioned symmetrically about mirror 3 and a rotating analyzer disc (13) driven by a variable speed motor (not shown). The holders 4, 6 are episcopically illuminated by a source (14). In Fig. 5 (not shown) a semicircular disc (22) having a matt black upper surface and a reflecting lower surface is located below the mirror 3 and rotates to permit alternate viewing. In Fig. 6 (not shown) a toggle plate fixed to one end of mirror 3 rocks between positions (23), (24) to perform the switching. In Fig. 4 (not shown) the holders are illuminated from above by respective sources (20), (18) and from below by sources (21), (19) thus enabling either episcopic or diascopic illumination or both. The image switching is performed on the sources by electromechanical or electronic means. In Fig. 3 (not shown) mirrors 3 and (15) are both semitransparent and an assembly (16) containing interchangeable light source and sighting mark holder is located above the holders 6, 7 and is reversely coupled to them by a link 17 to maintain the superimposition of the images and the sighting mark during rotation.
Patent GB-696010-A (GB)
Abstract: 696,010. Moulding tubular pipe coverings &c. PABCO PRODUCTS Inc. Nov. 5, 1951 [Nov. 25, 1950], No. 25807/51. Class 87 (ii). Apparatus for moulding tubular insulation from calareous and silicious materials in the form of slurry comprises a tubular outer mould 6 and a mould core 28, a closure member with drainage passages at one end of the mould and an ejecting piston 31 having a number of actuating rods 29 which extend with clearance through the drainage passages in the closure member. The closure member in the construction shown in Figs. 1 and 4 comprises a flanged block 33 mounted in a circular sleeve 36 underneath the base plate 9. The actuating rods 29 pass through the sleeve 36 between the flanges of the block 33. The block 33 also serves as a distributing member for heating fluid which enters the core 28 through pipe 43 and is drained through pipes 49, 51. The outer mould 6 may be constructed in the manner described in Specification 695,613 from an outer tubular shell 3, Fig. 1, having a lower annular recess 14 and a removable inner shell 4 having a flange fitting within the recess 14. Heating fluid is curculated within the jacket formed by the shells. In the construction of Fig. 7 the base plate 72 forms the closure member and the actuating rods 29 pass through a number of arcuate slots 93 formed therein. The fluid distributing member comprises a cylinder 82 screwed into the base 81 of the core '28. The core 28 is clamped against the base plate by means of a screw 86 on the distributing member 82. Heating fluid enters through an inlet 88 and is drained by pipe 89. Heating fluid may be circulated in the outer mould 6 which, as shown in Fig. 7, is now collapsable.
Patent GB-2001391-A (GB)
Title: Gas turbine engine air intakes
IPC: F02C7/045
Filed: 1978-06-30
Abstract: A gas turbine aeroengine has an air intake 19 which is designed to be subchoked at a certain known troublesome noise-producing condition, the intake being provided with an extended throat region L whose walls comprise, at least in part, sound attenuating linings 27, 29 of the resonant cavity or bulk absorber type. <IMAGE>
Patent GB-2002385-A (GB)
Title: Steroid hemiesters and their use in radioimmunoassays
IPC: C07J1/00
Filed: 1978-08-14
Abstract: Radiolabelled steroid derivatives having the formula   <IMAGE> wherein St is a des-hydroxy steroid moiety of (i) a hydroxy steroid intended for radioimmunoassay or (ii) a hydroxy containing derivative of a steroid intended for radioimmunoassay, said derivative having a strong affinity for the antibodies of the steroid intended for radioimmunoassay; R is hydrogen or alkyl of 1 to 3 carbon atoms; n is 0, 1, 2, 3, or 4 and the asterisk (*) indicates tagging with a radioisotope, are useful as tracers in radioimmunoassays. The unlabelled steroids and precursors thereof are also described.
Patent GB-2007555-A (GB)
Title: Grinding Machine comprising a Roll Support
IPC: B24B5/37
Filed: 1978-09-15
Abstract: Roll grinding machine comprises a neckrest 26 comprising a base unit mounted on ways for sliding movement parallel to the machine axis lengthwise of the roll 24 to a suitable position for supporting the roll, the base unit carrying a pair of bearing assemblies 40 42 on which the roll is carried. The bearing assemblies can be adjusted along paths normal to the machine axis to accurately align the work in the machine by means which for one of the assemblies provides both coarse and fine adjustment, the fine adjustment being provided by a reduction gearing system. The bearing assemblies are so mounted that the load is transferred to the main frame directly, to provide good stability. <IMAGE>
Patent GB-2006703-A (GB)
Title: Vehicle anti theft device
IPC: B60R25/022
Filed: 1978-10-13
Abstract: An anti-theft device for autos utilizing a steering wheel 3 that can be separated from a steering shaft 1 and returned to a working position when desired. The device includes an intermediate part 2 permanently connected to the steering shaft and has grooves or ribs 9, 10 mating with a central steering wheel part 2. The interconnection mechanism can be altered so that each intermediate part and steering wheel form a different mating configuration. The anti-theft device also has light signals to register the absence of the steering wheel and electrical contacts capable of acting on control signals and/or other automobile operation mechanisms to signal proper connection between the intermediate part and the steering wheel. <IMAGE>
Patent GB-2041661-A (GB)
Title: Anchoring cables
IPC: H02G3/06
Filed: 1979-01-16
Abstract: An electrical appliance has a casing with an opening 16 through which a cable 15 extends to a terminal block 14 disposed within the casing. A portion of the cable lying between the opening 16 and the terminal block 14 lies within a holding means to prevent significant lateral movement of the cable the holding means extending from a cable clamping means to the opening 16. In the embodiment shown, the holding means comprises a tube 18, 19 which is fixed with respect to the casing. The clamping means comprises a clamping bar 20 transverse to the length of the tube and lying in a slot of the tube so as to engage the cable to prevent longitudinal movement thereof and also prevents longitudinal and rotational movement of the tube. <IMAGE>
Patent GB-2041940-A (GB)
Title: Method of Coupling a Protein to an Epoxylated Latex and the Products Formed Therefrom
IPC: C12N11/08
Filed: 1979-02-17
Abstract: A latex-protein conjugate is formed by reacting two-layer particles of a latex having free epoxy groups with a protein having a reactive group. The conjugates may be used in diagnostic tests and enzyme detection.
Patent GB-2018927-A (GB)
Title: Improvements in or relating to connector
IPC: F16L37/58
Filed: 1979-05-02
Abstract: A connector comprises a plunger 26 having a cavity 27 at one end which is in communication with a hollow spigot 28' to which a flexible conduit can be connected. The plunger 26 is slidable within a tubular housing 24 and is biassed by a spring 32. A lever 35, which has a pivot point 37 on a fulcrum, passes into the housing 24 and engages part of the plunger to enable the plunger to be moved against the bias of the spring 32, to move it out of engagement with a seal 21 as shown. <IMAGE>
Patent GB-2025287-A (GB)
Title: Cylinder Head for an Internal Combustion Engine
IPC: F02F1/24
Filed: 1979-05-18
Abstract: A cylinder head (10) for an internal combustion engine wherein each exhaust conduit (14) contains a heat-transfer reducing sheet metal tube (26) which is thermally insulated from the respective exhaust conduit (14) by a layer (32) of thermally insulating varnish. The tube is fixed into the head by composite casting. <IMAGE>
Patent GB-2053297-A (GB)
Title: Wire-netting support for lining in mining and tunnel construction
IPC: E21D11/15
Filed: 1979-07-13
Abstract: The support material for lining in mining and tunnel construction to enable back-filling to be performed comprises a narrow-mesh structure (2) of wire or e.g. glass fibre which is welded between intersecting bars. The bars (4) of wire or plastics extending on one side of the wire mesh structure in the longitudinal orientation thereof have a smaller cross-section than the bars (3) of larger cross-section which extend on the other side of the wire mesh structure perpendicularly with respect to the first bars. Flexible and weldable longitudinal elements (8) are arranged alongside the wires (4) on the side of the wire mesh structure (2) which has the crossbars (3). The said longitudinal elements have offset portions (8a) adapted to accommodate the crossbars (3). Welding is performed between the flexible longitudinal bars (4), the mesh structure (2) and the longitudinal elements (8). <IMAGE>
Patent GB-2030185-A (GB)
Title: Apparatus for electrically controlling the wire pull in high-speed stranding machines
IPC: B65H59/38
Filed: 1979-07-13
Abstract: The invention relates to an apparatus for electrically controlling the wire pull in a high-speed stranding machine, in particular a machine of the tubeless kind, the apparatus controlling the wire pull force in dependence on the speed of rotor rotation and the varying torque at the delivery spools, the apparatus comprising an electric current producing means 1 in the form of a generator driven by the shaft journal 12 for producing electric current for an electromagnetic spool braking system 6 within the rotating system of the high-speed stranding machine, for each delivery spool 4, the generated current which is produced upon rotation of the stranding rotor 13 controlling the energisation system 15 of the electromagnetic spool brake 6, by way of a non-linearity means 2 and a control member 5, with actuation of a regulator 3 which is coupled to a measurement value detection means 16. <IMAGE>
Patent GB-2033519-A (GB)
Title: Flexible hose
IPC: F16L47/32
Filed: 1979-08-03
Abstract: A flexible hose having a branch hose connected thereto, comprises a main hose (9) and a branch hose (10), each having reinforced plies (11) and connected together by means of an adhesive bond in the region of a bore (19) provided in the main hose (10). A filler rubber (29) is pressed bead-like in the abutment region and a textile fabric (15) is wrapped around the hose (9) after having been placed over the branch hose (10) by spreading the warp filaments of the fabric (15) apart. The fabric (15) has a central portion wherein the spacing between the warp filaments is relatively large in comparison with the edge regions, so that these warp filaments can be readily displaced in the weft direction. <IMAGE>
Patent GB-2027321-A (GB)
Title: Planting machine
IPC: A01B75/00
Filed: 1979-08-16
Abstract: A planting machine comprises a chassis 14 on which a pair of front wheels 16 and a pair of driven wheels 22 are rotatably mounted and a seating arrangement 42 disposed between the front and rear wheels. Operatives sit thereon in close proximity to the soil to enable plants to be easily inserted in furrows or indentations in the soil which are produced by a planting mechanism mounted adjacent to the front wheels of the machine; the front and rear wheels of the machine being arranged to follow the wheel tracks of an agricultural tractor which has prepared the soil prior to commencement of the planting operation. <IMAGE>
Patent GB-2027589-A (GB)
Title: Fire extinguishing or fire preventing sawdust compositions
IPC: A62D1/00
Filed: 1979-08-17
Abstract: A fire extinguishing or fire preventing composition comprising sawdust combined with a dry colouring material which reacts with the sawdust at elevated temperatures to improve the fire extinguishing properties. In one form the colouring material comprises a transition metal compound such as ferric oxide Fe2O3 which forms complexes with glucose units derived from the cellulose in sawdust. In another form the colouring material is organic, for example, an azo-compound which forms a complex with the cellulose in the sawdust, and this also improves the fire extinguishing properties.
Patent GB-2028239-A (GB)
Title: Improvements relating to vehicle wheels
IPC: B60B15/26
Filed: 1979-08-31
Abstract: A vehicle wheel attachment offers an increased tread to support the vehicle on soft ground, snow or sand. A rigid version has a body (5) of revolution which is clamped co-axially against the wheel (1) using a screw device (7) anchored to the studs which mount the wheel. The body is generally frusto- conical and may be made buoyant or be ballasted. There are also inflatable and telescopic versions which can be collapsed and stowed against the wheel. <IMAGE>
Patent GB-2031816-A (GB)
Title: Attaching hub caps to wheels
IPC: B60B7/08
Filed: 1979-09-17
Abstract: A hub cap comprises a body 12, and a plurality of lugs 16 extending from the rim of the body and each formed with at least one outwardly projecting resilient tongue 32 to contact with the inner surface of a lip portion 22 surrounding the central aperture of a disc wheel 20, to secure the cap to the wheel. The illustrated cap has an integral rib 14 but this may be omitted. The lugs 16 may also be omitted and the tongues 32 formed directly on the rim of the cap. <IMAGE>
Patent GB-2045883-A (GB)
Title: Pipe joint
IPC: F16L47/08
Filed: 1979-10-24
Abstract: A pipe fitting comprises a male member 10 and a female element 3, the element 3 having a wide section 4 of a diameter greater than the diameter of the male member 10. A flange 7 is provided on the element 3 substantially parallel to the wide section 4 and spaced radially inwardly thereof. The flange 7 and the wide section 4 together form a socket 8. The male member 10 slides into the socket 8 to form the joint. In the preferred form of the device, a retaining groove 5 is provided on the wide section 4. The groove 5 contains a sealing ring 6 which bears against the outer wall of the male member 10. <IMAGE>
Patent GB-2041278-A (GB)
Title: Belt shaver or rebating device
IPC: B26D3/06
Filed: 1979-12-03
Abstract: A rebating device for forming a rebate in the end of a conveyor belt 2 comprises an elongate housing (10) along which a carriage (12) carrying cutter blades (62, 64) is displaced by rotation of a threaded shaft (26), whereby the cutter blades are passed adjacent a support (4) on which a clamp (3) secures a belt end to be rebated. A lateral skid (54) towards the bottom of carriage (12) supports the belt end region being cut but in a modification is replaced by a lateral extension of the housing itself. <IMAGE>
Patent GB-2037553-A (GB)
Title: Cutter wheel for a tillage implement
IPC: A01C5/06
Filed: 1979-12-17
Abstract: The cutter wheel 12 is employed to cut furrows in grassland. The cutter wheel includes a central disc portion 50 with an outer periphery defining a plurality of equally spaced slots, each receiving a tip-holding insert 68. A bullet-shaped tungsten carbide tip 70 is hard soldered or brazed to the tip-holder and the holder 68 is welded to the disc 50. The disc periphery 62 is shaped to allow cutting clearance for the tip, protect the tip from breaking off, and at the same time provide rear support for the tip-holder. The angle at which the tip 70 is connected to the holder 68 is so chosen that the brazed or soldered joint is loaded primarily in compression as the wheel cuts through the soil. <IMAGE>
Patent GB-2038356-A (GB)
Title: Method of Improving Fuel Economy of an Internal Combustion Engine and Composition Therefor
IPC: C10N30/00
Filed: 1979-12-18
Abstract: The fuel economy of an internal combustion engine is improved by incorporating in the lubricating oil used to lubricate the crankcase of said engine from 0.25 to 2 weight percent of a fatty acid ester of glycerol, such as glycerol monooleate or glycerol tallowate. The fatty acid ester can be added to lubricating oil to form a lubricating oil composition.
Patent GB-2041668-A (GB)
Title: Ferroresonant stabiliser for TV
IPC: H01F38/42
Filed: 1980-01-22
Abstract: The primary winding 65a of a ferroresonant transformer 65 is driven from power source 35, which comprises line frequency triggered oscillator 45 and squaring limiter 37, 38. The secondary windings 65b, 65c of the transformer are wound around saturable core portion 165b, and resonance at line frequency is achieved by self capacitance 665 or a discrete capacitor 91. The secondary resonant currents saturate the core during each half cycle, and the induced voltages in both secondaries are consequently regulated. One voltage is arranged to be the EHT voltage U, and the other, the sweep voltage V. The invention avoids the need for separate B<+> and EHT regulators, or a series stabiliser resistor or sensing beam current changes. <IMAGE>
Patent GB-2042456-A (GB)
Title: Telescopic crane
IPC: B66C23/687
Filed: 1980-02-04
Abstract: A crane with a jib having telescopic parts (10, 11, 12) and a jib head (13) on the upper most part (12) has two sets of stationary sheaves (16, 23). One set (16) is mounted on the jib head (13), but the second set (23) is mounted at the top of the bottom jib part (10). The hoist rope (15) is reeved through both sets of sheaves (16, 23) and through sheaves (21) in the lifting block (17). With this arrangement, when the jib is retracted, which is when the crane can lift its maximum load, only part of this load is transmitted to the jib head (13). In consequence the head (13) can be made lighter and this makes it possible to increase the maximum lifting capacity of the crane. When the jib is extended so that the crane can only lift lighter loads, the hoist rope (15) is reeved through some of the sheaves (21) in the lifting block (17) and through the sheaves (16), the sheaves (23) being missed out. <IMAGE>
Patent GB-2073602-A (GB)
Title: Diffuser for aeration and agitation of liquid
IPC: B01F15/02
Filed: 1980-03-28
Abstract: A diffuser is defined in part by a porous member 13 and the passage whereby gas under pressure can flow into an enclosure includes a non-return valve 24, 25 permitting gas under pressure to flow into the enclosure but preventing a reverse flow of liquid, in a fault situation, back into the gas supply pipe. In another aspect the invention resides in a diffuser for attachment to a gas supply pipe, the diffuser including a hollow unit defined by a porous member 13 and a base plate 11, the two being secured together and being sealed at their periphery. The sealed unit is provided with coupling means for securing it to a gas supply pipe. <IMAGE>
Patent GB-2048901-A (GB)
Title: Preparing Conductive Molding Compositions
IPC: B29B7/22
Filed: 1980-04-24
Abstract: To produce dimensionally stable molding compositions at elevated temperatures without undue stiffness, on a commercial scale, low density conductive carbon black agglomerated particles are finely divided to a particle size below 0.044 millimeter, e.g. by bombardment in a mill 16 containing rotating intermeshing pins. The reduced size particles are then added in a portionwise manner to a PVC resin in a closed system e.g. including a high intensity vortex mixer 22, in a continuous process. The process ensures more uniform dispersion of the carbon black into the PVC resin and uniform bulk and surface properties of articles molded from the resultant resin. <IMAGE>
Patent GB-2075167-A (GB)
Title: Lens for high intensity lamp fixtures
IPC: F21V5/02
Filed: 1980-04-28
Abstract: A lighting system includes lighting fixtures including a high intensity discharge lamp and a lens. The lens is formed as a dropped square pyramid with four triangular lower panels 21 and four generally vertical side panels 19. Prisms on the inner and outer faces of the lens produce a higher luminous intensity at an angle of about 30 DEG  to 50 DEG  than at nadir and project light at higher angles toward the corners of the lens than perpendicular to the sides of the lens, thereby producing a generally square, wide-spread light distribution pattern. The lens cuts off high angle light (with respect to nadir), thereby reducing glare. Some light may be directed onto the ceiling around the fixture to relieve contrast. <IMAGE>
Patent GB-2078451-A (GB)
Title: Method and apparatus for starting electricity generators
IPC: H02P9/08
Filed: 1980-05-28
Abstract: A polyphase salient pole electric generator set is started by using the phase windings (A, B, C) of the generator as a motor until ignition of the internal combustion engine or gas turbine driving the set. Pulses are injected into at least one phase winding when another phase is opposite a salient pole thereby applying a torque to the rotor (1) at increasing frequency as the machine speeds up. Injection of the pulses is controlled by position sensors (5) transmitting signals to a direct current inverter (3) when coincidence occurs. The position sensors are preferably apertures in a rotating disc (2), through which light is transmitted to phototransistors when coincidence occurs. <IMAGE>
Patent GB-2076624-A (GB)
Title: Improvements in towbar linkages primarily for towing agricultural implements
IPC: A01B73/02
Filed: 1980-05-30
Abstract: A towbar linkage for towing a pair of large, heavy, agricultural implements such as ballast rollers consists of leading (14) and trailing (16) towbar sections one end of each of which is articulated about a generally upright axis to a static intermediate section (18) adapted to be rigidly secured to the frame of the front implement at or near one side thereof. The free end of each of the leading and trailing sections has an appropriate coupling of conventional design for connection to the tractor hitch or to the normal towbar of the rear implement respectively. Each of the leading and trailing sections is locked in either of two alternative working positions by a strut pivoted thereto at one end and anchored to the frame of the front implement by a removable cotter. In the transport position, the two implements are aligned with the tractor in tandem; in the working position the front implement is offset from the tractor to one side by half its width and the rear implement is offset to the other side by half its width, the change-over being effected without the necessity of unhitching and manhandling either implement. <IMAGE>