baber/WOPTO huggingface dataset:
Patent GB-2036129-A (GB)
Title: Trench Digging Apparatus
IPC: E02F5/10
Filed: 1979-08-28
Abstract: The present specification describes and claims a trench digging apparatus comprising a cutter wheel (2) with picks (3) projecting from the outer periphery thereof. Drive means are provided to rotate the cutter wheel (2) about a substantially horizontal axis. The cutter wheel (2) is supported by a support frame (9) which is pivoted to a basic framework (1) of the apparatus by spherical and eccentric hinge bearings (10, 11). These hinge bearings (10, 11) allow a limited amount of movement about a vertical axis as well as pivotal movement about a horizontal axis. The movement about a vertical axis allows the cutter wheel (2) to turn or be oscillated to free the apparatus, correct for crabbing or enhance cutting, and the movement possible about the horizontal axis enables the trench depth to be varied. <IMAGE>
Patent GB-2033937-A (GB)
Title: Bleaching and cleaning composition
IPC: C11D3/39
Filed: 1979-09-26
Abstract: An improved bleaching and cleaning composition comprising a percompound and an organic activator therefor having at least one   <IMAGE> group in the molecule wherein RCO represents a carboxylic acyl radical, of which the peracid generation and bleaching performance are enhanced by the incorporation therein of a compound selected from the group having the following general formulae:   <IMAGE> wherein n=1-4; and X=H or an alkali metal or alkaline earth metal of ammonium cation;   <IMAGE> wherein n=0-2; X=H or an alkali metal or alkaline earth metal or ammonium cation  Y=H, CH2COOX or CH2PO3X2  Z=H, CH2COOX or CH2PO3X2  (X=H or an alkali metal or alkaline earth metal or ammonium cation).   <IMAGE> wherein n=1-3; and X=H, an alkali metal, alkaline earth metal or ammonium cation.
Patent GB-2034160-A (GB)
Title: Electrical connector assembly
IPC: H05B3/84
Filed: 1979-09-26
Abstract: An electrical connector assembly includes an elongate resilient synthetic resin channel member 14 for attachment to a vehicle window, the channel member 14 having therein a longitudinally extending channel 14a, and an elongate electrically conductive part 17 arranged to be received as a snap fit in said channel 14a whereby one or more conductive heating elements 12 can be trapped between said part 17 and the wall 16 of said channel in electrical connection with said part 17, the channel member 14 having a surface 22 which supports said part 17 within the channel 14a in a position spaced above the base 21 of the channel. The support surface may project laterally from wall 16 or may be provided by part circular recesses in the opposed surfaces of walls 16. <IMAGE>
Patent GB-2036820-A (GB)
Title: Patterned Fabric
IPC: D04B1/14
Filed: 1979-11-06
Abstract: A method of producing a patterned textile material comprises the steps of knitting fabric which includes an elastomeric yarn and a composite yarn, both formed into knitted loops and comprising an integral part of a coherent fabric structure, and wherein the composite yarn comprises two different kinds of non-elastomeric yarn, and treating the fabric in selected areas to remove one of the kinds of non-elastomeric yarn therefrom, for example by a burnt-out printing process, to produce the desired pattern in the finished fabric.
Patent GB-2036143-A (GB)
Title: A rail clip, for holding down a railway rail, and apparatus for making such a clip
IPC: B21D53/36
Filed: 1979-11-29
Abstract: A rail clip, for holding down a railway rail, is made by bending a metal rod so that it comprises a substantially straight leg (1), at one end of which is one end (A) of the rod, the other end of the leg being joined to a part (3) on one side of the leg which is joined to a final part (5) on the other side of the leg, this final part terminating in the other end (B) of the rod. In order to control the height of the lowest point on the final part of the rod, and thus to make more uniform the forces which such clips exert on the rails, there is formed on the underside of the clip, near said other end (B), a step (9, 6, 8 or 9, 5D, 5A) which has a depth no more than 2 mm. or no more than 1 DIVIDED 4 of the thickness of the rod before it was bent. Apparatus for performing a second bending operation on a rod, which in a first bending operation has been given the shape indicated above but without the step, has support surfaces (40, 75, 56, 47) for supporting various parts of the bent rod and two shaping tools (80, 43) between which the final part of the rod is distorted to give its final shape, including the step. <IMAGE>
Patent GB-2037466-A (GB)
Title: Computer with cache memory
IPC: G06F12/0817
Filed: 1979-12-05
Abstract: A processor has a cache store 26, of 512 locations each including 4 levels each of which stores 1 block, each level of each location having a respective full/empty flip- flop associated with it in control logic 38. A primary directory has 512 columns each of 4 levels to store the section addresses of the blocks in the cache store 26 - each section of main memory contains 512 blocks. An absolute address of section address + block address within the section has its block address used to look up the 4 section addresses in the corresponding column of the directory; a match with the absolute section address indicates the required block is in cache and identifies its level. A duplicate directory 52 duplicates the contents of primary directory 32. Writes from other sources have their addresses checked against the duplicate directory. If there is a match, the corresponding full/empty flip-flop associated with the primary directory and cache is cleared, so that the block which has been changed by the write is effectively removed from the cache system. <IMAGE>
Patent GB-2041169-A (GB)
Title: Pilot-operated valve having varying bleed flow area
IPC: F16K31/40
Filed: 1979-12-11
Abstract: A valve has a valve body (10) formed with an internal orifice (14) between the valve inlet and outlet ports and a main valve member (42) for opening and closing the orifice (14). A chamber (26) above the valve member (21) is supplied with high pressure fluid through a bleed passageway (58) extending between the chamber (26) and the inlet port. A pilot valve (29) controls exhausting of the chamber (26) when the main valve is to be opened. The bleed passageway has a cross-sectional area which changes progressively along its length such that its flow area is smallest when the main valve is closed and largest when the main valve is open. The bleed passageway may be in the annular surface which guides the movement of the main valve member or in the cylindrical outer surface of the main valve member. The bleed passageway may be tapered either radially or axially with respect to the surface in which it is formed. <IMAGE>
Patent GB-2038674-A (GB)
Title: Rotary percussive tool
IPC: E21B6/04
Filed: 1979-12-19
Abstract: A rotary percussive tool, comprising a casing 1 has a drive with a drive gear 11, a bushing 12 having a non- round hole 13 for insertion of a shank of a boring tool 7 and a protective clutch 22, 23 mounted thereon and meshing with the drive gear to limit torque on the boring tool. The tool has a driven gear 15 which is mounted on the bushing 12 for independent rotation and meshes with the drive gear 11. The driven gear has a hole 20 for insertion of a drilling tool, and provides drilling tool rotation without torque limiting. The boring tool shank 14 is engaged by a reciprocating member 5 actuated by a piston 3. A tool for impelling only has a round shank to avoid rotation with the sleeve 12. <IMAGE>
Patent GB-2041405-A (GB)
Title: Improved invar alloy
IPC: C22C38/08
Filed: 1980-01-25
Abstract: An alloy with a low thermal coefficient of expansion which comprises (by weight) 34.5-37.5% Ni, up to 0.1% C, up to 1.0% Si, up up to 1.2% Mn, up to 0.025% P, up to 0.025% S, up to 0.05% Co, up to 0.5% Cr, up to 0.5% Mo, and up to 0.02% Al, the balance being Fe wherein the Mn content is 0.5-1.2% when either the S content or the Al content is more than 0.005%, is non-sensitive to stress corrosion cracking and high temperature cracking, is structurally very stable and maintains a low thermal expansion coefficient in the temperature range from room temperature to the temperature of liquefied natural gas i.e. - 162 DEG C
Patent GB-2046966-A (GB)
Title: Electronic typewriter with means for positioning the typing member
IPC: B41J5/08
Filed: 1980-02-08
Abstract: The keyboard of an electronic typewriter with a daisywheel print unit on a carriage includes a CENTER key and REPEAT key. With the print unit positioned where an insertion is to be made in a line being set up blind, these keys are actuated and the character(s) to be inserted are typed in. The usable area for typing is continually shown on a two-digit display device. When RETURN (NEW LINE) or INDEX (new line without line feed) or TAB is then depressed, the line is printed with the inserted character(s) centered in the space available, with compression of the gaps at the left and right ends of the space, and the gaps between words, if necessary. Provision is also made for centering of a table to be printed, display of number of line spacings still possible (altered when line space pitch is changed), and non-volatile storage of tab stops and margins.
Patent GB-2037469-A (GB)
Title: Safety device for use with a railway signalling interlock arrangement
IPC: B61L7/08
Filed: 1979-02-13
Abstract: A safety device (1, 31) for use with a railway signalling interlock arrangement is provided with two instruction receivers (3a, b; 33a, b) each for receiving from a central interlock unit (6) one instruction which instructions have the same meaning but may have different forms, and switching in common to enable selected settings of a group of settings of a device (2, 32) for controlling the railway traffic to be made, e.g., the settings of a signal light in which the green signal lamps (2a, b) are illuminated. The safety device comprises means (8a, b; 38a, b) for bringing about the switching, and a further third instruction receiver (3c, 33c) for controlling switches (20a, b; 48a, b) for setting the device (2, 32) for controlling railway traffic in a specific one of the enabled settings, e.g., the illumination of two green signal lamps (2a, b). The safety device (1, 31) is further provided with sensing means (11-18; 50-53) for transmission to means (5) in the central interlock unit (6) of information relating to the kind of initiated setting. Each of the two first mentioned instruction receivers (3a, b; 33a, b) is arranged to revert to a disconnected state and thus inhibit the initiated setting upon receipt by anyone of them of instructions to that effect from the said means (5), which is arranged to deliver such instructions when it is established that the initiated setting is incorrect.
Patent GB-2046626-A (GB)
Title: Polyester support for use in photography
IPC: B05D5/00
Filed: 1980-03-03
Abstract: A polyester support for use in photography is provided, on at least one surface thereof with a layer containing a copolymer which comprises   a) 60 to 90% by weight of at least one monomer selected from glycidyl methacrylate and glycidyl acrylate (first component), b) 10 to 40% by weight of at least one diolefin monomer (second component), and   c) 0 to 30% by weight of a vinyl monomer (third component).   The presence of the copolymer layer leads to improved adhesion of photosensitive emulsion layers to the support and a reduced tendency to "edge stripping".
Patent GB-2046116-A (GB)
Title: Bar screen cleaner
IPC: E02B8/02
Filed: 1980-03-14
Abstract: A screen cleaner for a bar screen has at least one cleaning carriage 5, 8 for ascending and descending a bar screen in a respective guide 1 on the bar screen and arranged parallel to the bar screen. A cleaning rake 12 is articulated to the carriage by two guide arms 10 and 20 pivotally mounted at a distance from each other. One of the guide arms 10 is shorter than the other 20 and is designed to have a greater pivoting angle than the longer guide arm whereby the rake is brought into a steeply inclined discharge position between its cleaning position and its return position, the discharge position lying outside the plane of the bar screen. In Fig. 1 the rake tips forwards to drop solids on to chute 3'. <IMAGE>
Patent GB-2058825-A (GB)
Title: Treatment of paraffin-bearing crude oils
IPC: C10G73/38
Filed: 1980-06-30
Abstract: The separation of paraffins in paraffin-bearing crude oils, especially in the extraction and transport of mineral oil, can be prevented or substantially reduced by incorporating, typically in concentrations of from 20 to 1000 ppm, crystallisation inhibitors which consist of or contain copolymer of n-alkyl acrylates of the general formula   <IMAGE>  and dialkylaminoalkyl acrylates of the general formula   <IMAGE> in which  R1 represents a hydrogen or methyl R2 represents an n-alkyl radical having at least 16 carbon atoms, R3 and R4, which may be the same or different, each represents a lower straight-chain or branched alkyl radical having from 1 to 8 carbon atoms, and X represents a straight-chain or branched alkylene radical having from 2 to 5 carbon atoms. Apart from the reducing the separation of paraffin, the crystallisation inhibitors, which may be used in solution or dispersion, bring about a marked depression of the pour point and retain their effectiveness even under the shear stress to which the crude oil is subjected during transport by pumps. The copolymers wherein R2 has at least 20 carbon atoms are claimed as novel products.
Patent GB-2079830-A (GB)
Title: Clamps
IPC: E04G7/26
Filed: 1980-07-08
Abstract: A clamping means (14, 14') for clamping a first member (10) to a second member (11) comprises a first element (17) adapted to be connected to or integral with the first member (10), and two second elements (15) engaged with the first element (17), one end of each second element providing a jaw (19) to clamp the second member (11) therebetween. In the first embodiment (Fig. 2) each second element (15) passes through an aperture (16) in element (17) and these second elements are located on a common pin (20). Pushing the second elements through the aperture (16) allows the jaws (19) to separate to release member (11). One pin (20) pivotally supports an arm (21) which can engage bolt (28) on the other pin (20') to clamp member (10). Lugs (32), (33) may be provided on arm (21') and bolt (28) respectively to hold the clamps (14, 14') closed around member (11) even when member 10 is absent in another embodiment (Fig. 6) element (17) is replaced by a housing (42) having one aperture (43) through which both second elements project. <IMAGE>
Patent GB-2057157-A (GB)
Title: Eyepiece for infra-red optical system
IPC: G02B25/00
Filed: 1980-07-24
Abstract: An "eye-piece" system, for an infrared afocal telescope, comprises a positive back element (7) having a concave or convex back surface and a convex front surface, and a pair of elements closely spaced to define a gas lens therebetween, the back element (6) of the pair having a convex back surface and the front element (5) of the pair having a concave front surface, the pair of elements in combination with the gas lens therebetween being of positive power. The "eye-piece" system can be used in combination with an objective lens system to provide a collimated magnified view of a scene or object, from which infra-red radiation is received, at a real exit pupil where a scanner operates, and can provide a wide field of view of around 70 degrees or more in the scanner space. <IMAGE>
Patent GB-2073842-A (GB)
Title: An Apparatus for Providing an Articulated Conduit Linkage
IPC: B63B22/02
Filed: 1980-08-01
Abstract: An apparatus for providing an articulated conduit linkage comprising: a first body 14 and a second body 10 joined together by an articulated joint 12 including a first pivot means 32 defining a first axis for rotational movement of the first body 14 and second body 10 relative to each other, and a second pivot means 12 for angular movement of the second body 10 relative to the first body 14 about a second axis perpendicular to the first axis; a first conduit 18 extending through the first pivot means and through at least part of the first body 14, the said first conduit 18 having a first swivel 43 positioned for rotation about the first axis; a second swivel 48 positioned for rotation about the second axis; a portion of the first conduit 18 extending from the first swivel 43 to the second swivel 48. The apparatus is suitable for providing a conduit linkage between an offshore column 10 and a base 14 on the sea bottom. The apparatus may also be used for electrical cables. <IMAGE>
Patent GB-2057795-A (GB)
Title: Improvements in or relating to operating circuits for electric discharge lamps
IPC: H05B41/04
Filed: 1980-08-07
Abstract: An operating circuit for a low pressure sodium vapour lamp or a cold cathode fluorescent lamp comprising a tapped choke whose winding is divided into two small coils L1, L3 and a main larger coil L2 includes a booster with a semiconductor switch Tr1 controlled by the condition of the lamp. The booster circuit includes a capacitor C2 which forms an oscillatory circuit with inductive components, such as the coil L3, and generates lamp striking voltages under the control of the semi-conductor switch Tr1. The switch Tr1 is controlled by the lamp voltage, or in other examples by the lamp current, through a control circuit which introduces a delaying phase shift when the lamp is running up to ensure that the energy of the oscillatory lamp striking voltage is available at the time required in each half cycle of lamp operation. <IMAGE>
Patent GB-2065341-A (GB)
Title: Electronic equipment with voice output
IPC: G10L13/00
Filed: 1980-11-06
Abstract: The equipment, e.g. a calculator, selectively outputs data in any one of a plurality of different voices. The available voices stored may include a male voice, a female voice, and a child's voice. Positive, negative numbers and time values may be voiced. <IMAGE>
Patent GB-2072181-A (GB)
Title: Herbicidal 2-Haloacetanilides
IPC: C07C231/00
Filed: 1981-03-18
Abstract: A group of N- hydrocarbyloxymethyl-2- haloacetanilide compounds, herbicidal compositions containing said compounds as the active ingredient and herbicidal method of use in various crops, particularly, corn and soybeans and other crops including cotton, peanuts, rape, bush beans, wheat and sorghum. The herbicides herein are particularly effective against hard-to-kill perennial weeds such as quackgrass and nutsedges and are also effective against annual weeds.
Patent GB-2097237-A (GB)
Title: Fish beheading apparatus
IPC: A22C25/08
Filed: 1981-04-23
Abstract: Apparatus for mechanical beheading of fish comprises a conveyor (1) in which fish lying on their sides are conveyed transversely, and a beheading device (6) for beheading the fish by means of a wedge cut. The beheading device (6) is mounted to be pivotable about a pivot axis (9) extending parallel to the plane of the troughs and contains two mutually inclined circular knives (7) so that an exact cut in the plane of symmetry of the fish can be effected independently of the size of the fish to be processed. The pivoting of the device (6) is controlled automatically by a pair of centrally synchronised feeler rails (10) which are mounted on a housing (8) carrying the knives (7) of the device (6), the rails and thus the knives being urged apart by the fish depending on the fish thickness. <IMAGE>
Patent GB-2098560-A (GB)
Title: Mooring a tug to a vessel
IPC: B63B35/70
Filed: 1981-04-30
Abstract: The mooring between a tug 12 and a vessel 11 comprises a link mechanism (13 or 14) which can pivot about a substantially horizontal axis (X or Y) fixed relative to the structure and allows the tug to pivot about an axis spaced from the axis (X or Y), which comprises flexible resilient coupling means (17, 18 or 23, 24) which allow limited relative movement of the two axes. <IMAGE>
Patent GB-2103995-A (GB)
Title: Method of edging sheet materials
Inventor: SPARKS WILFRED
IPC: B29C48/08
Filed: 1981-08-15
Abstract: A carpet or wall covering sheet material is edged to prevent deterioration of the edges. The edging is affected by laying the sheet material 11 over a backing sheet 12, applying a frame 14 to the upper surface 13 of the sheet material 11 and fusing the frame 14, the sheet material 11 and the backing sheet 12 together. Fusion may be by high frequency induction welding or by extrusion of the frame 14 in situ on the sheet material 11, and at the same time ribs 36 may be formed on the frame 14. The backing sheet 12 and frame 14 are of a thermoplastics material such as P.V.C. <IMAGE>
Patent GB-2104357-A (GB)
Title: Conductive silicone rubber heater
Inventor: CHI-CHUN TANG
IPC: H05B3/14
Filed: 1981-08-22
Abstract: A conductive elastomer heating element is produced by applying an insulating adhesive 15 on an insulating substrate 11; placing a pair of electrodes 13, 14 thereon; applying conductive silicone rubber 12, applying a further layer of said insulating adhesive 15 thereto to provide more effective bonding between the conductive silicone rubber 12 and electrodes 13, 14; heating said formed laminate of substrate and conductive silicone rubber for curing; and heat sealing to furnish a tight bonding therebetween. <IMAGE>
Patent GB-2106756-A (GB)
Title: Remote control system using a radio link
Inventor: SIMPSON RONALD REID SELBIE
IPC: G08C19/12
Filed: 1981-09-09
Abstract: A motor 9 is controlled by a manually- operable controller 1 via a radio link 3,5. The radio link uses a separate frequency for each of a predetermined number of motor speeds. The frequencies used are sufficiently low that the link operates on an inductance effect with a maximum range of a fraction of a wavelength. <IMAGE>
Patent GB-2109314-A (GB)
Title: Canopy structure for a vehicle
Inventor: O'BRIEN STEPHEN
IPC: E04B1/343
Filed: 1981-11-10
Abstract: The canopy can be erected at the side or end of the vehicle e.g. horsebox, caravan or public utility service vehicle from a roof panel (10) and preferably end panels (11,12). The panels are hingedly connected to the vehicle side for movement between stowed positions adjacent the vehicle side and operative positions extending for outwardly from the side. Movement of Service the roof panel may be guided by rollers on the panel running in channel members secured to the vehicle side. The roof panel may take the form of a tubular aluminium frame to which is laced a plastics coated fabric sheet. <IMAGE>
Patent GB-2092099-A (GB)
Title: A hoisting apparatus for use in a confined space and including a cantilevered telescopic boom
IPC: B66C23/94
Filed: 1981-12-04
Abstract: Hoisting apparatus, more particularly for use in a nuclear power plant to avoid moving suspended loads through the space above the reactor tank (2), comprises, mounted on a stationary structure (5) of said plant, a crane (7) having a telescopic boom (8) and three security systems, respectively an orientation security system (SSO) for forbidding a determined angular range  theta  in angular lateral displacement when the boom reach is greater than Pm, a boom raising security system (LRF) limiting the raised position of the boom to a predetermined level, and a load state control (CEC) for insuring a permanent control with automatic cut-off for the boom in dependence of its extension length and of the lifted loads. Said security systems may be selectively inhibited. All the manoeuvring and indicating means are grouped on a transportable remote control operator console. <IMAGE>