baber/WOPTO huggingface dataset:
Patent GB-2023325-A (GB)
Title: Improvements in or relating to magneto-resistive magnetic transducers
IPC: G11B20/14
Filed: 1979-06-06
Abstract: A magneto-resistive transducer element MRH1 is biassed by a periodic bidirectional magnetic field HS, and non-coincidence between a minimum in the element resistance and a zero in the bias field indicates presence of an external field HT. A ramp bias field HS (Fig. 2) is produced by digital to analogue conversion of the output of a clock pulse counter CTR. Peak detector DET1 and error counter EC1 provide peak value clamp PCL with a signal indicative of the time interval (St. Fig. 3) between the start of a biassing period and occurrence of a resistance minimum, this signal being a square wave (Fig. 4) synchronised with the bias field HS and having a mark/space ratio dependent on the magnitude and direction of field HT. For double frequency coding recording, two MR elements MRH1, MRH2 are spaced by the bit length, and a decoder DCD gives a "1" or "0" depending on whether the mark/space ratio of the waveforms in PCL from the two elements are the same or different, respectively. The bias amplitude may be varied from a large search amplitude to a small measuring amplitude with a d.c. bias to centralise the latter on the minimum found in the search mode. A feed back loop (Fig. 6) may adjust the bias to keep the long term position of the resistance minimum constant. <IMAGE>
Patent GB-2033311-A (GB)
Title: Improvements in or relating to pneumatic tires
IPC: B60C15/06
Filed: 1979-08-07
Abstract: This invention relates to pneumatic tires for use in conjunction with wheel rims 10 having flanges 13 that are spaced apart transversely by a distance less than the width G of the tire, said tire being of the kind having a radial carcass 14 and a tread belt and comprising beads 17 spaced apart axially which each comprise a wire 19 around which the edges of the, carcass are folded over from the inside towards the outside. According to the invention the tire has a low profile in which the ratio between the height and the width does not exceed 0.8, said beads 17 include, situated axially outside the wires, interposed sections 23 whereof the thickness is such that said wires 19 are spaced apart from the flanges 13 of said rim 10 and mutually spaced apart, axial distance d being between 0.5 and 0.6 G, and the angle of inclination A of said carcass 14 in the low portion of the sides being smaller than 50 DEG . <IMAGE>
Patent GB-2029413-A (GB)
Title: Preparation of organic mono- and polyisocyanates
IPC: C07C263/06
Filed: 1979-08-24
Abstract: A process for the preparation of organic mono- and polyisocyanates is described, in which a hydrogen chloride adduct of a trisubstituted urea is thermally decomposed to form the isocyanate. The hydrogen chloride adduct at minimum contains the stoichiometric amount of HCl, and at maximum a 10 mole-% excess. The process is carried out in a closed system at a temperature between about 80 DEG  and 180 DEG  C.; the reaction is effected either in a melt or in the presence of an inert organic solvent.
Patent GB-2034692-A (GB)
Title: New cephem compounds and processes for preparation thereof
IPC: C07D277/20
Filed: 1979-09-07
Abstract: Compounds of the formula:   <IMAGE>  wherein  R<1> is amino or protected amino,  R<2> is halogen, lower alkyl, lower alkoxy or lower alkylthio,  R<3> is hydrogen or lower alkyl,  R<4> is hydrogen, lower alkyl or lower alkoxy, R<5> is hydrogen, halogen, lower alkyl, lower alkoxy, hydroxymethyl, acyloxymethyl or heterocyclicthiomethyl in which the heterocyclic moiety may be substituted with lower alkyl or lower alkenyl, and R<6> is carboxy or functionally modified carboxy, and their pharmaceutically acceptable salts and pharmaceutically acceptable bioprecursors thereof have antimicrobial activity. The carboxylic acids (and salts and esters thereof) used in acylating the corresponding 7- amino cephalosporins, in order to produce the new cephems, are also described.
Patent GB-2031824-A (GB)
Title: Crawler vehicle construction
IPC: B62D55/08
Filed: 1979-09-25
Abstract: The crawler side frame assemblies of a tracked vehicle each comprise a central member 40 to which is releasably secured two modular end members 38, 46. The central member 40 is integral with the support frame of the vehicle and carries track rollers 44a-d which receive a substantial portion of the design load of the vehicle. End members 38 and 46 carry a drive sprocket 34 and an idler roller 48 respectively. First and second bogies 60,70 each having two track rollers 62a,b are pivotally connected to the ends of the central member 40 and carry the remaining portion of the design load. <IMAGE>
Patent GB-2035230-A (GB)
Title: Run-flat pneumatic tyre
IPC: B60C9/00
Filed: 1979-11-13
Abstract: A pneumatic safety tire with a pair of annular rubber reinforcements having crescent sectional shape and applied to a tire carcass at tire sidewalls, the rubber of the reinforcements having a JIS hardness of not less than 70, a tensile stress (Mod25) after an aging test of not less than 10 kg/cm2, and a repulsive elasticity by Dunlop tripsometer of not less than 65%.
Patent GB-2037177-A (GB)
Title: Zeolitic cracking catalysts
IPC: C10G11/04
Filed: 1979-11-27
Abstract: Zeolitic catalysts for the cracking of hydrocarbon oils contain small quantities of heavy metal(s), 0.01-2.5% by weight of boron and 0.01-2.5% by weight of tin. Application: Production of motor fuels.
Patent GB-2038262-A (GB)
Title: Securing device for a sail wishbone
IPC: B63B35/79
Filed: 1979-12-19
Abstract: A device 11 to be used in securing the sail wishbone of a sail board to the mast of the said board. Spaced sockets 12, 13 receive the free ends 6 of the wishbone, the sockets being spaced so that the device can abut against the mast between the socket openings, with or without the interpolation of a resilient pad. A hook 18 protrudes from an initially upper face, to be engaged by a looped holding element secured about the mast. The device is then rotated by 180 DEG about a horizontal axis to engage the holding loop about the end of the device remote from the sockets, whereby the device is held against the mast by the holding loop. The loop may be resiliently extensible, or may be non-extensible when the resilient pad is provided. <IMAGE>
Patent GB-2039480-A (GB)
Title: Prostaglandins
IPC: C07C405/00
Filed: 1980-01-04
Abstract: Novel bicyclo [2,2,1] heptanes and hept-2-enes are substituted at the 5-position by a 6-carboxyhex-2-enyl group or a modification thereof, and at the 6-position by a grouping -C(R)=N-NCHO-(NH)a-R' in which R is hydrogen, an aliphatic hydrocarbon residue, an aromatic residue or an aliphatic hydrocarbon residue substituted by an aromatic residue, a is 0 or 1 and R' is an aliphatic hydrocarbon residue, an aromatic residue, or an aliphatic hydrocarbon residue substituted directly or through an oxygen or sulphur atom by an aromatic residue. The compounds are of value for use in pharmaceutical compositions particularly in the context of the inhibition of thromboxane activity.
Patent GB-2041654-A (GB)
Title: A snap-action electric switch
IPC: H01H13/36
Filed: 1980-01-09
Abstract: A snap-action electric switch comprising an actuating lever 1 and a contact lever 2 arranged side-by-side and a snap-acting spring 3 connected to both levers has two stationary support, 56 spaced apart from each other laterally with respect to the levers, and the actuating lever 1 and the contact lever 2 are interconnected by a spring strip 4 at their ends remote from the snap spring 3, the strip 4 being so mounted on the supports 5,6 that a point moving from one end of the strip to the other passes round the supports in opposite senses, the spring strip 4 being urged against the supports by the snap spring 3 and an abutment member 31 or an actuator F. <IMAGE>
Patent GB-2042018-A (GB)
Title: Improvements in or relating to aircraft servicing arrangements
IPC: E04H6/44
Filed: 1980-01-22
Abstract: An aircraft servicing arrangement comprises a static building structure 10 having port and starboard wing portions 11, 12 each with a chord dimension C substantially less than the span dimension S, for example by a factor of five. A nose servicing bay 13 can be moved to and fro, telescopic wind servicing bays 14 can be moved on rails 17 over the wings of an aircraft when the latter is in position, and mobile tail servicing bays 15 can then be brought into position, using rails 18. The bays may have floors at various levels and access to engine, wings and fuselage is by portable staging. Single-storey reception, stores and workshops 20 may be provided. One form of the arrangement can service four aircraft at a time. <IMAGE>
Patent GB-2041468-A (GB)
Title: Improvements in gearboxes
IPC: F16H61/30
Filed: 1980-02-07
Abstract: A double-acting working cylinder for changing the ratio in a two-ratio gearbox in series with a four-ratio gearbox is controlled by a valve with two motor ports (41, 42) and inlet and exhaust ports (40, 45). Movement of a selector cam (3) from a neutral position (C) to a position (D) causes motor port (42) to be pressurised to establish low ratio, and movement of the cam to position (B) causes port (41) to be pressurised for high ratio. Further operation of the cam after low or high ratio has been established, i.e. to the range (E) or (A) selects ratios in the four-ratio gearbox. A coupling (10) between cam follower 9 and valve stem 8 is automatically released when the cam is in the range (E) or (A), allowing the valving parts to be returned to neutral by springs. Thus, rapid movement of the cam from (C) to (E) or (A) not allowing sufficient time at position (D) or (B) for low of high ratio to be established results in the two-speed gearbox being placed in neutral. <IMAGE>
Patent GB-2049414-A (GB)
Title: Quilts
IPC: A47G9/02
Filed: 1980-03-11
Abstract: A quilted article (1) for covering beds comprises two separate parts (2, 3) of which one (2) is a quilted part effective to cover the bed with the exception of the pillows, and the other (3) is a small covering quilt effective to cover the pillows and harmonising with the first quilted part (2), this latter having a stratified structure at least in a central zone (4) thereof. <IMAGE>
Patent GB-2049431-A (GB)
Title: Measuring device
IPC: A61B10/00
Filed: 1980-04-02
Abstract: The invention provides a device (Figure 1) for measuring the degree of a subjective opinion, preference or response comprising a bar (1) on one side of which is an unmarked line (5) having at near one end an indication that this respective end of line represents one extreme view-point (e.g. "no pain") and at or near the other end thereof an opposite extreme view-point (e.g. "intense pain"), the side of the bar opposing the unmarked line being provided with an identical line marked with a scale to enable a range of view-points between the extremes to be rated (e.g. on a scale of 0 to 10), and a marker (3) movable along the bar to enable a person to provide an estimate of his opinion, preference or response along the unmarked line and to enable an observer to read the corresponding rating from the opposed marked line. <IMAGE>
Patent GB-2051504-A (GB)
Title: Multi-conductor flat cable connector
IPC: H01R12/67
Filed: 1980-06-03
Abstract: A multi conductor flat cable connector having a base (10) carrying insulation stripping contact elements (11), a cover (12) and a pair of metal latching legs (14) retained on the cover. The base has cover guides (19) at its ends which slidably mate with the ends of the cover and the latching legs latch the cover to the base in an open position to accept the flat cable and a closed position where conductors of the cable are connected by the contact elements. A pair of shearable latch stops (25), one at each end of the base, are contacted by portions of the latching legs when the connector is in an open position to hold the connector in the open position. The latch stops are sheared by the latching legs as the base and cover are forced together to connect a flat cable between them. <IMAGE>
Patent GB-2056720-A (GB)
Title: Control valve
IPC: F15B21/042
Filed: 1980-08-08
Abstract: A control valve for maintaining the viscosity or the temperature of the fluid in an hydraulic installation constant comprises a pilot valve (34) which is influenced by a temperature sensitive expansible element (37). The pilot valve (34) controls a valve member (29) which, together with the pilot valve, brings the temperature of the pressure medium to the desired value by throttling. The pilot valve is connected in series with the main valve member, and the expansible element (37) is arranged in the pilot valve. The expansible element controls a bypass connection from the inlet to the load which can be, for example, a shaft lubrication device (24). The expansible element moves a control pin (42) out of a bore (45) in the pilot valve member to provide a pressure drop to move the pilot valve member towards its seat (32). <IMAGE>
Patent GB-2063078-A (GB)
Title: Jig-saw puzzles
IPC: A63F9/10
Filed: 1980-09-18
Abstract: To enable pieces 14, Figure 2, to be assembled on a board 10, Figure 1, in their correct order to make a picture, the back of the sheet 13 on which the pieces 14 are removably mounted carries the same markings as the board 10 but in the correct order to make the picture. Alternatively, the sheet beneath each piece or the pieces themselves may be marked. The markings on the pieces or sheet may be in the form of questions, so that the associated piece has to be positioned on the appropriate answer on the board 10. The pieces may be of jig-saw shape and have pegs to fit into sockets on the board. Redundant pieces may also be provided. <IMAGE>
Patent GB-2084889-A (GB)
Title: Method and apparatus for separating water and oil
IPC: B01D17/04
Filed: 1980-10-09
Abstract: Water is separated from oil (or vice versa) by passing the oil (water) through a vertical or inclined laminated panel (18) comprising an inner supporting layer (24) and two outer layers (26, 28) of oil (water) permeable material bonded to opposite surfaces, respectively, of the inner layer, the supporting layer having a structural configuration whereby channels are formed between it and the permeable material. The water (oil) is separated from the oil (water) by a coalescing action of the upstream layer (26) and the water (oil) is removed from the lower (upper) end of the inner supporting layer (24). As shown water drains from opening (30) to float-valve controlled outlet (16). If oil is the dispersed phase, it rises up layer (24) and is removed by a rotating slit tube. <IMAGE>
Patent GB-2085713-A (GB)
Title: Windscreen-Wiper/drive assemblies
IPC: B60S1/12
Filed: 1980-10-24
Abstract: A windscreen-wiper/drive assembly comprises a wiper arm 7 mounted on a slide block 10 which is slidable laterally of the windscreen 4, a guide positioned adjacent the bottom edge of the screen 4, and power-operated driving means for reciprocating the block laterally of the windscreen. The latter may comprise an endless belt 1 looped around pulleys 2, 3, and connected to block 10 by a cranked coupling arm 11, pulley 3 being driven by motor 5. Alternatively, the block may be driven by passage of air or other fluid into a plastics tube which is nipped between rollers, as shown in Fig. 2. <IMAGE>
Patent GB-2089054-A (GB)
Title: Photographic colour process
IPC: G03C7/18
Filed: 1980-12-09
Abstract: The invention provides a photographic colour image which is masked to improve the sharpness thereof by the addition of edge effects. The main impression of sharpness comes from a luminance variation at the edge of the image. In the invention desirable effects are obtained by superposing a sharp retained dye image upon its complementary unsharp dye image of opposite sense obtained by diffusion transfer. In particular there is provided a photographic element comprising a support and containing a colour image and a mask therefor which produces edge effects and whereof a first component is a diffusion transfer image formed of a masking dye of neutral or degraded colour and whereof a second component is a sharp retained image formed of said masking dye and of the same sign as said colour image.
Patent GB-2070596-A (GB)
Title: Carbacyclin Analogues
IPC: C07C233/10
Filed: 1981-01-30
Abstract: Novel compounds of the formulae   <IMAGE> wherein R15 is hydrogen or fluoro; R16 is hydrogen and R17 is hydrogen or C1-4 alkyl or R16 and R17 taken together represent methylene (with the proviso that when R15, R16 and R17 are all hydrogen, then Z1 contains a phenylene moiety); and n, I1, R7, R8, R20, R21, R22, R23, R24, X1, Y1 and Z1 are substituents standard in the prostaglandin art have prostacyclin- like activity, e.g. as platelet aggregation inhibitors.
Patent GB-2095135-A (GB)
Title: Production of wiring harnesses
IPC: B21F27/02
Filed: 1981-03-25
Abstract: A wiring loom comprises three superposed sheets of which the upper is a resilient mesh 11, an intermediate layer 9 is a steel wire mesh and of which a lower layer 6 is adapted to resiliently hold the lower heads 16 of shouldered pins 13 which are inserted into the loom table from above to a depth determined by the intermediate layer. A wiring harness is made by injecting the leading part of each wire into the upper mesh layer so that it is temporarily anchored, winding the wire around a start pin 13a so as to provide a temporary but more secure anchorage, and laying the wire along a path defined by pairs of pins, preferably at a height defined by collars 18 disposed on selected pins. The end of each wire may be wound around a respective final pin 13d. After taping together the wires the upper layer is separated from the intermediate layer to release the harness from the loom. At the end of harness production the upper and intermediate layers may be separated so as to remove the pins from the table. <IMAGE>
Patent GB-2074745-A (GB)
Title: Developer for developing latent electostatic images
IPC: G03G9/08
Filed: 1981-04-09
Abstract: A developer for developing latent electrostatic images and particularly for use in copying apparatus employing the magnetic brush principle comprises a mixture of (a) magnetic toner particles having a high electrical resistivity (e.g. having a volume resistivity of 10<12> ohm.cm or more) and (b) electrically conductive magnetic particles (e.g. having a volume resistivity of 10<9> ohm.cm or less) having an average particle size less than that of the magnetic toner particles, suitably from one-fifth to four-fifths that of the magnetic toner particles. The developer may also contain finely powdered materials which are such as can be triboelectrically charged to that of a latent electrostatic image to be developed when brought into contact with a development sleeve of a magnet brush type copying apparatus. The electrically conductive material may be formed of coagulated sub-particles. The developer suitably contains from 98 to 60% by weight of the magnetic toner particles and from 2 to 4% by weight of the electrically conductive magnetic particles.
Patent GB-2096726-A (GB)
Title: Hose with braided wire reinforcement
IPC: F16L11/08
Filed: 1981-04-13
Abstract: A hydraulic hose having a single ply of braided reinforcement over a rubber core tube. The single ply of reinforcement provides burst strength, impulse resistance and flexibility comparable to that of a conventional hose having two plies of braided reinforcement yet utilizes less wire by weight and is smaller in O.D. The single ply of reinforcement comprises braided steel or plastics strands, each strand including a plurality of wires of at least two different diameters symmetrically arranged and providing about 75-95% coverage of the core tube. <IMAGE>
Patent GB-2083492-A (GB)
Title: Production of pitch from petroleum fractions
IPC: C10C3/00
Filed: 1981-04-28
Abstract: A continuous process for the production of pitch comprises subjecting a residue 2 obtained by cracking a petroleum fraction to two successive thermal ageing treatments in which the first thermal ageing treatment is carried out in a first reactor (1) at a pressure greater than atmospheric pressure whilst maintaining a substantial temperature difference between the hot part and the cooler part of the reactor (1) and the second thermal ageing treatment is carried out in a second reactor (15) at a pressure lower than the pressure in the first reactor (1) and at a temperature lower than or equal to the temperature in the first reactor (1) whilst maintaining a substantial temperature difference between the hot part and the cooler part of the second reactor (15). <IMAGE>
Patent GB-2084251-A (GB)
Title: Damping vibrations of a compressor in an exhaust-gas turbocharger
IPC: F04D29/42
Filed: 1981-07-16
Abstract: In order to damp undesirable mechanical vibrations produced by a compressor incorporated in an exhaust-gas turbocharger, which vibrations are conducted through the compressor's housing 18, at least one separating ring 22 is arranged in the compressor housing's rear wall 20 concentrically or eccentrically to rotor shaft 11, which separating ring 22 divides the rear wall 20 into a central disc 20.1 and an outer ring 20.2 and is made of a material having good vibration damping properties, e.g. a heat resistant rubber or plastics material. Alternatively two or more separating rings can be arranged on the rear wall, each either concentrically or eccentrically to the rotor shaft 11. <IMAGE>
Patent GB-2088233-A (GB)
Title: Method and Apparatus for Draining of Granulated Blast- furnace Slag
IPC: C21B3/08
Filed: 1978-11-01
Abstract: A mixture of granulated blast furnace slag and water, formed by the injection of water into liquid slag, is fed to vessel (104) and the granulated slag is lifted and drained by a plurality of perforated bowls (106) positioned on a scoop wheel (101) and dropped on to a conveyor (108). Water, contaminated by fine solids, overflows from vessel (104) and is fed to settling vessel (103) which has a possibly tangential inlet to central chamber (121), radial and peripheral overflow channels leading to outlet (130), from which water is recycled to the granulation process, and a solids- collecting sump (118). Fine solids plus some water are pumped from sump (118) to nozzles (133) so that the solids are retained by the coarser slag particles in bowls (106). When the wheel (101) is not running, the solids are recycled to chamber (121). Settling tank (130) may replace lines (132, 136). <IMAGE>
Patent GB-2091455-A (GB)
Title: A method of controlling and regulating operational parameters of a machine for continuously casting bands between cylinders allowing adhesion to be avoided
IPC: B22D11/16
Filed: 1982-01-15
Abstract: The present invention relates to a method of controlling and regulating operational parameters of a machine for continuously casting bands between cylinders, allowing adhesion to be avoided. This method comprises considering as parameters the torque exerted on one or other of the cylinders for moving the band on and comprises permanently comparing the frequency of the variations in the torque measurement with a reference frequency. When the variation frequency is greater than the reference frequency, the casting speed of the machine is reduced and/or the lubricant flow rate is increased until the variation frequency is again lower than the reference frequency. The speed of the casting machine is then increased as long as the variation frequency remains below the reference frequency.
Patent GB-2097313-A (GB)
Title: Drive-in apparatus for fasteners
IPC: B25C7/00
Filed: 1982-03-09
Abstract: In order to secure a structural member 33 accurately to a workpiece 30 by means of a fastener, drive-in apparatus for fasteners is provided with an additional detachable element 20 whose underside is level with the fastener exit opening 12 and which fits against a nose-like projection 13 of the main apparatus with an adjacent depression 23 to accommodate the member 33. <IMAGE>