baber/WOPTO huggingface dataset:
Patent GB-1218450-A (GB)
Title: Auxiliary composition for steel-making furnaces
IPC: C21C5/32
Filed: 1968-12-10
Abstract: 1,218,450. Oxygen-steelmaking. KAISER INDUSTRIES CORP. Dec. 10, 1968 [Dec. 26, 1967], No. 58680/68. Heading C7D. A composition suitable for charging to an oxygen-steelmaking furnace, whereby the proportion of scrap in the charge may be increased, consists of a mixture of 5 - 95% by weight of silicon carbide with 95 - 5% of calcium carbide, the mixture either being in a suitable container, such as steel or aluminium, or being compacted. Preferably the calcium carbide is of a size to pass “" mesh while the silicon carbide passes ¢" up to 35% of powdered metallic alluminium may be added to the carbides, while minor amounts of iron ore, millscale, fluorspar or bauxite may also be present, the combined amount of these and any aluminium powder not exceeding 35% of the composition. To compact the carbides they may be incorporated with 2 to 20% by weight of the total mix of a water-resistant hydrocarbon such as tar or pitch.
Patent GB-1281200-A (GB)
Title: An improved two-part fastener
IPC: E05B65/50
Filed: 1969-12-03
Abstract: 1281200 Latches A RAYMOND 3 Dec 1969 [3 Dec 1968] 59020/69 Heading E2A A fastener comprises two parts of which one part comprises a flanged element 1 with a pair of side tongues 14 and the other part, which comprises a saddle 2 and a stem reversely bent to lie beneath the saddle, is inserted in the element 1 between the tongues 14 so that a lug 25 on the stem projecting through a recess in one edge of the saddle abuts a lip on the element 1 to retain the two parts together. The parts are released by depressing a protuberance 26 at the end of the stem and withdrawing the stem from the element 1. The parts are secured to a support by a pair of claws 3 on each element or by screws or the like passing through apertures in flanges on the elements.
Patent GB-1282808-A (GB)
Title: Apparatus for creating duplex reproductions by electrophotography
IPC: G03G15/16
Filed: 1970-12-21
Abstract: 1282808 Electro-photography XEROX CORP 21 Dec 1970 [24 Dec 1969] 60526/70 Heading G2H Right and wrong reading images are transferred from spaced positions on a single photoconductive surface on to opposite sides of a receiver sheet, one image being transferred directly and the other indirectly via a transfer surface. As shown, the apparatus comprises a drum 1 having a photo-conductive surface, charging device 2, exposure device 3 capable of alternately projecting right and wrong reading images, dry development device 4 and transfer belt 5 of dielectric material. Transfer on to opposite sides of a sheet 9 from drum 1 and belt 5 is effected by means of corotrons 6 and 11 resp. Fixing is then effected by heat.
Patent GB-664380-A (GB)
IPC: H01R13/17
Abstract: 664,380. Electric welding. PHILIPS ELECTRICAL, Ltd. Dec. 14, 1949 [Dec. 17, 1948], No. 32064/49. Class 83 (iv). [Also in Group XXXVI] A tubular sheath 3 is secured around an electric plug pin 1 (see Group XXXVI) apertured at 9 by current passed between an electrode 17 and the cooperating welding electrode 13 which has insulated flanks 15 which engage the turned-in edges 11 of the sheath.
Patent GB-2000088-A (GB)
Title: Tyre chains
IPC: B60C27/08
Filed: 1978-06-15
Abstract: A tyre chain has a tread network with links (1) extending parallel to the tread surface connected to links (2) extending perpendicular to such surface. In order to give a long working life for the tyre chain, pairs of cleats (3) are secured to the perpendicular links (2). These cleats (3) act as wear members in that they project beyond the associated links (2) so as to engage the ground surface in use. <IMAGE>
Patent GB-2001612-A (GB)
Title: Leaching nickeliferous ores
IPC: C25C1/08
Filed: 1978-07-18
Abstract: Water-soluble alkali metal or ammonium compounds are added to slurries of nickeliferous oxide ores which are acid leached e.g. with sulfuric acid at temperatures between about 230 DEG  and about 300 DEG C. The alkali metal or ammonium compound additions improve the handling characteristics of the slurry, nickel recoveries, settling rates and compaction rates and lower scaling rates.
Patent GB-2026664-A (GB)
Title: Apparatus for Removing Heat from Cylinders of a Planetary Cooler
IPC: F27B7/40
Filed: 1978-07-27
Abstract: An apparatus for removing heat from cylinders 3 of a planetary cooler 2 comprises heat-exchange tubes 6 mounted between lateral surfaces of arched support members 7 and arranged along a wave-like path around the cooler so that the space a between the heat-exchange tubes 6 and the cylinders 3 varies around the cooler. Heat removing elements 10 are pivotally mounted on the heat exchange tubes 6 and are arranged to contact the cylinders 3 as they are rotated about the cooler axis.   <IMAGE>
Patent GB-2003833-A (GB)
Title: Tape cassette
IPC: G11B23/087
Filed: 1978-09-08
Abstract: A compact cassette with pivotally mounted levers (5) for guiding magnetic tapes 4 designed to be wound and unwound on hubs 9 is provided with means, for example (15, 16), located in the region of the pivot of each lever for limiting the deflection of the lever toward the central transverse axis of the cassette. <IMAGE>
Patent GB-2007661-A (GB)
Title: Monoalkylaniline derivatives
IPC: C07C233/16
Filed: 1978-09-20
Abstract: There are provided novel monoalkylanilines which have properties indicating utility as hypolipidemic and anti- atheroscherotic agents.   The compounds have the formula:   <IMAGE> wherein R1 is a straight chain or branched alkyl group of the formula CnH2n+1 wherein n is an integer from 8 to 19 inclusive; R2 is hydrogen or a group convertable in vivo thereinto and A is a specified substituent including amidated or esterified carboxy.
Patent GB-2008007-A (GB)
Title: Soaking partly solidified castings
IPC: C21D9/70
Filed: 1978-10-12
Abstract: Non-heating soaking of a partly solidified ingot of rimmed or semi- killed steel is carried out by covering the stripped hot steel ingot with insulator for recuperation, and extracting the steel ingot from the insulating cover when 95% or higher of the ingot has solidified.
Patent GB-2009063-A (GB)
Title: Thrust Reversers
IPC: F02K1/56
Filed: 1978-10-17
Abstract: The downstream portions 32, 34 of a ducted fan, gas turbine engine 10 are translatable to open respective gaps and allow the lateral egress of exhaust gas and fan air. The fan air outlet 26 is upstream of the exhaust gas outlet 38 and the translatable fan cowl portion 32 and gas turbine engine casing 16a cooperate to reduce the fan annulus on translation. Exhaust gas passing laterally through outlet 38 enters any annular space remaining between casing 16a and cowl 32 and prevents the passage of fan air in a downstream direction. <IMAGE>
Patent GB-2015084-A (GB)
Title: Rotary Positive-Displacement Fluid-Machines
IPC: F04C18/344
Filed: 1979-02-23
Abstract: A sliding-vane pump, which may be a vacuum pump, has a rotor (5) provided with a vane(s) (9) and rotates about an axis (16) in a housing bore. The or each vane has an extension (15) located on the other side of the axis (16). When the required positive or negative delivery pressure has been attained the vane(s) (9) is withdrawn from the bore wall (6) by a surface (28) of an element (27) movable transversely of the axis (16) by e.g. a rod (19) connected to a delivery- pressure controlled actuating unit, Fig. 1 (not shown). The pump is thereby rendered inoperative. The centre of gravity of each vane is situated such that it moves to the other side of the axis (16) when the vane is withdrawn from the bore wall. <IMAGE>
Patent GB-2016473-A (GB)
Title: Cellulosic ion-exchange fibres
IPC: D06M13/184
Filed: 1979-03-06
Abstract: A cellulosic ion-exchange fibre which may be used in the form of filter paper and which can selectively retain heavy metal ions has the following group chemically bonded thereto   <IMAGE> wherein n and m, which may be the same or different, but are preferably the same, are 1 or 2. Alternatively, salts of this group may be used. The ion- exchange fibre may be produced by contacting a cellulosic fibre with an aqueous solution containing a compound of formula   <IMAGE> in which X is a leaving group such as a halogen, in the presence of an alkali and then subjecting the result to a heat treatment.
Patent GB-2018955-A (GB)
Title: Valves
IPC: F16K5/20
Filed: 1979-04-11
Abstract: A plug valve includes a pair of annular valve seats 14 mounted in a tapered hole 11 in a valve body 10, each seat 14 being flanked by stops 27 which prevent sliding of the seats in a direction transversely of the flow path and perpendicular to the axis of rotation of the plug 13. A control spindle, attached to the plug and screw threaded into the valve body 10, is operated to impart to the plug in rotary action with a simultaneous slight axial displacement. The seats 14 are free to move with the plug in the direction of axial displacement. The stops 27 are shown as bolts but may be constructed by projections as parallel guides. <IMAGE>
Patent GB-2018844-A (GB)
Title: Dispersions of optical brighteners
IPC: C09B67/02
Filed: 1979-04-18
Abstract: Aqueous dispersions of water- insoluble or sparingly soluble optical brighteners containing from 4 to 20% by weight of one or more brighteners and from 10 to 50% by weight of one or more non-ionic dispersing agents of the general formula 1   <IMAGE> in which n is an integer of from 2 to 10, m represents a number of from 125 to 3,100, and R is the radical of a polyoxy- (C3-C6)-alkylene, a polyoxy-(C3-C6)- alkylated polyvalent alcohol, a polyoxy- (C3-C6)-alkylated C2-C10-alkylene diamine or of a novolak of the general formula   <IMAGE> in which R1 is hydrogen or C1-C9-alkyl, and Y is an integer of from 1 to 9, with the proviso that the molecular weight of the radical R is in the range of from 1,000 to 10,000. The dispersing agents are made by treating various polyoxy compounds or novolaks with ethylene oxide according to known methods. The dispersions may also contain various additives and give enhanced brightness when applied to synthetic textile fibres, particularly in the pad-thermo-soling process.
Patent GB-2019328-A (GB)
Title: Cycle free wheel hubs
IPC: B62M9/10
Filed: 1979-04-19
Abstract: To avoid the need for a special removal tool to detach a free wheel from a cycle wheel hub (18), a boss (8) of the free wheel is secured to the hub by interengaging splines and grooves (14, 16) on the boss and hub which extend parallel, or are inclined, to the rotational axis X-X. Centering is obtained by engaging a shouldered portion (221) of a wheel axle (22) in the inner race of a ball bearing assembly (21) of the free wheel, with a nut (23) being provided to prevent lateral disengagement. <IMAGE>
Patent GB-2020881-A (GB)
Title: Articulated Magnetic- transducer Support-arm
IPC: G11B5/55
Filed: 1979-05-10
Abstract: A transducer support-arm (for use in a multiple flexible-disk file) comprises a base portion 22 and a tip portion 26 which are interconnected by leaf springs 36 and 38. The relative lengths of the base portion 22 and the tip portion 26 and their respective shapes are chosen so as to maximise the resonant frequency of the arm. A loop-shaped guard portion 24 is secured to the base portion 22 and surrounds the tip portion 26; the edge of guard portion is tapered so that if the arm tries to access a closed pack of disks or if the pack of disks attempts to close while the transducer is in the file, damage to the pack is minimised. A leaf spring 62 mounted on the tip portion rubs against a ramp 60 on the base portion to damp relative movement. The transducer is attached to the tip of the arm by screws 85, 86. <IMAGE>
Patent GB-2022874-A (GB)
Title: Automatic Azimuth Correction of Magnetic Head Gaps
IPC: G11B5/56
Filed: 1979-05-25
Abstract: A method of, and apparatus for, detecting an angular deviation of an audio reproducing head and producing a signal for correcting the head position if required. In order to avoid the need to provide one or more additional tracks containing identical signals for use in detecting head deviation the upper and lower halves of an information track are scanned simultaneously and the time difference between the zero passages of the signals is determined and is used to derive a signal for the compensation of the angular error. <IMAGE>
Patent GB-2023363-A (GB)
Title: Channel selection device for a tuner
IPC: H03J5/02
Filed: 1979-06-01
Abstract: A keyboard operated channel selecting device for a tuner is operable in two channel selection modes. In the "direct mode", the user enters a two digit code on a keyboard T which directly sets the channel number to be received. In the indirect mode, the user enters a single digit code which is used to address a memory location in which a corresponding two digit code is stored. Logic gates 101, 103, 104 and 106 are arranged to change the state of a flip-flop 1, which defines which of the two operating modes is selected, each time one of the digit keys of the keyboard T is operated. A monostable 102 switches the state of the flip-flop 1 from the indirect to the direct mode if more than one digit is entered via the keyboard within a given interval of time. The remainder of the channel selecting device may be as disclosed in P. Belisomi's article "TV channel selector and frequency synthesis" in 1976 n. 4 issue of "Elettronica a Telecomunicazioni" magazine pages 155-160 in specification No. GB 1538294. <IMAGE>
Patent GB-2029713-A (GB)
Title: Spinning toys
IPC: A63H1/30
Filed: 1979-07-05
Abstract: A toy has a ball or similar projectile (10) which may be thrown and then retrieved by a hand-held line (14). The line (14) winds on a reel (22), as in a yo-yo. The reel (22) is connected to the ball (10) by a torsion spring (34) which winds up as the ball (10) is thrown and then unwinds, reeling in the line (14) and returning the ball (10) to the hand. <IMAGE>
Patent GB-2035298-A (GB)
Title: Preparation of  beta -lactam compounds
IPC: C07D503/00
Filed: 1979-08-31
Abstract: A process for the preparation of an ester of 9-mercaptodeoxyclavulanic acid comprises the reaction of potassium trithiocarbonate with the corresponding ester of a compound of the formula (I):   <IMAGE> wherein X is a readily displaceable moiety.n
Patent GB-2032180-A (GB)
Title: Circuit-interrupters
IPC: H01H33/16
Filed: 1979-09-10
Abstract: A circuit-interrupter having a shunting capacitance 32 electrically paralleling the separable power contacts 14, 16 of the main power interrupter has in series with the capacitance 32 a disconnecting switch 33 which interrupts the residual capacitance current after the interruption of the main-power current in the main interrupting unit.   <IMAGE>
Patent GB-2047682-A (GB)
Title: 3-carbamoyloxymethyl- cephalosporins
IPC: C07D501/04
Filed: 1979-09-20
Abstract: A process for the preparation of a 3-carbamoyloxymethyl cephalosporin compound which comprises hydrolysing a 3-phosphonocarbamoyloxymethyl methyl cephalosporin compound. The hydrolysis is preferably effected at a pH in the range of pH3 to 4, for example using aqueous sodium hydrogen carbonate.
Patent GB-2060735-A (GB)
Title: Improvements in diamond drill bits for drilling bore holes in earth formations
IPC: E21B10/04
Filed: 1979-10-16
Abstract: A diamond drill bit has a body (10) connectible to a drilling string, and provided with a matrix portion (15) of hard metal in which diamonds (20, 32) are surface set at the outer gage portion and adjacent to the bit axis, the hard metal matrix having preformed grooves (21, 50, 51, 52) in which preformed diamond impregnated cutters (37, 42) are inserted, which are a mixture of diamonds and hard metal, the cutters being secured to the matrix portion by brazing material. During bit rotation in the bore hole, the cutters cut the major portion of the hole, the diamonds being dispersed throughout the mass of each cutter for selective release from the cutter as the diamonds become damaged and lost, thereby exposing new diamonds in the cutter at a controlled rate, and thereby producing continual resharpening of the cutters. As a result, the drilling rate of the bit is increased, as well as the length of hole drilled. The cutters may be replaced as required at the relatively low temperature required to melt the brazing material. This readily achieved without damage to the remainder of the bit. <IMAGE>
Patent GB-2044730-A (GB)
Title: Valve bags
IPC: B65D30/24
Filed: 1980-02-27
Abstract: A valve bag (not shown) has a valve tube (4) of thin, flexible plastics foil, seamed (at 3, 7, 8) for use in filling the bag, and provided with a sheet-form insert (2) of stiffer material than that of the valve tube, to rest on top of the filling tube. The insert (2), which is preferably of high density, cross-laminated, double foil polyethylene, prevents the valve tube sticking to the filling tube and turning inside out when the filled bag is pulled off the filling tube, and improves the valve sealing under the weight of the bag contents. <IMAGE>
Patent GB-2045433-A (GB)
Title: A wall mounting arrangement suitable for a thermometer
IPC: G01K1/14
Filed: 1980-03-07
Abstract: An arrangement for mounting, for example a thermometer, in the wall 20 of a vessel or conduit intended to contain in use a fluid, comprises a sleeve 5 of a deformable material e.g. rubber, introduced into the vessel through an opening 19 which is of similar cross-section to the sleeve and having a flange 6 limiting the extent of entry into the vessel, and a hollow screw-threaded tube 1 extending through the sleeve and held therein and carrying screw-threading 3 at a portion 10 thereof which lies outside the vessel. A nut 11 co-operates with the screw threading so that when tightened it acts to withdraw the screw-threaded means out of the opening thereby compressing the sleeve 5 against a region of the wall surrounding the opening 19 to hold the wall mounting arrangement within the vessel. A terminal box 16 is mounted on the portion 10. <IMAGE>
Patent GB-2071600-A (GB)
Title: Container-cutting device
IPC: B67B7/46
Filed: 1980-03-19
Abstract: A device for cutting open the ends 3 of sealed containers comprises a ring cutter 5 which is formed with a plurality of angularly spaced apart cutting teeth. The teeth are arranged in three sets of three with the sets staggered in height so that, in cutting, the teeth of the different sets successively pierce the container and effect a clean cut without jagged edges. The severed end 3 is retained in the cutter 5 until ejected by a pin 7. <IMAGE>
Patent GB-2056503-A (GB)
Title: Porous metal films
IPC: H01G9/04
Filed: 1980-08-08
Abstract: A process for preparing porous high surface over metal films e.g. for electrolytic capacitor manufacture. A valve metal, e.g. aluminium, is evaporated in a vacuum chamber from a vapour source 25, the vapour being directed towards a substrate foil 21, drawn past the source. The deposition angle is chosen such that the evaporated metal condenses as a porous surface layer. The coated foil may be used in the manufacture of electrolytic capacitors by anodising the coating, applying contacts, and winding up the foil. <IMAGE>
Patent GB-2064139-A (GB)
Title: Engine analysers
IPC: H01T13/60
Filed: 1980-11-20
Abstract: An engine analyser including a plurality of probes each adapted to derive an input signal for the analyser from a different spark plug of the engine or lead feeding that spark plug, in which one or more probes will emit a succession of pulses during use, some or all of the pulses being of either one polarity or of the opposite polarity and including means to process said pulses and to emit coincident pulses all of the same predetermined polarity, irrespective of the polarity of the pulses from the probe.
Patent GB-2089552-A (GB)
Title: Record Player Sub-chassis
IPC: G11B33/08
Filed: 1980-11-25
Abstract: A record player turntable 10 and a pick-up 9 are supported on a sub- chassis 13 resiliently mounted on a main chassis 1 so as to isolate the turntable and pick-up arm from high frequency vibrations. The degree of isolation of the turntable and pick-up from the aforesaid vibrations is improved by forming the sub-chassis 13 from cellular material, which is of lower density than the material of the turntable 10. The use of a cellular low density material enables the required rigidity to be attained whilst keeping the mass as small as possible thereby achieving a high centre of gravity. A high centre of gravity is believed to reduce any tendency for the stylus to jump as a result of movements of the sub-chassis. Furthermore, the use of cellular material acts in the absorption of acoustic energy. <IMAGE>
Patent GB-2089670-A (GB)
Title: Separating oil and water
IPC: B01D17/02
Filed: 1980-12-19
Abstract: Oil and water skimmed from the sea after an oil spill is delivered downwards through a trapping layer of oil 109 which retains the oil. The oil/water mixture is pumped through manifold 81 to a plurality of annular traps 12 each comprising concentric tubes 13, 15 and 17. Substantially clean water leaves the lower chamber 8 through an adjustable weir assembly and separated oil enters upper chamber 11 over weirs 18, 20 and 28. <IMAGE>
Patent GB-2071546-A (GB)
Title: Metallic containers
IPC: B65D8/04
Filed: 1981-02-26
Abstract: A flat metal blank is drawn into cup having a cylindrical side wall, with an open end surrounded by a radially extending external flange, and with an opposite end at least partially closed by an end wall. The side wall is then ironed without disturbing the as- drawn condition of the flange and the adjoining section of the side wall. A closure element is then applied to the open end of the side wall by deforming both the flange and the periphery of the closure element. <IMAGE>
Patent GB-2073693-A (GB)
Title: Silo and pneumatic conveyor for bulk material
IPC: B65D88/72
Filed: 1981-04-14
Abstract: A silo for bulk material in which a cover defines at least one de-aerated space constituting a conveyor area accessible to the material to be conveyed, with at least one pneumatic conveyor chute extending at least partially in the conveyor area and toward an outlet opening, and an air-draining area above the conveyor area and beneath the cover, separated from the conveyor area by a partition that is permeable to air and checks the passage of the material.
Patent GB-2079329-A (GB)
Title: Knotters
IPC: A01F15/14
Filed: 1981-06-26
Abstract: A knotter comprises a twine holder (63) operable to hold, during a knot-tying operation, a primary portion and a secondary portion of twine in which a knot is to be tied; a first stationary twine guide (112) disposed at a distance from the twine holder (63); a twine carrying needle movable back and forth to place the primary and secondary portions of twine against the twine guide and in the twine holder, the holder (63) in turn being operable to grip and hold the twine portions; and a rotatable billhook (66) rotatable through a first and a second cycle in a plane extending between the guide (112) and the holder (63), the path of the billhook intersecting the twine portions. The billhook is operable during its first cycle to push the twine portions off the twine guide to reposition them in preparation for the knot, and operable during the second cycle to tie the knot in the twine portions. <IMAGE>
Patent GB-2079400-A (GB)
Title: Suspension or damping unit
IPC: F16F1/40
Filed: 1981-07-06
Abstract: A suspension/damping unit comprises a tubular member 1, closed at one end 2, a compression member 7 slidably secured within the tubular member 1, a guide bar 4 located within the tubular member 1, and a number of separate compressible members 5 slidably mounted on the guide bar 4 between the compression member 7 and the closed end 2 of the tubular member 1. The compressible members 5 are rubber spheres with bearing members 6. They are a close sliding fit within the tube 1 which is coated with anti-friction material. The unit may be combined with a pneumatic damper 10,12. <IMAGE>