baber/WOPTO huggingface dataset:
Patent GB-1182540-A (GB)
Title: Method of Making Semiconductor Device
IPC: H01L29/00
Filed: 1968-08-06
Abstract: 1,182,540. Semi-conductor devices. MATSUSHITA ELECTRONICS CORP. 6 Aug., 1968 [17 Aug., 1967], No. 37378/68. Heading H1K. [Also in Division C7] A method of making a semi-conductor device having a Schottky barrier comprises the steps of disposing a molybdenum disc 1 and a silicon substrate 2 face to face in a low-pressure inert gas, applying a high-tension voltage between an anode 7 provided near and around the periphery of the silicon substrate and a cathode electrode formed by the molybdenum disc to induce a glow discharge in the gas, and so forming a molybdenum film on the silicon surface by sputtering. The silicon substrate 2 is maintained at a temperature of from 100‹ to 250‹ C. during the process by heater 6, and the potential of the substrate is held at a negative voltage of from 0 to - 20 volts with respect to the anode which is at earth potential. The pressure of the inert gas is maintained at from 1 Î 10<SP>-2</SP> to 7 Î 10<SP>-2</SP> Torr, and a potential of from - 1 to - 6 kv. is applied between the anode 7 and the molybdenum disc 1. The separation between the disc and the substrate is arranged to be between 20 and 60 mm. Germanium or gallium arsenide may also be used as the substrate and tungsten, niobium, tantalum or vanadium may be used in place of molybdenum. A diode made by the method is described.
Patent GB-1394989-A (GB)
Title: Removal of mercury from aqueous solutions by treatment with  carbon
IPC: C01G13/00
Filed: 1971-08-10
Abstract: 1394989 Removing mercury from aqueous liquids BP CHEMICALS INTERNATIONAL Ltd 1 Aug 1972 [10 Aug 1971] 37435/71 Heading C1A In removing mercury ions from an aqueous medium containing them, the aqueous medium is contacted with an absorbent carbon which has been washed with an aqueous alkaline solution of a metal sulphide, and the used absorbent is regenerated by washing with a stoichiometric excess based on the mercury content of an aqueous alkaline solution of a metal sulphide (giving [HgS 2 ]<SP>2-</SP> in solution) and the mercury is thereafter recovered from the metal sulphide solution. The metal sulphide solution used to produce the active carbon is preferably a water soluble metal sulphide, e.g. an alkali metal sulphide, such solution having a normality of 0À05 to 3 normal. The active carbon may be treated in a column in the present process. The aqueous medium containing the mercury may have a pH in the range 7-12. The same metal sulphide solution may be used for the treatment and regeneration steps. The aqueous medium containing mercury ions may be a depleted brine from an electrolytic cell. Any elemental mercury present is first converted into an ionic form.
Patent GB-919430-A (GB)
Title: An infinitely variable speed change gear
IPC: F16H15/04
Filed: 1961-10-20
Abstract: 919,430. Variable speed gearing. KASHIHARA, M. Oct. 20, 1961 [Nov. 4, 1960; Nov. 24, 1960], No. 37804/61. Class 80 (2). A variable speed gear comprises a pair of wheels 10, 15 contacted by a large ball 13 engaged by a group of small balls 18 in a circular race 21, the large ball rotating about an axis passing through the centre of the ball and of the race, means being provided to change the position of the race to vary the radii of the large ball relative to the wheels. The ball race is arranged within a concave portion of a sector gear 20 meshing with a rack 19 rigid with a ring 24 movable axially to effect tilting of the ball axis. A plurality of large balls may be employed and they may engage with cones, discs or other balls. Two variable speed gears according to the invention may be combined in series. In another embodiment, Fig. 6, a disc 40 is fixed to the casing, the ring 42 carrying the balls and the disc 41 being connected to the input and output shafts.
Patent GB-953685-A (GB)
Title: Flexible couplings
IPC: F16D3/78
Filed: 1962-10-05
Abstract: 953,685. Shaft couplings; machining guards. LUXEMBOURGEOISE DE BREVETS & DE PARTICIPATIONS. Oct. 5, 1962 [Oct. 6, 1961], No. 37850/62. Headings F2J and F2U. Two coaxial shafts A, B are coupled by at least one resilient disc 1 secured by bolts 3 to flanges 4, 5 on the shaft ends, the flanges having bosses 8 on the facing surfaces of the flanges in the area of the holes for the bolts. At places other than the bosses 8, the flanges are recessed to clear the nuts 14 of opposite bolts and the nuts 21 securing the flanges to the shaft ends, thus allowing ready removal of the resilient disc 1, holes 18 in the flanges allowing access to the nuts 14. The flanges have external rims 20 acting as guards for the bolts.
Patent GB-1308227-A (GB)
Title: Plastic fins for archery arrows
IPC: F42B6/06
Filed: 1970-08-06
Abstract: 1308227 Archery arrows B R BENGTSSON 6 Aug 1970 [7 Aug 1969] 37913/70 Heading A6S The edge surface of a guide fin 2, to be secured to an arrow shank 1, is shaped like a rib-like foot extending laterally to both sides of fin 2 and having narrowly spaced notches 4 to provide a penetration of glue therethrough and a partial or total embedding of foot portions 5 between said notches 4. The foot portions 5 may be shaped narrowing from their outer extremity towards the fin 2 as seen in plan view.
Patent GB-1344086-A (GB)
Title: Wet fixation of resins in fibre systems for durable press products
IPC: D06M101/00
Filed: 1971-08-12
Abstract: 1344086 Crease-proofing textiles COTTON INC 12 Aug 1971 [19 Jan 1971] 37920/71 Addition to 1248840 Heading D1P The process of the parent specification 1248840 is modified in that the wet fixation step is carried out using an extraneous dry heat source, which may comprise infrared lamps, a high frequency electric source or a set of steam heated, rotating dry cans. The moisture content of the material which must be not less than 20% during the wet fixation step may be maintained by constructing the heating zone or chamber so as to reduce air circulation and hence evaporation.
Patent GB-945669-A (GB)
Title: Self-locking threaded fastener
Inventor: ANTHONY JAY D
IPC: F16B33/06
Filed: 1962-10-08
Abstract: 945,669. Locking nuts and bolts. SCREW & BOLT CORPORATION OF AMERICA. Oct. 8, 1962, No. 37971/62. Heading F2H. A screw - threaded member, male or female has a side portion of its threaded surface coated with a compound 12 such as an epoxy resin (or crude rubber in benzol) and another side portion of the threaded surface coated with a hardening agent 13 such as a polyamide resin (or a mixture of sulphur and a catalyst or accelerator, such as diphenylguanidine), so that when the member is rotated in threaded engagement with its mating member, the coating materials 12, 13 are mixed to form an adhesive polymer and the members are locked. The materials may be applied as two stripes applied simultaneously on opposite sides of the threaded surface by extrusion. A strippable protective coating, e.g. of vinyl or rubber, may then be applied by dipping, to protect the compounds 12, 13 before the member is used. The compounds, before mating the members, fill the thread to a depth greater than the clearance between the mated threads.
Patent GB-326881-A (GB)
Title: Front wheel drive systems for motor vehicles
IPC: B60K17/30
Filed: 1928-12-24
Abstract: 326,881. Guy, S. S. Dec. 24, 1928. Driving steering-wheels.-In motor vehicles in which the front wheels are driven by means of longitudinal shafts a from the ends of a transverse shaft c, the transverse shaft is driven from the gear-box d by an intermediate shaft j parallel with and driven by the main shaft of the gearbox. The shaft j carries a bevel gear l driving a differential gear on the shaft c and is driven by means of a. sliding gear wheel k normally meshing with an idle wheel i gearing with a wheel g on the main gear shaft d<1>. The front wheel drive may be disconnected by sliding the gear wheel k out of engagement with the wheel i.
Patent GB-1478297-A (GB)
Title: Control circuit for electric alternators
IPC: H02P9/30
Filed: 1974-08-08
Abstract: 1478297 Dynamo-electric machines CONTROLOGY TECHNIQUES Ltd 8 Aug 1974 [10 Aug 1973] 38071/73 Heading H2A [Also in Division G3] A voltage regulator for an alternator comprises a field winding excitation control circuit connected, in use, across the alternator output and including a full-wave rectifier 18 arranged to supply D.C. to the alternator field winding, and a voltage sensor 12 and cross-over detector 15 connected, in use, across the alternator output, the cross-over detector controlling a pulse generator 14 which provides an output control signal for each half-cycle of alternator output voltage, the output of voltage sensor 12 being fed to a current comparator 13 which controls the mark to space ratio of the output signals of generator 14, these signals being fed to a drive circuit 16 which controls a current control circuit 17 controlling the D.C. fed by the rectifier 18 to the field winding. The current control circuit 17 may comprise a triac, as shown, or thyristors. The pulse generator 14 is a monostable multivibrator including NOR gates G3, G4. In a modification, Fig. 3 (not shown), the transformer T1 in the voltage sensor 12 is replaced by an RC network and the resistor R18 in the rectifier 18 is replaced by a flywheel diode (D21). In a further modification (not shown) the triac QT1 is omitted altogether and the diodes D8 and D9 in the rectifier 18 are replaced by thyristors.
Patent GB-822371-A (GB)
Title: Shuttle stop-motion having a spring-loaded buffer for weaving looms
IPC: D03D49/36
Filed: 1956-12-13
Abstract: 822,371. Shuttle stop-motions for looms. METAPIC SOC. ANON. HOLDING LUXEMBOURGEOISE. Dec. 13, 1956 [Dec. 17, 1955], No. 38081/56. Class 142(2)  In a shuttle stop-motion, the frog is spring loaded to reduce the impact of engagement between the dagger and the frog thereby permitting higher running speed in a fast-reed loom. The frog comprises a hollow casing 1, bushes 3, 4 sliding in end faces 5, 6 of the casing, a spindle 9, and a spring 13 engaging both the bushes and the end faces. Engagement of the dagger 17 with an element 2 on the casing moves the casing forward slightly and compresses the spring 13. A damping spring 16 is provided. At the moment that the loom "butts" the centre 18 of the crankpin, the centre 19 of the connecting rod, and the centre 20 of the bush of the dagget 17 all lie in a straight line.
Patent GB-1237820-A (GB)
Title: A high speed delta modulation system
Inventor: SHIMAMURA TADAO
IPC: H03M3/02
Filed: 1969-07-29
Abstract: 1,237,820. Delta modulation. NIPPON ELECTRIC CO. Ltd. 29 July, 1969 [6 Aug., 1968], No. 38090/69. Heading G4H. A series of N delta modulators connected so that each receives at its input the error signal from the subtractor of the previous modulator are sampled at a frequency #, the output pulses from the delta modulators being multiplexed on to a single lead so that the conversion is equivalent to a single delta modulator sampled at a frequency N#. As described N=2 the error signals from the subtractor 13 (Fig. 2) of the first modulator being fed to the subtracter 23 of the second modulator each positive or negative pulse (depending on the polarity of the subtractor outputs) from encoders 11, 21 being converted by multiplexer 31 into non-return to zero signals and multiplexed into first and second time slots respectively on an output lead 8. At the receiver the input signal to the subtractor 13 is reconstructed using a single integrator.
Patent GB-1246135-A (GB)
Title: Refractory composites
IPC: C04B35/532
Filed: 1968-08-09
Abstract: 1,246,135. Refractory compositions. UNION CARBIDE CORP. Aug. 9, 1968, No. 38159/68. Addition to 986, 179. Heading C7A. In a process for production of an impermeable, oxidation-resistant, machinable, refractory semi-alloyed composite, a mixture is prepared consisting of (a) finely divided graphite or coke, (b) a member of the group consisting of boron, boron carbide, boron silicide, germanium, silicon, silicon 2  carbide and silicon boride, and (c) HfO 2  or ZrO2; and the mixture is subjected in a non- oxidizing atmosphere to a temperature and pressure sufficient to graphitize material (a) and to melt materials (b) and (c). The mixture may also include a carbonaceous binder such as pitch. Suitable temperatures and pressures are at least 1, 700‹ C. and at least 2, 500 p.s.i.
Patent GB-1162370-A (GB)
Title: Improvements in or relating to Splicing Film or Tape
Inventor: VOCKENHUBER KARL
IPC: G03D15/04
Filed: 1966-08-25
Abstract: 1,162,370. Splicing films. K. VOCKENHUBER and R. HAUSER. Aug. 25, 1966, No. 38182/66. Heading G2C. A method of splicing two ends 17, 18 of films, tape or the like comprises the steps of at least doubling the butt end areas of the two ends by cutting the ends with a sawtooth, or meander shaped, blade 21; inserting adhesive in between the increased butt end areas; urging the ends into pressing engagement; and holding them there until the adhesive has set. The blade 21 is used to cut one end, and then turned in its plane to cut the other end, or alternatively a blade having two sets of saw teeth may be used. The ends 17, 18 are positioned on a platen 22 by means of their sprocket holes engaging teeth 25, 26 of members 23, 24 which are spring-urged together after adhesive has been inserted between the cut ends. An upper platen (29, Fig. 6, not shown) is then lowered so as to confine the adhesive to the space between the film ends. In another embodiment Figs. 7-14 (not shown), a bearing block (51) carrying a retractable cutting die (55) is pivotably mounted so as to allow of its movement into, and out of, engagement with two film ends on platens (44), (44<1>). The bearing block is raised to allow of insertion of the ends to be spliced; lowered so that the die can cut the film; raised to allow of insertion of adhesive, the two film ends first being brought together; lowered with die retracted; and raised again to allow of removal of the spliced ends. In a further embodiment Figs. 15-17 (not shown) two levers (120), (121) carrying a pressure member (130) and a cutting die (128) respectively, are pivotably mounted for independent movement into and out of engagement with film ends on platens (104), (113), which film ends are spring-urged together after cutting and insertion of adhesive. In a fourth embodiment Figs. 18, 19 (not shown), four film guides (152-155) are provided, film being cut in two of them and stuck together in the other two, a pressure die (161) being provided to hold the cut ends together until the adhesive has set. In a fifth embodiment Figs. 20-31 (not shown), the individual operations are performed automatically in sequence, an adhesive store and metering valve being provided for the application of adhesive.
Patent GB-1002109-A (GB)
Title: Method and apparatus for forming and collecting fibres of glass and like heat-softenable mineral materials
IPC: D04H1/72
Filed: 1962-10-09
Abstract: <PICT:1002109/C1/1> In the formation and collection of fibres of glass, or like heat-softenable mineral material, the molten glass is extended to primary filaments which are alternated by gaseous blasts to fibres, the fibres being directed into falling columns by the blasts through a hood, having substantially parallel side walls, to be collected as a mass on a foraminous surface forming the floor of the hood, a reduced pressure being provided below the floor to pack the fibres and remove blast gases, the entrance to the hood being restricted to an area smaller than the area of the floor of the hood to reduce the flow of air induced by the blast gases into the hood. A number of glass fibre forming units 17 receive a stream 18 of molten glass from the preheater 10 of a furnace 12, each unit 17 comprising a rotor 32 on a hollow shaft 30 driven by a motor in a housing 28 so that filaments of glass are projected through orifices in the wall 33 of the rotor 32 to be alternated by a gaseous blast from an annular orifice in a manifold 34 to form a hollow column 38 of glass fibres.  Each unit 17 is removably supported from I-beams 20 by rollers 24 on the housing 28 <PICT:1002109/C1/2> riding on bars 22.  Binder or adhesive applying nozzles 48 for application to the fibres in column 38 are supported from I-beams 20 by members 42 secured to a hollow sleeve 44 having a ring 46 which also supports the adhesive supply system 50, 52, 53.  The sleeve 44 and a metal guard 40 surrounding the column 38 tend to confine the fibres which fall freely into a hood 80 below which runs the upper flight 62 of a foraminous conveyer belt 58 with a suction chamber 68 disposed below the hood 80 to pack the mass 64 of fibres and remove the combustion gases.  The hood 80 comprises end plates 72, 73 with a sizing roll 75 at the exit end to compress the mass 64 of fibres to form a mat 78 which passes into a curing chamber 81 to cure the binder or adhesive. As shown, the lateral walls of the hood 80 are adjustable to vary the width of the mass 64 and each comprises a horizontally adjustable section 90, a pivoted section 88 held against the section 90 by a spring pressed, concavely curved baffle plate 142 pivoted to the inner end of a downwardly and inwardly extending plate 134, the plate 134 being rigidly secured to a horizontal supporting plate 82 to which the section 88 is pivoted at 86 and the two plates 134 acting to restrict the entrance to the hood 80.  The section 90 can be moved, by operation of a handle 101, from the position shown in Fig. 2 to the position 901 shown in dot-dash lines, the section 88 and baffle plate 142 being pressed by the spring 146 to the dot-dash positions 881 and 1421.  The movement of section 90 is through suitable gearing and threaded rods 96 and the operation is also effective to move a plate 116 below the conveyer flight 62 so that its inner edge 118 lies below the section 90.
Patent GB-921548-A (GB)
IPC: B60J3/02
Filed: 1959-11-11
Abstract: 921,548. Clamp fastenings. GEBRUDER HAPPICH G.m.b.H. Nov. 11, 1959 [Nov. 12, 1958], No. 38286/59. Class 44. A glare shield is pivotally mounted in a vehicle by a U-shaped clamp 5, Figs. 1, 3, which embraces, and is spot welded to, framework members 2, 3, 4 of the shield and carries a U- shaped spring nut and screw fastening means. The nut, which, with the clamp 5, may be applied to the shield for left- or right-hand mounting in the vehicle comprises opposed screw-engaging holes 16, 19, Fig. 4, the latter being formed with a female thread, and a cutaway crown surface 14 which engages a luglike projection 13 on the crown part 6<SP>1</SP> of the clamp 5. The screw 17 has a countersunk head engaging a socket 23 and when applied to the nut, which has stamped-out clamp engaging projecting lugs 21, 22, causes the latter to tightly embrace the clamp 5.
Patent GB-1123558-A (GB)
Title: Guide device for attachment to the wall of a building under construction
IPC: E04G21/18
Filed: 1966-08-26
Abstract: 1,123,558. Builder's guide. G. T. BLAKE. 1 Aug., 1967 [26 Aug., 1966], No. 38415/66. Heading E1S. A builder's guide for use in wall constructions comprises an arm I which is fixed to a channel-sectioned base 3 which in turn is arranged to straddle one course of brickwork, the orientation of the arm being altered by thumbscrews 4, 5 which act against the top of the course to render the arm truly vertical. The base is initially fixed loosely in position by thumbscrews 9 and projections 7, or alternatively by thumbscrews on each side, and when the arm is truly vertical the thumbscrews 9 are tightened up. The arm may be notched, or slides for bricklayers' lines may be provided thereon, or sliding cantilever arms which in turn carry horizontally adjustable slides. A level may be provided on the base, either with two tubes at right angles to each other, or in the form of a level with a single air bubble which can be centred within a central zone of a liquid-filled transparent housing.
Patent GB-1435547-A (GB)
Title: Quinacridone pigments
IPC: C09B67/52
Filed: 1973-08-14
Abstract: 1435547 Preparing quinacridone pigments SUN CHEMICAL CORP 14 Aug 1973 38439/73 Heading C4P Quinacridone in the α-phase are prepared by treating crude quinacridone with a mixture of 100 parts by weight aqueous sulphuric acid and 5 to 9 parts by weight of xylene sulphuric acid, the density of the mixture being 50 to 60 degrees BaumÚ, diluting the product with a water-miscible organic liquid and recovering the product. The water miscible organic liquids include methanol, ethanol, isopropanol ethylene glycol or diethylene glycol and aliphatic carboxylic acids, e.g. acetic acid.
Patent GB-1457937-A (GB)
Title: Joint between two members
IPC: F16B3/04
Filed: 1974-09-03
Abstract: 1457937 Joints formed by sliding interengagemerit; pipe joints F POWONDRA 3 Sept 1974 [27 Sept 1973] 38520/74 Headings F2M and F2G In a joint formed by sliding interengagement of two joint elements, e.g. a spigot and a socket, formed on two members, e.g. a bar 1 and a plate 2, Fig. 2, or on two pipe sections 1A, 2A, Fig. 5, annular grooves 3, 5 are formed in the respective sliding surfaces of the two elements and, in addition, a clearance 6 is left between these surfaces, the space between the members over the length of the sliding surfaces being filled, after assembly, with a granular material, e.g. a quantity of spherical balls 8, Fig. 4A, of metal, plastics or stone. The filling material preferably incorporates a settable resin or a cementatious additive. There may be additionally incorporated a filler, e.g. steel or rock powder, or a fibrous reinforcement, e.g. of silk, glass, steel or asbestos. In the case of a pipe joint, the material is introduced through a side aperture 12 and an annular resilient sealing ring 13 is provided.
Patent GB-893975-A (GB)
Title: New dyeing process
Inventor: DAWSON TIMOTHY LESLIE
Filed: 1959-11-13
Abstract: Natural or regenerated protein textiles are dyed with a water-soluble dyestuff, which contains at least one group -X-CH=CH2 wherein X represents a -SO2- or <FORM:0893975/IV (c)/1> group and R represents a hydrogen atom or a substituted or unsubstituted hydrocarbon radical, from an aqueous bath at a pH less than 7, the pH of the bath being subsequently raised by at least one unit of pH during the process.  The aqueous bath contains an acid or acid salt, e.g., sulphuric, acetic, formic or phosphoric acid or sodium dihydrogen phosphate and its pH is raised by addition of an alkali, an alkaline salt or a salt which becomes alkaline on heating, e.g., sodium or potassium hydroxide or carbonate, sodium bicarbonate, sodium acetate, sodium silicate, sodium trichloroacetate, trisodium phosphate disodium hydrogen phophate, barium hydroxide, and lithium hydroxide. Dyeing may be effected at temperatures up to or above 100 DEG C., and the dyebath may contain the usual adjuvants such as sodium sulphate, urea, and anionic or non-ionic lispersants.  Dyestuffs of the azo, nitro, anthraquinone and phthalocyanine series may be employed and many such dyestuffs are specified.  Specifications 712,037, 776,265, 787,986, 831,128 and 885,814 are referred to.
Patent GB-1424527-A (GB)
Title: Method and apparatus for imparting increased buoyancy to  submersible vessels
IPC: B63C7/10
Filed: 1972-08-18
Abstract: 1424527 Inflatable buoyancy collars for submersible craft DEFENCE SECRETARY OF STATE FOR 10 Aug 1973 [18 Aug 1972] 38599/72 Headings B7A and B7S [Also in Divisions E2 and F2] To facilitate surface recovery, a submersible craft 10 has an inflatable collar 42 stowed in a housing 14 on the periphery of the body, the bag being inflated from a high pressure gas source via an explosive stop valve operated by a switch, e.g. a pressure sensitive switch. A latch 16 normally covers the compartment 14 and has gas actuated hatch release units (see Division E2) which are operated when the stop valve opens. A net or straps 57 surrounds the collar to evenly distribute the load of the craft thereon and the collar 42 may have ribs on its surface to reduce the likelihood of rupture. The gas may be supplied to the collar via a pressure control valve (see Division F2) and the collar may include a pressure relief valve (see Division F2) to balance the ambient water pressure to that of the gas as the craft rises to the surface.