baber/WOPTO huggingface dataset:
Patent GB-1014778-A (GB)
Title: Process and apparatus for producing branched artificial filaments
Inventor: SCRAGG FREDERICK
IPC: D01D5/42
Filed: 1961-10-20
Abstract: 1,014,778. Producing branched artificial filaments. ERNEST SCRAGG & SONS Ltd. Oct. 19, 1962 [Oct. 20, 1961], No. 39675/62. Divided out of 37642/61. Heading B5B. A " branched " filament consisting of a continuous main or trunk portion and short branch portions extending at intervals from the trunk and integral therewith is made by extruding a synthetic organic thermoplastic linear polymeric material in the form of a tube having at least one spiral fin and subsequently slitting the tube along a line which is at an angle to the line of the fin or fins. The thusformed filament may be drawn. The spiral fin may be in the form of a multi-start helix and may be located on the external surface of the tube. As shown in Figs. 1 and 2, an apparatus for producing branched filaments as above comprises an extrusion head 11 into which the filament-forming material is fed under pressure through the inlet 12 and urged by a ram 13 towards an outlet 14 provided with a coaxial rotated ring 15 having a number of radially extending slits 16 in the periphery of its inner surface. A cylindrical core 17 is mounted concentrically in the aperture 14 and extends through to the outer face of the ring 15. The diameter of the core 17 is slightly less than that of the aperture 14 and the internal diameter of the ring 15 so that the clearance between the core 17 and the ring 15 constitutes an annular extrusion orifice through which the polymeric material is extruded to form a thin-walled tube 18 (Fig. 3) having circumferential and radially extending spiral fins 19. The tube may be slit longitudinally as it emerges from the die or after it has passed through a bath of a liquid coolant into a number of narrow strips constituting the branched filaments. Alternatively the extruded tube may be slit once, spread out to form a flat sheet and then slit into narrow strips in a direction which is at an angle with the spiral fins.
Patent GB-1191688-A (GB)
Title: Process for the Production of Polybutene-1 having improved Hardness
IPC: C08F10/14
Filed: 1967-08-30
Abstract: 1,191,688. Polybutene-1. CHEMISCHE WERKE HULS A.G. 30 Aug., 1967 [31 Aug., 1966], No. 39677/67. Heading C3P. In the polymerization of butene-1 by the low pressure method, the polymerization is carried out in the presence of an inert filler, which is added in an inert solvent together with catalyst components consisting of a reduced heavy metal compound and an organometallic halogen compound. The filler may be carbon black, a finely divided silicate, an oxide, a pigment or an active silicic acid of surface area 80 to 200 sq. m./gm. The filler is preferably added in an amount of 0À5 to 40% by weight based on the butene- 1. In batchwise polymerization, the addition may be made before or during polymerization, all at once or in individual portions; in continuous polymerization, the addition may be continuous or in frequent small portions. In the examples, butene-1 is polymerized using a catalyst system comprising hexane solutions of titanium trichloride and di-ethyl aluminium chloride, and using one of the following fillersactive acetylene black, pigment carbon black, printing ink carbon black, active silicic acid and titanium dioxide.
Patent GB-1501878-A (GB)
Title: Electroluminescent panel
IPC: H05B33/04
Filed: 1975-09-09
Abstract: 1501878 Electroluminescence THORN ELECTRICAL INDUSTRIES Ltd 9 Sept 1975 [12 Sept 1974] 39856/74 Heading C4S An electroluminescent panel has colour-changing moisture-indicating material 17 within a plastics material envelope 16. The indicating material may be applied as a layer, spot or spots, or stripe on either the back or front before encapsulation and may be a complex cobalt compound such as which can be precipitated from aqueous solutions of cobalt chloride and potassium cobalt cyanide and made into a suspension with an organic binder such as solution of hydroxy propyl cellulose in formdimethylamide and acetone. Encapsulation may be by a hot pressing treatment with temperatures as high as 250‹ C. and pressures of 500 lb./sq. in., this treatment also converting the indicator compound to the deep blue colour of the anhydrous form. The indicator colour may change to pink due not only to fracture or hole development but also because plastics materials are not completely water vapour impervious. Substrate 10 may be of Al foil adjacent barium titanate coating 11, phosphor layer 12 and electrically conducting translucent layer 13. Application of the individual layers utilizing specific suspension media is disclosed. The envelope is preferably a transparent fluorinated hydro-carbon material.
Patent GB-1002345-A (GB)
Title: Photographic layers for the silver dyestuff bleaching method
IPC: C09B43/08
Filed: 1963-10-09
Abstract: Dyes having the general formula <FORM:1002345/C4-C5/1> wherein R1 and R2 are benzine residues having the azo and -O-Cu-O- links in ortho position, the azo and azoxy groups being linked to R2 in para position, are prepared by condensing 1 mol. of 4,41-dinitro-stilbene-2,21-disulphonic acid with two mols. of an amino-azo dye of the formula HO3S-R1(OH)-N = N-R2(OCH3)-NH2 and then demethylating the methoxy groups and metallizing with a copper compound.  The amino-azo dye is itself prepared by coupling the diazonium salt of an o-hydroxyamine of the formula HO3S-R1(OH)-NH2 with an amine of the formula H-R2(OCH3)-NH2.  The benzene residue R2 may have additional substituents in para position to the methoxy group (i.e. to the -O-Cu-O-linkage in the final dye) such as methyl, methoxy or ethoxy substituents. The benzene residue R1 also may have additional substituents such as chloro, methyl, ethyl, nitro or further sulphonic acid groups.
Patent GB-1186194-A (GB)
Title: Radar System.
IPC: G01S13/42
Filed: 1967-08-31
Abstract: 1,186,194. Aerials. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 31 Aug., 1967 [1 Sept., 1906]. No. 39962/67. Heading H4A. In a radar vertical antenna array, scanning in elevation is effected by both phase shift adjustment in the feeds to the separate antennas and in carrier frequency adjustment. The phase shifters may be continuously adjustable ferrite cores, controlled rectifiers or binary combinations of fixed phase-shifting devices. When, at a given azimuthal position no echoes are received at a wavelength, # 2 , then the carrier generators E 1  and E 3  are operated by the logic circuit, 44, for determining whether the target is below or above the central lobe (wavelength # 2 ) Sweep control circuit 5, recenters the central lobe, associated with generator E 2 , on the target, by varying the phase shifters in the feeds to the split antenna array A<SP>1</SP>, A<SP>11</SP>. Each antenna may be a conventional dipole or a dielectric tube and the radiation may be either circularly or linearly polarized. By adjustment of the antennµ feed phase shifters, the number of principal lobes equals the number of carrier generators and the axis of each lobe has a characteristic angle of elevation.
Patent GB-1438351-A (GB)
Title: Power driven hair combing appliance
IPC: A45D24/04
Filed: 1973-08-23
Abstract: 1438351 Power hair comb SUNBEAM CORP 23 August 1973 40061/73 Headings A4K and A4V [Also in Division F2]  A power driven hair comb has comb members (22, 23) Fig. 1 (not shown) releasably supported in a housing (15) in parallel juxtaposition not more than 0.25 inches apart and arranged for out of phase reciprocation at more than 4000 cycles per minute and preferably at between 6000 and 9000 strokes per minute of from 0.03 to 0.103 inch, i.e. equal to or less than the comb tooth pitch. Power may be taken from a rubber mounted motor 24 via drive block 39, crank-pin and slot 41, 42b in yoke 42 and member 36 pivoted to oscillate about an axle 37 to reciprocate the rods 32, 33 connecting member 36 to links 35, the combs being attached to these links by sockets 47 and in the same manner to a pair of idling links, at their ends remote from the motor.
Patent GB-1442939-A (GB)
Title: Quartz crystal oscillator
IPC: H03H9/21
Filed: 1974-09-13
Abstract: 1442939 Piezo-electric resonator SUWA SEIKOSHA KK 13 Sept 1974 [14 Sept 1973] 40092/74 Heading H1E To support a quartz resonator of, e.g. tuning fork form 8, springy metal support member 11 having part 13 attched to the resonator and part 17 atttached to a fixed ring base 20, the two being coupled by a resilient part 12 stepped 14 clear of the resonator but running under it until bent back on itself, can deflect elastically in the transverse direction of the fork vibration, or perpendicular to this direction. A terminal block 19 carrying terminals 23 is sealed hermetically into the evacuable enclosure member 24 and to the ring base 20, the terminals being wired 18 to Au on Cr laser-gapped electrode layers on the resonator. Alternatively the wires 18 may be replaced by a thin metal rectangular frame (Fig. 7, not shown), the ends being severed after connection. After assembly fine frequency adjustment may be made by laser evaporation of part of deposited weight pads 9. In the sealed-on lid 26, limiting protrusion 28 protects the resonator from accidental damage. Terminals 23 and earth pin 29 are connected to the external circuit.
Patent GB-865792-A (GB)
Title: A device for maintaining a constant depth of working engagement of implements mounted on a tractor
IPC: A01B63/114
Filed: 1958-12-15
Abstract: 865,792. Tractor power-lift. VYZKUMNY USTAV ZEMEDELSKYCH STROJU PRAHA. Dec. 15, 1958 [Dec. 17, 1957], No. 40318/58. Class 79(1). In a tractor power lift system a pump relief valve 7 Fig. 1 is loaded through a piston 11 and spring 8 by the pressure in the system during the lifting of an implement so that the valve is pre-loaded at a spring tension proportional to the weight of the implement for working at constant depth. In the lifting position a of the control valve 3 the system pressure is transmitted through passages 25, 26 to the differential piston 11 which loads the spring 8 through a push rod 10 and cap 9. The effective area of the valve 7 is arranged to be greater than that of the piston 11 so that when the control valve 3 is moved to the position d for operation at constant depth a predetermined proportion of the weight of the implement is relieved. A valve 13 Fig. 2 is operated to seal the fluid behind the piston 11 and is operated to open by a stop 35 when the valve 3 is moved to the lifting position a by a control lever 34. A second control lever 36 Fig. 5 releases the stop 35 when not required. The relief valve 7 may also be manually preloaded by a third control lever 40 operating a push rod 39 which is connected to the cap 9 through a pin 37.
Patent GB-943397-A (GB)
Title: Document viewer
IPC: A47B53/00
Filed: 1962-10-25
Abstract: 943,397. Cabinets. SPERRY RAND CORPORATION. Oct. 25, 1962 [Nov. 8, 1961], No. 40354/62. Heading A4B. A cabinet 10 for displaying record cards 14 includes a rectangular frame 31, 32, 33 defining a reference plane in the front wall 12 of the cabinet, guide means 39, 40 secured to a bracket 36 pivotally mounted, as at 37, to the frame for movement from the reference plane to a second inclined plane in which a window 20 is slidable in an extension channel 55 which in turn slides in the guide means 39, 40, the arrangement being such that the window 20 slides relative to the extension 55 until stops 68 on the window 20 abut stops 63 on the extension 55 and thereafter the window 20 and extension 55 slide together in the guide means 39, 40 until stops 64 on the extension 55 abut stops 44 on the guide means 39, 40. In its normal condition the window 20 is locked, as at 21, in the plane of the front wall 12 to prevent access to, but to facilitate viewing of, record cards 14 supported in frames 13 pivotally mounted at 15. A pivotally mounted selector 24 is movable in a slot 23 beneath the window 20 to facilitate turning of the cards 14. When the window 20 is located in the inclined position permitting access by an authorised person it is locked firstly by a spring urged ball 52 engaging a hole 53 in the bracket 36 and secondly by a spring latch 80 engaging a projection 79 carried by the window 20. A spring unit 70 mounted on the bracket 36 counterbalances the weight of the window in intermediate positions. A member 47 on the frame 32 engages a slot 48 in the bracket 36 to limit the tilting of the latter.
Patent GB-991905-A (GB)
Title: Lacquers
Inventor: GOULD REX WILLIAM
IPC: C08L27/06
Filed: 1961-11-13
Abstract: A lacquer comprises a solution in a common solvent of (a) a soluble thermoplastic copolymer comprising at least 50% by weight of vinyl chloride together with a second monomer which is a vinyl ester of s saturated monocarboxylic acid, an ester of an a ,b -ethylenically unsaturated monocarboxylic acid with a saturated alcohol or vinylidene chloride, (b) an epoxy resin which is a halogen free condensation product of an epihalohydrin or dihalohydrin and a polyhydric alcohol or phenol and (c) a hardener which will cause the epoxy resin to harden at room temperatures. The solvents may be ketones, esters and chlorinated hydrocarbons and they may contain aromatic hydrocarbon diluents.  The hardener may be caustic soda, calcium oxide, sodium amide, organic polyamines and their reaction products with alkylene oxides, piperidine, triethanolamine, hydrazodicarbonimide and cyanamide and its non-resinous polymer products. The lacquers may also contain plasticizers such as esters of dicarboxylic and phosphoric acids, stabilizers such as dibutyltin dilaurate, and pigments such as titanium dioxide.  Reference has been directed by the Comptroller to Specification 887,921.ALSO:Metals such as iron, steel, aluminium and zinc and other materials such as glass and ceramics may be coated by spraying, brushing, a doctor-knife, a roller, centrifugal casting or curtain-coating with lacquers comprising a solution in a common solvent of (a) a soluble thermoplastic copolymer comprising at least 50% by weight of vinyl chloride together with a second monomer which is a vinyl ester of a saturated monocarboxylic acid, an ester of an a ,b -ethylenically unsaturated monocarboxylic acid with a saturated alcohol or vinylidene chloride, (b) an epoxy resin which is a halogen-free condensation product of an epihalohydrin or dihalohydrin and a polyhydric alcohol or phenol, and (c) a hardener which will cause the epoxy resin to harden at room temperatures.  The lacquers may also contain plasticizers, stabilizers and pigments.  Reference has been directed by the Comptroller to Specification 887,921.
Patent GB-1466456-A (GB)
Title: Electrochemical cells
IPC: H01M4/90
Filed: 1974-09-18
Abstract: 1466456 Electrodes for hybrid cells PPG INDUSTRIES Ine 18 Sept 1974 [19 Sept 1973] 40619/74 Heading H1B In a secondary cell, the cathode is made of an electrolyte impermeable silicon or silicon alloy substrate with at least a partial coating of an electroconductive or electrocatalytic material on its surface. Preferred example.-A rechargeable brominezinc cell has a cathode comprising a silicon alloy substrate containing 0À3 weight per cent boron and 8 weight per cent iron carrying a ruthenium dioxide-titanium dioxide coating (process for applying described). The cathode and a zinc anode are in a 2 normal aqueous zinc bromide electrolyte on top of a carbon disulphide layer. Other examples. Cathode-substrate: silicon doped with <2% nitrogen, phosphorus, aluminium or boron; silicon-silicide alloys containing 2 to 30% titanium, zirconium, hafnium, vanadium, columbium, tantolium, chromium, molybdenum, tungsten, manganese, iron, cobalt, nickel, copper, ruthenium, rhodium, palladium, osmium, iridium, platinum, gold or silver. Electrocatalytic layer: platinum, ruthenium, rhodium, palladium, osmium, iridium or an alloy of 10-20% iridium balance platinum, oxides thereof and mixtures of oxides, e.g. crystalline combination of platinum dioxide and palladium dioxide; delafossites; pyrochlores; perovskites; mixtures of oxygen-containing compounds of platinum group metals with oxides of titanium, tungsten, zirconium, hafnium, vanadium, columbium, molybdenum or chromium; magnetite, spinels. 5, 10 or 20% of the substrate surface may be coated, thickness 5 or 10 microinches. Anode: zinc, graphite coated with zinc, silicon coated with zinc. Electrolyte: any zinc halide, oxyhalate, peroxide. Electrolyte - insoluble phase: chloroform, bromoform, iodoform, carbon tetrachloride, carbon tetrabromide, perchloroethylene, perbromoethylene. If zinc chloride electrolyte used-compressed or liquefied chlorine cylinder. Diaphragm between electrodes may be permionic perfluorinated, sulphonated hydrocarbons or perfluorinated sulphonated styrene. Electrolyte-permeable barriers also mentioned. Bipolar electrodes.-A silicon substrate coated with ruthenium dioxide-titanium dioxide on one side and zinc on the other side.
Patent GB-1087956-A (GB)
Title: Alarm timepiece
IPC: G04C21/04
Filed: 1965-09-23
Abstract: 1,087,956. Alarm timepieces. GENERAL TIME CORPORATION. Sept.23, 1965 [Oct. 2, 1964], No.40676/65. Heading G3T. In an alarm timepiece the balance wheel 10 drives a clock train 14 and a cam 16 for actuating at a selected time a switch 18 operating the alarm by connecting a loudspeaker 50 into a circuit 30 maintaining the oscillations of the balance wheel 10. The circuit 30 includes a transistor 32 which is energized from a battery 34 when a magnet 40 on the balance wheel 10 sweeps past a control coil 38. An electrical pulse then passes through the drive coil 36 which interacts with the magnet 40 to impart an oscillation sustaining impulse to the balance wheel 10. When the switch 18 is operated the loudspeaker 50 is connected across the drive coil 36 to be operated by the voltage in the latter. The coils 36, 38 are inductively coupled so that an oscillating voltage of a desired audio frequency is applied to the loudspeaker 50; and a resistor 60 is included in the circuit 30 to prevent oscillation of the circuit 30 except when the magnet 40 induces a voltage in the coil 38. The speaker 50 illustrated is of the moving coil type. An alternative circuit is described in which the speaker is of the crystal type.
Patent GB-862317-A (GB)
Title: Improvements in or relating to remote electrical indicating devices
Inventor: HAYMAN BERNARD MAX
IPC: G08C19/38
Filed: 1958-12-17
Abstract: 862,317. Remote electrical indicators. AUTOMOTIVE PRODUCTS CO. Ltd. Nov. 27, 1959 [Dec. 17, 1958], No. 40777/58. Class 40 (1). [Also in Group XIX] A D.C. angular positional follow-up indicator for use for readings of, for example, repeated rotations in the same direction includes means for resetting the indicator pointer to zero by rotating the stator through up to 360 degrees without moving the indicator rotor relative to the stator. As shown, the stator is rotated with the rotor 5 in relation to the dial 3, by means of a belt 10 and pulleys 9 and 11 by a resetting knob 7 in front of the dial. Rotation of the stator is limited by a stop arm 12 which is pivoted on an axis 13 and mounted on the back of the dial. One end of the stop can move between two stops 14 and the other end engages a stud 15 mounted on the pulley which rotates the stator, see Fig. 2 (not shown). In this way the stator is allowed a full 360 degrees rotation and no more, and excessive twisting of conductors is avoided.
Patent GB-1243891-A (GB)
Title: Semi-conductor articles
IPC: C23C4/123
Filed: 1969-08-15
Abstract: 1,243,891. Crystallization from a drip-fed melt. CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE G.m.b.H. 15 Aug., 1969 [16 Aug., 1968], No. 40972/69. Heading BIS. A homogeneous melt of Ge-Si or Mo-Si, contained in a crucible 1 of which at least the surface which contacts the melt is of pyrolytic graphite, electrographite or silicon carbide, is forced in the form of drops of a predetermined constant weight in the range 5-200 mg through a capillary orifice 2 in the base of the crucible by means of a reciprocating plunger 4, the bottom end of the capillary being surrounded as at 3 by boron nitride or silicon nitride. The weight of the drops is regulated by the stroke of the plunger and/or the smallest distance between the plunger and capillary and/or the size of the capillary and the drops are caused to fall on a receiver, e.g. crucible 8, which moves so that the position of the crystallization front relative to the capillary outlet remains constant. The dropping rate is adjusted so that each drop arrives at the crystallization front before the preceding drop is completely solid. The support 9 and the plunger 4 may be rotated, stirring vanes 6 being provided. Crucible 8 may comprise two graphite halves, held together at 9 and 10. The plunger may act as a piston in a cylindrical bore immediately above the capillary, giving a metering effect (Fig. 3, not shown). The addition of B, Al, Ga, P, As or Sb as dopants is specified.
Patent GB-1505436-A (GB)
Title: Flexible position probe assembly
IPC: H01F29/10
Filed: 1976-10-05
Abstract: 1505436 Flexible displacement transducer WESTINGHOUSE ELECTRIC CORP 5 Oct 1976 [16 Oct 1975] 41264/76 Heading G1N(A) [ Also in Division H3] A flexible probe comprises a plurality of transducers 20, supported on a strip 12, flexible in one plane, biased together by means not shown. The transducers comprise primary and secondary windings 25, 26 coupled by member L, movable relative to the probe, which are connected in groups corresponding to Gray binary code digits to give a phase change output to a signal processer for later display. The advantage of the arrangement lies in ease of installation in e.g. a reactor core where L is attached to a control rod, where overhead clearance does not permit a rigid probe.
Patent GB-1389989-A (GB)
Title: Boatds driven by a sail
IPC: B63H9/08
Filed: 1973-09-03
Abstract: 1389989 Sailing vessels P G VICARD 3 Sept 1973 [15 Sept 1972] 41355/73 Headings B7M and B7V The boom 8 of a mainsail 5 is pivoted at a point 9 remote from the mast 3 so that the latter does not interfere aerodynamically with the function of the sail. The boom 8 is pivoted to a further boom 10 which is in turn pivoted to the mast at 11. The boom 9 is adjustably secured in position by sheets 12 and 13. The jib sail 16 is similarly pivoted at a point 21 remote from its front edge. Halyards 4 and 18 run inside the mast. Bolt ropes at the fronts of the sails may be enclosed by folds of sail cloth for aerodynamic efficiency, Fig. 3 (not shown). The arrangement may be applied to a land yacht; but in the case of a marine yacht, drift and heeling may be inhibited by enclosing the keel 24 and rudder 25 in thin resilient casings 26 which are perforated to allow the casing interior to communicate with the water. If the keel or rudder tends to move sideways, the casing separates at one side to give a correcting crosssectional shape.