baber/WOPTO huggingface dataset:
Patent GB-1061158-A (GB)
Title: An improvement in or relating to fluid tight connections
Inventor: BROWN HARRY
IPC: F16L15/00
Filed: 1964-11-19
Abstract: 1,061,158. Pipe joints. PARAGON PLASTICS Ltd. Oct. 27, 1965 [Nov. 19, 1964], No. 47207/64. Heading F2G. A fluid-tight joint connects two members 10 and 12 together by a screw-threaded connection 16-18 sealed by a tapered member 34 which is forced into a tapered end 24 in the member 12 by means independent of the screwed connection 16-18 so as to embrace the member 10 with a force independent of that which has screwed them together. An abutment face 22 may be provided for the end of the member 10. In an alternative embodiment (not shown) the nut 28 which compresses the member 34 is screw-threaded on to the outside of the member 10 instead of on to the member 12.
Patent GB-1060472-A (GB)
Title: Improvements in or relating to control knobs
Inventor: SWEEPER HARRY
IPC: G05G1/12
Filed: 1963-11-29
Abstract: 1,060,472. Securing knobs on shafts. MINISTER OF AVIATION. April 29, 1964 [Nov. 29, 1963], No.47230/63. Divided out of 1,054.302. Heading F2U. A plastics control knob 1 for manipulating a control spindle 7 fitted with a projecting transverse pin 8 (Figs. 3, not shown), for operating mechanical fastenings, adjustments or variable electrical control devices, is formed with a blind round, square or D-shaped crosssection hole 2, in the walls of which are formed one or more keyhole-shaped axial slots 3 having lips 4 elastically deformed when the knob 1 is pushed on to the end of the shaft 7 and snapped over the transverse pin 8. The base and side walls of the keyhole-slots may be tapered providing a lead-in to facilitate fitting. The outer surface of the knob 1 is conical and formed into a number of splines 6 which may provide a finger grip or be used to co-operate with an outer knob (not shown) if fitted thereon.
Patent GB-1033897-A (GB)
Title: Improvements in or relating to apparatus for and methods of manufacturing electrical circuit elements
IPC: G03F7/20
Filed: 1962-12-17
Abstract: 1,033,897. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 17, 1962 [Dec. 22, 1961], No. 47516/62. Heading H1K. [Also in Division G2] A number of identical electrical circuit elements are produced by either (i) exposing a master pattern through a multiple lens array to a photographic emulsion and developing all the identical images produced on the emulsion to form a mask. This process is then repeated using a different master pattern and a different emulsion until the desired number of masks is obtained. A mask is then contacted with a photo-resist on a semi-conductor wafer, exposed and the wafer prepared for base diffusion, recoated with a resist, exposed to a different mask and the wafer prepared for emitter diffusion &c. or (ii) exposing a master pattern through a multiple lens array to a photoresist on a semi-conductor wafer and washing off the unexposed areas to uncover a number of identical areas on the wafer, preparing the wafer for base diffusion, recoating with a photoresist, exposing to a different master pattern through the lens array, washing off and preparing the wafer for emitter diffusion &c. As shown, a semi-conductor wafer of silicon 809 coated with silicon dioxide layer 810 and a photo-resist 811 is exposed to a photographic mask containing a number of identical images in contact with the wafer. The photo-resist is developed to leave openings 815, 816, 817 and the silicon dioxide is removed with hydrofluoric acid. Boron is then diffused on to the exposed silicon at 822. Silicon dioxide reforms during diffusion and the oxide layer is recoated with a further photo-resist. It is then exposed to a second mask, developed to form openings 826, 827, 828 and phosphorus diffused at 829 to form a PN junction. Silicon dioxide reforms and a further resist layer is coated on, exposed to a third mask and developed. Metal is then deposited at the exposed areas 830, 831 and 832 and leads attached to produce transistor 836. The various transistors produced at the various locations have their parts in perfect registry as the various masks used are perfectly registered. A metal mask made by exposing a photo-resist coated metal to a master pattern through the multiple lens array, washing off and etching the metal) may be used instead of a photographic mask especially for applying metal contacts to the semi-conductors. Alternatively, masks may be dispensed with by directly exposing a photo-resist on a semiconductor wafer through the multiple lens array to a master pattern.
Patent GB-1000385-A (GB)
Title: Process for dyeing acrylonitrile polymer fibres
IPC: D06P1/92
Filed: 1963-12-03
Abstract: Polyacrylonitrile containing materials are dyed by padding with a mixture containing a dye, ortho-mita or para-cresol and an aliphatic polyhydric alcohol, the dyeing is fixed by steaming. The material contains at least 40% polyacrylonitrile which may be copolymerised with vinyl acetate, or chloride, or pyridine, or with acrylates e.g. methyl methacrylate or methallyl sulphoric acid or its salts.  A mixture of ortho, meta or para cresols may be used preferably at concentrations of at least 30 gm of cresol per litre.  The aliphatic polyhydric alcohols used preferably contain not more than six carbon atoms especially ethylene, diethylene, propylene, pentamethylene and hexamethylene glycols, glycerine, butane and pentane triols, ethythritol and pentaerythritol.  At least twice the amount of polyhydric alcohol (by weight) to that of cresol is used.  Steaming is at 100-150 DEG C.
Patent GB-1217796-A (GB)
Title: Process for the production of phenyl aldehydes
Inventor: BRILL WILLIAM F
IPC: B01J23/30
Filed: 1969-09-29
Abstract: 1,217,796. Production of phenyl aldehydes. PRINCETON CHEMICAL RESEARCH Inc. 29 Sept., 1969 [16 Oct., 1968], No. 47670/69. Heading C2C. Phenyl aldehydes are prepared by subjecting the corresponding alkylbenzenes to a vapour phase oxidation in the presence of a catalyst mixture consisting of oxides of tungsten and molybdenum with a tungsten to molybdenum ratio of 1:1 to 20:1. The oxidation is preferably carried out at a temperature of from 400 to 600 C. and the optimum ratio of tungsten to molybdenum is 9:1. In the examples, benzaldehyde is made from toluene and terephthaldehyde, with some tolualdehyde, is made from p-xylene.
Patent GB-1366633-A (GB)
Title: Hydraulic accumulator
IPC: F15B1/10
Filed: 1971-10-04
Abstract: 1366633 Hydraulic accumulators JOSEPH LUCAS (INDUSTRIES) Ltd 4 Oct 1971 [8 Oct 1970] 47831/70 Heading F1D An hydraulic accumulator comprises a spherical housing 10 within which two domed members 11, 12 slide in cylindrical guides 15, 16. Frustoconical bellows 19, 20 extend between flanges 13, 14 on members 11, 12 and annular brackets 17, 18 on the housing 10 which is thus divided into two hydraulic chambers 21, 23 and a gas chamber 22. The bellows 19, 20 are formed by a plurality of annular discs alternately connected at their inner and outer edges, these edges being turned over in opposite directions to prevent lateral movement of the discs when the bellows are collapsed.
Patent GB-1273015-A (GB)
Title: Polypropylene moulding material
IPC: C08K3/013
Filed: 1969-09-30
Abstract: 1,273,015. Polypropylene moulding compositions. BADISCHE ANILIN- & SODAFABRIK A.G. 30 Sept., 1969 [1 Oct., 1968], No. 47906/69. Heading C3P. Moulding compositions comprise by weight (1) 100 parts of polypropylene of intrinsic viscosity 6 to 10 and flexural modulus less than 2À5 x 10<SP>9</SP> dynes/cm.<SP>2</SP>, (2) 5 to 25 parts of an alkaline earth metal stearate, (3) 5 to 25 parts of an oily polybutadiene of molecular weight 1000 to 20,000, and (4) 0À01 to 5 parts of a free radical forming substance which decomposes at 130‹ to 250‹ C. Specified radical formers are peroxides, dibenzyls and organometallic compounds, and the preferred stearate is magnesium stearate. The compositions may also contain pigments, stabilizers, lubricants and fillers, e.g. carbon black, glass fibres and asbestos fibres, and may be moulded into shaped articles. Examples describe compositions of polypropylene, polybutadiene, magnesium or calcium stearate and (1, 3 and 4) dicumyl peroxide together with (6 and 7) asbestos fibres, (8) glass fibres, (9) Portland cement, (10) kaolin, (11) carbon black and (12) silicon dioxide; and (2) di-t-butyl peroxide and (5) α,α<SP>1</SP>-diacetoxy-α,α<SP>1</SP>-dimethyldibenzyl.
Patent GB-1123409-A (GB)
Title: Fluorine-containing copolymers
IPC: C08F28/00
Filed: 1965-11-12
Abstract: Copolymers of (1) an ethylenically unsaturated monomer containing an epoxy group and (2) an ethylenically unsaturated monomer containing a perfluorocarbon group, the copolymers having a carbon to carbon main chain, and containing recurring monovalent perfluorcarbon groups of 4 to 18 carbon atoms and recurring epoxy groups, at least 20% by weight of the copolymer being contributed by fluorine atoms and at least 0.05% by oxirane oxygen. Conventional techniques are used to obtain the copolymers. Exemplified monomers are (1) <FORM:1123409/C3/1> C5F11CH2.O.CO.C(CH3) = CH2; and C7F15CH2.O.CO.C.(CH3) = CH2; and (2) glycidyl acrylate and methacrylate and a terpolymer including octadecyl methacrylate.ALSO:Fabrics such as cotton, polyester, nylon, rayon and wool are treated with an aqueous emulsion or non-aqueous solution of certain copolymers, by padding the copolymer composition onto the fabric followed by curing by heating.  The copolymer is obtained by copolymerising two ethylenically unsaturated monomers, one containing a perfluorcarbon groups, the other an epoxy group. Other components of the treating compositions exemplified are xylene hexafluoride, 1,1,1-trichloroethane, p-toluene sulphonic acid, benzoltrifluoride, and 1,1,2-trichloro-1,2,2-trifluoroethane.  The epoxy containing monomer is suitably an epoxy vinyl ether, acrylate or methacrylate, while the perfluorcarbon containing monomer is suitably an acrylate, methacrylate or a -chloracrylate ester of an N-alkanol perfluoroalkanesulphonamide or an omega-perfluoroalkanol.
Patent GB-1075253-A (GB)
Title: Improvements in or relating to electro-slag welding apparatus
Inventor: SANTILHANO PHILIP DIAS
IPC: B23K25/00
Filed: 1962-12-21
Abstract: 1,075,253. Welding by fusion. BABCOCK & WILCOX Ltd. Dec. 17, 1963 [Dec. 21, 1962; March 20, 1963], Nos. 48429/62 and 11067/63.. Heading B3R. In an electroslag welding machine for welding workpieces of magnetic material the welding head is held against the workpieces by magnetic holding means comprising magnetic members distributed longitudinally and transversely of the machine. The welding head 51 and melt-retaining pads 34 are supported on a frame 3 having rollers 6 which may engage the work. A motor driven shaft 11 journalled in the frame 3 carries eccentric discs located in bearings in U-shaped electromagnets 12. Alternate magnets 12 are moved in phase so that in effect the magnets are in two alternately moving sets which raise or control the upward movement of the frame 3. The frame 3 is suspended from a cable connected to a counterweight which may be substantially equal to or greater in weight than the-frame 3 and the components mounted thereon. Brass screws 28 in the magnets 12 are adjustable to engage the work and vary the magnetic pull on the work. This may also be varied by adjusting the current passing through the magnetizing coils. By varying the magnetization of the individual magnets 11 a steering effect is obtained. The inclination of the pads 34 may be adjusted by screws 35. In a modification (Fig. 4, not shown), a counterbalanced apparatus (50) is held against the work and moved under the control of motor-driven magnetic rollers (58) and (61) which are silicon rubber tyred. One of the rollers (58) is mounted in a bracket (54) pivotally supported on the frame (50) of the machine so as to provide a steering action. Additional fixed electromagnets (64) between or at the sides of the rollers (58, 61) retain the machine against the work. A welding head and melt-retaining pads are mounted on the frame (50).
Patent GB-1093566-A (GB)
Title: Shock absorbing couplings
IPC: G06M1/22
Filed: 1965-11-15
Abstract: 1,093,566. Resilient couplings. KOLLSMAN INSTRUMENT CORPORATION. Nov. 15. 1965 [Jan. 25, 1965], No. 48435/65. Heading F2U. A shock absorbing coupling comprises split spring rings 27, 28 having aligned apertures 29, 32a engaged by a pin 26 of a member fast with a driving shaft 20, and having apertures 30, 31 engaged by pins 34, 33 on a driven member which carries the driving pin 38 of a Geneva mechanism.
Patent GB-1181118-A (GB)
Title: Machined Composite Metal Castings
IPC: F01L3/22
Filed: 1967-10-25
Abstract: 1,181,118. Making composite valve seats. FORD MOTOR CO. Ltd. 25 Oct., 1967 [1 Dec., 1966], No. 48438/67. Headings B3A and B3F. [Also in Division F1] An annular insert 13 of a wear-resistant alloy (examples are given), embedded around a valve port 12 during the casting of an engine cylinder head 11, has a body 17 tapered as indicated so that near the edge 21 the alloy softens and there is some fusion with the cast metal. There may be slots (23) in the body 17 for interlocking with the cast metal. The cylinder head and valve port are then machined to remove the metal represented by the stippled area to provide a finished head and valve seat.
Patent GB-1147000-A (GB)
Title: Polymerization process
IPC: C08F136/06
Filed: 1967-10-25
Abstract: 1,147,000. Polymerizing butadiene. GOODYEAR TIRE & RUBBER CO. 25 Oct., 1967 [6 Dec., 1966], No. 48502/67. Heading C3P. High cis-1,4 polybutadiene is made by contacting butadiene in an inert solvent or in bulk, with a catalyst system selected from (1) TiI 4  and an organoaluminium compound, and (2) TiCl 4 , I 2 , and an organometallic compound, stopping the reaction with at least one compound of the formula MOR where M is an alkali metal, O is oxygen, and R is H, or an alkyl, cycloalkyl, aryl, aralkyl, or alkaryl radical, and recovering the polymer. The preferred organoaluminium compound is represented by the formula AlR 3  where R is an alkyl, cycloalkyl, aryl, alkaryl, or aralkyl radical. Preferred compounds of the above formula, are sodium and potassium methoxides, sodium isopropoxide, and lithium ethoxide. Preferred metal hydroxides are of sodium, potassium and lithium. The compounds are preferably added as a solution in an alcohol. Exemplified catalysts are triisobutyl aluminium and TiI 4 , and triisobutyl aluminium, TiCI 4  and I 2 . Compounds of the above formula may be dissolved in monohydric alcohols.
Patent GB-1205938-A (GB)
Title: Improvements in or relating to echo suppressors
Inventor: FLANAGAN JAMES LOTON
IPC: H04B3/23
Filed: 1967-10-26
Abstract: 1,205,938. Echo suppressors, WESTERN ELECTRIC CO. Inc. 26 Oct., 1967 [31 Oct., 1966], No. 48664/67. Heading H4R. In a long-distance system comprising oneway channels 16, 26 associated at the terminals by the usual hybrid arrangements, the leakage between the channels across the hybrid is tested during silent periods of speech and in accordance therewith a bridging transversal filter network is adjusted to compensate for echo effects. As shown, speech detectors 36, 46 are connected to the channels, and when they indicate no transmission a pulse from a pulser 38 is sent across the hybrid 21 to a delay line 39 from which tappings are taken to networks 42 to control modulating networks 32 connected to the tappings of a bridged delay line 31. Delay networks 41, 30 are also suitably adjusted. The outputs of the delay line 31 are combined in an adder 33 and fed to a subtracting network 25 in the outgoing channel to cancel echoes arising from incoming speech. Instead of specific test pulses, the speech signals themselves or periodic auxiliary signals may be employed, or the test may be initiated manually when required. The networks 42 may be arranged to hold samples of the test pulse results. The echo canceller need not be located close to the hybrid junction.
Patent GB-1122660-A (GB)
Title: Atomizing liquids
Inventor: SCHELLENBERG ROLF
IPC: B05B7/16
Filed: 1965-11-17
Abstract: 1,122,660. Nozzles. BADISCHE ANILIN- & SODA-FABRIK A.G. 17 Nov., 1965 [18 Nov., 1964], No. 48763/65. Heading B2F. A nozzle suitable for spraying molten salts or metals comprises an inner nozzle member 2 connected to a supply conduit 5 for the spray material, and an outer nozzle member 1 insulated from the member 2 and provided with a chamber 22 which is supplied with cold compressed air by a conduit 21, the member 1 being connected to a source of high frequency current so that the nozzle is heated inductively to a temperature of about 1600C. The member 1 is disc-shaped and is slit radially, Fig. 2 (not shown), the adjacent sides of the slit being separated by insulating material (12). The conduit 21 enters the chamber 22 tangentially so that the molten discharge of spray material is atomized by a coaxial whirling discharge of air. The member 1 is preferably of copper and the air supplied by the conduit 21 is cold so that it cools the outer wall of the chamber 22.
Patent GB-1189579-A (GB)
Title: Circuit Arrangement for Amplifying Signals.
IPC: H03F3/26
Filed: 1968-10-15
Abstract: 1,189,579. Amplifier circuits; television. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 15 Oct., 1968 [27 Sept., 1968], No. 48887/68. Headings H3T, H3W and H4F. An amplifying element, such as transistor 2, has loads 3, 7 in the two connections between the supply and the output of the element and switching means connecting the loads to an output terminal 4 whereby the polarity of the output signal in relation to the input signal may be selected. The circuit shown is used to bring positive and negative television signals to the same output polarity and the two load resistor circuits are equal so that the two output signals are equal. Equality of D.C. level in the output may be produced by a bias changing switch S 2  or by a D.C. restoring system.
Patent GB-1072890-A (GB)
Title: Fused salt electrolytic method and apparatus
IPC: C25C3/10
Filed: 1963-11-25
Abstract: In a method of fused salt electrolysis, e.g. the reduction of alumina dissolved in molten-cryolite, in which there is applied to the melt one or a series of high tension pulses to produce an activated melt having a lasting increase in the conductivity of the melt, the applied voltage being less than that causing dielectric breakdown of the melt, a portion of the activated melt is mixed with further fused salt or melt component and the resulting combined melt is electrolyzed, whereby increased conductivity is obtained in the combined melt.  The combined melt may be formed in the cell in which activation is effected by the subsequent addition of further salt or melt component or the activated melt may be formed in a mother cell and portions of the activated melt fed continuously or intermittently to a group of electrolysis cells containing untreated melt and connected in series or parallel, combined melt from the electrolysis cells being returned similarly to the mother cell for further activation.  Typically alumina may be added to the mother or electrolytic cells to replenish the content as aluminium is produced. The activating pulses may be as described in Specifications 1,063,855 and 1,071,441.
Patent GB-1039329-A (GB)
Title: Improvements in or relating to portable instruments for the detection of gases in underground workings
IPC: G01N33/00
Filed: 1964-12-03
Abstract: 1,039,329. Two-part couplings. R. HBNER. Dec. 3, 1964 [Dec. 5, 1963; Feb. 5, 1964; Feb. 8, 1964], No. 49133/64. Heading H2E. [Also in Division G1] The housing of a portable electrical gas analyser is adapted for use with plug-in batteries, the interconnecting arrangement being such that different circuits may be automatically selected. The basic instrument in its housing 1 (Fig. 3), has a number of plunger contacts 3; the battery in its casing 2 has a cover-plate 5, and a number of plunger contacts 4. The spring-loaded cover-plate is supplied with holes to allow appropriate contacts 3, 4 to make. Rotation of the fixing bolts 11 operates a rack 12 to move the cover-plate back, allowing selected contacts 3, 4 to engage to complete the testing circuit as desired. The contacts 3, 4 and the holes in plate 5 have matching oblique surfaces 9 (Fig. 5, not shown). In an alternative arrangement (Fig. 7, not shown), the battery unit 2 is inserted with a cavity in the instrument housing 1 which is normally closed by a plate 16 hanging from hinge 17. The plate 16 contains the appropriate connecting links between plunger contacts 18 on the battery box, and plunger contacts 23 from the instrument circuit.
Patent GB-1132089-A (GB)
Title: Improvements relating to insulating materials for ducts and the like
IPC: F16L59/02
Filed: 1965-11-19
Abstract: 1,132,089. Heat insulated pipes. I/S KAHLER & CO. 19 Nov., 1965 [20 Nov., 1964], No. 49321/65. Heading F2P. [Also in Division B5] A heat-insulated duct of polygonal or rectangular cross-section has walls comprising plates of 0.6 to 5% by weight of a binder mixed with a mineral wool of weight/volume ratio of 80 to 500 Kgs per cubic metre, the plates being provided with a gas-tight covering material on at least one side. The binder is a phenol or melamine thermo-setting resin. The covering is aluminium foil interleaved with a plastics material resin reinforced with glass fibre, if desired. The covering is wrapped around the wall elements 3 to 6 which have their bevelled edges glued together, the end of the covering 9 forming a flap which overlaps one corner.
Patent GB-1419781-A (GB)
Title: Exhaust silencers
IPC: F01N1/02
Filed: 1972-10-28
Abstract: 1419781 Exhaust silencers NORTON VILLIERS Ltd 17 Oct 1973 [28 Oct 1972 18 April 1973]  49804/72 and 18675/73 Heading F1B An exhaust silencer comprises inner, intermediate and outer tubes 10, 18, 19, a passage 23 between the intermediate and outer tubes ending in a slot 28 and having a length at least fifty times the slot height and one or more chambers 42, 43, 44 between the exit openings of the inner tube 10 and the inlet to the passage 23, the walls of which are imperforate. The cross-sectioned area perpendicular to the gas flow direction is everywhere at least as great as the cross sectional area of the inlet to inner tube 10. The exit opening of the inner tube leads into a diffuser 12 having slots 17. The outlet slot may be continuous and in the form of a circle, oval, rectangle or of sinuous shape or it may be of finite length and straight or arcuate. The chambers 42, 43, 44 act as resonators and are tuned to different frequencies and inter-connected by tuned pipes 37 and 40. Further attenuation is provided by a dead air space 45.