baber/WOPTO huggingface dataset:
Patent GB-1520126-A (GB)
Title: Fasteners
IPC: F16B21/02
Filed: 1975-09-12
Abstract: 1520126 Stud fasteners ILLINOIS TOOL WORKS INC 12 Sept 1975 [18 Nov 1974] 37518/75 Heading E2B  A stud fastener for engaging in a polygonal (especially square) aperture in a panel and being secured therein by rotation, has a shoulder which abuts the entry side of the panel, one or more spigots which lie in the aperture to prevent lateral movement, and a plurality of resilient T-shaped anchoring elements which can pass through the aperture but engage the rear side of the panel when the fastener is turned to its fastening position. In the plastics form shown in Figs. 2, 4 and 5, there are three raised locating spigots 51, 52, 53 which fit into the corners of the plate aperture 45, and two anchor elements 58, 59 having chamfered corners for easy rotation to the fastening position shown in Fig. 4 from the insertion position of Fig. 2. In (Fig. 7), the anchors 87 extend well into the hole, and in (Fig. 11) they are joined by an arch 91. Several other slight variations are described (Fig. 27) shows a pressed metal form achieving the same effect.
Patent GB-1182307-A (GB)
Title: Photographic Products and Processes
IPC: G03C8/48
Filed: 1967-01-11
Abstract: 1,182,307. Photographic materials for diffusion transfer processes. INTERNATIONAL POLAROID CORP. Jan. 11, 1967 [Jan. 11, 1966], No. 37633/69. Divided out of 1,182, 302. Heading G2C. A photographic material for use in the diffusion transfer process comprises a support coated with a silver halide emulsion layer and optionally a translucent second layer, either or both layers containing an opaque substance in an amount which does not prevent exposure of the emulsion through the second layer and a humectant in the layer or layers containing the opaque substance. The material preferably contains a top layer with a silver precipitating agent but alternatively such a layer may be formed during development if the developer contains such an agent and a polymer. On imagewise and development in the presence of a silver halide solvent, the negative image formed in the emulsion layer is masked by the opaque substance so that only the positive image is seen. In the examples, a paper support is coated with a gelatino silver halide emulsion containing alpha methyl glucoside as humectant overcoated with a gelatino titanium dioxide layer and then with a image-receiving layer containing lead sulphide. The material is imagewise exposed and developed to produce a denser positive image than a material not containing humectant. Alternatively, the titanium dioxide overcoat may be dispersed with and titanium dioxide alpha methyl glucoside and silica (see Specification 1,182, 308) may be incorporated in the silver halide emulsion. Glycerine is also specified as a humectant. The opaque substance may be formed in the material after imagewise exposure thereof.
Patent GB-842205-A (GB)
Title: Improvements in the production of polymeric materials
Inventor: WATSON WILLIAM FERGUSON
IPC: B29B13/00
Filed: 1956-12-10
Abstract: Polymers are produced by subjecting a cross-linked rubber to shearing forces in the presence of a polymerizable olefinic compound.  Further monomer can be added to the product for a second operation to yield a product containing a smaller proportion of rubber.  Temperatures range from 250 DEG C. to -40 DEG C. The cross linked rubbers can be formed from natural or synthetic rubbers, e.g. polybutadienes-1, 3, copolymers of butadiene-1,3 with acrylonitrile, styrene, isobutylene, methyl methacrylate and methyl acrylate; polychloroprene; polyisobutylene; and those based on isocyanate modified polyesters and polyesteramides.  Monomers specified are acrylic acid and its esters with saturated and allyl alcohols; substituted acrylic acids and their esters with saturated alcohols, allyl alcohol and glycol; nitriles and amides of acrylic and substituted acrylic acids; vinyl acetate; vinyl and vinylidene chloride; methyl isopropenyl ketone; and vinyl compounds e.g. styrene, methyl vinyl ketone, N-vinyl pyrollidone, 2 vinyl pyridine and vinyl carbazole; butadiene; isoprene; chloroprene; and divinyl benzene.  Maleic anhydride may be added as a copolymer.  Two or more rubbers at least one of which is cross-linked, and or two or more polymerizable olefinic compounds can be employed.  Fillers and other compounding agents can also be present.  The addition of tertiary dodecyl mercaptan reduces the molecular weight of the product and increases the proportion of polymerized monomer not combined with the rubber.
Patent GB-940061-A (GB)
Title: Improvements in or relating to pneumatic tyre and wheel assemblies
Inventor: WRIGHT JOSEPH
IPC: B60C3/02
Filed: 1958-11-22
Abstract: 940,061. Spare wheel tyres. DUNLOP RUBBER CO. Ltd. Nov. 19, 1959 [Nov. 22, 1958; April 3, 1959], Nos. 37674/58 and 11340/59. Heading B7C. For use in the event of puncture of a normal vehicle wheel tyre, a pnuematic tyre is moulded so that in the uninflated and unstressed state it has parallel, closely adjacent sidewalls so that there is substantially no interior volume, and the tyre is assembled on a wheel rim, the overall axial width of both the tyre and the rim being less than half that of the inflated unloaded tyre. Figs. 1 and 2 show a tyre having a pair of bead cores 3, 4 serving to anchor two cross-laid reinforcing plies 6, 7 of parallel-cord rayon fabric having a cord angle of 29 to 30 degrees in the uninflated state, Fig. 1, which increases to 36 degrees in the inflated tyre, Fig. 3. The tyre beads may be moulded together as shown to form a tubular tyre, or the tyre may be open beaded as in Fig. 5 used with or without an inner tube. Fig. 8 shows the tyre formed with two beads 37, 38 of different diameters which are clamped together in a wheel rim recess by a detachable side flange 40. Fig. 9 shows a tubular tyre having a single bead core 44 clamped between rim flanges 45, 46, the two reinforcing plies 48, 49 of the tyre having their respective ends 48a, 48b and 49a, 49b overlapped at opposite shoulder regions of the inflated tyre. In an alternative construction, Fig. 12, the single bead core may be dispensed with, the tube being vulcanized directly on to a wheel disc periphery 52 through the medium of hard rubber rings 54, 55. For mounting on the vehicle wheel rim in place of the punctured tyre, the spare tyre has open beads 86, 87, Fig. 17, connected by a diaphragm 84. Fig. 13 shows a spare wheel and tyre assembly 62, 63 of the invention secured to a punctured vehicle wheel and tyre 61, 60 by spacing collars 64 screwed to the wheel fixing studs 66, the spare wheel 62 being bolted to the collars and having a ring 69 thereon to locate with the rim 70 of the vehicle wheel 61. Alternatively the spare wheel may be secured directly on the studs 66 by the wheel securing nuts, at least two of the stud holes provided in the spare wheel being of sufficient diameter to pass over the nuts so that not all the nuts have first to be removed. Subsequently the " passed-over " nuts are removed and either replaced by flanged nuts, or used in conjunction with flanged washers, to complete attachment of the spare wheel. Specifications 6067/59, 10092/59, 786,162 and 947,373 are referred to.
Patent GB-367494-A (GB)
Title: Improvements in methods of preserving rubber and products obtained thereby
IPC: C08K5/18
Filed: 1930-12-13
Abstract: 3-Aminoacenaphthene, of the formula <FORM:0367494/IV/1> is prepared by reducing 3-nitroacenaphthene, e.g. by means of iron filings and dilute hydrochloric acid.  3-a - and b -Naphthylaminoacenaphthenes are prepared by heating 3-aminoacenaphthene with a - and b -naphthol respectively.  Symmetrical ethylene-diacenaphthene diamines, of the formula <FORM:0367494/IV/2> are prepared by reacting an ethylene dihalide, e.g. ethylene dichloride, with an aminoacenaphthene.  2<1> : 4<1>-Diaminophenyl-3-aminoacenaphthene, of the formula <FORM:0367494/IV/3> is prepared by the reduction of the corresponding dinitrophenyl derivative obtained by the action of 2 : 4-dinitrochlorobenzene on 3-aminoacenaphthene.  Diacenaphtheneamines are prepared by the elimination of ammonia between two molecules of an aminoacenaphthene or by the condensation of an aminoacenaphthene with a hydroxyacenaphthene with the elimination of water. Diaminoacenaphthenes are obtained as a mixture of isomers by reduction of the product of dinitration of acenaphthene.  All the above compounds are antiagers for rubber.ALSO:Rubber is preserved by vulcanizing it in the presence of a substitution product of acenaphthene of the formula <FORM:0367494/V/1> where R is an hydroxyl, amino, alkylamino, or arylamino group. Examples are given of the use of 3-aminoacenaphthene and 3-b -naphthylaminoacenaphthene. Other compounds specified are 3-a -naphthylaminoacenaphthene, diaminoacenaphthenes, symmetrical ethylenediacenaphthenediamines, 21-41-diaminophenyl-3 - aminoacenaphthene and diacenaphtheneamines. 3-Aminoacenaphthene is prepared by reducing 3-nitroacenaphthene, for example by means of iron filings and dilute hydrochloric acid.  3-a - and b -Naphthylaminoacenaphthenes are prepared by heating 3-aminoacenaphthene with a - and b -naphthol respectively. Symmetrical ethylene-diacenaphthenediamines of the formula <FORM:0367494/V/2> are prepared by reacting an ethylene dihalide, e.g. ethylene dichloride, with an aminoacenaphthene. 21-41-Diaminophenyl-3-aminoacenaphthene, of the formula <FORM:0367494/V/3> is prepared by the reduction of the corresponding dinitrophenyl derivative obtained by the reaction of 2 : 4-dinitrochlorobenzene with 3-aminoacenaphthene. Diacenaphtheneamines are prepared by the elimination of ammonia between two molecules of an aminoacenaphthene or by the elimination of water between one molecule of an aminoacenaphthene and one molecule of a hydroxyacenaphthene.  Diaminoacenaphthenes are obtained as a mixture of isomers by reduction of the product of di-nitration of acenaphthene.
Patent GB-1537109-A (GB)
Title: Gas turbine combustion system
IPC: F23C99/00
Filed: 1976-09-13
Abstract: 1537109 Gas turbine engine combustion systems GENERAL ELECTRIC CO 13 Sept 1976 [23 Oct 1975] 37781/76 Heading F1L In an arrangement for burning fluid fuel in a gas turbine combustion system, all of the fuel containing fuel-bound nitrogen (i.e. fuel in which nitrogen atoms are chemically bound into fuel molecules containing at least one element other than nitrogen) being burned in the primary combustion zone near the rich experimental limit for fuel and air (i.e. fuel-rich combustion in which the overall fuel/air ratio is increased until the limit is reached beyond which the flame cannot be maintained). The hot gaseous reaction products from the primary combustion zone are maintained at substantially the adiabatic flame temperature (i.e. that temperature achieved upon completion of the reaction between fuel and air without loss of heat from the reaction system to the surroundings) downstream of the primary combustion zone for at least about 5 milliseconds. Secondary air is then mixed with the hot gaseous reaction products so as to provide an overall fuel-lean mixture and bring about secondary combustion under approximately stoichiometric conditions. Additional air is then introduced and mixed downstream of the previous zone so as to dilute the products of the secondary combustion prior to the entry of the products into the turbine inlet. The fuel molecules referred to in the definition of fuel-bound nitrogen may be ammonia, pyridine, quinoline-typically the nitrogen is chemically bound with carbon, hydrogen and sometimes oxygen in the fuel. For hydrocarbon type fuels the rich experimental limit falls in the range of equivalence ratios (i.e. the fuel/air ratio divided by the stoichiometric fuel/air ratio) between 1À2 and 1À5.
Patent GB-366220-A (GB)
Title: Improvements in racks for the storing of fruit and other articles
IPC: A47B75/00
Filed: 1930-12-17
Abstract: 366,220. Stretchers. ARMSTRONG, E. M., Clay Hill House, near Gillingham, Dorset. Dec. 17, 1930, No. 37998. [Class 108 (i).] Side bars 1, 2 are connected by slats 3 to form stretchers for transporting trays of fruit &c. and can be connected in pairs bv detachable links 8 to act as storage racks for the trays.
Patent GB-316504-A (GB)
Title: Improvements in textile fabrics woven from mixed yarns
IPC: D03D15/00
Filed: 1928-12-22
Abstract: 316,504. Pepper, Lee, & Co., Ltd., and Pepper, G. H. Dec. 22, 1928. Yarns.-Weft spun from white artificial silk mixed with natural coloured hairs such as Alpaca, Mohair, Goat, Llama, Vicuna or Camel, is used in weaving a lining fabric.
Patent GB-1215653-A (GB)
Title: Hoisting devices for loose material
Inventor: HOLMES FRANK RICHMOND
IPC: B66C13/00
Filed: 1968-08-09
Abstract: 1,215,653. Safety devices for grab-buckets. ASHMORE, BENSON, PEASE & CO. Ltd. 11 Aug., 1969 [9 Aug., 1968], No. 38052/68. Heading B8B. Further closing of the buckets 11, Fig. 2, of a grab is prevented by an overload device which produces an electric signal proportional to the tension in the closing ropes 10. The signal prevents further closing of the grab and causes the hoisting ropes 11 to be wound in. This produces a certain amount of spillage and lowers the tension in the closing ropes thus stopping the hoist motor and allowing the closing movement to be completed. The safe load may be detected either by a current measuring device in the motor circuit for the closing ropes or by load cells 18, Fig. 3, which support a pivoted subframe 14 on which the closing winch 12 and motor 13 are mounted. As a further safety measure load cells 20 may be placed beneath a sub-frame 17 which supports the hoist winch 15 and motor 16.
Patent GB-336161-A (GB)
Title: Improvements in and relating to change speed gearing
IPC: F16H61/02
Filed: 1929-12-12
Abstract: 336,161. Motorenfabrik Deutz Akt.- Ges. Dec. 13, 1928, [Convention date]. Variable-speed gearing.-A variable-speed gear for vehicles in which changes can be effected without substantial interruption of the drive comprises a pair of friction clutches A, B which connect the gear trains I, III and II, IV respectively to a shaft h, driven from the power shaft through reversing-gear c, d, e. The clutches are operated by levers F, F<1> connected by a link L adjustable at H. In making a change, the selected gear is engaged and runs idly until the clutch A or B is thrown in, the other being simultaneously thrown out, when the new speed is communicated to the driven shaft 14. During the change some slipping of the clutches is permitted. For a neutral position of the gear a toggle device E is actuated, releasing both clutches.
Patent GB-1096471-A (GB)
Title: Improvements in or relating to making closure caps
IPC: B21D51/46
Filed: 1963-09-27
Abstract: 1,096,471. Placing wads into caps. W. T. F. BOND. Sept. 23, 1964 [Sept. 27, 1963], No. 38233/63. Heading B8T. A closure cap wadding machine has a turntable upon which caps are delivered in association with wads, a pressure pad for maintaining location of a cap over a wad and a lifting rod for inserting the wad into the cap. Wads 2 are contained in a hopper 1 mounted for vertical movement in a framework 3 and supported at predetermined level on the turntable 13 by a wheel 5, the lowermost wad being retained by springs 4. Cylindrical lifting rods or punches 16 are mounted for vertical movement against a compressed spring 19 within apertures in the turntable and are supported on a wheel 20 running on a fixed base-plate 24, while a groove in the punch 16 houses a lifting rod 15, the  hemispherical lower end 15a of which rests on the base-plate 24 under the action of a spring 18. A plate 9 slightly thinner than a wad is fixed to the turntable 13 adjacent the aperture for the punch 16 and pushes out the lowermost wad against the springs 4 as the turntable rotates while the rod 15 becomes raised due to its end 15a riding over a ramp 21 so that it lifts the leading edge of the wad for engagement with the lowermost cap 11 in a cap shoot 10, the cap being pulled from the shoot past a retaining spring 28 by the rod 15. A pressure pad 27 is rotated in the direction C, Fig. 2, about its bearing 34 until it reaches a stop 25 when a spring-loaded plunger 30 on the pad 27 holds the cap down as the spring 28 is left behind. The pressure pad 27 with the cap and its aligned wad are then carried around together by the turntable while the rod 15 is lowered as it reaches the end of the ramp 21 and the punch 16 slides up as the wheel 20 crosses a camming surface 22 to push the wad into the cap overcoming the plunger 30 and raising the cap into the seating 31 in the pad 27. During further rotation of the turntable the plunger 16 is lowered as it clears the camming surface 22, and the pad 27 is rotated in the direction D (Fig. 2) as far as a stop 26 to free the wadded cap for removal by an ejector rod 35.
Patent GB-1124130-A (GB)
Title: Improvements in or relating to character recognition apparatus
IPC: G06V30/10
Filed: 1966-08-25
Abstract: 1,124,130. Character recognition. NIPPON ELECTRIC CO. Ltd. 25 Aug., 1966 [25 Aug., 1965], No. 38267/66. Heading G4R. In character recognition apparatus, the character is scanned to feed a shift register controlling logic circuits to indicate spotfeatures, the latter being stored in a plurality of further shift registers which feed recognition means including threshold logic. A character to be recognized is scanned in a raster by a flying-spot scanner, the detected bits being fed to a first one of five shift registers which are shifted in synchronism with the bits from the scanner. Four AND gates connected to stages of the first shift register detect respectively horizontal, vertical, left diagonal and right diagonal linear sets of three adjacent blacks on the character. Each AND gate, on detection, places a 1 in a respective one of the four remaining shift registers, each of which has a bit position for each bit position of the raster. For each of these four shift registers, nine threshold logic devices are provided to detect if the feature the shift register stores occurs more than four times in each block of a 3 block by 3 block subdivision of the character. The threshold logic devices feed AND and OR logic to identify the character. The four AND gates mentioned for initial feature detection may be replaced with logic detecting similar features when they occur at line edges, only.
Patent GB-1383048-A (GB)
Title: Gun barrels
IPC: F41A21/24
Filed: 1972-08-16
Abstract: 1383048 Gun barrels RHEINMETALL GmbH 16 Aug 1972 [6 Oct 1971] 38269/72 Heading F3C A gun barrel 1 is provided with equi-spaced longitudinally extending ribs 2 having curved portions 3 therebetween. A plane "X" passes through a pair of ribs 2 and through the longitudinal axis of the barrel 1, and a plane "Y" passes through another pair of ribs 2 and through the longitudinal axis of the barrel. The wall of the barrel is a minimum dimension at the positions coinciding with diagonals Z.
Patent GB-878113-A (GB)
Title: Shoe with a vulcanized outer or intermediate sole
IPC: A43B9/18
Filed: 1959-11-11
Abstract: 878,113. Shoes. RIEKER, K., RIEKER, K., and RIEKER, R., [trading as RIEKER & CO.] Nov. 11, 1959 [Jan. 17, 1959], No. 38317/59. Class 17(2) A Mackay lasted shoe is provided with a toe piece 7 of e.g. chrome leather which is stuck on to the lasted edge 3 of the upper 1 and the insole, 4, and additionally sewn on by the stitching 8, before the vulcanisation of the outer or intermediate sole 6, holes 9 being provided in the edge of the toe piece 7 so as to anchor the vulcanised sole.
Patent GB-338033-A (GB)
Title: Looper thread controlling mechanism for sewing machines
IPC: D05B57/02
Filed: 1929-12-16
Abstract: 338,033. Fairweather, W., (Singer Manufacturing Co.). Dec. 16. 1929. Chain-stitching.-In a cylinderbed chain-stitch sewing machine, a looper-thread controlling mechanism disposed crosswise to the bed is provided. It comprises a crank-andlink take up mounted crosswise of the bed at the end of the main-shaft 6. At the end of the main shaft is a circular head 7 carrying the crank pin 8 which is embraced by one end of a lever arm 9 fulcrumed at 10 to the link 11 journaled freely on the feed rock-shaft 12. The lever 9 is provided with spaced socket 13 in which are fitted the thread arms 14 having eyes 15 for the threads. Between the arms 14 is mounted a thread guide 17 and at the rear is a second guide 18. When the loopers are fully advanced the movable thread-eyes 15 are in alignment with the eyes in the guides 17 and 18. As the loopers retreat, the movement of the eyes 15 towards the dotted position in Fig. 2 takes up the slack looper-thread. The return movement of the eyes 15 to the full line position gives up thread to the loopers.
Patent GB-891096-A (GB)
Title: Process for the production of c-c paraffins
IPC: C10G47/00
Filed: 1959-11-12
Abstract: Hydrocarbons having 3-5 carbon atoms are produced by isocracking a fraction having at least the 10 and 90% points within the range 100-330 DEG F. and preferably having a basic nitrogen content of less than 50 p.p.m. in the presence of at least 1500 S.C.F. per barrel of feed over a hydrogenating catalyst disposed on an active acidic cracking support at at least 200 p.s.i.g. and 300-700 DEG F., there being consumed at least 500 S.C.F. of hydrogen per barrel of product boiling below 100 DEG F.  Suitable catalysts contain 0,1-30% of a group Ib, IIb, VI or VII metal, oxide or sulphide or mixtures thereof and particularly nickel sulphide disposed on silica-alumina, silica-magnesia, or silica-alumina-zirconia having a Cat A cracking activity of at least 25.  Material boiling above 100 DEG F. may be recycled to extinction.
Patent GB-1074424-A (GB)
Title: Induction crucible melting furnace with sub-divided furnace induction coil
IPC: H05B6/24
Filed: 1964-09-21
Abstract: 1,074,424. Induction heating. DEMAG ELEKTROMETALLURGIE G.m.b.H. Sept. 21, 1964 [Sept. 25, 1963], No. 38468/64. Heading H5H. The coil of an induction crucible melting furnace 1 is subdivided into a number of sections, e.g. 2, 3, the voltage applied to one of which sections is regulatable so as to reduce the heating effect of the section due to the erosion of the furnace lining in the region associated with this section. The coil section 2 is supplied directly from the power supply 4, 5; the coil section 3 being supplied with a reduced voltage tapped from the coil section 2 thus decreasing the rate of deterioration of the furnace lining as indicated by the broken line 1a In other embodiments the coil may have more than two sections one or more of which may be tapped to supply the remaining sections either in parallel or independently.
Patent GB-933401-A (GB)
Title: Supporting device using a layer of fluid under pressure
IPC: F16C32/06
Filed: 1959-11-12
Abstract: 933,401. Bearings. BERTIN & CIE. Nov. 12, 1959 [Nov. 25, 1958], No. 38470/59. Class 12 (1). [Also in Group XXXIII] A fluid bearing wherein the supporting fluid film is contained by an annular fluid screen or curtain comprises a base support 1 and a pad 2a secured thereto by supports 1a to provide a cavity which is formed with an inwardly inclined nozzle 3, the cavity being supplied with fluid through a conduit 5. A vertical shaft 8 formed with a flange 9 and a locating spigot 8a co-operates with the base support and the fluid curtain to contain a pressure cushion which supports the flange and shaft. A branch conduit 10 and valve 11 are provided to enable the cushion pressure to be adjusted.