baber/WOPTO huggingface dataset:
Patent GB-922832-A (GB)
Title: Improved process for the production of tetrafluoroethylene
Inventor: EVANS DENNIS ERNEST MACKLEY
IPC: C07C17/269
Filed: 1960-05-24
Abstract: In the production of tetrafluoroethylene by pyrolysing CHC1F2 and fractionally distilling the products to remove tetrafluoroethylene, the fraction of the residue boiling over the range from -30 DEG  to +6 DEG C. under atmospheric pressure is subjected to the action of an oxidising agent before it is vented to the atmosphere.  The toxic compounds hexafluoropropene and perfluoroisobutene boil within the given range and are thereby substantially completely destroyed. Preferably the fraction boiling over the range from -40 DEG  to 40 DEG C. is treated.  Suitable oxidising agents are alkali metal permanganates, dichromates and hypochlorites; photo-oxidation using oxygen with a sensitiser such as chlorine may be used.
Patent GB-1434336-A (GB)
Title: Turntables
IPC: B62D7/04
Filed: 1974-04-26
Abstract: 1434336 Display stands BRITISH TURNTABLE CO Ltd 8 Aug 1974 [26 April 1974] 18355/74 Heading A4T A vehicle display turntable comprises a base unit 11, a central support unit 12 mounted on a spindle 11a for rotation relative to the unit 11  under the action of a motor (not shown) located in a housing 14, a T-shaped cradle 13 being telescopically mounted at each end of the support unit 12, each cradle 13 comprising a transverse hollow element 13c at whose ends a wheel pad 16c is telescopically mounted. During movement of a cradle 13 relative to the support unit 12 an upwardly protruding plate (13b) on the cradle engages in a gap between spaced plates (15a) on the unit 12 to provide guidance for the cradle 13, Fig. 2 (not shown), and similarly each wheel pad 16c is guided during movement thereof relative to its cradle 13 by the engagement of a rib (16a) in a detent (17a) formed on the cradle, Fig. 3 (not shown).
Patent GB-444566-A (GB)
Title: Improvements in or relating to electric incandescent lamps
IPC: H01K1/50
Filed: 1934-06-21
Abstract: 444,566. Electric incandescent lamps with residual gases. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES ETABLISSEMENTS CLAUDE-PAZ & SILVA, 8, Rue Cognacq-Jay, Paris. June 21, 1934, No. 18419. Convention date, Jan. 23. [Class 39 (ii)] In an electric incandescent lamp containing as a gaseous filling a mixture of krypton and xenon, with a nitrogen content of less than 1 per cent, the xenon content comprises between 5 per cent and 20 per cent. The filament is wound in the form of a helix of greater pitch than in the usual lamps containing inert gases other than krypton or xenon.
Patent GB-1094116-A (GB)
Title: A process and device for extruding ball pen tips
IPC: B21C23/03
Filed: 1965-05-03
Abstract: 1,094,116. Making ball point pen tips, extruding. REAL PATENTAUSWERTUNGSANSTALT. May 3, 1965 [May 26, 1964], No. 18451/65. Headings B3A and B3P. In a method of making a tip for a ball point pen, a length of wire is sheared to the required length and in a series of backward extruding operations is formed as a cap in the shape of a stepped cylinder having a bore of constant diameter. A length of wire is inserted in a die in a plate 1 and rotation of the plate to a second work station shears the wire to length. At this station the wire is first backwardly extruded by a punch 5 against an extractor 4 in a recess in the plate 1. The plate is rotated to the next work station where the extractor 4 is withdrawn to the bottom of the recess and the member 3 is further extruded by a punch (5<SP>1</SP>) which enters into the narrow diameter part of the recess, Fig. 3b, (not shown). The plate 1 is rotated again and the extrusion process is completed at the next station by a further punch 5" which enters the member 3 and drives its bottom portion down until it abuts the extractor 4. The extractor is then raised to drive the pen tip and a stop 11 upwardly until the tip is clear of the plate when the stop 11 comes to rest and the punch is withdrawn as it continues to move upwardly.
Patent GB-1236362-A (GB)
Title: Variable speed power transmission
IPC: F16H49/00
Filed: 1969-04-10
Abstract: 1,236,362. Screw centrifuge. ALFA-LAVAL A.B. 10 April, 1969 [10 April, 1968], No. 18457/69. Heading B2P. [Also in Division F2] A conveyer screw 32, for removing sludge from a surrounding rotor chamber 23 (shown only at their ends) in which oil is centrifuged, is driven at a variable speed, which differs by only a small amount from that of the centrifuge rotor 23, by harmonic gearing wherein an internally toothed ring gear 10 is driven with and at the same speed as the centrifuge rotor 23 by one input belt 22, whilst a strain-wave in a meshing toothed flexspline 11, fast with the conveyer screw 32, is propagated by a cammed strain-inducing element 12, driven by a second input belt 48 at variable speeds forward or reverse. Thus with 242 and 240 teeth respectively on the ring-gear 10 and flexspline 11; a twolobe strain-inducing element 12; and the centrifuge rotor 23 driven at 5600 r.p.m., the conveyor-screw speed is 5646; 5630, or 5651 r.p.m., according as to whether respectively the second input 48 is held stationary; rotated in the same direction as 23 at 1920 r.p.m., or reversely at 600 r.p.m. Lubrication is effected by oil floating from a reservoir 24 in the driving member 20 into a paring chamber 25 wherein two scoop tubes 51, rotating with the secondary drive 47 feed oil through holes 53, 54 respectively to the strain-inducing bearing 42 and bearing 43, surplus oil returning to the reservoir through a hole 26 in the paring-chamber wall and flexopline holes 11c.
Patent GB-1390326-A (GB)
Title: Plate tensioning apparatus for rotary cylinders of printing presses
IPC: B41F27/12
Filed: 1973-04-17
Abstract: 1390326 Tensioning flexible printing plates HEIDELBERGER DRUCKMASCHINEN AG 17 April 1973 [21 April 1972] 18467/73 Heading B6C Flexible printing plate is tensioned about cylinder 2 between fixed clamp 3 and sliding clamp 8, which is biased in a tensioning direction by two springs 18, 19 and can be held in a non- tensioning position by a pivoted stop 25. When a new plate is inserted the sliding clamp is pushed to the cylinder periphery, and the stop is moved into place by hand or by a spring. Cams 6, 12 are turned to open and close the clamps, then the stop is knocked clear and the springs tension the plate. A further tensioning may be applied by nut 34.
Patent GB-185533-A (GB)
Abstract: 185,533. Talbot, G., and Rosenberg, W. F. H. June 15, 1921. Trimmings.-Insects, such as butterflies and moths, intended to be attached to hair or other pins, for use as millinery ornaments, or for other purposes are preserved by being coated with cellulose and celluloid varnishes. In particular the surface which is not to be displayed, along with the head, thorax, and abdomen, is coated with cellulose acetate, and the remainder with a solutiou of nitrocellulose in amylacetate. Paint may be mixed with the nitrocellulose solution. The wings of one specimen may be detached and secured to those of another, so as to show the same on both sides. The head, thorax and abdomen may be boiled in cellulose acetate to harden them. The antennae may be coated with cellulose acetate, or artificial antennae may be made of fine silk-covered wire, or thread stiffened with cellulose acetate. The insect may be attached to a pin by a coiled spring.
Patent GB-1131304-A (GB)
Title: Pipe coupling
Inventor: PADDINGTON ARTHUR LOFTUS
IPC: F16L37/252
Filed: 1965-05-03
Abstract: 1,131,304. Pipe couplings; valves. DRACONE DEVELOPMENTS Ltd. 29 April, 1966 [3 May, 1965], No. 18553/65. Addition to 1,085,054. Headings F2G and F2V. A pipe coupling, comprising first and second coupling parts 1 and 18, respectively, which are initially coupled by the engagement of two diametrically-opposed cams 26A, 26B of the second coupling part bayonet fashion in slots 13 in the first coupling part by relative rotation of the two coupling parts and which are subsequently drawn tightly together by rotation of said cams about axes transverse to the longitudinal axis of the coupling as disclosed in the parent Specification 1,085,054, is characterized in that diametrically-opposed rollers 7 carried on the first coupling part and displaced by 90 degrees from the cams, engage in similarly displaced slots 35 in the second coupling part to limit relative tilting of the coupling parts about an axis transverse to the longitudinal axis of the coupling. In another aspect of the invention, the cams, which are operated by a common handle 24, are locked in the desired angular position for initial coupling by spring-loaded plungers 28, carried by members 22 on which the cams are formed, engaging within grooves 31 formed in an extension 32 on the second coupling part. On initial coupling, the leading edges 41 of the first coupling part members 9 in which the cam-receiving bayonet slots are defined disengage said plungers from their grooves to allow subsequent rotation of the cams and hence tightening of the coupling parts. In a modification, Fig. 5 (not shown), the cams are mounted on a common shaft which also carries a butterfly valve (42) whereby said valve is opened on coupling of the first and second parts and closed on uncoupling. By shaping the valve with oppositely facing recesses on opposite sides of its axis, Figs. 6 and 7 (not shown), the fluid pressure in a pipe section connected to the second coupling part may be arranged to bias the valve towards either the closed position or the open position. The common cam and valve shaft is sealed by diametrical projections (45) extending from an annular valve seat (44) in the second coupling part body. Bushes 46 compress said projections and urge peripheral ribs thereon into sealing engagement with corresponding recesses in said coupling part body. The valve can be used independently of the pipe coupling.
Patent GB-917444-A (GB)
Title: Vertical textile mercerising machine equipped with fluid pressure arrangement
IPC: D06B7/08
Filed: 1961-05-23
Abstract: A fabric mercerising machine includes in the caustic treatment a series of sets of pressure rollers arranged one above the other, a series of nozzles disposed along the rollers <PICT:0917444/IV (b)/1> to spray caustic solution on the fabric and, in the expanding chamber, a series of expanding rollers arranged one above the other with nozzles disposed along the rollers to spray a heating fluid on to the fabric.  In the arrangement shown fabric from pile 1 passes through tensioners 2, 2a; guides 3 and expanders 4 into caustic tank A.  The fabric passes down through pairs of fluid loaded pressure rollers 5 and 6 and is sprayed by sets of nozzles 7 with caustic solution from tank 8a.  The fabric passes out of the caustic tank under squeezing roller 12 and passes to the stabilisation air chamber B.  Thereafter it proceeds to the set of expanding rollers 20 in chamber C where it is sprayed with hot water from nozzles 23.  The fabric is then squeezed in rollers 24 and thereafter passes into a steam chamber D for further stabilization and thence into neutralisation tank E.  The fabric is then squeezed under roller 33 and led through cold water wash tanks F, F1 and piled by platting device 44.
Patent GB-568486-A (GB)
Title: New or improved method of and means for feeding rods to wire-drawing machines
IPC: B21C47/32
Filed: 1943-11-10
Abstract: 568,486. Drawing wire. BARRON, C. A., and BARRON, H. D. Nov. 10, 1943, No. 18649. [Class 83 (iv)] [Also in Group IX] Rod is fed to a, wire-drawing machine by means of a bobbin divided longitudinally into sections c, the commencing end c<2> of the wire of one section being welded to the finishing end c<1> of the adjacent section. In the machine, the bobbin is mounted so that the wire is delivered over a pulley f traversed step-by-step to be opposite the section from which the wire is being delivered, or the whole bobbin may be traversed either continuously or intermittently. Specification 11170/08, [Class 120], is referred to.
Patent GB-952743-A (GB)
Title: Improvements in or relating to a method of and apparatus for producing a photograph having a relief effect
IPC: G03B35/24
Filed: 1960-05-26
Abstract: 952, 743. Stereoscopic photography. P. F. CUVIER. May 26, 1960 [June 9, 1959], No. 18710/60. Heading G2A. Auto-stereoscopic photographs are produced using the astigmatic effects of a single objective lens 1 between which and the sensitive material there is disposed a screen 2 composed of a plurality of lens elements 3 having different radii of curvature in orthogonal planes. Vertical and horizontal slits 8 and 9 expose diametric zones of the lens to increase depth of field and are variable in. width under the control of a single member 20 rotation of which is transmitted via bevel gears so as to cause movement of the four blades 4, 5, 6, 7 which define the slits. The diameter of the objective lens should be at least equal to the interocular distance.
Patent GB-1339243-A (GB)
Title: Device for sorting and directionally positioning components to  be fed from a bulk supply
IPC: G04D1/00
Filed: 1972-04-21
Abstract: 1339243 Orientating articles WAHLI FRERES SA 21 April 1972 [26 April 1971] 18761/72 Heading B8S A device for feeding components from a bulk container 6 in a predetermined orientation, comprises a base 7 of the container sloping towards a vertical wall thereof, a receiver 15 at the upper end of said wall for receiving a limited number of the components and having calibrated passages extending downwardly from the receiver base and shaped so that components of a given shape can only pass therethrough in a pre-determined orientation, a reciprocating plate for transferring components in limited numbers upwardly adjacent said wall from the container base 7 to the receiver 15, and means for agitating components in the receiver to facilitate alignment of components with the passages. The passages open into a duct 17 along which a rod 43 is reciprocated to push the components one at a time into position adjacent spindles 18 of a machine tool for processing. The container 6, receiver 15 and calibrated passages are filled with oil, and communicate through interconnecting passages with two cylinders 34 in which pistons are reciprocated to pulsate the oil and agitate the components. The pistons, recipocating plate and rod 43 are all motivated by cams on a common drive shaft, the device being pivotally supported by structure 1 on a rigid number 5 for vertical reciprocation by a further cam to offer one component at a time up to the spindle 18. In another embodiment, the pivoted structure supports two containers.
Patent GB-1165463-A (GB)
Title: Electric Plug and Socket Arrangements
Inventor: BASSANI ERMANNO
IPC: H01R13/453
Filed: 1967-04-24
Abstract: 1,165,463. Two-part couplings. BASSANI S.p.A. 24 April, 1967, No. 18817/67. Heading H2E. Insertion of a plug 23-24 in a shuttered socket 1 deflects pivoted arms e.g. 10, 11, which support a shutter 3, so releasing the shutter from projections 12 on the arms and enabling it to be depressed by the plug until contact blades, e.g. 30, 31 of the plug engage respective contacts, e.g. 22, 21 carried by the pivoted arms. Compression springs are located between the shutter and socket base and between the arms and socket side walls, grooves (7, Fig. 2, not shown) in the shutter slidably engaging longitudinal ribs (5) on the socket side walls. Contact strips, e.g. 18, 16 having terminals 19 support the arms and are connected to the respective contacts 22, 21. The plug body comprises insulating halves 23, 24 secured together by a screw and bushing 25, 26. The contact blades 30, 31, whose free ends project through apertures in the plug body are retained by terminal screws. A cable insulation-gripping band 34 is secured to the plug body part 24 by screws 35. The plug and socket bodies may include polarizing ribs and grooves. The invention is described with reference to a three-pole device for establishing connection to a single-phase supply, but is also applicable to four-pole connectors for use with a three-phase supply.
Patent GB-710397-A (GB)
Title: Pressure release device for ovens and furnaces
IPC: C21D9/00
Filed: 1952-07-28
Abstract: 710,397. Furnace safety vents. SMITH, J. L. Jan. 26, 1953 [July 28, 1952], No. 18963/52. Classes 51 (1) and 51 (2) In an oven or furnace of the type in which a wall comprises outer and inner casings of sheet metal with heat insulating material therebetween the wall incorporates panels which can open outwardly under a predetermined pressure and which are of a size permitting the escape of a large volume of gas subject to rapidly rising pressure and the insulating material between the inner and outer casings is arranged so that it is free to be released into the open air when the panels open. In the embodiment shown panels 2, 3, 5, 6, are arranged in the casings 1, 4, of a furnace top wall the hinges 5a, 6a, for panels 5, 6, being inset in relation to the hinges 2a, 3a, for panels 2, 3, so that the insulating material will not be compressed and bind adjacent the hinged ends of the panels to resist their opening. The panels are disposed around the vent chimney 10 leading from the furnace working chamber 8 and a flange 11 fixed on the chimney supports panels 5, 6, in the closed position whilst the panels 2, 3, are supported in their closed position by the furnace side walls.
Patent GB-319425-A (GB)
Title: Improvements in electro-magnetic reproducers for use with gramophone and the like records
IPC: H04R11/08
Filed: 1928-06-30
Abstract: 319,425. Oliver Pell Control, Ltd., and Oliver, C. June 30, 1928. Gramophone pick-ups; magnetic instruments.- A gramophone pick-up comprises a U-shaped permanent magnet with coils and pole-pieces mounted thereon, an armature yieldingly connected to another oscillatory member or members which is or are in turn yieldingly supported in the rigid frame of the reproducer, the additional oscillatory member, or members s collectively, being of greater mass than the armature, and rubber or like damping means having substantially no natural oscillation frequency inserted between the armature and the additional oscillatory member or members and between the latter and the rigid frame of the reproducer. The construction shown comprises a magnet A to one limb of which is secured a bracket L carrying the coils B and pole-pieces C. Screwed to the other magnet limb is an iusulating bracket F to which in turn is secured a channel-shaped member G through the flanges of which are passed adjustable screws G<1>. The tips of these screws are recessed to receive the points of screws H which serve as pivots for a second channel-shaped member I which constitutes the additional oscillatory member. The screws H also serve to secure to the member I a flat spring J to the middle of which is secured an armature K of lesser mass than the member I and adapted to receive the stylus K<1>. Rubber &c. damping blocks M are arranged between the flanges of the bracket L and member I, and the armature is also damped by a rubber &c. block O inserted between it and a plate P against the back of which bear screws Q so that the gap between the armature and pole-pieces can be adjusted. The block O is preferably made stiffer than the blocks M.
Patent GB-647894-A (GB)
Title: Improvements in or relating to the manufacture of fruit-containing products
IPC: A23L25/00
Filed: 1947-07-16
Abstract: A fruit product for use in bakery goods is made by removing more than 70 per cent of the natural oil from the fibrous meat of a tropical nut, e.g. coconut, brazil nut, babassu nut, or palm kernel, grinding the nut meat, grinding to a paste a dried fruit, e.g. prunes, raisins, or dried apricots, peaches or figs, or a jam or marmalade, and mixing the nut meat with the fruit paste, the proportion by weight of the nut meat being not more than 30 per cent of the mixture.  Removal of the oil and the flavouring substances from comminuted coconut meat or desiccated coconut is effected by agitatting with hot water, to which sodium hydroxide may be added if desired, and draining off the liquid, followed, if desired, by the pressing out of remaining liquid.  An example is concerned with grinding together coconut meat so prepared, finely ground dried figs, orange jam, powdered sugar, orange flavour, colouring matter, and salt, and shaping the mixture in a pellet-forming machine or cutting threads of the mixture extruded through apertures in the die of a meat grinding machine.  The Specification as open to inspection under Sect. 91 comprises mixing any ground fruit with a minor proportion of ground nut meat from which at least a substantial portion of the oil has been removed, and describes a mixture of coconut fibre, sugar, liquor chocolate, shortening, egg whites, flour, chocolate flavour, and salt.  This subject-matter does not appear in the Specification as accepted.
Patent GB-292370-A (GB)
Title: Improvement in machine for making fabric
IPC: D21F11/00
Filed: 1927-07-18
Abstract: 292,370. Marks, E. C. R., (Pittsburg Steel Co.). July 18, 1927. Compound fabrics and sheet materials. - Apparatus for attaching a backing sheet to wire fabric comprises means for deflecting portions of the backing sheet through the body of the wire fabric, means for threading a retaining wire between the back of these portions and the front of the wire fabric, and means for forming bends in the retaining wire to permit the deflected portions of the backing sheet being returned to their initial positions. In the construction shown, a paper sheet 16 and wire fabric 17 are drawn from rolls into engagement with a reciprocating feed slide 25 which is provided with hooked blocks 27 and rubber pads 29 for engagement, respectively, with the fabric 17 and the sheet 16 during the forward movement of the slide. The fabric and sheet pass between slitting dies 48, 48<a>, the lower dies 48 being adapted to be raised so as to cut slits 61 in the paper. When the dies 48 are lowered the fabric and sheet are advanced to bring the slits 61 between threading dies 63, 64, which cause the wide portions of the paper between the slits to be deflected below the plane of the wire fabric, thereby permitting the insertion of retaining wires 66 between the lower side of the fabric and the upper face of the wide portions of the paper. The retaining wire is fed from the side of the machine by means of feed rolls 67, 68 driven intermittently, and is cut automatically in lengths corresponding to the width of the compound fabric. The paper 16 is held in spaced relation to the fabric 17 by means of crimping dies, 97, 98, the lower dies 98 being moved upwards to form bends in the wire 66 adjacent to the slits 61. Means may be provided for forming the bends successively from the centre of the wire outwards to each end, or successively from one end to the other. The completed fabric is cut in desired lengths by means of shearing blades 105, 106. Specification 230,620 is referred to.
Patent GB-120818-A (GB)
Title: A New Method of Slating Roofs.
Inventor: JONES JOHN
IPC: E04D1/34
Filed: 1917-12-29
Abstract: 120,818. Jones, J. Dec. 29, 1917. Roofs, slating.-In slating roofs, the slates are provided at each side with a notch a through which a flatheaded securing-nail, such as that shown in Fig. 4, is driven into the lath beneath; or a wire may be stretched across the slate, passed through the notches, and secured to flat-headed nails in the side of the lath.
Patent GB-824769-A (GB)
Title: Improvements in or relating to photographic reproduction
IPC: G03F5/06
Filed: 1955-07-02
Abstract: 824,769. Photographic reproductions. FIELD, A. E. June 4, 1956 [July 2, 1955], No. 19216/55. Class 98(2) A method of photographic reproduction in which image-wise exposure is effected on to a light sensitive surface includes the step of making an exposure either successively or simultaneously through a circular stop and a stop the light aperture of which includes a transparent or translucent material. The latter stop may be as described in Specification 563,028 and a half tone screen may be used to form a photomechanical screen printing plate.