baber/WOPTO huggingface dataset:
Patent GB-929152-A (GB)
Title: Composition brake block
IPC: F16D69/02
Filed: 1961-05-23
Abstract: A composition brake block for railway service consists of the following components in percentages by weight of the total block:-25-40% cast iron chips; 4-12% asbestos fibre; 4-12% heat resistant rubber binder selected from butadiene-styrene, butadiene-acrylonitrile and mixtures thereof, this binder being reinforced with 2-6% of a thermosetting resin stiffener; 1,5-4,5% sulphur, 5-25% litharge, 2-13% zinc oxide, 0-16% carbon black, 0-7% powdered lead and 0-7% powdered graphite with the preferred amounts of carbon black, lead, and graphite being at least 9%, 4% and 4% respectively.  The block may be prepared by soaking the rubber component in sufficient gasoline and/or petroleum derived solvent to gelatinize the elastomer, adding the dry powdered ingredients such as vulcanising agents, fillers &c., and mixing until dispersed throughout the rubbery mass, then adding the asbestos fibre followed by further mixing until all the components are blended into a coherent moist mass.  This mixture is extruded as pellets or otherwise shaped into discrete particles for drying and subsequent moulding, the latter being achieved by pressure and heat e.g. 3000 p.s.i. and 90 lbs of steam for 40 mins. to form a dense block and vulcanize the binder component and initiate the cure of the resin stiffener.  The blocks formed are then preferably baked for approximately 12 hours at 300 DEG F to complete the cure of the resin reinforcement.  Specifications 700,181, 720,291, 728,296 and 798,976 are referred to.
Patent GB-1497854-A (GB)
Title: Transformer tap-changing switching arrangement
IPC: H01F29/02
Filed: 1976-05-06
Abstract: 1497854 Transformer tap-changing arrangemerits MASCHINENFABRIK REINHAUSEN Gebr SCHEUBECK KG 6 May 1976 [9 May 1975] 18593/76 Heading HIT A transformer tap-changing arrangement comprises fixed contacts 5, 6, 7, and movable contacts 8, 9, further contacts 12, 13 connected to the contacts 8, 9 and a make-before-break contact co-operating with the contacts 12, 13 and connected to an output connector 15. A resistor 16 shunts the contacts 8, 9. The whole sub-system 8, 9, 16, 13, 14 is pivoted about a point 17. In operation to move from contact 6 to contact 7 the contact 14 is first moved on to contact 13 as shown. Contact 9 then leaves contact 6 and moves to contact 7 (Fig. 2, not shown). At this stage a circulating current due to the inter-tap vo tage between 6 and 7 flows through the resistor 16. Finally contact 8 transfers to contact 7 (Fig. 3, not shown). A common actuating mechanism including resilient storage means operates the sub-system 8, 9, 16, 12, 13, 14. It will be noted that when contact 9 leaves contact 6 a greater current is boken than when contact 8 does, and hence contact 9 suffers greater erosion. However on moving in the opposite direction the reverse order is followed, and contact 8 suffers greater erosion, Hence over a period the erosion water is equalized. The arrangement is applicable to a device in which a pair of contacts say 6 and 7 from a diverter switch associated with a separate selector contacting the tap contacts of a winding.
Patent GB-771165-A (GB)
Title: Resins from steam-cracked streams copolymerized with fulvene-type compounds
IPC: C08F36/04
Filed: 1955-06-28
Abstract: A steam-cracked petroleum fraction, boiling in the range 20 DEG  to 170 DEG  C., is polymerized in the presence of from 2 to 25 per cent of one or more fulvenes using an aluminium halide as catalyst. Specified fulvenes are dimethyl fulvene, the dimethyl fulvene of indene, g -phenyl-benzofulvene and g -methyl-g -vinyl-benzofulvene. The petroleum fraction may have the composition 10-25 per cent diolefins, 20-50 per cent aromatics, 24-66 per cent olefins and 1-4 per cent paraffins. The catalyst may be added to the petroleum fraction before the addition of the fulvene, while the fulvene may be added in the form of a solution in a hydrocarbon fraction.  Batch or continuous operations may be employed and the catalyst may be added over a period.ALSO:Fulvenes are prepared by reacting ketones or aldehydes with cyclic compounds containing active methylene groups, such as in cyclopentadienes, in the presence of a basic catalyst such as an alkali alcoholate solution in alcohol.  Thus dimethyl fulvene is prepared from acetone and cyclopentadiene while the dimethyl fulvene of indene is prepared by reacting acetone with indene in the presence of sodium methoxide and methanol.  Other specified ketones and aldehydes are methyl ethyl ketone, acetophenone, methyl vinyl ketone, acrolein, benzaldehyde and cinnamaldehyde while methyl and dimethyl cyclopentadiene may be used as the other reactant.
Patent GB-440211-A (GB)
Title: Improvements in sliding gates, doors, grilles, or the like
IPC: E06B9/06
Filed: 1934-06-25
Abstract: 440,211. Gates. CHAUDOIR, E., 14, Bloomfield Road, Highgate, London. June 25, 1934, No. 18692. [Class 45] A collapsable sliding gate, door, or grille comprises alternate main and secondary pickets 1, 4 guided by tracks at top and bottom and connected by link members B, C, D, or by hinged metal slats 25, Fig. 20 in the case of a solid gate, and the tracks for the secondary pickets are provided with fixed cams 22, 23 which move these pickets out of the plane of the gate so as to reduce the width required for the gate when collapsed (see Fig. 3). As shown in Fig. 1, the main pickets are in two lengths 1, 1<a> secured between the upper, middle, and lower links B, C, D, and the secondary pickets 4 are free to turn in the links and are connected to an adjacent main picket by two-part clamps 7 (Fig. 5) which grip the pickets 4 and provide bearings 7b for the pickets 1. Some of the pickets 1 are carried by hangers 9, from a rail 11 and are connected with the hangers by a swivel joint, The remainder of the pickets 1 are connected by swivel joints with guide-members 12<a> which engage the underside of the rail 11. The lower ends of the main pickets 1 are guided in a channel track 13, some of the pickets having enlarged ends 5<a>, Fig. 6, and the remainder being fitted with flanged rollers 14 which rest on the edges of the track and carry part of the weight. The upper end of each secondary picket 4 is fitted with a horizontal arm 15 carrying a roller moving between guides, and the lower end is fitted with an arm which engages in a guide track 21 adjacent to the track 13. The rail 11 and track 13 extend around the side of the gateway 17, see Fig. 3, but when the gate is opened, the cams 22, 23 engage the arms at the upper and lower ends of the pickets 4, and deflect the pickets 4 out of plane of the gate, so that as the pickets pass beyond the gateway and round the bend of the track they are closed up as shown. In a modification, Figs. 16-18 (not shown), each link is a two-part clamp as in Fig. 5. As shown in Fig. 19, intermediate bars 24 are provided between the main and secondary pickets 1, 4. The secondary pickets may be shorter at the lower end than the main pickets, and may then be guided at the lower end in the channel track 13 which is made lower at one side to permit them to move out. U.S.A. Specification 1,945,729 is referred to.
Patent GB-1475502-A (GB)
Title: Terminal with a spring clip
IPC: H01H85/20
Filed: 1973-10-18
Abstract: 1475502 Terminals ELECTRONIC & FLUORESCENT ACCESSORIES Ltd 10 Oct 1974 [18 Oct 1973] 18735/75 Divided out of 1475501 Heading H2E A terminal comprises a metallic body Fig. 1 and a phosphor bronze spring clip Fig. 2 a portion 12B of which is curved to receive the end cap of a fuse link, the tongue 12A being received in the bore 11 of the body where it clamped, together with a conductor wire, by a grub screw (not shown) carried in threaded bore 11A. Hole 12C in the spring clip is aligned with the grub screw hole 11A. The terminal may be incorporated in a terminal block as disclosed in Specification 1,475,501.
Patent GB-188446-A (GB)
Abstract: 188,446. Brierley, W., and Cooke, E. G. Sept. 13, 1921. Spindles; locking and sealing.- A combined petrol valve and locking-device for preventing the unauthorized use of motor vehicles comprises a casing a which is fitted to the fuel tank over the pipe leading to the carburettor, which pipe is connected at g to a tube b depending from the casing. A needle valve h, having a spindle adjustable by turning hexagonal collars m, n, is locked on its seating d in the bottom of the tube b, against the action of a spring i held between a recess in the bottom of the casing and a collar j on the spindle, by the bolt r of a lock s in the casing to engage a slot in an enlarged portion of the spindle, when it is depressed by a nob o external to the casing. On releasing the bolt r by the key of the lock, the spring i forces the valve off its seat until a shoulder u on the spindle abuts up against the casing a, when the petrol is free to resume its flow to the carburettor through radial holes c in the bottom of the tube b.
Patent GB-1465927-A (GB)
Title: Process for the manufacture of a support having one or more  raised areas thereon
IPC: G03G9/097
Filed: 1974-04-30
Abstract: 1465927 Making printing plates electrophotographically; etching HOECHST AG 30 April 1974 [2 May 1973] 18901/74 Headings B6C and B6J [Also in Division G2] A printing plate or printed circuit, having a pattern of raised and depressed areas on it is made by forming an electrostatic image on a photoconductive or resistive layer on a substrate, developing with a developer which without heating reacts with the image areas of the layer to make it resistant to a layer-removing liquid agent, and/or reacts with the liquid agent to make it inactive. Preferably the layer is photoconductive, and contains a resin which reacts with a component of the developer to form a complex compound, a chelate or a salt. Alternatively the developer may contain a substance which reacts with the liquid agent to form a salt. Removal of the non-image areas of the layer may be followed by etching of the substrate, which may be metal, plastics material, metallized plastics material, multi-layer metal or a cellulose product. The developer may contain wax, bitumen or resin particles. Materials which can be used are listed.
Patent GB-327914-A (GB)
Title: Improved construction of stay or strut for hinged or folding articles
IPC: E05C17/08
Filed: 1929-06-20
Abstract: 327,914. Greenman, H. June 20, 1929. Stays.-A lid 4 or other hinged article when raised is held automatically in the open position by means of a rotatable member 6 on the end of the stay 1, the member 6 being of greater length than breadth and slidable in a horizontal slot 9 of a bracket member 8 secured to the side of the box 5. the slot 9 having an enlarged part 11 and a projection 13 whereby the member 6 is rotated as the lid is raised and turned into a position to hold the lid open. As the lid is being opened the catch member 6 slides lengthwise in the narrow part of the slot 9 until, when it rises in the enlarged part 11 of the slot, it engages the projection 13; this stops the opening movement of the lid, and on lowering the lid the member 6 is turned into a vertical position so as to engage the part 10 of the slot and hold the lid .open, as shown. To close the lid it is lifted to engage the projection 13 and thereby tilt the member 6, as shown in dotted lines. On now lowering the lid the member 6 is rotated to lie on its side, which enables it to pass into the part 9 of the slot for the closure of the lid. The projection 13 may be formed on the lower part of the enlarged part of the slot.
Patent GB-1080020-A (GB)
Title: Recording and reproduction device
Inventor: ELAGIN IGOR VSEVOLODOVICH
IPC: G11B5/49
Filed: 1965-05-06
Abstract: 1,080,020. Magnetic head switching arrangements. MOSKOVSKY ELEKTROTEKHNICHESKY INSTITUT SJAZI. May 6, 1965, No. 19115/65. Heading G5R. A record/reproduce system, Fig. 2, comprises a number of magnetic heads A, B, C which may be selectively brought into use by suitably biasing magnetizing windings 10, 11, 14, 15, 16, 17 and control windings 19. The currents in the magnetizing windings may be adjusted so that an increasing control current neutralizes each in turn to sequentially switch on the heads. Instead of a common control winding individual ones may be employed.
Patent GB-1281484-A (GB)
Title: Laminated product
IPC: D04H13/00
Filed: 1970-04-21
Abstract: 1281484 Laminates CONSOLIDATED PAPER (BAHAMAS) Ltd 21 April 1970 [21 April 1969] 19118/70 Heading B5N A laminated material comprises a first layer 15 of paper material and a second layer 17 of paper material, the said first and second layers -being secured one on each side of a central reinforcing layer, which reinforcing layer has an ultimate elongation of 5 to 30% and is composed of a fibrillated film web of polymeric material, or of two or more fibrillated film webs 5 and 7 of polymeric material bonded together, the or each web having a plurality of substantially parallel filaments 9 connected with adjacent filaments at spaced locations 11 along their length. When the reinforcing layer comprises a single web, the laminated material may be made by securing the paper layers to either side of the web. When the reinforcing layer comprises two or more webs, the laminated material may be made by either: (i) bonding the webs together and simultaneously or subsequently securing the paper layers to the bonded webs or (ii) securing a first paper layer to a web or to two or more webs bonded together, securing a second paper layer to a web or to two or more webs bonded together and then bonding together the exposed faces of the webs to which the first and second paper layers have been secured. The fibrillated film web(s) may be of polyethylene, polypropylene or polyvinyl alcohol, the filaments being connected either directly or by secondary filaments. When a pair of reinforcing webs are used, the filaments of one web are preferably at an angle to the filaments of the other web. In a preferred embodiment a layer formed of spaced elongated strips of highly oriented polymeric material may be included in the laminate. The layers of the laminated material may be adhesively secured, the adhesive being preferably applied by printing at spaced locations or spraying; alternatively, flame lamination may be employed.
Patent GB-530222-A (GB)
Title: Improvements in or relating to devices for the determination of the angular acceleration of bodies
IPC: G01P15/14
Filed: 1939-06-30
Abstract: 530,222. Gyroscopic apparatus. SIEMENS APPARATE UND MASCHINEN GES. June 30, 1939, No. 19154. Convention date, June 30, 1938. [Class 97 (iii)] A device for the determination of angular acceleration of bodies, for example, aircraft, comprises the combination with a gyroscopic rate of turn indicator 1 having the precession axis 3 maintained in a neutral position, of a damping device coupling the precession axis with a measuring element 9 or 15 which for example directly indicates the angular movement to be determined, so mounted as to be movable against the force of a yielding element whereby the coupling force is proportional to the speed of the adjusting movement. As shown in Fig. 1, an arm 7 on the precession axis carries a permanent magnet 8 embracing an eddy current element constituting the pointer 9. The pointer is mounted on a fixed pivotal axis 10 and is controlled by springs 11. In the form shown in Fig. 2, the eddy current element or pointer 15 is pivoted on the arm 13 of the precession axis, the magnet 18 being attached to the aeroplane.
Patent GB-613884-A (GB)
Title: Improvements in or relating to lifting dogs and like appliances
IPC: B66C1/42
Filed: 1946-06-27
Abstract: 613,884. Lifting dogs. SOMERS, Ltd., W., and SOMERS, F. J. June 27, 1946, No. 19183. [Class 78 (iv)] In a lifting device of the kind having a pair of pivoted gripping arms, which are connected by toggle links to a lifting chain and have a wedge bar pivoted on one arm and adapted to engage a catch on the other to hold the arms apart, the wedge bar is connected to means which automatically and alternately each time the lifting appliance is lowered to pick up a " workpiece " and to discharge a " workpiece " respectively raises the bar into position so that it will not engage the catch when the lifting appliance is raised, or lowers the bar so that it will engage the catch when the lifting appliance is raised. The wedge bar 7, Fig. 1, is connected to the rod 16, having a projection 15, Fig. 2, engaging in a continuous cam groove 11 in the cylindrical inner surface of the member 10. Fig. 3 shows a development of the cam groove 11 which has two recesses 12 and 13, each at different heights, such that a relative axial movement between the rod 16 and the member 10 will cause the projection 15 to pass alternately from one recess to the next, so automatically and alternately raising the bar 7 into a position where it will not engage the catch 6 when the appliance is raised with the load, and lowering the bar so that it engages said catch when the appliance is raised without the load. The catch 6 having a shoulder which engages the end of the bar 7 is adjustably mounted on the arm 1 so that the jaws may be spaced to suit the dimensions of any load. A similar adjustment may alternatively be obtained by adjusting the effective length of the bar 7 by means of the screw head 9.
Patent GB-218856-A (GB)
Title: New or improved appliance for playing board games
IPC: A63F3/04
Filed: 1923-07-30
Abstract: 218,856. Selby, J. H. July 30, 1923. Board games.-Apparatus for playing a game consists of a board bearing the pictorial representation of a wireless receiving set and pieces t representing terminals. A track m for the movement of the pieces, which is determined by dice or by a teetotum, is marked on the board and penalties are attached to particular sections of the track.
Patent GB-1270722-A (GB)
Title: A rotary material processing apparatus
IPC: F28F5/06
Filed: 1969-04-16
Abstract: 1,270,722. Mixing apparatus. JOY MFG. CO. 16 April, 1969 [29 April, 1968], No. 19427/69. Heading B1C. [Also in Divisions B8 and F4]  A rotary heat exchange element comprises a stem pipe 22 about which is helically wound an element 32 with a gap between adjacent turns. The element 32 is anchored at both ends to the pipe 22 but is otherwise loose thereon. A hollow helical element 40 with face and back flights 42, 44 is mounted on the element 32 so as to bridge the gap between the turns in fluid-tight manner. Heat exchange fluid can circulate through pipe 46, base 36, the element 40, base 37 and pipe 27. Intermeshing left- and right-hand elements as described above may be used in material processing apparatus, Fig. 1 (not shown). In an alternative construction, (not shown), the helically wound element 32 is replaced by a series of spaced tubular collars, hollow flight elements bridging the gaps in fluid-tight manner. In a further construction, (not shown), discrete screw segments of approximately one turn with gaps between the segments, as disclosed in Specification 1,259,509, may be mounted on the element 32 with bridging pieces between the segments over the uncovered portions of the gap between the turns.
Patent GB-699934-A (GB)
Title: Improved process for producing aluminium by distillation from aluminium alloys or scrap
IPC: C22B21/00
Filed: 1951-08-17
Abstract: 699,934. Distilling aluminium. PECHINEY COMPAGNIE DE PRODUITS CHIMIQUES ET ELECTROMETALLURGIQUES. Aug. 17, 1951 [Aug. 21, 1950; June 28, 1951No. 19436/51. Class 82(i) [Also in Group XI] In a process for directly distilling aluminium from aluminium alloys or scrap at high temperature and under high vacuum, any parts of the apparatus which come, or are liable to come, into contact with aluminium in the liquid state are made of silicon carbide, aluminium carbide or aluminium nitride. Parts coming into contact with aluminium vapour may be made of compact graphite. The process may be applied to the treatment of aluminium-iron or aluminium-iron-silicon combinations under vacuum and at a temperature higher than 1400‹C. In the apparatus shown in Fig. 1 a sloping oblong crucible c made of aluminium nitride is mounted in tapered graphite casing a which serves as an electrical resistor. The alloy to be distilled is placed in vessel c1 at the more highly heated end of the crucible and aluminium collects in vessel c2 which may be cooled by an adjacent cooling body d. Inert gases are removed and vacuum maintained' in the crucible through orifice e. By a heat-protective cover b2 the temperature in the upper part of the crucible is reduced, the vapours condensing therein and flowing downwards over the slab c5 which acts as a reflux ramp giving fractionation of the ascending vapours. The run of the reflux ramp is increased by ribs c6 which constrain the flowing liquid to a tortuous path. In the apparatus shown in Fig. 3 a tapered chamber g of circular cross section is divided into three basins h, i and j at its lower part and is heated by resistors k in its upper part, a partition l protecting the resistors from any sprayed metal. The resistors and basins are displaced away from each other from right to left giving a controlled reduction of temperature in this direction. Raw aluminium alloy is fed to the basin h through inlet g<SP>1</SP> and purified aluminium collects in basin j, condensation being assisted by a circulating water system g<SP>3</SP>. Vacuum is maintained in the apparatus through orifice g<SP>4</SP> protected by baffle g<SP>5</SP>. The arrangement gives a fractional condensation of vapours from the basin h, aluminium tending to carry over to basin j and any impurities which are present in the vapour tending to concentrate in the middle chamber i.
Patent GB-803090-A (GB)
Title: Improvements in wheel construction
IPC: B60B25/12
Filed: 1956-06-25
Abstract: 803,090. Vehicle wheels. FIRESTONE TIRE & RUBBER CO. June 25,1956 [July 6, 1955], No. 19579/56. Class 144 (2). A tubeless tyre wheel rim comprises a rim base portion 24 terminating at one side edge in an integral bead seat 25 and a bead retaining flange 28 and at the other side edge in a radially outwardly directed flange 29, and a detachable clamping 18, having the other bead seat 31 and bead retaining flange 33, which compresses the associated tyre bead 32 between said flange 29 and said other retaining flange 33 to seal the rim parts and lock the associated bead. Fig. 1 shows an arrangement wherein the rim base 24 is welded to a body 'disc 22 which is secured to a hub 11 by nuts 21 which serve also to clamp the ring 18 in position. The ring 18 comprises a radial web 20 with an outer axial step 30 which telescopes within, either snugly or with clearance, the rim base 24 adjacent the flange 29. The step 30 connects into the integral bead seat 31 which is axially narrower than any associated tyre bead 32 to ensure the compression thereof by the flange 29, the latter being of smaller outer diameter than the retaining flanges to permit assembly of the tyre on the rim. Fig. 2 shows an alternative arrangement wherein the detachable clamping ring 41 is separately bolted to the wheel body disc 40. The ring 41 has a full width bead seat 31a, compression of the associated tyre bead 32 being ensured by a rounded axial projection 65 of the rim base flange 29a.