baber/WOPTO huggingface dataset:
Patent GB-1270948-A (GB)
Title: Methine dyes
Inventor: GLOAG ELIZABETH ANNE
IPC: C09B23/10
Filed: 1968-07-25
Abstract: 1,270,948. Sulpholane derivatives. KODAK Ltd. 25 July, 1969 [25 July, 1968], No. 35570/68. Heading C2C. [Also in Divisions C4 and G2-G3] 3,3<SP>1</SP> - Sulpholanyl - 2 - thiothiazolid - 4 - one is prepared by mixing CS 2 , aqueous 3-sulpholanylamine (A) and aqueous NaOH, adding aqueous ClCH 2 CO 2 H, neutralizing with Na 2 CO 3 , and adding H 2 SO 4 . 3,3<SP>1 </SP>- Sulpholanyl - 2 - thio - oxazolid - 4 - one is prepared by reacting S-carbamylmethyl-O- carboxymethyl dithiocarbonate and (A) in the presence of H 2 SO 4 . Benzoin, (A) and P 2 O 5  are heated and the product treated with HCl to form sulpholan-3<SP>1</SP>- yl-(2-one-1,2-diphenylethyl)amino.HCl which is refluxed with acetyl chloride and acetic anhydride to form 4,5-diphenyl-2-methyl-3,3<SP>1</SP>- sulpholanyloxazolium chloride.
Patent GB-816474-A (GB)
Title: Improvements relating to the production of raw slurry for use in the manufacture of cement
Inventor: CLEEMAN JORGEN OLAV
IPC: C04B7/40
Filed: 1954-12-09
Abstract: Raw material, either dry or of water content less than that required for a froth flotation process is divided into two fractions, water is added to one fraction to produce a slurry which is froth flotated, at least a part of the resulting concentrate is mixed either with incoming raw material or the other fraction, this other fraction as such, or mixed with part of the concentrate, but without dewatering giving the required slurry for making cement.  A fine fraction may be separated, by centrifugal separations, from that fraction to be flotated, and mixed, without dewatering either with the raw material or with the other fraction, a fine fraction being also separated from the concentrate from the flotation, and returned to the flotation, the remainder of the concentrate, without dewatering, being mixed with the ether fraction.  Specifications 479,872, 479,891, [both in Group II] 483,822 and 516,603 are referred to.
Patent GB-925267-A (GB)
Title: Improvements in or relating to metal working machine
IPC: B23D21/00
Filed: 1960-10-18
Abstract: 925,267. Cutting girders and like profile bars. URQUHART MACHINE TOOLS Ltd., and C. W. CARR. Jan. 18, 1962 [Oct. 18, 1960], No. 35718/60. Class 83 (4). A shearing machine for angle-section bars which have a rounded corner where the flanges meet comprises a fixed blade and a movable co-operating shearing blade, one of said blades being formed in two parts, each of said parts being profiled to cut part of the rounded corner of the bar. The machine comprises a body plate 12 to which is bolted a triangular fixed blade 24 in which the two parts 26 of the cutting edge include an angle slightly greater than 90 degrees, and a carrierplate 34 which is pivoted at 35 to the body plate and to which is bolted the movable blade 31. This blade comprises two parts 32 and 33 which are cut at 45 degrees to form a mitre joint 39, and which between them include an angle slightly less than 90 degrees. The parts have a straight cutting edge 41 and each has a rounded part 42, these parts together forming a curved cutting edge, corresponding in profile to the rounded corner section of commercial bars. The machine is manually-operated by a handle inserted in an arm 49 which has gear teeth that engage teeth formed on the periphery of the carrier-plate 34.
Patent GB-349546-A (GB)
IPC: B61L3/22
Filed: 1929-11-25
Abstract: 349,546. Railway signalling systems. VEREINIGTE EISENBAHN-SIGNALWERKE GES., Siemensstadt, Berlin. Nov. 25, 1929, No. 36094. Convention date, Nov. 29, 1928. Void [Published under Sect. 91 of the Acts]. [Class 105.] Electrical systems, automatic; track apparatus actuating signals on trains.-The relay 19 of control apparatus carried by the train is energized from the block current, which flows in opposite directions in;the rails of the block, by means of two train coils 16, 17, one arranged over each rail, which are oppositely connected so that the potentials induced therein by the block current in the rails are added. The block current is supplied by trans. formers 11 and flows through the rails to track relays such as 7, 26 unless short-circuited by an occupying vehicle. To prevent a following train running into a train which has stopped at the entrance to any section such as 5, 6, a second control current is fed to a choke 31 to branch into both rails and return through a choke 25 to the supplying transformers 28, 29 ; when the section 5, 6 is occupied the track relay 26 thereof opens a contact 27 so that the previous section 3, 4 is fed with the second control current only up to a choke 24, the transformer 29 being cut out. The second control current in the rails acts on train coils 21, 22 (connected the same way since the second control current flows the same way in both rails) to hold up a relay 23 on the train which therefore drops to cause the actuation of the train apparatus should the rails beyond the intermediate choke 24 not be supplied with this second control current on account of the above described occupation of the block section 5, 6. The windings of the two coils such as 16, 21 associated with each rail may be wound on a common iron core.
Patent GB-316079-A (GB)
Title: Improvements in or relating to picture projecting apparatus
IPC: G03B21/20
Filed: 1928-12-07
Abstract: 316,079. Hammond, P. G. Neave-, and Rigby, P. Dec. 7, 1928. Optical-projection apparatus. - In kinematograph projectors having a reflecting system 2, 6 to divert light to a lantern slide holder 7, a lens 4 or lens combination is provided between the reflectors to prevent the appearance in the picture of a shadow due to the electrodes of the projection lamp. As shown, the lens 4 is double concave and of short focus, and is carried by an arm 9 capable of being turned on a spindle 10 by a handle 11 movable between stops 12, 13. The reflector system &c. may be moved into or out of position automatically with movement of the reflector system into or out of use.
Patent GB-411195-A (GB)
Title: Wire covered with leather
IPC: D04D1/00
Filed: 1932-12-21
Abstract: 411,195. Covering wire with leather. HALDINSTEIN. G. E., 2, Queen Street, Norwich, Norfolk. Dec. 21, 1932, No. 36172. [Class 109.] Wire is ornamented by winding leather strips spirally thereabout and sealing the edges of the strips with adhesive. The wound strips may be flush or overlapping. In making a flush joint the overlapping edge of a strip may be skived. Short ends of leather may be used for the strips, and the strips may be stained or coloured.
Patent GB-347578-A (GB)
Title: Improvements in or relating to pneumatic coal cleaning plants
IPC: B07B4/08
Filed: 1929-11-26
Abstract: 347,578. Pneumatic separating. BURGESS, A. F., 10, New Court, Lincoln's Inn, London.-(Roberts & Schaefer Co. ; 400, North Michigan Avenue, Chicago, U.S.A.) Nov. 26, 1929, No. 36204. [Class 117.] Relates to coal-cleaning plant comprising a number of separate and simultaneously operating pneumatic cleaning tables, and consists in arranging the tables in series with a common air supply and dust collecting device, so that the air used in one table in the series passes to the next in succession. Preferably, between the members of the series are disposed fans which draw the air from the preceding member and deliver it under pressure to the next, and dust collecting chambers may be placed on the pressure side of the fans. The air supply may be supplemented at any stage of the series by adding dust laden air from other kinds of plant such as conveyers or screens, and alternatively, air may be withdrawn direct to the main air conduit. One arrangement of plant is shown in the Figure in which pneumatic cleaning tables A<6>, B<2>, C<3> are connected in series with a fan C<7> and dust arrester A. On the pressure side of each group is disposed a manifold A<5>, B<1>, B<8> preferably served by a fan A<2>, A<12>, B<7>, and connected to the various tables in the group by separate controlled conduits. On the suction side of the groups, the fans are connected by a manifold A<10,> B<6>, C<5> to hoods overlying the tables by which the dust raised in the cleaning operation is confined, the hoods being slightly spaced from the tables and the fans being adapted to draw in air from the atmosphere in addition to that which passes through the tables. Where it is necessary to supplement the air supply to meet the requirements of any group of tables, the air in the dustconfining system of other apparatus D<2> may be led by the conduit D<5> to the pressure side of the corresponding fan. Alternatively a conduit D<6> controlled by a valve D<7> may be used to tap of the air supply when in excess of the requirements. All the dust laden air is led by the conduit C<6> to the dust collector A, and the conduits from other apparatus D, D<2> such as screens and conveyers may connect with the conduit C<6>. In another arrangement the groups of tables may be subdivided into smaller groups arranged in parallel as shown with the single tables C<3> in the Figure. The pressure chambers are preferably of such dimensions as to act as dust collectors and are provided with discharge conveyers.
Patent GB-621823-A (GB)
Title: Heat sealable paper and process of preparing the same
IPC: C09J7/21
Filed: 1946-12-09
Abstract: 621,823. Forming composite paper. TRIGGS, W. W. (Dexter & Sons, Inc., C. H.). Dec. 9, 1946, No. 36359. [Class 96] A dilute suspension of long fibres, e.g. manila hemp, caroa, jute or Indian hemp, or viscose filaments, flows at 6 into a head-box 4 of a longitudinal wire-cloth paper-making machine and the fibres &c. are partly deposited on the wire-cloth 1, at 14; a further dilute suspension, of thermoplastic filaments, e.g. of a vinyl acetate-vinyl chloride copolymer, or cellulose acetate, e.g. 1/16 to # inch long, is introduced at 11 so that the two suspensions intermingle to form an upper ply of mixed long fibres and thermoplastic filaments, the latter greatly predominating at the top of the composite web. A wetting agent, or caustic soda treatment, reduces the liability of the filaments to entrain air. A thin, highly porous paper is formed. Specification 449,118 is referred to.
Patent GB-1389629-A (GB)
Title: Welding filler material
IPC: B23K35/30
Filed: 1973-08-01
Abstract: 1389629 Welding by fusion VEREINIGTE DEUTSCHE METALLWERKE AG 1 Aug 1973 [19 Aug 1972] 36657/73 Heading B3R [Also in Division C7] Copper-nickel sheets or plates are MIG or TIG arc welded using a weld filler material which contains, by weight, 8 to 24% Ni, 0À1 to 2% Fe and/or Mn, 0À05 to 1À5% Nb, less than than 0À5% Si, the balance Cu. The preferred inert gas is argon. It is stated that these weld fillers prevent the formation of oxides normally encountered with titanium-containing fillers.
Patent GB-806956-A (GB)
Title: Improvements relating to electric insulating bushing assemblies
Inventor: PARRISS WALTER HENRY
IPC: H01B17/28
Filed: 1956-11-30
Abstract: 806,956. Insulating bushings. BRITISH THOMSON-HOUSTON CO. Ltd. Nov. 15, 1957 [Nov. 30, 1956], No. 36704/56. Addition to 793,974. Class 36. The bushing assembly disclosed in the parent Specification is modified in that the yieldable layer 2 is discontinuous in its length so that at an intermediate part 3 of the assembly the bushing 5 is applied directly to the conductor 1. The yieldable layer 2 may be insulating, with a conductive coating 4, or conductive as disclosed in Specification 806,955.
Patent GB-1027518-A (GB)
Title: Improvements relating to mineral oils
Inventor: SCHNEIDER NORBERT
IPC: C10M169/04
Filed: 1964-09-08
Abstract: The ageing stability of mineral oils is improved by the addition of at least 0.5% by weight of an aromatic fraction produced in accordance with Specifications 958,859 or 993,927. The aromatic fraction may first be subjected to a catalytic conversion in the presence of hydrogen and a catalyst at 10-30 atmospheres gauge and 400-450 DEG C.  Catalysts specified are cobalt and molybdenum oxides on alumina, cobalt, molybdenum and iron oxides on alumina and tungsten disulphide and nickel sulphide. Transformer oils are specified as the base oils.
Patent GB-962430-A (GB)
Title: Improvements in or relating to propeller driven, fixed-wing convertible aircraft
IPC: B64C29/00
Filed: 1960-10-27
Abstract: 962,430. Convertible aircraft. AEROCONSULTOR A.G. Oct. 27, 1960 [Oct. 28, 1959; July 27, 1960], No. 36876/60. Headings B7G and B7W. A fixed wing aircraft has a fixed driving unit 5 connected by gearing and shafts 4, 6 to propeller units 7a, 7b, 7c which are tiltable about points x; the points x form a triangle which, for normal flight attitudes, lies in a plane above the centre of gravity s of the aircraft, an upwardly extending plumb line y through s intersecting this plane within the triangle. In hovering flight the attitude of the aircraft is controlled by varying the thrust or angle of inclination of the propeller units. In Fig. 5 (not shown), the propeller unit 7a is positioned forward of the leading edge of the wings for such a distance that the downflow of air does not impinge on the wings.
Patent GB-1526306-A (GB)
Title: Elastic surface wave apparatus
IPC: H03H9/64
Filed: 1975-09-09
Abstract: 1526306 Surface wave devices TOKYO SHIBAURA ELECTRIC CO Ltd 9 Sept 1975 [9 Sept 1974] 37000/75 Heading H3U A surfave wave device comprises a Y-cut lithium niobate substrate provided with a surface defined by the X and Z axes having at least one transducer thereon, the axis of the or each transducer being inclined relative to the Z-axis at an angle in the range of 0À5 degrees to 7 degrees; spurious signal components are thereby suppressed. Two such substrates 62, 63, Fig. 8, may be provided on a glass plate 61.
Patent GB-329619-A (GB)
Title: Improvements in illuminating devices
IPC: F21V7/04
Filed: 1928-12-14
Abstract: 329,619. Allom, G. Dec. 14, 1928. Reflectors.-An electric light fitment arranged to give uniform illumination on a flat surface comprises a reflecting surface which reflects substantially all the light received, or a number of such surfaces built up together, each being formed to a continuous unbroken curve in any plane through the axis and arranged to project a truncated conical beam (in the case of the single surface) or a pyramidal beam of light (in the case of the built-up reflector). As illustrated for use for indirect lighting in a rectangular room, the reflector is built up from four trough-shaped reflectors a arranged in box formation and connected by mitred joints as at c. To obtain uniform illumination over a large area a number of fitments are so spaced as to evenly illuminate a series of rectangular patches which cover the whole area. Calculations for obtaining the shape of the unbroken curve of the reflecting surface or surfaces are given.
Patent GB-818332-A (GB)
Title: Improvements in rope dyeing machines
IPC: D06B3/26
Filed: 1956-12-05
Abstract: <PICT:0818332/IV (c)/1> <PICT:0818332/IV (c)/2> <PICT:0818332/IV (c)/3> Fabric is fed into a winch dyeing machine in continuous rope form along a trough through which liquor is circulated to plait or fold the fabric into a perforated compartment at one side of the machine, said trough being given an arcuate movement longitudinally of the machine.  As shown, the machine comprises a vat A having a roller A1 over which fabric is passed from feed roller A2 to driven oval winch A3.  An inclined trough B mounted transversely from side to side of the vat is given an arcuate movement by link b2 actuated by crank b3 driven from winch A3 so that the fabric is folded into perforated compartment a.  Dye liquor is transported by pump B1 from vat A to the upper end of trough B, where fabric enters and is assisted in its movement along the trough to compartment a by the downward flow of dye liquor.  Feed roller A2 may be driven at the same speed as or at a speed slightly greater than that of winch A3. In order to prevent any build up or loss of material, compartment a (Fig. 3) may house a perforated tank a1 pivoted at a6 at one end and supported at the other end by a bracket a2 engaged by arm a3 mounted on spindle a4 and counterbalanced by weight a5, which is adjusted so as to allow a predetermined weight of fabric to be fed into tank a1, after which the free end of the tank is lowered and operates switch b4 to stop feed roller A2 until sufficient fabric has been withdrawn from tank a1 to allow weight a5 to cause the free end of the tank to rise, reclose switch b4 and restart delivery of fabric. Alternatively mechanical means, e.g. a lever and rod mechanism actuated by a variable V-belt drive, may be employed to control feed roller A2.
Patent GB-1092953-A (GB)
Title: Improvements in or relating to transcriptive materials and their preparation
IPC: B41M5/10
Filed: 1964-09-11
Abstract: Transcriptive sheet material that can produce on an underlying surface a positive copy of writing received on an upper surface comprises a carrier of flexible sheet material having on at least part of one surface a colour layer and a top layer covering the colour layer.  The colour layer consists essentially of a mixture of a coloured pigment and a binding agent of high molecular weight and free from waxy, oily and fatty components.  The top layer consists essentially of a saturated aliphatic carboxylic acid which has a molecular weight of from 1000 to 20,000 and an acid number of from 10 to 150, and in which the terminal groups of the main chain of carbon atoms are free from carboxyl groups, and the carboxyl groups are bound either directly to the main chain or to aliphatic side chains having from 1 to 4 carbon atoms.  The carrier may be of paper, woven or non-woven cellulosic fibrous material or a foil or film of a synthetic polymer.  The sheet material may be made by: (a) coating at least a portion of one surface of the carrier with a solution of the mixture of pigment and binding agent, e.g. polyvinyl acetate, in a volatile solvent; (b) drying the layer so formed; (c) applying to the dried layer an aqueous dispersion or solution of the polycarboxylic acid; and (d) drying this last-applied layer at a temperature below the fusion point of the polycarboxylic acid.  The polycarboxylic acids may be made by the oxidation of branched polyethylenes or polypropylenes or by the copolymerization of ethylene and propylene with unsaturated mono- or di-carboxylic acids.  A proportion of the carboxyl groups may be esterified with an alkanol, a polyalkoxyalkanol, or a hydroxypolyalkoxyalkanol to leave a terminal hydroxyl group on the alcohol moiety of the esterified groups.  The polycarboxylic acid may be mixed in the aqueous dispersion with a water-dispersible polymer that may be a copolymer of vinyl chloride and acrylic acid, a copolymer of vinyl chloride, acrylic acid and a vinyl ester, a polymer of an acrylic acid ester, an acrylamide polymer having free carboxyl groups, a polymer of methacrylic acid or of an ester thereof, or a montan wax containing carboxyl groups or esterified carboxyl groups.  A plurality of sheets or endless webs according to the invention may be superposed and fastened together or folded zig-zag to form a writing pad.  Reference has been directed by the Comptroller to Specification 956,767.
Patent GB-1368093-A (GB)
Title: Silica-based vitreous material
IPC: C03C13/00
Filed: 1972-10-17
Abstract: 1368093 Silica-based glass POST OFFICE 17 Oct 1972 [9 Aug 1971] 37271/71 Heading C1M A glass for use in a dielectric optical waveguide, and having a refractive index greater than that of vitreous silica, consists essentially of, in weight per cent: SiO2 95-99À7; ZrO and/or Al2O3 0À3-5. The glass may constitute the core glass, the cladding being vitreous silica. The glass may be made by forming a mixture in gaseous form of a silicon compound and a compound of Al and/or Zr, subjecting the gaseous mixture to a radio frequency plasma discharge 11 (e.g. of plasma temperature about 5000‹ K.), and collecting the glass formed on a target 13 (which may rotate, and have a temperature of 1300-1800‹ C.). The silicon compound may be SiCl4, and the metal compound a bromide or chloride. AlCl3 may be prepared by passing chlorine (from 4) over heated aluminium carbide (2). Alternatively chlorine may be passed over heated zirconium. The silicon compound (from 5), Al or Zr compound, and an inert gas (e.g. argon) may be passed through tube 6, which may be heated to at least 200‹ C., to the region surrounded by discharge coil 12. Argon and an argon/oxygen mixture may be supplied through respective concentric pipes 9 and 10. A rod of the glass formed may be enclosed in a silica tube, and assembly drawn down into the optical waveguide, which may have a core diameter of 1-70 Á and an external diameter of 10-100 Á.
Patent GB-1340471-A (GB)
Title: Static electricity eliminator structure
IPC: H01T19/00
Filed: 1972-08-10
Abstract: 1340471 Discharging static electricity UARCO Inc 10 Aug 1972 [15 Oct 1971] 37346/72 Heading H1X A static eliminator comprises a sandwich 10 of alternate conductive and insulating members, each conductive member 22, 24, 26 having a plurality of discharge points 36 which are staggered relative to the discharge points of adjacent conductive members. To provide a precise control of the spacing between the rows of points 36 the insulating members are slightly curved so that the conductive members are slightly distorted from their original planar form and the points 36 of a conductor are all forced against the same insulating member. The position of the insulating members relative to each other is maintained by a system of steps, platforms and projections 50, 48, 52. The position of each conductive member relative to an insulating member is determined by a tab bent out of the plane of the conductor and engaging a groove 42 in the insulating member.  The sandwich 10 is secured in a channel 54 of a base 12 by a screw 66 thus enabling additional members to be added to the sandwich. In an alternative arrangement (Fig. 4, not shown), the screw 66 is replaced by a fixed abutment.
Patent GB-619720-A (GB)
Title: Improvements in or relating to thermionic electric discharge devices
IPC: H01J19/00
Filed: 1946-12-20
Abstract: 619,720. Making parts of thermionic valves. M-O VALVE CO., Ltd., and WARREN, G. W. Dec. 20, 1946, No. 37499. [Classes 83 (ii) and 83 (iv)] In a method of making a filament for a thermionic discharge device, wire 3 is wound helically around two metal strips 1, Fig. 1, separated by spacers 2, and is soldered thereto, the wires 5 on one side of the helix are then removed and the members 1 are cut transversely as at 6 to form individual wires 7 soldered to end tags 8. The strips 1 are preferably of nickel coated on one side with copper, and the wire is of tungsten. After the wire is wound, the frame 1, 2 is heated to soften the copper coating and so fix the wire to the strips. By selecting spacers 2 having a greater expansion than the wire, the wire is simultaneously placed under tension and any bends or kinks removed. In a modification, the wire is wound around two superposed rectangular frames 11, Fig. 4. After fixing, the wires along each edge are cut to allow the separation of the two frames. The ends 9 are then cut off and the sides of the frames severed transversely. In either form, the transverse cutting of the strips or frames may occur before the cutting of the wire. If it is desired to give the filament an oxide coating, this may be done before the strips or frames are cut.