baber/WOPTO huggingface dataset:
Patent GB-941293-A (GB)
Title: Production of phthalic anhydride by catalytic oxidation and a catalyst therefor
Inventor: NONNENMACHER HELMUT
IPC: C07C51/31
Filed: 1962-04-25
Abstract: A catalyst including V2O5, Na2S2O7\t and K2S2O7 on a carrier having special physical properties e.g. SiO2 is used as a fluidised bed in the oxidation of naphthalene or o-xylene to phthalic anhydride. Examples describe the formation also of maleic anhydride and naphthaquinone as by-products.  The reaction is carried out at 250-420 DEG C.ALSO:In a process for the production of phthalic anhydride from o-xylene or from naphthalene by oxidation with gases containing oxygen in molecular form, at a temperature of 250  DEG C.-420  DEG C. by the use of V2O5-alkali pyrosulphate catalysts on carrier material in a fluidized bed there is used a catalyst which comprises V2 O5, Na2 S2 O7 and K2 S2 O7, the melting point of the mixture being lower than that of K2 S2 O7, and a highly porous carrier material, especially silica gel, aluminium phosphate, synthetic or natural silicates and active carbon, having an inner surface of 200-400 sq. metres/gm. and a grain size of 10-3000 microns, the active substance being contained in the pores of the carrier in fused form under the reaction conditions.  Optional catalyst constituents include H2 MoO4, P2 O5 and H2 Wo4.  Examples are given.
Patent GB-1533193-A (GB)
Title: Continuous hot-dip coating of metal strip
IPC: C23C2/00
Filed: 1977-04-15
Abstract: 1533193 Hot dip coating CENTRE DE RECHERCHES METALLURGIQUES 15 April 1977 [15 April 1976 2 Feb 1977] 15723/77 Heading C7F Metal strip e.g. steel strip is hot dipped by passing over a roller partly immersed in the molten metal e.g. Zn, Al or Sn. The roller may be kept free of molten metal by the use of scrapers, brushes or gas jets and the roller may be coated with silicones, silicates, aluminutes or plasma coating.
Patent GB-1501698-A (GB)
Title: Photoelectric smoke detectors
IPC: H01G9/008
Filed: 1975-04-16
Abstract: 1501698 Photo-electric smoke detectors HOCHIKI CORP 16 April 1975 [17 April 1974]  15729/75 Heading G1A A smoke detector comprises an apertured housing 1 defining a detection region A and containing a source 2 and a light detector 3; a shield 4 obstructing the direct light path between the source and the detector; and a screw 5 adjacent the shield for adjusting the volume A 1  of the detection region into which light is projected from the source 2 and the volume A 2  of the detection region from which light impinges on the detector 3. A cylindrical housing 1, Fig. 1, provided with a removable cover 9 defining a gap for admitting smoke, contains a source 2 (e.g. a LED) and a detector 3 arranged so that their optical axes intersect. A shield 4, obstructing the direct path from the source 2 to the detector 3, defines with the housing 1 a detection region A wherein smoke will scatter light towards the detector 3. To adjust the stray light incident upon the detector 3, and the light projected by the source 2 into the detection region A, so as to establish an optimum operating region on the detector characteristic giving maximum signal/noise ratio, a screw 5 adjacent the inner end of the shield 4 serves to vary both the amount of light passing beneath the screw 5 to illuminate a portion A 1  of the detection region A, and that coming from a portion A2 towards the detector 3. The upper end of the screw 5, Fig.2, is provided with tool-engaging means 7 and may be locked with elastomeric compound 8 which also provides dust and moisture protection. The lower end of the screw 5 may be provided with further tool-engaging means (7'), Figs.5-8 (not shown), preferably so shaped that the profile of the end of the screw 5 is not altered with rotation. In another embodiment, Figs. 3 and 4 (not shown), the source (2) and detector (3) are mounted on respective faces of a shield (4') lying in planes defining a reflex angle whereby the source (2) is hidden from the detector (3). The screw (5) is rotatable about an axis parallel and adjacent to the intersection of the planes. An electrical circuit (not illustrated) may be provided with means for adjusting the source current, and with switching means having an adjustable threshold.
Patent GB-1268894-A (GB)
Title: Substituted cinnamamides and compositions containing them
IPC: A61K31/165
Filed: 1970-04-02
Abstract: 1,268,894. Compositions comprising cinnamamide derivatives. LIPHA LYONNAISE INDUSTRIELLE PHARMACEUTIQUE. 2 April, 1970 [2 April, 1969], No. 15749/70. Heading A5B. [Also in Division C2] Pharmaceutical compositions, having muscle relaxant activity and suitable for oral, parenteral or retcal administration contain cinhamamide derivatives of the forumla I in which R 1  and R 3 , which may be the same or different, are each H, C 1-4 alkyl or C 1-4  alkoxy; R 2  is H, halogen, C 1-4  alkyl or C 1-4  alkoxy; R 4  and R 5 , which may be the same or different, each are H or C 1-4  alkyl, R 6  is H, C 1-4  alkyl, C 1-4  hydroxyalkyl, aryl, or C 1-4  alkyl NH CO.O.C 2 H 4 ; R, and R 8 , which may be the same or different are each H, or C 1-4  alkyl or C 1-4  hydroxy alkyl, R 9  is H, C 1-4  alkyl or C 1-4  hydroxyalkyl and R 10  is halogen, OH, C 1-4  hydroxyalkyl, OCONH 2 , OCONHC 1-4  alkyl or OCONH-aryl, with the proviso that when R 1 , R 2  and R 3  are each OCH 3 , R 4  is CH 3  and R 5  to R 9  are H, then R 10  is not OH, in association with pharmaceutical carriers.
Patent GB-1034132-A (GB)
Title: Production of titanium dioxide
Inventor: EVANS ARTHUR WALLACE
IPC: C01G23/07
Filed: 1962-04-25
Abstract: Titanium dioxide is produced by vapour phase oxidation of titanium tetrahalide, particularly tetrachloride, in the presence of a source of thorium.  The latter may be provided as a water-soluble thorium salt, e.g. ThCl4, Th (NO3)4nH2O, or as a thorium compound with high vapour pressure below 1000 DEG  C., e.g. thorium oxide, hydroxide, carbonate, oxalate, sulphate, phosphate or sulphide, the thorium content of which, in the case of batchwise fluidized bed operation, constitutes 0.01-5% of the bed material, or in the case of continuous bed operation or of the introduction of reactants into an empty chamber constitutes 0.001-10% of the theoretical yield of TiO2. The reaction is carried out autothermally at 800-1400 DEG  C. and is initiated by preheating of the reactants, combustion of a fuel in the reactor, or electrical means.  A bed of silica, zirconia, alumina, titania, zircon or mixtures thereof may be used, fluidized by the reactant vapours or nitrogen.  The reactant vapours may include halides of aluminium, zirconium, silicon, antimony or phosphorus as rutilizing-agents, e.g. mixed aluminium and silicon halides as disclosed in Specification 986,660. The titanium dioxide is recovered directly or passed to a second oxidation zone where it acts as nuclei for further deposition of titania at 600 DEG  C. at least (as disclosed in Specification 991,318).
Patent GB-197843-A (GB)
Title: Improvements in portable gramophones
IPC: G11B25/04
Filed: 1922-06-06
Abstract: 197,843. Withers, J. S.., (King Phonograph Co., Ltd.). June 6, 1922. Cases.-The tone-arm 5 of a portable gramophone having an amplifying chamber 8 below the turntable 3, is mounted on a board 4a hinged at its forward edge to the motor-board 4 so that it can be folded down, as shown in Fig. 3, when the lid 2 is closed. A curved tube 7 fixed to the board 4<a> leads from the tone-arm to the amplifying chamber, the rear wall of which is formed with a corresponding hole. The front of the amplifying chamber is provided with hinged shutters 10 adapted to be locked in their closed position by the latches 14 of the lid. Records may be carried in the lid by means of a threaded stem' 16 and a disc-shaped nut.
Patent GB-1501255-A (GB)
Title: Electrical contact clip
IPC: H01R4/48
Filed: 1975-04-17
Abstract: 1501255 Two-part couplings DU PONT DE NEMOURS (NEDERLAND) BV 17 April 1975 15960/75 Heading H2E A contact member for edge connection to a printed circuit board comprises a generally U- shaped body 1 of which one or both arms 2, 3 comprise resilient contacting means with contact surfaces 5, 6 constructed so that on entry of a contact strip or pin between the arms, the foremost contact surface may easily be displaced until the contact strip reaches the rearmost contact surface 6 when the full contact pressure is brought to bear. The foremost contact may be formed as a bent arm to provide extra resilience. The contact is preferably stamped from a sheet of phosphor bronze. Many such contacts may be used together in an insulating block.
Patent GB-895980-A (GB)
Title: Block polymers and process for production thereof
IPC: C08F297/02
Filed: 1959-05-11
Abstract: Block polymers are made by contacting a first monomer selected from (1) butadiene, 2-methyl-butadiene, pentadiene and vinyl substituted aromatic hydrocarbons, or (2) vinyl pyridines, with a catalyst of the formula R(Li)x, wherein R is an aliphatic, cycloaliphatic or aromatic hydrocarbon radical and x is an integer of from 1 to 4, in the presence of a hydrocarbon diluent so as to form a polymer of the selected monomer, and then (A) adding a different monomer selected from the above groups (1) and (2) or from a group (3) comprising vinyl and vinylidene halides, acrylonitrile and esters of acrylic acids when the first monomer is selected from group (1), or (B) adding a different monomer of group (3) when the first monomer is from group (2).  The process may be operated to produce polymers containing more than two blocks and may also be operated to produce polymers in which one block is copolymeric and the other is homopolymeric.  The examples describe the use of n-butyllithium and dilithiostilbene in the preparation of butadiene-styrene, butadiene-acrylonitrile, butadiene-2-vinyl pyridine and isoprene-styrene block polymers. Also described is the curing of such polymers in conventional rubber vulcanizing recipes.  Specifications 852,823 and 856,581 are referred to.
Patent GB-456458-A (GB)
Title: Improvements in or relating to wound clasps
IPC: A61B17/08
Filed: 1935-06-04
Abstract: 456,458. Clips. BRAUN, N., 26, Simon Meisterstrasse, Nippes, and SAMUEL, M., 50, Salierring, both in Cologne, Germany. June 4, 1935, No. 16067. [Class 44] [See also Group VI] A wound-closing clip comprises a pair of levers a, c Fig. 5, of sheet metal having loop ed ends hand pins i struck out fron the metal. The levers are formed on each side with lugs e, f, connected by pivot bolts g, and are extended beyond the lugs as curved portions b, d. The part b is provided with lugs k pivotally supporting a ratchet bar l resting, both in the open and closed positions of the clip, between fingers d<1> formed by centrally slotting the part d. In use the parts h of the open clip are gripped by forceps, Fig. 6, and the clip closed about the wound, the pins i penetrating the flesh. Simultaneously a bar m on the forceps depresses the ratchet bar l, one of the teeth of which engages the edge of the slot in d. To release the clip the parts b, d, are gripped by the forceps whereupon a protuberance n on the forceps trips the ratchet bar. In a modification, for use without forceps, the ratchet catch and the loop ends h are dispensed with and the clip is normally held closed by a coil spring on a pivot bar. The jaws a, c, are cut away in the centre portion of their edges and two pins i are provided on each jaw.
Patent GB-1524473-A (GB)
Title: Process for producing textured polyester multilament yarn
IPC: D02G1/02
Filed: 1976-04-21
Abstract: 1524473 Making textured multifilament yarn from multilobal polyester filaments TEIJIN Ltd 21 April 1976 [8 May 1975 20 Oct 1975] 16123/76 Headings D1F and D1W A process for producing a textured polyester multifilament yarn comprises simultaneously drawing and false-twist texturing an undrawn polyester multifilament yarn composed of polyester filaments each having a multilobal cross-sectional profile having 5 to 10 radial, equi-spaced lobes, the profile being such that the ratio of radii, R 1 /R o , is from 1.05 to 1.16, where R, is the radius of a circle inscribed within the cross-section and R, is the radius of a circle circumscribed about the tips of at least half the number of lobes, the circles being centred on the filament centre. The profile may comprise, Fig. 1, six equal lobes 4, and may have one or more lobes for which the ratio of radii R 2 /R 1  is from 1.05 to 120, where R, is the radius of a circle circumscribed about the tips of the other lobes. For example, the profile of Fig. 4 includes three other lobes 23. The polyester may consist of polyethylene terephthalate, or may contain at least 80% by mole of ethylene terephthalate units, further copolymer components being specified. The polyester may contain a delustering agent, e.g. titanium dioxide, which may be present in an amount of 0.05 to 0.35% by weight. The undrawn filaments may be prepared by meltspinning at a take-up speed of 2500 to 4000 metres/min., may have an elongation at break of 90 to 230%, and may each have a denier of 2.5 to 9.0, and the undrawn yarn may have a denier of 40 to 450. The textured, drawn filaments may each have a denier of 2 to 7, and the textured drawn yarn may have a denior of 30 to 300. The texturing may be by use of a false-twist spindle, or by internal or external friction twister. The texturing may include a heat-setting temperature of 160‹ to 220‹C, and the draw ratio may be 1.3 to 1.8.
Patent GB-951618-A (GB)
Title: Improvements relating to the cleaning of the surfaces of oil tanks and other oil contaminated surfaces
IPC: B08B9/093
Filed: 1960-05-06
Abstract: 951,618. Cleaning tanks. POLYCELL PRODUCTS Ltd., F. J. TREWENT & PROCTOR Ltd., A. TILBY, and H. A. STANBROUGH. May 5, 1961 [May 6, 1960], No. 16143/60. Heading A4F. [Also in Division F2] An oil tank is cleaned by treatment at atmospheric temperature with an emulsion in water of a solvent or solvents for the oil and one or more surface active or emulsifying agents which reduce the oil viscosity and render it capable of being emulsified in water. In the apparatus illustrated a ship's tank is cleaned by spraying through a rotary device or devices 3 an emulsion of salt or fresh water, a solvent, and a surface active agent drawn from a container 12 by a pump 2. The used emulsion is withdrawn from the tank by a pump 5 and returned to the container 12, and flows over a weir 9 to reach the outlet 13 leading to the pump 2 so that sludge is thus allowed to settle at one side of the weir 9 and is withdrawn periodically through an opening 16.
Patent GB-185846-A (GB)
Title: Improvements in machines for the treatment of scrap rubber or other like material known as scrap washers
Filed: 1921-06-13
Abstract: 185,846. Niblock, F. June 13, 1921. Mixing by compression.-In machines for treating rubber &c. of the type described in Specification 113,876, [Class 70, India-rubber &c.], comprising non. circular rotatable drums so mounted that the extreme peripheral paths intersect, a discharge orifice for the cleansed rubber is provided on the side of the casing containing the drums, which may be formed with a helical twist about their axes of rotation. Means are also provided for keeping the draining-grid clear. Mounted in a corrugated casing 1, Fig. 2, with a hopper 5 are non-circular inter-engaging drums 3, 4 geared to rotate at equal speeds in opposite directions, and formed if desired with a helical twist as shown, and consisting either of stepped sections or of a solid casting. A pocket 26 is formed on the side of the casing 1 surrounding the delivery outlet for the rubber which is normally kept closed by a hinged door 27, held closed by a bar 30, and counter-balanced by a weight 29. Slots in the door 27 determine the height of the washing water, excess of which flows through a hole 31 in the pocbet 26. Impurities drain away with the water through a grid 6, Fig. 9, in the bottom of the casing 1 which grid consists of a number of narrow slots 21 and wider slots 22, in which latter are mounted rocking-levers 23, 24 on a shaft 25. The rocking is effected by the rotation of the drums which strike projections on the lever 24. The grid itself may be rocked if desired.
Patent GB-1344810-A (GB)
Title: Burner for gas-fired apparatus
IPC: F23D14/04
Filed: 1972-04-07
Abstract: 1344810 Gas burners JUNKERS & CO GmbH 7 April 1972 [8 April 1971] 16184/72 Heading F4T A burner for a gas-fired apparatus comprises a distributer pipe 11 having elongate burners 10, the pipe being supplied with gas from a gas inlet (14) in a connection member 13 connected to the pipe 11, and air being supplied to the connection member through an air inlet port 174, the port having a sound-damping device 17 connected thereto. The distributer pipe 11 extends transversely of the burners 10 and the connection member 13 is inserted into the underside of the pipe 11 and acts as a support assembly. Gas enters via the inlet (14) into the portion 131 of the connection member and then proceeds through the injector nozzles 15 exchangeably inserted into each end wall of the connection member. The injector nozzles are each aligned with a respective contiguous injector pipe 16 extending in opposite directions within the distributer pipe 11, and in this way communication is established between the portion 131 and the pipe 11. Air is supplied into a primary intake chamber 133 through the inlet 134. The sound-damping device 17 is placed below this inlet and in the embodiment shown comprises a parallelepiped sheet metal housing in which one side wall has a circular air inlet port 172 and the abutting top wall has an air outlet port 174 with a cross-section substantially equal to that of the inlet port. Air flows from the primary intake chamber 133 into the injector pipes round the end of the nozzles 15. The sound-damping device may have a resonant frequency of 1250 Hz.
Patent GB-760330-A (GB)
Title: Improvements in or relating to loom shuttles
Inventor: HODGKINSON WALTER
IPC: D03J5/08
Filed: 1953-06-12
Abstract: 760,330. Loom shuttles. HODGKINSONS SHUTTLES, Ltd. Sept. 13, 1954 [June 12, 1953], No. 16198/53. Class 142 (2). To enable bobbins for automatic bobbinchanging looms to be used in non-automatic looms; a shuttle has a pivoted peg 15 whereby the weaver can exert sufficient leverage to force the rings on the bobbin head into the spring clip 9. The top and bottom edges of the shank of the clip are gripped between top and bottoms jaws of a retainer 11, the assembly being accommodated in an undercut recess 3 in the shuttle. The peg 15 pivots on a bolt 19, and the top jaw of the retainer is slotted at 21 to allow the peg to be turned up for loading. Alternatively, the peg pivots between lugs on the end 11a of the retainer, a screw 22 being then required to hold the assembly in place.
Patent GB-569827-A (GB)
Title: Improvements in or relating to electric terminal assemblies
IPC: H01R9/00
Filed: 1943-10-04
Abstract: 569,827. Mounting terminals; insulators. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and TERRONI, T. B. D. Oct. 4,1943, No. 16205. [Classes 36 and 38 (i)] In a terminal assembly for a condenser, inductance, or like electrical component, of the kind comprising a ceramic bush projecting through a hole in the wall 18 of a hermetically sealed container and having a bore through which the terminal lead 19 passes and metallized surfaces 11, 12 to which the lead and container, respectively, are soldered, strain on the soldered joint at the surface 12 is reduced by a U-shaped locking member 20 bearing on the inner surface of the wall and located in grooves 21, 22. Strain at the soldered surface 11 is avoided by a yoke-shaped terminal tag 13 fitting within grooves 14, 15 in the upper portion of the bush. The tag is retained in position by turning in the portions 16, 17 thereof. The locking member 20 is applied prior to soldering the underside of the bush to the wall 18.
Patent GB-719422-A (GB)
Title: Permanent automatic balancing device
IPC: F16F15/36
Filed: 1952-06-27
Abstract: 719,422. Balancing centrifugal machines. COMPAGNIE ELECTRO-MECANIQUE. June 27, 1952 [July 5, 1951], No. 16209/52. Class 23 [Also 'in Groups XXIII, XXIV and XXVI] An automatic balancing device for a rotary machine having a shaft rotatably mounted in bearings and a plurality of balancing masses movable within a toroidal race concentric with and movable with the shaft has a duct or ducts formed in the shaft and connecting the bearing surface with the toroidal race whereby on the occurrence of a centrifugal rotating face in the shaft due to unbalance thereof a fluid located between the bearing surfaces is forced under pressure to the race to cause displacement of the masses in a direction and to an extent necessary to compensate for the unbalance. As shown in Figs 1 and 2 three balls 1 are movable in a toric race 2 which is partitioned by members 3. Conduits 4 traversing the members 3 terminate in orifices 5 which communicate with the oil film in a bearing 6. If the shaft is out of balance a variable pressure develops in the bearing oil film. If the shaft speed is below critical the oil pressure in the film will act on the appropriate ball or balls to displace them until correct balance prevails. If balance is required at speeds greater than critical the orifices 5 communicate with the oil film at the side of the bearing on the opposite side of the axis of rotation to that shown. Fig. 5 illustrates a means for maintaining the balls 1 in their positions of balance when the shaft speed is low. A resilient ring 13 grips the balls until it expands under centrifugal force due to increasing speed whereupon the balls are free to assume any new position. The ring 13 is split and positively driven by a projection 15 of the housing. Instead of the mechanical locking of the balls hydraulic locking by restriction of the conduits 4 may be used. An oil-operated power relay controlled by the oil film pressure may be utilized to displace the balls when rapid changes in balance occur. A'shaft may have two sets of balls when in axially spaced planes, each set of balls being subjected to the oil film pressures, or to a ratio of those pressures of two shaft bearings. If the shaft is mounted on rolling bearings an auxiliary sleeve bearing is provided for balancing purposes. The auxiliary bearing bush may be allowed to rotate and drive some auxiliary device to ensure that some slip occurs between the bearing and the shaft. The orifices 5 must, however, be oppositely directed to those described for a static bearing. Water or air may b used to actuate the device in place of oil.