baber/WOPTO huggingface dataset:
Patent GB-616134-A (GB)
Title: Improvements in and relating to polymers and copolymers of 2-vinylfluorene
IPC: C07C13/567
Filed: 1946-08-28
Abstract: 2-vinylfluorene is polymerized by heating, exposure to ultra-violet light, or on standing for a prolonged period, in the solid state, or in solution, emulsion, or suspension.  Suitable catalysts are oxygen, ozone, ozonides, hydrogen, peroxide; hydrochloric, hydrofluoric and sulphuric acids; aluminium chloride, boron fluoride and its ether complex, stannic chloride, antimony pentachloride; chlorine, bromine; benzoyl, acetyl, stearyl and lauryl peroxides, tert-butyl hydroperoxide, sodium and barium peroxides, persulphates, perborates, perchlorates; tert-butyl perbenzoate; carbon black, finely divided silica and clay, metallic powders.  Copolymers may be made with acrylonitrile, methacrylonitrile, acrylamide, methacrylamide; methyl, ethyl, propyl, butyl, amyl, benzyl, allyl, methallyl and p-chlorobenzyl acrylates, methyl, benzyl, hexyl and allyl methacrylates; ethacrylates and propacrylates; methyl and propyl a -chloroacrylates, ethyl a -bromoacrylate; ethylene diacrylate, diethylene dimethacrylate, glyceryl triacrylate; styrene, methylstyrenes, chloromethylstyrenes, p-chlorostyrene, di- and tri-chlorostyrenes; divinylbenzene, chlorodivinylbenzenes; vinyl methyl and vinyl ethyl ethers; divinyl ether; vinyl acetate, propionate and butyrate; vinyl chloride and bromide; vinylidene chloride; methylene methyl and methylene ethyl malonates; diethyl, diethylene diallyl and dimethallyl itaconates; diethyl and dimethallyl maleates; dimethyl and diallyl fumarates; diallyl and dimethallyl pathalates; diallyl citraconate; divinyl diphenyl; vinyl methyl ketone; butadiene, piperylene, cyclopentadiene, hexadiene-1,5, octadiene-1,4, chloroprene, 2-cyano- and 2,3-dimethyl butadiene; vinyl-naphthalenes and chlorovinyl-naphthalenes; triallyl citrate, aconitate, tricarballylate and phosphate; ethylene; chlorofluoroethylenes; indene; acenaphthylene; 2-vinyl dibenzofuran; maleic anhydride; unsaturated alkyl resins, e.g. diethylene glycol maleate, citraconate, glyceryl fumarate, ethylene glycol itaconate and triethylene glycol; there may be added plasticizers, e.g. diphenyl, terphenyl, fluorene, 2-ethylfluorene, phenanthrene, dibutyl phthalate, dihexyl sebacate, ethyl phthalate, ethyl glycollate, tricresyl phosphate, o-nitrodiphenyl, castor oil, raw or blown, amyl naphthalenes, a diphenyl-diphenylene oxide eutectic, dihydronaphthalene dimer and fillers, e.g. metal oxides, asbestos, talc, mica, quartz, barytes, glass fibres, wood flour, a -cellulose, linen rags, flake aluminium, waxes, oils.  The polymers may be chlorinated, sulphonated or nitrated.  Low molecular weight polymers may be separated by dissolving in benzene, toluene, chlorbenzene or trichlorethylene and precipitating with methyl or ethyl alcohols, acetone, methyl ethyl ketone or petroleum ether.  The product may be used in electric insulation and for making films.  Specification 616,073, [Group IV (b)], is referred to.
Patent GB-1004740-A (GB)
Title: Improvements in and relating to metal pouring ladle nozzle stopper
Inventor: WALKER JOHN
IPC: B22D41/16
Filed: 1962-07-05
Abstract: 1,004,740. Stoppers for ladle nozzles. MORGANITE RESEARCH AND DEVELOPMENT Ltd. June 27, 1963 [July 5, 1962], No. 25844/62. Heading F4B. A metal-pouring ladle nozzle stopper comprises a head 2, junction sleeve 5 and sleeve components 12, having spigot and socket engagement, carried by and enclosing a metal rod 11, which has an end flange 9. The junction sleeve 5 has a screw-threaded socket 4 engaging the head spigot 3 and a stepped bore 8 to support the head and sleeve components on the flange 9. The washer 14, fixed by pin 15, provides a bearing face between the mating surfaces of the head spigot and flange, and a supplementary head/flange connection may be provided through the pin extension 17. The shoulder 6 of the junction sleeve may act as a subsidiary obturator for the nozzle 1 by seating on nozzle ring 7. The head spigot may be constructed as a separate unit from the head proper, and the connection to the junction sleeve may be other than screw-threaded.
Patent GB-781633-A (GB)
Title: Improvements in the manufacture of permanent magnets from sintered mixtures of oxides
IPC: C04B35/26
Filed: 1955-09-12
Abstract: 781,633. Moulding magnets. SOC. AUDAX. Sept. 12, 1955 [Nov. 9, 1954; May 23, 1955], No. 25969/55. Class 87(2). [Also in Group XXXV] In making an annular permanent magnet with radial grain orientation as shown in Fig. 1, a sintered mixture of oxides of iron, of chromium and of an alkaline earth metal such as barium' or of lead is powdered, mixed with water and placed in an annular mould formed by the space between magnetic ring 6 and pole 7. The water is extracted through holes 9 covered with a filter cloth in a non-magnetic plate 8 forming the base of the mould, space 11 between plate 8 and non- magnetic dished plate 10, and passage 13 through magnetic post 2, to which is connected a vacuum pump. Pressure is applied through non-magnetic piston 28. The grains are orientated in the liquid phase by a radial magnetic field developed by coil 1 and passing through a magnetic circuit comprising post 2, base 4, cylinder 3, lid 5, ring 6 and the oxide mixture. After its removal with members 6, 7 the mixture is partially dried, this assembly is replaced and the mixture again compressed. A suitable apparatus for producing parallel grain orientation in a pressed magnet having the shape of a parallel piped or disc is described, Figs. 3, 4 (not shown) Specification 708,127 [Group XXXV] is referred to.
Patent GB-1427619-A (GB)
Title: Upholsery cushion with a textile covering and a foam core and  a process for tis production nuclear reactors
IPC: B29C39/38
Filed: 1973-06-01
Abstract: 1427619 Cushions BAYER A G 1 June 1973 [3 June 1972] 26217/73 Heading A4M [Also in Divisions B4-5 and D1-2] An upholstery cushion comprising an outer stretchable textile cover 1, an elastomeric sealing layer 2 and a core 3 of foam material, is produced by foaming the core material in a mould lined by the cover and layer, the temperature of the foam reaction adjacent the sealing layer 2 being low enough to prevent reduction of the elasticity of the cover and layer. The textile cover may be a knit fabric of textured continuous yarns based on polyamide and/or polyester, and the knit fabric may be double-surface circular knit or flat-knit or a one-surface velour-like knit or a single jersey fabric. Or the cover may be a flock fabric, the sealing layer consisting of an elastomer film stretched during flocking, with a layer of adhesion promoter in which flock fibres based on polyamide and/or polyester and/or polyacrylonitrile are anchored. The sealing layer may be of a thermoplastic polyurethane elastomer or a layer of plasticized P.V.C. coated with a layer of polyurethane solution on the foam side, or of a latex based on acrylic esters or methacrylic esters or their copolymers with vinyl compounds. Coating can be carried out with a solution, or a granulate of thermoplastic elastomers may be applied to the textile on a melting calendar. The sealing layer may be a film joined to the textile by flame-lamination. A film of soft polyurethane foam, e.g. polyether urethane (59), may he interposed between the textile layer and the sealing layer and joined to both by flame-lamination. The cushion may be produced in a vacuum mould. In one embodiment the textile cover is a textured polyester yarn, the sealing layer consists of a 20% solution of a polyurethane elastomer in dimethyl formamide applied in two layers to the fabric by the reverse-coating process, and the foam core is produced from an organic polyol, an isocyanate, an expanding agent, a catalyst and a siloxane block copolymer as foam stabilizer.
Patent GB-901332-A (GB)
Title: Improvements in the catalytic pressure refining of liquid hydrocarbon fractions
Inventor: HIEMENZ WILHELM
IPC: C10G65/04
Filed: 1960-07-28
Abstract: <PICT:0901332/III/1> Petroleum hydrocarbons or liquid hydrocarbon fractions obtained from solid or liquid fuels by coking, low temperature carbonization, or gasification, are freed from sulphur-, oxygen- or nitrogencontaining impurities by a catalytic two-stage treatment in which a gas containing less than 60% by volume of hydrogen, e.g. coke oven gas, municipal gas, water gas, or refinery waste gas, is used in the first stage, and a gas containing at least 90% by volume, preferably 95% by volume or more, of hydrogen is used in the second stage.  The catalyst is suitably one or more oxides, sulphides, phosphates or halides of metals of Group V-VIII of the Periodic Table, preferably of Group V and VI, as well as iron, cobalt and nickel; these may be applied to such carriers as alumina, silicic acid, silicates, titanium, zirconium, cerium or zinc oxides, or magnesia, which may have been pretreated with steam, hydrogen halides, or boron compounds.  If required, the catalysts may be different for the two stages.  As shown, the raw material 1 is compressed to the reaction pressure, which is generally below 100 atmospheres and most preferably 10-50 atmospheres, wholly or partly vaporized alone or together with hydrogencontaining gas 2, heated to the reaction temperature, which is generally 300-425 DEG  C., and passed over the catalyst of the first stage 3.  The product passes to stripper 4 and the hydrogen-containing gas is recirculated by line 2. Before passing to the catalyst of the second stage 7, the product is decompressed in vessel 5, and then again compressed, heated, and mixed with hydrogen 6.  The refined product is stripped in 8 and the gas recirculated to 6.  In both stages, hydrogen is added at 9 and the pressure is controlled by decompression at 10 by means of pump 11.  The gas in the first stage is suitably used in amounts of 500-200 c. metres/metric ton raw material and in the second stage in amounts of 300-1500 c. metres/metric ton.  Especially suitable starting materials are crude benzenes, highly unsaturated light oils obtained by cracking oils and tars above 500 DEG  C. and the aromatic-rich light oils obtained in the coking and gasification of solid fuels.
Patent GB-519058-A (GB)
Title: Arrangement for producing biassing potentials in circuits incorporating electron discharge valves
IPC: H03D7/18
Filed: 1938-06-07
Abstract: 519,058. Thermionic valve circuits. KRAMOLIN, L. L. DE. June 7, 1938, No. 26330/39. Divided out of 513,626, under which a Specification was laid open to inspection under Sect. 91 of the Acts, June 23, 1938. [Class 40 (v)] Grid bias potential is derived by means which involve substantially no additional expenditure of current or voltage from the high tension source. Part of the output of a high frequency generator, e.g., the local oscillator of a superheterodyne receiver, may be rectified and used as bias, means being provided to prevent fluctuations of voltage with variation of the oscillator voltage. The Figure shows an arrangement in which a positive bias is applied to the grid 6 of the valve H through decoupling means O and a potentiometer P which may be varied automatically or by manual means to vary the amplifier gain or feedback and so the band width passed. The output of the oscillator valve B is limited by biassed diode D and the tuning is controlled by the diode R and the valve U as described in Specification 513,626. When the source of grid bias is an oscillator the bias may be maintained constant by a current or voltage limiting device which may be a biassed rectifier. The rectifier for the high frequency oscillation may be a diode contained in the oscillator valve envelope. The bias voltage may be fed through decoupling means and be used to charge secondary elements which may assist in the decoupling and comprise electrolytic condensers. The desired potential may be obtained by transformation of the high frequency oscillations. U.S.A. Specification 2,048,758 is referred to. The Specification as open to inspection under Sect. 91 describes also the valve and tuning coil construction and remote tuning and volume control arrangements described in Specification 513,626. This subject-matter does not appear in the Specification as accepted.
Patent GB-1184876-A (GB)
Title: Alkanesulfonate and alpha-Toluenesulfonate Pesticides and process of making same
IPC: C07D215/32
Filed: 1968-05-31
Abstract: 1,184,876. Pesticides containing pyridyl and quinolyl sulphonates. INTERNATIONAL MINERALS & CHEMICAL CORP. 31 May, 1968 [14 June, 1967], No. 26348/68. Heading A5E. [Also in Division C2] Pesticidal compositions having insecticidal and nematodicidal activities contain compounds of the formula I or II: wherein X is halogen; R is an alkyl or haloalkyl radical having 1 to 18 carbon atoms, benzyl or substituted benzyl radical having on the ring a halo, nitro, cyano or methyl substituent; R' is methyl or ethyl; m is 1, 2 or 3, n is 1 or 2 and o is 0, 1 and 2, inclusive provided that in formula I there is at least one -OSO 2 R group in the two or three position on the ring and m, n and o do not total more than 5, in association with a suitable inert solid carrier. The compounds may also be mixed, in finely divided form, with the soil to be treated. Inert carriers include talc, mica and clays. The compounds may also be dissolved in a suitable solvent and then mixed with a solid diluent and evaporating the solvent. They may also be applied to the soil in a solution, dispersion or emulsion, in a suitable inert liquid medium e.g. water, or in a suitable water-immiscible organic solvent. The roots of plants may be dipped in a solution, dispersion or emulsion of these compounds during transplantation.
Patent GB-1420550-A (GB)
Title: Semiconductor processing furnaces
IPC: H01L21/22
Filed: 1974-06-14
Abstract: 1420550 Semi-conductor processing furnaces INTERNATIONAL BUSINESS MACHINES CORP 14 June 1974 [29 June 1973] 26405/74 Heading F4B A furnace for processing semi-conductor devices 13 comprises a housing 1 with insulating material 28 through which extends a radiant heat processing tube 2 defining within a high temperature chamber 3. The tube has a gas inlet 6 and baffles 7, 10 and 16 control the flow of processing gas through the tube to the exhaust outlets 17. Exhaust of the gases may be assisted by a back pressure generated by an inert gas injected through the tube 20 and inlet ports 18. Radiant heat diffuser plates 14 on top and below tube 2 heat the semi-conductor devices positioned on the support 12 midway between the top and bottom of the chamber 3. The tube 2 and support plate 12 are dimensioned so that the ratio of the width of the tube to the height of the space between the top of the tube and a semi-conductor device is between 7 and 30. The support plate 12 is handled by a pusher unit 43 with handle 46. In a modified embodiment the processing gases are discharged to atmosphere from the loading end of the reactor tube (2A), Fig. 2 (not shown), and tubes 17, 18 and 20 are deleted.
Patent GB-738241-A (GB)
Title: Apparatus for the electrical precipitation of suspended particles from gaseous fluids
IPC: B03C3/86
Filed: 1953-09-25
Abstract: 738,241. Electrostatic filters. METALLGES. AKT.-GES. Sept. 25, 1953 [Oct. 23, 1952], No. 26495/53. Class 39 (1). In an electrostatic precipitator of the plate type, the discharge electrodes are mounted in rectangular frames 2 arranged one behind the other and carried on two sides by cross-pieces 4, 10 from which they are readily detachable. The crosspieces are rigidly suspended from the insulators 6 by rods 7, 9. The discharge electrodes are wires stretched between upper and lower U-shaped members of the frames and are maintained taut by springs. The rods 7 pass through the insulators 60 and are carried from the tops of the insulators by springs. Sprinkling devices are provided above the electrode assembly. Several assemblies with fields of differing strengths may be mounted in line.
Patent GB-601765-A (GB)
Title: Door latch
IPC: E05B3/08
Filed: 1945-10-11
Abstract: 601,765. Door latches. TRUNINGER, A. Oct. 11, 1945, No. 26559. [Class 44] In a door latch having a square section handle spindle made in two parts relatively slidable to provide adjustment, a follower consisting of two parts drawn together by a screw is used to clamp the two parts of the spindle together. The parts 13, 14 of the spindle, secured respectively to the handles 15, 16 are over most of their length of triangular section, overlapped to form a square section, with the edges of the diagonal chamfered so as to form grooves at opposite corners of the square, the chamfered edges being also serrated. The follower consists of two interfitting parts 1, 2, drawn together by means of a screw 9, and forming a square opening provided with internally projecting wedges 11, 12 which fit into the grooves in the spindle. A hole 22 in the latch casing allows the screw 9 to be tightened after the latch is fitted.
Patent GB-330193-A (GB)
Title: Improvements in mattresses
IPC: A47C23/30
Filed: 1929-09-02
Abstract: 330,193. Krieger, H. Sept. 2, 1929. No Patent granted (Sealing fee not paid). Mattresses. - An anti-sagging device for a spring mattress comprises transverse stretchers h, i, and wire bows d, collapsibly linked to the spring surface, as at e, said bows bearing on the members h when in the position of use. The bows d are preferably detachably mounted in eyes e of rings c, and have notches k to engage corresponding bends in the members h.
Patent GB-1214881-A (GB)
Title: Service aid for colour television receiver
Inventor: WILLIS DONALD HENRY
IPC: H04N17/04
Filed: 1968-06-04
Abstract: 1,214,881. Colour television. R. C. A. CORPORATION. 4 June, 1968 [5 June, 1967], No. 26638/68. Heading H4F. To facilitate the setting-up of a colour television receiver employing a three gun shadow mask tube as regards purity adjustment and colour temperature adjustment, the receiver is provided with switching means having three positions. In its first position the luminance and blanking components are coupled to the display tube for normal operation. In its second position, for colour temperature adjustment without interference from broadcast material or undesirable scanning retrace lines, only the blanking component is coupled to the display tube, the luminance component being substituted by a reference voltage and the vertical deflection means being rendered non- operative. With the switch in its second position the automatic gain control means of the receiver is arranged to maintain the receiving and amplifying means of the receiver in cutoff condition for all received signal levels whereby the luminance and chrominance-representative components are not derived from the received composite television signal i.e. the a.g.c. is maintained in a fixed output operating condition. In its third position for purity adjustment, blanking components are applied to the receiver, the deflection means are operative and the a.g.c. is maintained in a fixed output operating condition. Thus with the switch in its third position a blank raster (i.e. no image) of substantially uniform brightness is produced on the display screen. For the purity adjustment the blue and green electron guns are adusted to cut-off by means of the screen grid controls and with the centre convergence correctly adjusted the purity magnet assembly and deflection yoke of the display tube are adjusted to obtain a uniform red field, the brightness may also be adjusted. Upon completion of the purity adjustment the switch is placed in its second position for adjustment of the blue and green screen grid controls until a white line is displayed for proper colour temperature.
Patent GB-616410-A (GB)
Title: A new or improved hand drill
IPC: B23B45/06
Filed: 1946-09-05
Abstract: 616,410. Hand drills. GARRINGTON & SONS, Ltd., J., and SHARMAN, J. C. Sept. 5, 1946, No. 26652. [Class 83 (iii)] The chuck spindle is fitted with two gearwheels, either of which can be clutched thereto, the driving member comprising gears of different diameter in mesh with the driven gears. The casing 10 is hollow to contain drills, a removable cover 45 being provided, and is furnished with a boss 31 in which is mounted a spindle 32 for the driving-wheel. The latter is fitted with two gears 33, 34 in mesh with two gears 15, 16 on the chuck spindle 12 to which they can be clutched by a sliding clutch 17 operated by a lever 25 held resiliently in either of its operative positions.
Patent GB-608617-A (GB)
Title: Improvements in or relating to a printing plate clamping mechanism for rotary printing machines
IPC: B41F27/12
Filed: 1945-10-12
Abstract: 608,617. Printing-surfaces. HARRIS-SEYBOLD-POTTER CO. Oct. 12, 1945, No. 26669. Convention date, Oct. 9, 1942. [Class 100(ii)] A device for clamping a printing-plate on to one member of a printing- couple and particularly for clamping and tensioning a plate on a lithographic or gravure printing- cylinder, comprises a housing 13, Fig. 4, having a groove 25 therein to receive the end of a plate 12 and formed with oppositely-disposed walls 26, 26<1>, and a bar 27 in the groove adapted to be rocked 'to grip or release the plate 12, the plate, end being wedged between the wall 26 and the bar 27 backed by the wall 26<1> when the bar is rocked in one direction and released when the bar is rocked in the opposite direction. The printing-cylinder 10, Fig. 1, has the usual gap 11 in which are two housings 13, 14, one for each end of the plate 12 the former extending the full length of the cylinder and the latter is in three sections. The bars 27 may be turned by a pin wrench or by means of screws 40 each of which engages a screw-threaded sleeve 43, Fig. 4, having lateral wings 46 engaging a slot 47 in a bar 27. The screw 40 advances until its end 49 meets the wall 38 of the gap 11 whereupon the sleeve 43 moves to the right to rock the bar 27 into clamping position: further rotation of the screw causes the housing 13, or one of the housings 14, to slide bodily to tension the plate 12. The housings are returned to normal position by springs 55 and the bars 27 by springs 32. Lateral adjustment of the plate 12 is effected by screws 56, 57 engaging the ends of the housing 13 and the ends of the two end housings 14 respectively: the housings 13, 14 are prevented from rising by cover plates 15, 16. In a modification, Fig. 10, a cylindrical clamping-bar 75 is provided mounted in a groove 96 in a housing 71 and rocked about a line joining points 79 on pins 76 by hand or by means of a screw 83 so as to clamp the end of the plate against an inclined surface 82. The bar 75 is held in a slot 85 in a slide 84 having notches 87, 88 in one of which a spring-pressed detent 89 engages in each position of the bar 75.
Patent GB-191170-A (GB)
Title: Improvements in or relating to advertising devices
IPC: B42D15/08
Filed: 1921-10-08
Abstract: 191,170. Macpherson, M. H. Oct. 8, 1921. Envelopes.-A postal or like envelope is provided with advertising means the presence of which is unknown to the sender. The advertisements are contained on the middle part of a lining 6, Fig. 2, which is gummed to the envelope blank, Fig. 1, at the areas shown cross-hatched. The lining is inserted at the sealing flap 2, and it is intended that the recipient shall open the envelope at the flap 4, when the lining will be withdrawn surrounding the enclosure. The lining 6 is weakened along the lines 10, 11 to facilitate severance of the advertisement-bearing portion from the gummed parts. The lines 10, 11 may be parallel to the edges 9. To induce the recipient to open the envelope at the flap 4, the sealing gum 12 on the flap 2, which gum is preferably located on the lining 6, is carried the whole length of the flap edges, while the gum 13 on the flap 4 covers a part only of the edges. Further, a ripping cord may be located at the fold of the flap 4, and a rectangle 14 for a stamp or a stamp itself be printed on the face of the envelope in such a position as to suggest that the flap 4 is at the top of the envelope.