baber/WOPTO huggingface dataset:
Patent GB-1341068-A (GB)
Title: Images obtained by dye transfer from gelatin reliefs
IPC: G03C7/00
Filed: 1971-09-09
Abstract: 1341068 Imbitition process FUJI PHOTO FILM CO Ltd 9 Sept 1971 [9 Sept 1970] 42209/71 Heading G2C In making coloured images by an imbitition process the final image quality is improved by lowering the absorptive ability to dye of the silvercontaining gelatine relief image. This is achieved by (a) rehalogenating the silver relief image in gelatine, obtained by a tanning development, fixing and wash off process, using a bleaching bath of a halide and a bleaching agent, and (b) by a further tanning development step using pyrogaltol or catechol. The resulting relief is then dyed and dye transferred to a mordanted support. The bleaching/tanning development step may be repeated several times to further improve the contrast. The oxidizing agent in the bleaching bath is potassium ferrocyanide, potassium bichromate, concentrated sulphuric acid or copper sulphate, and the halide potassium bromide or sodium chloride. The silver relief image may be formed in gelatine or in gelatine containing 10% polyvinyl alcohol or polyvinylpyrrolidone. Either the whole or part of an image may be treated in this manner.
Patent GB-1272589-A (GB)
Title: Pot burners
Inventor: LOS PETRUS
IPC: F23D5/04
Filed: 1968-09-05
Abstract: 1,272,589. Pot burners. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 Aug., 1969 [5 Sept., 1968], No. 42216/68. Heading F4T. Air ports, formed in the side walls 2 of a pot burner 1 fed with fuel through a pipe 12, one at an angle of up to 60 degrees (e.g. 45 degrees) to a tangent at their point of entry so as to cause a vortex in the pot which opens into a combustion chamber 4 receiving secondary air from ducts 13. The pot burner 1 is made of steel plate lined with fire brick, and is surrounded by an air chamber 10 which receives air from a pipe 11 and with which the air ports communicate. The combustion chamber 4, is also of steel plate and fire brick, and is fixed to the top of the pot burner 1 and receives secondary air via an air chamber 14, and a pipe 15. The burner is suitable for burning highly viscous or particulate materials such as atactic polypropylene, atactic paraffin, nylon still wastes, or nylon wet powder.
Patent GB-921028-A (GB)
Title: Improvements in or relating to temperature responsive devices
Inventor: HANSON BERNARD STEPHEN
IPC: H01H37/48
Filed: 1960-12-09
Abstract: 921,028. Thermal switches. GRAVINER MANUFACTURING CO. Ltd., and WILKINSON SWORD Ltd. Dec. 8, 1961 [Dec. 9, 1960], No. 42390/60. Class 38 (5). [Also in Group XIII] In a temperature-responsive device employing two or more members having differential thermal expansion, one of the members is of polypropylene. As shown, Fig. 1, one of the members is a metal sheath 10 and the other a polypropylene rod 11 carrying a metal cap 11a engageable with the operating pin 13a of a microswitch 13. The temperature at which switch 13 is actuated may be adjusted by screw 19 engaging a yoke 15 pivoted on the same pivot 14 as microswitch 13 and screwed to the latter at 17. In a modification, Fig. 3, the differential thermal expansion of a polypropylene sheath 21 and a metal rod 22 causes flexing of a leaf spring 23 carrying a contact 27 engageable with a fixed contact 28, the operating temperature being adjustable by screw 26. In a further form, Fig. 4, the case 31 is of polypropylene and the other expansion member is a metal rod 32 adjustably screwed into the case. The rod 32 engages an abutment 38 on the central limb of the microswitch trident 36. Specifications 741,374, 743,784 and 804,363 are referred to.
Patent GB-1013391-A (GB)
Title: Halogen containing anion exchange resins
IPC: B01J41/14
Filed: 1962-11-09
Abstract: An ion exchange resin-interhalogen complex consists of a strong base type anion exchange resin having quaternary groups as its fixed catrionic sites and having adsorbed thereon polybromo-chloride anions which have an average composition such that chlorine predominates and the chloro groups are replaceable by bromide ions, the resin-inter-halogen complex containing bromine and chlorine equivalent to bromine-chloride.  The complex may be prepared by contacting chlorine or bromine with the above anion exchange resin in the bromide or chloride form.  The resin may be prepared by chloromethylating a styrenedivinylbenzene copolymer in bead form and then reacting with a tertiary amine.  A resin containing trimethylbenzyl ammonium groups and the chloride form may be treated with chlorine gas and liquid bromine. Specifications 654,706, 679,850, 679,852, 679,853, 683,400 and 718,308 are referred to.ALSO:An ion exchange resin-interhalogen complex consists of a strong base type anion exchange resin having quaternary groups as its fixed cationic sites and having adsorbed thereon polybromochloride anions which have an average composition such that chlorine predominates and the chloro groups are replaceable by bromide ions, the resin-inter-halogen complex containing bromine and chlorine equivalent to bromine-chloride.  The complex may be prepared by contacting chlorine or bromine with the above anion exchange resin in the bromide or chloride form, and this process may be used to scavenge chlorine from aqueous solutions or the gas phase.  Bromine may be adsorbed from sea-water on the resin by acidifying and adding sufficient chlorine to oxidize bromide to bromine.  Bromine and chlorine may be removed from the resin by reduction with aqueous SO2 to produce an elutable mixture of HCl, HBr and H2SO4.  Specifications 654,706, 679,850, 679,852, 679,853, 683,400 and 718,308 are referred to.
Patent GB-1144427-A (GB)
Title: Helicopter
IPC: B64C27/04
Filed: 1967-09-19
Abstract: 1,144,427. Helicopters. M. L. MIL, and O P. BAKHOV. 19 Sept., 1967, No. 42514/67. Heading B7W. A helicopter comprises a fuselage 1, two wings 2 (port wing not shown) tapered in plan, each being attached to the fuselage at its narrower end 5, and also by a system of struts 7, 8, 9, 15, 16, 17, 19, 20 (which may also support the undercarriage 14), each wing having a main lift rotor, rotating about an axis 3, mounted on the wing, preferably at the outboard end with the motor 4. The wing 2 may be fitted with a flap 18.
Patent GB-1019458-A (GB)
Title: Polyketones
Inventor: GOODMAN ISAAC
IPC: C08G61/12
Filed: 1962-11-12
Abstract: The invention comprises polyketones containing basic, heterocyclic nuclei wherein the keto group is joined on the one hand to a heterocyclic nucleus and on the other hand to an aromatic nucleus of a group containing two aromatic nuclei not condensed with each other. They may contain repeating units of formula <FORM:1019458/C3/1> where X is -O-, -(CH2)n-, -O(CH2)n-O- or a direct linkage, and n is from 1 to 10; the aromatic nuclei may be substituted, e.g. by alkyl or alkoxy groups, or by chlorine or fluorine atoms.  The polyketones may be obtained by reacting a di-acid chloride of a dicarboxylic acid containing a basic heterocyclic nucleus with a compound containing two aromatic nuclei which are not condensed with each other and having at least one position in each nucleus free of substitution. The polyketones are soluble in aqueous acid.  In an example a polymer is obtained by reacting isocinchomeronoyl chloride with diphenyl ether in the presence of aluminium chloride as a catalyst.
Patent GB-1410641-A (GB)
Title: Light degradable thermoplastic moulding composition
IPC: C08K5/00
Filed: 1972-09-14
Abstract: 1410641 Light sensitized oxymethylene polymer composition HOECHST AG 14 Sept 1972 [16 Sept 1971] 42709/72 Heading C3P A composition comprises (a) an oxymethylene polymer, (b) a heat stabilizer and (c) a light sensitizer which is anthrone. Oxidation stabilizers, e.g. bisphenols, may also be present. The compositions are degradable in ultra-violet light and may thus be useful for bags, sheets and sacks. They may be prepared by homogenizing the components in granular or powder form at 150‹ to 250‹ C. In examples, polyformaldehyde and trioxan-ethylene oxide, trioxan-dioxolan and trioxan-ethylene oxide-butanedioldiglycidyl ether copolymers are stabilized with calcium ricinoleate or dicyanodiamide and sensitized with anthrone or (for comparison) with benzophenone or fluorenone.
Patent GB-1062719-A (GB)
Title: Hinge mechanism for seats
Inventor: OLDHAM FRED ALEXANDER MAUGHAM
IPC: B60N2/235
Filed: 1964-10-21
Abstract: 1,062,719. Hinges. HALLAM, SLEIGH & CHESTON Ltd. Aug. 27, 1965 [Oct. 21, 1964], No. 32823/64. Heading E2F. In a hinge for connecting a seat backrest 2 to a seat member 3 and in which the back can be locked in an adjusted position, the locking means comprises a toothed element 15 that is moved by a cam 9 to engage a toothed quadrant 12 the cam being rotated when a handle on a pivot shaft 7 is raised or lowered. A plate 19 secured to the shaft 7 has a notch 20 engaged by a lug 10 on the cam which then rotates when the handle is moved. The plate 19 also has an opening 21, the upper edge 21a of which engages a pin 22 on the element 15 to ensure that the element is drawn downwardly and disengaged from the quadrant 12 when the cam rotates from the position shown in Fig. 1. A spring 23 returns the device to the locked position. The seat may have one locking hinge, or a common shaft may extend across the seat to operate a similar hinge at the other side.
Patent GB-1400051-A (GB)
Title: Arc joint welding
IPC: B23K9/18
Filed: 1972-09-15
Abstract: 1400051 Welding by fusion MESSER GRIESHEIM GmbH 15 Sept 1972 [16 Sept 1971] 42902/72 Heading B3R In submerged-arc welding, three continuously fed electrodes 1, 2, 3 are serially disposed in the line of the weld and form and are consumed in arcs, the leading electrode 1 being connected, together with the workpiece 5, to a D.C. source 14, and the middle and trailing electrodes 2, 3 being connected, together with the workpiece, to A.C. sources, and two additional, D.C. connected, electrodes 18, 19 are continuously fed into, so as to be in continuous short-circuit with, the molten pool in the region of the arc of the middle electrode 2, said additional electrodes 18, 19 being consumed without forming arcs, being melted by resistance heating and by heat from the middle electrode arc. The leading electrode 1 serves to produce the desired penetration shape, the electrodes 2, 18, 19 to deposit material, and the hailing electrode 3 (which is inclined) to finish and widen the seam. The additional electrodes 18, 19 are arranged with opposite polarities so as not to produce substantial magnetic disturbances, being either connected to separate D.C. sources with low open circuit voltage or, as shown, close circuit connected in series with the workpiece and a D.C. source 24. The leading and trailing electrodes 1, 3 should be separated from the middle electrode 2 by sufficient distance to avoid magnetic disturbances. The additionl electrodes 18, 19 may be disposed respectively upstream and downstream or both upstream of the middle electrode 2. As shown, the two A.C. sources for the electrodes 2, 3 are the outputs of two transformers 16, 17 arranged in a Scott connection to a three-phase supply 15. To provide adequate resistance heating of the additional electrodes 18, 19, the latter are fed through contact tube extensions 25, 26 of heatresistant, electrically non-conducting material, e.g. ceramic. Reference has been directed by the Comptroller to Specification 1,151,873.
Patent GB-1560406-A (GB)
Title: Solid solutions of ergot alkaholids in polymers
IPC: A61P25/02
Filed: 1976-10-15
Abstract: The invention relates to a process for the preparation of a solid material composed of ergot peptide alkaloids, their hydrogenated forms or their salts and polyvinylpyrrolidone. The solid material obtained according to the invention can be used for the preparation of pharmaceutical compositions.
Patent GB-1080487-A (GB)
Title: Improvements in or relating to the manufacture of polyurethane materials
Inventor: HAGGIS GEOFFREY ARTHUR
IPC: C08G18/50
Filed: 1964-10-21
Abstract: Polyurethanes are prepared by reacting an organic polyisocyanate with a polyhydroxy compound which is the reaction product of cyanuric acid and an alkylene oxide.  Suitable alkylene oxides are ethylene oxide, 1,2-propylene oxide and 1,2-butylene oxide preferably in amounts to provide reaction products containing from 3 to 200 oxyalkylene units for each cyanuric acid residue.  Conventional aliphatic, cycloaliphatic and aromatic diisocyanates may be used as well as triisocyanates, reaction products of an excess of a diisocyanate with a polyhydric alcohol, uretedione dimers and isocyanurate polymers of diisocyanates and polyisocyanate compositions obtained by the phosgenation of the mixed polyamine reaction products of formaldehyde and aromatic amines.  Foamed polyurethanes may be prepared by incorporating water and/or a low boiling point liquid into the reaction mixture. Suitable low boiling point liquids are hydrocarbons and hydrogenated hydrocarbons having boiling points not exceeding 75 DEG  C.  Rigid foamed materials may be prepared by using as the polyhydroxy compound a mixture containing from 40 to 90% by weight of a reaction product of cyanuric acid and an alkylene oxide having an OH value of 400 to 600 mg.KOH/g. and from 60 to 10% by weight of another polyhydroxy compound having at least three isocyanate-reactive groups in the molecule and a combined hydroxyl and acid value of from 300 to 600 mg.KOH/g. The latter mentioned polyhydroxyl compounds may be conventional polyethers and polyesters. Catalysts such as tertiary amines and organic compounds of tin, iron, manganese and lead may also be included in the polyurethane-forming reaction mixture.  The cyanuric acid may be reacted with an alkylene oxide preferably at temperatures between 100 DEG  C. and 140 DEG  C. in the presence of a basic catalyst and a solvent.  Preferred catalysts are alkali metal hydroxides, calcium hydroxide, sodium carbonate, quaternary ammonium hydroxides and tertiary amines. Suitable solvents are N, N-dimethylformamide, dimethylsulphoxide, formamide and diethyl carbonate.  Mixtures of alkylene oxides may be used or the cyanuric acid may be reacted with the alkylene oxides in more than one stage, a different oxide being used at each stage.ALSO:Oxyalkylation products of cyanuric acid may be prepared by reacting an alkylene oxide with cyanuric acid in the presence of a basic catalyst and a solvent for the cyanuric acid. In examples, cyanuric acid is reacted with 1,2 propylene oxide in N,N-dimethylformamide in the presence of (1) sodium hydroxide, and (2) N,N-dimethyl benzylamine as catalyst.
Patent GB-1365367-A (GB)
Title: Electrophotographic developer material producing method
IPC: G03G9/12
Filed: 1971-09-15
Abstract: 1365367 Pigment-resin particles RANK XEROX Ltd 15 Sept 1971 [17 Sept 1970] 43004/71 Headings C3F C3P and C3R [Also in Division G2] Pigment-resin particles for use in forming an electrostatographic developer are obtained by (A) forming a dispersion of pigment particles in a solution of a resin (1) dissolved in a solvent (a), the resin being such that the resin-pigment particles to be formed are negatively charged, (B) adding a liquid (b), which is a non-solvent for the resin (1) but miscible with solvent (a) to produce a dispersion of pigment/resin (1) particles and (C) adding a resin (2) insoluble in liquid (b), but which can be dissolved in a suitable electrostatographic carrier liquid, to form pigment/resin (1)/resin (2) particles. These particles can then be separated and either dispersed in a carrier liquid which dissolves the resin (2) leaving the pigment/resin (1) particles with negative electric charge or mixed with a small amount of a selective solvent for resin (2) to form a concentrate. In examples, resin (1) is a vinyl chloride copolymer with vinyl acetate and optionally vinyl alcohol or maleic anhydride, polyvinylidene chloride or nitrocellulose and may take the form of a commercially available pigment-resin composite. The pigment is carbon black or an organic pigment. Resin (2) is a rosin- and vegetable oil-modified phenolformaldehyde resin, vegetable oil-modified alkyd resin, epoxy ester resin, polyisobutylene or polystyrene and if a solid is usually added in solution in kerosene. The liquids used are (a) ethyl acetate, methyl ethyl ketone, tetrahydrofuran, toluene, acetone and combinations thereof and (b) isoparaffins containing linseed or cottonseed oil optionally with oleic acid, or C 1 -C 4  alcohols. The carrier liquid which is a selective solvent for resin (2) is kerosene, decalin, cyclohexane, isoparaffins and mixtures thereof.
Patent GB-1169914-A (GB)
Title: Facsimile System
IPC: H04N1/32
Filed: 1966-09-27
Abstract: 1,169,914. Electric synchronizing; control of stepping motors. XEROX CORP. 27 Sept., 1966 [1 Oct., 1965], No. 43080/66. Headings H2J and H2L. [Also in Division G3] The subject-matter of this Specification is identical with that described in Specification 1,169,912, but the claims are concerned with a facsimile receiver adapted to synchronize an internal source of uniformly spaced timing signals with received synchronizing signals, comprising a reversible digital counter, means effective prior to the establishment of synchronization to preset said counter to a first predetermined count, means, effective after the establishment of synchronization of said receiver and a transmitter, for operating said counter on a first direction to increase the count in response to each of said internally generated timing signals and for operating said counter in a direction opposite said first direction to decrease the count in response to each of said synchronizing signals received within a repetitive synchronizing time slot, said time slot having a predetermined time relationship with the pulse repetition frequency of said timing signals, and means responsive to a second predetermined count of said counter for indicating loss of synchronization. The last-mentioned means may be arranged to interrupt the operation of the receiver.
Patent GB-1249972-A (GB)
Title: Improvements in or relating to fluidics devices
Inventor: FITZMAURICE CHARLES MICHAEL
IPC: F15C5/00
Filed: 1967-09-22
Abstract: 1,249,972. Electro-forming. PLESSEY CO. Ltd. Aug.28, 1968 [Sept. 22, 1967], No.43258/67. Headings C7B and C7F. A fluidics device, comprising a body enclosing a shaped flow-conducting cavity with at least one input passage, an output passage and at least one further conduit penetrating the surface of the body and communicating with the cavity, suitable for use at elevated temperatures is produced by deposition of a suitable metal on a thin smooth electro-conductive layer which itself has been produced non-electrically on the surface of a core formed of plastics or wax-like material. Preferably the smooth conductive layer is of electroless Cu or Ni and the walls of the body e.g. of Ni are deposited by electro-plating. Typically a thin layer of electroless Ni is deposited on a core of wax, ABS plastics or epoxy resin, a further layer of Ni is electro-deposited over it from a sulphamate bath and the resultant nickel body is separated from the surface of the core and thereafter heated to 400‹ C. to harden the electroless nickel. If instead the core is rendered conductive with an electroless Cu deposit this is dissolved away e.g. with nitric acid after separation of the nickel body from the core. Instead of electroless coating with metal the core may be sprayed with metal. In a modification the device is made in two stages. First a core structure representing the cavity and passages of the device integral with a backing plate is electroless coated and electroplated on the passage defining surfaces and the adjacent portions of the backing plate, the core and plate are removed leaving a body in which the passages are open at the plane of the backing plate. The passages in this body are then filled with wax to the level of this plane and metal is then deposited as before to form a closure surface and the wax is melted out. Instead of using an electroless deposit, the filling of the passages may be effected with a mixture of 95% Al and 5% wax, the surface being smoothed with abrasive paper.
Patent GB-936996-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J41/04
Filed: 1959-12-22
Abstract: 936,996. Thermionic cathode tubes. TELEFUNKEN G.m.b.H. Dec. 22, 1959 [Dec. 23, 1958], No. 43429/59. Class 39 (1). In an ionization monometer comprising a cathode 6, an ionizing electrode 9 and a collector 10 for collecting positive ions, the cathode 6 being outside the ionizing electrode 9 and the ionizing electrode 9 surrounding the collector, the electrodes are all connected to terminal pins all disposed at the base of the envelope, the pin connected to the collector electrode being surrounded by the pins connected to the cathode and ionizing electrodes, and a portion of the envelope is so formed that the electrical leakage path from the pin connected to the collector to any other pin is longer than the distance between the respective pins. The directly heated filamentary cathode 6 is held taut by a spring 7 secured to pillar 8, the ionizing electrode 9 is a helix and the collector 10 is a wire. The ionizing electrode helix may have flat spiral terminations. The struts or other supports of the ionizing electrode are made integral therewith so that in degassing they can be made incandescent together with the ionizing electrode. A large insulation resistance between the collector 10 and other electrodes is achieved by forming the envelope with a collar having a reentrant portion. There may be two cathodes. The ionization monometer measures the pressure in its own enclosure or in a vessel coupled thereto.
Patent GB-1121876-A (GB)
Title: Improved dispenser
Inventor: NIELD DOUGLAS WALTON
IPC: B65D41/06
Filed: 1965-10-13
Abstract: 1,121,876. Delivering measured quantities of granular material. ARTHUR DOUGLAS Ltd. 23 Sept., 1966 [13 Oct., 1965], No. 43531/65. Heading B8N. A dispenser for delivering measured quantities of granular material such as described in Specification 988,059, comprises a bayonet joint for securing together a holder having an internal hopper and a sleeve secured to a mounting bracket, a funnel being held at the lower end of the sleeve and dispensing draw mechanism is held within the sleeve, the bayonet joint comprising a stud 4 engaging behind a projection 3 in an L-shaped opening 1. The parts may be made of synthetic plastics material.
Patent GB-1472124-A (GB)
Title: Hay-making machines
IPC: A01D43/02
Filed: 1974-04-16
Abstract: 1472124 Mowing and/or hay-making machine C VAN DER LELY NV 16 April 1974 [13 April 1973] 43615/76 Divided out of 1472122 Heading A1F Crop working members such as blades 104 and/or tines 111, 112 are carried by supports 105 which are freely pivotable on a felly 80 about a pivot axis which is tangential to a circle centred on the rotational axis of a rotor as viewed along the rotor axis. In Fig. 7, the pivot axis of a pin 106 is upwardly inclined to both the horizontal and vertical in the direction B of rotation of the rotor. Alternatively the support may be mounted as in Specifications 1472121 or 1472122. Tines 111, 112, formed of a single length of spring steel wire, are carried by the support above the blade in one of several positions e.g. full and dashed lines in Fig. 7. The tines enable haymaking and mowing operations to be combined or, alternatively, when hay-making only, the support 105 acts as a rigid tine and blades 104 are optionally removed to avoid excessive chopping of the cut crop. In Fig. 7 the blades are carried by additional holders, pivoted to supports 105, but readily removed when rotated to the dashed line position. Specification 1472123 should be referred to for further details of the machine construction.