baber/WOPTO huggingface dataset:
Patent GB-1353535-A (GB)
Title: Process for the manufacture of fluorine-containing polymers
Inventor: HARTWIMMER R
IPC: C08F10/00
Filed: 1971-07-22
Abstract: 1353535 Fluorocarbon polymers FARBWERKE HOECHST AG 22 July 1971 [25 July 1970] 34371/71 Heading C3P Ethylene is copolymerized with a fluoroolefin in an aqueous acidic medium at 0-25 atmospheres gauge pressure using as catalyst a manganese acid or manganese acid salt or a precursor therefor. In examples ethylene was copolymerized with tetrafluoroethylene, trifluorochloroethylene, trifluorochloroethylene and tetrafluoroethylene, vinyl fluoride and tetrafluoroethylene, or trifluorochloroethylene, or vinylidene fluoride and tetrafluoroethylene or trifluorochloroethylene using as catalyst potassium permanganate or manganate, or permanganic acid dihydrate. The polymerization medium was kept alkaline either by using a buffer such as ammonium chloride, nitrate or perfluorooctanoate or using acidic emulsifiers such as C 6 -C 10  perfluoroalkyl phosphonic acids or perfluorooctanoic acid. Diethylene glycol may be added as a regulator.
Patent GB-1350428-A (GB)
Title: Transparent ceramic body and method for manufacturing same
IPC: C30B29/26
Filed: 1971-07-22
Abstract: 1350428 Transparent MgO-Al 2 O 3  spinel COORS PORCELAIN CO 22 July 1971 [16 Sept 1970] 34465/71 Heading ClA A sintered body comprises 98% MgO-Al 2 O 3  spinel and has a transparency of at least 50% per millimetre in visible light of 0À4-0À8Á wavelength and of at least 60% per millimetre in infra-red radiation of 3À5Á wavelength. The body is manufactured by mixing MgO and Al 2 O 3  with 0À2-5% wt. LiF, the Al 2 O 3  having a particle size <À5Á, calcining the mixture at 800-1100‹ C., cold pressing the calcined material to a compact having a density of at least 2 glcc and firing the compact to sintering temperature. The magnesium oxide may be precalcined at 500‹ C. for 1-4 hrs. The mixture may be dry ball milled and formed into a compact prior to calcining. After calcining the mixture may be first crushed then about 2-5% organic lubricant, e.g. chicken fat or cottonseed oil, may be added and the mixture ball milled until the mean particle size is <0À5Á. The firing may be carried out by first heating in air to 1000-1300‹ C. for 1-5 hrs. then firing in a wet reducing atmosphere of, e.g. wet hydrogen having a dew point of 30-60‹ F., to 1600- 1900‹ C., suitably by heating at 100‹ C./hr. to 1800‹ C. and maintaining the temperature for 24 hrs.
Patent GB-416313-A (GB)
Title: A device for documents of any description generally requiring a photograph
IPC: G03C11/00
Filed: 1932-12-06
Abstract: 416,313. Photographic sensitiva materials. POIRRIER, C. C., 13A, Tottenham Court Road, and ORMONDE, R., 91, Finborough Road, South Kensington, both in London. Dec. 6, 1932, No. 34537. Void [Abridged as open to inspection under Sect. 91 of the Acts, July 27, 1933]. [Class 98 (ii).] Documents of any description to which a photograph is to be attached are produced by applying an area of sensitive emulsion to the document and producing the photograph thereon, e.g. by photographic printing. The document may be of paper, cardboard, parchment, skin, metallic sheets or other material and the emulsion may be applied locally or over the whole surface. The surface of the document may be tinted.
Patent GB-619914-A (GB)
Title: Improvements in or relating to radio and like networks
IPC: H01Q5/48
Filed: 1946-11-21
Abstract: 619,914. Impedance networks. RADIO CORPORATION OF AMERICA. Nov. 21, 1946, No. 34578. Convention date, Nov. 21, 1945. [Class 40 (viii)] [Also in Group XL (c)] An isolation network for feeding two loads 1, 3 simultaneously from two sources 5, 7 without interaction comprises a coaxial slotted line structure 10, so dimensioned that the loads are fed in push-pull from one source and in parallel from the other. A slot 15 is made in the line 10 of length #/4, the loads 1, 3 being connected to the outer conductor of the line section 10, on opposite side of the slot 15. A conducting sleeve 11 surrounds the line 10 and is coupled to the generator 7. The two parts of the outer conductor separated by the slot 15 act as a quarter-wavelength open wire line, short-circuited at the point 17. Thus, current flowing up the inner conductor of the line .9 from generator 5 flows into the load 3. This is balanced by an equal current returning down the inside of the outer conductor of the line 9, so that the loads 1 and 3 are energized in phase opposition by the source 5 without interference with generator 7. The outer conductor of the line section 10 with the sleeve 11 also functions as a coaxial line section short-circuited at its lower end 13, current from generator 7 being applied to this line at 19 to induce voltage along the outside of section 10 and supply in-phase currents to the load resistors 1, 3. The invention may be applied to combined television and sound transmission system (Fig. 2, not shown), employing a turnstile aerial.
Patent GB-1503120-A (GB)
Title: Seat assembly for a vehicle
IPC: B60N2/42
Filed: 1976-08-19
Abstract: 1503120 Vehicle safety seats R SATZINGER 19 Aug 1976 [15 Oct 1975] 34587/76 Heading A4J A vehicle safety seat comprises a backrest 4 with a shoulder belt 8 fastened thereto at an upper corner 7 and extending diagonally to a belt lock 9, the backrest comprising a rectangular frame 5 and a substantially rigid bracing member 6 extending diagonally in the same direction as the belt 8 so that the spring between the fastening points of the belt 8 does not alter on impact. The side 10 of the frame includes a section 11 that deforms on side impact.
Patent GB-1307123-A (GB)
Title: System for medical diagnosis
IPC: A61B5/00
Filed: 1970-07-16
Abstract: 1307123 Electro-medical apparatus PHILIP MORRIS INC 16 July 1970 [22 Aug 1969] 34609/70 Heading G1N For counting the occurance of a body function which causes contraction of a muscle by reflex action, e.g. coughing, a pair of transducers 10, 12, e. g. electrodes, are provided on the skin adjacent a muscle, e.g. the middle trapeziur muscle, and a transducer 14 is provided at a neutral body point, signals resulting from muscle contraction being applied to a differential amplifier 20 whose output is applied to an integrator 26 which provides an output to a counter 30 when the amplifier signal amplitude exceeds a threshold. Filters are provided for the unwanted electrode signals arid EMG signals. To avoid faulty triggering of the counter e. g. when the muscle is contracted by some other body function not being analysed, a second pair of transducers are provided at a muscle which contracts during this other body function, and signals therefrom are applied to a NAND gate together with the signal from the integrator 26, Fig. 2 (not shown).
Patent GB-934007-A (GB)
Title: Tobacco extraction process
IPC: A24B15/26
Filed: 1961-09-27
Abstract: To remove nicotine from tobacco the tobacco is treated with an organic solvent, e.g. methylathyl ketone, the resultant solvent being contacted with brine to remove the nicotine and then recycled for fresh treatment of the tobacco.  Removal of other solvent-soluble constituents from the tobacco such as waxes and flavourings is thereby reduced since the solvent rapidly becomes saturated with such constituents.  The nicotine may be removed from the brine by alkalizing the brine and contacting it with a second organic solvent, e.g. methylethyl ketone, from which the nicotine is removed.  Other suitable organic solvents are methylethyl isobutyl ketone, methylene chloride, trichloroethylene, hexane and isobutanol.  Numerous quantitative examples are given.
Patent GB-1443289-A (GB)
Title: Mouldable compositions comprising polyvinyl nitrate
IPC: F42B5/192
Filed: 1974-08-06
Abstract: 1443289 Combustible compositions SOC NATIONALE DES POUDRES ET EXPLOSIFS 6 Aug 1974 [9 Aug 1973 4 Dec 1973] 34645/74 Heading C1D A mouldable thermoplastic composition comprises polyvinyl nitrate, nitrocellulose and/or polyvinyl acetate, and 2-nitro-diphenylamine. The ingredients may be mixed together with acetone and formed into granules which are moulded into combustible articles, such as cartridge cases, mortar shell ends, and detonator tubes; on combustion these artricles contribute energy for propelling projectiles. Other ingredients which may be added to the composition are cellulose acetate, dinitrotoluene, a phthalate, an ester, camphor, centralite, and acrylonitrile-butadiene-styrene copolymer. A porous nitrocellulose powder prepared from nitrocellulose, diphenylamine and potassium nitrate may be mixed with the composition according to the invention and the mixture moulded into cartridge cases or propellant blocks.
Patent GB-1187480-A (GB)
Title: Cleaning of Apparatus Used in the Manufacture of Polyethylene Terephthalate
Inventor: FISHER JOSEPH THEODORE
IPC: C08F2/00
Filed: 1967-07-27
Abstract: 1,187,480. Cleaning metals. EASTMAN KODAK CO. July 27, 1967 [July 18, 1966], No.34653/67. Heading C7E. Apparatus, e.g. pipes or filters, used in the manufacture of polyethylene terephthalate is cleaned by either (A) contacting with a gas at 275 to 350C., then with a gas at 325 to 525C. and at the same time heating the apparatus to temperatures not greater than 325 and 525C. respectively or (B) contacting with glycol at at least 80C., and then following either (A) or (B) by (i) heating to 205 to 370C. in an oxygen containing atmosphere, and (ii) contacting with an aqueous alkali, pH at least 10, at at least 90C.
Patent GB-1097705-A (GB)
Title: A method of producing a continuous foil strip
IPC: B29C43/22
Filed: 1965-08-13
Abstract: 1,097,705. Moulding thermoplastic strip; laminates and laminating. J. WERENSKIOLD. Aug. 13, 1965, No. 34684/65. Headings B5A and B5N. A continuous strip of plastic material is produced by feeding particles of synthetic thermoplastic material such as a polyvinylidene chloride composition, P.V.C. or polystyrene to the gap 60 between a rotary cylinder 7 and a stationary member 8 and subjecting the material to heat and pressure in the gap whereby it is pressed into a strip which adheres to the cylinder. The cylinder and member are heated, and the particulate material is preheated during its passage from a container 12 by radiant heating means 13. The member 8 is carried on a support 9 and is adjustable relative to the cylinder to vary the gap thence the strip thickness. The strip is removed from the cylinder by a roller 17 to which may be fed a fabric or other backing strip 14 via guide rollers 15; the strips are pressed together between the rollers 7, 17 and the resulting laminate is cooled by being guided over a cooled drum 19. The gap 60 may take the form indicated in Figs. 5 and 6, not shown. In the apparatus of Fig. 7, not shown, after leaving the roller 17 the laminate passes to a pattern roller 21 having recesses 24, Fig. 8, not shown, to which a vacuum is applied via ducts 25 whereby the strip is drawn into the recesses and embossed. The vacuum, which may be applied in stages, has its action assisted by a mechanism comprising shoes 22a which rotate about an axis 22b and are reciprocable so as to bring them into the recesses as the roller 21 rotates.
Patent GB-976208-A (GB)
Title: Improvements in or relating to lock stitch sewing machines
IPC: D05B65/00
Filed: 1963-09-03
Abstract: 976, 208. Sewing machines. G. M. PFAFF A.G. Sept. 3, 1963 [Sept. 18, 1962], No. 34703/63. Heading D1G. A lock-stitch sewing machine comprises a vertical-axis looptaker, a thread-seizing member which is adapted to rock in a horizontal plane above the looptaker and is formed with a pair of fingers situated one above the other and with an aperture therebetween, and a stationary cutter blade adapted, on rocking of said member, to enter said aperture and to sever the thread thereat. As shown, a twinneedle sewing machine has needles 6 co-operating with respective vertical-axis looptakers 15. Associated with the looptakers are respective vertical pivoted shafts 16, 16a carrying at their upper ends thread-seizing arms 17. The free ends of the latter are formed with vertically-spaced fingers 19, 20 an aperture 20 being formed between the fingers, and a further aperture 25 being formed inwardly of the fingers. A crank 26 on the lower end of shaft 16a is connected by a link 27 to one end of a double crank 29 on the lower end of shaft 16, the other end of crank 29 being connected by a link 31 to the armature 33 of an electromagnet 34. On energisation of the latter at the end of a sewing operation, the arms 17 swing above the looptakers, whereby cutter blades 23, carried by fixed blocks 22 enter the respective apertures 21 to sever the needle and bobbin threads thereat, and clamping members 24, carried by the blocks 22 enter the respective apertures 25 to seize the bobbin threads thereat. On de-energisation of magnet 34, a spring 36 returns the arms 17 to their initial positions.
Patent GB-347633-A (GB)
Abstract: 347,633. Fluid-actuated valves. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. Jan. 29, 1930, No. 3029. Convention date, Oct. 8, 1929. [Class 135.] Valves controlled by pilot or relay valves.-A valve controlling the supply of gas to a burner is actuated by the pressure in a pipe supplying a pilot burner under the control of auxiliary valves actuated by hand, electricity, pressure, or temperature. In the form shown in the Figure, the gas valve 7 supplying the burner 4 is carried by a spring-loaded diaphragm 9. The pilot burner 15, which is controlled by a valve 14 actuated by a bimetallic strip 16, is connected by a pipe 12 fitted with a throttle 13 with the inlet side of the main valve and by a pipe 17 fitted with a throttle 22 with the chamber 11 above the diaphragm. The control valves 20, 21 are arranged in pipes 18, 19 connecting the pipes 12, 17. To open the main valve a match is applied to the pilot burner to heat the strip and ignite the flame; this reduces the pressure in the chamber 11 and opens the main valve. Opening either of the valves 20, 21 by hand or automatically equalizes the pressures above and below the diaphragm and allows the spring to close the main valve while leaving the pilot light still burning. In a modification, the chamber 11 is connected to atmosphere through a throttle and the thermally actuated pilot burner valve.
Patent GB-521973-A (GB)
Title: Improved lamp holder for projection apparatus
IPC: G03B21/20
Filed: 1938-11-29
Abstract: 521,973. Two-part couplings; lamp-holders. SOC. DES TELEPHONES ERICSSON. Nov. 29, 1938, No. 34806. Convention date, Nov. 17. [Class 38 (i)] A removable lamp-holder for projection apparatus to facilitate replacement of the lamp comprises a socket 3 to receive the lamp-cap 2 carried by an insulating body 4 having an enlargement 13 that is outside the lamp chamber 9 so that it can be grasped to remove the holder. Guide pins 5 .. 7, asymmetrically arranged, fit into sockets on the chamber 9 and some or all of them form the electrical connections to the lamp-holder. Ventilation passages 14 may be provided for cooling.
Patent GB-1240327-A (GB)
Title: Production of corrosion-resistant unsaturated polyesters and resins therefrom
IPC: C08G63/553
Filed: 1968-07-22
Abstract: 1,240,327. Unsaturated polyesters from 1:3- dimethylolcyclohexane. NIHON GAS KAGAKU KOGYO K.K. 22 'July, 1968 [21 July, 1967], No. 34899/68. Headings C3P and C3R. Unsaturated polyesters of M.W. 1500-3000 and acid numbers below 20 are prepared from (A) at least one α-#-ethenically unsaturated dicarboxylic acid, (B) at least one other dicarboxylic acid, (C) 1,3-cyclohexane dimethanol and optionally (D) at least one other glycol. One mole of acid, comprising 0À2-0À8 moles of A is used per 1À0-1À5 moles of glycol comprising solely (C), or 0À1 to 1.4 moles of (C) and 0À1 to 1.4 moles of (D). In the examples, maleic anhydride was used as component (A); phthalic anhydride, isophthalic acid or carbic anhydride was used as component (C); and ethylene glycol or propylene glycol -was used as component (D). The polyester is mixed with an unsaturated monomer, e.g. styrene, α-methyl styrene, divinyl benzene, a vinyl toluene, methylmethacrylate, diallyl phthalate, diallyl fumarate, diallyl ether or triaryl cyanurate, a catalyst, e.g. a peroxide or an azonitrile compound, and optionally an accelerator and/or inhibitor and the mixture polymerized.
Patent GB-513249-A (GB)
Title: Improvements in electric incandescent lamps
IPC: H01K1/32
Filed: 1937-12-16
Abstract: 513,249. Electric incandescent lamps. NAAMLOOZE VENNOOTSCHAP PHILIP'S' GLOEILAMPENFABRIEKEN. Dec. 16, 1937, No. 34907. Convention date, Dec. 18, 1936. [Class 39 (ii)] An electric incandescent lamp for surface lighting, e.g., for arranging in a cornice to illuminate a ceiling, is provided with an ellipsoidal bulb body which is partly formed as a mirror, the filament 11 being located in a meridian plane of the bulb. The axis D, D of the neck 13 of the bulb in one form makes an angle of more than 75‹, preferably of 90‹, with the major axis of the bulb body. The bulb body is a solid of revolution with a section according to a meridian plane including, as generating lines, two parabolic portions EF,. FG, Fig. 10, whose focal points coincide at the point. L. One half of the bulb is formed as a mirror, the edge of which forms substantially a meridian plane of the bulb. The axes of the parabolic portions EF, FG, are represented by the lines KL, ML, respectively, which make an angle of the order of 80 degrees with the axis CC, which is the axis of revolution of the !bulb body. The poles or top ,ends of the ellipsoid are spherically rounded, being formed by the rotation of circular portions HE, GJ at the ends of the parabolas EF, FG. The filament is so located that the centre of the circle of Which it forms a part lies substantially at the common focal point L of the parabolas, the locus of which is a circle about the axis of revolution. In order to obtain a maximum reflecting area the lamp bulb has a depression 12 in the neck..
Patent GB-389929-A (GB)
Title: Improvements in or relating to cranes and like lifting devices
IPC: B66C23/90
Filed: 1931-12-17
Abstract: 389,929. Jib cranes. MORT, A., 18, Yarborough Road, Lincoln. Dec. 17, 1931, No. 35020. [Class 78 (iv).] A safety-device for indicating when maximum safe-load is on the crane at any radius comprises a scale 12, Fig. 1, pivoted on the jib at 13 and connected by a link 14 with a fixed point 15 so as to move about its pivot when the jib is luffed, and a pointer 11 moved by the deflection of a spring 7 which is mounted between a collar 6 and an abutment 9 on the jib so as to be stressed by the load on the crane hook. The scale 12 may be graduated on the edge as well as the face and the pointer may extend over the edge. The pointer may carry a flexible spring which makes contact with a terminal on the scale to give an audible alarm. The scale may be graduated to show the radius by means of a second pointer fixed on the jib. In a modification, Fig. 2, the head-sheave 2 is mounted on a lever 17 pivoted on the jib at 18 and moved by the load in opposition to a spring 7, and the lever is connected with the pointer by a link 21. The moment of the force 22 due to the load about the point 18 varies with the inclination of the jib, and the pivot 15 of the link 14 is therefore placed nearer the jib-foot. Specification 376,282 is referred to.
Patent GB-1082832-A (GB)
Title: Feeding apparatus for dispensing particulate material
IPC: G01F13/00
Filed: 1964-08-27
Abstract: 1,082,832. Feeding material from hoppers. R. J. RICCIARDI. Aug. 27, 1964 [Sept. 5, 1963], No. 35106/64. Headings B8A and B8S. Material from hopper 12 is vibrated by a crank at 22, the hopper being pivoted at 14 and permitted to flex by a flexible sleeve 58, and falls into compartment 54 from which it is discharged through outlet 60 by inner screw conveyer 64 and outer screw conveyer 68. Screw 68, Fig. 6, is carried by shaft 84 driven from gear 88 and screw 64 is carried by shaft 72 driven at 86, the two drives from motor 52 permitting screw 68 to be driven at a slower speed than the other screw. The crank 22 is also driven from motor 52.
Patent GB-390109-A (GB)
Title: Improvements in or relating to devices for converting electrical oscillations into acoustic vibrations or inversely
IPC: H04R31/00
Filed: 1932-12-12
Abstract: 390,109. Diaphragms. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, 13D, Emmasingel,. Eindhoven, Holland. Dec. 12, 1932, No. 35185.. Convention date, Dec., 23, 1931. [Class 40 (iv).] A diaphragm 6 for loud-speakers and the like has a strip 12 of yielding material, e.g. flannel, secured to its edge, the strip being laid over a chassis rim 15 and clamped in position by a folded ring 13. The strip 12 is preferably bent round the edge 17 of the rim 15, and the edge 17 is preferably bent out of the plane of the rim 15 so that clamps 22 may secure the chassis 9 to a baffle 20, the material 12 serving as an air seal.
Patent GB-1434735-A (GB)
Title: Warning device
IPC: G01C9/06
Filed: 1972-07-27
Abstract: 1434735 Measuring tilt electrically SAUNDERS-ROE DEVELOPMENTS Ltd 26 July 1973 [27 July 1972] 35193/72 Headings G1F and G1N. Apparatus for indicating the tilting of an article e.g. a pontoon, for longer than a predetermined time comprises, in one embodiment a mercury switch 8 which when closed by excess tilting, causes a heater 9 to operate on the bi-metal arm of a switch 7 to open the circuit of a relay 3 after a given time, to place in circuit a warning lamp 5 and a connection 4 to an alarm. Connection to supply 1 is initially established by closing a switch 2 which operates the alarm as a test until push switch 6 is closed to operate the relay 3 and establish a holding circuit for it. A group of mercury switches in lieu of one may be used, Fig. 3 (not shown). In another arrangement, Fig. 2 (not shown), the heater may be in series with the switch 7. In a further arrangement, the  mercury switch or switches are normally closed and a condenser is used to provide by its discharge rate, the delay means, Fig. 4 (not shown).
Patent GB-1511866-A (GB)
Title: Liquid thermosetting coating compositions
IPC: C09D5/46
Filed: 1975-08-26
Abstract: 1511866 Coating composition DULUX AUSTRALIA Ltd 26 Aug 1975 [26 Aug 1974] 35201/75 Headings C3B and C3R A liquid thermosetting coating composition comprises as film-former a blend of: (A) 60-95% by wt. of an acid half-ester of a carboxylic acid anhydride and a polyol which is a diester of a diepoxide, having an epoxide equivalent #300, an autoxidative monocarboxylic fatty acid and a monocarboxylic monohydroxy acid; the acid half-ester is epoxidefree and contains on average 1À5-2À5 OH groups, 1-2 COOH groups and 1-2 autoxidative residues of fatty acids per molecule; and (B) 5-40% by wt. of a cross-linking agent, reactable with OH groups of the half-ester to form a cross-linked network. An exemplified half-ester is prepared by reacting (by wt.) 400 parts of a diglycidyl ether of bisphenol A. having epoxide equivalent 200, 280 parts of safflower/ fatty acid, 300 parts of 12-hydroxystearic acid, in toluene, using as catalyst benzyldimethylamine; the intermediate was then reacted with 100 g. of succinic anhydride to obtain the desired half-ester. Suitable cross-linking agents are: a condensates of a phenol and formaldehyde and a methylol melamine having 4-6 methylol groups per molecule, the methylol groups being fully etherified with methanol or ethanol.
Patent GB-776464-A (GB)
Title: Improvements in or relating to upright pianos
IPC: G10C1/00
Filed: 1954-12-06
Abstract: 776,464. Pianofortes. DANEMANN & CO., Ltd., W., and WOODGATE, H. E. Dec. 5, 1955 [Dec. 6, 1954], No. 35256/54. Class 88 (2). To provide stability, the iron frame D of a piano is tilted forward from the vertical so that the top is displaced toward the keyboard B. The front and back walls A and E are also tiled as shown.