baber/WOPTO huggingface dataset:
Patent GB-206726-A (GB)
Title: Improvements in chain stitch sewing machines
IPC: D05B57/02
Filed: 1922-12-08
Abstract: 206,726. Thompson, W. P., (Union Special MachineCo.). Dec. 8, 1922. , Chain-stitching.-In a chain-stitch sewing- machine the driving-shaft is mounted in the overhanging arm and is connected to drive the mechanism below the work plate by eccentric rods connected to the feed mechanism, and a vertical shaft connected to the looper. The threaded looper 23 has a pin 28 which is received in a socket 36 in a looper-carrier 30 having a head-portion 35 with an overhanging bracket 37. The looper is locked in place under the bracket by a pivoted latch 38 so that it may be released and turned outwards or removed for threading. The looper-carrier. which is mounted on a shaft oscillating in a bracket 31 beneath the workplate, is actuated from the vertical shaft through mechanism comprising a crank, a link 46, a lever 42 and toggle links 43, 44 for producing a dwell at the forward end of the stroke of the looper. The vertical shaft is driven from the main shaft through bevel-gearing. A controller for the looper thread is operated by an eccentric on the vertical shaft.
Patent GB-175779-A (GB)
Title: Improvements in engine starters
IPC: F02N15/06
Filed: 1920-11-29
Abstract: 175,779. Rogers, F. H., (Eclipse Machine Co.). Nov. 29, 1920. Turning-gear.-In an electric or other starter comprising an actuating-member and a driving- member or pinion mounted upon a driving-shaft for automatic axial movement and for rotation, the actuating-member and the driving-member are normally disconnected and free of each other. In one form, Fig. 1, the driving-shaft is a screwed sleeve 6 connected by a driving-spring 10 to the shaft 2 of the starting-motor 1. The actuating member is a nut 16 threaded on the sleeve 6 and has a flange 17 adapted for contact with a flange 15 on the driving-pinion 12 mounted loosely on the sleeve 6. When the sleeve 6 is driven by the motor 1, the nut 16 moves to the left in Fig. 1. bringing the flanges 17, 18 into contact and pushing the pinion 12 into mesh with the engine member 13. This movement is cushioned by a spring 18 between a stop 9 and a lose collar 20. When the spring 18 is fully compressed, the pinion is held between the collar 20 and the nut 16 and is compelled to rotate with the sleeve 6. When the engine starts, the nut 16 is returned by the screw-threaded sleeve and the pinion 12 by the spring 18. In a modification, the nut 16 carries spring pins adapted to enter recesses in the flange 15 of the pinion in order to ensure the axial movement of the nut on rotation of the screwed sleeve. In other forms, the spring 18 and the collar 20 may be omitted, or the pinion may be loosely mounted on an extension of the nut 16 instead of on the screwed sleeve. In a further form, the loose pinion 12 is moved into mesh with the engine member by means of a pedal which also serve to switch on the starting- motor. The nut 16 is then moved automatically into engagement with the pinion by the rotation of the screwed sleeve, and the return of the pinion and nut is automatic as in the other forms.
Patent GB-184414-A (GB)
Title: Improvements in and relating to tents and the like, and gutters therefor
IPC: E04D13/064
Filed: 1921-12-14
Abstract: 184,414. Piggott, W. C. Dec. 14, 1921. Tents and awnings; tent poles and tent-pole fittings.-In a tent or tents having eaves formed by adjacent roof canvases q, a rigid gutter a is supported by hollow sectional wall poles c through which moisture is drained by passages j and pipes r. Alternatively the poles may be solid and provided with stack pipes. The gutters are supported on yokes b which are retained in position by U-shaped standards k attached to the poles c by legs f, the standards also supporting the eaves poles m, provided with depending straps to prevent the gutters from sagging. The gutters a and yokes b are joined by bolts s and wing nuts t, the joint being made waterproof by an intermediate layer of rubber, &c. In an alternative construction the roof principals v, Fig. 8, of a frame tent are supported on the U-shaped members k by slotted extensions x, y, clamped together by bolts p, lateral stability being obtained by side straps 1 joined by bolts 2.
Patent GB-1011556-A (GB)
Title: Process for the production of organic nitrogen compounds containing the imide-chloride group
IPC: C07D241/16
Filed: 1962-09-03
Abstract: Organic compounds containing a <FORM:1011556/C2/1> grouping are prepared by reacting a compound of formula R1R2R3N (where R1 and R2 are alkyl, aryl or heterocyclic radicals which may be substituted by halogen, cyano, aryl, alkyl, nitro, amino or imino, or R1 and R2 form a heterocyclic ring with the nitrogen, and R3 is alkyl or substituted alkyl or is linked with R1 and R2 to form a heterocyclic system) or a hydrohalide or quaternary ammonium derivative thereof, with chlorine below 140 DEG C. to the extent that in the subsequent chlorination, dissociation, condensation and polymerization reactions are avoided, and then treating the product with chlorine at 140-300 DEG C., whereby alkyl or substituted alkyl chloride is split off to leave the <FORM:1011556/C2/2> compound.  Solvents may be employed.  Examples prepare (1) Cl2C : N.CCl2.CCl2.N : CCl2 from (CH3)2NCH2CH2N(CH3)2, (3) Cl3C.N : CCl2 from (CH3)3N.HCl, (4) Cl3C.CCl2.N : CCl2 from (CH3)2NCH2CH2Cl.HCl, (5) trichlorophenyl isocyanide dichloride from phenyltrimethylammonium chloride, (6) tetrachloropyrazine from N,N1 - dimethylpiperazine, (7) tetrachloropyrazine from N,N1-bis-(ethanol) piperazine, (8) tetra- and pentachloropyridine from N-methylpiperidine, (9) trichlorophenyl isocyanide dichloride from dimethylaniline, <FORM:1011556/C2/3> from C6Cl5N(CH3)2, <FORM:1011556/C2/4> from <FORM:1011556/C2/5> (the latter obtained from trichlorophenyl isocyanide, dichloride and dimethylamine), <FORM:1011556/C2/6> from o-dimethylaminotoluene <FORM:1011556/C2/7> from 2,5 - bis - (dimethylamino) - 3,6 - dichloro-p-benzoquinone, and (16 Cl2C:N.CCl2.CCl2.CCl2.COCl from N-methylpyrrolidone.  Other starting materials are listed. Specification 1,011,555 is referred to.ALSO:Examples of a process for the production of organic compounds containing the <FORM:1011556/C1/1> grouping (see Division C2) include the production by chlorination of (2) cyanuric chloride from hexamethylene tetramine; <FORM:1011556/C1/2> from 2-dimethylamino-4,6-dichlorotriazine, and <FORM:1011556/C1/3> from 2,4-bis-(dimethylamino)-6-chlorotriazine.  Specification 1,011,555 is referred to.ALSO:A nematocidal composition comprises 1% of 2, 4, 6-trichlorophenyl isocyanide dichloride in admixture with talcum. Specification 1,011,555 is referred to.
Patent GB-1425085-A (GB)
Title: Heating apparatus
IPC: F28D15/02
Filed: 1973-07-16
Abstract: 1425085 Heat pipes; japanning stoves PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 16 July 1973 [19 July 1972] 33775/73 Headings F4U and F4W Each heating chamber 1 of a tunnel oven, e.g. for baking lacquer on wire, is surrounded by a closed annular chamber 3 lined with a porous mass 4 having a capillary structure and containing sodium as a heat-transporting medium. The chambers 3 extend through a closed container 5 which contains sodium and which is lined on its bottom wall with a porous mass 7 having a capillary structure. Heat from a burner 8 is transmitted through a vaporizing wall portion 9 to the sodium in the container 5, which goes through an evaporation/condensation cycle as does the sodium in the chambers 3. In a second embodiment, Fig. 2 (not shown), the heating chambers 1 are of rectangular crosssection and the outer walls 2b stop at the side walls of the container 5. An electric heating element is arranged on the upper wall of the container 5. In a third embodiment, Fig. 3 (not shown), the chambers 3 extend from and open into one side only of the container 5.
Patent GB-429448-A (GB)
Title: Improvements in or relating to electric lamps or the like
IPC: H01K1/66
Filed: 1933-12-01
Abstract: 429,448. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, DUDDING, B. P., and LEEDS, R. E., c/o General Electric Co., Wembley, Middlesex. Dec. 1, 1933, No. 33789. [Class 39 (i)] [See also Group XI] A fuse wire contained in the cap of an electric incandescent lamp, discharge lamp, rectifier, amplifier or the like, is coated with an adherent layer of a refractory insulating material so thin that it does not resist bursting and does not increase by more than 25 per cent the current required to blow the fuse. In an example the fuse wire is made of material known under the Registered Trade Mark " Eureka," having a diameter of 0À1 mm., upon which a layer of alumina 0À05 mm. thick is applied by spraying. Specification 230,461, [Class 39 (ii)], is referred to.
Patent GB-1115407-A (GB)
Title: Improvements in or relating to electrodynamic sound transducers
IPC: H04R9/06
Filed: 1966-07-28
Abstract: 1,115,407. Electrodynamic transducers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 July, 1966 [31 July, 1965], No. 33961/66. Heading H4J. An electrodynamic sound transducer comprises a plurality of spaced apart parallel diaphragms 5 secured in an airtight manner between the surfaces of two perforated flat plates 3, 4, each diaphragm 5 carrying an electrical conductor 9, permanent magnets 1, 2 or other magnetic means apply a magnetic field normal to said surfaces. The space between the plates 3, 4 is divided by the diaphragms 5 into chambers. On passage of current through the conductors 9, deflections of successive diaphragms 5 occur in opposite directions and the air in the chambers is compressed or expanded in accordance with the value of the current. The magnets 1, 2 are preferably of barium ferrite or other oxidic sintered material having a coercive force of at least 750 oersted and the plates 3, 4 are of soft iron. Alternatively the plates 3, 4 are of such oxidic sintered material. The diaphragms 5 are of polyester foil and their edges 6, 7 extend parallel to each other and are secured to the plates 3, 4. Each conductor 9 is an aluminium strip, vaporized on one or both sides of each diaphragm 5. In an alternative embodiment, Fig. 3 (not shown), each chamber is provided with a permanent magnet (10) while each diaphragm (5) is clamped between soft iron parts (11) constituting the upper plate (13) and identical parts (15) constituting the lower plate (16). Each member (11, 15) has a series of apertures (12) along its length.
Patent GB-619561-A (GB)
Title: Improvements in and relating to radio antennas
IPC: H01Q13/18
Filed: 1946-11-16
Abstract: 619,561. Radio aerials. RUMSEY, V. H. Nov. 16, 1946, No. 34045. Convention date, June 5. [Class 40 (vii)] A radiator comprises an aperture in a cavity formed of conductive material with antenna means mounted inside the cavity and fed from outside and includes parasitically-excited radiating means associated with the aperture and arranged so that the input impedance to the antenna means is substantially constant over a band of frequencies. An array of aperture radiators (Fig. 1) have their cavities formed by a base sheet 101, a back sheet 122 and top sheet 121, and partitions 102; each cavity is approximately a wavelength long. Extensions 104 and 103 minimize back radiation. The radiators may be fed in phase by branched transmission lines or the end radiators may be energized less strongly than the centre ones, Fig. 2 (not shown). If it is desired to feed the elements of the array out of phase and with differing magnitudes, this can readily be arranged as the interaction of the radiators one on another is negligible. Radiation from each aperture has vertical polarization of the electric field and the conductive struts at the midpoint of each aperture compel operation in the proper mode. The antenna element 105 which excites the cavity is midway between the end plates and about a quarter-wavelength in front of the back plate. It is fed from the unbalanced feeder 113, 115, the outer of which 113 is in contact with the cavity and the inner of which 115 passes through insulators 106, 119 and makes contact with the centre portion of hollow tubular radiator 105. An impedance match between the transmission line and the radiator depends on the reflections inside the cavity and normally the matching is critical with frequency. However, parasitic radiators 108 serve to match the radiator over a band of frequencies by acting as capacitive loading stubs which provide shunt reactance across the wave-guide. It is stated that elements 108 not only broaden the frequency band, but serve to make any frequency matching device between antenna 105 and its transmission line necessary.
Patent GB-836208-A (GB)
Title: Improvements in heels for ladies' shoes
IPC: A43B21/36
Filed: 1956-11-07
Abstract: 836,208. Heel top-lifts. FUSSELL, E. G., and CHAMPION, C. B. Nov. 7, 1957 [Nov. 7, 1956], No. 34065/56. Class 17(3) A top-lift for a heel comprises a layer 3, Fig. 1, of metal, e.g. brass, and a layer 2, Fig. 3, of natural or synthetic rubber, bonded together by subjecting them to heat and pressure in a mould. The metal layer may be provided with keying portions. The top-piece is attached with the metal outwards by nails inserted through holes 5.
Patent GB-1007988-A (GB)
Title: Molded plastic foams
IPC: C08J9/06
Filed: 1962-09-05
Abstract: A moulded plastic foam is produced by adding to a mould a finely divided solid plastics material of maximum size 2000 m  (2 mm.) having homogeneously dispersed therethrough 0.1 to 10% by wt. of a solid blowing agent, heating the composition to decompose the blowing agent and to melt but not decompose the plastics material.  The blowing agent should preferably have the same particle size as the plastics material and should preferably decompose above the melting point thereof.  Open or closed moulds may be used while the product may be allowed to cool in the mould. Various organic and inorganic blowing agents are specified. Plastics materials exemplified are polyethylene, ethylene-butene copolymer, polypropylene, polybutene-1, chlorinated polyethylene, polystyrene, polymethyl methacrylate, polyvinyl chloride, cellulose butyrate, nylon, polyvinyl chloride plus vinyl acetate, ethyl cellulose and polyamide (from hexamethylene-diamine, adipic acid and ethyl suberic acid).  Also mentioned as suitable are cellulose acetate, methyl cellulose, polyvinyl acetate, polyvinyl alcohol, polyethylene oxide, chlorinated polyethers, polyesters [e.g. poly-(ethylene adipate - terephthalate)], phenolic resins, epoxy resins, melamines, polyurethanes and urea resins.
Patent GB-1519467-A (GB)
Title: Exhaust gas purification system for an internal combustiongasoline engine
IPC: F02B1/04
Filed: 1975-08-18
Abstract: 1519467 Exhaust passage for IC engine FUJI HEAVY INDUSTRIES Ltd 18 Aug 1975 [26 Nov 1974] 34288/75 Heading F1B [Also in Division F4] An I.C. engine exhaust gas purifying system includes an exhaust passage 8 of substantially constant cross-section extending from exhaust valves 5 to an expanded portion 17 and having a volume at least equal to and not more than four times the displacement volume of the engine cylinders to which it is connected. The cross-sectional area is less than three times the maximum throughflow area of the valves to which the exhaust passage is connected. An air passage 11 is connected downstream of the exhaust valves 5 via check-valve 9 and at least part of the passage is heat-insulated. In operation, air is induced into the exhaust passage by pulsation and inertia and reacts in the heat-insulated passage with CO and hydrocarbon to afterburn them.
Patent GB-291691-A (GB)
Title: Improvements relating to electric heating elements
IPC: H05B3/06
Filed: 1927-12-19
Abstract: 291,691. Pate, G., and Laird, J. R. Dec. 19, 1927. Wire resistances cored. - In heating elements for electric fires having refractory insulators 1 threaded on a rod 2 and provided with contact plugs, one plug 3 is disposed at right angles to the rod and the other 4 is arranged coaxially with it, the second plug being free to slide in its socket 6 to allow expansion of the rod. Rotation of the sockets 5, 6 during insertion of the plugs is permitted by partly spherical shoulders 5<1>, 6<1> formed on the sockets. on which are also carried beads 10, spring washers 11 and nuts 12. An insulated handle 8 is carried next to the plug 3, the plug 4 being first inserted in the socket 6, as shown in dotted lines, and the rod then moved to bring the plug 3 into the socket 5.
Patent GB-377552-A (GB)
Title: Improvements in or relating to insecticides or fumigants
IPC: B26D9/00
Filed: 1931-12-11
Abstract: In the process for treating stored grain, flour plants, or fruits with a mixture of an alkylene oxide and an inflammability-reducing gas as described in the parent Specification, the gas, such as carbon dioxide or nitrogen or a mixture thereof, is added in a proportion equal to or less than that of the alkylene oxide.  A mixture containing 10 per cent of the gas is stated to be efficient and to be non-inflammable when diluted with air on release from the container in which it is stored under pressure.ALSO:Relates to mixtures of an alkylene oxide and an inflammability-reducing gas for fumigation against insects, germs, and other pests as described in the parent Specification, and consists in using the gas, such as carbon dioxide or nitrogen or a mixture thereof in quantity equal to or less than that of the alkylene oxide.  A mixture containing 10 per cent of the gas is stated to be efficient and to be non-inflammable when diluted with air on release from the container in which it is stored under pressure.
Patent GB-1056327-A (GB)
Title: Pyridobenzodiazepine derivatives
IPC: A61K31/55
Filed: 1964-08-24
Abstract: Novel 5,6 - dihydro - 11H - pyrido[2,3-b]-[1,4]benzodiazepines of formula <FORM:1056327/C2/1> wherein R is H, an alkyl group optionally substituted by a C1-C4 alkoxy group or by a group -N.R3.R4 wherein R3 and R4 may be C1-C4 alkyl or the group is a heterocyclic ring optionally substituted (e.g. morpholino, piperazino, piperidino) are prepared by reduction of the corresponding 6-keto compound. Pharmaceutical compositions in conventional form for oral, rectal, topical or parenteral administration comprise a compound of the above general formula or an acid addition salt thereof and a carrier or excepient.  They have cough-soothing, secrolytic, antipyretic and/or antiphlogistic action.
Patent GB-1517383-A (GB)
Title: Data compression for facsimile transmission
IPC: H04N1/419
Filed: 1975-08-22
Abstract: 1517383 Run length encoding of picture signals PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 Aug 1975 [26 Aug 1974] 34929/75 Heading H4P In a method of run-length encoding signals obtained from scanning a picture having two luminance values the number of successive elements which have the same luminance value is represented as a binary number with the least number of digits, each five successive digits of the series of binary numbers thus produced is coded into a 5 digit ternary representation in which black and white are represented by excursions from 1 to 0 and 1 to 2 respectively and the 5 ternary digits are converted into an 8 digit binary number for transmission. Spare capacity in the 8 digit numbers may be used for error detection and synchronising. In Fig 2 the scanned and sampled signal provided by BA is fed to a register ZR1 which may be of scanning line capacity and to a luminance two state register RO which recognizes the luminance level changes because each run begins with a change from 1 to 0 or 1 to 2. The output of ZR 1 and R0 are fed at each change of luminance to registers R1 and R2 of the same length and receiving the same clock from ST 1. When each 5 digits, whether white or black or mixed, are stored in R I and R2 the clocking of the scanning unit BA is stopped and a 5 stage 3-level register is clocked on until a comparator VG1 detects equality of this register with the contents of Rl and R2. The number of clock pulses to do this is stored in Z 1 as an 8 bit code and then transmitted via RV 1 at a slow rate. Meanwhile scanning is restarted. The receiver (Fig. 4 not shown) operates in the complementary manner. Details of the comparator are also given (Fig. 3 not shown).
Patent GB-951654-A (GB)
Title: Improvements in or relating to 6-pteridine carboxamidine and amidoxime derivatives
IPC: C07D475/10
Filed: 1961-09-28
Abstract: The invention comprises substituted pteridines of the general formula: <FORM:0951654/C2/1> wherein Ar represents an aromatic radical containing not more than 8 carbon atoms such as a phenyl, chlorophenyl, tolyl, methoxyphenyl, a ,a ,a -trifluorotolyl, hydroxyphenyl, aminophenyl, thienyl or pyridyl radical, R1 and R2, which may be the same or different, each represent a hydrogen atom, an alkyl radical having a maximum of 4 carbon atoms, or an aralkyl radical containing 7 or 8 carbon atoms, R3 represents a hydrogen atom or, when R1 and R2 both represent a hydrogen atom, R3 may also represent a hydroxy radical, an alkoxy radical having a maximum of 4 carbon atoms or an aralkoxy radical containing 7 or 8 carbon atoms, and R4 and R5, which may be the same or different, each represent a hydrogen atom or an alkyl radical having a maximum of 4 carbon atoms, and the preparation thereof by reacting in a polar solvent substituted pteridines of the general formula: <FORM:0951654/C2/2> wherein Ar, R4 and R5 have the above significance, with a compound of the general formula R1R2R3N, wherein R1, R2 and R3 have the above significance.  The substituted pteridines of the first general formula above may be converted into acid addition salts thereof with pharmaceutically acceptable acids such as hydrochloric, sulphuric, methylsulphonic and phosphoric acids.  In addition, the substituted pteridines of the first general formula above wherein R3 represents a hydroxy radical form alkali metal salts.  The substituted pteridines of the first general formula above wherein R1 represents a hydrogen atom may exist in a tautomeric form i.e. the double bond in the 6-position may move.  6-Cyano-pteridines of the second general formula above are prepared by heating 4, 6-diamino-2-aryl-5-nitroso-pyrimidine with malonitrile in a liquid tertiary amine such as pyridine at temperatures above 50 DEG C. for from about 1 to 12 hours as described in Specification 951,655. Additional examples are given.
Patent GB-367439-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of artificial filaments or the like
IPC: D01D4/02
Filed: 1930-11-20
Abstract: <PICT:0367439/IV/1> <PICT:0367439/IV/2> A spinning jet for the manufacture of artificial filaments comprises a body member 10, a face member or plug 11 having an edge adapted to be forced into contact with a seat in the body member, notches being formed at the surface of contact 21.  The notches may be cut in the plug, or body member, or in both, if desired in such manner that the resulting orifices taper inwardly as they lead out of the jet body.  The surface of contact is preferably conical and the plug may have a conical edge tapering inwardly and adapted to be drawn inwardly on to its seating, Fig. 1, by a screw 12, or have a conical edge tapering outwardly and adapted to be forced outwardly on to its seating, Fig. 3, by a screwed member 22.  The body member is attached to a candle filter 7 by a jet attachment 8.  The orifices cut in the plug and/or body member may be of any desired shape, e.g. circular, lozenge-shape, square, &c., and the plug and/or body member may also be provided with an annular groove to decrease the length of the spinning orifices.