baber/WOPTO huggingface dataset:
Patent GB-1487624-A (GB)
Title: Ignition systems
IPC: F02P3/04
Filed: 1974-11-15
Abstract: 1487624 Ignition systems ROBERT BOSCH GmbH 15 Nov 1974 [16 Nov 1973] 49446/74 Heading F1B In an ignition system for an internal combustion engine having a plurality of sparking plugs 12, 13 and a respective gaseous spark discharge device 14, 15 connectible in series with each sparking plug, the starting voltage of each spark discharge device is controllable from a first value greater than the ignition voltage to a second value less than the ignition voltage responsively to the generation of the ignition voltage and in a predetermined sequence. The starting voltage of each spark discharge device is controllable by a respective magnetic field. As shown each spark discharge device 14, 15 is associated with a current carrying coil 17, 19 for generating the respective magnetic field and comprises a respective sealed gas filled and non- magnetic hollow body 16, 18. The system further comprises a plurality of signal generators triggerable sequentially by a signal trigger 38 rotatable in synchronism with a shaft 41 of the engine to supply respective control signals. Each of the signal generators is triggerable to control at least a respective one of a number of switches 22, 25. As shown the switches 22, 25 are transistors. If desired the system can be triggered by means of a conventional contact breaker. The switches 22, 25 can be replaced by a mechanical switching device. The devices 14, 15 can be fitted in or on the ignition coil 7 or in spark-plug connectors. Specification 1487623 is referred to.
Patent GB-1467710-A (GB)
Title: Continuous process for the purification of sodium
IPC: C22B26/10
Filed: 1974-11-15
Abstract: 1467710 Purifying sodium METAUX SPECIAUX SA 15 Nov 1974 [16 Nov 1973] 49492/74 Heading C7D Sodium peroxide, preferably in finely divided form, is mixed into a stream of molten impure Na at 100‹-150‹C, heated to 200‹-300‹C such that the impurities, largely Ca and Ba, oxidize wherein the oxides are separated from the purified Na. The impure Na is fed from reservoir 1 to mixer 5 where it meets the Na 2 O 2  and the resulting suspension is fed to reactor 8, preferably at 210‹-230‹C, the melt flowing to decanter 9 where it is sucked through strainers 10 to filter 13 and subsequently to storage 15. The stripped oxides in decanter 9 deposit at the bottom and are removed by scraper 11 and conveyer 12. Sampling may be carried out at 14. The resulting pure Na has < 10 ppm Ca and < 5 ppm Ba. Reference has been directed by the Comptroller to Specification 1167382.
Patent GB-1492929-A (GB)
Title: Catalytic structures having metallic substrates
IPC: B01J35/02
Filed: 1973-10-24
Abstract: 1492929 Nitric acid; purifying gases JOHNSON MATTHEY & CO Ltd 24 Oct 1974 [24 Oct 1973 24 July 1974] 49501/73 Heading ClA [Also in Division Bl] Nitric oxide is made by the oxidation of ammonia, oxides of nitrogen are reduced with a gaseous reducing fuel, hydrocarbons or carbon monoxide are oxidized and automobile exhaust gases are purified in the presence of catalysts comprising an extended metal substrate made from a heat and oxidation resistant alloy of Fe containing 3-40 wt. per cent Cr, 1-10 wt. per cent Al, 0-5 wt. per cent Co, 0-72 wt. per cent Ni and 0-0À5 wt. per cent C; a first layer on the extended metal substrate comprising an adherent coating of a refractory oxide and/or a compound containing an oxygen-containing anion; and a catalytic material comprising ore or metals selected from Ru, Rh, Pd, Ir, Pt, Ag, Au and alloys containing at least 10 wt. per cent of one of said metals and Bi, Sb or one or more base metals. The alloy of Fe may contain up to 10 wt. per cent of Si, Mn, Zr, Cu, W, V, Mo, Ce, Nb, Ta and/or Ti. The first layer may comprise alumina, silica, titania, zirconia, hafnia, chromia, boria, an oxide of scandium, yttrium or a lanthanide, a chromate, a phosphate, a silicate or a nitrate. The base metal may be Al, Mg, Cr, Mo, W, Mn, Fe, Re, Co, Ti, V, Cu, Zn, Cd, In, Sn, Pb, a lanthanide, or an actinide. In examples the catalysts are used to purify exhaust gases by the oxidation of hydrocarbons and carbon monoxide.
Patent GB-1408897-A (GB)
Title: Dischargepipe fittings
IPC: F23J13/00
Filed: 1972-10-27
Abstract: 1408897 Chimney and like flashings J T GARROD 15 Oct 1973 [27 Oct 1972] 49676/72 Heading F4B A flue pipe joint with a tiled roof comprises a double walled flue pipe 2 projecting beyond a flashing 4 and having a reduced end 12 formed with angled lugs 14 associated with a fitting 24 formed of coaxial tubes 16 and 18, the latter having a skirt 30 overlapping the flashing. Located between tubes 16 and 18 is an inverted U-shaped collar 20, the outer leg 22 of which is formed with lugs engaging the lugs 14 to form a releasable connection. The parts of the fitting may be riveted or welded together or it may be an integral unit. As applied to a single bore type it may be made of plastics material and may be a push fit into the flue pipe. The top of the fitting may form a male connection to a ventilation terminal.
Patent GB-1457957-A (GB)
Title: Method of producing seamless thin-walled pipes and apparatus  for effecting said method
IPC: B21C23/08
Filed: 1974-11-16
Abstract: 1457957 Extruding; tube expanding; making tubes M S GILDENGORN S S KORYAKIN J D KOT and M S SIROTINSKY 16 Nov 1974 49704/74 Headings B3P B3J and B3A A thin-walled tube is made by extruding a billet to form a tube whose surface periphery is greater than the billet periphery and then by expanding the extruded tube using internal pressure. The extrusion is effected between a die 3 and a mandrel 5 with congruent surface formations to define an extrusion opening 3<SP>1</SP>. The expansion may be effected by a tapered plug 9, Fig. 7, drawn into the tube 4 by a pull rod 10 or by a plug 9, Fig. 9, fixed to or abutted against the end of the mandrel 5. The extruded tube has a corrugated wall which is rendered smooth by the expansion to produce a large diameter tube. The expansion may alternatively be by explosion, electromagnetic field, fluid, gas with the pipe retained in a container.
Patent GB-1089737-A (GB)
Title: Improvements in or relating to nitrothenylideneamino compounds
IPC: C07D409/12
Filed: 1965-11-24
Abstract: The invention comprises compounds of the formula <FORM:1089737/C2/1> wherein A is a group of the formula <FORM:1089737/C2/2> or <FORM:1089737/C2/3> in which R is hydrogen or C1- 6 alkyl, X is O, S or NH, Y is O or H2, and the 5, 6 bond is a single or double bond, and pharmaceutically acceptable acid addition and alkali metal salts thereof.  The nitrothenylideneaminopyrimidine compounds are prepared by condensing an appropriately substituted 1-aminopyrimidine with 5 - nitrothiophene - 2 - carboxyaldehyde or its diacetate.  The imidazolidines are prepared by treating an appropriately substituted imidazolidine with nitrous acid, reducing the nitroso group and condensing the resulting aminoimidazolidine with 5-nitrothiophene-2-carboxyaldehyde.  1 - Benzylideneamino - 6 - ethyl - 5,6 - dihydrouracil is prepared by reacting acetone semicarbazone with ethyl 3-ethylacrylate and reacting the product with benzaldehyde in hydrochloric acid.  The corresponding 6-propyl and 6-butyl compounds are similarly prepared.  1-Benzylideneaminouracil is prepared by reacting acetone semicarbazone with ethyl propiolate and reacting the product with benzaldehyde in hydrochloric acid.  1 - Benzylideneamino - 2 - thio - 5,6 - dihydrouracil is prepared by reacting acetone thiosemicarbazone and methyl acrylate and reacting the product with benzaldehyde in hydrochloric acid.  1 - Benzylideneamino - 3,6 - dimethyl - 5,6-dihydrouracil is prepared by reacting 1-benzylideneamino - 6 - methyl - 5,6 - dihydrouracil with dimethyl sulphate.  1 - Benzylideneamino - 2 - imino - 5,6 - dihydrouracil is prepared by reacting isopropylideneaminoguanidine with methyl acrylate and reacting the product with benzaldehyde in hydrochloric acid.  Pharmaceutical compositions having antitrichonomal and antibacterial activity comprise a compound of the invention together with a pharmaceutical carrier.  Reference has been directed by the Comptroller to Specification 748,440.
Patent GB-1190308-A (GB)
Title: Apparatus for Producing Corrugated Board
IPC: B31F1/28
Filed: 1968-10-22
Abstract: 1,190,308. Apparatus for producing corrugated board. S. & S. CORRUGATED PAPER MACHINERY CO. Inc. 22 Oct., 1968 [21 Dec., 1967], No. 50034/68. Heading B5N. An apparatus 10 for producing corrugated board comprises (a) a gluing section into which a corrugated web 13 and a backing web 14 are fed, said webs being united by starch adhesive on the crowns 13a of the corrugated layer, (b) steam chests 15, 16, 17 which remove excess moisture and which provide horizontal support for the composite web 13, 14, and (c) a pulley section 12 which comprises a lower horizontal supporting belt 18 running on idlers 31 and an upper belt 20 which is pressed downwards by idlers 41, the idlers 41 having a longitudinal spacing therebetween of 1À1-1À3 times their diameter. There are between 28 and 50 idlers 41 which are 80-105 inches long and 1¢-3 inches in diameter and are suitably constructed of steel. The belts 18, 20 are driven by a motor 23 through bevel 24 and gears 25, 26 to drive the rolls 27, 28. The upper flight of belt 18 extends between the drive roll 27 and an idler 29 and is supported by idlers 31, and the lower flight passes over idlers 32, 33. The lower flight of the belt 20 extends from an idler 35 at the infeed end to the roll 28 at the outfeed end and the upper flight is guided by idlers 36, 37, 38, 39, the latter two of which are connected to an hydraulic tensioning means 19. The idlers 31, 41 are provided with recesses containing bearings 51, 61 and are mounted on shafts 52, 62. The shaft 52 is attached to a frame member 53 and the shaft 62 is attached to a bracket 63, the end portions of which 63d, 63b extend into vertically-elongated recesses in upward extensions 53a, 53b of the frame 53.
Patent GB-1066803-A (GB)
Title: Improvements in or relating to visible radiation light sources
Inventor: AGDUR NILS BERTIL
IPC: H01K1/08
Filed: 1963-12-19
Abstract: 1,066,803. Abrading. KOOPERATIVA FORBUNDET EKONOMISK FORENING. Dec. 19, 1963 [March 21, 1963], No. 50195/63. Heading B3D. [Also in Division H1] A filament wire for an electric lamp is formed with axially extending depressions having a depth of the same order of magnitude as the wavelength of visible light by drawing the wire through a funnel-shaped die containing diamond powder of appropriate grain size.
Patent GB-1406243-A (GB)
Title: Loudspeaking telephone instruments
IPC: H04M9/10
Filed: 1971-10-28
Abstract: 1406243 Loud-speaking telephones GENERAL ELECTRIC CO 27 Oct 1972 [28 Oct 1971] 50210/71 Heading H4A In a loud-speaking telephone apparatus having F.E.T.s 48, 49 in the transmit and receive paths for disabling one path or the other, the speech signals on each path at the points 44, 46 and 45, 47 are applied to respective pairs of inputs 1, 50 and 2, 51 of a voltage comparison circuit (Fig. 2) which is characterized by an arrangement whereby the speech at each pair of inputs is rectified and used to charge a pair of capacitors 9, 10 or 23, 24, the capacitors in each pair being cyclically and alternately discharged through transistors 13 or 14, 25 or 26 which are switched by a 33 Hz multivibrator 15; the capacitors of each pair are coupled via pairs of diodes 16, 17 or 27, 28 to inputs of a comparison device comprising amplifier 18, the arrangement of the diodes being such that for each pair of capacitors it is the greater of the two capacitor voltages that is applied to the comparison amplifier. Outputs 3, 4 of the comparison device are coupled to the F.E.T.s 48, 49 such that the path is enabled on which the greater speech signal is occurring. The arrangement of the pairs of capacitors is said to reduce the clipping that can occur, when low level speech signals on one path follow a high level speech signal on the other path, the clipping being due to a capacitor which is charged to the high speech level taking a comparatively long time to decay. An arrangement comprising resistors 30, 31, diode 29 and amplifiers 5, 6 is used to bias the diodes 7, 8, 21, 22 to just below their threshold voltages so as to avoid non-linearity. Arrangements using more than two capacitors in place of capacitors pairs 9, 10 and 23, 24 are contemplated but no detailed embodiment is discussed. Specification 879,836 is referred to.
Patent GB-1285726-A (GB)
Title: Process for bonding polytetrafluoroethylene to glass
IPC: C08J5/12
Filed: 1969-10-29
Abstract: 1285726 Coating glass surfaces with polytetrafluoroethylene EI DU PONT DE NEMOURS CO 29 Oct 1969 [29 Oct 19681 50246/69 Heading B2E [Also in Divisions B5 and C3] Polytetrafluoroethylene is bonded to glass by coating the glass with a water-hydrolysable and/or hydroxyl group-containing, aminogroup containing organo silane or with a methacrylato chromic chloride, contacting the coated glass with polytetrafluoroethylene and sintering the polytetrafluoroethylene in the assembly in an inert atmosphere, e.g. nitrogen, at a temperature of at least 327‹C. The glass may be in the form of flakes, beads, powder, fibres, filaments, strands, chopped strands, mats, fabrics or plates and the polytetrafluoroethylene may be in dispersed in a liquid vehicle, in powdered form or in paste-extruded unsintered form. The silane may have the formula: in which A is hydroxyl, or a water hydrolysable group, e.g. U, F, alkoxy containing 1-5 carbon atoms, aryloxy, e.g. phenoxy or naphthoxy, or acetoxy, B is an organic group containing an amino group, e.g. an aminophenyl radical bonded directly to the Si atom or indirectly through an alkylene group, -(CH 2 ) x NH 2  or -(CH 2 ) x N(CH 3 ) 2  in which x is an integer of 2-9 or -(CH 2 ) y NH(CH 2 ) z NHR in which y is an integer of 2-4, z is an integer of 1-4 and R is H, methyl or ethyl, and each C is A or B or a C 1-5  alkyl group, preferred silanes being gamma-aminopropyltriethoxy silane, m-and p-aminophenyltriethoxy silanes and N(n-propyl trimethoxysilyl) ethylene diamine. The organosilane or methacrylato chromic chloride may be applied to the glass as an organic solvent or aqueous solution or dispersion by mixing, spraying or dipping and then dried.
Patent GB-1333235-A (GB)
Title: Side loader with transversely moving mast assembly
IPC: B66F9/10
Filed: 1970-10-23
Abstract: 1333235 Masted lift trucks F BENGEL A SAUTER and U SAUTER [trading as ALBERT IRION NACHFOLGER] 23 Oct 1970 [6 Feb 1970] 50439/70 Heading B8H In a side-operating lift truck in which the mast assembly 8 is mounted on a carriage 4 for movement transversely of the truck, the mast assembly is mounted so as to be adjustable about a vertical axis for picking up loads which are not parallel with the longitudinal axis of the truck. In the embodiment shown. Fig. 2, the mast 8 is pivoted about an axis 6 on the carriage 4 by means of a double-acting ram 10. A device 11, actuated by a cam on. the carriage 4, is provided to interconnect the chambers of the ram 10, when the carriage 4 is retracted, thereby preventing slewing of the mast. In a second embodiment, Fig. 4 (not shown), the mast is secured to a carriage which is mounted so as to be capable of limited slewing relative to the tracks on. which it runs.
Patent GB-1207497-A (GB)
Title: Improvements in or relating to lathes
IPC: B23Q5/40
Filed: 1967-11-07
Abstract: 1,207,497. Tool setting and indicating. INDUSTRIAS ROMI S/A. 7 Nov., 1967 [16 Nov., 1966], No. 50611/67. Headings B3B and B3T. In a machine tool such as a lathe means are provided for setting and indicating the position of the cutting tool in relation to the workpiece spindle axis which includes gauge means for setting the cutting tool in a " zero " position vertically and horizontally corresponding to the axis of the spindle and dial indicating means mounted on and operable with the tool slide to visually indicate the movement of the cutting tool and slide and the extent of movement from the " zero " position. The determining of a vertical plane through the spindle axis is effected by a gauge member 128 insertable in the bore of the spindle and which carries a dial gauge 135 against which a master bar 143 corresponding to the tool position is set. Digital counter 76 and indicator 149 on the tool slide are then set to a zero position. The cutting tool 142 is then set to the position determined by the master bar by a setting device 153 mounted on a prepared location 151, 152 on the tool slide and carrying a dial gauge 157 which reads zero when the slide dial indicators read zero. The height of the tool point is set by an adjusting screw carried in a gauge plate which is mountable on the top surface of the setting device when the dial gauge is removed. The counter 76 and indicator 149 on the tool slide are interconnected by gears and to the tool slide to give fine and coarse reading of movement respectively. The coarse or rapid movement of the tool slide is effected by rotation of the hand wheel 3 which produces a reading on both the dial indicators which gives the exact traverse of the slide and the extent of movement from the zero position. The rotation of the dial indicator drum 4 produces, due to the gear ratios between the indicator and slide screw, the fine movement of the tool slide and cutting tool. The rotation of the slide screw effects movement of the tool slide through a nut attached to the slide which is in the form of a recirculatory ball-type connection which reduces backlash between the nut and screw and so maintains the accuracy of the tool settings.
Patent GB-1299708-A (GB)
Title: Incremental web feeding means
IPC: B41F13/04
Filed: 1970-10-27
Abstract: 1299708 Variable speed ratchet gear PAKO CORP 27 Oct 1970 [28 Nov 1969] 51059/70 Heading F2D [Also in Division B8] Apparatus for feeding web material 12 intermittently through a machine comprises (a) feed rollers 13, 14 and 16, 17 in driving engagement with a flexible member 20, i.e. a chain, attached at one end to a spring 21 and anchored at the other end 50, (b) a member 28 on a disc 26 rotated one revolution for each machine cycle, the member 28 contacting the chain 20 during each revolution to move forwardly the run of the chain between the feed rollers so as to drive the rollers and (c) means for adjusting the initial position of the member 28 relatively to the chain 20 to vary the feed. The apparatus may be used in a machine wherein photographic paper passes from a reel 10 to a continuously driven roller 11 forming a loop 12a, thence to a photographic printing area A from which it passes to a rewind reel 18. The rollers 16, 17 are of slightly larger diameter than the rollers 13, 14 so as to tension the web at station A. The chain 20 drives the lower rollers 14, 17 of the pairs of feed rollers through pinions 22, 24 and one-way clutches the upper rollers being geared to the lower rollers. For adjusting the relative positions of the member 28 and chain 20, the anchorage 50 can be moved by screw mechanism 46 or the position of the axis of the disc 26 may be varied. The apparatus provides a gradual acceleration followed by a gradual deceleration during a feed stroke. A brake disc on the roller 14 is engaged by a brake band 36 tensioned by a lever 30 operated by a cam 42 on the disc 26 before the end of the feed stroke to prevent over-run of the web. The chain 20 is guided between the disc 26 and a fixed shield (52) the adjacent surfaces of the parts 26, (52) being coated with low-friction vibration-damping material.
Patent GB-1062050-A (GB)
Title: Improvements in or relating to electrolytic shaping
IPC: B23H9/10
Filed: 1963-12-27
Abstract: <PICT:1062050/C6-C7/1> <PICT:1062050/C6-C7/2> A fixture for holding a workpiece during electrolytic shaping by a movable electrode comprises means for holding the workpiece with its surface to be shaped clamped against electrode guiding means. Fig. 1 shows an electrode 32 which is advanced through guide means 60 to machine a groove or notch (26) Fig.5 (not shown) in a workpiece W shown as a turbine blade.  The workpiece is clamped in position on support blocks by a resilient pad 96 which can be raised and lowered by a handle 82.  Electrical contact is made with a flange of the workpiece by operating a handle 110, Figs.1 and 3, to bring a copper braid conductor 116 into contact with it.  As illustrated in Fig.4 (not shown) the electrode 32 is solid.  Its forward end, apart from the working tip (140), has a covering of insulating material (142), e.g. of epoxy resin.  The clearance between the electrode surface and the walls of a passageway 138, Fig.3 (and Fig.4, not shown), in the electrode guide means is such as to prevent electrolyte leakage. Electrolyte from a supply 34, Fig.1, is pumped through a pipe 36 and hose 44 and thence through a reservoir 136, Fig.3, in the electrode guide means 60 and passageway 146 to a recess (144) Fig.4 (not shown) in the side of the electrode. It then passes through the gap between the electrode tip (140) and the workpiece W and exits through a passageway 150 which may contain a restricting valve to put back pressure on the electrolyte in the work gap.  The electrode is advanced at a constant controlled rate.  All the parts supporting the workpiece are of electrically insulating material.  The whole fixture for holding the workpiece in position relative to the moving electrode is clamped at 170, Fig.1, on to a table 162.
Patent GB-1198496-A (GB)
Title: Improvements in or relating to Remote Control Device for Fluid Pressure Operated Apparatus
IPC: F15B21/00
Filed: 1967-11-10
Abstract: 1,198,496. Valves. EMIL PLEIGER K.G. 10 Nov., 1967 [4 April, 1967], No. 51275/67. Heading F2V. [Also in Division F1] A device, Fig. 2, for remotely controlling fluid pressure apparatus comprises a casing 1 having a single inlet 16 selectively feeding at least two outlets 17a, 18a leading to the apparatus, each outlet being normally closed by an individual ball valve 25 displaceable to an open position against a spring 21 by depressing a plunger 14 having a press button 30. When the ball valves 25 are in their closed positions the inlet 16 is closed whereas the outlets 17a, 18a are connected by cross-bores in a cylindrical casing 23 to an exhaust pipe 29. Each plunger 14 has a conical end 10 which variably throttles fluid passing to its outlet in dependence on the plunger's axial displacement. The outlets 17a, 18a may control the remote apparatus directly or indirectly by providing pilot signals to main valves 39, 40, Fig. 4. The main valves 39, 40 receive fluid through a branch conduit 53 which fluid normally holds valve member 43, 44 closed against seats 45, 46. In the closed positions, connections 49, 50, leading e.g. to opposite sides of a reversible motor, are exhausted through vents 51, 52. When the outlet 17a is pressurized, the valve 39 moves to close vent 51 and the member 43 moves off its seat 45 thereby pressurizing connection 49 from the branch 53. The valve 40 operates in an identical manner.