baber/WOPTO huggingface dataset:
Patent GB-390133-A (GB)
Title: Regulation of valves with automatic discharge for switching purposes
IPC: H02P7/293
Filed: 1931-06-24
Abstract: 390,133. Converting. DUBILIER CONDENSER CO.' (1925), Ltd., Victoria Road, North Acton, London.-(Assignees of Linke, J. ; 65, Niebuhrstrasse, Charlottenburg, Berlin.) June 24, '1931, No. 18240. Convention date, June 24, 1930.. Void [Published under Sect. 91 of the Acts]. Drawings to Specification. [Class 38 (ii).] An A.C. or D.C. motor is supplied from an A.C. source through an electron discharge device controlled by auxiliary anodes in a manner similar to that described in Specification 389,459, except that the auxiliary anodes are excited through a phase-shifting device automatically operated according to the motor current. The Specification contains much subject-matter that is not clearly described.
Patent GB-1464121-A (GB)
Title: Aqueous dispersions of synthetic or natural resins
IPC: C09D7/00
Filed: 1974-04-26
Abstract: 1464121 Inhibiting foam in resin compositions HENKEL & CIE GmbH 26 April 1974 [30 April 1973] 18272/74 Heading C1C [Also in Divisions C2 and C3] The foaming of aqueous synthetic or natural resin compositions is controlled by adding to them an aqueous or organic dispersion of a hydroxyamide of formula where R 1  and R 2  are C 10-26  alkyl groups and m and n are 0, 1 or 2 but m and n are not both equal to 0. The organic liquid used for making the dispersion may be a mineral oil of b.p. above 140 C., a fatty acid or alcohol containing 8-18 carbon atoms or esters thereof, or a terpene hydrocarbon. The dispersions may also contain an emulsifier (e.g. a polyglycol ether) or a thickener (e.g. aluminium-, calcium- or zinc-stearates or silicic acid).
Patent GB-700424-A (GB)
Title: Epicyclic power transmission mechanisms
IPC: F16H3/66
Filed: 1951-08-02
Abstract: 700,424. Change-speed gearing. AUTO TRANSMISSIONS, Ltd., and NORMANVILLE, E. J. DE. -July 14, 1952 [Aug. 2, 1951], No. 18301/51. Class 80 (2). Epicyclic gearing providing three speeds and reverse comprises a carrier c fast on the output shaft d and carrying inter-engaging planets f, g, engaging respectively with a sun wheel b fast on the input shaft a and with a reaction sun wheel h loose on shaft a, an annulus p engaging the planets g and controlled by a brake q, a second carrier j fast with wheel h and controlled by a brake k, planets m on carrier j engaging with an annulus o fast on carrier c and with a second reaction sun wheel n loose on shaft a, and a. clutch member s fast with wheel n and cooperating with a brake t and with a clutch member u rotating with shaft a. First speed is obtained by applying brake k, second by applying brake t, direct drive by engaging clutch u, s, and reverse by applying brake q. A one-way clutch x may be interposed between wheel n (or h) and a member v, so that a free-wheeling second (or first) speed may be obtained by applying a brake w to the member v. An additional low speed may be obtained by applying a brake to a further annulus engaging the planets f.
Patent GB-710827-A (GB)
Title: Improvements in the processing of crude copper mattes
IPC: C22B23/02
Filed: 1952-07-21
Abstract: Iron-containing nickel-copper or cobalt-copper mattes are worked up by a process comprising annealing a crude matte of said kind, the sulphur content of which is at the most sufficient to combine with the copper and iron contained therein but at least sufficient to combine with the copper contained therein comminuting the product and subjecting it to a mechanical separation.  The annealing causes nickel-iron or cobalt-iron particles to separate from copper sulphide and iron sulphide particles.  The latter can be separated in normal way.  The cobalt-iron or nickel-iron separated out can be treated by the carbonyl process with the recovery of most of the nickel or cobalt and the iron residue may be added to further amounts of the crude matte if necessary to reduce the effective sulphur content.
Patent GB-609819-A (GB)
Title: Improvements in and relating to circuits for tracer controlled lathes and other machine tools
IPC: B23Q35/12
Filed: 1945-07-17
Abstract: 609,819. Operating clutches. TRIGGS, W. W. (Niles-Bement-Pond Co.). July 17, 1945, No. 18325. [Class 80 (ii)] [Also in Groups XXII and XXXVIII] A tracer-controlled lathe, or like machine having electromagnetic clutches for controlling movements of the tool slides is provided with relays operated by the tracer to control the clutches, and a supplementary relay, operated by one of the clutch-controlling relays, closure of which introduces resistance into the energizing circuit of whichever clutch is in operation. On the application to a lathe, Fig. 2, a tracer 31 moves over a pattern 33 and according to the inclination of the latter operates relays to effect the opening and closing of electromagnetic clutches 10, 12 which control the forward and reverse movements of feed screws 7 and 20 for the longitudinal and cross-feed movements respectively of a tool-carrier 18. The tracer 32, Fig. 4, of known construction, includes a lever 39 biassed by springs in an anti-clockwise direction to close contacts 42, 43 for the " in " feed of the tool. The circuit thus " made is through the earthed tracer head 31, lever 39, contacts 42, 43, lead 63, solenoid of triple pole " in " relay and lead 67 to a grounded generator 68. Energization of " in " relay opens circuit to longitudinal feed clutch " E " or " W " and thus stops feed of main carriage and at the same time closes contacts 77 and 81, the former closing the circuit to the " in " clutch at line potential and the latter closing a circuit to the supplementary relay R. The latter operates immediately after the " in " clutch is energized to open contacts 87 and close contacts 90. The circuit from the live wire 76 to lead 80 must now traverse a resistance 88 reducing the potential to hold the " in " clutch. The closure of contacts 90 at the same time cuts out a resistance 91 from the circuit to the " E " or " W " clutch magnet (according to which has been selected by a hand switch 92) so that when this is again energized it will be at the full potential of the line. The supplementary relay operates similarly when the " out " relay is energized by movement of the tracer to close the contacts 50, 51. U.S.A. Specifications 1,518,114 and 1,711,290 are referred to.
Patent GB-130334-A (GB)
Title: Improvements in or relating to the Reduction of Ores and Oxygen Compounds utilised as Ores.
Inventor: WIBERG FRANS MARTIN
IPC: C21B13/02
Filed: 1919-07-23
Abstract: 130,334. Wiberg, F. M. July 23, 1918, [Convention date]. Shaft furnaces.-In a furnace for the gaseous reduction of ores, the gas is supplied to the shaft d from a producer s and is partly withdrawn for regeneration through openings k, the remainder being burnt in the upper part b, c of the shaft in order to pre-heat the ore. If the gas withdrawn for re-generation is too hot to pass directly through the blower m it is first drawn through one of a pair of heat-exchangers p, r in which it is cooled, and then forced through the other regenerator to be heated again before entering the producer; valves o, q enable the direction of flow to be reversed. Iron may be used as the heatabsorbing material in the heat-exchangers.
Patent GB-740933-A (GB)
Title: A method of riveting together two pieces of material one at least of which consists of nylon or like material
Inventor: RIPPER DAVID WILLIAM
IPC: B65D6/28
Filed: 1953-07-02
Abstract: 740,933. Riveted joints. LUCAS (INDUSTRIES), Ltd., J. May 21, 1954 [July 2, 1953], No. 18337/53. Class 83 (4). A method of riveting together two pieces of material one at least of which consists of nylon or like plastic material comprises forming an annular recess d in the nylon piece a at the root of a rivet or rivets b formed in the nylon piece, squeezing the two pieces to be connected between a pair of plates e and f, the plate f in contact with the nylon piece having a convex protuberance g coaxial with the rivet or each rivet, and forming a head on the rivet or each rivet for securing the two pieces together.
Patent GB-503509-A (GB)
Title: Improvements in or relating to process and apparatus for the gasification of fuels having contents of tar, like e.g. brown coal, lignite, peat or the like, as well as of thickly-fluid liquid fuels
IPC: C10J3/02
Filed: 1937-07-02
Abstract: 503,509. Gas-producers. MAUTHNER, D. July 2, 1937, No. 18464. Void. Convention date, July 2, 1936. [Class 66 (i)] In a gas-produce provided with a pre distillation retort in dependent therefrom the gases evolved fron the retort are collected in a downward direc tion and led below the grate of the generator and the gases produced in the latter are withdrawn through an annular space surrounding the retort. Tars &c. are thus removed from the fuel in the retort before its admission to the generator, and the predistillation gases are converted to permanent gases by their passage through the fuel bed of the generator. The pre-distillation retort 2 which surrounds a tube 5 for direct supply of fuel to the generator and is closed at its base by a counterweighted bell-shaped valve 3, is provided with superposed annular rings 7 of conical crosssection through which the gases are withdrawn by the suction of the generator and led through a pipe 19 to below the grate 20 where they mix with the air supply to the generator from a pipe 16 which communicates with a jacket 15 surrounding the firebox 13 in which the air is preheated. The generator gas is withdrawn through the annular chamber 22 between the retort and the generator wall and also through the supply tube 5 to an off-take 24. The predistilled fuel from the retort is periodically admitted to the generator which is initially supplied with tar-free fuel, such as charcoal. Separate hoppers 9 and 8 are provided, the latter leading first to a pre-heating chamber 12. To increase the temperature of the retort, such as to 700‹ C., air may be admitted thereto through an inlet 25, the base fuel in the retort becoming incandescent. Steam may be also supplied through an inlet 34. The tube 5 may be kept filled with charcoal to filter the generator gas. Liquid fuels may be supplied from a hopper 29. Specification 457,657, [Group XXVII], is referred to.
Patent GB-185071-A (GB)
Abstract: 185,071. Haddan, A. J. H., (National Cash Register Co.). Feb. 26, 1921 Hammer - impression arrangements.-A construction of hammer-impression mechanism for forcing the printing strip against the tyre-wheels in a statisticscompiling machine is described. The hammer 891 has loosely pivoted to it two sets of parallel arms 892 mounted loosely on shafts 418, 894. The lower set are provided with flat faces 895 adapted to engage pins 898 on arms 896 rigidly secured to the shaft 894. These arms have flats 897 on the upper ends adapted to engage the shaft 418. The shaft 894 is surrounded by a spring under tension, the upper end bearing against the shaft 418 while the lower end rests against the arm 896. An arm 900 is also rigid with the shaft 894. A lever loosely mounted on the shaft 894 carries at its end a pivoted catch 903. During the operation of the machine, this lever is rocked by cam mechanism, so that first, the catch is lowered, and engages beneath a pin 901 on the arm 900. The catch is then raised with the arm 900 placing the spring under additional tension. When the tail 905 of the catch engages a fixed pin 906, the catch is released and the shaft 894 flies back raising the hammer to make a sharp impression.
Patent GB-284547-A (GB)
Title: Improvements in means for controlling the electric switches of electrically heated water-heaters or geysers
IPC: F24H9/20
Filed: 1927-07-12
Abstract: 284,547. Ewart, J. H. July 12, 1927. Fluid actuation. - An electric switch controlling the heating circuit of a geyser is turned both on and off by the pressure of the water, when the supply tap of the geyser is turned on and off. The switch is operated by longitudinal movements of a rod b which connects two pistons a<1>, a<2> moving in cylinders c<1>, c<2> which are of different diameter and are connected by a tube p. When the tap is turned on, water escapes through a. tube l and water entering through a tube k presses on both of the pistons a<1>, a<2>. The piston a<1> being larger than the piston a<1>, the pressure on it predominates and drives the rod b ddwnwards to close the switch. In its lowest position the piston a<1> lies below holes m in the cylinder c', the holes m allowing water to continue to pass through to the pipe l from the pipe k. When the tap is turned off the water pressure becomes the same on both sides of the piston a<1> and is maintained so by means of a hole n passing through the piston. The water pressure continues to act upwards on the piston a<2> and thus the rod b is moved upwards to open the switch.
Patent GB-913400-A (GB)
Title: Improvements in condensation nuclei detector
Inventor: BIGELOW JOHN EDWARD
IPC: A63C9/00
Filed: 1961-05-23
Abstract: 913,400. Turbidometers. GENERAL ELECTRIC CO. May 23, 1961, No. 18552/61. Class 97 (3). [Also in Group XL (b)] The concentration of condensation nuclei in gaseous samples is determined by periodically admitting the samples to a chamber and expanding them therein by first and second valve means operated simultaneously and using radiant energy means to produce electrical signals as a measure of the number of nuclei present in the samples. Samples of air are drawn through a humidifier 9 into a chamber 1 and expanded therein by two mechanicallycoupled rotary valves A and B and a pump 10. The humidifier saturates the incoming air so that upon cooling by rapid expansion through a pressure differential defined by the atmosphere and a control valve 11, the water vapour condenses in droplets upon any nuclei present in each sample. These are illuminated by light from an incandescent lamp 2 and light scattered by the droplets is measured by a photo-cell 4. The valves A and B are continuously rotated about five times per second and in each cycle a sample is introduced into the chamber, is allowed to settle and then to expand (during which expansion the photo-cell signal occurs) before the chamber is purged of the sample. The periodic signal from the photo-cell may be connected to an indicating or recording instrument. Specification 685,965 is referred to.
Patent GB-790045-A (GB)
Title: Oil-soluble sulphonates and sulphonamides and processes for their production
IPC: C07C311/02
Filed: 1954-06-24
Abstract: Oil-soluble sulphonates or sulphonamides, some of which are claimed per se, are prepared by subjecting a substantially olefine-free aliphatic hydrocarbon fraction, the hydrocarbons of which are predominantly straight-chained and consist wholly or predominantly of C22 to C26 hydrocarbons, to sulphochlorination at a temperature between 20 DEG  and 50 DEG  C. with chlorine and sulphur dioxide, if desired in the presence of a solvent such as carbon tetrachloride, stopping the reaction when between 15 and 25 per cent by weight of the initial hydrocarbons have been sulphochlorinated and converting the sulphonyl chlorides by saponification with an alkali or alkaline earth to the corresponding sulphonates or by treatment with ammonia to the corresponding sulphonamides; the term "predominantly" denotes predominance by weight.  The products may contain chlorine.  In an example, a substantially olefine-free Fischer-Tropsch gatsch B.R. 370-410 DEG  C. is sulphochlorinated at 43 DEG  C. until the product has a saponification number of 80.  A portion of the product is saponified with a slurry of magnesia in aqueous caustic potash and then worked up to isolate a mixture of potassium and magnesium sulphonates; another portion of the sulpho chlorination mixture is treated with gaseous ammonia and the product is worked up to isolate a mixture of sulphonamides.  The saponification procedure described may also be applied to obtain calcium or other alkaline earth metal sulphonates; alternatively, the sodium salt may be prepared and treated with sulphuric acid to liberate the free sulphonic acids which are then neutralized with an alkaline earth metal base.  The sulphonates and sulphonamides may be used in lubricating and cutting oils, floor polishes and cleaning compositions.ALSO:Lubricating oils, cutting oils and floor polishes comprise a detergent additive, derived from substantially olefine-free aliphatic hydrocarbon fractions, the hydrocarbons of which are predominantly straight chained and consist wholly or predominantly of C22-26 hydrocarbons, by incomplete sulpho chlorination of the hydrocarbon fraction and reaction of the product with an alkali or alkaline earth to produce the sulphonates or with ammonia to produce the sulphonamides (see Group IV (b)).  The products may contain chlorine.  An example describes sulphonamides and mixed potassium and magnesium sulphonates derived from a Fischer-Tropsch gatsch B.R. 370-410 DEG  C.  The calcium sulphonates are also mentioned.
Patent GB-1285677-A (GB)
Title: Nuclear reactor installations
IPC: G21C15/243
Filed: 1971-06-02
Abstract: 1285677 Cooling reactors SULZER BROS Ltd 2 June 1971 18642/71 Heading G6C In a boiling water nuclear reactor, circulation of water is effected by pumps connected to turbines driven by the flow of reactor feed water. The turbines are connected in series in the coolant flow, outside the reactor pressure vessel 103. The reactor core, 102, is cooled by the pumps 113, pipe 130, turbines 106 and pipe 133. The pumps 104 are driven by the turbines. The pumps 113 are fed from the condensate of turbine 116 driven by steam from vessel 103.
Patent GB-275409-A (GB)
Title: Improvements in or relating to surveying instruments
IPC: G01C17/12
Filed: 1926-07-29
Abstract: 275,409. Sander, M. July 29, 1926. Tacheometers. - A tacheometer &c. is provided with a system of slides and rotary scales by which the distances and azimuth angles measured by the telescope can be transferred to a pencil &c. which records on a drawing sheet the outline of the ground surveyed. The telescope 70 is associated with a system of three coaxial discs 1, 2, 3 and a slider 12. The discs 1, 3 are respectively fixed to the telescope and to a fixed frame 6, and the disc 2 can be locked to either of these two discs. The discs 2, 3 are provided with scales and the discs 1, 2 with verniers. Fixed to the discs 1 by a nut 8 is a slide 10 bearing a scale 16 and rotatably mounted in a ring 14 carried by the frame 6. A nut 12 extends between these slides and can be traversed along them by a screw 11; this nut carries a vernier 15 cooperating with the scale 16. Below the screw 11 is a similar screw 25 mounted in a slide 24 and passing through a nut 27 which can be clamped to the nut 12. By means of a screw 28 the screw 25 can be clamped to a bearing-block 26 within the slide 24 and when this clamp is tightened, rotation of the screw 25 causes the slide 24 to move to or from the nut 27. The slide 24 is provided with a scale 22, and the nut with a co-operating vernier 23. Below the screw 25 is another system of discs 17, 20, 21, similar to the system 1, 2, 3, the discs 21 being secured to the slide 24, and the disc 20 being adapted to be clamped to either of the discs 17, 21. The disc 17 is mounted in slides 18, 19 so that it can be displaced, without rotating, across the plotting table. These slides carry verniers 55 - - 56<1> co-operating with co-ordinate scales 32 - - 33<1> to which they can be fixed by clamps 57, 57<1>. These scales are adjustable in the frame 30 and can be clamped thereto. The disc 17 carries the pencil 46 which plots on the table 38 adjustably mounted on the bed 34 which also carries the frame 6. This bed is rotatably mounted on a base-plate 44 which is fixed to a tripod &c. Instructions for using the instrument are given in the Specification.
Patent GB-977087-A (GB)
Title: Preparation of ethylene dichloride
Inventor: SMITH HARRY
IPC: C07C17/156
Filed: 1962-05-16
Abstract: Ethylene dichloride is prepared by heating a mixture of dry ethylene and dry oxygen or dry ethylene and dry air with anhydrous ferric chloride at a temperature of at least 250 DEG C. Other metal chlorides may additionally be present, potassium chloride and cupric chloride being specified.  The mixture of chlorides may be supported on a porous inactive granular material of large surface area.  The ferric oxide formed during the reaction may be reacted with a chlorine-containing compound such as ammonium chloride or hydrogen chloride to regenerate ferric chloride and thus give rise to a cyclic process. Examples are given in which the catalyst is ferric chloride/potassium chloride/cupric chloride supported on silica granules.ALSO:A mixture of ferric chloride, potassium chloride and cupric chloride, suitably in the ratio 1 g. atom of Fe:0,8 to 1,2 g. atoms of K:0,20 to 0,40 g. atoms of Cu, preferably supported on a porous inactive material in granular form having a large surface area such as silica or alumina, is used in the conversion of ethylene to ethylene dichloride (see Division C2).  During the reaction the ferric chloride is converted to ferric oxide which may be treated in a separate stage with a chlorine-containing compound to regenerate ferric chloride.  In examples, 20 g. of a ferric chloride/potassium chloride/cupric chloride mixture is supported on silica granules of 0,50 to 1,0 mm. size in a fixed bed 8 cm. deep, the ratio of Fe : K : Cu (in g. atoms) being 1 : 1 : 0,3.
Patent GB-925361-A (GB)
Title: Improvements in the refining of iron
IPC: C21C5/52
Filed: 1959-06-03
Abstract: A method of producing steel in an electric furnace comprises having in the furnace a melt containing at the most 1.5% C. at a temperature of at least 1500 DEG  C. and charging molten pig iron and iron ore in such a manner that the carbon content is never in excess of 1.5%, the temperature never below 1500 DEG  C. and the carbon content and temperature do not change by more than 0.3 and 50 DEG  C. respectively during any five-minute period.  The pig iron and ore may be added simultaneously or alternately and in the latter case the ore may be added first in such quantity that it will not oxidize more than 50% of the carbon content of the pig iron to be added.  The pig iron may be partly refined before addition to the furnace.  Lime may be added with the iron ore, but the volume of slag on the surface of the metal should be maintained at a minimum.
Patent GB-818865-A (GB)
Title: Improvements relating to air and water heaters
Inventor: DRURY WALTER ROY
IPC: F24H6/00
Filed: 1956-06-20
Abstract: 818,865. Hot-water boilers; heating air. MASON Ltd., W. F. June 20, 1957 [June 20, 1956], No. 19061/56. Classes 64(1) and 64(3) Water in a boiler 1 surrounds an oil- or gas-fired cylindrical combustion chamber 5 and its flues 4 and also surrounds tubes 3 through which air to be heated by the water is blown by a fan 11 from an inlet 13 extending from a casing 8 in which the boiler is located. The fan 11 is controlled by a room thermostat and the heated air passes through an outlet 10 to an opening in the casing 8 for spaceheating in a building, railway train or vehicle. Baffles, Fig. 2 (not shown), in the water-space are arranged laterally at the top of the nest of air-tubes 3 to direct cooler water down at the sides of the boiler 1 which has external welded ribs 2 for strengthening. An asbestos cement pipe 7 conducts the flue gases from a box 6 at which the flues 4 terminate and which has a cleaning-door. The combustion chamber 5 has a glass-windowed door 9 and its burner is controlled by a thermostat in the water. For the water there are side inlets 15 to the boiler and a top outlet 14 from which the hot water may pass to a central heating system controlled by a thermostatic valve and to a draw off supply system which may be of the indirect type and contain a thermostat. The boiler may draw heat from or supply it to an engine cooling system.