baber/WOPTO huggingface dataset:
Patent GB-719708-A (GB)
Title: Improvements in or relating to clamping devices for props and the like
IPC: E21D15/42
Filed: 1951-09-05
Abstract: 719,708. Pit props. EGGEMANN, W., and CAMPENHAUSEN; E. VON, [trading as SCHWARZ KOMM-GES., H.]. July 25, 1952 [Sept. 5, 1951], No. 20903/51. Class 20 (2) In the clamping device for a telescopic pit prop of the kind having a drag wedge 13, Fig. 1, between the wedge face 16 and the supporting surface 19 on, the prop lock 3 is located a space to hold lubricant, this space being inaccessible directly from the exterior of the device and being connected to a duct 24 terminating in. a grease nipple 23. The lubricant holding space may comprise a slot or groove on the wedge face 16 and for the surface 19 but as shown, the face 16 presses against the surface 19 via sliding plates 17, 18 which are formed with apertures 25, 26, Fig. 2, comprising the lubricant holding space. The apertures 25, 26 are so arranged one above the other that whatever the relative positions of the plates, the apertures are enclosed by the adjacent members of the clamping device and the extremities 27, 28 of the apertures never coincide. A cam bolt 5, cross wedge 6 and pressure piece 8 provide the initial clamping pressure. Friction linings 11, 14 are provided. Specification 677,122 is referred to.
Patent GB-319756-A (GB)
Title: An improved submarine cable
IPC: H01B7/14
Filed: 1929-07-08
Abstract: 319,756. Felten & Guilleaume Carlswerk Akt.-Ges. Sept. 28, 1928, [Convention date]. Insulating coverings for cables and conductors. -A submarine cable comprises a copper conductor a insulated with a layer b of gutta-Geutzch or similar substance used instead of guttapercha. A lead sheathing c is pressed over the layer b, and covered with jute d and armouring e.
Patent GB-678337-A (GB)
Title: Improvements in photo-electric devices
IPC: H01L31/08
Filed: 1950-08-24
Abstract: 678,337. Light-sensitive devices; radiation detectors. FASSBENDER, J., MOGLICH, F., ROMPE, R., and DAMZOG, K. Aug. 24, 1950, No. 20964/50. Class 40 (iii). In a cell responsive to light or radiant energy, such as X-rays, alpha-rays or beta-rays and employing a single crystal of a compound of a divalent metal with an element of the oxygen group, the electrical connection between the electrodes fixed to the crystal and the connecting terminals consists of a metal, a metal compound or a metallic alloy. In the construction shown, the crystal 1 is mounted on a disc 4 provided with an aperture 5 and carries electrodes 3 having a gap 2 for the incident radiation. The electrical connectors are constituted by bronze strips 6 secured to the base 4 by screws 7. The crystal is held in position on the base 4 by adjusting screws 9, and the ends of the strips 6 are provided with spherical cups of tin to eliminate or reduce damage to the electrodes. In a modification, Fig. 3 (not shown), the electrical connection between the electrodes and the output terminals is effected by a vaporized metallic layer overlying the electrodes and the heads of the terminal pins.
Patent GB-300229-A (GB)
Title: Improvements in or connected with means for indicating the purity of liquids
IPC: G01N27/07
Filed: 1927-08-09
Abstract: 300,229. Ranger, M. L. Aug. 9, 1927. Liquid resistances.-In apparatus for indicating the purity of boiler feed water and other liquids by testing its electric conductivity, two electrodes mounted in insulating material are detachably secured to a socket which is formed as a guard for the electrodes and is tightly and positively secured within the vessel or pipe containing the liquid. Two platinum electrodes 5, Fig. 5, are carried by a glass plug 8 detachably locked in a socket 1, Fig. 4, screwing into the vessel &c. Leads 6, 7 extend from the electrodes 5 to a plug adapter 9 to allow connection to leads from a plug connection 17 to an electric supply. An audible or visible warning device or indicator included in the circuit may comprise one or more lamps 18 or an ammeter or galvanometer which may be graduated in degrees of salt concentration. A flattened end 10 on the plug 8 passes through a slot in the socket 1 and, when the plug is rotated, engages beneath shoulders 13 to lock the plug 8. The liquid passes to the electrodes 5 through perforations 3 in a cap or extension of the socket 1. A screwed gland 14 provides a tight joint.
Patent GB-316219-A (GB)
Title: Improvements in or relating to water tube steam generators
IPC: F22B17/10
Filed: 1929-07-09
Abstract: 316,219. Sulzer FrÞres Soc. Anon. July 25, 1928, [Convention date]. Water-tube boilers. -In a boiler with groups of water tubes connected to front and rear headers 4, 3, the headers of two or more groups are so arranged at an angle to one another as to form a roof-like structure above the furnace 14 and additional water tubes and headers 12 are arranged between the main tubes and the boiler setting 15. Water tubes are omitted from the space between the lower parts of the inner inclined headers. Superheaters 11 are arranged between the groups of inclined headers and the vertical headers 12.
Patent GB-319441-A (GB)
Title: Process for the production of ammonium carbonate
IPC: C01C1/26
Filed: 1928-07-20
Abstract: 319,441. Wilson, W. July 20, 1928. Washing processes.-Coal distillation gases. freed from tar, are passed under a pressure of about 50 lb. per square inch through a bath of water or ammoniacal liquor, preferably maintained at a low temperature. A solution from which ammonium carbonate or bicarbonate crystallizes out and is uncontaminated with ammonium sulphide is obtained.
Patent GB-257619-A (GB)
Title: Improved process for introducing sulphocyanide groups into organic compounds
IPC: C07C331/02
Filed: 1926-08-26
Abstract: 257,619. I. G. Farbenindustrie Akt.- Ges., (Assignees of Kaufmann, H. P.). Aug. 27, 1925, [Convention date]. Sulphocyano compounds; disulphides; mercaptans.-The sulphocyano group is introduced into organic compounds by reacting on the compound with a halogen and a solution of an inorganic sulphocyanic salt in water or an acid. The products, which may be transformed without isolation into disulphides by saponification, are useful therapeutically and also as intermediates for the production of dyestuffs. According to the examples, (1) ethylene disulphooyanide is prepared by passing ethylene and chlorine into a solution of sodium sulphocyanide in acetic acid, or by passing ethylene into a solution of sodium sulphocyanide in hydrochloric acid whilst adding a hydrochloric acid solution of bromine; sulphocyano groups may be introduced into acetylene in the same way; (2) an acetic acid solution of bromine is slowly added to a solution of styrol and sodium sulphocyanide in acetic acid; on pouring the mixture into water, 1-phenyl-1 : 2-disulphocyano-ethane separates out; (3) anethol and sodium sulphocyanide are dissolved in acetic acid and bromine slowly added; the addition of water causes the separation of 1-p-methoxyphenyl-1 : 2- disulphocyan-propane,; (4) on addition of bromine to a cooled solution of diphenylamine and sodium sulphocyanide in dilute sulphuric acid, p-disulphocyano-diphenylamine separates out; (5) 5-sulphocyano-salicylic acid is obtained by adding bromine to salicylic acid and sodium sulphocyanide, each reactant being dissolved in formic acid; (6) an acetic acid solution of bromine is poured slowly into a solution of antipyrin and sodium sulphocyanide in acetic acid; the resulting solution of the monosulphocyano derivative of antipyrin is treated with caustic soda, when bis (1-phenyl-2 : 3-dimethyl-5-pyrazolonyl-4) disulphide separates out. Naphthols and naphthylamines may be similarly treated to yield sulphocyano derivatives; thus, a-naphthol gives 4-sulphocyano- and 2 : 4-disulphocyano-1-naphthol, a-naphthylamine yields 2 : 4-disulphocyano-1- naphthylamine, and #-naphthylamine forms 1- sulphocvano-2-naphthylamine. The Specification as open to inspection under Sect. 91 (3) (a) includes also an example according to which p-sulphocyano-aniline is produced by running bromine into an aqueous solution of ammonium sulphocyanide to which aniline has been added, or with a solution of aniline and sodium sulphocyanide in acetic acid; 2 : 4-disulphocyano-aniline can be isolated from the acid filtrate by diluting and neutralizing with soda. It further states that the mercaptans may be obtained by reduction of the disulphides obtained by saponification of the sulphocyano compounds. This subject-matter does not appear in the Specification as accepted.
Patent GB-949213-A (GB)
Title: Improvements in or relating to electric power transformers
Inventor: WILKINS JOHN THOMAS
IPC: H01F27/33
Filed: 1959-06-19
Abstract: 949,213. Transformers. ENGLISH ELECTRIC CO. Ltd. June 17, 1960 [June 19, 1959], No. 21120/59. Heading H1T. To reduce the noise output from a transformer, steel plate cladding is held at a distance from the tank to reflect incident sound waves, the cladding having, by virtue of its dimensions and mounting, a natural frequency substantially less than that of the current in the coils. The cladding plates 18 are supported by horizontal spring strips 15 bolted to brackets 14 themselves welded to tank 10. Springs 15 are bolted to horizontal channel members 16 welded to vertical strips 17 to which are clamped plates 18 by fish plates 21, felt pads 19, 22, providing damping. This arrangement gives considerable vertical, but smaller horizontal, stiffness. Lower edges of plates 18 rest in foam-rubber filled troughs 24. Insulators 12, 13 pass through holes in dome 26, which rests on flexible material on plates 18, and are sealed by rubber diaphragms 27, the oil cooling pipes similarly having rubber diaphragms sealed with an annular clamp (Fig. 5, not shown). The space 23 is filled with energy-absorbing material such as glass-wool. In an alternative arrangement for attaching the cladding to the tank, resilient vertical strips are welded at their free ends to horizontal channel members attached respectively to plates and tank (Fig. 6, not shown).
Patent GB-337801-A (GB)
Title: Improvements in coking retort ovens
IPC: C10B21/20
Filed: 1929-07-09
Abstract: 337,801. Koppers Co., (Assignees of Ackeren, J. van). April 25, 1929, [Convention date]. Coke ovens.-In a vertically-flued coke oven having two burners at different levels in each flue, arrangements are provided by which gas can be supplied alternately to the two sets of burners, while air for decarbonizing and combustion is supplied through the burners during a portion at least of their idle periods. In the oven shown, in which the beating-walls are connected in pairs by cross-over flues 15, gas is supplied from a main 33 through reversing-valves 35, 36 to branch pipes 38, 39, controlled by valves 40, 41 and leading to gas boxes 43, 44 communicating with conduits supplying the upper burners 29, and burners at the base of the flues respectively. The valves 40, 41 are simultaneously operated by a cable 42, and are so set that when the valves 40 are open, and gas is being supplied to the upper burners, the valves 41 supplying the lower burners are closed, and vice versa. On the gas boxes are air inlet valves' 46, 48 and 45, 47, and these are interconnected in pairs by the rocking-levers 49, which are in turn connected in two sets by the operating- cables 51, 52, the arrangement being such that when one valve of a pair is open the other is closed, while in the intermediate position of the lever 49, shown at the right hand side, both valves are closed. In operation, during each half hour reversal period, gas is supplied through the lower burners for fifteen minutes, and for the remainder of the period through the upper burners of the upflow flues, while air is supplied to the idle burners of these flues, preferably for the middle ten minutes of the fifteen minute period.
Patent GB-363347-A (GB)
Title: Improvements in the preparation of calcium sulphate
IPC: C01F11/46
Filed: 1930-07-12
Abstract: Finely divided and apparently amorphous calcium sulphate is obtained by treating suitable calcium compounds other than the sulphate, for example, the mineral or precipitated carbonate, or the oxide or hydroxide with sulphuric acid, with or without sulphates such as alkali sulphates or bisulphates, in such quantity that excess of free acid remains after completion of the reaction, and of a strength insufficient to effect any solution of the calcium sulphate.  Thus, sulphuric acid of specific gravity 1,75 is rapidly added to calcium carbonate in 35-40 per cent excess over that required for neutralization.  Alternatively, a lower excess of oleum or R.O.V. may be added.  The acid should preferably be in excess from the commencement.  Excess acid may be removed by washing, followed if desired by treatment with an alkaline solution, or suitable alkaline earth, as barium hydrate.
Patent GB-239842-A (GB)
Title: Improvements in or relating to scavenging ports of two-stroke cycle internal-combustion engines
IPC: F02B25/00
Filed: 1925-08-24
Abstract: 239,842. Brown, E. Sept. 13, 1924, [Convention date]. Cylinders, passages and ;ports of.-The scavenging air inlets of a two-stroke-cycle - engine are formed half by ports 6 in the cylinder wall, inclined towards the cylinder cover, and half by parallel -cavities 10 in the piston face, bounded by lateral walls. The bottoms of the cavities may be run into the piston faA3e as at 11 and sloped upwards to direct the scavenging air on the curve 25. The inlets may be slightly convergent or divergent and they may be radial or parallel. The width of the cavities is preferably slightly greater than the width of the ports. If the ports are very close together the partitions between them may be formed by inserted plates.
Patent GB-721882-A (GB)
Title: Method of cracking hydrocarbons
IPC: C10G9/00
Filed: 1951-09-07
Abstract: The conversion of hydrocarbons by passing a mixture of the hydrocarbon, as a gas or as atomized liquid, with superheated steam through a heated alloy tube as claimed in the parent Specification, is carried out in the presence of a metallic sulphide or oxide, activated coke or fuller's earth.  Tungsten, molybdenum and nickel sulphides act as saturation catalysts. Zinc, chromium, magnesium and molybdenum oxides act as aromatization catalysts.  These catalysts are prepared in finely-divided form, or in association with carriers such as alumina, diaspore, zirconium oxide or silicate, and then reduced to finely-divided form.  In a preferred method the catalyst is introduced into the reaction tube mixed with liquid hydrocarbon, and is left in a finely-dispersed state on vaporization of the liquid.  The catalyst may also be introduced with the steam, or in a stream of inert gas.  The product gases leaving the reaction zone are quenched and condensed; the catalyst is then separated from the liquid, or is concentrated in a portion thereof, for subsequent recycling to the process.ALSO:The process of cracking hydrocarbons by passing a mixture of the hydrocarbon, as a gas or as atomized liquid, with superheated steam through a heated alloy tube as claimed in the parent Specification, is carried out in the presence of a metallic sulphide or oxide, activated coke or Fullers earth.  Tungsten, molybdenum and nickel sulphides act as saturation catalysts. Zinc, chromium, magnesium and molybdenum oxides act as aromatization catalysts.  These catalysts are prepared in finely divided form, or in association with carriers such as alumina, diaspore, zirconium oxide or silicate, and then reduced to finely divided form.  In a preferred method the catalyst is introduced into the reaction tube mixed with liquid hydrocarbon, and is left in a finely dispersed state on vaporization of the liquid.  The catalyst may also be introduced with the steam, or in a stream of inert gas.  The product gases leaving the reaction zone are quenched and condensed; the catalyst is then separated from the liquid, or is concentrated in a portion thereof, for subsequent recycling to the process.
Patent GB-630593-A (GB)
Title: Doorknob
IPC: E05B1/00
Filed: 1947-08-05
Abstract: 630,593. Knobs. GATE-WAY, Inc. Aug. 5, 1947, No. 21243. Convention date, June 29, 1940. [Class 52 (i)] A door knob has a sheet metal ferrule 1 with a flared end 1b, the rim 1c of which engages a solid core member 2, and a sheet metal knob member 3 formed over the flared end 2b of the core and the rim 1c of the ferrule. In a modification an extension 4a of the core portion abuts the inside of the knob member 3 to reinforce it.
Patent GB-202993-A (GB)
Title: Improved method of giving to air or other gases a definite moisture content
IPC: F24F6/04
Filed: 1923-08-22
Abstract: 202,993. Obermiller, J. Aug. 22, 1922, [Convention date]. Air and gases, moistening.-Air and other gases are given a definite moisture content by passing over correspondingly selected water soluble salts &c. which are kept moistened during the time of contact. Chlorides of potassium, sodium, calcium, and magnesium, nitrates of ammonia, calcium, and zinc, crystallised phosphoric acid, and caustic potash are mentioned.
Patent GB-358155-A (GB)
Title: Improvements in bumpers for road vehicles
IPC: B60R19/26
Filed: 1930-07-14
Abstract: 358,155. Collision guards for road vehicles. WALLACE, W. R., 184, Turney Road, Dulwich Village, London. July 14, 1930, No. 21319. [Class 103 (ii).] A bumper for road vehicles comprises a resilient front portion or portions connected to the ends of a rigid back-bar and also slidingly attached to the bar at points between its ends. Slippers e, Fig. 4, which may be provided with lips or flanges to overhang the edges of the back-bar z, carry pins d supporting the inner ends of bumperettes c and each slipper has a sliding bolt-and-slot connection with the bar a. In another form, Fig. 6, a bumper bar, or bars, c extends over the bar a and is secured to a leaf-spring j slidably connected at its ends to the bar a.
Patent GB-633784-A (GB)
Title: An improved tool-bar for agricultural machines
IPC: A01B51/00
Filed: 1947-08-06
Abstract: 633,784. Agricultural implements. TAMKIN BROS. & CO., Ltd., and BIRD, F. Aug. 6, 1947, No. 21357. [Class 6(i)] Tool supports 9 are provided with jaws 5 which grip parallel bars 1, 2 of a tool frame in such a manner that movement of the jaws relatively to the bars in the direction opposite to the direction of travel of the machine will increase the grip of the jaws on the bars. Pins are provided in slots 11 'to retain the tools in position, holes being provided in the frame to allow lateral adjustment of the tools. Each jaw has two pairs of slots, each pair being spaced apart so as to provide a vernier arrangement with respect to the holes in the frame.
Patent GB-505274-A (GB)
Title: Improvements in or relating to devices for transforming direct current into alternating current
IPC: H02M7/62
Filed: 1937-08-03
Abstract: 505,274. Converting. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 3, 1937, No. 21389. Void. Convention date, Aug. 6, 1936. [Class 38 (ii)] The Specification describes a mechanical inverter or rectifier comprising a vibratory member 1 operated by a coil 2 and co-operating with contacts 8, 9, 10, 11, each connected to one end of respective coils 4, 5, 6, 7, which coils form the primary or secondary winding of a transformer 3 having its secondary or primary winding 12 connected to the A.C. load or supply. The other ends of the coils 4, 5, 6, 7 are connected to one of the D.C. conductors, the other conductor being connected to the member 1. For operating at a different supply voltage a change-over switch may be provided whereby the coils 4, 5, 6, 7 may be connected in series or, if more than four are provided, in series-parallel, " part of the contacts being thrown out of action." The coil 2 may be excited through a separate contact on the vibrator."
Patent GB-1404097-A (GB)
Title: Basic azo dyestuffs processes for their preparation and their  use
IPC: C09B44/10
Filed: 1973-05-07
Abstract: 1404097 Basic azo dystuffs HOECHST AG 7 May 1973 [5 May 1972] 21667/73 Heading C4P Novel dyestuffs of the formula wherein D is the radical of an aromatic or heterocyclic diazo component containing a cycloammonium group other than a 4,5-(3,3- dimethyl - 1 - oxo - tetramethylene) - thiazolyl- (2) radical in which the thiazole nitrogen atom is quaternized, R is H, or a C 1-4  alkyl, cycloalkyl, aralkyl or aryl radical which may be substituted, Hal is Cl or Br, X(-) is an anion, and the benzene ring "a" may contain one or more further non-ionic substituents, excluding the dyestuff of the formula are prepared by direct diazotization and coupling methods or by quaternization methods. One of these involves coupling a compound of the formula wherein R 1  is optionally substituted alkyl or aralkyl, Y is a bivalent atom or group required for completing a 5- or 6-membered ring, R 2  and R 3  are each H or alkyl or, together represent a fused-on aromatic ring, n is zero or 1, and E is H or benzenesulphonyl with an appropriate 3-halo-N-substituted-aniline under oxidizing conditions. A specified intermediate has the formula The novel dyestuffs are suitable for the preparation of writing inks, stamping inks or ball pen pastes, and may also be used in offset printing. They are also suitable for dyeing, printing or mass dyeing of tanned cellulose fibres, silk, hair, leather, coco fibre, jute fibre, sisal, acetate silk, and polyamide, polyester, polyolefin, polyacrylonitrile and polyvinylidene cyanide fibres.
Patent GB-690947-A (GB)
Title: Improvements in and relating to roasting and baking devices
IPC: F24B1/00
Filed: 1950-09-01
Abstract: 690,947. Roasting tins. SOMMERFELD, R., (trading as SOMMERFELD, E.). Sept. 1, 1950, No. 21672/50. Class 66 [Also in Group XI] A baking device for use with liquid or gaseous fuel burners is provided with channels, chimneylike pipes or the like arranged near the periphery of the baking space and separated from the outer wall of the device to conduct the heating gases into the upper part of the baking space. The baking space is formed by an elongated octagonal support 20 and a cover 23. The substantially flat bottom plate 20 has a downwardly bent rim terminating, in a horizontal peripheral flange supporting a corresponding flange on the cover. A square casing 21 with a central circular opening 28 is secured to the underside of the bottom plate 20 and chimney-like pipes 22 mounted on the upper side of the plate 20 communicate with the interior of the casing. An elongated roasting dish 31 is provided with a horizontal flange which rests on turned-in portions at the top of the chimney 22 so that the dish is spaced from bottom plate 20. Outlets 30 for the gases are provided in the bottom part of the cover 23 at points staggered with--respect to the chimneys 22. The bottom plate may be provided with a circular depression, and the outlets may be provided in vertical sides provided on the bottom plate. The chimneys are arranged at the corners of a rectangle or square so that elongated dishes of greater length than the distance between two chimneys can be used. At least the bottom plate is made of a material of good heat conductivity and small heat radiation such as aluminium.