baber/WOPTO huggingface dataset:
Patent GB-316278-A (GB)
Title: A process for the removal of ammonia, and sulphuretted hydrogen from gases
IPC: C10K1/08
Filed: 1928-11-30
Abstract: 316,278. Hansen, C. J., (Assignee of Koppers Akt.-Ges., H.). July 28, 1928, [Convention date]. Addition to 309,116. Materials for purifying.-A modification of the process according to the parent Specification consists in the separate scrubbing of ammonia, containing gas, and ammonia-free gas, with metal thionate and hydroxide liquors respectively. The spent liquors are mixed and then divided into two portions and revivified, the one by treatment with sulphurous acid and the other with air or oxidizing gas, sulphur being obtained by filtration. An ammonia-containing gas may be treated with the thionate liquor and then with the hydroxide liquor, or ammonia may be removed by cooling and washing with water, and then added to the thionate liquor. Different gases, e.g. coal distillation and producer gas may be treated with liquors containing thionate and hydroxide respectively, the former liquor also usually containing some hydroxide to remove excess of hydrogen sulphide. Water gas may be treated exclusively with hydroxide liquor. Or the same liquor may be used and the ammonia required for treating the ammonia-free gas is abstracted from the ammonia-containing gas. Specifications 299,765 and 301,061 are referred to.
Patent GB-627520-A (GB)
Title: Improvements in or relating to paper-making machines
IPC: D21F9/04
Filed: 1946-11-29
Abstract: 627,520. Pulp feed of paper-making machines. MILLSPAUGH, Ltd., and HEYS, R. C. Nov. 29, 1946, No. 35407. [Class 96] Pulp is fed to the wire 16 of a paper-making machine through a distribution box 13 having a passage 19, one side of which is closed by an arc of a perforated suction breast roll 14 having a suction-box 46 covering holes in the roll opposite the upper part of the passage 19. Hydrostatic pressure in the lower part of the passage 19 operates through adjacent holes in the roll 14 and may cause water to flow freely through holes in advance of the suction-box. The other side of the passage 19 has adjustable guide walls 22 and 23 which are also boundaries of an overflow trough 31. The suction-box 46 may have compartments 48, 49 and 50 and pressure may operate between pulp in the passage 19 and water in the compartment 48, the depth of which is controlled by a sluice in the suction line. Pulp in the box 13 may be agitated by blades 41, by steam jets or by pulsating the suction in the compartment 48 by a reciprocating valve in the suction line.
Patent GB-448625-A (GB)
Title: Improvements in heat insulated refrigerated containers
IPC: B65D81/38
Filed: 1934-12-10
Abstract: 448,625. Refrigerators. WARE, S. D., 24c, Clifton Gardens, Maida Hill, London. Dec. 10, 1934, No. 35425. [Class 29] Refrigerator boxes or cases for transport comprise concentric metal vessels 1, 2, the outer being lined and the inner covered with solid insulation such as vulcanized expanded rubber, preferably cemented in place and covered by metal foil, as described in Specification 401,670, and the two vessels being held firmly in spaced relation by wood or vulcanite wedges 12 and end pieces 3 of wood. The storage compartments 14 are located in the middle of the inner vessel and refrigerant 16 such as solid carbon dioxide is located in containers 9 in end compartments 15, the refrigerant being in thermal contact with removable partitions 6 at the ends of the storage compartment and insulated at the other faces of its containers. Access to the refrigerant and to the storage space is provided by end doors 4, and preferably the refrigerant containers are held firmly in place by end packing elements. The refrigerant containers may be mounted in upright arms 8, Fig. 6, in a cage 7, the arms 8 being adjustable by a screw from the exterior or by a thermostat to bring the refrigerant more or less into contact with the partitions. Heat insulating pads may be placed between the refrigerant and the panels 6 to lessen the cooling effect. The evolved gas may circulate between the vessels, the interspace being packed with kapoc &c. Where a thermostat is used, its sensitive element is in contact with the external wall so as to respond to variations of atmospheric condition.
Patent GB-817932-A (GB)
Title: New compounds derived from tetrahydro-oxazine compounds and theophylline or halogen-theophyllines
IPC: C07D265/30
Filed: 1955-12-09
Abstract: Water-soluble tetrahydro-1 : 4-oxazine derivatives are prepared by reacting a tetrahydro-1 : 4-oxazine of the formula <FORM:0817932/IV (b)/1> (wherein R1 is phenyl or substituted phenyl such as 4-hydroxy-, 3 : 4-dihydroxy- or o-chloro phenyl, R2 is an alkyl radical of at most 3 carbon atoms and R3 is hydrogen, an alkyl radical of at most 3 carbon atoms or hydroxyethyl) with theophylline or an 8-halogenotheophylline, preferably in molar proportions.  The reactants may be heated alone to 128 DEG  to 130 DEG  C. or they may be refluxed in a solvent, e.g. an organic solvent such as methanol, or water, or they may be intimately ground together alone or in presence of a solvent, e.g. acetone.  Alternatively, a salt of the tetrahydro-1 : 4-oxazine, e.g. its sulphate or hydrosulphate, is reacted with the theophylline compound in the presence of a quantity of an alkaline earth metal hydroxide equivalent to the quantity of sulphate present in a solvent, e.g. water or methanol, and the alkaline earth metal salt formed is removed.  The product may be recovered from these processes by evaporation of the solvent where used or it may be isolated as an aqueous solution.  Optically active tetrahydro-1 : 4-oxazines may be used in these processes.  In examples: (1) 2 - phenyl - 3 - methyl - tetrahydro - 1 : 4 - oxazine and 8-chlorotheophylline are ground together to give a water-soluble product; (2) 2-(21 - chloro - phenyl) - 3 - methyl - tetrahydro - 1 : 4-oxazine and 8-chlorotheophylline are boiled together in methanol and the solution evaporated to give a solid product; (3) 2-(41-hydroxyphenyl) - 3 - methyl - tetrahydro - 1 : 4-oxazine hydrosulphate and theophylline in methanol are mixed with a concentrated baryta solution and boiled to give, on filtering off the barium sulphate, an aqueous solution of the required compound; and (4) 2-phenyl-3-methyl-4-hydroxyethyl - tetrahydro - 1 : 4 - oxazine and 8-chlorotheophylline are ground together in acetone to give a solid product.ALSO:Therapeutic compositions comprise aqueous solutions of compounds formed by the reaction of tetrahydro-1 : 4-oxazines of the formula <FORM:0817932/VI/1> (wherein R1 is phenyl or substituted phenyl such as 4-hydroxy-, 3 : 4-dihydroxy- or o-chloro-phenyl, R2 is an alkyl radical of at most 3 carbon atoms and R3 is hydrogen, an alkyl radical of at most 3 carbon atoms or hydroxyethyl) with theophylline or an 8-halogeno-theophylline. Examples are given.
Patent GB-407482-A (GB)
Title: Improvements in and relating to roll-up lattice shutters or grilles
IPC: E06B9/18
Filed: 1932-12-15
Abstract: 407,482. Window shutters; guards. GIBSON, W. P., Radnor Works, Strawberry Vale, Twickenham, Middlesex. Dec. 15, 1932, No. 35566. [Class 20 (iii).] Relates to roll-up lattice shutters or grilles of the kind described in Specification 193,323, [Class 20 (iii)], wherein a plurality of elements, each comprising a circular portion 1, Figs. 2 and 9, a bar 5 with end lugs 4, and a split tubular member 2, are hingedly connected together. According to the invention, the bar 5 and portion 1 are interconnected by a web or webs 6 so arranged that the bar can slide freely through the split tubular portions of adjacent units when the lugs thereon are in engagement with the splits in the tubular portion. In the form shown, the rigidity of the extended shutter is increased by enlarging the ends 7 of the members 2, and by making the distance between the inner edges c, d of the lugs 4 just sufficient to accommodate the members 2. The edges of the shutter are completed by a chain-like structure composed of alternating elements 13, 20, which are connected together and to other units by bars 11 and members 12 of similar construction to the members 5 and 2, respectively. The sides of the central recess 8 in the member 2 through which a pair of lugs 4 project, are parallel in the construction illustrated ; in a modification, the edges thereof and the sides of the lugs are tapered so that the units are firmly held together when the shutter is extended, but are eased somewhat when the shutter is coiled. In a further modification, the grille is strengthened at intervals by units 14, Fig. 10, having non-split tubular portions 15 through which passes a rod 16 secured to the sides of the shutter by nuts 17. Each unit 14 is provided with either a cross-bar 5 or a split member 2, for connection to adjacent units in the manner described above.
Patent GB-508079-A (GB)
Title: Process for treating textile materials
IPC: D06P1/642
Filed: 1937-12-23
Abstract: 508,079. Treating textiles ; dyeing. I. G. FARBENINDUSTRIE AKT.-GES. Dec. 23, 1937, No. 35626. Convention date, Jan. 14. [Classes 2 (iii) and 15 (ii)]. Textile materials are treated with a product of the reaction of an aliphatic or cycloaliphatic amine containing a radical having more than 8 carbon atoms with a compound obtainable by causing a 1.2-alkylene oxide to react with cyanamide or a salt thereof. These substances are useful as washing agents preferably in acid bath, for imparting a full feel to artificial silk, for enhancing the fastness of dyes, or in any textile treatment utilizing, dispersing agents. In examples: (1) Viscose silk is treated with a solution of the imidazoline derivative from 2 mols. of stearylamine hydrochloride and amino - chloromethytoxazoline hydrochloride, washed and dried ; a full feel results. (2) A viscose material dyed with'Direct Deep Black . EW extra is treated with a solution of stearylamino-aminooxazoline hydrochloride the dyeing is rendered fast to.water.
Patent GB-522381-A (GB)
Title: Improvements relating to fastenings for vehicle doors
IPC: E05B65/40
Filed: 1938-12-07
Abstract: 522,381. Vehicle door fastenings. WILMOTBREEDEN, Ltd., and SMYE, A. Dec. 7, 1938, No. 35660. [Class 44] A safety fastening for the rear door d of a motor car comprising a bolt slidably mounted in the central pillar b and shot into engagement with a keeper g on closure of the front door c has the bolt formed in two parts e, f, the former telescoping in the latter, with a compression spring k between them so that the door d may be slammed after the door c has been closed. The bolt is mounted in a tubular case a let into the pillar, and a second compression spring h. mounted between a guide bush j and a collar i on part e retracts the bolt and projects the rounded end of part f when the door c is opened. So that the fastening may be rendered in operative at will the edge of door c may have an aperture, not shown, which receives the projecting end of part f when the door is closed, unless the aperture has been covered by a slidable or pivoted abutment plate. Alternatively, the free edge of the rear door may have a pivoted or slidable plate which can be moved to a position preventing engagement of the bolt with keeper g.
Patent GB-155754-A (GB)
Title: Improved abrading sheet
IPC: B24D11/00
Filed: 1920-12-21
Abstract: 155,754. T³rk Ges. March 18, 1914, [Convention date]. Drawings to Specification. Emery and sand cloth.-The fabric to which the emery or other abrasive powder is applied is formed by weaving cellulose yarn made of fibrous paper pulp, which, being devoid of fat, adheres to the glue or other adhesive employed to secure the abrasive to the fabric.
Patent GB-1110470-A (GB)
Title: Vacuum sealing apparatus
Inventor: BARGERY CYRIL JOHN
IPC: B01L1/02
Filed: 1966-08-10
Abstract: 1,110,470. Vacuum locks for vacuum chambers. 20TH CENTURY ELECTRONICS Ltd. June 13, 1967 [Aug.10, 1966), No. 35830/66. Heading F1X. In vacuum sealing apparatus for loading specimens into a vacuum chamber the specimen is transferred in a piston cavity 12, Fig. 2, from a first low vacuum chamber 75 to a second high vacuum chamber 77 and then is received in a second piston cavity 13 for transference to an ultra-high vacuum cavity 82, Fig. 4, releasable seals 76, 80 being provided between the first and second chambers and the second and third chambers, the gas conductance between the chambers being limited by the fit of the pistons in their bores. Operation: Specimen 27, Fig. 2 is mounted on a hollow carrier 26 which is gripped by fingers 19 which are opened and closed by a spring-loaded button 24, the carrier being withdrawn into sleeve 17 of mechanism TM1 which is then attached to housing 11. Chamber 75 is evacuated and piston 28 is moved by handles 33 to align cavity 12 with axis T1, sleeve 31 being raised and the vacuum seal at 76 being broken causing some loss of vacuum in chamber 77. Handle 18 is pushed in to transfer carrier 26 into cavity 12 until a spring- loaded catch 78 engages a groove in carrier 26. Fingers 19 are closed and handle 18 withdrawn leaving carrier 26 in cavity 12. Cavity 12 is then aligned with axis T3 (in Fig. 2 position) the seal at 76 being restored and chamber 77 being reevacuated to a high vacuum. Fingers 40 Fig. 4 are advanced until they are fitted inside the carrier 26' by rotating knob 61 and lead screw 55. When a handle (43), Fig. 5 (not shown) is rocked the sleeve 46 is rotated about its axis to press inwardly or to release tongue 49 on bell crank 50 which is pivoted to rod 42, the latter being moved against the action of spring 54 to close fingers 40. Carrier 26 is then transferred on axis T3 to cavity 13 at the position 26", Fig. 2, the carrier being held in this position by catch 79. After fingers 40 have been retracted the mechanism TM4 is operated by rotation of a screw-threaded sleeve 71 to align cavity 13 with axis T5, the carrier then being at the position 26"'. The vacuum seal at 80 is broken during this movement and chamber 82 is connected by bore 87 to the ultra-high vacuum. Thereafter carrier 26 is transferred by mechanism TM5 (similar to mechanism TM3) through bore 83 into the ultra-high vacuum chamber. A cavity 12', which is brought into alignment with the transfer axes by rotation of an eccentric cylinder 38, is provided so that an incoming specimen and an outgoing specimen can pass each other in the second chamber.
Patent GB-1020072-A (GB)
Title: Improvements in and relating to lanterns
Inventor: KING-YAN LAI
IPC: F21V21/14
Filed: 1963-09-12
Abstract: 1,020,072. Electric battery lamps. WORLDLIGHT MANUFACTORY Ltd. Sept. 14, 1964 [Sept. 12, 1963], No. 36034/63. Heading F4R. A lantern is provided with a combined stand and carrying handle comprising a pair of channel-shaped members pivoted to one another for movement between a closed position in which they are angularly spaced to form a stand, at least one of the members being pivotally attached to the body of the lantern. As shown, a channel-shaped member 2 is pivoted to the lantern body at 6, 7 and a smaller member 3 is pivoted to the member 2 close to the pivots 6, 7, and carries a spring 10 tending to spread the parts 2, 3. A pivoted linkage 11 limits the degree of spread. To hold the parts 2, 3 closed for use as a handle, interengaging dimples 16, 17 are provided. The members 2, 3 may be of the same size and may be carried by common pivots.
Patent GB-1393834-A (GB)
Title: Method of producing high-grade ferronickel
IPC: C22B23/02
Filed: 1973-07-30
Abstract: 1393834 Obtaining ferronickel PACIFIC METALS CO Ltd 30 July 1973 [1 Sept 1972] 36100/73 Heading C7D High-grade ferronickel is produced directly from nickeliferous ores by mixing the ores with a sulphur-containing substance and smelting in an electric furnace. Sufficient sulphur-containing substances should be used to provide between 0.4 and 5% in the ferronickel product; suitable substances are high-sulphur fuels e.g. oils, high-sulphur reducing materials e.g. low-grade coals, elemental sulphur, gypsum, pyrites, nickel sulphide ores and high-sulphur wastes obtained in desulphurization of steels and ferro-alloys. The mixing of S- containing substance with the ore can take place before, during or after the treatment of the ore in a calcining or preliminary roasting furnace. The crude ferronickel may be desulphurized using calcium carbide.
Patent GB-394032-A (GB)
Title: Improvements in or relating to radio or other high frequency signalling systems
IPC: H03J7/04
Filed: 1931-12-31
Abstract: 394,032. Valve generating and modulating circuits. SOC. FRANÃAISE RADIO-ELECTRIQUE, 79, Boulevard Haussmann, Paris. Dec. 31, 1931, No. 36110. Convention date, Jan. 10. [Class 40 (v).] The invention relates to modulating systems and to a method of stabilizing the frequency of a valve transmitter. Fig. 1 shows a tuned circuit 1, 2 supplied with a constant source 3. Energy from the coupling 4 is amplified by the valve 6 and the coupling impedance 8 is of a low value so that the output 5 of the valve 7 is in quadrature with the energy in the circuit 1, 2. The modulating source is applied to the impedance 10 to vary the amplification of the valve 6 which varies the phase of the output 5 and thus the apparent reactance of the circuit 1, 2 to give phase modulation. The couplings to the valve 6 and the intervalve coupling may alternatively be resistances, Fig. 3 (not shown), or capacities or resistancecapacity or choke-capacity coupling. The modulating source may be applied to one arm of a Wheatstone bridge one diagonal of which forms the input of the valve 6 while the coupling 4 is connected across the other diagonal,. Fig. 2 (not shown), or alternatively a screen grid valve may be used in place of the triode 6 and the modulation be applied to the screen grid. The tuned circuit 1, 2 may constitute the intervalve coupling of a high frequency amplifier arranged for phase modulation by variation of the reactance of the tuned circuit 1, 2 through the reactive coupling, Fig. 4 (not shown). Fig. 6 shows the circuit 1, 2 in the output of an oscillator 3 so that variation of the reactance of the circuit 1, 2 by the reactive coupling circuit 4, 5 produces frequency modulation. If, in addition to the phase change in the reaction coupling produced by the valves 6, 7, amplitude modulation is produced by choke 17 and modulating valve 18 one side-band of the carrier is suppressed as is shown mathematically in the Specification. With this arrangement only a small percentage modulation is obtainable, but by suitably biased highfrequency amplifiers the modulation percentage may be increased, Fig. 8 (not shown). The arrangements described are applicable to telegraphic transmission in which a code is utilized in which different frequencies designate different letters, as described in Specification 316,298, [Class 40 (iii), Telegraphs, Electric]. A method of stabilizing a transmitter is shown in Fig. 9 in which a " standardization " circuit 8 is used in the reactive circuit 4 .. 7, so that the sense of the reaction changes when passing through resonance and on departure from resonance produces a reactive effect such as to stabilize the frequency. The circuit 8 may comprise a piezo-electric crystal.
Patent GB-860807-A (GB)
Title: Improvements in or relating to methods of manufacturing vacuum-tight envelopes
IPC: H01L23/045
Filed: 1957-11-20
Abstract: 860,807. Semi-conductor devices. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 20, 1957 [Nov. 23, 1956], No. 36150/57. Class 37. [Also in Group XXII]  In the manufacture of an envelope for a semiconductor such as a transistor, a copper cap 2 is joined to an iron base 1 having an annular groove 3 milled therein. Upon application of pressure and due to the work hardening of the copper the walls of the groove become closed in at 6, 7, Fig. 3. The base may have a central portion of copper soldered thereto, Fig. 8 (not shown) or the cap may be of steel and the base of copper, Fig. 4 (not shown). In other expedients, Figs. 5, 7 (not shown), a copper cap and a copper base having two parallel holes are joined to the same on opposite sides of an iron plate. The groove 3, Fig. 6, may be provided in an iron insert 21 fixed in a copper base plate 20. Two concentric grooves, Fig. 9, are provided in an iron base 30 for forming a vacuum-tight joint with the cap. The latter encloses a transistor comprising a protrusion 31 of the base 30, plated successively with copper and gilt and secured by a disc 32 of indium to a disc 33 of germanium. The latter is connected by a nickel strip 35 with a base contact pin 37. A second indium electrode 34 is joined to the germanium disc and is connected by a copper strip 39 with an emitter contact pin 38. The envelope constitutes the contact for the collector 32.
Patent GB-164302-A (GB)
Title: Manufacture of borneol
IPC: C07C35/30
Filed: 1920-12-24
Abstract: In the process for the manufacture of borneol described in the parent Specification by heating oil of turpentine with tetrachlorophthalic acid and hydrolyzing the resulting ester, the formation of the bornyl tetrachlorophthalate is facilitated by employing as solvent the secondary products formed in the reaction of a previous operation. Specification 158,533 is referred to.
Patent GB-1475745-A (GB)
Title: Treatment of oil-in-water emulsions before and/or during ultra filtration
IPC: C02F1/40
Filed: 1975-09-08
Abstract: 1475745 Treating oil-in-water emulsions DORR-OLIVER Inc 8 Sept 1975 [19 Aug 1974] 36438/74 Heading ClC [Also in Division C5] Oil-in-water emulsions are separated by adding an emulsion stabilizer to the emulsion before ultrafiltration. The addition of the emulsion stabilizer increases the rate of flow through the filter membrane. Specified emulsion stabilizers are alkali metal phosphates, silicates, carbonates and borates and organic surface active agents, e.g. a condensate of ethylene oxide with an amine, alcohol or phenol or triethanolamine oleate. In the examples, the emulsions treated are effluent from a metal degreasing plant and rolling mill lubricants.
Patent GB-357866-A (GB)
Title: Improvements in or relating to radio or other high frequency coupling arrangements
IPC: H03H7/01
Filed: 1930-12-03
Abstract: 357,866. Valve amplifying circuits; filter circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.-(Assignees of Braden, R. A. ; 18, Jacobus Place, New York, U.S.A.) Dec. 3, 1930, No. 36514. Convention date, Dec. 3, 1929. [Classes 40 (iii) and 40 (v).] A band-pass coupling includes two tuned circuits and means for diverting current with a rise in frequency from the magnetic coupling between them, so that the accepted band-width is practically constant at all frequencies. In Fig. 1, the two tuned circuits are comprised by condenser 2, coils 3, 4, and condenser 7 and coils 5, 6, the coils 4, 5 being coupled together and shunted by resistances 9, 10 respectively, or in a modification, Fig. 2 (not shown), by capacities. In a further modification, Fig. 3, stated to be more suitable for coupling three-electrode valves, the first tuned circuit comprising condenser 2, coil 21 and coupling coil 4 shunned by condenser 11, is coupled to a coil 20 in the plate circuit of valve 1, and the output from the second tuned circuit comprising condenser 7, coil 22, and coupling coil 5 shunted by condenser 12, is taken from the junction of condenser 7 and coupling coil 5.
Patent GB-1526054-A (GB)
Title: Adjustable throttle for gases and vapours
IPC: F16L55/027
Filed: 1975-09-05
Abstract: 1526054 Fluid regulation WELLAND AND TUXHORN 5 Sept 1975 [10 Sept 1974] 36732/75 Heading G3H [Also in Division F2] An adjustable throttling device for gas or vapour, e.g. steam, comprises inner and outer perforated cylinders 7, 10 with a pack 12 of perforated sleeves 13 or a spirally-wound perforated sheet located therebetween. The holes in adjacent sleeves are staggered so that fluid flowing radially from the central cylinder 7 to the outer cylinder 10 follows a tortuous path and never exceeds one third of the speed of sound, whereby noise reduction is facilitated. The holes in the cylinder 7 may be arranged in helical patterns. Various formulae are given for determining the dimensions of the pack.