baber/WOPTO huggingface dataset:
Patent GB-360904-A (GB)
Title: Improvements in or relating to the recording and reproducing of sound
IPC: H01B3/00
Filed: 1930-06-06
Abstract: 360,904. Recording sound optically. GRAMOPHONE CO., .Ltd., Hayes, Middlesex, CONDLIFFE, G. E., Thorncombe, Fulmer Road, Gerrards Cross, Buckinghamshire, and BROWNE, C. O., 3, Freeland Road, Ealing Common, London. June 6, 1930, No. 27839/31. Divided on 358,993. [Class 40 (ii).] In the production of optical sound records of the constant width type and adapted for reproduction by transmitted or reflected light, ground noise effect is reduced by recording so that changes in opacity of the crests are less, and changes in opacity of the troughs are greater, than the changes in amplitude of the waves to be recorded. Preferably the crests lie at a substantially constant level of opacity. The record is produced by a beam directed past a ribbon 4 influenced by sound from a microphone 1, and through a slit 8 parallel to the ribbon on to a sensitized surface 9, the ribbon extending through a magnetic field and being itself supplied with a current from a battery 10 which current can be varied, when the connection FG is broken, by movement of a connection T over a resistance 11. Adjustment of the contact T by manual or automatic means in accordance with the amplitude of the sound affecting the microphone varies the neutral position of the ribbon in relation to the slit to increase the light passed to the surface 9 when sounds of smaller-amplitude are being recorded. The ribbon 4 may be replaced by two ribbons or a two-limbed ribbon.
Patent GB-304368-A (GB)
Title: Improvements in checking appliances for use with door springs
IPC: E05F3/10
Filed: 1927-10-20
Abstract: 304,368. Adams, J. S., and Pratt, A. W. Oct. 20, 1927. Operating and controlling doors by springs; checks.-In a check device of the piston and sleeve type for use with door springs the arrangement provides that there is no reduction of volume of space on the piston rod side of the piston in the cylinder when the resistance fluid is being transferred to the other side of the piston. As shown, the check device comprises cylindrical sleeves b, g oil which the outer sleeve b is closed at one end by a cap c and has packing f at the other end, and the inner sleeve g, sliding within the sleeve b, is closed at one end by a cap h and is open at its other end g'. The caps h, c are attached respectively to fixed and movable parts of the door spring mechanism. A piston e, sliding inside the sleeve g, is secured to the cap c by a rod d. When the door is opened the sleeves are extended, oil passing through the passages i to the space j, which increases as the door is being opened. On the return of the door to the closed position, the passages i are closed by valves k and the oil that is compressed in the space j returns to the other side of the piston through the passage l. This passage is restricted by a valve n and a spring-pressed rod o in the piston-rod d, the spring r being adjustable by means of a screw p. A relief valve is provided for excessive pressures, and a filling hole s is also provided.
Patent GB-1509775-A (GB)
Title: Antifungal antibacterial and parasiticidal pharmaceutical compositions containing derivatives of 2-(n-phenyliminomethyl)-5-nitrothiophene
IPC: C07D333/44
Filed: 1975-07-03
Abstract: 1509775 Anti-infective pharmaceutical compositions PHAVIC SprL 5 July 1976 [3 July 1975 3 March 1976] 28116/75 and 08570/76 Heading A5B [Also in Division C2] Topical pharmaceutical compositions having anti-bacterial, anti-fungal and parasiticidal activity comprise a compound of formula (I): wherein R is alkyl, alkanoyl, alkyloxy. alkylamino or alkylamido in which the alkyl group has from 1 to 4 carbon atoms; benzoyl, phenyloxy or phenylamino in which the phenyl group may be substituted or unsubstituted; or cyano or iodo; together with a pharmacologically suitable topical vehicle or excipient.
Patent GB-704600-A (GB)
Title: Apparatus and method for melting and fiberizing refractory materials
IPC: C03B37/092
Filed: 1952-11-07
Abstract: 704,600. Mineral wool. CARBORUNDUM CO. Nov. 7,1952 [Nov. 8, 1951], No. 28166/52. Class 56 A plant for fiberizing high melting-point refractories comprises an open top pot furnace 6 having electrodes 8, 9, 10 depending therein, and a forehearth 19 having auxiliary electrodes one of which is shown at 25. The furnace is tiltable on trunnions 7 and the forehearth is provided with a pouring lip 35. A fiberizing nozzle 38 is mounted on arms 37 adjacent the pouring lip. The furnace and forehearth are water-jacketed.
Patent GB-783786-A (GB)
Title: Magnetron anode-cathode structure
IPC: H01J25/587
Filed: 1954-09-30
Abstract: 783,786. Magnetrons. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). Sept. 30, 1954, No. 28173/54. Class 39(1). In a multi-cavity magnetron the multicavity anode 2 can be accurately centred with respect to the cathode 10 by deforming a thin walled tube 3 enclosing the anode. The adjustment is made by means of three screws 9 equally spaced circumferentially. The screws 9 are mounted in struts 8 extending between rings 4 and 5. Rings 4, 5 and rings 6, 7 provide rigid supports for the ends of the tube 3. The cathode assembly is rigidly positioned within the bores of pole pieces 11, 12 by springs 16, 17 forcing it against a shoulder 15 in the upper pole piece. The springs bear against metal members 18, 19 insulated from each other and from the remainder of the envelope to serve as the cathode terminals. The output waveguide assembly 22 is braced by struts 24 secured to the rings 4, 5.
Patent GB-841224-A (GB)
Title: A method of, and means for, producing yarns from wool, cotton waste and rayon staplefibre
Inventor: KAY WILLIAM
IPC: D01G15/68
Filed: 1957-09-06
Abstract: 841,224. Spinning yarns; carding engines. ASSOCIATED WEAVERS Ltd. Sept. 8, 1958 [Sept. 6, 1957], No. 28231/57. Classes 120(1), 120(2) and 120(3).  Condenser-spun yarns are produced by conveying slivers formed from a divided carded web directly to a centrifugal spinning machine in such manner that each sliver forms a reserve loop between the carding and spinning machines to compensate for the different times taken by the two machines in accelerating to full speeds. Slivers from the rubbing leathers 5 pass over a set of rollers 26 driven from the carding machine and on to a set of rollers 27 driven by the spinning machine, which may be of the kind described in Specifications 529,308, 529,309, 605,165, 605,166, 605,167, 605,365 and 641,312. Specification 710,521 also is referred to.
Patent GB-264620-A (GB)
Title: Improvements in or relating to machines for making helically constructed metallic tubing
IPC: B21C37/12
Filed: 1925-11-10
Abstract: 264,620. Clough, J. P. Nov. 10, 1925. Coiling; dies.-In forming metallic tubing by passing overlapping strips 11, through a helical coiling chamber, comprising an end plate 1 formed with a helical path or scroll 2, a number of adjustable brackets 5 secure the bending rollers 6 to the scroll around the periphery of the tube 3 being formed. The diameter of the tube required is determined by adjusting the rollers 6 in or out by means of slots 7 in the brackets 5. Fig. 4 shows a roller 6 mounted on a ball bearing spindle 8 and secured by an adjusting pin 10 in the bracket 5. The rollers are set at right angles to the helix and they may be so shaped that they form a perfectly straight tube.
Patent GB-1426831-A (GB)
Title: Testing repeaters
IPC: H04B17/40
Filed: 1973-06-14
Abstract: 1426831 Testing repeaters STANDARD TELEPHONES & CABLES Ltd 14 June 1973 28288/73 Heading H4R In the testing of repeaters Fig. 1 by transmission of an interrogating frequency picked off by a characteristic filter CF, frequency changed M, Mo and returned to the test terminal, errors in the frequency change are determined by adjusting TMO, Fig. 3, the nominal discrete interrogating frequency FS until a phase detector PD indicates that the received, frequencychanged signal at R x  is at the same frequency as a reference frequency PO. Low band (200-293 kHz) or high band (7740 -7833 kHz) frequencies from line terminals A, B are passed by crystal filter CF before or after modulation respectively in a modulator M fed from a nominal 7540 kHz crystal oscillator Mo subject to fluctuations of 250 Hz according to age, temperature &c. The modulation product in the return frequency band may be ambiguous with adjacent repeaters whose filters CF differ by 150 Hz. The test frequency FS selected at source G is therefore adjusted in modulator TM by 250 Hz until the return and reference frequencies are the same. Once established, subsequent tests are performed by assigning one of a number of frequency slots of sufficient width to encompass the likely repeater return frequency range and appropriate e.g. to the time of year. Such testing may be programmed on a tape carrying the relevant repeater data which automatically starts a ramp generator (8, Fig. 6, not shown) feeding a circuit (10) also responsive to the frequency slot data to control the frequency generator G by varacter diodes. The ramp generator may also control the speed of a penrecorder plotting the repeater loop gain and connected to the intermediate filter ILF.
Patent GB-965889-A (GB)
Title: Method of making readily disintegrating projectile cores for practice ammunition
IPC: C22C1/00
Filed: 1963-07-17
Abstract: 965,889. Practice projectiles. MANNESMANN A.G. July 17, 1963 [July 26, 1962], No. 28326/63. Heading F3A. [Also in Division B5] A practice projectile has a core of compressed metal powder, the core after formation being treated to reduce the cohesion between the powder particles without affecting the shape of the core. The core may be formed under pressure in a mould and the cohesion reduced by mechanical action, e.g. hammering or static pressure, while the core is in the mould or after the core has been inserted in a sleeve. Ultrasonic vibration or alternating magnetic fields may be used to reduce the cohesion. The green strength of the core may also be reduced by immersion in an acid, especially when the core contains chemical compounds, e.g. sodium carbonate, which react with the acid, e.g. hydrochloric. To form the core iron powder may be mixed with zinc stearate. Magnesium oxide may be included in the mixture. The projectile shown has a core formed in three parts 2, 3, 4, which are inserted in a plastics sleeve 1. A tablet 5 of calcium chloride is inserted to prevent corrosion during storage.
Patent GB-936382-A (GB)
Title: Improvements in or relating to fluid operated actuators
Inventor: BANKROTH HEINZ-JOACHIM
IPC: F16J3/00
Filed: 1962-07-24
Abstract: 936,382. Cylinders, pistons and piston packings. ZENTRALINSTITUT FUR AUTOMATISIERUNG. July 24, 1962, No. 28345/62. Class 122 (1). In a fluid-operated actuator an elastic, e.g. rubber, sealing ring 10 interposed between the cylinder liner 7 and the piston skirt 6 is externally fluted in a manner forming a toothing around the periphery of its cross-section. The skirt 6 is mounted between plates 4, 5 secured on the piston-rod 8. The opposing surfaces of the skirt and of the liner are provided within parallel grooves having in cross-section the appearance of rack teeth which mesh with the teeth on the packing so that the latter rolls as the piston is actuated. The skirt and liner may be cylindrical or either or both of them may have the shape of a truncated cone so that the sealing ring is progressively compressed or decompressed in accordance with the operating fluid pressure as the piston moves axially. The hollow interior of the ring may contain a filler material and may be provided with a helicallywound reinforcing metal tape 11.
Patent GB-908925-A (GB)
Title: Nuclear power plants
IPC: G21D5/06
Filed: 1961-08-04
Abstract: 908,925. Nuclear power plant. SULZER FRERES S.A. Aug. 4, 1961 [Sept. 21, 1960], No. 28464/61. Class 39 (4). The core of a nuclear reactor is cooled by a vaporous or gaseous medium, e.g. steam, which is divided into two streams, one stream being supplied to a prime mover, expanded therein, condensed, pressurized by a pump and then passed through a heat exchanger as a secondary medium, while the other stream is passed as the primary medium through the heat exchanger and is then circulated by a blower before joining the first stream downstream of the blower. The object of the invention is to reduce the blower power. In Fig. 2, the reactor 1 supplies steam to the distributing valve 2 which divides the coolant into a first stream which operates the turbine 4 before being condensed in the condenser 5, pressurized by a pump 6 and partially vaporized in the heat exchanger 7. The second stream passes through the heat exchanger 7 and is circulated by the blowers 9a and 9b and joins the first stream in the pipe 12. As the central part of the core is hotter than the periphery then the use of the two blowers ensures that the coolant flows faster through this central part than through the periphery which is fed only from the blower 9a via the pipe 11. Fig. 1 (not shown) differs from Fig. 2 in that it has only one blower and no pipe 11. In Fig. 3, the steam is divided from the junctions 13 so that steam from the periphery of the core, which is hotter than the steam from the central part, drives the turbine. Fig. 4 (not shown) combines the features of Fig. 2 and 3. In Fig. 6, the turbine feed steam is taken from the junction 2. Fig. 5 (not shown) differs from Fig. 6 in that the steam is divided just before entering the reactor. Similarly in Fig. 7 (not shown), the steam is divided upstream of the heat exchanger. In Fig. 8, a two-stage turbine is used with intermediate reheating of the turbine steam in the reactor. The cooling of the turbine steam may be varied by injecting a small proportion of the feedwater at a point 16. In Fig. 9, the whole quantity of steam passes through the core in two serially connected passages. The steam can be cooled in an extra heat exchanger 7a after the first passage; alternatively, as in Fig. 10 (not shown), the steam can pass through the first time without cooling.
Patent GB-1532294-A (GB)
Title: Adhesive composition
IPC: C09J121/00
Filed: 1976-07-09
Abstract: 1532294 Adhesive compositions UZINWERK GEORG UTZ KG and BISCHOF & KLEIN GmbH & CO KG 9 July 1976 [11 July 1975] 28648/76 Heading C3M Pressure-sensitive adhesive compositions which are solid at room temperature contain (by weight) 40-79% of a rubber, 4-30% carbonaceous filler, 4-30% silica filler, 2-8% zinc oxide, 2-10% oil, 4-20% of a phenolaldehyde condensate or resin, 4-20% of a thermoplastic aliphatic hydrocarbon resin, and 0À3-4% of a lubricant. The composition may be extruded on to a flexible support to provide a pressure-sensitive adhesive tape useful for sealing cracks, gluing plywood, sealing tanks, securing bandages, insulating wiring and protecting metal pipes against corrosion. The adhesive may be admixed with a solvent to provide a primer composition.
Patent GB-1521125-A (GB)
Title: Preparation of esters of cellulose
IPC: C08F8/14
Filed: 1975-07-08
Abstract: 1521125 Cellulose nitrites, sulphates and nitrates R G SCHWEIGER 8 July 1975 [10 July 1974] 28676/75 Heading C3A Nitrite esters of cellulose which may be converted to sulphates or nitrates are prepared by reacting water-containing, cellulose having not more than 12% water content with dinitrogen tetroxide or nitrosyl chloride at less than 50 C. with stirring in the presence of at least three parts by weight of a swelling or solubilizing solvent for the nitrite ester per part by weight of cellulose in the presence of proton acceptor. The cellulose preferably contains 4-12% water by treatment with a highly polar aprotic solvent. The solvent used is N,N-dimethylformamide and the highly polar aprotic solvent may be N,N-dimethylformamide, N,N-dimethylacetamide or pyridine. The sulphate ester may be prepared by reacting the nitrile ester with SO3 or a complex thereof and neutralizing with a base to give the alkali salt form.
Patent GB-285544-A (GB)
Title: Improvements in the purification of furnace gases
IPC: B01D47/02
Filed: 1926-11-15
Abstract: 285,544. Eley, C. V. A. Nov. 15, 1926. Smoke and fumes, washing.-Apparatus for treating boiler furnace gases comprises a filter chamber 13 connected by a pipe 16 to a liquid tank 17. The gases pass upwards through the filter and enter the tank below the liquid level and escape through an outlet pipe near the upper part of the tank; the gases are drawn through both filter and tank by suction. The filter 13 may contain trays of lime, soda, &c. for absorbing carbon dioxide &c. and a.lso trays of material for collecting heavier flue dust. A spray 15 of waber or water charged with lime, soda &c. may be employed. The liquid tank 17 has a baffle 18 beneath the liquid level, and pipes 19 opening into an outer water-heating chamber 20 having a steam outlet 22. Discharge of gases through a pump or fan 23 is controlled by a valve 25. A helical conveyer 28 is provided in a sump 27 for discharging sediment through an out-take 30 into a chamber 32 from which water is drawn off through a pipe 34. Valves 31, 35 controlling the inlet and outlet of the ash collection chamber may be interconnected and operated at intervals as by the driving means of the helical conveyer.
Patent GB-665961-A (GB)
Title: An improvement in or relating to metal bedsteads
Inventor: TAYLOR GEORGE GREAVES
IPC: F16B12/58
Filed: 1949-11-09
Abstract: 665,961. Bedstead joints. SIDDALL & HILTON, Ltd. Nov. 9, 1950. [Nov. 9, 1949] No. 28682/49. Class 52 (ii). A corner joint for a metal bedstead comprises two parts b, c having recesses b<SP>1</SP>, c<SP>1</SP> adapted to embrace the corner post a of the end frame, a screw d securing the parts b, c together and passing through apertures a' in the corner post a. The part b is provided with the usual vertical dovetail socket b<SP>4</SP> into which is dropped the spigot e<SP>1</SP> of the bed side members e. The screw d engages a threaded part c<SP>3</SP> in the part c and the head of the screw d is situated in a recess b<SP>3</SP> which opens into the dovetail socket b<SP>4</SP> so that when the side member spigot el is in position the screw d is prevented from slackening back. The part e<SP>1</SP> may be separate from, and may fit into the side member c.
Patent GB-327716-A (GB)
Title: Improvements in and relating to apparatus for electrical prospecting
IPC: G01V3/02
Filed: 1928-10-06
Abstract: 327,716. Nichols, C. R., and Williston, S. H. Oct. 6, 1928. Prospecting for minerals.-Apparatus for locat ing bodies of oil-bearing sand &c. by passing a current into the ground and tracing the equipo tential lines is so arranged that the potential of an exploring electrode in the neighbourhood of an energizing electrode when current is flowing is compared with that of the ground when unaffected by current flow. In the arrangement shown in Fig. 1, current from a direct-current souce D is supplied through a motor-driven reversing switch R to earth electrodes A. B. A galvanometer G is connected between the exploring electrode E and a reference electrode H which is separated from the energization points A, B at least five times the distance between these points, so that it is not appreciably affected by current flow between the points A, B. Any difference of potential existing between the points H and the electrode E when at the mid-potential point may be compensated for by applying to the galvanometer G an equal and opposite potential difference from a potentionmeter F. The apparatus may be mounted on a motor truck or other vehicle. The energization points A, B may be from 3000-14000 feet or more apart. In an alternative arrangement, a quadrant electrometer is employed instead of a galvanometer G. The four quadrants are charged by connecting them to the exploring electrode E when no current is flowing disconnecting an opposing pair of quadrants fron the earth, and passing a current through the energization electrodes A, B. A deflection is obtained if the electrode E is at a point other than the mid-potential point. Fig. 3 shows an arrangement of four energizing electrodes A, AA, B, BB, by means of which two interconnecting mid-potential lines may be produced. Resistances R enable the currents to the four electrodes to be independently adjusted. Equal resistances R<1> connected to each terminal of the dynamo D are connected by galvanometers GA which indicate by zero reading, equality of the currents flowing to both probes connected to the same electrode. Alternative energization systems are shown in Figs. 6 and 7.
Patent GB-1350711-A (GB)
Title: Process of purifying a gelatinous precipitate
IPC: C01B3/16
Filed: 1972-06-20
Abstract: 1350711 Purifying wet precipitates W R GRACE & CO 20 June 1972 [28 June 1971] 28870/72 Heading C1A Wet gelatinous precipitates are treated with (a) an organic liquid, optionally containing water and/or an inorganic compound, having a solubility for water of at least 5% by wt. and having a solubility in water of less than 2% by wt., e.g. C 5 -C 7  an aliphatic alcohol, and then washed with (b) water or an aq. soln. of an alkaline compound to remove electrolyte impurities therefrom, the washed ppt. then optionally being dried and calcined. The alcohol may be n-hexanol, 1-pentanol, 2-heptanol, 4- methyl - 1 - pentanol, 2 - methyl - 1 - hexanol and/or 2 - methyl - 2 - pentanol. The precipitate may be a mixture of a hydrous oxide of an actinide metal, e.g. U, with an oxide of Zr, Ti, Nb, Y or W, optionally containing carbon. A mixed carbide may be produced by precipitating the oxide from a mixed salt soln., e.g. UO 2 Cl 2  and ZrOCl 2  with NH 4 OH, in the presence of finely divided carbon and then calcining the washed and dried ppt. at 600-2100‹ C. Step (a) may be carried out in counter-flow by feeding the ppt. and the organic liquid into the top and bottom of a column respectively. The liquid at the bottom of the column may be at a temp. of 50-130‹ C. and the liquid at the bottom at a temp. of 40-100‹ C., and the pH of the liquid in the column maintained in the range 7-10.
Patent GB-997895-A (GB)
Title: Heat resistant structure
IPC: E04B1/94
Filed: 1963-07-22
Abstract: 997,895. Laminates. W. F. LIBBY. July 22, 1963, No. 28873/63. Drawings to Specification. Heading B5N. [Also in Division F3] A heat resistant structure comprises a substrate having an outwardly directed polished light reflecting surface and a layer of optically transparent material, which is at least one inch thick on said surface. The optically transparent material may be glass, quartz or a plastics material such as polyethylene reinforced with glass fibres. The substrate is preferably polished metal, e.g. stainless steel, and may form part of the article which is being protected or may be in the form of a metal skin which is attached to the article which may be formed of wood, concrete or steel. The structure may be used for the forward end of a projectile or for protecting articles against explosive blasts or rocket firings.