baber/WOPTO huggingface dataset:
Patent FI-990743-A (FI)
Inventor: TURUNEN MATTI
IPC: H04L29/06
Filed: 1999-04-01
Abstract: A data packet is subject to corruption when sent over a radio link. In case of real-time data such as video conferencing, it is preferable not to loose any data packets, because lost packets cannot anymore be used as the time for their representation has already gone by the time they could be received if sent again. To mitigate the problems caused by the limited data bandwidth it is possible to compress the header data of a packet, preferably using inter coding to maximise compression gain. This can lead to considerable data saving especially in the case of a serial link, but is a vulnerable method as a single error in data transfer can corrupt the compressed header, the payload assosiated with it and also all the following data packets until the inter coding is initialised again by sending one packet with an uncompressed header. The present invention concerns the use of forward error correction encoding in conjunction with header compression to protect the compressed header and optimise the radio link usage to obtain sufficient quality of received data.
Patent FR-1605243-A (FR)
Title: Melt spinning polypivalolactone fibres - with improved elastic recovery
IPC: C08G63/08
Filed: 1967-05-02
Granted: 1973-09-07
Abstract: Polypivalolactone fibres having an improved elastic recovery are produced from non-drawn polypivalolactone fibre having (1) an intrinsic viscosity of at least 0.7; (2) a degree of orientation of at least 0.85; (3) an elongation of at least 200%; and (4) a high degree of elastic retention, by drawing the non-drawn fibre at a drawing temp. (t) defined by: 220 deg.C >= T >=10 deg.C.
Patent FR-1605512-A (FR)
Title: Information signal transmission system - uses elliptically polarised laser light with variations in ellipse axes ratios as information signal independent of light intensity
IPC: H04B10/532
Filed: 1968-12-31
Granted: 1978-02-24
Abstract: The information transmission system comprises a source of a beam (13) of monochromatic coherent light which is linearly polrised. The beam (13) pores through a quarter wavelength strip (9) oriented at 45 deg. to the direction of polorised light to circularly polorise the light beam. The beam is then passed through a birefractive cell (10) such as a KERR cell which elliptically polerises the light. The signal to be transmitted (5) is used to control the power supply (15) of the birefractive cell (10) to vary the ratio of the ellipse axes in the conformity with the signal (5). The beam is then transmitted by a projector comprising concave and converse mirrors (11, 12). In the receiver, the signal is recovered by detecting the ratio of the ellipse axes. The cell (10) may be one in which the direction and orientation of the field are independently variable to allow transmission of two independent signals such as t.v. sound and vision signals.
Patent GB-227839-A (GB)
Title: Improved manufacture of chemically pure sulphuric acid
IPC: C01B17/90
Filed: 1925-01-14
Abstract: 227,839. Soc. Anon. de Produits Chimiques de Droogenbosch. Jan. 19, 1924, [Convention date]. Sulphuric acid in a pure state and having any desired concentration is obtained by absorption of concentrated sulphur trioxide, produced bv heating oleum, in water or dilute acid. In an example oleum containing 20 per cent of free sulphur trioxide. is heated in a cast iron retort a to produce a regular current of sulphur trioxide, which is conveyed by pipes, of acid resisting glass to absorbers b of the same material. Condensation and absorption are' facilitated by the exclusion of air. Vessels c are provided to retain any uncondensed acid vapours. Traces of sulphur dioxide in the acid run off from the absorbers are removed by agitating with dry air or other known means. Sulphuric acid may also be produced continuously in a similar manner in a single absorber, distilled water or dilute acid being introduced at one side and withdrawn at the other at the desired concentration.
Patent GB-431581-A (GB)
Title: Improvements relating to automatic weighing machines
IPC: G01G13/00
Filed: 1934-01-11
Abstract: 431,581. Weighing-apparatus. JORGENSEN, M. VOGEL-, 24, Bulowsvej, Frederiksberg, near Copenhagen. Jan. 11, 1934, No. 1143. [Class 143] Automatic-feed weighers.-The weighing-receptacle of an automatic-feed weigher is tilted to discharge its contents by an electric motor carried by a pendulum support depending from an axis coaxial with that about which the receptacle is tilted, both the receptacle and the motor being carried by the weighing-mechanism and moving when the receptacle has received a predetermined weight of material to bring the motor into action and tilt the receptacle to discharge its contents. Material flows from a hopper 19 into a rotary receptacle 1 mounted on a weigh-beam 4. When the beam tilts, a latch 28 is disabled to permit a counterweighted feedgate 20 to close, and a weighted pawl 16 fast on a shaft 13 is freed to rock a mercury switch 12 carried by the shaft. A relay in circuit with the switch is thus energized to start a motor 9 and release a brake 10 operating on the motor shaft. The receptacle receives one revolution during which the material is discharged through the mouth and at the end of which a projection 22 on the receptacle opens the feed-gate by abutment with an arm 23. The motor is carried by a pendulum support 7 depending from the receptacle shaft 2. The feed-gate may alternatively be operated by a reversible motor controlled by two additional mercury switches.
Patent GB-441039-A (GB)
Title: Improvements in or relating to tobacco feeding apparatus
IPC: A24C5/39
Filed: 1935-01-12
Abstract: 441,039. Tobacco-feeding machines. MOLINS, H. B., 2, Evelyn Street, Deptford, and ISAACS, M. H., 7, Thavies Inn, Holborn Circus, both in London, [Representatives of MOLINS, W. E.] Jan. 12, 1935, Nos. 1156 and 3058. [Class 130] To maintain a roll of tobacco of substantially constant diameter between combing and brushing rollers 2, 3, the quantity of tobacco fed by the combing roller is increased or decreased when the quantity of tobacco in the roll is below or above the normal amount. A tamper 5 is periodically raised by parallel links 8, 9 and mechanism 11, 12, 14, 15 and lowered by gravity on to the roll which is trimmed by rakes 4 on a bar 16 oscillated by links 17, 18. The position at which the roll arrests the tamper 5 regulates the quantity of tobacco fed to the roll either by controlling the distance of the rake 4 from the combing roller 2 or by altering the arc through which the rake is swung. In the construction shown in Fig. 1, the bar 16 is carried by a pivoted lever 19 connected to the tamper 5 and is moved nearer to or away from the roller 2 when the tamper engages a larger or smaller roll. In a modified construction, the rake is operated through a friction clutch and the tamper 5 sets a pivoted pawl in the path of a ratchet carried by the rake 4 to vary the point at which the clutch slips and the arc through which the rake oscillates. In the construction shown in Fig. 4, the arc through which the rake oscillates is varied by a lever 11 carrying a bell-crank 31, one arm of which is connected by a link 33 to the tamper 5 while the other arm is connected to the link 17. Specification 385,210 is referred to.
Patent GB-367119-A (GB)
Title: Improvements in loud-speakers
IPC: H04R1/28
Filed: 1931-01-13
Abstract: 367,119. Loud-speakers. BETHENOD, J., 79, Boulevard Haussmann, Paris. Jan. 13, 1931, No. 1203. Convention date, Feb. 5, 1930. [Class 40 (iv).] A loud-speaker has a diaphragm 2, driven e.g. by a moving coil 1, forming one wall of a space closed by a second diaphragm 10 which is flexibly mounted and has such a mass that it vibrates out of phase with the driven diaphragm 1. There may be more than one driven diaphragm 2, each associated with a separate subsidiary diaphragm 10. The body of the loud-speaker may be covered with a non-resonant material 11 and the enclosed space may be filled with an elastic fluid. The diaphragms may be truncated cones or formed of layers of paper glued together, the thickness of the diaphragm increasing from the periphery to the centre. The mass of the diaphragm 10 may be increased by securing heavy washers at its centre.
Patent GB-949653-A (GB)
Title: Boron doping alloys
IPC: H01L21/00
Filed: 1962-01-12
Abstract: In the preparation of a boron doping alloy for producing P-type conductivity in semi-conductor materials, a master alloy is first produced consisting of boron and one or more sub-carrier metals selected from the group Pt, Cu, Fe, Co, Ni, Rh, Ru, Pd, Os, and Ir, the master alloy including a eutectic the melting point of which is close to that of a carrier metal or alloy selected from Au, Ag, Pb, and Sn. The master alloy, in an amount not exceeding 1%, is added to the molten carrier metal or alloy to produce a concentration of 10-1000 parts per million of B in the latter, and the resultant alloy maintained in the molten state until uniform distribution of boron is attained.  The melt may then be quenched to minimise segregation on solidification.  A master alloy of 40% B/60% Pt, and carrier alloys of 90% Au/10% Pb, 95% Ag/4% Pb/1% Sn, and 80% Au/20% Ag are referred to.
Patent GB-827996-A (GB)
Title: Expanded thermoplastic materials
Inventor: WEBBER HAROLD
IPC: C08J9/10
Filed: 1957-01-12
Abstract: In the production of expanded thermoplastic materials, such as P.V.C., nitrourea is mixed with a solution or dispersion of the thermoplastic in a liquid, and the mixture, which may contain one or more accelerators, fillers, plasticizing agents or blowing agents and also starters or precursors for the nitrourea, e.g., borax or thiosemicarbazide, is heated.
Patent GB-843598-A (GB)
Title: Improvements in or relating to phase-sensitive control circuits employing transistors
IPC: G05B1/02
Filed: 1956-04-26
Abstract: 843,598. Phase-detectors. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 26, 1956 [April 29, 1955], No. 1267/60. Divided out of 12844/56. Class 40(5). [Also in Group XXXV] A phase detector or phase sensitive rectifier for controlling a servomotor system or relay has one input 1 applied in opposite phases between the emitters and bases of a pair of transistors with connected emitters and the other input 2 in like phase between the collectors and the emitters, and a rectifier 5 is connected in series between each collector and second input 2 to prevent the collector-base circuit input of each transistor producing forward conduction in the collectorbase path. A D.C. voltage in magnitude and polarity corresponding to the relative phase is developed across the collector circuit resistors or relay windings 4, 4<SP>1</SP>. Positive feedback may be applied from source 2 through a potential divider 13, 14 to the base emitter circuit to minimize distortion, or resistors may be included in the emitter circuits. The resistor 14 alternatively may be a rectifier. Reference has been directed by the Comptroller to Specification 774,038.
Patent GB-877061-A (GB)
Title: Improvements in or relating to the manufacture of sponge rubber products
Inventor: ROBERTS FRANK SOMERVILLE
Filed: 1959-01-13
Abstract: 877,061. Laminates. DURIE & MILLER Ltd. Jan. 6, 1960 [Jan. 13, 1959], No. 1279/59. Class 140. A product comprising a vulcanised layer of foamed and gelled rubber latex having one surface securely attached to a fabric base is made by depositing an unformed mass of foamed rubber latex containing vulcanizing ingredients and a gelling agent on to a conveyer, levelling the foam to a layer of controlled thickness, passing the conveyer and spread layer through a heating device arranged to gel the foam inwards from the surface in contact with the conveyer whilst preventing setting or drying out of the exposed surface, terminating the application of heat whilst the upper surface is still ungelled and undried, contacting this surface with a fabric material under sufficient pressure to adhere it to the surface, and completing the drying and vulcanization of the layer. As shown, a mass 10 of a foamed latex of natural or synthetic rubber is deposited on an upper conveyer 1. It is carried beneath the adjustable doctor blade 5, which levels it off, and over the heater 3, which may comprise infra-red radiant panels. The foam gels progressing upwards, but drying out of the upper surface is prevented by the shield 6. At the end of the conveyer 1, the foam layer falls on to a second conveyer 2, travelling in the opposite direction. This conveyer carries a fabric 12 on to which the foam layer is pressed by its own weight. A second heater 3<SP>1</SP> completes the gelation of the foam. The product is then passed through a drying chamber 9 to complete its drying and vulcanization. The belt of conveyer 1 may be of polished metal, or of a flexible synthetic plastic material to which the rubber latex mixture will not adhere, and may be plane, patterned or embossed to form a complementary pattern on the surface of the foam.
Patent GB-726430-A (GB)
Title: An improved wheeled toy
IPC: A63H17/26
Filed: 1953-01-16
Abstract: 726,430. Wheeled toys. HORE, T. W. Nov. 12, 1953 [Jan. 16, 1953], No. 1318/53. Class 132(3). A toy vehicle for towing by children, comprises at least two articulated sections one of which is slidable within the other and is connected to rotary means on a rotatable axle whereby it is reciprocated and opposite angular movements are given to both sections. The forward section 5 comprises a frame 7 integral with a part representing the front of the locomotive, and having brackets 11 with slots into which an axle 12 carrying wheels 13 is pressed. The rear section 6 comprises a frame 14 integral with a part representing the rear of a locomotive including a box portion 18 and wheels 25 mounted on an axle 22 which engages in slots 36 in box portion 18. The rear axle 22 has a central crank 27 which is connected to a beam 28, extending from the frame 7 so as to hold the sections 5 and 6 together and cause relative motion between the sections as the axle turns. A figure 20 slides in an aperture 19 in box portion 18 and its lower end engages crank pin 32 so that the figure moves up and down as the rear axle 22 rotates.
Patent GB-213999-A (GB)
Title: Improvements in furnaces
IPC: C03B5/06
Filed: 1923-01-15
Abstract: 213,999. Travers & Clark, Ltd., Tracers, M. W., and Clark, F. W. Jan. 15, 1923. Air, supplying. - Furnaces such as glass pot furnaces and the like are provided with an air duct A into which air can be forced. The air passes through ports B into an annular chamber C surrounding the refractory shell D of the producer E, and thence through passages G beneath the siege blocks F. Specification 177,085 is referred to.
Patent GB-469025-A (GB)
Title: Process for the saponification of organic esters of cellulose and of filaments, films and the like made therefrom
IPC: D06M11/38
Filed: 1936-01-16
Abstract: Filaments, fabrics, films, and the like of organic esters of cellulose are subjected to saponification in selected areas only, washed, and treated with a saponifying agent which under the conditions of the exposure intensifies the saponification of the already saponified areas without substantially saponifying the unsaponified areas.  The preliminary saponification may comprise local treatment with aqueous caustic soda, caustic potash, barium hydroxide or the like, preferably under such conditions that no saponification occurs during application and then effecting the saponification by drying the materials under heat.  Again, the treatment may be a bath treatment applied to materials which have been locally reserved by means of a resist.  The extent of the preliminary saponification may be sufficient to remove from less than 10 per cent up to 20 per cent or more of the original acidyl content of the materials.  The intensification of the saponification may be effected with weakly alkaline or weakly acid aqueous baths, e.g. of sodium carbonate, trisodium phosphate, sodium borate, sodium phenate, ammonia, or nitrogenous organic bases, a number of which are specified.  Examples are given of the preliminary saponification of cellulose acetate yarn in which (1) the yarn is printed at intervals with a solution of caustic soda and (2) the yarn is printed with a resist and then drawn through a bath of caustic soda and finally a scouring bath.  The sensitized yarn, according to further examples, is treated with (3) a dilute solution containing soap and caustic soda, (4) a solution containing soap, sodium carbonate, sodium bicarbonate and sodium acetate, and (5) a solution containing ammonia.  In other examples, a cloth containing cellulose acetate yarn, viscose yarn and yarn treated as in (2) is immersed in (6) an aqueous solution of methylamine and (7) a solution containing soap and ethylene diamine.  In a further example (8) cellulose acetate yarn treated as in (1) is doubled with cellulose acetate yarn and fabric woven therefrom is treated in a bath containing soap and cyclohexylamine.  According to the Provisional Specification, filaments, fabrics, films and the like of organic esters of cellulose are saponified by a process in which the saponification is started by means of a mineral base and completed by means of a substance of considerably lower alkalinity than said base. Specifications 323,790, 332,263, 336,217, [all in Class 2 (ii)], 370,430, 371,461, 389,823, 423,168, 435,806, 435,987, 438,584, 438,586, 438,587, 438,655, 438,656, 453,302, and 463,955 are referred to.
Patent GB-157798-A (GB)
Title: Improved process for joining metals
IPC: B23K23/00
Filed: 1921-01-10
Abstract: 157,798. Goldschmidt, H. Dec. 22, 1919, [Convention date]. Thermo-aluminic processes.-In a thermo-aluminic process for welding metals, particularly tramway rails, the end faces are brought to approximately 1¢ to 4 mms. apart in a mould, preliminarily heated to a high temperature and thermo-aluminic iron, then run in between the faces. A thermo-aluminic mixture is used without or with only a small quantity of additional iron. The distance between the ends of the work is 1/5-1/10 the usual distance, and the ribs and thickened portions on the sides of the intermediate casting are reduced to a minimum, thus reducing the amount of mixture required. The rails may be welded in embedded position or may be pressed together by a clamp. The Specification as open to inspection under Sect. 91 (3) (a) states that the preliminary heating is effected by highly heated gases. This subject-matter does not appear in the Specification as accepted.
Patent GB-237167-A (GB)
Title: Improvements in wiring terminal connections
IPC: H01R31/02
Filed: 1925-01-17
Abstract: 237,167. Dowsett, F. C. Jan. 17, 1925. Plug-boards.-A terminal connection for a number of telephones in a wireless receiving apparatus comprises a casing 1, closed at one end 2, and provided with sliding contact blocks 3 under pressure of a spring 4 held' in place v a cap 5. Slots 8 are cut in the casing 1 to per mit the insertion of the pins 9 into recesses cut in the sides of the contact blocks 3. The casings 1 are mounted on a base plate 6. In a modification the casing 1 is a round disc of insulating material with a flat cover plate and two partitions. The contact blocks and springs are similarly arranged to that of the construction having a straight casing. Reference has been directed by the Comptroller to Specification 232,197.
Patent GB-205413-A (GB)
Title: Improvements relating to control valves for gases or liquids
IPC: F16K37/00
Filed: 1923-01-17
Abstract: 205,413. Hall, I., and Howlett, J. H. Jan. 17, 1923. Indicators, application of; seats; thermallyactuated valves.-An indicating-device for valve adjustments comprises telescopically arranged cylindrical portions 23, 24, the portion 23 moving helically with the adjusting member 22 and the portion 24 being stationary, and one part having a circumferential scale 13 and the other part having a longitudinal scale 14. The device is shown as applied for adjusting the valve seat 20, the valve member being operated by a thermostat 19 as described in Specification 26583/13; the device is also described and shown in connection with the actuating handle of screw-down lift valve.
Patent GB-551777-A (GB)
Title: Improvements in and relating to electric controllers
IPC: H01H3/10
Filed: 1942-02-05
Abstract: 551,777. Controllers. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 5, 1942, No. 1537. Convention date, Feb. 7, 1941. [Class 38 (iii)] A handle 25, pivotally mounted in a door 11, is connected to the rheostat arm 21 inside the controller casing, by a spring pressed stud 33 on the arm 21 engaging a groove in an insulating block 28 carried by an arm 27 rotating with the (handle 25. The door can be closed with the handle in any position and then by rotating the handle the stud 33 snaps into the groove and a through drive is instituted.
Patent GB-574296-A (GB)
Title: Improvements in and relating to chilling nozzles for electric furnaces in connectionwith the carbothermic reduction of magnesium oxide
IPC: F27D11/00
Filed: 1944-01-27
Abstract: 574,296. Distilling magnesium. SPOONER, E. C. R., and MAGNESIUM METAL CORPORATION, Ltd . (Permanente Metals Corporation, in part). Jan. 27; 1944, No. 1556. [Class 82 (i)] Electric furnaces, for the production of magnesium by the carbo-thermic method, comprise a combination of furnace wall 2 defining a sealed furnace chamber, electrodes extending into the chamber, means for feeding a reactive charge into the chamber, an outwardly flaring chilling nozzle 10 registering with an opening 9 in the chamber, and a removable sleeve 11 of refractory substance, which may be carbon, connecting the said opening and nozzle. The nozzle has openings 17 directed towards the axis thereof, means for supplying a chilling medium to the openings and a cooling jacket 20. The inner end of the nozzle wall fits in an annular recess of the axially extending neck of the refractory ring which protects it from the intense heat of the furnace and of the discharged furnace products. The furnace may be adapted to receive the reactive charge through the base. Specifications 381,115, 467,663 and 486,558, [Group XII], are referred to.
Patent GB-1390565-A (GB)
Title: Composition and method for gastric ulcer prevention and  growth promotion of swine
IPC: A61K31/78
Filed: 1973-01-11
Abstract: 1390565 Polyacrylate compositions NIPPON KAYAKU KK and GLICO CHIKUSAN KK 11 Jan 1973 [14 Jan 1972 20 June 1972] 1574/73 Heading A5B Gastric ulcers in swine are prevented by administration of a polyacrylate salt, e.g. in their feed. Sodium and potassium polyacrylates are specified.
Patent GB-974039-A (GB)
Title: Improvements in cushion supporting members
Inventor: GRIMSHAW NORMAN
IPC: A47C7/22
Filed: 1962-01-16
Abstract: 974,039. Upholstery supports. VITAFOAM Ltd. Jan. 15, 1963 [Jan. 16, 1962], No. 1584/62. Heading A4M. [Also in Division B5] A resilient support for seat cushions &c. in the form of a strap or of a platform 23 has moulded therein at the extremities rodlike members 18 by which it is attached to a framework by means of clips 25 or 29.
Patent GB-227285-A (GB)
Title: Improvements in or connected with hat leathers or sweat bands
IPC: A42C5/02
Filed: 1924-01-21
Abstract: 227,285. Marlor, A. Jan. 21, 1924. Leathers or sweat bands.-A line of spaced holes is punched part of the way round the leather, and the leather is embossed adjacent to the holes. To the back of this portion of the leather a strip of a contrasting colour is secured, which shows through the holes and combines with the embossed pattern to produce an ornamental effect approximating to the usual " hand drawing "-wherein a coloured ribbon is threaded in and out through slits in the leather. Fig. 1 shows one form comprising punched out portions c, embossed portions b, and a coloured backing strip d. Fig. 5 shows a double line of apertures bounded by longitudinal embossed ridges e'. In this form differently coloured strips may be secured behind the two lines of apertures.