baber/WOPTO huggingface dataset:
Patent GB-449322-A (GB)
Title: Improvements in wireless communication systems
IPC: H04B7/155
Filed: 1934-12-19
Abstract: 449,322. Wireless signalling. ROBINSON, J., 76, Mill Way, Mill Hill, London. Dec. 19, 1934, No. 36448. [Class 40 (v)] In a relay station for intensifying the signal strength in the locality, the receiver is controlled automatically to maintain the re-radiated signal constant. The carrier only, or with one or both sidebands may be intensified. The Figure shows a system in which the signals are changed in frequency by a frequency changer 52 and re-converted to the original frequency by another frequency changer 58 using a common oscillator 53. Signals are controlled in strength in the amplifier 54 and fed over lines 57 and through means to compensate for attenuation, frequency and phase distortion. Similar compensation in the oscillator line 59 is effected by the device 61. Reaction between the transmitter and receiver may be used and may be obtained by a band-pass coupling in combination with a series tuned circuit for decreasing the amplitude of the carrier. The reradiated signal may be modulated locally when no modulation is provided by the distant transmitter. The apparatus may be located at any convenient location between the two antennµ. The Provisional Specification describes radiation at the relay station of a carrier suppressed at the transmitter and radiation of the carrier with the other sideband from that received. The use of loops to balance the transmitter out in the receiver and a directional receiver to eliminate interference as described in Specification 428,081 are also described in the Provisional Specification.
Patent GB-1413236-A (GB)
Title: Producing l-lysine by fermentation
IPC: C12P13/08
Filed: 1973-07-31
Abstract: 1413236 L - Lysine KANEGAFUCHI CHEMICAL INDUSTRIES CO Ltd 31 July 1973 [2 Aug 1972 (2)] 36471/73 Heading C2C L-Lysine is made by cultivating aerobically a mutant strain of a microorganism belonging to the genus Pseudomonar or Achromobacter in a culture medium containing a hydro-carbon at the main carbon source, said mutant strain being resistant to at least one amino-acid selected from L-valine, α-amino-n-butyric acid, norvaline, # - hydroxynorvaline, α - amino - # - chloro - nbutyric acid and L-threonine. Preferably the microorganism is a mutant strain of Pseudomonar brevis ATCC 21940 (e.g. ATCC 21941) or a mutant strain of Achromobacter coagulans ATCC 21934 (e.g. ATCC 21935 or 21936). The culture medium includes the convential nitrogen sources and inorganic salts and may also include a melting agent (e.g. polyoxyethylene mono- or tri-oleate).
Patent GB-802649-A (GB)
Title: Improvements in or relating to windscreen wiper actuator mechanisms
IPC: B60S1/16
Filed: 1956-11-29
Abstract: 802,649. Windscreen wipers. GENERAL MOTORS CORPORATION. Nov. 29, 1956 [Dec. 8, 1955], No. 36505/56. Class 138(1). A windscreen wiper actuator mechanism comprises a rotary electrically driven member which oscillates a wiper blade through a variable throw crank, the drive member and the crank having between them a releasable connection which, when released, varies the throw of the crank and arrests its rotation. As shown, a worm 38 on the shaft 37 of an electric motor rotates a worm gear 39 carrying a crank assembly which imparts an oscillation of fixed amplitude, by means of a crank pin 51 and associated linkage, to a shaft 21 driving the wiper blade. The amplitude of the oscillation is increased, when the blade is to be parked, by rotating a link 74 in a clockwise direction to engage an arm 71 and move it into a position to interrupt the rotary movement of a drive pawl 52, thus causing a pin 53 carried on the pawl to be moved out of a notch 46 in a cam track 45. The crank assembly continues to rotate and the surface 54 of the pawl 52 moves radially by the action of an eccentric cap 42, to engage a stationary arm 70 and the throw of the crankpin 51 is increased with the result that the wiper blade moves through an additional angle into the parked position. The electric motor is deenergized by an arm on the shaft 21 which operates a switch only when the wiper blade reaches the parked position.
Patent GB-957893-A (GB)
Title: Synthetic rubber compositions and products made therefrom
IPC: B60C1/00
Filed: 1960-10-25
Abstract: A composition comprises (1) 100 parts of a polymer of butadiene -1.3 containing at least 60% of its units in the cis-1-4 configuration, (2) from 25 to 75 parts of intermediate superabrasion furnace black and (c) from 0.5 to 1.5 parts of sulphur available for vulcanisation. Preferably the polybutadiene contains at least 90% cis-1.4, the furnace black is present as 50 parts and the sulphur as 1 part. There may also be present from 10 to 70 parts of a petroleum-based rubber processing oil in which case an extra part of furnace black is present for each 2 parts of oil.  The polybutadiene may be mixed, in the proportion of 10 to 70%, for its 90 to 30%, of natural sulphur reclaimed rubber, polyisoprene or the elastomeric polymers and copolymers resulting from the emulsion polymerization of butadiene. The composition may contain the usual compounding ingredients and may be vulcanised.  The tread portion of tires may be made from the vulcanite.
Patent GB-974916-A (GB)
Title: Production of isoparaffins
IPC: C07C9/16
Filed: 1962-09-26
Abstract: Isoparaffins are obtained when a C4-C6 isoparaffi is reacted with a tri- or tetra-alkyl substituted ethylene containing 5-20 carbon atoms in a volume ratio of 3-25: 1 in the presence of an acid catalyst; the isoparaffin condenses with itself, losing hydrogen, and the olefin is saturated by hydrogen transfer.  The temperature may be 20-100 DEG F. and sufficient pressure to maintain the liquid phase is used. A space velocity of 0.02-0.3 volumes of olefin per volume of acid per hour is used and the ratio vol. of olefin per hour/vol. of acid \ba(vol. of isoparaffin/2vol. of isoparaffin and olefin) may be 0.02-1.0.  Suitable catalysts are 85-100% sulphuric acid, hydrogen fluoride and aluminium chloride complexed with reactants. Specified olefinic hydrogen acceptors are 2-methyl-butene-2, -pentene-2, -hexene-2 and -heptene-2, 2,3-dimethyl-butene-2, -pentene-2 and -hexene-2, 3-methyl-hexene-3 and heptene-3, 3,4-dimethyl-hexene-3, di-, tri- and tetra-isobutylene, and tri- and tetra-propylene. Isobutane and tetrapropylene yield isooctane and C12 isoparaffins. Unreacted isoparaffins are separated and recycled and may be evaporated from the reaction mixture to provide autorefrigeration.
Patent GB-368811-A (GB)
Title: Improvements in or relating to photo-electric cells and methods of manufacturing the same
IPC: H01J40/06
Filed: 1930-12-05
Abstract: 368,811. Photo-electric cells. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Dec. 5, 1930, No. 36786. Convention date, Jan. 15. [Class 39 (i).] In a cell in which the discharge from a heated cathode is controlled by a photo-electric electrode, the same substance or substances are used as emitting material for both electrodes, and the layer forming the photo-electric electrode is formed by heating the cell so as to evaporate or decompose one or more substances either on the cathode or in a pastille. A cathode coated with barium oxide, barium or strontium is heated so as to form a deposit on the glass envelope. In another cell, a tungsten wire is heated to form a deposit on the wall, oxygen is admitted to oxidize the surface of the wire and layer, and a pastille containing a mixture of caesium chloride and aluminium powder is heated so as to produce caesium vapour which is deposited on the wire to form the cathode, and on the layer. The envelope may be of flattened or oval section and the cathode mounted longitudinally and nearer to the control electrode than to the anode.
Patent GB-1164845-A (GB)
Title: Process for Metal Plating Aromatic Polymer
IPC: H05K1/03
Filed: 1966-08-17
Abstract: 1,164,845. Printed circuits. UNION CARBIDE CORP. 17 Aug., 1966 [20 Aug., 1965; 18 Feb., 1966; 14 July, 1966], No. 36848/66. Heading H1R. [Also in Divisions C7 and G2] A printed circuit is made by subjecting a fabricated substrate of a polyarylene polyether to treatment with a fluid selected from N: N- dimethylformamide, pyridine or its inertly substituted derivatives and alkylene glycols, next conditioning with a strong oxidizing solution, and then plating with metal in succession by first an electroless and then an electrolytic process (see Division C7).
Patent GB-1247347-A (GB)
Title: Pyrimidine derivatives, the preparation thereof and compositions containing the same
IPC: C07D239/48
Filed: 1968-01-19
Abstract: 1,247,347. Antibacterial compositions. WELLCOME FOUNDATION Ltd. 18 April, 1969 [19 Jan., 1968; 2 Aug., 1968], Nos. 3130/ 68 and 37042/68. Addition to 1,128,234. Heading A5B. [Also in Division C2] Pharmaceutical compositions having antibacterial activity comprise 2,4-diamino-6- methyl - 5 - (3',5' - dimethoxy - 4' - hydroxy - benzyl) - pyrimidine or 2,4,6 - triamino - 5 - (3', 5' - di - tert. - butyl - 4' - hydroxy - benzyl)- pyrimidine or a pharmaceutically acceptable salt thereof in association with either a pharmaceutically acceptable carrier or a sulphonamide, e.g. sulphaguanidine. The compositions may be administered in the form of tablets, capsules, catchets, ampoules, suppositories, powders, granules, solutions or suspensions in an aqueous, non-aqueous or emulsified liquid, or as an ointment. Optional additional ingredients include diluents, solutes, buffers, flavouring, binding, dispersing, surfaceactive, thickening, lubricating and coating materials, preservatives, antioxidants, bacteriostats, suppository and ointment bases and any other acceptable excipients.
Patent GB-1092710-A (GB)
Title: Process for the production of anhydrous magnesium chloride
Inventor: GOODENOUGH ROBERT DUANE
IPC: C01F5/34
Filed: 1966-08-18
Abstract: Substantially anhydrous magnesium chloride is prepared from a hydrous ammonium carnallite or a mixture of ammonium chloride and hydrous magnesium chloride, by dehydration of the said carnallite or mixture, followed by sublimation of the ammonium chloride, by heating in a reactor, in which process an inert gas (as defined) containing not more than 10 p.p.m. of water is passed through the reactor during and after the sublimation step, and optionally during the dehydration step too.  The inert gas may be air or nitrogen, the carnallite may be MgCl2.NH4Cl.6H2O and the hydrous MgCl2 MgCl2.6H2O and in the ratio of 1/2 mole per mole of NH4Cl in the mixture. The dehydration step may be at 135-178 DEG  C. for 0.5 to 24 hours, and the sublimation step at 345-385 DEG  C. for from 0.25 to 5 hours. The inert gas may be passed through the reactor at the rate of 0.5 to 10 feet per second.
Patent GB-971495-A (GB)
Title: Improvements in and relating to electron-optical image converter tubes
Inventor: SCHAGEN PIETER
IPC: H01J31/50
Filed: 1960-10-28
Abstract: 971,495. Cathode-ray tubes. MULLARD Ltd. Oct. 28, 1960, No. 37158/60. Heading H1D. An image converter comprises an evacuated envelope provided with a photo-emissive layer 3 and phosphor and second anode layers 5, 6, a focusing electrode 7 and a first anode 8. The arrangement is such that with a steady positive voltage applied to the second anode and a smaller voltage applied to the first anode, there is a spherical field distribution between the photo-cathode, focusing electrode and first anode providing an intermediate virtual image, while the first and second anodes form a second converging lens system, variable magnification being provided by variation of the first anode potential with consequent adjustment of the focusing electrode potential. As shown, the image intensifier tube comprises a concave photo-cathode 3, sensitive to visible, infra-red, ultraviolet light or X-rays, e.g. a caesiated-antimony layer, and a focusing electrode 7 in the form of an aluminium wall coating. The first anode 8 is supported from a glass envelope projection 11, and comprises an aluminium part 9 held in position with the aid of a crimped stainless-steel spring 12 and an aluminium part 10 spun over the annular flange 13, the two parts 9, 10 being connected by two lengths of platinum tape 14. The longitudinal axial distance between first anode 8 and layer 3 is preferably between 0.5 and 1.5 times the diameter of electrode 7 and the diameter of the larger end of part 10 at least twice or three times the shortest distance between first anode 8 and the second anode 6 provided on the green light-emitting sulphide phosphor layer 5. Suitable dimensions for a particular tube are given. In operation, layer 3 is at earth potential and second anode 6 is at 10 kv. while variable magnification is obtained by variation of the potential of first anode 8 between 0 and 10 kv. with consequent adjustment of the potential on electrode 7 between 0 and 600 v. The first electron lens produces an inverted virtual image and the second electron lens constituted by the first and second anodes a real image which may still be inverted. The spacing between the first and second anodes is chosen so that the barrel distortion produced by the second electron lens compensates for the pin-cushion distortion produced by the first electron lens. The radiation image may be focused on to the photo-cathode by means of a wide-aperture lens system of the Schmidt type having a light-gathering power of at least 100 times that of the dark-adapted eyes, and the intensified image may be viewed through a Ramsden type eyepiece having an exit pupil greater than 7.7 mm., Fig. 3 (not shown).
Patent GB-1276384-A (GB)
Title: A motion transmitting remote control assembly
IPC: F16C1/28
Filed: 1969-07-24
Abstract: 1276384 Bowden mechanisms TELEFLEX Inc 24 July 1969 [6 Nov 1968] 37262/69 Heading F2K A low-friction Bowden mechanism comprises a motion-transmitting core element (25), (Fig. 1, not shown), supported in a conduit (10) by balls 20 which rollably engage the core and the conduit inner wall and are retained by a one-piece tubular plastics cage 16 having an outside diameter smaller than the conduit bore. The balls may be received by plain bores 18 or partspherical sockets 30 in the cage and may be received by plain bores 18 or part-spherical sockets 30 in the cage and may be arranged in sets in transverse planes, or helically of the cage. The cage may be a plain tube (Fig. 1, not shown), or wound from a flat strip (Fig. 3), and its thickness is at least as great as the ball radius.
Patent GB-1031068-A (GB)
Title: Improvements in or relating to motion reduction mechanisms
IPC: G05G1/00
Filed: 1963-09-23
Abstract: 1,031,068. Linkworks; bearings. G. V. GRISPO. Sept. 23, 1964 [Sept. 23, 1963], No. 37271/63. Headings F2A and F2K. A work-holder 128 is moved, to a reduced scale, under a microscope by a hand control lever 41 through similar horizontal slides 10 and 12 and a coarse adjustment lever and slide 130 and 14. The slides 10 and 12 are mounted on a vertically movable base 16 biased upwards by a spring 114. The control lever 41 is universally jointed at 46 to the base 16 and acts through a ball joint 58 on a first longitudinal slider 30, of the slide 10, running on balls in horizontal grooves on a transverse slider 32, also running on balls in horizontal grooves on the base 16. The longitudinal slider 30 has a sprung friction pad 39 and moves through an adjustable bar 102, and a ball joint 106 a lever 82, universally jointed to the base 16 at 84 and moving a second longitudinal slider 30 of the slide 12 sliding on a transverse slider 32. The coarse adjustment slide 118 is ball-mounted in grooves on a transverse ball-mounted slide 120 which is mounted on the longitudinal slider 30 of the slide 14 and moved by the lever 130, universally jointed thereto and to the slide 118. The control lever 41 is axially movable in a bush 52 of the ball joint 58. The lower part of the Hooke's type universal joint 46 of the lever 41 is axially held and bushed in the base 16 and double jointed at 68 and 70 to a screw 64 running in a fixed nut 78 so that rotation of the control lever 41 raises the base 16 and hence the work holder 128. The horizontal bar 102 has its ball joint 106 vertically slidable on the lever 82 and is manually preset on a vertical post 104 of the main slide 30 to adjust the velocity ratio of the apparatus. The lever 82 has upper and lower part-spherical members 86 forming the load and fulcrum points, the former of which is biased by a spring 96 in the base 16 into a recess 90 of the second slider 30.
Patent GB-785576-A (GB)
Title: Improvements in or relating to the catalytic conversion of gasoline hydrocarbons
IPC: C10G21/00
Filed: 1955-12-30
Abstract: Gasoline which contains paraffins and naphthenes is reformed in the presence of hydrogen by a reaction which includes dehydrogenation of naphthenes and dehydrocyclization and hydrocracking of paraffins, separating the normally gaseous reaction products from the normally liquid reformed product, subjecting the latter to an extraction treatment and therein separating the same into a raffinate poor in aromatic hydrocarbons and into an extract rich in aromatic hydrocarbons, subjecting the raffinate to fractional distillation and therein separating a low-boiling fraction comprising isohexanes from a higher boiling raffinate fraction containing normal hexane, and returning the higher boiling raffinate fraction to the reforming zone and subjecting it to the catalysed reforming reaction in admixture with the fresh gasoline charge.  The reforming catalyst is preferably a platinum-alumina-silica catalyst of the type described in U.S.A. Specification 2,478,916 or a similar catalyst modified with a halogen as described in Specification 657,565. Other catalysts such as molybdena-alumina, chromia-alumina and platinum on a cracking catalyst base may be used.  The reforming may be effected at 316-538 DEG  C., at pressures within the range of 3.4 to 68 atmospheres and a weight hourly space velocity of 0.5 to 20.  The hydrogen present may be in the range of 0.5 to 20 mols. of hydrogen per mol. of hydrocarbon.  A preferred solvent for the extraction step is a mixture of water and a hydrophilic organic solvent such as alcohol, diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol and sulphur dioxide.
Patent GB-339491-A (GB)
Title: Process for the manufacture of acetone
IPC: C07C45/00
Filed: 1929-12-06
Abstract: 339,491. Elkington, H. D., (Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij). Dec. 6, 1929. Acetone; hydrogren.-Acetone and hydrogen are produced by passing isopropyl alcohol vapour, with or without admixture with other gases, through a liquid medium heated to a temperature between 300‹ and 700‹ C. The liquid medium may be a molten metal or alloy, especially molten lead, or molten salts or salt mixtures, e.g. mixtures containing, in molecular proportions, 1 BaCl2 + 1 CaCl2, 4 CaF, + 1 CaCl2, 1 MgCl2, + 2 KCl, 3 KCl + 1 CaCl2, 1 NaCl + 1 KCl The liquid medium selected should not attack the isopropyl alcohol or the acetone, nor should it promote undesirable side reactions such as coking. Contact of the vapours with iron should be avoided; the reaction vessel mav be made of or lined with copper or chromium or other non- ferrous metals or with other materials resistant to the action of isopropyl alcohol vapours. By suitable regulation of the gas velocity, almost complete conversion of the isopropyl alcohol may be effected. The outflowing gases are cooled, so that the acetone is condensed, and the hydrogen may be recovered separately. In the reaction. small amounts of carbon dioxide, carbon monoxide, unsaturated hydrocarbons, methane, and other hydrocarbons may be produced.
Patent GB-1453167-A (GB)
Title: Skin protective gel
IPC: A61L27/00
Filed: 1974-08-28
Abstract: 1453167 Skin protective gel HOLLISTER Inc 28 Aug 1974 [4 Sept 1973] 37574/74 Heading A5B Pharmaceutical preparations for topical application for reducing irritation of the skin in the area of a stoma and/or improving the adhesion of a surgical device to the skin comprise a gelatinous mixture of (by weight): 25 to 90% isopropanol; 0.1 to 5% sorbic acid, butyl or methyl parahydroxy benzoate as preservative; 0 to 50% polyvinyl pyrrolidone K-30; 5 to 50% of a film-forming agent chosen from a monoisopropyl ester of polyvinyl methylether and polyvinyl methyl ether; and 1 to 10% of a gelling agent chosen from hydroxy propyl cellulose and polyacrylic acid cross-linked with polyallyl sucrose, the proportions of ingredients being such that the preparation is in the form of a gel which, when applied to the skin, dries to a coating thereon which improves the adhesion of the skin to the adhesive face of an ostomy appliance and also protects the skin against irritation. The preparations may also contain water, and/or a polyoxyethylene cocoamine.
Patent GB-363817-A (GB)
Title: Improvements in revolving flat carding engines
IPC: D01G15/08
Filed: 1930-12-13
Abstract: 363,817. Carding engines. FINE COTTON SPINNERS & DOUBLERS ASSOCIATION, Ltd., HAIGH, C. H., and HINDLEY, J., St. James's Square, Manchester. Dec. 13, 1930, No. 37622. [Class 120 (i).] In a revolving flat carding-engine a wire-covered roller D, Figs. 1 and 2, disposed above the licker-in B and set so as to pick or strip tufts of fibre or seed off the cylinder A and return them to be opened by the licker-in is rotated in the opposite direction to the cylinder, i.e. with the adjacent surfaces moving upwards in the same direction, and in the same direction as the licker-in, i.e. with the adjacent surfaces moving in opposite directions, and is driven at a much slower surface speed than either the cylinder or the licker-in. The roller D is carried adjustably in brackets H, H<1>, H<2> and is driven by a rope from the cylinder shaft through a gear train k, k<1>, k<2>, Fig. 3: The flats C may be driven from the pulley K<1>. The seeds &c. are removed from the licker-in by the mote knives b<1> and grid bars b.
Patent GB-1356178-A (GB)
Title: Motor vehicle safety device
IPC: B60R21/16
Filed: 1971-08-11
Abstract: 1356178 Impact sensing device; indicators NISSAN MOTOR CO Ltd 11 Aug 1971 [2 Oct 1970] 37696/71 Headings B7B and B7H An impact sensing device for use with a safety device 17, e.g. a crash restraint bag or safety net, comprises switches 10 and 11 arranged on a vehicle one behind the other and a delay circuit 14, which inhibits actuation of the safety device unless the switches 10 and 11 are closed within a time interval shorter than the time constant of the delay circuit. The switch 10 is secured on the outer surface of a bumper 12, while the switch 11 is fixed on the vehicle body 13, such that deformation of the bumper 12 closes switch 11. The delay circuit 14 may comprise an RC circuit the time constant of which is adjustable. An indicator lamp (34), Fig. 3 (not shown), is lit when the safety device is not actuated because the switch 11 was closed outside the time interval set.
Patent GB-1176809-A (GB)
Title: Method of Following the Progress of the Refining of Pig Iron.
IPC: C21C5/30
Filed: 1967-08-16
Abstract: 1,176,809. Refining iron. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. Aug.16, 1967 [Aug. 23, 1966(2)], No. 37701/67. Heading C7D. The decarburizing of iron by a top-blowing process is monitored by collecting the furnace gases in a hood into which air is drawn, and measuring the intensity of the radiation emitted by the combusion of carbon monoxide in the hood, this intensity being related to the rate of decarburization of the iron. The measurement may be made by means fixed at different levels in the hood, or by an adjustable means which is so orientated that the line of measurement intersects the flame in an area of substantially complete combustion.