baber/WOPTO huggingface dataset:
Patent GB-492075-A (GB)
Title: Improvements relating to guiding lanterns
IPC: F21V13/10
Filed: 1937-07-14
Abstract: 492,075. Beacon-lights. BROWN, A. G., and PATERSON, C. C. July 14, 1937, No. 19557. [Class 75 (iv)] A guiding or beacon light suitable for use during air-raids comprises an opaque housing 16 surrounding an incandescent electric lamp bulb 14 and having in its lower surface a small hole 20 allowing the passage of light to a polished rustless steel ball 38 detachably mounted in a screen 34 attached by stays 36 to the skirt 33 of the housing. The skirt 33 is of sufficient length to prevent the diffusion of upwardly directed light rays. The body of the housing is detachably secured to the upper part by a ring 22 fitted with bolts and wing-nuts 28, a rubber gasket 32 being interposed. A cone or a right-angled isosceles prism may be substituted for the ball 38. In a modification the screen 34 is dispensed with and a ball, cone, or prism fixed to the lower edge of a vertical transverse partition attached to the bottom of the housing 16 is illuminated on one side by light passing through a hole covered by a red glass screen and on the other by light passing through a hole either uncovered or covered by a screen of different colour.
Patent GB-701177-A (GB)
Title: Improvements relating to the winning of bitter substance from hops
Filed: 1951-08-20
Abstract: The residue from the extraction from hops of the water-soluble alpha bitter acid is suspended in an aqueous alkaline solution and the suspension is oxidized so as to convert the beta bitter acid into water-soluble soft resin, the liquid being separated for addition to wort.  Alternatively, the extraction residue whilst moist is oxidized and the soft resin is leached out with water or an aqueous alkaline solution.  The reaction may be effected at a temperature of 70 DEG -80 DEG C and may be accelerated by irradiation with ultra-violet light or by the addition of an oxide or hydroxide of iron, copper, manganese, chromium, cobalt or nickel as a catalyst.  In examples, (1) a suspension of washed spent hops in an aqueous solution of sodium hydroxide or carbonate, preferably of pH 9-11, is oxidized by blowing oxygen or air or other oxygen-containing gas mixture there-through or by strong agitation, the hop residue and insoluble hard resins formed as by-products being removed by straining, (2) spent hops are aerated or treated with oxygen or an oxygen-forming substance, e.g. hydrogen peroxide, while still moist on the hop strainer, then suspended in a sodium carbonate solution of pH about 9 and the solution strained off.  Specification 677,740 is referred to.
Patent GB-459524-A (GB)
Title: Improvements in or relating to the manufacture of preparations containing vitamin
IPC: A61K31/44
Filed: 1935-07-09
Abstract: The concentration of vitamin H (preventing skin diseases) from fractions obtained, for instance from yeast or by digesting liver with papain, is effected by treating a crude solution by electrodialysis between a number of diaphragms arranged between the electrodes of an electrolytic cell.  In an example, liver residue is digested with papain, phosphotungstic acid is added to the solution, and the precipitate is decomposed with baryta, yielding a dark-brown crude vitamin H solution of 4000 rat. units in 200 c.c.; the solution is diluted to 620 c.c. and electrodialyzed between platinum foil electrodes separated by parchment diaphragms into a total of ten cells.  Current is supplied at 220 volts.  After 24 hours the cell having pH 3,8 shows 200 rat. units, those at pH 2,5 and 3,0 have 1,000 rat. units each, that at pH 2,6 has 800 rat. units, and that at pH 2,3 has 320 rat. units, the other cells having little activity. The active solutions may be purified further in known manner, for instance by extraction with butyl alcohol and precipitation of inactive substances with acetone.
Patent GB-1223749-A (GB)
Title: Braking apparatus
Inventor: YOSHIHARA HAROU
IPC: F16H1/32
Filed: 1968-04-25
Abstract: 1,223,749. Braking apparatus. H.YOSHIHABA. 25 April, 1968, No. 19621/68. Heading F2E. A braking mechanism for retarding the rotation of a shaft 11 by applying a reverse torque to it, comprises a second shaft 13 obliquely journalled in shaft 11 and provided at its outer end with a bevel gear 18 meshing with a fixed bevel gear 19, in order to prevent rotation of shaft 13 relative to shaft 11, and a ball race 14 the plane of which intersects the point of intersection of the axes of shafts 11 and 13. A ball race 16, coacting with ball race 14, is fixed in a housing 15 rotatable in brake housing 20 about the axis of shaft 11 and is normally driven synchronously with shaft 11 through a pair of epicyclio gears surrounding shaft 11 such that the ball races 14, 16 rock synchronously. When braking is required, the rotation of housing 15 is retarded, via handle 29 and the epicyclic gears, so that the rooking motion of ball races 14, 16 is no longer synchronous and therefore a reverse torque is applied to the shaft 11.
Patent GB-596631-A (GB)
Title: Improvements in or relating to gauge tubes for liquid column gauges
IPC: G01F23/02
Filed: 1945-07-31
Abstract: 596,631. Gauge tubes. STEWART, J. C., and WHITE FOX INSTRUMENT CO., Ltd. July 31, 1945, No. 19622. [Class 106 (ii)] A rod is inserted into a gauge tube to economize in the liquid, which may be mercury. The rod may be of any section, that in Fig. 4 being square and touching the tube at the corners. Pips may be provided on the rod to space it from the walls of the tube centrally or eccentrically, Fig. 7 (not shown). In Fig. 9, the ends of the rod are enlarged and fluted to permit passage of the liquid or air, the tube having a top vent. In Fig. 11, the tube is in the form of a transparent panel with a scale on either front or back.
Patent GB-965493-A (GB)
Title: Cation-active latices
IPC: C08F2/22
Filed: 1962-05-22
Abstract: Cation-active latices of polymeric materials are produced by polymerizing an ethylenically unsaturated organic compound using a free radical catalyst in aqueous medium in the presence of a quaternary ammonium compound of formula: <FORM:0965493/C3/1> where R1 is an alkyl or cycloalkyl radical of at least 10 carbon atoms, R2 is hydrogen, methyl or ethyl, A is a saturated aliphatic hydrocarbon radical of 2 to 5 carbon atoms and R3, R4 and R5 which may be the same or different are alkyl radicals containing 1 to 4 carbon atoms which may bear non-ionic substituents, or aralkyl radicals which radicals R3, R4 and R5 may also contain hetero-atoms and X- is an anion which will form a water-soluble salt with the cation above.  X may be chlorine, bromine, methyl sulphate or ethyl sulphate. Specified compounds are N-tetradecyl -N1- (3-dimethylamino)-propylurea and N-dodecyl -N1- (3-dimethyl amino)-propylurea both quaternised with dimethyl sulphate, N-octadecyl -N1- (3-dimethylamino) propylurea quaternised with bromoethanol and with benzyl chloride, N-octadecyl -N1- (2-dimethylamino) -ethylurea quaternised with dimethyl sulphate, N-octadecyl -N- methyl -N1-(2-di-methylamino) ethyl urea quaternised with benzyl chloride and N-tetra-decyl-N1-(4-diethylamino) -1- methyl-butyl-urea quaternised with dimethyl sulphate. The emulsifiers are preferably used in an amount of 1 to 10 per cent based on the monomer.  Specified monomers are vinyl acetate, propionate or butyrate, vinyl ethers, vinyl chloride, vinylidene chloride, acrylic and methacrylic acids, esters, amides or nitriles, acrolein, methyl vinyl ketone styrene, styrenes alkylated or halogenated in the nucleus and side chains, divinyl benzene, butadiene, isoprene, chlorobutadiene, 2-3-dichlorobutadiene, 2-3-dimethyl butadiene, and esters, amides and nitriles of maleic and fumaric acids; especially suitable are the polymerization of chloroprene and its copolymerization with methacrylic acid and/or 2-3-dichlorobutadiene, the homopolymerization of butadiene and isoprene and copolymerization with styrene acrylic or methacrylic acid, their esters and acrylonitrile as well as homopolymers of acrylic and methacrylic acid esters. Free radical catalysts such as inorganic and organic peroxy compounds, nitrogenous compounds and Redox Systems are used preferably in the presence of corylsing agents, e.g. ethylene diamine tetraacetic acid and regulators, e.g. long chain mercaptans and diisopropylxanthrogen disulphide. Stabilizers, e.g. condensation products of cresols with camphene, 2-6-di-t-butyl-p-cresol may be present during the polymerization. The emulsifier may be added continuously or in stages or at the start of polymerization and may be accompanied by non-ionic emulsifiers.
Patent GB-275229-A (GB)
Title: Switch-device for the electric-hooter and the direction-indicator of motor-cars
IPC: B60Q1/14
Filed: 1927-07-25
Abstract: 275,229. Unterberg, G., (Assignee of Leupold, C.). July 31, 1926, [Convention date]. Press - button switches ; retractive switches.-The steering wheel of a motorvehicle is provided with a switch for the hooter n comprising a U-shaped ring a carrying contacts adapted to be depressed against spring action into engagement with contacts on a lower ring b and switches for direction indicators p comprising a series of pushbuttons f mounted in inwardly - projecting extensions of the ring b. The ring b leads the current to the buttons f which may be depressed to engage insulated contacts h connected to the different indicators. The indicators may be " left," " right," " straight " and " stop," and the push-button controlling the " straight" " indicator may also disengage the "stop indicator.
Patent GB-1096615-A (GB)
Title: Improvements in or relating to demodulating circuit arrangements
Inventor: SCHELISCH ERNST FRIEDRICH
IPC: H03D5/00
Filed: 1964-05-12
Abstract: 1,096,615. Demodulation circuits. MARCONI CO. Ltd. Jan. 29, 1965 [May 12, 1964], No. 19711/64. Headings H3Q and H3R. In a demodulating arrangement for amplitude, frequency or phase modulated signals the gain of an amplifier following the demodulator is varied to compensate the signal amplitude for non-linear distortion introduced in the demodulator. Received amplitude modulated signals are applied with a signal from source 9, having a frequency F2, different from the carrier and modulating signal frequencies, to the input of detector 3 and the modulation signals are selected by filter 4 and passed via a delay 5 and controlled amplifier 6 to output terminal 8. The second harmonic 2 F2 of the signal from source 9 at the output of the detector is a function of detector non-linearity and varies in phase by 180 degrees as the detector input rises above and falls below the level corresponding to the point of inflection of the detector characteristic. This signal is selected by filter 14 and compared in phase detector 15 with a similar frequency signal obtained from source 9 via doubler 16 and phase shift circuit 17. The output of the phase detector is amplified 13 and used to control the gain of amplifier 6. The delay circuit 5 compensates for the delay in the control loop. In a frequency modulation arrangement, Fig. 3 (not shown), a discriminator replaces the detector 3 and the signal from source 9 frequency modulates a local oscillator feeding a frequency changer stage preceding the discriminator.
Patent GB-404622-A (GB)
Title: Improvements in or relating to pressure gauges
IPC: G01L23/00
Filed: 1932-07-12
Abstract: 404,622. Pressure gauges. TAYLOR, J., 7, Winton Circus, Saltcoats, Ayrshire, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. July 12, 1932, No. 19735. [Class 106 (ii).] A gauge for measuring base pressures in small arm and shotgun cartridges comprises a container housing one or more piezo-electric crystals and located in the breeching of the small arm, the construction being such as to permit the striker to pass through to fire the cartridge cap. The device comprises a steel tube 3 with an insulating lining 4, a front steel disc 1 into which is screwed an inner steel tube 2, a front copper disc 5, a quartz crystal 6, a rear copper disc 7 having a shoe 15 and an insulating bush 19, and a rear steel disc 9. The steel firing-pin 10 passes through the device as shown. The device is fixed in a steel housing 12 by a screw 16, while the housing 12 fits into the rifle breeching 13 holding the cartridge 14. A handle 18 manipulates the housing 12. The metal housing is earthed and a contact pin 11 bearing on the shoe 15 is connected to one terminal of a ballistic galvanometer. Other recording means, such as a cathode ray oscillograph, may be used. Two quartz or tourmaline crystals may be used, turned to disc shape and drilled each with a central hole, and mounted with faces of like polarity towards each other but separated by an insulated plane disc of copper or other good conducting metal. The crystal faces may be plated with copper, instead of, or in addition to providing the discs.
Patent GB-1580826-A (GB)
Title: Reaction vessel
IPC: B01J19/18
Filed: 1977-05-11
Abstract: A base vessel (1) having a predefined design and a likewise predefined cascade attachment (3, 21) are assembled, by means of a flange connection (12), to form a reaction vessel. By connecting a plurality of such reaction vessels in series, reaction cascades for carrying out multi-step chemical reactions proceeding continuously can be assembled as required. The base vessel (1) contains agitator appliances (8-10), while the cascade attachment (3, 21) is provided with product inflow and outflow arrangements (13, 14, 17, 19). Depending on the specific cascade attachment (3, 21) being used, the reaction vessel can be fashioned as an open or as a closed vessel. The fitting and energy connection elements (11, 12, 18) and the product inflow and outflow arrangements (13, 14, 17, 19) at the vessel parts (1, 3, 21) are designed in such a way that the reaction vessels can be mounted directly onto stationary support arrangements having fixed connection elements. <IMAGE>
Patent GB-685839-A (GB)
Title: Improvements in or relating to suspended textile spinning centrifuges
IPC: D01D7/02
Filed: 1949-07-27
Abstract: 685,839. Spinning centrifuge. HAMPEL, H. July 27, 1949. No. 19808/49. Class 120 (ii). Also in Group XXXV. A suspended textile spinning centrifuge comprises a spinning pot secured below a driving motor and a hollow driving shaft through which the material to be spun passes to the spinning pot and is suspended, at a position above the spinning pot and preferably from its motor housing, by a Cardan joint. In the form shown, the textile spinning centrifuge comprises a motor housing 1 containing the stator coil 2 of an electromotor, a shaft 6, on the upper end of which is mounted the rotor 7 of the electromotor and to the lower end of which is secured a circular disc 8. A spinning pot 9, in which the spun cake 47 is formed, is secured to the underside of the disc 8. On the motor housing are mounted two diametrically opposite pins 28 which engage and are free to rotate in corresponding bores in a ring 29. The ring 29 is also rotatably mounted, by means of two diametrically opposite pegs 30, in a bearing bracket 31, the axes of the pegs 30 being at 90‹ to those of pins 28. A rubber ring 32, or other resilient means, is provided on the bearing bracket 31, the upper surface of said ring pressing against the rim of a cover 34 screwed on to the end of the motor housing, thus damping any gyroscopic movements of the centrifuge, which may occur in its operation. The bearings 4 and 5 are lubricated by a continuously circulating stream of oil from an oil container comprising the disc 8 and a cylindrical casing 13, by way of two channels 18 in a ring 15, each channel being connected with a rising tube 19 which carries the oil into the space above the ball race 4. The oil is forced into the channels 18 by virtue of the rotation of the container. The thread delivery funnel comprises an outer funnel 40 connected in a liquid tight manner with an inner funnel 42, which has a short discharge tube 43 entering into the funnel tube 36 of the outer funnel 40. A liquid, vaporous or gaseous medium may be fed through the connecting pipe 41 to assist the passage of the thread to be spun, down the tube 36. The spinning pot 9 is enclosed in a steel casing 56 provided on the inside and outside with a corrosion proof coating, and which screws into the casing 55 of the bearing housing 3. The lower end of the casing 56 is provided with a cover 59, which may be hinged to the casing and provided with a locking device 63. The cover 59 has a central aperture through which any liquid accompanying the thread is discharged. A rubber band is looped across the bottom of the spinning pot to prevent the spun cake falling out of the pot when the centrifuge is at rest.
Patent GB-803562-A (GB)
Title: Esters of chloramphenicol
Filed: 1956-06-27
Abstract: The invention comprises chloramphenicol mono- and di-esters of the general formula <FORM:0803562/IV (b)/1> wherein R1 and R2 are the same or different and each represent the residue of an O-acylated a -hydroxy acid (e.g. one in which the O-acyl residue is that of a fatty acid or of an unsaturated acid containing a phenyl residue, in either case containing not more than 20 carbon atoms), or R1 may represent hydrogen, the preparation thereof by reacting chloramphenicol with an O-ester of an a -hydroxy acid or a functional derivative thereof (e.g. the acid chloride or bromide), and pharmaceutical preparations containing the esters (see Group VI). Examples describe the preparation of chloramphenicol 3-mono-(stearoyl-, arachidoyl-, lauroyl-, caproyl-, acetyl-, oenanthoyl-, palmitoyl-, butyryl- and cinnamoyl-glycollate), 1:3-di-(acetyl- and butyryl-glycollate), and 3-mono-(stearoyl-lactate and -mandelate).  The acid chlorides of stearoyl-, palmitoyl- and butyryl-glycollic acids are prepared by adding the acids to warm thionyl chloride. Specifications 687,047 and 701,997 are referred to.ALSO:Therapeutic preparations contain, in addition to an inert diluent, one or more mono- or diesters of chloramphenicol of the general formula:  <FORM:0803562/VI/1> wherein R1 and R2 are the same or different and each represent the residue of an O-acylated a -hydroxy acid (e.g. the residue of glycollic, lactic or mandelic acid acylated with a fatty acid or with an unsaturated acid containing a phenyl residue, these each containing not more than 20 carbon atoms), or R1 may represent hydrogen.  The esters of higher molecular weight are more suitable for oral administration and depot therapy, and those of lower molecular weight for parenteral administration, e.g. by intramuscular injection of solutions thereof.  The esters may also be administered in admixture with free chloramphenicol or other pharmaceutically active ingredient. Specifications 687,047 and 701,997, [Group IV (b)], are referred to.
Patent GB-792773-A (GB)
Title: Improvements in and relating to fluorescent lamps, fluorescent lamp coatings, coating suspensions for coating fluorescent lamps and methods of coating fluorescent lamp tubes
IPC: C09K11/02
Filed: 1954-07-07
Abstract: A coating suspension for fluorescent lamps comprises a powdered phosphor, between about 0.05 and 2 per cent of highly purified amorphous silica by weight of the phosphor, and a suspending vehicle. The phosphor has a particle size of about 6 microns and the silica a particle size of about 0.02 micron.  The suspending vehicle can be a mixture of Armeen CD, which contains several primary amines, and an ethyl cellulose solution containing dibutyl phthalate, xylol and butanol.  Proportions are given.  The suspension is allowed to flow down the inside of the lamp envelope which is then dried and baked in a furnace for about 1 minute at about 500 DEG  C.  Specifications 691,127 and 721,827, [both in Group XL (a)], are referred to.
Patent GB-1386527-A (GB)
Title: Production of image-receiving material for use in a photographic  diffusion-transfer process
IPC: G03C8/28
Filed: 1973-04-26
Abstract: 1386527 Photographic materials FUJI PHOTO FILM CO Ltd 26 April 1973 [26 April 1972] 20004/73 Heading G2C Image-receiving material for a photographic diffusion-transfer process is formed by hydrolyzing at least the surface stratum of a cellulose ester layer which contains at least one white pigment and before, during or after the hydrolysis introducing physical development nuclei into said portion. The layer may be self-supporting or on a support, e.g. paper or cellulose acetate pigmented with carbon black. The pigments used in the Examples are titanium dioxide and lead oxide.
Patent GB-516775-A (GB)
Title: Improvements in or relating to fused salt electrolysis cells
IPC: C25C3/02
Filed: 1938-07-06
Abstract: 516,775. Fused electrolyte cells. DU PONT DE NEMOURS & CO., E. I. July 6, 1938, No. 20060. Convention date, July 6, 1937. [Class 41] In the electrolysis of fused salts means are provided to promote' a rapid surface flow of electrolyte at the point at which gas is disengaged therefrom; splashing of electrolyte and consequent clogging of the gas exit is thereby prevented. In a cell for the the electrolysis of alkali metal choride of the kind comprising a cylindrical anode separated by a wire gauze diaphragm from an external annular cathode, a gas - collecting hood 6 is mounted above the anode and is surmounted by a graphite dome 7. Electrolyte and gas flow upwardly between the dome 7 and a graphite tube 14 ; the electrolyte overflows through slots 21 into the interior of the tube and returns to the anode space, the gas becoming disengaged without splashing. The tube 14 is provided with an extension 13 on which are lugs 17 normally resting on a ring 15 supported by arms 16. In order to prevent freezing of electrolyte in the slots 21 during short intervals in running, the tube 14 may be lowered by turning it so that the lugs 17 engage grooves in the ring; the ring is thereupon engaged by the upper stops 19. In a modification the slots 21 are dispensed with, the electrolyte flowing over the top of the graphite tube. The tube 14 may be of metal when a non- corrosive gas such as hydrogen is being collected. The hood 6 is formed with an annular metal collector 5 surmounting the cathode.
Patent GB-1536632-A (GB)
Title: Person weighing scales
IPC: G01G19/44
Filed: 1977-05-12
Abstract: 1536632 Weighing apparatus P TERRAILLON 12 May 1977 [18 Aug 1976] 20061/77 Heading G1W Scales housed in a body 10 and having a plate 12 for receiving a person to be weighed are enclosed with padding 1 (e.g. plastics foam) inside an envelope 2 to give the scales the external appearance of a cushion. A display device indicating the weight is read through window 14. An inner envelope 8 may be provided, with padding between the two envelopes 2, 8 and they may be closed with a zip fastener 6. The window 14 may be translucent, the display device being provided with lighting.