baber/WOPTO huggingface dataset:
Patent GB-433769-A (GB)
Title: Improvements in or relating to installations comprising an electric discharge tube
IPC: H05B41/40
Filed: 1935-04-24
Abstract: 433,769. Discharge devices. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. April 24, 1935, No. 12342. Convention date, July 30, 1934. [Class 39 (i)] A gas-discharge tube, such as a lamp, is provided with an incandescent cathode and is connected in series with a choke coil, provided with tapping points, and the primary winding of the transformer, which supplies the heating current to the cathode, is connected to the choke coil in such manner that it may be connected in series with a part of the coil to the source of current for the tube. A sodium-vapour lamp 1 is provided with cathodes 2, 3 which are connected to secondary windings 4, 5 of a transformer 6, the primary winding 7 of which has its ends connected respectively to a tapping on a choke coil 10 and to the cathode 3 and terminal 8 of a current source 9. The coil 10 is connected at one end, to the cathode 2, and, at the other end, to the terminal 12 of the source 9 through a tapping. Upon a variation of the supply voltage the tappings are varied to maintain the normal voltage across the primary winding 7 and also the normal discharge current. The winding 7 may be connected permanently to the end 15 of the coil, and the arrangement may be used in cases where the frequency of the supply varies. Further, the winding 7 may be extended to form an autotransformer one end of which is connected through a resistance to a starting electrode. Numerical values are given in the Specification.
Patent GB-646539-A (GB)
Title: Frequency-modulated wave-signal detector system
IPC: H03D3/10
Filed: 1948-05-05
Abstract: 646,539. Frequency modulation. HAZELTINE CORPORATION. May 5, 1948, No. 12383. Convention date, May 16, 1947. [Class 40 (v)] The effects of undesired amplitude-modulation in a frequencymodulation receiver are removed or reduced in two stages, the first comprising a limiter or an A.V.C. stage, and the second a discriminator-detector stage. The amplitude-modulation reduction factor for the final stage follows the curve F, Fig. 4, the signal input being plotted as abscissa ; and for the discriminator stage, follows the curve E. Their joint effect is shown at G, indicating almost complete suppression over the carrier input range e<SP>2</SP>-e<SP>4</SP> and considerable reduction over part of the range e<SP>1</SP>-e<SP>2</SP>. In Fig. 1, the I.F. carrier is applied to an amplifier 26 whose tuned anode circuit 28, 29 is closely coupled to a circuit 30 including a germanium or other rectifier 32, condensers 33, 36, and a resistor 37. The voltage across resistor 37 is applied an A.V.C. voltage to the earlier stages of the set, and reduces the range of carrier input applied to the amplifier 26. The voltage also serves to bias the rectifier and causes the limiting level to vary with the carrier input as described in Specification 639,731, the reduction factor of the undesired amplitude modulation being as shown by the curve F, Fig. 4. The discriminator-detector stage, which may be of the kind described in U.S.A. Specification 2,498,253 comprises off-tune circuits 46, 47 connected through condensers 53, 54 to diode rectifiers 49, 50 across which is connected a resistance-shunted condenser 55, 56. Detected output is taken to an audio amplifier 15 through chokes 57, 58 and a condenser 59. The amplitude-modulation reduction factor for the discriminator, shown at E, Fig. 4, crosses the zero line at an intermediate value of carrier input, indicating that for high carrier input, positive amplitude modulation on the carrier produces negative voltage at the audio amplifier 15. In a modified circuit, Fig. 5, the limiter is replaced by a fast-acting delayed A.V.C. circuit, comprising a rectifier 63 with its anode coupled to the anode of the amplifier 26<SP>1</SP> and its cathode biassed by a D.C. source +B and resistors 75, 77. The load resistor 66 is shunted by a condenser 67, and the A.V.C. output across resistor 66 is fed to the earlier stages through a smoothing filter 70, 71. The time constant of those circuits is much less than the shortest period of the undesired amplitude modulation. For weak signals, the delay voltage prevents any A.V.C. effect, but for the higher range of signal strength, the A.V.C. action gradually reduces the amplitude modulation towards zero. The curve F, Fig. 4, is thus replaced by a curve which is horizontal at unity level for signals up to the strength e2, and beyond that falls similarly to the curve F. .The discriminator-detector circuit of Fig. 5 is the same as that of Fig. 1.
Patent GB-1032838-A (GB)
Title: Hydrogenation process
IPC: C10G65/08
Filed: 1965-03-24
Abstract: The selective hydrogenation of mono-cyclic aromatic hydrocarbons in an aromatic hydrocarbon mixture, is effected in two stages, in the first with at least 800 SCF of hydrogen per barrel at 300-500 p.s.i.g. and at least 400 DEG  F. but below reforming temperatures over a platinum catalyst with a LHSV of 0.5-12 and in the second, after separation of gases from the effluent, with 800 SCF per barrel of catalyst-poison-free hydrogen at 300-500 p.s.i.g. and at least 400 DEG  F. but below reforming temperatures over a platinum catalyst with a LHSV of 0.3-12. The monocyclic aromatic content of the feed is preferably below 40% vol., product being recycled as diluent if necessary, to prevent temperature rises in the reaction of more than 150 DEG  F. Product may also be recycled to the second stage.
Patent GB-777770-A (GB)
Title: Improvements in or relating to highly active platinum group metal catalysts
IPC: B01J27/13
Filed: 1955-04-29
Abstract: A platinum-group metal catalyst, used for hydroforming naphthas, is prepared by contacting a dilute aqueous slurry of alumina, 5 to 25 wt per cent, with a dilute aqueous solution of a water-soluble compound of a platinum group metal, e.g. chloroplatinic acid, in the presence of an adsorption modifier, as hereinafter defined; separating the impregnated alumina from the slurry; drying and contacting the catalyst with chlorine, e.g. at 600 to 1100 DEG C. and chlorine partial pressure of 0.001 to 1 atmospheres and preferably for 10-30 minutes using 0.5-3 per cent by weight of chlorine by weight of catalyst.  The adsorption modifier is any polar compound which improves the adsorbability of the platinum metal compound in the body of the alumina and does not poison the catalyst, e.g. acidic materials such as trichloracetic acid, nitric acid, acetic acid, aqua regia, aluminium chloride or nitrate and ammonium chloride or nitrate; mercaptans; phenols and chlorohydrin.
Patent GB-979184-A (GB)
Title: An article for the care of the legs
IPC: A61K9/70
Filed: 1961-04-07
Abstract: 979,184. Surgical dressings. A. CURTAY. April 7, 1961 [May 21, 1960], No. 12519/61. Heading A5R. A device for treatment of legs comprises an outer stocking of liquid-impervious plastic material and an inner stocking which is elastic and pervious to liquids and which is impregnated with a liquid. A stocking 2 or sock of absorbent elastic material, e.g. woven or knitted cotton, is impregnated with cream or lotion and is covered by an impermeable synthetic plastic or rubberized fabric sheath 3 which has an elastic band 4 at the top. The stocking or sock and the sheath may be joined.
Patent GB-917101-A (GB)
Title: A process for the production of eupolyoxymethylene
IPC: C08G2/00
Filed: 1960-04-08
Abstract: Eupolyoxymethylenes are prepared by polymerization of oligomers of formaldehyde using a halogenated hydrocarbon as catalyst.  Trioxane is the specified oligomer and carbon tetrachloride, chloroform, methylene chloride, bromoform, dichloroethylene, n-propyl chloride and aryl chloride.  Amine or metal carbonyl catalysts known per se, may be used in admixture with the halogenated hydrocarbon.  The polymerization temperature is preferably 50 DEG  to 90 DEG C.
Patent GB-559660-A (GB)
Title: Improvements in and relating to containers for fragile articles
IPC: B65D5/49
Filed: 1942-09-09
Abstract: 559,660. Containers for ceramic ware &c. STEVENSON & SONS, Ltd., H., STEVENSON, H. J., and MOORE, E. R. Sept. 9, 1942, No. 12703. [Class 18] A container for fragile articles such as glassware or ceramic ware is provided with a set of compartments as shown, formed from a single blank of elongated rectangular shape folded to form a series of compartments closed at the bottom D and subdivided by partitions A. Several such sets of compartments may be positioned in a container by loose blocks, the container having one open end. Extensions from the walls D may form additional walls for the main compartments.
Patent GB-505310-A (GB)
Title: Improvements in and relating to steam turbine plants
IPC: F01D15/02
Filed: 1938-04-28
Abstract: 505,310. Turbine plant. JEBENS. 0., and BOEK, R. April 28, 1938, No. 12730. [Class 110(iii)] A turbine plant with an advance cruising turbine using a one-third partial-admission velocity-compounded first stage with two rows of blades 5, 5<1> to precede later ordinary stages 7 .. 7<111> for cruising speed is arranged so that at full speed steam is supplied over only the remaining two-thirds admission area and only to the first row of blades 5 whence the steam passes direct to the main turbine (not shown). This steam from the first row of blades 5 passes through radial pasages 13 to a space 14 extending about two-thirds around the casing and thence by the open valve 12 to a pipe 15 leading to the main turbine casing. The ring in which the radial passages 13 are provided has shrouding rims 16 to shield the second row of blades over the two-thirds periphery and has guide blades 6 over the other one-third periphery. The valve 12 is operated in mechanical connection with the change-over valves of the nozzle chests.
Patent GB-706314-A (GB)
Title: Improvements in devices, such as writing instruments, for applying semi-fluid compositions to solid surfaces
IPC: A45D40/26
Filed: 1949-05-12
Abstract: <PICT:0706314/III/1> In a ball-pointed instrument, such as a pen or an applicator for semi-fluid compositions, the ink or other viscous composition is contained in a substantially straight tubular reservoir 11 of more than 3.5 mm. bore, and is vented to atmosphere through a passage 24 of less than 3.5 mm. bore and of such a volumetric capacity that it can accommodate the maximum volumetric expansion of the contents of the reservoir likely to be encountered during normal use of the device, the passage being formed within the tube by a co-axially-fitted tubular insert 22.  The device shown comprises a ball-point pen having a two-part barrel 1, 2 joined by screw-threads 3, a tip portion 9 pressed into the part 1, and a cartridge or reservoir tube 11 pressed on to a shoulder of the tip 9 and extending towards the end 5 of the part 2.  The tip 9 houses a ball 10 in a seating having a conical base provided with depressions to allow ink to flow around the ball.  The diameter of the reservoir tube 11 is preferably 4.5 mm.  An insert comprising a sleeve 22 is thrust into the end of the tube 11.  The internal diameter of this sleeve is of capillary size preferably 2.5 mm., and of such a length that the volume of the passage in the sleeve is about 10 per cent. of that of the tube 11, whereby expansion of air inside the tube 11, due to normal increases of temperature, will not force the ink beyond the rear end of the sleeve 22.  The sleeve is preferably formed of plastic or other flexible and resilient material, and has a flared rear end 25.  A cap 33 having an air inlet 34 therein closes the end of the tube 11.  The tip portion 9 may be formed of two parts, an extreme metal part housing the ball, and the rest of plastic material.
Patent GB-869987-A (GB)
Title: Improved window frame made of wood
IPC: E06B3/44
Filed: 1958-04-23
Abstract: 869,987. Windows. JENSEN, M. K. April 23, 1958, No. 12851/58. Class 20(3) A wooden window frame unit having a fixed pane 15 and a vertically sliding sash 35 is formed from identical side members and head member 11 and a sill member 14 which is similar to the side and head members except that the latter have a rabbet 38 to receive the fixed pane 15 whereas the sill has a sloping surface 44. Each of the frame members has a rabbet 39 for the sliding sash 35, which is retained in position by wooden stops 26, and a pair of grooves 40, 41 to receive the edges of outer and inner wall panels 22, 27, A member 28 is rabbeted to receive the lower edge of pane 15 and provided with metal weatherstripping 36 fitting within a groove 37. A screen having a metal frame 32 may engage the rabbet 38 of the side members and a wooden stop 46 screwed to the member 28.
Patent GB-188286-A (GB)
Title: Improvements in wheels for road vehicles
IPC: B60B9/22
Filed: 1922-05-08
Abstract: 188,286. Wilbur, F. H. May 8, 1922. Spring wheels. - A pneumatic tube 7 fitted within a two-part casing 6 is mounted between the wheel-rim 4 and an outer rim 5 carrying a rubber tread 9. The outerbeaded edges 12 of the parts 6 are clamped between the flanges 13 and a rib 14 on the rim 5 by split rings 8.
Patent GB-597879-A (GB)
Title: Improvements in or relating to blasting cartridges
IPC: C06B23/00
Filed: 1944-07-07
Abstract: 597,879. Explosive compositions. DU PONT DE NEMOURS & CO., E. I., and WINNING, C. H. July 7, 1944, No. 13001. [Class 9 (ii)] An explosive composition for blasting cartridges comprising liquid explosive nitric ester and nitrocellulose, is stiffened by the addition of an oxide, hydroxide or normal or basic salt of lead, iron, aluminium, copper, manganese, bismuth or cobalt. Specification 584,547 is referred to.
Patent GB-240205-A (GB)
Title: Improvements in electric signalling systems for indicating and/or recording distant movements
IPC: H02K24/00
Filed: 1924-05-28
Abstract: 240,205. Kent, Ltd., G., and Avery, A. H. May 28, 1924. Tell-tale apparatus. -In apparatus for indicating and/or recording distant movements, which may be derived from the differences in the level of a liquid or the pressure of a gas, the transmitter comprises a coil or coils rotatably mounted in an alternating magnetic. field. The electromotive force induced varies with the position of the coil and produces an indication of the position on an indicating or recording instrument. As shown, core 4 carrying two coils 5 is adapted to be rotated through 90‹ between the poles of a laminated field system 2 which is excited by alternating current. The coils 5 are connected to pins 13, 14 which are mounted on an insulating block 15, and dip into mercury cups 16 connected to the line wires. In one extreme position of the rotor the pin 14, which is pivoted at 17, is swung clear of its mercury cup in order to break the signalling circuit. The rotor is supported at the bottom by a thrust bearing 8 and at the top by a pivot bearing 10, and is operated by the apparatus whose movements it is desired to indicate, through a bevel gear 20.
Patent GB-126220-A (GB)
Title: Improvements in Method of Producing Moving Pictures in Color.
Inventor: SHAW JOSEPH
IPC: G03B33/08
Filed: 1918-08-14
Abstract: 126,220. Shaw, J. Aug. 14, 1918. Kinematograph apparatus.-In taking kinematograph pictures for projection in colours, colour screens are used in which each alternate colour is red or of a red shade. Each group of six negatives, Fig. 1, is taken through a synchronized colour screen S, alternate pictures being taken through a red screen and the remaining ones through green, yellow, and blue. The film consisting of such groups may be projected through a screen S' of two colours reel and green affecting alternate pictures as indicated by the arrows or a screen S<2>, Fig. 2, having red and orange-red filters R<1>, R<2>, and yellow-green and blue-green G<1>, G<2> may be used, alternate groups of six pictures being affected by the filters as shown by the arrow lines ; The gelatine of the film may be tinted red and green alternately or with the shades of the screen S<2> in succession and projected without ,screens, Fig. 3. A yellow filter may be substituted for the blue or vice versa,.
Patent GB-1139661-A (GB)
Title: Sound source
IPC: G01V1/155
Filed: 1967-03-21
Abstract: 1,139,661. Vibratory mechanism. GULF GENERAL ATOMIC Inc. 21 March, 1967 [1 April, 1966], No. 13214/67. Heading F2X. [Also in Division H4] A device for generating sound waves in earth or water comprises a radiating member, e.g. a resiliently-mounted plate 17, an oscillatory system coupled thereto and comprising a spring member and an inertia member, and an hydraulic power source which is periodically actuated to cause periodic movement of the radiating member. As shown, the plate 17 is connected to a cylinder 20 in which is a piston 21 connected to the spring member 18 which carries weights 19. Pressure is applied to and removed from the space 23 to below the piston to cause the members 17, 18, 19 to oscillate at a resonant frequency, which can be varied by changing the weights 19. Member 18 as a straight bar but may be replaced by a disc with annular weights (Fig. 4, not shown), or by a fluid "spring" consisting of a chamber (92) attached to piston 21 and containing a fluid in which is centrally supported by light springs a mass (94), the spaces above and below which are selectively connected to several hydraulic accumulators (100) (Fig. 5, not shown). In a further arrangement, (Fig. 6, not shown), the piston 21 is connected to a light piston (106) in a massive cylinder (107), the spaces above and below piston (106) being pressurized by compressed gas.
Patent GB-132766-A (GB)
IPC: F41F3/10
Abstract: 132,766. Schneider et Cie. April 1, 1919, [Convention date]. Addition to 131,960. Launching torpedoes.-Relates to apparatus for opening the front door of a torpedo tube, releasing the torpedo, and actuating the launching-valve or other device, all automatically in succession by one single hand operation as described in the parent Specification, and consists in the addition of means for opening the " conservation " valve of the torpedo automatically during the above sequence of operations. The conservation valve is a valve S, Fig. 5, interposed between the compressed air reservoir and the usual launching- valve which is tripped open to start the engines when the torpedo begins to move forward in the launching-tube. As shown, a box key G is provided to operate the valve S and is adapted to be rotated by gear-wheels J, E from a sleeve A on a rod F, Fig. 1, and to be raised and lowered bv a lever l<1> and a cam b<1> on another sleeve B. The rod F is the piston-rod described in the parent Specification, which, by a sliding movement in the direction of the arrow X, causes the automatic sequence of operations. This sliding movement is converted into a rotary movement of the sleeve A to open the conservation valve S, by means of rollers a<1>, a<2> on the rod moving along curved grooves a<6> in the sleeve. When this is completed, the cam b<1>, which is rotated by the sleeve A by a feather a<7> and is simultaneously slid towards the lever l<1> by a fixed screw-threaded nut C, swings the lever and liits the box-key G out of the torpedo tube T, just before the launching- valve is opened.
Patent GB-1115884-A (GB)
Title: Method for depositing on a substrate coherent solid layers
Inventor: STERLING HENLEY FRANK
IPC: C23C16/507
Filed: 1966-03-25
Abstract: A substrate, which may be continuously moved, is coated with at least two layers by the chemical reaction of a plasma the constituents of which are changed during deposition. Examples are (a) tetrafluoroethylene changing to silicon tetrafluoride and then nickel carbonyl, and (b) ethylene, silane and molybdenum carbonyl, to give (a) Ni on p.t.f.e., and (b) polythene on a polythene cable, followed by silicon carbide, molybdenum silicide, and finally Mo.ALSO:A substrate, which may be continuously moved, is coated with at least two layer by the chemical reaction of a plasma the constituents of which are changed during deposition.  Examples are (a) tetrafluoroethylene changing to silicon tetrafluoride and then nickel carbonyl and (b) ethylene, silane and molybdenum carbonyl, to give (a) Ni on p.t.f.e., and (b) polythene on a polythene cable, followed by silicon carbide, molybdenum silicide and finally Mo. missing page 184ALSO:A substrate, which may be continuously moved, is coated with at least two layers by the chemical reaction of a plasma the constituents of which are changed during deposition.  Examples are (a) tetrafluoroethylene changing to silicon tetrafluoride and then nickel carbonyl and (b) ethylene, silane and molybdenum carbonyl, to give (a) Ni on p.t.f.e., and (b) polythene on a polythene cable, followed by silicon carbide, molybdenum silicide, and finally Mo.
Patent GB-709602-A (GB)
Title: Electric heating device with adjustable heating period
Inventor: JEPSON IVAR
IPC: A47J29/02
Filed: 1952-05-26
Abstract: 709,602. Measures of capacity. SUNBEAM CORPORATION. May 26, 1952, No. 13314/52. Class 106(5) [Also in Group VI] A measuring vessel 44, which serves also as a handle for a cover 41 for an electric heating vessel (see Group VI), comprises a calibrated cylinder which is preferably of a transparent plastic material, the cylinder 44 enclosing a piston 56 mounted on a screw-threaded spindle 53 which is supported at one end in a spider 51 and at the other carries a knob 54, rotation of which serves to vary the position of the piston 56 on the spindle 53 and hence to predetermine the working volume of the cylinder 44. In use a predetermined volume of water is poured out of the cylinder 44 into the heating vessel to predetermine the heating period, which is terminated automatically when the water is totally evaporated.
Patent GB-1104172-A (GB)
Title: Glow discharge polymerization process
Inventor: BRIGHT KEITH
IPC: C08G65/02
Filed: 1965-03-30
Abstract: Polymers are produced by polymerizing in the presence of a glow discharge a compound which is at the time of polymerization a liquid or in the form of a solution.  The compound may be allyl or nonyl methacrylate or glycol dimethacrylate, a saturated or unsaturated aliphatic hydrocarbon, styrene, divinyl benzene, tetralin, decalin, 2-(2-butoxyethoxy)ethanol, styrene oxide, 2,6-xylenol, a - or b -pinene and/or a polyester derived from maleic and phthalic anhydrides, adipic acid, propylene and 1,3-butylene glycols and styrene.  The liquid may be fed in the form of a spray, of droplet size less than 50 m , into a polymerization zone at a pressure of up to 20 mm. Hg and in the presence of an ionizable non-polymerizable gas, and may be polymerized so as to form a coating on a substrate which may be the electrodes.  An apparatus for carrying out the polymerization is illustrated (not shown).
Patent GB-717946-A (GB)
Title: Process for surface treatment of concrete to make it highly resistant to the passage of fluids through it
IPC: C04B26/28
Filed: 1952-05-27
Abstract: Concrete is made fluid resistant by applying to a formed concrete surface an aqueous solution of one or more alginates which by reaction with the water-soluble calcium compounds of the concrete forms a water-insoluble film on the said surface; the solution may have natural or synthetic rubber latex mixed therewith.  In a modification, the surface is treated with an aqueous solution of a salt of a metal which can form an insoluble alginate, e.g. calcium, chromium or zinc.ALSO:Concrete is made fluid resistant by applying to a formed concrete surface an aqueous solution of one or more alginates which by reaction with the water soluble calcium compounds of the concrete forms a water insoluble film on the said surface.  In a modification, the surface is treated with an aqueous solution of a salt of a metal which can form an insoluble alginate, e.g. calcium, chromium or zinc.  A covering layer of concrete may be applied to the treated surface.