baber/WOPTO huggingface dataset:
Patent GB-953101-A (GB)
Title: Novel naphthalene derivatives and a process for the manufacture thereof
IPC: C07D275/04
Filed: 1962-09-26
Abstract: The invention comprises compounds of the general formula: <FORM:0953101/C2/1> in which R1 and R2 represent hydrogen, halogen, nitro, alkyl, or acyl groups.  The compounds are made by reacting an alkali metal derivative of a compound of the formula: <FORM:0953101/C2/2> with trichloromethyl-sulphur chloride in the presence of an acid binding agent and preferably also in the presence of an organic solvent.  The alkali metal derivative above, may be obtained by dissolving the compound in an aqueous solution containing a stoichiometrically equiavalent quantity of alkali metal hydroxide. The products are used as fungicides.ALSO:Fungicidal compositions contain compounds of the general formula <FORM:0953101/A5-A6/1> in which R1 and R2 represent hydrogen, halogen, nitro, alkyl, or acyl groups, in association with a compatible carrier.  The compounds may be dissolved in a solvent, emulsified, brought into a dispersed state or used as dusts.
Patent GB-837993-A (GB)
Title: A process for the preparation of levans
IPC: C12P19/18
Filed: 1957-11-22
Abstract: Levans of predetermined molecular weight are prepared by the interaction of levan-forming micro-organisms or cell-free levan-forming enzymes formed by such micro-organisms, and cane sugar, in an aqueous medium, characterized in that said interaction is carried out in the presence of a levan sucrase-adsorbing agent and in that the medium contains ions for regulating the degree of adsorption of levan sucrase by the adsorbing agents.  The preferred micro-organism is Bacillus-subtilis.  The adsorbing agent may be calcium phosphate gel, bentonite, activated carbon, asbestos, cellulose powder, kieselguhr, silica gel, aluminium hydroxide, starch, soya powder, magnesium phosphate, lanthanum ribonucleate or the denatured proteins which separate on heating corn steep water. Suitable ions are alkali metal, chloride, sulphate, orthophosphate, acetate, lactate or propionate ions.  The molecular weight of the levans produced depends on the degree of adsorption of levan sucrase which can be controlled by varying the amount of adsorbent materials and/or the concentration of ions used.  Levans intended for use as blood substitutes may be purified by colloido-chemical processes and then dissolved in blood-isotonic solutions.ALSO:A fermentation process for the preparation of levans of predetermined molecular weight by the interaction of levan-forming micro-organisms and cane sugar in an aqueous medium is characterized in that a levan sucrose-adsorbing agent is present and the medium contains ions for regulating the degree of adsorption of levan sucrose by the adsorbing agent.  The preferred micro-organism is Bacillus subtilis.  The adsorbing agent may be calcium phosphate gel, bentonite, activated carbon, asbestos, cellulose powder, kieselguhr, silica gel, aluminium hydroxide, starch, soya powder, magnesium phosphate, lanthanum ribonucleate or the denatured proteins which separate on heating corn steep water.  Suitable ions are alkali metal, chloride, sulphate, orthophosphate, acetate, lactate or propionate ions.  Levans for use as blood substitutes, having a molecular weight of about 65,000, prepared by this process may be purified by known colloido-chemical processes and then dissolved in blood-isotonic solutions, e.g. a 6% solution of the levan in a tyrode solution or an 0.9% sodium chloride solution.  Levans of low molecular weight of levans of high molecular weight also produced by the above process may be used as thickening agents and pharmaceutical carriers in tablets.
Patent GB-894747-A (GB)
Title: Retaining means for helmets and face masks
Inventor: ROTH HERMAN PAUL
IPC: A62B18/08
Filed: 1958-11-13
Abstract: 894,747. Respiratory masks. UNITED TANKS Inc. Nov. 13, 1958, No. 36561/58. Class 81 (2). [Also in Group VII] A retaining-means for a helmet and a face mask 10 comprises a rigid saddle member 15 carried by the face mask, an upper strap 23 and a pair of lower straps 21 extending from the saddle member to the helmet, a latch bolt 28 at the extremity of each strap and a keeper housing 30 for each latch bolt secured to the sides of the helmet at spaced fixed points thereon and dual latch levers 37 pivotally mounted in each housing to engage in notches 29 in the latch bolts 28. A cross-strap 26 extends under the chin of the wearer and is joined to the straps 21. In a modification shown in Fig. 2 the ends of the straps 21, 23 are joined to a common latch bolt 28a, the straps 21 being provided with adjustment buckles 41. The saddle member 15 may be integral with the face mask 10 or it may be removable therefrom.
Patent GB-873044-A (GB)
Title: Improvements relating to goggles
IPC: A61F9/06
Filed: 1959-10-28
Abstract: 873,044. Goggles. STERNE, W. F., and BRIGHT, R. A. Oct. 28, 1959, No. 36653/59. Class 97(1) A pair of goggles comprises an oblong lens member 10 having a central notch 21 to accommodate the wearer's nose, an open-ended frame member 11 extending about the lens member and terminating adjacent the lower ends of said notch, and a supplemental frame member 20, preferably of a softer material than the other frame member, to follow the contour of the notch; the two frame members form a continuous rim about the lens member and their rear edges are contoured to fit the wearer's face. The two frame members may be cemented together or joined in the way shown in Fig. 4. In this latter embodiment the lens member is provided with two notches 12 (only one shown) which engage notches 25 in the supplemental frame member 25 and hook-like recesses 17, 16 in the open-ended frame member. U.S.A. Specification 2,770,807 is referred to.
Patent GB-345355-A (GB)
Title: Improvements in or relating to direction indicators for motor vehicles
IPC: B60Q1/38
Filed: 1930-08-19
Abstract: 345,355. Road-traffic signals on vehicles. JOHNSTON, W. H. H., Moely-garnedd, Bala, Merionethshire, and JOHNSTON, J. S., 34, Princess Street, Manchester. Aug. 19, 1930, No. 36730/29. [Class 118 (ii).] Front and rear directionsignalling arrows a<1>, a2, o on road-vehicles are selectively and intermittently illuminated by lamps c<1>, c<2> controlled by a hand switch f and by a make- and-break switch i driven from a moving part of the vehicle or engine, such as the magneto shaft, or from a separate electric or clockwork motor. The rotating disc i carries a contact il which intermittently connects two movable contacts k<1>, k<2> which are only forced into the operative position when an electromagnet n is energized. Lenses c are provided to emit lateral beams of light.
Patent GB-1106704-A (GB)
Title: Improvements in and relating to two-drum winders
Inventor: BROWNBILL RICHARD JAMES
IPC: B65H18/20
Filed: 1964-09-09
Abstract: 1,106,704. Winding webs. WALMSLEYS (WIGAN) Ltd., and MASSON, SCOTT & CO. Ltd. 19 Aug., 1965 [9 Sept., 1964], No. 36844/64. Heading B6B. In a two-drum web winder, the pneumatic, hydraulic or hydro-pneumatic carriage rams 10 and 12, Fig. 2 (not shown) have interchangeable adaptor plates 20 which are engageable in the ends of either a reel bar or a row of cores, dependent on whether the winder is to be used for reel bar winding or shaftless winding: The carriage rams are such that the adaptor plates. are differentially loaded; whereby themore heavily loaded plate always moves into the same projected position, whilst the more lightly loaded plate adopts a position determined by the length of the reel bar or the row of cores.
Patent GB-1496322-A (GB)
Title: Resonance thermometer
IPC: G01K7/38
Filed: 1976-09-07
Abstract: 1496322 Measuring temperature electrically YOKOGAWA ELECTRIC WORKS Ltd 7 Sept 1976 [17 Sept 1975] 36987/76 Heading G1N The nuclear resonance absorption frequency of a quantity of KClO 3  is used as a measure of its temperature. The material X, Fig. 1, is located in a receptacle K together with a coil L forming with capacitors C1, C2, C3 and variable capacity diodes Dl, D2 the resonance circuit of an oscillator MO. A unit FG produces a ramp voltage which is fed across diode D2 to cause oscillator MO to generate a sweep frequency. When this frequency is equal to the resonance absorption frequency of material X, the Q of the resonance circuit is reduced and the amplitude of the oscillator output falls, as shown in Fig. 2a. The signal from oscillator MO is modulated by LF oscillator LO whose output is also fed to synchronous demodulator LA1, LA2, and also via frequency doubler FD to demodulator LA3. The demodulators are connected to controller COT. When the output from demodulator LA1, which has a short time constant, rises to Ec, Fig. 2b, at frequency fc, indicating that coincidence between the sweep frequency and the resonance absorption frequency has just been passed, controller COT stops the ramp voltage output from unit FG, checks the output voltage of LA3 to ensure that Ec is not due to noise, and feeds a step voltage via resistor r3 to diode D2 to bring the oscillator frequency down to f1. Controller COT notes the amplitude El of the output from LA2, then increases the frequency of oscillator MO until its output amplitude is again El, and maintains the frequency at this value fo, which is measured by counter CU and indicated at IND as the temperature of the material X.
Patent GB-336157-A (GB)
Title: Improvements in systems for reproduction of sound, and selenium cell for use in such systems
IPC: H01L31/08
Filed: 1929-12-04
Abstract: 336,157. British Acoustic Films, Ltd., (Assignees of Poulsen, A., and Petersen, A. C. G.). Dec. 5, 1928, [Convention date]. Light-sensitive cells. - Relates to apparatus for reproducing sound from a film record, in which a selenium cell is used. According to the invention, a slit is dispensed with by constructing and arranging the selenium cell in such a manner that the illuminated surface thereof is disposed in a plane forming an angle with the plane of the sound-film, so that the extent, in the direction of motion of the film, of the active portion of the light-sensitive coating, is substantially smaller than the actual width of the said portion. Fig. 1 shows in cross-section a selenium cell constructed according to the invention. It consists of two metal strips a with an intermediate insulating layer c, the end d of this composite block being formed obliquely, as shown. A layer of selenium e extends, across the sloping end d. In use, the cell is connected in the reproducing circuit, Fig. 3, by metal springs m or the like, and is arranged so that the surface d is oblique relatively to the plane of the film f, with the selenium-covered edge of the intermediate Layer c parallel to the width of the film. In a modification, the tight-sensitive surface of the cell is at right angles to the two metal sections a, and the cell is pivoted so that the inclination of the sensitive surface to the plane of the film can be varied as required. The Specification, as open to inspection under Sect. 91 (3) (a), states also, that the surface d of the cell instead of being plane may be convex or concave. This subject-matter does not appear in the Specification as accepted.
Patent GB-980671-A (GB)
Title: Iron alloy
IPC: C22C38/04
Filed: 1963-09-23
Abstract: An iron based alloy consists of: .Mn.13.0 -18.0% .Ni.7.0 -11.0% .C.0.95- 1.1% .Si.up to 1.0% the balance being iron.  The alloy may be heat treated by heating to 1100  DEG C. and quenching in water.
Patent GB-800420-A (GB)
Title: Process for the manufacture of fuel elements for nuclear reactors
IPC: G21C3/20
Filed: 1956-12-06
Abstract: 800,420. Casting composite nuclear-reactor fuel elements, DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER. Dec. 6, 1956 [Dec. 6, 1955], No. 37373/56. Class 83 (1). [Also in Group XL (a)] A fuel-element for a nuclear rector comprising an element of the fissionable material, e.g. uranium, and a metal casing tube, is made by placing the element of fissionable material 11 into a casing tube 12 which is longer than the element and closed at one end 13, closing the other end of the tube except for a narrow passage 16, evacuating the casing tube, forcing magnesium or an alloy with a high magnesium content, which has been melted in a protective gas atmosphere, into said tube by pressure of inert gas to fill the space between the element 11 and the inside wall of the tube 12, and thereafter completely sealing off the casing tube. The narrow passage 16 holds back oxide or nitride skins forming on the molten magnesium. The steel casing is cleaned internally, as by electrolytic degreasing, etched with nitric acid, rinsed, and dried. The uranimn rod 11 is anodically polished in an alcoholic phosphoric-acid bath containing glycerine, etched in nitric acid and dried. The casing may be of zirconium, beryllium or alloys thereof, or aluminium alloy.
Patent GB-523098-A (GB)
Title: Improvements in rotary-wing aircraft
IPC: B64C27/54
Filed: 1938-12-22
Abstract: 523,098. Rotary wing aircraft. HENSCHEL FLUGZEUG-WERKE AKT.-GES. Dec. 22, 1938, No. 37376. Convention date, Dec. 23, 1937. [Class 4] An aircraft has a lifting screw wherein each blade is free to swivel about an axis inclined to a plane at right angles to the screw axis at an angle which is variable at will, and wherein the main longitudinal axis of the blade intersects the swivel axis at a point between the centre of gravity of the blade and the screw axis, the distance between the centre of gravity of the blade and the swivel axis being .2 to 8 times the smallest radius of inertia of the blade. The swivel axis is preferably coincident with an arm B passing through a sleeve pivoted about an axis E-E, Fig. 2, and provided with a ball end G which is engaged by a block on a sleeve 7 movable along the spindle M of the rotor hub by a lever J to vary the inclination of the arm. The main axis H-H, passing through the centres of section of the blade, is rearwardly inclined, with respect to the direction of rotation, to the arm B and the distance a of the centre of gravity of the blade from the swivel axis lies within the limits stated. The spindle M is mounted in a block mounted on trunnions Q having an axis coincident with the axis of a driving-shaft W, the lever J being pivoted on an arm L carried by the trunnions to enable the rotor to be tilted laterally. A machine is described having two such rotors arranged on a fore and aft line with their bodies oppositely rotating in overlapping or interpenetrating relation. In this case elevational control is achieved by opposite movements of the sleeves F on the two rotors.
Patent GB-366210-A (GB)
Title: Improvements relating to field or marching compasses
IPC: G01C17/00
Filed: 1930-12-12
Abstract: 366,210. Magnetic compasses. CHRISTIE, R. G., 23, West Park, Eltham, London. Dec. 12, 1930, No. 37519. [Class 97 (ii).] To allow for magnetic variation in prismatic marching compasses the needle and card with or without the compass bowl can be swung about a vertical pivot in the casing of the instrument and clamped in the adjusted position. In the form shown, the compass bowl B is turned on the pivot stand C in the casing A until the magnetic variation is indicated by the scale E on the bottom of the bowl against a fiduciary mark on the casing. A thumb-nut F threaded on a screw fixed to the bowl and working in a slot G in the casing enables the bowl to be clamped in the set position. The casing A is provided with a reading prism D hinged at d and a sighting vane K. For night marching an adjustable ring H carrying a luminous patch is provided and the card carries a luminous mark. Luminous pointers may also be provided on the vane K.
Patent GB-1120209-A (GB)
Title: Improvements in or relating to rotary fluid flow meters
Inventor: WEMYSS WILLIAM ALEXANDER
IPC: G01F1/11
Filed: 1965-09-02
Abstract: 1,120,209. Measuring fluid flow electrically. B. RHODES & SON Ltd. Aug. 17, 1966 [Sept. 2, 1965], No. 37556/65. Heading G1N. [Also in Division F1] A rotary flow meter comprises a propeller head having a plurality of blades positioned in the flow pipe and driven by the flow of fluid on a shaft which projects outside the flow path and is inclined to or at right angles to the direction of fluid flow (see Division F1), a magnet mounted at the upper end of the shaft co-operating with reed switch 115, (Fig. 6) which feeds pulses to a monostable multivibrator 121, 122 whose output frequency is thus proportional to the rate of flow of the fluid and is fed through an averaging circuit to e. g. a D'Arsonval moving coil meter 127. The multivibrator output pulses may be counted to provide an indication of the total volume of fluid passing through the meter.
Patent GB-322657-A (GB)
Title: Improvements in shock absorbing and springing mechanisms with particular application to aircraft requirements
IPC: B64C25/64
Filed: 1928-12-20
Abstract: 322,657. Dowty, G. H. Dec. 20, 1928. Shock-absorbers. applications & of.-In a shock-absorbing strut the load is carried by two or more independent resilient units which are arranged vertically one above the other within a streamline housing and are interconnected to permit of simultaneous deflection. An oil or fluid dash-pot may be incorporated to work simultaneously with, or independently of, the resilient springing or alternatively an energy-dissipating device, such as relatively movable frictional brake surfaces, mav be included. The resilient units may consist of one or more springs coupled together in series or in parallel. Fig. 1 shows an application to an aeroplane undercarriage in which two packs of compression rubbers 4, 10, shaped as shown in Fig. 3, are threaded over a pair of telescoping tubes 21 and 7 and are located between fixed and movable buffer seats, of which the fixed pair 11, 5 are connected to an outer streamline tube 1 and the movable pair 9, 6 are connected together by the tube 7. A second streamline tube 17 is arranged to slide over the tube 1 and contains an oil dashpot comprising inner and outer cylinders 14, 16 and a valve 15. Oil is inserted into cylinder 14 through an orifice 18. The sliding cylinder 16 carries a collar 19 arranged to contact with a stop 20 fixed to the lower end of a guide tube 12 after a predetermined amount of compression of the leg has taken place. The guide tube 12 is secured at its upper end to the sliding buffer seat 6. The action of the leg is such that the initial shock is absorbed by the oil dash-pot after which the two columns of springs are compressed simultaneously.
Patent GB-1010741-A (GB)
Title: Esters of thiocarbamic acid
Inventor: HARMAN MARION WESLEY
IPC: C07D307/14
Filed: 1960-11-02
Abstract: The invention comprises thiocarbamic acid esters of the general formula <FORM:1010741/C2/1> in which R2 and R3 are alkyl, cycloalkyl, alkoxy-alkyl, aryl, aryloxyalkyl, aralkyl, aralkoxyalkyl, cyanoalkyl, alkenyl, haloalkenyl, cycloalkenyl, furfuryl, or tetrahydrofurfuryl groups, or together represent a polymethylene group which may be interrupted by an oxygen or nitrogen atom, not more than one of R2 and R3 being a cycloalkyl, aryl, alkoxyalkyl, aralkyl, aralkoxy-alkyl, furfuryl or tetrahydrofurfuryl group, and R4 is a trihaloalkenyl group. R2 and R3 preferably have not more than 6 carbon atoms and R4 preferably has 3 or 4 carbon atoms.  The esters are prepared by heating an aqueous solution of an alkali metal salt of a thiocarbamic acid of formula <FORM:1010741/C2/2> with a halide R4X.  Alternatively, an alkyl thionocarbamate of formula <FORM:1010741/C2/3> is heated with a halide R4X.ALSO:A weed-killing composition comprises a thiocarbamic ester of the general formula:- <FORM:1010741/A5-A6/1> in which R2 and R3 are alkyl, cycloalkyl, alkoxyalkyl, aryl, aryloxyalkyl, aralkyl, aralkoxyalkyl, cyanoalkyl, alkenyl, haloalkenyl, cycloalkenyl, furfuryl or tetrahydrofurfuryl groups or together represent a polymethylene groups which may be interrupted by an oxygen or nitrogen atom, not more than one of R2 and R3 being a cycloalkyl, aryl, alkoxyalkyl, aralkyl, aralkoxyalkyl, furfuryl or tetrahydrofurfuryl group, and R4 is a trihaloalkenyl group, together with a finely divided inert solid or a liquid inert diluent.  The compounds may be used as sprays in organic solvents, or the solutions may be dispersed in water, preferably using an organic surface active agent.  Finely divided inert solids may be impregnated with either the organic solutions or aqueous dispersions.
Patent GB-332965-A (GB)
Title: Improvements in, or relating to, internal combustion engines
IPC: F01N13/12
Filed: 1929-10-19
Abstract: 332,965. Holbeach, R. A., and Whitehorn, A. C. Oct. 19, 1929. Multiple - way impellers.-A pparatus for silencing exhaust gases comprises a single disclike rotary member constituting a double impeller having a set of blades mounted on each face thereof, one set of blades acting upon the exhaust gases, and the other upon a cooling medium which may be air, or the cooling water of the engine. The cylinders 1, Fig. 1, of an outboard motor are connected by a hollow pillar 2 to the underwater structure 3 which supports the propeller 4 and the gear casing 5 containing bevel gears 9 through which the propeller is driven from a shaft 8. The pillar has an inner conduit 11 for the exhaust gases, and outer conduits 12, 13 for engine-cooling water. The double impeller mounted on the shaft 8 comprises a disc 14 with sets of blades 15, 16 on opposite faces thereof. The volute casing 7, Figs. 1, 2, has a transverse diaphragm 19 which, with' the disc 14, forms two chambers 17, 18 which communicate with each other through a number of apertures 20 in the disc. In operation, the upper blades 15 draw the exhaust gases into chamber 17, and simultaneously the lower blades 16 draw water through passage 22. Part of this water passes through the apertures 20 to mix with the exhaust; the remainder is forced through outlet 23 and conduit 12 to the cylinder jackets, to return through conduit 13 to chamber 17 whence it is expelled together with the exhaust through outlet 24, Fig. 2. The applications of a similar silencing and cooling device to two types of inboard motor are described in connection with Figs. 3 and 4 (not shown). Fig. 5 shows the application to a radial multi-cylinder aircraft engine. The rearwardly disposed extension 61 of the crankshaft of the engine 60 supports the double impeller 64 with its two sets of blades 65, 66 located in a volute casing 67. Exhaust outlets 68 communicate with the blades 65 by way of conduits 69. Cooling air enters at 70 and the mixed air and exhaust gases are discharged at 71. In a modification, the exhaust is discharged into an expansion chamber where it meets cold air before passing to the volute chamber and discharge outlet.