baber/WOPTO huggingface dataset:
Patent GB-346904-A (GB)
Title: Improvements relating to ventilators for railway carriages, omnibuses and other like vehicles
IPC: B61D27/00
Filed: 1930-02-17
Abstract: 346,904. Ventilators for vehicles &c. HARVEY, A., 109, Poplar Avenue, Edgbaston, and HARVEY, F., Brighton House, Warwick Road, Olton, both in Birmingham. Feb. 17, 1930, No. 5207. [Class 137.] In a ventilator for vehicles and like enclosures in which a cylindrical casing 5 arranged outside the vehicle is provided with a spigot member 5a cooperating with a valve member disposed inside the vehicle and in which an inner cylindrical member 6 is disposed within the cylindrical casing to form an annular chamber 7 communicating with a longitudinal passage through the inner cylindrical member, the communicating means comprises a tubular member 6a of greater depth at one side than the other so that the ventilator may be used for the induction of fresh air into, or the eduction of foul air from the enclosure according to the direction of motion. The outer casing 5 is formed with parts 5d of reduced diameter near its ends forming a mounting for the inner cylindrical member 6, and with a tubular lug or spigot 5a on one side intermediate its ends. That part of the casing adjacent the spigot forms a bearing face for the part 4 of the enclosure to which it is attached and has tapped holes 5c to receive bolts 10 passing through the part 4 from the valve means within the enclosure. Draining holes 5e and ribs 5f prevent water from reaching the inside of the enclosure, Communication between the annular chamber 7 and the inside of the cylindrical member 6 is effected by means of an aperture 6a having an inwardly projecting flange 6b of non-uniform depth. If air moves through the ventilator in the direction of the arrow then air will be drawn from the enclosure in known manner; if in the reverse direction the flange will act as a wind scoop to supply air to the enclosure. The valve means comprises a dish-like member 8 with apertures 8b in the cylindrical portion 8a, said apertures co-operating with apertures 9a in a surrounding sleeve 9 rotated by means of a knob 9b.
Patent GB-326634-A (GB)
Title: A combination toy
IPC: A63G9/16
Filed: 1929-09-27
Abstract: 326,634. Kenyon, J. Sept. 27, 1929. Easel stands. - An easel, which may be used as a child's swing, comprises two frames 1, 2, the former, which carries a blackboard in the usual manner, being fixed to, and the latter being hinged at its upper end to a member 3, the frames being spaced by latches 4 and catches 5.
Patent GB-508298-A (GB)
Title: Improvements in or relating to non-metallic airscrews and airscrew blades
IPC: B64C11/20
Filed: 1939-02-16
Abstract: 508,298. Screw propellers. HEINE, H. Feb. 16, 1939, No. 5227. [Class 114] Non-metallic air-screw blades which have a complete envelope of wire gauze embedded in a moisture proof adhesive, are provided with a metal sheathing at the leadings edge, which is secured to an intermediate metal support that is pinned to the blade itself. A blade a is provided with metal gauze f embedded in an adhesive g, and there is also at the leading edge a strip b of sheet metal which is pinned by pins d to the material of the blade. Outside that is a sheet metal cover e which is secured in position by soldering to the metal strip b whereby the heads of the pins dare covered and rendered moisture proof. A through rivet c may also be used for securing the base plate b. Instead of the intermediate support passing right round the leading edge, strips may be used, and in order to provide a faired surface, the strip is counter sunk. The whole sheathing is then covered with one or more coatings of synthetic resin or cellulose varnish. Where an improved wood is used for the blade proper, there is used veneers of an average thickness of 9 mm. which are glued together by synthetic resins under low pressure.
Patent GB-111968-A (GB)
Title: Improvements in Electric Current Interrupters.
Inventor: TROSDAHL KNUT
IPC: H01H71/14
Filed: 1917-04-13
Abstract: 111,968. Trosdahl, K. April 13, 1917. Mercury switches; thermal switches. - A current - limiter consists of a porcelain casing having three chambers 4, 5, 6 connected at the bottom by a channel 3 filled with mercury, a resistance wire 9 in the circuit to be controlled being placed in the central chamber. On excessive current, the expansion of the gas in this chamber forces the mercury away from the centre of the channel and breaks the continuity of the circuit normally closed by the mercury between the leads 3, 11. Oil 7 is placed on the mercury in the central chamber, but may be dispensed with if the chamber is filled with nitrogen. The volume of the central chamber is equal to the sum of the volumes of the two side chambers. An adjustable shunt is provided for the resistance wire.
Patent GB-280763-A (GB)
Title: A process for simultaneously producing a gas of the nature of water gas, phosphoric acid, and an aluminium silicate slag having the same composition as a cement
IPC: C01B25/20
Filed: 1927-02-24
Abstract: 280,763. Urbain, E. Jan. 20, 1927, [Convention date]. Materials for making gas.-In the process of preparing phosphorus by heating together calcium triphosphate, silica and carbonaceous substances, a portion of the silica is replaced by alumina or clay to obtain a fusible slag having the composition of an alumina cement. The vapours evolved consisting of phosphorus vapours and carbon monoxide are mixed with water vapour and a halogen acid and passed over a porous amorphous carbonaceous material as described in Specification 278,578, [Class 1 (ii), Inorganic compounds, other than &c.], and yield phosphoric acid and a mixture of hydrogen and carbon monoxide having the composition of water gas.
Patent GB-127316-A (GB)
Title: Improvements in or relating to Searchlight and other Mirrors.
Inventor: BARNES ALBERT MOORE
IPC: C03C17/10
Filed: 1917-04-14
Abstract: 127,316. Barnes, A. M. April 14, 1917. Drawings to Specification. Reflectors.-Consists in silvering or gilding and applying a protective backing to glass mirrors, especially searchlight mirrors, by first chemically depositing silver or gold by means of a jet in which the reacting solutions are brought together on the surface to be coated, then electrolytically depositing copper or other metal of good thermal conductivity and finally applying a thin film of lead, or other malleable chemically resistant metal, either electrolytically or by a metal spray.
Patent GB-933129-A (GB)
Title: Controlling by-product alkyl chloride
IPC: C08F6/02
Filed: 1962-02-13
Abstract: In a process for polymerizing an a -olefinic feed material in the presence of a stereospecific polymerization catalyst and a diluent to form a slurry including catalyst residues containing metal chlorides, polymerized olefines, unpolymerized olefines and diluent, wherein the slurry is contacted with a C1 to C8 alkanol to stop the polymerizing action, the slurry-alkanol mixture is separated into a substantially solid polymerized olefine fraction and a fluid filtrate fraction, and the filtrate fraction is fractionated to separate liquid and gaseous constituents thereof and the pH of the filtrate fraction is maintained between 4,0 and 9,0 so that the reaction between said metal chloride catalyst residue and the said alkanol to form an alkyl chloride is minimized.  The pH may be maintained between 4,0 and 9,0 by using a strong base such as sodium hydroxide, sodium methylate, calcium hydroxide, sodium bicarbonate or sodium carbonate.  In the drawing, the monomer, e.g. propylene, and the catalyst, e.g. TiCl3+Al(C2H5)3, are charged to the polymerization zone 5 and the reacted slurry from zone 5 is then charged to chelation zone 9A to which HCl is also charged.  A C1 to C8 alkanol, e.g. CH3OH, is added to zone 9A <FORM:0933129/IV(a)/1> through line 9C to terminate the polymerization reaction and the slurry is then passed to precipitating zone 9 where further CH3OH is added through line 15.  A major part of the liquid and solid products are charged from zone 9 to filter zone 17, the gaseous product from zone 9 being removed through line 19.  In zone 17 the liquid-solid mixture is separated, a diluent, e.g. xylene being added through line 25, and the solid polymer containing fraction is removed through line 21 and after reslurrying, filtering and drying it is collected, while the liquid fraction from zone 17 is passed to receiver 24 where the pH is maintained between 4 and 9 by adding a strong base from zone 40, and then the liquid filtrate fraction is pumped into fractionation zone 43 where the xylene and alkanol constituents are separated from each other and the normally gaseous constituents of the filtrate.  The xylene fraction is removed through line 45 and may be recyled to catalyst slurry accumulator p  6.  The C1 to C8 alkanol constituents, in this case CH3OH, are removed through line 49 and charged partly to precipitator 9 and partly to filtering zone 17.  A control signal indicative of the pH of the filtrate fraction being fractionated is employed to vary the flow rate of the strong base to maintain the pH of the filtrate between 4 and 9.  Specification 810,023 is referred to.
Patent GB-950698-A (GB)
Title: New dyes containing dihalopyridazone groups
Inventor: TARTTER ARNOLD
IPC: C09B62/12
Filed: 1962-02-13
Abstract: The compound of the formula: <FORM:0950698/C2/1> is obtained by reacting 1-(21-aminoethyl)-4, 5-dichloropyridazone -(6)- hydrochloride with m-nitrobenzene-sulphonic acid chloride in presence of aqueous sodium carbonate. The corresponding amine is obtained by reducing the nitro group in the above compound with iron powder acid aqueous acetic acid.ALSO:The invention comprises dyes of the azo, anthraquinone and phtholocyanine series which contain at least once in the molecule the radical of the formula <FORM:0950698/C3/1> in which D denotes a -SO2- or -CO- group, R denotes a hydrogen atom, an alkyl radical having 1 to 6 carbon atoms, a cycloalkyl radical, an aralkyl radical or an aryl radical, A denotes an alkylene radical with 2 to 6 carbon atoms in the chain, X denotes a chlorine or bromine atom and Y denotes a chlorine or bromine atom. Such dyes are prepared by reacting an acid halide of an appropriate dye or dye precursor with (a) an amine of the general formula <FORM:0950698/C3/2> or (b) with a hydrazone compound of the general formula <FORM:0950698/C3/3> and cyclizing the hydrazone derivative obtained by heating to a dihalopyridazone compound or (c) by reacting an appropriate dye or dye precursor which contains at least once the group of the general formula <FORM:0950698/C3/4> with mucohalic acid and the hydrazone formed as intermediate is cyclized in the reaction mixture or after isolation to form the dihalopyridazone derivative and in each process, (a), (b) and (c), when a dye precursor has been employed as starting material the product is converted to a dye.  Of particular interest are dyes of the formulae <FORM:0950698/C3/5> where E denotes a phenylene, tolylene or diphenylene radical; <FORM:0950698/C3/6> where Q represents a sulphodiphenylene or a sulphonaphthylene radical; <FORM:0950698/C3/7> where Pc denotes the radical of copper phthalocyanine, a chlorocopper phthalocyanine with 1-4 chlorine atoms, a phenyl copper phthalocyanine with 1-4 phenyl radicals or nickel phthalocyanine, I denotes a phenylene radical, optionally substituted, D denotes a -SO2- or -CO- group, m denotes 1 or 2, p 1-4, q 1-3 and the sum of p+q 3-6; <FORM:0950698/C3/8> where L denotes the radical of a diazo component of the benzene or naphthalene series, M denotes the radical of a coupling component of the benzene, naphthalene or pyrazolone series D denotes a -SO2- or -CO- group, the remainder of the radicals in the last four formulae having the meanings given above. The copper, chromium or cobalt complexes of the o,o1-dihydroxyazodyes are also of interest. Examples are furnished.  The dyes are suitable for dyeing and printing such materials as wool, silk, synthetic polyamides, leather and natural or regenerated cellulose.
Patent GB-689527-A (GB)
Title: Improvements in or relating to corpuscular ray apparatus operating with magnetic lenses
IPC: H01J37/15
Filed: 1951-03-06
Abstract: 689,527. Discharge apparatus. SIEMENS & HALSE AKT.-GES. March 6, 1951 [June 1, 1950], No. 5458151. Class 39(i). A corpuscular ray apparatus, such as an electron microscope, operating with magnetic lenses has each lens in which regulation of refractive. power is necessary during operation (for example the objective and/or the lens for regulating the magnification) constructed as a double lens system, either without image rotation or with constant image rotation; the lenses may thus be adjusted without altering the position of the final image on the fluorescent screen. In Fig. 3 the objective comprises the two lens gaps 1 and 2 which are excited by a bar magnet 38 through the tubular parts 7 and 15 which are of magnetic material; a regulating element 18 is provided for the lens gap 2 which enables the refractive power of the lens to be altered without altering the integral of the magnetic flux along the path of the rays through the two lens gaps 1 and 2. A similar arrangement is provided for the projection lens comprising the lens gaps 3 and 4; preferably the refractive power of the lens gap 4 is greater, but not substantially greater, than that of the lens gap 3, and the lens gap 4 is preferably so designed as to be magnetically saturated for all positions of the regulator 20. A further double lens comprising the lens gaps 31, 32 may be provided to adapt the whole system to variable ray potentials or to increase the regulating range for the magnification. In a modification, Fig. 2a (not shown), this lens is omitted and both the objective and the projection lens systems are excited by the same bar magnet. In a further modification, Fig. 4, the objective comprises the lens gaps 41, 42 excited by a bar magnet 47 and regulated by a regulator 50; similar systems may be used for the other lenses, but the projection lens may alternatively be excited by two tubular magnets as shown by the chain lines in the figure.
Patent GB-472540-A (GB)
Title: Improvements in or relating to filters
IPC: B01D33/00
Filed: 1936-02-24
Abstract: 472,540. Filters. KEENE, E. W. W. Feb. 24, 1936, No. 5489. [Class 46] In a filter of the rotary leaf type, the filter leaves are supported in inclined positions between longitudinally spaced hoops carried by a hollow trunnion shaft, with which the inner edges of the leaves are in hydraulic communication through drainage fittings carried by the hollow shaft. A hollow wormdriven shaft 14 is supported in bearings carried by one end wall of the filter casing 11, and is provided with a hollow boss 15 having radial passages 16, Fig. 3, each of which communicates through a drainage member 22 with the inner edge of one of the filter leaves 21. The leaves 21 are supported in inclined positions between two spaced parallel hoops 20, Fig. 1, and 19, Fig. 3, which are carried by spokes 33 from flanges on the shaft 14, the leaves being connected at the inner corners to the hoops by brackets 34. Each leaf 21 consists of cloth-covered gauze carried by a rectangular frame of U-section, the inner edge of which is perforated to communicate with a drainage conduit 25, to which the central drainage member 22 is connected. To enable the leaves 21 to be withdrawn radially from the casing, they are normally secured at the outer edge by a clamping bar 40 detachably secured by nuts 41 to threaded rods 39 engaging the brackets 34. Each filter leaf may also be maintained in position relatively to the shaft 14 by a centrally disposed rod having a screw-threaded engagement with a collar &c. carried by the drainage member 22 or other fitting on the shaft.
Patent GB-727624-A (GB)
Title: Improvements in or relating to fluid-metering shut-off valves
IPC: G01F15/00
Filed: 1953-02-27
Abstract: 727,624. Hydraulic machines; valves. BENDIX AVIATION CORPORATION. Feb. 27, 1953 [April 8, 1952], No. 5595/53. Classes 69 (2) and 135. A combined fluid-metering and shut-off valve which is particularly adapted for limiting the stroke of a hydraulic motor comprises a body 20 divided into two fluid chambers, each having a port connected thereto, and a piston and valve assembly 37, 38 slidably mounted in one of the chambers so as to divide it into two compartments 50, 51 which communicate with the other chamber 45 through a series of identical apertures 48, 49 in parallel relation, the ratio of the flow resistance of the apertures 48 communicating with the compartment 51 to the flow resistance of the aperture or apertures 49 communicating with the other compartment 50 being in the inverse ratio of the numbers of the two sets of apertures. Thus, when fluid enters the port 46 of the chamber 45, the piston 38 is gradually moved towards the other port 35 and valve 37 finally engages a valve seat 36 so as to cut off the port 35. As the apertures 48, 49 are all of the same size, they have the same flow characteristics. The ratio of the flow resistance to each compartment is therefore independent of changes in viscosity. The apertures 48 are formed in a cylindrical wall 25 forming an extension of a closure cap 21 secured to the body 20 by screws 22. The end of the compartment 50 is closed by a cap 26 urged against the end of the wall 25 by a leaf-spring 34 and guided on an adjustable screwed rod 27 which limits the movement of the piston 38 to the left. The piston 38 is pressed against the rod 27 by a light spring 40. The complete valve 14 is installed between pipes 16, 18 connecting one end of a hydraulic cylinder 13 to a four-way selector valve 12, which alternatively connects the ends of the cylinder to a pump 11 or to a tank 10. The valve 14 limits the movement of the-motor piston 13a from right to left but allows a full stroke of the piston in the opposite direction, the cap 26 then acting as a check valve to allow free movement of the piston 38.
Patent GB-1036974-A (GB)
Title: Automatic shutter cocking mechanism for cameras
Inventor: GOREY ARCHIE HENRY
IPC: G03B9/58
Filed: 1965-02-09
Abstract: 1,036,974. Shutter-setting mechanisms. GRAFLEX INC. Feb. 9, 1965, No. 5595/65. Heading G2A. When the shutter is released, the blade-actuating ring, as it runs down, causes an electric motor to be energized which drives a member to retension the shutter. As shown, the four shutter blades 27 are actuated each by a respective pinion 24, the pinions being driven simultaneously by a master gear 31 which underlies and is integral with a toothed ring 32. Above ring 32 is a spur gear 36, rotatable on a central cylindrical bearing 34 (Fig. 2, not shown). In the space between ring 32 and gear 36 are two helical springs 37, each fixed at one end to posts 38 on ring 32, and at the other end to posts 39 on gear 36. These springs, when stretched tension the shutter blades, this being the position in Fig.1 (not shown). Ring 32 is maintained in this position by a latch lever 46 having a dog 47 which latches in front of one of the teeth on ring 32, lever 46 being maintained in this position by a spring 49. When the shutter release 53 is pressed, a shoulder portion 56 moves away from abutment against the end of lever 46, so that the lever can no longer restrain the ring 32, and the lever is pushed anticlockwise as ring 32 (and hence master gear 31) is rotated clockwise by the tensioning springs, thus operating the shutter. At the same time, another of the teeth on ring 32 engages against a dog 92 of a slidable brake plate 90, moving it to the right against the action of a spring 88. Through a system of levers, this pivots a blade spring 108 (Fig. 1, not shown) to actuate a microswitch 105 which energizes an electric motor. This drives a gear 76 which meshes with a gear 75, the latter operating, through a further train of gears, the spur gear 36. This is rotated clockwise relative to wheel 32 (which is stationary), so that the springs 37 are tensioned once more, thus cocking the shutter again. The invention is of utility in cameras in which the shutter is released by remote control, since the shutter is then re-tensioned automatically, without requiring manual re-wind.
Patent GB-1144071-A (GB)
Title: Process for the removal of sulphur-containing compounds from industrial gases
IPC: B01D53/02
Filed: 1966-02-09
Abstract: 1,144,071. Absorbent for sulphur-containing compounds. GRILLO-WERKE A.G. 9 Feb., 1966 [10 Feb., 1965; 25 Nov., 1965], No. 5675/66. Heading C1A. One or more sulphur-containing compounds, e.g. SO 2 , SO 3 , H 2 S, COS, organic sulphur compounds are removed from an industrial gas by contacting the gas with an absorbent comprising (1) an amphoteric component consisting of an oxide, hydrated oxide or hydroxide of aluminium, zinc, iron or manganese or a mixture of any two or more of these compounds and (2) a basic component consisting of an oxide or hydroxide of an alkali metal or an alkaline earth metal (Mg, Ca, Sn, Ba) or a mixture of any two or more of these compounds, the basic component (2) being present in an amount such that on heating substantially all of the amphoteric component (1) may react with component (2) (to form an aluminate, zincate, ferrite, manganite and/or manganate), the charged absorbent being at least partially freed of sulphur by a regeneration which comprises roasting the absorbent to react components (1) and (2) under oxidizing conditions and hydrolysing the resulting compound (5) with water to re-form the mixture (1) and (2). A mixture of sulphates and thiosulphates of the metal compounds present in the absorbent are formed. Sulphur is formed in some instances. Preferred molar ratios of components (1) and (2) are 1-6 molar parts of component (2) with 1-4 parts of manganese, 2-6 parts of iron, 1-3 parts of aluminium, and 1-4 parts of zinc. When the absorbent contains an alkali metal compound the charged absorbent may be reduced with carbon at above 800‹ C. in the presence of oxygen and steam before being roasted under oxidizing conditions e.g. at 300-800‹ C. in the regeneration. Hydrolysis may be carried out at 100-400‹ C. The regeneration may be in a blast furnace in the upper part of which the sulphur compounds are burnt to SO 2 , in the middle part of which the charged absorbent is reduced with coke and in the lower part of which the absorbent is oxidatively roasted. When the absorbent comprises predominantly alkaline earth metal compounds, e.g. comprises a mixture of a manganese and a magnesium compound the regeneration may be by roasting in the presence of carbon under oxidizing conditions. The absorbent may be prepared by heating a mixture of components (1) and (2) which react to form compounds which are hydrolysed to reform the original mixture. The absorption process may be carried out at a temperature above the dew point of the gas. The absorption may be at 100-300‹ C. The absorbent may be applied to a carrier, e.g. a porous carrier such as coke, in the form of an aqueous paste and may be continuously moistened with water. Alternatively the absorbent may be used in the form of an aqueous suspension or slurry.
Patent GB-104951-A (GB)
Title: Improvements in Haulage Couplings for Tilling Implements.
IPC: A01B61/02
Filed: 1916-04-19
Abstract: 104,951. Tett & Co., H. S., and Tett, F. April 19, 1916. Couplings.-A haulage coupling for a tilling- implement such as is described in Specification 106,515, [Class 6 (i), Cultivating implements &c.], comprises a draught-rod b adapted to engage a tilting hook c normally held in position by engagement with a bolt i, which is operated by a footlever n through a link m to release the hook.
Patent GB-830861-A (GB)
Title: Improvements in or relating to the manufacture of cement
Inventor: WALSH CONRAD LAWRENCE
IPC: C04B28/02
Filed: 1958-02-21
Abstract: Cement is made water-repellent during storage by the addition immediately before, during or after the grinding stage of its manufacteur, of a minor proportion of the order of 0,25% by weight of an additive consisting of a fatty acid or a mixture of a fatty acid and commercial cetyl alcohol, e.g. stearine in powdered or liquid form, or a mixture of stearine or whale acid oil with 2 to 20% of commercial cetyl alcohol.