baber/WOPTO huggingface dataset:
Patent GB-985629-A (GB)
Title: Improved low-loading road vehicle
IPC: A61G3/06
Filed: 1964-01-16
Abstract: 985,629. Adjusting vehicle height; vehicle bodies. P. W. BOTHWELL. Jan. 16, 1964, No. 1947/64. Addition to 956,136. Headings B7B and B7D. An ambulance or other motor vehicle with suspension means such that the body or chassis may be lowered to the ground preferably comprises a pair of hollow members 1, 2 joined by a floor 3 and hoop-like members 4, 5. A flat engine 10 integral with gear-box 11 drives the front wheels which, like the rear wheels, are each mounted on a hub carrier 29 located by a pair of wishbones 17, 18 and sprung by a coil spring 19 the upper abutment 26 of which is attached to the piston rod 24 of a coaxial hydraulic or pneumatic ram by which the floor 3 may be raised or lowered. As shown the rams, which may be modified to act as shock absorbers and interconnected on each side of the vehicle, are connected to an engine-driven hydraulic pump and interlocks may be provided to prevent forward motion when the body is lowered or lowering when the vehicle is moving. Heat retaining concertina-type doors 41 are fitted to the front and back of space 42 and the " up and over " rear door has a lower portion slidable within the upper portion.
Patent GB-570779-A (GB)
Title: Improvements in or relating to helicopters
IPC: B64C27/37
Filed: 1944-02-03
Abstract: 570,779. Helicopters. FAIREY AVIATION CO., Ltd., CHAPLIN, H. E., and COSTIGAN, F. J. Feb. 3, 1944, No. 1988. [Class 4] The rotor blades m of a helicopter are mounted on carriages provided with rollers 35 capable of movement along and rotation about arcuate guides 34 in T-shaped members 31, 32, to permit flapping and drag movements, the stem portions 31 of these members being mounted in bearings e, permitting changes in blade pitch. A gimbal ring g, capable of sliding and tilting movement, is connected by links to lugs projecting from the T-shaped members 31, 32, to impart simultaneous and cyclical pitch variations to the blades. The drive between the shaft 18 and rotor hub c is in the form of an epicyclic reduction gear, comprising compound planet pinions 20, 22, meshing with sunwheels 21, 23. A band brake 24 is provided for locking the rotor hub.
Patent GB-310393-A (GB)
Title: Improvements in a process for distilling oil
IPC: C10G7/06
Filed: 1928-01-23
Abstract: 310,393. Harnsberger, A. E. Jan. 23, 1928. Hydrocarbons, distilling. - In the vacuum distillation of mineral oils in a pipe still, the still increases in cross sectional area, from the inlet end to the outlet end in order that the vacuum carried in the outlet end may penetrate substantially to the inlet end so that cracking and deposition of carbon which would otherwise occur does not take place. A pressure of 4" of mercury may be employed at the outlet of the still and the oil .is exposed to heat in. the still for not more than 10 seconds. Forms which the still may take are shown in Figs. 2, 3 and 4. In a particular apparatus described, oil supplied cold or preheated through a pipe 7 is preliminarily distilled in a coil 6, separation of the heavy fraction occurring in a separator 11, the vapours passing through a scrubber 12 and cooling-coil 12a into storage. The residues are redistilled in a coil 5 of the kind described above and condensed in separators 17, 22,39 provided with cooling-coils 30, 31, 29b, a steam heating-coil 22a, scrubbers or dephlegmators 20, 24 and pumps 19, 26, 34 for removing condensates. Vacuum is maintained by a pump 35.
Patent GB-999617-A (GB)
Title: Improvements relating to steam generating plant
IPC: C21C5/38
Filed: 1962-01-22
Abstract: 999,617. Feedwater supply systems for steam boilers. WAAGNER-BIRO A.G. Jan. 22, 1962 [Jan. 20, 1961 (3)], No. 2194/62. Heading F4A. In a method of generating steam wherein a waste heat boiler utilizes the intermittently available waste heat of a metallurgical or chemical process, steam or hot water from the boiler is supplied to one or more secondary drums during the process periods to provide either a supply of hot feed-water or to heat a heat retaining liquid in the drum(s) and in the process intervals hot feed-water obtained either directly from the drum(s) or by passing feed-water in heat exchange with the hot heatretaining liquid is fed to the boiler. As shown in Fig. 3 water from a boiler drum 3 is withdrawn by pumps 11, heated at 1 and returned to the drum, steam being withdrawn from the drum through line 13 and feed-water being supplied to the drum via an economizer 2 through a line 6. The boiler is associated with a converter and during blowing periods of the latter hot water from drum 7a is passed through a line 7a to a secondary drum 4 containing a float 25 and a volume 18 of cold water beneath the float. The float is thus displaced downwardly and cold water from drum 4 is supplied to drum 3 through line 7b. During the blowing interval of the converter feed-water is supplied through line 7 to the bottom of drum 4 to force the hot water 17 stored above float 25 into the drum 3 through line 7a and thus to minimize the additional heating necessary to maintain the steam supply. The line 7b may communicate with the inlet side of pumps 11 rather than with drum 3 (Fig. 4, not shown) and the steam from line 13 may be passed through a superheater (Fig. 5, not shown). In the embodiment of Fig. 6 steam from line 13 is passed to drum 4 during the blowing period to form a supply of hot water 17 and a steam cushion 19 above the float 25. Feed water from a pump 10 is fed partly to a mixing valve 9 and partly to the bottom of drum 4 through line 7, and hot water from drum 4 is supplied to valve 9 via a take-off pipe supported by float 25 and line 7a. The relative proportions of hot and cold water supplied to mixing valve 9 are controlled through control lines 22 responsive to the water level in drum 3. A circulating line 15 with a pump 12 is provided for circulating the water in the drum 4. A superheater may be provided in line 13 for heating either all of the steam produced in the boiler or only that part of the steam which is supplied to the consumer. In the embodiment of Fig. 12 surplus steam is passed through a line 14 to the central one of three heat exchange coils 16 in drum 4 so that the steam gives up its heat to a liquid 20, e.g. glycerine, oil or mercury, in the drum, the condensed steam being collected in a receiver 4a in the feed water inlet line 33. In the process intervals feed water is fed through the two remaining coils 16 to be heated by the liquid 20 before passing to drum 3. In a further embodiment (Fig. 11, not shown), the two feedwater coils are omitted and the drum 4 merely contains feed-water.
Patent GB-836837-A (GB)
Title: Improvements to polymerization products
IPC: C08F2/02
Filed: 1957-01-22
Abstract: a -Alkyl styrenes in which the alkyl group contains not more than 6 carbon atoms are prepared by the catalytic dehydrogenation of the corresponding iso-alkyl-benzene in the presence of steam or by the dehydration of the carbinols by sodium bisulphate, oxalic acid or anhydrous potassium hydroxide.  a -Acyloxystyrenes in which the acyl group has 1 to 6 carbon atoms are prepared by the reaction of acetophenone with the isopropenyl ester of the corresponding acid in the presence of sulphuric or sulphoacetic acid.  a -Acetoxystyrene is prepared by the reaction of acetophenone with ketene or crotonaldehyde in the presence of sulphuric acid or by the reaction of styrenebromohydrin with acetyl chloride to give a -acetoxy-b -bromoethylbenzene, which is then distilled with quinoline.ALSO:a -Alkylstyrene and/or an a -acyloxystyrene, 1 to 55% by weight, and a -alkyl methacrylate 45 to 99 weight per cent, are copolymerized at 70 DEG  to 160 DEG  C. in the presence of 0.1 to 0.8% of a free radical catalyst to give a product having an intrinsic viscosity in dioxane at 25 DEG  C. of at least 0.20.  The alkyl and/or the acyl group in the styrenes contains not more than 6 carbon atoms, e.g. a -methyl styrene and a -acetoxystyrene, and the alkyl group in the methacrylates contains not more than 4 carbon atoms.  Mass, emulsion, suspension or solution methods may be used and the temperature may be increased incrementally.  Conventional free radical catalysts are listed and other polymerizable compounds, e.g. acrylonitrile, methacrylonitrile fumaronitrile, styrene, methyl acrylate and other alkyl methacrylates may also be present.
Patent GB-789264-A (GB)
Title: Polysiloxanes
IPC: C08G77/18
Filed: 1956-01-24
Abstract: A composition useful as a lubricant comprises a mixture of lower polyalkoxypolysiloxanes, the alkoxy groups containing from 1 to 16 carbon atoms.  The mixture, prepared by hydrolysing a mixture of alkoxyhalosilanes (see Group IV (a)), comprises mainly hexa-alkoxy disiloxane with minor proportions of tri-, tetra- and higher siloxanes and orthosilicates.  In the examples, the alkoxy group is 2-ethylbutoxy.ALSO:Mixtures of lower polyalkoxypolysiloxanes are prepared by reacting an alkyl alcohol containing 1 to 16 carbon atoms with a silicon tetrahalide to form a mixture of alkoxy halosilanes, the molar ratio of alcohol to halide being more than 2 : 1, but less than 4 : 1, removing hydrogen halide formed in the reaction, reacting the mixture of alkoxy halosilanes with water in the presence of a - or b -picoline in amounts stoichiometrically equal to the halogen of the alkoxyhalosilanes, and separating the polyalkoxypolysiloxanes from the liquid picoline hydrohalide salt formed in the reaction. The products comprise mainly hexa-alkoxydisiloxanes, with minor proportions of tri-, tetra- and higher siloxanes and orthosilicates. Preferred alcohols in the reaction are primary and secondary, and mixtures thereof may be employed.  Silicon tetrachloride, bromide or iodide may be used. Reaction between them in the initial stage is preferably effected below 0 DEG  C., e.g. from - 20 DEG  to - 10 DEG C.  The hydrogen halide may be removed by blowing through nitrogen. Temperatures in the second stage are preferably from 70 DEG  to 250 DEG  C. but may be considerably lower.  A solvent such as benzene or toluene may be present.  The picoline hydrohalide salt must be in the liquid state when separated and this is ensured by maintaining the temperature above its melting-point, e.g. above 71 DEG  C. for a -picoline.  It is separated by decantation.  In the examples: (1) SiCl4 (3 mols.) is reacted with 2-ethylbutanol (9.6 mols.) and the product is hydrolysed as above to give a mixture containing 64 per cent hexa-(2-ethylbutoxy)-disiloxane, 16 per cent 2-ethylbutyl silicate, 8 per cent octa-(2-ethylbutoxy) trisiloxane and 1 per cent heavier distillate.  The remaining examples employ the same reactants in varying proportions, all being batch operations.  The Specification also describes, with a schematic flow diagram, a continuous process wherein excess materials are recovered and recycled to the reaction.
Patent GB-317066-A (GB)
Title: An improved kiln or retort for continuous working
IPC: C10B7/14
Filed: 1929-01-23
Abstract: 317,066. Robertson, H. M. Aug. 10, 1928, [Convention date]. Tunnel furnaces. - Solid materials such as waste coal, or briquettes are heated by being passed on wheeled trucks through a tunnel oven in contact with hot combustion products, distillates and a hardened residue being obtained. The oven or retort comprises heating chambers 2 and 3 and cooling chambers 4 and 4<a> the material on trucks being wheeled along tracks 13 from the inlet 2<1> to the outlet 4<1>. Suitable temperatures at which the chambers 2, 3, 4, and 4<a> are maintained are 550‹, 1000‹, 800‹, and 300‹ F., and steam may be supplied to the last cooling chamber. Pillars 18 form lateral chambers 19 in which the hot gases circulate. A fan 24 draws through pipe 23 hot gases from chambers 4 and 3 through valved outlets 20 and 34, and vapours and gases from chamber 2 through valved outlets 25, whereby a draught is induced through chamber 2 towards its receiving end, and the temperature is maintained in this chamber. Each outlet 25 is connected to a main 27 extending through the bed 5 and leading to a discharge pipe 28. The heating means comprises coke or coal fires 26 the combustion products from which pass through a chequer-work wall 39 into contact with the material. Specification 329,674 is referred to.
Patent GB-364867-A (GB)
Title: A compass attachment for measuring angles in azimuth
IPC: G01C17/00
Filed: 1931-01-26
Abstract: 364,867. Mariners' compasses. PEMBERTON, E. L., 6, Bedford Gardens House, Campden Hill, Kensington. Jan. 26, 1931, No. 2456. [Class 97 (ii).] A compass attachment comprises a frame adapted to fit over or form part of the azimuth mirror or sight of the compass and carrying a sextant apparatus by which the horizontal angle between two objects may be determined. The frame 1, shown in plan in the Figure, is provided with pins 2 fitting into holes in the azimuth mirror fitting and has vertical projections 7 at the ends 4, 5 of a cut-away portion adapted to make room for the azimuth mirror (not shown). The projections 7 are braced by a cross connection 6 and carry vertically above the azimuth mirror the front glass 9 the upper half of which is silvered. In the right rear quadrant, the frame 1 carries the rotatable arm 14 of the index mirror 12. The arm 14 is provided with a fine adjustment 16 and co-operates with a scale 15. Compensating weights 3 for balancing are secured to the frame 1. The light from the mirror 9 may be received by a small telescope.
Patent GB-548905-A (GB)
Title: A process for the fractionation of hydrocarbon mixtures
IPC: C07C7/13
Filed: 1941-02-24
Abstract: 548,905. Separating hydrocarbons. BARRER, R. M. Feb. 24, 1941, Nos. 2494 and 10832. [Class 1 (i)] [Also in Group IV] The separation of straight chain hydrocarbons from branched chain or cyclic hydrocarbons, or of methane, ethane and ethylene from hydrocarbons with three or more carbon atoms is effected by adsorption in a crystalline zeolite having a three-dimensional anionic network and interstitial dimensions of a suitable size. The hydrocarbons may be in liquid or vapour phase. Suitable zeolites are natural or synthetic analcite with part or all of the sodium replaced by calcium, and natural or synthetic chabasite.
Patent GB-1474016-A (GB)
Title: Staple orienting method for solid rocket propellants
IPC: C06B21/00
Filed: 1967-01-17
Abstract: 1474016 Propellant manufacture AEROJETGENERAL CORP 17 Jan 1967 [18 Jan 1966] 2549/67 Heading C1D [Also in Division F3] In the preparation of solid rock propellants, uncured propellant containing randomly dispersed staples is passed through a screen in order to orient the staples. The staples may be of copper, aluminium, iron, stainless steel, hafnium, brass, zirconium, or silver. To form an end-burning propellant with longitudinally aligned staples (Fig. 1, not shown), a cylindrical tube filled with propellant and having a wire screen at one end is inserted into the rocket casing and propellant is forced through the screen by nitrogen pressure or by mechanical or hydraulic means, and is cured in the casing. As shown in Fig. 2, an internal burning propellant is formed by providing a central core 44 in the cylindrical rocket casing 42; propellant passes through the screen 48 in elongated droplets 60 containing longitudinally aligned staples; these droplets fall into the casing in such a way that the staples are aligned perpendicularly to the axis of the casing. If a diaphragm 50 in the screen is vibrated up and down by means of rod 52, a radial orientation of the droplets and staples results. A second rotating screen may be provided below the screen 48.
Patent GB-1422940-A (GB)
Title: Nonwoven sheet material
IPC: D04B23/10
Filed: 1972-01-19
Abstract: 1422940 Stitched paper sheet SCOTT & FYFE Ltd 8 Jan 1973 [19 Jan 1972] 2604/72 Heading D1R A non-woven sheet rendered longitudinally stretchable by transverse crimps (corrugations) is reinforced by longitudinal stitches. The sheet is preferably crepe paper. The transverse crimps may be at 90‹ to the longitudinal axis, alternatively the sheet may be cross-creped. A sewing-knitting machine may be used to introduce chain stitching or tricot stitching. The longitudinal stitches may hold in place weft threads running transversely on the face to which the stitches are applied or on the opposite face. The yarn may be 250 denier nylon with 5 or 10 longitudinal threads/inch and 10 weft threads/inch. A coating of acrylic resin may be applied to the longitudinal threads or to both the longitudinal and weft threads. The product may be laminated to a layer of foamed synthetic rubber or coated with bitumen.
Patent GB-863881-A (GB)
Title: Improvements in or relating to methods of coating cylindrical members by thermal evaporation in a vacuum and apparatus for carrying out such methods
Inventor: RISEMAN JACOB
IPC: C23C14/22
Filed: 1958-01-27
Abstract: 863,881. Coating by vapour deposition. INTERNATIONAL RESISTANCE CO. Jan. 27, 1958, No. 2637/58. Class 82(2) In apparatus for coating cylindrical members by thermal evaporation in a vacuum, a rotatable support is located in an evacuable chamber and has means for rotatably mounting the cylindrical members thereon at equal distances from and parallel to the axis of rotation of the support, and a coated wire filament is mounted along or parallel to the axis of the support and co-extensive with the cylindrical members and is provided with heating means so as to evaporate the coating therefrom. As shown, cage 10 is supported for rotation upon pairs of wheels 13, 13 and 14, 14, and cylindrical members 15 on which metal is to be deposited, are mounted on supports 16 of the cage. The cage is rotated and filament 17 heated to the evaporation temperature of the metal coated thereon so that metal vapour flows in all directions to condense upon members 15 and upon plate 20 which indicates the thickness of the coatings by measurement of its resistance. Supports 16, which are of stiff wire and fitted in members 15 so that there is no relative movement therebetween, are mounted between sides 11 of cage 10 in opposed spiral slots 25. The lower side of. one end of each support is weighted so that as cage 10 rotates, each support rotates about its own axis through the same angle as the cage whereby all points of members 15 are evenly exposed to filament 17. During evaporation, cage 10 is rotated in the direction of arrow 64 so that supports 16 are retained in slots 25. To unload members 15 after evaporation, cage 10 is rotated in the direction of arrow 65 so that supports 16 drop out of slots 25. To ensure that members 15 are provided with coatings which are uniform from end to end, the central portion of main heater wire 34 (Fig. 7) of filament 17 is helically wound with wire 36 before covering it with coating metal 35. Thus when filament 17 is heated, the central portion will be cooler than the rest of wire 34 so that a smaller amount of metal 35 will be evaporated therefrom. The apparatus may be used for making resistors by metallizing glass or ceramic cylindrical members and then applying terminal coatings after masking the central portions of the members. If necessary, a metal which adheres well to the resistance film and the terminating metal is interposed.
Patent GB-1218005-A (GB)
Title: 3-NITRO-gamma-RESORCYLIC ACID ANILIDES AND PROCESS FOR PREPARING THEM
IPC: A61K31/165
Filed: 1969-01-16
Abstract: 1,218,005. Resorcyclic acid anilides. FARBWERKE HOECHST A.G. 16 Jan., 1969 [18 Jan., 1968], No. 2643/69. Heading C2C. Novel resorcyclic acid anilides of the formula wherein R is H, Cl, Br or I, X is halogen, NO 2  or CF 3 , and Y is H, CH 3 , CF 3  or OCH 3  or halogen, and 2 is H or if Y is OCH 3  or halogen, 2 may have the same meaning as Y are prepared either by heating to a temperature in the range of from 150‹ to 200‹ C. a phenyl or substituted phenyl ester of the appropriate 3-nitro-γ- resorcylic acid with the corresponding amine, or by nitrating the appropriate γ-resorcylic acid anilide, or by treating with an ether-splitting agent and/or hydrolysing a compound of the formula in which R<SP>1</SP> and R<SP>2</SP> are C 1-8  alkyl, C 6-8  aralkyl or C 1-8  acyl, and, if desired, halogenating the compounds thus obtained in which R is H. Phenyl 5 - chloro - 3 - nitro - 2,6 - dihydroxybenzoate is made by heating sulphuryl chloride with a solution in glacial acetic acid of phenyl 3 - nitro - 2,6 - dihydroxybenzoate resulting from the nitration of phenyl 2,6-dihydroxybenzoate. Pharmaceutical compositions, suitable for oral or parenteral administration and having anthelmintic activity, contain the above novel compounds and suitable corners or diluents.
Patent GB-588177-A (GB)
Title: Improvements in and relating to electrical contact elements or blanks
IPC: B23K1/20
Filed: 1945-02-02
Abstract: Blanks or compacts to be soldered or brazed on supporting members to form electric contacts, and comprising one or more constituents not wetted by solder &c., and one or more constituents wetted by solder &c., are preliminarily subjected to the action of an agent for removing the non-wettable constituent. Such non-wetting constituents may consist of cadmium oxide, tungsten or carbide thereof molybdenum or carbide thereof and other oxides or metals having a relatively high melting point.  A composition comprising silver and cadmium oxide may be immersed in a mixture of hydrochloric acid and water in equal proportions at room temperature up to 80 DEG C. from 2 to 10 minutes to remove cadmium oxide to a depth of 0.0005 to 0.01 in., and thereafter washed in clean running water for several minutes and dried in a centrifugal drier or by tumbling in sawdust.  Such a composition may alternatively be pressed into shape, sintered in a neutral atmosphere at 800 DEG  to 900 DEG C. and after re-pressing, if desired burred, and then tumbled for about 10 minutes in a wooden tumbling p  barrel containing a solution of about 50 per cent. muriatic acid and water, and finally washed in running water for several minutes and tumbled in sawdust to dry.  A tungsten-silver or tungsten-copper composition may be etched in a bath of molten sodium nitrite at 290 DEG  to 310 DEG C. from one to five minutes to remove tungsten from the surface to a depth of 0.0005 to 0.005 in. by forming sodium tungstate which is dissolved in the bath and leaving pure silver or copper.  Residual sodium nitrite may be removed by immediately washing in clear cold water.
Patent GB-684751-A (GB)
Title: Improvements in or relating to electro-magnetic chokes
IPC: H01F27/245
Filed: 1948-01-29
Abstract: 684,751. Inductances. PHILIPS ELECTRICAL, Ltd., and BOTTERILL, A. R. Jan. 29, 1948, No. 2688/48. Class 38 (ii). A choke has two similar coil-carrying limbs formed of rectangular laminations projecting beyond the coil ends and two further laminated limbs inserted between the projecting ends of the first two limbs with the interposition of non- magnetic strips to provide a discontinuity in the iron path. Figs. 1, 3 show how the four limbs 3, 4, 7, 8 are mounted with the interposition of strips 9 of non-magnetic material. The limbs are secured together by clamps 10 which permit one or both of the short limbs 7, 8 to be adjusted so as to alter the magnetic characteristics of the choke. Specification 236,593, [Class 38 (ii)], is referred to.