baber/WOPTO huggingface dataset:
Patent GB-988918-A (GB)
Title: Detector for alkali-metal fluids in a gaseous stream or in a vacuum
IPC: G01N25/06
Filed: 1963-01-25
Abstract: 988,918. Detection of alkali metal fluids, detection of leaks in pipes. UNITED AIRCRAFT CORPORATION. Jan. 25, 1963 [Feb. 13, 1962], No. 3325/63. Headings G1B and G1S. A device for detecting the presence of alkali metal e.g. lithium, fluids in a gaseous stream or in a vacuum is characterised in that a tensioned metal wire or strip 16 e.g. of platinum is located in the gaseous stream or vacuum and is heated to a temperature lying slightly below the melting point of the metal, and that a material e.g. a sleeve of a silica compound 42, which reacts with the metal in the presence of alkali metal fluids to form an alloy which has a substantially lower melting point than the metal so that the metal wire or strip is broken whereby a signalling device is actuated. In the device of Fig. 1 a pipe 34 carrying liquid alkali metal is enclosed by a larger diameter pipe 36 containing air or an inert gas such as argon. If there is a leak in the pipe 34, the alkali metal will be carried to a housing 26 containing the wire 16 supported between conductors 12, 14 at least one of which is resilient to tension the wire 16, the wire being heated by passage of a current from a battery 22. The alkali metal will cause the silicon of the sleeve 42 to alloy with platinum wire 16 causing the wire to break on indication of this being given by the reading of an ammeter 24 in the wire circuit. The device may alternatively be positioned in the diffuser of a nuclear reactor turbine engine which is cooled by a ahthium filled radiator. In this case the wire 16 will be heated by the exhaust gases from the turbine, and in some cases the electrical heating circuit for the wire 16 may be dispersed with. Fig. 5 shows such an arrangement the device illustrated being adapted to make contacts 58, 60 in an alarm circuit when the wire 16 breaks. In Fig. 6 the platium wire 16 has several sleeves 42 of siliceous material and is tensioned by a spring 54 between rigid support conductors 50, 52. The wire 16 is disposed in a vacuum jacket surrounding the liquid metal carrying pipe 34. With several of the devices shown in Fig. 6 disposed along the pipe 34 it is possible to locate a leak in the pipe.
Patent GB-851116-A (GB)
Title: Improvements in or relating to catalyst/solvent dispersions suitable for use in the polymerisation of olefines ; and the polymerisation of olefines therewith
Inventor: BORROWS EDWARD TEGGIN
IPC: C08F10/00
Filed: 1956-02-02
Abstract: A catalyst solvent dispersion suitable for use as the reaction medium in Ziegler olefin polymerization reactions is prepared by mixing, in solution in the solvent, a titanium tetraalkoxide with a compound of the formula Al Rn X(3-n), where R is an alkyl group, X is halogen and n is 1 or 2, the mixing being effected in such an amount of solvent that the initial concentration of titanium alkoxide in the resulting admixture is less than 5 millimols./litre.  The titanium compounds preferably contain not more than 4 carbon atoms in the alkoxide group, e.g. titanium isopropoxide.  The preferred compounds Al Rn X(3-n) are those where n is 2 and X is Cl.  The two components are preferably used as solutions in an inert solvent in a concentration of 0.5 to 5 millimoles/litre of the Ti compound and relative molar proportions of between 4 and 15 of the Al compound to 1 of the Ti compound.  The resultant catalyst is formed as a precipitate of particle size less than 1 micron.  In the case of titanium tetra alkoxides having propoxide and larger substituents, less than half the maximum possible precipitate is formed within one hour from solutions containing between 1 and 5 millimoles of each component at less than 40 DEG C. but more than half is formed at above 40 DEG C. The precipitate may be obtained before the olefine polymerisation or during the polymerisation, e.g. by mixing the components below 40 DEG C. and then passing in the olefin the exothermic nature of the polymerisation raising the temperature above 40 DEG C.  In an example 2.14 parts (wt.) of titanium tetraisopropoxide are added to 1730 parts of dry iso-octane at 40 DEG C. under nitrogen and 9.05 parts of diethyl aluminium chloride are added.  The mixture is stirred for one hour and then ethylene is passed therethrough.  The process of Specification 813,291, wherein olefine polymerisation is carried out in solution in an inert solvent in the presence of a catalytic mixture of a tetra-alkyl oreto-titanate, wherein each alkyl group contains 8 to 13 carbon atoms, and an alkyl aluminium halide wherein each alkyl group contains 2 to 12 carbon atoms, is disclaimed. According to the Provisional Specification the Ziegler process may be carried out with any catalyst formed from a titanium tetraalkoxide and an alkyl aluminium halide of the above formula. The precipitated catalyst may be isolated or deposited on supports or carriers. Specifications 833,430 and 851,111 also are referred to.
Patent GB-1161672-A (GB)
Title: Antimicrobial Compositions
IPC: A61K8/42
Filed: 1966-07-29
Abstract: 1,161,672. Antimicrobial compositions. FINE ORGANICS Inc. 29 July, ,1966 .[3 Aug., 1965], No. 3392/69. Divided out of 1,161,671. Headings A5B and A5E. [Also in Division C5] ' An antimicrobial composition comprises an aromatic ring halogenated salicylanilide and a quaternary ammonium compound which contains at least one C 7-21  alkyl or C 7-21  alkenyl substituent attached to the quaternary N atom. Typical examples relate to (a) an aqueous floor-sanitising concentrate containing a mixture of di- and tri-bromosalicylanilides, cetyl trimethyl ammonium chloride, o-benzyl-p-chlorophenol, and tridecyl alcohol-ethylene oxide adduct; (b) an aqueous fabric softening composition comprising di- and tri-bromosalicylanilides, a mixture of C 12 , C 14 , C 16  and C 18  alkyl dimethyl benzyl ammonium chlorides, and 1-methyl-1-alkylamido-ethyl-2-alkylimidazolinium methosulfate; and (c) a shamp00 containing 3, 4', 5-tribromosalicylanilide, a mixture of C 12 , C 14 , C 16 , and C 18  alkyl. dimethyl benzyl ammonium chlorides, 2-heptadecenyl-1 (ethyl-#-oxy-propanoic acid) imidazoline, 1-hydroxyethyl-2-heptadecenyl imidazoline, and a tridecyl alcohol-ethylene oxide adduct. The antimicrobial composition may also include lauryl diethylene triamine, stearyl triethylene tetramine, lauroyl amide diethylene diamine, dimethylamino propyl lauramide or dimethylamino propyl stearamide to increase the antimicrobial activity therecf.
Patent GB-555633-A (GB)
Title: Improvements in or relating to pneumatic tires
IPC: B60C11/12
Filed: 1941-03-14
Abstract: 555,633. Pneumatic tyres. FIRESTONE TIRE & RUBBER CO. March 14, 1941, No. 3542. Convention date, Aug. 3, 1940. [Class 144 (ii)] To minimize objectionable noise from resonant vibrations set up in a tyre, the tread is formed with a plurality of traction elements, such as serrations or slits in the side edges of circumferential ribs, Figs. 1, 6, arranged in a series of successive circumferential groups, such as A-H, Fig. 3, each group occupying the full tread width and the elements of any one group being each of different circumferential length from that of the elements in adjacent groups. In the serrated rib pattern shown in Fig. 1 the resultant zig-zag ribs intermesh and the centre lines of the elements (through the peaks and valleys) are transverselh aligned on axes parallel to the tyre axis Due to the convexity of the tread surface this results in the lengths of the elements (between peaks) towards the sides of the tread being less, in each group, that the lengths of the elements towards the crown region of the tread. This applies also to the elements formed by the slits shown in Fig. 6, the lengths being measured circumferentially between adjacent slits in each rib. The slits are preferably of rounded bottom formation, sawn, cut or moulded in the tread.
Patent GB-110287-A (GB)
Title: Improvements in Loom Pickers.
Inventor: SHAW CHARLES
IPC: D03D49/36
Filed: 1917-03-12
Abstract: 110,287. Shaw, C., and Pontefract, F. March 12, 1917. Pickers are made with a body a of metal, such as cast or malleable iron, provided with a recess d near the spindle and a recess e to receive renewable and reversible buffalo-hide blocks for engagement with the picking-stick and the shuttle respectively, and a long bore a<1> for the spindle, A hole e<1> is provided for the insertion of an instrument to remove the block from the recess c. The block in the recess d may be secured by means of screws.
Patent GB-1037502-A (GB)
Title: Porous sintered aluminous substances
IPC: C04B38/00
Filed: 1963-01-29
Abstract: A porous sintered aluminous substance contains alumina or alumina with at least one other refractory oxide, for example thoria, beryllia, silica or zirconia in proportion not more than 50% by weight based on the alumina, and has total pore volume greater than 20 cm.3 per 100 grm., the pores having diameters of from 0.1 micron to 5 microns.  A gel of hydrated alumina or a mixed gel is mechanically dried by suction, filter - pressing, centrifuging or wringing; washed; subjected to either a crushing, molaxation, kneading or rolling treatment or a thermal treatment at a temperature not exceeding 110 DEG  C.; and sintered at a temperature of 1500 DEG C. to 1800 DEG  C.  The gel starting material is obtained by precipitation at a pH between 7.5 and 11 from an aqueous solution of an alkali metal aluminate or an aluminium salt.ALSO:A sintered aluminous substance contains alumina with at least one other refractory oxide, for example silica, thoria, zirconia, beryllia, and has total pore volume greater than 20 cm3 per 100 gm of the substance, and pores with diameters in the range from 0.1 microns to 5 microns inclusive.  The substance may contain not more than 50% by weight based on the weight of the alumina of the other refractory, oxide(s).  A mixed hydrogel is mechanically dried, washed, then subjected either to another mechanical treatment or to drying at a temperature not exceeding 110 DEG C., and sintered at a temperature in the range 1500 DEG C. to 1800 DEG C.  Examples 7 and 8 relate to silica-alumina
Patent GB-965771-A (GB)
Title: Improvements in retainer bushings
Inventor: BIESECKER DONALD LESLIE
IPC: F16B9/02
Filed: 1961-01-31
Abstract: 965,771. Bearings; assembling rubber-bush mountings. ILLINOIS TOOL WORKS Inc. Jan. 31, 1961, No. 3661/61. Headings F2A and F2S. A resilient bush comprises a head 18 and a shank 20, the latter having a cylindrical bore and an outer surface with at least one shoulder 28 facing towards the head 18 and a number of circumferentially-spaced axial grooves 30 leaving relatively thin and flexible webs 34 between the thicker parts of the shank so that the webs 34 can flex during insertion of the bushing into an aperture 36 of a workpiece for example. The bush is forcedinto the aperture 36 and is held between the head 18 and the shoulder 28, and a rotatable member 14 having a peripheral groove 44 therein, is mounted into the bush having a rib 40 which engages said groove 44. Preferably the bush is made of synthetic plastics material which is self lubricating.
Patent GB-591986-A (GB)
Title: Improvement in impregnated fibrous material, impregnant, and method of making the same
IPC: D21H17/53
Filed: 1944-02-28
Abstract: A composition, suitable for impregnating fibrous sheeted material to improve its resistance to oil, gasoline and other solvents and to improve its dielectric properties, is prepared by stirring a molten oil-modified alkyd resin into a bodied drying oil held at a temperature not exceeding 350 DEG F. in proportion of up to one part by weight of resin to two parts by weight of bodied oil, reheating until the mixture is clear and then cooling rapidly.  The drying oil may be tung oil, dehydrated castor oil, or such synthetic oils as those known to the trade as Kellin (produced from linseed oil), Kelsoy (produced from soya beans) or Conjulin (produced from linseed oil).  These oils may be used alone or in combination with tung oil, dehydrated castor oil or oiticica oil.  The drying oil may be heat-bodied and where a combination of oils is employed they may be bodied separately and then mixed after bodying.  Specification 522,892 is referred to.  The Specification as open to inspection under Sect. 91 describes also a composition comprising substantially only a bodied drying oil containing a compatibilized alkyd resin in solution therein up to one half the oil.  This subject-matter does not appear in the Specification as accepted.ALSO:A composition, suitable for impregnating fibrous sheeted material to improve its resistance to oil, gasoline and other solvents and to improve its dielectric properties, is prepared by stirring a molten oil-modified alkyd resin into a bodied drying oil held at a temperature not exceeding 350 DEG  F. in proportion of up to one part by weight of resin to two parts by weight of bodied oil, reheating until the mixture is clear and then cooling rapidly.  The drying oil may be tung oil, dehydrated castor oil, or such synthetic oils as those known in the trade as Kellin (produced from linseed oil), Kelsoy (produced from soya beans) or Conjulin (produced from linseed oil). These oils may be used alone or in combination with tung oil, dehydrated castor oil or oiticica oil.  The drying oil may be heat-bodied and where a combination of oils is employed they may be bodied separately and then mixed after bodying.  In the production of gaskets and masking tape, the fibrous base material such as cellulose may be impregnated with the composition, preferably without the aid of solvents, at elevated temperature.  Specification 522,892, [Group III], is referred to.  The Specification as open to inspection under Sect. 91 describes also a composition comprising substantially only a bodied drying oil containing a compatibilized alkyd resin in solution therein up to one half the oil.  This subject-matter does not appear in the Specification as accepted.
Patent GB-580050-A (GB)
Title: Improvements in or relating to the manufacture of composite artificial filaments
IPC: D01F2/00
Filed: 1944-02-29
Abstract: Composite artificial filaments of improved strength and having a three-dimensional crimp are obtained by simultaneously extruding a plurality of streams of filament forming solutions differing in origin and/or composition and from which cellulose may be regenerated, such as differing solutions of viscose, into a coagulating medium and causing the streams to join in side by side relationship in proximity to the point of entrance into the coagulating medium, stretching the freshly spun filaments by at least 20 per cent, thereafter relaxing them while still plastic and setting them in relaxed condition.  The degree of crimp may be varied by a suitable selection of the original viscose solutions or by varying the composition of the coagulating bath.  During stretching, the filaments may be passed through a softening bath or may be subjected to treatment with a softening liquid such as hot water or hot acid by spraying or immersion.  The filaments may be stretched by passage over rolls driven at successively greater speeds or by passage over a thread-storage, thread-advancing device.  The amount of stretch may vary from 20 per cent up to the maximum before rupture, and after stretching the filaments may be cut to staple fibre.  Numerous examples are given wherein two solutions of viscose differing in composition, origin or characteristics are extruded, from one of the devices for producing composite filaments as described in Specification 579,081, into a coagulating bath containing sulphuric acid, sodium sulphate, zinc sulphate, and in one case glucose, and the freshly-spun composite filaments, immediately after leaving the spinning bath, are stretched and then allowed to relax. Specification 580,764 (as open to public inspection under Sect. 91) also is referred to.
Patent GB-105905-A (GB)
Title: Improvements in or relating to Crystalline or like Detectors for Electric Waves.
Inventor: HURM HORACE
IPC: H01L29/00
Filed: 1917-03-15
Abstract: 105,905. Hurm, H. March 21, 1916, [Convention date]. Wave-detectors.-A crystal detector comprises a number of contact wires, the inner ends of which bear on the crystal, while the outer ends are connected to terminals adapted to be engaged by a rotating arm by means of which the point making the most sensitive contact is readily selected. The crystal is capable of rotation to vary the points of contact with the wires. The casing of the detector is constructed so that it forms a condenser in parallel with the detector. In the arrangement shown in Figs. 1 and 2, radial contact wires c are bent at their inner ends and passed through holes d in the base a of insulating-material. The outer ends of the wires c are connected to terminals b over which a contact j, rotatably mounted on an arm i, passes. The arm i is mounted on a metal sleeve h capable of rotation about a metal tube g which is separated from a second metal tube e by a tube of insulating material f so that the tubes e, f, and g form a condenser. The crystal o is secured to the bottom of a capsule p, or a spring l is placed between the crystal and capsule p, and the capsule is depressed until the inner ends of the springs care flush with the base a. The tube c is connected to the aerial by means of a binding- screw A and a lead 1; while the tube g is connected to earth by means of a binding screw E and a lead 2. In the modification shown in Fig. 3, a tube e<1> is provided with a number of slots k adapted to receive a snug f<1> on the capsule p'. The capsule p<1> is secured in position by a nut g.
Patent GB-539196-A (GB)
Title: Improvements in liquid fuel vaporizing apparatus for internal combustion engines
IPC: F02M21/10
Filed: 1940-02-29
Abstract: 539,196. Heating charge. YAMASHITA, S. Feb. 29, 1940, No. 3817. [Class 7 (iii)] The inlet manifold 11 is enclosed in a byepass 2 to the main exhaust pipe 1. An adjustable valve 9 in each conduit from the engine to the manifold and its byepass is controlled by the pressure in the inlet manifold which is provided with a manually adjustable valve 15. Ports 21 of differing length establish communication with one or more chambers 19 each containing a diaphragm 23 linked to one of the valves 9.
Patent GB-575460-A (GB)
Title: Improvements in or relating to optical projectors
IPC: G03B21/20
Filed: 1944-03-01
Abstract: 575,460. Optical-projection apparatus. DANEK, J., and TUDDENHAM, J. March 1, 1944, No. 3870. [Class 97 (i)] A unit for an optical projector comprises a reflector ] and condenser 2 mounted in spaced relation in two holder portions of a single integral casting which is so formed as to fit into a tubular housing or sheath and to allow room for a lamp to be positioned between the reflector and condenser. As shown, the casting comprises annular holder portions 3, 4 connected by two side bars 5, the reflector and condenser being held against shoulders in the annular portions by springs. A number of strips 10a of heat-absorbing glass are held in grooves formed in two segmental parts 11 projecting from the annular portion 4. The surface 3b of the portion 3 and the partcylindrical surfaces 11c of the projections 11 are both machined to the same radius and form bearing surfaces by which the unit is centred in the tubular sheath.
Patent GB-137644-A (GB)
Title: Improvements in carburettors for internal combustion engines
IPC: F02M17/36
Filed: 1919-02-17
Abstract: 137,644. Copson, T. C. Feb. 17, 1919. Spray carburettors.-A carburettor as described in Specification 136,685, having a rotatable atomizing-tube controlling the fuel supply, is modified so that the same float chamber can be fitted either on the right or on the left of the mixing-chamber. The float chamber B is provided with a lug B<2> which fits on a sleeve E surrounding the rotatable atomizing-tube C, the lug B<2> being so placed that the float chamber can be fitted with either end B<3> or B<4> next to the mixing-chamber. The fuel passage from the float chamber to the atomizing- tube may pass through the centre of the lug B<2>; or there may be two fuel passages F, G symmetrically arranged so that the one not in use is blanked off by the sleeve E.
Patent GB-889464-A (GB)
Title: Improvements in windscreen wiper arms
IPC: B60S1/34
Filed: 1960-02-03
Abstract: 889,464. Securing windscreen wiper arms on shafts. BIGNON, L. C. A. M. Feb. 3, 1960 [Feb. 6, 1959; May 12, 1959], No. 3887/60. Class 80 (2). [Also in Group XXIII] The hub 1, to which a windscreen wiper arm 6 is pivotally connected by a pin 5, is held by a spring latch 13 on the head 3 of the wiper shaft 2, and the arm 6 is normally urged toward the windscreen 8 by a tension spring 9 connecting the arm to a cranked link 17, pivoted on a pin 12 on the hub 1 and applying pressure to the latch 13 to retain it in position. The pin 12 is nearer to the hub 1 than the pin 5 so that the arm 6 may be swung away from the windscreen to move the spring 9 through a dead-centre position to a position where it urges the arm 6 away from the windscreen, the cranked form of the link permitting such movement. When the arm 6 is urged away from the windscreen the pressure applied by the link 17 to the latch 13 is reduced so that the hub 1 may be disengaged from the head 3. The latch 13 consists of a U-shaped spring formed with a detent 22 for engaging the head 3. Alternatively a bent-over part of one limb of the spring passes through a hole in the other limb to engage the head. In a further construction the limbs of the latch are urged apart by a compression spring, and in another the latch is formed by two overlapping spring strips.
Patent GB-547299-A (GB)
Title: Improvements in and relating to model bricks or blocks for instruction purposes or childrens use
IPC: A63H33/04
Filed: 1941-03-22
Abstract: 547,299. Toy building blocks. SMITH, W. H. March 22, 1941, No. 3903. [Class 132 (iii)] A set of toy building blocks is made of uniform size in the section of a right-angled isosceles triangles, the thickness of each block being equal to the length of one of the two equal sides of the triangle, all the faces of each block being treated to simulate different elements of building construction. Brick, tile, stucco and other building patterns are simulated, e.g. as in Figs. 1 and 4. The blocks may be made of clay or plastics, the design being impressed into the faces during manufacture. Alternatively the blocks may be made of cardboard or similar material printed before being formed into blocks.
Patent GB-265996-A (GB)
Title: Method of and means for treating artificial silk produced in centrifuges
IPC: D01D10/04
Filed: 1927-02-12
Abstract: 265,996. Vereinigte Glanzstoff-Fabriken Akt.-Ges. Feb. 13, 1926, [Convention date]. Apparatus for making filaments.-The cakes of artificial silk, particularly viscose silk, collected in the centrifugal boxes are washed and centrifuged in the boxes in which they are spun, and are then reeled into hanks and finally dried, preferably under tension. During the washing operation the cakes of silk are rapidly rotated, and in order to protect the cake the water or other liquid is supplied in an atomized condition. The washing process may be carried out in the spinning machine, but it is preferred to provide separate spindles to which the boxes can be transferred, and with these spindles are associated spraying nozzles, collecting devices for liquid, &c. It is convenient to collect the first wash waters separately so as to permit recovery of the chemicals contained therein. Desulphurizing, bleaching or softening agents may be added to the wash water.
Patent GB-705126-A (GB)
Title: Improvements in or relating to cathodes for electric discharge tubes
IPC: H01J1/28
Filed: 1952-02-14
Abstract: 705,126. Cathode materials. SIEMENS & HALSKE AKT.-GES. Feb. 14. 1952 [Feb. 16, 1951], No. 4002/52. Class 39(1) In a dispenser-type cathode, in which an internal store of emissive material permeates through the pores of a containing member, the container may be of porous carbon, or have a carbon coating. A container of sintered porous tungsten or molybdenum may be coated with graphite, as by rubbing or painting, or may be coated by carburization.