baber/WOPTO huggingface dataset:
Patent GB-738011-A (GB)
Title: Dehydrochlorination of polychlorocyclohexanes
IPC: C07C17/25
Filed: 1952-10-13
Abstract: Polychloroaromatic compounds, e.g. trichlorobenzene, are made by the dehydrochlorination of a polychlorocyclohexane containing at least 6 chlorine atoms by heating in the presence of a dehydrochlorination catalyst and introducing an elemental halogen into the reaction mixture in an amount of not more than 4 per cent of the polychlorocyclohexane being treated.  The dehydrochlorination catalyst may suitably be anhydrous ferric chloride, aluminium chloride, antimony pentachloride, stannic chloride, boron trifluoride, sodium chloride, cuprous chloride, sodium nitrite, ammonia and other aminoid compounds, finely divided carbon, anion exchange resins, alumina, silica or diatomaceous earths, the preferred classes of catalysts being the Friedel-Crafts type catalysts and surface-active catalysts such as finely-divided carbon. The reaction is preferably carried out at 180 DEG  to 400 DEG  C.  In an example benzene hexachloride is heated at 240 DEG  C. in the presence of ferric chloride with introduction of gaseous chlorine to give trichlorobenzene; by similar treatment of heptachlorocyclohexane and octachlorocyclohexane, tetrachlorobenzene and pentachlorobenzene respectively, are obtained.  Reference has been directed by the Comptroller to Specification 704,820.
Patent GB-1075960-A (GB)
Title: Dry shavers
IPC: B26B19/10
Filed: 1966-06-08
Abstract: 1,075,960. Dry shavers. CARINTHIA ELEKTROGERATE G.m.b.H. June 8, 1966 [June 15, 1965], No. 25582/66. Heading B4B. A shaving head for a dry shaver comprises a cutter foil 5 supported by bars 3, 3<SP>1</SP> one edge of the foil having secured thereto a plate 6 of greater rigidity than the foil, the plate being provided with teeth 6<SP>1</SP> co-operating with the teeth 15 of a cutter (11, Fig. 3) movable back and forth under the foil. The plate is secured by spot welds to the foil. The plate may, alternatively, be detachably secured to the foil in which case (a) the plate (6, Fig. 1) has apertures corresponding to the foil apertures (7) and both sets of apertures are engaged by projections on the bar (3) or (b) the plate (6, Fig. 4) has hooks (23) punched out therefrom and abutments (24), the foil (5) having apertures (25) corresponding to the abutments (24) so that when the edge of the foil (5) is pushed under the hooks (23) it is held by the edges of the apertures (25) engaging on the abutments (24). Lugs on the foil may oo-operate with recesses in the bars or the foil may be permanently connected to the bars.
Patent GB-462552-A (GB)
Title: An improvement in the manufacture of tents
IPC: E04H15/64
Filed: 1935-09-16
Abstract: 462,552. Tents. NUTTALL, J. L. Sept. 16, 1935, No. 25589. [Class 20 (i)] The fabric 1 of a tent is reinforced by the insertion of a wire cable 3, which is covered to prevent deterioration by weather, within seams 2 formed along the edges of the fabric, loops being provided at the corners for the reception of eyelets 13 to which are attached guy ropes 14. As shown in Fig. 3 for a ridge tent, the wire cable is formed at one end with a loop 5 for attachment to a tent pole, then passed through a seam (not shown) in the middle of the fabric to provide a ridge-supporting portion 7, and through the seams 2 at the edges and ends of the fabric, the other end of the cable with the end of the ridge-supporting portion being formed into a loop 8 for attachment to the other tent pole. Intermediate guy ropes 20 may be attached to D-shaped rings 19 held by tabs 21 stitched to the tent fabric, or such rings and tabs may replace the eyelets and loops at the corners of the tent. In bell tents, lengths of cable are inserted in seams in the body of the tent fabric, and have eyelets at their lower ends.
Patent GB-1134478-A (GB)
Title: Electrical filter assembly and electrical connector assembly
IPC: H01R13/719
Filed: 1967-06-02
Abstract: 1,134,478. Two-part couplings. INTERNATIONAL STANDARD ELECTRIC CORP. 2 June, 1967 [6 June, 1966], No. 25614/67. Heading H2E. [Also in Division H1] An electrical filter assembly for use with an electrical connector having a plurality of terminals comprises a high dielectric disc provided with conductive coatings and a ferromagnetic disc, the two discs being provided with aligned apertures. A cylindrical casing 10 has positioned therein front 12 and rear 14 insulator discs, a ferrite disc 18 and two ceramic discs 20, 22. The ceramic discs each have one major face provided with a plurality of areas 28 of a silver coating surrounding apertures in the discs, which areas 28 are electrically connected to connector terminals 24 by eyelet type springs 26. The opposite face of each disc 22, 20 is provided with an electrically conductive coating 30 which extends on to the annular side surface of the disc to make a ground connection with the casing 10. The coating 30 is interrupted around each of the apertures to form an uncoated area so that the terminal extending therethrough is not in contact with the conductive coating 30. Ferrite disc 18 which surrounds each of the terminals 34 provides the necessary filtering inductance. If a given terminal is not to be filtered an eyelet of insulating material may replace the electrically conductive eyelet.
Patent GB-382709-A (GB)
Title: Improvements in or relating to decorative rubber compositions
IPC: C09D5/28
Filed: 1931-09-15
Abstract: Decorative compositions, particularly intended for laying in situ for floorings &c., are made by incorporating pieces of coloured stone, metal, vulcanized rubber &c. in a paste of rubber latex and filler. In examples, latex of 70, 60, or 40 per cent concentration is mixed in the presence of a casein base cold water glue with vulcanizing materials, including ultra-accelerators, and with fillers such as china clay, asbestos powder, alumina, calcium hydroxide, fine sand, hydraulic cement, in total weight about equal to the latex, and the paste is mixed with about an equal weight of the decorative material in small irregular pieces of diameter 1/16 to 3/8 inch.  The composition is spread e.g. by a trowel, allowed to set and dry for say 24 to 48 hours, and the surface is then ground or polished.  The paste may include carbon black, pigments, dyes, and an anti-ager.
Patent GB-389518-A (GB)
Title: Improvements in the production of filaments and the like
IPC: D01F2/28
Filed: 1931-09-16
Abstract: The lustre of artificial filaments, yarns, ribbons, films, &c is reduced or modified by incorporating in the spinning solution an insoluble inorganic substance in a gelatinous or flocculent form, preferably such substances which are substantially white in colour and are obtained by precipitation from aqueous solutions of salts or compounds. Suitable inorganic substances are oxides, hydroxides and hydrated oxides of titanium, aluminium, zinc and tin, the basic zinc carbonates, and the phosphates, silicates, tungstates, borates, silicotungstates, tungsto-borates and phospho-tungstates of the alkaline-earth metals, aluminium, zinc, tin, lead and titanium. The inorganic substance is usually reduced to the necessary degree of fineness during the process of working; preliminary grinding may, however, be resorted to, but the material should preferably not be dried during this operation, thus it may be ground in the wet state or in the presence of water. The gelatinous or flocculent masses permeated with water, may be worked with acetone or other solvent of the spinning solution, or with a small portion of the spinning solution itself, to which may also be added dispersing agents, oils, etc.; or the inorganic substance may be worked with the cellulose acetate or other base of the spinning solution, or a liquid containing the inorganic substance may be mixed with a solution of cellulose acetate &c., for example, such a solution as is obtained directly in the production of the cellulose derivative, and the whole precipitated to separate a base to be afterwards used for the preparation of the spinning solution. Examples describe the preparation of acetone solutions of cellulose acetate containing aluminium hydroxide and basic zinc carbonate. The process is particularly applicable to cellulose acetate, cellulose nitrate, and other esters of cellulose, and to cellulose ethers, but it may also be for the preparation of dulled filaments &c. from viscose and other aqueous spinning solutions.  Specifications 338,490, [Class 2 (ii), Cellulose &c.], and 343,949 are referred to. According to the Provisional Specification, the inorganic substance may be produced in the presence of cellulose acetate &c. or in the spinning solution itself, the necessary reagents being brought together in aqueous solution, or in solution in organic solvents which may contain a proportion of water.
Patent GB-321496-A (GB)
Title: Improvements in or relating to means or an appliance for cleansing and disinfecting water or other liquids contained in tanks or cisterns or other receptacles employed for flushing and washing or cleansing purposes
IPC: C02F1/68
Filed: 1928-09-11
Abstract: 321,496. Dalby, J. Sept. 11, 1928. Disinfecting; disinfectants.-An appliance for disinfecting water or other liquids contained in flushing cisterns or other vessels comprises a receptacle formed in two portions, of which the upper hollow portion 7, Fig. 2, serves as a float, and the lower portion 8, which may be of any suitable shape, contains the disinfectant. The upper portion 7 is provided with a pendant rim 16 and with a socket 14 for the reception of the lower portion 8, which is perforated with graded rows of holes 9, 10, 11 through which water passes into the interior. The bottom 12 of the container 8 is also perforated. The disinfectant in powder form may be contained in bags 17, 18, 19, which are of thin woven material, of woven material lined with greaseproof paper, and of " Cellophane " respectively, so that the contents of the bags are dissolved successively in this order. The disinfectant may consist of an alkali such as freshly slaked lime or anhydrous sodium carbonate, chloride of lime, potassium permanganate, flour, borax, a pink aniline dye, and " pine aroma oil." In an alternative arrangement, the float portion of the appliance comprises a block 20 of cork or other suitable material, which is larger in diameter than the container 8, and is provided with a socket 21 therefor, and, if desired, a pendant rim 23. The container 8 may be filled in this case with powdered disinfectant, which is then compressed and covered with a perforated cardboard or other disc 24, or a compressed tablet of disinfectant of suitable shape may be employed.
Patent GB-599617-A (GB)
Title: Method of making electrically heated de-icing devices
IPC: B64D15/12
Filed: 1944-12-28
Abstract: 599,617. Electrically-heated deicing devices. NEWTON, E. P. (Scientific & Industrial Research, Honorary Advisory Council for). Dec. 28, 1944, No. 36031. [Class 39 (iii)] [Also in Group V] A method of forming a laminated de-icing electric heating pad 1 for aircraft propellers comprises mounting its component layers, formed of materials requiring curing or vulcanizing such as rubber or synthetic resins, on a propeller-shaped former 2, covering with a pre-formed flexible sheet 7 of rubber or metal over which is placed a rubber bag 8 having its edges sealed to the supporting, base 6 by bars 9 and clamps 10, the whole assembly then being subjected to heat and pressure as, for example, in a steam pressure chamber to shape and cure the pad. The shaped heating pad is bonded to the propeller with a neoprene cement cured in situ by passing electric current through the heating layer 4 which includes carbon black. Alternatively, the propeller itself may constitute the former, the curing and bonding operation being performed simultaneously. Specification 599,616 is referred to.
Patent GB-1131009-A (GB)
Title: Adjustable pedestal for elevated flooring
IPC: E04F15/024
Filed: 1967-06-06
Abstract: 1,131,009. Screw jacks. V. G. HAROLDSON. 6 June, 1967 [29 June, 1966], No. 26047/67. Heading B8J. A floor-level adjusting pedestal comprises a base-plate 11 with a threaded vertical rod 12 with a nut 14, and a head portion 18 for supporting the flooring (not shown) with a tube 19 for receiving the rod 12. The mating faces 16, 21 respectively of the nut 14 and the tube 19 are provided with recesses 22 and projections 24 to allow fine adjustment of the floor level and permit interlocking to prevent unwanted rotation after setting. Fig. 6 (not shown) illustrates an embodiment, inverted relative to that shown, wherein rotation of the floor-engaging member, when the floor has been removed, is prevented by a key in the base member engaging a longitudinal keyway in the floor-engaging member. The positions of the recesses and projections may be interchanged.
Patent GB-676352-A (GB)
Title: Apparatus for the compacting of divided material
IPC: B28B1/087
Filed: 1946-08-30
Abstract: 676,352. Vibrating divided materials. GODITIABOIS, A. Aug. 30, 1946 [April 10, 1945], No. 26083/46. Class 86 [Also in Group V] A vibrating table 1 for compacting divided material is oscillated in a vertical direction only by two directly geared and contra-rotating eccentrically mounted weights 12, 13 mounted under the table. The table is supported on dampers 4 consisting of alternate discs of rubber 5 and metal 6 which brake the descending movement of the table and partially brake the ascending movement.
Patent GB-689624-A (GB)
Title: An improved yarn conditioning process
IPC: D06B1/00
Filed: 1949-10-11
Abstract: 689,624. Proportional mixing appliances. MELLOR, R., and CHEETHAM, S. Jan. 3, 1951 [Oct. 11, 1949], No. 26125/49. Class 86 A process for conditioning yarn by applying a dilute solution of a wetting agent thereto, in which the quantity of wetting agent is controlled by passing water and a solution of wetting agent through a proportional pumping apparatus which ejects a proportioned mixture of the water and wetting agent solution on to the yarn. The proportional pumping apparatus comprises a cylinder 17 containing a double acting piston 18 interconnected with pistons 25, 28 in cylinders 14, 15. Water under pressure admitted from a supply 16 through a port 42 into the left-hand end of the cylinder 17 displaces the pistons and expels water from the right-hand end of the cylinder 17 through a port 42<SP>1</SP> into a port 44 where it mixes with wetting agent expelled from the cylinder 14 through a port 58, the resultant mixture flowing into an outlet 63. The piston 28 withdraws a charge of wetting agent from a reservoir 10. An adjustable stop is provided to control the stroke of the pistons and hence the volumetric displacement thereof. A change-over valve 33 is provided so that movement of the piston to the left causes the charge of water in the left-hand end of the cylinder 17 to be eiected and mixed with the wetting agent from the cvlinder 15, whilst the cylinder 14 is refilled from the reservoir 10.
Patent GB-1534448-A (GB)
Title: Abrasive product
IPC: B24D7/06
Filed: 1977-06-22
Abstract: 1534448 Abrasive tools R K WIAND 22 June 1977 26185/77 Heading B3D [Also in Divisions C4 and C7] An abrasive product is made by masking a backing member, which has a surface suitable for the application thereto of abrasive particles, whereby portions of the said surface are exposed, applying, to the exposed portions, non- ferromagnetic abrasive grit particles and bonding the particles to the surface by applying a metal coating thereto by either an electrolytic; electroless or vacuum deposition method, the abrasive grit and metal coating being applied substantially simultaneously by a substantially static-plating-technique.
Patent GB-204528-A (GB)
Title: Improvements in the manufacture, or production, of para-dichlor-benzene and chlor-anthraquinone
IPC: C07C46/00
Filed: 1922-09-29
Abstract: o-Dichlorbenzene, or a mixture thereof with p-dichlorbenzene, is heated with phthalic anhydride and aluminium chloride under certain conditions, and the resulting chlorbenzoylbenzoic acid heated with sulphuric acid to yield 2-chloranthraquinone, one chlorine atom being eliminated; the p-dichlorbenzene remains unchanged.  The phthalic anhydride and aluminium chloride are added to the dichlorbenzene, the mixture heated gradually to about 115 DEG  C., cooled, poured into water, and made alkaline; after separating unchanged dichlorbenzene the alkaline liquor is acidified, the precipitated chlor-benzoylbenzoic acid heated with sulphuric acid at 100 DEG -155 DEG  C., and the 2-chloranthraquinone precipitated by pouring into water; instead of isolating the chlorbenzoylbenzoic acid the reaction mixture may be added directly to the concentrated sulphuric acid.  An example of the method is given.
Patent GB-489010-A (GB)
Title: Improvements in and relating to luminairs
IPC: F21V5/00
Filed: 1936-09-30
Abstract: 489,010. Suspended lamps. HOLOPHANE, Ltd. Sept. 30, 1936, No. 26491. Void. Convention date, Oct. 2, 1935. [Class 75 (ii)] A light-transmitting globe or bowl, adapted to intercept light emitted from a source in a hemisphere, comprises a spherical portion surrounded by an annular dished portion which intercepts the more widely divergent light and is so shaped as to transmit and deviate said light towards the axis of the bowl. This bowl may be fitted with a reflecting cover of a similar shape so as to form an envelope in the shape of a sphere circumscribed by a projecting ring which is wedgeshaped in radial cross-section. The bowl may be made of diffusing glass, or it may be formed with refracting prisms, whilst the cover may be made of diffusing glass or it may be opaque or formed with reflecting prisms. The projecting ring may be horizontal or inclined, and the axis of the light source may be vertical or coincident with the optical axis of the envelope. The Figure shows a two-part prismatic glass envelope comprising spherical segments 74, 75 and projecting parts 76, 77, The segment 74 is formed on its inner or outer surface with concentric refracting prisms and on its outer or inner surface with radial or parallel prisms. The segment 75 is formed with reflecting prisms which return the rays to the light source 70. The section 76 is formed on its inner surface with concentric prisms of the refracting or single-reflection type, and on its outer surface with laterally spreading or like prisms. The section 77 is formed with concentric or radial prisms. Specification 412,053 is referred to.
Patent GB-442785-A (GB)
Title: Improvements relating to the backs of vehicle seats
IPC: B60N2/70
Filed: 1934-09-15
Abstract: 442,785. Seat - back cushions; seatadjustments. MORRIS COMMERCIAL CARS, Ltd., Adderley Park, Birmingham, and NUFFIELD, W. R. MORRIS, LORD, Cowley, Oxford. Sept. 15, 1934, No. 26503. [Classes 52 (ii) and 52 (iv)] A seat-back cushion is provided with a relatively hard bulge to fit the small of the user's back. In the case of a spring-upholstered cushion the springs at the bulge are stronger or stiffer than those in the rest of the cushion and in the case of a pneumatic cushion a separate air chamber 18 at this part of the back is inflated to a higher pressure than the other chamber or chambers which complete the back cushion. In order to adjust the height of the bulge the back cushion is provided with pegs adjustable in a series of holes in the supporting frame, or alternatively carries perforated plates 12, Fig. 2, to engage fixed pegs. Specifications 5706/91, [Class 52], and 284,501, [Class 52 (iv)], are referred to.
Patent GB-297579-A (GB)
Title: Improvements in fittings for key cases
IPC: A45C11/32
Filed: 1927-10-07
Abstract: 297,579. Latham, H. G., and Latham, H. J. Oct. 7, 1927. Key holders.-Each hook e for receiving a key is pivotally secured to a member d which is hinged to the attachment plate a provided with holes f for attachment to the usual purse or folding holder. The plates a has upstanding knuckles a<2> between which members d fit singly .and! are, secured by a single pin c. Each member d is bent from strip material to a, link form having a semicircular portion d<2> embracing the pin c and a. square end with an aperture d<3> through which the end of the hook shank is inserted, and which is then deformed to engage a groove e<2> in the hook to prevent its removal, but allow swivelling movement.
Patent GB-515606-A (GB)
Title: Improvements relating to the treatment of mineral materials by froth flotation
IPC: B03D1/004
Filed: 1938-09-12
Abstract: 515,606. Concentrating ores. SMIDTH & CO. AKTIESELSKABET, F. L. Sept. 12, 1938, No. 26560. Convention date, Sept. 10, 1937. [Class 82 (ii)] Minerals are separated from oxidized ores by froth flotation using as collecting agent an aqueous emulsion of a fatty acid stabilized by a sulphonated oil or fat or by a sulphonated fatty acid which acid occurs in a fat or oil either free or in the form of an ester. The emulsion, which may be made for example, with oleic acid or fish oil fatty acids, preferably has an oil to water ratio of between 1:10 and 1:30, and about 5-7 parts of sulphonated oil or acid are added for each 100 parts by weight of the fatty acid. Sulphonated products which may be used include sulphonated tea seed oil, castor oil, olive oil, cora oil, cod oil, neats foot oil. and sulphonated oleic acid. The process is of particular application in the flotation of calcite from argillaceous limestones, marls, chalks &c. to give a raw material suitable for use in cement manufacture; the concentration of the calcite being carried out with one of the collecting emulsions and with a frother, e.g. a mixture of aliphatic alcohol, boiling between about 152 and 162‹C., obtained with methanol by the catalytic hydrogenation of carbon oxides, the collecting agent being preferably added in stages. The frother may be emulsified with sulphonated alcohol. Reference is also made to the use as collectors of fatty acid emulsions stabilized by sulphonated alcohols. Specification 426,423 is referred to.
Patent GB-832635-A (GB)
Title: Apparatus for continuously drawing-off or conveying a section or like elongated member
IPC: B29C48/355
Filed: 1956-08-30
Abstract: 832,635. Drawing-off extruded products. REIFENHAUSER, H. Aug. 30, 1956 [Aug. 30, 1955], No. 26580/56. Class 87(2). [Also in Group XXX] Three endless conveyers 9 are carried by frames 12 so that they are spaced around extruded tube 4 to grip and convey the latter. As shown, frames 12 are carried by levers 15 which through levers 16 are connected by ring 17, which latter is rotated by lever 19 to adjust the simultaneous displacement of the conveyers to and from the conveyed tube 4. Alternatively the displacement may be made by handle 19 through rack-and-pinion 32, 33, bridge 31 and lever 36, Fig. 5, and by fluid pressure. The conveyers may be chains covered by rubber and are driven simultaneously by a common driving chain or gear-wheel.
Patent GB-504172-A (GB)
Title: Hand-controlled valve
IPC: F16K31/524
Filed: 1938-09-12
Abstract: 504,172. Interconnected valves; working valves for hydraulically-operated apparatus. STROUP, F. H. Sept. 12, 1938, No. 26594. [Classes 69 (ii) and 135] [Also in Group XXXIV] Fluid control valve mechanism comprises a pair of valves, which may be the supply and exhaust valves of a brake cylinder and which are adapted to be selectively operated by rotation or rocking movement of a member in two planes at right-angles to each other. A casing 1 has four chambers 2, 3, 4 and 5. Chambers 2, 5 are connected respectively to the source of pressure by means of a conduit 10, and to the atmosphere by an exhaust conduit 11. Chambers 3 and 4 intercommunicate by means of a passage 12 which is connected to a fluid motor through the conduit 13. The valves 15, 26 are normally closed by the springs 16, 27 but upon clockwise rotation, Fig. 4, of the hand lever 38 the cam surface 39 moves the stem 23 downwards and opens the valve 15, thus putting conduits 10 and 13 in communication through the chambers 2 and 3. Similarly an anticlockwise rotation of the lever 38 moves the stem 32 downwards and opens the valve 26. The valves 15, 26 may also be selectively operated by rocking the lever 38 in a plane perpendicular to the plane of rotation, when it pivots about one edge or the other of the fixed plate 34.