baber/WOPTO huggingface dataset:
Patent GB-1463857-A (GB)
Title: Reaction of nitric oxide with hydrogen
IPC: B01J10/00
Filed: 1974-08-07
Abstract: 1463857 Hydroxylamine salts INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 7 Aug 1974 [7 Aug 1973] 34735/74 Heading C1A A hydroxylamine salt is manufactured by reacting NO and H 2  in a bubble column in the presence of a suspension of a noble-metal catalyst in an acidic liquid. The NO and H 2  are fed to the lower end of the column; the suspension is fed to the upper end at such a rate that the larger gas bubbles formed rise to the upper end of the column (to form top gas) whilst the smaller bubbles formed are entrained in the suspension and thus carried to the lower end of the column. The suspension is removed from the lower end and the bubbles removed therefrom (to form bottom gas). The top gas and optionally part of the bottom gas are returned to the lower end of the column, the remainder of the bottom gas being discharged. Part of the removed suspension is returned to the upper part of the column, the rest of the suspension (containing hydroxylamine salt) being withdrawn.
Patent GB-379942-A (GB)
Title: Improvements in or relating to rubber mixes
IPC: C09C1/02
Filed: 1931-12-15
Abstract: A light-coloured compounding ingredient for rubber mixes which confers wear-resisting qualities to the rubber similar to that conferred by carbon black, is made by grinding inorganic earthy material with 0,1-10 per cent of an organic acid, or a salt or ester of an organic acid, preferably a fatty acid, in a ball mill having balls under 2 in. in diameter and comprising a volume at least 15 per cent of the volume of the mill, at a speed of at least 25 per cent of the critical speed, critical speed being defined as that at which centrifugal force on the balls is equal to that of gravity.  The time of grinding may vary from 10 mins. to 36 hours depending on the materials, size of mill, size and number of balls, and the speed, and is determined by making test mixes.  Examples are given showing the improvement in tensile strength, abrasion loss, and flexing qualities of mixes containing calcium carbonate ground with 1 per cent of stearic acid, and also with 3 per cent of benzoic acid, clay with 3:5 per cent of zinc stearate, and talc with 3,5 per cent of zinc stearate, on mixes containing the untreated fillers.
Patent GB-960328-A (GB)
Title: Optical elements and their method of manufacture
IPC: C04B35/553
Filed: 1962-09-12
Abstract: An optical element of lanthanum fluoride is made by placing pure microcrystalline lanthanum fluoride powder in a mould and exerting a pressure of 36,000-45,000 p.s.i. at a temperature of 825-875 DEG  C. for a sufficient period of time for the mass to become homogeneous, preferably having a density of at least 99% of the theoretical density of lanthanum fluoride, and thereafter releasing the pressure and cooling the mould.  The moulding is preferably effected in an inert atmosphere or in a vacuum, and the time may be 10-40 minutes. The powder may be placed in a metallic mounting located in the mould and having a coefficient of thermal expansion compatible with that of lanthanum fluoride.  The element transmits infra red, and may be of any desired configuration, for example a window or lens.
Patent GB-308638-A (GB)
Title: Improvements in or relating to telephone transmitters
IPC: H04R21/02
Filed: 1927-12-23
Abstract: 308,638. Aldridge, A. J., Barnes, E. J., and Foulger, E. Dec. 23, 1927. Microphones; diaplaragms.-A diaphragm for a telephone transmitter is constructed of two concave shells 1, 2 of thin light material placed concentrically with the concave sides facing each other and rigidly secured together, preferably under stress. on to a thin disc or annulus 7 of foil, surgical silk, paper or similar flexible material. As shown, the shells are conical but they may take the form of sections of the surface of a sphere, paraboloid &c. Stiff rings 9, 10 are cemented, spun or welded to the outer edge of the annulus 7 and clamped to the main case 11 of the transmitter, insulating rings 8, 8a being interposed if the annulus is of metal. The cones 1, 2 are clamped together on to the annulus either by means of a central bolt 3, nuts 4, 5 and a distance piece 6, as shown in Fig. 1. or by cementing the bolt 3a into a thin metal tube 22, the ends of which are spun over the tintumed lips 21 of the cones 1<a>, 2<a>, as shown in Fig. 2. In the construction of transmitter shown in Fig. 1, the rear end of the bolt 3 is secured to a flexible diaphragm 13 carrying a packing 15 of cloth &c. and the movable electrode 14. The fixed electrode 16 is in the form of a ring which is preferably perforated and is held midway of the granule chamber 12 by the insulating ring 17. The chamber 12 is closed by an insulating disc 18, felt washer 19 and cover 20. In a modified construction of transmitter, the diaphragm 13, packing 15 and movable electrode 14 are attached to the end of the granule chamber neaner the diaphragm 1, 2, the fixed electrode being mounted on the back of the chamber. According to the Provisional Specification, the central bolt may be arranged to hold the apices of the cones at such a distance apart that the rims do not quite come into contact. The rims may then be forced together by a clamp and one spun over the other, the flexible annulus being then attached only by adhesive.
Patent GB-873071-A (GB)
Title: Improvements in or relating to portable dosimeters
Inventor: BURNETT DONALD FENN
IPC: H01J47/04
Filed: 1957-11-08
Abstract: 873,071. Electroscopes. RANK PRECISION INDUSTRIES Ltd. Dec. 19, 1958 [Nov. 8, 1957], No. 34933/57, Class 37. In a portable doximeter of the fibre electrometer type, the ionization rate of the air within the ionization chamber is made substantially equal to that of free air by restricting, within the chamber, the use of material having an effective atomic number which is greater than that of free air and by compensating the presence of such material by the predominant use in the chamber of material having an effective atomic number which is less than that of free air. The ionization chamber is bounded by walls 1, 2 of conducting material whose effective atomic number is less than that of air, e.g. a plastic loaded with graphite, and an insulating wall 3, e.g. of polystyrene. Wall 3 supports a hollow conducting core 4, e.g. of the same material as walls 1, 2, the upper end of the core 4 having a recess 7 which forms a deflection electrode 8. A quartz fibre 5 which has been rendered conductive is attached at its ends to two short aluminium pillars 6 embedded in core 4.
Patent GB-1279456-A (GB)
Title: Method and apparatus for ringless spinning of fiber-polymer yarns
Inventor: BOBKOWICZ EMILIAN
IPC: D02G3/40
Filed: 1969-07-11
Abstract: 1279456 Composite staple fibre/thermoplastic polymer yarns E BOBKOWICZ and A J BOBKOWICZ 11 July 1969 [2 Oct 1968] 34951/69 Headings D1F and D1W A method of making spun yarns of composite staple fibre/thermoplastic polymer material comprises the steps:linearly supplying through feed-in rolls 11, 12 a continuous strand 10 of substantially consolidated composite staple fibre/thermoplastic polymer substrate; heating the strand within a fibre-restrictive zone 13 to a point at which the polymer substrate becomes plastic but below the melting point thereof; subjecting the strand within the fibre-restrictive zone 13 to a twisting torque to helically rearrange the fibres; cooling the twisted strand to coagulate the polymer; and linearly winding-up the obtained consolidated spun yarn on a collecting roll 19; the feed-in rolls 11, 12 and collecting roll 19 constituting two fixed points between which the twist is applied and substantially retained. The twist is preferably applied by means of a false twist device 16 and a further pinch point may be provided by a pair of nip rolls 17, 18 positioned downstream of the false twist device 16. The fibre-restrictive zone 13 is preferably formed by means of grooves provided in the heater, the grooves preferably being of V-shape. A plurality of strands 10 may be treated simultaneously in which case the feedin rolls 11, 12 are provided with circumferential grooves. The staple fibres and thermoplastic polymer substrate are preferably brought together immediately following extrusion of the polymer whereby adhesion between the fibres and the polymer occurs. The staple fibre material may be drafted and fed to the nip of rolls 11, 12 with the polymer being extruded directly into said nip.  In a further embodiment, the polymer material is extruded and heated during its passage to the nip rolls 11, 12 to maintain the material in a tacky state. The polymer material is preferably extruded through aligned orifices to form a curtain of filaments. The twisted composite material may be cooled on leaving the heated fibre-restrictive zone by means of an air jet immediately upstream of the false-twist device. The grooves forming the fibre-restrictive zone within the heater preferably narrow towards the exit end thereof to achieve a greater compaction of the material. Preferred materials for the thermoplastic polymer polyamides, polyolefins and acrylics.
Patent GB-282788-A (GB)
IPC: C08B7/00
Filed: 1927-12-28
Abstract: 282,788. Ruth-Aldo Co., Inc., (Assignees of Barthelemy, H. L.). Dec. 28, 1926, [Convention date]. Grant of Patent opposed. Cellulose acetates; preparatory treatment of celiulose.-For the manufacture of cellulose acetates, the cotton is first treated with hot acetic acid vapours while thoroughly agitating the mass, is allowed to cool, and is then mixed with an acetylating mixture containing a limited proportion of acetic anhydride, the remainder of the anhydride being added at intervals and after allowing equilibrium to be established between the cellulose ester and the bath after the preceding addition. The example refers to the use of sulphuric acid as the catalyst, but other catalysts may be employed; and the preparation of nitrocellulose acetates is referred to. Specifications 21628/01, 19107/06, 20977/11, and 13 96/14 are referred to. Reference has been directed by the Comptroller to Specification 263,938.
Patent GB-1375517-A (GB)
IPC: F15B13/043
Filed: 1973-07-23
Abstract: 1375517 Fluid-pressure servomotor systems MOOG Inc 23 July 1973 [14 June 1973] 35068/73 Heading G3P An electro-hydraulic servovalve having a torque motor 10 controlling a pair of flapper nozzles 99, 100, a spring feedback member 131 and an hydraulic spool moved in response to pressure in end chambers 91, 92 is characterized by a pair of wave tubes 140, 141, Fig. 3, connected respectively to the end chambers and having a length to provide anti-resonance for a characteristic frequency of the valve and so supress the tendency for the spool to oscillate. If the tubes 140, 141 are closed the length is equal to one quarter of the wavelength of the characteristic frequency or odd multiples thereof. If open, the length is one half the wavelength or multiples thereof. More than one tube may be formed so as to supress other frequencies.
Patent GB-761668-A (GB)
Title: Process for aftertreating cellulose materials dyed with substantive dyestuffs
Filed: 1953-12-16
Abstract: The fastness of dyeings with substantive dyestuffs on cellulose materials such as paper or textiles is improved by aftertreating with an aqueous solution containing a quaternary ammonium compound of high molecular weight which is free from ether groups, e.g. a quaternized peralkylated polyamine, and a water-soluble sulphate, e.g. sodium, potassium or ammonium sulphate.  The water-soluble sulphates may be prepared in situ during the preparation of the quaternary ammonium compounds, in which case they are retained in solution.  Examples are given.
Patent GB-1335430-A (GB)
Title: Production of stiffening interlining for garments
IPC: D06M17/00
Filed: 1971-07-27
Abstract: 1335430 Laminated interlinings for garments KUFNER TEXTILWERKE KG 27 July 1971 [7 Dec 1970] 35221/71 Heading B5N Stiffening interlinings for garments are produced by cutting or stamping the interlining or portion thereof from a web of material having differing degrees of thickness and stiffness in differing areas by virtue of being composed of a plurality of layers connected to each other but only partially overlying each other, the cutting or stamping being carried out in such a manner that the degree of stiffness of a particular area of the material corresponds to the degree of stiffness required in that portion of the interlining. The layers of material, which may be the same or different, may be woven, non-woven or knitted fabrics or foamed sheet materials. The layers may be adhered together by means of a network of fine spots of adhesive, e.g. of polymethacrylates or polyurethanes. In Fig. 1a heat-sealable adhesive 2 is applied in the form of spots to the lower side of layer 1 to permit the web to be adhesively secured to the top layer fabric of a garment, and layers 3 and 6 are adhered to layer 1 by spots of adhesive 4 and 7. Inner edges 5 and 8 may rest loosely on the lower layer or may be stitched to the lower layer. In an alternative construction the upper layers extend over the central area of the lower layer. The base layer may be a woven material having greater stiffness in the weft than in the warp.
Patent GB-171912-A (GB)
Title: Novel or improved apparatus for use in connection with a game of skill
IPC: A63F9/02
Filed: 1920-12-15
Abstract: 171,912. Mills, H., and Goodwin, P. J. Dec. 15, 1920. No Patent granted (Sealing fee not paid). Parlour games; games of chance.-Relates to apparatus of the kind wherein the players throw rings on to pegs projecting from a rotatable board mounted on a fixed board, and consists in providing the fixed board with a series of numerals or other markings adapted to register with a mark or peg on the rotatable board. The apparatus may be used as a roulette device. The rotatable board a bearing pegs a' is pivoted on a bar d secured to the back of the stationary board c which bears a series of numerals 1 to 12. The weight of a ring thrown on to one of the pegs a<1> causes the board a to rotate, and the position of a mark a<2>, or of the peg, relative to the outer ring of numerals indicates the score. The back of the rotatable board may be marked with colours a<3>, Fig. 3, so that the apparatus may be used as a roulette device. For this purpose the apparatus stands on the pegs a<1> and the outer board c is rotated, the bar d serving as a pointer to register with the colours a<3>.
Patent GB-887610-A (GB)
Title: Improvements in and relating to surgical pads and method of making the same
IPC: A61F13/06
Filed: 1959-10-20
Abstract: 887,610. Surgical protective pads. SCHOLL MFG. CO. Ltd. Oct. 20, 1959 [Oct. 21, 1958], No. 35579/59. Class 81 (2). A surgical pad comprises a cushion body with a flat underface mounted on a thermoplastic film and a curved upper face covered by a thermoplastic film, the two films being secured together around the body. As shown, Fig. 6, a surgical pad is formed by laying a film 2 of thermoplastic material such as polyvinyl chloride with a pressure-sensitive adhesive surface 3 on a facing sheet 1 having a release coat which will not be damaged by heat-sealing of the layers of the pad. Suitable material is rubber impregnated paper treated with a sodium sulphate wetting agent and coated with a nitro-cellulose lacquer. A cushion layer 4 of polyvinyl chloride foam is heat-sealed to the film 2 by electronic die means which shapes the upper surface as shown, Fig. 6. A film 11 shaped to fit over the cushion body 4 but of slightly less height is heat-sealed to the film 2, an aperture 13 being formed in the pad either before or after the application of the film 11. In an alternative embodiment, the aperture 13a is formed off centre or the pad may be as shown in Fig. 11, heat-sealed around the entire periphery.
Patent GB-931561-A (GB)
Title: Improvements in and relating to objective lenses
IPC: G02B9/34
Filed: 1959-10-20
Abstract: 931,561. Optical objectives. FARRAND OPTICAL CO. Inc. Oct. 20, 1959 [Oct. 20, 1958], No. 35592/59. Class 97 (1). An objective of modified Gaussian type comprises from longer conjugate side to shorter conjugate side, a positive doublet consisting of elements of opposite sign and of meniscus form concave towards the stop, followed by a negative meniscus component consisting of a single element also concave towards the stop, and behind the stop, and bounding the stop space a negative doublet also consisting of elements of opposite sign and of meniscus form concave to the stop followed by a positive rearmost component consisting of a single element having surfaces of unequal curvatures in which the numerical value of the sum of the powers of the first and last surfaces in front of the stop and the numerical value of the sum of the powers of the first and last surfaces behind the stop both lie between 1.35# and 1.9# wherein # is the equivalent power of the complete objective, and in which the numerical value of the difference between the power of the front surface of tl e front negative meniscus component immediately preceding the stop and the power of the rear surface of the negative meniscus component immediately following the stop lies between 0.1# and 0.48#. In addition, the numerical value of the difference between the power of the rear surface of the negative meniscus component immediately preceding the stop and the power of the front surface of the negative meniscus component immediately following the stop lies between 0.08f and 0.24f. Preferably, the sum of the radii of the front surface of the front doublet and of the rear surface of the rear component is preferably between 0.85f and 3.5 times the diameter of the entrance pupil. The front doublet comprises elements of opposite sign which may be cemented together or slightly spaced. Optical data are given for one example of the objective illustrated and for four examples of objectives in which the two elements of each doublet are cemented together. Specification 480,643, U.S.A. Specification 2,748,656 and French Specification 1,101,508 are referred to.
Patent GB-411905-A (GB)
Title: Improvements in and connected with chicken brooders
IPC: A01K31/19
Filed: 1932-12-16
Abstract: 411,905. Rearing-appliances. UTTLEY, INGHAM, & CO., Ltd., and GREENWOOD, J., Hebble End, Hebden Bridge, Yorkshire. Dec. 16, 1932, No. 35643. [Class 5 (ii).] A brooder comprises a chicken compartment with removable apertured plates or doors k, removable troughs m for food or water, a removable reticulated floor and droppings tray h and a compartment a<1> for a heating oil lamp a, a pipe d being provided to liberate fume free hot air from the lamp compartment into the chicken compartment and means a<3> serving to deliver the products of combustion from the lamp into an enclosed flue structure above the chicken compartment whence they pass to atmosphere. The compartment a<1> comprises a slidable door, transparent window, heat insulation, adjustable air inlet means and an outlet pipe a<5> provided with a thermostatically controlled cover a<6> : the products of combustion from the lamp pass through the telescopic tube a<3> into the flue 1, thence through apertures c<1> into the flue 2 which is insulated at e<1> and thence through the channel c<2> and outlet f to atmosphere. The plates k comprise bent strips k<2> engaging the inner edges of the troughs m and members j<1> supporting the floor j and are secured in position by pivoted catches k<3>, the troughs m being hung on projections on the uprights g. The brooder may be provided with metal corner pieces on its roof e to receive the legs of another brooder.
Patent GB-972010-A (GB)
Title: Method of producing cyclohexane derivatives
IPC: C08G18/32
Filed: 1962-09-19
Abstract: Compounds of the formula <FORM:0972010/C1/1> in which the R's denote identical or different alkyl groups and X denotes an amino or hydroxyl group, are prepared from 3-cyano-3,5,5-trialkylcyclohexanones by catalytic hydrogenation in the presence of ammonia. The reaction may be effected at 50-150 DEG C. under a partial pressure of hydrogen of at least 50 atm. and optionally in the presence of a solvent. The use of up to 10 mols. of ammonia per mol. of cyanocyclohexanone derivative favours the production of products in which X is an hydroxyl group. Higher relative proportions of ammonia promote the production of products in which X is an amino group.  The preferred catalyst is cobalt deposited on kieselguhr. Examples are given of the reduction of 3-cyano-3,5,5-trimethylcyclohexanone.  3-Cyano-3, 5, 5-trimethylcyclohexanone used as the starting material in the examples, is prepared from isophorone and hydrocyanic acid by (1) adding acetic acid gradually to an aqueous methanolic mixture of isophorone and sodium cyanide, or (2) adding hydrocyanic acid dropwise at 125-275 DEG C. to a mixture of isophorone and alkali, or (3) passing isophorone and hydrocyanic acid at 50-350 DEG C. over an alkaline catalyst deposited on a solid carrier.
Patent GB-770565-A (GB)
Title: Improvements in or relating to process for preparing distarch phosphate and productscontaining the same
IPC: C08B31/00
Filed: 1954-12-10
Abstract: Distarch phosphate is made by treating unswollen granule starch in an aqueous slurry with a water soluble metaphosphate or polymetaphosphate at a temperature sufficiently low to maintain the starch in the unswollen state during esterification, the amount of metaphosphate or polymetaphosphate being at least 0.01 per cent of the dry weight of the starch.  The reaction is suitably carried out by heating an aqueous slurry of the starch, which may be a raw starch or a derivative thereof such as an oxidized starch, starch ether or a starch ester including monostarch phosphate with the water soluble metaphosphate, e.g. sodium metaphosphate, sodium trimetaphosphate or sodium hexametaphosphate, at a temperature of 40-50 DEG  C., the sodium ion concentration being maintained at at least 0.4 mol. per litre and the pH at at least 9.0.  After the reaction the system may be neutralized and the product is filtered, washed and dried. Examples are given.ALSO:Distarch phosphate made by treating an aqueous slurry of unswollen granule starch, e.g. raw maize, wheat, tapioca or sorghum starch, with a water-soluble metaphosphate or polymetaphosphate at a temperature sufficiently low to maintain the starch in the unswollen granule state during esterification, the amount of water-soluble metaphosphate or polymetaphosphate being at least 0.01 per cent of the dry weight of the starch, is used as a thickening agent in fruit pies, in gum confections such as gum drops or orange slices, or in the canning of cream style corn.  A cherry pie filling composition is made by adding an aqueous slurry of a distarch phosphate from waxy sorghum starch to a cooked mixture of drained cherries, cherry juice, sucrose, maize syrup and artificial colouring, heating the mixture, pouring it, while hot, into cans, and at once sealing the cans.
Patent GB-417747-A (GB)
Title: Improvements in or relating to electric discharge lamps
IPC: G09F13/26
Filed: 1933-12-20
Abstract: 417,747. Discharge lamps. PATENTTREUHAND - GES. FUR ELEKTRISCHE GLUHLAMPEN, 11, Ehrenberg. strasse, Berlin. Dec. 20, 1933, No. 35896. Convention date, Dec. 21, 1932. [Class 39 (i).] A portable electric standard lamp for decoration and advertising comprises two differently coloured, bent discharge tubes 18, 19 freely extending from a supporting pedestal 1 and connected in series at 16 in a metal or insulating case 10 supported from the tubes. The pedestal may contain a strayfield transformer 13, or, if the discharge tubes have incandescent electrodes so that they ignite at mains voltage, may contain only resistances. One tube may be filled with neon giving red light and the other with neon, argon and mercury giving blue light, or green light in combination with a brown or green glass tube. The tubes 18, 19 may be formed from a single tube by a longitudinal, spirally twisted partition as shown.