baber/WOPTO huggingface dataset:
Patent GB-661146-A (GB)
Title: Process for the production of alkali metal salts of nitrilotriacetic acid
Filed: 1949-09-30
Abstract: Alkali metal salts of nitrilotriacetic acid are prepared by reacting alkali metal cyanides with ammonia and formaldehyde in an aqueous alkaline medium under reflux or under pressure, removing ammonia after the reaction and reacting the resulting liquid with an alkali metal cyanide and formaldehyde while heating and removing the ammonia formed during this stage of the reaction. The first stage of the reaction is carried out either in a closed vessel or under reflux and the reaction is preferably carried out at an elevated temperature. The amount of ammonia used may be between 0.5 and 3 molecular proportions with regard to one molecular proportion of the alkali metal cyanide or formaldehyde. In the first stage alkali metal salts of amino-, mono-, di- and tri-acetic acids are formed and the resulting reaction mixture is freed from ammonia.  The solution freed from ammonia is then reacted with further amounts of alkali metal cyanide and formaldehyde in such a way that the ammonia formed is removed as quickly as possible.  In the examples: (a) the sodium salt of nitrilotriacetic acid is prepared by reacting together ammonia, formaldehyde and sodium cyanide, and (b) the potassium salt of nitrilotriacetic acid is prepared by reacting together ammonia, formaldehyde and potassium cyanide.
Patent GB-672604-A (GB)
Title: Device for tracing short circuits in electrical apparatus
IPC: G01R31/00
Filed: 1950-10-16
Abstract: 672,604. Electric tests. PREH, A., and PREH, W., (trading as PREH, ELECTROFEINMECHANISCHE WERKE). Oct. 16, 1950 [Jan. 23, 1950], No. 25191/50. Class 37. Apparatus for tracing a short-circuit in equipment supplied with cartridge-type fuses comprises a plug 1 adapted to replace the fuse, attached by leads 12, 13 to a lamp 14 and buzzer 15, so that the existence of a shortcircuit causes the operation of a visual and audible alarm. The plug 1 has two connecting ends 4, 5 for different size fuses, connected in parallel through the end-caps 7, 7 and 6, 6. A change-over switch 16 is supplied on the alarm container so that on low volts the lamp 14 and buzzer 15 are in parallel, but on high volts the lamp is fed through the intermittent contacts 20, 21 of the buzzer.
Patent GB-410129-A (GB)
Title: Improvements in or relating to calculating and like apparatus
Filed: 1932-09-09
Abstract: 410,129. Calculating - apparatus. VALTAT, R. L. A., 30, Place Denfert Rochereau, Paris. Sept. 9, 1932, No. 25205. Convention date, Sept. 12, 1931. [Class 106 (i).] Calculations are performed by first converting the items, factors, &c. from the decimal system into the binary (or ternary) notation, performing the calculation in this system and then translating the result into the decimal system. The calculating devices may consequently be of a simplified character, the counting elements consisting only of parts occupying an operative position or a non- operative position to represent unity or nought respectively. Fig. 1 shows electrical or other connections from a decimal keyboard A to a binary counter B which therefore receives as binary quantities the decimal numbers set up at A. In another form the keys set up the items in setting devices allotted respectively to the several decimal denominations and means are provided for summing the binary values standing on these devices. The means for responding to the settings may be wheels of the Odhner type, the teeth being projected or not according as the denomination concerned contains unity or nothing. Thus Fig. 3 shows diagrammatically a system of nine such setting means over which toothed wheels such as b1, b2 &c. may be caused to travel to sum the values, by columns, in the counter C, consequent transfers being allowed for by arranging the wheels b1, b2, &c. in echelon. For re-converting the binary results, each binary denomination may control a corresponding plate constructed with columns of teeth as in Fig. 5 (representing the decimal equivalent of 2<20>) and over which a summing counter may be drawn to take off the decimal values. Alternatively the binary denominational elements may directly control the elements of an ordinary counter. The processes of multiplication, division and extraction of square roots are described as regards their particular application to the binary calculating-means. Fig. 6 shows diagrammatically the manner in which multiplication may be performed. The two factors are set up in binary counters at A and B and by electrical or other means the significant digits at A prepare the raising of teeth in oblique lines extending therefrom while the digits at B render the raising effective in the horizontal lines. The product at C is obtained by summing the raised teeth as in Fig. 3. The invention may also be utilized in statistical apparatus the cards being punched in holes allotted respectively to the various powers of 2 as shown on the right in Fig. 7. The Specification as open to inspection under Sect. 91 also includes extension of the invention to the ternary system, 2 being represented as the base minus unity thus enabling unity to signify both values 1 and 2 according as it is positive or negative. This subject-matter does not appear in the Specification as accepted.
Patent GB-892247-A (GB)
Title: Art painting kit
IPC: G09B11/06
Filed: 1960-07-20
Abstract: 892,247. Teaching painting. BROWN, R. E., and BROWN, F. C. July 20, 1960, No. 25226/60. Class 11  An aid for teaching painting comprises a transparent work sheet 10 having on its back side or surface 12 a plurality of linear indicia 14 to define areas to have different colours and on the other side numerical indicia 18 in washable ink or paint to indicate the appropriate colour. The sheet 10 is secured to a backing sheet 20 preferably of white stiff cardboard bearing a key 26 of the colours represented by the numerical indicia. After painting the sheet 10 is removed and the numerals 18 are washed off while the lines 14 remain and are sufficiently thick to obscure minor inaccuracy in painting. The sheet 10 may be tinted thus making it somewhat translucent.
Patent GB-246221-A (GB)
Title: Improvements relating to the preparation of dough
IPC: A21C1/00
Filed: 1924-10-23
Abstract: 246,221. Pointon, J. E., Baker Perkins, Ltd., and Brookes. S. Oct. 23, 1924. Fixed-chamber apparatus, automatic control of flow of and varying quantity measured in. - Relates to apparatus of the kind in which a tank supplied with water at the required temperature under thermostatic or other control is combined with a measuring vessel to which water from the tank is admitted under adjustable control so that the supply is cut off automatically when the required charge has passed into the measuring vessel, and consists in combining such apparatus with apparatus for use in the preparation of dough. In Fig. 1 the measuring chamber b is arranged inside the supply tank a with which it communicates through a double-beat valve c. The valve opens under the head of water in the tank a and the vessel b fills until a pivoted float lever d is raised when a weight or spring gives a quick final movement to the float lever and through a sliding rod and pivoted lever e closes the valve c. The float lever is vertically adjustable in a guide rod g to vary the quantity of water in the vessel b. The discharge valve i leads to a distributing chamber having branch connections to mixing chambers k, l. Each chamber is provided with a stirrer m rotated by a motor n. The chambers k, j, m and their appurtenances are mounted on a wheeled carriage for traversing on a runway o. The float lever d is returned by operating a hand chain q. In a modified construction, Fig. 2, the chamber b communicates with the chamber a through a pipe 1 fitted with a two-way valve 2. In one position of the valve the chambers communicate, and in the other position communication is cut off and the chamber b opened to discharge. The tank a is provided with a float r connected by a wire to the lever of a relay valve v employed with a known type of spring-loaded diaphragm valve w. The latter is closed when the float rises to a predetermined height which is regulated by moving the hand wheel x to rotate a nut in which works a screwed part of the stem u supporting the guide pulleys t for the wire s. An index y and scale z indicates the adjustment. In a further frame for use with a portable kneading trough the chambers may be fitted with screw-operated pistons to vary the capacity.
Patent GB-217119-A (GB)
Title: Improvements in or relating to foot cycles or scooters
IPC: B62K3/00
Filed: 1923-10-10
Abstract: 217,119. Atkins, E. Oct. 10, 1923. Font cycles.-In scooters of the type in which the steering-pillar 5 is adapted to fold against the frame 4, the pivotal connection consists of a bar 9 secured to the frame 4 and pivoted at 11 between the arms of a forked member 10 on the pillar 5, the joint being locked when the scooter is in use by a sliding collar 12 engaging the member 10 and an upward extension of the bar 9. When the scooter is collapsed the rear wheel 8 may fit between the bars of the pillar 5.
Patent GB-273542-A (GB)
Title: Improvements in internal combustion motors
IPC: F01B3/08
Filed: 1926-10-11
Abstract: 273,542. Schieffelin, S. Oct. 11, 1926. Pistons, cooling.-In a double-acting internalcombustion engine cooled lubricating oil flows from a cooler 40, Fig. 3, to a bore 42 in the centre of the shaft. Radial passages 43, Fig. 1, pass from this bore through the shaft and blocks 45 fixed on the shaft; the oil is flung out of these radial passage by centrifugal force into the interior of the piston to cool it and to lubricate the cylinder. The oil is returned through the collector 48 and strainer 49. If desired to air cool the piston interior, a hood may be used to cause a circulation of air therein.
Patent GB-1278326-A (GB)
Title: Cable insulation
IPC: D06N3/04
Filed: 1969-07-08
Abstract: 1278326 Insulating cables FELTEN & GUILLEAUME CARLSWERK AG 8 July 1969 [8 July 1968] 25308/69 Heading H1A A high voltage electrical cable is insulated with an unlinked and electrically insulative solid olefin polymer containing about 5% carbon black by weight as a voltage stabilizer. Carbon black of particle size less than 300 Š units is distributed uniformly in the polymer used as the primary insulation for cables rated above 30 KV. The addition of carbon black is stated to improve the resistance to glow discharge and insulation breakdown.
Patent GB-532569-A (GB)
Title: Improvements in splash guards for motor vehicles
IPC: B62D25/18
Filed: 1939-09-07
Abstract: 532,569. Mudguards. WILSON, G. H. Sept. 7, 1939, No. 25372. Convention date, Oct. 4, 1938. [Class 136 (i)] A mudguard for preventing mud being splashed up by the front wheels of a motorvehicle in the space between the usual wings or mudguards, comprises one or more plates extending forwardly from the front of the body from one side to the other, with or without downwardly and rearwardly extending shields or flaps. As shown in Figs. 1 and 5, two main intercepting plates F, F' extend across the body front with their rear edges fitting against it, their front edges engaging the back of the bumper bar D. The plates F, F<SP>1</SP> may be secured at S by clamping-plates and bolts to arms E, E<SP>1</SP> supporting the bumper D ; or each plate F, F<SP>1</SP> may be pivoted to the bumper &c. Each plate F, F<SP>1</SP> is provided on the underside with a transverse wing L and a rearwardly-extending fin M, to which parts are fitted (e.g. by bayonet fastenings) removable and replaceable flaps or curtains L<SP>1</SP>, N of rubber &c. extending almost to the ground.
Patent GB-1126797-A (GB)
Title: Improvements in or relating to silver-dye-bleach elements
IPC: G03C1/825
Filed: 1966-06-07
Abstract: 1,126,797. Photographic silver-dye-bleach paper. FUJI SHASHIN FILM K.K. June 7, 1966 [June 28, 1965], No. 25381/66. Heading G2C. [Also in Division D2] A photographic, light-sensitive silver-dyebleach colour paper contains in the paper support or in a subbing or baryta layer thereon, silver particles, colliodal silver or exposed silver halide. Stain due to dye adhering to the paper fibres is eliminated and when silver is used halation is prevented. The silver material may be incorporated in the paper during papermaking or may be applied to the paper in a size, or may be incorporated in a baryta solution.
Patent GB-953960-A (GB)
Title: Improvements in or relating to the production of compressed therapeutic tablets
IPC: A61K9/20
Filed: 1962-07-03
Abstract: Therapeutic tablets are prepared by mixing a non granulated crystalline or powdered therapeutic material with not less than about 20% by weight based on the weight of the total composition of one or more calcium salts of phosphoric acid at least about 25% by weight thereof having a particle size greater than 125 microns, and forming the mixture into tablets by compression. One or more lubricants, fillers and/or disintegrating agents may be included in the mixture and the therapeutic material may be added to the phosphate in the form of a solution, the solvent being subsequently removed by evaporation.  Examples refer to the preparation of tablets comprising 9a -fluoro-16a -hydroxyprednisolone, 3 - (1 - piperidyl) - 1 - phenyl - 1-cyclohexyl - 1 - propanol hydrochloride, N,N-dimethyl - N1 - (2 - pyridyl) - N1 - (5 - chloro - 2-thenyl) ethylenediamine citrate, digitalis powder, 3 - sulphanilamido - 6 - methoxy-pyridazine, 3 - diethylamino - 1 - cyclohexyl - 1-phenyl - 1 - propanol hydrochloride and d - 1-phenyl-2-aminopropane sulphate.
Patent GB-690467-A (GB)
Title: Device for controlling light intensity
IPC: G02B5/30
Filed: 1951-10-31
Abstract: 690,467. Polarizing apparatus. BRUSH DEVELOPMENT CO. Oct. 31, 1951 [Dec. 11, 1950], No. 25456/51. Drawings to Specification. Class 97 (i). [Also in Group XL (b)] An optical rotation plate, i.e. a plate for rotating through 90 degrees the polarization of plane polarized light incident upon the plate, comprises a plurality of optical retardation plates, i.e. a plate which provides optical paths of different lengths to plane polarized light incident thereon according as it is polarized parallel to one or other of two predetermined axes in the plate. The optical retardation plates may comprise mica sheets and the simplest form of rotator comprises two such half-wave retardation plates arranged in tandem with their principal retardation directions rotated by 45 degrees with respect to each other.
Patent GB-338564-A (GB)
Title: Improvements in or relating to machines for winding yarn, thread, wire or like materials
IPC: B65H54/32
Filed: 1929-08-21
Abstract: 338,564. Universal Winding Co., (Assignees of Swanson, E. R.). Nov. 3, 1923, [Convention date]. Winding-machines; threadguides.-A drum winding-machine for cops, bobbins, packages, coils, &c. of yarn, thread, wire, &c. has a cam 55 mounted to tilt about an axis crossing that of its rotation to vary the throw of the cam and thus of the length of traverse of the thread guide. The variation may be automatic, and effected according to the diameter of the yarn package to produce packages conical at both ends, or it may be manual to produce packages having layers of windings of equal, predetermined length. The cop C is wound by the drum 20 on to a tube T rotatably mounted in gudgeons 25 which are held by springs 35, Fig. 2, in bushes 29 in which they are positioned eccentrically to allow adjustment of the cop axis, the brakes being carried by arms 32 pivoted at 33 on the machine frame. As the cop builds, these arms are raised and operate mechanism for tilting the cam 55 which is roated on a stationary shaft 7 by the gearing shown, and pivotally mounted at 66, Fig. 3. In the form shown the tilting is effected by a rod 105 adjustably screwed to one of the arms 32 and bushed in a lug 96 of a plate 95 with ears 98 working in grooves 99. The plate 95 engages a peripheral groove in a sleeve 90 on the cam shaft 7, the sleeve being formed with an arm 91 having holes 92 for a bolt 82 which connects it with a slotted arm 84 on the cam-rim. For a given movement of the sleeve 90 the amount of tilt imparted to the cam 55 varies according to which of the holes 92 the bolt 82 is in, the mechanism thus constituting a means of controlling the angle of the conical ends of the cop C. A shaped roller 60 engaging the cam groove 59 is mounted on a spring plunger 61 on a carriage 41 on guide rails 42, 43 to which is pivoted at 47 the thread guide arm 40, carrying a helical wire guide 52 and a porcelain button 50 which rests on the cop surface and moves outwards as the cop increases in size. Manual variation of the cam tilt is effected by changing the bolt 82 to a different hole, the sleeve 90 being substituted by one which is rotatable on the shaft 7, and which -is adjustably positioned thereon.
Patent GB-1390833-A (GB)
Title: Offset cylinders
IPC: B41N10/02
Filed: 1972-06-01
Abstract: 1390833 Printing apparatus RICOH KK 1 June 1972 [7 June 1971] 25572/72 Heading B6C An offset cylinder co-operating with an impression cylinder has a surface of a polymer with a critical surface tension of 25 dyne/cm. or less, suitably supported by a body of aluminium, copper, brass, iron, stainless steel, a synthetic resin such as a phenolic resin, an epoxy resin, an acrylic resin, a melamine resin, a polyester resin or an acrylonitrile/butadiene/styrene copolymer resin, or by rubber-blanketed cylinder. The surface polymer may be polypropylene, poly-dimethylsiloxane or a fluorine-containing resin, examples of which are listed. After printing, the offset cylinder can be cleaned by passing sheets of paper between it and the impression cylinder with which it co-operates.
Patent GB-738660-A (GB)
Title: Improvements in and relating to oil-modified acidic polyester-ethoxyline resinous reaction products
IPC: C08L63/00
Filed: 1952-10-13
Abstract: An epoxide resin prepared from a polyhydric phenol or alcohol and an epihalohydrin and of the type described in Specifications 518,057, 579,698 or 680,997, and available under the Trade Name "Epon" and Registered Trade Mark "Araldite," is mixed with an acidic oil-modified polyester having an acid number of 20-200 and prepared by reacting a tri- or tetrahydric alcohol with a mixture of organic acids including at least one long-chain fatty acid or other acidic oily modifying substance in sufficient amount to esterify not more than one hydroxyl group of a trihydric alcohol or not more than two hydroxyl groups of a tetrahydric alcohol, together with an excess over the equivalent amount of a dicarboxylic acid free from polymerizable unsaturation.  The composition stores well and is heat-hardenable.  It may be partially reacted and stored in solution, e.g. in toluene or xylene.  Suitable ingredients for preparing the polyesters are glycerine, pentaerythritol; succinic, adipic, sebacic, phthalic, isophthalic, terephthalic or chlorinated phthalic acid; drying, semi-drying or non-drying oils or fatty acids prepared therefrom, or their partial glycerides, e.g. castor oil, dehydrated castor oil, linseed oil, coconut oil fatty acids or oily substances described in Specification 635,286.  Preferably a preformed polyhydric alcohol partial ester of a long-chain fatty acid is reacted with the dicarboxylic acid or anhydride but the three kinds of ingredients may be heated together.  The preferred proportion of polyester used is 5-70 per cent of the total weight of mixed resins, and will depend on the equivalent weight of the epoxide resin.  The products are coating compositions especially for metals, e.g. metal conductors of copper, aluminium or silver. Porous materials, e.g. glass fibre cloth or asbestos cloth, may be coated and impregnated to form insulating materials.  Mixed with fillers, e.g. lithopone, ferric oxide, wood flour, asbestos, glass fibres or TiO2 the resins give moulding compositions. They may also be used for impregnating and laminating sheets of paper, cloth, glass fibre cloth or asbestos cloth, and are suitable as casting or potting materials.  Curing of the compositions may be helped by addition of metal salts of organic acids, e.g. lead octoate, or naphthenate, or cobalt or manganese naphthenate.  Mixed metal driers may be used.  In the example 1 mol. of glyceryl monoricinoleate was heated at 220 DEG  C. with 1.7 mol. phthalic anhydride to yield a polyester with an acid number of 161 and carbonyl equivalent of 350, which was mixed and heated with an "Epon" resin.  The cooled product was dissolved in toluene, to yield a solution which gave tough, flexible, adherent coatings when baked on aluminium.
Patent GB-1367987-A (GB)
Title: Hand looms
IPC: D03D29/00
Filed: 1972-06-01
Abstract: 1367987 Hand looms; shuttles CRAFTOOL CO Inc 1 June 1972 [2 June 1971] 25585/72 Heading D1E In a hand loom, warp is formed from a continuous thread which is alternately looped around a lower warp supporting bar 68, up and around the apex 50 of one of a series of V-shaped wire members 48 attached to a crossbar 44, down and around the bottom bar 68 again, and up and around a portion 54 of the member 48 projecting above the point of attachment thereof to the bar 44, and so on. Shedding is performed by pivoting the Crossbar 44, Fig. 3, so that the wraps looped around the apices 50 move alternately to one side and' then to the other of those looped around portions 54. The loom is arranged on a vertical frame which is telescopically adjustable to alter the distance between bars'44 and 68. The warp is tensioned by an elastic member 70 which has caps 74 which fit over the ends of the bar 68, and a loop 72 which is stretched and fastened on a projection 66 on an extension 62 of the frame. The wrap is initially wound at the lower end around a post 64 on the frame, as shown in Fig. 3, the bar 68 then being passed between the sheets so that the warp can be slid off the post 64 and spaced along bar 68. Reeds, Fig. 14. A reed 85 having angled dents is provided. The shedding pattern may be varied by attaching a template 107, Fig. 14, or wire (107) Fig. 9 (not shown) to the front of the reed or the wire members 48 such that certain of the warps in the sheet passing over projections 54 are shed with those looped around the apices 50 when bar 55 pivots in one direction (Fig. 12, not shown). Shuttles, Figs. 4 and 6. The shuttle 96 is formed from a blank 100, e.g. of plastics material, which is folded about bend lines to a Z-shaped cross-section, Fig. 6. Slits 105 are provided at the ends of the central section about which yarn is wound, to retain the weft end.
Patent GB-155688-A (GB)
Title: Improvements in gas cooking and heating stoves or ranges
IPC: F24C3/04
Filed: 1919-10-20
Abstract: 155,688. Hawkins, L., and Purkis, T. Oct. 20, 1919. No Patent granted (Scaling fcc not paid). Gas cooking-stoves; gas fires.-A rear oven c and two smaller side ovens d, e are arranged around three sides of an incandescent gas fire so that the ovens are heated by the direct contact of the fire with one side of each oven, the rear oven being in addition provided with perforations c<1> in the side adjacent to the fire. The refractory blocks are held in a suitable cage and are rendered incandescent by a gas-burner having three branches h, i, j, the last named being controlled by a tap m so as to be cut out if the rear oven is not in use. The space below the burner is utilized for grilling, and the spaces below the ovens may be used for plate warming or as hotclosets.