baber/WOPTO huggingface dataset:
Patent GB-783415-A (GB)
Title: Improvements relating to disc drills for seeding or fertilizing machines
Inventor: MURRAY JOHN BAIRD
IPC: A01C5/06
Filed: 1953-09-05
Abstract: 783,415. Seeding or fertilizing machines. MASSEY - HARRIS - FERGUSON (MANU FACTURING), Ltd. Sept. 1, 1954 [Sept. 5, 1953], No. 24604/53. Class 6(1). A seeding or fertilizing machine comprises a furrow-opening disc, a drag bar extending forwardly from the disc, and a shield plate adjustably mounted on the drag bar adjacent one face of the disc so as to form therewith a discharge passage for the seed or fertilizer. The furrow-opening disc 11 is mounted on the drag bar 10 by means of a bolt 15 which also carries, between the disc and the drag bar, a bracket 21, one arm of which is formed into a split tube 27 whose sides can be drawn together by means of a bolt 29. A U-shaped rod 31 embraces the trailing edge of the disc and has one arm slidably and rockably mounted within the tube 27 and carries on the other arm a part-cylindrical carrier plate 32 secured to a guide tube 33 which receives the feed tubes, the carrier plate 32 also supporting the shield plate 12. A scraper 36 is bolted to the bracket 21 and a drag chain 38 is attached to the shield plate. The invention may be modified in that the U-shaped rod 31 may embrace the leading edge of the disc 11, or the bracket may be mounted on the same side of the disc as the shield plate, in which case the U-shaped rod 31 is replaced by a straight rod.
Patent GB-919319-A (GB)
Title: Improved magnesium alloys
Inventor: OLDS GEOFFREY CHARLES EDWARD
IPC: G21C3/07
Filed: 1960-07-14
Abstract: An alloy suitable for canning the fuel elements of nuclear reactors, contains in percentage by weight either Zr 0.6, Mn 0.1, Mg balance, or Zr 0.7, Mn 0.27, Mg balance.  Specification 851,871 is referred to.
Patent GB-685923-A (GB)
Title: Improvements in or relating to sound recording or reproducing apparatus
IPC: G11B5/00
Filed: 1949-09-26
Abstract: 685,923. Sound recording and reproducing. CHRISTENSEN. W. Dec. 22, 1950 [Sept. 26, 1949], No. 24666/49. Class 40 (ii). A sound recording or reproducing apparatus using a wire or tape record preferably of a magnetic character includes a case 3, containing two reels bearing the record, and which may be detachably fitted to a case for the remainder of the apparatus including a loud speaker microphone and circuit together with batteries, cases 3 having an aperture for the insertion of a transducer head 35 carried by the remainder of the apparatus and a control knob 16 may be operated to actuate switches A, B, C and D, and also swing a friction wheel 29 into contact with either of friction wheels 11 or 12 to drive the record tape in the direction required and effect recording or reproducing connections in the electrical apparatus. Wheel 29 is driven by motor 32 and wheels 11 and 12 have clutch couplings engaging reels 39 and 40 so that the record is driven in either direction as required. Switches A, B, C, and D connect the loudspeaker microphone 33, the oscillator F, and the correcting network E to the amplifier for recording. For reproducing the oscillator F and correcting network E are cut out. Switches 60 and 61 in the motor circuit open when the casing 3 is removed. The recording strip is provided with felt brakes near the head 35 to.keep it taut.
Patent GB-1098381-A (GB)
Title: Reinforced plastic sheet
Inventor: ORRELL WILLIAM HALLAM
IPC: B29C70/00
Filed: 1964-06-15
Abstract: 1,098,381. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. May 25, 1965 [June 15, 1964], No. 24685/64. Heading B5N. A method of making a three-layer laminate comprises passing three superimposed layers comprising a preheated thermoplastic sheet, an intermediate foraminous reinforcing layer and a thermoplastic sheet which is extruded in situ, on to the nip between two pressure rollers. Specified foraminous materials are perforated foil and wire or fibre glass mesh or gauze. The specified plastics material is polyvinyl chloride which may contain heat stabilizers, lubricants and ultra-violet stabilizers. The laminate may be corrugated.
Patent GB-662219-A (GB)
Title: Open mouth container and non-snap type closure therefor
IPC: B65D43/02
Filed: 1949-09-27
Abstract: 662,219. Stoppers. TUPPER, E. S. Sept. 27, 1949, No. 24725/49. Class 125(iii) A non-snapping closure 18 for a rigid or flexible container 10 is moulded from a resilient substance such as polyethylene which has a slow rate of elastic recovery and has a straight, concave, or convex web 19 carrying a U-shaped rim 23 which is adapted to be pressed over and grip the upper beaded, or plain, sides of the container 10. The inner width of the rim 23 is either made less than the width of the upper edge of the container or the inside diameter of the outer wall 21 of the rim 23 is made less than the outer diameter of the upper edge of the container 10. If a local depression of the web 19 is maintained while the last part of the rim 23 is applied to the container a partial vacuum in the latter is provided. The whole, or lower edge only, of the outer wall 21 is thickened to aid removal from a mould when the rim 23 is undercut to fit conically-shaped containers. In a modification the closure is adapted to seal a hollow stopper fitted to a container.
Patent GB-1397981-A (GB)
Title: Motor vehicle headlights
IPC: F21S8/12
Filed: 1972-05-25
Abstract: 1397981 Vehicle headlights A LARIBE and J FREITAG 25 May 1972 24753/72 Heading F4R A dipped-beam headlight for a motor vehicle includes a reflector with a light source 4 disposed at or near its first focus F1, wherein the reflector comprises a dome-shaped segment 2 whose surface is an elongate ellipsoid of revolution, and ellipsoidal surfaces 6 connected to the segment 2 at the forward circumference thereof, wherein the ellipsoidal surfaces 6, in a horizontal plane passing through the major axis of the ellipsoid 2 is formed of two elliptical arcs each of which has a first focus coinciding with the first focus F1 of the ellipsoid 2 and a second focus on the straight line F2-A joining the second focus F2 of the ellipsoid 2 to the junction 5 of the respective elliptical arc 6 and the ellipsoid 2. The arrangement provides an intense, narrow beam of light which merges smoothly with wider but less intense side beams. Preferably the distance of the focus F2 from the front edge 7 of the reflector is twice that from circumference 7 to the opening 3 in the rear of segment 2. Preferably the centre of the filament of the light source is disposed a small distance above axis 1 and just to the rear of focus F1. To laterally enlarge the beam a transparent plate 8, disposed in front of focus F2, has an aperture 10 for passing the central beam and prismatic ribs 9 at each edge for spreading the outer parts of the beam. A hemispherical cup is provided to shield the lower half of the reflector from the light source and to further prevent dazzle of on-coming drivers a mask 12b (Fig. 4), is dispersed in front of focus F2 to mask off regions of the reflector above the optical axis 1. As shown, the mask 12b forms part of the vehicle bodywork and the prismatic, beam-spreading plate 8b is incorporated into the radiator grid 25. A mirror (26), Fig. 5 (not shown), may co-operate with a reflecting surface 28 connected to the bottom front edge of the reflector 21 to increase the visible surface of the headlight by reflecting diffuse light from the reflector 21. To ensure that the vehicle is adequately visible to oncoming drivers the bottom of mask 12b may be suitably shaped and the hemispherical cap covering part of the source may be apertured to allow a small amount of light to be emitted. As shown, the headlight is adjusted by pivotting about an axis in front of focus F2. Rods 35, 36 rigidly connected to reflector body 21 pivot about bushes 38 in supports 39 forming part of the vehicle body. Adjustment thereof may be effected by a lever and cam arrangement, Fig. 6 (not shown), which may be adjustable by a locking control on the vehicle dashboard. The top and bottom parts of the front of the reflector may be planar, but the elliptical arc side reflectors 6 extend over the whole of the circumference 5 of the segment 2 and the reflectors may be secured together by screwing lugs and collars together. The reflector may be deformed by vertical stress to increase the lateral spread of the emitted beam.
Patent GB-829308-A (GB)
Title: Improvements in or relating to casting concrete structures in situ
Inventor: WOOLCOCK STANLEY RICHARD
IPC: E04B5/21
Filed: 1956-08-14
Abstract: 829,308. Floors. UDALLS PRESTRESSED CONCRETE Ltd. July 5, 1957 [Aug. 14, 1956], No. 24835/56. Class 20(4) A concrete floor is made by placing cores 11 having open bottoms 27 on pre-cast concrete blocks 19 on which they are located by lips 20 on the cores and casting concrete around and over the boxes. Prestressed reinforcing rods 14 are laid between the cores. The cores comprise a number of boxes 16 connected by staples and made of waterproof cardboard, may be folded flat and may contain horizontal and vertical partitions, Fig. 3 (not shown).
Patent GB-1122276-A (GB)
Title: New colouration process
Inventor: BARBEN IAN KNOWLES
IPC: D06P3/66
Filed: 1966-06-03
Abstract: A process for dyeing and/or printing textile materials comprises treating the material in presence of an alkaline reacting agent with at least one uncoloured polyfunctional hexahydrotriazine derivative which is capable of effecting wash-fast fixation of dyes containing reactive hydrogen atoms on cellulose fibres under alkaline conditions and with at least one water-soluble azo dye which contains one or more reactive hydrogen atoms preferably attached by way of nitrogen, oxygen or sulphur or which is capable of forming the same during the process and which contains at least one radical of formula:- <FORM:1122276/D1-D2/1> wherein X is a substituent attached to the triazine nucleus by an oxygen, sulphur or nitrogen atom said radical being attached to a carbon atom of the remaining dyestuff moiety through a nitrogen atom.  The fixation of the dye may be by dry heat or steaming preferably hexahydro 1, 3, 5-triacryloyl-S-triazine is employed. Cotton, cellulose acetate, wool, silk, acrylonitrile, polyester and polyamides are referred to.
Patent GB-223911-A (GB)
Title: Manufacture of condensation products of the anthraquinone series
IPC: C09B1/18
Filed: 1924-10-20
Abstract: Aminoanthraquinone derivatives of the kind described in the parent Specification are prepared by condensing amino-substituted o-benzoylbenzoic acids with halogenated 1 : 3 : 5-triazine derivatives, such as cyanuric chloride, and subsequently effecting the anthraquinone ring closure; especially suitable parent materials are the o-benzoylbenzoic acids having an amino group in the o- or p-position to that at which ring-closure occurs.  According to examples (1) a yellow vat dye is obtained by condensing cyanuric chloride with three molecular proportions of 31-aminobenzoylbenzoic acid in presence of sodium carbonate solution and treating the product with sulphuric acid of 95 per cent strength; (2) a red-violet vat dyestuff is similarly obtained from cyanuric chloride and three molecular proportions of the lactam of 21 : 51-diaminobenzoylbenzoic acid, condensation being effected in nitrobenzene in presence of sodium acetate and ring closure with weak fuming sulphuric acid.
Patent GB-591002-A (GB)
Title: Improvements in or relating to the embossing of metal and other sheet material
IPC: B44C1/24
Filed: 1944-12-13
Abstract: A non-aqueous "latex" is composed of 20 to 80 parts by weight of a natural or synthetic rubber dispersed in 80 to 20 parts by weight of a polyhydric alcohol having a boiling point greater than that of water. 15 to 1 part by weight of this composition may be blended with 85 to 99 parts by weight of a bitumen with a penetration greater than 40. Aggregate may be added. The preferred alcohol is glycerol.
Patent GB-154405-A (GB)
Title: Improvements in pad-trees for harness
IPC: B68B3/00
Filed: 1919-10-14
Abstract: 154,405. Bohse, A. Oct. 14, 1919. Harness saddles.-In pad-trees of the kind formed of two hingedly connected parts, the hinge pin 1 is constructed so as to be removable, being normally locked in position by a sliding bolt 3, the end portion of which enters a recess 1<1> in the pin. The bolt is spring-actuated and is secured to a casing 4 rotatably held in the fitting surmounting the tree. The casing has two internal ribs 6 by which it rests on cam surfaces of the rigid guide element 5. The tree may be made of two separate superposed parts 8, 9 secured together by bolts 7 and tongues 10 which take into resesses 11 in the upper part.
Patent GB-139434-A (GB)
Title: Apparatus for use in playing a game
IPC: A63F5/04
Filed: 1919-10-15
Abstract: 139,434. Jarvis, J. J. Oct. 15, 1919. Games of chance.-Apparatus for playing games of the roulette type and adapted to be driven by a gramophone clock-work motor or other source of power comprises a revolving ball receptacle E with a lateral outlet e<1> and with an independent pivoted floor e, the pivoted floor being directly driven by the gramophone connected to the spindle B, and the ball receptacle E being rotated by the frictional engagement of a disk c driven by a crossed belt connecting pulleys b, b<1>, the speeds of rotation of the floor e and of the ball receptacle E being different so that at intervals one of the balls is allowed to escape through the outlet e<1>. Around the ball receptacle and driven frictionally thereby are a number of disks c<3> similar to the disk c, the disks being divided into sector-shaped compartments bearing numbers. One disk is allotted to each player and the score is reckoned according to the compartments entered by the balls. One ball is placed on the top of a stem g attached to the floor e. When the balls in the receptacle have been discharged, the floor e tilts and the ball on the stem falls against a deflector g<1>, strikes and sounds a bell G, and ultimately escapes from the outlet e<1>. The pivots of the disks c<3> are furnished with springs s to keep the disks in frictional engagement with the receptacle E.
Patent GB-384719-A (GB)
Title: Improvements in squirrel cage rotors for induction motors subjected to axial vibratio
IPC: H02K17/16
Filed: 1931-09-09
Abstract: 384,719. Induction motors. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Sept. 9, 1931, No. 25339. Convention date, Sept. 29, 1930. [Class 35.] The short-circuiting rings of a squirrel-cage rotor are clamped against the laminµ by separate connecting pieces mounted on the shaft and rigidly held against axial movement thereon. In the form shown, pressure is exerted on the rings 25 by strong discs 22, one of which bears against the shaft collar 23 and the other is secured by the sleeve 24 bearing against the inner race of the bearing 28 or otherwise causing pressure to be exerted on the end ring by the disc. In an alternative form, the end rings extend to the shaft and are secured by sleeves on the shaft bearing against the bearing races. As a further alternative, the discs 22 may be forced to press on the rings by nuts threaded on the shaft. The Specification as open to inspection under Sect. 91 comprises also rotor bars of aluminium or alloys, the variation in length of which when subject to oscillation is very small. This subject-matter does not appear in the Specification as accepted.
Patent GB-1003663-A (GB)
Title: Anodizing method
IPC: C25D11/02
Filed: 1964-06-19
Abstract: Selected areas of the surface of a base metal or semi-conductor, e.g. a tantalum or an aluminium foil capacitor, are anodized by depositing a layer of masking metal or semiconductor, e.g. aluminium or titanium respectively, on selected portions of the surface, anodizing both the surface of the base metal or semi-conductor where exposed and of the masking metal or semi-conductor to form films of base oxide and masking oxide repectively, and selectively removing the masking metal or semi-conductor and its oxide film from the surface of the base metal or semi-conductor, e.g. by etching in dilute NaOH solution (for Al etching) or 50% H2SO4 (for Ti etching), to expose unanodized areas on the base metal or semi-conductor surface.  Other combinations of base and masking metal or semi-conductor are: Bi for masking Nb using HNO3 etchant solution, Al for W using KOH solution and Al for Zr using NH4OH solution, and Bi for masking Al using HNO3 etchant solution; other suitable materials may be Mo, Zr, Hf, Sb, Be, Mg, Si, Ge, Sn and U.  The masking material may be applied by spraying, vapour deposition or evaporation decomposition of organo-metallic compounds, e.g. a metal carbonyl, and removed by chemical or electrolytic etching.  The anodizing bath may be a solution of boric acid and sodium tetraborate, or a solution of sodium sulphate, or sulphuric, phosphoric or citric acid.  Besides capacitors, the method may be applied to masking tunnel emission diodes and insulated gates for 3-terminal devices for thin film transistors.
Patent GB-907242-A (GB)
Title: Improvements in or relating to dyestuffs of the anthraquinone series containing reactive groups
IPC: C09B62/22
Filed: 1959-07-23
Abstract: The invention comprises dyestuffs of the formula:-  <FORM:0907242/IV (b)/1> where R is a dihalogeno- or trihalogeno-pyrimidyl radical, A is hydrogen or an alkyl radical of 1 to 4 carbon atoms, R1 is a <FORM:0907242/IV (b)/2> phenylene radical containing the group in para position to the -NH- group or a diphenylene radical containing the <FORM:0907242/IV (b)/3> group in the 411-position, R2 is a carbalkoxy group of 1 to 4 carbon atoms, an alkylcarbonyl group of 1 to 4 carbon atoms or a phenylcarbonyl group which may be substituted, and R3 is hydroxy, alkyl of 1 to 4 carbon atoms or phenyl which may be substituted when R2 is carbalkoxy, or is hydroxy when R2 is alkylcarbonyl or phenylcarbonyl.  The dyes are made by reacting a tri- or tetrahalogenopyrimidine with a dyestuff of the formula:- <FORM:0907242/IV (b)/4> in the presence of an acid-binding agent. The dyestuffs dye and print fibres of synthetic polyamides, animalised cellulose, regenerated cellulose and casein and mixtures of such fibres and leather in conjunction with an alkali and heat treatment red, blue and violet shades.  Examples are given.
Patent GB-379863-A (GB)
Title: Manoeuvre signalling indicator for motor read vehicles
IPC: B60Q1/38
Filed: 1931-09-10
Abstract: 379,863. Road-traffic signals on vehicles. CAMPBELL, J. S., Sigiriya, Widdicombe Avenue, Parkstone, Dorset. Sept. 10, 1931, No. 25415. [Class 118 (ii).] A red light 33 or 36 is automatically displayed on the side to which the vehicle is turning by the closing of two switches, the first switch being operated by the accelerator mechanism as the car slows down, preparatory to turning, while the second switch, which completes the circuit, is closed by the steering mechanism, also in advance of the turn, if desired. The switch operated by the accelerator rod 2 comprises a pivoted arm 9 carrying a knife 10 adapted to engage contacts 6, 7 on an insulating plate 4 laterally movable within the limits of a bridge-piece 5, a second bridge-piece 11 limiting the movement of the arm 9. A spring 14 exerts a slight resistance to the movement of the plate 4. The switch arm 25 operated by the steering arm 45 through a rod 42 carries prongs 27 engaging in two slots 28 formed in a contact block 21 movable between a curved contact plate 20 and two curved contact plates 22, 23 separated by a gap 24. The clearance of the prongs 27 in the slots 28 and the width of the gap 24 are proportioned so that whereas a movement of 35‹ of the steering wheel to, say, the right makes the block 21 contact with the plate 23 and light the lamp 33, the restoration of the steering wheel to mid-position leaves the block 21 still in contact with the plate 23. In order to break contact with the plate 23, a further movement of 20‹ to the left of the steering wheel is necessary, a return movement of 20‹ restoring the steering wheel and the prongs 27 to the central position. On slowing down a sharp turn of the steering wheel to the right and back again will signal a proposed turn to the right, and a slight rocking of the foot on the accelerator will cause the light to flash on and off. On accelerating again, the light circuit is broken. A master switch 8 is also provided.
Patent GB-598215-A (GB)
Title: Improvements connected with the manufacture of syphons for flushing cisterns
IPC: E03D1/06
Filed: 1945-10-02
Abstract: 598,215. Making sanitary fittings. WALL'S, Ltd., and BAYLISS, J. Oct. 2, 1945, No. 25504. [Class 83 (ii)] A syphon for a flushing cistern is made of pressings 6, 7 with welded &c. flanges 8, 9. A bearing 10 for a valve spindle may be included.
Patent GB-381312-A (GB)
Title: Improvements in refrigerating systems for cooling air
IPC: F24F5/00
Filed: 1931-09-11
Abstract: 381,312. Cooling air. MATHER & PLATT, Ltd. and BARCLAY, S. F., Park Works, Manchester. Sept. 11, 1931, No. 25513. [Class 29.] The flow of refrigerant through a heat exchanger a, through which air to be cooled is drawn by a fan g, is controlled by the change in the rate of flow of the air to or from the radiator due to the variation in cross-sectional area of the air passages consequent upon the frosting of the radiator. In one construction, a fan h driven by the air flow drives a centrifugal governor i which operates a tilting switch k controlling electromagnetically a valve f in the refrigerant circuit. The fan h may be replaced by a vane or plate suspended in the air stream and directly connected to switch k. This plate may be supported on knife edges and may be provided with adjusting screws to vary the angle of switch k relatively to it.
Patent GB-155946-A (GB)
Title: Improvements in or relating to magneto-electric machines
IPC: H02K21/38
Filed: 1919-10-18
Abstract: 155,946. Cardellino, M. M. Oct. 18, 1919. Inductor machines.-A magneto-electric machine particularly for igniting in internal-combustion engines for operating a call-bell in a telephone system, comprises rectilinear permanent bar magnets 1, laminated pole-shoes 3 having the form shown in Fig. 2, and two laminated rotors 9 rotating synchronously and displaced ninety degrees in phase. The rotors 9 are surrounded by coils 11, 12 in which the induced current is generated. The magnets 1 are so arranged that the ends facing each other are of similar polarity and the path of the magnetic flux is completed alternately through the two rotors 9. The coils 11, 12, in which the induced electromotive forces differ in phase by one hundred and eighty degrees, are so connected in series that their electromotive forces are added together. The rotors 9 are made up of laminµ 8 and brass side plates ending in discs, the laminµ subtending at the circumference an angle of sixty degrees. The parts 5 of the pole shoes through which the flux passes to the rotors 9 may subtend an angle sixty or ninety degrees.
Patent GB-781400-A (GB)
Title: Improvements in or relating to ion-exchange resins
IPC: C08F220/06
Filed: 1955-09-07
Abstract: Ion-exchange resins in the form of substantially spherical particles are produced by the pearl copolymerization of acrylic and/or methacrylic acid and/or esters thereof, e.g. methyl acrylate, with a monomer containing more than one ethylenic linkage, e.g. divinyl benzene, and one or more anhydrides of polymerizable ethylenically unsaturated acids, e.g. acrylic and methacrylic acids.  After preparation the copolymers are preferably subjected to alkaline hydrolysis of the anhydride linkages and any ester groups present. In an example the monomers are pearl polymerized in an aqueous solution of sodium chloride containing starch as dispersing agent and benzoyl peroxide as catalyst.