baber/WOPTO huggingface dataset:
Patent GB-972219-A (GB)
Title: Improvements relating to variable-speed gearing
Inventor: BOOTH ALFRED
IPC: F16H15/10
Filed: 1962-05-25
Abstract: 972,219. Variable-speed gear. STONE -WALLWORK Ltd. May 6, 1963 [May 25, 1962], No. 20234/62. Heading F2D. In a disc and roller variable speed friction gear a centrifugal device responsive to input shaft speed engages the disc with the rollers above a predetermined speed and the rollers are connected to the output shaft by planetary gearing. A driving disc 9 is moved along splines 4, on the input shaft 1, against a spring 10 to engage rollers 14 above a predetermined speed by centrifugal rollers 8 in tapered cages 7<SP>1</SP>, 7, respectively, formed in the disc 9 and a reaction disc 5 splined to the input shaft 1. The rollers 14 are carried on substantially radial splined shafts 15, supported in bearings in the casing 3, through holding rings 22 having pins 23 engaged in oblique slots in a disc 26; the disc 26 being rotatable by a non-reversible worm 30 to provide ratio change by radial movement of the rollers. The shafts 15 are rigid with bevel gears 34 meshing a bevel 35 freely supported on the input shaft and integral with a sun-gear 40. The sun 40 meshes a planet gear 41 connected to a second planet 44 engaging, second sun 45 integral with the output shaft 2, the carrier 43 for the planets being fixed to the input shaft 1. The overall ratio of the planetary gear may be such as to provide speeds from zero to that of the input in either direction, or speeds higher than input, at shaft 2.
Patent GB-635928-A (GB)
Title: Improvements in or relating to methods of making tubular wrought metal fixtures
IPC: B21K1/16
Filed: 1947-07-28
Abstract: 635,928. Making pipe couplings &c. NORTHERN INDIANA BRASS CO. July 28, 1947, No. 20267. Convention date, Nov. 15, 1944. [Classes 83 (ii) and 83 (iv)] Extruding; forging.-A method of forming tubular fittings such as pipe couplings comprises heating a tubular blank, upsetting the blank to form a relatively thickened end portion and simultaneously extruding the blank to form the other end portion of the fitting of smaller diameter than the original blank. The combined operation is carried out by a press comprising members 6 and 9 supporting dies 8 and 11, the upper die 11 and an ejector rod 24 being reciprocated by a piston 15 in a cylinder 16. Correct alignment of the upper and lower dies is ensured by interfitting portions 21, 22. The upper die has a uniform bore 17 and the lower die a bore 151 of smaller diameter with an enlarged portion 161 of polygonal cross-section at its upper end. A heated blank is inserted in the bore 17 so that its lower end nests on a shoulder 27 formed by the bottom of the recess 161. An upper punch then descends, the reduced end portion 20 passing through the blank and the upper portion 18 being a fit within the bore 17 so that the shoulder 28 between the two portions acts as a ram on the top of the blank causing the blank to be upset into the recess 161 and then to be extruded between the bore 151 and mandrel 20 to form a tubular portion 4 of smaller diameter than the original blank. The coupling is finished by machining and is screw-threaded at one or both ends as required. Reference has been directed by the Comptroller to Specification 640,649.
Patent GB-654839-A (GB)
Title: Apparatus for projecting motion pictures
IPC: G03B41/08
Filed: 1947-07-28
Abstract: 654,839. Kinematograph projectors. VITARAMA CORPORATION. July 28, 1947, No. 20288. Convention date, Feb. 1, 1944. [Class 97 (i)] Apparatus for projecting motion pictures on to a cylindrical screen comprises means for continuously feeding a kinematograph film through a cylindrical gate having an aperture longer than one frame of said film, a lens system, means for rotating the lens system about an axis which coincides with the geometrical axis of the gate, means for projecting a beam of light, which is narrow relatively to said film frame, through said aperture, frame and lens system and means for rotating said light beam about the geometrical axis of the gate at an angular velocity greater than the angular velocity of the film in the gate and at the same angular velocity as the lens system to cause each of the successive film frames to be scanned while traversing the full length of the aperture, said lens system serving to focus the image, scanned by the light beam, on to the cylindrical screen. In the projector shown, a film 21 passes round a guide roller 22 through a cylindrical gate defined by channelled members 29, 30 and plates 27, 27<SP>1</SP> and is engaged by a continuously-rotating sprocket 23. Each film frame is illuminated by one or other of two lamps 31, 31<SP>1</SP> mounted together with reflectors 33, 33<SP>1</SP> in a frame which rotates with a shaft 34 about the geometrical axis of the gate. Also carried by the shaft for rotation therewith is a lens holder 25 through which and the film passes a narrow light beam reflected from a conical mirror 28. Shaft 34 is driven through a gear 37 to rotate in the required time relation with the rotation of sprocket 23 so that Vb/Vf=A/A-F, where Vb and Vf are the angular velocities of the rotating beam and of the film respectively, A is the angle subtended by the arc of the gate aperture at the axis of rotation and F is the angular distance between successive film frame centres. A commutator 40 comprising a conducting segment 41 and brushes 42, 43 serves to illuminate the operative lamp 31 or 31<SP>1</SP>. The image of each film frame is projected on to a cylindrical screen, the geometrical axis of which preferably coincides with the axis of rotation.
Patent GB-219188-A (GB)
Title: Improvements in strainers for water feed-pipes
IPC: F04B53/10
Filed: 1923-08-10
Abstract: 219,188. Rosson, W. J. Aug. 10, 1923. Strainers h a v i n g sheet straining-materials; strainers fitted at end of pipes.-A strainer, specially adapted for attachment to the end of the suction hose pipe of a steam wagon or fireengine, comprises a perforated cylindrical or like outer casing a having a connecting neck c and closed at at the lower end by a cover d on which are mounted a number of concentric perforated cylinders f, h, the perforations in which are smaller as the centre is approached.
Patent GB-868094-A (GB)
Title: Improvements in or relating to pattern mechanisms for dobbies of weaving looms
Inventor: SUATIJ VLADIMIR
IPC: D03C1/22
Filed: 1958-06-25
Abstract: 868,094. Loom pattern mechanisms. SDRUZENI PODNIKU TEXTILNIHO STROJIRENSTVI. June 25, 1958, No, 20390/58. Class 142(2) A pattern mechanism comprises rollers 4 loosely accommodated in channels 3 in a drum 2 and retained by a cover 6. Toothed wheels 9 rotated by a ratchet 10, 11 operated by a cam 16, feed the rollers past feelers 18 which set the hooks of the dobby; some of the rollers are plain and some have a groove 5. When released by the wheels 9, the rollers are carried round by the drum, which rotates sufficiently rapidly for the rollers to rejoin their companions before the next feeding movement of the wheels 9; the channels 3 thus need not be full and need not contain the same number of rollers each. The pawl 11 can be swung to the other side of the lever 13 to reverse the dobby.
Patent GB-183043-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B25/00
Filed: 1921-07-29
Abstract: 183,043. Kilburn, B. E. D., (Sulzer FrÞres Soc. Anon.). July 29, 1921. Cylinders receiving liquid fuel.-In twostroke-cycle engines having a chamber d to which fuel is admitted and partly burnt to expel the remainder into the cylinder, an extra port f is provided by which compressed pure air is admitted after the exhaust ports are closed in order to ensure the ignition of the charge.
Patent GB-857300-A (GB)
Title: Iron alloy
IPC: C22C38/48
Filed: 1958-06-26
Abstract: An iron-base alloy having good high temperature properties has a composition within the following range in per cent by weight: Cr 9.0-15.0, W 1.0-4.0, Co and/or Ni 1.0-5.0, Ta and/or Nb 0,5-5.0, C 0.15-0.4, Fe and impurities, the balance.  The impurities may comprise Mn up to 1.0 Si up to 0.m175, Al up to 0.5.  Specification 795,471 is referred to.
Patent GB-1138006-A (GB)
Title: Improvements to fluid pressure regulators
Inventor: MENNESSON ROBERT MAURICE
IPC: G05D16/06
Filed: 1967-05-03
Abstract: 1,138,006. Valves. SOC. D'APPLICATIONS ET DE CONSTRUCTIONS POUR MATERIEL AUTOMOBILE (S.A.C.M.A.) 3 May, 1967 [4 May, 1966], No. 20593/67. Heading F2V. Air is supplied to a metrology unit from a source 26 via restrictions 27, 29 and a constant pressure chamber 2 having a vent 10 controlled by a closure surface 8. The latter is part of a hollow rod 7 interconnecting the end walls of resilient bellows 5, 6. The bellows are liquid filled and their interiors communicate through annular port 25 or through a variable orifice. Chamber 2 communicates through passage 22 and restriction 23 in rod 7 with a further chamber 3 having a vent 21 controlled by a valve 14 abutting the head of rod 7. The pressure in chamber 3 compensates for the resilience of the bellows. The bellows can alternatively be spring-loaded to achieve the required resilience. The system could also be used to create a controlled vacuum in chamber 2 when source 26 is a vacuum source. Restriction 23 may be adjustable in response to bellows movement.
Patent GB-711068-A (GB)
Title: Improvements in or relating to fluorescent materials
Inventor: MEYER HEBERT
IPC: C09K11/66
Filed: 1951-08-31
Abstract: 711,068. Luminescent materials. DERBY & CO., Ltd. Nov. 7, 1952 [Aug. 31, 1951], No. 20621/51. Class 39(1) A process for the manufacture of a lead-activated barium silicate sulphate having an emission in the long U.V. region when excited by short U.V. radiation, such as 2537A in a discharge lamp, comprises heating to a temperature of at least 1000‹C, but below the temperature of fusion, preferably between 1100 and 1125‹C, a mixture containing silica, barium oxide or a compound forming barium oxide on heating, such as barium carbonate, a lead compound and barium sulphate or substances forming barium sulphate on heating, such as barium carbonate and ammonuim sulphate Barium fluoride and/or barium chloride may also be present in the mixture. The mixture can contain per mol. of barium carbonate 2.2 to 3.5 mols. of silica, 0.05 to 0.5 mol. of barium sulphate and 0.5 to 3 per cent by weight of the mixture, of a lead compound (calculated as lead), with or without a small proportion of barium fluoride and/or barium chloride. In one example the mixture contains 1 mol. of barium carbonate, 3 mols of silica, 0.12 mol. of barium sulphate, 1.5 per cent by weight of the mixture of a lead compound (calculated as lead), 2¢ per cent by weight of barium chloride dihydrate and 5 per cent by weight of barium fluoride. The lead may be added as the oxide, peroxide, sulphate, nitrate or fluoride. Other examples are described. Further examples are described in the Provisional Specification. The ingredients are ball-milled dry, filled into silica crucibles, fired for four hours in air at 1125‹C, removed from the crucible, ground with water, washed free from any soluble salts, dried and sieved. According to the Provisional Specification the ingredients are ball-milled with acetone, filtered, dried and filled into silica crucibles, &c. Specifications 572,771, 646,575 and 672,516 are referred to.
Patent GB-1449993-A (GB)
Title: Method and apparatus for distributing plastics on an irregular  wokpiece surface
IPC: B29C61/00
Filed: 1974-05-10
Abstract: 1449993 Forming coated products; coating apparatus AMERICAN CAN CO 10 May 1974 [1 Oct 1973] 20719/74 Headings B2E and B2L A method of flattening the surface of hot plastics material 11 which has been applied to irregular surfaces 13 of workpieces. e.g. a metal push-button can ends 15, comprises randomly placing the coated workpieces on a conveyor 21 which moves the workpieces to a roller 25 coated with silicone rubber having a softness of 15 to 21 on the Shore A scale, and contacting the surfaces of the plastics material with roller 25. The speed of the conveyor is synchronised with rotation of the roller, and the rubber may be sponge rubber. The plastics material is preferably a plastisol which seals pierced or severed metal defining a venting aperture 17 and a pouring aperture 19 in the can end.
Patent GB-258567-A (GB)
Title: Improvements in or relating to carburetters
IPC: F02M1/04
Filed: 1926-08-23
Abstract: 258,567. Soc. du Carburateur Zenith. Sept. 18, 1925, [Convention date]. Spray carburettors.-To facilitate starting, the usual slow-running passage is provided with an additional fuel nozzle supplied from the constantlevel device, and under the control of the driver. As shown in Fig. 1, the ordinary slow-running nozzle d opens into a passage c provided with a branch b into which opens an additional nozzle a, a. valve or cock operable from a distance being provided either on the nozzle a or in the branch b. In modifications in which the nozzles d, a both open into a horizontal branch of the passage c open at the end to the atmosphere, (1) the nozzle a is valve controlled, and the crosssectional area of the branch passage is controlled by a transverse screw placed either between, or on the air-inlet side of, the nozzle, (2) the portion of the branch passage into which the nozzle a opens is of enlarged diameter and a throttle valve is provided on the air-inlet side of this nozzle, and (3) an air-inlet passage surrounds the nozzle a and a three-way cock is provided at the junction of this passage and the branch passage. In the form shown in Fig. 11, a manuallyoperated disc k provided with a groove s and with two air-inlet ports is adapted to alternatively (1) put the additional nozzle a in communication with the part u of the slow-running passage c, (2) to put the passage u into communication with the atmosphere, or (3) to put both the passage u and a passage p supplying aerating air to the main nozzle into communication with the atmosphere. The passage p and the coacting air port in the disc may be omitted.
Patent GB-884886-A (GB)
Title: Preparation of feed streams for hydrocarbon processing with aluminium bromide
IPC: C10L1/06
Filed: 1960-06-14
Abstract: Paraffinic hydrocarbon feeds also containing aromatics and possibly olefins and sulphur compounds are upgraded by contacting with a molecular sieve, e.g. of 10A or 13A pore size, to remove aromatics, olefins and sulphur compounds, contacting the effluent with aluminium bromide at not more than 140 DEG F. to form C4-C7 isoparaffins and using at least part of the product to desorb the aromatics from the molecular sieve to obtain a mixture containing isoparaffins and aromatics.  The feed may be a light naphtha which is isomerised as in the parent Specification or may comprise a minor proportion of a C6-C18 paraffin, e.g. n-heptane with a butane or pentane, e.g. isobutane, which under conditions effecting cracking, isomerisation and alkylation yields highly branched C5 and C6 paraffins. Water may be first removed with silica gel or a 4A molecular sieve.  To ensure complete removal of aromatics the feed may be passed through a second "guard" bed of 10A or 13A molecular sieve or an aluminium halide on a support.  Aluminium bromide is then dissolved in the feed and passed over a support, e.g. porocel, previously saturated with aluminium bromide. Isomerisation is affected at 50 DEG F.-140 DEG F., up to 200 p.s.i. with a feed rate of 0.1-2 vol./vol/hr.  A hydrogen halide promoter may be used and isobutane added as a cracking suppressor. More severe conditions are used in the cracking-isomerisation-alkylation reaction, e.g. by using a lower feed rate.  A volume ratio of isobutane to n-heptane of 3 : 1 may be used.  The aluminium bromide may alternatively be used as a complex with bromine, phosphoric acid, ethyl bromide, heptyl chloride or dimethyl ether.
Patent GB-1092826-A (GB)
Title: Automatically controlled rotating shutter for cine-cameras
IPC: G03B9/10
Filed: 1965-05-18
Abstract: 1,092,826. Cine cameras; exposure control mechanisms. P. GOSSEN & CO. G.m.b.H. May 18, 1965 [Oct. 9, 1964], No.20983/65. Headings G2A and G2E. In a cine camera, having a disc shutter with a continuously rotating sector 2, the exposure of each film frame is terminated by an upward oscillation, under photo-electric exposure control, of an additional shutter blade 4. The leading edge of the segment 2 is realigned with exposure aperture 14 while it is covered by exposure terminating blade 4. Thereafter, blade 4 is retracted by cam 3, stressing leaf spring 9, until armature 13 is returned to electromagnet 11. On continued rotation of shaft 1, the magnet 11 is energized to retain armature 13. As the trailing edge of sector 2 is about to clear aperture 14 to begin the exposure, a switch (7) Figs. 2 and 3 (not shown) is opened to allow a battery (15) to charge a capacitor (17) through a photo-resistor (18). When the capacitor reaches the threshold potential of a trigger circuit (20), the latter de-energizes the magnet 11, to allow blade 4 to be driven by spring 9 to close the aperture 14. The photo-resistor may be positioned to receive light from the camera objective.
Patent GB-1304436-A (GB)
IPC: G01N3/08
Filed: 1970-05-01
Abstract: 1304436 Stress/strain testing material  BADISCHE ANILIN & SODA-FABRIK AG 1 May 1970 [2 May 1969] 21025/70 Heading G1S Material P which may be viscoelastic polyethylene is subjected to tensile forces by oppositely rotating pairs of speed adjustable sprocket rollers 1, 3 driven by linked motors 2, 4. A spring 5 freely suspends the rollers 1 and may be deflected when P is subjected to tensile stress, an inductive pick-up 6 or a wire strain gauge being used to measure the deflection which is proportional to the force on P so that a force-time diagram may be drawn by a recording instrument. The material P, Fig. 3, may be supported on the surface of a higher density liquid both which is heated by oil or electric heaters 9, 10 to provide additional convection supporting currents and keep P at constant temperature. The bath liquid must not diffuse into the test material, and to prevent this when testing polyethylene melts certain silicone oils can be used. Two severing devices 8, 8' are provided which may simultaneously cut through the specimen P whilst it is under tensile test so that the section between the cutters will shorten appreciably, the total shortening corresponding to the rubber-elastic recovery. The relaxation or retardation properties of P may also be measured by securing a single pair of clamps 7 together whilst the speciman is under tensile test and stripping the motor 2. The return of the specimen to its original dimension may now be measured by the pick-up 6 and used to ascertain the residual tensile strength as a function of time.
Patent GB-1128333-A (GB)
Title: Improvements in or relating to cable or rope clamps or ferrules
Inventor: WHITTAKER WILLIAM
IPC: F16G11/02
Filed: 1965-02-09
Abstract: 1,128,333. Rope couplings. CABLE COVERS Ltd. 4 Feb., 1966 [9 Feb., 1965], No. 21042/67. Divided out of 1128332. Heading D1T. A rope clamp in the form of a metal ferrule or sleeve of generally elliptical or oval crosssection and having a bore that is of the same cross-sectional size and shape throughout its length, is externally tapered, or chamfered, or rounded around the whole periphery of one or both ends in order to reduce the volume of metal in the vicinity of said end or ends. Fig. 2 shows an embodiment in which the bore is elliptical and flats 3 are formed on the walls parallel to the major axis. Flats 3 may be formed on the walls that are parallel to the minor axis. The ferrule ends may have oppositely disposed cut-out portions 4 and there may be one or more radially disposed inspection holes 5. The external tapering, chamfering or rounding is shown at 2. Fig. 3 (not shown) illustrates an embodiment in which the bore is of figure eight formation.
Patent GB-918616-A (GB)
Title: Improvements in and relating to photographic plate or film measuring devices
Inventor: SISSON GEORGE MACFARLAN
IPC: G01N21/59
Filed: 1960-06-15
Abstract: 918,616. Locating marks photo-electrically. GRUBB PARSONS & CO. Ltd., Sir HOWARD). May 30, 1961 [June 15, 1960], No. 21077/60. Class 40 (7). [Also in Group XL (b)] A device for locating a mark on a transparent film comprises means for cyclicly rotating an image of the mark relative to an apertured diaphragm before a photo-cell and means for determining the phase of the photo-cell signal due to the image relative to a signal due to an image of a light source rotated by the same means. A dark mark on a film 1, Fig. 1, casts an image on the diaphragm 12 which image is rotated past an aperture therein by a rotating prism 10, thus reducing the output of a photocell 11. An image of a lamp 5 is reflected through the prism 10 by a beam combiner 4 comprising two prisms with a semi-reflecting layer therebetween, and this gives an increase in photo-cell output when crossing the aperture in diaphragm 12. The cell output is fed to an oscilloscope and the position of the mark is adjusted to a predetermined position by making the positive and negative pulses coincide, Fig. 2. If the mark is light on a dark background, a graticule is placed in the reference beam to give a dark image. Specification 903,030 is referred to.
Patent GB-945257-A (GB)
Title: Improvements in internal combustion engines ignition systems
Inventor: ANDRE BUNODIERE
IPC: F02P3/08
Filed: 1960-06-15
Abstract: 945,257. Ignition systems. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL, and REGIE NATIONALE DES USINES RENAULT. June 15, 1960 [June 22, 1959], No. 21091/60. Heading F1B. An ignition system comprises in combination means for generating a pulse waveform voltage having a controllable recurrent period and means controlled by the rotation of the engine for tying the recurrent period to the rotation, a delay line 4 and the primary winding 5 of a pulse transformer connected in series, a control device 8 of thyratron control characteristics having controlling means connected to the pulse generator, the device being connected between the input of the line and the output of the primary winding, a rectifier diode bridge connected with the delay line and the primary for clipping the negative pulse of the delay line, a constant D.C. voltage source 1 for energizing the ignition system, and a rectifier diode 3 series connected with an inductance coil 2 between the constant D.C. voltage source and the delay line for preventing the discharge of the delay line in the source, the secondary winding 7 of the pulse transformer being connected to a distributer D as shown the control electrode 9 is connected to one terminal of a circuit breaker 12 through an R C circuit comprising a resistor 13 and a capacitor 11. The contact breaker may be of any conventional type used in motor car ignition systems or of the magnetic type for example comprising a rotary magnet and moving coil or coil assembly such as that disclosed in French Specification 1,183,698. The transformer 6 may be premagnetised by means of a permanent magnet.
Patent GB-690463-A (GB)
Title: Alkyl riboflavin phosphates and process for the manufacture thereof
IPC: C07F9/6561
Filed: 1951-09-07
Abstract: The invention comprises alkyl riboflavin phosphates, the alkyl group or groups whereof each contain not more than five carbon atoms e.g. mono and diethyl and mono and dimethyl riboflavin phosphates and their preparation by reacting riboflavin with an alkyl chlorophosphate.  The reaction may be effected by adding one or two mols. of an alkanol to phosphorus oxychloride with the subsequent addition of riboflavin.  The alkyl riboflavin phosphate may be hydrolysed to riboflavin phosphate, e.g. with aqueous hydrochloric acid.