baber/WOPTO huggingface dataset:
Patent GB-789586-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J23/213
Filed: 1956-07-03
Abstract: 789,586. Magnetrons. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 3, 1956 [July 6, 1955], No. 20593/56. Class 39(1). A tunable magnetron comprises a number of anode segments, 1 .... 12, arranged about a cathode and alternately secured to rings 13, 14 provided at both ends of the electrode system, the interstices between the anodes being alternately large and small, the larger interstices being each bridged by a substantially U- shaped conductor 15 ... 20, and the two rings being arranged so as to be rotatable with respect to each other. Preferably the large and small interstices between the anodes differ by at least a factor of four from each other. The ring 13 may be fixed to the bottom of the tube and the ring 14 secured to an axial spindle which may be rotated from the outside of the tube.
Patent GB-703574-A (GB)
Title: Improved method and apparatus for producing fibrous webs
IPC: D04H1/72
Filed: 1951-09-03
Abstract: 703,574. Pneumatic conveyers. WEST POINT MANUFACTURING CO. Sept. 3, 1951 [Sept. 19, 1950], No. 20738/51. Class 78 (1) [Also in Groups VIII and IX] In apparatus for forming a fibrous. web (see Group IX), fibres are removed from the surface of a carding cylinder 12 by a high velocity air stream which enters a duct 14 tangentially to the cylinder through an inlet 28 the width of which js differentially variable over the width thereof by means of a flexible gate 30. A limited amount of air also enters duct 14 through an auxiliary air inlet 38. The fibres are carried by the air stream along duct 14 and deposited on a moving endless flexible screen 16, and are removed by the screen as a fibrous web 122. The air stream passes through screen 16 into an exhaust duct 88 having an elongated throat 90 and a converging section 92 communicating with a duct 96 leading to an exhaust fan. A series of flexible leaf plates 98, each adjustable by a screw 100, is arranged across the width of throat 90 so that the opening at the throat can be differentially varied across the width thereof. Specification 659,088, [Group VIII], is referred to.
Patent GB-793093-A (GB)
Title: Improvements in and relating to objective lens systems
IPC: G02B13/04
Filed: 1956-07-05
Abstract: 793,093. Optical objectives. SCHNEIDER, M. C. July 5, 1956 [July 5, 1955], No. 20885/56. Class 97(1) A photographic or kinematographic objective with a large angle of view comprising a converging system part formed of a three converging components enclosing between the second and third components a simple biconcave lens and a negative system part consisting of two simple negative meniscus lenses arranged in front of the converging part, is characterized in that the converging component located in front of the biconcave lens is a simple meniscus lens concave to the biconcave lens and formed of glass having a refraction index less than 1.50. The rear position component may be formed of two lenses: cemented together the sum of the refractive index of these lenses being greater than 3.3 and their difference less than 0.01. Numerical data are given for one example of the objective shown.
Patent GB-1114400-A (GB)
Title: Improvements in or relating to styrene/alkyl alcohol copolymers
Inventor: FAULKNER RAYMOND NOEL
IPC: C08F8/14
Filed: 1967-05-05
Abstract: A gallate modified styrene/allyl alcohol copolymer is produced by heating at below the decomposition temperature of the reactants an alkyl ester of gallic acid with a styrene/allyl alcohol copolymer in the present of a metal alkoxide or an activated aluminosilicate as catalyst.  The copolymer may be partially esterified with a fatty acid, e.g. tung/linseed, or treated with methyl laurate prior to reaction with the gallate.  The gallate may be propyl gallate.  The catalyst may be alumuninum or zirconium alkoxide or titanium isopropoxide. The copolymer may be compounded with a major proportion of an at least partially water-miscible volatile organic solvent .g. ehtylene glycol mono-ethyl ether with optionally xylene, xylol.  The composition may also contain acetic or formic acid, an acid phosphate or ferric chloride and iron butoxide or octoate.  The compositions may be used for coating ferrous surfaces.ALSO:The corrosion resistance of ferrous surfaces is increased by applying to a freshly abraded ferrous surface, e.g. of mild steel, a coating composition comprising a minor proportion of a gallate modified styrene/alkyl alcohol copolymer (which is produced by heating at below the decomposition temperature of the reactants an alkyl ester of gallic acid with a styrene/alkyl alcohol copolymer in the presence of a metal alkoxide or an activated aluminosilicate as catalyst) and a major proportion of an at least partially watermiscible volatile organic solvent whose degree of water-miscibility and volatility, and amount is so chosen that on coating a ferrous surface a complex of the copolymer with iron is formed and diffuses throughout the coating before the viscosity of the coating is too high to allow of such diffusion. The solvent may be ethylene-glycol mono-ethyl ether with optionally xylene, xylol.  The composition may also contain acetic or formic acid, an acid phosphate or ferric chloride and iron butoxide (which are capable of forming iron compounds in situ) or octoate.
Patent GB-209751-A (GB)
Abstract: 209,751. Duhanot, E. Jan. 13, 1923, [Convention date]. Matches are tipped with igniting composition by being dipped several times in paste, and the distance which separates them from the paste after each contact is varied in order to effect a gradual tapering of the heads. Match splints 1 are dipped into paste carried by an endless belt 2 which by means of a transferring roller 18 receives a layer of paste from a jacketed basin 20, the thickness being regulated by a scraper 22. The belt may be driven at the same speed as the splints by means of a worm wheel on a drum 4 supporting the belt, the worm wheel meshing with a worm 5 carried by a shaft 6 rotated by the conveyer driving mechanism 8, 9. Bearings 12 of the other drum 3 on which the belt is mounted are connected by links 13 to eccentrics 14 rotated from the shaft 6 so as to effect an oscillating movement to the belt. A scraper 23 removes paste and any bits into a pan 24 and brushes 28 dipping in water clear the sides of the belt and diminish risk of ignition. The belt sides may constitute projections to limit the spread of paste. The heading apparatus, which is mounted on rollers 11, may be removed for cleaning by bringing out of mesh pinions 7 driving the shaft 6. By means of lifting mechanism 29 .. 32 an axle of the splint conveyer may be raised to suspend the heading operation. In modifications the apparatus may be independently driven, the roller 4 may oscillate instead of the roller 3, or the matches themselves may be made to oscillate. The apparatus may be used for a paraffining operation.
Patent GB-986693-A (GB)
Title: Improvements relating to continuous stationery and apparatus for manipulating such stationery
Inventor: WATTS JACK
IPC: B65H35/10
Filed: 1962-05-31
Abstract: 986,693. Severing stationery forms and crimping. ALACRA Ltd. May 14, 1963 [May 31, 1962], No. 21001/62. Headings B6H and B6P. Continuous superposed webs of stationery, pre-printed with forms and transversely perforated between successive forms, are fed through burster rollers 10 to 13. Rollers 11 and 13, Fig. 1, may be driven twice as fast as rollers 10 and 12. Rollers 12 and 13 may have marginal pin wheels engaging edge perforations in the webs, and severing apparatus may be provided:for removing the marginal portions. Each set: of sheets may take either of two paths to the stacking tray 30 according to the position of a switch 31. When the switch 31 is in the position shown in full lines, each set of sheets is fed to a pair of crimping rollers 18, 19 via guide and support plate 23. The lower roller 19 is chain driven by the same source which drives burster roller 10, and may be rotated at a super speed 1.2 greater than roller 10. The top roller 18 is resiliently mounted on a base 22 with rods 24 and rubber washers 26, Fig. 5. The crimping rollers 18, 19 may be moved towards and away from the burster rollers to accommodate different sheet sizes. In a modification, a pair of endless tapes or conveyers may be provided for transferring the sheet from the burster rollers to the crimping rollers, Fig. 4 (not shown). When the switch 31 is in the 'position shown in broken lines, Fig. 1, the sheets by-pass the crimping rollers and are directed down a guide 34 to the stacking tray 30. Specifications 551,379 and 551,442 are referred to.
Patent GB-692802-A (GB)
Title: Improvements in or relating to electric trigger circuits
Inventor: WHITE CHARLES DE BOISMAISON
IPC: H04L25/02
Filed: 1950-08-25
Abstract: 692,802. Semi-conductor devices. STANDARD TELEPHONES & CABLES, Ltd. Aug. 17, 1951 [Aug. 25, 1950], No. 21041/50. Class 37. [Also in Group XL (c)] An electric trigger circuit comprises a crystal triode conditioned such that collector-current, emitter-current curve is of the hysteresis type, means for biasing the emitter electrode such that the collector current has two possible values, and means for applying a trigger pulse to the emitter to switch the collector current from one possible value to the other. Fig. 1 shows how the collector current rises suddenly at point 12 as the emitter current is increased, and falls suddenly at point 7 as the emitter current is decreased. In Fig. 2, the emitter 16 is biased to a level corresponding to point 9 in Fig. 1, and the collector current is switched between the two values indicated at 10 and 11 in Fig. 1 by means of positive and negative pulses which are applied to the emitter through transformer 19. Output pulses are taken from the collector 17 between terminals 24 and 25. An additional control electrode 18 may be provided as described in Specification 681,829, [Group XL (c)], which is spaced between 0.005 and 0.015 inches from the other electrodes, and is biased in the forward direction whereby the hysteresis effect may be controlled. The rectifying contacts may consist of small areas of metal film as described in Specification 686,915. In plating these electrodes on N-type germanium, the germanium surface should be etched with an alkaline solution and then plated from an alkaline copper-plating solution containing a small quantity of arsenic which serves as a donor impurity. Reference is made to Specification 681,809, [Group XXXIX], regarding electroforming treatment.
Patent GB-1514765-A (GB)
Title: Apparatus for deriving power from wave motions in water
IPC: F03B13/18
Filed: 1975-05-16
Abstract: 1514765 Utilizing wave energy M G TORNABENE 16 May 1975 21049/75 Heading F1S A device for converting wave motion into usable power comprises a float 23 mounted on an elongated rigid element 13, which it reciprocates, and having a curved lower surface, the elongated rigid element carrying an additional mass element 22 on or in association with the float. The additional mass element may be above or below the float and spaced from it. The float may include a large amount of mass in addition to being designed to remain afloat as a float. As shown the elongated rigid element is a rack which operates generators 17a, 17b.
Patent GB-1419894-A (GB)
Title: Apparatus for controlling a burner
IPC: F23N5/00
Filed: 1973-05-03
Abstract: 1419894 Burner controls F GUIGUES and M PILLARD 3 May 1973 [31 May 1972] 21109/73 Heading F4T The degree of openness of a combustion air valve 6 and a fuel valve 4 are controlled automatically by a positioning control having a cam 5a and pivoted arms 11 to maintain the volumetric air/fuel flow ratio generally constant, and the operation of this control is corrected, e.g. to account for temperature changes, to maintain a substantially constant air/fuel mass flow rate ratio by a servo-mechanism 10 automatically varying the length one of the arms 11 as a function of an electrical signal, which is proportional to the opacity to light of the combustion fumes and is provided by an opacimeter 7, 13a, 13b. A probe 1 senses a parameter linked to the combustion, e.g. water temperature or steam pressure in a boiler, and is connected to a regulator 2 giving an analogue output signal in the form of a modulated pressure for pneumatic controls or a modulated voltage for electric or electronic controls. The output signal acts through a relay 3, allowing manual and automatic burner control, on a motorized, e.g. pneumatic, fuel valve 4, and on a servomotor 5 controlling positioning of a cam 5a and, through the arms 11, positioning of air valve 6 to maintain the volumetric air/fuel ratio generally constant. Cam 5a may alternatively be operated directly by the valve 4 or valves 4 and 6 may each have respective cams in their controls. A light source 13a and reflected-light receiving photocell 13b, which may be connected to control box 7 via optical fibres 7a, yield an electrical signal to an apparatus 8 providing two thresholds. If the incoming signal exceeds one threshold or the other an electric, pneumatic, or hydraulic, doubleacting ram 10 increases or decreases respectively the length of rod 11, and if the signal is between the thresholds the rod length is not altered. The thresholds may be arranged so that the combustion fumes are maintained at a Bacharach index between 2 and 4. A double-contact cyclic circuit-breaker 9a, 9b prevents ram 10 oscillating. Air valve 6, which may be a double butterfly valve in the intake or delivery conduit of a fan 6a or an air flap, or a sleeve sliding around air openings in a burner side wall, acts on circuitbreakers 14 to prevent operation of ram 10 in the fully open and closed positions of valve 6.
Patent GB-1001470-A (GB)
Title: Amine phosphate esters as fuel additives
IPC: C07F9/11
Filed: 1963-05-27
Abstract: A motor fuel composition comprises a motor fuel boiling in the range 80 DEG  to 420 DEG  F. and containing a minor quantity of an amine salt of a mixture of mono- and dialkyl acid esters of phosphoric acid, wherein the amine is a C1-6 primary alkylamine and the alkyl groups of the esters contain 11 to 20 carbon atoms each (preferably derived from oxo alcohols).  From 2 to 80 lb. of salts may be used per 1000 barrels of gasoline.  The salt may be added to the fuel as a solution in kerosene.ALSO:An amine salt of a mixture of mono- and dialkyl esters of phosphoric acid is prepared by reacting an alcohol containing from 10 to 20 carbon atoms with P2O5 and reacting the resulting ester mixture with a C1-6 primary alkylamine at 220-350 DEG F. for 1 to 18 hours. Organic solvent solutions of the salts are claimed per se, kerosene being specified.  Oxo alcohols are preferred starting materials.  The products are used as fuel additives.
Patent GB-445667-A (GB)
Title: An improved carburettor for internal combustion engines
IPC: F02M19/00
Filed: 1935-07-25
Abstract: 445,667. Spray carburetters. KING, D. P., 31, Devon Street, Goodwood, South Australia. July 25, 1935, No. 21182. Convention date, July 25, 1934. [Class 7 (iii)] Perforations between an air intake duct forming a continuation of the induction pipe and a float chamber above the level of the fuel are arranged in regions of different pressures and those in the region of greatest depression are provided with channels connecting them with the fuel space to adapt them to spray fuel when there is an air flow through them, means being provided to regulate the pressures in the duct and over the perforations to cause such a flow. A tube 10, divided by an adjustable Venturi 26 into lower and upper parts constituting an air inlet and a mixing chamber respectively, communicates through two rows of ports 21, 22 with the upper part of an annular float chamber 9 clamped between a flange 11 on the tube 10 and a nut 12. The upper ports are adjusted by needle valves and passages 23 extend from the lower ports to beneath the level of the fuel, one of them being extended upwards to form an idling nozzle. The suction communicated to the float chamber 9 is controlled by a valve 41 in the air inlet the valve being linked to a throttle valve 40, to move in unison therewith, by a resilient connection permitting the valve 41 to be closed independently for starting purposes. The Venturi 26 may be in two parts bored eccentrically and relatively rotatable to adjust the passage therethrough.
Patent GB-272721-A (GB)
Title: Improvements relating to electrical transformers
IPC: H03H5/02
Filed: 1926-08-28
Abstract: 272,721. Stevens & Co. (1914), Ltd., A. J., and Willson, H. C. Aug. 28, 1926. Transformers; condensers.-A transformer for use as a coupling unit in thermionic amplifiers, particularly those used in the intermediate frequency stage of wireless receiving sets of the supersonic heterodyne type, is structurally combined with one cr more variable condensers connected across one or both of the primary and secondary windings. The windings 5, 6 are disposed between spaced rings 7, 8, 9 held together by a flanged tube 4. A screwed stem 1 secures together the transformer and a condenser comprising a fixed plate 13 centrally dished to engage within a spacing tube 12, and a movable plate 16 carried by an insulating nut 17 on the stem 1. Variation of capacity is effected by rotating the nut 17 to effect axial movement of the plate 16, a lock nut 18 being provided. A sheet of mica 24 is disposed between the plates, and connections to the unit are made at 19, 20, 25, 26, the stem 1 completing the parallel connection of the condenser with the secondary winding 6.
Patent GB-1334164-A (GB)
Title: High-voltage shield insulator
IPC: H01B17/50
Filed: 1971-04-19
Abstract: 1334164 Insulators CARL-ZIESS-STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 19 April 1971 [12 Feb 1970] 21236/71 Heading H2C A high voltage insulator comprises a stem of insulating material, metal caps 6, sheds 5 and semi-conducting layers 7, 8, forming an interrupted semi-conductive path between the ends of the stem. Layers 7, 8 may comprise metal oxide, e.g. titanium or stannic oxide. The shields adjacent to the metal caps may be provided with a semi-conducting layer and preferably have an overhang at least 50% greater than that of the other shields. Metal caps 6 can be cemented to the insulator with conducting or semi-conducting cement, layer 7 extending into the cement together with a contact-making metal layer 12. The insulating material may be of glass ceramic with a substantially zero thermal expansion coefficient.
Patent GB-863491-A (GB)
Title: Highly complex hydride compounds
IPC: C01B6/00
Filed: 1958-07-02
Abstract: New complex hydrides of formula MAlH3X.3BH3 where M is Li, Na, K or 1/2 Ca and X is halogen, CN-, or AlH4- or BH4 in which at least one H atom is substituted by halogen, or CN-, and also such compounds where X is H, are prepared by reacting aluminium borohydride, in the absence of O2 and moisture, with MX.  Where solvents are used, e.g. ethers, thioethers, or amines, the products may be recovered as solvates by crystallisation, or distillation of excess solvent. Saturated aliphatic or aromatic hydrocarbons may also be used as inert liquid reaction media.  Compounds referred to are:-Li AlH3C1.3BH3; LiAlH3Br.3BH3; LiAlH4\t 3BH3; LiAlH3.BH3.CN.3BH3; NaAlH3C1.3BH3; NaAlH3.CN.3BH3; KAlH3.CN.3BH3; Ca(AlH3.Br.3BH3)2; LiAlH3Br.3BH3.3Eth; NaAlH3.CN. 3BH3.3THF; Ca(AlH3C1.3BH3)2.2THF; (Eth= diethyl ether and THF = tetrahydrofuran).  Specification 840,572 is referred to.
Patent GB-795541-A (GB)
Title: Improvements in or relating to furnaces
IPC: F27D1/18
Filed: 1955-07-22
Abstract: 795,541. Door operating devices. OLDFIELD, E. A. WOOD, J. T, and OLIVER H H. June 28, 1956 [July 22, 1955]. No. 21256/55. Class 65(1) [Also in Group XII] A furnace is provided with two coupled doors, the closing of one door automatically opening the other. In Figs. 1 and 2, an L-shaped link 24 is rigidly attached at its lower end to the door 18l, its upper end being connected to the furnace structure by the pivoted link 20. Operation of the shaft 28l by its handle 30 rotates a crank 27 the pin 26 of which engages a slot 25 intermediate the ends of link 24, causing bodily withdrawal and raising of the door. The other door 18r is operated by similar means from its shaft 28r which is coupled to shaft 281 by gears 291, 29r, to cause the shafts to rotate simultaneously in opposite directions.
Patent GB-1440286-A (GB)
Title: Consumable materials containing 1,2-cyclohexanedione and methods for producing same
IPC: A23L29/00
Filed: 1974-05-14
Abstract: 1440286 Flavourings for food and tobacco INTERNATIONAL FLAVORS & FRAGRANCES INC 14 May 1974 [14 May 1973] 21267/74 Headings A2B and A2C [Also in Division A5] A food or tobacco composition comprises a flavour and/or aroma modifying amount of 1. 2-cyclohexanedione. The composition may also contain another cyclodiketone e.g. maltol, cyclotene, or dimethyl-4-hydroxy-3(2H)-furanone. In food the 1, 2-cyclohexanedione is present in an amount of 1 to 50 ppm, and in tobacco in an amount of 500 to 6000 ppm. The 1, 2-cyclohexanedione and othed cyclodiketones may be used in the form of a flavouring composition which also includes sucrose, eugenol, guaiacol, vanillin, ethyl maltol, ethyl cyclotene, methyl cyclopentenolone butyrate, 2, 5-dimethyl-4-hydroxy-3(2H)-furanone. and heliotropin, and a carrier e.g. gum arabic, tragacanth, carrageenan and starch.
Patent GB-1009746-A (GB)
Title: Shield for preventing bodies from falling on workmen in converters and similar vessels having a lining
IPC: C21C5/44
Filed: 1964-05-22
Abstract: 1,009,746. Shield for workmen in converters, &c. BETEILIGUNGS-UND PATENTVERWALTUNGS G.m.b.H. May 22, 1964 [May 25, 1963], No. 21272/64. Addition to 980,567. Heading E1S. The shield of the parent Specification is modified by constructing it of a tube 4 of circular cross-section in annular form secured to the bottom of a frusto-conical shield 5 of chains, netting, fabric or ropes which is supported from the ring 7.
Patent GB-362953-A (GB)
Title: Improvements in or relating to valves particularly acid-proof valves
IPC: F16K3/28
Filed: 1930-07-14
Abstract: 362,953. Acid-proof valves. SWINDIN, N. and NORDAC, Ltd., Reno Works, Rosslyn Crescent, Wealdstone, Middlesex. July 14, 1930, No. 21277. [Class 135.] Elastic valves; materials, special.-In a screw-down valve of the type in which a rubber or like deformable plug 7 is moved to obturate a port and is then expanded to fill the chamber and complete the seal, the valve chamber 1 and the plug 7 and all interior surfaces are formed from firm cured rubber reinforced by perforated sheet metal 2. The screw threads for the pipe connections 5, 6 and the plugs 10, 11 are moulded in the indiarubber, and the valve plug 7 is moulded integral with the spindle 8 which is stiffened by a metal reinforcement 9. The hand-wheel 12 is formed with a depending flange 15 the lower edge of which lies adjacent to markings at 16 on the casing to indicate the degree of opening of the valve. Specification 343,879, [Group XXVIII], is referred to as setting out a suitable rubber composition.
Patent GB-758984-A (GB)
Title: Improvements relating to fused cast refractory articles
IPC: C04B35/107
Filed: 1954-07-22
Abstract: A fused cast body is composed of alumina 75-98.5; silica 1-15; boric oxide 0.5 to 10, in percentages.  0.25 parts of carbon may also be present.  Specifications 448,941, 454,599 and 638,928 [all in Group V] are referred to.ALSO:A fused cast refractory is comprised of in percenetages, alumina 75-98.5; silica 1-15; boric oxide 0.5 to 10. For a denser producer 0.25 parts of carbon may be added to 100 parts of the refractory.  Specifications 448,941, 454,599 and 638,928 are referred to.