baber/WOPTO huggingface dataset:
Patent GB-250218-A (GB)
Title: Improvements in or relating to reflectors for storm lanterns, guard-glasses or the like
IPC: F21V5/00
Filed: 1926-03-23
Abstract: 250,218. Guss-und Tafelglash³tten- Akt.-Ges. April 6, 1925, [Convention date]. Chimneys; globes.-The outer surface of a non- spherical chimney or globe a of a storm or like lamp is provided with a number of similarly shaped prisms b having substantially horizontal totally reflecting upper surfaces adapted to deflect sideways and downwards all rays of light projected upwards from a light source c. The prismatic part has a smooth inner surface and has a somewhat contracted upper end, and the light source c is placed on the axis of, but below, the prismatic part and within a non-prismatic and also somewhat contracted transparent extension. The lower surface e of each prism is arranged parallel to or inclined at a smaller angle to the horizontal than the upwardly directed ray x', Fig. 2, passing through the globe so that no such ray x<1> is totally reflected in an upward direction from the lower surface e.
Patent GB-1025797-A (GB)
Title: Process for obtaining pyruvonitrile from hydroxy-imino acetone
Filed: 1963-02-28
Abstract: Pyruvonitrile is made by the thermal decomposition of the acetyl, benzoyl or propionyl ester of hydroxyiminoacetone, claimed per se, itself, or by a process which comprises heating hydroxyimino acetone with an at least equimolecular amount of acetic anhydride, propionic anhydride or benzoyl chloride at 30-70 DEG  C. until the evolution of heat of esterification ceases, and in a second step heating at from 100-300 DEG  C. until the heat of decomposition ceases, preferably in the presence of a solvent, which may be specifically acetic or propionic acids or anhydrides, xylene, tetralin, tetrachloroethane, cyclohexanone, butyl acetate or diaryl acetate.  The examples describe the operation involving the isolation of the intermediate and without isolation thereof.
Patent GB-1505411-A (GB)
Title: Ultrasonic transducers
IPC: B06B1/06
Filed: 1975-02-27
Abstract: 1505411 Piezo-electric transducers TSENTRAL N I INST TEKHNOLOGII MASHINOSTROENIA 27 Feb 1975 8155/75 Heading H4J An ultrasonic transducer includes a piezoelectric element in the form of a body of revolution whose thickness h at any radial position p is tailored to the desired frequency response K(f) by the equation dh/dp = - phK(f). The frequency response may be flat, linear, logarithmic, quadratic or cubic with one or both end faces profiled. The transducer 63, Fig. 16 is sandwiched between a protective member 62 and a damper 61, and a coil 65 on core 64 forms with the transducer an oscillatory circuit whose resonant frequency is adjustable by a magnet 66 on a screw-coupled 69 holder 67. The drive oscillator (73, Fig. 18, not shown) is incremented in frequency between bursts and an oscillator (75) and filter (77) in the receive circuitry remove the effects of side lobes in the polar response.
Patent GB-165185-A (GB)
Title: Improved apparatus for utilising sound vibrations for ascertaining distances
IPC: G01S7/60
Filed: 1920-03-19
Abstract: 165,185. Fairbrother, H., (Wireless Spitzescope Co.). March 19, 1920. Clutches, friction.-An electrically controlled clutch for transmitting motion from a shaft 6 to a shaft 7 comprises a collar C<1> sliding on and rotating with shaft 6, the collar forming the core of a solenoid A and having a disc to which are pivoted dogs 6<1> adapted, when solenoid A is energized, to engage the inner surface of a cylindrical member secured to shaft 7. The inner ends of the dogs have a bearing in an annular groove of a collar 13<1> secured to shaft 6.
Patent GB-490073-A (GB)
Title: Process for the manufacture of derivatives of 2.6-dihydroxypyridine-4-carboxylic acid
IPC: C07D213/79
Filed: 1937-03-22
Abstract: Monoethers of 2 : 6-dihydroxypyridine-4-carboxylic acid and its esters are manufactured by causing 2 : 6 - dihydroxypyridine - 4 - carboxylic acid or an ester thereof to react with an aliphatic or cycloaliphatic alcohol, advantageously in the presence of thionyl chloride, sulphuric acid or perchloric acid as condensing agents, and, if desired, saponifying the resulting ether-ester to the ether-acid.  The products are intermediates for the manufacture of pharmaceutical preparations.  In examples: (1) 2 : 6 - dihydroxypyridine-4-carboxylic acid is heated with butyl alcohol and thionyl chloride to produce 2-hydroxy - 6 - butoxypyridine - 4 - carboxylic acid butyl ester, which yields the free acid on saponification; (2) 2 : 6-dihydroxypyridine-4-carboxylic acid cyclohexyl ester is heated with cyclohexanol and sulphuric acid to yield 2-hydroxy-6-cyclohexyloxypyridine-4-carboxylic acid cyclohexyl ester, from which the free acid is obtainable by saponification; (3) 2 : 6-dihydroxypyridine-4-carboxylic acid is heated with isoamyl alcohol and perchloric acid, yielding 2 - hydroxy - 6 - isoamyloxypyridine - 4-carboxylic acid isoamyl ester; the free acid is also described; 2-hydroxy-6-ethoxypyridine-4-carboxylic acid ethyl ester may be similarly prepared.
Patent GB-287564-A (GB)
Title: Improvements in or relating to water closets
IPC: E03D1/28
Filed: 1928-03-19
Abstract: 287,564. Henrekson, J. W., (Assignee of Sesam Aktiebolag). March 24, 1027, [Convention date]. Valve-discharge water-waste preventers; com. bined with closet basins; seat action.-A flushing water chamber 2, surrounding a closet basin, has an outlet 6 closed by a ring member 3 against the action of springs 4, when the seat 8 is depressed, an inlet valve being simultaneously opened through the rod 10 from the ring 3. The inlet valve may also be opened through a lever 11 and chain 13, by raising the seat into a vertical position; the seat is caused to fall, when released, by a spring-pressed plunger 14. In a modification, the chain 13 is connected to a lever, one end of which carries the plunger 14. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a form in which the chain 13 is connected to a hand lever. This subject-matter does not appear in the Specification as accepted.
Patent GB-681675-A (GB)
Title: Improvements in and relating to leak detectors
IPC: G01N27/70
Filed: 1951-04-11
Abstract: 681,675. Determining presence of substances in vapours. BRITISH THOMSON-HOUSTON CO., Ltd. April 11, 1951 [April 26, 1950], No. 8402/51. Class 37. Relates to apparatus as disclosed in Specification 648,367, in which the vapour under test is drawn over a heated electrode 3 so that the presence of a substance such as an alkaline metal produces positive ions which are collected by a negatively charged electrode 5, the resulting current being measured at A. According to the invention, the inlet 15 for the vapour under test is of smaller diameter than the spacing between electrodes 3, 5.
Patent GB-512583-A (GB)
Title: Improvements in preparation of salts of hexamethylenetetramine
IPC: C07D487/18
Filed: 1938-03-18
Abstract: 512,583. Hexamethylenetetramine salts. TISZA, E. T. March 18, 1938, No. 8441 [Class 2 (iii)], Hexamethylenetetramine is converted into its salts with aromatic-aliphatic carboxylic acids containing the carboxyl group in a saturated or unsaturated aliphatic side chain having direct carbon linkage with the aromatic nucleus. The two components are dissolved in equimolecular proportions in a non-aqueous solvent, such as methanol, ethanol, isopropanol, acetone, chloroform, carbon tetrachloride and ethylene dichloride, and after refluxing, the crystallized product separates out. Preferably the acid contains 2-6 carbon atoms in the side chain, which latter may also be substituted by. a hydroxy group.' The products possess therapeutic properties. Examples describe the preparation of the d-, l- and dl-mandelates; hydrocinnamate, cinnamate and #-hydroxyhydrocinnamate of hexamethylenetetramine, and reference is made to the phenylacetate and gamma-phenyl-butyrate.
Patent GB-661298-A (GB)
Title: Rowing action reversing device
IPC: B63H16/10
Filed: 1949-03-29
Abstract: 661,298. Bow facing oars. NICOLAS, J. H. March 29, 1949 [March 31, 1948; March 23. 1949], Nos. 8470/49 and 8471/49. Class 114. In a rowing action reversing device comprising a stationary support 1 adapted to be fixed on one of the gunwales of the boat, a movable support 2 carried by the stationary support and rotatably mounted about pivots 3, the movable support 2 carrying two parallel pivots 0<SP>1</SP>, 0<SP>4</SP>, and two tubular elements or sockets 4, 5, which are connected to one another by a link 6, the sockets 4, 5, are respectively rotatably mounted about each of the pivots 0', 0<SP>4</SP> and are respectively adapted to accommodate and retain the oar proper and an actuating handle adapted to impart to the oar the movements and efforts of the rower, the relative positions of the various parts being such that any upward or downward movement of the handle produces, by rotation of the movable support about its pivots, a downward or upward movement of the oar, whereas any forward or backward movements of the handle produces, by rotation of the socket about its pivot, a movement of the oar in the same direction. In a modification provision is made for the lubrication of the relatively moving parts.
Patent GB-223499-A (GB)
Title: Improvements in ships' anchors
IPC: B63B21/44
Filed: 1923-09-28
Abstract: 223,499. Hingley & Sons, Ltd., N., .Osborn, A. E., Norman, W., and Fletcher, J. E. Sept. 28, 1923. Anchors.-In anchors such a.s are described in Specification 215,411 in which the head and flukes are in one piece, the trunnion pin 2 is passed through a lateral recess 9 into engagement with the shank 1 which is inserted through a central aperture 11. The trunnion pin is held in position by a pin 8 locked in position by a bolt 15 which is passed through the metal of the head. In a modification, the trunnion pin extends right through an aperture cut laterally across the anchor head and is secured by rivets, no separate holding bars being necessary.
Patent GB-1164607-A (GB)
Title: Novel Oxdiazole Derivatives and Their Use as Scintillation Substances
IPC: C07D271/10
Filed: 1966-08-26
Abstract: 1,164,607. Oxdiazole derivatives. CIBA Ltd. 26 Aug., 1966 [15 Sept., 1965], No. 8587/69. Divided out of 1,164,606. Heading C2C. The invention comprises the compounds of formulµ The first of these compounds is made by reacting diphenyl-4-carboxylic acid hydrazide with 4-tertiary butyl benzoyl chloride and treating the product with thionyl chloride; the second and third compounds are prepared by reacting 4-isopropylbenzoyl chloride and 4- tertiary butyl benzoyl chloride respectively with oxalic acid dihydrazide and treating the product with thionyl chloride.
Patent GB-1495407-A (GB)
Title: Metal extraction process
IPC: C22B3/00
Filed: 1975-03-03
Abstract: 1495407 Metal extraction processes; purifying nickel-containing solutions INCO Ltd 3 March 1975 [18 March 1974] 8697/75 Heading C1A Metals are extracted from aqueous acidic solution by means of a water-insoluble quaternary ammonium thiocyanate or a solution thereof in a water-immiscible organic solvent, followed by separation of the aqueous and organic phases, the extraction process being characterized by the inclusion in the aqueous solution of thiocyanate ion, derived from a source other than the quaternary ammonium thiocyanate, in an amount not exceeding 110% of that stoichiometrically equivalent to the extractable metals present, as defined by the relationship where # is the summation operator, and A is the positive valency of the extractable metal, Me. The metals specified as extractable by the process are bismuth, cadmium, cobalt, copper, indium, iron, mercury, molybdenum, palladium, tin, uranium and zinc. Nickel is not extracted by the process and the method can be used for the purification of nickel containing solutions obtained during hydrometallurgical recovery of nickel from ores and residues. The metal values may be stripped from the organic phase by aqueous alkali solutions, e.g. solutions of NaOH 2  or NH 3  or an ammoniacal carbonate solution. Suitable quaternary ammonium thiocyanates are methyl tri-capryl ammonium thiocyanate and a dialkyl dimethyl ammonium chloride known as "Arquad 2C" ("Arquad" is a Registered Trade Mark).
Patent GB-109629-A (GB)
Title: Improvements in Mechanism for Producing an Intermittent Rotary Motion.
Inventor: GLEDHILL ARTHUR HENRY
IPC: F16H27/04
Filed: 1916-06-21
Abstract: 109,629. Gledhill, A. H. June 21, 1916. Counters with snap action; transfer mechanism. -In means for converting reciprocating into intermittent rotary motion, specially applicable to the time-type actuating mechanism of workmen's time-recorders, an arm a raised slowly and lowered quickly by a snail cam a<1> and spring a<2> or by a connecting-rod &c. carries a pinion A gearing with a driven pinion B. Detents a<3>, b<1>, coacting with the pinions A, B are so controlled by a projection a<5> and recess b<2> in a disk C turning with the cam a<1> that during the rise of the arm a the pinion B is locked and the pinion A rotates idly, and during the fall of the arm the pinion A is locked and rotates the pinion B, forcing the detent b<1> into the recess b<2>. The pivot of the arm a may be concentric with the pinion B. As applied to a time-recorder, Fig. 4, the minute-wheel D drives the hour-wheel E by any known means and is secured to a pinion d rotating a spindle f<1> once in twelve hours. The spindle f<1> carries the cam a' and the pinion B is secured to the day-wheel F, which is advanced twice a day to change from vertical to horizontal lettering.
Patent GB-1534180-A (GB)
Title: Beds
IPC: A61G7/02
Filed: 1976-03-05
Abstract: 1534180 Invalid bed with sanitary convenience NIPPON FELT CO Ltd 5 March 1976 [7 March 1975 29 March 1975 4 April 1975 18 June 1975] 08811/76 Heading A4J In an invalid bed provided with a bed pan 13 mounted below a mattress 3 for movement into alignment with a central aperture 4 in the mattress, the central aperture is closed by first and second auxiliary mattresses 5 and 6 and the bed pan is supported by a trolley 12 mounted on rails 9 and connected to a pair of crossed arms 11 adjustably supporting the first auxiliary mattress 5 such that horizontal movement of the trolley is accompanied by vertical and horizontal movement of the first auxiliary mattress. The trolley which is moved along the rails 9 by an endless chain 27 is provided with a pair of parallel bars 52, 55, bar 52 being connected to the trolley by pin and slot connections and to the lower supporting shaft 49 of the arms 11 and bar 55 having a bevel 56 in contact with a bevel 57 on a further bar 51 connected to shaft 49. A cam 58 on bar 51 engages the other lower shaft 50 to prevent movement of the arms when the auxiliary mattress is in use. When it is desired to use the bed pan, the chain 27 is moved by a handwheel to cause the trolley to move horizontally. During initial movement of the trolley the two bevels 56, 57 slide over one another to cause disengagement of the cam and the shaft 50. After disengagement of the cam the bar 52 moves shaft 49 away from shaft 50 until the mattress 5 is lowered, after which the mattress 5 and arms 11 are moved horizontally to an out-of-use position below the main mattress. In this position the bed pan is ready for use. A pivoted link 37 connects the second auxiliary mattress 6 with the trolley and, as the trolley moves, causes the second mattress 6 to pivot upwardly until the link is vertical and then downwardly until the mattress 6 is horizontal. A crotch cover 22 is pivotally connected to the bed pan and is movably connected with the second auxiliary mattress.
Patent GB-566395-A (GB)
Title: Improvements relating to the production of hot water bottles
IPC: B29D22/00
Filed: 1943-06-02
Abstract: 566,395. Moulding hotwater bottles. HOLT, T. W. June 2, 1943, No. 8860. [Class 87 (ii)] The invention relates to a known process in which two similar sheets of rubber c, d are placed in the similar parts a, b of a two-part mould, the mould is then closed to press the tacky edges of the sheets together, the space between the sheets is filled with water through a plug which is then closed, and the mould is then heated to produce an internal pressure which moulds and cures the rubber. According to the invention, the plug e is screwthreaded to produce a thread in the neck.
Patent GB-1380851-A (GB)
Title: Component for a bracelet
IPC: A44C5/02
Filed: 1973-02-23
Abstract: 1380851 Bracelets TEXTRON Inc 23 Feb 1973 [18 Sept 1972] 8993/73 Heading A3H A component for use in making a bracelet comprises an elongate strip 10 of plastics material which is flexible transversely of its thickness having a series of grooves 11 extending inwardly from its bottom surface to provide a series of parallel raised elements 12 between the grooves, the upper surface of strip 10 being flat and devoid of grooves, a series of bottom shells 15 each shell having a bottom wall 16 positioned adjacent to the surface of one of the raised elements 12 and parallel side walls 17 positioned adjacent to the sides of one raised element, and a series of top shells 22. Each top shell has a top wall 23 positioned adjacent to the upper surface of strip 10, top walls 23 having side edges. The side edges of adjacent top shells 22 are adjacent to each other to present a substantially continuous upper surface. The top shell 22 also has end walls 24 extending from the ends of the top wall 23 adjacent to the sides of strip 10, the ends of the respective raised element 12 and thence inwardly adjacent to end portions of the bottom wall 16 of the associated bottom shell 15. The end walls 24 of the top shell 22 secure the series of top and bottom shells 22, 15 together in pairs, so that the strip 10 is substantially obscured from view by shells 22, 15 and the bracelet component is flexible transversely of its thickness.
Patent GB-987457-A (GB)
Title: Formaldehyde purification
IPC: C07C/
Filed: 1962-03-09
Abstract: Formaldehyde is purified by contacting a formaldehyde-containing gas stream, especially one obtained from the oxidation of methanol, with an aqueous solution of an aliphatic polyhydric alcohol having a boiling point higher than 200 DEG  C. and a vapour pressure lower than 2 mm. Hg at 100 DEG  C., allowing the water to evaporate and decomposing the resulting hemiformal.  Especially suitable polyhydric alcohols are pentaerythritol and trimethylol propane, and the description also lists among other suitable diethylene and triethylene and higher polyglycols, dipropylene glycol, butane, pentane and hexane triols and hexitols.  In the examples, described with reference to a flow sheet (not shown) the hot formaldehyde bearing gas stream from a methanol oxidation process is contacted with the polyol solution counter-current in a column, residual water is removed down to 0.5% or preferably 0.1% from the resulting formal in a vacuum evaporator and the product is decomposed by heating in a column to give pure formaldehyde suitable for polymerization. The recovered poly-ol is recirculated to the absorber, pentaerythritol and trimethylol propane being the ones exemplified.
Patent GB-851521-A (GB)
Title: Improvements in or relating to draught excluder strips
IPC: B60J10/00
Filed: 1956-03-23
Abstract: 851,521. Draught excluders. BRIGHT, T. J. R. June 21, 1957 [March 23, 1956], No. 9177/56. Class 20(3) [Also in Group XXV] A draught excluding strip, Fig. 2, comprising a continuous clip 1 of substantially inverted U- shape in cross-section intended for application to a supporting flange 5 and capable of universal bending movement throughout its length, the clip having a fabric or like covering 9 and carrying a rubber or other comparatively soft but resilient sealing component 6, 7, is characterised in that one or both limbs of the U- shaped clip are formed with inwardly-pressed, sharp-pointed tangs 4 which perforate the covering material 9 to make frictional engagement with the flange 5 to hold the clip 1 frictionally in position thereon. In another embodiment (not shown) the effective and attachment portions 6, 7 are formed integrally of sponge rubber and the edge of the attachment portion 7 abuts the edge 10 of the covering material 9. In a further embodiment (Fig. 3) the inverted U-shaped part of the member 7 is omitted and the edge of the clip is received in a longitudinal slit 14 in a thickened upstanding part of the member 7 having serrations 15 engaging the flange 5. In a still further embodiment (not shown) the effective portion 6 is attached, e.g. by vulcanising to a U-shaped attachment portion which fits closely around the fabric-covered edge of the clip and contacts the supporting flange along the outer surface of its inner limb. The clip 1 is formed with transverse slots 2 co-operating on alternate sides with slits 3 where the tangs 4, which may be of different sizes, are pressed inwards. Specifications 649,137, 707,757, 803,142, and 838,054 are referred to.
Patent GB-1038554-A (GB)
Title: Apparatus for generating magnetic flux
IPC: H01F6/00
Filed: 1963-03-08
Abstract: 1,038,554. Electric coils. WESTERN ELECTRIC CO. Inc. March 8, 1963 [March 22, 1962], No. 9225/63. Heading H1P. An apparatus for generating magnetic flux comprises in the embodiment shown at least two cylindrical layer coils 1, 2 of superconducting wire interconnected to form a closed loop, means for establishing a magnetic field H 0  in a direction substantially parallel with the coil axis while the loop is in a normal conducting state, means for cooling the loop to a temperature below the superconducting transition temperature of the wire after current induced in the loop by the field has decayed, and means for reducing or eliminating the field. The wire may be Nb-Zr or Nb 3 Sn, as described in Specification 941,339, and have an outer coating of normal conducting material, such as disclosed in Specification 952,226. The field may be adjusted by the application of a further external field H 0 <SP>1</SP>, poled in either direction, after the loop has become superconductive. In other embodiments the coils comprise superimposed layers in either a long solenoid or a pancake-type coil.
Patent GB-934770-A (GB)
Title: Torque integrator
Inventor: SLATER JOHN MCELROY
IPC: G01P7/00
Filed: 1961-03-14
Abstract: 934,770. Electric indicating systems. NORTH AMERICAN AVIATION Inc. March 14, 1961, No. 9225/61. Class 40 (1). The time integral of velocity or force is determined by means of a mass deflected in response to an acceleration and connected to an eddy current member in a field produced by a rotating magnet. The arrangement being that movement of the mass is detected by a pick-off member which controls the speed of a motor rotating the magnets to control the disc position; the revolutions are then counted to provide a measure of speed. In the embodiment shown, accelerations along axis 45 move copper or aluminium disc about axis 11. The movement of part 10 attached to the disc is detected by means of a coil 16 attached to it which receives a signal induced from an A.C.- fed balanced core arrangement 14 when the disc moves. This signal is amplified at 19, and fed through a phase-sensitive demodulator 20 to detect the direction of the acceleration. This signal passes through a frequency compensation network 21 and is again amplified at 22, finally being passed through a phase synchronized rectifier 23 and driving a servomotor 1. The motor rotates at a speed proportional to the acceleration to spin magnet assembly 6 and restore disc 9 to its original position. Revolution counter 25 then indicates motor speed directly. Force may be measured instead of acceleration in which case the device gives the time integral of the force. In this case an unbalanced mass is not necessary and the rotating magnets may act directly on disc 10. High-frequency oscillations may be damped out by feed-back through a highfrequency filter 27 and amplifier 28 to a torquer acting on disc 10. In the arrangement shown in Fig. 4, the motor drives a drag-cup and the torque is applied to a magnet 40 mounted in a fluid 43. An arrangement is described with reference to Fig. 2 (not shown), in which the varying conductivity of the eddy current disc with temperature is compensated for by mounting the disc in a fluid whose buoyancy and thus the pendulosity of the concentrically mounted mass varies with temperature.