baber/WOPTO huggingface dataset:
Patent GB-112989-A (GB)
Title: Improvements in Facepieces for Optical and other Sighting, Observation and like Instruments.
IPC: G02C3/00
Filed: 1917-02-02
Abstract: 112,989. Barr & Stroud, and French, J. W. Feb. 2, 1917. Sights.-Consists in forming eye-protectors or face-pieces for optical instruments such as sighting-telescopes of a cushion or cushions capable of variable distension by means of air or other fluid. The cushions may be made of rubber or fabric and may have walls of varying thickness, or springs, or both of these means for causing them to assume a desired shape. As shown in Fig. 1, a rubber eye protector has an air cavity 3 bounded by an external wall and a thinner inner wall and is distended more or less by means of a flexible ball 5 connected to it by a tube 4. In a modification, Fig. 2, the cushion 3 is of fabric and may be distended, as indicated in broken lines, by means of a tube 4 and mouth piece 5<1>, or other means which permits inflation and deflation. The'walls of the cushion may be corrugated as shown in Fig. 4, and may or may not be provided with an external spring, as shown, or an internal spring. Two forms of face-piece for binocular instruments are described, each comprising a cushion against which the brow is pressed. One of them comprises also a cushion against which the nose is pressed, and the other comprises a cushion for surrounding the brow and cheeks.
Patent GB-606762-A (GB)
Title: Improvements in or relating to blocking-layer cells
IPC: H01L23/48
Filed: 1946-01-18
Abstract: 606,762. Asymmetrically-conducting resistances. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Jan. 18, 1946, No. 1757. Convention date, April 21, 1941. [Class 37] [Also in Group XL (c)] A blocking layer cell of the dry rectifier type has at least one grid embedded in the blocking layer, wherein the emissive capacity of the grid at its surface facing the anode is at the most equal to that of the anode. In a preferred example, the anode 1 of copper plate carries a layer of cuprous iodide 2, followed by a blocking layer of canada balsam 3, carrying a grid layer 4 of conducting selenium. This 'carries a second blocking layer 5 of chlorinated rubber lacquer, on which is a silver cathode 6. The grid supply conductor 7 is supported by a boss 8 on the blocking layer to prevent conductor-anode electron emission. Alternatively, the grid may have a higher emissivity capacity than both electrodes, with suitable covering layers on each surface. Specification 454,826 is referred to. '
Patent GB-839747-A (GB)
Title: New hydrophenanthrene compounds
IPC: C07D307/00
Filed: 1956-05-23
Abstract: The invention comprises hydrophenanthrenes of the general formulae <FORM:0839747/IV (b)/1> <FORM:0839747/IV (b)/2> wherein R1 is a free or functionally converted oxo group, R2 is a hydrocarbon residue, X is an oxo group or a free or functionally converted hydroxyl group together with a hydrogen atom, and Y is a hydrogen atom or a free or functionally converted hydroxyl group, and their derivatives unsaturated in the nucleus. Specified functional derivatives include esters, ethers, thioethers, thioesters, thiol and thion esters, acetals, mercaptals, ketals, enol ethers and esters, hydrazones and semicarbazones.  The compounds are prepared from the corresponding compounds containing in position 2 the grouping -CH2C(OH)(R3)CH2OH, by splitting the glycol when R3 is a methyl group, or when R3 is a hydrogen atom by esterifying the primary OH group and oxidizing the secondary hydroxyl group to an oxo group, and if desired liberating the protected OH group; alternatively from the corresponding 2-methallyl compounds by treatment with ozone and reductive cleavage, yielding the 2-acetonyl compounds.  The 1-substituted ethenyl compounds are further obtainable by reduction of the corresponding 1-ethinyl compounds, e.g. with complex hydrides or by hydrogenation. Detailed examples illustrate the preparation of the (2 --> 4b ) lactone of D 8a-1-ethoxyethenyl-2a  - acetonyl - 2b  - carboxy - 4bb - methyl - 7-ethylenedioxy - 1,2,3,4,4aa ,4b,5,6,7,8,10,10ab -dodecahydrophenanthrene - 1,4b - diol, its 1-ethoxyethinyl analogue, and isomeric (2 --> 4b ) lactones of D 8a - 1 - ethoxyethenyl - 2a  - (21-oxo - 31 - acetoxypropyl) - 2b  - carboxy - 4bb -methyl - 7 - ethylenedioxy - 1,2,3,4,4aa ,4b,5,6, 7,8,10,10ab  - dodecahydrophenanthrene - 1,4b -diol.  Specification 839,748 also is referred to.
Patent GB-1246408-A (GB)
Title: Electrical cables
Inventor: EVANS FREDERICK PETER
IPC: H01B7/282
Filed: 1969-01-13
Abstract: 1,246,408. Cable joints. MONSANTO CHEMICALS Ltd. 4 Dec., 1969 [13 Jan., 1969], No. 1851/69. Heading H2E. A joint in a polyolefin-sheathed electric cable is sealed with a copolymer of an olefin having 2 to 4 carbon atoms, e.g. ethylene, propylene and butylene, and an unsaturated ester, e.g. vinyl acetate, ethyl acrylate and allyl methacrylate. To make the joint, the individual joined conductors are given a protective covering, a sleeve, optionally removable is placed around the joint and the heat-softened copolymer introduced by injection-moulding. It may include an anti-oxidant or carbon black.
Patent GB-214702-A (GB)
Title: Improvements in or relating to commutator dynamo-electric machines
IPC: H02K13/10
Filed: 1923-01-20
Abstract: 214,702. Japolsky, N., and Kostenko, M. Jan. 20, 1923. Commutators; alternating-current commutator machines; machines with two or more armatures. -In a commutating machine in which the width of the insulation between the segments is greater than or equal to the brush width and in which the brushes are never all at one time situated on the insulation, each pole pair has more than two brush sets so positioned with regard to the commutator that the potential of each set is different from that of each of the others and at least two sets bear at every instant on the segments so that the circuit is never interrupted. Fig. 1 shows a bipolar machine the rotor R of which is fed through stator coils Is, 2S - - from the starconnected secondary 1T, 2T - - of a supply transformer T, the primary of which takes 3-phase current at I, II, III. The widths of the commutator segments and insulation are respectively 0.9 and 1.1 times the brush width, with the result that the brushes fall into two groups 1, 3,. 5 and 2, 4, 6 similarly placed with regard to the commutator segments at any instant and giving a constant total area of contact surface. To avoid breaking inductive circuits at the commutator, the sections of the supply transformer 1T, 2T - - and the stator coils Is, 2S - - may le connected in a closed mesh, as in Fig. 2, the brushes 1, 2 - - being tapped off at the nodal points. The self-induced voltage of commutation mav also be taken up inductively by providing the machine with two or more identical and mutually inductive systems, as in Fig. 3, which shows also the use of a transformer T giving an asymmetrical polyphase supply to the commutator machine. The commutators of the several systems may be relatively displaced so that when the current in any part of one winding is decreased that in the corresponding part of another winding is increased and the aggregate field due to all the windings is substantially constant. The several windings may be electrically connected either at equipotential points or through resistances to reduce equalizing currents. The application to continuous-current machines is shown in Fig. 8 in which G is a dynamo connected to a motor M, the field windings being shown at F<1>, F<2>. Nine brushes are employed, of which only three can be out of contact with the commutator segments at one time so that at least three of the nine leads between the machines are always carrying current. In all the forms illustrated, the machines are bipolar.
Patent GB-372715-A (GB)
Title: Improvements in the destructive hydrogenation of carbonaceous materials
IPC: C10G1/06
Filed: 1932-01-22
Abstract: In making changes in the type of carbonaceous material fed to a destructive hydrogenation plant, gradually increasing amounts of the new material are added to the feed, to avoid an abrupt change in working conditions.  In an example a reaction vessel 7 is fed through a heating coil 5 and preheater 4 with crude kerosene from a tank 1, or alternatively with heavy fractions such as low quality lubricating distillates from a tank 23.  The oil from tank 1 is withdrawn by a low pressure pump 2 and supplied at 3 \ba1/2\be atmospheres to a high pressure pump 3 operating at constant speed and <PICT:0372715/III/1> delivering at 200 atmospheres.  A second low pressure pump 24 draws oil from tank 23 and delivers it to pump 3.  The steam supply for the pumps 2 and 24 is regulated by a constant pressure control 25 attached to the suction side of pump 3.  When pump 24 is stationary, feed from tank 1 alone is delivered to the reaction vessel; on gradually increasing the delivery of pump 24, by hand control, the delivery of pump 2 is correspondingly and automatically decreased by the control 25, until finally only stock from tank 23 is being delivered.  Any necessary change in the steady rate of pump 3 is made during the change-over.  An alternative method of changing feed stock is by use of a surge tank, containing 2-4 hours supply of oil, situated between the stock tanks and high pressure feed pumps.  The supply to this tank may be changed abruptly to the new stock; by keeping the contents of the tank well mixed, a blended stock is fed to the plant, changing gradually from the old to the new stock.  A suitable rate of substitution is 10 per cent in 10 minutes.  Where the stocks differ widely in hydrogenation characteristics, the rate should not exceed 2 per cent in 15 minutes.  When changing from a higher boiling oil to a lower, it is advisable first to substitute an intermediate oil, which remains in liquid phase under the initial operating conditions but evaporates on addition of the lower boiling stock, and to feed this intermediate oil until all unvaporizable substances are removed.
Patent GB-689278-A (GB)
Title: Improvements in or relating to the production of paper or paper pulp
IPC: D21B1/32
Filed: 1951-01-26
Abstract: 689,278. Preparation of paper pulp. AKTIEBOLAGET DEFIBRATOR. Jan. 26, 1951. [Jan. 30, 1950] No. 2036/51. Class 96. Paper or paper-board, &c. is made from waste paper, &c. containing bituminous materials or wax, e.g. with jute, &c., which is reduced in a beater, thickened, as at 11, conveyed, by a screw 13 to a press 14, to a hopper 16, and to a screw-press 19 which forms a plug to withstand steam pressure in a heater 17 supplied with steam at 20, the heated pulp being discharged at 21 to an Asplund defibrator to disperse the bituminous particles, &c. thoroughly. Specifications 393,159 and 597,668 are referred. to
Patent GB-100075-A (GB)
Title: Improvements in Radio-telegraphy.
Inventor: BETHENOD JOSEPH
IPC: H03B11/02
Filed: 1916-02-11
Abstract: 100,075. Bethenod, J., and Girardeau, E. Feb. 11, 1915, [Convention date]. Addition to 100,058. Electric oscillations, producing.-Relates to the method of producing oscillations described in the parent Specification, in which the discharge of the main condenser C is timed by the discharge of an auxiliary condenser K connected in parallel with the main condenser through an adjustable resistance r and inductance l. According to the present invention, an additional condenser K<1> of small capacity is connected across the terminals of the main spark-gap E, and the natural period of the circuit including the condensers C, K<1>, and the inductance S is made equal to the natural period of the auxiliary exciting-circuit K s e, so that the main spark-gap is broken down by the resonance voltage across the terminals of the condenser K<1>. A further condenser K<11> may be arranged in parallel with the inductance s in the auxiliary exciting-circuit.
Patent GB-491244-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D29/22
Filed: 1937-01-25
Abstract: A centrifugal pump for liquids or pulp containing sand, gravel, &c. has some or all of its interior parts formed, coated, or filled wholly or in part by a substance comprising hard granular wear-resistant material held together by a bonding material.  The wear-resistant materials include emery, bort, corundum, quartzite sand, or other abrasives: and the bonding materials include synthetic resins or rubbers, or organic plastics.  In the case of a coating the mixture may be painted or sprayed on, or the bonding material sprayed in a molten condition, the abrasive then sprinkled on, and the whole heated to consolidate the coating, while the surfaces to be coated may be prepared by roughening, painting, spraying, or electroplating. The impeller is formed by moulding under pressure a composition such as a mixture of corundum and synthetic resin.
Patent GB-674164-A (GB)
Title: Heat stabilizer for vinyl resins
IPC: C08K5/098
Filed: 1949-01-26
Abstract: Polyvinyl halides or copolymers thereof, e.g. a polyvinyl chloride-diethyl maleate copolymer, are stabilized by incorporating 1 to 5 per cent of a stannous salt of an organic acid, e.g. lauric, palmitic, stearic, arachidic, behenic, oleic, linoleic, linolenic, ricinoleic, salicylic, succinic, benzoic, tartaric, lactic, naphthenic, phthalic and abietic acids.  To facilitate drying, stannous stearate may be coprecipitated with a high melting point metallic soap, e.g. barium or calcium stearate, and used in this form.  Dioctyl phthalate may also be added.ALSO:Stannous stearate is prepared by the addition of an aqueous solution of stannous chloride to an aqueous solution of sodium or potassium stearates prepared from stearic acid and caustic soda, soda ash, or potassium hydroxide.  The precipitate is filtered, washed with water and dried.  Alcoholic solutions which may be used yield purer products and coprecipitation of stannous stearate with a high melting point soap, e.g. barium or calcium stearate by the partial substitution of barium or calcium chloride for the stannous chloride, yields a mixed product with a higher softening point.
Patent GB-862380-A (GB)
Title: Improvements in assemblies for use in dropping loads by parachute from aircraft
IPC: B64D1/14
Filed: 1959-01-20
Abstract: 862,380. Packaging. BLACKBURN GROUP Ltd., and CLARK, F. M. Jan. 20, 1959, No. 2165/59. Class 94(1). [Also in Groups XXX and XXXIII] Fig. 1 is a side elevation of an assembly for dropping by parachute from an aircraft, and Fig. 5 is a section on line V-V of Fig. 1. A plywood base 1 is provided with two or more battens 2, and the load on the base is enclosed by four hardboard walls 9 (one shown). A set 4 surrounds the walls, and loops of the net are passed through holes at the edges of the base and engaged by a rope 5 passing round the base. The upper edge of the net is gathered together to enclose the load. A layer of shock absorbing material may be applied as in Specification 829,401.
Patent GB-851426-A (GB)
Title: Improved variable-ratio power transmission mechanism
IPC: F16H61/02
Filed: 1958-05-06
Abstract: 851,426. Change-speed control. GENERAL MOTORS CORPORATION. May 6, 1958 [May 6, 1957], No. 2226/60. Divided out of 851,424. Drawings to Specification. Class 80 (2). The subject-matter is the same as that in Specification 851,424, but the claims are directed to the relay valve 301 (see Specification 851,424) which produces upshift to overdrive in the front gear unit when the manual control valve 291 selects the higher of the two reverse ratios. Specifications 796,948 and 851,425 also are referred to.
Patent GB-608585-A (GB)
Title: Improvements in or relating to eyepieces for optical sighting devices
IPC: G02B25/00
Filed: 1945-01-29
Abstract: 608,585. Eyepiece systems. KODAK, Ltd. Jan. 29, 1945, No. 2256. Convention date, Nov. 20, 1943. [Class 97 (i)] In an eyepiece comprising a biconvex positive component between two outer positive components convex thereto separated by an aggregate distance less than one-third of the focal length F of the eyepiece, the average refractive index difference (Nn-Np) at cemented surfaces of the outer components is less than .08, and the average power thereat less than .05 F, Nn-Np being the refractive indices of the negative and positive elements respectively. Numerical data are given for eyepieces comprising a simple positive lens III between two positive doublets, the doublet I, II farther from the eye being meniscus and concave to the object. To enable the eyepiece to be used with systems having orbit pupils at different distances, a weak negative lens may be placed before the objective. Data for such a lens are given. Specification 608,586 is referred to.
Patent GB-854255-A (GB)
Title: Free piston engines
IPC: F02B71/04
Filed: 1959-01-21
Abstract: 854,255. Free piston engines. STEWART-WARNER CORPORATION. Jan. 21, 1959 [Jan. 23, 1958], No. 2309/59. Classes 7(1) and 7(2). A free piston engine comprises a pair of opposed free pistons capable of relative movement and disposed within a cylinder with a cushioning compression chamber between them and a pair of combustion chambers at opposite outer ends of the cylinder. The invention is shown applied to free piston gas generators. In Fig. 1 the principal air compression chamber 10 is located between the heads 4 of the two pistons an auxiliary compression chamber 11 is located between each of the pistons and the adjacent cylinder section of the engine block. These auxiliary chambers constitute a pneumatic sensing mechanism. The action of air compressed in the chambers 11 is used to effect initiation of the power stroke. The power stroke initiating device 23 may be an actuator for the plunger of the injection nozzle 8. It is stated that the pistons will be driven to approach synchronism and within a few strokes will be completely synchronized. Starting may be effected by supplying air through the valves 14. In a modification (not shown) the fuel injection is controlled by pressure actuated circuit making devices and solenoids. Each solenoid is incorporated in a solenoid fuel valve or solenoid controlled injection mechanism. In Fig. 6 the space 44 between the pistons 45, 47 is utilized as a bounce space and the spaces 46 are compression spaces. The cross timing devices are worked from the combustion chambers. In Fig. 7 the conduits 65 connected to injector mechanisms 58 lead directly to one another likewise conduits 66 connected to combustion chambers 53 (or to auxiliary air compression chambers 11 in Fig. 1) lead directly to one another. Intermediate portions of the connected conduits 65 and the connected conduits 66 are joined one to the other by a short conduit 67. Specification 434,921 is referred to.
Patent GB-284286-A (GB)
IPC: F02M1/00
Filed: 1928-01-24
Abstract: 284,286. Ateliers Bariqnand et Marre. Jan. 27, 1927, [Convention date]. Spray carburettors.-In a multiple-jet carburettor, the number of jets in action is controlled by a. valve actuated by an engine-driven governor. The casing 9 is jacketed by exhaust gases or cool. ing water at 7 and is of conical form to accommodate a conical valve 6 provided with ports 34, 34<1>, &c., adapted as the valve is rotated, to bring into action in succession passages such as 14, 14', &c. open at their lower ends to the atmosphere and containing fuel nozzles 24, 24<1>, &c. The valve 6 is held on its seating by a spring 43 pressing against an arm 3, which is actuated, as shown in Fig. 1, from the engine-driven governor 1 through a link 44, arm 45, cam 46. and flexible member 49. The arm is loaded by a spring 40 which, when the governor is not in action, holds it against a stop 39. The outlet passage 19, Fig. 2, is provided with a throttle valve 20 actuated by an arm 23, and with a by-pass nozzle 70. The nozzles are mounted on an arm 29 of the float chamber 30, and an extension 32 of the casing is secured to the arm by a nut 31. In a modification. the conical valve 6 is replaced by an axially movable ported tubular valve. The. Specification as open to inspection under Sect. 91 (3) (a) describes also modifications in which the conical valve is replaced by (1) a flat ported slide and (2) a rotatable cylindrical ported tubular valve. This subject-matter does not appear in the Specification as accepted.
Patent GB-536051-A (GB)
Title: Means for automatically cutting off the supply of inflammable liquids or gas in case of fire
IPC: F16K17/38
Filed: 1940-01-23
Abstract: 536,051. Preventing fires. HILHAM, R. W., and WILSON GAS METERS, Ltd., G. Jan 23, 1940, No. 2389/39. [Class 47 (ii)]  A safety cut-off valve between a gas main and meter or between a bulk supply of inflammable liquid and consumer's premises, comprises a heavy ball c supported by three or more pins d soldered in position by fusible metal or alloy e preferably in bushes f threaded for engagement with the valve body a.
Patent GB-1096919-A (GB)
Title: Derivatives of adamantane-1-carboxylic acid and processes for their production
IPC: A61K31/19
Filed: 1966-01-19
Abstract: The invention comprises (I) as novel compounds 3-aminoadamantane-1-carboxylic acid and its non-toxic salts with inorganic and organic acids and bases and 3-acetamidoadamantane -1-carboxylic acid and its non-toxic salts with inorganic and organic bases, and (II) the preparation of 3-aminoadamantane-1-carboxylic acid and its non-toxic salts with inorganic and organic acids and bases (a) by hydrolysing 3-acetamidoadamantane-1-carboxylic acid, which may be prepared by reacting 3-bromoadamantane -1-carboxylic acid with acetonitrile in the presence of a strong acid, and converting the base obtained into a suitable salt, (b) by reducing 3-azidoadamantane-1-carboxylic acid, which may be prepared by reacting 3-bromoadamantane -1-carboxylic acid with a salt of hydrazoic acid, and converting the base obtained into a suitable salt, or (c) by acetylating 1-bromo-3-aminoadamantane with acetic anhydride in the presence of pyridine, and reacting the 1-bromo-3-acetylaminoadamantane obtained with formic acid in the presence of sulphuric acid, and hydrolysing the resulting 3-acetylamino-1-carboxylic acid, and converting the base obtained into a suitable salt.  Therapeutic compositions having antiviral activity, which may be administered orally, rectally, locally or parenterally, contain as active ingredient 3 - aminoadamantane - 1 - carboxylic acid or at least one non-toxic salt thereof with an inorganic or organic acid or base.
Patent GB-480823-A (GB)
Title: Improvements in and relating to variable speed transmission mechanism
IPC: F16H29/18
Filed: 1936-07-31
Abstract: 480,823. Variable - speed gearing. CAVALLO, F. July .31, 1936, No. 2432/37. Divided out of 480,789. [Class 80 (ii)] A shaft 48 drives a shaft 57 through differential gearing 52, 55, 56 the action of which is modified by a parallel-disc variable gear 1, 2. The disc 1 has an annular groove accommodating ratchets consisting of segments 6 with wedge-shape recesses in which rollers 7 are located. On the segments 6 are pins 8 carrying rollers 9, engaging radial grooves 10 in the disc 2. The spur wheel 53 of the differential is driven from the shaft 48 through wheels 49, 46, and shaft 42, and wheel 46 drives a wheel 45 on a shaft 40, which is rotatably mounted in a lever 41 pivoted on shaft 42, and carries the disc 1. The lever 41 can'be displaced to vary the eccentricity of the disc 1 by a worm 44 and segment 43. The disc 2 is connected to the differential sun-wheel 52, the planet 55 of which is loose on the carrier 53 and gears with a wheel 56 on shaft 57.