baber/WOPTO huggingface dataset:
Patent GB-633382-A (GB)
Title: Improvements in or relating to the manufacture of refractory articles
IPC: C04B33/13
Filed: 1947-06-13
Abstract: Refractory articles are prepared by shaping under pressure and in the cold a plastic mass consisting of a powdered refractory material such as titanium oxide or magnesium titanate and a non-aqueous gel containing an organic solid and an organic liquid, the mass possessing the property of becoming liquid on the application of pressure.  The organic liquid is preferably unctuous and has a vapour tension less than that of water, e.g. petroleum, oils &c.  A binding-agent such as colophony or fish glue may be added to increase the cohesion of the unfired product. According to examples, the gel is constituted by a solution of ceresin in terpineol or magnesium stearate and petroleum.
Patent GB-754278-A (GB)
Title: Spinning lures
IPC: A01K85/12
Filed: 1954-05-27
Abstract: 754,278. Anglers' spinners. COLLINS, J. N. July 9, 1954 [May 27, 1954], No. 15715/54. Class 48. A spinner comprises a fish-shaped body 1 surrounded by a frame 3 having vanes 4, the arrangement being that when fishing the frame rotates but the body does not. The frame is rotatably mounted on a wire 2 extending longitudinally through and keyed to the body. The upper part of the body is made of wood and the lower part is made of lead or of lead and wood.
Patent GB-859545-A (GB)
Title: A panning guide for motion picture and television cameras
IPC: G03B19/18
Filed: 1957-05-17
Abstract: 859,545. Kinematograph cameras. BENDER, W. May 17, 1957 [May 17, 1956], No. 15821/57. Class 97(1) In a kinematograph or television camera, means are provided for superimposing a moving pattern in the field of view seen by the user in order to assist the user when panning the camera. The kinematograph camera shown in Fig. 1 has a reversed Galilean viewfinder system 18, 20 and a window 24. Threaded rods 26 in the window margins are rotated in opposite directions by the camera mechanism through gearing 32. The threads of the screws thus provide a sequence of indicia passing across the field of view. In another arrangement the screws are disposed so as to be imaged in the eyepiece field by inclined strip mirrors between the viewfinder lenses on either side of the light beam between them. The screws may alternatively be located in the plane of the primary real image of a terrestrial telescope system, adjacent the masking frame of an Albada system, or adjacent the front member of an open frame viewfinder, Fig. 13. In this latter case transparent rods 106 image the screws at infinity. In other embodiments the indicia are provided by radial markings on a transparent disc either covering the whole of the viewfinder field or having a portion of its periphery visible in the margin of the field. The indicia may also be provided by an endless toothed flexible band passing over pulleys, different parts of the band being visible in the four margins of the field. Another embodiment uses fixed indicia and a moving partially reflecting mirror intersecting the viewfinder axis.
Patent GB-1462997-A (GB)
Title: Four-stroke spark ignition internal-combustion engine
IPC: F02B75/02
Filed: 1974-04-10
Abstract: 1462997 IC engines - pre-combustion chambers YAMAHA HATSUDOKI KK 10 April 1974 [12 April 1973 30 Nov 1973 14 Dec 1973] 15827/74 Heading F1B The invention relates to a four-stroke I.C. engine of the spark ignition type comprising a piston and cylinder assembly, an intake passage controlled by a mushroom-shaped intake valve, an exhaust passage controlled by a mushroomshaped exhaust valve, the intake passage being curved in the vicinity of the intake port, the cavity in the cylinder head which defines in part the combustion chamber being formed with a pocket or recess in the region of and open to the associated intake port corresponding to the outer side of the curved portion of the intake passage, a spark-plug being located in the recess. The engine shown in Figs. 1, 2, 3 comprises an inlet passage 6 for air/fuel mixture, the inlet port 7 being controlled by a valve 10, an exhaust passage 8 the exhaust port 9 of which is controlled by a valve 11, the combustion space 5 being defined in part by a cavity 3A formed in the cylinder head 3. The intake passage 6 is of curved form and a recess 12 is formed in the wall of the cavity 3A of the cylinder head being located adjacent the intake passage and port 7; the recess is defined at its lower side by a wall 14, and having an inlet side 13A and an outlet side 13B; a sparking plug 15 is located with its points in the recess. The arrangement is such that when a weak fuel/air mixture is supplied through the curved intake passage 6, fuel droplets tend to be flung outwardly towards the outer wall of the passage so that a rich mixture is supplied into the recess for ignition by the sparkplug. In a further embodiment a web (16) extends across the recess between the inlet and outlet openings 13A, 13B. The engine shown in Fig. 6 is of the side-valve type, the recess 12 in the cylinder head 3 being defined by an inner wall 14 and by a web 16 and having an inlet 13A and an outlet 13B. The intake passage 6 is of curved form the fuel droplets being flung towards the outer wall of the passage so that a rich fuel/air mixture passes into the recess 12 for ignition by the spark-plug 15. In Fig. 9 the recess 12 is again defined by a lower wall 14, a rich mixture flowing into the recess from the curved intake passage 6 as before; a further intake passage 18 controlled by an inlet valve 19 opens into the recess 12 adjacent the spark-plug 15, a rich mixture being supplied through the passage 18. In Fig. 11 the recess 12 is defined by a lower wall 14 and a web 16 and has an inlet 13A through which a rich fuel/air mixture enters from the curved inlet passage 6, also an outlet 13B. An additional spark-plug is provided diametrally opposite the plug 15.
Patent GB-744634-A (GB)
Title: Improvements in or relating to catalytic hydrogenation
Inventor: HOLMES WILLIAM RAYMOND
IPC: B01J32/00
Filed: 1953-06-09
Abstract: Alkylated or arylated anthraquinhydrones or anthraquinols are produced by reducing alkylated or arylated anthraquinones in a solvent medium by means of hydrogen in the presence of a catalyst comprising palladium deposited on titanium dioxide.  The titanium dioxide is preferably hydrated or only partially dehydrated by heating to a temperature not greater than 1000 DEG  C., and is preferably in the form of a hard gel which may be obtained either by precipitation from a titanium salt solution, e.g. titanium chloride or titanyl sulphate, with alkali followed by washing and drying or by coagulation of a colloidal solution of dispersed titanium dioxide by means of an alkali, and/or heating followed by washing and drying. The titanium dioxide is impregnated with a suitable solution of palladium, e.g. sodium chlorpalladite (Examples 1, 3 and 4), or palladium chloride (Example 2).  In the latter example the impregnated carrier is treated with sodium hydroxide solution.  The palladium salt may be reduced to palladium before or during the hydrogenation process.  The solvent may be a two component mixture in which one component is cyclohexanyl acetate or propionate or methylcyclohexanyl acetate or propionate and the other component is benzene toluene or xylene.  Specifications 465,070; 508,081, 566,499, 686,574, [all in Group III], 718,305, 718,306, [Group III], and 718,307 are referred to.ALSO:In the production of hydrogen peroxide by the successive hydrogenation and oxidation of alkylated or arylated anthraquinones in solvent medium, the hydrogenation is carried out in the presence of a catalyst comprising palladium deposited on titanium dioxide.  The titanium dioxide is preferably hydrated or only partially dehydrated by heating to a temperature not greater than 1000 DEG C, and is preferably in the form of a hard gel which may be obtained either by precipitation from a titanium salt solution, e.g. titanium chloride or titanyl sulphate, with alkali followed by washing and drying or by coagulation of a colloidal solution of dispersed titanium dioxide by means of an alkali and/or heating followed by washing and drying.  The titanium dioxide is impregnated with a suitable solution of palladium, e.g. sodium chlorpalladite (Exs. 1, 3 and 4) or palladium chloride (Ex. 2).  In the latter Example, the impregnated carrier is treated with sodium hydroxide solution. The palladium salt may be reduced to palladium before or during the hydrogenation process.  The solvent may be a two component mixture in which one component is cyclohexanyl acetate or propionate or methyl cyclohexanyl acetate or propionate and the other component is benzene, toluene or xylene.  The hydrogen peroxide may be extracted from the solvent solution with water. Specifications 465,070, 508,081, 566,499, 686,574, 718,305, 718,306, and 718,307 [Group IV(b)] are referred to.
Patent GB-754154-A (GB)
Title: Improvements in or relating to astable, monostable and frequency divider circuits employing crystal triodes
Inventor: BREWSTER ARTHUR EDWARD
IPC: H03K5/00
Filed: 1953-06-10
Abstract: 754,154. Pulse and sawtooth transistor generating circuits; single stable state and frequency dividing circuits. STANDARD TELEPHONES & CABLES, Ltd. June 4, 1954 [June 10, 1953], No. 15937/53. Class 40 (6). In a relaxation oscillator Fig. 2, the base is earthed over a low resistance inductor 5, the pulse recurrence frequency being determined by the elements 1, 2 in the emitter circuit. Oscillations may be inhibited by a catcher diode 7, Fig. 3, biased negatively with respect, to earth so that the circuit executes one oscillation when triggered by a negative-going pulse applied over diode 8 and to the base. A pulse train may be supplied, Fig. 4, the circuit then operating as a frequency divider. A resistor 6 limits the collector current and pro. vides an output of positive-going pulses at the divided rate, the back resistance of the emitter being increased by diode 10. The base potential has the high frequency pulses with larger amplitude pulses at the divided rate. This waveform may be attenuated over a resistor 9 and fed into an identical stage to give further frequency division, Fig. 5 (not shown). As a result of the continued attenuation the output waveform consists of a series of pulses having ruler-like divisions, Fig. 6 (not shown). In a modification, Fig. 7, positive pulses are fed to the emitter over resistor 11, a resistor 12 allowing the emitter to rise. Resistors 14, 15 from an attenuator to feed pulses of the desired amplitude to the next stage, Fig. 9 (not shown). In the final stage the output pulses may be shortened by a capacitor 13.
Patent GB-1334471-A (GB)
Title: Preparation of urea derivatives
IPC: A61K31/18
Filed: 1972-04-06
Abstract: 1334471 Process for making sulphonylureas CHINOIN GYOGYSZER-ES VEGYESZETI TERMEKEK GYARA RT 6 April 1972 [6 April 1971] 15997/72 Heading C2C The invention comprises reacting or its salt with CX 3 -CONHR<SP>2</SP> to give therapeutic compounds (I) (X is halogen, R<SP>1</SP> is H, halogen, C 1  to C 6  alkyl, alkoxy, NH 2 , acylamino or acylaminoalkyl, where acyl is derived from an aliphatic, aromatic or heterocyclic carboxylic acid optionally substituted by halogen, alkyl and/or alkoxy, and R<SP>2</SP> is C 1  to C 6  alkyl or C 4  to C 7  cycloalkyl.)
Patent GB-584327-A (GB)
Title: Improvements in and relating to liquids stable at low temperatures
IPC: C09K3/00
Filed: 1944-08-22
Abstract: 584,327. Antifreeze liquids. BRITISH THOMSON-HOUSTON CO., Ltd. (General Electric Co.). Aug. 22, 1944, No. 16044. [Class 29] [Also in Groups XXIX and XXXVI] . A non-congealing and non-crystallizing liquid stable at -40‹C. consists of a mixture of halogenated alkylated aromatic hydrocarbons such as ethyl benzene, toluene, and isopropyl benzene with less than 10 per cent. of an unhalogenated hydrocarbon or other compound, namely mineral oil, diphenyl diphenyl oxide, pinene, benzene, toluene, isopropyl-benzene, wood rosin, hexane, cyclohexane, dimethyl napthalene, N-butyl alcohol or isoamyl alcohol. In one example a mixture of trichlorbenzene. tetra- and pentachlorethylbenzene and pentachlordiphenyl is stabilized with a small proportion of mineral oil. Specification 461,681, [Group XXXVI], is referred to.
Patent GB-235915-A (GB)
Title: Moth proofing composition
IPC: A01N59/10
Filed: 1925-06-22
Abstract: 235,915. Larvex Corporation, (Assignees of Minaeff, M. G.). June 21, 1924, [Convention date]. Proofing against vermin; proofing compositions. Solutions of fluorides or silico-fluorides of sodium, potassium, lithium, zinc or aluminium, containing 0.1 per cent or less of an organic acid, such as oxalic, tartaric, formic, citric or acetic acid, are used for proofing woollen fabrics, furs &c. against moths. Sulphates of the above mentioned metals may be added to the solution.
Patent GB-205138-A (GB)
Title: Improvements in the generation of the teeth of gear wheels
IPC: B23F9/08
Filed: 1922-06-10
Abstract: 205,138. Herbert, Sir A., and Shaw, F. W. June 10, 1922. Grant of Patent refused. Gear-cutting.-Bevel and other gears have the teeth generated by a system in which the wheel and cutter each rotate continuously without any reciprocation and without indexing, and in which the teeth of the cutter complete the generation of the teeth to be cut at points on an imaginary generating surface, either flat or curved, which occupies such a position normal to the pitch plane of an imaginary crown wheel that the pitch of the teeth in the generating surface is always uniform. The cutter may be either in the form of a worm whose longitudinal section coincides with a rack of uniform pitch or in the form of a gear which is conjugate to the rack. When a hob or fly-cutter is used, Fig. 1, it is set with its axis of rotation inclined at the helix angle to a generating plane 1, the latter being an imaginary plane perpendicular to the plane of the basic crown wheel and tangential to a base circle 2 situated within the teeth 4 of the crown wheel. When a gear shaped cutter 5 is used, Fig. 3, it is set with its axis parallel or approximately parallel with the pitch plane of the crown wheel and perpendicular to the generating surface 1, which may be flat or curved in any way, and is caused to move along the generating surface with its axis always normal thereto. When cutting a bevel gear, the blank 6, Fig. 7, is rolled on its pitch cone past the rotating cutter 5, which also travels slowly along the generating surface 1.
Patent GB-663968-A (GB)
Title: Improvements in or relating to high frequency electrical apparatus
IPC: H01P5/04
Filed: 1949-06-17
Abstract: 663,968. Wave-guides; electric resonators. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 17, 1949 [June 26, 1948], No. 16183/49. Class 40 (viii). [Also in Group XI] High-frequency apparatus comprises a hollow wave-guide, a resonant cavity adapted to receive material, for example, a dielectric material to be heated, and coupling-means tunable to half-wave resonance and including two coupling inductors disposed between the wave-guide and the cavity for coupling the wave-guide to the cavity. The invention is described as applied to a dielectric heating apparatus comprising a wave-guide 1 supplied with high-frequency energy, e.g. 430 Mc., from a magnetron generator (not shown) and coupled by a tunable coupler 39 to an adjacent resonant cavity 3 which is tunable by an adjustable piston 5. An end 7 of the resonant cavity is removable for the insertion of dielectric articles to be heated. Alternatively a slot 11 is provided to allow the passage of a dielectric web 9 to be heated. The coupler 39 is arranged one quarter-wavelength from the closed end 2 of wave-guide 1 so as to pick up the maximum voltage. This is coupled near to one corner of the resonator 3 at a low voltage point so that the maximum voltage in the resonator is much greater than that in the guide. The guide and the resonator have superposed V-slots 41, Fig. 2, in their contiguous faces, and complementary semi-circular openings in their top sides over which the coupler 39 is mounted. The coupler comprises similar inductor loops 19, 21 fixed to the guide and resonator walls at their lower ends 43, and having their upper ends 25 connected to parallel conductors 27 provided with a shorting piece 31 adjustable by a knob 35. The upper ends of lines 27 are supported from a shielding can 39. When the coupler is tuned by knob 35 to half-wave resonance, a voltage antinode occurs at the middle of bridge 31 where there is little risk of arcing. In order that the inductor loops have a large area without having an inconveniently large inductance, the loops are made of strip which is about sixteen times as wide as it is thick.
Patent GB-450615-A (GB)
Title: Improvements in magnetic alloys with high initial permeability
IPC: C22C19/00
Filed: 1935-06-04
Abstract: Magnetic alloys of high initial permeability consist of 10-60 per cent of iron, 40-90 per cent of nickel, 0,1-5 per cent of tin, and 1-5 per cent of chromium, with or without up to 2 per cent of titanium, up to 2 per cent of silicon, and up to 1,5 per cent of manganese.
Patent GB-1113410-A (GB)
Title: Elastomer-containing compositions
IPC: C08L21/02
Filed: 1967-04-10
Abstract: An aqueous dispersion comprises a blend of (A) a rubber latex and (B) a latex of a copolymer of from 50 to 90 weight per cent of a C4-C8 conjugated alkadiene and 50 to 10 weight per cent of an olefinically-unsaturated nitrile comonomer having a methyl or ethyl substituent, said latex (A) having at least 60% by weight total solids, and said blend having at least 585 by weight total latex solids.  Rubber latex (A) may be of natural rubber, polybutadiene, or butadiene-styrene copolymer and latex (B) is preferably a butadiene-methacrylonitrile copolymer.  The compositions are very suitable for foaming.
Patent GB-170330-A (GB)
Title: Improvements in interlocking devices for screw down valves
IPC: F16K35/14
Filed: 1920-06-17
Abstract: 170,330. Cammell, Laird, & Co., Ltd., Carter, Sir G. J., and Watson, J. June 17, 1920. Interlocking.-A device for interlocking two or more valves, particularly applicable for use with hydraulic oil storage and delivery systems, comprises toothed wheels secured to the valve spindles adapted to be engaged by a slidable or pivoted locking-member provided with shrouds and mounted to move in a plane normal to the ends of the spindles. In the form shown, the slidable locking-members D<1>, D<2> are guided by strips c<1> and have teeth d<1>, d<2> provided with shrouds d<3> adanted to be moved into engagement with toothed wheels a<3>, b<3> on the valve spindles a<1>, b<1> by a cam F. The cam is mounted on a spindle E provided with a square actuating-head e<2>, and is rotatably mounted on a platform c supported from the bridges a<4>, b<4> of the valves. Holes are provided in the cam and platform to receive a removable locking-pin whereby one or both valves may be locked in the closed position. Two pairs of valves may be interlocked by fitting two teeth in each locking-member. In a modification, the sliding locking pieces are replaced by a pivoted member and the shrouds may be formed by a recessed disc having a pin and slot connection with the locking-member. In this form, the holes to receive the removable locking-pin are in the shroud disc. When interlocking four valves, two pivoted locking-members and two shroud discs connected together by a link may be employed. The toothed wheels may be replaced by collars of the same external diameter, in which case the valve spindles are locked positively against rotation. According to the Provisional Specification, the shrouds may be formed in the toothed wheels.
Patent GB-829933-A (GB)
Title: Improvements relating to hydraulic supporting means for vehicles
Inventor: WHITLOCK ALAN CARLETON
IPC: B60S9/10
Filed: 1957-05-23
Abstract: 829,933. Vehicle stands. WHITLOCK BROS. Ltd. May 21, 1958 [May 23, 1957], No. 16422/57. Class 79(3) An hydraulically lowered supporting leg 13, Fig. 2, for a vehicle such as an excavator is adjustable in length for varying the distance of the foot 16 from the pivotal connection 14 on the vehicle body. The foot 16 is attached to a telescopically extending section 25 of the leg 13 and is locked in position by a pin 27. The hydraulic cylinder 21 is connected at 22 to the inner end of the section 25 so that the moment arm simultaneously changes with the extension of the foot 16.
Patent GB-1242364-A (GB)
Title: Optical glass
IPC: C03C3/062
Filed: 1970-04-07
Abstract: 1,242,364. Optical glass. CARL-ZEISSSTIFTUNG, [trading as JENAER GLASWERKSCHOTT & GEN.]. 7 April, 1970 [11 April, 1969], No. 16442/70. Heading C1M. An optical glass consists of (in weight per cent): where (f) to (t) do not exceed 25% of the glass. Component (u) may be chosen from CaF 2 , BeF 2  and MgF 2 , or may be an alkali metal-alkaline earth metal silicofluoride, e.g. Na 2 Ca(SiF 6 ) 2 . The glass preferably has <SP>n</SP>d>1À54, and vd<66.
Patent GB-957683-A (GB)
Title: Method for preparation of alpha-omega-dinitroalkanes
Inventor: KLAGER KARL
IPC: C07C205/02
Filed: 1961-05-05
Abstract: a , o -Dinitroalkanes of the general formula: O2N-CH2-A-CH2-NO2 wherein A is an alkylene radical containing at least two carbon atoms, are prepared by reducing compounds of the formula: O2N-CX2-A-CX2-NO2 wherein X is chlorine or bromine, in acid media with a mild reducing agent to reduce the halogen atoms in preference to the nitro groups. Specified reducing agents are sodium borohydride, lithium aluminium hydride and aluminium isopropoxide. The radical A may contain alkyl side chains, aryl groups or substituents such as hydroxyl groups.  The reaction is usually carried out in the presence of an inert solvent such as methanol or ethanol.  The tetrahalo-dinitroalkanes may be prepared by halogenation of a ,a 1-dinitro cyclic ketones in the presence of an alkali hydroxide. In examples: (1) an aqueous solution of sodium borohydride is added to a mixture of 1,1,4,4-tetrabromo-1,4-dinitrobutane and methanol, the pH being maintained at 4-5 by the addition of 30% sulphuric acid, the temperature being maintained below 35 DEG C.; working up gives 1,4-dinitrobutane; (2) 1,5-dinitropentane is similarly prepared from 1,1,5,5-tetrachloro-1,5-dinitropentane and sodium borohydride.
Patent GB-296968-A (GB)
Title: Apparatus for cutting cardboard and similar substances for decorations of shop-windows and sceneries
IPC: B26F1/38
Filed: 1928-06-07
Abstract: 296,968. Lewinsohn, H. June 7, 1928. Cutting - appliances.- In a machine for cutting figures from sheets of cardboard, an electromotor d drives eccentrics i coupled by straps h to a transverse bar l. The bar l drives a spring- balanced rod n with a cutting-tool o. The foot of the machine has an adjustable centre for use in cutting circles, and an inclined end to facilitate raising the blade from the work.
Patent GB-793463-A (GB)
Title: Improvements in angularly adjustable work tables
Inventor: YATES HERBERT
IPC: B23K37/04
Filed: 1955-06-09
Abstract: 793,463. Machine-details. YATES PLANT, Ltd. June 5, 1956 [June 9, 1955], No. 16582/55. Class 83 (3). An angularly-adjustable work-table a, for use in welding &c., is carried by a spindle b rotatably adjustable on an arm c which is angularly-adjustable about a spindle d inclined to arm c. In order to allow the centre of gravity of the table a, arm c and the work, to be made approximately coincident with the intersection of the axes of the arm c and spindle d, the arm is laterally displaceable on the spindle by flanges c<SP>1</SP>, d<SP>1</SP> integral with the arm and spindle. Clamping is effected by screws g passing through slots d2 in one flange. The flanges may be perpendicular to the arm c or the spindle d. The angular adjustments are locked by brake-shoes h on fixed brackets h<SP>1</SP>, pressed by hand-operated screws i on to discs j attached to the spindles b, d which also carry capstans k for rotation thereof. Alternatively, the spindles may be rotated by power, and the flanges cl, d<SP>1</SP> may be adjusted by a lead-screw.