baber/WOPTO huggingface dataset:
Patent GB-1125693-A (GB)
Title: Improved bacon cooker
IPC: A47J37/10
Filed: 1967-03-20
Abstract: 1,125,693. Bacon cooker. J. C. VARKALA. 20 March, 1967 [16 Jan., 1967] No. 12875/67, Heading A4D. A device for cooking bacon, and other meats, while maintaining the meats in a flat condition comprises a pair of plates 10, 12; between which the meat is placed, each plate having corrugations 16 and the two plates being hinged by\ rings 14 which arrangement allows the receipt of varying thicknessesofl meat between the plates, the lower plate having channels 16 which receive grease from the cooking meat, a raised lip 18 to prevent spillage of grease and a trough 20 at right angles to the channels into which the fat drains, the whole device being tilted towards the said trough by means of a support system comprising a ring 28 and upright spacing members 30, the upper plate having an opening 24 above the trough to. permit visible inspection of the fat level in the trough which also has a lip 22 to permit pouring of fat. Opening 24 also permits drainage of fat from the top of plate if food is being cooked thereon. .
Patent GB-1477775-A (GB)
Title: Alkane sulphonate spray product
IPC: C11D1/14
Filed: 1975-03-27
Abstract: 1477775 Alkali metal alkane sulphonate powders HOECHST AG 27 March 1975 [29 March 1974] 13045/75 Heading C5D A free-flowing spray product in powder form comprises (A) a carrier, which is an inorganic or organic detergent builder, (B) at least one alkali metal alkane sulphonate surfactant, and (C) finely dispersed silica, the content of alkane sulphonate being at least 15% by wt. referred to the combined wt. of (A) and (B) and the content of SiO 2  being from 0À2 to 6% by wt. based on (B). (A) may be sodium carbonate, sodium metasilicate, sodium tripolyphosphate, sodium sulphate, sodium citrate, potassium carbonate, potassium polyphosphate, potassium sulphate, ammonium sulphate or ammonium polyphosphate. (B) preferably contains C 12  to C 18  carbon atoms and is present in quantities of at least 20% (based on (A) plus (B)). The powder is produced by spray-drying at a temperature of 100‹ C. to 350‹ C. an aqueous slurry of (A), (B) and (C) above. Preferably, the silica is in the form of a fine dispersion having a bulk wt. of 60 to 400 g. per litre. The powder may be incorporated into detergent compositions containing conventional additives such as soaps, bleach and optical brighteners.
Patent GB-1385649-A (GB)
Title: Preparation of benzodiazepines
IPC: C07D243/28
Filed: 1973-03-19
Abstract: 1385649 Benzodiazepines LABORATOIRES PHARMEDICAL SA 19 March 1973 [17 March 1972] 13152/73 Heading C2C Compounds of the general formula (R<SP>1</SP>=H, C 1-3  alkyl, alkaryl, aryl; R<SP>2,3</SP>=H, halogen, C 1-3  alkyl, alkaryl, alkoxy, NO 2 , sulphonic, sulphamido; Y = CO, CH 2 ) are prepared by reacting a compound of the formula (X = halogen) with a compound of the formula (Z = blocking group). Reference has been directed by the Comptroller to Specification 1,017,276.
Patent GB-131419-A (GB)
Title: Improvements in and relating to Propellers for Aircraft.
IPC: B64C11/34
Filed: 1918-08-14
Abstract: 131,419. Siddeley-Deasy Motor Car Co., and Green, F. M. Aug. 14, 1918. Screw propellers. - Relates to propellers for aircraft of the kind in which the blades are so mounted on and coupled to the propeller shaft that their pitch is automatically varied by the forces acting on them. The blades a are mounted in sockets a<1> which are attached to the hub b by means of universal joints c, or alternatively by means of radial sockets and transverse pins, so that the blades are free both to rotate about their radial axes and to rock in a fore and aft direction. The sockets a<1> carry pivoted links h which are also attached to arms f carried by a collar g. The joints at both ends of the links are universal. By this construction, any rocking of the blades in a fore and aft direction causes a rotation of the blades so as to vary the pitch The collar g may be adjustable longitudinally along the hub b by means of a hand-lever so that the pitch of the blades may be varied directly by hand.
Patent GB-1255590-A (GB)
Title: Method of producing polyphenylene oxides-1,4
Inventor: PRAVEDNIKOV ANDREI NIKODIMOVIC
IPC: C08G65/44
Filed: 1970-03-19
Abstract: 1,255,590. Polyphenylene oxides. A. N. PRAVEDNIKOV, V. V. KOPYLOV, and V. M. CHEREDNICHENKO. 18 March, 1970, No. 13276/70. Heading C3R. Polyphenylene oxides are obtained by oxidizing phenols with gaseous oxygen in the presence of a complex formed by a copper salt and ammonia or an amine, the phenol being dissolved in a mono- or poly-nitrile derived from an aliphatic mono- or polycarboxylic acid. In examples o-cresol, phenol and 2,6-xylenol are oxidized in the presence of complexes formed from pyridine and cuprous chloride, picoline and cuprous chloride, pyridine and cuprous bromide and tributylamine and cuprous chloride, the reactions being carried out in acetonitrile, butyric acid nitrile and adipic acid dinitrile ; in some instances platinium supported on charcoal is also present.
Patent GB-456144-A (GB)
Title: Improvements in and relating to motion transmitting mechanisms particularly for use in the actuation of control surfaces of aeroplanes
IPC: B64C9/00
Filed: 1935-05-03
Abstract: 456,144. Aircraft controls. COLLAR, A. R., National Physical Laboratory, Tedding- ton, Middlesex. May 3, 1935, No. 13283. [Class 4] [See also Group XXIV] Motion-transmitting mechanism particularly mechanism adapted for use in the control or actuation of ailerons, landing flaps and other control surfaces of aircraft comprises an epicyclic or hypocyclic gear arranged so that the planet pinion thereof is caused to rotate about a stationary gear-wheel and a link connected to some fixed point on the pinion so that when the point is at a cusp in its path or when it moves at right angles to the direction of the link, the other end of the link provides a dead centre at some point intermediate the ends of the stroke of the operated mechanism. Fig. 1 shows an epicyclic gear comprising a wheel X pivoted at O and adapted to be rotated by cables 1 connected to the pilot's control column, a fixed sun-wheel Y, and a planet wheel Z, the axis of which is fixed in wheel X. A link D is connected at one end to planet wheel Z at a point C on the pitch circle thereof and at the other end to a lever operating a control surface. The path of point C, Fig. 2, is an epicycloid having a cusp at B which point is a dead centre in the motion of link CD and therefore of the control surface. When the radius OB is normal to the link CD, the motion of point C is symmetrical on either side of point B, when this is not the case the motion is assymetrical and the device can be used to give a differential control, e.g. for aileron operation in which a pair of control units would be provided and oppositely rotated. In such case the system has two dead centres unless the point of attachment of link CD is at an appropriate point E not on the pitch circle, Fig. 3. The Specification includes graphs in which control link movement in inches is plotted against control wheel rotation in degrees for different values of r and of alpha (the angle between the radius OB and the normal to link CD). Means such as worm and worm wheel may be provided for rotating the sunwheel and locking it in a given position thereby altering the dead centre position for trimming purposes. A spring or clamping device may be employed to hold the gear in its central position. When the device is used for rudder control, the rudder may be given aerodynamic balance such that in positions of the gear in which the pilot is at the greatest mechanical disadvantage, the rudder is slightly underbalanced. A modification in which a hypocyclic gear is employed is described.
Patent GB-278280-A (GB)
Title: Improvements in hand tools or needles for use in rug making and the like
IPC: D05C1/00
Filed: 1927-05-18
Abstract: 278,280. Domoney, M. May 18, 1927. Hand sewing-tools.-A tool for inserting tufts into a backing in making rugs comprises a pointed needle A having the cross-section shown in Fig. 2, but flattened at its basal end which is inserted in a handle. Holes B, C are provided for the insertion of the tufting material which is passed through the backing, and formed into a loop, the flattened portion of the needle acting as a stop.
Patent GB-479323-A (GB)
Title: Improvements in and relating to a universal joint
IPC: F16D3/202
Filed: 1937-05-11
Abstract: 479,323. Universal joints. LA ROSE, E. E. May 11, 1937, No. 13358. [Class 80 (ii)] A number (e.g. four) of trunnions 27, projecting radially from a spherical member 23 on one shaft 12 carry, on adjustable ball bearings 30, large conical rollers 28, or sliding blocks, which engage internally flat projections 48 of sleeves 44, spring supported for limited rotary movement in recesses in a socket-member 10, carried by the other shaft 16. The projections 48, Fig. 6, are externally coned to engage complementary recesses formed by ribs 40 in the socket-member 10. The sleeves 44 are supported for limited rotary movement by spring-rings 52, the radial ends of which engage slots 56, 58 in the sleeves 44 and socket-ribs 40 respectively. Additional internal spring- rings 60 hold the rings 52 in position. The limited rotary movement of the sleeves 44 allows the rollers 28 to assume offset positions as the joint rotates when angularly deflected. The spherical shaft-member 23 is centred by cylindrical inner faces on the ribs 40 and curved inner faces 66 on the sleeve-projections 48. The ball-bearings 30 are screw-adjustable on the trunnions 27 and are locked by keys 34.
Patent GB-1032719-A (GB)
Title: Billiard table
IPC: A63D15/00
Filed: 1965-03-30
Abstract: 1, 032, 719. Billiard tables. BRUNSWICK CORPORATION. March 30, 1965 [April 1, 1964], No. 13410/65. Heading A6H. A billiard table comprises a bed having a cellular core 82 (preferably of heavy paper) bounded by upper and lower skins 80, 86 (preferably comprising a mixture of cement and asbestos). The bed is covered with material such as felt, and is formed with recesses around its edge constituting pockets, the recesses communicating with a ballreturn channel 118 situated beneath the periphery of the table, and leading to an outlet at one end of the table, adjacent ball-storage racks.
Patent GB-306763-A (GB)
Title: Improvements in or relating to sound boards for pianos and other key instruments
IPC: G10C3/08
Filed: 1928-05-07
Abstract: 306,763. Zimmermann, K., (trading as Schweriner Pianofabrik P. Perzina & K. Zimmermann). March 30, 1928, [Convention date]. Pianofortes, bridges, soundboards, framing, and hitch-pins for.- The bass string bridge a carrying all the guide pins c of the bass strings is arranged near the wrest-plank bridge i and is provided with a base a<3> extending under the hammer-heads k. This base a<3> is secured by ribs a<2> to the ordinary soundboard d and acts as a second soundboard. To increase the length of the bass strings, the framing is extended at e and the hitch pins e<1> are secured on the outside. The bass strings vibrate freely from the bridge a to the pins e<1>.
Patent GB-421441-A (GB)
Title: Improvements in and relating to electric transformers and the like
IPC: H01F29/10
Filed: 1934-05-04
Abstract: 421,441. Transformers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. May 4, 1934, No. 13560. Convention date, May 4, 1933. [Class 38 (ii)] The window of a transformer core 1, Fig. 1, is divided into two parts by a variable leakage bridge 4 which comprises two comblike parts and separates the high tension windings 3 from the low tension windings 2. In Fig. 2, which shows the leakage bridge in section, one part of the bridge 5 remains in contact with the main core while the other part 6 which carries a clamping bolt 8 can be moved when the nuts 9 are slackened to vary the air gap 7 and alter the leakage flux through the bridge. Guiding means may be provided to ensure rectilinear movement of the part 6.
Patent GB-224497-A (GB)
Title: Improvements in the dehydration, distillation and cracking of hydrocarbons
IPC: C10G45/04
Filed: 1924-06-04
Abstract: 224,497. Soc. Anon. des Petroles, Houilles, et Derives, (Assignees of Bascou, E. B. G.). Nov. 10, 1923, [Convention date]. Hydrocarbons, cracking and distilling. - In distilling or cracking tars, petroleum oils, &c. the liquid is evaporated while falling as a sheet or curtain in front of electric or other heaters. The liquid, supplied through a heat-exchanger 29, is forced by a pump 16 into the base of a tower 3. It is raised by a pump through a central pipe 9 and pipe 32, and is returned to the tower through an annular channel 9 from which it flows over a core 14 and falls as a thin curtain in front of heaters 4 arranged in parabolic channels in the sides of the tower. The heaters may be electric resistances arranged in tubes of porcelain, pipeclay, quartz, &c. or metal tubes traversed by hot gases, a molten metal, such as lead, or a molten salt such as sodium chloride. The unvaporized liquid falls through a sieve 6, which separates coke, into the base from which it is recirculated. Vapours pass through perforated trays 7 formed of catalytic metals such as iron, copper, nickel, cobalt, &c. which may contain purifying agents such as bauxite, quicklime, oxide of iron, calcium chloride, &c. distributed in porous material such as pumice, asbestos, coke, &c. The liquid is drawn into the pipe 9 through a casing 11 containing vanes, the movement of which causes rotation of agitators 13. The lower part of the tower contains a float 19 adapted to make electric contacts and to give a signal when the float reaches the upper or lower limit of its travel. A series of towers may be mounted on one reservoir. Water, steam, or gas may be passed into the tower from a pipe 17. Differential manometers are arranged to show the resistance to flow through the sieves 6, 7 and to indicate when the apparatus needs cleaning.
Patent GB-362319-A (GB)
Title: Improvements in or relating to low frequency amplifiers
IPC: H03F1/54
Filed: 1931-05-08
Abstract: 362,319. Valve amplifying circuits. ALLGEMEINE ELEKTRICIT€TS - GES., 2, Friedrich Karl-Ufer, Berlin. May 8, 1931, No. 13712. Convention date, May 8, 1930. [Class 40 (v).] The final stage of a low-frequency amplifier, wherein normally a triode is employed, is made suitable for use with a screen-grid output valve, such as a pentode, by means of an adaptor 9 whereby the screen-grid 5 derives its voltage from the anode voltage supply 7 through a resistance 30 shunted by a condenser 31. The loud-speaker 11 is shunted by a condenser 32 to counteract emphasis of high notes due to the pentode. The unit 9 has a threeconductor plug connection to the set, a two-pin plug connecting to the sockets 12, 13, previously employed for the loud-speaker, and a single connecter 14 to the screen grid.
Patent GB-893217-A (GB)
Title: New hetero-bicyclic compounds and process for their manufacture
IPC: A61K31/00
Filed: 1960-04-19
Abstract: The invention comprises compounds of the formula <FORM:0893217/IV (b)/1> (wherein R1 is hydrogen or an aliphatic or cycloaliphatic hydrocarbon radical of at most 7 carbon atoms which may be substituted by a free or alkylated hydroxyl or amino group, R3 is a hydroxyl or amino group, R4 is hydrogen or a hydrocarbon radical and R6 is a mercapto group which may be etherified by a hydrocarbon radical, which radical may be substituted by a tertiary-amino or alkoxy group) and salts thereof; and their preparation by reacting a 2-R6-4-halogen-5-X-6-R4-pyrimidine with an N-R1-hydrazine or an N-R1-N1-acyl- or -alkylidene-hydrazine, and simultaneously, or if necessary after hydrolysis of the acyl or alkylidene group, heating the reaction mixture to close the pyrazole ring, X being a free, esterified, halogenated or amidated carboxyl group or a nitrile group and, if desired, etherifying a resulting mercapto compound.  Examples are given and an extensive list of salt-forming organic and inorganic acids is provided.  Metal salts are also referred to.  2 - Alkylmercapto - 4 - chloro - 5 - cyano - pyrimidines are prepared by reacting s-alkyl-isothioureas with a -ethoxy-methylene-a -cyano-acetic acid ethyl ester to yield 2-alkylmercapto-4-hydroxy-5-cyano-pyrimidines and chlorinating these. Specifications 884,151 and 886,184 are referred to.ALSO:Pharmaceutical preparations comprise a compound of the formula <FORM:0893217/VI/1> (wherein R1 is hydrogen or an aliphatic or cycloaliphatic hydrocarbon radical of at most 7 carbon atoms which may be substituted by a free or alkylated hydroxyl or amino group, R3 is a hydroxyl or amino group, R4 is hydrogen or a hydrocarbon radical and R6 is a mercapto group which may be etherified by a hydrocarbon radical, which radical may be substituted by a tertiary-amino or alkoxy group) or an acid-addition or metal salt thereof, and carriers therefor.  They may take the form of tablets, dragees, solutions, suspensions or emulsions, and may contain preserving, stabilizing, wetting or emulsifying agents, and other therapeutically valuable substances. An extensive list of salt-forming organic and inorganic acids is provided.  Specifications 884,151 and 886,184 are referred to.
Patent GB-456585-A (GB)
Title: Improvements in or relating to microphones and circuit arrangements incorporating the same
IPC: H04R19/04
Filed: 1935-05-11
Abstract: 456,585. Microphones. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and RUST, N. M., 109, London Road, Chelmsford. May 11, 1935, No. 13915. [Class 40 (iv)] [See also Group XL] A velocity-microphone acting as a variable inductance to modulate a high - frequency carrier wave is constituted by a ribbon-microphone minus the usual magnet system. A pressure-microphone acting in the same way may have an armature constituted by a diaphragm supported by a thin collodion film or by a flattened helix of foil wound on such a film. The microphone 4 may be mounted at the end of a length of concentric cable, 1, 2 by means of a U-shaped member 5 and for acoustic reasons the space between the conductors 1, 2 may be filled with cotton wool or the cable may have an internally rounded end as shown in Fig. 2.
Patent GB-278049-A (GB)
Title: Improved means for converting rotary into reciprocating motion or vice versa
IPC: F01B27/08
Filed: 1926-06-02
Abstract: 278,049. Baxter, C. June 2, 1926. Driving-gear.-In order to avoid dead centres in crank - driving gear for engines &c., the small end of the connecting-rod c is formed with lateral extensions, one, f, of which is connected to the piston &c. by means allowing relative lateral movement whilst the other extension h is connected to the piston &c. by means allowing relative movement in the direction of the stroke. In Fig. 1, the extension f is slotted to have a pivotal and lateral sliding movement about a pin g whilst the extension h is connected by a radius link k to the usual gudgeon pin l at or near the centre of the piston. In the form shown in Fig. 2, the ends of the lateral extensions are connected by links o, p to an intermediate slide block m.
Patent GB-887230-A (GB)
Title: Condenser for increasing the resolving power of microscopes operating with transmitted light
IPC: G02B21/12
Filed: 1958-05-01
Abstract: 887,230. Microscope condensers. BARABAS, J., ZSELYONKA, L., KISS, F., and LIBIK, A May 1, 1958 [Dec. 13, 1957], No. 13972/58. Class 97(1). A microscope condenser is arranged to provide dark ground illumination simultaneously with bright ground illumination. As shown in Fig. 1, a front lens 10 of the microscope condenser has a spherical refracting zone 16 adjoining its exit face 15, this zone being widened at areas 17, Fig. 3, whereby light rays passing through the areas 17 provide for bright ground illumination, whereas light rays passing through the remaining parts of the spherical zone 16 provide for dark ground illumination. The areas 17 may be diametrically opposite each other, and may be disposed in pairs of the same or different widths or lengths.
Patent GB-667859-A (GB)
Title: Improvements in or relating to the balancing of rotary bodies
IPC: G01M1/22
Filed: 1950-06-06
Abstract: 667,859. Electric indicating systems. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. June 6, 1.960. [Aug. 10, 1949] No. 14071/50. Class 40 (i). Apparatus for determing the unbalance of a rotor comprises a bridge rectifier network into which is fed a generator voltage and a pick-up voltage from the rotor bearings, a D.C. meter being connected across the midpoints of the two parallel paths of the bridge so that the meter reading is indicative of the rotor unbalance. The rotor 1 (Fig. 1) drives a generator 7 to furnish a synchronised, phaseadjustable, square-wave A.C., having two pairs of output terminals 11, 12, 90 degrees apart, obtained from a two-section commutator 31 (Fig. 4) on the rotor shaft 6, comprising two segments 32, 33 separated by insulating segments 34, 35, and fed with a D.C. voltage. The commutator brushes 36-39 are spaced at 90 degrees intervals and are rigidly interconnected by a brush ring 40 which can be angularly displaced to vary the phase of the generator output. A vibration pick-up 8, 9 is located at each rotor hearing 3, 4. The bridge network 15 is such that 'with a preferred generator voltage of more than twice the pickup voltage, the current through meter 29 is maximum when the voltages are in phase (or 180 degrees out of phase) and zero when the voltages are 90 degrees out of phase, and the magnitude of this current is directly proportional to the component of the pick-up voltage in phase with the generator voltage. The effect of harmonics in the pick-up voltage may be reduced by suitable choice of the angle of dead interval e produced by the insulating segments 34, 35 of the commutator 31.