baber/WOPTO huggingface dataset:
Patent GB-604285-A (GB)
Title: Improvements in or relating to hydraulic drive mechanism
IPC: F16H39/08
Filed: 1945-02-06
Abstract: 604,285. Hydraulic transmission of power. WAHLMARK, G. A. Feb. 6, 1945, No. 2985. Convention date, Jan. 29, 1944. [Classes 69 (ii) and 135] [Also in Group XXVI] A hydraulic transmission includes a member 30 adjustable to maintain constant speed'of a driven shaft 22 by a pair of opposed and unequal pistons 203, 204, the smaller of which is subjected to constant pressure and the larger supplied with pressure fluid under control of valve means 28 responsive to the speed of the said driven shaft. A cylinder block comprising pump and motor portions 32, 33 is rotated from the driving shaft 21 through a spring 150 and spur gearing 140, 141. The pump and motor are separated by a plate 34 to form valve chambers 37, 41 housing freely rotatable wheel-type valves 45, 46 mounted on eccentrics provided respectively on the fixed spindle 62 and driven spindle 85. Pump and motor pistons 40, 44 respectively contact adjustable and fixed wobblers 71, 81 ; the former being controlled by a servomotor 200 having said unequal pistons 204, 203. A pump 180, geared at 157 to the drive shaft discharges into a chamber 64 common to the valves 45, 46 to maintain a constant pressure supply to the transmission, controlled by a relief valve 246. Overflow from chamber 64 is directed to the small piston 203, to provide a constant pressure thereon, and also through a valve 215 to the large piston 204. Valve 215 is actuated by a piston 236 supplied with pressure liquid by a centrifugal pump 108 connected to the driven spindle 85. Hence variation in speed of said spindle varies the pressure acting on piston 236, thereby either supplying pressure liquid to said large piston 204, or connecting it to reservoir, thus adjusting the pump wobbler to maintain constant speed of the driven shaft. Pressure in the valve chamber acting on an unbalanced portion 63 of the pump tends to press the cylinder block towards the left. The main reservoir 185 is kept under a slight pressure by a spring-loaded valve 255 to which returning liquid is supplied by a centrifugal pump 190 which separates liquid from foam and is coupled to the output shaft at 175 (see Group XXVI). Excess liquid passes through nozzles 289 for lubrication purposes. Air escapes from the reservoir through pipe 292 and orifice 294.
Patent GB-775602-A (GB)
Title: Gas cooled atomic reactor equipment
IPC: G21C3/04
Filed: 1955-02-02
Abstract: 775,602. Nuclear reactors. ALLMANNA SVENSKA ELEKTRISKA AKTIEBOLAGET. Feb. 2, 1955 [Nov. 29, 1954; Nov. 29, 1954], No. 3048/55. Class 39(4). In a reactor, the fuel rods are held in vertical tubes and are cooled by gases, under pressure, passing up the tubes. Flexible expansion joints are fitted to the top and bottom covers of the containers to permit thermol expansion of the parts. The cooling circuits of the inner and outer sections of the reactor are separate. The materials used are, fuel, uranium or thorium; moderator, heavy water ; tubes, zirconium or beryllium ; cooling gas, helium or carbon dioxide ; reutron reflector, graphite ; main container, aluminium. As shown, the container 1, surrounded by reflector 5 is mounted on base 7 and holds the moderator 2 and the fuel rods 9. Each rod is supported in an inner tube 11 and outer tube 12. Cooling gas enters at 10, passes vertically through the reactor and out through the sub-divided chamber 15 to the separate pumping circuits 17. Expansion of the tubes 11 is permitted by the expansion joint 31 and expansion of the cooling gas chambers 14, 15 takes place as the gas tight joints 24.
Patent GB-1176625-A (GB)
Title: A Device for Coding and Decoding Data.
IPC: H03M1/48
Filed: 1968-01-19
Abstract: 1,176,625. Analogue to digital converters. ELECTRONIQUE MARCEL DASSAULT. 19 Jan., 1968 [20 Jan., 1967], No. 3121/68. Head. ing G4H. A device for decoding angular data comprises a digital register containing values of angles in binary form and having two outputs representing complementary angles, each of which controls a linear resistor network connected in a circuit with a negative feedback loop, the outputs of the two circuits being applied to a comparator capable of controlling the contents of the digital register. Voltages U1 and U2 to be decoded are applied respectively to identical circuits 10, 11 each comprising an amplifier 14, 23 and a linear resistor network 15, 24. The network 15 also receives a digital control value at 18 and delivers at its output 16 the product of the control value and the input at 17. The output passes via matching amplifier 19 and loop 20 to the subtractive input of amplifier 14. The signal on line 18 is from the digital register 27, complementary angles expressed in fractions of # (#/4-#/256). If the angle supplied on lead 18 is a, the angle on lead 28 of network 24 is the complementary angle (#/2-a). The outputs from the two circuits 10, 11 are compared at 29, the output 40 controlling a circuit 32 receiving clock pulses from clock 33. The ratio of input to output signal for circuit 10 is designated Y1 and that for circuit 11, Y2 (Fig. 3, not shown). For positive values of angle a the value of Y3, which is the ratio Y1/Y2, can be made to approximate to tan a by suitable selection of the gain of amplifiers 14, 23. If the input voltages U1, U2 are made to be proportional to the cosine and sine of a given angle, the output from the comparator 29 will control the register 27 until the angle a contained therein equals the given angle. At this point the outputs from circuits 10 and 11 are equal and no further change takes place to the register 27, the output being at 34. If comparator 29 and circuit 32 are disabled the circuit may be used to convert from a digital angle value to analogue representations of trigonometrical functions. For this purpose equal voltages are applied to the circuits 10, 11 and, the gains of amplifiers 14, 23 being adjusted as above, the outputs are in the ratio of the angle a entered digitally in the register 27. In another mode of operation one of the circuits 10, 11 is disconnected and the feedback loop of the other is disconnected. The circuit then operates as an analogue-to. digital converter.
Patent GB-1532258-A (GB)
Title: Apparatus for playing board games
IPC: A63F3/02
Filed: 1977-01-28
Abstract: 1532258 Board game D P THURSTON 28 Jan 1977 [28 Jan 1976] 03192/76 Heading A6H  A hexagonal board for a board game is marked with hexagons, there being five along each side. Two sets of eight pieces are used.
Patent GB-607386-A (GB)
Title: Improvements in cartons, boxes or the like
IPC: B65D5/60
Filed: 1946-02-01
Abstract: 607,386. Boxes. KAY, J. A., and ROSE BROS. (GAINSBOROUGH), Ltd. Feb. 1, 1946, No. 3241. [Class 18] A carton comprises an outer casing 11 of cardboard or like material and an inner liner of tubular construction. The liner is secured at one or both ends to inner closure flaps 23 of the outer casing within an area 33 of triangular shape with the base of the triangular area on the line of folding of the inner closure flaps. By folding outwardly the inner closure flaps, triangular tabs 33 are formed from the triangular areas of the liner secured to the flaps and the mouth of the liner is formed into a lateral seam 32. The lateral seam may be sealed by adhesive or coated with thermo-plastic material and is folded down into the plane of the end of the carton. The flaps are finally folded inwardly and sealed to complete the closure. The lateral seam may, when folded down, overlap one flap 24 and be folded back over the flaps 23 whereupon the flaps 24 are folded down and sealed. In apparatus for closing the carton, pairs of rotary folders 31 at the first folding station fold the flaps 23 outwardly. At the second folding station, the upstanding lateral seam 32 passes between a pair of ploughs 36, 37 which guide the seam into the end plane of the carton. The flaps 23, 24 are then closed in the usual manner.
Patent GB-813683-A (GB)
Title: Improvements in and relating to gas-blast electric switchgear
Inventor: BOLTON ERIC
IPC: H01H33/70
Filed: 1955-02-04
Abstract: 813,683. Gas-blast switches. ENGLISH ELECTRIC CO. Ltd. Feb. 3, 1956 (Feb. 4, 1965], No. 3344/55. Class 38 (5). A circuit-breaker com. prises a tubular fixed contact 3 and a movable tubular contact 2 mounted in an insulating housing 1 to which pressure gas may be applied at the lower end from an air receiver and valve (Fig. 3, not shown). The gas flow is indicated by the arrows and raises the contact 2 by piston action, the arc formed at 10 being transferred to an arc probe 4 situated in the contact 2. The upper end of the contact 3 is tapered and the adjacent part of the inner wall of the housing 1 is constricted so that the blast in the annular passage 6 is directed into the bore 7. The dimensions of the contact 3 are such that between # and “ of the gas passing upwards to the arc region flows through the bore 5. The contact 2 has a constriction at its lower end and the dimensions are preferably such that the exhaust passes in approximately equal amounts through the bore 7 and annular passage 8. A spring (Fig. 3, not shown) restores the contact 2. For very high voltages the contacts may be immersed in compressed air, in which case the breaker is controlled by an exhaust valve mounted at the opposite end of the housing 1 to which the air receiver is connected.
Patent GB-1422774-A (GB)
Title: Hydrogenation process for fatty acids and their derivatives
IPC: C07C231/12
Filed: 1972-01-25
Abstract: 1422774 Fatty acid hydrogenation UNILEVER Ltd 23 Jan 1973 [25 Jan 1972] 3426/72 Heading C2C [Also in Division C5] Polyunsaturated fatty acids (C 6-26 ) and esters or amides thereof are hydrogenated in the presence of a polar solvent and a palladium (II) supported catalyst. The support material may be ion-exchange resin, preferably a copolymer of styrene and divinyl benzene. The solvents include alcohols, ketones and fatty acids (C 2 - C 6 ). Examples describe the hydrogenation of free fatty acids from tallow, and palm oil, and of palm oil, the stearin fraction of cottonseed oil, olive oil fatty acid, and refined soyabean oil, using very many resins as the supports for the catalyst. The Pd II is preferably introduced using PdX 2  where X 2  is a soluble anion, e.g. chloride or M 2 PdX 4  where M is an alkali metal or ammonium, and the anion exchange resins are a polystyrene divinyl benzene copolymer with quaternary ammonium groups, diethylamino groups, or mixed bases thereof, benzyl-trimethyl ammonium active groups, and d-n-propylamine and a phenol-formaldehyde polymer with aromatic amine groups. Anion-exchange resins such as polystyrenedivinyl benzene copolymers with sulphonic acid or carboxylic acid groups may also be used.
Patent GB-1371622-A (GB)
Title: Polycondensation catalyst
IPC: C08G63/86
Filed: 1972-02-16
Abstract: 1371622 Polycondensation catalysts COURTAULDS Ltd 16 Feb 1972 [29 Jan 1971] 3453/71 Heading B1E [Also in Division C3] Catalysts comprise ammonium hydrogen germanate (NH 4 H 3 Ge 2 O 6 ) and germanium dioxide, preferably dissolved in ethylene glycol.
Patent GB-1242370-A (GB)
Title: Spectrometer apparatus
Inventor: NELSON FORREST ARTHUR
IPC: G01N24/00
Filed: 1968-08-20
Abstract: 1,242,370. Gyromagnetic resonance spectrometers. VARIAN ASSOCIATES. Aug.20, 1968 [Aug.21, 1967], No.3514/71. Divided out of 1,241,843. Heading G1N. [Also in Division G3] In a gyromagnetic resonance spectrometer having an averaging computer for adding the results of a large number of spectrum scans, the field/ frequency ratio and field homogeneity are automatically optimized between scans according to a predetermined programme, Fig.3, thereby increasing the accuracy of the final averaged recorded spectrum. Other parameters that may also be optimized during the calibration routines are:-field strength of the resonance-exciting radio frequency field, scan rate, sample spinning rate, and the frequency and strength of a spin decoupling radio frequency field. Methods by which individual parameters are optimized are described in the parent Specification. In the N.M.R. spectrometer shown in Fig.1, the calibration routine begins at To, Fig.3, when the programmer 28 opens switches 16, 25 and 26, closes switch 27, and stops the recorder 9. Field bias generator 14 is then automatically adjusted in dependence on the dispersion mode resonance signal, detected at 17, of a control sample, e.g. T.M.S., intermixed with the analysis sample or in a separate concentric cylindrical compartment. At T 1  switch 25 and 26 are closed and the current in field gradient cancelling coils 21 is automatically adjusted to null the output of L.F. phase detector 24. At T 2  scanning of the analysis sample spectrum is initiated by opening switches 25, 26 and 27, closing switch 16, and starting the recorder 9. Closing switch 16 connects a field offset generator 29 to shift the polarizing field from the value determined by the control sample to a value from which to initiate the field scan. At T3 the calibration cycle begins again. Alternatively, the programmer 28 may produce the sequential order of scan, homogeneity adjustment, field-frequency adjustment to correct any error in the field-frequency adjustment caused by the homogeneity adjustment. An alternative N.M.R. spectrometer, Fig.4 (not shown), is similar to that shown in Fig.1 except that the analysis sample spectrum is scanned in the frequency sweep mode by modulating the magnetic field with a variable audio frequency derived from a gyromagnetic oscillator using a separate control sample, e.g. water. A switch (42) controlled by the programmer (28) connects the field modulator (4) to be controlled by the output of the analysis channel during calibration using the T.M.S. internal control sample and to the output of the external control channel during scanning.
Patent GB-1495665-A (GB)
Title: Pyrimidines
IPC: C07D239/56
Filed: 1975-01-28
Abstract: 1495665 Pyrimidine compounds PRODUITS CHIMIQUES UGINE KUHLMANN 28 Jan 1975 [29 Jan 1974] 3579/75 Heading C2C The invention comprises compounds of formula and their salts with pharmaceutically acceptable acids, wherein R 1  and R 2  are each alkyl, benzyl or (possibly substituted) Ph, or NR 1 R 2  forms a heterocyclic ring; X is dialkylaminoalkyl or R 3 ; Y is Cl, alkoxy, dialkylaminoalkoxy or OR 4 ; and R 3 , R 4  are each a saturated N-heterocyclic ring. These compounds are prepared by reacting the corresponding 4,6-dichloro- or 4-Cl-6-XO-pyrimidine with the appropriate alcohol. Therapeutic compositions which may be administered orally, parenterally or rectally comprise compounds of the above formula; they have hypoglycaemic, hypolipaemic, hypocholesteraemic, hypophospholipaemic, spasmolytic, coronarydilatory and analgesic activity.
Patent GB-872323-A (GB)
Title: Manufacture of sausage and ground meat products
IPC: A23L13/60
Filed: 1959-02-02
Abstract: A ground meat filling free from water and fat separation in tins or impervious sausage casings is made by adding to a filling composition containing salt, meat prepared by freezing before rigor mortis develops, maintaining the meat in frozen condition at a temperature of 28 DEG  F. or lower, comminuting the meat either before freezing or while in an unthawed condition, and upon thawing the meat promptly dissolving the myosin released from the meat in the salt (such as sodium chloride) present for the ground meat composition.  According to an example, cow meat, hot boned within 1 to 1 1/2 hours after slaughter, was ground through a 2 inch plate and was packed in 60 to 70 lb. lots in polyethylene-lined paper bags.  The meat so packaged was stacked in a -30 DEG  to -40 DEG  F. sharp freezer within 2-3 hours after slaughter; after 1 or 2 days the bags were removed from the sharp freezer and stored at 0 DEG  to -15 DEG  F. until ready for use.  The frozen meat, tempered by bringing it to a temperature of from 10 DEG  to 20 DEG  F., was introduced into a chopper along with a sufficient amount of fresh or thawed meat to obtain the desired chopping temperature, salt, ice and other batter ingredients; because of the low chopping temperature, the fat for the batter was heated to 110-115 DEG  F. before being chopped into the other ingredients.  In an alternative procedure, the unthawed meat was mixed with cold brine, preferably containing 3 to 6% by weight of sodium chloride relative to the total moisture content of the ground meat product, and the particles were allowed to thaw just prior to introduction into the chopper.  The prepared batter was stuffed into a casing formed of impermeable material, such as vinylidene chloride copolymer, and heat-processed.
Patent GB-710582-A (GB)
Title: Improvements in or relating to the manufacture of products such as insulating ropes and the like
IPC: D01H4/00
Filed: 1952-02-13
Abstract: 710,582. Wadding. SOC. ANON. DES MANUFACTURES DES GLACES ET FRODUITS CHIMIQUES DE ST.- GOBAIN, CHAUNY, & CIREY. Feb. 13, 1952 [Feb. 13, 1951] No. 3873/52. Class 142(4) [Also in Groups V, XIII and XXV] Fibres of glass or other thermoplastic and undulating material are carried by a current of gas on to a conical surface 1 of wire mesh having at the apex a forming cone 3 into which the fibres are drawn and compressed, being withdrawn through an exit 4 in the form of a rope by drawing means and " netted" by an apparatus 8. In a modification the mesh surface 1 and cone 3 are each formed with a recess which acts as a guide for a tissue of glass fibres on which the fibres are deposited and which envelops the 'fibres issuing from the exit, which is provided 'with a tongue for adjusting the degree of compression.
Patent GB-781951-A (GB)
Title: Manufacture of plain bearings
Inventor: ISAACS THOMAS LEONARD
IPC: B21K1/04
Filed: 1955-02-10
Abstract: 781,951. Making bearings; forging. GLACIER METAL CO., Ltd. Jan. 30, 1956 [Feb. 10, 1955], No. 3976/55. Classes 83 (2) and 83 (4). A plain cylindrical bearing is made by cutting a rectangular blank from metal strip or sheet, bending the blank into substantially cylindrical form whose wall thickness is less than and length greater than that of the finished bearing, confining the blank in an annular die chamber 5 whose inner and outer cylindrical walls have substantially the same diameters as those of the finished bearing, and upsetting the blank into close contact with the walls of the die chamber. The initial blank, which may be preformed with one or more oil grooves and/or oil holes by pressing and punching, is bent around a cylindrical mandrel 2 whose diameter is equal to the internal diameter of the finished bearing. The mandrel and blank are then inserted in the die 5 and the blank is upset between shoulders 4, 7 on the mandrel and die. The upset blank is withdrawn with the mandrel and is stripped therefrom by engagement with a stationary sleeve 12, Fig. 4 (not shown), surrounding the mandrel. In an alternative form of mandrel the shoulder 4 is provided by a sleeve 10, Fig. 6, surrounding and moving with the mandrel. Chamfered ends may be formed on the inner and outer surfaces of the bearing by means of corresponding lips 13, 14, 15, 16 on the die and mandrel. Alternatively, chamfered portions 13, 14 only are provided on the mandrel and die, Fig. 5 (not shown), whereby in a final pressing operation an inner chamfer is provided at one end and an outer chamfer at the other end of the blank, Fig. 7 (not shown); thereafter the blank is reversed in the die and the pressing is resumed to form chamfers on the other two edges.
Patent GB-487261-A (GB)
Title: Improvements in the manufacture and production of dyestuffs of the phthalocyanine series
IPC: C09B47/12
Filed: 1937-02-10
Abstract: Dyestuffs of the phthalocyanine series are manufactured by heating phthalocyanines with halogen fatty acids, e.g. to at least 100 DEG C.  If the treatment is continued long enough there are obtained dyestuffs soluble in water or alkalies, which dye cotton or may be converted into water-insoluble salts, e.g. of barium and calcium. The water-insoluble dyestuffs may be used as body dyestuffs.  The initial phthalocyanines may contain metal, e.g. copper, nickel, iron or aluminium, or may be free from metal.  In the latter case, if the reaction is effected in the presence of metal compounds, metal enters into combination.  In examples: (1) copper phthalocyanine is heated with trichloracetic acid in the presence of aluminium chloride and sodium chloride; the product dyes cotton green-blue shades; (2) the reaction of (1) is effected at a higher temperature in the absence of aluminium and sodium chlorides; (3) nickel phthalocyanine is heated with trichloracetic acid, yielding a water-insoluble dyestuff suitable for colouring distempers and a water-soluble dyestuff which dyes cotton; (4) iron phthalocyanine is heated with trichloracetic acid; (5) metal-free phthalocyanine is heated with trichloracetic acid and aluminium chloride, producing an insoluble dyestuff and an alkalisoluble dyestuff, both containing chlorine and aluminium. Dichloracetic acid is specified as an additional halogen fatty acid, and the Provisional Specification contains an example in which this acid is heated with copper phthalocyanine.
Patent GB-904091-A (GB)
Title: Improvements in or relating to the nitration of furan compounds
IPC: C07D307/71
Filed: 1960-02-04
Abstract: Methyl 5-nitro-2-furyl ketone is prepared by nitrating methyl 2-furyl ketone with a mixture of nitric acid and acetic anhydride, which may contain a small quantity of another strong mineral acid as a nitration catalyst, and treating the nitration intermediate thus produced, without dilution with water with a salt of a strong inorganic base and a weak acid (e.g. sodium or potassium acetate). The product may be recovered by treating the final reaction mixture with water and crystallizing, further amounts being obtained from the mother liquor by solvent extraction or treatment with semicarbazide.
Patent GB-230245-A (GB)
Title: Improvements in or relating to anti-vibration forks for cycles, motor cycles and the like
IPC: B62K25/16
Filed: 1924-02-16
Abstract: 230,245. Osborne, W. H. Feb. 16, 1924. Spring devices. - In a link - mounted spring fork of the type provided with a vibration-absorbing frictional washer g between discs a, h associated with the spindle bearing tube b and the link i respectively, rotation of the disc a relatively to the tube b is prevented by one or more lugs a<1> and a screw pin a<3> engaging a limb d connecting the bearing tube at each end with one of the main down tubes of the fork. The end of the tube b is accommodated within a concentric annular flange projecting from the face of the disc a. Lugs h<2> on the disc h engage the top and bottom of the link i, which is held in spaced relationship from the disc h by a boss projecting from the outer face of the latter.
Patent GB-106472-A (GB)
Title: Improvements in Valve Actuating Mechanism for Internal Combustion Engines.
IPC: F01L1/12
Filed: 1917-03-20
Abstract: 106,472. Soc. des Moteurs Gnome et Rh¶ne. April 3, 1916, [Convention date]. Valves.-A lift valve in the cylinder head is suspended from the operating - lever with a certain amount of play. The lever b is forked at d and embraces flat sides on the valve stem e. The connecting-bolt f has slight play in the stem e, and play is provided also between the stem and the bottom of the fork l.