baber/WOPTO huggingface dataset:
Patent GB-500790-A (GB)
Title: Improvements in neutralised high-frequency amplifiers
IPC: H03F1/16
Filed: 1938-09-07
Abstract: 500,790. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 7, 1938, No. 26177. Convention date, Sept. 10, 1937. [Class 40 (v)] In a high-frequency amplifier having neutralizing capacity C1 to prevent reaction between the input and output circuits and in which, for short waves, the conductors 5, 7, 11 connecting the valve electrodes.to the rest of the circuit have appreciable inductance, these leads are tuned to the frequency of the oscillations to be amplified by condensers 15, 17, 18 and the grid lead 7 has a damping resistance 19 shunted by a circuit 20, 21 tuned to the frequency to be amplified. To prevent loss of amplification by mutual induction between the conductors, a coil 22 in the cathode lead may be coupled to coil 20 in the tuned circuit 20, 21. The application to push-pull amplifiers is also described.
Patent GB-1273629-A (GB)
Title: Variable flame oxy-fuel burner and method
IPC: F23D17/00
Filed: 1969-05-22
Abstract: 1,273,629. Burners. AIR PRODUCTS & CHEMICALS Inc. 22 May, 1969 [29 May, 1968], No. 26214/69 Heading F4T. A metallurgical burner for use in a metallurgical furnace comprises an outer water cooled jacket 10 terminating in a shaped ring portion 26, central conduits 58, 70, for a water cooled bluff body 60, and an intermediate sleeve 40 terminating upstream of the ring 26 and body 60 in a shaped water cooled ring 42, thereby defining passages 48, 49 for fuel e.g. natural gas and oxygen, or vice versa, ending in annular nozzles 76, 80 respectively, in fluid communication with an annular flame orifice 82, and is characterized in that the sleeve 40 and body 60 are parts of a central portion 12 which can be moved longitudinally relative to the jacket 10, e.g. by hydraulic means to vary the flame shape. In use the velocity of gas issuing from nozzle 80 must be greater than that from nozzle 76. As portion 12 moves upstream relative to the jacket from a position wherein frusto-conical surfaces 54 and 34 on rings 42 and 26 respectively are aligned, when the looanda effect is operative to give an umbrella shaped flame, the flame changes to ball shaped and finally to pencil shaped as a cylindrical surface 30 on the ring 26 becomes effective to deflect flow from the nozzle 80. As shown, the ring 26 includes a sharp edge 38 for detachment of the fuel-oxygen flow when an umbrella flame is produced, but the edge may be rounded to give a reverse direction flow and a flatter umbrella. The body 60 incorporates a frustoconical surface 64 with a generating angle α/2 of 45-75 degrees, preferably 60 degrees. It is preferred that water is supplied initially to the outer section of jacket 10 and returned via the inner section, although flow in either direction is possible. By shutting off the fuel supply, the burner may be used as an oxygen lance.
Patent GB-810108-A (GB)
Title: Phthalazine compounds basically substituted in the 1-position
IPC: C07D237/30
Filed: 1956-08-28
Abstract: The invention comprises compounds of the formula <FORM:0810108/IV (b)/1> and salts thereof, wherein <FORM:0810108/IV (b)/2> is the residue of a tertiary amine, and which optionally contain substituents which do not react with alkali metal compounds of hydroxyalkylamines, in the 4-position and/or in the benzene residue R; it comprises also a process for preparing these compounds by reacting the alkali metal compound of a tertiary hydroxyalkylamine with a 1-halogen-phthalazine.  Suitable hydroxyalkylamines include diethylamino-, dibutylamino-, piperidino-, pyrrolidino- and morpholino-, ethanol, 1-dimethylamino-2-propanol and hydroxyethyl-methylaniline.  The products are used therapeutically as analgesic or antiphlogistic agents, suitably in the form of salts such as the hydrochlorides, hydrobromides, sulphates, benzoates, picrates, citrates or gentisates.  Examples describe the preparation of 1-diethylaminoethoxy-, 1-dimethylaminoethoxy - and 1 - dibutylaminoethoxy - phthalazine and 1 - diethylaminoethoxy - 4 - methylphthalazine.  1-Chlorophthalazine is prepared by treating 1 - oxo - 1 : 2 - dihydrophthalazine with phosphorus oxychloride.  The preparation of the corresponding 4-methyl derivative by known methods is also referred to.  Specification 808,636 is referred to.
Patent GB-247633-A (GB)
Title: Improvements in the automatic steering of ships and other craft
IPC: G05D1/02
Filed: 1924-11-05
Abstract: 247,633. Henderson, Sir J. B. Nov. 5, 1924. Accelerometers.-In automatic steering of ships, airships, and other dirigible craft, means are provided for measuring the angular acceleration o of the craft and a component control of the helm x is applied in phase therewith. This control may be combined with controls depending upon displacement and angular velocity of the craft. The rotor axis 4 of a gyroscope 1 is placed fore and aft and is constrained by one or more pairs of opposed springs in a box 5 loosely mounted on the trunnion 2b and geared to a motor 6, the latter being controlled by a roller contact 9 carried by the trunnion 2<a> and moving over a commutator 11. The contacts 11 are fixed to the frame 3 or supported through springs thereon. Angular motion of the ship results in movement of the roller contact to revolve the motor 6 proportionately to the angular velocity o. An extension of the motor shaft 12 drives through gearing 13-14 a differential case 15. One of the differential gears is driven by a motor 18 with step-by-step control from the gyrocompass, the other gear is on a shaft 19 and drives the firstgear of a second differential 20 the case being driven from a shaft 21 the speed of which is proportional to the rate of movement x of the tiller, whilst the second shaft 23 carries a pinion 24 driving a quadrant 25 with a motion proportional to the rate of movement x of the a viscous brake the rotor 26 being keyed to the shaft and the box 27 pivoted thereon with a constraining spring 28 one end of which engages a fork 29 on the frame. The displacement of the box 27 is proportional to the speed of the shaft and therefore to the acceleration o, and it carries a roller 30 contacting with a two part commutator 31 on the quadrant 25. The steering gear comprises a motor 35 which drives a hydraulic variable speed pump the slow speed shaft 38 of which actuates the rudder. The control member 39 of the speed gear s actuated by a reversible motor 40 which also drives the shaft 21, and a cam 45 adapted to break the circuit at either limiting position of the control 39. The motor 40 is controlled from the roller contact 30, that is proportionably to acceleration o. Specifications 185,162 and 213,023 [both in Class 97 (iii), Thermometers &c.], are referred to.
Patent GB-834988-A (GB)
Title: Improvements relating to processes for the purification of crude sugar solutions
IPC: C13B20/12
Filed: 1958-08-18
Abstract: In a process for purifying aqueous crude sugar solutions, a neutral solution of sugar, e.g. cane-sugar, invert sugar or wood-sugar, is treated, e.g. at a temperature between 15 DEG  and 100 DEG  C., with a solid water-insoluble metal oxide which adsorbs impurities, e.g. alphaferric oxide or manganese dioxide, and the purified sugar solution and the metal oxide charged with impurities are then separated.  The crude sugar solution may be mixed with the metal oxide and separation may be effected by decantation or filtration. Alternatively, the crude sugar solution may be passed through one or more columns of the metal oxide.  Alpha-ferric oxide charged with impurities may be heated to a temperature between 200 DEG  and 220 DEG  C., e.g. in a current of hot air, and used again.  Swiss Specifications 274,509 and 280,059 are referred to.
Patent GB-628706-A (GB)
Title: Improvements in agricultural implements constructed with interchangeable ploughs or other operating devices
IPC: A01B3/16
Filed: 1947-10-03
Abstract: 628,706. Agricultural implements. KNIGHT, G. H. F., and MECHANISED HORTICULTURAL IMPLEMENTS, Ltd. Oct. 3, 1947, No. 26651. [Class 6(i)] In an agricultural implement having two or more alternative operating devices, i.e. ploughs 2 carried by a shaft 1 rotatably mounted about a horizontal axis, the shaft is adapted to interlock with a tubular bracket 3 by means of pins 8 co-acting with bayonet slots 7 in said bracket, a compression. spring 6 being provided to retain the interlocking joint elements in the locked position. The implement may be detachably attached by a leg 4 to the implement frame by means described in Specification 583,006.
Patent GB-1025003-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B65H29/56
Filed: 1963-07-05
Abstract: 1,025,003. Duplicating machines; sheet delivering. W. RITZERFELD, and G. RITZERFELD. July 5, 1963 [Aug. 13, 1962], No. 26673/63. Headings B6C and B6H. A rotary duplicating machine for printing from a master sheet 3, Fig. 1, mounted on a printing drum 1 on to copy sheets 15 to be printed by a counter-pressure roller 4, comprises a stripper 9 mounted in a traverse 70, which is pivotally mounted on a shaft 23, the stripper having tongues 8, co - operating with grooves 10 in the printing drum 1. The copy sheet 15 is advanced by a feed shaft 12 and feed roller 13 and moistened by a moistening mechanism 14 and after the leading edge of sheet has passed the printing line A-B the tongues 8 deflect the leading edge into engagement with guide rollers 18 driven synchronously with the drum 1 by the counter-pressure roller 4 through gears 16 and 17, the sheet then passing over deviating wires 19 into conveyer belts 20, which in conjunction with pressure rollers 32, Fig. 2, feeds the sheet to a delivery station. After the leading edge of the sheet 15 has passed over the tongues 8 of the stripper 9 a cam 24 fast with the drum 1 and co-operating with a cam follower 25 on an arm 27 swings the stripper 9 into the position shown in dash-dotted lines in Fig. 1, whereupon the tongues are lifted out of the grooves 10. When during the printing cycle a further cam 34, Fig. 2, raises an arm 37, co-operating therewith, the moistening mechanism is lifted and an associated linkage lowers the pressure rollers 32 into engagement with the sheet conveyer belts 20.
Patent GB-385254-A (GB)
Title: Improvements in photographic enlarging apparatus
IPC: G03B27/34
Filed: 1932-09-26
Abstract: 385,254. Photographic enlarging apparatus. 1. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Sept. 26, 1932, No. 26683. Convention date, Sept. 26, 1931. [Class 98 (i).] In photographic enlarging apparatus the objective is focused by the operation of placing the frame carrying the light-sensitive paper on which the enlargement is to be made into position for the exposure. As shown, the objective carrier 3 containing the objective 31 is connected by bellows to the casing 1 for the source of light, and slides on guide-rails 2, parallel to which is a bar 5 hinged to the wall and on which are mounted at fixed distances from the objective 3 frame carriers 6. Co-operating with the carriers 6 are frames 7 each provided with a pin 8, the pins 8 being spaced at different distances from the corners of the frames to ensure that when a frame 7 is inserted into the corresponding carrier 6 the pin 8 engages the control lever 9 and moves it into the position necessary for focusing the objective. The control lever 9 is pivoted at 10 and one arm is connected with the rack-and-pinion mechanism 11, 12 while the other arm is engaged by the pin 8. The frame 7 is pushed into the corresponding carrier 6 until the fastener 20 can be locked. The lever 9 is biased by a spring 13. The pinion 11 is connected by gearing to a rack 18 on the camera baseboard. The frame carriers 6 have clamps engaging pins on the rails 2.
Patent GB-242082-A (GB)
Title: Improvements in funnels for use in the transfusion of liquids
IPC: B67D7/76
Filed: 1924-11-08
Abstract: 242,082. Rycroft, N., Corner, J. A., and Meates, T. W. Nov. 8, 1924. Funnels. - A funnel in which a filtering or straining medium b is of substantially the same shape as the interior of the funnel a is formed with an inturned lip d for collecting any liquid which may drain from the funnel after use. As shown, the filter is detachable, being secured by the lip d to a ring c adapted to be pushed into the mouth of the funnel but in modifications the lip is either secured to a lock ring which holds the filter in place or is secured directly to the funnel by spinning over the edge thereof, the filter being then non-detachable.
Patent GB-503094-A (GB)
Title: An improved construction of laminated material
IPC: B27M3/10
Filed: 1937-10-02
Abstract: 503,094. Laminated wood ; screw propellers. FAIREY AVIATION CO., Ltd., and MORREY, P. Oct. 2, 1937, Nos. 26734 and 30775. [Class 145 (ii)] [Also in Group XXXIII] An intermediate layer in a plywood article, such as a screw propellor, consists of strips laid side by side with the grains of adjacent strips inclined to one another and to the grains of upper or lower layers. Each strip may be multiply, with the grams of adjacent sub-strips reversed. The strips.may be separated by further narrow strips or keys lying in perpendicular planes. Strength members, such as screw propellor blades, may have a main full length key and other keys diverging from one end such as the hub. Fig. 2 shows a section through a built up member and Fig. 1 an intermediate layer 17 which consists of three layers of sub - strips separated by fabric or irregular sheet metal 18. The groups of layers are separated by longitudinal keys 14 which may be of hard wood and laminated. The grain in each group in each sub-strip is inclined to that in adjacent groups whether on each side, or above, or below. Other layers of wood, 11, 12, 15, 16 may be provided, the whole being stuck together under pressure and heat. The keys may be parallel or inclined to the general direction of the article and may be integral with an intermediate layer of wood, as shown in Fig. 8. The keys in one layer may be convergent and inclined oppositely to those in another layer. Keys of channel, Maltese or Geneva cross section may be used, the plywood layers being fitted to them, as shown in Fig. 5. A screw propellor, Figs. 11 and 13, is constructed with a control key 27 which may extend over the whole or only part of the thickness of the blade, while shorter keys 14 diverging from the boss are provided, the layers as set out above being disposed between the keys.
Patent GB-257771-A (GB)
Title: Improvements in wash hand basins for use with baths
IPC: A47K1/10
Filed: 1926-03-25
Abstract: 257,771. Bingley, F., and Thorogoods, Ltd. March 25, 1926. Baths fitted with lavatory basins.-A washhand basin adapted to be supported across a bath comprises a frame b, preferably of wood, to which is secured a metal sheet a by bending the ends c under the frame. In holes f, g in the plate are carried a basin h and a soap, &c. dish k both formed of sheet metal. The basin may swivel for emptying or be secured to the metal sheet by seaming, welding, &c., and be provided with an outlet plug. Stops may be provided on the frame to prevent the device from slipping off the bath, but preferably rubber feet s are secured to the lower face of the frame.
Patent GB-1063683-A (GB)
Title: Light-water-cooled natural uranium power reactor
IPC: G21C1/20
Filed: 1965-06-24
Abstract: 1,063,683. Cooling reactors. ATOMIC ENERGY OF CANADA Ltd. June 24, 1965 [Aug. 31, 1964], No. 26871/65. Heading G6C. In a nuclear reactor power plant, light water coolant is boiled in pressurized fuel tubes surrounded by a heavy water moderator in a calandria tank. The steam-water mixture leaving the reactor passes through a separator, from which water is returned to the reactor and the steam fed directly to a turbine. Each pressure tube may contain either a number of separate fuel elements over which the coolant flows or a single column of fuel in each tube may be provided with a number of channels through which the light water flows. Uranium metal or oxide may be. used and a coolant gas flow can be provided between the fuel and the pressure tube. In each pressure tube the crosssectional area of the fuel is at least twice that of the remaining space in the tube.
Patent GB-817097-A (GB)
Title: The electrolytic manufacture of isoindolines and isoindoline derivatives
Filed: 1955-09-20
Abstract: The invention comprises N-aminoalkyl-3:4:5:6 - tetrachlorophthalimidines, wherein the amino alkyl group may be one containing at most 5 carbon atoms, a di-lower alkyl-amino-ethyl group, the lower alkyl group containing at most 5 carbon atoms, or an amino-ethyl group, the nitrogen atom of which is part of a saturated ring, such as a pyrrolidino-piperidino- or morpholino ring, and acid salts of these phthalimidines.  The invention also comprises 2-methyl-4:5:6:7-tetrachloroisoindoline and its acid salts.  The phthalimidines and the isoindoline are prepared by the electrolytic reduction of the corresponding phthalimides (see Group XXXVI).  The phthalimidines are obtained in the form of their salts or free bases; the latter can be reacted, to form salts, with inorganic or organic acids such as hydrohalic acids, sulphuric acid or phosphoric acid. The phthalimidines may be electrolytically reduced to the corresponding isoindolines and the latter di-quaternated as described in Specification 785,142. Examples describe the preparation of the above-mentioned isoindoline and of N-(21-dimethylamino - ethyl) - 3:4:5:6 - tetrachlorophthalimidine.
Patent GB-824342-A (GB)
Title: Composition having lubricating properties
IPC: C10M107/00
Filed: 1956-09-04
Abstract: A lubricating composition comprises (i) a hydrocarbon lubricating oil, a silicone oil, a synthetic normally liquid oleaginous ester of a carboxylic acid, or any mixture of such materials, and (ii) a polymer (having a molecular weight not higher than 10,000) of a perfluorochloro-olefin, said polymer having halogen terminal atoms and having been prepared by telomerization, in the presence of a sulphuryl halide, of the perfluorochloro-olefin alone or in admixture with another halogen-containing olefin.  Ingredient (i) may be mineral lubricating oil, a silicone (which may be halogen-bearing), an ester of a dicarboxylic acid such as adipic, suberic, azelaic, sebacic or phthalic acid or an ester of a monocarboxylic acid such as pelargonic acid.  The esters may be esters of alkanols, cycloaliphatic alcohols or acetylenically unsaturated alcohols. Ingredient (ii) may be a telomer of trifluorochloroethylene or difluorodichloroethylene or a cotelomer thereof with such halogenated olefins as vinyl or vinylidene chloride or fluoride. The lubricating composition may be a liquid or a grease.  In the latter case, it may contain thickeners (e.g. metal salts of organic acids and particularly of organic perfluorochlorocarboxylic acids, aryl-substituted ureas, or siliceous materials such as silica, metal silicates, clays, substituted ammonium derivatives thereof and estersils) and surface-active agents (e.g. amines produced by reacting ammonia or an amine with epichlorohydrin or with a neutral ester of metaphosphoric acid).  Other materials which may be added to the lubricating composition are molybdenum sulphide, graphite and metal sulphonates.  In the examples, the telomer employed is sulphuryl chloride-trifluorochloroethylene telomer and the ingredient (i) is dimethyl siloxane polymer, methyl phenyl siloxane polymer, mineral lubricating oil, di-(2-ethylhexyl) sebacate or adipate, di-sec.-amyl adipate, di-(3-methyl-heptyl) adipate or di-(methyl-cyclohexyl) adipate.  In some cases, the composition is thickened to a grease with butylated estersil.  One composition consisting of the telomer and dimethyl siloxane polymer is stated to be useful as a hydraulic fluid. Specification 781,525 is referred to.ALSO:A lubricating composition (see Group III) comprises a polymer (having a molecular weight not higher than 10,000) of a perfluorochloro-olefin, said polymer having halogen terminal atoms and having been prepared by telomerization, in the presence of a sulphuryl halide, of the perfluorochloro-olefin alone or in admixture with another halogen-containing olefin.  The polymer may be a telomer of trifluorochloroethylene or difluorodichloroethylene or a cotelomer thereof with such halogenated olefins as vinyl or vinylidene chloride or fluoride. In an example, trifluorochloroethylene is telomerized in a closed vessel at about 95 DEG  C., and in the presence of sulphuryl chloride and a carbon tetrachloride solution of benzoyl peroxide. The telomerization products are fractionated by distillation. Specification 781,525 is referred to.
Patent GB-703410-A (GB)
Title: Improvements in or relating to projectiles for smooth-bore mortars
IPC: F42B10/06
Filed: 1950-11-06
Abstract: 703,410. Ammunition projectiles. AKTTESELSKABET WEJRA. Nov. 6,1950 [Nov. 4, 1949], No. 27004/50. Class 9(1) A projectile adapted to be fired from a smoothbore mortar is guided by tail vanes 2 integral with a tube 1 which is mounted on a tube 3 containing a propellent. The vanes may be produced by a rolling or drawing operation, a light metal alloy being used for the vane unit. The unit may be mounted on the tube 3 by pressing or by a screwthread or it may be held in place by a plug 4 screwed into the tube 3. Alternatively, the vane unit may be integral with the charge tube.
Patent GB-627580-A (GB)
Title: Fracture plate
IPC: A61B17/80
Filed: 1946-09-09
Abstract: 627,580. Fracture plate. HARDINGE, M.G. Sept. 9, 1946, No. 27062. [Class 81(ii)] A fracture plate comprises a pair of overlapping metal strips 6 and 7 telescopically adjustable in length under control of a clutch device which allows contraction but prevents extension of the plate when in place on the bone. Flanges 8 and 9 on the outer strip 7 are bent over the flanges of the inner strip 6 one of which 9a is partially cut away along an angular line 14 to provide a space in the channel formed by the flange 9 for a small disc 15. A spring finger 16 formed by cutting out the flange 9a at 17 urges the disc to its clamping position.
Patent GB-1392625-A (GB)
Title: Shaving head for a dry-shaving apparatus
IPC: B26B19/26
Filed: 1972-06-09
Abstract: 1392625 Dry shavers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 9 June 1972 [12 June 1971] 27072/72 Heading B4B A shaving head for a dry shaver comprises a cutting member 4 provided with a number of blades 3 adapted to be reciprocated in contact with a perforated shear foil 17, the cutting member being mounted on a coupling member 9 so that it is tiltable about an axis K parallel to the direction of reciprocation of the cutting member. The coupling member 9 is provided with a pair of brackets 10 formed with slots 15 in which a pin 14 (providing the axis K) is slidable; a pair of springs 11 act against the pin to maintain the blades in contact with the foil. The coupling member is formed with grooves 12 adapted to co-operate with balls 7 which roll in recesses 8 provided in the housing 5; the coupling member may be reciprocated by a vibrator motor or by a rotary motor via a crank-and-slot device. As shown in Fig. 3, the cutting edges of the blades have a substantially semi-elliptical shape so that when the cutting member tilts as a result of pressure against the face, the cutting edges of the blades follow substantially the same curve Fig. 6 (not shown) thereby preventing the shear foil from being excessively deformed.