baber/WOPTO huggingface dataset:
Patent GB-1072946-A (GB)
Title: Tobacco
IPC: C07D207/333
Filed: 1965-07-27
Abstract: A tobacco product has added thereto a small amount of 1-methyl-2-pyrrolecarboxaldehyde as a flavourant.  The amount added is between 0.001 and 1.0% and preferably between 0.005 and 0.03% by weight of the additive which may be added in the form of a liquid solution or suspension.  The tobacco product may be, for example, tobacco, filter material or a tobacco substitute.
Patent GB-339973-A (GB)
Title: Improvements in or relating to gramophones
IPC: G11B17/16
Filed: 1929-08-16
Abstract: 339,973. Cowey, L. E. Aug. 16, 1929. Divided on 340,006. Magazine gramophones. -A magazine gramophone has a series of travs stacked upon the turntable, each tray containing a disc record, and, when the record in the top tray has been played, that tray is tilted by lifting it at a point near its edge so that the rotation of the turntable will cause the tray and its record to be transferred to an adjacent receiver. The machine illustrated employs six records each carried by a tray 1, 2, Fig. 1, each tray 2 being spigotted upon the rim 5 of the tray beneath it and carrying a locating pin 6 for its record. The lowermost tray 1 is positioned by a pin 4 on the turntable 3. The trays, which preferably bear on one another at three spaced points on the rims 5, have a peripheral flange 9, each adapted to be engaged by one of six fingers 10 on a vertical shaft 11 slidably and rotatably carried in frame plates 12, 13. The shaft 11 carries a pin wheel 20 having six pins 21 and a ratchet-toothed collar 22 which is pressed into engagement with a corresponding fixed collar 23 by a spring 24. The tops of the teeth on the collars 22, 23 are flattened. When the uppermost record has been played, the cessation in the movement of the tone-arm actuates a clutch so that a sleeve 42 on a shaft 15 will make a complete revolution. The sleeve 42 constitutes a common actuating member for the record-changing and tone-arm manipulating operations, as described in Specification 340,006. A strap 18, Fig. 3, driven by an eccentric 14 on the sleeve 42 partially rotates the shaft 11 and the engagement between the members 22, 23 causes the top finger 10 to engage under the rim 9 of the upper tray 2 and lift it so that the rotation of the turntable slides the tray and the contained record into a receiver 90, Fig. 5. The means for returning the tone-arm so that reproduction can commence from the record that is now uppermost on the turntable is described in Specification 340,225 [Group XXXVIII]. The played-records receiver 90 is semicircular and is carried by a cradle 91, pivoted at 92 on a horizontal axis, a link 93 controlled by a cam 94 on the spindle 11 being adapted to tilt the receiver progressively clockwise, Fig. 5, so that it will be in a convenient position to receive the record trays as they are discharged from the turntable. If the gramophone is carried in a small cabinet, the receiver 90 may be mounted in a hinged lid. When the final record has been played, the movement of the shaft 11 brings a brake-pad 27, Fig. 1, thereon into engagement with the turntable and brings the machine to rest after the sleeve 42 has executed approximately half a revolution. The stylus will then be lifted from the last record.
Patent GB-624638-A (GB)
Title: Improvements in or relating to magnetic recording
IPC: G11B20/06
Filed: 1946-10-30
Abstract: 624,638. Magnetic recording. STANDARD TELEPHONES & CABLES, Ltd., STARR, A. T., and MOODY, N. F. Oct. 30, 1946, No. 32234. Drawings to Specification. [Class 40 (ii)] In a recording apparatus employing a magnetic medium, high-frequency attenuation and other defects caused by variation in the magnetic properties of the medium are avoided by recording a carrier wave of 15 to 20 kcs/sec. modulated by the desired intelligence. In a preferred embodiment, frequency modulation is used, in which case amplitude attenuation or any similar form of distortion is immaterial, as the modulation amplitudes are represented by time differences between carrier cycles. It is found desirable to make the carrier waveform as near square as possible. This may be obtained by making the high positive and low negative parts near or past the saturation value of the medium, or by the use of a suitable carrier-frequency oscillator. Reproduction is effected by demodulating by means of a conventional integrator, amplifier and limiter, followed by a low-pass filter, frequency discriminator and detector.
Patent GB-1155910-A (GB)
Title: Improved Method And Apparatus for Indicating Non Alignment Of Fabric Passing Through A Machine
Inventor: KUSTERS EDUARD
IPC: G01N27/04
Filed: 1967-07-13
Abstract: 1,155,910. Indicating web position. E. KUSTERS, [trading as EDUARD KUSTERS MASCHINENEABRIK]. 13 July, 1967 [31 Oct., 1966], No. 32261/67. Heading G4H. The position of a web on a measuring roll is determined by a series of alternately conducting and non-conductive rings, the web being adapted to bridge adjacent pairs of conductive rings on each side of the roll to generate pulses which are passed to corresponding counters, the difference giving a measure of the deviation from a desired position. The system is designed to record the deviation of the centre of a web from the middle of the roll, the width of the web being variable. The web is of textile or paper having some conductivity owing to its moisture content. The conductive rings are located by intermediate plastic rings. Alternate conductive rings are connected to a common supply slip ring and the others are each connected to a separate slip ring. As the edge of the web moves laterally it bridges or unbridges pairs of conductive rings thereby making or breaking connections between the common slip ring and the other slip rings. Positive and negative pulses are produced by bridgings and unbridgings, which pass to counters 5, 5<SP>1</SP> recording the lateral movements on each side and the values in the counters are subtracted at 6 to give an indication of the deviation of the web from the centre of the roll.
Patent GB-461713-A (GB)
Title: Improvements in and relating to torsiometers
IPC: G01L3/10
Filed: 1935-11-22
Abstract: 461,713. Rotary-transmission dynamometers. WHITE, W. A., and WHITING, W. R. G. Nov. 22, 1935, No. 32464. [Class 106 (ii)] Relates to apparatus for measuring the relative angular displacement of two remote sections of a shaft by such displacement producing changes in an electric circuit containing interrupters and consists in actuating the latter by rings of cam-like projections spaced apart and rotating with the shaft. Two spaced-apart metal rings a<1>, a<2> insulated from the shaft at c are carried by the latter and each is provided with depressions d and projections e the depressions of one ring being axially aligned with the projections on the other. The rings operate a make-andbreak in the following manner. A quadrant f with a strap h is rotatably mounted on a boss i of the ring and carries a pin on which is mounted a lever k having a roller nt which is kept against the ring by a spring k<1>. The free end of the lever has an insulated contact n adapted to co-operate with a second insulated contact o on the quadrant. At least one quadrant is provided with worm teeth f engaging a worm f<2> which may be rotated by a wheel r. The contacts are connected to a circuit t including an electric instrument M, indicating torque or the time integral of the torque. When the shaft is rotating idly one of the interrupters is at make while the other is at break, and no current flows. When the shaft is under torque the circuit is closed for a time depending on the overlap due to torsional strain. The Provisional Specification also describes a form in which the rings carry insulated contacts which are engaged by brushes in a corresponding electric circuit.
Patent GB-175416-A (GB)
Title: Improvements in tractor draught attachments for agricultural implements
IPC: A01B63/00
Filed: 1920-11-17
Abstract: 175,416. Lowson, J. Nov. 17, 1920. Couplings for tractors.-Screw-and-nut mechanism is employed to vary the effective length of one side of a triangular coupling so that the tractor and trailer or agricultural implement may be adjusted laterally relatively to one another. The base bar a which may be attached to or form part of an implement is pivotally connected to a draw-bar b and a diagonal bar d, which passes through guides in a bracket f hinged at g to the draw-bar. The diagonal bar d is adjusted relatively to the bracket f by a screw i, bevel-gearing, and a handle o.
Patent GB-222011-A (GB)
Title: Improvements in electric controlling-switches
IPC: H01H83/12
Filed: 1923-12-29
Abstract: 222,011. Danielsson, D., and Allmõnna Svenska Elektriska - Aktiebolaget. Dec. 29, 1923. Controllers, actuating; controllers with no-volt release.-An electric controller 2 for starting a motor is operated in steps against a spring 10 through a ratchet and pawl 3 by means of a. handle 5. The first step from the off-position shown connects in circuit a no-voltage coil 8 which brings a non-return pawl 6 into engagement with the ratchet teeth. Subsequent oscillations of the handle, providing the no-voltage coil remains active advance the controller over any required number of steps. Failure of voltage takes both the non-return pawl and the operating pawl out of engagement with the ratchet and allows the. spring 10 to return the controller to its original position. An excessive current in the motor circuit acts through a relay 18 to cut out the no-voltage coil.
Patent GB-273587-A (GB)
Title: Improvements in tailors' measuring devices
IPC: A41H1/02
Filed: 1926-12-24
Abstract: 273,587. M³hlenbrock, H. Dec. 24, 1926. Measuring.-A tailor's measuring device to be applied to the person comprises a back tape 4, and three cross tapes 1, 2 and 3, the tape 1 being used for measuring the collar, the shoulders, and the sides, the tape 2 serving for the chest measurement, and the tape 3 for the waist measurement. The tape 2 is provided with arm gauges 11, 12, 13, and 14 and with levelling means 10. Hooks 6, 7 respectively engage with holes 6<1>, 7<1> after being passed round the figure. The tapes are each in two portions and the two portions of the tapes 2 and 3 are independently adjustable on the back tape by means of sliders 16, 17 thereby allowing for unsymmetrical figures. The arm gauges are slidable on the cross tapes, and are provided with apertures 14, 15 to show the graduations therethrough.
Patent GB-642307-A (GB)
Title: Cooking ranges
IPC: F24C7/10
Filed: 1946-11-04
Abstract: 642,307. Electric hot-plates; gas burners. CAMERON, W. P. Nov. 4, 1946, No. 32707. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 22, 1947.] [Classes 39(iii) and 75(i)] A range includes two or more heating units or plates superimposed on a common upright post 19 with their heating surfaces in horizontal planes, one or more of the units being rotatable in a horizontal plane about the post, the lateral rotation being limited by means between the post and the units. Three hot-plates 11-13 heated electrically or by gas or oil are mounted on a hollow post 19, the top and bottom plates pivoting thereon for independent use. The top unit may be a grill or waffle iron. Each unit comprises an annular casting 15 with a bracket arm 16 having a vertical bore 18 to receive the post 19. Vertically spaced horizontal slots 56-58 on the post 19 are complemental to slots 59-61 of the brackets 16. A lug 62 on each cover plate 39 of each bracket 16 extends through the slots of the post 19, and as. for the central hot-plate 12 the lug 62 occupies the full width of both slots 57, 60; the central plate is non-rotatable. The lengths of the slots of the upper and lower units is such that they are rotatable in opposite directions, the extent of movement being limited by the engagement of the lugs 62 with the ends of the slots. The units have legs 53 and the lower units have toggle switches 43 arranged to be turned off on superposing the units by the engagement of a depending cam 66 on a plate 39 on the underside of the bracket 16 with the switch handle 43 projecting through a slot 44 in the top of the bracket 16. When the units are swung apart, the switch is operated by a knob 35 on the side of each unit through a crank lever and a link. The leads from the units pass through the post 19 to a cable 47. The hot-plate casting 15, Fig. 18, has an inner annular flange 20 and has cast abutments 21 with lips 22 supporting a heating element 23. A diametral angle plate 24 engages under the flange 20 and is held by a central bolt 25. Each unit has a perforated base plate 30. The vertical post 19 may be supported by wall brackets, or several multiple units may be arranged on a post 19 mounted on the floor. With oil or gas heating, conventional burners and control valves replace the electric heaters and switches. The Specification as open to inspection under Sect. 91 comprises also a superposed spaced arrangement of the heating units each housed in an individual casting and sliding therein. This subject-matter does not appear in the Specification as accepted.
Patent GB-612616-A (GB)
Title: An improved method of producing metallic and alloy powder
IPC: B22F9/28
Filed: 1945-12-04
Abstract: Metallic and alloy powders are manufactured in spherical grain form by reduction of a metallic compound or compounds by a less noble metal characterized in that the said compound or compounds of all the metals to be contained in the alloy, and the less noble metal in gaseous or aerosol condition are caused to react, the temperature of the reaction chamber being mainained below the melting temperature of the reduced metal or alloy and the reaction participants are selected in such a way that heat is liberated during the reaction.  The reaction may take place under reduced pressure in a stagnant or a flowing atmosphere of neutral or reducing gas.  In the production of alloy powders, the compounds to be reduced may be in the form of mixed crystals in which the metallic constituents are contained in the same relative proportions as are required in the final alloy.  A mixture of salts may be used in which the metals are bound to different anions.  One of the alkali metals or alkaline earth metals may be used as the less noble metal.  The metallic compounds and the less noble metal may be formed in the same set of apparatus, e.g. by electrolysis of a salt melt, which may contain or consist of potassium chloride and/or potassium bromide. The salt, which is formed together with metal powder, is returned to the electrolysis melt.  Thus a salt melt may contain, as cation, a less noble metal such as zinc, cadmium or an alkali metal, which is to take part in the final reaction in gaseous form, and an anion or anions, preferably of the halogen group, which form volatile salts with the anode metal, the gaseous salt and gaseous metal formed by electrolysis being caused to react, regenerating the salt used as electrolyte together with metal powder.  The production of iron powder by reduction of ferric chloride with potassium is referred to.
Patent GB-941195-A (GB)
Title: Pirns and like yarn-carrying elements
Inventor: VAUGHAN GEOFFREY NOEL
IPC: B65H75/18
Filed: 1960-09-24
Abstract: 941,195. Reels. COTTON, SILK & MAN MADE FIBRES RESEARCH ASSOCIATION. Sept. 19, 1961 [Sept. 24, 1960], No. 32916/60. Heading B8M. A pirn of rigid material, e.g. wood, metal or plastic, is contoured on its yarn-carrying surface by a groove or grooves, e.g. a helical groove or a series of closely spaced annular grooves of triangular or trapezoidal cross-section, which prevent yarn sloughing-off the surface during unwinding. The groove(s) simulate(s) a wound layer of yarn.
Patent GB-863248-A (GB)
Title: Process for purification of threonine
IPC: B01J47/00
Filed: 1959-09-28
Abstract: Threonine is purified by converting crude threonine into the copper salt (preferably in the presence of alkali), reacting the copper salt with an aldehyde to form a hexaco-ordinated threonine-aldehyde-copper chelate, separating said chelate from contaminants by utilising the difference in solubility and decomposing the chelate by treating it with hydrogen sulphide, an acid (preferably in the form of an acidic ion exchange resin) or sufficient ammonia to regenerate threonine. Aldehydes specified for chelate formation are formaldehyde, acetaldehyde, chloroacetaldehyde and propionaldehyde.  The process may be used to separate threonine from allothreonine, serine or glycine.  The threonine chelate may also be prepared in situ from the copper salt of glycine and at least four molecules of acetaldehyde, when the allothreonine chelate formed simultaneously may be removed by virtue of its greater solubility.
Patent GB-657345-A (GB)
Title: Improvements in or relating to helicopter control apparatus
IPC: B64C27/54
Filed: 1948-12-23
Abstract: 657,345. Helicopters. SPERRY CORPORATION. Dec. 23, 1948, No. 33153. Convention date, Dec. 31, 1947. [Class 4] An apparatus for controlling the collective pitch and the cyclical pitch of the rotor blades of a helicopter is provided with means for producing automatically in response to an operation for changing the cyclical pitch, a co-related change of the collective pitch in order to prevent the retreating rotor blade from stalling by limiting its maximum angle of attack. Each blade 11 is connected by a pitch control arm 13 and a link 15 to the rotary part 17 of a swash-plate 19 arranged to be inclined in any azimuth about a pillar 18 coaxial with the rotor drive shaft 20. The pillar 18 is provided with a rack 22 engaged by a pinion 23 rotated through a differential gear 25 by a lever 24 to effect collective pitch variation. A plurality of arms 27 are secured to the pillar 18 above the rack 22 and each arm supports a pivotally mounted lever 29 connected by a link 32 to the fixed part of the swash plate 19 and rotated by bevel gears 35, 37 and one of a pair of shafts 39 positioned on the longitudinal axis of the aircraft. Each shaft 39 is coupled to a pilot's control member 58 by gears 42, 44, a cranked arm 46, a lever 51, a rod 53 and a lever 57 attached to the transverse torque tube 55 on which the member 58 is mounted. Transversely located shafts (not shown), similar to the shafts 39 are coupled to a control circuit 40 so that inclination of the member 58 in any azimuth will produce a corresponding cyclical pitch change of the rotor blades. The member 58 is provided with a depending portion surrounded by arcuate fingers 62, pivoted to the aircraft at 66 and interconnected by links 72. The whole system of fingers are urged into contact with the member 58 by a spring 74 and one finger carries an arm 84 fast therewith and positioned between a pair of contacts 85 formed on the periphery of a commutator switch 81 connected by gearing 83, 82, a flexible drive shaft 95 and further gearing 94 to the differential gear 25. Movement of the member 58 in any direction to effect cyclical pitch control will displace the fingers 62 and move the arm 84 into engagement with the appropriate contact 85 to energize an electric motor 91 connected by a gear train 93 and the gears 94 to the differential gear 25. Thus, the pinion 23 will be rotated to effect the appropriate degree of collective pitch change. After a given movement the commutator switch 81 will be rotated by " feed back " through the drive 95 to restore the contacts 85 and the arm 84 to their original relative positions to de-energize the motor 91. Specification 628,214 is referred to.
Patent GB-1017670-A (GB)
Title: Biocidal foams
IPC: C08J9/00
Filed: 1962-08-29
Abstract: A foamed rubber or synthetic resin is rendered biocidal by the incorporation in the foam-forming ingredients of an organotin compound of formula R3SnX or (R3Sn)2Y where R is a hydrocarbon radical, the total number of carbon atoms in all the R radicals in R3Sn being 9-12, X is a halogen atom, hydroxide or acetate and Y is oxygen.  The foamed material may be a polyurethane, rubber, polyvinyl, polyethylene or polystyrene. Many organotin compounds are specified including bis-(tri-n-butyltin) oxide, tributyltin chloride, tributyltin acetate.  In addition to the organotin compound, an ammonium compound of formula R1cNHdA where R1 is a hydrocarbon radical, A is an anion, c is 1, 2, 3 or 4, d is 0, 1, 2, or 3 and c+d=4.  In Example (1) a premix of N-ethylmorpholine, stannous oleate and bis-(tri-n-butyltin) oxide was added to a mixture of polyethylene glycol, tolylene diisocyanate, water and polysiloxane to obtain a polyurethane foam.  In examples (6) a mixture of bis-(tri-n-butyltin) oxide and dimethyl dodecyl amonium chloride was used.  In Example (9) a foam was prepared by mixing polyvinyl chloride, dioctyl phthalate, di-n-butyltin diisooctyl mercaptoacetate, p-p1-oxybis-(benzene sulphonyl hydrazide) and bis-(tri-n-butyltin) oxide.  In Example (10) pale crepe rubber, pine oil softener, ZnO, stearic acid, NaHCO3, 4,41 - thiobis - (3 - methyl - 6 - t. - butyl phenol), whiting, sulphur, tetramethylthiuram disulphide and bis-tri-n-butyltin oxide were mixed together and cured at 153 DEG  C.ALSO:A foamed rubber or synthetic resin is rendered biocidal by the incorporation in the foam forming ingredients of an organotin compound of formula R3SnX or (R3Sn)2Y where R is a hydrocarbon radical, the total number of carbon atoms is all the R radicals in R3Sn being 9-12, X is a halogen atom, hydroxide or acetate and Y is oxygen.  The foamed material may be a polyurethane, rubber, polyvinyl, polyethylene or polystyrene. Many organotin compounds are specified including bis(tri-n-butyltin) oxide, tributyltin chloride, tributyltin acetate.  In addition to the organotin compound, an ammonium compound of formulae R1cNHdA where R1 is a hydrocarbon radical, A is an anion, c is 1, 2, 3 or 4, d is 0, 1, 2 or 3 and c + d = 4.
Patent GB-844291-A (GB)
Title: Thermonuclear reactor
IPC: H05H1/12
Filed: 1958-10-17
Abstract: 844,291. Nuclear fusion reactors. UNITED STATES ATOMIC ENERGY COMMISSION. Oct. 17, 1958 [Dec. 24, 1957], No. 33180/58. Class 39(4). A nuclear fusion reactor comprising a closed reaction tube is provided with means for applying a multipolar magnetic field transverse to the axis of the tube. The reactor tube may be in the form of a figure of 8 and may be provided with pairs of coils 38 or groups of coils wound helically around it to provide a helical multi polar transverse magnetic field, the energising current being arranged to flow in alternate directions through adjacent coils or groups of coils. The coils may be outside or inside the coil 18 providing the axial confining field and may be wound at a pitch between five and twenty times the diameter of the tube. The strength of the helical field at the walls may be between one tenth and one fifth that of the confining field. It is explained in the Specification that the helical field increases the stability of the discharge in the reactor tube.
Patent GB-1124934-A (GB)
Title: Improvements in or relating to blast-cleaning machines
Inventor: MACMILLAN WILLIAM ROBERTSON
IPC: B24C9/00
Filed: 1965-08-04
Abstract: 1,124,934. Blasting. TILGHMAN WHEELABRATORLtd, 4 Oct., 1966 [4 Aug 1965], No. 3304/65. Heading B3D. A blast-cleaning machine comprises means for projecting abrasive material in an upward direction, guide means for receiving the material from the projecting means and deflecting the material downwardly on to a workpiece, and means for receiving the spent abrasive and returning it to the projecting means. Particulate abrasive from a hopper 35 passes down a feed spout 26 and between the blades of a small impeller (6) to be directed through an opening (24) in a control cage 23, being then taken up by the blades 4 of an impeller wheel driven through V-belts 12 by an electric motor 14. The abrasive is directed up through a guide 28 and deflected by a curved plate guide 29 on to a workpieee on a perforated table 31 rotated, through belts and reduction gearing 33, by the motor 14. Spent abrasive passing through the perforations is swept back into the hopper 35 by sweeper arms 36 secured to the underside of the table 31.