baber/WOPTO huggingface dataset:
Patent GB-1006813-A (GB)
Title: Improvements in drive assemblies of the kind comprising two or more asynchronous electric motors
IPC: H04B14/02
Filed: 1963-12-11
Abstract: 1,006,813. Control of A.C. motors. KOEFOED, HAUBERG, MARSTRAND & HELWEG, and TITAN A.B. Dec.11, 1963 [Dec. 21, 1962], No. 48871/63. Heading H2J. Asynchronous motors have their stator windings V 1 -V 3  and V 4 -V 6  connected in series, the rotors RO 1  and RO 2  being mounted on a common shaft. Each stator phase winding is shunted by a controlled rectifier e 1 -e 6 , the torques of the motors being in opposition. Thus, if the windings V 1 -V 3  are periodically short-circuited by the rectifiers e 1 -e 3 , the voltage applied to windings V 4 -V 6  will cause rotation in the direction determined by the rotor RO 2 . The motors may have unequal torques and need not have the same number of poles. In another arrangement, the motors drive separate loads.
Patent GB-488773-A (GB)
Abstract: 488,773. Electric control systems. JACKSON, L. MELLERSH-. (Buggie & Co. H. H.) Oct. 4, 1937, No. 26828. [Class 40 (i)] [Also in Group XL] A reproduction of a three-dimensional object is made by producing a series of contour lines representing suecessive sections of the object, projecting successive images of the respective contour lines through an aperture on to a light-sensitive cell which is thereby caused to control means for maintaining the aperture on the contour lines by movement of the cell towards and away from the work, and effecting movement of a cutting- tool as a unit with the cell. The Figures show apparatus in which contour lines, formed by casting a shadow on the surface of the object to be copied, are photographed, and images are projected from the photographs on to the cell. The object 1, Fig. 1, is given a good reflecting surface, e.g. by paint, and is mounted on a turntable 4. A beam of light is thrown by a projector 2 on the object, and is intercepted by the vertical edge of a mask 9 so as to produce a sharply defined contour line. The object 1 is turned through successive small angles, e.g. one degree at a time, and in each position the contour line is recorded by a camera 3, preferably of the motion picture type. The reproducing apparatus, Fig. 2, comprises a vertically movable table 14 on which is mounted on guides 15 a carriage 16, carrying a housing 11<1> for a light-sensitive cell and a motor 19 for driving a cutting tool 12 adapted to operate on the work 18. An electromagnet 13 having a moving-coil armature 22<1> is also mounted on the table 14, the armature being connected to the carriage 16. An opening 11<2> is provided in the housing 11<1>, exactly in the line of movement of the carriage, and a projector 17 is arranged at an angle to this line so as to throw on the aperture 11<2> an image from a film 28 on which the contour lines have been successively recorded. The angular disposition of the projector is the same as that of the recorder 3, Fig. 1, relatively to the axis of the beam illuminating the model. The light-sensitive cell is connected to an amplifier which supplies current to the coil 22<1>, and the effect produced by the image is such that the carriage, under the control of the coil and a spring 23, follows the imaged contour line as the carriage is vertically traversed by means of screws 14<1>. Thus the cutter 12 produces the required profile on the work 18 in a given plane. At the end of the vertical stroke, the next photograph in the series of contour line records is substituted, the work is advanced through the necessary angular increment, and the operation is repeated, and so on until the whole surface of the model has been copied. The slit 11<2>, which may be formed on the bulb of the cell itself, corresponds in shape to the effective contour of the cutter 12. A modification is described, Fig. 4 (not shown), in which reproduction of an object in intaglio is effected, e.g. for forming a mould. Reproductions of objects on an enlarged or reproduced scale, or with deliberate distortion, can be carried out in accordance with the invention.
Patent GB-1335193-A (GB)
Title: Thread-guiding device for spinning and doubling frames
IPC: D01H13/04
Filed: 1970-10-15
Abstract: 1335193 Thread guide G PREISSER 15 Oct 1970 [15 Oct 1969] 49010/70 Heading DID A thread guide comprises two pairs of thread guiding portions 21, 22 and 26, 28 arranged in planes above one another. The two portions of one pair are parallel to each other and extend at across, e.g. at right angles to at least one portion of the other pair, the two pairs of portions defining a substantially straight thread path. One of the thread guiding portions of one pair can be curved, Fig. 4 not shown. The guide can be formed from a single piece of bent wire, or from a combination of wire and moulded plastic.
Patent GB-980409-A (GB)
Title: A driving device in an electric sewing machine
IPC: D05B69/34
Filed: 1963-12-12
Abstract: 980,409. Friction gearing; securing flywheels on shafts. MEFINA S.A. Dec. 12, 1963 [May 24, 1963], No. 49071/63. Headings F2L, F2Q and F2U. [Also in Division D1] In a sewing machine, a transmission wheel is mounted on a movable support acted upon by a force tending to maintain the transmission wheel in contact both with a driving wheel on the spindle of an electric motor and with the flywheel of the machine, the arrangement being such that when the motor operates, the friction between the driving and transmission wheels tends to move the transmission wheel towards the driving wheel and flywheel, while manual rotation of the flywheel, when the driving wheel is stopped, tends to move the transmission wheel away from the driving wheel. As shown, a transmission wheel 13, having a rubber tyre 14, is pivoted at 15 to one end of a bar 16 formed with an axial slot slidably receiving a pin 20 carried by the casing of an electric motor 3. A bar 21 is pivoted at one end on pin 20, and carries at its other end a pin 22 slidably received in an axial slot in bar 16. A U-shaped spring 26, connected between pin 22 and the flanged end 30 of bar 16, serves to bias wheel 13 against both a driving wheel 12 on the spindle 11 of motor 3 and also against a flywheel 8 on the arm shaft 4 of the machine. Rotation of wheel 12 in the driving direction, indicated by the arrow thereon, thereby tends to move wheel 13 towards wheel 12 and the flywheel 8, while manual rotation of the flywheel in the driven direction, indicated by an arrow 31 thereon, tends, when the motor is inoperative, to separate wheel 13 from wheel 12. A knurled hand wheel 10, screwed on to the end of shaft 4, is adapted, when rotated in one direction, to force a sleeve 9, rigid with flywheel 8, against a sleeve 7 rigid with shaft 4 for coupling the latter to flywheel 8. Rotation of hand wheel 10 in the opposite direction serves to uncouple the flywheel. It is stated that in an alternative arrangement, motor 6 would be pivotally mounted and biased towards transmission wheel 13, which would then be carried by a pivotally mounted support.
Patent GB-1133920-A (GB)
Title: Anion exchangers containing secondary or tertiary amino groups
Inventor: SEIFERT HANS
IPC: C08F8/32
Filed: 1967-10-30
Abstract: 1,133,920. Anion exchange resin. FARBENFABRIKEN BAYER A.G. 30 Oct., 1967 [17 Dec., 1966], No. 49165/67. Heading C3P. Anion exchange resins are produced by reacting a chloromethylated copolymer derived from an aromatic monovinyl compound and cross-linking agent, with a primary or secondary amine in the presence of an aqueous solution of an alkali metal hydroxide at from 0‹ to 60‹ C. Suitable copolymers, which may be macroporous, are styrene, vinyl naphthalene and vinyl toluene, and suitable cross-linking agents are di- and tri-vinyl benzene. Suitable amines are aliphatic mono- and di-alkylamines. Preferably, a 30 to 50% by weight solution of sodium or potassium hydroxide is used. In the examples, chloromethylated cross-linked styrene polymer (a copolymer of styrene and 6% by weight of divinyl benzene, prepared by suspension polymerization and subsequently chloromethylated) was treated with aqueous solution of sodium hydroxide and dimethyl amine to produce an anion exchange resin.
Patent GB-1090713-A (GB)
Title: Marine propulsion devices such as outboard motors and stern drive units
IPC: B63H20/24
Filed: 1964-12-08
Abstract: 1,090,713. Outboard motors. OUTBOARD MARINE CORPORATION. Dec. 8, 1964 [Dec. 9, 1963], No. 49830/64. Heading B7V. [Also in Divisions F1 and F2] An outboard motor comprises an engine 227, Fig. 3, having an exhaust port 269 communicating via a sleeve 235 with an outlet in a lower unit 249, the sleeve being resiliently mounted in the lower unit. The outboard motor 211, has a transom bracket to which a swivel bracket is connected for vertical swinging about a horizontal pintle. The unit 221 swings about a vertical, kingpin and includes an I.C. engine 227 with a port 269 through which exhaust gases discharge into sleeve 235. A resilient pad 260 includes a cushion 237 which together with cushion 243 supports sleeve 235. A water pump 261 supplies coolant through discharge line 265 to engine 277 and via a branch 283 to water cooling jacket 247 and return line 267. Under engine cooling conditions exhaust gases flow through aperture 279 into chamber 277 and out through port 255. Additional muffling is obtained by passing water through pipe 287 into sleeve 235. In another embodiment the upper resilient cushion 337, Fig. 5 is cooled by circulation, of the engine coolant through arcuate passages 391, 397. In another embodiment the engine exhaust port has an extension which carries the upper resilient mounting for the sleeve. The water cooling jacket has a forward facing inlet at its lower end and rearward facing outlet at its upper end so that the propeller causes water circulation through the jacket. In a further embodiment the upper resilient mounting for the sleeve together with the water jacket are carried by a lower unit to which the engine is attached.
Patent GB-1163744-A (GB)
Title: Improvements in or relating to Chip Spreaders
Inventor: DOBSON JAMES FRANK
IPC: E01C19/20
Filed: 1965-11-24
Abstract: 1,163,744. Rollers. MUNICIPAL APPLIANCES CO. Ltd., and P. SUTCLIFFE. 24 Nov., 1966 [24 Nov., 1965], No. 50014/65. Heading B7H. [Also in Divisions A1 and E1] A self-propelled combined chipping spreader and rubber tyred roller in which the front roller wheels are steered and the two rows of rear rollers are staggered for full area rolling, has additional sets of staggered wheels 79, 79<SP>1</SP> for widening the effective rolling width. The additional wheels are carried unsprung in a framework 83 engaging dowels 80 on the main chassis and locked thereto by catch plates 84. A diagonal strut extends from a spring-loaded adjustment screw 86 to a point on the spreader hopper above the dowels 80.
Patent GB-1116824-A (GB)
Title: Polyacrylonitrile paper material
Inventor: TROEMEL GERHARD
IPC: D21H27/02
Filed: 1965-11-25
Abstract: Transparently embossed paper consists of fibrillated uncollapsed fibres containing at least 80% wt. bound polyacrylonitrile.  The fibres can be formed from a copolymer of acrylonitrile and methyl acrylate, methyl methacrylate, vinyl chloride, vinylidene chloride and ethylenically unsaturated monomers which contain acid groups e.g. sulphoric acid groups. Alternatively polyacrylonitrile fibres may be mixed with up to 20% wt. of regenerated cellulose fibres.  The paper is embossed at 190-240 DEG C.  The paper may be coloured with dyestuffs, e.g. of the triphenyl-methane, Astrazon or phthalocyanine type before embossing.  The counter-roller used during embossing may be made of rubber, cotton or paper.  The paper can be used for lampshades, wall panels, curtaining or blinds.
Patent GB-1284301-A (GB)
Title: Method of stimulating plant growth
Inventor: MILLER GEORGE THEODORE
Filed: 1969-10-13
Abstract: 1284301 Stimulating plant growth HOOKER CHEMICAL CORP 13 Oct 1969 50244/69 Heading C1B A method of stimulating plant growth comprises applying to soil in which plants are to be grown, in the absence of a biocide, from 50 to 4800 pounds per acre of a saturated aliphatic alcohol of 1-6 carbon atoms and subsequently cultivating plants in the soil. Conventional additives may also be present.
Patent GB-1246303-A (GB)
Title: Apparatus and method for photographic recording of instrument readings
Inventor: BRUYNE NORMAN ADRIAN DE
IPC: G03B17/24
Filed: 1968-10-24
Abstract: 1,246,303. Optical apparatus. N. A. DE BRUYNE. Oct. 15, 1969 [Oct.24, 1968], No. 50539/68. Heading G2J. [Also in Division G1] Apparatus for determining the melting point of a substance comprises (i) a mercury-in-glass thermometer 5 in a bath 4 controlled by a thermostat, itself controlled to change the temperature of the bath at a predetermined rate, the mercury column reflecting a beam of light on to a mirror 11A which is moved angularly at a predetermined rate to reflect the beam continuously and progressively across a photographic plate 11C, the graduation markings of the thermometer scale creating lines of contrast, (ii) a transparent tube 6 (containing a sample of a substance which, in melting, shows a phase change between opacity and transparency) supported in the bath 4 so that light from a small lamp 7 is beamed thereon and gated by the specimen (through a flexible light-pipe 8) so as to be incident upon the mercury column of the thermometer 5 and to be reflected thereby to the mirror 11A and thence to the plate 11C. In the course of a test, before the temperature reaches the anticipated melting point, a cable button 40, Fig. 6, is pressed and a cable 40A (a) closes a micro-switch 44 ((i) to start a motor (25) and operate a clutch (23) for driving the mirror 11A, and (ii) to light lamp 7, producing the beams for reflection) and then (b) opens the camera shutter by means of a cable 41 which is retained by a detent until released by an electromagnet 43. The graduation marks of the thermometer scale cause corresponding parallel temperature graduation lines to be recorded and movement of the mercury meniscus causes a sloping line of demarcation between the parts of the plate exposed and unexposed to the first beam as a record of the changing temperature. When the specimen becomes transparent light from a lamp 7 reaches the pipe 8 and emerges as a second beam impinging on the mercury column for reflection via the mirror 11A on to the plate whereon the beginning of a continuous line marks the phase change and comparison with the sloping line enables the temperature to be read. Towards the end of the drive of mirror 11A by motor (25) a micro-switch (26) is closed to switch on a lamp (16) and start a motor 27 which turns the thermometer 5 to "roll" on to the plate 11C a record of the scale numbers, finally closing a micro-switch 33 to cause electromagnet 43 to remove the detent from cable 41 so that the camera shutter closes and the micro-switch 44 opens. Several specimen tubes each with a lamp 7 and light-pipe 8 may be immersed in the same bath 4 and the apparatus may be used to calibrate a thermostatic control.
Patent GB-1140345-A (GB)
Title: Improvements in or relating to building panels
IPC: E04C2/20
Filed: 1965-11-29
Abstract: 1,140,345. Laminated building panel; moulding building elements. J. A. NICOSIA. 29 Nov., 1965, No. 50604/65. Headings B5A and B5N. [Also in Division E1] A building panel or ceiling tile of foamed polyurethane or other plastics is moulded around an embedded reinforcement network of expanded metal, or welded mesh 22-23, Fig. 3, shaped to define a plurality of planar surfaces. The tongued and grooved wall panel shown has an asbestos covering, is reduced in thickness at top and bottom to seat in ceiling and floor channels, and has vertical asbestos-lined trapezoidal channels 18 (e.g. for service ducts). The asbestos covering may be omitted altogether, or be replaced by a wood, marble, tile or brick covering. The trapezoidal apertures may also be omitted, may be lined with trapezoidal or circular paper or metal tubes and filled with plastics, or may be replaced by a single large rectangular aperture, Fig. 6 (not shown). Alternatively tubes may be attached to one side of a reinforced panel. In a modification a solid wall panel 111, Fig. 9 (not shown), seated in floor and ceiling channels and having vertical rebates is reinforced by flat metallic mesh (122) having a plurality of bent-out tabs (128). The panel may be moulded with or without heat from polystyrene beads or flakes, or from epoxy resin, or polyurethane of the polyester or polyether type. In a preferred method a foamable mixture is overcharged into a mould having the reinforcement attached, the excess mixture providing a pressure producing a smooth skin.
Patent GB-1346331-A (GB)
Title: Furniture unit for sitting and laying on
IPC: A47C31/02
Filed: 1971-11-01
Abstract: 1346331 Mattresses &c H SCHWITTERS 1 Nov 1971 [30 Oct 1970] 50749/71 Heading A4M A furniture unit comprises a foamed polyether core formed along each of its corner edges with an incision in which triangular folds 4 formed in a cover 2 are received and clamped. The cover 2 may be adhesively secured to the core. The unit may be rectangular or triangular.
Patent GB-1416693-A (GB)
Title: Railway track maintenance vehicle
IPC: E01B27/17
Filed: 1972-11-03
Abstract: 1416693 Railway track maintenance machines MATISA MATERIEL INDUSTRIEL SA 3 Nov 1972 [3 Dec 1971] 50790/72 Heading E1G In a railway track maintenance vehicle incorporating rail-gripping tools for both lifting and laterally aligning the track on which the vehicle runs, the gripping tools such as hooks 24, 25, Fig. 2, are mounted on a trackshifting frame I which (a) overlies the rails 9, 10 (b) is located by means such as flanged rollers 12, 13 riding on the rails, and (c) is suspended beneath the vehicle 2 by articulated links comprising track-lifting jacks 3, 6 and track-aligning jacks 4, 5, the gripping tools 24, 25 being mounted for both vertical and lateral positioning movement relatively to the frame so that they can be moved outwardly or downwardly to avoid or embrace obstructions such as merging points rails 54, 55. In addition either or both ends of the frame 1, seen in plan in Fig. 3, can be moved longitudinally of the track to enable the gripping tools to avoid obstructions such as fish plates. Tilting of the frame in a vertical plane is prevented by a yoke 15 on a horizontal slide 14. As shown the frame 1 has depending bearings 17, 18 for the shaft 16 of the flanged rollers 12, 13, the shaft being centrally biassed by springs 21 and shifted laterally by jacks 19, 20 to cooperate with the hooks 24, 25 for gripping and shifting the rails. The frame 1 comprises spaced parallel bars 40, 41 carrying slides 22, 23, Fig. 7, each actuated by a jack 44 and each carrying a vertically-slidable hook 26 which is lowered by a jack 31 to engage the head or (if required) the base of a rail. The lowered position of the hook 26 is determined by one of four stops 34..37 selected by an abutment horizontally displaced by a jack 39.
Patent GB-1478428-A (GB)
Title: Substituted diphenylethers and herbicidal composition  thereof
IPC: A01N39/00
Filed: 1975-12-11
Abstract: 1478428 Substituted diphenylethers ISHIHARA SANGYO KAISHA Ltd 11 Dec 1975 50894/75 Heading C2C  The invention comprises diphenylethers having the formula I where X represents a chlorine atom or a trifluoromethyl group; R represents a methyl or ethyl group and n represents an integer of 2 or 3 The compounds of Formula I wherein X is a CF 3  group comprises condensing 3 chloro-4-halobenzotrifluoride having the formula wherein Hal represents a halogen atom with a phenol derivative having the formula at a temperature of more than 100‹ C. for 1 to 20 hours in the presence of an alkaline material to obtain a 2-chloro-4-trifluoromethyl diphenylether of formula followed by nitration at 0‹ to 40‹ C. for 0À5 to 10 hours with 1 to 1À2 moles of nitric acid and 2 to 15 moles of an anhydride fatty acid having 2 or 3 carbon atoms. The compounds of Formula I wherein X is a halogen may be prepared by condensing 2,4-dihalonitrobenzene having the formula wherein Hal represents a halogen atom, with at least 2 moles of 2,4-dichlorophenol having the formula in the presence of an alkaline material for 3 to 6 hours at a temperature of more than 130‹ C. to give a compound of formula followed by reaction with an alcohol of formula RO(CH 2 CH 2 O) n H in the presence of an alkaline material for 0À5-30 hours at 50‹ to 80‹ C. The compounds of Formula I are used as herbicides.
Patent GB-1206398-A (GB)
Title: Dispersions of polymers
Inventor: OSMOND DESMOND WILFRID JOHN
IPC: C08L67/04
Filed: 1966-11-14
Abstract: 1,206,398. Dispersing polymers in organic liquids. IMPERIAL CHEMICAL INDUSTRIES Ltd. 6 Nov., 1967 [14 Nov., 1966], No. 50915/66. Headings C3B, C3G and C3P. Dispersions of particles of polymer in an organic liquid which is a non-solvent for the polymer, which dispersions have improved flow characteristics, are prepared by dispersing pre-formed particles of the polymer in the liquid in the presence of a polymeric stabilizer comprising in its molecule one component which is solvated by the organic liquid and another component of different polarity which is relatively non-solvated by the liquid and becomes associated with the polymer particles, thereby attaching to the particles a sterically stabilizing sheath of the solvated component of the stabilizer, the associated component of the stabilizer being, under the conditions in which the dispersion is made, a plastic solid or viscous liquid. Exemplified stabilizers are the products obtained by copolymerizing a condensation product of poly(12 - hydroxystearic acid) and glycidyl methacrylate with (a) methyl methacrylate and methacrylic acid, (b) methyl methacrylate, (c) methyl methacrylate and ethyl acrylate, (d) methyl methacrylate, ethyl acrylate and methacrylic acid, (e) styrene, (f) ethyl acrylate, (g) methyl methacrylate and acrylonitrile, (h) (3-ethoxyethyl methacrylate, and (i) methyl methacrylate and lauryl methacrylate; the product obtained by reacting poly(12 - hydroxystearic acid) with an epichlorhydrin - diphenylolpropane condensate; and the product obtained by reacting a lauryl methacrylate-glycidyl methacrylate copolymer with methacrylic acid and copolymerizing the reaction product with ethyl acrylate and methyl methacrylate. These stabilizers are used to disperse the following polymers in hydrocarbon or mixed hydrocarbon solvents, ethyl acetate-xylene, and butyl acetate - aliphatic hydrocarbon solvent:- polyvinyl chloride, vinyl acetate-vinyl chloride copolymer, polystyrene, polymethyl methacrylate, polyvinylidene fluoride, polychloroprene. In some cases, a dialkyl phthalate plasticizer is included in the preparation of the dispersion.