baber/WOPTO huggingface dataset:
Patent GB-762668-A (GB)
Title: Improvements relating to electrical measuring instruments
Inventor: STEINBRENNER HANS
IPC: G01L3/10
Filed: 1953-08-18
Abstract: 762,668. Electric torque-measuring systems. DAIMLER-BENZ AKT.-GES. Aug. 18, 1953, No. 22753/53. Class 40 (1). Apparatus for measuring the torque transmitted by a shaft by noting the change in inductance of a coil fixed to one part of the shaft having a movable core attached to another part of the shaft, is characterized in that the coil and its core are curved to follow the angular twist more accurately. The coil and its core may alternatively be the two electrodes of a variable condenser.. The coil (or condenser) preferably comprises two separate parts forming a differential inductance (or capacitor) located in adjacent arms of a measuring bridge. In one embodiment (Figs. 11, 12) a shaft 10 has a central bore 11 carrying a rod 12 rigidly clamped to the shaft at one end 13 and free to rotate relative to the shaft in a bearing 15 at the other end, which end also carries a curved core 17, 17<SP>1</SP> movable in correspondingly curved coils 18, 18<SP>1</SP> rigidly secured to the shaft 10. In another embodiment (Fig. 13) the torque transmitted by a torsion.bar 22 connecting two shafts 20a, 20b is determined by the relative movement of two-part curved coils 24 attached to the free end of a sleeve 23 rigidly attached to the right-hand end of the torsion bar and a correspondingly curved two-part core 26 rigidly attached to the other end of the bar 22 by a clamp 25. In each embodiment connections are made to the various coils by slip rings 40, 41, 42, and a further slip ring 43 may be added to obtain an impulse per revolution for a revolution counter. Provision may be made for raising the contact brushes from the slip rings when not required, to avoid unnecessary wear.
Patent GB-244840-A (GB)
Title: Improvements in or connected with tea-chests and other boxes of wood, veneer or multiply-wood or other material
IPC: B65D5/22
Filed: 1924-09-26
Abstract: 244,840. Jensen, C. A., (Assam Railways & Trading Co., Ltd.). Sept. 26, 1924. Straps and bands.-The panels constituting the walls of a tea chest &c. are secured together by nailing them to flexible strips a of metal &c. provided with a number of isolated internal projections c arranged to serve as abutments for the edges of the panels. The projections c may take various shapes, and the strips may also be formed with indentations to mark the positions of the nails i and with external projections to facilitate handling the box.
Patent GB-1530824-A (GB)
Title: Method of treating cast-iron melts
IPC: C21C1/00
Filed: 1976-06-03
Abstract: 1530824 Refining cast iron LINDE AG 3 June 1976 22893/76 Heading C7D Cast iron is treated to adjust its carbon content, remove impurities such as Ti or Al, or to raise its temperature, by blowing in oxidizing gas, particularly oxygen, at such a rate that no smoke is generated above the bath surface. The gas may be injected by an immersed lance or through the porous base of the holding vessel.
Patent GB-250167-A (GB)
Title: Improved manufacture of rubberized material and compositions for same
IPC: C08L7/02
Filed: 1925-09-14
Abstract: 250,167. General Rubber Co., (Assignees of Teague, M. C.).. April 1, 1925, [Convention date]. Emulsions, making.-Dispersions of rubber are applied to water-repellent materials in the presence of a " polar compound " or wetting agent. Polar compounds are those in which sections of the molecule have different affinities &c. for different substances, for example, substances the molecule of which comprises a hydrocarbon miscible with oils, fats, waxes, &c., and an active group or groups which have a strong attraction for water. Specified polar compounds include sulphonated castor, cotton seed, olive, and arachis oils, ortho toluidine, sodium sulphanilite, sodium salicylate, thiourea, ammonium linolenate, saponin, sodium naphthalene or dioxynaphthalene sulphonate, potassium oleate. An emulsion &c. of the polar compound may be mixed with the latex &c., and the mixture applied to the material. 5 parts of polar compound to 100 parts of rubber is a suitable proportion. By the addition of polar compounds, the speed of penetration of latex into fibres, yarns, fabrics, paper, &c. can be increased and controlled, while with cement, stone, wood, &c. improved adhesion of the rubber is obtained. Fillers, vulcanizing agents, accelerators, &c. may be added to the dispersion. Examples of proportions are given in the Specification.
Patent GB-1034760-A (GB)
Title: Improvements in lawn mowers
Inventor: LENNART ERNST STURE
IPC: A01D34/68
Filed: 1965-05-29
Abstract: 1,034,760. Air-cushion vehicles. FLYMO, S.A. May 29, 1965, No. 22934/65. Heading B7K. [Also in Division A1] A rotary-scythe mower supported on an aircushion comprises a casing 1 having a groundengaging flange 5 and an air-impeller 11, 12 mounted on the vertical shaft 6 of the motor 2 which shaft also carries the rotary-scythe blade 14. Air enters the casing downwardly through an opening 4 adjacent to which is the intake 20 for the carburetter 17 of the motor. The impeller comprises vanes 12 upstanding from a disc 11.
Patent GB-1160014-A (GB)
Title: Paper Laminates
Inventor: JNR JOHN GRADE
Filed: 1967-05-17
Abstract: 1,160,014. Impregnated paper laminate. FITCHBURG PAPER CO. 17 May, 1967 [18 May, 1966], No. 22979/67. Heading B5N. [Also in Division D2] In a paper laminate comprising a decorative print sheet and a transparent overlay sheet laminated together with e.g. a melamineformaldehyde resin, one or both sheets contain at least 10% by weight of mercerized alphacellulose fibres. The print sheet may include between 10% and 80% of mercerized alphacellulose fibres, preferably between 20% and 55%, and actually 35%. The overlay sheet may include between 10% and 100%, preferably between 50% and 85%, and actually 70% of mercerized alpha-cellulose fibres.
Patent GB-844932-A (GB)
Title: Improvements in or relating to metal strip tinplate
Inventor: GAZARD JOSEPH FRANK SHIRLEY
IPC: C25D5/50
Filed: 1956-07-25
Abstract: 844,932. Electrolytically coating metals. BRITISH IRON & STEEL RESEARCH ASSOCIATION. July 10, 1957 [July 25, 1956], No. 22981/56. Class 41. Coated metal strips, e.g. tin-plate, is coated on one face with a metal which is then alloyed with the under-coat, whereby that face is of dull appearance compared with the other. The "marked" tin plate is especially useful to can makers. Preferably electrolytically tin-coated steel is used and is immersed in an electrolyte consisting of a solution of ferrous sulphate, ammonium sulphate, potassium chloride and a little citric acid, with one side of the strip facing the anode. The iron coated sheet is then passed through a flash melting zone to alloy the iron coating with the tin under-coat. The iron top coat may be replaced by copper or nickel.
Patent GB-1286425-A (GB)
Title: Improvements in or relating to motor vehicle power steering apparatus
IPC: B62D5/08
Filed: 1971-04-19
Abstract: 1286425 Power steering systems HONDA GIKEN KOGYO KK 19 April 1971 [3 March 1970] 22999/71 Heading B7H The operating fluid of a power steering apparatus is selectively supplied to and exhausted from the chambers 15, 16 of a power cylinder by means of a rotary valve having an hydraulically balanced valve disc 7. The disc 7 is integral with a steering shaft 2 and is contained in a chamber 6 of a valve body 5 fast with a shaft 3 connected to the steering rack 3a, the shafts 2 and 3 being connected by a torsion bar. Two pairs of supply and exhaust passages, 10 and 12, of the supply circuit 8, 9, and two pairs of passages 17 and 18 respectively connected to chambers 15 and 16 are symmetrically disposed in the valve body, passages 10 and 12 having enlarged ends 11 and 13. Through passages 19-22 defined in the valve disc have the same diameter as the enlarged ends and overlap therewith; four further passages 23 of smaller diameter always communicate with passages 10 and 12 and balancing pockets 24. During straight travel passages 19-22 connect passages 10 and 12 and no fluid is supplied to cylinder 14. When the steering wheel is rotated, for example to the right (Fig. 5, not shown) the valve disc rotates to connect passages 10 and 17 via passages 20 and 22 and passages 12 and 18 via passages 19 and 21.
Patent GB-265877-A (GB)
Title: Change spur gearing
IPC: F16H3/34
Filed: 1926-09-20
Abstract: 265,877. Streit, M. March 15. 1926, [Convention date]. Variable-speed gearing comprises driving and driven toothed wheels 1, 12. which are moved simultaneously in changing speed with respect to an intermediate cone of toothed wheels 3 - - 6. The driving and driven shafts 2, 11 turn in fixed bearings, and the bearings of the cone shaft. 10 slide in slots 18, 19. Parallelism of the cone's axis is maintained by a pinion 20 at each end rolling on a rack 20<1>. Between the gear steps 3 - - 6 of the cone are eccentric toothed wheels 7, 8, 9, which transfer the wheels 1, 12 from one step to another with a movement at each half revolution. The control comprises an intermediately pivoted actuating lever 14 engaging sleeves 16, 17 secured to the wheels 1, 12', respectively, and sliding with them. Fast on the shaft 10 are a pair of discs 28, 29, Figs. 5 and 6, with gaps 30 at diametrically opposite points. Arms 22, 23, 24 on the sleeve 16 and 25, 26, 27 on the sleeve 17 coact with these discs and slip through the gaps at the proper times as the lever 14 traverses the wheels 1, 12 stepwise in opposite directions.
Patent GB-189544-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/70
Filed: 1921-09-01
Abstract: 189,544. Isfort, F. Sept. 1, 1921. Clutches, friction.-Relates to means for effecting positive engagement and release of plate clutches and, as applied to a clutch of the single intermediate-member type, consists in pivoting angled levers e to a fixed clutch-member a substantially at the mean radius of its friction face and connecting a sliding plate h to the angle q of the levers by links passing through the member a and comprising ball-joints s, rods r, and spring blades g. The ball-joints are adjustable to take up wear. The ends of the levers e are connected by toggle-links t, y to an actuating-collar p. A nose z<1> on the forked link y engages a notch x in the clutch-part a to hold the clutch in engagement. Motion of the collar p for release first turns the link y about its pivot w to straighten the toggle and lift the nose z<1> out of the notch, a face z then contacting with the end of the link t to prevent excessive movement. The intermediate clutchmember b carries wooden blocks h'.
Patent GB-155642-A (GB)
Title: Improvements in wireless telegraph receivers
IPC: H03D1/16
Filed: 1919-09-22
Abstract: 155,642. Gill, E. W. B. Sept. 22, 1919. Wireless telegraphy.-In a receiving-arrangement comprising two thermionic valves, the plate A of the first valve is connected direct to the grid g of the second valve, and is otherwise entirely insulated. The potential of the grid G of the first valve is adjusted by a potentiometer P in conjunction with a small battery C, and is varied by oscillations received from the antenna E. The plate a of the second valve is in circuit with a telephone T and battery V. The combination gives a characteristic of the form shown in Fig. 2, the current in the circuit of the plate a remaining at first approximately constant as the voltage on the grid G is increased, then falling sharply, and then becoming again approximately constant. Thus from L to M the combination has a negative resistance. Curves are given showing the effects of varying the filament heating-currents and the voltage of the anode battery V. The combination can be used as a rectifier at either L or M, or as a current-limiting device, so that all signals over a certain strength give sounds of equal strength, or as a means of discriminating between different types of signals or between signals and atmospherics. Between the rectifying-points L and M, signals go to a minimum, and it is,found that the minimum adjustment differs for different types of transmitter. Thus of two signals of equal strengths it is possible to hear only the first on one adjustment and only the second on another adjustment.
Patent GB-772400-A (GB)
Title: Electromagnetic vibrator mounting
IPC: H01H50/76
Filed: 1955-08-15
Abstract: 772,400. Electromagnetic interrupters. MALLORY & CO., Inc., P. R. Aug. 15, 1955 [Sept. 1, 1954], No. 23409/55. Class 38(5)  A vibration-absorbing mounting for an interrupter comprises an elastic cup-shaped part 33 gripping the coil 13 and magnet frame 11 and an integral skirt part 34 engaging at 35 the inner surface of the container 24. The stack end of the vibrator is surrounded by an elastic mounting 30 having a diameter slightly less than the container interior.
Patent GB-1520139-A (GB)
Title: Gyroscopic apparatus
IPC: G01C19/28
Filed: 1976-06-08
Abstract: 1520139 Gyroscopes; detecting rotational movement electrically FERRANTI Ltd 8 June 1977 [8 June 1976] 23537/76 Headings G1C and G1N A free rotor gyroscope includes a gimbal 11 attached to a drive-shaft 13 by a flexure suspension 26 allowing limited rotation of the gimbal about an axis 27 normal to the shaft axis, a rotor 10 attached to the gimbal by a flexure suspension 28 allowing limited rotation of the rotor relative to the gimbal about an axis 29 normal to the shaft axis and to the axis of rotation 27 of the gimbal, and pick-off plates 16, 17 rotatable with and spaced from the gimbal 11 and responsive to rotations of the gimbal about its axis 27 to deliver output signals V O  representing the sense and magnitude of the rotational movements. The plates 16, 17 comprise conductive metal layers on ceramic plates, and form with the gimbal 11, which is  earthed, a differential capacitor. Each upper plate 16 is connected to the diametrically opposite lower plate 17, and the two plates 16 are connected together through a bootstrap capacitor CF. A D.C. voltage VR is applied via line 30 and resistors R to the connected pairs of plates, which are in turn connected via blocking capacitors CB and capacitive couplers CS, rings 19, 20 in annular grooves 21, 22 in Fig. 2, to buffer amplifiers A feeding a differencing circuit D. When the plane of the rotor 10 is inclined to the normal plane to the shaft 13, the pick-off produces an A.C. modulation of the D.C. voltage V R , which gives the output signal V O . The pick-offs 16, 17 are carried by a base-plate 12 mounted on the shaft 13 and having a cover 18 to enclose the rotor, its suspension, and the pickoffs in a low-pressure atmosphere.
Patent GB-391182-A (GB)
Title: Improvements in or relating to electric motor control systems
IPC: H02P5/68
Filed: 1931-08-21
Abstract: 391,182. Electric systems for transmitting mechanical power. GENERAL ELECTRIC CO., Ltd., Magnet House, Kings way, London, and COATES, H. J., c/o General Electric Co., Witton, Birmingham. Aug. 21, 1931, No. 23582. [Class 38 (iv).] Certain control switches in an electric ship propulsion system are normally operated by electromagnetic master control but can be operated by direct manual actuation, mechanical interlocks being provided between the two means of operation and arranged to ensure the correct sequence of manual operation. The arrangement of motors and alternators, and the master control thereof, is similar to that disclosed in Specification 352,615. The reversing contactors 12, 13 for the starboard motors 1, 2, the field contactors 76, 77 of these motors, and the field contactors 75, 78 of the starboard alternator and its booster are electromagnetically actuated by a master controller 16, which is operated, together with an oil valve 102 for controlling the speed of the starboard turbine, by a handwheel 70. These field contactors can also be operated by a hand-wheel 74 provided that the master controller 16 is in certain positions, predetermined by the configuration of the interlocking discs 117 . . 120. The reversing contactors 12, 13 can also be operated by a hand-wheel 72, provided that a lever 106 is moved to a " release " position, which movement is only possible if hand-wheel 70 is in its " off " position. Similar contactors and interlocks are provided for the port motors 3, 4. Isolators for connecting each alternator to its bus-bars are operated by hand-wheels 88, 89, Fig. 4: (not shown), that can only be moved when the corresponding lever 106 is moved to its release position. Selectors for connecting each motor to either set of bus-bars are operated by hand-wheels 84 . . 87, Fig. 4 (not shown). Each of these hand-wheels can only be moved to connect or disconnect its motor from the bus-bars associated with the alternator on the same side of the ship when the corre-, sponding lever 106 is moved to its " release " position, and can only be moved to connect or disconnect its motor from the bus-bars associated with the alternator on the other side of the ship when a clutch 108 is engaged so as to necessitate movement of both levers 106 to their " release " positions.
Patent GB-1145296-A (GB)
Title: Improvements in or relating to electronic flash apparatus for use in photography
IPC: G03B15/05
Filed: 1966-05-26
Abstract: 1,145,296. Photo-electric control of photographic flash apparatus. HONEYWELL Inc. May 26, 1966 [June 1, 1965], No.23627/66. Addition to 1,108, 615. Heading G1A. [Also in Division G2] In electronic flash apparatus described in Specifications 1, 108, 615, 1, 117, 057 and 1, 117, 058 in which a detecting circuit including an element whose conductivity varies with the integral of light incident thereon controls a trigger circuit to terminate the flash when a predetermined integral of light has been received, an incandescent lamp is provided positioned to illuminate the detector, together with means for varying the illumination. By increasing the illumination the response of the apparatus to ambient light may be reduced and vice versa. The means for varying the illumination, which may be a resistor in the lamp circuit, may be adjusted in accordance with the camera shutter speed adjustment.
Patent GB-845549-A (GB)
Title: Improvements in liquid flow rate metering devices
Inventor: SIMMONS HAROLD CUTHBERT
IPC: G01F1/40
Filed: 1956-07-31
Abstract: 845,549. Spray-producers; valves. DOWTY FUEL SYSTEMS Ltd. July 31, 1957 [July 31, 1956], No. 23630/56. Classes 69 (3) and 135. [Also in Group XXXII] A liquid flow metering device for use as a fuel injector for gas turbines has a valve member 14 slidable relative to an aperture 5, formed in one end of a body portion 1, to form a variable-area passage for liquid flow. The valve stem 15 is guided in a central bore in a member 7 which is situated adjacent the aperture 5 and has a plurality of fuel flow passages 9, and the valve is urged to a closed position by a spring 11 (see Group XXXII) bearing on the member 7 and acting on an end-plate 19 which engages a part-spherical washer attached to the end of the valve stem. A filter unit 22 having a wire gauze covering is attached to the body by means of a bayonet-type coupling 28. The valve head 14 is shaped so that the flow through the injector is directly proportional to the supply pressure and the " range " of the injector may be adjusted by altering the spring rate. The valve head shown gives a spray of conical form. In a modification, the aperture 5 is recessed into the body at the apex of an oblong pyramid shaped indentation to obtain a " flat spray.
Patent GB-821110-A (GB)
Title: Process for dyeing hydrophobic textile fibres
IPC: C09B1/40
Filed: 1956-07-31
Abstract: Hydrophobic textile fibres, e.g. polyamide, polyester, polyacrylonitrile, polyvinyl chloride and cellulose ester or ether fibres (including cellulose triacetate fibres) are dyed or printed with an a -hydroxy-anthraquinone having a single anthraquinone nucleus which contains in at least one b -position an alkoxy group of low molecular weight or a phenoxy group.  Specified alkoxy groups are methoxy, ethoxy, propoxy, butoxy and cyclohexoxy groups.  The alkoxy or phenoxy groups may carry simple substituents such as halogen atoms or hydroxy groups.  One, two, p  three or four a -hydroxy groups may be present.  Aqueous dispersions of the dyestuff, preferably in the presence of a dispersing agent such as soap, sulphite cellulose waste liquor or the sodium salt of N-benzyl-m -heptadecyl-benzimidazole disulphonic acid, are employed.  For dyeing polyester fibres the dyebath preferably also contains a swelling agent such as benzoic or salicylic acid, o-, or p-hydroxy diphenyl, chlorobenzene, o-dichlorobenzene, trichlorobenzene, phenylmethyl-carbinol or diphenyl.  A slightly acid bath is preferably employed when dyeing under pressure.  1 - Hydroxy - 2 - methoxyanthraquinone is prepared by alkylating 1 : 2-dihydroxyanthraquinone with dimethyl-sulphate. 1-Hydroxy-2 : 7 - dimethoxy - and 1 : 5 - dihydroxy - 2 : 3 : 6 : 7 - tetramethoxy - anthraquinone can be obtained in an analogous manner. 1 - Hydroxy - 2 - butoxy - anthraquinone is obtained by reacting 1 : 2-dihydroxy-anthraquinone with p-toluene-sulphonic acid butyl ester in the presence of sodium carbonate.  1 : 4 - Dihydroxy - 2 - phenoxyanthraquinone is prepared by heating 1 : 4-dihydroxy-2-bromoanthraquinone with phenol in the presence of sodium carbonate.  1 : 4-Dihydroxy - 2 - (p - methylphenoxy) - and 1 : 4 - dihydroxy - 2 - cyclohexyloxy - anthraquinone are obtained in an analogous manner.
Patent GB-976066-A (GB)
Title: A ripper attachment for a tractor
IPC: E02F5/32
Filed: 1963-06-14
Abstract: 976,066. Scarifiers. H. & L. TOOTH CO. June 14, 1963 [June 28, 1962], No. 23787/63. Heading E1G. A tool bar 17, raised and lowered by power means 16, is pivoted to a tractor 10 through a lever 14 and carries a clevis member D which pivotally, at 45, receives a ripper A, the upper end of the ripper being connected by a link 52 to the tractor such that the lines joining the axes of the pivot pins 52, 65, 45, 35 form a parallelogram. The clevis member D is secured to the square section tool bar 17 by a pin 39 passing through lugs 36 rigid with the bar, and has a notch 44 for reception of the blade of an assisting bulldozer. The tool bar may have a plurality of lugs 36 and the link 52 a plurality of bifrucated ends for the reception of a plurality of rippers A having ripping teeth B at their lower ends.
Patent GB-1110848-A (GB)
Title: Control of growth of fungi and bacteria
IPC: A01N43/16
Filed: 1966-05-27
Abstract: A composition for controlling bacteria and fungi comprises an inert adjuvant and a compound of formula <FORM:1110848/A5-A6/1> wherein R is H, halogen or C1 to C4 alkyl.  Preferred compounds are 3, 4, 6-trichlorocoumarin, 3, 4-dichlorocoumarin and 3, 4-dichloro-6-methylcoumarin.  The process described comprises applying the coumarin compounds alone or with an adjuvant to protect materials, such as cloth, leather, paint, paper, wood, plastics and plants.