baber/WOPTO huggingface dataset:
Patent GB-1112753-A (GB)
Title: Improvements in or relating to a synchronous electric motor
IPC: H02K21/14
Filed: 1966-03-17
Abstract: 1,112,753. A.C. motors. ETABLISSEMENTS CARPANO & PONS. 17 March, 1966 [19 March, 1965], No. 11829/66. Heading H2A. A small synchronous motor includes a permanently magnetized rotor 12, and a stator comprising an energizing coil 9 surrounding the rotor, and a cage of stator poles 3, 5, 4 disposed between the rotor and the coil and projecting respectively from two flanges 1, 2 placed on either side of the coil and connected magnetically by means of a ring 7 surrounding the coil, and from the inner edge of a magnetizable ring 14 independent of the flanges and placed between one of them, 2, and the coil; one pole of flange 2 and one pole of the magnetizable ring 14 are located side-by-side between two poles of flange 1, and this inter-relation is repeated all the way around the stator cage; a short-circuiting ring 6 is disposed between the magnetizable ring 14 and the flange, 2, nearer to it; the motor is further characterized by the distance between neighbouring poles of the same polarity being greater than that between poles of opposite polarity, and the diameter of the ring 14 being less than that of the flanges 1, 2, so that the magnetic flux passing through the poles of this ring is less than that circulating in the poles of the two flanges. Preferably grooves 11 are provided in coil 9 to accommodate the poles. Preferably the rotor 12 is composed of a sintered, radially-magnetized material, and is secured by a plastics mass 13 to shaft 12, pivoted in plastics bearings 17, 18.
Patent GB-289094-A (GB)
Title: Manufacture of new dyestuffs
IPC: C09B45/16
Filed: 1928-04-23
Abstract: 289,094. Soc. of Chemical Industry in Basle. April 23, 1927, [Convention date]. Azo dyes, soluble chromium compounds of.- o-Oxyazo dyestuffs obtained by coupling, under alkaline conditions, diazotized 5-nitro-2-aminophenol with an N-phenyl-2 : 5 : 7-aminonaphthol sulphonic acid or a derivative thereof substituted in the phenyl nucleus are converted into soluble chromium compounds by treatment with agents yielding chromium. The products, which have good affinity especially for cotton, yield fast blue dyeings from a neutral or slightly alkaline bath. In an example the dyestuff 5-nitro-2-aminophenol # (alkaline) phenyl-2 : 5: 7-acid is boiled under reflux with a solution of chromium fluoride. Specifications 26460/12 and 271,897 are referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the production of the chromium compounds of the dyestuffs obtained by coupling, under alkaline conditions, diazotized 5-nitro-2-aminophenol with X-alkyl-, N-aralkyl-, N-alkylene-, or N-arylene-2 : 5 : 7- acids. This subject-matter does not appear in the Specification as accepted.
Patent GB-884036-A (GB)
Title: Galvanic copper baths
IPC: C25D3/38
Filed: 1958-04-15
Abstract: 884,036. Copper-plating baths. DEHYDAG DEUTSCHE HYDRURWERKE G.m.b.H. April 15, 1958 [April 16, 1957], No. 11888/58. Class 41. To a copper-plating bath is added (1) a levelling agent consisting of a thiourea derivative preferably having one or more alkyl or aryl groups, together with (2) a lustring agent containing one or more C atoms linked exclusively to 3 hetero atoms of which one may be -S-R-SO 3 H, or -N-R-SO 3 H, where R is an aliphatic radical, and the other is a sulphur atom. The sulphonic group may be replaced by another group promoting water solubility. Such lustring agents are described in Specifications 762,257, 817,133, 823,152 and 847,841. Examples are: N : N-dimethyldithio carbamic acid-n-propyl ester-#-sulphonic acid and dithio carbamic acid-S-methyl-ester N - ethyl - N - butyl - # - sulphonic acid. The thiourea derivative may contain hydroxy or ether groups, e.g. N-cycloalkyl-N<SP>1</SP>-alkyl thiourea or N - phenyl - - N<SP>1</SP> - hydroxyethyl - urea. Optional additions include amino compounds, e.g. 1 :3-propylene diamine as described in Specifications 807,574 and 884,035; halogenated tertiary amino compounds as described in Specifications 806,403 and 815,908, and wetting agents. The base metal may be pre-treated with an acid pickle as described in Specification 784,091.
Patent GB-116254-A (GB)
Title: Improvements relating to Band Conveyers.
Inventor: MASCART CHARLES
IPC: B65G37/00
Filed: 1917-08-20
Abstract: 116,254. Mascart, C. June 1, 1917, [Convention date]. Flat endless-belt conveyers; idler drums; troughing-rollers; auxiliary belts. - An elevating apparatus for use in warehouses, mine shafts, shops and in unloading ships, dredging, &c., comprises a pair of belts 1, 6 arranged in a zigzag path which grip the material between them. The belts may be supported by rollers or fixed guidesurfaces between the drums 3, 4, 5, &c., and may be troughed by inclined rollers or guide-members. The drums 3, 4, 5 may be grooved. The belt, which is uppermost at any inclined portion of the path where the inclination is sufficient for the materials to be carried forward by the lower belt only may be diverted for a short distance and passed round a driving drum, tensioning-device, &c. Specification 105,542 is referred to.
Patent GB-685717-A (GB)
Title: Improvements in or relating to prepayment vending machines
IPC: G07F5/26
Filed: 1950-05-12
Abstract: 685,717. Vending machines delivering change. WITTENBORG, E. May 12, 1950, No. 11936/50. Class 27. Delivering change; setting mechanism under control of official. The amount of change delivered when any one of a row of coin-freed drawers or flaps in a vending machine is opened may be set independently to determine the price of the article rendered accessible by that drawer or flap. As a drawer is pulled out in the machine illustrated, a rail 2 on its underside turns a bellcrank 5 about its fixed pivot 3 to swing a vertical bar 6 about a pivot at its upper end. The bar 6 engages studs 11 secured, according to the price of the article in the drawer, to one or more of several selector slides 9 disposed vertically one above the other behind the drawers. The slides operate levers 22 working coin-ejecting bottomless drawers 16 delivering coins from magazines 13. The magazines 13 are arranged in a step formation rising toward the rear of the machine. The vertical swinging bars 6 may be replaced by vertical pins provided on the levers 5 to engage the studs 11.
Patent GB-174302-A (GB)
Title: Improvements in means for securing the barrels of automatic pistols having removablebarrels
IPC: F41A25/22
Filed: 1921-04-27
Abstract: 174,302. Declaye, J. April 27, 1921. Breech actions, sliding breech-block.-Relates to automatic pistols having the barrel secured by a rotary joint, and consists in locking the joint, when the trigger is pulled, by a projection 11 on the trigger which enters a groove 12 in the barrel and thereby prevents it turning. The safety device comprises a rotary bolt 6 having a round portion 9 adapted to engage a notch 7 in the sear-operating link 8.
Patent GB-1094603-A (GB)
Title: A type drum printer
IPC: B41J9/04
Filed: 1965-03-22
Abstract: 1,094,603. Selective printing. OKI ELECTRIC INDUSTRY CO. Ltd. March 22, 1965 [March 25, 1964; Dec. 26, 1964], No. 12062/65. Heading B6F. Type-drum construction.-A type drum 1 is constructed of two cases 2, 3, one within the other, and each having radially aligned square holes for inwardly sprung type-members 9. Selective positioning of type-drum.-The drum is rotatively and axially moved to position a selected character into position to be hit by a hammer 13, Fig. 3, by gearing 20, 15 and shaft 19 and/or gearing 17, 14 and shaft 16. The shafts 19, 16, Fig. 4, are rotated by pinions engaging racks 49, 50 which moved longitudinally by angled plates 39, 40, Fig. 6 (not shown), vertically sliding in channelled recesses 51, 51<SP>1</SP> in the end of the racks. Each angled plate has two projecting pins 41, 42 and 43, 44 which engage in slots 45, 46 and 47, 48 in a further plate 35 which is vertically reciprocated by a bell crank 32 oscillated by a cam 31 clutched to a motor 30. During a rotation of the cam 31 the plate 35 descends, taking with it, in a vertical direction, the two angled plates 39, 40. When, however, one of the sloping sides of the plates engages stops 37, 38 that are selectively projected the plates move horizontally to the left or the right, as the case may be, and the racks are moved accordingly. Electrical positioning of stops.-When a signal is received or a local key closes electrical contacts, a stop in each row (or one row) is projected by two corresponding rows of electromagnets (see Fig. 5, not shown).
Patent GB-109074-A (GB)
Title: Method of Testing Filter Bodies.
IPC: G01N15/08
Filed: 1916-08-25
Abstract: 109,074. Marks, E. C. R., (Zahm Manufacturing Co.). Aug. 25, 1916. Testing filtering-elements. - Hollow filtering- bodies are tested by the application of gas pressure to the interior of the moistened bodies; the formation of gas bubbles on the exterior indicates exces. sive porosity. As shown, a tube 2 of infusorial earth is immersed in water in a glass vessel and is connected to an air or gas supply pipe 3 with a cock 4,
Patent GB-734589-A (GB)
Title: Improvements in or relating to a regulating system for alternating current generators
Filed: 1952-05-14
Abstract: 734,589. Automatic voltage/frequency control systems. AMERICAN MACHINE & FOUNDRY CO. May 14, 1952 [May 28, 1951], No. 12205/52. Class 38 (4). The invention relates to automatic voltage and frequency control for electric motoralternator sets, including compensation for surge conditions. As shown, a compound D.C. motor 12 drives a single phase alternator 30, the respective fields 15, 22, being energized from the D.C. supply through carbon-pile regulators 16, 25 such as those described in Specification 733,555. Voltage control (i). Transient control. The alternator output is fed through an autotransformer 60 to a pair of full-wave rectifiers 43, 44 providing outputs of e.g. 150 volts positive and negative with respect to ground. These outputs are applied respectively to a relatively large capacitor C1 and a relatively small capacitor C2 so that the voltage across C2 follows rapid changes, whereas that across C1 does not. The transient voltage fluctuations are transmitted through C3, R4, to the grid of one half of a double triode 50 controlling the alternator field regulator. Voltage control (ii). Steady variations. The output voltage from the rectifiers 43, 44 is applied across a potential divider comprising R2 and a diode 45 with an under-run heater supplied from a secondary 46 on the transformer 60. Changes in the heater voltage vary the internal resistance of the diode, and the resulting change in voltage is applied to the grid of the triode controlling the field regulator. Frequency control. A circuit C10, L10 resonant at a frequency a little above the alternator frequency feeds one half of a double diode 65 to a capacitor C15. The other half of the diode is supplied through a potentiometer P2 fed from the alternator and phaseshift network R12, C12. Since C10, L10 provides a phase shift of about 140 degrees leading, R12, C12 are arranged to produce a shift of about 40 degrees lagging so that the two voltages are 180 degrees out of phase and pulses of opposite polarity are applied simultaneously to C15, and there is no resultant charge at the required frequency. The voltage across capacitro C15 is applied to the other half of double triode 50 to control the motor field regulator 16. To provide prompt correction for transient changes in the D.C. supply voltage the positive bus-bar is connected to the grid of the speed control triode 50 through C18, R18.
Patent GB-735921-A (GB)
Title: Lubricating oil compositions
Filed: 1953-05-04
Abstract: A lubricating oil composition comprises a major proportion of a lubricating oil and minor proportions of (a) an oil-soluble aliphatic acid containing more than one CXXH group (where X is oxygen or sulphur) or an amide or a partial ester thereof; (b) an oil-soluble compound containing a YH group (where Y is oxygen, sulphur, selenium or tellurium) attached to the aromatic ring but containing no CYYH group, and (c) a compound containing an aromatic ring and a CYYH group but free from nitrile, nitro, nitroso and hydroxy groups. Additive (a) may be malonic, succinic, glutaric, adipic, pimelic, sebacic, azelaic, tartaric, citric, maleic and citraconic acids substituted by alkyl or alkenyl groups, examples of such acids and of amides and esters thereof being given, or alkenyl thio succinic or alkenyl thio tartaric acids.  Additive (b) may be an alkyl phenol or naphthyl or a S, Se or Te analogue thereof; they may be obtained by alkylating phenols or may be natural products such as are obtained from petroleum hydrocarbons or coal tars.  The additive may contain one or more alkyl groups and also other substituents, such as halogen atoms and alkoxy, alkylamino and nitro groups. Examples of suitable additives are given.  Additive (c) may contain one or more CYYH groups, which may be attached to the aromatic ring either directly or through a side chain; acids referred to are benzoic, phthalic, toluic and xylic acids, phenyl substituted fatty acids, and cinnamic, benzoyl propionic, phenyl laevulinic, phenyl alkyl succinic, benzyl alkyl succinic, phenyl alkyl glutaric, o-vinyl benzoic, phenyl angelic, naphthoic, naphthyl stearic, anthranilic, mercapto phenyl, tolyl, xylyl, xenyl, naphthyl or anthracyl fatty acids, ethyl mercapto phenyl acetic and alkyl mercapto benzene-4-carboxylic acids. Lubricating oils specified are natural or synthetic oils, for example mineral oils, olefin polymers, silicone fluids and organic phosphates.
Patent GB-1291404-A (GB)
Title: Detachable carton handle
Inventor: SIMMS JAMES BERRY
IPC: B65D5/46
Filed: 1971-04-30
Abstract: 1291404 Carton carrying means J B SIMMS 30 April 1971 [4 May 1970] 12429/71 Heading A4G [Also in Division B8] A detachable carton handle comprises a rectangular sleeve housing formed by rear and front U-shaped portions 26, 25 hingedly connected at one end 32 and with locking means 38-46 at the other end for embracing the carton walls, a handle 21 on the rear portion with a pyramidal retainer 15 which projects in the recess formed under the closed and sealed carbon closure flaps.
Patent GB-1042308-A (GB)
Title: Improvements in or relating to recorders
IPC: H04N1/032
Filed: 1965-03-24
Abstract: 1,042,308. Selective printing. R. G. SWEET, and R. C. CUMMING. March 24, 1965 [March 25, 1964], No. 12455/65. Heading B6F. [Also in Division H4] Alpha-numeric characters, each formed of ink dots disposed in an 8 x 6 array of elemental areas, are recorded on a semi-cylindrical surface 52, Fig. 5, by a rotating assembly 54 of eight ink jets, in which the ink for each jet issues as droplets from a pressure reservoir 56 vibrated by a magnetostrictive element 64, passes through an electrode 64 where the droplets are given or are not given a charge depending whether a recording it not or is to be made in a particular elemental area, and then passes through a constant electric field established between electrodes 70, 72, whereby charged droplets are deflected and absorbed by a porous cover for electrode 70. Signals to control the eight electrodes 60 are applied simultaneously, each electrode receiving a sequence of six signals so as to cause the build-up of the appropriate configuration for the desired character. The signals are developed by means of matrix circuits, Fig. 7 (not shown), one for each alphanumeric character, in which eight horizontal conductors extending to the electrodes 60 are connected through combinations of diodes to six vertical conductors which are energized in turn. Coincident with the rotation of assembly 54, recording surface 52 is advanced longitudinally so that successive rotations produce successive lines of characters on the surface. More than one assembly of ink jets may be provided with alternate lines of recording produced by alternate assemblies.
Patent GB-696128-A (GB)
Title: Improvements in or relating to electrical heating apparatus
IPC: A47J27/00
Filed: 1950-05-18
Abstract: 696,128. Coating- with metals. ANGLOIRANIAN OIL CO.. Ltd., and RICHES. T. W. J. Aoril 13, 1951 [May 18, 1950], No. 12459/50. Class 82(ii) [Also in Group XI] A resistance coating for electric heating is formed on a glass or ceramic surface of laboratory apparatus especially for heating liquids, by painting on the surface a suspension or solution of a metal compound, e.g. a solution of platinum chloride in an essential oil such as oil of lavender or oil of rosemary and heating it to decompose the compound and form a metal coating. Several coatings may be superposed and may form a tortuous strip substantially covering the surface to be heated, e.g. the bottom of a glass flask. The ends of the strip may rest on contact surfaces. Beakers and boiling tubes may be similarly coated. The surface may be of silica and is heated to dull redness to obtain an adherent coating. A glass flask has on its base a tubular thimble 6 formed with a re-entrant part 7 carrying a metal coating 8 with contacts 9, 10 at opposite ends on the external part of the thimble adapted to engage current supplying jaws on a spring clip.
Patent GB-611192-A (GB)
Title: Improvements in or relating to suction cleaners
IPC: A47L9/20
Filed: 1946-04-25
Abstract: 611,192. Suction cleaners. HOOVER, Ltd. April 25, 1946, No. 12460. Convention date, April 26, 1945. [Classes 8 (i) and 8 (ii)] In a suction cleaner of the kind in which dirt-laden air is drawn by a suction fan through a filter and from which dirt is shaken from the filter into a removable receptacle below it, means is provided whereby the filter is automatically vibrated during the normal operation of releasing the dirt receptacle for emptying purposes. The filter of paper or cloth 7 supported by a metal' screen 8 is resiliently secured by springs 13 and a flexible bellowslike seal 11 to a metal casing 3. A receptacle 1 is detachably secured to the casing 3 by latches 41, each of which is carried by an upwardly extending rotatable pin 42; the latches being released by clockwise movement of handles 49. The filter vibrating means comprises spring- loaded telescopic members 56, 57, the opposite ends of which bear against the inner surface of the filter and support 7, 8 and are connected to bifurcated arms 59 provided with a cam following a ratchet mounted on the corresponding latch pin 42. In order to restrict the filter vibrations to when the handle 49 is making its latch releasing movement, each cam carries at its upper side a spring-pressed pawl 67 engaging a ratchet 68 non-rotatably mounted on the pin 42.
Patent GB-847625-A (GB)
Title: Improvements in or relating to machines for treating wire ropes
Inventor: CAMPBELL ROBERT EDWARD
IPC: B21C1/12
Filed: 1957-04-17
Abstract: 847,625. Drawing. BRITISH ROPES Ltd. March 26, 1958 [April 17, 1957], No. 12513/57. Addition to 794,411. Class 83 (4). In an apparatus for drawing wire ropes &c., constant back-tension is applied to the rope at the reducing stage by an arrangement comprising a drag generator. The strands are drawn by a capstan C3 from a bobbin A around a back-tensioning capstan B3 through a die C4 and is wound on a spool D3. The capstan B3 is rotated by an electric drag generator B through a gear-box B2. Alternatively an hydraulic drag generator may be used. Breakage of a wire during the passage of the rope through the die is detected by a photo-electric cell on the exit side of the die which operates a relay to stop the machine. The broken wire is then brazed into position.
Patent GB-345133-A (GB)
Title: Improvements in and relating to slide valves
IPC: F16K3/316
Filed: 1930-04-23
Abstract: 345,133. Rectilinear-motion bearings. GEIGER, H., 3, Wiesenstrasse, Bad Soden, Taunus, Germany. April 23, 1930, No. 12524. [Class 12 (i).] A bearing for a tapered sluice valve 1 comprises a series of part spherical rollers 3 turning on pins 2 secured in bosses 107 on the valve member, and working in cylindrical bores 6 running parallel to the axis of the valve member. On one side of the valve a further series of rollers 4 are arranged to turn on axis transverse to the plane of the valve member to take its weight when it is used in an inclined position. The rollers 3 are unequally spaced and recesses 8 are provided in the guideways arranged so that when the valve is in its closed position the valve member is free to engage its seat.
Patent GB-1501426-A (GB)
Title: System for processing an optical image
IPC: G06K9/74
Filed: 1975-03-25
Abstract: 1501426 Acoustic imaging THOMSON CSF 25 March 1975 [26 March 1974] 12530/75 Heading G1G [Also in Divisions H3-5] A device for processing an optical image 1 comprises a Piezo-electric substrate 11, between the major faces of which is established an electric field of a fixed frequency α, means for applying to one of the faces pulses of carrier frequency α p  which may be fixed or may vary with time, the pulses interacting non-linearly with the electric field to produce surface waves, and means responsive to the illumination at each point of a region of the surface to produce an electrical conductivity which modulates the surface waves.- As shown, the electric field of frequency α is applied between a metal coating electrode 16 and a serpentine electrode 17. Pumping pulses of carrier frequency α p  are applied by an interdigitated network 12, and the optical image 1 is directed on to a semi-conductive and photo-conductive medium 15, separated from network 12 by a dielectric layer 18. The conductivity variations produced along medium 15 modulate the amplitude of the surface waves which are read by transducers 13, 14. The field of frequency α may alternatively be established between electrode 16 and one of the terminals 122 of network 12, or between electrode 16 and a terminal 151 connected to medium 15. In another modification, substrate 11 is Piezoelectric, semi-conductive and photo-conductive, and medium 15 is omitted. Arrangements are envisaged in which the lines of a two-dimensional image are successively applied to the device, or in which a plurality of devices are used in parallel for such purposes as image-recognition. Frequency α p  may vary linearly with time between values α p   1  and α p 2  so that a Fourier transform of the optical image is obtained. Mathematical treatments are given of alternative arrangements in which the pumping signal is applied to network 12 or to transducer 13, network 12 then being used to produce an output.
Patent GB-559257-A (GB)
Title: Improvements in or relating to means for preventing the freezing of moisture carried in suspension by air or gas
IPC: F16L53/00
Filed: 1942-09-07
Abstract: 559,257. Surface carburetters. BODWAY, J., FAGARD, F. J., and CLAYTON, DEWANDRE CO., Ltd. Sept. 7, 1942, No. 12588. [Class 7 (iii)] [Also in Group XII] The freezing of moisture present in air or gas subsequently compressed is prevented by the addition of alcohol vapour to the air or gas flowing to the compressor, the liquid alcohol being vaporized by means controlling the percentage of alcohol, so that a higher degree of concentration is obtained with a lower air flow. A wick e mounted on a rod f extends from a receptacle a into a chamber b in which is a rotatable plug valve h. Air entering at c is directed to an outlet d either directly through a port i or into contact with an exposed portion n of the wick through a port k. By rotation of the valve, the proportion of air impregnated with alcohol vapour is varied, the maximum alcohol vapour being added when this port i is closed, and the port k fully open. A passage t is provided to equalize the pressures in the air inlet and alcohol receptacle.