baber/WOPTO huggingface dataset:
Patent GB-148691-A (GB)
Title: Improvements in or relating to electric reactance coils or transformers
IPC: H01F30/08
Filed: 1919-07-25
Abstract: 148,691. Electrical Improvements, Ltd., and Beard, J. R. July 25, 1919. Transformers. - In a transformer in which the winding is formed by a cable A having an outer metallic sheath, as described in Specification 133,135, [Class 37, Electricity, Measuring &c.], the sheath is divided into sections A<2>, Fig. 2, the middle points of which are connected together and to earth to avoid high induced pressures between the ends of the sheath. The gaps between the sections are protected by insulation A<3>, lead sleeves A<4>, and binding wire A<5>, Fig..3. If the winding is immersed in water for cooling, the gaps between the sections are arranged to be above the water level. The separate cores of a multi-core cable are so connected in series, for example in the order indicated in Fig. 5, that high pressures do not exist between adjacent cores. The individual cores may then be lightly insulated, the whole being surrounded by a layer of insulation C<3> sufficient to stand the normal pressure to earth. Dummy cores D of insulating-material may separate cores between which a considerable potential difference exists. The cable may be divided into two or more parts, the cores of each part being connected in series with each other and with those of the adjacent part.
Patent GB-708129-A (GB)
Title: Improvements in and relating to the manufacture of tea
IPC: A23F3/06
Filed: 1951-08-08
Abstract: Tea leaf frozen prior to manufacture as in Specification 511,895, is thawed in an atmosphere having a humidity such that moisture does not condense on the cold leaf.  After the leaf has thawed it is warmed to a temperature not exceeding 100 DEG F for a period of 1 to 6 hours to mature.  Specifications 533,523 and 593,260 also are referred to.
Patent GB-366860-A (GB)
Title: Improvements in typographical line composing machines
IPC: B41B11/06
Filed: 1931-06-29
Abstract: 366,860. Type-bar-making machines. HART, H., 9, Kingsway, London.-(Mergenthaler Linotype Co.; 29, Ryerson Street, Brooklyn, New York, U.S.A.) June 29, 1931, No. 18724. [Class 100 (iii).] Assembling matrices.-In machines adapted for' handling matrix founts which differ as to the size and number of their characters, such as the ordinary ninety-character founts and the special seventy-two or fifty-five character founts used for head-letter or display matter, the assembler entrance or raceway is provided with fixed guide-plates, which are so arranged as to be capable of handling both kinds of founts. The number of guide-plates is reduced by about one-half, and their upper ends are so located as to accord with those grooves of the two magazines that occupy approximately the same vertical planes. A short distance below its upper end, each guide-plate B<6>, Fig. 2, is forked into two branches, which reduce the width of the channels, so as to give side support to the descending matrices. The guide-plates terminate short of the magazine at their upper ends, to ensure the bodies of the matrices, and especially those of back-milled matrices, clearing the plates, and they are continued by ribmembers B<7>, which engage the matrices by their ears only, and are low enough to be out of the path of the bodies. The rib-members are of arrow-head form, to deflect the matrices to either side. As the channels between the guide-plates at their upper ends are, in some cases, wider than the matrices, the bridgemember B<3>, Fig. 4, of the entrance is formed in a gradual curve, so as to help to maintain the matrices in equilibrium until they reach the narrower parts of the channels.
Patent GB-1354619-A (GB)
Title: Beta-fluoroethyl naphthoates
IPC: A01N37/40
Filed: 1971-06-03
Abstract: 1354619 Fluoroethyl naphthoates MONTECATINI EDISON SpA 3 June 1971 [5 June 1970] 18732/71 Heading C2C The invention comprises compounds of the general formula wherein n is 0 or 1, the radical -CO.OCH 2 CH 2 F is in position 1 or 2 when n=0, and in position 1 or 3 when n=1. They may be prepared by esterifying the appropriate naphthoic acid or chloride or anhydride thereof with beta-fluoroethanol. The compounds, and compositions containing them, may be used against plant parasites, particularly acari and insects' eggs.
Patent GB-1107027-A (GB)
Title: Improvements relating to the automatic control of trains
Inventor: OGILVY HARRY HEGGIE
IPC: B61L3/22
Filed: 1965-05-05
Abstract: 1,107,027. Automatic train control. BRITISH RAILWAYS BOARD. 4 May, 1966 [5 May, 1965], No. 18959/65. Heading B7N. In an automatic train control arrangement a pick-up coil on the train co-operates with an A.C. current carrying conductor, extending parallel to the track, which is laid in sine wave or zig-zag form whereby the current picked up is modulated at a frequency which is a function of the conductor " wavelength " and the speed of the train. Both forward and return conductors may zig-zag, Fig. 3a, or one conductor only, Figs. 3b and 3c. Where means are provided on the train for controlling its speed so that the modulation frequency remains constant a permanent speed programme can be built into the track by adjustment of the conductor "wavelength." Separate programmes may be provided for passenger or freight trains by providing two conductors which are physically separated so that one co-operates with a pick-up coil on a passenger train and the other with a differently positioned pick-up coil on a freight train, or the conductors may be superimposed and carry A.C. currents of different frequency, appropriate filters being provided on the two types of train. Where the train carries a transmitter coupled to the cable a lineside receiver tuned to the transmitter frequency can provide an indication of the train speed. A block system of control may be employed by dividing the conductors into sections separated by filter means and feeding each section from a separate oscillator. In this arrangement a train entering a section B is arranged to switch off the oscillator associated with the preceding section A, thus preventing a train entering this section, and an end of train detector is provided to switch on the oscillator when the train has left section B.
Patent GB-213824-A (GB)
Title: Mechanism for producing straight-line motion in pumps, compressors and the like
IPC: F04B9/02
Filed: 1923-07-25
Abstract: 213,824. Dorward, J. G. July 25, 1923. Crank-actuated pumps.-A rotary power head for producing a straight-line motion in pumps, compressors, &c. comprises a crankshaft 15 carrying at opposite ends the operating crank 25 and the gear pinion of a planetary gear set 30, 31, the shaft being eccentrically journaled in a cylindrical rotor B revoluble within a stationary bearing A on rollers 21, 22 arranged between flanges 17 - - 20 on the rotor. The rotor is driven by a shaft 6 through a pinion 9 and a gear-wheel 24 carried by the end 12 of the rotor. The internal gear 31 is attached to the casing A, and the ratio of the gears 31, 30 is two to one, so that for each revolution of the rotor the pump-rod makes a complete reciprocation. The casing A may be filled with lubricant which is prevented from leaking by a packing ring 23 on the rotor. The crank 25 is connected to the pump-rod &c. 28 to be reciprocated.
Patent GB-666022-A (GB)
Title: Improvements in harmonicas
Inventor: STOKKUM EVERT VAN
IPC: G10D7/12
Filed: 1949-07-20
Abstract: 666,022. Mouth organs. PANARMONIC, Ltd. July 13, 1950. [July 20, 1949] No. 19157/49. Class 88 (ii). A mouth organ comprises a body member B recessed at E to position a reed plate R, top and bottom cover plates A, C and end fixing members D recessed to accommodate the body and top and bottom plates. The plates A, C are positioned relative to the body by means of studs G which enter holes H in lugs L on the cover plate. The end fixing members may be retained in position by friction or by a plastic or other cement.
Patent GB-121787-A (GB)
Title: Improvements in or relating to Interrupters or Contact Breakers for Magneto-electric Machines.
Inventor: NORTH ROBERT BENSON
Filed: 1917-12-29
Abstract: 121,787. North, R. B., and Allen, A. M. Dec. 29, 1917. Rotary interrupters for use in ignition magnetos. The rocking lever a is mounted on a pivot f on the rotating disk h by a fibre bush c, which is formed so that it may expand and shrink without binding on the pivot. The bush has sawcuts c<1>, c<2> made in it, extending from opposite ends; or the exterior surface may be corrugated; or holes may be made in the bush passing wholly or in part therethrough; or cuts c<7>, c<8>, Fig. 8, may extend from the inner and outer surfaces ; or the bush may be in the form of a helix. The bush has projecting ends c<3> to make seats for flanges a', i by which the bush is held to the lever, screws or rivets being used. The lever is substantially triangular, with thickened parts at the points where the contact b and the cam-bowl d are carried and where the lever surrounds the bush, The intermediate thin part a<2> is cut away to allow the lever to clear the fixing screw for the disk h.
Patent GB-1123300-A (GB)
Title: Improvements in and relating to a device for the electrocution of animals, especially poultry
IPC: A22B3/08
Filed: 1967-04-26
Abstract: 1,123,300. Slaughtering appliances. G.E.B.R. STORK & COMPANIES APPARATEN-FABRIEK N.V. 26 April, 1967 [10 May, 1966], No. 19242/67. Heading A1M. An electrical device for use in slaughtering livestock comprises a conveyer track 3 by means of which livestock, particularly poultry, are brought into contact with two electrodes at least one of the electrodes comprising a jet or curtain of conductive liquid. As described a first electrode 7 comprises a bridge contact 8 positioned to contact the legs of the animal the head of the animal being simultaneously hit by jets of conductive liquid 12 12<SP>1</SP> issuing from nozzles 5, 5<SP>1</SP>. The liquid is pumped to the nozzles by pump 9 and is returned to the pump via collecting funnels 6, 6<SP>1</SP>. In a modification the liquid comprises water from a mains supply to which salts or acids may be added and a liquid-receiving gully is provided at the bottom of the housing 4. Instead of jets, a curtain of liquid may be supplied.
Patent GB-709505-A (GB)
Title: Improvements in and relating to magnetic recording and reproducing systems
IPC: G11B5/00
Filed: 1952-07-31
Abstract: 709,505. Recording-apparatus. GENERAL ELECTRIC CO. July 31, 1952 [Aug. 1, 1951], No. 19402/52. Drawings to Specification. Class 106 (4). [Also in Group XXXVIII] A magnetic recording and reproducing system employs one magnetic head of the kind used for the longitudinal magnetizing method of recording and another head of the kind used for the perpendicular magnetizing method of recording, one head being employed for recording and the other for reproducing, for the purpose'of accurately reproducing undirectional voltage pulses. With a head having a magnetic gap for carrying out longitudinal magnetisation, a single unidirectional voltage pulse produces a field in the recording medium which induces in a similar type head a voltage corresponding to the intensity of the surface flux density. If the head has high electrical resistance, the said density is a minimum at the point on the record representing the peak of the pulse. The voltage output curve is thus zero at the said point and peaks of alternate polarity appear before and after said point, so that output voltage curve is different from the input voltage. With a head having a single pole piece for carrying out perpendicular magnetization, a single unidirectional pulse produces a perpendicular field in the medium having a surface flux which is of maximum density at the peak voltage of the pulse. When reproduced by a similar single pole head however, the voltage induced therein corresponds to the differential or space derivative of the surface flux and the output voltage curve is again zero at the point representing the peak of the recorded pulse, and peaks of alternate polarity again appear before and after said point. If however the perpendicularly recorded pulse is reproduced by ahead for longitudinal recording, the voltage output corresponds to the intensity of the surface flux, and an output voltage curve is obtained which closely resembles the shape of the initial recorded voltage pulse. Similarly, a pulse which is recorded by a longitudinally magnetizing head appears, when reproduced by a perpendicularly type of head, closely resembling the original voltage pulse.
Patent GB-928164-A (GB)
Title: Etching process and improved etching bath
IPC: C23F1/42
Filed: 1960-06-02
Abstract: 928,164. Etching. DOW CHEMICAL CO. June 2, 1960 [June 12, 1959], No. 19494/60. Class 100 (2). An etching bath comprises a dilute strong acid, a water-immiscible organic fluid and a filming agent, the filming agent being a substituted halogenated diaryloxide sulphonic acid or a salt thereof, wherein the substituents on the diaryloxide radical are hydrophobic groups containing from 1 to 30 carbon atoms. The acid is present to the amount of 30-200 grams/ litre, and may be nitric acid, to which may be added small quantities of sulphuric, hydrochloric or acetic acid. The organic fluid amounts to 3-150 grams/litre, and is a hydrocarbon aromatic, aliphatic or naphthenic boiling at 90-390 C., e.g. kerosene, diethylbenzenes, turpentine, ethylbutyl ketone. The filming agent is present to the amount of 0.5-2 grams/ litre. The diaryl radical may be phenyl or naphthyl. The halogen is preferably chlorine or bromine. Alkaline earth, alkali or ammonium salts can be used. An example is sodium monochlorododecyl diphenyloxide sulphonate comprising 80% of the para isomer and 20% of the ortho isomer. Polyethylene glycol can be added as an emulsifying agent. Specifications 703,814, 709,315, 725,110, 818,744 and 912,340 are referred to.
Patent GB-1064914-A (GB)
Title: Photographic processing apparatus
IPC: G03D5/06
Filed: 1965-05-10
Abstract: 1,064,914. Photographic processing apparatus. EASTMAN KODAK CO. May 10, 1965 [May 8, 1964], No.19620/65. Addition to 1,057, 585. Heading G2A. The liquid-carrying surface of the drum of the parent Specification 1, 57, 585 is roughened, or has ribs, indentations, grooves, or patterned protuberences, or the like, so as to improve the liquid-holding properties of the surface.
Patent GB-385998-A (GB)
Title: Improvements relating to radio receiving apparatus
IPC: H03D1/10
Filed: 1931-07-08
Abstract: 385,998. Wireless receiving systems. TOMLINSON, A. V., 65, Victoria Street, London.-(Union Switch & Signal Co. ; Swissvale, Pennsylvania, U.S.A.) July 8, 1931, No. 19648. [Class 40 (v).] A wireless receiver comprises a detector 1a, 1b of the dry-surface contact type, as claimed in Specification 381,206, with sufficiently high inherent capacity to act as a storage condenser, when the applied potential is in the highresistance direction, and the rectified signal is applied to the grid of a thermionic valve 4 or other load. The detector consists of two opposite parts 1a, 1b across an input circuit 2, and each part charges the other during alternate half-waves of the signal. As shown, one end of the input transformer is connected to earth, but by connecting a centre tapping to earth the detectors provide full-wave rectification, Fig. 2 (not shown).
Patent GB-1111126-A (GB)
Title: Improvements in, or relating to, spray nozzles
Inventor: BARKER CLIFFORD LEWIS
IPC: B05B15/06
Filed: 1964-05-12
Abstract: 1,111,126. Spray-producers. WALKER CROSWELLER & CO. Ltd. 12 May, 1965 [12 May, 1964], No. 19654/64. Heading B2F. A spray head suitable for use in a shower bath comprises a top portion 2, the upper end of which is adapted to be assembled to the outlet of a pipe or tap &c., and a bottom portion 1 the neck portion 3 of which is in screw-threaded engagement with the portion 2 and the lower outlet end of which is spanned by a perforated wall. The wall is formed by the tapered head of a screw 14 and an annular grooved plate 12 which co-operates at its outer periphery with a tapered portion of the internal surface of the portion 1. The grooves 13 in the plate are of rectangular cross-section and the plate may be replaced by one having grooves of different size and spacing. The portion 2 and the upper end of the neck 3 are provided with part-spherical surfaces which provide a seating for a perforated ball 6 which allows the nozzle to be tilted. A transverse partition 10 in the head is provided with a plurality of large holes 11.
Patent GB-708353-A (GB)
Title: A hydraulic power transmission mechanism for actuating shears and like reciprocable tools
IPC: A01G3/053
Filed: 1951-08-21
Abstract: 708,353. Hedge-cutters. SMITH, L. S. April 21, 1952 [Aug. 21, 1951], No. 19688/51. Class 6 (2). [Also in Group XXIX] A hedge cutter comprises fixed and reciprocated blades 9, 35 the latter being secured to the piston of a reciprocating hydraulic motor 2 (see Group XXIX). Saw teeth 39, 38 are formed at the ends of the fixed and reciprocating blades.
Patent GB-1010879-A (GB)
Title: Improved vehicle axle suspension system
IPC: B60G21/073
Filed: 1964-05-12
Abstract: 1,010,879. Vehicle suspension. TATRA, NARODNI PODNIK. May 12, 1964 [May 15, 1963], No. 19689/64. Heading B7D. The suspension for the rear wheels of a vehicle having drive shafts 3 pivotally connected to a final drive casing 16 comprises a pair of coil springs 1, 2, each connected at its upper end to a conical spring 7 or 8 enclosed between a pair of conical cups 5, 9 or 6, 10, the cups 9 and 10 being supported by a member 15 upon the final drive casing 15 and also being inter-connected by a conduit 13 having a restricting orifice 14, the spaces 11, 12 and conduit being filled with fluid.
Patent GB-1433807-A (GB)
Title: Image converter tubes
IPC: H04N5/74
Filed: 1973-04-25
Abstract: 1433807 Controlling light SIEMENS AG 25 April 1973 [30 June 1972] 19777/73 Heading H4F [Also in Division H1] An image converter tube 5 for use in a system converting incoherent optical images into coherent optical images, such as in holography, comprises a photo-cathode 4 receiving the incoherent image and electron optics 6 directing the electrons on to a surface of an electro-optical crystalline coating 7, such as potassium dihydrogen phosphate, on a transparent, planar anode 9, the coating 7 carrying a dielectric mirror coating 8. The system includes a source of coherent light 10, 11, e.g. from a laser, a polarizer 12, a semi-transparent mirror 13 and an analyser 16 which transmits light polarized perpendicular to polarizer 12. The charge pattern on coating 7 changes the polarization of the light reflected by mirror 8 and the result is that analyser 16 produces an intensity modulated beam which can be used to form a coherent image. The incoherent image is transmitted by a fibre optics system 3 in which an image amplifier can be included.
Patent GB-941163-A (GB)
Title: Electric motor control system
IPC: H02K17/40
Filed: 1962-05-21
Abstract: 941,163. Control of A.C. motors. F. SHIBATA. May 21, 1962 [May 20, 1961], No. 19814/62. Heading H2J. A number of induction motors 1, 2, 3 have their rotor windings connected to D.C. bus-bars 11 through variable transformers 4, 5, 6 and rectifiers 7, 8, 9. A D.C. motor 13 is connected to the bus-bars 11 and drives A.C. generator 12 returning power to source 10. The voltage across bus-bars 11 is kept constant by voltage regulator 14 connected to the shunt field winding of motor 13. In another arrangement, the induction motor 1 and a separate D.C. motor are connected to the D.C. bus-bars, and the machine 13 may act as a D.C. generator for this motor, Fig. 2 (not shown). The motor 13 may be mechanically coupled with another motor with which it is connected in series or parallel. These motors may have series field windings in opposition to the shunt field windings for voltage control of the bus-bars 11, Fig. 3 (not shown). The transformers may have tappings associated with external contactors, or they may be of the sliding contact type. A variable ratio transformer such as an induction regulator may be associated with a booster transformer. The motor generator set may be replaced by a mercury arc inverter, and the rectifiers in the rotor circuits may be of the grid-controlled type, a rotary phase-shifter being used for grid control, Figs. 8, 9 (not shown). A plurality of induction motors may have a common transformer and a common rectifier in their rotor circuits. A number of induction motors may be controlled in common by regulating the inverter voltage, individual control being provided by adjustment of the transformers in the rotor circuits.
Patent GB-777475-A (GB)
Title: Improvements in or relating to the production of filaments and the like from melts of cellulose esters
IPC: D02J1/22
Filed: 1954-07-06
Abstract: Filaments are produced from melts of cellulose esters by extruding the melt vertically downwards to form a molten filament, reducing the cross-sectional area of the molten filament to a desired fineness, with a corresponding elongation of the filament, by passing the filament through a heating zone maintained at or above the melting point of the filament material, the heating zone being situated in juxtaposition to the spinneret, thereafter solidifying the filament by passing it through a cooling zone maintained at a temperature below the solidification point of the filament material, and collecting the filament in a solidified form at such a rate as to prevent any appreciable stretching or tension of the filament during extrusion.  The heating zone is elongated in the direction of travel of the filament, and the filament leaving the heating zone is cooled by a gaseous medium, such as air, and is quickly solidified.  The drawoff roller or winding wheel is located a distance from the heating zone short enough to minimize the static weight of the filament but long enough to give a sufficient length of path of travel through the cooling zone to allow the filament to solidify to a sufficient degree to prevent deformation of the filament on the winding mechanism.  The heating zone may be formed by an elongation of the melt chamber beyond the jet.  In an example a cellulose ester melt is extruded into air from a jet having a hole diameter of 0.2 mm., the jet being screwed into a recessed portion of the melt tube in such a way that the heating jacket extends about 3 cm. beyond the bottom of the jet and the temperature in the heating jacket zone being maintained at 236 DEG  C.  The linear velocity of the filament emerging from the heating jacket is 12 cm/sec. and the filament is wound at this velocity.  The filament passes through a cooling zone located between the heating zone and the wind-up station.  The filaments may subsequently be stretched or saponified.  The melt may contain plasticizers.
Patent GB-1388282-A (GB)
Title: Silver halide photographic element containing a quaternary  compound
IPC: G03C1/34
Filed: 1972-04-28
Abstract: 1388282 Preparing quaternary phosphonium salts KONISHIROKU PHOTO INDUSTRY CO Ltd and SANKYO CO Ltd 28 April 1972 [30 April 1971] 19900/72 Heading C2P [Also in Division G2] p - Nitrophenyl - di - p - tolyl - phenylphosphonium iodide is prepared by first forming a pnitroaniline diazonium salt solution, adding thereto an aqueous solution of sodium acetate and then a solution of di-p-tolylphenyl phosphine in ethyl acetate, reacting the mixed solutions at 25‹ C. for 10 hours, separating the aqueous layer and then adding thereto excess hydriodic acid and extracting the product with chloroform. p-Nitro benzyl triphenyl phosphonium bromide is obtained by refluxing a mixture of triphenyl phosphine and p-nitrobenzyl bromide in xylene. The products are useful as anti-foggants in light-sensitive silver halide photographic elements (see Division G2).