baber/WOPTO huggingface dataset:
Patent GB-528300-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H04B3/32
Filed: 1939-05-03
Abstract: 528,300. Preventing interference. HALSEY, R. J. May 3, 1939, No. 13232. [Class 40 (iv)] High-frequency interference is eliminated from an overhead carrier line by grounding both wires through the windings of a tightly coupled transformer and suitably chosen or adjustable impedances. The connection to ground may include a common condenser which tunes the leakage inductance to the interfering frequency. The individual impedances may each consist of a resistance shunted by a condenser or a variably tapped resistance 45 and condenser 46 may be provided. Where two widely separated interference frequencies are concerned each is tackled separately by the aid of filters 43 or the impedances are designed to have the correct values at both frequencies, separate networks being provided for the respective windings.
Patent GB-778978-A (GB)
Title: Improvements in or relating to multi-channel phase modulated carrier transmission systems
Inventor: TYLER PETER
IPC: H03D3/10
Filed: 1955-05-07
Abstract: 778,978. Phase modulation; multiplex radio signalling. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. May 7, 1955, No. 13271/55. Drawings to Specification. Class 40(5) In a multi-channel phase modulation transmission system having channel filters at the transmitter and receiver for respectively combining and separating phase modulated-carriers corresponding to each channel and a discriminator of ratio detector type for each channel at the receiver, an integrating circuit follows, each discriminator both to equalize the frequency dependent response of the discriminator and to compensate for the non- linearity of the channel filters. The integrating circuit may be a series resistor and capacitor shunting the primary winding of on output transformer of the discriminator Due to the resistor higher audio frequencies are proportionally less shunted than lower frequencies and more constant output is maintained at higher frequencies.
Patent GB-129495-A (GB)
Title: Improvements relating to Liquid Fuel.
IPC: C10L1/02
Filed: 1918-08-15
Abstract: 129,495. Pearson & Son, S., Smith, J. S., and Hackford, J. E. Aug. 15, 1918. Oils for burning.-A liquid fuel is made by mixing the coal-tar pitch distillate referred to in Specification 129,393 and petroleam fuel oil with a solvent, such as creosote. A fuel of this kind may be made by mixing one volume of the distillate and two volumes of the fuel oil with one volume of creosote.
Patent GB-359876-A (GB)
Title: Improvements in and relating to polyphase thermionic generators
IPC: H03B9/10
Filed: 1931-05-06
Abstract: 359,876. Valve generating circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Afdwyeh, London.-(Assignees of McArthur, E. D. ; 1104, Van Vranken Avenue, Schenectady, New York, U.S.A.) May 6, 1931, No. 13401. Convention date, May 20, 1930. [Classes 39 (i) and 40 (w).] A thermionic polyphase oscillation generator comprises a cathode and a number of anodes, equal to the required number of phases, symmetrically disposed about the cathode, to which they are connected through a source of potential and oscillatory circuits in polyphase relation to each other, a magnetic field, exceeding a certain critical intensity being produced about and parallel to the cathode. The Figure shows a three-phase system in which the valve 1 has three anodes 2, 3, 4, forming a cylinder, each anode being connected to one of three star-connected inductances 11, 12, 13, the mid-point of which is connected to the cathode 5 through a source of potential 14. Oscillatory circuits are formed by connecting condensers 15, 16, 17 across each pair of inductances 11, 12 ; 12, 13 ; 13, 11. For very short waves the condensers may be substituted by the anode-cathode capacities and the inductances by the leads themselves. The magnetic field is produced by the winding 8 and the output is taken from three star or delta-connected inductances to circuit 19. The inductances 11, 12, 13 may be connected in delta, Fig. 2 (not shown) and may be mounted on a - cylindrical former; each phase of the oscillatory circuit may be connected to the load circuit through a coupling condenser Fig. 3 (not shown). The system may be used in short wave directive beacon systems where directional radiation is required in three or more directions. Specification 336,138, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-819364-A (GB)
Title: Improvements in or relating to timepieces
IPC: G04C3/10
Filed: 1956-05-02
Abstract: 819,364. Ratchet gearing. BULOVA WATCH CO. Inc. May 2, 1956 [May 2, 1955], No. 13468/56. Class 80 (3). [Also in Group XVIII] In a time-piece the oscillator 603, 604 which is preferably of the type disclosed in Specification 761,609, [Group XVIII], has fixed thereto a spring member 620 which frictionally drives a ratchet wheel 621 through an element 620a which may be of a synthetic material or of precious or semi-precious stone. A detent 630 prevents reverse rotation of the ratchet. In a modification, Fig. 2 (not shown), the spring member directly engages a disc member fixed to the ratchet wheel.
Patent GB-329143-A (GB)
Title: Improvements in or relating to encased cutting or other tools or appliances
IPC: B26B1/00
Filed: 1929-05-02
Abstract: 329,143. Poor, R., Levy, A., and Wiener, J., (trading as Hecht & Co., L.). May 2, 1929. Buttonhooks.-The folding casing of a knife blade, button hook, dagger or other implement. comprises two or more stirrup-like frames e, f pivoted to the stock of the blade a at h, g and swinging in planes at right angles. The frames may be locked in the open or closed position by a catch n which may be spring loaded. One or more blades may be provided and the single blade may be either parallel or inclined to the frames as in Fig. 7.
Patent GB-276094-A (GB)
Title: A new or improved device for calculating weights and quantities in the manufacture of textile fabrics
IPC: G06G1/14
Filed: 1926-05-31
Abstract: 276,094. Woodman, T. C. May 31, 1926. No Patent granted (Sealing fee not paid). Tabular appliances.- A device for computing counts, weights, &c. relating to the manufacture of woven fabrics comprises a rectangular surface ruled into small squares by horizontal and vertical lines. Co-operating with this surface are a transparent cursor F and a pivoted arm K. The scales on the base are as named in the Figure, and the cursor carries a scale f of counts and embraces the chart, its ends having grips H between one of which and the chart is a leaf spring J.
Patent GB-333176-A (GB)
Title: Improvements in handles for carrying cases, wireless sets, gramophones, and the like
Filed: 1929-05-03
Abstract: 333,176. Buchler, F. May 3, 1929. Handles.-The ends of the spring core of a handle for a carrying case, wireless set, gramophone, or other portable article are made to cooperate directly with stops provided within or formed as part of the box-like end fittings, to limit the arching movement of the handle. ln the form shown in Fig. 1 the ends of the spring strip 4 are formed into loops 6 through which are passed wire stretchers 7, Fig. 3, which prevent the loops from being entirely withdrawn from the fittings 1. The stretchers may be replaced by fixed pins bridging the fittings. In the form shown in Fig. 7, the pin 12, which may serve to secure the fitting to the article, passes through a slot 10 formed in the end of the spring and serves as a stop. Means may be provided for maintaining the handle in the arched position; Fig. 8 shows a bearing plate formed with a rib 9<a> adapted to engage the looped end of the spring 4 for this purpose. One end of the handle may be fixed to the article.
Patent GB-184851-A (GB)
Title: Improvements in and relating to valves and the like
IPC: F16K15/14
Filed: 1921-05-17
Abstract: 184,851. Potts, G. H. May 17, 1921. Dispensing liquids. - An attachment to the outlet of a beer or like engine for preventing dripping and for frothing the liquid consists of a tubular part A closed at its lower end and having a number of slots or holes a<2> in its sides, a rubber sleeve c adapted to be forced away from holes by the pressure of the liquid, and a cap or nozzle B detachably secured to the tubular part. Specifications 301/73, [Class 102, Pumps, &c.], 4175/91, [Class 144, Wheels, &c.], 12206/98, and 153,399, [Class 135, Valves &c.], are referred to.
Patent GB-605258-A (GB)
Title: Improved method for the treatment of spent dye liquors
IPC: D06P1/92
Filed: 1944-07-20
Abstract: Activated adsorbent carbon for use in a process of treating spent dye liquors (see Group I) may be one of the following types known as "Nuchar C190 A," "Nuchar No. 2," "Darco (Registered Trade Mark) 51," and "Cliffchar-R. Course".  "Darco 51" is prepared by the carbonisation of lignite by heating to 700 DEG  to 900 DEG  C., grinding to such a size that 70 to 90 per cent will pass through a 300-mesh screen, and then washing with acid and with water.  The "Nuchar" carbons are prepared by the carbonisation of the cellulose of paper mill waste liquors, "Nuchar No. 2" without washing, and "Nuchar No. 190" being washed in acid and in water.  "Cliffchar-R. Course" carbon is prepared by the carbonisation of wood, without washing.ALSO:To decolourize spent dye liquor and recover it in a condition for re-use, activated adsorbent carbon in finely-divided form is mixed with the liquor and organic and/or inorganic acid or acids are added to acidify the liquor to a pH value not in excess of 2.8.  The mixture is agitated until the dye substance is completely adsorbed by the carbon which is then separated from the liquid.  The carbon may be one of the following types known as "Nuchar C190 A," "Nuchar No. 2," "Darco (Registered Trade Mark) 51," and "Cliffchar-R. Coarse" (see Group III).  The method may be applied to a dye liquor containing one or more organic solvents selected from ethyl acetate, "Cellosolve" (Registered Trade Mark), butyl "Cellosolve," diethyl "Cellosolve," phenyl "Cellosolve," "Cellosolve" acetate, methyl "Cellosolve" acetate, carbitol acetate, diacetone alcohol, dioxane, acetonyl acetone, tetraethylene glycol dimethyl ether, ethylene chlorhydrin, glycol diformate, carbitol, and methyl ethyl or propyl alcohol.ALSO:To decolourize spent dye liquor and recover it in a condition for re-use, activated absorbent carbon in finely divided form is mixed with the liquor and organic and/or inorganic acid or acids are added to acidify the liquor to a pH value not in excess of 2.8.  The mixture is agitated until the dye substance is completely absorbed by the carbon, which is then separated from the liquid.  The carbon may be one of the following types known as "Nuchar C190A," "Nuchar No. 2," "Darco (Registered Trade Mark) 51" and "Cliffchar-R-Coarse" (see Group III).  The method may be applied to a dye liquor containing one or more organic solvents selected from ethyl acetate, Cellosolve (Registered Trade Mark), butyl "Cellosolve," diethyl "Cellosolve," phenyl "Cellosolve" acetate, methyl "Cellosolve" acetate, carbitol acetate, diacetone alcohol, dioxane, acetonyl acetone, tetraethylene glycol dimethyl ether, ethylene chlorhydrin, glycol diformate, carbitol and methyl, ethyl or propyl alcohol.
Patent GB-388004-A (GB)
Title: Improved manufacture of alloy steels
IPC: C21C7/00
Filed: 1931-05-11
Abstract: In a method of making alloy steels to obtain a low carbon content, chrome ore is charged into an electric furnace in large quantities without the use of a reception slag.
Patent GB-719827-A (GB)
Title: Improvements in or relating to mechanical vibration dampers and method of damping mechanical vibrations
IPC: F16F5/00
Filed: 1952-06-03
Abstract: 719,827. Fluid vibration dampers. HOUDAILLE-HERSHEY CORPORATION. June 3, 1952 [July 21, 1951], No. 13948/52. Class 108(3) . A vibration damper comprises a piston 28, operable to displace fluid from a chamber A to a chamber B (or vice versa), of a housing 27, via a fluid restriction 73, and a fluid inertia passageway 58, which affords a substantial elective mass of the fluid for co-operation with the elasticity of the damper structure and the elasticity of the fluid, to afford damping to vibration acting between the housing 27 and piston 28. In the construction shown, the piston 28 is stepped at 53 and operates in a correspondingly stepped cylinder 27a of the housing to maintain the sum volume of the chambers A and B constant on movement of. the piston rod 29 into and out of the cylinder 27a. The fluidinertia effect of the passageway 58 is augmented by the action of a fluid motor 62 disposed between the passageway 58 and the fluid restriction 73. The motor 62 has radial vanes 81 outwardly urged by spreader rings 82 into engagement with the eccentric internal periphery of a ring 85. The eccentricity may be varied by the action of a worm 102 manually adjustable at 105. This has the effect of varying the area of inlet and outlet ports 99 and 100 of the motor. The port 99 is connected to the restriction 73, and the port 100 is connected to the right-hand end of the passageway 58. The effective area of the restriction may be varied by rotation of a sleeve 65 under the action of a thermostatic element 67, and/or a manuallyoperable screw 70. The left-hand end of the passageway 58 is connected directly with the chamber A by the port 59. Respective non-return valves, Fig 5 (not shown), are provided between a . fluid reservoir 37 and the chambers A and B. Bleeding of air from the chambers A and B, and an annular space C betwen the stepped piston and cylinder portions, is provided by ports 40, a port 49, and annular grooves 45, 48 in the piston. The ports 40 are formed with flow restrictions, Fig 5 (not shown). The grooves 45, 48 are connected by ports 47, 43 and 44. A longitudinal groove (which may be no more than a scratch), connects the ports 40, 44 and 49, In a simpler embodiment of the invention, Fig. 2 (not shown), the motor 62 is dispensed with, and the passageway 58 is formed in the piston 28 directly between the chambers A and B. The passage 58 and piston, are made long enough to provide the desired degree of fluid inertia. In operation, the damper functions in the manner of a pure damping force in parallel with a second force. The second force has the property of a spring force for vibrations above a critical frequency, and an inertia force for vibrations below a critical frequency. The effective damping action rises to a peak at the critical frequency. Formulae are stated for these respective forces, and curves of operation are shown.
Patent GB-1497656-A (GB)
Title: Process for coating films
IPC: C08J7/052
Filed: 1974-03-29
Abstract: 1497656 Coated polyester films IMPERIAL CHEMICAL INDUSTRIES Ltd 10 March 1975 [29 March 1974 (3)] 13991/74 13993/74 and 5561/75 Divided out of 1497657 Heading B2E A coated film may be prepared by coating a substrate layer applied to a synthetic linear polyester film, e.g. biaxially oriented and heat set polyethylene terephthalate, with an aqueous polymeric latex or solution. The substrate layer comprises a copolymer of acrylic or methacrylic acid or an ester of acrylic acid or methacrylic acid or a copolyester and the aqueous latex or solution comprises A (i) one or more polymers or copolymers of one or more of acrylic acid, methacrylic acid, or esters of these; or (ii) an unhydrolysed or partially hydrolysed polymer or copolymer of vinyl acetate or (iii) one or more vinylidene chloride copolymers and B one or more resinous components capable of intramolecular cross linking, e.g. melamine formaldehyde condensates. The substrate may comprise a copolymer of ethyl acrylate, methyl methacrylate and methacrylamide or a copolyester of ethylene terephthalate, ethylene isophthalate and/or ethylene hexahydroterephthalate. Suitable acrylic and methacrylic esters for the coating latex or solution include methyl, ethyl, propyl, isopropyl, butyl, hexyl, heptyl, n-octyl, 2-ethylhexyl and glycidyl.  If the coating latex or solution is a vinyl acetate copolymer, the comonomer may be a diethyl maleate, 2-ethylhexyl acrylate, ethylene or vinyl chloride.  Any of the monomers used in the coating latex or solution may include frictional groups e.g. hydroxyl, amide, amine, nitrile, carboxyl, epoxy or trihydroxysilyl. Such coated films may be used as drafting or drawing office films.
Patent GB-593163-A (GB)
Title: Improvements in or relating to the manufacture of gelatine blasting explosives
IPC: C06B25/30
Filed: 1945-06-04
Abstract: 593,163. Gelatine blasting explosives. REYNOLDS, R. J. W., FORDHAM, S., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 4, 1945, No. 14000. [Class 9 (ii)] A gelatine blasting explosive has included therein a nitrocellulose cross-linking agent defined as dimethylol urea or a dialkyl ether thereof ; a methylol-melamine or an ether thereof; an organic diisocyanate; an N- methylol- or N-alkoxymethyl-polyamide; an N : N<1>-di-methylol derivative of a dicarboxylic acid ; or an N : N<1>-bis-(alkoxy-methyl) derivative of a diamide of a carboxylic acid. Examples of suitable nitrocellulose cross-linking agents include the hexamethyl ether of hexamethylol-melamine; the dibutyl ether of dimethylol urea ; hexa-methylene diisocyanate, and di-methylol adipamide. The amount of the cross-linking agent employed may be from 0.05 to 0.5 per cent. Examples describe mixtures of (1) nitrated 80 : 20 mixture of glycerine and ethylene glycol, nitrocellulose, dibutylether of dimethylol urea and chalk, and (2) nitroglycerine, nitrocellulose, hexa-methyl ether of hexa-methylol melamine and beta-naphthyl methyl ether. Specification 567,940 is referred to.
Patent GB-528648-A (GB)
Title: Improvements in or relating to ball and roller bearings
IPC: F16C33/78
Filed: 1939-05-11
Abstract: 528,648. Ball and roller bearings. HOFFMANN MANUFACTURING CO., Ltd. (Hoffmann Bearings Corporation, N.). May 11, 1939, No. 14055. [Class 12 (i)] In a ball or roller bearing a resilient enveloping member 15 extends over to enclose the outer race ring 11 and presses against the inner race ring 10. As shown, the member 15 bears on the outer peripheral surface of the ring 10, and grooves 21, 22 for oil are formed therein. The periphery of the member 15 may be conical or grooved or covered by a metallic member.
Patent GB-438260-A (GB)
Title: Improvements in and relating to windows for vehicles
IPC: E05F11/38
Filed: 1935-05-15
Abstract: 438,260. Vehicle windows. ROETHEL, J. H., 269, Marlborough Avenue, Detroit, Michigan, U.S.A. May 15, 1935, No. 14246. Convention date, June 20, 1934. [Class 20 (iii)] A rear-side window for a vehicle comprises a glass panel 11 having an inclined rear edge 11<b> to which is secured a member 20 whereby horizontal sliding movement may be imparted to the panel in its own plane. The member 20 has a guide slot 21 for a pin 23<a> mounted on an actuating arm 24 which swings about a fixed pivot 27 on a plate 28 screwed to the vehicle body. The arm 24 is coupled by a link 35 to a crank pin 34 on a spur wheel 30 journalled in the plate 28, the spur wheel being driven by a hand crank 33. When the window is in closed position, the line joining the centres 34, 36 is arranged to lie above the centre of the spur wheel 30 so that the window cannot be opened by pressure applied directly thereto.
Patent GB-1191671-A (GB)
Title: Optical Apparatus
Inventor: CLAPHAM PETER BRIAN
IPC: G01N21/53
Filed: 1966-03-31
Abstract: 1,191,671. Turbidometers: photo-electric apparatus. NATIONAL RESEARCH DEVELOPMENT CORP. June 23, 1967 [March 31, 1966], No.14298/66. Headings G1A and G1X. Apparatus for detecting particulate material in a fluid comprises a source of light 10 and a parabolic reflector 11 for producing a parallel beam of light 16, a flat transparent wedge member 22 of transparent material arranged with its incident face 23 at such an angle to the parallel beam of light that the beam 16 will be totally internally reflected in the wedge as indicated by the beam 20, light scattered from particulate material 21, however, passing through the member 22 to fall on a detector to provide an indication of the presence of such material in the light path between the source 10 and member 22. The detector 12 is disposed along the face 24 of the wedge member 22 and is preferably a photo-sensitive plate forming part of a photo-electric device, though it may be a plain sheet of glass through which scattered light may be viewed. The member 22 may be of glass or "Perspex" (Registered Trade Mark) and the apparatus is described as adapted for use as a detector for smoke in the atmosphere.
Patent GB-1004892-A (GB)
Title: Improvements in or relating to automatic dish washing machines
IPC: A47L15/50
Filed: 1964-04-07
Abstract: 1,004,892. Dishwashing machines. R. ETTLINGER. April 7, 1964 [June 14, 1963], No. 14302/64. Heading A4F. A dishholder adapted to be transported through a dishwashing machine by drive mechanism includes a tray portion 24, Fig. 5, having peripheral walls 26, a rack portion 10, Fig. 1, having means for supporting dishes and glassware, and means at its periphery for mounting it on the tray 24, e.g. pins 22 extending downwardly from the upper rim 12 of the rack 10 and adapted to be received in openings 36 in the walls 26 of the tray 24 and bent over. Brace members 32 connecting struts 28 of the network base of the tray 24 define openings 34 adapted to receive a pawl or advancing lever used in some types of dishwashing machines. In a modified construction the rack has pockets for holding glassware, and in a further construction the rack and tray portions are riveted together.
Patent GB-119110-A (GB)
Title: Improvements in the Magnetic Separation of Metals or Magnetic Bodies from Oil Flowing through Oil Circuits.
IPC: B03C1/025
Filed: 1917-10-04
Abstract: 119,110. Brown & Sons, D., and Child, W. H. Oct. 4, 1917. Recovering waste lubricants.- Small particles of iron &c. are separated from waste lubricant by magnets g, and the lubricant is further purified by passing through a strainer with two coaxial walls d<1>, d<2>.
Patent GB-887674-A (GB)
Title: Cork-surfaced fiber-resin trays and method of making same
IPC: B32B27/00
Filed: 1959-04-27
Abstract: 887,674. Laminates. GENERAL TIRE & RUBBER CO. April 27, 1959 [April 28, 1958], No. 14360/59. Drawings to Specification. Class 140. [Also in Group XIV] A laminated article, e.g. a tray, comprises a base formed of a thermosetting resin and a fibrous material and a layer of cork composition thinner than the base bonded to it by a layer of an acrylonitrile-styrene copolymer impervious to the resin of the base. All or part of the styrene in the copolymer may be a substituted styrene chosen from alpha-methoxystyrene, dimethylstyrene, 3,4-dichlorostyrene and 3,4- dichloro-alpha-methylstyrene; all or part of the acrylonitrile may be a substituted acrylonitrile chosen from methacrylonitrile, ethacrylonitrile and chloracrylonitrile. The base may comprise a plurality of sheets of paper, cotton fabric, asbestos or glass fibre fabric impregnated with resin or fibre-resin preforms prepared by suction moulding from a slurry of pulp fibres and resin. The thermo-setting resin may be phenol-formaldehyde, phenol-furfural, melamine-formaldehyde, urea-formaldehyde, resorcinol-formaldehyde or cross-linked polyester. The face sheets of the base may be of rag paper and may have a higher resin content than the intermediate sheets which may be of Kraft paper. The cork composition may comprise a sheet of cork particles bound together with a binder. e.g. casein, blood, albumen, animal glue, soyabean flour, rosin or starch and a filler, if desired. The acrylonitrile-styrene copolymer may be applied to the cork composition in solution in e.g. methyl ethyl ketone, cyclohexanol, benzyl alcohol, methyl formate, glycol diacetate, dioxane, trichlorethylene, acetone, methyl isobutyl ketone, mesityl oxide, cyclohexanone, furans or tetrahydrofuran. The article may be moulded as well as laminated in an hydraulic press. A cork layer may also be applied to the other side, e.g. under the four corners of the base of a tray, by the method of the invention. The base may be larger in area than the cork layer, to allow for the formation of sidewalls of the tray without a covering of cork.