baber/WOPTO huggingface dataset:
Patent GB-678388-A (GB)
Title: Improvements in or relating to time-limiting circuits
IPC: H04M3/12
Filed: 1949-12-07
Abstract: 678,388. Automatic exchange systems. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 7, 1949 [Dec. 10, 1948], No. 31416/49. Class 40 (iv). A plurality of time-delay switching circuits of the type in which a first operation connects up a charging circuit for a condenser and a second operation a discharging circuit therefor and if the second operation does not follow the' first operation within a predetermined time interval the potential across the condenser reaches a critical value and a switching operation is initiated are controlled by a common supervisory circuit. In the normal condition of a time-delay circuit II the condenser C1 is short-circuited by contact p but consequent upon the first operation (e.g. seizure of a register in which the circuit is included) contact p changes over and C1 commences to charge. The second operation (e.g. receipt of dialling impulses by the register) restores p and C1 discharges. The time constant of the charging circuit is such that approximately 30 seconds after the first operation (provided the second operation has not taken place) the potential of point K drops below - 24 volts and rectifier gl becomes conducting. The grid voltage of tube L1 is lowered, the tube is cut off, and the normally-energized relay A relapses, thereby connecting H.T. to tube L2 whereupon relay B pulls up. Relay A also brings up the slowto-operate relay C. Relay B completes a driving circuit for the magnet SM of finder switch ZS which hunts for the time-delay circuit associated with the charged condenser. When this circuit is found the tube L2 is cut off and relay B relapses to bring up relay T in the time-delay circuit which locks up over contact q (which was closed on the first operation) and completes a discharging circuit for C1, whereupon L1 again conducts, A reoperates and C relapses. Relay T initiates the desired switching operation by means of further contacts (not shown).
Patent GB-173662-A (GB)
Title: Improvements in the apparatus for distillation of peat and the recovery of the products
IPC: C10B53/02
Filed: 1920-11-08
Abstract: 173,662. Robus, A. J. Nov. 8, 1920. Retort furnaces; charging. - In apparatus forthe distillation of peat, the raw peat is charged into a hopper F and fed by rotary spiral conveyers J through tubular retorts E maintained at a temperature of about 500‹ C. at the hot zone K by burning the non-condensible gases generated in the apparatus. The conveyers J extend only along the cooler parts of the retorts in which the raw peat, due to compression, is caused to give up its moisture as water which is drained off at the charging end. The charcoal falls to the bottom of the chamber M and is removed therefrom to adjacent cooling-chambers, in which it is quenched.
Patent GB-505776-A (GB)
Title: Improvements in or relating to stems for electric discharge devices
IPC: H01J5/44
Filed: 1937-11-16
Abstract: 505,776. Sealing leading- in wires. STANDARD TELEPHONES & CABLES, Ltd., GOODCHILD, F. D., and BAKER, L. C. Nov. 16, 1937, No. 31491. [Class 36] [Also in Group XL] The stem of an electric discharge tube is formed of two tubes 1, 2 joined together by flanges 3, the leading in wires 6 being sealed in between the two flanges.
Patent GB-949869-A (GB)
Title: Synthetic resin compositions and a process for manufacturing the same
IPC: C08G63/676
Filed: 1961-09-01
Abstract: A curable mixture comprises (a) a linear polyester which is the reaction product of (i) a dicarboxylic acid having an olefinic double bond conjugate to one or both carboxyl groups, (ii) an aliphatic dihydric alcohol containing at least one ether group, and (iii) anthracene, the molar ratio of (iii):(i) being between 1:20 and 1:8; (b) an olefinic comonomer having a terminal =CH2 group; (c) 0.3 to 10% by weight of (a) +(b) of magnesium oxide or beryllium oxide; and (d) an organic peroxidic polymerization catalyst.  The reactants used to prepare (a) may optionally include (iv) a non-polymerizable dicarboxylic acid and (v) primary and secondary diols without ether groupings. Particular compounds exemplifying the specified reactants and ingredients are:-(a) (i) maleic, fumaric and itaconic acids; (a) (iv) phthalic, hexahydrophthalic, terephthalic, tetrachlorophthalic, hexachloroendomethylenetetrahydrophthalic, adipic and succinic acids; (a) (ii) poly-ethylene and propylene glycols, glycerin monoallyl ether, o ,o 1-dihydroxy-dibutyl ether, bis-(hydroxy-ethoxy)-butane-(1,4), 4-(hydroxyethoxy)-n-butanol, 1,1,1-trimethylolpropane-monallyl or monobenzyl ether, and pentaerythritol-diallyl or -dibenzyl ether; (a) (v) various primary and secondary alkene and cycloaliphatic diols, bis-(hydroxyethoxy)-4,41-dihydroxydiphenylpropane and hydroxyethoxy-4,41-dihydroxydiphenyl sulphone; (b) styrene, alkyl styrenes, vinyl halobenzenes, acrylate and methacrylate esters, vinyl esters, diallyl phthalate and triallyl cyanurate; (d) benzoyl, MEK, di-t-butyl and dicumyl peroxides, t-butyl and cumene hydroperoxides, 2,2-bis-(t-butylperoxy)-butane and t-butyl perbenzoate. The curable mixture may also contain inorganic fillers, e.g. chalk, talc, gypsum, heavy spar, calcium oxide, zinc oxide or carbonate, dyestuff pigments and ground shale, and a polymerization inhibitor, e.g. hydroquinone, copper resinate or cuprous chloride.  The compositions may be used to impregnate fibrous reinforcements, e.g. of asbestos, jute, sisal or glass. The impregnated fibrous sheet may be partially polymerized to the gel stage, shaped and then fully cured.
Patent GB-1351506-A (GB)
Title: Input-output device for a computer
IPC: G06F3/033
Filed: 1971-07-06
Abstract: 1351506 Lamps R M GRAVEN 6 July 1971 [26 Aug 1970] 31588/71 Heading F4R [Also in Divisions G4 and B6] A light pen 23 is used to switch on or off a matrix 35 of light emitting diodes which form a drawing board 20. Each diode is connected to photo transistors in a modular circuit 26. When the end 87 of the light pen is pressed against the drawing board, contacts 92 are closed to enable a battery 99 to illuminate lamps 88. The lamps activate one of the photo transistors in the circuit 26 engaged by the pen to switch on the associated diode. By pressing the end 87<SP>1</SP> of the pen against the drawing board another photo transistor is actuated by lamps 88<SP>1</SP> to switch off the diode. Light guides 89 and an inking cartridge 96 are positioned at the "WRITE" end 87 of the pen whilst light guides 89<SP>1</SP> and an eraser 97 are positioned at the "ERASE" end 87<SP>1</SP> of the pen. A rheostat 52 controls the brightness of the lamps 88, 88<SP>1</SP>.
Patent GB-707322-A (GB)
Title: An improved method of and means for finishing fabrics
IPC: D06C29/00
Filed: 1950-12-29
Abstract: 707,322. Drying fabrics. FRANKLIN & SON, Ltd., W., and CLARKE, L. J. Dec 24, 1951 [Dec. 29, 1950], No. 31592/50. Class 34(1) [Also in Group VIII] In a process for finishing fabric (see Group VIII), moistened fabric is dried as it is drawn by rollers 15, 16 over a stationary plate 1 of bowed convex form, heated from below. Infra-red heating elements 26 heat the fabric from above and assist in its drying out; a moisture meter is provided at 24. The temperature of plate 1 is above 212‹F but below the scorching point of the fabric. The peripheral speed of feed rollers, 2, 3 is less than "that of drawing-off rollers 15, 16 so that the fabric is stretched during drying. For simultaneously drying a number of ribbons of. fabric, bars 12 and 22 fitted with spaced pins 13 and 23 respectively are provided.
Patent GB-287217-A (GB)
Title: Improvements in and relating to anti-dazzling appliances
IPC: G02C7/16
Filed: 1926-12-14
Abstract: 287,217. Severn, J. A. Dec. 14, 1926. Eyeshields.-For the projection of the eyes against dazzle by approaching vehicle lights an eyeshade A is provided, having a semi-transparent edging B and constructed with three projections of notched, serrated or V-shape. This form reduces the amount of movement of the head necessary to avoid dazzle by interposition of the semitransparent edging. This eyeshade may be fitted to or from part of any head-dress.
Patent GB-1348424-A (GB)
Title: Continuous process for producing laminated plates
IPC: B29C44/32
Filed: 1971-07-06
Abstract: 1348424 Laminates KAO SOAP CO Ltd 6 July 1971 [6 July 1970] 31671/71 Heading B5N A laminated plate comprising a layer of polyurethane foam sandwiched between two rigid plates, e.g. slates, veneer boards and metal plates, previously cut in predetermined dimensions, is produced by a process comprising continuously feeding at a constant velocity successive rigid base-plates in close contact with each other, applying uniformly thereto, e.g. by means of a spray nozzle, a liquid polyurethane foam forming material, increasing the velocity of the base-plates, e.g. by means of acceleration rollers, and separating them apart one by one, maintaining a predetermined interval between each adjacent pair of base-plates, momentarily stopping the base-plates in that spaced condition, supplying successive rigid upper plates of identical dimensions to the base-plates so that an upper plate fits exactly into each successive stopped base-plate and allowing the material to harden. The polyurethane-foam forming liquid may be hardened during passage through a predetermined space between upper and lower rollers or belts, to form a uniform polyurethane layer, e.g. of thickness less than 10 mm.
Patent GB-505909-A (GB)
Title: Improvements in lens systems
IPC: G02B13/00
Filed: 1937-11-18
Abstract: 505,909. Lenses. VEREENIGD ACOUSTISCH BEDRIJF (ASSOCIATED ACOUSTICS) N.V. Nov. 18, 1937, No. 31755. Convention date, Nov. 18, 1936. Drawings to Specification. [Class 97 (i)] A lens system for imaging an object with reduced chromatic, aberration comprises a normal objective combined with a correcting lens located between the objective and the image, the correcting lens being either positive and chromatically under-corrected, or negative and chromatically over-corrected, or having zero power for one or more wavelengths and being either under-corrected or over-corrected chromatically, depending upon the wavelengths for which the power is zero. The distance between the correcting lens and the objective is preferably between 0À4 and 0-9 times the distance from the objective to the image, and the focal length of the correcting lens is preferably between three and ten times that of the objective. The power of the correcting lens depends upon the distance of the lens from the image and is increased as this distance is made less. In the case of a microscope objective, the correcting lens is screwed into the lower end of the microscope tube.
Patent GB-616808-A (GB)
Title: Improvements in or relating to electric high-pressure metal-vapour discharge tubes
IPC: H01J17/22
Filed: 1945-11-24
Abstract: 616,808. Metal-vapour lamps. PHILIPS LAMPS, Ltd. Nov. 24, 1945, No. 31761. Convention date, Aug. 10, 1940. [Class 39 (i)] In high-pressure discharge tubes of the type in which one electrode at least projects from the body of vaporisable metal, such as mercury, which provides the vapour pressure, the electrode has a part of reduced thermal conductivity between its end and the body of vapourproducing 'metal, and near the level of the metal. The part of reduced thermal conductivity may be provided by forming the electrode 3, with a reduced cross-section by contracting it as at 8, or by making it hollow at the region where it emerges from a pool of mercury 7. Alternatively, the electrode may be formed of an operating part of tungsten and a base part of graphite. In the construction shown, the electrode 3 is supported by a ring 4 carried by a lead 5'. The cathode is supported by a lead and ring 9, surrounded by a helically wound tungsten wire 11 in the space between the cathode and the seal. The envelope is of quartz and the seals for the leads 5 and 9 are formed by a layer 6, 10 of an intermediate glass. A filling or argon at a pressure of about 65 mm. may be provided, and in operation the tube is surrounded by a glass cylinder through which cooling water is passed. The subjectmatter is identical with that of Specification 549,727.
Patent GB-180703-A (GB)
Title: Improved means of locking nuts
IPC: F16B39/32
Filed: 1921-03-18
Abstract: 180,703. Evans, G. March 18, 1921. Locking nuts.-In a device for locking nuts of the kind in which an anchored washer 1 is provided with a groove to receive a locking-key 5, the groove is of such length that a stud or flattened dome 5<1> on the key 5 is arrested in the middle region of the face 4 of the nut and is held against further movement when the nut is slightly turned back. The key 5 may be replaced by a ball which projects slightly above the surface of the washer. The ball or member 5 may be either retained in the washer or be removable therefrom.
Patent GB-506016-A (GB)
Title: Improvement in engine starter drive members
IPC: F02N15/06
Filed: 1937-11-22
Abstract: 506,016. Turning - gear. ECLIPSE MACHINE CO. Nov. 22, 1937, No. 32115. Convention date, Nov. 24, 1936. [Class 7 (v)] [Also in Groups XXII and XXIV] In an engine starter comprising a pinion 6, Fig. 1, threaded on a sleeve 3 driven through a spring 5, an annular member such as a counterweight 8 is splined at 12 'to engage the teeth of the pinion and is interlocked with the pinion by a deformation of the metal of the counterweight to engage depressions 11 in the teeth of the pinion. As shown in Fig. 7, the counterweight is formed with a tapered flange 13 and forced axially on the pinion under heavy pressure to deform the flange into intimate engagement with the depressions 11. In modifications, (a) the pinion is formed with projections 21, Fig. 2, or 31, Fig. 3, bycutting an inclined channel 19 in the teeth, so that the projections penetrate the counterweight and force portions of it into the channel ; (b) an annular recess 49, Fig. 5, is provided in the counterweight before forcing the parts together; (c) the pinion teeth are turned down at 51, Fig. 6, to form inclined surfaces terminating in shoulders 50, and the counterweight is forced into engagement by punching recesses therein to force the adjacent metal on to the inclined surfaces; (d) a pair of internally splined rings 68, Fig. 8, are punched into a peripheral groove 69 in the teeth of the pinion.
Patent GB-302573-A (GB)
Title: Improvements in or relating to devices for supplying auxiliary air to internal combustion engines
IPC: F02D9/00
Filed: 1928-11-05
Abstract: 302,573. Jackson, L. Mellersh-, (Krogh, P. von. Nov. 5, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 18, 1928]. Induction p i p e s , extra air valves for; cylinders, cleaning. -- Extra air controlled by a valve 19 is admitted to the induction pipe 11 through diverging conduits 13 formed in a flange 5 adapted to be secured between the carburettor and induction pipe flanges. The valve 19 is contained in a housing 7 provided with an air inlet aperture 18, and is provided with apertures 20 adapted to be brought into alignment with conduits 15 communicating with a chamber 12 formed in an extension 6 of the flange. The valve is operated by a flexible member 23 connected to an arm 9 on the valve spindle 8. Water may be admitted to the cylinders for decarbonizing by inserting the end of a flexible conduit in the aperture 18, the other end of the conduit dipping into a water container. The flange 5 may form part of the carburettor or induction pipe flange.
Patent GB-485863-A (GB)
Title: Improvements in short-base rangefinders
IPC: G01C3/12
Filed: 1936-11-25
Abstract: 485,863. Range - finders ; cameras. REASON, R. E., KAPELLA, Ltd., and BAIRD TELEVISION, Ltd. Nov. 25, 1936, No. 32276. [Classes 97 (i) and 98 (i)] In a short-base range-finder, particularly intended for use also as a camera view-finder, in which coincidence of the observed images is obtained by rectilinear displacement of two mirrors C, C<1>, a compensating lens J is provided which moves with the mirrors C, C<1> in order to maintain the observed images in focus. In the arrangement shown in Fig. 2, the range-finder comprises objectives B, B<1>, end reflectors A, A<1>, an erecting lens E and an eyepiece D. The lens J may be similar to the lens E and arranged to collimate the rays, or it may be of such power that its movements with the reflectors compensate the axial displacements of the images formed by the objectives B, B<1> due to variations of object distance. Figs. 7 and 8 show the rangefinder mounted on a camera in a casing K in such a way that the base line is bisected by the axis of the objective L<1>, reflecting prisms M, M<1> being provided in the casing K on a line which intersects the objective axis. The movable reflectors C, C<1> and lens J are mounted on a sliding carriage N which can be moved by a lever O bearing against a rod P which can bo displaced by a wedge P<1> connected to the objective mount L<2>, so that focusing movement of the objective is transmitted at the appropriate ratio to the carriage.
Patent GB-994291-A (GB)
Title: Pneumatic tube dispatch carrier
IPC: B65G51/42
Filed: 1963-08-15
Abstract: 994,291. Pneumatic dispatch apparatus. STANDARD TELEPHONES & CABLES Ltd. Aug. 15, 1963 [Aug. 23, 1962], No. 32296/63. Heading B8A. In a pneumatic despatch carrier having permanent magnets 4, 9, Fig. 1, arranged for scanning purposes the adjustable magnet 9 is slidably arranged in a groove 10 along one edge of a longitudinally split half 2 of the carrier. The magnet 9, after setting is retained in position by engagement in an opposing pocket-shaped recess 11, Fig. 4, in the other half section 1 of the carrier. The magnet 9 and groove 10 may be dove-tailed or stepped so that the magnet 9 is permanently retained in the groove 10. The walls of the carrier may have a transparent portion so that the position of the magnet 9 is visible. The fixed magnet 4 may be held with a felt driving ring 3.
Patent GB-1100866-A (GB)
Title: 1:4-phenylenediamine-2:5-disulphonic acid, its manufacture and use
IPC: C09B62/006
Filed: 1965-07-28
Abstract: p-Phenylene diamine-2,5-disulphonic acid is diazotized and coupled with 1-phenyl-3-methyl-5-pyrazolone -31-sulphonic acid to give a monoazo dye which is again diazotized and coupled in a solution of sodium bicarbonate with the condensation product from equimolar amounts of cyanuric chloride, 1-amino-8-hydroxy-naphthalene-3,6 -disulphonic acid and aniline. The resulting disazo dye dyes cotton violet shades.ALSO:The invention comprises 1,4-phenylenediamine -2,5-disulphonic acid.  It is made by treating p-phenylenediamine or its sulphate or p-phenylenediamine-mono sulphonic acid with oleum, preferably at 120-160 DEG  C., diluting the sulphonation mixture with water or a mixture of ice and water and isolating the 1,4-phenylenediamine -2,5-disulphonic acid which is precipitated.
Patent GB-301071-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M13/06
Filed: 1928-11-06
Abstract: 301,071. Lioud, F. Nov, 24, 1927, [Convention date]. Spray carburettors.-In a carburettor employing two liquids, light fuel and heavy fuel or water are supplied by constant level chambers 1, 2, .ducts 3, 4 and calibrated orifices 5, 6 to wells 9, 10 connected respectively to chambers 14, 17 opening into the annular passages 13, 16 of the main nozzle, air being admitted to the light fuel passage 13 through orifices 19 in the central air admission tube 11, the inlet to which is situated above the fuel level x, y. The main nozzle opens directly into the main air admission codnuit 18 of the carburettor, the outlet of the light fuelpassage 13 being at a higher level than that of the heavy fuel passage 16. An air inlet orifice 21 is provided at the upper end of the holder 7 carrying the orifice 5 for light fuel, air passing through the conduit 20 and emulsifying the fuel passing through the orifices 22 to the well 9 when the fuel level has fallen and the orifices 22 are no longer submerged. The calibrated orifice 6 for heavy fuel may be submerged as shown in Fig. 2, or may be situated above the fuel level, in which case an air admission orifice is provided at the upper end of the chamber supplied by the orifice. The slow-running conduit, which opens into the main conduit 18 adjacent the throttle valve, is provided with calibrated orifices admitting air and fuel, the fuel being supplied directly from the light fuel float chamber 1. According to the Specification as open to inspection under Sect. 91 (3) (a), which refers to Specifications 258,866 and 276,514, the slow-running conduit is connected by a passage to the light fuel well 9, and a valve is provided adapted to put the slow-running conduit and the well 9 successively into communication with the atmosphere. This subject-matter does not appear in the Specification as accepted.
Patent GB-1479951-A (GB)
Title: Apparatus for reshaping tubular envelopes
IPC: H01J9/24
Filed: 1974-07-23
Abstract: 1479951 Apparatus for bending tubes MATSUSHITA ELECTRONICS CORP 23 July 1974 [2 Aug 1973] 32452/74 Heading ClM An apparatus for bending two rectilinear tubular elongate fluorescent tube envelopes into annular form comprises two pulley shaped mould assemblies each of which is asymmetrically divided into two parts at right angles to the axes of the moulds by planes which place the two thinner sections opposing each other in the retaining structure thereof, the distance between the two thinner sections being only sufficient for opening the mould to allow for removal of the tubes.
Patent GB-835822-A (GB)
Title: Improvements in or relating to moulds, jigs and like structures
Inventor: SMITH DOMINIC
IPC: B29C33/38
Filed: 1957-10-17
Abstract: Moulds, jigs, and like structures are made by applying to the surface of a pattern in the following sequence: (i) a synthetic resin surface coat, particularly one which may be hardened at room temperature, e.g. an unsaturated polyester or an epoxide resin; (ii) a woven or mat sheet of a fibrous material, e.g. glass fibres; and (iii) a mixture of a lightweight filler and a synthetic resin binding agent, e.g. an epoxide or polyester resin as in (i) and allowing the synthetic resin in the composite article to harden.  The surface coat usually contains a mineral filler, e.g. slate dust, and a thixotropic agent, e.g. silica aerogel.  The lightweight filler may consist of hollow particles formed from synthetic resinous materials, e.g. phenol-formaldehyde or polystyrene resin or naturallyoccurring materials which have been heat-treated to reduce their bulk density to less than 20 lb/cu. ft., e.g. perlite or vermiculite. It is customary to allow the surface coat to gel in which case a second surface coat and/or a layer of adhesive is applied before covering with the fibrous material which is preferably glass-fibre.  If greater strength is needed a further layer of fibrous material may be applied after the mixture containing the lightweight filler.ALSO:Moulds, jigs, and like structures are made by applying to the surface of a pattern in the following sequence (i) a synthetic resin surface coat, particularly one which may be hardened at room temperature, e.g. an unsaturated polyester or an epoxide resin (ii) a woven or mat sheet of a fibrous material, and (iii) a mixture of a lightweight filler and a synthetic resin binding agent, e.g. an epoxide or polyester resin as in (i) and allowing the synthetic resin in the composite article to harden.  The surface coat usually contains a mineral filler, e.g. slate dust, and a thixotropic agent, e.g. silica aerogel.  The lightweight filler may consist of hollow particles formed from synthetic resinous materials, e.g. phenol-formaldehyde or polystyrene resin or naturally-occurring materials which have been heat-treated to reduce their bulk density to less than 20 lb./cu. ft., e.g. perlite or vermiculite.  It is customary to allow the surface coat to gel in which case a second surface coat and/or a layer of adhesive is applied before covering with the fibrous material which is preferably glass-fibre.  If greater strength is needed a further layer of fibrous material may be applied after the mixture containing the lightweight filler.