baber/WOPTO huggingface dataset:
Patent GB-535983-A (GB)
Title: Improvements in treating surfaces of or containing rubber or the like
IPC: C08J7/14
Filed: 1939-12-21
Abstract: 535,983. Indiarubber &c. DUNLOP RUBBER CO., Ltd., TWISS, D. F., and JONES, F. A. Dec. 21, 1939, No. 32675. [Class 70] The production on rubber, guttapercha, balata, &c. of abrasion-resistant, dirt-repellent and paint-retentive surfaces by treatment with an aqueous solution of a halogen is modified by treating the solution so as to increase the content of hypohalogenous acid. This may be effected, for example, by heating chlorine water to 100- 212‹F. Mineral acid such as hydrochloric acid may be added to increase the hydrogen ions and therefore the proportion of undissociated hypochlorous acid. Oxidizing agents such as nitric acid, persulphates, permanganates, hypochlorites, bichromates, chlorates and perchlorates may be added. In examples, play balls are treated with chlorine water at 50‹C. alone or with acids or oxidizing agents or with bromine water heated to 65‹C. or with hypochlorous acid obtained by passing chlorine into a suspension of copper oxychloride and distilling the solution.
Patent GB-1467245-A (GB)
Title: Method of securing component to a substrate
IPC: H05K1/02
Filed: 1973-07-10
Abstract: 1467245 Releasable fastenings LUCAS INDUSTRIES Ltd 2 July 1974 [10 July 1973] 32807/73 Heading E2A An electronic component 11 is secured to a ceramic base 10 by an adhesive 12, e.g. cold cured silicone, which incorporates a looped metal or nylon thread 13 which may be pulled out to break up the adhesive layer for easy removal of the component.
Patent GB-308767-A (GB)
Title: Improved device for testing the brakes of vehicles
IPC: G01L5/28
Filed: 1928-11-09
Abstract: 308,767. Limendoll, A. E. March 31, 1928, [Convention date]. Hand and foot actuation.-A brake pedal depressor for use in holding the brake applied during testing and adjusting comprises a foot 26 and tube 25 adapted to receive a screwed rod 27, a screw 30 engaging a longitudinal slot in the rod to prevent relative turning of rod and tube. A hand nut 28<1> serves for moving the screws in and out of the tube, a slide 31 being pushed down to engage a slot and lock the tube and nut in any particular adjustment. In use, the foot 26 is placed under the pedal, and the head 28 against the driver's seat, the depressor being adjusted to depress the pedal sufficiently.
Patent GB-755859-A (GB)
Title: Improvements relating to an aerofoil, wing or the like
IPC: B64C21/06
Filed: 1953-11-26
Abstract: 755,859. Wind motors. WURZBACH, R. Nov. 26, 1953 [Nov. 28, 1952], No. 32882/53. Class 110(3) [Also in Group XXXIII] A vane 1 for a wind motor has a slot 4 adjacent the trailing edge 3 of the vane of which at least the rear part is hollow, and an auxilliary spar 5 apertured along its length arranged between a main spar 6 and the slot, and a flap 2 hinged to the vane .and provided with a slot 8 parallel to its trailing edge 7 and an apertured spar 9. Fluid may be drawn in through the slots and withdrawn from the spaces between the auxiliary spars and the main spar 6. The auxiliary spars may be constructed as in Fig. 5, in which spanwise rods 13, 14, are interconnected by stiffening panels 15, 16 suitably apertured at 17, 18.
Patent GB-405772-A (GB)
Title: Improvements relating to road setts and other road surfacing elements
IPC: E01C5/16
Filed: 1932-11-22
Abstract: 405,772. Casting iron paving elements. STANTON IRONWORKS CO., Ltd., near Nottingham, and WILSON, P. H., 21, Trevose Gardens, Sherwood, Nottinghamshire. Nov. 22, 1932, No. 33021. [Class 83 (i).] Moulds; mould materials.-Road setts, manhole covers, or other road paving elements comprise a cast iron body with a hardened tread. A mould for casting a road sett with hardened treads d, Fig. 1, comprises a metal insert g providing chilling blocks g<1> separated by ribs g<2>, and about which the sand is rammed. An insert g may be built up from a number of units, according to the size of the article to be produced. The hardening effect of the chills may be increased by coating them by painting or dipping with a hardening material, or the insert g may be dispensed with and the hardening produced entirely by such a coating distributed in a sand mould at the points corresponding to wear surfaces in the article. The coating may comprise sulphur or compounds thereof, iron sulphide being formed and the proportion of combined carbon increased. Sulphur may be applied molten by painting or dipping, or as a paint comprising three parts of sulphur to one of barium carbonate. A low silicon, high sulphur, iron may be finely powdered and applied to the mould, or a saturated solution of sodium sulphide may be painted on. Ammonium compounds such as the nitrate or carbonate may be applied in a saturated solution, the nitrogen liberated on dissociation effecting the hardening.
Patent GB-735014-A (GB)
Title: Improvements in or relating to salt compositions
Inventor: WALDO FRANK
IPC: C01D3/26
Filed: 1953-11-28
Abstract: Common salt compositions which do not agglomerate under the influence of moisture comprise common salt and finely-divided, precipitated calcium silicate or hydrated silica.  The compositions usually contain 0.5-5 per cent of the calcium p  silicate or hydrated silica, which is preferably of particle size less than 0.1 micron.  There is described the preparation of suitable calcium silicate by mixing solutions of Na2O(SiO2)2-4 and calcium chloride, and of suitable hydrated silica by adding hydrochloric acid, and then sodium hydroxide solution, to a slurry of calcium silicate obtained by the turbulent mixing of solutions of Na2O(SiO2)3.6, calcium chloride and sodium chloride.ALSO:Common salt compositions which do not agglomerate under the influence of moisture comprise common salt and finely divided, precipitated calcium silicate or hydrated silica. The compositions usually contain 0.5-5 per cent of calcium silicate or hydrated silica, which is preferably of particle size below 0.1 micron.  Preparation of suitable calcium silicate by mixing solutions of Na2O(SiO2)2-4 and calcium chloride, and of suitable hydrated silica by adding hydrochloric acid, and then sodium hydroxide solution, to a slurry of calcium silicate obtained by the turbulent mixing of solutions of Na2O(SiO2)3,6, calcium chloride and sodium chloride is described.
Patent GB-521309-A (GB)
Title: Improvements in cast iron covers and frames for gullies, manholes, hydrants and the like openings in roads or footpaths
IPC: E03F5/046
Filed: 1938-11-15
Abstract: 521,309. Gullies for kerbs. HARTLEY, A. J. Nov. 15, 1938, No. 33136. [Class 107] An open-sided kerb gully comprising a frame and a cover with the open side of the frame flush with the kerb-stone, has locking means for the cover adjacent the open side of the frame. Projections d are provided on the open end of the frame at each side and are adapted to be engaged by corresponding projections b on the lower face of the cover a, when the cover is in a position with its rear end slightly raised, so that as this end is lowered, the projections on the cover and frame interlock and lock the cover. An aperture n for a lifting key may be provided at the rear of the cover which may also be locked by a turnkey catch. A loose grating f may be held against the open side of the gully by projections g on the frame.
Patent GB-922873-A (GB)
Title: Insulator for electrical conductors
IPC: H02K3/34
Filed: 1960-09-28
Abstract: 922,873. Insulation for conductors of dynamoelectric machines. GENERAL ELECTRIC CO. Sept. 28, 1960 [Oct. 26, 1959], No. 33312/60. Drawings to Specification. Class 35. [Also in Group XXXVI] An insulated electrical conductor bar has a number of individual strands insulated by an epoxy resin composition containing a fibrous material selected from asbestos, glass, polyethylene-terephthalate and combinations of these, and which surrounds the strands and fills the spaces between them, the assembly being enclosed in a layer of epoxy resin-bonded mica flake, mica paper, or asbestos-glass sheet material, and having a further layer of organopolysiloxane material surrounding this. The strands, which may be transposed as described with reference to the Figure (not shown), are insulated with the fibre-filled epoxy resin and then collectively surrounded with a layer of resin-bonded mica or of a resin-bonded fabric of asbestos and glass. A typical mica-containing layer is formed of tape having a sandwich of glass fabric containing mica flake or mat or a combination of the two. The resin-impregnated tape is wrapped on the conductor bar, surrounded by a sacrifice tape, vacuum treated to remove volatile components and pressure cured. The silicone layer can now be applied by moulding or extrusion but as described, it is formed by the application of silicone rubber tape. Polysiloxanes specified are methyl vinyl- and alkyl aryl vinyl-types, and these may be used to form a typical unsupported tape, one silicone being used as a backer and the other as an adhesive coating. This may be applied to the conductor in five or six half-lapped layers. The insulated conductor bar may have an armour layer of glass fabric or glass-polyethylene terephthalate fabric coated with one of the above silicones, and the layer may contain conducting material such as carbon or silicon carbide to grade the insulation. The bar, wrapped in a sacrifice tape is then vulcanized, e.g. by a pressure moulding process. Instead of an unsupported silicone rubber tape, a supported tape may be used such as that obtained by impregnating a glass-polyethyleneterephthalate fabric with the silicone. The optional armour layer, which is usually cured with the underlying silicone layer as described, may have any desired rubber or resin impregnating its glass or glass-polyethyleneterephthalate fabric base, and need not necessarily include a conductive filler. Specifications 518,057 and 579,698 are referred to.
Patent GB-508181-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: B60T8/32
Filed: 1938-11-16
Abstract: 508,181. Fluid - pressure brakes for vehicles. KNORR-BREMSE AKT.-GES. Nov. 16, 1938, No. 33319. Convention date, Nov. 20, 1937. [Class 103 (i)] The braking pressure is temporarily increased when the driver's valve 1 is in the emergency position, the speed of the vehicle exceeds a predetermined value, and the brake cylinder pressure is at its normal maximum, by a valve 4 which disconnects the brake cylinder 6 from the auxiliary reservoir 8 and applies it to the supply pipe 10 or main reservoir in which a maximum pressure is constantly maintained, and restores the normal connection of the brake cylinder 6 with the auxiliary reservoir 8 when the speed falls below the predetermined value. The arrangement shown comprises a control valve 7 controlled by the pressure in the train pipe 9, and a replenishing valve 11 interconnecting the brake cylinder 6 auxiliary reservoir 8 and supply pipe 10. Air is supplied to the brake cylinder 6 through one side of a double check valve 5, the other side being normally open to atmosphere through the valve 4. The operating magnet of valve 4 is controlled by the contacts of a speed responsive switch 2, a switch 3 operated by the brake cylinder pressure, and a switch associated with the driver's valve and closed in the emergency position of the valve. When all three contacts are closed valve 4 is operated to apply the supply pressure to the double check valve 5 which disconnects the brake cylinder 6 from the auxiliary reservoir 8 and applies it to the supply pipe in which the pressure is greater. When the speed of the vehicle falls below the predetermined value, switch 2 opens its contacts, valve 4 is de-energized, and the double check valve 5 restores the normal connection of the brake cylinder with the auxiliary reservoir 8, so that the braking pressure is reduced to its normal value.
Patent GB-900404-A (GB)
Title: Process for producing formaldehyde by oxidation of methanol
Filed: 1958-10-20
Abstract: Formaldehyde is produced by the oxidation of methanol in the presence of a metal oxide catalyst, the oxidation being effected by a preheated nitrogen-oxygen mixture which is preheated by utilizing the gases containing excess oxygen coming from the reaction, the preheating and the oxidation both being carried out in apparatus, the walls of which are of metals which are rendered passive by oxygen. It is advantageous to control the temperature of the reactor by means of a thermostatic fluid circulating concurrently with the reaction gases.  The walls of the apparatus are, for example, made of steel with a high chromium content. Suitable catalysts are, for example, the oxides of copper or iron or a mixed molybdenum and iron oxide catalyst.
Patent GB-1472219-A (GB)
Title: Process for the selective removal of nitrogen oxides from waste gases containing sulphur oxides
IPC: B01D53/94
Filed: 1974-07-29
Abstract: 1472219 Reduction exhaust gas purification catalysts SUMITOMO CHEMICAL CO Ltd 29 July 1974 [1 Feb 1974] 33406/74 Heading B1E [Also in Division Cl] Catalysts comprise vanadium oxide and at least one of molybdenum oxide and tungsten oxide supported on α-Al 2 O 3  of s.a. 0.3-12 m<SP>2</SP>/g and p.v. #0.1 cm<SP>3</SP>/g, the atomic ratio of metals in the catalyst corresponding to wherein 0 # x # 8, 0 # y #5, 0.3 # (x+y) # 8 and 40 # z # 480. The support may also contain silica. In examples α-Al 2 O 3  is impregnated with an aqueous solution made by mixing a solution of ammonium metavanadate and ethanolamine or oxalic acid, a solution of amonium paramolybdate and ammonia and/or a solution of ammonium tungstate and monoethanolamine. The impregnated support is then dried and calcined.
Patent GB-643391-A (GB)
Title: Improvements in or relating to television and like receiving apparatus
Inventor: GALE ALFRED JOHN
IPC: H04N5/53
Filed: 1947-12-18
Abstract: 643,391. Television receivers. AIRMEC LABORATORIES, Ltd. Dec. 18, 1947, No. 33504. [Class 40 (iii)] [Also in Group XL (c)] In a television receiver for positivelymodulated signals a gain control voltage is developed in accordance with the minimum amplitude of the synchronizing impulses. Demodulated signals from the detector VI, Fig. 1, are applied over a D.C. coupling to an amplifier V2 from the anode circuit of which the video signal is taken ; the resistance R3 may be variable and comprise the " contrast " control. The valve V2 is also provided with a bias resistance R2 and a cathode load R4 which is direct-coupled to a synchronizing separator V3. The valve V3 is biassed by means of resistances R5, R6 so that grid current is just avoided in the absence of a signal, corresponding to level AB in Fig. 2, and its grid base is such that cut-off is reached at a level CD less than that corresponding to minimum " black " level in any worth-while signal. Separated synchronizing pulses appear in the anode circuit and are fed to the time-base circuits and also to a rectifier V4, across the load R8 of which appears a rectified positive potential inversely proportional to the signal amplitude the amplitude of the pulses intercepted by the valve V3 being greater for a weak signal a<SP>1</SP>, Fig. 2, than for a stronger one, a<SP>2</SP>. The voltage across the resistance R8 is combined with a steady negative bias and is applied to the gain-controlled valves over a filter R9, C4 ; to avoid the necessity for applying a prohibitive negative bias in the absence of a signal, the negative potential may be derived from the signal, Fig. 3 (not shown), by means of a rectifier coupled to the cathode of the valve V2 over an amplitude limiter.
Patent GB-803040-A (GB)
Title: Improvements in or relating to heat exchangers for condensing constituents from a gas mixture
IPC: F25J3/00
Filed: 1956-11-02
Abstract: 803,040. Cold separation of gas mixtures. PHILIPS GLOEILAMPENFABRIEKEN N.V. Nov. 2, 1956 [Nov. 5, 1955], No. 33522/66. Class 8(2). Separation of readily condensible constituents e.g., water vapour and carbon dioxide from a gas mixture, e.g., air is effected in a heat exchanger duet having a plurality of baffles, e.g., studs 2, Fig. 1, projecting from a common supporting plate 1 in thermal contact with a source of cold, e.g., the head 6 of a gas refrigerator 7 ; the studs 2 being arranged in concentric circles 3, 3a, 3b &c., the outer one forming the gas inlet and the inner one bounding a central outlet 8 and the mean temperature difference between adjacent circles of studs in the direction of gas flow being not greater than 20‹C. The so purified air is liquefied in a chamber 9. In a modification the incoming mixture is guided by a plurality of partitions to follow a spiral path. In a further modification the baffles comprise concentric perforated cylinders 20a, 20b, 20c, &c., Fig. 3, projecting upwardly from a support plate 19 connected by a rod 18 to the boiler 16 of a fractionating column, and the purified gas traverses the central outlet 23 to an annular space 24.
Patent GB-806180-A (GB)
Title: An improved elastic link strap, particularly for use as a watch bracelet
IPC: A44C5/08
Filed: 1956-11-05
Abstract: 806,180. Bracelets. RODI & WIENENBERGER, A. G. Nov. 5, 1956 [Oct. 11, 1956], No. 33651/56. Class 43 An elastic link strap comprises superimposed staggered hollow links connected by U shaped brackets pivoting against spring action, one arm only of a bracket being inserted in the open ends of adjacent links in both layers, each link of one layer and one staggered link of the other layer being in one piece. An elastic link strap comprises links consisting of an upper and a lower rectangular hollow casing 3, 4 containing a bent leaf spring 9 engaged by a pair of arms 14 of U shaped brackets 12 inserted in the open ends of the casings. To retain the brackets in the casings and for free pivoting movement, the end 11 of the leaf spring is bevelled or bent over and the end of the bracket arm is bent to retain the leaf spring. To produce an even side edge, the casings may have extensions 7 and/or 8 which are bent as shown in Fig. 20 to cover the brackets. The upper and lower casings may be partitioned as shown in Fig. 29 by extending one wall of the casing and bending it into the casing to form an inner wall 23. The springs in the casings have the same width as the brackets. Each link may comprise two staggered casings 3, 4 as shown in Fig. 35 and the edges may be made even with bent over extensions 7 and by bending the brackets outwarly to align with the extensions 7 as shown in Fig. 49. The lower wall and side walls of the casing may be extended so that the edges align with the outer edge of the brackets. The lower links may be narrower than the upper links. Each link may be stamped from one piece of sheet metal and bent to form two casings.
Patent GB-654391-A (GB)
Title: Process for the preparation of new artificial resins capable of exchanging cations
IPC: B01J39/18
Filed: 1947-12-22
Abstract: Cation-exchange resins are produced by condensing a polyhydric phenol, or a mixture of a polyhydric and a mono-hydric phenol, with an aldehyde, in the presence of a polyhydric alcohol. Specified polyhydric alcohols are ethyleneglycol, propylene glycol, tri-methylene glycol, glycerol, erythritol, adonitol, sorbitol, mannitol, dulcitol, terpin (or its hydrate), quercitol, mositol, and quebrachitol.  If the alcohol is liquid at the temperature of the reaction, the phenol is dissolved in it and the aldehyde added. Solid alcohols are used in solution in water, or an alcohol, e.g. a liquid polyhydric alcohol.  The exchange-capacity of the resins may be increased by regenerating first with a solution of acid or of a salt and then with a solution of alkali or by heating at 80-140 DEG C.  Examples describe reacting together (1) and (5) resorcinol, formalin, and glycol or glycerol; (2) resorcinol, formalin, glycerol, and sodium sulphite; (3) resorcinol, formalin, sodium sulphite and mannitol.  The products are ground and washed and preferably dried at 80-140 DEG  C.  The Specification as open to inspection under Sect. 91 comprises also the preparation of cation resins by reacting monohydric phenols, formaldehyde and polyhydric alcohols.  This subject-matter does not appear in the Specification as accepted.ALSO:In a process for removing cations from solution, e.g. in water softening, the solution is passed through a resin prepared by condensing a polyhydric phenol or mixture of a polyhydric phenol and a monohydric phenol with an aldehyde in the presence of a polyhydric alcohol.  The reaction mixture may also contain sodium sulphite.  The preparation of the resins is described (see Group IVa), and a list of suitable starting materials is given.  The exchange capacity of the resins may be increased by heating at 80 DEG -140 DEG C or by double regeneration of the resins after they have been used by treatment with a solution of an acid or a salt, e.g. hydrochloric acid or sodium or ammonium chloride, and then with a solution of an alkali or alkaline salt, e.g. an alkali hydroxide, ammonia, sodium carbonate or sodium phosphate.  The Specification as open to inspection under Sect. 91, comprises the treatment of solutions with a resin prepared from a monohydric phenol formaldehyde and a polyhydric phenol.  This subject matter does not appear in the Specification as accepted.
Patent GB-363477-A (GB)
Title: Improvements in and relating to apparatus for rearing poultry
IPC: A01K31/18
Filed: 1930-11-12
Abstract: 363,477. Rearing-appliances. COPE & COPE, Ltd., and COPE, W. J., 100, King's Road, Reading. Nov. 12, 1930, No. 34057. [Class 5 (ii).] In apparatus for rearing poultry, wherein an aperture A<1>, affording access to a feeding or watering tray, is adjusted by means of a shutter B, the latter is so arranged that it can be moved either into a position in which its upper edge extends above the upper border of the aperture, and its lower edge forms an adjustable false upper edge to the aperture (as in Fig. 2), or into a position in which its lower edge extends below the lower border of the aperture and its upper edge forms an adjustable false lower edge for the aperture (as in Fig. 3). The shutter B, mounted at each end on screws C by means of nuts C<1>, is adjustable by knobs C<2>. The screws C may be geared together for actuation by a single knob or the shutter may work on a centrally disposed screw, guides being provided at its ends.
Patent GB-496614-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B13/20
Filed: 1937-12-09
Abstract: 496,614. Finders for photographic cameras. LEITZ GES., E. Dec. 9, 1937, No. 34163. Convention date, Feb. 6. [Class 98 (i)] A common eye aperture is provided for the view finder and the coupled telemeter of a photographic camera, the former being a direct vision view finder and turning relatively to the fixed telemeter to correct for parallax. The focusing objective 2 rotates the reflecting element 4 of the telemeter through pivoted levers 6, 8. The view finder, for example of the type described in Specification 454,063, turns about a pivot 13 and carries a lever 11 which co-operates with a two armed lever 9 to engage the lever 6. A spring 12 maintains the levers in engagement. Any adjustment of the objective and the telemeter automatically moves the view finder to correct for parallax.
Patent GB-588550-A (GB)
Title: Improvements in or relating to pruning or like tools
IPC: A01G3/025
Filed: 1945-02-27
Abstract: 588,550. Shears. CADDY, S. C. Feb. 27, 1945, No. 34243. Divided out of 588,530. [Class 30] A pruning or like tool comprises two blades 6, 7 pivotally connected at 10 and a shank 5 formed integral with each blade, the shanks 5 being fixed in grooves 4 in U- shaped handles 1, 2, each handle terminating short of the pivot 10. The shank of the blade 7 is offset at 11 so that the handles lie in the same plane. The blades are offset in the plane of the handles, and they are held open by a spring 12. In a modification sleeves of celluloid or other material cover the handles, and the blades are shaped as the beak of a parrot.