baber/WOPTO huggingface dataset:
Patent GB-1129967-A (GB)
Title: Improvements in or relating to direct viewing storage cathode ray tube circuit arrangements
Inventor: ADAM ARTHUR MYLNE
IPC: G11C11/23
Filed: 1965-08-03
Abstract: 1,129,967. Cathode-ray storage tubes. MARCONI CO. Ltd. 18 March, 1966 [3 Aug., 1965], No. 33235/65. Heading H1D. In a continuously operated direct viewing storage tube, e.g. for surveillance radar, in which image decay or attenuating pulses are applied to the target backing electrode, the flood beam is pulsed to secure persistence times of e.g. 2 minutes or more. The flood beam may be physically cut-off between pulses by reducing the potential of collimating electrodes or by applying a negative potential to a spacecharge grid, or the beam may be effectively cut off by reducing still more the potential of the target backing electrode or by raising the potential of the flood gun cathode and diverting the flood beam to the collector mesh, alternate "on" pulses coinciding with the decay and viewing phases of operation. The E.H.T. applied to the screen of the tube is at a minimum during the decay phase and is at a maximum during the viewing phase. The dutyratio of the pulsed flood beam may be adjustable for brightness control and the decay pulses may comprise trains of pulses differing in duration and amplitude.
Patent GB-466576-A (GB)
Title: Improvements in and relating to paste applying devices
IPC: A24C5/24
Filed: 1935-11-30
Abstract: 466,576. Coating webs. CRIGHTON, J., CHANDLER, R. J. A., and INDUSTRIAL MACHINERY CO., Ltd. Nov. 30, 1935, No. 33271. [Class 140] Apparatus for applying paste to a web, e.g. the wrapper web of a cigarette rod machine, comprises a paste pot or container having an outlet in which is rotatably mounted a feed roll having a concave surface complementary to a paste-applying disc, the surfaces of the roll being bevelled to prevent transference to the disc of any paste collected on the sides of the roll. As shown, a paste pot 10 having an inclined rear wall 11, is provided with a driven feed roll 13 arranged in the outlet and contacting with a paste-applying disc 19. The roll fits closely between side plates 14, is profiled at 20, Fig. 3, to fit the disc 19 and is bevelled at 21. The roll is embraced over a substantial arc by a bottom plate 23, Fig. 3, which may be adjustable and may be fitted with a scraper 23b. An adjustable scraper 24, furnished with one or more apertures, regulates the supply of paste which is fed from an upper container 28 by a loaded plunger 29. The pasting-device, together with the driving-mechanism for the roller and disc, is adjustable relatively to the web.
Patent GB-175446-A (GB)
Title: Improvements in or relating to the front wheel brakes of motor cycles and such like vehicles
IPC: B62K25/02
Filed: 1920-11-29
Abstract: 175,446. Stevens & Co. (1914), Ltd., A. J., and Stevens, H. Nov. 29, 1920. Wheels, facilitating detachment of.-The detachable front wheel 2 of a motor-cycle &c. and a brake drum 1 adapted to be connected to, and disconnected from, the wheel are carried on a central bolt which is formed in two parts, one part 3 being removable to permit the detachment of the wheel, and the other part 4 being fixed to the fork end 5 and adapted to remain in position for carrying the brake drum when the wheel has been detached. The driving-connection between the wheel hub and the brake drum comprises bolts 10 which pass through holes in the spoke flange 11 and screw on to the ends of studs 8 carried by the drum and passing through holes in the flange 9. Specification 330/14 is referred to. According to the Provisional Specification, a plate screwed to the face of the brake drum is recessed inwardly away from the wheel hub to receive a boss on the wheel.
Patent GB-1263788-A (GB)
Title: Production of carboxylic acids and anhydrides
IPC: C07C51/25
Filed: 1969-07-03
Abstract: 1,263,788. Carboxylic acids and anhydrides. BADISCHE ANILIN- & SODA-FABRIK A.G. 3 July, 1969 [4 July, 1968], No. 33620/69. Heading C2C. The invention relates to the manufacture of carboxylic acids and anhydrides by oxidizing aromatic hydrocarbons or unsaturated aliphatic hydrocarbons in the vapour phase with air at 350-450‹ C. in contact with a catalyst arranged in one or more tubes surrounded by a heatexchange medium. According to the invention, the heat-exchange medium flows in the same direction as the reaction gases. An example is given in which the invention is applied to the oxidation of o-xylene to yield phthalic anhydride. Other stated applications of the invention are the oxidation of naphthalene to phthalic anhydride, the oxidation of 1,2,4-trialkylbenzenes or #-alkylnaphthalenes to trimellitic acid or its anhydride and the oxidation of benzene or n-but-2-ene to maleic anhydride.
Patent GB-282390-A (GB)
Title: Improvements relating to vehicle wheels
IPC: B60B25/18
Filed: 1927-12-13
Abstract: 282,390. GaussÚ, A. Dec. 15, 1926, [Convention date]. Tyre attachments to rims.-The detachable side flange B is secured to the main rim-part A by means of ..11.. ring C which is externally threaded to engage corresponding threads on the rim parts. In the construction shown, the ring C is of broken form the heads being connected by toggle links 12, 13 for forcibly expanding the ring. The latter may be permanently attached to one of the rim parts and may be recessed to receive guide pins 17.
Patent GB-1526659-A (GB)
Title: Method for transalkylating nuclearmethylated phenols
IPC: C07C27/00
Filed: 1977-08-11
Abstract: 1526659 Transalkylation of nuclear-methylated phenols RUTGERSWERKE AG 11 Aug 1977 [9 Oct 1976] 33715/77 Heading C2C The invention relates to a method for transalkylating a nuclear-methylated phenol to o-cresol wherein at least one nuclear-methylated phenol is mixed with phenol itself and the mixture is subjected to heat and pressure in the gas or liquid phase in the absence of catalyst to give o-cresol.
Patent GB-388148-A (GB)
Title: Improvements in or relating to boiler cleaners or soot blowers
IPC: F28G3/16
Filed: 1932-08-31
Abstract: 388,148. Boiler-cleaners. GLINN, R. J., Babcock House, Farringdon Street, London. Aug. 31, 1932, No. 33726/31. [Class 99 (ii).] A soot-blower tube 2 is rotated and advanced or retracted simultaneously by a hand-wheel 7 secured to the outer end of a screw-threaded spindle 3 which is connected to the tube and engages a nut 4 mounted in a bracket 5 attached to the blower casing 6. The latter, which is bolted to the flange 10 of the wall box 9 with the interposition of distance-pieces 11, has a cleaning-fluid supply branch 13, and the tube 2 is provided with a lateral port 12 to coact therewith when it is in its working position. Fluid-tightness between the blower tube and casing is secured by packing 14 which is disposed on each side of a lantern ring 15 ported at 16 opposite the branch 13. In a modification the hand-wheel is replaced by a chainwheel which is secured to the inner end of the spindle 3, and the nut 4 carries an outwardlyextending tube to receive the spindle when the blower tube is retracted.
Patent GB-507203-A (GB)
Title: Improvements in or relating to the manufacture of cellulose ethers
IPC: C08B11/00
Filed: 1937-12-06
Abstract: 507,203. Cellulose others. MANDEVILLE, D. C., HOUGHTON, A. A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 6, 1937, No. 33746. [Class 2 (ii)] Low, substituted cellulose ethers are obtained by the addition of a liquid etherifying medium in the form of a fine mist, an atomized solution,. or an atomized emulsion in a suitable liquid medium, to comminuted and agitated alkali cellulose. The cellulose ethers so produced may be subjected to furfher alkylation to produce water soluble forms. In an example, comminuted sulphite wood pulp is added to a solution of caustic soda contained in a shredding machine. After some hours a solution of ethylene chlorohydrin in water is atomized into the machine for 2 hours and the temperature is then gradually raised to 30‹ C. The product is aged, acidified, centrifuged, and washed. It dissolves completely in 7À5 per cent NaOH solution when cooled to -7‹ C. with subsequent gradual rise of temperature. If the ethylene chlorohydrin were added in a thin stream a solution of the. product containing undissolved fibres would be obtained. Other examples employ dimethyl sulphate as etherifying agent, the product being converted if desired into a water-soluble form by further alkylation with methyl or ethyl chloride. In another example glyceryl alpha-monochlorohydrin is used as etherifying agent. In another example an emulsion of dimethyl sulphate in water containing Turkey red oil is atomized and introduced into the alkali-cellulose. The reaction mixture is stirred and at first heated, then allowed to cool. Specifications 410,152 and 410,153 are referred to.
Patent GB-1461479-A (GB)
Title: Solar heat energy conversion system
IPC: F03G6/00
Filed: 1974-07-31
Abstract: 1461479 Thermoelectric generators O A CREMONESE 31 July 1974 [18 March 1974] 33790/74 Heading H1K An electric generator consists of an enclosure cooled by a heat exchanger located inside it but fed with liquefied gas from a source outside it, and a thermopile, disposed in the enclosure wall, the output of which is converted within the enclosure to mechanical energy which is reconverted to electrical energy outside the enclosure. In the illustrated embodiment the thermopile 34 is disposed in the evacuated or thermal insulation filled space between inner and outer walls of the enclosure 12, which is cooled by liquid nitrogen generated at 18, and its output drives a D.C. motor 16 housed in a further enclosure 65 cooled to a lower temperature, at which the motor is said to be more efficient, by liquid hydrogen from generator 64. Coupling 56 connects the motor to A.C. generator 20 which may supply current to power the liquid gas generators on line 70.
Patent GB-929376-A (GB)
Title: Improvements in and relating to the preparation of dibenzofurans
Inventor: WALSH WILLIAM DEREK
Filed: 1960-10-03
Abstract: Dibenzofuran and its homologues are made by contacting diphenyl oxide or a homologue thereof, which has an unsubstituted o-position relative to the oxygen atom on each aromatic nucleus, at elevated temperature with a catalyst comprising platinum on charcoal.  The process is preferably carried out at 450-550 DEG C. at a pressure not substantially exceeding atmospheric.  The catalyst contains a minor amount of platinum, e.g. 5% by weight and may be in the form of granules.  Preferably the catalyst is contacted with the diphenyl oxide in a gas stream, comprising hydrogen or an inert gas such as hydrogen.  The catalyst may be regenerated by treatment with hydrogen in the absence of the diphenyl oxide.  The process may be carried out as a cyclic one with alternate reaction and regeneration zones. Specification 922,679 is referred to.
Patent GB-618939-A (GB)
Title: Improvements in and relating to fasteners
IPC: F16B5/12
Filed: 1946-11-14
Abstract: 618,939. Stud-and-socket fastenings. FERNBERG, E. B., and FERNTOL PATENTS, Ltd. Nov. 14, 1946, Nos. 33855 and 35820. [Class 44] For securing beading 30, Fig. 5, of channel section to an apertured support, a waisted stud 36, formed of a single strip of spring metal, is held in the aperture 35 of a retainer plate 34 and the assembly is slid along inside the beading to cooperate with one of the 'apertures in the support. In the form of Fig. 5, the beading is of semicircular section the flat side having flanges 32 which engage and locate the stud. The feet 43, 44 of the stud are bent or bowed so as to engage resiliently both with the beading and the retainer 34. In a modification the retainer is formed of a metal plate having instead of an aperture, a slot at one side and the feet of the stud are sharply cranked downwardly so as to engage both the retainer and the beading. Another form of retainer for use with square channel'section beading, Fig. 13, carries side flanges 55 taking up the distance between the flanges 62 and web 61 of the beading. The stud 57 has straight feet 58, 59 of which one is shorter to permit the insertion of the stud into the retainer. The retainer may alternatively comprise a length of strip the ends of which are bent over and towards each other, the waist of the stud being accommodated in the gap between the ends or if the ends are almost in contact as in Fig. 15, in notches 71 cut in them. In another form shown in Fig. 19, the retainer 72 has an upstanding locating lug 74'formed at one end and adapted to engage in an aperture adjacent that for the stud. It is located longitudinally by dimples 78 - 81 formed on'the flanges of the beading 75. Specification 525,202 is referred to.
Patent GB-885970-A (GB)
Title: Elastomers obtained from substantially amorphous polymers and copolymers of alpha-olefins and a process for their preparation
IPC: C08K5/09
Filed: 1958-01-08
Abstract: A linear amorphous polymer of an alphaolefin of formula CH2 = CHR, where R is an alkyl group of 1-4 carbon atoms, or a copolymer thereof, is vulcanized using an organic peroxide or hydroperoxide, as free radical initiator.  Specified polymers are those of propylene and butene-1 or copolymers derived from at least two of the olefins ethylene, propylene and butene-1, while the copolymer may also contain a conjugated diolefin, e.g. butadiene or isoprene, or acetylene.  Specified peroxides and hydroperoxides are benzoyl, chlorobenzoyl, cumyl and lauryl peroxides, the peroxides of methyl ethyl ketone and cyclohexanone, tertiary butyl peroxide, tertiary-butyl perbenzoate and cumene-, tetrahydronaphthalene-, decalin- and tertiary butyl-hydroperoxides.
Patent GB-473115-A (GB)
Title: Improvements in the production of photographic pictures
IPC: G03C5/08
Filed: 1936-12-11
Abstract: 473,115. Photographic emulsions and printing-processes. SOC. OF CHEMICAL INDUSTRY IN BASLE. Dec. 11, 1936, Nos. 34053 and 34054. Convention dates, Dec. 11, 1935 and Dec. 10, 1936. Drawings to Specification. [Class 98 (ii)] In the production of photographic pictures by printing a negative image on to a positive light-sensitive emulsion layer, negative and positive emulsion layers are used in at least one of which the gradation curve is steeper in the region of little blackening than in the region of much blackening and in which the range of blackening of the negative material corresponds with the range of intensity of the positive material. The gradation curves may be similar to a parabola or a portion of a hyperbola. The layers may be so chosen that the gamma of the resulting image curve of the shadows and the gamma of the high lights are greater than the gamma of the image curve of the middle tones. A negative produced on an emulsion of which the gradation curve in the region of little blackening is steeper than in the region of much blackening may be printed on a positive emulsion of which the gradation curve in the regions of little and much blackening is steeper than in the middle tones. The layers may be so chosen that the threshold value of the resulting image curve in the various intensity regions remains the same. The emulsions may be prepared as described in Specification 428,305. The gradation curves may be modified by suitable development, clearing, reducing or intensifying.
Patent GB-783290-A (GB)
Title: Improvements in or relating to washing apparatus for electrostatic precipitators
IPC: B03C3/78
Filed: 1954-11-25
Abstract: 783,290. Electrostatic precipitation. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 25, 1954 [Dec. 1, 1953], No. 34170/54. Class 39(1). Washing apparatus for a multi-cell electrostatic precipitator comprises a header assembly 20 extending vertically with respect to the frame 10 of the precipitator, a front roller means 15 rotatably supported by the assembly adjacent the upper end thereof, and adapted to move along a first track 14 supported horizontally by the frame 10, a second roller means 25 rotatably supported by the assembly adjacent the lower end thereof and adapted to move along a second track 22 supported horizontally by the frame 10, pulleys 27, 29, 30 at the ends of the first and second tracks 14, 22, upper and lower cable clamps 34, 35 carried by the assembly 20, a cable 44 passing around the pulleys and attached to the clamps, a plurality of nozzles 55, 54 supplying water and adhesive respectively to the electrodes from a straight pipe 51 and a bent pipe 52, and a motor 36 for rotating the cable 44 for moving the assembly 20. The clamping arrangement is such that the cable is clamped at two zones one on either side of the centre line of the header assembly, the cable being so positioned with respect to the clamping zones that by movement of the cable the header assembly can be moved to a position such that centre line thereof lies beyond the centre line of the pulleys whereby the header assembly can sweep the whole width of the frame. Limit and reversing switches 50 are mounted at the ends of the track support 18 for the upper roller track 14 and are operated by a pin 51 attached to the header 20. In the simplified construction shown in Fig. 11 the water tube 60 is much larger than the adhesive tube 61, has the rollers 15 attached thereto by the bracket 191, the roller 25 attached thereto by the plate 26, and the cable clamps 34 and 35 mounted thereon.
Patent GB-1511647-A (GB)
Title: Digital television system
IPC: H04N7/32
Filed: 1974-08-02
Abstract: 1511647 Television POST OFFICE 30 July 1975 [2 Aug 1974] 34206/74 Heading H4F Bandwidth reduction in a differential P.C.M. (D.P.C.M.) television or video phone system is achieved by transmitting only those D.P.C.M. signals relating to picture elements exhibiting change between frames, and without decoding the D.P.C.M. signal in the transmission path. The transmitter comprises a circulating D.P.C.M. frame store 8, 10, 11, 12 and 13, with multiplex switches 6 and 7 in the feed back loop. Stored D.P.C.M. signals arrive at switch 6 in synchronism with fresh D.P.C.M. signals, generated by image scanning, arriving via delays 2 and 5. The fresh D.P.C.M. signals and stored D.P.C.M. signals are tapped from the inputs of delays 2 and 12 respectively and applied to respective decoders 3 and 14 which produce P.C.M. intensity values applied in turn to subtractor 15. A movement detector (described more fully with reference to Figs. 3 and 4 (not shown)) receives the subtractor output and controls a mode changing search unit 20 (described more fully with reference to Fig. 2 (not shown)), which controls the switch 6 by selecting switching times in advance of actual stationary to moving transitions and after actual moving to stationary transitions. These switching times are chosen by unit 20 to occur at instances where no error is introduced thereby. Unit 20 also controls switch 7 and a R.O.M. 27 to insert smoothing signals into the circulating signal stream when errors due to switching cannot be avoided. The movement detector also performs noise reduction in three ways. Isolated frame differences in a two dimensional stationary area are rejected. If two D.P.C.M. signals of high value occur in the same position for two consecutive frames a stationary edge is assumed. An element is only deemed to have changed if at least one line adjacent element also changes. The transmission signal is taken from the output of switch 7 and enabled only during the moving mode (i.e. the update mode of store 8) via a buffer store producing a steady transmission rate. If the buffer becomes too loaded the sensitivity of a thresholding device 16, incorporated in the movement detector, is reduced with a consequential reduction of picture area deemed to be moving, until the buffer capacity is restored. The threshold device also acts to eliminate low level signal quantization noise. A switch 30 is provided, for testing purposes, whereby the mode changes are effected upon the actual stationary/moving transition instances. The D.P.C.M. word format is described with reference to Fig. 6 (not shown) and a receiver for use in the system is described with reference to Fig. 5 (not shown).
Patent GB-1024337-A (GB)
Title: Oleo strut
Inventor: HALL LELAND VINCENT
IPC: F16F9/06
Filed: 1964-08-24
Abstract: 1,024,337. Telescopic shock absorbers. HUGHES TOOL CO. Aug. 24, 1964, No. 34539/64. Heading F2S. A landing-gear telescopic oleo strut for an aircraft comprises a plunger 10 sliding within a cylinder 20, and end wall 12 of the plunger 10 being provided with an opening 14. A floating piston 30 co-operates with the interior of the plunger 10 to separate pressurized gas in a compartment 31 from a liquid filling the cylinder 20 and that part of the interior of the plunger 10 below the piston 30, these liquid filled compartments being connected by the opening 14. In the extended position of the strut a shoulder 13 of the plunger 10 normally abuts a shoulder 23 of the cylinder 20. The floating piston 30 is pre-loaded against the gas pressure by a spring 34 acting between the end wall 12 of the plunger 10 and the floating piston. The floating piston 30 is acted on by the spring 34 only in the initial stages of contraction or in the final stages of extension, the latter to absorb energy from the piston 30 in its return movement so as to minimize the transmission of shock to the aircraft especially if the return movement is caused by rapid unloading of the strut. In the contracted position of the strut the end wall 12 of the plunger abuts the end cap 21 of the cylinder 20 and the floating piston abuts the closure plug 11 of the plunger 10.
Patent GB-521917-A (GB)
Title: Improvements in and relating to vitreous stems for electric lamps or discharge devices
IPC: H01J9/32
Filed: 1938-11-28
Abstract: 521,917. Sealing leading-in wires. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 28, 1938, No. 34596. Convention date, Nov. 27, 1937. [Class 36] A short stem for an electric lamp or discharge device is formed by arranging a flared stem tube 10, leading-in wires 18 and exhaust tube 13 as shown in Fig. 1 and then heating the upper end of the stem tube to cause it to flow freely downward and form a solid mass of glass enclosing portions of the leading-in wires and closing the top of the exhaust tube, as shown in Fig. 2. Compressed air or gas is then admitted to the exhaust tube to blow an axial aperture 23, Fig; 4, through the mass of glass at its upper end. Air is also preferably blown into the space between the exhaust tube and the stem tube to round the joint therebetween. The thin glass coatings 31, Fig. 4, adhering to the leading-in wires are preferably removed to provide clean parts of the wires to which the filament may be attached. The skirt 12 of the stem tube may be attached to the main portion of the envelope of the lamp of discharge device by the method described in Specification 521,918, [Group XL]. In forming the stem the stem tube 10 is supported by a body 11 capable of rotation about a vertical axis and carrying a tube 17 which surrounds the exhaust tube, the tube 17 carrying a threaded ring 20 which supports the leading-in wires. Air for blowing out end of the exhaust tube is supplied through a nozzle 14 which also supplies air to the space'.between the stem tube and exhaust tube through holes 24 and the space between the exhaust tube and its surrounding tube 17,
Patent GB-422014-A (GB)
Title: Apparatus for burning liquid or gaseous and solid fuel
IPC: F23C1/02
Filed: 1933-12-08
Abstract: 422,014. Stoves burning solid or other fuel. LUBBOCK, I., JOYCE, J. R., and ASIATIC PETROLEUM CO., Ltd., St. Helen's Court, Great St. Helens, London. Dec. 8, 1933, No. 34610. [Class 126] Apparatus, such as a domestic boiler, for burning liquid or gaseous as well as solid fuels, comprises a combustion chamber having the flue outlet 6 at or near the bottom, a solid-fuel grate 12 in the lower part, and a burner 8 at the upper part. In the construction shown, the combustion chamber is formed by a lining 3 in a boiler 1, and the gases heat the boiler in passing up a rear passage to the flue 5. The burner 8, which may comprise an assembly of a fuel pump, an air fan, a motor for driving them, and auxiliary parts, is hinged to the boiler so that it may be swung aside to allow the aperture 7 to be used for access to the combustion chamber and for feeding fuel.