baber/WOPTO huggingface dataset:
Patent GB-1174018-A (GB)
Title: Improvements in Radiation Emission Apparatus
IPC: H01S3/125
Filed: 1968-03-12
Abstract: 1,174,018. Lasers. SANDERS ASSOCIATES Inc. 12 March, 1968 [14 April, 1967], No. 12068/68. Heading H1C. The peak intensity of the radiation emitted by a Q-switched laser is restricted to a selected maximum level by including, in the radiation path, a non-linear absorber having an absorption characteristic which increases with intensity. A suitable absorption material is cadmium sulphide in the form of an element 16, Fig. 1, located between a fixed resonator mirror 15 and a rotatable Q-switch prism 14. A ruby or neodymium-glass active medium 11 is used which is pumped by a Xenon flashlamp 12. The mirror 15 is in the form of an interferometer and the absorption element 16 is inclined at the Brewster angle. In a modification, Fig. 4 (not shown), the resonator includes a converging or diverging lens system (30, 31) for weakening or intensifying a parallel beam passing from the active medium to the absorber. A combined generator and amplifier is shown in Fig. 2 in which a pair of flash tubes 23, 24 in a reflective housing 26 are common to a generator active medium 20 and an amplifier active medium 25, the former medium being located with a non- linear absorber 27 in a resonator formed by mirror 21 and rotatable prism 22. It is stated that restriction of the intensity level of the emitted radiation results in increased duration of the emitted pulses.
Patent GB-300465-A (GB)
Title: Improvements in machines for cutting paper and the like material
IPC: B26D7/02
Filed: 1928-04-25
Abstract: 300,465. Fomm, R. K.. April 25, 1928. Guillotine machines.-In a cutting-machine a pile of paper is held by a presser 4 which acts. with constant pressure during the cutting action. The presser 4 is lowered on to the paper by cranks & connected to rods b engaging a bar 7 and slider c. When the presser is arrested the slider c descends and compresses a spring w within the slider head. The slide c is connected to the spring by a bell-crank g and levers f, d, e. x, y, are fixed pivots. The knife is reciprocated from a crank.
Patent GB-570118-A (GB)
Title: Improvements in or relating to electrical driving systems for ship propellers
IPC: B63H23/24
Filed: 1943-06-26
Abstract: 570,118. Driving arrangements for ships. DEAN, J. D., and CLARKE, J. H. July 26, 1943, No. 12160. Drawings to Specification. [Class 114] In an electric ship propulsion system of the kind wherein a propeller is driven by one or more alternating current motors, preferably of the synchronous type, supplied with current by a plurality of alternators each having its own prime mover, a variable pitch propeller is employed, in order to permit changes in speed of the ship whilst maintaining a substantially constant speed of rotation of the prime movers, which may be turbines, or internal combustion engines. The propeller displacement may thus be varied to suit the number of prime. movers in operation and the constant frequency of the alternators permits their use for running the auxiliary electrically-operated equipment of the ship. Pitch variation of the propeller may be effected by known electrical means, or hydraulically, in which case use is preferably made of the pressure liquid normally provided in connection with hydraulic steering.
Patent GB-418898-A (GB)
Title: Improvements in electrical musical instruments
IPC: G10H3/18
Filed: 1933-04-26
Abstract: 418,898. Thermionic valve circuits. VIERLING, O., 7, Kloeden Strasse, Berlin.- (Assignee of Jacobs, C. T. ; Chatham, New Jersey, U.S.A.) April 26, 1933, No. 12225. Convention date, April 27, 1932. [Class 40 (v).] In apparatus wherein the vibrations of the strings of a soundboardless piano are electrostatically or electromagnetically converted into electrical oscillations and taken to a loudspeaker 42, to assist in imitating piano tone a tone-modulating circuit with a curved translation-frequency characteristic may be introduced, comprising a tapped inductance or autotransformer 33, a variable resistance 35, and if desired an adjustable tuning condenser A by which also the harmonic structure may be controlled. In such a tone-modulating circuit, varying the resistance has the effect of rotating the transmission-frequency characteristic curve so that higher or lower frequencies are relatively emphasised. Reference has been directed by the Comptroller to Specifications 296,690, [Class 88 (ii)], and 393,612 (as open to inspection under Sect. 91 of the Acts), [Group XXXVIII].
Patent GB-252361-A (GB)
Title: Process of regeneration of contact masses for the catalytic hydrogenation of carbon oxides
IPC: C07C29/153
Filed: 1926-05-12
Abstract: 252,361. Patart, G. May 25, 1925, [Convention date]. Methyl alcohol; oxygenated organic compounds.-Catalysts for the synthesis of methyl alcohol and other oxygenated organic compounds by the catalytic hydrogenation of carbon oxides, comprising basic combinations of zinc oxide with metallic oxides of an acid nature, each compound containing at least two equivalents of zinc oxide for one of the acidic oxide, are regenerated by heating to redness in an open crucible or by slow circulation through an oxidizing flame. The treatment reoxidizes any oxides which have become more or less reduced, and eliminates sulphur and other impurities which have accumulated in the mass from the unpurified gases which may be employed. The basic chromates, vanadates, tungstates, and manganates of zinc are mentioned, particularly the compounds formed from three molecules of zinc oxide with one molecule of chromic acid. The presence in admixture with the catalyst of large quantities, e.g. 15-20 per cent, of alkaline sulphates does not deleteriously affect its activity. The Specification as open to inspection under Sect. 91 (3) (a) describes the agglomeration of the catalysts by first forming them into a thick paste with gum tragacanth, then drawing the paste into strips and partially drying, and finally breaking the strips into grains, which are completely dried; and sifted. It also states that of the basic zinc chromate catalysts, the compound formed from three molecules of zinc oxide with one molecule of chromic acid is more active than one formed from two molecules of zinc oxide, and this again is superior to one containing one molecule of zinc oxide to one molecule of chromic acid. The use of the pigment " zinc yellow " as a catalytic material is referred to. This subject-matter does not appear in the Specification as accepted.
Patent GB-703824-A (GB)
Title: Improvements in or relating to color motion picture photography
IPC: H04N9/11
Filed: 1952-05-15
Abstract: 703,824. Colour television. CLARK, D'A. M. (Technicolor Motion Picture Corporation). May 15, 1952, No. 12303/52. Class 40 (3) An arrangement for colour kinematography comprises a colour-television camera having a plurality of outputs carrying video signals corresponding to respective colour-component images of the scene to be photographed, a plurality of television reproducers each connected to a respective output of the television camera, a plurality of motion-picture cameras each recording the image reproduced on a respective one of the television reproducers, and a network for supplying synchronizing signals to the television camera, the reproducers and the motionpicture cameras. Light from the scene 9 is reflected by half-silvered mirrors through blue filter 30, green filter 32 and red filter 34 to form respectively coloured component images upon the targets 12, 13, 14 of the television camera 11. The targets are scanned by electron beams from respective electron guns under the control of scanning waveforms generated in a scanning control unit 21, energized from the power supply 22. The video-signal outputs from the camera 11 are applied to individual linear amplifiers 36, 37, 38 having respective manual gain controls 39, 40, 41 and thence to amplifiers 42, 43, 44 providing an adjustable amount of signal-amplitude expansion or compression under the control of respective manual control means 45, 46, 47. The amplified signals are applied to respective-cathode ray tubes 50, 49, 48 controlled by the scanning signal output from control unit 21 thus reproducing in black and white the respective colour component images of the scene 9. These are photographed by the intermittentmovement motion-picture cameras 55, 56, 57 which are also synchronized from the unit 21 so that the film pull-down occurs during the television frame blanking intervals. The three black-and-white component motion-picture films thus produced are then combined by any suitable colour process to produce a single coloured film. The video-signal outputs from the amplifiers 42, 43, 44 are also applied to cathode-ray tubes 61, 62, 63, also synchronized from unit 21, the images produced thereby being projected through respectively coloured filters 70, 71, 72 on to a screen 60 for viewing by the person controlling the operation of the amplifiers 36, 37, 38, 42, 43 and 44.
Patent GB-883313-A (GB)
Title: Improvements in or relating to the manufacture of ammonium sulphate
Inventor: SYERS ROLAND
IPC: C01C1/242
Filed: 1957-04-16
Abstract: Ammonium sulphate is prepared by forming a solid or semi-solid mass (i.e. a mass containing up to 20% water), by admixture of ammonium sulphate with aqueous sulphuric acid and contacting the mass so formed with ammonia gas, without the application of heat, drying the reacted mass, if necessary, and recycling at least part thereof for admixture with a further quantity of sulphuric acid. The sulphuric acid employed in the process is conveniently a sulphuric acid waste liquor e.g. pickle liquor or waste acid from the leaching of titanium ores.  The reaction with ammonia gas is carried out by passing the solid or semi-solid mass, which may be admixed with an inert solid diluent or filler, e.g. CaSO4, through a drum mixer in counter-current to a stream of ammonia or a gas containing it. Effluent ammonia gas leaving the drum may be cooled to free it from entrained water and subsequently be passed to a recovery tower for a recycling process.  The portion of the product which is not recycled may be leached with water to leave insoluble ferric oxide, and the (NH4)2SO4 crystallised from the solution.
Patent GB-1245204-A (GB)
Title: Colour intaglio printing machine, more particularly for printing textiles
Inventor: SAUERESSIG JOHANN HEINRICH
IPC: B41F9/00
Filed: 1970-03-16
Abstract: 1,245,204. Printing apparatus. J. H. SAUERESSIG. 16 March, 1970 [29 March, 1969], No. 12477/70. Heading B6C. A multi-colour intaglio printing machine comprises a plurality of vertically-arranged printing units, each comprising an intaglio cylinder 10, an impression cylinder 11, an ink duct roller 13 and intaglio cylinder doctors 15, 16. All these components other than the impression cylinders 11, are mounted on a movable frame which either is removable from the main frame of the printing machine, or is hinged on the main frame. When the movable frame is removed or swung away from the printing position illustrated the intaglio cylinders 10 can be cleaned or replaced. Two hinged frames may be provided one on each side of the printing machine, and one may be in the printing position while the cylinders and inking apparatus carried by it are cleaned or replaced.
Patent GB-661424-A (GB)
Title: Improvements in or relating to lubrication of exhaust valve shanks in internal-combustion engines
IPC: F01L3/08
Filed: 1949-05-10
Abstract: 661,424. Lubricating valves. SOC. D'ETUDES DE MACHINES THERMIQUES. May 10, 1949 [May 27, 1948], No. 12480/49. Class 7(ii)  The felt elements, tapes or like absorbent means of a lubricating device sur-. round the shank 1 of an exhaust valve and, are adapted to be supplied with lubricant. to constitute a source of lubricant for continuous delivery to the valve shank periphery by means which avoid the delivery of an excess of lubricant. The lubricant may be fed from an annular felt pad 6 confined in a housing 7 of perforated steel sheet and arranged in a recess 5 of the valve-spring seating member 2, through ducts 8 to a felt wiper ring 10 contained. in a perforated sheet metal ring 11.
Patent GB-593056-A (GB)
Title: Improvements in sensitized photographic emulsions
Filed: 1944-05-18
Abstract: 41 - Acetoxy - 31 - acetyl - 2 - methylnaphtha - 11 : 21 : 4 : 5-thiazole is prepared by refluxing together 4 - phenyl - 2 - methylthiazole - 3 - acetic acetic acid, anhydrous sodium acetate and acetic anhydride.  41 - Hydroxy - 31 - acetyl - 2 - methylnaphtha - 11 : 21 : 4 : 5-thiazole is prepared either by hydrolysing a spirit solution of the 41-acetoxy compound with aqueous caustic soda or by heating together 41-hydroxy-2-methyl-b -naphthathiazole, nitrobenzene and aluminium chloride with either acetyl chloride or acetic anhydride and treating the solution obtained with dilute hydrochloric acid or by heating together 41 - acetoxy - 2 - methyl - b  - naphthathiazole, nitrobenzene and aluminium chloride.  The compound may be condensed with hydrazine, an alkyl-, aryl, a  : a -dialkyl-, or a  : a -diaryl-hydrazine, semicarbazide, thiosemicarbazide, hydroxylamine or aminoguanidine.
Patent GB-1594773-A (GB)
Title: Plastics pipe part particularly a thermoplastics pipe part
IPC: F16L11/04
Filed: 1978-03-30
Abstract: The thermoplastic pipe body (1) is provided with a polyurethane foam layer (4) which has a closed skin. The polyurethane foam layer contains an inorganic filler for damping the noise nuisance. If the pipe is provided with a socket (2) having an internal groove (3) and an external flute (5), the external diameter of the polyurethane foam layer (4) is at most equal to the external diameter of the externally surrounding flute (5). <IMAGE>
Patent GB-528073-A (GB)
Title: Improvements in or relating to electric water heaters
IPC: F24H9/20
Filed: 1939-04-26
Abstract: 528,073. Heating water by electricity. ZIP HEATERS, Ltd. April 26, 1939, No. 12561. Convention date, April 27, 1938. [Class 39 (iii)] [Also in Group XXXVII] In an electric water heater, the switch 9 controlling the current supply is operated by a rod 10, so connected to a friction sleeve or band 11 on the spindle 6a of the screw-down watersupply valve 6 as to allow further opening or closing of the valve after the switch has been closed or opened. Screws 11a with springs 11b are provided on the friction band to adjust the friction contact with the spindle. A switch 3 controls the current supply to a heating element 2a additional to the main element 2. An air vessel 13 connected to the water supply pipe maintains the supply to the heater when the pressure in the pipe drops for a short period.
Patent GB-316528-A (GB)
Title: A framed transparent cover for baskets
IPC: B65D6/08
Filed: 1928-04-30
Abstract: 316,528. Burton, Ltd., J. W., and Burton, J. W. April 30, 1928. Baskets.-A basket is provided with a transparent cover secured to or interposed in a frame of plywood or similar material, the cover fitting on the edge of the basket and being formed with recesses a<1> to accommodate the handle. The ends of the cover are provided with metal attachment strips c adapted to be bent up through slots a<3> in the basket ends. Additional strips a<2> may be provided transversely of the cover above or below the transparent material. The cover is released from engagement with the sides of the handle by pressing on the latter and deforming it.
Patent GB-236017-A (GB)
Title: Improvements in or relating to internal-combustion engines
IPC: F02F1/36
Filed: 1924-05-23
Abstract: 236,017. Orion Engineering Co., Ltd., and Skelsey, F. H. May 23, 1924. Casings; cylinders, combustion chambers and covers of.-A cylinder block which is designed to present a clean external appearance, is rectangular in horizontal cross-section and has sides 3 which taper upwardly and have openings 7 with removable covers to provide access to the valvegear and holding down bolts. Removal of the head, which has combustion chambers as shown, is facilitated by projections 10, 11 which may be prised apart by the insertion of a tool.
Patent GB-468871-A (GB)
Title: Improvements in and relating to electric motors
IPC: H02P1/44
Filed: 1936-05-05
Abstract: 468,871. Induction motors. BRITISH THOMSON-HOUSTON CO., Ltd., and MAGGS, A. H. May 5, 1936, No. 12698. [Class 35] In a capacitor motor with halves of the main winding in series at starting and in parallel during running, with condensers in the auxiliary circuit in parallel for starting and series during running, the auxiliary circuit is so connected during running that the voltage between the remote ends of the main and auxiliary windings is lower than when the auxiliary winding is connected to one end of the main winding. In the form shown in Fig. 2, which shows the running connections, the main winding halves 3, 4 which were in series for starting are connected in parallel and one terminal of the auxiliary winding 5 which had been connected to supply lead 2 is connected to condenser 6 which is so connected that the potential of the mid point of winding 5 is the same as that of the supply lead 1. Connection 8 may be omitted if desired. Fig. 4 shows alternative running connections corresponding to starting connections wherein the outer ends of the condensers 6, 7 are bridged and the left-hand terminal of winding 5 is connected to supply lead 2. Specification 405,591 is referred to.
Patent GB-464602-A (GB)
Title: Improvements in methods and means for producing ply yarns
IPC: D02G3/28
Filed: 1936-05-05
Abstract: 464,602. Spinning ply yarns. COLLINS & AIKMAN CORPORATION. May 5, 1936, No. 12719. Convention date, May 18, 1935. [Classes 120 (ii) and 120 (iii)] Ply yarn is produced by spinning rovings R simultaneously drawn through a drawing- head and led by a guide block 30 to a twist point 34 where they are twisted together by any convenient means, such as cap spindleapparatus. The delivery rollers of the drawing-head consist of a fluted lower roller and a soft covered upper roller provided with a co-operating groove and flange 24, 23 to maintain the separation of the rovings, a reciprocating guide-bar 38 being provided to prevent wear of the rollers. The guide block is preferably made of porcelain with a smooth glazed surface, and is provided with converging guide surfaces 33 in accordance with the number of rovings and is pivotal about a stud 31 so as to compensate for any variations due to the lateral traverse of the rovings or to any inequalities.
Patent GB-387649-A (GB)
Title: Process and devices for improving the "picking-up" in internal combustion engines
IPC: F02N99/00
Filed: 1931-05-01
Abstract: 387,649. Spray carburetters. SOC. GENERALE DES CARBURATEURS ZENITH, 10, Rue Petitot, Geneva, Switzerland. May 1,1931, No. 12937. Convention date, May 1,1930. Void [Published under Sect. 91 of the Acts]. [Class 7 (iii).] In order to facilitate " pick-up," the action of opening the throttle valve causes a sudden injection of fuel during the actual opening movement, and an extended injection which continues for an appreciable time after the throttle movement has ceased. Fuel from a float chamber 5 is delivered past a calibrated orifice 4 and is discharged at 3 into a Venturi tube 2. At the bottom of the float chamber are disposed two cylinders 9, 10 containing pistons 11, 12 respectively with apertures 13,15 therein, a disc valve 14, 16 being suspended from each of the pistons. The cylinder 9 is open at the top and the cylinder 10 is longer than the cylinder 9 and has a slot 19 in its wall through which passes one arm 28 of a threearmed member 35, another arm 21 of which is connected directly to the piston 11. The arm 28 consists of a fork adapted to support the head 25 of a rod 23 attached to the piston 12, a spring 26 and its bearing plate 27 being inserted between the piston and fork. The member 35 is actuated from the throttle valve 32 through a link 34 and a lever 30 pivoted at 31. If the throttle be opened to accelerate, the piston 11 is pushed down, the valve 14 is forced to its seat and an immediate injection of fuel takes place through the duct 18. Lowering of the fork 28 permits the spring 26 to force down the piston 12 and give the extended fuel injection. Closing the throttle restores the pistons to their original positions. In a modification, Fig. 4, the weight of the piston 12 is relied upon to effect the extended injection of fuel. A lever 42 actuated from the throttle valve moves the piston 11 directly through a rod 20, and its free end 47 supports the piston 12 through a cross-pin 45. When the throttle is opened, the piston 11 is forced down immediately, but the piston 12 is allowed to fall under its own weight. To prevent an excessive supply, the piston 12 has a recess 48 which, in conjunction with an orifice 52 in the cylinder wall, serves to return fuel to the float chamber after a predetermined portion of the stroke. A valve 55 prevents entry of fuel into the cylinder on the return stroke of the piston, and a ball valve 56 in the piston serves to prevent small oscillations due to vibration of the accelerator mechanism. In a further modification, the pump for extended injection may be actuated in known manner by suction in the engine manifold. The supplementary fuel may be injected through a nozzle other than that for normal running.
Patent GB-206451-A (GB)
Title: Improvements in packages for the packing and transport of merchandise and particularly for the packing and transport of bananas
IPC: B65D85/34
Filed: 1923-05-15
Abstract: 206,451. Wigg, C. May 15, 1023. Packing bananas.-Relates to a package or case for merchandise, particularly bananas, and of the general type described in Specification 9142/13, and to means for assembling the parts. The packages comprise two end portions 4, Fig. 2, and a strip 1, Fig. 1, of flexible material to form the cylindrical enclosing wall. Battens 2 are attached transversely to the exterior of the strip, and are grooved at 3 near the ends. The grooves may be strengthened by sheet metal, or a sheet metal member 7, Fig. 10, having flanges 8 to form grooves, may be affixed. In assembling the parts, the strip 1 is placed upon a cradle 10, Fig. 6, having a concave platform 11 somewhat shorter than the battens 2. The bananas &c. and packing material are placed on the strip, the end pieces replaced in the grooves, and the strip is brought around and over tha contents so that the end pieces engage with all the grooves. Wires are tensioned and secured around the ends of the battens to hold the parts in place. The end 1<x> of the flexible material projects beyond the last batten and may be moved to give access to the interior for inspection. In a modified form of end-piece, Fig. 8, a layer of segments 4 engages the grooves, and a layer of segments 4<x>, forming a circle of slightly smaller diameter, supports the projecting ends of the battens 2.
Patent GB-261287-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F5/10
Filed: 1926-05-21
Abstract: 261,287. Rose, R. May 21, 1926. Tobacco pipes.-A bowl cover 10 has a small central hole 11 for lighting the pipe and is held on the bowl by means which can be folded flat against the cover when not in use. In one form, Fig. 2, plate springs 12 are hinged to the cover by butt hinges 14. In a modification, Fig. 4, a flattened coil spring 20 is secured to integral lugs 21 on the cover. In further forms, a single C-shaped clip or one or more S or other shaped clips are employed, or folding projecting portions or clips engage with the inner edge of the pipe bowl. A match-striking surface 25 may be provided on the cover. According to the provisional Specification, the spring clips or other projections may be integral with the cover, or the cover may be hinged to the pipe bowl or held by means of handle.