baber/WOPTO huggingface dataset:
Patent GB-510534-A (GB)
Title: Improvements relating to centrifugal governors
IPC: G05D13/10
Filed: 1938-02-02
Abstract: 510,534. Speed governors. C.A.V.-BOSCH, Ltd., BROOK, K., and GILLIGAN, W. H. Feb. 2, 1938, No. 3239. [Class 57] The weights f of a centrifugal governor are connected to bell crank levers e pivoted on pins d and connected by a pin g to the rod h which is connected to the regulating .member. A plate m is secured to the governor boss by screws k and has edges n bent over to cover the pins d, g, to prevent their displacement. Specification 481,271 is referred to.
Patent GB-842500-A (GB)
Title: Improved continuous process for the conversion of uf to uf
Inventor: SMILEY SEYMOUR HOWARD
IPC: C01G43/06
Filed: 1958-01-31
Abstract: Uranium tetrafluoride of high bulk density is produced by continuously introducing gaseous uranium hexafluoride, fluorine and hydrogen into a reaction zone and continuously withdrawing the resulting uranium tetra-fluoride powder and gases from the zone. The gases are preferably preheated to 175-450 DEG F.  The weight ratio of fluorine to uranium hexafluoride supplied preferably varies between 1/10 to 1/25 , whilst the hydrogen is normally employed in a 100 to 400% stoichiometric excess.
Patent GB-1476618-A (GB)
Title: Vacuum cleaner nozzle
IPC: C01B15/043
Filed: 1976-01-28
Abstract: 1476618 Vacuum cleaner nozzles ELECTROLUX Ltd 28 Jan 1976 [29 Jan 1975] 03373/76 Heading A4F A vacuum cleaner nozzle 10 comprises a comblike part having a head 14 rotatably mounted in a housing 11 so that the part can be turned from a first position Fig. 1 for cleaning short-pile carpets, in which a longitudinal slot 23 in the head 14 communicates via a channel 24 with a suction channel 13, to a second position Fig. 2 for cleaning deep-pile rugs, in which the teeth 18 of the comblike part are extended so that passages therein communicate with the suction channel 13 via a common channel 19. As shown the teeth 18 have plough-like projections 21. The slot 23 may house a rotary brush roller for raising dust.
Patent GB-567524-A (GB)
Title: Process for effecting abnormal addition of hydrogen halide, hydrogen sulfide and mercaptans
IPC: C07C17/08
Filed: 1943-03-02
Abstract: Abnormal addition (i.e. contrary to Markownikoff's rule) of hydrogen halide, hydrogen sulphide or a mercaptan to an unsaturated aliphatic carbon linkage in an organic compound is effected by reacting in the presence of a metallo-hydrocarbon compound and light capable of photo-chemically dissociating the same to form free radicals. Temperatures from about 25 to below 0 DEG  C. are used.  In particular, aliphatic compounds, especially hydrocarbons, having one or two terminal olefinic linkages may be reacted or compounds having an olefinic linkage between non-terminal carbon atoms having a dissimilar number of hydrogen atoms attached thereto, for example where one carbon is secondary and the other tertiary, or where both are primary or secondary but have unequal numbers of chlorine, bromine, fluorine and/or iodine attached.  Numerous hydrocarbons containing olefinic and/or acetylenic linkages are specified.  These may be substituted in the nucleus or aliphatic chain, as in vinyl, allyl, crotyl and methallyl halides, methyl acrylate or methacrylate, divinyl, dially or dimethallyl ether.  Suitable mercaptans may be of alkyl, aralkyl, alkenyl, aralkenyl or aryl character containing one or more-SH groups, particularly n or iso-alkyl chain mercaptans derived from petroleum, and dimercaptans, particularly those of the formula HS(CH2)nSH, which with poly-unsaturated hydrocarbons produce high molecular weight thio - ethers.  Metallo - hydrocarbons specified include numerous di-, tri- and tetra-alkyl and -aryl derivatives of lead, tin, germanium, cadmium, lanthanum, bismuth and chromium, and hexaphenyl disilane. Reaction may be effected in liquid and/or vapour phase. Ultra-violet light of any wavelength may be used, about 3600   being effective using tetraethyl lead.  In examples: (1) pure propylene is introduced into an evacuated "Pyrex" (Registered Trade Mark) glass container up to a pressure of 102.8 mm., hydrogen bromide to give a further 102.2 mm. and tetraethyl lead equal to 0.3 mm (.18 mol. per cent) added, and the mixture subjected to radiations from a quartz mercury light for about 1 hour at 25 DEG C.  About 60 per cent of the propylene is converted to give mainly n-propyl bromide; (2) .02 mol. per cent of the catalyst is used giving 36 per cent conversion to n-propyl bromide; (3) in the absence of the catalyst, substantially no reaction occurs; (4) and (5) propylene and hydrogen sulphide in equal volumes and in liquid state are illuminated for 6 minutes at about 0 DEG  C., in one case in the presence of tetraethyl lead with conversion to n-propyl mercaptan and di-n-propyl sulphide. Specifications 554,499 and 558,790 are referred to.
Patent GB-1500941-A (GB)
Title: Device for filtering and separating fluid mixtures
IPC: B01D29/11
Filed: 1975-01-27
Abstract: 1500941 Separator for oil and water KEENE CORP 27 Jan 1975 [3 Sept 1974] 3410/75 Heading B1D A separator for removing oil from water comprises an outward-flow tubular assembly of a filtration and coalescing element 6 inside a loose element 22 of polyester felt which is preferentially wetted by water. Element 22 retains oil droplets which rise to the top of space 60 between the elements and accumulate until their buoyancy overcomes the surface tension, allowing large oil drops to penetrate the top of element 22 to reach zone 68, whence oil is discharged at 4 through a valve (not shown). Water discharges at 3. Element 22 is secured to element 6 at both ends. A drawstring may be used to secure the top of element 22 to a hexagonal stud on one end cap of element 6 (Figs. 3, 5 not shown). Element 6 comprises a screw-threaded inlet fitting and an annular pleated layer of 'paper', made of rayon, polyester or glass fibres, within a perforate support sleeve (Fig. 2 not shown). In Fig. 4 (not shown) layers of bonded fibreglass (31) and unbonded fibreglass (38) enclose the support sleeve and are compressed by respective screen layers (41 and 40), the inner fibreglass layer being of smaller fibre diameter and more compressed. Elements 6 and 22 could be separable to allow replacement of element 6 when clogged with solids.
Patent GB-981750-A (GB)
Title: Apparatus for drying particles carried in a stream of gas
IPC: F26B17/10
Filed: 1963-01-28
Abstract: 981,750. Drying apparatus. FARBENFABRIEKEN BAYER A.G. Jan. 28, 1963 [Feb. 3, 19621, No. 3456/63. Heading F4G. Particulate material to be dried is carried in a stream of gas through a tangential slot into the lower, cylindrical part 2 of a chamber 1 and upwardly through a converging portion 4 to the upper end of an outlet tube 5 which is mounted along the vertical central axis of the chamber, the lower end 9a passing out through the base of the chamber. A helical plate 7 is mounted between the outlet tube and cylindrical part 2 and the outlet tube is axially displaceable.
Patent GB-683587-A (GB)
Title: Improvements in or relating to electric heating bottles
IPC: A47J41/00
Filed: 1951-02-15
Abstract: 683,587. Electric heating pads or hot water bottles. PLATEN, B. C. VON. Feb. 15, 1951 [Feb. 21, 1950], No. 3699/51. Class: 39(iii) [Also in Group XIII] In a heating bottle or pad containing liquid or gas and having flexible walls 1 and an elongated electric heater 3 surrounded by a rigid protecting tube 9 pervious to the fluid in the bottle, overheating of the flexible walls if they come into contact with the tube 9 is prevented by flexible elements 14 forming coils transverse to the heating element and around the tube 9. The elements may be metal wires of 0.1 mm. diameter or several such wires twisted into a cable and are preferably of aluminium, brass, stainless steel or copper. The elements may be formed into a flexible network by perpendicular metal or fibre threads 13 and may be spaced from the tube 9, or may be vulcanized into the inner surface of the rubber wall of the bottle. The elements may comprise individual sealed conduits 14a formed in or attached to the plastic wall of the bottle, and containing a liquid of vapour pressure equal to that of the atmosphere e.g. a solution of calcium chloride. The tube 9 is perforated especially at 16 near the plug and an upper extension thereof is screwthreaded into the threaded neck of the vessel. Air may be blown into the bottle through a conduit 6 passing through a plug 2, the outer end of the conduit 6 carrying a non-return valve or a rubber cap 8. The conductors 4 may be disengaged from the plug 2. The elements 14 may comprise one or more flexible metal plates.
Patent GB-1513641-A (GB)
Title: Centrifuge
IPC: B04B9/12
Filed: 1976-01-30
Abstract: 1513641 Centrifugal separator O A SUOVANIEMI 30 Jan 1976 [14 Feb 1975] 03736/76 Heading B2P A centrifuge, e.g. for use in a laboratory comprises a rotor 3 mounted inside a protecting hood 4 and having a shaft 10 driven via transmission means 8, 9, 11 by means of an electric motor 6, the motor and the rotor-hood assembly being mounted side-by-side on a support plate 2 within a protective box 1 provided with a cover 14. The plate 2 is flexibly mounted on the bottom of the box by means of elastic spacers 5.
Patent GB-474972-A (GB)
Title: Improvements in radio compasses and direction finders
IPC: G01S1/02
Filed: 1936-02-07
Abstract: 474,972. Directive wireless signalling. KRUESI, G. G. Feb. 7, 1936, No. 3767. Convention date, Feb. 8, 1935. [Class 40 (v)] Relates to radio compasses of the type described in British Specification 452,651* and U.S.A. Specification 1,868,945, in which the pick-up on a directional and non-directional aerial is combined with a locally-produced oscillation, through a balanced modulator to produce a cardioid field-curve, which is then periodically reversed in polarity so as to indicate the desired direction. According to the invention, the inductance-capacity ratio of the two branch circuits of the modulator is first made constant substantially throughout the working range of frequencies, and the necessary balancing of the two circuits is then effected by varying only the inductive coupling between them. As shown in Fig. 1, the grids of the balanced modulator B are coupled in phase to a non-directive aerial A, and the plate circuits are coupled to the input 18 of the receiver D. The pick-up from the directive aerial C is simultaneously fed to the receiver through a transmission line 24 coupled to a mixing transformer 26 comprising three primary coils 28, 30 and 32, and a secondary coil 34 arranged as shown in Fig. 2. The plate coils 28, 30 and the frame aerial coil 32 are arranged substantially as described in Specification 452,651*, but each coil is mounted upon a former slidable upon a support 36 and the secondary coil 34 is mounted on an inner slidable former 40. An electrostatic shield 42 separates the former 40 and support 36. The desired balance to produce a symmetrical field pattern is secured by moving the frame aerial coil 32 towards one or other of the plate coils 28, 30. In addition, the plate coils may be moved relatively to each other. Alternatively, the frame aerial coil 34 may be adjusted alone, relatively to the other coils. The moving coil 44, Fig. 1, of the phase-meter indicator E is connected to the output of the receiver D, whilst the field-coil 46 is fed from tappings on the secondary winding 56 of the low-frequency local oscillator B1 feeding the balanced modulator. A wave-change switch 82 for the frame aerial is ganged to a corresponding switch 80 for the mixing transformer. In a modified arrangement in which the directional aerial is connected in push-pull to a balanced modulator, and the non-directional aerial is coupled to the output, so that the carrier-wave is present in the branch circuits of the modulator, the coupling coils between the modulator and the detector are wound in opposition and are adjustable so as to prevent the transfer of the carrier and undesired sideband frequencies, owing, for instance, to the different amplification effects of the valves in circuit. The Specification as open to inspection under Sect. 91 also comprises the subject-matter contained in Specification 475,090, some of which, however, does not appear in the Specification as accepted.
Patent GB-838656-A (GB)
Title: Production of resinous compositions
IPC: C09D157/00
Filed: 1957-02-05
Abstract: A method of producing a complex reaction product comprises admixing in the presence of an aromatic hydrocarbon, ester or ketone solvent (1) a water-insoluble aldehyde-urea, alkylated aldehyde-urea, aldehyde-aminotriazine or alkylated aldehyde - aminotriazine condensate with (2) from 40 to 95 weight per cent of a carboxy copolymer of an alpha-beta unsaturated monocarboxylic acid of not more than four carbon atoms, and a monoethylenically unsaturated monomer copolymerizable therewith, the monocarboxylic acid comprising 5 to 25 weight per cent of the carboxy copolymer and heating the mixture to form the complex reaction product. Acrylic, methacrylic and crotonic acids are suitable carboxylcontaining copolymers, which may be copolymerized with, for example, vinyl aromatic compounds, esters of acrylic, methacrylic and crotonic acids, vinyl aliphatic cyanides, monovinyl ethers and unsaturated alcohol esters, lists of such compounds being given.  The copolymerization may be effected in solution in, for example, aromatic hydrocarbons, esters, ketones, with a catalyst such as cumene hydroperoxide or benzoyl, acetyl or phthalic peroxide.  The products of the invention may be used as enamels with the addition of pigments, or objects containing inert fillers such as wood flour or asbestos can be produced. Suitable plasticizers are dibutylphthalate or fumarate, epoxidized oils, dioctyl sebacate, di-(2-ethyl-hexyl) phthalate and castor oil.  In an Example (1) the copolymer, prepared by the copolymerization of vinyl toluene, methyl methacrylate, and acrylic acid, is blended in xylene with butylated urea formaldehyde resin and baked as a film at 150 DEG C.  In Example (4) a butylated formaldehyde resin is used and in Example (5) the copolymer is obtained from vinyl acetate and crotonic acid.
Patent GB-557040-A (GB)
Title: Improvements in or relating to guards for protecting loaded chains
IPC: B66D3/26
Filed: 1942-03-25
Abstract: 557,040. Chain guards.. KING, Ltd., G. W., and KING, D. M. March 25, 1942, No. 3979. [Class 78 (v)] [Also in Groups XXIV and XXXVII] A guard for loaded chains, more particularly on electric pulley hoist blocks, consists of an arm 20 pivoted at 24 and spring-pressed to bring a groove 23 in its upper part 21 into enclosing relationship with the alternate links of the chain 11 which lie in a vertical plane. A bail-pin 42 of the positioning spring 40 engages the hooked upper end 43 of the arm 20, the opposite end of the spring being connected to the pulley-block frame 14 or to the correspond-. ing upper end of the opposite arm 20 when such is provided. An adjustable screwed bolt 35 fitted with a locking nut 35a strikes against a frame-mounted stop 36 to limit the chainward movement of each arm 20, and the pivot 24 is mounted on a carrier 25, held to the holder 26 by a U-shaped key 31. If desired a pushswitch 45 may be provided for each arm whereby tilting of the arm by a displaced chain will cause the motor to stop.
Patent GB-371077-A (GB)
Title: Improvements in or relating to the photographic production of pictures
IPC: G03C7/22
Filed: 1931-02-09
Abstract: 371,077. Photographic and kinematographic pictures ; colour photography. KODAK, Ltd., Kingsway, London.-(Assignees of Capstaff, J. G. ; Kodak Park, Rochester, New York, U.S.A.) Feb. 9, 1931, No. 4042. Convention date, Feb. 25, 1930. Drawings to Specification. [Class 98 (ii).] Photographic or kinematograph pictures are produced by forming a silver image in an insoluble colloid layer interposed between and adherent to a support and a soluble gelatin layer (which is preferably permanently coloured) treating the silver image in a bath, such as the ozobrome bath, which will react with the silver to harden differentially the portions of the adherent gelatin layer adjacent to the image, and dissolving away the unhardened parts of the adherent gelatin layer as with warm water. The support may be of cellulose acetate or other cellulose derivative, and the adherent gelatin layer may be ready-coloured with a permanent dye or pigment, or contain colourless leuco compounds which may be converted into coloured compounds by subsequent treatment ; or it may be treated with colour after the relief image has been formed in it. After treatment with the ozobrome or like bath, the layers may be cleared with a bath of sodium or potassium sulphite. The silver image may remain with the gelatin relief image, or it may be removed by means of a bath of sodium thiosulphate. For two-colour pictures, the two colour components may be produced by the above-described process in layers coated on opposite sides of a transparent support. The Specification as open to inspection under Sect. 91 (3) (a) states also that a single layer containing the soluble gelatin, and the silver halide emulsion prepared with insoluble gelatin as vehicle, may be coated on the support instead of the two superimposed layers and may include permanent dyes, pigments or coloured particles ; that the soluble gelatin layer may be coated on the support underneath the silver halide emulsion layer, in which case the image layers may be stripped from the support on treatment with warm water to develop the relief image ; that more than one image may be formed in the silver halide emulsion layer ; and that the process may be used for making anaglyphs. This subject-matter does not appear in the Specification as accepted.
Patent GB-545853-A (GB)
Title: Improvements in pumps for producing a flow of conducting liquid
IPC: H02K44/04
Filed: 1941-03-26
Abstract: 545,853. Dynamo-electric conducting liquid pumps. GENERAL ELECTRIC CO., Ltd., and DONALDSON, D. H. March 26, 1941, No. 4088. Addition to 528,091. [Class 35] [Also in Group XXVIII] In the conducting liquid dynamo-electric pump of the parent Specification in which mercury is put into motion by arranging it in a channel and subjecting it to an electromagnetic field and passing a current through it the construction is modified to ensure an air-tight connection between the lead-in rings and the pole-pieces. According tc the invention, each of the pole-pieces 1, 2 is sur. rounded by an annular dish-like member 23, 24 joined at its inner end by an insulating layer of enamel and then the two dishes are connected together by means of a sleeve 23 the joint being formed by enamelling or welding. The final joint is made with the dish members filled with water so as not to overheat the juncture between the dishes and the magnets. The construction produces an annular enclosure for the mercury. The insulated magnetic member 3 between which and the insulated pole-pieces the flat guiding spirals 6, 7 are arranged as in the parent Specification may be extended (and slotted at 22) and secured to the sleeve as an additional support for the sleeve. The dish-like members serve as the two supply electrodes.
Patent GB-120330-A (GB)
Title: Improvements in Electromagnetic Brakes used on Winding Gears for Haulage, Lifts and the like.
IPC: B66D5/00
Filed: 1918-03-08
Abstract: 120,330. Waygood-Otis, Ltd., (Otis Elevator Co.). March 8, 1918. Electric and magnetic; force-transmitting mechanism.-Relates more particularly to spring-applied electro-magnetically-released brakes for elevators such as described in Specification 104,229. A dash-pot device is provided adapted to retard only the final part of the release movement of the mechanism so that a quick release is obtained without damage to the electro-magnets and where alternating current magnets are employed undue consumption of current is avoided. Further, a graduated application of the braking pressure is obtained by means of a spring opposed to the application spring, such opposing spring being gradually rendered ineffective through the action of a fluid leak. The brake levers 9 pivoted at 11 and carrying the shoes 13 are connected by arms 7 and pins 6 to pistons 4 connected by pins 3 to the cores 1 of the magnets 2. The application spring 16 is interposed between fixed abutments 17 and members 14 on the levers 9. A cylinder 19 of relatively small bore and containing a piston 20 and spring 21 is connected by pipes 28 with the chambers 26 of the cylinders 5 in which the pistons 4 work. The casing 24 serves as a reservoir for oil or other fluid, and the pipe 28 has a throttled outlet 30 and an inlet with a non-return valve 29 communicating with this reservoir. The chambers 25 of the cylinders 5 are connected by a passage 33 provided with the-throttled outlet 35 and inlet 34 also open to the reservoir 24. Apertures 32 in the walls of chambers 25 are also open to the reservoir 24. When the magnets are energized to release the brakes, fluid is expelled from chambers 25 at first through the apertures 32, and when these apertures are covered, through the throttle valve 35, the final movement only of the cores 1 and parts moving therewith thus being retarded. When the magnets are deenergized to apply the brake, the fluid forced from the chambers 26 by the pistons 4 under the action of the springs 16, passes into the cylinder 19 and compresses the spring 21, the pressure on the brake shoes 13 being correspondingly reduced. The fluid then leaks through the throttle valve 30 and permits the spring 21 to expand so that the full force of the spring 16 gradually becomes effective on the brake shoes. To render constant the amount by which the spring 21 is compressed, irrespective of increase of movement of the mechanism arising from wear of the brake shoes, apertures 31 in the walls of the cylinder 19 are adapted to be uncovered when the piston 20 has travelled a fixed distance. A constant minimum braking pressure rising to a constant maximum is thus ensured.
Patent GB-306033-A (GB)
Title: Improvements in self-locking nuts
IPC: F16B39/284
Filed: 1929-02-07
Abstract: 306,033. Colas, J. E. Feb. 14, 1928, [Convention date]. Locking nuts. - In a lock nut which is made to grip the bolt by the. elasticity of the nut itself, it has a radial slot 2 of the form shown cut in the nut 1, the internal bore of the latter in the unstrained condition being then too small to fit the bolt. A key 3, of oval section is inserted in the slot 2 and when turned by a wrench, opens the nut and allows it to be threaded on to the bolt. When the force is removed from the key, the elasticity of the nut causes it to grip the threads of the bolt tightly.
Patent GB-724937-A (GB)
Title: Bobbin holding arrangement for textile spinning machines and the like
IPC: D01H1/18
Filed: 1953-02-16
Abstract: 724,937. Creel arrangement. SCHIESS AKT.-GES. Feb. 16, 1953 [Feb. 21, 1952], No. 4207/53. Class 120 (2). A creel arrangement wherein a plurality of bobbin holding elements are provided for detachably receiving bobbins, the elements depending from a support or frame and ending in different horizontal planes is characterized by adjacent bobbin holding elements being of different lengths, the difference in length between the shorter and the longer elements equalling at least half the height of a bobbin to be carried by the element. As shown long bobbin holders 1 are arranged adjacent short bobbin holders 2 both types being suspended from a creel frame member 5 by nuts 4. The long and short holders may be arranged alternately in rows longitudinally of a creel board or across the creel board. They may also be arranged in a staggered formation for ease of handling and observing.