baber/WOPTO huggingface dataset:
Patent GB-500896-A (GB)
Title: Improvements in clarifiers for separating solids from liquids by sedimentation
IPC: B01D21/08
Filed: 1937-11-09
Abstract: 500,896. Gravity-separation apparatus. SEIP, J. J. Nov. 9, 1937, No. 30754. [Class 46] Liquid, supplied to the upper portion of a tank 10, Fig. 1, through pipes 13 passes downward through a passage 22 of downwardly - increasing cross-section, formed between the wall of the tank and a bell-shaped member 20, and rises within the bell 20 to a clear liquid outlet comprising a ring pipe 14 with upwardlyextending nipples and connected to a draw-off pipe 29. Solid matter settling on the top of the bell and on the sloping bottom 12 of the tank is removed by scrapers 28, supported by a rotating shaft 24, and directed to a sump 16 with outlet pipe 16. The shaft 24 may support a foam breaker 32, and a scum launder 33 may be provided. Fig. 2 shows apparatus with several bells 20, the lower bells being successively of smaller diameter so that the cross-section of the outer passage increases downwardly. Each bell has its own clear liquid draw-off, pipe 29. Layers of sludge which serve as filters form at the entrances of the spaces between adjacent bells. In a modified form of the apparatus shown in Fig. 2, the bells are attached to the shaft and rotate with it while the scrapers above the bells are fixed. The flanges of the bells may slope inwardly.
Patent GB-388862-A (GB)
Title: Device to support non swimmers
IPC: A41D7/00
Filed: 1932-04-08
Abstract: 388,862. Inflatable garments. BUXTON, D. H. C., 3, 2nd Avenue, Hove, Sussex. April 8,1932, No. 30802/31. [Class 141.] A buoyant garment, e.g. a bathing costume, formed of two thicknesses of material joined together to provide one or more air receptacles, is provided with one or more strips 13 secured as at 23 between the inner and outer walls of the air receptacle, within the confines of the latter, such strips being at the back portion only of the garment and being composed of thin material such as tape doubled over to have a V- or U-section. All the joints at the edges of the air receptacle are of such material. The upper part only of the garment is used as an air receptacle, and is bounded at the lower edge by a circumferential join 12. The lower uninflated part may be omitted. Buttons are attached to tabs.
Patent GB-1521992-A (GB)
Title: Pneumatic tyres
IPC: B60C11/04
Filed: 1975-07-23
Abstract: 1521992 Pneumatic tyre treads MICHELIN ET CIE (Compagnie Generale des Etablissements Michelin) 23 July 1975 [25 July 1974] 30852/75 Heading B7C A pneumatic tyre tread comprises a plurality of blocks defined, and arranged in three circumferential rows, by two circumferentially directed grooves 1, 2, or 21, 22, transversely directed grooves 7-12 or 27-32 and grooves 13 or 33, 34 which are less wide, and no deeper, than the grooves 1, 2 and 7-12, or 21, 22 and 27-32. The blocks may additionally include sizes or incissions 15-17 or 36, and, as in the tread of Fig. 2, cuts 35 may join circumferentially adjacent transverse grooves 31, 32. The width of the grooves 13 or 33 in one or both lateral rows may be greater than that of the grooves 13 or 34 in the central row. The circumferentially directed grooves may be sinuous. The tyre may have a radial carcass reinforcement. The Specification defines "circumferentially directed grooves" and "transversely directed groove."
Patent GB-1119227-A (GB)
Title: Improvements in or relating to the recovery of metals from saline solutions
IPC: C02F1/52
Filed: 1965-07-20
Abstract: Metals are recovered, in the form of metal-protein complexes froman aqueous solution containing dissolved salts of the metals by adding to the solution, e.g. at 60-140 DEG  F., a reagent comprising lower molecular weight proteinaceous compounds produced by the enzymatic degradation of higher molecular weight proteinaceous compounds, to precipitate the complexes, and recovering the precipitate The precipitate may be pyrolysed to remove organic matter.  The aqueous solution may be sea water or a bittern which may be subjected to partial evaporation to obtain one or more yields of sodium chloride which yields are separated before treating the solution with the reagent.  Metals which may be recovered are iron, aluminium, silicon, cobalt, titanium, copper, lead, vanadium, manganese, chromium, germanium, gold, molybdenum, zinc, nickel, silver, magnesium, strontium, calcium and potassium.  The proteinaceous reagent may be recovered from the enzymatic degradation of vegetation composts, bunnus, animal manure, slaughter house by-products, sewage, sewage sludge, garbage, fish by-products and yeasts. Particularly preferred are materials recovered from the composting of waste from grape pressing operations, including seeds and skins, refuse from sugar beets and spinach, alfalfa, weeds, cotton lint, cotton seed hulls and leaves.  The pH of the solution may be adjusted, with ammonium hydroxide, to 6-9.5 before treatment with the reagent.  A mixture of ligrin and the proteinaceous material may be used to form a flocculent precipitate of the metal complexes, tannin then being added to convert the precipitate to a more granular state.  The precipitate may be stabilized by the addition of monommonium and diammonium phosphate after the precipitating agent.  The precipitate is stated to be suitable for use as a fertilizer additive.
Patent GB-248708-A (GB)
Title: Apparatus for sending all kind of objects from aeroplanes to the ground
IPC: B64D1/02
Filed: 1925-12-07
Abstract: 248,708. Soc. Anon. pour l'Exptoitation des Brevets K³nzer, and K³nzer, M. Dec. 7, 1925. Parachutes.-A parachute for landing objects is ejected from its casing 20 by time-controlled mechanism 30, its opening being assisted by airdrafts directed by wings 32 through slots 33 in the casing. The parachute is packed in a chamber 25 the hinged cover 26 of which is held closed against the tension of a spring 28 by a catch 27 controlled bv clockwork mechanism 30. When the catch 27 is released, a plunger 21 is forced upwards by a spring 23 enclosed in three telescopic tubes 24, and ejects the parachute from the mouth of the casing. The load is attached to eyelets 34.
Patent GB-309876-A (GB)
Abstract: 309,876. British Celanese, Ltd., Ellis, G. H., and Olpin, H. C. Nov. 15, 1927. Addition to 258,874. Yarns and threads, treating with liquids.-Tn weighting fibres, yarns, fabrics or other materials made of or containing cellulose acetate or other organic acid esters of cellulose, such as cellulose formate, propionate or butyrate, or made of or containing cellulose ethers, such as methyl, ethyl or benzyl cellulose or the corresponding condensation products of cellulose and glycols or other polyhydric alcohols, by the processes claimed in the parent Specification, the materials are treated simultaneously with the metallic weighting agents and with one or more soluble zinc salts, whereby an increased absorption of the weighting metal is obtained. Zinc salts of high solubility, such as the chloride are preferably employed. The weighted materials have improved dyeing properties and increased resistance to heat treatments, such as ironing. After the absorption of the weighting metal, the goods are preferably washed and may then be subjected to any suitable after-treatments, such as a treatment with phosphate or silicate or other precipitant for the absorbed metal or if desired precipitation may be effected by a simple washing in water containing a little lime or alkali, as described in Specification 279,502. In an example, cellulose acetate woven fabric is steeped for an hour at 25‹ C. in a weighting liquor containing 355 grams of stannic chloride and 355 grams of zinc chloride per litre; the goods are then washed, treated with disodium hydrogen phosphate solution, washed again and soaped; an increase in weight of 7.5 to 10 per cent is obtained. Specifications 270,987 and 272,982 also are referred to.
Patent GB-824493-A (GB)
Title: A method and apparatus for forming fibres from a heat softenable mineral material
IPC: C03B37/05
Filed: 1956-10-11
Abstract: 824,493. Glass wool and the like. OWENSCORNING FIBREGLASS CORPORATION. Oct. 11, 1956 [Oct. 28, 1955], No. 31024/56. Class 56. Mineral, e.g. glass, fibres are formed by delivering the molten material to the surface of a tapered rotary member so that the material moves, under centrifugal force, to the larger end of the member from which it is flung in the form of attenuated streams which are further attenuated by high velocity blast to form fibres. The glass is supplied from a forehearth 10 as a stream S which falls upon a conical member 44 which is connected by webs 60 to an outer conical member 52 integral with an end plate 56 and a perforated cylindrical portion 70, the whole being rotated by a motor 40 and belts 36. The glass clings to the member 44 but is moved by centrifugal force towards the lip 46 which directs it against the conical member 52 for supply as an even layer to the perforated cylinder 70. The blast is supplied by hot combustion products from circumferentially arranged combustion chambers 84 supplied with a combustible mixture from a water-cooled manifold 92 protected by perforated plates 95 in the chambers 84 from a strike-back of the combustible mixture. The combustion products issue, as a blast, from the nozzle 108 and entrain the glass streams issuing from the perforations in the cylinder 70. The fibres are treated by a lubricant, binder or other coating material which is supplied through a stationary central pipe 114 and is projected through a spray-head 116 by compressed air supplied through a concentric pipe 112. The fibres may be similarly treated from the outside by sprays 122. The fibres are deposited on a foraminous conveyer 132 having a suction box 136. In a modification, the stream S is applied to the outside of a small diameter, high-speed, conical rotor, the larger end of which is serrated to break up the material into separate streams for presentation to hot blast from a concentrically arranged combustion apparatus. In another modification, the stream S is directed by a bent shoot into the smaller end of a high speed tapered rotor having a serrated discharge end. The sand rotor may be arranged horizontally or vertically, and in the latter case the stream S is blown against the wall of the rotor by an air jet. A battery of rotors, side by side, may be used to deposit a wide mat of fibres on a conveyer.
Patent GB-900206-A (GB)
Title: Improvements in electromechanical transducers
Inventor: ROBINS ROBERT HILL
IPC: H03H3/04
Filed: 1957-10-03
Abstract: 900,206. Piezo-electric crystals. UNITED INSULATOR CO. Ltd. Oct. 2, 1958 [Oct. 3, 1957 (2)], Nos. 31026/57 and 31027/57. Class 40(8). A thickness mode transducer comprises a piezo-electric body 1 carrying two adherent electrodes 4, 5, one on each of two -opposed surfaces wherein at least one, 5, of the electrodes is applied wholly or partly in grooves 2, 3 in the surface of the body so as to provide at least in the bottom of the grooves an electrode substantially co-extensive with the surface, the grooves and the lands between adjacent grooves being so distributed over the surface that the resonant frequency of the transducer can be adjusted by removing piezo-electric material, with or without electrode material, from the surfaces of the lands without substantially reducing the coupling coefficient. The grooves 2, 3 can be arranged at an angle to each other in mesh pattern and can be arranged in two groups substantially at right angles to each other. In a modification, the grooves 2, 3 can be replaced by a single groove which can be of spiral form. The piezo-electric body 1 can be of hetero-crystalline or of single crystal form, or of ceramic material, e.g. of barium titanate containing 5% of calcium titanate and 0.5% of cobalt oxide, both based on the total weight of the barium titanate and calcium titanate. Both surfaces of the cylindrical body 1 are silvered to give a continuous deposit 4 on the smooth surface and a continuous deposit 5 on the grooved surface, after which the body 1 is polarized. The frequency of the body 1 is adjusted by grinding or lapping the grooved surface, first to remove the metal coating from the lands between the grooves and then to remove ceramic material from the lands. Test results are given. In the modification shown in Fig. 3, the ceramic body 6 is provided with grooves 7 and both surfaces of the body are silvered as in Fig. 1, except that the silvering 9 is continued part of the way up the cylindrical surface of the body 6. The flat surface of the silver coating 9 is provided with a layer of glaze 10 formed by painting on the silver a finely ground ceramic enamel in an organic vehicle which is fired at 650‹ C. The frequency can be adjusted by grinding, lapping or polishing either or both of the top and bottom surfaces of the body 6. As shown, the silver coating on the lands between the grooves 7 has been removed by lapping leaving only coatings 8 in the grooves.
Patent GB-305307-A (GB)
Title: Improvements in cylinders for striking out, setting out, putting out and similar machines
IPC: C14B1/04
Filed: 1927-11-19
Abstract: 305,307. Wilson, J. W. Nov. 19, 1927. Rotating-tool machines.-A cylinder for hide and leather working machines is provided with oppositely-directed sets of blades 1, 2 whose pitch decreases from the centre outwards. The decrease in pitch may be constant, or the blades may have a portion of constant pitch extending outwards from the centre, then a portion of varying pitch, and finally a portion of constant pitch.
Patent GB-311885-A (GB)
IPC: C09K23/00
Abstract: 311,885. British Dyestuffs Corporation, Ltd., Baddiley, J., and Chapman, E. March 30, 1928. Addition to 274,611. Emulsions, making.-The method of the parent Specification, according to which emulsifying agents are obtained from mineral oil fractions by sulphonation and condensation with an alcohol. is modified by conducting the reaction at a temperature of 65 C. or below; the method may be further modified by using chloro-sulphonic acid as the sulphonating agent. The alcohol may be added to the sulphonation mixture or the alcohol and oil may be mixed together and the sulphonating agent then added. In one example, a petroleum fraction obtained by extracting Borneo petroleum with liquid sulphur dioxide is sulphonated with oleum at 60-65' C. and the product is treated with isopropyl alcohol at 60-65 C. after separation of unsulphonated oil and addition of sulphuric acid. In another example, chlorosulphonic acid is added to a mixture of the oil with isopropyl or -n-butyl alcohol and the reaction is effected at 20-25 C. or 50-55 C, respectively.
Patent GB-967607-A (GB)
Title: Separation of highly dispersed organic solids from aqueous suspensions thereof
IPC: C08L25/18
Filed: 1962-08-14
Abstract: Highly-dispersed organic solids from aqueous suspensions thereof can be coagulated by adding water-soluble cationic and anionic polymers to the suspensions using as the anionic polymer one or more substantially linear high molecular-weight polymer sulphonates which correspond to homo-polymers of vinyl monomers containing a sulphonate group.  The anionic charge on the disperse solid is neutralized by addition of one of the polymers and then the other is added.  Anionic polymers exemplified are homopolymers of ethylene sulphonic acid or styrene sulphonic acid. The aromatic nucleus may contain halogen or lower alkyl substituents in addition to the sulphonate group and salts of sulphonic acid may also be used.  Amongst the cationic polymers exemplified are water soluble polyethylenimines and vinyl benzyl quaternary ammonium salts or copolymers of the same. Reference has been directed by the Comptroller to Specification 812,228.
Patent GB-1110020-A (GB)
Title: Method and apparatus for preventing cannibalism in the rearing of tropical fish
IPC: A01K61/17
Filed: 1965-07-22
Abstract: 1,110,020. Fish culture; aquaria. R. G. GIRARD. 22 July, 1965, No. 31308/65. Heading A1A. A device 11 for separating newborn fish from the mother fish comprises a chamber 30 having an exit slot 32 for the newborn fish to pass into a chamber 31 from which they are carried through a pipe 35 into an aquarium 10. Water enters the device through holes 13 and is circulated through the chambers 30, 31 and the pipe 35 by means of a pump forcing air through a tube 38 into the pipe 35 in order to carry the newborn fish into the aquarium. The slot 32 is of such a size as to retain the mother fish in the chamber 30.
Patent GB-787625-A (GB)
Title: Improvements in or relating to raking devices
IPC: A01D78/00
Filed: 1954-10-29
Abstract: 787,625. Side-delivery rakes. VAN DER LELY, N.V., C. Oct. 29, 1954 [Oct. 31, 1953], No. 31340/54. Class 6(3). In a side-delivery rake, of the kind having rake-wheels mounted obliquely on a mobile frame, the frame comprises a pair of beams 19, 20 having mountings 37-42 for the removable reception of rake-wheel cranks, the rear end of each beam being pivoted to a cross-beam 5 carried by a tractor 1, at least one of the pivotal connections being adjustable along the cross-beam. The cross-beam is carried by brackets 4 on the tractor front-axle 2 and the rear ends of the beams 19, 20 are pivoted to sleeves 6, 9, carrying lugs 15, 16 the sleeves being retained on the cross-beam by collars 8, 11, one pair of which are adjustable along the beam 5. The forward ends of the beams carry castors 21, 24 and are interconnected by a bar 30 the beams being locked against lateral swing by a strut 34 engageable with an apertured bar 27 on the beam 19. This beam is longer than the other and has mountings 39, 40 to receive the cranks 45, 46 when the latter, with their rake-wheels 49, 50, are removed from the beam 20. The device then operates as a side-delivery rake only, the strut 34 and castor 24 being removed and the end of the beam 20 being fixed to the bar 27. The cranks are connected by springs 52 to anchorages 53 on rods 54, 55 mounted parallel to the beams and movable axially from the tractor driving-seat, by shafts 57, universal joints 58 and screw-jacks 60, so that the wheels may be raised, for transport, or for reducing their pressure upon the ground. The whole frame may be inverted for reversing the direction of side-delivery and the castors 21, 24 are then reversed in their mountings. More than two beams 19, 20 may be employed but the longest beam is provided with sufficient free mountings to take all the displaced rake-wheels in a single line. Specifications 787,626, 787,627, 787,628 and 787,629 are referred to.
Patent GB-299881-A (GB)
Title: Improvements in or relating to pulsators for milking machines
IPC: A01J5/12
Filed: 1928-10-29
Abstract: 299,881. Aktiebolaget Separator. Nov. 4, 1927, [Convention date]. Vacuum engines. -In milking-machine pulsators wherein the movement of the member J which effects the pulsations is controlled by a pneumatic braking mechanism, t h i s mechanism comprises two chambers U. X entirely shut off from the exterior atmosphere but communicating with each other by a narrow preferably regulatable connection, one of the chambers being bounded by a movable membrane T to which the member J is connected. The connection between the chambers is provided by openings V and by grooves Z, a in the rod J. In the construction shown in Fig. 1, the rod J is secured to a doubleacting membrane B and extended to carry a piston P working within a cylinder R; the passages I, S are connected respectively to vacuum and to the teat cups or a secondary pulsator, and a channel O communicates with the outer atmosphere. With the parts in the position indicated, the chamber C by its port E has been connected to the atmosphere by a slide valve H and the chamber D is connected to vacuum through the port F; the teat cups or the secondary pulsator are or is also connected to vacuum through a passage s. The greater pressure in the chamber C will new cause, the membranes and the rod J to move over towards the right, but owing to the ungrooved portion of the red J coming into engagement with the wall Y this movement is impeded until the grooves a reach the wall when the two chambers U, X are again freely connected. Towards the end of the movement the slide valve is moved over to the right by the engagement of a cross-piece or abutment K with an abutment N. A two-armed lever or rack- and-pinion gearing may be employed to give a considerable movement to the abutment K. The membrane B may be single-acting, a tension spring being used to keep it normally in its position to the right. The chamber U may be of bellows construction and the chamber X be bounded outwardly by a flexible wall. Specification 286,671, [Class 84, Milking &c.], is referred to.
Patent GB-192343-A (GB)
Title: Improvements in feed mechanism for folding machines
IPC: C14B11/00
Filed: 1921-08-24
Abstract: 192,343. Stanley, A. H., (Beacon Folding Machine Co.). Aug. 24, 1921. Affixing by adhesives; tape, ribbon, and like strips, affixing.-Feed mechanism for folding- machines, particularly machines of the kind described in Specification 189,503 for folding binding-strips about the edges of material such as boot and shoe uppers, is provided with means for automatically varying the length of the feed strokes in accordance with variations in the speed of the machine. In the arrangement described, the material rests upon a support 24, Fig. 4, and its edge is intermittently gripped between, and fed forwards by, a pivoted feedpoint 30 and a feed block 41. The feed-point and feed-block are carried by a support 94 which is oscillated about a shaft 96 to effect the feed movement by an eccentric pin 106 on the driving-shaft 66 of the machine. The pin 106 engages a sliding block 104, Fig. 5, carried by the support 94, the block acting to raise the feedpoint 30 against the pressure of a spring 112. The shaft 66 is driven through a clutch controlled by a pedal, the speed of the machine being varied by alteration of the pressure between the faces of the clutch by means of the pedal. The length of the feed strokes is varied by alteration of the eccentricity of the pin 106 by means of a centrifugal governor arrangement. The pin 106 is carried by a shaft 454, Fig. 10, eccentrically mounted within the driving-shaft 66, and carrying a pinion 462 which gears with weighted segments 468 pivoted to the face of a fly-wheel 494 on the shaft 66. The weighted segments are urged outwardly by centrifugal force against the pressure of springs 472, and rotate the shaft 454 relatively to the shaft 66 to an extent varying with the speed of the machine.
Patent GB-1517554-A (GB)
Title: Weighing apparatus
IPC: G01L1/04
Filed: 1975-07-28
Abstract: 1517554 Compensating for hysteresis effects BERKEL GmbH 28 July 1975 [1 Aug 1974] 31416/75 Heading G1W Weighing apparatus comprises movement means 12 e.g. a spring or pendulum balance, operable to measure the load and exhibiting hysteresis effects, a linkage mechanism 21 for application of the load to the movement means, and counterforce means 30 connected to the linkage mechanism and operating in parallel with the movement means, the linkage mechanism including extension means 20 which permit variable extension of the linkage mechanism according to the load such that the hysteresis effect at a portion B of the linkage mechanism is increased, and the counterforce means being connected to that portion of the linkage mechanism to provide a force which varies with movement of that portion so as to reduce the hysteresis error. The hysteresis effect of the extension means 20 at point B produces a force increment in the counterforce means which compensates for the hysteresis effect in the movement means 12. The extension means and the counterforce means may comprise spring or pendulum mechanisms.