baber/WOPTO huggingface dataset:
Patent GB-674657-A (GB)
Title: Improvements in and relating to blowers with axial exhaust
IPC: F04D29/36
Filed: 1950-02-21
Abstract: 674,657. Screw fans NORDISK VENTILATOR CO. AKTIESELSKAB, and KRISTIANSEN, S. H. Feb. 21, 1950, No. 4401/50. Class 110(i) The pivots of the variable-pitch impeller blades of an axial-flow blower carry arms by which they are linked to a member which is axially but not rotatably displaceable in relation to the impeller hub and is rotatably but not axially displaceably connected to a servomotor. Air at a pressure which varies in accordance with pressure, moisture, temperature or other conditions within the locality to or from which the blower supplies or withdraws air, is communicated through an orifice 45 to the interior of a box 39 and causes axial displacement of diaphragms 38, 44 and a member 25 which is journalled by a ball bearing 27 on a shaft 21 so as to transmit the displacement to the shaft while leaving it free to rotate. The pressure is opposed by springs 36 which bear against a yoke 28 carried by the member 25. The shaft 21 passes through the hollow shaft 1 of the rotor and is keyed to it at 23 so as to rotate with it but to be free to move axially. A disc 20 carried by the shaft 21 is connected by a link 19 and crank 18 to the pivot 15 of each rotor vane 13. The range of adjustment is preferably such that the flow can be reversed. The operating mechanism may be placed at the opposite end of the blower. By using the space between the diaphragms 38, 44 as a further pressure compartment, the box 39 may be connected to two localities. More than two localities may be provided for by the use of additional diaphragms. The diaphragms may be of rubber, plastic or metal. The operation may be by manual instead of automatic means, in which case the member 25 may be replaced by a fork engaging an annular groove in the shaft 21.
Patent GB-726442-A (GB)
Title: Improvements in or relating to the preparation of relaxin
IPC: A61K35/54
Filed: 1953-02-17
Abstract: Relaxin of high purity is prepared by treating the ovaries of pregnant animals, with aqueous acid, suitably hydrochloric acid, adding salt to the mixture, separating insoluble material, adding trichloracetic acid to the extract, removing the precipitate of crude relaxin, extracting the latter with aqueous, say 80 per cent., acetone, and precipitating purified relaxin by increasing the acetone concentration.  The residue from the aqueous acetone extraction may be further extracted with an aqueous acetone-hydrochloric acid mixture, to which trichloracetic acid may also be added, and the extract combined with the first extract.  The dried relaxin may be dissolved in water and the solution adjusted to pH 7 and filtered through a sintered glass filter and finally through a filter of a porosity of 1.2 microns or less.  Hydrobromic, sulphuric acid, &c, may be used in lieu of hydrochloric acid.
Patent GB-1129503-A (GB)
Title: Fluid devices
IPC: F15C1/10
Filed: 1967-01-30
Abstract: 1,129,503. Counting element. BENDIX CORP. 30 Jan., 1967 [10 Feb., 1966], No. 4429/67. Heading G4P. A fluid switching device of the kind having a pair of outlets 74, 76 fed alternately from a pressure source 70 in response to pressure pulses transmitted to legs 66, 68 from port 61 under the control of pulses in legs 62, 63, is characterized in that legs 62, 63 are arranged at an angle α to duct 64 so that pulses in legs 62, 63 alone are sufficient to effect switching from outlet 74 to 76, or vice versa, whether or not there is a pulse from port 61.
Patent GB-563791-A (GB)
Title: Improvements relating to sieve brushes
IPC: B07B1/52
Filed: 1943-03-19
Abstract: 563,791. Sifting-apparatus. SIMON, Ltd., H., and BALL, J. S. March 19, 1943, No. 4508. [Class 717] In sieve-cleaning brushes of the type that are automatically traversed by the movement of the sieves, two rows of bristles t are carried by a stock a which is pivotally mounted at b on a carriage c with rollers d running on a rail e. At each end of the traverse, a stop k turns the stock about its pivot, and through a forked member j on the stock, throws over a lever h pivoted at h<1> to an extension g of the carriage. The lever has at its lower end a pin p which throws over a two-armed member m pivoted on the carriage at m<1> so that one of its arms n, o engages the underside of the rail and acts as a one-way clutch permitting movement of the carriage in one direction only. A spring q<1> connects the levers m, h so as to provide a snap or toggle action.
Patent GB-398402-A (GB)
Title: Process for the manufacture of a soap intended more particularly for the preparation of solid or consistent grease
IPC: C11D13/02
Filed: 1933-02-14
Abstract: A barium soap is made by saponifying a fatty substance with crystallized barium hydrate (Ba(OH)2.8H2O), for example, colza oil, tallow or a mixture thereof is heated in an autoclave with the calculated amount of crystallized barium hydrate.ALSO:A soap for use in preparing a consistent grease is made by saponifying a fatty substance with crystalliized barium hydrate (Ba(OH)2.8H2O).  Colza oil, tallow or a mixture thereof is heated in an autoclave under pressure with the calculated amount of crystallized barium hydrate, and the resulting soap is dissolved or emulsified in mineral oil to form a grease.
Patent GB-933551-A (GB)
Title: Improvements in the production of polyolefins
IPC: C08F210/16
Filed: 1959-02-10
Abstract: Polymers of olefins are made by feeding one or more polymerizable olefins in the liquid phase, or dissolved in a hydrocarbon diluent, and one component of a Ziegler-type catalyst, to a reaction zone having the form of a closed loop which is kept filled with liquid, continuously feeding into the reaction zone at a point distant from the point of entry of the olefin feed the other component of the Ziegler-type catalyst, continuously pumping the liquid reaction mixture round the zone, and withdrawing liquid from the reaction zone at such a rate as to keep the volume of liquid in the zone constant. The Ziegler-type catalyst consists of a halide of a polyvalent metal of Group IV, V, or VI, of the Periodic Table according to Mendel<\>eeff, and a metal alkyl such as diethyl and monoethyl aluminium chlorides.  The molecular weight of the polymer can be controlled by incorporating a minor proportion of hydrogen in the monomer feed.  The olefin feed may be ethylene and/or propylene, or ethylene, propylene and dicyclopentadiene, or butene-1, ethylene and propylene, or ethylene and butylene-1, or ethylene, propylene, and octene-1. The Specification includes a flow diagram of the process together with means for recovery of solvent and unreacted monomer.
Patent GB-424186-A (GB)
Title: Improvements in or relating to the decortication of the leaves or leaves and stalks of vegetable plants
IPC: D01C1/02
Filed: 1933-05-15
Abstract: 424,186. Obtaining decorticated fibres. STRAW FIBRES, Ltd., 128, Bishopsgate, London, and TIRAFERRI, L. R., 17, Via Mazzini, Bologna, Italy. May 15, 1933, No. 4613. [Class 120 (i)] The leaves or leaves and stalks of non-retted fibre-yielding plants such as flax, hemp, jute, ramie or rhea, sisal, palm leaf, cactus leaf, or aloe in a weathered and dry condition are subjected to a succession of decorticating actions such as breaking or crushing between rollers, shaking, scutching and teasing, and are moistened by spraying with an aqueous solution of a bactericide and /or germicide after the first and/or after the last decorticating action or between any two such actions. Bichloride of mercury is preferred as a bactericide. Specifications 408,007 and 410,144, are referred to.
Patent GB-1586537-A (GB)
Title: 9-(2,6-dihalobenzyl)-adenines and their production
IPC: C07D473/00
Filed: 1978-02-06
Abstract: Alkali metal salts or alkaline earth metal salts of adenine are alkylated with a 2,6-dihalobenzyl halide and with the production of a mixture of isomers of (2,6-dihalobenzyl)adenines, which consist to at least 70 % by weight of 9-(2,6-dihalobenzyl)adenines. The alkylation is carried out in a solid/liquid or liquid/liquid two-phase system. 9-(2,6-Dihalobenzyl)adenines, which are practically free of 3-isomers, are prepared from the isomeric mixture which is obtained by subjecting this mixture to a transalkylation in the presence of concentrated sulphuric acid and a carbenium ion acceptor. A further process for preparing 9-(2,6-dihalobenzyl)adenines, which are practically free of isomers, is based on first preparing a mixture of isomers of 9-(2,6-dihalobenzyl)adenines and then subjecting this mixture to an extraction with dilute mineral acid and then carrying out a transalkylation in the presence of concentrated sulphuric acid and a carbenium ion acceptor. The 9-(2,6-dihalobenzyl)adenines, which are practically free of 3-isomers, may be used for the therapy and prophylaxis of coccidiosis.
Patent GB-326307-A (GB)
Title: Improvements in moulds for brick and tile making
IPC: B28B7/00
Filed: 1929-02-12
Abstract: 326,307. Wright, S. A. Feb. 12, 1929. Moulds.-A hand mould for bricks and tiles consists of an open cast metal frame 1, preferably of aluminium and with a handle 2, the said frame having its inner faces splayed in a downward direction to facilitate the removal of the mould. In order to limit the movement of the scraper suitable stops 6 are provided on the upper edge of the frame and in the case of tile moulding, upstanding portions 7 may be arranged at one end for use in forming the lugs by which the tile is hung. The upper edges of the frame and stops are provided with strips 5 of hard wearing material. The frame may be employed for special tiles such as " valley " and " hip " tiles.
Patent GB-175654-A (GB)
Title: Improvements in combined antifriction and friction bearings
IPC: B61F15/06
Filed: 1921-01-10
Abstract: 175,654. Florell, Y. March 8, 1919, [Convention date]. Ball, roller, and cylindrical journal bearings.- In a bearing in which an antifriction bearing and a friction bearing are mounted the one upon the other, one or more chambers for lubricant communicate with the friction surface but are completely closed from the antifriction bearing. In a wagon axle-box, a shaft 1 carries a sleeve bearing 3 with Babbitt-metal lining 2. The sleeve 3, which is divided axially, has a conical outer surface carrying the inner race-ring of the antifriction bearing 4, which is clamped in position by a sleeve 5 and screw 6. The conical surface may be replaced by a shoulder. The friction bearing projects axially beyond the antifriction bearing and is visible beyond the casing 7, so that it may be seen which of the two bearings is in action. The casing 7 rests on the antifriction bearing through a layer 10 of a fusible material, so that if the anitfriction bearing runs hot and the layer 10 melts, or the antifriction bearing becomes deformed, the casing moves so that the sides 13, 14 move into engagement with the friction bearing and the whole acts as a friction bearing. Packing 8, 9 is arranged between the sides 13, 14 and the friction bearing, and a packing is inserted between the friction bearing and the shaft. The sleeve 3 has chambers 11, 12 for lubricant communicating with the friction surface.
Patent GB-664243-A (GB)
Title: Artificial teeth and method for forming the same
IPC: A61C13/08
Filed: 1948-02-18
Abstract: 664,243. Artificial teeth. DENTISTS' SUPPLY CO. OF NEW YORK. Feb. 18, 1948 [July 22, 1941], No. 4799/48. Class 81 (ii) [Also in Group V] Artificial teeth having a relatively opaque body portion and a relatively translucent veneer extending incisally beyond the body portion are moulded (see Group V) from plastic material such as acrylics, styrenes, vinyls, phenolic resins and urea resins. Fig. 13 shows such a tooth, a piece of colouring matter 94 being incorporated in the lingual incisal surface and being visible through the veneer from the labial side. An anchoring pin 16 is incorporated in the tooth during moulding. Fig. 12 shows a veneer 91 which has been moulded preparatory to having the body portion moulded on to it, the veneer having three rounded indentations 92 on its inside. When these indentations have been filled with body material the latter shows through the veneer to a greater extent than other body material, thus simulating natural markings; similar effects may be obtained by forming grooves etc. on the inside of the enamel to simulate stripes etc. Glass fibre, glass cloth, metal, wood, plastic material or porcelain, of any colour or degree of opacity or translucency, may be incorporated in the teeth during moulding to simulate natural appearance. The veneer may be of acrylic resin and the body of styrene resin, or both the veneer and the body may be of acrylic resin, the two parts differing in opacity. The Specification as open to inspection under Sect. 91 describes also a tooth formed by making the veneer and body separately, painting or spraying one or both of the contiguous surfaces with solvent or cement, and pressing the two parts together. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specification 660,121.
Patent GB-691820-A (GB)
Title: Improvements in or relating to the preparation of acetals
Filed: 1951-02-28
Abstract: Alkyl acetals are prepared by treating an alcohol with an oxidizing agent in the presence of an alkyl ester of an ortho-acid.  The reaction is preferably carried out in the presence of a solvent, e.g. diethyl ether, benzene and decahydronaphthalene.  An excess of ester may be used as solvent. Preferably the alkyl esters of ortho-silicic or orthoformic acid are used.  Suitable oxidizing agents include chlorine, bromine, nitrogen peroxide, selenium dioxide and chomyl chloride.  The reaction is preferably carried out at temperatures between -30 DEG  and +150 DEG  C.  Hydrogen chloride catalyses the reaction and may be added to the reaction mixture if desired.  In the examples: (a) bromine is added to a mixture of isoamyl alcohol and tetramethyl orthosilicate; on distillation isovaleraldimethylacetal is obtained; (b) bromine is added to a mixture of 1-chlorobutanol-4 and tetramethyl orthosilicate to give g -chlorobutyraldimethylacetal; (c) bromine is added to a mixture of benzal alcohol and tetramethyl orthosilicate in the presence of hydrogen chloride; benzaldimethylacetal is obtained; and (d) bromine is added to a mixture of butanediol and tetramethyl orthosilicate to give a mixture of succindialdehyde tetramethylacetal and monobromosuccindialdehyde tetramethylacetal.
Patent GB-179662-A (GB)
Title: Improved method and apparatus for burning pulverized fuel in furnaces
IPC: F23C99/00
Filed: 1921-02-11
Abstract: 179,662. Caracristi, V. Z. Feb. 11, 1921. Pulverulent-fuel furnaces.-To effect the complete combustion of pulverulent-fuel which is mixed with an initial supply of air to effect ignition and introduced downwardly into the combustion chamber 11 of a boiler furnace through one or more burners 10, supplementary supplies of cold air are admitted through a number of openings 12 arranged at different levels in the front wall of the furnace. Doors or plates 15 regulate the admission of air. Air may be admitted through doors 13, 14.
Patent GB-684012-A (GB)
Title: Improvements relating to the coating of metal propeller blades and other aerofoils
IPC: B64C11/20
Filed: 1951-02-28
Abstract: 684,012. Electrodeposition of nickel. UNITED STATES RUBBER CO. Feb. 28, 1951 [May 4, 1950], No. 4858/51. Drawings to Specification. Class 41. [Also in Group XXXIII] An aluminium or magnesium alloy propeller blade or similar aerofoil sectioned unit is coated with a corrosion resistant metal such as nickel, having an intermediate layer of organically polymeric material such as rubber. The base metal is first coated with a rubber cement, to which is subsequently applied a layer of natural or neoprene rubber compounds. After drying the rubber surface is made tacky by brushing with a resinifying agent and then coated with a conductive powder such as graphite. The surface is then hardened, and polished, and finally coated with nickel in an electrolytic bath. Initial coatings of cadmium, copper, iron, tin, &c. may be applied before the nickel. The nickel bath may contain nickel sulphate (NiSO 4 .6H 2 O) 44, nickel chloride (NiCl 2 .6H 2 O) 4, boric acid 4-5, wetting agent 0.05, paratoluene sulphonamide 0.083 oz. per gall. Saccharin may replace the last component. The nickel is stated to be deposited in a state of expansive stress of the order of 1000-10,000 lbs. per square inch.
Patent GB-245302-A (GB)
Title: Improvements in or relating to wind-screens for motor vehicles and the like
IPC: B60J1/06
Filed: 1925-02-23
Abstract: 245,302. Bach, C. H. Feb. 23, 1925. Windscreens. - Relates to vehicle windscreens of the kind comprising a fixed lower panel 13 and a hinged upper panel 7 and in which a stop or abutment is associated with the frame of one of the panels to arrest the closing movement of the other panel and has a resilient portion to serve as an anti-rattling device. According to the invention, the stop, which is shown as associated with the upper panel 7, is formed by extending at 6<a> the front side of the channel sectioned frame 6, and the rubber or other resilient section 10 is mounted in a block 9 fitting flush within the end of the channel section and secured therein by a screw 11, which passes through the base of the channel and also secures the shank 10<a> of the rubber in the block 9. The stop may, alternatively, be secured to the frame 12 of the lower panel 13.
Patent GB-399091-A (GB)
Title: Rubber hot water bottle
IPC: A61F7/08
Filed: 1933-02-17
Abstract: 399,091. Surgical heating-appliances. BLUM, A., 45, Br³nnerstrasse, Vienna. Feb. 17, 1933, No. 4989. [Class 81 (ii).] A rubber hot-water bottle 1, curved to fit the body, is made to maintain its shape when filled by forming the side walls of curved strips 2, and is provided with flaps 5 to facilitate attachment to the body by bands or straps.
Patent GB-134462-A (GB)
Title: Improvements in and relating to Trailers for Draught Poles of Binding or Reaping or Mowing Machines or the like.
Inventor: TRACEY THOMAS
IPC: A01D75/26
Filed: 1919-02-28
Abstract: 134,462. Tracey, T., and Tracey, J. Feb. 28, 1919. Reaping, mowing, and harvesting machines.- The pole 20 is pivoted to a fixed stub 8 which is supported by a trailing wheel 1. A carrier 5, sliding within cheeks 7, and perforated at 6 for a bolt 10, permits of an adjustment for height of the cutter-bar.
Patent GB-1535613-A (GB)
Title: Apparatus for producing composite panels
IPC: B32B7/08
Filed: 1977-02-08
Abstract: 1535613 Laminates G BROLLO 8 Feb 1977 [30 Sept 1976] 5027/77 Heading B5N An apparatus for the continuous production of prefabricated panels comprises a supply station 1 for a lower 3 and an upper 2 continuous sheet, a train of rollers 8 for shaping at least one sheet to impart a desired profile thereto, a furnace 9 for heating the sheets, a device 10 for injecting expandable plastics material between the sheets, an expansion unit 21 for expanding the plastics material and maintaining the sheets in a predetermined spaced relationship and a cutter 53 for cutting the product into panels, the expansion unit comprising upper 26 and lower 24 link-type conveyers driven to horizontal rollers to engage the outer faces of the sheets and pistons 28 for adjusting the spacing of the conveyers. Means may also be provided to introduce edging strips into the panels.
Patent GB-948768-A (GB)
Title: Improvements in or relating to a wound dressing, tampon or the like hygenic appliance
IPC: A61L15/42
Filed: 1960-02-12
Abstract: Foamed urea or melamine formaldehyde resin in flake or flock foam for use as a wound dressing (see Division A5) is produced by foaming the resin precondensate with a foaming agent and introducing compressed air into an aperture through which the freshly foamed resin is discharged to tear the loamed resin into flocks or flakes.ALSO:A wound dressing or tampan comprises a body-contacting layer of foamed urea formaldehyde or melamine formaldehyde resin or a combination thereof in yieldable condition or in hardened condition as a blow-formed flock.  The resin is foamed by adding to its precondensate, which may contain fibres or a wound treatment agent, a solution of a fatty alcohol sulphonate of sodium or a sodium lauryl sulphonate foamed with air or oxygen, in the presence of a reaction accelerator e.g. phosphoric or oxalic acid.  The freshly foamed resin may be applied directly to a wound by a spray apparatus.  Blow-formed flock is produced by introducing compressed air into the aperture through which the foamed resin is discharged to tear the foam into flocks or flakes. Such flocks or flakes may be coated with a porous film by blowing them through a chamber into which aqueous polyvinyl propionate solution is sprayed.ALSO:Flocks or flakes of foamed urea or melamine formaldehyde resin which are formed by applying compressed air to the freshly foamed resin (see Division A5) are coated with a porous film by blowing them through a heated chamber into which an aqueous solution of polyvinyl propionate is sprayed.
Patent GB-726226-A (GB)
Title: Improvements in control devices for hydraulic motors
IPC: F15B13/01
Filed: 1953-02-24
Abstract: 726,226. Hydraulic machines. BOSCH GES., R. Feb. 24, 1953 [March 12, 1952], No. 5083/53. Class 69 (2). The distributing control valve 5 is connected to the motor 8 by two pipes 6, 7, each containing a valve 21, 31 which opens in the direction of outflow of the fluid from the motor. -Each valve is operated by a spring and by fluid pressure from the opposite pipe, thus closing the appropriate valve if the load is lowering too quickly. In a modification, the valve control pipes 24, 34 are replaced by a single pipe connected to the supply pipe 2 from the pump 1.
Patent GB-490818-A (GB)
Title: Improvements in and relating to cartons and closures therefor
IPC: B65D5/06
Filed: 1937-02-20
Abstract: 490,818. Pliers. GILLINGS, R. H. Feb. 20, 1937, No. 5144. [Class 61 (ii)] [Also in Group XVII] Pliers for clamping a metal clip over the closing edges of a carton are provided with profiled jaws l, m for deforming the clip, and back-plates n, o and, if desired, end-plates (not shown) for ensuring correct registry. One of the clamping jaws may be a bench- or wall. fixture. Reference has been directed by the Comptroller to Specification 449,197, [Group XVII].
Patent GB-525219-A (GB)
Title: Shoe heel
IPC: A43B21/37
Filed: 1939-02-16
Abstract: 525,219. Heels for boots and shoes. PEARSON HEEL MANUFACTURING CO. Feb. 16, 1939, Nos. 5149 and 5150. Convention dates, March 25, 1938 and Oct. 10, 1938. [Class 17 (ii)] Heels for boots and shoes of moulded plastic material are formed with a plurality of openings extending down into the heel from the upper surface to receive heel-attaching nails. The nail openings are formed in a cluster in the usual locality in the heel for such openings so that each nail even though it be deflected from its course will enter a hole. The nails may be barbed and slightly larger than the diameter of the holes, and may be driven hot into the heel. The heel may, as shown, be formed hollow with holes 24 in the upper wall and also a vertical opening 18 extending downwards therefrom and with openings 20, 21 extending upwards from its lower face to form an oblique face 19 and an undercut face 23 under an oblique shoulder 22 to engage and retain corresponding projections on a heel lift 30. The nail openings may be formed in a plurality of webs or ribs extending inward from the inner wall of the heel, with a central hole for a screw, if desired, or the holes may be formed in an inner wall secured to the inner wall of the heel by webs, the holes leading downwards from the bottom of a groove in the web face to deflect the nails into the holes.