baber/WOPTO huggingface dataset:
Patent GB-1181282-A (GB)
Title: Improvements in or relating to Cleaning devices for Threshing and the like Machines
Inventor: HERBSTHOFER FRANZ JOSEPH
IPC: A01F12/44
Filed: 1967-05-19
Abstract: 1,181,282. Rotary sieving apparatus. MASSEY-FERGUSON G.m.b.H. 10 May, 1968 [19 May, 1967], No. 23376/67. Heading B2H. A rotary grain cleaning and separating apparatus for use in a combine harvester comprises a rotary hollow circular screen 5, a grain inlet 8 communicating with the interior of the screen, an outlet spaced axially from the inlet, guide means 6 mounted on the inner peripheral surface of the screen to urge grain from the inlet towards the outlet during rotation of the screen, and an air inlet 9 whereby air may be directed from a blower 16 in a direction from the inlet towards the outlet. The guide means is in the form of a spiral member 6 supported by rods or bars 7. A grid 10 formed of axially extending bars is provided at the outlet end of the screen and its effective length is determined by the position of an axially slidable end cover 11 in which an outlet for air and for chaff and foreign material is provided. The screen is driven by a sprocket 12 engaging a chain 13 surrounding the screen and is supported on two rows of rollers, one of which is shown at 14, disposed axially of the screen. A rotary brush 17 effects continuous cleaning of the screen. The apparatus is mounted in a housing 18 having walls 19 converging downwardly to form a trough 20 in which a screw conveyor 21 carries grain falling from the screen into a grain outlet 22. The screen may be cylindrical, frusto-conical or partly cylindrical and partly frusto-conical. In operation, the grain entering the inlet is thrown by centrifugal force against the screen inner surface and conveyed axially by the spiral guide member 6. The grain falls through the screen into the trough 20, while chaff and other light material are blown axially by air from the blower 16 and carried out through the outlet in the end cover 11. At the outlet end of the screen the grain is thrown against the grid 10 and clean grain falls into the trough 20.
Patent GB-1145997-A (GB)
Title: Improvements in or relating to antifreeze
Inventor: SEPHTON DOUGLAS PETER
IPC: C09K5/20
Filed: 1965-06-02
Abstract: 1,145,997. Antifreeze. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 2 May, 1966 [2 June, 1965], No. 23505/65. Divided out of 1,138,062. Heading C4X. An antifreeze composition comprises a watermiscible alcohol, an alkali metal tetraborate, an alkali metal metaborate, an alkali metal phosphate comprising an alkali metal dihydrogen phosphate, a dialkali metal hydrogen phosphate or a mixture thereof, and a heterocyclic benzocompound with the general formula in which the benzene ring may contain at least one substituent alkyl radical, and either B represents a CSH or CSM group (where M represents an alkali metal atom) when A represents an oxygen or sulphur atom or a NH group, or B represents a nitrogen atom or a CH group when A represents a NH group, the alkali metal tetraborate, alkali metal metaborate, and alkali metal phosphate being present in such quantities that the pH of a 50% by volume solution of the anti-freeze composition in water is not greater than 10À0 and the anti-freeze composition does not form a precipitate on standing at ambient temperature for one month. The benzocompound may be 2-mercaptobenzoxazole, 2-mercaptobenzthiazole, 4-ethyl-2-mercaptobenzthiazole, 2 - mercapto - 4,5 - dimethylbenzthiazole, sodium 2 - mercaptobenzthiazole, potassium 2 - mercaptobenzthiazole, 2 - mercaptobenzimidazole, benztriazole, 4 - methylbenztriazole, 5 - methyl - benztriazole, benzimidazole, 4 - methyl - benzimidazole, 5-methylbenzimidazole, or 5,6-dimethyl-benzimidazole. The borates may be of sodium or potassium; in all the examples the phosphates are of potassium. One example also includes tripotassium phosphate. Anti-foams such as silicone oils, polyglycols, e.g. polyoxypropylene glycols tipped with ethylene oxide, mineral oils, iso-octanol, C 7 -C 9  oxo alcohols, organic phosphates, alkyl lactates and castor oil soaps may be included. The composition may be added to engine cooling water to form a 20 to 60% solution.
Patent GB-599099-A (GB)
Title: Improvements in rakes
IPC: A63B47/02
Filed: 1945-09-13
Abstract: 599,099. Rakes. GALLAGH, G. O'K. DE. Sept. 13, 1945, No. 23605. Convention date, Feb. 24, 1944. [Class 6 (ii)] A foldable rake, particularly for retrieving golf balls, has the head divided into two parts 2 and 3 pivoted at 0. These parts can be folded back to the position 2<SP>1</SP>, 3' by means of the links 7 and 8 connected to the sleeve 6 slidable on the handle 1.
Patent GB-453307-A (GB)
Title: Improvements in or relating to the production of nitrogen or of a nitrogen-hydrogen mixture from ammonia
IPC: C01B21/02
Filed: 1935-08-23
Abstract: Nitrogen or nitrogen-hydrogen mixtures are obtained by passing a mixture of ammonia and air through a chamber occupied, at least partly, by a refractory solid material, e.g. fireclay or alumina brick, maintained at a high temperature, e.g. 1000 DEG  C., by the heat of combustion, so that cracking and combustion occur in one operation.  The refractory material may be coated with a suitable catalyst if desired.  The reaction is started by heating the material by the combustion of, for example, coal gas.  Suitable apparatus comprises a cylindrical chamber having the top and sides lined with refractory material, and having broken refractory material in the central cavity, supported on a horizontal grid. The gases are passed downwardly through the material. Specification 390,870 is referred to.
Patent GB-244210-A (GB)
Title: Improvements in loud speakers
IPC: H04R13/02
Filed: 1924-10-08
Abstract: 244,210. Watkins, A. H. Oct. 8, 1924. Magnetic instruments. - In a loud-speaker in which the magnet system C, D is supported by a strong coil spring E and is held down against this spring by a screw H, the screw H passes through a hole in the table B supporting the magnet system and screws into a nut K integral with or carried by the base a of 'the casing A. The head G of the screw bears downwards upon the table and may be sunk in a recess, therein. Ball bearings g may be placed between the table and the under surface of the head. The screw may be rotated for adjustment by means of a lever arm L which passes out through a slot M in the casing.
Patent GB-576615-A (GB)
Title: Improvements in or relating to centrifugal brakes
IPC: H04M1/315
Filed: 1944-11-29
Abstract: 576,615. Brakes. GENERAL ELECTRIC CO., Ltd., and PUCKETTE, C. C. Nov. 29, 1944, No. 23827. [Class 103 (i)] [Also in Group XXVI] A centrifugal brake for use in impulse sender: of the type used in auto matic telephone systems, is characterized by the U-shaped leaf spring for carrying the weights being of smaller effective cross-section at the tips than at the portions which are subjected to bending during the manufacture of the spring. The spring is thus strengthened at the points where slight cracks are likely to develop, and the ends are left resilient to obtain maximum sensitivity. The width or thickness, or both, may be greatest at the bends or, as shown in Fig. 5, the unbent blank may be apertured at 6, 7 to produce the necessary cross-sectional differences. Specification 518,721, [Group XXXIX], is referred to.
Patent GB-983478-A (GB)
Title: An apparatus for working plastic materials
IPC: B29B7/54
Filed: 1963-06-14
Abstract: 983,478. Mixing by compression ; pug-mills. FARBENFABRIKEN BAYER A.G. June 14, 1963 [June 22, 1692], No. 23849/63. Heading B1C. [Also in Division B5] An apparatus for working plastics materials comprises a smooth rotatable cylindrical roller 7 which co-operates with curved parts 4 to form wedge-shaped gaps 25, the side of at least one of the parts 4 remote from the roller 7 forming part of a worm housing containing a worm 1 with its axis parallel to that of the roller 7, the conveyer space of the worm communicating with the wedge-shaped gap 25, by two bores, one 3 opening into the wide part of the gap at one end of the roller, the other 5 opening into the narrow part of the gap at the other end of the roller. The parts 4, worm housing, and roller 7 may all be heated. Conveyer grooves 6 on the surface of the part 4 convey the material between the inlet 3 and outlet 5 apertures. The whole apparatus may be surrounded by a closed housing and used at either above or below atmospheric pressure. Specification 859,959 is referred to.
Patent GB-1455685-A (GB)
Title: Movable roof assembly for a motor vehicle
IPC: B60J7/22
Filed: 1975-06-03
Abstract: 1455685 Vehicle roofs DR ING hoF PORSCHE AG 3 June 1975 [10 June 1974] 23900/75 Headings B7B and B7J In a vehicle roof aperture 5 accommodating a movable roof 4 a pivotable transverse spoiler 6 is biased from a horizontal roof engaging position to an upright position. As shown in Fig. 1 the spoiler, of plastics or rubber material, comprises a guiding portion 9 connected through a strip hinge 10 to a mounting portion 8 positioned in a channel 7 of the roof frame 2. In an alternative embodiment, Fig. 5, a control lever moves the guiding section 19 into the horizontal position before a slidable roof 18 is moved into the closed position H.
Patent GB-1483871-A (GB)
Title: Catalysts and catalytic processes
IPC: C08F4/00
Filed: 1975-06-03
Abstract: 1483871 Polymerisation catalyst AMERICAN CAN CO & SKELLY OIL CO 3 June 1975 [13 June 1974] 23949/75 Heading B1E [Also in Division C3] A catalyst for the polymerisation of olefines is prepared by dispersing on a finely divided, difficultly reducible, inorganic support material a chelate of chromium or a compound thereof with a beta-dicarbonyl compound the chelate having the formula:  wherein m is 1, 2 or 3, n is 0, 1 or 2, (m+n) is 2 or 3, the or each R is individually selected from hydrogen atom and alkyl, alkenyl, aryl, cycloalkyl and cycloalkenyl radicals and combinations of these radicals and contains 0-20 carbon atoms and a corresponding valence-satisfying number of hydrogen atoms R<SP>1</SP> is selected from alkylene, alkenylene, arylene, cycloalkylene and cycloalkenylene radicals and combinations of these bivalent radicals and contains 1-20 carbon atoms and a corresponding valence-satisfying number of hydrogen atoms, and X is an atom or group which is electronegative relative to chromium, and activating the resulting mixture by heating to and at an elevated temperature in a non- oxidizing atmosphere provided by an inert gas, a reducing gas or a vacuum. In examples 1-9 and 11 ethylene is polymerised using catalysts prepared from silica gel, calcined silica, titania or silica-alumina impregnated with solutions of chromium acetylacetonate or benzoylacetonate in benzene or toluene and then treated as above, and propylene was similarly polymerised in example 10. In examples 12 & 13 the catalyst is prepared by dry mixing the chelate and the support; in examples 15 and 16 ethylene was copolymerised with -hexene-1 and butene-1 respectively and in example 17 ethylene was polymerised in the presence of hydrogen.
Patent GB-450199-A (GB)
Title: Improvements in and relating to locking devices for bicycles and the like
IPC: B62H5/14
Filed: 1935-08-27
Abstract: 450,199. Locking bicycles &c. JOHANSEN, A. C., 4E, Vester Farimagsgade, Copenhagen, and CARLSEN, E., 7A, Bille Brahesvej, Frederiksberg, both in Denmark. Aug. 27, 1935, No. 23964. Convention date, Aug. 28, 1934. [Class 79 (iii)] [See also Group XI] A theft-preventing device for bicycles and the like comprises a lock housing 16, attached to the front fork 1 by plates 2 and containing a slidable pin 9 controlled by a permutation or other lock 11-13, the pin serving to secure front wheel locking means 4 in operation and also to prevent removal or unauthorized lighting of an electric lamp 18. The wheel locking means comprises tubular extensions 5 of the housing 16 curved to circular form to enclose the wheel rim and containing a curved bolt 4 adapted, by means of a knob 7 to be shot between the spokes, being retained in this position by engagement of the pin 9 in a recess 8 therein, as shown in Fig. 2. The lamp 18 is formed with a tubular stem 19 containing a dry battery 20 and adapted to be inserted in a tubular boss or socket 17 forming part of the lock housing 16, the pin 9 passing through holes in the sides of both tubular members 17 and 19, a contact member 30 on the pin also serving to close the lamp switch 29 when the pin is partially withdrawn to release the wheel lock 4. The locking means in the upper end 10 of the housing comprises fixed rings or discs 11 alternating with discs 12 rotatable by means of finger grips 13, grooves or recesses being formed in the discs to give passage, when properly aligned, to projections 14 on the pin 9. Key-operated locking mechanism may be substituted for that shown.
Patent GB-698158-A (GB)
Title: Improved process for the manufacture of artificial products dyed with vat dyes
IPC: D06P1/22
Filed: 1951-10-15
Abstract: In the manufacture from viscose of artificial filaments, films and like products coloured with vat dyes, a purified, free, alkali-soluble leuco compound of a vat dye is added to a viscose solution and becomes oxidized during or after the manufacture of the filaments, etc., from the solution.  The free leuco compound is prepared by reducing a vat dye, e.g. an indanthrene dye or Caledon Jade Green XN, by known methods, such as with hot alkaline sodium hydrosulphite, and then precipitating the free leuco compound with acid, e.g. formic or acetic acid.  The precipitate is removed and purified by washing with water or by dialysis.  Any wetting or dispersing agents present in the original vat dye must be removed or inactivated; for example, anion-active compounds are inactivated by adding a cation-active substance.  The purified leuco compound is dispersed in water and dissolved in the viscose solution, preferably with the exclusion of oxygen, e.g. under nitrogen.  The mixture of leuco compound and water may be injected into the viscose solution a short time before spinning.  Examples are given.
Patent GB-1310866-A (GB)
Title: Method for encapsulation of hydrophobic materials
IPC: C09C3/10
Filed: 1971-04-19
Abstract: 1310866 Encapsulating hydrophobic materials NIPPON CHEMICALS CO Ltd 19 April 1971 [21 Aug 1970] 24159/71 Heading B8C [Also in Division C3] Hydrophobic materials are encapsulated by dissolving a mixture of a urethane prepolymer and epichlorohydrin in a hydrophobic liquid, dispersing the resultant admixture in droplet form in an aqueous solution containing a dissolved polyamine and subjecting the resultant dispersion to an interfacial polymerization reaction at a temperature of 25‹ to 60‹ C. for from 20 minutes to 10 hours. Preferably the amount of epichlorohydrin is 5 to 30% by weight of the prepolymer, the amount of the resulting mixture is 10 to 50% by weight of the hydrophobic liquid and the polyamine is used in an amount exceeding the stoichiometric amount required for reacting with the urethane prepolymer and epichlorohydrin. The hydrophobic liquid may be, for example, castor oil, lemon oil, spindle oil, gasoline, benzene, toluene, cyclohexane, oleic acid, dibutylphthalate and carbon tetrachloride. An emulsifier may be contained in the aqueous solution containing a polyamine.
Patent GB-659695-A (GB)
Title: Process for producing fast dyeings
Filed: 1949-09-21
Abstract: 2-Oxynaphthalene sulphonamides in which the amino group may be substituted by one or two alkyl or oxyalkyl groups containing not more than 8 carbon atoms in all, are prepared by acylating the 2-oxynaphthalene-sulphonic acid, e.g. with p-toluene sulphonyl chloride, treating with a phosphorus chloride to produce the corresponding sulphonyl chloride, and then reacting with ammonia or an amine.  2-Oxynaphthalene-6-sulphonamides may be prepared by reacting with ammonia or an amine, 2-oxynaphthalene-1-carboxylic acid-6-sulphonyl chloride obtainable by the action of chlorosulphonic acid on 2-oxynaphthalene-1-carboxylic acid, and then removing the carboxyl group by heating in a weakly alkaline medium.ALSO:Textile materials are dyed by the single bath chroming process using a dyestuff free from carboxylic and sulphonic acid groups and of the formula <FORM:0659695/IV (c)/1> wherein R is a benzene residue containing a hydroxyl group in the ortho-position to the azo linkage, <FORM:0659695/IV (c)/2> is the residue of a 2-oxynaphthalene sulphonamide bound to the azo linkage in the 1-position, and X and Y each represent a hydrogen atom or an alkyl or oxyalkyl group and together contain not more than 8 carbon atoms.  Other substituents may be present in the dyestuff, e.g. alkyl, alkoxy, acylamino, halogen and nitro groups.  The sulphonamido group may be in the 3-, 4-, 5-, 6- or 7-position, but is preferably in one of the b -positions.  The dyes may be prepared by coupling the ortho-oxy-diazo compound of the benzene series with the oxynaphthalene sulphonamide in an alkaline medium.  In an example, 2-oxynaphthalene-6-sulphonamide is dissolved in potassium hydroxide and coupled in phe presence of sodium carbonate with diazotized 5-nitro-4-chloro-2-amino-1-oxybenzene.  Other suitable components are specified.  The dyeing is carried out by entering the wool into a bath containing the dyestuff together with potassium chromate, ammonium sulphate and sodium sulphate.  Acetic acid is added to complete the dyeing.  A valuable black dyeing is obtained by using a mixture of 3 parts of the dyestuff 5 - nitro - 2 - amino - 1 - oxybenzene --> 2 - oxynaphthalene - 6 - sulphonamide and 1 part of 4 - nitro - 2 - amino - 1 - oxybenzene --> 2 - oxynaphthalene-6-sulphonamide. p
Patent GB-920494-A (GB)
Title: Improvements in disc brakes
Inventor: BUTLER HENRY JAMES
IPC: F16D65/58
Filed: 1958-07-29
Abstract: 920,494. Disc brakes. DUNLOP RUBBER CO. Ltd. July 16, 1959 [July 29, 1958], No. 24309/58. Class 103 (1). A disc brake of the kind wherein pads of friction material are applied to a restricted area of the disc 1 comprises friction pads 8a which are applied to the disc as a result of pivotal movement of the levers 6 about their mountings on screws 27. The movement of the levers 6 towards the disc is caused by the effect of balls 16 in ramps on a member 15 which is rotated to apply the brake by the movement of a fluid-pressure operated piston 10b in a cylinder 10a, pressure being applied to the lever 6 on the far side of the disc through the screwed rod 11 to the end of which is screwed a thrust cap 14. Movement of the levers 6 in a direction to move the friction pads away from the disc is produced by spring wire members 26 located between pins 31 on the one hand and the boss for screws 27 on the other.
Patent GB-1073966-A (GB)
Title: Improvements in and relating to polyesters
IPC: C08G63/42
Filed: 1964-06-12
Abstract: Polyesters containing unreacted 1,2-epoxy groups are prepared by the reaction of a polyester formed from a polycarboxylic acid and a molar excess of a polyhydric alcohol, containing unreacted carboxyl groups, and at least one mole per unreacted carboxyl group of a nonphenolic polyepoxide derived from the epoxidation of an olefinic alicyclic compound and containing more than one 1,2-epoxy group per molecule. The polyester preferably has an acid number of at least 5, and may be derived from, e.g. polycarboxylic acids: adipic, succinic, phthalic, isophthalic, terephthalic, diglycolic, oxalic, sebacic, azelaic, malic, glutaric, diphenic, maleic, fumaric, chlorendic and tetrachlorophthalic acids, polyhydric alcohols: ethylene, 1,2-propylene, trimethylene, diethylene, triethylene, dipropylene, neopentylene, polyethylene glycols and 1,4-butanediol, 1,5-pentanediol, trimethylolethane, glycerol, 1,2,6-hexane triol, pentaerythritol, sorbitol, methyl glucoside, mannitol.  Minor amounts of mono-basic acids, e.g. benzoic, oleic, linoleic, linolenic, palmitic and stearic acids, may be included in the polyester, or oils, e.g. coconut, soybean and linseed oils, or copolymerizable monomers, e.g. acrylic or methacrylic esters, acrylonitrile, or olefines.  The polyepoxide preferably contains at least 2 epoxy groups, and may be obtained by epoxidation of alicyclic olefines by oxygen and a metal catalyst, by perbenzoic acid, by acetaldehyde monoperacetate, or by peracetic acid. Suitable epoxides are of the formulae (1) Z.(CH2)n.OOC.Z or (2) Z.(CH2)nOOC.(CH2)n. COO.(CH2)n.Z or (3) <FORM:1073966/C3/1> or <FORM:1073966/C3/2> or (4) Z.(CH2)n.O.(CH2)n.Z, wherein Z is a 3,4-epoxy cyclohexyl group, which may be substituted by alkyl groups having up to 8 carbon atoms, n is a small integer, preferably 1-8, and (CmH2m- 1O) and (CmH2m- 3O2) are mono- and di-epoxy groups containing 8-16 carbon atoms. The compounds (2) may be prepared by reduction of the Diels-Alder adduct from crotonaldehyde and butadiene, reaction of this with a dicarboxylic acid, and epoxidation of the product; the compounds (3) by the epoxidation of the 3-cyclohexenylalkyl ester of an unsaturated acid; and the compounds (4) by the epoxidation of the unsaturated alicyclic ethers.  The reaction of the polyester with the polyepoxide is usually conducted at 250-500 DEG  F.  In Examples [1-5] a polyester from adipic and azelaic acids and excess 1:4-butanediol is reacted with 3:4-epoxy-6-methyl-cyclohexyl-methyl 3:4-epoxy-6-methyl-cyclohexane-carboxylate, 3:4-epoxy-cyclohexyl-methyl 9:10-epoxy palmitate, 3:4-epoxy-cyclohexyl-methyl - 9:10:12:13 - diepoxy stearate and bis-(3:4 - epoxy - cyclohexyl - methyl) sebacate; in Examples [6 and 7] polyesters from isophthalic and sebacic acids with excess 1:4-butanediol and trimethylolethane and from coconut fatty acid, p-tert-butyl-benzoic acid, phthalic anhydride and excess trimethylolethane are reacted with the first of the above diepoxides. Uses.-Coatings, primer for vinyl plastisols and polyethylene.
Patent GB-409193-A (GB)
Title: Improvements in or relating to radio and like receivers
IPC: H03G5/26
Filed: 1933-09-04
Abstract: 409,193. Valve circuits for wireless reception; impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.- (Assignees of Roberts, W. van B. ; 155, Hodge Road, Princeton, New Jersey, U.S.A.) Sept. 4, 1933, No. 24490. Convention date, Sept. 29, 1932. [Classes 40 (iii) and 40 (v).] The amplification and selectivity of a radio &c. receiver are automatically and simultaneously controlled by electro-mechanical means. As shown, a moving coil galvanometer 2, Figs. 1 and 2, traversed by the anode current of the detector valve 3 rotates an earthed shaft 1 to a position depending on said current, a restoring force being provided by a spring S. The shaft 1 carries vanes C, V1., V2, the-first of which varies the capacity of a condenser 10 and thereby the balance of a bridge type aerial input circuit to vary the input signal strength, while the others detune the intervalve circuits 5<1>, 31 respectively by reducing their effective inductance. The shapes of vanes VI, V2 are preferably different so as to detune their associated circuits by different amounts and they may produce detuning effects by varying the grid to earth capacity. Electrical or mechanical damping is applied to the moving system to make it dead beat or overdamped. In a modification, coupled tuned circuits are used in pairs as input and intervalve couplings, the input coupling comprising circuits C1, C2, Fig. 3, inductively coupled and the former inductively coupled to an aerial circuit. One side of each circuit is earthed while the other side of circuit C1 has connected to it an electrode 51 co-operating electrostatically with a vane V on the control shaft 1 which in approaching electrode 51 reduces the natural frequency of circuit C1, increases the natural frequency of circuit C2, by lowering its inductance, and reduces the effective coupling between the circuits. In a modification of Fig. 1, the intervalve circuits are tuned by variable inductances and the control vanes vary the capacity across said circuits. The action of the automatic control means may be controlled by a variable resistance 2<1>, Fig. 1, shunting the galvanometer 2.