baber/WOPTO huggingface dataset:
Patent GB-777465-A (GB)
Title: Improvements in or relating to pyrimidine derivatives
Inventor: HOLLAND ANTHONY
IPC: C07D239/26
Filed: 1954-05-07
Abstract: The invention comprises substituted pyrimidines of the general formula <FORM:0777465/IV(b)/1> and esters and salts thereof wherein R represents hydrogen or an alkyl group containing up to 6 carbon atoms, and the preparation thereof by reacting the corresponding 2-methylpyrimidine with benzaldehyde in the presence of zinc chloride to form a corresponding 2-styrylpyrimidine which is then oxidized to form the 2-carboxylic acid group, e.g. with potassium permanganate in aqueous medium.  The above process may be modified in that the 2-methylpyrimidine reactant is obtained by the dechlorination of 4,6-dichloro-2-methylpyrimidine unsubstituted in the 5-position or substituted in the 5-position by an alkyl group containing up to 6 carbon atoms, e.g. by means of a palladium catalyst in the presence of magnesium oxide.  The desired acid is preferably isolated as a sparingly soluble metal salt, e.g. a copper or silver salt, which may then be converted into the free acid and its esters or into other salts such as those of nitrogenous bases. In the examples: 4,6-dichloro-2-methyl-pyrimidine is shaken with magnesium oxide and palladized barium sulphate in the presence of water and hydrogen to form 2-methylpyrimidine, the 2-methylpyrimidine is heated with benzaldehyde and fused zinc chloride and then treated with hydrochloric acid to form 2-styrylpyrimidine which is oxidized with potassium permanganate in aqueous pyridine.  The desired pyrimidine-2-carboxylic acid being isolated as the copper salt from which the free acid may be regenerated; (2) 2-styrylpyrimidine is oxidized as in (1), the pyrimidine-2-carboxylic acid being isolated as the silver salt which is reacted with methyl iodide to form the methyl ester; (3) the procedure of Example 1 is followed to form 2,5-dimethylpyrimidine from 4,6-dichloro-2,5-dimethylpyrimidine using palladized charcoal as the dechlorination catalyst, 2-styryl-5-methylpyrimidine and 5 - methylpyrimidine -2- carboxylic acid; (4) methyl 5-methylpyrimidine-2-carboxylate is prepared from 2-styryl-5-methylpyrimidine as in (2).  The Provisional Specification refers to compounds of the above general formula in which R represents hydrogen or any alkyl group, and the preparation thereof by the above processes.
Patent GB-364986-A (GB)
Title: Aeroplane with vertically oscillatable wings
IPC: B64C33/02
Filed: 1931-05-06
Abstract: 364,986. Machines with vibratory wings. KERN, H., Tellnitz, Bohemia, Czecho-Slovakia. May 6, 1931, No. 13424. [Class 4.] A machine with a tractor propeller 4 has vibratory wings 14, fitted with louvres 16, pivoted at the edges of planes 15 and connected by links 11 to cranks on fore and aft shafts 9. There are two shafts 9 on each side of the machine driven by bevel gear 8 from a transverse shaft 7 adapted to be clutched to a shaft carrying a worm wheel 6a engaging a worm 6 on an inclined shaft 5 of the engine. The planes 15 may be tiltable about the axis of the shafts 7. The louvres 16 have stops to limit their opening.
Patent GB-216898-A (GB)
IPC: F16H35/00
Filed: 1924-05-31
Abstract: 216,898. Technova Technische Industrie-und Handels-Ges., and Graw, A., Graw, E., and Graw, M., (Representatives of Graw, H.). June 1, 1923, [Convention date]. Propelling and steering by paddle wheels.-A device for producing oscillating motion of varying form and amplitude, applicable for steering and propelling ships, comprises a paddle or vane F, Fig. 1, pivoted by a cross-pin a to a fork b on a shaft W<1>. Arms f at right-angles to the pin a slide in annular groove in a ring A supported by a spider d connected to a hollow shaft W<11>. Guide-bars g on the ring B engage the shaft W<1> and prevent the ring B from oscillating about an axis y, but permit oscillation about an axis x. The shafts W<1>, W<11> are rotated by pulleys r\ r<11>. In the position shown, if the shaft W<1> alone be rotated, the vane rotates on its axis and at the same time sweeps in a conical path at one side of the vertical. If with the vane at right-angles to the position shown the shaft W<11> alone be rotated, the vane swings in its own plane. If when the ring B is adjusted to a horizontal position the shaft W<1> be rotated, the vane merely rotates on its own axis. When both shafts are rotated at the same speed the path of the vane is a figure-of-eight, as represented by the diagram Fig. 5. Fig. 7 shows a modification in which the vane F is carried bv a fork h connected to pivots on the outside of a casing, a four-armed spider f, f<1> working on the same pivots inside the casing. To the arms f is pivoted a ring B<1> running on ball-bearings around a ring B<11> which is pivoted at S to a ring A' running on ball-bearings around an inclined ring A<11> on a hollow shaft W<11>. A bridge-piece i pivoted on a central shaft W<111> drives the ring B". The movements produced by rotating the shafts W<1>, W<11> are. similar to those in the case of the form shown in Fig. 1. Rotation of the shaft W<111> causes the vane to swing in its own plane and the amplitude of this swing can be varied by turning the shaft W<11> at the same time.
Patent GB-1065832-A (GB)
Title: Process for granulating perborate
IPC: C01B15/12
Filed: 1964-04-01
Abstract: Sodium perborate "tetrahydrate"  NaBO2.H2O2.3H2O  is heated to give NaBO2.H2O2.nH2O where n is 0-2.8, and then granulated by spraying the material while in motion with a solution of a binder containing at least sufficient water to reform the tetrahydrate, e.g. 1-3 moles per mole perborate.  Suitable binders are carboxymethyl celluloses, polyvinyl pyrrolidon, polyacryl or polymethacryl carboxy compounds, sugar, polyvinyl alcohols, or dextrin.  The material may be sprayed in an inclined rotary tube.  The solution may also contain a dyestuff and a stabilizer, e.g. a Mg compound. Particles greater than 2 mm. may be removed in a vibratory sieve and milled.  Particle size distribution, bulk density, and per cent active oxygen are specified.
Patent GB-817890-A (GB)
Title: Improvements relating to sealing arrangements for fuel-injection pumps
IPC: F02M59/44
Filed: 1958-04-29
Abstract: 817,890. Stuffing-box substitutes. DAIMLERBENZ A.G. April 29, 1958 [May 22, 1957], No. 13516/58. Class 122 (5). An arrangement for sealing the plungers of a plunger-type fuel-injection pump by means of aerating fluid comprises means for regulating the pressure of the sealing fluid automatically in dependence on the fuel-feed pressure. As shown, a piston-type valve 19 is centrally mounted in the pump housing 10 and is secured to a diaphragm 16 which, on one side, is subjected to the fuel feed pressure in an inlet chamber 22 and, on the other, to the pressure of the sealing fluid, such as oil, within a chamber 29, the fuel pressure being increased by a spring 21. The valve 19 is provided with a port 20 which, when the diaphragm is acted upon by the fuel pressure, partially aligns with a sealing fluid inlet passage 27 thereby allowing the sealing fluid to flow through a bore 28 in the valve to the chamber 29 from whence it is distributed through bores 31 to annular grooves surrounding the pump plungers. Increase in fuel pressure causes the port 20 to allow more oil into the chamber 29 until a pressure balance is reached.
Patent GB-471853-A (GB)
Title: Improvements in or relating to centrifugal governors
IPC: F16D43/18
Filed: 1935-12-10
Abstract: 471,853. Speed governors. POTTS, H. E. (Monopower Corporation) Dec. 10, 1935, No. 13517/37. Divided out of 471,797, under which a Specification was laid open to inspection under Sect. 91 of the Acts, June 11, 1936. [Class 57] A centrifugal governor comprises weights 131 guided radially upon the arms of a spider 132 and loaded by springs 133. The sides of the weights are inclined at different angles 135, 136 and engage with an axially slidable member 83 having similar inclinations. The abutment 83 is loaded by springs 134, 288 and the arrangement is such that the weights 131 expand against the loading of the springs 133, 134 when the surfaces 135 engage and a dwell then occurs until the engagement of surface 136 moves the abutment against the loading of the springs 133 and 288. The governor is applicable for use in automatic change-speed gear. The Specification as open to inspection under Sect. 91 comprises also subject-matter described in Specification 471,797. This does not appear in the Specification as accepted.
Patent GB-196493-A (GB)
Title: Improvements in closed vehicle bodies
IPC: B60J7/11
Filed: 1922-05-13
Abstract: 196,493. Standard Motor Co., Ltd., and Maudslay, R. W. May 13, 1922. Opening tops.-In vehicle bodies in which the sides and framework of the top are permanently in place and an aperture in the roof is adapted to be closed by a detachable or sliding lid and has each edge provided with an upstanding flange or its equivalent, a filling-in piece L, Fig. 1, of roughly triangular section is placed along the outside of the flange C. The piece L stands ashigh as the flange C and extends to the edge of the roof, parts L<2> being cut away and provided with drains L<3>. A packing strip H, Fig. 3, may replace the flange, the lid G being held thereon against the action of a spring J by a catch K. Specification 191,272 is referred to.
Patent GB-659461-A (GB)
Title: Improvements in manufacture of sulphamethazine
IPC: C07D239/69
Filed: 1949-05-20
Abstract: Unreacted sulphaguanidine is recovered from a mixture of sulphamethazine, sulphaguanidine and impurities, obtained by condensing sulphaguanidine with acetyl acetone, by dissolving the mixture in hot dilute aqueous ammonium hydroxide and then cooling to precipitate the sulphaguanidine.  The solution remaining after filtering off the sulphaguanidine is acidified to a point at which there is no undissolved material present and then neutralized with ammonium hydroxide to precipitate the sulphamethazine.  In examples: (1) a reaction mixture obtained by condensing sulphaguanidine with acetyl acetone is dissolved at 70 DEG  C. in dilute aqueous ammonia, filtered hot, cooled to 20 DEG  C. to precipitate the sulphaguanidine, and the filtrate is then acidified to obtain a clear solution, stirred with decolorizing carbon and neutralized with ammonia to precipitate the sulphamethazine; (2) a reaction mixture obtained by condensing sulphaguanidine hydrate with acetyl acetone is steam distilled and the aqueous residue filtered hot to remove the sulphamethazine; the crystals obtained on cooling the filtrate are dissolved in hot dilute ammonia, the solution cooled to deposit sulphaguanidine, and the mother liquor acidified, partly neutralized with ammonia to pH 1.8 to precipitate impurities and then neutralized with ammonia to precipitate sulphamethazine; (3) a similar reaction mixture is dissolved in hot dilute ammonia, cooled to precipitate sulphaguanidine and the mother liquor neutralized to precipitate sulphamethazine; and (4) a similar reaction mixture is dissolved in hot dilute ammonia, filtered, cooled to precipitate sulphaguanidine, the mother liquor acidified and treated with decolorizing carbon and then neutralized to precipitate sulphamethazine.
Patent GB-1387234-A (GB)
Title: Sensitized electrophotographic layers
IPC: G03G5/09
Filed: 1973-03-21
Abstract: 1387234 Methin dyes AGFA-GEVAERT AG 21 March 1973 [23 March 1972] 13531/73 Heading C4P [Also in Division G2] Dyestuffs of formula  or formula are made by the condensation of compounds of the formula or formula  with a thiazole aldehyde of formula wherein R<SP>1</SP> is an aliphatic, cycloalkyl or aryl group; R<SP>2</SP>, R<SP>4</SP> and R<SP>8</SP> are H or an aliphatic or aryl group; R<SP>3</SP> is a group of formula SR<SP>9</SP> or NR<SP>10</SP>R<SP>11</SP>; R<SP>5</SP>, R 6  and R<SP>7</SP> are H or an aliphatic, aryl or carbalkoxy group or R<SP>5</SP> plus R 6  are the atoms to complete a benzene or naphthalene ring; R<SP>9</SP>, R<SP>10</SP> and R<SP>11</SP> are an aliphatic or aryl group or R<SP>10</SP> plus R<SP>11</SP> are the atoms to complete a heterocyclic group which contains 5- or 6- membered heterocyclic ring; m and n are 0 or 1; "Anion" is any anion but is absent if a betaine is present and Z is the atoms to complete a heterocyclic group containing a 5- or 6- membered heterocyclic group. The condensation may be performed in the presence of a trialkylamine in ethanol or acetic anhydride or phosphorus oxychloride in glacial acetic acid. In the dyestuffs exemplified the substituents are R<SP>1</SP> = methyl, ethyl or allyl; R<SP>2</SP> = H, methyl or phenyl; R<SP>4</SP>=methyl or ethyl; R<SP>5</SP>, R 6  and R<SP>8</SP>=H; R<SP>7</SP>=phenyl; R<SP>9</SP> and R<SP>10</SP>=methyl; R<SP>11</SP>=methyl or phenyl; the Anion = perchlorate, iodide, methysulphonate or tolylsulphonate and Z = benzthiazole, indole, benzoxazole, pyrimidone, pyrimidthione, quinoline, quinoxalinoimidazole or phenyloxadiazole.
Patent GB-135415-A (GB)
IPC: F24B1/188
Abstract: 135,415. Iliff, F. April 12, 1919. Open fire-places; air-heating stoves; grates.-An air-heating stove of the kind which causes an inflow of heated fresh air and an outflow of foul air comprises an approximately semi-annular chamber f<2> heated by a removable fire-grate c. The air enters by an inlet f, and passes round the sides of the fire-place to outlets f<3>. Foul air enters by passages e<1> beneath these outlets, and passes up flues e<2> surrounding the air-heating chamber f<2> and the flue d, and finally into the atmosphere together with the products of combustion. The grate c, the ash-pan, and the front c<1> are made as or combined together to form one removable piece. Specifications 123,493, [Class 25. Chimneys &c.], and 126,232 are referred to.
Patent GB-950054-A (GB)
Title: Improvements in or relating to web-fed printing machines
Inventor: DYKE LESLIE ALEXANDER
IPC: B41L1/00
Filed: 1960-04-05
Abstract: 950,054. Punching machines. FORMMASTER Ltd. April 5, 1960, No. 13559/63. Divided out of 950,053. Drawings to Specification. Heading B4B. [Also in Division B6] The subject-matter of this Specification is included in that described in Specification 950,053, but the claims are concerned with the arrangement and operation of the punching and perforating units.
Patent GB-1183571-A (GB)
Title: Improvements relating to X-Ray Apparatus
Inventor: GROOS LAMBERT GEORGE MARIEN AL
IPC: G01N23/22
Filed: 1966-03-28
Abstract: 1,183,571. X-ray apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 17 March, 1967 [28 March, 1966], No. 13585/66. Heading H5R. An X-ray analyser apparatus has a specimen chamber in which a specimen 3 can be bombarded to produce X-rays and which is provided with an X-ray window opening to the analyser apparatus which has a cover slidable between an open position in which it allows free passage of X-rays and a closed position in which it forms a vacuum seal between the specimen chamber and the chamber housing the analysing apparatus. Fig. 3 is an enlarged vertical section of the housing for the specimen chamber and Fig. 4 is a view of the X-ray window in the direction of the arrow IV in Fig. 3. An X-ray beam passes through a window aperture 7 in wall 8 which registers with a window 9 in an outer plate 10. A pair of plates each formed with a window 12 comprise a slide between the wall 8 and the plate 10. A sheet of material 13 transparent to the shorter wavelength X-rays is sandwiched between the said plates and extends across window 12 in the slide. In Fig. 4, the slide is positioned to the left and allows a free passage of X-rays through the windows 7 and 9. When the slide is moved to the right the window 12 will register with windows 7 and 9 so that the X-rays will now pass through the X-ray transparent sheet and the specimen chamber will be vacuum sealed. The. cover can be moved between its two positions by means of hydraulic or pneumatic, apparatus. In Fig. 4, the piston 15 is operated pneumatically by air admitted through the ducts 17 and 18.
Patent GB-1323272-A (GB)
Title: Milling cutter
IPC: B23C5/24
Filed: 1972-03-23
Abstract: 1323272 Milling cutters ETABS SAFETY 23 March 1972 [23 March 1971] 13688/72 Heading B3K A milling cutter comprises a body 1, having helical grooves 2 therein, a removable cutter blade 3 arranged in each groove, and a plurality of pegs 5 in each groove for supporting the blades. The blades are of helical form, and each of the blades is clamped by a plurality of wedges 6, having faces 6b, 6c for engaging the blade, and being secured to the body by screws 8 having right and left-handed screw threads. Pegs 5 are removable, and can be replaced by longer pegs, so as to provide for sharpening of the blades.
Patent GB-761696-A (GB)
Title: Improvements relating to crushing or grinding mills
IPC: B02C15/00
Filed: 1954-05-11
Abstract: 761,696. Edge-runner mills. MANN, B. Aug. 11, 1955 [May 11, 1954], No. 13764/54. Class 59 In an edge-runner mill comprising frustoconical rollers co-operating with a driven rotary table, the table comprises an annulus 7, 8 and a cast wear ring built up from a plurality of sections 9 to 14 adapted to be releasably secured to the annulus, the annulus being provided with a rib 16 engageable by a groove 15 formed by the outer edges of the ring sections. The table is secured in position by means of a ring 20, the outer edge of which engages conical surfaces 5, 6 formed by the inner edges of the ring sections, the ring 20 being bolted to the mill base. If the tyres of the rollers should have become concave due to wear, the replacement sections may have a complementary convex upper face 17, Fig. 2. The annulus is formed with driving notches 21 engageable with upstanding keys on the mill base. Specification 726,607 is referred to.
Patent GB-481472-A (GB)
Title: Radiator with independent source of heat
IPC: F24H3/00
Filed: 1937-05-18
Abstract: 481,472. Radiators for heating buildings. FLINT, C. F. V., and BOGEBJERG, E. R., (trading as FLINT & BOGEBJERG). May 18, 1937, No. 13786. Convention date, May 19, 1936. [Class 64 (ii)] Two radiator elements 1 of the wainscot panel type are placed one on either side of, and connected at top and bottom to, a vertical tube 3 which is provided with an electric heating element 10 enclosed in a tube 9. The top of the tube 3 comprises an expansion space 6 which remains filled with air when water is added through the downwardly-projecting filling tube 8. The upper part of the tube 3 may be formed of copper to resist corrosion, or may be replaceable. The total thickness of the radiator is small and it is adapted to be placed along a wall.
Patent GB-969932-A (GB)
Title: Treatment of growth media
Inventor: WEIL EDWARD DAVID
IPC: A01N59/26
Filed: 1962-04-10
Abstract: Nematodes and/or fungi in soil are destroyed or their growth inhibited by coating seeds to be planted in the soil with powdered zinc phosphide.  The zinc phosphide may be in admixture with aluminium, cuprous, cupric or magnesium phosphide.  In an example pea seeds are coated.ALSO:Nematodes and fungi in the soil are destroyed or their growth inhibited by applying zinc phosphide to the soil, e.g. as a dust. The zinc phosphide may be admixed with aluminium, cuprous, cupric or magnesium phosphide.
Patent GB-308510-A (GB)
Title: Plunger washing appliance
IPC: D06F15/00
Filed: 1928-05-10
Abstract: 308,510. Speck, T. May 10, 1928. Washing - plungers. - A washing-plunger comprises a fabric container c extending between a cover plate e and a perforated bottom plate and enclosing a spring f. A splash preventing rim a is secured to the cover plate by means of pressed in screw threads g. The bottom plate is provided with large perforations in its base and with smaller perforations n in its flanged rim. Alternatively a wire gauze bottom may be provided. The fabric container is secured between the cover plate and the rim a or is clamped in the screw thread of the rim by a clamping ring fitting in the screw thread.
Patent GB-747813-A (GB)
Title: Improvements relating to the soldering of aluminium and aluminium alloys
IPC: B23K35/26
Filed: 1951-06-11
Abstract: A soldering flux for use in making a joint having an aluminium or aluminium alloy component comprises potassium chloride 10-50 per cent, lithium chloride 8-50 per cent, sodium chloride 10-50 per cent, zinc chloride 0,5-20 per cent and lithium fluoride 7-20 per cent.  It may also include cadmium chloride 0,5-10 per cent (which may entirely replace zinc chloride), stannous chloride, lead chloride and antimony chloride 0,5-10 per cent, a halide of one or more of Mg, Ba, Ca, Cu, Ni, Ag 0,5-10 per cent, and a bromide or iodide of K, Li, Na, Zn or a fluoride of K, Na, Zn 0,5-10 per cent.  Solders for use therewith may comprise Al 10-75 per cent, Mg 25-75 per cent, Si 0-15 per cent, Cu 0-20 per cent, Cd 0-20 per cent, Ag 0-10 per cent; or Zn 50-100 per cent; Mg 0-10 per cent, Al 0-30 per cent, Cd 0-50 per cent, Ag 0-20 per cent, Pb 0-20 per cent; or Ag 0-10 per cent, Zn 0-50 per cent, Mg 0-30 per cent, Al 0-30 per cent, Cd balance; or Zn 0-50 per cent, Pb 0-50 per cent, Cd 0-20 per cent, Ag 0-20 per cent, Sb 0-10 per cent, Sn balance; such solders may also comprise ,25-5 per cent of each of such of Na, Mn, Ni, Sb, Bi, Si, ,25-9 per cent of such of Sn, Cu, Pb as are not already contained therein in accordance with the aforementioned compositions.
Patent GB-782677-A (GB)
Title: Improvements in or relating to forming means for profile grinding wheels
IPC: B24B53/08
Filed: 1954-05-12
Abstract: 782,677. Dressing grinding wheels. DURNDELL, G. J. May 12, 1955 [May 12, 1954], No. 13860/54. Class 60. A pantograph-controlled device for profiling the face of a grinding wheel 48, Fig. 1, has the pantograph and the templet 20 adjustable to an inclined position for producing on the wheel a distorted form of the templet profile, the movement of the pantograph being transmitted to the tool-holder carriage through two members adapted for relative sliding movement in a direction perpendicular to a fixed plane, the slidable connection coupling the tool-holder carriage to the pantograph mechanism for movement parallel to the fixed plane. The device comprises a base 10 which may be mounted upon the bed 11 of a cylindrical or surface grinder and supports for adjustment about a pivot 24, Fig. 2, a sub-frame 17 carrying a table 16 for adjustment about a pivot 27, the pivotal adjustments being secured by clamping bolts 25 and 28. The table 16 carries the templet 20 and the fixed pivot 18 of the pantograph 12, 12a, 13, 14 and 15. Inclination of the templet and pantograph about pivots 24 and 27 enables a distortion of the templet profile to be produced on a wheel for grinding a workpiece such as a lathe tool with the necessary top and side rake angles. The tool 30, and if required a second tool for alternative use, are secured to a block 46 pivotally mounted on a bolt 45 vertically adjustable in a slotted lug 43 carried by a part-circular slide 38. A linkage 23 connected by a ball joint 50 and a peg 52 to a socket 53 on the lug 43 couples the slide 38 and the stylus 21 for oscillation in unison. The bodily movement of the stylus as reduced by the inclination of the pantograph is transmitted through a ball joint 35 and a telescopic connection (not shown) to a compound slide 31, 32 carrying the slide 38. Ball bearings are used for the slides and the telescopic connection. Specifications 419,178, 643,240 and 687,182 are referred to.