baber/WOPTO huggingface dataset:
Patent GB-642453-A (GB)
Title: A process for the manufacture of urethanes
IPC: C08K5/353
Filed: 1948-02-05
Abstract: Simple urethanes of formul  <FORM:0642453/IV (a)/1> and <FORM:0642453/IV (a)/2> and their esters with, e.g. oleic acid, their ethers with alcohols or dimethylolurea, and the products obtained when the various hydroxy groups of the dimethylolurea ethers are esterified with e.g. oil fatty acids, are used in the preparation of resinous products by replacing the whole or part of the phenol in a phenolformaldehyde type resin, or the polyhydric alcohol in an alkyd resin.  The urethanes and derivatives may also be reacted with rosin and alkylolamines, with or without glycerol, to give "ester gum" resins.  The Specification as open to inspection under Sect. 91 comprises also the following examples of the preparation of resinous products and paint emulsions: the simple acyclic and the cyclic urethanes are esterified with oleic acid, phthalic anhydride, succinic acid and maleic anhydride; the cyclic urethane is esterified with rosin; the cyclic urethane is condensed with p - tert. - butylphenol di - alcohol; the cyclic urethane is etherified with dimethylolurea and then reacted with octyl alcohol or castor oil; the oleic acid esterified simple cyclic and acyclic urethanes are used to emulsify a resin phase of glycerol phthalate, soya glyceride, pine oil and cobalt driers with an aqueous phase of muriatic casein (treated with ammonia) and phenol.  This subject-matter does not appear in the Specification as accepted.ALSO:A urethane of formula CH2OH.C.Me(NHCOOEt).CH2OH is prepared by heating 2-amino-2-methyl-1 : 3-propanediol with diethyl carbonate.  A cyclic urethane of formula <FORM:0642453/IV (b)/1> is prepared from the above urethane by the continuation of heat until cyclization occurs with elimination of ethanol.  The simple urethane and the cyclic urethane may be esterified by organic acids, e.g. oleic acid, or they may be etherified with dimethylolurea.  The etherified dimethylolurea may itself be etherified with ROH (where R is alkyl, aryl or heterocyclic) or it may be reacted with organic acids, e.g. oil fatty acids, which may esterify a methylol group attached to either the urea or the urethane part of the molecule.  Examples are given of the preparation of the simple acyclic and of the cyclic urethane.  The Specification as open to inspection under Sect. 91 comprises also examples of the esterification of the acyclic and cyclic urethanes with oleic acid to give viscous, partly crystalline products, and refers to the preparation of p-tert.-butylphenol dialcohol from p-tert.- butylphenol and formaldehyde.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1031708-A (GB)
Title: Polyoxymethylene compositions
Inventor: GRIFFITHS VIVIEN
IPC: C08K5/32
Filed: 1962-01-30
Abstract: A composition comprises an oxymethylene polymer and a stabilizing amount of a stable aromatic nitro compound having a molecular weight greater than 220.  The oxymethylene polymer may contain comonomer units, e.g. cyclic ethers and others as disclosed in the Specifications listed below, and may be esterified, etherified or urethaned.  Very long lists of nitro compounds include p-nitro n -dodecyl benzene, 9 - nitroanthracene, a 2,4 - dinitrodiphenyl ether or substituted derivative, an ester of 2-hydroxyethyl - 2,4 - dinitrophenyl ether, N,N1 - di - (2,4 - dinitrophenyl) - 2,5-dimethyl piperazine, N - (2,4 - dinitrophenyl)-g  - pyridone, 2 - (p - nitroanilino) - 3 - keto-N - (p - nitrophenyl) - 1,2,3,6 - tetrahydropyridine, 2 - carboxy - 4 - nitro - 41 - chlorodiphenylamine, a nitrophenylhydrazone or substituted derivative, a phenylhydrazone or substituted derivative, N-(alpha-ethyl-n-butyl)-N1 -2,4 - di - nitrophenyl urea, decamethylene glycol - di - (3,5 - dinitrobenzoate), erythritol or pentaerythritol - tetra - (3,5 - dinitrobenzoate, N,N1 - bis - (beta - [p - nitrobenzoyloxy] - ethyl) urea, the semi-carbazoles of m- and p-nitrobenzaldehydes, nitroanthrone and chloromycetin.
Patent GB-652995-A (GB)
Title: Improvements in or relating to a valve gear for unitary operation of steam and wateradmission valves of an injector
IPC: F04F5/46
Filed: 1948-02-06
Abstract: 652,995. Steam injectors. NATIONAL LEAD CO. Feb. 6, 1948, No. 3516. Convention date, Oct. 20, 1941. [Class 71] [Also in Group XXIX] A valve gear for unitary operation of the steam and water valves 2, 4, respectively, of an injector comprises a U-shaped support 15 attached to the bonnets of the valves and having levers 20 pivoted thereto on pins 21, the valve stems being pivotally connected to the levers which extend into a yoke 24 pivoted to a guide rod 24a. A clevis 27, also pivoted to the rod 24a, is connected to a link 28 actuated by a lever to control the valves. The bottom edge of the yoke is knife-edged and stepped so that the steam valve opens after the water valve. The forked end of the steam valve lever which engages the pin 21 is larger than that of the water valve lever to permit a slight movement of the steam valve relative to the valve gear. Specification 631,901 is referred to.
Patent GB-1338475-A (GB)
Title: Printing machines
IPC: B41F16/02
Filed: 1972-01-10
Abstract: 1338475 Transfer printing apparatus HAYDOCKS DYERS Ltd 10 Jan 1972 [29 Jan 1971] 3548/71 Heading B6C Web material to be printed, such as a fabric 10, a web of transfer material 8 and an endless conveyer belt 5 pass together between a heated plate 1 and a pressure-responsive member 3 which urges the webs against the plate. Preferably the plate has a lower surface of polytetrafluorethylene with stainless steel particles in it, and the member 3 is a flexible, compressed air actuated diaphragm or a pressurized skirt which is sealed against the conveyer. The plate may be of welded construction, and be heated by circulation of oil through internal passages la, or by electrical heating elements. The member 3 may be of glass fibre fabric coated with polytetrafluorethylene, of metal with a surface layer of polytetrafluorethylene with stainless steel particles therein or of silicone rubber.
Patent GB-1203724-A (GB)
Title: An incandescent gas fire
Inventor: VASEY GERALD ANDERSON
IPC: F24C15/24
Filed: 1968-01-23
Abstract: 1,203,724. Incandescent gas fires. R. and A. MAIN Ltd. 3 Dec., 1968 [23 Jan., 1968], No. 3607/68. Heading F4W. In a gas fire having a burner 4, particularly for natural gas, delivering flames between a back brick 1 and radiants 2, a passage 8 delivers air above the top of the radiants before a flue 5. The passage 8 may be directly behind the back brick 1, may be formed within the back brick, or may be arranged outside the firebox. The air, heated by its passage over the back brick, mixes with the gases from the radiants to ensure complete combustion in spite of the cooling effect of a heat exchanger on the flue 5.
Patent GB-122943-A (GB)
Title: Improvements in Apparatus for Projecting Magnified Images of the Structure of Metals and other Objects.
IPC: G03B21/10
Filed: 1918-03-01
Abstract: 122,943. Atkins, E. A., and Rylands Bros. March 1, 1918. Optical - projection apparatus. - In the photo - micrographic projection of solid objects, a cabinet is used containing a microscope, a lightsource, and a condenser. The lightsource 3, such as an arc-lamp, is contained in a partitioned space 6 within the cabinet, and is regulated from outside by the pinion head 4. Condensers 15 and 17 deliver a conical beam of light to the microscope; 16 is a water-cell. The light reaches the subject 20 from a vertical illuminator within the microscope 2, and the magnified image is projected onto a screen placed outside the cabinet.
Patent GB-328680-A (GB)
Title: Improvements in and relating to the production and/or modulation of periodic electric currents
IPC: H03B13/00
Filed: 1929-02-04
Abstract: 328,680. Harries, J. H. O. Feb. 4, 1929. Vacuum tubes. - In a tube for effecting frequency-multiplication or modulation, a, jet of cathode rays travels over a " record," or target, having non-uniform characteristics, the relative position and/or velocity of the pick-up and record being suitably varied. In the arrangement shown in Fig. 1, the cathode stream 4 is caused to trace a closed curve on the target or record 5 and the output current is taken off between a pair of the electrodes 2, 3, 5. The target 5 is formed as a record of periodically varying properties thus : it may be of highly resistive material, Fig. 7 (e), having a corrugated surface with a conductive layer, or having a conductive edging 24, Fig. 7 (f). Variations in current strength are effected as the cathode stream passes over the surface, and modulation or fresuency multiplication is effected either (i) by variation of the angular speed of the stream or (ii) by variation of its radial position. Means may also be provided (Fig. 4 not shown) for rotating the target 5. In a modification, Fig. 2, the record 5 may intercept the cathode stream falling upon an electrode 7, and in this case the record may be of mesh or of thin material having varied thickness; or it may be a disc with radial slots or with a circular slots of varying width, Figs. 7 (a) - - 7 (d). The cathode stream may impinge on a fluorescent screen (Fig. 3, not shown) the secondary radiation passing through a record, which may be a photographic film, to a device sensitive to it. Instead of travelling in a circle the stream may oscillate linearly, the record being suitably modified to give the desired frequency. The vacuum tube may be of a demountable type, and the cathode stream may pass through a thin metal partition.
Patent GB-142575-A (GB)
Title: Improvements in or relating to brushes, mops and the like
IPC: A46B11/00
Filed: 1919-02-14
Abstract: 142,575. Rhodes, E. Feb. 14, 1919. Piston apparatus for discharging receptacles.-In a reservoir brush or mop &c. the piston - carrying screwedspindle 7 is attached to the tubular soap-container 5 by a plate 6 with lugs 9 engaging bayonet-slots 12. The endplate 14 is rotatable by hand, and is dished to enable the brush to be stood upright; or it may be provided with a ring for the suspension of the brush. Rotation of the piston is prevented or hindered by vanes 20, 21 thereon which embed themselves in the soap.
Patent GB-1156601-A (GB)
Title: Apparatus to Invert Fleece for Skirting
IPC: D01G23/00
Filed: 1967-01-25
Abstract: 1,156,601. Endless conveyers. W. ANGLISS & CO. (AUSTRALIA) PROPRIETARY Ltd. 25 Jan., 1967 [26 Jan., 1966], No. 3781/67. Heading B8A. [Also in Division D1] A conveyer arrangement consisting of two endless conveyers 8, 13 causes fleece discharged from a de-wooling machine to be turned the right way up for subsequent skirtings. The first conveyer 8 has a first upwardly moving portion and a second downwardly moving portion at an obtuse angle to the first portion, the second conveyer 13 being driven synchronously with the first conveyer and being so spaced from the delivery end of the first conveyer that at transfer position 12 the fleece falls downwardly on to conveyer 13 and is inverted automatically. A third conveyer removes fleece skirted by operator 11 upwardly from the lower end of conveyer 13 to a collecting truck 17.
Patent GB-537557-A (GB)
Title: Improvements in the manufacture of chlorine dioxide
IPC: C01B11/02
Filed: 1940-02-29
Abstract: 537,557. Chlorine dioxide. FAIRWEATHER, H. G. C. (Mathieson Alkali Works). Feb. 29, 1940, No. 3811. [Class 1 (ii)] Chlorine dioxide is obtained by reacting in aqueous solution a soluble inorganic chlorate and an inorganic acid in the presence of chloride ion, the proportion of water being 50-75 per cent. of the reaction mixture, the temperature being 15-60‹C., and an inert gas being passed through the reaction mixture. The invention provides a method of determining the ratios of chloride ions, chlorate ions and hydrogen ions so as to obtain maximum yield. This depends not only on the extent D of the decomposition of the chlorate/chloride mixture but also on the efficiency E of the decomposition in yielding chlorine dioxide rather than chlorine. In Fig. 2 the curve AB shows the relationship between efficiency E and the chloride/chlorate ion ratio. The theoretical ratio of chloride to chlorate ions entering into reaction is 5-4E and is shown by the curve CD. To the left of point P (ratio of 1.15) therefore the yield is low because the decomposition, though efficient, cannot proceed to full extent. The theoretical minimum hydrogen ion/chlorate ion ratio is 6-4E, and at least this amount should be used to obtain high yields. Excess of acid is not detrimental to efficiency unless hydrochloric acid is used, when excess acid will increase the chloride/chlorate ratio and reduce efficiency in accordance with curve AB. In practice it is convenient to use a 5 : 1 chlorite/chloride liquor obtained by the chlorination of lime. The efficiency in this case will be 81 per cent. and the amount of hydrochloric acid required is 2.75 mols. per mol. of chlorate. If sulphuric acid were used an efficiency of about 87 per cent. would be obtainable with a .minimum acid requirement of 2.55 mols. Specification 495,267 is referred to.
Patent GB-1042640-A (GB)
Title: Caprolactam derivatives and their preparation
IPC: C08G69/14
Filed: 1965-01-28
Abstract: The invention comprises compounds of the formula <FORM:1042640/C2/1> where R1 is carboxyl, alkoxycarbonyl, cyano acyl or carbamoyl and R2 is hydrogen or an electron attracting group.  An electron attracting group is defined as one which when directly joined to a benzene nucleus causes nucleophilio substitution in the meta-position of the ring to the extent that at least 40% of the substituted product is the meta-isomer.  The compounds are prepared by reacting an a -halogenated caprolactam, e.g. a -bromocaprolactam, with <FORM:1042640/C2/2> wherein M is an alkali metal, followed, if desired, by the conversion of R1 and/or R2 into other of the above mentioned groups or hydrogen. Examples describe the preparation of a -diethoxycarbonylmethyl-; a -dicarboxymethyl-; a -carboxymethyl-; a -ethoxycarbonylmethyl-; a -carbamoylmethyl-; and a -cyanoethoxycarbonylmethyl-caprolactam  An intermediate is the dipotassium salt of a -dicarboxymethyl caprolactam.ALSO:Polymers are obtained from substituted caprolactams of the formula <FORM:1042640/C3/1> where R1 is carboxyl, alkoxycarbonyl, cyano, acyl or carbamoyl and R2 is hydrogen or an electron attracting group.  An electron attracting group is defined as one which when joined to a benzene ring causes nucleophilic substitution in the m position so that at least 40% of the substitution product in the m isomer, copolymers may be obtained by polymerization with other compounds. Catalysts, viscosity stabilizers, anti-oxidants, pigments, fillers, foaming agents, plasticizers and other additives may be present. Examples describe the polymerization at 225 DEG  to 280 DEG  C. of a -carboxymethyl caprolactam, a -diethoxycarbonyl-methyl caprolactam and the copolymerization of a -carboxymethyl caprolactam with a -ethoxycarbonylmethyl caprolactam, with #x-caprolactam, with hexamethylene diammonium adipate, and with #x-caprolactam and #x-amino-caproic acid.
Patent GB-195046-A (GB)
Title: Improvements in or relating to the separation of the constituents of gaseous mixtures
IPC: F25J3/04
Filed: 1923-02-09
Abstract: 195,046. Soc. l'Air Liquide, Soc. Anon. pour l'Etude et l'Exploitation des ProcÚdÚs G. Claude. March 16, 1922, [Convention date]. Separating gaseous mixtures by liquefaction.- In the separation of air or other gaseous mixture by liquefaction in which the necessary low temperature is obtained by the expansion of the compressed air &c. with production of useful work, a portion of the gas so expanded is further expanded, and the cold so produced cools and liquefies the non-expanded compressed gas. The gas prior to its second expansion may be reheated, for example by the unexpanded gas; the two expansions may take place in a single cylinder. In the apparatus shown, the compressed air &c. entering by the pipe H and passing through the exchanger A is led partly through the engine B, while the remainder passes through the liquefier D. The air &c. expanded down to 4 or 5 atmospheres passes from the engine B through a compartment D<1> of the liquefier to a second engine C where it is expanded down to about atmospheric pressure, the expanded air passing through the lower compartment D<11> of the liquefier to the exchanger A and to atmosphere along with the nitrogen led through the pipe K from the top of the rectifier. A portion of the cold gases from the engine B flows into the boiler portion of the rectifying column E, along with the liquid from the liquefier D. The liquid oxygen is delivered through a pipe 0 to an upper part of the column; the gaseous portion flows through a pipe P to a liquefier G, the liquid produced being led through a pipe Q to the top of the column. Separate collecting compartments may be provided for the gases flowing from the top of the column. The gases from the engine C may be delivered directly to the column.
Patent GB-1046525-A (GB)
Title: Improvements in or relating to pyridinium and quinolinium halide derivatives
IPC: C07D213/20
Filed: 1964-01-30
Abstract: Brightness for aqueous nickel electroplating baths comprise 1, 2-dichloropyridinium salts of formula <FORM:1046525/C6-C7/1> where N is pyridine or quinoline X is an anion, R is alkyl (1-4c) halides, and hydroxyalkyl (1-4c) and a is 0-3.  (See Division C2). Secondary brightness e.g. saccharin, dibenzene sulphonamide, and sodium benzene monosulphonate may be used. Examples are given of their use in Watts-type and high chloride type baths.ALSO:The invention comprises 1,2-dichloropropene pyridinium salts of formula <FORM:1046525/C2/1> where N is pyridine or quinoline, a is 0-3, R is alkyl (1-4 C), halide or hydroxy-alkyl (1-4 C), and X is an anion, specifically 1,2-dichloropropene pyridinium chloride and iodide, 1,2-dichloropropene 3,4- and 3,5-dimethyl pyridinium chloride and iodide, 1,2-dichloropropene 4- and 2-methyl pyridinium chloride and iodide which are prepared by the reaction of the quinoline or pyridine base compound with 1,2,3-trichloropropene and the anions may be halides, perchlorates, acetate, sulphate, methosulphate, ethosulphate, citrate and chloroacetate.
Patent GB-717569-A (GB)
Title: Improvements in or relating to lubrication systems and apparatus
IPC: F16N7/30
Filed: 1951-04-24
Abstract: 717,569. Fluids, regulating volume of flow of. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. April 24, 1951 [April 27, 1950], No. 4057/54. Divided out of and addition to 717,499. Drawings to Specification. Class 135. [Also in Groups XXVIII and XXXIV] The flow resistor of this Specification is the same as that described in Specification 717,499, but slightly higher air pressure is applied to the lubricator of which it forms part so that oil is passed through it in mist and liquid together instead of in liquid form alone.
Patent GB-712266-A (GB)
Title: Improvements in velocity-modulation tubes
IPC: H01J25/24
Filed: 1952-02-15
Abstract: 712,266. Velocity-modulated tubes. SPERRY CORPORATION. Feb. 15, 1952 [Feb. 28, 1951], No. 4092/52. Class 39(1) In a reflex klystron the grid 8, Fig. 1, overhangs the re-entrant wall portion 6 by which it is supported, and the arrangement is such that the reflected beam passes through the overhanging portion and is collected on the inner wall of the resonator, so as to avoid hysteresis due to multiple electron transits across the resonator gap. The returning beam is annular, and the electric field lines in the resonator gap are parallel with the returning beam so that maximum energy is given up to the resonator. In the form shown cathode 2 generates a converging beam which has minimum diameter at or near the resonator gap and then diverges due to space-charge repulsion so that it is reflected as an annular beam. Grids 8, 3 are U-shaped thin blades with unequal legs, Fig. 4 (not shown). Tuning is by differential screw 19 .which flexes wall 21, and 22 is an accelerating grid. In modifications, the re-entrant portion of the resonator is a flanged cylinder, Fig. 2 (not shown), or the grid 8 is of larger diameter than grid 13 to increase the capacity and so to lower the frequency.
Patent GB-965828-A (GB)
Title: Improvements in or relating to epoxy resin compositions
IPC: C08G59/50
Filed: 1962-02-02
Abstract: A heat-curable composition comprises a guanamine containing the grouping <FORM:0965828/C3/1> and a glycidyl ester of a polymeric fat acid. Specified guanamines are those of the formulae: <FORM:0965828/C3/2> <FORM:0965828/C3/3> <FORM:0965828/C3/4> <FORM:0965828/C3/5> wherein R1 is hydrogen, a phenyl group or an alkyl radical containing up to 21 carbon atoms; R2 is an aliphatic hydrocarbon radical containing from 6 to 22 carbon atoms and R3 is a dimeric hydrocarbon radical derived from a dimerized unsaturated acid.  Many conventional polymeric fat acids are specified as being suitable for use in the preparation of the glycidyl esters.  The compositions may also contain conventional epoxy resins e.g. the reaction products of epichlorohydrin with bis-phenol-A or resorcinol. The compositions may be partially cured to storable, curable "B-stage" resins.  Example 5 describes the preparation of a glycidyl ester from epichlorohydrin and dimerized unsaturated vegetable oil acids and the admixture of this ester with an epoxy resin derived from bis-phenol-A and epichlorohydrin and cocoguanamine. In examples (1), (2), (4), (6), (7) and (8) a glycidyl ester of dimerized tall oil acids is mixed with:-(1) a guanamine of the formula A where R1 is a hydrocarbon radical of the C12 fraction of coconut oil fatty acids; (2) cocoguanamine and black iron oxide; (4) an epoxy resin derived from epichlorohydrin and bis-phenol-A and cocoguanamine; (6) an epoxy resin derived from epichlorohydrin and bis-phenol-A and a diguanamine of formula D where R3 is the hydrocarbon group of dimerized tall oil fatty acids; (7) the guanamine as in (6); (8) an epoxy resin derived from epichlorohydrin and bis-phenol-A and a guanamine of formula C where R2 is a dodecyl group and (9) the guanamine as in (8).ALSO:In Example 3 a layer of an adhesive composition comprising a glycidyl ester of dimerized tall oil acids mixed with cocoguanamine and finely divided black iron oxide is poured on to a steel can lid and cured by the application of heat.
Patent GB-1467392-A (GB)
Title: Apparatus for assembling a knitted garment with a two-limbed  band
IPC: D05B27/18
Filed: 1974-01-29
Abstract: 1467392 Linking combs BOEHRINGER GmbH Gebr 29 Jan 1974 [31 Jan 1973] 04162/ 74 Heading D1G The invention relates to apparatus for transferring to a linking comb 12 a knitted band 5 of channel shaped cross section and a knitted garment W to the edge of which the band is to be joined by a linking machine. The storage comb 24 carrying bands 5 is swung up by handle 26 and toggle linkage 30, 32 to the shown position so that its flexible points engage the points of comb 12. Stops 48 on the arms 18 supporting comb 24 engage arms 40 to carry up an intermeshing comb 46 having points which intermesh with those of comb 12 to form a stop for the two limbs of a band 5 slid manually on to comb 15. A magnet 50 retains comb 46 in this position while handle 26 is operated to return comb 24 to a withdrawn position (Fig. 1 not shown). Auxiliary comb 52 is now moved to a position C, Fig. 5 where at a spreader 70, moving parallel to the combs between the edges of the band thrusts one limb of the latter on to the points of comb 52. Comb 52 then returns to a position (b, Fig. 7 not shown), similar to its Fig. 2 position but nearer to linking comb 12, thus holding its band limb clear of points 16 so that a garment edge may be impaled manually on those points. Comb 52 then reverts to its position C and its band limb is transferred back on to the points of the linking comb, the garment edge being positioned thus thereon between two limbs of a band ready for linking. In a modification, Fig. 10 not shown, a transfer comb 80 is provided to hold a supply of garment edges for the transfer thereof to points 16 after comb 52 has moved from the position C of Fig. 5.