baber/WOPTO huggingface dataset:
Patent GB-864357-A (GB)
Title: Rapidly hardenable mixtures of epoxy resins and polyamide resins
IPC: C08G59/62
Filed: 1957-10-02
Abstract: In compositions suitable for use as coatings, varnish or lacquer films and as adhesives for uniting metals comprising epoxide resins and polyamides, obtained from dimerized or trimerized fatty acids and aliphatic polyamines, the hardening of the compositions is accelerated by the addition of Mannich bases i.e. compounds of the general type:-  <FORM:0864357/IV (a)/1> where X is 1-4, R is a mono- or poly-nuclear mono- or poly-phenol radical with a valency of a , and R1 is alkyl or hydroxyalkyl; if desired the two R1 radicals with the nitrogen atom form a ring system e.g. piperidine or morpholine. Mannich bases specified are 2-(dimethylaminomethyl)-phenol; 2, 6-di-(dimethylaminomethyl)-phenol; 2, 4, 6-tri-(dimethylaminomethyl) phenol; 2, 4, 6-tri-(dihydroxydiethyl amino methyl)-phenol; 2, 4, 6-tri-(morphoinomethyl)-phenol; 2- (dimethylaminomethyl) -6- methylphenol; 2- (dimethylaminomethyl)- 4- octylphenol; 2 (dimethylaminomethyl) -3, 5- dimethylphenol; 2, 4, 6 -tri- (piperidinomethyl)- phenol; 2- methoxy -6- dimethylaminomethyl-phenol; 1- dimethylaminomethyl)- naphthol- 2, 4, 41-dihydroxy-3, 5, 31, 51- tetradimethylaminomethyl) diphenyl-dimethylmethane; 2; 4, 6- tri-(dimethylaminomethyl)-3-methyl phenol.  Known aromatic and aeiphatic polyamine hardening agents may also be added to accelerate the curing.  In Example (1) an epoxy resin from 4, 41-dihydroxydiphenyl-dimethylmethane and epichlorhydrin was mixed with lithopone, pearl white, TiO2, dioctylphthalate and a polyamide known as "Versamid 115" (obtained by condensing diothylene triamine and a dimerized unsaturated fatty acid).  Tri (dimethylaminomethyl) phenol and Tetra Diane Mannich bases were used for curing and hardening. They are compared with those obtainable with other amines.  Other examples are similar, illustrating the use of solvents to give lacquer coatings, the use of other Mannich bases, the use of diglycidyl phthalate as epoxy resin (the terephthalate is also referred to), and the use of silica as a filler in an adhesive composition.  Specifications 726,570, 735,001 and 766,771 are referred to.
Patent GB-244130-A (GB)
IPC: C10C1/10
Filed: 1925-12-07
Abstract: 244,130. Soc. des Etabtissements Barbet. Dec. 5, 1924, [Convention date]. Rectifiers; hydrocarbons, distilling.-In an apparatus for continuously rectifying crude benzol comprising two rectifying columns, the first of which separates head products, benzol, toluol, and xylol, and the second of which is operated under reduced pressure and separates solvent naphtha and xanthene, the columns are operated so that the vapours only and not the crude material itself enters them. The crude benzol passes from a tank A through a tubular heater E inserted in a column B and enters a tubular heater C. Vapours pass by a pipe 3, 4 into the column. and the liquid passes into a second tubular heater C<1> heated sufficiently to cause all the xylene to be evaporated. The vapours are passed by a pipe 7, 8 into the base of the column. The unvaporized liquid is passed through a float separator F into a vessel R which is exhausted by connection to a column O maintained under reduced pressure by an air pump N. Vapours from the vessel R are either passed into the column or into a condenser and residual liquid passes into a tubular heater S, the vapours from which pass into the column. The residual liquid passes into vessels V, V<1> and thence to naphthalene crystallizers. The reflux liquid from the base of the columns may be passed into the heaters C, S, or in the case of column B a separate tubular heater D may be provided. The head products from the column O are discharged through a barometric tube 20.
Patent GB-1097130-A (GB)
Title: Improvements in or relating to circuits for a.c. electromagnets
IPC: H02K33/00
Filed: 1966-07-11
Abstract: 1,097,130. Vibrator supply arrangements. SKODA OBOROVY PODNIK. July 11, 1966 [July 28, 1965], No. 31035/66. Heading G4F. A circuit for an A.C. electromagnet has an A.C. exciter winding 3 which produces oscillations in a body 4 and a biasing D.C. winding 2 in series with at least one choke coil 5, a capacitor 8 being in parallel with coil 5 or with the winding 2.
Patent GB-663781-A (GB)
Title: Improvements relating to foundry practice
IPC: B22C23/02
Filed: 1948-12-01
Abstract: 663,781. Cores and core-boxes. DUNKIN, C. Nov. 30, 1949 [Dec. 1, 1948; Jan. 19, 1949], Nos. 31174/48 and 1442/49. Class 83 (i). In a method of manufacturing tubular or other cored castings, a metallic core having a high melting-point is coated with an asbestos composition. The composition K is preferably applied to the core J by introducing it, in the form of a liquid or emulsion, into a metal or other core-box comprising two parts A, B hinged together at C and provided with spaced apertured lugs D through which a detachable locking-pin is passed, the box being formed with the inturned ends H or spacing rings to close the space between the core and the ends of the box, so that when the casing box is placed on the core and closed, excess of composition is squeezed out. The interior of the box is highly polished.
Patent GB-991115-A (GB)
Title: Improvements in or relating to lysergic acid derivatives
IPC: C07D457/04
Filed: 1961-08-30
Abstract: The invention comprises compounds of the general formula <FORM:0991115/C2/1> (in which R1 is hydrogen or C1- 4 alkyl, \sGx  y represents <FORM:0991115/C2/2> and Hal signifies a chlorine, bromine or iodine atom) in the form of their acid addition salts; and a process for their preparation in which the corresponding acid, or an alkali metal salt thereof, is reacted with a phosphorus halide, a phosphorus oxyhalide or a thionyl halide.  The examples show the preparation of the hydrochlorides of D-lysergic acid chloride, D-dihydrolysergic acid chloride and 1-methyl-D-lysergic acid chloride.  The starting material for the last preparation is prepared by hydrolysing 1-methylergotamine by refluxing with an aqueous suspension of barium hydroxide.  The above compounds may be used as starting materials in the production of ergot alkaloids of the peptide type, for example ergotamine or 9,10-dihydroergotamine may be synthetized by reacting lysergic acid chloride hydrochloride or 9,10-dihydrolysergic acid chloride hydrochloride resspectively with amin cyclol hydrochloride of formula <FORM:0991115/C2/3> Lysergic acid diethylamide, lysergic acid butanolamide and ergonovine may also be prepared from the acid chlorides. Specification 988,001 is referred to.
Patent GB-382761-A (GB)
Title: Fuel feed systems for internal-combustion engines
IPC: F02B1/00
Filed: 1931-11-11
Abstract: 382,761. Tank fittings. ROTHERHAM, K. and SMITH, H. N., 27, Spon Street, Coventry. Nov. 11, 1931, No. 31233. [Class 69 (i).] In a fuel-feed system for an internal-combustion engine wherein the fuel is supplied from a lower tank 3, Fig. 1, to an upper tank 2 by an applied pressure-difference, a pipe 8 is connected to the bottom of the tank 3, while a pipe 12 extends into the tank, valve means 4 being provided to put either pipe into effective communication with a pipe 7. Normally, fuel passes through both pipes 8, 12, but flow ceases when the fuel reaches the level of the mouth of the pipe 12 ; a valve 13, Fig. 4, is then turned to close a port 9, and flow continues through the pipe 8 only.
Patent GB-648772-A (GB)
Title: Improvements in or relating to knocking-off motions for textile machines employing warp threads
IPC: D02H13/00
Filed: 1947-11-25
Abstract: 648,772. Warp stop motion. BAUGNIES, E. Nov. 25, 1947. No. 31246. Convention date, Sept. 30, 1947. [Classes 142(i) and 142(iv)] A warp stop motion comprises an electrical drop wire suspended by a link, of appreciably larger internal diameter than the diameter of the warp thread, and arranged, on breakage of a warp thread, to drop and complete an electric circuit which operates a signalling apparatus and a switch cutting off the electric supply. A drop wire 1 has an upper loop 3, to which a link 2 engaging a warp thread is attached, an elongated loop 4 engaging guides 5 connected to one pole of a source of electrical energy 6, and a lower portion 10 in electrical connection with the loop 4 and which, when a thread breaks, completes an electric circuit through a plate 7 to operate a signalling device 8 and a switch 9 which cuts off the electric supply. Rollers 12, 13 and 14 tension the warp threads. In the embodiment described, two drop wires are employed on each warp thread.
Patent GB-817264-A (GB)
Title: Improvements in or relating to aircraft seats
IPC: B64D11/06
Filed: 1956-10-15
Abstract: 817,264. Seats. BAYNES AIRCRAFT INTERIORS Ltd., and BAYNES, L. E. Oct. 14, 1957 [Oct. 15, 1956], No. 31352/56. Class 52(2) The back 17a, 24 of an aircraft seat is hinged at 100 to the seat chassis 13, 25 and is normally held in upright position by a latch 23 which, yields under strong impact on the rear of the back to allow it to fold forward. On the chassis is secured a spigot 26 having a shoulder 27 co-operating with a ring of balls 28 surrounded by an annulus 29 of @hard rubber in a housing 30 carried by the seat back. On impact on the seat back, the balls are pressed against the rubber by the spigot, which frees the latch. The arm-rest may be mounted on parallel links on the chassis and held in erected position by a resilient link which may include a releasable catch. The back may be angularly adjustable. The head rest, which is padded on front and rear, may be mounted on a sub-frame carried by the frame of the seat back. The back upholstery squab may be laced to the frame. The head-rest may be narrower than the seat back. Specification 817,263 is referred to.
Patent GB-944499-A (GB)
Title: Polyester resins and process for preparing the same
IPC: C08G63/52
Filed: 1962-08-16
Abstract: Ultra-violet light absorbing polyester resins are prepared by esterifying polyhydric alcohols with unsaturated, together if desired, with saturated dicarboxylic acids, and 0.05 to 0.1 mol. for each mol. of dicarboxylic acid of p-methyl or p-ethylbenzoylacrylic acid, dissolving the resulting polyester resin in a copolymerizable monomeric liquid and subjecting the polyester to polymerization and curing in the presence of a peroxide catalyst.  In the example, maleic acid anhydride, phthalic acid anhydride, propyleneglycol-1, 2 and p-ethylbenzoylacrylic acid are copolymerized and to the polyester formed hydroquinone is added, after which the polyester is mixed with styrene and after further polymerization is cured with benzoyl peroxide. Other copolymerizable monomeric liquid solvents mentioned are vinyl alcohol, acrylic acid esters and methacrylic esters.  Lists of polyesters which may be copolymerized with the benzoyl acrylic acids are given.
Patent GB-1094900-A (GB)
Title: Process for the production of iron-ó¾-oxide
Inventor: HENNEBERGER FRIEDRICH
IPC: C01G49/06
Filed: 1966-07-13
Abstract: Ferric oxide is produced by the steps of precipitation of Iron-II-carbonate from a solution of a ferrous salt to which a mixture of ammonium carbonate and ammonium bicarbonate are added. Separation of ferrous carbonate is followed by heating to 550-650 DEG C. to form ferric oxide by air oxidation.  Ferric oxide produced in this way is particularly suitable for oxidic sintered moulded bodies.
Patent GB-1096980-A (GB)
Title: Process for the production of polyphenylene oxides
Inventor: BEHR ERICH
IPC: C08G65/44
Filed: 1966-07-13
Abstract: Polyphenylene oxide polymers are prepared by oxidizing 2,6-dimethyl phenol with gaseous oxygen in the presence of a metal chelate complex of formula <FORM:1096980/C3/1> where R is a divalent hydrocarbon radical, R1 and R2 each represent halogen atom, an alkyl, aryl, aralkyl or alkoxy radical or an -OH, -NO2, -SO3H or -SO3 Na group, M is an atom of a metal that can exist in more than one valence state, and n is 0, 1, 2 or 3.  The complex may be present in an amount of 1 to 10 mol per cent based on the phenol.  The reaction may be carried out in a solvent and an alkali may be present.  In Examples polymers are obtained from 2,6-dimethylphenol by oxidation with oxygen and air in the presence of a complex of the above formula where R is ethylene, M is cobalt and n is zero.
Patent GB-730534-A (GB)
Title: Improvements in or relating to resilient torsion joints
IPC: F16F3/08
Filed: 1953-11-16
Abstract: 730,534. Resilient joints. ANDRE RUBBER CO., Ltd. (Neidhart, H. J.). Nov. 16, 1953, No. 31778/53. Class 108 (3). The invention relates to rubber torsion joints of the type forming the subject of Specification 652,266. According to the invention, a plurality of shims upon which the rubber members roll, bear against, and are supported by, either the rigid outer member or the rigid inner member. In Fig. 7B the ends 10, 10a of the shims 4 are turned inwardly to form a stop to engage the inner member 2 according to a desired preload. In Fig. 9B the member 1 is of cylindrical crosssection. The necessary multilateral outer surfaces on which the rubber members 3 roll, is formed by the shims 4 which are of more solid construction, e.g. die-cast. Each of the shims 4 in Fig. 9B may be split at its narrowest point so that there are 8 shims instead of 4 (Fig. 9C, not shown). In Fig. 11C, sheet metal shims 4 having looped ends 13, are disposed in a cylindrical outer member. The loop may be formed at one end only (Fig. 11E, not shown). The end which is not looped may rest on the looped end of the adjacent shim (Fig. 11D, not shown). The ends 13 may, however, be in the form of rectilinear lugs (Fig. 8, not shown), disposed at right angles to the respective sides of the shim. The adjacent sides of each shim need not be at right angles (Fig. 12A, not shown). There may be a discontinuity, or step, formed in the surface on which the rubber members roll, at the junction of adjacent shims (Figs. 12A to 12E, not shown). In Fig. 15, stops 17 positively prevent movement of the shims 4 relative to the outer member 1 (otherwise they are retained by friction). The stops 17 may be of dove-tailed shape in crosssection. In assembly (Fig. 19), the rubber members 3 and shims 4 are held in position, under pressure by jaws 18 of a press. Axial pressure is then applied to slide the assembly into the outer member 1. In an alternative process (Fig. 21, not shown), the assembled inner member 2, rubber members 3, and shims 4, are slid through a tapering funnel into the outer member. In the assembly of a joint in which the shims are disposed between the rubber members 3 and the inner member 2 (Figs. 23, 26, not shown), the inner member 2 is inserted into an assembly of the remaining members preceded by a tapered leader member. The latter form of joint may be of the construction described in Specification 730,167. Specification 710,244 also is referred to.
Patent GB-644085-A (GB)
Title: Improvements in spinnerets
IPC: D01D4/00
Filed: 1947-12-02
Abstract: A spinneret with a plane external surface is provided with a plurality of jets comprising an extrusion channel of any desired shape terminated by an orifice of very small diameter, an inner jet of relatively large diameter and a filter interposed between the extrusion channel and the inner jet.  The two parts of the jet may be <PICT:0644085/IV (a)/1> <PICT:0644085/IV (a)/2> <PICT:0644085/IV (a)/3> of any shape, but in particular of cylindrical, conical or prismatic shape or of a combination of these shapes, and are preferably coaxial to one another.  The spinneret may be made of metals and alloys such as nickel and stainless steel, plastic material such as the superpolyamides and vinyl polymers, glass, or several of these materials together.  The spinnerets can be used in the manufacture of all kinds of artificial or synthetic textile fibres such as those of cellulose acetate or regenerated cellulose. Fig. 1 represents a spinneret consisting of a disc of hard steel, 1, in which are an extrusion channel piece 3 containing the extrusion channel 4 tapering down to orifice 8, a filter of fritted glass, and an inner jet-piece 6 of superpolyamide containing inner jet 7.  Figs. 2 and 3 show a spinneret head 1, in which are formed 24 extrusion channels 4 leading to orifices 8; the filter 5 consists of two sheets of bronze gauze, the inner disc 6 being provided with 24 inner jets 7.
Patent GB-506002-A (GB)
Title: Improvements in and relating to the recovery of sulphur dioxide from gas mixtures
IPC: C01B17/60
Filed: 1937-11-19
Abstract: 506,002. Recovering sulphur dioxide. IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 19, 1937, No. 31949. Convention date, Feb. 9. [Class 1 (ii)] In the recovery of sulphur dioxide from gas mixtures by the alternate absorption in and expulsion from an absorbent liquor consisting of an aqueous medium and one or more waterimmiscible organic bases, e.g. aniline, quinoline or crude xylidine, the liquor which has been used for absorbing the sulphur dioxide is separated into an aqueous layer and an organic base layer by expelling the sulphur dioxide, after which the aqueous layer, or a portion thereof, alone, is treated' in the presence of dissolved sulphur dioxide and neutral sulphate, with a calcium compound or compounds, the treated aqueous layer being then returned together with the organic base layer for further use in the absorption process. The calcium compound must be one that will react with the sulphuric acid to precipitate calcium sulphate without leaving any acid radicle which is non- volatile, e.g. calcium carbonate, sulphite, oxide or hydroxide. The dissolved sulphur dioxide must be in sufficient quantity to prevent the precipitation of any organic base as a result of the addition of the calcium compound and if a sparingly soluble calcium compound is used, must be present in an amount at least equivalent thereto. The amount of neutral sulphate must be such that by treatment of a fraction of the aqueous layer, it is.possible to remove as calcium sulphite an amount of sulphuric acid equivalent to that present in the whole of the aqueous layer or such that the total sulphate removed is more than equivalent to the total free sulphuric acid. The sulphates of sodium, potassium or ammonium arc suitable. The precipitated calcium sulphate may be removed prior to the return of the liquor to the main absorption. The neutral sulphate may be obtained by neutralising the sulphuric acid first formed with ammonia, caustic soda, or sodium carbonate. Specifcations 419,068, 436,116, and 443,314 are referred to.
Patent GB-392915-A (GB)
Title: Means for consolidating the foundation soil of roads and the like
IPC: E01C19/41
Filed: 1931-11-18
Abstract: 392,915. Road rollers. HERTWIG, A., Baracke 15, Kurf³rsten-Allee, Charlottenburg, Berlin. Nov. 18, 1931, No. 31961. Convention date, Dec. 17, 1930. [Class 6 (i).] A machine for consolidating the foundation soil of roads and the like comprises rollers a and soil vibrating mechanism b adapted to cause forces of variable periodicity and intensity to be applied to the soil, and the rollers a and vibratory mechanism b are arranged to be relatively adjustable in a frame f so that the vibratory mechanism may either rest on the rollers a, as shown in Fig. 1, so that pressure and jigging motion may be simultaneously transmitted to the soil, or on the frame, as shown in Fig. 2, so that the rollers a serve as a counterweight and the machine acts exclusively as a vibrating-machine. The vibratory machine and the rollers may be adjusted relative to one another in the frame f by screws e. The vibrating mechanism consists of oppositelymoving unbalanced flywheels c driven by an electric motor or other means. The rollers a may consist of several removable parts which enable the action of the rollers as counterweights to be varied.
Patent GB-1146795-A (GB)
Title: Plant thinning machine
IPC: A01M21/04
Filed: 1967-07-12
Abstract: 1,146,795. Herbicide thinning of plants. M. W. ALDOUS and J. C. HITCHCOCK. 12 July, 1967, No. 32126/67. Headings AID and A1E. [Also in Division H3] Apparatus for thinning a row of plants is carried by a vehicle capable of traversing the row at a predetermined speed and comprises a spray head 10 connected by a pipe 8, solenoid controlled valve 6 and pipe 34 to a tank (36), Fig. 3 (not shown) containing a herbicide, a pair of electrically conductive ground contacting trailing arms 24 to straddle a row of plants and an electrically conductive bar 26 with a cross-bar 30 maintained at a predetermined height above the ground which is less than the height of the plants to be thinned so that contact between the bar 30 and a plant completes an electric circuit between bar 30 and the trailing arms 24 via the plant and the ground. The arms 24 and cross-bar 30 are connected as shown in Fig. 2 to a battery powered electronic control circuit or a control apparatus. This circuit consists of two electronic timer circuits energized alternately according to whether the solenoid valve is energized (see Division H3). When cross-bar 30 contacts a plant, valve 6 closes and spraying ceases for a predetermined period controlled by the first timer means. After this period valve 6 is opened and the second timer means prevents the valve being closed again, when the cross-bar 30 contacts a plant, for a predetermined period. This arrangement ensures that when the gap between plants already exceeds that desired, the first plant beyond the gap will not be sprayed and hence the gap will not be widened. A plurality of sets of apparatus may be provided with a common herbicide supply tank. The control apparatus for each set of apparatus comprises a plug-in unit (52) in a common control box (50), Fig. 3 (not shown). The herbicide is gravity fed to the spray heads 10 which may be sparge pipes.
Patent GB-357822-A (GB)
Title: Improved method of decomposing and hydrogenating heavy organic compounds to produce light hydrocarbons
IPC: C10G47/00
Filed: 1930-10-27
Abstract: <PICT:0357822/III/1> In the destructive hydrogenation of heavy organic compounds to produce light hydrocarbons, the organic compounds are compressed to a higher pressure than that prevailing in the reaction chamber while they are being preheated to a temperature slightly higher than that at which they commence to decompose, and are then introduced with partial release of pressure into the reaction chamber which is maintained at 380-500 DEG  C. under a pressure of 200-300 atmospheres.  Hydrogen heated in a heater B is passed through a valved pipe E into a reaction chamber R which also may be heated and contains the catalyst spread on porous masses. Tar, phenolic oils, naphthalene oils, &c. supplied through a valved pipe G are compressed to 500 atmospheres or more by a pump P and preheated to 450-480 DEG  C. in a heat exchanger I and an independent heater C.  The heated materials are then admitted with partial reduction of pressure to the reaction chamber through ports A. Excess hydrogen escapes with the products of the reaction through a dephlegmator D which returns the heavier products to the reaction chamber.  The catalysts described in Specifications 253,507, 263,082, 276,007, 279,488, and 302,354, [all in Class 32, Distilling &c.], may be used in the reactions.