baber/WOPTO huggingface dataset:
Patent GB-1496403-A (GB)
Title: Process for the production of amidine-metal complexes
IPC: C07D249/08
Filed: 1975-05-22
Abstract: 1496403 Polyurethanes BAYER AG 22 May 1975 [16 July 1974] 22198/75 Heading C3R [Also in Division C2] Polyurethanes are prepared by reacting a polyisocyanate and a compound which contains at least two isocyanate-reactive hydrogen atoms in the presence of an amidine-metal complex obtained by reacting an amidine containing the characteristic group with a compound MeX n Y m  in a molar ratio of from 0À5 : 1 to 4 : 1 where Me is an (n+m)- valent metal, n = 0-2 and m = 0-4, n + m being 2-4, X is a C 1-18  aliphatic hydrocarbyl radical, a C 6-10  aromatic hydrocarbyl radical or a C 7-15  araliphatic hydrocarbyl radical and Y is an aromatic carboxylate anion up to C 18  or a C 2-18  aliphatic carboxylate anion (which may be OH-substituted) or a C 5-18  onolate anion. In examples foams are obtained by reacting diphenylmethane diisocyanate with (a) bi- and tri-functional polypropylene oxide and 1,4- butane diol in CFCl 3  in the presence of various amidine-metal complexes, particularly one obtained by reaction of dibutyltin dilaurate and 2,3 - dimethyl - 3,4,5,6 - tetrahydropyrimidine; and with (b) trifunctional polypropylene oxide and a polyester of adipic acid, phthalic acid anhydride, oleic acid and trimethylolpropane in the presence of dibutyltin dilaurate/N- methylimidazole complex; and by reacting tolylene diisocyanate with (a) trifunctional polypropylene oxide in the presence of the above tetrahydropyrimidine complex; and (b) a polyester prepared from diethylene glycol, trimethylolpropane and adipic acid in the presence of the above N-methylimidazole complex.
Patent GB-1319024-A (GB)
Title: Catalysts for use in the conversion of hydrocarbons
IPC: C10G35/09
Filed: 1971-04-19
Abstract: 1319024 Hydrocarbon conversion catalysts INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 19 April 1971 [23 Feb 1970] 22215/71 Heading B1E [Also in Division C5] Catalyst for use in the reformation, hydrogenation, dehydrogenation and isomerisation of hydrocarbons comprises carrier material which supports platinum and iridium each in an amount of from 0.005 to 1.0 weight per cent relative to the carrier material, the distribution of the platinum and iridium in the catalyst being such that any value for the concentration of platinum or iridium, as obtained by means of a Casting microanalyser (in respect of which a literature reference is given in the Specification), is from 0.5 to 2.0 times the average concentration of platinum or iridium. The catalyst also may contain up to 15 weight per cent, relative to the carrier material, of halogen, for example fluorine which may be derived from hydrofluoric acid (see Example 4) or chlorine which may be derived by use of chlorine-containing platinum/iridium compounds in the preparation of the catalyst. Exemplified carrier materials are magnesia, silica, silica-alumina and alumina, including tetragonal gamma-alumina (see Example 5). The catalyst may be prepared by a process which comprises impregnating carrier material with an aqueous solution having a pH not exceeding 4 and containing at least one platinum compound, at least one iridium compound and an aminoalcohol which preferably contains, per molecule, from 1 to 6 hydroxyl groups, from 1 to 6 amino groups and from 2 to 20 carbon atoms. Exemplified aminoalcohols are monoethanolamine, diethanolamine, triethanolamine, propenolamines, for example 2,2,3-triaminopropan-1-ol and 2,2- diaminopropan-1,3-diol, and butanolamines, for example 2-aminobutan-1-ol. Reference is made to U.S.A. Specification 2848377.
Patent GB-983434-A (GB)
Title: Dyeable fibre forming compositions
Inventor: FARAGO JOHN
IPC: C08L53/00
Filed: 1962-06-08
Abstract: Dyeable fibre-forming block polymers consist of 99.75 to 75% by weight of propylene repeating units and the other repeating units consist of a random copolymer in which 99 to 50% by weight of the units are styrene or an aliphatic acrylate or methacrylate and the remaining units contain an organic radical having sulphonic acid, phosphonic acid or sulphonamide substituents.  The above block copolymers may be blended with random copolymers of the type defined, and the block polymers, or the blends thereof with random copolymers, may be used in admixture with 1 to 25% by weight of a dyeable polyamide, polyester, polyurethane or polyurea.  The block polymers are made by subjecting a mixture of polypropylene and random copolymer to high shear at a temperature of from 120 DEG  to 240 DEG C. for from 1 to 20 minutes in the presence, if desired, of colloidal silica. The examples describe the preparation of block polymers by milling together polypropylene and copolymers of:  (1) methyl acrylate and sodium allyl sulphonate, (2) methyl acrylate and sodium styrene sulphonate, (4) styrene and styrene sulphonic acid, (5) styrene and styrene sulphonamide, (7) methyl acrylate, styrene and styrene sulphonamide.  The resulting polymers are melt-spun to form dyeable fibres.
Patent GB-1351902-A (GB)
Title: Process for producing single ply tubing
IPC: B31F1/00
Filed: 1972-05-12
Abstract: 1351902 Seaming UNION CARBIDE CORP 12 May 1972 [13 May 1971] 22304/72 Heading B5K [Also in Division F2] In a process for producing single ply tubing, a plurality of continuous strips 11, 13 are advanced over guiding means 15 and brought into adjacent relationship at a forming means 17 where they are arcuately shaped to form a tube 21 with overlapping edges which are then bonded. As shown in Fig. 3, the tube may be formed from two strips 11, 13 but in another arrangement three strips are used, not necessarily of equal widths (Figs. 5, 7, 9 not shown). The strips may be of equal or unequal width and may be of different colours, strength properties and light transmitting properties. The strips may be of fibrous reinforcing material such as paper and the tube formed therefrom is passed through a viscose bath and then through a regenerating bath to form a fibrous reinforced cellulosic tubing. As shown in Fig. 8 the overlapping strip edges may be seamed by applying a strip of viscose to the edges of the strips through a nozzle 43 having a slot 45. The edge of the adjacent strip is held away during this application by a guide plate (47) (Fig. 9, not shown) and the edges are subsequently pressed together as the tube advances between a raised portion 49 of a mandrel 19 and the annular forming collar 17. The strips may be of other materials, in particular plastics such as polyvinylacetate, PVC, polyethylene, polypropylene, polyvinylidene chloride and copolymers thereof and the seam bonding may be effected by heat sealing or with a thermoplastic or thermosetting adhesive. Other materials include hemp fibres bonded with regenerated cellulose, Yoshino or rice paper, nylon, polyethylene terephthalate, acrylonitrile, rayon, cotton, cheese cloth, muslin, organdie, marquisette, and voile.
Patent GB-1072704-A (GB)
Title: Apparatus for sensing electrically a form or symbol
IPC: G06V30/10
Filed: 1964-05-29
Abstract: 1,072,704. Character recognition. HITACHI SEISAKUSHO KABUSHIKI KAISHA. May 29, 1964 [May 30, 1963], No. 22366/64. Heading G4R. Characters scanned by a plurality of lines to produce electrical pulses at each crossing are recognized by the relative retarded or advanced relationship between the instant of time of the occurrence of a predetermined number of pulses in different scanning lines. In the illustrated embodiment pulse signals from photo-transistors PT are amplified and shaped at AM and limited to a single first pulse at FF (Fig. 4, not shown) before passing through NOT and differentiating gates PC to produce clipped zero pulses for application to signal analysing circuits RD (Fig. 6A, not shown) which produce a " 1 " output if the first signal is in advance of the second and a " 0 " output conversely for application to exclusive OR circuits RF (Fig. 8A, not shown) which only produce a " 1 " output when adjacent signals are different for counting at RC and recognition at G. The signals a 2  . . . m 2  are applied to similar circuits LD, LF and LC to analyse the last pulses in the signals. The pulse number limiters FF may be modified by the inclusion of further flipflops to allow passage of two or three pulses (Figs. 14A, 14B, not shown) to the signal analysing circuits RD. These may be modified by delay devices (Fig. 6B, not shown) to give a " 1, 0 " or " 0, 1 " output on two lines only if - the pulses are separated by at least an interval T but gives a "0, 0 " output ignored by later circuitry (Fig. 8B, not shown) if less than this interval. In order to prevent erroneous reading of the extreme scan lines not crossed by the character, logical AND combination (Fig. 12, not shown) of signals a 5  . . . m 5  and a 6  . . . m 6  with signals a 9  . . . m 9  obtained from the pulse number limiters FF which give a " 0 " when the scanning lines do not intersect the character, invalidates erroneous extreme signals. To further identify the character if the number of changes between " 0 " and " 1 " identified by RF and LF is identical for different characters the signals 0 5 , a 5  . . . m 5 , m 5  are gated with the result of a logical AND operation on #a 9 , b 9  . . . #l 0 , m 9  whereby only those signals corresponding to the scanning extremities are registered by the recognition circuits G. Instead of comparing adjacent scan lines, several may be compared with a few reference lines. The phototransistors may be replaced by magnetic heads.
Patent GB-366044-A (GB)
Title: A process for the separation of rubber from such liquid dispersions which contain soaps, with the aid of an electric current
IPC: C08C1/14
Filed: 1930-07-24
Abstract: In the electrophoretic disposition of rubber from aqueous dispersions which contain soaps, such as revertex or revultex, the coherence of the film deposited is improved by the addition of ammonia to the dispersion, a suitable quantity being 0,18 per cent of ammonia for a dispersion containing 30 per cent of caoutchouc.  Direct or alternating current may be employed, gas formation being avoided by the use of a voltage of 1,5 or less.
Patent GB-1524581-A (GB)
Title: Filters based on active carbon
IPC: C02F9/00
Filed: 1976-05-28
Abstract: 1524581 Active carbon filters SOC PICA 28 May 1976 [30 Mayl975] 22424/76 Heading C1C Filters used in water purification comprise a chamber filled with a number of layers of different active carbons each layer being superimposed upon the other in order of increasing apparent density from top to bottom without any intervening material between adjacent layers of active carbon, each of which has the same particle size range.
Patent GB-358624-A (GB)
Title: Improvements in or relating to resilient wheels
IPC: B60B9/00
Filed: 1930-07-25
Abstract: 358,624. Spring wheels. DEANE, H. H. B., 46, Church Street, Rugby. July 25, 1930, No. 22495. [Class 144 (i).] Flanges a connected to the wheel-rim are formed with cup-shaped recesses k with which engage the rounded heads h of plungers g axially mounted in the hub e. The plungers are arranged in pairs pressed into engagement with the cups by means of springs i, or pneumatic cushions. Lubricating-passages l, m are provided in the hub and plungers respectively.
Patent GB-387945-A (GB)
Title: Improved winding crank for gramophones
IPC: G11B17/00
Filed: 1932-08-12
Abstract: 387,945. Hand cranks. WOODHOUSE, J., 45, King George Road, Harton, South Shields, TURNER, J., 29, Jackson Street, Chester Road, and BATTY, E. F., 2, Havelock Terrace, both in Sunderland. Aug. 12,. 1932, No. 22580. [Class 136 (ii).] In order to prevent overwinding of a gramophone spring by the hand crank, the crank arm 4 is formed with a chamber 6 containing a plunger 10, which is acted upon by a spring 12 and is provided with a toothed extension 11 adapted to engage serrations on the end of the spindle 2. The pressure of the spring 12 is adjusted by means of a square nut 16 and a screw 13 provided with a knurled head 15.
Patent GB-599281-A (GB)
Title: Improvement in piezoelectric crystal plate and method of fabricating same
IPC: H03H3/02
Filed: 1945-09-03
Abstract: 599,281. Piezo-electric crystals. BRUSH DEVELOPMENT CO. Sept. 3,1945, No. 22592. Convention date, Sept. 7, 1944. [Class 40 (v)] A process of making P-type piezo-electric crystal plates, i.e. those isomorphous with primary ammonium phosphate, consists in cutting a Z-cut, P-type crystal plate into a plurality of triangular portions and connecting the portions by their edges to form a composite expanded plate in which the directions of expansion for each of the portions are aligned. P-type crystals, when cut at right-angles to the major axis, provide square plates such as 21, 22, Figs. 3 and 4, having, for a given electric field, a direction of expansion parallel to a diagonal as shown by the arrows. One plate 21 is cut along a diagonal 23 parallel to the direction of expansion to form triangular pieces A, B, while the other plate 22 is cut along diagonal 24 perpendicular to the direction of expansion to form pieces C, D. The pieces A, B, C, D are then assembled as in Fig. 5, with their directions of expansion all parallel, and the edges are cemented together to form an expander plate of twice the size of the original plates. Alternatively, the pieces A, B, C, D may be slightly offset so as to avoid mechanical weakness due to the four cuts meeting at the centre, (Figs. 6, 7, not shown). In Fig. 9, a single plate is cut along one diagonal to form a half E and the other half is cut along the other diagonal to give pieces F, G. Pieces E, F, G are then assembled to give an oblong expander plate. Alternatively, if the longer cut is along the diagonal, perpendicular to the direction of expansion, the resulting composite plate expands along the minor dimension (Fig. 10, not shown). Two expander plates as in Fig. 9, but of opposite polarity may be joined face-toface to give a bender unit Fig. 11. In this case the cuts 50, 51 of one plate are arranged at right-angles to the cuts 52, 53 of the other plate so as to reduce mechanical weakness. Fig. 14 shows a further double size plate, formed by cutting one plate diagonally into four pieces A, B, C, D, which are suitably joined along the edges of an uncut plate 56. Larger plates may be formed by using the parts of more than two primary crystal plates.
Patent GB-647907-A (GB)
Title: Improvements in and relating to plastic compositions suitable for use in making dilatable sealing elements
IPC: C08J3/09
Filed: 1947-08-14
Abstract: An extrudable polyvinyl chloride composition suitable for use in making dilatable sealing elements is made by mixing polyvinyl chloride with a temporary plasticizer comprising a solvent and a non-solvent for the resin, heating with continuous mixing until the mass becomes a stiff gel, then cooling with further mixing, so that it is broken up into small rubbery curds.  Specified solvents are isophorone, mesityl oxide, fenchone, cyclohexanone, methyl butyl ketone, methyl isobutyl ketone, methyl amyl ketone, methyl isoamyl ketone, ethyl amyl ketone.  Specified non-solvents are xylene, dichlorbenzene, monochlorotoluene, diethylbenzene, chlorinated xylenes.  The mixture may also contain fillers and pigments such as zinc oxide and green chrome oxide, organic dyes, stabilizers, e.g. litharge or lead silicate, and small quantities of high boiling plasticizers, e.g. tricresyl phosphate, dioctyl phthalate.  The rubbery curds may be extruded into tubes, sleeves, and the tubes formed into cap sealing elements.  The sealing of the opening is effected by placing the element in a liquid which dilates it, applying it to the opening and removing the liquid by evaporation at room or elevated temperatures.  The liquid may consist of a solvent and non-solvent for the polyvinyl plastic. Specified solvents are acetone, methyl ethyl ketone, and isophorone.  Specified non-solvents are benzene, toluene, xylene, ethyl benzene, and cumene.  The elements may be used for connecting lengths of plastic materials, or glass or metal; or for closing the ends of lengths of tubing; or for closures for bottles.
Patent GB-1115994-A (GB)
Title: Sulphur condensation products and method for their production
IPC: C08G18/64
Filed: 1965-05-27
Abstract: Condensation products containing an average of 2.5 to 7 phenyleneoxyalkanol radicals joined by sulphur linkages and having a ratio of 0.85 to 1 atom of sulphur per phenyleneoxyalkanol radical, a hydroxyl number of 30 to 500 and a viscosity in the range 20 to 500 Gardner seconds at 50 DEG  C. may be prepared by (a) reacting a phenol with up to 2 moles of a sulphur halide to produce a phenol-sulphur condensate which is then hydroxyalkylated or (b) hydroxyalkylating a phenol and then condensing the hydroxyalkylated phenol with up to 2 moles of a sulphur halide. In examples, the phenols used are phenol, nonyl phenol, parachlorophenol, a styrenated phenol and 2-phenoxyethanol. The preferred sulphur halides are sulphur monochloride, sulphur dichloride and sulphur bromide and ethylene oxide, 1,2-propylene oxide, 1,2-butylene oxide or butylene carbonate are used as hydroxyalkylating agents. The sulphur atoms in the condensation products may be modified by oxidation to sulphoxide and/or sulphone radicals using e.g. a peroxide.ALSO:Chemical compounds containing an average of 2.5 to 7 phenyleneoxyalkanol radicals joined by sulphur linkages and having a ratio of 0.85 to 1 atom of sulphur per phenylene-oxyalkanol radical, a hydroxyl number of 30 to 500 and a viscosity of 20 to 500 Gardner seconds at 50 DEG C. may be prepared by (a) reacting a phenol with up to 2 moles of a sulphur halide to produce a phenol-sulphur condensate which is then hydroxyalkylated; or (b) hydroxyalkylating a phenol and then condensing the hydroxyalkylated phenol with up to 2 moles of a sulphur halide. In examples the phenols used are phenol, nonyl phenol, parachlorophenol, a styrenated phenol and 2-phenoxy-ethanol. The preferred sulphur halides are sulphur monochloride, sulphur dichloride and sulphur bromide and preferred hydroxalkylating agents are 1,2-propylene oxide, ethylene oxide, 1,2-butylene oxide or butylene carbonate.  The sulphur atoms contained in the chemical compounds may be oxidized to sulphoxide and/or sulphone radicals using e.g. a peroxide.
Patent GB-1504865-A (GB)
Title: Construction of hammers
IPC: B25D1/02
Filed: 1975-05-14
Abstract: 1504865 Hammers JACOBS MFG CO Ltd 14 May 1975 [21 May 1974] 22648/74 Heading B4C A hammer 10 is provided with replaceable inserts 20 having different materials 34 therein the inserts being held in place by release mechanism 36, the hammer handle being hollow to store inserts when not in use. As shown in Fig. 1, the insert 20 has a forked tang and is held in place by a spring-loaded pin 38 a widened section 46 of which locks in a counterbore in the tang. The hammer head is fixed to the shaft by a rivet 24 and plastics members 21, 22. A spring-urged member 56 holds spare inserts inside the hammer shaft. Alternative locking means for the insert include an apertured plate normally offset by spring means from the bore into which the tang of the insert member and which engages a groove in the insert member. Alternatively a screw-on cap may be provided to retain a flange on the insert. The hammer head may be held on by spreading the hammer shaft with a tapered plug. Square section apertures may be provided also to locate sockets on the hammer head and in one embodiment the handle of the hammer remote from the head may be provided with means for locating a screw-driver blade.
Patent GB-132790-A (GB)
Title: Improvements in and relating to Drying Apparatus for Sheet-metal Plates.
Inventor: WAGNER CHARLES
IPC: F26B15/08
Filed: 1919-09-15
Abstract: 132,790. Wagner, C., and Hormel, A. Sept. 14, 1918, [Convention date]. Endless-band conveyers, articles carried by.- Sheet-metal plates are delivered from a printing- machine to endless bands which feed them into a heated chamber through which they are carried by endless chains, the links of which are provided with frames or supports. Fig. 3 shows in a vertical section the two ends of the apparatus. The plates P are fed into the chamber 1 by bands 90, 91 and are engaged by carriers 71 mounted on the links of endless chains running on chain-wheels mounted on axles 7, 8, the axle 8 being adjustable to regulate the tension of the chains. The plates are carried forward by the chains, and near the end are raised by guides 57 and dropped on to inner chains C. The links of the chains C carry gripping plates which close on the lower edges of the plates as the links turn round their chain wheels. As the chains reach their lower position, the gripping plates open and the plates fall on to lower chains B, driven from the upper chain, and are carried back to the feed end of the chamber, where they are discharged. A curved guide 92 prevents a plate falling should it escape the gripping plates. The chamber is heated by gas burners 61 covered by hoods 63
Patent GB-843645-A (GB)
Title: Dyeing of man-made fibers in the mass
IPC: C08K5/00
Filed: 1957-07-17
Abstract: Synthetic fibres are made by spinning a solution or melt of a fibre-forming material containing one or more styryl dyestuffs free from hydroxy groups, the latter being defined as condensation products of hydroxy-free aromatic aldehydes having the -CHO group attached directly to the nucleus and hydroxy-free active methylene compounds.  Exampes describe the addition of one or more of such dyestuffs to (1) solutions of cellulose acetate and triacetate in acetone/methanol and methylene chloride/ethanol respectively, which are dry-spun (2) a solution of chlorinated polyvinyl chloride containing diethyl sulphide in acetone, which is dry-spun, (3) a solution of polyvinyl chloride in cyclohexanone, which is wet spun into a dilute solution of cycohexanene in 2-ethylhexanone, (4) a solution of polyethylene in xylene, which is wet-spun into a butyl alcohol butyl phthalate mixture, (5 a solution in acetone of a vinyl chloride/acrylonitrile coplymer, which is wetspun into water, (6) a solution of poly acrylonitrile in dimethyl formanide, which is wet-spun into glycerol and (7) melts of polyamides e.g. Rilsan and Nylon 66, polyolefines, e.g. polyethylene and polystylene, and polyethylene terephthalate, which are melt-spun.  Specifications 595,571, 684,386, 843,643, 843,644, German Specifications 514,421, 515,782, 676,256, 677,641, 824,818, 824,819, 835,172, 865,925, 878,539, 891,120, French Specifications 737,337, 815,168, 1,022,926, 1,038,333, 1,038,334, 1,097,421, U.S.A.  Specifications 1,950,421, 2,028,141, 2,043,081, 2,053,819, 2,179,895, 2,206,108, 2,385,747, 2,583,551, 2,583,614, 2,649,471, 2,66,7411, 2,669,575, 2,688,538, 2,734,901, 2,762,810, 2,766,233 and 2,766,260 are referred to.ALSO:Styryl dyestuffs free from hydroxy groups are made by condensing aromatic aldehydes having the -CHO group attached directly to the nucleus with active methylene compounds, the reactants being free from hydroxy groups.  Thus, the dyestuff of the formula: <FORM:0843645/IV (c)/1> is made by condensing the dialdehyde of N.N1-diphenyl piperazine with malonic dinitrile in ethanol in the presence of piperidine.  A number of other dyestuffs are also specified. Specifications 595,571, 684,386, 843,643, 843,644, German Specifications 514,421, 515,782, 676,256, 677,641, 824,818, 824,819, 835,172, 865,925, 878,539, 891,120; French Specifications 737,337, 815,168, 1,022,926, 1,038,333, 1,038,334, 1,097,421; U.S.A. Specifications 1,950,421, 2,028,141, 2,043,081, 2,053,819, 2,179,895, 2,206,108, 2,385,747, 2,583,551, 2,583,614, 2,649,471, 2,667,411, 2,669,575, 2,688,538, 2,734,901, 2,762,810, 2,766,233 and 2,766,260 are referred to.