baber/WOPTO huggingface dataset:
Patent ES-200542-A1 (ES)
Title: Improvements in or relating to the production of threo-oxazoline derivatives
Filed: 1951-11-21
Abstract: A process for the preparation of the threo forms of oxazolines of the general formula <FORM:0711135/IV (b)/1> comprises treating with alkali an erythro form of a compound of the type <FORM:0711135/IV (b)/2> (where R represents an acyl or carboalkoxy group which is readily hydrolysed by the said treatment with alkali). The invention also comprises as a step in the inversion of DL- and L-erythro-2-dichloracetamido-1-p-nitrophenyl-propane-1 : 3-diols involving the formation of DL- or D-threo 2-dichloromethyl-4-hydroxymethyl - 5 - p - nitrophenyl - D 2 - oxazoline with subsequent hydrolysis to the required threo diol, the process which consists in forming the said oxazoline by acetylating DL- or L-erythro - 2 - dichloracetamido - 1 - p - nitro - phenylpropane - 1 : 3 - diol, nitrating the 3 p - acetoxy compound and treating an alcoholic solution or suspension of the resultant nitric ester with dilute sodium or potassium hydroxide solution at a temperature not exceeding 40 DEG C. The radical R is, e.g., an acetyl, benzoyl, acid succinyl or carbethoxy radical. The DL- or D-threo-oxazolines by dissolving in dilute mineral acid followed by neutralization yields the DL- or D-threo 2-dichloracetamido-1-p-nitrophenylpropane - 1 : 3 - diol. In examples: (1) and (6) DL-erythro 2-dichloracetamido-3-acetoxy - 1 - p - nitrophenylpropane (from the reaction of DL-erythro 2-dichloracetamido-1-p - nitrophenylpropane - 1 : 3 - diol with acetyl chloride and pyridine) is reacted with concentrated nitric acid at from -60 DEG to 0 DEG C. to give DL-erythro 2-dichloracetamido-3-acetoxy-1 - p - nitrophenylpropan - 1 - ol nitric ester which with the addition of sodium hydroxide solution gives DL-three 2-dichloromethyl-4-hydroxymethyl - 5 - p - nitrophenyl - D 2 - oxazoline (2) L-erythro 2-dichloracetamido-3 acetoxy - 1 - p - nitrophenylpropan - 1 - ol nitricester (from L-erythro 2-dichloracetamido-3-acetoxy-1-p-nitrophenylpropan-1-ol and concentrated nitric acid) is reacted with alkali to give D - threo - 2 - dichloromethyl - 4 - hydroxymethyl - 5 - p - nitrophenyl - D 2 - oxazoline (3) DL - erythro 2 - dichloracetamido - 3 - benzoyloxy - 1 - p - nitrophenylpropan - 1 - ol on reaction with nitric acid gives DL-erythro-2-dichloracetamido - 3 - m - nitrobenzoyloxy - 1 - p - nitrophenylpropan - 1 - ol 1 - nitric ester which on treatment with alkali gives DL-threo 2 - dichloromethyl - 4 - hydroxymethyl - 5 - p - nitrophenyl - D 2 - oxazoline (4) the same product is obtained similarly from the 1-nitric ester of DL-erythro-2-dichloracetamido-3-carbethoxyoxy - 1 - p - nitrophenylpropan - 1 - ol (5) DL - erythro - 2 - dichloracetamido - 3 - succinyloxy - p - nitrophenylpropan - 1 - ol is converted to its nitric ester and then treated with alkali to give the same product as in (3).
Patent ES-289878-A1 (ES)
Title: Apparatus for the wet treatment of viscose yarns
IPC: D01D10/04
Filed: 1963-07-10
Abstract: A roller, on which synthetic filaments are treated, in a continuous wet-spinning process, with a plurality of liquids, is subdivided, transversely of the axis, into a plurality of processing zones, each zone being associated with an inner chamber in the roller, and orifices being formed in the outer surface of the roller at each end of the zone, by means of which, each processing liquid is allowed to flow from its zone on the roller surface into the related inner chamber. Means are provided for bringing each processing liquid separately from the chambers to an outlet on the roller. A filament 12 (Fig. 1, not shown), is advanced helically by means of skew roller 11 along a processing roller 10 consisting of outer shell 13 and central core 14. Walls 15A-15f, and end walls 16, 161 (Fig. 2), divide the roller into processing zones 20-26 and associated chambers 37. As the filament passes along the roller it is treated in each zone with a liquid, and finally dried in zone 27. The treating liquids are supplied to the processing zones by ducts (not shown). A portion of the liquid applied to, e.g. zone 22 falls to a corresponding zone of trough 30, and is removed by pipe 56. The remainder of the liquid flows towards the ends of zone 22 and is sucked through orifices 31, 32 (Fig. 3, not shown), into annular chambers 33, 34 connected to inner chamber 37. Partition walls 38, 39 prevent zone 22 liquid from flowing into chambers 40, 41 associated with adjacent zones 21, 23. Inner chamber 37 is divided by means of walls 42-45 (Fig. 4, not shown), into sections. As the roller rotates, liquid in each section is lifted and then falls through orifices 46, 47, 48 in walls 42, 43, 44 to be collected in the section associated with wall 45, which contains no orifice. Further rotation of the roller causes the collected liquid to enter opening 49 in central core 14, which is divided into sectors 62-66. Similarly, liquids from each of the other processing zones are separately collected in one of the sectors of the central core. Two or more liquids, however, may be collected in the same sector if their separate recovery is not required. The liquids pass along the longitudinal sectors of the central core 14 and are eventually discharged through openings, e.g. 52 (Fig. 2), to fall into compartments, e.g. 53, in cylindrical container 61 for return to the roller. The liquids are moved by suction applied at 55 to the container 61. Zone 27 on the roller is a drying zone. Hot gas is blown through duct 58 on to the surface of the roller, which is porous at this point, and is exhausted through duct 60. A complete spinning plant may comprise a plurality of rollers 10, each associated with a plurality of advancing rollers 11. In one embodiment, wherein the apparatus is applied to the viscose spinning process, the processing zones on the roller correspond to fixing, desulphurization, bleaching, finishing and washing treatments.
Patent ES-318950-A1 (ES)
Title: Self advancing mine roof supports
IPC: E21D23/00
Filed: 1965-10-26
Abstract: An advancing mine roof suport consisting of two frames 1, 2 arranged in parallel is provided with aligning means comprising a cable 4 secured to a bracket 5 and a jack 9 on one frame with the inter position of guides 6 and pulleys 7, 8 as shown. The frame 2 is secured to the cable 4 by guides 11 slotted to allow relative vertical movement. The bracket 5 has a transverse slot with notches whereby the direction of alignment of the frames can be adjusted, Fig. 6 (not shown). The roof bars of the frames also include resilient restoring devices for the props, Figs. 2 and 3 (not shown). For a modified arrangement applicable to frames having articulated roof bars, Figs. 8, 9 and 10, (not shown), should be referred to.
Patent ES-336148-A1 (ES)
Title: New Amides of Aliphatic Carboxylic Acids
IPC: C07D213/75
Filed: 1967-01-27
Abstract: Novel amides of Formula I in which R 1 -CO- is the acyl radical of an alkanoic, alkenoic or alkapolyene acid having 6 to 14 carbon atoms, R 2 is halogen, C 1-4 alkyl, C 1-6 alkoxy, C 1-4 alkylthio, C 1-4 alkenyloxy, C 1-4 alkanoylamino or C 1-5 (alkoxycarbonyl) and R 3 is hydrogen or C 1-4 alkyl, and their acid addition salts, are prepared by reacting an acid of formula R 1 -COOH, or a reactive functional derivative thereof, with a compound of Formula II or a reactive functional derivative thereof, and, if desired, adding bromine to an alkenoic or alkapolyene acid amide obtained, purifying the addition product by crystallization or another usual process and then debrominating, and/or, if desired, converting a compound obtained of Formula I into an acid addition salt. In a modification of this process, a saturated bromine addition compound of an alkenoic or alkapolyene acid having 6 to 14 carbon atoms, or a reactive functional derivative thereof, is reacted with a compound II and the product is debrominated in known manner. The compounds I in which R 2 is C 1-4 alkanoylamino, can also be prepared by alkanoylation of the corresponding free amino compounds. p-Nitrophenyl 10-undecanoate is prepared by reacting p-nitrophenol with 10-undecenoic acid. N - (5 - amino - 2 - pyridyl) - 10 - undecenamide is prepared by reacting 2-amino-5-nitropyridine with 10-undecenoyl chloride, reducing the resulting N-(5-nitro-2-pyridyl)-10-undecenamide. Pharmaceutical compositions having antiviral and tumour inhibiting properties, for oral, parenteral, rectal or topical administration, comprise a compound I, or an acid addition salt thereof, together with a carrier.
Patent ES-336983-A1 (ES)
Title: Pantograph copy milling machine has a structure counterbalanced for vertical movement
IPC: B23Q11/00
Filed: 1967-02-02
Abstract: A copy milling machine has a pantograph assembly mounted for vertical sliding movement on a structure 6 which is itself vertically slidable on the machine column 2, the pantograph assembly being counterbalanced with respect to the structure 6 while the structure 6 is separately counterbalanced with respect to the machine column. The pantograph assembly includes a slide member 11 having a rod 23 which projects through a slot 21 into the casing 6, being attached therein to a flexible band 25 by which the weight of the pantograph assembly is transmitted to an adjustably tensioned counterbalance spring 32. The structure 6 may be balanced by a counterweight.
Patent ES-342328-A1 (ES)
Title: Functional fluid containing azo benzene derivatives as antioxidants
IPC: C09K19/00
Filed: 1967-06-26
Abstract: 3,31-diphenoxyazobenzene is prepared by refluxing a mixture of 90 grams zinc dust, 120 grams of a solution of 50% KOH in water, 600 ml. of ethanol and 48 grams of m-phenoxynitrobenzene for 8 hours, filtering off the zinc dust and cooling the solution to crystallize. The 3,31-diphenoxyazobenzene is recrystallized from an acetone-ethanol mixture. 3,31-Biphenylmercaptoazobenzene can be prepared by the reduction of m-phenylmercapto nitrobenzene and 3,31-(m-phenoxyphenoxy)- azobenzene can be prepared by the reduction of 3-(m-phenoxyphenoxy)-nitrobenzene.
Patent ES-342955-A1 (ES)
Title: Device for guiding and holding straightened bars of a ferromagnetic material
IPC: B21F11/00
Filed: 1967-07-12
Abstract: In a device for guiding and holding bars 10 in a groove 3 of a guide rail 2 by spaced apart magnets 5, the bar is pushed from the groove by ejector devices 15. In one embodiment, a bar 10 from a straightening machine 13 is guided along the V-shaped groove 3 between ledges 11, 12 until its forward end abuts a stop 19, whereupon a shear 14 is caused to operate. The cut bar is then ejected from the groove 3 into a receptacle 23 by ejector pins (16), (Fig. 3, not shown), connected to the pistons (21) of the ejector devices 15. The permanent magnets 5 may be replaced by electromagnets (105), (Fig. 4, not shown).
Patent ES-343528-A1 (ES)
Title: Particular polishing apparatus having a vertical working vessel
IPC: B24B31/02
Filed: 1967-07-28
Abstract: Apparatus for working, in particular polishing, articles comprises a platform 4 rotatable about a first vertical axis xy and at least one working vessel 11 mounted on said platform to rotate about a second vertical axis x 1 y 1 spaced from the first axis, a transmission system 18 connecting a first fixed toothed wheel 3 centred on the first axis and a second movable toothed wheel 17 centred on the second axis and integral with the vessel so as to rotate the vessel about the second axis when the platform rotates about the first axis, the bottom 21 of the vessel being at least partially inclined relative to the horizontal, so as to produce alternating vertical and horizontal movement of the contents of the vessel. The bottom 21 may be corrugated or conical. The vessel 11 is preferably hexagonal or octagonal and has a lining 22 of plastic, rubber &c. To balance the apparatus a number of vessels may be uniformly arranged around the axis xy. When in operation, the vessel 11 is closed by a lid. An emptying aperture 23 leading to a spout 24 is closed by a door 25. A passageway 26 leads from an aperture 27 at the lowest point of the bottom 21 to a tube 28 coaxial with the toothed wheel 17 and extending through an opening 29 in the platform 4 into a fixed collector 31 having a discharge opening 32. To rinse during operation, water is supplied through an inlet in the centre of the lid.
Patent ES-344045-A1 (ES)
Title: Benzenesulphonyl-ureas and process for their manufacture
IPC: C07C303/36
Filed: 1967-08-11
Abstract: Novel compounds of the general formula and their physiologically tolerable salts with bases, for example sodium salts, wherein X represents a chlorine or bromine atom or a methyl group linked to the 4- or 5-position with respect to the carboxylic amide group, preferably a chlorine atom, and Y represents a hydrogen atom or a methyl group are prepared by one of the following methods: (a) Reacting a benzenesulphonyl-isocyanate, -carbamic acid ester, -thiolcarbamic acid ester, -urea, -semi-carbazide or -semicarbazone carrying the substituent of formula in the p-position with an amine carrying the substituent of Formula III or a salt thereof (b) reacting a sulphonamide of the formula or a salt thereof with an isocyanate, carbamic acid ester, thiolcarbamic acid ester, carbamic acid halide or urea carrying the substituent of Formula III (c) hydrolysing a correspondingly substituted benzenesulphonyl-isourea ether, -isourea ester, -isothiourea ether, -parabanic acid or -haloformic acid amidine (d) adding water on to a correspondingly substituted carbodiimide (e) replacing the sulphur atom in a correspondingly substituted benzene-sulphonyl-thiourea by an oxygen atom (f) hydrogenating a corresponding benzenesulphonyl-urea containing, in the molecule, an unsaturated linkage and (g) introducing by acylation the radical of formula into a benzenesulphonyl-urea of the formula and, if desired, converting the resulting compound into a physiologically tolerable salt thereof by reaction with a base. N - [4 - (beta - <2 - methoxy 5 - chloro - benzamido > - ethyl) - benzenesulphonyl] - N1 - acetylurea is prepared by acylation with acetic acid anhydride of the amine. N,N1 - bis - 4 - [beta - < - 2 - methoxy - 5- chloro - benzamido > - ethyl) - benzenesulphonyl]- urea is prepared by treatment of the corresponding carbamic acid with ammonia in the presence of the corresponding sulphonamide. N - [4 - (beta - < 2 - methoxy - 5 - chloro - benzamido > - ethyl) - benzenesulphonyl] - 3 - cyclohexyl-parabanic acid is prepared by reaction of N - cyclohexyl - parabanic acid and 4 - (beta- [2 - methoxy - 5 - chloro - benzamido] - ethyl)- benzenesulphochloride. N - [4 - beta - < 2 - methoxy - 5 - chloro - benzamido > ethyl) - benzenesulphonyl] - N1 - cyclohexyl-isothiourea methyl ether is prepared by reaction of cyclohexylamine and N1[4-(beta-<2- methoxy - 5 - chloro - benzamido > ethyl) - benzenesulphonyl] - imino - dithiocarbonic acid dimethyl ester which is itself prepared by reaction of dimethyl sulphate on the potassium salt of the corresponding dithiocarbonic acid. Pharmaceutical compositions in conventional form for oral or parenteral administration useful in treating diabetes comprise an above novel compound and a suitable pharmaceutical carrier.
Patent ES-344335-A1 (ES)
Title: Supplemental Fuel System.
IPC: F02D19/10
Filed: 1967-08-22
Abstract: A supplemental fuel system is adapted to be operatively associated with a diesel engine having intake and exhaust systems 15 17, and comprises a source 9 of gaseous fuel, a demand regulator 31 with high and low-pressure chambers 41, 43, the gaseous fuel being normally prevented from entering the low-pressure chamber 43 by means 51 responsive to a pressure differential between the chambers, a conduit 45 connecting the low-pressure chamber to the intake system manifold and providing a passage for delivery of gaseous fuel to the intake system, a secondary conduit 63, a connecting conduit 73 and an atmospheric conduit 67 in communication with each other, an electricallyoperated valve 77 normally disposed to prevent communication between the atmosphere and the connecting conduit 73, and an electrical circuit 35 including means 83 responsive to engine load to cause said valve to connect the atmosphere with the conduit 73 and create a pressure differential between the chambers 41, 43. A diaphragm 39 is thus moved downwardly to cause an arm 55 to pivot a lever 49 and raise the means 51 to allow gaseous fuel to enter the conduit 45. A screw 60 determines the maximum fuel-flow while nozzles 75 restrict the rate of response and hence gas surges in the system. The means 83 may be a bi-metallic switch. In a modification, both conduits 63 and 73 are connected to atmosphere via the electrically-operated valve.
Patent ES-346028-A1 (ES)
Title: Pneumatic tires and adaptable rims therefor
IPC: B60B21/02
Filed: 1967-10-13
Abstract: A wheel rim and pneumatic tyre assembly comprises a concave rim 1 receiving complementarily-shaped beads 5, the rim subtending an angle of not more than 150 degrees and the bead supporting portions not less than 10 degrees at a common arc 2. The rim may be split and may have annular steps positioned to support the toes of the beads. In another arrangement, the tyre is located on the rim by sidewall projections abutting the rim edges 7. A safety ring of expanded elastomer, e.g. polyurethane with airtight cells, may be fitted within the tyre between the bead ends. In a modification, the diameters of the rim edges 7 are different. The tyre beads may be reinforced either with bead wires or with extra plies in the bead regions.
Patent ES-346909-A1 (ES)
Title: Electrophotographic method and member for contact printing of relatively opaque documents
IPC: G03G13/00
Filed: 1967-11-08
Abstract: An electro-photographic contact exposure method comprises superimposing a document on a photo-conductive layer having a backing e. g. of aluminuim of relectivity at least 0À8 and exposing the document to light. The photo-conductive layer absorbs less than 30% of the energy of the light waves during a single unidirectional pass and the product of the reflectivities of the backing and the document to be copied is at least 0À25. The light waves are reflected back and forth between the backing and the document thus intesifying the image.
Patent ES-352791-A1 (ES)
Title: Automatic tape head indexing device
IPC: G11B5/48
Filed: 1968-04-16
Abstract: A system of switches is incorporated in a multi-track tape cartridge apparatus to automatically move the head assembly to a predetermined track position upon removal of the cartridge. As shown, an eight-track stereo cartridge is loaded into a recess 12 and engages a sensing arm 48 to operate a switch 50 thereby closing contacts 50a to energize the capstan motor 10, and opening contacts 50b so that a solenoid 35 is isolated. Upon removing the cartridge, the motor is de-energized and contacts 50b are closed to complete the circuit to solenoid 35 via normally-closed switches 54, 58. The solenoid armature 37 is retracted and partially rotates gear 38 connected to a face cam 30 engaged by a follower 28 coupled to the head assembly 22. At its innermost position, an arm 70 fixed to the armature 37 opens switch 54 to permit spring 42 to extend the armature again and thereby complete the rotation of the cam 30 to the next head position. This procedure is repeated until a further switch 58 is opened by the cam 30 or the head assembly when it reaches a predetermined position, e.g. at the first track. Contacts 45 are bridged by a conducting portion at the end of each track to shift the head 23 to the next track position, and manual track selection may be effected by depressing a (remote) switch 80 the appropriate number of times. Alternative constructions of switch 58 are described (Figs. 4, 5, not shown), and of switch 54 (Fig. 6, not shown).
Patent ES-357439-A1 (ES)
Title: Spring forming apparatus and process
IPC: B21F3/04
Filed: 1968-08-21
Abstract: A method of forming a spring from a wire comprises first uniformly circumferentially stressing the wire and secondly controlling the shape assumed by the stressed wire. Apparatus for carrying out the method is in the form of a dual machine for winding clockwise and anticlockwise springs and each includes a vertical straightener 27, horizontal straightener 28, electrically driven feed rollers 32, 33 for pulling the wire 18 off a spool 24 and coiling the wire into three or four loops within a housing 36 wherein a sensing arm 40 controls the speed of the feed rollers so that the wire is fed at a constant rate to a spring forming mechanism 50. From the housing 36 the wire passes through table 22 via shoot 45 and is lapped around a grooved wheel 46 and through a guide 18 to the mechanism 50 supported on the table 22. The mechanism 50 comprises an upper and lower platen 52, 53 respectively and an oil tray 54 which rotate in unison with respect to a base 51 under power supplied by motor 60 via belt and sprocket gearing. A tubular shaft 55 is suspended from the platen 53 and receives the wire guide 18 so that rotation of the platen shaft and guide imparts a longitudinal twist to the wire. Extending upwardly from the platen 52 is a stanchion 59 about which the spring is guided and which is geared to remain stationary with respect to the base 51 despite rotation of the platen 52. Also extending from the top of platen 52 are a feed wheel 57 and a bias wheel 58 embraced by a band 145 the feed wheel rotation being generated by the rotation of platen 52 in a planetary gear system whose ratio can be adjusted to alter the number of revolutions of the platen 52 for each revolution of the feed wheel 57. The wire from the guide 18 passes through the lower and upper platens 53, 52 via oil proof couplings and is directed into a groove 140 in the feed wheel 57 where it is trapped by the band 145. A scraper 146 keeps the band clean and scrapers 148, 149 keep the grooves in the feed wheel free from dirt. As it passes from the feed wheel 57 the wire tends by itself to form into a coil or spring around the stanchion 59 the diameter of the coil being restrained by adjustable guide rollers 161, 162 and 163 (Fig. 8). Rollers 167 and 168 act as pitch controllers. Coil rotational sensing plates 175 co-operating with an electronic sensor 180 control the planet gearing to correct for any undesired rotation of the spring as it is being formed. In a modification the mechanism 50 may include means for winding springs having variations in pitch and/or diameter (Fig. 15). Such means include a cam 208 (Fig. 12) mounted on the shaft of the feed wheel 57 said cam through lever mechanism adjusting the position of the control roller 1631 mounted on a rocker arm 202. The pitch control roller 1681 is similarly controlled from a cylindrical cam 220 on the feed wheel 57.