baber/WOPTO huggingface dataset:
Patent ES-334508-A1 (ES)
Title: Method of operating extendable and retractable stabilising stays or props of public works vehicles and an hydraulic system for carrying out said method
IPC: E02F3/42
Filed: 1966-12-14
Abstract: In an hydraulic system for operating at least two groups of extendable and contractable stabilizing stays 3, 4 of an earth working vehicle, the stays are attached to double-acting hydraulic rams 101, 102 arranged in at least two groups, preferably at opposite ends of the vehicle, the rams of each group (only one of each of which is shown) are fed with fluid in parallel and independently of the other group(s) through a single distributer 104, and two conduits 110 and 111 are provided each leading to one group and each having two branch conduits 110a, 110b or 111a, 111b one of which is provided with a calibrated main valve 115 or 118 while the other is provided with a non-return valve 116 or 119 acting in the opposite direction to its associated main valve. Lines 113, 114 lead to rams connected to any further groups of stays. The lines 111 and a return line 109 include controllable normally non-return valves 117 and 120. To extend the stays the valve 104 is raised directing pressure fluid through the lines 107 and 109, the valve 117 and the line 101a to first extend the rams 101. When the rams 101 are fully extended the line pressure increases until the calibrated valve 118 opens when the rams 102 are extended until all the stays engage the ground when the line pressure again rises until a relief valve 122 opens. To retract the stays the valve 104 is lowered when pressure fluid is supplied through line 112 first opening the valve 120 for flow in its reverse direction to permit fluid from the left hand side of the rams 102 to return to a receiver 105 and then entering the right hand side of the rams 102. When the rams 102 are fully retracted the line pressure rises to open the valve 115 and hence to open the valve 117 for flow in its reverse direction and to retract the rams 101. A further line 102a 1 may be provided through which further rams may be extended simultaneously with the rams 102, the retraction of the further rams being controlled by a controllable valve 120a controlled by a special element or by a pressure other than that in the line 112.
Patent ES-337099-A1 (ES)
Title: Process for the technical separation of sugar mixtures
IPC: C13B20/14
Filed: 1967-02-21
Abstract: Mixtures of sugars are separated by contacting an aqueous or aqueous/alcoholic solution of the mixture with a cation exchange resin which is charged with hydrazine, to form the corresponding sugar hydrazones and recovering the component sugars by fractional hydrolysis of the hydrazones. It is preferred to use a cation exchange resin which is also charged with hydrogen ions, e.g. equimolar amounts of hydrogen ions and hydrazine ions. The temperature at which contact and hydrolysis are effected depends on the particular sugars, each of which form hydrazones of varying hydrolytic stability, e.g. fractional hydrolysis of invert sugar hydrazones is carried out at 40-80 C. to separate glucose and fructose. The process is conveniently effected on a column of cation exchange resin, fractional hydrolysis being effected by elution with water. The eluate fractions contain either the pure sugar component or are enriched in the required component which can be isolated by crystallization. Examples describe the separation of glucose and fructose from invert sugar, fructose and galactose from mixture thereof, sorbitol and glucose from a mixture thereof and pure lactulose from a mixture of lactulose, galactose and lactose.
Patent ES-340022-A1 (ES)
Title: Potato Dehydration Process and Product.
IPC: A23L19/12
Filed: 1967-04-29
Abstract: A process for producing a permeable dehydrated potato piece rapidly reconstitutable without loss of piece identity comprises (a) producing an aqueous dough having a 17-30% by wt. solids content, the solids content comprising not less than 80% by wt. undamaged separated potato cells, extra cellular starch including some gelatinised starch and comprising added raw starch (e.g. corn starch) in an amount not less than 6% by wt. of the total solids, and any desired additives (b) heating the dough to above 170 F. to gelantinise the raw starch, (c) forming the dough into pieces (e.g. by extrusion) before or after step (b), (d) predrying said pieces substantially out of contact with one another to remove surface moisture to prevent them adhering to one another, and (e) finally drying at a rate to prevent case hardening, to a moisture content of about 7% by wt. The dough may comprise potato granules or flakes. The gelatinised starch may be produced in the production of the separated potato cells as a result of some of the cells breaking during a cooking step to give gelatinised starch. The additives may be antioxidants, sulphite salts, calcium salts and sugar. The starch may be gelatinised using steam. The pieces may be air dried.
Patent ES-343375-A1 (ES)
Title: Method for producing metal fiber webs on a papermaking machine
IPC: H01M4/64
Filed: 1967-07-24
Abstract: A composite sheet comprises a metal fibres layer of nickel or stainless steel, supported on and intermingled at their interface with a supporting layer of cellulosic fibres such as rag or wood pulp, synthetic pulp, synthetic organic fibres such as acrylic, nylon, polyester and rayon, vegetable fibres such as cotton linters, ramie, hemp, sisal and mitsumata or glass fibres. The sheet is produced by depositing from aqueous suspension the supporting layer followed by the metal layer onto the already formed supporting layer. The forming mesh of the paper making machine is thus protected from damage by the metal fibres by the supporting layer which can later be removed by burning the formed sheet. A second supporting layer may be deposited after and on top of the metal layer, to protect the press and calender rolls of the papermaking machine.
Patent ES-348478-A1 (ES)
Title: Vertical spray driers
IPC: B01D1/18
Filed: 1967-12-21
Abstract: In a spray drier of the vertical downflow type, the top section of the drying chamber is of parallelopipedal shape, the bottom section is of downwardly-tapering prismatic shape, and each end wall is made up of a flat panel which is rectangular at the upper section 1 and is triangular at the lower section 2. The nozzles (not shown) for supplying the liquid to be dried are spaced across the length of the top part of the chamber and hot drying air is admitted through duct 5. The sprayed material and the airstream filaments flow in parallel laminae down the chamber. The dried powder is discharged through device 6, which may be a fluidized bed or a conveyor-worm. The drying air is withdrawn from the chamber through ducts 8 and 9. The interior of duct 8 communicates with the chamber through a longitudinal slot (or a series of apertures) which extends over the bottom of the duct.
Patent ES-358326-A1 (ES)
Title: Perforated cutting foil or plate for shavers and method for making
IPC: B26B19/38
Filed: 1968-09-12
Abstract: A perforated cutting foil for dry shavers comprises a support layer 1 having perforations 2 formed with raised cutting edge 3 and coated with a layer 4 of bearing material on the side of the foil which when fitted in the shaver is in contact with a cutting blade. The layer 4 of bearing material, such as tin, is deposited, i.e. electrolytically or by evaporation on a layer of metal (11, Fig. 2) which has first had its surface passivated. A further metal layer, such as - nickel, is electrolytically deposited on the unpassivated surface of the layer 4 of bearing metal. Since the surface of the layer (11) is passivated the cutting foil made of bearing metal 4 and the supporting layer 1 is readily removed therefrom. If desired, a layer 5 of a hard metal may be deposited on the outer surface of the layer 1.
Patent ES-359214-A1 (ES)
Title: Heat actuated control rod utilizing a cadmium-potassium mixture
IPC: G21C7/06
Filed: 1968-10-16
Abstract: A control rod for a two-region nuclear reactor in which one region is a fast region and the other is a thermal region comprises a container with capillary means on its inner surface end enclosing a mixed condensable vapour of Cd and K. In the embodiment described, one end of the control rod is in the fast inner region of a two-region reactor and the other end is in the thermal blanket region, the fast region of the reactor being operated at the temperature (775 50 C.) at which the two condensable vapours (Cd and K) have equal vapour pressures. An increase in temperature in the fast region will, however, preferentially distil Cd from the fast region to the thermal region and the neutron absorption in this region will increase rapidly, thereby bringing down the neutron flux and temperature of this region. This is due to the fact that Cd has a considerably higher absorption cross-section for thermal neutrons than for fast neutrons. Conversely, a decrease in temperature in the fast region will preferentially distil K into the thermal region (K has about the same low absorption cross-section for fast as for thermal neutrons) and the preferential migration of Cd into the fast region will increase the neutron flux and temperature of the thermal region. The control rod automatically tends to maintain the two-region reactor at about the same neutron flux and temperature. The fast region may be operated at a temperature considerably above 775 C., for example 1500 to 1800 C., if the fast region end of the control rod is suitably insulated by a corrosion-resistant material so that its temperature is in the 775 50 C. range.
Patent ES-360163-A1 (ES)
Title: Strain-gaged treadle scales
IPC: G01G3/14
Filed: 1968-11-12
Abstract: Weighing apparatus, e.g. for measuring the load on vehicle wheels, includes a loading platform 15 suspended in a support 17 by members 19, 20, Fig. 3 (not shown), the portion 19a of member 19 being secured by bolts to the platform surface 15s and the portion 19b being secured by bolts to the support 17. The portion 19c of member 19 which interconnects the portion 19a, 19b is provided with a number of slots 1.9d-19g which divide portion 19c into a number of shearresponsive portions 19h-19j and which each have shear-responsive strain gauges 23a-23f banded therein, the strain gauges 23a, 23c, 23f being responsive to compression effects and the strain gauges 23b, 23d, 23e responsive to tension effects. These gauges may be connected in a bridge circuit to measure only vertical loading forces. Strain gauges 31, 32 are provided to indicate any bending effect of the load and to indicate when the load is situated centrally on the platform. The slots 19d-19g may be hermetically sealed by seals (36, 37), Fig. 11 (not shown), and support irregularities may be evened out by mounting the members 19, 20 on an intermediate support (17') which is mounted on the main support (17<11>) through a pressure pad (40), the space 21 between the platform and the portion 19a being filled with an elastomeric material (37), and the space (38) being portion 19b and the intermediate support (17<1>) with elastomeric material (39), Fig. 12 (not shown). In an alternative, Figs. 13, 14 (not shown), the apparatus is portable and the platform (42) is suspended in the support (43) by a number of pins, (44, 45) which each have a portion of reduced cross-section for mounting strain gauges (44a, 44b, 45a, 45b).
Patent ES-360675-A1 (ES)
Title: Motor Vehicle Friction Clutch
IPC: F16D13/72
Filed: 1968-11-25
Abstract: In a friction, clutch having a disc spring 11, Fig. 2, deformation of the spring is aided by fulcra 17, 16 which are formed respectively on a strap 18, riveted to the clutch cover 3 and on the cover itself. The straps 18 are located in radial slots in the pressure plate 10 and pass through holes 21 in the cover. Straps 14 hold the spring in contact with the pressure plate 10 and ventilating holes 27 are provided in the cover 3. In a second embodiment, Fig. 8, the spring 11 is attached to the cover 3 and pressure plate 10 by projections 31 carried by the fulcra 16, 17. The projections 31 are formed by embossing one of the fulcra or by riveting them together in such a way as to permit axial movement. A spring 33 with clip-portions 34 holds the disc 11 in contact with the pressure plate 10.
Patent ES-362963-A1 (ES)
Title: Method and apparatus for the manufacture of mirrors
IPC: B29C63/02
Filed: 1969-01-27
Abstract: A plane mirror having a reflecting surface of a thin flexible sheet material 18 is formed by stretching the material across an annular backing plate 10 and trapping the edges of the sheet between the plate 10 and an outer ring 16. During assembly the sheet 18 is supported an annular resilient member 33 having a sheet rubber top surface 34, and the backing plate is mounted beneath the sheet on a support 32. The outer ring 16 is mounted in a recess 36 of a pressure plate which, when pressed a ring 34, traps sheet 18 and compresses the resilient ring 33. Continued downward movement of the pressure plate tensions the sheet across the backing plate and finally fits ring 16 in position. A sharp edge 15 on plate 10 co-acts with the outer ring 16 to cut away the peripheral sheet portion.
Patent ES-370407-A1 (ES)
Title: Method and apparatus for the production of sheet glass
IPC: C03B13/16
Filed: 1969-08-11
Abstract: Process and apparatus for improving the smoothness and planarity of a sheet or ribbon of glass having a surface temperature of about 780 DEG to 920 DEG C. and having a viscosity of the order of 106.5 to 105 poises just before passing to and between a pair of metallic spaced smoothing and reducing rollers maintained uniformly at a surface temperature selected from a range of about 400 DEG to 650 DEG C. and by which the ribbon is reduced to 75 percent to 95 percent of its thickness prior to entry between the rollers. The surface temperature of the rollers is selected inversely as the temperature of the glass, within the ranges stated, and as shown upon the graph of Figure 1.
Patent ES-372773-A1 (ES)
Title: Process for obtaining 3-trans-dimethylamino-4-phenyl-4-trans-carbethoxy-{66 {11 -cyclohexene
IPC: C07C/
Filed: 1969-10-22
Abstract: The separation of 3-trans-dimethylamino-4-phenyl-4-trans-carbethoxy- DELTA 1-cyclohexene from a mixture comprising 3-trans-dimethylamino-4-phenyl-4-trans-carbethoxy- DELTA 1-cyclohexene and 3-cis-dimethylamino-4-phenyl-4-cis-carbethoxy- DELTA 1-cyclohexene and the partial isomerization of 3-cis-dimethylamino-4-phenyl-4-cis-carbethoxy- DELTA 1-cyclohexene into the trans- isomer is described. In the separation procedure, the mixture containing 3-cis-dimethylamino-4-phenyl-4-cis-carbethoxy- DELTA 1-cyclohexene and 3-trans-dimethylamino-4-phenyl-4-trans-carbethoxy- DELTA 1-cyclohexene is mixed, in a suitable organic solvent, with oxalic acid or fumaric acid at a temperature up to reflux temperature until the reactants become dissolved in the solvent. When a solution is obtained, it is cooled to a temperature below about 10 DEG C. to facilitate the precipitation of the oxalic acid or fumaric acid salt of 3-trans-dimethylamino-4-phenyl-4-trans-carbethoxy- DELTA 1-cyclohexene. Partial isomerization of 3-cis-dimethylamino-4-phenyl-4-cis-carbethoxy- DELTA 1-cyclohexene involves the step of heating the cis- isomer with an organic acid, or with an anhydride of an organic acid, at a temperature within the range of from about 60 DEG C. to about 130 DEG C. for a period of time sufficient to produce a mixture of the cis- and trans-isomers.
Patent ES-374269-A1 (ES)
Title: Sound reproducing apparatus
IPC: G11B33/06
Filed: 1969-12-05
Abstract: A toy phonograph wherein mechanical vibrations of the tone arm in response to tracking by its stylus of a sound groove in a rotating record are transmitted to the loudspeaker diaphragm by means of a two-armed follower which is pivotably mounted on the tone arm and has a shorter arm engaging a contact plate on the central portion of the diaphragm and a longer arm which is biased by a spring to maintain the shorter arm in engagement with the contact plate. The ratio of the pressure with which the stylus engages the record to the pressure between the shorter arm and the contact plate is about three to one and the ratio of the lengths of the two follower arms approximates the ratio of the force with which the stylus bears against the record to the average force with which the spring acts on the longer arm. The point of engagement between the shorter arm and the contact plate of the diaphragm is in line with the axis of the stylus.
Patent ES-375296-A1 (ES)
Title: Process for the production of polyamide foam
IPC: C08G69/18
Filed: 1970-01-09
Abstract: A polyamide foam is made by dissolving a gas under pressure in a molten polymerizable mixture of a lactam, e.g. #-caprolactam, a basic catalyst, e.g. sodium formate, and an activator, e.g. an organic diisocyanate, prepolymerizing the gasified mixture by passage under pressure through a tube whilst heating it to polymerization temperature, and releasing the pressure by discharging the mixture from the tube into a preheated or insulated mould in which the polymerization is completed. If polyisocyanates are used as the activator, polycarbodiimides are produced with splitting off of carbon dioxide, which acts as blowing agent. The dissolved gas may be carbon dioxide or nitrogen. In the examples the polymerizable mixture also contained silica gel and a polysilicone polyether block polymer (as pore regulator), and the activator was hexamethylene diisocyanate.
Patent ES-376519-A1 (ES)
Title: Control for power take-off
IPC: B60K17/28
Filed: 1970-02-12
Abstract: A vehicle has a P.T.O. transmission comprising a main drive shaft rotatable at a speed proportional to the ground speed of the vehicle, an auxiliary shaft rotatable at a speed proportional to the speed of the engine, and a P.T.O. shaft selectively connectible to each of said shafts through first and second clutches, respectively. Clutch operating means have a first-clutch operating position, a second-clutch operating position and a neutral position for selectively providing two P.T.O. speeds or neutral. A brake on said P.T.O. shaft is operable by the clutch operating means when the latter is the neutral position to immobilize the P.T.O. shaft and enable connection of implement drive shafts.
Patent ES-378354-A1 (ES)
Title: Open-end spinning devices
IPC: D01H11/00
Filed: 1970-04-08
Abstract: An open end spinning device comprising a spinning rotor having a spinning chamber provided with an internal fiber collecting surface to which fibers in discrete form are fed through a fiber feed passage and from which they are removed to form a twisted yarn which is continuously withdrawn from the spinning chamber through a yarn delivery passage. The rotor has at one end thereof closure means formed with a cylindrical or generally cylindrical penetrating portion which penetrates into the chamber of the spinning rotor in concentric relation to the spinning axis of the rotor and through which the fiber feed passage and the yarn delivery passage pass. The yarn delivery passage passes through the penetrating portion and opens into the end face of the penetrating portion, and the fiber feed passages passes through the penetrating portion and opens into a recess formed in the penetrating portion at such a position that fibers from the end of the fiber feed passage are directed to the fiber collecting surface of the spinning rotor, the recess being so formed as not to extend around the whole of the circumference of the penetrating portion.
Patent ES-378888-A1 (ES)
Title: Billet cooling method for continuous casting
IPC: B22D11/124
Filed: 1970-04-13
Abstract: A method of cooling a continuous casting 2 of polygonal cross-section issuing from a continuous casting mould comprises wetting the surface of the cast strand directly it leaves the mould with a coolant liquid sprayed through atomizing nozzles wherein the regions on each side of the strand adjacent the edges 3 are wetted by nozzles having a relatively high average coolant delivery rate per wetted unit area, the surface 9 between the edge regions being wetted by nozzles of relatively lower average coolant delivery rate.
Patent ES-381094-A1 (ES)
Title: Thermogenerator with thermoelectric elements in exhaust ducts
IPC: H01L35/30
Filed: 1970-06-24
Abstract: the hot heat exchangers of a plurality of p and n conductivity thermoelement legs positioned between hot and cold heat exchangers are housed in a combustion chamber and are heatable by combustion gases in the chamber. An exhaust duct for the combustion chamber is coupled thereto in a manner whereby the flow direction of the combustion gases in the combustion chamber is reversed and at least part of the combustion gases again flows over the hot heat exchangers.
Patent ES-383591-A1 (ES)
Title: Vibrating roller
IPC: E01C19/28
Filed: 1970-09-12
Abstract: A vibrating roller mechanism that includes a roller drum and a vibrating device mounted on the drum to form a tuned two-mass system in resonance. This arrangement provides for a high amplitude of vibration of the roller drum with the use of a vibrating device of relatively small mass.
Patent ES-385669-A1 (ES)
Title: Partially overlapping hologram motion picture record
IPC: H04N5/89
Filed: 1970-11-18
Abstract: In a motion picture record in which successive frames of a motion picture are manifested by a series of successive holograms, such as phase holograms, greater redundancy and a saving in record material are achieved by having each one of the holograms partially overlap both the hologram which immediately precedes and the hologram which immediately succeeds that hologram in the series. The problem of unwanted spatial beat frequencies, which results from such overlap and is dependent on the amount of such overlap, can be eliminated by restricting the amount of overlap to a value such that the minimum spatial beat frequency is less than the ultimate resolution of the playback system (e.g. closed circuit television) employed in reconstructing the motion picture from the motion picture record.
Patent ES-391289-A1 (ES)
Title: 6-methylene-tetracyclines prepn - via the 11a-halo-6,12-hemiacetal
IPC: C07C233/00
Filed: 1971-05-18
Abstract: Title cpds. are pred. by halogenation of a soln. of a tetracycline salt to form that 11a-halo-6,12-hemiacetal under conditions of temp. (pref. -10 to +20 degrees C.) and pH (pref. 3-5) such that the hemiacetal crystallises spontaneously in the enol form and is converted to an acid salt, which is dehydrated to give the 11a-halo-6-methylene tetracycline and this is dehalogenated to yield the 6-methylene tetracycline.
Patent ES-398536-A1 (ES)
Title: Amino-type curing agents for epoxy resins, and their preparation and use
IPC: C08G59/64
Filed: 1971-12-31
Abstract: Epoxy resins are cured by mixing and reacting therewith a compound of the formula where n is a number from 0 to 4 and R is a group -R1-C(CH 3 ) 2 -R1-, where R1 is a para-connected unsubstituted six-membered carbocyclic ring. In examples the epoxy resins cured are the di- and polyglycidyl ethers of 2,2 - bis - (4 - hydroxyphenyl) propane and 2,2 - bis - (4 - hydroxycyclohexyl) propane, diglycidyl - hexahydrophthalate, -tetrahydrophthalate, -phthalate, -isophthalate, -adipate, -azelate, diglycidyl ether and triglycidylisocyanurate. In an example, 2,2-bis-(4-hydroxycyclohexyl) propane diglycidyl ether is prepared by hydrogenating the corresponding phenyl compound over a rhodium-on-carbon catalyst.
Patent ES-412917-A1 (ES)
Title: Extractor for withdrawing or inserting roll-clusters
IPC: B22D11/128
Filed: 1973-03-22
Abstract: An extractor for withdrawing or inserting roll-clusters of the curved roll rack of a continuous-casting machine. The extractor includes a main frame pivotally supported on a horizontal axis at the concave side of the rack. A carriage and drive means therefor are supported on the main frame. The carriage has means for engaging and supporting a roll cluster. The underside of the frame carries a mechanism for aligning the carriage with a cluster above.