baber/WOPTO huggingface dataset:
Patent GB-827903-A (GB)
Title: Improvements in or relating to control systems for garages in which vehicles are parked
IPC: G07B15/04
Filed: 1957-07-09
Abstract: 827,903. Mechanical garages. SPEEDPARK Inc. July 9, 1957 [July 27, 1956], No. 21777/57. Class 78 (4). [Also in Group XVIII] In an automatic parking garage having stalls arranged in vertical tiers, the parking cycle is initiated by withdrawal of a key from switch means associated with each stall, the selected switch operating to supply a signal current which first causes a pick-up device 15 to draw the vehicle into an elevator 14 contained in a tower 13, then moves the tower into alignment with a selected column of stalls and raises the elevator to a selected horizontal level where the pick-up device deposits the vehicle in the selected stall and finally returns the parts 13, 14, 15 to their starting position. Electricallyoperated means (see Group XVIII) measure and indicate the parking period and charges until, when the key is re-inserted by the owner of the vehicle, a delivery cycle is initiated to return the car. Its removal, however, is prevented by a barrier 31 which is removed only after coins totalling the indicated parking charge have been inserted in coin-operated switch means.
Patent GB-924059-A (GB)
Title: Aircraft flight control systems
IPC: G05D1/06
Filed: 1961-06-16
Abstract: 924,059. Automatic control of aircraft. SPERRY RAND CORPORATION. June 16, 1961 [June 23, 1960], No. 21789/61. Class 38 (4). In a system in which the pitch attitude of an aircraft is automatically controlled by signals from a vertical reference defining instrument, signals from a vertical accelerometer which exceed a predetermined value are effective to change the pitch attitude in a sense to decrease acceleration. Automatic control.-To stabilize the pitch attitude of an aircraft, signals from pitch pick-off 48, Fig. 1, of a gyro vertical 46 are applied through a selsyn 53 and amplifier 51 to control a servomotor 20 which adjusts, through reduction gearing, a linkage 14 operating the control valve of a fixed-piston type hydraulic elevator actuator 10. A generator 52, driven by servomotor 20, co-operates with an integrating network to apply both position and rate feed-back signals to amplifier 51. Signals dependent on angular acceleration of the aircraft about its pitch axis are developed by accelerometer 62, integrated at 64 and applied to the torque motor operated control valve of an hydraulic actuator 15 operating on linkage 14 to introduce damping. A potentiometer 18 operated by actuator 15 develops position feed-back signals. During automatic control linkage 14 also adjusts a manual control column 27 through a mechanical coupling 28 to cause it to follow movements of the elevators. Manual control.-Operation of control column 27 to override automatic control causes a pickoff 29 to produce an electrical signal, proportional to the force exerted, which, after modification in dependence on airspeed by a non- linear potentiometer 35 to give variable " feel," is applied to a servomotor system 42 to vary the position of the rotor of selsyn 53, and hence the pitch of the aircraft, at a rate proportional to the force exerted on the control column. The electrical signal produced by the control column is also applied through line 58 to modify the elevator damping. Servomotor system 42 incorporates rate feed-back from a generator G the excitation of which is modified by a cosine function of signals from the roll pick-off of gyro 46 to give the correct " feel " during banked turns. Vertical acceleration limiting and stall prevention.-Signals dependent on vertical acceleration developed by an accelerometer 66 are applied through a circuit 40 which includes biased rectifiers so that if acceleration exceeds predetermined values in each sense, a signal is applied through a line 41 to servomotor system 42 in such sense as to reduce the acceleration and increase the " feel." The last-mentioned signal is also applied through a line 92 to modify the elevator damping. Signals dependent on angle of attack developed by a detector 82 are applied through a gating circuit 84 so that when they exceed a predetermined value the bias of circuit 40 is modified to lower the point at which the vertical acceleration signals become effective and thereby avoid a stall condition. Specifications 612,810, 673,534 and 820,887 are referred to.
Patent GB-1291685-A (GB)
Title: Improvements in and relating to the production of nuclear fuel
IPC: G21C21/04
Filed: 1971-04-19
Abstract: 1291685 Fuel elements BELGONUCLE. AIRE SA and CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE 19 April 1971 [18 Feb 1970] 21807/71 Heading G6C A nuclear fuel rod in the form of a tube filled with compacted granular fuels is made by simultaneously feeding into the tube separate streams of grains, the grains of one stream falling within one size range and the grains of another stream falling within a different size range, vibrating the tube intensively during the filling step with an acceleration of at least 10,000 g., and continuing the intensive vibration after filling the tube while loading the filled fuel column with a variable weight. By this method fuel densities of 85À5% theoretical density may be attained in a reproducible manner. In an example the fuel charge is made up of 60 wt. per cent of 7 to 8 mesh UO 2  grains, 25 wt. per cent of 50 to 60 mesh UO 2  grains, and 15 wt. per cent of a mixture of finer than 270 mesh UO 2  and PuO 2  grains. The three granulometric fractions are fed by a three band feeder simultaneously but separately into a stainless steel tube which is vibrated at a 6 impacts per second frequency. These impacts are produced by the expansion of air compressed to 2À5 kg./cm.<SP>2</SP> producing a 30,000 g. acceleration. A piston loaded with 700 g. is then placed on the powder column and tamping is carried on for one minute at the same vibrator setting. During this stage, the piston is alternately applied and released. An average density of 85À5% theoretical density is finally obtained.
Patent GB-1071604-A (GB)
Title: Process for the purification of alcohols
IPC: C08J11/02
Filed: 1964-05-27
Abstract: Hydrogen halide impurity is removed from an aliphatic alcohol solution by contacting the solution with a hexa-alkyl phosphoric triamide that releases a dialkylamine which reacts with the hydrogen halide.  The preferred hexaalkyl phosphoric triamide is the hexamethyl compound but other compounds in which the alkyl groups are ethyl, propyl, isopropyl, butyl, hexyl or octyl may be used.  The treatment may be carried out, for example, at a temperature from room temperature to the reflux temperature of the alcohol solution.  The process is particularly suitable for treating an aliphatic alcohol solution resulting from the polymerization of an a -olefin in the presence of a halogen-containing ionic catalyst and removing the impurities from the polymer by treatment with an alcohol.  The alcohol solution may conveniently be distilled with the hexa-alkyl phosphoric triamide, the purified alcohol being removed as overhead. An example is given of the purification of isobutyl alcohol.
Patent GB-258075-A (GB)
Title: Improvements in or relating to side cars
IPC: B62K27/02
Filed: 1925-09-01
Abstract: 258,075. Vernon, G. H., Pugh, J. V., and Rudge-Whitworth, Ltd. Sept. 1. 1925. Axles; frame construction; springs, arrangement of.-A frame for a side-car comprises five members connected to form two triangles with a common base and lying in planes making an obtuse angle with one another, the wheel being located at the apex of one triangle the sides of which are extended for attachment to the cycle while the apex of the other triangle is attached to the seat-pillar lug of the cycle. As shown in perspective in Fig. 1, a horizontally arranged triangular structure comprises a resilient axlebar b, as for example described in Specification 233,809, an inclined resilient bar c and a base member a more or less parallel to the cycle. The outer ends of the bars b, c are bent upwardly and provided with apertures to receive the wheel axle h and the inner end of the bar b is similarly bent for attachment to the back fork g of the cycle. The front end of the bar c is atttached to the cycle at c<3>. The second triangle, of which the bar a forms the base, comprises bars f, j secured at f to the seat-pillar lug. The bars b, c are reinforced in the regions of attachment to the members a. f, i by resilient plates b<4>, c<4>. The side-car body is carried, at its front end, on the upwardly crooked end d' of a bar d and, at its rear end, on a transverse spring k connected by a shackle h<4> to the inner end of the wheel axle and to a forked lug k' secured at the common point of connection of the bars a - - d, and f.
Patent GB-240627-A (GB)
Title: Improvements in rubber heels for boots, shoes and other footwear
IPC: A43C13/02
Filed: 1924-09-17
Abstract: 240,627. Crozier, A. A. Sept. 17, 1924. Protectors, construction of.- Rubber heel pads, fixed or revoluble, of original flat design are extended so as to produce a concave under surface by the insertion of a metal ring c unaffected in size by wet or dry weather and covered, so as to be invisible, by a leather pad f. The ring is inserted in a central cavity in the pad and is slightly larger than the cavity so as to produce distortion. The ring may be made in numerous patterns barbed or plain. The ring may be pronged to fix either into the leather or rubber pad or into both. The ring may also be of round or other cross section and may fit into undercut recesses in the rubber pad. The invention set forth in Specification 213,390 is disclaimed.
Patent GB-465199-A (GB)
Title: Improvements in or relating to the manufacture of acetaldehyde by hydration of acetylene and the production of a catalyst for use in this process
Filed: 1935-08-02
Abstract: Acetaldehyde is prepared by subjecting acetylene to reaction with steam in the presence of a cadmium metaphosphate catalyst in the form of a compact mass of microscopic particles.  The volume of steam may be from 2 to 15 times that of the acetylene.  The latter may be pure or diluted with other gases, for example, hydrogen or hydrocarbons such as methane.  Commercial gas mixtures such as are obtained in the cracking of hydrocarbons, and containing say less than 10 per cent of acetylene may be used.  An example discloses the use of an acetylene-hydrogen mixture containing 7,6 per cent of the former. The reaction is effected at 250--350 DEG  C., the gases preheated if desired, being passed over the catalyst contained for example in an iron tube.  The cadmium metaphosphate is prepared by reacting orthophosphoric acid or a substance yielding orthophosphoric acid, for example, an ammonium orthophosphate or a mono- or dialkyl ester of orthophosphoric acid in amount necessary to form acid cadmium orthophosphate, with a cadmium compound, and evaporating water from and heating the reaction product to form the metaphosphate.  Thus, orthophosphoric acid of sp. gr. 1,75 is slowly added to a cream of cadmium carbonate at 60--80 DEG  C., with stirring.  Stirring is continued whilst the mixture is evaporated to a pasty mass.  The product is dried at 250--350 DEG  C., broken into pieces, and preferably heated to incipient fusion.  The particles should be of less than 0,01 mm. diameter.  The catalyst may be reactivated by blowing hot air thereover, if desired after sieving it free from dust.  The catalyst should not contain foreign substances, for example, alkali metal compounds.  For this reason, monosodium orthophosphate cannot be used in its preparation.ALSO:Cadmium metaphosphate in the form of a compact mass of microscopic particles for use as a catalyst in the reaction between acetylene and steam to produce acetaldehyde is prepared by reacting orthophosphoric acid or a substance yielding orthophosphoric acid, for example, an ammonium orthophosphate or a mono- or dialkyl ester of orthophosphoric acid in amount necessary to form acid cadmium orthophosphate, with a cadmium compound, and evaporating water from and heating the reaction product to form the metaphosphate.  Thus, orthophosphoric acid of sp. gr. 1,75 is slowly added to a cream of cadmium carbonate at 60--80 DEG C., with stirring.  Stirring is continued whilst the mixture is evaporated to a pasty mass.  The product is dried at 250--350 DEG C., broken into pieces, and preferably heated to incipient fushion. The particles should be of less than 0,01 mm. diameter.  The catalyst may be reactivated by blowing hot air thereover, if desired after sieving it free from dust.  The catalyst should not contain foreign substances, for example, alkali metal compounds. For this reason, monosodium orthophosphate cannot be used in its preparation.
Patent GB-1471611-A (GB)
Title: Liquid autoxidisable fatty acid esters
IPC: C09D191/00
Filed: 1974-05-17
Abstract: 1471611 Polyesters DULUX AUSTRALIA Ltd 17 May 1974 [18 May 1973] 21995/74 Heading C2C Liquid, non-polymeric, autoxidizable esters of an autoxidizable fatty acid and a polyol also comprising acrylyl or methacrylyl residues, with molecular weight, 1500-3000, A.V. 45- 75 mg. KOH/g. provided by carboxyl groups, 0À8-1À4 acrylyl or methacrylyl groups per molecule, and 3À5-4À5 autoxidizable fatty acid residues per molecule, are prepared by esterifying a polyhydric alcohol with an autoxidizable monocarboxylic fatty acid at a temperature not above 240 C., reacting at least some of the hydroxyl groups with an acid anhydride 120- 160 C., and reacting a portion of the free carboxyl groups with glycidyl acrylate and methacrylate. Polyols may be di- or tri-pentaerythritols, sorbitol and di-, tri-, and tetradimethylol propionic esters of pentaerythritol; the autoxidizable fatty acids may be derived from natural drying oils such as linseed, soya, safflower, cottonseed and tall oils; acid anhydrides to react with the remaining hydroxyl groups may be maleic, phthalic, trimellitic anhydrides and maleinized linseed oil fatty acid; and glycidyl acrylate or methacrylate are used for the final stage. The compositions may be used, together with catalysts and pigments, as paints. Examples describe the reaction of dimethylol propionic acid, linseed oil fatty acid, pentaerythritol or trimethylol propane, maleinized linseed oil fatty acid, diethyl ether of diethylene glycol and glycidyl methacrylate; linseed oil fatty acid, dipentaerythritol, maleinized linseed oil fatty acid, phthalic anhydride, diethylether of diethylene glycol, and glycidyl methacrylate; dimethylolpropionic acid, linseed oil fatty acid, trimethylol propane, trimellitic anhydride, diethyl ether of diethylene glycol and glycidyl methacrylate, and the use of the products as film forming agents.
Patent GB-435022-A (GB)
Title: Improvements in a power-driven vehicle
IPC: B60G21/00
Filed: 1934-02-05
Abstract: 435,022. Vehicle spring-suspension systems. DAIMLER - BENZ AKT. - GES., Untert³rkheim, Stuttgart, Germany. Feb. 5, 1934, Nos. 21996/35 (divided out of 433,202), and 3780/34. Convention dates, Feb. 3, 1933, and May 26, 1933. [Class 108 (ii)] [See also Group XXXI] In power-driven vehicles having rigid axles carrying driven wheels, the axle driving gear, which preferably drives through cardan shafts, is supported on the frame independently of the axle and the rigid axle, according to one feature, is sprung by means of helical, preferably unguided, springs and, according to another feature, is supported in the central longitudinal plane against lateral displacement, but permitting transverse swinging. The axle driving gear casing c is mounted on the frame, cardan driving shafts m being provided. The rigid axle g is jointed at h to the casing c or frame in such a manner that it may swing in a vertical plane but is supported against displacement transversely of the vehicle. Struts i are pivoted to the axle g which is sprung by unguided helical springs k. In a modification, the axle g is so mounted as to be guided vertically and accordingly is provided with an arm g<1>1 provided with a ball member h<1> co-operating with a socket in a slide member h<1>1 arranged to slide vertically in a guide on the casing c.
Patent GB-1016891-A (GB)
Title: Improvements relating to automatic telephone systems
Inventor: TAYLOR JAMES GEORGE
IPC: H04Q5/02
Filed: 1961-06-19
Abstract: 1,016,891. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 15, 1962 [June 19, 1961], No. 22052/61. Heading H4K. In a party line system each subscriber is identified at the exchange by a measurement of the break to make ratio of the impulses generated by his impulse transmitter when the subscriber is setting up a call. The system is particularly described in connection with a two-party line in which one impulse transmitter produces impulses having the conventional 2 : 1 break-make ratio while the other one has a 1 : 2 ratio, and the measuring means comprises two capacitors which are alternately charged by the successive breaking and making of the loop during an impulse train-it being assumed that the initial digit 1 does not occur in the numbering scheme-whence the capacitor having the greater charge indicates which of the break and make portions of an impulse is the longer whereby the identity of the caller is determined. Other methods in which the length of the break and/or the make period are timed are suggested. In response to closure of the loop by subscriber X, say, transistor VT1 and relay H are energized. When the first digit is dialled, the first break period of the impulse train causes VT1 to cut-off and VT2 to conduct whence'relays AP, AS, AT and AA come, up and capacitor C1 is connected to battery. At the end of the break period, relay AA holds in series with BB and BS so that capacitor C2 is now connected to battery. During the next break period AS and AT again come up whence capacitors C1, C2 discharge through winding I of transformer T1, the direction of discharge being dependent upon which capacitor has the greater charge, i.e. on whether the make or the break period is the longer. In the case of the X subscriber, the break period is longer and a pulse is produced in winding II of T1 which is detected at 6. The detector is released by release of relay H and it may be brought into use for each impulse train, in which case the digit " 1 " should not occur at all in the numbering scheme.
Patent GB-1393620-A (GB)
Title: Aeration
IPC: C02F3/16
Filed: 1973-05-09
Abstract: 1393620 Mixing Apparatus SIMONHARTLEY LTD 22 March 1974 [9 May 1973] 22066/73 Heading B1C An aeration tank e.g. for the treatment of sewage effluent, of square or rectangular shape and equipped with at least one rotary surface aerator 12 is provided with a baffle plate 14 on the base 10 thereof adjacent each corner and so arranged as to divert a proportion of the down-currents in the corners of the tank along the side walls in order to prevent the deposition of sedimentary material on the base along said side walls.
Patent GB-900417-A (GB)
Title: Irradiation method of converting hydrocarbons
IPC: B01J19/08
Filed: 1958-07-10
Abstract: Hydrocarbons are irradiated with high energy ionising radiations to a dosage of more than 100,000 rads whilst in the form of a deposit on the surface of a solid having a surface area greater than 1 sq. m/g. which is unreactive under the irradiation conditions, said deposit being 0.1-10 times the monomolecular average thickness (defined). Hydrocarbons exemplified are pentane and a high grade mineral oil, and the products include hydrogen, methane and other hydrocarbons having up to 5 carbon atoms.  The ratios of the products are different from the ratios obtained in bulk irradiation and these ratios vary with the solid chosen and the thickness of the layer of organic substance.  Solid materials specified are silica (in the form of gel particles and as particles of size 0.02, 62 and 100m ), Fe2O3, montmorillonite, attapulgite, metals, metal oxides, metal salts e.g. halides and sulphides, and carbon in the form of activated charcoal and lamp black.  The organic layer may be produced by absorption from the vapour state, or by dissolving the organic in a solvent, contacting the solution with the solid and evaporating the solvent. Irradiation products of greater volatility than the deposited substance may be removed during irradiation by passing a sweep gas through a bed of the solid on which the layer of the substance is deposited or by the use of a selective solvent.  High energy ionising radiations referred to are g -rays, neutrons, X-rays, particle beams and radiations from radioactive sources.
Patent GB-599802-A (GB)
Title: Improvements in or relating to alternating current supply systems for gaseous discharge tubes
IPC: H05B41/232
Filed: 1944-11-10
Abstract: 599,802. Supply systems for space discharge apparatus ; transformers. SOLA ELECTRIC CO. Nov. 10, 1944, No. 22178. Convention date, Nov. 13, 1943. [Classes 38 (ii) and 38 (iv)] An A.C. supply circuit for a gaseous discharge tube 28, Fig. 2, having a high initial breakdown voltage and negative impedance operating characteristic, comprises a transformer 10, Fig. 1, on which the primary 12 is connected to the A.C. source 25, Fig. 2, and the secondary is connected in series with a capacity 30 to the tube 28, the transformer core structure having a high reluctance shunt disposed between the primary and secondary windings to effect relaxation of magnetic coupling between the windings when current flows in the secondary circuit. The transformer core consists of a centre core 11, Fig. 1, having outwardly extending shunt portions 22 separated by small air gaps from oppositely extending portions 18, 19, of upper and lower legs 16 and 17, respectively, of an outer frame, the end portions 14 and 15 of which are notched out to receive the ends of the core 11. Upon energization of the primary winding, a voltage is applied to the tube, substantially equal to the turns ratio voltage of the transformer and sufficient to render the tube conducting. Preferably, the reactance of condenser 30, Fig. 2, relative to the inductance of secondary 13 and the inipedance of the tube 28, is such that series resonance occurs in the secondary circuit when current flows therein, the said current being limited to an optimum value in that the secondary section of the transformer core then operates at maximum flux density and so maintains the current at the said optimum value regardless of variation in the circuit due to the negative resistance characteristic of the tube. The magnetic shunts in the core allow of appreciable variation in primary voltage without substantially affecting the secondary voltage applied to the tube. In a further embodiment, Figs. 3 and 4 (not shown), a pair of secondary windings is associated with a single primary winding, the centre core of which is provided with two sets of outwardly-extending portions co-operating with oppositelyextending portions of the top and bottom legs of the outer frame, to form high reluctance shunts between windings. Each secondary winding supplies a separate discharge tube and each is connected in autotransformer relationship with the single primary. In both the above arrangements, the transformer may comprise separate primary and secondary windings or the secondary winding or windings may be connected in autotransformer relation to the primary winding. Substantially, unity P.F. may be achieved by correlating the capacity reactances of the condenser and tube so that their sum will be equal to the effective inductive reactance of the secondary winding with optimum current in the secondary circuit.