baber/WOPTO huggingface dataset:
Patent GB-589472-A (GB)
Title: Engine starter drive
IPC: F02N15/02
Filed: 1945-03-23
Abstract: 589,472. Turning-gear. BENDIX AVIATION CORPORATION. March 23, 1945. No. 7439.. Convention date, March 23, 1944. [Class 7 (v)] An engine starter drive, particularly for heavy duty, has a pinion 6 co-acting with an engine gear 7 and mounted on a threaded member 4 driven from the power shaft 1, the meshing position of the pinion being defined by a stop nut 9, the pinion and stop nut both having co-operating projections with engaging surfaces 26, 27 inclined to the plane of rotation, the non- pressure sides of the projections being relieved to provide clearance spaces 29 so as to prevent wedging of the anti-drift spring 23. The power shaft drives a friction clutch member 11 co-acting with a driven clutch member 12 splined to the shaft 4. A spring 22 may yield to facilitate meshing if a pinion tooth engages a tooth of the engine gear. The relieved projections on the stop nut, Fig. 2, may be produced in succession by a formed milling-cutter fed along the line AA. In operation, acceleration of the power shaft moves the pinion axially against the stop nut and further rotation drives the engine gear, the initial shock being cushioned by the clutch 11, 12. When the engine starts the pinion is returned to idle position, the inclination of surfaces 26, 27 being such that sticking of the pinion is prevented.
Patent GB-411617-A (GB)
Title: Improvements relating to holders for reels of string
IPC: A47F13/04
Filed: 1933-03-11
Abstract: 411,617. Holders for reels of string. MYERS & SON, Ltd., M., MYERS, L., and JACOBS, E., 94, Charlotte Street, Birmingham. March 11, 1933, No. 7476. [Class 18.] In a holder for a reel of string of the kind comprising arms b, c, mounted on a base and provided with fixed or rotatable flanges k and spindles d which enter the central aperture in the reel, the arm b, or both arms, is slidable on the base and is acted on by a spring h so that the flanges press on the ends of the reel and frictionally oppose its rotation. The arm b is provided with lugs f which slide on a rod g, the spring h being positioned on the rod between a fixed lug and one of the lugs f. The string is led off under a loop n on the metal base. An ordinary cutter o is provided on the arm c.
Patent GB-744619-A (GB)
Title: Improvements in radio receivers for cooperation with certain radio beacons to provide an indication of distance
IPC: G01S1/02
Filed: 1953-03-18
Abstract: 744,619. Radio navigation. SVENSKA AKTIEBOLAGET GASACCUMULATOR. March 18, 1953 [March 18, 1952], No. 7483/53. Class 40 (7). The invention comprises a receiver for a spiral phase field radio beacon the direction of rotation of the spiral phase of which is alternated between one hand and the other at a high rate. The receiver which may indicate both the range and bearing of the beacon has a rotating frame aerial and an omnidirectional aerial the outputs of both of which are amplified and fed after detection one to each of the field and moving coils of a moving coil instrument to give a range dependent indication. It is shown that for minimum reception the frame aerial will make an angle # with the perpendicular to the line joining the beacon and receiver where R being the range, # the wavelength and n half the number of poles in the beacon aerial system as explained in greater detail in Specification 694,721. If the frame aerial is rotated, then for one of the spiral phase fields the energy received as it rotates will vary as indicated by curve 15, and with a spiral phase field of the other hand there will be a displacement by 2# to the curve 16. Rapid alternation at the beacon between the two spiral fields therefore gives an output as shown by the continuous line of Fig. 2. The modulation waveform (Fig. 3) which can be extracted from the frame aerial output has a maximum at the aerial position corresponding to the minimum received signal intensity and in general its amplitude is 2A Cos (F.t) sin # where F is the angular velocity of the aerial, t time from a reference and A is a factor dependant on the aerial system constants and the incident signal strength. The factor cos (F.t) due to the rotation of the aerial is only a phasing factor and is not significant, taking the maximum of the signal, the amplitude is The value of A is determined from the signal amplitude received by the open aerial and when this is compared in the moving-coil instrument with the modulation waveform amplitude an indication is obtained which varies with R in accordance with the equation above. The instrument can be calibrated directly in range. The receiver may include a meter indicating the bearing of the transmitter from the receiver. For this purpose there is provided on the aerial rotation shaft a generator providing reference signals which are compared in phase with the output from the frame aerial in a cos-meter type bearing indicator. A block diagram (Fig. 5, not shown) of a receiver embodiment is given.
Patent GB-1023982-A (GB)
Title: Chromatography column structure
IPC: G01N30/30
Filed: 1963-02-25
Abstract: A chromatographic column comprises a column wound to form a double spiral so that substantially the whole of the column lies in a common plane where it is held in thermal contact with a heater having a plane surface.  The spiral may be held between two sheets of aluminium but may be spaced away from the heater by insulators, the insulators having channels to provide for a flow of cooling fluid. In one embodiment, air may be blown across the column to cool it. The heater may be an aluminium plate having therein a heating element together with a temperature sensing wire, the heater may be hinged so that it may be removed from the proximity of the column whilst the temperature sensing wire may be included in a bridge circuit for automatically programming the temperature of the column and giving accurate and linear temperature control.  A second column may be provided after the spiral column and this second column may be positioned below the heater used for the first.
Patent GB-737203-A (GB)
Title: Drum mill
IPC: B02C17/18
Filed: 1953-03-18
Abstract: 737,203. Drum mills. LUCKOW, H. March 18, 1953 [March 25, 1952], No. 7510/53. Class 59. A drum mill having charging apparatus for supplying the stock to be ground and means, including a separate classifying air nozzle arranged adjacent to the charging apparatus, for producing a current of air in the drum to distribute and classify the stock therein. The charging device may be mechanically or pneumatically operated. As shown in Fig. 1 a separate classifying air nozzle 6 is provided adjacent a charging device 3, 4 and a shoot 5 which supply stock 8 to the mill. The nozzle is of rectangular cross-section and somewhat wider than the shoot. The charging device, shoot and nozzle are mounted in a casing 2 which is connected to the mill drum. Means are provided for varying (a) the vertical distance between the charging device and the nozzle, (b) the inclination of the shoot, (c) the amount of air delivered by the nozzle, and (d) the height of the nozzle exit cross-section which is achieved by interchanging nozzles of different shapes. The charging device may comprise a vibrating trough with adjustable delivery. The assembly shown in Fig. 1 can be inserted in the inlet opening 9 of the mill shown in Fig. 4, sifting air being supplied at 15 to an annular scroll casing 14 surrounding the inlet opening 9. The scroll casing is connected to a baffle arrangement 11 which is connected to the end of the drum, the baffles 13 being inclined so that the sifting air is compelled to flow helically in an expanded condition through the mill. In a modification of this form, Figs. 6 and 7 (not shown), the axial width of the scroll casing is uniform but its radial dimension decreases to zero in the direction of the sifting air current. In a further modification, Fig. 9, a scroll casing 23 for sifting air is connected to the drum 18 through the intermediary of a tapered section 19 which rotates with the drum and is provided with inclined baffles 26 so as to impart a twisting flow to the sifting air, the rotary movement of the air stream being in a direction opposite to the direction of rotation of the drum.
Patent GB-126446-A (GB)
Title: Improvements in or relating to Steam Turbines.
IPC: F01D25/28
Filed: 1918-05-06
Abstract: 126,446. Baumann, K., and British Westinghouse Electric & Manufacturing Co. May 6, 1918. Dynamos, cooling and ventilating.-To reduce the overall length of an installation comprising a steam turbine, which is partly or wholly supported by feet 13 on the ends of the exhaust casing 10, as described for example in Specification 110,791, [Class 110 (iii), Turbines &c.], and an alternating-current generator with forced ventilation, some or all of the supporting feet 13 are used as air ducts to supply ventilating air to the driven machine. These ducts are formed between ribs 16, 17, 18, Figs. 1 and 3, in the feet 13, and supply air to the trunk 21 and fan 20 of the generator, which has its end bell 19 arranged as closely as possible to the turbine. A portion of the lower part of the end bell may be formed integral with the feet 13. In a modification, Figs. 8 and 9, the ventilating-air is drawn through a trunk 26 located between the foundations 15 and the shell 27 of the condenser, and passed between the supporting ribs 16, 17, 18, across the rear wall of the exhaust casing 10 to the trunk 21, which may have an internal guide-wall 30, the rib 17 being curved at its upper end 31 to act also as a guide.
Patent GB-512646-A (GB)
Title: Improvements in and relating to devices for separating oil from water contaminated therewith
IPC: B01D17/02
Filed: 1938-03-11
Abstract: 512,646. Gravity-separation apparatus. GREEN, E W., and UNTHANK, G. R. March 11, 1938, No. 7645. Addition to. 474,940. [Class 46] In apparatus for separating oil from water comprising a chamber a with a perforated cone h for distributing the mixed liquids, a trunk g providing an outer primary separation compartment and an inner secondary separation compartment, and an inner trunk g<1> into which a pipe d for the discharge of water extends, all as described in the parent Specification, arrangements are made by which the primary and secondary separation compartments are in communication at the upper end of the trunk g, so that a uniform water level is maintained in the two compartments. Apertures may be provided in the upper part of the trunk g or, as shown, the upper part of the trunk may be guidably supported by projections d<1> on the pipe d and an annular passage is left through which oil on the surface of the water in the inner compartment can pass to the oil discharge pipe e. As shown, the trunk g is carried at the lower end on supports provided on the bottom of the chamber.
Patent GB-1342549-A (GB)
Title: Mixtures of dyestuffs with neutral behavior under artificial  light for the single bath dyeing of mixtures of polyester fibres  and wool
IPC: C09B1/515
Filed: 1972-02-18
Abstract: 1342549 Dyestuff mixtures FARBWERK HOECHST AG 18 Feb 1972 [22 Feb 1971] 7675/72 Heading C4P [Also in Division D1] Dyestuff mixtures comprise at least one dispersion dyestuff of the general formula wherein R 1  is OH or hydroxymethylamino, R 2  is OH, amino or hydroxymethylamino, R 1  and R 2  always being different, and R 3  is H or a phenol or anisol group linked to the anthraquinone structure via a ring carbon atom and an acid dyestuff of the general formula wherein X and X# respectively are water solubilizing groups or an anion thereof e.g. SO 3 H or SO 3 # and Z is methyl or ethyl. They are used for dyeing wool/polyester mixtures.
Patent GB-577396-A (GB)
Title: Process of recovering alkaloids
IPC: C07D473/10
Filed: 1944-04-25
Abstract: Theobromine is recovered from its aqueous solutions by adsorbing it on clay from an aqueous solution having a pH not substantially greater than 8.5.  Caffeine, if present, is also adsorbed on the clay at the same time.  The theobromine may be removed from the clay by desorbing it with an aqueous solution having a pH not substantially less than 10.5.  If caffeine is present, the alkaloids may be separated by preferentially desorbing one of them and then the other, the theobromine being desorbed as above and the caffeine being desorbed by a non-chlorinated organic solvent of relatively high dipole moment or with a mixture of such solvents or of such a solvent with other organic or inorganic solvents.  Examples are given which illustrate (a) the effectiveness with which theobromine is adsorbed on clay from solutions, the pH values of which are less than 8.5; (b) the effect of pH variation on such adsorption; (c) the effectiveness with which both caffeine and theobromine can be adsorbed on clay; (d) the desorption of theobromine from clay by trisodium phosphate and sodium hydroxide solutions of varying pH values; (e) the ineffectiveness of caffeine desorption by these solutions; (f) the desorption of caffeine from clay by various solvents and solvent mixtures; (g) the ineffectiveness of theobromine desorption by these solvents; and (h) the effectiveness with which theobromine and caffeine can be adsorbed on clay from their aqueous solutions and then separated and recovered independently by preferential desorption.  In the above examples, various grades of fuller's earth are specified for use as adsorbent.  Solvents specified for desorbing caffeine are methyl and ethyl alcohols, acetone, methyl acetate, pyridine, aniline, piperidine, ethanolamine, diethanolamine and mixtures of methyl alcohol and acetone, methyl acetone, trichlorethylene dichlormethane or chloroform and of methyl alcohol, acetone and methyl acetate, dichlormethane, chloroform or water.  The application of the invention to cocoa waste extracts or to the mother liquor remaining after crystallisation of part of the theobromine from such extracts, is described with reference to an accompanying flow sheet.  The process is applicable where the theobromine in the cocoa waste extract is in the form of a metal salt, e.g. where the extraction has been carried out in presence of lime or other alkali, the theobromine being adsorbed as free alkaloid.
Patent GB-233493-A (GB)
Title: Improvements in paper-making machines
IPC: D21F5/02
Filed: 1924-03-26
Abstract: 233,493. Nuttall, T. D. March 26, 1924. Drying.-In drying paper, a. small number of drying cylinders A. B of larger size than normal are used, and heated or drying air is passed over t'he paper on the drying cylinders by means of hoods C, C' provided with a number of distributing passages d and with outlets E, E<1> for the moisten-laden air. Additional distributing passages d<1> may be provided beyond the outlet to prevent the escape of moisture-laden air to the space between the drying cylinders.
Patent GB-903810-A (GB)
Title: New ª-,ª--di-benzoxazol-2-yl-ethylenes
IPC: C08K5/35
Filed: 1961-03-02
Abstract: The invention comprises a ,b -di-[benzoxazolyl-(2)]-ethylene compounds of formula <FORM:0903810/IV (b)/1> in which R represents a phenyl or cyclohexyl radical.  They may be made, for example, by condensing 3-amino-4-hydroxy-1,11-diphenyl or 1-hydroxy-2-amino-4-cyclohexyl-benzene at elevated temperature in the molecular proportion of 2:1 with fumaric acid, aspartic acid or malic acid, or a functional derivative thereof, cyclising the intermediate compound by heating with boric acid, and when malic or aspartic acid is used heating the product to eliminate water or ammonia respectively.  It is desirable to carry out the reaction in an organic solvent, such as xylene, at the boilingpoint.ALSO:Compounds of formula <FORM:0903810/IV (b)/1> in which R represents a phenyl or cyclohexyl radical, are used for brightening films and synthetic fibres of, for example, acetate rayon, polyacrylonitrile, polyamide or polyvinyl chloride.  They are particularly valuable for brightening polyester fibres such as those of terephthalic acid polyglycol esters to which the compounds are advantageously added in the form of a fine aqueous dispersion.  Such dispersions may be made in known manner with the use of known dispersants, e.g. polyglycol ethers of higher alcohols or ortho-alkyl phenols, and diluted with water in any desired proportion.  An example is given of the treatment of polyester fibres with a paste containing one of the above compounds water and an adduct obtained from ethylene oxide and a mixture of C18 saturated fatty alcohols in a bath containing 1 cc. of ammonia per litre.
Patent GB-609477-A (GB)
Title: An arrangement for fixing a quantity characteristic of a call for example the rate for a call in automatic telephone systems
IPC: H04M15/38
Filed: 1944-04-26
Abstract: 609,477. Automatic exchange metering systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. April 26, 1944, No. 7819. Convention date, April 27, 1943. [Class 40 (iv)] In a time/zone metering system, the appropriate'impulsing rate is selected under the control of a cross-bar switch common to a number of meter-controlling circuits in which the relevant digits are registered. As shown, relay HR pulls up when the outgoing junction circuit is seized and digit impulses are sent over wire J in turn to register Z1, Z2, Z3, the last mentioned acting also as digit distributer under control of relay ZR2 which remains operated during each digit. When ZR2 falls for the third time it makes a circuit for ZR3 via a discharge lamp GL and a resistance r associated with a common cross-bar switch. If the latter is idle, ZR3 is able to operate and locks up, associating the cross-bar switch with the junction circuit, whereby circuits are made via registers Z3, Z2 for a vertical and a horizontal magnet and a circuit is made via register Z1 and one only of the contacts of the operated spring set for marking one of the terminals in bank a2 of Z2. At the same time, circuits are made whereby Z2 hunts for the marking under control of ZR1 after which ZR3 is released to free the common cross-bar switch and Z1 homes by self-interruption. When the called party replies, SR pulls up and Z1 is stopped at an appropriate rate over the lead selected in bank b2 of Z2, operating the meter in positions 2 and 3 in each revolution. The impulsing leads may be selected by separate relays instead of by a hunting operation of Z2. If the common equipment is held unduly, a thermal relay (not shown) releases ZR3.
Patent GB-446363-A (GB)
Title: Improvements in or relating to the steam superheating installations of steam generators
IPC: F22G5/20
Filed: 1935-03-13
Abstract: 446,363. Steam superheaters. SUPERHEATER CO., Ltd., and SOUTHCOTT, L. C., Bush House, Aldwych, London. March 13, 1935, No. 7824. Addition to 395,475. [Class 123 (iii)] In moderating the final superheai of the steam delivered by a high temperature unit by the method of the parent Specification some of the saturated steam generated in a low temperature unit which includes a superheater is supplied to the superheater of the high temperature unit and the remainder to that of the low temperature unit. Owing to this reduction in the quantity of steam the superheat temperature of the low temperature unit is increased. An installation made up of three low temperature units comprising boilers 1, 2, 3 and superheaters 11, 21, 31, and three high temperature units comprising boilers 4, 5, 6, and two-pass superheaters 41, 42; 51, 52, and 61, 62, has a superheated steam range 7 into which all the superheaters deliver at the same pressure and a saturated steam range 8 supplied from boilers 1, 2, 3, and connected by pipes 84, 85, 86, with the intermediate headers 14, 15, 16, of the two-pass superheaters. The superheaters of boilers 4, 5, 6, are large enough to provide at least the required final temperature at all times whilst those of boilers 1, 2, 3, provide a lower degree of superheat. On a rise of temperature of steam from a high temperature superheater, connection between one or more of boilers 1, 2, 3, and range 8 can be opened and saturated steam delivered by pipe 84, 85, or 86 to the intermediate header where a lower pressure prevails. Operation may be by manual valves 9, 10 or thermostatic valves responsive to the respective final steam temperatures may control the operation automatically, the valves being open at normal loads on the boilers. Subject to the limitation that delivery of saturated steam from a boiler should cease upon the outlet steam temperature from the corresponding superheater reaching a predetermined value, the valve settings are such as to provide sufficient saturated steam to rectify a rise in a high temperature superheater.
Patent GB-912892-A (GB)
Title: Improvements relating to magnetic separators
IPC: B03C1/14
Filed: 1961-03-03
Abstract: 912,892. Magnetic separators. GLEASON WORKS. March 3, 1961 [June 22, 1960], No. 7857/61. Class 117. Swarf is removed from a machine tool cooling liquid by feeding the liquid into a housing 17 to flow along a semi-circular passage 37 defined by an apron 36 in the housing and the periphery of a rotary magnet-containing drum 24 whereby the swarf is attracted to the drum surface and removed therefrom by a tangentially disposed non-magnetic scraper 44 which passes the swarf to the underside of a second rotary magnet-containing drum 49 whilst allowing any liquid scraped from drum 24 to drain back into the passage 37, the drum 49 being disposed above the level of the liquid at the outlet end of the passage 37 and the swarf being finally removed therefrom by a scraper 19 to fall on to a conveyer (not shown). As shown the drum is carried by a motor-driven shaft 26 and comprises a non-magnetic stainless steel shell 31 screwed between aluminium end plates 28, 29, the shell 31 carrying circumferentially spaced pairs of ceramic poles 32 of opposite polarity which are bridged by keeper bars 33. The scraper 44 is combined with a baffle 45 which directs any liquid back towards the drum shell 31 to drain into the passage 37. The second drum 49 is smaller than drum 24, containing only two opposed pairs of poles 57, but is driven at ten times the speed of drum 24. In an alternative arrangement, the scraper 44 is replaced by an endless belt which extends around the drum 24 and a roller which is carried by a spring-loaded bracket pivotally mounted on the axis of the second drum 49, the belt serving to convey the swarf to the second drum. In this arrangement the drum 24 may be driven by the belt from the roller which is itself positively driven by a motor.
Patent GB-313549-A (GB)
Title: Improvements in or relating to fluid flow meters and the manufacture thereof
IPC: G01F15/00
Filed: 1928-03-14
Abstract: 313,549. Kent, W. G. March 14, 1928. Impulse meters; materials, special. -A chamber 17, Fig. 6, for a fluid-flow meter is made of a non- corrodible metal such as that sold under the Registered Trade Mark " Monel " and is produced by blanking out a disc of the metal and cupping it to the required form. The chamber is formed with a peripheral flange round its open end, the flange being either integral with chamber or secured thereto by screws &c.