baber/WOPTO huggingface dataset:
Patent GB-720027-A (GB)
Title: Shuttle propelling mechanism for weaving looms
IPC: D03D49/44
Filed: 1952-02-06
Abstract: 720,027. Looms. COMPTOIR LINIER, and LATIEULE, Y. Feb. 6, 1952 [Nov. 10, 1951], No. 3188/52. Class 142 (2). Mechanism for picking a cylindrical shuttle M of magnetic material comprises an electromagnet A and two sets of rollers B formed of magnetic material and rotated by non-magnetic shafts C ; the unit thus formed is mounted in a non-magnetic frame D which can be moved along the shuttle path by a mechanically displaceable arm or the like. In one embodiment two rollers B are provided on one shaft C, the other shaft carrying a single centrally mounted roller ; in this case an electromagnet having three poles is provided. Specifications 715,494 and 720,028 are referred to.
Patent GB-837163-A (GB)
Title: Improvements in and relating to urea compositions
Inventor: CURRY PETER EDWARD
IPC: C05C9/00
Filed: 1958-01-31
Abstract: The invention comprises free-flowing and substantially non-caking urea compositions comprising an intimate mixture of substantially crystalline, granular or pelleted urea with from 1/2 % to 3% by weight of activated calcium carbonate, which is defined as precipitated calcium carbonate in finely divided form containing small proportions of stearic acid or other activating agent.  The urea preferably contains less than 1% moisture when mixed with the calcium carbonate, such as the synthetic dried product obtained from ammonia and carbon dioxide; the calcium carbonate may be added in the later stages of drying.ALSO:Free-flowing and substantially non-caking urea compositions, suitable for use as fertilizers, comprise an intimate mixture of substantially crystalline, granular or pelleted urea with from 1/2 % to 3% by weight of activated calcium carbonate, which is defined as precipitated calcium carbonate in finely divided form containing small proportions of stearic acid or other activating agent.
Patent GB-582754-A (GB)
Title: Rotary machine for washing bottles, flasks, cans and other containers
IPC: B08B9/36
Filed: 1942-03-12
Abstract: 582,754. Bottle - washing machines. DETREZ, R. March 12, 1942, No. 3279. Convention date, Aug. 11, 1939. [Class 138 (i)] In a bottle-washing machine of the kind in which the bottles are inverted and carried by an intermittently rotated member to positions where cleansing is effected by sprays of liquid and by internal brushing, the rows of bottles B are placed on cups 6 carried by a member 5 supported on a fixed column 3, and the member 5 is rotated intermittently by means of an indexing cam 8 located beneath the plate and engaging lugs 7 on the member 5. Water, or a cleansing basic or acidic solution, is pumped from compartments 13 which supply a series of headers 113 with nozzles 11 for directing the jets inside the bottles, and supply pipes 12 with nozzles for spraying the bottles externally. After spraying, the bottles may be scoured internally by brushes 60 on stems 23 which are raised inside the bottles by means of a cam 17 on a cam-shaft 15 and a pair of levers 18, 21 which are connected by an adjustable connection operable by a nut 56 which permits of adjustment for bottles of different sizes. The brushes are mounted in a reciprocating header 22, Figs. 1 and 4, in which are also mounted tubes 24 which move into the bottles and inject water into them prior to the brushes being moved into the bottles. If a bottle still contains a cork, the engagement of a tube 24 with the cork or stopper actuates a switch which causes stoppage of the machine. Also as the header 22 descends, the machine is stopped by a switch if one of the stems 23 of the brushes is held by a stopper which has got into a bottle. The bottles are centred in the header 22 by means of reciprocating members 33 which are adjustable for bottles of different sizes and which engage the bottoms of the bottles which are held by means of springs 34 which press members 32 engaging the bottle necks. Means for heating and filtering the cleansing liquids are provided, and means for drying the hollow bottoms may also be used.
Patent GB-640251-A (GB)
Title: Improvements in coupled resonator systems suitable for use in electron space discharge devices
IPC: H01J25/587
Filed: 1947-02-04
Abstract: 640,251. Magnetrons. WESTERN ELECTRIC CO., Inc. Feb. 4, 1947, No. 3289. Convention date, April 5, 1944. [Class 39 (i)] In a magnetron having a plurality of cavity resonators surrounding and opening into a cylindrical cathode space, an annular groove is cut at one end of the anode segments to receive one or more straps 83, 84, Fig. 4, and the cathode space is shielded from the electromagnetic field associated with the strap or straps by the rising ends 79, 80, 81, 82 of the anode segments. Preferably there are two straps 83, 84 which contact alternate and intermediate anode segments by means of integral feet 85, 86 fitting into additional grooves 87, 88 on the floor of the main groove. Th may be duplicated at the other end of the anode structure. The straps ma rings, or may each have a single 7 (not shown), and are brazed or soldered to the anode segments. The anode 39, Fig. 2, is supported inside a casing 20 and extends therethrough, the heater leads being connected to rigid supports 43, 44, connected in turn to flexible leads 53, 54, Fig. 3, leading to terminals 24, 25. Polepieces 22, Fig. 2, are provided. The tubulation 51 is sealed to the tapered flaring edge 56 of a conductive bushing 57 attached to the casing 20. The outer tubulations 52 protects the cathode lead seal; the bore 55 has a hole, Fig. 1 (not shown), to permit ventilation around the seal. The tubulation 48, Fig. 2, is sealed to the tapered flaring edge of the conductive bushing 46 which forms the outer conductor of a coaxial output line whose inner conductor is 47, 61. A sheath is fitted over the flange 65 of the bushing 46 and opens into a wave-guide 27, Fig. 8, the free end 62 of the member 61 serving as antenna. The wall of the bushing 46 is tapered at 66 to provide a suitable impedance transformation. The wave-guide 27 has a coupling flange 67, Fig. 8. One of the cavity resonators may be tuned by a plunger 92, Fig. 9, fixed to a flexible diaphragm 93 and mounted on a threaded bolt 94 moved by a captive nut 95. The nut 95 has slots, Fig. 10 (not shown) for the reception of a screwdriver for tuning adjustment. Heatradiating fins are mounted on the casing 20, Fig. 1 (not shown).
Patent GB-734370-A (GB)
Title: Improvements in or relating to solid polymer compositions
IPC: C08K5/03
Filed: 1953-02-06
Abstract: A solid cellulose ether plastic composition comprises essentially ethyl cellulose and from 1 per cent to the compatible limit of benzene hexachloride.  The benzene hexachloride serves as an extender for the ethyl cellulose and increases the flame-retardant properties of films, moulded products and other articles made of ethyl cellulose.  The benzene hexachloride used is preferably a mixture of the alpha and beta isomers from which the insecticidally active gamma isomer has been removed and in which the alpha isomer predominates. It may be submitted to a solvent extraction or fractional crystallization treatment to remove odourous components.  The ethyl cellulose may have an ethoxyl content of 44-49 per cent.  In an example, 90 parts by weight of ethyl cellulose containing 45 per cent ethoxyl are mixed with 10 parts of finely divided benzene hexachloride, and the mixture is placed between regenerated cellulose sheets and pressed between platens which are heated to 350 DEG  F. The composition is held at a pressure of 3500 p.s.i. for 15 seconds. A clear, tough film is obtained.  In another example, ethyl cellulose is mixed with benzene hexachloride and fluxed on hot rolls.  The sheet which is formed is milled, stripped, cooled and ground to form a moulding powder.  In another example ethyl cellulose is dissolved with benzene hexachloride in a mixture of toluene and ethanol. The solution is cast on to a glass surface to form a film which is dried in air and subsequently in a vacuum oven at 55-60 DEG  C., and is finally stripped.
Patent GB-705455-A (GB)
Title: Improvements in or relating to methods of refining fatty oils
IPC: C11B3/06
Filed: 1952-02-08
Abstract: <PICT:0705455/III/1> In the neutralizing and decolorizing of fatty oils in a continuous process using a mixture of alkali hydroxide and alkali carbonate, 30 to 150 parts by weight of water-free alkali carbonate are used to 100 parts by weight of water-free alkali hydroxide.  Soda lye and soda are preferred, and the alkaline solution used is suitably one in which the soda in the above proportions is dissolved in a lye having a concentration of 10-30 DEG B<\>ae.  A sufficient quantity is added to the oil to reduce the free fatty acid content generally to or below 0.08 per cent.  The free fatty acids are neutralized by the lye and the soap formed dissolves in the soda solution, thus avoiding saponification of neutral oil and emulsified oil in the soap.  The solution of hydroxide and carbonate is preferably mixed in the form of fine drops with the oil, and the soap formed is immediately separated by centrifuging. Also, before the mixing, the oil is preferably heated to a temperature high enough to ensure that no appreciable emulsification takes place when the alkali solution is mixed therewith.  A suitable plant comprises an oil tank 1, a tank 2 containing a mixture of the lye and soda, pumps 3 and 4 to pass regulated quantities of the oil and lye through a mixer 5, and a centrifuge 6.  The mixer is preferably in the form of a disc working at high speed in a housing to divide the neutralizing agent finely in the oil.  Specification 538,155 is referred to.
Patent GB-383121-A (GB)
Title: Improvements in and relating to carving and like forks
IPC: A47G21/02
Filed: 1932-02-05
Abstract: 383,121. Handle fixings. GARNER, P., 144, Church Street, Eccles, Manchester. Feb. 5, 1932, No. 3442. [Class 61 (i).] A carving or like fork 5, 6 for holding the end of a loaf of bread, or a piece of meat whilst slicing it, has a detachable handle 7 screwed at will to either the top, as shown, or back of its upper face 4, the handle projecting behind the fork in the latter position.
Patent GB-647523-A (GB)
Title: Improvements in electric wave filters and separators
IPC: H03H7/01
Filed: 1946-02-04
Abstract: 647,523. Impedance networks. COMPAG-  NIE   GENERALE   D'ELECTRICITE . Feb. 4, 1946, No. 3533. Convention date, March 31, 1944. Drawings to Specification. [Class 40 (viii)] A filter or separator is designed according to Cauer's methods on the basis of a characteristic function which is an even function of the frequency and is determined by means of a homographic transformation, requirements at very high and very low frequencies being ignored. The desired set of cut-off frequencies fx<SP>1</SP>, fx, fk, fk<SP>1</SP> is transformed to a set 0, x, 1/x, #, in such a. way that the anharmonic ratio of the squares of the first set is equal to that of 0, x<SP>2</SP>, 1/x<SP>2</SP>, #. The frequency variable f is transformed by the same homographic transformation into a normalized frequency #, and a characteristic function #, of the argument # is then calculated by Cauer's method to give the optimum attenuation characteristic. This function consists, apart from a constant, of the product of a number of terms of the form (Pi<SP>2</SP> - #<SP>2</SP>)/(1- Si<SP>2</SP>#<SP>2</SP>), where i has, in successive terms, all integral values from 1 to a value Á corresponding to the Cauer class which has been selected in accordance with the degree of approximation required, and the parameters Pi, Si are determined by Cauer's method. The inverse transformation is then performed, the function # reverting into # which is, apart from a constant, the product of a number of terms of the form (xi<SP>2</SP> - f<SP>2</SP>)/(1 - yi<SP>2</SP>f<SP>2</SP>), where f is the actual frequency variable and the values of the formation. The design of the filter can then be deduced from the frequency function #.
Patent GB-563543-A (GB)
Title: Improvements relating to means for hitching or coupling agricultural implements to tractors
IPC: A01B59/042
Filed: 1943-03-04
Abstract: 563,543. Couplings for agricultural implements. BOMFORD, D. R. March 4, 1943, No. 3550. [Class 103 (v)] Means for the hitching to tractors of agricultural implements (ploughs, machines for transplanting and for sowing seeds, &c.) not only provides for the usual swivelling about vertical and horizontal pivots but also for a partial turning or rocking motion in a transverse plane. Abutting vertical plates 4, 5, attached to a tractor by a horizontal plate 4b and to the implement by a plate 5a connected to plate 5 by a hinge 6, are adjustably connected to each other by bolts 7 passing through curved slots 4d in the plate 5 and being fixed as required by nuts 8 so that plate 5 can be fixed in a tilted position as shown in one of the dotted line elevations of Fig. 3.
Patent GB-431006-A (GB)
Title: Improvements in or appertaining to tuning arrangements for superheterodyne radio receivers
IPC: H03G3/26
Filed: 1934-02-03
Abstract: 431,006. Valve circuits for wireless reception. COLE, Ltd., E. K., Priory Crescent, Southend-on-Sea, MARTIN, A. W., 1, Thames Close, Leigh-on-Sea, and HUNT, H., 87, Inverness Avenue, Westcliff-on-Sea. Feb. 3, 1934, No. 3588. [Class 40 (v)] In a supersonic heterodyne receiver a detuned oscillator is used to produce a control wave which prevents re-production of the signal when the receiver is out of tune by a pre-determined amount. The Figure shows an intermediate frequency amplifier 2 and oscillator 4 tuned to the intermediate frequency so that when the receiver is detuned low frequency beats in the output are produced and rectified by a rectifier 12 to render the grid of the amplifier 5 positive. The amplifier 5 is in consequence of low impedance and its cathode and that of the diode detector 3 are positive with respect to the anode of the detector 3 which is thus inoperative. When in tune the anode current of the amplifier 5 is reduced and the detector 3 becomes operative. With a weak signal such that beat frequencies are not produced the cathode of the valve 2 is sufficiently positive for the diode 17 to be conductive which renders the grid of the amplifier 5 positive and thus the detector 3 inoperative. With a strong signal the diode 15 applies a negative bias to the valve 2 as described in Specification 430,415 and reduces the cathode potential so that the diode 17 is rendered inoperative and the grid of the amplifier 5 is controlled by the beat frequency produced by the intermediate frequency and the oscillator 4 and rectified by rectifier 12.
Patent GB-1166182-A (GB)
Title: Moulding Apparatus
Inventor: HANUS JEAN
IPC: B29D30/06
Filed: 1967-01-25
Abstract: 1,166,182. Moulding plastics materials. DUNLOP CO. Ltd. 25 Jan., 1967 [15 Feb., 1966], No. 3642/67. Heading B5A. An elastomeric article is produced in a mould having at least one elongated projection for moulding a depression in the article, the projection having at least one vent passage extending therethrough adjacent its base, a part of the passage having a transverse cross-sectional area smaller than the transverse cross-sectional area of the remainder thereof. A pneumatic tyre mould 11, 12 has projections 15 for moulding tyre grooves, and the vent passage 16 of each projection is circular in transverse cross-section and tapers from one end to the other. Alternatively each passage is cylindrical with a convergent end, or it may diverge towards its ends from a mid-point thereof.
Patent GB-798807-A (GB)
Title: Improved method and apparatus for the treatment of sheet material
Inventor: DAVEY EDWARD LESLIE
IPC: D06M13/144
Filed: 1956-02-06
Abstract: 798,807. Coating and impregnating webs. BRITISH INSULATED CALLENDERS (SUBMARINE CABLES), Ltd. Feb. 5, 1957 [Feb. 6, 1956], No. 3651/56. Class 140. Sheet material is coated and/or impregnated as a continuous operation by drawing two or more sheets at the same time from separate supply rolls, winding them up into roll form separately, and between the unwinding and winding stages, whilst they are travelling at substantially the same linear speeds, heating them, subjecting them to low pressure, and drawing them through the treating liquid maintained at a higher pressure, the sheets being so guided that during their heating and low pressure treatment and at least the initial part of their travel through the treating liquid, they are in contact with one another. The sheet materials may be of paper or textile and they may be treated with oils, insulating compounds, varnish and rubber solution. The treated materials may be used as dielectric materials in an electric cable. As shown, sheets 7 and 8 pass from rolls 5 and 6 around guide rolls to roll 15 where they are united, around roll 15 back to roll 16 and from the bottom of roll 16 to a slot in vacuum tank 17. The rolls 15 and 16 may be heated electrically through slip rings 25 on their spindles. The slot into the vacuum tank is packed by a rubber bar 29 carried by an adjustable metal bar 31 and lying adjacent a steel bar 33. Within the vacuum tank the sheets travel over guides 40, 41 and 42 which may be heated and/or the tank may be heated), through a packed slot and into the impregnating tank 50 which is filled with liquid to a point above the guide rolls 47 and 49. At roll 49 the sheets are separated and pass through slots to a lagged tank 55 where both sides of each web are wiped by bars 44 mounted on angularly adjustable spindles 53. Sheet 7 then passes over guide rolls to roll 69 which dips in a trough and may apply a surface coating to the web. Sheet 8 passes over a similar roll 73 and the webs are reunited and pass round rolls 76, 77 and 78 from whence they are separately wound on rolls 80 and 81 repsectively. A barrier 120 in vacuum tank 17 separates the tank into two compartments from one of which any impregnant escaping from the tank 50 may be pumped back to tank 50. The rolls 76, 77, 78 80 and 81 are connected through reduction gearing mechanisms and clutch systems such that their speeds are substantially synchronized and so that the increase in diameter of rolls 80 and 81 may be compensated for.
Patent GB-582512-A (GB)
Title: Improvements in or relating to hydraulic braking systems
IPC: F16D65/22
Filed: 1944-02-28
Abstract: 582,512. Brakes. BENDIX AVIATION CORPORATION. Feb. 28, 1944, No. 3686. Convention date, March 22, 1943. [Class 103 (i)] In an internally expanding brake, the brake cylinder is protected, from the heat of the braking, by arranging it wholly or partly outside the back plate with its axis normal to the plane of the said plate, two pistons, one for each shoe, being reciprocable within the cylinder. As shown, the brake shoes 13, 14 are spread by bell cranks 21, 22, the former engaging with the cylindrical piston 19 and the latter with the annular piston 20. The end of the lever 22 is forked to engage the bottom of the piston 20. Adjustment of the shoes, which are pivoted at adjacent ends to the backing plate 12, is effected by screwed stop members 31, 32, and the levers are kept in contact with the stops 29, 30 by springs 26, 27 which are weaker than the retracting spring tensioned between the shoes. An annular packing 25 is provided. In a modification, the shoes are of the full floating type being joined at the ends remote from the levers by an adjustable link, and being arranged to anchor against a projection, on the backing plate, positioned between the levers. In another modification, the levers 21, 22 are pivoted outside the backing plate 12, and screws, threaded in arms integral with the levers, abut on the plate 12 to permit adjustment of the brake shoes. Alternatively the adjusting screws are threaded in lugs on the cylinder 18 and bear on the levers 21, 22.
Patent GB-371965-A (GB)
Title: A method for measuring or testing the thickness of insulating coatings and linings
Filed: 1931-02-05
Abstract: 371,965. Linear dimension gauges. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. Feb. 5, 1931, No. 3693. Convention date, Feb. 5, 1930. [Class 106 (ii).] The thickness of an insulating covering M applied to a conductor base N, for example the chemically resistant lining applied to chemical apparatus of metal, is measured or tested by a capacity bridge having a variable condenser C<3> and a test contact E for engagement with the vessel under test. The test contact may comprise a spongy body with superposed thin sheets of aluminium, or a rubber bag filled with mercury may be employed, or a conducting liquid within the vessel may form one condenser coating. High frequency alternating currents may be employed for the test or measurement.
Patent GB-790054-A (GB)
Title: Improvements in or relating to thermal responsive valve
Inventor: WOOD CHARLES W
IPC: G05D23/02
Filed: 1955-02-08
Abstract: 790,054. Temperature-responsive actuating-elements. STANDARD - THOMSON CORPORATION. Feb. 8, 1955 [May 6, 1954; July 27, 1954], No. 3694/55. Class 64(2) [Also in Group XXIX] In fluid valve (see Group XXIX) a container 30 carrying a valve 26 is guided against a spring 28 in a bridge 19. Another bridge 15 carries a rod 17 which protrudes into an elastic sleeve within the container. When thermal material 40 between the sleeve and the container expands the sleeve is compressed so that the valve and container is pushed off the rod 17. With excessive temperature, the valve 26 is held open, e.g. by a spring 55, until it is reset. In another embodiment, Figs. 12-16 (not shown), a U-shaped spring is secured horizontally near the valve seat with its arms secured by solder until excessive heat melts the solder and the arms spring in to prevent the valve closing.
Patent GB-1490014-A (GB)
Title: Enriching air
IPC: B01D53/04
Filed: 1975-01-28
Abstract: 1490014 Enriched air GARRETT CORP 28 Jan 1975 [30 Jan 1974] 3705/75 Heading B1L The feed of air to the sorbent, e.g. for N 2 , in air enrichment apparatus, e.g. for aircraft, is controlled so as to vary inversely with the pressure in the enriched air storage tank, the feed being intermittently cut off for connection to a low pressure zone for purging, e.g. by the stored enriched air. The feed may be controlled by a pressure sensitive valve.