baber/WOPTO huggingface dataset:
Patent GB-569873-A (GB)
Title: Improvements in or relating to supersonic inspection devices
IPC: G01N29/07
Filed: 1943-07-13
Abstract: 569,873. Supersonic inspection devices. UNITED AIRCRAFT CORPORATION. July 13, 1943, No. 14925/44. Convention date, June 29, 1942. Divided out of 569,858, [Group XL] [Class 118 (ii)] A device for the inspection of a part includes means for producing a voltage train and means for sending vibration waves of a selected frequency into said part comprising a quartz plate adapted to have one principal surface placed in effective contact with said part, means for absorbing vibrations of said selected frequency in effective contact with the other principal surface of said quartz plate, means for applying said voltage train to said quartz plate to cause said plate to radiate vibration waves of said selected frequency, an amplifier actuated by said quartz plate and indicating means actuated by said amplifier. The invention is described in its application to detecting flaws in solid objects by radiating a, supersonic vibration into the object and comparing the time of reflection from a flaw with the time of reflection from a distant boundary of the object as shown generally in Fig. 1. The generator 1 produces voltage trains 32 of a frequency of about 5 megacycles, the voltage trains following each other at a frequency of 60 trains per second. The voltage is applied to the electrode of a mechanically damped quartz crystal 3 having the same frequency which is attached by a film of oil to one surface of the object 4 to be tested. Trains ofmechanical vibrations pass into the object and are reflected back from the opposite boundary and from any flaws in the object, and react on the crystal 3 to generate corresponding voltage waves. The primary voltage trains a, d, together with voltage trains b, c due to reflection from the opposite boundary, and voltage train f due to reflection from a flaw are all applied to an amplifier 5 and rectifier 7, the output of which is applied to the vertical deflecting plates of a cathode ray tube 8. The horizontal deflecting plates are fed from a timebase unit 9 synchronised with the pulse frequency of generator 1. Thus the trains a, b, c and f give corresponding traces a, b, c and f on the screen of the cathode ray tube which enable the existence and position of a flaw to be determined. Separate sending and receiving crystals may be used as described in U.S.A. Specification 2,280,226. The generator 1 is as described in Specification 560,898. [Group XL].
Patent GB-775866-A (GB)
Title: Improvements in resilient stops or buffers and other resilient devices
Inventor: GIBSON ARTHUR CHARLES
IPC: F16F1/40
Filed: 1954-05-21
Abstract: 775,866. Resilient buffers. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 19, 1955 [May 21, 1954], No. 15022/54. Class 108(3). A resilient buffer comprises a stack of resilient members 1 interleaved with non-resilient members 2, which include apertures or recesses on at least one surface in contact with an adjacent member of the resilient material. On compression, the resilient material is displaceable into the apertures or recesses thus absorbing energy. As shown, the resilient members 1 are of rubber, and the non-resilient members are of perforated sheet metal. The members 2 may alternatively be formed of expanded metal. The members 1, 2 are mounted on bolts 5 between a base member 4 and a pressure plate 3 which is adapted to be engaged by a movable member 8, the movement of which it is intended to buffer. The invention is applicable to the circuit-breaker mechanism described in Specification 775,867 [Group XXXVII].
Patent GB-129867-A (GB)
Title: Improvements in Vehicles.
Inventor: WILKIE GEORGE MACAULAY
IPC: B60B19/00
Filed: 1918-09-18
Abstract: 129,867. Wilkie, G. M. Sept. 18, 1918. Annular wheels.-The vehicle axle c is supported by one or more anti-friction slippers b having rubbing contact with the inner periphery a' of the rim a. The slipper is formed with a recess b<2> to which oil, steam, compressed air, or other pressure-fluid is supplied, such fluid escaping (as through valves b<2>) to form an antifriction film between the rubbing surfaces of the slipper and the rim. Additional supporting rollers d<4> and a driving-pinion d may be fitted as shown.
Patent GB-811611-A (GB)
Title: Circularly polarised microwave antenna having an axial radiation
IPC: H01Q21/24
Filed: 1957-05-14
Abstract: 811,611. Aerials. ALLEZARD, R. A. May 14, 1957 [May 14, 1956], No. 15227/57. Class 40(7). A radio aerial comprises four elements forming two mutually perpendicular dipoles and all conductively attached to the outer conductor of a feeder coaxial line. The outer conductor is provided with two diametrically opposite slots parallel to the axis of the feeder which form part of the arrangements for transferring energy between the elements and the feeder and a cylindrical conductive sleeve apertured for the elements is placed round the outer conductor to prevent direct radiation from the slots. The aerial is designed for use with circularly polarized energy and the radiation pattern has a maximum along the axis. Figs. 1 and 2 show sections in perpendicular planes of one embodiment in which 3, 4, 5 and 6 are the dipole elements which are welded to the outer conductor 1 of the feeder. The inner conductor 2 of the feeder is connected to the outer 2 by metallic end cap 7 and also at a point approximately a quarter of the working wavelength therefrom by rod 12. The slots 10, 11 are diametrically opposite each other and in a plane at right angles to the radial plane containing rod 12. The rod is in line with the mid-point of the slots and the latter are approximately half a wavelength long. Surrounding the slotted part of the conductor 1 is a sleeve 9 closed at the feed end by wall 8 and at the outer end by cap 7. Apertures 17, 18, 19 and 20 in the sleeve allow the elements to extend therethrough without contact. The slots are angularly mid-way between adjacent pairs of these apertures. Each radiating element may be backed by a reflector element 13, 14, 15 and 16 to reflect rearward radiation. The elements 3, 4, 5 and 6 are approximately a quarter of a wavelength long, the precise value being determined experimentally to obtain as nearly as possible circular polarization. Curves are given showing the radiation pattern in selected planes and an indication of the way in which the polarization differs from the truly circular. In a second embodiment (Fig. 7) the diametrically opposed slots (26 only shown) are cut in from the free end of the external conductor 2 and extend only a quarter of a wavelength. The end of conductor 2 is connected at the end of the line with the outer conductor 1 by a member 21 whose outer edge is attached to the inside of conductor 1 for nearly the whole distance between the two slots on one side thereof. The elements, of which only 3 and 4 are shown, are welded externally to the end of conductor 1 at 45 degrees to the slot positions and extend through apertures in a sleeve 23 attached to the feeder at 24 and closed beyond the end of the line by a cap 25.
Patent GB-969022-A (GB)
Title: Substituted ureas
Inventor: LOTT WILLIAM ADOLF
IPC: C07D213/82
Filed: 1961-04-27
Abstract: The invention comprises compounds of the formula: <FORM:0969022/C1/1> (wherein R is hydrogen, lower alkyl, lower alkenyl, monocyclic aryl or monocyclic aralkyl the aryl groups of which may be halogen, lower alkyl or lower alkoxy substituted; R1 and R11 are hydrogen, lower alkyl or monocyclic aryl, or together with the carbon atom to which they are joined are lower cycloalkyl, or CRR1R11 is phenyl or pyridyl which may be lower alkyl substituted; R111 and R1111 are hydrogen or lower alkyl; the word "lower" referring to groups containing at most 7 carbon atoms; and X is oxygen or sulphur) and salts thereof; and their preparation by reacting the appropriate acyl isocyanate or acyl isothiocyanate with hydroxylamine or the appropriate oxyamine or salt thereof in an organic solvent. Examples are given, and the preparation of salts with alkali and alkaline earth metals, ammonia and pyridine is described.  Acyl isocyanate and isothiocyanate starting materials are prepared from acid chlorides and metal cyanates or thiocyanates, the acid chlorides being prepared from the appropriate carboxylic acids and thionyl chloride.  2-Ethyl -2- (p-chlorphenyl) butyric acid is prepared by reacting p-chlorphenylacetonitrile with ethyl iodide to give 2-ethyl-2-(p-chlorphenyl) butyryl nitrile and then hydrolysing this.ALSO:Compounds of the formula <FORM:0969022/A5-A6/1> (wherein R is hydrogen, lower alkyl, lower alkenyl monocyclic aryl or monocyclic aralkyl, the aryl groups of which may be halogen, lower alkyl or lower alkoxy substituted; R1 and R11 are hydrogen, lower alkyl or monocyclic aryl, or together with the carbon atom to which they are joined are lower cycloalkyl, or CRR1R11 is phenyl, or pyridyl which may be lower alkyl substituted; R111 and R1111 are hydrogen or lower alkyl; the word "lower" referring to groups containing at most 7 carbon atoms; and X is oxygen or sulphur) and alkali and alkaline-earth metal, ammonium and pyridine salts thereof, are stated to be useful as C.N.S. depressants, especially as oral hypnotics, and may be administered orally, alone or in combination with phenobartitol, diphenylhydantoin sodium, trimethadione or paramethadione.
Patent GB-586647-A (GB)
Title: Improvements in or relating to the manufacture of fly papers and the like
IPC: C07C23/12
Filed: 1944-08-11
Abstract: A fly paper comprises paper or other sheetlike material the surface layers of which are coated or impregnated with the gamma-isomer of benzene hexachloride or a mixture of isomers including a substantial proportion of the gamma-isomer.  Suitable sheet-like material includes viscose cellulose acetate, celluloid or rubber hydrochloride.  The benzene hexachloride may be mixed with other materials of a sweet or viscous nature, e.g., honey, sugar, syrup, viscous chlorinated paraffin wax or mixtures of such wax with chlorinated rubber.  The fly-paper may be prepared by painting the paper &c. with an aqueous mucilage or gum containing the benzene hexachloride in suspension or by spraying or soaking the material with a solution of benzene hexachloride in benzene, toluene, ethyl acetate, acetone, trichloroethylene, or perchloroethylene followed by drying.  The Provisional Specification describes also the use of the alpha isomer. Specifications 573,689 and 573,693, [Group IV], are referred to.
Patent GB-711101-A (GB)
Title: Improvements in electric disconnecting switches
IPC: H01H33/02
Filed: 1952-06-18
Abstract: 711,101. Air-break switches. GENERAL ELECTRIC CO. June 18, 1952 [Aug. 13; 1951], No. 15387/52. Class 38(5) [Also in. Group XXXVI] In a disconnect switch having a rotatable contact blade, the line terminal is arranged on a conducting member mounted co-axially with the blade, the terminal and conducting member being formed with co-axial races receiving a number of conducting balls. The blade 16 is secured to a socket 17 having a flange 20 mounted on the rotatable operating insulator 13 and an upwardly-directed guide pin 27 upon which the line terminal 30 is mounted. The latter has a hub portion 31 having oppositely-sloping faces 32, 33 serving as faces for the balls 26, 35 which are urged into close engagement with pin 27 by a spring 37. The balls thus support the terminal and electrically connect it to the blade. The free end of the latter has a flat tip portion 53 attached to it by a ball-and-socket connection 51, 52 allowing limited movement between the blade.and the tip. The latter enters sideways between lips 71, Fig. 6, into a housing 64 containing contact members 65, 66 which are urged together by springs 69, 70. The members 65, 66 engage opposite faces of tip 53 and of a fixed terminal bar 60 secured to the top of the fixed insulator 19.
Patent GB-902944-A (GB)
Title: Two speed hub transmission and brake
IPC: B62M11/10
Filed: 1961-04-28
Abstract: 902,944. Variable-speed gear. BENDIX CORPORATION. April 28, 1961 [July 18, 1960], No. 15396/61. Class 80 (2). [Also in Group XXXI] A two-speed hub transmission and brake for velocipedes generally similar to that described in Specification 896,670, has improved means for retarding the rotation of the high and lowspeed clutch nuts 31, 18. The retarding means for the low-speed clutch nut 18 comprise a coil spring 58 frictionally engaging a groove 52 in an extension 51 of a brake presser member 48 which is non-rotatably mounted. The ends 59 of the spring engage with lost-motion in apertures 57 of a coupling member 53 which is rotatably journalled on the extension 51 and has arms 54 engaging in slots 56 in the clutch nut 18 to form a spline connection therewith. The retarder means for the clutch nut 31 is similar, comprising a spring 67 frictionally engaging a groove in an extension 61 of the nut 31, the ends of the spring-engaging apertures in a coupling member 63 having a spline connection with the low-speed clutch nut by means of arms 64 engaging the slots 56. Lugs 66 are formed on the ends of the arms 64 to limit the separation of the clutch nuts. In operation, assuming the high-speed clutch nut to be baulked, the low-speed clutch nut 18 is prevented from rotation by its retarder and it screws along its shaft into engagement with a hub clutch surface 21. The coupling member 53 will then be driven by the nut 18 and an end of an aperture 57 will engage an end 59 of the spring, causing an unwinding action, thus diminishing the frictional engagement and allowing relative rotation between the nut 18 and the brake presser member 48. The highspeed retarder spring will be unwound in similar fashion to allow relative rotation between the high and low-speed clutch nuts. In a modification the ends of the retarder springs extend substantially radially into the coupling member apertures instead of tangentially. U.S.A. Specifications 2,865,478, 2,882,754 and 2,993,575 also are referred to.
Patent GB-1240751-A (GB)
Title: Improvements in and relating to fluidic systems
Inventor: DAVIES GUY EDWARD
IPC: F15C1/14
Filed: 1969-03-25
Abstract: 1,240,751. Pure fluid amplifiers. PLESSEY CO. Ltd. March 24, 1970 [March 25, 1969], No. 15476/69. Heading G3H. A fluid amplifier circuit comprises a momentum exchange device 6 provided with a vent passage 14, the flow resistance of which can be varied by a vortex device 26 controlled by one output 24 of proportional amplifier 16, vented at 20 into passage 14, the other output 22 of amplifier 16 providing the control input of device 6; the arrangement being such that when the circuit is operating at high-pressures the vortex device becomes choked and thereby augments any increase in pressure at output 10. In a modification Fig. 3 (not shown) device 6 has a further output 32, providing the control feed to a second vortex device (36) which receives its main flow from vent 20, and which feeds into vent passage 14.
Patent GB-438802-A (GB)
Title: Manufacture of artificial masses
IPC: C08G14/06
Filed: 1934-05-24
Abstract: Artificial masses or coatings are prepared by heating with or without pressure non-polymerized or only slightly polymerized oxyamine bases soluble in the usual solvents and containing active methylene groups in the molecule.  Additional aldehyde may be added during the formation of the base or during the hardening process.  Suitable bases may be prepared according to the process described in Specification 432,143 from phenol polyalcohols and aromatic amines using as starting phenols, phenols containing alkyl groups and polynuclear phenols such as iso-propyldioxydiphenyl and oxydiphenyl and bases such as aniline, mono- and di-alkylaniline and aminobenzylaniline.  The bases may also be produced from phenols containing --CH2C1 groups instead of methylol-groups and amines or by the action of anhydroformaldehyde aniline on phenolalcohols or the bases obtained by introducing methylol groups into oxybenzylaniline. The products may be used as binders for making laminated or rolled insulating material, moulding powders and coatings.  In examples: (1) a solution of phenol in aqueous caustic soda is treated with formaldehyde in the cold and the product treated with aniline, the whole being neutralized or made acid with hydrochloric acid.  The oily product may be diluted with alcohol and used to coat paper or webs which may be dried and laminated.  (2) The resin produced in example 1 of Specification 432,143 is mixed with wood flour and moulded.  (3) Crude cresol (containing 60 per cent m-cresol) is condensed with formaldehyde, treated with aniline in the presence of acetic acid or hydrochloric acid and further treated with hexamethylenetetramine or formaldehyde to yield a resin that is worked up as in example 1 or 2.  (4) Oxybenzylaniline (prepared by heating oxybenzyl alcohol and aniline) is treated with formaldehyde in the presence of caustic soda to yield a product soluble in alcohol and benzene or acetone which is worked up as in example 1 or 2.  (5) Polymethylolcresol is converted into a dioxypropyl ether by means of glycol chlorhydrin and the product, after treatment with aniline in the presence of hydrochloric acid, is further treated with an aldehyde such as formaldehyde or furfurol and moulded.  (6) The resin made in example 3 of Specification 432,143 is worked up as in example 1 or 2.  (7) Polymethylolcresol is treated with aniline in the presence of hydrochloric acid and then with formaldehyde and the product, in solution, is further treated with formaldehyde and moulded with or without the addition of a filler.  (8) The resin made in example 5 of Specification 432,143 is mixed with wood meal and moulded.
Patent GB-572410-A (GB)
Title: Improvements in or relating to the manufacture of styrene from ethyl benzene
IPC: C07C5/333
Filed: 1940-10-21
Abstract: Styrene is prepared by passing the vapour of ethylbenzene, alone or in admixture with steam, over a catalyst comprising an oxide of vanadium at a temperature above 500 DEG  C.  The catalyst is preferably mounted on a non-carbonaceous support such as alumina or magnesia, and the preparation of a catalyst is described by impregnating activated alumina granules with a solution of vanadium pentoxide, e.g. in aqueous monoethanolamine, and reducing the ignited product with hydrogen at about 550-600 DEG  C.; reduction with hydrogen is not essential since ethylbenzene itself functions as a reducing agent at the working temperature.  The steam is preferably present in the volume proportions of 2-10 for 1 of ethylbenzene. Revification of the catalyst may be effected by heating to above 500 DEG  C. in the presence of oxygen.  An example is given. Specification 514,587 is referred to.
Patent GB-602314-A (GB)
Title: Improvements in coatings and laminations
IPC: G02B5/30
Filed: 1944-08-15
Abstract: Optically isotropic laminations are formed by applying a liquid plastic solution (see Group IV (a)) to the surface of a transparent support, rotating the element about an axis perpendicular to the surface until the solution forms a thin, uniform coating on the element, and forming another coating thereon or bringing it <PICT:0602314/III/1> into adhesive contact with another similarly formed coating on a support.  The coatings on the two elements may be treated with a plasticizer and laminated together, preferably under a small pressure and at an elevated temperature.  Colour filters may be made by employing coloured plastic solutions and polarizers may be formed by depositing successive thin layers having different indices of refraction, the solvent employed in one layer having no dissolving action on the preceding layer.  Achromatic lenses may also be made by laminating curved surfaces together.  Films of plastic material may be produced by applying the solutions to the support, drying each coating by removing the solvent by rapid rotation and/or by heating and finally stripping the film from the support.  Apparatus for carrying out the invention consists of a glass plate 14 on which is shown a gob of plastic 15.  Cover plate 23 protects the coating on the plate from threads of plastic thrown off during the spinning.  A spinning shaft 30 rotates the table.  The glass plate or other optical element used as support should be bevelled round the edge to compensate for the thickened peripheral plastic bead formed by the rotation, so that a flat coating is obtained.  The plate is afterwards heated and subjected to a current of air to remove the solvent.  Instead of the protecting plate 23 there may be employed wires extending outwardly or upwardly from the support to intercept the plastic threads, or vanes may be positioned so that the turbulent air directs the threads downwards.ALSO:<PICT:0602314/IV(a)/1> In the manufacture of optically isotropic elements (see Group III), plastic solutions are applied to a support which is rotated until a thin coating is formed and further coatings are applied or the coated element is brought into adhesive contact with another similarly coated support.  Suitable plastic materials are polyvinyl formal and acetal dissolved in trichloroethane, polymethyl and/or polyethyl methacrylate dissolved in ethylene dichloride and xylol and polyvinyl butyral in n-propanol. Plasticisers such as dibutyl phthalate and that known under the Registered Trade Mark "Aroclor" may be included in the compositions which may also be coloured.  Suitable plasticisers to effect adhesion between coated elements are blown castor oil and dioctyl phthalate.  Films may be produced by applying the solution 15 to the support 14, removing the solvent by rotating the support by means of the shaft 30 and/or by heating, and finally stripping the film from the support.
Patent GB-1489807-A (GB)
Title: Method for coating a substrate
IPC: C23C14/56
Filed: 1975-04-16
Abstract: 1489807 Avoiding arc formation in sputtering AIRCO Inc 16 April 1975 [10 May 1974 10 Jan 1975] 15631/75 Heading C7F In a sputtering process for coating a substrate in which an insulating layer is also formed on part of a conductive target, the remainder of the target being kept clear by the ionic bombardment, formation of arcs is eliminated by applying an alternating potential to the target of frequency high enough to eliminate arcs but not so high as to require impedance matching. Said frequency may be 400 to 60,000 Hz. Typically the practice is used in a reactive sputtering process wherein a metal, e.g. Ti, Al, Sn, V, Ta, Nb, In or Zr is reactively sputtered in O 2  or N 2  on to a substrate such as glass using a plasma confined by a magnetic field, wherein there is a danger of the metal target becoming coated with an insulating oxide or nitride film which gives rise to high current arcs which can damage the power supplying apparatus.