baber/WOPTO huggingface dataset:
Patent GB-495821-A (GB)
Title: Improvements relating to colour photography and colour cinematography
IPC: G03B33/16
Filed: 1937-05-13
Abstract: 495,821. Colour photography and kinematography. DAVIES, J. May 13, 1937, Nos. 14134/36, 30039/37, and 12949/38. [Classes 97 (i) and 98 (ii)] Colour separation negatives are produced by making the exposures through colour filters each comprising a yellow basic layer and a coloured secondary layer. The yellow basic layer is made by pouring gelatine solution on to a glass plate and after setting the gelatine film is stripped off, preferably hardened and dyed with auramine or tartrazine. The secondary layer may be produced in the same way and dyed with xylene red or rhodamine for a red filter or with patent blue and/or malachite green for a blue-green filter. The secondary layer may be of collodion and dyed while liquid, and run, while still liquid, on to the basic layer. Three colour filters may be used for producing three colour separation negatives for use in three-colour photo-mechanical printing. In taking colour separation negatives in kinematography the colour filters may be arranged over the upper and lower sections of a double lens mounted in the form of a detachable cap fitting over the usual camera lens and adapted to throw two images in each frame of the film. The upper and lower lens sections may be almost semicircular with their chords abutting to avoid parallax. Each frame pair of colour records is projected in superimposition upon a screen by the usual projector lens system fitted in front with a double lens similar to that used in taking the negative, one section being provided with an orange-red filter which may be provided on the lens itself and the other section unprovided with a filter. The red records are projected through the red filter lens section and the green records through the clear lens section. If desired a double-section part-colour filter lens as described above may be fitted in the projector after removal of the ordinary lens used for showing uncoloured pictures, but it may be formed as a separate cap lens adapted to be slipped on in front of the ordinary projecting lens. In order to avoid over-accentuation of red tints when colour separation negatives are taken in electric incandescent lighting an additional blue filter is disposed in front of or behind the camera lens so as to extend over the red filter only or over both colour filters.
Patent GB-232441-A (GB)
Title: Improvements in molds for use in the centrifugal casting of metals
IPC: B22D13/10
Filed: 1924-06-11
Abstract: 232,441. White, A. E., (International De Lavaud Manufacturing Corporation, Ltd.). June 11, 1924. Casting-machines; moulds; clamping moulds. -Moulds for use in centrifugal casting, particularly for pipes, are provided wholly or in part with a liner L which is spaced, except at the seating L<1>, from the mould body when cold. The lining expands into contact with the body under the heat of the metal and compressive strain is thus largely relieved at the mould face. The lining is flanged at L<4> and is retained against a face A<7> by a coned projection A<6> on an end plate E<1> secured by bolts G in the spring washers G<2> underthe nuts. The end plate receives the base ring D, of the socket end core, locked in place by wedges F. When only the socket end is lined the end l<1> of the lining seats against the end of the enlarged section of the mould but when the whole mould is lined the end is coned to engage the body lining l which is also coned at the outer end to engage the end plate L resiliently clamped at J<2> the cones centre this lining to leave a uniform space. The mould is supported bv a cooling jacket B, packing being provided at C.
Patent GB-458668-A (GB)
Title: Apparatus for testing objects with filtered ultra-violet rays
IPC: A61N5/06
Filed: 1935-05-15
Abstract: 458,668. Discharge lamps. QUARZLAMPEN GES., 1, Frankfurter Landstrasse, Hanau-on-Main, Germany. May 15, 1935, No. 14279. Convention date, May 15, 1934. Drawings to Specification. [Class 39 (i)] [See also Group XX] An apparatus for examining objects by ultra-violet light comprises a high-pressure mercury vapour lamp, the envelope of which is transparent to ultra-violet rays but opaque to visible rays ; the lamp has preferably oxide electrodes and a rare gas filling.
Patent GB-972105-A (GB)
Title: Fitting for conduit tubes
IPC: F16L27/08
Filed: 1963-04-10
Abstract: 972,105. Pipe couplings. R. E. BRUMBACH. April 10, 1963 [Nov. 6, 1962], No. 14341/63. Heading F2G. A fitting for attachment to the end of a tube comprises a hollow elongated element 15 having a shoulder 18 separating its ends 16 and 17, the former of which is adapted, as at 19, to be retained frictionally in the tube, a swivelling body 20 sealingly engaging the shoulder 18 and rotatable on the end 17, and a resilient keeper 30 overlying the tube and movable along it from a position where it does not engage the swivelling body 20 to a position where it does engage it and thereby restrains its rotation. The rotatable joint is sealed by an 0-ring 28 in a recess 21. The body 20 is retained on the element 15 by swaging the end 17 as at 26. The tube is of polypropylene and is heated to about 250‹ F. in a glycol bath to render it plastic for insertion of the end 16. The surface of the swivel body 20 is polygonal at its maximum diameter to adapt it for manual rotation.
Patent GB-800320-A (GB)
Title: Process for the treatment of gases containing ethylene
IPC: C07C7/163
Filed: 1955-05-18
Abstract: Ethylene for polymerization is purified by subjecting it to the following processes in the order given, scrubbing the gas with water under pressure, scrubbing the gas with a caustic alkaline solution, subjecting the gas to hydrogenation in the presence of a catalyst containing a metal of the 8th group whereby acetylene compounds are selectively hydrogenated and drying the gas.  In an example, a gas comprising 92.6 per cent by volume of ethylene and small quantities of ethane, acetylene, carbon dioxide and oxygen was compressed and washed with water in a tower packed with Raschig rings, the compressed gas was then circulated through a second tower and washed with sodium hydroxide solution and then heated to 100 DEG  C. and passed through a tower together with hydrogen over a hydrogenation catalyst consisting of kieselguhr, nickel and alumina, finally moisture was removed by cooling to - 10 DEG  C. and passing through silica gel, granular calcium chloride, and granular pumice which had been soaked with caustic potash solution.  The resulting purified ethylene may be polymerised by passing it at a pressure of 2 kg./sq. cm. at 20 DEG  to 60 DEG  C. through a catalyst consisting of diethyl aluminium monochloride with titanium tetrachloride in a C9-C11 saturated aliphatic hydrocarbon fraction.ALSO:Ethylene is purified, particularly with a view to subsequent polymerization by subjecting it to the following processes in the order given: scrubbing the gas with water under pressure, scrubbing the gas with a caustic alkaline solution, subjecting the gas to hydrogenation in the presence of a catalyst containing a metal of the 8th Group whereby acetylene compounds are selectively hydrogenated and drying the gas.  In an example, a gas comprising 92.6 per cent by volume of ethylene and small quantities of ethane, acetylene, carbon dioxide and oxygen was compressed and washed with water in a tower packed with Raschig rings, the compressed gas was then circulated through a second tower and washed with sodium hydroxide solution and then heated to 100 DEG C. and passed through a tower together with hydrogen over a catalyst consisting of kieselguhr, nickel and alumina, finally moisture was removed by cooling to -10 DEG  C. and passing through silica gel, granular calcium chloride, and granular pumice which had been soaked with caustic potash solution.  The resulting purified ethylene may be polymerized by passing it at a pressure of 2 kg./sq. cm. at 20 DEG to 60 DEG  C. through a catalyst consisting of diethyl aluminium monochloride, titanium tetrachloride and a C9-C11 hydrocarbon fraction.
Patent GB-767527-A (GB)
Title: Improvements in or relating to mass spectrometer and electron multiplier arrangements
IPC: H01J49/02
Filed: 1954-05-17
Abstract: 767,527. Electron multipliers: mass spectrometers. BENDIX AVIATION CORPORATION. May 17, 1954 [June 4, 1953], No. 14435/54. Class 39(1). A time-of-flight mass spectrometer incorporates an electron multiplier 106 arranged to receive on its first secondarily emissive plate 104 ion bunches produced by the mass spectrometer 96 and to provide an indication of the times of reception of the various mass-groups of ions in each bunch by the amplified pulses appearing at the output oscilloscope 144 of the multiplier, the multiplier including a control electrode 116 associated with one of the other secondarily emissive plates 108 of the electron multiplier and normally biassed to such a potential relatively to the plate as to limit or prevent the flow of secondary electrons from the plate, and means 132 for supplying the control electrode 116 with positive voltage pulses at times corresponding to the reception of ions of a particular mass number on the first plate 104 of the multiplier. The electrons pursue cycloidal paths between the plates of the multiplier 106 under the combined action of the magnetic field produced by the pole pieces 40 and the electric field between the electrode 100 and the plates of the multiplier. The control electrode 116 is associated with one of the initial plates, preferably the second plate, of the multiplier, and can be in the form of a wire grid. The pulse generating device 132 is arranged to generate pulses at accurately adjustable relative instants, a first one of the pulses being applied to the mass spectrometer 96 for discharging a bunch of ions therefrom towards the first plate 104 of the multiplier, and another pulse being applied to the control electrode 116 with a delay relatively to the first pulse adjusted in accordance with the expected time of flight of the ions having a particular mass number. The construction of the spectrometer unit is substantially as described in Specification 727,683.
Patent GB-923961-A (GB)
Title: Improvements relating to electric discharge lamps
Inventor: WESTON ROBERT FREDERICK
IPC: H01J61/34
Filed: 1958-05-06
Abstract: 923,961. Discharge lamps. A.E.I. LAMP & LIGHTING CO. Ltd. April 30, 1959 [May 6, 1958], No. 14473/58. Class 39 (1). A low-pressure metal (excluding mercury) vapour-rare gas discharge lamp has an evacuated single or double walled jacket 1 enclosing an arc discharge tube 5 which is mainly of non-circular cross-section and is shaped to provide longitudinally extending recesses 12 of small radius of curvature remotely located from the arc path for the retention of molten metal, the recesses being located, in successive longitudinal regions of the tube, to lie on opposite sides of the axes of the arc path. The tube can be shaped, as shown in Figs. 2 and 3, to provide pairs of longitudinally extending recesses 12, the pairs of recesses being located, in successive longitudinal regions of the tube, to lie alternately above and below the axis of the arc path. The longitudinal regions of the tube can be of crescent or other shape in crosssection. The tube can be straight or of U-form. A heat shield 4 of light-permeable material such as glass coated with gold, can be located between the tube 5 and the container 1, or between each limb of the tube and the container. The filling can be sodium, cadmium or zinc together with a rare gas such as neon and/or argon and xenon. With a sodium filling the tube 5 is of glass lined with transparent sodium resistant material. A pressure of sodium vapour of the order of 0.9 microns is referred to.
Patent GB-480521-A (GB)
Title: Improvements in or relating to cathode ray television apparatus
IPC: H01J29/56
Filed: 1936-05-22
Abstract: 480,521. Supply systems for cathoderay tubes.RADIOAKT.-GES. D. S. LOEWE. May 22, 1936, No. 14514. Convention date, May 22, 1935. [Class 38 (iv)] [Also in Group XL] Switching control.-In television image reconstructing means for use with different numbers of scanning lines, a cathode ray tube is employed in which the image point is produced by an electron lens as the image of the aperture in a diaphragm 1, and the size of the image point is regulated by the variation of the potential of the diaphragm, while the energy of the ray is simultaneously readjusted to a desired value by variation of the potential of one of the anodes 4 of the tube so as to maintain constant the intensity of the picture. A switching arrangement is shown which performs the two variations simultaneously and also adjusts the amplitude of the deflecting potentials. The voltage for the anode 4 and that for the associated lens electrode 3, tapped from the potential divider 9, is supplied by a voltage-doubling rectifier to the load resistance 17, which has tappings a, b, c connected to the electrode 1 through studs on a double pole, three position switch S, the other poles of which are connected to tappings on the primary of transformer 10, the arrangement being such that as the voltage supplied to the rectifier is reduced, the diaphragm 1 is tapped up on the resistance 17. The voltage supply to the scanning oscillators 16 is taken from one of the reservoir condensers 14 ; consequently as the voltage on the anode rises and increases the electron velocity, the amplitude of the scanning voltage is correspondingly increased. Specifications 455,797, [Group XL], 466,770, and 468,891 are referred to.
Patent GB-1514451-A (GB)
Title: Silver-gold electroplates
IPC: C25D3/64
Filed: 1977-04-06
Abstract: 1514451 Electro-depositing Ag-Au alloys OXY METAL INDUSTRIES CORP 6 April 1977 [13 April 1976] 14580/77 Heading C7B Ag-Au alloys are electro-deposited from a bath containing a polyalkyleneimine (e.g. polyethyleneimine) and an alkylene polyamine (e.g. ethylene diamine, diethylene triamine triethylenetetramine, tetraethylene pentamine, pentaethylene hexamine and the propylene homologues thereof or the hydroxy derivatives thereof).
Patent GB-825970-A (GB)
Title: Improvements in and relating to the packaging of tetrahedral packages
IPC: B65B5/08
Filed: 1957-05-08
Abstract: 825,970. Packaging. HERMORION Ltd. May 8, 1957 [May 14,1956], No. 14643/57. Class 94(1). Tetrahedron shaped packages are automatically closely packed in three layers in transport containers by successively and intermittently advancing the containers through three successive packing stations at each of which a layer is packed, package by package, each package being packed substantially simultaneously with the corresponding packages of the other two layers, and, after each complete layer has been received by the containers, they are advanced to the next station. The apparatus shewn in Fig. 1 comprises a station IV in which the filled containers 1 are removed and the empty containers are inserted, and stations I, II, III where the first, second and third layers of packages 3 are loaded simultaneously by an intermittently moving conveyer 4 on which the packages are suspended on forks 5. Means (not shewn) are provided for rotating the containers through 60 degrees after each package is received, and for moving the containers to the next station at the completion of each layer. In the embodiment shewn in Figs. 6, 7, and 14, the tetrahedron shaped packages 17 are carried by a conveyer A to a distributor B which receives packages from those conveyer containers 16 provided with abutments 20, in a trough 21 which has a pusher 23 serving to move alternate packages to opposite ends of the trough. Every third container 16 is provided with an abutment 19 which ensures that the packages delivered from these containers are turned over by a bar 22 in the distributor and fall inverted directly into the intermediate layer container at station II. Simultaneously with the fall of this package, flaps (not shewn) in the trough 21 open and drop the packages previously moved to the ends of the trough, into the first and third layer containers at stations I and III. The conveyer and distributor are operated by gearing in timed relation with a turret table C having four rotatable container supporting pads 44 mounted at the ends of the arms of a rotatable cross 43. The arrangement of the turret table is such that after each set of packages are released the pads are rotated about their own axes through 60 degrees while on the completion of a layer the cross is stepped through 90 degrees to carry the containers to the next station. A star wheel 65, Fig. 7, is automatically lowered into the container at station III while it receives the third layer to prevent the packages sliding inwardly. The containers are locked to the pads by catches 87, Fig. 10 (not shewn) which engage the bottoms of the containers and are automatically withdrawn when the container reaches the loading and unloading station IV.
Patent GB-812237-A (GB)
Title: Wire feeder
IPC: B23K9/133
Filed: 1957-05-08
Abstract: 812,237. Rollers. UNION CARBIDE CORPORATION. May 8, 1957 [May 9, 1956], No. 14688/57. Class 42 (2). [Also in Group XXII] A roller consists of a serrated metal ring 40 having a three-lobed inner profile 41 into and round which is moulded a plastic 42 formed with a keyway 43. The roller forms part of a wire-feed mechanism in, say, an arc-welding head (see Group XXII).
Patent GB-1149838-A (GB)
Title: Capacitor
IPC: H05K3/34
Filed: 1968-03-27
Abstract: 1,149,838. Capacitors. EIRIE TECHNOLOGICAL PRODUCTS Inc. 27 March, 1968 [26 April, 1967], No. 14691/68. Heading H1M. A capacitor comprises a body of dielectric material having laterally spaced feet 4, 5 supporting it on, e.g. a printed circuit board 14, the capacitor electrodes having terminals extending to the support surfaces, and the latter having means such as a metallized layer for making soldered connections 10, 11 to, e.g. printed wiring 12, 13. The capacitor may be formed from layers of green ceramic, e.g. a titanate shaped to the cross-section of the capacitor body and bearing painted, e.g. platinum or palladium electrodes 6, (8), (Fig. 4, not shown) with extensions 7, 9 to one or other of the feet portions 4, 5. Layers are stacked with corresponding metallized areas face to face and with unmetallized layers at each end and the assembly fired. The bottoms of the feet may be abraded prior to silvering. In an alternative construction (Figs. 6, 7, not shown) a capacitor comprising electrodes parallel to the support surfaces is formed by stacking metallized ceramic layers so that alternate electrodes extend to each end, and a portion of a bottom unmetallized layer is removed to form the feet, or the feet may be formed by pressing the green ceramic. After firing, and abrading the end surfaces these are dipped in metal paint to connect sets of electrodes in parallel and provide a metal coating on the support surface for making the soldered connection.
Patent GB-1449593-A (GB)
Title: Extrusion apparatus
IPC: B29C48/56
Filed: 1975-04-10
Abstract: 1449593 Screw mixers STERLING EXTRUDER CORP 10 April 1975 [10 April 1974] 14702/75 Heading B1C [Also in Divisions B4 and B5] A single screw extruder comprises a barrel 1 having at least one interior helical groove 3 e.g. five grooves, and a screw 4 having at least one thread 4A which has a land of a width 4B axially of the screw that is equal to, or greater, than the width of the groove, and is of the same hand as the groove. The output of the apparatus is less sensitive to variations in die pressure than that of an extruder not having the groove. The groove may be of substantially the same pitch as that of the screw thread or may be within 20% or 10% thereof, and the axial width of the groove is 10 to 100%, and preferably from 20 to 90% that of the land of the screw thread. The groove is preferably of crescent shaped section and may be formed by methods such as used in gun barrel rifling, or by casting, grinding, or electromilling. The extruder barrel is fitted with heater bands 12 controlled by thermocouples 13.
Patent GB-495813-A (GB)
Title: Magneto electric machines
IPC: H02K1/27
Filed: 1937-05-27
Abstract: 495,813. Magnetos. BOHLI, J. May 27, 1937, No. 14703. Convention date, May 27, 1936. [Class 351 The field magnet of a magneto consists of several bipolar tubular permanent magnets arranged parallel to each other and to the machine axis, the magnets which have the poles on their cylindrical surfaces being pressed into contact with soft - iron pole - pieces. As shown applied to a rotor, Fig. 1, the magnets 10 are arranged with like poles facing each other, and between them are disposed laminated or solid pole-pieces 9. Non-magnetic discs 15 carried on a shaft bushing 15<1> and perforated to receive the magnets are spaced throughout the length of the core and to them are riveted the pole-pieces. In a modification, Fig. 3, the magnets 10 are disposed between a grooved soft-iron tube 12 and the pole-pieces 11, and are supported by non-magnetic discs 13 having a central hole large enough to admit the tube 12. If discs similar to the discs 15 are employed, the tube 12 must be subdivided axially and screwed or riveted to the discs. Stops are provided to prevent rotation of the magnets. The Specification as open to inspection under Sect. 91 comprises also the following : A single six-pole tubular magnet 3, Fig. 1 (Cancelled), carried by a non-magnetic cylinder on the shaft has shrunk on it a frame comprising laminated pole-pieces 5 joined together by non-magnetic rings 4. The pole-pieces may be dispensed with. In the case of a stator, a similar magnet is shrunk on to a pole-piece assembly. The magnets may be solid cylinders or may be of other forms. This subject-matter does not appear in the Specification as accepted.
Patent GB-665881-A (GB)
Title: Improvements relating to the production of vitreous glazes or enamels for coating metals
IPC: C03C8/02
Filed: 1948-06-01
Abstract: 665,881. Enamels. FRASER, R. P., and CIANCHI, A. L. April 11, 1949 [June 1, 1948], No. 14743/48. Class 56. Lead-free vitreous enamelling compositions for bonding to Al or Al base alloys have a fusion or maturing temperature below 600‹ C. and coefficient of expansion greater than 15x10<SP>-6</SP> in the temperature range 10‹-100‹ C., the main constituents expressed as mol percentages being, R 2 O 20-36, RO 17-30, R 2 O 3 , 8-17, RO 2  18-51 of which 18-36 is SiO 2 , where R 2 O stands for the oxides of Li, Na, K, RO for the oxides of Mg, Ca, Zn, Sr, Ba, R 2 O 3  for the oxides of B, Al, and RO 2  for SiO 2  with or without other Group IV oxides. Preferred compositions come within the following mol per cent ranges, Na 2 O and K 2 O with or without Li 2 O 20-36, BaO with or without CaO, or SrO, or ZnO 17-30, B 2 O 3  8-13, Al 2 O 3  0-4, SiO 2 , 18-36. The RO 2  constituent may also comprise one or more of the oxides TiO 2 , ZrO 2 , SnO,. Desirably the RO 2 + R 2 O 3  content is 61-39 mol per cent and the R 2 O+RO 41-63 mol per cent, the ratio RO 2 +R 2 O 3 /R 2 O+RO not exceeding 1.5. The dry batch composition and the frit composition in mol and weight per cent of several examples are given. The ingredients may be added as oxides, carbonates, nitrates, or silicates, and at least part of the Al 2 O 3  is added in the form of potash felspar. The ingredients are mixed, melted, fritted in water, and ground, with the addition of colouring oxides or opacifiers if desired. The frit is formed into a slip with water, applied, and stoved below 600‹ C., or may be applied by the method and apparatus according to Specification 648,279. A mixture of frits of different softening temperatures or colour may be used, or a ground frit may be mixed with powdered silica or the like to give a matt finish. The articles to be enamelled are first cleaned chemically, mechanically, or thermically. If after a first stoving the colour is satisfactory a matt or egg-shell finish may be obtained by a second stoving, but to obtain a desired colour and preserve the glaze the article may be given a second coating of slip and a second stoving. To obtain a mottled or submerged crack effect a second coating of slip is applied, quickly dried, and rapidly stoved.