baber/WOPTO huggingface dataset:
Patent GB-1213241-A (GB)
Title: Improvements relating to photographic exposure control apparatus
Inventor: BIBER CONRAD HEINRICH
IPC: G03B7/083
Filed: 1968-03-21
Abstract: 1,213,241. Exposure control apparatus. INTERNATIONAL POLAROID CORP. March 21, 1968, No.13735/68. Heading G2A. The subject-matter of this Specification is substantially the same as that disclosed in Specification 1, 206, 331, but also includes a switching device 82 which places the light sensitive elements in parallel for flash operation upon insertion of a flash plug 86.
Patent GB-341369-A (GB)
Title: Improvements in or relating to spectacle lens mounting
IPC: G02C1/08
Filed: 1930-05-05
Abstract: 341,369. Spectacles. CONTINENTAL OPTICAL FRAME CO., 97, Runyon Street, Newark, New Jersey, U.S.A. May 5, 1930, No. 13800. Convention date, Jan. 29. [Class 97 (i).] The mounts for the lenses of spectacles are provided with a covering plate, which is ornamented in such a manner that when cut the line of contact of the lugs is indiscernible. The ornamental covering plate 7 is secured to the front faces of the lugs 2, 3 while the latter are separated as shown in Fig. 3, a part 8 of the plate being left plain and positioned over the space between the lugs. The plate 7 is then cut centrally removing the plain portion 8, the design on the two parts meeting as shown in Fig. 5.
Patent GB-717073-A (GB)
Title: Improvements in fountain pens
IPC: B43K5/04
Filed: 1952-05-30
Abstract: 717,073. Reservoir pens. WAGNER, E. V. April 21, 1953 [May 30, 1952], No. 13818/52. Addition to 712,931. Class 146(3) In a reservoir pen having a feed bar and surrounding nose constructed as described in the parent Specification, a forward part of the nose carries the nib and feed bar and is detachable from a rearward part of the nose. As shown, a stem a carries an ink sac i and has a portion a<SP>1</SP> forming the rear of the nose which receives a spigot d carrying a nib e, feed bar f, and nose cap g. The cap g has a rib g<SP>1</SP> to facilitate unscrewing the spigot d from the portion a<SP>1</SP>, to permit replacement by another combined nib, feed bar, and nose cap. According to the Provisional Specification, the nose cap may be threaded directly into the end of the rearward portion of the nose, thus permitting removal of the nose cap with the feed-bar and nib. Further, the feed-bar may be in two parts, only one of which is removable with the nose cap, Specification 712,920 also is referred to.
Patent GB-1131693-A (GB)
Title: Torsional coupling
Inventor: KAATZ HERBERT WILHELM
IPC: F16D3/74
Filed: 1967-03-23
Abstract: 1,131,693. Shaft couplings. AIRBORNE MFG. CO. 23 March, 1967 [28 March, 1966], No. 13833/67. Heading F2U. A torsionally resilient shaft coupling providing torsional vibration damping comprises a tubular member 50 of elastomeric material, e.g. synthetic rubber, polyurethane, or polypropylene, with end flanges 52, 53 having bores 54 to receive axial pins (43) of rotary input and output members (39, 38) (Fig. 1, not shown), and a rod 55 force-fitted into the tube bore 51 and having a central necked portion 58. End flanges 60, 61 on the rod 55 resist axial elongation of the tube member. Friction between the ends 56, 57 of the rod and the bore 51 provides torsional damping. When unloaded, the coupling is as shown in Fig. 2, and has low torsional stiffness. As torque increases, the tube pulls into the necked portion 58 until it is in full contact therewith (Fig. 4), the stiffness then being much higher. The coupling is preconditioned to reduce its natural resonant frequency by applying a static torque to produce a torsional deflection of 180 degrees for a short period. The output and input members (38, 39) are of plastics reinforced with glass fibre and impregnated with molybdenum disulphide. The coupling is included in a sliding-vane rotary vacuum pump of the type described in Specification 1,113,478 (see Division F1
Patent GB-1267532-A (GB)
Title: Preparation of diapositive film for use in projection
IPC: B41M5/36
Filed: 1969-03-17
Abstract: 1,267,532. Thermographic processes. RICOH K.K. March 17, 1969 [March 19, 1968], No. 13888/69. Heading G2C. A thermographic process comprises exposing to an infrared radiation an assembly consisting of a porous sheet of thermal conductivity not more than 0À1 Kcal/m. hr. ‹C., having a structure of interlacing fine fibres and being at least 40% transmissive to light a thermoplastic film 10Á to 15 degrees Á thick and being at least 60% transmissive to light and an original so that the film in the areas corresponding to the image areas of the original becomes heated and forms a wrinkled image less transparent than the film. Specified thermoplastic films are polyethylene, polypropylene and polyvinyl chloride. Specified porous sheets are Japanese and stencil papers and gauzes made of fabric. It is stated that the use of the sheet improves image resolution and density.
Patent GB-1427916-A (GB)
Title: Gas turbine cooling
IPC: F01D5/18
Filed: 1968-12-19
Abstract: 1427916 Gas turbine engines; turbine blades; cooling GENERAL MOTORS CORP 19 Dec 1968 [19 Dec 1967] 13906/70 Divided out of 1427915 Headings FIG and FIT The description is similar to that of the parent Specification 1427915 but the claims are directed to the cooling of the outer and inner annular shrouds.
Patent GB-1462338-A (GB)
Title: Optical light guide
IPC: C03C4/00
Filed: 1975-04-04
Abstract: 1462338 Lasers MAX-PLANCK-GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN EV 4 April 1975 [11 April 1974] 13967/75 Heading H1C [Also in Division C1] An optical light guide has a cover which is at least partly enclosed by a cover, the core having at least one section comprising laser-active ions in a carrier which is an aqueous phosphoric acid solution, a vitreous phosphate compound or a crystalline phosphate. The phosphate may have the formula Me<SP>3+</SP>(PO 4 +nP 2 O 5 )<SP>3-</SP>, where Me is at least one metal and has an overall triple charge, and n is an integer. The laser ion, which may be present in a concentration of 10<SP>19</SP>-10<SP>22</SP>/ cm<SP>3</SP>, may be Eu, Nd, Ho, Tb, Sa, U, Yb and/or Cr. Ions of Cr and/or Co may be included to increase the pumping efficiency. Ions of Na, K, Li and/or Si may act as stabilizers, while the lattice may be modified by ions of La, Tl, Y, Sc, Gd, In, Ce, Lu, B, Al, U and/or Ga. The light guide may be in the form of a clad fibre or a coated substrate. In the latter embodiment, the substrate may be a La/Gd pentaphosphate coated with a core comprising NdP 5 O 14  as laser-active material. In a clad fibre, the vitreous core may be produced by heating at 800‹ C. either: (a) Z part (by weight) neodymium pentaphosphate, 1 part P 2 O 5  and 1 part lithium phosphate; or (b) 1 part neodymium pentaphosphate, 1 part soda/potash mixture and 2 parts silica. The covering or cladding may be quartz or flint glass. The clad fibre light guide (12) is made (Fig. 1) by drawing simultaneously core glass 4 and cladding glass 7 (from concentric chambers 1 and 5 respectively) through point die 3 and annular die 6 respectively. The process is preferably conducted in an atmosphere of P 2 O 5  or Ar. The coated substrate light guide may be made (Fig. 2) by applying core 4 and cladding 7 simultaneously to heated moving substrate 18. The chambers and dies in each form of the apparatus may be of vitreous carbon, diamond, boron carbide or silicon carbide.
Patent GB-317741-A (GB)
Title: Improvements relating to dust separating apparatus
IPC: B01D45/02
Filed: 1928-05-12
Abstract: 317,741. British Rema Manufacturing Co., Ltd., and Kahler, L. May 12, 1928. Pneumatic separating. - In apparatus for separating and classifying fine granular material, as in connection with grinding operations, of the type in which the material carried in an air stream passes up the annular space between two cones A, B, and through a series of adjustable tangential ports at a, in the inner cone to an outlet D, the direct passage to the outlet is obstructed by the provision of a conical baffle F which is adjustable in height. The inner surface of the baffle may be provided with one or more rings f. In the construction shown in Fig. 2, the dust laden air enters the apparatus by the passage C, and meets the deflector H which causes a deposition of the heavier grades into the discharge outlet E. The material deposited in the inner cone A is released by flap valves a<1> and to prevent direct passage from the inlet to the outlet during the time that these are open, a deflecting member J may be provided. Fig. 3 shows a modification in which a second discharge tube E' is provided for deposited material.
Patent GB-1421482-A (GB)
Title: Thermal processing device
IPC: H05B3/00
Filed: 1973-03-22
Abstract: 1421482 Heat-processing device EASTMAN KODAK CO 22 March 1973 [23 March 1972] 13990/73 Heading G2X [Also in Division H5] A device for heat-processing a sheet or strip of material bearing one or more latent images comprises a roller 10 having cylindrical core (11) carrying an outer layer 12 of electrically insulating elastomeric material, a ceramic electric heating element 21 extending longitudinally of the roller and having a surface which is continguous to at least a portion of the surface of the outer layer of the roller, means for connecting a potential source 25 to element 21 for generating heat, and drive means 13, 16, 18, 19 coupled to roller 10 so that in use the outer surface of roller 10 transports the sheet or strip to be processed at a predetermined continuous rate in thermally conductive contact with the adjacent surface of the heating element. The temperature of roller 10 may be controlled using a thermistor 26 or a heating element which undergoes a change in resistance on heating; high voltage A.C. may be used for fast warm-up.
Patent GB-339585-A (GB)
Title: Improvements in or relating to reels for kinematograph films
IPC: G03B21/32
Filed: 1930-05-07
Abstract: 339,585. Kodak, Ltd., (Assignees of Wittel, O.). May 9, 1929, [Convention date]. Kinematograph apparatus.-A take-up reel comprises a flange 2 mounted to slide axially on a hub 1; the hub may be open on one side and may house a temporary hub member 3. As shown, the hub comprises a plate 4 carrying spaced arms 5 and a tubular boss having a flange 8; a square opening 12 is provided in the plate. The flange 2 is slotted to engage the arms 5, and may be held in the position shown by a spring 18 engaging the flange 8 and a sleeve 14 slidable on the boss 7. The member 3 consists of a spring strip bent at the ends 20 to enable it to be compressed for insertion in the hub 1. The film, when completely wound on the hub, may be surrounded by a retaining band and removed from the hub by sliding the flange thereon, the temporary hub member being pushed into the middle of the coil. A construction is described in which the tubular boss is slotted at its outer end to receive a pivoted latch on the driving shaft, the sleeve 14 is secured to the flange, and has slots to register with the slots in the boss; the spring is omitted.
Patent GB-713246-A (GB)
Title: Process for the production of a steel with fixed nitrogen content
Inventor: KOSMIDER HANS
IPC: C21C5/34
Filed: 1950-06-06
Abstract: A process for the manufacture of steel having 0.003 to 0.01 per cent. nitrogen in an acid converter from an iron containing more than 0.2 per cent. silicon, or in a basic converter from an iron containing more than 0.6 per cent. phosphorus, comprises blowing the iron with a mixture of steam and an oxygen-containing gas composed essentially of oxygen and nitrogen, the steam content of the mixture being between 14.3 per cent. and 66.66 per cent. and the oxygen-containing gas having an oxygen content of 50-94 per cent.  In the acid process the blowing may commence with air or oxygen-enriched air and change to the steam-oxygen-nitrogen mixture in the middle of the decarburization, and in the basic process the change may be made at the beginning of the dephosphorization.  The mixture may, however, be used throughout the whole blow.
Patent GB-406259-A (GB)
Title: Improvements in or relating to electrical indicating or measuring devices
IPC: G01P3/46
Filed: 1932-05-17
Abstract: 406,259. Electrical speedometers and odometers; dynamo-electric machines. WESTINGHOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.- (Assignees of Smith, B. H.; 191, Thomas Street, Bloomfield, New Jersey, U.S.A.) May 17, 1932, No. 14070. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 17, 1932]. [Class 106 (iii).] An electrical speedometer and odometer are actuated respectively in accordance with the voltage and frequency of an A.C. generator actuated by a vehicle shaft. The current generated may be rectified for use with D.C. instruments. The electrical speedometer and odometer comprises an A.C. generator, the rotor of which is a cobalt steel magnet 12 driven from shafts 11, 13, and the stator of which is a winding 31 from which A.C. is led to the terminals 41, 42 and thence to an A.C. voltmeter free from frequency errors, e.g. of the repulsion-vane type, or through a full-wave copper-oxide rectifier 63 to a D.C. voltmeter, e.g. of the d'Arsonval type, 61, Fig. 7. Ball bearings 15 and grease-retaining rings 17 and 18, Fig. 1, are provided. The stator 31 is supported by a laminated structure 32 of magnetisable material, the laminations being of annular formation with inwardly directed teeth and bound together by rings 33 preferably of some insulating material, e.g. a phenolic condensation product. The generator housing 16 has a detachable cover portion 36 and the tapered portion of the fitting 23 is split axially to hold the stem portion of the generator housing as in a chuck. The voltmeters can be graduated in terms of speed. The A.C. generator can be tapped for two-phase output and each phase connected to the voltmeter through a separate full-wave rectifier, Fig. 7. If desired the rectified current may be filtered. Odometer drums 72 are driven from a synchronous motor 73 of the magnetic-remanence type driven from the A.C. generator actuating the voltmeters and having a speed independent of the A.C. voltage and only dependent on the frequency of that voltage i.e., on the speed of the driving shaft. The synchronous motor 73 is preferably of a construction similar to that utilized for driving electric clocks.
Patent GB-801092-A (GB)
Title: Improvements in or relating to charging apparatus for horizontal coke ovens
IPC: C10B31/04
Filed: 1957-05-02
Abstract: 801,092. Charging coke ovens. KOPPERS CO., Inc. May 2, 1957 [June 20, 1956], No. 14076/57. Class 51 (2). Apparatus for top charging horizontal coke ovens comprises a carriage 20 on which is mounted a vertical Flapman type conveyer 32 receiving preheated coal through a shoot 64 fed from a series of hoppers 26 one in front of each oven chamber, and a horizontal Flapman-type conveyer 31 extending over the battery, being fed by said vertical conveyer and discharging through telescopic shoots 59 engaging oven chamber openings 24. The horizontal conveyer system is supported by standards 41 on the carriage 20 and runs on a pair of wheels 43 on a rail 45 on top of the battery, so that it moves as a unit with said carriage. The conveyers 31, 32 each comprise endless conduits with an internal chain of links 46 connecting discs 47. The vertical conveyer is driven by a motor 49 and discharges into the lower run 38 of the horizontal conveyer which is driven by a motor 51. Each discharge point has a branch conduit 40 provided with a screw conveyer 57 driven by a motor 58, Fig. 5. A spillage trough 61 mounted on the pusher side bench supports 62 is fed by a spillage shoot 60 and provided with Flapman-type conveyers 63 collecting the coal and feeding the bunkers 26 at one end of the battery. Also mounted on the carriage is a leveller bar 23 driven from a motor 51 by a rope drive 56, and a pusher ram 22 driven by a motor 53 through gearing 54.
Patent GB-569949-A (GB)
Title: Improvements in or relating to riveting
IPC: F16B19/10
Filed: 1943-08-28
Abstract: 569,949. Handles for utensils. MELLOWES & CO., Ltd., and COWAN, W. B. Aug. 28, 1943, No. 14091. [Class 66] [Also in Groups VII and XXII] In making a riveted joint a hole is made through the objects, such as plates 10, 11, 12, Fig. 1, to be united and tubular or semi-tubular rivets 14 are inserted into the ends of the hole with their inner ends separated by a block 16 and with the surfaces which contact the rivet ends diverging. The inner ends of the rivets are upset by force applied to the rivet heads. A deformable tube may line the rivet hole to facilitate assembly of the parts. Where the ductility of the inner part does not approach that of the rivets, a hollow 19 may be provided, as in Fig. 7, wherein the rivet ends may be upset. The block 16 may be a ball of hardened steel, as in Fig. 1, or a cylindrical member 21, with its length dependent on the thickness of the joint and one of a standard range of rivet lengths, and with conical ends 22. The lining tube and other internal parts may be treated to prevent corrosion. The joint is stated to be suitable for riveting tubular parts together or for securing a handle, such as 17, Fig. 7, to a utensil 18, particularly where the handle is of brittle material.
Patent GB-557653-A (GB)
Title: Improvement in electric cables
IPC: H01B9/02
Filed: 1942-10-07
Abstract: 557,653. Electric cables. OKONITE-CALLENDER CABLE CO., Inc. Oct. 7, 1942, No. 14092. Convention date, Oct. 3, 1941. [Class 36] In an electric cable insulated by oil-impregnated tape wrappings, movement of impurities into the main insulation is prevented by filter barriers, with electrostatic shielding, immediately adjacent the conductor and the sheath. The barrier consists of paper impregnated with carbon black or unimpregnated filter paper, and the paper is metallized on one face to form the screen. The metal should not react with the fluid insulation, aluminium being suitable. The core conductor 2 has a filter wrapping 4 with metal surface facing outwards to the main paper insulation 8 which receives a filter wrapping 10 with metal surface facing inwards. The cable is impregnated prior to the application of the lead sheath 14.
Patent GB-458180-A (GB)
Title: Improvements in collapsible containers for paste-like substances
IPC: B65D35/00
Filed: 1935-05-14
Abstract: 458,180. Collapsable tubes. HARRIS, F. G., 177, St. Andrew's Road South, Lytham- St.-Annes, Lancashire. May 14, 1935. No. 14095. [Class 66] Collapsable tubular containers are made of transparent cellulose tissue capable of being wetted and softened by the watercontaining contents. The tubular bodies may be formed from sheet material or by an extrusion process, and may be sealed in the usual way at one end and provided at the other with screwed neck portions and closure caps, also preferably of cellulose. Alternatively they may be fitted with end discs, one of which is apertured, the contents then being expressed either by end pressure applied to the container whilst enclosed in a rigid casing, or by twisting the container. Reference has been directed by the Comptroller to Specification 310,976, [Class 11].
Patent GB-1482872-A (GB)
Title: Flap valve
IPC: F16K15/03
Filed: 1975-04-07
Abstract: 1482872 Valves GUSTAV F GERDTS KG 7 April 1975 [28 May 1974] 14124/75 Heading F2V  The loading springs 9, 10 of a pivoted flap check valve comprise two arms 12, 13 joined by at least one turn 11 arranged essentially parallel to the back face 8 of the flap 4. The springs are so prestressed that a reduction in the distance between the outer ends of the arms will reduce the force acting along a line joining the ends of the spring. As the flap opens this distance is reduced resulting in a reduction of the loading force as the valve opens. The loading is further reduced as the valve opens as the leverage of the spring force is also reduced as a consequence of the relative positions of the pivot and the spring anchor points.
Patent GB-1515787-A (GB)
Title: Constant beamwidth antenna
IPC: H01Q19/06
Filed: 1976-04-07
Abstract: 1515787 Aerials RAYTHEON CO 7 April 1976 [1 May 1975] 14144/74 Heading H4A An antenna assembly for producing a plurality of directional beams of electromagnetic energy and having constant beam width over a frequency range, comprises a printed circuit lens 10 having a plurality of feedports 20 disposed along a focal arc and contiguous with an irregularly shaped microwave lens 24, in microstrip form on a printed circuit sandwiched between and insulated from, copper ground planes 34. The lens 24 is in turn connected to a greater number of stripline feeds 26 along respective transmission lines to respective aerial elements 28. A radio frequency absorbing material, providing frequency dependent attenuation, is disposed at 36 1 , 36 2  across the transmission lines 26 such that the amount of material effective in a transmission line varies in a progressive manner from transmission line to transmission line.
Patent GB-1134619-A (GB)
Title: Improvements in needle-beds for domestic knitting machines
IPC: D04B15/10
Filed: 1967-03-28
Abstract: 1,134,619. Knitting-machines. EMPISAL (PTY) Ltd. 28 March, 1967 [1 April, 1966], No. 14178/67. Heading D1C. A needle bed for a domestic knitting machine comprises a base 12 having flanges 14, 16 having slots to guide the needles. Cross pieces 24 engaging in further slots in the flanges strengthen the bed and guide the needle butts. The cross pieces are held in place, and the movement of the needles limited by a displaceable slide 28. The cross pieces may be elongated and extend through the slots to provide a comb in place of the comb 34 integral with the base 12.
Patent GB-751417-A (GB)
Title: A convertible table
IPC: A47B9/18
Filed: 1954-05-14
Abstract: 751,417. Tables. DUCROT, A. May 14, 1954, No. 14230/54. Class 52(3). A table which is extensible and vertically adjustable has top panels 3, 4, hinged together and rotatable about a vertical axis on a frame 5 which is connected to the table frame 1 by pairs of links 20, 21, 22, 23, rigidity being increased by rods 26, 27, 29. The frame 5 is lifted until the lower links 20, 22 bear against the frame 1. The top panels may be rotated and unfolded in either the high or low position to increase the top area.
Patent GB-1098911-A (GB)
Title: Waste disposal system
IPC: C02F11/126
Filed: 1965-04-05
Abstract: 1,098,911. Rotary drum filter. AIR PREHEATER CO. April 5, 1965 [April 23, 1964], No. 14276/65. Heading B1D. [Also in Division F4] Solids to be burnt in a furnace 34 is separated from a waste slurry by a rotating drum filter 24, hot combustion gases from a duct 30 passing through the solids on the filter drum to outlets 36.
Patent GB-119531-A (GB)
Title: Improvements in Machinery for use in the Production of Flour and Starch from Potatoes and other Tubers and Roots and other Materials.
Inventor: MCLEOD ROBERT GRAY
IPC: C08B30/02
Filed: 1917-10-04
Abstract: 119,531. McLeod, R. G. Oct. 4, 1917. Impact pulverizers.-Relates to a machine for comminuting potatoes or other tubers or rice and other materials in the manufacture of flour or starch. Pulverizing arms or blades a are carried by a drum b fixed on a shaft c driven by a belt on the fast and loose pulleys d, e. The beaters work within a circular gauze casing k secured in an outer frame or casing i provided with a feed-hopper j. with outlets o, for the pulverized material passed through the gauze k, and with an outlet p with delivery spout r for the material discharged from the casing k too coarse to pass through the gauze. Water is fed with the potatoes or other material through the hopper j.