baber/WOPTO huggingface dataset:
Patent GB-1378951-A (GB)
Title: Method for separating hydrocarbons especially aromatic hydrocarbons
IPC: C07C7/05
Filed: 1972-02-24
Abstract: 1378951 Distilling hydrocarbons AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE 24 Feb 1972 [26 Feb 1971] 8658/72 Heading C5E Hydrocarbons are separated by fractionally distilling the hydrocarbon mixture in contact with a phase containing an organometallic compound of Li, Na or K in which the metallic atoms are reversibly replaceable by mobile hydrogen atoms derived from at least one hydrocarbon in the mixture, and collecting (a) a liquid phase enriched with the hydrocarbon, in partly metallated form having mobile hydrogen atoms which are most readily replaceable by the metallic atoms, and (b) a vapour phase enriched with the hydrocarbon having least affinity for the metallic atoms. The liquid phase may be distilled to recover the hydrocarbon having most affinity for the metallic atoms in its unmetallated form. The organometallic compound may be used in the form of a dispersion or solution in an inert solvent which does not itself undergo metallation under the conditions of the separation, e.g. an aromatic hydrocarbon or aromatic tertiary amine or in an excess of the compound having mobile hydrogen atoms from which it is derived. The solution or dispersion may also contain (I) a tertiary amine as. basic catalyst, (2) a chelating agent, e.g. a polyamine; and (3) a hydrocarbyl compound of Mg, Zn or Al. The process may be used to separate saturated hydrocarbons from aromatic hydrocarbons or the isomers of alkyl benzenes or alkylnaphthalenes. Examples describe the separation of xylene isomers by distillation in the presence of phenylsodium or the Na or K derivatives of dimethylaniline dissolved in dimethylaniline, cumene or t-butylbenzene
Patent GB-242156-A (GB)
Title: Improvements in or relating to electric terminals
IPC: H01R4/48
Filed: 1925-04-01
Abstract: 242,156. Breeden, F. V. April 1, 1925. Binding - posts and terminals.-A terminal for accommodating pin or spade terminations of electric leads comprises a core a secured to a base c by a screw d and nut e, and a slidable sleeve g forced outwardly by a spring i, but limited in its movement by the head a<3> of a shank a<2> screwed into the core a. Transverse holes f, g<3>, g<4> are formed in the core and sleeve. A spade termination be gripped between the underside of the head a<3> and the upper end of the sleeve g. The end of a wire or pin termination can be inserted through the holes f, g<3>, g<4> when the sleeve g is pressed down so as to align the holes, and is gripped when the sleeve is released. The sleeve and core may be of angular horizontal section so as to prevent relative rotation. The .underside of the head a<3> may be formed with grooves m, Fig. 7, so that pin terminations may be gripped between the head and the top of the sleeve. Alternatively or in addition the top of the sleeve may beformed with similar grooves.
Patent GB-1499073-A (GB)
Title: Method of and apparatus for bending glass sheets to relatively sharp angles
IPC: C03B23/027
Filed: 1976-03-05
Abstract: 1499073 Bending sheet glass LIBBEYOWENS-FORD CO 5 March 1976 [14 March 1975] 08836/76 Heading C1M A glass sheet 22 is bent about line 23 by applying a first electrically conductive path 24 along the entire line 23, and second such paths 26, 27 and angularly related portions 28, 29 extending to opposite marginal edge portions of the sheet, passing current to path 24 via paths 26, 27 to heat and soften the sheet along line 23, and causing the sheet to bend about said line. The sheet may be heated to 900-1150‹ F. before passing the current to heat it (along line 23) to above 1200‹ F. Paths 26, 27 preferably have a greater cross-section than path 24, so that the second paths 26, 27 are not heated. The sheet 22 is preferably bent using mould assembly 31 (Fig. 3), which comprises an outline mould 32 mounted on frame 33. The outline mould 32 has two sections 37, 38 pivotally connected by hinge assemblies 40. The sheet is initially supported on rail 42, and contacts 70 are provided which also act as locating members. The contacts 70 are supplied with current via bus-bars 90, 91, and supply heating current to conductive paths 26, 27 through portions 28, 29 (Fig. 2). As the glass softens along line 23, the mould sections 37, 38 are allowed to pivot, so that the sheet sags into the mould. A series of sheets mounted on mould assemblies 31 may be conveyed on rollers through a furnace (Fig. 4, not shown) in which current is passed at several spaced locations.
Patent GB-1536202-A (GB)
Title: Display control circuit device
IPC: G09G3/04
Filed: 1976-03-05
Abstract: 1536202 Alpha-numeric displays and circuits therefor CITIZEN WATCH CO Ltd 5 March 1976 [11 March 1975] 8877/76 Heading G3T [Also in Division G5] A drive circuit arrangement for a multi-segment liquid crystal display comprises a respective drivercircuit 161-167 Fig. 2, for each segment and a further driver circuit 109 controls all the other driver circuits whereby they can activate their respective segments L S only when permitted by driver 109. According to the logic level of a signal Sb, the _output of 109 is an alternating potential at # 32  or # 32 . If the output is # 32 , then irrespective of the state of segment control signals Saa, Sab &c. the segments will remain deactivated. Each driver circuit includes an inverter and two transmission gates, as illustrated Fig. 5 (not shown).
Patent GB-941433-A (GB)
Title: Improvements in or relating to circuit arrangements embodying electron discharge devices
Inventor: LODGE JAMES ALEC
IPC: H01J31/36
Filed: 1959-03-14
Abstract: 941,433. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES Ltd. March 10, 1960 [March 14, 1959], No. 8902/59. Heading H1D. In an arrangement embodying a cathoderay tube in which electrons are accelerated towards one surface of a target 2 to form negative charges thereon, the opposite surface of the target being provided with a mosaic of electronemissive elements, an electrode 8 is provided adjacent to the target, to which a voltage is applied to set up over the area of and in proximity to the surface on which the electrons are projected an equipotential which is negative with respect to the surface whereby electrons which may tend to move away from the surface are returned thereto without substantial spread. The electrode 8, preferably a foraminated grid, may be secondary electron emitting so as to amplify the incident stream, and the velocity of the incident stream may be such as to release secondary electrons from the target which are also returned thereto by the electrode 8. In the embodiment shown, 4 is a photo-cathode giving rise to the incident stream and the target 2 has photo-emissive elements 3 which are scanned by a light spot to give picture signals at 18. Specifications 895,019 and 902,090 are referred to.
Patent GB-555826-A (GB)
Title: Improvements in or relating to lubricants for ammunition
Filed: 1941-07-16
Abstract: 555,826. Lubricants for ammunition. REMING- TON ARMS CO., Inc., SCHILLING, A. A., and CURRAN, T. B. July 16, 1941, No. 8975. [Class 91] Ammunition components viz. projectiles, bullets, shotgun pellets, wads, and cartridge cases whether of metal or paper are coated with a solid lubricant containing not less than 5 per cent of refined micro-crystalline petrolatum wax, having a melting point between 120‹F and 180‹F obtained from the heavy oil lubricating fraction which lies above 'the paraffin wax fraction or light lubricating oil distillates off petroleum. Ceresin from ozokerite is excluded from the scope of this invention. The lubricant may contain as lower melting point ingredients one or more of the substances paraffin scale, paraffin wax, petrolatum, ozokerite, oleostearine, and mixtures off solid fatty alcohols containing at least 14 carbon atoms in the molecule. According to examples the lubricant may consist of (1) 45 per cent petrolatum wax and 55 per cent paraffin scale: (2) 20 per cent. petrolatum wax, 20 per cent. petrolatum, and 60 per cent. paraffin wax ; (3) 24 per cent petrolatum wax, 35 per cent high melting petrolatum, 26 per cent. ozokerite, and 25 per cent oleostearine. The composition is not tacky to the touch, does' not collect particles of dust or grit or foreign matter. and maintains a high accuracy test when used with .22 calibre rifle ammunition.
Patent GB-576436-A (GB)
Title: Improvements in or relating to centre indicators for machine tools
IPC: B23Q15/22
Filed: 1944-05-11
Abstract: 576,436. Centring work. BARBER, A. May 11, 1944, No. 9006. [Class 83 (iii)] A centre indicator for machine tools comprises a housing 2 forming the socket portion of a ball joint and having a centre element 1 for location in the centre mark in the work and a disc or similarly shaped member 4 to give visual indication of any oscillation of the member 1 and a stem 6 adapted to be mounted in the machine and having a ball 5 situated within the socket in the housing 2. If the work is not accurately centred, then rotation of either the stem 6 or the work will cause the point of the member 1 to move in a circle and thus oscillate the disc 4. The stem may be resiliently mounted in a carrier 9 for insertion in the tool holder of the machine. For greater accuracy, small movements of the disc 4 may be made visible by an indicator 14 having a needle control element 15 in contact with the disc.
Patent GB-855457-A (GB)
Title: Improvements in and relating to means for mounting an article in an aperture in a support
Inventor: HEATH CLARENCE WILLANS
IPC: F16F1/42
Filed: 1958-03-20
Abstract: 855,457. Lamp holders. CARR FASTENER CO. Ltd. March 9, 1959 [March 20, 1958], No. 9025/58. Class 38 (1) [Also in Group XXXII] A lamp holder 10 is supported in a resilient mounting comprising a cylindrical sleeve 1 of resilient synthetic plastic material mounted in an aperture comprising a pair of plate-like members 2, 3. The flange 7 is formed by a heated punch after the sleeve 1 is inserted in the apertures. Internal ribs grip the lamp holder.
Patent GB-1464831-A (GB)
Title: Thermal printing head
IPC: B41J2/345
Filed: 1975-03-05
Abstract: 1464831 Selective printing EACIT AB 5 March 1975 9143/75 Heading B6F A thermal printing head has varistor heating elements. The varistor may be silicon carbide or silicon carbide mixed with an ohmic resistive material. Such elements can be located on a substrate by screen printing with a paste, comprising silicon carbide and the ohmic material, and heat treating the deposited paste.
Patent GB-303840-A (GB)
Title: Improvements in or relating to the making of paved roads and the like
IPC: E01C5/00
Filed: 1929-01-10
Abstract: 303,840. Aebli & Co., H. Jan. 10, 1928, [Convention date]. Block paving.-Paving setts care laid on a layer of sand b placed on the foundation a, the joints being served with cold asphalt and the whole rolled to cause the asphalt to combine with the sand and cement the setts together. The asphalt preferably contains bitumen in colloidal form.
Patent GB-994227-A (GB)
Title: Improvements in or relating to flight training apparatus
Inventor: FLOWER MAURICE SHIRLEY
IPC: G09B9/30
Filed: 1963-03-08
Abstract: 994,227. Flight training apparatus. COMMUNICATIONS PATENTS Ltd. March 8, 1963, No. 9229/63, Headin B7W. Ground-based flight training apparatus includes apparatus for simulating visual effects corresponding to the simulated flight of an aircraft, which comprises a representation of the surface of this earth (or of a carrier flight deck and the surrounding sea), a television camera 63 for viewing the representation, a television receiver 64 responsive to electric video signals from the camera, and control means whereby the image provided by the receiver is oscured when the computed height of the aircraft is equal to or greater than the base of a simulated layer of cloud. As described, the three channels 47-49 of a colour television camera are connected through motor-driven potentiometers in a control unit 28 (Fig. 2, not shown), and terminals 50-52 to amplifiers 54-56, one for each channel of the receiver. Into each of these amplifiers 17 is also fed a signal providing a grey image, from a D.C. source connected to 26, through a potentiometer (23, 24, 25 according to the lighting conditions) and through a motor-driven potentiometer between terminals 27 and 53 in the control unit. The cloud base height is preset on a potentiometer 29 and signals corresponding to cloud base height and simulated aircraft height are fed through resistors 33, 33<1> respectively to an amplifier 32 which compares these signals, and when the cloud base height is greater, i.e. the aircraft is below the cloud, operates a relay 35 to close a switch 36. Relays in the control unit are energized by the closing of the switch 36 and operate the motors driving potentiometers to reduce the grey image to zero and brighten the image of the representation of the earth. A turbulence unit 42 may be operated near the base of the cloud; this emits signals at random which temporarily reverse the polarity of the current supplied to potentiometer driving motors and hence simulate patches of cloud when below the cloud layer, and gaps in the cloud when the aircraft is in the cloud layer. The television image may be changed from obscured to unobscured, or vice-versa, by closing a switch 43 which allows a capacitor 44 to discharge through a relay in the control unit to reverse the polarity of the current to the potentiometer driving motors. When the camera reaches the limit of its travel one of the switches 38, 39 is opened to de-energize the relay operated by the switch 36, and the television image is obscured. The lighting conditions and the brightness of the grey image are varied according to the simulated time of day as selected by one of the switches 11-13.
Patent GB-558475-A (GB)
Title: Improvements in or relating to endless conveyors
IPC: A01D87/02
Filed: 1942-07-03
Abstract: 558,475. Hay loaders. HOSIER A. J. July 3, 1942, No. 9239. [Class 6 (iii)] [Also in Group XXX] A conveyer for picking up cut grass comprises a pair of chains 5 supported on sprockets 6, 7, 8, 9 and carrying transverse slats 4 in the form of U-shaped members with serrated edges forming blunt teeth. The conveyer is mounted on a frame 1 carried by a pair of road wheels 2 which are geared to drive the conveyer through sprockets 6. The amount of slack in the reverse run of the conveyer is adjusted at 16 so that a length of about three feet of the conveyer is on the ground as at 4<SP>1</SP>; and the conveyer moves over the ground at a speed greater than the frame 1. The forward end of the frame 1 is supported on swivel wheels 20, the spindles 22 of which may be lowered so as to raise the conveyer off the ground. An adjustably pivoted deflector plate 26 guides the grass on to the conveyer, and guide plates 18, 19 are also provided. The machine is hauled.by a pivoted towbar 28 and tows behind it a trailer (not shown) for receiving the cut grass.
Patent GB-540121-A (GB)
Title: Improvements in or relating to thermally operated electric switches
IPC: H05B41/06
Filed: 1940-05-25
Abstract: 540,121. Starting discharge lamps. FERRANTI, Ltd., CHILCOT, A. L., MILLER, J. L., and ATKINSON, L. May 25, 1940, No. 9240. [Class 38 (iv)] [Also in Group XXXVII] In a thermal switch suitable for use in a discharge lamp circuit as described in Specification 537,573, a bimetal strip 1, when heated, bends so as to bring a contract 3 into engagement with a contact 6 on a spring strip 4, further movement causing a contact 7 on the spring strip 4 to move away from a fixed contact 8. The strips 1, 4 are mounted on rods 2, 5 supported by a glass stem sealed into an evacuated envelope. A carbonized nickel sheet 10 surrounds the member 4 on three sides and is attached to a nicked strip welded to the fixed end of the bimetal strip 1 and serves to cool the bimetal strip rapidly. The bimetal strip may be heated by the radiation from the discharge lamp.
Patent GB-766867-A (GB)
Title: Improvements in or relating to electric control systems embodying transistors
IPC: H03K17/60
Filed: 1955-03-30
Abstract: 766,867. Switching systems for consumption apparatus. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. March 30, 1955 [April 5, 1954], No. 9249/55. Class 38 (4). An A.C. load 413, such as a motor, or a bank of lamps or heating resistors, is switched by a symmetrical junction transistor 415 interconnecting the load and supply source 407, the transistor being either conductive or non- conductive according as to whether positive or negative bias voltage between the base electrode 421 and end electrodes 417, 419 is selected by a control switch 457. As shown, positive bias voltage is provided by rectifiers 435, 449 energized from transformer windings 439, 443, whilst negative bias voltage is obtained over oppositely rectifiers 423, 433 and associated windings 427, 429. In modified arrangements, batteries replace the transformer windings and control is by a simple " on-off " switch.
Patent GB-1032285-A (GB)
Title: Improvements in or relating to teleprinter machines
Inventor: JAQUEMET ALBERT EDWARD
IPC: H04L13/06
Filed: 1963-03-08
Abstract: 1,032,285. Typewriters etc.; feeding webs. INTERNATIONAL AERADIO Ltd. May 27, 1964 [March 8, 1963], No. 9262/63. Headings B6B and B6F. In a teleprinter or like machine having an axially movable paper carriage and an axiallyfixed spool 3 upon which paper leaving the carriage is wound, the means guiding the paper to the spool 3 includes two members 5, 8, the member 5 being capable of rocking or tilting to allow of lateral movement of the web as the carriage moves. The member 8 comprises a sleeve slidable axially on a rod 70. The ends of the rod member 5 are mounted in pivoted brackets 7, being pressed downwardly by springs 6 which permit tilting of the rod 5. From the sleeve 8 to the spool 3 the paper passes over a fixed rod 11, a rod 12 carried by fixed arms 13 and a rod 14 carried by arms 15 pivoted about the axis of the spool. When paper is fed out of the machine, the arms 15 drop and through a cam 20, Fig. 2 (not shown), actuate a microswitch 22 to cause operation of a motor 18 driving the spool. As the slack is taken up, the arms 15 rise and the microswitch 22 opens to cause the motor 18 to stop. If the paper breaks or becomes exhausted, the arms 15 drop to a position which operates a second microswitch 21 to stop the motor. In a modification, Figs. 3, 4 (not shown), the paper passes over a fixed rod 31 between the rod 5 and the sleeve 8, and the ends of the rod 10 carrying the sleeve 8 are supported by springs 30 to permit tilting. To lessen friction, the rods 5, 10 and sleeve 8 are covered with poly-tetra-fluoroethylene.
Patent GB-394453-A (GB)
Title: Improvements in and relating to combined fire-preventing and air-filtering means forcarburettors
IPC: F02M1/00
Filed: 1932-03-31
Abstract: 394,453. Spray carburetters. SCHAFFNER, F. W., 409, Himrod Street, Brooklyn, New York, U.S.A. March 31, 1932, No. 9320. [Class 7 (iii).] A device adapted to be fitted to the air intake of a carburetter to prevent emission of flame and to cleanse the air supply, comprises an L-shaped tube, the horizontal portion 9 of which is connected by a split collar 11, lugs 12 and bolt 13 to the air intake neck 4. The portion 9 is bulged at the air intake end and is tapered towards the vertical portion 8, thus permitting at first an expansion of the flame and afterwards a smothering action thereon. The vertical portion 8 extends parallel with the auxiliary air intake tube 5 and both terminate at the same level. To prevent emission of any remaining flame, and to exclude foreign matter from the air, the upper ends of the tubes 5, 8 register with ports 19, 20 in a frame 17 secured by bolts 23 to a parallel frame 16, the space between the frames and the opening in the upper frame being covered by layers of foraminous material 24, 25. The vertical portion 8 is provided with a manually actuated valve 14, and auxiliary air is admitted by a valve 6, Fig. 2. Specification 387,039 is referred to.
Patent GB-1505492-A (GB)
Title: Ice confection
IPC: A23G9/32
Filed: 1974-03-01
Abstract: 1505492 Ice confection UNILEVER Ltd 28 Feb 1975 [1 March 1974] 9396/74 Heading A2B  An ice confection has air passages, which preferably extend throughout the confection and are open at the surface. Suitably the confection is ice cream which is extruded by the process of Specification 1505491 having the air passages in the extrusion direction. In a modification the passages may be filled with a different edible material, e.g. a sauce or liquor, chocolate, honey or a different ice confection.
Patent GB-453899-A (GB)
Title: Improvements relating to the inflation of pneumatic tyres
IPC: B60S5/04
Filed: 1935-03-26
Abstract: 453,899. Manually-operated valves. TURNER, W., Eyre Works, Sheffield. March 26, 1935, No. 9402. [Class 135] In a device for supplying pneumatic tyres and other articles with compressed fluid having a pushrod H the depression of which moves a valve J to close a duct F leading from a valve chamber E to a pressure gauge and thereafter opens a spring-pressed valve C to place a duct A<1> leading to a source of compressed fluid and duct D leading to a receiver in communication, a separate sealing device I is provided to prevent leakage over the push rod when the duct F is closed. The passage to the pressure gauge is thus maintained closed to the atmosphere so that no time is lost in re-filling this passage when a second test is to be made, especially when the gauge is at a remote point. As shown, the valve J and the sealing device I are in the form of cup leathers. The latter may however be a gland leather through which the push rod slides. The gland leather is clamped by a cap. The push rod is pressed upwardly by a spring K bearing on a cap G. Specification 347,172 is referred to in the Provisional Specification.
Patent GB-513003-A (GB)
Title: Improvements in or relating to methods of and apparatus for use in the formation of ornamental cut-outs in boot or shoe uppers
IPC: C14B5/00
Filed: 1938-03-29
Abstract: 513,003. Ornamenting shoe uppers. BRITISH UNITED SHOE MACHINERY CO., Ltd. (United Shoe Machinery Corporation). March 29, 1933, No. 9532. [Class 17 (ii)] [Also in Group VIII] In forming ornamental openings in shoe upper parts, the openings are cut out except at parts 32 by dies and these parts are completely removed after lasting by means of a hand knife. The upper material may be cut out completely by the die, leaving the lining material attached or both the upper and lining material may be incompletely severed.