baber/WOPTO huggingface dataset:
Patent GB-774636-A (GB)
Title: Improvements in or relating to optical projection apparatus
IPC: G03B23/14
Filed: 1955-06-30
Abstract: 774,636. Optical-projection apparatus. LEITZ, GES., E. June 30, 1955 [July 8, 1954, Jan. 15, 1955], No. 18960/55. Class 97(1) A device for holding, for projection, a transparency of the type mounted in a frame without cover glasses comprises at least one transparent pressure plate having a portion which enters the frame aperture to bear on the transparency. Pressure plates may be provided on one or both sides of the transparency. The entry portion on one pressure plate may be shaped to correct optically for any deformation of the transparency which is produced. Where the two images of a stereoscopic pair are separated by a frame portion separate entry portions may bear on them. Where they are not separated a single entry portion may carry a mask with a dividing portion. The entry portion may be plane, to contact the whole transparency area, and may be integral with or secured to the pressure plate. Alternatively the pressure plate may be cylindrically or spherically curved, the convex portion contacting the transparency in a line or a point. As shown, a transparency 5 in a frame 6 is clamped between spherical glass members 11, 11a in frames 10, 10a, the latter hinged at 12 and urged by a spring 13. Two such clamping systems are mounted on a frame 4 slidable in a frame 4a to bring the desired transparency to the projecting position where additional pressure between the frames is provided by a spring 14. Apertures 22 allow for circulation of cooling air. Alternatively the clamping frames may be fixed in the projecting position, the slide 4 carrying the transparencies only. The frames are then spring urged apart and are brought together by a spring blade on the slide 4 when this has been moved to bring a transparency between them. The frame 4a may be rotatable about the optical axis to accommodate transparencies of horizontal and vertical formats. Alternatively the individual clamping frames may be rotatable on the slide or. different frames for different formats may be provided. The changing device may be rotatable insteady of sliding.
Patent GB-440361-A (GB)
Title: Improvements in or relating to radio direction finding installations
IPC: G01S1/02
Filed: 1934-06-27
Abstract: 440,361. Directive wireless signalling. MARCONI'S WIRELESS TELEGRAPH CO. Ltd., Electra House, Victoria Embankment London, and SMITH, S. B., 1, Braemar Avenue, Chelmsford.. June 27, 1934, No. 19062. [Class 40 (v)] The same aerial system is used both for directive reception and as a non-directive trans 'mitter. In order to prevent " re-radiation ' errors, the central mast 1 which serves for transmission is associated with symmetrically arranged receiving aerials 10 ... 13, Figs.. 1 and 2, which are preferably of the Adcock type. As shown in Fig. 1, the central mast is mounted on an insulator MS on the roof of a hut 7 containing the transmitting and receiving gear; or as shown in plan in Fig. 2 the hut 7 may be disposed to one side and connected to the aerial system by buried or screened leads 20 ... 24, 19. The upper parts of the stay-wires 14, 16 &c. may form part of the main radiating system. The mast 1 is fitted with vertical copper wires running along each of its four corners, and it may be brought into action during reception in order to remove the usual 180‹ ambiguity. The top of the insulating base is fitted with a metal plate connected to buried earth-wires. Specifications 130,490, [Class 40 (v)], 354,322, and 359,562 are referred to.
Patent GB-112278-A (GB)
Title: Improvements in Differential Gears.
Inventor: WOODWARD IRVING CHARLES
IPC: F16H48/20
Filed: 1917-12-24
Abstract: 112,278. Woodward, I. C. Dec. 22, 1916, [Convention date]. Differential or balance gearing. - In epicyclic differential gearing for use on motor-vehicles, the master-wheel 6, driving the planet-casing 10, carries a toothed wheel 15 driving a wheel 16 on a spindle 17, which carries wheels 19, 20, driving- wheels 21, 22, loose on one of the driven shafts 3, at speeds, faster and slower respectively, than that of the wheel 6. Oppositely acting one-way clutches in the wheels 21, 22 prevent the shaft 3 from speeding-up or slowing-down beyond the limits provided by the speeds of the wheels 21, 22, so preventing excessive speed of the driven shafts 3 and 4.
Patent GB-666096-A (GB)
Title: A rotary printing machine
IPC: B41F17/00
Filed: 1949-07-20
Abstract: 666,096. Printing - machines. CHAMBON, Ltd. July 20, 1949 [July 20, 1948], No. 19124/49. Class 100 (ii). Rotary machines. -In a rotary printing couple the printing order of N formes, arranged at intervals of P/K cm. around the printing cylinder circumference, is the order of the formes located every P cm., K being a whole number other than 1 and having no factor common to N; to accomplish this the impression cylinder has projections at intervals of P cm. so as to avoid impressions out of order from formes opposite the intervening recesses. As shown prints are taken, by the six projections 11 on the impression cylinder 1, from every third one of the twentynine printing formes 21 on the printing cylinder 2, a complete cycle being.three revolutions of the cylinder 2, and 4<SP>5</SP>/ 6  revolutions of the cylinder 1.
Patent GB-1475962-A (GB)
Title: Binary data manipulation network
IPC: G06F9/305
Filed: 1975-05-07
Abstract: 1475962 Data manipulation networks CONTROL DATA CORP 7 May 1975 [3 June 1974] 19214/75 Heading G4A An output operand is generated by a merge network 10 which performs an operation, specified by control inputs C10-C13, on an operand B, a plurality of mask patterns 14, 16 and a selectively shifted operand A. Operations.-(1) Right circular shift of oper- and A. A count operand M is transferred from an input register 64 via an adder 52 and selection network 42 to a register 28 for controlling the amount of shift (M places) applied to oper- and A. Control input C13 of merge network 10 is high to pass the shifted A operand on bus 20 directly through gates 106, 100, Fig. 2, to the output. (2) Right shift of A with sign extension. The count operand M is gated by control input CO6 through selection network 44 to mask network 14 which produces a mask pattern having M 1's starting from the left. This pattern on bus 22 masks off the corresponding bits of the shifted A operand at gates 106 and replaces them by copied sign bits supplied on control input C11. (3) Left shift of A by M places circular. This operation is similar to (1), but with control inputs CO1 and CO4 high, the complement of M is formed by an adder 59 to control the shift network 12. (4) Left shift of A by M places with zero extension. This operation is similar to (2) but zero's are forced into the emptied right hand positions. (5) Insert the M right-hand bits of A into B starting at position N. Control input C14 is high so that (M+N) is formed by adder 42 and, CO3 also being high, shift network 12 performs a right circular shift of A by (M+N) places. The sum (M+N) is also applied to mask network 14 and (64-N), generated by adder 59 is applied to mask network 16. The outputs of networks 14, 16 are reversed end for end so that the M overlapping 1 bits of the two mask patterns are detected by gates 114 of the merge network and pass the corresponding bits of the shifted A operand i.e. the M right hand bits of the original operand through gates 104 to the output. Gates 118 are enabled for the non- overlapping 1 bits of the mask patterns to pass the corresponding bits of the B operand through gates 108 to the output. (6) Extract M bits from A, starting at position N and right justify them. This operation is similar to (5); A is left shifted (M + N) places in network 12 and M is applied to mask network 16, operand B having been initially set to zero. The presence of holding registers 28, 30, 32 and 36, 64, 66 allow pipe-lining of operations or successive pairs of operands A, B and corresponding count operands M, N; holding registers for A and B to enable simultaneous application of all four operands may be provided.
Patent GB-314433-A (GB)
Title: Improved radiator for automobiles and aeroplanes
IPC: F28D1/047
Filed: 1929-06-24
Abstract: 314,433. Soc. Anon. des Anciens Etrablissements Liotard FrÞres. June 27, 1928, [Convention date]. Void [Published under Sect 91 of the Acts]. Coil-tube apparatus.-A cooling-water radiator for motor vehicle and aeroplane engines comprises collectors C, C<1>, Fig. 3, connected by a valved-pipe T and air-cooled elements each comprising a central tube D, Fig. 2, having compartments connected in series by spiral metal tubes O of flat or elliptical cross-section. Fig. 5 shows a modified form of element particularly suitable for aeroplane engines. In another arrangement, the elements each consist of a central partitioned tube connected at its end by a coiled pipe formed by joining the tubes 0 in series.
Patent GB-437393-A (GB)
Title: Improvements in or relating to atmospheric gas burners
IPC: F23D14/30
Filed: 1934-07-02
Abstract: 437,393. Atmospheric gas burners; shade galleries. GAS LIGHT & COKE CO., MINCHIN, L. T., and HOLLOWAY, D. M., 84, Horseferry Road, Westminster. July 2, 1934, No. 19404. [Classes 75 (i) and 75 (ii)] A burner nozzle 11 is provided at the outlet with an inner tube 15 and spacing fins 16, the length of the tube 15 being at least one and a half times, preferably twice, the internal diameter of the nozzle thereby minimizing the noise made by the burner in operation. An example of the dimensions of a nozzle is given. In the inverted burner shown, the nozzle is secured with the deflector 26 of a shade gallery 25 by an intermediate screwed bush 28 to a mixing-tube 17. The air inlets 19 are surrounded by a silencing hood 20 supported freely by an asbestos &c. washor 24 on a shoulder 23. The injector comprises an upper part 34, formed with a conical dusttrap 33, and a lower cup-shaped part 29 having a converging outlet 30. The Provisional Specification states also that the hood 20 is clamped in position by a shoulder on the injector.
Patent GB-809356-A (GB)
Title: Sand conditioning apparatus
IPC: B22C5/04
Filed: 1957-06-20
Abstract: 809,356. Roller-and-ring mills. BUTZOW, G. M. June 20, 1957 [March 14, 1957], No. 19424/57. Class 59 [Also in Group XXX] Sand conditioning apparatus having a cylindrical conveyer rotatable about a horizontal axis and within which conveyer the sand is conveyed, a mulling wheel within the conveyer and rotatable about a horizontal axis, the mulling wheel pressing the sand against the conveyer, and a fluffing wheel within the conveyer and rotatable about a horizontal axis, all three axes being parallel, wherein the fluffing wheel has a plurality of elements extending outwardly from its hub with at least the outer ends of the elements laterally spaced apart such that the elements cut through and separate the mass of sand laterally as well as in the direction of rotation of the fluffing wheel. As shown, the apparatus comprises a rotatable cylindrical conveyer or mull ring 36 mounted on a stationary support 10 and having co-operable therewith mulling and aerating wheels 84, 150 respectively. The mull ring is supported on an axle 34 and comprises a disc-shaped plate 38, Fig. 4, a rim 40, whidh may be lined with rubber, and an annular flange 42. The mulling wheel, which is preferably provided with a rubber tyre, is rotatably mounted on an axle supported by a spring-loaded pivotally-mounted rocker arm 88. The aerating wheel is rotatably mounted on a shaft 148 at one end of a carriage 128 the other end of which is supported by spring-loaded pivotally-mounted members 108. The carriage 128 has connected thereto one end of a cable 134 the other end of which is connected to a shaft 136 which carries a handle 140 and a ratchet wheel 142, Fig. 8, with which is engageable a pivotally-mounted pawl 144. The shaft 136 also carries an arm 137 to whiah is connected one end of a cable 139 the other end of which is connected to an arm 141 secured to the upper end of the rocker arm 88. The positions of the mulling and aerating wheels may thereby be adjusted by manipulating the handle 140. The support 10 has also mounted thereon a plow-like deflector 82, Fig. 7, and a deflector plate 78. The aerating wheel may comprise a plurality of reticulated metal discs or a multiplicity of radially-extending metallic wires or bristles. The mull ring and aerating wheel are rotatable from an electric motor 132 by means of belts and pulleys. Sand is fed to the rim of the mull ring by means of a hopper 104. The conditioned sand is discharged by means of the plow 82 and an assembly 46 secured to the support 10 end comprising an inclined plate 54, Fig. 6, to which are hinged upper and lower plates 62, 70 connected together by a cord 72, the arrangement being such that the assembly is swung to the full line position, Fig. 6, during discharge and is swung to the dotted line position 74, 76 during the sand conditioning operation.
Patent GB-302705-A (GB)
Title: Improvements in or relating to pipe couplings and analogous unions
IPC: F16L37/113
Filed: 1927-07-21
Abstract: 302,705. Brown, H. B. July 21, 1927. Butt joints; spigot-and-socket and like overlap joints with packing compressed at mouth of socket; bayonet joints.-In a hose &c. coupling of the kind described in Specification 191,095, accidental uncoupling is prevented by forming the tubing l, on which the jointing washer k is mounted, and the recesses m, n on the coupling members a, b, which receive said tubing, of hexagonal or like cross-section.
Patent GB-445341-A (GB)
Title: Improvements in base for artificial denture
IPC: A61K6/083
Filed: 1934-07-02
Abstract: A base or saddle for artificial dentures comprises a rubber derivative prepared by treating rubber with a halogen containing compound of an amphoteric metal.  The halogen compound may be either a chloride of the metal, in which case a hydrocarbon product with the empirical formula (C5H8)x results, or it may be chlorostannic acid, in which case the rubber derivative formed contains chlorine. Fillers and colouring matters may also be incorporated into the composition.  The experimental procedure necessary to produce the chlorostannic acid derivative is described in detail in an example. Metal chlorides mentioned which may be used to react with the rubber are stannic chloride, aluminium chloride, or chromic chloride.ALSO:A base or saddle for artificial dentures comprises a rubber derivative prepared by treating rubber with a halogen containing compound of an amphoteric metal.  Fillers and colouring matters may also be incorporated in the composition.
Patent GB-1292774-A (GB)
Title: Purification of tetranisole
IPC: C07D513/04
Filed: 1971-06-08
Abstract: 1292774 6-Phenyl-2,3,5,6-tetrahydroimidazo- [2,1-b]thiazole ICI AUSTRALIA Ltd 8 June 1971 [2 July 1970] 19483/71 Heading C2C The title compound (I) is purified by adding to an aqueous solution of its salt (e.g. with HCl) an amount of a water-soluble salt of phthalic acid sufficient to precipitate at least part of the trans-2-imino- 3-styrylthiazolidine (II) present as impurity, removing the precipitate and recovering I. The process may be preceded by a preliminary purification, comprising adding an amount of C 12 H 25 C 6 H 4 SO 3 Na sufficient to precipitate at least part of the impurities present (including II and other compounds), and removing the precipitate. L-I may be obtained from purified DL-I by use of N-p-toluenesulphonyl-L( + )-glutamic acid.
Patent GB-569580-A (GB)
Title: Improvements in screw expeller presses
IPC: B30B9/26
Filed: 1943-11-23
Abstract: 569,580. Extrusion presses. ROSE, DOWNS, & THOMPSON, Ltd., and DOWNS, L. H. Nov. 23, 1943, No. 19533. [Class 46] A cage enclosing the worm.(not shown) of an extrusion press is built up of longitudinal bars 11 each formed on a side 11d with a rib 11e adapted to abut against the side 11b of an adjacent bar. The rib 11e is formed with grooves 11f, each of which is inclined at an angle other than a right-angle to the edges of the rib. The depths of the grooves may increase in the direction away from the centre of the cage. The bars 11 are held together by means of key-bars 13 and shoe-bars 14. The worm is of reducing pitch.
Patent GB-613752-A (GB)
Title: Improvements in or relating to sailing boats
IPC: B63H9/08
Filed: 1946-07-01
Abstract: 613,752. Sailing boats. FAIREY AVIATION CO., Ltd., and VINES, A. July 1, 1946, No. 19605. [Class 115] A sailing boat has a mast made in two parts, an upper part 15 of hollow streamlined section, the after side of which is shaped to form a sail guide 31, and a lower part 17 which can be adjusted for height by a screw 23 and then locked in position by a pin 25 engaging holes 26. The two parts of the mast engage each other by a spherical seating 22a. The mainsail is raised by a winch 38 from which passes an endless cable to the sheaves 28, 29 at the mast - head. The foresail 14 is raised by the winch 58 and an endless cable 59 passing round the pulley 63.
Patent GB-770545-A (GB)
Title: Improvements relating to coil winding machines
IPC: B65H81/02
Filed: 1954-07-06
Abstract: 770,545. Winding toroidal coils. HOWE, H. June 30, 1955 [July 6, 1954], No. 19726/54. Class 83 (4). A machine for winding wire on annular cores comprises a winding element adapted to be rotated around the core in a plane at right angles to that of the core, and a shuttle mounted rotatably on the winding element for holding a supply of wire which is wound on to the shuttle during the initial part of the coil winding operation and is withdrawn from the interior of the shuttle for winding on to the core. A magnet core 9 to be wound is supported and rotated by adjustable vertical flanged rollers 10, 10a, 11, the rollers 10, 10a being rotated by a motor 8 through a variablespeed friction drive 17, 18 and cross-shaft 14 and the roller 11 being urged by a spring 25 to press the core against the rollers 10, 10a. A winding ring 1, supported by guide pulleys 2 and rotated through the core by a belt 6, carries rollers 33 spaced around it which support a shuttle comprising two spaced ring elements 34, 35, which together have a V-sectioned peripheral. groove for the wire. To wind the core 9, the free end of wire from a supply 37 is passed around the shuttle 34, 35, on the rollers 33, then through the space 36 between the elements 34, 35, over a roller 33, and over a tension device 40, comprising two spring-urged cupped washers 61, Fig. 3, to the core 9 to which it is anchored. The core and the winding ring 1 are then rotated and wire is drawn from the interior of the shuttle 34, 35 through the space 36 to wind on the core, while wire from the supply 37 is wound on to the shuttle. After sufficient wire has been wound on the shuttle the supply is cut and the end anchored at 41 to the shuttle element 35. The winding of the core then continues. To insert or remove the core 9 in or from the machine a pulley 2 is moved up a slot 53 to slacken the belt 6, a sector 65 is unlocked from the ring 1 and removed and sectors 66, 67 are removed from the shuttle elements 35, 34.
Patent GB-363970-A (GB)
Title: Improvements in and relating to multi-roll rolling mechanisms
IPC: B21B13/14
Filed: 1931-07-09
Abstract: 363,970. Rolling. HERAEUSVACUUMSCHMELZE AKT.-GES. and ROHN, W., 8, Dammstrasse, both in Fanauon-Main, Germany. July 9, 1931, No. 19769. Convention date, July 29, 1930. [Class 83 (iv).] A rolling mill comprises a pair of small hard metal working rolls A backed by support rollers B which in turn are backed by further support rollers E and so on if required. The rolls may be driven from a shaft K from one end only through couplings G as in Fig. 3, and the rollers B may then be centreless or the roll A may be centreless and the support rollers driven. The support rollers may consist of shells N mounted on roller bearings O on a fixed shaft M, Fig. 4. Pipes for cooling fluid may be fitted in the undriven end of the roll A or in both ends. The ratio of the diameters of each set of outer rollers to an inner set does not exceed 2À5 : 1. Work to be centred into the mill may require previous end thinning or pointing in gap rolls.
Patent GB-1101748-A (GB)
Title: Thermionic generator
Inventor: GABOR DENNIS
IPC: H01J45/00
Filed: 1964-05-12
Abstract: 1,101,748. Thermionic generators. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 12 May, 1965 [12 May, 1964], No. 19806/64. Heading HID. A controllable thermionic generator includes a plurality of auxiliary anodes located within, or at the boundary of, the emitter-collector discharge space, the total area of the auxiliary anodes being less than one-thousandth of the area of the emitter. The anodes are preferably energized with positive pulses, e.g. of 1-5 microsecond duration at a 5 to 10 Kc./s. repetition rate, such that they operate under transient rather than steady state conditions, whereby an improved ratio of collector to auxiliary current may be obtained. The anodes number 1 to 4 per cm.<SP>2</SP> of emitter surface, and preferably have resistors in series to ensure a distribution of the auxiliary discharge over the whole plurality. To prepare an anode assembly a right-angle section metal strip is coated first with insulant-alumina or enamelexcept in regions 8, Fig. 5c, and then over the interior of the angle, with a resistive layer of nickel/chromium alloy 9. Tungsten, molybdenum, or tantalum wires 3, welded to a metal tape 10, are then introduced into the angle, which is closed to clamp them, Fig. 5g, whereafter the tape is cut off and the wires cut to length, and the assembly, except for the wires, resprayed with insulant. The wires 3 are located mid-way between successive conductive portions 8, whereby the lead to each wire is constituted by the angled strip, and two sections of the resistive layer 9 in parallel. If resistors in series with the anodes are not required, tape 10 itself may be clamped within the angled strip, to form the lead for the wires which project outwardly therefrom. A plurality of such linear assemblies may be seated in parallel grooves formed in the collector surface (Fig. 7, not shown), to form an array of wires both projecting and insulated from the collector surface, the assemblies being connected to a common tantalum lead which is insulated with a ceramic cement, or by anodizing. Alternatively, the resistive layer may be applied to only one of the inner faces of the insulantcovered metal strip, the anodes being constituted by patches of refractory metal or by metal plates 13, Fig. 6, exposed beneath perforations 12 formed in the other face of the strip; the completed assembly can be held flat on the collector surface by metal strips welded across it, and may be wound as a helix (Fig. 8, not shown) on the outer surface of a tubular, coolant-carrying collector. In a further arrangement (Figs. 1 and 2, not shown); the wires constituting the anodes pass through enamel beads in the envelope, which forms the collector electrode and is immersed in coolant; the wires may be either ground flush with the collector surface, or project therefrom, and have their ends sharpened by electrolytic etching. The tube contains argon, krypton, or xenon, and possibly a metal vapour, at a pressure of 0À1 to 5 torr, and the emittercollector spacing is about 2 mm.