baber/WOPTO huggingface dataset:
Patent GB-564708-A (GB)
Title: Improved process and apparatus for treating liquid
IPC: C02F1/52
Filed: 1943-04-03
Abstract: 564,708. Treating liquids. PATERSON, SIR W. April 3, 1943, No. 5373. [Class 46] In the treatment of liquid with reagent to remove undesired materials, the liquid with reagent is passed horizontally through a mixing and agitating chamber in such manner that all of the liquid is subjected to a showering therethrough by power-driven agitators of sediment arising from previous treatment with the reagent, or other catalytic nuclei. As shown, the treatment is effected in a tank a to which the liquid is supplied through a ring conduit o<1> with reagent entering at an inlet n. The liquid is circulated by an impeller i, at three or four times the rate of entry of new liquid, through a mixing and agitating chamber b formed below a sloping roof d. Paddles e effect the showering of the sediment through the liquid thereby to precipitate the impurities on to the nuclei. The heavier particles are moved by the paddles towards a well p for ultimate removal. The liquid passes upwardly from the mixing and agitating chamber through baffles k<1> for suppressing eddies to a clarification space c whence the clear liquid passes away over a weir trough m. Specification 10719/02, [Class 46], is referred to.
Patent GB-1152152-A (GB)
Title: Improvements in the Continuous Deposition of a String of Turns of Wire Upon an Endless Conveyor
IPC: B21C47/26
Filed: 1968-02-02
Abstract: 1,152,152. Coiling wire. SCHLOEMANN A.G. 2 Feb., 1968 [4 Feb., 1967], No. 5375/68. Heading B3E. A method of continuously depositing overlapping turns of wire on a horizontal conveyer, the turns being formed by a rotating turn-layer, is characterized in that as the turns fall from the turn-layer to the conveyer a lateral deflecting movement is imparted which is transverse to the line of fall and also to the direction of conveyance. An apparatus for carrying out the method comprises a rotating laying core 2 with a worm thread 3, the turns being guided by a tunnel T as they fall on to the conveyer 5. The bottom of the turns is checked by friction with a shoot plate 6. Part of each side of tunnel T is formed as a flap 7, 7a mounted on a vertical pivot 8, 8a. The flaps are connected by an adjustable-length rod 11a and oscillated about their pivots by a mechanical or pneumatic drive 11. As the flap 7 moves inwardly, the flap 7a moves outwardly into line with the tunnel wall and vice versa. In a modification the flaps are pivoted about horizontal axes, above and parallel to the upper surface of the conveyer. In a second modification the axis of the turn layer is inclined to the horizontal. In a third modification a vertical axis Edenborn type turn layer is used.
Patent GB-1454344-A (GB)
Title: Valve chests for air receivers or other containers for fluids  at pressures greater or less than atmospheric pressure
IPC: F16L41/00
Filed: 1974-02-06
Abstract: 1454344 Pipe couplings CTW PNEUMATICS Ltd 6 Feb 1974 05377/74 Heading F2G In a valve chest for a compressed air reservoir, including an apertured mounting flange 1, an inlet pipe 7 projects concentrically from the flange 1. Inlet and outlet valves 3, 4 may be bolted to the body of the valve chest. A pressure gauge 11 has an isolation cock 10. A pressure relief valve (9) and fusible plugs (14) and 16 are provided.
Patent GB-647469-A (GB)
Title: Improvements in or relating to automatic control apparatus for aircraft
IPC: G05D1/04
Filed: 1947-02-24
Abstract: 647,469. Automatic control systems for aircraft. SPERRY GYROSCOPE CO., Inc. Feb. 24, 1947, Nos. 5378 and 5379. Convention dates, Feb. 23, 1946, and Feb. 26, 1946. [Class 38 (iv)] In a craft control apparatus in which deviations from a given bank angle or heading produce signals which effect a correcting adjustment of the ailerons or rudder and in which during a banked turn the rate of change of heading is determined by a rate-of-turn control apparatus, the heading deviation signal controls the rudder and provides an auxiliary signal forming part of the rate-of-turn control quantity and acting in a sense to produce conformity between the turn rate and the bank angle. Alternatively, either the bank deviation signal may provide the auxiliary signal or the ailerons may be controlled to correspond to the set rate of turn. As shown, the direction gyro 11 controls the rudder servomotor 23 through the servo-amplifier 21 and generator 27, while the elevator and aileron motors 31, 24 are similarly controlled by the gyro-vertical 12. To affect a banked turn the knob 50 is turned to the degree of bank required and simultaneously the Selsyn 19 associated with the roll axis pick-off 18 is rotated and the ailerons positioned by the resultant signal from Ward- Leonard generator 28, while the output from signal generator 52, of amplitude and phasesense corresponding to the angle of bank causes the motor 44 to rotate one winding of Selsyn 17 at a speed corresponding to the correct rate of turn at the chosen bank angle, at normal cruising speed. A deviation of the craft rate of turn from the correct value effects a difference in the speeds of rotation of Selsyns 13, 17, with a consequent resultant output signal which is applied to the rudder which corrects the turn rate until Selsyns 13, 17 move synchronously. A further signal derived from the rudder correction signal is applied to the motor 44; a D.C. voltage proportional to the input to servomotor 23 is taken at tapping 35, integrated at 36 and converted to A.C. at the modulator 39, the output from which is applied in series with the output from 52 to the motor 44. The output of 39 is rendered a function of the bank angle by the application of an A.C. voltage to the modulator 36 through the transformer 64, of constant phase and amplitude proportional to the bank angle, which is produced from a ring modulator incorporating the rectifier bridge 62 fed from the signal generator 52. In the case of multi-engined aircraft the system may effect steering by adjustment of throttles and the system may be further adapted, either to derive the further signal voltage from the bankdeviation signal at 55 or to co-ordinate the turn by aileron adjustment by supplying the output of modulator 39 to aileron amplifier 26.
Patent GB-364401-A (GB)
Title: Improvements in or relating to the destructive hydrogenation of hydrocarbon oils
IPC: C10G47/00
Filed: 1931-02-20
Abstract: <PICT:0364401/III/1> High-boiling hydrocarbon oils are vaporized at a temperature below 900 DEG  F. and passed with hydrogen through a heat-insulated catalytic reaction zone maintained above 900 DEG  F. solely by the heat of reaction.  Oil is fed through a heating coil 3 into a lagged drum packed with catalytic material.  A second drum 8 may be used in series, in parallel, or alternately with the first. Hydrogen is admitted through the pipe 14, and if desired, by the pipes 15, 16.  The products pass by pipe 9 either directly to a condenser 20, or by pipe 22 into fractionating tower 23.  Gas is removed by a pipe 28, purified in a system 29 and pumped back to the hydrogen main 13.  In starting up, electric heaters may be used in the drums until the heat evolved by the reaction is sufficient to maintain the temperature.
Patent GB-690006-A (GB)
Title: The manufacture of new vat dyestuffs of the anthraquinone series
IPC: C09B5/26
Filed: 1951-03-06
Abstract: The invention comprises vat dyes obtainable by heating with acid condensing agents the anthraquinonylaminoacediamthrones obtained by condensation of aminoanthraquinones and a a a a -tetrahalogenated acedianthrones according to Specification 410,552.  In examples, the product obtained by condensation of 1 mol. of a a a a -tetrachloracedianthrone (obtained from 1,8-dichloranthrone) with (1) 3 mols. of 1-amino-4- and/or 5-benzoylaminoanthraquinone, is heated in chlorsulphonic acid; and (2) 4 mols.  1-aminoanthraquinone, is treated with aluminium chloride-sulphur dioxide.  The products dye cotton or regenerated cellulose red-brown to olive-brown shades.
Patent GB-369724-A (GB)
Title: Improvements in machines for filling valved bags with powdered or granular material
IPC: B65B1/18
Filed: 1931-02-23
Abstract: 369,724. Automatic-feed weighers. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Bates International Bag Co. ; 60, East 42nd Street, New York, U.S.A.) Feb. 23, 1931, No. 5600. [Class 143.] A valve-bag filling machine comprises a device for continuously projecting a stream of granular &c. material through an orifice, and a weighing support for the bag including a spout adapted to be brought into receiving relationship with the orifice wherein means is provided for permitting the diversion of the stream of material in the spout when such stream is impeded. The granular &c. material on passing from a hopper 10 through a rotary valve 13 enters a shoot 23 at the foot of which rotates a paddle feeder 15, by which the material is ejected horizontally, the ejection being aided by air blasts 28, 29. It then enters a filling nozzle 20, which is shaped as an inverted channel, and thence fills into the bag 40. The shoot 23 is provided with a shroud member 24 which prevents the material flowing otherwise than laterally into the paddle feeder 15 and a cam-operated tappet 34 shakes a plate 32, pivoted at 31, to keep the material in motion. Clogging near the edge 30 is prevented by an air blast 99. The bag is partly suspended from the nozzle and partly by a cradle 50, pivoted at 81 and adjustably supported at 82. The frame 41 is suspended from the weighing scale beam 44 and is kept vertical when in movement by the connections 45, 46, 47. The bag on filling distends and tends to rise from the cradle 50 thereby putting undue strain on the mouth. To avoid this the system 52, 53, 54, 58 is provided where, by manual operation, the cradle is lifted, the notch 54 engaging the pivot 58 so that the weight of the bag is again mainly carried by the cradle. On the correct charge being entered the scale beam with the nozzle 20, and frame 41 moves downwardly, the nozzle being carried by the frame 41. The material issuing from the orifice 19 is then deflected by the shield 76 to a collecting bin. If during filling the material clogs the end of the nozzle within the bag the material emerging from the orifice 19 passes directly through the open bottom of the nozzle situate between the bag and the orifice direct to the collecting bin placed beneath the shield 76. As the frame descends a toggle system 65, 66 is moved to lock it in the downward position. At the same time the nose 63 of the member 65 bears on an extension of a gravity actuated pawl 56, of saddle shape in cross section, which has been holding the top of the bag in place, so that it is released to allow the bag to be removed. To put the weighing frame into action after a fresh bag has been inserted the handle 67 is moved manually to release the toggle and to clamp the bag by means of the pawl 56.
Patent GB-452436-A (GB)
Title: Manufacture of nitro-compounds and amino-compounds of substituted benzotrifluorides
IPC: C07C205/12
Filed: 1935-02-21
Abstract: m-Halogen-benzotrifluorides are nitrated to give compounds in which the nitro group is mainly in the ortho-position to the CF3 group. The products may be reduced to the corresponding amino compounds. According to the examples, m-chlorobenzotrifluoride, prepared by Sandmeyer's reaction upon m-aminobenzotrifluoride, is slowly added to a cooled mixture of nitric and sulphuric acids or to cold nitric acid itself; the product mainly comprises 6 - nitro - 3 - chloro - 1 - benzotrifluoride, which may then be reduced with iron and hydrochloric acid to the 6-amino body.  A similar nitrated product is obtained when m-fluoro benzotrifluoride, prepared by heating the dry borofluoride of diazotized m-aminobenzotrifluoride, is used as starting material.  British Specification 395,227 and French Specification 745,293 are referred to.  The Provisional Specification also describes the nitration of m-acylamino-benzotrifluorides and includes an example of the preparation of a mixture of 2-nitro-, 4-nitro- and 6-nitro-3-acetamino-1-benzotrifluorides by adding 3-acetamino-1-benzotrifluoride to nitric acid at -10 DEG  C., the products being separated by crystallization and steam distillation from alcohol; saponification of the acetamino compounds yields the corresponding amino bodies.  In discussing the constitution of the nitro products, the preparation of 2- and 4-nitro-1-benzotrifluoride, 2- and 4-amino-1-benzotrifluoride, and 6-nitro- and 6-amino-3-chloro-1-benzotrifluoride is referred to.
Patent GB-753032-A (GB)
Title: Improvements in sewing machines
IPC: F16F15/10
Filed: 1954-02-26
Abstract: 753,032. Torsional - vibration dampers. UNION SPECIAL MACHINE CO. Feb. 26, 1954 [Feb. 26, 1953], No. 5646/54. Class 108 (3). A dynamic damper for damping torsional vibrations in the shaft 27 of a sewing-machine, is embodied in a sprocket 30 driven by a toothed belt 43. An inertia mass 81 is mounted on the sprocket through the intermediary of a rubber bushing 84. The damper may be tuned to the critical frequency of the shaft 27 by rotating a knurled wheel 92 on a spindle 91. This results in the radial adjustment of weights 89, 90 which are in threaded engagement with the spindle 91 and are slidable in recesses on the face of the inertia mass 81. The spindle 91 is also adjustable by the engagement of screw-driver slots formed in each of its ends. A resilient plate 93 is bolted to the mass 81 and bears on the spindle 91 to maintain its setting. A similar damper (Fig. 6, not shown) is embodied in a driving pulley of the machine. This damper is mounted within a recess formed in one side face of the pulley and is provided with a removable cover-plate. Specifications 687,812, [Group VII], 743,637 and 753,033 are referred to.
Patent GB-293070-A (GB)
Title: Improvements in the manufacture of fencing, railings or gates
IPC: E04H17/14
Filed: 1927-03-01
Abstract: 293,070. Bettles, J. W. E. March 1, 1927. Openwork fencing; gates.-Railings, gates or fencing are constructed of the requisite numbers of sections of the form shown in the Figure. Each section comprises uprights or pillars 1, 2 and cross-pieces 5, 6 forming a frame which is filled in with a grid formed of strip metal. The strips of metal 9 are stamped to sinuous, undulating, or zigzag form and are arranged with their width transverse to the plane of the fence. Each two adjacent strips are assembled in reverse relationship and secured together as by rivets 10 or welding. Each strip has plane portions 13, such portions of adjacent strips abutting, and semicircular portions 17 may also be provided. Bent terminal portions such as 14 - - 16 are provided for securing the strips to the cross-pieces and uprights. The strips 9 may be arranged vertically as shown, or horizontally or obliquely, and flat strips may be interposed between each or any two sinuous strips. Spikes 8 may be provided on the cross-piece 5.
Patent GB-660480-A (GB)
Title: Improved tuning mechanism for radio apparatus
IPC: H03J7/30
Filed: 1949-03-02
Abstract: 660,480. Push-button tuning mechanism. GENERAL MOTORS CORPORATION. March 2, 1949 [March 31, 1948], No. 6680/49.' Class 40 (v). Push-button tuning mechanism for radio apparatus comprising also manual tuning means operating through an irreversible drive and a clutch, is arranged so that pressure on a pushbutton first resets a tuning cam, then clamps the cam, and thereafter releases the clutch prior to actuation of the tuner by the reset tuning cam. The tuning arrangement described is of the push-button and manual type disclosed in Specification 624,969 and comprises the pushbutton tuning arrangement of Specification 649,360 in which in order to pre-set the station to which a button 26 is to correspond the button is pulled outwards to release a cam 16 mounted freely on the button bar 8 and the set is then tuned manually by means of the knob 78 which through a clutch 58 turns a treadle arrangement 50, 52. This in turn causes a transverse bar 38 to slide in the plane of the paper and so adjust tuning coils 34. When the button 26 is pushed in again to the normal position shown the cam 16 is positioned by engagement with the treadle bars 50, 52 and locked in position. When such a pre-tuned button is pushed further inwards its cam turns the treadle assembly 50, 52 to a position determined by the cam setting. In the present Specification in order that the treadle may be free to move, the depressed button bar 6 engages a projection 28 on a bar 96 which rotates, causing an extension 102 to bear down on a roller 92. This in turn depresses a lever 90 to slide the clutch-plate 80 along the treadle shaft 54 so that the plate 80 is disengaged from its co-operating clutch-plate 82 which is rigid with the treadle shaft 54. The latter can thus rotate although a gear-wheel rigidly fixed to the clutch-plate 80 is locked by engagement with the manual tuning drive worm 72.
Patent GB-139488-A (GB)
Title: Method of recovering solvents
Filed: 1920-02-25
Abstract: 139,488. Lunt, G. P. April 7, 1916, [Convention date]. No Patent granted (Sealing fee not paid). Volatile liquids, recovering.-In removing solvent from nitrocellulose explosives, or other colloid substances such as india-rubber, the solvent is evaporated by means of a current of a gas, which will not form an explosive mixture with the solvent, circulated in a closed circuit, and the vapour of the solvent is removed from the gas by a spray of the solvent, or one of the constituents thereof, in a liquid form, or of a liquid in which the solvent is soluble. The colloid is placed on sliding shelves b in a chamber a heated by hot-water pipes r, s. Dampers m, n are provided for cutting the chamber out of the circuit while it is being re-charged, and an outlet o is provided with a damper p whereby air can be displaced when a heavy gas, such as carbon dioxide or sulphur dioxide, is used in the circuit. The gas is circulated by a pump k and passes through a condenser d, provided with jets e of the condensing liquid, and a baffle g for catching the spray. The condensing liquid may be cooled, and it is stated that by regulating the temperature and volume of the condensing liquids the amount and proportions of the different constituents of the solvent condensed can be regulated, so that evaporation takes place at a rate equal to that at which the solvent diffuses through the colloid, thus avoiding blistering.
Patent GB-351446-A (GB)
Title: Improvements in or relating to wave-signalling systems
IPC: H01J21/18
Filed: 1930-02-20
Abstract: 351,446. Thermionic valves and amplifying circuits. LODGE, SIR O. J., Normanton, Lake, Salisbury, Wiltshire, and ROBINSON, J., 29, George Street, Hanover Square, London. Feb. 20, 1930, No. 5745. [Classes 39 (i) and 40 (v).] In order to reduce distortion due to the persistence of oscillatory signal currents in a highly-selective receiver, energy is fed back from the output of a valve to a coil or to a current-carrying electrode which has the effect of deflecting the electronic or ionic stream within the valve. As shown in Fig. 1, the sharply-tuned receiver 10 is followed by the valves 11, 12 and a further amplifier 14. Energy is fed back inductively from the plate coil 16 of the valve 12 to a coil 18 which influences the electron stream in the valve 11 in such phase as to reduce the persistence of a signal impulse. The feed-back circuit may include a time-lag device. Several forms the valve 11 may take are shown in Figs. 3, 5, and 7. As shown in transverse section in Fig. 3, the valve has an axial cathode 20, and a slatted grid 21 and anode 22, the anode slats being radially opposite the gaps between the grid slats. The feed-back coil 23 is outside the anode. In another form of valve (Fig. 4, not shown) both grid and anode are of spiral form, the anode itself forming the current-carrying coil 18. In Fig. 5, the electron stream is given a strip-like form by an aperture 30 in a shield 31, and the anode 32 is of triangular form. The feed-back coils 33 deflect the beam from narrow to wider parts of the anode. Coils similar to 33 may be used as input or control elements. In a modification of Fig. 5 (Fig. 6, not shown) the stream is deflected in the direction of its width, and is so caused to miss the anode to a greater or less extent. The valve shown in Fig. 7 comprises an axial cathode and a spiral grid surrounded by a cage-like cylindrical structure 38 formed by wire bent into zig-zag form and connected between a side terminal 41 and an upper terminal 40. An outer spiral anode 39 is connected between 42, 43. Fig. 8 shows a circuit employing a valve 44 of this kind, the zig-zag anode 38 being part of a tuned oscillatory circuit 53, 54 which is connected through the coupling-coil 48 to the H.T. batterv 52. A later valve 46 in the cascade 44 . . 47 feeds back energy to the oscillatory circuit 53, 54. The spiral anode 39 is connected directly to the H.T. battery 52 ; or alternatively the anode 39 may form the output electrode, and the tuned circuit 53, 54 may be connected directly to the battery 52. The highly-selective receiver may be of the kind described in Specifications 223,625, [Class 40 (v), Wireless signalling &c.], and 344,869.
Patent GB-716344-A (GB)
Title: Improvements in a method and apparatus for the winning and loading of coal
IPC: E21C27/34
Filed: 1952-03-07
Abstract: 716,344. Coal planers. RITCHIE, C. March 7, 1952 [March 10, 1951; June 11, 1951], No. 5975/52. Class 68(1) A coal face is undercut by a device or devices H, the cutter edges of which peel coal either in a plane rising from the floor at an acute angle thereto or over a curved surface, arched preferably upwards, and the. dislodged coal is subsequently guided into a face conveyer as the device or devices are reciprocated by a suitable chain or cable haulage system. One double-ended embodiment that can operate over the whole transverse section of the undercut comprises a vertical back panel 16 sliding along guide means 11 on the conveyer and extending to twice the height of the conveyer, a bottom panel 13 sliding along the floor and of a width equal to two-thirds of that of the conveyer, and a curved or inclined front panel 15. On each end of said panel 15 are mounted cutters 14 so as to extend in curves from the lower outermost corners to the upper junction of the back panel 16 with the transverse vertical mid-section of the device, said section being wedge-shaped or approximately a quarter of an ellipse. Guide surfaces direct the detached coal into the face conveyer. In a modified form, those portions of the front panel supporting cutters lying above the height of the conveyer are extended so that the lowest cutter of the upper group is positioned at the same or a greater distance from the vertical transverse midsection of the device as the lowest cutter of the lower group. Separate guide surfaces are formed in the extensions of the front panel to deflect into the conveyer coal dislodged by the cutters on said extension. Provided at the ends of the devices are loaders on which are adjustably mounted faceengaging shoes so that the depth of the cut can be regulated. Means are provided on the device behind and extending above the upper cuts to apply pressure to the top of the undercut to assist the disintegration of the face. The single device cutting over the whole transverse section of the undercut may be replaced by two smaller devices reciprocating in different horizontal planes in such a manner that the combined transverse vertical sections of the two devices correspond to that of the single device.