baber/WOPTO huggingface dataset:
Patent GB-752608-A (GB)
Title: Recovery of dinitrotoluenes
IPC: C07C201/16
Filed: 1954-08-05
Abstract: A mixture of 2 : 4- and 2 : 6-dinitrotoluene suitable for use in the production of toluylene di-isocyanate is obtained from a mixture of dinitrotoluenes obtained by the direct nitration of toluene by cooling the mixture in the presence of a solvent to a temperature from 0 DEG  to -10 DEG C., separating the crystals from the liquid phase, and washing them with fresh solvent.  The solvent may be aqueous methanol, aqueous ethanol, isopropanol, aqueous acetone or mixtures of chloroform, carbon tetrachloride or aromatic hydrocarbons such as benzene, toluene, or xylene, with aliphatic hydrocarbons such as petrol, hexane, iso-octane, cyclohexane or mixtures thereof.  The solvent used for washing the crystals may be used for treating a further quantity of the crude mixture of dinitrotoluenes.  In examples: (1) the use of various solvents is illustrated; (2) shows the process adapted for continuous operation.
Patent GB-185117-A (GB)
Title: Improvements in the manufacture of concrete pipes and other forms
IPC: B28B21/00
Filed: 1922-08-22
Abstract: 185,117. Macnicol, A. N. Aug. 29, 1921, [Convention date]. Butt joints.-Concrete and like pipes are reinforced 'by bars 60a, Fig. 11, and circumferential wires 62, and the ends may be thickened and connected by bolts 65 passed through the turned-upends of the bars.
Patent GB-787869-A (GB)
Title: Universal wood or metal working machine
Inventor: HORSTMANN BEVAN GRAHAM
IPC: B23Q1/48
Filed: 1955-08-09
Abstract: 787,869. Woodworking: grinding. HORSTMANN & SHERWEN, Ltd. March 29, 1956 [Aug. 9, 1955], No. 22925/55. Classes 60 and 145. [Also in Group XXII] A machine for sawing, routing, grinding, polishing or drilling comprises a bed 6 attachable to a work bench; a vertical pillar 5, a horizontal beam 7 rotatably adjustable about its longitudinal axis in a bracket 9 which is vertically and rotatably adjustable on the pillar, a carriage 8 keyed to and slidable along the beam and a plate 21 angularly adjustable on the carriage and having a slideway 27 for a carrier 28 on which an electrically-driven tool can be mounted. The bracket 9 comprises a pair of split sockets 10, 11 embracing the pillar and beam and a split collar 14 supports the bracket on the pillar when it is left free for rotation on the pillar. The carriage 8 can be locked in position on the beam by a screw 48 engaging a gib 18 lying under the beam key 19 and the angularly adjustable plate 21 can be locked on the carriage by a conical-headed screw 23 and knurled wheel 25. For feeding the tool slide 28, a lever 33 is pivoted on the plate and has a pin-and-slot connection 34, 35 with the slide but the slide can be locked in any adjusted position by a clamp nut 38 engaging a sector plate 36 in which one side of the slideway 27 is formed. The electrically-driven tool is carried on the slide between a flange formed as a split socket 30 and a gripping screw 31 on a flange 29. A split bracket 40 on the lower part of the pillar has an arm 42 on which a work table 43 is angularly adjustable about a horizontal axis. Graduations and index marks may be provided on the bracket 9, the beam 7 and pillar 5, on the plate 21 and carriage 8 and on the arm 42 and work table 43. The Provisional Specification also describes the carriage 8 as being a U-shaped frame embracing the beam from underneath and having a pair of grooved rollers riding on top of the beam and a single grooved roller below the beam.
Patent GB-442201-A (GB)
Title: Rotary engines
IPC: F01C1/063
Filed: 1935-08-14
Abstract: 442,201. Rotary engines. VOIGT, R., 346, Schuckertdamm, Siemensstadt, Berlin. Aug. 14, 1935, No. 22933. [Class 110 (ii)] A rotary engine or pump comprises a stator d and a rotor a, which are separated by two or more sets of rollers b, C<1>-C<4> mutually in contact, the parts a, d, being eccentric to one another. In the case of a pump fluid enters a port e<1> and due to the driving action of the rotor a, and rotation of the rollers b, is conveyed to an outlet e<2>. The chamber separated by rollers c<1>, c<2> is smaller than that lying between rollers c<3>, c<4>. Fig. 4 shows another arrangement in which a forms the stator, and d the rotor. A driving pulley p is formed integrally with the latter, the whole being mounted upon a single bearing. A number of engines or pumps may have a common shaft a, the eccentricities of the units being displaced angularly for balance purposes. In the latter case, the rollers themselves form the bearing in each unit. Fig. 14 shows an arrangement of four engines, without separate bearings, driving a central machine m. The spaces between the b rollers may also be utilized as working spaces. Screw means may be used to adjust the eccentricity of a shaft or casing, to allow for wear. One set of rollers in an engine, may be formed of tubes with elastic walls which allow for expansion due to heat &c. in the engine. Labyrinth packing P may be used.
Patent GB-1038494-A (GB)
Title: Improvements relating to propulsion means for boats
IPC: B63H23/36
Filed: 1963-06-08
Abstract: 1,038,494. Preventing fouling of propellers. C. R. V. BURTON. June 2, 1964 [June 8, 1963], No. 22940/63. Heading B7V. In boat propulsion means wherein the propeller shaft 10 (Fig. 1, not shown) is rotatably mounted in a member (propeller tube 12 which houses bearings 11 and has a collar 14 secured thereto) which is non-rotatably fixed relative to the boat, a freely rotatable member 16 is mounted on said fixed member and about the propeller shaft in a position adjacent the propeller 13 so that in the event of weeds becoming entangled with the propeller they will also engage around said rotatable member and cause it to rotate with the propeller.
Patent GB-1165763-A (GB)
Title: Improvements in and relating to Fluid Flow Devices
Inventor: PARKISON RICHARD G
IPC: F16K47/02
Filed: 1967-05-18
Abstract: 1,165,763. Spray producers. AMERICAN RADIATOR & STANDARD SANITARY CORP. 18 May, 1967, No. 23132/67. Heading B2F. [Also in Divisions F2 and G3] A silencing nozzle for a water faucet 12 comprises a series of radial passages 38 and a mesh dome 34 mounted at the outlet end of the nozzle. The passages are formed from a flat strip 36 (see -also Fig. 2A not shown) of wire or plastic mesh formed into the shape illustrated in Fig. 2 and inserted into the nozzle outlet. A further flat 'mesh disc 54 may be interposed between the strip 36 and the dome 34.
Patent GB-233966-A (GB)
Title: Improvements in means for trapping or stopping the delivery of yarn or thread in machines or frames for preparing or treating yarns and threads
IPC: D01H13/18
Filed: 1925-01-10
Abstract: 233,966. Bottomley, W. Jan. 10, 1925. Delivery, stopping; thread guides.-In means for stopping the delivery in machines for preparing or treating yarns and threads, of the kind wherein the trapping-means for the yarn comprises a pivoted member h and a rotary member o the engaging surfaces of which are roughened or provided with teeth, the wire r connected to the pivoted member is provided with a loop s, Fig. 3, into which a broken end is drawn if it is engaged by an adjacent yarn, the depth of the loop being such that the upward movement of the wire is not impeded by the end. The trapping members are carried by a plate l connected to a plate m provided with wings n, Fig. 5, which rest in a channel plate secured to the roller stand. A projection t limits the upward movement of the member h, which may be held up during doffing by a swivel piece. Porcelain guides v are mounted on a horizontally movable bar w, so that the yarns may be moved sideways from the trapping-members when the frame is stopped, the slack yarn between the rollers and spindles being taken up by the rising of the wire r.
Patent GB-394163-A (GB)
Title: Improvements in sack sewing machines
IPC: D05B13/00
Filed: 1932-08-18
Abstract: 394,163. Sack-sewing machines. MAUSER-WERKE AKT.-GES., Oberndorfon-Neckar, Wurtemberg, Germany. Aug. 18,. 1932, No. 23195. Convention date, Sept. 14, 1931. [Class 112.] The coupling for the sack conveyer device and the coupling for the sewing device are engaged in succession and disengaged in the reverse order by elements simultaneously setin motion but having different lengths of travel. A filled sack is placed on the conveyer device and the pedal i depressed. This movement is transmitted through the rod h, the ball-joint k and rod g to rock the shaft f About its axis to rotate the lever l<1> to force the belt pulley b, driving the conveyor into frictional coupling relation with the disc d. At the same time the lever q is also rocked and, through the transmission member q<1> and levers rand r<1>, brings the second belt pulley c, driving the sewing machine, near to its frictional coupling disc e. As the distance which the belt pulley c has to travel is greater than that traversed by the belt pulley b, the latter will come first into contact and engagement with its corresponding disc. Consequently the conveyor band will come into operation first. As the pedal i is further depressed, the double lever l, l<1> is not moved further as the belt pulley b has had its stroke limited by the disc d. But the lever q continues to rock against the action of the spring n, and the pulley c engages its disc e by the action of the parts q<1>, r and r<1>. To stop the machine, the pedal i is first slightly released, when the belt pulley c under the influence of the spring n, moves slightly to the left to disengage its disc e and to engage the brake block on the lever s. As the pedal is further released, the abutment o<1> bears against the projection o and the lever l rotates further under the action of the spring n to bring the belt pulley b out of engagement with its disc d. At the same time, the lever l with its brake block m moves upwards and bears on the pulley b to bring the conveyer rapidly to rest.
Patent GB-1199225-A (GB)
Title: Improvements in or relating to the Production of Dry Charged Electrodes
Inventor: KOUDELKA VOJTECH
IPC: H01M4/23
Filed: 1968-05-16
Abstract: 1,199,225. Drying electrodes. PRAZSKA AKUMULATORKA, NARODNI PODNIK. 16 May, 1968 [10 July, 1967], No. 23235/68. Heading F4G.  A method of producing dry charged negative electrodes for lead accumulators comprises drying the electrodes after formation and washing by piling them closely one above the other into prismatic blocks and heating the blocks by conduction to 100-250‹ C. The electrodes may be treated with an oxidation inhibitor prior to drying. The block of electrodes may be placed in a thermally insulated chamber which has a thermostatically controlled electrically heated wall 5, a pivoted wall 4 and a top 3 which rests freely on walls 4 and 5. The chamber can be disassembled.
Patent GB-337394-A (GB)
Title: Improvements in the production of urea
IPC: C07C273/04
Filed: 1929-07-29
Abstract: 337,394. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). July 29, 1929. Urea.-In distilling the crude melts containing urea together with ammonium carbonate, or ammonium carbamate and water, obtained in the production of urea from ammonia and carbon dioxide under pressure, in order to recover the ammonia and carbon dioxide therefrom, and during that stage of the distillation which is effected at temperatures over 150‹ C. and under pressures sufficient to cause the mixtures of ammonia and carbon dioxide which pass over to condense in the liquid form, an excess of ammonia over the amount required to combine with all the carbon dioxide present in the distillation apparatus is continuously maintained therein, in order to check decomposition of the urea. Preferably at least 2.5 molecular proportions of ammonia are present for each one of carbon dioxide. When the carbon dioxide has been driven off in this manner as completely as possible together with part of the ammonia, the remainder of the ammonia is distilled off under lower pressures and at temperatures at which the urea does not decompose. In an example, a melt containing urea together with combined ammonia, carbon dioxide, and water is forced by means of a heated pump into a distillation apparatus maintained at a temperature between 150' and 300‹ C., excess of ammonia being passed in simultaneously. A mixture of carbon dioxide and ammonia is distilled over under a pressure of 100 atmospheres, and is condensed as ammonium carbamate in a receiver heated to about 150‹ C., the requisite amount of fresh carbon dioxide being introduced into the condenser under the necessary pressure. The resulting condensate containing ammonium carbamate, water, and preferably a slight excess of ammonia, then flows into an autoclave in which it is converted into urea. The aqueous ammoniacal solution of urea leaving the still is conveyed to a second distillation apparatus, in which the pressure is reduced to 10-15 atmospheres and the ammonia distilled off at temperatures below 100‹ C. The ammonia is recovered by cooling in the liquid state, and is reintroduced with fresh ammonia into the first distillation apparatus. Solid urea is obtained from the purified urea solution in known manner.
Patent GB-726154-A (GB)
Title: Massaging equipment
IPC: A61H23/02
Filed: 1953-08-25
Abstract: A massage appliance has two or more applicators, in the form of sleeves, cuffs or suction cups which are actuated sequentially, to urge the blood along a limb etc., the timing of their pulsations being determined by the action of the heart so as to coincide with the natural flow of blood through the limb.  The heart action may be ascertained by pick-up electrodes applied to the body or by a piezo-electric, electromagnetic or electrostatic device actuated by the pressure of a pulse or microphonically.  In one form of the apparatus, see Fig. 1 (not shown), pick-up electrodes receive heart pulsations which are then amplified and employed to actuate a relay which, by causing condensers to be charged at different rates, allows valve controlling magnets to be operated at the appropriate intervals.  These control magnets actuate valves associated with pressure or vacuum sources and connected to individual massage applicators.  A number of outlets, each connected with a different pressure regulator, may be connected with a single source or separate sources may be employed.  In another arrangement, see Fig. 2 (not shown), a microphone placed against the heart, determines the initial timing and sequentially operated valves are timed by a relaxation oscillator feeding into a ring counter.  Each valve of the counter is associated with a pressure control valve and the instant of operation of the latter is determined by the adjustable charging time of a condenser.  In an electromechanical arrangement, see Fig. 7 (not shown), a timing valve, controlled by a microphone, causes cam discs to be driven by an electric motor and these drive the means for producing the varying pressures.
Patent GB-1427081-A (GB)
Title: Device for measuring couple mounted on a gear-train
IPC: G01L3/14
Filed: 1973-05-16
Abstract: 1427081 Measuring couples J HAVARD M GACHET and H CHARONNAT 16 May 1973 23376/73 Heading G1N The couple transmitted by a gearing system is measured by strain gauges 11, 12, Fig. 1 and diametrically opposed strain gauges (13), (14) Fig. 2 (not shown) connected in a bridge circuit. The gauges are fixed to a non-rotating shaft 6 supported at its end 7, 8 and carrying gears 3, 4. The shaft is hollow, and the leads from the gauges pass through it to casing 17. The signals from the gauges may be used to control the couple, e.g. to control one or more mooring windlasses of a ship from a central control board, Fig. 8 (not shown).
Patent GB-1130016-A (GB)
Title: Apparatus for setting a gauging device
IPC: G01B5/16
Filed: 1966-05-26
Abstract: 1,130,016. Setting apparatus. W.A. TUPLIN. May 26,1966 No.23521/66. Heading G1M. In apparatus for setting the position of a measuring head 3 and stylus 1 attached to a plate 4, the plate 4 is set in a number of positions relative to a further plate 7 through inter-engagement of a grooved member 13 attached to plate 4 with spheres 10 mounted on plate 7, the plate 4 being slideable in Y - Y<SP>1</SP> direction through engagement of balls 5 with a groove 6 in the plate 7. The member 13 is clamped at the required orientation to plate 4 by an adjustable clamp 15 movable along slot 16 in the plate 4. The spheres 10 are carried by a holder 11, the angular position of the holder 11 being determined with respect to the line Y - Y<SP>1</SP> by pins 8 slidable in slots 12, the sphere being retained in the holder by further clamping means 19. Thus, in use, by choosing the size of the spheres 10 and orientation of member 13 with respect to line YY', the size of the steps of movement of plate 4, and hence of the measuring head 3, may be predetermined.
Patent GB-1491609-A (GB)
Title: Cutters for removing a tough surface layer from pieces of material
IPC: B26D1/02
Filed: 1975-05-30
Abstract: 1491609 Skinning fish ARENCO AB 30 May 1975 [31 May 1974] 23694/75 Heading A2U A cutting apparatus for skinning pieces of fish comprises a roller 14-Fig. 5 to convey the fish and a stationary cutter 1, which removes the skin by cutting between it and the fish, the arrangement being such that the surface skin passes between the cutter and the roller whilst the remainder of the fish passes above the cutter, wherein the cutter has adjacent its cutting edge 3-Fig. 1 a projecting wall 4 extending across the direction of travel of the fish and away from the cutter side opposite the roller. Other cutter structures are shown in Figs. 2-4. In Fig. 4 the cutting edge and the wall are formed on a rib 11 projecting from the body 1 of the cutter.
Patent GB-777412-A (GB)
Title: Welding machine
IPC: B23K9/18
Filed: 1955-08-17
Abstract: 777,412. Welding by fusion. ALLIS-CHALMERS MANUFACTURING CO. Aug. 17, 1955 [Aug. 23, 1954], No. 23729/55. Class 83 (4). In a submerged arc-welding machine for simultaneously depositing metal on a plurality of workpieces, a carriage 41 moving on rails 37, 38 supports a traverse 42 moving at right angles to the rails 37, 38 and carrying the welding heads 4. The traverse 42 runs between rollers journalled on the carriage 41 and is reciprocated by an adjustable crank driven by a motor on the carriage. The traverse 42 carries four welding heads 4, each comprising a torch 6 through which a continuous electrode is fed from a reel 31 and a flux nozzle 5. A double-armed work-table 2 is centrally pivoted and carries a set of four work stations 121 on each arm, so that workpieces may be unloaded and reloaded while other workpieces are being welded. An annular projection on other rotary part 116 of the table 2 dips into mercury in an annular well in the fixed pedestal 117 to provide a path for the welding current. Each work-station comprises a jig 126, Fig. 7, mounted on a pivoted plate 128 which may be lowered under control of a pneumatic cylinder 134 to allow surplus flux to be cleared away. The workpieces are held in position by magnetic clamps 127. When the carriage motor is switched on, cams 88 on the carriage 41 actuate switches 87 on the frame 11 to open the flux valves, switch on the welding current and start the traverse and electrode feed motors. The reverse operation automatically takes place as the carriage 41 reaches the end of its travel. Rotation of the work-table 2 by the operator automatically reverses the carriage 41 to its starting position and the work-table is locked in each of its operative positions by a pneumatically-actuated bolt.
Patent GB-1115066-A (GB)
Title: Support arrangement,e.g. for an electron storage target of an image orthicon tube
Inventor: NEY ROBERT JOHAN
IPC: H01J31/36
Filed: 1965-06-03
Abstract: 1,115,066. Image pick-up tubes. GENERAL ELECTRIC CO. 3 June, 1965 [12 June, 1964], No. 23788/65. Heading H1D. A charge storage target and grid assembly 22 in an image orthicon is supported from the cup-shaped electrode 15 of the image section by means of vibration damping strips 24 held between the rim 18 of electrode 15 and lugs 23 on the annular member 20 of a mount 19 for the target assembly. Vibration damping strips 24<SP>1</SP> are also provided between rim 18 and the shoulder 21 of annular member 20. The damping strips are provided at three equally circumferentally spaced points on each side around the rim 18 and with those on opposite sides relatively displaced. Alternatively, the damping strips may be annular. The damping strips may consist of steel wool or metal braid or of glass or quartz. In addition metallic strips may be provided to resist lateral or rotational movement.
Patent GB-1172996-A (GB)
Title: Rotary Impeller Pumps
Inventor: ANDREWS EDWARD GEORGE DAVID
IPC: F04D29/66
Filed: 1966-05-27
Abstract: 1,172,996. Centrifugal and axial-flow pumps. ROLLS-ROYCE Ltd. May 25, 1967 [May 27, 1966], No.23870/66. Addition to 1,153,993. Heading F1C. The invention described in Specification 1, 153, 993 is modified by providing a controlled return flow of pumped liquid through lines 5,6 to inlet duct 1 to reduce the net positive suction pressure and thereby obtain substantially constant delivery pressure at constant pump speed. The return flow is controlled by a valve member 9 biased to its minimum flow position by a spring 10 adjustable by screw 12. The return flow is directed into the inlet duct against the main flow to reduce the net positive suction pressure, through one or more nozzles 15 carried by a ring-shaped pipe 14. Alternatively or additionally, the return flow may be directed with an upstream component of motion through an annular opening at a number of circumferentially spaced openings in the wall of the inlet duct. When introduced through the annular opening the return flow also reduces the effective flow area through the inlet duct.
Patent GB-959141-A (GB)
Title: Antenna switching system
IPC: H01Q21/06
Filed: 1962-06-21
Abstract: 959,141. Radar; aerials. BENDIX CORPORATION. June 21, 1962 [June 26, 1961], No. 23945/62. Headings H4A and H4D. The invention relates to a beam-switching arrangement for use with the aircraft mounted Doppler Navigational System disclosed in Specification 949,681, in which system four beams are generated by switching between two arrays (each comprising a plurality of waveguides having slot radiators in their lower walls), and by reversing the phase progression in each array. In the present invention the phase reversal is achieved by means of a pair of 4-port ferrite circulators or by two pairs of 3-port ferrite circulators (Figs. 1 and 3, respectively). As shown in Fig. 1, a signal from the transmitter 31 is alternately switched from one 4-port circulator 17 to the other 24, the switches 33 and 32 preferably being ferrite controlled. Each circulator 17, 24 is also alternately reversed, by reversing the D.C. potential applied at the point 23, thus supplying energy to the waveguide terminals 12, 13, 15, 16 in a preselected sequence. In an alternative system (Fig. 3) there are two pairs of 3-port circulators 61 which are connected between the waveguide terminals 12, 13, 15, 16 and the transmitter 31 (or receiver 34), by the plurality of ferrite switches 66, 67; 65, 71; 68, 69. The circulators are unidirectional and are switched by reversing the magnetic field applied to a ferrite element within the circulator.
Patent GB-461990-A (GB)
Title: Improvements in and relating to reciprocating pumps
IPC: F04B1/04
Filed: 1935-08-28
Abstract: 461,990. Revolving-cylinder pumps. SPURIN, L. T., and MACLEAN, J. B. Aug. 28, 1935, No. 24059. [Class 102 (i)] A radial-cylinder pump comprises alternate discs 10, keyed to the shaft 6, and discs 9, through which the shaft passes freely. The discs 10 are bored to form cylinders for pistons 12, which carry pins 13 engaging cam tracks in the discs 9, the cylinders being formed with slots 14 for the passage of the pins. The discs 10 are recessed between the cylinder bores to form webs 23. The discs are housed in a casing 2, formed with circumferential suction and discharge passages separated by diametrically opposite abutments 19, 21, which engage the peripheries of the discs 9, 10. The inlet and outlet are,coaxial and are separated by the web 19, which carries a spring- pressed byepass valve.