baber/WOPTO huggingface dataset:
Patent GB-454324-A (GB)
Title: Improvements in or relating to the manufacture of pigments containing titanium
IPC: C01G23/08
Filed: 1935-02-26
Abstract: In the production of titanium pigments, for instance those containing titanium oxide with or without barium or calcium sulphate or zinc oxide, the crude pigment is heated under pressure with water to a temperature approaching the critical temperature of water and in the presence of between about \ba1/100\be to 2 equivalents of an acid reacting compound such as hydrochloric or sulphuric acid or an acid salt, with or without a neutral salt, whereby the usual calcination step is rendered unnecessary. Examples relate to the treatment of titanium hydroxide precipitated from titanium tetrachloride or sulphate, in the presence respectively of a controlled amount of hydrochloric or sulphuric acid, the heat treatment being effected at 360 DEG  C., under a pressure of 200--210 atmospheres.  According to the Provisional Specification, the heat treatment may take place in the presence of bases or basic or neutral salts, or of oxidizing or reducing agents, or of colloids.
Patent GB-327249-A (GB)
Title: Improvements in electric motors
IPC: H02K23/54
Filed: 1929-02-25
Abstract: 327,249. Zetsche, J., Petersen, O. N., and Ross, J. Sinclair-. Feb. 25, 1929. Rotary machines; motors, controlling; polepieces.-In an electric motor for operation on either alternating or continuous current and in which the stator and rotor are provided with flat coils wound on separate bobbins, the windings are adapted for connection in different ways so that the motor can operate on circuits of different voltage or can run at different speeds, and the iron cores of the stator and rotor coils are connected at the ends adjacent one another by closed iron pole rings. The stator comprises four coils 1, the cores 2 of which are countersunk in an iron base plate 3 and the upper ends of the cores are interconnected by a closed iron ring 6 which preferably is of triangular section with a vertical wall 7. The rotor consists of an iron disc 8 carrying a number of coils 14 which are connected to a commutator 19 carried by the vertical spindle 9. The lower ends of the rotor cores 16 are interconnected by an iron ring 17 formed with a vertical outer face which rotates in close proximity to the vertical surface 7 of the ring 6. The stator coils are connected two in series and the pairs in parallel and the coil terminals and the brushes 20 are connected to a series of fixed contacts with which co-operate a number of movable contacts whereby the motor can operate as a two-pole, four-pole, shunt series or compound wound machine and an alternating current can work in addition as a repulsion motor.
Patent GB-1178853-A (GB)
Title: Improvements in or relating to Processes and Apparatus for Producing Metallurgical Products
Inventor: STOOKEY KENNETH WELDON
IPC: F27B1/16
Filed: 1967-02-09
Abstract: 1,178,853. 'Melting and refining metals'. K.W. STOOKEY. Feb.9, 1967 [March 2, 1966], No.6252/67. Heading C7D. [Also in Division F3- F4] A water cooled or refractory lined shaft furnace 10 for melting and refining metals, has an enlarged bottom end 36 so defining an annular open space 70 about the bottom portion of the furnace burden 65. Tuyeres 40 fed with blast air from bustle pipe 38 and hydrocarbon fuel from line 44 in a desired ratio, fire tangentially Fig. 3 (not shown) into the annular space 70, causing improved contact for better reaction between the surfaces of the slag 56 and the molten metal in the recess 52 at the bottom of the furnace. An auxiliary valve controlled stack (78, Fig.2, not shown) leads combustion products off from the space 70 during start up, so that they do not pass through the burden, thereby melting it and causing flooding of the hearth before conditions at the bottom of the furnace are suitable for tapping the metal produced. When normal operating conditions have been attained, the valved stack is closed and the combustion gases pass normally up through the burden 65. To increase and control the furnace throughout, fines, chips, fluxing material, ferrosilicon and turnings may be added directly into the annular space 70 instead of being top loaded into the furnace. The composition of the metal melt can therefore be quickly controlled. The charge is made up of pelletized, sintered and partially reduced ores, alloys, scrap, coke and a fluxing material. Zinc and lead as well as iron may be refined in such a furnace.
Patent GB-586631-A (GB)
Title: Improvements in electron discharge devices of the velocity modulation type
IPC: H01J25/30
Filed: 1943-04-19
Abstract: 586,631. Velocity - modulated tubes. STANDARD TELEPHONES & CABLES, Ltd., and FREMLIN, J. H. April 19, 1943, No. 6277. [Class 39 (i)] In an electron-discharge device, wherein a beam of electrons is projected diametrically through a coaxial line resonator and is . reflected back by a reflector 4, means are provided to prevent the electrons reflected back from reaching the source of the beam. In the construction shown, an apertured plate 5 is used for this purpose. The electrons from the cathode 1 are formed by control electrode 2 into a number of pencils, which pass through the apertures in plate 5. An electrostatic field set up between a pair of deflecting plates 6, in conjunction with a magnetic field deflects these pencils so that after reflection they miss the apertures, as shown, and strike the plate. Specification 537,490 is referred to.
Patent GB-1364205-A (GB)
Title: Methods of removing a deposit from a surface of a solid body
IPC: G21F9/00
Filed: 1972-02-10
Abstract: 1364205 Blasting SIEMENS AG 10 Feb 1972 [17 Feb 1971] 6316/72 Heading B3D A method of removing a deposit from a surface of a solid body comprises projecting a stream of particles, entrained in a flow of pressurized gas, to impinge on the deposit, the particles being made of material, such as boron trioxide, that is of hardness less than 7 on Mohs scale of hardness and is also less hard than the material of the surface. The surface may he part of a steam generator of a nuclear reactor and the deposit consist of a coating of radioactive and inactive corrosion products and radioactive fission products. The boiler 3 of the generator has a plurality of tubes 34 connected to a plate 31 beneath which is a partition 32 dividing a space into input and output chambers. If the seal between one of the tubes and the plate becomes defective, the plate must first be decontaminated and this is effected by a stream of boron trioxide which is expelled from a nozzle 21 by gas supplied from a compressor 22: the grain size of the boron trioxide is 150 Á and the pressure is 6 atmospheres. The used material is removed by suction and passed through filters. After treatment, water is flushed over the surface to remove the boron trioxide. A screen in the form of a plastic sheet 4 protects the environment and pressure air in the chamber is removed through an aperture 24 and discharged to the atmosphere through a filter 25. Mist is supplied through nozzles 41 to provide a high degree of humidity in the chamber so that boron trioxide particles and the particle from the coating are precipitated into a vessel 42. Any particles of boron trioxide remaining in the chamber are dissolved in use in the water or heavy water used in the apparatus.
Patent GB-647557-A (GB)
Title: D.c. impulse operated selector switch
IPC: H01H67/06
Filed: 1948-02-28
Abstract: 647,557. Electromagnetic switches. GUARDIAN ELECTRIC MANUFACTURING CO. Feb. 28, 1948, No. 6334. Convention date, Aug. 19, 1940. [Class 38(v)] A predetermined number of impulses delivered to an electromagnet 32 causes the reciprocation of the armature 36 and the step-by-step rotation of a ratchet wheel carrying a contact arm 22 till the arm engages a selected contact 16 and so prepares a circuit 17 which after a short time interval is completed for a predetermined time through the automatic release of two timelag D.C. relays 56, 70. Both these relays have copper slugs 56b, 70b giving them a slow release. When impulses from the circuit 100, 101 are delivered to the magnet 32 the reciprocation of its armatures 36, besides rotating the ratchet wheel, actuates contacts 78, 79 causing the intermittent energization of the relay 70 which, owing to the copper slug, attracts and keeps attracted to its armature thereby opening contacts 86, 87 in the main circuit between the lines 1 and 2 and closing contacts 88, 89 which cause the D.C. energization of relay 56 which closes contacts 82, 83 in the main circuit and also allows a check pawl to engage the ratchet wheel and prevent its return. When the series of impulses ceases, contacts 78, 79 permanently open causing the timed release of relay 70 which first closes contacts 86, 87 so completing the selected circuit between lines 1 and 2 and then opens contacts 88, 89 causing the later timed release of relay 56 and the breaking of the selected circuit at 82, 83. The check pawl also disengages the ratchet wheel so that this and contact arm 22 return to starting' position.
Patent GB-491790-A (GB)
Title: Improvements relating to the indicating mechanism of measuring instruments
IPC: G06M1/04
Filed: 1937-03-03
Abstract: 491,790. Counting-apparatus. HAMILL, R. O. March 3, 1937, No. 6339. Convention date, March 27, 1936. [Class 106 (i)] Means for preserving the reading of a measuring instrument such as an electricity meter comprises an indicator normally unaffected by the movements of the measuring instrument but movable into engagement with a member of the measuring instrument to indicate the measured value without interference with the movement of the member. The reading of an electricity meter is indicated by dials and pointers 16, Fig. 1, in the ordinary manner. The shaft of the units pointer is connected by gearing 33, Fig. 3, to a pinion 34, Fig. 7, on a sleeve 35 surrounding a shaft 36 carrying a pointer 49. A disc 38 having a notch 39 is secured to the sleeve 35 so that the position of the notch corresponds with that of the units pointer 15. A disc 42 is secured to the shaft 36 and has pivoted to it a pawl 40. The shaft 36 can be driven by a pinion 46 frictionally engaged with a collar 48 on the shaft 36. When the pinion 46 is operated, the shaft 36 and pointer 49 are driven until the pawl 40 engages the notch 39 in the disc 38, the pointer 49 then indicating the same reading as the units pointer 16. The sleeve 35 is geared to similar sleeves having notched discs 55, 69, 83, Fig. 3, for controlling the setting of tens, hundreds and thousands pointers 62, 67, 86. The driving pinion 46 is geared to similar pinions 59, 75, 92 for effecting the settings in the same manner as in the case of the units denomination. The driving pinions 46, 59, 75, 92 are driven through gears 95, 97, Fig. 1, and pawl-and-ratchet mechanism 100 by a handle 103 so that when the handle is given one anticlockwise turn, the pointers 49, 62, 67, 86 are set to the same reading as the main pointers 16. The handle 103 is returned by a spring 108 acting through a toothed sector 106 and pinion 105.
Patent GB-437363-A (GB)
Title: Improvements in or relating to heat-treated cast iron
IPC: C22C37/04
Filed: 1934-02-27
Abstract: A heat-treated cast iron especially for brake-drums, has a laminated pearlitic structure and contains 0,85-1,15 per cent more manganese than 1,72 times the sulphur content.  Such a cast iron may contain 2,1-2,7 per cent of carbon, not more than 0,2 per cent of phosphorus, 0,85-1,15 per cent of silicon and up to 0,25 per cent of sulphur.  An iron produced by melting 48 per cent of hematite pig iron with 52 per cent of shop scrap and having 2,46 per cent of carbon, 1,01 per cent of silicon, 1,15 per cent of manganese, 0,75 per cent of sulphur and ,068 per cent of phosphorus is referred to.  If required, other metals such as chromium (up to 0,4 per cent) or copper (up to 2,0 per cent) may be added, the silicon content being if necessary raised (in an example to 1,68 per cent) to counteract any inhibiting effect upon graphitization produced thereby.  The heat-treatment comprises heating for a prolonged period at a temperature above the critical point followed by slow cooling and maintenance for a prolonged period at a temperature at or about the critical temperature.  In examples, the cast-iron is maintained at 920 DEG  C. for 40 hours or at 870 DEG C. for 60 hours and is cooled at a rate which does not exceed 10 DEG C. per hour to 725 DEG  C. which temperature is maintained for a prolonged period, e.g. 25 hours.  The cooling from the annealing temperature may be such that between 800 and 700 DEG  C., the rate thereof does not exceed 5 DEG  C. per hour.  Alternatively the cast iron may be heated to 910 DEG  C., in 6 hours, maintained thereat for 40 hours and then cooled to 725 DEG  C., in 20 hours, at which temperature it is maintained for 25 hours.
Patent GB-399101-A (GB)
Title: Improvement in method of forming massive cementitious bodies
IPC: C04B7/02
Filed: 1933-03-02
Abstract: Massive cementitious bodies, e.g. concrete dams, are made from a cement mix or concrete containing a Portland cement of low heat of hardening described in Specification 400,813.
Patent GB-488508-A (GB)
Title: Improvements in and relating to thermionic oscillation generators
IPC: H03B5/10
Filed: 1937-03-04
Abstract: 488,508. Valve generating circuits. TELEPHONE MANUFACTURING CO., Ltd., and PADDLE, L. H. March 4, 1937, No. 6439. [Class 40 (v)] In an ultra short wave oscillator comprising a number of valves arranged with their anodegrid paths in series and with an inductance connected between one pair of like electrodes and a connection of negligible inductance between the other pair, the cathodes are caused to oscillate relatively in potential by including in the cathode circuit a tuned circuit resonating at the oscillation frequency. In Fig. 1, the oscillator comprises a pair of directly-heated triodes V1, V2 with a direct connection between the grids and with an inductance L1, in the form of a loop or a Lecher-wire system, connected between the anodes. The filaments are connected to the supply B2 through Lecher wires LW1 and LW2 tuned to the oscillation frequency, or alternatively, Lecher wires and high frequency chokes may be used, Fig. 2 (not shown). Fig. 3 is characterized by the use of a Lecher-wire system LW3 in the anode circuit and by the connection of a tank circuit, comprising inductance L2 and condenser C2, between the cathodes. Greater high frequency stability may be achieved by connecting two variable condensers in series with the tank circuit, Fig. 4 (not shown). The connections between grids and anodes may be interchanged throughout. When more than two valves are employed they may be interconnected as described in Specification 475,673.
Patent GB-930537-A (GB)
Title: Improvements in or relating to pencils and pencil sharpeners
IPC: B43L23/08
Filed: 1960-02-24
Abstract: 930,537. Pencil sharpeners. CHEN THIAM. March 15, 1961 [Feb. 24, 1960], No. 6497/60. Class 146 (3). A pencil sharpener is provided with an internally screw - threaded sleeve G which co-operates with a screw-threaded metal ring L mounted on the rear end of a pencil to retain the sharpener on that end when it is not in use. The sleeve G is longitudinally slotted for greater resilience. An eraser M is carried in the metal ring L.
Patent GB-1260912-A (GB)
Title: Automatic shotgun having an improved firing mechanism
Inventor: MAZZA GIOVANNI
IPC: F41A19/07
Filed: 1969-02-06
Abstract: 1,260,912. Automatic shotguns. G. MAZZA, and A. FANUZZI. 6 Feb., 1969 [6 Feb., 1968], No. 6524/69. Heading F3C. An automatic shotgun has a firing mechanism comprising a single release A provided with a return spring 19. The single release A is in the form of a push lever release which is a device actuated by pressure exerted in a direction towards or into the shotgun. A transmission lever B is rigidly connected at one end to the single release A and at the other end to a control lever C which directly acts upon a hammer 12 of the shotgun. The shotgun disclosed is a Breda twelve-gauge shotgun which is of the long barrel recoil type and which comprises a barrel extension 3, a breech bolt 5, a striker 6, a breech bolt locking member 7 and a cartridge loading device which transfers a cartridge from a magazine 15 to the chamber of the firearm.
Patent GB-1571804-A (GB)
Title: Recovery of esters derived from n-benzoyl-n-2-aminopropionic acids
IPC: C07C233/12
Filed: 1976-02-19
Abstract: The economic preparation of esters of the general formula I in which X and Y each represent a fluorine or chlorine atom and R represents an alkyl group having from 1 to 3 carbon atoms starts from a mother liquor which remains after crystallising the crude ester from an organic solvent; this mother liquor contains the ester of the formula I, or this ester together with the corresponding debenzoyl ester, and is subjected to the following individual steps:   (a) treatment of the mother liquor or of the residue thereof with an aqueous alkali metal hydroxide; (b) treatment of the resulting aqueous phase, which contains an alkali metal salt of the carboxylic acid originating from the hydrolysis of the ester, with an organic solvent which is essentially immiscible with water;   (c) acidification of the aqueous phase with a mineral acid; (d) esterification of the liberated carboxylic acid(s) with an alkanol having from 1 to 3 carbon atoms in the presence of an acid catalyst and, in the case where the mother liquor of the crude ester also contains the debenzoyl ester, (e) benzoylation of the esterified product from step (d) with a benzoyl halide under essentially anhydrous conditions.   <IMAGE>
Patent GB-525786-A (GB)
Title: Improvements in screw presses
IPC: B30B1/18
Filed: 1939-03-01
Abstract: 525,786. Presses; worm gearing. HINDLE, J. H. March 1, 1939, No. 6649. [Class 87 (ii)] [Also in Group XXIV] Relates to worm gear units and more particularly to such units for use in screw presses employing a vertical output shaft projecting downwards through the bottom of the gear casing. As shown, the screw B<SP>1</SP> of the press is integral with the shaft B which is journalled in a sleeve a integral with a casing A, the worm c being housed in a lubricant bath confined by the wall a<SP>1</SP>. The worm is driven by a worm on a shaft c<SP>1</SP> and the drive is transmitted to the shaft B by bolts d<SP>2</SP> slidable in holes in a hub E coned and keyed to the shaft B. An intermediate member D rotatable on a sleeve d is supported on a ball bearing d<SP>1</SP>, and the upward thrust of the screw B<SP>1</SP> is taken by a ball bearing G. Lubrication is effected by a spring-loaded grease lubricator F and passages f, f<SP>1</SP>. In a modification, the thrust bearing G is arranged at the bottom of the shaft B and a bearing sleeve is interposed between the shaft and the sleeve a.
Patent GB-1529534-A (GB)
Title: Self drilling one-piece masonry anchors
IPC: F16B13/13
Filed: 1977-02-17
Abstract: 1529534 Self-drilling masonry anchor ILLINOIS TOOL WORKS Inc 17 Feb 1977 [23 Feb 1976] 6664/77 Heading F2H [Also in Division B3] A self-drilling masonry anchor 10 comprises a sleeve portion 12 having a bore 18 and socket 22 for a driving tool, and a drill portion 14 having a threaded bore 36, the two portions being connected by a frangible wall 16. In use, the anchor may be drilled into masonry using a rotary percussion hammer device. After drilling to a predetermined depth, the upper surface is impacted causing fracture of wall 16 and telescoping of the sleeve portion over part of the drill portion so as to set the anchor in the bore in the masonry. A mating bolt may then be threaded into bore 36 to attach a fixture.
Patent GB-601655-A (GB)
Title: Improvements in or relating to electric remote control or indicating systems
IPC: G08C15/12
Filed: 1943-04-29
Abstract: 601,655. Synchronous movements. JONES, W., and PYE, Ltd. April 29, 1943, No. 6775. [Class 40 (iii)] [Also in Groups XXXVIII and XL (c)] In a pulse-repetition system-for reproducing movements at a distance, e.g. for causing the deflecting coils of a cathode-ray indicator to move with a speed and in a direction corresponding to the movement of a directional aerial, separate-pulses are modulated (e.g. in width) in dependence upon the direction and speed of the movement to be reproduced, the difference in modulation being used to control, e.g. a splitfield motor driving the deflecting coils. In Fig. 1, the pulses d, e are modulated as described above, pulses a are used for synchronizing a radial time base, pulses b for conveying echo or other signals and pulses c for alignment purposes. In the transmitter shown in Fig. 2, the aerial 1 when moved in one direction or the other drives a D.C. generator 7 or 8 which modulates in width pulse generator 5 or 6, the outputs of which are mixed with each other at 9, and at 10 with the time-base pulses a, the signal pulses b and the aligning pulses c, and transmitted at 12 by cable or wireless. The pulse generators 5, 6 consist of " slicing " valves which extract "slices" " from the sawtooth waves from generator 4, the position of the " slice " being dependent on the D.C. voltage from generators 7, 8. In the receiver, Fig. 3, the pulses d,e are separated at 14 from pulses a, b, c, and are separated from each other at 15, amplified at 16, 17, and applied separately to the coils of a split-field motor 18 .which rotates the deflecting coils of the indicator 19 in a direction determined by which pulse is modulated and at a speed determined by the difference in width of the two pulses, i.e. at the speed of the aerial 1. The time-base pulses a are separated by amplitude-discrimination at 20 and control a time-base generator 21 for the radial'scan, the signal pulses b are separated at 22 and applied to a modulating electrode of the C.R. tube, and the pulses c control a mechanical coupling between-the motor 18 and the deflecting coils, as in Specification 577,796, for ensuring the angular alignment of the rotating scan with the rotating aerial 1. The pulse' separators 14, 15, 22 comprise gating valves controlled by the time-base generator 21. Specifications 562,211 and 577,795 also are referred to.