baber/WOPTO huggingface dataset:
Patent GB-646205-A (GB)
Title: Improvements in or relating to colloidal aqueous dispersions and methods of preparing same
IPC: C08G12/38
Filed: 1947-07-25
Abstract: A cationic colloidal aqueous dispersion of a resinous copolymer contains at least one mol. of melamine, 1 mol. of thiourea and 1.5-3 mols. of combined formaldehyde and is acidified with an acid other than sulphuric acid to a pH of 0.25-4 at a copolymer solids content of 10 per cent.  Part of the thiourea may be replaced by urea.  The dispersion may be prepared by reacting the ingredients in acid medium, by reacting them in aqueous medium and acidifying by reacting methylol compounds of the ingredients together and acidifying, or by using the melamine in the form of its hydrochloride.  The dispersions are stable for a limited period.  The polymers may be deposited therefrom by absorption, adsorption, electro-deposition, ion exchange, drying or precipitation.  Of the mixture of melamine, thiourea or thiourea and urea, 50-90 mol. per cent is melamine. Suitable acids mentioned are hydrochloric, phosphoric, acetic. Ageing the acidified solutions to allow the condensation product molecules to become colloidal in size may be done at room or varied temperature, even with refluxing.  Polymerization may be checked by cooling or dilution with water or both.  The products may be used for paper or laminated paper manufacture (see Group VIII), as plywood adhesive or for treating textiles (see Group VIII), or may be dried to form films.  In example 1 solutions of dimethylol thiourea and trimethylol melamine were mixed, acidified and aged. In example 2 monomethylol thiourea was employed.  In example 3, melamine, thiourea and formaldehyde were heated to give an aqueous syrup which was dissolved in hydrochloric acid, and aged. In example 4 some urea was also present.  In example 5 the action of acetic, hydrochloric and phosphoric acids on solutions of melamine-thiourea-formaldehyde condensation products is demonstrated.  In example 6 a colloidal solution was produced from melamine hydrochloride, thiourea and formaldehyde.
Patent GB-1262619-A (GB)
Title: Improvements in or relating to telecommunications systems
IPC: H04M15/00
Filed: 1970-04-27
Abstract: 1,262,619. Telecommunication systems. SIEMENS A.G. 27 April, 1970 [25 April, 1969], No. 20064/70. Heading H4K. A telecommunications system has centralized metering and call charge equipment which includes intermediate storage arrangements, the intermediate storage arrangements being additionally employed as buffer stores in data transmission between subscribers and centralized special service facilities. The special services provided are a means of registering orders in a so-called booking system where the orders are produced at one or more central locations as print-out forms, and a central information giving device. The metering and charge equipment comprises supervision of the outgoing junctions of a telephone system, call data being accumulated in intermediate stores during a connection and being transferred to a ticket printer when the connection is released. This equipment also supervises special service junctions in order to relay instructions from subscribers. To register an order in the booking system a subscriber dials a special code to gain connection to a special service junctor circuit which sends back a second dial tone. Digits corresponding to the order are dialled by the subscriber and these are buffered in the metering equipment intermediate stores. End of code dialling is signalled by actuation of an earth key by the subscriber and the special service circuit responds by a signal calling for authority to effect registration of the order as a print-out form. Authority is sent by a dialled code. If, however, the subscriber wishes to cancel he operates the earth key a second time and re-obtains the second dial tone. Second dial tone is also re-obtained following registration of an order should a second order be required. The information giving device may be accessed in a similar manner, the device having a selector to connect with any particular special service junctor in order to send as acoustic signals the information being sought.
Patent GB-192103-A (GB)
Title: Improvements relating to building bricks blocks and the like
IPC: E04B2/36
Filed: 1921-07-26
Abstract: 192,103. Ver Mehr, J. July 26, 1921. Building-blocks, special shapes of.-Building blocks or bricks of substantially Z or S shape in plan are laid in horizontal courses, the blocks in each course being arranged alternately in Z or S formation so that the recesses 4 form hollow parts in the wall. The blocks are made of two widths so that successive courses may break joint while maintaining the continuity of the hollow parts and of the solid parts 7 throughout the height of the wall or structure. Corner blocks 8 are provided and, where necessary for building window and door openings, a third Z or S shaped block of different width is employed.
Patent GB-726670-A (GB)
Title: Improvements in or relating to permanent magnets
Inventor: HORSBURGH GEORGE DONALD LEE
IPC: B22D27/06
Filed: 1952-08-09
Abstract: 726,670. Casting processes. SWIFT LEVICK & SONS, Ltd. Aug. 10, 1953 [Aug. 9, 1952], No. 20092/52. Class 83 (1). A method of making permanent magnet castings of an alloy capable of exhibiting unidirectional columnar crystals, more particularly of the Alnico type, comprises forming the casting in a mould chilled at one end or at its two opposite ends, the remaining surface of the mould being composed of sand containing chemically exothermic substances, with at least part and preferably the major part of the outer surface bounding the thickness of the exothermic sand exposed to the atmosphere. Preferred compositions of alloys are described. Open-ended cylindrical moulds 1 of exothermic sand are mounted vertically on a chill plate 2, the moulds being spaced in rows, for example three rows of four moulds in each row, with spaces 3, between the moulds, open to atmosphere to enable the exothermic reaction to take place quickly. The open end of each mould is closed by an exothermic sand disc 4 with a gate 5 admitting metal from a refractory boat 6, held in place by metal bars 8. In a modification the moulds are supported horizontally between chill plates. Mould materials.-A suitable exothermic sand contains 25-30 aluminium powder, 8-9 manganese dioxide, 12-14 sodium nitrate, 3-4 sodium silico-fluoride, 41-50 fine silica sand or alumina powder and 2 core binder, mixed with 10 water, all expressed as percentages by weight of the whole. Specification 661,727 is referred to.
Patent GB-152468-A (GB)
Title: Improvements in or relating to cutting off machines
IPC: B23B5/14
Filed: 1919-08-16
Abstract: 152,468. Harrison, G., and Booth, Sir J. A. R. Gore-. Aug. 16,1919. Turning.- In a cutting-off device or attachment, adjustable steadies are arranged close to the tool or.tools, which are adjusted in level by screw-operated wedges. A plate 3 bolted to the saddle 4 has a hole 6 for the work 7, around which the ball-bearing steadies 8 are arranged on eccentric pins 9 which can be rotated by their squared ends 10<a>, Fig. 2, and locked bv nuts 10. The tools 12 are secured by bolts 16, after adjustment by wedges 17 moved by screws 18 and nuts 19, in holders 13 pivoted at their lower ends to the plate 3 and at their upper ends to links 14 connected to a. disk 15 pivoted to the upper pin 9 and having a hole for actuation by a bar 16.
Patent GB-185595-A (GB)
Title: An improved castor for furniture and the like
IPC: B60B33/08
Filed: 1921-07-27
Abstract: 185,595. Walley, J. M. July 27, 1921. Castors.-A ball castor comprising a ball-holder 1, and balls 8 retained between a inturned flange 5 round the bottom of the holder and the upper horizontal surface 1<a> thereof is formed to slip on to a pin 12 or into a socket carried by the article supported.
Patent GB-1462475-A (GB)
Title: Low light level image pick-up tube arrangement
IPC: H01J31/36
Filed: 1974-05-08
Abstract: 1462475 Image pick-up tubes THOMSON CSF 8 May 1974 [9 May 1973] 20291/74 Heading H1D [Also in Divisions H2 and H4] In a low-light level image pick-up tube arrangement employing a tube comprising - an image intensifier section A (Fig. 1) optically coupled (via fibre optics 6, 7) to a second section B comprising an image intensifier section C and an output section D protection against the effects of excessive illumination is achieved by controlling the EHT voltages U1 and U2 as a function of the beam current I2 of the analysing section D and as a function of the mean level of the video output signal SV. (See Division H4).
Patent GB-358554-A (GB)
Title: Improvements relating to electric switches or circuit breakers with arc-quenching means
IPC: H01H33/72
Filed: 1930-07-07
Abstract: 358,554. High-tension switches. RUPPEL, S., 8, Palmengartenstrasse, Frankfort-on-Main, Germany. July 7, 1930, No. 20530. Convention date, July 6, 1929. [Class 38 (v).] In a switch with a gas-blast blow-out a liquefied gas is used to supply the pressure and the liquid is supplied to the arc (in liquid form) and there vapourized. In the construction shown in the Figure, when the electrode 4 is withdrawn from the electrode 1 liquid air in the switch chamber 2 communicating with the container 9 is forced bv the inherent pressure of the liquid into the arc path and there gasefied to blow out the arc. The container 9 is filled from a pipe 13 up to the level of an overflow pipe 17 and then both pipes 13, 17 are closed to leave the liquid under pressure. Carbon-tetrachloride may be added to the liquid. In a modified construction, the movement of the electrode 4 actuates a piston which forces the liquid in an annular jet around the exterior of the electrode 4. A hollow electrode 4 may be used and the liquid forced both through it and around it in addition to an auxiliary gas blast obtained from a separate gas-pressure chamber and forced around the electrode at break. The amount of liquid supplied may be made dependent on the current to be dealt with and operation may be prevented by a float or diaphragm if adequate liquid is not available.
Patent GB-783922-A (GB)
Title: Improvements in or relating to high voltage regulating systems for electrostatic precipitators
IPC: B03C3/66
Filed: 1955-07-15
Abstract: 783,922. Measuring X-rays. RESEARCH CORPORATION. July 15, 1955 [Aug. 24, 1954], No. 20556/55. Class 40 (3). [Also in Group XXXV] In a system for maintaining the sparking rate in an electrostatic precipitator constant (see Group XXXV), the intensity of X-radiation generated in one or more electrodesupplying rectifier valves, such as 8, as a result of voltage pulses due to electrode sparking, is compared with that from a standard radioactive source 32, the comparison being made in Geiger counter detectors 28, 30. The pulsed outputs of the counters, of frequency proportional to the radiation intensity, are applied over pulse-integrating condensers 40, 38 respectively to the grids of valves 44, 42 respectively, whereby the relative currents in opposed relay windings 52, 54 in the valve anode circuits depend on the sense and magnitude of the sparking rate deviation from the optimum value set by source 32. A sufficient deviation causes relay contact 56 to make with one or other of contact X, Y, whereby the supply to the precipitator electrodes is correctively adjusted. A resistor 46 and/or the source itself may be adjusted to set the said optimum value. In a modification, Fig. 2 (not shown), the counter outputs are directly applied to the valve grids, each of which is capacitatively coupled to the anode of the opposite valve. The circuit functions as a freerunning multivibrator with negligible valve anode current if the sparking rate deviation is small, while a large deviation causes one or other of the valves to continuously conduct in one of the bistable conditions of the circuit.
Patent GB-1457867-A (GB)
Title: Air pollution control system
IPC: G05D13/62
Filed: 1975-05-15
Abstract: 1457867 Air pollution control system NISSAN MOTOR CO Ltd 15 May 1975 [21 May 1974] 20561/75 Heading G4H [Also in Division B7] An air pollution control system comprises means for transmitting a radio wave, and a motor vehicle operable under first and second conditions (fuel consumption being increased and air pollution decreased in the first and vice-versa in the second) and having means responsive to the radio wave for causing the vehicle to operate under the first condition when it is located in a particular area or particular areas and under the second condition when it is outside the area or areas. The particular area will be one in which the air is seriously contaminated, e.g. by motor vehicles and/or factories. The two conditions may correspond to operation of the vehicle with and without exhaust gas control, by means of an exhaust gas recirculation system, a catalytic converter or a thermal reactor. Alternatively, the vehicle may be operable by an internal combustion engine or by an electric motor.
Patent GB-517968-A (GB)
Title: Improvements in or relating to electrical control apparatus for regulating the temperature of railway and other vehicles
IPC: G05D23/275
Filed: 1938-07-12
Abstract: 517,968. Electrically-actuated valves. HENDERSON, P. L. July 12, 1938, No. 20594. [Class 135] [Also in Groups XXXV and XXXVII] A valve mechanism comprises two electromagnets 41, 42 whereby linked armatures 40 are reciprocated within a steam chest 22 to actuate through lost motion a lever 32 pivoted at 33 and carrying a ball 30 in a cage. The ball rolls along a track comprising a valve seat 28 leading to an outlet pipe 24.
Patent GB-1072382-A (GB)
Title: Improvements in or relating to ultrasonic probe
IPC: B06B3/00
Filed: 1965-05-14
Abstract: 1,072,382. Ultrasonic probes. PARAMETRICS Inc. May 14, 1965 [May 14, 1964], No. 20602/65. Heading H4J. An ultrasonic probe has three surfaces, one surface for generating Rayleigh waves or plate waves in a test-piece, a second surface for coupling longitudinal waves to a test-piece and a third surface for coupling shear waves to a test-piece. The probe comprises a piezoelectric crystal 101 bonded to a contact element 105. A contact face 102 lies at an oblique angle to the axis of waves generated by the crystal 101 and acts as a reflector whereby longitudinal reflected waves strike a face 103 at normal incidence. Face 103 provides the contact surface for longitudinal waves. Shear waves reflected from face 102 strike an annular contact surface 104 at normal incidence. The annular form permits the high contact pressure necessary for efficient transmission of shear waves. When the face 102 is placed against an extended body in which the Rayleigh wave velocity exceeds the incident velocity then Rayleigh waves may be generated in that body. If, however, the face 102 is placed against a plate of thickness comparable to the wavelength then, for certain combinations of plate thickness, test frequency and angle of incidence, plate waves will be generated.
Patent GB-771721-A (GB)
Title: Improvements relating to mine roof support for long-wall face workings
Inventor: BEYER RUDOLF
IPC: E21D17/082
Filed: 1955-07-15
Abstract: 771,721. Mine roof supports. BECORIT GRUBENAUSBAU GES. July 15, 1955, No. 20605/55. Class 20(2) A mine roof support of the advancing bar type for longwall fronts comprises pairs of roof bars k<SP>1</SP>, k<SP>11</SP> capable of being advanced alternatively, each pair of bars being interconnected by vertically swivelling and horizontally slidably displaceable guide members v equal in length to a considerable portion, preferably two thirds, of the total length of each bar. The guide members v are sheet metal bodies having tubular extensions or eye pieces r<SP>1</SP>, r<SP>11</SP> at their edges slidably mounted on metal rods e<SP>1</SP>, e<SP>11</SP> attached to the bars k<SP>1</SP>, k<SP>11</SP>. The rods e<SP>1</SP>, e<SP>11</SP> are detachable and can, be provided on either side of the bars. When the bars k<SP>1</SP>, k<SP>11</SP> are of I-section, skirtings g<SP>1</SP>; g<SP>11</SP>, may be secured to the edges of the flanges f<SP>1</SP>, f<SP>11</SP> to limit the angular deflection of the connecting member v. In operation, the props are removed from the bar to be advanced, allowing the bar to swing downwardly so that it can be pushed forwards with the tubular extensions or eye pieces r<SP>1</SP>, r<SP>11</SP>sliding along the rods e<SP>1</SP>, e<SP>11</SP>.
Patent GB-297729-A (GB)
Title: Sprayer
IPC: B05B11/06
Filed: 1928-07-16
Abstract: 297,729. Lowell Specialty Co., (Assignees of TVisner, O.). Sept. 26, 1927, [Convention date]. Air-pressure sprayers.- A sprayer of the kind in which air from a pump 1 is delivered across the end of a tube 16 in a liquid receptacle 8 has a chamber 14 formed forward of the pump to receive drip and return it to the receptacle 8 through an opening 15. The chamber has a conical outer wall 12 secured to an extension of the pump cylinder to collect the heavier particles of liquid and direct them into the drip cup 14.
Patent GB-842592-A (GB)
Title: Improvements in and relating to the production of concrete
Inventor: WATKINS CYRIL MERCER
IPC: C04B20/10
Filed: 1955-07-16
Abstract: A light-weight aggregate for concrete, e.g. foamed slag, pulverized fuel ash pellets, or exfoliated vermiculite, is coated with bitumen or tar in sufficient quantity to render the particles water-repellent for the time required for the cement to set but not sufficient to act as a binder or to prevent the aggregate from flowing.  The coating may be applied hot or in the form of a solution or emulsion.
Patent GB-1148566-A (GB)
Title: Neutron film dosimeter
IPC: G01T1/08
Filed: 1967-05-04
Abstract: 1,148,566. Detecting neutrons. UNITED STATES ATOMIC ENERGY COMMISSION. 4 May, 1967 [27 May, 1966], No. 20750/67. Heading G6P. A fast and thermal neutron dosimeter consists of a photographic sheet responsive to three separate neutron filters. Following exposure to a neutron flux, the density of the film, after development, is measured in a densitometer and applied to experimentally derived calibration curves to evaluate the exposure dose in m/rads. The three filters have different total cross-sections for neutrons in different sections of the energy spectrum and are formed of layers of stainless steel, tin, rhodium and cadmium. Fast neutrons penetrate all the layers with little absorption and the rhodium effects radiative capture of neutrons, producing beta and gamma radiation to which the film is sensitive. Gamma compensation occurs. The body of the wearer is a moderator for fast neutrons and a proportion of the fast neutrons after being scattered in the body is dispersed back to the filters. Gamma radiation from the body is reduced by lead, steel and tin sheets at the rear of the filter.
Patent GB-850497-A (GB)
Title: Improvements relating to bases for display and other stands
Inventor: SIMCOX JOHN RANDLE
IPC: A47F5/04
Filed: 1958-06-30
Abstract: 850,497. Ornamentings. METALS Ltd. March 20, 1959 [June 30, 1958], No. 20821/58. Class 52(1) In a pedestal base wherein a loading member 1 is covered by an ornamental plate 2 sprung over the rim of the member 1 the rim is relieved at two or more places 8 to permit temporary distortion of the cover plate on attachment.
Patent GB-732020-A (GB)
Title: Improvements in gas-sealed joints between cylinder heads and cylinder blocks
IPC: F16J15/08
Filed: 1953-07-28
Abstract: 732,020. Cylinders; joint-making packing. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. July 28, 1953 [Aug. 7, 1952; Sept. 4, 1952], No. 20873/53. Classes 122 (1) and 122 (3). [Also in Group XXVII] A highly resilient packing 6<SP>1</SP>, e.g. a ring of asbestos, which is inserted between a cylinder head 4 and a flange 1 of a cylinder liner, particularly a wet liner, is placed under an initial stress such that under varying gas pressure in the cylinder the packing has the characteristic of a weak or highly resilient spring connection, while between the cylinder block 3 and the co-operating face of the head 4 the sealing contact is such that the tightening - down pressure produced between the cylinder and the face of the head while the initial stress is being imparted to the packing 61 results in a non-elastic or slightly elastic connection. As shown in Fig. 1, the packing 6<SP>1</SP> is disposed in an annular recess 5 of the flange 1 and is protected from combustion gases by an annular wall 8. That part of the joint between the cylinder block and head may be formed by a metal-to-metal contact'or a sheet of metallic or non-metallic foil, or a coating of graphite or silicone-varnish applied, preferably, to the, surface of the cylinder head. In modifications, (a) a packing unit 6, Fig. 2, comprising a U-shaped ring 6a filled with metal rings 6b, or asbestos; is located in the recess 5 of the flange 1 with the open side of the " U " facing the cylinder space, there being a gap 9 between the annular wall 8 and the head 4 to allow access of gas pressure to promote spreading .of the ring 6a, and to increase the sealing pressure, (b) the paking is formed by spirally winding a curved metal band 7a, Fig. 3, the convolutions of the packing being held together by copper cover rings 10 and the convex side of the band facing the cylinder space; (c) Fig. 5 (not shown), two rings as shown in Fig. 2 are disposed concentrically within a single recess in the flange 1; (d) Fig. 6 (not shown), two rings as shown in Fig. 2 or Fig. 3, or one of each kind, are housed in concentric recesses separated by an annular wall; (e) Fig. 7 (not shown), a ring or rings as shown in Fig. 2 or Fig. 3 is or are located partly in a recess or recesses formed in the flange 1 and partly in an oppositely disposed recess, or recesses in the head 4; and (f) a packing ring as shown in Fig. 2 or Fig. 3 is disposed in a recess 5, Fig. 8, separated from the cylinder space by an annular wall 8a provided with recesses 13 forming a labyrinth-like path and projecting into a recess 12 in the head 4.
Patent GB-1276309-A (GB)
Title: Process for heat-treating electromagnetic steel sheets
IPC: C21D8/12
Filed: 1969-04-24
Abstract: 1276309 Heat-treating steel for magnetic use NIPPON STEEL CORP 24 April 1964 [24 April 1968] 20940/69 Heading C7A A steel containing in percentage by weight and optionally is hot rolled, annealed at 750C. -1200C. for 30 seconds to 30 minutes to bring about a gammatransformation at least at the grain boundaries, allowed to cool to a temperature between 750C. and 950C. according to the silicon content, and cooled from there to 400C. in 2 to 200 seconds to precipitate AlN. The steel is then subjected to one or more cold rolling steps, the final one producing a reduction of 65 to 95%, followed by decarburization and final annealing. The initial annealing temperature may vary according to the silicon content of the steel.
Patent GB-911998-A (GB)
Title: Heat-fusible material spray gun and method of spraying
IPC: B05B7/20
Filed: 1961-06-09
Abstract: 911,998. Spraying fusible materials. METCO Inc. June 9, 1961 [June 22, 1960], No. 20941/61. Class 69 (3). The blast of a heat-fusible material spray gun is deflected by a separate blast gas stream of trough-shaped cross-section, the plane of the base of the trough cutting the axis of the said blast at an angle of between 60 and 90 degrees. Thus the gun may be axially directed into a tube whereby the interior surface of the latter may be coated by the deflected spray. As shown in Fig. 3, a gas cap 1 of a spray gun has an axial blast gas flow passage 2 leading to an outlet 3, and the tip of a wire 21 is melted by the combustion of gas from burner jets 14, and the metal is then atomized by compressedair fed through the space 22 to the passage 2. A proportion of the compressed-air is led through passages 9 into an extension 5 of the gas cap and comprising a chamber 7 with outlet jets 6 arranged in trough form so that a trough-shaped air blast passes transversely across the spray direction. Instead of separate jets 6 a single trough-shaped slot may be provided. The jets may be arranged as in Fig. 6 (not shown) to provide a fan-shaped spray pattern. A powder spray nozzle having a similar extension providing a deflecting blast gas is described.