baber/WOPTO huggingface dataset:
Patent GB-857327-A (GB)
Title: Steam power plants
IPC: F01K7/22
Filed: 1959-04-06
Abstract: 857,327. Feedwater heating systems. SULZER FRERES S.A. April 6, 1959 [May 12, 1958], No. 11642/59. Class 64(1) A steam power plant comprises a generator 1 feeding a turbine 4 and a condenser 5 from which feed water is heated in a plurality of stages before being fed to the generator. The feed water is divided at 8 to pass along two parallel paths 9, 9<SP>1</SP> wherein feedwater heaters 10 to 15 in the path 9 are heated by tapped steam from the turbine whereas heaters 18 to 21 in path 9<SP>1</SP> are heated by steam which is separated from a tapping by separator 23 of the generator between the vaporizing and superheating stages, by separators 25 to 28. The feedwater passing through path 9<SP>1</SP> may be drawn from path 9 at any of the junctions 38, 39 or 40 and may be fed back into path 9 through any of the pipes 46 to 50 depending on the temperatures of the two parallel paths of feed water, each of these junctions and pipes being controlled by valves. Water draining off from the final separator 28 may pass as waste through valve 59 or may pass through a salts removing plant 30 back into the feed water system.
Patent GB-1127797-A (GB)
Title: Improvements in or relating to amplifiers
IPC: H03F1/44
Filed: 1966-03-17
Abstract: 1,127,797. Transistor amplifiers. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 17 March, 1966 [20 March, 1965], No. 11696/66. Heading H3T. In an amplifier, particularly for telephone systems, a first signal is derived from a first winding 10 of an -input transformer 5 and supplied to the control electrode of an input amplifier element 1, the common electrode (emitter) of which is connected to a frequency dependent impedance 8 provided with a negative feedback voltage (through impedance 9), the first winding 10 is shunted by an inductor 11 and a resistor 12 in series, and a second signal of lesser voltage than the first is derived from input transformer 5 and supplied to the common electrode of element 1 through a resistor 14 and a capacitor 15 in series. The frequency dependent negative feedback supplied to the emitter electrode of element 1 by means of impedances 9 and 8 is such as to equalize the frequency dependent attenuation of input and output cables 3, 4, and suppress signal distortion. Resistor 12 is of such value as to provide the correct termination impedance for cable 3 at low frequencies. At high frequencies, the impedance of inductor 11 is high and the cable termination impedance is determined mainly by resistor 14. Because of the turns ratio of windings 10, 13, resistor 14 is less than resistor 12 and so generates less noise at high frequencies than would resistor 12 if inductor 11 were absent and thus resistor 12 determines the termination impedance. The inclusion of a capacitor 17 and an inductor 18, as shown, chosen so that the resonant frequencies of paths 11, 17 and 15, 18 are equal and just above the upper frequency of the signal band processed, is advantageous. The amplifier elements 1 ... 2 may be junction or field-effect transistors, or tubes.
Patent GB-715121-A (GB)
Title: Improvements relating to electric circuit interruptors having arc-extinguishing arrangements
Inventor: REECE MICHAEL PETER
IPC: H01H9/34
Filed: 1951-05-18
Abstract: 715,121. Arc-rupturing in switches. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION: April 23, 1952 [May 18, 1951; Dec. 13, 1951], Nos. 11712/51 and 29232/51. Class 38(5) The circuit-breaker comprises a number of partitions 2 at right angles to the line joining the contacts (not shown) and forming cells a, each of which contains arc horns 10 arranged to produce helical arc sections in planes parallel to the partitions. The horns 10 comprise members bent as shown so as to diverge from the top of a V-notch 8 in the partitions and twisted so that parts 13 are parallel to the partitions. The horns on opposite sides of a partition are brazed together at the extreme ends of parts 11 thereof, the remainder of said parts 11 being separated by insulation 12. Each cell contains arc splitters 16 having V-notches 19 and formed of steel or gas-evolving material, and has a chimney 21 containing cooling plates 22. The  vents 25 from adjacent cells, which are bolted together at 4, are directed in opposite directions, and the chimneys are removable for replacement or repair, Fig. 5. The upper ends of splitters 16 are coated with enamel 20 to prevent the arc from reaching their extreme ends, and the ends 13 of the horns are extended at 15 alongside the splitters 16. According to the first Provisional Specification the horns may be in one piece instead of two.
Patent GB-731570-A (GB)
Title: Improvements in and relating to the control of electric motors
IPC: H02P23/00
Filed: 1953-04-28
Abstract: 731,570. Control of A.C. motors. GENERAL ELECTRIC CO. April 28, 1953 [May 7, 1952], No. 11716/53. Class 38 (3). A single-phase motor has a running winding 2 and a starting winding 3 which is connected in series with a capacitor 5, the motor being reversed by means of a switch 22. When the reversing switch is moved to engage contact 13, a circuit is completed through the coil of relay 9, a speed-responsive switch 17, and the starting winding. Relay 9 then closes contacts 37, 38, so that the running winding is energized through contacts 28, 29, and the motor starts and accelerates. Opening of the switch 17 disconnects the starting winding, but the energization of the relay 9 is continued by the current in the running winding. To reverse the motor, the switch 22 is moved to engage contactl4, whereupon the relay 9 is de-energized and the motor windings 2, 3 are connected in a loop circuit for braking. The braking circuit is opened by the switch 17 when the motor speed falls to a low value, the relay 10 and the starting winding being energized by the same movement of the speed-responsive switch. The running winding is then energized in the opposite sense and the motor accelerates in the reverse direction. Different arrangements of the contacts of the relays 9 and 10 are described, Figs. 2, 3 (not shown). Specification 697,597 is referred to.
Patent GB-962753-A (GB)
Title: Improvements relating to sectional hot-water boilers
IPC: F24H1/32
Filed: 1961-03-30
Abstract: 962,753. Sectional boilers. O. WALTER. March 30, 1961 [March 31, 1960], No. 11767/61. Heading F4A. In an arrangement for the uniform distribution of water into a hot-water boiler comprising flat vertical sections 2, a distributer pipe 1 which forms the extension of the return pipe 4 extends along the top of the boiler in the top row of nipples 3 and is closed at a point a short distance from the flow pipe 6. Return water passes through openings 8 in the pipe 1 and down flow passages 7, displacing water downwardly against the thermal lift to produce considerable turbulence along the heated boiler walls and intimate mixing of the return water and the boiler water. In a modification the distributer pipe is divided into two unequal sections by a longitudinal horizontal wall, the lower and upper sections having openings to the chamber which serve respectively as return water outlets and steam and hot water inlets. In a further modification the end of the distributer pipe adjacent the flow tube 6 is open, water flow therethrough directly into the flow pipe being controlled by a throttle. Water is fed into the distributer pipe by means of a slotted pipe located coaxially there within. In a further modification the distributer pipe is formed of a number of sections each connecting adjacent nipples.
Patent GB-271236-A (GB)
Title: Improved process for stabilising hydrocyanic acid
IPC: C01C3/06
Filed: 1926-05-05
Abstract: 271,236. Deutsche Goldund Silber- Scheideanstalt vorm. Roessler, and Kerschbaum, F. May 5, 1926. Fumigants. - In the stabilization of hydrocyanic acid bv admixture with an absorbent such as diatomite, infusorial earth, kieselguhr, &c., the latter before use is freed from objectionable basic substances such as calcium sulphide, carbonate or oxide by pretreatment with an acid such as sulphuric or hydrochloric acid, an acid salt such as sodium bisulphate or an acid derivative, such as an ester of chloracetic acid, ethyl sulphuryl chloride, or the methyl ester of chlorocarbonic acid. Certain of the esters have a stabilizing effect on the hydrocyanic acid or are irritants and serve as warning substances. The absorbent may be treated when in the natural state or after roasting, and an excess of acid over that theoretically needed may be used, or any excess may be washed out. Instead of, or in addition to, being subjected to the acid treatment, the absorbent may be so treated as to contain a large amount of oxygen, as by blowing air through the heated absorbent during roasting. The treated absorbent may be allowed to absorb the maximum quantity of hydrocyanic acid, or larger amounts of the acid may bs mixed with the absorbent. Irritant and warning substances, e.g. chlor-picrin or cyanogen chloride, may be added to the acid or to the mixture of acid and absorbent. Specifications 230,346 and 232,834, [Class 1 (ii), Inorganic compounds, other than &c.], are referred to.
Patent GB-119257-A (GB)
Title: A New or Improved Machine for Printing upon Small Articles.
Inventor: BIDDLECOMBE FRANK GUY LANG
IPC: B65C9/02
Filed: 1917-08-17
Abstract: 119,257. Biddlecombe, F. G. L. Aug. 17, 1917. Ink-ribbon mechanism.-In a machine for printing on small articles, such as cylindrical packets of explosive, the die 4, which is mounted on a rocker 5 pivoted on brackets 17 is inked by an ink-ribbon 31 carried by two spools 26 mounted on a yoke 28 pivoted at 30 to a support 29 on the roller 5 so that the ribbon and its support rise and fall with the rocker. The spools are turned at each rising movement of the rocker by ratchet wheels 26 engaging spring pawls 34 carried by stationary brackets 33, and the yoke 28 is held to one side of the vertical so that one only of the spools is actuated at a time. The reversal of the position of the yoke 28 to effect the reversal of the ribbon feed, is effected by pivoted blades 35 held by springs 37 in contact with the ribbon on the spools, and fixed abutments 38 are secured at a level slightly lower than that reached by the higher of the two blades 35 when the rocker 5 rises. This blade 35 is, however, kept clear of the abutment 38 until the ribbon is unwound to the desired extent, when the blade then engages the abutment and reverses the yoke 28. A spring pressed ball mounted in a casing 40 engages one side or the other of a knife edge 39 on the yoke to hold it in either of its working positions.
Patent GB-1488228-A (GB)
Title: Method of making a solid electrolyte capacitor
IPC: H01G9/032
Filed: 1976-03-24
Abstract: 1488228 Electrolytic capacitors SPRAGUE ELECTRIC CO 24 March 1976 [21 April 1975] 11879/76 Heading H1M A method of manufacturing a solid electrolytic capacitor comprises impregnating an anodized valve metal pellet with a manganese salt solution and pyrolysing to form a layer of manganese dioxide, applying to the coated pellet a coating of a thixotropic mixture comprising a manganese salt solution and finely divided solid particles, immersing the coated pellet while wet into a fluidized bed containing coarse manganese dioxide particles of average size greater than 30 microns, heating the coated pellet to pyrolyse the manganese salt to manganese dioxide, the coarse manganese dioxide particles providing a rough surface for bonding to a counter-electrode layer. The finely divided solid particles may be colloidal manganese dioxide optionally mixed with colloidal silica. The wet coated pellet for immersion in the fluidized bed may have been partially dried, or submitted to pyrolysis then rewetted with manganese salt solution.
Patent GB-403853-A (GB)
Title: Improvements in door supports
IPC: E05F7/04
Filed: 1933-04-24
Abstract: 403,853. Door-stops. SCHONITZER, R. I., 915, East 7th Street, Auburn, Indiana, U.S.A. April 24, 1933, No. 11890. Convention date, April 22, 1932. [Class 65 (i).] In vehicle doors automatically operable, wedging means is provided to prevent vertical play of the door when closed, whereby the strain upon the door hinges is relieved and rattling prevented. The bottom of the door and the body sill are provided with co-operating wedge members 16, 17 to prevent sagging and to relieve the hinges when the door is shut. The top of the door is similarly provided with a fixed rigid wedge member 28 while the roof sill is provided with a resiliently movable co-operating wedge member 20 mounted in a dove-tail manner in a guide block 24, springs 23 mounted as shown on guide rods 22 urging the member 20 towards the flange 24<1>. The usual buffer stops are provided. A recess may be provided in the member 20 to contain wick and oil for lubricating purposes.
Patent GB-120034-A (GB)
Title: Improvements in the Production of Ammonia from Cyanamide.
IPC: C01C1/08
Filed: 1918-07-23
Abstract: 120,034. Norsk Hydro - Elektrisk Kvaelstofaktieselskab. Oct. 4, 1917, [Convention date]. Ammonia.-In the production of ammonia by saponifying cyanamide with an aqueous solution of sodium carbonate, the water used is preheated to at least 40‹ C. before it is brought into contact with the cyanamide. Considerably less sodium carbonate is then necessary to effect the saponification.
Patent GB-418451-A (GB)
Title: Improvements relating to steam and like valves
IPC: F16K1/42
Filed: 1933-04-25
Abstract: 418,451. Valves; jointing. HOPKINSONS, Ltd., BROWN, R. L., and SEWELL, G., Britannia Works, Huddersfield. April 25, 1933, Nos. 12004 and 19615. [Class 135.] In securing a facing a in the seat b of a steam &c. valve, where the seat is of such smaller size that the facing can be inserted when at a lower temperature (as when cooled by liquid air &c.) being firmly held when the temperatures equalize, one of the meeting surfaces, c or b<1>, of the seat or facing is provided with serrations which bite into the corresponding meeting surface of the facing or seat. The facing and the seat may be tapered and the degrees of taper may differ in such a way as to set up the greatest stress at the innermost surface. The peripheral faces may be partly cylindrical and partly sharply tapered to cause an inward wedging action.
Patent GB-327586-A (GB)
Title: Improvements in and relating to rotary compressors
IPC: F04C29/02
Filed: 1929-04-18
Abstract: 327,586. Smith, S. April 18, 1929. Fixed-abutment type; packing drums, vanes, abutments, and the like.-Oil is supplied from a reservoir under the delivery passage to a rotary compressor of the eccentric rotor and radially sliding vane type through jet orifices in the rotor at predetermined intervals of rotation of the rotor. The oil is forced, under the discharge pressure, from a separating chamber 2 through a pipe 29 to a duct 28 in a spigot 14 of a casing end cover 9 with which a duct 30 in the rotor periodically registers whereby the oil passes into the working space and to the parts to be lubricated. Spacer loops 22 encircling the rotor shaft and situated in recesses 19 in the rotor ends maintain diametrically opposite vanes 21 apart and have pins 24 bearing on springs housed in the vanes.
Patent GB-215565-A (GB)
Title: Improvements in and relating to incandescent gas burners
IPC: F23D14/48
Filed: 1923-05-04
Abstract: 215,565. Raybould, A., and Lewis, G. M. May 4, 1923. Incandescent gas burners.-A hit-and-miss airregulating sleeve a is provided with a notch, which engages parallel portions m of a wire operating- arm, the split loop n of which engages an annular groove i in a tubular mixing-chamber d of an inverted burner. The outer loop k of the arm may he provided with a fibre or other disc p. The mixing-chamber d is preferably formed integral with a mixing-tube e terminating in a screwed spigot f, which is passed through an aperture in a canopy or globe holder g and screwed into a union h, the end of the spigot below the internal screw-threaded part of the union being expanded to lock the parts in position. The union is externally screw-threaded for the attachment of the burner tube.
Patent GB-1457962-A (GB)
Title: Method of epitaxially depositing a semi-conductor material on a substrate
IPC: H01L33/00
Filed: 1974-03-19
Abstract: 1457962 Epitaxial deposition R C A CORPORATION 19 March 1974 [22 March 1973] 12033/74 Heading B1S An epitaxial layer of a single crystal semiconductor material is deposited on a substrate. wherein there is a substantial lattice resinated between the materials of the layer and the substrate, by roughening a surface of the substrate sufficiently to introduce crystalline dislocations or work damage near the surface but not to cause substantial non-uniformity in the general planarity of the surface, plaining the roughened surface of the substrate in contact with a solution of the semiconductor material dissolved in a molten solvent, cooling the solution to deposit some of the semiconductor material from the solution onto the roughened surface of the substrate and separating the substrate with the layer of semiconductor material thereon from the solution. The deposition on a roughened surface is most suitable when the lattice mismatch between the material of the substrate and the semiconiductor material is >0.3%. Pairs of materials which have lattice mismatches of >0.3% and at least one of which can be deposited by liquid phase epitaxy are GaAs/GaP; InGaAs/GaAs; InAsP/InP; AlGaAs/GaP. Substantially smooth and uniform epitaxial layers can be deposited over all the roughened surface of the substrate due to the increased number of nucleation sites to allow growth of the single crystal epitaxial layer. Suitable roughening comprises rubbing with sand paper, sand blasting or lapping with abrasive.
Patent GB-744543-A (GB)
Title: Improvements in and relating to the production of cyclohexa-1,4-diene-1,4-dicarboxylic acid and esters thereof
Inventor: SMITH PETER
Filed: 1953-05-01
Abstract: Cyclohexa - 1 : 4 - diene - 1 : 4 - dicarboxylic acid or acid esters or di-esters thereof are prepared by heating at a temperature of at least 150 DEG  C. cyclohexane - 2 : 5 - diol - 1 : 4-dicarboxylic acid or acid esters or di-esters thereof, containing, in solution, at least 0.01 per cent by weight, based on the amount of acid or acid-ester or di-ester, of a di-alkali metal salt of cyclohexane-2 : 5-diol-1 : 4-dicarboxylic acid.  The preferred salt is the di-sodium salt, and in an amount of 1 to 5 per cent.  The solution of alkali metal salt may be obtained by addition of the requisite amount of alkali metal hydroxide to the cyclohexane-2 : 5-diol-1 : 4-dicarboxylic acid or ester.  The formation of lactones, such as 4-carbomethoxy-2-hydroxy - 6 - oxa - bicyclo - [3 : 2 : 1] - octa-7-one, which is formed when the dimethyl ester is reacted, is diminished by working in a solvent such as water or an aliphatic alcohol containing up to four carbon atoms.  The alcohol which corresponds to the ester employed is preferred.  When a diester is used as starting material and the process is carried out in the absence of a solvent or in the presence of water, both acid ester and acid are present in the product.  The temperature used is below the critical temperature of the solvent if one is employed, and sufficient pressure is applied to maintain the solvent in the liquid phase.  In examples (1) a solution of dimethyl cyclohexane - 2:5 - diol - 1:4 - dicarboxylate in methanol containing approximately 0.25 per cent of the disodium salt was heated in an autoclave for 24 hours at 200 DEG  C. and the corresponding unsaturated di-ester isolated; (2) as in (1) but using approximately 2.5 per cent of di-sodium salt; (3) the diethyl ester dissolved in ethanol, was reacted with sodium hydroxide and heated as in (1) for 36 hours, the corresponding diethyl ester being obtained.  Specification 740,388 is referred to.
Patent GB-1184427-A (GB)
Title: Improvements in or relating to Arc Glass Heaters
IPC: H05H1/32
Filed: 1967-03-15
Abstract: 1,184,427. Electric arc gas heaters. UNION CARBIDE CORP. 15 March, 1967 [16 March, 1966], No. 12106/67. Heading H5H. In an electric arc gas heater comprising a cylindrical chamber 16, a nozzle anode 10 at one end of the chamber and a button cathode 18 at the other end of the chamber, gas to be heated is introduced to said chamber via inlets 24 in the anode which are arranged to impart a swirling gas flow in the chamber. The nozzle anode 10 has a constricting orifice 11 for increasing arc chamber pressure. The gas is stated to swirl along the inner surface of the chamber until it strikes the end wall 19 whereupon the flow reverses and swirls toward and through the nozzle anode in an area close to and surrounding the arc 20. The copper body 12 and anode 10 are water cooled. If an oxidizing gas is being heated the cathode 18 is made of zirconium, lanthanum, thorium or strontium. With an inert gas, e.g. argon, the oxide of the metal forms the cathode. Also a thoria-containing tungsten button may be used with inert gas. The anode may be of copper with a tungsten insert when using inert gas.
Patent GB-512168-A (GB)
Title: Fixing socket for use with building structures of cement, concrete, or similar materials
IPC: E04B1/41
Filed: 1938-04-22
Abstract: 512,168. Screw sockets. WATT, G., and ROBERTS, A. CROMPTON-. April 22, 1938, No. 12110. [Class 89 (i)] In connection with cement or concrete construction, a securing member for supporting articles, comprises as shown in Fig. 1 a tube or the like closed at 11 and open only at an end 13 in which is a removable closure such as a grub screw. Spikes such as 14 are secured to the member by welding and serve to position the member by driving into the shuttering. The tube is threaded to serve as a socket and such thread takes the grub screw which serves as a mask against the cement during pouring. The tube may be flanged and provided thereat with apertures for nails to pass through into the wood. In a modification shown in Fig. 5 a nut 18 is secured in an envelope 20 pressed from a metal blank, and in Fig. 7. a nut 23 is secured in a member 26 made from strip metal. In a further modification for self tapping screws the nut is dispensed with and a flanged aperture made in the sheet metal member.
Patent GB-1249387-A (GB)
Title: Improvements in or relating to screens
Inventor: BRANT VICTOR GEORGE
IPC: E06B9/01
Filed: 1969-03-07
Abstract: 1,249,387. Plant supports. V. G. BRANT. 3 March, 1970 [7 March, 1969], No. 12122/69. Heading A1E. [Also in Divisions A4, El and E2]  An aluminium element for building up ornamental walls, glazed screens, wire racks or plant supports comprises a pair of bars 1 with a socket 4 formed at their apex, which is the apex of an equilateral or isoceles triangle, and a pair of strip like lugs 3 at their opposite ends, which are the other corners of the triangle, each socket being twice the size of a lug. In building up a structure two lugs are engaged in each socket and a pin passed through mating holes therein. The pin may the coated with adhesive. The structure may be surrounded by a rectangular frame, the edge members being cut in half and screwed to the frame. In the construction of a wine rack, two structures are interconnected in spaced parallel relationship (Fig. 5) by rods engaged through the lugs 3 and sockets 4 and support plates slid into grooves in the facing edges of the bars 1. In a glazed screen the bars are rabetted to receive the glass.