baber/WOPTO huggingface dataset:
Patent GB-1307655-A (GB)
Title: Television systems
IPC: H04N7/087
Filed: 1971-04-19
Abstract: 1307655 Multiplex radio signalling INTERNATIONAL STANDARD ELECTRIC CORP 19 April 1971 [16 April 1970] 26303/71 Addition to 1306467 Heading H4L The TV system disclosed in the parent Specification is modified in that an additional synchronizing signal relating to the timecompressed audio signal or signals is transmitted during the period between the end of each frame and the start of the next frame together with the corresponding audio signals and is used at the receiver to select and store at least one of the time-compressed audio signals. As shown in Fig. 2, this synchronizing signal 12 is transmitted between post-equalizing pulses 11 following the frame sync. pulses 10 in the frame blanking interval and first and second audio signals 14, 15 are transmitted during the sweep period of lines following the line sync. pulses 13 in the frame blanking interval. At the receiver, Fig. 1, the incoming signal is fed to a phase comparator 2 which receives a comparison signal from an oscillator 3. The output of the comparator is supplied via a switch 6, which is closed only during the transmission of the additional sync. signal, and filter RC to control the frequency of oscillator 3 the output of the oscillator being frequencymultiplied at 4 to sample the time-compressed audio signals for feeding to a store from which they will be read out at a slow rate. A switch 7 is operated by integrated frame sync. pulses (16, Fig. 2) to connect a circuit 8 tuned to the frequency of the sync. signal 12 and the output of circuit 8 is rectified at 9 to operate switch 6 which operates at level 17, Fig. 2.
Patent GB-1299697-A (GB)
Title: Valve actuation mechanism
IPC: F01L1/047
Filed: 1971-04-19
Abstract: 1299697 I C engine valve gear; induction systems FORD MOTOR CO 19 April 1971 [30 April 1970] 26426/71 Heading F1B An I.C. engine comprises means transferring motion from a camshaft to intake and exhaust valves including a pair of reciprocable pushrods 48, 50, Fig.2, having axes crossed intermediate their respective opposite ends when viewed in side elevation. The minimum spacing between push-rods is arranged adjacent the intake passages 22 of adjacent cylinders.
Patent GB-1429084-A (GB)
Title: Multiple compressor refrigeration system
IPC: F04B39/12
Filed: 1973-06-04
Abstract: 1429084 Compressors WESTINGHOUSE ELECTRIC CORP 4 June 1973 [19 June 1972] 26450/73 Heading F1N [Also in Division F4] A multiple refrigerant-compressor system comprises first and second hermetic-shell type compressors 1, 2; the first compressor 1 being adapted to run continuously and the second to be cycled on and off. The system also includes suction line inlets 12, 15 for the compressors, each inlet having a filter 13, 16 with the inlet 15 extending from within the shell of first compressor 1; high pressure discharge outlets 18, 21 for the compressors connected in parallel; and an oil equalizing conduit 30 communicating with the shells of the two compressors. The conduit 30 is disposed at a height corresponding to the minimum oil level desired in the first compressor when both compressors are running. When the second compressor is not running, a heater 40 is used to heat the oil and drive off entrained refrigerant. When the system is operating at full capacity with both compressors 1 and 2 running, suction gas for the compressor 1 is drawn through conduit 12 while suction gas for the compressor 2 is drawn through both conduits 12 and 15. At reduced capacity, the compressor 2 is cycled off. In this case, the suction gas is drawn through conduit 12 only, there being no flow of suction gas through conduit 15.
Patent GB-169993-A (GB)
Title: Improvements relating to the generation of steam or vapour and to the utilisation thereof for power purposes
IPC: F22B1/20
Filed: 1921-10-06
Abstract: 169,993. Marguerre, F., and Hausmann, M. Oct. 9, 1920, [Convention date]. Addition to 167,763. Vapour engines. - In the process for storing energy described in the parent Specification, only a portion of the exhaust from the turbine h is conducted into the liquid receptacle v, the remainder being conducted into a soda-lye receptacle r serving to heat the boiler s. During the storage period, vapour is drawn by the compressor g from both the liquid receptacle and the soda-lye receptacle, the compressed vapour being fed into the boiler. The supply and the delivery of the vapour to and from the receptacles may be controlled by cocks operated in accordance with the temperatures or pressures in the receptacles. Vapour may be withdrawn from the liquid receptacle for driving a turbine or for heating liquids.
Patent GB-1099288-A (GB)
Title: Improvements in or relating to the refining of metals
Inventor: DERHAM LESLIE JACK
IPC: C22B19/32
Filed: 1965-06-22
Abstract: A method for purifying zinc comprises supplying the molten impure zinc to the top of a stationary packed column, supplying electro-thermic heat to the metal film by means of electrodes at the top and bottom of the column and passing the zinc vapour to the condenser via a reflux column made of a refractory material such as silicon carbide.
Patent GB-1517649-A (GB)
Title: Field emission cathode and method of preparation thereof
IPC: H01J9/12
Filed: 1976-06-25
Abstract: 1517649 Field emission cathodes HITACHI Ltd 25 June 1976 [27 June 1975 24 March 1976 2 April 1976] 26498/76 Heading H1D A field emission cathode has a needle-shaped cathode tip 8 composed of vitreous carbon. The tip 8 is mounted on a base 9 composed, preferably, of a strip or rod of conductive carbon having a specific resistance of 10<SP>-3</SP> ohm cm., or of tungsten, tantalum, rhenium, titanium or zirconium. The needle-shaped cathode tip may be formed by shaping into the form of a tip a vitrous carbon raw material, e.g. a furan resin, a phenolic resin, a pyrrole resin or a vinyl resin derived from divinyl benzene, and carbonizing the cured and shaped resin in a vacuum or inert gas atmosphere. The carbonizing is effected by raising the temperature at specific rates over certain temperature ranges, and the tip is finally etched, e.g. by flame etching, to produce a tip radius of 1000 to 3000 Angstrom. The cathode is capable of stable operation under relatively low vacuum, e.g. at pressures up to 3 Î 10<SP>-7</SP> Torr, and its performance can be even further improved if the cathode tip is operated at an elevated temperature, e.g. 950 C. The characteristics and performance of such a cathode is discussed.
Patent GB-932677-A (GB)
Title: Method for the simultaneous stabilisation and drying of wood
IPC: F26B5/00
Filed: 1961-07-21
Abstract: Prior to hot pressing of wood in a method of simultaneous drying and stabilization, the wood is subjected to processes which may include boiling in water or steaming, or adsorbing ammonia in quantities of 1 to 3% by weight, or treated with an aldehyde, e.g. formaldehyde, in the presence of an acid in a kiln at a temperature of 110 DEG -150 DEG C.
Patent GB-535028-A (GB)
Title: Improvements in and relating to kilns for the production of wood charcoal
Filed: 1939-09-25
Abstract: 535,028. Charcoal kilns. GOLIGHTLY, H. H. Sept. 25, 1939, No. 26614. [Class 55(i)] Sections 1, 2 are erected one above the other, the upper section resting with its lower edges in flanges 7 on the interior of the lower section, and a rim depending from the lid 9 resting in similar flanges on the inside of the upper section. The lowest section rests on feet 4 at the corners, and is provided with a re-inforcing strip 3 spaced from the ground. The lower section 1 is further stiffened by lengths of angle iron 5 which are bolted near their centres as at 6, and slide in metal clips 19 bolted to the walls. Outlet holes 10 in the end walls permit the passage of combustion products to detachable flues 11 and a chimney 14, the draught in which is controlled by a damper 16. Hooks 15 retain the flues in position. Sand is filled into the channels 7 to provide an air-tight seal, and, when burning of the charge is completed with air entering below the strip 3, the flues are removed, the holes 10 stopped up, and the air space below the strip and the ground closed with earth.
Patent GB-303780-A (GB)
Title: Improvements in or relating to the insertion of metallic fasteners in boot or shoe manufacture or repair
IPC: A43D69/02
Filed: 1927-10-08
Abstract: 303,780. British United Shoe Machinery Co., Ltd., and Roberts, W. T. B. Oct. 8, 1927. Loose-nailing.-A machine for inserting metallic fasteners in boots, particularly Cutlan Bills of smaller dimensions than those ordinarily used, comprises a driver designed to have an initial downward movement prior to its driving stroke in order to hold back the nails arranged in their raceway, a driver passage having a part designed tc yield if a nail is improperly placed for driving, means acting on the foremost nails in the raceway to position them suitably for the action of a separator and the driver, and a particular cam orgnization for affecting the relative movements of the driver and separator. As shown, the raceway 2, Fig. 4, which bends near its outlet through a right angle, has, working across its outlet, a wedge-shaped separator 3 connected by screws 8, 9 to an actuating slide 10. The latter is operated through lugs 14, 15 by a bell-crank lever 11 and a lever 18 mounted as usual in the machine head. The separator lever 18 and a lifting block for the spring-operated driver 22 are respectively controlled by cams which are so designed that the driver normally acts as a stop at the outlet of the nail raceway, the separator being out of the way. The separator has a quick forward movement to separate the end-most nail, at which time the driver is lifted. The separator is then moved out of the way, the driver being given a small downward movement to bring it in front of the raceway outlet. The separator having moved clear, the driver then makes its driving stroke, acting at this time as a stop for the outlet. The separator 3 has an outwardly-bevelled extension 26 which at all times lies beneath, and forms a bottom closure for, the space across which a nail is moved by the separator. The bevel serves to tilt across the driver path the point of the separated nail. The portion of the driver throat 33 at the level of the raceway outlet is closed by a hinged door 34 held closed by a spring plunger 35, so that it can yield for a nail jammed in the throat. The driver throat proper 36 also has a spring-held side 37. A member 50 pivoted to the raceway has an end 52 arranged above the two end nails in the raceway, Fig. 6, and provided with two inclined facets divided by a ridge 56. The member 50 is supported by a projection on the separator slide 10 that is raised as the separator is moved clear of the raceway, but is lowered by a spring 53 as the separator moves forward so that the facets engage the heads of the two end nails and tilt their shanks apart, facilitating the entry of the separator between them. Specification 1494/93, 14539/08, 29322/09, 136,014, 194,373 and 265,298 are referred to.
Patent GB-1016495-A (GB)
Title: Improvements in or relating to the catalytic conversion of hydrogen chloride to chlorine and the catalytic chlorination of hydrocarbons
IPC: B01J21/08
Filed: 1962-07-11
Abstract: Chlorinated aliphatic hydrocarbons are produced by passing the hydrocarbon, HCl and O2 or free O2-containing gas at 200-500 DEG  C. over a catalyst comprising copper oxide and/or iron oxide combined with at least one of the oxides: P2O5, TiO2, SiO2, B2O3, MoO3, V2O5, WO3, UO3, As2O3; and at least one of the oxides: BeO, PbO, MgO, CaO, ZnO, SrO, CdO, BaO, Al2O3, SnO, Bi2O3, Sb2O3, Cr2O3, MnO, CaO, NiO, Ce2O3, La2O3; the combination of oxides being formed by wet gelling followed by drying and calcination.  The catalyst can be used as such, or supported on a porous inert carrier, e.g. "Celite" Trade Mark), pumice, or silicon carbide; and is employed in fixed or fluidized bed.  In the examples, the chlorination of methane to methyl chloride, methylene dichloride, chloroform and carbon tetrachloride; of ethane to ethyl chloride, 1,2-dichloroethane, 1,1-dichloroethane, and trichloroethane; and of ethylene to 1,2-dichloroethane, 1,1-dichloroethane, and trichloroethanes, are described; and solutions of Na silicate, Al(NO3)3, CuCl2, (NH4)2HPO4, MgCl2, and Fe(NO3)3\t are used as sources of the oxides.ALSO:Cl2 is produced by passing HCl and O2 or free-O2-containing gas at 200-500 DEG  C. over a catalyst comprising copper oxide and/or iron oxide combined with at least one of the oxides: P2O5, TiO2, SiO2, B2O3, MoO3, V2O5, WO3, UO3, As2O3; and at least one of the oxides: BeO, PbO, MgO, CaO, CnO, SrO, CdO, BaO, Al2O3, SnO, Bi2O3, Sb2O3, Cr2O3, MnO, CoO, NiO, Cl2O3, La2O3; the combination of oxides being formed by wet gelling followed by drying and calcination.  The catalyst can be used as such, or supported on a porous inert carrier, e.g. "celite" (T.M.) pumice, or silicon carbide; and is employed in fixed or fluidized bed.  In the examples, solution of Na silicate, Al(NO3)3, CuCl2, (NH4)2HPO4, MgCl2, and Fe(NO3)3 are used as sources of the oxides.
Patent GB-1194593-A (GB)
Title: A Process for the Production of Fibrous Polyoxymethylenes
IPC: C08G2/00
Filed: 1967-06-09
Abstract: 1,194,593. Preparing fibrous polyoxymethylene. DEUTSCHE GOLDUND SILBERSCHEIDEANSTALT. 9 June, 1967 [10 June, 1966], No. 26721/67. Heading C3P. Fibrous polyoxymethylene is obtained by the cationic polymerization of trioxan, the process comprising (i) mixing molten trioxan with the catalyst, (ii) chilling the resulting mixture to a temperature below the melting-point of the trioxan before the onset of polymerization, (iii) polymerizing the resulting completely crystallized trioxan mixture by raising the temperature to a temperature below the melting- point of trioxan and (iv) removing the residual monomeric components. Boron trifluoride etherates are the preferred cationic catalysts, BF 3 -(CH 3 ) 2 O being exemplified. The process may be conducted using a thin layer technique in a plastics tube, and may be conducted batchwise or continuously.
Patent GB-151927-A (GB)
Title: Improvements in removable hoods for vehicles
IPC: B60J7/12
Filed: 1920-09-18
Abstract: 151,927. Soc. Anon. des Aeroplanes G. Voisin. Sept. 29, 1919, [Convention date] Hoods.-In a removable hood for vehicles comprising two vertical telescoping uprights or supporting-members N situated in the longitudinal axis of the vehicle and carrying cross-arms for supporting a removable canvas covering, the cross-arms 3, 3<a> are rigidly secured to the uprights and are of curved shape to correspond with the edges of the body on which they rest when lowered. The front of the covering 1 is secured to the frame 2 of the wind-shield and the other sides to the body of the vehicle. Each support N is adapted to telescope into a tubular socket M concealed within the lining of the body, and may be locked in the upper and lower portions by a spring bolt q with an operating lever r. The rear upright N may have a telescoping extension N' to enable it to maintain the top of the hood horizontal, the height of the body at this part, and therefore of the rear tube M, being less than at the first upright. The canvas covering 1 when removed is folded or rolled up and stowed at 1<1> or elsewhere.
Patent GB-693353-A (GB)
Title: Process for the preparation of 2-aminoquinoxalines
Filed: 1949-10-19
Abstract: 2-Aminoquinoxaline compounds of formula: <FORM:0693353/IV (b)/1> where R1 and R2 are hydrogen, halogen, alkyl or alkoxy, are prepared by treating the N-(o-aminophenyl) glycine nitrile <FORM:0693353/IV (b)/2> with a methanolic solution of a strong base to cyclize it and then oxidizing the resultant 3 : 4-dihydroquinoxaline derivative. The above substituted glycine nitrile may be prepared by treating a 1 : 2 diaminobenzene with a haloacetonitrile, a mixture of formaldehyde and hydrogen cyanide, or glycolonitrile.  R1 and R2 may be chloro, methyl, ethyl, isopropyl, methoxy, ethoxy, or propoxy and examples are given of compounds with these substituents.  In the examples, o-phenylenediamine is treated with formaldehyde-bisulphite complex and hydrogen cyanide to give N-(o-aminophenyl) glycine nitrile (alternatively glycolonitrile or chloroacetonitrile are employed), and this nitrile is treated with sodium methoxide in methanol to give 2-amino-3 : 4-dihydroquinoxaline, which is oxidized under various conditions (e.g. with hydrogen peroxide) to afford 2-aminoquinoxaline.  In a similar way there are prepared 2-amino-methylquinoxalines, 2-aminochloroquinoxalines, and 2-amino-methoxyquinoxalines.
Patent GB-355963-A (GB)
Title: Improvements in or relating to gear cases
IPC: F16H57/029
Filed: 1930-09-09
Abstract: 355,963. Gear &c. casings. ROSE, A. G. and NORTHERN MANUFACTURING CO., Ltd., Albion Works, Gainsborough, Lincolnshire. Sept. 9, 1930, No. 26865. [Class 12 (ii).] In a gear or other casing 10, in which a shaft 13 extends through the side of the casing and is supported by a bearing 16 in a boss 22, a lubricant passage passes through the boss on the side of the bearing 16 remote from the casing interior, and between the passage and the casing exterior is an annular chamber 29 surrounding an oil thrower 31 and communicating by a drain hole 30 with the inside of the casing. As shown, the outer bearing race ring is held in place by a. sleeve 25 in which the chamber 29 is formed and the lubricant passage is formed by four openings 24 in the boss 22 and four openings 28 in the sleeve 25. A second oil thrower 33 is formed on. the shaft within the passage. The casing at the other end of the shaft is similarly formed except that the chamber 29 is omitted and the sleeve has. an end wall 32 closing the outer end of the boss.. In a modification the outer race ring of the bearing is mounted in the sleeve 25. The bearing sleeve 25 may be omitted and the oil throwing chamber 29 formed directly in the boss 22.
Patent GB-481378-A (GB)
Title: Improvements relating to the cooling of steam driven machinery
IPC: F01B31/08
Filed: 1936-10-03
Abstract: 481,378. Cooling systems for compressors. BELLISS & MORCOM, Ltd., and MASTERMAN, A. L. Oct. 3, 1936, No. 26873. [Class 29] Cooling-water circulating in a, closed cycle through a compressor a, Fig. 1, driven by a steam turbine b, is cooled by evaporation in vacuo in a vessel i, the vacuum being maintained by a steam ejector n discharging into the surface condenser h of the turbine. The condenser cooling-water is circulated by a pump f through tubes c of a surface cooler d for the water-vapour of the vessel i before it enters the condenser. Make - up water is supplied to the vessel i from the condensate pump p through a pipe r and float valve s. In the system shown in Fig. 2 the ejector n discharges into a jet condenser h for the turbine, and make-up water is supplied from the condensate of an auxiliary surface condenser t for the turbine. The cooler d is traversed by water on its way to the jet condenser.
Patent GB-318553-A (GB)
Title: Shock absorber for vehicles
IPC: F16F7/06
Filed: 1929-09-04
Abstract: 318,553. Masquelier, R. Sept. 5, 1928, [Convention date]. Addition to 288,108. Vibration-dampers. - The apparatus described in the parent Specification may be modified by the employment of two cams acting in opposite directions or may be designed with a single cam and without any notches in the cam. In the construction shown in Fig. 2 the external member 13 is held against rotation in the casing and is contracted on to the cams by a spring 19, frictional material 12 being interposed between the relatively movable surfaces. When the central eccentric 7 is rotated in either direction, it forces one of the cams 16, 16' outwards until the lost motion between the projection 14 on the eccentric and the notch 15 in the cam is taken up when the eccentric and cam turn together, the frictional retardation remaining constant. The construction shown in Fig. 4 is intended to avoid notches in the cam. The central member 7 is partly semi-circular and partly eccentric, the semi-circular part being adapted to engage the frictional ring 12 with a constant pressure for movement in either direction while the eccentric part forces the cam 16 outwards during rotation in a clockwise direction until further relative rotary movement is prevented by the engagement of the end of the cam with shoulders on the eccentric. Elastic material 27 cushions and limits the movements of the cam.
Patent GB-781189-A (GB)
Title: Improvements in or relating to the construction of reinforced concrete slabs
Inventor: COPPEN FRANK
IPC: E04C5/06
Filed: 1954-09-16
Abstract: 781,189. Floors. TRUSSED CONCRETE STEEL CO., Ltd. Sept. 16, 1955 [Sept. 16, 1954], No. 26917/54. Class 20(4) In a reinforced concrete floor the top reinforcement includes hook-ended bars 13 laid across, and secured at their mid-points to, the top longitudinal reinforcing bars 6 of the beam the return hook ends 13<SP>1</SP> being secured to some of the bottom distribution bars 11. Straight bars 14 are placed between the hook bars and are also secured to the beam bars 6; the bars 14 are also secured to the top distribution bars 12 which are also secured to the hooked bars.
Patent GB-423489-A (GB)
Title: Improvements in or relating to the casting of articles to be hardened by nitrogenisation
IPC: C08J11/06
Filed: 1934-09-20
Abstract: In the preparation of iron-alloy castings adapted to be hardened by nitrogenization and containing up to 5 per cent of aluminium and preferably also up to 8 per cent of chromium, inclusions of aluminium oxide are removed by the addition to the molten alloy of solvents for aluminium oxide such as alkali or alkaline earth compounds, preferably fluorides or double fluorides.  The addition may be made in the ladle.
Patent GB-207938-A (GB)
Title: Improvements in chain saws
IPC: B27B33/14
Filed: 1922-10-06
Abstract: 207,938. Lind, A. Oct. 6, 1922. Saws; tree-felling.-A chain saw is made up of toothed links having hooked ends 8, 9 connected by pins 10, either directly, as shown in Fig. 3, or with alternate untoothed links 17, Fig. 6. Several slightly modified forms are shown, in one of which adjacent links are tongued and grooved, as shown in Fig. 16. The saw is particularly intended for use in a treefelling apparatus, in which the saw runs in a hollow frame 1 and is driven by a sprocket 6 with a suitable motor connection.