baber/WOPTO huggingface dataset:
Patent GB-407524-A (GB)
Title: Process for the direct compression of media in the form of gas or vapour with the aid of a medium which is in the form of a gas or vapour and has already been compressed
IPC: F02C5/12
Filed: 1933-03-01
Abstract: 407,524. Compressing air &c. HOLZWARTH, H., 7, Goethestrasse, Dusseldorf, Germany. March 1, 1933, Nos. 6250 and 6251. Convention dates, March 1, 1932, and Feb. 16, 1933. [Class 8 (i).] A combustible mixture exploded in a vessel 2, Fig. 1, forces the combustion products through a turbine &c. to a vessel 3 wherein it compresses air &c. admitted to the vessel, a plane separating layer being formed and maintained between the two gaseous bodies by the conical form of the combustion product inlet. The explosion chamber 2 is charged with air from the tank 4 through a valve 7 and fuel introduced and ignited. After the explosion, the valve 10 is opened and the gases passed to the nozzle 11 of a turbine 13, from which, after partial expansion, they enter chamber 3, compressing the air therein, which is already under slight pressure, and driving it through valve 14 in the tank 4. The valve 14 is closed and the valve 15 opens. The gases in the vessel 3 now pass to the turbine 18 together with gases from the explosion vessel. When the pressure in the chamber 3 falls to the pressure of scavenging air supplied by the rotary pump 5, the valve 10 of the explosion vessel is closed and valve 21 opened, by which the combustion products flow through pipe 22 to the turbine 18. When the pressure of the gases in the vessel 2 falls to the scavenging pressure, the valves 24, 25 are opened and air supplied to the chambers 2, 3, the remaining combustion products being driven through the turbine 18 ; the valves 15, 21, 24, 25 are closed and the cycle repeated. In the apparatus shown in Fig. 3, combustion takes place in a vessel 28 and the products pass into an eddy chamber 55 where their temperature rises and compress air in a vessel 29 lined with non-conducting material, the air being delivered by a valve 57 to the place of use, e.g. a blast furnace. The combustion products are exhausted through pipes 60, 65 to a heat exchanger 61 through which air from the rotary compressor 31 flows before entering the compression chamber 29 The vessels 28, 29 are cooled by water which evaporates in a boiler 34, the steam being further heated in a coil 48 by the combustion products and supplying the turbine 32 which drives the rotary compressors. The valves are actuated by oil under pressure produced by a pump 74. In a modification, the air passes through a heat exchanger wherein it is further heated after leaving the vessel 29. In a further modification, the finally compressed air is heated in Cowper furnaces, and the combustion products are supplied to a turbine which assists the steam engine in driving the compressors which supply scavenging air and precompressed air for the compression. The transfer of heat to the air in the compression chamber may be assisted by concentric tubes of heat resisting steels &c. in the chamber.
Patent GB-858991-A (GB)
Title: Improvements relating to nuclear fuel elements
IPC: G21C3/20
Filed: 1959-02-24
Abstract: 858,991. Nuclear fuel elements. GENERAL ELECTRIC CO. Feb. 24, 1959 [March 25, 1958], No. 6325/59. Drawings to Specification. Class 39(4). In a nuclear reactor fuel rod, fertile Th232 is incorporated with fissionable U233. With this material, conversion of fertile to fissionable isotopes occurs with neutrons above 10 e.v. and fission is effected by neutrons below 0À05 e.v.. In the embodiment, the fuel rod is surrounded by a shield which excludes from the rod those neutrons having energies between 0À05 and 10À00 e.v. This reduces the formation of Pa234 from Pa 233, the required reaction being the formation of Th233 from Th232 by neutron capture, Th233 to Pa233 by #-decay, and Pa233 to U233. The formation of Pa234 reduces the neutron flux density. The shield material may be a mixture of plutonium isotopes or U238 from which the plutonium isotopes are produced. The fuel rod may be formed either of a sintered material or a slurry.
Patent GB-112569-A (GB)
Title: Improved Mechanism for Disengaging the Main Governor in Steam Engines, more particularly Hoisting Engines.
IPC: B66B1/12
Filed: 1917-05-04
Abstract: 112,569. Schneider et Cie. Jan. 13, 1917, [Converation date]. Transmitting-mechanism.- Apparatus for disconnecting, during running, the governor sleeve G from the valve-gear A, B, C, D, E of a steamengine, such as a hoisting- engine, comprises a coupling between two links H, F, connected respectively to the governor sleeve and the valvegear. The coupling is arranged to be opened by hand or mechanically by means of a device, the operation of which produces at the same time the return of the link F into a locked position corresponding to the low-ball position of the governor. The coupling may consist of a shaft I carrying a lever L connected to the rod H and a lever K connected to the link F. A stirrup M<1>, M, M' is adapted to be raised by hand or by a piston P actuated by fluid pressure so as to disengage the fork H' from the lever L and to swing over the levers L, K by contact between the part M and arm N. Connexion is made again while the engine is stopped by connecting the fluidpressure cylinder O to exhaust, so that the weight P<1> draws down the stirrup.
Patent GB-755256-A (GB)
Title: Improvements in and relating to stabilizing control-surfaces for vehicles, particularly for ships and aircraft
IPC: B64C1/00
Filed: 1954-03-04
Abstract: 755,256. Controlling aircraft and ships. SOC. CIVILE ECA. March 4, 1954 [March 31, 1953], No. 6408/54. Classes 4 and 114. A self-stabilizing control for ships and aircraft of the kind comprising a main surface pivotally mounted on the body, an auxiliary flap pivoted to the surface and a linkage connecting the flap to the body, constraining the flap to move relative to the main surface when a variation occurs in the direction of the relative stream of the medium in which the vehicle is moving to vary the control effect of the surface, is characterized by means for increasing the control effect as a function of the speed of variation of the direction of the relative stream..In Fig. 8, the main surface 9 is hinged at 8 to the body 7, and carries a trailing edge flap 10 pivoted to the surface 8 and tied to the body at 13 by a rod 12. A lever 15 is pivoted to the body at 16 and has a slot 15a engaged by a pin 14 on the surface 9, so that when the surface pivots, the far end of lever 15 operates the bellows 17, 18 of a telemotor system which communicates with bellows 23, 24 by pipes 21, 22 to eject a spoiler 29, normally centred by a spring 30, 31. A by-pass duct 32 connects pipes 21 and 22 and contains a restricted orifice 33. In operation, a variation in the direction of the relative stream moves surfaces 9 and 10, whereupon the telemotor ejects the spoiler to modify the movement of surfaces 9 and 10. Due to the by-pass orifice 33, the degree of ejection of the spoiler will depend on the rate of deflection of the surface 9, and thus on the rate of change of direction of the relative stream. In another embodiment, Fig. 9 (not shown), tho telemotor operates a leading edge flap. Alternatively, Fig. 10 (not shown), the telemotor operates a subsidiary flap mounted at the trailing edge of the flap 10. In Fig. 11 (not shown), the telemotor is omitted and the rod 12 is fastened, not to the body, but to an elastic member secured to the body, and an hydraulic dashpot connects the flap 10 to the surface 9, having the same effect as the by-pass orifice 33 in embodiments involving a telemotor. In Fig. 12, the auxiliary flap 10 is connected to the surface 9 through a dashpot 61 by a lever 60 having a slot 59 engaging a pin 58 on a rod 57 constrained by a guide 62. Two pins 56a on rod 57 engage a leaf spring 56, the neutral position of which is determined by the pilot by adjustment of rod 55. Specification 506,074 is referred to.
Patent GB-961271-A (GB)
Title: Improvements relating to gas burners
IPC: F23C99/00
Filed: 1963-02-19
Abstract: 961,271. Gas burners. A. E. BOULET. Feb. 19, 1963 [Feb. 22, 1962], No. 6600/63. Addition to 930,603. Heading F4T. A gas burner for flameless combustion comprises a mixing chamber having an outlet covered by a curved wire gauze 39 and a curved lattice 43 in contact with the wire gauze. The lattice is formed by slotted longitudinal and transverse strips and defines square cells which communicate through notches 59 in the cell walls. In making the burner a flat wire gauze is spot welded to a rectangular frame 35 with a flat lattice placed between the wire gauze and a flange 38 of the frame. The frame is then secured to the outlet of the mixing chamber and the burner lit. When the gauze and lattice have reached the working temperature, pressure is exerted on the external face of the lattice to impart curvature both in the longitudinal and transverse direction to the gauze and lattice. The gas is supplied by a nozzle directed into a neck provided with two apertures for the entry of air. The neck leads to a widening part connected to the mixing chamber and containing a turbulence screw for adjusting the air entrainment. In another embodiment the air inlet apertures are covered by a movable sleeve. The central longitudinal line of the gauze may be supported on a rib on the burner head, Figs. 9, 10 (not shown).
Patent GB-372863-A (GB)
Title: Improvements in conveyors
IPC: B65G17/12
Filed: 1931-03-04
Abstract: 372,863. Endless rope conveyers. ELLSON, B. E., Abford House, Wilton Road, London. March 4, 1931, No. 6691. [Class 78 (i).] A conveyer comprises a pair of parallel endless ropes B connected at intervals by U-shaped stirrups F, and a trough G formed of flexible material such as rubber, canvas, leather, &c. or chain mesh, or interwoven links attached to the stirrups. Sagging of the trough is prevented by suspension lines H. Baffles N, Fig. 3, may be provided on the stirrups or trough to facilitate the conveyance of material on inclines. The stirrups may be wider as shown at Q, Fig. 5, and the sections R shorter. Specification 373,090 is referred to.
Patent GB-767311-A (GB)
Title: Improvements in or relating to semiconductor devices
IPC: H01L35/16
Filed: 1954-03-08
Abstract: A semi-conductor device utilizes as semi-conductor a compound of formula MNX2 where M represents copper or silver, N is xaluminium, gallium, indium, or thallium and X is sulphur, selenium or tellarium. The device may consist of a transistor, thermoelectric or photo conductive cell, rectifier or an electroluminescent cell.  By selecting particular combinations it is possible to obtain a desired energy gap value for the semi-conductor.  Copper indium selenide for example may be prepared by heating the constituents in stoichiometric proportions in an evacuated silicon container to 1100 DEG C. and cooling directionally; the resulting ingot may be subjected to a zone melting process to provide a single crystal.  Reference is made to the use of Cu Fe S2 as a semi-conductor, which has a similar crystal structure.
Patent GB-790782-A (GB)
Title: Check straps for vehicle doors
Inventor: HILL ALAN CHARLES
IPC: E05C17/20
Filed: 1955-03-09
Abstract: 790,782. Door checks, catches. PRESSED STEEL CO., Ltd. March 7, 1956 [March 9, 1955], No. 6878/55. Classes 44 and 65(1) A check arm 40 for a vehicle door is pivoted at one end to the door jamb 14 and passes through a circular aperture in a retaining plate 52 fixed to the door, the other end of the rod having attached to it a spheroidal bulge 47 and a buffer 48 both of rubber or siimlar flexible material. The door is held open by the engagement of the aperture with the groove between the bulge and the buffer. The arm 40 is covered with a sheath 46 which may be integral with the spheroid and the buffer.
Patent GB-1304961-A (GB)
IPC: C07C6/12
Filed: 1970-02-12
Abstract: 1304961 Xylenes TORAY INDUSTRIES Inc 12 Feb 1970 [12 Feb 1969 Aug 21 1969] 6896/70 Heading C5E Xylenes are prepared by disproportionating, in the vapour phase and in the presence of a solid catalyst providing acid reaction sites, a mixture of toluene and a mononuclear alkyl benzene having at least 9 carbon atoms, in which mixture the ratio of total alkyl carbon atoms to total benzene nuclei is between 1À01 : 1 and 2À4 : 1, in the presence of a gas containing 0À1-25 moles H2/mole of said mixture and having an H 2  concentration of not less than 70%, the reaction temperature being 300- 600‹ C., and the reaction pressure being maintained substantially constant in the range 1-45 kg./cm.<SP>2</SP> for at least 10 hours from the initiation of the reaction and then being increased by at least 1 kg./cm<SP>2</SP>. to a pressure not exceeding 100 kg./cm.<SP>2</SP> In the example a mixture of toluene with mixed trimethyl benzenes is disproportionated, the catalyst being silver mordenite.
Patent GB-796673-A (GB)
Title: Improvements in gramophone pick up mechanism
IPC: G11B3/08
Filed: 1956-03-06
Abstract: 796,673. Supporting gramophone pick-ups. CARROLL, A. G., and SEDDON, B. March 5, 1957 [March 6, 1956], No. 6956/56. Class 40 (2). A device associated with a gramophone pickup arm to enable the pick-up to be positioned over a selected groove of a record and then lowered automatically on to the record. An arm A on which the P.U. arm rests extends over the record, being curved to a radius parallel to the path followed by the pick-up head. Graduations and cursors a permit pre-selection of given points on the record. The pick-up arm 1 (Fig. 2) carries a clip a<SP>1</SP> to engage serrations in the edge of the arm A, which is attached to plunger B sliding in cylinder C. A spring c tends to force the plunger B downwards, the rate of descent being determined by a valve B<SP>1</SP> which controls the escape of air from under the plunger. Detail modifications of the valve construction are described.
Patent GB-1426865-A (GB)
Title: Carousel
IPC: B23K3/00
Filed: 1972-02-15
Abstract: 1426865 Welding by fusion; cutting by fusion BOC INTERNATIONAL Ltd 15 Feb 1973 [15 Feb 1972] 6976/72 Headings B3R and B3V [Also in Division H1] An indexible rotary work-holder for an electron beam welding, cutting or heating apparatus includes stationary extraction plate 2 with passages such as 24, at least one vacuum pump (26), (28), (30), (Fig. 1, not shown), and beam generator 32, rotatable support plate 4 with equiangularly spaced passages such as 22, a plurality of separately constructed vacuum chambers 18 secured to plate 4, means for indexing plate 4 relative to plate 2 so that vacuum chambers successively register with the or each pump and generator 32, at least one opening in a bottom or side wall of each chamber closed by a member 20 such as a hinged door and a vacuum seal between the plates. The seal may be made or enhanced by a thin film of liquid. Plate 4 may be indexed hydraulically pneumatically or by motor 10, pinion 12, and gear 14, and may be supported by anti-friction bearings. Chambers 18 may be eight in number and door 20 may support the workpiece. Cam rail 21 curves outwardly at loading or unloading stations, opening doors by an engaging projection. Inward curving of rail 21 closes the doors. Some or all chambers may have bottom-opening doors, necessitating re-positioning of the cam rail. In Fig. 1, pumps (26), (28) reduce to 10 and 0À1 torr. respectively, pump (30) to a further lower pressure, while last passage 24 allows air introduction. Before indexing to last passage 24, chamber 18 is cooled at an intervening station to inhibit oxygen, nitrogen or other gas effects on admission of air.
Patent GB-760419-A (GB)
Title: Improvements in or relating to weaving looms
Inventor: JABOULY JOANNY
IPC: D03D41/00
Filed: 1954-03-10
Abstract: 760,419. Shuttleless looms. HINDE & SONS, Ltd., F. Dec. 30, 1954 [March 10, 1954], No. 6982/54. Class 142 (2). Pattern mechanism for the loom of Specification 681,610, in which free warp threads 3 are pushed first to one side then to the other of stationary warp threads 6, comprises rows of needles 1, among the eyes 2 of which the threads 3 are distributed, and a stop bar 9 positioned by a pattern chain opposite any one row of needles. When the threads are pushed to the left, the threads 3 passing through two rows of needles move to the position shown in broken line, while those in the remaining row are arrested in the middle position coinciding with the threads 6.
Patent GB-683906-A (GB)
Title: Improvements in or relating to control units of variable pitch propellers
IPC: B64C11/42
Filed: 1950-03-21
Abstract: 683,906. Variable-pitch propellers. UNITED AIRCRAFT CORPORATION. March 21, 1950. [March 30, 1949] No. 6994/50. Class 114. A control device is formed as a self contained unit which is placed over a sleeve on the propeller shaft and held against rotation. The unit comprises an oil reservoir 84, containing a main pump 116, a scavange pump 162, both driven by the gear 120 rotating with the propeller shaft, and an auxiliary pump 104, driven by the electric motor 82 for feathering when the propeller is stationary. The inlet 124 to the pump is closed by the collar 128 so that oil can be pumped up pipe 134 in inverted flight. For normal constant speed operation fluid is led under the control of the governor valve 100 to passages 88, 94 which lead through annular parts in the sleeve 14 secured to the propeller shaft. Feathering and reversing is initiated by the hand operated switch 192 which selectively controls the solenoid operated valves 146, 148 to override the governor valve. Fluid from these valves also loads the pump pressure relief valve 96, thus increasing the effective pump pressure. Motion of the propeller blades is limited during feathering or reversing by contact segments 328, 330 on the blades, these operating holding solenoids 324, 326 and 344. Specifications 636,402 and 683,888 are referred to.
Patent GB-1171388-A (GB)
Title: Air Rectification Process
Inventor: MELZER GERHARD
IPC: F25J5/00
Filed: 1967-02-14
Abstract: 1,171,388. Air rectification process. CHEMIEANLAGENBAU ERFURT - RUDISLEBEN, VEB. 14 Feb., 1967, No. 7052/67. Heading F4P. All the nitrogen vapour withdrawn from the head of a high pressure air rectification column 2 through a line 1 is conveyed directly to one lateral side of the shell space of one or more vertically extending condensers 3a, 3b spaced from column 2, and from which condenser or condensers liquid nitrogen is withdrawn and returned through a line 6 to the column 2 as reflux whilst the remaining uncondensed nitrogen is withdrawn from the condenser or condensers at the side opposite said one side and is passed to further apparatus, e.g. an additional condenser, to effect further purification. The tube spaces of the condensers 3a, 3b are traversed by liquid oxygen withdrawn from a low pressure column 4 through a line 5, the resulting oxygen vapour being returned to the column 4 through lines 8.
Patent GB-513619-A (GB)
Title: Improvements in and relating to liquid-blast electric circuit breakers
IPC: H01H33/98
Filed: 1939-03-03
Abstract: 513,619. Liquid - blast switches. BRITISH THOMSON-HOUSTON CO., Ltd. March 3, 1939, No. 7080. Convention date, March 3, 1938. [Class 38 (v)] A switch for opening high-voltage power circuits comprises an insulating arc-chamber containing arc - quenching liquid, relativelymovable contacts separable in the chamber to form a pressure-generating arc, a plurality of independently - operable contacts arranged to form a plurality of breaks in series with the arc located adjacent to exhaust ports in the chamber and substantially in symmetrical relation to the pressure-generating arc, and means for biassing the independently - movable contacts towards closed-circuit position and permitting opening thereof only in response to limited arc pressure within the chamber. The invention is shown in its application to one pole of a conventional oiltank breaker with lead-in insulators 1 and a movable contact rod 9 on one end of a lift rod (not shown). The arc-chamber 4<1> is formed in a strong insulating cylinder 4 supported by insulating members 5 from an adapter 7 on the lead-in conductor 2. Pairs of fixed contacts 12, 13 and 14, 15 are normally bridged by spring- controlled contacts 10, 11 respectively, which by means of interconnectors 16, 19, 22 are placed in series with the pressure-generating contacts 8, 9. Contacts 10, 11 are loosely mounted on extensions 24" of plungers 24<1> from which they are spaced by washers 26. Apertures are provided in the contacts 10, 11, washers 26, and plungers 24<1> so that contact-opening is not retarded. When 9 is lowered and the arc-pressure developed thereby is sufficient to overcome the spring 10<1>, 11<1>, the contacts 10, 11 open and a blast occurs through ports 25 adjacent each break. These contacts reclose when the pressure subsides, leaving the circuit isolated at 8, 9. In a modification, Fig. 2 (not shown), a single break at each end is produced by movement of a flaplike, spring - controlled contact, exhaust ports being arranged in the tube-end plates and separated by arc-splitters.
Patent GB-1456558-A (GB)
Title: Heat exchangers
IPC: F28F21/06
Filed: 1974-02-15
Abstract: 1456558 Radiator mountings SOC ANON DES USINES CHAUSSON 15 Feb 1974 [11 April 1973] 7137/74 Heading F4S [Also in Divisions B7 and F2] A mounting arrangement for connecting a radiator of the kind having a tubular core extending between header boxes 2 and 3 of moulded material such as synthetic resin or glass, to a support such as a cross-member 4 or bracket 5 comprises a ring-shaped member 8 of distortable material arranged to be compressed and expanded outwardly by means of a headed bolt 10 and a nut 16 into contact with the internal wall surfaces of a cavity or recess 7 formed in the header box. The member 8 is provided with a metal insert 9 and washers 11 and 12 on opposite faces thereof. A second distortable member 13 of mushroom shape and provided with an insert sleeve 14 passes through a hole in the crossmember 4; the hole is lined with a protective member 17. The bolt 10 extends through both inserts 9 and 14, and its nut 16 bears against a washer 15. A similar arrangement may be used for mounting and supporting an accessory 6 on the radiator (see Fig. 3 for further detail). The inside wall of each cavity or recess 7 may be formed with ribs and recesses into which the material of ring 8 deforms when compressed (see Fig. 4, not shown). In a modified embodiment (Fig. 5, not shown) the head of the bolt is formed from a number of separate sections (21a) which are forced outwardly against the ring (8) by a conical protrusion (19) in the cavity (7). In an alternative embodiment (Fig. 6, not shown) the header boxes are formed with openended passages (23) instead of cavities or recesses, each passage receiving a tubular or conical shaped distortable member (8) and a nut and bolt.
Patent GB-154870-A (GB)
Title: Improvements in or relating to ore concentration
IPC: B03D1/001
Filed: 1920-03-09
Abstract: 154,870. Minerals Separation, Ltd. Nov. 24, 1919, [Convention date]. Surface-tension separating processes.-In a froth flotation process for concentrating ores, particularly oxidized ores of copper, lead, &c., the ore is suspended in water to which is added a minute proportion of oleic acid or similar fatty acids such as palmitic, margaric, or stearic acid, and a minute proportion of sodium silicate, with or without sodium carbonate, caustic soda or other alkali, and agitation and aeratinn are effected as usual. The oleic acid or the like may be added at the stage of wet-grinding as described in Specification 18937/13. The concentrate may be re-treated with the addition of more sodium silicate but without further addition of oleic acid &c. The apparatus used may be such as that described in Specification 18937/13.