baber/WOPTO huggingface dataset:
Patent GB-614120-A (GB)
Title: A process for protecting the heating surfaces of boiler and superheater tubes and economisers and oil and tar stills
IPC: F22D1/02
Filed: 1946-07-08
Abstract: In a process for protecting the heating surfaces of boiler and superheater tubes and economisers and oil and tar stills, the tubes are first cleansed and preferably roughened, coated preferably by spraying with an aluminium-cadmium alloy containing preferably not more than 2 per cent of cadmium, heated to between 650 DEG  C. and 1200 DEG  C., allowed to cool and finally coated with an aqueous suspension of hydrated lime.  The thickness of the alloy coating is between 0.002 and 0.015 inch and the suspension of lime which may contain up to 25 per cent of organic materials, e.g. glue or size and colloids to assist in its dispersion is applied when the tubes are preferably at about 260 DEG  C., though it may be applied when the tubes are cold.ALSO:In a process for protecting the heating surfaces of boiler and superheater tubes economisers and oil and tar stills, the tubes are first cleaned and preferably roughened coated preferably by spraying with an aluminium-cadmium alloy containing preferably not more than 2 per cent of cadmium, heated to between 650 DEG C. and 1200 DEG  C., allowed to cool and finally coated with an aqueous suspension of hydrated lime.  The thickness of the alloy coating is between 0.002 and 0.015 inch and the suspension of lime which may contain up to 25 per cent of organic material, e.g. size or glue and colloids to assist in its dispersion is applied when the tubes are preferably at about 260 DEG C., though it may be applied when the tubes are cold.
Patent GB-1291549-A (GB)
Title: Monitoring transverse forces on vehicles travelling along curved paths
IPC: B61F5/22
Filed: 1971-04-19
Abstract: 1291549 Railway vehicle undercarriages KNORR-BREMSE GmbH 19 April 1971 [26 Jan 1970] 20412/71 Heading B7L [Also in Division G4] The apparatus of Specification 1,246,688 is modified in that the constrained gyro of that Specification is replaced by means for sensing transverse forces on the vehicle. As described, the force sensing means comprises a pendulum 1 deflectably mounted on a support fixed to the vehicle and inductively or capacitively coupled with signal deriving means 1<SP>1</SP> so that an output signal +b or -b on lead 3 or 4 is derived in response to the deflection of the pendulum. The output signal which corresponds to the centrifugal accelerations acting on the vehicle is applied to a differentiator 2 so that from a signal +b or - b an additional signal +db/dt or -db/dt on   line 5 or 6 is derived. As in Specification 1,246,688, the leads 3, 4, 5 and 6 are connected via a commutator 7 to logic circuitry to derive control signals to adjust the inclination of the vehicle.
Patent GB-668141-A (GB)
Title: Improvements relating to magnetrons
IPC: H01J25/587
Filed: 1950-08-17
Abstract: 668,141. Magnetrons. BRITISH THOMSON-HOUSTON CO., Ltd., and FISHER, T. W..C. Aug. 17, 1950, No. 20433/50. Class 39 (i). In a multi-cavity magnetron of the kind in which the evacuated envelope of the magnetron also encloses the magnetic polepieces, the polepieces 13, 14 are centred with respect, to the cavities by being positioned within the ends of a tubular anode block 10, each polepiece being retained in the anode block by means of a cup-shaped member 23 having its smaller rim sealed to the anode block at 26, and the larger rim sealed to the polepiece at 25. Each polepiece has a shoulder 17 which abuts against the anode block to ensure correct positioning and the polepiece 14 supporting the cathode is insulated therefrom by means of a glass tube 36. Output from the magnetron is taken from the chamber 30 having a glass window 31 of a composition such as described in Specification 449,807, [Group XXIII]. The magnetron is evacuated through a tube 39. The polepiece 13 carries a tuning member 19 operated by a screw-thread 40. The construction is such that the last seals to be made, i.e. those at points 25, are effected at a region remote from the anode surfaces, which are therefore not contaminated by products arising from the formation of the seal.
Patent GB-337740-A (GB)
Title: A continuous decorticating machine for aloe and similar fibrous leaves
IPC: D01B1/10
Filed: 1929-07-04
Abstract: 337,740. Kings Patent Agency, Ltd., (Unienville, D. M. d'). July 4, 1929. Scutching-apparatus.-In a machine in which the material is fed to a scutching-drum. 4 and a fixed bar or shoe 3 by a feed roller and co-operating guide member, the guide member 2 is separate from the bar 3 and is spaced a substantial distance from the roller 1 at the feed end and almost touches the roller at the scutching end to provide a gradually narrowing feed space. The guide may be arranged above the feed roller, in which case the feed roller will rotate in the opposite direction to the scutching-drum. The guide 2 may be integral with side walls 5 or be bolted thereto, and may be made in two parts. The bar 3 may also be in two parts and may be adjustable. The scutching-drum may be provided with blades 6 formed of angle iron. Water may be supplied through a pipe 7 and collect in the guide plate. The fibres are collected on a conveyer 8, which may deliver them to a second decorticating unit.
Patent GB-350759-A (GB)
Title: Improvements in or relating to the carburetting of air
IPC: F02M27/02
Filed: 1930-07-07
Abstract: 350,759. Vaporizers. GREY, J. A. DE, 65, Rue d'Amsterdam, Louvre, Paris. July 7, 1930, No. 20550. Convention date, July 10, 1929. [Class 7 (iii).] A process for producing a homogeneous gaseous mixture of air and fuel, particularly a heavy fuel, comprises in combination the following steps (1) preheating the air and fuel and the mixture obtained therefrom, (2) facilitating the intimate intermixture of the air and fuel by passing the mixture through a group of exhaust-heated Venturi nozzles and (3) thereafter passing the mixture through a catalyzing chamber. The latter chamber is filled with any catalyst which facilitates the cracking of heavy fuel. Examples of suitable catalysts are:-metals such as iron, manganese, copper, nickel and platinum or their compounds such as oxides; carbonaceous materials such as charcoal or activated carbon ; or inert materials such as pumice, asbestos, silica gel, kieselguhr and Florida earth.
Patent GB-643234-A (GB)
Title: Door stabiliser
IPC: E05C17/22
Filed: 1948-08-05
Abstract: 643,234. Stays for hinged articles. McGEOCH & CO., Ltd., W., and McNEIL A. Aug. 5, 1948, Nos. 20671 and 30879. [Class 65(i)] In a box-guided door stay wherein the bar is frictionally gripped by friction pads incorporated in the box guide, the latter comprises a bracket 16 attachable to the door. and a spigot 17 screwthreaded into and angularly movable in the bracket. The spigot is formed with an axial hole 20 accommodating a spring 25 and pads 26 and 27 held by the spring against a bar 10 which penetrates a transverse hole 19 formed in the spigot. A screw 21 is provided for regulating the spring stress. In order to limit the range of movement of the door, the bar may be provided with a movable stop incorporating a buffer of resilient material.
Patent GB-422932-A (GB)
Title: Improvements in steam traps and the like
IPC: F16T1/30
Filed: 1933-07-24
Abstract: 422,932. Steam traps. CARTER, F. S., Greenwood's Buildings, West Canal Wharf, Cardiff. July 24, 1933, No. 20753. [Class 64 (ii)] In a steam trap having an inverted float or in a bucket trap, a float-operated ball valve e is attached directly to the float q by means of a cage f in which a spring k holds the ball against a seat g therein the cage having a cap h which keeps the spring k against the ball valve and has a hole j through the centre. The spring may be held at its base by an adjustable plug with a lock nut o to adjust the tension. Water and steam enter at a, and a guide m slides over an outlet l, water leaving finally at b. A
Patent GB-808500-A (GB)
Title: Anchor supports for roofs and walls of mine galleries and the like
IPC: E21D21/00
Filed: 1955-07-19
Abstract: 808,500. Supports for roof and walls of mines. BERGBAUSTAHL, G. m. b. H. July 19, 1955 [Sept. 9, 1954], No. 20803/55. Class 20(2) Roofs and walls of mine galleries are supported by rods on wire cables b connecting in zig zag manner the heads a of staggered rows of anchor bolts embedded in the adjacent rock strata. A row may be connected to the next row but one. The ends of the rods may be hooked to plates on the ends of the anchor bolts or flat section rods have holes through which the anchor bolt head passes.
Patent GB-1505989-A (GB)
Title: Sampling probe
IPC: G01N1/22
Filed: 1975-05-09
Abstract: 1505989 Gas sampling probe N F GARDNER 9 May 1975 [10 May 1974] 20813/74 Heading GIB A probe for sampling a flowing medium comprises an inlet for a part of the flowing medium, a passage 18 extending from the inlet for the flowing medium entering the probe, the passage having at or adjacent its inlet end a porous wall 6 which extends over at least a part of the length of the passage, means 9, 8 for supplying to the extension of the porous wall a quench medium capable of passage through the porous wall and means, 14, 13, 10, 12 for injecting an educting medium into the passage from its inlet end to cause eduction of a part of the flowing medium through the passage. The probe may be mounted in a nipple 2 at right angles to the direction of gas flow in a wall 3 of an outlet passage from a furnace, its outer ends being held by a cap 4. Outer jacket 10 is thermally insulated at 11 and the annular gap between jacket 10 and nipple 2 may be purged with steam from pipe 16. In another embodiment (not shown) the same gas is used as quench medium and educting medium, and a single jacket is used about passage 18.
Patent GB-658372-A (GB)
Title: Bottle attachment device for use in preparing sparkling beverages
IPC: B67D1/04
Filed: 1949-08-10
Abstract: 658,372. Bottles; stoppers. BLUMAUER, E. Aug. 10, 1949, No. 20817. [Classes 125(i) and 125(iii)] A device for use on bottles for the preparation of sparkling wines &c. comprises a hollow fitting 3 tightly attachable to the neck of a bottle, e.g. by a split ring 2 and provided with an aperture 6 capable of being closed at will from outside by a removable element and from the inside by a valve 5 which is held against the aperture by internal pressure. The removable element may be a cup 7 adapted to receive the yeast dregs which settle during fermentation with the bottle inverted. The cup 7 is removed with the valve closed so that the internal pressure does not drop. A screw stopper engaging the valve 5 is used to open the valve. Otherwise the removable element may comprise a supply of liquid carbon dioxide or a closage device containing liqueur.
Patent GB-383931-A (GB)
Title: Improvements in and relating to liquid-break electric switches of the explosion chamber type
IPC: H01H33/04
Filed: 1932-07-23
Abstract: 383,931. High-tension switches. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitõts- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) July 23, 1932, No. 20819. Convention date, July 23, 1931. [Class 38 (v).] In a liquid break switch of the explosion chamber type, in order to provide for an adequate generation of vapour pressure from the switching liquid even with the smallest currents the switch may be called on to interrupt, the period of time elapsing between the separation of the contacts and the final withdrawal of the movable contact from the explosion chamber is varied in accordance with the current to be interrupted. In the construction shown in Fig. 1, the " fixed " contact 6 with which the movable contact 5 co-operates forms part of the explosion chamber 1 which is filled with liquid, for example water, and is immersed in liquid in the container 7. The explosion chamber is carried on guide pins 2 and is maintained in the raised position by the springs 3. Electrical connection with the contact 6 is effected by the spirally wound metal strip 4. When breaking heavy currents, the differential action of the pressure developed in the explosion chamber, through the upper end of which the movable contact is passing depresses the chamber as a whole away from the movable contact so that the time taken for the movable contact to clear the chamber is reduced. With small currents, the pressures developed are inadequate to produce this movement and, in consequence, the duration of the arc is a maximum. In a modification, Fig. 2, the chamber is mounted to slide upon the fixed contact 2 mounted on the outer chamber and the movable contact has an enlarged portion 5<1> passing into the explosion chamber, the diameter of this enlarged portion being greater than that of the fixed contact on which the chamber slides so that the necessary differential action is ensured.
Patent GB-152476-A (GB)
Title: Automatic stabilizer for aeroplanes
IPC: B64C17/00
Filed: 1919-08-25
Abstract: 152,476. Strout, A. L. Aug. 25, 1919. Steering and balancing. - Automatic stabilizing- apparatus for aeroplanes comprises a pendulum for positively operating the balancing-flaps, the penclulum being suspended at any desired position from a pivoted link, the lower end of which is coupled to the operating-means actuated by the pendulum. A link 2 is pivotally mounted on a fixed frame 1, the pendulum being adjustably supported at 3 on a pin, at the other end of which is fixed a link 8 operating the arm 10 of the valve of an hydraulic engine. The piston-rod 19 of this engine is coupled to the balancing flap controls, and also, by a rod 22, to the end 23 of the link 2 which acts as a hunting-gear. The pressure in the engine system is maintained by a pump A and constant pressure regulating tanks B. The apparatus acts by gravity when the machine tilts or by centrifugal force when the machine is on a, curved path. In place of a fluid-pressure engine, equivalent electrical or mechanical actuating-means may be employed.
Patent GB-982247-A (GB)
Title: Improvements in or relating to organic chromium compounds
IPC: C07F11/00
Filed: 1961-06-09
Abstract: Organic chromium compounds are obtained by admixing, in the absence of water, anhydrous chromic chloride, or an organic addition complex thereof, with either an organic compound which undergoes keto-enol tautomerism, or an organic compound which has a hydroxy group positioned with regard to a co-ordinating atom so as to be capable of forming, with the chromium of the chromic chloride or the addition complex thereof, a chelate ring having 5-7 members, heating the thus-formed reaction mixture, in the presence of metallic zinc or chromous chloride, to boiling for a period of time sufficient to effect reaction between the chromic chloride source material and the organic compound, and recovering the thus-produced chromium organic compound.  The chromic reactant may be a complex of chromic chloride and acetone, which may be prepared by heating anhydrous chromic chloride with up to a nine times stoichiometric excess of acetone in the presence of a reducing agent such as hydrogen, sodium sulphite, stannous chloride, ferrous chloride, sodium amalgam, sulphur dioxide, chromous chloride, aluminium, manganese, chromium or zinc. Organic compounds specified for reaction with the chromic reactant are beta-diketones, such as acetyl- and benzoyl-acetone, betaketo-oximes, salicylic acid, 2-hydroxy-azo compounds (i.e. compounds which include the group <FORM:0982247/C2/1> or <FORM:0982247/C2/2> , 8 - hydroxyquinoline, 1 - hydroxyanthraquinone and alpha-hydroxy carboxylic acids.  The reaction is desirably carried out in a solvent such as benzene. In the examples, acetylacetone is reacted with anhydrous chromic chloride, in the presence of chromous chloride, to form chromium acetyl - acetonate. Specification 881,836 is referred to.ALSO:Chromium organic compounds are prepared by admixing, in the absence of water, anhydrous chromic chloride or an organic addition complex thereof (e.g. a complex with acetone) with either an organic compound which undergoes keto-enol tautomerism or an organic compound which has a hydroxy group positioned with regard to a co-ordinating atom so as to be capable of forming, with the chromium of the chromic chloride or the addition complex thereof, a chelate ring having 5-7 members, heating the thus-formed reaction mixture, in the presence of metallic zinc or chromous chloride, to boiling for a period of time sufficient to effect reaction between the chromic chloride source material and the organic compound, and recovering the thus-produced chromium organic compound.  The organic compound reacted with the chromic compound may be a 2-hydroxy-azo compound, i.e. a compound which includes the group <FORM:0982247/C4-C5/1> Specification 881,836 is referred to.
Patent GB-471575-A (GB)
Title: Improvements in or relating to toothed gears
IPC: F16H55/02
Filed: 1936-07-29
Abstract: 471,575. Toothed gearing. AUTOMOTIVE PRODUCTS CO., Ltd., and TRAPP, G. J. July 29, 1936, No. 21009. [Class 80 (i)] [Also in Group XXVI] To ensure correct assembly of two meshing gear members which move together at a constant and uniform velocity-ratio, one of them is formed with a tooth of similar form and set on same pitch line as the other teeth but of different size, and the other member has a corresponding tooth space. For example,.one tooth may be of greater pitch than the others. The gears may be of equal size or, as in gearing for driving an engine camshaft, one may be an exact multiple of the other. The invention may be applied to rack gearing for a fuel injection pump, in which the injection from a number of cylinders is to be simultaneously controlled, a large tooth 17 on each control pinion 21 being engaged in a large space in a rack section 32 on a slidable bar 31. In a pump in which the cylinders are arranged in a circle a central gear has a large space to engage a large tooth on each of a number of pinions controlling the deliveries from the cylinders. Specification 441,954, [Group XXVIII], is referred to.
Patent GB-786110-A (GB)
Title: Improvements relating to the running-in of internal combustion engines
Inventor: MIGURSKI WITOLD
IPC: F01M9/02
Filed: 1955-07-20
Abstract: 786,110. Treating charges. JENOGRAPH, Ltd. July 20, 1955, No. 21011/55. Class 7(2) During running-in of an engine, a mixture of dry powdered graphite and a metallic salt or salts is fed from a metal, "plastic" " or glass container 1 to the air intake via a nozzle 3 controlled by a sliding valve rod 5 and via a turbulence-promoting chamber 7. One or more of these metallic salts may be used; oleates naphthenates or phosphates of sodium, potasium, tin or lead. The graphite and salts are ground to a particle size of from less than one micron to about seven microns according to the roughness of the bearing surfaces to be run in.
Patent GB-336006-A (GB)
Title: Improvements in or relating to machine guns
IPC: F41A19/01
Filed: 1929-07-10
Abstract: 336,006. Adams, E., S. R. July 10, 1929. Counters actuated by reciprocating mechanism. -A ratchet-driven rounds-counter for machine guns hasthe reciprocating pawls 32 driven by the recoil of the gun through a vertical tappet-rod 16 about which the indicator casing 53 can be rotated to enable it to face in various directions in azimuth. Further, the said casing is also adjustable about its horizontal axis so that its inclination can be varied. To permit of these adjustments, alternative bolt holes 28 are provided for connecting the casing 53 to the bracket 15 which in turn is provided on its flange 23 with alternative bolt holes 25 for connection to the frame 10 carried by the gun casing 3. Motion is transmitted to the tappet-rod 16 from the recoiloperated spring-controlled rod 2 by a tappet-lever 14. The drive is such that the rod 2 can overrun the ratchet drive during abnormal recoil movement. The tens and hundreds ratchet wheels, 35, 36, Fig. 2, show by means of indicating drums 45,- 46 the number of rounds to the nearest ten remaining in the ammunition box, unit rounds not being indicated in order to save space. Handwheels 48, 49, 50 are provided for setting the counter to the number of rounds in the box.
Patent GB-1422119-A (GB)
Title: Screw thread tap grinding
IPC: B24B3/22
Filed: 1972-05-06
Abstract: 1422119 Grinding screw thread taps COVENTRY GAUGE & TOOL CO Ltd 16 Feb 1973 [6 May 1972] 21227/72 Heading B3D [Also in Division B8] Apparatus for grinding a screw thread tap or tap blank 1 comprises means for laterally oscillating the tap being ground relative to a grinding wheel 23 in timed relation with rotation of the tap in order to impart relief to the thread. The apparatus may be in the form of a machine or an attachment therefor. The tap is held between centres 37, 38 in head and tail stocks 27, 28 on a cradle 22 supported by pivots 24 on a support structure 25 mountable on a machine base 26. A driver 31 for the tap is mounted on the spindle of the headstock, and the spindle is connected through a floating coupling 36 with the machine drive shaft 34. A single lobe cam 12 is mounted on a layshaft 42 driven by gearing 44, 45 from the drive shaft 34. A spring 40 acts on the cradle to press the cam against a follower 33 mounted on the headstock 27 so that as the spindle rotates, the cradle oscillates so that the grinding wheel 23 grinds the relief on the screw threads. The taps may be automatically loaded into the machine after axial transverse of the tap. The centre of the tailstock is movable hydraulically to release the tap and a fresh tap is fed between the centres by a loading apparatus having a lifter 61 which can be raised by a movable cylinder 62 sliding over a fixed piston 63 to carry a tap 1 into a holder 64 having a spring latch 65. The holder is advanced by hydraulic means 67 to position the tap between the centres 37, 38. When the centres grip the work, the holder is reloaded, the spring latch riding over the tap. The taps to be ground are disposed in a magazine 60 which may be inclined and the taps may be advanced to the holder by an actuating means 68.
Patent GB-1352610-A (GB)
Title: System for extracting a component signal from an electrical signal embodying interlaced spectral multiplexing
IPC: G02B27/46
Filed: 1971-04-19
Abstract: 1352610 Electro-optical channel separator THOMSON-CSF 19 April 1971 [18 Feb 1970] 21247/71 Heading G2J [Also in Division G1] In an electro-optical system for extracting the signals pertaining to a single channel from an electrical signal in which signals are multiplexed with interlaced spectral bands and wherein light from a monochromatic source is modulated by the signal S M  Fig. 4 in a plate 1 which is mechanically stressed by the signal, spectral sub-bands are extracted from areas of the plate by slots in a diaphragm 4 and are reconstituted by an arrangement including a group of lens spreaders 7, 9, producing contiguous images of the slots in a plane U, and a photo-cell 6 having a slot inlet aperture P. The lenses are cylindrical and a single lens block to cover all the slots is described with reference to Fig. 5 (not shown). A further modification includes a group of holographic lenses between a pair of transparent slots to effect the reconstitution.