baber/WOPTO huggingface dataset:
Patent GB-263410-A (GB)
Title: Improvements in the manufacture of glass or quartz so that it may be transparent to ultra-violet light
IPC: C03C3/16
Filed: 1926-07-01
Abstract: 263,410. Haddan, R., (Corning Glass Works). July 1,1926. Production of metal.-A method of producing glass which, in plates of 4 m.m. thickness, is transparent to ultra-violet rays, consists in reducing the quantity of iron impurities present in the raw material, preferably to less than 0.55 per cent, and in melting such material under non-oxidizing conditions. The quantity of titanium impurities is also reduced by subjecting the material, before its final setting, to reducing conditions. In making a calcium phosphate glass, the raw material is melted with a reducing- agent, preferably sugar or powdered carborundum, in a crucible composed of a material substantially free from oxides of iron and titanium. Coloured glasses may be obtained by adding the oxides of cobalt, chromium, uranium, vanadium, or nickel. Fused quartz of which the ultra-violet transmission will not change appreciably during use may be produced by fusing silica in which the iron and titanium content has been reduced to a minimum.
Patent GB-169262-A (GB)
Title: Improvements in or relating to conveyors for substances in a fine or loose state of division
IPC: B65G65/00
Filed: 1920-06-21
Abstract: 169,262. Redler, A. June 21, 1920. Endless-belt push-plate or scraper conveyers; casings.-A conveyer ,for substances in a state of fine division comprises a series of links or the like forming a continuous chainlike open structure a which travels in a closed casing d, the link-work being of such dimensions and so constructed that it forms with the bottom stratum of the substance conveyed an improvised solid band supporting the remainder of the load when travelling over a surface without apertures. The upper run of the conveyer is supported by a platform i and guides h. Material delivered through the inlet e passes through the upper run of the conveyer and guides h on to the lower run of the conveyer and the bottom of the casing, and is conveyed to the discharge opening f. If the outlet f is choked, the material is discharged through the overflows k, k<1>, until these are blocked and the casing is filled, whereupon the inlet becomes choked and prevents further material from entering. The number and arrangement of the inlets, outlets and intermediate apertures may be varied.
Patent GB-907355-A (GB)
Title: Improvements in or relating to methods of facing metals
IPC: C23C4/18
Filed: 1959-05-15
Abstract: A hard facing is applied to metal surfaces having a softening point above that of the facing alloy and particularly to the valves of internal-combustion engines, by flame-spraying a powdered cobalt-base alloy containing chromium and 1.6 to 2.6% of boron.  Best results are obtained from an alloy containing:  .C.0.9 to 1.4% .Cr.26.0 to 30% .W.3.5 to 5.5% .Si.0.70 to 1.75% .B.1.75 to 2.25% .Fe.not more than 3% .Ni.not more than 3% .Co.balance  Particle size of the powder is less than 100 mesh and the powder may be either milled or fragmented, but is preferably a 50-50 mixture of the two.  Particularly good results are obtained when the alloy is carried in a stream of non-oxidizing gas, such as a nitrogen hydrogen mixture through an oxy-acetylene flame, the carrier gas also forming a shield.  The metal article may be preheated, e.g. to 350 DEG F., before spraying, and after spraying is heated to a temperature below its softening point to fuse the coating.  Reference has been directed by the Comptroller to Specification 843,423.
Patent GB-1092937-A (GB)
Title: Materials handling equipment for fibrous sheet materials
Inventor: DUNNICLIFF CHRISTOPHER JOHN
IPC: D01G23/00
Filed: 1965-04-21
Abstract: 1,092,937. Endless conveyers. IMPERIAL CHEMICAL INDUSTRIES Ltd. April 7, 1966 [April 21, 1965], No. 16799/65. Heading B8A. [Also in Division D1] A conveying device for fibrous sheet material and particularly one suitable to receive filament held in a gas stream and thus form a fibrous sheet comprises grooved drums 12, 14 over which a single wire 26 is wrapped to form gas permeable upper and lower runs, pulleys 32, 36 being provided beneath the drums to convey the wire as it runs off the end of drum 12 back to the " starting " end of drum 14. A spring loaded pulley may engage the wire between pulleys 32, 36 or that variations in tension in the wire e.g. caused by the conveyer passing through an oven, are minimized; alternatively one of the drums may be mounted on a spring loaded slide. The fibrous sheet material may be lifted from the conveyer by a ramp of parallel rods, blades or wires extending between the wires of the upper run and inclined thereto.
Patent GB-1213821-A (GB)
Title: Method of making a turbine blade
Inventor: BAKER ALAN ANTHONY
IPC: C25D1/00
Filed: 1967-04-12
Abstract: 1,213,821. Electro-forming turbine blades. ROLLS-ROYCE Ltd. April 4, 1968 [April 12, 1967] No.16874/67. Heading C7B. In making a turbine blade, e.g. a gas turbine rotor blade, containing at least one cavity, a metallic shell is electro-plated on to predetermined conductive surfaces of an assembly formed by at least one removable former and at least one insert, parts of the conductive surfaces of the or each former being covered by a resist to prevent deposition of metal thereon and so form apertures in the shell, and subsequently the or each former is removed to form a corresponding cavity in the shell which communicates with the apertures in the shell. The formers may be of plastic, plaster, wax, aluminium or low melting point metal and may be removed by dissolution or melting, the non- metals being rendered conducting by coating or impregnation with graphite carbon or a metal such as silver or copper. Alternatively the former may be of stainless steel withdrawn bodily via the blade root end. The inserts may be of nickelchromium alloy reinforced with fibres such as of carbon or boron and the electro-plated metal may be nickel, cobalt or alloys of these metals with chromium, optionally in combination with another codepositable material which results in a shell of high melting point and oxidation resistance. Typically fibre-reinforced inserts 25, 26 are located in recesses 23, 24 in a wax former 22 so as to protrude slightly from it, the former being made conductive by a graphite coating covered at locations adjacent the leading and trailing edges of the blade form with a photoresist whereby on electro-plating apertures 31 are formed in the blade shell 20 and on removal of the former communicate with the hollow interior of the blade. In a modification Fig.3 (not shown) the inserts 25, 26 are joined by stiffening webs of metal or fibre-reinforced metal extending the length of the blade and the outer webs are flanked by separate removable formers defining with the inserts the surface on which the shell is electrodeposited.
Patent GB-560044-A (GB)
Title: Improved adjusting means for the brake magnets of watt hour meters and the like
IPC: G01R11/10
Filed: 1942-11-27
Abstract: 560,044. Supply meters. CROMPTON PARKINSON, Ltd., and ANGOLD, A. W. Nov. 27,1942, No. 16881. [Class 37] The brake magnet is swung towards or away from the axis of the disc on a pivot at its yoke end by means of an adjusting screw and nut. The magnet 1 is secured to a carrier 2 from which clamping screws 3, 4 depend. The screw 3, beneath the yoke of the magnet, passes through a hole in a horizontal fixing bracket 5 and the screw 4, beneath the poles of the magnet, passes through an arcuate slot 6 struck from the centre of the hole. A horizontal adjusting screw 9 engages a nut 10 rotatably mounted on an extension of the carrier 2. The neck of the screw 10 is mounted in a bearing 11 in front of the nut 10. The bearing 11 is rotatably secured to the bracket 5 by a stud 13. The neck of the screw 9 is circularly grooved immediately behind the bearing 11 and the groove receives the forked end of an angle plate 14 secured to the top of the bearing by a small screw 15 for preventing axial motion of the screw. After adjustment of the magnet by the screw 9 it is locked in position by nuts 7. The bracket 5 is secured to the faces of plane lugs 16 projecting from the meter structure, shims being interposed if necessary to ensure equidistant positioning of the magnet poles with respect to the meter disc 8. In modifications the bearing 11 and nut 10 may be interchanged, or the screw 9 may be non-rotatably carried by a nut as 10 on the extension whilst a second nut engaging the thread of the screw is carried by the bearing 11 so as to permit its rotation from the front of the assembly whilst preventing its axial motion.
Patent GB-1400978-A (GB)
Title: Stabilized ethylenically unsaturated beta-hydroxy esters
IPC: B01J31/00
Filed: 1973-04-10
Abstract: 1400978 Ethylenically unsaturated ester CONTINENTAL CAN CO Inc 10 April 1973 [10 April 1972 13 Nov 1972] 17025/73 Headings C3B and C3P Ethylenically unsaturated #-hydroxy esters, stable to premature gelation and which are polymerizable by ionizing radiation, are prepared by reacting a polyepoxide containing at least 2 epoxy groups per molecule with an α,#-ethylenically unsaturated C 3-6  monocarboxylic acid in the presence of a tin halide, e.g. SnCl 2 . The tin halide may be used at 0À1-1% by wt. of the reaction mixture. An alkaline catalyst such as a tertiary amine, e.g. benzyldimethylamine is also present. The tin salt may be deactivated by treatment with phosphoric acid. The ester may be polymerized by ultraviolet radiation, optionally in the presence of other ethylenically unsaturated materials, e.g. polyethylene glycol diacrylate or pentaerythritol tetraacrylate.
Patent GB-486569-A (GB)
Title: Web guiding device
IPC: B65H23/038
Filed: 1937-06-18
Abstract: 486,569. Feeding webs. DEHN, F. B. (Gilbert & Nash Co.) June 18, 1937, No. 17036. [Class 100 (i)] The web 8, Fig. 1, fed from a roll 7 is maintained in correct lateral position by an edge feeler mechanism, Fig. 3, associated with a sliding clutch member 64, Fig. 2, for coupling a normally stationary shaft 35 to continuously rotating clutch members 44, 45. The shaft 35 is shown in Fig. 1 as connected by a chain drive 85 to a screw 14 for longitudinal shift of the mandrel shaft 3 of the roll 7 ; alternatively a guide roller in the path of the web may be shifted at one end. The shaft 35 is mounted in bearings 33, 34, Fig. 2, on the side walls of a housing 20 enclosing an electromotor 22, the shaft 24 of which carries a pinion 26 engaging pinions 28, 29 driving through worm gearing the clutch members 44, 45 freely mounted on the shaft 35. The sliding clutch member 64 is keyed to the shaft 35 and is engaged by a yoke 63 on a shaft 53 rocked in either direction by means of solenoids 48, 49, the cores 50, 51 of which are pivoted to the ends of a lever 52 fast on the shaft 53 and normally held in neutral position by springs 58, 60 on intermediate pivoted rods 55, 56. The driving faces of the ratchet teeth of the clutch members are inclined at an angle A between 15 and 60‹ as required to ensure disengagement under different load conditions. The circuits of the solenoids include contacts 76, 77, Fig. 3, and corresponding contacts 74, 75 on a pivoted arm 71, carrying an edge feeler 78 and having a limited rocking movement determined by screw stops 74<1>, 76<1>. A counterweight 71<1> on the arm 71 maintains the feeler against the edge of the web 8. The feeler is pivoted at 82 on the arm 71 and is free to yield against the action of a spring 83 in the event of abnormal shift of the web to the right, after the arm 71 has been stopped by the stop screw 74<1>.
Patent GB-1433864-A (GB)
Title: Increasing the activity of catalysts containing  iridium ruthenium rhodium or osmium
IPC: C10G35/085
Filed: 1973-04-10
Abstract: 1433864 Treating reforming catalysts EXXON RESEARCH & ENG CO 10 April 1973 [28 April 1972 21 March 1973] 17049/73 Heading C5E [Also in Division B1] Hydrocarbon feeds are reformed using a supported iridium catalyst which has been activated and/or regenerated by contact with a halogen-containing gas in the presence of 0 to 10% vol. oxygen (based on total gas volume) at at least 300‹ C. to reduce the iridium crystallite size (see Division B1). Suitable hydrocarbon feeds are naphthas which are sulphur-free and which contain 15 to 80 vol. per cent paraffins, 15 to 80 vol. per cent naphthenes and 2 to 20 vol. per cent aromatics and having a boiling range between 25‹ and 230‹ C. The reforming is carried out at 350-550‹ C. in the presence of hydrogen at a pressure of 1 to 50 atm. The examples relate to the reforming of heptane-containing feeds.
Patent GB-688145-A (GB)
Title: Domestic gas oven
Inventor: MCEWAN FRANK ERNEST
IPC: F24C15/32
Filed: 1950-07-10
Abstract: 688,145. Gas cookers. CARRON, CO. July 10, 1951 [July 10, 1950], No. 17158/50. Class 126 A gas oven comprises a casing divided into upper and lower compartments by a platform, an outlet to a flue near the bottom of the upper compartment, false side walls forming spaces between them and the adjacent sides of the upper compartment which communicate with the upper compartment at top and bottom, and gas burners mounted in the lower compartment beneath holes in the platform leading to the spaces between the false walls and the sides of the upper compartment. A casing 1 lined with heat insulating material 2 is divided into upper and lower compartments 3, 4 by a platform 5. False side walls 7, corrugated to form runners for the baking trays, are spaced from the sides 8 of the upper compartment and gas burners 10 are mounted in the lower compartment 4 beneath holes 11 in the platform 5 leading to the spaces between the false walls 7 and sides 8. The gaseous products of combustion heat the air in spaces 9 and pass into the compartment 3 over the top of walls 7, air from the lower compartment 4 and gases from the bottom of compartment 3 entering the bottom of the spaces 9. A flue outlet 6 is provided at the bottom of the upper compartment 3 and inlets (not shown), are provided at the front of the lower compartment.
Patent GB-146146-A (GB)
Title: Improvements in or relating to projectiles
IPC: F42B10/40
Filed: 1920-06-24
Abstract: 146,146. Chilowsky, C. June 12, 1919, [Convention date]. Addition to 129,977. Explosives.-Powders containing no phosphorus are described for use in producing stabilizing jets for projectiles. These powders are mixtures of magnesium and perchlorate of potash or sulphur, or a mixture of aluminium, magnesium, and perchlorate of potash compressed to 1000 kgs. per sq. cm. A modified phosphorus powder is also described containing red phosphorus 55 per cent, oxide of copper 38 per cent, and sulphur 7 per cent.
Patent GB-1033996-A (GB)
Title: Door checking and holding means
Inventor: FANNAN ANDREW HAROLD
IPC: E05C17/20
Filed: 1964-04-25
Abstract: 1,033,996. Door stays. L. W. MENZIMER. April 25, 1964, No. 17239/64. Heading E2F. In a device for checking and retaining a door in the open position e.g. for use on vehicle doors, an arm 21 which is pivotally connected to the door 12 engages opposed friction pads located within a slot 22 in a plate mounted on the door frame 14 and has a stop 35 provided at its free end to limit the door opening. To increase the frictional resistance over the final opening stage the arm, formed in two pieces may have two inclined ramp portions 34 or may have diverging ramps 43, 44, Fig. 10 (not shown). Alternatively the arm 21 may be pivotably connected to the frame 14. The arm may be formed of a single thickness of material.
Patent GB-283073-A (GB)
Title: Apparatus for feeding and crushing sisal and like leaves
IPC: D01B1/22
Filed: 1927-06-29
Abstract: 283,073. Bell, W. T., and Perry, F. B. June 29, 1927. Decorticating sisal &c.-Sisal and like leaves to be fed to a decorticating machine C are placed in a hopper 4 and are lifted therefrom by spikes 17<a> on chains 17 passing over the front wall 5 of the hopper. The leaves fall on to an adjustable sloping plate 22 and slide down into proximity to a spiked drum 27. This drum is grooved and accommodates belts 43 which also pass over a crushing-roller 30, a guide-pulley 38 and a jockeypulley 39. A pair of crushing-rollers 31, 32 are mounted over the roller 30 and pressed down by springs 36, 37. Belts 47 pass round guide pulleys 44, 45 and between the crushing-rollers. The leaves are lifted by the spikes 29 on the drum 27 and are carried forward by the belts 43, 47 between the crushing-rollers to the pulley B and chain A of the decorticating-machine. The chains 17 and front wall 5 of the hopper are mounted on a girder frame 6 pivoted near its lower end and supported by adjustable struts 19, so that their inclination can be varied.
Patent GB-200679-A (GB)
Title: Improvements in crown corks or caps for bottles
IPC: B65D51/24
Filed: 1922-06-22
Abstract: 200,679. Dahl, E. June 22, 1922. " Crown corks " which are formed with apertured tongues 2 to facilitate opening are provided with a bulb 5 on the edge of the opening 3 to prevent injury to the fnger and with an auxiliary tongue 4 which projects away from the bottle to allow the tongue to be bent outwards easily. Reference has been directed by the Comptroller to Specifications 10594/08 and 21728/14.
Patent GB-406292-A (GB)
Title: Improvements in or relating to thermionic valves and circuit arrangements therefor
IPC: H03F1/08
Filed: 1932-06-18
Abstract: 406,292. Thermionic valves and amplifying circuits. WARREN, S. F., 27, Lowick Road, Harrow, Middlesex, and WOODS, W. L. J., 1, Argyll Street, London. June 18, 1932, No. 17331. [Classes 39 (i) and 40 (v).] A circuit for a pentode valve wherein the electrodes of the valve are concentrically located and the grids consist of control, screening and suppressor grids, has the suppressor grid connected to one of the other electrodes by an ohmic or inductive resistance, the potential drop through which, on passage of the working current, constitutes the sole bias between the suppressor grid and that electrode to which it is connected. The resistance may be located within the valve or in the base thereof, and may be variable, for example, by a set-screw adjusted externally of the valve. A condenser may be connected in parallel with the resistance and may be wound spirally around it. Fig. 3 shows the resistance connection 110 to the screening-grid 104, and Fig. 4, the resistance 122 and condenser 122<1> connections to the cathode 123 of an indirectly heated valve. Specifications 287,958<**>, [Class 39 (i), Electric lamps, Arc &c.], 401,296, and 401,305 are referred to.
Patent GB-170898-A (GB)
Title: Improvements in and relating to propulsion of aircraft
IPC: B64D27/00
Filed: 1920-06-26
Abstract: 170,898. International All-Steel Aircraft Syndicate, Ltd., and Higginbotham, W. June 26, 1920. Propelling; planes, connecting to machine.- The engine 1 is arranged with its driving-shaft 2 athwartships and inclined upwardly to intersect. the axis of the propeller shaft 10, which it drives through bevel and worm gearing. The propeller may be carried on the wing, as shown, with the driving-shaft 2 passing through a hollow spar 8 of streamline section which supports the wing onthe body 6.
Patent GB-848363-A (GB)
Title: Improvements relating to the connection of power-take-off driven vehicles to draughtvehicles
Inventor: WILLIAMS FREDERICK
IPC: A01B71/00
Filed: 1958-05-31
Abstract: 848,363. Driving trailers. HARRISON, McGREGOR & GUEST Ltd. June 1, 1959 [May 31, 1958], No. 17456/58. Class 79(2). [Also in Group XXX1I] The power-receiving shaft of a driven trailer is adjustable in position relative to the draw bar. In a two wheel trailer, the powerreceiving shaft 22 is housed in a tubular main frame 12 of the vehicle and the draw bar 14 is pivoted at 15 to brackets 13 attached to the member 12. A screw member 27 is pivoted at 28 to the vehicle and connected by a trunnioned nut 24 and pivoted links 23 and 25 to member 12 and draw bar 14. Rotation of the screw 27 produces relative movement between the members 12 and 14. A stand 16 is also pivoted at 15 and may be secured in an operative position by engagement of a peg in holes 17 or in the retracted position by engagement of the peg in a hole 19. In a four wheel vehicle, the drive shaft 12 is made angularly adjustable. The trailer may be a manure, spreader or self-unloading trailer.
Patent GB-368628-A (GB)
Title: Improvements in endless track vehicles
IPC: B62D55/24
Filed: 1931-06-16
Abstract: 368,628. Endless-track vehicles. MARTINAGE, L., 46, Rue de Courcelles, Paris. June 1,6, 1931, No. 17491. Convention date, June 21, 1930. [Class 79 (i).] Relates to endlesstrack systems of the kind comprising an endless chain formed from a plurality of links pivoted together and extended bevond their r pivots so that the ends of adjacent links overlap and form a track upon which load-supporting rollers bear. According to the invention (1) in that portion of the chain adjacent the load-bearing rollers there is always at least one roller which bears on one link of a joint on one side of the joint while at least one other roller bears on the same link on the other side of the joint, (2) the chain links are extended beyond their pivots for a distance not less than and preferably greater than half the pitch of the rollers, and (3) the pitch of the load-supporting rollers is less than the pitch of the chain and the chain links are extended beyond their joints for a distance substantially equal to half the pitch of the chain. The arrangement is such that although the chain itself is flexible in either direction, yet when passing under the rollers it acts as a chain rigid in one direction. In the construction shown the track or chain comprises similar links A pivoted together at C and having extensions B at each end beyond the pivots. The load-supporting rollers D are mounted on pins I in plates K so that the pitch of the rollers is less than the pitch of the track. The pivot pins C of the track are provided with central bosses C<1> adapted to engage a driving sprocket L, the latter being formed with straight or curved surfaces W corresponding to the shape of the backs of the links. The load rollers D are formed with central flanges G adapted to engage between the two sections of the roller path and guide the track laterally ; alternatively the rollers may have grooves engaged by central guide links on the track. The links may be protected by trough-shaped metal covers or sections M having interengaging ends N, O covered by washers P; the gap between the lower edges of these cover sections is closed by plates R. A continuous tyre S having shoes S<1> is secured to the covers M by bolts U. The plates K carrying the rollers D may be of elongated, elliptical, circular or other form, the backs of the chain links being curved to the necessary shape for the links to pass evenly over the rollers D. The top run of the track is carried by return rollers D. The rollers are lubricated by means of passages T, and the chain is automatically lubricated by oil dropped into the troughs M by a mechanical lubricator actuated from the driving axle or other moving part.
Patent GB-788119-A (GB)
Title: Improvements in or relating to filtration
Inventor: MOONEY RONALD BARRON
IPC: C01G23/00
Filed: 1955-06-17
Abstract: A process for the recovery of titanium values from effluents containing the same comprises passing the effluent through a filter bed of insoluble titanium-containing material.  The filter bed is composed of graded sand, the coarsest layer lying at the bottom and successive layers above become progressively finer while the uppermost layer consists of an insoluble titanium-containing material such as powdered rutile.  The effluent is admitted to the top of the filter bed and at the end of a filtration cycle the deposit is removed together with some of the rutile for subsequent manufacture of titanium compounds.  It is desirable to replenish the uppermost layer with powdered rutile from time to time.  Means may be provided for back washing the filter bed with water, and the effluent may be treated with alkaline solutions prior to filtration to precipitate soluble titanium compounds.