baber/WOPTO huggingface dataset:
Patent GB-259573-A (GB)
Title: Improvements in or relating to reversing gears
IPC: F16H3/00
Filed: 1926-10-05
Abstract: 259,573. Holdener, S. Oct. 6, 1925, [Convention date]. Reversing-gearing; securing wheels on shafts.- Reversing-gearing suitable for machine tools comprises a toothed wheel 13 driven alternately in opposite directions through idlers 11, 12, respectively., which are carried in a frame 10 which rocks. The wheel 13 is constantly immersed in oil in a casing 1 and is fitted with a dash-pot shock-absorber utilizing the oil. The driving- shaft 3 carries a pinion 4 constantly meshing with an idler 5 supported by the casing 1. The rocker 10 has arms 8, 9 which carry the pinions 11, 12, respectively, which mesh constantly with the wheel 13 upon a sleeve 14 which is loose upon a, countershaft 7. The wheel is driven in one direction or the other according as the pinion 12 meshes with the pinion 4 or the pinion 11 meshes with the idler 5. In each case with driving rotation in the direction of arrow A, the reaction of the wheel 13 causes the pinion on the frame to be pressed into engagement. Power passes from the wheel 13 through the shock-absorbing coupling to the sleeve 14 and thence through a pinion 15, Fig. 1, to a wheel 16 fast on a driven shaft 18. Reversal is effected periodically by a loose wheel 28 which is driven by a pinion 29 fast on the driven shaft 18. This control wheel carries a lug 27, Fig. 3, which strikes one or other of two springs 30 upon the rocker 10, thus carrying the rocker from one gear position to the other. Adjustable stops 31, 32 limit the displacement of the rocker. To stop the drive, a control shaft 34 is turned by a handle 33 into the position shown in Figs. 2 and 6 when a pair of lugs 35. 36 extend transversely between abutments 37, 38 upon the rocker, holding the rocker in mid position. To start the drive, the handle 33 is turned through a right angle. A projection 40, Fig. 6, engages the end of a spring 41 and thrusts the rocker to one of its gear positions. A telescopic spring toggle link 45, Fig. 5, helpsf to throw the rocker completely over on each reversal. Excess of oil is used to cushion shock on. reversing by causing it to circulate by vanes 23, 25, Figs. 1 and 3, on the wheel 13 and sleeve 14 respectively. The wheel 13 has a cylindrical cavity closed by a disc 21 integral with the sleeve. Relative motion of the vanes causes oil to be sucked in and thrust out through apertures 26 in the disc 21.
Patent GB-337848-A (GB)
Title: Improvements in or relating to pressure filters
IPC: B01D25/12
Filed: 1929-08-14
Abstract: 337,848. Hoffmann, J., and Kriebernigg, T. Aug. 14, 1929. No Patent granted (Sealing fee not paid). Filters having sheet filtering- materials. - A pressure filter has mechanical devices for unlocking and opening the container, ejecting the filter cake, opening and closing the inlet valve &c., all controlled by cams on a shaft driven by means of a clutch which is brought into engagement by a clutch-operating element, the movement of which has an adjustable amplitude. A filter cylinder 1 is closed at one end by a piston 3 and at the other by a cover 4, which is mounted on hinges and held in the closed position by claws 5. A plate 11 is loosely mounted on the cover, joint being made by a packing ring 12, which on a rise of pressure within the cylinder is subjected to pressure, by studs 13 which are connected to levers 15 the opposite ends of which are connected to studs 14 passing through the cover and engaging the plate 11. The liquid under treatment is admitted to the cylinder through a valve 16, filters through cloths on the inner fluted faces of the plate 11 and the piston 3 and is discharged through openings 37. The cake deposited within the cylinder is discharged at intervals by the piston 3 after the valve 16 has been closed and the hinged cover opened. The opening and closing of the valve, the movements of the claws 5, cover 4, and the piston are all controlled by cams on a shaft 6 which comes to rest for a definite period, corresponding to the period of filtration, after each complete rotation. The shaft 6 is driven from a shaft 7 by gearing 17, 18 which is connected to the shaft 6 by a clutch 19. The shaft 7 is screw-threaded and carries a two-part nut 21 guided by a rod 22 which slides in bearings 23. The nut 21 moving on the shaft 7 causes a stop 24 on an arm 25 on the rod 22 to turn a lever 26 and bring the clutch 19 into engagement. At the same time the nut 21 is opened by an arm 28 which contacts with an abutment 30, and the rod 22 and the nut are drawn backward by a counterweight 31 to a position in which the arm 28 is turned back by an abutment 34 and the nut caused to close on the screw-thread. Motion then begins in the opposite direction. The shaft 6 after completing one revolution comes to rest, its period of rest and therefore the filtration period, being determined by the rate of rotation of the shaft 7, the pitch of its screw and the distance apart of the abutments 30, 34, which can be adjusted as desired.
Patent GB-1422986-A (GB)
Title: Photographic silver halide materials contraining colour couplers
IPC: G03C7/388
Filed: 1973-05-24
Abstract: 1422986 Photographic silver halide coupler containing emulsions EASTMAN KODAK CO 24 May 1973 [25 May 1972] 24841/73 Heading G2C A photographic silver halide emulsion contains finely divided particles comprising a colour coupler and a coupler solvent of the Formula:- where each R is 3-15C alkyl and each n is 0, 1,2, 3 or 4. The colour coupler may be dissolved in an organic solvent system comprising a coupler solvent of the Formula above and the resulting solution may be dispersed in an aqueous hydrophilic colloid solution which may then be added to a silver halide emulsion. The organic solvent system may additionally comprise a low boiling auxiliary solvent having a water miscibility not exceeding 6-5 parts/100 parts water and a boiling point of 76‹-205‹C.
Patent GB-648850-A (GB)
Title: Improvements in or relating to bimetallic bushings
IPC: F16C33/12
Filed: 1947-09-10
Abstract: 648,850. Bearings. DEBROCK, M. L. Sept. 10, 1947, No. 24847. Convention date, Sept. 23, 1942. [Class 12 (i)] A bushing comprises a running surface of copper alloy and a backing of zinc alloy, the melting point of the running surface being higher than that of the backing.. A method of manufacturing the bushing comprises first casting a copper alloy part, working said part to the definite operative size in the region which will be surrounded by the'more fusible alloy adopted to act as a support, and working said part to a blank operative size in other regions. The copper alloy part is then introduced into a mould and the zinc alloy in a molten condition and at the appropriate temperature also introduced into the mould, so that it becomes coalesced to the copper alloy part. This is then allowed to set, and after demoulding, the outer surface of the bushing is finished off.
Patent GB-294795-A (GB)
Title: Metallurgical process
IPC: C22B9/04
Filed: 1927-09-22
Abstract: 294,795. Vacuumschmelze Ges., Gruber, H., Rohn, W., and Weber, O. H. Sept. 22, 1927. Dissociating iron conpounds by heat in vacuum.-A process for the production of iron from its compounds which are capable of being dissociated at an elevated temperature, particularly from oxides and sulphides, consists in submitting such compounds, in a solid or fused state, to a vacuum exceeding the dissociation tension corresponding to the temperature of the compounds to be dissociated until the dissociation into solid or molten metal and volatile metalloid has been completed. Compounds which are not suitable for this process may be first transformed by known methods such as oxidation or reduction, into suitable oompounds. Approximate corresponding temperatures and pressures are given in the Specification for copper and nickel oxides. Compounds having a melting point above that of the corresponding metals may be decomposed in a solid state, and the temperature then raised to at least the melting point of the metal to separate a regulus from the gangue or slag. The metal obtained may be cast in vacuo in moulds combined with the melting furnace or run off. Iron oxides can be reduced to iron or, with other oxides, worked up into alloys. Iron practically free from phosphorus can be obtained from phosphatic iron ores.
Patent GB-1510375-A (GB)
Title: Suppression of unwanted lasing in laser isotope separatio
IPC: H01S3/113
Filed: 1975-06-11
Abstract: 1510375 Producing selective excitation by means of electromagnetic radiation JERSEY NUCLEAR-AVCO ISOTOPES Inc 11 June 1975 [25 June 1974] 25028/75 Heading G6P [Also in Division H1] In an isotope separation system in which uranium isotopes are selectively excited by laser radiation, the tendency for the resulting population inversion to initiate self lasing in the system is prevented by incorporating one or more suppressors. This may take the form of a reflective or absorptive filter, which may be an obliquely inclined plate of coated or uncoated glass or quartz, providing either a bandpass filter transmissive at the one or more frequencies of the exciting laser radiation or a band elimination filter for the self-lasing wavelengths. Other forms of filter are dispersion and recombining gratings combined with cylindrical mirrors and a mask apertured to pass the exciting laser wavelengths, or the combination of dispersion prisms, converging lens and an apertured mask.
Patent GB-822740-A (GB)
Title: Improvements relating to the production of hard and flexible microcrystalline waxes
IPC: C10G73/42
Filed: 1956-08-16
Abstract: A single-stage solvent recrystallized brightstock slack wax feedstock is separated into hard and flexible waxes by: (a) dissolving the feedstock in a wax solvent in which urea is insoluble; (b) adding solid urea and agitating at an elevated temperature to cause the straight-chain hydrocarbons in the wax to form an adduct with the urea; (c) filtering of the adduct; (d) recovering flexible wax from the filtrate by distilling off the solvent; (e) heating the adduct in a fresh quantity of the same solvent whereby solid urea separates and the wax is dissolved; (f) separating the urea by filtration and adding it to a fresh batch of feedstock; and (g) recovering hard wax from the filtrate by distillation.  Preferred solvents have a boiling point not less than 230 DEG  F. (since decomposition of the wax/urea adducts does not occur sufficiently below this temperature), examples being xylene, toluene, and mixtures of xylene and isohexyl or isoamyl alcohol.  Urea is preferably added in a weight ratio of 0.25 to 5 parts of urea per part of wax and the mixture agitated at 125 DEG  to 170 DEG  F. for 1 to 6 hours.  Previously prepared adduct may be added to initiate or accelerate the adduction.  A hard wax is defined as having a penetration of less than 15 mm/10 and a flexible wax as being capable of flexing (as a 1/4 inch wide, 1/8 inch thick strip) through 70 DEG  C. at least 20 times at 0 DEG  C.
Patent GB-1038666-A (GB)
Title: Improvements in cameras
Inventor: ZAPP WALTER
IPC: G03B17/02
Filed: 1963-06-25
Abstract: 1,038,666. Miniature cameras. MINOX G.m.b.H. June 25, 1963, No. 25240/63. Heading G2A. A camera casing 1 has an objective 3, a viewfinder 4, 5, and a light-sensitive meter cell 6, all arranged in sunken positions. Across the front face of the camera is located a cover plate 8 which can move laterally on a parallel linkage system. The plate has apertures 9, 10 therein corresponding to the lens and meter openings, so that in the position of Fig. 2 the lens, meter, and viewfinder are all uncovered. When the plate 8 moves leftwards to its other extreme position (Fig. 1, not shown), these members are all covered. Plate 8 is supported by two links 12, 14, pivoted at 13, 15 respectively. The other end of link lever 12 carries a spring having a leg 18, which in the open position of Fig. 2 is drawn clear of the viewing opening 19, but in the closed position of Fig. 1 covers it up. The shaft 13 on which lever 12 pivots has secured to it another lever 20, to the upper end of which a rod 21 is pivoted. As plate 8 is drawn to the left to close the openings after an exposure, a nose 26 on rod 21 engages a plate 28, and draws it across against the action of a spring 29, so tensioning the shutter. At the same time a rack portion 22 at the end of rod 21 drives the film take-up roller 23 in direction 25, so winding on the film. A plate 33, engaged by the shaped end of a lever 32 actuated by lever 20, acts as a pressure plate for the film only at the relevant time, but releases the pressure at all other times.
Patent GB-322444-A (GB)
Title: Improvements connected with sealing chambers for electric cables
IPC: H02G3/08
Filed: 1928-09-03
Abstract: 322,444. Callender's Cable & Construction Co., Ltd., and Wilson, A. E. Sept. 3, 1928. Connection fittings. - A sealing-box 1 fitted to the inlet of a fuse box &c. 7 is provided with an end entrance 4 and one side entrance 5, a sliding connection between the sealing box and the fuse box &c. being provided so that the side entrance can be turned either to one side or the other. The sealing box 1 may be made in two symmetrical parts and is provided with flanges 6 that slide into grooves formed by projections 8 on the fuse box &c. 7. The box 1 is held in place by a projecting flange on a plate 14 that slides into the box 7 adjacent the flanges 6, or by a projection either on the lid of the box 7 or on a member or base that closes the box 7 when it is attached thereto. The lid &c. may be secured by a seal. Closure plates 22 fit the entrances 4, 5 and are punched out to form the cable inlet.
Patent GB-590619-A (GB)
Title: Improvements in moulds for moulding pie casings
IPC: A21C3/00
Filed: 1944-12-16
Abstract: 590,619. Moulds for pie casings. CHRISTIANSEN, E. Dec. 16; 1944, No. 25314. [Class 87 (ii)] The side wall 4 of the mould has a bevelled lower edge 5 which beds on a bevel 3 on the base 1. The wall 4 is removably secured to the base by lugs 6, 8, which are aligned by turning the wall 4.
Patent GB-1186732-A (GB)
Title: Foil Blade Support for the Fourdrinier Section of Paper Machines
IPC: D21F1/48
Filed: 1967-06-01
Abstract: 1,186,732. Papermaking. JOHNSON WIRE WORKS Ltd. 1 June, 1967 [7 Jan., 1967], No. 25368/67. Heading D2A. A support for foil blades under the wire of a papermaking machine comprises a tubular member with brackets on its upper surface to support one or more foil blades clear of and parallel to the tubular member, which also has at each of its ends a substantially horizontal flange projecting from an end plate that closes the end of the tubular member. Screw-threaded anchoring studs pass upwards through the flange on each side of the axis of the tubular member and have adjusting nuts above and below the flange to permit alignment of the support after the studs have been mounted on the frame of the machine. Fig. 3 is an end elevation and fig. 4 a section of such a support. The tubular member 12 carries brackets 26 to support two foil blades 10 on T-bars 28. The brackets are tied together by rods 32. The ends of the member are closed by end plates (one shown at 18) from which extend flanges 14 and 16. Anchoring studs 20 pass through the flange 16 and secure it by adjusting nuts 22. A series of these supports may be mounted successively under the wire of a papermaking machine (fig. 1, not shown).
Patent GB-748621-A (GB)
Title: Method of and apparatus for adjusting the spark-gap length in metal working apparatus by which metal may be eroded by sparking
IPC: B23H7/18
Filed: 1953-09-14
Abstract: 748,621. Cutting by spark discharge. DEUTSCHE EDELSTAHLWERKE AKT.- GES. Sept. 14, 1953 [Sept. 17, 1952], No. 25380/53. Class 83 (4). The spark-gap length in a spark erosion apparatus is adjusted by movement of the electrode by means movably responsive to heat generated by the sparking current fed to the electrode. A bimetallic strip 1 mounted on an insulated member 5 supports the electrode 3 such that the electrode normally presses on the workpiece 4, e.g. a tool tipped with haid metal. The electrode is connected to the supply through a winding 2 which surrounds the strip 1 and/or through the strip and the current supplied heats the strip which bends upwardly and moves the electrode from the workpiece. A closed resilient curved tube filled with a gas or liquid may be employed instead of the strip wheiein the fluid on heating expands to extend or flex the tube and thus move the electrode. A constantly progressing forward feed of the electrode may be employed for coarse adjustment.
Patent GB-156348-A (GB)
Title: Garment hanger
IPC: A47G25/06
Filed: 1919-10-17
Abstract: 156,348. Mitchell, W. Oct. 17, 1919. Garment racks.-A garment-hanger comprises a bracket 1 secured to a wall, &c., and fitted with a block 2 having at the bottom an arcuate recess 3 which is adapted to be engaged by the end of a garmentcarrying rod 5. The rod 5 is supported by a wire loop 4 pivoted to the block 2.
Patent GB-445690-A (GB)
Title: Improvements in or relating to the destruction of insects and the like
IPC: A01M13/00
Filed: 1934-09-04
Abstract: Insects and other vermin in closed spaces are destroyed by raising the temperature and circulating products of combustion by means of a portable stove provided with air circulating means.
Patent GB-1029245-A (GB)
Title: Improvements in or relating to the production of carbonaceous bodies containing carbides
Inventor: MOORE NORMAN CLEMENT
IPC: C01B31/30
Filed: 1961-07-14
Abstract: A carbide dispersed in a matrix of impermeable carbon is prepared by mixing a phenolic resin with an element, e.g. U or Th, or with its oxide or a compound which decomposes on subsequent heating to give the oxide, e.g. acetate; heating to cure the resin, and further heating to carbonize the resin and form the carbide.  Alternatively, the resin can be precured, mixed with the element or its compound, hot-pressed, and carbonized; or resin precursors may be mixed with the element or its compound, followed by polymerization, curing and carbonization as before. Resins used are of the phenol-aldehyde type, e.g. phenol-formaldehyde resol or novolak, or those obtained from cresols or xylenols by reaction with formaldehyde or furfuraldehyde. Carbonization is carried out in vacuo or in an inert or reducing atmosphere using the heating schedules as described in Specification 956,452.
Patent GB-181310-A (GB)
Title: Arrangement for changing the speed and direction of motor car vehicles and for other applications
IPC: F16H15/20
Filed: 1921-09-27
Abstract: 181,310. Castel de Courval, G. June 6, 1921, [Convention date]. Addition to 169,463. Variable - speed gearing. - The invention described in the parent Specification comprises an epicyclic train controlled bv a cone and roller variable gear, drive being possible only when the roller is in engagement with its cone. According to this invention, driving and driven shafts 9, 45, Fig. 1, are in alignment, and a portion 8<1>, Fig. 4, of the cone 8 may be connected by a pawl 54 to the shaft 9 so as to overrun when, say, the engine upon a vehicle fitted with the gear stops. The cone 8 is wholly or in part splined to the shaft 9 to which is secured the carrier 40, Fig. 1, of planet pinions 41. The pinions 41 mesh with a gear 44 secured to the tail shaft 45, and with a gear 43 connected by a sleeve loose on the shaft 9 to a gear 46. The gear 46 is entrained with a number of shafts 16, 16<1> upon which the rollers 15, 15<1> are splined and adapted to be moved in unison to vary the speed. When the rollers reach a gap 14 in the cone 8, the drive is reduced to zero. The drive may be stopped at any time by sliding the cone in the direction of its thick end.
Patent GB-286998-A (GB)
Title: Improvements in handles for lifting jacks
IPC: B66F13/00
Filed: 1927-09-29
Abstract: 286,998. Shelley, Ltd., R. T., and Lawrence, E. G. Sept. 29, 1927. Jacks.-The handle of a lifting-jack is jointed so that the two parts can be folded into parallelism or be rigidly secured in the operative position by means of a sleeve sliding over the joint. The two parts A, B, of the handle have recessed ends f to which a link g is pivoted by pins h, the corners of the link being rounded at one side k to permit folding in one direction only. By sliding a sleeve d over the joint until it contacts with a stop m the handle is rigidly secured in the operative position.
Patent GB-870268-A (GB)
Title: Compound gas turbine engine
Inventor: RAE RANDOLPH SAMUEL
IPC: F02K9/78
Filed: 1957-08-14
Abstract: 870,268. Generating combustion products under pressure. GARRETT CORPORATION. Aug. 14, 1957, No. 25720/57. Class 51 (1). [Also in Group XXVI] The combustion chamber of a jet-propulsion engine comprises inner and outer chambers 55, 57 (Fig. 5), air from the compressor being fed to the space between the chambers from a chamber 54. The inner chamber is provided with a plurality of openings to allow the air to pass into it; gaseous fuel is fed to the inner chamber through a passage 62 which terminates in a convergent-divergent section, the divergent section containing a wire screen 64 which supports a catalyst serving to maintain combustion. The afterburner comprises a V- shaped support ring secured in position by a plurality of struts and carrying six flame holders 100, Fig. 7. Each of these comprises a conical section supporting a wire screen 102 on which is deposited a catalyst such as finelydivided platinum. Fuel is directed on to the screen through a passage 103 which terminates in a nozzle. Specification 870,271 is referred to.
Patent GB-749807-A (GB)
Title: Improved appliance for facilitating the application of ceiling paper to ceilings
IPC: B44C7/06
Filed: 1954-09-07
Abstract: 749,807. Paperhangers tools. SIMON, W. J. Sept. 7, 1954, No. 25879/54. Class 20(2). An appliance for holding one end of a strip of paper against a ceiling which is being papered comprises an adjustable strut 10, 11 on a spring post 16 and having fixed to the top two T- shaped divergent arms 18 the cross arms 22 of which engage the paper. The strut is held at any adjusted length by a screw 14 in a clamp 12 connecting the two parts of the strut. The strut may be formed of telescoping metal tubes.
Patent GB-675342-A (GB)
Title: Improvements in or relating to gas or vapour burner devices
IPC: F23D14/00
Filed: 1950-10-24
Abstract: 675,342. Hot gas engines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Oct. 24, 1950 [Oct. 27, 1949], No. 25883/50. Class 7(i) [Also in Group XI] A hot gas engine incorporates a gas or vapour burner 16, Fig. 3, comprising whirl chambers 17 supplied with a fuel-air mixture through tangential passages 21 from a swirl chamber 20. The burner flames are arranged to head internal fins 12 provided on the engine cylinder 22 which has internal fins 12 screend by a cylinder lining 13 receiving a piston 14. In a multi-cylinder engine each cylinder is provided with a burner and the supply of combustible mixture or of the fuel or air to all the burners may be controlled by a common throttle valve.
Patent GB-338951-A (GB)
Title: Improvements in wire conveyor belts
IPC: B65G15/54
Filed: 1929-08-26
Abstract: 338,951. Forrester, H. J. C., (Wichwire Spencer Steel Co.). Aug. 26, 1929. Flat endless-belt conveyers. - An endless-belt conveyer for high temperature service comprises a series of interlaced spiral members 10 formed of highly heat-resistant metal. Transverse contraction is prevented by a series of cross rods 12, abutments for the ends of which are afforded either by the coils of adjacent pairs of spiral members, or by longitudinally flexible selvages formed by pressing the end turns of the spiral members against each other. The belt may be flattened by pressure rolls. A suitable alloy for belts exposed to a range of temperature up to 1600‹ F. consists of 0.16-0.24 per cent of carbon, 17-18 per cent of chromium, 25-26 per cent of nickel, 2-3 per cent of silicon, and 55.84- 52.76 per cent of iron. Reference has been directed by the Comptroller to Specification 250,200.