baber/WOPTO huggingface dataset:
Patent GB-580848-A (GB)
Title: Improvements in or relating to process of making paper
IPC: D21H23/76
Filed: 1943-12-29
Abstract: 580,848. Paper resistant to water &c. AMERICAN CYANAMID CO. Dec. 29, 1943, No. 21802. Convention date, Dec. 19, 1942. [Classes 96 and 140] Paper of high wet strength, and high resistance to the penetration of water, ink, milk, lactic acid or blood serum &c. is made by beatersizing fibres, e.g., of sulphite, sulphate, ground wood, asbestos cotton, flax, straw, hemp jute, sisal, leather, or hair, glass or re-generated cellulose with free rosin and/or saponified rosin, alum or other acidic precipitant being used, drying or partially drying the web formed therefrom, applying a melamine-formaldehyde condensation product and polymerizing the same. The ratio of melamine to formaldehyde may be 1:1 1 to 6 and acid catalysts or ammonium sulphate or phosphate may be used. The resulting solution may be cooled, solidified, and ground, or crystals of trimethylolmelamine may be recovered. The condensation product may be applied as an aqueous dispersion, and ¢ to 5 per cent, may remain in the paper which may be heated to 200 to 450‹F. for 1 sec. to 10 minutes. Dyes, clay, barytes, calcium carbonate, lithopone, titanium dioxide, starch, waxes, soaps or glue may be included in the furnish, and the paper may coated with glue, casein, starch, wax, oil, clay, or calcium carbonate compositions.
Patent GB-245816-A (GB)
Title: Improvements in machines for shaping hats
IPC: A42C1/04
Filed: 1924-09-17
Abstract: 245,816. Mezzera, G. Sept. 17, 1924. Stretching in manufacture.-In a machine for shaping hat bats or fez over a mould A the edge of the bat is held by pincers B each having the shank of one jaw pivoted at D to the base of the machine and the shank of the other jaw engaged by a vertically sliding cone C. Cams on a shaft H driven by worm gearing co-operate with levers so that the bat having been positioned on the mould, the pincers are closed by the. descent of the cone C, the mould is then progressively thrust upward and then allowed to descend a number of times while a set of inclined rollers Z of rubber carried by a resilient frame W descend on the bat. These rollers are rotated by bevel gearing X. Balls of wood or rubber may be substituted for the rollers. In a modification, specially intended for fez, rollers engage the top of the bat only, and a spring ring carried by hinged arms smooths and stretches the bat downwards. This ring finally slips into a groove on the mould and holds the bat while the mould is removed from the machine. The pincers are adjustable radially. At the conclusion of one revolution of the cam shaft, the driving belt is automatically shifted to a loose pulley.
Patent GB-1131366-A (GB)
Title: Device for breaking electrical continuity in sodium amalgam produced in an electrolytic cell
IPC: C25B9/00
Filed: 1965-11-11
Abstract: 1,131,366. Device for breaking electrical continuity of amalgam produced in an electrolytic cell. PPG INDUSTRIES Inc. Nov. 11, 1965 [Nov. 12, 1964], No.22006/66. Divided out of 1,131, 363. Heading C7B. The subject-matter of this Specification is contained in the parent Specification but the claims are concerned with a device for breaking the electrical continuity of sodium amalgam produced in an alkali metal chlorine electrolytic cell assembly.
Patent GB-614750-A (GB)
Title: Improvements relating to the die casting of metals
IPC: B22D18/04
Filed: 1946-07-24
Abstract: 614,750. Casting-machines. BIRMINGHAM ALUMINIUM CASTING (1903) CO., Ltd., and BAKER, W. A. July 24, 1946, No. 22020. [Class 83 (i)] In casting metal by applying gas pressure at 7 to a melting pot 2 to force metal through a passage 1 into a removable die, e.g. as in Specification 516,231, the level of the metal in said passage 1 is kept constant, except when actually filling a die, by using the level of the metal in the pot 2 to control the gas pressure in the pot. The pot 2 has a valve 4 which is kept closed, when filling a die, by a cam 13 acting on a lever 9 connected to the valve. This has a refractory float 16 immersed in the molten metal to a depth depending on the level of the metal in the pot and the lever carries an adjustable weight 10. The cam 13 is, after casting, released and the gas in the pot escapes until the pressure is not enough to lift the valve and float, this pressure increasing as the level falls and exposes more of the float.
Patent GB-1003745-A (GB)
Title: Improvements in refractory mortars
IPC: C04B28/34
Filed: 1962-06-07
Abstract: A binder for refractories comprises a colloidal, viscous, aqueous solution of aluminium-chromium III-phosphate containing 20-95% of powdered iron and/or iron oxide.  Optional additions are (1) refractory filler which, when a composite article is to be formed from a number of refractory units, is of the same composition (or mean composition when the units are of different materials) as the units; (2) Agent inhibiting gas formation from reaction of the phosphate in the iron or oxide; and (3) a thermosetting and/or silicone resin for low temperature strength. By means of the binder bricks of e.g. magnesite, chrome are bonded to steel cases.
Patent GB-706220-A (GB)
Title: Improvements in or relating to apparatus for sharpening pointed instruments
IPC: B24D15/02
Filed: 1951-09-24
Abstract: 706,220. Sharpening pointed instruments. LOWY, F. Aug. 21, 1952 [Sept. 24, 1951], No. 22289/51. Class 60 An apparatus for sharpening a pointed instrument, such as a pin, needle, bradawl or dart, consists of a body portion 3, of abrasive stone, Fig. 3, formed with at least one conical cavity 2 having an abrasive surface which is truly conical and circumferentially continuous, so that the point of the instrument may be gyrated in contact with it. The body may be made from any desired abrasive mix, and to a circular, square, triangular, pentagonal or other cross sectional shape. The cavity may or may not extend through the body and two co-axial cavities entering the body from opposite sides may be provided. A number of cavities 25 maybe provided in a body formed as a many-sided figure as shown in Fig. 11. The cavities may differ in respect of their included angle and the grade of abrasive used. The Provisional Specification states that the body may be made from steel with a grooved cavity or, alternatively, from plastic or other material, the cavity being sprayed with abrasive material or provided with a removable abrasive liner, and that the cavity may have a paraboloidal or hyperboloidal shape.
Patent GB-821754-A (GB)
Title: Improvements in or relating to electrical resistances
Inventor: BRAZENDALE JAMES DEREK
IPC: H01C3/10
Filed: 1957-07-15
Abstract: 821,754. Electrical resistances. MARCONI'S WIRELESS TELEGRAPH CO. Ltd. March 18,1958 [July 15, 1957], No. 22328/57. Class 37. A resistance device suitable for use as a load for a radio transmitter comprises a plurality of metal plates 3 mounted face to face and at least one length of conductive tape 2, e.g. a nickel-chromium alloy, wound zig-zag fashion back and forth between the faces of said plates with different parts of this length clamped between different adjacent pairs of plates and insulated therefrom by insulating material 6. The face area of each plate is large compared with that of the section of tape adjacent to the said plate so that the plates project beyond the tape to provide cooling surfaces. The tape may be woven from conductive and insulating materials such as glass and wire, in such a manner as the insulating material prevents the wire from touching the plates. The plates may be provided with arcuate shaped ends 4 to fit over insulating rods 5, the plates being assembled such that alternate plates have their arcuate ends upwards and remainder down-. wards. The assembly is clamped together in any convenient manner, for example by end clamping pieces 7.
Patent GB-924917-A (GB)
Title: Improvements in or relating to single lever operating controls
Inventor: BUDDO CHARLES WHITNEY
IPC: B63H21/22
Filed: 1961-06-20
Abstract: 924,917. Change-speed control. CHARLES WHITNEY BUDDO Ltd. June 20, 1961, No. 22334/61. Class 80 (2). A control unit for conjoint operation of a motorboat throttle and forward-and-reverse gear comprises a single lever 42 operating slides 22, 23 mounted in spaced horizontal channelshaped guides 20, 21 and connected to operating cables 24, 35, respectively. The lever 42 is secured to a gear-wheel 44 meshing with a pinion 54 carrying a crank arm 55 connected to a link 59 having a lost-motion pin-and-slot connection with the throttle-operating slide 22. The gear-operating slide 33 is formed as a rack meshing with a toothed sector 51 carried by a spindle 45 on which is mounted a Geneva cam 47 engaging a disc 43 integral with the gearwheel 44. By this means movement of lever 42 in either direction from its neutral position causes forward or reverse movement of slide 33, followed by movement of slide 22 to open the throttle. To allow operation of the throttle without engaging gear, cam 47 may be disengaged from toothed sector 51 by axial movement of spindle 45 against a loading spring 45b. Spring arms 100, 102 prevent disengagement of the cam and toothed sector once they have been moved to engage gear.
Patent GB-1513841-A (GB)
Title: Protective helmet
IPC: A42B3/12
Filed: 1976-05-28
Abstract: 1513841 Protective helmets KENDALL CO 28 May 1976 [5 June 1975] 22439/76 Heading A3V  A protective helmet comprises a shell 32 containing an impact absorbing liner which has superposed fluid filled chambers 52a, 52b, the chamber 52a nearer the wearers head being more easily compressible than the other chamber. The liner chambers are formed as nestable hollow spoked members, Fig. 7, and are inflatable at points 68a and 68b. The liners are retained by resilient pads 70 attached to the helmet by hook and loop fasteners 72 in the spaces between the spokes of the liners. Jaw pads 120 are constructed as foam filled chambers with holes for the exit of air through snap fasteners by which they attach to the helmet. A sweat band 96, Fig. 11, extends over the front rim of the helmet and helps retain a front pad 90. A chin pad 162, Fig. 20, is fixed to the helmet by two straps 148, 150 which connect to the helmet by sliding fasteners, Fig. 1 (not shown). Ventilation holes 44 through the top of the helmet communicate with the spaces between the liner spokes above the retaining pads 70.
Patent GB-183372-A (GB)
Title: Improvements in or relating to apparatus for delivering grease or other viscous substances
IPC: F16N3/10
Filed: 1921-08-24
Abstract: 183,372. Trier, F. H. Aug. 24, 1921. Piston packing. - Apparatus for discharging grease &c. from containers comprises a piston S provided with a cup-leather T and a bevelled perforated ring U, which protects the cup-leather during insertion into the container and smooths out indentations &c. in the wall of the container.
Patent GB-188110-A (GB)
Title: Improvements in or relating to seats for motor-driven and other vehicles
IPC: B60N2/20
Filed: 1921-08-24
Abstract: 188,110. Robinson, R. Aug. 24, 1921. Seat adjustments; sliding rests.-In adjustable sliding seats for motor &c. vehicles, the back 1 is hinged at 2 to the seat frame 3, and is mechanically connected to the locking bolt 10, so that when the seat is in its normal position, the bolt is free to engage slots on a box or rail 7 on the vehicle to lock the seat in position, whilst, when the seat back is rocked forwardly of its hinge the bolt is raised out of engagement and the seat is free to slide. The seat frame 3 is mounted on a box frame 5 provided in the flanges 6, which enter the channels of the rails 7 fixed to the flooring 8 of the vehicle, the weight of the seat being carried by wheels 9 mounted in roller bearings, which run on the rails 7. The box 5 is fitted with a bolt 10 sliding vertically in guides, and kept normally in engagement by a spring 11. The upper end of the bolt is pivoted to a lever 12, pivoted at 13, which has a rearward extension to allow of the bolt being operated by hand. The hinged back 1 has pivoted to it at 14 a lever 15, which carries the seat arm 17, and a bar 18 pivoted at 19, is pivoted to the forward end of the lever 15. At its lower end the bar 18 is bent beneath the seat and is pivoted to one end of a link 20, the opposite end of which is pivoted to one arm of a bolt-operating lever 21, pivoted to the side of the box 5, the other arm of the bolt lever being formed with a tooth located beneath the bolt lever 12. When the seat lock is rocked forwardly to raise the bolt a stop 22 limits its movement, and in its normal position the rear arm of the lever 15 extends beneath the bearing face 16 of the back and forms a rear stop. The box 5 may be fitted with a door and act as a tool-box and a locking bolt may be provided at each side of the seat.
Patent GB-1347138-A (GB)
Title: Magnetic brush development apparatus
IPC: G03G15/09
Filed: 1971-04-19
Abstract: 1347138 Electrographic developing apparatus XEROX CORP 19 April 1971 [24 Feb 1970] 22491/71 Heading G2H Toner is applied to a latent image bearing surface, e.g. a drum 1, by means of a magnetic brush 11 which is inclined to the direction of movement of the surface. It is stated that this minimizes streaking. As described, the magnetic brush is formed by a non-magnetic tube rotating about a stationary magnet or magnets. The brush 11 is formed into a concave shape, e.g. by means of a doctor blade (20), Fig.4 (not shown) or by means of a non-uniform magnetic field distribution, or by appropriately shaping the tube (40), Fig.5  (not shown). The brush may be vibrated transverse to the direction of drum movement.
Patent GB-1074011-A (GB)
Title: Method and apparatus for processing ores
IPC: B03B1/00
Filed: 1964-06-01
Abstract: Separation of a mineral from an ore of the type having fused interfacial boundaries is achieved by contacting the ore in a charge zone with steam or other inert fluid, under pressure, passing the fluid and ore toward a discharge zone while preventing release therefrom of any substantial amount of the energy impressed thereon by the steam or other inert fluid and thereafter projecting the ore and steam or other inert fluid into the discharge zone to release the said energy suddenly. Suitable ores may be serpentine rock containing <PICT:1074011/C1/1> chrysolite fibres, particularly asbestos; hydraulic sands containing collophane; a phosphate ore containing tri-calcium phosphate; evaporites; intrusive igneous rocks and sedimentary rocks unmetamorphosed by heat. In Figs. 1, 2, ore of particle size \sO 1/4 outlet 11 diameter is controllably discharged from feed hopper 1 into chamber 2 the lower portion of which is formed as hopper 5 within which arch reliever 8 is positioned.  The charge fraction in chamber 2 varies with the apparent density, friability, particle size and size distribution of the charge. Closure means 4 is closed, and steam injected into chamber 2 through line 6 for say five to ten seconds up to say 200 to 1200 p.s.i. depending on the ore.  When the pressure has been maintained for a short time, valve 7 is closed and actuator 13 opens quick-opening valve 12 to discharge steam and ore through elbow 14 and line 15, the size of 11, 12, 14 and 15 being such that energy release takes place only in vacuum receiving chamber 16 which is preferably larger than chamber 2, e.g. 50 times larger, and is provided with wear plate 22 positioned on the interior surface and outlet pipe connecting through condenser 18 to vacuum source 19.  Any degree of vacuum may be maintained in 16 such as to cause energy release within a relatively small blast zone 23. The separated mineral components settle into the lower portion of vessel 16 and are discharged through outlet 20.
Patent GB-260535-A (GB)
Title: Improved fire extinguishing liquids
IPC: A62D1/00
Filed: 1926-09-13
Abstract: 260,535. Knock-out Fire Extinguishers, Ltd., (Soc. Bouillon Freres). Sept. 13, 1926. Chemicals. - Fire-extinguishing liquids, such as carbon tetrachloride, tetrachlorethane, &c., which form phosgene upon decomposition by heat, are mixed with a substance which prevents the formation of phosgene, such as an aromatic hydrocarbon, sulphochloride of thiocarbonyl, &c. A fatty substance, such as a fatty acid, an animal or vegetable grease, &c., is added and is stated to form a kind of coating on a burning body and to lubricate the extinguishing apparatus. An example of a liquid given is composed of 160 kgs. of carbon tetrachloride, 1-25 kgs. of naphthalene, and 1-2 kgs. of sulphoricinate of soda.
Patent GB-688213-A (GB)
Title: Improvements in continuous production of metallic zinc from oxidic zinc ores
IPC: C22B19/18
Filed: 1949-08-31
Abstract: 688,213. Furnaces for distilling zinc. BREYER, F. G., and DELRUELLE, A. Aug. 31, 1949 [Feb. 24, 1949], No. 22615/49. Class 51 (ii) [Also in Group II] A furnace for reduction of oxidic zinc ore (see Group II) comprises a travelling grate for passing a bed of reacting material through an elongated furnace chamber, means for forming on the grate a gas-pervious ignited bed of ore and fuel at the reduction temperature, the gas chamber over the grate being closed to exclude air therefrom, wind boxes being arranged below the grate for blowing oxidising gas upward through the grate and a closed gas off-take extending from the top of the chamber and being directly connected to a zinc condensing and collecting system which is also closed to exclude air. As shown in Fig. 1a hoppers 30 and 34 are provided for feeding carbonaceous fuel and a mixture of fuel and ore in succession on to a travelling grate 3. The fuel layer is ignited in chamber 16 and the superimposed fuel-ore mixture in chamber 17. The main zinceliminating reaction takes place in heat-insulated chamber 18, residual zinc being removed as oxide in chamber 19 and the spent material is discharged from the grate in chamber 20 into a receiver 38. Levellers 23, 24, 25, 26 serve to control the thickness of the bed of material on the grate and to isolate each chamber from ingress of air and other oxidising gases. Gases from the chambers are removed via ducts 16d, 17d, 18d, 19d and 20d. Oxidising gas for ignition and zinc-eliminating reactions is provided by wind boxes 16a, 17a, 18a, 18b and 18c, 19a and 19b, the blast from each being independently adjustable. The gas may be humidified by contact with water columns w. Specification 688,252, [Group II], is referred to.
Patent GB-1482930-A (GB)
Title: Removing metal ions from solution
Inventor: DAVIS ERIC J
IPC: B01D15/04
Filed: 1974-05-21
Abstract: 1482930 Removal of metal ions from solution LAPORTE INDUSTRIES Ltd 5 May 1975 [21 May 1974] 22640/74 Heading C1A Metal ions, capable of forming co-ordination complexes, are removed from aqueous solutions by contacting the solution with a complexing agent comprising a water insoluble inorganic substrate, having a cation exchange capacity of at least 0À5 m.eq./g., which has onium cations (as defined) ionically bound to the substrate. The substrate is preferably a clay mineral having a layered anionic lattice based on Si or P, e.g. layers of linked SiO 4  tetrahedra, e.g. a member of the smectite group or a bentonite clay mineral. The complexing agent may be used as a bed through which the metal containing solution may be passed or the agent can be slurried in the metal containing solution and the metal loaded agent separated by filtration. Examples are given of the removal of Hg, Na, Cu, Fe, Ni, Al, Co, Mg, Cr, Mn, Zn and Cd ions from solution.
Patent GB-734857-A (GB)
Title: Improvements in and relating to aperture stoppers
Inventor: PARKIN LESLIE
IPC: B65D39/00
Filed: 1952-09-09
Abstract: 734,857. Stoppers. CARR FASTENER CO., Ltd. Aug. 11, 1953 [Sept. 9, 1952], No. 22657/52. Class 125 (3). [Also in Group X] An inspection opening or like aperture in a sheet or panel has a cover member 1 formed of sheet metal and a pair of sheet metal arms arranged at right angles across diameters of the member 1. Resilient tongues 6 stamped from the arms and having the shape shown engage behind the edges of the aperture in the panel. The arms are secured in the recess formed by the peripheral inturned flange 9. Lugs 10 are provided on the arms to secure them together..
Patent GB-656625-A (GB)
Title: Improvements relating to the control of synchronous dynamo electric machines
Inventor: GRAY ALBERT HILLIARD
IPC: H02P9/10
Filed: 1948-08-27
Abstract: 656,625. Automatic control systems for alternators. METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Aug. 27, 1948, No. 22664. [Class 38 (iv)] [Also in Group XXXVI] A generator is controlled by an instrument comprising a shaft 2 acted on by a controlspring 3, by a wattmeter section 8, 8 fed from the output of the generator 9, and by a dynamometer section 10, 12 producing a torque proportional to the product of the exciting current from 13 and the output voltage of the generator, so that as instability is approached contacts 4, 5 are closed to initiate operation of controlling apparatus.
Patent GB-1493307-A (GB)
Title: Method and apparatus for forming colour images
IPC: H04N9/07
Filed: 1975-05-23
Abstract: 1493307 Colour image formation OPTISCHE INDUSTRIE DE OUDE DELFT NV 23 May 1975 [30 May 1974] 22715/75 Heading H4F [Also in Division G2] Colour image formation which enables clear distinction between similar colours is effected by splitting the radiation spectrum from the scene according to two wavelength regions 20, 21, Fig. 2, the two resulting spatially separated images being intensified by one or more image intensifier tubes 19, and the intensified separate images thus produced on the last anode being superimposed with each image in a different colour. This arrangement can be used to distinguish between colours, including infra-red, which normally cannot be distinguished by the human eye. In Fig. 2 the image is split by prisms 8 and 9 with a wavelength separating dielectric layer or metallic mirror 10 therebetween. The wavelength division between the two images may be 750 nm. or one image may include wavelengths in the range 500-650 nm. The combining of the two images is effected by prisms 24, 25 and dielectric layer 26, the anode 22 comprising different colour phosphors for the two images or different colour filters being provided in each image path before they are combined. The filters may be provided on anode 22 or between the optical fibre plate 23 and the prism system 24, 25. Various other colour splitting and combining systems are described which utilize prism arrangements designed to reduce colour shifts resulting from polarization (Fig. 4, not shown); semi-permeable or striped mirrors and colour filters (Figs. 5, 6, not shown); polarization image splitting #/4 plate and colour filters (Fig. 7, not shown); and image splitting systems used before the object lens (Figs. 8, 9, not shown) and including light absorbing layers to eliminate the interfering half of the field of view. To enable the colour splitting system to have a large diameter equal to that of the object lens a plurality of such systems may be arranged side-by-side (Fig. 10, not shown) or a system such as that shown in Fig. 11 employed which includes two plane mirrors 401, 402 and a colour splitting layer 404, e.g. a dielectric mirror layer or #/4 layers. A plurality of mirror arrangement 401, 402 may be placed adjacent one dielectric mirror 404 (Fig. 12, not shown).