baber/WOPTO huggingface dataset:
Patent GB-125677-A (GB)
Title: Improvements in and relating to the Production of Ammonium Perchlorate.
Inventor: BAILEY CLEMENT WILLIAM
IPC: C01B11/18
Filed: 1918-01-18
Abstract: 125,677. Bailey, C. W., Denny, H. S., and Dunk, A. J. Jan. 18, 1918. Ammonium perchlorate.-Relates to the production of ammonium perchlorate by the interaction of ammonium sulphate and sodium perchlorate in the presence of water. According to the invention, sodium perchlorate is added to the mother-liquor obtained by causing ammonium sulphate and sodium perchlorate to react in the presence of water at about 30-35‹ C., the temperature is raised to about 100‹ C. to cause the separation of anhydrous sodium sulphate, and ammonium sulphate is then added to the residual solution cooled to about 30-35‹ C. to effect the precipitation of ammonium perchlorate; the mother-liquor obtained is then treated in succession with sodium perchlorate and ammonium sulphate as set forth above.
Patent GB-1521613-A (GB)
Title: Parasitic oscillation suppressor for electronic tubes
IPC: H01J19/80
Filed: 1976-01-12
Abstract: 1521613 Discharge tubes THOMSON-CSF 12 Jan 1976 [14 Jan 1975] 01074/76 Heading H1D Parasitic oscillations in power tubes having coaxial electrodes arranged one outside another are suppressed by a component of electrically conductive material, in the form of a cylinder with a flange, and incorporating a plurality of R.L.C. resonance circuits, tuned to the frequency of the parasitic oscillations and each including an inductive opening and a capacitive slot, the shape of the flange and the angle it makes with the cylinder being arranged to minimize the impedance discontinuity introduced by the component. In the embodiment shown in Figs. 5 and 6, the cylinder 1 has five sets each of two openings 15 coupled by a capacitive slot 17; the flange 2 has five sets of three openings 25, 26 and 27 coupled by two slots 28, the central openings 25 being disposed radially further from the axis than the other two; and adjacent cylinder and flange sets are coupled via slots 16. The resistive elements of the circuits may be provided either by the material, e.g. graphite or steel, of the component, or by lumped resistors constituted by coatings 29, e.g. of ferrite, around the periphery of the inductive openings, in which case the component may be of copper. Preferably both the flange and the cylinder incorporate an odd number of sets of circuits. Reference is made to locating the component between the anode and the tube base, between the anode and the final grid, and in the central part of the anode itself.
Patent GB-157196-A (GB)
Title: Improvements in the cinematograph projection of coloured and other images
IPC: G03B41/08
Filed: 1921-01-10
Abstract: 157,196. Belin, E. May 5, 1914, [Convention date]. Drawings to Specification. Kinematograph picture films.-The perforations are disposed in transverse strips between successive images. For use with a three-colour filter in colour kinematography each image recurs three times in immediate succession on the film.
Patent GB-1077012-A (GB)
Title: Improvements in or relating to azepines and the manufacture thereof
IPC: C08G18/20
Filed: 1964-08-04
Abstract: Compounds of the general formula <FORM:1077012/C2/1> wherein R1 and R2 are C1- 4 alkyl groups, R3 is H or C1- 4 alkyl are prepared by reacting a compound of the formula <FORM:1077012/C2/2> with P2S5.
Patent GB-508111-A (GB)
Title: Shims for milling machinery
IPC: B23Q1/70
Filed: 1938-01-14
Abstract: 508,111. Cellulose derivative and regenerated cellulose shims for. milling- machines. SCHOENWERK, A. Jan. 14, 1938, No. 1295. Convention date, Jan. 15, 1937. [Class 2 (ii)] Shims or spacers of annular shape as used in milling operations when mounted on milling arbors are made from film, ribbon, foil, plate, or like material of cellulose acetate, celluloid,. ur other cellulose ester or ether, or regenerated cellulose such as that obtained from viscose. The shims may, be punched out of the film material which may be obtained in different standard thicknesses down to 0À00075 inches. The film material may be obtained in different colours, each colour corresponding to a particular thickness. The shims may be provided with incisions corresponding in.space to the key or other projections of the milling arbors or cutters. Their use enables a milling cutter. to be accurately located on the arbor, and the width of slots between two cutters of a set of cutters mounted on an arbor to be accurately adjusted.
Patent GB-1515481-A (GB)
Title: Adhesive cartridge for securing anchor in borehole
IPC: F16B35/04
Filed: 1977-01-13
Abstract: 1515481 Adhesive cartridge BERGWERKSVERBAND GmbH 13 Jan 1977 [17 Sept 1976] 01297/77 Heading BSC A resin cartridge for securing a rock bolt in a bore hole comprises a destructible envelope formed of an extruded synthetic resin mixed with a filler, a mass of one component of a two component adhesive in said resin envelope; and a mass of the other component of said adhesive in said envelope juxtaposed with the first mentioned mass. There may be provided a partition separating said masses, the first mass being a hardenable resin and the second mass being a suitable hardener. The filler may be a combustible material, e.g. lignite, or rock. The synthetic resin may be an addition polymer. A suitable cartridge is shown in Fig. 1, the hardener being contained in glass tube 3 which is embedded in a mass 10 of hardenable resin.
Patent GB-1179544-A (GB)
Title: Gas-Discharge Display Tube
IPC: H01J17/49
Filed: 1969-01-09
Abstract: 1,179,544. Glow discharge lamps. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 9 Jan., 1969 [12 Jan., 1968], No. 1305/69. Heading H1D. A cold-cathode gas-discharge display tube for simultaneously displaying two independently switchable characters from two arbitrary groups includes a plurality of mutually insulated cathodes each comprising a frame 1 enclosing a character 3 from one group and. a space through which characters from the other group can be seen. The frames 1 are preferably rectangular as shown, but may be circular, with characters from one group mounted in the upper half of a frame and characters from the other group mounted in the lower half. Alternatively, characters from the two groups may be displayed side by side. The frames have eyelets 2 and are stacked together with intermediate insulating frames on support pins 15 and surrounded by an anode 16 having a wire gauze portion 17. In an alternative arrangement (Figs. 6 and 7, not shown) the eyelets 2 are omitted, the frames and insulators being stacked in a U-shaped anode and secured therein by a cover with a gauze-covered aperture.
Patent GB-1453354-A (GB)
Title: Container for packaging liquids powders and the like
IPC: B65D21/02
Filed: 1974-01-11
Abstract: 1453354 Portable containers F BUSKE 11 Jan 1974 [13 Jan 1973 24 May 1973 29 Dec 1973] 1329/74 Heading B8D In a container in the form of a right prism having an inclined lateral face 62, opposed parallel basal faces 61 and end faces 64 and 65 arranged so that, when two such identical containers are placed together with their inclined faces abutting and with one container inverted, the containers form a rectangular parallelepiped, both the basal faces and inclined faces are provided with projecting and recessed areas 72, 74, 66, 67, 68 and 69 adapted to engage complementary areas on respective faces of an identical container to prevent relative movement between the containers. As shown, the lateral face 63 opposite the inclined face is provided with recessed and projecting areas 75, 76, 77 and 78 for mating engagement with complementary areas of the like lateral face of an identical container. The end faces are similarly provided with recessed and projecting areas to facilitate stacking, the small end face having an openable pouring outlet 71. The arrangement facilitates the stacking of such containers in stable bundles. The container may be blow-, extrusion- or injection-moulded in plastics, e.g. polyethylene or polypropylene or formed from metal sheet or plastics film.
Patent GB-144579-A (GB)
Title: Improvements in moving picture machines
IPC: G03B1/34
Filed: 1920-01-15
Abstract: 144,579. Hadley, E. J. Jan. 15, 1920. Kinematograph apparatus.-Intermittent feed mechanism comprises an elongated beater working in a bight of the film to lessen the " snatching " effect, and film centring mechanism comprises an adjustable eccentric guide-pulley and a lever end pressing on the film, both adjustable by motion of the lever. In the construction shown in Fig. 1, the beater 9 rotating about a centre 15 has a roller head 17 of appreciably larger periphery than its rounded tail 19, and rotates in the bight of the film formed between the roller 8 and the eccentrically mounted roller 10. The lever 41 pivoted about the shaft 11 and solid with the eccentric sheave 42 has a curved tail 12 which presses against the film. 'On operation of the bar 40, the eccentric and hence the roller 10 are adjusted relatively to the beater 9 and at the same time the tail 12 of the lever 41 is moved, both adjustments combining to centre the film.
Patent GB-771258-A (GB)
Title: Projection equipment
IPC: G03B21/00
Filed: 1955-01-17
Abstract: 771,258. Optical-projection apparatus. HOWELL, T. B., and ROGIN, M. Jan. 17, 1955 [Jan. 21, 1954], No. 1375/55. Class 97(1) Apparatus for projecting composite pictures comprises a hollow base containing two systems having lenses on the top wall of the base for illuminating transparencies, projection lenses mounted on a support above the base and, also mounted on the support, a pair of inwardly inclined mirrors above the projection lenses, a second pair of inclined mirrors to receive the light from the first pair and an additional inclined mirror to receive the light from the second pair. Fig. 2 shows a front elevation of one embodiment and Fig. 3 is a section thereof at 3-3. Each of the illuminating systems 13, 14 comprises a lamp 16 with reflector 21, condenser 23 and inclined mirror 24 by which a beam is reflected upwards through an iris diaphragm 27 and' a further lens system 38 above which is a glass panel 39. The iris diaphragms are operated by handles 28. Transparencies may be secured on the panels 39 by spring urged clips 41 pivoted at 43. Objectives 48 in focusing mounts are carried above the panels 39. An inclined mirror 61 above each objective is adjustable by a screw 78 about a horizontal pivot 70 on a base adjustable about a vertical axis by means not shown. Each mirror carries a lightshield 83 and co-operates with one of the fixed inclined mirrors 56 from which the projection beams are reflected upwardly on to a mirror 84 which is pivotally mounted and clamped by screws 88. The apparatus may contain a projection screen or the images may be projected on to an external screen. Alternatively a further lens may be provided beyond the mirror 84, by which the images are formed directly on a television pick-up tube. The brightness of the projection lamps may be varied by adjustable transformers 30, 31<SP>1</SP> operated by knobs 32, 33 which may be moved independently or may be coupled to provide inverse variation of the image brightnesses. A guide may be provided in which a film carrying titles for projection is moved by a motor at a speed adjustable by a rheostat 107. There may also be provided, for mounting over the panels 39, a slide in which masks are movable to cover one transparency and uncover the other to produce a wipe effect.
Patent GB-1369415-A (GB)
Title: Method of producing closure liners from resin powders
IPC: B29C41/00
Filed: 1973-01-10
Abstract: 1369415 Moulding closure liners ALUMINIUM CO OF AMERICA 10 Jan 1973 [21 Jan 1972] 1408/73 Heading B5A Closure liners are produced by adding a fusible resin powder to an inverted closure, shaping the powder therein and heating the powder to fuse it so that it retains its form and adheres to the closure shell without further shaping. The resin may be thermoplastic or thermosetting and may be an elastomeric polymer, e.g. polyvinyl chloride, polyethylene or polypropylene containing one or more plasticizers, stabilizers, lubricants, pigments, drying agents or fillers. It may also contain a foaming agent for density control. The shaping may be effected by simple levelling, cold compaction or by centrifuging so as to obtain an annular liner or a circular liner with greater thickness at the circumference.
Patent GB-137867-A (GB)
Title: Improvements in or relating to reversing gear
IPC: F16H3/14
Filed: 1920-01-16
Abstract: 137,867. Renault, L. Jan. 17, 1919, [Convention date]. Driving machines. - Reversing-gearing forlathes and other machine tools comprises a bevelwheel 7 constantly in mesh with skew pinions 3, 4 loose upon a driving-shaft 1. A double clutch 5 sliding on a feather on the shaft 1 is adapted to engage these pinions alternatively so as to drive the wheel 7 in one or the other direction. A different return speed is produced if the teeth of the wheel 7 are skewed, so that the pinions 3, 4 have different numbers of teeth. When the clutch 5 engages the pinion 3, the slide moves to the right until a lug 15<1> strikes a fixed stop 16. A rack 14 then turns an eccentrically-mounted pinion 13 so as to throw the clutch 5 into engagement with the pinion 4. This automatic reversal repeats. A controlling handle 12 is within reach of the operator.
Patent GB-285226-A (GB)
Title: Improvements in and relating to storage battery cells
IPC: H01M50/457
Filed: 1927-01-18
Abstract: 285,226. D. P. Battery Co., Ltd., Waddell, J., and Drake, B. M. Jan. 18, 1927. Separators.-Storage battery plates are separated by sheets of glass wool felt a which are folded round the plates so as to cover both sides, the folds x, y of adjacent sheets being at opposite ends. The glass wool felt consists of a number of layers of glass filaments cemented together with gelatine or sodium silicate as described in Specification 154,083. Additional separators e of porous wood or ebonite or perforated celluloid or ebonite are placed between the glass wool sheets. According to the Provisional Specification the plates may be separated by sheets of glass wool felt which are not folded round the plates.
Patent GB-286419-A (GB)
Title: Improvements in combined traction engines and cranes
IPC: B66C23/36
Filed: 1927-01-19
Abstract: 286,419. Box, N. E. Jan. 19, 1927. Combination apparatus.-In a traction engine with crane jib A mounted at the front, the hoisting drum F is driven from the slow-speed gear wheel h sliding on the engine shaft. The hoistiug rope E passes from the jib head through a guide e<1> to the drum F at one side of the tractor. The drum F is formed integrally with a brake and wheel L for holding light loads, and a toothed wheel M for holding heavy loads, and a spur-driving wheel F<1> is secured to or formed integral with the drum. The slow-speed gear wheel h of the tractor change-speed gear may be moved along its shaft to engage the wheel F by a hand-lever K. This lever is connected with lost motion to a hand-lever M<1> so that when the hoisting gear is disengaged, the lever M<1> can be thrown over to bring pins m<1> into engagement with the teeth of the holding wheel M. The lever K is connected with a similar lever for operating the gear from the opposite side of the engine. The brake L is operated from a hand wheel l<3>. The jib is detachably mounted at a on the forecarriage B, and held by stay-ropes C connected to adjustable links D<1> provided with series of holes d<1> for the securing pin d.
Patent GB-110267-A (GB)
Title: Improvements connected with the Stop Motion of Looms for Weaving.
Inventor: HAIGH HENRY
IPC: D03D51/00
Filed: 1917-02-01
Abstract: 110,267. Haigh, H. Feb. 1, 1917 Brake mechanism. - When the belt guide h is moved to shift the driving-belt e from the fast pulley d to the loose pulley d<1>, the guide slips from beneath a cam or wedge shaped projection g on an extension f of a rubber-faced segmental plate or brake block c pivoted to a stand a, and allows the block, under the influence of a spring- controlled rod k, to act on the fast pulley to stop the loom. When the loom is started, the beltguide raises the projection g to release the brake.
Patent GB-727241-A (GB)
Title: Improvements in or relating to fungicidal compositions
Inventor: WALKER GEORGE HENRY FRANCIS
IPC: A01N59/20
Filed: 1952-01-21
Abstract: Fungicidal compositions, capable of being readily dispersed in water, are prepared by incorporating with commercial cuprous oxide at least 5 per cent. of a water-soluble dispersing agent consisting of a salt of the mixture of lignin sulphonic acids derived from cellulose waste liquor, and up to 50 per cent. of a chloride or sulphate of an alkali metal or ammonium, or of a mixture of such salts, and bringing the resultant mixture into such a state of sub-division that its average particle size is not greater than 30 m .  The ingredients may be mixed dry or in the presence of water.  Sodium chloride is the preferred salt, and 5 to 20 per cent. of dispersing agent may be used.  Optional ingredients are (a) cationic wetting agents such as cetyl trimethylammonium bromide and cetyl pyridinium bromide in a proportion of 1/4 to 1 per cent (b) adhesives, e.g. bentonite (c) stabilisers, e.g. fullers earth and china clay and (d) insecticides. Specification 489,222 is referred to.
Patent GB-474065-A (GB)
Title: Improvements in or relating to surfaces adapted to be displaced in a fluid medium
IPC: B64C3/38
Filed: 1936-01-17
Abstract: 474,065. Deformable aerofoils and hydrofoils. FAUVEL, C., and COLTEL, H. Jan. 17, 1936, No. 1640. Void. Convention date, Jan. 17, 1935. [Classes 4 and 113 (ii)] The Specification is concerned with aerofoils and hydrofoils which are capable of being deformed in correspondence with changes in angle of attack in such manner that the centre of pressure remains constant. The camber of the surfaces may be made variable by an elastic construction, by the provision of leading and/or trailing edge flaps, by the provision of a number of such flaps, Fig. 3, or by split flaps for instance as shown in Fig. 18. The flaps may be controlled through a relay by devices measuring the angle of incidence of the wings or the speed of the craft. Other controlling instruments stated to be applicable are gyroscopes, accelerometers, altimeters, statoscopes, engine speed indicators, or generally any automatic piloting device. Alternatively, the movable surfaces may be coupled to the elevator controls and themselves in some circumstances act as control surfaces, for instance, trailing edge flaps may be differentially operable for lateral control. In one such arrangement, Fig. 5, a wing A has three flaps B<10>, B", B<12>, and B<20>, B<21>, B<22> on either side of the plane of symmetry which are differentially adjustable to different degrees. External aerofoil ailerons such as 3, Fig. 6, may be pivoted at the centre of pressure or be provided with flaps adjustable to maintain a stationary centre of pressure at any adjusted angle. Fig. 8 shows an arrangement particularly for tailless aircraft in which the chord e of flaps B, B<10>, B<20> is at any point a fixed fraction of the chord D of the wing at that point. The plan form of the wing is such that the locus of points disposed at a distance d from the leading edge which is a constant fraction of the chord D at that point, for instance, between 25 and 30 per cent, is a straight line passing through the centre of gravity of the aircraft. In a tandem wing aircraft, Fig. 10, a forward wing A is pivotally mounted and has a controllable flap B or two slotted wings A, Fig. 21, are both pivotally mounted. Adjustable surfaces controlled in the manner set forth above may be provided on control surfaces,' gyroplane blades, or hydrovanes.
Patent GB-1025366-A (GB)
Title: Removal of scale deposits from the inside of evaporator tubes and the like
IPC: C23G5/00
Filed: 1963-01-14
Abstract: Scale is removed from the inside of evaporator tubes by introducing into the tubes a scale-removing chemical suspended in steam or other gas.  The process is applied to the tubes of evaporators of low liquid hold-up i.e. climbing-film evaporators and spray evaporators. The scale-removing chemical may be a solution of a mineral acid such as HCl, an organic acid such as citric acid, a chelating agent such as ethylene diamine tetra-acetic acid, or a sequestering agent such as tri-poly-phosphate.  In examples, an evaporator for sea water which forms a scale of Mg(OH)2 is treated by adding HCl to the feed at the rate of 25 DEG C. of 12 N.HCl per 2 1/2 gals sea water, which is carried through the tubes in steam.  A short period of steam only treatment assists removal of the scale.
Patent GB-192086-A (GB)
Title: Improvements in coke ovens
IPC: C10B5/10
Filed: 1923-01-18
Abstract: 192,086. CoppÚe & Co., E. Jan. 21, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Coke ovens.-In a coke oven in which the regenerators are subdivided into units corresponding with the individual flues of the heating-wall, these flues are connected in pairs so that upcast and downcast flues alternate along the length of the wall, and the regenerators are arranged in rows of similarly-functioning units, adjacent oppositelyfunctioning rows being separated by a partition vertically beneath the heating-wall. As shown in the Figure which is an horizontal section through the regenerators beneath the ovens, for each heating-wall the units a operating in the same phase, for example on air, are arranged on one side of the wall c, which supports the heating-wall above, while the complementary units b on waste gas are on the opposite side of the wall.
Patent GB-834919-A (GB)
Title: Improvements relating to the oxidation of methyl-pyridines
Inventor: ISBENJIAN HRANT
Filed: 1957-01-16
Abstract: Methyl pyridines, which term includes di-and polymethyl pyridines and methyl pyridines having one or more rings fused to the pyridine ring, are converted into the corresponding pyridine carboxylic acids by dissolving or suspending them in water or aqueous acid, heating the solution or suspension to 100-120 DEG  C., passing molecular halogen therein in the presence of actinic radiation, and distilling off an azeotrope of water and hydrogen halide.  Water may be added to the reaction mass, preferably at substantially the same rate as it is distilled off.  The azeotropic distillation may be carried out continuously or intermittently; in the latter case the solution may be halogenated, then water added, and the azeotrope distilled off, this cycle being repeated; the temperature of halogenation may be different from that of the distillation.
Patent GB-426827-A (GB)
Title: Improvements in or relating to imitation fuel
IPC: A63J5/02
Filed: 1934-01-17
Abstract: 426,827. Imitation fuel. COLLINS, G. H., and COLLINS, H. F., Premier Works, Keeley Street, Birmingham. Jan. 17, 1934, No. 1703. [Class 126] Imitation fuel is made by coating or impregnating cotton voile, calico or other fabric of a non-metallic nature with a fireproofing or stiffening medium, e.g. an aqueous suspension of magnesium borate, pressing or folding the fabric to the required shape, drying it, and applying one or more coatings of a solution of cellulosic substance, e.g. cellulose acetate. Sodium biborate and magnesium sulphate are mixed with water in given proportions to form the suspension of magnesium borate. The fabric when impregnated may be folded on a former, or is placed within a hollow liner which fits on a heated die, and a second die which fits the interior of the liner is pressed against the upper surface of the fabric. The liner may be formed by the electrodeposition of copper or by beating sheet metal. The fuel may be made in one piece or a number of small pieces. When the cellulose has set, the material is painted or coloured black on projecting portions, and coated with grey cellulose or other paint at the edges. Alternatively, the whole surface may be coated with grey cellulose, and black paint applied afterwards where required Painting may be done between two coats of cellulose. Specification 410,123 is referred to.