baber/WOPTO huggingface dataset:
Patent GB-464852-A (GB)
Title: An improved method of sensitizing photographic silver halide emulsions
IPC: G03C1/14
Filed: 1935-07-17
Abstract: Cyanine dyes derived from bithiazoles and biselenazoles are prepared by condensing quaternary ammonium salts in known manner to produce cyanine, isocyanine, pseudocyanine or symmetrical or unsymmetrical carbocyanine dyes.  Condensations described in examples are (a) 2.6-dimethylbenzdithiazole methiodide is condensed with dimethyl formamidine in acetic anhydride, and with 2-iodoquinoline in alcoholic potash; (b) 2.7-dimethylbenzdithiazole methiodide is condensed with orthoformic ester in pyridine, and with 2-iodoquinoline in alcoholic potash.  Reference is also made to the production by known means of pentamethine and heptamethine dyes.
Patent GB-148516-A (GB)
Title: Steering gear for aeroplanes
IPC: B64C13/00
Filed: 1920-07-10
Abstract: 148,516. Ago Flugzeugwerke Ges. Jan. 4, 1915, [Convention date]. Steering and balancing.-In means for operating the wing-warping and elevator controls from a single control lever 8, the warping-cables are connected to a lever 2 on a shaft 1, which is forked at 3 and mounted on a cross-shaped member 4, 5 mounted between lugs on the lever 8, and the elevator cables are attached to levers 11 on a shaft 10 which is cranked as shown, the cranked portion being connected to an extension 9 of the lever 8. Reference has been directed by the Comptroller to Specifications 2588/08 and 28931/10.
Patent GB-800818-A (GB)
Title: Apparatus for indicating stages in the heating cycle of a batch type reheating furnace, kiln, oven or the like
IPC: G01K1/02
Filed: 1955-07-15
Abstract: 800,818. Indicating-apparatus. CONSETT IRON CO., Ltd., ANDERSON, A. L., and MAXWELL, R. Oct. 4, 1956 [July 15, 1955], No. 20500/55. Drawings to Specification. Class 51 (2). In a furnace supplied with fluid fuel and having the fuel or air supply controlled in dependence on the furnace temperature, the rate at which fuel or air is supplied to the furnace is measured and a signal given after a control means rendered operative by a predetermined fuel or air supply rate and inoperative when that rate is exceeded has been in operation for a predetermined time. In a gas-fired batch type metal reheating furnace with automatic control of the fuel supply, the pointer of a fuel flow indicator carries a metal plate. Two coils are adjustably mounted on the flow indicator dial so that when the metal in the furnace is approaching thermal equilibrium and the fuel flow drops, the plate is brought between the coils, to increase the anode current of a valve and initiate the action of a train of relays and timing devices such that after a preset time after the fuel flow drops to the predetermined level an amber light is shown. After a further period a green light is shown and the amber light extinguished. The arrangement is such that this further period does not include periods in which the fuel flow exceeds the predetermined value. The green light is a signal that the metal in the furnace is ready for further treatment. The circuit includes an arrangement to ensure that the green light is not extinguished and the device reset until full fuel. flow has been maintained for a set length of time, i.e. until the furnace has been recharged. In a modification, signal lamps for a number of furnaces are placed in a planning office. The flow indicator and coils are replaced by switches operated by the fuel valve, and uniselectors at the furnace and in the office are provided with a reset arrangement to avoid false signals. Switches in the office enable indicators for the furnace operators to be controlled by the office, and a timer for each furnace indicates the probable time to elapse before the charge is ready.
Patent GB-333357-A (GB)
Title: Improvements in or relating to means for stopping gas mains and the like
IPC: F16K7/10
Filed: 1929-07-04
Abstract: 333,357. Weston, Shipton, & Weston, Ltd., and Shipley, A. H. July 4, 1929. Stopping pipes.-A device for temporarily stopping gas mains 13 comprises a rubber bag 5 which is normally located. in its deflated condition within a tubular housing 1 disposed upon the main and is adapted to be inserted into the main through an aperture 33 therein and then inflated. The bag is carried by a hollow plunger 4 which is slidable in the housing and is provided at its outer end with a handle 9 and air inlet 10, while the open end of the housing is provided with a flange 17 for attachment of the device to a fitting 12 carried by the main, leakage of gas being prevented by a packing ring 15 carried by the housing and engaging the bore of the said fitting. The fitting is also provided with a shutter 21 located in a compartment 22 carried thereby and adapted to close the aperture 33 and prevent leakage of gas when the stopping device is removed. In a modification, Fig. 4, the bag is replaced by a collapsable diaphragm comprising flexible frame members 35, 36 and an attached piece 37 of rubberized fabric. The frame, members are hinged at 38 to a plunger movable within the housing 1<a> and also at 39 to a part 40 of a telescopic connection comprising a tube 41 fixed in the plunger and an inner rod or tube 42 controlled by a spring in the tube 41.
Patent GB-409939-A (GB)
Title: Improvements in or relating to wheel toys
IPC: A63H33/06
Filed: 1933-07-21
Abstract: 409,939. Toy railways. CULLIMORE, W. R., 97, Chatham Street, Liverpool. July 21, 1933, No. 20548. [Class 132 (iii).] A structure providing a rail or runway for a wheel toy comprises a series of collapsable or demountable flat or curved sheets of cardboard, sheet metal or wood provided on one or both sides with pictures, their upper edges forming a flat, declining or undulating runway of loop, zig-zag, S or other formation. In the example shown in Fig. 1, a number of cardboard, sheet metal or wood sheets or sections a connected together at their vertical edges b by adhesive strips of paper or cloth c or by metal hinges to facilitate folding. The upper edges d can have a gradually declination for a non-mechanical toy or can be undulating and can end in an upwardly curved portion, the junctions of the sections being at lowermost points of the rail. Where mechanically or otherwise propelled toys are used, the section may be fastened by metal hooks f and eyes f<1>, Fig. 4, and form an endless track. A rim or edging g of sheet metal, wood &c. may be fixed along the upper edge d of each section, as shown in Figs. 5, 6, 7 and 8. To provide more readily negotiable bends, two or more narrow strips j, Fig. 9, of cardboard or wood may be secured by adhesive to the strips of paper or cloth c between the sections a. Supports k, Fig. 10, may be provided to hold the sections upright. The structure may be composed of a plurality of curved sections a, Fig. 11, to provide a track of S-formation and of increased stability. The curved sections a may be made of sheet metal hinged together at l and may form a level track. Some of the sections a may be cut out to show, for example, a bridge, Fig. 13. Flat and curved sections may be combined. The sections may be transversely scored or creased at spaced intervals to form the hinged sections a. The sections, Fig. 14, may be connected at their vertical edges b by hooks m engaging lugs m<1>. The sections a may be of laminated construction, e.g. three-ply cardboard a<1>, Fig. 15, or wood or metal strips a<2> inserted between two walls a<3>, Fig. 16. The toys employed may be of gyroscopic type, but preferably embody counterbalancing weights o, Fig. 17, for stabilizing the toy. The weights need not be utilised with the rail shown in Fig. 8, and the portions h<1> of this track may be banked at bends to prevent the toy leaving the rail. The portions h of the rails shown in Figs. 7 and 8 are cut away or champhered at bends to permit of folding.
Patent GB-939086-A (GB)
Title: Improvements relating to screw connections
Inventor: STOCKFISCH HEINZ
IPC: F16B37/12
Filed: 1961-06-07
Abstract: 939,086. Self-tapping screws. DAIMLERBENZ A.G. June 7, 1961, No. 20575/61. Class 83 (3). [Also in Group XXXV] In a connection between a light-metal housing part 3<SP>1</SP>, having a screw-threaded bore, of an internal combustion engine and a steel cylinder-head bolt 4<SP>1</SP>, wherein a cylindrical bronze bush 6<SP>1</SP> is disposed in the bore between the part 3<SP>1</SP> and bolt 4<SP>1</SP> and has a screwthread on at least its outer surface, for screwing into the bore, the entry end of the bush has a device 7 to cut a screw-thread in the part 3<SP>1</SP>, with cutting- edges which may be hardened.
Patent GB-607130-A (GB)
Title: Process for obtaining acetals having a high degree of purity
Filed: 1945-08-10
Abstract: Acetals, prepared in a specified manner (see Group IV (b)) are used as tertiary solvents or blenders in fuels for internal combustion engines such as mixtures of petroleum and aqueous alcohol.  Dimethyl and diethyl acetals are specified.ALSO:Acetals are prepared by reacting acetaldehyde with an alcohol, for example, methyl or ethyl alcohol, in the presence as catalyst of a neutral ammonium or amine salt, and then separating the acetal formed from the acetaldehyde and alcohol by a series of extractions with a liquid, for example, water, which is saturated by acetal when it contains 10 per cent by volume of the latter but which is a solvent for the alcohol and acetaldehyde, the duration of each extraction and the amount of solvent used being sufficiently short and small respectively as to prevent any substantial dissolution of acetal in the solvent.  The extraction may be effected by adding to the reaction mixture a small volume of water, say 1/10 of the volume of the mixture being treated, stirring for a few minutes, settling and decanting off the upper acetal layer and subjecting the latter to further extractions until an acetal of the desired purity is obtained. The product may be used as a fuel or as a blender for fuels such as petroleum and aqueous alcohol mixtures (see Group III) and as a solvent and plasticiser. In an example, acetaldehyde is reacted with ethyl alcohol in the presence of ammonium chloride with stirring at room temperature and the resulting acetal purified by multiple extractions with water. Dimethyl acetal may be prepared in like manner.  Specifications 597,128 and 607,129 are referred to.
Patent GB-401818-A (GB)
Title: Improvements in road sweeping and the like machines
IPC: A46B13/00
Filed: 1932-07-23
Abstract: 401,818. Brushes. GUY MOTORS, Ltd., Fallings Park, Wolverhampton, and EDWARDS, C. K., 121, Church Lane, Handsworth Wood, Birmingham. July 23, 1932, No. 20760. [Class 19.] The rotary - brush shaft of a road-sweeping or like machine is rotatably mounted in a fixed bearing at the driving end and is adapted at the other end to be readily disconnected from its support. In the form shown, the brush shaft comprises three articulated sections b and is supported at its ends by arms c of the vehicle frame. At the driving end, the brush shaft is mounted in a fixed bearing d. At the opposite end, the shaft is carried by an axiallymovable spindle e having a sleeve h which is rotatably mounted in ball bearings in a housing f carried by the arm c. The spindle normally projects into the hollow end of the shaft to which it is secured by a bolt g. By removing this bolt and withdrawing the spindle, the shaft can be moved to enable the brushes a to be removed. The sections are interconnected by universal couplings each comprising two pairs of plates n which fit the bores a<1> of the brushes, and which are coupled together by a star coupling m. The bore of each brush is non- circular in section, and rotation of the brushes is effected by driving blocks l of similar section, these blocks being secured to the shaft. In a modification, the shaft comprises one section only and is mounted on the frame, at the driving end, by means of a universal joint.
Patent GB-257294-A (GB)
Title: Improvements in or relating to radio receivers
IPC: H04L27/06
Filed: 1926-08-23
Abstract: 257,294. Telefunken Ges. fur Drahtlose Telegraphie. Aug. 24, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Heterodyne receiving systems; thermionic heterodyne receivers.-In a wireless receiver of the heterodyne type, the local oscillations are modulated at an audible frequency. The modulation of the local oscillator U may be effected by an alternating plate supply current or by other means, and the modulated oscillations are combined in the circuit B with the incoming waves received on the aerial A. After rectification by the detector R. the beat current appears in the tuned circuit I, and is transferred to the second detector D giving an audible note in the phones T. The beat frequency may be greater or less than the wave frequency. The note heard does not vary with fluctuations of the transmitted frequency.
Patent GB-221630-A (GB)
Title: Improvements in and relating to fitments for tobacco pipes and the like
IPC: A24F5/08
Filed: 1923-08-16
Abstract: 221,630. Macdonald, A. C. Aug. 16, 1923. Tobacco pipes.-A plug for the bowl of a pipe is bent from one piece of sheet metal as shown, the perforated disc a being nicked at d so that, when the arms b are bent up, its edge is not prevented from touching the bore of the bowl. More than two arms b may be provided. The ends e of the arms are bent over the edge of the bowl and can be used to rotate the plug to clean the sides of the bowl.
Patent GB-1241254-A (GB)
Title: Improvements in and relating to the formation of glass-ceramic articles
IPC: C03B32/02
Filed: 1969-04-24
Abstract: 1,241,254. Glass-ceramic articles. A. T. RANSON (Owens-Illinois Inc.). 24 April, 1969, No. 20886/69. Heading C1M. [Also in Division G2] A shaped glass-ceramic article (17) having at least one cavity (19) therein communicating with the surface via an opening (18) whose crosssectional area is less than that of the cavity, is formed by solidifying a thermally-crystallizable glass 21 (Fig. 1, which shows a single cavity) around a cavity-forming part 22 in a mould 20, the cavity-forming part 22 being formed of a refractory material which will yield to the stresses set up during the glass crystallization step, and crystallizing the glass to form a glassceramic, the part 22 being subsequently removed. During the crystallization the moulded glass 21 increases in density and therefore shrinks, and consequently the cavity shrinks. Thus the glass-ceramic articles may crack unless the material 22 will yield under stress. A suitable part 22 is made by mixing a composition comprising 10-55 wt. per cent calcium sulphate and 35-90 wt. per cent silica with water (e.g. 15-50 parts by weight water to 100 parts composition), casting, and firing to 1200-2500‹ F. The silica is preferably 200- 400 U.S. mesh. Minor amounts of B 2 O 3 , Al 2 O 3 , K 2 SO 4  and NaCl may be included. Calcium sulphate hemihydrate is preferably used. The mixture may be formed around a rod 23, e.g. of metal, ceramic or graphite, which may be threaded, to aid removal of the part 22 from the formed glass-ceramic article. Preferably the part 22 is washed with water, and thus disintegrates and is removed from the cavity formed. The mould 20 may be of metal or graphite with a coating of fibrous silica-alumina material. The glass-ceramic may be as disclosed in Specifications 1,176,522, 1,124,001 or 1,124,002.
Patent GB-335649-A (GB)
Title: Improvements in weighing machines
IPC: G01G23/18
Filed: 1929-07-08
Abstract: 335,649. Brown, S. C. July 8, 1929. Printed records, apparatus for giving. - A recording weighing machine is provided with a table 2, Figs. 1 and 2, adjustable relatively to the recording type and capable of supporting documents 1, such as a manifold delivery note book on which the records may be permanently printed. The book is normally held clear of the type by a frame 18 slidably mounted on the support 3 and depressed by a light spring 19 bearing against a fixed stop 4. To permit the insertion of the book, the table is lowered relatively to the frame against the action of a spring 26, one end of which is attached to a lever 24 to force a catch 24<a> into a recess 25. When the book is in place, turning the lever 24 causes the spring 26 to raise the table until the book is in contact with the frame 18<a>. Stops 28 are provided to locate the book correctly in different positions on the table. To obtain a weight record a handle 20 is raised thus releasing a latch 20<a> and allowing a spring 23 to raise the table with its frame against the type wheels 7, 8, 9, the table then being returned by the light spring 19. Records may be simultaneously printed on a record strip as described in Specification 2690/12.
Patent GB-630944-A (GB)
Title: Caterpillar chain drive
IPC: B62D55/08
Filed: 1947-08-01
Abstract: 630,944. Endless-chain conveyers. WEBB CO., J. B. Aug. 1, 1947, No. 20959. Convention date, June 10, 1946. [Class 78 (i)] [Also in Group XXIV] A driving arrangement for a conveyer chain D comprises a chain A having projections 10 for engaging the links 18 of chain D. The adjacent ends of the inner links 11 of the chain A have abutting surfaces 24, 25 in order to resist the out-of-centre resisting force acting on the projections 10. The chain A is thus made flexible in one direction only and an even distribution of the thrust on the guide 13 is obtained. Extensions 16a, 16b may also be provided from the shoulders of the projections 10 to overlie the adjacent ends of the links 11.
Patent GB-670048-A (GB)
Title: Device for recovering liquid carried in the gases evolved from electric storage batteries
IPC: H01M2/12
Filed: 1949-08-12
Abstract: 670,048. Batteries. BABCOCK & WILCOX CO. Aug. 12, 1949 [March 31, 1949], No. 21031/49. Class 53. [Also in Group XIII] A storage battery is provided with a device for condensing the electrolyte carried over in the gases avolved from the battery during charging and returning the condensed electrolyte to the battery. Figs. 2 and 3 show the device in part sectional elevation and plan. A chamber 18 fits into the vent opening 14 of the battery 10 and is provided with an internal compartment comprising side walls 24, 26, a perforated wall 28 and a base 22 formed with a flange 29 which abuts against the side wall of the chamber 18. A tube 36 leads from the base of the compartment and terminates below the level of the electrolyte in the battery. The side of the compartment opposite the side 28 is open. Gas from the battery passes through the open side into the compartment and out through an equalizing chamber 35 and an opening 40 which is connected to a fan for drawing the gases from the battery. An air inlet is provided in the top of the battery. Within the compartment are rows of airfoil separator elements 30 arranged at an angle to the fluid flow as shown in Fig. 3. Liquid separated from the gases collects on the elements 30 and runs down them into the space 34 from which it drains back into the battery through the tube 36. The elements 30 depend from a plate 48 above which is a cover 50 secured to the chamber 18. Specification 635,241, [Group XIII] is referred to.
Patent GB-1142564-A (GB)
Title: Opening device for a package and method of making same
IPC: B65D75/66
Filed: 1966-05-12
Abstract: 1,142,564. Plastics laminates. L. J. VILUTIS. 12 May, 1966 [12 May, 1965; 30 July, 1965], No. 21039/66. Heading B5N. [Also in Division B8] A laminated thermoplastic film for packaging comprises a layer of crystalline copolymer of vinylidene chloride and vinyl chloride and a layer of polyethylene.
Patent GB-239697-A (GB)
Title: Improvements in tractor and trailer road vehicles
IPC: B62D7/02
Filed: 1924-09-06
Abstract: 239,697. Eagle Engineering Co., Ltd., and Cox, C. H. Sept. 6, 1924. Couplings for road vehicles.-The longitudinal arms 7a of a cross-pin member are housed in bearings 6 carried by the trailer while the tramsverse arms 7b axe housed in bearings 8 carried by a turntable at the rear of the tractor. Springs 13 on the arms 7<a> absorb shocks from the road wheels.
Patent GB-1179019-A (GB)
Title: Polynicotinic Esters of Flavonoids
Inventor: LEROI EUGENE L
IPC: A61K31/485
Filed: 1967-05-23
Abstract: 1,179,019. Polynicotinic esters of flavonoids. SOC. D'ETUDES DE PRODUITS CHIMIQUE. 2 May, 1968 [23 May, 1967], No. 21078/67. Heading C2C. Novel polynicotinic esters of flavonoids having from 2 to 9 nicotinoyl groups are prepared by dissolving nicotinoyl chloride hydrochloride in pyridine or in a mixture of pyridine and chloroform, and adding the selected flavonoid, dissolved in pyridine, to the solution. Pharmaceutical compositions having an effect on the proportion of cholesterol in the blood without causing appreciable peripheral vasodilation (flush effect) containing the compounds defined above are administered orally in association with a suitable diluent or carrier.
Patent GB-152319-A (GB)
Title: Hearth smelting or annealing furnace
IPC: F27B3/00
Filed: 1920-07-12
Abstract: 152,319. Bansen, H., and Faconeisen- Walzwerk L. Mannstaedt et Cie Akt.- Ges. Dec. 2, 1918, [Convention date]. Reverberatory and open-hearth furnaces.-In a gas-fired furnace, combustion is effected in a transverse chamber having burner ports at both ends. In one construction, Figs. 2 and 3, in which the combustion chamber g is at one end of the furnace, gas and air are supplied through flues a, c respectively, and are admitted to the combustion chamber through ports b, e, and ignition chambers f. The two air-supply ports e are inclined at different angles so that the two flames will not meet directly. Additional gas may be admitted to the combustion chamber through ports in the wall k. In another construction, the combustion chamber is arranged at the middle of the length of the furnace, and the waste-gas outlets at the ends lead to a recuperator beneath, the gases from one outlet passing through the whole length of the recuperator flues, and from the other through half the length only. In another modification, Fig. 6, combustion chambers are provided at both ends of the furnace, and the waste-gas outlets l are at the middle of its length, either in the walls, as shown, or in the floor. A baffle x ensures equal division of the waste gases between the two paths of flow in the recuperator. When the combustion chambers are arranged at both ends or in the middle, the furnace may be divided into two independent hearths by a partition.
Patent GB-1471027-A (GB)
Title: Braced insulating element and method for its manufacture
IPC: E04B1/76
Filed: 1974-05-13
Abstract: 1471027 Laminates SINTEF 13 May 1974 [15 May 1973] 21091/74 Heading B5A A method of manufacturing a braced insulating element B includes the steps of providing a plurality of rectangular mats 1 formed of a soft, yielding insulating material, e.g. mineral wool, stacking the mats in layers one above the other with intermediate coatings of a liquid curable plastics material 2 to form a first body, cutting the first body perpendicular to the layers along uniformly spaced parallel lines 5 into slices of a thickness h corresponding to the desired thickness of the element. In a preferred embodiment a coating of the plastics material is applied to one or more of the uncoated surfaces of the first body prior to cutting. The slices formed by the method of the invention may be stacked in layers one above the other with intermediate coatings of the plastics material (Fig. 3) to form a second body which is then cut along second uniformly spaced parallel lines perpendicular to the layers to form slices corresponding to the thickness of the desired elements.