baber/WOPTO huggingface dataset:
Patent GB-412653-A (GB)
Title: Improvements in or relating to filtering apparatus
IPC: B01D37/04
Filed: 1933-01-18
Abstract: 412,653. Filters. PATERSON, W., Windsor House, Kingsway, London. Jan. 18, 1933, No. 1717. [Class 46.] In filtering apparatus in which the discharge valve is controlled by a differential head set up by passage of the discharge liquid through a Venturi meter or other orifice, the differential pressure is counterbalanced by a force, which may be automatically varied, to ensure a gradual start of the filter after it has been cleansed or shut down. As shown, the discharge valve c is operated by a piston in a cylinder d to the upper and lower parts of which operating liquid is admitted through a pilot valve x. The valve x is controlled by a diaphragm v subject to the differential pressures due to a Venturi element z and to a weight h on a steelyard b<1>, the latter tending to open the valve. To vary the effect of the weight it is arranged as a float in a vessel g to which water is admitted through a pipe p with a valve m controlled by a float l above the filter bed a. Water passes away from the vessel g through a leak away k<1> the height of which can be adjusted by means of a handle k<2>. Manual control of the supply of water to the vessel g may be provided for and a plug valve q may be lifted to empty the vessel. The weight h may be replaced by a vessel that can be filled and emptied. In a modification the valve c is moved by an electric motor the circuit of which contains a switch which takes the place of the pilot valve x. Specification 389,494 is referred to.
Patent GB-692998-A (GB)
Title: Gas discharge lamp for recording acoustic vibrations
IPC: H01J65/04
Filed: 1950-01-23
Abstract: 692,998. Optical recording apparatus. LEITHAUSER, G. Jan. 23, 1950 [Jan. 31, 1949; Jan. 31, 1949; Jan. 31, 1949], No. 1722/50. Drawings.to Specification. Class 40 (ii) [Also in Group XL(a)] In a system for recording by producing light modulated by sound variations and recording it on a film, a discharge tube is employed having a capillary middle portion forming the light emitting part, enlarged end portions filled with mercury vapour and one or more rare gases, and electrodes arranged on the outside surfaces of the said end portions, the said electrodes being fed with high frequency currents modulated by sound frequencies.
Patent GB-122279-A (GB)
Title: Improved Pouring Device for Fluid Containers principally Oil Tins.
Inventor: PARKER ALLAN HODGSON
IPC: B65D47/12
Filed: 1918-01-31
Abstract: 122,279. Parker, A. H. Jan. 31, 1918. Seals and sealing. - A sheet-metal can &c. has a spout 1 which has an extension adapted to receive a screwed plug 5. The pouring-outlet of the can is adapted to be sealed by a wire 12, which passes through a hole in a finger-piece 6 of the plug 5, then through a hole 13 in the spout 1, and finally through a loop 14 secured to the top of the can, the ends of the wire 12 being secured by a seal 15.
Patent GB-702196-A (GB)
Title: Improvements in or relating to the production of oxygenated organic compounds
IPC: C07C27/22
Filed: 1949-01-22
Abstract: Steps in the recovery of oxygenated organic compounds made from olefines, carbon monoxide, hydrogen and water or alcohols comprise treating the product from the reaction zone for the separation of all or part of the gaseous constituents, thereafter maintaining the remainder of the product, containing volatile cobalt compounds, at a pressure of 100-500 p.s.i. and at a temperature above 125 DEG C. in a catalyst recovery zone in the absence of added hydrogen, until a major proportion of the volatile cobalt compounds is decomposed to yield cobalt in a solid form.  Preferably the catalyst recovery zone is at 150-250 DEG C.  The process is particularly useful when lower olefines are being treated.  Separation may be effected by a reduction in pressure, e.g. from a reaction pressure of 3,000 p.s.i. to 150-500 p.s.i., the liquid products then being treated at the same pressure and at 175-225 DEG C. for 0.5-15 mins.  The process is of particular value when volatile cobalt catalysts, e.g. dicobalt octacarbonyl and/or cobalt tetracarbonyl hydride, are used and has particular application in the conversion of propylene to butyraldehydes.  The cobalt may be deposited on a porous support, generally in amounts of not greater than 25 per cent., and used for producing fresh catalyst.  Alumina and bauxite are particularly useful supports. Without a support the cobalt is recovered as a liquid suspension. Vessels may be used alternatively for catalyst recovery and catalyst production.  An illustration is provided of the production of n and iso-butyraldehyde from a propylenepropane mixture and in examples (1) cobalt is recovered on pumice from a butyraldehyde feed in xylene, (2) cobalt is recovered on silica gel from a butyraldehyde feed and the effect of varying conditions on the amount obtained illustrated in both cases, (3) similar results are given using a nonaldehyde feed and activated alumina, (4) shows the beneficial effect of high liquid feed rates on cobalt recovery from butyraldehyde feeds, activated alumina being used, (5) bauxite is used in recovery of both cobalt and iron from butyraldehyde feeds, (6), (7) and (8) shows the regeneration of cobalt catalyst from pumice, activated alumina and Indian bauxite respectively, and in (9) full reaction conditions are given for the production of n- and iso-butyraldehydes from propylene-propane mixture.  Specifications 702,192, 702,195, 702,197, 702,201, 702,203, 702,204, 702,222 and 702,242 are referred to.
Patent GB-1302682-A (GB)
IPC: G21C3/62
Filed: 1970-01-14
Abstract: 1302682 Nuclear fuel REACTOR CENTRUM NEDERLAND (STICHTING) 14 Jan 1970 [16 Jan 1969] 1848/70 Heading G6C [Also in Division C1] A fuel element for a nuclear reactor comprises or consists of solid particles of one or more metal oxides, or their hydrates, prepared by contacting an anion deficient aqueous solution of at least one hydrolysable salt of the metal(s), the hydroxide of which is sparingly soluble in water, with ammonia at an elevated temperature, separating off the particles thus formed, washing them and subjecting them to heat treatment. Carbon particles may be added to the aqueous solution for incorporation into the product particles. "Anion deficient salt solutions" are defined as those in which the ratio of anion concentration to metal ion concentration is lower than that of the normal salt, the term "anion" does not, however, include OH- in this context. The anion deficient salt solution may be mixed with a solution of an ammonia releasing agent whereby ammonia is released when the solution is at an elevated temperature and the mixed solution may be dispersed in a water immiscible liquid maintained at an elevated temperature. Specified metal salts are those of uranium, which may be mixed with those of thorium, zirconium, hafnium, yttrium, and rare earth metals, whilst examples describe the production of mixed urania/plutonia and of uranium oxides containing oxides of zirconium, lanthanum, or yttrium.
Patent GB-750533-A (GB)
Title: Corsets, girdles and the like
IPC: A41C1/00
Filed: 1954-01-22
Abstract: 750,533. Corsets &c. BINKOWSKI [nee KREUZER], A. Jan. 22, 1954, No. 2047/54. Class 141. The front of a corset or girdle a is stiffened by pairs of bars b, c . . . f, g, disposed one below another, each pair consisting of a shorter bar approximately perpendicular to a longer bar. The long and short bars alternate in the successive pairs. The bars are flattened at each end at h. Data regarding the spacing and overlap of the long and short bars are given in the Specification. The bars may incline downwardly or upwardly from their adjacent ends.
Patent GB-917187-A (GB)
Title: Improvements in or relating to a shaft coupling
IPC: F16D1/108
Filed: 1961-01-18
Abstract: 917,187. Shaft couplings. SCHUURINK, F. A. Jan. 18, 1961 [Jan. 22, 1960], No. 2089/61. Class 80 (2). A shaft coupling for washing - machines comprises a V-tongue- and-slot connection 3 urged together by a U-shaped leaf-spring 5 providing automatic adjustment for wear and flexibility to accommodate misalignment.
Patent GB-538648-A (GB)
Title: Improvements in constructional metal work
IPC: E04H17/14
Filed: 1940-02-02
Abstract: 538,648. Metal walls and roofs. AEROLEX, Ltd., and HARLEY, F. B. Feb. 2, 1940, No. 2107. [Class 20 (iv)] Metal panel section for walls, roofs &c. comprises overlapping reversed channel section strips 1, 2 independently secured to transverse members 3 substantially along their centres so that the strips are capable of expansion laterally from their centres. Two or more channel sections may be formed in each strip. The ends of adjacent transverse members may be joined by wooden fillets 10.
Patent GB-283745-A (GB)
Title: Improvements in drills for drilling stone, concrete, bricks or other like material
IPC: E21B10/44
Filed: 1927-01-25
Abstract: 283,745. Lazenby, T. Jan. 25,1927. Percussive drills.-A percussive drill for drilling stone &c. has a flat cutting end B terminating in a single point E on the axis of the drill and a helically twisted stem forming a helical groove D for removing the debris and a helical thread C which is backed off to present a cutting edge to the material being drilled.
Patent GB-171327-A (GB)
Title: Improvements in and relating to motor-cycle sidecars
IPC: B62K27/10
Filed: 1921-01-15
Abstract: 171,327. Snell, J. Jan. 15, 1921. Seats, disposition of.-A motor-cycle side-car not normally seating but capable of carrying more than one person, has a slung seat a carried by poles b resting on brackets d secured to the sides of the side-car in front of the main seat. When not required, the seat a is rolled up and stored.
Patent GB-878078-A (GB)
Title: A gear changing device with preselector
IPC: B62M25/00
Filed: 1959-01-21
Abstract: 878,078. Change-speed control. ZAVODY 9. KVETNA, NARODNI PODNIK. Jan. 21, 1959 [May 26, 1958], No. 2257/59. Class 80 (2). In a preselective control mechanism for change-speed gearing for single track and other small motor vehicles, a profile member or members 1 which is or are mounted on a shaft 4 arranged transversely of shift fork guide rail or rails 17 and each of which comprises cam slots formed in the wall of a complete or sectoral cylinder or multi-sided prism, is or are rotated for ratio preselection, and axially displaced for gear establishment, the cam slots acting directly on pegs 13 of forks 15. One profile member 1 may actuate several forks as shown, or several members 1 may each actuate one fork. The preselecting and/or gear establishing movement of the member(s) 1 may be effected electromagnetically. In Figs. 1, 2 a single pentagonal member 1, the sides of which have formed therein pairs of cam slots giving N, 1, 2, 3, 4, is splined on a shaft 4 which is rotated by a preselecting means (not shown) through a cable or chain 9 and a pulley 8 fast on the shaft 4 and positioned by a detent 22. The member 1 is axially displaced for gear establishment, against a spring 7, by a lever 11 actuated, against a spring 24, by a pedal executive lever 12. Rotation of the member 1 during the establishing action is prevented by engagement of the lever 11 in one of slots 23 in the member 1. The forks 15 on the single guide rail 17 each have three positions which are maintained after the establishing action, when the member 1 and the lever 11 are respectively returned by springs 7, 24, by detents 21 engaging rail notches 18, 19, 20. The cam slots are so shaped that one of the forks is first shifted into neutral in advance of a gear establishing shift of the other fork. In Fig. 4 (not shown) two spaced members 1 together splined on the shaft 11 have single cam slots formed in each of their five sides to coact with pegs of two forks 15 on individual rails The member or members 1 may be fast on an axially slidable shaft 4 splined in an axially fixed disc 8 (Fig. 6, not shown) the rotation of the member or members 1 during the establishing action being prevented by a key on the shaft 4 which, during the said action, engages one of five splines in a fixed bearing. A cam such as an eccentric disc may replace the lever 11. The member(s) 1 may comprise cam slots for several gear speeds, including reverse.
Patent GB-1067152-A (GB)
Title: New reactive metallised azo dyes
Inventor: ANDREW HERBERT FRANCIS
IPC: C09B62/032
Filed: 1963-01-18
Abstract: The invention comprises reactive water-soluble complexes of metals of atomic number from 24 to 29 inclusive and azo dyes of formula <FORM:1067152/C4-C5/1> wherein M is a 1-hydroxy-3-sulpho-naphthalene radical linked in the 2-position to -N=N-and in 6- or 7- position to -N(R)- either directly or via an anilino group, n is 1 or 2, A is o-phenylene or -napthylene, R, R1 and R2 are independently H or C1-C4 alkyl, T1 is a triazin or pyrimidine nucleus containing a labile substituent, T2 is a triazine or pyrimidine nucleus containing at least one labile substituent and B is a monoazo dye residue of formula -D-N = N-E-wherein D is a phenylene or naphthylene residue and E is the nucleus of a p-coupling primary or secondary aniline or naphthylamine or is a 5-pyrazolone radical linked in the 4-position to -N = N- and carrying in the 1-position a mono- or di-cyclic radical of the benzene series (including stilbene) which is linked to amino. Labile substituents are defined as atoms or groups bound by covalent bonds to a C atom in the 2-, 4- or 6-position of the triazine or pyrimidine nucleus, which readily dissociate under the influence of heat or alkalis to form an ion or unchanged molecule. The dyes are prepared by condensing a metal complex of an aminoazo dye of formula <FORM:1067152/C4-C5/2> with a polyhalo-triazine or -pyrimidine and if desired replacing one or more halogen atoms in the condensate by other groups which may or may not be labile.  Specified further reactants include ammonia, amines, mercaptans, alcohols, phenols, alkali metal sulphites or thiocyanates, dithiocarbamates and thio-amides.  The dyes may be used to colour natural and synthetic polyamides, cellulose materials and in particular leather in brown shades by the usual reactive dye processes.
Patent GB-1374312-A (GB)
Title: Method of developing an electrostatic latent image
IPC: G03G9/08
Filed: 1972-01-18
Abstract: 1374312 Electrostatic printing RANK XEROX Ltd 18 Jan 1972 2289/72 Heading G2H To prevent edge effects, which arise in reversal development when the periphery of an area having a uniform charge density is developed with excessive density, an imaged photo-conductive body is given a first, normal, development with a neutralcoloured toner which is permitted to develope. edge effects, then optionally cleaned by, e.g. washing in kerosene, and given an electrically biased reversal development with another toner. The first toner may be white or colourless, and both toners may be suspensions in liquids. Only the second toner is transferred to a copy sheet, if transfer is employed. The first toner may contain white zinc oxide powder, nitrocellulose, resin varnish and burylacetate, with kerosene and decalin, and be negatively charged, while the second toner may be positively charged and contain carbon black, alkyd resin, linseed oil and decalin. Alternatively the  first developer may contain ethyl cellulose, tetrachloroethane and resin varnish, and be a positively charged dispersion in kerosene, used with a following spray of second developer.
Patent GB-138605-A (GB)
Title: Improvements in or relating to terrazzo floors and treads
IPC: E04F11/16
Filed: 1920-01-24
Abstract: 138,605. Norton Co., (Assignees of Jeppson, G. N.). Feb. 1, 1919, [Convention date]. Drawings to Specification. Stone, artificial and imitation.-A non-slipping and wear-resisting tread or tile for footways and floors is formed by embedding in a plastic cementitious base or foundation, chips composed of fused alumina or silicon carbide granules bonded by a vitrified ceramic material. The granules are of a hardness of 9 or more. The ceramic material may consist of 44 parts by weight of slip clay, 44 parts of feldspar, and 12 parts of ball clay; these materials are crushed and mixed dry with the crystalline granules, the mixture is damped, pressed into lumps, fired at about 1300‹ C. for 50 to 100 hours, then cooled slowly and crushed to chips varying in size from one inch to one-eighth of an inch. The face of the tread or tile may be coated with wax to fill the pores.
Patent GB-1362083-A (GB)
Title: Transmission line coupling circuits
IPC: H03K19/0175
Filed: 1972-01-18
Abstract: 1362083 Coupling networks WESTERN ELECTRIC CO Inc 18 Jan 1972 [22 Jan 1971] 2304/72 Heading H3U Power to a functional load R t , or branch transmission line, is tapped out via transformer secondary 13, from a transmission line 10a 1 , 10b 1 , 10a 2 , 10b 2 , power passing along the line via intermediate tappings on the transformer primary 12. Disclosed mathematical analysis shows that, following choice of the effective load resistance R t , number of turns n 3  of secondary 13, and the desired proportion of the transformer input power to be tapped out, the requirement that the line be correctly matched at both input and output, at a value R l  = Z 0 , determines the number of turns, n 2  of winding segment 12c, and that, n 1 , of each of segments 12a, 12b. In Fig. 4, a succession of functional loads R1 t -R4 t  or branch transmission lines are coupled out, via secondaries 43, 53, 63, 73 having each the same number of turns related to the signal frequency range, from main line 40, either the same amount of power being tapped out from each transformer 41, 51, 61, 71 by successively increasing the proportions of the primary turns numbers in respective segments 42a, 42b; 52a, 52b; 62a, 62b, as shown, or a given proportion of the remaining input power may be tapped out at each transformer. The line signal is a binary pulse code, a modulated carrier, or an A.C. signal. The system is applicable to telephone systems without amplifiers at the branching taps. It is stated that signal delay on the main transmission line is very small since complete transformer action is not needed for such signal propagation.
Patent GB-285236-A (GB)
Title: Improvements in variable speed power transmission mechanism
IPC: F16H61/02
Filed: 1927-01-27
Abstract: 285,236. Mason, A. E. Jan. 27, 1927. Variable-speed and reversing gearing comprises an epicyclic train 1, 5, 4, Fig. 1, controlled by a worm 10 driven from a variable-speed electric motor, which is adapted to be used for starting a main engine coupled to a driving-shaft 2, The electric motor is controlled by suitable manual means or by a governor worked from the road-wheels of a vehicle. A variably-driven shaft 12 may be connected through a reversing train 14, 21, 15 to a shaft 13 which is reversed by actuating a double-ended splined clutch 16. The main engine is started from the control motor when the load shaft 12 is held against rotation. This may be done by putting the clutch 16 on neutral and advancing a brake block 34, Fig. 3, into gripping engagement with it by operating a screw 35. The clutch 16 may be operated by a crank 24 having three flats 29 engaged by a spring plunger 28, which holds the clutch in gear and neutral positions. Instead of the bevel main train 1, 5, 4, Fig. 1, three-element spur trains are described, the controlled element in one being the planet-carrier, and in the other, the internally-toothed ring.
Patent GB-524164-A (GB)
Title: Mounting of exhaust gas rotary blowers on aircraft engines
IPC: F02B67/10
Filed: 1939-01-23
Abstract: 524,164. Pumps. BAYERISCHE MOTOREN WERKE AKT.-GES. Jan. 23, 1939, No. 2339. Convention date, Jan. 21, 1938. [Class 7 (ii)] A radial-cylinder engine 2 for aircraft has an exhaust-gas turbine and blower unit 8 which is secured in a mounting-ring 6, 7, 9, fitted into a covering-ring 4 leading into the aircraft fuselage. In addition, the ring may be stayed to the engine ring 11 or to the fuselage. The unit is arranged eccentrically in the ring so that the turbine is against the cool wall of the ring. The exhaust gases from the different cylinders are discharged into collecting-pipes 17, 18 which run around the inside of the engine covering hood 1 near the cooling-air outlets, so that the gases are partly cooled before passing to the turbine. The blower draws air from a storage chamber 12 and delivers it through two pipes, in each of which is a cooler, either direct or through a second blower stage to the engine charging air pipe. There may be yielding sections in the pipes leading to the unit.
Patent GB-739759-A (GB)
Title: Improvements in or relating to electric contact plugs comprising a resilient envelope
IPC: H01R43/24
Filed: 1954-01-26
Abstract: 739,759. Two-part couplings. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Jan. 26, 1954 [Jan. 29, 1953], No. 2346/54. Class 38 (1). [Also in Group V] A plug comprises a cord anchoring member 1 of thermoplastic material carrying pins 3 and an insulating rod 9 round which the cord 7 is wrapped, the member 1 having a channelshaped extension 11 in which the cord is secured by tags 15, 17, 19, 21 to hold it during the moulding of the resilient plug envelope 5, for example of p.v.c., round the member 1. For details of the mould (see Group V).
Patent GB-221146-A (GB)
Title: Improvements in volatile fuel vaporisers for internal combustion engines
IPC: F02M17/20
Filed: 1924-01-29
Abstract: 221,146. McDonald, H. E. Jan. 29, 1924. Vaporizers, external; heating charge.-Liquid fuel is vaporized by surrounding its container by a jacket in which hot air is in circulation from an air heater to the exhaust, some of the hot air being allowed to bubble through the liquid fuel, the resulting mixture being then drawn by suction through a mixing chamber and an atomizing device to the induction pipe of the engine. The air heater comprises a number of casings 22, 24, 26, concentric with the exhaust pipe 21; the air enters the outer casing and is drawn, as shown by the arrows and circulated round the vaporizer by pipes 32, 34 containing valves 37, 36. Hot air is also drawn through a pipe 28, containing a cold-air valve 30, to branch pipes having valves 44 by which it is distributed in a jacket space on the side 19 of the vaporizer. It then passes. through tubes 47, up the other side of the apparatus to a space 70 and down tubes 49 having adjustable spring-loaded valves 52, to crossed tubes 50 having perforations on their undersides through which it escapes to bubble through fuel in containers 38, 39. These may be filled through valves 63 with light and heavy fuels respectively, but if the same fuel is used the two levels are equalized by a syphon pipe 74 having valves 75. The mixture is drawn off to a mixing chamber 40 by pipes 57 having gauze baffles 58 and drains 59. Deposited fuel drops to the bottom of the space 60 from which it can be returned through valves 61. The mixing chamber contains gauze partitions 65. The mixture passes out by a pipe 66 to an atomizing device 41 which comprises a series of connected U pipes having finely perforated metal or gauze diaphragms at each bend. The mixture then passes to the induction pipe through a junction having valves 15, 17 for admission of hot or cold air. A priming device 20 is provided. The containers 38, 39 may have anti-surge baffles, and more than two containers may be used.
Patent GB-684495-A (GB)
Title: Improvements in and relating to high frequency electric heating apparatus
IPC: H05B6/36
Filed: 1950-01-30
Abstract: 684,495. Induction heating. GENERAL ELECTRIC CO., Ltd., and CURTIS, P. B. Jan. 30. 1951 [Jan. 30, 1950], No. 2407/50. Class 39(iii) A transformer primary winding 10 is surrounded by a single turn secondary winding 11 split longitudinally at 12 and 13 and having workloops 15, 17 connected across the splits by pairs of tapered fins 14, 16. Alternatively, Fig. 2, the winding 10 surrounds the winding 11, and the workloops 25, 27 are coaxial and are fed from diametrically opposed pairs of fins 24, 26.