baber/WOPTO huggingface dataset:
Patent GB-727289-A (GB)
Title: Improvements in containers and handles therefor
Inventor: ALEXANDER SYDNEY CHARLES
IPC: B65D25/28
Filed: 1953-02-28
Abstract: 727,289. Portable containers. VALOR CO., Ltd. Feb. 26, 1954 [Feb. 28, 1953], No. 5687/53. Class 66. A can 10 is provided with carrying and pouring handles 18, 17 respectively which are connected with one another and form loops in a single structure and the carrying handle 18 embraces and supports, e.g. by a welded joint 21, a pouring spout 19. Preferably the handles and spout are contained in the same vertical plane and the filler orifice is mounted to one side of this plane. As shown the handles 17, 18 are made as loops in one continuous strip of metal secured to the can at the two ends and between the loops.
Patent GB-231444-A (GB)
Title: An improved process for separating out the less easily condensable constituents from gaseous mixtures by partial liquefaction, more particularly for obtaining pure hydrogen, free from carbon monoxide, from water gas
IPC: F25J3/08
Filed: 1925-03-02
Abstract: 231,444. Ges. f³r Linde's Eismaschinen Akt.-Ges. March 31, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Separating gaseous mixtures by liquefaction.-In the separation of a gaseous mixture by partial liquefaction under pressure, the more easily liquefiable constituents after the main quantity has been separated out by condensation at a low temperature, are removed by washing out with a neutral liquid solvent, the vapour of which replaces them. The liquid solvent, for example liquid nitrogen, may be used as a refrigerating liquid in the separation of the gaseous mixture for example water gas. Compressed water gas is passed through a counter current heat exchanger 1 and a refrigerating coil 2 into a column 4 wherein it is washed by a descending stream of liquid nitrogen obtained from an air-liquefying plant. The carbon monoxide present is condensed out, and the hydrogen passes out mixed with some nitrogen through the heat exchanger 1. The liquid nitrogen and carbon monoxide collecting in the column is expanded through a valve 6 into a vessel 3 where it cools the coil 2 and is evaporated, the vapour passing off through the heat exchanger. When it is desired to obtain hydrogen practically free from nitrogen, the gas escaping from the top of the column is passed through a coil in a refrigerator 7 wherein nitrogen is boiled in vacuo.
Patent GB-564826-A (GB)
Title: Ultra-high frequency receiver
IPC: H03D1/26
Filed: 1941-05-02
Abstract: 564,826. Electron-oscillators. STANDARD TELEPHONES & CABLES, Ltd. May 2, 1941, No. 5721. Convention date, July 13, 1940. [Class 39 (i)] Apparatus for the amplification and detection of high frequency oscillations comprises two hollow resonators 12, 20 through which a cathode-ray beam passes in succession. The beam is velocity modulated at the grids 14, 15, and after passing through the drift tube 16, gives up some of its energy to the second resonator at the grids 21, 23. The average speed of the beam is thereby reduced, and a transverse magnetic field, produced by a coil 26 or permanent magnet, in the chamber 24 deflects the electrons differentially, some falling on an output electrode 25 to form a detected component which may be transmitted by the line 27 to a receiver or amplifier connected between the line 27 and the chamber 24. Two collecting electrodes may be provided for fast and slow electrons and connected to the receiver in push-pull arrangement. The deflection of the beam may be assisted by giving the collecting electrodes a positive potential and by mounting another negatively biassed electrode in the chamber 24. Energy may be taken from the resonator 20 by a line 28 and applied to other purposes. For regenerative action, a feedback circuit is provided comprising a section of transmission line 30, preferably one half wavelength or a multiple thereof, and a flexible concentric line 31, which may be adjustably connected to the line 30 to maintain the required phase relations.
Patent GB-429056-A (GB)
Title: Improvements in or relating to circular knitting machines
IPC: D04B9/10
Filed: 1934-02-21
Abstract: 429,056. Knitting-machines. SPIERS, Ltd., W., Walnut Street, Leicester, and KENT, A. W., Swithland, Leicester Road, Groby, Leicestershire. Feb. 21, 1934, No. 5737. [Class 74 (ii)] The web is held well back, out of the way of the needles, when slack fabric is being made to prevent them when they clear, from penetrating previously formed courses. For this purpose the sinkers or web holders of circular rib machines with double-ended needles are projected farther in than usual, when making slack fabric. This adjustment of the sinker cams may be effected conjointly with the adjustment of the stitch cams to draw slacker loops. The sinker cam ring 1 is slidably mounted for adjustment vertically on the outside of the sinker cup 2 and is connected to the upper end of a sleeve 3, slidable axially within the cup. The connection consists of radial pins 4 passing through vertical slots 5 in the wall of the cup 2. The sleeve 3 is mounted in a sleeve 6 suspended within another sleeve 7 on springs 11. A plate 9 connected to the lower end of the sleeve 6 is drawn down, by the action of a cam 12 on an arm 10, so as to lower the cam ring 1 as required. Specifications 23560 /95, 15008/00, [both in Class 74], and 24290/12, [Class 74 (ii)], are referred to.
Patent GB-293071-A (GB)
Title: Process of and apparatus for producing liquid dispersions
IPC: B01J13/00
Filed: 1927-03-01
Abstract: 293,071. Anode Rubber Co., Ltd., (klein, P., and Szegvßri, A.). March 1, 1927. Ball and like mills. - Fine or colloidal dispersion of substances in liquids are made by subjecting a dispersion of the substance, with or without the addition of protective colloids, to the action of hard, rounded-off, grinding elements maintained in relative movement by means of a stirring device. The grinding elements may consist of quartz or flint stones of from 1 m.m. to 8 m.m. in size together with the larger balls of porcelain, and the process may be carried on continuously means being provided for returning the coarser particles in the discharge to the apparatus. Fig. 4 shows a form in which centrifugal separating apparatus is provided for this purpose. The grinding takes place in a container 1 to which the substance to be treated is fed through the hollow stirring shaft 4a and stirrer 5. Mounted on and rotating with the shaft are concentric conical members 9<a>, 11, 9<b>, 14 forming a passage 15a through which the material is discharged; the coarser particles return by the outer passage 12 while the lighter part passes through the passage 9<b> and is discharged at 10. Figs. 5 and 6 show a form in which the separator consists of perforated conical members 16 which throw out the coarser particles to be collected by a bucket-wheel 20 and returned to a central orifice 21 communicating with a tube 22 surrounding the hollow stirring shaft. In a modification of this form, the conical members 16 are mounted on a separate and separately-driven shaft concentric with the shaft 4a. Means may be provided for attemperating the material as shown in Fig. 8 in which the grinding-apparatus 1 discharges into a jacketed vessel 30 which may be fitted with a stirrer and from which the material is led by pipes 31 and a pump 32 back to the grinding apparatus. The finer particles are led from the vessel 30 by a pipe 10<a>, and in this form the material is fed by a pipe 33.
Patent GB-726912-A (GB)
Title: Improvements in and relating to gas-heated appliances
IPC: F23N5/06
Filed: 1952-03-05
Abstract: 726,912. Valves. GERSTMAYR, L. A. March 5, 1952 [March 5, 1951; Dec. 21, 1951], No. 5773/52. Class 135. A method and safety device for preventing escape of gas from gasheated appliances in which a slow-acting selfclosing valve, in addition to a main cock, controls the gas supply and a detent mechanism holds the valve open when heated by the burner, the valve being opened by a manual actuator interlocked with the cock to prevent the valve opening except when the cock is closed. With the rotary cock 2 closed a flange cut-out 5 allows the button 4 to be pushed in to open a piston-valve 8 and raise a spring-loaded dashpot piston 11 provided with a disc check valve 15. On release, the spring 10 pushes back the button independently of the valve 8 and the cook 2 may be opened so that gas passes along conduit 7 to the burner. The piston slowly closes the valve 8 but if the burner is lit it heats a thermal bulb the fluid in which acts on a diaphragm or bellows to push a detent 16 into the path of the piston 11 to hold the valve 8 open. In a modification, the valve 8 lies within the cock and carries a coaxial cylinder for a fixed dash-pot piston. A single actuating knob has a hollow stem containing a tension spring for the dash-pot and carrying a valve interconnecting pin moving in slots in the housing and cock. In a further modification, the valve 8 is replaced by a conical valve formed on the dash-pot cylinder and seating on the end of the cock.
Patent GB-640156-A (GB)
Title: Improvements in circuit arrangements for operating electric discharge lamps
IPC: H05B41/34
Filed: 1947-02-28
Abstract: 640,156. Control systems for discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., and BEESON, E. J. G. Feb. 28, 1947, No. 5842. [Class 38 (iv)] [Also in Group XL (a)] A compact-source or H.P.M.U. lamp supplied from a D.C. source is started by a high-voltage surge applied between two electrodes of the lamp of which one is the anode A and the other may be an auxiliary electrode AE near the cathode K, the surge being obtained by the discharge of a condenser C, which has been charged to a materially higher voltage than that of the source, through two spark-gaps G1, G2. As shown, the anode and auxiliary electrode are each connected to the positive pole of the source through a resistance and highfrequency choke and the condenser is charged by the transformer T when a switch S is opened, an oscillatory discharge occurring when the condenser voltage becomes sufficient to break down the gaps and the space between auxiliary electrode and cathode. In Fig. 2 (not shown) the respective spark-gaps are connected to anode and cathode and the auxiliary electrode is dispensed with. The transformer windings are centre-tapped and interconnected as shown in Fig. 1. The arrangement may be used also when a two-wattage simmering arc is maintained in the lamp; the auxiliary electrode carrying this arc is then disposed as far behind the cathode as possible to minimize the light collected therefrom by the optical system. Specification 545,388, [Group XL (a)], is referred to.
Patent GB-918864-A (GB)
Title: Improvements in or relating to discharging devices for flushing cisterns
IPC: E03D1/08
Filed: 1960-02-19
Abstract: 918,864. Siphonic flushing cisterns. GEBERT & CIE. Feb. 19, 1960 [March 23, 1959], No. 5977/60. Class 26. In a discharging device for a flushing cistern which is siphon-operated, in the outer part of the siphon 1 there is a piston of two annular parts 19, 20, freely movable relative to each other, the part 19 being connected through two rods 22 to an operating member 31 whereby the piston can be raised and flow initiated. The siphon 1 has a tube 2 axially surrounded by a bell 3 and extending down through and attached to the cistern, the parts 19, 20 having play between them and the tube 2 and a portion 6 of the bell 3, respectively. The bell 3 has a portion 4 as shown, the rods 22 passing partly within the portion 6 and partly outside the portion 4 and being joined at the top by a yoke 26 connected to a lever 28 at one end 27. The lever 28 is pivoted about a pin 29 fixed to the cistern and at its other end is connected to the member 31. The part 19 is a flat ring, on which the part 20 rests in the resting position, being guided in moving by by the portion 6 of the bell 3. Connection to a flushing duct is by means of a cap nut 16 with a squeezed packing 17 and an inserted ring 18.
Patent GB-524073-A (GB)
Title: Improvements in radio circuit arrangements employing potential-variable capacity devices
IPC: H03J7/04
Filed: 1938-11-12
Abstract: 524,073. Automatic frequency control system. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., RUST, N. M., BRAILSFORD, J. D., OLIVER, A. L., and RAMSEY, J. F. Nov. 12, 1938, No. 6047/40. Divided out of 522,476 [Group XXXVI]. [Class 38 (iv)] [Also in Group XL] The oscillator frequency in a superheterodyne receiver is controlled by a potential variable condenser which may be of the kind described in Specifications 522,476 and 522,564, [both in Group XXXVI]. The control may be derived from a discriminator circuit and applied to a potential variable condenser connected across a part of the local oscillator tuning inductance, Fig. 2 (not shown). A polarizing voltage may be superinposed on the controlling voltage. The Figure shows the application to a remote controlled receiver in which a pair of contacts CO are provided and associated with the usually provided latching bar used with push-button tuning. The contacts CO are arranged to short circuit momentarily the potential condenser C to ensure that the polarizing voltage is always built up from zero to avoid hysteresis effect. Reference has been directed by the Comptroller to Specification 501,238, [Group XL].
Patent GB-1008153-A (GB)
Title: Improvements in or relating to paper and the like stacking means
Inventor: DAVIES ROY DENNIS
IPC: B41L1/00
Filed: 1964-03-10
Abstract: 1,008,153. Sheet retaining and stacking means. LAMSON PARAGON Ltd. March 10, 1964, No. 6211/65. Divided out of 1,008,152. Heading B6H. Sheet stacking means in a web severing machine comprises a tray 26 located at the outfeed side of the machine so that sheets severed from a perforated web 2 fall into the tray to form a stack against an adjustable guide 27, bouncing back of the sheets being prevented by three stacking rods 28 rested on respective rollers 29 freely rotatable on a shaft 29a. In operation the perforated continuous web 2 to be severed by bursting action is loaded on to an infeed tray 1, advanced between guides 3, 7 to arcuate guides 8 and infeed rollers 12, which advance the leading edge of the web to outfeed rollers 9 rotating faster than the infeed rollers 12 so as to sever a sheet from the remainder of the web. A stripper guide 10 is located adjacent the outfeed side of the roller 9, which is made of rubber, the upper one being made of metal. The infeed rollers 12 are mounted on plates 13 pivotally mounted on a shaft 14 to raise or lower the infeed rollers 12 for different lengths of sheets to be severed. The plates 13 are retained by catch bars 16 engaging holes 18.
Patent GB-734374-A (GB)
Title: A process for the isomerisation and separation of xylenes
IPC: C07C5/27
Filed: 1953-03-06
Abstract: Xylenes are isomerized by contacting in the vapour phase a mixture containing ethyl benzene and one or more xylenes with a microporous catalyst containing alumina promoted with not more than 5 per cent by weight of fluorine, in the presence of hydrogen and under a pressure of 50 to 1000 pounds per square inch gauge at a temperature of 350 DEG  to 485 DEG  C.  Preferably the catalyst has an available surface of at least 80 square metres per gram.  High surface aluminas, xerogels in which the alumina is composited with silica, beryllia, zirconia and/or magnesia, and aluminous clays are suitable.  The fluorine content is preferably 0.5 to 3 per cent by weight and may be incorporated by treating the alumina with hydrogen fluoride, ammonium fluoride, fluoroboric acid or other fluoriding agents in vapour phase or solution.  The catalyst may be used as a fixed or moving bed of granules or in powder form.  Liquid hourly space velocities of 1 to 5 are most suitable and hydrogen to hydrocarbon mole ratios of 1 to 10 or more may be used.  Liquid hydrocarbons may be condensed from the product and the hydrogen recycled.  Preferably an isomerized xylene is separated from the resulting product and at least a part of the remainder of said product is recycled to increase the concentration of ethyl benzene in the mixture subject to isomerization.  Ethyl benzene may also be separated from the product.  The process is particularly suitable for xylene fractions containing ethyl benzene in amounts above 8 per cent and up to 40 per cent or more.  A scheme for obtaining xylenes from a straight run gasoline comprises fractionation to separate a C8 fraction, catalytic dehydrogenation and extractive distillation to separate an aromatic fraction which is superfractionated to separate o-xylene as bottom product. p-Xylene is separated from the remaining product, for example by crystallization. The residue is split into two portions.  One portion is isomerized by the above process and the resulting mixture is recycled to the superfractionation stage.  The other portion containing mainly m-xylene and ethyl benzene may be withdrawn from the system or dehydrogenated to convert ethyl benzene to styrene, preferably in the presence of 5-20 moles. of steam per mol. of hydrocarbon at 590-630 DEG  C. and an iron oxide promoted chromium oxide and potassium oxide catalyst.  The styrene may be separated by fractionation and the remaining m-xylene recycled to the isomerization step.  In an alternative scheme, p-xylene is recovered from the aromatic fraction before removing o-xylene.  The mother liquor is divided into two portions, one of which is superfractionated to obtain o-xylene and a mixture of m-xylene and ethyl benzene and the other is isomerized by the above process then recycled to the crystallization step. Specifications 666,812 and 666,927 are referred to.  Reference has been directed by the Comptroller to Specification 680,138.
Patent GB-1387567-A (GB)
Title: Manufacture of detergent bars
IPC: C11D13/08
Filed: 1971-03-08
Abstract: 1387567 Soap plodder UNILEVER Ltd 6 March 1972 [8 March 1971 1 July 1971 10 Dec 1971] 6284/71 30783/71 and 57385/71 Heading B5A In a soap plodder the soap or synthetic detergent mass is forced through a perforated plate 1 to form rods between which liquid is introduced, and the rods are compressed together in a converging extrusion nozzle to emerge through a die 7 as a continuous mass containing striations of the liquid. Different liquids, e.g. dye solutions, pearlescent pigment dispersions, perfumes and germicides, are injected at points 10, 11 into semicircular conduits 12, 13 communicating with conduits 14 having apertures 15 facing downstream within the holes 9 of plate 1. A central dividing plate 16 extends downstream from plate 1. The holes 9 may be irregular or star-shaped to increase the surface area of the rods and therefore the striations. In another embodiment (Figs. 5, 7, not shown) liquid is injected downstream of the perforated plate by two pairs of nozzles mounted on the plate and supplying different liquids through non-return valves. A second perforated plate (19) is used to produce more diffuse striations. The extruded soap is cut into billets and may be twisted or stamped end-on or obliquely to modify the striations.
Patent GB-1444604-A (GB)
Title: Time division communication systems
IPC: H04Q11/04
Filed: 1973-07-27
Abstract: 1444604 Automatic exchange system WESTERN ELECTRIC CO Inc 27 July 1973  [31 July 1972] 06480/76 Divided out of 1444603 Heading H4K The Specification is substantially identical with that of the parent. The claims are specifically concerned with a conference system.
Patent GB-556142-A (GB)
Title: Melamine-aldehyde resinous products
IPC: C08G12/34
Filed: 1941-05-21
Abstract: 556,142. Resinous condensation products. TRIGGS, W. W. (American Cyanamid Co.). May 21, 1941, No. 6527. [Class 2 (iii)] Resinous condensation products are prepared by reacting an aldehyde, e.g. formaldehyde with a mixture containing dicyandiamide and melamine in a molar ratio between 8:1 and 4:1, the reaction being carried out under alkaline conditions and by heating at about 50‹C. until there is formed a partially condensed non- hydrophobe stable product which becomes a creamy white mass on cooling to room temperature, and which readily liquefies when heated above 50‹C. The reaction is best conducted at a pH of between 8 and 9, and at a temperature of 50‹C. for 6 hours. Specified alkalies are sodium hydroxide and guanidine carbonate. Examples are given. The products may be used in the preparation of laminated materials, electrical insulators, adhesives and moulding powders, and in the treatment of textiles. Specification 549,705 is referred to.
Patent GB-207142-A (GB)
Title: Improved process for treating ammonium chloride lyes in iron vessels
IPC: C01C1/16
Filed: 1923-03-07
Abstract: The process described in the parent Specification is modified by the employment of cadmium or cadmium salts in place of zinc for the prevention of corrosion of iron vessels used for evaporating solutions containing ammonium chloride, such as the residual lyes from the ammonia-soda process.  As in the parent Specification, a weak direct electric current may be employed in addition, and in a further modification a mixture of cadmium and zinc may be used with or without the electric current.  In one example, to a solution containing 15 per cent of ammonium chloride and 8 per cent of common salt, cadmium chloride is added until 0.5 per cent of cadmium is present.  Using an iron electrode as the anode, the vessel as the cathode, and a current of 0.07 amperes the wetted surface being 7 square decimetres, the solution is evaporated over a flame, and ammonium chloride crystals subsequently recovered by cooling.  In a second example, a lye containing the same amount of ammonium chloride and common salt as in the first example and in addition 1 per cent of zinc and 1 per cent of cadmium added either as metal or as chloride is evaporated in an iron vessel and crystallized.
Patent GB-871581-A (GB)
Title: Polyamide structures and process for their production
IPC: C12G3/02
Filed: 1958-02-28
Abstract: 871,581. Shaped aromatic polyamides. DU PONT DE NEMOURS & CO., E. I. Feb. 28, 1958 [Feb. 28, 1957; Feb. 5, 1958], No. 6636/58. Class 2(5). Fibres and films are made by shaping solutions of the aromatic polyamides disclosed in Specifications 871,578 and 871,598. Specified solvents which include the solvents used in the preparation of polyamides are amines, e.g. methylamine, ethylene diamine, pyrrolidine, triethylene tetramine, and tetraethylene tetramine; cyclic polymethylene sulphoxides of the structure: where R 1  is an alkylene group with 3-5 carbon atoms and amides of the structure: where R 1  and R 2  are alkyl, alkylene or bridging alkylene, R 4  is alkylene, bridging alkylene, alkyl or hydrogen, a is 1 or 2 and b is 0 or 1. The examples describe the preparation of polyamides from iso and/or terephthalic acid and m-phenylene diamine, p-phenylene diamine, bis (4-aminophenyl) methane, 2, 2-bis (4-aminophenyl) propane, 4-methoxy-m-phenylene diamine, 4, 6- diamino-m-xylene, 2, 4-diamino toluene or 3, 3<SP>1</SP>- dimethyl benzidine. Solvents specified in the examples for use in the preparation of fibres and films are dimethyl formamide, dimethyl acetamide, dimethyl tetramethylene sulphone, N- methyl pyrrolidone, N-acetyl pyrrolidone, tetramethylene sulphoxide, tetrahydrofuran and water, N, N, N<SP>1</SP>, N<SP>1</SP>-tetramethyl urea, hexamethyl phosphoramide and N, N-tetramethylene- N, N<SP>1</SP>-dimethyl urea. Specification 871,580 also is referred to.