baber/WOPTO huggingface dataset:
Patent GB-872150-A (GB)
Title: Improvements relating to the finishing of textile fabrics
Inventor: DUCKWORTH HENRY MOSS
IPC: D06M15/39
Filed: 1958-03-17
Abstract: Textile fabrics which have been finished (to improve their dimensional stability and the washfastness of mechanical effects, such as glazing, embossing, beetling, schreinering and pleating) by applying a solution of a condensation product of acetone with formaldehyde, drying and heating the dried fabric to insolubilize the resin, are after-treated with an oxidizing agent to prevent discolouration of the fabric during subsequent heating or exposure to light.  Suitable oxidizing agents are hydrogen peroxide, sodium peroxide, sodium percarbonate, sodium perborate, sodium hypochlorite and sodium chlorite.  The resin-treated fabric may be treated with a solution of the oxidizing agent and then steamed or stored in the wet state for a sufficient time to allow the necessary reaction to take place, or it may be steeped for a sufficient time in a solution of the oxidizing agent.  After the oxidation treatment the fabric may be rinsed in water and, if the oxidation treatment was carried out in an alkaline medium, may be rinsed in a weak acid.  The oxidizing solution may contain sodium silicate and magnesium sulphate.  The treatment of cotton fabrics is described.
Patent GB-258218-A (GB)
Title: Improvements in or relating to metallic vapour tubes functioning as switches for alternating current
IPC: H01J17/04
Filed: 1926-03-29
Abstract: 258,218. Siemens & Halske Akt.- Ges. Sept. 11, 1925, [Convention date]. Low-pressure metallic-vapour apparatus.- Alternating-current power circuits are made and broken by supplying the power through mercuryvapour apparatus or switch tubes which are so ignited twice during one period of the supply current that the discharge is produced at the electrode which is negative at the time and consequently both halt waves of the current traversethe apparatus. By disconnecting the ignition circuit the discharge is stopped and the power circuit broken. As shown in Fig. 2, in which an A.C. generator supplies a load 13 through the switch tube 11, the ignition poles 16, 17 are connected to the secondaries of transformers 18, 19, the primaries of which are connected across the alternating-current line through condensers 20, 21 and the switch 22. Ignition voltage is supplied alternately to the poles 16, 17 so that the power current is transmitted by the vapour ap.- paratus.
Patent GB-716644-A (GB)
Title: Improvements in and relating to pressurised electric switches, particularly of the liquid contact type
IPC: H01H29/04
Filed: 1952-04-03
Abstract: 716,644. Electromagnetic switches; switch cases; switch contacts. KLASEK, V. April 3, 1952, No. 8551/52. Addition to 653,343. Class 38(5) The switch of the parent Specification is modified in that the metal rings 1, 2 are shrunk on to the partition walls 6 so that they grip the walls in a pressure-tight manner. The walls 6 may be provided with ribs or, as shown, separate spacing discs 8 interposed between the adjacent ends of the rings. Thermoplastic bonding medium may be used to seal the rings on to the partitions and to close any gaps between the discs 8 and the partitions. A frame 10 and a spring 11 apply extended pressure to the switch assembly to enable it to resist the internal gas pressure. Metal cooling rings 5 may be shrunk on to the metal rings 1, 2, the rings 5 also co-operating with connecting clips. The switch shaft assembly, Fig. 1, is rotated by an armature 20 against the bias of a spring 19 when a coil 21 is energized to bring contacts 14 into or out of mercury pools 17. In the arrangement of Fig. 3, a contact 40 having an arch-resistant tip 43 is moved linearly by a piston-like armature 44, the armature having a skirt which dips into a pool of mercury 47 to ensure adequate contact between the rod 40 and ring 2 before the rod enters the pool 42, to complete a circuit from ring 2 to ring 1. Suitable bonding media for sealing the rings on to the partition or partitions are specified.
Patent GB-569974-A (GB)
Title: Improvements in or relating to dental prosthesis
IPC: C08F2/50
Filed: 1943-05-28
Abstract: A photopolymerizable composition useful in dental prosthesis comprises acrylic or methacrylic acid, or their anhydrides or esters alone, or in admixture with one or more polymeric compounds, together with catalytic amounts of an organic compound having a chain of 2-3 vicinal carbon atoms, inclusive, each attached to but one oxygen, at least one of the vicinal carbons being doubly linked to oxygen, no oxygen being attached to more than one of the vicinal carbons, any valencies of said oxygens not satisfied by carbon being satisfied by hydrogen and any remaining valencies of the vicinal carbons being satisfied by hydrogen or a monovalent hydrocarbon radical.  The preferred catalysts are benzoin and diacetyl, but lists of suitable alpha-carbonyl alcohols and vicinal polyketaldonyl compounds, e.g. R.CO.CHOH.R1 and R.(CO)n.R1, are given.  Minor proportions of other monomers containing the group >C=C< may also be present.  Where a polymer or mixture of polymers is present, at least one is derived from a monomer of acrylic or methacrylic acid or their anhydrides or esters, the others being derived from monomers containing a >C=C< group.  Specified monomers from the above group are methyl methacrylate, methyl acrylate, methyl chloroacrylate, ethylidene dimethyl acrylate, methylene dimethacrylate, methallyl methacrylate, and acrylic and methacrylic anhydride.  The preferred composition comprises methyl methacrylate with a small amount of methallyl methacrylate.  A conventional catalyst, e.g. benzoyl peroxide, may be used with the photopolymerization catalyst.  In examples, compositions are described consisting of mixtures of methyl methacrylate monomer and polymer, and (1) benzoin and lauryl peroxide; (2) methacrylic anhydride and benzoin with or without benzoyl peroxide; and (3) methallyl methacrylate with (a) diacetyl, titanium dioxide, calcium sulphate, lamp black and sienna; or (b) lauroyl peroxide and benzoin; or (c) methacrylic anhydride and benzoin; or (d) benzoyl peroxide and benzoin.  Specification 567,776 is referred to.
Patent GB-921473-A (GB)
Title: Improvements in and relating to static eliminators
IPC: H05F3/04
Filed: 1961-03-09
Abstract: 921,473. Discharging static electricity. MEECH ELECTRIC DRIVES (LONDON) Ltd. March 9, 1961 [Nov. 7, 1960], No. 8710/61. Class 35. A device for eliminating unwanted electrostatic charges comprises a conductor maintained at a high potential and capacitively coupled to a plurality of needles, each extending into an aperture of a casing surrounding the conductor and needles. As shown, a conductor 18 has an insulating sleeve 20 on which are alternately threaded conductive sleeves 24 and insulating sleeves 26. A further insulating sleeve 28 covers sleeves 24, 26. A conductive needle 36 is mounted in the sleeve 28 in contact with each conductive sleeve 24 so that each sleeve 24 provides a capacitive coupling to the central conductor 18 which is connected to a high voltage source. The central assembly is supported in insulating spacers 40 at each end of an earthed brass tube A, having apertures 14 in line with each needle electrode 36. Further apertures 16 are provided for cleaning.
Patent GB-1152297-A (GB)
Title: Improvements in Coaxial Cables
Inventor: DELVES-BROUGHTON PAUL NICHOLAS
IPC: B29C48/11
Filed: 1968-02-22
Abstract: 1,152,297. Extruding air spaced coaxial cables. STANDARD TELEPHONES & CABLES Ltd. 22 Feb., 1968, No. 8741/68. Heading B5A. [Also in Division H1] Apparatus for extruding a dielectric around the central conductor of a coaxial cable comprises, means for forming a number of longitudinal passageways in the dielectric, and means for blocking each passageway periodically with the extrudate. The passageways are formed by tool segments 9, each of which has an air duct 13, connected to a valve, the series of valves being sequentially operated by a cam, so that the ducts are closed or partially evacuated periodically.
Patent GB-877556-A (GB)
Title: Purification of a vitamin a intermediate
Filed: 1959-03-13
Abstract: The invention comprises a compound obtained by the reaction of a compound of formula I <FORM:0877556/IV (b)/1> referred to as oxenin, with an alkali metal hydroxide, one mole of said compound containing from about 1 to about 1.5 moles of alkali metal, and a process for the purification of a compound of formula I which comprises adding an aqueous solution of from about 5% to about 70% by weight of an alkali metal hydroxide to the aforesaid crude compound, recovering the resulting product and treating said product with acid.  Crude oxenin is obtained by condensing 2-methyl-4 - (2,6,6 - trimethylcyclohexen-1-yl)-but-2-enal with 3-methylpent-2-ene-4-yne-1-ol in a Grignard reaction.  As alkali metal hydroxides there may be used sodium, lithium or potassium hydroxides.  Examples illustrate the use of various starting compounds and solvents.
Patent GB-216981-A (GB)
Title: An improved aerial for wireless reception
IPC: H01Q1/12
Filed: 1923-03-28
Abstract: 216,981. Vincent, A. W. March 28, 1923. Aerials.-A cone-shaped aerial comprises a plurality of wires B connected at their upper ends to a copper ring A and having their lower ends secured in an insulator D by the head C of a terminal.
Patent GB-397793-A (GB)
Title: Improvements in and relating to electrically driven machines for producing mesh fabric and particularly to knitting machines
IPC: D04B15/99
Filed: 1933-03-23
Abstract: 397,793. Knitting-machines. SINFRA AKT.-GES., ST. GALLEN, St. Gallen, Switzerland. March 23, 1933, No. 8832. Convention date, March 24, 1932. [Class 74 (ii).] An electric motor for driving a knitting-machine is placed below and embodied as a unitary structure with the knitting head so as to form a support for it. The head may be carried on the upper bearing brackets of the motor and a distance piece. A reduction gear may be provided. The needle cylinder 80 may be mounted in independent bearings 11 above the motor and flexibly coupled thereto. In a modification the cylinder is fixed and the cam box is carried by the armature shaft 7. The needle and cam cylinders may be driven in opposite directions. The control switch 15 is mounted on the motor casing 1. Aplurality of knitting machines may be arranged as a multiple unit. When alternating current is used the speed of the motors can be regulated by varying the periodicity of the current. The hooks of the needles may face outwards or inwards.
Patent GB-983852-A (GB)
Title: Hydraulic pumps
IPC: F04D1/12
Filed: 1961-03-10
Abstract: 983,852. Centrifugal pumps. C. S. TARIFA, and J. V. PEDROSA. March 10, 1961 [March 18, 1960], No. 8862/61. Heading F1C. An hydraulic pump comprising an annular container 8, Fig. 1, forming a collecting chamber of U-shape cross-section rotatable on a shaft 1 and retaining a quantity of liquid at its outer periphery by centrifugal force, has at least one liquid inlet pipe 13 mounted rotatably on the shaft and extending radially into the container to terminate in an injection nozzle 14 disposed substantially tangentially with respect to the periphery of the chamber and facing in the direction of rotation, means for rotating the container in the same direction as the inlet pipe but at a higher speed to impart a high tangential velocity to the liquid injected therein, at least one liquid outlet pipe 7 extending radially into the container to scoop liquid therefrom, and means for maintaining the quantity of liquid retained in the container between maximum and minimum limits. The container is rotated at twice the speed of the inlet pipe through a V-belt drive 2 to 5. Alternatively, the container may be provided with internal vanes and rotated at a speed greater than that of the inlet pipe by the injected liquid. The outlet pipe 7 is stationary and faces in opposition to the direction of rotation. A disc 10, through which the container is driven, may be formed by one of the side walls of the container. The inlet and outlet pipes may be straight or curved, and a number of inlet pipes may be arranged in a single hollow disc. The outlet pipe may be of streamlined profile and the orifice therethrough may be of oval or circular cross-section. The radial depth of the liquid in the container is inherently controlled by the outlet pipe. However, further control may be obtained by a counterbalanced plate having a part with a V- shaped cut-out, the plate riding on the surface of the liquid to control the opening of the nozzle by the cut-out part. Alternatively, the inlet pipe may have a tube 38, Fig. 10, through which liquid entering opening 39 creates a back pressure in the nozzle 37 dependent on the quantity of liquid in the container. In a further alternative a pair of hollow arms mounted on the same shaft as, and rotating with, a pair of inlet pipes, curve to open into the container in a direction opposite to the direction of rotation so as to scoop away any surplus liquid.
Patent GB-962486-A (GB)
Title: Improvements in laundry ironing machines or calenders
Inventor: BOWHAY SAMUEL LANGDON
IPC: D21G1/00
Filed: 1962-03-08
Abstract: 962,486. Ironing machines or calenders; finishing fabrics. TORQUAY LAUNDRIES Ltd. Feb. 27, 1963 [March 8, 1962], No. 8944/62. Headings D1A and D1S. An ironing machine or calender comprises a heated roll 7 supported in a heated bed 5 and a heater 9 arranged above the roll 7 arranged so that articles pass over the surface of the heater 9 after leaving the roll 7. The heater 9 comprises a steam chest, and the articles are guided in contact with it by means of bands 15. The shape of the steam chest 9 is such to guide the article on to a second roll 8.
Patent GB-891459-A (GB)
Title: Process for the production of a new therapeutic preparation
IPC: A61K33/26
Filed: 1957-03-19
Abstract: A therapeutic preparation comprises an admixture of a phenol and formaldehyde and, if desired, ferrous sulphate, in aqueous solution with one or more vitamins.  A reaction is stated to occur analogous to the spontaneous decomposition of radioactive substances and the preparation is stated to prevent or cure many, if not all, diseases and disorders.
Patent GB-1034874-A (GB)
Title: Penicillins
Inventor: JANSEN ALEXANDER BERTUS ARNOLD
IPC: C07D499/52
Filed: 1964-03-03
Abstract: The invention relates to a penicillin of formula <FORM:1034874/C2/1> where R1 and R2 are hydrogen, alkyl or aryl; and salts thereof.  The penicillins are produced by reacting a keten dimer of formula <FORM:1034874/C2/2> where R1 and R2 have the above meanings, with 6-aminopenicillanic acid, or a salt thereof, in the presence of a base.  A typical penicillin is ethanoylethylpenicillin.ALSO:Pharmaceutical compositions comprise a carrier and a penicillinase-resistor penicillin of formula <FORM:1034874/A5-A6/1> or a salt thereof, where R1 and R2 are hydrogen, alkyl or aryl.  The preparations may be used topically, orally or parenterally.  Other drugs, particularly other penicillins, may be present.  Preparations may be in the form of tablets, capsules, granules, troches, cachets, aqueous or oily suspensions.
Patent GB-573457-A (GB)
Title: Improvements in conveyor ovens
IPC: A21B1/48
Filed: 1944-05-12
Abstract: 573,457. Conveyer ovens. DUMBLETON, C., GUNSTON, D., and BAKER PERKINS. Ltd. May 12, 1944, No. 9111. [Class 51 (ii)] A conveyer oven with direct heating means arranged internally of the oven is provided with means for circulating the oven gases by extracting proportions of the whole from one or more localities of the chamber by means of a fan and reintroducing them in controlled. proportions. The oven is of the tunnel type with a band conveyer 1 traversing the gasheated tunnel 2. Gas burners 3 are distributed throughout the oven, the underside of the conveyer being screened by a screen 4 dividing the chamber longitudinally. In the central region are vertical conduits 5, controlled by dampers 7, adjacent to each side wall opening into the oven at 6, so that the oven gases may be withdrawn from below the screen. Gases may be withdrawn from above the screen through an aperture 10 controlled by a damper 12 ; the gases pass to a collecting box 8 coupled to the suction diameter 18 of a fan by a conduit 17. The outlet 19 from the fan discharges into a conduit 20, having forked portions 21, 22 with a valve flap device 23. The branches are connected to independent trunks 24, 25 arranged longitudinally of the oven adjacent to the roof and fitted with nozzles 26. The trunk 24 as it passes through the collecting box has a raised portion 24a to avoid masking the openings 10 and 5. On the discharge side of the fan a byepass conduit 39, controlled by a damper 41, is provided whereby a proportion of the products of combustion may be discharged to the chimney 40.
Patent GB-327000-A (GB)
Title: Improvements in mixing machines
IPC: B01F15/00
Filed: 1929-03-21
Abstract: 327,000. Wallace, A., and Wallace, W. M. March 21, 1929. Stationary mixers with rotary stirrers.-A mixing-machine comprizes a horizontally-disposed cylindrical chamber provided with filling and discharge openings and end covers, one or each of which is removable, and a shaft extending axially and fitted with radial arms and spokes, the latter being connected by scroll-like blades which sweep the entire inner surface of the chamber. The arms 14, 16 and spokes 15 are mounted on sleeves 7 - - 13 which are strung on the shaft 6 and can be removed bodily on the removal of an end cover 3. The arms 14, 16 may pass through slots in the sleeves and shaft and be secured by grub screws, or may be fitted with screwed shanks threaded into apertures in the shaft and secured by nuts. The shaft is driven from a shaft with fast and loose pulleys through a worm reduction gear.
Patent GB-831330-A (GB)
Title: A new or improved method of and apparatus for the manufacture of coloured ceramic ware
Inventor: LUNN THOMAS WILMOT
IPC: B28B19/00
Filed: 1956-03-24
Abstract: 831,330. Moulding ceramic articles. WORCESTER ROYAL PORCELAIN CO. Ltd. March 25, 1957 [March 24, 1956], No. 9254/56. Class 87(2). [Also in Group X]. Coloured ceramic ware is made by applying coloured material in liquid form to the surface of a rotating mould, then forming the ware by applying ceramic material in mouldable form to this mould and finally removing the hardened moulded ware with the coloured material adhering to it and finishing it by firing &c. The ceramic material may be applied in a plastic state and moulded by shaping tools or manually, or it may be in liquid form and shaped by casting in a mould. The coloured material comprises ceramic material, colouring material and an aqueous liquid. To facilitate application of the coloured material to part of the mould, that part may be removable, or it may be recessed as at 151, Fig. 3. Apparatus for use in applying coloured slip to an annular zone on a mould comprises a cabinet 20, Fig. 4, having two opentopped chambers 21, 22, each containing a rotary mould support 27, 28 respectively ; the support 27 which is driven by a motor 42 has associated with it a nozzle 14 connected to supply container 63. Coloured slip is conveyed to the container 63 from a main tank by a pipe 90 connected to a pump 89 which also is driven by the motor 42. The nozzle 14 has an outlet of the same width as the annular zone to be coated, the flow of slip being controlled by valve means. The nozzle is slidable radially with respect to the mould and is adjustable angularly, the angle between the flow of slip and the surface of the mould being in the range 15 to 25 degrees. Also associated with the chamber 21 is a spray nozzle 95 for supplying wetting liquid to the mould prior to the application of coloured slip. The rotation of the support 27 is controlled by pneumatically operated clutch and brake ; the pneumatic actuating devices for controlling the clutch, brake, nozzle slide, nozzle valve, and the control valve for the wetting nozzle 95 are operated in timed relation by means of cams 118-122 on the cam shaft 136. To remove any surplus coloured slip from the area 18 of the mould beyond the recess 151, the mould is transferred to turntable 32 driven by a separate motor 153, and is acted on by a scraping tool consisting of a wire held in tension between the limbs of a bifurcated holder. The scraping tool can also be actuated pneumatically. The Provisional Specification describes also apparatus having more than one nozzle for applying coloured slip so that different colours can be applied simultaneously. The nozzle may also be movable radially during rotation of the mould so that a non-circular, e.g. wavy. band is applied.
Patent GB-828359-A (GB)
Title: A device for vapo rizing liquids
IPC: F24H1/00
Filed: 1957-03-21
Abstract: 828,359. Electric heating. METAALINDUSTRIE POST & EGER (P & E) N. V. March 21, 1957 [March 24, 1956], No. 9310/57. Class 39(3) A vaporizing chamber 12 has a liquid supply opening 2, a vapour outlet 3, and a resistance heating element 7, Fig. 2, which is corrugated and helically wound about an insulating core 8. The ends of the element are secured to clips 9 attached to the core, together with the ends 11 of insulating material which is wound over the element, and the ends of an insulating cord 10. Vaporizing liquid is fed to the opening 2 from a closed liquid supply tank 13 through a passage 14, and the junction of this passage with the chamber 12 defines the constant liquid level in the chamber during operation to provide a vapour of constant temperature. The passage 14 connects with a double walled cylindrical heat exchanger 15, open at the top, and having a relatively small liquid inlet 16. The spaces above the liquid in the chamber and tank are thereby interconnected, and the passage 14 also functions as a pressure equalizing passage so that liquid or vapour can flow between the chamber and tank to maintain the liquid level in the chamber constant and also to preheat the liquid in the tank. An adjustable pressure switch 17 is mounted in the tank and cuts off, via a relay, the heater current when the vapour pressure exceeds a predetermined value. A modification in which the vapour chamber is located within the liquid supply tank is described. Specification 766,607 is referred to.
Patent GB-431457-A (GB)
Title: Machines for shearing or bending the edges of metal sheets
IPC: B21D5/02
Filed: 1935-03-26
Abstract: 431,457. Treating sheets. MASCHINENFABRIK WEINGARTEN VORM. H. SCHATZ AKT.-GES., and WACHTER, A., Weingarten, W³rtemberg, Germany. March 26, 1935, No. 9378. [Class 83 (iv)] Shearing; angular bending.-In a machine for shearing or bending, the edges of sheets, the crosshead carrying the tool or die carries means for flexing the tool to counteract the bending of the tool in use. A crosshead 11 reciprocated by eccentrics carries a holder 21 with wedge members 25 engaging wedge members 22 engaging the rear of the tool 12. The wedge surfaces 24 are more inclined towards the inner ends of the members 25. The tool 12 is bowed by adjusting the screws 26.
Patent GB-562051-A (GB)
Title: Wall tie
IPC: E04B1/41
Filed: 1943-06-11
Abstract: 562,051. Wall-ties. WOOD, R. June 11, 1943, No. 9400. Drawings to Specification. [Class 20 (iv)] A wall tie is formed of a strip of metal with a central square hole and with cut-out end parts bent over at right angles.