baber/WOPTO huggingface dataset:
Patent GB-1277733-A (GB)
Title: Manufacture of bipyridylium salts
Inventor: COLCHESTER JOHN EDWARD
IPC: C07D213/22
Filed: 1968-07-01
Abstract: 1277733 Bipyridylium salts IMPERIAL CHEMICAL INDUSTRIES Ltd 12 June 1969 [1 July 1968 11 Sept 1968 8 Oct 1968 1 Nov 1968 23 Dec 1968 17 Feb 1969] 31365/68 43147/68 47585/68 51850/68 61012/68 and 8509/69 Heading C2C 1,1<SP>1</SP>-Disubstituted-4,4<SP>1</SP>-bipyridylium salts in which the substituents are organic substituents having up to 10 carbon atoms, are prepared by reacting an N-substituted pyridinium salt with a cyanide under basic conditions and subsequently oxidizing the resulting interaction product to produce the bipyridylium salt. Preferably the reaction is carried out in a solvent for the pyridinium salt e.g. water or an organic solvent or a mixture of water and a water-miscible alcohol. The reaction with the cyanide is preferably carried out in the presence of an added base, e.g. sodium hydroxide. The preferred N-substituents in the pyridinium salts are alkyl radicals and carbamidoalkyl radicals. The pyridine may also carry further substituents e.g. one or more alkyl groups. The intermediate product may be oxidized by air or with an oxidizing agent which is an electron acceptor and has a redox potential in water more positive than -0À50 volts as compared with a saturated calomel electrode. Suitable oxidizing agents are ceric sulphate (in the presence of dilute sulphuric acid); metal halides; inorganic oxyacid anhydrides, especially sulphur dioxide; chlorine; air preferably in conjunction with water and/or carbon dioxide and/or an acid; and organic oxidizing agents e.g. benzoquinone, chloranil and anthraquinone. The oxidation is preferably carried out under acidic conditions. A bipyridylium salt may be separated as a salt of amsonic acid which can be acidified by treatment of another acid e.g. hydrochloric acid, phosphonic acid or acetic acid to give the corresponding salt. The 1, 1<SP>1</SP>-disubstituted-4,4<SP>1</SP>-bipyridylium cation may also be separated from the reaction mixture by treatment with a suitable ion exchange resin. Examples are given of the preparation of 1,1<SP>1</SP>-dimethyl-4,4<SP>1</SP> bipyridylium salts.
Patent GB-1236102-A (GB)
Title: An improved bearing material
Inventor: GARDINER NORMAN ARTHUR
IPC: F16C33/20
Filed: 1968-02-22
Abstract: 1,236,102. Laminates. RAILKO Ltd. 20 March, 1969 [22 Feb., 1968], No. 8612/68. Heading B5N. [Also in Divisions B2 and F2] A composite bearing material comprises a metal backing e.g. steel, aluminium or aluminium alloy or brass, to which is adherently attached a single layer matrix of polymeric plastics material other than a fluorocarbon reinforced with carbon or graphite fibres. The fibres may be dispersed in a resin matrix or be preformed into a woven or felted cloth which is impregnated. The lining may be applied to the backing by epoxy- or polyurethane adhesive and/or heat and pressure after the backing surface has been serrated, knurled, sand blasted or etched. Suitable resins are aminoformaldehyde, epoxies, phenolics, Friedel-Craft resins, unsaturated polyesters, polyimides, polyacetals, polyamides, polycarbonates, polyurethanes, acrylic and linear polyesters. Fillers and friction modifiers may also be included.
Patent GB-687724-A (GB)
Title: Improvements in porous sheet materials
IPC: B07B1/46
Filed: 1950-04-06
Abstract: 687,724. Making porous sheet material. HEAD, M. R. March 22, 1951 [April 6, 1950]. No. 8678/50. Class 83 (ii). [Also in Groups X and XXXIII] Porous sheet material is made by electrodepositing metal on a metallic gauze and then cold rolling the sheet. The material produced is stated to be especially applicable to the surfaces of " suction " aerofoils. The final porosity factor is controlled by controlling both the weight of metal electro-deposited per square inch and the cold rolling process in respect of the reduction at each pass and the number of passes. Two examples are quoted: (a) phosphor-bronze gauze of 120 meshes to the linear inch, plated with nickel to a thickness of 6 oz. per square foot and rolled to 11 thousandths of an inch thickness; (b) phosphor-bronze gauze of 240 meshes to the linear inch, plated with nickel to a thickness of 3¢ oz. per square foot and rolled to 5 thousandths of an inch thickness.
Patent GB-1163715-A (GB)
Title: Bulbholders Incorporating Printed Circuits.
Inventor: BURTON HAROLD WILLIAM
IPC: H01R33/09
Filed: 1966-03-01
Abstract: 1,163,715. Lamp holders. JOSEPH LUCAS (INDUSTRIES) Ltd. 8 Feb., 1967 [1 March, 1966], No. 8842/66. Heading H2E. A lamp holder comprises a panel 11 carrying printed circuitry, and having an upstanding projection 12 which is received in a recess 26 in a lamp-receiving body 23 when mounting the body on the panel. The circuitry may be formed directly on to the panel 11 or, as in Fig. 1, on a flexible layer 28 which rests on the panel 11. The body 23, which is open at its lower end, houses a pair of resilient contacts (24, 25, Fig. 3, not shown) whose opposite ends engage the contacts of a capless lamp (29) and the printed circuitry. Shoulders (13, Fig. 2, not shown) on the projection 12 engage corresponding shoulders in the recess 26, and a fastening clip (18) may be provided, this being retained in a channel (20) in the projection 12 by serrations (19) and having a detent (21) which snap-fits over a shoulder in the recess 26. A viewing lens for the lamp may be located in an aperture 22 in the panel 11.
Patent GB-844500-A (GB)
Title: Method of separating rubber or rubber-like material from metal
Inventor: LAMB LEONARD DOUGLAS
IPC: B29B17/00
Filed: 1958-03-19
Abstract: Rubber or rubber like materials bonded to a metal article are stripped from the metal by chilling the bonded article by means of a liquefied atmospheric gas or a gas at a temperature below -50 DEG C derived from a liquefied atmospheric gas.  Natural rubber, neoprene, polyvinyl chloride, polythene or polytetrafluoroethylene may be stripped from metal in this way and liquid nitrogen may be used as the coolant, the temperature dropping to -196 DEG C.  Before being immersed in the liquefied atmospheric gas the article may first be precooled by the vapour arising from the liquefied gas.
Patent GB-233113-A (GB)
Title: Improved means for securing handles to heavy brushes
IPC: B25G3/38
Filed: 1924-04-08
Abstract: 233,113. Lockwood, L., (Brosscrie Bruxelloise). April 8, 1924. Hinged handles.- Ball and socket devices for securing the handles to weighted brushes and other floor and deck cleaning appliances comprise a socket having a cylindrical recess to receive the ball on the handle and a plurality of claws overhanging the recess and retaining the ball, the claws being spread apart sufficiently to permit movement between them of the plug connecting the ball with the handle so that the lattrer can assume a horizontal position. Secured to the back of the brush is a metal weight in the form of a cover plate, Fig. 2, of the same rectangular dimensions as the brush, the cover plate being formed with an orifice A and radial grooves B inclining downwards thereto. Screw holes Y, Z are provided for securing the cover plate to the brush. The orifice A receives a circular socket, whch has a flange C<1> secured below the cover plate to the brush stock. The socket is provided with four curved claws C forming a housing for the upper part of the ball D carried by a plug E on the end of the handle socket F. A dished seating plate G resting on a rubber block H may be provided under the ball. The claws C, instead of being formed on a separate socket piece, may be formed integrally on the weight or cover plate.
Patent GB-398750-A (GB)
Title: Improvements relating to metallic fencing or railing
IPC: E04H17/14
Filed: 1933-03-24
Abstract: 398,750. Fencing. WORNUM, T. H. and HOLLIES, E. E., Brierley Hill Ironworks, Staffordshire. March 24, 1933, No. 8908. [Class 45.] In a fence wherein cranked verticals b of cylindrical or angle section are received in perforated angle section horizontals c which are secured to the standards, the apex of each horizontal is arranged uppermost and the imperforate web c<1> covers and rests on the upper side of the cranked portions d of the verticals.
Patent GB-514106-A (GB)
Title: Improvements in or relating to muffle furnaces
IPC: F27B5/00
Filed: 1938-03-23
Abstract: 514,106. Furnace atmospheres. GAS LIGHT & COKE CO., LLOYD, P., and VYSE, C. March 23, 1938, No. 8949. [Class 51 (ii)] A neutral or slightly reducing or oxidizing atmosphere gas is supplied to a muffle by means of an aerated gas burner located externally of the muffle and arranged to provide a flame to which secondary air is accessible from the surrounding atmosphere, means being provided for collecting the products of combustion and conducting them to the muffle. In the construction shown a bunsen burner 60 having means for controlling the gas and primary air supplies is vertically adjustable in the bracket 52 and burns beneath the flared lower end 59 of a tube 50 having branches 49 delivering either directly or through perforated pipes to the muffle beneath the work support 29. The tube 50 can be adjusted vertically to vary the amount of secondary air drawn in by the flame by means of cam collar 55 fixed to the tube and a cam track 57 on the bearing 51. The whole of the fittings with the exception of the burner may be covered by the muffle door which may also, have a controlled outlet for the gases. In order to prevent surges of back pressure which may develop in the muffle from affecting the burner the tube connection may include a T-piece one limb of which is open to the atmosphere. A form of muffle is described, Fig. 7, not shown, having an oil bath seal at the discharge end, into the casing of which the atmosphere gas is delivered.
Patent GB-351053-A (GB)
Title: Improvements in and relating to the stropping of razor blades
IPC: B24D15/08
Filed: 1930-03-20
Abstract: A razor strop is impregnated with an abrasive composition consisting of bauxite, 42 grams; raw animal fat, 42 grams; powdered emery, 15 grams; and liquid varnish, 1 gram.
Patent GB-180484-A (GB)
Title: Improvements in expanding joints for lancashire, cornish and like boilers
IPC: F23M5/02
Filed: 1921-03-24
Abstract: 180,484. Whitehead, R. March 24, 1921. Flues, external.-Vertical channel irons a secured to the rear end-plate of a Cornish or like boiler to form a gas-tight joint between the boiler and the walls d of the downtake are formed with flanges or extensions a<1> bearing against the sides of the boiler, and asbestos or like packing is placed between the irons and the walls, and between the irons and the end plate. The irons rest upon rollers i.
Patent GB-1091731-A (GB)
Title: Telephone receiver
IPC: H04M1/03
Filed: 1965-03-03
Abstract: 1,091,731. Substation circuits. DANFOSS A.S. March 3, 1965 [March 3, 1964], No. 9096/65. Heading H4K. Connected in parallel with a telephone receiver 1 (Fig. 2), is a crackling noise protective device consisting of a junctionless, non-rectifying solid state switching device 4, which when the voltage applied to it reaches a threshold value, switches from the high resistance to the low resistance condition and, when the current through it falls below a holding value, reverts to its original condition. In one arrangement the solid state switch 14 (Fig. 3) is connected in parallel with the receiver 11 through a step-up transformer 15. The transformer has windings 16, 17 of ratio 1 : 1. Winding 19 has considerably more turns than winding 16. A resistance 18 is provided. The switch in the high resistance condition exhibits a resistance of the order of megohms and in the low resistance condition a resistance of 1 ohm or less. It may consist of 67À5% tellurium, 25% arsenic and 7À5% germanium.
Patent GB-954073-A (GB)
Title: Improvements in and relating to little thrust bearings for the support of rotor rotating with high speed
IPC: B04B5/08
Filed: 1961-03-13
Abstract: 954,073. Bearings. REACTOR CENTRUM NEDERLAND. March 13, 1961 [March 17, 1960], No. 9126/61: Heading F2A. In a pivot bearing, a vertical shaft has a pintle 7 received by a socket 8 formed in resilient material so that said pintle 7 is retained by said socket 8. The pintle may be parallel, gradually increase in diameter towards the end thereof, or have a globe-shaped end. The socket is cone-shaped and the material may be guajak wood formed so that the fibres are parallel to the axis of the shaft.
Patent GB-454099-A (GB)
Title: Improvements in swivel action brackets
IPC: A47F5/12
Filed: 1935-03-23
Abstract: 454,099. Brackets. WRIGHT, I. B., 100, High Holborn, London. March 23, 1935, No. 9129. (Class 52 (v)] A swivel action bracket comprises a ring 1 secured to a rod 3 by a clamping screw 2 and having a member 4a projecting therefrom and spigotted to a member 5a. The member 5a can then swivel about its axis unless clamped by the screw 11. The free end of the member 5a is provided with jaws in which a plate can be secured by a clamping screw or which have a flat leg 14 pivoted therein. The leg 14 is attached to a plate 17 and a worm 15 cooperates with a toothed wheel or quadrant 16 formed on the end of the leg 14 to provide means for tilting the plate 17.
Patent GB-375396-A (GB)
Title: A process for the preparation of artificial resin compression mixtures
IPC: C08L61/10
Filed: 1931-03-25
Abstract: Artificial resins, solid but in the resol condition, are finely powdered and mixed with finely powdered filling material, and the mixture subjected for a short time to high temperature and pressure so as to cause the resin to fuse and flow in the filler while not advancing it beyond the mouldable state.  The product may be reduced to powder before use.  The treatment may be effected by heat and pressure between two plates, or by extrusion through heated nozzles. The process is applicable particularly to resins of the phenol-formaldehyde type.  The filler may be wood powder, fibrous materials, asbestos, talc, lithopone, magnesia, &c.  Pigments may be included and agents such as stearin for preventing adhesion to moulds.
Patent GB-417064-A (GB)
Title: Improvements in or relating to telephone systems
IPC: H04Q3/00
Filed: 1933-03-27
Abstract: 417,064. Automatic exchange systems. AUTOMATIC ELECTRIC CO., Ltd., Strowger Works, TAYLOR, R., 30, Oulton Road, W avertree, both in Liverpool, and BAKER, G. T., Blackbrook, Caerphilly, Glamorgan. March 27, 1933, No. 9181. [Class 40 (iv).] In a system in which a group of twodirectional finders is associated with a plurality of common control circuits as described in Specification 376,265, each control circuit contains a counting switch co-operating with a common multiple MW and controlling the transmission of the requisite number of impulses to the vertical magnet of the associated finder. When relay LK operates, relay C energizes over both its windings in series with magnet VDM of the counting switch and short-circuits its right-hand winding enabling VDM to operate. Relay VR operates completing a circuit for the finder vertical magnet VM which at its contacts vm transmits an impulse to stepping relay G, the operation of this relay being also dependent on the opening of contacts vdm of magnet VDM. Stepping thus continues until the marked level is reached when relay VT operates and energizes switching relay HA to initiate the rotary movement which takes place as described in Specification 376,265. In the Provisional Specification, Specification 366,143 also is referred to.
Patent GB-528184-A (GB)
Title: Improvements in apparatus for degreasing non-absorbent articles
IPC: C23G5/04
Filed: 1939-03-23
Abstract: 528,184. Dry-cleaning apparatus. GENT, L. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 23, 1939, No. 9232. [Class 91] In degreasing metal or like articles by liquid solvent the articles are placed in an openbottomed container 19 provided with baffles e.g., 11, 12, 13 so disposed as to pass solvent but retain solids sinking in the solvent in which the container is immersed. The container may extend above the solvent level if perforated at or about that level. As shown, the baffles 11-13 are lined with removable gauzes 20, the articles are supported on a grating 15, openings at the solvent level are covered by gauzes 14, and the container is placed in the first cleaning compartment 4 of a tank 1 divided by overflow partitions 18 into cleaning chambers 2-4 and a vaporizing chamber 5 : solvent flows in succession through chambers 2, 3, 4, and 5, chambers 2-5 are fitted with steam coils 6, chambers 3-5 with baffles 17, chambers 2, 3 with gratings 7 to support the articles after cleaning in chamber 4 ; the tank is provided with cooling coils 8, solvent condensing thereon flowing into a trough 9 and by a pipe 10 to the cleaner tank 2. In modifications (1) The gauze linings 20 are replaced by gauze frames sliding in slots in the base of each trough formed by the baffles 11-13. (2) The baffles are formed of sheet metal horizontal members connected by vertical members of gauze. Specification 493,473 is referred to.
Patent GB-351066-A (GB)
Title: Improvements in or relating to stays or struts for hinged lids of gramophones and other cabinets
IPC: E05C17/08
Filed: 1930-03-22
Abstract: 351,066. Automatic stays. LIMIT ENGINEERING CO., Ltd. and COLLINS, A. L., 17, Albion Street, King's Cross, London. March 22, 1930, No. 9237. [Class 65 (i).] A stay, for the lids of gramophone cabinets and the like, comprises an arm 6 pivoted at one end to the lid and carrying at the other end a rotatable catch of parallelogram form for engagement with a member 1 fixed to the cabinet, the pivot pin 5 of the catch being arranged to run in a slot 4 in the member 1. The member 1 is fixed at a short distance from the side of the cabinet, and may be flanged to enclose the space between itself and the side of the cabinet; the catch 7 works in this space. At the end of the opening movement the catch engages a cam 11, fixed to the member 1, and is turned into the position shown in Fig. 2, so that a slight lowering of the lid brings the catch against a projection 12 to hold the lid open. To release the lid it is slightly raised ; this movement brings the catch against a stop 11a and turns it so that it can be further turned when it strikes the projection 12 during the closing movement. Either or both of the parts 12, 11 may be extended to form a guide such as 13, which keeps the longitudinal axis of the catch parallel to the slot during opening and closing. Specification 280,403, [Class 65 (i), Door and gate operating-appliances &c.], is referred to.
Patent GB-386483-A (GB)
Title: Improvements in pipe joints
IPC: F16L17/025
Filed: 1932-03-31
Abstract: 386,483. Pipe &c. joints. BIHET, O., 122, ChaussÚe Wilson, FlÚmalle-Haute, Belgium. March 31, 1932, No. 9242. Convention date, June 11, 1931. [Class 99 (i).] A joint for the connection of underground and other lines of gas, water, air, and supply pipes, and for the connection of pipes to taps, cocks, sluice valves, plug valves, &c., comprises an outer tubular member such as a sleeve U, as shown in the Figure, or a pipe, and an inner tubular member such as B, one of them having an annular recess C containing a flexible rubber &c. packing ring of H-section the H being perpendicular to the axis of the tubular members so that when the inner member is introduced, projecting lips of the packing ring are turned over. The joint permits relative sliding of the parts joined. Cast pipes or rolled steel pipes may be employed, and the groove may be made in a thickened end or formed by welding or otherwise fixing collars to the tubular member.
Patent GB-694532-A (GB)
Title: Improved method of washing sheet material pervious to liquids
IPC: G03D5/06
Filed: 1951-04-20
Abstract: 694,532. Washing photographic material; diazotype printing. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 20, 1951 [April 24, 1950], No. 9263/51. Class 98 (ii). A method of washing a sheet of photographic or other liquid-pervious material is characterized in that the sheet is wetted with a solution of a non-ionogeneous wetting agent containing at least 1 per cent by weight of the wetting agent, and thereafter the washing liquid is caused to flow through the sheet, under action of a pressure difference, in a direction at right-angles to the surface of the sheet. The speed of washing is increased by using the wetting agent, such as that known under the Registered Trade Mark " Lissapol-N " or " Igepal-F," in the concentration specified, and may be further increased by heating the washing liquid. In the example shown, an exposed photographic sheet 1, sensitized with o-hydroxybenzene-diazonium sulphonic acid, mercurous nitrate and nitric acid, is fed at the rate of 1 metre per minute between rollers 2, 3 wetted by developer in containers 4, 5. The developer is made by adding to each litre of 0.3N nitric acid, 0.2 gm. silver nitrate, 10 gm. metol and 60 c.c. of a 30 per cent solution of " Lissapol- N ". The sheet passes through a steam-filled chamber 6 to an endless cotton band 7 driven by a motor 9 over the slightly convex perforated metal top of a hollow box 8. The pressure within box 8 is reduced, so that sheet 1 and band 7 are sucked against the top of the box. Water is sprinkled on the sheet in such quantity that most of it is sucked through the sheet into the box 8, and the sheet leaves the box substantially dry. The water from sprinklers, 10, 11 may be cold, or heated, e.g. to a temperature of 75  C.
Patent GB-888181-A (GB)
Title: Improvements in and relating to the treatment of threads with liquids
Inventor: ETHRINGTON CHARLES GERARD
IPC: D01D10/04
Filed: 1958-03-24
Abstract: <PICT:0888181/IV (a)/1> <PICT:0888181/IV (a)/2> Apparatus for washing threads in cake form comprises an elongated hollow perforated cake support surrounded or substantially surrounded by a double walled inflatable sheath which leaves at least part of the perforations uncovered so that liquid may pass freely between the interior and exterior of the cake support, and means for supplying liquid to the interior of the cake support. As shown in Fig. 1 a cake holder 1 provided with three parallel rows of holes 2 and surrounded by a double walled sheath 3 is used to collect viscose rayon threads. Sheath 3 is flat and rectangular in shape and is provided with tapes 4 secured to the opposite edges of the sheath.  In Fig. 2, the sheath 8 is of cylindrical shape and ports 9 pass through the wall of the sheath. The ports of the sheath are preferably aligned with the perforations of the cake support.  Specifications 349,681, 483,856 and 567,528 are referred to.ALSO:<FORM:0888181/IV (c)/1> <FORM:0888181/IV (c)/2> Apparatus for washing threads in cake form comprises an elongated hollow perforated cake support surrounded or substantially surrounded by a double walled inflatable sheath which leaves at least part of the perforations uncovered so that liquids may pass freely between the interior and exterior of the cake support and means for supplying liquid to the interior of the cake support. As shown in Fig. 1 a cake holder 1 provided with three parallel rows of holes 2 and surrounded by a double walled sheath 3 is used to collect viscose rayon threads.  Sheath 3 is flat and rectangular in shape and is provided with tapes 4 secured to the opposite edges of the sheath.  In Fig. 2, sheath 8 is of cylindrical shape and ports 9 pass through the wall of the sheath. The ports of the sheath are preferably aligned with the perforations of the cake support. Specifications 349,681, 483,856 and 567,528 are referred to.