baber/WOPTO huggingface dataset:
Patent GB-1041847-A (GB)
Title: Forming and transporting wire coils
IPC: C21D9/54
Filed: 1963-08-08
Abstract: 1,041,847. Winding and reeling. MORGAN CONSTRUCTION CO. Aug. 8, 1963 [Aug. 9, 1962], No. 31301/63. Heading B3E. [Also in Division B8] A system for cutting into separate coils 17 and transporting continuous rings of wire 11 from a delivery belt conveyer 12 to a rotatable support 37, 38 comprises a rigid tubular track 16 having a plurality of horizontal turns and a longitudinal slot in the top thereof, a track 23 vertically spaced above and parallel to the track 16, on which run wheeled trucks 21 having depending rods 18 which are driven by an endless chain 25 and which pass through the longitudinal slot to support the tubular track 16 by rollers 19 mounted on the lower end of the rods 18, rollingly engaging the inside of the track 16 and flared extrusions 28, 36 at the ends of the slot facilitate the exit and entrance of the rollers 19. A horizontal turnstile 42 at each of the turns 31, 33 of the tubular track 16 has horizontal and vertical rollers on the ends of arms 43 engaging the track 16 intermediate adjacent coils 17 to horizontally stabilize the track. The continuous wire 11 is delivered on to an upwardly extending stem 13 of the tubular track and slides down to rest against a retractable U-shaped stop 10 and after a predetermined size of coil has accumulated a twopronged separator 14 extends into the coil whereupon a shearer mounted on the separator, cuts the wire. The stop 10 is then retracted and the separate coil 17 slides on to the tube proper where a push plate 29 on the front of a rod 18 engages and pushes the coil around the circuit of the tube 16 and on to an inclined bifurcated support arm 37 which is in alignment with a downwardly inclined extension 35 of the tube 16. A second retractable stop 39 prevents coils passing on to the support arm 37 when the latter is fully loaded whereupon the whole support 37, 38 rotates and the coils are removed by a hook carrier.
Patent GB-960699-A (GB)
Title: Improvements relating to the separation of copper from nickel
IPC: C22B15/00
Filed: 1960-09-12
Abstract: Copper is separated from a molten nickel-copper sulphide material by liquid-liquid extraction with a molten mixture of sodium sulphide and sodium chloride, preferably containing 25 to 75% by weight of sodium chloride. The amount of molten salt mixture used is generally from one half to twice the weight of the nickel-copper material, and the sodium chloride may be wholly or partly replaced by one or more of potassium, calcium or aluminium chlorides. In Example 1, 150 g. of a nickel-copper matte containing 68-2% Ni and 3.25% Cu was mixed with 150 g. of sodium sulphide and the mixture melted in a crucible at 845 DEG  C., the upper sodium-rich and the lower nickel-rich fractions being tapped from the bottom of the crucible into separate containers and analysed. In Example 2 a nickel matte containing 3.25% Cu was treated for copper extraction by a multi-stage countercurrent liquid-liquid extraction at 845 DEG  C., the solvent being 50% by weight of sodium sulphide and 50% by weight of sodium chloride. The final copper-rich solvent had a nickel-copper ratio of 0.3 : 1 and the final nickel sulphide had a nickel-copper ratio of 2110 : 1. Example 3 is similar except that the countercurrent extraction was conducted at 760 DEG  C. The counter-current extraction is preferably carried out continuously in a liquid-liquid extraction column which is provided at intervals with solid baffle plates each of which is formed as a tray with a lip and extends part way across the column cross-section. Molten sodium salt solvent is introduced into the lower part of the column, copper-rich solvent is drawn off from the top and nickel-sulphide from which copper has been eliminated is drawn off from the bottom of the column. Specification 960,698 is referred to.
Patent GB-407137-A (GB)
Title: Improvements in or relating to the production of ribbons, straws and like products of cellulose derivatives
Filed: 1932-11-07
Abstract: For the manufacture of delustred artificial straw, ribbons &c from cellulose acetate and other thermoplastic derivatives of cellulose, a number of filaments rendered mutually adhesive by a solvent or softening agent are caused to coalesce by applying heat and pressure, and to either or both faces of the ribbon so formed a further quantity of solvent is applied and the ribbon raised to a temperature substantially above the boiling point of the solvent so as to cause its ebullient evaporation whereby superficial irregularities are produced on the ribbon.  To secure the desired delustring, the straw should be heated to a temperature at least 15 DEG  C. above the boiling of the solvent, for example, to 85--95 DEG  C. when acetone is employed.  The solvent liquid may contain a plasticiser for the cellulose derivative, or a cellulose derivative may be dissolved therein.  The filaments to be coalesced may be of fine or coarse denier, twisted in the form of yarn or untwisted, or associated as braids, tapes, strips or tubes of fabric, or they may be artificial bristles or straw.  If colour or ornamental effects are desired, the filaments may be dyed, or dye may be dissolved in the coalescing liquid, or there may be associated with the filaments other yarns, metal strips, metallized threads; or bronze powder &c. may be incorporated with the filaments to be coalesced.  The delustring treatment may be combined with a further pressing of the straw to a greater width. Two or more pressure rolls may be employed; or the associated filaments or straw may be passed round one of a single pair of rolls and two or more smaller rolls may be caused to bear on such roll.  By using heavy yarns and repeated pressings, films up to 6 in. or more in width may be made.  In a specific modification of the process, coalescing and delustring are carried out simultaneously, 80 per cent of acetone being applied to the filaments which are passed through heated pressure rolls, the lower at a temperature of 85--90 DEG  C.  Specifications 313,451, [Class 2 (ii)], 368,738, and 371,428 are referred to.
Patent GB-1435233-A (GB)
Title: Clutches with a fluid and cam operated pressure modulating valve
IPC: F16D48/02
Filed: 1974-07-17
Abstract: 1435233 Reversing gear control TWIN DISC Inc 17 July 1974 [7 Sept 1973] 31617/74 Heading F2D Hydraulically actuated, modulatable, forward and reverse friction clutches for a marine transmission are selectively engageable by a direction selector valve with which is associated a pressure regulator valve operable either in a first mode providing a controlled rate of pressure rise to effect clutch engagement without shock or in a second mode, referred to as a trolling mode, in which pressure is variable manually to effect controlled slippage of either clutch. The gearing comprises axially aligned input and output shafts with spur wheels in constant mesh with a pair of countershafts each of which has a wheel which can be made fast thereon by a multi-plate clutch to establish forward and reverse drives. As shown schematically in Fig. 15 the direction selector valve DS is manually operable in either sense from a neutral position to direct pressure fluid from a pump 9 either through a conduit 22 to the forward clutch F or through a conduit 44 to the reverse clutch R. When either clutch is selected pressure fluid in the conduit 22 or 44 passes through a ball shuttle valve BSV and combined orifice and check valve 104, OC to a trolling valve which, if manually set for the first mode, directs the fluid to a piston which gradually increases the loading of a spring 64 acting on a pressure regulator valve controlling a bleed from the supply between the pump and the valve DS. Fluid bled by the regulator valve is directed by a spool shuttle valve SSV, positioned by pressure in the conduit 22 or 44, to the selected clutch to lubricate and cool it. If the trolling valve is set for the trolling mode it exhausts the fluid from the orifice and check valve 104, OC, and the pressure delivered to the selected clutch is controlled by an eccentric adjusted manually and acting on the spring 64. In a constructional form of the apparatus the direction selector valve DS is of rotary cylindrical type with an axial boring which receives the closure member of the pressure regulator valve, the trolling valve is also of rotary cylindrical type with an eccentric at one end coacting with an abutment for the loading spring 64 of the regular valve, and the orifice 104 is formed in a spring-loaded disc constituting the check valve OC.
Patent GB-686494-A (GB)
Title: Improvements relating to lifting jacks
IPC: B66F3/08
Filed: 1950-12-29
Abstract: 686,494. Lifting-jacks. AUTO SPECIALTIES MANUFACTURING CO. Dec. 29, 1950. [July 28, 1950] No. 31618/50. Class 78 (iii). In a motor car jack of the kind in which a thin elongated screw carrying a load engaging member is housed within a shallow channel in a strut member, the load engaging member, which extends forwardly of an opening in the strut, has a member extending rearwardly through the opening which is in threaded engagement with the screw and has means engaging with the strut which restrains lateral movement of the screw relatively thereto. The load engaging member 84, Fig. 9, project from one face of a plate 86 which on the opposite face is provided with bosses 92, 94 having threaded apertures 96, 98 to receive the screw 64. The bosses 92, 94 are formed with surfaces 104. 106 which bear against the inner surfaces 16, 18, Fig. 7, of the flanges 12, 14 of the strut 8. In a modification the plate 86, Fig. 10, has notches 108, 110 which are engaged by the slotted ends 114, 116 of a band 112 embracing the strut. The lower end of the screw is positioned by a bracket member 76, Fig. 5, welded to the front wall of the foot 20. The rear wall 24 of the foot is welded to the strut 8, Fig. 2. A bracket 26 is welded to the strut and pivotally supports a pair of parallel members 36 which embrace the tubular -rear leg 42 and rest on a pin 44 mounted therein. The upper end of the leg 42 is pivoted to the hollow cap part 56 of a member 52 which is riveted to the strut and carries a ball-bearing 62 which rotatably supports the upper end of the screw 64. The inner end of the handle 74 is bent to a goose neck 72, Fig. 3. Specification 671,911 is referred to.
Patent GB-1139350-A (GB)
Title: Laminates
IPC: B60C1/00
Filed: 1966-07-15
Abstract: 1,139,350. Laminates. P.P.G. INDUSTRIES Inc. 15 July, 1966 [19 July, 1965], No. 31784/66. Heading B5N. A laminate comprises a plurality of laminµ bonded together with a cured adhesive layer of an interpolymer of a multi-unsaturated hydrocarbon and at least one olefin having a single copolymerizable ethylenic group, the said interpolymer having an essentially saturated carbon chain containing 20% or more of the total carbon atoms in each polymer molecule, being soluble in hydrocarbon solvents and containing prior to curing sufficient ethylenically unsaturated groups to permit curing of a thin film thereof by an oxidative mechanism so that it becomes tack-free and insoluble in hydrocarbon solvents. Preferred bonding agents are copolymers of dicyclopentadiene, bicycloheptadiene and/or vinylcyclohexene-1 with ethylene and/or propylene prepared using Ziegler catalysts. Laminµ bonded include rubber to rubber, especially ethylene-propylene-diene terpolymer rubber to ABS rubber or natural rubber, steel and glass to various rubbers or to paper or plastics, glass to different rubber foams, steel and concrete to cellular glass blocks, steel and polytetrafluoroethylene to polyurethane foam, cotton gauze, paper, asbestos and glass fibre mat and cloth, and various types of steel to themselves. Also a paper honeycomb may be bonded between two steel sheets, or a glass cloth or a foam may be impregnated with the interpolymer and bonded between two steel sheets.
Patent GB-1413368-A (GB)
Title: Memory apparatus
IPC: G11C17/00
Filed: 1973-07-04
Abstract: 1413368 Memory cells WESTERN ELECTRIC CO Inc 4 July 1973 [10 July 1972] 31784/73 Heading H3T A memory apparatus comprises a plurality of cells each including a junction transistor 13 having an uncontacted base whose potential floats at a value representative of information stored, a first circuit 22 for supplying to each cell a first signal including a positive polarity pulse portion and a negative polarity pulse portion, a second circuit 24 for supplying to each cell a second signal having pulse of one polarity, the circuits 22, 24 being effective to write, read and refresh information in the cells. In operation, for writing a "0", the first signal is applied along the word line while the digit line is held at a reference earth potential. The sequence of a positive pulse followed by a negative pulse in the first signal causes the base emitter junction to be initially forwardly biased followed by a decrease in the base potential which is limited by an avalanche break-down. At the end of the negative pulse, the base potential increases in value to a negative level defined as a "0" level. The writing in of a "1" is accomplished by applying the first signal along the word line and by applying a positive pulse signal along the digit line at least during the initial period of the negative portion of the word pulse at the end of which portion, the base potential rises up from an avalanche limit to earth potential defined as the "1" level. For reading out and for refreshing the information stored in the cell, the same first signal used for the write operation is applied to the word line and the digit line is allowed to float and assume a potential corresponding to changes in the word line and base potentials. The detection circuitry 26 includes a voltage measuring device switched to the digit line corresponding to the selected cell during the read-out operation. At the end of a read-out, the word and digit lines assume earth potential and the base potential returns to a level corresponding to a "0" or a "1" originally stored therein.
Patent GB-1534483-A (GB)
Title: Overhead device for propelling a boat
IPC: B63H13/00
Filed: 1977-07-29
Abstract: 1534483 Wind propelling units H ALBA 29 July 1977 [4 Aug 1976] 31923/77 Heading B7V A vessel provided with a windmill-driven propulsion unit is characterized by having a body 18 mounted on a telescopic rod 19 for stabilizing purposes. The vanes 5, 6 and 7 may be variable-pitch.
Patent GB-1506483-A (GB)
Title: Woven commutation matrix
IPC: D03D1/00
Filed: 1975-07-31
Abstract: 1506483 Woven electrical circuits J I DANILIN K A MARINGULOV and E N PAVLOV 31 July 1975 32045/75 Heading D1K A woven electrical circuit has groups of conductive warps and wefts 4, 5 woven to provide contact nodes 1 at which at least some of the conductive threads form floats 3 over the plane of the fabric to provide component connection points. The floats maybe on both sides of the fabric which may have holes 8 at the nodes.
Patent GB-498626-A (GB)
Title: Anodic treatment of magnesium and its alloys
IPC: C25D11/00
Filed: 1937-11-23
Abstract: 498,626. Electrolytic surface treatment of magnesium and its alloys. BUZZARD, R. W. Nov. 23, 1937, No. 32193. Convention date, Nov. 27, 1936. [Class 41] Protective coatings are formed on magnesium and magnesium alloys by anodic treatment in a solution containing one or more oxidizing agents or ions derived from water-soluble compounds of the group consisting of chromates, dichromates, oxalic acid, acetic acid, nitrates, permanganates and chlorates in presence of one or more water-soluble salts of the group consisting of sulphates, fluorides, phosphates, borates and molybdates, the pH being on the acid side. The salts used are preferably those of sodium, potassium and ammonium. The above-mentioned constituents may be present in concentrations of 1 per cent up to saturation point, the temperature may range from 20- 80 C. and the current density from 1-100 amps. per sq. ft. The pH is preferably between 2 and 5. Chromate or dichromate may be used in conjunction with manganese sulphate, chromium sulphate or monosodium phosphate.
Patent GB-427655-A (GB)
Title: Improvements in and relating to plaster bases or lathing for ceilings, walls and thelike
IPC: E04F13/04
Filed: 1933-11-20
Abstract: 427,655. Lathing. CARPENTER, G., 22, Ditton Road, Surbiton, Surrey. Nov. 20, 1933, No. 32252. [Class 20 (iv)] Relates to a lathing comprising a sheet a of fibrous material with stiffening members d threaded through rows of slits b provided in the sheet. According to the invention, the sheet is flexible and, prior to the introduction of the stiffeners d, is of substantially flat form, and the slits b in each row of the sheet are arranged parallel and are adapted to receive a stiffener d, which is threaded over and under the sheet to form a basket weave. The sheet a may be of paper, and may be impregnated with cement, plaster, bitumen, &c., which is coated with sand, crushed brick, &c. The stiffeners d, Fig. 1, may be of wood or pressed fibre, or they may be of metal strips as shown in Fig. 3. The lathing is applied to the joists or studs with the stiffening members extending transversely of, and secured to, the latter members. The sheet a may be provided with additional slits c to provide a further bond with the plaster. The sheet a may be backed by a sheet k, preferably of unperforated and waterproof form, which is secured by plaster, cement &c., l to the sheet a, as shown in Fig. 4. The stiffeners d may project beyond the edge of the sheet at the joints so as to overlap the adjacent sheet. Adjacent sheets may be connected together by clips. The Provisional Specification describes also the sheet a as of felt or asbestos.
Patent GB-949635-A (GB)
Title: Manufacture of condensation polymers
Inventor: KOEBNER ADOLF
IPC: C10L7/02
Filed: 1961-09-08
Abstract: Compositions of resins derived from formaldehyde and at least one compound capable of reacting therewith to form a resin, are made by (1) preparing separately two oil-in-water emulsions of a water-immiscible organic liquid, at least one of which contains a catalyst and one of which contains formaldehyde with or without a formaldehyde-reactive compound, (free or as a liquid pre-condensate with formaldehyde), and the other contains a formaldehyde-reactive compound with or without a proportion of formaldehyde (free or as a liquid pre-condensate with the said compound), the total proportions of reactants in each emulsion separately being such that they are stable in the presence of any of the catalyst contained therein but that they form a solid resin when the emulsions are brought together, and (2) mixing the two emulsions to form a solid resin containing the liquid dispersed therein.  Preferably one of the emulsions is made with an excess of formaldehyde and a deficiency of the other reactant in the form of a liquid pre-condensate, the other emulsion consisting essentially of the other reactant and a little pre-condensate. The pre-condensate can be made, e.g. by heating urea and paraformaldehyde at 100 DEG C. until complete homogenisation occurs. Other reactants mentioned are melamine, phenol, resorcinol and xylenol.  An acid catalyst may be added, and casein may be added to one or both of the emulsions to strengthen the final polymer. The immiscible liquid may be a liquid fuel, e.g. kerosene, or a low-boiling (i.e. 10 DEG  to 60 DEG C.) liquid, e.g. pentane or a fluorinated aliphatic hydrocarbon, and when a polymer containing such a low-boiling liquid is heated dielectrically or by hot water or steam, the liquid volatilises to form an expanded polymer.  In the example, a mixture of a urea-formaldehyde pre-condensate (mol. ratio 1:4), water, H2SO4 and an emulsifying agent was mixed with kerosene with rapid stirring to form an emulsion; a neutral emulsion was then made by mixing urea, water, an emulsifying agent, casein, a little of the precondensate and kerosene; the two emulsions were then rapidly mixed together and the mixture extruded into a mould, allowed to set and, after removal from the mould, allowed to harden in air.  The resulting composition, in the form of a cast block, was suitable for use as a domestic firelighter (see Division C5).  Specification 589,594 is referred to.ALSO:In the example, a domestic firelighter in the form of a cast block of a urea-formaldehyde resin containing kerosene dispersed therein (see Division C3), is made by (1) forming an emulsion of a urea-formaldehyde pre-condensate (mol. ratio 1 : 4), water, sulphuric acid, an emulsifying agent and kerosene; (2) forming a neutral emulsion of urea, water, an emulsifying agent, kerosene, a little of the precondensate and casein; (3) repidly mixing the two emulsions together; and (4) extruding the mixture into a mould and allowing the mixture to set and, after removal from the mould, harden in air. Specification 589,594 is referred to.
Patent GB-365219-A (GB)
Title: Improvements in screw-thread cutting tools
IPC: B23G5/06
Filed: 1930-10-28
Abstract: 365,219. Screwing-dies; taps. CUNNINGHAM, A. D., 19, Rutland Street, Kogarah, New South Wales, Australia. Oct. 28, 1930, No. 32316. [Class 83 (iii).] A screw-cutting tool has finishing teeth 15 of uniform size and spacing, and cutting teeth 10 of diminishing depth towards the starting end, the cutting teeth having substantially flat crest portions 10b with single or double chamfers 11. The chamfers are formed by sloping the crests 10b inwardly towards the leading and rear flanks 10a, a double chamfer being shown in Fig. 2 and a single chamfer in Fig. 4. The chamfers extend to the root line 12 of the teeth at the starting end of the tool and diminish progressively in depth along the line 14 to vanish before the first finishing tooth 15. The chamfers follow the eccentric curve 16, Fig. 4, of the teeth and may be formed on each tooth of a land or on alternate teeth only.
Patent GB-200998-A (GB)
Title: Process and apparatus for the concentration or drying of solutions suspensions and colloidal dispersions
IPC: B01D1/16
Filed: 1922-02-02
Abstract: 200,998. Plauson's (Parent Co.), Ltd., (Plauson, H.). Feb. 2, 1922. Spray and film evaporators. - In concentrating solutions or colloidal dispersions or drying suspensions of kaolin, mineral colours, coal, peat, graphite &c., the liquid is distributed as a fine spray or film in a current of gas or steam moving at a high velocity (50 metres per sec. and upwards). T h e stream is obtained by allowing the gas to expand through funnel-shaped nozzles which may be arranged to give a rotary movement to the gas. The liquid may be supplied by a distributor 9 on to the upper surface of a packing 7 of Raschig rings &c. in a vessel 6 through which a stream of gas or steam from a nozzle 3 rises. Concentrated liquid carried by the gas is separated in a baffled chamber 12 and flows into a container 15a. The bulk of the concentrated liquid passes from the base of the vessel 6 into a container 14. The liquid to be concentrated may be supplied by atomizing it by means of air or gas, downwards into the lower part of the vessel 6 below the packing 7. The liquid may be supplied to a rotating device from which it is discharged as a thin vertical film into a stream of gas or steam moving horizontally. Solid or liquid products are separated from the gas by passage through a series of baffles or sieves, the different products from which are collected in separate containers. Materials having a dehydrating, ionizing or deionizing effect may be added to the gas, for example, in concentrating calcium chloride solution, a small addition of hydrochloric acid gas may be made, and in concentrating sugar solutions, additions of carbondioxide or alcohol increase the rate of concentration, while strong acids decrease the rate.