baber/WOPTO huggingface dataset:
Patent GB-1283588-A (GB)
Title: Process for the recovery of metals and sulphur form metal sulphides
Inventor: O'NEILL CHARLES EDWARD
IPC: C22B15/00
Filed: 1969-08-04
Abstract: 1283588 Recovering sulphur and metal values from sulphides INTERNATIONAL NICKEL CO OF CANADA Ltd 4 Aug 1969 [3 Aug 1968] 38993/69 Heading C1A Cu and/or Ni sulphides substantially free from Fe are slurried with a solution containing at least 2 g./l. of Fe as Fe sulphate and H 2 SO 4  at a temperature of from 80 to 150 C. under a partial pressure of O 2  of at least 2 atmospheres such that the sulphides dissolve as sulphates and elemental sulphur is released. The starting material may be obtained by slurrying a sulphide material containing Cu and Ni and optionally Co and Fe with a solution containing CuSO 4  and H 2 SO 4  at a pH less than 5 and at a temperature of 100-250 C. under autogenous pressures such that the Ni, Co and Fe dissolve as sulphates to leave a residue of Cu sulphide. The CuSO 4 /H 2 SO 4  solution may be part of that obtained by the oxidative leaching. Some Ni may initially be removed as Ni carbonyl by treatment with CO at 5-100 atmospheres and a temperature of from 50-200 C., and Fe may be removed by smelting and oxygen blowing until the Cu : S wt. ratio is at least 3À5 : 1, and the melt is then drastically cooled. Cu may be recovered from the CuSO 4  soln. by electrodeposition (spent electrolyte being used in the oxidative leaching), cementation, or precipitation with alkali or H 2 . The soln. of Co, Ni and Fe sulphates obtained in the first stage leaching may be treated with Ca(OH) 2  or NH 4 OH and O 2  to ppt. Fe(OH) 3 , any Cu may then be removed by electrodeposition or by pptn. with H 2 S or H 2 , Co may be pptd. as Co(OH) 3  (which may be redissolved in HCl and purified by ion-exchange), and the remaining NiSO 4  soln. may be treated with Na 2 CO 3  to ppt. NiCO 3  or with H 2 S to ppt. NiS, which may be calcined to NiO. Precious metals may be recovered from the S ppt. by melting and filtration or by solvent leaching e.g. with perchloroethylene.
Patent GB-1201910-A (GB)
Title: Epoxide polymers
Inventor: SOLDATOS ANTHONY CONSTANTINE
IPC: C08G59/68
Filed: 1967-08-24
Abstract: 1,201,910. Epoxide polymers. UNION CARBIDE CORP. 24 Aug., 1967, No. 39117/67. Heading C3B. Tacky curable polymers are prepared by polymerizing a polyol with bis-(2,3-epoxycyclopentyl) ether in the absence of other compounds or materials capable of reacting with epoxy groups and in the presence of a catalytic amount of a tertiary amine: in which X=0 0 or 1 and R, R<SP>1</SP> and R<SP>2</SP> are the same or different and are hydrogen atoms or monovalent hydrocarbon radicals (e.g. N,N- dimethylbenzylamine). The polyol which may be ethylene glycol or a sucrose based polyol may be used in amounts of at least 0À1 mole (e.g. 0À5-1À5 moles) per mole of bis-(2,3-epoxycyclopentyl) ether. The polymerization may take place at 70-130‹ C. The polymer may be cured using an aromatic amine having at least two primary amino groups per molecule, e.g. m-phenylene diamine.
Patent GB-344959-A (GB)
Title: Improvements in the treatment of bauxite, alunite, and like aluminous material
IPC: C01F7/26
Filed: 1929-12-21
Abstract: Alkali aluminates are obtained by subjecting a mixture of bauxite, alunite, or other aluminiferous material with an alkali acid sulphate, or an alkali sulphate and free sulphuric acid, to the action of a reducing gas such as water gas at an elevated temperature.  1,1-1,5 mols. Na2O may be introduced for each mol. Al2O3.  Sulphur may be recovered from the waste gases.  The mixed initial materials may be formed into briquettes or nodules and be treated in columnar form in counter-current to the reducing gas, for instance in a shaft furnace having an annular flue through which heating gases may be passed.  When the reaction is complete, the product is preferably given a short oxidizing treatment to decompose any sulphides, as by subjecting it in thin layers to a current of air.  After crushing and lixiviation, the aluminate solution may be treated in known ways to obtain alumina, sodium carbonate, &c.
Patent GB-1043758-A (GB)
Title: Improvements in or relating to torsional vibration dampers
Inventor: MAGRUM GERVASE MICHAEL
IPC: F16F15/12
Filed: 1964-09-25
Abstract: 1,043,758. Vibration dampers. HOUDAILLE INDUSTRIES Inc. Sept. 25, 1964, No. 39241/64. Heading F2S. In a vibration damper an inertia mass 12 is connected to a supporting member by a plurality of resiliently flexible cable elements 13. The supporting member 11 is connected as through screws 15 to a shaft 14, e.g. the crankshaft of an internal-combustion engine. The ends of the elements 13 are housed and welded in apertures in the supporting member and the inertia mass. The edges of the apertures from which the elements protrude are chamfered or bell-shaped as at 23, 21. A second inertia mass may be mounted on each element, one on each end with the supporting member clamping the middle portions of the elements (Figs. 5, 6, not shown). The elements may be arranged such that their axes are radially disposed with respect to the supporting member to give a spoke-like display (Figs. 3, 4, not shown). The use of a plurality of rows of elements is disclosed. In a further construction (Fig. 7, not shown), the supporting member 107 is provided with a plurality of studs 112 and the inertia mass 110 is provided with frames 114 on its outer periphery. The frames 114 surround the studs 112 and are filled with cushions 117 of frictionally-engaging strand material 122 packed in a pre-stressed mass. Knitted steel wire is preferred. The cushions are formed in two halves and are retained on the studs 112 by washers 124 spot-welded to shoulders on the studs. The cushions are held in the frames by pins 118. The frames 114 instead of being welded to the inertia member may be formed integral therewith. The feature of using compactly massed filaments as a connecting and damping means may be incorporated in torsional vibrating systems combined with linearly vibrating systems.
Patent GB-857289-A (GB)
Title: Magnetic device for storing and/or propagating information signals
IPC: G11C19/08
Filed: 1957-12-18
Abstract: 857,289. Magnetic storage devices. HUGHES AIRCRAFT CO. Dec. 18, 1957 [Feb. 28, 1957], No. 39379/57. Class 40 (9). [Also in Group XIX] A magnetic device comprises a magnetic medium having an initial magnetization state, information signal input means magnetically coupled to the medium for establishing in a first area a different magnetization state, output means magnetically coupled to the medium at a second area spaced from the first area by a continuous portion of the medium, and additional means magnetically coupled to the medium along the continuous portion for moving the different magnetization state from the first area to the second area. As shown, a shift register, e.g. for a computer, comprises a magnetic medium 10, a pair of looping electrodes 12, 14 of the form shown in Fig. 4 having overlapping portions extending over the effective length of the medium, a pair of zone-establishing electrodes 16, 18 which receive binary coded electrical information from sources 50, 52, Fig. 1, respectively, and an output electrode 20 from which an electrical pulse is obtained when a zone is shifted adjacent thereto. The medium and electrodes may be films deposited by the vacuum evaporation method on insulating material 50, Fig. 3, and supported by a glass substrate 56. The electrodes 12, 14 receive positive and negative current pulses alternately from a drive 24, Fig. 1, via a control network 22 comprising gates coupled to a two-stage clock-pulse controlled binary counter (Fig. 7, not shown); other pulse pattern generating means may be used, e.g. a mechanical rotating field system. The pulse pattern occurring during a four-stage cycle comprising time periods T1-T4, Fig. 5, is as follows:- As illustrated in Fig. 5, the medium 10 is generally magnetized in one direction, and a zone 10a of reverse magnetization is established by electrode 18; this zone together with adjacent zone 10b then represents a binary " I." The electrodes 12, 14 are so constructed, Fig. 4, that in adjacent loop portions current flows in opposite directions. Thus, during time T 2  electrode portions 14d, 14e will produce opposite coercive forces at the boundaries of zone 10a so as to shift the zone one step to the right. During the following time T 3 , current in electrode portions 12e, 12f causes the zone to be shifted a further step, similar stepping occurring during T 4  and T 1 , under control of electrode portion 14e, 14f and 12f, 12g, respectively, and so on. It is stated that the energy required from electrodes 12, 14 for propagating a zone is less than that required from electrode 16 or 18 for initially establishing a zone.
Patent GB-1441405-A (GB)
Title: Musical box movements
IPC: G10F1/06
Filed: 1973-08-22
Abstract: 1441405 Musical box movements LESNEY PRODUCTS & CO Ltd 9 Aug 1974 [22 Aug 1973] 39873/73 Heading G5J The reed comb 2 of a musical box movement is made by chemical machining. A sheet of phosphor bronze, pre-tempered spring or other steel or beryllium copper alloy is photo-etched using carefully aligned negatives of the comb. Holes 16 and slots 17 may be etched at the same time so that the comb may be slid under the lips of pillars 15 until pins 14 engage in holes 16. The comb may alternatively be held in place by a screw or an H-shaped slot engaging a barbed projection on the platform 7, Fig. 3 (not shown). The drum 3 comprises a series of steps, the projections on each step being radially no larger than the preceding step to permit simple injection moulding or die-casting. The drum may be made in three 120 degree segments in a diesplit mould and subsequently secured together.
Patent GB-1476370-A (GB)
Title: Disposable diaper
IPC: A61F13/511
Filed: 1974-09-13
Abstract: 1476370 Diaper PROCTER & GAMBLE CO 13 Sept 1974 [17 Sept 1973] 39931/74 Heading A5R [Also in Divisions B4 and B5] A disposable diaper comprises a waterimpervious backsheet 11a, an absorbent core 13a and a substantially hydrophobic topsheet 15a which comprises an inner layer and an outer layer, the interlayer bonding being weaker than the intralayer bonding, a pair of tape fasteners 17 for securing the diaper, in use, about a wearer's waist and a release liner 19 to which at least one of the tape fasteners is attached and by means of which the topsheet 15a may be delaminated. A blocking sheet 18 is placed between the secured end of the tape fastener 17 and the side flap 12a around the diaper side edges or the tape fastener may have no adhesive in this area. The release liner 19, of paper treated with a silicone compound is adhered, at 20, to the topsheet 15a. Adhesive 20 also attaches a tab 21 to the release liner 19. The topsheet 15a overlies the absorbent core 13a and overlaps the backsheet 11a.
Patent GB-1310986-A (GB)
Title: Method of positioning a dental implant
IPC: A61C8/00
Filed: 1970-08-20
Abstract: 1310986 Method of positioning dental implants A E EDELMAN 20 Aug 1970 [27 Aug 1969] 40115/70 Heading A5R A method of positioning a dental implant 17 in a human mouth, the implant being provided with retaining surfaces 19, comprises inserting into the bone structure of a patient a try-in 11 which is of substantially the same shape as the implant 17 but which is not provided with retaining surfaces, the position of the try-in relative to the jaw bone being used to gauge the position the implant would take up if it were inserted into the opening in the bone structure within which the try-in is located, removing the try-in 11, and inserting the dental implant 17 into the opening vacated by the try-in. The blade 13 of the try-in 11 may be cut and/or bent to conform with the bone structure, and the blade 18 of the implant cut and/or bent accordingly. The try-in is actuated by an impact receiving tooi (16), Figure 1 (not shown), to form a slit (12) in the bone structure and the try-in is inserted and reinserted into the bone structure until it is in the desired orientation with respect to the patients jaw bone. The implant is provided with apertures 19 into which the bone will eventually grow to retain the implant in the slit. An alternative try-in (Figure 7 not shown) is generally cylindrical and is inserted into a cylindrical cavity drilled in the bone structure, the try-in being used to determine the depth of cavity required. The corresponding cylindrical implant (Figure 9 not shown) is provided with retaining surfaces in the form of a screw-threaded portion (38).
Patent GB-1328695-A (GB)
Title: Balance circuit for dc servos
IPC: G05D3/14
Filed: 1970-08-20
Abstract: 1328695 Digital control of position INFORMATION STORAGE SYSTEMS Inc 20 Aug 1970 [20 Aug 1969] 40252/70 Heading G4H [Also in Division H2] A circuit for balancing the effects of offset and drift in components of an amplifier 11 which forms part of a D.C. servo system used, for example, in positioning an array of read/write heads at selected track locations on the discs of a magnetic data storage device, comprises a summing junction 12 which receives tachometer TACH, coarse position CPS, fine position FPS, and temperature compensation signals T 1 , T 2 , an inverter 13 which receives the output of the amplifier 11 or the position signal from the actuator or motor (not shown) supplied by the amplifier, and a summing junction 14 which receives the output of the inverter 13 and the fine position FPS and temperature compensation signals T 1 , T 2 , all of which are combined to form a difference signal which is equal in magnitude to, but opposite in phase with, the aggregate offset and D.C. drift in the amplifier 11, this difference signal being fed back as a balance signal to the junction 12. A gate 16 blocks the amplified difference signal during the coarse positioning step, the signal being fed to a low pass filter 17 and, after storage therein, applied through a buffer amplifier 18 to the junction 12. In this manner, the balance signal is determined during the fine positioning step and applied to the amplifier 11 during both the fine and coarse steps. The fine positioning may be done by a mechanical detent or by a fine position servo as described in Specification 1,294,841. The circuit formed by members 15, 16, 17 and 18 comprises an arrangement of transistors, diodes and resistors, an operational amplifier, a logic unit and a capacitor, Fig. 2 (not shown). Operation is such that the balance signal is always of the same polarity. To prevent damage during start-up of the system, impedances in series with the capacitor are bypassed for a predetermined period during the starting operation to reduce the time constant of the R.C. circuit, the by-pass circuit being a series-connected resistor and transistor controlled by the logic unit.
Patent GB-1532953-A (GB)
Title: Shower cabinets
IPC: A47K3/28
Filed: 1975-09-15
Abstract: 1532953 Shower cabinets P J BAILEY P SCOTT and F P HAYES 15 Sept 1975 [16 Sept 1974] 40252/74 Heading A4N [Also in Division E1] A shower cabinet to accommodate a user in an invalid chair comprises a cabinet body 1a, 1b mounted on a base floor 4 and including a thermostatically controlled shower 14, there being a sump 5 which receives water running off the base floor 4 and a pump 11 for removing water from the sump to a domestic waste system, an electrical control box 8 and probes 6 in the sump 5 operating to control the inflow of water to the shower 14 and the outflow to the pump 11. As shown, the probes 6 are at different levels in the sump 5, a lower probe controlling the pump 11 to operate only when water is present in the sump and a higher probe operating an on-off valve in the shower supply when the level of water in the sump is too high. The cabinet includes a transparent roof (2), a ramp 4a, a sliding door 3 with a window 13, and it may be suitable for connection at the right (as shown) or left side of the cabinet to the water services.
Patent GB-1066464-A (GB)
Title: Connection of a piping to the metal discharge stump of a catch pit gully
IPC: F16L27/10
Filed: 1963-10-04
Abstract: 1,066,464. Pipe couplings. E. S. RAATJES. Oct. 14, 1963 [Oct. 15, 1963], No. 40417/63. Heading F2G. A removable connection between the outlet stump 2 of a catch-pit and a pipe 4a is sealed against egress of gas or liquid by an elastic ring 3 extending radially beyond the stump and fixed permanently to it. The ring engages with a circumferential groove 6a in the conical (Fig. 1) or enlarged cylindrical (Fig. 2) mouth 5a of the pipe 4a. In the cylindrical form shown, more than one groove may be provided. The ring is affixed to the stump by bonding by vulcanization or with an adhesive.
Patent GB-1112451-A (GB)
Title: Connection of structural elements in roofs
IPC: E04B1/58
Filed: 1965-09-22
Abstract: 1,112,451. Roof framework structures. R. J. HALLE. 22 Sept., 1965 [29 Sept., 1964], No. 40502/65. Heading E1W. A roof frame member, such as a rafter 45, and a supporting structure, such as a building framework including a hollow square sectioned column 34, are connected by means 30 comprising a body portion 36 on which is carried a bracket 42 having a sloping upper surface which receives the rafter 45. Brackets 42 may project laterally away from different sides of the body portion 36 to receive roof frame members disposed in various positions in the roof structure. The connecting means 30 sockets into the upper end of a device 31 which serves to connect a beam 33 to the column 34 as described in Specification 910,646. In the exemplified embodiment of Fig. 1, the roof comprises an overhanging part supported by an outrigger 55 which is secured to a sloping plate 56 extending from the connecting means in opposition to the bracket 42. The brackets such as 42 may be of V- or inverted V-shape to receive angle sectioned members extending along roof valleys or ridges.
Patent GB-1400578-A (GB)
Title: Transmission of heating current to a metallic workpiece
IPC: H05H1/00
Filed: 1972-09-01
Abstract: 1400578 Electric couplings BUDAPESTI MUSZAKI EGYETEM 1 Sept 1972 [3 Sept 1971 21 Dec 1971] 40535/72 Heading H2E [Also in Division H5] Electrical contact to a moving wire, tube or the like, to provide current for joule heating of the wire by its internal resistance is provided by an arc plasma at a suitable potential. As shown two plasmas are established between the electrode pairs 1 and 2 respectively and a D.C. generator 5 supplies the potential difference for the joule heating of the moving wire. A single plasma may be used in association with a conventional roller or electrolytic contact. If three plasmas are used the outer two arranged at the same potential and the inner one is at a differing potential. An electrode in the plasma may supply the required potential. If the last contact is a conventional aqueous electrolyte contact it may serve to cool the wire. Alternatively conventional water cooling may be used. Values of power &c. are given. An alkali metal may be added to the plasma for cooling purposes.
Patent GB-1047738-A (GB)
Title: Pneumatic tire construction
IPC: B60C15/06
Filed: 1964-10-06
Abstract: 1,047,738. Pneumatic tyres. GOODYEAR TIRE & RUBBER CO. Oct. 6, 1964 [Nov. 14, 1963], No. 40672/64. Heading B7C. To prevent separation of the carcass cord ends in a pneumatic tyre having a carcass ply of parallel cords each of a total denier greater than 3500 and whose edges are turned around corresponding bead cores, the cord ends are adhesively secured to the side wall and main part of the carcass by a layer of bonding material contacting and impregnated into the cut surface of the ends. To improve bonding, the diameter of the cord ends may be increased as by skiving, crushing to spread apart the cord filaments or, in the case of thermoplastic filaments, by thermally fusing the filaments of each cord. In one embodiment (Fig. 2) the cord ends are wrapped with a vulcanizable elastomeric layer 21. In a second (Fig. 3) they are painted or coated with a layer 31 of adhesive, and in a third (Fig. 5, not shown) a layer 51 of rubber positioned as is layer 31 contains unorientated wire or nylon filaments. Each layer 21, 31 or 51 is impregnated with a powdered resorcinol resin and hexamethylene tetramine to improve adhesion.
Patent GB-895828-A (GB)
Title: Improvements in or relating to methods of producing notched bars
IPC: H01H49/00
Filed: 1960-11-28
Abstract: 895,828. Grinding. TELEFONAKTIEBOLAGET L. M. ERICSSON. Nov. 28, 1960 [Nov. 27, 1959], No. 40874/60. Class 60. Notched bars for relay contact springs are made from paper laminate or similar material by the method of feeding the material 17 to a blanking press 12 having a punch 20 which punches the bars 21 from the material into a guiding groove 18 whence they are fed past one or several ribbed grinding wheels 14. After entering the groove 18 from a die 16, the train of blanks on edge may be brought into contact with an adhesive tape 22 fed from a roll 23, the tape and adhering notched bars being wound on to a roller 24 driven by a motor 25 having its speed compensated to maintain a constant speed of the tape and blanks past the wheel 14 as the roll 24 increases in diameter; resilient tongues 26, Fig. 3, urge the bars against the tape 23. If more than one wheel is used the bars are ground by each wheel in succession. The other edges of the bars may also be notched, if desired.
Patent GB-1103373-A (GB)
Title: Process for the production of organic peroxides
IPC: C07C409/16
Filed: 1964-10-08
Abstract: Organic peroxides having the general formula <FORM:1103373/C2/1> in which Ar represents an aromatic radical, which may be substituted in the reactant alcohol or hydroperoxide with a further group <FORM:1103373/C2/2> and correspondingly in the final product with a further group <FORM:1103373/C2/3> R is an aliphatic hydrocarbon radical, which may be the same or different, and X is an aromatic or aliphatic hydrocarbon radical, are prepared by the reaction of a compound of the formula <FORM:1103373/C2/4> with a compound of the formula <FORM:1103373/C2/5> wherein Ar, X and R are as defined above, Y represents the group -OH or -OOH and Y1 represents the group -OH if Y represents -OOH or vice versa, the reaction being carried out in the presence of perchloric acid and in the presence of more than 0.1% by weight of water in the reaction mixture during at least a part of the period needed for the reaction.  Examples describe the production of alpha, alpha1-bis (tert. butylperoxy)-p-diisopropyl benzene.
Patent GB-1163809-A (GB)
Title: Improvements in or relating to Tool or Instrument Retaining Devices
Inventor: ROGERS STANLEY JAMES BERTRAM
IPC: A47F5/08
Filed: 1967-09-08
Abstract: 1,163,809. Racks; displaying articles. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 8 Sept., 1967, No. 41189/67. Headings A4B and A4T. [Also in Division B8] A tool or instrument retaining means, e.g. for insertion into a tool box or for wall display comprises an apertured member 1 and resilient pegs 3 which are located in the holes to make frictional engagement with the tools etc. The pegs are cranked as shown, with portions 5, 7 ribbed for increased frictional engagement with the holes and tools respectively.