baber/WOPTO huggingface dataset:
Patent GB-1162133-A (GB)
Title: Improvements relating to the manufacture of Loudspeakers
Inventor: WARD DENNIS CHARLES
IPC: H04R9/04
Filed: 1965-09-11
Abstract: 1,162,133. Loud-speakers. ELECTRIC & MUSICAL INDUSTRIES Ltd. 12 Sept., 1966 [11 Sept., 1965], No. 38872/65. Heading H4J. The cone 8 and spider 7 of a moving coil loudspeaker are attached to the coil former 3 by thermoplastic resin 6 which is initially caused by applied heat to flow, and is subsequently caused by removal of the applied heat to harden so as to form stable joints between the former 3, and the cone 8 and the spider 7. As shown, the former 3 (Fig. 1) is maintained in a central position with respect to the gap between magnetic poles 1 and 2 by a removable centring plug 5. Previously, the former 3 has been fitted on to an internal mandrel and dipped into heated thermoplastic synthetic resin. The spider 7 and cone 8 are fitted to the loud-speaker chassis prior to insertion of the speech coil 4 on the former 3. The plug includes facilities for heating the resin 6 and, on cooling, the spider 7 and cone 8 become secured by resin 6 to the former 3. The plug 5 is then removed. The resin 6 projects slightly beyond the end of the former 3 which enables a dust cover 9 to be attached by a heated tool. Alternatively, rings 10, 11 (Fig. 2) of thermoplastic resin are fitted round the former 3 to rest against the cone 8 and spider 7 respectively. Whilst the former 3 is maintained central the rings 10,11 are melted by heating a central plug, or by hot air directed to the rings 10, 11. Subsequently, a dust cap is fitted.
Patent GB-372286-A (GB)
Title: Improved means for regulating the flow of fluid through a pipe
IPC: G05D7/01
Filed: 1930-12-30
Abstract: 372,286. Regulating fluid flow. SOC. ANON. DISTRIBUZIONE LAZZARETTO and POTABILI, R. A., 17, Via Lazzaretto, both in Milan, Italy.-(Assignees of Adorni, U. ; 17, Via Lazzaretto, Milan, Italy.) Dec. 30, 1930, No. 39228. Convention date, Dec. 30, 1929. [Class 135.] A device for equalizing the flow through pipes conveying liquid comprises a resilient member enclosed in the pipe and subject to pressure on its end and peripheral surfaces. In the form shown in the Figure the resilient member 3 is housed in a twopart casing 1, 2 and has a central hole 9, such that the surfaces of the bore 9 together with the end surfaces have less area than the exterior cylindrical surface. In a modification a solid or annular resilient member co-operates with a ring of ports in a surrounding cylinder.
Patent GB-1056617-A (GB)
Title: Improvements in composite refractory bricks and their manufacture
Inventor: EICHLER BERTHOLD
IPC: B28B1/00
Filed: 1964-09-26
Abstract: Composite refractory bricks are composed of at least two different but intimately intermixed materials the proportions of which change progressively from a maximum of one at one position in the length (or other dimension) of the brick to a maximum of the other at another position in the length of the brick.  The progressive change in proportions may be uniform or variable over the length of the change. The transition may be from 100% of one material to 100% of the other, or may be from less than 100% in each case.  The point at which transition starts may be at the end of the brick or may be spaced from the end.  These and other variations are illustrated with drawings and graphs (including some in which 3 different materials are used), and methods and apparatus for making the bricks are described.  Examples describe: (1) and (2) bricks made from (a) a refractory part comprising aluminous grog and aluminous clay, and (b) an insulating part made from porous aluminous grog and clay; (3) a zircon-silica brick; (4) an alumina-firebrick brick; (5) as for (4) but with a clay-containing firebrick part and an extra insulating batch comprising porous aluminous grog and clay; and (6) a magnesite/chrome-chrome/magnesite brick.
Patent GB-1057427-A (GB)
Title: A new, highly-fluorinated monomer and its polymers and co-polymers
IPC: C07C23/08
Filed: 1964-09-28
Abstract: The invention comprises the compound <FORM:1057427/C2/1> [1-vinyl perfluorocyclopentene-(1).  It may be prepared by dehydrofluorinating <FORM:1057427/C2/2> by means of anhydrous lithium hydroxide in mineral oil.  The starting material may be prepared by dehydration of <FORM:1057427/C2/3> by treating it with phosphorus pentoxide, the hydroxy compound being prepared by heating perfluorocyclopentene with ethyl alcohol in the presence of ditertiary butyl peroxide.ALSO:The novel compound <FORM:1057427/C3/1> [1-vinylperfluorocyclopentene - (1)] may be used for the production of monopolymers or copolymers with compounds of formula (a) <FORM:1057427/C3/2> in which X is fluorine or hydrogen, at least one X being hydrogen, E is fluorine or a CF3 group and R is hydrogen, fluorine or perfluoroalkyl, the number of X's being hydrogen exceeding the number of R's that are hydrogen; (b) CX2 = CQ-CN in which X is as in (a) and each Q is hydrogen, fluorine or CH3, at least one of X or Q being hydrogen; (c) CZ2 = CXCX = CZ2 in which each Z is trifluoromethyl, fluorine or hydrogen and X is as in (a); and (d) <FORM:1057427/C3/3> in which m is 1 or 2, Y is hydrogen or CH3 and Z is as defined above.  The polymerization may be effected by using a redox initiator.
Patent GB-1368251-A (GB)
Title: Theophylinylmethylethanoic acid ester
IPC: C07D473/08
Filed: 1971-08-23
Abstract: 1368251 Theophyllinyl-ethanoic acid ester SO CI BRE 23 Aug 1971 [25 Aug 1970] 39426/71 Heading C2C The novel compound I and its acid addition salts are prepared by reacting pyridine-3-methanol with a compound II or a functional derivative thereof and optionally forming a salt.  Theophyllinyl-7-ethanoic acid is prepared by reacting theophylline with 2-chloro-propionio acid ethyl ester, followed by hydrolysis. Pharmaceutical compositions having cerebral vaso-dilator activity comprise a compound I together with a suitable excipient for oral administration.
Patent GB-1154364-A (GB)
Title: Improvements in or relating to Electrical Contact Elements
Inventor: OXLEY ROBERT FREDERICK
IPC: H01R12/72
Filed: 1965-09-16
Abstract: 1,154,364. Two-part couplings. R. F. OXLEY. 15 Sept., 1966 [16 Sept., 1965], No. 39505/65. Heading H2E. A socket contact comprises a metal strip or wire folded, as in Fig. 8, to form an upper U- shaped jaw 112 and a lower U-shaped jaw 114, between which jaws is received a flat contact, as of a printed circuit board, or a cylindrical contact. In a modification (Figs. 1-3, not shown) two such pairs of jaws (12, 14 and 12, 14) are formed in a central portion of the wire, the remainder (10) of which is folded back on itself. A single length or loop of wire may be folded into several such sockets, e.g. for interconnecting spaced printed circuit boards (Fig. 5, not shown) or for linking spaced printed conductors on a single board (Fig. 6, not shown).
Patent GB-1124283-A (GB)
Title: Improvements in or relating to a contact wheel
Inventor: JOHNSON PAUL ANTONY
IPC: B24B21/14
Filed: 1964-09-29
Abstract: 1,124,283. Grinding. FLEXWHEEL Ltd. 27 Aug., 1965 [29 Sept., 1964], No. 39535/64. Heading B3D. [Also in Division F2] A contact wheel for supporting an abrading belt has a radially pleated tyre composed of four annular axially spaced layers 10a, 10b, 11a and 11b formed from two resilient sheets 10, 11 gripped between axially extending intercalated teeth 14 of two hub discs 13, 12. The resilient sheets 10, 11 may be of a natural or synthetic elastomer impregnated or covered with a fluid impermeable natural or synthetic elastomer, or of woven nylon fabric impregnated with neoprene. The sheets 10, 11 are initially wound as a cylinder and a wire passed circumferentially therearound and tightened to decrease the diameter at mid-length of the cylinder, to form a U-cross-section annular tyre, with the four layers 10a, 10b, 11a and 11b. The hub disc 13 has tubular extensions 16 passing through and peened over to grip the disc 12 and several wheels may be arranged on a single spindle with the tubular extensions 16 aiding cooling.
Patent GB-866006-A (GB)
Title: Improvements in or relating to devices for laterally displacing crop lying on the ground
IPC: A01D78/00
Filed: 1957-07-11
Abstract: The subject-matter of this Specification is the same as that of Specification 866,005 but the claims differ.  Specifications 866,007 and 866,008 also are referred to.
Patent GB-1497441-A (GB)
Title: Appliance to help men suffering from sexual impotence
IPC: A61F5/41
Filed: 1976-08-04
Abstract: 1497441 Pneumatic apparatus for curing male impotence J S T ISBISTER 4 Aug 1976 [27 Sept 1975] 39677/75 Heading A5R Apparatus for curing male impotence comprises an inflatable double-walled cuff B, a suction cylinder C connectible to the cuff, a vacuum, pump D and piping connecting the pump to the cylinder and to the space between the cuff walls.  During use, the cuff is positioned around the base of the penis, a tap 9 is opened to the atmosphere and pump D is operated to reduce the pressure within cylinder C and the interior of cuff B whereby an erection is obtained. The tap 9 is then turned to connect the pump with line 8 whereby the subsequent pressurization of the space between cuff walls 4, 5 compresses the penis base and maintains the erection after disconnection of the cylinder and pump from the cuff. The cuff is provided with one-way and pressure relief valves 2, 3, straps 1 for connection to an abdominal belt. Expansion of the cuff takes place largely inwardly.  The cylinder has a vacuum relief valve 7 and the pump may be an electric diaphragm type rather than as shown. Lubrication may be applied to the cuff and cylinder connection and the cuff interior.
Patent GB-1530740-A (GB)
Title: Process for the preparation of iron oxide based thermostable pigments from acid solutions containing ferrous sulphate
IPC: C01G49/02
Filed: 1976-09-27
Abstract: 1530740 Thermostable pigments containing iron oxide MONTEDISON SpA 27 Sept 1976 [29 Sept 1975] 39930/76 Heading C4A A thermostable pigment containing iron oxide and which contains one or more modifying elements imparting to the pigment colour varying from red, through brown to black, is prepared by (i) dissolving one or more compounds of the modifying element or elements, in the quantity required for conferring to the pigment the desired colour, in an acid solution containing ferrous sulphate, (2) separating an homogenous mixture of ferrous sulphate and sulphates of the modifying elements from the solution by crystallization or evaporation to dryness, and (3) calcining the separated homogeneous mixture at 700 to 1000‹ C.
Patent GB-1105254-A (GB)
Title: Method for producing hermetic glass to metal seals and articles produced thereby
IPC: C03C27/02
Filed: 1965-09-20
Abstract: A method for producing a hermetic glass-to-metal seal comprises grinding a glass to an ultrafine particle size, the glass having substantially the same thermal expansion characteristics as the metal to which it will be sealed, mixing the ultrafine glass with a binder to form large aggregates, pressing the aggregates and the metal to form a compact of the desired shape and heating the compact to a temperature wherein the binder is burnt out and then to above the softening of the glass for a time sufficient to form a hermetic seal. The glass is ground to a particle size such that 100% will pass a 200 U.S.A. mesh screen, 98.9% a 300 U.S.A. mesh screen and 96% a 325 U.S.A. mesh screen.  In forming an article, such as a casing for miniaturized electrical components, the glass is ground up to the above size and then mixed with an organic binder to form large aggregates (e.g. between 35 and 200 U.S.A. mesh).  This mixture is then added to a nickel-iron-cobalt alloy grid in a cavity and the whole subjected to a pressure of 1500 to 3500 p.s.i. to form a compact.  The compact is then heated to a temperature of from 350-400 DEG  C. to burn out the binder and then to from 700 DEG  to 800 DEG C., which is above the glass softening point, preferably in an inert atmosphere of nitrogen.  The compact was then annealed.  The glass preferably falls within the composition range described in Specification 584,527, SiO2 60-75% by wt., B2O3 10-20%, Al2O3 5-10%, K2O not more than 5%, LiO2 not more than 2%, Na2O not more than 3% and not more than 10-15% of other ingredients such as BaO, CaF2.
Patent GB-872015-A (GB)
Title: Improvements in flushing apparatus
IPC: E03D1/04
Filed: 1958-12-11
Abstract: 872,015. Siphon-discharge water-waste-preventers ; tank inlet fittings. SEARL, W. H. Dec. 9, 1959 [Dec. 11, 1958], No. 40038/58. Class 26. Flushing apparatus comprises a cistern 1, accommodating a float 17 and a vertical movable tube 8, normally occupying a raised position and depressable axially by manuallyoperable means 23 together with the float 17 to effect a flush, enclosed by a bell 13 open at its base, and having an inlet at its upper end above the level of the watery its lower end being guided in an open tube 9 carried by the base of the cistern, the tube 8 being formed below or predominantly below the normal water level with a restriction in diameter 20 to initiate flushing on depression, through the top of the tube 8, which carries as an upward extension a valve member 6 normally seating within an inlet port of the water supply pipe 3 normally to close it, Fig. 1. The cistern 1 has a lid 2, a valve body 4 depending from the pipe 3 and having a truncated conical recess 4c for the valve member 6, spring means yieldingly opposing the depression of the tube 8, which with the bell 13 forms a space leading to the cistern at the bottom thereof, of decreasing cross-section upwards. A truncated hollow conical rubber seating 5 may be fitted in the inlet recess 4c which the valve member 6 normally closes through the buoyant action of the water on the float. The spring means may comprise a helical spring around the tube 8 and within a sleeve 19 between a flange 8b on the tube 8 and a plate 10 on the cistern base integral with a boss 10a threaded on the outlet tube 9. The bell 13 has spaced depending feet to allow ingress of water and has a guide 14 for a rod 7. Upstanding from the tube 8, provided with sealing means, and attached to the valve member 6, arms 15 radiating from the rod 7 and bent downwardly as at 15a to carry the float 17. Between the valve seating and the water inlet overflow-preventing means may be included which when flushing is completed forms a seal against further ingress of water into the cistern until the float is returned upwards (after initial spring action) to a position slightly in advance of that it would occupy when the valve is closed. Said means includes a valve body 4 which is modified to be threaded on to a boss extending from the supply pipe 3.
Patent GB-1277042-A (GB)
Title: Improvements in and relating to aircraft
Inventor: KLING ALBERTO
IPC: B64C27/20
Filed: 1969-08-12
Abstract: 1277042 Aircraft A KLING 12 Aug 1969 [25 Feb 1969 28 July 1969] Headings B7G and B7W An aircraft comprises a stable cabin 8 carried within a rotating and inclinable outer shell 1 by means of gimbal rings 4, 6 and mutually perpendicular pivots 3, 5, 7, lift being provided by aerofoils 2 mounted on shell 1 and connected at their tips by a ring 2<SP>1</SP>. The shell 1, aerofoils 2 and ring 2<SP>1</SP> are rotated by jet propulsion units 9 mounted on the aerofoils, though in an alternative embodiment (Fig. 8, not shown) a gas generator is mounted on top of shell 1 which is formed on its upper hemisphere with a spaced outer shell to form a duct for transmission of gas from the generator through the interiors of the aerofoils to trailing edge propulsion nozzles. Some or all of aerofoils 2 may hang downwardly (Fig. 2), ring 2<SP>1</SP> being flexible for this purpose, and be brought into an operative position by centrifugal force. The craft is supported on the ground by an inverted-cup undercarriage unit 30 provided with shock absorbing mechanism, and after vertical take off the shell 1 and aerofoils 2 are inclined to provide a translational thrust for the craft by means of a hollow circular tube attached to ring 4 and containing a pair of equal weights movable under the influence of a solenoid (Fig. 9, not shown) to exert a force on the system which acts as a gyroscope; the shell is thus caused to precess, so that its rotational axis becomes inclined at an angle to the vertical, whereupon the craft will fly in the direction indicated in Fig. 1 (not shown). A motor generator means 19 (and Fig. 5, not shown), coaxially mounted with the craft's rotational axis, is employed to turn the otherwise stationary cabin 8 to face the direction of flight. To prevent the cabin 8 rotating with shell 1, the undercarriage 30, which is rotatably mounted in shell 1 by bearings (Fig. 6,notshown) and attached to ring 4, carries vanes 31 acted upon by the slipstream from aerofoils 2. In an alternative arrangement, Fig. 3, the shell is formed in its upper part with air inlet holes 32 and at its lower part with air outlet holes 32 on a larger pitch circle than the upper holes, so that air is drawn through the shell over vanes 33 mounted on the ring 4.
Patent GB-1367483-A (GB)
Title: Crop-engaging tooth assembly
IPC: A01D80/02
Filed: 1971-08-27
Abstract: 1367483 Attaching tines INTERNATIONAL HARVESTER CO 27 Aug 1971 [31 Aug 1970] 40294/71 Heading B3A [Also in Division A1] A crop-engaging tooth 2 is attached to rake bar 47 by means of a clip 3, several of which may be formed from a blank 25, Fig. 6. A bolt 44 fits the hole 52, and also passes through holes 45 and 46 in the bar, being secured by the nut 42. The end 43 of the bolt is not attached to the clip, but lies in the recess between the clip's ears. This leaves this side of the clip free to be deformed into position. The block 32 may be of elastomeric material, e.g. vulcanized rubber, and supports a rake tooth 35. The upper surface of the block is moulded on to the clip 3, with the help of hole 77.
Patent GB-966206-A (GB)
Title: Improvements in or relating to anti-implosion devices for cathode ray tubes
IPC: H01J29/87
Filed: 1962-10-26
Abstract: 966,206. Anti-implosion arrangements. COMPAGNIE INDUSTRIELLE FRANCAIS DES TUBES ELECTRONIQUES. Oct. 26, 1962 [Nov. 10, 1961; Dec. 29, 1961(2)], No. 40654/62. Heading H1D. An anti-implosion device for a cathode-ray tube 1 comprises a layer of refractory material 2 such as a conglomerate of asbestos fibres or mica with a volatile binder of asbestos cloth, compressed by a metal band cast on. In an alternative arrangement (Fig. 3, not shown) the band may be in sections compressed by external means and which are then bolted or riveted together. The band may be ribbed or formed into a grid as shown.
Patent GB-942024-A (GB)
Title: Process for producing pure, straight chain paraffins from high boiling mineral oil fractions
IPC: C10G73/24
Filed: 1961-11-15
Abstract: Pure straight-chain paraffins are obtained from high boiling mineral oil fractions by treating the fractions with a molecular sieve of pore size about 5 <\>rA. at a temperature between 150 DEG  and 350 DEG  C., the laden sieve being washed at substantially the same temperature with a nonadsorbed solvent boiling below the boiling point of the raffinate, and the adsorbed straight chain paraffins being eluted at substantially the same temperature, while maintaining the liquid phase, by an excess of a low boiling straightchain paraffin hydrocarbon.  The washing step may be effected with a cyclic hydrocarbon, a branched chain saturated or unsaturated hydrocarbon, or a substituted hydrocarbon. The mineral oil fraction may be diluted with an inert diluent, for example a raffinate from a previous adsorption or with the agent intended to be used for the washing step.  Desirably the process is carried out under substantially anhydrous conditions.  The eluted paraffin may be subjected to further refining, for example treatments with sulphuric acid, with or without phosphorous acid, or oleum, or hydrogenation, for example, at 280-320 DEG  C., and 200-400 atmos. in vapour phase over sulphur stable catalysts of Group VI or VIII, e.g. sulphides of cobalt, nickel, tungsten, molybdenum, or mixtures, for example on an active carrier such as fuller's earth.
Patent GB-1101857-A (GB)
Title: Interference suppression choke
IPC: H01F37/00
Filed: 1965-09-28
Abstract: 1,101,857. Inductor. BLACK & DECKER Ltd., and P. W. KING. 28 Sept., 1966 [28 Sept., 1965], No. 41153/65. Heading HIT. Two leads are wound similarly on a limb 5 of a ferrite core, and are connected to singlephase A.C. motor 3 in such a way that the operating current I 1 , I 2  passes through the coils so formed in opposite directions, with opposing flux effects # 1 , # 2  and has little reactance presented to it. An interference current from motor 3, however, will pass through both coils in the same direction, with additive flux effects, and will meet with a high reactance and be attenuated. Double coils of this kind may be wound on two limbs of a core, and be connected as shown for an additive effect. Suppressors of similar construction may be used with D.C. and polyphase motors.
Patent GB-914166-A (GB)
Title: Improvements in spring suspensions
Inventor: MOULTON ALEXANDER ERIC
IPC: B60G15/06
Filed: 1958-12-23
Abstract: 914,166. Road vehicle spring suspensions. MOULTON DEVELOPMENTS Ltd. Nov. 17, 1959 [Dec. 23, 1958]. No. 41520/58. Class 108(2). A road vehicle suspension comprises a rubber sandwich spring a rigid member 2 of which is rigidly located relatively to a bearing 15 for a road wheel suspension arm 12 by sheet metal 16 in tension, the other rigid member 3 of the spring being connected by a strut 20 with the arm 12 at a joint 21. The position of the latter gives the spring a leverage of between 4 and 6 to I. The arm 12 is a transversely disposed upper wishbone link. In a modification (Figs. 4 and 5, not shown) the arm 12 may be in the form of a single arm disposed longitudinally. Specification 793,772 is referred to in the Provisional Specification. In an alternative form of the invention described in the Provisional Specification, the strut 20 is replaced by a telescopic hydraulic damper. Specification 763,432 also is referred to.
Patent GB-997581-A (GB)
Title: Digital communication system
IPC: H04L25/49
Filed: 1963-10-22
Abstract: 997,581. Telegraphy. CONTROL DATA CORPORATION. Oct. 22, 1963 [Oct. 29, 1962], No. 41580/63. Heading H4P. In a data transmission system, at the transmitter binary data in non-return-to-zero form is converted prior to transmission to double-pulse form. At the receiver the doublepulses are converted to returnto-zero form, the receiver using the direction of the mid-point transition to determine the significance of each double-pulse bit. NRZ to double-pulse conversion.-A source of NRZ pulses, e.g. 1101, feeds toggle 20, Fig. 3, via gates 12, 13 as Fig. 4A and inverter 1-11 as Fig. 4B. Clock pulses, Fig. 4D, feed gates 12, 13 and, via a ¢-bit delay, gates 14, 15 which are also fed with signals B, A. Toggle 20 provides complementary outputs E, F, which are in double pulse form, to the transmission medium. Double - pulse to RZ conversion,.-From the received signal are derived signals identical to the outputs E, F of the toggle 20 at the transmitter. These signals are at 361, 37<SP>1</SP>, Figs. 5 and 7. As shown, the receiver comprises a plurality of inverters 3, gates, and toggles. The One detector and Zero detector toggles separately indicate the " 1 " and " 0 " bits in return-to-zero form on lines 51<SP>1</SP>, 57<SP>1</SP>. A counter 34 inhibits the receiver output after a preset number of pulses is received, the inhibition being removed when there is a long gap between adjacent received pulses. Specification 997,582 is referred to.