baber/WOPTO huggingface dataset:
Patent GB-1489143-A (GB)
Title: Subscriber line interface circuit
IPC: H04M19/00
Filed: 1975-10-31
Abstract: 1489143 Automatic exchange systems INTERNATIONAL BUSINESS MACHINES CORP 31 Oct 1975 [23 Dec 1974] 45274/75 Heading H4K In a subscriber's line circuit one wire 15 of the subscriber's line is connected via a feed circuit 35 and a selection circuit 46 to two terminals, - 30 V., - 48 V. of a power supply, the selection circuits having control inputs A, Z, RC for governing to which of the two supply voltages the wire 15 is connected. The voltage of - 30 V. is applied if the handset 11 is on-hook (Z= 1), or if ringing current is applied (RC = 1) or if the line current is above an upper tolerance level VH (A>VH). The voltage of -48 V. is only applied if the handset is off-hook (Z = 0) and the line current is below a lower tolerance level VL (A<VL). Fig. 3B (not shown) illustrates a logic circuit realization of the selection circuit 46. The feed circuits 34, 35, Fig. 2, comprise socalled gyrator circuits, e.g. 34a, which for D.C. current approximates to resistances whereas for A.C. currents they each approximate to an inductance in series with a resistance, the inductance being given by L=R3.R2.C1. Where no varistor circuitry is included in the substation circuits components Z2, T3 and R5, Fig. 2, are omitted from each feed circuit and a changeover of supply voltage requires no modification of these circuits. However, if varistor circuitry is included it is necessary to maintain the line current constant on voltage changeover and transistor T3 is turned off by a signal B from the selection circuit when the voltage is switched to - 30 V. and the Zener diode Z2 acts to maintain the line current constant. Transistor T2 is switched on to inhibit the feed circuit during ringing, by using a signal RX derived from the selection circuit. A differential amplifier arrangement 44, 45 (Fig. 1) is used to eliminate echoes which may occur due to the signal 52 on line 18 being fed via the feed circuits 34, 35 to the line 26; the circuit 45 is therefore designed to simulate the feed circuits in this respect. Diode arrangements 36-38, 40-43 are used to limit signal amplitude levels. Components 19, 20 constitute the line terminating impedance.
Patent GB-1019039-A (GB)
Title: Motor vehicle bodies
Inventor: ANCLIFF WALTER ALBERT
IPC: E05B65/20
Filed: 1963-11-16
Abstract: 1,019,039. Vehicle bodies. FORD MOTOR CO. Ltd. Nov. 16, 1964 [Nov. 16, 1963], No. 45325/ 63. Heading B7B. A body panel 11 adjacent the rear edge of a door 1 is provided with an indentation 9 so that the edge 8 of the door may be gripped to serve as a door handle. The indentation may be closed by a pivoted cover flush with the door panel.
Patent GB-1535732-A (GB)
Title: Hand-operated device for pressing clothes
IPC: D06F75/08
Filed: 1975-10-31
Abstract: 1535732 Hand pressing device for trousers &c B ALLVIN 31 Oct 1975 [13 Nov 1974] 45465/75 Heading D1A A hand operated pressing device comprises jaws AB with flat surfaces between which an article C can be pressed pivoted to pivoted handles G, H the flat surface of one jaw being electrically heated while the other jaw B has a further flat surface on its outer side so that, with the jaws closed together, the whole device may be used as a flat iron. The electric heater is adjustably thermostatically controlled.
Patent GB-1516760-A (GB)
Title: High pressure liquid chromatography system
IPC: G01N30/32
Filed: 1976-11-03
Abstract: 1516760 Liquid chromatography VARIAN ASSOCIATES INC 3 Nov 1976 [10 Nov 1975] 45641/76 Heading B1H In a high pressure liquid chromatography system utilising a reciprocating feed pump, flow to said pump is controlled by a positively actuated inlet valve actuated by the same power train as the pump. Specifically both are driven by eccentrics on the same shaft and the valve opening is delayed following a pump stroke for a predetermined period to allow of decompression of the liquid in the pump chamber. Adjustable overtravel means may be provided in the connection to the valve needle to permit a predetermined period of seating thereof.
Patent GB-1189295-A (GB)
Title: Improvements in or relating to Fluid Springs
Inventor: HIRST ARCHIE JOHN
IPC: B60G11/26
Filed: 1966-10-13
Abstract: 1,189,295. Vehicle suspension systems. METALASTIK Ltd. 28 Sept., 1967 [13 Oct., 1966], No. 45753/66. Heading B7D. [Also in Division F2] A vehicle suspension system incorporates fluid springs of the rolling diaphragm type in which the tendency of such springs to undergo unsprung lateral displacement is avoided by the expedient of fitting an elastomeric O-ring in the spring chamber in contact with the diaphragm and surrounding its operating plunger (see Division F2). In Fig. 3, a public transport vehicle has its rear axle supported by a pair of rigid beams 64 each of which is fitted with a fluid spring 67 of this form. The front axle is supported by a pair of trailing links 72 each fitted with one such spring 80. The fluid (gas or liquid) for all these springs may be derived from a common source (not shown) to which they are all connected through suitable valves, e.g. to constitute a self-levelling system.
Patent GB-950236-A (GB)
Title: Improvements in adhesives
Inventor: TOMLINSON ROY CHARLES BLEAY
IPC: C09J123/28
Filed: 1961-12-21
Abstract: An adhesive composition for uniting rubbers of different types e.g. in tyre manufacture comprises 50-90% of a halogenated butyl rubber, 5 to 30% neoprene and 5 to 40% natural rubber together with two separate carbon blacks of different particle size and the conventional rubber fillers, accelerators and curing agents. The carbon blacks specified are FEF with EPC, SRF, or FT and SRF with EPC.  Di-orthotolyl-guanidine is the specified curing agent. An example gives natural rubber, chlorinated butyl rubber, neoprene, SRF and EPC blacks Amberal, a process oil, zinc oxide, sulphur and di-ortho-tolyl guanidine.  Specification 910,454 is referred to.
Patent GB-1476445-A (GB)
Title: Method of making packs formed of multilayer plastics films
IPC: B65D33/36
Filed: 1974-10-23
Abstract: 1476445 Tear-opening score lines in packs AGFA-GEVAERT AG 23 Oct 1974 [25 Oct 1973] 45833/74 Headings B8C and B8K A pack formed of multilayer film with welded seams has the outermost layer only cut or scored to form a tear zone to enable the pack to be torn open. The pack may be formed with a longitudinal seam 5 and transverse seams 6 and has a pair of score lines so that it may be separated into sections 7. A bag may be scored on either side. The film may comprise a polyethylene or polypropylene inner layer, an aluminium middle layer and a cellulose or paper outer layer.
Patent GB-1527872-A (GB)
Title: Ignition system for internal combustion engines
IPC: F02P9/00
Filed: 1975-11-06
Abstract: 1527872 Ignition systems T MIZOGUCHI 6 Nov 1975 [6 Nov 1974] 46031/75 Heading F1B A coil ignition system comprises at least one diode 6 connected in the current path between the positive end 16 of the secondary winding 12 of the coil 1 and earth 7 so that in use current flows from the cathode to the anode of the diode, the or each diode having a characteristic such that reverse current flows suddenly at reverse voltages above a predetermined value. The diode or each diode may be positioned between an HT electrode 41 to 44 of the distributor and the respective sparking plug 51  to 54 or between the earth electrodes of the sparking plugs and earth 7.
Patent GB-1412935-A (GB)
Title: Fluid heating systems
IPC: F24D18/00
Filed: 1971-10-05
Abstract: 1412935 Fluid circuits A F STOBART 5 Oct 1972 [5 Oct 1971 11 Nov 1971 1 March 1972] 46347/71 52515/71 and 9623/72 Heading F4H and F4U Apparatus for heating a fluid comprises a fluid-cooled Stirling cycle engine 2 driving a Stirling cycle heat pump 6, and a fluid circuit so arranged that the fluid can circulate both through the heat pump 8, 10 so as to absorb heat from its working medium, and through the cooling system of the engine 12. The hot fluid then passes to radiators via a line 14 and returns via a line 16. The engine 2 may also drive a generator which is arranged to charge an accumulator, for powering a control unit. The control unit operates valves in the fuel line and the hot fluid outlet respectively, to control the running and output of the system.
Patent GB-1536663-A (GB)
Title: Fibre-reinforced articles
IPC: C04B28/14
Filed: 1975-10-28
Abstract: 1536663 Fibrous reinforced gypsum board CAPE BOARDS & PANELS Ltd 28 Oct 1975 [28 Oct 1974] 46451/74 Heading C3N [Also in Division D2] A board is made from a composition comprising gypsum plaster, fibrous mineral reinforcement and 1-25% by weight, based on the solids content of the composition of a cellulosic fibrous material. The fibrous mineral may be one or more of glass, ceramic, mineral wool or asbestos. The cellulosic material may be one or more of cellulose, cellulose derivatives, newsprint, bleached and unbleached paper pulp, sisal, cotton, wood chips, jute, hemp, straw and ramie. The composition may include one or more of a setting accelerator or retarder, a flocculant, a water proofing agent, a filter aid and a filler. Manufacture may comprise delivery on to a conveyer or on to a backing sheet thereon of an aqueous slurry of gypsum plaster and cellulosic fibrous material, introduction into the slurry downstream of the delivery of fibrous mineral reinforcement, removal of water and compression of the slurry against the conveyer during setting.
Patent GB-1164286-A (GB)
Title: Coiled Magnetic Cores of Magnetic Sheets for Transformer Columns and Their Manufacturing Process.
Inventor: WOODIN ANTHONY JOHN
IPC: H01F41/02
Filed: 1965-12-24
Abstract: 1,164,286. Coiling strip. A. J. WOODIN. 24 Dec., 1965, No. 46722/65. Heading B3E. [Also in Division H1] A cylindrical magnetic core consists of individual magnetic steel sheets coiled together such that the longitudinal edges of the sheets are parallel to the core axis and are staggered in relation to those in adjacent turns of the core, the grains of the sheets being parallel to the core axis. The sheets may be soldered or welded together at their longitudinal edges to assist coiling and may be arranged so as to provide axial cooling ducts between series of turns. The sheets may be of arbitrary width or cut from strip. The core may be secured with clamps or shrinkrings, then annealed and the clamps replaced with insulating reinforcing members (not detailed). Apparatus for coiling the sheets consists of a continuous, driven belt (1) (Fig. 3, not shown) co-operating with a roller (3), the sheets being successively fed between the belt and roller to be wound on the latter.
Patent GB-1150876-A (GB)
Title: Apparatus Including Two Shafts Coupled End To End And Electrical Connections For Conductors Carried By The Shafts
Inventor: BENNETT ROY BRIAN
IPC: H02G5/06
Filed: 1965-11-05
Abstract: 1,150,876. Connecting conductors carried by rotatable shafts. ENGLISH ELECTRIC CO. Ltd. 3 Nov., 1966 [5 Nov., 1965], No. 46994/65. Heading H2E. An electrical coupling comprises conductors 17, 18 and 19, 20 disposed in bores in shafts 11 and 10 respectively, the conductors having radially extending portions 17A, 18A, 19A, 20A such that they may be connected together in pairs as by bolts 14. End flanges 10A and 11A are connected together, for example by bolts, and the conductors are insulated from each other and from the shafts by insulation 21 to 26. Washer 15 and insulation 16 serve to keep the conductors in their relative positions and to ensure good contact at bolts 14. The coupling is of particular use in carrying the excitation current from an exciter to the field winding of a dynamo-electric machine carried on a shaft which is mechanically coupled end to end with the shaft carrying the exciter.
Patent GB-1535757-A (GB)
Title: Bag filling nozzle
IPC: B65B39/04
Filed: 1976-11-15
Abstract: 1535757 Filling cushions VITA INTERNATIONAL Ltd 15 Nov 1976 [15 Nov 1975] 47178/75 Heading A4M [Also in Division B8] A nozzle for a bag-filling or pillow case stuffing apparatus is provided with an outwardly extending frusto-conical perforate screen 14 over which an imperforate bag to be filled can be placed. A perforate bag can be placed just on the nozzle. Compressed air from an air nozzle 13 feeds crumbed foamed material through the filling nozzle into the bag.
Patent GB-1064067-A (GB)
Title: Process and apparatus for treating nylon filaments
IPC: D01F6/60
Filed: 1963-12-02
Abstract: 1,064,067. Treating nylon yarn. MONSANTO CO. Dec. 2, 1963 [Dec. 3, 1962; Feb. 8, 1963], No. 47476/63. Heading B5B. A process for treating continuous filament nylon yarn to reduce the tendency to contract longitudinally, comprises stretching the yarn more than twice its original length to increase its molecular orientation, cooling the yarn under relaxing conditions and then further relaxing the stretched yarn by twice contacting it with a heated surface which is either stationary or moving in the same direction as the yarn, and cooling the yarn by passing it through air after each contact with the heated surface. The temperature of the heated surface may be 160-240‹ C., the yarn being cooled to below 140‹ C. between contacts therewith. In one embodiment (Fig. 1), a yarn 10 is passed from advancing means 12, 13 to snubbing pin 14 which may be stationary, or moving in the same direction as the yarn, and may be heated, and thence to rotatable draw roll 15, the axis of which is skew relative to the axis of separator roll 16, so as to prevent superimposition of the wraps. At 17, the yarn temperature is normally at 150-190‹ C. and under high tension. The yarn is then cooled to e.g. 40-130‹ C. as it progresses in figure-of-eight path along rolls 15 and 16, the tension being gradually reduced with each succeeding wrap until at point 21, just before contact with heated relaxing pin 18, the yarn tension is 0À05 to 1À8 g/den. The yarn is heated to 150-190‹ C. on pin 18, cooled again to 40-130‹ C. on draw roll 15, re-heated on pin 18, re-cooled on the draw roll and forwarded to take-up device 23. The axis of pin 18 is skew relative to the axis of draw roll 15. In a further embodiment (not shown) the yarn after its initial contact with pin 18 is passed round separator roll 16 before contacting roll 15. Examples relate to the treatment of nylon 66 yarn.
Patent GB-1119409-A (GB)
Title: Improvements relating to flying helmets
Inventor: LOBELLE MARCEL JULES ODILON
IPC: A42B3/22
Filed: 1965-11-09
Abstract: 1,119,409. Flying helmet. M. L. AVIATION CO. Ltd. 9 Nov., 1966, No. 47500/65. Addition to 951,817. Heading A3V. A flying helmet has a visor 2 which is movable between an upper open position (Fig. 2) and a closed position (Fig. 4) and includes a mechanism for automatically locking the visor in the closed position when the wearer is subjected to a G-force equivalent to that which might be experienced by the wearer on being ejected from his aircraft by an ejection seat. The visor 2 is mounted on arms 6 which are pivoted to the helmet at 3. A tension spring 10 extends between an anchor point 12 on the helmet and the end 11 of a lever 8 pivoted to the arm 6 at 7, the lever 8 being connected to an inertia lever 9, this assembly forming a two-stage over-centre mechanism. The visor 2 is held in its open position by the spring 10 and by a spring-loaded catch 22 which engages an extension 24 of the arm 6. When the visor 2 is closed manually the spring 10 moves to the other side of the pivot 3 to hold the visor in its closed position determined by extension 28 engaging a stop 21. If the wearer is then subjected to a G-force the inertia lever 9 swings the lever 8 clockwise (Fig. 4) so that the spring moves to the other side of the pivot 7, thus biassing the lever 9 so that a projection 14 on the lever 9 engages a pin 13 to lock the visor 2 in the lower position. The lever 9 can be manually released by an extension 15. If the wearer is subjected to the G-force with the visor open, the G-force causes the visor to swing to its closed position and then locks it in its closed position as described above.
Patent GB-1046665-A (GB)
Title: Valve assembly for control of fluid flow
IPC: F15B13/04
Filed: 1964-11-23
Abstract: 1,046,665. Valves. BORG-WARNER CORPORATION. Nov. 23, 1964 [Nov. 21, 1963], No. 47598/64. Heading F2V. The control of fluid to and from a ram 26 is effected by a spool valve 11 and an aligned anti-cavitation valve 15 coacting with a floating seat 18 and a check valve 19 with a common spring 21 therebetween; the spool 11 incorporates a detent mechanism. Rightward movement of the spool 11 from the control position shown enables supply fluid from a port 27 to unseat the check valve 19 and flow to the lower side of the ram via spool groove 28 and a port 23, the fluid from the other side of the ram going to exhaust by way of a port 24 and a spool groove 29. Leftward travel of the spool 11 results in the supply fluid unseating the check valve 19 and flowing to the upper side of the ram via groove 28 and port 24; the fluid from the other side of the ram flows to exhaust by port 23 and a spool groove 30 unless cavitation occurs due to the ram load in which case the pressure of the exhausting fluid rises sufficiently to overcome the spring 21 and the supply pressure to open the cavitation valve to enable the exhausting fluid to flow to the other side of the ram via port 31 in the check valve 19 and the groove 28.
Patent GB-1165207-A (GB)
Title: Improvements in and relating to Vane Type Pumps and Motors
IPC: F04C2/344
Filed: 1966-10-24
Abstract: 1,165,207. Rotary pumps and motors. ABEX CORP. Oct. 24, 1966 [Dec. 9, 1965], No.47648/66. Heading F1F. A rotary sliding vane pump or motor of the multiple abutment type, having a roter 14, Fig. 3, formed with a plurality of equiangularly-spaced radial slots 17 slidably mounting vanes 18 with each vane having a groove 36 extending across its tip and down its axial end faces (not shown) so that the radial outer and inner end faces of the vane are subjected to equal fluid-pressure, includes beneath each vane one or more radial bores 38 each slidably mounting a plunger 41 having a bore 42 connecting the inner end 32 of a vane slot 17 with a pressure chamber 39 defined by an annular groove in the rotor which is closed by a sleeve 40. Each plunger, at its outer end is formed with a conical surface 43 co-operable with the plane inner end 44 of the vane 18 to form a check valve and includes at its inner end a restricted opening 46 to the chamber 39 and a chamfered edge 47. As a vane 18 traverses the high pressure zone of the pump or motor and moves inwardly in its slot, the valve 41, 44 opens to admit pressure fluid to the bore or bores 38 and restrictedly to the pressure chamber 39 until the pressure in that chamber is sufficient to balance the pressure acting to open the valve. As a vane 18 traverses a suction or low pressure zone of the pump or motor, the pressure in the chamber 39 exceeds the pressure in the inner end 32 of the slot 17 whense the valve 41, 44 closes to urge the vane 18 radially outwards into sealing engagement with the inner cam surface 19 on the stator 9. The valves 41, 44 and the restriction 46 together with the chamfers 47 arrests downward movement of the plungers to prevent damage thereto and to the surfaces against which they abut, fluid trapped beneath the chamfer 47 acts as a shock absorber.
Patent GB-1411114-A (GB)
Title: Brushes for electric machines
IPC: H01R39/36
Filed: 1972-10-17
Abstract: 1411114 Brush gear for electric machines A B SHAPIRO V P CHERNYAVSKY and I A KADI-OGLY 17 Oct 1972 47794/72 Heading H2A A brush 3 is releasably clamped between a current carrying means 2 and an insulating washer 7 by a spring 4 which at one end is screwed into a threaded aperture 5 in the means 2 and which at the other end is fitted on to a screw 6, the washer 7 and an insulating tube 8 surrounding the spring 4 in a channel (9, Fig. 2, not shown) in the brush 3 thereby acting to prevent current from flowing through the spring. The brush is released from the clamping arrangement by threading a screw (not shown) right through the interior of the spring 4 whereby to cause the screw 6 to be pushed out of engagement with the washer 7. In the embodiment of Figs. 3, 4 (not shown), a brush (3) is likewise clamped between a current carrying means (2) and an insulating strip (11) at one end of a flat spring (10).
Patent GB-1441089-A (GB)
Title: Device for conveying machine components
IPC: B65G17/32
Filed: 1973-10-12
Abstract: 1441089 Conveying articles SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 12 Oct 1973 [14 Oct 1972] 47834/73 Heading B8A Articles having a bore are conveyed by a device comprising a housing containing a circulating chain to the links of which are attached, at right angles to the direction of motion of the chain, means for insertion into the bore of an article, these means entering at an inclined angle, a trough in an inlet station or an exit station mounted on the housing. In the Figure, bolts 2 mounted on chain 1 extend through an opening in a side wall 14 of a trough 13 at inlet station 11 to pick up a rolling bearing race 12. The bolt enters at an angle due to the chain passing round sprocket 29 immediately upstream of the inlet station. A similar arrangement may be made for an exit station.
Patent GB-1276659-A (GB)
Title: Improvements in the recovery of sulphur
Inventor: MOSS GERALD
IPC: C01B17/04
Filed: 1968-10-09
Abstract: 1276659 Recovery of sulphur ESSO RESEARCH & ENG CO 5 Sept 1969 [9 Oct 1968] 47893/68 Heading C1A A process for recovery of sulphur from sulphur containing compounds comprises passing the sulphur containing compound through a fluidized bed of metallic oxide or carbonate which reacts with the sulphur-containing compound to form metallic sulphate, the metallic sulphate is passed to a regenerator and decomposed to the oxide and SO 2  gas, and the SO 2  is mixed with H 2 S and the two reacted to form sulphur. The preferred metallic oxide is calcium oxide, and the preferred carbonate is calcium carbonate. The metallic sulphate may be decomposed by passing hydrogen sulphide through the regenerator. A modified form of the process comprises passing a minor portion of a hydrogen sulphide through the regenerator, and mixing the SO 2  thus formed with the major portion of the H 2 S stream, and the mixed stream is passed to a converter where the reaction to sulphur takes place. The off gases are passed to a condenser where the sulphur is condensed out and the remaining gases are passed to the fluidized oxide bed to remove sulphur compounds. Before passing the gases to atmosphere the fluid bed of oxide may conveniently be located in the base of a stack for removal of sulphur compounds from flue gases before passing them to atmosphere.