baber/WOPTO huggingface dataset:
Patent GB-1386763-A (GB)
Title: Data storage methods
IPC: G03G5/16
Filed: 1970-11-13
Abstract: 1386763 Moving domain storage devices MULLARD Ltd 14 Feb 1972 [13 Nov 1970] 54134/70 Heading H3B The movement or fixing of a magnetic cylindrical domain in a film of a photo-magenetic material is effected by incident radiation. The magnetic properties of materials such as ferric borate may be varied by radiation of wavelength 0À4-1À1 microns, as in Specification 1,298,846; in pure ferric borate the permeability is increased by the radiation, while in copper doped ferric borate the permeability is decreased. When such materials are used to support cylindrical domains in a data storage device the position of a domain can be stabilized by radiation if the material's permeability is increased, e.g. ferric borate, or, if the material's permeability is decreased, e.g. the copper doped material, a domain may be moved (or made easier to move) by the radiation. Conventional propagation and magnetic biasing are used. Because of relaxation ; long term effects require low temperatures, e.g. 120 K., but room temperature control of the domains may be achieved using a pulsed radiation source provided that any related propagation field pulse follows a radiation pulse within the relaxation time, e.g. 1 ms.
Patent GB-1340160-A (GB)
Title: 7-ureidocephalosporins
IPC: A61K31/545
Filed: 1972-11-23
Abstract: 1340160 7-Ureidocephalosporins SMITH KLINE CORP 23 Nov 1972 [6 Dec 1971] 54171/72 Heading C2A Novel 7-ureidocephalosporins having the general formula wherein Het, is a 5- or 6-membered heterocycle containing 1 to 4 hetero atoms selected from O, S and N, and which may be substituted with one or two groups selected from C 1 -C 4  alkyl, C 1 -C 4  alkoxy, C 1 -C 4  alkylamino, di(C 1 -C 4  alkyl)amino, cyclopropyl, allyl, trifluoromethyl, mercapto, halogen, -SCH 3 , -NH 2  and -OH; and M is hydrogen, an alkali metal cation, an alkaline earth metal cation or an organic ammonium cation; are prepared by reacting 7-aminocephalosporanic acid with the appro-  priate mercaptoheterocyclic compound and then with aqueous potassium cyanate; or vice versa. The first said reaction is preferably performed under reflux in water or aqueous acetone, the second said reaction being at room temperature. Pharmaceutical compositions having antibiotic activity comprise a ureidocephalosporin of the above formula and a suitable carrier.
Patent GB-1474047-A (GB)
Title: Arrangement for producing a resilient mat
IPC: D04H3/03
Filed: 1974-12-17
Abstract: 1474047 Non-woven fabrics; web formation AKZO NV 17 Dec 1974 [18 Dec 1973] 54372/74 Headings D1N and D1R A resilient non-woven mat 10 having both surfaces smooth is produced by extruding polymer through rows of orifices in spinneret 6 situated above a bath of water 28, there being guides 2, 3 fixedly arranged in the bath having smooth surfaces 4, 5 lying in or being tangential at their upper ends to planes which intersect the surface 11 of the bath along straight lines parallel to the surfaces of the mat being produced and to the outer rows of orifices and which are inclined at an angle of 10 to 80‹ to the surface of the bath. The extruded filaments are still tacky when they enter the bath. The mat 10 is withdrawn at a slower speed than the filaments are extruded and hence filament loops are formed. In the embodiment of Fig. 1 the lines of intersection of each plane with the surface of the bath is vertically below an outer row of spinneret orifices. The filaments from these orifices contact polished metal surfaces 4, 5 whilst still soft and hence the loops formed by the deceleration of the filaments are packed together parallel to the surfaces 4, 5, to give a mat with smooth dense autogeneously bonded surfaces. The filaments extruded from the inner rows of orifices are less soft by the time they reach the outer layers formed by the outer rows of orifices. Hence the mat density increases from the inside. In the embodiment of Fig. 2 plates 2, 3 are replaced by triangular cross-section guides 20, 21 whose ridges 12, 13 are no more than 5 mm below the bath surface and parallel to and substantially vertically below the second to eighth row of orifices counting from each outside row. Filaments 14, 17, 15, 18 extruded from orifice rows outside ridges 12, 13 contact the outer surfaces 22, 24 of the guide. The surface layers of the mat are thus of greater density than those produced by plates 2, 3. In the embodiment of Fig. 3, not shown one guide is a flat plate and the other is of triangular cross-section. Plates 2, 3 may be concave and may consist of several narrow surfaces whose edges run parallel to the surface of the bath.
Patent GB-1208743-A (GB)
Title: Improvements in or relating to nuclear reactor charge tubes
Inventor: HARTE JAMES MARTIN
IPC: G21C13/02
Filed: 1967-11-30
Abstract: 1,208,743. Fuelling reactors. ATOMIC POWER CONSTRUCTIONS Ltd. 2 Dec., 1968 [30 Nov., 1967], No. 54669/67. Heading G6C. To allow for thermal movement between the pressure vessel 8 and reactor core 35 a fuelling charge tube 1 extending between the vessel and core is provided with a joint 20. The two portions of the charge tube 1 to either side of the joint 20 are permitted by the joint to move telescopically relatively to each other and also to pivot relatively to each other. As shown, the portion of the charge tube above the joint comprises inner and outer sleeves 21b, 21a fixed to the pressure vessel 8 through a nozzle 4a and clamping nut 30, and the portion below the joint comprises a sleeve 22 surrounding the sleeve 21a with clearance. An annular surface 21c at the lower end of the assembly 21a, 21b forms a pivot on which the sleeve 22 may roll.
Patent GB-1417719-A (GB)
Title: Imaging system
IPC: G02F1/137
Filed: 1972-11-28
Abstract: 1417719 Modulating light XEROX CORP 28 Nov 1972 [29 Nov 1971] 54826/72 Heading H4F [Also in Division G2] The relaxation characteristics of an electrode-sandwiched imaged liquid crystal layer, displaying contrasting portions according to either the cholesteric-nematic phase transition or the Grandjean to focal-conic texture transformation, are modified by application of a factor (other than an electric field) which is capable of bringing about the transition or transformation in question, if of sufficient magnitude, and is maintained between the ambient value of the factor and the threshold field strength at which the factor is capable of causing the transition or transformation. Magnetic fields, thermal fields, radiation fields and pressure fields are discussed. The liquid crystal layer may be imaged by an X-Y address system, photoconductively, by an electron beam or by styli.
Patent GB-1128062-A (GB)
Title: A sub-standard motion-picture projector
IPC: G03B1/50
Filed: 1965-12-24
Abstract: 1,128,062. Cine projectors. ELMO CO. Ltd. Dec.24, 1965 [Dec.28, 1964], No.54869/65. Heading G2E. A cine projector for use with either of two types of sub-standard cine film differing the dimensions of the picture frame, contains an aperture plate device Fig. 5 having a main stationary aperture plate 14 with an aperture 50 of a size suitable for the film having the larger picture frame and an auxiliary movable aperture plate 40 with an aperture 48 of a size suitable for the film having the smaller picture frame, the auxiliary aperture plate being moved from its inoperative position as shown into its operative position to mask the main aperture 50 by the rotation of knob 16. Operation of the knob 16 also allows the film guide plate 18 to be pulled laterally by spring 26 from the guiding position for one type of film as shown into the correct position for the other type of film, the film being held against the guides by the sprung film pressure plates 30. The projector also includes a levertype claw for intermittently transporting the film having a movable fulcrum to adjust the length of stroke, and interchangeable sets of sprocket wheels and associated guide elements.
Patent GB-1412970-A (GB)
Title: Pharmaceutical preparations containing silicone rubber
IPC: A61K9/70
Filed: 1974-01-15
Abstract: 1412970 Preparations containing silicone rubber administering medicines SCHERING AG 15 Jan 1974 55191/74 Addition to 1412969 Headings A5B and A5R Preparations having a regular, invariable and long-lasting release of active substance, and shaped in the form of filamentary material, comprise a pharmacologically active substance (e.g. a medicament such as a hormone, prostaglandin, vitamin, antibiotic, contraceptive or spermicide, optionally together with barium sulphate) and a silicone elastomer of the LTV (low temperature vulcanising) type, i.e. a silicone elastomer which can be obtained from a mixture of linear organo polysiloxanes, the one containing alkenyl groups, especially vinyl groups, and the other containing Si-H linkages, by vulcanization at from 10‹ to 120‹C, preferably 40‹ to 120‹C, in the presence of a noble metal catalyst e.g. platinum or a platinum compound. The preparations may be administered internally or externally to humans or animals in the form of a prosthetic device, intra-uterine or intra-vaginal implant, adhesive plaster, or in a form provided with a recovery thread, the active substance being dissolved or uniformly suspended in the silicone elastomer. The preparations may be in the form of a fabric made up of the filamentary material containing the active ingredient. The fabric may have the filaments bound or incorporated with textile fibres and the fabric may be provided with at least one layer of cellulose wadding and made up in a form suitable for use as a bandage material.
Patent GB-1168620-A (GB)
Title: Coating Vehicles and Compositions Thereof.
Inventor: RUCKER ROBERT ANTON
IPC: C08L83/02
Filed: 1966-12-09
Abstract: 1,168,620. Organosilicon polymers. BUNKER HILL CO. 9 Dec., 1966, No. 55293/66. Addition to 1,075,112. Heading C3T. A coating vehicle as claimed in Claim 1 of Specification 1,075,112 wherein the free-water free, hydrolysis product has been separated by vacuum distilling the reaction mixture in which the hydrolysis product is produced, under an inert atmosphere and wherein said organic solvent in which the hydrolysis product is dissolved comprises an alcohol higher than ethanol.
Patent GB-1212898-A (GB)
Title: Vehicle engine exhaust system & control
Inventor: SCHNURMACHER GERALD LEE
IPC: F01N3/18
Filed: 1968-11-22
Abstract: 1,212,898. I.C. engine exhaust systems. G.L. SCHNURMACHER. Nov.22, 1968 [Nov.24, 1967], No.55448/68. Heading F1B. A vehicle I.C. engine comprises an exhaust passage leading to atmosphere from an exhaust manifold, a stream of air from an electric blower being heated by an electric heater element and directed into the exhaust passage to vaporize liquid in the passage and carry it along the passage to the atmosphere, and a temperature-responsive switch to energize the blower and heater element when the temperature of the exhaust fluids is below the level at which the liquid is vaporized. When ignition switch 26 is moved to the ON position, capacitor 29 is charged slowly through a resistor 28 to provide a time delay before a relay 37, 41 energizes a blower 17 and a heater element 18 located in a duct 22 communicating with the exhaust pipe 13. The time delay allows the starter motor 24 to be operated by means of the starter switch 27 before the battery has to supply power to the blower 17 and heater element 18. The hot air discharged from the duct 22 into the exhaust pipe 13 vaporizes liquids occurring in the exhaust pipe during cold running of the engine. A switch 39 actuated by a temperature-responsive bi-metallic element 36 in the tailpipe 16 de-energizes the blower 17 and heater element 18 when the temperature is sufficient to ensure vaporization. When the ignition switch is turned to the OFF position, the capacitor 29 discharges slowly through a resistor 43 to provide a time delay before the relay 37, 41 drops out, whereby if the blower 17 and heater element 18 are still energized they will remain energized for a short time to discharge any lingering vapours from the exhaust system.
Patent GB-1287116-A (GB)
Title: Inverters
IPC: H02M7/525
Filed: 1969-11-12
Abstract: 1287116 Static DC/AC converters THOMSON CSF 12 Nov 1969 [14 Nov 1968] 55477/69 Heading H2F In a D.C./A.C. converter as shown Fig. 7, having a D.C. supply 7 and comprising a three arm tank circuit including primary winding 1, primary winding 2 and a capacitor 3 respectively controlled rectifiers 5, 6 (e.g. thyristors or thyratrons) conduct alternately to supply positive and negative half cycles of sinusoidal current to a load 4. Controlled rectifiers 10, 11 in series with secondaries 9, 8 respectively are rendered conductive selectively to control the load current by returning energy to the source 7.  When rectifier 6 conducts a half sine wave of current is applied to the load 4 via primary 1 and capacitor 3. When rectifier 5 conducts rectifier 6 is blocked and the capacitor 3 discharges through primary 2 providing the next half sine wave. Control of load current. If during the conduction period (0 to t 4 ) of the rectifier 6, the rectifier 10 is turned on, then the energy stored in primary 1 is no longer passed to the capacitor 3 and the load, but is returned to the source via the secondary 9. Thus the load current is cut-off when rectifier 10 is turned on. Fig. 8(a) shows the secondary voltage cosine curve during the period 0-t 4  when rectifier 6 is conductive. As long as the secondary voltage is lower than the source voltage E 0 , i.e. until time t 2 , the rectifier 10 cannot conduct. As shown it is turned on at time t 2  and the srcondary voltage drops to the level E 0  and as a result load current as shown in full line Fig. 8(b) drops to zero. Figs. 9(a), 9(b) show the secondary voltage and load current conditions respectively when the rectifier 10 is turned on at time t 3 , i.e. preceding the turn on of main rectifier 5 by a smaller angle # compared with Fig. 8. Thus the load current is proportional to the angle # and the inverter power output can be controlled by varying the magnitude of #. The effect of the turning on of rectifier 11 is similar in the alternate half cycles. In an inverter, Fig. 11 (not shown), several groups of circuit elements as shown Fig. 7, are combined, each group being connected to a respective primary of a transformer the single secondary of which is connected to the load 4, and the groups may be controlled to operate simultaneously or successively. In the latter case the output may be a frequency modulated wave train.
Patent GB-1534510-A (GB)
Title: Patterning units for circular knitting machines
IPC: D04B15/74
Filed: 1974-12-24
Abstract: 1534510 Knitting machines KROY KNITTING DEVELOPMENTS Ltd 11 Dec 1975 [24 Dec 1974] 55798/74 Heading D1C A pattern unit for a circular, e.g. high-pile, knitting machine comprises a rotatable outer cylindrical drum 13 housing in tricks 14 axially slidable selector elements 15 and a stationary inner cylindrical core 16 around which is provided a cam formation 16a for controlling the elements 15, the distribution of elements 15 in the tricks 14 being determined by the required pattern and those elements present being slidingly raised or lowered by the cam formation to raise or lower associated knitting instruments such as needles 10 of which the pitch corresponds to that of the tricks 14. The needles may be displaced between tracks 11, 12 at a carding station. The cam formation may be a channel cooperating with butts 15a on the elements 15 or a rib cooperating with recesses in the elements.
Patent GB-1481308-A (GB)
Title: Terminal insulators
IPC: H01R4/70
Filed: 1973-12-01
Abstract: 1481308 Terminal insulators LUCAS INDUSTRIES Ltd 18 Nov 1974 [1 Dec 1973] 55805/73 Heading H2E A terminal post insulator comprises a length of flexible tubing having slits defining at least one displaceable flap, such that in use the flap or flaps can be displaced for connection of a conductor to the post.
Patent GB-1507019-A (GB)
Title: Manganese alloys with high damping properties
IPC: C22C22/00
Filed: 1973-12-07
Abstract: 1507019 Manganese alloys DELTA METAL (BW) Ltd 7 March 1975 [7 Dec 1973]  56958/73 Heading C7A A material with high acoustic damping properties up to 300 C consists of Mn 78-90 Cu 0-22 Ni 0-22 with optionally Fe 0-5 replacing an equal amount of Cu and or Ni. The damping properties may be improved by a solution treatment at 750‹C solidus (preferably 850-1000‹C) and an ageing at 380-600 C, (preferably 400‹C).
Patent GB-1168820-A (GB)
Title: Improvements relating to Acid Tin Electroplating Solutions
IPC: C25D3/30
Filed: 1966-12-21
Abstract: 1,168,820. Electro-plating with tin. PHILIPS S ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec.21, 1966 [Dec.23, 1965], No. 57125/66. Heading C7B. An acid tin electro-plating solution comprises sulphate ions and an inorganic phosphorus-oxygen compound, e.g. orthophosphoric acid, an orthophosphate, pyrophosphate or metaphosphate, orthophosphorous acid, a phosphite or hypophosphite, wherein the phosphorus content calculated as H 3 PO 4  of the phosphorus-oxygen compound in the solution is from 0À001-10 gms/1. An example is given of a bath which also contains formalin, and # 1, 3 - dihydro - o - tolylaldehyde.
Patent GB-1215319-A (GB)
Title: Apparatus intended for simulating space meetings
IPC: B64G7/00
Filed: 1967-12-19
Abstract: 1,215,319. Space craft simulation. ANDRE MONNERET FILS. 19 Dec., 1967 [21 Dec., 1966; 29 Nov., 1967], No. 57514/67. Heading B7W. Apparatus for simulating craft meeting in space comprises a stationary horizontal circular dish 4 at the centre of which is a first sphere 41 (simulating the Earth) carried by a vertical hollow shaft 42, a second sphere 13 of smaller diameter (simulating a satellite or the moon) held close to the dish near its edge 4a by an arm 14 mounted on a vertical shaft 16 coaxial with the shaft 42, a drive assembly (which may include a motor 46 and reduction gearing 44, 45, 47 ... 52) to drive the shafts 42 and 16 at different speeds reproducing the relative movements of the Earth and a satellite, a third sphere 19 free to move over upper surface of the dish 4, the generating curve of which curves downwardly and inwardly and is such that the resultant on the sphere 19 from gravity and its reaction with the upper surface of the dish is a centripetal force inversely proportional to the square of the distance between the sphere 19 and the axis of the dish, and means (e.g. a forked arm 53 mounted on a sleeve 54) to impart motion to the third sphere. To assist in ascertaining when a gentle "touch down" has been simulated by the spheres 13 and 19, one may be magnetized, and the other of magnetic material, and at least one of these spheres may be coated with rubber to accentuate "bounce off". The sleeve 54 may have pads 55, 56 to act as slip clutches so that when the sleeve is raised the forked arm 53 is rotated, and when the sleeve is lowered the arm is braked. In an alternative form, Figs. 3 to 5 (not shown), the lower half of the sphere 41 is removed and the drive assembly 44 ... 52 is housed within this sphere. At the outer edge 4a of the dish 4 there is a groove (33) so that if the third sphere 19 overshoots the attempted meeting may be curtailed. Another method of limiting the time spent on an attempted meeting is to have a single tooth (37), Fig. 7 (not shown), on shaft 16 which engages a toothed wheel (36) to rotate it intermittently, the wheel (36) having a stud (35) which once each revolution of the wheel (36) breaks the power supply circuit for the motor 46. In a further embodiment, Figs. 6 and 7 (not shown), the sphere 19 is supported by the legs of the fork 53.
Patent GB-1218237-A (GB)
Title: Improvements in or relating to process of making tinplate
IPC: C25D5/36
Filed: 1968-12-05
Abstract: 1,218,237. Electrolytically making tin plate. JONES & LAUGHLIN STEEL CORP. Dec.5, 1968 [Dec. 8, 1967], No.57906/68. Heading C7B. A process of making tin plate comprises (a) electrolytically cleaning a steel base by making it the cathode in a pickling acid electrolyte comprising H 2  SO 4  or HCl to which tin is added so that a tin preplate is deposited simultaneously with the cleaning, (b) transferring the preplated steel base without fusion brightening into an acid electrotinning bath, (c) electro-plating it therein with tin, (d) heating the doubly plated base to fuse the tin coating, and (e) thereafter quenching it. In cleaning step (a), tin may be added to the electrolyte in the form of a stannous compound and also from insoluble anodes covered over 2% of their surface with tin. The anode in the pickling acid may be carbon or a Si-Fe alloy and the tin coated steel base be heated to between 580 and 600‹F. or the anode may be Pb and the coated base be heated to between 500 and 550‹F. The acid electro-tinning bath of steps (b) and (c) may comprise stannous chloride and alkali fluoride.
Patent GB-1451644-A (GB)
IPC: B62D5/24
Filed: 1973-12-17
Abstract: 1451644 Power steering systems KAYABAKOGYO KK 17 Dec 1973 [20 Dec 1972 15 Oct 1973] 58432/73 Heading B7H A power-steering system includes coaxial input and output shafts 19, 22 operatively interconnected by a joint allowing relative rotation and two sets of differential gear mechanism, a control means for the power actuator being connected to one mechanism. Shafts 19, 22 respectively have carriers 38, 39 for planet gears 79, 80 which respectively mesh with ring gears 81, 82 and with a freely rotatable sun gear 83. Ring gear 81 has a finger 84 engaging a control spool 47 and ring 82 is constrained by the worm 90 of a correction motor 88. In the system shown rotation of shaft 19 to the left causes the spool to move to the right and fluid passes via parts 64, 63 chambers 51, 53 and line 67 to chamber 28 thus moving the actuator piston 21. The ensuing rotation of shaft 22 causes planet gear 80 to rotate about the fixed ring gear 82 and this movement is transmitted to planet gear 79 causing the two shafts to rotate together but with a phase difference. On ceasing rotation of shaft 19 continued movement of shaft 22 is transmitted via the differential mechanism to move the spool back to its neutral position. The shafts may be connected by a pin or spline joint (Figs. 4, 5, not shown) or by a joint including a clutch which is actuated in dependence on the fluid pressure of the system (Fig. 7, not shown). The spool 47 is provided with reaction chambers for feel. The actuating piston 21 may be separated from the housings 11, 12 or may be replaced by an electric motor, in which case the spool 47 is replaced by a switch (Figs. 8B, 8D, not shown). The correction motor 88 acts to rotate the ring gear 82 and hence alter the angular relationship between the shafts so as to compensate for yaw or steering phase lag, and to adjust for the vehicle speed. The motor may also be used to steer a vehicle automatically on receipt of signals from a remote radio source, for example, or from a guide rail.