baber/WOPTO huggingface dataset:
Patent GB-1146516-A (GB)
Title: Refining of hydrocarbons
Inventor: SMIT JACOBUS JOHANNES
IPC: C10G29/12
Filed: 1966-11-01
Abstract: 1,146,516. Refining oils. NETHERLANDS REFINERY FOR PETROLEUM PRODUCTION. 24 Oct., 1967 [1 Nov., 1966], No. 49001/66. Heading C5E. A method of refining hydrocarbon stock comprises mixing water, which may if desired be at least in part complexed with boron trifluoride as boron trifluoride hydrate, with the hydrocarbon stock in liquid form to produce a dispersion containing at least 0À1% by weight of water, introducing into the said dispersion gaseous boron trifluoride in a quantity sufficient to provide a molar excess of boron trifluoride over water in the said dispersion whereby precipitation of undesirable constituents of the hydrocarbon stock is effected, and removing the precipitated material to provide a refined product. Up to 10% by weight of water may be used. The temperature may be from 0‹ to 90‹ C. and the pressure may be atmospheric or higher. Boron trifluoride may be recovered from the precipitate and recycled, the process being carried out continuously. The treated oil may be further treated with activated clay, extraction with sulphuric acid, or hydrogenation. The process is applicable to heavy gas oil, light spindle oil, vacuum distillate lubricating oil, transformer oil, electrical oil, or residual stocks. The precipitated material may be separated by gravity settling or by centrifugation.
Patent GB-1027860-A (GB)
Title: Improvements in or relating to magnesium production retorts
IPC: C22B26/22
Filed: 1964-12-02
Abstract: <PICT:1027860/C6-C7/1> <PICT:1027860/C6-C7/2> A retort for the production of magnesium has a purifying device between the furnace section and the condenser section thereof. The purifying device comprises a pair of foraminous end walls (22 and 23 Fig 3) containing a body of material (e.g. refractory particles 30 such as crushed firebrick or one or more perforate plates 38 (Fig. 5.) extending throughout or approximately throughout the cross-sectional area between the end walls so as to form a multiplicity of communicating passages therebetween.
Patent GB-1192947-A (GB)
Title: Improvements in or relating to Variable Radio-Frequency Auto-Transformers
IPC: H01F21/12
Filed: 1967-10-30
Abstract: 1,192,947. Transformers. MARCONI CO. Ltd. 30 Oct., 1967 [11 Nov., 1966], No. 49155/67. Heading H1T. A variable radio-frequency autotransformer has a bifilar main winding whose ends are connected to terminals T 1 , T 2  through at least two auxiliary coils, a slider contacting the main winding being connected to a third terminal T 3 . In the embodiment of Fig. 1, there are four auxiliary coils A 1 -A 4 . Magnetic coupling may be provided between pairs of these auxiliary coils or between all four coils. Other embodiments utilize only two coils by omitting A 1  and either A 3  or A 4  in Fig. 1. In a final embodiment (Fig. 3, not shown) there are eight coils, two series-connected coils replacing each coil A 1 -A 4  in Fig. 1, four of these coils being magnetically coupled together and the other four being coupled in two separate pairs. One conductor of the bifilar main winding may have one more turn than the other. The slider may move on a linear or arcuate path. The main winding may have a toroidal ferrite core, and the auxiliary coils may have ferrite beads as cores.
Patent GB-1017376-A (GB)
Title: Improvements in or relating to rock anchors
Inventor: HOBSON GEORGE CLARENCE
IPC: E21D21/00
Filed: 1963-12-14
Abstract: 1,017,376. Anchor-bolts; nuts. HAYDEN-NILOS Ltd. Dec. 11, 1964 [Dec. 14, 1963], No. 49474/63. Heading F2H. A rock anchor with a bearing plate 12, e.g. for holding a rock-supporting plank, comprises a rod 3 moved axially in a tube 4 by a halved nut 19, 19 co-acting with a threaded portion 3A of the rod to expand a bore-gripping arrangement 1 at the inner end of the anchor, each nut-half 19 moving in a radial guideway formed by opposed grooves 18 of two parallel channel-shaped members 17 and each nuthalf having a slotted extension 20 to which a quick-release lever 23, pivoted on the member 17, is connected by a link 21. When the levers 23 and links 21 are aligned with the guide members 17, as shown in Fig. 2, the levers are used by means of handles 30 or knobs at the lever ends, to rotate the nut 19, 19 to draw out the rod 3 and expand the sleeve 1 (or an equivalent in the form of serrated shells) to anchor the device. For release of the anchor, from a distance to avoid rock fall, a rope is passed through the angles 33 between extensions 32 of the handle stems and the levers (or through eyes provided on the levers) and the levers are pulled to the position shown in Fig. 4 to draw the nut-halves 19 apart. The guide members 17 between which the levers and links are pivoted are welded to a sleeve 16 rotatable on the rod 3 but loosely secured to the bearing plate 12 (welded to the tube 4) by a collar 14 on the plate. A transverse pin 10 on the rod 3 slides in slots 9 in the tube 4. Nuts 2, 31 are secured by pinning and welding respectively to the rod ends. The screw-thread of the nut and rod is of buttress, square or acme form.
Patent GB-1324242-A (GB)
Title: Coated gelatine capsules and a process for their manufacture
IPC: A61K9/48
Filed: 1970-10-20
Abstract: 1324242 Coated capsules CIBA-GEIGY AG 20 Oct 1970 [21 Oct 1969] 49761/70 Heading A5B [Also in Division B8]  Soft gelatin capsules are protected against moisture by coating them by conventional methods with a composition comprising or consisting of hydroxypropyl methyl cellulose and, optionally, shellac, ethyl cellulose and/or a physiologically tolerable alkylene glycol, e.g. propylene glycol. Fillers, pigments, dyes and flavour may be incorporated.
Patent GB-1187336-A (GB)
Title: Improvements in Gaps for Closing Tablet and Like Containers,and Methods of and Moulds for Manufacturing such Caps
Inventor: JOUSI REINO HJALMAR
IPC: B65D51/26
Filed: 1968-10-22
Abstract: 1,187,336. Container closures. R. H. JOUSI. 22 Oct., 1968, No. 49985/68. Heading B8T. [Also in Division B5] A closure cap for a tablet container having a part adapted to press resiliently against the tablets is made from a resilient plastics material in a single injection moulding operation, and comprises a cap part 1, from the inner surface of which extend at least two helically spiralling posts 2 connected at their other ends by a ring 5. Projections or flaps 3 and 4 extend conically outwardly and inwardly from the ring 5.
Patent GB-1082299-A (GB)
Title: Improvements in or relating to a dental equipment stand
IPC: A61C19/00
Filed: 1964-12-08
Abstract: 1,082,299. Dental stands. DENTISTS SUPPLY CO., OF NEW YORK. Dec. 8, 1964. [Dec. 19, 1963], No. 49995/64. Heading A5R. A dental stand comprises a cabinet, a carriage therein which supports dental instruments and power means for moving the carriage between a retracted position and a forward position and also for moving the carriage vertically relative to the cabinet. The carriage 32, which is supported by rollers 37, horizontally slidable in guide rails at the top of a sub-housing, carries a removable table top 22. The carriage 32 is vertically movable within the cabinet between a position whollyinside the cabinet and a desired elevated position. The sub-housing is supported (through pivotal links 146, 148) by a pair of arms 144, each of which is secured to a sleeve 134 vertically movable on a threaded shaft 132. The sub-housing is also connected to the carriage by pivotal links 108, 114. Each shaft 132 is rotatable in either direction by an electric motor 122 under the control of a switch 154 through reduction gearing 128 and is connected to the sleeves 134 by a ball nut 136, so that rotation of the shaft raises or lowers the sleeve as desired. With the subhousing and carriage in their lowermost positions, vertical upward movement of the sleeves 134 initially vertically raises the sub-housing and the carriage, cams 106 (associated with the links at each side of the cabinet between the sub-housing and carriage) moving in a vertical portion of cam grooves 100 in blocks 98 attached to the cabinet. When the bottom of the carriage reaches the top of the front wall of the housing, the cams enter portions of the cam grooves which permit the links to urge the carriage forwardly of the front of the cabinet, so that the dental instruments are made accessible. The motor 22 may then be further energised to raise the carriage further, as desired, while in its forwardly projecting position. By operating the switches for reversing the motor, the mechanism operates in reverse to retract the carriage and lower it into the cabinet. The carriage comprises a frame which receives similarly dimensioned interchangeable and exchangeable holders 50, each of which supports a dental instrument in its front face and contains a reel on which a flexible power supply conduit connected with the holder is wound for uncoiling as the instrument is removed for use. Each conduit is connected to an appropriate manifold, mounted within the cabinet and connected with supplies of water, air &c. for operating the instrument. The cabinet also contains a vacuum pump unit which is connected by flexible hose to one of the holders in the carriage, which holder has connections for a cuspidor and a saliva ejector.
Patent GB-1198586-A (GB)
Title: A Machine for Manufacturing Bolts, Nuts and Similar Articles.
IPC: A01G1/12
Filed: 1968-10-22
Abstract: 1,198,586. Reciprocating conveyers; grippers. NEDSCHROEF OCTROOI MAATSCHAPPIJ N.V. 22 Oct., 1968 [23 Oct., 1967], No. 50075/68. Headings B8A and B8H. A transfer mechanism for transferring workpieces 3 from one die station 4 to the next comprises a reciprocable carrier 7 suspended between the ends of two leaf springs 8, 9 and reciprocated by crank means 15, 16. 17. The other ends of the springs 8, 9 are secured to a shaft 12 pivotally mounted to a machine frame 13. Pivotally mounted on the carrier are pairs of workpiece-gripping fingers 2 provided with rollers 24 which engage a guide rail 25. The carrier 7 is also supported by rollers 18 provided on a member 19 hinged to the frame 13 and subjected to an up and down movement by a push-rod 23. When the member 19 is raised, the rollers 24 are pushed against the rail 25 and the pairs of fingers 2 are caused to open. On lowering the member 19 and carrier 7 the fingers close to grip the workpieces by action of tension springs 29. The carrier is maintained in engagement with the rollers 18 by a spring-biased roller 28. The transfer mechanism is specified for a machine for manufacturing bolts, nuts and similar articles.
Patent GB-1533050-A (GB)
Title: Rotary fluid-machine
IPC: F16H47/04
Filed: 1976-07-02
Abstract: 1533050 Rotary positive-displacement fluidmachines BG WHITESTONE and JF SIEBERTH 2 Dec 1976 50335/76 Heading F1F In a machine similar to one of the trochoidal type and adaptable for use as a heat engine, a fluid motor, or a pump the periphery of the piston 14 has portions 19 adjacent the apices 15 that do not engage with the peripheral wall 20 of the casing when the piston rotates, median portions 17 being allowed to come into sealing engagement with said wall periodically during piston rotation. Alternative profiles for the piston and casing are illustrated in Figs. 1, 3, 4, 5 and 6 (not shown), the piston having in each case either two or more than three apices. As shown in Fig. 11 each end of the piston may be provided with channels 25 that co-operate with working-fluid inlet or outlet ports 35 in the adjacent casing end-plate 30. Radial sealing plates 42, 43, Fig. 18, may be lodged in the median portions 17 of the piston's periphery. Two of the machines may be combined so as to form a hot-gas engine operating in accordance with the Stirling cycle, Figs. 13-16 (not shown).
Patent GB-1531250-A (GB)
Title: Method of defoaming effluents and defoaming compositions for use therein
IPC: D21C9/10
Filed: 1975-12-09
Abstract: The antifoaming agent is composed of the components (A) fatty acids, esters or salts thereof, alcohols, phenols, paraffin hydrocarbons or a mixture of such substances, (B) salts or the anhydride of sulphurous acid, and optionally (C) solvent or diluent. The preparation of the agent is carried out by simple mixing of the components. The agent is suitable for foam breaking of any desired aqueous liquids, for example of acidic or alkaline industrial and domestic waste water. When the component (B), in particular the anhydride of sulphurous acid, is added to the component (A) and, optionally, additionally to the component (C), a synergistic antifoaming activity results which greatly exceeds the activity of (A) or (B) alone. Therefore, the concentration applied can be considerably reduced, which has particularly advantageous effects with regard to pollution of waters. When used in wood pulp production, the same wood pulp quality can be achieved with reduced use of chemicals.
Patent GB-1294518-A (GB)
Title: Test kit for use in the determination of uric acid in blood serum
IPC: G01N33/52
Filed: 1970-10-23
Abstract: 1294518 Determination of uric acid PFIZER INC 23 Oct 1970 [19 May 1970] 50588/ 70 Heading B1X A test kit for determination of uric acid in human blood serum comprise (A) a buffered solution of N-ethyl maleimide, (B) a buffered solution of neocuproine, (C) a copper salt solution, (D) uric acid standard solution. Preferred solutions are (A), 0.4% w/v, pH 7.5; (B) 0.04%, pH9; (C) 0.02% copper sulphate solution. In carrying out the test, the sample is mixed with solution (A), solution (B) is added and the mixture incubated, solution (C) is added and the mixture incubated again, then the optical density of the mixture is determined at 450 to 460 m.u.
Patent GB-1486024-A (GB)
Title: Rolling bearing
IPC: F16C35/06
Filed: 1974-11-22
Abstract: 1486024 Bearings SKF INDUSTRIAL TRADING & DEVELOPMENT CO BV 22 Nov 1974 [10 Dec 1973] 50746/74 Heading F2A In a double-row rolling bearing, the pitch circle of one row of rolling elements 10 is of larger diameter than that of the other row 9, and fastening means 15, 17 are provided on the inner and/or outer race ring 2, 3 located between the rows. Seals 22, 23 of combined metal and rubber or plastics may be provided. In a further embodiment (Fig. 2, not shown), a dish-shaped sealing plate of light metal, plastics, or sheet steel is secured to the outer ring and extends across the axial end of the inner ring. The race rings may be made from sheet steel, or powdered and sintered material. The outer ring may carry a radially extending tapped flange on the outermost surface (Fig. 4, not shown).
Patent GB-1521550-A (GB)
Title: Stereophonic demodulator apparatus
IPC: H04H20/89
Filed: 1975-12-11
Abstract: 1521550 Stereophonic demodulators SONY CORP 11 Dec 1975 [16 Dec 1974] 50888/75 Heading H4R A stereophonic composite signal f(t) having a main channel and carrier modulated subchannel(s) is demodulated by plural demodulating signals of which one is of the same frequency as the subchannel carrier and another is an integral multiple of it so that on combination with the main channel, noise components at a harmonic frequency of the carrier are cancelled. Although applicable to two-channel stereo, as described the oscillator 3 of a phase-locked loop 1-6 runs at 228 KHz and is divided down at 4-6 to the 19 KHz pilot frequency of a quadraphonic composite signal F(t). Demodulating signals of 38,76 and 114 KHz and quadrature components S 2 (t), S 5 (t) demodulate F(t) at 11-15 and are combined at 20 with the main channel at 21, 31 after attenuation 16, 17, 31 and inversion 18, 19 to extract the four outputs 22-25 free of noise components at 114 KHz, the third harmonic of a 38 KHz subchannel.
Patent GB-1407268-A (GB)
Title: Process and device for detecting the presence of liquid
IPC: G01N25/48
Filed: 1972-11-03
Abstract: 1407268 Liquid detection device FRANCE ARMED FORCES MINISTER OF 3 Nov 1972 50897/72 Headings GIB and G1S Liquid is detected by providing a composition of a first substance that produces an exothermal reaction with the liquid, and a second substance, the first reaction causing an explosive reaction between the first and second substances which causes an alternative in the conduction through an electrical circuit. In the device shown, a threaded hollow body has a membrane 4, which is soluble in or permeable to the liquid to be detected and covers explosive composition 2 of the two substances, e.g. boron and silver difluoride, which deposits silver on reaction between electrodes 3 and completes an electrical circuit. Alternatively, in Fig.2 (not shown) a fusible wire connecting the electrodes is destroyed by the heat of reaction and breaks a circuit causing higher resistivity after  reaction. The body is screwed in a threaded hole in oceanographic equipment, chemical installations, dams &c. Where water is to be detected with a fusible wire the resistivity of a deposit may be increased by use of an additive or by replacing boron by a metal whose fluoride is not gaseous. A second explosive substance may also be present.
Patent GB-1199189-A (GB)
Title: Electrostatically Focused Microwave Tubes
Inventor: HECHTEL JOHANN RICHARD
IPC: H01J25/20
Filed: 1967-11-09
Abstract: 1,199,189. Velocity - modulated tubes. - VARIAN ASSOCIATES. 9 Nov., 1967 [10 Nov., 1966], No. 51141/67. Heading H1D. In an electrostatically-focused microwave tube in which a beam is projected through a sequence of cavity resonators which share successive common end walls, the electrostatic lenses are mounted in hollow housings which are carried by the end walls and which project into the adjacent resonant cavities. As shown, a klystron having an input cavity 5, output cavity 8, and intervening cavities 6, 7 and 7<SP>1</SP>, has cone-shaped cavity walls 16 to prevent "oil canning", i.e. abrupt changes of configuration with change of temperature. Annular electrostatic lenses 13 are mounted within housings 18 by circumferentially spaced alumina balls 20 which seat in part-spherical recesses in the lenses and in the housings (Fig. 3, not shown). Drift tubes 23 and 24 project into the cavities from the cavity walls and the lens housings respectively to define the successive interaction gaps 24. The walls of the cavities, and the envelope 17, are of copper-clad molybdenum, and each of the cavities is tunable by a plunger 26 mounted on a bellows 29. Coaxial leads 19 for the lenses have their outer conductors connected at both ends to the cavity walls, and the collector 4 is insulated by assembly 31 from the remainder of the tube, to permit depressed collector operation. The cavity walls may be planar rather than conical.
Patent GB-1161561-A (GB)
Title: Improvements in or relating to Positional Displacement Transducer Arrangements
Inventor: RUSSELL ALEXANDER
IPC: G01D5/347
Filed: 1965-08-06
Abstract: 1,161,561. Measuring position photo-electrically. NATIONAL RESEARCH DEVELOPMENT CORP. 8 Aug., 1966 [6 Aug., 1965; 2 Dec., 1965], Nos. 33831/65 and 51257/65. Heading G4H. Apparatus for measuring position, of the type in which a plurality of phase displaced sinusoidal signals is produced photo-electrically by a grating, is provided with means for determining the instantaneous sign of each of the signals and means for decoding the binary outputs of such means to give a digital indication of position. Three photo-cells are provided producing signals with relative phases 0, 90 and 180 degrees which are applied to a potentiometer so that a larger number of signals may be tapped off. For a decimal indication, 10 signals are tapped off between 0 and 180 degrees and applied to Schmitt trigger circuits to give a binary indication of the sign of the signals. The binary signals and their complements are taken in pairs to 20 NOR gates, the pairs being chosen so that only one NOR gate will give an output at a given time and that output will indicate the position of the grating in 20ths of the grating spacing. The output energizes corresponding indicator lamps. To provide higher order digits, encoders are geared to the means moving the grating. The encoders comprise two sets of switches which are operated by cams and serve to energize appropriate indicator lamps using signals derived from the fine positioning device. For a binary measurement, 8 signals are tapped off between 0 and 180 degrees and applied to Schmitt triggers. The binary outputs of the trigger circuits are switched in accordance with the sign of the 0 and 90 degree signals to appropriate parts of an encoding matrix to write the position into a binary store. Higher order digits are derived by a conventional coded track.
Patent GB-1472210-A (GB)
Title: Data transfer apparatus
IPC: G06F5/08
Filed: 1974-11-27
Abstract: 1472210 Skew correction; buffering INTERNATIONAL BUSINESS MACHINES CORP 27 Nov 1974 51355/74 Headings G4C and G4A Data transfer apparatus includes a plurality of data buffer units in each of which the stage of a shift register 26 from which read-out takes place is controlled by an up-down counter 28, which is stepped up by one every time a bit is written into shift register 26 and is stepped down by one every time a bit is read out of the shift register; the count in counter 28 thus represents the position in register 26 of the first which has been written into the register 26 but has not yet been read out by a circuit 17 which detects when all the shift registers 26 contain data. Each counter 28 has one more count state than there are shift register stages, all but a reference count state causing, via a decode circuit 29, a respective one of AND gates A1- A6 of circuit 27 to be enabled to pass the content of the respective shift register stage SR1- SR6 to utilization and control means 15. This apparatus may be used for buffering or in deskewing apparatus, the signals from each track of a magnetic tape 10 being fed to a respective shift register, controlled by a respective up-down counter to ensure synchronized readout of the signals from the different shift registers. The apparatus may be used in either of two modes; in the first mode signals are received as presented and output signals are supplied as available, whereas in the second mode output signals are supplied as requested by utilization and control means 15, and signals are received only when the shift registers 26 have room for them. Overrun or underrun is indicated by monitoring selected counts of the up-down counters 28.