baber/WOPTO huggingface dataset:
Patent GB-1177484-A (GB)
Title: Improvements in or relating to Electrically Powered Vehicles.
Inventor: SARGEANT ARCHIBALD
IPC: A63H18/12
Filed: 1966-06-08
Abstract: 1,177,484. Electrically-powered vehicles. ROSEMOUNT ENG. CO. Ltd. 23 May, 1967 [8 June, 1966], No. 25611/66. Heading A6S. In a combination of two electrically powered vehicles operating on a track, the vehicles have brushes for picking up electrical power from conductive elements, two power supply sources for applying direct potentials of opposite polarity either alternately to the conductive elements or simultaneously to separate conductive elements, and a means for superimposing an alternating voltage on each of the direct potentials, each having an amplitude less than the direct potential on which it is superimposed, and rectifying means in series with the brushes on each vehicle for accepting current of one polarity only on one vehicle and of the opposite polarity on the other vehicle, and means on each vehicle energised separately by the direct current component and the alternating component of the current through the rectifying means. Each vehicle has a driving motor and a control mechanism such as a steering mechanism one of which is energised by the direct current component and the other by the alternating component. In Fig. 1, an alternating current supply source 12 with 2 half wave rectifiers 13, 14 provides d.c. potentials alternately of opposite polarity between the two track conductors 10, 11. Superimposed on the direct potentials is an alternating potential from a source 19, preferably of higher frequency than the source 12, which is connected via a capacitor 20 and separate adjustable resistors 21, 22 to the inputs of two rectifiers 13, 14. On the vehicle as shown in Fig. 2, brushes 25, 26 are provided to engage conductors 10, 11 and are connected via a half wave rectifier 27 to driving motor 28. In parallel to the motor is an alternating current circuit comprising a d.c. blocking capacitor 29 and an alternating current-operated mechanism 30, typically a steering mechanism. The driving motor is controlled by resistor 17 and the mechanism 30 by the resistor 21. Another vehicle, having the polarity of the rectifier 27 reversed can run on the same track but is separately controlled by resistors 18, 22. In another modification two direct potentials are fed simultaneously to the track which comprises a plurality of conducting members insulated from one another and each vehicle has at least 3 brushes with rectifiers in series with the brushes so that the vehicle is responsive only to the potential from an appropriate pair of conductors.
Patent GB-283644-A (GB)
Title: Improvements relating to high-pressure grease guns
IPC: F16N3/12
Filed: 1926-10-14
Abstract: 283,644. White, A. E., (Duplo Ges.). Oct. 14, 1926. Piston apparatus for discharging receptacles. - In a high-pressure grease gun a collapsable grease container supported laterally by the wall of the gun cylinder is screwed by its threaded neck 8 into the end of a hollow piston rod 5 carrying a conical piston 4 and containing an inner discharge pipe 14 with a flat closed end 16 and discharge openings 15. By rotating a nut 6 the piston is depressed so as to fill the pipe 14 and nozzle 17 with grease, when the end 20 of the nozzle is inserted in the opening to be charged, and the gun depressed to slide on the nozzle 17. The end 16 of the pipe 14 then acts as a piston to discharge the grease from the nozzle, and the gun is returned by the spring 22. A suction nipple., Fig. 5, with openings 29 may be screwed or fitted on the nozzle, whereby liquid such as paraffin may be drawn into, and discharged from, the nozzle 17 without disturbing the grease in the container. An attachment is shown in Fig. 10 for directing the grease at an angle, comprising a nipple 30 screwed to the r.ozzle 17 and adapted to slide over the lubricating point 36, a leather washer 40 being housed in a suitable recess.
Patent GB-227894-A (GB)
Title: Improvements in self-aligning holders for taps, reamers and like cutting tools
IPC: B23B31/08
Filed: 1923-10-15
Abstract: 227,894. Brynildsrud, F. Oct. 15, 1923. Reamers; taps. - A shank is provided for reamers, taps &c. which is sufficiently flexible to allow the tool to align itself with a bore in the work but is rigid enough to transmit axial feed pressure. The reamer 4 is mounted on a pin 11 attached to the flexible shaft 3 and is secured by a screw 15 and a guiding washer 14. The other end of the flexible shaft is attached to a taper shank 2 which carries a loose split sleeve 7 adjusted by a nut 9 and provided with a projection 8 which contacts with a ring 6 attached to the shaft to support it. The shank may consist of a soft core surrounded by one or more layers of tightly wound spiral springs or of spiral springs embedded in india-rubber. The cross-section of the. shank may diminish towards one end to provide increased flexibility.
Patent GB-917749-A (GB)
Title: Preparation of 2,6-di-t-alkylphenoxy boron dihalides
IPC: C07F5/02
Filed: 1961-07-14
Abstract: A process for the preparation of a 2,6-di-t-alkylphenoxyboron dihalide comprises adding a boron trihalide to a mixture obtained by treating an unsubstituted or alkyl- or aryl substituted 2,6-di-t-alkylphenol with a dispersion of an alkali metal in an inert organic solvent, said mixture being at a temperature of -50 DEG C. or below, bringing the reaction mass to a temperature above 0 DEG C., removing solids from the reaction mass and recovering 2,6-di-t-alkylphenoxyboron dihalide from the liquid residue. Many 2:6-di-t-alkylphenols for use as starting materials are specified. The examples relate to the preparation of 2:6-di-t-butyland 2,4,6-tri-t-amylphenoxyboron dichlorides, 2,6 - di - t - butyl-4-methyl- and 2,6-di-t-amylphenoxyboron dibromides.  The use as starting materials of boron trifluoride and triodide in addition to boron tribromide and trichloride is mentioned.
Patent GB-208599-A (GB)
Title: Improvements in and connected with steam generators
IPC: F22B37/22
Filed: 1922-09-22
Abstract: 208,599. Garrett, F. A., and Ransomes, Sims, & Jefferies, Ltd. Sept. 22, 2922. Water-tube boilers; generating by indirect contact of hot waste gases; casings. - In a boiler having upper and lower drums connected by banks of tubes arranged in zigzag or V-shaped formation, as described, for example, in Specification 2847/09, the boiler casing so encloses the tube banks as to form a number of narrow flues through which hot waste gases are passed along the tubes. The casing 6 around the tubes 1 arranged in W formation is made in two detachable parts, which are separately supported by rollers 16 on rails 17. The casing is made of pressed sheet-steel plates lined with heat resisting and insulating material. The gas inlet or outlet pipe 14 at the top of the boiler is secured to a box 13 around the top of the tubes. The side of the box opposite the pipe 14 is open and receives the top part of a casing section. The lower gas inlet or outlet pipe 14 is secured to a frame 35 formed to receive the lower part 32 of the other casing section. The lower drum is placed in a pit open at the ton to receive dust from the flues. A boiler may have several casings which are so connected that the gases pass through them in series or parallel flow.
Patent GB-467656-A (GB)
Title: Improvements in or relating to the manufacture of lactones
Filed: 1935-09-17
Abstract: Lactones are prepared by the catalytic hydrogenation of dicarboxylic acid anhydrides at elevated temperature and pressure in the presence of a hydrogenating metal or metal oxide catalyst activated by an acidic oxide of chromium, vanadium, molybdenum, tungsten, titanium or uranium.  The dicarboxylic acid anhydrides may belong to the aliphatic, aromatic or heterocyclic series; thus R in the formula <FORM:0467656/IV/1> may represent phenyl or naphthyl, or (CH2)n where n = 2, 3 or 4, or cyclohexyl or cyclopentyl, and the anhydrides of phthalic, camphoric, hexahydrophthalic, 3- and 4-methyl-o-phthalic, 3 : 6-dimethylphthalic and 1 : 8-naphthalic acids are specified.  The anhydride may be replaced by the acid in cases in which the anhydride is readily formed within the temperature range.  The preferred ranges of temperature and pressure are 100--450 DEG  C. and 500--5000 lb. per sq. in., and usually an excess of hydrogen is employed.  As hydrogenating metals and metal oxides are mentioned zinc, iron, nickel, cobalt, copper, cadmium, silver, tin, manganese oxide and magnesia. Solvents are preferably present, e.g. hydrocarbons, ethers, esters, or phthalide itself; as hydrocarbons, benzene, toluene, xylene, cyclohexane, methylcyclohexane and dimethylcyclohexane are referred to.  The process may be effected in batches or continuously, and may take place in the liquid or vapour phase. Examples are given of the preparation of phthalide and campholide from phthalic and camphoric anhydrides respectively using a copper chromite catalyst prepared by mixing copper nitrate solution with ammonium chromate solution, neutralizing with ammonium hydroxide, filtering off the precipitated copper ammonium chromate, igniting the dry material at 400 DEG  C. and extracting the product with dilute acetic acid.
Patent GB-1347342-A (GB)
Title: Lens attachment for photographic apparatus
IPC: G03B19/18
Filed: 1971-04-19
Abstract: 1347342 Modifying light actions using index matching liquids: producing stereoscopic effects KENZDOF Inc 19 April 1971 [23 March 1970] 25870/71 Headings G2A and G2J A camera attachment 10, which increases the stereoscopic effect in films 1 taken by the camera, comprises a tubular housing 16 containing a plurality of parallel optically transparent, e.g. glass, solid elements 17 having an index matched liquid, e.g. glycerin, of molecular thickness therebetween. A cap 19 is provided for holding the elements 17 in the housing details in Fig.3 (not shown). A snap ring 18 is provided for fitting over the camera lens barrel 15. The colour in a resultant film is softened as the attachment increase the depth of field.
Patent GB-1160049-A (GB)
Title: Washing and Spin-Drying Machine
IPC: D06F34/08
Filed: 1968-05-30
Abstract: 1,160,049. Washing machines. PHILIPS GLOEILAMPENFABRIEKEN N.V. 30 May, 1968 [2 June, 1967], No. 25966/68. Heading D1A. The circuit of an electric washing and spindrying machine comprises a safety switch G which in "filling position" is connected to the winding E of the water supply valve and the winding C of the drain pump and in "end of filling position" is connected to a parallel circuit comprising in parallel the washing motor winding A and heater D, the winding F of the programme motor being connected between the junction of windings E and C and the switch G in "end of filling" position. The machine is started by turning the knob of the programme device to the first position to close the main switch 1, 2 and during filling, as winding R has a high impedance and winding C has a low impedance, the programme motor will not be driven. When switch G moves to "end of filling" position, the heating element D, motor winding A and programme device F are energized, switch H reversing the motor at intervals.
Patent GB-502366-A (GB)
Title: Convertible seats for vehicles and other purposes
IPC: B60N2/34
Filed: 1937-09-25
Abstract: 502,366. Converting. FERNSEHAKT. GES. Sept. 14, 1937, No. 26002. Convention date, Sept. 14, 1936. [Class 38 (ii)] [Also in Group XL] A cathode-ray tube derives its anode voltage by rectification of the scanning oscillations, the scanning oscillator being arranged to give a fly-back stroke short in duration and of a periodic character, with the object of obtaining a rectified voltage which is large and not greatly dependent on the load presented by the cathoderay tube. The scanning generator may be of the kind employing a valve 4 with its grid and anode circuits coupled to each other by a transformer 1, a third coil 10 being connected to the scanning-coil 11 of the cathode-ray tube. The anode 7 of the cathode-ray tube 9 is connected to the anode of the valve 4 through a rectifier 5, and the cathode 8 of the tube is connected to the valve cathode, a storage or smoothing condenser 6 being shunted across the tube 9. The high positive voltage impulses arising across the valve 4 during the f1y-back charge the condenser 6 and supply anode voltage for the tube. The grid circuit of the tube 4 is rendered oscillatory by arranging that the ratio of the effective grid inductance to the effective grid capacity is less than 4b<4> R<2>, where b is the turns ratio of the transformer and R is the resistance of the cathode-ray tube. The natural period of the grid circuit is less chan twice the fly-back time. Air-insulated disc coils are used in the transformer 1.
Patent GB-1394042-A (GB)
Title: Electron collector having means for reducing secondary electron interference in a linear beam microwave tube
IPC: H01J23/027
Filed: 1973-05-31
Abstract: 1394042 Velocity-modulated tubes VARIAN ASSOCIATES 31 May 1973 [31 May 1972] 26042/73 Heading H1D The collector of a velocity-modulation tubeas described, a klystron-has an end surface 25, 26 which substantially coincides, i.e. departs by less than 15% from, the locus of points equidistant from the constricted entrance of the collector, and arranged such that in operation of the tube substantially all the beam electrons impact the surface 25, 26 rather than the sidewalls of the collector, whereby return of secondary electrons to the interaction region of the tube is reduced.
Patent GB-865308-A (GB)
Title: A process for colouring shaped structures of linear polyesters and the resultant coloured materials
Inventor: SCHOELLIG ALFRED
IPC: C09B25/00
Filed: 1959-07-30
Abstract: Shaped structures such as fibres, flocks, fabrics, felts or foils, of linear aromatic polyesters are dyed or printed with a dyestuff of the formula:-  <FORM:0865308/IV(c)/1> in which X represents a halogen atom or an alkyl, alkoxy, aryl or cyano group and n one of the numbers 0, 1 or 2, at least one n being other than zero.  Dyeing or padding may be effected at 80 DEG -100 DEG C. in the presence of carriers such as benzoic acid, o-hydroxybenzoic acid or their methyl esters, or diphenyl or its 2- or 4-hydroxy derivatives.  Dyeing may also be effected at temperatures above 100 DEG C. under pressure. Prints are subsequently heated or steamed.  Numerous examples are given.  The dyestuffs are made by condensing phthalic acid or its anhydride, amide or imide with 2-methyl-3-hydroxy-quinoline and subsequently introducing the halogen atoms or the above specified groups into the condensate.  Alternatively, one or both constituents of the condensation product may contain the halogen atoms or the above specified groups prior to condensation.
Patent GB-1276080-A (GB)
Title: Making directionally solidified castings
IPC: C30B11/00
Filed: 1971-04-19
Abstract: 1276080 Progressive crystallization UNITED AIRCRAFT CORP 19 April 1971 [28 April 1970] 26151/71 Heading BIS [Also in Divisions B3 and H5] An assembly for making directionally solidified castings comprises a shell mould 10 placed within a bore 8 of a susceptor 6 surrounded by induction coils 2. The susceptor 6 has a varying wall thickness to control heat-loss from the metal cast in the mould and to control heating of the mould. At the base of the mould is a cavity 14 in which is placed a slug of alloy to be cast. The cavity 14 is sealed with a cap 17 and the mould 10 is held in the susceptor 6 by a screw-cap 28. The coils 2 are energised to melt the alloy in the cavity 14. The assembly is inverted and placed upon a chill plate (not shown), thereby pouring the alloy into the article-forming cavity 20, 22, 24 of the mould to form a turbine blade. The induction heating is switched off or reduced and solidification proceeds upwardly from a single crystal-selecting helix 26 (now at the base of the assembly and adjacent the chill plate) into the article-forming cavity 20, 22, 24. Columner grained castings can also be made if the helix 26 is omitted from the mould and a crystal growth zone substituted.
Patent GB-1045402-A (GB)
Title: Core type transformers
IPC: H01F41/02
Filed: 1963-05-20
Abstract: 1,045,402. Transformers. ELECTRONETIC STEEL Inc. May 20, 1963 [Nov. 27, 1962], No. 26177/66. Divided out of 1,045,401. Heading H1T. The matter disclosed in this Specification is exactly the same as that disclosed in co-pending Specification 1,045,401 but the claims are directed to a core-type transformer in which windings are wound on two abutting stacks of laminations each of U-shaped configuration.
Patent GB-176820-A (GB)
Title: Improvements in machines for investigating the balance of rotary bodies
IPC: G01M1/04
Filed: 1920-09-13
Abstract: 176,820. Akimoff, N. W. Sept. 13, 1920. Testing balance of rotary apparatus.-The static and dynamic unbalance of a rotary body are determined by rotatably mounting the body in a support which allows the body to oscillate about two alternate axes provision being made for suppressing the oscillations about either axis, and also for applying - an adjustable known mass for counterbalancing. A frame 6 is hinged at 7 to a base 5 and carries on a table 8 brackets 15, 21 for supporting the body. 19 to be tested. Adjustable springs 12 are provided on either side of the hinges 7 for varying the natural-period of oscillaticn of the frame 6, and adjustable weights 10 may be clamped to rods 9 to vary the moment of inertia' of the frame 6. Screws 14 may be operated to prevent oscillation of the frame 6 when desired. The bracket 15 supports grooved rollers 16 on which rests a flange 17 on the shaft 18 of the body 19. At the other end, the shaft 18 rests on rollers 20 mounted in a bracket 21 pivoted to a base part 23 secured to the table 8. Adjustable springs 24 are provided for varying the natural period of oscillation about the pivot 22, and screws 29 for preventing these oscillations when desired. Adjustable weights 27 are mounted on extensions 26 of the bracket 21 in order to enable its moment of inertia to be varied. The shaft is rotated by a belt from on electric motor 30. For counterbalancing, a carrier. 35 is provided having two screws which are clamped against the shaft 18. In use, the body is mounted as shown with the carrier attached to the shaft. Oscillation about the pivot 22 is prevented by moving the screws 29. The frame 6 and body are now allowed to oscillate about the axis 7 and the carrier is adjusted both angularly and by relative movement of the screws until the dial gauge 42 indicates no vibration. Static balance is then attained. After the body 19 has been treated for this by removal or addition at the requisite place of the correct mass, it is again inserted in the device, vibration about the pivots 7 being prevented. Oscillation is now allowed about the pivot 22 and the carrier adjusted until the gauge 42 indicates no oscillation. The body is then balanced dynamically. Specification 118,657 is referred to.
Patent GB-1310067-A (GB)
Title: Regeneration of mixed-bed ion exchange resins
IPC: B01J49/00
Filed: 1971-04-19
Abstract: 1310067 Ion exchange ECODYNE CORP 19 April 1971 [20 April 1970] 26263/71 Heading B1J A mixed bed of exhausted anion and cation exchange resins is regenerated by separating the resins into a layer of cation exchange resin and a layer of anion exchange resin with some of the cation exchange resin present as contaminant, transferring the anion exchange resin and contaminant resin to a contaminant separation zone in which an aqueous solution of sodium hydroxide with a density between those of the two resins is used to regenerate the anion exchange resin and cause it to float and the contaminant resin to sink. The cation exchange resin is regenerated and transferred to a holding zone with the separated and regenerated anion exchange resin where they are mixed prior to admission to a service zone.
Patent GB-498183-A (GB)
Title: Improvements in or relating to magnesium oxide products and method of making the same
Filed: 1937-09-28
Abstract: Magnesium oxide is ground with a small proportion of silica, shaped, and vitrified at a temperature below the fusing point of magnesia. Suitable proportions are 95 per cent of magnesia to 5 per cent of silica, and the firing temperature is preferably 1400-1600 DEG  C. More silica reduces the refractory properties, and less increases the firing temperature.  To reduce shrinkage, the magnesium oxide may be mixed with a portion of the silica, say 2 per cent, fired, ground with the remainder of the silica, shaped, p  and again fired.
Patent GB-245881-A (GB)
Title: Improvements in or relating to pneumatic cushions, seats, beds, upholstery and the like
IPC: A47C27/08
Filed: 1924-11-05
Abstract: 245,881. Moseley & Sons, Ltd., D., and Bermingham, G. E. Nov. 5, 1924. Mattresses and cushions. -In an air cushion or the like wherein the surface comprises a number of closely assembled separate tubular sections or compartments 4, a number of small orifices 5 or tubes 7 connect the adjacent sections at intervals to permit a restricted flow of air between the compartments when in use. The tubes may lie side by side and be connected throughout their length as shown in Fig. 1, or they may be joined at intervals by the connecting tubes 7 as shown in Fig. 3. End tubes 8 at right angles to the others are optional.
Patent GB-864862-A (GB)
Title: Improvements in and relating to engine governing mechanism
IPC: G05D13/00
Filed: 1956-08-29
Abstract: 864,862. Speed governors. BROWN BROS. & CO. Ltd., and FISHER, D. A. Aug. 12, 1957 [Aug. 29, 1956], No. 26450/56. Class 57. The spindle 2 of the governor valve 1 of a fluid-pressure engine is pivotally connected at 4 to one end of a floating lever 3 which is also pivotally connected at points 5 and 6 to the governor mechanism and to an independent control means 16 respectively. The governor mechanism, which is pivotally connected to the lever 3 through linkage including a spring-loaded link 10, controls the valve 1, during normal operation, by rocking the lever about the pivot 6. The valve may be independently opened or closed by the control means 16 which, through links 14 and 15, moves a bar 13 having a cam slot 12 engaging a roller 19 on the lever 3 at the point 6 to cause the lever to pivot about the point 5. An adjustable by-pass valve 20 allows slow running of the engine with the governor valve 1 closed. Specification 556,448 is referred to.
Patent GB-1425004-A (GB)
Title: Explosive connection of plates to pipes
IPC: F16L41/00
Filed: 1974-06-14
Abstract: 1425004 Welding by pressure ULTRA CENTRIFUGE NEDERLAND NV 14 June 1974 [15 June 1973] 26477/74 Heading B3R In welding a pipe 2 to a plate 1, an end of the pipe is pressed against one face of the plate, an explosive charge 3 is positioned opposite the end of the pipe and close to or in contact with the other face of the plate and the charge is detonated. The plate, in an embodiment, has an opening 4 with a diameter equal to or smaller than the internal diameter of the pipe and the charge is located on the plate opposite the pipe. A prior art method is described in which the pipe is positioned within the opening and the charge is positioned within the pipe end.