baber/WOPTO huggingface dataset:
Patent GB-172758-A (GB)
Title: Improvements in and relating to thermionic generators, amplifiers and the like
IPC: H03F1/36
Filed: 1920-09-24
Abstract: 172,758. Taggart, J. Scott-, and Radio- Communication Co., Ltd. Sept. 24, 1920. Thermionic relays. - A thermionic valve arranged either as a generator or as a retro-active amplifier has its grid connected to an intermediate point of a high resistance shunted across the whole or a portion of an oscillatory circuit, which is associated with the anode circuit of the valve. As shown in Fig. 1, the oscillatory circuit CL connected between the plate and filament of the valve V has a resistance R which may be of 50,000 ohms, shunted across it. A tapping T, connected to the grid G is taken from a point on the resistance R, which point is chosen so as to give the correct phase of grid potential for retroaction. In the example shown, the tapping should be taken from the left-hand half of the resistance. The further the tapping-point is from the centre, the greater the retro-action, until a point is reached at which oscillations are sustained.
Patent GB-468428-A (GB)
Title: Improvements in the treatment of textile yarns and the manufacture of belts therefrom
IPC: D06M15/693
Filed: 1935-10-03
Abstract: Yarn for the manufacture of driving and conveyer belts is rubberized by passage through a sequence of baths of compounded rubber latex, the twist being taken out of the yarn temporarily whilst so passing, and the yarn being subjected to mechanical treatment during or subsequent to each treatment with latex, as by passage over guide bars or rollers, or between squeeze rollers. The yarn may be of cotton, ramie, wool, hair, silk, &c.  The baths are preferably of increasing concentration, and between each bath the yarn may be partly dried; before entering the first latex bath, the yarn may be treated with a wetting agent, and then partly dried.  Prior to coagulation as by acetic acid, the latex-impregnated yarn is preferably rendered uniform and smoothed by passage through a die; and finally the yarn is washed, dried, and passed through a mass of zinc stearate or treated with an alcoholic solution of stearic acid. During the treatments, by the use of grooved rollers distortion of the yarn is prevented.  After weaving the yarn into a belt, the latter is coated or impregnated with rubber or rubber latex by passage through baths, or by treatment in a closed vessel, impregnation being assisted by the application of a vacuum with or without subsequent application of pressure; and finally the belt is vulcanized.
Patent GB-987103-A (GB)
Title: A process and apparatus for orienting and compacting a quantity of magnetic powder
IPC: H01F41/02
Filed: 1961-07-27
Abstract: 987,103. Moulding magnets. GENERAL ELECTRIC CO.: July 27, 1961 [Aug. 30, 1960], No. 27282/61. Heading B5A. Also in Division H1. A magnet is formed by grinding to a powder a solid consisting of elongated magnetic particles in a matrix (e.g. lead or lead alloy) and compressing the powder in a die under the influence of a direct and an alternating magnetic field which are applied simultaneously for at least part of the time. As shown, A.C. windings 8 and D.C. windings 9 produce orthogonal fields between pole pieces 6 and 7, the-fields being perpendicular to the direction of compression. In an alternative arrangement the D.C. windings are on the die punches. Lubricants such as water, ethyl glycol, glycerine and dry powder lubricants may be added before compaction. The solid may be prepared by the methods disclosed in Specification 815,919.
Patent GB-1179826-A (GB)
Title: Non-Flocculating Pigment Preparations and Processes for their Manufacture
IPC: C09D101/18
Filed: 1968-06-07
Abstract: 1,179,826. Pigmented nitrocellulose; synthetic resin lacquers. CIBA Ltd. 7 June, 1968 [16 June, 1967], No. 27317/68. Headings C3F and C3R. A non-flocculating dry pigment preparation contains, in intimate admixture, a finely divided organic pigment and not more than 20 parts of nitrocellulose for each 100 parts of the pigment, optionally with another organic polymer or plasticizer. It is prepared by mechanically working the components, optionally in the presence of a salt and/or a solvent, both of which are preferably water-soluble, e.g. NaCl, KCl, Na 2 SO 4  or BaCl 2 ; and acetone, methyl ethyl ketone or ethylene glycol monoalkyl ethers. The product may be recovered by precipitation, e.g. with water. A nitrocellulose containing 10À5-12À5% N is suitable. In examples the additional polymer is a polyamide of a polymeric fat acid or ethyl cellulose and the plasticizer dibutyl phthalate. Exemplified pigments are of the azo, dioxazine, nitro or phthalocyanine series; other types are specified. The product may be used in lacquers which, in examples, contain TiO 2 , acrylic, alkyd, melamine or ketone-formaldehyde resins, mineral oil, methyl isobutyl ketone, and/or other conventional solvents/plasticizers.
Patent GB-880280-A (GB)
Title: Steering-responsive control for locking a vehicle differential
IPC: F16H48/30
Filed: 1960-08-08
Abstract: 880,280. Differential locking gear; controlling vehicles. GENERAL MOTORS CORPORATION. Aug. 8, 1960 [Sept. 14, 1959], No. 27381/60. Classes 79(2) and 79(5). The differential gear of a vehicle is locked when the hydraulic steering gear is in the neutral position and is unlocked by a steering movement. The hydraulic steering gear comprises a pair of jacks 16 and 18 controlled by a valve 8, the fluid supply line 4 from reservoir 2 including the pump 20, an accumulator 24 and a check valve 22. A return line 6 is provided. The differential gear locking clutches are controlled by pistons 42 and 44 supplied with fluid through a conduit 40 from a valve 26. Pressure fluid is supplied to the valve 26 through the conduits 28 and 30 taken from either side of the check valve 22. A third supply is through a reducing valve 34 and conduit 32. Conduits 36 and 38 return from valve 26 to the reservoir. The valve 26 comprises a shuttle 62 urged towards the left by a spring 76 and provided with "lands", a drain passage 72 and a through passage 66. When the steering valve is in the neutral position, the fluid pressure in pipes 30 and 28 and through passage 66 is equal and the shuttle is in the left-hand position, whereby pressure fluid from the pipe 32 passes into the pipe 40 and maintains the differential gear in a locked position. Upon a steering movement, pressure fluid passes into the steering supply conduit and the pressure in the pipe 30, due to the differential across valve 22, is diminished. The shuttle 62 of valve 26 then is moved to the right and the pipe 40 is connected to the pipe 38 and reservoir, unlocking the differential clutch gear. To obtain a high pressure differential across valve 22, the valve 22 may be loaded to a pressure higher than that normally used in the steering system. Fluid leaking past the shuttle is returned to the reservoir via passages 68. 70 and 72.
Patent GB-867626-A (GB)
Title: Improvements in cigarette dispensing and lighting appliances
Inventor: ZAIDENER JACOB
IPC: A24F15/10
Filed: 1957-08-30
Abstract: 867,626. Cigarette lighters. NOVELECK MECHANICAL COMPONENTS Ltd. Aug. 30, 1957, No. 27399/57. Class 75(3). [Also in Group XVII] A cigarette dispenser and lighter has a compartment to accommodate a stack of horizontal cigarettes and defined by the side flange 6 of a front lid 4 and an adjustable angle-section strip 9, a cigarette support 7 an adjustable, electric resistance igniter 11 and a push button switch 22 for the igniter the inwardly extending portion of the switch button 24 serving to press the lowermost cigarette against the igniter. The apertured lid 4 is hinged at 2a, 3a to a back plate and the strip 9 is adjusted by a clamping screw 12 in a slot 11 to suit the length of the cigarettes. The igniter 11 is secured by terminal screws 12, 13 and insulators 14, 15 to the vertical limb of a cranked bar 16 carrying a knurled headed clamping screw 17. An alternative arrangement of igniter is described wherein a feed screw is provided to adjust the igniter and conductor strips replace leads 20, 21 within the igniter compartment. Screw holes are provided in the back plate for securing the dispenser to a support. Specification 808,738 is referred to.
Patent GB-1144595-A (GB)
Title: An improved ironing board cover
IPC: D06F83/00
Filed: 1966-06-20
Abstract: 1,144,595. Coated glass fabric. DOW CORNING CORP. 20 June, 1966 [15 July, 1965], No. 27500/66. Heading B2E. An ironing board cover comprises glass fabric coated with a cured silicone rubber containing 1 to 100 parts per 100 parts of the silicone rubber of a particulated inorganic filler, having a surface area of less than 50 .square metres per gram. 15 to 50 grams of .silicone rubber per square metre is used, being preferably of the more heat stable silicones eg: dimethylsilicone, phenyl-methylsilicone or trifluoro propylmethyl silicone or co-polymers thereof with e.g. vinylmethyl silicone, diphenylsilicone, ethylmethyl silicone or halophenyl-methyl silicones. The fillers have an average particulate diameter of at least 40 mÁ and may be fume silica, silica aerogels or precipitated silicas. The rubber can be applied by calendaring, knife coating, dipping or spraying and vulcanisation may be carried out by X-rays or high-speed electrons or by peroxides or siloxane condensation catalysts e.g. carboxylic acid or salts of lead tin, iron or colsalt and titanate esters e.g. tetrabutyl titanate and platinium compounds such as cloroplatinic acid. Cross-linking agents such as alkyl silicates or siloxanes containing Si H groups may be included. One component room temperature curing silicone rubbers can be used. In an example various glass fabrics were coated with the following composition:- 1. 83.5% of an xylene solution containing 30% of a mixture of 100 97% of a dimethyl polysiloxane gum 3% of methylhydrogen siloxane 10 parts calcium carbonate filler. 2. 2% of a 50% xylene solution of dibutyltin of di-2-ethyl hexoate 3. 0.1% glacial acetic acid 4. 14.4% xylene. The solution was knife coated into the glass fabric which was air dried and cured for 5 minutes at 190‹C. In another example, the calcium carbonate was replaced by 10 parts of diatomaceous earth.
Patent GB-1208878-A (GB)
Title: A share support for use with a seed drill
IPC: A01C5/06
Filed: 1969-05-30
Abstract: 1,208,878. Share support. AMAZONENWERKE H. DREYER. 30 May, 1969 [28 June, 1968], No. 27530/69. Heading A1D. A share support 1 for use with a seed drill comprises a lever 10 pivotably mounted on the share 4 and a support runner 11 which, in the raised position of the share, is located directly below the share seed outlet 7 so that seed hits the runner 11 and is distributed over the ground. In the soil engaging position of the share the runner acts as a furrow closing member. The adjustable spring 13 allows a further position to be taken up in which the runner is inoperative.
Patent GB-1174249-A (GB)
Title: Cable Cutting Apparatus
Inventor: MAYO HARRY
IPC: H01B15/00
Filed: 1966-06-21
Abstract: 1,174,249. Shearing cables. H. MAYO. 19 June, 1967 [21 June, 1966], No. 27657/66. Heading B3W. [Also in Division H2] In a cable-cutting machine, a cable 11 is fed by serrated guide rollers 12-20, to pressure rollers or wheels 22, 23, 24 which, respectively, press the cable into a groove (38) on the block (39), press the cable against a circular blade 41 which makes an incision, and hold the cable against the wedge-like edge of a disc 43 which widens the incision. The top rollers, pressure rollers, blade and disc are adjustable to accommodate different gauge cables. Disc 43 may be replaced by a wedge.
Patent GB-408313-A (GB)
Title: Improvements in or relating to hydrating reactions
IPC: C07C29/04
Filed: 1932-10-05
Abstract: Catalysts for the hydration of olefines comprise ferric metaphosphate together with the metaphosphate of a divalent metal such as magnesium, cadmium, alkaline earth metals, ferrous iron, copper, or nickel.  The proportions may be one or two molecules of ferric metaphosphate to one molecule of the divalent metal metaphosphate. In an example, one molecular proportion each of ferrous oxalate and ferric oxide are treated with 8 molecular proportions of aqueous orthophosphoric acid, and the mixture is evaporated to dryness and heated up to 300 DEG  C.ALSO:The hydration of olefines is effected in the presence of catalysts which comprise ferric metaphosphate together with the metaphosphate of a divalent metal such as magnesium, cadmium, alkaline earth metals, ferrous iron, copper or nickel.  The proportions may be one or two molecules of ferric metaphosphate to one molecule of the divalent metal metaphosphate. The hydration reaction is preferably effected in the vapour phase, for instance at 250--300 DEG  C. and 100 atmospheres pressure or more, and the olefine is preferably in large excess.  In an example, one molecular proportion each of ferrous oxalate and ferric oxide, are treated with 8 molecular proportions of aqueous orthophosphoric acid, and the mixture is evaporated to dryness and heated up to 300 DEG  C.  Ethylene and steam at partial pressures of 70 and 30 atmospheres respectively are passed over this catalyst at 290 DEG  C.
Patent GB-1332823-A (GB)
Title: Variable speed transmissions
IPC: F16H61/02
Filed: 1970-10-12
Abstract: 1332823 Variable ratio gearing KLOCKNERHUMBOLDT-DEUTZ AG 12 Oct 1970 [11 Oct 1969] 27705/73 Divided out of 1332822 Heading. F2D A variable ratio transmission comprises a main gearing (8) Fig. 1 (not shown) whose ratio is changeable by a manual control member (28), in series with an auxiliary two-ratio "splitter" gearing (2) controllable electrically by a pair normally open single-pole switches 86, 87, 91, 92 for each main gearing ratio position of the member (28), which selectively operates the switches of each pair as it enters and leaves the respective position so that the auxiliary gearing is moved to its lower gear when the main gearing is raised to a higher gear. The auxiliary gearing may incorporate hydraulically actuated clutches (4, 6) controlled by a solenoid valve 33. The valve 33, solenoids 37, 38 may also have a manual-control switch 79 which is taken out of circuit when a button 75 on the member (28) is depressed to put the switches 86, 87, 90, 91 into circuit with a voltage source 51.
Patent GB-957591-A (GB)
Title: Improvements relating to electric illumination devices
Inventor: MOSS ARTHUR WILLIAM
IPC: F21V9/40
Filed: 1962-07-19
Abstract: 957,591. Imitation solid-fuel fires. H. FROST & CO. Ltd. April 26, 1963 [July 19, 1962; Aug. 9, 1962], Nos. 27726/62 and 30482/62. Headings F4R and F4W. An imitation electric fire includes lamps 4 with flicker producing devices 5 and a viewing screen 9 which comprises a transparent or translucent panel 10 provided with a multiplicity of closely adjacent, thin, substantially horizontal, broken or unbroken lines which extend from one side of the panel to the other. A reflector 8 serves to reflect the flickering light from the lamps 4 through the screen 9. An imitation fuel moulding 3 is mounted above a heating element 1 and a heat reflector 2. The flicker devices 5 comprise apertured spinners 6 pivotally mounted on brackets 7. The lines are formed on panel 10 by abrading, scratching, etching or moulding, and may be wavy in form. The viewing screen 9 has a corrugated horizontal cross-section so that a plurality of forwardlypresented convex portions 13 are formed. The reflector 8 also has a corrugated horizontal cross-section, and may be coated with a suitable lacquer to give a more realistic flame effect. It is stated that the screen 9 may have only one forwardly presented convex portion spanning its whole width, or it may be flat.
Patent GB-638825-A (GB)
Title: Improvements in or relating to liquid power transmission mechanisms
IPC: F15B7/08
Filed: 1946-09-16
Abstract: 638,825. Hydraulic machines. ARON, E., and BANNING, A. J. Sept. 16, 1946, No. 27732. [Class 69 (ii)] [Also in Groups XXVIII and XXXI] In a liquid power transmission mechanism comprising a multi-cylinder reciprocating piston pump 10 having a driving shaft 13 rotatable in either direction and driving pistons 31 in the pump cylinders 11, a double-acting piston motor 8, connecting conduits 46, 46a, a valve member 15 rotatable in a casing having a port 36 communicating with each cylinder and two ports 37, 37a communicating with opposite ends of the motor cylinder, the valve member is driven by the driving shaft 13 and is arranged to connect the ports 37, 37a alternatively to each cylinder so that as each piston moves in one direction each cylinder is connected directly to one end of the motor cylinder while when it moves in the opposite direction it is connected with the other end of the motor cylinder, the pistons being so driven that at all times the total displacement of the pistons moving in one direction is equal to the total displacement of the pistons moving in the other direction, whereby the liquid introduced into one end of the motor cylinder is equal to that withdrawn from the other end. The pump pistons are driven by a swash member 17, the inclination of which is varied by adjusting a screw member 24 to alter the position of a ball 28. Air entering the system is forced out of bleed-holes 35 in the pump pistons into the reservoir 16. Leakage of oil is replenished from the reservoir via a non-return valve leading to a passage 41 in the pump casing and axial groove 42 in the valve member.
Patent GB-507278-A (GB)
Title: Apparatus for sterilizing tooth-picks and similarly shaped instruments for removing residues of food from the teeth
IPC: A61C19/00
Filed: 1938-09-23
Abstract: 507,278. Teeth-cleaning appliances; sterilizing tooth-picks. ECKERT, C. Sept. 23, 1938, No. 27738. [Classes 81 (i) and 81 (ii)] Apparatus for storing and sterilizing tooth-picks comprises a case a and lid b having pads h, k which contact with each other when the lid is closed thus gripping the useful ends of the tooth-picks, the pads being saturated with disinfecting liquid from a compartment f by means of a. wick i. The case may be rectangular and be held closed by a lug d fitting over a pin e, which compresses the' rubber packing c round the edge of the case. Alternatively the container for the disinfectant may be formed by a horizontal partition in the case the lower division being filled from the back. An example of a suitable disinfectant is a 5 per cent solution of boric glycerine in alcohol.
Patent GB-1142727-A (GB)
Title: Gas directing device
IPC: F16K11/02
Filed: 1966-06-22
Abstract: 1,142,727. Deflecting propulsive jets. M.A.N. TURBO G.m.b.H. 22 June, 1966 [24 June, 1965], No. 27889/66. Heading B7G. [Also in Division F2] A rotary conical valve for a gas turbine engine directs the gas from an inlet 3 to one or other or both of two outlets 4, 5. The valve member is constructed with circular end members 10, 12 joined by two straight inclined walls 13 at opposite sides. A third wall 14 joins the two side walls at portions 15 which seal on strips 16 of the casing. The fourth side of the plug in the position shown is open to the outlet 5. A cascade of hollow guide blades 17 allows the pressure to equalize on the outer sides of the walls 13, there being a balance chamber 21 on one side. Pressures on the wall 14 are also equalized through a passage 20 and a balance chamber 22. There are further balance chambers 24, 27 at opposite ends of the valve member, which communicate with the flow passage. The diameter of the operating stub shaft at the top may be varied to adjust the balancing so that the valve is seated by the fluid pressure. Operation of the shaft may first raise the valve member from its seat before turning it. In a modification, Figs. 6 to 8 (not shown), the valve has two outlets (30) inclined at an acute angle in axial direction and a third outlet (31) provided with guide vanes 32.
Patent GB-975419-A (GB)
Title: Fractionation control system
IPC: B01D3/42
Filed: 1961-08-01
Abstract: 975,419. Control of fractional distillation. FOXBORO CO. Aug. 1, 1961 [Aug. 8, 1960], No. 27912/61. Heading B1B. In the separation of a liquid mixture, by continuous distillation in fractionating column 10, into a distillate and a bottoms fraction, the composition of either fraction is maintained constant irrespective of changes in the composition of the feed-mixture by a control system comprising an analyser 27 for determining the composition of the feed mixture, measuring means 28 for determining the enthalpy of the feed, a computer 29 responsive to the analyser and the enthalpy-measuring means, and an adjustable heater 15, disposed between the analyser and the enthalpy-measuring means and controlled by the computer, for changing the enthalpy of the feed whereby the vapour flow in the upper part of the column, or the liquid flow in the lower part of the column, is automatically adjusted to give the desired product. The feed to the column may be wholly in the liquid state or it may be a mixture of liquid and vapour. In the system shown, the adjustable heater 15 is a heat-exchanger which is supplied with steam through a control-valve 17 operated by a signal from the computer. Analyser 27 may be a chromatographic instrument. The measuring means 28 may effect measurement of the temperature and the pressure of the feed. When the feed is wholly in the liquid state, the enthalpy may be computed from a knowledge of the composition of the material and its temperature. In order to ensure that the composition of the liquid on the feed tray is substantially equal to the composition of the feed, a selector unit 32 supplies the feed to any one of a selected series of trays 33, 34, 35 and 36. The composition of the liquid in each of these trays is automatically analysed, and the information is transmitted to computer 29 which sends an appropriate signal to the selector 32. The rate of flow of the feed to the heatexchanger 15 may be controlled by an automatic valve controlled by the computer. The reflux and reboiler systems of the column may be controlled by the computer on the basis of information from analysers for the distillate and bottoms product. If desired, the analyser for the distillate, and/or the analyser for the bottoms product, may be used to vary slightly the set point on the enthalpy controller. Data are given relating to the fractional distillation of a mixture of ethylene and ethane.