baber/WOPTO huggingface dataset:
Patent GB-616046-A (GB)
Title: Improvements in or relating to the manufacture of condensers of the wound type
IPC: H01G4/32
Filed: 1946-08-22
Abstract: 616,046. Making electric condensers. PHILIPS LAMPS, Ltd. Aug. 22, 1946, No. 25082. Convention date, Nov. 11, 1942. [Classes 83 (ii) and 83 (iv)] [Also in Group XXXVI] Uniting by fusion.- Condensers of the wound type have the over-lapping metal electrode parts A, B connected by bringing them into contact at points 6, 7, 8, with an auxiliary member, having a temperature slightly greater than the melting point of the electrode metal.
Patent GB-654286-A (GB)
Title: Improvements relating to liquid fuel supply systems for gas turbine engines
IPC: F02C7/26
Filed: 1948-09-27
Abstract: 654,286. Gas turbine plant. DOWTY EQUIPMENT, Ltd., and CAREY, F. H. Sept. 27, 1948, No. 25159. [Class 110(iii)] [Also in Group XI] In a fuel supply system for a continuous combustion gas turbine engine there is provided in the supply duct from an engine driven pump to torch igniter nozzles a control valve which is sensitive to pressure from said supply pump to open and permit fuel to reach said nozzles, and which control valve is arranged to close when a predetermined pressure has been created in the supply line to the main burners of the engine. Fig. 1 shows one embodiment of the system with the various parts in the positions they occupy when the engine is at rest. At starting a pump 12 turns with the engine and delivers fuel supplied by'an independently driven booster pump 14 from a tank 15, through a throttle 13, a shut-off valve 20, a circuit control valve 16, and a conduit 23 to an isolating valve 18. The pressure of fuel so delivered opens the valve 18 against the action of a spring 24 So that the fuel'passes via a passage 25, internal passages in the valve member, and conduits 26, 27 to the burners 11 ; and at the same time a valve 19 opens, by the action of a spring loaded piston 28, to allow fuel to pass to torch igniters 22 through a conduit 29 and to charge an accumulator 21. The burners 11 also receive fuel from the booster pump. 14 through a conduit 31, valve 18, and conduits 26, 27 ; and, as soon as a predetermined pressure is built up in the line 27, a trip valve 17 opens to permit fuel to flow through a conduit 32 to shift the circuit control valve 16 against the action of a spring 33, thus cutting off the supply to the conduit 23 leading to the valves 18, 19 so that both the latter will close. Closure of the valve 19 is followed by discharge of the accumuator 21 and then by extinction of the torch igniters 22 ; and closure of the valve 18 disconnects the conduits 31, 26 so that the booster pump 14 now serves solely for priming the pump 12, which now supplies the burners 11 through the throttle 13, shut-off valve 20, control valve 16, and a conduit 35. When the shut-off valve 20 is moved to the stopping position the inlet of the pump 12 is placed in communication with the burners 11 through a conduit 37 and the pump outlet communicates with the tank 15 through a conduit 36. A modified fuel supply system for burners of the spill type, and which includes features of the system described in Specifications the accumulator 21 and then by extinction 654,244, and 654,248. Specification 654,264, [Group XI], also is referred to.
Patent GB-338518-A (GB)
Title: Improvements relating to the manufacture of ketones
IPC: C07C45/39
Filed: 1929-08-19
Abstract: 338,518. Dreyfus, H. Aug. 19, 1929. Ketones.-Aliphatic ketones, particularly acetone, are made by subjecting the vapours of aliphatic alcohols containing at least two carbon atoms, in admixture with oxygen or air to the action of high temperatures, e.g. 250-700‹, in the presence of a catalyst composed of compounds or earth alkali metals, the earth alkali metals being the only metallic elements present. Examples of catalysts are the oxides, hydroxides, carbonates, meta borates, normal-, meta- and pyro-phosphates, and silicates of calcium, barium and magnesium which may be deposited on pumice or kieselguhr. If desired naturally occurring forms of these compounds may be used, such as wollastonite, augite, osteolite, and the calcium borosilicates, danburite and datolite. The gases may be passed through a tube of copper, iron, staybrite or earthenware containing the catalyst, and the vapour of an aliphatic acid such as acetic acid may be added to the gases, in which the oxygen may be greatly in excess of the alcohol. An example is given of the production of acetone from a mixture of alcohol vapour, oxygen and acetic acid vapour.
Patent GB-1189724-A (GB)
Title: Method of Casting Steel Ingots and products therefrom
Inventor: OTANI KOKICHI
IPC: B22D7/04
Filed: 1967-06-01
Abstract: 1,189,724. Coating processes. OTANI KOEI CO. Ltd. 1 June, 1967, No. 25303/67. Heading B3F. In a process of casting metal ingots of uniform thickness, molten steel is poured into a mould and allowed to cool for a predetermined period, determined by the formula t= 1/4b<SP>2</SP>q<SP>2</SP> (2bX 0 -X 0 <SP>2</SP>)<SP>2</SP> where t is the time in minutes, b is the radius in millimetres, q is a constant of solidification, and X 0  is the desired thickness, to form a solid layer on the inside surface of the mould, then the remaining still molten steel is poured off and the ingot further cooled. The process is applied to producing a cupshaped member 7<SP>1</SP> by inverting a mould 9 to pour off excess molten steel, and is also applied to producing a hollow spherical shape (Figs. 4a-4c, not shown), or an indented plate (Figs. 5a, 5b, not shown), produced in a tiltable box-shaped mould. The cup-shaped member 7<SP>1</SP> or a tubular-shaped member may be produced in a mould comprising a central core part (5<SP>1</SP>) (Figs. 6a, 6b, not shown), and a sand lined heat insulated outer wall (11). The cup-shaped or tubular-shaped member may have inside and outside surfaces cut or forged to shape to be shrink fitted on to a roll body (17) (Figs. 8a-8f, not shown), to form a sleeve roll, the member alternatively may be cut into rings that are fitted individually on to the roll body (17) to form a stepped sleeve roll (Fig. 8f). In another process the member may be cut into rings that are subsequently cut and forged into the shape of flanges (Figs. 9a, 9b, not shown).
Patent GB-925333-A (GB)
Title: Porous polyamide compositions, articles, and processes for the production thereof
IPC: C08J3/14
Filed: 1959-07-28
Abstract: A shaped nylon article of 15-40% porosity is obtained by heating, under non-oxidizing conditions, particles of not more than 40m  to a temperature in the range 250 DEG F. up to the melting point, holding at that temperature for up to 1/2 hour, cooling, cold pressing and then sintering under non-oxidizing conditions.  Nylon containing a substantial amount of filler, e.g. calcium carbonate, can be heated at higher temperatures, e.g. above the melting point of the nylon but below that temperature at which a fused mass will result.ALSO:A shaped nylon article of 15-40% porosity is obtained by heating, under non-oxidizing conditions, particles of not more than 40m  to a temperature in the range 250 DEG F. up to the melting point, holding at that temperature for up to half an hour, cooling, cold pressing, and then sintering under non oxidizing conditions.  Nylon containing a substantial amount of filler e.g. calcium carbonate can be heated at higher temperatures e.g. above the melting point of the nylon but below that temperature at which a fused mass will result.
Patent GB-1351573-A (GB)
Title: System for enciphering binary data
IPC: H04L9/06
Filed: 1972-05-31
Abstract: 1351573 Digital transmission; ciphering INTERNATIONAL BUSINESS MACHINES CORP 31 May 1972 [30 June 1971] 25358/72 Heading H4P A block of binary data has a ciphering operation performed on it followed by a non-linear transformation by means of a plurality of substitutions, the blocks then being passed to a means for physically re-arranging the order of the bits within the block. The non-linear transformation means may include a plurality of substitution devices each operating on a sub group of data. A central station may be connected to a number of out stations, which may share time, each having a unique key. A mangler 30 having a number of internal registers receives clear data in serial or parallel form which initially is passed unchanged to a confuser which performs a series of non-linear transformations, e.g. the substitution of 2<SP>n</SP> factorial combinations for n binary inputs. Diffuser 34 merely transposes the position of bits within a block according to a determined interchange, then passes the block to 36 where a plurality of mod-2 additions with selected signals from key 38 are performed. Output is passed back to mangler 30 which executes a further mod-2 addition with the original block. Key 38 controls all cipher operations. The above process may be executed X times. In a preferred embodiment X= 16. The system may include a cyclic shift register shifted one position for each round thus presenting a different combination each time. Interrupter 36 may be located before confuser 32. The operations may be implemented by programming a general purpose computer. An alternative arrangement (Figs. 6A-6F, not shown) a number of substitution devices are reduced to one half in confuser unit 32. A large block, e.g. 128 bits may be sectioned for example into 16 bytes of 8 bits, each byte being ciphered separately and in sequence. An initial mangling operation may also be performed. At a receiver all steps must be carried out in the same order but under the control of an inverse key.
Patent GB-695681-A (GB)
Title: An improved regulator for electrically heated hot plates
IPC: H05B1/02
Filed: 1951-10-31
Abstract: 695,681. Control systems for heating resistors. LANDIS & GYR AKT.-GES. Oct. 31, 1951 [Nov. 4, 1950], No. 25483/51. Class 38 (iv). [Also in Group XXXVII] A hot-plate has heating resistors 2, 3 and is controlled by a cam switch 9 and micro-switch 6 in association with a bimetal member 20 influenced by short-circuited windings 25 of a transformer 23 having a primary winding 24 which is energized from across the resistor 3. For quick heating, or boiling, switch 9 is turned clockwise from the " off " position " O " to position " M," whereby both contacts 1 and 5 are closed and both heating resistors are energized. The actuator rod 19 of the normallyclosed micro-switch 6, in series with heater 3, is clear of the bimetal member 20 in this position of switch 9, even although the transformer 23 remains energized. Rotation of switch 9 in the opposite direction from the " off " position causes only contacts 1 to close, so that heater 3 alone is energized. A cam disc 15, operating between guides 16 causes axial movement of the cam-shaft to an extent dependent upon the degree of rotation. The microswitch is moved bodily, on its resilient support 17, by the camshaft, towards the bimetal member which, upon heating, is able to operate the actuating rod 19 and effect de-energization of heater 3 and transformer 23 until the member 20 again cools, when the switch re-closes and the cycle repeats. The relative lengths of the " on "-" off " periods of switch 6, and thus the average temperature of the heater 3 is dependent upon the degree of rotation of switch 9. The bimetal member is of the form shown to compensate for ambient temperature variations. In a modified arrangement the cam 15 acts directly on the switch 6 instead of through the cam-shaft.
Patent GB-186827-A (GB)
Title: A stand for ricks
IPC: E04B1/72
Filed: 1921-09-27
Abstract: 186,827. Wait, E. Sept. 27, 1921. Crops, storing and preserving; guards for preventing access of insects, vermin, and the like.- The stand comprises a platform of reinforced concrete bars supported upon pillars, the tops of which are provided with guards 3 of metal or reinforced concrete to prevent access of vermin &c. to the platform. The pillars a may be of cast iron or reinforced concrete and the platform is preferably formed of girders d radiating from the central pillar b and joists e, the girders d and outer joists c being fitted into recesses in the tops oi the pillars.
Patent GB-1283315-A (GB)
Title: Preparation of valeric acid derivatives
IPC: C07C67/00
Filed: 1970-05-27
Abstract: 1283315 Valeric acid derivatives ATLANTIC RICHFIELD CO 27 May 1970 [3 July 1969] 25576/70 Heading C2C An ester of 5-cyano-2-acetoximuiovaleric acid or 5-cyano-2-oximinovaleric acid is prepared by reacting 2,6-dioximinocyclohexanone or the monosodium salt thereof with acetic anhydride and a saturated aliphatic primary or secodary monohydric alcohol having 1 to 5 carbon atoms in the absence of a catalyst. Two or more moles of the alcohol per mole of hexanone may be used, the excess being used as solvent, and the reaction is preferably carried out at a temperature of from 60 C. to the reflux temperature of the solution when the hexanone itself is used, although temperatures of from 25 to 60 C. may be employed when the monosodium salt is used as the starting material.
Patent GB-1477304-A (GB)
Title: Rotary transducer
IPC: H02K17/42
Filed: 1973-05-29
Abstract: 1477304 Measuring speed and rotation sense SQUARE D CO 15 May 1974 [29 May 1973] 25587/73 Heading G1N A transducer assembly for determining speed and direction of movement of a rotating shaft 14 forming part of the assembly includes a magnetic core 1 with poles 2, 3, 4. A.C. energized coils 11, 12 are wound series-aiding an opposed poles 2, 3 having faces 5, 6 to provide an alternating magnetic flux through and around the shaft. The shaft is electrically conductive and has a length greater than the maximum distance between the pole faces. When shaft 14 is stationary there is no voltage induced in sensing coil 13 wound on pole 4. However when the shaft rotates the applied and induced flux fields undergo relative displacement so that the resultant leakage flux between poles 2 and 4 is not balanced by that between poles 3 and 4. Therefore a voltage is induced in coil 13 of which the amplitude is dependent on rotation speed and the phase sense depends on direction of rotation. A transducer of enhanced sensitivity utilizing this phase sense dependence is provided by a ring core 1' with an additional pole 18 and sensing coil 19 displaced by 180‹ from the core 4 and coil 13 the two coils being connected series-aiding. In an alternative embodiment Fig. 8 (not shown) the linear speed of the shaft is determined.
Patent GB-791958-A (GB)
Title: Improvements in lenses
IPC: G02B13/00
Filed: 1954-09-03
Abstract: 791,958. Photographic objectives. NAKKEN. T. H. Sept. 3, 1954 [Sept. 10, 1953], No. 25601/54. Class 97(1) The apparent depth of a photograph is improved by the use of a photographic objective comprising a front negative lens, a positive lens, a second negative lens and a rear positive lens, the sum of the powers of the negative and positive lenses being equal and opposite and the intermediate images formed by the several lenses being vertical. The basis of the construction of the objective is described in the Specification and in Specification 791,311 and the Specification contains brief numerical data for one example of the objective shown.
Patent GB-646442-A (GB)
Title: Improvements in or relating to electrical measuring instruments
IPC: G01D11/16
Filed: 1947-09-19
Abstract: 646,442. Indicating - instruments. SANGAMO WESTON, Ltd. Sept. 19, 1947, No. 25612. Convention date, May 6. [Class 106 (iv)] An electrical measuring instrument of the type including a pivotally-mounted moving system disposed with in a hermetically - sealed casing comprises a zero corrector stud which extends through a wall of the casing and is bonded and hermetically sealed to the instrument casing by a thermoplastic material whereby said stud may be angularly adjusted by applying heat thereto to soften the thermoplastic material. As shown, an electrical instrument of the moving-coil permanentmagnet type has a spiral return spring anchored at one end to the staff of the moving coil and at the other end to a plate clamped between two discs with aligned slotted tongues with which a zero adjusting device co-operates. The instrument is mounted in a case, preferably of metal, with a transparent top-plate hermetically sealed to a circumferential lip and the electrical connections to the coil may be made through terminals sealed in glass bushings. A zero adjusting device, Fig. 2, comprises a metal stud 15 of high thermal conductivity such as brass or copper, with a non-circular recess 17 for receiving the correspondingly shaped end of a heated tool, a shank portion 18 extending through an opening 19 in the cover-plate 11 and a disc 20 with crank-pin 21. A washer 23 is soldered to the cover-plate 11 and a resilient washer 25 is clamped between the disc 20 and plate 11 by a screw 22. When the case is sealed off at other than atmospheric pressure, a groove 26 is preferably provided in the undersurface of the stud head 16 and sealing material 27 of low melting point is placed therein and a layer 28 may also be deposited on the upper surface of the washer 23. Initially, the zero position is adjusted by turning the stud 15 so that the crank 21 rotates one end of the return-spring and then a heated tool is applied to the head to melt the solder 27 until it unites with the solder 28 on the washer 23, the heat is then removed and the solder solidifies to hermetically seal the opening 19 and lock the device. Subsequent adjustments may be made by applying a heated tool to the stud. In one modification the washer 23 and recess 26 with its reservoir of solder are omitted and a layer of solder is placed directly between the stud head and cover glass. In a second embodiment the washer 25 is omitted and the opening 19 is made large enough to receive the disc 20, leaving only the crank 21 projecting below the cover glass. A spring washer on the stud shank then presses against the lower face of the washer 23.
Patent GB-293843-A (GB)
IPC: F16K11/056
Filed: 1927-09-29
Abstract: 293,843. Deutsche Werke Kiel Akt.- Ges. July 15, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Mixing valves.-In a valve or tap for regulating supplies of hot and cold water &c., the operating spindle d is formed integrally with a lift valve c co-operating with a seating f in the casing to close the outlet, and with a tubular or sleeve valve h the upper portion of which is provided with ports h', h<2> adapted, when the spindle is depressed, to co-operate with the orifices of hot and cold water supply pipes b', b<2>, the proportions of the mixture being regulated by rotation of the spindle. The port h<1> in the sleeve h is wider than the port h<2> so that hot water can only be supplied mixed with more or less cold water though cold water can be supplied alone. The valve is normally closed by a spring e and fluid pressure under the sleeve h. The operating knob g, which is provided with suitable indications, is limited in its rotation by an arm o on the spindle co-operating with a stop p in the casing. The pressure of the cold water supply in the pipe b<1> may be regulated by throttling means k. The valve can be modified for use with more than two media.
Patent GB-421213-A (GB)
Title: A continuously variable speed gear
IPC: F16H3/44
Filed: 1933-09-18
Abstract: 421,213. Variable - speed gearing; toothed gearing. MADERNA, A., 3 Corso Cristoforo Columbo, and FRANCO, C., 20, Via S. Damiano, both in Milan, Italy. Sept. 18, 1933, No. 25758. [Classes 80 (i) and 80 (ii)] Continuously variable-speed gearing, particularly for motor-cycles comprises superposed plates 22 or rods, slidable transversely between rotatable and laterally-movable concentric rings 19, 20, so as to form on each side, a toothed wheel of variable-pitch, meshing between teeth 6, 10 of a pair of driving bevelwheels 4, 8 and between teeth 13, 18 of a pair of driven bevel-wheels 11, 16, the wheels of both the driving and the driven pairs being each permanently meshed together by additional sets of bevel-teeth 5, 9 and 12, 17 respectively. The bevel-wheel 4 is secured to a driving-shaft 1, driven through a clutch 2, and the bevel-wheel 11 is secured to a driven sprocket 14, freely mounted on the shaft 1. The ring 19 is rotatably mounted in a surrounding cage 23, movable laterally in guides, to vary the speed, by means of an external rod 26. The bevel-teeth which engage the plates 22 have a curved profile and alternate corners of the plates, or all the corners of alternate plates may be cut away as shown in Fig. 4, to improve mesh.
Patent GB-414233-A (GB)
Title: Rubber hose
IPC: B29D23/00
Filed: 1933-09-18
Abstract: 414,233. Hose pipes. MAGYAR RUGGYANTAARUGYAR RESZVENYTARSASAG, 17, Kerepesi-ut, and KLEIN, P., 90, Th÷k÷lyut, both in Budapest. Sept. 18, 1933, No. 25812. Convention date, March 16. [Class 99 (ii).] A hose pipe comprises inner and outer layers 1, 6 of rubber and an intermediate layer 2 of fabric, the latter being reinforced by oppositely-arranged open helical windings 3, 5 of thin metal wire which are separated from one another by rubber 4. The angle of inclination of the windings is preferably about 26À5‹.
Patent GB-317863-A (GB)
Title: Improvements in blade rings for turbines
IPC: F01D5/04
Filed: 1929-08-24
Abstract: 317,863. Ljungstr÷m, F. Aug. 24, 1928, [Convention date]. Addition to 317,485. Blades; oppositelyrunning rotor type. - Blade rings for radial flow turbines arranged to minimize the stresses caused by centrifugal force, as described in the parent Specification, have straight struts c. The invention is illustrated as applied to a radial flow oppositely running rotor type of turbine. The struts c are straight and are provided with strengthening pieces e. The blades r of the inner rotor are of flatter curvature than the blades a of the outer rotor.
Patent GB-169713-A (GB)
Title: Improvements in and relating to transmission mechanism for motor vehicles and the like
IPC: F16H61/02
Filed: 1921-09-29
Abstract: 169,713. Maybach-Motorenbau Ges. Sept. 29, 1920, [Convention date]. Variable-speed gearing.-The change-speed gear and clutch of a motor vehicle are combined in a short casing which forms an extension of the engine crank-case and is also a socket for theball-joint of the torque tube or casing enclosing the propeller shaft. The engine-shaft a carries a pinion k fixed thereon and a loose pinion m which is coupled to the propeller shaft i. Planet pinions o, p are carried by a drum q having expanding rings r, s, by which it can be respectively clutched to the engine fly-wheel c or a fixed casing e; in the first case a direct drive is obtained, and in the second a reduced speed. An extension g of the fixed casing forms a socket for the ball joint h of the torque casing and carries a gear lever x which operates the clutch rings r, s through a sleeve w sliding on the planet carrier or drum, a link y and a three-armed lever v which acts on toggle links t connected to the clutch rings. A spring z holds the lever v in any of its three set positions, i.e. high speed, free-engine, and low speed. The vehicle may be reversed by means of a reversible electric starting-motor acting on a toothed rim d on the fly-wheel.