baber/WOPTO huggingface dataset:
Patent GB-454544-A (GB)
Title: Improvements in or relating to lead-in constructions for thermionic valves, and likeelectrical apparatus
IPC: H01J5/42
Filed: 1936-03-24
Abstract: 454,544. Mounting terminals. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.-(Assignees of Smith, N. R. ; 26, Johnson Avenue, Bloomfield, New Jersey, U.S.A.) March 24,1936, No. 8807. Convention date, April 2, 1935. [Class 38 (i)] [See also Group XL] A thermionic valve is provided with a metal envelope 1 which has an aperture fitted with a tubular eyelet 3 in which a leading - in wire is sealed by glass 4. A flanged metal cup 6 is welded or brazed to the envelope and supports through an insulating disc 8 a thimble-shaped terminal 10 to which the leading-in wire is soldered at 12. The thimble is secured to the disc by flanges and, in other forms, the disc may be spaced from the envelope by a flange thereon, a metal ring or by projections on the base of the cup 6.
Patent GB-1142632-A (GB)
Title: Improvements relating to weighing apparatus
Inventor: INSHAW MICHAEL WILLIAM
IPC: G01G3/145
Filed: 1965-03-02
Abstract: 1,142,632. Measuring weight electrically. W. & T. AVERY Ltd. June 2, 1966 [March 2, 1965], No.8813/65. Heading G1N. In weighing apparatus where two sets of one or more parallel connected strain gauge load cells are used to sense the weight of a load, the total output of the cells resulting from an asymmetrically placed load will produce an output different from that produced by the same symmetrically placed load, because of the non linear dependency of the strain gauges on load. To compensate for this effect a correction is applied to the total output which is dependent on the difference in output from the two sets of cells. As shown the voltages developed across two parallel arrangements of bridges LC1, LC2 and LC3, LC4, is fed through two high input impedance differential amplifiers to a summing network, where they are compared. The output from this network is then fed through an amplifier and rectifier which produces a D.C. output signal proportional to the difference between the original input signals, to a D.C. to A.C. generator, e.g. as described in Specification 1,142,631, which produces an A.C. output signal of amplitude proportional to the D.C. input voltage. The output signal from this generator is then fed via a variable gain amplifier, to a signal isolating transformer and an attenuation network, whose output is supplied across a resistance R1 in series with the load cells and an indicating instrument W, to develop a voltage V1 across it, designed, by means of the attenuation network, to compensate the total output voltage from the load cells for any effects due to asymmetrical placing of the load on the platform. The compensating circuit may also be applied to weighing apparatus having only two load cell bridges in series or two sets of two or more load cell bridges connected in parallel.
Patent GB-101207-A (GB)
Title: Process for Regenerating Base Exchanging Substances.
IPC: C01B33/46
Filed: 1916-06-23
Abstract: 101,207. Staten Island Chemical Corporation, (Assignees of Foster, W. C.). Aug. 19, 1915, [Convention date]. Double silicates.-Base-exchanging substances, such as sodium zeolites, are regenerated after use by treating with a solution of a salt such as sodium chloride, washing to remove soluble chlorides, treating with the hydroxide of the corresponding base, for example sodium hydrate solution, and, if desired, again washing. Baseexchanging substances which, after repeated regenerations by salt solutions, have become inactive are treated with a solution of the hydroxide of the corresponding base, for example sodium hydrate. When the base-exchanging substance contains more than one exchangeable base, the regenerating-reagents correspond with one or more of such bases.
Patent GB-1381945-A (GB)
Title: Gun
IPC: F41A27/06
Filed: 1972-02-25
Abstract: 1381945 Gun and sight arrangement BOFORS AB 25 Feb 1972 [26 Feb 1971] 8891/72 Heading F3C A gun which is arranged to be aimed at a target comprises a barrel, a gun sight coupled to the barrel so that its line of aim is in fixed alignment with the line of the barrel, common servo driving means for moving the barrel and sight together, aiming 7 and rangefinding 8 means controllable by a gunlayer for producing aiming and range signals, and a tracking unit 11 adapted to produce signals for controlling the servo driving means and having two phases of operation. The tracking unit is arranged in its first phase of operation to produce signals in dependence on the aiming and range signals such that the controlling signals represent the behaviour of the target as sensed by the gunlayer and is arranged in its second phase of operation to maintain a predetermined function of the controlling signals constant so that the controlling signals represent a predicted behaviour of the target. The servo-driving means consists of two servo motors 1, 2 for rotating the gun and sight which may be mounted together or connected via mechanical linkage in elevation and azimuth respectively. The aiming means 7 provides in polar co-ordinate form the co-ordinates LVr and SVr and the rangefinding means 8 the range r m  and these values together with the slant range signal rl derived from the servo-driving means are fed into the tracking unit 11 in which the polar coordinates are converted to Cartesian coordinates. In the tracking unit 11 each coordinate is integrated to produce the velocity components of the target which in the second phase of the tracking unit operation remain constant. At or after the changover from the first phase to the second phase aim off correction signals X t , Y t , Z t  are added by means of adders 10a, 10b, 10c respectively to the constant signals x m , y m , z m . The signals x k , y k , z k  so produced are used to control the servomotors 1, 2. Error signals e hv  and e sv  are produced by resolvers 3, 4 mounted on shafts controlled by the servomotors and are fed through amplifiers 5, 6 to the respective servomotors. The time of flight of a projectile is calculated using the alert range signal r e  correction values corresponding to varying muzzle velocities of projectiles and varying atmospheric conditions being fed into the time of flight calculator (Figs. 4, 5, not shown). If the gun is to be mounted for aiming in training and elevation a coordinate converter in the tracking unit requires two resolvers (Fig. 3a, not shown) whereas if the gun is to be mounted for training or elevation only the co-ordinate converter requires only one resolver (Fig. 3b, not shown).
Patent GB-911180-A (GB)
Title: Supercharged two-stroke internal combustion engine
IPC: F01M9/12
Filed: 1961-03-10
Abstract: 911,180. Lubricating. SULZER FRERES S.A. March 10, 1961 [March 18, 1960], No. 8941/61. Class 7(2) [Also in Group XXVI] A supercharged two-stroke engine in which air is supplied through piston-controlled scavenging ports 5, Fig. 1, has at least one oil scraper ring 11 disposed at the lower end of the piston 2 and at least one ring 12 having a controlled air leakage path disposed above the oil scraper ring 11 and which does not reach the ports 5 at any point of the working stroke of the engine. The ring may have a controlled air leakage path in the form of peripheral grooves 21, Fig. 3, or grooves 23, Fig. 4, in both or either of the upper and lower plane surfaces of the ring 22. In another form of controlled leakage ring a normal double knife edge oil scraper ring 25, Figs. 5, 6 is provided with uniformly distributed grooves 26 in the lower knife edge to provide an air leakage path inwardly across the upper plane surface and outwardly through the oil apertures of the ring between the two knife edges to communicate with the grooves 26.
Patent GB-1218438-A (GB)
Title: Improvements in or relating to the manufacture of foamed articles of thermoplastic materials
Inventor: HIROSE TOKIHIKO
IPC: C08J9/14
Filed: 1968-02-23
Abstract: 1,218,438. Extruding foamed resins. JAPAN STYRENE PAPER CORP. 23 Feb., 1968, No. 9008/68. Heading B5A. [Also in Divisions B1 and C3] In the production by extrusion of foamed thermoplastic resins, the resin with additives, e.g. cell size control additives, pigments, flame retardants, static preventing agents, is fed to a space 7 in barrel 2 where it is plasticized, the compressive forces on the resin increasing from the hopper in the downstream direction to a maximum at or downstream of a feed port 6 where a liquid foaming agent is injected into the plasticized resin, the pressure of the resin at the point of injection being greater than the critical pressure of the foaming agent. As shown, the compressive forces are increased by increasing the diameter of the core of screw 3. Alternatively, the core diameter may be kept constant and the screw pitch decreased, Fig. 2, or both the core diameter and the screw pitch may be varied. Further configurations are described in Figs. 3 and 4 (not reproduced). In three examples, to a mixture of polystyrene with citric acid and sodium bicarbonate are added respectively 6% by weight of isopentane, 5% by weight of normal pentane and 7% by weight of propane, and in a fourth example 7À5% of normal pentane is added to a mixture of polyethylene, citric acid and sodium bicarbonate. Further specific polymers are mentioned as well as the use of cellulose.
Patent GB-1051821-A (GB)
Title: Dimersing acrylonitrile
IPC: C07C57/02
Filed: 1964-03-04
Abstract: Dimers and oligomers of acrylonitrile are produced by subjecting to a temperature of 0 DEG  to 250 DEG  C., preferably 50 DEG  to 150 DEG C., for not longer than 100 hours, in an inert atmosphere, which in certain instances can include air, acrylonitrile together with a proton donor which is a monoalcohol, a polyalcohol, a phenol, a carboxylic acid, a b-diketone, or water, and 0.1 to 20 mol. per cent of an organic phosphine or a phosphite.  It is preferable to interrupt the reaction when 2 to 50% conversion has taken place and the phosphorus compound may be converted into a complex compound with a Lewis acid, e.g. aluminium chloride or bromide or boron trifluoride.  An extensive list of organic phosphines and phosphites and proton donors is provided together with acids and salts having an acid reaction, which includes phenols.  In the examples, the use of the following phosphorus compounds and proton donor systems is described: triphenyl phosphine and ethanol, isopropanol, aqueous acetic acid or aqueous phenol, triethyl phosphite and ethanol, beta - cyanoethyl - diphenylphosphine and water with tetrahydrofuran, ethyl diphenylphosphine and water.
Patent GB-605924-A (GB)
Title: Improvements in or relating to automatic control devices for gates, doors, or the like
IPC: E05F1/12
Filed: 1947-01-08
Abstract: 605,924. Gate operating-appliances; hinges. STONE, H. A., and BRIDGER, W. C. H. Jan. 8, 1947, No. 9080/46. [Classes 65 (i) and 65 (ii)] A gate operating-appliance or spring hinge of the kind having a movable part 28 which carries a spring 27 adapted to move over a cam or the like on a fixed part 29, the spring being stressed when the gate is opened, comprises two abutments on the fixed part. The abutments, formed by an edge 31 and the nearer edge of a slot 32, are situated one on each side of the pivot 30 and are adapted to engage opposite sides of the spring when the gate is closed, thus constituting a stop for the latter in its closed position. The gate is held in its open position when the spring, after relaxing from the condition of maximum stress, moves into engagement with the side of the fixed part.
Patent GB-556202-A (GB)
Title: Improvements in or relating to furnace electrode structures
IPC: H05B7/107
Filed: 1942-07-01
Abstract: 556,202. Electric furnaces. LARSSEN, G. HAGERUP-. July 1, 1942, No. 9104. [Class 39 (iii)] In an electric furnace for producing aluminium, a self-baking electrode 1 is provided with contact members 2 in staggered rows which are forced into it at a point where the electrode is sufficiently soft. Flexible copper bands 4 are split at their lower ends into four strips which are connected to two contact members in the bottom row and two in the next row. The edge of the strip 4 is towards the electrode, and it passes between adjacent rows of contact members. The upper end of the strip 4 is bent over and connected to a bus bar 3 so arranged that contact members can be driven into the electrode above the bus bar and removed below it. The contact strips for the upper rows are of such cross-section that they carry only 20-30 per cent. of the current supplied to the lower contacts. The contacts are carried by iron frames 6 supported by hooks 7 fastened to beams 8 which can be moved simultaneously by gearing 9, 10, 11. The frames 6 are preferably connected to iron plates covering the electrode ends in such a manner that the frames and plates are not forced outwards by pressure of the soft electrode. The bus bars 3 may form part of the furnace enclosure.
Patent GB-1199681-A (GB)
Title: Window Panels
IPC: B60J3/00
Filed: 1968-02-26
Abstract: 1,199,681. Light-shielding window panels; motor vehicle windscreens. FORD MOTOR CO. Ltd. 26 Feb., 1968 [15 March, 1967], No. 9124/68. Heading B7J. [Also in Divisions B5 and C4] A panel shielding a region from rays of light comprises a transparent member 26 having a coating 28 of, or incorporating, light-sensitive photochromic material, and a grating means 30 permitting light impinging on the panel at some angles to pass therethrough while blocking the passage of other light therethrough. A motor vehicle comprises a laminated windscreen 26 having a coating 28 of photochromic dye, and a grating film 30, so that direct sunlight directed along the arrow 32 is blocked by the grating film 30 and the photochromic coating 28 is unaffected so the occupant 24 can see through the grating film, wheras direct sunlight along the arrow 34 passes through the film 30 and renders the photochromic coating 28 opaque to prevent dazzle. The grating film 30 and the photochromic coating 28 may both be on one side of the windscreen 26 or one or both may be located between the laminations of the windscreen 26.
Patent GB-488781-A (GB)
Title: Improvements in or relating to centrifugal fans
IPC: F04D29/30
Filed: 1938-03-25
Abstract: 488,781. Centrifugal fans. STEVENS, A. H. (Sturtevant Co., B. F.) March 25, 1938, No. 9197. [Class 110 (i)] Centrifugal fans have a plurality of inclined blades 10, Fig. 2, with straight outer edges 14 in contact with a curved side plate 13. The contact portion of plate 13 is formed as a surface of a hyperboloid of revolution, and is continued as a lip 13a to co-operate with the inlet 12. The blades are carried by a back plate 11. The curvature 20, Fig. 6, of the side plate is produced by the revolution, about an axis 22 but spaced therefrom, of a line 21 representing the edge 14 which therefore contacts with the side plate along its entire length.
Patent GB-472901-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/04
Filed: 1936-03-28
Abstract: 472,901. Telephone sets. STEUART, D. S. S., and HAMILTON & BRANDON, N. B. M. DOUGLAS-HAMILTON, DUCHESS OF. March 28, 1936, No. 9287. [Class 40 (iv)] A telephone set comprises a transmitter provided with an enlarged mouthpiece which is effective for the transmission of speech uttered at a distance of at least four inches and is mounted on a support which is expansible and contractible radially with respect to a base member carrying the supporting means. In addition, the receiver may be carried on a telescopic arm attached to the base member and the arrangement may be such that the transmitter and receiver are moved conjointly. The transmitter 10, Fig. 4, which has an enlarged mouthpiece 11, preferably of the type described in Specification 448,864, is connected to the outer member 12 of a set 13 of telescopic tubes of which the inner member is fixed to a joint 14 formed in a pillar 16, Fig. 5, mounted on the base 17 of the instrument. The telescopic arm is lengthened by means of a slidable rod 35 provided with a finger grip 36 and having a collar which engages with a part fixed to the tube 12. The transmitter 10 is secured to the tube 12 by a bracket and a member 24 on which is mounted a pivoted arm 25 carrying a hammer 27 adapted to engage the rear portion of the carbon-granule inset 23. The arm 25 is formed with a projection 29 engaged by a catch 30 on an arm 31 mounted on the member 24 and formed with a slot engaged by a pin on the rod 35. The hammer 27 is moved against the action of the spring 28 and released to agitate the granules by the movement of the rod 35 during the extension of the telescopic arrangement. The receiver 18, Fig. 3, is secured to the inner member of a series of telescopic tubes 19 carried by a sleeve 20 rotatable on a shaft 21 which can be rotated so that the receiver can be positionecl near either ear of the user. The largest movable tube carries a cylindrical casing 45 and a pin 41 which is withdrawn from springs 43 to close line contacts when the telescopic arrangement is extended. An existing connection can be broken and the line prepared for the establishment of a different connection by moving, the largest tube, which is provided with a knurled ring 48, inwardly and outwardly without the necessity of collapsing the whole arrangement. The agitation of the granules may be effected by the movement of the support for the receiver and may include an electrically-operated agitating mechanism. The transmitter output may be suppressed by a rod 50 slidable in a tube rotatably mounted on the base 17. The transmitter and receiver may be conjointly moved and may be carried on intermediate sections of a single telescopic structure. Specifications 448,894 and 450,510 also are referred to.
Patent GB-107599-A (GB)
Title: Improved Process and Apparatus for Distilling in Multiple Effect Alcoholic Liquors and the like.
IPC: B01D3/00
Filed: 1917-06-30
Abstract: 107,599. Barbet et fils et Cie, E. June 9, 1914, [Convention date]. Multiple-effect apparatus; alcoholic liquids, acetone &c., distilling.-Alcoholic liquids, and weak solutions of methyl alcohol, acetone, &c. are distilled by multiple-effect in a number of columns A, B, C, each receiving and completely exhausting a fraction of the liquid to be distilled. The boiler A' of the column A is heated by live steam or other supply of heat, and the boilers B<1>, C<1> of the columns B, C are heated by vapours generated in the preceding columns A, B. The column C is at atmospheric pressure and the columns B, A are at successively higher pressure. The phlegms resulting from condensation of the vapours in the boilers B<1>, C<1> are led to plates E at the top of the column C for further concentration. The united vapours thus obtained are led to the usual liquor heater D and refrigerator K. The liquid to be distilled is preheated in a heat-exchanger C<2> and the liquor heater D, and then flows through separate pipes under the control of valves R<1>, R<2>, R<3> to the columns A, B, C, pumps being provided where necessary. The portion led to the column A is heated nearly to its boiling-point in a heater Q by live steam. The portions entering the columns B, C are heated in heaters A<2>, B<2> by the exhausted liquid from the columns A, B. The exchanger C<2> receives exhausted liquid from the column C and also from the heaters A<2>, B'. The steam supply to the boiler A<1> is controlled by a regulator N in accordance with the pressure in the column C.
Patent GB-554785-A (GB)
Title: Improvements in and connected with lathes
IPC: B23B29/20
Filed: 1942-07-09
Abstract: 554,785. Turning. WHALE, L. A. July 9, 1942, No. 9536. [Class 83 (iii)] In a device for adjusting tools or tool holders A in capstan or other lathes, the holder is secured to a screwed spindle E running in a micrometer nut G. held against axial movement in a recess H in the turret B. After adjustment the shank D of the holder is locked. In a modification, Fig. 3, the nut G is retained by a semicircular shoulder I' against a sleeve I pinned in a circular recess in the turret B.
Patent GB-486749-A (GB)
Title: Improvements relating to the operation of control surfaces of aircraft
IPC: B64C9/02
Filed: 1936-12-08
Abstract: 486,749. Operating aircraft control surfaces. HUDSON, R. J. H. Dec. 8, 1936, No. 9608/38. Divided out of 487,049. [Class 4] Control mechanism for hinged control surfaces of aircraft comprises an element rotatable about a first axis and carrying a pivot joint with its (a second) axis substantially perpendicular to the first axis, these two axes intersecting the hinge axis of the surface at a point, the pivot joint connecting the said element with a further element rotatably borne in the surface about an (fourth) axis which also intersects at the said point and which is inclined to the first and third axes, whereby rotation of the said first element produces angular movement of the surface. As applied to an aileron 42, Fig. 1, hinged to a wing 43, about axis B, a control spindle 41B is rotatably carried about axis A in wing 43 and carries a fork 41C constituting with a similar fork 44 carried by a spindle 44A rotatably mounted in the aileron, a pivot joint of which the axis C is perpendicular to axis A. Axis D of spindle 44A is inclined to axes A and C, and all four axes are concurrent at F. The mechanism may be arranged to give differential action to the controls.
Patent GB-701223-A (GB)
Title: Improvements relating to apparatus for dispensing pastes, liquids and other substances
IPC: A47K5/12
Filed: 1951-04-25
Abstract: 701,223. Reciprocating pumps. CHURCHILL, H. W. S., and SCHOFIELD, C. S. April 22, 1952 [April 25, 1951], No. 9621/51. Class 102 (1). In an apparatus for dispensing paste &,c. the dispensing head 1 has ribs which slide in grooves in a wall bracket 20 and also carries a latch member 18 that enters an opening 19 in the wall bracket to secure the two. parts together. The latch member 18 is carried by a lever 16 pivoted on the pump piston rod 7 and pressed by a spring 23 to engage the latch. When the lever 16 is moved to make a discharge stroke, it pivots about the latch but when the piston rod is retracted, further movement of the lever causes it to pivot about the rod and disengage the latch. The pump piston is formed by a tapered head 8 of pliable material having a flexible lip 10. which controls the opening through which the paste &c. flows from the attached container 15. The pump outlet is fitted' with a rubber slit-nipple 12 acting as the pump discharge valve.
Patent GB-481334-A (GB)
Title: Improvements in spring balances
IPC: G01G3/04
Filed: 1937-04-05
Abstract: 481,334. Spring balances. INJECTA AKT.-GES. April 5, 1937, No. 9653. Convention date, April 7, 1936. [Class 143] In a spring balance having a scale pan carrier 4 supported by two springs 5, 5', and a rack 10 pivotally attached to the carrier for operating the load indicator, the pivot 11 of the rack is horizontally adjustable to permit of change in the effective length of the path of the rack. The scale pan carrier is guided vertically by two pairs of links 8, 8<1> and 9, 9<1> situated in planes perpendicular to each other and is supported pivotally on a cross-bar 4<11> suspended from the weighing springs. The pivoted rack 10 is carried by a slide 12 adjustable on the carrier 4, and engages an indicator pinion 16. Adjustment of the slide 12, by changing the inclination of the rack 10, varies the range of movement of the indicator and compensates for differences of spring tension when effecting replacements. The spindle of the pinion terminates in a conical or flat dial registering with a fixed index. The upper end of the spring 5<1> is supported on a lever 7 movable by a screw 21 for zero adjustment. The whole of the mechanism is carried by a support 2 attached to the casing. The mechanism may be locked during transport by moving an arm 22 into engagement with a slot in the pan carrier.