baber/WOPTO huggingface dataset:
Patent GB-456431-A (GB)
Title: Improvements in and relating to devices for the control of discharge paths
IPC: H02M1/04
Filed: 1935-02-01
Abstract: 456,431. Converting. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Feb. 1, 1935, No. 3325. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 2, 1935]. [Class 38 (ii)] In a grid-controlled arc rectifier 2, the grid voltages are supplied by a synchronous generator 4 having a peaky wave form and driven by a synchronous motor 5. Phase adjustment of the control voltages is effected by displacement of the stator of either the generator or the motor, or by the displacement of the magnetic axis of either the generator or the motor by varying the relative magnitudes of two field components, or by using an eddy current brake to give lag and a D.C. motor 6 to give lead to the shaft of the machines 4 and 5.
Patent GB-1133325-A (GB)
Title: Improvements in or relating to corrosion inhibiting coating compositions
IPC: C09D5/08
Filed: 1966-01-25
Abstract: 1,133,325. Coating metals. DIAMOND ALKALI CO. 25 Jan., 1966 [2 Sept., 1965], No. 3327/66. Heading B2K. [Also in Divisions C4 and C7] Corrosion inhibiting coating compositions for application to metal surfaces such as ferrous metals, zinc and aluminium, comprise a solution in a volatile solvent of (A) chromic acid, in a concentration 2-400 grams per litre, and (B) an organic component, of which 60%-100% by weight comprises at least one straight or branched-chain aliphatic dicarboxylic acid HOOC-(CH 2 ) n -COOH, n being 2-12, and the remainder (if any) comprises a further polyfunctional compound selected from (1) aliphatic C 4 -C 14  keto-carboxylic acids (2) aliphatic C 3 -C 18  unsaturated carboxylic acids (3) drying oils or other substances comprising glyceryl esters of aliphatic C 16 -C 18  unsaturated carboxylic acids having 1-3 double bonds (4) succinimide (5) acrylamide and (6) aspartic acid, in which solution (a) not more than 90% of the total weight of (B) is succinic acid, (b) the total concentration of the polyfunctional aliphatic compound(s) is 1-100 gms/litre and (c) the mole ratio CrO 3 : total of such polyfunctional aliphatic compounds is 5:1 to 0.8:1. The volatile solvent may be tertiary butyl alcohol or, preferably, water. The composition may include an etching agent comprising phosphoric and/or hydro fluoric acid. In a preferred embodiment a (or an additional) drying oil is applied to the surface just before or simultaneously with the application of the coating solution. The coating is applied conventionally e.g. by spraying, rolling or dipping and after, drying. is fired to a temperature between 100 and 205C. In examples steel substrates are tested.
Patent GB-1292713-A (GB)
Title: Thyristor control systems
IPC: G05F1/62
Filed: 1970-01-23
Abstract: 1292713 Rectifying NIPPON KOKUYU TETSUDO 23 Jan 1970 [24 Jan 1969] 3375/70 Heading H2F In a rectifying system in which rectifying units 51, 52 fed from respective secondary windings of a transformer 1, are connected in series, the rectifiers in one unit 51 are conductive over the whole of each half cycle whilst those in subsequent units are turned on and off at angles such as to reduce the content of odd harmonics in the primary current. The system is applicable to supply of current to motors of a thyristor-controlled train. The current in load 5 may be smoothed by a reactor (not shown) so that the theoretical primary current is as shown in Fig. 5 in which thyristors 311, 312 are arranged to be conductive during the whole of respective half-cycles resulting in primary current 821 of block form; thyristors 321, 322 are turned on and off at appropriate angles so as to draw primary current 822 of block form, which when added to blocks 821 results in a primary current having less third harmonic content than in a conventional naturally commutated system. Fig. 7 (not shown) relates to the primary current waveform of a system employing three series-connected rectifying units. The thyristors 311 ... 322 may be turned off by auxiliary circuits or may be of the gate-turn-off type. A filter may be included between the secondary windings and the thyristors which may be in bridge form to prevent regenerative operation.
Patent GB-925105-A (GB)
Title: Improvements in the manufacture of resins
Inventor: APLEY MARTIN
IPC: C08G79/14
Filed: 1960-01-30
Abstract: There are reacted together by heating, preferably to 130 DEG -185 DEG C.: (a) phosphoric anhydride, a hydration product thereof or a dehydration product of phosphoric acid, (b) orthoboric acid, boric oxide or mixtures of them, and (c) one or more dihydric and/or trihydric phenols or a mixture of a dihydric and/or a trihydric phenol with not more than an equimolecular amount of a monohydric phenol.  For every 6 gram atom of phosphorus in (a), there are 0,2-3,3, preferably 1,1-2,2, gram atom of boron in (b) and at least 0,5 gram mole of (c), the number of gram atoms of boron not exceeding the number of gram mole of (c), and the sum of the number of gram atoms of boron and the number of gram moles of (c) being 1-6,6.  The components may all be heated together, or any two reacted and the third added and heating continued.  When P2O5 is used as (a), the heat generated by adding a small quantity of water to the mixture will initiate the reaction.  3 hrs. heating at 180 DEG C. is usually sufficient.  The thermoplastic products may be cured by heating with formaldehyde or a formaldehyde donor to at least 200 DEG C., or by heating alone to a higher temperature.  The thermoplastic resins, dissolved in a solvent, dispersed in water, or without either treatment, may be mixed with e.g. asbestos fibre, mica or aluminium powder and later cured to give mouldings, laminates, surface coatings or bonding agents.  Although preparation and curing are usually done separately, the resin components, fillers and, if added, formaldehyde or a formaldehyde donor, may be mixed and heated to above 200 DEG C., preferably in a mould, to give a cured product.  Specification 807,851 is referred to.
Patent GB-641540-A (GB)
Title: Improvements in and relating to pressure cookers
IPC: A47J27/092
Filed: 1947-08-05
Abstract: 641,540. Lids for resisting fluid pressure. BAKARIAN, P. W. Aug. 5, 1947, No. 3400/49. Divided out of 615,768 [Class 123(i)] In a steam pressure cooker in which the lid is secured to the cooker body by the engagement of pairs of complementary lugs 1, 2 on the two parts, and fluidtightness is secured by an interposed annular sealing gasket, means is provided to prevent removal of the lid while the cooker pressure is dangerously high. In one arrangement, Fig. 2, some or all of the body lugs 1 are each formed with a step or rebate 1a on the undersurface of the leading edge thereof in such a manner that, upon rotating the lid to release same, any pressure within the cooker will force the lid lugs 2 into the steps 1a, thus allowing the lid to rise slightly and break the seal to permit escape of steam. In a modification the steps are replaced by spaced pins 3, Fig. 4.
Patent GB-1323538-A (GB)
Title: Automatic icecream machines
IPC: A23G9/10
Filed: 1972-01-25
Abstract: 1323538 Mixing apparatus APAW SA 25 Jan 1972 [26 Jan 1971] 3490/72 Heading B1C [Also in Division F2] An ice-cream machine has a rotatable container 1 with a rotatable helical scraper 4 journalled in a bearing 7 resiliently mounted in a bearing mounting 5 by a resilient member such as a sleeve or rings 9, 10. The mounting 5 is eccentric and can be rotated to adjust the clearance between the scraper 4 and the container well while the resilient member allows the scraper to accommodate irregularities.
Patent GB-396706-A (GB)
Title: Improvements in or relating to lubricators
IPC: B61F17/26
Filed: 1932-02-05
Abstract: 396,706. Lubricators. BLISS, J., 30, Cheapside, London. Feb. 5, 1932, No. 3496. [Class 12 (iii).] A lubricator comprises a lubricant reservoir 10, a conduit 19 supplied directly with lubricant from this reservoir for normal feed, an accumulation chamber 21 with a gravity discharge passage in communication with the conduit 19 and a valve 26 or an arrangement of interconnected valves to establish or arrest the flow of the normal feed and the flow from the accumulation chamber simultaneously. An auxiliary reservoir 12 having a hinged cover 13 is located above the accumulation chamber 21 and is supplied with oil through a passage 11 connecting it with the main reservoir 10 on the " chicken-feeder " principle. A nipple 23 screwed into the partition 22 and provided with a restricting wire 24 passes into the upper end of the conduit 19 which provides a trapping partition in the accumulation chamber 21. This partition may be provided with holes 34 of position and size varying with the accumulation desired in the chamber 21. The latter has an air vent 28 which extends above the normal oil level in reservoir 12. When the valve 26 is first opened, the accumulated oil flows from chamber 21 until the level therein falls to that of the lowest hole 34. Simultaneously the normal feed takes place through nipple 23 and continues after the valve 26 is closed so that oil accumulates in chamber 21 ready for the next operation. The reservoirs 10, 12 and the chamber 21 are made as a single casting. The reservoir 12 is divided into six compartments by partitions 29, each having an accumulation chamber. These are each fitted with a conduit 19 having a valve 26, a sight feed glass 20, and a nipple 27. The valves 26 each have an arm 31 pivoted to a transverse bar 32 so as to be operable simultaneously by a handle 33. A baffle 30 prevents lubricant surging into reservoir 12. The passage 11 is closed by a valve 15 when the plug 16 is unscrewed for filling purposes. In a modification, the valves 26 are replaced by inverted mushroom valves having bores with restricting wires. Each valve is urged by a spring abutting the upper side of the partition 22 and a nut screwed in the valve stem against a seat formed by the upper end of conduit 19. In this position, the reservoir 12 communicates with the chamber 21 by means of the space between flutings on the valve spindle and a hole in the partition 22, and the normal feed is cut off because the bore in the valve stem is above the oil level in the reservoir 12. The valves are operated simultaneously by means of a rock shaft in reservoir 12, having along its length a foot to depress each valve so that oil passes out of the accumulating chamber past the flutings which no longer allow flow from the reservoir 12 to chamber 21. At the same time, the normal feed proceeds because the bores in the valve stems are depressed below the oil level in the reservoir 12.
Patent GB-127293-A (GB)
Title: Improved Apparatus for Igniting Grenades.
Inventor: LEBLANC FERDINAND LAMBERT
IPC: F42C14/02
Filed: 1917-03-13
Abstract: 127,293. Leblanc, F. L. Aug. 25, 1916. Projectile fuses. - Relates to fuse-igniting devices for grenades and the like, of the kind in which is provided a rotary striker normally maintained in the cocked position by a lateral lever, and consists mainly in protecting the igniting-devices proper by arranging them within a chamber which is closed by the lever. In the construction shown, a plug a adapted to screw into the grenade body encloses a length of fuse d, at the end of which is a percussion cap h covered by a dampexcluding washer i of tin or the like. The cap is disposed between ribs g, which provide vents for the gases of combustion. Mounted on a pin l between two side walls is a spring-actuated striker k. This is normally held cocked, as shown, by a lever n, which hooks at o over the plug a and, together with the side walls, forms a chamber enclosing the striker and cap. When the lever is released on the discharge of the grenade either by hand or from a fire-arm, the striker is thrown over by its springs, breaks the washer i, and ignites the percussion cap.
Patent GB-1157215-A (GB)
Title: Metering Apparatus
Inventor: SMEULERS DIRK
IPC: B01F15/04
Filed: 1967-01-25
Abstract: 1,157,215. Mixing in proportions. AMERICAN MACHINE & FOUNDRY CO. 19 Jan., 1968 .[25 Jan., 1967], No. 3747/67. Heading B1C. [Also in Division B8] An apparatus for metering first and second liquids in variable proportions comprises first and second batch measuring chambers 1, 2 first and second adjustable devices 6, 15 for varying the volumetric capacities of the vessels respectively, and screw adjustment means whereby adjustment of the first device 6 adjusts the second device 15 to vary the volumetric capacity of the second chamber 2 by an amount related to the variation in volumertic capacity of the first chamber in the opposite sense. The devices for varying the capacities of the measuring chambers are in the form of plungers 6, 15, the plunger 6 having an arm 6A connected to a R.H. threaded spindle 8 which, via a chain-end sprocket drive, rotates a second L.H. threaded spindle 14; by rotating the spindle 8 to raise the plunger 6, the plunger 15 moves downwardly a corresponding amount. A third threaded spindle 18 is connected via a sliding nut 16 to the plunger 15 so that the latter may be adjusted independently of the plunger 6. In operation, liquid is fed into the chambers via valves 3, 3A until it overflows from outlets 5, 5A. The valves 3, 3A are then closed and outlet valves 4, 4A opened so that the liquid flow from both chambers. The cycle of operations is controlled electrically and a counter may be provided.
Patent GB-725164-A (GB)
Title: Improvements in electrical meters
IPC: G01R5/16
Filed: 1953-02-11
Abstract: 725,164. Electric measuring instruments. GENERAL MOTORS CORPORATION. Feb. 11, 1953 [Feb. 14, 1952], No. 3794/53. Class 37. An ammeter or voltmeter of the moving- magnet type comprises a pivoted magnet and two radially disposed fixed coils wired in series mounted perpendicular to each other, one of the coils producing a field opposing a permanent magnet adjacent to its outer end and the other coil a field perpendicular to this. Suitable choice of the permanent magnet and the ratio of turns on the coils gives an instrument with a non-linear scale, so that virtually no angular movement occurs below a predetermined current value. When this current is exceeded the deflection increases progressively until the magnet is parallel to the second field. In the embodiment described (Fig. 2) the coils and cores are mounted on right-angled pieces 56, 58 bolted to upstanding flanges 38 and 40 of the base plate 36 and the moving magnet 52 is pivoted on bearings in the base plate and in a bent-over part 45 of a further flange 42. The base plate is riveted to an insulating plate 20 which in turn is bolted to another insulating plate 18 outside the base of the case. The two bolts 22, 24 which provide terminal connections, pass through holes in the two plates and holes 10 and 12 giving clearance for insulation purposes in the case bottom, the insulating plates being held in position by locating tangs 14 and 16 punched out of the case bottom.
Patent GB-534449-A (GB)
Title: Improvements in or relating to a photographic enlarger
IPC: G03B27/54
Filed: 1940-03-01
Abstract: 534,449. Photographic enlarging apparatus. KODAK, Ltd. March 1, 1940, No. 3846. Convention date, March 11, 1939. [Classes 97 (i) and 98 (i)] A photographic enlarger includes a condenser unit having a handle by which it may be inserted into and removed from its housing, and which may be moved to engage the wall of the housing to retain the unit in position. In the form shown, the condenser of a vertical enlarger comprises lenses 8 mounted in rings 9 and a heat-absorbing glass 14, the rings 9 and glass 14 being held in grooves in a casing 10 formed in semi-cylindrical parts releasably connected, as by a plate 11 attached to one and screwed to the other. A bucket handle 15 is pivoted on lugs 16, which are formed of two overlapping parts each secured to one half of the casing, the pivot pins passing through both. When the unit has been inserted in the tubular housing 3, in which it is supported by a flange 18, it is held in place by turning the handle 15 to the horizontal position, Fig. 3, in which it bears on the wall of the housing, and forces the condenser unit against the opposite portion of the wall.
Patent GB-606484-A (GB)
Title: Improvements in and relating to horse shoes
IPC: B21K15/02
Filed: 1946-02-07
Abstract: 606,484. Bending and forging horseshoes. ANDERSEN, C. Feb. 7, 1946, No. 3939. Convention date, Dec. 16, 1939. [Class 83 (iv)] Horseshoes are made in a machine in which a turret carries bar blanks in succession past tools arranged in a circle. Radial supports 3 on a shaft 2 carries blanks 6 on workholders 4 past stationary tools A, B, C, D, E, F. The blank is positioned at station A between a spring-mounted former 5 and stops 7 at station B. The toe clip 40 is swaged and horizontal tools 9 upset the calkins 12. The blank then moves to station C where a V-ended plunger 13 makes an initial bend and tools descend to swage the nail groove and partially form the nail holes. A carrier with spring-pressed rolls 28 at station D is reciprocated to bend the blank about the former 5 after locating members 19 have been depressed. At station E a vertically-moving slide 30 with roller 31 bends the toe clip at right angles to the blank. The shoe is freed from the former at station F by a head 32 which depresses the spring- mounted former.
Patent GB-898117-A (GB)
Title: Improved speedometer cable
IPC: F16C1/06
Filed: 1961-02-02
Abstract: 898,117. Flexible shafts. FORD MOTOR CO. Ltd. (Ford Motor Co.). Feb. 2, 1961, No. 3954/61. Class 80 (2). A speedometer cable comprises a self-lubricating plastic rod 10 surrounded by braided concentric sheaths 11, 12 of self-lubricating plastic filaments protected by a stationary tube 13 capable of limited bending. End connectors (not shown) transmit torque to and from the members 10, 11, 12. The cable may have three braided sheaths.
Patent GB-1088509-A (GB)
Title: Electrically heated soldering iron
IPC: B23K3/03
Filed: 1966-01-28
Abstract: 1,088,509. Electric soldering irons. ERSA ERNST SACHS KOMM. GES. Jan. 28, 1966 [Feb. 8, 1965], No. 3971/66. Heading H5H. An electrically heated soldering iron comprises a handle, a tubular housing secured to the handle terminating in a tapered portion soldered or welded to an outer tube 37 carrying a soldering tip, a loading resistance 12 having a positive temperature coefficient of resistance wound on a tubular former 27 disposed in the housing, an electric heating element 11 wound on a tubular former 16, disposed in the outer tube and connected in series with resistance 12 and a hollow ceramic head 22 engaging the formers 16, 27, engaging parts having interengaging flats. The handle forms a pistol grip and contains a switch. The heating element 11 is of anodized NiCr wire with its windings concentrated near one end and is covered by a mica lining 38.
Patent GB-577151-A (GB)
Title: Improvements in or relating to packages or wrappers for small discrete bodies to facilitate the opening thereof
IPC: B65D75/34
Filed: 1944-03-03
Abstract: 577,151. Packages. McGEORGE, W., and KOCH, E. A. J. March 3, 1944, No. 4030. [Class 94 (i)] In a package or wrapper for small discrete bodies such as tablets, pills, sweets, and the like wherein the bodies lie in containers b formed by recesses in one web of sheet material and covered by an adhesivelyattached second web which may be correspondingly recessed, ready access to each container is obtained by the provision of dummy containers e at the intersection of diagonals of each square defined by each four containers. The double web a, a is provided with rows of perforations g.
Patent GB-233795-A (GB)
Title: Improvements in or relating to mould-board apparatus for the erection of concrete and like structures
IPC: E04G11/22
Filed: 1924-02-16
Abstract: 233,795. Mote, F. F. Feb. 16, 1924. Moulding walls in situ.-Apparatus for moulding walls in situ, course upon course, comprises towers 12 and horizontatly-extending brackets 18 on each tower to carry the shutters 20, the brackets being moved upwards on the towers after each casting operation. Each bracket comprises means whereby the shutters are expanded from or contracted on to the wall simultaneously. In one form, Fig. 2, the shutters are carried by nuts 27 working on reversely screwed rods 22 which are operated by worm and worm wheel gearing 28, 30 from a shaft 29. Alternatively, the shutters may be carried by rack rods, one above and one below an operating pinion, so that they are expanded or contracted simultaneously; or the shutters may be carried by fluid-pressure operated rams which are controlled from a single valve for expansion and contraction; or again, the shutters may be carried by toggle-operated levers actuated by an eccentric and throw-over counterweight for expansion and contraction. For hollow walls, core shuttering 21, Fig. 6, actuated by toggles 61 and a screwed rod 63, may be used; or the core shutters may be cross connected to the main shutters so as to be operable simultaneously with them, as shown in Fig. 2. The shutter brackets may be raised after each casting operation by means of pulley and rope gearing passing over the tops of the standards and down to winches 69, and the winch shafts may be interconnected by coupling rods and sleeves to ensure simultaneous elevation of the various brackets. The expanding and contracting mechanisms of the various brackets may also be interconnected by rods 65 and sleeves 66 to ensure the simultaneous movements of the various lengths of shuttering. The adjacent ends of shutters may be recessed to fit together to form a continuous inner surface. Gaps are left in the mould boards where doors, windows, and the like are to be formed and the gaps are stopped off by vertical plates which fit together at the centre of the wall. A collapsable core may be used for forming a chimney and this core would be carried by the horizontal bracket on the nearest tower. In cases of lateral deviation, bevel gearing or equivalent devices are fitted to ensure the simultaneous actuation of the expanding and contracting mechanisms. Scaffold brackets may be carried by the movable shuttering brackets 18. Specification 28296/13 is referred to.
Patent GB-419438-A (GB)
Title: An automatic regulator of brakes
IPC: B60T11/06
Filed: 1933-02-10
Abstract: 419,438. Transmitting-mechanism for brakes. SOMMELLIER, P., Dim-sur-Meuse, La Meuse, France. Feb. 10, 1933, No. 4124. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 19, 1933]. [Class 103 (i).] The description is not clear chiefly for the reason that different reference characters are used in the description from those on the drawings. The device appears to be differential gearing mechanism for effecting the equal application of four brakes comprising an operating lever 2 carrying a pinion 3 geared to wheels 4, 4<1> secured to tubular shafts 5 having arms 6 each carrying a pinion 7, 8. One pair of brake operating rods 11, 12 are connected to gears 9, 10 which mesh with the pinion 7 and the other pair of brake rods 15, 16 are connected to gears 13, 14 meshing with the pinion 8. " Brakes " S connected to the arms 6 and engaging the interior of the gears 13, 14 &c. apparently prevent differential movements of the gears unless one or more of the brakes is applied before the others due to wear of the brake linings or lengthening of the rod, when an adjustment is automatically and permanently made.