baber/WOPTO huggingface dataset:
Patent GB-469893-A (GB)
Title: Improvements in and relating to poles, beams, struts and like structural members
IPC: E04C3/06
Filed: 1936-02-03
Abstract: 469,893. Structural members. LOWE, J. G. W. Feb. 3, 1936, No. 3235. [Class 20 (ii)] Tubular structural members are formed of a plurality of elements welded together longitudinally, each element comprising alternate thick and thin portions so disposed that the thick portions are at a greater distance from the longitudinal axis of the member than the thin portions. Several shapes of elements are shown, that in Fig. 2 being welded to a similar element to form the member shown in Fig. 10, the thick portions lying at a greater distance from the neutral axis than the thin portions. The elements may be provided with bolt and lightening holes, as shown in Fig. 17, those on opposed elements being in staggered relationship to provide a greater selection for the connection of the members to each other and to other members.
Patent GB-527013-A (GB)
Title: Improvements in steering gear
IPC: B62D5/093
Filed: 1939-01-31
Abstract: 527,013. Fluid-pressure servomotors. JOHNSON, M. E., and BARKER, S. Jan. 31, 1939, No. 3253. [Classes 69 (ii) and 135] Steering-gear for power boats, but also applicable to road vehicles and aircraft, comprises a servomotor f connected to the rudders &c. a and controlled by a valve or equivalent device h which is operated by a hydraulic telemotor system comprising a pair of plungers actuated by an eccentric on the shaft of the steering-wheel s or tiller,' so as to force liquid through one or other of pipes p<SP>1</SP>, q<SP>1</SP> leading to opposite sides of a fixed piston v, Fig. 4, in a movable casing o connected at n to a lever m, the servomotor f being operated by vacuum or by fluid pressure separate from that used in the telemotor system and supplied from a tank j. The control valve h comprises. a casing connected by a rod g<SP>1</SP> to the lever m, and having another rod g connecting the rudders &c. to a single piston valve sliding within the casing as described in Specification 510,790. The lever m may constitute the drop-arm of a manual steering-gear such as is described in Specification 510,790, the lever being mounted freely on the worm-wheel shaft or the like, but being adapted for connection thereto by a clutch device which is disconnected so long as steering is to be effected through the wheel s and the telemotor system, but locks the lever to its shaft when the manual steering-gear is to be operated, the link n being disconnected from the lever.
Patent GB-636094-A (GB)
Title: Improvements in temporary roadways over bridges or culverts
IPC: E01D15/133
Filed: 1948-02-05
Abstract: 636,094. Temporary roads. BOX, N. E. Feb. 5, 1948, No. 3338. [Class 107] A temporary roadway which can be carried by a heavy vehicle and laid over an existing bridge or culvert A of insufficient strength to carry the vehicle, so that the vehicle may safely pass thereover comprises central sections 1 which span the bridge or culvert and ramps 9 at each end pivotally connected at 14 to the central sections, to provide runways thereto. The central sections are coupled side by side by bolts 13 and consist of top frames 2, bottom frames 3 and bracing members 4. The central sections are coupled rigidly end to end by pins 8, Fig. 6 engaging lugs 7 on the sections. Wheels with stub axles which may be inserted in bores in the central sections, are provided to facilitate the manoeuvring of the temporary roadway into position.
Patent GB-1145631-A (GB)
Title: New 19-nor-steroids and process for their manufacture
IPC: C07J69/00
Filed: 1967-01-23
Abstract: 1,145,631. 3-Oxo-4α,10α; 2#,1<SP>1</SP>-bicyclo-5#- methyl-1(<SP>1</SP>)-19-nor-steroids. CIBA Ltd. 23 Jan., 1967 [4 Feb., 1966], No. 3348/67. Heading C2U. The novel title steroids of the partial formula (A) (wherein R 1  is a free or esterified OH group together with an H atom or is an oxo group) are prepared by treating 5-formyl steroids of the partial formula (B) with an acidic or basic agent, or by heating the steroids of the partial formula (B). In the products any acetal group present may be liberated, and/or any ether or ester group converted to a free OH group, and/or any OH group etherified, esterified or oxidized. The starting materials are described and claimed in Specification 1,144,284. The steroids of the invention, which are stated to have coronary dilating, analeptic, diuretic, sodiouretic and anti-androgenic activities, may be made up into pharmaceutical or veterinary compositions with suitable carriers.
Patent GB-360762-A (GB)
Title: Improvements in drip mouldings for vehicles
IPC: B60R13/04
Filed: 1931-02-03
Abstract: 360,762. Drip mouldings for vehicles. SARJEANT, F. C., Spero Works, Finch Road, Handsworth, Birmingham. Feb. 3, 1931, No. 3386. [Class 108 (i).] Sheet-metal drip mouldings consist of a fixing strip e with parallel raised flanges, and a combined moulding and gutter section having a single upper flange d and a duplex or folded lower flange b which slidably engage behind the strip e.
Patent GB-824828-A (GB)
Title: Improvements in or relating to the sealing of electrical components
IPC: H01G13/00
Filed: 1958-02-03
Abstract: 824,828. Moulding condenser casings. MOCHI, E. G. Feb. 3, 1958 [Dec. 12, 1957], No. 3401/58. Class 87(2). [Also in Group XXXVI] An electrical component, e.g. a condenser 1, Fig. 1, is hermetically sealed by placing it within and spaced from a housing 2 having at least one removable end closure 3, so that a resin sealing compound, e.g. a polyester or epoxy resin, may be poured into the space between the component and the housing 2, the closure or closures 3 being removable after the resin has set. As illustrated in Fig. 1, the housing 2 has two end closures 3 provided with a resin inlet 4 and a vent 4 respectively. Alternatively the housing 7, Fig. 3, has a single lower end closure 9, the upper condenser terminal a extending outwardly as shown or being connected to the upper end of the casing 7 as in Fig. 4 (not shown).
Patent GB-581360-A (GB)
Title: Improvements in electric distance relay protective systems
IPC: H02H1/04
Filed: 1941-03-13
Abstract: 581,360. Protective cut-out arrangements. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. March 13, 1941, No. 3420. Convention date, July 28, 1939. [Class 38 (v)] A distance protective system capable of discriminating between true faults and hunting phenomena produced by faults, when the impedance or other characteristic of a line in its cyclical variations may approximate to the operating values of an ohmmeter unit, is made free to act instantaneously for a certain timeinterval and is then locked against operation for a further time-interval. If a fault occurs in the instantaneous zone of the ohmmeter unit, the latter will cut out the fault, but if the fault occurs within the time-lag zone of the unit the latter can only operate with a delay sufficient to exclude the possibility of tripping by the lack of synchronism set up by the fault. The invention is applicable to systems employing a single ohmmeter unit the sensitivity of which is reduced in time-stages corresponding to increasing fault distances, and also to the instantaneouslyacting relay of a graded series each controlling a section, since that relay is also subject to operation by hunting. In Fig. 4, on fault, the starting relay closes its contact 6 which energizes a time relay 5 which changes its contact after a delay, from contact 3 to contact 4 so that, unless the ohmmeter unit has closed its contact 2 to energize the trip coil 7 before the expiry of that delay, it can only be energized by closure, after a longer delay, of contact 9 of a further time-relay 8 under control of relay 5 and unit 2. Specification 527,343 is referred to.
Patent GB-957506-A (GB)
Title: Cooling fans for vehicle engines
Inventor: KEMP KENNETH ALBERT WALTERS
IPC: F16D43/25
Filed: 1960-01-15
Abstract: 957,506. Friction clutches. C.A.V. Ltd. Jan. 27, 1961 [Feb. 1, 1960; April 27, 1960], Nos. 3431/60 and 14713/60. Heading F2C. [Also in Divisions F1 and G1] A cooling fan for vehicle engines comprises fan blades 14 connected to one part 15 of a centrifugally-operable clutch, the complementary part 16 of which is driven by the vehicle engine, and temperature-responsive means 27 combined with the clutch to determine the angular velocity at which the clutch will be disengaged. The angular velocity at which the clutch is disengaged is governed by the loading on a dished spring 17, which loading is adjusted by nuts 20 on a spindle 24 and by the temperature-responsive means 27 which increases the loading on the spring 17 with an increase in the cooling water temperature. When the angular velocity of a pulley 8 has risen sufficiently, flyweights 22 pivot about points 23 and move an annular member 11 and a disc 13 axially against the spring 17 to disengage the clutch. The temperature-responsive means 27 may, as shown, comprise a number of dished annular bi-metallic elements or it may be a sleeve of liquid, rubber, plastics or similar deformable material.
Patent GB-1172524-A (GB)
Title: Improvements in or relating to Apparatus for the Drying of Grain or other Granular Material
Inventor: BROWN RICHARD ARTHUR
IPC: F26B17/14
Filed: 1966-01-28
Abstract: 1,172,524. Apparatus for drying grain &c. RANSOMES SIMS & JEFFERIES Ltd. 24 Jan., 1967 [28 Jan., 1966], No. 3494/67. Divided out of 1,172,522. Heading A2Q. [Also in Division F4] The subject-matter of this specification is substantially the same as that of Specifications 1,172,522 and 1,172,523 relating to apparatus for drying and cleaning granular material such as grain, but the claims are mainly concerned with rakes 80 having fingers 78, Figs. 1 and 4, located in the zigzag paths taken by the material in its downward flow through the drying tower 2. The rakes 80 may be located in successive inclined portions of at least some of the zig-zag paths, and the fingers 78 of successive rakes may be staggered.
Patent GB-705841-A (GB)
Title: Improvements in or relating to sluice valves
IPC: F16K3/12
Filed: 1951-02-14
Abstract: 705,841. Sluice valves. THORNROS, E. O. Feb. 14, 1951 [Feb. 14, 1950], No. 3558/51. Class 135 A sluice valve comprises a closure member formed of discs 2, Figs. 1, 3, each joined by a neck 3 to a member 5 guided in the body 1 by ribs 7 and having a lateral slot 6 to render the closure member resilient. An operating rod 4 has a conical part 10 extending between upper and lower collars 8, 11, respectively, and engaging a conical hole in the centre of member 5. When the valve is closed, part 10 urges the discs against the body seats, and when the rod is raised, the collar 11 abuts the member 5 to move the closure member to open position.
Patent GB-114017-A (GB)
Title: Improvements relating to Electric Circuits Linked by a Relay or Repeater.
Inventor: GRINSTED WILLIAM HERBERT
IPC: H04B1/58
Filed: 1917-03-13
Abstract: 114,017. Grinsted, W. H. March 13, 1917. Relays, repeaters, and translators, non-circuitclosing.-To prevent " howling " in a relay having a local input circuit and a local output circuit, equal and opposite electromotive forces are set up in the input circuit by the currents in the output circuit. In the arrangement shown in Fig. 1, the input circuit is connected to the lines 1, 2 by transformers P<1>, I' P<2>, I<2> while the output circuit is connected to the lines by transformers 0', S'; O<2>, S<2> connected in such a manner that the electromotive forces induced in the input circuit by the currents in the windings P', P<2> derived from the transformers O<1>, S<1> ; O<2>, S<2> are equal and opposite. In the modification shown in Fig. 2, two transformers are provided, each of which has a winding P' or P<2> in the line, a winding I<1> or I<2> in the input circuit, and windings O<1>, O<2> connected in parallel in the output circuit.
Patent GB-1201531-A (GB)
Title: Aromatic polyamides
Inventor: JONES MICHAEL EDWARD BENET
IPC: C08G69/32
Filed: 1968-01-24
Abstract: 1,201,531. Aromatic polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 8 Jan., 1969 [24 Jan., 1968], No. 3697/68. Heading C3R. Amorphous aromatic polyamides are derived from (a) a mixture of at least one diaminodiphenyl sulphone with at least one diaminodiphenyl ether, the diaminodiphenyl ether forming more than 50 mole per cent but less than 88 mole per cent of the mixture, and (b) isophthalic acid or a mixture of isophthalic acid with another aromatic dicarboxylic acid present in an amount not exceeding 50 mole per cent of the mixture. Up to 10 mole per cent of component (a) may be replaced by an aliphatic diamine and up to 10 mole per cent of component (b) may be replaced by an aliphatic dicarboxylic acid, also, up to 50 mole per cent of the diaminodiphenyl sulphone and/or the diaminodiphenyl ether may be replaced by another aromatic diamine. In examples polyamides are obtained by reacting mixtures of 4,41-diaminodiphenyl ether and 4,4<SP>1</SP>-diaminodiphenyl sulphone with isophthaloyl chloride.
Patent GB-1270911-A (GB)
Title: Improvements in or relating to cooker hoods
Inventor: DIGGLE FREDERICK GEORGE
IPC: F24C15/20
Filed: 1970-01-26
Abstract: 1,270,911. Cooker hoods. GEC-XPELAIR Ltd. 5 Jan., 1971 [26 Jan., 1970], No. 3706/70. Heading F4V. In a cooker hood having an electric motordriven fan within the hood casing, a safety device within the casing in series with the fan motor is responsive to smoke, flames, or excessive heat within the casing to de-energize the motor. In the form shown, a switch 10 which may be positioned at the hood inlet 4 includes a spring biased plunger which. is normally held closed by a fusible cap 12. Alternatively the switch may normally be held closed by a bimetallic element, or the fan motor may be connected in series with one or more temperature variable resistances. A fire-resistant pivoted damper 13 is positioned at the inlet 4 or in an exhaust duct 6 and is held in an open position by an electromagnet in series with the switch or by air pressure, against gravity or a spring, when the fan is operative. In another embodiment, a switch is normally held closed by a pivoted flap which itself is held in an open position by a fusible link or bimetallic element. A grease removing filter and an odour removing filter of activated carbon are provided. In yet another embodiment, a solid state electronic motor controller is in series with a photo-electric cell which is responsive to flames, or with an infra-red detector, or with a detector which normally receives radiation from a source and emits a signal when the source is obscured by smoke.
Patent GB-821669-A (GB)
Title: Improvements in the manufacture of electrically insulated wires
Inventor: BLACK ROBERT MONRO
IPC: B01J19/08
Filed: 1957-02-04
Abstract: A method of treating electrically insulated wire, to change the properties of the insulation, comprises continuously drawing the wire off a multi-layer coil which is rotating about its axis whilst directing a beam of high-energy electrons towards the coil in such a way that the whole of its peripheral surface is irradiated and the beam penetrates more than one layer of the coil and is scattered by the wire into parts of the insulation otherwise screened by the wire. A Van de Graaff accelerator with an oscillating beam which "scans" the coil at a frequency high relative to the rate of rotation may be used, the efficiency being greatest when the thickness of the insulation is greater than the diameter of the wire.  The number of layers should be such that the aggregate radial thickness of the coil is at least twice as great as the depth of penetration of the beam, and the leading and finishing layers may be severed and attached to subsequent coils to ensure even radiation in all layers.  Suitable insulating materials for this treatment are natural or synthetic thermoplastic resins, e.g. polythene.  Specifications 766,802 and 817,033 are referred to.
Patent GB-577798-A (GB)
Title: Improvements in or relating to the manufacture of sintered metal compositions
IPC: C22C11/00
Filed: 1943-03-09
Abstract: 577,798. Alloys; granulating alloys. MANGANESE BRONZE & BRASS CO., Ltd., and ROBSON, E. March 9, 1943, No. 3811. [Classes 82 (i) and 82 (ii)] A sintered metal composition consisting of copper, tin and lead, wherein the lead is uniformly distributed is made by mixing a powdered alloy of lead and tin with powdered copper, compressing the mixture to form a briquette or compact, and sintering. Various compositions of tin-lead alloys, and various mixtures of copper powder and tin-lead alloys of specified compositions are described. Graphite or volatile lubricant or both may be added to the mixture. The preferred method of obtaining the powdered tin-lead alloy consists in melting the desired proportions of tin and lead together in a pot the bottom of which is provided with a small aperture and a tubular extension, the sizes of which are determined according to the degree of fineness required in the powdered product. An annular nozzle surrounds the opening of the tubular extension, heated air being blown through the nozzle so as to impinge upon and disintegrate the falling jet of molten tin-lead alloy issuing from the tubular extension.
Patent GB-803737-A (GB)
Title: Holder for transparent photographic plates
IPC: G03B21/64
Filed: 1955-02-09
Abstract: 803,737. Lantern slides. MOSCA, L. P. Feb. 9, 1955 [Aug. 3, 1954], No. 3940/55. Class 98(2)  Diapositive holders adaptable for linking together in chain-like formation for use as in a projection apparatus without the handling of each one separately comprise a stiffening plate 15 embedded by moulding in a rubber frame 1 whereby the rubber passes into apertures 24 in the plate, the frame having parallel walls, separated for accommodation of a diapositive which is inserted into an end slot 23, and both frame and plate having coincident windows 20. A lug 21 of the plate 15 carries a hinge pin 3, and the lower part of the frame 1 has a cut out notch 5 with bores 4 at the sides thereof whereby a pin 3 may engage in the bores 4 to link one holder to the next one. Plate 15 has projecting lugs 16, 17, 18 and 19 to slide in the projection apparatus. A similar holder in which the stiffening plate is merely inserted into the frame instead of being embedded therein and disadvantages in the use thereof are referred to in the Specification.
Patent GB-537559-A (GB)
Title: Improvements in and relating to backing devices for use in electric welding operations
IPC: B23K9/035
Filed: 1940-03-05
Abstract: 537,559. Uniting by fusion. HUME, W. R. March 5, 1940, No. 4121. [Class 83 (iv)] An arc weld between the edges of a metal pipe or the like is backed during formation by a granulated material such as sand contained in a box carried by a supporting bar and pressed against the underside of the work, the sand &c. bemg continuously displaced by feeding means so that it is forced upwardly in the form of a mound against the underside of the work. The box has an open top, is provided with inner and outer compartments 2c, 2d, and is secured by extensions 8a to a bar 8, which is pivoted at 9 and weighted at 11 so as to press the box against the work 4. A right- and left-handed conveyer screw 12 connected by universal joint 21 to a driving shaft 22 passes through the box and raises the sand in the inner compartment into a mound part of the sand being displaced from the mound and falling into compartment 2d from which it is again fed upwardly through openings 10 in the inner walls 2a of the box. The clearance space 13 between the work and upper edges of the walls to allow for passage of the sand. is varied by adjustable flanged distance pieces 14, The conveyer screw may extend transversely through the box, Fig. 6, and be driven by wheels 23 rotated by traverse of the work. The wheels may be formed of or surfaced with rubber or like resilient material.
Patent GB-588457-A (GB)
Title: Improvements in or relating to heating and ventilating systems for vehicles
IPC: B60H1/00
Filed: 1945-02-19
Abstract: 588,457. Ventilating vehicles. CLAYTON DEWANDRE CO., Ltd., and BLOMELEY, H. Feb. 19, 1945, No. 4153. [Class 137] A heating and ventilating system designed particularly for a double decked automobile vehicle has a single air'heater 1 of hot water type embodying a concentric fan and motor within an assembly of gi11ed or wire-wound tubes disposed in the hood above the driver's cab with its inlet 3 at the forward edge of the hood, the heated air being distributed through ducts 4, 5, 7, 9, 10, to outlets 14, 15, at a number of points at or near floor level on both decks, those on one side preferably lying intermediately of those on the other. In a modification a transverse duct feeds an outlet at each side of the front of. the upper deck and a central vertical duct leads to an outlet about seat level on the lower deck. The heater may be as described in Specification 371,878, and the ducts arranged in the side walls as in Specification 444,205. An electric heater such as described in Specification 529,865 is referred to in the Provisional Specification.
Patent GB-771534-A (GB)
Title: Improvements in and relating to circuit arrangements supplying electric arcs
Inventor: STEELE OWEN STEVENSON
IPC: H05B7/00
Filed: 1955-02-07
Abstract: 771,534. Automatic control systems for electric arc furnaces. BRITISH THOMSONHOUSTON CO., Ltd. Feb. 7, 1955 [Feb. 12, 1954], No. 4220/54. Class 38 (4). In order to reduce current surges in an A.C. arc furnace, variable impedances, included in oppositely-conducting circuit branches through which the electrodes are supplied, are controlled in accordance with the arc current, the level of control being set by a reference voltage source. Thus, the electrodes 1, 2, 3 are supplied from three-phase lines 4, 5, 6 through a transformer 7, a fixed impedance 21 and saturable reactorrectifier pairs 8, 9, 10 in each supply phase. Are current signals from transformers 16 are rectified to give a combined control signal in a common control winding 115 for the reactors, the control level being set on a resistor 20 in circuit with winding 115 and energized from a reference source 18, 19. A common bias winding 111 for the reactors is energized from a potentiometer 14. In a modification, Fig. 1 (not shown), separate arc current signals are derived for energizing separate reactor control windings, and separate control level sources and biasing windings may also be employed. In a second modification, Fig. 3 (not shown), pairs of gas-filled valves connected in reverse parallel replace the reactor-rectifier pairs, the valve grids being controlled either separately or jointly by separate or combined arc current signals in conjunction with a control bevel signal derived from a reference source.
Patent GB-1465744-A (GB)
Title: Attaching fibrous connective tissue to bone
IPC: A61F2/02
Filed: 1974-01-30
Abstract: 1465744 Making porous plugs ETHICON Inc 27 Jan 1975 [30 Jan 1974] 04280/74 Heading B3A [Also in Division A5] A bone implant comprises a tapered porous plug 3. In a preferred method of manufacture, titanium wire of 20 to 200 Ám. diameter is wound on a fine mandrel to provide a coil, pulled off the mandrel and extended so as to produce a series of helical regions. This wire is then packed into a suitably shaped die, compacted, and heated in a vacuum or inert gas so as to sinter the wire into a compact body. Preferably as many pores as possible in the sintered body should have a diameter or width of 100 to 400 Ám. Winding the wire on the mandrel and extending it as described above avoids forming dense regions in the structure. Such plugs may be used for attaching fibres such as artificial tendons or ligaments to bone. As shown in Fig. 2 the plug is frusto-conical in shape with an axial bore 6 to receive the fibres 2 which are held in place by a pin 8 lying in a groove 7. Alternatively (Fig. 3, not shown), the plug may be a triangular prism.