baber/WOPTO huggingface dataset:
Patent GB-276303-A (GB)
Title: Incandescent cathode rectifiers
IPC: H01J17/04
Filed: 1927-04-21
Abstract: 276,303. Meyer, F., and Spanner, H. J. Aug. 20, 1926, [Convention date]. Vacuum tubes.-In rectifiers with an incandescent cathode and a number of anodes, reverse discharges and discharges between the anodes are prevented by plates between the anodes at a distance from them equal to, or a small multiple of, the mean free electron path in the gas. The plates may be of insulating material or, in rectifiers for lower voltages, of thin insulated metal or silvered insulating material, the latter being used particularly in small rectifiers with gas purified by a getter. The cathode 1, Fig. 2, may be between plates 3 between two anodes 2 or, for lower voltages, above a single plate between the anodes. A cylindrical container 6, Fig. 6, may be divided by insulating plates 3 into as many compartments as there are anodes 2. the gap between the container and the plates being small so that the container assists in the screening of the anodes. The cathode may be arranged in the free space above the anodes, straight lines between the cathode and each anode not intersecting the screens in rectifiers for lower voltages but intersecting a transverse extension of the screen in high-voltage rectifiers. In rectifiers for high currents and voltages, each anode is flat and has screening plates on both sides, the cathode being between or above the anodes. Specifications 274,026 and 275,550 are referred to.
Patent GB-345516-A (GB)
Title: Method of collecting articles produced in one machine and utilising them in another
IPC: B65B35/04
Filed: 1930-04-04
Abstract: 345,516. Feeding articles from stacks or piles. UNIVERSELLE CIGARETTENMASCHINEN FABRIK J. C. MULLER & CO., 48, Zwickauerstrasse, Dresden, Germany, April 4, 1930, No. 10820. Convention date, Jan. 13. [Class 117.] Articles produced in one machine, e.g. boxes made in a box-making machine, which are to be collected or stacked for utilization in another machine, e.g. a packeting or filling machine, are delivered by the producing machine into a bin or collector in adjacent piles by intermittent displacement of the bin which is then positioned in the work-consuming machine where the separate piles of articles are discharged by corresponding intermittent displacement of the bin. As shown in Figs. 1 and 2, the boxes W are carried from the box-making machine, by a feed chain 1 to a track 3 and against a stop 4. A plunger 5 actuated by a cam on a shaft 12 geared to the feed chain then pushes each box through an opening 16<1> in a table 16 into the bin 44 detachably carried by a slide 17 having depending racks 18 mounted in the table; the'bin is positioned against a stop 17<1> on the slide and each box is pushed into the bin past spring- supported lugs 47<1> which support the pile of boxes in the bin. The racks 18 engage pinions 19 loosely mounted on shafts 20 and carrying clutch members 21 engaging complementary members 22 on spring- pressed pinions 23 also loose on the shafts 20 and geared to wide pinions 26 keyed to shafts 27. A shaft 33 geared to the feed chain is connected by worm gearing with worms 28 loose on the shaft 27 and carrying cams 42 engaging rollers on levers 41 carrying pawls 40 and mounted on levers 38 loose on the shafts 27 and connected to crank discs on the shaft 33. The pawls 40 are spring-controlled to engage ratchet wheels 43 fixed to the shafts 27 and when the worm wheels 28 have made one revolution a pile of boxes has been stacked in the bin and recesses in the cams 42 allow the pawls to engage the ratchet wheels which, through the pinions 26 &c. move the bin through the width of a pile for further articles to be fed into the space behind the completed pile. The completion of the filling of the bin may be notified by a bell &c., and the bin is then detached from the slide 17 which is moved back to its original position, the clutches 21, 22 allowing this movement. At the consuming machine similar gearing is used to move the bin the width of a pile of boxes when the feed chain 54, Fig. 4, carrying the boxes into the machine has removed a pile from a vertical channel 51 into which it is dropped when the lugs 47<1> are moved from pile-supporting position by fixed cams 55 which engage rollers 56 on the lug supports 47 as each pile arrives over the vertical channel. The cams 42 at either the producing or consuming machine may constitute the driving member of a counting mechanism.
Patent GB-279715-A (GB)
Title: Improvements in or relating to road vehicles more particularly to dust carts
IPC: B65F3/12
Filed: 1927-04-22
Abstract: 279,715. Krahn, H. April 22, 1927. Scavengers' carts.-In a scavenger's cart of the kind in which a dust bin is mounted on a tilting device adapted to tilt the dust bin to enable its contents to be discharged into the cart the tilting device, comprising a base c<2> and a counterweighted lever c is pivoted at a point b below the rim of the body of the cart and a hood a' is provided of such a shape and inclination that on emptying the contents of the dust bin into the cart the base c<2> closes the opening of the hood. The locking bolt of the cover of the dust bin is released by striking on a fixed stop n<1>, The dust bin is provided with guide members d<2>, Fig. 3, adapted to slide in grooves c<4> in the base c<2>,
Patent GB-986939-A (GB)
Title: Nuclear fuel element with carbon jacket
IPC: G21C3/04
Filed: 1962-03-21
Abstract: 986,939. Nuclear fuel elements. SIEMENSPLANIAWERKE A.G. FUR KOHLEFABRIKATE. March 21, 1962 [March 21, 1961], No. 10917/62. Drawings to Specification. Heading G6C. A nuclear fuel element comprises a fuel core surrounded by and intimately bonded to a graphite jacket having at least two concentric sealing zones in thermal conductive connection with each other and containing elemental carbon as sealing agent, the object being to provide a jacketed fuel element affording an improved degree of impermeability to fission products at high temperatures, particularly above 500‹C. Preferably at least one of the sealing zones consists of pyrolytic carbon obtained by passing a hydrocarbon gas over the carbon surface to be sealed while maintaining a surface temperature above 700‹C., or is formed by impregnating the surface layer with a liquid, e.g. a synthetic resin, which is heating to carbonise it, this step being repeated several times. Additionally, a porous graphite zone may be provided on at least one side of the inner sealing zone, the purpose of which is to increase the dwell time of the fission products in the jacket, this increase arising from the combination of sealing zones and porous zone providing a combination of large pore volume and low permeability. A porous zone may be located between the sealing zones and/or between them and the core. If the two sealing zones are placed directly above and firmly connected with each other, for example, by depositing a pyrographite layer upon an impregnated graphite layer, there is the advantage that the probability that the few through-pores in the two zones register with each other is slight. Suitable core materials are a multiplicity of fuel particles, for example, UC 2  granules joined with each other by a porous coke or other cementing structure, or a loosely poured mass of UC 2  granules; individual granules of UC 2  enveloped by a gas-tight pyrographite coating; or a fuel pellet consisting of UC 2  and graphite (e.g. U : C in an atomic ratio of 1 : 30 to 1 : 50) surrounded by a dense coating of pyrographite or sealed by liquid impregnation. Since the fission products from the core have a destructive action within a distance of 10 microns, the inner sealing zone should be spaced from the fuel material by a distance greater than 10 microns or the zone should have a thickness greater than 10 microns, preferably greater than 15 microns.
Patent GB-933732-A (GB)
Title: Improvements in multi-cylinder hydraulic motors
IPC: F03C1/30
Filed: 1961-03-24
Abstract: 933,732. Liquid-pressure engines. MACTAGGART, SCOTT & CO. Ltd., and R. C. RUSSELL. April 12, 1962 [March 24, 1961], No. 10919/61. Class 69 (2). In a reversible, radial cylinder hydraulic motor comprising pistons 4 formed on a hub 3 secured to a drive-shaft 2 and cylinders 5 carrying rollers 7 engaging cam tracks 11, 11a, distributing valve sleeves 12, 12a are located against rotation relative to housing 10 by pins 12b and are pressure balanced against hub 3. Either the shaft 2 or the housing 10 may be rotatable, in the latter case the inlet and exhaust passages being formed in the shaft. In the embodiment shown, shaft 2 is rotatable. Hydraulic fluid is admitted to cylinders 5 via passage 17, annular chamber 16 and passages 14, 8 and 9 and is exhausted via passage 14a, annular chamber 16a and passage 17a. Reversing may be effected by means selectively supplying either of passages 17, 17a. Pressure balancing between sleeves 12, 12a and hub 3 is provided by pockets 15 in the sleeves, located opposite ports 14, 14a and connected to inlet and exhaust passages 17, 17a via passages 19, 19a and annular chambers 18, 18a. The effective surface areas of chambers 16, 16a, 18 and 18a are equal as are those of pockets 15 and ports 14, 14a.
Patent GB-469846-A (GB)
Title: Improvements in centrifugal spraying machines
IPC: F16C27/08
Filed: 1936-04-16
Abstract: 469,846. Bearings for centrifugal spraying-apparatus. LORING, F. H. April 16, 1936, No. 10948. Addition to 444,833, [Group II]. [Class 12 (i)] In a centrifugal spraying or impregnating apparatus as described and claimed in the parent Specification, one of the bearings is supported on a rubber ring 16 to take the downward thrust, and a plurality of rubber washers 20 take the upward thrust. As shown, the bearing housing 2 has a self-aligning ball bearing 7 on which a thrust ring 6 is clamped by a sleeve 8 and a ball thrust race 23 is clamped to the tubular shaft 4. The housing 2 is fitted with a grease nipple 28 and duct 29 leading to the bearings. The bearing is rendered dust proof by felt washers 31.
Patent GB-200894-A (GB)
Title: Improved construction of appliance for cleaning windows and other surfaces
IPC: A47L13/46
Filed: 1922-04-19
Abstract: 200,894. Goddard, K. M. A. April 19, 1922. Holders with clamping-devices for mops.-An appliance for cleaning windows, &c., comprises two members 1, 2., hinged together at their rear ends and normally pressed towards each other by springs 8, the members being shaped triangularly at their front end and being provided each with a flat spring 12 to hold parts of a duster, &c., gripped by the members. A plate 9 may be formed with or attauhed to the member 2 to act as a stop for the member 1 when in the open position. The member 2 is formed with or has attached thereto a socket-piece 10 to receive the end of a handle 11, which may be telescopic but is preferably made in sections with socket-pieces.
Patent GB-1040663-A (GB)
Title: Improvements in or relating to yarn, cord, twine and ropes including plied yarns, cords, twine and ropes
Inventor: SLACK PHILIP TREVOR
IPC: D07B1/02
Filed: 1964-03-16
Abstract: Yarn or twine is produced by applying a simple unidirectional twist to a strip, tube or sheet formed from a polyalkylene e.g. polypropylene, and having a longitudinal molecular orientation equivalent to a draw ratio of 6 : 1 to 15 : 1, the amount of twist e.g. 0.5 to 1 turn per inch, in relation to the degree of orientation being sufficient only to disintegrate or split the strip &c. into an irregular network of fine strands or fibrils. The strip &c. may be extruded e.g. through a fish-tail die, from a melt of one or more polyalkylenes or polyalkylene copolymers with a minor proportion of another film-forming polymer, such as polystyrene, normally incompatible therewith; a cellular structure is obtained by inclusion of a blowing agent e.g. azodicarbonamide or a pigment with water absorbed therein, which forms or releases gas bubbles.  The thickness of the (hot-stretched) strip &c. is from 10-3 to 10-2 inches and may decrease laterally from the centre to the edges.  Yarn &c. may be intertwisted or plied to form cords or ropes.
Patent GB-469693-A (GB)
Title: Improvements in cavity bricks for building purposes
IPC: E04B2/14
Filed: 1936-04-16
Abstract: 469,693. Cavity bricks. HEDINGER, F. H. April 16, 1936, No. 10996. [Class 87 (i)] A cavity brick comprises a number of spaced parallel stretcher elements a, b, c united by webs adjacent each end, the webs d and e at each end forming complementary keys dl and recesses e<1>, the recesses at one end being opposite to or alternating with those at the other end. The centre stretcher b may be thickened as at b<1>. The webs are preferably recessed on both upper and lower edges, as at h, to assist in ventilation, and grouting grooves i are provided on the upper edges of the two outer stretchers. Alternatively, one groove may be provided on each of the outer stretcher members on the upper and lower edges respectively, or the grooves may be provided on both the upper and lower edges of each outer stretcher member. An end brick is shown in Fig. 5. Specification 414,940 is referred to.
Patent GB-553765-A (GB)
Title: Improvements in or relating to the production of textile fibres
IPC: D01B9/00
Filed: 1941-08-29
Abstract: 553,765. Treating flax straw. FRAZER & HAUGHTON, Ltd., and BUTTERWORTH, E. Aug. 29, 1941, Nos. 11073/41 and 2794/42. [Classes 120 (i) and 120 (iii)] [Also in Group IV] Flax straw, especially unretted flax straw, from which line fibre is to be extracted by mechanical means, is pretreated by subjecting it for a relatively short time to the joint effect of heat and aqueous moisture, e.g. by steaming, so as to cause condensations or deposit of moisture on the fibre layers limited to a degree such that the fibre layers are moistened and softened while the woody core remains comparatively unaffected; the differential moistening effect thus obtained reduces or obviates brittleness and cutting of the fibre during the mechanical treatment and avoids undue wetness or softening of the woody core which would give difficulty in separating it from the fibres. Straw having a moisture content of the order of 11 to 14 per cent by weight of the straw is subjected to steaming for about half a minute to about five minutes and the treatment may increase only or mainly the moisture content of the fibe layers so that the total moisture content is about 13 per cent to 15 per cent. The straw may be heated and then subjected to moistening in a saturated or nearly saturated atmosphere or to moistening by a spray of water or a steam jet. The straw may be conveyed through a steaming chamber 3, Figs. 1 and 3, by a conveyer 1 driven at a controlled speed by rollers 2; the chamber has a side slot 5 and end slots 4 and a controlled supply of steam is released in the chamber, below the top flight of the conveyer, from a pipe 6. The width of the chamber is such that the top or seed ends of the stalks do not pass through it or the slotted side wall may be inclined so that the top ends are given a progressive steaming treatment or it may be stepped so that the top ends receive a shorter steaming treatment or the part of the slot in the chamber receiving the top ends may be wider than the part receiving the remainder of the stalks. The steaming apparatus may be combined with a breaking and/or scutching machine.
Patent GB-1209074-A (GB)
Title: Separating 1,5-dinitronaphthalene from 1,8-dinitronaphthalene
IPC: C07C201/16
Filed: 1968-03-07
Abstract: 1,209,074. Dinitronaphthalenes. BADISCHE ANILIN- & SODA-FABRIK A.G. 7 March, 1968 [11 March, 1967], No. 11076/68. Heading C2C. 1,5- and 1,8-Dinitronaphthalene are separated from mixtures of the two in a ratio of 25-40% by weight of 1,5-dinitronaphthalene and 75- 60% by weight of 1,8-dinitronaphthalene by means of a selective solvent, wherein 1,5-dinitronaphthalene is first deposited by cooling from a solution in 75-100% by weight nitric acid of 1,5- and 1,8-dinitronaphthalene of from a solution of 1,8-dinitronaphthalene in 75-100% by weight nitric acid in which 1,5-dinitronaphthalene is partly dissolved and partly suspended, the 1,5-dinitronaphthalene is separated and then 1,8-dinitronaphthalene is separated from the remaining solution by dilution with water.
Patent GB-414839-A (GB)
Title: Improvements in fuel pumps
IPC: F02M1/00
Filed: 1933-04-13
Abstract: 414,839. Turning-gear. ELLIOTT, A. G., Darley Dene, Belper Road, Derby. April 13, 1933, No. 11098. [Class 7 (v).] The diaphragm fuel pump b<2> of an automobile has an auxiliary drive at starting from the starting motor g<4>. The discharge stroke is effected by a spring, and the pump is normally driven on the suction stroke by a cam on the engine shaft b<7>, acting on a push rod b<5>, which slides in a sleeve c. The latter operates the pump through a bell-crank lever b<4> and a link b<3>. A second sleeve e on the rod b<6> is connected by a link f to a sliding rod f<2>, connected by a link f<4> to a lever f<5>, which is oscillated by a tapered cam on the starter pinion by means of a ball-ended tappet g. The advance of the starter pinion at starting automatically brings the cam into operation.
Patent GB-831002-A (GB)
Title: Preparation of monothiooxamide
IPC: C07C279/28
Filed: 1956-07-30
Abstract: Monothio-oxamide H2N-CS-CO-NH2 is prepared by reacting cyanoformamide H2N-CO-CN with hydrogen sulphide, preferably at a temperature of between 0 DEG  and 100 DEG  C. and in presence of ammonium hydroxide and an inert polar solvent.ALSO:A vulcanizable composition comprises Neoprene type W, phenyl-b -naphthylamine, stearic acid, light-calcined magnesia, semi-reinforcing furnace black, zinc oxide and monothiooxamide as an accelerator.
Patent GB-1200436-A (GB)
Title: Improvements in stepped motion gearings
IPC: F16H49/00
Filed: 1969-03-03
Abstract: 1,200,436. Intermittent gearing. CONTRAVES A.G. 3 March, 1969 [5 March, 1968], No. 11234/69. Heading F2Q. A disengageable intermittent drive includes a continuously rotated input rotor 20 housing drive pins 21, 22 slidable in diametrically opposed bores parallel to the rotor axis AA, the pins being selectively movable magnetically from retracted positions to operative positions in which they can engage open slots 41 in a driven member 4 to advance the latter stepwise. The driven member 4 may be a rack bar with parallel slots 41, as shown, or a rotary member with radial slots. A polepiece 32 has a face 320 coaxial with the rotor 20 to provide a narrow air-gap therewith. A polepiece 31 has a part cylindrical face 310 centred on an axis B normal to the rotor axis AA. The polepieces 31, 32, rotor 20, and the pin opposite the face 310 form part of a ferro-magnetic circuit. The rotor is chamfered at 23 (Fig. 3, not shown) to concentrate the magnetic flux on the pins 21, 22. As a retracted pin 21 or 22 reaches top dead centre, it touches the face 310. If the magnetic circuit is operative the pin remains in contact with the face 310 as the rotor turns through 90 degrees, so that it drivingly engages a slot 41 during the next half turn. For the final 90 degrees, the face 310 pushes the pin back to its retracted position. With the circuit inoperative the pins remain retracted. Friction means 24 may hold the pins against random movement. In Fig. 1, the circuit is made operative by energizing a coil 3 having a core 30. In Fig. 4, the circuit includes a permanent magnet 35 and a shunt circuit including a gap 36 which is filled by a soft iron plug 5 to render the main ferromagnetic circuit inoperative. The plug 5 is movable by a pneumatic actuator 52, 53 controlled by a selector valve 54. A rack 4 is movable by two intermittent drives acting in opposite directions, a deflector ramp 42 at each end of the rack deflecting operative pins to limit travel.
Patent GB-390647-A (GB)
Title: Improvements relating to electrolytic cells
IPC: H01R11/28
Filed: 1932-04-20
Abstract: 390,647. Electrodes for electrolytic cells; direct connections between conductors. EVANS, D. J., Glen Cairn, Shipbourne Road, Tonbridge, Kent. April 20, 1932, No. 11328. [Classes 38 (i) and 41.] An electrode g is provided with a frusto-conical hole to receive a conducting rod a which is preferably ground to fit. The rod a is slidably mounted in an ebonite tube b screwed to the electrode. The tube b is mounted in the cell wall or cover e and secured by a nut j, ring i and washer h. The rod a is pressed into its socket by a cap-nut c if desired, through a spring. The nut c is provided with a hole m<1> to receive a plug connection. The electrode g may be provided with a backing or holder f.
Patent GB-569858-A (GB)
Title: Improvements in means for generating high-frequency electric oscillations
IPC: G01N29/07
Filed: 1943-07-13
Abstract: 569,858. Generating high - frequency oscillations. UNITED AIRCRAFT CORPORATION. July 13, 1943, No. 11404. Convention date, June 29, 1942. [Class 40 (v)] A voltage train generating means comprises a condenser, means for charging said condenser, an oscillatory circuit connected in parallel with said condenser, and a pair of output terminals for connecting said oscillatory circuit with a load circuit. The generator comprises a large condenser 11 which is charged to about one thousand volts through a resistance 12. Shunted across condenser 11 is an oscillatory circuit 13, 14 and the desired voltage trains are taken across 14 (or 13) and applied to the electrodes of crystal 3. The condenser 11 is also shunted by a grid-controlled gas-filled triode 15 normally biassed to cut-off by a source 16. On the application of a 60-cycle voltage through transformer 17, the triode 15 periodically conducts to discharge condenser 11 suddenly and generate 60 trains per sec. of voltage waves of a frequency (about 5 megacycles) determined by the combination 11, 13, 14. A lead 19 is connected to the synchronising terminal of a time base unit (not shown). Means for shortening the wave trains comprises a gas-filled triode 20 connected in series with a resistance 21 across the crystal 3. The triode is normally biassed to cut-off by a source 22. The grid of triode 20 is connected through a time-delay network 25, 26 to the anode of a one-stage amplifier 24 whose input is connected to one terminal of condenser 11. When condenser 11 discharges the consequent negative impulse drives amplifier 24 to cut-off and allows the upper terminal of condenser 26 to go less negative until after a time interval, at an instant when the anode of 20 is positive, valve 20 conducts and the oscillation is completely damped within a half cycle. This arrangement produces wave trains in which the individual waves throughout each train are in the same phase as corresponding waves of other trains, thus giving a stationary reflection pattern. In modifications, the means for shortening the wave trains are omitted (Figs. 3, 3a, not shown). Alternatively (Fig. 3a not shown) the condenser 11 may be discharged through a triode in series with a resistance, and the voltage across the resistance is used to start the oscillafory circuit into oscillation. The generator is described in its application to detecting flaws in solid objects by means of supersonic vibrations as described in Specifications 569,872, 569,8<7>3 and 569,874, [all in Group XXXVIII]. U.S.A. Specification 2,280,226 also is referred to.