baber/WOPTO huggingface dataset:
Patent GB-420974-A (GB)
Title: Improvements in or relating to the construction of sectional buildings
IPC: E04D3/30
Filed: 1933-05-12
Abstract: 420,974. Portable buildings; roofs. HURDEN, E., The Gables, Harefield, and HURDEN, E., aforesaid, and WOODBRIDGE, F. C., 38, High Street, Uxbridge, both in Middlesex, (Representatives of HURDEN, A. P.), and BEESON, S. E., Rosemary, The Cloisters, Rickmansworth, Hertfordshire. May 12, 1933, No. 13919. [Classes 20 (i) and 20 (iv)] A sectional building of the kind described in Specification 395,831 has the roof sheets formed wholly or partly of steel, zinc or other metal corrugated in the direction of their length, the corrugations A, B extending from edge to edge of the sheets, which are bent over at any suitable angle transversely to the corrugations to form a ridge, each sheet running without a join from eaves to eaves. Specification 24381 /04, [Class 20], also is referred to.
Patent GB-888720-A (GB)
Title: Fueling of thermonuclear reactors
IPC: H02K44/08
Filed: 1960-04-21
Abstract: 888,720. Thermonuclear apparatus. UNITED STATES ATOMIC ENERGY COMMISSION. April 21, 1960 [May 21, 1959], No. 13984/60. Drawings to Specification. Class 39(4) A method of initiating and sustaining a thermonuclear reaction as described in Specification 880,124 comprises the further steps, after the reaction chamber has been filled with plasma, of setting one mirror field to be slightly stronger than the other mirror field, stopping the injection of a high energy molecular beam, and directing a beam of cold particles so as to enter the boundary of the plasma in the reactor through the stronger mirror at a point on a magnetic field line which passes through the interior of the plasma, the beam of particles being at an angle greater than # c  to the axis, where sin # c  = #1/R, R being the ratio of the maximum magnetic field in the mirror region to the maximum field between the mirrors, and adjusting the current of cold particles to deposit in the gas within the chamber an amount of fuel needed to sustain a steady state reaction temperature of about 60 Kev. The cold particles may be neutral particles or ions. Specifications 853,916 and 869,344 also are referred to.
Patent GB-122598-A (GB)
Title: Improvements in Flattening Rolls.
Inventor: SAHLIN AXEL
IPC: D06C15/00
Filed: 1918-08-28
Abstract: 122,598. Sahlin, A. Aug. 28, 1918. Straightening.-Rolled plates from a plate mill are straightened by passing between two sets of staggered rolls 1, 2 of which the upper rolls 2 are adjustable in a body and also independently. The bearings of the rolls 2 are suspended in two girders 5 which are counterbalanced by weights fixed to levers 8, and are moved vertically and simultaneously by worm gearing 11 and reducing-gearing operated by a motor. The are separately adjusted by nuts 19 on screwed spindles 20 passing through threaded sleeves 17, 18. Any roll 2 can be removed without disturbing the remainder by raising the girders 5 and lowering the spindle 20 until a cotter 21 can be withdrawn and the roll lifted out. The lower rolls 1 are gear driven.
Patent GB-930713-A (GB)
Title: Improvements in the progressive forging of multi-throw crank-shafts
IPC: B21K1/08
Filed: 1961-04-19
Abstract: 930,713. Forging crank-shafts. SCHLOEMANN A.G. April 19, 1961 [May 20, 1960], No. 14103/61. Addition to 777,151. Class 83 (4). The invention modifies the method disclosed in the parent Specification of progressively forging a multi-throw crank-shaft which involves the three operations of forming the shaft bearings from a round bar, forming flat surfaces equal to the crank-pin width on the thickened portion of each crank throw between the bearings at the crank-web locations, and finally forging the webs and crank-pins. The modification introduces a further step between the first and second of the steps previously employed in that, prior to the flattening operation, the thickened portion is displaced downwardly from its axis of symmetry about the shaft axis, as shown in the full lines of Fig. 7, to an eccentric position, when it takes the form shown in the chain-dotted lines 16a, 17a. The flattening operation is then effected in a die-cavity 19 arranged as shown in Figs. 8 and 9, in which a filling-piece 18 is inserted so that the metal may flow only in the direction of the crank-webs, the cavity being such that the metal may flow a distance from h, Figs. 7 and 8, to h 1 , Fig. 9, just short of an abutment member 7 shaped to form the crank-pin 10 in the final operation when a forked punch 8, Fig. 5, completes the forging of the crank-pin and webs, the surplus metal being forced upwardly as shown by the arrows 11, thereby eliminating the formation of wrinkles at the points marked x; this results from the angle α<SP>1</SP>. Fig. 7, being less acute prior to the flattening operation than it is when the thickened portion is flattened whilst still symmetrical about the shaft axis.
Patent GB-108938-A (GB)
Title: Improvements in or relating to the Manufacture of Phenol.
Inventor: TERRISSE HENRI
IPC: C07C37/50
Filed: 1916-10-04
Abstract: 108,938. Terrisse, H. Oct. 4, 1916. Oxybenzoic acids.-A mixture of isomeric sodium or potassium oxybenzoates is obtained by heating mixtures of the three cresols with caustic alkali and oxidizing-agents (oxides of copper, lead, manganese, barium, iron, &c.). A mixture of isomeric oxybenzoic acids is obtained by acidifying the mixture of alkali salts. Phenol is prepared (1) by heating the abovementioned mixture of alkali oxybenzoates in a stream of carbon dioxide at, say, 300‹ C., or (2) by heating the above-mentioned mixture of free oxybenzoic acids in a solvent or medium, for example anthracene oil, at, say, 250‹ C.
Patent GB-1224727-A (GB)
Title: Process and apparatus for the production of fibres of thermoplastic material either organic or mineral
IPC: C03B37/00
Filed: 1969-03-18
Abstract: 1,224,727. Glass fibres. COMPAGNIE DE SAINT-GOBAIN. 18 March, 1969 [21 March, 1968], No. 14126/69. Heading C1M. Glass fibres are produced by picking up droplets 7 from a supply of molten glass 4 on projections 3 of a rotating body 1 (preferably a hollow revolving cylinder on a horizontal axis), allowing the droplets to form filaments 8, and attenuating the filaments to fibres. The attenuation may be by a gas blast or jets, possibly from a burner, and preferably from a chamber 6 (via apertures 5) in the revolving drum. The supply of molten glass may be a bath, or a " sheet " of molten glass flowing over a weir (Fig. 2, not shown) or over a roller 11 (Fig. 8). A blower 9 removes the fibres from the drum. Alternatively, the gas blast may be provided by a tangential burner 19 (Fig. 8), which may be extended as at 22A. In either embodiment heating means 20 and/or 23 may be provided for heating the outside of the drum and the droplets and the inside of the drum may be cooled by a spray or circulation of cooling fluid.
Patent GB-568498-A (GB)
Title: Improvements in and relating to automatic bread toasters
IPC: A47J37/08
Filed: 1942-10-08
Abstract: 568,498. Electric switches. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 8, 1942, No. 14160. Convention date, Oct. 8, 1941. [Claas 38 (v)] [Also in Group VI] In an electric toaster in which the slices are supported on carriers 18a, Fig. 3, between heating elements 16, Figs. 1 and 2, a carriage 24 connected to the slice carriers being depressed by manipulation of a knob 31 against the action of a spring 28 to lower the slices to a toasting position, latching means are provided for holding the carriage in the lowered position untilreleased by a bimetallic thermal element 63, Fig. 10. This element is guided laterally in the middle, but is not fixed, and is heated by a separate heater 71, and when hot one free end moves to the position shown in Fig. 9 to disengage one latch hook 60 from a pivoted bar 48 and to open the switch 76 of its heater. The pivoted bar 48 is held by another latch hook 61, while the thermal element cools down, the switch 38, Fig. 3, of the toasting elements being held closed during this time. When the thermal element is cold, the hook 61 is moved, the bar 48 rises and the switch 38 is opened. The bar 48 has latching notches 51, 52, Fig. 3, engaged by a catch on a member 41 having a limited sliding and hinging connection with the front of the carriage 24. The bar 48 is lowered by the lowering of the carriage and when unlatched permits the carriage to rise and carry the toasted slices to the upper position. The period of heating is adjusted by setting an abutment 55d, Fig. 1, for the other free end of the thermal element, by means of a lever 90 with a knob 93, Fig. 2, movable over a scale at the front of the casing. This scale may indicate light or dark toasting. Another knob 98 is associated with a lever and catch arrangement, Fig. 7 (not shown), for holding the carriage down after completion of toasting if it is not desired to remove the toast. The upward movement of the carriage is restrained by a dashpot, Fig. I (not shown).
Patent GB-611858-A (GB)
Title: Improvements in or relating to electrical networks for use on alternating currents
IPC: H03F1/06
Filed: 1946-05-10
Abstract: 611,858. Impedance networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and GREEN, E. May 10, 1946, No. 14219. Drawings to Specification. [Class 40 (viiil] A resistance which increases with A.C. voltage is provided by inverting, by means of a quarter-wave line, the impedance of an element whose resistance decreases with voltage. This may be of the material known under the Registered Trade Mark " Metrosil." Capacity in the element may be neutralized by adjusting the length of the line and other linear or non- linear resistances may be embodied to give a desired law of variation.
Patent GB-434374-A (GB)
Title: Improvements in two-stroke cycle internal combustion engines
IPC: F02B75/18
Filed: 1934-05-11
Abstract: 434,374. Two-stroke-cycle engines ; pumps. McCLELLAND, W., 86, Cavendish Drive, Rock Ferry, Cheshire. May 11, 1934, No. 14223. [Class 7 (ii)] Two or more power cylinders and two or more pump cylinders are mounted on the crankcase. A pump cylinder is diametrally opposite each power cylinder and the two cylinders contain pistons of substantially equal mass always at equal distances from the crank-shaft axis. The pump pistons are connected to crank-pins arranged at 180‹ with respect to those to which the power pistons are connected. Each pump space is alternately in communication with the crank chamber and with the combustion space of a neighbouring cylinder by way of a passage 24 and a port 22 in the piston skirt of the power piston.
Patent GB-136107-A (GB)
Title: Improved Pipe Joint.
IPC: F16L13/11
Filed: 1919-06-05
Abstract: 136,107. Melville, Dundas, & Whitson, and Goodwin, C. June 5, 1919. Sleeve joints. - Reinforced-concrete pipes 1 2 and 1<a>, 2<a> with a sheet-steel liner 4 are jointed by means of a reinforced sleeve 5 which has been cast with its axis vertical to prevent eccentricity of the reinforcement. The joint is sealed with bitumen 3 contained in an undercut recess, and covered with grouting 6 poured in through an orifice.
Patent GB-426103-A (GB)
Title: Improvements in or relating to a free wheel mechanism
IPC: F16D41/08
Filed: 1934-05-11
Abstract: 426,103. Free - wheel clutches. FREYLER, A., 2, Wehrgasse, Vienna. May 11, 1934, No. 14315. [Class 80 (ii)] Relates to a free-wheel clutch for motor vehicles of the type comprising frictional clutch members which transmit a bi-directional drive at low speeds, while at higher speeds a cage for the clutch members is held by a centrifugal device to permit free-wheeling. According to the invention, the centrifugal device comprises two pawls symmetrically arranged about the axis of rotation of the clutch and coupled together. In the form shown, the casing 15 mounted on the driving shaft 1 carries rockable friction pawls 16, which pass through slots in a loose sleeve 17 to engage a sleeve 10 connected through a claw clutch 7 to the driven shaft 4. The sleeve 17 carries a detent 26 to engage a dog 25 on the pawl 20, which is pivoted to the driving casing 15 at 19 and has pin-and-slot engagement with the other pawl 21. The tails of both pawls are formed as weights 22, normally pressed inwardly by springs 28, so that the dog 25 is out of engagement with the detent 26. If the driving member 15 is rotated anticlockwise, Fig. 2, the pawls rock and grip the sleeve 10, the sleeve 17 being thus rotated slightly clockwise so that the detent 26 is a little behind the dog 25. When the speed of the driving shaft increases and the weights 22 move outwards, the dog 25 is moved inwardly, but clears the detent 26. Free-wheeling now occurs, since on reducing the speed of the driving shaft the sleeve 10 rocks the pawls 16 back to the disengaged position, but is prevented from rocking them to the opposite engaging position, because the sleeve 17 rotates to bring the detent 26 against the dog 25. When the speed of the driving shaft is greatly reduced, the springs 28 overcome the centrifugal action of the weights 22 and disengage the detent 26 to permit engine braking. If the driving member is thereby speeded up again sufficiently to make the weights 22 fly outwards again, the inclined surfaces 25<1>, 26<1> of the pawl and detent engage and remain even more firmly in engagement if the throttle is again opened. Freewheeling is then not possible again until the speed of the vehicle, and thus of the driving shaft, have both been greatly reduced. Specifications 383,701 and 395,151 are referred to.
Patent GB-423408-A (GB)
Title: Pull-off mechanism for sewing machines
IPC: D05B3/06
Filed: 1934-05-14
Abstract: 423,408. Sewing - machines. FAIRWEATHER, W. C., 65, Chancery Lane, London.-(Singer Manufacturing Co.; Elizabeth, New Jersey, U.S.A.) May 14, 1934, No. 14454. [Class 112] A pull-off for a pyramid-purl lock-stitch buttonhole-sewing machine comprises a blade 136 which engages the bobbin thread between the thread-plate 53 and exerts a gradual wedging action. The pull-off is loosely mounted on the hook-shaft 83 and is oscillated by a crank 139 so that its speed is less than that of the hook and it is retarded towards the end of its stroke. While the bobbin thread is being pulled, the hook is rotating idly. The blade edge 138 prevents bowing of the needle thread on the side remote from the hook 85. During the barring operations, additional thread is pulled-off by an auxiliary pull-off 143 which is brought to its operative position shown in full lines, by a linkage connected to the mechanism controlling the amplitude of needle vibrations.
Patent GB-257981-A (GB)
Title: Process for the production of soluble fluorides
IPC: C01D3/02
Filed: 1925-06-04
Abstract: 257,981. Mond, A. L., (Chemische Fabrik Griesheim-Elektron). June 4, 1925. Ammonium fluoride.-Fluorspar is heated with an acid such as hydrochloric or nitric acid in presence of silica and an insoluble fluoride such as barium or sodium fluoride so as to form an insoluble silicofluoride, which is separated and treated in known manner with ammonia to obtain ammonium fluoride and a residue of silica and barium or sodium fluoride which is used again.
Patent GB-1095796-A (GB)
Title: Pesticidal compositions
IPC: A23B7/153
Filed: 1965-04-06
Abstract: Post-harvest deterioration of harvested fruit and vegetables is inhibited or prevented by treatment with a spray or dip of potassium azide.  Sugar beet and potatoes may be dipped into an aqueous solution containing 1/10 to 5% potassium azide, the toxicity of the potassium azide is usually dissipated within one week while the preservation effects are permanent.  To delay germination of seeds and kill undesired associated fungi, the seeds are treated with potassium or sodium azide, in the form of a dust or a aqueous dip or spray.ALSO:Potassium azide is employed as an agricultural chemical for use as a pre- or post-emergent herbicide, defoliant, growth inhibitor of plant parts, preventer of post-harvest deterioration of edible plant parts, germination delayer for seeds, protector of plantable plant parts from disease and as a pesticide for killing fungi, soil insects or microorganisms present in soil.  In a modification, sodium azide replaces potassium azide for use for delaying the germination of seeds.  Potassium azide may be applied to soil or to the aerial parts of the plants to kill all plants in an area of soil.  Potassium azide may be applied in the form of a solution, dispersion, dust, spray, dip or granules.  The soil life of a herbicide capable of being metabolized by soil micro-organisms is extended by providing in the vicinity potassium azide to kill the micro-organisms.  The potassium azide and the herbicide (e.g. 2,4-dichlorophenoxy-acetic or -butyric acids and esters thereof, 2-methyl-4-chlorophenoxy-acetic or -butyric acids and esters thereof, dichloropropionic or trichloroacetic acid and salts thereof, dinitrobutylphenol, dinitro-orthocresol, allyl alcohol, isopropyl N-phenyl carbamate, isopropyl N-(3-chlorophenyl) carbamate, secondary butyl N-(3-chlorophenyl) carbamate, ethyl N, N-di n-propylthiolcarbamate, propylethyl n-butylthiolcarbamate, 2-chloroallyldiethyldithiocarbamate, secondary butylphenoldisodium salt of 3,6-endoxohexahydrophthalic acid, 2-chloro-N,N-diallylacetamide, N-arylphthalamic acid and its esters and salts and aminotriazole) are incorporated in granules, which are preferably coated with a semi-permeable film or shell.  Potassium azide in contact with soil decomposes into potassium- and nitrogen-containing products and is thus useful as a fertilizer and may be included in mixed fertilizers.
Patent GB-853729-A (GB)
Title: Improvements in or relating to methods for producing ultra-pure silicon
IPC: C01B33/035
Filed: 1958-05-07
Abstract: <PICT:0853729/III/1> Modification of the process of the parent Specification for the deposition of silicon on a carrier of silicon, wherein the deposition takes place in a glass or quartz vessel at least part of which is transparent and is maintained at a temperature of 300-800 DEG C. throughout the deposition.  The vessel is heated to the desired temperature by heat radiated from the carrier alone or together with heat from a surrounding electric furnace.  In the former case the vessel may be provided with means for conserving the radiant heat, e.g. the outer surface of the vessel, except for one or more narrow strips, may be roughed, may be coated with aluminium oxide, or may be provided with a mirror coating of silver or gold. Alternatively the vessel may have radiant heatabsorbing foreign bodies, e.g. of gold or molybdenum distributed therein so as to preserve its transparency, or it may be surrounded by a separate reflector.  As shown heating is provided solely by the passage of an electric current through two silicon rods 3 and a graphite bridge 5 enclosed in a quartz bell 2 provided with a gas inlet and outlet (not shown), the quartz bell being surrounded by a tubular reflector of polished aluminium having a vertical viewing slit 12 and an upwardly hinged aluminium lid 9.
Patent GB-940408-A (GB)
Title: Improvements relating to rotor blades provided with jet engines
IPC: B64C27/18
Filed: 1962-04-16
Abstract: 940,408. Helicopter rotor blades. DAIMLER-BENZ A.G. April 16, 1962 [April 18, 1961], No. 14648/62. Heading B7W. [Also in Division F1] A helicopter rotor blade B has a tip mounted ramjet engine T held in place by a cable S. The engine mounting foot F has a base piece 12, having recesses 13, into which are fitted pins 15 mounted on a headpiece 14 in the blade. The cable S is passed around a pulley 16 and is anchored at the blade root to a part 17, into which is threaded a bolt 19 to adjust the cable tension. Alternatively, a single run of cable may be used, in which case the cable ends are attached to tapered or fir tree shaped pieces engaging in complementary recesses in the base piece and tensioning device. The cable may be attached to the rotor shaft and the blade may be made of plastic.
Patent GB-793291-A (GB)
Title: Improvements relating to mandrels for carrying yarn package supports
IPC: B65H54/54
Filed: 1956-05-11
Abstract: 793,291. Winding yarns. CELANESE CORPORATION OF AMERICA. May 11, 1956 [May 11, 1955], No. 14709/56. Class 120(2) [Also in Group XVI] A mandrel for carrying a yarn package support comprises a member having surfaces extending along and inclined to the axis of an arbor on which it is mounted for free rotation, bars tapered to match the inclination of the surfaces mounted thereon for longitudinal movement in contact therewith, the bars having outer surfaces adapted to engage the inside of the package support, and means for moving the bars along the surfaces to cause outward movement of the bars into operative engagement with the inside of the tube. Bars 19 are pressed against inclined surfaces 21 on a barrel 13 mounted on an arbor 14 by grease-seal bearings 16, 17 by means of coil springs 28 encircling the barrel 13 and bars 19. Screws 20 prevent the bars 19 from leaving the grooves 18, Fig. 6. A pin 34 on each bar 19 passes through an aperture in the barrel 13 and into apertures 37 in a ring 38 mounted in a groove 39 of a sleeve 40 slidably mounted in thebarrel 13, and having a groove 41 to receive the ends of the bars 19. The sleeve 40 is normally urged to a position in which the mandrel 12 is expanded to hold a package support 11 by coil springs 42 between the sleeve and the barrel. The mandrel 12 is contracted by means of a threaded nut 44 with a handle 46 mounted on a threaded portion 47 of the arbor 14. A portion of the nut 44 is received within the sleeve 40 while a flange 48 of the nut 44 is faced with friction material 49. When the mandrel is suspended as in Fig. 5, movement of the handle 46 brings the facing 49 in contact with the sleeve 40 and stops the rotation of the mandrel. Further movement of the handle 46 moves the sleeve 40 against the action of the springs 42 and moves the bars 19 to the contracted position.
Patent GB-645503-A (GB)
Title: Improvements in or relating to combustion chambers of compression-ignition internal-combustion engines
IPC: F02B19/14
Filed: 1948-06-01
Abstract: 645,503. Direct-injection oil engines. GREY, J. C. June 1, 1948, No. 14750. [Class 7(iii)] In a compression-ignition engine an annular air cell 17 surrounds the mouth 16 of the combustion chamber 13 and the air compressed therein during the compression stroke is discharged from an annular mouth 20 into the gas-stream during the firing stroke. The mouth 16 preferably has a sharp edge, and by altering the relative position of the mouths 16, 19, the compressed air may issue transversely to, or with a substantial component in the direction of, the gas stream issuing from the combustion chamber.