baber/WOPTO huggingface dataset:
Patent GB-690156-A (GB)
Title: Improvements in sewing machines
Inventor: HAIDEGGER HANS
IPC: D05B21/00
Filed: 1951-07-10
Abstract: 690,156. Sewing - machines. EBAUCHES SOC. ANON. July 10, 1951, No. 16288/51. Class 112. Zig-zag-stichingattachments.-A member 18 carrying the presserfoot and means for actuating this member are enclosed between two plates 2 forming a housing mounted between the presser-bar and the needle-bar. In the embodiment shown in front view with one plate removed, the presser-foot is pivoted to the member 18 on an axis parallel to the line of feed, and the member 18 is pivoted at its upper end to the housing so as to swing across the line of feed. A finger lever 41 for adjusting the lateral motion of the member 18 is pivoted at 40 in the housing and is held in adjusted position by resilient engagement of a tooth thereon with the edge of the housing; its tail pivotally engages the upper end of a forked member 46 which embraces the member 18 and is oscillated by an eccentric 39, the distance between the limbs of the fork varying along their length so that there is more or less lost motion, according to the vertical position of the member 46, and this, in conjunction with the different position of contact between the members 46, 18, results in different amplitude of movement of the member 18. The eccentric 39 is rigid with a gear 37 meshing with a gear 30 driven through ratchet means from a spindle 22 to which is adjustably fixed an arm engageable by a pin clamped on the needle-bar. This pin moves the arm upwards only, and it is returned by a spring on the spindle 22 which spring also presses together a segment fixed to the spindle 22, the gear 30, and the housing plate 2 shown, the segment having pawl teeth to engage ratchet apertures 31 in the gear 30 and the plate 2 also having teeth engaging these apertures to prevent return motion. The housing is secured to a clamp on the presser-bar by means permitting horizontal adjustment in two directions at right angles. The operating arm is formed so that after it has made a fixed angular movement the needle-bar pin passes along its end without moving it further, so that the same action is obtained in machines having different needle strokes.
Patent GB-529739-A (GB)
Title: Improvements in or relating to vehicle suspensions
IPC: B60G17/027
Filed: 1939-06-02
Abstract: 529,739. Vehicle spring suspensions. SALMON, N. June 2, 1939, No. 16307. [Classes 108 (ii) and 108 (iii)] [Also in Group XXXI] In a vehicle spring suspension for wheeled or endless track vehicles, each wheel or track roller is carried by a pivoted arm fixed to a torsion bar, the individual torsion bars being interconnected by gearing or levers to a common torsion bar, the arrangement being such that the wheels or rollers will adjust themselves individually to the surface over which the vehicle is travelling. In the construction shown diagrammatically in Fig. 1 each road wheel is carried by an arm 1 fixed to a transverse, torsion bar spring 2, the inner ends of these bars being connected to arms 3 on the ends of a longitudinal torsion bar 4, the result being that when any one wheel rises the diagonally-opposite wheel also tends to rise, and the other diagonal pair tend to fall. In the construction shown in Fig. 5 applied to an endless track vehicle the vehicle is carried by load rollers 6, 6a running on the tracks (not shown). These rollers are mounted in pairs on rocking beams 7, 7a carried by arms 1 fixed to transverse torsion bars enclosed in casings 8, 8a, the inner ends of the torsion bars being connected by gearing, enclosed in casings 10, 10a to a longitudinal torsion bar enclosed in a casing 9. The vehicle body is fixed at 12a to the casings 8, 8a. In the construction shown in Figs. 6 and 7 the road wheels are mounted on upper and lower parallel links 13, one of the links for each wheel being fixed to a longitudinal torsion bar 14 or 15, the inner ends of these torsion bars being connected by gearing 18 to a transverse torsion bar 16. The front torsion bars 14 may be connected as shown to the upper links 13 of the front wheels, and the rear torsion bars 15 to the lower links 13 of the rear wheels. Means may be provided for varying the rate of springing of the torsion bars. As shown in Figs. 9 and 10 the torsion bar 23 is square and carries at spaced points along its length projections 25, 25a provided with shoulders 26, 26a adapted, after a predetermined rotation of the torsion bar, to come into contact with fixed stops 27, 27a on a fixed sleeve or housing 24. The projections and stops are so arranged that they come into action successively; thus as shown the shoulders 26a abut the stops 27a but the shoulders 26 are not yet in contact with the stops 27.
Patent GB-957293-A (GB)
Title: Improvements relating to gas-cooled nuclear reactors
IPC: G21C1/00
Filed: 1963-04-25
Abstract: 957,293. Nuclear power plant. CITY OF DUSSELDORF. April 25,1963 [May 30, 1962], No. 16343/63. Drawings to Specification. Heading G6C. In a nuclear power plant, two heat exchangers are provided, one inside the main pressure vessel with the reactor core and a second exchanger mounted in a subsidiary vessel. The reactor coolant gas e.g. helium is circulated round the.two exchangers through connecting pipes between the two vessels. The turbine working fluid is evaporated in the second exchanger and superheated in the first.
Patent GB-752078-A (GB)
Title: Fire backs
IPC: F24B1/195
Filed: 1953-06-17
Abstract: 752,078. Firebacks; dampers. UWINS, C. C. G. June 17,. 1954 [June 17, 1953], No. 16680/53. Class 126. The underside of the forwardly projecting part of a fireback for an open fireplace has at least one projection which is of smooth rounded vertical cross-section, and the imderside of which inclines slightly upwards towards the sides of the fireplace, part of the fireback at each side of the projection being smooth and uncorrugated. The inclined part 10 of a fireback is formed with three projections 16, 17, 18, and smooth side portions 21, the height of each projection above the line through the bottoms of the grooves between them decreasing trom top to bottom. The vertical part of the fireback is provided with corrugations 22, inclining slightly outwardly from the vertical centre line. These corrugations are all of the same depth and extend to the sides of the fireback. A single depression 23 is formed above them. In a modification, Fig. 4, the inclined corrugated part of the fireback forms the front face of a boiler 24, a back boiler flue having a damper 30 operated by a pawl and ratchet device 31, 32 being provided. The fireback may be used with a convection heater according to Specification 749,073, [Group XIII]. The fireback may be combined with adjustable side cheeks to fit fireplaces of differing widths.
Patent GB-548524-A (GB)
Title: A method of producing concentrated rubber latex
IPC: C08C1/10
Filed: 1939-06-07
Abstract: 548,524. Concentrating and purifying latex. AKTIEBOLAGET SEPARATOR. June 7, 1939, Nos. 16711 and 16712. Convention dates, June 10, 1938, and March 20, 1939. [Class 70] Latices of substantially uniform particle size are prepared by subjecting natural latex to a two-stage centrifugal separation process in one stage of which rubber particles of small size are separated from those of large size, the protein matter being separated from the rubber particles in the other stage. The stages of the process may be applied to the natural latex in either order. The rubber content of the concentrate containing the larger particles may be maintained constant by a regulating device controlling the speed of the centrifuge or the input of latex, the device being influenced either by the viscosity or by the specific gravity of the concentrate. To eliminate eddies &c. the latex may be fed under pressure into an inlet opening of the separator. The centrifuge may be provided with means for removing solids continuously or periodically from the outer part of the bowl.
Patent GB-210697-A (GB)
Title: Improvements in vapour lamps or lanterns for lighting and other purposes
IPC: F23D99/00
Filed: 1923-06-28
Abstract: 210,697. Jones, A. C., (trading as Messenger & Sons), and Kirby, A. June 28, 1923. Incandescent vapour burners; burners, mounting.-In an incandescent vapour burner in which the vaporizing-tube 10 terminates in a nipple 10<a> in a tubular member 6 supported by and communicating with one or more air inlet tubes 7, the tubular member 6 is provided at one or both ends with a preferably shutter-closed port 6<a> for permitting access to the nipple. The shutters may consist of sheet metal discs 11 hinged on or pivoted on lugs 6<b> on the member 6 and provided with a projection 13 to facilitate turning and with a bent step portion 15. In modifications, the shutters are made of wire gauze or one or both shutters may comprise two perforated discs pivoted together to form a hit- and-miss air regulator. The member 6 supports a mixing-tube 8 and one or more depending burner tubes.
Patent GB-283796-A (GB)
Title: Improvements in or relating to sound amplifiers for soundreproducing apparatus
Filed: 1927-06-24
Abstract: 283,796. Frenkel, R. June 24, 1927. Sound magnifying and directing appliances; speaking trumpets. - A sound amplifier of the kind resembling the human vocal organs comprises a straight conical sound aim b, a domed chamber c forming an extension of the arm b and corresponding to the pharyngeal cavity, and a lateral chamber f leading out from the arm b and corresponding to the mouth cavity. Depending vibrating tongues d corresponding to the uvula, may be provided between the chamber, c, f. The sound producing diaphragm a is near the end of the arm b. The device may be used as a speaking trumpet.
Patent GB-1099353-A (GB)
Title: Internal combustion engines and apparatus for purifying exhaust and crank-case gases therefrom
Inventor: FLINT JOHN CHRISTOPHER EGLINGT
IPC: F01N13/12
Filed: 1964-04-23
Abstract: 1,099,353. Treating exhaust and crank-case gases. DOWTY TECHNICAL DEVELOPMENTS Ltd. April 22, 1965 [April 23, 1964], No.16956/64. Heading FIB. Exhaust gases from a manifold 11 drive a turbine 14 coupled to a compressor 15 which withdraws crank-case gases through a pipe 18 and passes them, via a flame trap 29, to a pipe 20 where they mix with the exhaust gases, the mixture passing to an afterburner 22, via apertures 23, from which purified gases pass to atmosphere via a silencer 26. Additional fuel is either injected into the crank-case gases at 30, or the carburetter is set to provide an over-rich mixture. An air inlet valve 31 for the crank-case is provided. Ignition in the afterburner 22 may be effected by a sparking plug 28 or by a catalyst. Means may be provided to enable the mixture passing to the afterburner 22 to by-pass the jacket between the latter and an outer casing 21. Additional air may be supplied to the crank-case gases before they reach the compressor. The silencer and afterburner assemblies may be combined as a single unit. The turbine 14 may be omitted, the compressor 15 then being driven by the engine.
Patent GB-676576-A (GB)
Title: Improvements in or relating to the preparation of carbazole
Filed: 1950-07-07
Abstract: Carbazole is prepared from carbazole sulphate or carbazole sulphate containing material by decomposition with water in the presence of a water-immiscible solvent for the liberated carbazole.  The reaction temperature is preferably increased from 20-30 DEG  C. initially to the B.P. of the carbazole solution. Carbazole is recovered from the solvent by crystallization or evaporation in steam.  The solvent may be, for example, a hydrocarbon, e.g. benzene or toluene, ether, or chlorobenzene.  An example of the process is given.  Specification 676,575 is referred to.
Patent GB-1110616-A (GB)
Title: An oxidation catalyst and a process for the catalytic oxidation of olefinically unsaturated aliphatic compounds
IPC: B01J21/00
Filed: 1966-04-19
Abstract: One or more olefinically unsaturated compounds, e.g. propylene and isobutylene, or mixtures of these are oxidized in the vapour phase to acrolein or methacrolein or the corresponding unsaturated acids by reacting the olefins with oxygen or oxygen-containing gas at a temperature of 300-450 DEG  C. in the presence of a catalyst (see Division B1) which comprises bismuth molybdate with a Bi:Mo atomic ratio of from 1:24 to 3:1 and a formula BiaPbMocOd, where a is 0.5 to 36, b is 0 to 5, c is 12, and d is 36 to 76 when the other elements are in their fully oxidized state and the amount of oxygen will be reduced correspondingly if the elements are in the lower valency state, and copper in metallic or combined form in an amount of from 0.01 to 10.0% by weight based on the bismuth molybdate and calculated as metallic copper. The molar ratio of olefin to oxygen may be 4:1 to 25:1, and a contact time of 0.1 to 5 seconds may be used.ALSO:An oxidation catalyst comprises bismouth molybdate with the formula BiaPbMocOd where a is 0.5 to 36, b is 0 to 5, c is 12, and d is 36 to 76 when the other elements are in their fully oxidised state or less when the other elements are in a lower valency state, and copper in metallic or combined form in an amount from 0.01 to 10.0% by weight based on the bismuth molybdate and calculated as metallic copper.  To prepare the catalyst, the copper may be deposited onto the bismouth molybdate as a copper mirror by reduction of copper acetate with aqueous ammonium hydroxide and hydrozine hydrate, or bismuth molybdate may be impregnated with copper nitrate and calcined, or metallic copper powder may be mixed with bismuth molybdate, or acidic solutions containing copper and bismuth nitrates may be mixed with an aqueous molybdic acid/ammonium hydroxide solution, and the precipitate formed calcined.  The catalyst may be supported on silica gel, silicates, fuller's earth, pumice, kieselguhr, clays, mica, zeolites and porcelain, alumina, bauxite, thoria, beryllia, magnesia, magnesite, cerium oxide, titanium oxide, silicon carbide, zirconia, asbestos and graphite.
Patent GB-273104-A (GB)
Title: Improvements in and connected with self-opening die stocks, applicable also to screwing machines
IPC: B23G5/08
Filed: 1926-07-08
Abstract: 273,104. Hartwell, G. W. July 8, 1926. Screwing die heads; stocks and dies. - A self-opening die-stock or die-head for hand or machine use comprises a body part 1 having a depending boss 4 provided with radial slots 5 for guiding the dies 6 and a ring 8 rotatable thereon having cam-surfaces 19 for closing the dies and maintaining them in the cutting position. The ring 8 is rotatable with respect to a ring 7, the latter being rotatable on the boss 4, but is normally secured by two screws 20 which serve to adjust the cutting diameter, scales being provided on the two rings to facilitate adjustment. A cover-plate 21 is attached to the ring 8 by studs and nuts 23 and is provided with eccentric slots engaging projections 25 on the dies to open them. The rings 7 and 8 and the cover 21 are retained in the operative position by a spring- pressed plunger 31, to which is attached an arm 34, but when the end of the work comes in contact with a stop 35 adjustably secured to the arm 34 the plunger is lifted and the dies are opened by a spring 26 lying in an annular recess in the boss 4 and attached at each end to the boss and the ring 7 respectively. The stop 35 is provided with an anti-friction bearing 36. The rings 7 and 8 are removably attached to each other and to the boss 4 by coacting annular grooves and projections, detachment being prevented by the screws 20 and by a screw 14 respectively. The screw 14 engages an annular slot in the ring 7 which limits the open position of the dies. The dies may be opened by hand by pivoting a lever to the arm 34, the end of the lever being cam shaped so as to engage the body 1 and lift the arm and plunger 31, and a lever 9 is attached to the ring 7 for rotating it by hand. The handles 2, 3 may be removably screwed to the body 1 so that the latter may be used as a die-head in a lathe. Bushings and guides.-The cover-plate 21 carries a guide to keep the work central during screwing.
Patent GB-415235-A (GB)
Title: Method for the production of starch and glutenous materials
IPC: A23J1/12
Filed: 1933-06-15
Abstract: Starchy materials and glutenous materials in a baker's "sponge" (i.e. a mixture of flour, water and yeast at about 80 DEG  F., equal weights of flour and water usually being present) are separated by treating the aerated "sponge," either shortly before, at, or shortly after the "drop" in the "sponge," with a salt or like ferment retarding solution, whereby the glutenous material rises and the starchy material settles by gravitation, the glutenous material being then removed, and, if desired, washed with pure water to remove salt or starchy material adhering thereto.  The ferment retarding solution is preferably an aqueous solution of common salt, a suitable concentration being 10 ozs. per gallon, 1 gallon of this solution being used for each 10 lbs. of flour in the "sponge."  The strength of the salt solution is, however, raised according to the length of time the glutenous material is to be kept (the longer the time the stronger the solution) and the strength of the gluten in the flour (a stronger solution being required for a weaker or softer noncohering gluten), and should be sufficient to prevent degradation of the gluten during the period in which separation takes place.  The glutenous material obtained may be employed for adding to bread or other foodstuffs or flour in order to adjust the balance of the constituents to obtain a better food value.ALSO:Glutenous material, suitable for adding to bread or other foodstuffs or flour in order to adjust the balance of the constituents to obtain a better food value, is prepared from a baker's "sponge" (i.e. a mixture of flour, water and yeast at about 80 DEG  F., equal weights of flour and water usually being present) by treating the aerated "sponge," either shortly before, at, or shortly after the "drop" in the "sponge," with a salt or like ferment retarding solution, preferably an aqueous solution of common salt, whereby the glutenous material rises and is then removed, and, if desired, washed with pure water to remove salt or starchy material adhering thereto.
Patent GB-273341-A (GB)
Title: Improvements relating to machines for twisting and winding yarns
IPC: D01H1/00
Filed: 1927-06-28
Abstract: 273,341. Bemberg Akt.-Ges., J. P. June 28, 1926, [Convention date]. Twisting - machines with twisting - arrangements at delivery.-A machine wherein twisting spindles 3 of any convenient form and winding spools 1 are provided, consists of a series of steps A, B, C, each row of winding spools being one step higher than its row of spindles. The threads pass from the bobbins 2 through eyes 6 and guides 7 to the spools 1 which are carried in supports 5.
Patent GB-515717-A (GB)
Title: Improvements in or relating to separators
IPC: B01D45/14
Filed: 1938-06-10
Abstract: 515,717. Centrifugal separators. SOC. L'ATOMIC. June 10, 1938, No. 17296. Convention date, June 11, 1937. [Class 23] A separator for dealing with fine particles suspended in a gas has a rotor with passages through which the gas stream passes radially inwards ; the cross-sections of the passages decrease with increase of 'radius and the surrounding casing is provided adjacent its circumference with an inlet for the suspended matter. The resultant force on any particle, dependent on its density and size, tends to move it in a constant direction inwards or outwards. Passages 26 are formed in the rotor by vanes arranged between the plate 20 and the cover plate 28. The rotor is housed in a casing 16 with an inlet-pipe 6 near the end of which powdered material is admitted from the hopper 2 and is blown along suspended in gas which enters by the nozzle 8. The stream passes from the pipe 6 tangentially to the rotor through the openings 10, 12, 14 and after flowing through the passages 26 it is drawn off through an axially arranged pipe 30 by means of a fan 38. A valve 36 in the pipe 30 is employed to adjust the flow. The cross section of each passage 26 should be inversely proportional to the square root of the radial distance of the section from the centre of the rotor. This necessitates curved surfaces for the passage but the curvature is so slight within the length of the passage that for practical purposes plane walls may be used. The walls are polished to lower the frictional resistance to the flow. The entering dust-laden stream of gas is distributed round the rotor, and on particles of certain size and density the force of the stream of air will be balanced by centrifugal force. Where centrifugal force predominates, as on the heavy particles, they will be thrown out to the hopper 44, while the others will be carried inwards to the pipe 30, the fan 38 and the discharge outlet 42. Fan blades 32 are secured on the plate 28 to prevent leakage round the rotor. The hopper 44 has two valves with a chamber between them so that the first valve can be opened to pass separated material to the chamber, and then closed while the second valve is opened to secure the final, discharge. In the modification shown in Fig. 5 the gas with the light particles from the pipe 30 enters a chamber 58 with a filter 62 which holds up the particles. The clean gas is passed by the fan 66 back to the nozzle 8. Specification 490,393 is referred to.
Patent GB-890192-A (GB)
Title: An improvements in producing metallic magnesium from a magnesium oxide containing material
IPC: C22B26/22
Filed: 1960-05-17
Abstract: In the production of magnesium by the reduction at 1500-1600 DEG C. of lime and magnesia-containing material with ferrosilicon, the starting materials are proportioned so that the slag formed contains (by weight) 44-64% SiO2, 30-53% CaO and 3-14% MgO.  The magnesia-containing material may consist of magnesia obtained from sea water or calcined dolomite mixed with additional magnesia.
Patent GB-1135428-A (GB)
Title: Improvements in or relating to methods of applying radiant energy through heat sensitive materials to perform a manufacturing process
IPC: H01R12/62
Filed: 1966-04-21
Abstract: 1,135,428. Metal to glass seals. WESTERN ELECTRIC CO. Inc. 21 April, 1966 [21 April, 1965], No. 17469/66. Heading C1M. [Also in Division B3] In applying radiant energy through a heatsensitive material to perform a manufacturing operation, the material being damaged by heat at a temperature below that necessary for the operation, the energy is passed through a heat sink which is transparent to the radiant energy and is in contact with the heat-sensitive material. The manufacturing operation may be the formation of a metal-to-glass seal in close proximity to a heat-sensitive material. Suitable materials for the heat sink are given.
Patent GB-202463-A (GB)
Title: Improvements relating to mechanism for turning over leaves
IPC: B42D9/08
Filed: 1922-06-26
Abstract: 202,463. Nogueras, L. M. June 26, 1922. Leaf-turners.-A spindle 1 with cylindrical ends 2, 2<1> forms an uninterrupted screw upon which nuts 7 are adapted to travel. The nuts 7 carry rotatable leaf turning-members 11, and are constrained against rotation on the spindle by the engagement of bosses 9, formed on extensions 8 of the nuts 7, with a guide rod 10. A spring 15 urges the nuts 7 to the left, but they are normally held in position by the engagement of one arm 18 of a double-armed pawl 16 with the leading nut. The apparatus is actuated through the rope 5, which rotates the drum 3 against the pressure of a. spiral spring 4. On rotation of the drum, the pawl 16 is rocked to release the first nut, and the remaining nuts are retained in position by the engagement of the arm 18 of the pawl with the second nut. The first nut is then moved to the left by the thread, and when it reaches the abutment 13, a finger 12 on the member 11 is rotated, whereby the leaf is turned. Finally, the nut passes on to the plain part 2 of the spindle, and is retained there by the spring 14.