baber/WOPTO huggingface dataset:
Patent GB-287356-A (GB)
Title: Improvements in or relating to mechanical ore roasting furnaces
IPC: C22B1/02
Filed: 1927-06-02
Abstract: 287,356. Harris, J. June 2, 1927. Charges, agitating ani conveying.-In a superposed hearth ore-roasting furnace, means are provided for preventing or reducing the formation of dust by screening the ore from the furnace draught during its passage from one hearth to another and by providing, in the case of a cylindrical furnace. separate flues for the ascending air or gases. As shown in Fig. 1, the furnace comprises superposed hearths 11 - - 14 provided with rabbles 16, 17, secured to a central shaft 15, and formed alternately with central and peripheral openings for the downward passage of the ore. These openings are fitted with downwardly extending fixed conduits 21 closed at the lower end by rotary plates 22 each carrying a second conduit 23 which, when it registers with the conduit 21 forms a. continuous channel for the passage of ore from one hearth to the one below. In connection with the hearths having central openings, the plate 22, Fig. 5, is formed as a disc secured to the shaft 15, while in the case of those hearths having peripheral openings, the plate 22 is in the form of a curved strip carried on the end of the rabble arm 16, Fig. 9. When the furnace is of rectangular cross-section, the upward passage of the air or gases is effected through the usual corner flues disposed out of the path of the rabble arms, but in the case of cylindrical furnaces, special gas passages are provided, each comprising, as shown in Fig. 3, a metal flue having a central part 25 built into the furnace wall 10 and enlarged upper and lower portions 27, 26 replacing part of and having an outlet below the respective hearths 13, 14. These flues are formed with radial partitions 28, Fig. 2, and are arranged on opposite sides of adjacent hearths to cause the gases to take a zig-zag course through the furnace to the outlet 20.
Patent GB-438525-A (GB)
Title: Improvements in and relating to aircraft with rotative wings
IPC: B64C27/02
Filed: 1934-05-16
Abstract: 438,525. Rotary aircraft wings. CIERVA AUTOGIRO CO., Ltd., Bush House, Aldwych, London, and BENNETT, J. A. J., Genista, Newton Mearns, Renfrewshire. May 16, 1934, No. 14817. [Class 4] Relates to aircraft with rotary wing systems adapted for auto-rotation in flight and in which means such as an engine-driven airscrew is provided for forward propulsion and means such as a disconnectable driving connection between the engine and rotor for imparting an initial rotation to the rotor. According to the invention the root of each blade is attached to the hub member by means which include a pivot the axis of which is inclined to the longitudinal blade axis, in addition to two primary (flap and drag) pivots the axes of which are substantially perpendicular to the longitudinal blade axis and are not parallel to one another so that the blade is able both to flap and swing relatively to the hub in the general plane of rotation, the flap pivot being substantially perpendicular to the rotational axis. By this means the pitch angles of the individual rotor blades are diminished when torque is applied to the rotor and are increased automatically when the torque vanishes so as to give a quick substantially vertical ascent, the angles being eventually restored to normal value for flight. As shown in Fig. 1, the drag link 21 is bored at 22 to receive the flapping pivot pin and is also bored vertically to receive the drag pivot pin 23 which is secured to the link by a bolt 24, the blade movement about the drag pivot being limited by stop means. On the pin 23 is pivoted an H-section forging 28 the jaws 28<a>, 28<b> of the forked inner end of which house tapered roller-bearings 25, 26, 27, 25<x>, 26<x>, 27<x>. The link is slotted at 21<x>, Fig. 4, to embrace the web 28<x> of the forging with clearance to allow 3‹ total movement on the pivot. The outer end of the forging is in the form of a boss 28<c> bored at an angle to the drag pin axis to receive a bushing 31 in which rotates a stub-axle 32 attached to the wing root socket 34 and retained against centrifugal force by a split collar 35 keyed to the axle and clamped by a nut 37. A flange 32<x>, Fig. 3, on the axle is cut-away at 32‹ to clear studs 40 in the boss 28<c>, the cut-away parts having sufficient clearance from the studs to allow the axle a total rotation of 16‹. In order to damp the oscillation on the drag pin 23 in normal flight the drag pivot and the inclined pivot are each provided with a frictiondamper (not shown), which may be adjustable, that on the inclined pivot presenting the greater resistance. Alternatively this oscillation may be damped aerodynamically by inclining the drag pivot axis relatively to the direction of rotation, the dampers being omitted. In a modification the drag and inclined pivots are combined by arranging them concentrically. The inclined pivot also serves as a friction damper whenever the amplitude of oscillation of the blades about the drag pivot becomes excessive.
Patent GB-1405811-A (GB)
Title: Press with controlled cutting operation
IPC: B21D28/00
Filed: 1973-03-28
Abstract: 1405811 Punching L SCHULER GmbH 28 March 1973 [29 April 1972] 14881/73 Heading B3W To control recoil of the press frame and drive at the moment when a press tool breaks through material to be cut, a shear or punch press has one or more counterpressure cylinders 5 acting on the ram 6 which has/have a throttle device 9 and means for varying the opening of the throttle device during the cutting stroke. Adjustment may be dependent on the displacement or speed of the ram or the angular position of a crank driving the ram. The cylinders 5 are fed from reservoir 10 by a pump 13 operating in conjunction with a pressure compensation accumulator 14 located between two non-return valves 15. A second accumulator 16 is provided in the hydraulic circuit of an overload device actuated on displacement of pressure liquid from cushions 18.
Patent GB-820265-A (GB)
Title: Apparatus for the manufacture of porous or homogeneous polyurethane plastics
IPC: C08G18/08
Filed: 1957-05-10
Abstract: <PICT:0820265/III/1> An apparatus for use in the production of polyurethane plastics comprises a mixing chamber 4, means for introducing into the mixing chamber a continuous stream of an organic compound having at least two reactive hydrogen atoms, means located adjacent to this continuous stream for injection into the mixing chamber and into the continuous stream measured amounts of the polyisocyanate or cross-linking agent and/or accelerator, a mixing head 10, pumping means to convey the mixture produced in the mixing chamber to the mixing head, means for injection into the mixture contained in the mixing head of measured amounts of the cross-linking agent and/or accelerator or the polyisocyanate and means for discharging the reactive mixture from the mixing head. The apparatus is suitable for use in the process of Specification 820,266, [Group IV (a)].ALSO:The invention comprises an apparatus for the production of polyurethanes, particularly by the process of Specification 820,266, the examples being the same as in that Specification.ALSO:The invention comprises an apparatus for the production of polyurethane foams, particularly by the process of Specification 820,266, the examples being the same as in that Specification.
Patent GB-1069637-A (GB)
Title: Cross-linked vinyl/dicarboxylic anhydride copolymers
Inventor: DARLOW BRIAN BENJAMIN
IPC: C08F8/00
Filed: 1965-04-08
Abstract: A cross-linked alternating copolymer of an a ,b -unsaturated dicarboxylic anhydride and a vinyl monomer, which copolymer is water-soluble or -swellable per se or in salt form, is cross-linked by means of an epoxy compound in such amount that the number of epoxy groups to anhydride groups is not greater than 3 to 10.  The copolymer may be derived from maleic anhydride and either ethylene, isobutylene, styrene or methyl vinyl ether.  The epoxy compound may be ethylene, propylene or styrene oxide, glycidol, glycidyl methacrylate, glycidaldehyde, ally glycidyl ether, epichlorhydrin or an epoxy resin, i.e. a condensation product of a diphenol with epichlorhydrin.  The cross-linked copolymer may be formed either by treating the alternating copolymer with the epoxy compound, e.g. in benzene using boron trifluoride diethyl etherate, n-butylamine or tri-n-butylamine as catalyst, or by copolymerizing the two monomers in the presence of the epoxy compound, e.g. in the presence of benzoyl or lauroyl peroxide, cumene hydroperoxide, di-isopropyl peroxydicarbonate or azo-bisisobutyranitrile as catalyst and at 35-120 DEG  C. in benzene. The cross-linked copolymer may be treated with aq. potassium or sodium hydroxide to give the potassium or sodium salt which may be the half acid-half salt.
Patent GB-1007142-A (GB)
Title: Improvements in or relating to a prefabricated element for use in the construction of a building
IPC: B28B7/22
Filed: 1961-09-05
Abstract: 1,007,142. Dwelling houses. PATENT CONCERN N.V. Sept. 5, 1961 [Sept. 14, 1960], No. 15043/65. Divided out of 1,007,141. Heading E1A. In a prefabricated box-shaped building unit the ceiling 119 is of lighter material than the walls 118 and the floor 120. The latter are of hollow brick. The elements are finished with partition walls 122, doors &c. in a factory. The ceiling has reinforcement 125 through the lower part and engages in the sides of the walls so that the walls of units, one on the other, can engage directly. Specification 1,007,143 also is referred to.
Patent GB-552511-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: F27B14/02
Filed: 1941-11-25
Abstract: 552,511. Tilting furnaces. GROVES, W. W. (Moore, W. E.). Nov. 25, 1941, No. 15179. [Class 51 (ii)] A tilting furnace heated electrically is provided with a bracket or brackets 15, Fig. 3, pivotally engaging at 20 a support or supports 18 spaced from the furnace. The furnace is tilted by pivotally mounted hydraulic pistons 25 engaging with brackets 24 on the lower part of the furnace which in its normal position rests by means of feet 26 upon pedestals 30 pivoted at 29 to allow them to be moved into the position shown in dotted lines when it is desired to lower the furnace beyond its normal position so as to rest on supports 33. The furnace roof is raised and moved to one side by a piston rod 45, Fig. 4, rotatably secured to a piston 44 working in a hydraulic cylinder 43 secured to the wall of the furnace. The piston rod is provided with a roller 49 which, as the piston rod is raised, moves in a cam shaped slot 48 which allows the roof to be moved vertically at first and then both vertically and horizontally to clear the furnace. Fluid under pressure is supplied to the cylinders of the tilting and roof-lifting mehanism by a pump 53, Fig. 6, driven by an electric motor 54 and connected by a pipe 55 to a reservoir. When it is desired to tilt the furnace, fluid under pressure passes from the pump through a three-way cock 58 which is manipulated to direct fluid through a pipe 61 to a control valve 60 which is set to permit passage of fluid to a pipe 42 to the cylinders 22. When the furnace has been tilted, the valve 60 is placed in neutral position and fluid is returned from the valve to the tank 56 through the pipe 62. Should the furnace be overtilted, a chain 72 attached to the furnace operates a valve 71 and allows fluid to pass back through pipes 70, 68 to the reservoir. To lower the furnace to its normal position the valve 60 is operated to allow fluid to drain back from the cylinders through the pipe 42, valve 60 and pipe 68. When it is desired to raise the roof, the valve 58 is manipulated to allow fluid to pass to the pipe 64 and control valve 63 which is operated to allow fluid to pass through a pipe 67 to the cylinder 43. An overflow passage 52, Fig. 4, is provided in the cylinder 43 of the roof lifting piston to prevent excessive upward movement of the roof. Safety switches 80, 84 and 86 are arranged in the electric circuit of the motor 54 to limit the tilting of the furnace and to prevent operation of the roof and tilting of the furnace simultaneously.
Patent GB-1067025-A (GB)
Title: Streamlined aerodynamic device for distributing combustion and/or waste products emitted from a funnel, chimney or the like
IPC: F23J11/00
Filed: 1964-04-13
Abstract: 1,067,025. Chimney tops and terminals. C. MORTARING. April 13, 1964 [April 12, 1963], No. 15288/64. Heading F4J. A streamlined headstock (15) is fitted to the outlet of a funnel or chimney (12) to prevent smoke being blown down on to the upper works of ships or land installations due to turbulent eddies in the wake of the funnel caused by relative wind velocity. The headstock supported on circular supports (19) to reduce wind drag, is made up of two orthogonally mounted plates 16, 17 fitted with stiffeners 18 to form a chamber 20 in which a deflector plate 22 may be fitted to cause deposition of unburnt particles in the chamber 20 whilst the waste gases escape through the exit. The chamber 20 may be periodically washed out through outlets 24 by water spouts from pipes 23. In a modification (Figs. 1 and 2, not shown) the headstock comprises a flat plate (4) surrounding the funnel outlet, which plate has adjustable flaps (9) and (9<SP>1</SP>) which may be raised into the path of the wind.
Patent GB-1186023-A (GB)
Title: Strengthened Glass Articles
IPC: C03C21/00
Filed: 1967-04-04
Abstract: 1,186,023. Strengthening glass articles. ANCHOR HOCKING GLASS CORP. 4 April, 1967 [4 April, 1966; 17 Oct., 1966], No. 15452/67. Heading C1M. Glass articles having a composition including 7-25% wt. Na2O and 45-80% wt. SiO2 are strengthened by ion-exchange desorption of copper ions which are not induced to metallic copper and which therefore impart no significant colour to the heated article. Preferably the layer so produced should be deeper than any Griffith flaws and abrasion marks that may reasonably be expected in use. An aqeuous halogen is used and is preferably diffused into the glass above its annealing temperature and the layer thus produced is placed in compression when the article is cooled, but the introduction may be made at a lower temperature and subsequent heating and cooling performed. The treatment should be carried out in a non-reducing atmosphere.
Patent GB-185237-A (GB)
Title: Improvements in and relating to the manufacture of chocolate or cocoa products
IPC: A21C1/08
Filed: 1921-06-04
Abstract: 185,237. Torrance, J. R. June 4, 1921. Cocoa manufacture.-Cocoa passes from a mixing-apparatus to a receiving-vessel provided with agitators, and thence to a series of grinding and refining rolls. In the aparatus shown, the mixer consists of a pan 1 containing edge-runners 2. The receiver C is provided with steam or hot-water jacket and is mounted on trunnions 13 so as to be easily tilted for inspection and cleaning. The cocoa passes from the receiver C through an opening controlled by a slide 14<b> to the re-firing rolls. These are arranged in sets of three, each set being provided with a shaft 26 from which the rolls are driven by toothed gearing and about the axis of which they are movable so as to be adjusted for wear &c. The middle roll of each set has a reciprocating longitudinal motion to equalize wear.
Patent GB-129630-A (GB)
Title: An Improved Adhesive Composition, more especially applicable for use in Waterproofing Fabrics and Rendering the same Impermeable to Gases.
IPC: D06M15/07
Filed: 1919-06-20
Abstract: 129,630. Soc. Anon. des Etablissements Hutchinson. July 6, 1918, [Convention date]. Varnishes.-A waterproofing composition comprises a solution of cellulose acetate and caoutchouc in suitable common solvents, more especially in hydrocarbons containing chlorine. One example of such composition is prepared by dissolving 20 parts of caoutchouc and 60 parts of cellulose acetate in 60 parts of tetrachlorethane. Sulphur may be incorporated in the mixture to enable the coating to be vulcanized either by steam or hot air, or it may be vulcanized in the cold by means of chloride of sulphur. Other substances may be added, such as organic or inorganic loading or coloured materials, and a softening agent for the cellulose acetate.
Patent GB-957406-A (GB)
Title: Improvements in or relating to power transmission arrangements
IPC: F16H7/02
Filed: 1963-04-19
Abstract: 957,406. Belt gearing. M. BAERMANN. April 19, 1963 [April 26, 1962], No. 15565/63. Heading F2Q. In a power transmission system, an endless belt 1 connecting two pulleys comprises a permanent magnetic material forming magnetic poles of alternating polarity along the belt, while at least one of the pulleys has poles at the same pitch round its periphery so that magnetic forces prevent slipping of the belt on the pulley. On the side of the belt facing the pulleys is a layer of rubber or plastic, such as p.v.c., incorporating a pulverent permanent magnetic material, e.g. barium, strontium, or lead ferrite; or bismuth-manganese. The pulley may be a cylinder of a soft magnetic material or of a permanent magnetic material, with slots round the periphery filled with non-magnetic material to separate poles of alternate polarity. Alternatively, a ferromagnetic cylinder sheathed in a layer of flexible material incorporating a pulverent permanent magnetic material (Fig. 3, not shown), or a drum 6 of ferromagnetic material having radially magnetized bar magnets 7 round its periphery spaced apart by non-magnetic material 8 (Fig. 4), may be used as a pulley. The pulleys may alternatively be a V or other form.
Patent GB-248977-A (GB)
Title: Process for the liquefaction and rectification of air or other gaseous mixture into its components
IPC: F25J3/04
Filed: 1925-06-16
Abstract: 248,977. Cicali, G. June 16, 1925. Separating gases by liquefaction.- Air &e. is divided into two portions, one of which is slightly compressed and cooled without expansion by the cold nitrogen resulting from the subsequent recti fication; the other portions is compressed to a higher pressure, cooled by the whole of the re sulting nitrogen and hydrogen, and separated intc two portions, one of which is liquefied without expansion, throttled down, and delivered to pans in the rectifying column, while the other is ex. panded into a motor to the same pressure as the slightly compressed portion and introduced with this portion into the bottom of the rectifier. Air &c. is compressed to a few atmospheres in a water-cooled compressor C<1> and passes through a water-cooled coil s'; it is then divided into twc parts one of which flows through a cock R<1> to a two-pipe heat exchange coil S<1> where it is cooled by a, counter current of rectified nitrogen, finally being led into the base of the rectification column through the pipe A. The other portion is compressed further in a water-cooled compressor C<2> cooled in a coil and passed into the middle pipe of a triple'heat-exchange coil S<2> cooled by oxygen and nitrogen flowing through the inner and outer pipes. Issuing from this coil it is divided, one portion flowing into an expansion chamber e and thence to the pipe A, while the other portion is further cooled and liquefied in a coil S<3> traversed by nitrogen which afterwards flows through the coil S<2>, and is delivered at the inlet C into the column. The gases rise from the base of the column through plates D; the liquefied oxygen is lead through a valved pipe E to the top of the column, containing plates G, from which it falls to vessels H. H' and to the outside of a heatexchange apparatus in which it is vaporized, passing off through an outlet z to the coil S<2>. The nitrogen rising in the column is liquefied in the lulose esters, natural or synthetic resin, paraffin. of the column. Here it is vaporized, and carried down to a point l where it is divided between the coils S<1> and S<2>.
Patent GB-258342-A (GB)
Title: Improvements in methods of impregnating fibrous insulation of stranded conductors
IPC: H01B13/30
Filed: 1925-06-17
Abstract: 258,342. Standard Telephones & Cables, Ltd., (formerly Western Electric Co., Ltd.), Nash, G. H., and Riley, T. N. June 17, 1925. Cables, processes for making.-In a method of impregnating the insulation of stranded cables, air or moisture is withdrawn from ,the cable in a direction transverse to the direction of penetration of the impregnating compound. The cable mounted on a drum 4 may be immersed in a tank 1, Fig. 1, containing the impregnating material and a vacuum applied to the upper part of the tank. Alternatively, the exhaust pipe 6, Fig. 2, terminates in two caps 7 tightly fitting over the cable ends and pressure is supplied through the pipe 8. In a further modification the impregnating composition is forced through the pipe 6 and the pipe 8 connected to the exhaust.
Patent GB-544936-A (GB)
Title: Improvements in or relating to variable speed gears
IPC: F16H39/06
Filed: 1940-10-28
Abstract: 544,936. Hydraulic torque converters ; variable speed gears. HOBBS, H. F. Oct. 28, 1940, No. 15753. [Class 69 (ii)] [Also in Group XXIV] A hydraulic torque converter which can transmit power at variable speeds comprises a drum 16 in which are arranged one or two spindles 13 carrying pump wheels 14 having vanes in the form of rollers 15, the drum 16 being arranged in a housing 20 which is secured to the output shaft 21 by rivets 22, the input flywheel 10 being connected by an annular gear 11 to gears 12 on the spindles of the wheels 14. The drum 16 also carries one or two reaction wheels or motors 18 having roller vanes 19, and the spindles 17 of these wheels are fitted with gears 24 which engage a fixed gear wheel 25. The drum 16 is connected by rivets 29 to a sleeve 30 on the output shaft 21, and by means of a sliding collar 40 which displaces balls 33 arranged between a groove parallel to the axis of the gear 25 and inclined slots 36 in sleeve 30, angular adjustment can be effected between the drum 16 and the housing 20 and pump spindles 13, 17, so that variation can be effected in the capacity of the pump and motor wheels and so of the transmission ratio between the engine speed and speed of a car. The collar 40 can be operated by a throttle pedal control so as to reduce the eccentricity of the pump as the engine throttle is opened. The spindles 13, 17 are arranged to be concentric or eccentric to the chambers in which the vanes 19 work, and if one is concentric the eccentricity of the other is at its maximum. On actuation of the collar 40 the eccentricities are varied in the opposite sense so that if the eccentricity of the spindles 13 is increased that of the spindles 17 decreases. In a modification the ball vanes 15, 19 are replaced by sliding vanes of a piston-like form. In place of a fixed gear 25 which is connected to the re-action wheels a second input or driven shaft may be used, or two output shafts may be used, Oil is replenished by a pump 72 which delivers from a sump through a pipe 73 and channels 77, 78, 79. Specification 536,977 is referred to.