baber/WOPTO huggingface dataset:
Patent GB-234078-A (GB)
Title: Process for the concentration of diluted nitrous gases
IPC: C01B21/20
Filed: 1925-04-29
Abstract: Dilute nitrous gases are absorbed in a solution of an alkali phosphate which is subsequently heated in order to liberate the nitrogen oxides in a concentrated form and regenerate the alkali phosphate.  In an example, nitrous gases are absorbed in a tower down which a saturated solution of tri-sodium phosphate is irrigated. Further quantities of tri-sodium phosphate are dissolved in the absorbing liquor in order to check the rise in acidity as the nitrous gases are absorbed.  After neutralizing and evaporating, the concentrated liquor is led to an apparatus in which it is decomposed by means of hot nitrous gases from an arc-furnace.  The concentrated nitrogen oxides which are liberated are absorbed in water in the usual manner.  The solution charged with nitrous gases may also be decomposed by atomizing it in the presence of hot nitrous or other gases.  The concentrated liquor or the molten mixture of salts obtained on heating to dryness may be allowed to fall on to a rapidly rotating disc, or compressed air may be blown into the concentrated liquor or molten salt mixture.  Or, the salt mixture may be decomposed by hot gases in a rotating cylinder or in a tower provided with shelves and means for passing the salt from one shelf to the next below it.  By effecting the decomposition in a closed container and cooling the liberated gases, liquid nitrogen peroxide is obtained.  Disodium hydrogen phosphate and potassium phosphates are also mentioned as suitable alkali phosphate that may be used. Specification 16067/07 is referred to.
Patent GB-1235791-A (GB)
Title: Improvements in or relating to bearings
IPC: F16C33/58
Filed: 1969-03-03
Abstract: 1,235,791. Making bearings. SKF KUGELLAGERFABRIKEN G.m.b.H. 3 March, 1969 [2 March, 1968], No. 11291/69. Heading B3A. [Also in Division F2] A race ring of a bearing has, prior to the bearing being mounted in place, in the case of an inner race ring, a non-circular mating surface 1 and a non-circular race surface 2 and the surfaces 1, 2 are so dimensioned that the ring is distorted, within its elastic limit when mounted on a shaft so that the race surface becomes a circular surface 5. Alternatively with an outer race ring the ring is mounted in the bore (8) of a housing and the inner diameter of the ring is distorted to a circular surface (10), Fig. 2 (not shown). The inner race ring is initially formed with a bore 1 of tri-lobed non-re-entrant shape and pushed on to a mandrel having a diameter equal to that of a shaft 3. The surface 2 is ground circular and the ring removed from the mandrel, the size of the ring being such that it is elastically deformed when placed on the mandrel. When making an outer race ring, a non-circular ring is clamped in a bore or chuck, the diameters of which correspond to the bore of the intended housing of the ring. The inner race surface is then ground circular and again there is only elastic deformation of the ring. In alternative methods the non-circular surfaces are oval.
Patent GB-576094-A (GB)
Title: Improvements in or relating to heat-exchangers
IPC: F28D21/00
Filed: 1942-08-12
Abstract: 576,094. Heating air. BRISTOL AEROPLANE CO., Ltd., and CAMERON, L. M. Aug. 12, 1942, No. 11310. [Class 64 (iii)] [Also in Group XXVI] In a heat-exchanger for heating air by hot gases, units 18, 19 each having a number of parallel paths with separate inlet and outlet ducts 11, 12 for the air are arranged side by side at an angle to one another in the path of the hot gases. The air flows through the parallel paths of each unit alternatively in opposite directions. The exchanger is shown applied to a gas turbine plant for driving two contra-rotational air screws. Air from an axial compressor 6 passes to a centrifugal compressor 7 and thence to an annular chamber 16, from which it passes through the circularly arranged inlet ducts 11 of the exchanger. The intercalated outlet ducts 12 form the combustion chambers of the turbine. The exhaust gases pass through the exchanger to a nozzle 10.
Patent GB-571555-A (GB)
Title: Improvements in breathing apparatus for use under water and in noxious gases
IPC: A62B7/04
Filed: 1943-07-12
Abstract: 571,555. Goggles. LAMBERTSEN, C. J. July 12, 1943, No. 11314. [Class 97 (i)] [Also in Group VI] To prevent fogging in cold water, the goggles included in the mask of a respiratory appliance are formed with two layers of glass 99 and 100 with a substantially air - tight space between them.
Patent GB-711349-A (GB)
Title: Improvements in and relating to animal foodstuffs
IPC: A23K1/175
Filed: 1951-05-16
Abstract: An animal food or food supplement, for cattle, pigs and poultry especially, contains a non-halogen sodium salt, e.g. sodium bicarbonate, disodium hydrogen phosphate or sodium lactate, tri- or di-calcium phosphate sufficiently fine to be assimilable, e.g. degreased bone flour, iodine-containing seaweed, and a sugar, e.g. cane, beet or cheese whey molasses which has been demineralized by removing, or otherwise rendering physiologically inactive, the chlorides therein.  The seaweed provides copper, manganese, magnesium, boron, cobalt and molybdenum in addition to iodine.  The endocrine gland stimulant apiol, e.g. as parsley, and the endocrine gland stimulant fragarine, e.g. as raspberry, blackberry or strawberry leaves, may be incorporated.  The mixtures may be prepared in the form of pellets, cubes, crumbs or meal, and may be mixed with forage meals, e.g. grass or lucerne meal with or without wheat offals.
Patent GB-1514203-A (GB)
Title: Apparatus for filtering engine exhaust gases
IPC: F01N3/021
Filed: 1975-05-08
Abstract: 1514203 Filtering engine exhaust gases; centrifugal separators INCOM INTERNATIONAL INC 8 May 1975 [9 May 1974] 11514/75 Headings BIT and B2P [Also in Division F1] An apparatus for filtering engine exhaust gas comprises a container 70 having a filter section 84 containing a filter element 98 (e.g. pleated fibreglass) and a trap section 88 detachably connected to the section 84 and in communication with the section 84 via aperture 90 in the wall separating the sections 84, 88, the filter section 84 at its inlet end having an annular array of vanes 82 (or a tangential inlet, Fig. 1, not shown) whereby in use gas is passed into the filter section 84 and is swirled in the annular region surrounding the filter element 98, particles separated by centrifugal force are collected in trap section 88 and the gas is passed through filter element 98 to outlet 74. As shown the container 70 may comprise a muffler section 76 comprising silencing tubes 78 upstream of the filter element.
Patent GB-494174-A (GB)
Title: Improvements in or relating to speed governing devices of vehicles
IPC: G01P1/08
Filed: 1937-04-22
Abstract: 494,174. Fluid-pressure servomotorcontrol systems. BURKE, P. W. April 22, 1937, Nos. 11533 and 18809. [Class 135] [Also in Groups XXVI and XXXV] An arrangement for preventing the speed of a vehicle exceeding a predetermined value comprises a stop for an extension of the accelerator which stop is moved by a servomotor when the speed is excessive to offer resistance to movement of the accelerator. The Figure shows an arrangement wherein the centrifugal governor is connected to a control valve 74 which controls the flow of fluid to a cylinder 79 having a spring-loaded piston 80 fitted with a leakage passage 81. The rod 80A is connected to the stop. In another arrangement the control valve controls the supply and exhaust to both sides of a piston. The speed of operation is controlled by adjusting the position of the centrifugal governor.
Patent GB-1057373-A (GB)
Title: Method for purging water from a moving paper web during paper manufacture
IPC: D21F1/48
Filed: 1964-03-18
Abstract: 1,057,373. Drying webs. HUYCK CORPORATION. March 18, 1964 [March 18, 1963], No. 11536/64. Heading F4G. [Also in Division D2] A method of reducing the water content of a web of paper which has insufficient water to fill all the voids between the fibres, comprises applying gas at a sufficient superatmospheric pressure to one surface of the web by means of a suitable orifice or orifices, the web being supported on its opposite surface by means of a porous endless belt, so that the web is reduced to such a thickness that the water in the web fills substantially all the voids, with the gas passing through the web and belt and expelling the water. A web of paper 10 supported by a porous belt 12 passes around a portion of the circumference of a perforated roll 28 and is compressed against the roll 28 by the belt 12 which is tensioned by tensioning roller 20. Air is supplied to a chamber 36 inside roll 28 and passes through the web into a collection and drain vessel 46. If desired, a second belt may be used, the two belts then forming a sandwich with the web of paper. In an alternative arrangement (Fig. 2, not shown), an extended chamber through which the web and supporting belt pass is defined by fixed side, upper and end walls and by two pairs of opposed pressure rolls located in the end walls the nip of these rolls defining the entry and exit to the chamber for the web. Pressurized air is supplied to the upper compartment of the chamber so that air flows through the web and belt into the lower compartment of the chamber thereby carrying water from the web. Narrow travelling belts disposed above and below the web provide a seal between the side walls of the chamber and the edge portions of the supporting belt (Fig. 5, not shown). In a modification (Fig. 3, not shown), of the arrangement just described, the inlet and outlet rolls are perforated and are provided with means to pass pressurized air through the web at the nip of each pair of rolls from a pressure compartment in the upper roll to a suction compartment in the lower roll. The porous supporting belt may be a felt, or a woven screen of synthetic materials or wire, may be of the duplex type or may have a second belt running inside it, and may be impregnated or coated with a suitable resin or otherwise treated to provide dimensional stability. The air-press chambers of the invention may be disposed at a point at which the web is still supported on a Fourdrinier wire after its passage over the usual table rolls and suction boxes and several of such air-presses may be arranged in series (Fig. 4, not shown).
Patent GB-358963-A (GB)
Title: Device for the transmission of stresses by fluids compressible or otherwise
IPC: F15B15/10
Filed: 1930-04-11
Abstract: 358,963. Fluid - pressure brakes. LAVAUD, D. S. DE, 179, Rue de la Pompe, Paris. April 11, 1930, No. 11579. Convention date, April 12, 1929. Void [Published under Sect. 91 of the Acts]. Addition to 348,013. [Class 103 (i).] In a hydraulic braking device for a vehicle the operating rod is pivotally connected to the middle of a link the extremities of which are yoked to the front and rear wheel brake control pistons in order to equalise the braking effect. The operating rod passes through a sleeve mounted between the two cylinders in the base common to these cylinders. These devices each comprise a rubber diaphragm 92 deformable under the action of a piston 97 and a nest of tubes 99, 100, 101 which are successively moved by a shoulder 98 on the piston. A transparent reservoir 109, maintaining the system filled with liquid, is cut off when the diaphragm 92 first moves by a valve 103 operated by a boss 108 in a resilient blade 105 the end 107 of which engages the diaphragm 92. The reservoir 109 is held by a tube 111 screwed at its lower end to the seat 113 of the valve 103 and screw-threaded at its upper end to receive a nut 115 and a cap 117 which can be removed in order to introduce liquid into the reservoir through the tube 111. The Specification as open to inspection under Sect. 91 (3) (a) was not confined to brakes.
Patent GB-553305-A (GB)
Title: Improvements in and relating to the production of unsaturated ketones and their related keto alcohols
IPC: C07C49/17
Filed: 1941-09-12
Abstract: 553,305. Keto-butanol derivatives. COLMORE ADHESIVES, Ltd., and WHITE, T. Sept. 12, 1941, No. 11714. [Class 2 (iii)] 3-Ketobutanol is prepared by reacting 40 parts by weight of paraformaldehyde with 300 parts by weight of acetone at a pH of between 7.5 and 9.0. 2-Methyl-3-ketobutanol is similarly obtained using 30 parts of paraformaldehyde to 200 parts by weight of methylethylketone. The ketoalcohols, which are preferably purified by distillation in the presence of a high boiling ester, e.g. dibutylphthalate, yield the corresponding unsaturated ketones by dehydration with, e.g. sulphuric, phosphoric or oxalic acid, alkalibisulphates, calcium chloride, quicklime, halogens or anhydrous copper sulphate. In examples : (1) acetone and paraformaldehyde are refluxed with methylalcoholic potash and the product distilled with dibutylphthalate after neutralization ; (2) the product obtained in example (1) is distilled with concentrated phosphoric acid and the crude methylvinylketone freed from acetone by fractional distillation after removing water by heating with acetic anhydride ; (3) methylethylketone is similarly treated with paraformaldehyde and methyl isopropenylketone obtained by dehydrating the product.
Patent GB-178723-A (GB)
Title: Improvements in and relating to artificial limbs
IPC: A61F2/58
Filed: 1921-04-23
Abstract: 178,723. Kenney, N. J. H. April 23, 1921. Limbs, artificial.-The upper and lower portions A, B are pivoted at c to the opposite ends of extensions b of a connecting-frame a and are guided by pins k carried by the frame and engaging slots j in segmental plates d adjustably secured to the limb members, adjustment being effected by pin and slot connections o, n. Each limb member carries two segmental plates, the connecting-member a being arranged between them, Fig. 4. To the plates d are pivoted the outer ends of links e, Fig. 4, the inner ends of which are pivoted, Fig. 3, to a rocking lever f mounted on a spindle g carried by the connecting-frame a. A pull on the lower limb member derived from the usual cord p, Fig. 1, results in the bending of the joint and, moreover, causes one of the links e to rotate the rocking lever to cause the other link e to push the segmental plate d attached to the other limb member. An adjustable friction clamp for the joint is provided, comprising sleeves h, Fig. 4, mounted on the spindle g and operated by a wing nut i. A guard-plate s at the outer surface of the joint is also provided.
Patent GB-455300-A (GB)
Title: Improvements in and relating to apparatus for tempering glass
IPC: C03B35/20
Filed: 1935-04-17
Abstract: 455,300. Tempering glass. CLEMO, F. A., 9, Kingsway, London.-(Gordon, F. C. ; 52, Boulevard de la Villette, Paris) April 17, 1935, No. 11842. [Class 56] [See also Group XXX] Relates to the method of supporting glass plates, during tempering, by means of a device having a pair of points which grip the glass. According to the invention, means are provided for releasing the pressure of the points on the glass as soon as they have entered the softened glass a predetermined distance. Fig. 1 shows tongs of the kind in which a glass sheet 5 is gripped between points 4 when the device is suspended by a ring 7. According to the invention, a screw 8 is passed through the lower limb of one member of the tongs, and this screw is so adjusted that it make contact with other limb when the points 4 have entered a short distance into the softened glass, thus preventing the points from exerting further pressure on the glass. In a modification, the screw is dispensed with and the upper parts 20 of the limbs 1, 2 are made shorter than usual. In this case, holes are drilled in the glass, before tempering, for the reception of the points 4, but the shorter length of the parts 20 prevents the pressure between the points from being so great as to enlarge appreciably the holes in the glass. Another construction, shown in Fig. 3, consists of a U-shaped clamp carrying the points 4, one of which is formed on a screw 13. In use, the limbs 11, 12 are sprung apart when the clamp is placed on the glass sheet and the screw 13 is advanced, the stiffness of the clamp being sufficient to cause the pressure between the points to hold the glass. The points enter the glass as it softens until the limbs 11, 12 are restored to their normal position, and the pressure is then released. The clamp may be made with thicker limbs having a greater degree of stiffness, a tool being provided to spread the limbs when placing them on the glass sheet. In this case, the points enter holes drilled in the glass.
Patent GB-120939-A (GB)
Title: Improvements in and Appliances for the Manufacture of Propellers particularly applicable for use on Aircraft.
IPC: B27M3/00
Filed: 1917-08-18
Abstract: 120,939. Blackburn Aeroplane & Motor Co., and Wilson, S. Aug. 18, 1917. Cramps.-In assembling the glued laminae of aircraft propellers, they are registered in the required form and are clamped together, while the glue is setting, between upper and lower steplike structures 9, 6 supported respectively by a pressure arm or head 2 and by a bench 5. The arm 2 is pivoted at 14 to an adjustable post 11 supported by one end of a base 1., and a screwthreaded rod 3 is pivoted to the opposite end of the base and is provided with a nut 4 by which pressure is applied to the arm 2. A number of these clamps are applied at intervals along the laminae.
Patent GB-615921-A (GB)
Title: Improvements relating to velocity modulation valves
IPC: H01J25/18
Filed: 1946-04-17
Abstract: 615,921. Velocity-modulated tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. April 17, 1946, No. 11910. Convention date, Feb. 6, 1941. [Class 39 (i)] In a velocity modulation valve employing coaxial lines in which stationary waves occur, a plurality of electrode systems are disposed along the axis of the lines, each system being at a voltage antinode. In Fig. 2, the inner conductor D of the input line C, D carries two cathodes 1 and two grids 2 disposed half a wavelength apart; the grids may be at different D.C. potentials from the cathodes, but at the same high-frequency potentials. The electrons are velocity modulated by the field between the grid and the line C, pass through the drift space between B and C and give up their energy to the output line A, B. Fig. 3 illustrates a modification in which a reflecting surface R is used instead of a drift space to convert velocity modulation into density modulation; whilst this Figure shows only one electrode system, according to the invention several systems are employed, each disposed at a voltage antinode.
Patent GB-540924-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D23/12
Filed: 1940-07-23
Abstract: 540,924. Clutch - operating gear. BORGWARNER CORPORATION. July 23, 1940. No. 12073. Convention date, Aug. 14, 1939. [Class 80 (ii)] A clutch having means, e.g. a spring 7 serving normally to engage the clutch, means, e.g. springs 30, for holding the clutch dis-engaged at low speeds, and centrifugal means, e.g. weights 29 for producing clutch engagement upon increase in speed is arranged so that the speed for clutch engagement is greater than for clutch dis-engagement. As shown, the spring 7 acts through an arm 11 on a rock shaft 12 and members 13 . . . 16 tending to hold a clutch 4 engaged. Springs 30 acting through weights 29 and members 33, 23, lost motion connection 24 and arm 22 on the rock shaft 12 overcome the effect of the spring 7 at low engine speeds and hold the clutch 4 dis-engaged. The weights 29 and springs 30 are mounted on a casing 28 driven in accordance with the engine speed. At a pre-determined speed of the engine the weights 29 move under centrifugal force and the clutch 4 is engaged. In the form shown the moment arm A of the springs in the clutch engaged position is smaller than that in the dis-engaged position thus giving different speeds for clutch engagement and disengagement. In a modification the part of the weights 29 adjacent their pivots is engaged by spring frictional members tending to oppose movement of the weights. In another modification a projection on each weight has to ride over a spring catch during both its engaging and dis-engaging movements. The clutch may be manually dis-engaged by depression of a lever 20 which acts through a link 19, an arm 17 pivoted on the rock-shaft 12 and an adjustable stop 18 on an arm 11a fixed to the rockshaft 12. The clutch may be engaged when the engine is at rest or idling by actuation of a lever 35 connected by links 36, 37, to a collar 38 on the member 23 Specification 523,954 is referred to.
Patent GB-598074-A (GB)
Title: Improvements in or relating to thermostatic devices for controlling the gas supply to ovens and the like
IPC: G05D23/02
Filed: 1945-05-14
Abstract: 598,074. Thermally-actuated valves. BRITISH THERMOSTAT CO., Ltd., and SHERLOCK, J. E. May 14, 1945, No. 12078. [Class 135] A thermostatic device for gas ovens wherein the movements of hand-actuating means are transmitted to a gas supply regulating valve and to a cock for opening or closing the gas supply by the thermally responsive rod and tube 23, 24, Fig. 1. The latter are threaded together at their outer ends 30 where the tube carries a knob 28 for operating the on-off supply cock 12, and the rod carries a knob 27 whereby the rod may be moved axially through the thread 30 to adjust the spring-loaded disc valve 9. In a modification, the rod and tube are operated by a single knob 42, Fig. 4. After the first 90 degrees of turning, the cock opens and remains open through a peripheral groove 37 during further turning in which the threaded end of the rod moves the non-rotatable sleeve 38 axially to adjust the disc valve.
Patent GB-284121-A (GB)
Title: Improvements relating to the bearings for the spindles of spinning and analogous machines
IPC: D01H7/20
Filed: 1927-05-05
Abstract: 284,121. Smith, W. Prince-, and Waterhouse, D. May 5, 1927. Channels and reservoirs in vertical shaft bearings.- A bearing for the spindle of a spinning or like machine has a stationary bush D fitted with a lubricant container G. The bush D has, on its inner surface, an annular lubricant groove D<2>, on its outer surface one or more lubricant return grooves D<3> connecting the groove D<2> with the reservoir G, and in its lower end apertures D<1> within the reservoir. The spindle A has a rotary sleeve C and in operation lubricant is sucked through the apertures D<1> up the spindle and returns to the reservoir via the grooves D<2>, D<3>. The sleeve C or bush D may have a helical groove to assist circulation and the reservoir G may have an inner wall G<2>.
Patent GB-167278-A (GB)
Title: Improvements in gravity systems for railways
IPC: B61B5/02
Filed: 1920-05-04
Abstract: 167,278. Esmond, F. J. May 4, 1920. Cage and platform lifts.-In a gravity railway system, whether elevated or underground, or both, lifts are provided at each section or station so as to raise a train or car from the low level end of one section to the high level end of the succeeding section. The lifts a, b, c may have tilting platforms or rails to give an initial impetus to the train, while the lift b, between sections A, B which meet at the same level, may merely start the train without lifting it. The lifts may be counterweighted and may be tilted automatically, as by engaging a front stop between the rails, while a rear stop may limit the tilt.