baber/WOPTO huggingface dataset:
Patent GB-842745-A (GB)
Title: Production of potassium manganates
IPC: F28F1/28
Filed: 1957-09-20
Abstract: Potassium manganate K3MnO4 is prepared by reacting a manganese oxide having a valency less than 5 with an aqueous potassium hydroxide melt at 170-350 DEG C. in the presence as oxidising agent of a free oxygen-containing gas and/or of a potassium manganate (including permanganate) with a valency greater than 5, the total amount of oxide added not in excess of that stoichiometrically equivalent to the potassium hydroxide and added continuously or intermittently throughout the reaction at a rate which is or in discrete amounts which are insufficient to cause the mixture to become too viscous for satisfactory operation.  The product may be further oxidised simultaneously or subsequently in the same reactor or may be removed and oxidised in a separate reactor to K2MnO4, by means of free oxygen-containing gases.  After the initial reaction at 170-310 DEG C., any further oxidation preferably takes place at 140-310 DEG C. For both reactions the aqueous melt is preferably a 65-90% potassium hydroxide melt which may be provided by the addition of a more dilute solution which evaporates under reaction conditions: a 10- or 20-fold excess of potassium hydroxide over that required for the reaction is preferably employed in the formation of K3MnO4.  When the reactions are carried out in separate reactors it is preferred (a) when oxygen-containing gases are employed, to filter the product slurry from the second reactor and return the filtrate to the first reactor; filter cake washes comprising aqueous KOH are preferably returned to the second reactor and heat need only be supplied to the first reactor (b) where a manganate is employed in the first stage, to recycle part of the product slurry from the second reactor before filtering to the first reactor, to supply said manganate, and recycle the filtrate from the remainder of the slurry to the second reactor and to supply heat only to the second reactor, it is also preferred in the latter case to maintain a manganate: manganese dioxide ratio of at least 1.4:1.  Initial materials to be used are pure or impure manganese oxides, hydrated or otherwise, such as manganese dioxide and calcined rhodochrosite (Mn3O4) and oxides such as those produced in permanganate reactions e.g. p  5MnO2.K2O.3-5H2O, which are combined with potassium oxide.  As the free oxygen-containing gas, air, oxygen, air enriched with oxygen or a mixture of oxygen and an inert gas may be used, preferably in an amount at least four times that theoretically required.  Sub- or super-atmospheric pressure may be used if desired.  The gas may be passed through the melt or the melt may be very vigorously agitated while the gas is passed thereover so as to entrap bubbles of the gas.  Continuous, semi-continuous or batch operation may be employed.
Patent GB-408349-A (GB)
Title: Improvements in or relating to domestic cupboards
IPC: A47B77/10
Filed: 1932-10-24
Abstract: 408,349. Cupboards combined with other articles. COLLIS, H. H., Carmel, Eastcote Road, Ruislip, Middlesex. Oct. 24, 1932, No. 29739. [Class 52 (i).] A combination article of furniture comprises a cupboard, a table and steps, the table being constituted by the top of the cupboard and the steps being collapsable into a wall of the cupboard. As shown, the back 5 of the cupboard is hinged along its bottom edge and when lowered brings into operative position steps 18, 19 connected together and to the back 5 by parallel links 20, 21 the back of the upper step 18 also being hinged on the carcass of the cupboard. When the back 5 is closed the steps collapse into a compartment of the cupboard enclosed by a false back 7. A door 8 constituting the upper half of the front is hinged to flap down and serve as a leaf supported by two lower doors 9, 10, while the top 4 is provided with extension flaps 14, 15 hinged at 16 and supported when in use by pull-out battens 17.
Patent GB-1146720-A (GB)
Title: Bottom roller bearing for drawing frames of spinning machines
IPC: D01H5/56
Filed: 1966-07-01
Abstract: 1,146,720. Bearings. W. SCHAEFFLER, and G. SCHAEFFLER, [trading as INDUSTRIEWERK SCHAEFFLER OHG.]. 1 July, 1966 [3 July, 1965], No. 29740/66. Heading F2A. A bottom roller bearing for drawing-frames on spinning machines, comprises an outer race 1, Fig. 2, which is received in a recess 17, Fig. 1, of a bearing-bracket 12; rollers 3, which are retained in a cage 2 and an inner race 6. The outer race 1 is held in the recess 17 by means of a cap 8, having lips 10 and 11, Fig. 3, thereon which extend parallel to the annular faces of the outer race to embrace the bearing-bracket 12 and prevent axial displacement of the bearing; the cap also having side-walls 15 and 16 which are received by the recess 17 of the bearing- bracket 12 so as to prevent rotation of the bearing. The cap 8 is provided with end faces 13 and 14 which extend radially inwards to within the outer diameter of the inner rotating assembly, which includes the cage 2, said outer diameter in this embodiment being the diameter of sheet metal rings 7 which serve for sealing purposes and are mounted on the inner race 6; and the cap is secured to the outer race 1 by means of a lubrication nipple 9. Thus the bearing assembly is securely held together during the transit and the fitting thereof.
Patent GB-778235-A (GB)
Title: Improvements in or relating to methods of agglomerating textile fibres by the use ofadhesives
IPC: C03C25/323
Filed: 1954-10-15
Abstract: 778,235. Method of agglomerating textile fibres by use of adhesives. VINZELLES, M. P. DE. Oct. 15, 1954 [Oct. 17, 1953], No. 29746/54. Class 140. A method of agglomerating textile fibres comprises applying to the fibres a fine spray, e.g. a mist, of polyester resin, dissolved in a solvent and containing from 5 to 20 per cent by weight (based on the resin) of polymerization catalyst and up to 40 per cent by volume (based on the resin) of accelerator for the catalyst. The fibres may be glass fibres. The polyester resin may be a liquid resin obtained by the reaction of a di-acid with a di-alcohol. Specified solvents are trichloroethylene and acetone. A suitable polymerization catalyst is benzoyl peroxide and a suitable accelerator for the catalyst is a solution of dimethyl aniline in monomeric styrene. A suitable commercially available polyester resin consists .of a solution of glycol maleate polyester in styrene. A fine mist of a very dilute resin solution may be projected by a spray gun on to a layer of orientated or non- orientated fibres spread out either in or on a mould or spread out with the object of obtaining a mat, a woven or non-woven fabric, or a pre-form. Or the resin may be sprayed on to the fibres during their fall on'to a mould, table or conveyer belt.
Patent GB-649377-A (GB)
Title: Improvements in or relating to safe load indicators for cranes
IPC: B66C15/00
Filed: 1948-11-16
Abstract: 649,377. Safe load indicators for cranes. AITKEN, R. L. Nov. 16, 1948, No. 29832. [Class 78 (iv)] In a safe load indicator for a crane of the type in which the load to be measured is applied as compression to a resilient strut having an initial curvature and the rapid increase in deflection of the centre of the strut resulting from application of the safe load serves to operate a warning device, an additional load varying in accordance with the inclination of the jib and independent of the main load is also applied to the strut. In the construction of Fig. 1 the derricking cable 10 of a crane is anchored to the frame 16 of an indicating unit rotatably mounted on a shaft 12 carried by the frame 13 of the crane, passes around a pulley on the jib (not shown), around a pulley 14, around a further pulley on the jib and to a haulage drum (not shown). The pulley 14 is mounted in a bracket 15 pivoted at 9 to a member 8 which may rotate on the shaft 12. The indicating unit comprises a frame 16 to which one end of a compression member 17 is anchored at 18. The other end of the member 17 is secured to a member 19 carrying a pushrod 20 engaged by a laterally extending arm 26 on the bracket 15. Thus a compressive load determined by the tension in the cable 10 is applied to the strut 17, the central deflection of which may operate a warning or indicating device. A further load varying with the inclination of the jib is applied to the bracket 15 and thus to the strut 17 by a cam 21 fixed to the shaft 12 and on which bears a roller 27 on a plunger 24 urged by a spring 25 in a housing 22 on the bracket 15 against the cam 21. A similar construction is also shown in which the cable 10 is anchored to a fixed part of the crane instead of to the frame of the indicating device. In the construction of Fig. 4, the additional load varying with the inclination of the jib is applied through a sliding rod 35 at the centre of the compression strut (not shown) to oppose its flexure. The rod 35 also serves to transmit the central deflection of the strut to a lever 43, 53 pivoted at 44 in a fixed casing 38 and operating the warning device. The additional load is derived from a compression spring 34 bearing at one end on a lever 40 pivoted at 41 and is transmitted through a roller 42 engaging the levers 40, 43. To vary the effective value of the additional load the roller 42 is moved by a link 46 pivoted to a bell-crank 49 biassed by a spring 52 and carrying a roller 50 bearing on a cam 51 pivoted at 58 to the casing 38. The casing 38 and the indicating strut are carried by the jib and the cam 58 is connected by a linkage 55, 56 to a fixed part of the crane so that the cam 58 moves in accordance with the inclination of the jib to vary the force transmitted by the roller 42. In a further construction a force applied centrally to the strut as in Fig. 4 is derived from a spring, the point of anchorage of which is moved in accordance with the inclination of the jib.
Patent GB-776943-A (GB)
Title: Fishing hook disgorger
IPC: A01K97/18
Filed: 1954-10-16
Abstract: 776,943. Fishing. STRINGER, F. V. Sept. 21, 1955 [Oct. 16, 1954], No. 29832/54. Class 48 A fish-hook disgorger comprises a rod 1 of metal, preferablyaluminium formed at its two. ends with hook heads, 2, 3, one of which, viz., 2, has a transverse slot 4 and a longitudinal slot 6 on the outer end part 2B and a longitudinal slot 5 at the opposite side of the inner end part 2A, these slots 5, 6 being disposed substantially on a level with the base of the slot 4 and the head 3 has a longitudinal slot 7 on the same side of the rod as the slot 6, the line being threaded through the slot 6, along the transverse slot 4, through the slot 5, along the rod and through the slot 3 so that the disgorger can be pushed along the line to the hook, but can only be disengaged from the line by turning it at right angles to the line to disengage this latter from the slot 6 or the slot 7..
Patent GB-513352-A (GB)
Title: Improvements in or relating to telephone transmitters
IPC: H04R21/02
Filed: 1938-03-23
Abstract: 513,352. Transmitters. STANDARD TELEPHONES & CABLES, Ltd., POCOCK, L. C., and LEMAN, H. S. March 23, 1938, No. 29835. Divided out of 494,293. [Class 40 (iv)] A telephone transmitter of the carbongranule type comprises a first diaphragm, an air-chamber enclosed between said diaphragm and the transmitter casing, a second diaphragm mounted in front of the first diaphragm and a second air-chamber enclosed between the two diaphragms, the dimensions of the second chamber being so chosen that the stiffness of the air enclosed in the second chamber produces a resonance at a frequency of approximately 3,000 cycles per second. As shown, the diaphragm 2 carrying the electrode 3 is clamped at its periphery to an outer diaphragm 21 shaped to form a conical recess near a sealing ring 15 for varnish which seals the joint against moisture. A metal holder 26, insulated from the casing 1 by a ring 28, has a plug 27 which closes a filling hole 25 for the granules and has a socket 33 arranged to fit over a metal terminal in a hand set. The second diaphragm 21, the enclosed space between the diaphragms, the space between the inner diaphragm and the casing, the space between the outer diaphragm and the cover, and holes in the cover and casing are so dimensioned that an anti-resonance is set up at a frequency approximately equal to the natural resonance frequency of the inner diaphragm. The holes 13 are preferably of diameter 0.152 ins. and have a depth of 0.040 ins. The diaphragm 2 has a hole 32, preferably about 0.032 ins. in diameter, to reduce the amplitude of its movement at low frequencies. The holes in the cover plate 12 and the volume in front of the diaphragm 21 are such as to produce a resonance at a frequency of about 5,000 cycles per second. Specifications 435,130 and 494,293 are referred to.
Patent GB-303956-A (GB)
Title: Improvements relating to the concentration of fruit juices and other liquids containing aromatic constituents
IPC: B01D1/12
Filed: 1927-11-08
Abstract: 303,956. Serailian, M. K. Nov. 8, 1927. Bulk evaporators; evaporating plant and processes.-Liquids containing aromatic ingredients e.g. fruit juices are concentrated by first extracting the aromatic ingredients and then concentrating the liquid in a separate evaporator, the liquid flowing through the evaporators in a tortuous, path substantially transverse to its direction of flow through the plant. The latter comprises an evaporator A, Fig. 4 for extracting the aroma, an aroma condenser F, an evaporator I for concentrating the liquid pumped from the evaporator A through a reservoir D and a storage tank L. The evaporators A, I are shown in detail in Figs. 1, 2, 3 and comprise each upper and lower shells 1, 2 divided into sections by radial partitions 4 - - 10, the walls 4, 6, 8 extending from the top of the shell to the bottom of the vessel while the walls 5, 7, 9 extend to the top of the shell 2 but do not reach to the bottom. The wall 10 extends the whole length of the evaporator which is heated by a tubular boiler 16 having the same number of tubes in each section. Baffle plates 21, 22 are provided to catch particles contained in the rising vapours.
Patent GB-898992-A (GB)
Title: Fluid controlled apparatus regulating the pressure in a confined space
IPC: B64D10/00
Filed: 1960-08-30
Abstract: 898,992. Respiratory apparatus. BENDIX CORPORATION. Aug. 30, 1960 [Sept. 4, 1959], No. 29934/60. Class 81 (2). [Also in Groups XX and XXIX] Apparatus controlling the pressure in a confined space, such as a breathing mask, comprises a passage 13 having an inlet 11 connected to the mask and an outlet 12 controlled by a valve member 67, which is connected to a pressure responsive member such as a piston 66 subjected, on one side, to the loading of a spring 74 and/or a pressure and, on the other side, to the pressure of an external oxygen supply supplied through a passage 52 and controlled by a pilot valve 44. The pilot valve 44 is controlled by a diaphragm 14 in accordance with the pressure difference in chambers 34, 38. The chamber 44 is at the static pressure in passage 13 as measured by a piezometer ring 30 and supplied through passage 32, while chamber 38 is at a regulated pressure which is ambient pressure up to an altitude of 35,000 feet and above this altitude is maintained at a constant value, namely 3.4 p.s.i.a. which is the ambient pressure at 35,000 feet. The control of the regulated pressure is provided by a valve member 108, secured to an evacuated bellows 98, which controls a port 100 communicating with the atmosphere. A chamber 106 housing the bellows also receives the external gas supply in passage 52 through passage 102 and the bellows is so constructed to close the valve when the pressure falls to 3.4 p.s.i.a. In operation the mask is connected to the passage 13 in place of an aviator's suit 14 shown, where air is supplied from a supply 16 and oxygen is supplied to passageway 52 from a supply 22, the valve 67 controls escape of air from the mask in accordance with variation of pressure in passage 13 related to the regulated pressure in chamber 38. During exhalation, when the pressure in passage 13 is greater than the combined effect of the regulated pressure and spring 51, the pilot valve 44 and valve 86 are closed, as shown, and the oxygen acts on the piston 66 to open the valve 67. During inhalation, when the pressure in chamber 13 drops below the combined pressures and spring effect, pilot valve 44 first opens to reduce the pressure of oxygen acting on the piston 66, whereby the valve 67 moves towards a closed position and valve 86 opens under the control of diaphragm 82.
Patent GB-977068-A (GB)
Title: Improvements in and relating to filters for tobacco smoke
Inventor: SMITH BRIAN
IPC: A24D3/04
Filed: 1962-08-03
Abstract: 977,068. Cigarette filters. CIGARETTE COMPONENTS Ltd. July 26, 1963 [Aug. 3, 1962], No. 30012/62. Heading A2C. A tobacco smoke filter has a core formed of one or more pieces of a net-like material of uniform mesh (made by a continuous extrusion process of plastic material such as polythene, polyvinyl chloride, nylon or polypropylene) the net like material being bundled or gathered into a general cylindrical rod-like form and the bundled or gathered core being enclosed in an outer wrapper. A roll 4 of the plastics material in flattened tubular form is mounted with the axis of rotation of the roll 4 transverse to the longitudinal axis of garniture 6, which includes a funnel like member 7 converging towards and carried with tubular member 8. An endless belt passes through members 7 and 8. Core material 5 and wrapper material 10 from roll 9 are led together through the garniture to form rod 11 which passes the heated sealing roller 12 and cutter 13. If the net like material is too bulky it may be stretched by hot-air treatment immediately prior to entry into the garniture. The wrapper material may be of transparent thermoplastic material.
Patent GB-735417-A (GB)
Title: Photographic materials containing ultraviolet radiation absorbing compounds
IPC: G03C1/815
Filed: 1953-10-30
Abstract: 735,417. Photographic material. KODAK, Ltd. Oct. 30, 1953 [Oct. 31, 1952], No. 30107/53. Class 98 (2). Photographic material having at least one light-sensitive layer contains in at least one of its layers a compound of the general formula wherein R is an aryl group. The compound may be applied in a coating having a gelatin, cellulose ester, or synthetic resin binder over the light-sensitive layer, or between the blue- and green- or the green- and red-sensitive emulsion layers of colour photographic material. The compound may be incorporated in the emulsion instead of or in addition to being present in another layer. The coating composition may be prepared by mixing a tricresyl phosphate solution of 9-benzalfluorene with a gelatin dispersion. The photographic material may be bathed in an aqueous solution of the compound when it contains a water-solubilizing carboxylic, sulphonic or hydroxy group. The compound may be incorporated in the material during manufacture or in the finished and processed material.
Patent GB-605962-A (GB)
Title: Improvements relating to processes for the production of foundation piles in reinforced concrete or the like
IPC: E02D5/48
Filed: 1945-11-12
Abstract: 605,962. Piles. COMPAGNIE INTERNATIONALE DES PIEUX ARMES FRANKIGNOUL SOC. ANON. Nov. 12, 1945, No. 30197. Convention date, May 8, 1943. [Class 68 (ii)] A foundation pile of reinforced concrete or the like is formed of a shank section, preferably with an enlarged base, cast in the ground, with a prefabricated pile post super-imposed, a reinforcement in the shank projecting upwards into a layer of concrete or the like, which surrounds the lower part of the pile post and is keyed to it by anchoring means. As shown, the casing tube 4 is sunk until a resistant layer is reached, then the shank section 1, with enlarged base 2, is cast. The shank terminates a distance a, equal to the length of the pile post, below the surface. The reinforcement 5, with ring reinforcement 7 projects above the shank into the mass of plastic concrete 6 poured into the tube. The pile post 3 is then inserted into the concrete 6 and reinforcement 5, 7, while the tube and/or the post is vibrated. The anchoring means of the pile post may comprise annular grooves 9 or a projecting reinforcement in the post. The casing tube is removed when the joint is completed. Longitudinal grooves may be provided in the pile post to conduct mortar &c. to the joint if required.
Patent GB-377517-A (GB)
Title: Improvements in butter and like dividers
IPC: A01J21/02
Filed: 1931-10-31
Abstract: 377,517. Moulding butter &c. in rotary-mould-table machines. BENZ, J. and HILGERS, W., (trading as BENZ & HILGERS), 246, M³nsterstrasse, D³sseldorf, Germany. Oct. 31, 1931, No. 30205. Addition to 376,595. [Class 87 (ii).] The moulds b .. e described in the parent Specification are arranged inside the rim of a wheel wand the excess material is discharged through apertures x in the rim by the press plungers and is removed by a scraper z bearing against the rim. The apertures x preferably widen outwards in conical form to lessen their resistance to the extruded material.
Patent GB-1291915-A (GB)
Title: MACHINES FOR IMPRINTING HOLLOW CYLINDRICAL ARTICLES e.g. CUPS
Inventor: ROER HUMPHRY ALPHONS VICTOR VA
IPC: B41F17/28
Filed: 1970-06-22
Abstract: 1291915 Printing on cups H A V VAN DER ROER 22 June 1970 [21 June 1969] 30215/70 Heading B6C In a machine for offset printing the curved surfaces of cups 22, Fig. 4, forme cylinders 20 apply multi-coloured images to offset segments 1 each of which is movable radially of the shaft about which it rotates. Each segment is pivotally mounted on an arm structure 2 through a pivot pin 3, Fig. 3, so that the printing surface may readily align with the cup surface should the latter have slight irregularities. Each segment is normally in a radially extended position relative to the supporting shaft pneumatic means being employed within the arm structure for this purpose.
Patent GB-894641-A (GB)
Title: Improvements in or relating to fuel elements for nuclear reactors
Inventor: HARPER JOHN
IPC: G21C3/10
Filed: 1959-09-04
Abstract: 894,641. Welding by fusion; soldering. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Sept. 2, 1960 [Sept. 4, 1959], No. 30266/59. Class 83 (4). [Also in Group XL (a)] A weld 18 between magnesium alloy sheath 12 and end cap 13 of a nuclear fuel element (see Group XL (a)) is made by inserting a magnesium alloy strip in a recess and then melting the strip by electrical resistance heating. According to the Provisional Specification the magnesium alloy strip may be replaced by a strip of silver or other metal which is melted to form a diffusion seal. Specification 790,389 is referred to.
Patent GB-1403751-A (GB)
Title: Vehicle having a drivers cab tiltable relatively to the  chassis
IPC: F15B11/12
Filed: 1972-06-29
Abstract: 1403751 Hydraulic actuators APPLIED POWER INDUSTRIES Inc 29 June 1972 [9 Dec 1971] 30542/72 Heading F1D [Also in Division B7]  A hydraulic actuator for adjusting the relative angular positions of a pivotally mounted cab and a vehicle chassis has a lost motion connection such that the cab can pivot relatively to the chassis under the control of a spring 5 e.g. a coil, torsion or leaf spring. The free end of piston 7 has an auxilliary piston 10 slidable in a bore 9 with lostmotion F. An eyelet 12 receives a pin (not shown) fixed to the cab. In a modification, a sleeve 16, Fig. 4, is slidably mounted on the piston rod 7 by means of a pin and slot connection 17, 18, providing lost-motion F the sleeve 16 being provided with an eyelet 12 for fixing. In a further embodiment, Fig. 3 (not shown) the end of the piston rod has an enlarged head provided with an elongated bore for receiving a fixed pin (15).