baber/WOPTO huggingface dataset:
Patent GB-296488-A (GB)
Title: Method of and arrangement for regulating the number of revolutions of electric induction motors
IPC: H02P27/04
Filed: 1927-06-08
Abstract: 296,488. Wist, E. June 8, 1927. Motor-generators.- Induction motors 14, 15 are controlled to run at various speeds by feeding them from an induction generator 7 driven from an induction motor 4, the frequency of the feed current being varied by varying the number of poles and reversing the rotating field of one or both machines. The motor 4 takes current from alternating supply mains which may be singlephase mains used in conjunction with a phasesplitting arrangement. A synchronous motor or generator may replace the machine 4 or 7 in certain cases.
Patent GB-637958-A (GB)
Title: A device for forming the hips in womens' garments while supported for display
IPC: A47F8/02
Filed: 1948-06-08
Abstract: 637,958. Lay figures. SAGE (DISPLAY FITTINGS), Ltd., F., and OSBORN, A. J. June 8, 1948, No. 15462. [Class 52 (v)] A garment display device has a hip-forming member comprising a carrier plate 1 to which two hip-forming arms 2 are pivotally mounted. The carrier 1 is provided with a block 11 into which a rod of a stand 10 can be screwed. The carrier 1, which has lugs 20 to prevent the skirt being displaced, may be provided with spring clips to draw in the waist of a skirt. As shown in Fig. 5 the device may be provided with a pivoted upper attachment 19 to allow a dress to be displayed.
Patent GB-269363-A (GB)
Title: Improvements in or relating to cord connected dental tools or instruments
IPC: A61G15/16
Filed: 1926-06-21
Abstract: 269,363. Pieper, O. H. June 21, 1926. Stands and the like.-A dental equipment stand is provided with a resilient or spring- actuated clip for holding the cord of the tool in use against the pull on the reserve portion. On the front of the table part 11 of the support 10 is provided a. pair of clips c, one of which is shown holding the cord of an instrument 14 against the pull of a weighted pulley 17. The clips, Fig. 4, are formed with turned up ends 21 and flange sides 23 to facilitate insertion of the cord, and may be spring actuated as shown or the pair may be constructed from a strip of resilient metal. A separate clip may be provided for each cord.
Patent GB-515171-A (GB)
Title: Manufacture of optically active menthones and menthols
IPC: C07C35/12
Filed: 1938-05-26
Abstract: 515,171. Catalytic reduction of laevopiperitone. HOWARDS & SONS, Ltd., BLAGDEN, J. W., and HUGGETT, W. E. May 26, 1938, Nos. 15734/38, and 13206/39. [Class 1 (i)] [Also in Group IV] Optically active menthones and menthols are prepared by hydrogenating laevo-piperitone at a temperature below 140‹C. in the presence of a hydrogenation catalyst which is free from. magnesium or contains not more than about 5 per cent. of magnesium and which is not appreciably basic or acidic and does not develop a basic or acidicreaction during the hydrogenation. The hydrogenation to the menthone stage is preferably conducted in the presence of an organic solvent containing oxygen and having a dielectric constant of at least 15. If it is desired to hydrogenate further to the menthol stage such a solvent should be removed as it retards this further hydrogenation. In examples (1) Laevo-piperitone is reduced in methylated spirit solution in the presence of a catalyst prepared by evaporating to dryness a mixed solution of nickel and chromium nitrates followed by igniting, washing and drying the residue. The catalyst is removed and the product consisting of menthone is reduced to menthol by hydrogenation in the presence of a catalyst prepared from a mixture of the carbonates of copper, nickel and magnesium by' heating in an open dish, washing the mixed oxides' and reducing. (2) Laevo-piperitone is reduced in methanol solution in the presence of a catalyst prepared by.heating a mixture of copper, nickel and magnesium carbonates, washing and reducing the oxides. (3) Laevopiperitone is hydrogenated in the presence of a catalyst prepared by dissolving "Mond" nickel in an excess of nitric acid followed by evaporating, igniting and reducing the oxide.
Patent GB-934527-A (GB)
Title: Improvements in or relating to the production of antibiotics
Inventor: HOCKENHULL DONALD JOHN DARLING
IPC: C07D/
Filed: 1960-05-04
Abstract: In the production of griseofulvin by the submerged aerobic culture of a griseofulvinproducing organism in a nutrient therefor, the medium contains assimilable nitrogen at a level of more than 0,3% (calculated as N), and a nutrient carbohydrate serving to supply carbon and energy requirements of the organism is repeatedly added to the medium during the course of the culture in such quantities and at such times that the pH of the medium follows a controlled pH curve as defined in Specification 868,958. Specifications 784,618, 934,526 and 934,528 also are referred to.
Patent GB-719665-A (GB)
Title: Improvements relating to automatic control valves for variable load braking apparatus for vehicles
IPC: B60T8/18
Filed: 1952-06-25
Abstract: 719,665. Fluid-pressure brakes. WHITE, J. April 24, 1953 [June 25, 1952], No. 15946/52. Class 103(1) In an automatic control valve device for variable load braking apparatus for vehicles, a valve governs communication between a first and second chamber and a measuring piston or diaphragm has its working face subjected to the pressure in the first chamber and acts through a first spring to extend a measuring member against the opposing action of a second spring; a dash pot device is included comprising a pair of axially aligned and rigidly spaced apart movable abutments, the arrangement being such that the valve is opened by the movement of the abutment in one direction and allowed to close by the movement of the abutment in the other direction. In one form, the vehicle is equipped, in addition to the usual brake pipe, triple valve, brake cylinder and auxiliary reservoir, with means for measuring the deflection of the vehicle springs and thus the load carried by the vehicle, a variable volume device and an automatic control valve which forms the subject of the invention and functions in such a manner that when the vehicle is fully loaded, the communication between the brake cylinder and the variable volume device is cut off and when the vehicle is empty or partially loaded and is established, when a brake application is initiated, until a predetermined proportion of the compressed air supplied to the brake cylinder has passed into the variable volume device, thus reducing the brake force exerted by the brake cylinder by an amount determined by the vehicle load. The automatic control valve comprises a cylindrical body having end casings 2, 19 housing the working parts, and mounted on the vehicle underframe. In operation, upon the initiation of a brake application. compressed air is supplied to the brake cylinder (not shown) and passes into the communicating supply chamber 15, the measuring piston 16 thus being forced outwards against the action of the spring 18, the length of its stroke depending upon the deflection of the vehicle springs. This movement is transmitted through the cross member 21 and longitudinal rods 5, 30 to the yoke 1 and through the yoke to the calibrated spring 3 which is compressed accordingly and transmits a corresponding thrust through the oil dashpot device 10 to the diaphragm 12 which controls the opening of the spring loaded valve 13 controlling the flow of air from the supply chamber 15, connected with the brake cylinder, to the second chamber 26 connected with the variable volume device, until the pressure in the latter, acting on diaphragm 12, overcomes the opposing force exerted by the calibrated spring 3 and allows the valve to reclose. Upon release of the brakes, the pressure in the brake cylinder falls below that in the variable volume device and the valve accordingly opens to allow air from the latter to pass back into the brake cylinder and thence to atmosphere. Specifications 602,382 and 719,666, [Group XXXII], are referred to.
Patent GB-417474-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23M3/00
Filed: 1933-06-02
Abstract: 417,474. Furnace firebridges. WILLETT, J. R. A., 32, Fencepiece Road, PUTT, F. J., Mossford House, Mossford Green, both in Barkingside, and MATTISON, F. W., 89, Ladysmith Avenue, Seven Kings, Ilford, both in Essex. June 2, 1933, No. 15977. [Class 51 (i).] A furnace of the type in which a mixture of air and steam is introduced directly to the combustion chamber f through openings at the top of a hollow partition or bridge b without passing through the grate portion is provided with means for introducing additional secondary air comprising pipes h communicating with the interior of the bridge and projecting into the combustion chamber. The bridge is formed by plates connected by bolts and distance pieces b' and is covered at the top by a number of detachable cover pieces g, each formed with a number of tapering and rearwardly and upwardly directed passages g<1>. Adjacent the firebox d the bridge is provided with a firebrick or like reinforcement. Rigidly held within and near the top of the bridge is a steam pipe e having a number of outlet nipples e<1> and fed from a steam pipe e<2> through a superheater coil e<3> in the combustion chamber. Air enters the bridge through a controllable inlet b<4> and passes in part through the passages g<1> under the action of the steam issuing from the pipe e and in part through pipes h. The ends of the pipes h project into the bridge and are shaped as shown to deflect some of the ascending air into the pipes.
Patent GB-1173812-A (GB)
Title: Mixing Gases and Liquids with a Liquid Medium
IPC: B01F3/08
Filed: 1967-04-07
Abstract: 1,173,812. Circulation mixers. BADISCHE ANILIN-& SODA-FABRIK A.G. 7 April, 1967 [9 April, 1966], No. 16065/67. Heading B1C. [Also in Division C2] In a process and apparatus for mixing gas and liquid into a liquid medium, the gas and liquid (which has a velocity of 5-100 m/sec) are injected through nozzles into an openended chamber the mean inlet diameter of which is twice to twenty times the mean diameter of the liquid nozzle, and the length of of which is three to thirty times the diameter of the equivalent cylindrical tube (if the chamber is not of circular cross-section). As shown the chamber is a tube 3; liquid and gas are injected by coaxial nozzles 1, 2; and mixture is discharged at 10. Part of the liquid is externally recirculated by a pump 9, and there may be a tube 7 through which internal circulation in either direction may take place on the air lift principle with the assistance of guide baffles (not depicted). The chamber may be a conical frustum, or (see Fig. 2, not shown) annular (3) in conjunction with radial nozzles (1, 2) in star formation. The process may be applied to the oxidation of hydrocarbons especially cyclohexane.
Patent GB-1394950-A (GB)
Title: Means for separating out bits
IPC: D01G11/04
Filed: 1973-04-04
Abstract: 1394950 Separating aglomerates of fibre from opened material TRUTZSOHLER & CO KG 4 April 1973 [2 June 1972[ 16070/73 Heading D1N [Also in Division B2] A device for separating aglomerated bits of fibre from opened fibrous material comprises a drum 1 with 2 cm wide holes 7 in its lower casing, a shaft 9 rotates within the drum and carries radial bars 13 with resilient blades 15, at their ends 13 which sweep the drum surface pushing the fibrous material through the holes 7 and are inclined to the axis of the shaft 9 to move the bits towards an open end 3 of the drum. Fibre is delivered to an inlet 4 of the drum by a conveyor 6. Vanes 18 serve to push the fibrous material away from the closed end 2 of the drum. Suitable dimensions and spacings are given for the holes 7 which direct the opened fibrous material to a chute 8.
Patent GB-1484591-A (GB)
Title: Prostaglandin compositions
IPC: C07D309/12
Filed: 1974-04-11
Abstract: 1484591 Compositions containing prostaglandins ONO PHARMACEUTICAL CO Ltd 10 April 1975 [11 April 1974] 16242/74 Heading A5B [Also in Divisions C2 and C3] A composition for the production of an oxytocic, abortifacient, post-labour placental expulsion, contraceptive or menstruation-inducing effect in female mammals comprises (1) a PGF 1 α compound, a dihydro-PGF 1 α compound, a PGF 2 α compound or a 13, 14- dihydro-PGF 2 α compound characterised, by the presence of an alicyclic ring of the formula:- and by the presence of (a) a trans-double bond between C 13 -C 14  and an ethylene group in C 5 -C 6 , or (b) ethylene groups in C 5 -C 6  and C 13 -C 14 , or (c) a cis-double bond between C 5 -C 6  and a trans-double bond between C 13 -C 14 , or (d) a cis-double bond between C 5 -C 6  and an ethylene group in C 13 -C 14 , in association with (2) a PGE 1  compound, a dihydro-PGE 1  compound, a PGE 2  compound or a 13, 14-dihydro-PGE 2  compound characterised by the presence of an alicyclic ring of the formula:- and by the presence of (a) a trans-double bond between C 13 -C 14  and an ethylene group in C 5 -C 6  or (b) ethylene groups in C 5 -C 6  and C 13 -C 14 , or (c) a cis-double bond between C 5 -C 6  and a trans-double bond between C 13 -C 14  or (d) a cis-double bond between C 5 -C 6  and an ethylene group in C 13 -C 14 .
Patent GB-1588403-A (GB)
Title: Machine for crushing bulk material
IPC: B02C18/18
Filed: 1978-04-25
Abstract: The machine which contains the cutting mechanism and is used in particular for comminuting waste consisting of sheet metal, plastic, glass, wood, textiles and the like has two shafts (5) which are driven in opposite directions at the same speed of rotation and bear cutting bodies of the cutting mechanism which intermesh in pairs. The said cutting bodies have cams (1) and indentations (2) which are distributed uniformly over the circumference and have sharp outer edges. The cams (1) and indentations (2) of the cutting bodies, which are opposite one another in pairs, intersect slightly during operation. In the planar end faces (3) of the cutting bodies, a circulating depression (4) which is matched to the external contour of the said bodies is arranged, the outer limits of the depression being located in the region of the edge zones of the cutting bodies which intersect one another during the operation of the machine. When wear of the edge zones of the cutting bodies has occurred, this permits simple readjustment of the said bodies in the axial direction. <IMAGE>
Patent GB-725065-A (GB)
Title: Improvements relating to gas filters
Inventor: RABBITT MILTON
IPC: B01D46/42
Filed: 1953-06-16
Abstract: 725,065. Gas filters. FRAM CORPORATION. June 16, 1953, No. 16571/53. Class 8 (2). A nipple-like pressure responsive diaphragm 24 for indicating clogging of a filter element 15 located in a cartridge 10 comprising inlet and outlet screens 11, 12 and a top 16 closes a hole 18 by-passing said filter element and is disposed so as to extend outwardly during normal back pressures and to be drawn inwardly on a predetermined increase in back pressure. The diaphragm which is of rubber is located in a grommet 20 in an arched portion 17 of the cover 16. The filter element is of fibrous material as described in Specification 681,890.
Patent GB-641772-A (GB)
Title: Improvements in and relating to safety guards for circular saws
IPC: F16P3/00
Filed: 1948-06-21
Abstract: 641,772. Machinery guards. ROWLEY, Ltd., W., and SANEY, J. June 21, 1948, No. 16599. [Class 80(iv)] A circular saw a carried by a pivoted arm b is enclosed by a sheet metal guard d gapped on each side to allow the saw to pass through the work piece. The rear gap is covered by a sheet metal guard o secured to the clamp f holding the work stock e. The forward gap is covered by a pivoted flap h whose lower edge is provided with a lip covering the saw teeth. An arm j secured to the pivot spindle k of the flap is formed with a cam surface adapted to coact with a fixed post n to open the flap when the arm b is lowered to bring the saw into the cutting position. The flap is closed, upon raising of the arm b, by gravity or by a spring p.
Patent GB-731275-A (GB)
Title: Improvements relating to nut and screw assemblies
Inventor: SAYCE LEONARD ALFRED
IPC: F16H25/24
Filed: 1952-07-03
Abstract: 731,275. Screw - and - nut gearing. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 3, 1953 [July 3, 1952], No. 16739/52. Addition to 684,846. Class 80 (3). An improvement in or modification of the invention of the parent Specification consists in making the thread portion of the nut component of pith, preferably that of the elder tree, which is impregnated with a solid lubricant applied thereto in aqueous solution and subsequently dried. This lubricant may be polytetrafluorethylene, graphite, or molybdenum sulphide. Suitable strips of the pith may be mounted upon a sheet of gelatine-coated cellulose nitrate cut to size and fixed to the jaws of the nut component by means of a suitable cement.
Patent GB-638781-A (GB)
Title: Improvements in or relating to castor wheels
IPC: B60B33/06
Filed: 1948-06-22
Abstract: 638,781. Castors ; adjustments. VENNING & CO., Ltd., J., and VENNING, J. D. E. June 22, 1948, No. 16765. [Classes 52 (i) and 52 (iii)] [Also in Group XXX] In a castor wheel 1, rotatable on a spindle mounted in a fork 2 secured to a piston 6 which is slidable and. rotatable in a cylinder 4, the piston is movable outwardly relatively to the cylinder by an inflatable sack 10 to the interior of which fluid pressure is supplied. The cylinder 4 is rotatably fitted into a cylindrical member 3 which is integral with the fork 2 and secured to the piston 6. Flanges 7 prevent the piston from leaving the cylinder when hydraulic or pneumatic pressure is supplied to the sack 10 through an adaptor union 11. The cylinder 4 is also provided with a flange 5 by which it can be secured to a truck floor. In a modification the guiding cylinder 3 is dispensed with and the piston is elongated to engage the inside of the cylinder 4 sufficiently to prevent tilting.
Patent GB-384579-A (GB)
Title: Improvements in and relating to humidity responsive apparatus
IPC: G01N25/62
Filed: 1932-06-14
Abstract: 384,579. Hygrometric apparatus. BRITISH THOMON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Tripp, C. K. ; 14, Pierce Road, Lynn, Massachusetts, U.S.A.) June 14, 1932, No. 16847. Convention date, June 15, 1931. [Class 97 (iii).] A humidity responsive device comprises a pair of coaxially arranged bellows containing expansible fluid and rigidly supported at their outer ends and connected together and to a lever at their inner ends, the temperature of one of the bellows being controlled in accordance with the humidity. In the form shown the bellows 10, 11, filled with sulphur dioxide, are fixed at their outer ends to a framework 12 and at their inner ends to a coupling rod 13 which is attached to one end of a lever 18 pivoted at 19. The bellows 11 is in communication with a hollow inflexible tubular member 14 surrounded by a wick-like covering 17 and extending downward to a tank 15 which is kept supplied with water from a bottle 16. The lever 18 may carry a contact adapted to move between adjustable stationary contacts 20, 21, the circuit closed thereby being used to operate signals or humidity controllers.
Patent GB-444522-A (GB)
Title: Steam heating system
IPC: F24D1/00
Filed: 1935-06-11
Abstract: 444,522. Heating by circulation of fluids. CASTELLAZZI, G. A., 4, Via E. Cernuschi, Milan, Italy. June 11, 1935, No. 16865. Convention date, June 22, 1934. [Class 64 (ii)] In a steam heating system in which a heating body 1 is connected between a chamber 5 through which a mixture of steam and air is supplied thereto and a chamber 6 for receiving the condensate for return to the boiler, the chambers are interconnected at their lower ends through an hydraulic seal and at their upper ends through a calibrated port 9, the upper ends also communicating with the atmosphere through a second calibrated port 10. The variable pressure difference created between the chambers controls the steam circulation through the heating body. Each of the orifices 9, 10 may be controlled by a needle such as 11 and the resistance to flow of the steam through the heating body may be varied by the insertion of a throttle in the connecting pipe 8 between the heating body and chamber 5. The temperature of the heater may also be varied by variation of the steam pressure and the air content in the heating mixture.
Patent GB-901557-A (GB)
Title: Launderable and dry cleanable water-resistant and oil-resistant textiles
IPC: D06M13/477
Filed: 1960-05-13
Abstract: 901,557. Proofing textiles against water and oil. DE MARCO, C. G., and DIAS, G. M. May 13, 1960 [Oct. 6, 1959], No. 16884/60. Class 140. Textiles are rendered water- and oil-resistant by applying (a) a pyridinium halide of the formula in which R is an aliphatic hydrocarbon radical of at least 12 carbon atoms, A is -O- or -CONH- and Hal is halogen; and (b) a fluorine compound which is either a polymerizable fluoroalkyl ester of acrylic acid in which the fluoroalkyl group has 4-10 carbon atoms and at least 9 fluorine atoms or a Werner-type chromium complex in which trivalent nuclear chromium is co-ordinated with a saturated perfluoro-monocarboxylic acid containing 5-11 carbon atoms, the weight ratio of (a) to (b) being 1-10: 1, and curing the textile at above room temperature. The compounds are added to the textile in water, the pyridinium halide in solution, preferably buffered with sodium acetate, the fluorine compound as an emulsion, the two dispersions being combined. The total amount added should be such as to increase the weight of the textile by 2-7% (dry) and the treated textile is dried at 200-300 F. and cured at 250-100‹ F. The pyridinium halide is preferably octadecyloxymethyl or stearamidomethyl pyridinium chloride. The fluoroalkyl acrylate is preferably added as a partial polymer capable of further polymerization. Suitable Werner complexes have the formula in which R is a perfluorinated C 4 -C 10  alkyl group. The textile treated may be natural or synthetic.
Patent GB-273327-A (GB)
Title: Process of improving products obtained from vegetable fibres
IPC: D06M11/38
Filed: 1927-06-24
Abstract: 273,327. Melliand, M., (Assignee of Dubac, A.). June 25, 1926, [Convention date] . Liquids, treating with.-In a process for improving products such as fabrics of vegetable fibres, the material is subjected to two or more interdependent treatments with concentrated bases such as mercerizing liquors, the liquors being used alternately hot and cold in any described sequence, the action being stopped in each case immediately after the structural alterations of the filaments desired have been effected. In the treatment of cotton materials, the ordinary mercerizing processes may be used and may precede or follow treatment. according to Specification 254,695. In an example, ordinary cotton muslin is mercerized in the usual manner to form lamp shade lining, then treated for three minutes with caustic soda lye (43 per cent NaOH) at 92 C. Immediately after the structural change is effected, the lye is displaced by boiling water, and, should the product not be satisfactory, it is impregnated for a short time with 25 Be. caustic soda lye at 18 C., this in turn being removed without stretching the material. If the lye employed for the hot treatment is of higher concentration for example 60 per cent NaOH, the feel of the material becomes somewhat fuller.
Patent GB-1196076-A (GB)
Title: Process for Producing Orotidylic Acid
IPC: C12P19/30
Filed: 1968-04-09
Abstract: 1,196,076. Orotidylic acid. KYOWA HAKKO KOGYO CO. Ltd. 9 April, 1968 [18 April, 1967; 24 June, 1967], No. 16957/68. Heading C2C. Orotidylic acid is prepared by culturing a micro-organism of the genus Brevibacterium Arthrobacter, Corynebacterium or Micrococcus under aerobic conditions at a temperature of 20 to 40 C. and apH of 4.0 to 9.5 in an aqueous nutrient medium containing at least one compound selected from 6-azauracil, 5-hydroxyazauracil, ribosides or ribotides thereof, inorganic salts thereof, and optionally a precursor amount of orotic acid or the sodium or ammonium salt thereof or oritidine. Suitable specified species of micro-organism are B. ammoniagens and M. sodonesis.