baber/WOPTO huggingface dataset:
Patent GB-542494-A (GB)
Title: Improvements in and relating to fluxes for use in the production, remelting and casting of aluminium and its alloys
IPC: C22B9/10
Filed: 1940-07-08
Abstract: 542,494. Treating aluminium ; alloys. ORMISTON, H. O. July 8, 1940, No. 11399. [Class 82 (i)] Fluxes for use in the production, melting, and casting of aluminium and aluminium alloys contain lithium chloride and an aluminium salt of an organic acid such as aluminium acetate, with or without another alkali metal chloride, calcium fluoride, cryolite, and a deoxidizing agent such as sulphur. Sodium chloride may be the preponderating constituent, and the amount of calcium fluoride and cryolite together may be greater than that of the remaining ingredients other than the alkali metal chloride. An example contains 20 parts of calcium fluoride, 60 parts of sodium chloride, 2 parts of lithium chloride, 10 parts of cryolite, 6 parts of aluminium acetate, and 2 parts of sulphur. Molten metal to be cast may be skimmed, stirred with a small amount of the flux, again skimmed, stirred with a further amount of the flux, again skimmed, and then cast.
Patent GB-785025-A (GB)
Title: Manufacture and use of complex iron salts
IPC: C07F15/02
Filed: 1954-04-20
Abstract: The invention comprises water-soluble solid complex ferric compounds of nitrilo-triacetic acid which contain one atom of iron per molecule of the acid and 0, 1 or 2 alkali metal or ammonium ions per ion of nitrilo-triacetic acid-iron complex.  The compounds are prepared by reacting equimolecular proportions of a ferric salt and an alkali metal or ammonium salt of nitrilo-triacetic acid together in aqueous solution, or by oxidizing a ferrous salt of nitrilo-triacetic acid to the ferric salt in aqueous solution and at least partially neutralizing the resulting acid by the addition of an alkali metal or ammonium base, the aqueous solution being in each case evaporated to dryness.  Ferric salts are preferably ferric ammonium sulphate and ferric chloride, and these are preferably reacted with the potassium salts of nitrilo-triacetic acid.  The alkali metal or ammonium salts of nitrilo-triacetic acid may be formed in situ by reacting the free acid with an alkali metal hydroxide or carbonate or ammonia.  The ferrous salt of nitrilo-triacetic acid may be formed in situ from ferrous sulphate and is preferably oxidized to the ferric salt by means of hydrogen perioxide.  The examples describe the preparation of the potassium and ammonium salts of the ferric complex of nitrilo-triacetic acid.ALSO:A composition for treating plants for diseases caused by a deficiency of iron comprises water-soluble solid complex compounds of nitrilo-triacetic acid which contain one atom of iron per molecule of the acid and 0, 1 or 2 alkali metal (e.g. potassium) or ammonium ions per ion of nitrilo-triacetic acid-iron complex, together with an aqueous or solid diluent (e.g. kaolin or talc) and, if desired, a fertilizer and/or a pesticide and/or a weed killer.  The ferric complexes of nitrilo-triacetic acid may contain the ammonium and alkali metal chlorides and sulphates simultaneously formed during their preparation.ALSO:A composition for treating plants for diseases caused by a deficiency of iron comprises water-soluble solid complex ferric compounds of nitrilo-triacetic acid which contain one atom of iron per molecule of the acid and 0, 1 or 2 alkali metal (e.g. potassium) or ammonium ions per ion of nitrilo-triacetic acid-iron complex, together with an aqueous or solid diluent (e.g. kaolin or talc) and, if desired, a fertilizer and/or a pesticide and/or a weed killer.  The ferric complexes of nitrilo-triacetic acid may contain the ammonium and alkali metal chlorides and sulphates simultaneously formed during their preparation.
Patent GB-114795-A (GB)
IPC: A61G7/10
Abstract: 114.795. Elliman, J. Dec. 17, 1917. Sliding seats; rests, foot.-An invalid's chair is provided with a seat bottom which can be drawn backwards and forwards to facilitate placing the patient thereon or removing him therefrom. The pneumatic seating cushion d is moved backwards and forwards by cords n, e wound on rollers o, f geared together as shown and operated by a handle h. The movable part p of the back slides in guide-rails q. A sliding foot-rest r, and a check or brake appliance w are provided.
Patent GB-168111-A (GB)
Title: Improvements in and relating to machines for forming articles of glass
IPC: C03B9/40
Filed: 1920-04-26
Abstract: 168,111. Miller, W. J. April 26, 1920. Blowing.-Relates to tablerotating, transfer, and delivery mechanism in press-and-blow machines of the double rotating type. Fig. 1 is a plan of the mechanism below the parison-mould table B and blow-mould table C. Oscillating arms F, D are connected by a rod G and one operated from a crank-pin 7 by a rod E. Locking-bolts 12, 4 are provided which engage the tables during the operative stroke and are disengaged during the return stroke. The parisonmould table B is moved through 40‹ and the blowmould table C through 80‹ at each stroke. Locking-bolts 16, 17 are operated by rocking- levers 18, 19 and cams 1, 2 on the disc A. A swinging transfer arm I, Fig. 2, is operated by a slotted lever device 22 so as to start and stop slowly. It is raised and lowered by the piston-rod 24 of a pneumatic device. Delivery grippers Q of any suitable kind are made to slide radially along rods M by the lever mechanism L, K, J. The tables B, C rotate in the same -direction and are moved alternatively.
Patent GB-473249-A (GB)
Title: Signalling system for automatic annunciation of deficient pressure in pneumatic tyres on automobiles
IPC: B60C23/04
Filed: 1937-04-22
Abstract: 473,249. Controlling motor vehicles. RASMUSSEN, H. April 22, 1937, No. 11566. [Class 79 (v)] [Also in Group XXXIV] Means for actuating an acoustic or optical signal p on tyre deflation, stated to be operative for stopping the vehicle motor, comprise a switch m (controlled by the tyrepressure) in a circuit which includes a rotary contact-ring f and a stationary brush e housed within the brake-drum c. The ring f is fitted with a stud h with which a stud k on the hub b of the detachable wheel contacts when the latter is assembled over the hub of the brake-drum.
Patent GB-1384246-A (GB)
Title: Textile carding machines
IPC: D01G15/24
Filed: 1971-04-27
Abstract: 1384246 Carding surfaces PLATT INTERNATIONAL Ltd 24 April 1972 [27 April 1971] 11642/71 Heading DIN In a carding machine the main cylinder 10 cooperates with a fixed rigid plate 15 provided with needles 17 passing through and extending from said plate. The needles 17 have a circular section root and a tapered oval or circular section tip with an arcuately ground end 40. If oval the major axis lies in a plane perpendicular to the main cylinder axis 11. The needles are in axially aligned rows, alternate rows being staggered. Suitable needle densities lengths and inclinations are given. The plate 14 may be made up of elements 15 releasably connected together. Web 23 is fed to the main cylinder by a feed roll 20 and plate 19 and a taker-in 21. Fibres are then doffed by doffer 22. A waste extractor e.g. as described in Specification 1384247 may be provided between taker in 21 and the plate 14.
Patent GB-906328-A (GB)
Title: Production of unsaturated aliphatic aldehydes
Inventor: BETHELL JAMES ROBERT
IPC: B01J23/18
Filed: 1960-04-02
Abstract: A catalyst for use in the oxidation of propylene or isobutene to acrolein or methacrolein respectively comprises (i) a mixture of the oxides of tin or antimony and/or (ii) a compound of tin, antimony and oxygen, in which the atomic ratio of tin to antimony is between 10 and 50.  The catalyst may, if desired, be deposited on supports such as alumina or silica.  The catalyst may be prepared by mixing the oxides of antimony and tin, heating a mixture of antimony and tin hydroxides or by treating a mixed solution of antimony and tin salts with a volatile base such as ammonia and heating the precipitate obtained.  When the tin is present as a stannous compound it is preferred to first heat the precipitate in an atmosphere comprising oxygen and an inert gas at a temperature below 500 DEG C. and then subject it to a final heat treatment in air at 500 DEG -1100 DEG C.ALSO:Acrolein or methacrolein is prepared by reacting propylene or isobutene respectively at elevated temperature in the vapour phase with oxygen in the presence of an oxidation catalyst comprising (i) a mixture of the oxides of tin and antimony and/or (ii) a compound of tin, antimony and oxygen as described in the parent Specification, in which the atomic ratio of tin to antimony in the catalyst is between 10 and 50.  It is particularly preferred to use tin/antimony catalysts containing substantially no molybdenum or tungsten or compounds of these metals.  The preferred temperature for carrying out the process is in the range 300-500 DEG C.
Patent GB-1010052-A (GB)
Title: 13-alkyl steroids related to oestradiol
Inventor: HUGHES GORDON ALAN
IPC: C07J75/00
Filed: 1960-09-22
Abstract: The invention comprises compounds of the formula <FORM:1010052/C2/1> (wherein R is hydrogen, a substituted or unsubstituted alkyl group or an acyl group, R1 is an alkyl group of at least 2 carbon atoms, X is a hydroxymethylene or acyloxymethylene group and the substituents at the junctions in ring C are in the trans-anti-trans configuration) and their preparation (1) by reducing compounds of the formula <FORM:1010052/C2/2> (wherein R is hydrogen or a substituted or unsubstituted alkyl group, R1 is as defined above, and X is carbonyl or hydroxymethylene, ring C contains a D 8(9) or a D 9(11) double bond, the C : D ring junction is in the trans-configuration and the 8-hydrogen atom when present is anti to the 14-hydrogen atom) with an alkali metal in liquid ammonia to give products wherein R is hydrogen or substituted or unsubstituted alkyl and X is hydroxymethylene; or (2) by catalytic hydrogenation of the corresponding D 9(11)-steroids, followed, when required, by reduction of the 17-keto group to the 17b -hydroxy group, and, if required, acylation to a 17b -acyloxy compound.  The above structures include all states of resolution except the resolved 13a -enantiomers.  Examples are given, in one of which a 3,17-diacetate is prepared by actylation of a 3,17-diol. (\sB) - 8 - Dehydro - 18 - nor - 13b  - n - propyloestradiol 3-methyl ether is prepared by condensing 2 - n - propylcyclopentane - 1,3 - dione with 6 - m - methoxyphenyl - hex - 1 - en - 3 - one to give 2 - n - propyl - 2 - (61 - m - methoxyphenyl-31 - oxohexyl) - cyclopentane - 1,3 - dione, heating this with p-toluenesulphonic acid to give (\sB)-8, 14 - bisdehydro - 18 - nor - 13 - n - propyloestrone methyl ether, catalytically hydrogenating this to give (\sB) - 8 - dehydro - 18 - nor - 13b  - n - propyloestrone methyl ether are reducing this with sodium borohydride.  Similarly are prepared (\sB) - 8,14 - bisdehydro - 13 - n - butyl - 18 - noroestrone methyl ether and (\sB) - 13b  - n - butyl-8-dehydro-18-nor-oestron methyl ether. Specifications 1,010,053, 1,010,054 and 1,010,055 also are referred to.  Reference has been directed by the Comptroller to Specification 979,891.
Patent GB-823745-A (GB)
Title: Improvements in or relating to reversing valves for regenerative ovens, particularly regenerative coke-oven batteries
IPC: F16K1/00
Filed: 1957-04-11
Abstract: 823,745. Valves. KOPPERS G.m.b.H., H. April 11, 1957 [April 20, 1956], No. 11860/57. Class 135. A reversing valve which alternately passes waste gases from a regenerator to a waste gas flue and lean (producer or blast furnace) gas to the regenerator for preheating prior to combustion, comprises a valve body 1, Fig. 1, having connections 2, 3 and 10 with the regenerator, the waste gas flue and the lean gas supply duct respectively, a valve 5 controlling communication between the regenerator and the waste gas flue and an interconnected sliding gate valve 13 controlling communication between the lean gas supply duct and the regenerator. The gate valve is resiliently urged against its seat 12 by spring- loaded balls 35, Fig. 3, mounted in plugs 37 screwed into the body 1 so that the balls may be adjustable. The gate 13 is also resiliently connected to its operating spindle 14 by springs 29, 31 and a thrust collar 27 carried by the spindle so that with a plurality of reversing valves having their gates simultaneously moved by a single control member over-travel of one or more of the rods may occur after the gates have reached either of their limit positions to protect the valve mechanisms against damage. The spindle 14 is connected at its lower end to a lever 16, Fig. 7, which is in turn connected to a forked lever 18 which co-operates with clamps 20 on a control member 19. The spindle 6 of the valve 5 is similarly connected so that the valves 5, 13 are operatively connected to open and close in their correct sequence. The valve body is also formed with an opening 39 controlled by a hinged valve 40 operatively connected to the valve 5 as described in Specification 821,734 so that air may be supplied to a regenerator for preheating prior to combustion when the valve 5 is closed. When used in this way a cock in the lean gas supply duct is closed and the valve 13 opened by the control member 19 at the same time as the valve 40 or alternatively a pivot pin 42 may be removed when the valve 13 is in its open position. The valve remains in this position regardless of the movements of the control member 19.
Patent GB-1357844-A (GB)
Title: Method for cross-linking acrylic polymers
IPC: C09D133/06
Filed: 1972-04-18
Abstract: 1357844 Crosslinking hydroxyl-containing acrylic polymers ATLANTIC RICHFIELD CO 18 April 1972 [3 May 1971] 17871/72 Heading C3P A method of crosslinking an acrylic interpolymer having a hydroxyl number of from 20 to 150 and an acid number of from 5 to 25 to produce a thermosetting resin having high impact resistance, which interpolymer comprises units of (a) an alkyl ester of acrylic or methacrylic acid, (b) acrylic or methacrylic acid, (c) styrene, and (d) hydroxyethyl methacrylate or hydroxypropyl methacrylate, comprises contacting said interpolymer with a cyclic nitrile adduct having the structure wherein R is an organic radical of valency n and having from 2 to 200,000 carbon atoms and which is free of nucleophilic groups, X is -CO-, -SO- or -CO-CO-, and n is from 2 to 100,000, in the presence of, as catalyst, (I) a tertiary amine; or (II) (a) at least one compound of a first metal of Groups III to V of the Periodic Table, which is soluble in a reaction mixture of interpolymer and nitrile adduct and (b) at least one compound of a second metal selected from Groups I and II and the iron series of Group VIII of the Periodic Table, which is soluble in the reaction mixture; or (III) a compound of Al, Sn, Ti, Zn, Bi or Fe which is soluble in a reaction mixture of interpolymer and nitrile adduct, provided that when the compound is of Al, Sn, Ti or Bi said contacting is effected in the substantial absence of metals of Groups I, II and the iron series of Group VIII and further provided that when the compound is of Zn or Fe said contacting is effected in the substantial absence of metals of Groups III to V; or (IV) a combination of a compound from (I) with compound(s) from (II) or (III); said contacting being effected at a temperature of from 120 to 150‹ C. and with the ratio of the equivalents of the interpolymer and nitrile adduct being 1 : 1. A preferred nitrile adduct is adiponitrile carbonate. A mixture of the interpolymer, nitrile adduct and catalyst can be coated from solution, e.g. by brushing or spraying, on to a substrate (e.g. aluminium panels) and cured at 120-150‹ C.
Patent GB-527801-A (GB)
Title: Folding umbrellas
IPC: A45B19/04
Filed: 1939-04-20
Abstract: 527,801. Umbrellas. HAUPT, H. April 20, 1939, No. 11932. Convention date, April 21, 1938. [Class 134] In folding umbrellas, the telescoping stick parts 1, 2 are maintained in the extended position and are prevented from coming apart when being extended by spring latches 18, 19 respectively which are independent of each other. The latch 19 is manually operated as by a rod 15' which is pushed inwardly and has a cranked end 14' engaging an inclined slot 13<SP>1</SP> in the latch 19. In operative position the square shoulders of the latches engage the end of the stick member 1 and the end of a slot 27 therein, the latches being formed integrally with a spring strip 22 housed inside the stick member 2. The surfaces of the latches are bevelled so as to be pressed inwards by the outward and inward movement of the member 1. The Specification as open to inspection under Sect. 91 comprises also a construction in which a single latch member with a bevelled nose and long and short shoulders at the sides thereof are used. This subject-matter does not appear in the Specification as accepted.
Patent GB-1497157-A (GB)
Title: Process of preparing 7-mono-o-(beta-hydroxyethyl)-rutosid
IPC: C07H17/07
Filed: 1975-03-21
Abstract: 1497157 Rutoside derivative ZYMA SA 21 March 1975 [9 April 1974] 12020/75 Headings C2C and C2B 7 - Mono - O - (# - hydroxyethyl) - rutoside is prepared by reacting in an at least partially aqueous medium, rutoside with a boric acid alkali metal salt, e.g. borax, in an amount substantially not exceeding the amount necessary to form the complex of Formula I in which R = rhamnosido-glucose and M = alkali metal, reacting this complex with ethylene oxide to form the mono-O-(#-hydroxyethyl) derivative in the 7-position, and freeing the groups blocked by the boric acid complex by treatment in an at least partially aqueous medium.
Patent GB-696218-A (GB)
Title: Metallic elements for use in heating apparatus
Inventor: JAQUES THOMAS ARTHUR JOHN
IPC: H05B3/64
Filed: 1950-05-15
Abstract: 696,218. Coating with metals. NATIONAL RESEARCH DEVELOPMENT CORPORATION. April 19, 1951 [May 15, 1950], No. 12030/50. Class 82(ii) [Also in Group XI] A metal strip is curved or bent to form both a tubular heating cavity 2 and a succession of spaced elongated outer, cavities 3a ... 3b around said cavity in all or nearly all radial directions for limiting heat loss, the end regions of the strip defining the outermost cavities. The tantalum strip may have electric connections 4, 5 and serve as a heating resistance. A temperature of 2500‹C may be attained in the vacuum vaporization of metals, a directional characteristic being given to the metal vapours. The strip may serve as a radiation shield for a heated body in the cavity and may taper to or from its ends.
Patent GB-779339-A (GB)
Title: A fan or blower, especially for use in pneumatic conveyor equipment
IPC: F04C18/20
Filed: 1956-04-20
Abstract: 779,339. Rotary pumps. MONTEIL, J. A. April 20, 1956, No. 12071/56. Class 110 (2). A rotary vacuum pump or blower comprises a peripherally-grooved rotor 1 which is provided with vanes 3 engaging a rotary abutment 10 and an endless belt 4 passing over pulleys 6. One pulley is synchronously driven in conjunction with the members 1, 10 and some pulleys are preferably adjustably mounted for belttensioning purposes. The casing is provided with scrapers 15, 16, 17 and dust deflectors 18. The belt is urged against the rotor 1 by rollers 7 and a relief valve 20 is incorporated between the inlet and outlet conduits.
Patent GB-1383820-A (GB)
Title: Mattress support
IPC: A47C23/06
Filed: 1972-03-15
Abstract: 1383820 Mattresses &c. O SCHAROWSKI 15 March 1972 [16 March 1971] 12077/72 Heading A4M A mattress support comprises a plurality of cross-members 13, of wood, metal or synthetic resin, individually supported at each end by an adjustably pre-tensioned, elastic connecting piece secured to an associated side frame member 11, in such manner that each cross-member can rotate about its longitudinal axis and cannot bear with its underside on the side frame members. In one embodiment, Fig. 2, a rubber ring 17 is selectively engaged around screws 15, 16 and 19-21 respectively secured to the side frame 11 and the cross-member 13. The tensioned ring 17 draws the cross-member 13 upwardly to engage a step 22. In another embodiment, Fig. 4, the connecting piece comprises a nylon band 30 secured at one end to the frame 11 and at the other end to a rubber band 31 selectively engaged with one of a plurality of hooks 33-35 on the cross-member 13 or on a cap 32 fitted thereon. In a further embodiment, Fig. 6 the cross-member 13 is supported by a rubber ring 40 passed selectively around one or more screws 41-43 or the side frame 11.
Patent GB-591615-A (GB)
Title: Safety razor
IPC: B26B21/16
Filed: 1945-05-14
Abstract: 591,615. Safety razors. FELDMAN, M. May 14, 1945, No. 12012. Convention date, Aug. 8, 1944. [Class 30] A holder, for safety-razor blades having notched ends, is made from one piece of wire bent to form handle runs 12, joined together at 8, and extending forwardly of a guard bar 9 for the cutting edge and guard bars 10 for the ends. Notches 13 retain the blade 5 close to the guard bars 9 and 10. The forward side of the guard bar 9 may be flattened and the guard bars 10 notched or recessed and provide a more complete guard for the ends of the blade.
Patent GB-474607-A (GB)
Title: Improvements in or relating to electric smoothing circuit arrangements
IPC: H02M1/15
Filed: 1936-04-29
Abstract: 474,607. Automatic regulation; smoothing circuits. BLUMLEIN, A. D., and WHITE, E. L. C. April 29, 1936, No. 12117. [Classes 38 (ii) and 38 (iv)] Direct-current potentials are smoothed by means of a thermionic valve or valves connected between the supply 2 and a positive load terminal 17, the control grid being maintained at a potential positive with respect to the negative terminal 3, 18 and subject to variation by a superimposed potential derived from an impedance connected across the supply terminals and caused to vary with, but in an opposite sense to, variations in the supply potential. The invention includes means correcting sudden or transient as well as slow variations of the supply potential. The impedance 1, Fig. 1, is a potentiometer, its tapping 4 controlling the potential of the grid of a triode 7 in series with impedances 8, 9, so that the potential of its anode receives variations similar to, but opposite in sense to, those occurring in the supply voltage. This potential may be applied through the condenser-resistance combination 10, 11, to the grid of the regulating valve 16, but in order to deal with grid currents which might flow in this valve, it is preferably applied to the grid of a second triode 12 in series with an impedance 15, and the cathode of this valve is connected to the grid of the regulating valve. The time constants of the condenser-resistance combinations 5, 6 and 10, 11 are long so that slow variations are transmitted. Decoupling provision may be made to prevent h.f. oscillation. To deal with slow as well as rapid changes in supply voltage, batteries may be used in place of condensers and resistances for coupling the grids of valves 7 and 12. In the modification shown in Fig. 2, the varying potential at the point 25 on the impedance is compared with a reference potential at a point 24 on a potentiometer 27 connected across a discharge path in a neon tube, which is across the supply terminals in series with an impedance 19. By means of a tapping on a resistance 23 a suitable part of the supply voltage variation is applied to the grid of a valve 21, which produces a reversed potential charge on its anode for application to the grid of the regulating valve 31 through de-coupling means29,3032. A further valve maybe interposedasin Fig. 1. The neon tube may be replaced by a battery and the resistance 19 omitted. In a further modification, the potentiometer 27 may extend between the negative terminal 3, and the connected cathodes of the valve 21 and a further triode having its anode connected to the supply terminal, a battery providing the necessary reference potential being connected between its grid and the negative terminal 3. Slow variations in supply potential are corrected by arrangements according to Fig. 2, and its modifications, in addition to transient variations. Specification 446,294 is referred to.