baber/WOPTO huggingface dataset:
Patent GB-347871-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D11/00
Filed: 1930-04-23
Abstract: 347,871. Steam turbines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees, of Dempster, J. A. ; 1382, Myron Avenue, Schenectady, New York, U.S.A.) April 23, 1930, No. 12559. Convention date, April 24, 1929. [Class 110 (iii).] Leakage-preventing devices.-The packing-ring 17 attached to a rotor 5 between blade carrying wheels 7 to coact with an interstage diaphragm 8 is formed of segments 20 having recesses 18 adapted to engage flanges 12 on the rotor. The segments ate notched at 19, and corresponding notches 13 are formed at one point in the rotor flanges. The packing-ring is built up by inserting the segments radially at the notches 13, and then moving them circumferentially in the groove. The last segment is locked by a screwed stud 23. The coacting surfaces are serrated and spaces are left about the segments to reduce transfer of heat to the rotor.
Patent GB-575798-A (GB)
Title: Construction of aircraft runways, roads, floors and like surfaces, and manufacture of water-repellent materials therefor
IPC: E01C7/36
Filed: 1943-08-04
Abstract: Materials for the construction of aircraft runways, roads, floors, and like surfaces for the purpose of conferring water-repellent properties, consist of a mixture of at least two powdered ingredients from the following groups: (a) water-soluble salts of water-insoluble carboxylic acids, (b) water-soluble salts of polyvalent metals, (c) water-insoluble polyvalent metal salts of carboxylic acids produced by interaction of materials from groups (a) and (b), (d) water-insoluble carboxylic acids, and (e) salts of acidic polyvalent metal oxides which are either water-soluble or are decomposed by water into a water-soluble base and a water-insoluble polyvalent metal hydroxide, provided that (i) if ingredients from only two groups are used, they shall not be chosen from groups (a) and (d), (b) and (d) or (b) and (e); (ii) ingredients from at least two groups shall be included unless two or more ingredients from group (c) are employed; and (iii) that a substance from group (a) may be replaced by a mixture of the carboxylic acid and sodium carbonate, soda ash, or other non-hygroscopic substance capable of producing a water-soluble salt of the carboxylic acid.  Suitable substances specified are sodium rosinate, sodium stearate, or the sodium salts of modified alkyd resins from group (a), aluminium sulphate and ferrous sulphate from group (b), aluminium rosinate, aluminium stearate, and ferrous stearate from group (c), resin and stearic acid from group (d), and sodium aluminate, ferrite, or zincate from group (e).  According to examples, mixtures of the sodium salt of wood rosin and aluminium sulphate, the aluminium and sodium salts of wood rosin, wood rosin, sodium carbonate and aluminium sulphate, and sodium aluminate and wood rosin or its sodium salt may be used.  The mixture, to which may be added a dry diluent such as sand, is applied to the moist ground or to a laid surface of soil, sand, ashes, ground cinders, stone dust, or the like, the ground having been harrowed prior to the application and being subsequently consolidated as by rolling.  Alternatively, the mixture may be mixed with the ground materials, together, if desired, with binding materials such as asphalt, bitumen, or anhydrous calcium sulphate and compressed into blocks. Specifications 575,479 and 575,484 are referred to.
Patent GB-696364-A (GB)
Title: Polymers of imino compounds and the manufacture thereof
IPC: C08G73/02
Filed: 1950-05-03
Abstract: Compounds of formul  <FORM:0696364/IV (a)/1> or <FORM:0696364/IV (a)/2> where Y1 is an aliphatic radical containing a most 4 carbon atoms or an araliphatic hydrocarbon radical the aliphatic chain of which contains 2 carbon atoms; Y2 is an aliphatic hydrocarbon radical, the carbon chain of which may be interrupted by oxygen or sulphur atoms; X is a carboxylic salt, ester, amide or nitrile group; R2, R3 and R1 are hydrogen or alkyl radicals; and n is an integer from 2 to 47 are polymerized in presence of a sulphuric ester or sulphonic ester as a catalyst. The compounds of formula (1) may be the addition products of alkylene imines and unsaturated carboxylic acids (see Group IV (b)).  The compounds of formula (2) may be obtained from alkylene imines and a  : b -olefine carboxylic esters of polyhydric alcohols, see Specification 693,611 (Group IV (b)). The Specification contains many examples of compounds of formul  (1) and (2) and of polymerization catalysts.  The polymerization products may be used as adhesives, coating materials and cast or moulded bodies, e.g. anatomic models, and may be prepared on a sub-stratum, e.g. wood, paper, leather, glass- or textile-fibres. Some of the polymerization products are easily soluble, e.g. in methanol and water.  In one example titanium dioxide and copper phthalocyanine is added to polymerized tris-(b -ethylene iminobutyric)-glycerol ester.ALSO:Compounds of formula <FORM:0696364/IV (b)/1> where Y1 is an aliphatic radical containing at most 4 carbon atoms or an araliphatic hydrocarbon radical the aliphatic chain of which contains 2 carbon atoms; X is a carboxylic salt, ester, amide or nitrile group; and R2, R3 and R4 are hydrogen or alkyl radicals, are prepared by the addition of alkylene imines to the salts, esters, amides or nitriles of unsaturated carboxylic acids (e.g. acrylic, methacrylic, crotonic, sorbic and cinnamic acids).  The compounds polymerize in presence of sulphuric or sulphonic acid esters as catalysts (see Group IV (a)).
Patent GB-500686-A (GB)
Title: A process for the preparation of zinc oxide powder
Filed: 1938-04-27
Abstract: 500,686. Phosphate cements. DEUTSCHE GOLD-UND SILBER-SCHE1DEANSTALT VORM. ROESSLER, LOEBICH, O., and HINDERER, O. April 27, 1938, No. 12624. [Class 70] [Also in Group III] In the preparation of a zinc oxide powder for use in the production of phosphate cements for dental purposes, the initial material consisting of zinc oxide with or without subordinate quantities of magnesium oxide, bismuth oxide, or aluminium silicates is ground extremely finely, and the resulting powder then subjected to heat treatment at temperatures which do not cause sintering to such a degree that the produc has to be reground. Temperatures of 700-800 G. are preferred, but any temperature from 400 to 1000‹ C. may be used. The heat treatment removes the discoloration developed by grinding and avoids too rapid setting when the powder is triturated with phosphoric acid.
Patent GB-1351175-A (GB)
Title: Sealing member
IPC: E04B1/686
Filed: 1971-05-03
Abstract: 1351175 Joint sealing members ACME HIGHWAY PRODUCTS CORP 3 May 1971 [16 Feb 1971] 12709/71 Heading E1B An elongate elastic neoprene sealing member for an expansion joint comprises two side portions and an intermediate portion formed integrally. The intermediate portion has an internal truss structure allowing it to expand and contract in the manner of a concertina. The end portions are tubular with walls 18, 20, 32, 26 thicker than those of the intermediate portion and braced so as to prevent its collapse in compression until the intermediate portion is substantially fully collapsed. The outer surfaces of the end portions may have longitudinal grooves 114 which serve to retain a settable liquid adhesive during installation.
Patent GB-1142484-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J63/00
Filed: 1966-03-23
Abstract: 1,142,484. Steroids. UPJOHN CO. 23 March, 1966 [24 March, 1965], No. 12857/66. Heading C2U. [Also in Division A5] The invention comprises compounds of the formulµ wherein R, R 1  and R 2  each represent hydrogen or methyl, W is in which R 3  is hydrogen or the acyl radical of a C 1 -C 16  hydrocarbon carboxylic acid, R 4  is hydrogen or C 1 -C 4  hydrocarbon radical, X is Y is hydrogen or fluorine; and Z is compounds of the formulµ and the corresponding 17-keto compounds wherein R, R 1 , R 2  and R 3  are as defined above, compounds of the formulµ and a process that comprises treating a 6α-(2<SP>1</SP>- hydroxyethyl)-androst-4-ene-3-one with a sulphonic acid halide and subjecting the 6α-(2<SP>1</SP>- sulphonyloxyethyl)-androst-4-en-3-one so obtained to treatment with a strong base to produce the corresponding spiro-[androst-4-ene-6, 1<SP>1</SP>-cyclopropane]-3-one. If desired the 17#- hydroxy compounds may be acylated to form the 17#-acylates, the 3-keto compounds subjected to reduction to form the 3#-hydroxy compounds, the 11# hydroxy compound oxidized to form the corresponding 11-keto compounds and/or acylation may be effected to produce the corresponding 3#-acylate, 17#- acylate or 3#,17#-diacylate. Ring A saturation may be effected with hydrogen and palladized charcoal, and reduction of the 3-keto group with alkali metal borohydride. Oxidation may be effected with chromic acid, an N- haloamide or N-haloimide. The 3-tetrahydropyranyl ethers are obtained by treating a 3- hydroxy-17-acyloxy compound with dihydropyran in the presence of a Lewis acid and then if desired hydrolysing to produce the 17- hydroxy compound which in turn may be oxidized to form a 17-keto compound. The latter products may be hydrolysed in 3-position and the 3(3-hydroxy compounds so produced oxidized to the corresponding 3-keto compounds. The 17α - alkyl - 17# - hydroxy compounds are obtained by treating the corresponding 17-keto compounds with a Grignard reagent and if desired may be acylated to form the corresponding 17a-alkyl-17#-acyloxy compounds. #<SP>1</SP>'<SP>4</SP>-compounds are obtained from the corresponding #<SP>4</SP>-compounds by dehydrogenation, e.g. by fermentation or chemically as with Se02. The 2-hydroxymethylene products are obtained from the 2-unsubstituted compounds by treatment with an alkyl formate and sodium hydride in an inert atmosphere and if desired are treated with a lower alkanol in the presence of an acidic agent to give the corresponding 2-alkoxymethylene derivative.
Patent GB-474688-A (GB)
Title: Improvements in or relating to bobbin stripping machines
IPC: B65H73/00
Filed: 1936-05-08
Abstract: 474,688. Bobbin-stripping machines. WILLIAMS, S. G., and BROOKS, C. May 8, 1936, No. 12974. [Class 120 (iii)] In a machine for stripping and untwisting yarns, threads, rovings, sliver, or the like from bobbins the roller pairs A, A ; B, B<1>, Figs. 1 and 2, are positively driven by toothed gears and are mounted in ball or roller bearings 1. The roller pairs are geared together at a, b and the drawing-off rollers B, B<1> are connected to the stripping rollers A, A<1> by gearing b, e, d, c so that the rollers B, B<1> rotate the faster. If desired the gear b<1> may be omitted and the rollers B, B<1> connected by gears f.
Patent GB-738082-A (GB)
Title: Improvements in or relating to regulators
IPC: F23N3/04
Filed: 1952-05-22
Abstract: 738,082. Controlling furnace draught. FELL, C. A. May 22, 1953 [May 22, 1952], No. 13021/52. Class 51 (1). A regulator for a boiler damper comprises a damper-actuating lever 28 supported on an adjustable pivot 31 for pivotal movement by leveroperating means connected to and actuable by a heat-sensitive element, said pivot being associated with a calibrated member 34 whereby the effective position of said pivot is determined by manual setting of the calibrated member. As shown in Fig. 1, the pivot 31 is comprised by an eccentric portion of a shaft 30 upon which is mounted a hand-grip 34 having a calibrated dial thereon. The damper is connected by means of a chain 41 to the lever 28, the angular position of which lever may be varied by adjustment of a screw 32 mounted on the plunger 22 of a heat sensitive device. The heat sensitive device is mounted on the casing of the boiler and as the boiler temperature rises the plunger 22 moves upwardly, allowing the lever to pivot in a clockwise direction and causing the damper to close.
Patent GB-811299-A (GB)
Title: Improvements in and relating to shaft seals
Inventor: HORSLEY WILLIAM DOUGLASS
IPC: H02K5/124
Filed: 1955-05-05
Abstract: 811,299. Stuffing-box substitutes. PARSONS & CO. Ltd., C. A. April 25, 1956 [May 5, 1955], No. 13072/55. Class 122 (5). A rubbing-collar seal has an axially-movable sealing ring c<SP>1</SP> engaging a collar a<SP>1</SP> in a rotary shaft b<SP>1</SP> and the sealing ring is arranged with a projection p<SP>1</SP> extending into an enclosing housing f<SP>1</SP> to form separate chambers o<SP>1</SP>, n<SP>1</SP> to each of which fluid under pressure is supplied so that the contact pressure at the sealing face may be controlled by varying the pressure differential in the two chambers. An annular groove r<SP>1</SP> divides the sealing face, the outer portion d<SP>3</SP> having a plurality of radial oil grooves, whilst the inner part presents a continuous face to collar a<SP>1</SP>. The ring c<SP>1</SP> is urged against the collar a<SP>1</SP> by fluid pressure and by spring plungers e<SP>1</SP>; a stop g<SP>1</SP> engages a groove h<SP>1</SP> in the projection p<SP>1</SP> to prevent rotation of the ring c<SP>1</SP>. Sealing rings kl, l<SP>1</SP>, m<SP>1</SP> of O or U- shape retain the fluid pressure in chambers n<SP>1</SP>, o<SP>1</SP>. The sealing fluid oil is fed to the inner chamber n<SP>1</SP>, and through passages q<SP>1</SP> to the sealing face of the ring. The axial pressure on the sealing face of the ring c<SP>1</SP> may be varied by adjusting the pressure differential in the two chambers, as by manually or automaticallycontrolling the fluid supplied to the outer chamber o<SP>1</SP>. This chamber may be supplied with oil from the same or a different source as chamber n<SP>1</SP> or with a different oil or other fluid.
Patent GB-873908-A (GB)
Title: Improvements in or relating to 2-methyl-2-úe-propyl-n-monosubstituted-1:3-propanediol dicarbamates and method of manufacture
IPC: C07C271/06
Filed: 1958-04-24
Abstract: The invention comprises dicarbamates of the formula <FORM:0873908/IV (b)/1> (wherein X is an ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl or allyl radical) and their preparation by reacting a monocarbamate of the formula <FORM:0873908/IV (b)/2> (wherein Z is a hydrogen atom or X) with, when Z is hydrogen, an isocyanate XNCO or phosgene followed by an amine NH2X, or with, when Z is X, cyanic acid, a urethane or phosgene followed by ammonia.  Examples are given, and the muscle relaxing activity of the products is compared with that of other dicarbamates of the formula <FORM:0873908/IV (b)/3> (wherein R is variously methyl or ethyl, R1 is variously ethyl or n-propyl, X is variously hydrogen, methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, iso-amyl, allyl or benzyl, Y is variously hydrogen, methyl or ethyl, X1 is variously hydrogen, methyl or ethyl and Y1 is variously hydrogen or ethyl.  Monocarbamates, of the second formula above, are prepared (1) by reaction of 2-methyl-2-n-propyl-1,3-propane diol with diethyl carbonate to give 5-methyl-5-n-propyl-m-dioxanone and then treatment of this with ammonia or the amine NH2X; or (2) by the controlled action of phosgene on the diol followed by reaction with ammonia or the amine NH2X.  Specification 751,841 is referred to.ALSO:Pharmaceutical compositions contain, as essential active ingredient, a dicarbamate of the formula <FORM:0873908/VI/1> (wherein X is an ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl or allyl radial).  They may take the form of pills, tablets, capsules or solutions.  Specification 751,841 is referred to.
Patent GB-637283-A (GB)
Title: An improved device for securing a shrub or plant to a support
IPC: A01G17/12
Filed: 1948-05-13
Abstract: 637,283. Plant supports. PERKINS, C. H. May 13, 1948, No. 13087. [Class 6 (ii)] Shrubs &c. are supported by winding deformable tubing 3 around the shrub and its support, the ends of the tubing being, passed through holes 7 in an oval plate 6.
Patent GB-131562-A (GB)
IPC: A47B39/04
Abstract: 131,562. Bennet, G. April 10, 1919. Seat adjustment.-A school desk and seat supporting-frame consists of tubular members which are bent and slit to form seat and desk supporting limbs and a base to rest on the floor. The vertical seat and desk supporting limbs 1<a>, 2<a> telescope in the vertical limbs 1, 2 of the base members 3, the parts being secured in adjustment by nuts 6 on the screwed slit ends of the limbs 1, 2. The cross-bar 13, which carries the seat, is dovetailed at its ends in the limbs 1<a>.
Patent GB-1342295-A (GB)
Title: Method of manufacturing commutator segments
IPC: H01R43/06
Filed: 1971-05-05
Abstract: 1342295 Making commutator segments; extruding ALLMANNA SVENSKA ELEKTRISKA AB 5 May 1971 [6 May 1970] 13168/71 Headings B3A and B3P [Also in Divisions C7 and H2] A method of making a commutator segment comprises hydrostatically extruding a billet having an aluminium or aluminium alloy core surrounded by a copper or copper alloy casing, splitting the billet lengthwise and cutting the split portions to the required length for the segment. The billet is either extruded tapering in thickness towards its centre line, Fig. 3 (not shown) or it is of constant thickness, Fig. 4 (not shown), in which case it is subsequently rolled to a thinner section at its centre. The taper is selected to correspond with the required taper of the segments. In the finished segment, the copper is much thinner at the sides 5 than on the contact surface 6.
Patent GB-131969-A (GB)
IPC: B64C3/18
Abstract: 131,969. Mooney, D. J. July 8, 1918. Framework.-Spars, longerons, &c. for aircraft are strengthened at the parts where the stresses are greatest by attaching reinforcing plates or strips, or by forming the spars &c. of telescoping parts so that the overlapping of the parts provides double section of metal at the desired points. Fig. 2 shows reinforcing- plates c attached to the top and bottom members of a spar. The outer edges of the plates c may be curled over the edges of the flanges, or may be bent over and secured to the web. Fig. 6 shows a spar composed of two members each made up of a corrugated web with channel flanges e, reinforcing-strips c being provided as shown; or a reinforcing-plate may be fastened across the two members. Fig. 8 shows a spar with sections telescoping from h, to i. In the form shown in Fig. 9, the webs k overlap, but the flanges a abut at and are provided with reinforcing-plates c.
Patent GB-943719-A (GB)
Title: Graphite coating of fuel particles
IPC: G21C3/62
Filed: 1962-04-06
Abstract: Nuclear fuel particles are coated with pyrolytic graphite produced by the thermal decomposition of a hydrocarbon gas in the presence of the particles to be coated. The fuel is preferably uranium monocarbide, uranium dicarbide or a uranium oxide while methane, ethane, propane and benzene are suitable hydrocarbons. The process is carried out at a temperature between 1700 DEG  C. and 3000 DEG  C. and a pressure of between 1 mm. and 200 mm. of mercury, in a hollow graphite cylinder rotatable about its longitudinal axis. For example, 30 gm. of uranium dicarbide in the shape of spherical particles of diameters between 177 and 250 microns are charged into the graphite cylinder which is filled with argon at a pressure of 20 mm. of mercury and rotated at a speed of 30 r.p.m. while its temperature is raised to 1700 DEG  C. by means of a surrounding induction coil, methane being introduced into the cylinder at a rate of 0.2 litre/min.  After 4 hours of processing, the methane supply is shut off and the cylinder allowed to cool to room temperature, the particles then having a graphite coating of average thickness about 80 microns.
Patent GB-650493-A (GB)
Title: Manufacture of alkyl xanthogenate glycol formates
IPC: C07C329/00
Filed: 1948-05-14
Abstract: Xanthate derivatives, termed alkyl xanthogenate glycol formates, are prepared by reacting one mol. of a glycol chloroformate containing two chloroformate radicals with at least one and not more than two mols. of an alkali metal alkyl xanthate. According to one method, an alkali metal alkyl xanthate is slurried in an inert organic liquid such as ether or benzene and the glycol chloroformate is added slowly at a low temperature, e.g. below 5 DEG  C.; inorganic salts are then filtered off or leached out with water and the solvent distilled off. Alternatively, the xanthate is added directly to the chloroformate, preferably at below 40 DEG  C., followed by washing or drying.  In a third process, the chloroformate is added to a cold water solution of the xanthate at about 5 DEG  C. and the product which separates out as an oil is removed and dried.  Mixtures of xanthates may be used. The products, derived from diglycol chloroformate for illustrative purposes may have the general formula <FORM:0650493/IV (b)/1> or <FORM:0650493/IV (b)/2> where R=alkyl, depending on whether one or two mols. of xanthate are employed.  The compounds may be used as flotation reagents, in which connection reference is made to Specification 650,498, [Group II].  In examples, the following compounds are interacted, using one or other of the above methods and in molecular proportions of xanthate to chloroformate of 1 : 1 or 2 : 1, (1) sodium ethyl xanthate, sodium sec.-butyl xanthate, sodium isopropyl xanthate and potassium amyl xanthate, respectively, with diglycol bis.-chloroformate; (2) sodium isopropyl xanthate, sodium ethyl xanthate and potassium amyl xanthate, respectively, with ethylene glycol bis-chloroformate; (3) sodium isopropyl xanthate with trimethylene glycol bis-chloroformate or dipropylene glycol bischloroformate; (4) sodium ethyl xanthate with octadecane diol bis-chloroformate (prepared by action of phosgene in carbon tetrachloride on the diol), triethylene glycol bis-chloroformate and butine-2-diol-1 : 4 bis-chloroformate, respectively.  The Specification as open to inspection under Sect. 91 states that the glycol chloroformates may be reacted with at least one mol. of alkali metal xanthate.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1440624-A (GB)
Title: Production of urea
IPC: C07C273/04
Filed: 1973-07-03
Abstract: 1440624 Production of urea INVENTA AG FUR FORSCHUNG UND PATENTVERWERTUNG 2 Oct 1974 13358/73 Heading C2C Urea is produced from ammonia and carbon dioxide in a reaction vessel in which the reaction temperature is preferably at least 160‹ C., and water is continuously removed from the urea melt in the reaction vessel, so that the molar ratio of the water to the urea produced in the reaction vessel is preferably always less than 1. The water removal may be effected by withdrawing part at least of the gases present in the reaction vessel, separating the water in a partial condenser, and recycling the dried gases to the reaction vessel.
Patent GB-731154-A (GB)
Title: Improvements in or relating to the cooling of finely divided solids
IPC: B01J8/00
Filed: 1951-06-06
Abstract: 731,154. Cooling granular materials. JONES, D. C. RHYS-, JENKINS, G. I., and NATIONAL COAL BOARD. June 3, 1952 [June 6, 1951], No. 13413/51. Class 64 (2). A mass of hot, finely-divided, solid material, such as coal, is cooled by water and air introduced into the mass to produce an upward stream of water vapour and air through the material to maintain it in a turbulent, fluidized state. In the apparatus shown, finely-divided coal is introduced by pipe 2 to a container 1 the flow being assisted by air pipe 4 and controlled by valve 3. Below the bed level 21, water is sprayed by jets 7, and at a lower point air is introduced below a distributing grid 11 by blower 8 and pipe 9 controlled by valve 10. Air, water vapour and entrained coal pass upwardly through cyclone separator 22, the air and vapour being vented by stack 26 and the coal recovered in chamber 29 or returned to the bed by pipe 23. The coal leaving the container may have its water content further reduced, by air diverted to nozzles 17 or a separately supplied air stream as it passes through baffles 14 and the cooled, dried coal, assisted by air through pipe 20, is discharged through valve 19. The pressure in the apparatus may be maintained above or below atmospheric.