baber/WOPTO huggingface dataset:
Patent GB-802073-A (GB)
Title: Improvements in or relating to the removal of acetylenes from hydrocarbons containing butadiene
IPC: C07C7/10
Filed: 1957-06-13
Abstract: Methyl, ethyl and vinyl acetylenes are removed from a butadiene-bearing stream containing them in minor amounts by contacting with an aqueous solution of cuprous ammonium acetate containing no more than 2.5 mols. per litre of cuprous ions in an amount to absorb a major amount of the vinyl acetylene and no more than minor amounts of other acetylenes and contacting the raffinate with a second cuprous ammonium acetate solution in an amount to extract substantially all remaining vinyl acetylene and at least a major amount of methyl and ethyl acetylenes.  The feed stream may contain 0.001-2 per cent by weight of each acetylene. The first cuprous solution should be dilute and may contain in mols./litre 0.05 to 0.7 cupric, 0.5 to 2.5 cuprous, 5-12 ammonia and 2 to 7 acetate, is used in a weight ratio to hydrocarbon of between 0.05 and 1.0 and preferably extracts at least 80 per cent of the vinyl acetylene. Such solutions can readily be stripped of vinylacetylene without excessive polymerization.  The second cuprous solution may be the same but is preferably more concentrated, containing 2.0 to 4.0 mols./litre cuprous, is used in a weight ratio to hydrocarbon of between 0.2 and 0.5, and preferably removes 80-90 per cent of the total acetylenes from the partially treated stream.  Temperatures of 10-60 DEG  F. are used in each extraction.  Vinyl acetylene may be stripped from the first cuprous solution by heating to 150-225 DEG F. at pressures near atmospheric and below 50 p.s.i.g.  The stripped solution may also, if desired, be passed through an activated charcoal filter in which case the solution is maintained at 100-225 DEG  F. for 2-7 hours to ensure removal of polymer.  Other filter media such as silica gel, kieselguhr, alumina or molecular sieves may be used. Alternatively all the vinyl acetylene may be removed as polymer by heating to 150-225 DEG  F. at 0-70 p.s.i.g. for 2-20 hours and filtering off the polymer formed.  Polymer content should be reduced to less than 0.1 per cent by weight to avoid foaming.  The solution freed of vinyl acetylene is cooled and recycled. Acetylenes in the second solution are removed by stripping, followed, if necessary, by filtering, any minor amounts of butadiene absorbed being removed, if desired, by selective desorption prior to the stripping.
Patent GB-420540-A (GB)
Title: Safety switching device for ignition circuits of engine and other circuits
IPC: B60R16/02
Filed: 1933-06-30
Abstract: 420,540. Dashpots. GONNARD, J., 9, Rue Marcel, Sembat, Marseilles, France. June 30, 1933, No. 18672. Convention date, July 18, 1932. [Class 108 (iii)] [See also Groups XXVI, XXI, and XXXVII] An electromagnetic safety-switch permits automatic closing of the ignition, lighting and circuits, and the operation of dashboard relay apparatus for fuel feed, oil, &c. when the engine is started up, and the breaking of these as soon as the engine stops. The switch is controlled by a dashpot comprising an oscillating vane 47 with an aperture 47<1> therein controlled by a membrane 48 and adjusted by a screw 46.
Patent GB-222250-A (GB)
Title: Improvements in control apparatus for electrical machines
IPC: H02K7/102
Filed: 1923-07-20
Abstract: 222,250. Austin, G., and Austin, Ltd., G. July 20, 1923. Constant-speed control systems. - Relates to constant-speed control apparatus for direct-current motors of the kind used with a constantcurrent supply and controlled by shifting the brushes relatively to the field-magnet axis. A centrifugal governor B, Fig. 1, acting upon a brake 7 checks the normal running of an idle wheel 11 of a differential gear, thus causing the opposite wheel 12 to revolve and communicate motion through a pinion 22 and rack 23 to a brush-rocker in the direction to reduce speed. The brush-rocker is initially set by a handle 25 and the point of action of the governor upon the brake is adjusted as required by a handle 33. In a modification shown in Fig. 3, the opposite wheels 104, 105 of the differential gear are mounted on a screwed spindle 102 and are separately checked by brakes 112, 113 acted upon by a centrifugal governor not shown. The screwed spindle thus moves longitudinally and acts upon brush shifting gear so as to correct both for acceleration and retardation relative to an adjustable, set speed.
Patent GB-774129-A (GB)
Title: Improvements in or relating to seat suspensions
Inventor: CARVER HENRY RICHARD
IPC: B60N2/16
Filed: 1954-06-25
Abstract: 774,129. Seats. WOODHEAD-MONROE, Ltd. June 23, 1955 [June 25, 1954], No. 18788/54. Classes 52 (1) and 52 (2). A seat 42 is carried by a frame connected by parallel links 44, 45 to a base support and is resiliently mounted on a helical compression spring 56 preferably coaxial with an hydraulic shock-absorber 47 the lower end of which is adjustably mounted. As shown the adjustment consists of a pivoted arm 49 having a latch pin at its end to engage holes 53 in an arcuate bar 54. Modifications are described wherein the lower end of the shock absorber can be displaced along the base plate. The seat frame is preferably slidably adjustable from front to back and rubber buffers 69 may be fitted to the top end mounting of the shock absorber.
Patent GB-426030-A (GB)
Title: Ammunition loading device with chain conveyor for small-arms
IPC: F41A9/76
Filed: 1934-06-26
Abstract: 426,030. Smallarms. SOSSO, G., 91, Corso Francia, Turin, Italy. June 26, 1934, No. 18828. Convention date, June 26, 1933. [Class 119] Relates to magazines in which the cartridges are carried on an endless band 1 arranged around drums 2, 3 the drum 2 being automatically rotated at each discharge by the movement of the breechbolt. According to the invention, a lever 9 arranged in the path of a projection 10 on the breechbolt actuates during recoil of the bolt, a pawl 7 engaging teeth 6 on the axle of the drum 2.
Patent GB-293204-A (GB)
Title: Improvements in drying apparatus
IPC: F26B11/02
Filed: 1927-07-15
Abstract: 293,204. Michaelis, K., and Masehinenfabrik Buckau Akt.-Ges. July 15, 1927. Rotating conveyers.-Rotary drying apparatus of the kind comprising a series of externallyheated tubes disposed between the end-plates g, h of an inclined enclosing drum and through which the material to be dried flows is mounted upon an axle comprising a central tube a and journals b, c secured to the tube. The boss k of the endplate g is positioned on the journal b by a ring o and secured by a. screw p and a stuffing-box is formed between the journal and the boss, and the end-plate It is slidably supported on the journal c. In a modification, the stuffing-box and the screw are dispensed with and the boss of the end-plate is secured to the journal by rings. In another arrangement, the boss is formed with an inwardly directed flange which engages with a recess in the journal. In a further modification, the boss is positioned by a resilient ring s, Fig. 6, and secured to the journal by a screw.
Patent GB-1385920-A (GB)
Title: Process for producing nicotinic acid
IPC: C07D213/803
Filed: 1973-04-19
Abstract: 1385920 Nicotinic acid NIPPON SODA CO Ltd 19 April 1973 18896/73 Addition to 1385919 Heading C2C Nicotonic acid is prepared by oxidizing a mixture of at least two dialkylpyridines with an amount of nitric acid of from 100 to 125 weight per cent of that theoretically required for the oxidation, at a temperature of from 200‹ to 235‹ C. and a pressure of from 25 to 45 kgms./ cm.<SP>2</SP>, for a period of from 5 to 60 minutes, maintaining the pH value of the reaction mixture between 1À5 and 3À5, and then concentrating and cooling the reaction mixture to crystallize nicotinic acid therefrom. A basic material may be added to the concentrated reaction mixture before cooling. Suitable starting materials include 2 - methyl - 5 - ethyl pyridine; 2,5- lutidine; 2 - methyl - 5 - butyl pyridine and 2-propyl-5-ethyl pyridine.
Patent GB-1009216-A (GB)
Title: Coated olefin polymers
IPC: C08J7/046
Filed: 1964-05-07
Abstract: Polyester resins are formed by reaction of a 2,4,6 - trioxo - s - triazine - 1,3,5 - (2H,4H,6H)-trialkanoic acid and a polyhydric alcohol. Curing agents which may be included are bishydroxymethyl urea, hexamethoxymethylmelamine, trihydroxymethyl - melamine, dihydroxymethyl ethylene-urea, methylene bisacrylamine, divinyl sulphone, or acrylic or methacrylic anhydride.  The acid component may be the triacetic or tripropionic acid; the alcohol may be ethylene glycol, diethylene glycol, 1,3-propanediol, 1,2-propanediol, triethylene and tetraethylene glycol, 1,4-butanediol, 1,5-pentanediol, neopentyl glycol, 1,6-hexanediol, pentaerythritol, glycerol, trishydroxymethyl - ethane, trishydroxymethyl-propane, dipentaerythritol, sorbitol or xylitol. Dicarboxylic acids such as succinic, maleic, glutaric, adipic, suberic or azelaic and alkyl-substituted derivatives thereof, or terephthalic or 1,4-cyclohexane-dicarboxylic acid, and monocarboxylic acids such as tall oil fatty acids may be included in the reaction mixture.  The product may be dissolved in aqueous ammonia, or an alcohol, ketone or ester solvent to form a composition for coating polythene bottles to render them impermeable to organic liquids.ALSO:Solid olefin polymers are coated with a polyester formed from a 2,4,6-trioxo-s-triazine-1,3,5(2H,4H,6H)-trialkanoic acid and a polyhydric alcohol.  The coating may be applied in aqueous or organic solvent solution by spraying or dipping, and cured by heating; as curing agent, a methoxymethyl-melamine, an acrylic compound or divinyl sulphone may be included.  The olefin polymer which may be in the form of a bottle, drum liner, toy, electrical component, automotive part or houseware may be flamed before coating.
Patent GB-751671-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K5/132
Filed: 1954-06-29
Abstract: 751,671. Stuffing-box substitutes. GENERAL ELECTRIC CO. June 29, 1954 [July 6, 1953], No. 19071/54. Class 122(5) [Also in Groups XXXIV and XXXV] A submersible dynamo - electric machine rotor shaft seal 28 for preventing the ingress of the external media, e.g. well water, or the egress of the liquid filling, e.g. oil, of the machine, which filling is maintained at a higher pressure than that of the external media, comprises, rotating with a shaft extension 19 and abutting a shoulder 69 thereof, a metal washer 70, a resilient washer 71 and a cup-shaped washer 72; the stationary part of the seal comprises a sealing washer 73 loaded by a helical compression spring 76 which in turn is sealed by a resilient annulus 75, the whole being enclosed by cup-shaped members 63, 66, whose engaging flanges 64, 65 form a combined flange 29 which is resiliently secured between a double end flange, not shown, of the machine.
Patent GB-298699-A (GB)
Title: Improvements in or relating to the dyeing or otherwise colouring of materials made with or containing cellulose esters or ethers
IPC: D06P1/32
Filed: 1927-07-19
Abstract: 298,699. British Celanese, Ltd., Ellis, G. H., and Olpin, H. C. July 19, 1927. 4-Chlor-2-amino-4<1>-ethoxydiphenylamine is obtained by reduction of the nitro compound obtained from 2: 5-dichlornitrobenzene and pphenetidine.
Patent GB-275592-A (GB)
Title: Improvements in or relating to processes for carrying out exothermic chemical reactions
IPC: C01C1/04
Filed: 1927-07-19
Abstract: 275,592. Soc. l'Air Liquide, Soc. Anon. pour l'Etude et l'Exploitation des ProcÚdÚs G. Claude, (Assignees of Soc. Chimique de la Grande Paroisse (Azote & Produits Chimiques)). Aug. 9, 1926, [Convention date]. Catalytic apparatus.-In apparatus for carrying out exothermic reactions the gases afterleaving the catalyst are passed without furtherheat transference into indirect contact with the hottest zone of the catalyst and then circulate in indirect contact with the cooler zones of the catalyst. As shown in Fig. 1, the reagents enterthe reaction chamber by an annular passage A and pass through tubes B into contact with the catalyst; the reagents may be preheated or heated by electrical means within the chamber. The gases traverse the catalyst and the reaction products pass at D into a tube E. which conveys them to the hotter end of the chamber, whereafter they leave the chamber by the annularpassage X and tube Y. Several tubes E, X maybe provided, and the chamber may be externally cooled. In another modification, the tube X is dispensed with and the tube E extends through the end of the apparatus opposite to that at which the gases are admitted. Specification 268,772 is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a) the tubes B, E or other heat-exchange devices are filled wholly or partly with catalyst. In one such modification, Fig. 3, the heat-exchange devices comprise concentric tubes C, C<1> provided at one end with a part K filled with catalyst. The reagents enter through a tube A and pass through the inner tubes C, the catalyst in the parts K, and the outer tubes C<1> to the main body of catalyst, the reaction products leaving by the annular passage D. The tube A may be replaced by a number of tubes and the concentric tubes C, C<1> by U- tubes having the bend filled with catalyst. This subject-matter does not appear in the Specification as accepted.
Patent GB-390375-A (GB)
Title: Anal suppository
IPC: A61J3/08
Filed: 1932-07-07
Abstract: 390,375. Suppositories. YAMAGUCHI, M., 840, Sendagaya, Sendagayamachi, Toyotamagun, Tokyofu, Japan. July 7, 1932, No. 19248. Convention date, July 31, 1931. [Class 81 (ii).] An anal suppository of fusible medicated material comprises a conical portion A and a bulbous portion B in the form of a flattened oblate spheroid. A stalk 2 of celluloid &c. by which the suppository is held during application and a binding cord 3 of silk thread &c. are embedded in the material.
Patent GB-1455007-A (GB)
Title: Stitch markers
IPC: A43D8/26
Filed: 1976-05-11
Abstract: 1455007 Stitch marking ART PATTERN & KNIFE CO Ltd 21 May 1974 [25 May 1973] 19251/76 Divided out of 1455006 Heading D1G The description is substantially the same as that of Specification 1455006, abut the claims are directed primarily to a stich marker comprising a sheet of support material for marking means in the form of a line marking strip having a uniform width, the sheet of material having a slot or slots formed through it to receive the line marking strip which is fixed therein so that one edge of the strip protrudes from an operative face of the support material and the opposite edge of the strip lies flush or substantially flush with the reverse face of ,the support material. The back of the marker may carry pins and a bolster receiving the marker may have corresponding holes and locking means.
Patent GB-984830-A (GB)
Title: Data storage system
IPC: G11C7/02
Filed: 1962-05-18
Abstract: 984,830. Circuits employing bi-stable magnetic elements. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 18, 1962 [June 8, 1961], No. 19252/62. Heading H3B. Poise is cancelled out in the sense windings of a storage matrix by winding different segments of a row in different directions, means being provided for inverting the information applied to certain cores either before feeding in or after reading so that polarity defined outputs may be used. In the " two core per bit " array of Fig. la information is fed in word form along input lines from data register 29 to a series of " AND " gates 33-10 which also receive inputs from a clock 26 and from the address register 18. This latter input determines whether information is inverted or not before being fed to the bipolar drivers 14 and 15. The sense windings are coupled to alternate pairs of cores in opposition, thus cancelling the noise produced in successive pairs of a row. Information read out may be rewritten as the output is connected to the input if the amplifiers are enabled by the strobe 47. A circuit which inverts the information at the output stage and an alternative arrangement of the tow drivers is also described (Figs. 5 and 6, not shown).
Patent GB-477999-A (GB)
Title: Improvements in or relating to plate heat-exchange apparatus
IPC: F28F3/08
Filed: 1936-07-13
Abstract: 477,999. Plate heat - exchangers. PRESTAGE, E. July 13, 1936, No. 19324. [Class 64 (iii)] A plate heat-exchanger having fluid spaces of reduced cross-section towards their ends is formed of peripherally-ribbed thick plates 10 having fluid ports 13, 14 and separated by thin plates 21, Fig. 4, formed with longitudinal corrugations 25, 26, Fig. 5, and fluid ports 22, 23. The thick plates are provided with gaskets 12, 16, and the plates are assembled as shown in Fig. 6. Specification 472,695 is referred to.
Patent GB-294643-A (GB)
Title: Machine for smoothing and resmoothing ingot moulds and other hollow bodies
IPC: B22D7/00
Filed: 1928-07-04
Abstract: 294,643. Soc. Anon. d'Ougree-Marihaye. July 29, 1927, [Convention date]. Hollow-ware.-The inside of an ingot mould 26 is cut out to required shape, e.g. slightly conical, by a screw reciprocated to holder 16 with 2 cutters which takes a complete cut longitudinally off the mould, and is then re-set for the next cut back by cams 33 which on being rotated at the end of a cut, move the whole tool holding body out or in to cut the required depth and taper to form the cone or other shape. When the carriage 16 has made one traverse it actuates a ratchet pawl 45 whereby the shaft 40 is turned one step, the gear 39 on which turns the teeth 24 of the work holding cage one step and also turns cam-shaft 31 one step to move the tool carriage in or out and so copying the shape of the cam. The tool carriage 15, with its tool driving electric motor &c. mounted on carriages 7, 11 movable in ball bearing slides, is urged against the cam surfaces by weights and chains. To remove the work the tool motor 19 is stopped, the weight chains are unhooked from the carriage 11, the carriages 8, 9 are unlocked from their guides and coupled to the screw 12 so that the motor 13 can draw them to the right so that the carriage 11 is withdrawn, from 15, which then overhangs but is balanced by weight 51. The ingot mould after releasing the pinching screws 25 can then be withdrawn from its cage 25, e.g. by a travelling crane. The cams 33 may be replaced by linkages. Specification 214,625 [Class 83 (iii), Metals, Cutting], is referred to.
Patent GB-771124-A (GB)
Title: Bladed rotor construction for compressors, turbines and like fluid flow machines
Inventor: PERRY SYDNEY WILLIAM HENRY
IPC: F01D5/06
Filed: 1954-07-01
Abstract: 771,124. Turbine and compressor bladed rotors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. June 30, 1955 [July 1, 1954]. No. 19356/54. Class 110 (3). A turbine or compressor rotor comprises at least two coaxial, axially-spaced discs, a row of rotor blades having their roots lying between and engaging with the peripheries of the discs, and an annular member extending axially radially within the blade roots and being rigidly connected at its ends to the adjacent discs. A driving ring is secured to one of the discs radially inwardly of the blade roots and has parts engaging with the blade roots for transmitting drive from the disc to the blades. The axial-flow compressor rotor shown comprises eight discs 1 ... 8 and seven blade stages 11 ... 17. The first disc 1 is formed integrally with an axially-extending flange 1a having a radially-outwardly extending flange 1b at its end, the flange 1b being secured to the adjacent disc 2 by means of bolts 10. The blades 11 are disposed between the peripheries of the discs 1 and 2, and a driving ring in the form of an angle section flange 20 of sheet metal is secured by the bolts 10 to the rotor disc 2 and has teeth 20c in engagement with the blade roots. The blade rows 12 and 13 are mounted between the discs 2, 3 and 3, 4 respectively in a similar manner. The flanges 4a, 5a, 6a and 7a on the discs 4, 5, 6 and 7 are, however, provided with radially inwardly directed flanges 4b, 5b, 6b, 7b which are connected to the adjacent discs 5, 6, 7, 8 respectively. The roots of the rotor blades 14, 15, 16, 17 are engaged by driving dogs formed at the peripheries of the discs 5, 6, 7, 8.
Patent GB-376494-A (GB)
Title: Improvements in or relating to trolley bases for electric vehicles
IPC: B60L5/16
Filed: 1931-07-06
Abstract: 376,494. Trolley poles for electric vehicles. BRECKNELL, WILLIS, & CO., Ltd., 59, Victoria Street, Bristol, and WILLIS, A. M., Sunnyhill House, Shirehampton, near Bristol. July 6, 1931, No. 19455. [Class 104 (iii).] In a swivelling trolley pole for electric vehicles, the lever tube 1 of the pole is made longer than usual to reduce weight, and two parallel tension springs 4 are connected to a crosshead 3 near the end of the tube, and to a crosshead 5 having a pivotal point 6 connected to a saddle 7 pivoted to the base 8<1>. The springs 4 are adjusted by means of threaded rods 12 passing through the crosshead 5. Buffer springs 13 are arranged between the crosshead 5 and collars 14 on the rods 12. The fork 7 has roller bearings 9 on the body 8<1>, the tube 1 has roller bearings 11, and the springs 4 swing about roller bearings 10 in the crosshead 3.
Patent GB-364076-A (GB)
Title: Improvements in or relating to driving mechanism for fuel pumps
IPC: F02M59/00
Filed: 1930-06-26
Abstract: 364,076. Actuating pumps. CLERGET, P., 38, Rue Boileau, Paris. June 26, 1930, No. 19465. Convention date, July 5, 1929. Void [Published under Sect. 91 of the Acts]. [Class 102 (i).] In an internal-combustion engine a number of levers 11 for operating f u e l pumps are oscillated from a single reciprocating member 3 by means of links 9, one end of each link 9 being adjustable in a curved slot 5, in the member 3 or in the lever 11, in order to vary the stroke. The link 9 is screwed into a block 12 pivoted on a pin 6, which is clamped in the slot 5. The length of the link 9 can be adjusted by turning it in the block 12. Alternatively, the member 3 may be curved and oscillate.
Patent GB-903926-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J41/00
Filed: 1961-05-30
Abstract: The invention comprises substituted progesterone 3,20-dioximes of the formula: <FORM:0903926/IV (b)/1> wherein R is <FORM:0903926/IV (b)/2> when X is hydrogen, fluorine, chlorine, bromine or iodine, or R is <FORM:0903926/IV (b)/3> or <FORM:0903926/IV (b)/4> when X is hydrogen and Ac is the acyl radical of a hydrocarbon mono-or dicarboxylic acid having from 2-12 carbon atoms or a carbamic acid having the formula <FORM:0903926/IV (b)/5> wherein R1 is hydrogen or an alkyl radical having 1-6 carbon atoms or phenyl, therapeutic compositions thereof, and a process for the preparation of said compounds by reacting the corresponding 3,20-dione with a hydroxylamine mineral acid salt in the presence of a base e.g. pyridine, collidine, or sodium or potassium hydroxides.  The compositions are used as central nervous system depressants and may take the forms of tablets, powders, pills, capsules, solutions, emulsions, serums or elixirs.
Patent GB-279952-A (GB)
Title: Improvements in radial flow turbines
IPC: F01D5/04
Filed: 1926-08-06
Abstract: 279,952. Fairweather, H. G. C., (Allmõnna Svenska Elektriska Aktiebolaget). Aug. 6, 1926. Radial-flow (bladed) type. - In a radial-flow turbine wherein the outermost blade section 7 has a plurality of sets of passages 10, 9, 10 receiving steam or gas from a single set of passages 8 in the blade section 6, the intermediate passage 17 is bounded by curved annular recesses 15, 16 formed in the innermost strengthening-ring of the section 7 and in the turbine disc. the arrangement providing an unrestricted passage of substantially constant cross-sectional area between the outer end of passage 8 and each of the passages 10. The strengthening-ring in which the recess 15 is formed may be radially thinner at the inner end, Fig. 3. The supply channel 13 has an inclined or curved wall 14 at its inner end to direct the steam or. gas towards the innermost blade section 5.