baber/WOPTO huggingface dataset:
Patent GB-348834-A (GB)
Title: An improved process for producing lubricants
Filed: 1930-04-11
Abstract: In preparing lubricating oils by hydrogenation of impure heavy oils such as a heavy asphaltic base oil, the non-crystalline gummy, resinous or asphaltic impurities are first removed, and the purified oil is treated with a gas rich in free hydrogen at high pressure, e.g. over 100 atmospheres, at a temperature above 700 DEG  F. at which decomposition is relatively slow e.g. below 800 DEG  F. With a heavy cylinder oil, the production of light oil boiling below 400 DEG F. is less than 15 per cent and may be as low as 5 per cent.  A catalyst may be used, preferably one immune from sulphur poisoning, e.g. molybdenum or chromium oxide or the mixed oxides with or without oxides of heavy polyvalent metals.  The hydrogen consumed is about 300 cub. ft. per barrel, but the gas is used in considerable excess, e.g. over 3000 cub. ft. per barrel.  The product is brought to the desired viscosity by distillation or by steam reduction.  The preliminary purification of the heavy oil may be effected by treatment with sulphuric acid; the impurities may be precipitated by liquid sulphur dioxide, aqueous phenol, amyl or other alcohols, aldehydes, ketones, or mixtures of these with one another or with naphtha, or by other solvents, the solvent being removed before hydrogenation; or the oil may be distilled in vacuo with or without subsequent treatment with sulphuric acid or solvents.
Patent GB-219266-A (GB)
Title: Improvements relating to cylinder liners for internal-combustion engines
IPC: F02F1/16
Filed: 1924-05-10
Abstract: 219,266. Palmers Shipbuilding & Iron Co., Ltd., and Kemp, D. May 10, 1924. Cylinders, construction of.-Scraper rings g, which are fitted to an extension a of the cylinder liner d, are fixed by a removable junk ring e which is retained by stud bolts screwed into the extension a. When the piston is to be fitted a bevelled guide ring is inserted in place of the junk ring, scraper rings the spacer ring j, the bevel allowing the piston rings to enter freely. The rings have threaded holes to facilitate removal and are slotted to prevent interference with the lubricating pipe n and at this point the junk-ring has a strengthening projection p.
Patent GB-841296-A (GB)
Title: Alloys
Inventor: FARTHING THOMAS WILLIAM
IPC: C22C27/02
Filed: 1957-04-10
Abstract: Oxidation-resistant niobium alloys consist of niobium and unavoidable impurities and one of the elements Ti 10-40%, V 2-10%, Cr 2-20%, Fe 2-5% or 15-20%, Co 2-5% or 15-20%, Ni 2-3% or 10-30%, Zr 7-12%, Mo 1-30%, W 10-25%, Al 3-30%, Sn 2-15%, Ta 7-15%.  The alloy may, alternatively be a ternary alloy containing Ta up to 3% and one of the other elements listed above with the balance Nb and impurities. The Provisional Specifications describe also alloy, containing V up to 40, Cr up to 50, Co up to 40, Ni up to 40 or Zr up to 40.
Patent GB-1508361-A (GB)
Title: Spin-dyeing of acid-modified acrylonitrile homopolymers and copolymers
IPC: D01F6/18
Filed: 1975-03-20
Abstract: 1508361 Spin-dyeing acrylonitrile polymers HOECHST AG 20 March 1975 [20 March 1974] 11779/75 Addition to 1496790 Heading C3K Acid-modified acrylonitrile homopolymers or copolymers are spun-dyed using a spinning solution containing a water-insoluble or sparingly water-soluble salts of a basic dyestuff that contains at least 2 arylamino groups. The dyestuff may be of the triarylmethane, indolyldiarylmethane, xanthene, azine or oxazine type.
Patent GB-890790-A (GB)
Title: Improvements in or relating to regeneration of moisture exchangers for gaseous media
IPC: B01D53/26
Filed: 1958-04-14
Abstract: 890,790. Drying air. LIZENZIA A.G. April 14, 1958 [April 12, 1957], No. 11784/58. Class 34(1) Air drying apparatus comprises a body 12, Fig. 1, rotatable in a casing 10 and housing a hygroscopic mass having air passages 18, 16 therethrough. Spaces below and above the body are partitioned into zone pairs 19, 32 and 19, 34 and 21, 40 such that, in operation, air to be dried is passed through the mass along a circuit 36 by a fan 30 whilst a gaseous regenerating medium, e.g. steam-enriched air, is forced by a fan 44 along a closed circuit 42, 48 which incorporates a heater 46. An auxiliary current of air from the fan 30 is passed through the mass via the zones 19, 32 along a line 38. The mass rotates in the direction 54 and that portion between the zones 21, 40 is heated by the circuit 42, 48 the moisture being removed by the air current 38. In a further embodiment the moisture is removed from the hot mass by an auxiliary current tapped from the dried air in the zone 32 and passed through the mass along a line 72, Fig. 3, which connects with the closed circuit 42, 48 incorporating, in this instance, a bleed-off line 83. The medium in the circuit 42, 48 also removes some of the moisture from the mass. In another embodiment the auxiliary moisture-removing air current is fan-induced from the atmosphere and passed along a path which effects two successive passages through the hot mass. In a further apparatus a circulating air stream 38, 108, Fig. 7, transfers heat from the dried to the wet side of the rotating mass the moisture being removed by the circuit 42, 48. A bleed-off line 83 is provided and a small amount of air may be introduced into the circuit 42, 48 through a pipe 110. The hygroscopic mass comprises asbestos passages impregnated with lithium bromide or chloride. Means are provided to maintain the moisture level of the circuit 42, 48 both before and after passage through the mass, higher than the moisture level of the circuit 36. Means are also provided to maintain the pressure of the circuit 36 higher than that of the circuit 42, 48. The casing 10 may be rotatable while the mass remains stationary.
Patent GB-1596343-A (GB)
Title: Microbicidal anilides
IPC: C07C327/22
Filed: 1978-03-23
Abstract: Microbicides are described which contain, as active ingredient, at least one novel compound of the formula I <IMAGE> where the substituents in formula I have the meanings defined in Claim 1. There is also described a process for the preparation of the novel active substances, which is characterised in that a compound of the formula II <IMAGE> is reacted with a carboxylic acid of the formula III <IMAGE> or an acid anhydride or acid halide thereof, the substituents being as defined above. Moreover, a process is described for controlling phytopathogenic fungi and for preventing fungal attack with the aid of these novel active substances.
Patent GB-118034-A (GB)
IPC: H04M1/23
Abstract: 118,034. Wilson. H. Nov 21, 1917. Impulse-transmitters.- The member upon which the digits of an impulsetransmitter are painted is resiliently mounted immediately beneath, or arranged to project through, the finger-plate. Thedigits may be painted on several members independently mounted. In the arrangement shown in Fig. 2, the number plate 4 is mounted in a rotatable casing 3 and is held against the finger-plate 1 by springs. In the modification shown in Figs. 5 and 6, the digits are painted on a star-shaped resilient member 10. In the further modification shown in Fig. 7, each digit plate is mounted on a separate spring 12.
Patent GB-1108413-A (GB)
Title: Improvements in electrical limiters and related devices
Inventor: MANSON WILLIAM ISBISTER
IPC: H03G7/00
Filed: 1966-03-17
Abstract: 1,108,413. Automatic gain control. BRITISH BROADCASTING CORPORATION. 27 Feb., 1967 [17 March, 1966], No. 11817/66. Heading H3Q and H4R. An audio frequency compressor or limiter, i.e. arrangement limiting the maximum amplitude of a signal without introducing appreciable waveform distortion, comprises a control rectifier system 10 which is sufficiently rapid in action to register the crest of the shortest pulse expected in the input signal. Responsive to the rectifier system is means, i.e. shaping network 12, providing a control signal having a rate of change substantially slower than that of the shortest signal pulse, and this controls a variable gain amplifier 14, in the signal path which is fed from the signal input via a delay network 16. The arrangement is such as to prevent overshoot of short pulses beyond the limiting level, while at the same time producing a gain reduction which is sufficiently gradual as not to produce audible modulation distortion. In a modification (Fig. 3, not shown), there is interposed between the signal input and the control rectifier system a further variable gain amplifier, the gain of which is controlled directly from the rectifier system.
Patent GB-722735-A (GB)
Title: Improvements in and relating to ashtrays
IPC: A24F19/00
Filed: 1952-05-09
Abstract: 722,735. Match stands. VINOKOUR, I. May 9, 1952 [Sept. 13, 1951], No. 11838/52, Class 18. [Also in Group VI] Match - supporting cavities 7 and a matchstriking plate 8 are provided on the rim 2 of an ash-tray (see Group VI).
Patent GB-118102-A (GB)
Title: Improved Induction Electric Motor with Variable Number of Poles.
IPC: H02K17/14
Filed: 1918-07-20
Abstract: 118,102. Akt.-Ges. Brown, Boveri, et Cie. July 21, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Alternating-current motors; coils and conducductors.-The stator is provided with a single winding or with separate windings for giving different pole-numbers. The rotor has a shortcircuited winding so constructed that for the starting pole-number the rotor currents flow through high-resistance circuits while for the other pole-number or numbers, the currents are carried by low-resistance circuits. The high- and low-resistance circuits may be separate or combined. Figs. 1 and 2 show a combined arrangement in which pairs of bars b separated by the pole-pitch of the working pole-number are joined by low resistance connexions to form a polyphase short-circuited winding, and are also joined by resistance connexions c to short-circuiting rings d to form a high-resistance winding. The connexions c may have the form of wings for cooling purposes, Fig. 2, while the short-circuiting rings d may be joined to the hub e. The connexions c may be placed transversely through the rotor slots so as to halve each of the short-circuit windings. Various proportions of rotor coil-span and stator pole-pitch are given in the Specification.
Patent GB-548135-A (GB)
Title: Improvements in or relating to the insulation of electroplating equipment
IPC: C25D17/08
Filed: 1940-07-19
Abstract: 548,135. Vinyl resin compositions ; electroplating apparatus. BAKELITE, Ltd. July 19, 1940, No. 11938. Convention date, July 28, 1939. [Class 2 (iii)] [Also in Group XXXVI] A method of insulating the supporting rack of an electroplating equipment which is to be in contact with electrolyte comprises winding the rack with an insulating tape under tension, the tape consiting of a copolymer of 50 to 95 per cent. of a vinyl halide and 50 to 5 per cent. of a vinyl ester of an aliphatic acid which contains up to six carbon atoms in the molecule. There may be incorporated in the copolymer waterinsoluble lead compounds, e.g. lead oxide or a lead salt of a high molecular weight organic acid, e.g. lead stearate or abiletate, which act as heat stabilizers, and aryl phosphates, e.g. triphenyl phosphate, phthalates, e.g. butyl, amyl or di-(butoxy-ethyl) phthalate, or a copolymer of a vinyl halide and a vinyl ester having a lower molecular weight than that of the copolymer forming the basis of the tape, which act as plasticizers. One turn of the tape may be arranged to overlap the edge of the preceding turn, and the windings may be sealed by heat, by treatment with a solution of the low molecular weight polymer in a solvent, e.g. acetone or methylethyl ketone, or, when the tape comprises a low molecular weight copolymer, by treatment with such a solvent. In an example, the tape comprises a mixture of a copolymer of 95 per cent. vinyl chloride and 5 per cent. vinyl acetate having a molecular weight of 22000 or 24000, a copolymer of 80 per cent. vinyl chloride and 20 per cent. vinyl acetate having a molecular weight of approximately 9000, tricresyl phosphate, diamyl phthalate and lead abietate. The Specification as open to inspection under Sect. 91 comprises a tape comprising a copolymer of styrene and a vinyl ester of an aliphatic acid which contains up to six carbon atoms in the molecule, e.g. vinyl acetate. This subjectmatter does not appear in the Specification as accepted.
Patent GB-669416-A (GB)
Title: Method of producing salts of penicillin
IPC: C07D499/26
Filed: 1949-05-04
Abstract: Salts of penicillin are manufactured by adding pyridine, a homologue thereof or mixed pyridine bases to a solution of penicillin in an anhydrous solvent, and, if the resulting penicillin salt does not directly precipitate, adding another organic liquid in which the salt is less soluble or insoluble. In an example, pyridine is added to a solution of penicillin in amyl acetate, and the salt formed is precipitated by adding petroleum ether.  Other solvents for penicillin specified as suitable are chloroform, alcohols (e.g. ethanol), ether and ketones (e.g. acetone).
Patent GB-868516-A (GB)
Title: An alternator voltage stabilising circuit
Inventor: ZOBAC MILAN
IPC: H02P9/32
Filed: 1959-04-10
Abstract: 868,516. Automatic voltage-control systems. TESLA, NARODNI PODNIK. April 10, 1959 No. 12192/59. Class 38 (4). The output voltage of an alternator 6 is controlled by a magnetic amplifier 5 which effects the excitation in an undisclosed manner. The amplifier 5 is controlled in accordance with the difference between alternator output voltage rectified at 4 and a constant voltage obtained from a device 3 having opposed windings supplied from separate windings on a transformer 2. The amplifier 5, rectifier 4 and the constant voltage device 3 are all energized from the output terminals of the alternator 6 by the common transformer 2. The increased loading on the transformer 2 when the magnetic amplifier 5 increases the field excitation, due to a drop in alternator voltage, causes a further drop in the voltage applied to rectifier 4 and so introduces a measure of load current compounding. The amount of compounding may be adjusted by the variable resistor 1 in series with the primary of transformer 2.
Patent GB-383959-A (GB)
Title: Improvements in or relating to casting apparatus
IPC: A63H33/30
Filed: 1931-04-24
Abstract: 383,959. Moulding clay, wax, &c. in stationary-mould machines. NEWTON, W. G., 78, Ridgewood Avenue, Hamden, New Haven, Connecticut, U.S.A. April 24, 1931, No. 12240. Convention date, May 2, 1930. [Class 87 (ii).] A metal-casting machine, used as a toy for making toy soldiers, dolls, rings, &c., is stated to be usable, for moulding clay, wax, &c., by pressure without heat. Each mould comprises stationary and moving mould-sections or dies 5, 12, the member 5 being carried by a plate 3 of the frame 1 and the member 12 being secured to a plate 10 sliding on bars 6 carried by the frame. The mould half 5 is thinner than the half 12 and may have a star-sectioned projection 42 engaging corresponding recesses 45 of the plate 3. The half 12 may have a squaresectioned projection 38 and differently-positioned recesses 40. The halves are secured to their plates by pins 41 and are relatively aligned by pins 46a, 46c. After the clot of clay or wax has been placed between the plates, the plate 10 is moved by an adjustable toggle 14, 16 of which the member 14 forms a handle 15. The toggle moves a little beyond its dead centre so that it is automatically locked. The frame member 4, to which the toggle is secured at one end, is flexible so that it can yield and thus apply pressure to the closed mould.
Patent GB-806196-A (GB)
Title: Epoxy resin composition
Inventor: TURNER JOHN HARRY WALLICE
IPC: C08G59/50
Filed: 1956-04-21
Abstract: Epoxy resins derived from phenol-formaldehyde novolak resins mixed with primary aliphatic monoamines cure at room temperatures over a period of 2-3 days and in a few hours at 100-200 DEG  C. Monoamines specified are propylamine, n-butylamine, dodecylamine and stearylamine.  A phenol novolak was prepared by refluxing 100 parts phenol, 70 parts 37 per cent formaldehyde and 0.6 parts oxalic acid until the mixture clouded and then for a further 20 minutes.  The resin was isolated by distillation under vacuum and sufficient epichlorhydrin added to give a 65 per cent solution of novolak resin; 1317 parts of the solution were mixed with 2515 parts epichlorhydrin and heated under reflux with 21 parts water and 80 parts NaOH; further amounts of NaOH being added until 368 parts had been added in all.  After refluxing and vacuum distillation chlorbenzene was added to remove the NaCl and the solvent was distilled off to recover the resin.  A 60 per cent solution of the resin in methyl ethyl ketone was mixed with (1) 7 parts of C18H31NH2 dissolved in methyl ethyl ketone and the solution thinned in benzene was used as a lacquer for stoving metal panels at 135 DEG  C.; (2) and (3) with an amine sold under the name "Armeen"; (4) with an amine derived from coconut oil.
Patent GB-1389013-A (GB)
Title: Tubular fluid heaters
IPC: F24H1/40
Filed: 1971-04-29
Abstract: 1389013 Fluid heaters; burners UNITED KINGDOM ATOMIC ENERGY AUTHORITY 3 May 1972 [29 April 1971] 12295/71 Headings F4A F4T and F4S A heat exchanger tube in which water or other fluid is heated, has on its external surface, one or more heat conductive fins heated by a flame burning on a porous wall positioned close to the fin and forming one wall of a chamber containing combustible gases. The fin may be helically, transversely or longitudinally arranged on the tube; or, if the tube comprises a flat coil, said fin may comprise a flat plate within which the tube coil is embedded, the burner flame being concentrated on one or both sides of the plate. Each fin may be associated with more than one tube. The burners may comprise annular chambers (3, Fig. 1) from which flames are concentrated on to the fins each comprising an annular disc (2) attached to a water tube (1). In another form (Fig. 2) the burner may comprise a chamber (17) extending helically around a water tube (14), and having a porous wall (15) on which combustible gases from said chamber (17) are ignited. The burning gases radiate heat to a helical heat collecting fin (16) which may be porous and is interwound helically on the tube with the chamber-defining members (15, 18). In Fig. 3 a passage for burner fuel is defined around a water tube 19 by helically wound members 24, 25 and an encircling sleeve 21. The member 24 is porous and flames thereon are concentrated on to a helical fin 20 attached to the tube 19. The combustion gases pass to a chimney 26 via apertures 27 in the sleeve 21. The exhaust combustion gases may be directed to a second stage heat exchanger arranged generally as described in Specification 1,376,303.
Patent GB-1254696-A (GB)
Title: Seed or like drill
Inventor: NOTT WILLIAM HENRY MENCE
IPC: A01C7/08
Filed: 1968-03-14
Abstract: 1,254,696. Seed drill. W. H. M. NOTT. 12 June, 1969 [14 March, 1968], No. 12316/68. Heading A1D. A seed or like drill has coulters 6 individually mounted from the drill by pivoted tubular arms 7 which act as conduits for conducting seed or other material to the coulters and which are provided at their lower parts with tubular guides 12 for directing further material to the ground. Transverse hoppers 4, 5 for reed and fertilizer respectively, may be mounted on the drill, the trailing arms 7 being pivoted from a transverse shaft 11 which may be rotated to adjust torsion springs (10) fig. 1 (not shown) which urge the coulters 6 towards the ground. The coulters, which may be shoe or disc coulters, may be mounted in staggered relationship. Hand-wheel driven metering devices (14) (15) fig. 2 (not shown) at the bottom of the seed and fertilizer hoppers respectively, feed material to flexible outlet tubes 16, 19 respectively which may be of transparent plastics material and slidably enter the open upper ends 7c of tubular arms 7 and tubular guides 12. The arms 9 may be raised by chains attached to a transverse bar 20 lifted by a hydraulic ram 23, this action also causing a metering device gear wheel 30 to be disengaged from the land wheel driving gear 26.
Patent GB-430851-A (GB)
Title: Improvements in or relating to flexible joints or bearings
IPC: F16F1/38
Filed: 1934-04-24
Abstract: 430,851. Flexible-unjointed hinges. ANDRE (SILENTBLOC), Ltd., and JELLEY, S. W., Victoria Gardens, Ladbroke Road, Notting Hill Gate, London. April 24, 1934, No. 12322. [Class 65 (ii)] In a joint of the kind comprising a rubber bushing C radially compressed between inner and outer concentric members A, B so as to adhere to these members, the rubber bushing has end portions C', of smaller thickness than the intermediate portion, compressed between the inner member B and collars D having no direct connection with the socket A. The bushing may have additional annular extensions which are radially compressed between the outer member A and further collars similar to those shown but inverted in section. In a modification, the collars D may have flanges bearing on the ends of the inner member B. In a further modification, the extensions of the rubber bushing C project radially inwardly, and are compressed against the ends of the main portion of the member B by collars rigidly mounted on reduced end portions of the latter member.
Patent GB-180990-A (GB)
Title: Improvements in or relating to electro mechanical control systems
IPC: G05D3/16
Filed: 1922-05-02
Abstract: 180,990. Soc des Etablissements Gaumont. May 28, 1921, [Convention date]. Sights and methods of sighting. -Relates to hunting control-gear of the k i n d described in Specification 186,420 [Class 38 (ii), Electric currents, Con verting &c.] for cutting out an elec tric motor after a definite travel and bringing a driven load to rest in a definite position. Figs. 1 and 2 show the invention in its simplest form as applied to training gear for ordnance. A gun turret 1 is coupled to a constantly-running motor 2 through changel-speed gear 3 propelled by an auxiliary motor 5. The motor 5 is in circuit with a hunting switch consisting essentially of a brush 8, caused to revolve synchronously with the tur. ret, and a disc 9, revolving synchronously with a remote control instrument such as a sighting telescope. On the disc are two semi-circular contact-rings 10, 11 which reverse the motor connections when the brush passes from one to the other, and a dead contact 13 which cuts the motor out. The inertia of the turret carries the brush backwards and forwards in successive swings of diminishing amplitude, until it comes to rest on the dead contact. A modification of the invention is provided with a dead-beat system of control, in which the brush 8 is advanced relatively to the turret through interposed differential gear. The advance is effected automatically by an auxiliary electric motor supplied from a generator mechanically coupled to or otherwise driven from the travelling turret, and a balancing resistance arrangement causes the amount of lead so given to depend upon the speed of travel of the turret, the resistance being preferably calculated so that the lead varies approximately as the square of the speed. Increased delicacy is given by the use of three hunting switches revolving at different rates and in parallel electric connection. The invention may be applied to the simultaneous training of guns and search-lights.
Patent GB-149090-A (GB)
Title: A joiners' clamp
IPC: B25B5/16
Filed: 1919-05-16
Abstract: 149,090. Halin, A. May 16, 1919. Clamps. - In a joiner's clamp of the kind in which a jaw, adjustable along a bar, is formed in two pivotally connected parts, one part surrounding the bar and the other adapted, under the pressure of the work to engage and bind against the bar to lock the jaw thereto, the parts g, f of the jaw are pivotally connected by the engagement of a shaped lug h on the part f with a corresponding recess in the part g.