baber/WOPTO huggingface dataset:
Patent GB-732996-A (GB)
Title: Lubricant compositions
IPC: C10M169/00
Filed: 1952-11-25
Abstract: A lubricating composition comprises a hydrocarbon oil containing an ester in an amount sufficient substantially to increase the corrosivity of said oil, together with a minor portion each sufficient to reduce said corrosivity substantially, of an organic sulphide inhibitor and of a vicinal dihydroxyanthraquinone, a vicinal polyhydroxybenzene, or a benzenoidal amine having an amino or an oxy radical in the ortho position.  The base oil may be a Pennsylvania oil, a highly or moderately refined oil, a lubricating oil from Mid-Contenent stocks, a synthetic hydrocarbon oil, such as a hydrogenated polymer of olefin hydrocarbons, or a synthetic non-hydrocarbon oil, such as a condensation product of a chlorinated alkyl hydrocarbon with an aryl compound, or a polyether synthetic oil, or a synthetic oil of the dicarboxylic acid ester type, e.g. dibutyl adipate, di-2-ethylhexyl sebacate.  The ester may be a partial or complete ester of a mono- or poly-hydric non-benzenoid alcohol with a mono-or poly-basic acid.  The alcohol may be ethylene glycol, octadecane-1,12-diol, glycerol, erythritol, pentaerythritol, pentitol, tetramethylol cyclohexanol, sorbitol, mannitol, inositol, diethylene glycol, triglycerol, dipentaerythritol, sorbitan, mannitan, or saccharides, such as glucose, fructose, and sucrose. The acid may be lauric, oleic, palmitic, stearic, maleic, an alkenyl succinic acid, sebacic, benzoic, phthalic, phenylstearic, or alkylbenzoic.  The organic sulphide inhibitor may be dicetyl sulphide, dihexadecyl tetrasulphide, the reaction product of polychlorinated wax and sodium polysulphide, dibenzyl sulphide, diphenyl disulphide, dixylyl disulphide, dinaphthyl disulphide, sulphurized ethylenepropylene copolymer, sulphurized polybutene, a sulphurized terpene, the reaction product of a terpene and P2S5, a sulphurized fatty acid or ester thereof such as the reaction product of sulphur or a phosphorus sulphide with a fatty acid or ester thereof, e.g. sperm oil or lauryl oleate, cetyl mercaptan, stearyl mercaptan, diamyl phenol monosulphide or disulphide.  The vicinal dihydroxyanthraquinone may be alizarin, hystazarin, alizarin RG, alizarin SG, anthragallol, quinalizarin, or alizarin garnet.  The vicinal polyhydroxybenzene may be catechol, pyrogallol, 1,2,4-benzenetriol, or apionol.  The benzenoidal amine may be ortho-aminophenol, 3,4-diaminotoluene orthoaminoaniline, ortho-anisidine, ortho-phenetidine, 3-amino-4-hydroxytoluene, 4-amino-3-hydroxytoluene, 3-ortho-tolylene-diamine, 2,4-diamine-phenol, 1-amino-2-naphthol, 2-amino-1-naphthol, 2,3-diamino-naphthane.  The organic sulphide inhibitor may be between 0.05 and 5 per cent, preferably 0.1 to 3.0 per cent, by weight of the finished oil.  The aromatic additive may be between 0.005 and 10 per cent, preferably 0.03 to 1.5 per cent.
Patent GB-1344713-A (GB)
Title: Manufacture of isoprene
IPC: C07C1/24
Filed: 1971-06-25
Abstract: 1344713 Isoprene BADISCHE ANILIN- & SODA-FABRIK AG 25 June 1971 [27 June 1970 16 Dec 1970] 29833/71 Heading C5E Isoprene is made by dehydrating 3-methyl-3- buton-1-ol with acids (or substances which form acids in aqueous medium) in the presence of water, salts and, optionally, diluents, the anion of the acid or salt or both being a halide. Preferably an aqueous solution of an acid having a dissociation constant in water of at least 1 x 10<SP>-6</SP> and a water soluble salt of such an acid is employed the acid being present in amount 0À01-40% by wt. and the salt in amount of at least 3 wt. per cent. Suitable acids are HCl, HBr, HI, HF, H 2 SO 4 , H 3 PO 4 , formic acetic, p - toluenesulphonic, trichloroacetic, oxalic maleic or ion exchange resins containing sulphonic acid groups. Substances which form acids in aqueous medium are AlCl 3 , BF 3 , TiCl 4  and acyl chlorides. The preferred salts are NaCl, CaCl 2 , NH 4 Cl and NaBr. The dehydration may be effected at up to 140‹ C.
Patent GB-1206336-A (GB)
Title: Method of cleaning the gas-swept heating surfaces in heat exchangers
Inventor: ACKERFELDT KRISTER ALLAN
IPC: F28G1/12
Filed: 1968-06-21
Abstract: 1,206,336. Cleaning heat exchangers. B. G. A. BERG, and J. L. R. SODERSTROM. 21 June, 1968 [22 June, 1967], No. 29840/68. Heading F2N. A method of cleaning gas-swept heating surfaces in a heat exchanger by permitting impact bodies such as pellets to fall on to the heating surfaces is characterized in that the impact bodies are made of aluminium or, of alloys thereof. The pellets, which may not be spherical, preferably range in size between 5 and 10 mm. The softer and lighter metal does not cause heavy wear upon the heat exchangers or, upon the mechanism for conveying the pellets, and the pellets are not subject to rust. The pellets, after being used for a time, impart an aluminium coating to the heat exchanger tubes, preferably, however, the tubes of the heat exchanger are provided, during manufacture, with an aluminium coating. As shown, the gases of a water tube boiler flow downwards, in a gas pass, over three heat exchanger sections 10, 11 and 12 the tubes of each of which are coated with aluminium or, an alloy thereof. The pellets 19 are fed by a screw conveyer 20 to a conduit 17 wherein a fan 16 blows them up the conduit 17 to a hopper 18 and down on to a rotating table 21 to be spread to the inlets of a number of pipes 22 which direct the pellets to fall on to deflecting members 23.
Patent GB-670694-A (GB)
Title: Improvements in or relating to electrically energized luminous gas devices
Inventor: SPRATT CLAUDE HAMILTON
IPC: H01J65/04
Filed: 1947-11-11
Abstract: 670,694. Electric discharge lamps. CALLOW, C. P., and SPRATT, C. H. Dec. 10, 1948 [Nov. 11, 1947], No. 29973/47. Class 39 (i). An electrically energized luminous gas device of the kind comprising a gas-filled translucent envelope or envelopes and means for electrically energizing the contents has the latter formed of a directional array for radiating very highfrequency radio energy and the gas-filled envelope or envelopes disposed remotely from the directional array in the radiation field thereof. In the construction shown in Figs. 1 and 2 the Yagi type directional array comprising a radiator 10 energized from a very highfrequency oscillator 11, a reflector 12 and directors 13 is used for energizing a sign or device comprising a number of gas-filled envelopes 14 formed into the shape of letters and carried on a support 15. The letters may be interchangeable and may be formed from translucent tubes containing neon or may comprise tubes coated with a fluorescent material. A plurality of directional arrays may be arranged so as to direct radio frequency energy towards the same envelope or envelopes. Specification 518,466 is referred to.
Patent GB-445892-A (GB)
Title: Process for the manufacture of dyestuffs of the anthracene series
Filed: 1934-10-19
Abstract: 9.10-Leuco sulphuric acid esters of b -aminoanthraquinones containing a free a -position are oxidized to the corresponding azines electrolytically in an alkaline medium, an oxidizing agent being added in a catalytically small amount insufficient to effect complete oxidation directly.  Suitable oxidizing agents are lead dioxide, sodium hypochlorite, persulphates, or potassium ferricyanide.  The provision of a diaphragm such as a porous pot, is preferable.  In examples: (1) the leuco sulphuric acid ester of b -aminoanthraquinone in aqueous alkaline solution is placed in a vessel of non-conducting material lined with lead foil superficially coated with lead peroxide.  A porous pot containing dilute caustic soda and a copper sheet as cathode, is placed in the solution and a current of 3 amps. at 4--6 volts is passed through; the leuco sulphuric ester of 1.2.2<1>.1<1>-anthraquinone azine is formed; (2) the leuco sulphuric ester of 3 - chloro - 2 - aminoanthraquinone with excess of alkali metal hydroxide in solution, is placed in an insulated iron vessel provided with an iron stirrer to which a sliding contact is applied. A current is passed through the solution heated to about 70--80 DEG C., the stirrer and the vessel serving as electrodes, and small amounts of potassium ferricyanide are added during the oxidation. Specifications 272,924, [Class 2 (iii)], and 416,939 are referred to.
Patent GB-754630-A (GB)
Title: Improvements in or relating to colour television receivers comprising at least two picture tubes and suitable also for the reproduction of black-and-white television signals
IPC: H04N9/18
Filed: 1954-10-19
Abstract: 754,630. Television. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Oct. 19, 1954 [Oct. 20. 1953; Feb. 9, 1954], No. 30051/54. Drawings to Specification. Class 40 (3). A " compatible " colour television receiver employs at least two picture reproducing tubes, the screen of one of which is provided with a white luminescing phosphor and in front of which is arranged a removable colour filter which passes the primary colour not supplied by the other tube(s), means being provided for removing this filter from the optical path and for rendering inoperative the other tube(s) for the reception of black and white television signals. If the removal of the filter disturbs the optical path it may be restored to a desired direction by the insertion of further (non-colour selective) optical devices. For colour reproduction the partial images may be combined by colour or non-colour selective means and the function of the colour filter in front of the white phosphor tube may be performed by such means when colour selective.
Patent GB-1397987-A (GB)
Title: Document scanner
IPC: G06V10/12
Filed: 1972-06-27
Abstract: 1397987 Copying by scanning BALL COMPUTER PRODUCTS Inc 27 June 1972 [28 June 1971] 30152/72 Heading H4F A facsimile transmitter using a photodetector 70 to view a document at 12 includes a movable mirror 20 to provide frame scanning of the document. A second mirror 22 having two mirror surfaces to produce 180 degrees deflection of light incident on it from mirror 20 is moved at half the speed of mirror 20 so as to equalize the lengths of the optical paths from points on successive lines of the document to the photo detector 70. To produce line scanning photodetector 70 includes a single photodetector 70b co-operating with an oscillating mirror 64. Movement of mirrors 20, 22 is controlled by motor 60 receiving signals from a photodetector 74 viewing a graduated bar 72 to determine the length of each step between scanning lines. Bar 72 is rotatable and has different graduations on different faces to allow for different line spacings of the scanner. A similar bar 78 is viewed by a photodetector 70a to produce signals indicative of the position along a line viewed by photodetector 70b at any instant. Signals indicative of the start and finish of each line scan are produced by two photodetectors in a yoke 98 sensing the extremes of movement of an arm 96 attached to mirror 64.
Patent GB-779908-A (GB)
Title: Substituted pyrimidines
IPC: C07D239/48
Filed: 1954-10-20
Abstract: The invention comprises compounds of the general formula <FORM:0779908/IV(b)/1> wherein one X is 2-naphthyl, 2-fluorenyl or 5-pyrenyl, the Y attached to the same nitrogen atom is -CH2-SO3H and the other X and Y are hydrogen, and their preparation by heating 2-aminonaphthalene, 2-aminofluorene or 5-aminopyrene at above 100 DEG C. with a 2-amino-4-methyl-6-halo-pyrimidine or a 2-halo-4-methyl-6-amino-pyrimidine, and then reacting the compound so formed at elevated temperature with formaldehyde and sulphur dioxide. In examples: (1) 2 - amino - 4 - methyl - 6 - chloropyrimidine and b -naphthylamine give 2-amino-4 - methyl - 6 - (b  - naphthylamino) - pyrimidine (the hydrochloride of which is also described) and this with formaldehyde and sulphur dioxide gives 2 - amino - 4 - methyl - 6 - (b  - naphthyl - methylenesulphonato - amino) - pyrimidine; (2) 2 - chloro - 4 - methyl - 6 - amino - pyrimidine and b -naphthylamine give 2-(b -naphthylamino)-4 - methyl - 6 - amino - pyrimidine (hydrochloride described) which is then converted to the N - methylenesulphonate; (3) 2 - amino - 4 - methyl - 6 - (21 - fluorenylamino) - pyrimidine is prepared as in (1) and converted to its methylene - sulphonate; (4) 2 - (21 - fluorenylamino)-4 - methyl - 6 - amino - pyrimidine is prepared as in (2) and converted to its methylenesulphonate; (5) 2 - amino - 4 - methyl - 6 -(51 - pyrenylamino)-pyrimidine is prepared as in (1) and converted into its methylenesulphonate; (6) 2-(51-pyrenylamino) - 4 - methyl - 6 - amino - pyrimidine is prepared as in (2) and converted into its methylene sulphonate.ALSO:A therapeutic composition comprises a compound of the formula <FORM:0779908/VI/1> (wherein one X is 2 - naphthyl, 2 - fluorenyl or 5 - pyrenyl, the Y attached to the same N atom is - CH2 - SO3H and the other X and Y are hydrogen) dissolved in water in conjunction with a suitable dissolving agent, e.g. sodium salicylate or benzoate. p
Patent GB-897953-A (GB)
Title: Photographic camera
Inventor: BOHM SIEGFRIED
IPC: G03B7/00
Filed: 1960-09-02
Abstract: 897,953. Photographic cameras. KAMERAUND KINOWERKE DRESDEN. VEB. Sept. 2, 1960, No. 30323/60. Class 98(1). [Also in Group XL(b)] In a photographic camera having adjusting means for the time of exposure and focus, the adjusting means for time of exposure and focus are coupled together and are adjustable in accordance with a subject scale by means of a common adjusting device. As shown (Fig. 1), a focusing ring 12, which is rotatably mounted on a fixed objective guide 5 and which effects focusing by means of a cam slot 11 engaged by a pin 7 in a non-rotatable but axially movable objective tube 8, and an adjusting ring 27, which controls in known manner the exposure time provided by a shutter mechanism 15, are coupled together by means of a ring 24 having projecting arms 25 and 26 and are adjustable through a common adjusting member 29 coupled to the ring 24 by means of a connecting pin 28. Coupled to the ring 27 is a further ring 30 bearing two cams, one of which 32 (Fig. 2) co-operates with a spring-urged lever 34 for indicating the subject setting on a scale 35, and the other of which 36 adjusts, by means of a rod 39 and a spring-urged adjusting lever 38, the angular position of the casing of an exposure meter galvanometer 21 according to the value of the exposure time set. When the shutter cocking lever 14 is released from its cocked position shown in Fig. 2 to run down in anti-clockwise direction, it is followed under loading of a spring 17 by a lug 13 of a diaphragm adjusting ring 41, the motion being terminated with the diaphragm aperture adjusted to the correct value, having regard to the ambient light conditions and the exposure time, by means of the engagement between a stepped cam member 18 coupled to the ring 41 and the pointer 20 of the galvanometer 21. The shutter 15 is secured to the camera front 1 by means of screws 23 and an objective support 2, to which the guide 5 is secured at 4, is likewise secured to the camera front by screws 3.
Patent GB-698346-A (GB)
Title: Improvements relating to pistons of fluid operated jacks
Inventor: ELLIOTT RONALD BERNARD
IPC: F16J9/28
Filed: 1950-12-13
Abstract: 698,346. Pistons. HYMATIC ENGINEERING CO., Ltd. Oct. 31, 1951 [Dec. 13, 1950], No. 30420/50. Class 122(i) A piston a of a fluid operated jack having peripheral grooves b, d to receive a sealing ring and lubrication wipers, has on its peripheral surface sleeving c of rubber or plastic which extends to opposite sides of the groove b having the sealing ring therein. The sleeving may, as shown, cover opposite sides of the groove b or may extend over the sides and bottom of the groove b or may be confined to the periphery. The sleeve may be of plastic sold under the Registered Trade Mark " Fluon " or of Polythene. The jack cylinder is of aluminium or magnesium alloy.
Patent GB-1269387-A (GB)
Title: Apparatus for aligning bales of crop material
IPC: B65G47/24
Filed: 1969-06-16
Abstract: 1,269,387. Conveyers for bales of crop material; hoppers. SPERRY RAND CORP. 16 June, 1969 [16 July, 1968], No. 30425/69. Headings B8A and B8S. Apparatus for aligning bales of crop material comprises first and second conveyers A and B, C, a guide member 36, and a platform D disposed adjacent a side of both the conveyer A and the conveyer B, C, the platform being inclined so that when surplus bales pass on to the platform, they can roll back on to the conveyer when the latter is clear once more. The conveyer A comprises square cross-section fabricated rollers 20, 22, 24, which are arranged by chain gearing (Fig. 3, not shown) to rotate at progressively increasing speeds. The conveyer B, C is in two separate sections, the section C running at a faster speed than section B. In use, a vehicle carrying the bales is backed up to the entry to the conveyer A. The apparatus is rotatable about a pivot P on a semi-circular track 70, There is an auxiliary stabilising leg 88 and the apparatus may be mounted on wheels so as to be mobile.
Patent GB-1376178-A (GB)
Title: Electrolytic timer delay capsule
IPC: H01G9/18
Filed: 1971-12-06
Abstract: 1376178 Electrolytic coulometers COMPULINE CORP 6 Dec 1971 [14 Jan 1974] 30438/73 Heading G1Q The disclosure is substantially identical to that of Specification 1376177, but the claim are directed to the use of the base of a cylindrical container as cathode.
Patent GB-239411-A (GB)
Title: Improvements in cross border dobbies for looms
IPC: D03C1/36
Filed: 1924-12-18
Abstract: 239,411. Fielden, F., and Fielden, A. Dec. 18, 1924. Dobbies.-A lever c which carries the body and border pattern lag barrels is controlled by the action of the dobby lever r on a triangular lever which is positioned by a further pattern lag q<1>. The lever j is pivoted in a lever h the free end of which is slidably pivoted to a lever e fixed relatively to the lever c. A lever o is oscillated by the pattern lag q<1> through a spring as in Specification 20146/98, to position the lever so that the dobby lever r acts upon one side or other of the apex thereof. The pivot i of the lever h is adjustable. Specification 183,296 also is referred to.
Patent GB-765167-A (GB)
Title: Improvements in or relating to electric stack batteries
IPC: H01M50/103
Filed: 1954-10-22
Abstract: 765,167. Batteries. PERTRIX-UNION GES. Oct. 22,1954 [Nov. 4, 1953], No. 30524/54. Addition to 742,426. Class 53. The zinc electrode 8 of the cell of the parent Specification is provided with a conducting foil 9 connected to the electrode by a rolling or other process and the electrolyte carrier 7 is connected to the zinc electrode by cementing. The foil 9 may consist of a conductive resin. The depolarizer electrode 5 is covered with paper 6 and is provided with a conductive foil 1 which is cemented at 3 to the casing and is formed with tongues 2 projecting from the casing for testing purposes. Specification 755,179 is also referred to.
Patent GB-719776-A (GB)
Title: Diesel fuel
IPC: C10L1/24
Filed: 1950-12-14
Abstract: Lead sulphonates and naphthenates are employed as ingredients in fuel oil compositions (see Group III).  Specification 674,765, [Group III], is referred to.  Lead mahogany sulphonate.-Crude calcium mahogany sulphonate (50 per cent oil) is dissolved in a petroleum distillate (boiling range 185-290 DEG  F.) and the solution is repeatedly washed with aqueous lead nitrate in the presence of ethyl alcohol with steam agitation.  A small amount of litharge is added to neutralize any acidity and the petroleum distillate is distilled off, leaving a concentrate of lead mahogany sulphonate. Lead alkyl benzene sulphonate.-Benzene is alkylated with polypropylene (a C12-C15 olefin cut) and the alkylated benzene is sulphonated with concentrated sulphuric acid and then neutralized with sodium hydroxide.  The sodium sulphonate is reacted with lead nitrate to obtain the lead sulphonate.  Basic lead alkyl benzene sulphonate.-The alkyl benzene sulphonic acid prepared as above is reacted with a 100 per cent stoichiometric excess of litharge to obtain the basic lead salt. Lead naphthenate.-Petroleum gas oil is washed with aqueous caustic soda and the aqueous sodium naphthenate solution is treated with strong sulphuric acid to release the naphthenic acid. This is distilled and then treated with litharge.  Lead naphthenate is extracted from the reaction mixture with Stoddard solvent.ALSO:A composition which, in spite of its sulphur content, causes little engine wear when employed as a fuel for diesel engines comprises a petroleum distillate boiling in the range of about 350-750 DEG F. and having an A.P.I. gravity above 20 DEG  and a sulphur content above about 0.5 per cent. by weight, together with a minor proportion of an oil-soluble lead naphthenate, lead sulphonate and/or lead salt of a fatty acid, sufficient to give the composition a lead content of about 0.005-0.07 per cent. by weight.  The sulphonic acids from which suitable lead sulphonates are prepared are preferably those having a molecular weight above about 400, for example sulphonic acids obtained by sulphonating white oils, petroleum lubricating oil fractions, higher boiling fractions of SO2 extracts of petroleum gas oils, and high boiling synthetic alkylated aromatic hydrocarbons, such as those formed by alkylating benzene with propylene polymers, butylene polymers or mixed propylene-butylene polymers. Lead salts of fatty acids mentioned are the oleate, palmitate, and stearate, and the soaps prepared from unrefined fats.  In the examples, the normal or basic lead salt of naphthenic acids of molecular weight above about 225, or of sulphonic acids prepared by alkylating benzene with polypropylene (C12-C15 cut) and sulphonating the product, is added to the petroleum distillate.  Specification 674,765 is referred to.
Patent GB-1379285-A (GB)
Title: Continuous working up of dilute aqueous aluminium fluodide solutions
Inventor: SCHMIDT ALFRED DR
IPC: C01F7/50
Filed: 1972-06-29
Abstract: 1379285 Aluminium fluoride CHEMIE LINZ AG 29 June 1972 [7 July 1971] 30606/72 Heading C1A Aluminium fluoride trihydrite crystals are produced from a dilute aqueous soln. containing less than 1% of aluminium and containing aluminium silicofluoride and/or fluosilicic acid by passing the soln. through a continuously operating vacuum crystallizer maintained at a conc. of SiF 6  ion in the soln. in the crystallizer of 12 to 14% by wt., at a temp. of 70 to 75 C. and a pressure of 0À3 to 0À4 atmospheres absolute. Aluminium fluoride trihydrate seeding crystals may be added on to the start of the process and any escaping vapours may be scrubbed by means of a small tower on the crystallizer. The process is especially applicable to the solution in the mother liquor from the crystallization of AlF 3  after reaction of Al(OH) 3  with fluosilicic acid.
Patent GB-838484-A (GB)
Title: Rotary transformer
IPC: H02K24/00
Filed: 1958-09-25
Abstract: 838,484. Transformers; core constructions for selsyns. LEAR Inc. Sept. 25, 1958 [Jan. 3, 1958], No. 30621/58. Classes 35 and 38 (2). The stator and rotor of a rotary transformer, e.g. a synchro or a goniometer, are made of a ferrite material and have slots 12, 24 in which wire conductors 26 may be secured with an adhesive 28 as shown, or a conducting material, e.g. silver, may be deposited in them (Fig. 4, not shown) and end turns of wire soldered to it.
Patent GB-1441801-A (GB)
Title: Crash barriers
IPC: E01F15/00
Filed: 1973-06-28
Abstract: 1441801 Crash-barrier ACIERIES REUNIES DE BURBACH-EICH-DUDELANGE SA 28 June 1973 [29 June 1972] 30800/73 Heading E1G A set of parts for a crash barrier comprises a plurality of rails each having a hard foamed material (e.g. polyurethane) surrounding an elongate metallic core which, as viewed in transverse cross-section, comprises members which lie in at least two non-parallel planes and a plurality of stanchions 11 for securing to the core. The core has apertures which receive the stanchions 11 and which locate struts 23. The ends of the rails may be free from foam to permit the cores of adjacent rails to be welded together and to be subsequently covered with foam. The core may define a central longitudinally extending hollow, Figs. 3 and 5 (not shown), filled with a foam of a different density from the foam 21. The rail may have an outer plastics skin. For Figures see next column