baber/WOPTO huggingface dataset:
Patent GB-1467653-A (GB)
Title: Vat dyestuffs prepared from crude aminoanthraquinone mixtures
IPC: C09B1/48
Filed: 1974-03-21
Abstract: 1467653 Preparing vat dyestuffs TOMS RIVER CHEMICAL CORP 21 March 1974 [30 March 1973] 12631/74 Heading C4P Vat dyestuffs are prepared by condensing a halogenated benzanthrone, anthrone or anthraquinone with a mixture of aminoanthraquinones the mixture consisting of 65-80% by weight 1-aminoanthraquinone and 20-35% by weight of a mixture comprising 2-amino- and 1,5- and 1,8-diaminoanthraquinones, and then optionally cyclizing the dyestuff formed. In Example 1 the above mixture of anthraquinones is prepared by reducing nitroanthraquinone with Na 2 S. The dyes are used in cotton and polyesters.
Patent GB-1383706-A (GB)
Title: Scrubbing or buffing device
IPC: A47L13/20
Filed: 1972-03-17
Abstract: 1383706 Cleaning pads T V MOSS 17 March 1972 [30 March 1971] 12669/72 Heading A4F A scrubbing or buffing device for use in cleaning carpeting or other surfaces comprises a layer of absorbent yarn cords 8, covered on at least one side by an open scrim covering 3, e.g. of nylon, polyethylene, polyester, polypropylene, or rayon, for preventing excessive wear of the cords 8 and for loosening dirt, and allowing cleaning liquid to pass therethrough to the cords 8. In the illustrated embodiment a scrim covering 3 is provided on both sides of the cord layer, and the edges of the device are reinforced by a stiff cord 19 Fig. 2 (not shown), and bound with nylon or cotton tape 4. The cords 8 may be parallel or formed as loops 9 Fig. 3 (not shown), on one or both sides of a fabric backing (10). The device may be rectangular for mounting on a rectangular head in a rotary buffing machine, or may be of oval or obler shape and mounted on a rotary brush in a buffing machine. In other embodiments the device is mountable on a mop frame or mop head Figs. 6 and 7 (not shown).
Patent GB-770306-A (GB)
Title: Therapeutically valuable derivatives of p-aminosalicylic acid and process for their manufacture
Filed: 1954-04-30
Abstract: The invention comprises p-aminosalicylic acid derivatives of the general formula <FORM:0770306/IV(b)/1> (wherein one X represents H and the other SO3Na, SO3K or COOH), and the preparation thereof by reacting a 2 : 3-dichloronaphthoquinone of the formula <FORM:0770306/IV(b)/2> with an alkali metal salt of p-aminosalicylic acid.  The products are useful as tuberculostatic and sterilizing agents.  In examples, the sodium salt of p-aminosalicylic acid is heated in aqueous solution with (1) 2 : 3-dichloro-1 : 4-naphthoquinone-5- o -6-sulphonic acid sodium salt; and (2) 2 : 3-dichloronaphthoquinone-5-carboxylic acid.
Patent GB-663112-A (GB)
Title: Improvements relating to thermal power plants
IPC: F01K19/04
Filed: 1949-05-13
Abstract: 663,112. Power generating systems; gas turbine plants. SULZER FRERES SOC. ANON. ' May 13, 1949 [May 14, 1948; Feb. 19, 1949], Nos. 12839/49 and 12840/49. Classes 110(iii) and 122(iii) Relates to power plants in which the working medium has a critical temperature between 260‹K. and 620‹K. and passes through a cycle in which preheating after compression and precooling after expansion are effected by heat exchange between different parts of the working medium, and in which at least one point of the To diagram of that part of the cycle comprising final cooling, compression and preheating is in the region of the critical point. According to the invention a part of the working medium is tapped from the main stream at a point after expansion and before main heating, is separately compressed, and is then returned to the main stream at a point which is at the same temperature and precedes the main heating. Various gas turbine plants are described. In Fig. 2, the main stream compressor 13 deals with the medium when in a fluid or quasi-fluid state and the compressed medium passes through coil 22 in the preheater. Part of the medium is extracted at the end 24 of the preheater, is passed through a compressor 26 and is returned at 27 to the medium being preheated. A second tapping may be made at an earlier point in the exhaust flow and be similarly treated. In Fig. 6, the exhaust stream passes through coils of the preheaters 53, 56, 60, 62 and 64. Part of the medium is extracted at 43, is passed through a first compressor 45, gives up heat in preheaters 56, 60, is compressed in a second compressor 48, gives up heat in preheater 60, is finally compressed in compressor 51 and is returned at 52 to the main stream being reheated. In Fig. 8, partly condensed medium is extracted at 66, is compressed and evaporated in compressor 68. receives at 77 heat from the main exhaust stream where its temperature is too low for preheating the main stream, is further comoressed at 71 and is returned to the main stream at 72. In Fig. 10. the main stream compressor is in two stages 13a. 13b. Medium is extracted between the stages, is heated at 89 by the residual heat of the main exhaust stream, is compressed at 83 and returned to the main stream at 84. In Fig. 12, partially preheated medium is extracted at 91. is expanded in a turbine 93 to a temperature below the minimum of the main cycle, receives heat in a first condenser 104, is recompressed at 96 and returned to the main stream at 97.
Patent GB-1435654-A (GB)
Title: Choke or transformer
IPC: H01F41/02
Filed: 1974-03-22
Abstract: 1435654 Welding by pressure FRATER SA 22 March 1974 [3 April 1973] 12919/74 Heading B3R [Also in Division H1] Core parts 4, 5 of one or more #-laminations have protrusions 1 which are resistance welded under pressure to the opposing core part, thereby enclosing a winding supported on a spool (Fig. 3, not shown) In a preferred embodiment, protrusions 1 of a stack of laminations can be aligned to form a continuous lip. The welding of isolated laminations in a stack is also envisaged, and the welding in all cases may be under pressure.
Patent GB-764970-A (GB)
Title: Improvements in photographic apparatus and processes
Inventor: TYLER FRANK
IPC: G03B21/32
Filed: 1954-05-04
Abstract: 764,970. Photographic process and apparatus. KELVIN & HUGHES, Ltd. April 26, 1955 [May 4, 1954], No. 12935/54. Class 98(1) In a process in which exposure, processing and viewing are effected serially in rapid succession on portions of light-sensitive material on a sheet base, viewing light transmitted along such base is refracted out of the base by means of a valley crimped therein before reaching unprocessed or unexposed parts of the material, for the purpose of avoiding fogging the latter. In apparatus for the purpose the sheet base 11 lies between a lower guide frame 10 with exposure opening 12, processing aperture 13 and projection or viewing aperture 14, and upper guide plate 15 which carries a crimping bar 21 operable to. crimp the base 11 into recess 18 in the lower guide frame 10. The crimping bar is operated by spring 30 through lever 27 and returned to inoperative position by solenoid 31 raising the lever 27 and so permitting spring 24 to raise the bar. Recesses 33, 34 on opposite sides of the viewing aperture 14 serve to maintain the crimps.
Patent GB-444778-A (GB)
Title: Improvements relating to lubricating compositions
IPC: C10M171/00
Filed: 1935-05-01
Abstract: A lubricant comprises a lubricating oil and a mildly oxidized addition agent prepared by blowing a gas rich in free oxygen, at a temperature below about 200 DEG C., through an aliphatic acid, ester or alcohol containing in the molecule at least 10 carbon atoms in a relatively straight chain and having an iodine number below 60. Acids specified include stearic, mixed acids obtained from fats, waxes &c., and phenyl stearic acid. The oxidized acids may be esterified preferably with low molecular weight alcohols. Esters may be synthetic or obtained from natural fats, &c. e.g. coconut oil and palm oil. Waxes such as beeswax, Chinese wax, spermaceti, carnauba, montan wax, Japan wax and wool fat are also suitable, also glycerides, e.g. animal and vegetable tallow, lard, cotton-seed stearine, grapeseed oil and whale oil.  Oxidized higher alcohols may be used as such or preferably after esterification with low molecular weight acids.  When the iodine number is above 60, the material is first hydrogenated.  Oxidation is effected by means of air or other gases rich in free oxygen, normally in the temperature range 100--180 DEG  C., catalysts, e.g. manganese and cobalt salts of fatty acids, may be employed. Examples are given, of the use of mildly oxidized coconut oil and beeswax, and of oxidized, hydrogenated menhaden oil. The oxidized products may be added to crude, refined and synthetic oils, fuels, solvents, etc.; also to fatty oils and ester lubricants. Sludge dispersers, pour depressers, metallo-organic compounds, soaps, dyes, oil-soluble resins, oxidation inhibitors &c. may also be added.
Patent GB-664954-A (GB)
Title: Improvements in or relating to moulding compositions for gramophone records and the records thus produced
IPC: C08K5/01
Filed: 1949-05-16
Abstract: A moulding composition for gramophone records comprises 100 parts of a vinyl halide-vinyl ester copolymer and from 8 to 40 parts by weight of a resin-extending plasticizer comprising a mixture of high molecular weight aromatic hydrocarbons derived from petroleum oils having a viscosity between 5 and 40 centistokes at 100 DEG  C., a S.G. between 0.96 and 1.05, and a boiling-range between 100 DEG  and 500 DEG  C. at a pressure of 1 mm. of mercury.  The copolymer contains between 70 and 95 per cent vinyl halide, and the vinyl ester is formed from an aliphatic acid containing not more than 4 carbon atoms in the molecule, e.g. polyvinyl halide/acetate.  The plasticizer may be used alone or with fillers, e.g. finely-divided silica, a diatomaceous earth, chromic oxide, titanium oxide, carbon black, cellulosic or ligno-cellulosic materials, clay and talc; stabilizers, e.g. polyalkenyl epoxyalkylethers, lead titanate, lead or strontium soaps, and metal salts of the wool fat acids and glyceryl mono-oleate; mould lubricants, carnauba, ouricury, candelilla, or montan waxes, metallic stearates or oleates and glycerol; and dyes.  Specification 573,878 is referred to.
Patent GB-1262400-A (GB)
Title: Evaporator intereffect relief seal
IPC: C02F1/06
Filed: 1970-03-19
Abstract: 1,262,400. Evaporators, multiple-effect type; desalination of water. UNITED STATES ATOMIC ENERGY COMMISSION. 19 March, 1970 [8 April, 1969], No. 13211/70. Heading B1B. In a multiple-effect evaporator wherein each effect has vertical tubes 5, 5' .. within which the liquid to be evaporated, e.g. seawater, is boiled, liquid flows from each effect to the next through sump connector pipes 17, 17' .., and is then raised to the upper ends of the corresponding heating tubes by pumps 15, U- shaped ducts 29, 29'.. are provided, between the vapour chambers 7, 7' .. of adjacent effects, for accommodating liquid-seals which normally maintain predetermined maximum pressure-differentials between the effects. Preheated seawater is supplied to the tubes of the first effect by pump 13. The tubes of effect 1 are heated by steam from boiler 19. The tubes of effect 2 are heated by the vapours evolved from the seawater in effect 1; and the tubes of effect 3 are heated by the vapours evolved from the seawater in effect 2. The vapour-condensate, i.e. desalinated water, collected in troughs 21', 21" .. is withdrawn from the evaporator as product. If pump 15 of effect 2 fails, the pressure in chamber 7 increases the water-column will blow out of duct 29' and the vapour generated in effect 1 will flow into chamber 7' and condense in effect 3. Thus the evaporator will remain in operation while the defective pump is replaced.
Patent GB-393743-A (GB)
Title: Improved apparatus for heating water
IPC: F24H1/10
Filed: 1932-05-09
Abstract: 393,743. Heating water. JONES, T. D., 28, Cedar Street, Hightown, Manchester. May 9, 1932, No. 13282. [Class 64 (i).] Water is heated by a train of sparks or flame from a flint and wheel spark device driven by a water turbine. Water under pressure rotates the turbine 1, on the shaft 6 of which is mounted a disc 9 with an annular serrated ring 10. Sparks from flints 15 adjustably held, e.g. by springs in holders 16, heat a water container wall 12 covered by a thin sheet of retort carbon 13 or other refractory or semi refractory material. Water from the turbine passes through an adjustable valve to the inlet 19 of the water container and outlet 20. A similar heater may be placed on the other side of the turbine. The water containers are of aluminium, copper or iron. Pyrophorio alloy may be used as flints.
Patent GB-983341-A (GB)
Title: Substituted succinic acid esters
Inventor: BOWMAN RALPH EDWARD
Filed: 1963-04-03
Abstract: The invention comprises succinic acid ester-of the general formula <FORM:0983341/C2/1> wherein R is a vinyl or ethinyl group; and alkali metal salts thereof.  They may be obtained by reacting an alcohol of formula Cl3-C-CH(OH)-CH2-R, wherein R has the above meaning, with succinic anhydride (a), or a b -carboalkoxypropionyl halide (b), and thereafter selectively hydrolysing the carbalkoxy group in the product.  When (b) is used the reaction is carried out in the presence of a tertiary amine, for example pyridine triethylamine or dimethylanaline.  When (a) is used, the reaction is preferably carried out in the presence of a tertiary amine or an acid catalyst such as a Lewis acid or a strong acid.  An inert diluent such as benzene, xylene, hexane, chloroform, ethyl acetate, dibutyl ether, or diisopropyl ether may be present, or an excess of tertiary amine may be used as diluent.  Suitable temperature range in this case is 20-85 DEG  C.  The selective hydrolysis of the carbalkoxy group to form the required product may be carried out with an alkali metal carbonate. The alkali metal salts of the above ester compounds are produced by neutralization in aqueous media with an alkali metal base such as sodium carbonate, bicarbonate or hydroxide.  1,1,1 - trichloro - 4 - pentyn - 2 - ol is formed by reacting chloral with propargyl magnesium bromide.  Pharmaceutical compositions having sedative or hypnotic action when administered orally or parenterally comprising a compound of the first general formula above or an alkali metal salt thereof and one or more inert diluents or excipients.
Patent GB-240124-A (GB)
Title: Improvements in or relating to pulverizers
IPC: B02C17/22
Filed: 1925-05-21
Abstract: 240,124. Goodrich Co., B. F., (Assignees of Gammeter, J. R.). Sept. 20, 1924, [Convention date]. Ball and like mills.-A rotary pulverizer or ball mill is provided with a lining of resilient material attached to the cylindrical or conical shell of the pulverizer by means embedded in the lining and not exposed to the contents of the mill. The lining is composed of sections 15, Fig. 2, positioned circumferentially in the shell 10, each section having a longitudinally-disposed flanged metal channel 17 moulded into its structure and adapted to be engaged by the heads 18 of bolts 16 which pass through the shell and are secured by nuts 22. A plate 19, perforated or not, may be riveted or welded to the innermost side of the channel 17 and extend beyond the sides thereof to form laterally-projecting wings 20, which serve to anchor the channel 17 in the rubber &c. slab 15. The sections 15 are thicker over the channels 17 so that the lining has a sinuous contour, and the surfaces that contact with the shell are made flat so that the portions on each side of the channels undergo a cylindrical deformation when secured in place. The sections may be formed of a facing portion 23, Fig. 3, of wear-resisting rubber stock and a backing portion 24 of semihard rubber stock of a considerable degree of stiffness but still somewhat elastic and compressible. The backing 24 preferably diminishes in thickness towards the lateral edges of the section, and each section 25 is formed with an undercut trailing edge 26 to overlie the leading edge 27 of the adjacent section, the channel 17 being preferably disposed nearer the trailing edge 26.
Patent GB-495333-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C23/00
Filed: 1937-05-10
Abstract: 495,333. Aircraft. ALEXANDER, R. M., and DIXON, W. F. S. May 10, 1937, No. 13331. [Class 4] An aircraft comprises one or more lifting planes 1 of elongated form in a fore-and-aft direction, and a gas envelope 19 combined with the upper surface of each plane and one or more pairs of oppositely-driven blade systems 9, 10 rotating in a horizontal plane to produce vertical lift and tiltable for horizontal propulsion. A framework 2 pivoted at 3 carries the blade systems and passenger seat 4 and is tilted by cables 14 and a wheel 18. The blade systems are driven by pedals 11. In a modification, the aircraft comprises an upper and a lower lifting plane, each having a gas envelope 19. On the lower plane is arranged a number of hollow bodies each containing a seat and pedals which drive a pair of screws. Each body may be tilted by a rack.
Patent GB-719160-A (GB)
Title: Improvements in or relating to gas filters
IPC: F02M35/08
Filed: 1952-05-26
Abstract: 719,160. Gas filters. TECALEMIT, Ltd. May 26, 1952 [July 3, 1951], No. 13339/52. Class 8 (2). In a gas filter comprising an outer casing 1 having means e.g., a cover 6 serving to direct gas which has traversed filter material 3 and a central tube 2 surrounded by said filters 3, 5 inflowing gas is accelerated and separated into a plurality of streams F parallel to the outlet 2 by bores or passages 4a in a member 4 at the end of the casing 1 opposite to the cover 6. The latter is of transparent material to afford inspection of the degree of clogging. The material 3 is of fibrous nature.
Patent GB-130798-A (GB)
Title: A Device for Economy in the use of Buffing Straps for Power Looms.
Inventor: CARSON WILLIAM JOHN
IPC: D03D49/36
Filed: 1918-08-19
Abstract: 130,798. Carson, W. J. Aug. 19, 1918. Checking picking-sticks.-To economize buffing-straps, small pieces F<1>, F<2> of strap are held in metal clips A, which are secured to the buffing-bracket D by the bolts that fasten the usual canvas strap E to the bracket.
Patent GB-591336-A (GB)
Title: Improvements in apparatus and process for dimpling
IPC: B21D22/04
Filed: 1945-05-29
Abstract: 591,336. Flanging. KELLER, P. B., and BOLTE, F. B. May 29, 1945, No. 13482. Convention date, May 24, 1944. [Class 83 (iv)] Apparatus for dimpling sheet metal comprises a die element having a countersink with a flat bottom, formed by a separate member yieldingly mounted in the die member and a second die having a frusto-conical 'head to co-operate with the countersink. A die element 7 with an upper countersink 28 has a hollow interior within which is mounted a member 9 having an upper cylindrical portion 20, the top face of which forms the bottom of the counter sink. The member is pressed upwards by a resilient pad 10 and from the portion 20 a pilot mandrel 22 projects upwardly into a bore 23 in the dimpling punch 24 and naintains the punch and die in alignment. The punch is frusto-conical with a flat annular tip surrounding the bore 23. Both punch and die have projecting members 25 and 15 for engagement with the actuating members of the punch. In a modified form, the pilot mandrel depends from the punch into a bore in the member 9. The dimple is completed by drilling out the portion 39 containing the annular flat portion formed by the punch.
Patent GB-806716-A (GB)
Title: Plastic paraffin wax and process for producing the same
IPC: C08L91/08
Filed: 1957-04-29
Abstract: A plastic paraffin wax is prepared having a melting-point of 108-117 DEG  F., a viscosity of 35-45 S.S.U. at 210 DEG  F. and an oil content not above 0.5 per cent.  This wax may be prepared by solvent-dewaxing a lubricating oil distillate to produce a slack wax, solvent de-oiling the slack wax to separate refined paraffin wax from a soft wax, and solvent-de-oiling the soft wax.  The lubricating oil distillate may have a boiling range of 650-950 DEG  F.  Solvents referred to are mixtures of an aliphatic ketone, e.g. methyl ethyl ketone, and an aromatic hydrocarbon, e.g. benzene and toluene.  After dissolving the distillate in the solvent the solution is cooled and the slack wax separated, e.g. by filtration or centrifuging.  The de-oiled soft wax may be further purified by washing or repulping. Wax compositions specially suitable for the production of food cartons comprise a mixture of 20-40 parts by weight of the plastic paraffin wax obtained as abve-described, and 80-60 parts of a refined paraffin wax of M.P. 123-145 DEG  F.  From 0.5 to 5 per cent of a crystalline paraffin wax of M.P. 165-195 DEG  F., from 0.05 to 2 per cent of polyethylene having a M.W. above 1000, and up to 5 per cent microcrystalline waxes, which may have a M.P. of 145-180 DEG  F., may also be added to the compositions. Specification 709,732 is referred to.
Patent GB-597953-A (GB)
Title: Improvements in gas turbines
IPC: F01D25/24
Filed: 1945-05-30
Abstract: 597,953. Turbines. SOC. RATEAU, and ANXIONNAZ, R. May 30, 1945, No. 13616. Convention date, May 21, 1943. [Class 110 (iii)] In a gas turbine, the part of the stator surrounding the rotor blade tips is a loose ring c with radial guidance such as g to keep it concentric with the rotor. The ring may be divided diametrically. The mass &c. of the rotor and the ring c are proportioned to secure equal thermal expansions with respect to time in the turbine operation. Similarly mounted rings c<1>-c<4> in a multi-stage turbine carry the interstage nozzles. Radial guidance is provided by pins g<1>-g<4>.
Patent GB-202383-A (GB)
Title: Process of manufacture of alkali cyanides
IPC: C01C3/00
Filed: 1922-05-15
Abstract: 202,383. Fairweather, H. G. C., (Air Reduction Co., Inc.). May, 15, 1922. Rotary furnaces; charging and discharging. - A cyanide making charge is fed continuously from a hopper 13 to an inclined rotary retort 1 set in a furnace 2 and mounted on rollers 8. The lower end of the retort enters a stationary casing 14 carrying a discharge hopper. A shaft passes through the casing 14 and carries a screw 16 for discharging the material. Nitrogen is supplied by a pipe 21 and waste gases escape through the feed hopper or otherwise. The retort provides preheating, reaction, and cooling zones, and the rotation converts the semiplastic mass into nodular form, thus facilitating discharge. By the positive feed and discharge the reaction zone is kept full, shrinkage of the charge being made up. Specification 136,750 is referred to.
Patent GB-528239-A (GB)
Title: Improvements in and relating to weighing apparatus
IPC: G01G23/00
Filed: 1939-04-21
Abstract: 528,239. Weighing-apparatus. BEST, C., and MOLINS MACHINE CO., Ltd. April 21, 1939. No. 13673/40. Divided out of 527,983. Drawings to Specification. [Class 143] In a weighing-apparatus suitable for weighing single cigarettes the scale beam is secured, for oscillating movement, upon a thread-like or strip-like element which is placed under tension by adjustable tensioning means operating through resilient means such as a helical spring. The mechanism is described in Specification 527,983. Specification 521,544 also is referred to.