baber/WOPTO huggingface dataset:
Patent GB-1107244-A (GB)
Title: Process for the production of o-hemiacetals of formaldehyde
IPC: C07C43/30
Filed: 1965-07-23
Abstract: O-Hemiformals are prepared by slowly introducing pure formaldehyde substantially at the rate at which it reacts into an unsubstituted or substituted monohydric or polyhydric alcohol or a phenol while cooling in such a way that the reaction temperature is at least 0 DEG C. and the concentration of free formaldehyde does not exceed 8% by weight with reference to the reaction mixture. Temperatures of 0 DEG to 140 DEG  C. are preferred and the formaldehyde is preferably used in the gaseous phase, optionally diluted with an inert gas.  When using polyhydric alcohols, insufficient formaldehyde to react with all the hydroxy groups may be used. An inert solvent may be used or the pure hydroxy compound, sometimes as a melt. Examples prepare hemiformals from: (31) a glycerol-adipic acid polyester; (32) a hydrogenated acetophenone-formaldehyde condensate; (33) a vinyl chloride/vinyl acetate/propylene glycol monoacrylate copolymer; and (34) polyethylene glycol 400.  Reference is also made to other polyesters, polythioethers, polycarbonates, and hydrolysed copolymers of vinyl acetate with vinyl chloride, styrene, butadiene, vinylidene chloride, acrylic esters, methacrylic esters, acrylonitrile or maleic anhydride as starting materials.ALSO:O-Hemiformals are prepared by slowly introducing pure formaldehyde substantially at the rate at which it reacts into an unsubstituted or substituted monohydric or polyhdric alcohol or a phenol while cooling in such a way that the reaction temperature is at least 0 DEG  C. and the concentration of free formaldehyde does not exceed 8% by weight with reference to the reaction mixture. Temperatures of 0 DEG  to 140 DEG  C. are preferred and the formaldehyde is preferably used in the gaseous phase, optionally diluted with an inert gas.  When using polyhydric alcohols, insufficient formaldehyde to react with all the hydroxy groups may be used.  An inert solvent may be used or the pure hydroxy compound, sometimes as a melt.  Examples prepare hemiformals from propanol, n-butanol, 2-ethylhexanol, lauryl alcohol, cyclohexanol, sec.-butanol, allyl alcohol, propylene glycol monoacrylate, 5 - hydroxymethyl bicyclo - (2.2.1) - heptene-(2), phenol, glycidol, propargyl alcohol, glycol, butanediol, diethylene glycol, thiodiglycol, glycerine, trimethylolpropane, triethanolamine, butene-2-diol-(1,4) and butanediol-(1,4).
Patent GB-1174871-A (GB)
Title: Monoisocyanates and Polyisocyanates
Inventor: ARLT DIETER
IPC: C07C263/10
Filed: 1968-07-02
Abstract: 1,174,871. Process for the production of isocyanates. FARBENFABRIKEN BAYER A.G. 2 July, 1968 [6 July, 1967], No. 31444/68. Heading C2C. Monoisocyanates or polyisocyanates are obtained by reacting an optionally substituted, saturated or unsaturated, aliphatic, araliphatic or aromatic monoisocyanide dihalide or polyisocyanide dihalide with an anhydrous strong acid containing dissociable hydrogen attached to oxygen and having a pKa value of up to 2À8, optionally in the presence of a solvent, and subsequently heating the reaction mixture followed by removal of the resulting acid halide and the solvent, where used. The initial temperature of the reaction is generally between 10 and 60 C. and is then heated to a temperature of up to 250 C. Preferred dihalide starting materials are the dichlorides and suitable acids for use in the process are aliphatic and aromatic sulphonic acids, aliphatic and aromatic phosphonic acids, strong carboxylic acids and inorganic acids such as chloro- and fluoro-sulphonic acids. The acids may be prepared in situ by reaction of water with the appropriate acid halide.
Patent GB-776634-A (GB)
Title: Improvements relating to silver transfer-reversal processes and their products
IPC: G03C8/06
Filed: 1955-11-03
Abstract: 776,634. Photographic silver transferreversal process. INTERNATIONAL POLAROID CORPORATION. Nov. 3, 1955 [Nov. 4, 1954], No. 31448/55. Class 98(2) An exposed silver halide stratum and a silver receptive stratum in superposed relation are subjected to a solution comprising a developer and a silver halide solvent to form negative and positive prints in the strata respectively, the silver of the positive print having a higher covering power than that of the negative, and the solution. is dried while maintaining the strata in permanentaly superposed relation. The positive image may be viewed directly when a white opaque support is used for the receptive stratum, or may be projected in the case of a transparent support, the weak negative image producing little interference. The silver receptive stratum may be such as to provide a vigorous silver precipitating environment, as described in Specification 703,231, and some remarks referring to the thickness of the silver halide stratum and concentration of silver halide therein are presented. In the drawing Figs. 1 and 2 illustrate respectively spreading of the processing solution and the finished print using initially. separate strata, and Figs. 3, 4 the procedure using initially superimposed strata.
Patent GB-1196782-A (GB)
Title: Fuel-Injection Internal Combustion Piston Engine Operating with Air Compression.
IPC: F02B23/06
Filed: 1967-07-07
Abstract: 1,196,782. Combustion chamber. KLOCKNERHUMBOLDT-DEUTZ A. G. July 7, 1967 [Aug. 16, 1966], No.31485/67. Heading F1B. Fuel is injected into a cylindrical combustion chamber 2, inclined to the cylinder axis, through two or more jets 6, 7, spaced by a small angle, the jets being substantially perpendicular to the plane of rotation of the air swirling about the chamber axis. The jets 6, 7, are substantially parallel and adjacent to the longest part 9 of the chamber wall. An igniter 5 for starting is situated close to the jets 6, 7; alternatively a separate jet may be directed on to the igniter.
Patent GB-1332534-A (GB)
Title: Apparatus for developing electrostatic latent images
IPC: G03G15/10
Filed: 1971-07-05
Abstract: 1332534 Liquid developing apparatus FUJI PHOTO FILM CO Ltd 5 July 1971 [3 July 1970] 31504/71 Heading G2H An electrostatic latent image bearing web 1 is passed between drums 17-20 and electrodes 26-29 and developed by liquid developer pumped through nozzles 21,22,24,25; the web being intermittently advanced so that each image area is moved from one electrode to the next at each step. Preferably a flat electrode 30 and a nozzle 23 are also provided. Guide rollers 11-16 may also act as development electrodes. Preferably the electrode drum spacing decreases in the direction of web advance. The web may be moistened before development and, after development, may be rinsed by liquid pumped through nozzles 47-49. The web is preferably perforated and fed by a sprocket drum 6.
Patent GB-926662-A (GB)
Title: Improvements in printing presses
Inventor: BROOKS FRANK
IPC: B41F23/04
Filed: 1958-10-02
Abstract: 926,662. Printing machines. SUTCLIFFE, SPEAKMAN & CO. Ltd. Dec. 29, 1959 [Oct. 2, 1958 (2)], Nos. 31551/58 and 31553/58. Class 100 (2). A printing press comprises guide-rollers so disposed that a web to be printed is caused to follow an S-shaped path through the press to present opposite sides successively to printing cylinders, suction means which withdraw air from the areas adjacent to the printing positions immediately after printing, means for directing warm, hot and cold air in zones successively on to the web after printing, means for directing steam into these zones and additional suction means for withdrawing and re-circulating the air from these zones. As shown, Fig. 1, a web, indicated by the chaindotted line, is fed into the press at the lower left-hand corner where it is printed on one side by a printing cylinder 19 and impression cylinder 18. After leaving the cylinders 18, 19 the web is fed horizontally and then upwards round a succession of driven rollers 5 and then back into the nip of a second printing couple 21, 22 which prints the other side of the web. After the second printing operation the web is guided first upwards and then horizontally around further rollers 5 and finally out of the press. The two series of rollers 5, i.e. those disposed before and after the second printing couple, are enclosed by hoods 10, 6 respectively the hood 6 consisting of two parts 8, 9 and the hood 10 consisting of two parts 11, 12. The hood parts are pivotally mounted on the machine frame and can be swung away from the rollers 5 by hydraulically operated means including linkages 13, 14, 15, 16. Jets 23, Fig. 3, are mounted within the hoods, through which jets heated air is directed at an angle on to the printed side of the web as it passes over the rollers 5. Jets are also mounted in the hoods which direct cold air on to the web at positions beyond the positions of application of the heated air. In those portions of the hood parts 8, 11 immediately adjacent to the printing couples suction means are provided; the air drawn from these areas contains the major part of the solvent in the ink and this solventladen air is passed to a solvent recovery plant. Suction means are disposed at the back face of the web as it passes through the warm, the hot and the cold zones of the two hoods and the air drawn from these zones is recirculated through the plant. In the warm and hot zones of the hoods 6, 10 dry steam is directed at the web through nozzles 24, the steam having the effect of improving the evaporation of solvent from the web. Specification 916,972 is referred to.
Patent GB-297597-A (GB)
Title: Improvements in or relating to the treatment of sulphide ores or sulphidic metallurgical products
IPC: C22B19/36
Filed: 1927-11-24
Abstract: 297,597. Krupp Grusonwerk Akt.- Ges., r. Nov. 24, 1927. Addition to 234,826. Roasting.-Sulphide ores or sulphidic metallurgical products are first roasted in an oxidizing atmosphere, e.g. in a rotary tubular furnace, to remove a portion of the sulphur in the material, in the form of sulphur dioxide, and thus effect a saving in the quantity of binding material for the sulphur necessary in the process described in the parent Specification. The material is then immediately volatilized with the addition of reducing agents as well as of agents such as alkaline earths to bind the remainder of the sulphur in the residue, the waste gases from the preliminary roasting furnace being combined with the gases of the volatilization furnace, or, alternatively, the gases of the volatilization furnace are conveyed through the roasting furnace, if desired with the addition of air to assist oxidation, to form metal sulphates. This product is suitable for subsequent lixiviation. The process is especially suitable for the manufacture of electrolytic zinc, any lead sulphate associated with the zinc sulphate remaining behind as an insoluble residue during lixiviation.
Patent GB-465884-A (GB)
Title: Process of preparing food products from barley, soya beans, maize and ground nuts
IPC: A23L7/104
Filed: 1935-11-15
Abstract: A substitute for whole or skimmed milk for use in feeding pigs, calves, &c. is produced by grinding maize, soya beans, barley or ground nuts, which may be germinated, with water, skimmed milk, whey or the like, heating and fermenting the pulp obtained with enzymes, such as peptase and malt enzymes, to break down the proteins and carbohydrates therein to more soluble products, emulsifying cod liver oil or other vitamin-containing oil or fatty substance therewith, homogenizing and drying by atomizing in hot gases.  Glucose, maltose or both may be added to the watery pulp, and part of the fat content may be replaced thereby when the product is to be used for feeding calves.  In an example, malt is added to the pulp at 45 DEG  C. and the mixture heated step by step to 70 DEG  C.  The drying may be effected by spraying, e.g. by means of a rotary atomizer such as is described in Specification 430,139, [Group XXIX], into hot air, combustion gases, nitrogen, &c.  The product may be dissolved in water, skimmed milk, &c. to form an emulsion.ALSO:A milk substitute is produced by grinding maize, soya beans, barley or ground nuts, which may be germinated, with water, skimmed milk, whey, or the like, heating and fermenting the pulp obtained with enzymes, such as peptase and malt enzymes, to break down the proteins and carbohydrates therein to more soluble products, emulsifying cod liver oil or other vitamin-containing oil or fatty substance therewith, homogenizing and drying by atomizing in hot gases.  Glucose, maltose or both may be added to the watery pulp, and part of the fat content may be replaced thereby when the product is to be used for feeding calves.  In an example, malt is added to the pulp at 45 DEG  C. and the mixture heated step by step to 70 DEG  C.  The drying may be effected by spraying, e.g. by means of a rotary atomizer such as is described in Specification 430,139, [Group XXIX], into hot air, combustion gases, nitrogen, &c.  The product may be dissolved in water, skimmed milk &c. to form an emulsion.  It may be used in place of whole or skimmed milk in feeding pigs, calves or other animals.
Patent GB-1080480-A (GB)
Title: Monoazo dyestuffs fast to sublimation,their method of manufacture and their applications
Inventor: JIROU MARCEL GEORGES
IPC: C09B29/08
Filed: 1966-07-15
Abstract: The invention comprises compounds of the formula <FORM:1080480/C4-C5/1> where X is H or an alkyl or alkoxy group having up to four carbon atoms and R and R1 are alkyl groups.  The compounds are prepared by coupling in an acid medium the diazo derivative of 2-amino-3,5-dinitrobenzonitrile with a compound of the formula <FORM:1080480/C4-C5/2>
Patent GB-471834-A (GB)
Title: Improvements in stoppers for bottles and the like
IPC: B65D41/22
Filed: 1936-11-20
Abstract: 471,834. Stoppers for bottles &c. FREEMAN, W. S. Nov. 20, 1936, Nos. 31869/36 and 1799/37. [Class 125(iii)] A resilient stopper for a bottle &c. comprises a plug portion 1, and a flexible skirt 2 which has serrations 3 formed thereon. The plug portion is hollowed at 5. A flange 11 terminates the skirt, which is folded back over the bottle neck as shown in Fig. 4, to close the bottle. In a modification, the plug portion is hollowed on the opposite side.
Patent GB-1483613-A (GB)
Title: Porous ferrous metal structures
IPC: C21C1/10
Filed: 1974-07-18
Abstract: 1483613 Impregnated iron/steel compacts; treating molten iron N L INDUSTRIES Inc 18 July 1974 [3 Aug 1973 26 March 1974] 31978/74 Heading C7D [Also in Division B3] A body of ferrous metal is made of interlocking pieces of ferrous metal pressed together to form a body with a labyrinth of voids, a density of 1.2 to 4À0 gm/cc and a porosity of 50% to 85%. The pieces are preferably steel scrap turnings 1/8 to 9 inches long, 1/64 to 1 inch wide and 1 to 100 mils thick. The body may be impregnated with magnesium or magnesium alloy to produce a body which can be used to desulphurize molten iron or to form nodular iron. The scrap is degreased before or after compaction. The magnesium impregnation is achieved by dipping the body in molten magnesium. The body may be heated prior to dipping. The impregnated body is cooled in the absence of an oxidizing atmosphere, for example by immersion in oil. The magnesium content of the body is 18 to 55 wt. per cent.
Patent GB-741265-A (GB)
Title: A fluid pressure actuated time-delay valve
Inventor: HEIZER EDWARD JANSEN
IPC: F16K17/32
Filed: 1953-11-20
Abstract: 741,265. Fluid-actuated valves. SPECIALTIES DEVELOPMENT CORPORATION. Nov. 20, 1953, No. 32215/53. Drawings to Specification. Class 135. The subject-matter of this Specification is included in Specification 741,256, but the claims differ.
Patent GB-934878-A (GB)
Title: Marine propulsion unit attachable to boats
Inventor: HAMLYN PETER MORTON
IPC: B63H20/22
Filed: 1960-09-20
Abstract: 934,878. Outboard motors; rudders. INSTRUMENT RESEARCH LABORATORIES Ltd. Nov. 29, 1961 [Sept. 20, 1960], No. 32256/60. Class 114. An outboard drive carries a rudder 12 rotatably mounted on a shaft 15 which has an arm 28 joined to its other end. A rudder post 9, carried by the transom bracket 4, is also provided with an arm 25. Rotation of the post 9 is transmitted to the shaft 14 via a channelsectioned arcuate frame 22 which is pivoted to the drive casing at 23. The drive is adapted to tilt about an axis coinciding with that of the shaft 14 and during such movement the slipper 27 of the arm 25 can slide with respect to the frame 22. As described an inboard I.C. engine drives the shaft 14 through a chain-drive and clutch which rotates a propeller 13 through bevel-gearing and shafts 16 and 21. The Specification describes a locking latch 30, acting on the transom bracket 4, which is described and claimed in Specification 934,877. Specification 932,608 also is referred to.
Patent GB-807484-A (GB)
Title: Improvements in devices for dispensing measured quantities of liquids from bottles
Inventor: BERWICK ALBERT GEORGE
IPC: G01F11/02
Filed: 1956-10-23
Abstract: 807,484. Reciprocating pumps. GASKELL & CHAMBERS Ltd. [trading as NON-DRIP MEASURE CO.] Oct. 1, 1957 [Oct. 23, 1956], No. 32270/56. Class 102(1). A device for dispensing measured quantities of liquid from a bottle comprises a body part 1 adapted to seat on the mouthpiece of a bottle 2. A sleeve 14, screwed on to the body 1, has screws 15 extending radially through the sleeve and by adjusting the sleeve 14 axially on the body 1 the screws 15 are so positioned to engage a shoulder or groove, such as 16, on the neck of the bottle to clamp the pumping unit. The sleeve 14 need not necessarily be screwed to the body 1, it may for example be movable telescopically thereon. The pump unit comprises a cylinder 4 detachably screwed to the body 1 in which reciprocates a hand operated piston 7, the body 1 having the necessary inlet and outlet passages provided with non-return valves. A spring may be placed between the body 1 and the piston 7. Specification 504,375 [Group XXVI] is referred to.
Patent GB-538017-A (GB)
Title: Improvements relating to water, oil or other liquid coolers
IPC: F28F9/02
Filed: 1939-12-15
Abstract: 538,017. Tubular heat exchangers. MORRIS MOTORS, Ltd., and DONO, G. E. Dec. 15,1939, No. 32311. [Class 64 (iii)] In a liquid cooler for use in aircraft and road vehicles and of the kind comprising thin metal tubes a provided with gill plates c and connected inlet and outlet headers b, the headers are reinforced by stay-bolts e. The headerplates are formed with recesses j to receive the nuts at one or both ends of the bolts.
Patent GB-342267-A (GB)
Title: Partition structures for buildings or the like
IPC: E04B2/78
Filed: 1929-10-24
Abstract: 342,267. Buildings. CARPENTER, R. F. and ANDERSON, T. F., 1705, Urbana Road, Cleveland, Ohio, U.S.A. Oct. 24, 1929, No. 32370. [Classes 20 (iii) and 20 (iv).] A partition structure for buildings, of the kind comprising top and base slot or channel members 4, fixed to ceiling 1 and floor 2 respectively to receive the margins of intermediate structural parts such as panels, has these members formed hollow, as shown in Figs. 4 and 5, and of any desired depth, and posts 12, Fig. 9, having outer portions projecting beyond the outer face of the channel members and notched at their ends to the width of the channel members are slipped over to straddle them and slid into desired position. Outer portions of the posts at the ends conceal the intersections with the members 4, 7. The posts 12 have longitudinal flange portions 15, 20 spaced to correspond with the width of the channels in the channel members 4, 7 to receive panels 37 which are inserted also in the channels. The posts may be in two sections, as shown in Fig. 9, with a reinforcing element 17 fixed to one section and adapted to be secured by screws 22 to the other. The panels may be of one unit construction or arranged in horizontal or vertical sections, and are made of standard units, fillers being employed for areas smaller than the unit. If in one section, it comprises a marginal hollow frame, with a recess or channel for a panel of glass, metal or other material, the channel being of such depth as to permit latitude of movement of the panel in assembling to cope with irregularities of shape in the work. The frames 40, Fig. 16, of the panel units may have angle portions and the panels may be secured therein by mouldings 45 detachably secured to one leg. 41 of the angle portion. Tongues 42 on the frames of the panel units engage beads 43 in flanges 44 on the mouldings 45 to retain the panels in position.
Patent GB-862237-A (GB)
Title: Improved method and apparatus for producing television signals
IPC: H04N11/22
Filed: 1956-10-24
Abstract: 862,237. Television. KEMP. W. D. Jan. 24, 1958 [Oct. 24, 1956], No. 32427/56. Class 40(3). Sequential colour signals as illustrated in Fig. 2 are converted to simultaneous signals by a magnetic or electrostatic recording apparatus, Fig. 3, in which the sequential signals are recorded separately and subsequently reproduced simultaneously. A separate disc 6a, 6b, 6c, driven in one direction at 60 R.P.S. is provided for each of the colour components, red, green and blue, and co-operates with a recording head 9a, 9b, 9c driven in the opposite direction at 120 R.P.S. The time of one relative rotation is thus 1/180th sec., permitting one complete field to be recorded. The sequential signals are routed to the appropriate heads at field rate by a commutator system 3, 12, oran electronic circuit, each head being effective for one relative rotation and remaining ineffective for the subsequent two relative' rotations when the other heads are effective. Preceding each recording head in the direction of rotation is an erase head which removes any previously recorded signal. Simultaneous reproduction of the recorded signals is effected by three stationary heads 13a, 13b, 13c, these being located at 120 degrees intervals and not in line as shown for convenience of illustration. Since the rate of rotation of the discs relative these heads is 60 R.P.S. the field rate of the reproduced signals is reduced to 60. The simultaneous signals may be subsequently encoded in accordance with the M.T.S.C. standards. In order that the reproducing heads shall be out of the path of rotation of the recording heads, shaft 8 carrying the recording heads rotates about a centre displaced a small distance from the centre of rotation of the discs, (Fig. 1 not shown). It is stated that the track on a disc during recording is sufficiently wide to be engaged by the reproducing head. Reference is made without giving details to alternative arrangements employing: recording drums; magnetic tape or wire in the form of an endless loop; and a single disc cooperating with three heads to record the colour components on separate tracks, the heads being arranged to move in an axial or radial direction during a part of their rotation to avoid collision with the reproducing heads. Reference is also made to the conversion of line sequential signals.