baber/WOPTO huggingface dataset:
Patent GB-298349-A (GB)
Title: A process for the production of aldol
IPC: C07C45/72
Filed: 1927-09-19
Abstract: 298,349. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 19, 1927. Aldol is prepared by passing a mixture of acetaldehyde and a condensing-agent -such as caustic soda through reaction chambers having cooling-means; for instance, the mixture may be passed through cooled spiral tubes or through bundles of tubes immersed in a cooling medium. The temperature may be allowed to rise somewhat during the process, for instance by passing the mixture through a series of tubes cooled to different temperatures, and the condensing agent may be added gradually. It is preferable to allow a part of the acetaldehyde to escape reaction. The reaction product is treated to separate the aldol, for instance by first distilling off the water and part of the acetaldehyde by heating under reduced pressure, and then removing the remainder of the acetaldehyde by raising the temperature. If desired, the removal of the water may be facilitated by passing gases or vapours through the mixture. In an example, successive cooling-tubes at 3‹, 8‹, 15‹, and 20‹ C. are employed, the condensing agent being caustic soda of 1.25 per cent strength. After neutralizing the caustic soda, the mixture is passed through a packed tower at 40‹ C. under reduced pressure, and then through a second tower at 70‹ C. in which the remainder of the acetaldehyde is removed in vacuo.
Patent GB-1535097-A (GB)
Title: Turning device for flat articles
IPC: B65H5/18
Filed: 1976-06-15
Abstract: 1535097 Sheet-turning apparatus POLYGRAPH LEIPZIG KOMBINAT FUR POLYGRAPHISCHE MASCHINEN UND AUSRUSTUNGEN VEB 15 June 1976 [16 June 1975] 24716/76 Heading B8R Folded sheets 6, Fig. 1, arriving at a turning station are turned through 90 degrees in their own plane and transferred to a cylinder 31, the turning apparatus comprises two star members 2, 3 having a plurality of arms 4, 5 respectively and rotating about spaced vertical axes with the member 3 lower than the member 2, each arm 4, 5 carrying at its end a sheet entraining mechanism 7, 8 respectively. Each arm 4, Fig. 2, carries a lever 10 pivoted at 9 and supporting a roller 12 and a needle 17, and a pivotally mounted pawl 15 to engage a lug 13 on the lever 10, the lever 10 being urged away from the arm 4 by a spring 14 and the pawl being urged towards the lever 10 by a further spring. Each arm 5, Fig. 2, carries a cam 11 to engage the roller 12 when a pair of arms 4, 5 come into vertical alignment. Each arm 5 also carries a bell-crank lever 19, Fig. 3, pivoted at 20 and supporting a roller 24 and a needle 22, and a pivotally mounted pawl 26 to engage a pin 28 on the lever 19. The roller 24 co-operates with a stationary cam 23, whereby, as the arms 4, 5 pass each other, the needles 17, 22 are protruded to engage a sheet and rotate it, whereafter the pawls are released, by means of a bolt 32, Fig. 2, and a tongue 33, Fig. 3, and the needles are retracted.
Patent GB-173270-A (GB)
Title: Improvements in or relating to the lubricating of the valve mechanism of internal combustion engines
IPC: F01M9/10
Filed: 1920-08-26
Abstract: 173,270. Bailey, S. L. Aug. 26, 1920. Gravity-feed and capillary-action lubricating; cooling lubricants.-Valve mechanism of internalcombustion engines is lubricated from a box C mounted on or integral with the cylinder head. The valve-rocker bearing-pins F, which are hollow, are carried by lugs cast on the cylinder head and are secured in holes D in the box by flanged bushes D<1> and lock-nuts D<2>. Filling-caps E are arranged over the pins. The box may contain wick &c. which extends into the hollow pins. The receptacle is rectangular with semi-circular ends and is provided with cooling-fins C'.
Patent GB-1056489-A (GB)
Title: Improvements in and relating to highway markers and the like
IPC: E01F9/012
Filed: 1964-06-15
Abstract: 1,056,489. Traffic markers. SEMCO Ltd. March 10, 1965 [June 15, 1964], No. 24783/64. Heading E1G. A reflectorised traffic cone has a shaped sleeve of flexible, transparent material covering the reflector surface. The sleeve may be heat shrunk P.V.C. tucked into the hollow base of the cone.
Patent GB-151164-A (GB)
Title: Improvements in friction hoisting and lowering apparatus
IPC: B66D5/00
Filed: 1919-10-10
Abstract: 151,164. Woodfield, C.H. Oct. 10, 1919. Drum or barrel winding-machines; driving- gear; regulating and control-transmitting gear. - Comprises apparatus in which two friction band clutches, one of which may be used as a brake, are employed, one for hoisting and theother for lowering; the speed of lowering being further controlled by a centrifugal brake. The driving chain-wheel A is fixed on the shaft L carrying two loose pinions N, N', either of which may be clutched to the shaft by friction clutches comprising drums 0, C, encircled by bands D, operated by a common sliding member K keyed on the shaft L. The pinion N<1> drives the hoisting drum directly but the pinion N drives through an idle pinion, so reversing the direction of rotation of the drum. Thus, for hoisting the shaft L drives through the pinion N<1>, and for lowering, through the pinion N. When the clutch-operating member K is in its middle position, the shaft L is free from the winding' drum which is held by a brake operated in conjunction with the member K. A centrifugal brake is provided on the shaft Land comprises a fixed casing S, adapted to be engaged by an expanding ring T controlled by a weighted arm U sliding on a squared part of the shaft. When the speed becomes excessive, the arm U overcomes an adjustable spring V and wedge surfaces on the arm bear against and open the ends X of the ring T. In a modification the chainwheel A is fixed to the clutch drum C and the hoisting pinion N<1> is fast on the shaft L. The second drum 0 in this case is fixed and is used as a brake for lowering, no second gear train being provided.
Patent GB-412445-A (GB)
Title: Improvements in and relating to fuel injection pumps
IPC: F02M59/26
Filed: 1933-09-07
Abstract: 412,445. Fnel-injection-pumps. DAIMLERBENZ AKT.-GES., Untertiirkheim, Stuttgart, Germany. Sept. 7, 1933, No. 24799. Convention date, Sept. 10, 1932. [Class 102 (i).] In a fuel-injection pump of the type in which the plunger c is rotatable and is formed with a bore m which controls the suction port k, the upper edge l of the suction port is inclined, so that the port is closed at an earlier or later period in the forcing stroke by rotation of the plunger, thus regulating the discharge.
Patent GB-317406-A (GB)
Title: Improvements in or relating to lubricants and methods of making same
IPC: C10M171/00
Filed: 1929-08-15
Abstract: 317,406. Penniman, W. B. D. Aug. 15, 1928, [Convention date]. Lubricants for machinery are made by adding to a hydrocarbon distillate of viscosity below 135 seconds Saybolt at 100‹ F., such as petroleum, coal tar, or shale oil distillates, (1) a polar body, and, if desired, (2) a " mushiness " ingredient, which is stated to form a protecting layer on the primary lubricating layer formed by the polar body on the metal surfaces in contact, and (3) an antioxidant. As a polar body, higher fatty acids especially those containing an OH group, higher ketones or alcohols such as are made by the oxidation of petroleum, or organic sulphides such as are obtained by the treatment of petroleum with sulphur are used. When the presence of a. fatty acid is undesirable, substituted ammonia compounds, e.g. diphenylamine may be used alone or mixed with tallow oil. The mushiness ingredients are preferably soluble in the polar body but not in petroleum; saponifiable oils or fats or metallic soaps may be used. The properties of ingredients (1) and (2) may be combined in a single substance such as sulphonic acids contained in the residues from petroleum refining, or dyestuff intermediates e.g. naphthol sulphonic acids. The residue obtained by removing 75 per cent of the volatile ingredients of kerosene oil, having a viscosity of 40 secs. at 100‹ F. is mixed with 5 per cent by weight of a mixture of castor oil and oleic acid, and an antioxidant e.g. tetraethyl lead, hydroquinone, phenyl disulphide pyrogallol, an amine or amide, sulphur or the dyestuff malachite green is added. The castor oil may be replaced by soaps of the alkali or alkaline earth metals, zinc, copper, or lead, or by lard oil. Specifications 294.633, [Class 12 (i). Bearings &c.], 306,532, and 320,899 are referred to.
Patent GB-361414-A (GB)
Title: Improvements in or relating to apparatus for teaching flying and demonstrating the working of aeroplane controls
IPC: G09B9/12
Filed: 1930-08-21
Abstract: 361,414. Training aviators. WHITING, J. R. S., Brown Eaves, Beavers Hill, Farnham, Surrey, and LETCHER, T. C., The Vineries, Gurnard, Isle of Wight. Aug. 21, 1930, No. 25021. [Class 4.] For teaching pilots and demonstrating the working of aeroplane controls a man-carrying aeroplane or glider 2 is suspended on gimbals at its centre of gravity in a wind tunnel 1 with freedom to move vertically, and the wind tunnel motor 6' is controllable from the cockpit in order to vary the apparent air speed in imitation of conditions prevailing during actual flight. This air speed control may be operated in conjunction with the engine control of the aeroplane. The aeroplane support moves in vertical guides 8 and cables 9 may be attached to counterweights to familiarize the pilot with the behaviour of machines of different weights.
Patent GB-1535902-A (GB)
Title: Moisture sensing devices and their manufacture
IPC: G01N27/414
Filed: 1977-06-15
Abstract: 1535902 Integrated circuit with humidity sensor INTERNATIONAL BUSINESS MACHINES CORP 15 June 1977 [2 July 1976] 25029/77 Heading H1K A moisture sensing device comprises a region of porous silicon dioxide formed in or on the surface of a semi-conductor body and at least one electrode disposed on the region. As described the oxide is formed by anodically treating a portion of a silicon body to render it porous and then oxidizing, either thermally or anodically, e.g. in nitric acid or N-methylacetamide. A single electrode, e.g. of Al, Pt or Cr, may be provided with the body forming the other electrode of a capacitor, or interdigitated electrodes defining a resistor. The device may be mounted in a housing with a cover peppered with holes to admit the ambient. Arrangements are described comprising a device formed in an integrated circuit chip. The I.C. zone structure is first produced, the oxide region of the device and required isolating oxide then formed in masked areas as above described and the device electrodes and interconnection metallization finally provided by deposition and pattern etching.
Patent GB-1108920-A (GB)
Title: Aminoplast molding powder
IPC: C08K5/095
Filed: 1966-06-06
Abstract: A moulding powder comprises an aminoformaldehyde resin and a filler (e.g. a -cellulose) with from 0.1 to 1 part by wt. per 100 parts by wt. of the filled resin of a curing catalyst which is o-chlorobenzoic acid, o-bromobenzoic acid or 2,4-dichlorobenzoic acid.  The composition may also contain a pigment (e.g. TiO2) and an internal mould release agent or lubricant (e.g. zinc stearate). Methyl-p-toluene sulphonate or ethyl-p-toluene sulphonate may be used in conjunction with the catalysts of the invention. Examples relate to urea-formaldehyde and melamine-formaldehyde resins.
Patent GB-227190-A (GB)
Title: A new or improved rice cooker
IPC: A47J36/20
Filed: 1923-10-10
Abstract: 227,190. Irving, G. E. Oct. 10, 1923. Heating and cooking vessels. - A rice cooker comprises an inner perforated vessel 5 situated within an outer watercontaining vessel 1. The inner vessel has at its upper edge a flange 6 in which are formed slots 7 corresponding to vertical ribs 3 of D-section disposed on the inner wall of the outer vessel. When the inner vessel is in the lower position, as shown, the interengaging ribs and slots serve to prevent it from turning whilst the contents are being stirred. For steaming the rice, the inner vessel is raised and turned so that its flange rests on the tops of the ribs 3. A tight-fitting lid 4 is provided for the outer vessel.
Patent GB-379524-A (GB)
Title: Improvements in or relating to electric arc lamps
IPC: H05B31/00
Filed: 1931-09-09
Abstract: 379,524. Adjustable lamp supports. ROBINSON, F. W., 10, Seymour Grove, Old Trafford, Manchester. Sept. 9, 1931, No. 25270. [Class 75 (iii).] The reflector g of an arc lamp is carried on a stand consisting of a folded piece of metal d pivoted to a base a so that it can be secured at any angle within a V-shaped notch c by a nut e. Bolts h attached to the reflector pass between the halves of the piece d and are secured by nuts i, so that the lamp can be adjusted vertically.
Patent GB-1046926-A (GB)
Title: Process for drawing polypropylene yarn
IPC: D02J1/22
Filed: 1964-06-18
Abstract: 1,046,926. Drawing polypropylene yarn. HERCULES POWDER CO. June 18, 1964 [June 18, 1963], No. 25285/64. Heading B5B. Stereoregular (i.e. isotactic) polypropylene yarn is drawn between a heated feed roll (with which is associated an idler roll or guide bar spaced apart from and canted slightly with respect to the feed roll to prevent overlapping of yarn wraps on the feed roll) and a draw roll and heat is supplied to the yarn as it travels between the feed roll and its associated idler roll or guide bar (which may also be heated) to prevent any decrease in the temperature acquired by the yarn during its passage over and in contact with the feed roll. Heat may be supplied to the yarn as it travels between the feed roll and the idler roll or guide bar by slidably contacting the yarn with a smooth heated platen or by enclosing the feed roll and the idler roll or guide bar within a heated enclosure in which the temperature of the environment of the yarn is maintained at the same level as that of the feed roll. Alternatively heat may be supplied to the yarn by means of radiant heaters installed in the vicinity of, but out of contact with, the yarn as it travels between the feed roll and the idler roll or guide bar.
Patent GB-411718-A (GB)
Title: Improvements in and relating to the production of printing surfaces for multi-colour printing
IPC: G03F3/00
Filed: 1933-09-13
Abstract: 411,718. Printing -surfaces for multicolour printing. IRVINE, A., 301, Crooks Avenue, Paterson, New Jersey, U.S.A. Sept. 13, 1933, No. 25314. [Class 98 (ii).] The necessary spacing or " allowance " between the borders of adjacent areas of a printing-plate intended to print in different colours is obtained by the use of a superposed positive and negative of the design to be printed, slightly distanced from each other by the films carrying them, for photographically printing upon the sensitized surface by means of which the printing-plate is finally obtained. In Fig. 5 the sensitized surface C is arranged so as to be printed with an outline slightly reduced from the original size of the area 5 shown in Fig. 2 as drawn upon a transparent plate from which the negative A, shown in Fig. 5 as immediately in contact with sensitized surface C. is first printed and then used for obtaining the positive B, these two being cemented together and used as a photographic printing- plate, the light producing an outline 7, Fig. 6, slightly smaller than the area 5 of Fig. 2. In order to take the allowance from both areas, a combined positive A<1> and negative B<1>, Fig. 8, is produced from an outline original and used for photographically printing with the positive B<1> in contact with the sensitized surface so as to obtain two slightly separated outlines as shown at 10 in Fig. 9.
Patent GB-213509-A (GB)
Title: Improvements in looper thread controllers for sewing machines
IPC: D05B61/00
Filed: 1923-10-12
Abstract: 213,509. Armstrong, J. J. V., (Union Special Machine Co.). Oct. 12, 1923. Chain-stitching; governing under-thread.- A looper-thread controlling-arm 10 is directly actuated through a link 13 from an arm 14 of the looper-support. The looper-thread i, which passes through a stationary eye 17 and an eye 16 on the arm 10 to the looper 5, is taken up during the forward movement of the looper till it begins to enter the needle-thread loop, the link 13 and the arm 14 then being in alignment; is given out during the remainder of the forward movement, and is taken up and given out in turn during the return stroke. An arm on the loopersupport is link-connected to an actuating arm 7, Fig. 1, in such a way that the link 6 and the lever 7 are in alignment at the end of the forward stroke, the looper and the arm 10 thus being given a decided dwell.
Patent GB-1220367-A (GB)
Title: Improvements in etching silicon dioxide by direct photolysis
IPC: C04B41/53
Filed: 1968-05-28
Abstract: 1,220,367. Etching. GENERAL ELECTRIC CO. 28 May, 1968 [29 May, 1967], No. 25429/68. Addition to 1,220,365. Heading B6J. A silicon dioxide surface is etched by contacting with a solid film of an organic polymeric material containing trityldifluoroamine or fluoranil to form an interface therebetween and exposing the interface to activating radiation in the presence of moisture. The polymeric material may be polystyrene, alcohol soluble butyrate resin or hydroxylated polymeric resin. The interface may be exposed through a metal mask.
Patent GB-187211-A (GB)
Title: Improvements in or relating to high-tension coils composed of round-section wire
IPC: H01F27/32
Filed: 1922-09-20
Abstract: 187,211. Akt.-Ges. Brown, Boveri, et Cie. Oct. 11, 1921, [Convention date]. Transformers.- In a high-tension coil composed of round-section wire bearing at points of its periphery against a support or supports, such as the spacing members a, or against an adjacent coil or coils, the wedge-shaped spaces d between the turns of the coil at the bearing points are filled in with an insulating-material that hardens on drying or cooling. The transformer coil shown contains two layers of insulated wire spaced apart by insulators band held together by a cord binding c with the interposition of the spacing members a. An intermediate layer of insulating material may be arranged between the turns of each layer of wire.
Patent GB-625098-A (GB)
Title: Improvements in or relating to the production of trifluoroacetic acid
IPC: C07C51/16
Filed: 1945-10-01
Abstract: Trifluoroacetic acid is prepared by reacting m-aminobenzotrifluoride with a permanganate of an alkali or alkaline earth metal dissolved in aqueous acetic and/or trifluoroacetic acid, preferably containing 35-45 per cent by weight of water.  The use of aqueous trifluoroacetic acid is preferred since recovery of the product is thereby simplified. The preferred temperature is 80-100 DEG  C. Permanganates instanced are those of potassium and barium.  The acid is isolated as an alkali metal salt and obtained therefrom by, e.g. steam distillation from an acid medium.  In an example m-aminobenzotrifluoride in aqueous acetic acid is heated under reflux at 80-90 DEG  C. and solid potassium permanganate added in small portions, the reaction product is diluted with water, made alkaline with caustic soda, and boiled with additional potassium permanganate to remove impurities, trifluoroacetic acid being recovered as its potassium salt from the mixed acetates and trifluoroacetates obtained after the removal of the impurities.
Patent GB-584235-A (GB)
Title: Improvements relating to liquid fuel pumps
IPC: F04B1/20
Filed: 1944-12-20
Abstract: 584,235. Removing air from reciprocating pumps. LUCAS, Ltd., J., and IFIELD, R. J. Dec. 20, 1944, No. 25575. [Class 102 (i)] A liquid fuel pump is provided with two venting passages arranged so that the passages communicate with the uppermost region of the pump interior when the pump is mounted in either of two different service positions. The hollow plug e which also serves as a swash plate trunnion has two vent holes n, o which communicate with passages p, q respectively the latter being formed by grooves in the end face of the trunnion e. A seating piece g covers the end of the trunnion e and houses a non-return valve i, When the pump is mounted with its axis vertical entrapped air may be discharged via passage p and hole n by removing a cap h on the seating piece g and opening the valve manually. A supplementary closure member m is provided. The seating piece g with valve i, cap h and spring k may be secured to either trunnion.
Patent GB-1337441-A (GB)
Title: Manufacture of copolymers of s-alkenyl-2-aminoethylthioethers
IPC: C08F28/00
Filed: 1971-04-19
Abstract: 1337441 Copolymers of S-alkenyl-2-aminoethyl thioethers BADISCHE ANILIN- & SODAFABRIK AG 19 April 1971 [1 April 1970] 25705/71 Heading C3P A copolymer is prepared by copolymerizing an olefinically unsaturated thioether of the formula  in which R<SP>1</SP> denotes hydrogen or methyl, X denotes an N-morpholino radical, an unsubstituted amino group or an amino group substituted by one or more of the same or different alkyl, hydroxyalkyl, alkoxyalkyl, cycloalkyl, aryl, alkaryl, or alkoxyaryl radicals each of from 1 to 12 carbon atoms, and a copolymerizable olefinically unsaturated monomer containing a CH 2 =CH- group in the presence of a freeradical-generating initiator in bulk or in the presence of a solvent or diluent. In the examples 2 - (N - # - hydroxyethyl) - aminoethyl - S- vinyl - thioether, ethyl acrylate, 2 - (N - morpholino) - ethyl - S - vinylthioether, styrene, butadiene, n-butyl acrylate, #-N-diethylaminoethyl - S - vinyl thioether and 2 - ethylhexyl acrylate are copolymerized in the presence of ethanol, azo-diisobutyronitrile, n-lauryl sulphate, water and potassium persulphate.