baber/WOPTO huggingface dataset:
Patent GB-924624-A (GB)
Title: Block polyesters and process for producing same
IPC: C08G63/52
Filed: 1959-06-10
Abstract: A process for the preparation of substantially linear high molecular weight unsaturated polyesters with controlled molecular configuration comprises reacting, at a temperature of from 150 DEG  to 250 DEG C., a high molecular weight linear condensation polyester free from nonbenzenoid unsaturation, the moleculed chains of which are terminated with hydroxyl and/or carboxyl groups, with a monoglycol ester of an a ,b -monoethylenically unsaturated dicarboxylic acid, a bisglycol ester of an a ,b -monoethylenically unsaturated dicarboxylic acid, or a polyester formed by the reaction of a glycol, or a mixture of glycols, with at least one a ,b -monoethylenically unsaturated dicarboxylic acid and the molecule chains of which polyester are terminated with hydroxyl and/or carboxyl groups.  The polyesters obtained can be used in combination with monoethylenically unsaturated monomers for the production of cross-linked thermoset resins.  The molecular weight of the saturated polyesters may be from about 1,000 to about 10,000 and is preferably from about 2,000 to 5,000 and that of the unsaturated polyester, from 300 to 4,000.  The weights of unsaturated and saturated polyesters are typically used in relative amounts between 2:98 and 70:30.  Values of the ratio of the number of terminal hydroxyl groups to terminal carboxyl groups in each from about 0,8:1 to about 1:0,8 are referred to.  Lists are given of suitable saturated and unsaturated acids and of glycols. The latter include those obtained from olefins through the "oxo" reaction.  Formation of the saturated polyester can be catalysed by zinc chloride, sodium acid sulphate, toluenesulphonic acid, tetrabutyl titanate, sulphuric acid, sodium methoxide, and zinc dust. Reaction between the polyesters is carried out in the presence of an esterification catalyst such as zinc chloride.  Suitable monoethylenically unsaturated monomers for use with the unsaturated polyesters include methyl methacrylate, methyl acrylate, ethyl acrylate, ethyl ethacrylate, styrene, methylstyrene, vinyl toluene, vinyl naphthalene, and diallyl phthalate.  Into the polyestermonomer mixtures can be incorporated catalysts, fillers, pigments, dyes, reinforcing fibres such as glass, asbestos, sisal, and nylon.  In typical examples (2) hydroxyethyl acid maleate is reacted with poly(ethylene adipate) in the presence of zinc chloride the temperature being raised to 200 DEG C. and vacuum then being applied. The product is blended with styrene.  Films are prepared from the mixture by (7) adding a dispersion of benzoyl peroxide in tricresyl phosphate and t-butyl perbenzoate, and curing at 70 DEG  to 120 DEG C. or (8) adding cobalt naphthenate and methyl ethyl ketone peroxide in dimethyl phthalate and curing at room temperature; (11) poly(propylene phthalate) and hydroxypropyl acid maleate are reacted in the presence of zinc chloride and the mixture is blended with styrene.  Specification 755,321 is referred to.
Patent GB-697698-A (GB)
Title: New thioethers and process for the preparation thereof
IPC: C07D213/82
Filed: 1951-08-23
Abstract: The invention comprises compounds of the formula <FORM:0697698/IV (b)/1> in which R1 and R2 are hydrogen aroms, halogen atoms, hydroxy- or alkoxy groups, X is a hydrogen atom, a cyano-, an aminomethyl-, ureidomethyl-, nicotinylaminomethyl group-, a hydroxymethyl-, an acetoxymethyl-, or an acyl group and R3 denotes alkyl radicals containing a maximum of 6 carbon atoms, R4 is an alkyl or aralkyl radical containing a maximum of 7 carbon atoms and n denotes the integers 1 or 2 and their preparation in which a compound of the formula <FORM:0697698/IV (b)/2> wherein U is a cyano- or acyl radical and Z is a hydrogen atom or an alkali metal atom is heated with a compound of the formula R4-S-(CH2)n-Y wherein Y is a halogen atom, or a compound of the formula <FORM:0697698/IV (b)/3> is heated with a compound of the formula <FORM:0697698/IV (b)/4> wherein R3 and S have the significance mentioned above and in either case the cyano residue U in the reaction product is subsequently as the case may be either converted by reduction into the aminomethyl residue and the latter in its turn into nicotinylaminomethyl residue or into the ureidomethyl residue, or said aminomethyl residue is converted by diazotization and acetylation into the acetoxymethyl residue, or is converted by reaction with sodamide into the hydrogen atom, or is converted by reaction with an alkyl magnesium halide into an acyl residue, and the tertiary amino groups of basic side chains are converted into a quaternary ammonium group by reaction with an alkyl halide.
Patent GB-360908-A (GB)
Title: Improvements in and relating to the manufacture of mixed fertilisers
IPC: C05C1/02
Filed: 1930-07-01
Abstract: The caking of fertilizers containing a proportion of ammonium nitrate, e.g. a mixture of ammonium nitrate and ammonium sulphate is prevented by the incorporation of a hygroscopic salt (other than ammonium nitrate), e.g. calcium nitrate, calcium chloride or iron nitrate in the proportion of 10-30 per cent of the initial mixture. Other fertilizing salts, e.g. potassium and phosphorus containing materials may also be added.  Specification 316,664, [Class 111, Sewage &c.], is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) states that a quantity of hygroscopic salt preferably in the proportion of 10-30 per cent of the mixture is used.
Patent GB-754368-A (GB)
Title: Improvements in or relating to methods of applying light-diffusing layers to glass surfaces
IPC: H01K3/00
Filed: 1954-07-08
Abstract: 754,368. Electric incandescent lamps. PHILIPS ELECTRICAL INDUSTRIES, Ltd. July 8, 1954 [July 9, 1953], No. 20009/54. Class 39(2). [Also in Group XV] In order to improve the adhesion of a lightdiffusing coating produced upon a glass surface, such as the interior surface of a lamp bulb, by burning magnesium or magnesium alloys whereby finely divided magnesium oxide is deposited, the glass surface is treated with gaseous oxidation products of sulphur, either during or prior to the deposition of the magnesium oxide. Preferably the treatment with the gaseous oxidation products of sulphur is carried out simultaneously with the application of the magnesium oxide, since the temperatures are then sufficient to ensure the reaction of the oxidation products with the glass surface. When the sulphur is burned in the bulb beforehand it may be necessary to heat the glass to a temperature exceeding 150‹C. during, or for some time after, that treatment in order to obtain the desired action upon the glass. Satisfactory adhesion may be obtained by burning 10 mgs. of solid sulphur within a bulb having a surface area of about 100 square centimetres. Alternatively the combustion products of sulphur compounds may be used, e.g. hydrogen sulphide, carbon disulphide, &c. The magnesium oxide may be applied to the glass surface by burning alloys of magnesium with other metals, e.g. lithium, aluminium, silicon, &c., relative compositions of which are given in the Specification. The magnesium or magnesium alloy, and the substances that produce oxidation products of sulphur by burning, may be burnt in a container of quartz, tungsten, tantalum or similar refractory materials within the bulb and the heat for combustion initiated by a filament, carbon arc, high frequency heating, or, as shown in Fig. 1, by passing current through a metal container 7 in which the materials are placed. The neck of the inverted bulb 3 is fitted upon a holder 2 on a stand 1, and the container 7, which is made of tungsten and supported upon two insulated current-supply conductors 5, 6, is introduced through the aperture in the holder 2. A supply of oxygen and/or air for combustion is fed through a tube 4 located between the conductors 5, 6. Alternatively a supply of sulphur dioxide or other gases which yield oxidation products of sulphur may be fed through the tube 4.
Patent GB-228463-A (GB)
Title: A device for removing the roots of corns
IPC: A61B17/54
Filed: 1924-08-25
Abstract: 228,463. Johnson, J. C. H., and Johnson, R. Aug. 25, 1924. Corns., treatment of; cupping- appliances. - A suction device for removing corns consists of a syringe 1, the nozzle 2 of which is fitted with a rubber tube 3 adapted to fit over and grip the corn. The bore of the tube 3 is smaller in diameter at the point where it is united to the syringe and the tube is held in position by an enlargement 4 on the nozzle of the syringe.
Patent GB-1603995-A (GB)
Title: Hydroelectric machine set
IPC: F03B3/10
Filed: 1978-05-17
Abstract: The generating set has an electrical machine with a rotor (2) and a Francis water turbine. It has a rotating unit, which is essentially formed by the rotor (2) of the electrical machine and the wheel (4) of the Francis water turbine. This rotating unit (2, 8, 4) is supported both in the circumferential area of the rotor (2) or its retaining ring (2') and in the circumferential area of the wheel (4), in each case by means of a ring of hydrostatic radial bearings (6, 7). Due to the fact that the rotating unit is supported where the greatest masses are located and where the operating forces occur, stable operation of the generating set is possible even where this is of large dimensions. <IMAGE>
Patent GB-923753-A (GB)
Title: Improvements in or relating to cigar machines
IPC: A24C1/04
Filed: 1959-06-12
Abstract: 923,753. Cigar-making machines. INTERNATIONAL CIGAR MACHINERY CO. June 12, 1959 [June 26, 1958], No. 20267/59. Class 130. [Also in Group XVI] Portions of a continuous tobacco web W, Fig. 1, are severed by a knife 128 on a table 66 and transported by a reciprocating suction head 80 to a cutting station 218 where cigar wrappers or binders are cut out, the head 80 being pivoted at 86 and guided by an adjustable guide track 118 so that the angular relation of the severed web portion to the cutting bed may be varied. The leading portion of the web is fed forwardly by rollers 12, 14, operated through a one-way ratchet by a rack 16, Fig. 2, reciprocated by a cam-operated lever 56. Simultaneously a second rack 104 actuates gear-wheel 100 to move the suction head 80, which is carried by a guide member 88 sliding on guide rods 90, forward slightly faster than the web feed to carry the previously severed web portion into position over a cutting bed 214 of a rotatable cutting station 218. The guide track 118, in which is engaged a follower 114 attached to the pivoted head 80, is adjustable about a pivot 122 to vary the amount of tilt given to the head as it approaches the cutting table 218. A slide valve 186 is operated through a link 184 from cam 172 to cut off suction to the head 80 and simultaneously apply it to the cutting bed 214 to hold the severed portion thereon and to a suction box 68 below table 66 to hold the leading end of the web. The table 218 then rotates 180 degrees to move the die 214 opposite cutting out rollers 224 and the die 216 into position to receive the next severed web portion from the head 80; simultaneously the knife 128 is operated and the lead 80 is returned to its initial position. The rollers 224 are reciprocated. Specifications 460,712, 809,261 and 810,676 are referred to.
Patent GB-501201-A (GB)
Title: Means for detecting ice forming conditions encountered by aircraft
IPC: B64D15/20
Filed: 1937-07-22
Abstract: 501,201. Indicating the presence and preventing the accumulation of ice on aircraft surfaces. LANGLEY, T. W., and TECALEMIT, Ltd. July 22, 1937, No. 20336. [Class 4] [Also in Group XX] Means for detecting ice-forming conditions include a member adapted to be moved so that a part of it passes successively an exposed position where ice car form on the member and a position where the formation of ice can be detected. As shown, a hollow drum 12 projects through packing 13 in a casing 10 made of insulating-material and mounted within the leading edge of an aircraft wing. The drum is mounted on a shaft 14 journalled in the casing and carrying a worm-whee 17. A vaned rotor 24 is mounted on a shaft 23 and journalled, in a casing 19 secured to the casing 10 and provided with an air inlet jet 33 adapted to direct air onto the disc when air is exhaustec from the casing 19 by; e.g. a connectior to a Venturi tube. The rotor drives the drum through a worm 23, worm-wheel 28, a worm 30 and the wheel 17. A pair of levers 35, 36 made of insulating material carry contacts 38, 39 and are spring-pressed on to the drum 12 to complete an electric circuit therethrough. The contacts are connected in an electric circuit which includes a visual or audible warning device and either or both servo device foi setting de-icing equipment in operation. Ice forming on the exposed portion of the drum breaks, due to rotation of the drum, the circuit giving an indication to the pilot that iceforming conditions are present. In a modification, the circuit is normally open and is closed due to the presence of ice on the drum. A single contact lever, adapted to engage a fixed contact, may be used and the drum may be driven by an air-screw. The casing 10 is provided with a drain 45 and may have a connection 46 to a region of reduced air pressure on the upper surface of the wing.
Patent GB-1017647-A (GB)
Title: Mixtures of carbon dioxide and hydrogen
Inventor: HOLMES PETER DESMOND
IPC: C01B3/22
Filed: 1963-05-22
Abstract: Mixtures containing carbon dioxide and hydrogen are produced by passing aqueous methanol at 150 DEG  to 400 DEG  C. and subatmospheric, atmospheric or superatmospheric pressure over a catalyst formed by reacting zinc oxide with chromic acid and drying the resultant product.  The methanol liquid space velocity may be 0.5 to 2.0 vol./vol./hr.  The chromic acid may be anhydrous, hydrated, or in aqueous solution and may be formed say by dissolving chromium trioxide in water.  Copper or copper compounds, e.g. the sulphate, nitrate, carbonate, oxide and hydroxide may be contained in the chromic acid in solution or suspension. The chromic acid may be slurried with powdered zinc oxide and the mixture dried, e.g. at 110 DEG  C., and calcined in air at 150 DEG  to 500 DEG  C.  The catalyst may be pelleted, e.g. with 2% lubricant, crushed, sieved to say 6-12 mesh B.S.S. and then calcined, or used directly after drying, crushing and sieving.  The ratio of zinc: copper and zinc: chzomium in the catalyst may be 100: 1 to 2: 1 and 10: 1 to 1: 1 respectively. The conversion may take place in a once through continuous flow reactor, and the catalyst may be preheated in the zeactor to e.g. 120 DEG  C. in a slow stream of nitrogen.ALSO:An oxidation catalyst is produced by reacting zinc oxide with chromic acid and drying the resulting product.  The chromic acid may be anhydrous, hydrated or in aqueous solution and may be formed by dissolving chromium trioxide in water.  Copper or copper compounds e.g. sulphate, nitrate, carbonate, oxide and hydroxide may be contained in the chromic acid in solution or suspension. The chromic acid may be slurried with powdered zinc oxide and the mixture dried say at 110  DEG C. and calcined in air at 150-500  DEG C. The catalyst may be pelleted, crushed, sieved and then calcined; or used directly after drying, crushing and sieving. The rati of zinc : copper and zinc : chromium in the catalyst may be 100 : 1 to 2 : 1 and 10 : 1 to 1 : 1 respectively.
Patent GB-387927-A (GB)
Title: Improvements in and connected with foldable supports or rests for books and for other purposes
IPC: A47B19/04
Filed: 1932-07-19
Abstract: 387,927. Folding-brackets. HOGGER, P. C., 7, Cambridge Gardens, Kilburn, and HOBBS, H. C., Kent House, Regent Street, London. July 19, 1932, No. 20417. [Class 52 (v).] A foldable support or bracket for a book, newspaper, &c. comprises a board or frame 1, Figs. 1 and 2, on which is mounted by pegs 3 a wire spring clip 2 for securing a book, such as a telephone directory, in position. The board can be swung from a vertical to a horizontal position about a transverse axis constituted by a pair of coaxial pivots 4 arranged at a short distance from the point of balance of the board. The pivots 4 engage a pair of links 5 pivoted at their opposite ends to a vertical L-shaped bar 7 secured to a wall or other upright 8. To maintain the board in its horizontal position a pair of links 10 is provided the links being pivoted to the bar 7 and to pins 11 in rear of the pivots 4. These links act as braces, their upper ends being cut at an angle to abut against the lower edges of the links 5. In a modification as used for two books or directories, the pairs of links support a metal bar frame 15, Figs. 8 and 9, to which is pivoted a pair of boards la each with a spring clip 2a for holding a book. The boards 1a are pivoted to the frame 15 so that the one not required may be moved out of the way. A ledge 17 on each board forms a rest for the book when the frame is in its vertical position, and a T-shaped bar 16 holds the books with the frame in the horizontal position.
Patent GB-800026-A (GB)
Title: Improvements in and relating to picture projectors
Inventor: BOWEN ARTHUR
IPC: G03B33/00
Filed: 1956-07-02
Abstract: 800,026. Focusing aid for picture projectors. BRITISH THOMSON-HOUSTON CO., Ltd. July 2, 1956, No. 20420/56. Drawings to Specification. Class 97(1) A focusing aid comprises a two-colour filter, which is mounted on an optical or kinematograph projector so that it can be introduced at will into the light path. Preferably the filter is divided horizontally, the two colours being complementary. The filter may be annular in shape and mounted on the lens mask described in co-pending Specification 800,025.
Patent GB-856088-A (GB)
Title: Method and means for the transportation of liquefied natural gas
IPC: F17C13/12
Filed: 1959-06-15
Abstract: 856,088. Storing liquefied gases. CONCH INTERNATIONAL METHANE Ltd., [formerly CONSTOCK INTERNATIONAL METHANE Ltd.], June 15, 1959 [June 25, 1958], No. 20485/59. Drawings to Specification. Class 8(2). Loss by vaporization of liquefied natural hydrocarbon gas comprising mostly methane during storage and transport at substantially atmospheric pressure is minimized by admixing with about 10% of a second liquefied gas of lower boiling point e.g. nitrogen. The preferentially vaporized nitrogen provides an inert gas phase and the temperature of the container after being emptied is maintained low by the introduction therein of a small change of liquid nitrogen.
Patent GB-1199517-A (GB)
Title: Improvements to Fins for Underwater Swimmers or Free Divers.
Inventor: MOGRIDGE MARTIN JOHN HENRY
IPC: A63B31/11
Filed: 1968-05-01
Abstract: 1,199,517. Swimming fins. M. J. H. MOGRIDGE. 30 April, 1969 [1 May, 1968], No. 20542/68. Heading A6D. A swimming fin 1 has its main structural support 2, 3 attached to a seating 7 which is moulded to conform to the shape of the lower legs 8, and which in use holds the legs together side by side. The seating may be held in place by conforming to the shape of the leg muscles, or may be positively fastened either with loops around the legs or by the lower part of a skin diving suit which completely encloses the seating and lower legs. A second seating may be provided in which to place the feet.
Patent GB-125908-A (GB)
Title: Apparatus for use in Imparting Instruction in Reading Morse Code or the like as Received by Wireless.
IPC: G09B19/26
Filed: 1918-12-10
Abstract: 125,908. Koran, G. H. J., and Gamage, Ltd., A. W. Dec. 10, 1918 Transformers; regu. lating.-In a transformer used for teaching the reading of wireless morse code signals, the secondary 8, provided with a short iron core 9. is located within the primary coil at one end. The primary 1 is wound from the end 3 to the point 6, and is there given a few turns 7 in the opposite direction in order to obtain a zero value of the primary inductance. The contacts 11, sliding on parallel bars 10, serve to connect separate circuits to various points on the primary.
Patent GB-513409-A (GB)
Title: Improvements in or relating to electrical signalling systems
IPC: H02H1/00
Filed: 1938-02-09
Abstract: 513,409. Signal transmission systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., and TERRONI, T. B. D. Feb. 9, 1938, No. 20590/39. Divided out of 511,136. Drawings to Specification. [Class 40 (iv)] [Also in Groups XXXVII and XL] The description is identical with that of Specification 511,136, but the claims differ. Specification 493,375 also is referred to.
Patent GB-1378564-A (GB)
Title: Business card index
IPC: B42F17/00
Filed: 1973-04-19
Abstract: 1378564 Filing papers M MYERS & SONS Ltd 19 April 1973 [3 May 1972] 20681/72 Heading B6E A business card index comprises a plurality of carrier cards 10 together with a container therefor, each carrier card having an adhesive patch 12 on one face to which a business card can be attached. The container has a transluscen t hinged lid 14, spacers 13 and a ribbed floor 18. The adhesive patch on each card may be moisture-activated gum or two-sided adhesive tape with a protective strip.
Patent GB-1428492-A (GB)
Title: Apparauts and process for manufacturing polyvinyl acetal porous material
IPC: B29C44/00
Filed: 1973-05-01
Abstract: 1428492 Controlling reaction by heating KANEBO LTD 1 May 1973 [17 June 1972] 20711/73 Heading B1X [Also in Divisions B8 and C3] An apparatus for continuously manufacturing polyvinyl acetal porous material comprises, as shown in Figs. 1 and 2, a conveyor chain 4, a plurality of U-shaped unit members 3 forming a reaction through 8 at a portion of the closed path, each member having a horizontal bottom part 9 are made of an insulating bottom part 9 and a pair of vertical side walls 10. 9 and 10 are made of an insulating material and parts 10 are provided with pairs of electrodes 11. A plurality of brushes 23 are arranged above electrodes 11 and are fastened to a support member 24 through a holder 25 member 24 is connected to an electric source (not shown) to apply a voltage. As liquid reaction material is fed through conduit 6 along trough 8, it is heated while the electrodes of the unit member carrying it help contact with brush 11. Suitable circuits are illustrated in Figs. 6 and 7 (not shown) and a pre-heating device for the reaction material is illustrated in Figs. 9, 10A and 10B (not shown). The apparatus may also comprise an endless belt of polar material arranged so that its lower surface is brought into contact with the upper surface of the reaction material in trough 8 and circulated around supporting rollers. The apparatus may also comprise means for showering an aftertreating liquid on to the material leaving the trough 8, an aftertreating bath disposed downstream of said trough and/or washing means placed downstream of the trough.
Patent GB-499822-A (GB)
Title: Improvements relating to telephone systems
IPC: H04Q3/00
Filed: 1937-07-27
Abstract: 499,822. Semi - automatic exchange systems. SIEMENS BROS. & CO., Ltd., and HUMPHRIES, H. E. July 27, 1937, No. 20725. [Class 40 (iv)] In a system in which outgoing calls from a manual exchange are set up automatically by the operator, A.C. of a frequency different from the ringing frequency is employed for dialling, and the A.C. source is connected to the cord circuit by operation of the ringing key RK, ringing current being disconnected therefrom by relay C which is energized when the dial D is off-normal. The impulses are repeated by relay A which is connected to the impulse springs by relay C. The recall key RCK also connects up relay C to apply A.C. to the junction as long as the. key is pressed. Two outgoing junction circuits, Figs. 2, 3 (not shown), are described which are in the main similar to those shown in Figs. 3, 11 of Specification 499,821, the differences lying in the absence of a separate dialling jack DJ and impulse repeating relay A and in the provision of an additional relay (FA) which is operated from the local signal receiver when-the recall signal is sent and which serves to connect up relay F.