baber/WOPTO huggingface dataset:
Patent GB-266467-A (GB)
Title: Improved propulsion device for aircraft and navigating craft
IPC: B64C11/00
Filed: 1925-11-28
Abstract: 266,467. Honacker, I. van. Nov. 28, 1925. Endless-band propellers are provided with weights 6 on the vanes to assist them to take up an oblique position during the working part of the stroke.
Patent GB-1468050-A (GB)
Title: Bis-triazino-benzimidazoles and their preparation
IPC: C07D519/00
Filed: 1974-07-08
Abstract: 1468050 Triazinobenzimidazole derivatives HOECHST AG 8 July 1974 [11 July 1973] 30244/74 Heading C2C The invention comprises compounds of formula wherein R 1  is C 2-16  alkylene, methylenebis-(pcyclohexylene) m- or p-C 6 H 4 (CH 2 ) 2  or piperazine- 1,4-bis-(C 2-4  alkylene); R 2  is C 1-4  alkyl; R 3  and M 5  are each H or halogen; R 4  is H, halogen, PhS, PhO, EtO, Me or CN; and X is O or S. These compounds are prepared by reacting the corresponding alkyl benzimidazoyl-carbonate or -thiocarbonate with R 1 (NH 2 ) 2  and CH 2 O. Pharmaceutical and veterinary compositions comprise compounds of the above formula, which have anti-nematode and anthelmintic activity, and may be administered orally or parenterally. Fungicidal compositions useful for the protection of (e.g.) growing plants, stored fruit and vegetables, textiles, wood, dyestuffs and paints, may also be formulated from the above compounds.
Patent GB-918162-A (GB)
Title: Device for use in conjunction with conveyor belts and the like
Inventor: RUTHERFORD ALEXANDER
IPC: F16H7/08
Filed: 1961-08-22
Abstract: 918,162. Tensioning belts. MACALISTERS Ltd. Aug. 22, 1961, No. 30272/61. Class 80 (1). [Also in Group XXX] An automatic belt-tensioning arrangement comprises gripping pulleys 9, 10 mounted on a rockable member 14 adjacent to the periphery of a driving pulley 4. The rockable member is pivoted about the axis 7 of the driving pulley and may comprise a pair of substantially triangular plate 14 (Fig. 1) or pairs of arms 22, 23 pivoted on an arm 19 rotatable about the driving pulley axis 7 (Fig. 6). Increased tension in the belt 1 due to rotation of the driving pulley 4, or breakage of the belt 1, causes the rockable member to swing clockwise to increase the tension in the belt, or take up the slack, and increase the frictional force between the belt and the pulley 4. The invention may be applied to transmission or conveyer belts or to ropeways.
Patent GB-672630-A (GB)
Title: Process for the chlorination of naphthalene
Inventor: ROESSLER RUDOLF
IPC: C07C17/12
Filed: 1950-12-11
Abstract: Naphthalene is chlorinated to monochloronaphthalene by means of a chlorinating agent which contains the gas product obtained from the destructive chlorination of monochloronaphthalene with chlorine. Thus, liquid or gaseous naphthalene is mixed with a chlorinating agent containing 1 mol. of active chlorine per mol. of naphthalene and passed through a column to form monochloronaphthalene (chiefly a -).  A portion of the latter is removed and further chlorinated to octachloronaphthalene, perchlorindene and perchlorhydrindene.  After optional removal of the carbon tetrachloride also formed, the product is recycled and mixed with the requisite amount of chlorine.  The naphthalene may be chlorinated in the liquid phase at 100-200 DEG  C. or the vapour phase at 210-250 DEG  C., with or without a catalyst, e.g. chlorides of iron and aluminium or iron with iodine.  Suitable apparatus is shown in schematic form.  Examples are given showing yield figures, with the aid of graphs.
Patent GB-914918-A (GB)
Title: Process for the recovery of mercury from brines
IPC: C22B43/00
Filed: 1960-09-02
Abstract: Mercury is recovered from brines containing mercury in the form of soluble salts, preferably the chloride, by passing the brine over and through a strongly basic anion exchange resin and recovering the mercury from the resin by treating with an excess of an aqueous sulphide solution, for example sodium, potassium, lithium caesium, rubidium, ammonium or hydrogen sulphide, which preferably is from 1/20 to 3N, and is preferably employed in an excess of 100 to 400% over that theoretically required.  The brine may derive from mercury cathode electrolytic cells.  The resins employed are preferably those containing quaternary ammonium groups, especially those whose recurring units have a structure of one of the following types. <FORM:0914918/III/1> <FORM:0914918/III/2> where X is any negatively charged atom or radical, for example OH-, Cl-, Br-, 1-, NO3-.  The mercury may be recovered from the sulphide solution by conventional means.
Patent GB-743619-A (GB)
Title: Improvements in or relating to life-jackets
Inventor: NICHOLL GEORGE WILLIAM ROBERT
IPC: B63C9/125
Filed: 1953-11-03
Abstract: 743,619. Inflatable life-jackets. ELLIOT EQUIPMENT, Ltd. Nov. 19, 1954 [Nov: 3, 1953], No. 30363/53. Class 77 A life-jacket of the kind having inflatable chest chamber and collar comprises a piece of pliable, partially transparent material secured to one part of the jacket and adapted to be detachably secured to another part, the arrangement being such that when the jacket is in use and the material is secured to both parts it extends over the wearer's face and acts as a shield against water. A piece of hood-forming material 3 carrying a piece of pliable transparent waterproof material 4 is attached to the rear part of the collar 2 of the lifejacket shown. The material 4 is detachably secured to the chest chamber 1 of the jacket by snap-on fasteners 6 each engaging a stud on the chamber. When not in use the material 4 hangs down the wearer's back.
Patent GB-988515-A (GB)
Title: Improvements in or relating to electric arc furnaces
IPC: H05B7/00
Filed: 1961-08-23
Abstract: 988, 515. Measuring electrically. W.C. HERAEUS G.m.b.H. Aug. 23, 1961 [Aug. 23, 1960], No. 30431/61. Heading G1N. The position of an electrode in an electric arc furnace is determined by linking it to the slider of a potentiometer in an automatically balanced bridge circuit, the rebalancing motor driving a pointer indicating the position of the electrode, whilst a voltmeter across the motor armature indicates the speed of travel.
Patent GB-192806-A (GB)
Title: Improvements relating to voltage regulating systems
IPC: H02M7/06
Filed: 1921-11-15
Abstract: 192,806. Cachemaille, A. S., (Westing- house Lamp Co.). Nov. 15, 1921. Regulation, automatic systems and apparatus for; systems depending on the use of static transformers.-The voltage of an alternating-current load circuit is regulated or the percentage voltage variactions of the load circuit increased over that in the supply circuit by means of a boosting transformer operating in conjunction with an electron discharge device or devices. The load circuit 6, 6, Fig. 1, is fed from a supply circuit 5. 5<1> through a transformer 9. The secondary winding 11 of the transformer 9 is connected to the filaments 15 of two electron discharge devices 13, 14, through an adjustable resistance 17 so that variations of voltage of the supply circuit 5, 5<1> vary the temperatures of the filaments 15. The secondary winding 12 of the transformer 9 is connected in series with the secondary winding 21 of a transformer 20 across the load circuit 6, 6. The primary windings 18, 19 of the transformer 20 are connected in series with the devices 13, 14 respectively and in accordance with the connections of the winding 21 the variations of voltage induced in this winding are arranged to assist or oppose those induced in the winding 12 in accordance with the variations of plate currents of the devices 13 and 14. In the modification shown in Fig. 2, an electron discharge device with one filament 28 and two plates 29, 30 is employed.
Patent GB-1435108-A (GB)
Title: Electrophotographic copying apparatus
IPC: B65G65/42
Filed: 1973-06-27
Abstract: 1435108 Endless conveyer for electrophotographic developing material HOECHST AG 27 June 1973 [30 June 1972] 30542/73 Heading B8A [Also in Division G2] A conveyer for a cascade development apparatus comprises an endless belt 13 having laterally projecting flanges 14 for picking up developer 9; a member (e.g. a fixed plate or as shown a movable belt 24) contacting the edges of the flanges 14 as they move upwards in order to prevent developer spilling over the edges. The belt and flanges are preferably formed integrally of plastics with steel wires reinforcing the belt.
Patent GB-1388648-A (GB)
Title: Apparatus for automatic electric arc welding
IPC: B23K9/12
Filed: 1973-06-27
Abstract: 1388648 Arc welding apparatus ESAB Ltd 27 June 1973 [30 June 1972] 30544/73 Heading B3R In an apparatus for automatic electric arc welding with a welding wire 1 having a substantially circular cross-section, a contact device 26 feeds welding current to the wire and a wire advancing mechanism such as motor 4, driving via a gear-box a grooved feed roll 3 against which acts a spring urged roll 5, feeds the wire to and through the contact device. Wire straightening means 8 operates on the wire between the advancing mechanism and the contact device and comprises a first and a second set of idling straightening rolls arranged one behind the other in the direction of travel of the wire. The rolls of the first set are arranged in a common rotational plane and those of the second set in another common rotational plane at right angles to the plane of the first set. In the particular example shown, two wires 1, 2 are fed through a twin apparatus and a first assembly 8a has two "first" sets of rolls 9-13 and 14-16 in parallel planes while similarly a second assembly 8b has two "second" sets in parallel planes at right angles to those of the first sets. The welding wires may be spaced so that their common plane lies at 45 degrees to the rotational planes of the rolls. The positions of the rolls may be individually adjustable on slides 21 adjusted by screws 20. The circumference of each roll may form the outer race of a ball bearing (Fig. 3, not shown) and may be grooved.
Patent GB-153265-A (GB)
Title: Process for the production of dinitrophenol
IPC: C07C205/23
Filed: 1920-10-28
Abstract: 153,265. Norsk Hydro - Elektrisk Kvaelstofaktieselskab. Oct. 29, 1919, [Convention date]. Nitrogen oxidÚs; nitric acid.-In the production of dinitrophenol by nitrating phenol with dilute nitric acid, the spent acid is restored to strength by treatment with nitrogen oxides in a tower. The phenol is fused in a vessel K and nitrated in a vessel A fitted with a stirrer, the nitrous gases evolved being passed into the tower T. The dinitrophenol is collected on the filter B and the spent acid, concentrated by continuous circulation, by means of a montejus, through the tower T, between the vessel C and the vessel E; the nitration acid is drawn from the latter. The nitric acid content of the system is maintained by introducing fresh nitrous gases by the pipe F.
Patent GB-780375-A (GB)
Title: Production of polyacrylonitrile fibres having a scaly integument
IPC: D01D5/04
Filed: 1955-10-26
Abstract: <PICT:0780375/IV (a)/1> Polyacrylonitrile fibres having a scaly surface are obtained by extruding an aqueous saline solution of a polymer containing at least 85 per cent of acrylonitrile into an aqueous coagulant at 15-100 DEG  C., removing the so-formed fibres from the coagulant after a residence time of 0.1 to 3 seconds and, at any stage of the process while the core of the fibre is still plastic, stretching the fibre to rupture the initially coagulated sheath, residual salt being finally extracted from the fibre by, for example, washing with water.  The coagulant may be water, wet stream at 100 DEG  C., an aqueous salt solution, a dilute acid or an aqueous mixture of an organic, water-miscible, coagulant such as acetone, methanol or ethanol.  Stretching may be effected during or after coagulation, preferably after treatment of the fibres in another aqueous bath at a lower temperature, and may be effected in aqueous baths, in air or in wet steam.  Examples are given. Specifications 459,596, [Group IV], 672,775, 673,738 [Group XXXVIII], 689,742, 689,743, 689,744, 689,770, 695,448, 714,530, 729,382 and 748,504 are referred to.
Patent GB-723292-A (GB)
Title: Improvements in cutter chains for mining machines
IPC: E21C25/36
Filed: 1952-12-04
Abstract: 723,292. Chains. ANDERSON, A., and ANDERSON, BOYES & CO., Ltd. Nov. 10, 1953 [Dec. 4, 1952], No. 30729/52. Addition to 681,210. Class 24. In a cutter chain for a mining machine, as described in the parent Specification, said chain including a series of link components 10 interconnected by compound pivots each comprising an eyebolt-like-member of which the shank part 11 is journalled in one link component and of which the eye part 12 is penetrated by a pivot pin associated with the adjacent link component, the axis of the shank part and the axis of the pin being mutually normal and both being transverse to the line of travel of the chain, the shank part 11 of each eyebolt-like-member and the associated link component 10 are detachably connected with one another by means of a " bayonet," " breechblock," or like interlocking connection. In the construction shown the interlocking connection comprises a segmental peripheral rib 13 on the shank part and a mating interrupted annular groove 14 in a bush 15 secured in the link component 10. The rib 13 is formed on a reduced diameter portion 16 of the shank part 11, which portion is journalled in the bush 15. The larger diameter neck portion 17 is journalled in a bush 18 which is sufficiently large to permit passage of the ribbed reduced diameter portion 16. The bush 15 is preferably so fitted in the link component 10 that it may be readily withdrawn, re-orientated and re-fitted in the link component to equalize wear.
Patent GB-1166199-A (GB)
Title: Apparatus for use in melting and casting metals.
Inventor: DUNLOP ADAM
IPC: B22D18/06
Filed: 1967-07-04
Abstract: 1,166,199. Casting processes. A. DUNLOP. 7 May, 1968 [4 July, 1967], No. 30755/67 Heading B3F. A titanium or titanium alloy sponge electrode 17 in a chamber 11 is melted by an electric arc into a water-cooled ingot mould 12, the mould's flange 14 being sealed to the flange 15 of the chamber. On completion, the ingot produced in the mould is drawn up into the chamber 11 attached to the remains of the electrode 17. The mould is then swung away from the chamber on an arm 13. A crucible-carrying chamber 18 is swung beneath the chamber and sealed to the flange 15. A mould-carrying chamber 21 is swung beneath chamber 18 and sealed thereto. Chambers 11, 18 and 21 are evacuated and the ingot is lowered into a copper crucible 19 within the chamber 18. An arc is struck and the ingot melts into the crucible. The molten metal is poured into a mould 24 which may be rotated on a turntable 26 for centrifugal casting. The moulds 24 are preheated in an inert atmosphere in an oven 23, and are introduced into a mould carrying chamber 28 through a gas lock 22. While one mould-carrying chamber 21 is used in casting, the other 28 is emptied and a new mould installed.
Patent GB-374761-A (GB)
Title: Improvements in and relating to the manufacture of articles of silica
IPC: C03B23/20
Filed: 1931-11-06
Abstract: 374,761. Fusing and working silica. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Winckler, G. A. F. ; 29, Clearview Avenue, Worcester, Massachusetts, U.S.A.) Nov. 6, 1931, No. 30827. Convention date, Nov. 6, 1930. [Class 56.] A method of making an article of silica, such as an astronomical mirror, consists in assembling fragments 1 of fused silica in contact with one another, and then applying a blast of heat, such as an oxyhydrogen flame from a blowpipe 3, to cause the pieces to weld together at their points of contact. The fragments remain unfused as a whole, and the spaces enclosed between them constitute a large fraction of the total volume of the welded mass. The fragments need not be irregular but may be of regular geometric shape. Tubes, for example, may be fused together to form a unitary structure containing relatively large cavities. The cellular article thus produced may be faced with high grade, homogeneous silica by the method, described in Specification 296,059, [Class 56, Glass], of spraying finely divided silica through a flame. Specification 364,688 also is referred to.
Patent GB-882057-A (GB)
Title: Organosilicon methylideneamino compounds and process for producing the same
IPC: C08G77/388
Filed: 1957-10-03
Abstract: Methylideneaminoalkylsilicon compounds containing the grouping RR1C = N(CH2)aSi­, where R and R1 are hydrogen or hydrocarbon groups which may be substituted and a is at least 3 (see Group IV(a)), are used for coating material such as glass and silica gel.  In Example 8, hydrated silica gel is heated with a benzene solution of salicylidene aminopropylmethyldiethoxysilane to bond one grain of silane to 40 grams of silica.  After removal of solvent and washing, the gel is used to chelate copper from copper acetate solution.  In Example 9, glass slides are coated with a chloroform solution of distyrylmethylidene aminopropylmethyl diethoxysilane, which is cured to a hard film, resistant to washing, and capable of absorbing ultra-violet light.  Reference has been directed by the Comptroller to Specifications 684,296, 769,498 and 795,894.ALSO:Methylideneaminoalkylsilicon compounds containing the grouping RR1C=N(CH2)aSi­ where R and R1 are hydrogen or hydrocarbon groups which may be substituted with nitro, halo or hydroxy radicals, and a is at least 3, are prepared by reacting an aldehyde or ketone with an aminoalkyl silicon compound containing the grouping H2N(CH2)aSi­. This latter compound may be a silane or polysiloxane as described in Specifications 882,054 and 882,069.  The products claimed are silanes in which the remaining valencies are satisfied by R11bX3-b groups, where R11 is alkyl or aryl, X is alkoxy and b is 0, 1 or 2, and siloxanes, including copolymers, in which the remaining valencies are satisfied by <FORM:0882057/IV (a)/1> Examples of aldehyde starting materials are formaldehyde, acetaldehyde, butyraldehyde, 2-ethylbutyraldehyde, n-octylaldehyde, acrolein, crotonaldehyde, methacrolein, 2-ethyl-3-propylacrolein, benzaldehyde, tolualdehyde, cinnamaldehyde, nitro- and 4-chloro-2-ethylbutyraldehyde, salicylaldehyde and anisaldehyde; examples of ketones are acetone, methylisobutyl-, methylethyl-, ethylbutyl-, methylvinyl-, and allylisobutyl ketone, isophorone, mesityl oxide, acetophenone, isobutylphenyl ketone, dypnone, 4,41-dihydroxybenzophenone and p-nitroacetophenone.  The reaction is preferably effected in an organic liquid, e.g. cyclic ethers, polyalkylene glycols, petroleum ether and aromatic hydrocarbons.  The products may be added to polysiloxanes, particularly in elastomeric compositions. In typical examples the preparation is described of (1) C6H5 CH=CH-CH= N-(CH2)3Si(OC2H5)3; (2) HOCzH4CH= N(CH2)3Si CH3(OC2H5)2; (3) CH2=N-(CH2)3 Si(OC2H5)3; (6) the copolymer (CH3)3Si <FORM:0882057/IV (a)/2> Si (CH3)3.  In (8), the compound (2) is coated on hydrated silica gel and used for chelating copper ions from copper acetate solution.  In (10), the compound (1) is added to a dimethyl siloxane gum containing silica and the mixture cured to an elastomer.  Uses: Ultra-violet absorbers, sunscreen agents, chelating agents, additives to polysiloxanes.  Reference has been directed by the Comptroller to Specifications 684,296, 769,498 and 795,894.
Patent GB-1070217-A (GB)
Title: Method for the manufacture of book-binding materials
IPC: B32B27/00
Filed: 1964-08-04
Abstract: 1,070,217. Laminates. BAMBERGER KALIKOFABRIK G.m.b.H. Aug. 4, 1964 [July 27, 1963], No. 30978/64. Heading B5N. A method of making a book-binding material comprising bonding together a sheet of impervious material and a sheet of pervious fabric by means of an adhesive. The adhesive may be applied to either of the two sheets by roller or doctor blade. The specified impervious materials are paper and synthetic materials. The fabric may be woven or knitted or in the form of a fleece and may be made from animal, vegetable or synthetic fibres, e.g. of cellulose, polyamides or polyesters. The sheet of fabric may comprise a plurality of prebonded sheets of differing colour or structure. The adhesive may be thermoplastic.
Patent GB-267212-A (GB)
Title: Improved means for producing reciprocating motion of that type in which one set of alternate strokes are made at different speeds from the other set of alternate strokes
IPC: B65G27/00
Filed: 1925-12-09
Abstract: 267,212. Dadge, B. N. Dec. 9, 1925. Compressed-air engines. - A shaker conveyer is driven by a compressed-air engine E which is operated by an electrically-driven pulsator P which acts through gearing m, k. The pulsator cylinders P, P<1> have pistons p<1>, p<2> connected to opposed cranks on a shaft K. The engine cylinder has a trunk piston e<3>, e<4> adjustably connected to a lever e<8> operating the conveyer. The cylinders P<1>, P<2> are connected to the ends of the cylinder E as shown. The piston p<2> is of two diameter and acts as a pump to draw in atmospheric air and force it past a valve r into a receiver R which through spring-held, non-return valves r', r<2> supply the cylinders P<1>, P<2> when the ports s<1>, s<2> are opened and the pressure is sufficient. The pressure in the closed circuits between the cylinder ends is thereby raised and maintained. The outward strokes of the engine piston are more rapid than the inward strokes. The pistons p', p<2> may be replaced by a single, differential piston.
Patent GB-485466-A (GB)
Title: Improvements in and relating to the manufacture and production of finely divided vatdyes
IPC: C09B67/28
Filed: 1936-11-17
Abstract: Anthraquinonoid or indigoid vat dyes are prepared by oxidizing leuco vat dyes, or their derivatives, in a solution containing an albumin, so rapidly that a colloidal dispersion which is not separable by filtration is formed.  The albumins used are those proteins which are soluble in water and whose solutions can be coagulated by boiling. Sulphonated castor oil or a derivative thereof may also be incorporated in the solution of the leuco vat dye.  Specified rapid oxidizing agents are hydrogen peroxide, sodium hypochlorite and sodium nitrobenzene sulphonate.  In the examples a mixture of sulphonated castor oil and egg albumin is the colloidal stabilizer. The Provisional Specification refers to colloidal stabilizers in general.ALSO:Anthraquinonoid or indigoid vat dyes are prepared by oxidizing leuco vat dyes, or their derivatives, in a solution containing an albumin, so rapidly that a colloidal dispersion which is not separable by filtration is formed.  The albumins used are those proteins which are soluble in water and whose solutions can be coagulated by boiling.  Sulphonated castor oil or a derivative thereof may also be incorporated in the solution of the leuco vat dye.  Specified rapid oxidants are hydrogen peroxide, sodium hypochlorite and sodium nitrobenzene sulphonate.  In examples, (1) a solution containing reduced Caledon Yellow G paste is added at 50 DEG C. to an aqueous solution of dried egg albumin, sulphonated castor oil, hydrogen peroxide and caustic soda when a clear yellow colloidal solution of the dye is formed; (2) a solution containing Soledon jade green SX paste, dried egg albumin, sulphonated castor oil and caustic soda is treated at 40 DEG  C. with sodium hypochlorite solution when a clear green solution of Caledon jade green is formed.  Leuco Indanthrene blue R and the Indigosol colours are also specified for use in the process.  The Provisional Specification refers to colloidal stabilizers in general.