baber/WOPTO huggingface dataset:
Patent GB-1168297-A (GB)
Title: Production of Copper Phthalocyanines
IPC: C09B47/067
Filed: 1967-03-14
Abstract: 1,168,297. Copper phthalocyanine. e . BADISCHE ANILIN- & SODA-FABRIK A.G. 14 March, 1967 [15 March, 1966; 30 July, 1966], No. 11885/67. Heading C4P. Copper phthalocyanines are obtained by reacting preferably at temperatures up to 330‹ C., a phthalonitrile with a copper salt in a solvent which is inert under the reaction conditions, wherein 4À1 to 4À8 moles of the phthalonitrile per gram atom of copper in the copper salt is used. Reactions at temperatures up to 220‹ C. are preferably carried out under atmospheric pressure while reactions above this temperature are carried out under superatmospheric pressure. The reaction may be carried out continuously or batchwise. Examples are given for the production of copper phthalocyanine.
Patent GB-499852-A (GB)
Title: Improvements in or relating to coated welding rods, particularly for use in arc welding
IPC: B23K35/02
Filed: 1937-04-26
Abstract: 499,852. Uniting by fusion. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. April 26, 1937, No. 11894. Void. Convention date, April 29, 1936. [Class 83 (iv)] A. welding rod, particularly for automatic arc welding, consists of a core provided with axially extending ribs engaging an outer helical metal wire or band for conducting current to the core, the intervening space being filled with slag-forming material. The core 1 may have corners 3 engaging an outer wire coil 2 or engaging a helically wound metal band provided with apertures, flux 4 being forced through the gaps in the coil or apertures in the band. In a further form, flux may be applied to a ribbed core 7 and a plain metal band 9 helically wound thereover.
Patent GB-768914-A (GB)
Title: Improvements in and relating to the packaging of articles
IPC: B65D75/42
Filed: 1955-04-25
Abstract: 768,914. Packaging; boxes. AKTIEBOLAGET NORDISK SILKECELLULOSA. April 25, 1955 [April 26, 1954], No. 11921/55. Classes 18 and 94(1). Tablets 13 or like articles are enclosed in pockets 15 formed by securing together folded portions of a strip 91. The strip is packaged in a carton 1 formed with a discharge opening 6 in one side wall and provided with a bridge piece 4 which co-operates with the carton top 2 to form a guide passage through which the strip is pulled to displace the tablets. The edge of the opening 6 functions as a knife to break open the folds and cause ejection of .the tablets in succession as shown. The bridge piece 4 is formed with a window 5 through which numerals on the strip may be observed, these numerals indicating the number of tablets remaining in the carton.
Patent GB-720212-A (GB)
Title: Improvements in apparatus for the winding of wire on reels
Inventor: STRINGER ALFRED HUGH
IPC: B65H54/28
Filed: 1952-05-12
Abstract: 720,212. Winding wire. BRITISH INSULATED CALLENDER'S CABLES, Ltd. Aug. 7, 1953 [May 12, 1952], No. 11979/52. Class 120 (2). Apparatus for winding wire on a reel 1 comprises a contact member 9 moving with the wire traverse guide 22 and displaceable by contact with the reel flanges to cause reversal of motion of the guide, said member 9 comprising a blade 15 and a support therefor, the blade and support being replaceable by others of different blade thickness when different wires are to be wound, the thickness of the blade in each case being equal to the diameter of the wire being wound and the centre line of the blade remaining in the same traversing vertical plane with the point 21 at which the wire is taken on to the reel. Upon contacting a reel flange, the blade 15 moves the member 9 against spring pressure 14 to move a rod 13 to which are attached cranks 17, 18 which, through adjustable screws 19, move operating members 20 to energize or de-energize solenoids through micro-switches 7, 8 to reverse, through appropriate clutches, the direction of the traverse screw 4. Specification 714,208 is referred to.
Patent GB-1420647-A (GB)
Title: Alignment and control system
IPC: G01S1/70
Filed: 1973-03-13
Abstract: 1420647 Measuring azimuth CANADA MINISTER OF NATIONAL DEFENCE 13 March 1973 [17 March 1972] 11982/73 Heading H4D In aligning a gun or ship's compass with a reference azimuth, the bearing # of a reference unit is found by transmitting reference data from the reference unit by continuously rotating a collimated light beam about of vertical axis and flashing a beacon once for each increment of angular displacement of the beam and twice when the beam is due south, and counting the beacon flashes between the double flash and the arrival of the rotating light beam at the gun or compass. Reference unit.-The beacon, Fig. 1, not shown, may be a Xenon flash lamp (30) with a conical reflector (31) to give all round illumination in the azimuthal plane with a vertical spread of 280 mils (6,400 mils = 1 revolution) flashing 640 times per revolution of the rotating beam and giving a double flash, spacing 130 microsec, when the rotating beam is due south. The rotating beam may be from a GaAs laser rotated at 1 rev per 5 secs. and have a divergence of 0À5 mil horizontally and 280 mil vertically. The laser may be pulsed at a rate corresponding to 0À1 mil. Alternatively a reflecting prism may be rotated at the reference unit and co-operate with a laser at the gun or compass. Receiver.-Infra red (for security) from the laser and flash lamp is received in a sight, Fig. 4, not shown, comprising an I.R. filter and a dichroic filter (43) for separating the laser light from the flash light. The flash light is detected by a split photo-diode (47), a lock-on loop positioning the sight to obtain equal output from both sides. Interpolation.-An oscillator 38, which may be free running or synchronized with the flashes, provides two decimal orders of interpolation (i.e. down to 0À1 mil). The interpolation pulses are interrupted as soon as a laser pulse is received. If more than one laser pulse is received (as may happen when the receiver is close to the reference unit) the number of such pulses received is added to the count and since they occur at ¢ the interpolation oscillator frequency the result corresponds to the centre of the laser beam. Gun laying.-The bearing of a target # is manually set in a computer 39 which calculates #, the angle between the target and the reference unit. A control loop then moves the gun barrel into position while the sight remains locked on to the reference unit.
Patent GB-591572-A (GB)
Title: Improvements in domestic washing boilers
IPC: D06F1/00
Filed: 1945-05-14
Abstract: 591,572. Washing boilers. PILKINGTON, W. May 14, 1945, No. 12006. [Class 64 (i)] The sides and top portion of the casing A of a domestic washing boiler are formed as an integral unit from a single sheet of metal, the upper end of the casing being bent inwards and downwards to form the top surround a the inner edge of which is flanged vertically downwards, and the upper edge of the pan B is riveted, bolted, or otherwise secured to the flange a' so formed. The casing is square or rectangular in plan, and the pan is similarly square or rectangular at the top and gradually changes in cross-section downwardly to circular at the bottom.
Patent GB-153616-A (GB)
Title: Improvements relating to prevention of corrosion
IPC: C23F13/02
Filed: 1919-05-13
Abstract: 153,616. Adam, M. A. May 13, 1919. Corrosion, preventing.-Relates to the prevention of corrosion of apparatus such as metal tanks, pipes, pumps, heaters &c. containing or carrying corrosive metallic solutions of metals which are capable readily of yielding electrolytically a metallic protective deposit, more particularly to the protection of iron vessels used in the detinning of tinned iron. The tank &c. is made the cathode in a special electric circuit and a potential is applied which allows a deposit of the protecting metal at a slightly greater rate than it is re-dissolved. An apparatus for heating the liquid for treating tinned scrap comprises two flanged castiron troughs a bolted together through two rubber joint rings e as shown in plan. Each trough has a steam jacket b on the outside and the two are separated by a graphite or moulded carbon anode plate f. Inlet and outlet openings g, h are provided for the liquid, and similar openings i, j for the steam. Connecting-passages c, d are provided between the two sides of the apparatus. External ribs k may be provided on the troughs, and internal ribs may also be provided to baffle the flow of liquid.
Patent GB-1215741-A (GB)
Title: Improvements in the bulk preparation of vinyl chloride polymers and copolymers
IPC: B01J3/04
Filed: 1968-03-12
Abstract: 1,215,741. Polymerizing vinyl chloride. PRODUITS CHIMIQUES PECHINEYSAINT-GOBAIN. 12 March, 1968 [14 March, 1967 (2)], No. 12017/68. Heading C3P. In the bwo-stage bulk polymerization or copolymerization of vinyl chloride, part of the monomer is allowed to evaporate, and the vapours are condensed and returned to the reaction; the first stage is effected with high turbulence to 7-15% conversion and the second stage with slow agitation. The two stages are effected in the same or separate reactors; reflux is effected at least in the second stage and preferably in both. All the monomer may be present in the first stage or only part, the remainder being added before the second stage. The reflux rate may be 0À3-3% per minute at the beginning reducing to 0À05- 0À1% as conversion reaches 75-90%. In one example vinyl chloride is copolymerized with vinyl acetate, in others it is homopolymerized. High density polymers having narrow partial size distribution are obtained.
Patent GB-353467-A (GB)
Title: Improvements in or relating to the manufacture of aliphatic ketones
IPC: C07C45/00
Filed: 1930-04-16
Abstract: Catalysts for the production of ketones are made by heating a mixture of one or more alkaline-earth oxides (including magnesia) or compounds yielding such oxides on heating, with one or more weak acidic oxides such as heavy metal oxides, alumina, or compounds yielding such oxides, or silica, to produce a product having hydraulic properties, and then, preferably after grinding, setting to a cement by adding water.  Suitable materials are mixtures of calcium oxide or carbonate with an oxide or carbonate of zinc, iron, or aluminium or silica, and such mixtures may be made by adding caustic soda or soda ash to mixed solutions of calcium and heavy metal nitrates, chlorides or sulphates; the mixture is heated to 1200 DEG -1800 DEG  C.; or a mixture of magnesium and zinc or aluminium nitrates may be ignited at 500 DEG  C., ground and hydrated.  In an example sodium hydroxide is added to a solution of equimolecular quantities of zinc and calcium nitrates, the precipitate being washed, dried at 80 DEG  C., and calcined in an oxidizing atmosphere at 1450-1500 DEG  C. for an hour; the product is ground, mixed with water to a plastic mass, allowed to set, and then broken up to the desired size.ALSO:For the production of acetone and other aliphatic ketones from acetylene or aliphatic alcohols or their derivatives (such as aldehydes and esters) and steam, catalysts are employed which have been made by heating a mixture of one or more alkaline earth oxides (including magnesia) or compounds yielding such oxides on heating, with one or more weak acidic oxides such as heavy metal oxides or alumina or compounds yielding such oxides, or silica, to produce a product having hydraulic properties, and then, preferably after grinding, setting to a cement, by adding water. Suitable materials are mixtures of calcium oxide or carbonate with an oxide or carbonate of zinc, iron or aluminium, or silica, and such mixtures may be made by adding caustic soda or soda ash to mixed solutions of calcium and heavy metal chlorides, nitrates or sulphates; the mixture is heated to 1200-1800 DEG  C. or mixtures of magnesium nitrate with zinc or aluminium nitrates may be ignited at 500 DEG  C., ground and hydrated.  The acetylene or alcohol and steam may be passed over the catalyst at 300-500 DEG  C., with or without an admixture of oxygen; or oxygen may be passed over the catalyst alternately with the reaction mixture.  In an example sodium hydroxide is added to a 10 per cent solution of equimolecular proportions of zinc and calcium nitrates, the precipitate being washed, dried at 80 DEG  C., and calcined in an oxidizing atmosphere at 1450-1500 DEG  C. for an hour; the product is ground, mixed with water to a plastic mass, allowed to set, and then broken up to the desired size and charged into the reaction vessel.  A mixture of ethyl alcohol vapour and steam is passed over this catalyst at 465-480 DEG  C., yielding acetone.
Patent GB-291212-A (GB)
Title: Improvements in or relating to the starting handle mechanism of internal-combustion engines
IPC: F02N1/02
Filed: 1927-05-05
Abstract: 291,212. Bell, A. S., Hancorn, J. S., and Linell, H. J. May 5, 1927. Turning-gear.-In a device for disengaging a starting-handle if the engine turns backwards at starting, a stationary drum a has teeth a' on its inner face coacting with a spring-loaded plunger b<5> on a pin b<4> movable on an inclined slot b<2> in a boss b<1> on the starting shaft b, which is movable into engagement with the engine shaft. The pin b<4> is carried by a bolt b<3> movable axially in a cavity in the boss b<1> and normally held by a spring b<6> in engagement with a one-way stop projection c<2> on the hub c<1> of the handle c, which is rotatable on the spindle b. At starting, the shaft b is driven from the hub c' through the bolt b<3> and boss b<1>, the pin b<4> being in the position shown and the plunger b<5> clicking over the teeth a', which may be slightly of ratchet form. If the engine and the shaft b turn backwards, the pin b<4> is temporarily stopped by the teeth a' and the action of the slot b<2> withdraws the bolt b<3> from the projection c<2>, releasing the hub c' of the handle c. A spring may be provided between the boss b<1> and the face a<2> of the drum a.
Patent GB-514947-A (GB)
Title: Improvements relating to reflectors
IPC: F21V7/10
Filed: 1938-04-22
Abstract: 514,947. Light reflectors. CHANCE BROS. & CO., Ltd., and HAMPTON, W. M. April 22, 1938, No. 12065. [Class 75 (ii)] [Also in Group XX] A concave reflector comprises a rigid base a of metal &c, to which is applied a flexible sheet of toughened glass b having a thickness of, e.g., 0À5 to 1mm. and the rear surface c of which is silvered &c. The sheet is held in place by clips d on the base, and may be formed in one piece or built up in sectors. Specification 20810/89, [Class 75], is referred to.
Patent GB-842795-A (GB)
Title: Improvements in and relating to filter press trays
Inventor: EVANS SAMUEL
IPC: B01D25/21
Filed: 1958-04-17
Abstract: 842,795. Filter presses. PROGRESS ENGINEERS Ltd. March 20, 1959 [April 17, 1958], No. 12183/58. Class 46. A filter press tray is provided on each face with grooves or a like configuration, e.g. as shown in Specifications or 795,167, 820,668 by which liquid can pass to the periphery of the tray where there is a surrounding frame 10. A drainage groove 14, 15 is provided on each face close to the frame, the groove 14 being nearer the edge than the groove 15. Oblique holes 16 are provided to allow escape of the liquid to drainage holes 17. The drainage grooves preferably extend all round the periphery and the plate preferably tapers from the drainage grooves to the normal thickness 13 as shown at 13a to provide added strength to the tray. Specification 842,669 also is referred to.
Patent GB-1248482-A (GB)
Title: Braking device for vehicles
IPC: B64F1/02
Filed: 1969-03-07
Abstract: 1,248,482. Aircraft arresting device. BORGS FABRIKS A.G. 7 March, 1969 [7 March, 1968], No. 12209/69. Heading B7G. An aircraft arresting device has a hook cable 1 or net connected at each end to straps 7 each of which is wound on a brake drum 6 which is caused to rotate before contact with an alighting aircraft by a motor 13 at a speed corresponding to the approach speed of the aircraft so that the least possible jerk is applied to the arrester device. A monitoring device sends a radar signal when the aircraft passes to actuate a small braking device which will slow down the rotation of the drum 6 by an amount corresponding to the time taken by the aircraft to reach the arrester device so that the rotational speed corresponds to the speed of the aircraft. The strap 7 is fixed to a coupling 9, 11 of which the two parts are axially fixed but rotatable with respect to one another and one part 9 is releasably attached to the rotating drum by studs 19 and the other part 11 is fixed to hook cable 1 and releasably attached to a stand 10 by studs 20. In operation, when the aircraft engages the hook cable, the studs 19, 20 shear so that the hook cable and the strap are connected to each other via the coupling 9, 11 and the drum is then braked by a friction brake 22. An hydraulic brake may be used instead. The arrangement may be used in conjunction with conventional emergency arresters fitted to quick-rising masts.
Patent GB-615419-A (GB)
Title: Nitramines and their preparation
IPC: C07D251/06
Filed: 1945-05-15
Abstract: 3 : 7-Dinitropentamethylene tetramine, i.e. D.P.T., is obtained by treating hexamine with concentrated nitric acid, separating the cyclonite thus produced from the nitrolyses mother liquor, and neutralizing said mother liquor to a pH of about 5.6. Alternatively, it may be produced from hexamine dinitrate by treatment with a liquid carboxylic anhydride or by the condensation of formaldehyde, nitramide and ammonia.  On treatment with a solution of ammonium nitrate or absolute nitric acid, D.P.T. yields a mixture of cyclonite and homocyclonite.  Detailed examples are given of (a) the preparation of D.P.T. by (1) neutralization of the mother liquors from the nitrolyses of hexamine; (2) treating hexamine at moderate temperatures with nitric acid containing dissolved ammonium nitrate; (3) converting hexamine to hexamine dinitrate and treating the latter compound with a carboxylic acid anhydride; (4) using sulphuric acid instead of the carboxylic acid anhydride in (3); (5) condensing formaldehyde with nitramide at about 0 DEG  to 30 DEG  C. and treating the reaction product with ammonia; (b) the following reactions of D.P.T.; (6) treatment with concentrated nitric acid at 0-30 DEG  C. to produce homocyclonite; (7) treatment with ammonium nitrate dissolved in nitric acid together with acetic anhydride to produce p  homocyclonite; (8) treatment with sulphuric and nitric acids to produce cyclonite and homocyclonite.
Patent GB-1159639-A (GB)
Title: Retractable Vehicle Lamp
IPC: B60Q1/05
Filed: 1968-03-14
Abstract: 1,159,639. Vehicle headlamps. ADAM OPEL A.G. 14 March, 1968 [18 March, 1967], No. 12343/68. Heading F4R. A vehicle headlamp is pivotally mounted about an axis 5 extending generally fore and aft of the vehicle so that it can be moved between an aperture position (as shown) and a retracted position in which the lamp casing 3 is substantially flush with the vehicle body 6, 7. The casing has a ball pivot 9 at the front mounted in a socket 10 and a pivot pin 11 at the rear which is journalled in a guide bar 14 and is adapted to be driven by an electric motor 12 controlled by the driver. The bar 14 and motor 12 are carried by a base plate 15 which can be adjusted by a screw 17 to vary the inclination of the axis 5. The screw may be operated by the driver through a Bowden cable, and the motor 12 may be replaced by a Bowden cable or a pressure operated device. In an alternative embodiment (Figs. 5 and 6, not shown) the housing is of tetrahedral shape, the headlamp being located in the forwardly directed face and the pivot axis lying along one rearwardly directed edge.
Patent GB-1170659-A (GB)
Title: Process of Photographic Development
Inventor: CLARKE ROBERT GEORGE
IPC: G03F7/06
Filed: 1967-03-16
Abstract: 1,170,659. Development process. EASTMAN KODAK CO. March 16, 1967 [March 16, 1966], No.12407/67. Heading G2C. An unhardened gelatine-silver halide layer is developed in the presence of a tanning developing agent to produce a tanned gelatine image by treating the exposed emulsion layer with an alkaline activator solution containing formaldehyde which may be supplied by a formaldehyde donor and aluminate, zincale, plumbate, chromate, molybdate or stannate ions. Specified formaldehyde donors are 2-(hydroxymethyl)-, 2-methyl, and 2-ethyl-2-nitro-1, 3-propanediol, 2-methyl-2-nitro -1- propanol, sodium formaldehyde bisulphite, 3-#-hydroxyethyl oxazolidine, 3-phenyl oxazolidine, oxazolidine, 3-methyl oxazolidine, methylene bisoxazolidine and 3-ethyl oxazolidine which may be used in the presence of a hydrolysis product thereof e.g. 2, 2<SP>1</SP>-imino diethanol. The activator may contain an alkali metal carbonate, bicarbonate, phosphate on hydroxide, the sodium salt of EDTA, gelatine softeners e.g. sodium salteylate, potassium isophthalate, potassium p-toluene sulphonate, sodium benzoate, potassium nitrate, potassium cinnamate. The activator may be made up as a concentrate in wet or dry form. The developed emulsion may be subjected to the colloid transfer process and the emulsion may contain a tanning and non-tanning developer.
Patent GB-326690-A (GB)
Title: Improvements in rotary liquid meters
IPC: G01F3/28
Filed: 1929-04-22
Abstract: 326,690. Ridley, W. L. April 22, 1929. Impulse and reaction meters; governing and regulating. - A rotary liquid meter with vanes formed with pockets to receive the liquid has a hollow chamber 22 rotating concentrically therewith through an opening 31 in which the liquid passes to the pockets. By adjustably mounting the chamber 22 the disposition of the liquid therein may be altered so that the meter is accelerated or retarded at certain points to reduce splashing over from one pocket to another. The vanes shown comprise three circular portions 17 - - 19 of different radii joined by plane portions 20, 21, the latter being at right angles to the former.
Patent GB-1392341-A (GB)
Title: Method of producing powdered wetproofed materials
IPC: H01M4/88
Filed: 1972-03-16
Abstract: 1392341 Wetproofed carbon powder ZLEHIT PRI BAN 16 March 1972 [29 March 1971] 12445/72 Heading C1A [Also in Divisions D1 and H1] A method for producing powdered wetproofed materials, suitable for the production of gas diffusion electrodes, comprises mixing a "micropore-free" electroconductive powder, directly or as an aqueous suspension, with a wetproofing agent in the form of an aqueous dispersion or a solution in an organic solvent. "Micropore-free" means particles which are not thoroughly transpierced by the micropores. The mixing process proceeds at normal or elevated temperature, and after homogenization has been achieved the disperse medium is discarded and the solid phase (wetproofed material) dried. When using an aqueous dispersion of the wetproofing agent the dispersion stabilizers are removed, e.g. by heating at 250-350‹ C. for 30 to 90 min. or by washing and subsequently heating at 100-140‹ C., and the material is ground anew. The electroconductive powder is preferably carbon black and may comprise 3-5% by weight of the suspension. The wetproofing agent is a substance having a contact angle greater than 90 degrees and may comprise one or more hydrophobic polymers, e.g. polytetrafluoroethylene, polyethylene (high pressure), polyisobutylene, polypropylene, natural rubber or synthetic (butadiene-styrene) rubber. The polymer may be present in an amount of 10-60% by weight of the dispersion or solution. When using solu ions of the wetproofing agents the electroconductive powder may be introduced at the boiling temperature of the solvent. The powdered wetproofed materials may be made into gas diffusion electrodes using various catalysts, e.g. activated carbon.