baber/WOPTO huggingface dataset:
Patent GB-1037374-A (GB)
Title: Polyimides and a process for their manufacture
Inventor: DAVIS ANTHONY CHARLES
IPC: C08G73/10
Filed: 1964-07-14
Abstract: Polyimides containing the repeating unit: <FORM:1037374/C3/1> wherein R is a tetravelent radical containing at least 5 carbon atoms arranged in one or more rings, the four carbonyl groups being attached to separate carbon atoms in the ring or rings, and each pair of carbonyl groups being attached to adjacent carbon atoms in the R radical; R1 is a divalent alkylene radical containing at least two carbon atoms, X is oxygen and p is an integer \sF 10; R11 is a divalent radical containing at least two carbon atoms; n has a value which may vary throughout the polymer but is always \sF 1 and m is an integer greater than 1, may be prepared by reacting together (a) at least one primary diamine of the formula H2N-R11-NH2 wherein the two amino groups are each attached to separate carbon atoms of the divalent radical R11, (b) a second diamine having the formula NH2(R1X)pR1NH2 wherein R1, X and p have the meanings as above, the two diamines being present in amounts such that the mole ratio of diamines (I) to diamine (II) is always greater than or equal to 1 : 1 and (c) at least one tetracarboxylic acid of the formula <FORM:1037374/C3/2> or an ester or dianhydride derivative of the acid of Formula (III).  Exemplified diamines (I) are nonamethylene diamine and dodecamethylene diamine, exemplified diamines (II) are an omega - bis - 3 - aminopropoxy - polyoxyethylene and an omega-bis-2-aminoethoxy-polyoxyethylene. Pyromellitic acid in the form of its dimethyl ester or dianhydride is the preferred acid (III).  The polyimides preferably have an inherent viscosity of at least 0.1 measured on a solution of a 1/2 % weight by volume of the polymide dissolved in meta-cresol at 25 DEG  C. and may be spun into filaments.
Patent GB-913127-A (GB)
Title: Self-cleaning nozzle
IPC: B08B9/34
Filed: 1960-08-23
Abstract: 913,127. Nozzles. MEYER MANUFACTURING CO., GEO. J. Aug. 23, 1960 [March 30, 1960], No. 29073/60. Class 69 (3). A nozzle nipple 13 screwed to a header 10 has a flexible tip 18, e.g. of rubber, with a liquid outlet slit 27 which closes on release of liquid pressure. A cylindrical wall of the tip embraces a part 15 of the nipple and is itself embraced by a metal ring 22. A recess 29 is provided immediately behind the tip outlet. The axis of the stream emitted through the slit 27 constantly varies to produce a non- stable stream. A number of such nozzles may be spaced along the header and form part of a bottle-washing machine.
Patent GB-705588-A (GB)
Title: Improvements in or relating to devices for separating liquids from gaseous dispersions
Inventor: MASSEY BERNARD SIDNEY
IPC: B01D53/26
Filed: 1950-11-28
Abstract: 705,588. Separating liquids from gases. BRISTOL AEROPLANE CO., Ltd. Nov. 16, 1951 [Nov. 28, 1950], No. 29131/50. Class 123(3) A method of separating a liquid from a gas in which the liquid is finely dispersed, e.g. water from air, comprises passing, a stream of the dispersion through tortuous pore-passages to cause coalescence of the water into droplets, and then separating the droplets from the air by inertia and/ or density effects, i.e. by means of baffles, and/or centrifugal means or gravity. Air containing finely dispersed water enters the apparatus by a manifold 2 and is delivered to seventeen porous tubes 15 vertically arranged between annular plates 5 and 19. Inner and outer cylindrical gauze screens 25, 26 are arranged adjacent the tubes 15, which may be e.g. of sintered bronze or stainless steel, or glass: or ether vitreous material or several layers of gauze. The gauze 25, 26 acts to separate out the droplets formed when the dispersion is passed through the tubes 15. A cylindrical casing 9, with an outlet 27 for the air and a drain 14 for the water, completes the apparatus. Various modifications are described. The gauze screens may be replaced by a centrifuge, or the apparatus may comprise simply a horizontal porous diaphragm in a conduit with two gauze screens on its downstream side. In a further modification, Fig. 8, the dispersion is passed through a porous diaphragm 53 disposed zig-zag fashion in a casing 9, the droplets being removed by a plurality of gauze screens 56, or by rods or tubes, 27 and 14 being the air and water outlets respectively.
Patent GB-753236-A (GB)
Title: Improvements in, or relating to, receptacles for preserves and similar foodstuffs
IPC: A47G19/30
Filed: 1953-10-22
Abstract: 753,236. Preserve receptacles. WILLIAMS. H. T. Jan. 24, 1955 [Oct. 22, 1953], No, 29149/53. Class 128. Dishes for preserves &c. are gripped at one edge between the foot of a pillar or pedestal and a releasable clamp provided thereon. As shown, dishes 3 are formed with tongues 3a gripped between the foot 2 of a pillar 1 and a plate 4 secured by a wing-nut 12, the plate and foot being rebated at 13 and 10 respectively. Covers. 16 may be releasably pivoted on the pillar by bosses 17 engaging corresponding recesses 15 in lugs 14. Radial arms 6 corresponding to the dishes support spoons &c. The dishes may be made of moulded glass and the pedestal and clamping plate of suitable metal or alloy.
Patent GB-207201-A (GB)
Title: Improvements in or relating to internal combustion engine power plants
IPC: F02B73/00
Filed: 1923-11-19
Abstract: 207,201. Schlumberger, J. Nov. 17, 1922, [Convention date]. Motor power plant.-A power shaft b is driven by two or more multi-cylinder internal-combustion engines a, a<1> having parallel cranks and simultaneous ignition so that a balanced drive is effected by the gear-wheels d, d<1> on the crank-shafts c, c<1> meshing with the gear-wheel e on the power shaft b. The three shafts may be in one plane,as shown.
Patent GB-212874-A (GB)
Title: Improvements relating to the forging or upsetting manufacture of machine parts
IPC: B21K1/22
Filed: 1923-11-20
Abstract: 212,874. Etablissements Sim, Morges Soc. Anon. March 15, 1923, [Convention date]. Valves for internal-combustion engines &c. are made from a bar having a section corresponding to the smallest section of the part to be produced, a portion 3 of the bar being electrically heated and then upset to form a head 2 which is subsequently shaped to the desired form 5 without reheating. The electrode 7, which is adjustable by a screw 15, is provided with a centering socket, while the second electrode 9 serves as a guide for the bar, the other end of which is clamped in a carriage 18. The electrodes are connected to the secondary terminals of a transformer and the carriage 18 is fed forward to the required extent by means of a screw 19 rotated by a stepped driving pulley 20. In a modification the carriage 18 may be fixed and the electrodes movable.
Patent GB-168801-A (GB)
Title: Improvements in and relating to screw propellers and the like
IPC: B64C11/36
Filed: 1920-10-18
Abstract: 168,801. Dicks, T. A. Oct. 18, 1920. Screw propellerse.-In variable-pitch propellers, the hub is surrounded by a sliding sleeve having an arm with pin-and-slot connection for each blade, the sleeve being moved by screw-and-nut mechanism when adjusting the pitch. The boss 3, Fig. 1, has a tubular extension for each blade 5 upon which a sleeve 7 is placed which in conjunction with an internal sleeve 15 on the hollow blade and also roller bearings serve as a free mounting for the blade. Each blade root has a ring 24 having a lug 25 with slot therein to receive a pin 27 carried by an arm 32 on an extension 29 of a sliding sleeve 28. The flat and tongued faces of the extensions 29 contact with corresponding surfaces on opposite sides of the boss and between the blade arm thereof. A flange 33 of the sleeve 28 revolves inside a ring 36 and both have stepped faces whereby, when the outer ring is moved axially, it moves the flange and so alters the setting of the blades. The ring 36 has lugs 39 screwed to take the adjusting screws 40, which are rotated by a shaft 47 through gearing in a case carried by the engine case 1. Each blade is made from a steel tube 6, Fig. 8, into the shape 5, Figs. 10 and 12.
Patent GB-262101-A (GB)
Title: Improvements in the manufacture and production of monocarboxylic acids
IPC: C07C51/38
Filed: 1926-11-22
Abstract: 262,101. I. G. Farbenindustrie Akt.- Ges. Nov. 27, 1925, [Convention date]. Carboxylic acids and anhydrides. - Monocarboxylic acids are obtained by passing the vapours of dicarboxylic acids alone or together with water vapour, or the vapours of dicarboxylic acid anhydrides together with water vapour, at an elevated temperature over catalysts capable of splitting off carbon dioxide. Such catalysts comprise certain oxides, hydroxides, silicates and stable carbonates or mixtures thereof, whilst activating materials and carriers may be present; the following catalysts are specified :-bauxite, sodium and calcium carbonate, the oxides of silicon, aluminium, titanium, iron and nickel. The temperature lies between 250‹ and 500‹ C., and preferably between 300‹ and 450‹ C. The The water vapour is advantageously in excess and a diluent gas may be present. The dicarboxylic acid anhydrides used as starting materials may be obtained by catalytic oxidation of vapours of hydrocarbons and their derivatives, e.g. phthalic and maleic anhydrides from naphthalene, naphthol, benzene and phenol, and the resulting gas mixture may be employed without isolation of the anhydride; certain dicarboxylic acid anhydrides may be formed by the hydrogenation of the anhydrides of unsaturated dicarboxylic acids, e.g. succinic anhydride from maleic anhydride. According to the examples. (1) benzoic acid is obtained by blowing superheated steam through fused phthalic anhydride and conducting the resulting gas mixture over calcium carbonate, or by passing nitrogen saturated with water vapour and phthalic anhydride vapour over aluminium oxide precipitated on pumice or over iron oxide mixed with chromium oxide as activator; (2) maleic anhydride vapour is led with watersaturated nitrogen over active silica gel and yields acrylic acid; in the same way, propionic acid is obtained from succinic anhydride; (3) the products of the air oxidation of naphthalene vapour over a vanadium pentoxide catalyst are mixed with nitrogen and steam and passed over active silica gel, yielding a mixture of benzoic acid with phthalic acid and anhydride. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of metals, such as aluminium, as catalysts, and amongst the oxides specifies those of zinc. cadmium, lead. and bismuth. It also includes the following two examples, (1) benzoic, acid is obtained by passing nitrogen saturated with water vapour and phthalic acid vapour over the oxides of bismuth and aluminium deposited on pumice; (2) the products of the air oxidation of naphthalene vapour over a vanadium pentoxide catalyst are passed over activated zinc oxide, yielding benzoic acid; the air and naphthalene mav be preheated by the hot oxidation products, whilst the issuing gases may, after condensation of the product and preferably also after separation of the carbon dioxide, be reintroduced with fresh air and naphthalene vapour into the process. This subjectmatter does not appear in the Specification as accepted.
Patent GB-408033-A (GB)
Title: Improvements relating to the protection of the insulating covering of electrical conductors from corona or glow discharge
IPC: H02K3/40
Filed: 1932-10-21
Abstract: 408,033. Conductors and insulators for dynamo-electric machines. KUYSER, J. A., Knowle Lodge, Sibson Road, Sale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Oct. 21, 1932, No. 29514. [Class 35.] To protect the conductors of high voltage machines from corona tapering strips of highresistance material, such as asbestos, are applied to the surface of the conductor in such a way that the distances between various portions of the strip or strips are not greater than can be covered by creepage, and the strips are connected to the iron of the machine. Fig. 1 shows such a strip 3 coiled helically on the conductor 2. Fig. 2 shows a ring 4 of high resistance material encircling the conductor and provided with tapering projections 5, 6 arranged along the conductor. Such an arrangement may be combined with a strip such as shown in Fig. 1, as indicated by the line 7, or several rings with projections may be employed, the projections on successive rings being staggered. The strips may be covered with insulating tape, which may be varnished.
Patent GB-791996-A (GB)
Title: Apparatus for cutting a pleated sheet into pleated units
IPC: B26D5/20
Filed: 1956-09-27
Abstract: 791,996. Cutting-apparatus. FRAM CORPORATION. Sept. 27, 1956 [Dec, 16, 1955], No. 29548/56. Class 31 (1). Apparatus for cutting an advancing sheet of pleated material into successive lengths each containing a plurality of pleats comprises a guideway along which a length of pleated sheet material is advanced, a series of counting fingers and mechanism for introducing them successively in the preformed pleat folds to count the pleats, and means actuated by said mechanism for severing the sheet when a predetermined number of pleats has been counted. As shown, a sheet P of pleated material, e.g. filter paper, is advanced along an adjustable guideway 11 and through a bent path by means of upper and lower feeding belts 42, 43 and the pleats are engaged in succession by means of series of fingers a, b carried by upper and lower endless chains 19, 20 disposed transversely to the path of travel of the pleated sheet. After a predetermined number of fingers b have engaged the pleats, the pleated sheet is severed along a line 40 by means of a blade 21 carried by the next succeeding finger b<SP>1</SP>. The fingers a, b, which are yieldingly supported by the chains 19, 20 are inclined relatively to the path of travel thereof so that as one finger on one chain engages a pleat, it opens the next pleat for engagement by the next finger on the other chain. The chains 19, 20 pass around sprocket wheels 22, 23, 24 and 25, 26 respectively of which the sprocket wheels 22, 25 are driven. The sprocket wheels 25, 26 are carried by a plate 30 which is adjustable vertically relatively to a plate 28 carrying the sprocket wheels 22, 24. The feeding belts 42, 43 are supported by pulleys 44, 45 and 48, 49 respectively, of which the pulleys 44, 48 are driven. The pulleys 44; 45 are carried by a plate 47 which is adjustable vertically relatively to a plate 51 carrying the pulleys 48, 49. The lower run of the belt 42 is pressed against the pleated sheet by means of adjustable weights 55. The plates 47, 51 are secured to an upright post 57 provided at its upper end with a cylindrical portion 58 which is angularly adjustable relatively to a block 59 which is slidably secured to the plate 28. Specification 775,338 is referred to.
Patent GB-472100-A (GB)
Title: An improved combination outer garment
IPC: A41D3/00
Filed: 1936-10-31
Abstract: 472,100. Hoods &c. and capes &c. DORN, N. F. Oct. 31, 1936, No. 29667. Convention date, Oct. 31, 1935. [Classes 63 and 141] [Also in Group XVII] A hood or helmet B comprise, a substantially crescent-shapec piece 13 and a substantially semicircular piece 14 securec together along their convex edges, the piece 13 being per manently or detachably secured along its concave edge to the neck opening of a cape or coat A. The piece 14 has attached to its straight edge a band 17 which may be turned down at its centre to form a peak, Fig. 7. The hood can be turned down flat at the back, Fig. 2, with the piece 14 innermost and attached to the top edge of the cape by press fastenings 23, 24. For carrying the garment, the hood forms a bag, Fig. 14, which receives the cape ; press fastening elements 23, 25 on the piece 14 and the cape A are engaged and the loop 22 on the back of the cape used as a handle.
Patent GB-1484749-A (GB)
Title: Aluminium alloy
IPC: C22C21/00
Filed: 1975-07-15
Abstract: 1484749 Aluminium alloy VEREINIGTE METALLWERKE RANSHOFEN-BERNDORF AG 15 July 1975 [15 July 1974] 29687/75 Heading C7A  An alloy contains Al Bal with 0À03 max. Mn, 0À06 max. Ti and is solution treated at say 505‹C, water quenched and either aged at RT for 10 days or at 170‹C for 1 hour to give a high strength alloy with good machineability.
Patent GB-174421-A (GB)
Title: Improvements in or relating to distributing valves for steam engines
IPC: F01L21/04
Filed: 1920-10-21
Abstract: 174,421. White & Co., Ltd., J. S., and Forster, A. Oct. 21, 1920. Combined fluid-actuated and mechanical gears with auxiliary valves.-A hollow balanced reciprocating and oscillating auxiliary valve H is arranged transversely within a hollow balanced main valve, and is provided with auxiliary steam and exhaust ports J<1>. J which put the ends of the valve chamber alternately into communication with steam and exhaust through ports and passages G, G<1>, G<3>, E<1>, E<2>, and with main ports K, K<1> which alternately register respectively with ports F', F<2> to supply steam from the chest through the hollow interior of the valve to ports D, C or D<1>, C' communicating with the main cylinder. The mainvalve exhaust port and main outlet are shown at D<2>, B. The cut-off and admission are effected respectively by the longitudinal and oscillating movement of the valve H. The tappet-actuated rod L is eccentrically disposed with regard to the valve H, and is provided with an actuating-pin L<1> engaging a bore in the valve projection, and a handle M for hand working and indicating the position of the main valve. The steam chest is provided with starting-valves N, and the main valve with starting ports N<1>.
Patent GB-239475-A (GB)
Title: Improvements in or relating to fluid-pressure powertransmission apparatus for operating brakes, clutches or other devices
IPC: B60T13/18
Filed: 1924-12-11
Abstract: 239,475. Edge, S. F., (Assignee of Etablissements De Dion Bouton Soc. Anon.). Sept. 4, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Hydraulic transmission apparatus, for use more particularly on motor-vehicles for operating brakes, clutches, &c., comprises a pump 1 which forces oil from a tank 10 to a pipe having a branch leading to a cylinder 2 and a branch leading past a valve 9 to a return pipe 8. The valve 9 is connected to a piston 6 working in a cylinder 5 and adapted to be actuated by a pedal 7. With this construction, when the pedal is depressed to restrict the passage controlled by the valve 9, the pressure generated in the cylinder 2 moves out the piston 3 to operate the brakes &c. and also reacts on the pedal through the piston 6. The pump used may be the one that effects forced lubrication of the engine.
Patent GB-968248-A (GB)
Title: Process and apparatus for vertical arc welding under protective gas
IPC: B23K9/038
Filed: 1962-08-03
Abstract: 968,248. Welding by fusion. ARCOS GES. FUR SCHWEISSTECHNIK. Aug. 3, 1962 [Aug. 31, 1961], No. 29874/62. Heading B3R. In a process of vertical gas shielded arc welding in which the melt is retained by pads moved up the seam, two horizontal streams of shielding gas issue at an angle to each other from a pair of apertures in each pad. Each pad e has a pair of lands g engaging the plates a being welded and a pair of gas passages i communicating with jets p from which gas is blown on to the outer edges of the lands g. Gas supply pipes l are connected to the lower ends of the passages i. The upper ends of the passages i open into a pair of horizontal apertures inclined towards each other and separated by a wedge-shaped portion o. The pads are cut-away above the apertures so that two spreading jets of shielding gas issue from each pad above the weld pool.
Patent GB-897730-A (GB)
Title: Improvements in and relating to methods of purifying substances
Inventor: HARRIS PETER THOMAS
IPC: H01L21/00
Filed: 1958-09-18
Abstract: Silicon is purified by allowing drops thereof to fall through a vacuum or a purifying atmosphere.  As shown, the lower end of a rod of silicon 13 is heated in a silica tube 1 by means of an induction coil 11 so as to form a drop 14 which falls into a silica crucible 9, the rod being lowered as melting proceeds. Hydrogen-containing water vapour may be passed through the tube via inlet 2 and outlet 3 at a rate of 21/min.  The rod may have a diameter of 10 cm. and may be lowered at a <PICT:0897730/III/1> rate of 1 to 10 cm./hr., e.g. 5 cm./hr.  The drops may fall 25 to 50 cm.
Patent GB-762964-A (GB)
Title: Improvements in or relating to photometric apparatus
Inventor: ATTREE VINCENT HORACE
IPC: G01J1/12
Filed: 1953-10-29
Abstract: 762,964. Discharge apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 29, 1954 [Oct. 29, 1953], No. 29903/53. Class 39(1). [Also in Group XX] In photometric apparatus, the luminosity of a lamp filament 1 is measured by its thermionic emission to an anode 4. As shown, battery 5 maintains the anode current at saturation and its electro-motive force is not critical, but resistor 7 and switch 8 are provided for checking that it does not fall below the value required for saturation. Variable resistance 3 adjusts the heating current of the filament 1 and meter 6, which can be calibrated directly in terms of light output, provides a measure of its luminosity. The filament is preferably of pure tungsten and may be designed to avoid the error due to fluctuations in its temperature when the heating current is A.C. A semicylindrical anode may be of nickel but the anode may alternatively be in the form of a wire mesh completely surrounding the filament. The exterior surface of the anode may be of high emissivity to promote cooling and, the interior surface of a low emissivity as is consistent with not changing the light producing property of the lamp when tungsten, evaporated from the filament, condenses on this surface. The interior surface of the anode may be of oxidised nickel. The electrostatic condition inside the lamp may be stabilized by providing an earthed grid therein.
Patent GB-367739-A (GB)
Title: Improvements in or relating to horizontally sliding windows
IPC: E06B3/46
Filed: 1931-10-28
Abstract: 367,739. Horizontally sliding windows. KOLLER, E., 10, Goschenenstrasse, Basle, Switzerland. Oct. 28, 1931, No. 29914. Convention date, Oct. 28, 1930. [Class 20 (iii).] A horizontallysliding sash is provided with offset supporting rollers 12 at its upper edge causing the sash to hang obliquely, in contact with packing strips 15, 25 on the lintel and sill, which strips engage the inner edges of U- shaped channel sash members. The supporting rail 16 and the outer limb of the lower sash nearly touch the sash and sill respectively. To facilitate glazing, one limb of the channel may be made shallow, wooden packing bars 31 being inserted beneath the glass. The packing strip 15 has a horizontal limb extending nearly to the front member of the sash. Fixed windows, with or without hinged sashes, may be combined with the sliding windows. The sashes are preferably made of anticorrosive light metal capable of welding and surface treatment.