baber/WOPTO huggingface dataset:
Patent GB-148643-A (GB)
Title: Improvements in or relating to floating dry docks
IPC: B63B1/02
Filed: 1919-04-30
Abstract: 148,643. Wade, H., (Topping, M. M.). April 30, 1919. Floating docks.-A floating dry dock is lifted and lowered by means of a large number of pontoons 6, which are positioned in open framework consisting of longitudinal members 8, 12, transverse members 9, 11, and vertical members 10. The pontoons 6 have conoidal ends, and the air and water admission and exit valves are controlled by compressed air from a machinery deck 15 supported on a framing 29. Water may thus flow between the pontoons and between the upper and main decks as the dock rises or falls. Fig. 5 shows an upper air-admission valve and lower water-discharge valve. On admitting compressed air to the supply-pipe 79, Fig. 4, a piston 46 is depressed so as to uncover ports 44, 45a and allow air to enter and at the same time a spring-raised rod 47 is forced down to lift the water valve 75 from its seating 55. This valve is provided with radial ports 77, admitting to a hollow skirt 78, and is surrounded bv a bowl 68. A somewhat similar device is shown at 82, Fig. 4, as the waterinlet valve, but in this case the ports 44, 45<a> are omitted so that compressed air acting behind the piston merely serves to open the water-valve. The nozzle 33 is connected to a blow-off valve and pressure-gauge and the pipe 26 to a cut-off valve and pressure-gauge.
Patent GB-1263504-A (GB)
Title: Process for making indium antimonide thin film semiconductor elements
IPC: H01L31/18
Filed: 1969-02-28
Abstract: 1,263,504. Indium antimonide thin films. PIONEER ELECTRONIC CORP. 28 Feb., 1969 [28 Feb., 1968; 23 May, 1968], No. 10914/69. Heading H1K. [Also in Division C7] An indium antimonide semi-conductor element is formed by evaporation of indium antimonide and antimony from a single source on a substrate of, e.g. mica or glass, heated to 420 to 450 C.
Patent GB-1185223-A (GB)
Title: Process for the Production of Bisphenols
IPC: B01J31/10
Filed: 1967-03-08
Abstract: 1,185,223. Bisphenols. UNION CARBIDE CORP. 8 March, 1967 [9 March, 1966], No. 10978/67. Heading C2C. [Also in Division C3] Bisphenols are prepared by reacting a phenol with a ketone in a medium containing (a) an insoluble resin having at least one mercapto group chemically bonded thereto, and (b) a solid insoluble ion-exchange resin having pendant sulphonic acid groups. Examples describe the preparation of 2,2,-bis-(p-hydroxyphenyl) propane.
Patent GB-882126-A (GB)
Title: Improvements in or relating to electrical inverter systems
IPC: H02M7/5383
Filed: 1959-04-01
Abstract: 882,126. Electrical inverter circuits. WESTINGHOUSE ELECTRIC CORPORATION. April 1, 1959 [April 7, 1958], No. 11012/59. Class 40(6). In an inverter, a capacitor is charged from a source through a primary winding of a transformer and a first switching device and then discharged through the winding and a second switching device, feedback windings on the transformer causing the switching devices to be rendered conducting and non- conducting at times determined by the completion of charging of the capacitor. In Fig. 1, a first pair of transistors 19 connected across a D.C. supply are arranged to conduct alternately with a second pair 21 and supply an A.C. signal to a load 13. Assuming transistors 19 are conductive and 17 cut-off, current flows from source 3 through transistors 19 and capacitor 61 into the load 13. Current also flows from the source through transistors 19 into a circuit comprising inductor 80, capacitor 79 and a non-saturating transformer 63, the voltage induced in the secondary windings of this transformer maintaining transistors 19, conductive and 21 cut-off. This current continues until capacitor 79 is fully charged whereupon voltage induced into the secondary winding falls to zero and transistors 19 are cut-off. Capacitor 79 then commences to discharge through winding 67, the current being in such a direction as to render transistors 21 conductive and hold transistors 19 cut-off. Capacitor 61 now discharges producing a current in the opposite direction in load 13. This continues until capacitor 79 is discharged to its minimum value when the circuit reverts to original state. The frequency of operation depends upon the resonant frequency of inductor 80 and capacitor 79. Inductor 80 may however be omitted, when the frequency will depend upon the time constant of capacitor 79 and the resistance of the circuit in series therewith. In an alternative arrangement (Fig. 2, not shown) single transistors replace the transistor pairs and the load 13 is connected in series with circuit 80, 79, 67.
Patent GB-628114-A (GB)
Title: Improvements in or relating to processes for producing products containing copper oxychloride
IPC: C01G3/06
Filed: 1946-04-10
Abstract: Mixtures containing copper oxychloride are produced by the oxidation of cuprous chloride which may contain an admixture of cuprous oxide produced by the electrolysis of an alkali metal chloride using copper containing anodes (see Group XXXVI).  The oxidation may take place with the electrolytic cell, the oxidizing agent being produced in the cell or introduced from the outside, or the primary products of the electrolysis may be separated from the electrolyte and oxidized exteriorly of the cell.  The amount of oxidation may be varied to give mixtures of varying proportions of copper oxychloride and cuprous oxide.  The final products may be treated with wetting or dispersive agents.
Patent GB-706712-A (GB)
Title: Process for the production of aliphatic ethers
IPC: C07C41/28
Filed: 1951-05-11
Abstract: A mixture of saturated and unsaturated aliphatic ethers is produced by subjecting an acetal to decomposition at elevated temperature and at a pressure in the range 1-20 kg. per sq. in. The acetals used as starting materials are products of a reaction between aldehydes and alcohols.  The acetals may be decomposed, if desired, by passing them over a porous material, for example, silica gel, aluminium oxide, kieselguhr or activated bleaching earths, as catalysts at a temperature in the range 250 DEG -350 DEG C. or may be decomposed without a catalyst, preferably by heating in fractionating columns at a temperature in the range 90 DEG -300 DEG C. The required acetal can be made, for example, by reacting one molecule of butyraldehyde with 2 molecules of butyl alcohol or by reacting propionaldehyde with a suitable alcohol with elimination of water.  When decomposing the acetals a decomposition of 40-80 per cent. is desirable and the undecomposed residue may then be recycled with fresh acetal feedstock.  When the acetal obtained from butyraldehyde and butyl alcohol is used as starting material the reaction mixture may contain, in addition to the ethers which are formed (dibutyl ether and butyl crotyl ether) butyl alcohol, butyraldehyde and crotonaldehyde: various methods of separating the components from the reaction mixture are given. Advantageously an amount of aldehyde is added to the reaction mixture after the decomposition of the acetal equivalent to the amount of alcohol present so that an addition of a condensation agent, preferably hydrochloric acid, acetals are formed which can be subjected to another decomposition process.  In the examples (a) butyraldehyde and butyl alcohol are condensed in the presence of hydrochloric acid to give an acetal mixture which is decomposed by heating to give dibutyl ether and butyl crotyl ether; some butyraldehyde, crotonaldehyde and butyl alcohol are also formed; (b) an acetal mixture obtained as in (a) is heated and passed over silica gel to give a mixture of crotyl butyl ether and dibutyl ether in addition to some butyraldehyde, crotonaldehyde and butyl alcohol; and (c) the acetal mixture obtained as in (a) is heated to give a mixture of crotyl butyl ether, dibutyl ether, and butyl alcohol; the mixture is heated with more butyraldehyde and hydrochloric acid and condensed in two more stages to give a fraction which consists almost entirely of ethers.
Patent GB-438407-A (GB)
Title: Apparatus for measuring or indicating the state of charge and discharge of an electric accumulator battery
IPC: G01R1/20
Filed: 1935-04-10
Abstract: 438,407. Current and pressure meters. BRITANNIA BATTERIES, Ltd., Union Street, Redditch, Worcestershire.-(Accumulatoren Fabrik Akt.-Ges. ; 3, Askanischer Platz, Berlin) April 10, 1935, No. 11119. [Class 37] The state of charge and discharge of an electric accummulator is determined by employing a voltmeter with a compensating circuit so that additionally a part of the charging or discharging current passes through the voltmeter coil. An indication by optical or acoustic signals of the condition may be given by relay or switching means. A voltmeter coil m is connected in series with a resistance r across the battery B, compensation being effected by current shunted from a resistance w and a variable shunt resistance v, the shunt current opposing or strengthening the terminal voltage current. In another circuit arrangement the voltmeter coil is connected across the resistance wand intermediate further resistances in parallel across the battery.
Patent GB-1222247-A (GB)
Title: Hydraulic control valve with void prevention means
IPC: F16K11/07
Filed: 1968-03-07
Abstract: 1,222,247. Valves. KOEHRING CO. 7 March, 1968 [1 Sept., 1967], No. 11162/68. Heading F2V. A spool valve 18 controlling the supply and exhaust of pressure fluid to and from a double-acting jack 6 through two service passages A, B, is provided with means for preventing cavitation in the expanding end of the jack cylinder when the jack piston 8 is descending rapidly under the action of the load 9, in a " float " position of the valve as shown. In this position both service passages and the inlet 19 communicate with outlet 15. Return fluid to a service port B, which can pass from a return passage 26 through a restricted passage 43 to the drain port 15, builds up an increased pressure in the return passage. This passage communicates through a feedback passage 31 and check valve 32 with the other service port A. Thus when the pressure supplied to port A by a pump through inlet 19 falls, the supply is supplemented from the feedback passage 31. Branch passages 23, 24 adjacent the service ports are connected with the inlet 19 through a common check valve 25. The spool valve is of open-centre type and in a neutral position of the spool to the right of that shown, the inlet 19 communicates directly with an outlet 20 when the service ports are isolated. The flow then goes through a spring-loaded valve 36 containing the restricted passage 43. There is a " raise " position to the right of neutral, and a " power down" position between neutral and that shown. In the " power down" " position, service port A is supplied from passage 24 and service port B communicates with return passage 26. Where the jack is arranged to pull up the load, the connections to the jack being reversed, cavitation is especially likely and is likewise prevented. In another embodiment, two spool valves (18) are provided in a sectional valve body (105) for controlling separate jacks in parallel. In a modification, the restricted passage 43 is replaced by a passage (128) in the valve housing. In other modifications a check valve (163 or 63) is fitted either between the passage 26 and the restricted passage or bypassing the restricted passage, Figs. 4-6 (not shown).
Patent GB-894802-A (GB)
Title: Improvements relating to thrust reversing units for exhaust gas discharge ducts
IPC: F02K1/58
Filed: 1959-04-02
Abstract: 894,802. Jet propelled aircraft. UNITED AIRCRAFT CORPORATION. April 2, 1959 [April 2, 1958], No. 11240/59. Class 4. A thrust reversing unit for an aircraft exhaust gas discharge duct defining an outlet having substantially straight side edges, comprises plate members disposed substantially parallel to and coextensive with the edges and pivotally supported for movement between a first position in which they co-operate with part of the duct to form an aerofoil shaped structure in the gas discharge path, and a second position in which they form a structure of W-shaped cross-section adjacent the outlet. Fig. 5 is a horizontal section through a nozzle and thrust reversing members, with other parts shown in plan. The .nozzle is shaped as a vertical slot, having long side walls 42, 44. Supports 47 (not shown) extend horizontally across the nozzle, and support a vertical strut 46. There are two thrust reversing members 50 and 52, the latter shown, isometrically in Fig. 6, and comprising spaced parallel plates 58 and 60 connected by bars 64, and having bores 96, 98 aligned with a bore 48 in strut 46 to receive a pivot pin 70. Member 50 similarly comprises plates 54, 56 connected by bars 62. In the thrust reversing position shown, the four plates form a W-shaped structure to deflect the gases from the nozzle. To obtain normal thrust, jacks 92 are contracted, pivoting the members about pin 70. Plates 54 and 58 are swung to positions continuing the line of an engine nacelle 32, and so that the surfaces 80 on plates 54, 58 form a divergent continuation of the convergent nozzle walls 42, 44. Plates 56 and 60 are swung together to meet on the vertical plane of symmetry of the engine, and together with strut 47 form an aerofoil shaped strut in the exhaust gas stream. Supports 47 are preferably disposed so that in the normal thrust position, bars 62, 64 abut the supports and form aerofoil shaped members with the supports. Members 50 and 52 are designed so as to be aerodynamically balanced about pin 70. Specifications 600,376, 777,577 and 894,800 are referred to.
Patent GB-1026058-A (GB)
Title: Improvements in or relating to fuel element supports in nuclear reactors having vertical ducts
Inventor: DMITRIEFF ANATOLE
IPC: G21C3/38
Filed: 1965-03-17
Abstract: 1,026,058. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. March 17, 1965 [March 17, 1964], No. 11297/65. Addition to 907,625. Heading G6C. A fuel element comprises a fuel member supported within a graphite sleeve by means comprising a disc-shaped graphite member positioned centrally at the base of the sleeve and connected with the sleeve by means of two identical metal hairpin-like members threaded directly through both the sleeve and the discshaped member in two directions perpendicular to one another, the ends of the two hairpin-like members engaging in a circumferential groove in the outside of the sleeve where they are joined together by welding.
Patent GB-640259-A (GB)
Title: Improvement in built-up structural elements
IPC: E04C3/04
Filed: 1947-04-29
Abstract: 640,259. Girders and columns. FISCHER, H. C., and HIGGINS, A. H. W. April 29, 1947, No. 11423. Convention date, May 3, 1946. [Class 20(ii)] A girder comprises upper and lower chords 2, 4, having nailing grooves 10, 12 on each side of a web 6, which are formed by bending the metal of the chord and the grooves have curved ribs to grip the nails the ends of which, when driven are bent and clinched by the tubular bottom of the groove. The opening of the groove may be flared. The web 6 may be bar stock bent to provide a plurality of struts welded to the chords at the bends.
Patent GB-715231-A (GB)
Title: Improvements in or relating to alkyd resins
IPC: C08G77/445
Filed: 1952-05-06
Abstract: An alkyd type resin is made by reacting (1) glycerine or pentaerythritol by heating with (2) a diester of terephthalic acid, isophthalic acid, a stilbene dicarboxylic acid, a diphenic acid, a tolane dicarboxylic acid or a dibenzyl dicarboxylic acid (the structure of the monocyclic aryl carboxylic acids being such that the carboxy groups are not ortho to each other) in which the alcoholic substituents of the ester are alkyl radicals, and (3) a silane or siloxane of the average general formula <FORM:0715231/IV (a)/1> where each R is an alkyl or monocyclic aryl, alkoxy or aryloxy radical, m has a value from 0 to 3, n has a value from 0.05 to 4, the sum of m+n being not greater than 4, and X is an alkoxy or aryloxy radical or a chlorine or bromine atom, the reactants (1) and (2) being employed in such an amount that the ratio of OH to the corresponding ester radical is from 4 : 1 to 1.001 : 1, and the reactant (3) is present in amount of 0.1 to 85 per cent. by weight of the total reactants. The organosilicon reactant is preferably incorporated in the alcohol-ester resin after removal of the theoretical amount of alcohol from transesterification of the acid-ester and the polyhydric alcohol.  Reaction of the organosilicon component with the ester resin is effected preferably at 180 DEG  to 260 DEG C. and the resulting products are cured at 200 DEG C. or above.  The resins may be prepared in the presence of solvents such as quinoline, isoquinoline, tributylamine, triisobutylamine, triamylamine, isophorone, acetophenone, acetonyl acetone, dimethylformamide, diethylformamide, dimethyl acetamide, 2-ethylhexyl acetate, lauryl acetate, 2-ethylhexyl butyrate, butyl carbitolacetate, butyl cellosolve acetate, amylcarbitol acetate, diethylene glycol dipropionate, phenoxyethylene glycol acetate, diethylcarbitol, cresol and toluene; the solvent being present in amount sufficient to prevent gelation of the resin.  The preferred aryl polycarboxylic acid diesters are formed from an alcohol from methanol to octanol. The resins, with or without conventional fillers, catalysts and mould lubricants are used as magnet wire enamels, for panel coating of automobiles, furnaces, stoves and smokestacks and for laminating and moulding purposes.  In the example, phenylmethyldiethoxysilane was reacted with the product obtained by reacting glycerine and diethylterephthalate in the presence of zinc and calcium oxides.  The product was fairly soluble in cyclohexanone.  Specifications 583,754, 650,247 and 685,173 are referred to.
Patent GB-412532-A (GB)
Title: Improvements in thermionic amplifiers
IPC: H03D1/16
Filed: 1934-04-16
Abstract: 412,532. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. April 16, 1934, No. 11443. Convention date, May 18, 1933. [Class 40 (v).] In a high-frequency amplifier with the tunable circuit CL coupled to the grid of a valve through a condenser, the grid leak R is connected to a point on the coil L such that at least when receiving one wave-range no high frequency voltage is set up across the grid leak. The arrangement obviates the damping due to the grid leak and is preferably operable on the shorter wave range since amplification and selectivity are in general greater on the longer wave range.
Patent GB-993919-A (GB)
Title: Improvements in pressure-increasing devices for water conduit systems
IPC: F04D7/04
Filed: 1963-03-22
Abstract: 993,919. Centrifugal pumps. F. W. PLEUGER, [trading as PLEUGER & CO.]. March 22, 1963 [March 23, 1962], No. 11452/63. Heading F1C. In a pressure-increasing device for water conduit systems, which has a centrifugal pump coupled to an electric motor 6 cooled by water flowing through a pipe in which the pump is installed, the pump impeller 4 rotates outside the liquid flow proper so that it does not form any flow resistance in the conduit when the device is switched off. The pump may be built into the conduit system in a horizontal or a vertically upward or downward direction. The motor 6 is filled with cooling water and additionally it may have a cooling jacket 15 subjected to the water pressure in the conduit system. The motor shaft 5 is supported by bearings 10, 11 and a thrust bearing 12. In an alternative embodiment (not shown), the motor-pump unit is mounted by webs coaxially within a large diameter duct connected upstream and downstream with a smaller diameter conduit.
Patent GB-1034704-A (GB)
Title: Apparatus for tire repair
IPC: B29C73/08
Filed: 1964-03-18
Abstract: 1,034,704. Repairing tyres. G. HERMAN, and J. J. SCHORSCHER. July 3, 1964 [March 18, 1964], No. 11466/64. Heading B7C. Apparatus for applying pressure to a patch 12 adhesively covering a heat-cured plug 11 comprises an inflatable bag 13, plates 17 swivably located in grooves 16 in a plate 15 to transmit pressure against the bag, a flange 24 on each plate extending over the adjacent bead region, and detachable chains 23 for limiting radially inward movement of the plates on inflation of the bag. The plates 17 are arcuately contoured adjacent the flanges 24 to prevent them from cutting into the bead regions. A pair of detachable bracing members 20 is provided to limit rocking of the plates 17. For tyres with more widely spaced beads, the members 20 are interchanged with wider members tapering away from the flanges 24 (Fig. 3, not shown).
Patent GB-1418192-A (GB)
Title: Assemblies of structural members
IPC: E04B1/24
Filed: 1973-03-09
Abstract: 1418192 Building structures SANDERS & FORSTER Ltd and F J ROBERTS 19 Feb 1974 [9 March 1973] 11479/73 Heading E1K A lattice beam 11 or 23 is connected adjustably to a column 10 by two connections, one for the end of the upper chord which is non-adjustable, e.g. by bolts 14 or 25 passing through a bracket 12 or 24 on the beam and into a plate 13 welded on the column, and one for the end of the lower chord which is adjustable by the provision on the' column 10 of a threaded member or members, e.g. studs 17, each of which is provided with two nuts engaging opposite sides of a part of the beam, e.g. a bracket 15 or 26, so that the position of the end of the lower chord with. respect to the column can be adjusted. As shown, 'beam 11 is a main beam and bracket 15 has two slots 16 through which two studs 17 pass, the studs each carrying the two nuts and being secured to the column by two further nuts one bearing against each of two opposite sides of the column, the projecting ends of the studs on the opposite side of the column being adapted, by means of further nuts, to secure a second main beam, if desired. Bolts (Fig. 4, not shown) may be used in place of studs if only one main beam is to be secured to the column. Subsidiary beams, e.g. beam 23, are secured similarly to other sides of the column, excepting that the slots 27 in the bracket 26 are arranged one above the other, only one of these slots receiving a stud 17 so that the latter can be positioned in a plane above the studs securing the main beam(s), as shown, where the studs would otherwise interfere with each other. The column includes sufficient perforations 20 for this purpose, and to enable two subsidiary beams 23 to be mounted to the column side by side if desired.
Patent GB-310374-A (GB)
Title: Improvements in draught excluders for windows and the like
IPC: E06B7/22
Filed: 1929-04-15
Abstract: 310,374. Fuchs, F., and Stepßn, A. April 24, 1928, [Convention date]. Draught excluders. - A draught excluder for windows, doors, and the like, comprises a padded strip 5 resiliently supported by spaced spring blades 3 inserted in slits in a piece 1 fixed to the frame. The padding may be of cotton wool surrounded by fabric 4 which is connected to the piece 1. The springs may be inserted in the piece 1 and secured therein by pins. The strip may be composed of rubber secured to a plate and provided with a flap connected to the piece 1, the springs being fixed to the strip by a clamping plate and screws in this modification.
Patent GB-600769-A (GB)
Title: Improvements in and relating to bicycles and the like, especially with auxiliary engines
IPC: B62K11/06
Filed: 1945-05-07
Abstract: 600,769. Cycle &c. frames. SOC. D'APPAREILS DE CONTROLE ET D'EQUIPEMENT DES MOTEURS, S.A.C.E.M. May 7, 1945, No. 11628. Convention date, April 24, 1942. [Class 136 (iii)] The main member of a bicycle frame comprises a single tube 1 of relatively large crosssection, bent to a relatively large radius of curvature and connected to the crank bearing 2 by intermediate members. These intermediate members 3, 4 are formed of strip metal, but may be metal plates or constitute a tool box or petrol tank. The internal diameter of the tube is sufficient for it to serve as a petrol tank and for the reception of an electrode during the welding of the intermediate members thereto. An auxiliary engine 18 of the kind having a driving wheel bearing directly on the front wheel of the bicycle may be provided. The application to tandems, tricycles, wheeled chairs and other light vehicles is mentioned.