baber/WOPTO huggingface dataset:
Patent GB-1536011-A (GB)
Title: Process for the production of urea-formaldehyde adhesives or resins and products obtained thereby
IPC: C07C47/058
Filed: 1976-02-18
Abstract: 1536011 Producing UF resins directly from catalytically oxidized methanol P M PUIG 18 Feb 1976 [13 May 1975] 6356/76 Heading C3R [Also in Division C2] A process for the production of urea-formaldehyde adhesives or resins process comprises the stages of: (a) catalytically oxidizing methanol with air; (b) condensing the gases emanating from the catalytic oxidation of the methanol, whereby condensable products therein are condensed in the form of a solution; (c) separating the solution containing condensed products obtained in stage (b) from the uncondensed gases remaining after said condensation stage; (d) cooling the uncondensed gases from stage (c) and washing the cooled gas in a washing column with a solution comprising cold polymerized formaldehyde which takes up the methanol and formaldehyde present in the uncondensed gases; (e) distilling the solution obtained in stage (c) in order to recover separately methanol and a concentrated aqueous formaldehyde solution, the formaldehyde content of which is at least partially in polymerized form; (f) distilling the solution obtained in stage (d) in order to recover the methanol taken up into said solution and to isolate the formaldehyde in the form of an aqueous solution thereof containing polymerized formaldehyde; (g) passing a portion of the aqueous formaldehyde solution obtained in stage (f) to distillation stage (e) and recycling another portion of the aqueous formaldehyde solution obtained in stage (f) to step (d) as the cold polymerized washing solution therein; and (h) mixing the concentrated aqueous solution of formaldehyde obtained in stage (e) with urea under conditions of predetermined pH and temperature in order to obtain urea-formaldehyde adhesives or resins. Distillation stages (e) and (f) may be carried out in a single column.
Patent GB-486232-A (GB)
Title: Improvements in case-hardening iron and steel and in salt baths therefor
IPC: C23C8/46
Filed: 1937-03-03
Abstract: A salt bath for case-hardening iron and steel comprises 10-50, preferably 15-45, per cent of sodium cyanide, 15-60, preferably 25-30, of barium carbonate, 4-15 of activated carbon of low combustibility, and from 15-70 of a salt molten at the case-hardening temperature, such as sodium or potassium chloride or a mixture of these salts, the amount of this salt being such as to render the bath molten.  Barium oxide may be used instead of barium carbonate and the bath may also contain 15-30 per cent of barium chloride.  The activated carbon may be that prepared by the processes described in German Specifications 453,972, 466,358, and 488,669.  British Specification 386,076 and U.S.A. Specification 2,025,050 also are referred to.
Patent GB-550217-A (GB)
Title: Improvements in or relating to electric relay or indicator devices
IPC: H01H35/40
Filed: 1942-05-12
Abstract: 550,217. Fluid flow indicators. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. May 12, 1942, No. 6447. Convention date. May. 20, 1941. [Class 97 (ii)] [Also in Group XXXVII] When the flow of cooling liquid or: other fluid through a conduit 34 stops or' slackens, a portion of the conduit which is electrically heated becomes hotter causing the operation of a thermal element such as a bimetal strip 47 which cause: the opening of. contacts 12 or the actuation of an indicator The heated portion of the conduif forms part of the secondary 39 or a transformer and opening of the contacts 12 serves to break the circuit of the primary 41 as well as a control circuit. The invention is shown applied to a cooling system for electric discharge tubes.
Patent GB-685354-A (GB)
Title: Improvements in mountings for inductance coils and the like
IPC: H01F27/02
Filed: 1951-03-19
Abstract: 685,354. Damping vibrations. PHILIPS ELECTRICAL INDUSTRIES, Ltd. March 19, 1951 [March 22, 1950], No. 6513/51. Class 108 (iii). [Also in Group XXXV] An anti-vibration mounting comprises U- shaped elements 4, the ends of the limbs 5 thereof being connected by means of members 1, 8 to parts of an apparatus to be mounted which parts vibrate substantially at right angles to the limbs 5 but in opposite directions by equal amounts, the mounting being so constructed that the limbs 5 are weak, mechanically, in the plane of the U whilst the web 6 between the limbs is rigid in the same plane so that the web 6 is caused to vibrate in no direction at an amplitude exceeding <1>/10 of the amplitude of the vibrations of the parts of the apparatus to be mounted. The web 6 is strengthed by means of a flange 7. Specification 685,356 is referred to.
Patent GB-1076248-A (GB)
Title: Thiolcarboxylic acid esters and process for their production
Inventor: WILLIHAHN
IPC: A01N33/10
Filed: 1966-02-15
Abstract: The invention comprises compounds of formula <FORM:1076248/C2/1> wherein R1 is a possibly substituted aliphatic hydrocarbon radical, X is H, halogen or alkyl, Y is dialkylamino or alkoxy and n is 1-4, excepting the compounds where X is H, R1 is Me and Y is 4-MeO or 4-Me2N.  The compounds are prepared by acylating the corresponding thiophenol with a carboxylic acid, anhydride or halide, or with a ketene, providing the group R1C=O.ALSO:Weed control compositions for combatting both terrestrial and aquatic plants contain a compound of formula <FORM:1076248/A5-A6/1> where R1 is a possibly substituted aliphatic hydrocarbon radical, X is H, halogen or alkyl, Y is dialkylamino or alkoxy and n is 1-4, in admixture with solid carrier, or liquid carrier and surface active agent.  These compounds may otherwise be applied alone.  Specified formulations are solutions, suspensions, emulsions, powders, pastes and granulates.
Patent GB-1278013-A (GB)
Title: Process for producing citric acid and isocitric acid
IPC: C12P7/48
Filed: 1970-02-11
Abstract: 1278013 Citric acid KYOWA HAKKO KOGYO CO Ltd 11 Feb 1970 [14 Feb 1969] 6579/70 Heading C2C Citric and isocitric acids are prepared by culturing Candida zeylanoides under aerobic conditions in aqueous nutrient medium containing a carbon source, a nitrogen source, inorganic compounds and nutrients. A strain or mutant strain A.T.C.C. 15585 is preferred and the hydrocarbons may be straight or branched chain alkanes, alkenes, mixed hydrocarbons such as kerosene, light and heavy oils, paraffin and gas oils and petroleum imides, sugars and sugar alcohols or organic acids. Inorganic or organic nitrogen compounds or natural substances containing nitrogen are also mentioned. The citric and isocitric are recovered from the liquor by ion-exchange treatment, extraction, distillation or absorption.
Patent GB-551606-A (GB)
Title: Improvements in and relating to enamel compositions
IPC: C03C3/066
Filed: 1942-05-15
Abstract: 551,606. Vitreous enamels. BRITISH THOMSON-HOUSTON CO., Ltd. May 15, 1942, No. 6643. Convention date, May 20, 1941. [Class 56] An enamel, especially adapted for application as a coating to glass bulbs or tubes, consists of a zinc borosilicate composition of a low melting- temperature. The composition comprises boric oxide and silica in approximately equal amounts and together about half the total weight, the zinc oxide content being at least 26 per cent. The oxides of aluminium, cadmium, and barium are included, their combined weight being 10-15 per cent. of the whole, and 8-15 per cent. of alkali oxides are also included. A suitable enamel. consists of 25-28 per cent. of SiO 2 , 1-4 per cent. of Al 2 O 3 , 4-5 per cent. of CdO, 26-30 per cent. of ZnO, 5-7 per cent. of BaO, 20-24 per cent. of B 2 O 3 , 0.6 per cent. of As 2 O 3 , 4-7 per cent. of K 2 O, and 4-7 per cent. of Na 2 O.
Patent GB-789545-A (GB)
Title: Improvements in and relating to electric fuses
Inventor: SUGDEN ERIC WILLIAM
IPC: H01H85/10
Filed: 1955-03-08
Abstract: 789,545. Cut-outs. PARMITER, HOPE & SUGDEN, Ltd. Feb. 28, 1956 [March 8, 1955], No. 6786/55. Class 38 (1). A bimetallic fuse element comprising pairs of high melting point elements 10, 12 of tinned copper connected together by a low melting- point element 14 of a lead-tin alloy in which the high melting-point elements have narrow regions of reduced cross-section provided either by a series of holes 16, 18 or shallow grooves 20, the width of each region of reduced cross-section being <SP>1</SP>/ 16  inch or less. Specifications 669,378 and 673,002 are referred to.
Patent GB-1196092-A (GB)
Title: A Process for the Manufacture of Chromium Powder
IPC: C22B34/32
Filed: 1968-02-12
Abstract: 1,196,092. Production of Cr powder. OFFICE NATIONAL D'ETUDES ET DE RECHERCHES AEROSPATIALES. Feb. 12, 1968 [Feb. 28, 1967], No.6867/68. Heading C7D. Chromium oxide powder masses between 1 and 10 hg. in weight contain Mg ingots embedded therein and are heated to distil the Mg and so reduce the oxide powder, the powder masses being thermally insulated from each other. In Fig. 1 of the drawings the powder 26 and the ingot 25 are contained in a dish 22 (e.g. of iron or mild steel) which rests on an insulating layer 24 [e.g. of powdered Al 2  O 3  or MgO or an agglomerated disc thereof see Fig. 3 (not shown) or a disc of porous carbon] in a graphite crucible 18. The enclosure 15 is heated by resistance heater 12 (which may be divided into vertically distributed sections which may be independently controlled) and an inert gas (e.g. Ar) may be introduced through passage 27.
Patent GB-196158-A (GB)
Title: Improvements in and relating to internal combustion engines
IPC: F16H23/06
Filed: 1922-03-08
Abstract: 196,158. Almen, J. O. March 8, 1922. Crank linkages.-In engines having pistons connected by a wobbler disc to the main shaft,. which is parallel to the cylinders, bearing-blocks 18 arranged at opposite sides of the disc 10 are formed with ribs 19 engaging circumferential grooves in the disc, and have their outer surfaces curved to engage similarly curved blocks 23 which fit with longitudinal and circumferential play in lateral bores 16 formed in the pistons 4. In modifications, the ribs 19 may be on the disc and the grooves in the blocks 18; or the blocks 18 may be formed integral with the disc 10.
Patent GB-376251-A (GB)
Title: Improvements in or relating to chairs, seats, stools, stands, or the like
IPC: A47C5/06
Filed: 1931-03-05
Abstract: 376,251. Seats, stands, &c. BUTTERFIELDS, Ltd. and BUTTERFIELD, A., Levis Motor Works, Station Road, Stechford, Birmingham. March 5, 1931, No. 6881. [Classes 52 (ii) and 52 (v).] A sectional structure for use in the construction of seats, stools, stands, &c. comprises a plurality of tubular sections formed with flush telescopic spigot and socket detachable joints, and includes a rigid bracing member, forming also an operative part of the structure, which bracing member has socket joint engagements with tubular sections of the structure such that the flush spigot and socket joints are locked in engagement. A chair constructed in accordance with the invention is shown in Fig. 2, the side members 1, 2 engaging the transverse members 11 by means of the spigots 10, and being held in engagement by the bracing member 15, 17. A modification is shown in Fig. 8. The members 3 may be formed as rockers.
Patent GB-176796-A (GB)
Title: Improvements in or relating to discharge tubes for use in converting sound waves into light variations
IPC: G11B7/00
Filed: 1922-03-08
Abstract: 176,796. Nakken, T. H. March 9, 1921, [Convention date]. Drawings to Specification. Vacuum tubes.-A discharge tube, used in photographic sound-recording, is of the Gehrke tube type, and has two flat electrodes each insulated on one side. In use. a luminous film isproduced only on the non-insulated surfaces of the electrodes. The tube is filled with rarefied gas, such as nitrogen.
Patent GB-224573-A (GB)
Title: Improvements in or relating to multi color kinematograph and other films
IPC: G03B33/00
Filed: 1923-05-18
Abstract: 224,573. Thornton, J. E. May 18, 1923. Addition to 224,569. Colour photography; films with multiple sensitive. layers. - A four-colour built-up kinemato- -graph positive film as described in the parent Specification comprises two thin component filmstrips cemented together, each strip carrying two partial images printed photographically on opposite sides of the strip. A similar three-colour film is obtained by duplicating one of the colour images on both strips. The strip material comprises a celluloid base, 0.001 inch thick, carrying on each side a sensitive colloid layer joined to the base by a substratum, a wash-out dye being included either in the, colloid layers or in the substratum to prevent the light used in printing one layer from reaching the other layer. The colloid mav be sensitized with bichromate or silver salts, and each layer may be uncoloured, and dyed after development &c., or be ready-coloured with the colour of the partial image which is to be printed in it. Preferably, double-width material is used, carrying on each side two parallel colloid layers, which are coloured during manufacture with the appropriate partial colours; in this case the material is not slit for cementing until all four images are completed on it. Registration is secured by accurately punched perforations, and the strips may carry identification marks to facilitate assembling. Printing may be effected either from four partial negatives, or from two screen-platenegatives in which the images are formed in alternating dot, line, or other pattern. Specifications 9324/12, and 14.340/12, are referred to.
Patent GB-437785-A (GB)
Title: Improvements in or relating to guards for seedlings and the like
IPC: A01G13/04
Filed: 1935-03-05
Abstract: 437,785. Seed and plant protectors. FAIRBANK, H. N., The Grove, Clifton, Bristol. March 5, 1935, No. 6932. [Class 6 (ii)] A guard for seedlings &c. comprises a twolegged hoop 1 of thin strip metal which is tubular, or is curved transversely or bent into channel shape in section, ears or tongues 3, around or under which wire or thread may be secured, being formed along the central line by stamping out U- shaped slots. The strip may be bent into arched, semicircular, semi - elliptic, square, angular-cornered, polygonal, or other shape, and the tongues 3 may be bent up or left in the plane of the strip.
Patent GB-271970-A (GB)
Title: Improvements in or relating to cameras for use in stereoscopic kinematography
IPC: G03B35/00
Filed: 1926-03-13
Abstract: 271,970. Jenkinson, E. March 13, 1926. Stereoscopic kinematography. - In cameras comprising two spaced objectives, and prisms for alternately directing the images produced by the objectives on to consecutive image areas on the film, the whole of the prism system is mounted in a reciprocatory box. As shown in Fig. 2, the prism box J is reciprocated vertically by a cam G engaging flanges H, I on a plate g<1> connected to the box J by rods h<1>, h<2>, the cam being carried by a shaft F provided with a counterweight f<2> and driven by gearing from the operating handle B. The box J contains two pairs of prisms RS and PT, Fig. 6, one above the other. The prisms alternately direct the rays from lenses in front of the box on to the film behind it, and portions of the front of the box alternately cut off the light from the prisms; a rotary shutter with one opening is provided behind the box. The lenses are carried by a removable slide (not shown), have separately adjustable stop apertures, and are connected by a chain so that they may be focussed in unison. The lens slide may be replaced by a. slide carrying one lens, when non-stereoscopic images are to be taken, the prism box being then removed. In a modification, each pair of prisms may be replaced by a single rhomboid prism, and, in a further modification, the prisms may be carried by a horizontally reciprocating prism box.
Patent GB-929290-A (GB)
Title: Improvements in and relating to ultrasonic inspection apparatus
Inventor: BUCHAN WILLIAM RAYMOND
IPC: G01N29/265
Filed: 1960-02-29
Abstract: 929,290. Ultrasonic inspection devices. KELVIN & HUGHES Ltd. Feb. 20, 1961 [Feb. 29, 1960], No. 7062/60. Addition to 845,797. Class 40 (7). The acoustic curtain interposed between the ultrasonic pulse transmitter and receiver in the parent Specification has a length (parallel to the plane of the curtain) at least twice the length of the wave transmitting and receiving surfaces in the same direction, and the transmitter and receiver are movable in that direction relative to the curtain. In the embodiment the lower edge of acoustic curtain 10 is shaped to correspond to the surface of test piece 11 in the direction 24 and is adjustable in height above the test piece surface. Curtain-supporting block 12 includes grooves 19 whereby probe 20 is traversed across the test-piece; and block 12 is provided with end rollers 15 arranged to run on rails 16 on the edges of liquid container 17. Echoes received by transducer 22<SP>1</SP>, Fig. 2, deflection-modulate cathode-ray tube 30 via adjustably-delayed gate 28 to isolate flow echoes from boundary echoes; the gate output may actuate an alarm.
Patent GB-735787-A (GB)
Title: Improvements in and relating to stereoscopic picture mounts
IPC: G02B27/22
Filed: 1953-03-16
Abstract: 735,787. Picture mounts. FOY, W. G. FEUCHTWANG -. June 16,1954 [March 16, 1953], No. 7150/53. Class 11. A mount for a pair of stereoscopic pictures 2 is formed with extensions at the top or along one or both sides for the reception of an identification picture 3 and to allow space 4 for written or printed matter. The picture 3 is a copy or enlargement of one of the sterescopic pair. The mount may be made of cardboard, metal, plastic, or other suitable material.
Patent GB-515733-A (GB)
Title: Improvements in or relating to indicating instruments for use on aeroplanes or the like
IPC: G01C9/18
Filed: 1938-03-07
Abstract: 515,733. Electric signalling systems. BRITISH SANGAMO CO., Ltd., GILLIVER, G., and TAGG, G. F. March 7, 1938, Nos. 7154/38 and 7095/39. Divided out of 516,452, [Group XIX]. [Class 40 (i)] In an instrument for indicating an angle of inclination, e.g., the banking angle'of an aeroplane a member 12, pivoted at 13 and carrying the weight 17 is rotated as the craft banks to more or less complete the magnetic circuit of the transformer 19, the secondary winding of which feeds an A.C. instrument 25 or a D.C. instrument 24. The axle 13 is mounted in a copper sphere 10 mounted on pivots 11 in the concave pole pieces 18, so that movement of the craft about the axis X is not indicated. In a modification, Fig. 4, a member 40 of magnetic material moves in coils 37, 38 to offset the distribution of current in the coils of a ratiometer type of instrument.
Patent GB-983649-A (GB)
Title: Automatic control systems for dirigible craft
Inventor: OSDER STEPHEN SEYMOUR
IPC: G05D1/06
Filed: 1962-02-23
Abstract: 983,649. Automatic control of aircraft. SPERRY RAND CORPORATION. Feb. 23, 1962, No. 7168/62. Heading G3R.  In a system for automatically controlling the attitude of a craft, signals representative of the attitude and rate of change of attitude of the craft respectively control a control surface of the craft through first and second servomotors, the rate signal being substituted for the attitude signal in the event of incorrect operation of the second servomotor. In Fig. 1 an aircraft control surface 36 is normally actuated by the combined effect of two servo systems 32, 24 which are respectively controlled by signals from an attitude reference 20, e.g. the pitch pick-off of a gyro vertical, and rate of change of attitude detectors 10, 12 e.g. integrating pitch accelerometers. The two rate detectors are used for reliability and their outputs combined through amplifiers 16, 14 each of which is biased by the output of the other to ensure a true resultant output. Incorrect operation of servo system 24 results in an incorrect relationship between the input and output of the servo system which is detected by a unit 26, and, as a result, a self-holding relay 28 is energized to apply the rate signal instead of the attitude signal to servo system 32. In a modification relay 28 also responds to incorrect operation of servo system 32 and operation of the relay is indicated by illumination of a lamp. A manual switch may be provided to apply the rate signal to servo system 24 and no signal to servo system 32 or to apply a combination of the attitude and rate signals to both servo systems when desired. Specifications 807, 508 and 810,109 are referred to.
Patent GB-627100-A (GB)
Title: Improvements in or relating to plug cocks for gas and other fluids
IPC: F16L37/00
Filed: 1947-03-14
Abstract: 627,100. Connecting pipes to valves. ROLLINGS, R. E., and BELL, F. A. March 14, 1947, No. 7184. [Class 99(i)] For connecting a flexible pipe to a plug cock a spigot member 37 is adapted to fit the bore 24 of the plug and has lugs 38 adapted to pass through an opening 28 in a cock-body closure-plate 26 and to engage a diametrical slot 25 in the plug. The lugs engage behind the closure plate, when the plug is rotated by the spigot to the open position. The lugs press back a washer 31, slidably and non-rotatably mounted on the plug, against the action of a spring 33 which ejects the spigot when the cock is closed. Limit stops, formed by a recess 34 in the cock body, are engaged by a lug, (not shown), on the washer 31. A sealing ring 43 is carried in a groove in the spigot. A fixing plate 44 may be secured at the back or the front of the cock body.
Patent GB-1049044-A (GB)
Title: Corrosion inhibitor
IPC: C23F11/10
Filed: 1964-02-21
Abstract: A corrosion inhibitor comprising the product of the reaction carried out at 150 DEG -250 DEG F. for 1-24 hours of a nitrogen containing compound, a ketone, an aldehyde and a fatty acid which may have been reacted with ethylene or propylene oxide and one or more sulphur compounds selected from ferric sulphide thiourea, aliphatic homologs of thiourea, aliphatic sulphides and thiocyanates, alkali metal thiocyanates, thioacids, mercaptothiozolines, mercaptabenzothiazoles, and mercaptans. The reaction product may be prepared in the presence of an acid catalyst e.g. H2SO4, HCl, H3PO4 and strong organic acids and solvent e.g. a glycol; a wetting agent, an alkynyl alcohol and the sulphur compound may then be added. The inhibitor minimizes attack by corrosive aqueous solutions on ferrous metals, copper and zinc. Rosin Amine D, 2-ethyl amine or alkyl thiourea, paraformaldehyde, formic acid, acetophenone, ethylene glycol and concentrated H2SO4 or HCl were heated together under reflux at 115 DEG C. for 16 hours. The product with a sulphur compound e.g. alkyl thiourea and a wetting agent were used to prevent corrosion of mild steel sheet with various acids e.g. H2SO4, HCl and organic acids. Other wetting agents referred to are mono and dialkyl phenols condensed with ethylene oxide, polyethylene glycol alkyl mercaptans, NH4 isopropylbenzeneparasulphonate, diethanolamide of coconut oil and di.fatty alkyl quaternary ammonium chlorides of mixed fatty alkyls.ALSO:Adducts are prepared by heating (a) 1 mole of a compound having at least on hydrogen atom attached to a nitrogen atom, (b) 1.5-10 moles of a ketone having at least 1 hydrogen atom on the carbon atom adjacent the carbonyl group, (c) from 2-10 moles of an aliphatic or aromatic aldehyde and (d) 0.3-24 parts by weight based on the sum of (a), (b) and (c) of a C1- 20 fatty acid.  Compounds containing hydrogen attached to nitrogen are exemplified by mono- and di-amines, amides, ureas, thioureas, ammonia, ammonium salts and heterocyclic amines.  Ketone reactants may be aliphatic, carbocyclic or heterocyclic and include diacetone alcohol.  Aldehyde reactants include aliphatic and carbocylclic aldehydes.  Fatty acid reactants also include fatty acids that have been previously reacted with alkylene oxides.