baber/WOPTO huggingface dataset:
Patent GB-668998-A (GB)
Title: Improvements in and relating to esterification
IPC: H01F29/02
Filed: 1950-05-15
Abstract: Esters of good colour are made by reacting polyvinyl and polyallyl alcohols with a carboxylic acid or anhydride thereof while bubbling sulphur dioxide through the reaction mixture.ALSO:Esters of good colour are made by reacting an organic compound containing at least one esterifiable hydroxy group with a carboxylic acid or anhydride thereof while bubbling sulphur dioxide through the reaction mixture. Esterifiable compounds may be mono- or poly-hydric, aliphatic, alicyclic or aromatic and may contain such inert groups as halogen, alkoxy and carbalkoxy and representative of many specified are: methanol, cyclohexanol, methallyl alcohol, 2 : 8-dodecadienol, phenol, benzyl alcohol, glycerol distearate, glycol, 2 : 4 : 6-heptanetriol and resorcinol.  Preferred are ethylenically unsaturated alcohols with at least one ethylenic linkage preferably not more than four carbon atoms removed from the hydroxy group and many of such compounds are specified.  A particular class of hydroxy compounds contains an ethylenic linkage in the beta, gamma position relative to a terminal hydroxy group, many of such compounds being specified including allyl alcohol, 2 : 4-hexadienetriol-1 : 3 : 6, 2-butenediol-1 : 4-monoallyl ether, 2-butenediol monoacrylate, chloroallyl alcohol, 3-cyclohexyl-2-propen-1-ol and 2-phenyl-2-buten-1-ol.  Any carboxylic acid may be used, preferred being aliphatic, alicyclic or aromatic mono- or polycarboxylic acids. They may contain inert substituents such as halogen, sulphate, nitrate, ether and ester groups.  Many acids are specified, representative being acetic, arachidic, crotonic, cyclobutanecarboxylic, benzoic, succinic, fumaric, tricarballylic, trimellitic, tetrachlorophthalic, gamma-carbethoxy brassylic acids, monobutyl adipate and monochloroallyl terephthalate.  Polycarboxylic acids are of particular use.  Mixtures of acids and/or hydroxy compounds may be used.  A list of esters obtainable is given, representative being butyl acetate, diallyl phthalate, allyl amyl succinate, 2-butenyl caproate, trichloro-allyl hemimellitate and allyl benzoate. Preferably conventional esterification catalysts are used and many are specified.  Preferably one to five equivalents of hydroxy compound as compared with acid are used.  Temperatures of about 70-150 DEG  C., particularly 80-100 DEG  C., are preferred, and pressures may be varied.  Generally a saturated solution of sulphur dioxide should be maintained.  Diluents and polymerization inhibitors may be used and many of conventional type are specified.  Peroxides are desirably absent.  Water and aldehydic impurities are preferably removed from the reaction mixture as soon as formed.  In examples: (1) diallyl; (2) dimethallyl; (5) octyl; and (7) butyl, ethyl, 2-butenyl and glyceryl diacetyl phthalates; (3) diallyl succinate; (4) chloroallyl propionate; and (6) diallyl maleate are made by conventional catalysed azeotropic methods whilst sulphur dioxide is bubbled through the reaction mixture.
Patent GB-1178811-A (GB)
Title: Process for manufacturing of Non-Woven Fabrics or the like by Wet Sieving of Viscose Fibres
IPC: D01D4/02
Filed: 1968-03-12
Abstract: 1,178,811. Paper. TACHIKAWA RESEARCH INSTITUTE. 12 March, 1968 [26 April, 1967], No. 12093/68. Heading D2B. Paper or non-woven fabric is made from an aqueous dispersion of staple fibres of incompletely regenerated xanthate cellulose having a primary swelling valve (defined as in Specification 1,042,005) of 1,900 to 10,000 and obtained by spinning through a spinneret in which the holes have a ratio of length to diameter of more than five. This avoids obtaining a filament of diameter substantially larger than the spinning orifice (the Barus effect). Preferably the spinneret is of glass.
Patent GB-513803-A (GB)
Title: Improvements relating to liquid break electrical switches or circuit breakers
IPC: H02B1/00
Filed: 1938-04-22
Abstract: 513,803. Oil-break switches. DAVIES, D. R., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. April 22, 1938, No. 12168. [Class 38 (v)] A circuit-breaker of the single break type comprises a tubular liquid chamber 1 of insulating material enclosed in a metal shell 2 with solid insulating material intervening between the shell and the chamber over at least a part of the length of the chamber. The chamber 1 houses an arc-extinguishing structure 5 and rodtype of longitudinally moving contact 6 mounted within an inner eccentrically placed chamber 10, this rod being movable in and out of the structure 5. The space between the chambers 1 and 10, both of insulating material, serves as a chimney to receive the discharge from the arcextinguishing structure. The chimney communicates with the space above the structure 5 by an enclosing cap 17 as shown or, in a modification, by way of a port in the wall of the chamber 10. A removable cover plate 14 may be provided for access to the fixed contact 4. The connection piece 24 may be slid within the conducting sleeve 27 to permit withdrawal of the contact carrier 12. The circuit breaker may be mounted on trunnions and rocked on pivots as at 42 from the normal position into or towards the horizontal position as indicated by the dotted lines.
Patent GB-1525370-A (GB)
Title: Self-sustaining spring fastener clips for furniture rails and magazine feed arrangements therefor
IPC: A47C31/06
Filed: 1977-03-23
Abstract: 1525370 Upholstery clip HARTCO CO 23 March 1977 [26 April 1976] 12195/77 Heading A4M A one-piece clip 10 for securing the laterally turned end (14) of a sinuous upholstery spring, see Figs. 1 and 2 (not shown), to the wooden rail (12) of an article of furniture, has a tongue 28, 30 at each end of its base portion 20 providing jaws for straddling the inner and outer sides of the tail (12). Prongs 32, 34 on the tongues are adapted to penetrate the tail. A plurality of clips may be stuck side-by-side on to a liner strip (52), Fig. 6 (not shown), or mounted in superposition, Fig. 8 (not shown), the tongues 34 engaging opposed notches (160) in the portion 20, individual clips being removed as required from the assembly, the strip (52) being retained in each clip for sounddeadening.
Patent GB-278617-A (GB)
Title: Improvements in and relating to hosiery protectors
IPC: A41D17/00
Filed: 1927-05-07
Abstract: 278,617. Kleinert Rubber Co., I. B., (Assignees of Morrison, C. C.). Feb. 25, 1927, [Convention date]. Gaiters. - A stocking protector applied to the ankle and back of the leg, made of flexible waterproof material preferably indiarubber, comprises a heel portion 11 to which an upper part 10 is attached, the part 10 being capable of being turned outwardly at 14 to form a guard. The upper part 10 is turned inwardly at its lower edge and attached thereat to a straight edge of the heel portion 11 thereby shaping the protector td the wearer's limb. An instep strap 15 is provided and furnished with a slide 16 for adjustment the slide being in the form of one element of a press fastener the other element being attached to the body of the protector. An elastic strap is also provided for passing underneath the wearer's foot.
Patent GB-1029553-A (GB)
Title: Improvements in thermal storage boilers
IPC: F22D5/00
Filed: 1962-03-30
Abstract: 1,029,553. Feedwater supply systems for steam boilers. E. G. RITCHIE. Jan. 21, 1963 [March 30, 1962], No. 12341/62. Heading F4A. All the boilers of a battery of thermal storage boilers operating at a pressure higher than that at which steam is supplied to the consumer are supplied through a single separate direct or indirect feed water heater or heat exchanger C which is in direct communication with the main steam header. The heater C is fed by a pump H from the hot well E through an overflow valve D. The latter may be controlled as shown by the pressure in the steam main so that when the latter pressure rises beyond a predetermined value the valve D opens. Alternatively, the steam supply to the heater may be controlled by a steam overflow valve (not shown) in which case the valve D is under the control of the steam pressure in the heater C. The valve D is also subject to an overriding control by the level in the heater C. Feedwater is supplied from the heater C to the boilers by a pump F through a regulator G which opens when the level in the heater C exceeds a predetermined value. The heater C has means J for discharging dissolved gases as described in Specification 551,089 and each boiler has high and low level controls A, B respectively.
Patent GB-1466815-A (GB)
Title: Self-unloading wheeled vehicles
IPC: B60P1/38
Filed: 1975-03-25
Abstract: 1466815 Unloading vehicles HEIL CO 25 March 1975 12345/75 Heading B8E [Also in Division E2] A trailer 10 has material unloaded by a belt 36 passing under an operable tailgate 30. The belt 36 passes over a floor 12 of slats 14 and round a rear pulley 38 to be dead-ended at 44 after passing round a segmented drive roller 46 actuated by a ram 50. The ends of the roller 46 run in guide tracks 47 along the vehicle side so that together with the segmenting of the roller 46 twisting is prevented. Cables 54 are attached to the forward end of the belt 36 and pass over forward pulleys 56 and pulley 60 at the ends of the roller 46 to be dead-ended at 64. A fixed bulkhead 78 is positioned spaced from the front 28 of the trailer to provide a space normally covered by the belt 36 for fallback of material as the belt 36 is drawn forward for unloading. After unloading the cables 54 return the belt 36 which is able to push any spilt material between the slats 14.
Patent GB-527997-A (GB)
Title: Improvements relating to steam boilers and other vessels subjected to high pressure
IPC: C22C38/08
Filed: 1939-04-25
Abstract: 527,997. Alloys; annealing. MOND NICKEL CO., Ltd. April 25, 1939, No. 12427. Convention date, April 29, 1938. Drawings to Specification. [Classes. 72 and 82 (i)] A steam pressure vessel or part thereof is made from steel containing not more than 0.5 per cent. of carbon and 0.3-5 per cent. of nickel, together with another metal constituent, preferably copper, aluminium. beryllium, or titanium, that is at least partly in solid solution and that remains in solution for a very long time when heated to temperatures up to 500‹F. but precipitates at those points subjected to slight plastic strain such as is produced, for example, by plastic deformation around rivet holes and in rivets, expanded joints, welded seams, and other stressed parts. when heated to 360-550‹F. Preferable compositions are 0.3-5 per cent of nickel, up to 0.5 per cent. of carbon, up to 2 per cent of manganese, and up to 1 per cent. of silicon, with or without up to 2 per cent, of molybdenum, together with 0.5-3 per cent of copper, 0.5-3 per cent. of aluminium, 0.2-3 per cent, of beryllium. or 0.5-5 per cent. of titanium. Chromium if present should not exceed 0.4 per cent. The steel is rendered free from blue brittleness by deoxidation with aluminium, titanium, or other agent, leaving, for example, a residual aluminium content of at least 0.015 per cent. Heat treatment to ensure, that the metal constituent referred to is wholly or partly in solution may consist in heating to over 1100‹F. and cooling either in air or by quenching. For example, nickel-copper steels may be (1) normalized from 1650‹F., with or without subsequent ageing at 900‹F., or (2) oil quenched from 1200‹F.
Patent GB-315502-A (GB)
Title: An improved iron alloy for milling tools
IPC: C22C38/30
Filed: 1928-04-27
Abstract: 315,502. Kl³ger, L., and Oesterreichische Schmidtstahlwerke Akt.- Ges. April 27. 1928. Alloys.-An iron alloy for milling tools contains 10.7-25 per cent of chromium, 1.3-3 per cent of cobalt, 2.0-4.7 per cent of tungsten, 1.0-2.3 per cent of molybdenum and about 2 per cent of carbon. The alloy may also contain up to 1 per cent of vanadium. The chromium, cobalt, tungsten and molybdenum are in the ratio by weight of about 71.6: 8.5 : 13.3 : 6.6.
Patent GB-594364-A (GB)
Title: Seam ripper
IPC: A41H31/00
Filed: 1945-05-18
Abstract: 594,364. Seam rippers. WING, C. N. May 18, 1945, No. 12509. [Class 30] A seam ripper consists of a blade fixed in front of a mirror so that a full view of the seam can be obtained by direct aspect and reflection in the mirror. The blade 1, with cutting edge towards the worker, is attached by a clip 3 to a rigid base 2 in front of a mirror 5. Clip 3 may be screwed into the base to allow the blade to be turned at an angle to the mirror. The mirror 5 may also be fixed to a bracket or clip screwing on to the base, which allows the height of the mirror to be adjustable. The bracket holding the mirror may also be arranged to slide within a horizontal slot and also may be formed with a swivel turning about a horizontal axis, so that the mirror can be moved left or right or adjusted at an angle.
Patent GB-1153216-A (GB)
Title: Improvements in or relating to Wire-Stripping Machines
Inventor: KING JOHN
IPC: H02G1/12
Filed: 1967-03-17
Abstract: 1,153,216. Cable stripper. J. KING. 18 March, 1968 [17 March, 1967], No. 12559/67. Heading H2C. A wire stripping machine has cutters 15 on arms 12 pivoted at 13 on brackets 11 which are attached to a spindle 7 rotated by a motor 3, and the cutters are brought into engagement with the wire sheath by a frusto-conical surface 9 which is carried in a yoke 6 pivoted at 5. Movement of the yoke in each direction is limited by adjustable stops (19), 20, and is caused by a Bowden cable 27 against the action of a spring (24).
Patent GB-310342-A (GB)
IPC: B02C17/18
Filed: 1929-04-23
Abstract: 310,342. Maschinenbau - - Anstalt Humboldt. April 23, 1928, [Convention date]. Ball and like mills.-The air used as a sifting means in a tube mill is divided into two streams one of which conveys the material to be ground into the mill and sifts it therein, and the other is introduced directly into the delivery pipe. A pipe b passes through the centre of the mill, one end projecting into the delivery pipe f and the other into the air inlet pipe d beyond the feed pipe e. A throttle valve c in the pipe b regulates the quantity of air passing direct to the delivery pipe f whilst the air passing outside the pipe b conveys the material entering at e into the drum and delivers the fine dust held in pockets g or other suitable means, beyond the screen h into the pipe f. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the pipe b is perforated and the air passing therethrough ejects the dust into the pipe f, the screen h being omitted. This subject-matter does not appear in the Specification as accepted.
Patent GB-453269-A (GB)
Title: Improvements in reflectors for roadside kerbs and like uses
IPC: E01F9/053
Filed: 1936-05-05
Abstract: 453,269. Road kerbs. MACNAB, J., Oakfield, Arkwright Road, Marple, Cheshire. May 5, 1936, No. 12671. [Class 107] [See also Group XX] A reflector for setting in a roadside kerb &c. comprises a metal strip or rod d having a light-reflecting element c on one or on each side at one end, the other end of the strip being so formed as to provide a key in concrete. The kerb a has a longitudinal groove b and the reflector is mounted so that the elements c are positioned either partially within the groove or wholly therein as shown.
Patent GB-484031-A (GB)
Title: Improvements in endless chain elevator-conveyors
IPC: B65G17/12
Filed: 1937-05-04
Abstract: 484,031. Endless chain elevators. TYLER, G. M. May 4, 1937, No. 12690. [Class 78 (i)] In portable elevators for loading filled sacks of material into vehicles of the kind in which the sacks are supported on spaced cross slats 4 attached to the elevator chains, pockets 7 of canvas, leather or steel are arranged between the slats in order that the elevator may be used also for loading loose material. In a modification the pockets are replaced by flaps which are hinged to the rear edge of the slats in such manner that they trail behind the slats on the upward run and hang down vertically on the downward run. The frame 1, which is curved as shown, is made of angle iron and serves as a guide for the slats.
Patent GB-1192803-A (GB)
Title: Process for Separating Ethane-1-Hydroxy-1,1-Diphosphonic Acid from a Solution of it in an Organic Solvent which also contains Oxyacids of Phosphorus
IPC: C07F9/38
Filed: 1968-03-15
Abstract: 1,192,803. Ethane - 1 - hydroxy - 1,1 - diphosphonic acid. PROCTER & GAMBLE CO. 15 March, 1968 [15 March, 1967], No. 12694/68. Heading C2C. Ethane - 1 - hydroxy - 1,1 - diphosphonic acid is separated from a solution of it in an organic solvent (e.g. formic acid, acetic acid, aliphatic alcohols containing up to 8 carbon atoms) which also has dissolved therein at least one oxyacid of phosphorus (i.e. H 3 PO 4 , H 3 PO 3 , H 3 PO 2 ) by adding to the solution an alkali metal or ammonium ion (e.g. hydroxide, oxide, carbonate, bicarbonate of sodium, potassium, lithium or ammonium, or salt of a carboxylic acid containing from 1 to 6 carbon atoms in the molecule), the molar ratio of alkali metal or ammonium ion to ethane-1-hydroxy-1,1-diphosphonic acid being 0À75 1 to 1À2 : 1, so as to form a monobasic salt of ethane -1-hydroxy-1,1- diphosphonic acid which is insoluble in the solvent and forms a precipitate, and separating the precipitate from the solution.
Patent GB-567286-A (GB)
Title: Improvements in or relating to the manufacture of heat exchange devices
IPC: B23K1/08
Filed: 1941-10-01
Abstract: 567,286. Making heat exchangers. COLTMAN, J. L., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 1, 1941, No. 12704. [Classes 83 (ii) and 83 (iv)] Soldering.-Heat-exchange devices of the kind comprising a matrix of thin walled, tubular or plate - like elements are hard soldered by partially or completely immersing them in a bath of molten solder protected from oxidation by maintaining over the surface thereof a layer of non-oxidizing or reducing gas or mixture thereof. The gases may consist of nitrogen, hydrogen, cracked ammonia, or burnt coal gas preferably previously purified. The solder may consist of an alloy containing 50 per cent of silver, 15.5 per cent of copper, 16.5 per cent of zinc and 18 per cent of cadmium. Such solder is maintained at a temperature of 750-850‹ C. by burners 4 in an iron bath 2 with a brick surround 3 and flue 5. A ring pipe provided with a valve 9 has a number of downwardly directed jets 8 for projecting the gas against the surface of the molten solder. The gaseous atmosphere over the surface of the solder is maintained by a hood 11 having an aperture 12 for the passage of the assembled work parts. The work parts may previously be coated with a flux, such as one which melts to a mobile liquid at a temperature not higher than the temperature of the bath, or an aqueous solution of zinc chloride and ammonium chloride.
Patent GB-179813-A (GB)
Title: Improved drinking fountain
IPC: E03B9/20
Filed: 1921-05-04
Abstract: 179,813. Shanks & Co., Ltd., and Shanks, W. May 4, 1921. Fountains.-In drinking-fountains comprising a bowl 2 with a constricted end 3 in which is placed an inclined nozzle 4, Fig. 2, the nozzle has inclined lateral openings 6, Fig. 3, through which the water flows when a finger is applied to the nozzle outlet, and a cruciform anti-splash device 11<a>.
Patent GB-592642-A (GB)
Title: Self-locking nut
IPC: F16B37/02
Filed: 1945-05-22
Abstract: 592,642. Self-locking nuts. ADEL PRECISION PRODUCTS CORPORATION. May 22, 1945, No. 12761. Convention date, Oct. 31, 1944. (Class 89 (i)] Relates to self-locking nuts having a platelike resilient sheet metal body 15 having struck up and oppositely inclined portions 18, 19 formed at 24 to engage the thread and consists in making the side slits 23 shorter than the central slit 21 the ends of the struck-up portions being inclined at acute angles to the slits. In a modification, further slits are formed at one end of each struck up portion turning these parts into tongues with edges that bite into the work on screwing up.
Patent GB-1384764-A (GB)
Title: Electromagnetically operated valves
IPC: F16K31/06
Filed: 1972-03-20
Abstract: 1384764 Valves WABCO WESTINGHOUSE GmbH 20 March 1972 [18 March 1971] 12809/72 Heading F2V An electromagnetically operated valve comprises an inlet port 8, and outlet port 9 and an exhaust port 12 controlled alternately by an armature 2 having a metal-to-metal contact with core piece 1 over part of the surface 15 of the armature. The projection 15 may be formed on the core piece 1 or on both the armature and the core piece. Grooves 17 enable fluid to pass into a gap 16 thereby assisting a spring 18 in closing the inlet port when the coil 4 is de-energized. Both the armature and body are made of magnetisable material.
Patent GB-771369-A (GB)
Title: Improvements relating to tr cells
Inventor: BALDOCK GEORGE SEYMOUR
IPC: H01J17/04
Filed: 1955-05-04
Abstract: 771,369. High-frequency discharge apparatus. FERRANTI, Ltd. May 4, 1955 [May 4, 1954], No. 12883/54. Class 39(1). In a T.R. cell of the type comprising a sealed portion of gas-filled waveguide 10 containing main discharge gap electrodes associated with a resonant circuit in the form of a turned aperture in a conductive diaphragm 15 disposed across the guide, and having an external priming electrode 20 located in an auxiliary cavity 19 communicating with the cell through a priming aperture 21, the main discharge gap 18 is offset from its normal position in the centre of the cell towards the aperture 21 to ensure a more effective priming of the main gap. An additional electrode may be introduced into the auxiliary cavity 19 to focus the electrons from the priming discharge into a beam. In the construction shown in Fig. 4 the priming aperture 21 is located in one of the broader walls 12 of the waveguide and one of the main electrodes is formed by two parallel wires 31 secured across the aperture 21 at a distance apart sufficient to allow the priming electrons and any ionizing radiations to pass between them, the wires being parallel to and one on each side of the diaphragm 15. The co-operating main electrode 32 is ground to present an edge at right angles to the wires 31. In an alternative arrangement the wires 31 are disposed at right angles to the diaphragm 15. the tip of the main electrode 32 being again ground to present an edge at right angles to the wires. The wires 31 may be omitted, in which case the area of the wall 12 immediately surrounding the aperture 21 forms one of the main electrodes. The invention may be applied to T.R. cells having other forms of main discharge electrodes and resonant circuits. For example, the conical electrodes of a conventional cell may be similarly displaced from the usual central position, the associated resonant circuits being modified accordingly.
Patent GB-1106956-A (GB)
Title: Fermentative preparation of l-glutamic acid
IPC: C12P13/14
Filed: 1965-03-26
Abstract: L-Glutamic acid is prepared by culturing a micro-organism capable of metabolizing a hydrocarbon to produce L-glutamic acid therefrom and which is inhibited by a penicillin, under aerobic conditions on a medium containing a hydrocarbon as a main source of assimilable carbon, a source of assimilable nitrogen and inorganic salts, and adding a penicillin to the cultured medium. The penicillins to be used are penicillin itself, benzyl penicillin, phenoxymethyl penicillin, phenoxyethyl penicillin, phenoxypropyl penicillin, dimethoxyphenyl penicillin, aminobenzyl penicillin, methylphenylisoxazolyl penicillin and salts thereof, e.g. the sodium and potassium salts thereof.  The penicillin is preferably added after the initial growth phase and before the stationary phase, more preferably at the logarithmic growth phase. Exemplified micro-organisms are Corynebacterium oleophilus and hydrocarboclastus. Hydrocarbons suitable for the carbon source include crude oil, kerosene, naphtha, light and heavy oils, ligroin and gaseous hydrocarbons.  The carbon source may also be supplemented by sugars, organic acids or polyhydric alcohols. Various growth promoting agents may also be added to the culture medium.