baber/WOPTO huggingface dataset:
Patent GB-158716-A (GB)
Title: Improvements in typewriting machines
IPC: B41J1/04
Filed: 1919-11-14
Abstract: 158,716. Fairweather, W. C., (Underwood Typewriter Co.). Nov. 14, 1919. Portable machines; carriage-shift mechanism; letter-spacing and back-spacing mechanism; ink-ribbon mechanism.-In a portable machine embodying the carriage-shift mechanism described in Specification 118,529, and, mounted in the carriage-shift frame, the letter-spacing and backspacing mechanisms described in Specification 121,068 and the ribbonfeed and vibrator mechanisms described in Specification 121,069, detachable snap connections are provided between the parts of the ribbon vibrator and the back-spacing mechanism that are on the shift frame and the corresponding parts that are on the main frame. In the arrangement shown in Fig. 1, the back-spacing mechanism includes a long push-link 112 mounted on the shift frame and connectible by means of a snap pivot 118 with the bell-crank 114 engaged by the back-spacing key 113. The levers 38 of the ribbon-feed mechanism are connected by snap pivots 51 to the links 37 connected to the universal bar mechanism. The left-hand lever 38 is associated with vibrator mechanism shown in Fig. 2, the lower end 48 of the lever being turned over and formed with an opening to engage a snap pivot 49 on one end of a floating link 43, which engages at the other end by means of a pin 52 in a cam-slot 53 in a vibrating plate 54 connected by a light link 55 to the vibrator 56. The pin 52 also serves as a common pivot for the link 43 and a link 44 pivoted on a fixed bracket 46.
Patent GB-830355-A (GB)
Title: Feeding arrangement for roller presses
IPC: B30B15/30
Filed: 1956-09-14
Abstract: 830,355. Briquetting machines. KOPPERN, H., and SCHAFER, H., [trading as MASCHINENFABRIK KOPPERN & CO.]. Sept. 14, 1956 [Sept. 14, 1955], No. 28228/56. Class 78 (1). Plastic material from hopper T passes through an opening F thereof controlled by slide E and is guided by guides 2, H into the nip of briquetting rollers A, B. Guide Z may be provided with arms which constrain it to form a curved surface and Guide H may be adjustable in length, both guides being carried by the same or by different carriages.
Patent GB-1315191-A (GB)
Title: Thermosetting acrylic resin compositions
IPC: C09D133/06
Filed: 1970-06-11
Abstract: 1315191 Thermosetting acrylic resin coating GENERAL MILLS Inc 11 June 1970 [11 June 1969] 28299/70 Heading B2E [Also in Division C3] Thermosetting acrylic resin compositions suitable for coating substrates such as steel, copper, aluminium, tin, glass and wood comprise (a) an acrylic resin obtained by copolymerising a monohydric alcohol ester of acrylic or substituted acrylic acid with an ethylenically unsaturated alcohol and (b) a sufficient amount (e.g. 0.1-80% based on the weight of acrylic resin) of a polyisocyanate to improve the impact resistance of the thermoset product obtained from the composition, said polyisocyanate having the formula: where y is 0 or 1, x is 2, 3 or 4 and R" is the hydrocarbon residue obtained after removal of the carboxyl groups from polymerised unsaturated fat acid(s). Preferred unsaturated fat acids from which the polyisocyanates are derived contain 16-22 carbon atoms. The ester component of the acrylic resin is preferably an alkyl acrylate or methacrylate; esters such as alkenyl, cycloalkyl, aralkyl and aryl esters may also be used. The alcohol component of the acrylic resin is preferably a partial acrylic ester of a polyhydric alcohol, e.g. a hydroxyalkyl acrylate or methacrylate; components such as allyl alcohol can also be used. The acrylic resin may optionally contain units of additional monomers, e.g. styrene, vinyl toluene, vinyl chloride, vinyl fluoride, vinyl acetate and acrylonitrile. The compositions may also include an aminoplast cross linking agent, e.g. a urea- or melamineformaldehyde resin such as a hexaalkoxyalkyl -melamine. The acrylic resin is preferably employed in an organic solvent solution, e.g. in an aliphatic or cycloaliphatic ketone or ester, an aromatic or aliphatic hydrocarbon, dioxane and glycol ether-esters. Optional additives which may be present include pigments and fillers, e.g. titanium dioxide; urethanation catalysts such as dibutyl tin dilaurate and stannic chloride pentahydrate; and acidic curing catalysts such as p-toluene sulphonic acid. The compositions can be applied to substrates by brushing, spraying, roller coating, dipping or by doctor blade, and the coatings can be cured by heating to 120‹-230‹C.
Patent GB-888671-A (GB)
Title: Improvements in or relating to derivatives of 5-nitro-2-furfuraldehyde
IPC: C07D307/76
Filed: 1959-08-19
Abstract: The invention comprises: (a) compounds of the general formula <FORM:0888671/IV (b)/1> wherein n is 0 or 1 and of R and R1 one represents a hydrogen atom and the other an alkanoyloxyalkyl group; (b) the preparation thereof by esterifying the corresponding hydroxyalkyl compounds; and (c) the combination of the process of (b), when n is 0, with the preparation of the starting material by reacting a hydrazinoalkanol with an alkali metal cyanate under acid conditions and reacting the resulting hydroxyalkyl-substituted semicarbazone, or a salt thereof, with 5-nitro-2-furfuraldehyde. The products are active against micro-organisms, especially trypanosomes, penicillin-resistant bacteria, coccidia and salmonellae.
Patent GB-1442210-A (GB)
Title: Liquid sealing arrangements
IPC: F16J15/32
Filed: 1973-06-14
Abstract: 1442210 Drop keels PLESSEY CO Ltd 14 June 1974 [14 June 1973] 28328/73 Heading B7V [Also in Division F2] A solid rubber sealing band 3 is carried on an attachment strip 4 of glass fibre reinforced plastic, so as to seal against a retractable keel 1. The strip 4 may be deformed when it is secured to a ship's hull (2), so as to ensure continuous sliding seal with the keel.
Patent GB-882030-A (GB)
Title: Improvements in writing instruments
IPC: C23F1/00
Filed: 1959-08-19
Abstract: 882,030. Reservoir pens. PAPER MATE MANUFACTURING CO. Aug. 19, 1959, No. 28329/59. Class 146(3) [Also in Group XVI] A ball-point pen adapted to write upon greasy and calendered surfaces for a prolonged period of time, is provided with a solid metal writing ball 20 having spaced, irregularly plan-shaped, smooth area portions 21, 22 of an original spherical surface, surrounded by irregularly shaped inkreceiving channels 23 extending below the original surface to between 1/4000 and 1/80 of the original diameter, the channels constituting between 50 % and 80% of the original spherical surface and the smooth area portions constituting 20% to 50% of the original surface. The ball housing may be of brass, or the ball seating and housing may be silver or nickel plated. The ball may be of steel, stainless steel, sintered or cemented silicon carbide, tungsten carbide, boron carbide, alumina, or zirconium oxide. Where the channels 23 are not sufficiently ink-receptive, they may be treated with a metal such as silver which may be applied in vaporized form in a vacuum chamber; or tricresyl phosphate or other surface active agents may be applied; where the ball is 0.04 inches diameter, the channels 23 extend to a depth of between 10 and 300 micro-inches below the surface of the ball, and the upper edges of the side walls adjacent the polished areas 21, 22 are preferably at angles of between 30 and 90 degrees to tangents to the spherical surfaces of such areas. The channels 23 may be produced by attaching an organic material to parts of the ball surface, and then etching the ball (see Group XVI). In another method, the ball is etched by an electrolytic process.
Patent GB-805076-A (GB)
Title: Titanium manufacture
IPC: C22B5/04
Filed: 1956-09-18
Abstract: 805,076. Titanium production. NATIONAL DISTILLERS & CHEMICAL CORPORATION, [formerly NATIONAL DISTILLERS PRODUCTS CORPORATION.]. Sept. 18, 1956 [Sept. 21, 1955], No. 28476/56. Class 82(1) Titanium is continuously produced from titanium tetrachloride in a two stage process by the partial reduction of the tetrachloride with a 10 to 75 per cent deficit of molten sodium at a temperature below the melting point of sodium chloride, to form a solid, finely divided mixture of titanium subchlorides and sodium chloride, and transferring this mixture to another vessel where the reduction is completed by the addition of the stoichiometric amount of sodium, after which the product mixture is heated to a temperature above the melting point of sodium chloride and further treated to isolate the titanium sponge. As shown, liquid titanium tetrachloride is fed through pipe 14 and valve 15 to the reactor 17 fitted with stirrer 11 and sodium is fed thereto from reservoir 1 through valves 3 and 4 and pipe 8. The mixture is transferred by screw conveyer 19, through pipes 20 and 22 and slide valve 21 to a mild steel sintering vessel 30, the temperature of which is maintained above the melting point of the sodium chloride in the mixture by immersion in a molten salt bath 33 whilst an inert atmosphere of argon is supplied through pipe 28 and valve 29. The sodium necessary to reduce the titanium subchlorides is added through pipe 23. The mixture of titanium and sodium chloride is then heated to 900‹C. for up to 24 hours to promote the growth of titanium sponge and some of the by-product salt may be removed by draining before aqueous leaching to recover the titanium metal.
Patent GB-1391530-A (GB)
Title: Control of winding devices
IPC: B65H51/22
Filed: 1972-06-19
Abstract: 1391530 Control of sliver winding devices PAVENA AG 19 June 1972 [19 June 1971] 28602/72 Headings D1N and DID In a sliver winding device in which a winding phase is alternatively interrupted by a standstill phase during bobbin change a sliver reserve is provided and the speed of the winding motor is controlled as a function of the amount of sliver in the reserve so that the reserve is built up during standstill and depleted during winding. The sliver reserve may be formed by a rotating drum 3 with a moving belt surface 4 Fig 1. A flyer 19 torque loaded by a weight 41 determines the size of the reserve. A string 39 carrying the weight 41 passes over a roll 40 which is geared to a voltage-regulator 44 controlling the winding motor. An alternative sliver reserve, Fig 21, has the sliver passing over rolls 55, 56 whose distance apart determines the size of the reserve. The winding device may be of the precision winding type or the friction drum type.
Patent GB-617963-A (GB)
Title: Process for the manufacture of steel
IPC: C21C7/00
Filed: 1945-10-29
Abstract: To produce a steel of increased sulphur content and good machinability, there is added to a molten mass of steel a metallic sulphite which decomposes at the temperature of the molten mass to give up a substantial proportion of the sulphur as sulphur dioxide. The sulphite may be sodium sulphite, sodium bisulphate, potassium sulphite or lead sulphite added at the rate of 1-5 lbs. per ton of steel.  The sodium oxide liberated from sodium sulphite reacts with refractory silicate and aluminate inclusions to remove them by fluxing.  As an example, to produce a steel containing .55-.60 carbon, .60-.90 manganese, .04 maximum phosphorus, .04-.07 sulphur, and .15-.30 silicon, 3 lbs. of anhydrous sodium bisulphite were added to each ton of molten steel containing .55 carbon, .75 manganese, .016 phosphorus, .025 sulphur and .19 silicon.  In the resultant steel the sulphur was increased to .045, all these figures being percentages by weight.  The Specification as open to inspection under Sect. 91 states also that free sulphur may be added simultaneously with the metallic sulphite.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1010187-A (GB)
Title: Process for regulated dehydrogenation of raney metals
IPC: B01J37/34
Filed: 1962-07-25
Abstract: Raney type metals, e.g. cobalt, iron and nickel, e.g. in powder form, are freed from absorbed hydrogen retained in forming the Raney structure or powdered metal, by placing the metal in contact with an inert anode immersed in an electrolyte and passing a current through it e.g. 10-500 milliA. per sq. cm., preferably at constant voltage, e.g. 2V. In examples, powdered nickel Raney metal is loaded on a horizontal platinum plate anode immersed in NaOH or Na2SO4 solution, and 2V. power applied until the current falls to 10-20% of its original steady value.  The process eliminates the pyrophoric character of the original powdered metal containing absorbed hydrogen, without impairing catalytic properties.  Specification 803,844 is referred to.
Patent GB-1344174-A (GB)
Title: Monitoring circuit for an electronic anti-skid braking control  system
IPC: B60T8/88
Filed: 1971-06-18
Abstract: 1344174 Protective arrangements SOC ANON DBA 18 June 1971 [22 June 1970] 28715/71 Heading H2K [Also in Division F2] A monitoring circuit for an electronic antiskid braking control system having a variable frequency speed signal generator P, a frequency to voltage converter C, a signal processing circuit M and an electrically operated valve EV, comprises a switching circuit B periodically actuated by a signal generator G for controlling a warning device W with a delay and for operating a switching element I connected between earth and the input to the converter C, the closing of the switching element I causing the system to function and to provide a reset signal for the switching circuit B before the warning device W can operate only if the system is in good operating condition. The generator P detects the speed of one of the vehicle wheels, but Fig. 2 (not shown) illustrates the use of a modified monitoring circuit with a common warning device and switching circuit in conjunction with AND-gates and a plurality of switching elements to indicate the failure of the anti-skid system applied to all four wheels of a vehicle.
Patent GB-509818-A (GB)
Title: Improvements in or relating to electrically operated vibrators
IPC: H02K33/02
Filed: 1937-10-21
Abstract: 509,818. Reciprocating motors. WEYANDT, C. S. Oct. 21, 1937, No. 28735. Convention date, Oct. 21, 1936. [Class 35] The armature of a reciprocating motor is supported relatively to the wound member by one or more non-magnetic resilient members which prevent impact occurring under normal operating conditions, the wound member being secured to a body to be vibrated. In the form shown, the resilient members comprise rubber blocks 24 vulcanised to angle members 27, 32, the member 32 being fixed to the wound core member 9 and the member 27 is bolted to a side plate 19 or 21 carried by the armature with spacing washers 39 intervening. Ordinarily, the armature will not strike the wound member, but should its stroke be exceeded due to abnormal conditions, the ends 41 of the bolts 36 strike abutments 42 on the plate 1 carrying the core 9. The plate 1 is secured to the body to be vibrated. The coil 13 is energised with alternating or pulsating current which may be obtained through a static rectifier.
Patent GB-633979-A (GB)
Title: Recovery of alcohols from mixtures containing same
IPC: C07C29/06
Filed: 1947-10-28
Abstract: The concentration of secondary alcohols of 8 or more carbon atoms in mixtures containing them or their easily hydrolysable derivatives together with hydrocarbons is effected by fractionating said mixtures in the presence of a base to produce a number of cuts so chosen that the boiling point of the highest boiling hydrocarbon or other constituent, if any, is below the boiling point of the lowest boiling boric acid ester which will be formed by esterifying the cut, esterifying these cuts with boric acid while removing water as formed, distilling under reduced pressure at not substantially above 200 DEG  C. to concentrate the boric esters, and hydrolysing to recover the higher secondary alcohols.  The initial mixtures may be residues from the sulphation of higher olefines such as cracked petroleum wax, to produce secondary alkyl sulphates or the products of sulphation and hydrolysis of such olefins.  The initial fractionation may be effected at 20-25 mm. to give fractions of 15-50 DEG  boiling range, the base used being an alkali or alkaline earth oxide, hydroxide or carbonate or benzidine.  Esterification is effected by heating with boric acid not substantially in excess of the theoretical amount at 80-120 DEG , preferably 96 DEG  C., water being removed as by use of entrainers or inert gas.  The esterified cuts are distilled under reduced pressure at not more than about 200 DEG  C., preferably at 1-5 mm. and below 150 DEG  C., if desired with the introduction of a hydrocarbon of intermediate boiling point, or vapours of organic liquids, to facilitate concentration of the esters.  These are boiled with water and the alcohols recovered. Examples describe the concentration and recovery of alcohols from C15-17, C10-12, C3-10 and C13-15 hydrocarbon-alcohol cuts of the residue obtained in the production of secondary alkyl sulphates or the crude reaction mixture obtained by sulphation and hydrolysis of olefins.
Patent GB-654949-A (GB)
Title: Improvements in or relating to substituted thiazines or substituted 4,5-dihydrothiazines, dithiocarbamyl acids or their derivatives and process of preparing the same
IPC: C07D279/04
Filed: 1947-10-28
Abstract: Dithiocarbamic acid derivatives are prepared by reacting dithiocarbamic acid with alpha-beta unsaturated aldehydes and ketones to form substituted 2-mercapto thiazines or substituted 2-mercapto-4-hydroxy-4,5-dihydroxythiazines, or with alpha-beta unsaturated acids or esters, amides, acid halides, anhydrides, salts or nitriles thereof to form respectively dithiocarbamyl substituted aliphatic acids or esters, amides, acid halides, anhydrides, salts or nitriles thereof, the alpha-beta unsaturation being in all cases aliphatic.  The dithiocarbamic acid may be generated in situ from a salt of dithiocarbamic acid and a mineral acid.  The reaction may be carried out at a temperature of 0 DEG  C. to about 100 DEG  C., or the reactants may be mixed at a temperature of about 0 DEG  to 40 DEG C., and subsequently heating the reaction mixture to a temperature of about 50 DEG  to 100 DEG  C.  An inert reaction diluent may be used, e.g. water or an organic solvent. Equimolecular proportions of the reactants may be employed.  When the product is a substituted 2 - mercapto - 4 - hydroxy - 4,5-dihydrothiazine, it can be converted to the corresponding 2-mercaptothiazine by heating.  A large number of alpha-beta unsaturated aldehydes and ketones and acids and salts, esters, amides, acid halides, anhydrides and nitriles are given, some of which contain chlorine, bromine or nitro substituents.  In the examples the following compounds are prepared : 2 - mercapto - 4,6,6 - trimethylthiazine, 2 - mercapto - 4 - hydroxy - 4,6,6 - trimethyl-4,5-dihydrothiazine, 2-mercapto-4-hydroxy-6-methyl p  - 4,6 - dipropyl - 4,5 - dihydrothiazine or 2 - mercapto - 6 - methyl - 4,6 - dipropylthiazine, methyl beta-dithiocarbamyl propionate and beta-dithiocarbamyl propionitrile.  The 2 - mercapto - 4,6,6 - trimethylthiazine is converted to the corresponding disulphide with an oxidizing agent, e.g. ammonium persulphate.ALSO:Accelerators for forming vulcanized compositions with natural or synthetic rubber comprise substituted 2-mercapto thiazines, substituted 2 - mercapto - 4 - hydroxy - 4,5 - dihydrothiazines or diethiocarbamyl substituted aliphatic acids, esters, amides, acid halides, anhydrides, salts or nitriles.  The disulphide obtained by oxidizing 2-mercapto-4,6,6-trimethyl-thiazine may also be used as an accelerator.
Patent GB-793509-A (GB)
Title: Lock washer
IPC: F16B39/24
Filed: 1956-09-20
Abstract: 793,509. Locking nuts. ILLINOIS TOOL WORKS. Sept. 20, 1956 [Sept. 27, 1955], No. 28810/56. Class 89(1) [Also in Group XXII] A sheet-metal lock-washer comprises a pyramidal body 10, Fig. 2, of regular polygonal outline, e.g. square, with flat faces 24 and a hole 28 in the apex. Prongs 30 extend radially inwards from the periphery of the hole and are twisted. The corners of the body may be removed as at 22, or bent down as at 22a, Fig. 6, to bite into the surface of an article 14a against which the washer bears.
Patent GB-603823-A (GB)
Title: Improvements in or relating to the manufacture of acetonitrile
Filed: 1945-10-31
Abstract: Aqueous acetonitrile containing acetone is distilled in a column still, acetone vapour <PICT:0603823/III/1> being led off from the top and aqueous acetonitrile as a sidestream, part of which is returned at a lower point, and the residue is azeotropically dehydrated as described in Specification 540,799.  In case the acetonitrile is produced by catalytic dehydration of ammonium acetate, the crude product may be fed to a stripping column (which may be the lower part of a combined stripping and acetone-removal column) to remove ammonia (by means of dilute acid, e.g. sulphuric acid), acetic acid and some water. In one embodiment of the invention, crude acetonitrile vapour is fed into the stripping column 2 at 12 and dilute sulphuric or other acid at 13, while the boiler 1 is heated by introduction of steam at 10.  Acetone and water-acetonitrile binary azeotrope pass into the acetone-removal column 3 and acetone vapour is led off at 7 and condensed at 8, part of the liquid being refluxed via 9 and the remainder removed by 15.  Water-acetonitrile binary azeotrope (containing only a small proportion of acetone) is led off at 4, part being refluxed at 6 and the remainder passing via 16 to a dehydrating apparatus as described in Specification 540,799, from which the aqueous layer is returned to column 2 at 14.  In a modification (Fig. 2, not shown), the liquid passing out at 16 is led to a stripping column, residual acetone being removed as vapour and fed back to column 3 slightly above 4 and acetone-free binary being led to the dehydrating apparatus as above.  Specification 603,824 also is referred to.