baber/WOPTO huggingface dataset:
Patent GB-185305-A (GB)
Title: Improvements in and relating to electromagnetic switches
IPC: H01H50/26
Filed: 1921-08-03
Abstract: 185,305. British Thomson - Houston Co., Ltd., (General Electric Co.). Aug. 3, 1921. Electromagnetic switches; contacts.-Electromagnetic switches have the magnet frame and armature formed by stampings, and the armature is connected to the frame by a pin-and-slot hinge. The bearing for the armature is rounded and formed by turning up the stamping of the frame or armature, and a projection on the turned-up part serves as a stop for the armature or as support for its spring. Figs. 1 and 2 show one form wherein the frame 12, formed of a stamping, supports the armature 13 by means of pins 15 on the armature engaging slots in it. The turned-up end 16 of the armature 13 is rounded at 17 and serves as a bearing, while the end 16 serves as a stop for the armature in its unattracted position. The blow-out coil 23 is secured between side-straps 24, also of stampings and designed so as to be interchangeable. Fig. 6 shows a switch in which two contacts are operated by the armature 28 which is slotted to engage pins 32. Here, the turned-up end is formed on the frame 31 and supports the controlling spring. Fig. 7 shows a form similar to that of Fig. 6, except that two coils 34, 39 act upon the armature 28 which carries two contacts.
Patent GB-1147783-A (GB)
Title: Ethylene oxide production and catalysts therefor
IPC: C07D301/10
Filed: 1966-05-10
Abstract: 1,147,783. Ethylene oxide. HALCON INTERNATIONAL Inc. 10 May, 1966 [14 May, 1965], No. 20709/66. Addition to 1,020,759. Heading C2C. [Also in Division B1] Ethylene is oxidized in vapour phase to ethylene oxide using a catalyst prepared by impregnating support particles having an average diameter of up to <SP>3</SP>/ 16  inch, a porosity of at least 48%, an average pore diameter of 10-70 Á and a surface area of not more than 1 m.<SP>2</SP>/gm., with an aqueous solution of a silver salt, separating, drying and activating in an oxygen containing atmosphere. Examples describe the passage of ethylene air mixtures over catalysts at 245‹ C. and 1 atmosphere.
Patent GB-880581-A (GB)
Title: Improvements in and relating to automatic armature winding machines
IPC: H02K15/09
Filed: 1959-06-17
Abstract: 880,581. Coil-making machines. MICAFIL A.G. June 17, 1959 [June 17, 1958], No. 20828/59. Class 35. An automatic armature winding machine comprises a mandrel 1 to which collet-like is adapted to be secured the commutator end of an armature shaft the mandrel and shaft being carried on centres 5, 8 mounted on a faceplate not shown rotatable about an axis passing through the centre of the armature length and at right angles to that length, and a slidable hook-carrying sleeve 2 mounted on the mandrel; the arrangement provides that during a coilwinding operation conductor wire is positioned taughtly across the end of an appropriate hook 17 until a few turns have been wound, whereupon a centrifugal weight 14 causes the wire to be transferred as shown to within the hook thereby slackening the wire so that the operation can continue without risk of wire breakage. When all the coils have been wound the shaft, mandrel and sleeve are removed from the machine, the sleeve is pressed against the bias of a spring 3 to permit release of the wire loops from the hooks 17, and the loops are soldered to commutator segments not shown. The hooks 17 are arranged star-like around the sleeve, coincide circumferentially with the positions of the armature slots, and are in axially spaced sets equal in number to the number of coils per slot. A slide 13 biased outwardly by a spring 12 conveys the transferring action of the weight 14 to the wire loop.
Patent GB-336278-A (GB)
Title: Improvements in or relating to transmitters for printing telegraph apparatus
IPC: H04L17/06
Filed: 1929-07-08
Abstract: 336,278. Siemens & Halske Akt.-Ges. Oct. 25, 1928, [Convention date]. Type-printing telegraphs.-Relates to case-shift mechanism and comprises means for preventing the errors in transmission which arise when the operator forgets to shift from numerals to letters or vice versa. A separate key is provided for each character, and keys 6 or keys 7 belonging to the case not in use are locked by a bar 8 which can be moved to right and left by means of the shift keys 9, 10 respectively. In one position the letter keys 6 and in the other the numeral keys 7 are locked by the teeth 11 against depression. The character keys 6, 7, set the positions of five selector bars 1 which permit or prevent, as the case may be, opening of contact 3 under the control of cam 5.
Patent GB-698777-A (GB)
Title: Improvements in or relating to motor driven saws
IPC: B23D49/16
Filed: 1951-09-05
Abstract: 698,777. Reciprocating saws, SHORE, W. E. Sept. 5, 1951 [Sept. 9, 1950], No. 20950/51. Class 145 (ii). [Also in Group XXIV] An electric hand reciprocating saw in which the saw blade is held at one end only and in which the saw table moves over the material to be sawed is provided with a mechanism for converting rotary motion to reciprocating motion; the mechanism utilising the principle of the straight line hypocyeloid. The motor shaft 16 carries a fan 17 drawing air through slots 14 in the motor housing which is designed to be held in the hand. The air is discharged through the opening 18 and blows away sawdust from the blade 47. Gear box 21 is secured to the motor housing and closes it. It also carries one rotor bearing 23. A sealing gland 25 is provided. The shaft 16 drives pinion 22 which engages teeth on the periphery of a master rotor 31. This rotor is mounted in a fixed casing 28 and rotates about the axis of a hub 33. The gear casing 28 has an annular gear 30 the teeth of which engage a toothed wheel 40 and also act as a bearing surface for the master rotor. The gear 40 is integral with a drum member 38 carrying a crank pin 41 which, as a result of the combined rotating motion of the drum and master rotor (the former being one quarter of the pitch circle diameter of the master rotor), moves in a straight line and reciprocates the saw blade holder 46. A non-return valve 60 provides pneumatic cushioning for the holder. Back support for the blade is provided by a spring-loaded wheel 82, and the plate 87 which is aligned with the blade may also carry a similar wheel to support the end of the blade. Toothed members 22, 31 act as a gear pump for pumping oil from the well 53 up tube 54. The saw blade is retained by teeth engaged by inserting the blade in the holder and rotating through a right angle. Set screw 70 locks the blade in position.
Patent GB-1009438-A (GB)
Title: Bituminous epoxy resin coating compositions
IPC: C08L63/00
Filed: 1962-05-31
Abstract: A bituminous composition, especially for pipe line coating, comprises (a) coal tar pitch; (b) a polyglycidyl ether-ester of formula <FORM:1009438/C3/1> in which R is lower alkyl, chlorine or bromine, and n is 0, 1 or 2, the glycidyl residues being always in the 4 positions when n = 0; and (c) a curing agent for the epoxy compound. Suitable curing agents are ethylene diamine, diethylene triamine, triethylene tetramine, tetramethylene pentamine, N,N - dimethyl-3-aminopropyl-amine, borontrifluoride-amine adducts, polyamides from dimer acids and polyamines.  Various fillers may be included in the compositions, which may be dissolved in solvents, e.g. benzene, toluene, xylene, creosote oil, fine oil.  The polyepoxy compounds are made from epichlorohydrin and substituted pentanoic acids as described in Specification 768,206. A list of suitable acids is given.  In the examples, the polyglycidyl ether ester of 4,4 - bis - (4 - hydroxyphenyl) pentanoic acid is mixed with:  Example (3) diethylene triamine and a commercial coal tar pitch; Example (4) the same, together with diatomaceous earth; Example (5) the same as (3), but dissolved in xylene.  Reference has been directed by Comptroller to Specification 819,107.ALSO:Polyglycidyl ether-esters of formula <FORM:1009438/C2/1> in which R is lower alkyl, chlorine or bromine; n is 0, 1 or 2, the glycidyl radicals being in the 4 positions in the phenyl rings when n=0, are prepared by reacting the appropriately substituted pentanoic acid (see Specification 768,206) with epichlorohydrin. A number of suitable pentanoic acid derivatives are listed. Examples 1, 2 epichlorohydrin is condensed with 4,4-bis-(4-hydroxyphenyl) pentanoic acid.  Reference has been directed by the Comptroller to Specification 819,107.ALSO:Compositions containing (a) coal tar pitch, (b) certain polyglycidyl ether esters of substituted pentanoic acids, and (c) a curing agent for the polyepoxide, are used for coating steel or concrete surfaces, especially for pipe line coatings.  Fillers may also be included.  The coatings may be applied by brushing or spraying. and are cured by heating.  Specification 768,206 is referred to.  Reference has been directed by the Comptroller to Specification 819,107.
Patent GB-650137-A (GB)
Title: Electromechanical phase-shifter
IPC: G08C19/48
Filed: 1948-08-10
Abstract: 650,137. Phase displacement. DUTILH, J. R. H. Aug. 10, 1948, Nos. 21033 and 21034. Convention dates, Aug. 14, 1947, and June 23, 1948. [Class 38 (ii)] A stator and rotor arrangement for producing a phase-shifted alternating single-phase voltage at the output terminals 4, 17 shifted by an angle # from the single-phase input voltage applied to terminals 26, 27 equal to the angular movement of the rotor 18 of a Selsyn transmitter has phase-shifting networks 28, 29, 30 connected respectively in the lines to the Selsyn stator windings 23, 24, 25 so as to shift the phase of the stator output voltages by angles equal to the phase shifting of their amplitudes in space, which phase-shifted voltages are then summed up to form the resultant phase-shifted single-phase output voltage. The phase-shifting networks 28, 29, 30 contain components so as to produce lagging phaseshifts of 0 degrees, 120 degrees, 240 degrees, respectively. Fig. 2 (not shown) illustrates another embodiment in which each phaseshifting network comprises a resistor and a condenser, a resistor having a tapping to form one output terminal being connected between points on two of the phase-shifting networks, a common point of all the networks forming the other output terminal. The Specification contains a supporting mathematical discussion.
Patent GB-597379-A (GB)
Title: Method for the preparation of purified cellulose
IPC: D21C9/08
Filed: 1945-08-17
Abstract: Purified cellulose, particularly cotton linters, is rendered more suitable for use in the production of heat stable and haze free cellulose carboxylates, by rinsing or treating it with water containing a proportion of a dissolved magnesium compound such that the treated cellulose contains a quantity of magnesium between 0.001 per cent and 0.03 per cent by weight of the cellulose and in a ratio to any calcium present of at least 1 to 3, the quantity of calcium in any case being no more than 0.03 per cent.  The cellulose may be purified by any desired method, e.g. by treatment with a boiling caustic soda solution followed by treatment with dilute acid or alkaline bleach liquor, and by washing.  The processing or wash water may be subjected to a water-softening treatment and the softened water may then be treated with a soluble magnesium salt to give a concentration of 5-100 parts per million of magnesium.  If desired, the magnesium salt may be added to a natural water-containing calcium ions in any quantity up to about 100 parts per million and also sodium ions and the treated water may be used without removing the calcium and sodium ions.  Another method of preparing the water is to pass a natural water containing calcium and sodium ions through a bed of base-exchange material which has previously been regenerated with a magnesium salt.  A natural water containing a large amount of calcium and a sufficient concentration of magnesium may be treated with lime or soda ash to reduce the calcium content, but in such manner as to avoid reduction of the magnesium content as far as possible, e.g. by carrying out the operation in presence of a slurry containing solid magnesium hydroxide and calcium carbonate.  The magnesium compound dissolved in the water for treating the cellulose may be a sulphate, chloride, bromide, nitrate, carbonate, bicarbonate, or hydroxide.
Patent GB-474647-A (GB)
Title: Improvements in or relating to windscreens
IPC: E05C17/16
Filed: 1936-07-30
Abstract: 474,647. Stays. BEATON & SON, Ltd., G., and YOUNG, F. C. July 30, 1936, No. 21099. [Class 65 (i )] In a stay for a vehicle windscreen, of the kind comprising a link 15 pivoted to the screen at 16 and engaging a locking member 19 on the frame whereby the screen may be secured in any adjusted position, the screen is locked closed by automatic engagement between a catch member and a slot situated respectively on the frame and at the free end of the link (or vice versa). In the form shown, the link 15 is slotted to slide on a threaded stud on the frame, this stud carrying a nut 19 which, clamps the stay in any position; the stay 15 is of resilient metal, and when pressed towards the screen in closing the latter it springs over a catch member 20 fixed on the frame so that this engages with the slot in the stay to lock the screen closed.
Patent GB-850522-A (GB)
Title: Improvements in or relating to internal combustion engines
Inventor: KELLETT ERIC
IPC: F02F1/08
Filed: 1956-07-07
Abstract: 850,522. Cylinders. BIRMINGHAM SMALL ARMS CO. Ltd. Aug. 28, 1957 [July 7, 1956], No. 21115/56. Class 7(2). The bolted-up sections of a longitudinally split cylinder-crankcase unit 4 in a four-stroke or, as shown, two-stroke engine seal at 11 against a steel or cast-iron liner 7 integral with or having cast thereon a cylinder head 6 bolted to the unit 4, which is die-cast of aluminium, aluminium alloy or zinc base alloy. If cast, the head 6 is also of one of these materials and keys into liner grooves 8 of which there may, according to the Provisional Specification, be there. In Fig. 1, a sealing ring or circlip 12 engages liner and cylinder grooves, but in Fig. 3 a liner rib (or ribs) 13<SP>1</SP> engages a cylinder groove (or grooves) 141 which may have ribs 15 collapsible on assembly to effect sealing.
Patent GB-1034936-A (GB)
Title: Vulcanisation process
Inventor: AYAD KAMAL NAGUIB
IPC: C08K5/43
Filed: 1964-05-22
Abstract: A vulcanizing agent for natural or synthetic sulphur-vulcanizable rubber comprises a compound of the formula <FORM:1034936/C3/1> where R represents a hydrogen atom or an acyl group having the formula -C(=X)R1 in which X is oxygen or sulphur and R1 is an aliphatic or aromatic group.
Patent GB-1348810-A (GB)
Title: Safety closure for a container
IPC: B65D50/04
Filed: 1971-04-19
Abstract: 1348810 Safety closures CIBA-GEIGY AG 19 April 1971 [13 Feb 1970] 21243/71 Heading B8T A plastics safety closure comprises a screw threaded cap 1, having a concave surface 4, and a safety cap 2 having resilient projections 3 which can slide on the surface 4 causing an axial force. Stops 7, 8 prevent the caps 1, 2 from completely separating. In the position shown, rotation of the cap 2 does not rotate the cap 1. Downward displacement of the cap 2 so as to engage the bayonet device 5, 6, however, generates traction between the caps 1, 2 thereby allowing removal of the cap 1 from a container. The projections 3 may be situated on the cap 1, the surface 4 then being on the cap 2. Further, the projections 3 may comprise a separate member which is trapped between the two caps 1, 2. In a further modification, the projections 3 are deflected outwardly, the surface 4 being formed on a central column of the cap 1 which projects through a hole in the cap 2. A tamperproof ring 10 may be attached to the cap 1 by bridges 11.
Patent GB-680380-A (GB)
Title: Polymerization of vinyl alkyl ethers
IPC: C08F16/12
Filed: 1950-08-28
Abstract: Vinyl alkyl ethers, or mixtures thereof, such as the methyl, ethyl, propyl, isopropyl, butyl, isobutyl, 1,3-dimethylbutyl, 2-ethylbutyl, 2-ethylhexyl, and lauryl vinyl ethers, are polymerized in the presence of aluminium hexahydrosulphate as a catalyst.  The reaction is preferably carried out at 10 DEG  to 120 DEG  C. in the presence of an inert liquid diluent boiling below 120 DEG  C. such as pentane, toluene, a chlorinated aliphatic hydrocarbon, or an aliphatic ether; antioxidants such as alpha naphthylamine or butylated hydroxyanisole may be added to the monomeric vinyl ethers prior to polymerization; the catalyst may be neutralized when polymerization is completed by the use of gaseous ammonia or alcoholic potassium hydroxide.  The solution of the polymer in the inert diluent may be used as such, or the polymer may be recovered by evaporation of the diluent.ALSO:Aluminium hexahydrosulphate (Al2(SO4)3.3H2SO4), is prepared by treating aluminium sulphate in solution or in solid form with concentrated sulphuric acid.  The product is employed as a polymerization catalyst.
Patent GB-1061477-A (GB)
Title: Improvements in magnetic compasses
IPC: G01C17/26
Filed: 1964-05-22
Abstract: 1,061,477. Magnetic compasses. DANSK AUTOMATISK ROR-KONTROL A/S. May 22, 1964 [May 25, 1963], No. 21322/64. Heading G1N. The description is identical with that of Specification 1, 061, 476 but the claims are directed to the annular electrodes 13, 14 on the conical supporting member 12 facing the annular electrodes 17, 18 on the conical part of the float 6.
Patent GB-974439-A (GB)
Title: Method of ammonia production
IPC: B01J8/04
Filed: 1962-06-04
Abstract: <PICT:0974439/C1/1> <PICT:0974439/C1/2> In producing ammonia by reacting nitrogen and hydrogen at elevated temperature and pressure over an iron catalyst which is replaced at intervals in its entirety, additional interim replacements are effected with fresh pre-reduced catalyst of that part of the catalyst charge with which the reactant gases first come into contact.  In Fig. 1, the reactant gases enter at 1, and are pre-heated in 2, 3, before passing up space 4 and across electric heater 5. The pre-heated gas passes through catalyst beds 6-10, each separated by cooling coils 13-16, and reaction products are withdrawn through heat-exchanger 11, and line 12.  At least one of the catalyst beds, e.g. 6, or 6 and 7, is subjected to interim replacement as shown in Fig. 2.  Inert gas, e.g. N2, is introduced at the base of the reactor, while catalyst is aspirated through pipe 18 by means of a pump, 19, operating in association with water-tank, 20. Coarse and fine catalyst is separated in cyclones 22, 23, and the gas, freed from catalyst, is driven back through line 26 to pipe 25 by pump 19, to prevent air entering the reactor and causing an outbreak of fire.
Patent GB-585997-A (GB)
Title: Manufacture of water-soluble disazo dyestuffs, the resulting products and their use
IPC: C09B31/057
Filed: 1943-12-22
Abstract: Water-soluble disazo dyestuffs dyeing animal fibres, e.g. wool, in blue shades, are manufactured by coupling a diazotized aminoarylsulphonic acid aryl ester sulphonic acid of the general formula NH2-A-SO2-O-B-SO3H (wherein A represents an aromatic nucleus of the benzene series in which the amino and sulphonic ester groups are in o- or m-relationship, and B an aromatic nucleus of the benzene or naphthalene series, and wherein both nuclei may be further substituted) with a -naphthylamine, further diazotizing and coupling with a 1-arylaminonaphthalene-8-sulphonic acid.  In examples, the end component is the sodium salt of 1 - phenylaminonaphthalene-8-sulphonic acid, and as first components there are employed the x1-sulphonic acids (x1 indicating that the sulphonic acid group is in an unidentified position in the nucleus represented by B in the general formula) of 6- and 4-methyl-1-aminobenzene-3-sulphonic acid 21-methylphenyl esters, metanilic acid phenyl, 21-methylphenyl, 21-methoxyphenyl and a - and b -naphthyl esters, and 4- and 6-chloro-1-aminobenzene-3-sulphonic acid 21-methylphenyl esters.  Other first components specified are the x1-sulphonic acids of 6- and 4 - chloro - 1 - aminobenzene - 3 - sulphonic acid 21-methoxyphenyl esters and 6- and 4-methoxy - 1 - aminobenzene - 3 - sulphonic acid 21-methylphenyl esters. Aminoarylsulphonic acid aryl ester sulphonic acids, of the general formula given above, are obtained by condensing the corresponding nitrobenzenesulphonic acid halides (e.g. chlorides) with hydroxyaryl compounds (e.g. o-cresol or 2-methoxyphenol), sulphonating the resulting esters with sulphuric acid (monohydrate) at a moderately increased temperature or with fuming sulphuric acid at room temperature, and reducing the nitro group, e.g. with catalytically activated hydrogen.  A sample has been furnished under Sect. 2 (5) of the dyestuff 1-aminobenzene-2-sulphonic acid 21-cresyl ester x1-sulphonic acid --> a -naphthylamine --> 1-phenylaminonaphthalene-8-sulphonic acid.  The diazo component was prepared by warming o-cresol with o-nitrobenzenesulphochloride in an aqueous solution containing sodium hydroxide and carbonate, reducing the resulting ester with iron and aqueous acetic acid and sulphonating by warming with 2 per cent oleum.  The Specification as open to inspection under Sect. 91 comprises also the manufacture, and use as diazo components, of aminoarylsulphonic acid aryl ester sulphonic acids other than those of the general formula above.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1294025-A (GB)
Title: Rf sputtering
IPC: C23C14/40
Filed: 1970-05-05
Abstract: 1294025 R. F. Sputtering INTERNATIONAL BUSINESS MACHINES CORP 5 May 1970 [2 June 1969] 21474/70 Heading C7F R.F. sputtering apparatus comprises a vacuum chamber, a target holder electrode 12 in the chamber for supporting target 14, a substrate holder electrode 18 opposing and spaced from electrode 12, electrodes 12 and 18 being arranged so as to substantially enclose a region of the chamber between them to prevent the glow discharge from extending to the remainder of the chamber, the ratio of the area of 18 to the area of 12 being above 1 but less than 2À5, and means for applying R. F. potential to 12 and 18. The surface area of electrode 18 may be increased by providing annular recesses 20; sputtering of quartz on to silicon and metal in argon gas is referred to.
Patent GB-1418204-A (GB)
Title: Dyeing process
IPC: D06P1/92
Filed: 1973-05-05
Abstract: 1418204 Dyeing textiles CIBA-GEIGY AG 23 April 1974 [5 May 1973 5 March 1974] 21529/73 and 9723/74 Heading D1B Textile fibres are dyed by contacting the fibres with a two-phase suspension comprising an active solvent containing a dissolved dye and the necessary amount of a bulking inert substantially immiscible solvent, the active solvent under the conditions of dyeing being liquid, is a solvent for the dye, is insoluble or only slightly soluble in the inert solvent and in which the fixation affinity of the fibre for the dye is greater than that of the active solvent for the dye at the temperature required for fixation. The inert solvent may be water and active solvents specified are 2-phenoxyethanol, toluene, l-methyl-naphthalene, butyl benzoate, methyl salicylate, 1, 2-dichlorobenzene, ethyl salicylate, di-n-butyl phthalate, benzyl acetate, cyclohexanone, 1, 2, 4-triohlorobenzene, noctoic acid, monoohlorophenoxyethanol, and benzyl alcohol. Continuous dyeing processes may be employed, fixation being by steaming. Exhaust dyeing may be effected fixation being attained by boiling for 2 to 10 minutes. Acrylic, polyamide, wool and polyester materials are dyed.