baber/WOPTO huggingface dataset:
Patent GB-1204247-A (GB)
Title: Process for preparing chloride ion-free nitric acid solutions
IPC: C01B21/46
Filed: 1968-03-26
Abstract: 1,204,247. Purification of nitric acid. OSTERREICHISCHE STICKSTOFFWERKE A.G. 26 March, 1968 [15 June, 1967], No. 14585/68. Heading CIA. Chloride ions are removed from a nitric acid solution containing nitrosyl chloride and optional solids by passing a gas which under the reaction conditions does not react with the nitric acid solution e.g. oxygen, nitrogen or air through the solution and blowing out the bulk of the nitrosyl chloride in the gas phase, adding dinitrogen tetroxide in excess amount relative to the residual chloride ion content and then completing the blow out process. The blowing out process may be carried out at 20-50‹ C. and preferably a pressure of 0.1 to 1 atmospheres absolute. The amount of dinitrogen tetroxide added may be 0.4 to 0.7 times the amount of nitrosyl chloride contained in the nitric acid solution used as the starting material. In the examples potassium nitrate, nitric acid and nitrosyl chloride are introduced at the head of a plate column and oxygen is simultaneously introduced at the bottom of the column. Liquid N 2 O 4  is added dropwise half way down the column.
Patent GB-217902-A (GB)
Title: Electric starters for internal combustion engines
IPC: F02N15/02
Filed: 1924-06-17
Abstract: 217,902. Tria Maschinen Ges. June 21, 1923, [Convention date]. Turning-gear .-In an electric starter, gear wheels 7, 8 mounted on the armature shaft 5 and a shaft 6 connected with the engine are connected by one or more pairs of intermediate gear wheels 9, 10 secured to shafts 12 inclined to the shafts 5, 6. As shown, the gear wheels 7, 8 are in the same plane and the shafts 12 are carried by a member 14, 26 rotatable in bearings 13, 15, 16. At starting, the member 14, 26 is held against counter-clockwise rotation by a pawl 18 engaging ratchet teeth 17 on the part 26, and the shaft 6 is driven at reduced speed through the gears 7, 9, 10, 8. When the engine is running normally, the gearing turns as a whole and the rotation is transmitted to the shaft 5 through ratchet teeth 32 on the part 14 and a spring-pressed ratchet member 33 slidingly keyed to the shaft 5. For starting by hand, a member 35, connected to the shaft 5 by a pin and slot, is brought into engagement with teeth 37 on the part 14. Specifications 208,396, [Class 35, Dynamo-electric generators &c.], and 213,026 are referred to.
Patent GB-602882-A (GB)
Title: Improvements in processes for the sulfonation of heterocyclic compounds
IPC: C07D213/71
Filed: 1945-06-11
Abstract: Nuclear sulphonic acids of pyridine and 3-alkylpyridines are manufactured by heating their onium sulphonated compounds in the presence of sulphuric acid and a catalyst consisting of the sulphate of mercury, vanadium, aluminium or magnesium, either added as such or prepared in situ from the metal itself or any compound thereof which will react with sulphuric acid to form the sulphate, e.g. their oxides or hydroxides.  In examples: (1) sulphur trioxide vapour is passed over the surface of pyridine until the calculated quantity has been absorbed, and the resulting pyridinium sulphonic acid is heated with concentrated sulphuric acid in the presence of mercury or mercuric sulphate to produce pyridine-3-sulphonic acid; (2) b -picolinium sulphonic acid is prepared by adding b -picoline dropwise to oleum or by passing sulphur trioxide into b -picoline, and the product is heated with concentrated sulphuric acid and mercury, yielding b -picoline-5-sulphonic acid.  3-Ethylpyridine and higher homologues may be similarly treated.
Patent GB-397982-A (GB)
Title: Improvements relating to caravans and like road vehicles
IPC: B60P3/34
Filed: 1932-05-25
Abstract: 397,982. Caravans. BISHOP, J. H. Jessamine Cottage, Fox Hollies Road, Walmley, Erdington, Birmingham. May 25, 1932, No. 14784. [Class 108 (i).] Caravans are provided in their side walls and if desired in their front and rear ends with box-like structures a having windows a<1> which are mounted to rotate upon vertical axes a2 so that they may alternatively occupy positions inside or outside the walls of the vehicle. The structure may be made up of a number of section parts which are adapted to be upholstered or provided with a mattress. When inside the vehicle the outer side may be closed by a sliding or pivoted closure or blind.
Patent GB-293176-A (GB)
Title: Apparatus for extracting fats at low temperature
IPC: C11B1/10
Filed: 1927-06-02
Abstract: 293,176. Pansky, A. June 2, 1927. Fats, extracting. - Solvent in the form of vapour under reduced pressure is caused to pass upwards through the material to be extracted, the necessary degree of vacuum being maintained bv a condenser. The material is placed in a vessel 1 having a. perforated &c. false bottom 8, 9 and, after exhaustion of the apparatus by a pump 35, solvent preheated in a heater 16 is introduced into tubes 2 at the base of the vessel 1 and caused to boil by a suitable steam jacket, the vapours passing through the material and being condensed in a condenser 26. When the material has been sufficiently extracted the cock 15 is closed and the solution in the vessel 1, after further concentration, is run into a still 42 by first filling it with steam and then condensing with cold water. After further operations in the vessel 1 the accumulated solution in the still 42 is steam distilled. solvent and steam being condensed in the condenser 26. The condensed solvent is returned to a storage vessel 14 by a pump 38.
Patent GB-529108-A (GB)
Title: An improved bituminous composition
IPC: C04B26/26
Filed: 1939-05-18
Abstract: 529,108. Bituminous compositions. HJELTE, S. M. May 18, 1939, No. 14840. [Class 22] A bituminous composition or binder for paving, flooring, roofing &c., and for insulation purposes, consists of asphaltum or other bituminous material and a filler comprising the precipitate of calcium carbonate obtained as a waste or by-product in the caustification of soda by milk of lime in preparing the cooking liquor used in the manufacture of sulphate or sodium cellulose.
Patent GB-543356-A (GB)
Title: Improvements in or relating to mechanisms for hoists, windlasses, tensioning machines, torsion machines, lifting appliances and the like
IPC: B66D5/00
Filed: 1939-05-19
Abstract: 543,356. Winches. THORPE, B. J., and NIXON, J. May 19, 1939, No. 14910; [Class 78 (v)] [Also in. Group XXIV] Consists in ratchet mechanism applicable to hoists, windlasses, tensioning and like machines, in which a positive drive in forward and reverse direction is obtained. The ratchet wheels A, A<SP>1</SP> are secured together or made in one piece with their teeth staggered by half the pitch relatively to one another. The driving shaft B carries eccentrics on which are mounted the pawls C, C<SP>1</SP> and lifters D, D<SP>1</SP> therefor. The pawls are kept in engagement with the teeth by gravity or springs. The lifters so regulate the action of the pawls that they engage the teeth without snap. On rotating the shaft B in the reverse direction, the wheels A, A' still being subjected to the load, the unloaded driver, e.g. C<SP>1</SP>, is raised clear of the teeth by lifter D' to allow the forward movement imparted to it by its eccentric while pawl C holds the load and allows it to move backward. When pawl C has reached its extreme position, the pawl C<SP>1</SP> is moved forward to engage the wheel A<SP>1</SP> and receive the load. Continued rotation of shaft B brings lifter D in contact with driver C which being freed of the load is now lifted clear of the tooth on wheel A while pawl C<SP>1</SP> continues to carry the load backwards until relieved by the pawl C. To prevent jamming of the pawls in the teeth, a small negative movement is imparted to each pawl during its stroke to ensure that the lifting movement of either driving pawl does not commence until the other pawl has taken over the load entirely.
Patent GB-694042-A (GB)
Title: An educational game appliance
IPC: G09B17/00
Filed: 1950-06-15
Abstract: 694,042. Educational appliances. VASSALLO, E. V. Sept. 17, 1951. [June 15, 1950] No. 14970/50. Class 146 (ii). An educational game appliance comprises a base member formed with a series of grooves running into one another and arranged within a square area, and a set of strips of various lengths or lengths of flexible card or both, adapted to be laid in the grooves to form letters or numerals. The base member 1, Fig. 1, may be a flat sheet of cardboard, wood, plaster, rubber, other mouldable material or metal, and has grooves 2, 3, 4, which may be pressed out of a metal sheet or cut out from or pressed into the sheet. A recess 16 accommodates strips not in use and may have a hinged or slidable cover. In one example, Fig. 6, a letter "R" is formed from three straight strips 8, 11, 16 and two strips 9 having curved end portions.
Patent GB-213161-A (GB)
Title: Improvements in steam engines
IPC: F01B17/04
Filed: 1922-12-01
Abstract: 213,161. Watson, H. B., and Billetop, T. C. Dec. 1, 1922. Valve-chests and casings.-The valve-chest of a uniflow engine is drained in the manner described for cylinders in Specification 171,748, [Class 122 (i), Engine and like cylinders &c.]. The water passes through grooves f<9> in a plunger f<6> on the valve-rod into a chamber f<13> and is forced from the chamber by the descent of the plunger. Specification 200,129, [Class 122 (ii), Steam-engine distributing and expansion valves &c.], also is referred to.
Patent GB-557663-A (GB)
Title: Improvements in vertical retorts for zinc smelting
IPC: C22B19/14
Filed: 1942-10-26
Abstract: 557,663. Zinc retorts. NATIONAL SMELTING CO., Ltd. Oct. 26, 1942, No. 15015. Convention date, Nov. 21, 1941. [Class 82 (i)] A vertical retort for the distillation of zinc from a charge of zinc-bearing material and carbonaceous reducing agent is pro. vided on the inside of its wall: with a series of short pegs or projections F. The pegs may consist of refractory bricks set in sockets in the walls, and they may be matched by shallower projections G on the outside of the retort walls. If the retort has long side walls and short end walls the pegs may be near the top of the side walls and bottom of the end walls. They may be so placed that they are not opposite each other on opposite walls. The pegs may serve to support thin refractory plaster or tile linings H, and they may project through the linings. The outside projections may support plaster or thin tile patches L on the outside of the retort walls. Specifioations 298,922, 298,923, 298,924, [all in Class 82 (i)], 361,605, and 370,217, are referred to.
Patent GB-635242-A (GB)
Title: Improvements in or relating to reducing valves
IPC: G05D16/06
Filed: 1947-06-06
Abstract: 635,242. Pressure-regulating valves. DAVIS, Sir R. H., and SIEBE, GORMAN, & CO., Ltd. June 6, 1947, No. 15032. [Class 135] In a pressure-reducing valve for gas of the type wherein the valve closure element 3 is controlled by a diaphragm 8 movable as one with the element and subject to the opposed pressures of a spring 13 and the gas that has passed the closure element, there is a throttled connection between the two sides of the diaphragm so that the gas on its way to the outlet passes into and through a further chamber at a still lower pressure, and any variation in the back pressure at the outlet will affect both sides of the diaphragm equally and will have no effect on the valve. In an embodiment, gas flows in through a filter 26, past the valve 3, up through a guide 5 for the valve spindle 4, and into an intermediate chamber where it acts on the underside of the diaphragm 8. From this chamber, the gas flows through a passage 15 passing through the diaphragm and out through an orifice to another chamber where it can act on the upper-side of the diaphragm. From this upper chamber, the gas is led off through circumferential orifices in a packing ring 11, and through a passage 18 to an outlet 19. A byepass passage between inlet 2 and outlet 19 is controlled by a needle valve 23.
Patent GB-645479-A (GB)
Title: Improvements in wall or floor tiles, slabs or the like
IPC: E04F15/08
Filed: 1947-06-06
Abstract: 645,479. Tiles &c. CARTER, A. O. June 6, 1947, No. 15036. [Class 87(i)] A wall or floor tile or slab 3 is provided at the lower part of its side faces with a spacing lug or lugs 4. The lugs of adjacent tiles are arranged to interfit with clearance. Dovetail grooves may be provided in the rear face of the tile.
Patent GB-276605-A (GB)
Title: Anti-slipping device for the feet of ladders
IPC: E06C7/46
Filed: 1927-06-07
Abstract: 276,605. Zons, (nÚe Jensen), M. June 7, 1927. No Patent granted (Sealing fee not paid). Ladders.-An antislip device for ladders consists of a metal frame A and a centrally disposed hollow metal washer B having inclined sides to contact with the sides of blocks of cork or the like C. On tightening the washer by means of the nut D, the sides grip into the sides of the blocks and secure them into position in the frame.
Patent GB-788189-A (GB)
Title: Improvements relating to cathode ray tubes
IPC: H01J31/20
Filed: 1955-05-25
Abstract: 788,189. Colour television tubes. GENERAL ELECTRIC CO. May 25, 1955 [May 27, 1954], No. 15130/55. Class 39(1). Temperature compensation of a colour control grid is obtained by making the side members of the grid frame of parallel overlapping sections joined by mid-sections which expand differentially. The grid frame 12 comprises metallic supports 20, 21 to which the grid wires 14 are attached, and side members 22 each comprising elements 26, 28 secured, e.g., by welding, to a free intermediate member 27, a screw 32 and slot 32a preventing transverse motion but permitting a longitudinal displacement. In modifications, Figs. 3, 4 (not shown), the members 26, 28 are of channel section enclosing a round or square-sectioned intermediate member. The lengths and materials of the side members are chosen such that under the heat of processing or the cold of storage there is no straining of the grid wires.
Patent GB-741334-A (GB)
Title: Improvements in or relating to hair dyes
Inventor: ECKARDT WOLFGANG MAX JOSEPH
IPC: D06P3/30
Filed: 1953-06-01
Abstract: The invention comprises substances stated to be dyes for animal fibres, e.g. hair (see Group IV (c)) of the formula: (NO2)mR(NHR1)n(NR2R3)p where R is an aromatic radical, R1, R2 and R3 are aliphatic radicals containing at least one hydroxy group, and m, n and p are integers having a value of at least 1.  Values specified for R1, R2 and R3 are -CH2CH2OH, -CH2.CH2.CH2OH, -CH2CHOH.CH3, -CH2. CHOH.CH2OH, and -CH2.CH2.CH2.CH2OH, and the radicals of polyethylene glycol or polypropylene glycol.  In examples: (1) 1(b -ethylolamino) - 4 - amino - 3 - nitrobenzene (prepared from 1,4-diamino-3-nitrobenzene and ethylene chlorhydrin) is reacted with ethylene chlorhydrin to give 1-(di-b -ethylolamino)-4-(b -ethylolamino)-3-nitrobenzene, and (2) 1,4-diamino-3-nitrobenzene is reacted with (a) 3 mols. glycidol, (b) 1 mol. ethylene chlorhydrin and 2 mols. glycidol, or (3) 3 mols. 3-chloropropanol-1.ALSO:The invention comprises dyes for animal fibres of the formula:-<FORM:0741334/IV(c)/1> where R is an aromatic radical, R1, R2 and R3 are aliphatic radicals containing at least one hydroxy group, and m, n and p are integers having a value of at least 1. Value specified for R1, R2, and R3 are CH2, CH2, OH, -CH2, CH2, CH2, OH, -CH2, CH OH, CH3, -CH2, CH OH, CH2 OH and -CH2, CH2 CH2 CH2 CH2 OH, and the radicals of polyethylene glycol or polypropylene glycol. The products dye animal fibres, in particular human hair, and may be used together with other nitro dyes, such as those of Specification 707,618.  In examples, (1) 1(b -ethylolamino)-4amino-3-nitrobenzene (prepared from 1.4-diamino-3-nitrobenzene and ethylene chlorhydrin) is reacted with ethylene chlorhydrin to give 1-(di-b -ethylolamino)-4-(b -ethylolamino)-3-nitrobenzene, which may be used in aqueous solution with ammonia, alcohol, and a fatty alcohol sulphonate to dye hair and to dye human hair when mixed with 1.2-diamino-4-nitrobenzene; (2) 1.4-diamino-3-nitro benzene is reacted with (a) 3 mols. glycidol, (b) 1 mol. ethylene chlorhydrin and 2 mols. glycidol; or (3) 3 mols. 3-chloropropanol-1, and the products are each used with 5-nitro-2.4-diamino-toluene, ammonia, and a wetting agent in aqueous solution to dye white hair.
Patent GB-1469703-A (GB)
Title: Quick release of lines under tension
IPC: F42B3/00
Filed: 1974-04-05
Abstract: 1469703 Quick-release fastenings COMPAGNIE FRANCAISE DES PETROLES 5 April 1974 [10 April 1973] 15170/74 Heading E2A In a quick-release device for a line under tension e.g. an anchor line, comprising a body 3 connecting an anchor chain 23 to an anchor 24 via a shackle pin 27, one or more explosive charges are disposed in the pin 27, the charges being controlled by a signal receiver and one or more detonators. A number of such lines may be provided; their release is effected simultaneously or singly. The shackle pin may incorporate a weakened area.
Patent GB-1126667-A (GB)
Title: A process for coating metal surfaces
IPC: B05D7/14
Filed: 1967-04-03
Abstract: 1,126,667. Coating metals. INVENTA A.G. FUR FORSCHUNG UND PATENTVERWERTUNG. 3 April, 1967 [5 April, 1966], No. 15191/67. Heading B2K. A process for coating metal surfaces comprises applying particles of a thermoplastic material at least substantially entirely in the form of cylinders of maximum diameter 0.05 to 0.4 millimetres and length 0.05 to 0.4 millimetres' to the surface of the metal and sintering them to form a coating. The particles can be made by cutting mono-filaments of the thermoplastic material. Suitable thermoplastic materials that may be used are high-pressure, normal-pressure and medium-pressure polyethylene, polypropylene, cellulose acetobutarate, hard and soft polyvinyl chloride, chlorinated polyethers, polyamines such as polycaproelactam, polyenanthlactam, polyoapryl lactam, polyundecalactam, polyhexamethylenesebicinate, polyhexamethylene adipite and copolyamides from the known monomers, acrylonitrile-butadiene-styrene co-polymers. The micro granular material may contain various additives such as dyestuffs, delustering agents, melting flow agents, dispersing agents, antistatics, light and heat stabilisers, ageing resistors, adhesion facilitating agents, plasticizers and agents for reducing the surface tension of a melt of the thermoplastics. The process may be used for coating metal sheets, plates, rods or tapes. The metal may be heated to the fusion temperature of the thermoplastic before the particles are applied to it, for example by dipping the metal into a zone of stationary or whirled-up particles or by sprinkling or rolling the particles onto it. The metal surface should be degreased for example by sand blasting or chemical methods, before coating.
Patent GB-630739-A (GB)
Title: Improvements in meat tenderizing machines
IPC: A22C9/00
Filed: 1947-06-10
Abstract: 630,739. Meat tendering. TOLEDO SCALE CO. June 10, 1947, No. 15199. Convention date, Oct. 2, 1946. [Class 28(ii)] In a meat-tenderizing machine the tenderizing knife rolls 75 and 76 are mounted in a unitary frame, Fig. XIV, comprising end plates 73 with tie rods 74, which is removable as a unit from the machine, and the frame can be hinged open about pivots 77 to facilitate cleaning of the rolls. The rolls comprise toothed cutters 80 mounted on shafts with spacing washers, generally as described in Specification 628,048. The knife roll unit is located between the overhung projections of the end plates 2 and 3 of the machine on a base. The meat can thus be fed in through a top chute 105, Fig. VII, pass through the tenderizing rolls and drop into a receptacle placed under the overhung rolls. The rolls are driven from a motor 6 located on the base, suitable gearing being provided to drive each roll shaft through dog clutch couplings 41, Fig. II, the roll shafts being slidable endways to disconnect such couplings before removal of the roll unit for cleaning. The end plates 73, Fig. XIV, of the removable roll unit, being hinged together at 77 for opening out, are held together by a pivoted handle or bale 78. To remove the unit an access cover 104 is lifted upwards about hinge 108 so that the bale 78 can be grasped in one hand, while the other hand rotates the knurled ends 50 of short shafts 47 to disengage a locking plate 52 from slots 49 when the shaft 47 can be pulled out to the right to disengage them from the bores 93 in the ends of the roll shafts 75, 76. The roll unit as a whole can then be moved to the right so disengaging the dog clutches 41 from their driving shafts. The roll unit can then be carried away and opened up by springing out the ends of the handle 78 from the holes in the end plate 73 so that the frames 73 can be hinged open about 77, thus separating the rolls from each other. The meat guides 94 and 95, which are in the form of comblike wires 96 arranged as shown between the cutters 80, can then be lifted away as a whole. A cleaning fork 99 can then be used during the washing to remove pieces of meat from between the cutters, which can be rotated by a handle 63. When the roll unit is re-mounted in the machine slidable kurled collars 88 support the roll shafts and they can be rotated by the fingers to re-align the parts of the dog clutches together. The handle 63 may be removed and inserted through the casing of the motor to turn it over by hand. The machine in use is entirely cased in. Specification 600,527 is referred to.
Patent GB-678926-A (GB)
Title: A process for obtaining aromatic hydrocarbons and hydroxy compounds from gas oil fractions
IPC: C07C45/50
Filed: 1949-06-07
Abstract: A light naphtha fraction of steam-cracked gas oil is contacted with CO and H2 in presence of a cobalt catalyst under carbonylation conditions to convert olefins to aldehydes, the product catalytically hydrogenated to convert aldehydes to alcohols without hydrogenation of aromatic rings, and the products fractionated to separate aromatic hydrocarbons and hydroxy compounds.  Di-olefins in the feed yield polyhydroxy compounds of high molecular weight used in producing lubricants and additives, plasticizers and drying oils.  The gas oil fraction may boil at about 70-500 DEG  F.  A cut of about 140-290 DEG F. or narrow cuts of 60 DEG  F. or less may be used to simplify recovery of specific aromatics such as benzene, toluene or xylenes. A 140-290 DEG  F. cut containing 1-3 per cent, based on olefins, of a cobalt compound such as the naphthenate is fed concurrently with a mixture containing 1 CO : 0.5-2 H2 through a reactor which may be packed and is operated at 250-450 DEG  F. and 2500-3500 p.s.i.g. Products are cooled, passed to a decobalter where metal carbonyl is decomposed by heating at 300-350 DEG  F. and 100-150 p.s.i.g., if desired, while passing a stripping gas, and then to a hydrogenator containing cobalt-silica gel, tungsten, nickel or molybdenum sulphide, copper chromite or like catalyst, and operated at 350-500 DEG  F. and 2500-3500 p.s.i.g.  Distillation gives an overhead which is fractionated into benzene, toluene, and xylene cuts, and bottoms which are separated into alcohols and heavy polymeric polyhydroxy compound.  Examples describe the treatment of naphtha fractions to obtain benzene, toluene, including nitration grade, and xylenes, and polymeric polyhydric alcohols of M.W. 400-600.  The Provisional Specification includes an example of the carbonylation of dicyclopentadiene and subsequent hydrogenation to hydroxy derivatives.