baber/WOPTO huggingface dataset:
Patent GB-855489-A (GB)
Title: Isolation of dimethyl phenol
Inventor: HOLDSWORTH ERNEST CLIFFORD
IPC: C07C37/00
Filed: 1959-04-23
Abstract: A process for obtaining 3 : 5-dimethyl phenol comprises selectively crystallizing this material in the form of its sodium salt from a solution of a coal tar fraction containing the same in a non-polar organic solvent, e.g. an aromatic hydrocarbon such as naphtha or xylole.  Preferably only a portion of the phenolic material present in the coal tar phenol fraction is converted to the sodium salt.  The latter may be formed by adding hot concentrated aqueous sodium hydroxide to the heated phenol fraction, preferably only sufficient sodium hydroxide being employed to form the sodium salts of one half of the substituted phenolic material present.  Examples are furnished.
Patent GB-897249-A (GB)
Title: Apparatus for converting values from one measuring system into another
Inventor: DANILEWICZ LUDOMIR
IPC: G06G3/00
Filed: 1960-04-21
Abstract: 897,249. Calculating-apparatus; counting- apparatus. HYDROFORCE Ltd. April 11, 1961 [April 12, 1960; May 13, 1960], Nos. 13955/60 and 17078/60. Class 106 (1). A device for converting numerical values from one unit system to another comprises respective value registering means and a common rotary drive mechanism for driving these means at a predetermined ratio corresponding to the relationship between the systems. A lead screw 1, Fig. 1, manually or electrically driven, rotates a toothed wheel 3. This, in turn, rotates wheels 4, 5 having predetermined numbers of teeth, the relationship between which represents the conversion ratio. These wheels drive revolution counters 6, 7 respectively to indicate equivalent numerical values in the two unit systems. In a second embodiment, Fig. 2, a toothed wheel 15 drives, through an idler wheel 13, toothed wheels 11, 12 on shafts each carrying a pointer indicating on dials 14. The shafts also drive, through worm gears, revolution counters 17. Apertures for viewing the counter wheels are provided in the dial and are such that, during a transfer operation, two numbers are visible simultaneously, the pointer overlying that which is to be read.
Patent GB-652870-A (GB)
Title: Improvements in gas turbines
IPC: F02C7/18
Filed: 1947-05-23
Abstract: 652,870. Gas turbine plant. STALKER, E. A. May 23, 1947, No. 13958. Convention date, Nov. 19, 1943. [Class 110(iii)] [Also in Group XII] Combustion air from an axial flow compressor passing along a duct 7a is further compressed by blades 13-16 and enters the annular combustion chamber 3 by ducts 50. The remainder of the compressor delivery passes around the combustion chamber and mixes with the combustion products in front of the turbine blades 8-11. The combustion chamber, Figs. 11-13, has four fuel pipes 52 and the air is admitted tangentially through the ducts 50. The chamber has an annular outlet 55 which is divided by guide blades 56 and discharges the combustion products with a whirl velocity in the direction of rotor rotation. The major part of the combustion air is admitted to the annular space 53. Most of the remainder goes to chambers 58, 59 from which it issues tangentially and some goes to the cavities of the guide blades 56 and issues tangentially from them through slots 57. Cooling air from the duct 7a goes through passages 7c, Fig. 6b, into the hollow stator blades 9, 11 and thence through passages 39, 40, Fig. 6a, into the hollow running blades 8, 10. Some issues from slots in the blades and the residue issues from the blades through tangentially directed convergent slots 33, 37. Cooling air enters the gas stream also through the clearance spaces 32, 34, 36, 38 and 18, 20, 22, 24 and through slots similar to slots 37, Fig. 6b, in the rotor surface. Further cooling air passes from the chambers 59 through ducts 50a and issues at 17<SP>1</SP>. The hollow blades, Fig. 9, have two cavities. The cooling air is supplied to cavity 42 and passes to the other cavity through throttling slots 44, 45. The high-pressure air is directed over the concave blade surface through convergent tangential slots 26, 27, 28. The low-pressure air is directed over the concave surface through slots 29, 30, 31 and through nose slots 25. The sum of the widths of the slots such as 26, 27, 28 or 29, 30, 31 should be between 2 and 10 per cent of the blade chord and individual widths should be between 0.2 and 2 per cent of the blade chord. The maximum thickness of the blades is at or to the rear of the mid-point of the chord and the nose radius is more than 8 per cent of and substantially less than the maximum thickness.
Patent GB-167877-A (GB)
Title: Improvements in and in the manufacture of tubes for the frames of motor car wind screens and for other purposes
IPC: B60J10/02
Filed: 1920-05-21
Abstract: 167,877. Hackett, W. W., and Accles &. Pollock, Ltd. May 21, 1920. Wind-screens. - Compound tubes employed in the manufacture of motor car wind screens comprise an inner tube d over which is passed an outer tubular member a which, by one or more processes, has been drawn to a cross-section having a pair of V-shaped projections. By a further diawing process the projections are compressed to form a channel-shaped recess c with flanges b of double thickness.
Patent GB-196828-A (GB)
Title: Improvements in tracks for use on vehicles having self-laying tracks
IPC: B62D55/22
Filed: 1922-05-18
Abstract: 196,828. Armstrong Siddeley Motors, Ltd., and Bonnaud, H. M. May 18, 1922. Endless-track vehicles. - The universallyjointed links A of portable tracks are provided with teeth D co-operating with driving sprockets and surfaces G co-operating with corresponding surfaces F on adjacent links to limit the relative twisting of the adjacent links about the longitudinal axis of the track. In a modification the teeth D are provided on each side of the links A, those on one side being placed between those of the adjacent link. This arrangement also limits twisting about an axis perpendicular to the track by the sides of the teeth coming into contact.
Patent GB-554374-A (GB)
Title: Improvements in or relating to extra air valves for internal combustion engines
IPC: F02D9/00
Filed: 1942-11-25
Abstract: 554,374. Extra-air. valves. LAIRDET, G. E. Nov. 25, 1942, No. 14054/41. [Class 7 (ii)] Extra air is admitted to the induction pipe during overrunning by a valve 22 normally held closed against a seating 34 by a spring 33, but opened to admit air from an inlet 20 to the induction pipe at 21, by an electromagnet 24 arranged in circuit with the generator or a secondary battery charged thereby, and with a switch closed by operation of the engine throttle. The valve is so arranged that, when in the closed position, the suction in the induction pipe is communicated only to a recess 35 around the valve, which is substantially balanced both axially and radially. In a modification, the air inlet communicates with a recess around the valve, which is of inverted-cup form.
Patent GB-1091034-A (GB)
Title: Method of producing fuel cell electrode catalytic material
IPC: B01J27/185
Filed: 1966-03-30
Abstract: A flocculant precipitate consisting of nickel, silver and a nickel-phosphorus alloy is produced by preparing a solution comprising a nickelous salt, a silver salt having a silver ion concentration not exceeding 0.55 moles Ag+ per mole of Ni++, an alkali metal pyrophosphate having at least 1.00 mole of P2O7= for each 1.45 moles combined total of Ag+ and Ni++ and an alkali metal hypophosphite having in excess of 2.75 moles of (H2PO2)- for each 1.00 mole of Ni++ and raising the pH by the addition of hydroxyl ions to produce the required precipitate.  The nickelons and silver salts are preferably sulphates and the reduction is preferably carried out at 52-82 DEG C.
Patent GB-141310-A (GB)
Abstract: 141,310. Sterling Telephone & Electric Co., and Davey, W. C. Dec. 31, 1918. Drawings to Specification. Automatic exchange systems.-All exchange apparatus is at once restored and rendered free, independently of any action on the part of the calling subscriber, if a call is made to an engaged or vacant line. For this purpose, the calling subscriber transmits the selecting-impulses over one line before removing his receiver to complete the loop circuit, the selector circuits being such that complete restoration is effected if a circuit is established between the selector wipers (as would happen in calling a busy line) before the completion of the loop circuit at the calling station. After a successful call, the exchange apparatus is completely restored upon either party replacing his receiver. The system described is identical with that described in Specification 141,106. Specifications 141,311 and 141,312 also are referred to,
Patent GB-629227-A (GB)
Title: Improvements in and relating to electric circuits for voltage regulating systems
IPC: H02P9/14
Filed: 1945-06-05
Abstract: 629,227. Automatic voltage-control systems. BRITISH THOMSON-HOUSTON CO., Ltd. June 5, 1945, No. 14155. Convention date, June 6, 1944. [Class 38 (iv)] In a voltage regenerator for a three-phase alternator, the bucking field of the alternator exciter is energized from the alternator output through a T-connected potential transformer and a rectifier. In Fig. 1 the output voltage of 3-phase alternator 4 is controlled through the field of the D.C. exciter 10, preferably an amplidyne, as described in Specification 539,835 which supplies the alternator field winding 9. The T-connected potential transformer 12 connected to the output of alternator 4 energizes the full-wave rectifier 21 which supplies the bucking control winding 11 of exciter 10, self-excited through winding 22. A decrease in the output voltage of the alternator produces a larger decrease in the excitation of bucking winding 11 than that in boosting winding 27 which is supplied from rectifier 28 to cause the exciter to produce a higher voltage which restores the alternator output. Similarly, a rise of alternator voltage is limited by the consequential rise of excitation in winding 11 in excess of that in winding 27. The sensitivity of the regulating system is increased by the series saturated reactor 25, the setting of which also sets the level of regulation. Circulating currents produced during parallel operation are compensated for by a voltage drop produced in resistor 30 connected across the secondary of current transformer 31. Frequency compensation is effected through the parallel resonant circuit connected across resistor 17, and comprising inductance 33 and capacitor 32. Stabilizing transformer 35 applies a corrective excitation to field winding 34 to eliminate hunting. The positive phase sequence response of the potential transformer network 12 ensures that the action of the regulating system will be corrective irrespective of phase voltage unbalance. In a modification, Fig. 2, the winding 38 replaces the previous windings 11, 27, and is fed by the difference in output currents from opposed bridge rectifiers, 39, 21, and the stabilizing transformer 35 is connected directly in series with winding 38. Manual control of the main alternator is effected by rheostat 37 after switch 44 has been moved to the left.
Patent GB-142466-A (GB)
Abstract: 142,466. Espujols, R. L. d'. April 24, 1919, [Convention date]. Water-tube boilers; feed-water, controlling. - Each tubular element, II, III, IV, Fig. 2, connected through junction boxes to upper and lower steam and water collectors, consists of a number of coiled tubes arranged in spaced vertical planes, the tubes having looped overlapping ends, and the coils having a rectangular formation. The Specification as open to inspection under Sect. 91 (3) (a) describes also a float-operated feed regulating apparatus comprising a float chamber 6, Fig. 1 (Cancelled), connected to the steam and water collectors 1, 3 and an oscillating valve 10 with rectilinear openings mounted freely in its casing so that it is always surrounded by water. After passing through the valve, the water is forced through a pipe 11 and is directed axially into the steam collector. This subject-matter does not appear in the Specification as accepted.
Patent GB-383900-A (GB)
Title: Improvements in and connected with windscreen wipers
IPC: B60S1/24
Filed: 1932-05-21
Abstract: 383,900. Windscreen-cleaners. WERNERT, G., 56, Cours Morand, Lyons, France. May 21, 1932, No. 14475. Convention date, May 21, 1931. [Class 138 (i).] A crank arm 5 mounted on a shaft 4 which is adapted to be rotated by electric, pneumatic, or other means, is connected by rods 8, 9 to arms 15 fixed to the spindles of the windscreen wipers 1, 2, whereby, as the shaft 4 rotates, oscillating movement is imparted to the wipers. The rods 8, 9 are each formed with a spherical head 12 located in a socket member 14 having pivotal connection with the arm 15.
Patent GB-519412-A (GB)
Title: Ribbon conveyor for carrying sheets of sensitized material through automatic or semi-automatic photographic machines
IPC: G03B27/22
Filed: 1939-05-15
Abstract: 519,412. Endless-belt elevators. COLEMAN, A. -May 15, 1939, No. 14521. [Class 78 (i)] A conveyer for carrying sheets of sensitized material through photographic machines comprises two endless strips of wide U - form presenting flat borders between which the sheets are gripped during their travel through the machine, the intermediate part of the strips being set back clear of the sheets and perforated to give free access to the treating liquid. One ribbon passes round a driven roller 12 and rollers 13 and 21 and is pressed by curved blades 19 into contact with the other ribbon which passes round rollers 18, 13. The rollers 18, 21 are mounted in side plates 1 detachably secured to the conveyer head, and the roller 13 is supported in bearings 14 telescopically supported on a cross bar 1b and under the action of a spring 16 whereby the ribbons are tensioned. The driving roll 12 for the strips is mounted on a stationary tubular support 2 and driven by pins engaging notches in a detachable disk or flywheel 24 on a driving shaft 23 common to a number of conveyer heads. The tanks 5 containing the treating material for the sheets are raised up to embrace the conveyer and secured to the head by fastening devices 6, and flexible strips 9 effect the spacing. The tank contents are agitated by stirrers 25 driven from the shaft 13a of the roller 13.
Patent GB-1027112-A (GB)
Title: Improvements in or relating to the connection of bodies formed from metal filaments
IPC: B23P11/00
Filed: 1964-04-08
Abstract: 1,027,112. Jointing; making pipes, silencers, filters &c. WURTTEMBERGISCHE METALLWARENFABRIK. April 8, 1964 [April 10, 1963], No. 14525/64. Headings B3A and B3V. [Also in Divisions F1 and F2] A method of joining the edges of one or more parts made from metal filaments comprises compressing the edges to be joined to reduce the pore-volume, as by rolls or a press, and then connecting the edges as by welding, riveting, screws, pegs or an adhesive. The edges may be overlapped, and the joint-thickness may be less than that of the parts 3. Alternatively, the edges may be compressed and turned into flanges 2, Fig. 4 (not shown) or a single part 1 may be formed into a hollow cylinder, Fig. 6 (not shown), for use as a filter, silencer or a pipelagging. A metal reinforcing strip or strips may be welded or soldered between or externally of the edges to be joined. Filaments or powder of another metal may be dispersed on or in the joint surfaces.
Patent GB-762757-A (GB)
Title: Improvements in or relating to sealing metal tubes by pressure welding
Inventor: ANDREWS FREDERICK
IPC: B23K20/00
Filed: 1953-05-22
Abstract: In making a capsule containing e.g. radon or gaseous Kr85, tubing e.g. of aluminium is swaged at each end and degreased and annealed, one end is sealed off by cold pressure welding between blades which also part the tube, the tube is exhausted, radon is introduced and the second end is sealed as before by hand cutters.ALSO:A radon filled nasopharyngial applicator of thin walled tubing e.g. of aluminium is sealed by swaging the tube at least in the region where the seal is to be made to disrupt any oxide film on the internal surface and effecting a cold pressure weld in the swaged portion.
Patent GB-455313-A (GB)
Title: Improvements in the process for the production of valuable hydrocarbons by treatment with hydrogenating gases of distillable carbonaceous materials
IPC: C10G1/08
Filed: 1935-05-18
Abstract: The conversion of organic compounds containing oxygen or sulphur into hydrocarbons or hydrogenated hydrocarbons by reaction with hydrogen, e.g. the conversion of phenols and cresols into the corresponding cyclic hydrocarbons is carried out in presence of catalysts comprising polysulphides of metals of Groups V, VI and VII prepared by precipitation from aqueous solutions or suspensions of compounds of said metals.  The catalytic activity of the precipitated polysulphide is improved by heating the precipitate to 350--600 DEG C. in presence of inert gases, e.g. hydrogen, nitrogen, hydrogen sulphide or hydrocarbon vapours, the sulphide being thus converted into crystalline form.  The sulphide may be used in conjunction with the usual catalysts, promoters, and carriers specified in hydrogenating reactions.ALSO:The production of valuable hydrocarbon, and contingently derivatives thereof, e.g. phenols, by the treatment of carbonaceous materials with hydrogenating gases under elevated conditions of temperature and pressure, e.g. destructive hydrogenation, the hydrogenation, purification of mineral oils, the conversion of oxygen and sulphur containing organic compounds into hydrocarbons or hydrogenated hydrocarbons, e.g. the conversion of phenols or cresols into the corresponding hydrocarbons, is carried out in presence of catalysts comprising polysulphides of metals of Groups V, VI, and VII prepared by precipitation from an aqueous composition selected from a class consisting of solutions and suspensions of compounds of said metals.  The polysulphide may be precipitated by the addition of acids, e.g. sulphuric acid, to solutions of ammoniacal salts of thio acids, e.g. ammonium thiomolybdate.  The catalytic activity of the precipitated polysulphide is improved by heating the precipitate to 350--600 DEG C., in presence of inert gases, e.g. hydrogen, nitrogen, hydrogen sulphide, hydrocarbon vapours, &c., the sulphide being thus converted into crystalline form.  The sulphide may be usd in conjunction with the usual catalysts, promoters, and carriers specified in hydrogenating reactions.  114 grams of molybdenum trioxide is slowly added to and dissolved in 1500 ccs. of an aqueous solution of ammonium sulphide containing about 12 per cent hydrogen sulphide and 8 per cent ammonia, the temperature being maintained below 60 DEG C., 1600 ccs. of a 25 per cent solution of sulphuric acid are then added and molybdenum trisulphide is precipitated.  The precipitate is dried and heated in a stream of hydrogen to 427 DEG  C.  A petroleum oil of viscosity index 62 mixed with an equal volume of burning oil is passed with hydrogen through a reaction zone packed with lumps of the catalyst and heated to 371--388 DEG  C.  After fractionation of the product an improved lubricating oil is obtained having a viscosity index 95.
Patent GB-611966-A (GB)
Title: Improvements in the steaming of textiles
IPC: D06C7/00
Filed: 1946-05-14
Abstract: <PICT:0611966/IV (c)/1> Apparatus for steaming textiles comprises a closed steam chamber 11, a lateral conveyer or conveyers 25, 26 and 27 disposed in said chamber, an inclined guide member 23 positioned above the conveyer, a beater roll 22 positioned vertically above the guide member, means 21 for introducing the cloth into the chamber and means for passing the cloth over the beater roll whereby the cloth falls in accordion folds 24 on to the guide member and thence in such folds slides on to the conveyer with the folds in a substantially upright position.  Advantageously a plurality of conveyers are used disposed one above the other, the discharge end of each conveyer except the last being positioned above the next conveyer as described in Specification 611,939.  The apparatus may also include a closed pretreating chamber 10 having rolls 17 over which the cloth passes backwards and forwards, and means 18 for introducing a fluid medium. Specification 573,279 also is referred to.
Patent GB-289271-A (GB)
Title: Improvements in or relating to collapsible chairs
IPC: A47C4/24
Filed: 1927-05-31
Abstract: 289,271. Bauer, W. J. May 31, 1927. Folding-seats.-In a X-frame folding chair of the kind in which the seat 13 is pivoted at P to the legs 11, and the legs 10 are extended upwardly and pivoted at 25 to the back 14, stops being provided tc limit the unfolding movement, the seat 13 is arranged to project rearwardly beyond the back, at 23, forming a portion to be used for manipulating the chair when folding or unfolding the same. Arms 15 may be provided, forming a hinged con. nection between the seat 13 and the back 14, and embodying hooks 20 which engage with a seatsupporting rod 16 to limit the unfolding. The seat-manipulating portion is preferably formed with a hand hole 23, and a similar hole may be provided at 24.
Patent GB-773346-A (GB)
Title: Improved rotary shaft seal
IPC: F16C33/78
Filed: 1955-05-30
Abstract: 773,346. Bearings. OPEL AKT.-GES., A. May 20, 1955 [May 28, 1954], No. 14612/55. Drawings to Specification. Class 12 (1). The subject-matter of this Specification is substantially the same as that described in Specification 769,986 but the claims differ.
Patent GB-1459414-A (GB)
Title: Fasteners
IPC: A44B17/00
Filed: 1973-03-27
Abstract: 1459414 Stud-and-socket fasteners A M RUMACK 27 March 1974 [27 March 1973] 14687/73 Heading E2B The engaging parts 1, 2 of a press-stud fastener are provided with thin web portions 5 which may be pierced by a needle for sewing to a garment. The parts may be of nylon. The webs are braced by radial ribs 6. For Figures see next column
Patent GB-1173644-A (GB)
Title: Production of Alkali Metal Salts of Phenylglycine.
Filed: 1967-03-31
Abstract: 1,173,644. Salts of phenylglycine. BADISCHE ANILIN- & SODA-FABRIK A.G. 31 March, 1967 [2 April, 1966], No. 14719/67. Heading C2C. Alkali metal salts of phenyl glycine are produced by the reaction of aniline with hydrocyanic acid and formaldehyde or of aniline with hydroxy aceto-nitrile in aqueous solution at elevated temperature followed by hydrolysis of the phenylglycine nitrile formed by means of an alkali metal hydroxide at elevated pressure, the reaction being carried out with a continuous supply of the reactants into a cascade arrangement consisting of at least two stages at a temperature between 80 and 130 C., aniline, hydrocyanic acid and formaldehyde or aniline and hydroxyacetonitrile being supplied to at least one condensation stage and alkali metal hydroxide being supplied to at least one hydrolysis stage. If desired, there may be more than one condensation stage and more than one hydrolysis stage.
Patent GB-450493-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/00
Filed: 1935-05-20
Abstract: 450,493. Vacuum cleaners. DIZER, Ltd., M. C., Africa House, Kingsway, and WILLIAMSON, S., 7, Tudor Gardens, Kingsbury, both in London. May 20, 1935, No. 14737. [Class 8 (i)] [See also Group XXIX] A vacuum cleaner has a motor driven fan 1 which may draw air through either the suction nozzle 3 or the hollow handle 5. A conical valve seating 6 has ports communicating with the pipes 4, 5 and valve member 9 is pressed onto its seat by a spring 12 and controls the path of the air to the fan. In a modification, a valve is used having a ported flange 14 engaging a flat seat. A transparent cover 13 is fitted to the valve member 9.